Design of flanges part of tank dome

FIELD: machine building.

SUBSTANCE: design (21) of flanged part of the tank dome includes: flanged part projecting outside from the external surface of side wall of the tank dome ensured at section of the main tank body, made with possibility to store LT liquefied gas; tank casing (6) with possibility to cover section of the main tank body with space (5) between them; and compensation rubber section (11) ensured between the flanged part (22) and casing (6) of the tank, and made with possibility to tight the space (5), at that section of the heat transfer suppressing material, i.e. fibre reinforced plastic, is ensured on at least specified section of the flanged part (22), at that specified section is located between the side wall (3a) of the tank dome (3) and compensation rubber section (11).

EFFECT: temperature decreasing of LT liquefied gas stored in the tank upon ambient temperature rise due to the heat-insulating materials.

9 cl, 19 dwg

 

The technical field to which the invention relates

[0001] the Present invention relates to the design of the flange section of the dome of the tank, provided on the tank of a tanker for transportation of liquefied gas, which is stored liquefied gas, for example, low-temperature liquefied natural gas (LNG).

The level of technology

[0002] Fig. 17 shows one example of a tank for liquefied gas, secured on the traditional tanker for liquefied gas. Tank 1 for liquefied gas comprises an area of 2 of the main body horizontally elongated tank and dome 3 of the tank, provided on the upper section 2 of the main body of the tank. Section 2 of the main body of the tank includes a cylindrical section 2a of the housing. Both open plot plot 2a of the housing respectively are closed housings 2b covers, and each has an essentially hemispherical shape.

[0003] the Dome 3 of the tank includes a vertical cylindrical side wall 3a. The upper open area of the side wall 3a is closed by the housing 3b of the cover, having essentially hemispherical shape. In addition, although not shown, for example, to the dome 3 tank attached a set of pipes through which the liquefied gas is fed into and released from area 2 of the main body of the tank.

[0004] Consequently, the sustained fashion, as shown in Fig. 17, the insulating element 4 provided on the surface of the tank 1 for liquefied natural gas. This prevents the transfer of heat from the outside air to the tank 1 for liquefied natural gas. In addition, at site 2 the main body of the tank is provided with a casing 6 of the tank with the ability to cover the insulating element 4 with the space 5 between them. In addition, the dome 3 of the tank is provided with a dome cover (not shown) made with the possibility to cover the insulating element 4 with a space between them.

[0005] As shown in Fig. 18, the flange section 8 is provided on the side wall 3a of the dome 3 of the tank. The flange section 8 is an annular plate case and is essentially horizontally from the outer surface of the side wall 3a of the dome 3 of the tank.

[0006] Further, the design of the flange 10 of the plot dome tank spherical tank 9 for liquefied gas provided on the tanker for liquefied gas, will be explained with reference to Fig. 19A and 19B (see PTL 1, for example).

[0007] the Reservoir 9 for liquefied natural gas, is shown in Fig. 19A and 19B, and the tank 1 for liquefied natural gas, is shown in Fig. 17 differ from each other as to the form of section 2 of the main body of the tank. Other components are similar to each other, so is their explanation will be omitted.

[0008] As shown in Fig. 19A, the design of the flange 10 of the site of the dome of the tank are made so that the annular compensating rubber portion 11 is provided between the upper open edge section of the casing 6 of the tank and the bottom surface of the annular flange section 8. Compensatory rubber portion 11 has the function of sealing the space 5 formed within the area 2 of the main body of the tank, the flange section 8, etc., regardless of thermal expansion and thermal compression section 2 of the main body of the tank, the flange section 8, etc., Thus compensating rubber portion 11 seals the space 5.

List of links

Patent literature

[0009] PTL 1: publication posted the application for a utility model Japan No. 62-12593

The invention

Technical problem

[0010] In the conventional structure 10 of the flange area of the dome of the tank shown in Fig. 19A and 19B, the flange section 8 is made of metal. In this regard, passed dome 3 of the tank and section 2 of the main body of the tank heat of outdoor air is transferred to the metal flange section 8, and this causes an increase in the temperature of the liquefied gas stored in the area 2 of the main body of the tank.

[0011] To prevent this increase, t is mperature need to increase the amount of thermal insulation materials, including insulating element 4 provided on the section 2 of the main body of the tank, the dome 3 of the tank, the flange section 8, etc.,

[0012] the Present invention was created to solve the above problems, and an object of the present invention is the provision of construction flange section of the dome of the tank, are able to suppress the temperature increase of the low-temperature liquefied gas stored in the area of the main body of the tank.

Solution

[0013] the design of the flange section of the dome of the tank according to the present invention is provided on the tank for liquefied gas, and includes: a flange section protruding outward from the outer surface of the side wall of the dome of the tank, provided on the section of the main body of the tank, made with the possibility of storing low-temperature liquefied gas; the casing of the tank with the ability to cover the section of the main body of the tank with a space between them; and compensatory rubber section, provided between the flange portion and the casing of the tank and is made with the possibility of sealing the space in which the plot of the overwhelming heat transfer material, made of plastic, fiber reinforced, provided on at least a given uchastkovogo plot moreover, given the site is located between the side wall of the dome of the tank and the wear of the rubber section.

[0014] According to the storage tank for liquefied gas, which provided the design of the flange section of the dome of the tank according to the present invention, the area of the main body of the reservoir can store low-temperature liquefied gas, and to the dome of the tank attached to the pipe through which the liquefied gas is fed into and is discharged from the tank. The casing of the tank and the flange section covers the area from the main body of the reservoir with the space between the plot of the main body of the reservoir and each of the casing of the tank and the flange of the site. In addition, since the compensation of the rubber section is deformable, compensatory rubber part can be sealed inner space of the casing of the tank regardless of thermal expansion and thermal compression area of the main body of the tank, the dome of the tank and the flange section.

[0015] According to the design of the flange area of the dome of the tank of the present invention, since the area of the overwhelming heat transfer material, made of plastic, fiber reinforced, secured on the given section of the flange section can be prevented transfer of heat to the outside air from the side of vneshnej the peripheral edge area of the flange section to the side of the dome of the low-temperature reservoir. This can be suppressed by increasing the temperature of the liquefied gas stored in the area of the main body of the tank.

[0016] since the area of the overwhelming heat transfer material is provided on at least a predetermined area of the flange section located between the side wall of the dome of the tank and countervailing rubber section, it is possible to prevent the phenomenon in which the compensation of the rubber section is cooled by a dome low-temperature reservoir, and this leads to low-temperature brittleness of the expansion of the rubber section.

[0017] In the design of the flange section of the dome of the tank according to the present invention on at least the area of the flange section located between the side wall of the dome of the tank and countervailing rubber section is provided with a compensating thermal compression section, configured to compensate for deformation caused by thermal compression stations, including the flange section and the dome of the tank.

[0018] thus, even if thermal compression area of the main body of the tank, the dome of the tank and the flange section is invoked by a low-temperature liquefied gas stored in the area of the main body of the tank, and the outer peripheral side area of the flange section deformities is in such direction, to pull me in, this deformation due to thermal compression can be compensated by compensating thermal compression area. Thus, it can be reduced the load on the United site, where the site of the overwhelming heat transfer material of plastic, fiber reinforced, flange section and another section connected to each other.

[0019] In the design of the flange section of the dome of the tank according to the present invention the area of the overwhelming heat transfer material formed in the range from a given section of the flange section to the outer peripheral edge of the flange section of the site.

[0020] In this case, can be effectively suppressed the amount of heat external air is transmitted from the outer peripheral edge section of the flange section to the side of the dome of the low-temperature reservoir.

[0021] In the design of the flange section of the dome of the tank according to the present invention compensates thermal compression area is formed so that its cross-section in the radial direction of the flange section has a curved shape, comprising essentially L-shaped or substantially U-shaped.

[0022] In this case, if the outer peripheral side area of the flange section is deformed by thermal compression dome tank f is analogo plot, etc. in this direction, to pull me in, compensating thermal compression section having a curved shape, comprising essentially L-shaped or substantially U-shaped cross-section, can be deformed in such a direction that, for example, increasing the angle L-shape or the width of the U-shaped form. Taking a simple configuration, the force of deformation of the flange section, based on thermal compression can be compensated, and can be suppressed by the deformation of the outer peripheral side of the flange section of the site.

[0023] In the design of the flange section of the dome of the tank according to the present invention compensates thermal compression area is formed at the site of the overwhelming heat transfer material or the plot of the overwhelming heat transfer material is formed on the presence of compensating thermal compression area.

[0024] In this case, the plot of the overwhelming heat transfer material may have the compensation function of the heat of compression and suppression of heat transfer or compensating thermal compression area may have the compensation function of the heat of compression and suppression of heat transfer. In this regard, the configuration can be simplified.

[0025] In the design of the flange section of the dome of the tank according to the present invention the flange section is made so that soedinitelnaya part and parcel of the overwhelming heat transfer material formed by molding in one piece, moreover, the connecting part is located on the side of the dome of the tank section of the overwhelming heat transfer material, made of plastic reinforced with fiber.

[0026] In this case, can be secure airtightness of the United area, and can be improved the efficiency of the flange section.

[0027] In the design of the flange section of the dome of the tank according to the present invention the area of the overwhelming heat transfer material and the inner peripheral side flange section of land located on the side of the dome of the tank section of the overwhelming heat transfer material, made of plastic, fiber reinforced, formed so that the inner peripheral side area of the flange section is formed connecting part and the base end part; plot overwhelming heat transfer material and a connecting part formed in one piece; and a connecting part formed in one piece with the plot of the overwhelming heat transfer material, is connected with the base end part connected to the side wall of the dome of the tank.

[0028] As described above, by combining the plot of the overwhelming heat transfer material and fitting for the education component parts, the plot of the overwhelming heat transfer material made of the C plastic fiber reinforced, and the connecting portion can be reliably connected to each other. In this connection may be secure airtightness of the United area. In addition, the connecting part integral with the plot of the overwhelming heat transfer material, is connected with the base end part connected to the side wall of the dome of the tank. At the same time, increases the degree of freedom of positioning of the United area, where the connecting portion and the base end section are connected to each other.

[0029] In the design of the flange section of the dome of the tank according to the present invention the inner peripheral side of the flange section of the site is made of metal, with the inner peripheral side of the site is located on the side of the dome of the tank section of the overwhelming heat transfer material, made of plastic reinforced with fiber.

[0030] as the metal inner peripheral side section is made of metal, the flange section and side wall of the dome of the tank can be welded to each other. Thus, it can be used the traditional way.

[0031] In the design of the flange section of the dome of the tank according to the present invention the area of the overwhelming heat transfer material made of plastic, armaround the nd-glass, or plastic reinforced with carbon fiber.

[0032] In this case, plastic, reinforced with fiberglass, or plastic reinforced with carbon fiber, can be used as the material of the site of the overwhelming heat transfer material depending on the desired strength and heat-insulating characteristics of the site of the overwhelming heat transfer material.

Useful effects of the invention

[0033] According to the design of the flange area of the dome of the tank of the present invention, the heat transfer from the outside air can be reduced, and can be suppressed by increasing the temperature of the liquefied gas stored in the area of the main body of the tank.

Brief description of drawings

[0034] [Fig. 1] Fig. 1 is a view in longitudinal section showing the construction of the flange section of the dome of the tank according to a variant of run 1 of the present invention.

[Fig. 2A and 2B] Fig. 2A is a diagram showing the simulation result of the temperature distribution of the respective areas of construction flange section of the dome of the tank according to a variant of run 1, and Fig. 2B is a chart that removed the insulating element of Fig. 2A.

[Fig. 3] Fig. 3 is a view in longitudinal section showing the state when the PMC is l tank and the flange section, it is shown in Fig. 1, deformed by thermal compression.

[Fig. 4A and 4B] Fig. 4A is a partial perspective view in cross section of the simulation model showing the state before the heat of compression of the dome of the tank and the flange of the plot shown in Fig. 1. Fig. 4B is a partial enlarged perspective view in cross section of the simulation model showing the flange section shown in Fig. 4A.

[Fig. 5A and 5B] Fig. 5A is a partial perspective view in cross section showing the result of simulation showing the state when there was thermal compression dome of the tank and the flange of the plot shown in Fig. 4A, and Fig. 5B is a partial enlarged perspective view in cross section showing the result of simulation showing the flange section shown in Fig. 5A.

[Fig. 6A and 6B] Fig. 6A is a graph showing the simulation result of the temperature distribution of the respective areas of construction flange section of the dome of the tank under option run 2 of the present invention, and Fig. 6B is a graph showing the simulation result of the temperature distribution of the dome of the tank and the flange of the plot shown in Fig. 6A.

[Fig. 7] Fig. 7 is with the battle view in longitudinal section, shows the state when the dome of the tank and the flange section shown in Fig. 6B, deformed by thermal compression.

[Fig. 8A and 8B] Fig. 8A is a graph showing the simulation result of the temperature distribution of the respective areas of traditional design flange section of the dome of the tank, and Fig. 8B is a graph showing the simulation result of the temperature distribution of the dome of the tank and the flange of the plot shown in Fig. 8A.

[Fig. 9] Fig. 9 is a partial view in longitudinal section showing the construction of the flange section of the dome of the tank under option 3 of the present invention.

[Fig. 10] Fig. 10 is a partial view in longitudinal section showing the construction of the flange section of the dome of the tank under option 4 of the present invention.

[Fig. 11] Fig. 11 is a partial view in longitudinal section showing the construction of the flange section of the dome of the tank under option 5 of the present invention.

[Fig. 12] Fig. 12 is a partial view in longitudinal section showing the construction of the flange section of the dome of the tank under option run 6 of the present invention.

[Fig. 13] Fig. 13 is a frequent CNY view in longitudinal section, showing the design of the flange section of the dome of the tank under option run 7 of the present invention.

[Fig. 14] Fig. 14 is a partial view in longitudinal section showing the construction of the flange section of the dome of the tank under option run 8 of the present invention.

[Fig. 15] Fig. 15 is a partial view in longitudinal section showing the construction of the flange section of the dome of the tank under option run 9 of the present invention.

[Fig. 16] Fig. 16 is a partial view in longitudinal section showing the construction of the flange section of the dome of the tank under option run 10 of the present invention.

[Fig. 17] Fig. 17 is a schematic view in longitudinal section showing the traditional essentially cylindrical tank for liquefied gas.

[Fig. 18] Fig. 18 is a partial enlarged perspective view showing the dome of the tank, secured on the traditional tank for liquefied gas, shown in Fig. 17.

[Fig. 19A and 19B] Fig. 19A is a partial view in longitudinal section showing the construction of the flange section of the dome of the tank other traditional spherical tank for liquefied gas, and Fig. 19B is a top view of ku is Ola tank, it is shown in Fig. 19A.

Description options

[0035] Next will be explained with reference to Fig. 1-5B variant run 1 design flange section of the dome of the tank according to the present invention. The design of the flange 21 of the site of the dome of the tank of this scenarios is provided on the tank for liquefied gas, made with the possibility of storing liquefied gas, for example, low-temperature liquefied natural gas (LNG). Next will be explained an example in which the design of the flange 21 of the site of the dome of the tank is applied to traditional tank 1 for liquefied natural gas, is shown in Fig. 17. In this regard, the same reference position used for the same components as in the traditional tank 1 for liquefied natural gas, and their detailed explanation is omitted.

[0036] the design of the flange 21 of the plot dome tank this option, perform applicable to, for example, a tank for liquefied gas, provided on the tanker for liquefied gas.

[0037] the Reservoir 1 for liquefied gas applied to the design of the flange 21 of the site of the dome of the tank shown in Fig. 1, includes: section 2 of the main body of the tank (see Fig. 17), made with the possibility of storing low-temperature liquefied gas; the dome 3 of the tank, ensure the military on upper section 2 of the main body of the tank; and the casing 6 of the tank with the ability to cover the section 2 of the main body of the reservoir with the space between them.

[0038] As shown in Fig. 1, the flange section 22 includes an inner peripheral side section 23 and the outer peripheral side section 24.

[0039] As shown in Fig. 1, the design of the flange 21 of the plot dome tank includes: a ring-shaped flange section 22, the speaker essentially horizontally from the outer surface of the side wall 3a of the dome 3 of the tank; and an annular compensating rubber portion 11 provided between the lower surface of the flange section 22 and the upper open edge section of the casing 6 of the tank and configured to seal the space 5.

[0040] the Inner peripheral side section 23 of the flange section 22 is provided on the side of the dome 3 of the tank and includes a base end section 23a and the connecting section 23b, both of which are made of metal (e.g. aluminum alloy). The base end section 23a is an annular plate body made of metal (e.g. aluminum alloy), and its inner peripheral edge section connected to the outer surface of the side wall 3a of the dome 3 of the tank by welding or similar Thus, the base end section 23a, you will SHS essentially horizontally from the outer surface of the side wall 3a. The connecting section 23b is a short cylindrical body and extends in a vertical direction, and its lower end section connected to the top surface of the outer peripheral edge section of the base end portion 23a by welding or similar

[0041] As shown in Fig. 1, the outer peripheral side section 24 is provided outside the inner peripheral side section 23 and made of plastic, fiber reinforced (FRP next) by moulding in one piece. The outer peripheral side section 24 is formed so that its cross-section in the radial direction of the flange section 22 has an essentially L-shaped. The outer peripheral side section 24 includes a vertical section 24a and a horizontal section 24b. Short cylindrical reinforcing section 25 is provided on the outer peripheral edge area of the horizontal section 24b. Additionally, the lower portion of the vertical section 24a is connected with the connecting section 23b by molding in one piece.

[0042] since the connecting section 23b (inner peripheral side section 23) and the vertical section 24a (the outer peripheral side section 24) are connected to each other, as described above, ensures airtightness of that linked site. As shown in Fig. 1, with denitely section 23b is provided outside a vertical section 24a. In this case, as described below, if there is thermal compression dome 3 of the tank, the inner peripheral side of section 23 of the flange section 22 and so forth, the connecting section 23b of the inner peripheral side area 23 is deformed in the inner direction (in such a direction that ensures airtightness) to the vertical section 24a of the outer peripheral side section 24. As a result, the loss of air between them by thermal compression dome 3 tanks, etc. can be prevented.

[0043] Additionally, as shown in Fig. 1, the insulating element 4 having a predetermined thickness is provided on the whole outer surface of the dome 3 of the tank. In addition, the entire surface of the inner peripheral side of section 23 of the flange section 22 is also covered with the insulating element 4. In addition, the inner peripheral surface of the vertical section 24a of the outer peripheral side section 24 of the flange section 22 and the outer peripheral surface of the bottom portion is a vertical section 24a is also covered with the insulating element 4. As shown in Fig. 1, the insulating element 4 is not provided on the upper and lower surfaces of the horizontal section 24b of the outer peripheral side of the flange section 24 of section 22. The reason is, is itself horizontal section 24b has an insulating property, and horizontal section 24b and a metal inner peripheral side section 23 spaced from each other.

[0044] As described above, as the metal inner peripheral side section 23 and part vertical section 24a is covered with the insulating element 4 can be prevented transfer of heat to the outside air through the metal inner peripheral side section 23 in the direction of the dome 3 of the tank.

[0045] the Compensation of the rubber portion 11 shown in Fig. 1, is an annular deformable rubber-like elastic body. Compensatory rubber portion 11 is provided between the bottom surface of the outer peripheral section of the outer peripheral side section 24 of the flange section 22 and the upper open edge section of the casing 6 of the tank. The upper portion of the compensation of the rubber portion 11 is connected with the lower surface of the outer peripheral area of the flange section 22 by bolts 27, and the lower portion connected to the upper open edge section of the casing 6 of the tank by bolts 27.

[0046] Next will be explained with reference to Fig. 1 plot of the overwhelming heat transfer material included in the design of the flange 21 of the site of the dome of the tank.

[0047] the Plot of the overwhelming heat transfer material prevents the transfer of heat from the outside who is ear through the flange section 22 to the dome 3 of the tank. This function can be achieved by formation of the external peripheral side of the flange section 24 of section 22 as the site of the overwhelming heat transfer material, made of FRP, which has low thermal conductivity.

[0048] as FRP, which is a material of the outer peripheral side of the flange section 24 of section 22, can be used plastic, fiber-glass reinforced (hereinafter GFRP) or plastic reinforced with carbon fiber (hereinafter CFRP).

[0049] These GFRP and CFRP have very low thermal conductivity compared to metal, such as aluminum alloy or stainless steel. In this regard, in the case where the outer peripheral side section 24 of the flange section 22 is made, for example, GFRP, the outer peripheral side section 24 may serve as the site of the overwhelming heat transfer material.

[0050] Here, as shown in Fig. 1, the flange section 22 is not completely made of FRP, i.e. the inner peripheral side area 23 is made of metal. The reason is that the inner peripheral side area 23 may be welded to the side wall 3a of the metal dome 3 of the tank, there may be used the traditional way.

[0051] Fig. 2A is a diagram showing the simulation result of the temperature distribution is s relevant sections of the structure 21 of the flange area of the dome of the tank, it is shown in Fig. 1, and Fig. 2B is a graph showing the simulation result of the temperature distribution of the dome 3 of the tank and the flange section 22 shown in Fig. 2A.

[0052] As is clear from Fig. 2A and 2B, the horizontal part 24b of the outer peripheral side section 24 of the FRP flange section 22 and the upper portion of the vertical section 24a of the outer peripheral side section 24 of the FRP flange section 22 have essentially the temperature of the outside air. However, since the outer peripheral side section 24 of the FRP has a low thermal conductivity, the heat is almost not transmitted to the lower section of the vertical section 24a and the connecting section 23b connected with it, which is covered with the insulating element 4. In this regard, each of the temperature in the lower section of the vertical section 24a and the temperature of the connecting section 23b, United with him, a minor above the temperature of the dome 3 of the tank, but is low temperature. In addition, the temperature of the base end portion 23a of the metal inner peripheral side of section 23 of the flange section 22 is essentially equal to the temperature of the dome 3 of the tank, i.e. a low temperature. In this regard, it is clear that the heat of the outdoor air is almost not transmitted through the flange section 22 to the dome 3 of the tank.

[0053] Next, b is to be explained by the action of the structure 21 of the flange area of the dome of the tank, performed as described above. First, according to the tank for liquefied gas, which provided the design of the flange 21 of the site of the dome of the tank shown in Fig. 1, section 2 of the main body of the tank (see Fig. 17) can store low-temperature liquefied gas, and a pipe (not shown) through which the liquefied gas is fed into and is discharged from the tank for liquefied gas, is attached to the dome 3 of the tank. The casing 6 of the tank and the flange section 22 can cover the area 2 of the main body of the reservoir space 5 between section 2 of the main body of the reservoir and each of the casing 6 of the tank and the flange section 22. In addition, since the compensation of the rubber portion 11 is deformed, the compensation of the rubber portion 11 may be sealed inner space 5 of the housing 6 of the tank regardless of thermal expansion and thermal compression section 2 of the main body of the tank, dome 3 of the tank and the flange section 22.

[0054] In this regard can be provided airtightness of the internal space 5 of the housing 6 of the tank, and, for example, nitrogen gas or etc., can be suitably airtight sealed space 5.

[0055] According to the structure 21 of the flange area of the dome of the tank as indicated above, and which p is the cauldron in Fig. 1, the outer peripheral side section 24 of the flange section 22 is made of FRP, and the outer peripheral side section 24 serves as the site of the overwhelming heat transfer material. In this regard, can be prevented transfer of heat to the outside air from the outer peripheral edge section of the flange section 22 to the side of the dome 3 low-temperature reservoir.

[0056] the Plot of the overwhelming heat transfer material formed in the range from the predetermined area between the outer surface of the side wall 3a of the dome 3 of the tank and countervailing rubber portion 11 to the outer peripheral edge section of the flange section 22. In this regard, can be effectively suppressed the amount of heat external air is transmitted from the outer peripheral edge section of the flange section 22 to the side of the dome 3 low-temperature reservoir.

[0057] In this case, can be effectively suppressed the increase in the temperature of the liquefied gas stored in the area 2 of the main body of the tank.

[0058] since the outer peripheral side section 24 of the flange section 22 is made of FRP, the plot of the overwhelming heat transfer material is provided on at least a predetermined area of the flange section 22 and the specified section is located between the side wall 3a of the dome 3 reserve the RA and countervailing rubber portion 11. In this regard, it is possible to prevent the phenomenon in which the compensation of the rubber portion 11 is cooled by dome 3 low-temperature reservoir, and this leads to low-temperature brittleness of the compensation of the rubber portion 11.

[0059] Next will be explained with reference to Fig. 1 compensating thermal compression area included in the design of the flange 21 of the site of the dome of the tank.

[0060] a Compensating thermal compression section suppresses the deformation of the outer peripheral side of the flange section 24 of section 22, when the sites, including the dome 3 of the tank and the flange section 22, cooled by liquefied gas stored in the area 2 of the main body of the tank, and this leads to thermal contraction of these sites. As shown in Fig. 1, a compensating thermal compression section is provided on at least the area of the flange section 22, and this area is located between the side wall 3a of the dome 3 of the tank and countervailing rubber section 11.

[0061] more Specifically, a compensating thermal compression section is formed so that its cross-section in the radial direction of the flange section 22 has a curved shape, which is essentially L-shaped. Additionally, compensating thermal compression area is the area that includes the curved area where the mountains of the horizontal section 24b and a vertical section 24a of the outer peripheral side of the flange section 24 of the section 22 are connected to each other.

[0062] a Compensating thermal compression section shown in Fig. 1, is formed so that its cross-section in the radial direction of the flange section 22 has a curved shape, which is essentially L-shaped. In this regard, as shown in Fig. 3, if there is thermal deformation of the outer peripheral side of the flange section 24 of section 22 due to thermal compression dome 3 of the tank, the flange section 22, etc., in such a direction that the outer peripheral side section 24 is drawn inward, which compensates thermal compression area having essentially L-shaped cross-section, can be deformed inward so that increases the angle compensating thermal compression area.

[0063] In this case, taking a simple configuration, deformation of the outer peripheral side of the flange section 24 of section 22 can be suppressed by partial deformation of the compensating thermal compression section when the flange section 22 is deformed based on thermal deformation.

[0064] Optionally, can be reduced the load on the United site, where the site of the overwhelming heat transfer material of FRP (outer peripheral side section 24) of the flange section 22 and the inner peripheral side section 23 are connected to each other.

[0065] As shown in Fi is. 1, a compensating thermal compression section is formed at the site of the overwhelming heat transfer material. In this regard, the area of the overwhelming heat transfer material may have the compensation function of the heat of compression and suppression of heat transfer. Thus, this configuration can be simplified.

[0066] Although not shown, instead of the above, the plot of the overwhelming heat transfer material can be formed on the presence of compensating thermal compression area. In this case, a compensating thermal compression area may have the compensation function of the heat of compression and suppression of heat transfer. Thus, this configuration can be simplified.

[0067] Next will be explained Fig. 4A, 4B, 5A and 5B. Fig. 4A is a partial perspective view in cross section of the simulation model showing the state before the heat of compression of the dome 3 of the tank and the flange section 22 shown in Fig. 1. Fig. 4B is a partial enlarged perspective view in cross section of the simulation, showing the flange section 22 shown in Fig. 4A. Fig. 5A is a partial perspective view in cross section of the simulation, showing the state when there was thermal compression dome 3 of the tank and the flange section 22, shown n the Fig. 4A.

[0068] Fig. 5B is a partial enlarged perspective view in cross section of the simulation, showing the flange section 22 shown in Fig. 5A.

[0069] In the flange section 22 shown in Fig. 5A and 5B, the offset of the tank in a direction radially inward indicated by color density. The lighter the color becomes, the greater the magnitude of the offset.

[0070] As shown in Fig. 5B, in a state when there was thermal compression dome 3 of the tank and the flange section 22, the amount of displacement of each of the outer peripheral side section 24, a reinforcing section 25 and compensating thermal compression area of the flange section 22 becomes larger, and, in particular, becomes more than offset a vertical section 24a. In this regard, it is clear that the vertical section 24a compensated thermal compression.

[0071] Next will be explained with reference to Fig. 6A-8B, the results of simulations of the distributions of the temperature structure 31 of the flange area of the dome of the tank, etc., scenarios 2, etc. of the present invention and an example in which the dome 3 of the tank, the flange section 32, etc. deformed by thermal compression.

[0072] Fig. 6A is a graph showing the simulation result of the temperature distribution corresponding plots intercept the products flange 31 of the site of the dome of the tank under option run 2. Fig. 6B is a graph showing the simulation result of the temperature distribution of the dome 3 of the tank and the flange section 32 shown in Fig. 6A. Fig. 7 is a view in longitudinal section showing the state when the dome 3 of the tank and the flange section 32 shown in Fig. 6B, deformed by thermal compression.

[0073] the design of the flange 31 of the site of the dome of the tank under option run 2 shown in Fig. 6A, 6B and 7, and the design of the flange 21 of the site of the dome of the tank under option run 1 shown in Fig. 2A, 2B and 3, differ from each other by the fact that In embodiment 1 shown in Fig. 2B, is provided with a compensating thermal compression area having essentially L-shaped cross section; and in embodiment 2 shown in Fig. 6B, is not provided with such a compensating thermal compression area. In addition, an embodiment 2 is the same as option 1 execution, so the repetition of the same explanation is excluded.

[0074] the Flange section 32 of the design of the flange 31 of the site of the dome of the tank under option run 2 shown in Fig. 6A and 6B, includes an inner peripheral side section 33 and the outer peripheral side section 34. Each of the inner peripheral side section 33 and the outer peripheral bokovo the section 34 is formed of an annular flat plate case. The inner peripheral side section 33 is made of a metal such as aluminum alloy, as in embodiment 1. The outer peripheral side section 34 is made of FRP as in embodiment 1, and serves as the site of the overwhelming heat transfer material. Although not shown, the outer peripheral edge portion inner peripheral side section 33 and the inner peripheral edge section of the outer peripheral side section 34 vertically overlap to connect with each other through a series of bolts passing through them in the vertical direction so that the supported airtightness. The contacting surfaces of these sections 33 and 34 are connected to each other, for example, by molding in one piece and are hermetically sealed.

[0075] Additionally, as shown in Fig. 6A, the insulating element 4 having a predetermined thickness is provided on the whole outer surface of the dome 3 of the tank. In addition, the entire surface of the inner peripheral side section 33 of the flange section 32 and the inner peripheral edge section of the outer peripheral side area 34 is also covered with the insulating element 4.

[0076] As is clear from Fig. 6A and 6B, the temperature of the outer peripheral side section 34 of the FRP flange section 32 is there the TSS temperature of outside air. However, since the outer peripheral side section 34 of the FRP has a low thermal conductivity, the heat is almost not transmitted to the inner peripheral edge section of the outer peripheral side of section 34, is covered with the insulating element 4. In this regard, the temperature of the inner peripheral edge section of the outer peripheral side section 34 slightly above the temperature of the dome 3 of the tank, but is low temperature. Because of this, the temperature of the metal inner peripheral side section 33 of the flange section 32 is a low temperature essentially equal to the temperature of the dome 3 of the tank. Thus, it is clear that the heat of the outdoor air is almost not transmitted through the flange section 32 of the dome 3 of the tank.

[0077] Fig. 8A is a graph showing the simulation result of the temperature distribution of the respective areas of traditional design 10 flange section of the dome of the tank, shown, for example, in Fig. 19A and 19B. Fig. 8B is a graph showing the simulation result of the temperature distribution of the dome 3 of the tank and the flange section 8 shown in Fig. 8A.

[0078] the Flange section 8 traditional design 10 flange section of the dome of the tank shown in Fig. 8A and 8B, formed one circle is lokim plate body, and its material is metal, such as aluminum alloy.

[0079] As shown in Fig. 8A, the insulating element 4 having a predetermined thickness is provided on the whole outer surface of the dome 3 of the tank. In addition, the entire surface area of the flange section 8 is also covered with the insulating element 4, and the plot continues from essentially radially middle area of the flange section 8 to the side of the dome 3 of the tank.

[0080] As is clear from Fig. 8A and 8B, in the traditional design 10 flange section of the dome of the tank flange section 8 is made of metal and has a high thermal conductivity, while the section of the overwhelming heat transfer material is not provided.

In this regard, although the area of the flange section 8 located on the side of the dome 3 tank covered with insulating element 4, the heat of the outdoor air is transferred to the flange section 8 covered with the insulating element 4, and increases the temperature of the inner peripheral edge section of the flange section 8. Thus, it is clear that the amount of heat the outdoor air passed to the dome 3 of the tank, there are more than the amount of heat in each of embodiments 1 and 2.

[0081] Next will be explained a method of manufacturing a flanged section 22 provided on the dome 3 of the tank shown in Fig. 1. the before welding flange section 22 to the side wall 3a of the dome 3 of the tank, the flange section 22 includes: an outer peripheral side section 24 of FRP (in which a compensating thermal compression section made by section suppresses the heat transfer material); the base end portion (base end section) 23a forming the inner peripheral side section 23 made of metal; and a connecting part (connecting section) 23b forming the inner peripheral side section 23 made of metal. In this connection, first make the base end portion (base end section) 23a and the connecting part (connecting section) 23b.

[0082] Next, the manufactured composite part by combining the plot of the overwhelming heat transfer material and the connecting portion 23b, using, for example, formatmoney stamp. Here, in order to plot the overwhelming heat transfer material and the connecting portion 23b obtained by molding in one piece, could be connected to each other, for example, the surface of the connecting portion 23b made of metal, is subjected to a coarsening of the surface. Thus, FRP, which is a plot of the overwhelming heat transfer material, can be connected with the surface of the connecting portion 23b.

[0083] In addition, as shown in Fig. 1, the base end part 23a forming internal accessories the emergency side section 23, made of metal, are welded to the outer surface of the side wall 3a of the dome 3 of the tank. Then, as shown in Fig. 1, the connecting portion 23b formed in one piece with the plot of the overwhelming heat transfer material, are welded in position to the base end portion 23a, which is connected to the side wall 3a of the dome 3 of the tank. Thus, the flange section 22 may be provided on the dome 3 of the tank.

[0084] As described above, by combining the plot of the overwhelming heat transfer material and the connecting portion 23b for the manufacture of composite parts, increases the degree of freedom of positioning of the United area, where the connecting portion 23a and the metal connecting portion 23b are connected to each other. In this regard, improving the quality of connection, and airtightness holding area, where the area of the overwhelming heat transfer material of FRP and metal connecting portion 23b attached to each other, can be easily provided through the joint parts.

[0085] When it can be reliably ensured the airtightness of the space 5 in the casing 6 of the tank.

[0086] Next will be explained with reference to Fig. 9 the design of the flange 38 of the site of the dome of the tank under option 3 of the present invention. Option 3, is provided in Fig. 9, an embodiment 1 shown in Fig. 1, differ from each other by the fact that in embodiment 1 shown in Fig. 1, the outer peripheral side section 24 and the reinforcing section 25 of the flange section 22 is made of FRP by molding in one piece; and in embodiment 3 shown in Fig. 9, the outer peripheral section 40 of the outer peripheral side section 42 of the flange section 39 is made of a metal such as aluminum alloy, and the outer peripheral section 40 and the main body 41 of the outer peripheral side of the plot, made of FRP, are connected to each other by bolts 27. In addition, option 3 is the same as option 3, shown in Fig. 1. In this regard, the same reference position used for the same components, and their explanations are omitted. Thus, the support pipe (not shown) which has a capability to suppress vibration of the pipe may be welded to the outer peripheral section 40.

[0087] the Main body 41 of the outer peripheral side of the plot shown in Fig. 9, serves as the site of the overwhelming heat transfer material. Compensating thermal compression area formed by the main body 41 of the outer peripheral side of the site, including vertical section 24a.

[0088] As shown in Fig. 9, connecting castac 23b is provided outside a vertical section 24a in the radial direction. Instead, the coupling section 23b may be provided inside a vertical section 24a in the radial direction.

[0089] Fig. 10 shows a design of flange 54 of the site of the dome of the tank under option 4 of the present invention. An embodiment 4 shown in Fig. 10 and an embodiment 1 shown in Fig. 1, differ from each other on the flange section 55 and the flange section 22.

[0090] In the flange section 22 scenarios 1, shown in Fig. 1, the connecting section 23b annular inner peripheral side section 23 and the vertical section 24a annular outer peripheral side section 24 are connected to each other by set screws 26 passing through them in a horizontal direction so as to overlap each other on the outer and inner sides.

[0091] In the flange section 55 option 4, as shown in Fig. 10, the connecting section 23b annular inner peripheral side section 23 and the vertical section 24a annular outer peripheral side section 24 are connected to each other via a connecting structure described below.

[0092] Each of the connecting section 23b of the inner peripheral side area 23 and a vertical section 24a of the outer peripheral side of the first section 24 is bent so to be essentially L-shaped cross-section. Two annular horizontal section 56 and 57, curved so as to be parallel to the horizontal direction are connected to each other by set screws 26 passing through them in the vertical direction so as to vertically overlap each other.

In addition, option 4 is the same as an embodiment 1 shown in Fig. 1. In this regard, the same reference position used for the same components, and their explanations are omitted.

[0093] the Outer peripheral side section 24 shown in Fig. 10, serves as a compensating thermal compression area and also serves as the site of the overwhelming heat transfer material. As shown in Fig. 10, the horizontal sections 56 and 57 are provided on the outside of the internal space 5 of the housing 6 of the tank. However, instead, horizontal sections 56 and 57 may be provided on the side of the internal space 5 of the housing 6 of the tank.

[0094] Fig. 11 shows a design of flange 61 of the site of the dome of the tank under option 5 of the present invention. The flange section 62 design 61 flange section of the dome of the tank under option 5, as shown in Fig. 11, includes an inner peripheral side section 63, the outer peripher any side plot 64, section 65 of the overwhelming heat transfer material and compensating thermal compression sections 66 and 67. In addition, each of the inner peripheral side section 63 and the outer peripheral side section 64 is formed of an annular flat plate element and is made of metal, such as aluminum alloy. As in embodiment 1, section 65 of the overwhelming heat transfer material is made of FRP.

[0095] As shown in Fig. 11, section 65 of the overwhelming heat transfer material is essentially a short cylindrical shape, and its cross-section in the radial direction is essentially Z-shaped. The contacting surface of the upper horizontal section 65a of section 65 of the overwhelming heat transfer material and the inner peripheral section of the outer peripheral side section 64 are connected to each other, for example, by molding in one piece and bonded to each other by bolts 68 so that the supported airtightness. In addition, the contacting surface of the lower horizontal section 65b of section 65 of the overwhelming heat transfer material and the outer peripheral portion inner peripheral side section 63 are connected to each other, for example, by an adhesive and bonded to each other by bolts 68 so that the supported airtightness.

[0096] Additionally, as shown in Fig. 11, the insulating element 4 having a predetermined thickness is provided on the whole outer surface of the dome 3 of the tank. In addition, the inner peripheral side section 63 and section 65 of the overwhelming heat transfer material of the flange section 62 is also covered with the insulating element 4. The lower and upper end sections of section 65 of the overwhelming heat transfer material, respectively, serve as compensating thermal compression sections 66 and 67.

[0097] As shown in Fig. 11, when the outer peripheral side section 64 is made of a metal such as aluminum alloy, bearing pipe (not shown) may be welded to the outer peripheral side 64, as explained in embodiment 3 shown in Fig. 9.

[0098] Fig. 12 shows a design of flange 72 of the site of the dome of the tank under option run 6 of the present invention. An embodiment 6 shown in Fig. 12, an embodiment 5 shown in Fig. 11 differ from each other on the flange section 73 and the flange section 62.

[0099] In the flange section 62 version 5, shown in Fig. 11, section 65 of the overwhelming heat transfer material is formed so that its cross-section in the radial direction is essentially Z-shaped. what about the flange section 73 scenarios 6, it is shown in Fig. 12, section 74 of the overwhelming heat transfer material is formed so that its cross-section in the radial direction is essentially an I-beam. Horizontal section 65a provided on the upper end section of section 74 of the overwhelming heat transfer material and continuing in directions radially inward and outward, is bonded to the outer peripheral side section 64 by bolts 68, and a horizontal section 65b provided on the lower end section of section 74 of the overwhelming heat transfer material and continuing in directions radially inward and outward bound from the inner peripheral side section 63 by bolts 69.

[0100] in Addition, an embodiment 6 is the same as option 5, as shown in Fig. 11. In this regard, the same reference position used for the same components, and their explanations are omitted.

[0101] Fig. 13 shows a design of flange 46 of the site of the dome of the tank under option run 7 of the present invention. An embodiment 7 shown in Fig. 13, and an embodiment 2 shown in Fig. 6A, 6B and 7 differ from each other on the flange section 47 and the flange section 32.

[0102] In the flange section 32 scenarios 2, shown in Fig. 6A and 6B, the outer peripheral edge section koltseobrazno what about the inner peripheral side section 33 and the inner peripheral edge section of a ring-shaped outer peripheral side section 34 are connected to each other by set screws (not shown), passing through them in the vertical direction so as to vertically overlap each other.

[0103] In the flange section 47 scenarios 7, shown in Fig. 13, each of the outer peripheral edge of the annular area of the inner peripheral side section 33 and the inner peripheral edge of the annular area of the outer peripheral side section 34 is bent so as to have an essentially L-shaped cross-section. Two short vertical cylindrical section 48 and 49, curved so as to be parallel to the vertical direction, are connected to each other by set screws 50 passing through them in a horizontal direction so as to overlap each other on the inner and outer sides. In addition, an embodiment 7 is the same as an embodiment 2 shown in Fig. 6A and 6B. In this regard, the same reference position used for the same components, and their explanations are omitted.

[0104] Two curved sections, each of which has an essentially L-shaped cross-section, the flange section 47 serve as compensating thermal compression sections 51. The outer peripheral side section 34 serves as the site of the overwhelming heat transfer material.

[0105] thus, even if thermal deformation of the internal p is refering side section 33 of the flange section 47, it is shown in Fig. 13, is in such a direction that the inner peripheral side section 33 is pulled toward the dome 3 of the tank, and two compensating thermal compression area 51, each of which has an essentially L-shaped, deformed in such a direction to be separated from each other, thermal compression, based on such thermal deformation can be compensated, and can be suppressed by the deformation of the outer peripheral side section 34 of the flange section 47.

[0106] These two short vertical cylindrical section 48 and 49, shown in Fig. 13, protrude toward the upper side of the flange section 47 and is not provided in the inner space 5 of the housing 6 of the tank. In this regard, a large number of bolt holes formed on the two vertical portions 48 and 49, is unlikely to be a cause of deterioration of the air permeance of the interior space 5.

[0107] Fig. 14 shows a design of flange 77 of the site of the dome of the tank under option run 8 of the present invention. An embodiment 8 shown in Fig. 14, and an embodiment 2 shown in Fig. 6A and 6B differ from each other on the flange section 78 and the flange section 32.

[0108] On the outer peripheral side section 34 of the flange section 32 version done is of 2, it is shown in Fig. 6A and 6B, is not provided with a compensating thermal compression section 79. However, on the outer peripheral side section 80 of the flange section 78 options for performing 8 shown in Fig. 14, is provided with a compensating thermal compression section 79. In addition, an embodiment 8 is the same as an embodiment 2 shown in Fig. 6A and 6B. In this regard, the same reference position used for the same components, and their explanations are omitted.

[0109] a Compensating thermal compression section 79 of the outer peripheral side section 80 of the flange section 78 options for performing 8 shown in Fig. 14, is formed so that its cross-section in the radial direction of the flange section 78 has an essentially U-shaped. When compensating thermal compression section 79 has such essentially U-shaped, and even if thermal deformation of the outer peripheral side section 80 of the flange section 78 due to thermal compression dome 3 of the tank, the flange section 78, etc. in such a direction that the outer peripheral side block 80 is pulled inside, compensating thermal compression section 79, having an essentially U-shaped cross-section, can be deformed with the ability to stretch. At the same time, can be suppressed deformation of the outer PE iverilog lateral section 80 of the flange section 78. The outer peripheral side block 80 is made of FRP and serves as the site of the overwhelming heat transfer material.

[0110] Next will be explained with reference to Fig. 15 the design of the flange 83 of the site of the dome of the tank under option run 9 of the present invention. An embodiment 9 shown in Fig. 15, and an embodiment 2 shown in Fig. 6A and 6B differ from each other by the fact that in embodiment 2 shown in Fig. 6A and 6B, the outer peripheral side section 34 of the flange section 32 is made of FRP by molding in one piece; and in embodiment 9 shown in Fig. 15, the outer peripheral section 85 of the outer peripheral side section 34 of the flange section 84 is made of metal, such as aluminum alloy, and the outer peripheral section 85 is bonded and attached by bolts 27 to the main body 86 of the outer peripheral side of the plot, made of FRP. In addition, an embodiment 9 is the same as an embodiment 2 shown in Fig. 6A and 6B. In this regard, the same reference position used for the same components, and their explanations are omitted.

[0111] As shown in Fig. 15, when the outer peripheral section 85 is made of metal, the support pipe (not shown) may be welded to the outer peripheral section 85, as byassee in embodiment 3, it is shown in Fig. 9.

[0112] Fig. 16 shows the construction of flange 89 of the site of the dome of the tank under option run 10 of the present invention. An embodiment 10 shown in Fig. 16, and an embodiment 2 shown in Fig. 6A and 6B differ from each other on the flange section 90 and the flange section 32.

[0113] In the flange section 32 scenarios 2, shown in Fig. 6A and 6B, the outer peripheral edge of the annular area of the inner peripheral side section 33 and the inner peripheral edge section of a ring-shaped outer peripheral side section 34 are connected to each other by a set of bolts passing through them in the vertical direction so as to vertically overlap each other.

[0114] In the flange section 90 options for performing 10 shown in Fig. 16, a short cylindrical joined sections 91 and 92 respectively attached to the outer peripheral edge section of the annular inner peripheral side section 33 and the inner peripheral edge section of the annular outer peripheral side section 34. These two short cylindrical joined section 91 and 92 are connected to each other by a set of bolts passing through them in a horizontal direction in a state where the outer periphery is again connected site 91 and the inner peripheral surface of the joined section 92 overlap. In addition, an embodiment 10 is the same as an embodiment 2 shown in Fig. 6A and 6B. In this regard, the same reference position used for the same components, and their explanations are omitted.

[0115] These two short cylindrical joined section 91 and 92, shown in Fig. 16, are in the direction and to the upper and lower sides of the flange section 90, while the upper parts and lower parts of the joined sections 91 and 92 are connected together by a large number of bolts. The inner peripheral side section 33 and the outer peripheral side section 34 of the flange section 90 is provided between the bolt mounted on the upper sections of the joined sections 91 and 92, and a bolt fixed to the lower parts of the joined sections 91 and 92. In this regard, even if the flange section 90 is deformed by thermal compression dome 3 of the tank, can be secure airtightness of the internal space 5 of the housing 6 of the tank.

[0116] In the above embodiments perform to ensure the air permeance of a connected site, where the metal section of the site and FRP flange section are connected to each other, the metal section of the site and FRP can be connected with each other by molding in one piece or adhesive.

[0117] Although not shown, each is Artie configuration, in which the flange section of each option run-and heat-insulating element 4, made with the ability to cover the flange section provided on the side wall 3a of the dome 3 of the tank, can be changed with the ability to be configured with the symmetry of the upper and lower parts (inverted configuration).

Industrial applicability

[0118] As described above, the design of the flange section of the dome of the tank according to the present invention has an excellent effect that makes it possible to suppress the temperature increase of the low-temperature liquefied gas stored in the area of the main body of the tank. Thus, the present invention is advisable applicable to such construction the flange area of the dome of the tank.

The list of reference positions

[0119] 1 tank for liquefied natural gas

2 plot of the main body of the tank

2a is a plot of body

2b case cover

3 dome tank

3a lateral wall

3b case cover

4 insulation

5 space

6, the shroud tank

8 flange section

11 compensatory rubber plot

12 pipe

21 the design of the flange section dome tank

22 flange section

23 inner peripheral side area

23a base terminal site (bases the first end part)

23b of the connecting section (connecting part)

24 the outer peripheral side of the plot (the plot of the overwhelming heat transfer material, which compensates thermal compression area)

24a is a vertical section

24b horizontal section

25 amplifying section

26, 27, 35, 50, 68, 69 bolt

31 the design of the flange section dome tank

32 flange section

33 inner peripheral side area

34 the outer peripheral side area

38 the design of the flange section dome tank

39 flange section

40 external peripheral area

41 the main body outer peripheral side of the plot (the plot of the overwhelming heat transfer material)

42 the outer peripheral side area

46 the design of the flange section dome tank

47 flange section

48, 49 vertical section

51 compensating thermal compression area

54 design of flange section dome tank

55 flange section

56, 57 horizontal section

61 design of flange section dome tank

62 flange section

63 inner peripheral side area

64 the outer peripheral side area

65 plot of the overwhelming heat transfer material

65a, 65b horizontal section

66, 67 compensating thermal compression is castac

72 design of flange section dome tank

73 flange section

74 plot of the overwhelming heat transfer material

77 design of flange section dome tank

78 flange section

79 compensating thermal compression area

80 outer peripheral side area

83 design of flange section dome tank

84 flange section

85 external peripheral area

86 the main body outer peripheral side of the site

89 the design of the flange section dome tank

90 flange section

91, 92 connected plot

1. The design of the flange section of the dome of the tank, provided on the tank for liquefied gas, and the design of the flange section of the dome of the tank contains:
the flange section protruding outward from the outer surface of the side wall of the dome of the tank, provided on the section of the main body of the tank, made with the possibility of storing low-temperature liquefied gas;
cover the tank with the ability to cover the section of the main body of the tank with a space between them; and
compensatory rubber section, provided between the flange portion and the casing of the reservoir and configured to be sealed space, and
the plot is engaged in heat transfer material, made of plastic, fiber reinforced, provided on at least a predetermined area of the flange section, and the specified area is located between the side wall of the dome of the tank and the wear of the rubber section.

2. The design of the flange section of the dome of the tank under item 1, in which a compensating thermal compression section, configured to compensate for thermal compression stations, including the flange section and the dome of the tank, is provided on at least the area of the flange section located between the side wall of the dome of the tank and the wear of the rubber section.

3. The design of the flange section of the dome of the tank under item 1, in which the plot of the overwhelming heat transfer material formed in the range from a given section of the flange section to the outer peripheral edge of the flange section of the site.

4. The design of the flange section of the dome of the tank under item 2, in which a compensating thermal compression section is formed so that its cross-section in the radial direction of the flange section has a curved shape, comprising essentially L-shaped or substantially U-shaped.

5. The design of the flange section of the dome of the tank under item 2, in which a compensating thermal compression section is formed at the site of the overwhelming those who lapereau of material or area of the overwhelming heat transfer material is formed on the presence of compensating thermal compression area.

6. The design of the flange section of the dome of the tank under item 1, in which the flange section is made so that the connecting part and parcel of the overwhelming heat transfer material formed by molding in one piece, and the connecting part is located on the side of the dome of the tank section of the overwhelming heat transfer material, made of plastic reinforced with fiber.

7. The design of the flange section of the dome of the tank under item 1, in which the plot of the overwhelming heat transfer material and the inner peripheral side flange section of land located on the side of the dome of the tank section of the overwhelming heat transfer material, made of plastic, fiber reinforced, formed so that the inner peripheral side area of the flange section is formed connecting part and the base end part; plot overwhelming heat transfer material and a connecting part formed in one piece; and a connecting part formed in one piece with the plot of the overwhelming heat transfer material, is connected with the base end part connected to the side wall of the dome of the tank.

8. The design of the flange section of the dome of the tank under item 1, in which the inner peripheral side of the flange section of the site is made of metal, moreover, the inner peripheral side of the site is located on the side of the dome of the tank section of the overwhelming heat transfer material, made of plastic reinforced with fiber.

9. The design of the flange section of the dome of the tank under item 1, in which the plot of the overwhelming heat transfer material made of plastic reinforced with fiberglass, or plastic reinforced with carbon fiber.



 

Same patents:

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Bulk vessel // 2077449
The invention relates to the field of shipbuilding, and specifically to the design of the decks of tankers

FIELD: transport.

SUBSTANCE: method of cryogenic gas storage and transportation includes cooling the said gas to liquid state, pouring the liquefied gas into, at least, one tank and keeping up designed temperature and pressure therein by abstracting gassy heat. The tank with cryogenic liquid is separated from ambient medium by means of a refrigerating chamber incorporating, in its walls, a heat-insulator. The said refrigerating chamber space is filled with a neutral gas that does not get condensed at a cryogenic liquid temperature and that is kept at the neutral gas surplus pressure.

EFFECT: simpler design of heat insulation and storing capacities.

FIELD: construction.

SUBSTANCE: vessel includes cargo compartments in the body, where heat-insulated prismatic tanks of liquefied gases are installed, which are made of aerated concrete, and the inner surface of their walls is lined with a sealing thin-walled coating, made of metal that ensures transportation of liquefied gas under cryogenic temperatures. Heat-insulated tanks are made as inbuilt into compartments or as inserts. The aerated concrete contains additives in the form of synthetic or metal fibre. The sealing thin-walled coating of tanks is made of metal, preferably of stainless steel or from nickel-containing, or chrome-containing alloy, or in the form of a thin-walled membrane.

EFFECT: invention provides transportation of low-temperature liquefied natural gases at long distances in case of considerable drops of gas and ambient temperatures.

7 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to production of isolating and sealing wall of reservoir that makes a part of load bearing structure, for example, ship hull. Method of fabricating heat-insulated reservoir for keeping fluid medium, for example, condensed gas, built in ship load bearing structure 50 consists in that prefabricated bar 25, of more or less rectangular shape, is laid over flexible belt 25 that ensures integrity of secondary sealing membrane 30. Fitting said bar in place comprises the following jobs: two parallel glue beads 26, 26' are applied on bottom surface of said bar 25. Note her that said beads are separated by lengthwise central gap 28 without glue. Said bar with 25 glue coat is glued to said belt 35 by pressing it against said belt so that said central gap 38 is filled, at least, partially, with glue to form continuous layer on bar bottom surface. Note here that continuous layer enhance glue joint of belt 35 for perfect tightness of aforesaid primary sealing membrane 30.

EFFECT: higher tightness.

8 cl, 5 dwg

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly to ship cargo compartments for transportation of liquefied natural gas at low temperatures. Proposed heat insulation represents one or several evacuated shells accommodating powder filler. Note here that every said shell ensures heat protection of one or several ship compartment walls.

EFFECT: minimised gas losses.

4 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to shipbuilding and concerns vessels for compressed natural gas transportation. Invention covers vessel having load-carrying structure and sealed, heat-insulated forward tank (53) for compressed natural gas with several bulkheads (54, 55, 56, 57, 58, 59, 60, 61, 62, 63) attached to load-carrying structure. Each bulkhead contains main sealing barrier, main heat-insulating barrier, auxiliary sealing barrier and auxiliary heat-insulating barrier which are located in tandem through-thickness in direction from inner surface of forward tank to its outer surface. The first bulkhead (56) and the second bulkhead (63) among the mentioned tank bulkheads are adjacent to apex (65). The main sealing barrier of the first bulkhead contains at least one first belt (67) connected at apex with load-carrying structure by pillar. The main sealing barrier of the second bulkhead contains at least one second belt (64) connected at the mentioned apex (69) with load-carrying structure by the mentioned pillar.

EFFECT: simplification of compressed natural gas tank design, higher vessel capacity.

10 cl, 8 dwg

FIELD: transport.

SUBSTANCE: invention relates to shipbuilding and concerns vessels or floating platforms intended for liquid transportation and storing, specifically cryogenic transportation of compressed natural gas or other gases in liquefied state. The invention claims vessel or floating platform (1) for transportation and storing of liquid (3) representing compressed gas, preferably methane, ethylene, propan or butane, cooled in at least one large tank (2), preferably cylindrical with polygonal cross-section, fitted with heat insulation (2a) and having large dimensions, herewith, at least its minimum size in horizontal plane, specifically its width, exceeds 20 m, and preferably is 25 to 50 m, and volume exceeds 10000 m3, herewith, the mentioned large tank (2) is installed inside vessel hull (4) on load carrying structure (11). Vessel or floating platform contains multiple devices for detection of liquid disturbance inside the mentioned large tank (the mentioned large tanks). Such devices are called "beacon lights" (5, 5-1, 5-2) and contain: a) vibration sensor representing vibration accelerometer, b) electronic computing module, containing microprocessor and built-in memory and made capable to process a signal measured by the mentioned vibration sensor (5a) in order to at least remove vessel own background noise, c) means for signal transmission after its processing by the mentioned electronic computing module to central module or controller (6) preferably installed on bridge.

EFFECT: higher safety of liquid transportation and storing on vessel or floating platform.

15 cl, 13 dwg

FIELD: transport.

SUBSTANCE: invention relates to transport shipbuilding, means for marine freight and storage of liquefied natural gas (LNG) and concerns design of membrane cargo capacity for its transportation and storage. Reservoir for transportation and storage of LNG includes structured thermally insulated shell mounted on carrying structure of freight vessel or capacity. The shell consists of several layers. In this structure, one layer is metal and sealed and contacts with liquefied gas being transferred or stored. The layer contains undulating corrugations. Wave tops and troughs form zigzags. Undulating indents between corrugations on the outside are filled with porous synthetic material or paste based on chopped glass fibre and binding agent.

EFFECT: higher strength and reliability of membrane cargo capacity for liquefied natural gas transportation and storage, lower probability of sealing failure.

3 cl, 10 dwg

FIELD: transport.

SUBSTANCE: heat-insulating sealed wall of reservoir for compressed natural gas consists of blocks fixed on vessel hull using mechanical fixture which blocks include primary and secondary heat-insulating panels, primary sealing layer fixed on the blocks and secondary sealing layer located between them. The blocks are interconnected using bands of sealing layers, as well as heat-insulating materials placed in gaps between blocks. Wall blocks have forming coverage from all sides made of polymeric composite materials creating enclosed volume simultaneously surrounding primary and secondary heat-insulating panels. The blocks include primary sealing layer which is made of flexible material and attached directly to panels by means of sticking primary heat-insulating panel on the outside of forming coverage with partial transition to secondary heat-insulating panel forming coverage. In this structure, gaps between block panels are closed by bands of corresponding sealing layer which bands are attached to panels by sticking on portions of primary sealing layer at panel edges.

EFFECT: lowering labour consumption during manufacturing and assembling reservoir in vessel hull, lowering reservoir mass while increasing design reliability and its heat-insulating properties.

7 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: design (21) of flanged part of the tank dome includes: flanged part projecting outside from the external surface of side wall of the tank dome ensured at section of the main tank body, made with possibility to store LT liquefied gas; tank casing (6) with possibility to cover section of the main tank body with space (5) between them; and compensation rubber section (11) ensured between the flanged part (22) and casing (6) of the tank, and made with possibility to tight the space (5), at that section of the heat transfer suppressing material, i.e. fibre reinforced plastic, is ensured on at least specified section of the flanged part (22), at that specified section is located between the side wall (3a) of the tank dome (3) and compensation rubber section (11).

EFFECT: temperature decreasing of LT liquefied gas stored in the tank upon ambient temperature rise due to the heat-insulating materials.

9 cl, 19 dwg

FIELD: heating.

SUBSTANCE: invention relates to creation of blocks of a heat insulation tight wall from polymer composite materials (PCM) of new type reservoirs for transportation of liquid goods and liquefied gases. A block is manufactured in a single process stage using forming method of closed type. The block has a single shape from PCM, having required properties in the range of temperatures -163 +50C. Forming is carried out by one-time impregnation of layers of dry reinforcing material by a polymer binder, creating a single bearing layer, covering at all sides the heat insulation panels, which provides for solidity of entire structure of the block and increases its strength and reliability.

EFFECT: reduced duration of a block manufacturing cycle, reduced labour intensiveness of their manufacturing.

5 dwg

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