CN111947492A - Phase change heat exchanger - Google Patents
Phase change heat exchanger Download PDFInfo
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- CN111947492A CN111947492A CN202010619115.4A CN202010619115A CN111947492A CN 111947492 A CN111947492 A CN 111947492A CN 202010619115 A CN202010619115 A CN 202010619115A CN 111947492 A CN111947492 A CN 111947492A
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- heat exchange
- phase change
- energy storage
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- heat
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- 230000008859 change Effects 0.000 title claims abstract description 116
- 238000004146 energy storage Methods 0.000 claims abstract description 106
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000012071 phase Substances 0.000 description 95
- 239000003507 refrigerant Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 229940087562 sodium acetate trihydrate Drugs 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a phase change heat exchanger, comprising: a housing; the phase-change energy storage plate is used for absorbing or releasing heat, at least one edge of the phase-change energy storage plate is provided with a positioning groove, the phase-change energy storage plates are sequentially arranged side by side, and an installation space is formed between the two oppositely arranged positioning grooves; the heat exchanger comprises a plurality of first heat exchange flow channels, a plurality of second heat exchange flow channels and a plurality of heat exchange tubes, wherein the first heat exchange flow channels are used for conveying a first heat exchange medium; a plurality of second heat exchange flow channels for conveying a second heat exchange medium; the positioning assembly is provided with a plurality of positioning blocks arranged side by side, and a positioning space is formed between every two adjacent positioning blocks. The phase-change energy storage plate is adopted to conduct heat and store energy, so that the heat exchange efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a phase change heat exchanger.
Background
At present, a heat exchanger is widely applied to heat exchange of different media, and is widely applied to the fields of household heating, industrial heat exchange and the like. The heat exchanger is generally provided with two flow paths for different heat exchange media to flow, and the two flow paths can exchange heat with each other to realize heat exchange between two different heat exchange media.
The conventional heat exchanger is generally classified into a plate heat exchanger or a double pipe heat exchanger, and the working principle of the heat exchanger is that heat exchange media flow in different heat exchange pipelines, and the flowing heat exchange media transfer heat with each other to realize exchange. Taking a heat pump heating system as an example, a refrigerant in a heat pump unit in the heat pump heating system enters one heat exchange pipeline of a heat exchanger to flow, and water in a radiator enters the other heat exchange pipeline to flow. The refrigerant flowing into the heat exchanger cannot fully exchange heat with water due to the high flow speed, so that the heat exchange efficiency is low.
In view of this, how to design a heat exchange technology with high heat exchange efficiency is a technical problem to be solved by the invention.
Disclosure of Invention
The invention provides a phase change heat exchanger, which adopts a phase change energy storage plate to conduct heat and store energy so as to improve the heat exchange efficiency.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a phase change heat exchanger comprising:
a housing;
the phase-change energy storage plate is used for absorbing or releasing heat, at least one edge of the phase-change energy storage plate is provided with a positioning groove, the phase-change energy storage plates are sequentially arranged side by side, and an installation space is formed between the two oppositely arranged positioning grooves;
the heat exchanger comprises a plurality of first heat exchange flow channels, a plurality of second heat exchange flow channels and a plurality of heat exchange tubes, wherein the first heat exchange flow channels are used for conveying a first heat exchange medium;
a plurality of second heat exchange flow channels for conveying a second heat exchange medium;
the positioning assembly is provided with a plurality of positioning blocks arranged side by side, and a positioning space is formed between every two adjacent positioning blocks;
the phase change energy storage plates, the first heat exchange flow channel, the second heat exchange flow channel and the positioning assembly are positioned in the shell, the positioning blocks are positioned in the positioning grooves, and the adjacent phase change energy storage plates are clamped between the two corresponding adjacent positioning blocks; the first heat exchange flow channel and the second heat exchange flow channel are alternately arranged, the phase change energy storage plate is arranged between the first heat exchange flow channel and the second heat exchange flow channel, the first heat exchange flow channel is in heat conduction with the phase change energy storage plate in contact, and the second heat exchange flow channel is in heat conduction with the phase change energy storage plate in contact.
Furthermore, the two side edges of the phase change energy storage plate are respectively provided with the positioning grooves.
Further, the positioning assembly comprises:
the two ends of the first mounting component are respectively provided with the positioning blocks which are arranged side by side;
the two ends of the first mounting component are respectively provided with the positioning blocks which are arranged side by side;
the first mounting component is arranged below the phase change energy storage plate, and the second mounting component is arranged above the phase change energy storage plate.
Furthermore, the first mounting part is a box body with an open structure at the top, and the two ends of the bottom of the box body are respectively provided with the positioning blocks which are arranged side by side; the second mounting part is a box cover, and the two ends of the box cover are respectively provided with the positioning blocks which are arranged side by side; the box body is provided with a plurality of phase change energy storage plates, and the box cover covers the top of the phase change energy storage plates.
Furthermore, the box body and the box cover are both made of heat-insulating materials.
Furthermore, the phase change heat exchanger also comprises a first inlet pipe, a first outlet pipe, a second inlet pipe and a second outlet pipe; the first heat exchange flow channel is connected between the first inlet pipe and the first outlet pipe, and the second heat exchange flow channel is connected between the second inlet pipe and the second outlet pipe.
Furthermore, a first mounting groove is formed in a first surface of the phase change energy storage plate, a second mounting groove is formed in a second surface of the phase change energy storage plate, the first heat exchange flow channel is arranged in the first mounting groove, and the second heat exchange flow channel is arranged in the second mounting groove; wherein the first face and the second face are oppositely arranged.
Further, the first heat exchange flow channel and the second heat exchange flow channel are both coil pipes, the first mounting groove and the second mounting groove are both circuitous grooves, and the coil pipes are located in the circuitous grooves.
Furthermore, the first heat exchange runner and the second heat exchange runner are both microchannel heat exchangers, the first mounting groove and the second mounting groove are both strip-shaped grooves, and microchannel flat tubes of the microchannel heat exchangers are located in the strip-shaped grooves.
Further, the first heat exchange flow channels are all coil pipes, and the first mounting groove is a roundabout groove; the second heat exchange runner is a micro-channel heat exchanger, the second mounting grooves are all strip-shaped grooves, and micro-channel flat tubes of the micro-channel heat exchanger are located in the strip-shaped grooves.
Compared with the prior art, the invention has the advantages and positive effects that: the phase change energy storage plates are arranged between the first heat exchange flow channel and the second heat exchange flow channel, so that on one hand, heat is transferred by the phase change energy storage plates, on the other hand, energy can be stored by the phase change energy storage plates, and during assembly, the phase change energy storage plates are positioned by the positioning assembly, so that the phase change energy storage plates can be stably and reliably arranged in the shell; and in the in-service use process, first heat transfer medium and second heat transfer medium carry out the heat exchange with phase transition energy storage board respectively, and wherein hotter medium releases the heat and heats phase transition energy storage board, and colder medium then absorbs the heat that phase transition energy storage board conducts, and utilize phase transition energy storage board to carry out solid-solid phase transition, can be fast the efficient with the heat quick absorption of hotter medium release, can prolong the time of heating colder medium again, and then improve heat exchange efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a phase change heat exchanger according to an embodiment of the present invention;
FIG. 2 is an exploded view of one embodiment of the phase change heat exchanger of the present invention;
FIG. 3 is a cross-sectional view of one embodiment of a phase change heat exchanger of the present invention;
FIG. 4 is an assembly view of the phase change energy storage plate, the first heat exchange flow channel and the second heat exchange flow channel in an embodiment of the phase change heat exchanger of the present invention;
FIG. 5 is an exploded assembly view of the phase change energy storage plate, the first heat exchange flow channel and the second heat exchange flow channel of FIG. 4;
FIG. 6 is a partial cross-sectional view of a phase change energy storage plate in an embodiment of the phase change heat exchanger of the present invention;
FIG. 7 is a schematic view of a first mounting member in an embodiment of the phase-change heat exchanger of the present invention;
fig. 8 is a schematic structural diagram of a second mounting component in an embodiment of the phase change heat exchanger of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 8, the present embodiment provides a phase change heat exchanger, including: the phase-change energy storage device comprises a shell 1, a plurality of phase-change energy storage plates 2, a plurality of first heat exchange flow channels 3, a plurality of second heat exchange flow channels 4 and a positioning assembly 5.
The shell 1 serves as an external protection component and is used for installing and containing the phase change energy storage plate 2, the first heat exchange flow channel 3, the second heat exchange flow channel 4 and the positioning component 5. The phase change energy storage plate 2 is used for absorbing or releasing heat to perform phase change, for example: the phase-change energy storage plate 2 can be made of materials such as sodium acetate trihydrate and the like to realize solid-solid phase change, namely, powdery sodium acetate trihydrate is pressed to form a plate-shaped structure to obtain the phase-change energy storage plate; of course, the solid-liquid phase change material may also be used, that is, the phase change energy storage plate 2 is a hollow structure, and the solid-liquid phase change material is filled in the hollow structure. The first heat exchange flow channel 3 is used for conveying a first heat exchange medium and exchanging heat with the phase change energy storage plate 2, and the second heat exchange flow channel 4 is used for conveying a second heat exchange medium and exchanging heat with the phase change energy storage plate 2.
The phase change energy storage plate 2, the first heat exchange flow channel 3 and the second heat exchange flow channel 4 are located in the shell 1, a first heat exchange medium flows in the first heat exchange flow channel 3 and exchanges heat with the phase change energy storage plate 2, and similarly, a second heat exchange medium flows in the second heat exchange flow channel 4 and exchanges heat with the phase change energy storage plate 2. The first heat exchange flow channel 3 and the second heat exchange flow channel 4 are alternately arranged, the phase change energy storage plate 2 is arranged between the first heat exchange flow channel and the second heat exchange flow channel 4, the first heat exchange flow channel 3 is in heat conduction with the phase change energy storage plate 2 in contact, and the second heat exchange flow channel 4 is in heat conduction with the phase change energy storage plate 2 in contact.
In addition, in order to assemble the plurality of phase change energy storage plates 2 together and put the assembled phase change energy storage plates into the housing 1, the plurality of phase change energy storage plates 2 are positioned and installed through the positioning assembly 5, for this purpose, a positioning groove 23 is arranged on at least one edge of the phase change energy storage plates 2, the plurality of phase change energy storage plates 2 are sequentially arranged side by side, and an installation space is formed between the two oppositely arranged positioning grooves; the positioning assembly 5 is configured with a plurality of positioning blocks 50 arranged side by side, and a positioning space is formed between two adjacent positioning blocks. During assembly, the two phase change energy storage plates 2 are attached together and placed between two adjacent positioning blocks 50, so that the two phase change energy storage plates clamp the positioning column through the two positioning blocks 50, and meanwhile, the two positioning grooves arranged oppositely accommodate the positioning blocks 50 correspondingly, so that an installation space is provided for the positioning blocks 50.
In the actual use process, the first heat exchange flow channel 3 and the second heat exchange flow channel 4 are correspondingly connected in the circulating flow channels through which different heat exchange media flow, so that the first heat exchange medium and the second heat exchange medium exchange heat through the phase change energy storage plate 2 arranged in the middle in the flowing process.
For the phase change energy storage plate 2 between the first heat exchange flow channel 3 and the second heat exchange flow channel 4, the phase change energy storage plate 2 can not only transfer heat between the first heat exchange flow channel 3 and the second heat exchange flow channel 4, but also store heat by utilizing the phase change principle. Like this, in the heat exchange process, the heat transfer medium of higher temperature will exchange heat with phase change energy storage plate 2 high efficiency, heats the heat transfer medium of lower temperature through phase change energy storage plate 2 on the one hand, and on the other hand comes further storage heat through phase change energy storage plate 2, prolongs the heating time to improve heat exchange efficiency.
Taking a heat pump heating system as an example, a high-temperature refrigerant output by a compressor in a heat pump unit is used as a first heat exchange medium, and a heat exchange liquid flowing in a radiator in a user's home is used as a second heat exchange medium. The first heat exchange flow channel 3 is connected with a compressor, a throttling device and a heat exchanger in the heat pump unit to form a refrigerant loop, and the first heat exchange flow channel 3 is connected with a radiator to form a heat dissipation loop.
After the compressor is started, the refrigerant is driven to circularly flow in the refrigerant loop, flows through the first heat exchange flow channel 3 and releases heat to heat the phase change energy storage plate 2, and more heat can be stored by utilizing the phase change characteristic of the phase change energy storage plate 2, so that the heat exchange efficiency of the refrigerant in the first heat exchange flow channel 3 is improved. Meanwhile, the heat exchange fluid flowing in the radiator flows through the second heat exchange flow channel 4 and absorbs the heat transferred by the phase change energy storage plate 2. More importantly, in the running process of the compressor, the phase change energy storage plate 2 can absorb more heat and store the heat, so that the heat of the heat exchange liquid in the second heat exchange flow channel 4 is maintained for a long time to be heated by the heat released by the phase change energy storage plate 2 in the shutdown state of the compressor, and the heat exchange efficiency of the heat exchange liquid in the second heat exchange flow channel 4 is further improved.
In the actual assembly process, the phase change energy storage plate 2, the first heat exchange flow channel 3 and the second heat exchange flow channel 4 are integrally placed in the shell 1 after being preassembled by the positioning assembly 5. The shell 1 can be used for installing the phase change energy storage plate 2, the first heat exchange flow channel 3, the second heat exchange flow channel 4 and the positioning assembly 5, and can also be used for protecting the phase change energy storage plate 2, the first heat exchange flow channel 3 and the second heat exchange flow channel 4. In order to improve the heat insulating performance, a heat insulating layer (not shown) is provided on the inner wall of the housing 1 so as to improve the heat insulating performance of the housing 1.
Meanwhile, the first external connection port 300 of the first heat exchange flow channel 3 and the second external connection port 400 of the second heat exchange flow channel 4 are exposed outside the housing 1, so as to be conveniently connected with an external pipeline.
In some embodiments, the two side edges of the phase change energy storage plate 2 are respectively provided with the positioning grooves, and correspondingly, the positioning assemblies 5 are respectively provided with positioning blocks 50 on the corresponding sides to perform positioning preassembly on the two sides of the phase change energy storage plate 2.
In some embodiments, the positioning assembly 5 comprises: a first mounting member 51 and a second mounting member 52. The two end parts of the first mounting part 51 are respectively provided with positioning blocks 50 arranged side by side, and the two end parts of the first mounting part 51 are respectively provided with positioning blocks 50 arranged side by side; the first mounting part 51 is arranged below the phase change energy storage plate 2, and the second mounting part is arranged above the phase change energy storage plate 2.
Specifically, during assembly, the first mounting part 51 is placed at the bottom to bear the phase change energy storage plates 2, and meanwhile, the positioning blocks 50 on the first mounting part 51 are used for positioning the phase change energy storage plates 2 at two sides of the bottom; after the plurality of phase change energy storage plates 2 are preassembled on the first mounting part 51, the second mounting part 52 is placed on the top of the phase change energy storage plates, and the positioning blocks 50 on the second mounting part 52 are used for positioning the two sides of the top of the phase change energy storage plates.
In a preferred embodiment, the first mounting component 51 is a box body with an open top, and two ends of the bottom of the box body are respectively provided with positioning blocks 50 arranged side by side; the second mounting part 52 is a box cover, and positioning blocks 50 arranged side by side are respectively arranged at two ends of the box cover; wherein, a plurality of phase change energy storage boards 2 set up in the box body, the lid covers the top at phase change energy storage board 2. Specifically, the first mounting part 51 is integrally in a box shape, the top of the first mounting part is in an open structure, so that an operator can conveniently mount each phase change energy storage plate 2 into the box body, and the phase change energy storage plates 2 are effectively accommodated and supported from the side by using the box structure; the second mounting member 52 of the lid structure is then mounted in place from the top to complete the pre-assembly. In order to improve the heat insulation performance, the box body and the box cover are both made of heat insulation materials, such as: plastic foam, etc., without limitation.
For the concrete entities of the first heat exchange flow channel 3 and the second heat exchange flow channel 4, a refrigerant pipe or a microchannel pipe may be adopted, which is exemplified below
In some embodiments, in order to improve the heat exchange efficiency more effectively, the first heat exchange flow channel 3 is a microchannel heat exchanger 31, and is matched with a first inlet pipe 32 and a first outlet pipe 33, and the microchannel heat exchanger 31 is connected between the first inlet pipe 32 and the first outlet pipe 33; similarly, the second heat exchange flow channel 4 adopts a heat exchange tube 41, which is matched with the first heat exchange flow channel and is also provided with a second inlet tube 42 and a second outlet tube 43, and the heat exchange tube 41 is connected between the second inlet tube 42 and the second outlet tube 43; wherein, microchannel heat exchanger 31 and heat exchange tube 41 are arranged alternately, and phase change energy storage plate 22 is provided between microchannel heat exchanger 31 and heat exchange tube 41. In addition, the ports of the first inlet pipe 32 and the first outlet pipe 33 extending out of the housing 1 form a first external port 300, and the ports of the second inlet pipe 42 and the second outlet pipe 43 extending out of the housing 1 form a second external port 400.
Specifically, in the actual assembling process, the adjacent microchannel heat exchanger 31 and the heat exchange tube 41 are spaced by the phase change energy storage plate 22, so that the microchannel heat exchanger 31, the phase change energy storage plate 2 and the heat exchange tube 41 form a unit, and the multiple units are correspondingly attached together in sequence to form a module, thereby realizing high-efficiency and sufficient heat exchange and improving the heat exchange efficiency.
In some embodiments, in order to facilitate accurate assembly, the first surface of the phase change energy storage plate 2 is used for mounting the microchannel heat exchanger 31, the second surface of the phase change energy storage plate 2 is used for mounting the heat exchange tube 41, the first surface is provided with a first mounting groove 21, the microchannel heat exchanger 31 is located in the first mounting groove 21, the second surface is provided with a second mounting groove 22, and the heat exchange tube 41 is located in the second mounting groove 22; wherein, the first face and the second face are arranged oppositely.
The operator positions and installs the microchannel flat tube 311 of the microchannel heat exchanger 31 through the first installation groove 21, and also positions and installs the heat exchange tube 41 through the second installation groove 22. Taking the micro-channel heat exchanger 31 as an example, the micro-channel heat exchanger 31 is placed in the first mounting groove 21, and in order to improve the heat conduction efficiency and the assembling reliability, heat-conducting glue can be further coated in the first mounting groove 21, so that the micro-channel heat exchanger 31 can be positioned and mounted more firmly through the heat-conducting glue, and meanwhile, the heat conduction efficiency between the micro-channel heat exchanger 31 and the phase change energy storage plate 22 is improved.
In another embodiment, the heat exchanging pipes 41 may have a serpentine coil structure to increase the contact heat exchanging area, which is more beneficial to improve the heat exchanging efficiency.
In one embodiment, to facilitate the installation of the microchannel heat exchanger 31, the header 312 of the microchannel heat exchanger 31 is disposed in the positioning groove 23 on the corresponding side. Specifically, since the pipe diameter of the collecting pipe 312 of the microchannel heat exchanger 31 is much larger than the thickness of the microchannel flat pipe 311, in order to meet the design requirement of the phase change heat exchanger 3 for compact structure, the positioning groove 23 is formed at the edge of the first surface of the phase change energy storage plate 2 to mount and receive the collecting pipe 312, so that the overall structure is more compact. Thus, the positioning grooves can be fully utilized to place the collecting main 312 and the positioning block 50.
In some embodiments, in order to improve the energy storage capacity, phase change energy storage plates 22 are disposed on both sides of the microchannel heat exchanger 31; similarly, phase change energy storage plates 22 are arranged on two sides of the heat exchange tube.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. A phase change heat exchanger, comprising:
a housing;
the phase-change energy storage plate is used for absorbing or releasing heat, at least one edge of the phase-change energy storage plate is provided with a positioning groove, the phase-change energy storage plates are sequentially arranged side by side, and an installation space is formed between the two oppositely arranged positioning grooves;
the heat exchanger comprises a plurality of first heat exchange flow channels, a plurality of second heat exchange flow channels and a plurality of heat exchange tubes, wherein the first heat exchange flow channels are used for conveying a first heat exchange medium;
a plurality of second heat exchange flow channels for conveying a second heat exchange medium;
the positioning assembly is provided with a plurality of positioning blocks arranged side by side, and a positioning space is formed between every two adjacent positioning blocks;
the phase change energy storage plates, the first heat exchange flow channel, the second heat exchange flow channel and the positioning assembly are positioned in the shell, the positioning blocks are positioned in the positioning grooves, and the adjacent phase change energy storage plates are clamped between the two corresponding adjacent positioning blocks; the first heat exchange flow channel and the second heat exchange flow channel are alternately arranged, the phase change energy storage plate is arranged between the first heat exchange flow channel and the second heat exchange flow channel, the first heat exchange flow channel is in heat conduction with the phase change energy storage plate in contact, and the second heat exchange flow channel is in heat conduction with the phase change energy storage plate in contact.
2. A phase change heat exchanger according to claim 1, wherein both side edges of the phase change energy storage plate are provided with the positioning grooves, respectively.
3. A phase change heat exchanger as claimed in claim 2, wherein the positioning assembly comprises:
the two ends of the first mounting component are respectively provided with the positioning blocks which are arranged side by side;
the two ends of the first mounting component are respectively provided with the positioning blocks which are arranged side by side;
the first mounting component is arranged below the phase change energy storage plate, and the second mounting component is arranged above the phase change energy storage plate.
4. The phase-change heat exchanger according to claim 3, wherein the first mounting part is a box body with an open top, and the positioning blocks arranged side by side are respectively arranged at two ends of the bottom of the box body; the second mounting part is a box cover, and the two ends of the box cover are respectively provided with the positioning blocks which are arranged side by side; the box body is provided with a plurality of phase change energy storage plates, and the box cover covers the top of the phase change energy storage plates.
5. The phase change heat exchanger according to claim 4, wherein the box body and the box cover are both made of a heat insulating material.
6. The phase change heat exchanger of claim 1, further comprising a first inlet tube, a first outlet tube, a second inlet tube, and a second outlet tube; the first heat exchange flow channel is connected between the first inlet pipe and the first outlet pipe, and the second heat exchange flow channel is connected between the second inlet pipe and the second outlet pipe.
7. A phase change heat exchanger according to claim 1, wherein a first mounting groove is provided on a first face of the phase change energy storage plate, a second mounting groove is provided on a second face of the phase change energy storage plate, the first heat exchange flow passage is provided in the first mounting groove, and the second heat exchange flow passage is provided in the second mounting groove; wherein the first face and the second face are oppositely arranged.
8. The phase change heat exchanger of claim 7, wherein the first heat exchange flow channel and the second heat exchange flow channel are both coils, and the first mounting groove and the second mounting groove are both circuitous grooves in which the coils are located.
9. The phase-change heat exchanger according to claim 7, wherein the first heat exchange flow channel and the second heat exchange flow channel are both microchannel heat exchangers, the first mounting groove and the second mounting groove are both strip-shaped grooves, and microchannel flat tubes of the microchannel heat exchangers are located in the strip-shaped grooves.
10. The phase change heat exchanger according to claim 7, wherein the first heat exchange flow passages are each a coil, and the first mounting groove is a circuitous groove; the second heat exchange runner is a micro-channel heat exchanger, the second mounting grooves are all strip-shaped grooves, and micro-channel flat tubes of the micro-channel heat exchanger are located in the strip-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010619115.4A CN111947492A (en) | 2020-07-01 | 2020-07-01 | Phase change heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010619115.4A CN111947492A (en) | 2020-07-01 | 2020-07-01 | Phase change heat exchanger |
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| CN111947492A true CN111947492A (en) | 2020-11-17 |
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| CN202010619115.4A Pending CN111947492A (en) | 2020-07-01 | 2020-07-01 | Phase change heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375493A (en) * | 2021-06-29 | 2021-09-10 | 哈尔滨工业大学 | Novel multistage plate type heat storage and exchange integrated phase change heat storage and release device |
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| CN210878300U (en) * | 2019-10-25 | 2020-06-30 | 常熟市神力机械制造有限责任公司 | Positioning plate for spiral rigid welding of surface of drum body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113375493A (en) * | 2021-06-29 | 2021-09-10 | 哈尔滨工业大学 | Novel multistage plate type heat storage and exchange integrated phase change heat storage and release device |
| CN113375493B (en) * | 2021-06-29 | 2022-02-15 | 哈尔滨工业大学 | Novel multistage plate type heat storage and exchange integrated phase change heat storage and release device |
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