CN220793988U - Heat exchange plate, heat exchange plate pair, heat exchange plate bundle and heat exchanger - Google Patents
Heat exchange plate, heat exchange plate pair, heat exchange plate bundle and heat exchanger Download PDFInfo
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- CN220793988U CN220793988U CN202322634744.6U CN202322634744U CN220793988U CN 220793988 U CN220793988 U CN 220793988U CN 202322634744 U CN202322634744 U CN 202322634744U CN 220793988 U CN220793988 U CN 220793988U
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- 239000012530 fluid Substances 0.000 claims description 81
- 238000009826 distribution Methods 0.000 claims description 11
- 238000005299 abrasion Methods 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 238000012546 transfer Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000005493 welding type Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The application provides a heat exchange plate, a heat exchange plate pair, a heat exchange plate bundle and a heat exchanger, wherein the heat exchange plate comprises: the plate body is of a flat plate structure, blank areas are respectively arranged at two ends of the plate body along the length direction, turbulent flow areas are communicated between the blank areas, a plurality of first grooves which are distributed at intervals are arranged in the turbulent flow areas, a first flow channel connecting port is arranged on the short side of the plate body, and the first flow channel connecting port is connected with the blank areas. The heat exchange plate, the heat exchange plate pair, the heat exchange plate bundle and the heat exchanger provided by the application have the advantages of simple structure, convenience in manufacture and low production cost, can effectively improve the abrasion phenomenon, prolong the service life and improve the heat exchange effect.
Description
Technical Field
The application relates to the technical field of heat exchange, in particular to a heat exchange plate, a heat exchange plate pair, a heat exchange plate bundle and a heat exchanger.
Background
The plate heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is applied to the fields of chemical industry, food and the like, the plate heat exchanger can be divided into a gasket type heat exchanger and a welding type heat exchanger according to different sealing modes, and a heat exchange plate of the welding type heat exchanger adopts welding sealing, so that the temperature resistance problem of gaskets of the gasket type heat exchanger is solved, and the wide-channel plate type welding heat exchanger is suitable for heat exchange between fluids containing solid particles and fibrous impurities due to wider runner spacing, prolongs the cleaning period of the heat exchanger to the greatest extent, and is widely applied to the industries of alumina and the like.
In the field of application of alumina, because a large amount of high-hardness alumina solid particles are involved in the process of intermediate cooling production of alumina solution, abrasion failure generally occurs in heat exchangers applied in the industry, heat exchange plates of the heat exchangers are generally provided with a whole-surface groove structure to increase heat transfer performance and pressure bearing performance, fluid flow is uneven at an inlet section of the heat exchanger, and when the fluid containing alumina particles is flushed at a high flow speed, serious abrasion occurs on one side of the groove structure facing the inlet, so that a plate body is perforated and the heat exchanger fails.
In order to solve the problem of abrasion of the groove structure of the inlet section, a common solution is to locally spray the port of the heat exchange plate to improve the abrasion resistance of the plate body, but the method has high manufacturing cost and complex process, and because the coverage distance of sprayed matters is small due to the limitation of the process, the effect of improving the abrasion is limited, so that a heat exchange plate capable of simply and effectively improving the abrasion phenomenon of the inlet section is needed.
Disclosure of utility model
In view of the above, the present application is directed to a heat exchange plate, a heat exchange plate pair, a heat exchange plate bundle and a heat exchanger for solving the related problems mentioned in the background art.
In view of the above object, the present application provides, in a first aspect, a heat exchange plate comprising: the plate body is of a flat plate structure, blank areas are respectively arranged at two ends of the plate body along the length direction, turbulent flow areas are communicated between the blank areas, a plurality of first grooves which are distributed at intervals are arranged in the turbulent flow areas, a first flow channel connecting port is arranged on the short side of the plate body, and the first flow channel connecting port is connected with the blank areas.
Further, a second flow channel connecting port is formed in the long side of the plate body, and the second flow channel connecting port is communicated with the blank area and the turbulent flow area.
Further, a distance between one side of the blank area, which is close to the spoiler area, and a short side of the corresponding plate body is a first distance, a distance between one side of the second fluid channel connecting port, which is far away from the spoiler area, and a short side of the corresponding plate body is a second distance, a distance between one side of the second fluid channel connecting port, which is close to the spoiler area, and a short side of the corresponding plate body is a third distance, and the first distance is greater than the second distance and is smaller than the third distance.
Further, the first distance is 100mm to 300mm, and the difference between the first distance and the second distance is 50mm to 300mm.
Further, a plurality of second grooves are arranged in the blank area at intervals, and the depth of each second groove is smaller than that of each first groove.
Further, the depth of the first groove is less than or equal to 4mm, and the depth of the second groove is less than or equal to 2mm.
Further, the distribution density of the first grooves in the turbulent flow area is larger than that of the second grooves in the blank area.
In a second aspect of the application, there is provided a pair of heat exchanger plates comprising two heat exchanger plates according to the first aspect as described above arranged in opposition, between which a first fluid flow channel is formed.
In a third aspect of the application, a heat exchange plate bundle is provided, comprising a plurality of stacked pairs of heat exchange plates as described in the second aspect above, with a second fluid flow path being formed between two adjacent pairs of heat exchange plates.
In a fourth aspect of the application, a heat exchanger is provided comprising a heat exchanger plate bundle as described in the third aspect above.
From the above, the heat exchange plate pair, the heat exchange plate bundle and the heat exchanger provided by the application comprise a plate body, wherein the plate body has a flat plate structure, so that the uniform flow of fluid is ensured; the short side of the plate body is provided with a first fluid channel connector, the first fluid channel connector is used for forming an inlet and an outlet of a first fluid channel, two ends of the plate body along the length direction are respectively provided with a blank area, the first fluid channel connector is connected with the blank areas, a turbulent flow area is communicated between the two blank areas, and a plurality of first grooves which are distributed at intervals are arranged in the turbulent flow area and used for enabling the first fluid to fully disturb heat exchange with the second fluid, so that the heat exchange effect is improved; the first fluid passes through the blank area before entering the turbulent flow area, so that compared with the design in the related art, the time for starting the impact abrasion of the groove structure is prolonged, the resistance of the first fluid in the blank area is reduced, the abrasion influence on the inlet section is reduced, the blank area can enable the first fluid to flow and develop fully, the flow velocity and flow distribution is more uniform, the subsequent abrasion influence on the first groove is further reduced, the first fluid can flow uniformly in the turbulent flow area, the heat exchange effect is improved, and the service life is prolonged; the heat exchange plate, the heat exchange plate pair, the heat exchange plate bundle and the heat exchanger are simple in structure, convenient to manufacture and low in production cost, abrasion can be effectively improved, the service life is prolonged, and the heat exchange effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first heat exchanger plate according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a second heat exchange plate according to an embodiment of the present application;
FIG. 3 is a schematic structural view of a third heat exchange plate according to an embodiment of the present application;
FIG. 4 is a schematic view of a fourth heat exchanger plate according to an embodiment of the present application;
Fig. 5 is a schematic structural view of a fifth heat exchange plate according to an embodiment of the present application.
Reference numerals: 1. a plate body; 1-1, blank area; 1-2, a turbulent flow area; 2. a first groove; 3. a first flow channel connection port; 4. a second flow channel connection port; 5. and a second groove.
Detailed Description
The present application will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present application more apparent.
It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The plate heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is applied to the fields of chemical industry, food and the like, the plate heat exchanger can be divided into a gasket type heat exchanger and a welding type heat exchanger according to different sealing modes, and a heat exchange plate of the welding type heat exchanger adopts welding sealing, so that the temperature resistance problem of gaskets of the gasket type heat exchanger is solved, and the wide-channel plate type welding heat exchanger is suitable for heat exchange between fluids containing solid particles and fibrous impurities due to wider runner spacing, prolongs the cleaning period of the heat exchanger to the greatest extent, and is widely applied to the industries of alumina and the like.
In the field of application of alumina, because a large amount of high-hardness alumina solid particles are involved in the process of intermediate cooling production of alumina solution, abrasion failure generally occurs in heat exchangers applied in the industry, heat exchange plates of the heat exchangers are generally provided with a whole-surface groove structure to increase heat transfer performance and pressure bearing performance, fluid flow is uneven at an inlet section of the heat exchanger, and when the fluid containing alumina particles is flushed at a high flow speed, serious abrasion occurs on one side of the groove structure facing the inlet, so that a plate body is perforated and the heat exchanger fails.
In order to solve the problem of abrasion of the groove structure of the inlet section, a common solution is to locally spray the port of the heat exchange plate to improve the abrasion resistance of the plate body, but the method has high manufacturing cost and complex process, and because the coverage distance of sprayed matters is small due to the limitation of the process, the effect of improving the abrasion is limited, so that a heat exchange plate capable of simply and effectively improving the abrasion phenomenon of the inlet section is needed.
The following describes the technical solution of the present application in further detail by means of specific examples in combination with fig. 1 to 5.
In some embodiments of the application there is provided a heat exchanger plate, as shown in fig. 1, comprising: the plate body 1 is of a flat plate structure, blank areas 1-1 are respectively arranged at two ends of the plate body 1 along the length direction, turbulent flow areas 1-2 are communicated between the blank areas 1-1, a plurality of first grooves 2 which are distributed at intervals are arranged in the turbulent flow areas 1-2, a first flow channel connecting port 3 is arranged on the short side of the plate body 1, and the first flow channel connecting port 3 is connected with the blank areas 1-1.
The heat exchange plate comprises a plate body 1, as shown in fig. 1, wherein the L direction is the length direction of the plate body 1, the W direction is the width direction of the plate body 1, the plate body 1 is rectangular, the material is stainless steel, the heat exchange plate is not limited in particular, the plate body 1 is of a flat plate structure, the structure is simple, and the uniform flow of fluid is ensured.
The short side of the plate body 1 is provided with a first fluid channel connecting port 3, the first fluid channel connecting port 3 is a stamping forming structure with an outward opening and is used for connecting the short sides of the heat exchange plates, the first fluid channel connecting ports 3 of the two heat exchange plates are butted to form an inlet and an outlet of a first fluid channel, and the first fluid is, for example, fluid containing solid particles and fibrous impurities such as alumina solution, and the like, and the first fluid is not particularly limited.
The two ends of the plate body 1 along the length direction are respectively provided with blank areas 1-1, a first fluid channel connecting port 3 is connected with the blank areas 1-1, a turbulent flow area 1-2 is communicated between the two blank areas 1-1, a plurality of first grooves 2 which are distributed at intervals are arranged in the turbulent flow area 1-2 and are used for enabling first fluid to fully disturb and exchange heat with second fluid so as to improve heat exchange effect, and the second fluid is fluid such as water and the like, and is not particularly limited.
Compared with the design in the related art, the time for starting the impact abrasion of the groove structure is prolonged, the resistance of the first fluid in the blank area 1-1 is reduced, the abrasion influence on the inlet section is reduced, the blank area 1-1 can enable the first fluid to fully flow and develop, the flow velocity and the flow quantity are distributed more uniformly, the subsequent abrasion influence on the first groove 2 is further reduced, the first fluid can uniformly flow in the turbulent area 1-2, and the heat exchange effect and the service life are improved; and the blank area 1-1 has a simple structure, and the manufacturing process is easier than the spraying process.
As shown in fig. 1, the first grooves 2 are diagonal grooves; as shown in fig. 2, the first groove 2 is a chevron groove; as shown in fig. 3, the first groove 2 is a zigzag groove; as shown in fig. 4, the first grooves 2 are wavy grooves; as shown in fig. 5, the first grooves 2 are double corrugated grooves.
The heat exchange plate has the advantages of simple structure, convenient manufacture and low production cost, can effectively improve the abrasion phenomenon, prolongs the service life and improves the heat exchange effect.
In some embodiments, as shown in fig. 1, the long side of the board 1 is provided with a second flow channel connection port 4, and the second flow channel connection port 4 is communicated with the blank area 1-1 and the spoiler area 1-2.
The long side of the plate body 1 is provided with a second fluid channel connecting port 4, the second fluid channel connecting port 4 is of a convex structure, and the second fluid channel connecting ports 4 of the two heat exchange plates are in butt joint to form an inlet and an outlet of a second fluid channel through stamping the plate body 1; the second fluid channel connecting ports 4 are arranged at the corners of the plate body 1, so that the second fluid can enter the fluid channels to be distributed over the whole plate body 1; as shown in fig. 1, two second fluid channel connectors 4 are distributed along the opposite angles of the plate body 1, so as to avoid short circuit of fluid flow.
The second fluid channel connecting port 4 is communicated with the blank area 1-1 and the turbulent flow area 1-2, and the second fluid flows through the blank area 1-1, so that flow distribution can be more uniform, a flow dead zone is avoided, the heat exchange effect is ensured, and the service life of the heat exchanger is prolonged.
In some embodiments, as shown in fig. 1, a distance between a side of the blank area 1-1 near the spoiler area 1-2 and a short side of the corresponding plate body 1 is a first distance, a distance between a side of the second fluid channel connection port 4 away from the spoiler area 1-2 and a short side of the corresponding plate body 1 is a second distance, and a distance between a side of the second fluid channel connection port 4 near the spoiler area 1-2 and a short side of the corresponding plate body 1 is a third distance, where the first distance is greater than the second distance and less than the third distance.
As shown in fig. 1, L1 is a distance between one side of the blank area 1-1 near the spoiler area 1-2 and the short side of the nearby plate body 1, i.e., a first distance; l2 is the distance between one side of the second flow channel connecting port 4 away from the spoiler 1-2 and the short side of the nearby plate body 1, namely a second distance; l3 is the distance between the side of the second fluid connection port 4 near the spoiler 1-2 and the short side of the adjacent plate body 1, i.e., the third distance.
The second fluid channel connecting ports 4 are arranged at intervals with the short sides of the plate body 1, the area flow between the second fluid channel connecting ports 4 and the short sides of the plate body 1 is small, and the area flow is a detention area, the first distance is larger than the second distance, namely L1 is larger than L2, so that the second fluid is ensured to flow through the blank area 1-1, the flow resistance of the second fluid in the area close to the short sides is reduced, the fluid flow distribution is more uniform, and the heat transfer effect is improved.
The first distance is smaller than the third distance, namely L1 is smaller than L3, so that the second fluid can flow through the turbulent flow area 1-2 at the inlet, the fluid can exchange heat fully, and the influence on the heat exchange effect is avoided.
In some embodiments, the first distance is 100mm to 300mm and the difference between the first distance and the second distance is 50mm to 300mm.
The first distance L1 is 100mm to 300mm, for example, 100mm, 150mm, 200mm, 250mm, 300mm, or the like, and is not particularly limited to ensure sufficient development of the fluid; the second distance L2 is greater than 50mm, and the difference between the first distance and the second distance, i.e., L1-L2, is 50mm to 300mm, for example, 50mm, 100mm, 150mm, 200mm, 250mm, 300mm, or the like, is not particularly limited, and ensures that the first distance is greater than the second distance, avoiding formation of a flow dead zone.
In some embodiments, as shown in fig. 3, a plurality of second grooves 5 are arranged in the blank area 1-1 at intervals, and the depth of the second grooves 5 is smaller than that of the first grooves 2.
As shown in fig. 3, a plurality of second grooves 5 are arranged in the blank area 1-1 at intervals, and the depth of the second grooves 5 is smaller than that of the first grooves 2, so that the area of the second grooves 5 facing the first fluid inlet side, that is, the impact area of the first fluid is reduced, and the abrasion influence is reduced, compared with the design of the related art; and because the first recess 2 degree of depth is greater than the second recess 5 degree of depth, then the second recess 5 of two heat transfer boards can not butt to increase the heat transfer area to set up the disturbance to fluid of second recess 5 increase, improve the heat transfer effect.
In some embodiments, the depth of the first groove 2 is less than or equal to 4mm and the depth of the second groove 5 is less than or equal to 2mm.
The depth of the first groove 2 is not particularly limited, but is 4mm or less, for example, 4mm, 3mm, 2mm, or 1mm, etc., and the depth of the second groove 5 is not particularly limited, but is 2mm or less, for example, 2mm, 1mm, or 0.5mm, etc.
In some embodiments, as shown in fig. 3, the distribution density of the first grooves 2in the spoiler area 1-2 is greater than the distribution density of the second grooves 5 in the blank area 1-1.
As shown in fig. 3, the distribution density of the first grooves 2 in the turbulent flow region 1-2 is greater than that of the second grooves 5 in the blank region 1-1, i.e. the first grooves 2 are denser than the second grooves 5, so that the area of the groove structure in the blank region 1-1 facing the first fluid inlet side, i.e. the impact area of the first fluid is reduced, and the abrasion influence is further reduced.
In a second aspect of the application, a heat exchanger plate pair is provided, comprising two heat exchanger plates according to any of the embodiments described above arranged in opposition, between which a first fluid flow channel is formed.
A first fluid flow channel is formed between the two heat exchange plates, the first fluid flow channel connecting ports 3 on the two heat exchange plates are connected to form a complete inlet and outlet of the first fluid flow channel, and the pair of heat exchange plates can effectively improve the abrasion phenomenon at the inlet of the first fluid flow channel.
In a third aspect the present application provides a heat exchanger plate bundle comprising a plurality of stacked pairs of heat exchanger plates according to any one of the embodiments above, a second fluid flow channel being formed between two adjacent pairs of heat exchanger plates.
And a second fluid flow channel is formed between the two heat exchange plate pairs, and the second fluid flow channel connectors 4 of the two adjacent heat exchange plate pairs are connected to form a complete inlet and outlet of the second fluid flow channel, so that the uneven distribution phenomenon at the inlet of the second fluid flow channel is effectively improved.
In a fourth aspect of the application, a heat exchanger is provided comprising a heat exchanger plate package according to any one of the embodiments described above.
The heat exchanger has the advantages of simple structure, low production cost, good abrasion resistance effect, uniform fluid distribution, good heat exchange effect and long service life.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the application (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the application, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the application as described above, which are not provided in detail for the sake of brevity.
In addition, where details are set forth to describe example embodiments of the application, it will be apparent to one skilled in the art that embodiments of the application may be practiced without, or with variation of, these details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.
While the application has been described in conjunction with the embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, and the like, which are within the spirit and principles of the embodiments of the application, are intended to be included within the scope of the application.
Claims (10)
1. A heat exchange plate, comprising: the plate body is of a flat plate structure, blank areas are respectively arranged at two ends of the plate body along the length direction, turbulent flow areas are communicated between the blank areas, a plurality of first grooves which are distributed at intervals are arranged in the turbulent flow areas, a first flow channel connecting port is arranged on the short side of the plate body, and the first flow channel connecting port is connected with the blank areas.
2. A heat exchanger plate according to claim 1, wherein the long side of the plate body is provided with a second flow channel connection port, which communicates with the blank area and the spoiler area.
3. The heat exchange plate according to claim 2, wherein a distance between a side of the blank area adjacent to the spoiler area and a short side of the corresponding plate body is a first distance, a distance between a side of the second flow channel connection port away from the spoiler area and a short side of the corresponding plate body is a second distance, a distance between a side of the second flow channel connection port adjacent to the spoiler area and a short side of the corresponding plate body is a third distance, and the first distance is greater than the second distance and less than the third distance.
4. A heat exchanger plate according to claim 3, wherein the first distance is 100mm to 300mm and the difference between the first distance and the second distance is 50mm to 300mm.
5. A heat exchange plate according to claim 1, wherein a plurality of second grooves are arranged in the blank area at intervals, and the depth of the second grooves is smaller than that of the first grooves.
6. A heat exchanger plate according to claim 5, wherein the depth of the first groove is less than or equal to 4mm and the depth of the second groove is less than or equal to 2mm.
7. A heat exchanger plate according to claim 5, wherein the distribution density of the first grooves in the spoiler area is greater than the distribution density of the second grooves in the blank area.
8. A heat exchanger plate pair comprising two heat exchanger plates according to any one of claims 1-7 arranged opposite each other, between which a first fluid flow channel is formed.
9. A heat exchanger plate bundle comprising a plurality of stacked pairs of heat exchanger plates according to claim 8, wherein a second fluid flow path is formed between adjacent pairs of heat exchanger plates.
10. A heat exchanger comprising a heat exchanger plate bundle according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322634744.6U CN220793988U (en) | 2023-09-26 | 2023-09-26 | Heat exchange plate, heat exchange plate pair, heat exchange plate bundle and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322634744.6U CN220793988U (en) | 2023-09-26 | 2023-09-26 | Heat exchange plate, heat exchange plate pair, heat exchange plate bundle and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220793988U true CN220793988U (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322634744.6U Active CN220793988U (en) | 2023-09-26 | 2023-09-26 | Heat exchange plate, heat exchange plate pair, heat exchange plate bundle and heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220793988U (en) |
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2023
- 2023-09-26 CN CN202322634744.6U patent/CN220793988U/en active Active
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