CN212378563U - Corrugated plate gas-gas heat exchanger - Google Patents
Corrugated plate gas-gas heat exchanger Download PDFInfo
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- CN212378563U CN212378563U CN201922149440.4U CN201922149440U CN212378563U CN 212378563 U CN212378563 U CN 212378563U CN 201922149440 U CN201922149440 U CN 201922149440U CN 212378563 U CN212378563 U CN 212378563U
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Abstract
A corrugated plate gas-gas heat exchanger comprises a box body, a heat exchange plate bundle and a gas inlet and outlet header, wherein the heat exchange plate bundle comprises plate tubes, and the plate tubes are formed by inserting support fins between two buckled corrugated plates and fixedly connecting the two buckled corrugated plates to form an independent pressure-bearing structure as a flow channel of a medium A; the plurality of plate tubes are fixedly connected in a stacking mode through sealing strips on two sides of the plate tubes to form a heat exchange plate bundle, and rectangular channels between the plate tubes formed through the sealing strips are used as flow channels of a medium B; the heat exchange plate bundle is installed in a box body, the top and the bottom of the box body are fixedly connected with a medium B inlet header and a medium B outlet header, and two sides of the box body are fixedly connected with a medium A inlet header and a medium A outlet header respectively to form a corrugated plate gas-gas heat exchanger. The utility model bears the medium pressure difference through the plate pipe self-pressure-bearing structure; the channel has no shielding in the flow of a non-contact structure, the pressure drop loss is small, and dust is not easy to accumulate; the gas-gas heat exchanger has the advantages of compact structure, high heat transfer efficiency, pressure reduction, blockage resistance, high temperature resistance and wide application range.
Description
Technical Field
The invention belongs to the field of heat exchangers, and particularly relates to a corrugated plate gas-gas heat exchanger which can be applied to the fields of petroleum, chemical industry, electric power and chemical fertilizer.
Background
The plate type gas-gas heat exchanger has the characteristics of compact structure, high heat transfer efficiency, small occupied area and the like, and becomes the development direction of the current gas-gas heat exchanger technology, and the heat transfer elements used at present are corrugated plate sheets and flat plate sheets.
The low pressure non-clean gas passageway and the clean gas passageway of high pressure that traditional ripple slab only relied on the mutual support of both sides ripple to form, and the buckled plate piece receives the restriction of embossing mold utensil, and both sides passageway height can not be adjusted, and unable better matching both sides medium is heat-transferred and the pressure drop requirement, and the restriction low pressure non-clean gas passageway that receives slab ripple structure simultaneously has the multiconductor, and the passageway easily produces deposition blocking phenomenon.
The flat plate sheet is for keeping the channel shape, and both sides passageway all need adopt supporting component to support, controls both sides medium passageway interval through adjusting support piece height, reaches the requirement that the medium pressure drop matches, for guaranteeing good bearing capacity, must increase support piece's quantity and arrange density to it is too much to lead to the non-clean gas channel contact of low pressure, blocks up the risk increase, and dull and stereotyped heat transfer performance is less than the buckled plate simultaneously, and equipment occupation of land volume is far greater than the buckled plate equipment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to current gas heat exchanger pressure drop big, easy deposition, running cost height, shortcoming such as manufacturing cycle length, propose a compact structure, heat transfer efficiency height, pressure reduction, resistant jam, high temperature resistance buckled plate gas heat exchanger.
The technical scheme of the utility model is that:
a corrugated plate gas-gas heat exchanger comprises a box body, a heat exchange plate bundle and a gas inlet and outlet header, wherein the heat exchange plate bundle comprises plate tubes, and the plate tubes are flow channels formed by buckling two heat transfer plates, inserting support fins between the plates and fixedly connecting the two heat transfer plates to form an independent pressure-bearing structure as a medium A; the plurality of plate tubes are fixedly connected in a stacking mode through sealing strips on two sides of the plate tubes to form a heat exchange plate bundle, and rectangular channels between the plate tubes formed through the sealing strips are used as flow channels of a medium B; the heat exchange plate bundle is installed in a box body, the top and the bottom of the box body are fixedly connected with a medium B inlet header and a medium B outlet header, and two sides of the box body are fixedly connected with a medium A inlet header and a medium A outlet header respectively to form a corrugated plate gas-gas heat exchanger.
The heat exchange plate bundle is mounted inside the box body in a suspension mode through a suspension beam arranged at the top of the heat exchange plate bundle.
And the bottom of the heat exchange plate bundle is hermetically and fixedly connected with a thermal compensation element.
The height of the flow channel side of the medium B is adjusted through a seal, and the height H of the flow channel of the medium A and the height H of the flow channel of the medium B are not equal to H or H = H.
The utility model discloses an active effect is:
1. the utility model discloses the heat transfer board is restrainted and is adopted the suspension type installation, and the heat expansion direction is the same with the direction of gravity to the heat transfer board, and the inflation is unrestrained, absorbs thermal expansion relative displacement through lower extreme thermal compensation component, effectively avoids the destruction of thermal stress to the board bundle.
2. The utility model discloses the non-clean gas channel side of low pressure adopts contactless structure, and the slab surface is smooth and do not have the dead zone that flows, and it is convenient to blow grey, through strip of paper used for sealing altitude mixture control low pressure non-clean gas runner height, and reasonable control medium velocity of flow and pressure drop reach the automatically cleaning effect, have solved fluid deposition and have blockked up the problem.
3. The utility model discloses a from the pressure-bearing plate pipe, through the mutual welding of slab straight edge section and inside support fin, effectively improve the single board pipe bearing capacity, increase slab heat transfer area simultaneously, enlarge equipment application scope.
4. The utility model discloses the clean gaseous journey department of low pressure and high pressure all adopts welding or other form seal structures, and the cluster leaks between isolated clean gaseous and the high pressure non-clean gaseous of low pressure, thoroughly solves gas-gas heat exchanger problem of leaking out. The equipment runs reliably for a long period, and the operation and maintenance cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the structure of the self-supporting platen of the present invention;
fig. 4 is a schematic cross-sectional view of fig. 3.
Detailed Description
The present invention and the effects thereof will be further explained with reference to the accompanying drawings.
As shown in figures 1-4, a corrugated plate gas-gas heat exchanger comprises a box body 1, a heat exchange plate bundle 2 and a gas inlet and outlet header. The two heat transfer plates 12 are buckled, the supporting fins 13 are inserted between the plates, and the plates and the straight edges of the plates and the internal supporting fins 13 are welded into a whole to form an independent self-pressure-bearing plate tube 9; the spot welding of the seal 8 on both sides of the plate tube 9 and then the stacking of another plate tube 9 on the upper portion thereof are repeated to form a rectangular passage, the medium a (high pressure clean gas) flow passage (101 → 102) and the medium b (low pressure non-clean gas) flow passage (201 → 202) alternate with each other, and the seal 8 between the two plate tubes is welded and sealed to the adjacent plate tube to form the heat exchange plate bundle 2 as a whole. The top of the heat exchange plate bundle 2 is provided with a suspension beam 7, the heat exchange plate bundle 2 is integrally suspended into the box body 1 through the suspension beam 7 and is welded and fixed with a plate bundle supporting beam 10 (the supporting beam 10 is welded with the inner wall of the box body and is integrated with the box body), the periphery of the upper end of the heat exchange plate bundle 2 is welded with the inner wall of the box body 2 after the heat exchange plate bundle is installed in place to form upper seal, the lower part of the heat exchange plate bundle 2 is welded with a thermal compensation element 11, the other end of the compensation element 11 is welded with an outlet header 5 in a sealing way to form lower seal, so that high-pressure clean gas and low-. The top of the box body 2 is welded with a low-pressure non-clean gas inlet header 3, the bottom of the box body is welded with a low-pressure non-clean gas outlet header 5, one side surface of the box body 2 is welded with a high-pressure clean gas inlet header 4, the other side surface of the box body is welded with a high-pressure clean gas outlet header 6, and the high-pressure clean gas and the low-pressure non-clean gas form cross flow heat exchange inside the equipment.
The top of the heat exchange plate bundle 2 is provided with a suspension beam 7 which is installed in the box body 2 in a suspension manner. The top of the suspension beam 7 is provided with a lifting lug, the bottom of the suspension beam is provided with a tooth-shaped groove, and the tooth-shaped groove is buckled on the straight edge section of the plate pipe 9 and welded with the straight edge section. The heat exchange plate bundle 2 is installed in a suspension mode, so that the thermal expansion direction of the heat exchange plate bundle 2 is the same as the gravity direction, the expansion is free of restraint, and the thermal expansion relative displacement is absorbed by the thermal compensation element 11 at the bottom of the heat exchange plate bundle 2, so that the damage of thermal stress to the plate bundle is effectively avoided.
The plate tubes 9 of the heat exchange plate bundle 2 are in contactless connection, the plate tubes 9 are formed by buckling two heat transfer plate sheets 12, supporting fins 13 are inserted between the plate sheets, the plate tubes 9 and the internal supporting fins 13 are connected with the heat transfer plate sheets 12 into a whole through methods such as fusion welding, pressure welding, brazing and the like to form an independent self-pressure-bearing structure, and the plurality of plate tubes 9 and the seal 8 are assembled and welded to form the heat exchange plate bundle 2. And a non-contact structure is adopted between the plate pipes 9, so that no dust deposition contact and no flow dead zone are ensured in a low-pressure non-clean gas flow channel, and the dust blowing is convenient. The height of the low-pressure unclean gas flow channel is adjusted through the height of the seal 8, the flow speed and the pressure drop of the medium are reasonably controlled, the self-cleaning effect is achieved, and the problem of fluid dust accumulation and blockage is solved. The plate pipe 9 adopts a self-bearing structure, and the straight edge section and the internal supporting points of the plate pipe 9 are welded, so that the bearing capacity of the single plate pipe is effectively improved, and the rigidity of the plate pipe 9 is increased.
The heat transfer plates 12 are pressed corrugated plates or smooth flat plates. The medium with small blocking risk can adopt a corrugated plate to strengthen heat transfer, and the medium with large blocking risk adopts a smooth flat plate to keep a flow passage smooth. The two sides of the heat transfer plate 12 are respectively provided with turbulence ripples 1201 for gas turbulence, so that heat transfer is enhanced, and the heat exchange efficiency is improved.
The support fins 13 are of a zigzag, porous, straight or corrugated type. The requirements of medium characteristics, fluid pressure drop and heat transfer process are met, and different fin types are selected according to the requirements of high and low pressure bearing capacity of the channel. And the high-pressure clean gas side is provided with a supporting fin for supporting the plate sheets and maintaining the channel clearance of the plate tubes 9. The quantity and the intervals of the supporting fins 13 are reasonably set according to the pressure, the pressure bearing capacity of the plate forming pipe 9 is improved through the arrangement form, the heat transfer of the medium is strengthened, and the heat exchange area of the equipment is increased.
The seal 8 is used for adjusting the height of the low-pressure unclean gas flow channel, the height H of the high-pressure clean gas flow channel and the height H, H ≠ H or H = H of the low-pressure unclean gas flow channel, and simultaneously separates the cold fluid flow channel and the hot fluid flow channel to form a mutually closed space. The channel height is mainly used for controlling the flow velocity of media on two sides, the heat transfer can be enhanced by improving the flow velocity, the blocking risk of the channel is reduced, and the channel height on two sides is determined according to the characteristics of the media on all sides.
Claims (7)
1. The utility model provides a buckled plate gas-gas heat exchanger, includes box (1), heat transfer board bundle (2), gaseous inlet and outlet collection case, its characterized in that: the heat exchange plate bundle (2) comprises a plate tube (9), wherein the plate tube (9) is a flow channel in which two heat transfer plates (12) are buckled and support fins (13) are inserted between the plates and are fixedly connected with each other to form an independent pressure-bearing structure as a medium A; a plurality of plate tubes (9) are fixedly connected in a stacking mode through seals (8) on two sides of the plate tubes to form a heat exchange plate bundle (2), and rectangular channels between the plate tubes (9) formed through the seals (8) are used as flow channels of a medium B; the heat exchange plate bundle (2) is installed in a box body (1), the top and the bottom of the box body (1) are fixedly connected with a medium second inlet header (3) and a medium second outlet header (5), and two sides of the box body (1) are fixedly connected with a medium first inlet header (4) and a medium first outlet header (6) respectively to form a corrugated plate gas-gas heat exchanger.
2. A corrugated plate gas to gas heat exchanger as claimed in claim 1, wherein: the heat exchange plate bundle (2) is installed in the box body (1) in a suspension mode through a suspension beam (7) arranged at the top of the heat exchange plate bundle.
3. A corrugated plate gas to gas heat exchanger as claimed in claim 1, wherein: the bottom of the heat exchange plate bundle (2) is fixedly connected with a thermal compensation element (11) in a sealing way.
4. A corrugated plate gas to gas heat exchanger as claimed in claim 1, wherein: the heat transfer plates (12) are pressed corrugated plates or smooth flat plates.
5. A corrugated plate gas to gas heat exchanger according to claim 4, characterized in that: turbulent flow corrugations (1201) are respectively arranged on two sides of the heat transfer plate (12).
6. A corrugated plate gas to gas heat exchanger as claimed in claim 1, wherein: the supporting fins (13) are of a sawtooth shape, a porous shape, a straight shape or a corrugated shape.
7. A corrugated plate gas to gas heat exchanger according to any one of claims 1 to 6, characterized in that: the height of the flow passage side of the medium B is adjusted through a seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922149440.4U CN212378563U (en) | 2019-12-04 | 2019-12-04 | Corrugated plate gas-gas heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922149440.4U CN212378563U (en) | 2019-12-04 | 2019-12-04 | Corrugated plate gas-gas heat exchanger |
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| Publication Number | Publication Date |
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| CN212378563U true CN212378563U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922149440.4U Active CN212378563U (en) | 2019-12-04 | 2019-12-04 | Corrugated plate gas-gas heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587701A (en) * | 2021-07-16 | 2021-11-02 | 北京科荣达航空科技股份有限公司 | Heat exchanger with ozone conversion and high-temperature precooling functions |
-
2019
- 2019-12-04 CN CN201922149440.4U patent/CN212378563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587701A (en) * | 2021-07-16 | 2021-11-02 | 北京科荣达航空科技股份有限公司 | Heat exchanger with ozone conversion and high-temperature precooling functions |
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