Collector of injection or collector of drainage for air of heat- exchange block of heat-exchange apparatus

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

 

The invention relates to a power system, namely the collector design of devices for waste heat recovery from gas units, in particular for heating air exhaust products of combustion coming from the compressor of a gas turbine compressor units at compressor stations of main gas pipelines.

Known collector heat exchanger containing inlet and outlet, the plate pack, the end of which, together with lids form a reservoir (EN, No. 2137076, 1999).

A well-known collector supply - air outlet of the regenerative air heater, in which General welded tube sheet (EN, No. 17600, 2001, RU # 2176051, 2001).

Closest to the claimed technical solution is the collector inlet or air outlet of the regenerative air heater (EN, No. 31838, 2003), containing a shell in the form of a circular cylinder, the opening of which is welded tube sheet.

The design known technical solutions do not have a high adaptability, help reduce labor and materialsafety in the manufacture of the device while ensuring high durability and reliability of a header.

The problem is solved due to the fact that according to the invention the inlet manifold or manifold exhaust air heat exchange unit, the heat is on apparatus of the type regenerative air heater is made in the form of a cylindrical shell with an aperture, in which welded tube plate, and a projection on the end face of the tube plate curved section of the shell, forming the end face of the opening, is located within the thickness of the tube plate, the connection of the shell and tube Board in the plane of the cross-section of the shell is made in the angular range γ=28-75°and the ratio of the area of projection onto a specified plane curvilinear section of the shell, forming the end face of the opening to the area of the projection on the plane of the corresponding end face of the tube plate is 0,048÷0,172.

The side edges of the tube plate can be made triangular, with one side made with education in cross-section in contact with the sides of the support section and the adjacent faces can be made - one adjacent to the surface of the tube plate, facing the inlet manifold or exhaust air with the bevel forming with the plane of the reference corner plot α=(22-29)°and the other addressed to the external surface of the tube plate, the face can be performed with the bevel forming with the plane of the reference corner plot β=(25-35)°.

Triangular edge of the tube plate can be performed with the width of the support section comprising at least 4.5% of the total thickness of the pipe forming Board wafer. Face with bevel α=(22-29)° can be made wide, costal is ment 5.9 to 12.5% of total thickness of the plate, and the face with the bevel β=(25-35)° executed width, component 79-89,6% of the total thickness of the plate.

Tube sheet is made with through holes at the ends of heat exchange tubes of the heat exchange unit, which can be arranged in rows along the height of the workpiece in increments of axes in a row, the components of (1,5-2,8)·d, step series on the height of the workpiece, comprising (0,60-0,84)·d, where d is the outer diameter of the tubes, and with offset holes in adjacent rows (0,4÷0,6) step value in the row.

The total area of the through holes in the tube plate at the ends of heat exchange tubes of the heat exchange unit may be 56-85% of the overall square pipe field in the plane of the tube plate, bounded by the contour formed by the set of conditional direct tangent to the outer edges of the outermost holes in the tube plate, and the area of the pipe margin is 0.75-0,94 of the total area of the frontal projection of the tube plate.

Technical result provided by the invention is the reduction of the weight of the structure, ensuring its high adaptability, help reduce labor costs in manufacturing, it provides high durability collector and reliability by increasing the rigidity of the structure.

The invention is illustrated by drawings, which depict:

figure 1 - manifold is odvod or exhaust air regenerative air heater, the main view;

figure 2 - section a-a in figure 1;

figure 3 - node B in figure 2;

figure 4 - node In figure 3.

The inlet manifold or manifold exhaust air 1 heat exchanger unit heat exchanger of the regenerative type air heater is made in the form of a cylindrical shell 2 with the opening, in which welded tube plate 3, and a projection on the end face of the tube plate 3 curved section of the shell, forming the end face of the opening, is located within the thickness of the tube plate 3, the connection of the shell 2 with the tube Board 3 in the plane of the cross-section of the shell 2 is made in the angular range γ=28-75°and the ratio of the area of projection onto a specified plane curvilinear section of the shell, forming the end face of the opening to the area of the projection on this plane of the corresponding end face of the tube plate is 0,048÷0,172.

The side edges of the tube plate 3 can be made triangular. When one faces 4 can be made with education in cross-section in contact with the sides of the support section and the adjacent faces can be made - one 5 adjacent to the surface of the tube plate 3, facing the inlet manifold or exhaust air 1, with the bevel forming with the plane of the reference corner plot α=(22-29)°and the other 6 facing the outer surface of the tube plate 3, a distinction can be made with bevel forming with the plane of the reference corner plot β=(25-35)°.

Triangular edge of the tube plate 3 can be performed with the width of the support section comprising at least 4.5% of the total thickness of the forming tube Board 3 plates. Face 5 with the bevel α=(22-29)° can be made wide, part of 5.9 to 12.5% of total thickness of the plate. The line 6 with the bevel β=(25-35)° can be made wide, component 79-89,6% of the total thickness of the plate.

Tube sheet 3 can be made with through-holes 7 at the ends of heat exchange tubes of the heat exchange unit. Holes 7 can be arranged in rows along the height of the workpiece in increments of axes in a row, the components of (1,5-2,8)·d, step series on the height of the workpiece, comprising (0,60-0,84)·d, where d is the outer diameter of the tubes, and with offset holes in adjacent rows (0,4÷0,6) step value in the row.

The total area of the through holes 7 in the tube plate 3 at the ends of heat exchange tubes of the heat exchange unit may be 56-85% of the overall square pipe field in the plane of the tube plate 3, limited by the circuit formed by the set of conditional direct tangent to the outer edges of the outermost holes in the tube plate 3, and the square pipe field can be 0,75-0,94 of the total area of the frontal projection of the tube plate.

The device is sudestada as follows.

The air used to fire the gas turbine, enters the compressor, which is compressed, and then by pipeline supply through the collector supply of the heated medium pipe and the Board is served in the tubes of the heat exchange units of each section. The combustion products from the turbine GTU get inside the unit sections and wash the tubes with heated air. Passing through the heat exchange pipe units, air is heated by the combustion products to a temperature of 440-450°and through the tube Board enters the collector outlet of the heated medium from which the pipeline is input to the furnace GTU.

The present invention ensures high durability collector and rigidity due to the reduction of the deformations that occur during operation of the regenerative air heater under the influence of the two heat flows - heated medium flowing through the manifold and tube grille, and the cooling medium flowing round shell and tube grid.

1. The inlet manifold or manifold exhaust air heat exchanger unit heat exchanger of the regenerative type air heater, characterized in that it is made in the form of a cylindrical shell with an aperture, in which welded tube plate, and a projection on the end face of the tube plate trivoli anago section of the shell, forming the end face of the opening, is located within the thickness of the tube plate, the connection of the shell and tube Board in the plane of the cross-section of the shell is made in the angular range γ=28-75°and the ratio of the area of projection onto a specified plane curvilinear section of the shell, forming the end face of the opening to the area of the projection on the plane of the corresponding end face of the tube plate is 0,048-0,172.

2. Collector according to claim 1, characterized in that the side edges of the tube plate is made triangular, with one side made with education in cross-section in contact with the sides of the support section and the adjacent faces made one adjacent to the surface of the tube plate, facing the inlet manifold or exhaust air with the bevel forming with the plane of the reference corner plot α=22-29°and the other addressed to the external surface of the tube plate face is made with a bevel forming with the plane of the reference corner plot β=25-35°.

3. Collector according to claim 2, characterized in that the triangular edge of the tube plate is made with a wide reference area comprising not less than 4.5% of the total thickness of the pipe forming Board wafer, the edge with bevel α=22-29° made wide, part of 5.9 to 12.5% of total thickness of the plate, and the edge with bevel β=25-35° made wide, with the bringing 79-89,6% of the total thickness of the plate.

4. Collector according to claim 1, characterized in that the tube sheet is made with through holes at the ends of heat exchange tubes of a heat exchanger unit, and the holes are arranged in rows along the height of the workpiece in increments of axes in a row, the components of (1,5-2,8)·d, step series on the height of the workpiece, comprising (0,60-0,84)·d, where d is the outer diameter of the tubes, and with offset holes in adjacent rows 0,4-0,6 step value in the row.

5. Collector according to claim 4, characterized in that the total area of the through holes in the tube plate at the ends of heat exchanger tubes heat exchanger unit is 56-85% of the overall square pipe field in the plane of the tube plate, bounded by the contour formed by the set of conditional direct tangent to the outer edges at the holes in the tube plate, and the area of the pipe margin is 0.75-0,94 of the total area of the frontal projection of the tube plate.



 

Same patents:

FIELD: heat exchange apparatus; chemical industry and power engineering.

SUBSTANCE: proposed manifold has body with distributor secured on it. Secured to non-magnetic body are magnetic coils; distributor consists of movable and rigidly secured screens made from magnetic material with porous medium placed in between them. Porous medium may be made from foamed plastic and at least 5 rows of elastic balls whose diameter exceeds pitch of screen; it may include at least four layers of ferrite particles at effective diameter equal to diameter of elastic balls.

EFFECT: possibility of performing control of flows in wide temperature range.

4 cl, 9 dwg

FIELD: heat power engineering.

SUBSTANCE: the inventions are intended for heating water and-or steam and may be used in heat power engineering. The boiler plant contains a cylindrical boiler having one course of gases and an internal cylindrical shielded furnace chamber, an air heater, controlled circuits of heating of a heat carrier and fuels, one and more rows of heat exchange pipes, a ring-shaped cylindrical sectional header and a contact economizer. The finned heat exchange pipes are made U-shaped or coiled and form in the end part of the furnace chamber a radiation-convective beam. At that the gas-tightness of the furnace chamber may be ensured either by heat exchange diaphragms connecting the heat exchange pipes or by a heat exchange cylindrical surface. The heat exchange diaphragms, as well as the heat exchange cylindrical surface, which is sealing the furnace chamber and the convective part of the boiler, are spread to the frontal collector. On the collector there are outlet branch-pipes for withdrawal of the heat carrier, from which it is simultaneously possible to take the heat-carrier of several parameters. The boiler plant is countercurrent in respect to a temperature pressure of the furnace chamber and has one and more supporting devices. The back butt of the furnace chamber serves a part of a heating surface of the air-heater together with a branch-pipe of the outlet of the combustion products. The boiler and its heat-exchange pipes are made with in an series heating of the heat-carrier at the speed of its movement in the heat-exchange pipes of 2.15 m\s. The ring-shaped finned boiler header has sections, which are formed by partitions both blank and perforated, one and more frontal covers, one and more pipe plates, on which the heat-exchange pipes of the boiler are fixed. A part of the partitions is made flat and a part of the partitions is made as a ring or a part of a ring. The external finned frontal side of a collector is a part of the heating surface of the air heater. Inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

EFFECT: the inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

20 cl, 27 dwg

FIELD: heat-power engineering; power engineering; chemical and oil industries.

SUBSTANCE: proposed chamber is provided with rods having section in form of rectangle; rods are mounted over entire perimeter of tube bank in parallel with tubes; vertices of adjacent faces directed towards each other form diffuser and contraction passages. Vertices of faces of adjacent rods directed towards each other may be rounded-off.

EFFECT: reduced hydraulic resistance and enhanced reliability.

2 cl, 3 dwg

FIELD: heat-power engineering; heat exchangers with mixing of heat-transfer agent flows at different temperatures.

SUBSTANCE: circular partition is provided with circular V-shaped box smoothly perforated over perimeter and located above holes of heat-transfer agent inlet branch pipes; vertex of V-shaped box is rigidly connected with circular partition and end faces of box are tightly connected with inner surface of body and outer surface of casing.

EFFECT: reduced hydraulic resistance at simultaneous reduction of usage of metal.

5 cl, 4 dwg

FIELD: heat-exchange apparatus; liquid-to-liquid heat exchangers.

SUBSTANCE: collector chamber of shell-and-tube heat exchanger adjoining the tube sheet of tube bank includes partitions dividing it into supply and discharge compartments; they have U-shaped profile with strip located between its runs; it is made from elastic material; one end of strip is secured on tube sheet and second end is bent at 180 deg. on side of supply compartment.

EFFECT: enhanced operational reliability.

Regenerative cooler // 2142608
The invention relates to refrigeration, and more particularly to regenerative coolers, and in the particular case of the coolers used in such systems in which the refrigerant is air, and the cooled medium - oil

The invention relates to a power system and can be used in steam generators

FIELD: heat-exchange apparatus; liquid-to-liquid heat exchangers.

SUBSTANCE: collector chamber of shell-and-tube heat exchanger adjoining the tube sheet of tube bank includes partitions dividing it into supply and discharge compartments; they have U-shaped profile with strip located between its runs; it is made from elastic material; one end of strip is secured on tube sheet and second end is bent at 180 deg. on side of supply compartment.

EFFECT: enhanced operational reliability.

FIELD: heat-power engineering; heat exchangers with mixing of heat-transfer agent flows at different temperatures.

SUBSTANCE: circular partition is provided with circular V-shaped box smoothly perforated over perimeter and located above holes of heat-transfer agent inlet branch pipes; vertex of V-shaped box is rigidly connected with circular partition and end faces of box are tightly connected with inner surface of body and outer surface of casing.

EFFECT: reduced hydraulic resistance at simultaneous reduction of usage of metal.

5 cl, 4 dwg

FIELD: heat-power engineering; power engineering; chemical and oil industries.

SUBSTANCE: proposed chamber is provided with rods having section in form of rectangle; rods are mounted over entire perimeter of tube bank in parallel with tubes; vertices of adjacent faces directed towards each other form diffuser and contraction passages. Vertices of faces of adjacent rods directed towards each other may be rounded-off.

EFFECT: reduced hydraulic resistance and enhanced reliability.

2 cl, 3 dwg

FIELD: heat power engineering.

SUBSTANCE: the inventions are intended for heating water and-or steam and may be used in heat power engineering. The boiler plant contains a cylindrical boiler having one course of gases and an internal cylindrical shielded furnace chamber, an air heater, controlled circuits of heating of a heat carrier and fuels, one and more rows of heat exchange pipes, a ring-shaped cylindrical sectional header and a contact economizer. The finned heat exchange pipes are made U-shaped or coiled and form in the end part of the furnace chamber a radiation-convective beam. At that the gas-tightness of the furnace chamber may be ensured either by heat exchange diaphragms connecting the heat exchange pipes or by a heat exchange cylindrical surface. The heat exchange diaphragms, as well as the heat exchange cylindrical surface, which is sealing the furnace chamber and the convective part of the boiler, are spread to the frontal collector. On the collector there are outlet branch-pipes for withdrawal of the heat carrier, from which it is simultaneously possible to take the heat-carrier of several parameters. The boiler plant is countercurrent in respect to a temperature pressure of the furnace chamber and has one and more supporting devices. The back butt of the furnace chamber serves a part of a heating surface of the air-heater together with a branch-pipe of the outlet of the combustion products. The boiler and its heat-exchange pipes are made with in an series heating of the heat-carrier at the speed of its movement in the heat-exchange pipes of 2.15 m\s. The ring-shaped finned boiler header has sections, which are formed by partitions both blank and perforated, one and more frontal covers, one and more pipe plates, on which the heat-exchange pipes of the boiler are fixed. A part of the partitions is made flat and a part of the partitions is made as a ring or a part of a ring. The external finned frontal side of a collector is a part of the heating surface of the air heater. Inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

EFFECT: the inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.

20 cl, 27 dwg

FIELD: heat exchange apparatus; chemical industry and power engineering.

SUBSTANCE: proposed manifold has body with distributor secured on it. Secured to non-magnetic body are magnetic coils; distributor consists of movable and rigidly secured screens made from magnetic material with porous medium placed in between them. Porous medium may be made from foamed plastic and at least 5 rows of elastic balls whose diameter exceeds pitch of screen; it may include at least four layers of ferrite particles at effective diameter equal to diameter of elastic balls.

EFFECT: possibility of performing control of flows in wide temperature range.

4 cl, 9 dwg

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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