CN112461023A - High-temperature gas-liquid plate heat exchanger capable of resisting temperature shock - Google Patents
High-temperature gas-liquid plate heat exchanger capable of resisting temperature shock Download PDFInfo
- Publication number
- CN112461023A CN112461023A CN202011377610.5A CN202011377610A CN112461023A CN 112461023 A CN112461023 A CN 112461023A CN 202011377610 A CN202011377610 A CN 202011377610A CN 112461023 A CN112461023 A CN 112461023A
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- Prior art keywords
- heat exchange
- gas
- liquid
- plate
- heat exchanger
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
Abstract
The invention discloses a high-temperature gas-liquid plate heat exchanger capable of resisting temperature shock, which comprises a heat exchange fin module, wherein the two ends of the heat exchange fin module are respectively provided with an upper end socket and a lower end socket; the heat exchange plate assembly comprises heat exchange plates, the heat exchange plates are formed by embossing and folding rectangular plates, and liquid side pressing strips support the heat exchange plates to form a liquid circulation channel; the heat exchange plates which are not adjacent to each other are supported by gas side pressure strips to form a gas circulation channel; the upper end enclosure and the lower end enclosure are both provided with high-temperature-resistant heat-insulating materials of the end enclosures, the upper end enclosure is provided with a gas inlet, and the lower end enclosure is provided with a gas outlet. The heat exchange plate is folded in half to replace welding, so that the processing cost is low, the thermal stress damage caused by severe temperature change is small, and the durability is high; the heat exchange area is large, and the heat exchange efficiency can reach more than 90%; the problem that the heat exchange plate is easy to break is expected to be solved, and the heat exchange plate is particularly suitable for being used in a high-temperature environment with severe temperature change.
Description
Technical Field
The invention relates to the field of heat exchange, in particular to a high-temperature gas-liquid plate heat exchanger capable of resisting sudden temperature change.
Background
The heat exchange is a common process in production and life of people, the heat exchanger adopted at present mainly comprises a plate heat exchanger, a tube type heat exchanger and the like, wherein the plate heat exchanger is a novel efficient radiator formed by stacking a series of metal plates with certain corrugated shapes, thin rectangular channels are formed among the metal plates, heat exchange is carried out through metal plates, and the heat exchanger has the advantages of light weight, small size and compact structure, the total heat transfer coefficient is about 3-5 times of that of the tube type heat exchanger, the heat exchange area in unit volume is about 3-5 times of that of the tube type heat exchanger, the occupied area is only 1/5-1/6 of the tube type, pure countercurrent is easy to realize, the terminal temperature difference can be very small, small temperature difference heat transfer is realized, and large-scale and miniaturization are convenient. However, in the prior art, the plate-type heat exchanger is mainly applied to gas-gas heat exchange and liquid-liquid heat exchange, and for the gas-liquid plate heat exchange, because the difference of the heat transfer coefficients of two-phase fluids is large, the temperature difference at two ends of the heat exchanger is large, the welded plates of the heat exchange plates are easy to break under the conditions of high temperature, especially sudden temperature change, and the heat exchange plates are difficult to normally use. Therefore, the research and development of the high-temperature gas-liquid plate heat exchanger which has the advantages of simple structural form, small material consumption, low manufacturing cost, high thermal efficiency, large heat exchange area and suitability for sudden temperature change is urgently needed.
Disclosure of Invention
Aiming at the technical problem, the invention provides a high-temperature gas-liquid plate heat exchanger capable of resisting sudden temperature change.
The technical scheme of the invention is as follows:
a high-temperature gas-liquid plate heat exchanger device capable of resisting temperature shock comprises a heat exchange sheet module; the two ends of the heat exchange fin module are respectively provided with an upper end socket and a lower end socket, the heat exchange fin module comprises a plurality of heat exchange fin assemblies and clamping plates which are overlapped at intervals, a liquid inlet is formed in the right side above the heat exchange fin module, and a liquid outlet is formed in the left side below the heat exchange fin module; the heat exchange plate assembly comprises heat exchange plates, and liquid side pressing strips are used for supporting the heat exchange plates to form a liquid circulation channel; the heat exchange plates which are not adjacent to each other are supported by gas side pressure strips to form a gas circulation channel; and the upper seal head and the lower seal head are respectively provided with a seal head water jacket, the upper seal head is internally provided with a gas inlet, and the lower seal head is internally provided with a gas outlet.
Preferably, the number of the heat exchange plate assemblies in the heat exchange plate module is more than two, at least two fluid passages are formed, and adjacent heat exchange plates are not in contact.
Preferably, the liquid flow channel is communicated with both the liquid inlet and the liquid outlet; the gas flow channel is communicated with the gas inlet and the gas outlet.
Preferably, at least one layer of gas side pressure strip is arranged in the gas circulation channel, and at least one layer of liquid side pressure strip is arranged in the liquid circulation channel.
Preferably, one side of the heat exchange plate is folded at the high-temperature flue gas inlet end, and the other side of the heat exchange plate is welded at the gas outlet end; the spaces formed by the gas side pressing strips, the liquid side pressing strips and the heat exchange plates are vertically staggered layer by layer to form a plurality of liquid-gas parallel spaces which are mutually overlapped.
Preferably, the heat transfer board is formed by rectangular shaped plate impressed watermark fifty percent discount, and the impressed watermark is S font ripple, chevron shape ripple or bump shape ripple, and the fifty percent discount not only can avoid the welding, but also can reduce the fracture.
Preferably, the material of the heat exchange plate is copper, aluminum alloy, carbon steel or stainless steel.
Preferably, the material of the gas side pressing strip and the liquid side pressing strip is carbon steel, stainless steel or the like.
Preferably, the gas side pressing strip and the liquid side pressing strip are hollow cuboids.
Preferably, the intervals of the heat exchange plates are equal, the interval between the plates is 6-60 mm, and the diameter of a through hole of a gas side or liquid side pressing strip is 1-10 mm.
Preferably, a water jacket is arranged at the gas inlet, a lining is arranged on the inner side of the water jacket, and a lining is arranged at the gas outlet.
Preferably, the gas inlet is provided with a high-temperature-resistant heat-insulating material, the inner side of the water jacket is provided with a lining, and the gas outlet is provided with a lining.
Preferably, the heat exchange plate module is provided with clamping plates on two sides and a support on the lower side.
Compared with the prior art, the invention has the beneficial effects that:
(1) the heat exchanger provided by the invention has the advantages of low cost, simple structure, small gas resistance in the device, large flow, small liquid flow and large resistance, thereby realizing asymmetric media; the gas transfers heat to substances in the heat exchanger in a mode of counter-flow from top to bottom in the heat exchange plate module, so that internal heat transfer of two-phase flow is greatly enhanced, the heat exchange process is shortened compared with a common heat exchanger, the energy utilization rate is improved, and the heat exchange efficiency is high; this device integral type heat exchange plate subassembly, on the basis that keeps plate heat exchanger torrent intensity unchangeable even improvement, improves the circulation area and the actual heat transfer area of the less side of heat transfer coefficient of convection current, improves surface heat transfer coefficient to improve plate heat exchanger's total heat transfer coefficient, heat transfer area is big, and heat exchange efficiency can reach more than 90%.
(2) The heat exchanger heat exchange plate provided by the invention is folded to replace welding, the processing cost is low, the thermal stress damage caused by severe temperature change is small, and the durability is high; the problem that the heat exchange plate at the folding position is easy to break in gas-liquid heat exchange can be effectively solved, and the heat exchange plate is particularly suitable for being used in a high-temperature environment with violent temperature change.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention, wherein: 1. a gas outlet; 2. a lower end enclosure; 3. a clamping plate; 4. an upper end enclosure; 5. a gas inlet; 6. an upper end enclosure water jacket; 7. fastening a bolt; 8. a lower end enclosure water jacket; 9. and (4) a bracket.
FIG. 2 is a schematic structural view (sectional view) of the apparatus of the present invention, in which 10. a liquid outlet; 11. a liquid inlet; 12. a heat exchanger fin module.
Fig. 3 is a structural diagram of a heat exchange module when the heat exchange plate of the present invention is rectangular, wherein: 13. a heat exchange plate; 14. pressing a liquid side bar; 15. and air side pressing strips.
Detailed Description
The invention will be further described with reference to the following drawings and specific examples, but the invention is not limited thereto.
As shown in fig. 1 to 3, the apparatus of the present invention includes a heat exchanger plate module 12, two ends of the heat exchanger plate module 12 are respectively an upper end enclosure 4 and a lower end enclosure 2, the heat exchanger plate module 12 is composed of a plurality of heat exchanger plate assemblies which are stacked at intervals, a liquid inlet 11 is arranged on the right side above the heat exchanger plate module 12, a liquid outlet 10 is arranged on the left side below the heat exchanger plate module 12, the heat exchange plate assembly comprises heat exchange plates 13 formed by folding rectangular plate embossing lines, liquid side pressing strips 14 are arranged between the heat exchange plates, a liquid circulation channel is formed, the heat exchange plates which are not adjacent to each other are supported by gas side pressing strips 15, a gas circulation channel is formed, an upper end enclosure water jacket 6 is arranged outside an upper end enclosure 4, a lower end enclosure 2 is provided with a lower end enclosure water jacket 8, a gas inlet 5 is formed in the upper end enclosure 4, a gas outlet 1 is formed in the lower end enclosure 2, clamping plates 3 are arranged on two sides of a heat exchange plate module 12, and a support 9 is arranged on the lower side of the heat exchange.
Examples
The flue gas carrying heat of 70-100 ℃ is introduced into the upper end enclosure 4 from the gas inlet 5 at a speed of 1.0-10.0 m/s, enters the heat exchange plate module 12 from the bending part of the heat exchange plate 13, and exchanges heat with the liquid entering the heat exchange plate module 12 at a speed of 0.1-1.0 m/s in a reverse flow manner, the liquid after heat exchange is discharged from the liquid outlet 10 to supply heat, and the heat exchange efficiency is more than 90%.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The high-temperature gas-liquid plate type heat exchanger device capable of resisting temperature shock is characterized by comprising a heat exchange fin module, wherein an upper end socket and a lower end socket are respectively arranged at two ends of the heat exchange fin module; the heat exchange plate assembly comprises heat exchange plates, and liquid side pressing strips are used for supporting the heat exchange plates to form a liquid circulation channel; the heat exchange plates which are not adjacent to each other are supported by gas side pressure strips to form a gas circulation channel; and the upper seal head and the lower seal head are respectively provided with a seal head water jacket, the upper seal head is internally provided with a gas inlet, and the lower seal head is internally provided with a gas outlet.
2. The high temperature gas-liquid plate heat exchanger device resistant to sudden changes in temperature of claim 1, wherein the number of heat exchange plate assemblies in the heat exchange plate module is two or more, forming at least two fluid passages, and adjacent heat exchange plates are not in contact.
3. The high temperature sudden temperature resistant gas-liquid plate heat exchanger device of claim 1, wherein the liquid flow channel is in communication with both the liquid inlet and the liquid outlet; the gas flow channel is communicated with the gas inlet and the gas outlet.
4. The high temperature sudden temperature resistant gas-liquid plate heat exchanger device of claim 1, wherein at least one gas side pressure strip is provided in the gas flow channel and at least one liquid side pressure strip is provided in the liquid flow channel.
5. The high temperature gas-liquid plate heat exchanger device resistant to temperature shock of claim 1, wherein one side of the heat exchange plate is folded to the edge at the high temperature flue gas inlet end and the other side is welded to the edge at the gas outlet end; the spaces formed by the gas side pressing strips, the liquid side pressing strips and the heat exchange plates are vertically staggered layer by layer to form a plurality of liquid-gas parallel spaces which are mutually overlapped.
6. The high temperature sudden temperature resistant gas-liquid plate heat exchanger device of claim 1, wherein the heat exchange plate is formed by folding rectangular plate embossings in half, the embossings being S-shaped corrugations, herringbone corrugations or bump-shaped corrugations; the heat exchange plate is made of copper, aluminum alloy, carbon steel or stainless steel.
7. The high temperature sudden temperature resistant gas-liquid plate heat exchanger device of claim 1, wherein the gas and liquid side hold-down strips are made of carbon steel or stainless steel; the gas side pressing strip and the liquid side pressing strip are hollow cuboids.
8. The high temperature sudden change resistant gas-liquid plate heat exchanger device of claim 1, wherein the heat exchange plates are equally spaced, and the inter-plate spacing is 6-60 mm; the diameter of the through hole of the gas side or liquid side pressing strip is 1-10 mm; the upper seal head and the lower seal head are equal in size and height.
9. The high temperature gas-liquid plate heat exchanger device resistant to sudden temperature changes of claim 1, wherein a high temperature resistant insulating material is arranged at the gas inlet, a bushing is arranged inside the water jacket, and a bushing is arranged at the gas outlet.
10. The high temperature gas liquid plate heat exchanger device resistant to sudden temperature changes of claim 1, wherein the heat exchange plate module is provided with clamping plates at two sides and a bracket at the lower side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377610.5A CN112461023A (en) | 2020-11-30 | 2020-11-30 | High-temperature gas-liquid plate heat exchanger capable of resisting temperature shock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377610.5A CN112461023A (en) | 2020-11-30 | 2020-11-30 | High-temperature gas-liquid plate heat exchanger capable of resisting temperature shock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112461023A true CN112461023A (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011377610.5A Pending CN112461023A (en) | 2020-11-30 | 2020-11-30 | High-temperature gas-liquid plate heat exchanger capable of resisting temperature shock |
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| CN (1) | CN112461023A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101637868A (en) * | 2009-07-30 | 2010-02-03 | 江苏工业学院 | Production method of plate bundle of overall-folding all-welded plate-type heat exchanger |
| CN204987975U (en) * | 2015-09-07 | 2016-01-20 | 扬州派斯特换热设备有限公司 | All -welded plate -type heat exchanger |
| CN207095352U (en) * | 2017-08-31 | 2018-03-13 | 南京宜热纵联节能科技有限公司 | A kind of novel gas-liquid plate type heat exchanger |
| CN209485115U (en) * | 2019-01-05 | 2019-10-11 | 浙江干氏制冷设备有限公司 | A kind of welded plate type heat exchanger |
-
2020
- 2020-11-30 CN CN202011377610.5A patent/CN112461023A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101637868A (en) * | 2009-07-30 | 2010-02-03 | 江苏工业学院 | Production method of plate bundle of overall-folding all-welded plate-type heat exchanger |
| CN204987975U (en) * | 2015-09-07 | 2016-01-20 | 扬州派斯特换热设备有限公司 | All -welded plate -type heat exchanger |
| CN207095352U (en) * | 2017-08-31 | 2018-03-13 | 南京宜热纵联节能科技有限公司 | A kind of novel gas-liquid plate type heat exchanger |
| CN209485115U (en) * | 2019-01-05 | 2019-10-11 | 浙江干氏制冷设备有限公司 | A kind of welded plate type heat exchanger |
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Application publication date: 20210309 |