Tube wall of gas inlet or gas outlet chamber of heat exchange section of apparatus for air cooling of gas

FIELD: heat and power engineering, namely tube walls of inlet or outlet chambers of apparatus for air cooling of gas or section of such apparatus.

SUBSTANCE: tube plate of chamber of gas inlet or gas outlet of heat exchange section of apparatus for air cooling of gas includes plate in the form of parallelepiped, mainly right-angled one. Said plate includes system of through openings for ends of heat exchange tubes of tube bundle. Said openings are arranged by rows along height of wall at pitch of their axes in row being in range (1.7 - 3.4) d; at pitch of rows along height of wall being in range (1.6 - 3.4)d where d - diameter of openings. Said openings are shifted in adjacent rows by value 0.35 -0.65 of pitch in row. Projection of surface area of wall carcass onto mean plane of tube wall exceeds by 4 - 12.5 times projection of total surface area of voids of wall on the same plane. Portion of continuous cross section is arranged along perimeter of tube wall for forming rigidity band of tube wall. Surface area of rigidity band consists 16.0 - 45.0% of tube wall surface area.

EFFECT: enhanced strength, lowered metal consumption of construction due to optimal parameters of tube wall.

10 cl, 3 dwg

 

The invention relates to the field of engineering, namely to pipe the boards of the chambers of the inlet or gas outlet of the air cooling unit (ACU) gas or section.

Known pipe Board camera input or output gas heat transfer section AVO gas (see Fundamentals of calculation and design of heat exchanger for air cooling. edit Webcounter, Anelssono, St. Petersburg: Nedra, -1996, p.40-44)made in the form of a plate having the shape of a parallelepiped, mostly rectangular, with the generatrix of the pipe grid system through holes at the ends of heat exchange tubes of the air cooler.

Camera input or output gas AVO gas is a vessel operating under pressure. In this regard, the chamber and its members, including to the tube plate, which is part of the camera, high demands associated with structural strength. In addition, the tube sheet is used for placing and fixing of the heat exchange tube section of the air cooler gas with optimal step to ensure effective operation of the heat exchange section.

The present invention is to reduce the metal consumption while increasing reliability and rigidity due to the optimization of the parameters of the tube plate.

The problem is solved due to the fact that the tube Board camera input or you the ode gas heat exchange section air cooler gas, according to the invention, made in the form of a plate having the shape of a parallelepiped, mostly rectangular, with the generatrix of the pipe grid system through holes at the ends of heat exchange tubes of the beam, and the holes are arranged in rows along the height of the Board in increments of axes in a row components (1,7-3,5)d, step series height boards, components (1,6-3,4) d, where d is the hole diameter, and offset holes in adjacent rows 0,35-0,65 step value in the row, the area of the frame grid in the projection to the middle plane Board 4-12,5 times greater than the total area of the voids of the lattice in the projection on the same plane, and the perimeter of the tube plate is a plot of solid section, which forms the belt rigidity of the tube plate, which covers an area of 16.0-45.0% in the area of the tube plate.

The minimum thickness of the frame grid tube plate between the holes of a number not less than 1.5 times may exceed the diameter of the hole.

Holes can be placed in rows in the amount of from two to eighteen rows the height of the tube plate.

The number of holes in each row may vary from 12 to 125. The number of holes in each even-numbered row, counting from the bottom, can be made even, and every odd number is odd.

The number of holes in each even-numbered row, counting from the bottom can be taken to be odd, and every odd, the m row even.

The number of rows of holes can be made even. The number of rows of holes can be taken to be odd. Holes can be made with a diameter of from 12 to 45 mm tube sheet can be performed with parameters L, N and δ, where L is the length of the tube plate, taken in the interval from 1.5 to 3,01 m, H - the height of the tube plate, taken in the interval from 0.25 to 0.98 m δ - thickness of the tube plate, taken in the range between 0.015 to 0.075 m

The technical result provided by the present set of essential features, is to increase the strength of the tube, reducing the metal due to the optimal location of the system through holes for fastening them to the ends of the pipe bundle heat exchanger section AVO gas, as well as providing a dense packing of pipes beam without reducing the effectiveness of heat exchange while creating optimal annulus for effective heat removal. The achieved reliability of the apparatus as a whole by providing rigidity and structural strength of the pipe boards.

The invention is illustrated by drawings, which shows:

figure 1 is a side view of the tube plate camera input or output gas heat transfer section AVO gas;

figure 2 - tube sheet, section a-a figure 1;

figure 3 is a fragment of the tube plate with fastened in her Teploobmen the Noah pipe.

Pipe Board camera input or output gas heat exchanger section of the air cooler is made in the form of a plate 1, having the form of a parallelepiped, mostly rectangular, with the generatrix of the pipe grid 2 system through-hole 3 at the ends 4 of the heat transfer tubes 5 of the bundle. Holes 3 are arranged in rows of 6 in height boards with step s axes in a row components (1,7-3,5) d, step h series height boards, components (1,6-3,4) d, where d is the hole diameter, and offset holes in adjacent rows 0,35-0,65 step value in the row. The space frame grid in the projection to the middle plane Board 4-12,5 times greater than the total area of the voids of the lattice in the projection on the same plane. Around the perimeter of the tube plate 7 is a plot of solid section, which forms the belt rigidity of the tube plate, which covers an area of 16.0-45.0% in the area of the tube plate.

The minimum thickness of the n frame grid tube plate between the holes 3 a number of not less than 1.5 times the diameter of the hole.

Holes 3 posted by rows of 6 in number from two to eighteen rows the height of the tube plate.

Number of holes 3 in each row 6 is from 12 to 125.

Number of holes 3 in each even-numbered row 6, counting from the bottom, made even, and every odd number is odd.

Number of holes 3 in each even-numbered row 6, counting from the bottom, made of wick is Tim, and every odd number is even.

The number of rows of 6 holes 3 made even or odd.

Hole 3 is made with a diameter of from 12 to 45 mm

Tube sheet is made with parameters L, N and δ, where L is the length of the tube plate, taken in the interval from 1.5 to 3,01 m, H - the height of the tube plate, taken in the interval from 0.25 to 0.98 m δ - thickness of the tube plate, taken in the range between 0.015 to 0.075 m

Pipe Board camera input or output gas heat exchanger section of the air cooler is used for fixing through its holes in the ends of heat exchange tubes while ensuring spatial rigidity of the heat exchange section of the air cooler.

Tube sheet by optimizing the parameters of the tube will increase thermal efficiency of the tube-bundle heat exchanger section of the air cooler with a minimum of metal construction and high strength.

1. Pipe Board camera input or output gas heat exchange section air cooler gas, characterized in that it is made in the form of a plate having the shape of a parallelepiped, mostly rectangular, with the generatrix of the pipe grid system through holes at the ends of heat exchange tubes of the beam, and the holes are arranged in rows along the height of the Board in increments of axes in a row components (1,7-3,5) d, step series on the height of the Board, SOS is Allaudin (1,6-3,4) d, where d is the hole diameter, and offset holes in adjacent rows 0,35-0,65 step value in the row, the area of the frame grid in the projection to the middle plane Board 4-12,5 times greater than the total area of the voids of the lattice in the projection on the same plane, and the perimeter of the tube plate is a plot of solid section, which forms the belt rigidity of the tube plate, which covers an area of 16.0-45,0 % of the area of the tube plate.

2. Tube sheet according to claim 1, characterized in that the minimum thickness of the frame grid tube plate between the holes of a number not less than 1.5 times the diameter of the hole.

3. Tube sheet according to any one of claims 1 and 2, characterized in that the openings are placed in rows in the amount of from two to eighteen rows the height of the tube plate.

4. Tube sheet according to claim 1, characterized in that the number of holes in each row varies from 12 to 125.

5. Tube sheet according to claim 1, characterized in that the number of holes in each even-numbered row, counting from the bottom, made even, and every odd number is odd.

6. Tube sheet according to claim 1, characterized in that the number of holes in each even-numbered row, counting from the bottom, made odd, and every odd number is even.

7. Tube sheet according to claim 1, characterized in that the number of rows of holes made even.

8. Tube sheet according to claim 1, characterized in that the number of the poisons holes made odd.

9. Tube sheet according to claim 1, characterized in that the holes are made with a diameter of from 12 to 45 mm

10. Tube sheet according to claim 1, characterized in that it is made with parameters L, N and δ, where L is the length of the tube plate, taken in the interval from 1.5 to 3,01 m, H - the height of the tube plate, taken in the interval from 0.25 to 0.98 m δ -thickness of the tube plate, taken in the range between 0.015 to 0.075 m



 

Same patents:

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3 dwg, 13 cl

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FIELD: power engineering, in particular, engineering of collectors for devices for utilization of gases exhausted by apparatuses primarily used for heating air by combustion products, coming from compressor of gas-turbine plant of gas flow apparatus at compressor stations of main gas pipelines.

SUBSTANCE: air injection or drainage collector of heat exchange block of heat-exchange apparatus like regenerative air heater is made in form of cylindrical ring with opening, in which additional pipe board is welded, while projection on end of pipe board of curvilinear portion of ring, forming an end of opening, is positioned within limits of thickness of pipe board, connection of ring to pipe board in plane of ring cross-section is made within angular range γ=28°-75°, and relation of projection area on aforementioned plane of curvilinear ring portion, forming an end of opening, to projection area on this plane of appropriate end of pipe board, is 0,048-0,172.

EFFECT: decreased mass of construction, high manufacturability of same, possibly lower laboriousness of manufacture, high durability of injection and drainage collector and reliability of its operation due to higher rigidity of construction.

5 cl, 4 dwg

FIELD: power engineering, in particular, heat exchange devices, primarily, air-based gas cooling apparatuses.

SUBSTANCE: device is made in form of reservoir working under pressure, including cylindrical body with end portions of two-side curvature, central branch pipe for connection to gas main and branch pipes for connecting to chambers for inlet or outlet of gas of heat-exchange sections of air gas cooling apparatus, while cylindrical body is made of technological sections, central one of which is made primarily in form of unified technological element with central branch pipe, and branch pipes for connection to chambers for inlet and outlet of gas of heat exchange sections of air gas cooling apparatus are mainly symmetrically positioned on both sides from central technological section and number of these branch pipes on each side ranges from 2 to 8, while the area of cross-section in light of central branch pipe is 0,7-1,0 of area of cross-section in light of cylindrical portion of body of collector fro injection or drainage of gas, and total area of cross section in light of branch pipes for connection to chamber for inlet or outlet of gas of each heat-exchange section of air-based gas cooling apparatus is 0,37-0,62 of area of cross-section in light of cylindrical portion of body of collector for injection or drainage of gas.

EFFECT: decreased metal cost of gas injection or drainage collector and higher manufacturability of its construction, and also decreased hydraulic losses in collector for injection or drainage of gas.

3 dwg, 7 cl

FIELD: power engineering, particularly gas cooling plant components.

SUBSTANCE: gas inlet or outlet chamber is made as a high-pressure tank and comprises side, upper, lower and end walls. Gas inlet or outlet chamber also comprises not less than two load-bearing partitions arranged between side walls and provided with through orifices. One chamber wall is made as tube plate with orifices defining grid structure and adapted to receive heat-exchanging tube ends. One chamber wall has orifices to receive pies to connect thereof with gas inlet or outlet manifold, which supplies gas to or discharges gas from the chamber. Orifices for connection pipe receiving, load-bearing partition orifices and tube plate orifices define communication system to connect gas air cooling plant with gas pipeline. The communication system has several stages with orifices formed so that orifice number at each stage successively changes in gas flow direction. For gas inlet chamber above number increases, for gas outlet chamber the number decreases.

EFFECT: possibility to equalize velocity field, reduced hydraulic hammer, which results in reduced power losses in pipeline conveying gas to be cooled and in increased thermal performance of air cooling plant as a whole or air cooling plant section, increased economy of plant production and operation.

3 dwg, 13 cl

FIELD: engineering of collectors for injection or drainage of gas for apparatuses for air-based gas cooling.

SUBSTANCE: device has bearing frame, on which not less than three cradle supports are mounted for supporting body of collector for injection or drainage of gas and for abutment of branch pipe connected thereto for connection to gas main, and no less than four portal supports for temporary technological holding by plane, rotation angle and position along collector for injection or drainage of gas of branch pipes with flanges for connection to chambers for inlet or outlet of gas of heat-exchange sections of air-based gas cooling apparatus adequately to position of contact surfaces of response flanges and mounting apertures in them in chamber for inlet or outlet of gas. At least two cradle supports are positioned with possible abutment of body of collector for injection or drainage of gas against them in accordance to suspension scheme, each one primarily between additional pair of portal supports, mounted below outmost and adjacent flanges of branch pipes for connection to chambers for inlet or outlet of gas. Each portal support is made with detachable beam, which is provided with device for temporary holding by plane and rotation angle of flange of appropriate branch pipe and for connection of it to body of collector for injection or drainage of gas in planned position.

EFFECT: simplified construction of building berth while providing for high precision of manufacturing of collector for drainage or injection of gas.

4 cl, 4 dwg

FIELD: heat and power engineering, namely tube walls of inlet or outlet chambers of apparatus for air cooling of gas or section of such apparatus.

SUBSTANCE: tube plate of chamber of gas inlet or gas outlet of heat exchange section of apparatus for air cooling of gas includes plate in the form of parallelepiped, mainly right-angled one. Said plate includes system of through openings for ends of heat exchange tubes of tube bundle. Said openings are arranged by rows along height of wall at pitch of their axes in row being in range (1.7 - 3.4) d; at pitch of rows along height of wall being in range (1.6 - 3.4)d where d - diameter of openings. Said openings are shifted in adjacent rows by value 0.35 -0.65 of pitch in row. Projection of surface area of wall carcass onto mean plane of tube wall exceeds by 4 - 12.5 times projection of total surface area of voids of wall on the same plane. Portion of continuous cross section is arranged along perimeter of tube wall for forming rigidity band of tube wall. Surface area of rigidity band consists 16.0 - 45.0% of tube wall surface area.

EFFECT: enhanced strength, lowered metal consumption of construction due to optimal parameters of tube wall.

10 cl, 3 dwg

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