CN113669947A - Phase-change heat storage type heat pump system - Google Patents
Phase-change heat storage type heat pump system Download PDFInfo
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- CN113669947A CN113669947A CN202010402536.1A CN202010402536A CN113669947A CN 113669947 A CN113669947 A CN 113669947A CN 202010402536 A CN202010402536 A CN 202010402536A CN 113669947 A CN113669947 A CN 113669947A
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- Prior art keywords
- phase
- heat
- change
- heat exchanger
- pump system
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- 238000005338 heat storage Methods 0.000 title claims abstract description 9
- 239000003507 refrigerant Substances 0.000 claims abstract description 51
- 238000004146 energy storage Methods 0.000 claims description 34
- 230000001172 regenerating effect Effects 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000005516 engineering process Methods 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
- 239000012782 phase change material Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 229940087562 sodium acetate trihydrate Drugs 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
-
- 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-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a phase-change heat accumulating type heat pump system, which comprises: a compressor; the heat exchanger is used for exchanging heat between the refrigerant and the outside air; the phase-change heat exchanger is provided with a refrigerant flow channel, a heat exchange flow channel and a phase-change part, and the phase-change part is positioned between the refrigerant flow channel and the heat exchange flow channel; the compressor, the heat exchanger, the throttling device and the refrigerant flow channel are connected to form a refrigerant loop. The invention adopts the phase change heat exchanger to store energy and reduce the frequency of starting and stopping the compressor, thereby realizing the reduction of the energy consumption of the phase change heat storage type heat pump system and improving the use reliability of the phase change heat storage type heat pump system.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a phase-change heat accumulating type heat pump system.
Background
At present, a heat pump technology is widely popularized and used due to high efficiency, and a phase-change heat storage type heat pump system adopting the heat pump technology generally comprises a heat pump water heater, a heat pump heating system and the like. And conventional phase change heat accumulation formula heat pump system includes heat pump set and heat transfer module usually, wherein, includes parts such as compressor and outdoor heat exchanger in the heat pump set, and heat transfer module then disposes heat exchanger and corresponding functional unit, specifically is: the heat pump water heater is provided with a heat exchanger on a water tank to meet the requirement of domestic hot water supply, and a heating system exchanges heat and heats water in a radiator through the heat exchanger.
In the operation process of the phase-change heat storage type heat pump system, when the temperature of domestic hot water or the temperature of heating reaches a set temperature, the compressor stops operating, and when the temperature is lower than the set temperature, the compressor needs to be restarted to operate. Therefore, in the actual use process, the compressor is easily damaged due to frequent start and stop of the compressor, and the energy consumption is increased due to frequent start and stop of the compressor.
In view of this, how to design a heat pump technology with low energy consumption and high operation reliability is a technical problem to be solved by the present invention.
Disclosure of Invention
The invention provides a phase-change heat accumulating type heat pump system, which adopts a phase-change heat exchanger to store energy and reduce the frequency of starting and stopping a compressor so as to reduce the energy consumption of the heat pump system and improve the use reliability of the heat pump system.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a phase change regenerative heat pump system comprising:
a compressor;
the heat exchanger is used for exchanging heat between the refrigerant and the outside air;
the phase-change heat exchanger is provided with a refrigerant flow channel, a heat exchange flow channel and a phase-change part, and the phase-change part is positioned between the refrigerant flow channel and the heat exchange flow channel;
the compressor, the heat exchanger, the throttling device and the refrigerant flow channel are connected to form a refrigerant loop.
Further, the phase change heat exchanger further comprises:
a housing;
the phase change energy storage plate is arranged in the shell and is respectively in heat conduction with the refrigerant flow channel and the heat exchange flow channel; wherein, the phase change energy storage plate is the phase change component.
Furthermore, the refrigerant channel comprises a plurality of microchannel heat exchangers, a first inlet pipe and a first outlet pipe, and the microchannel heat exchangers are connected between the first inlet pipe and the first outlet pipe;
the heat exchange flow channel comprises a plurality of heat exchange tubes, a second inlet tube and a second outlet tube, and the microchannel heat exchanger is connected between the first inlet tube and the first outlet tube;
the microchannel heat exchanger and the heat exchange tubes are alternately arranged, and the phase change energy storage plate is arranged between the microchannel heat exchanger and the heat exchange tubes.
Further, the heat exchange tube is of a serpentine coil structure.
Furthermore, the first surface of the phase change energy storage plate is used for installing the micro-channel heat exchanger, the second surface of the phase change energy storage plate is used for installing the heat exchange tube, and the first surface and the second surface are arranged in a back-to-back mode.
Furthermore, a first mounting groove is formed in the first surface, and a micro-channel flat tube of the micro-channel heat exchanger is located in the first mounting groove; and a second mounting groove is formed in the second surface, and the heat exchange tube is positioned in the second mounting groove.
Furthermore, a third mounting groove is further formed in the edge of the first surface, and a collecting pipe of the micro-channel heat exchanger is located in the third mounting groove.
Furthermore, the two sides of the micro-channel heat exchanger are provided with the phase change energy storage plates.
Furthermore, the two sides of the heat exchange tube are provided with the phase change energy storage plates.
Furthermore, the inner wall of the shell is provided with a heat insulation layer.
Compared with the prior art, the invention has the advantages and positive effects that: realize carrying out the heat transfer with external circulation water route through configuration phase change heat exchanger, the compressor starts the back, the refrigerant flows into the refrigerant runner and carries out the heat transfer with the heat transfer medium in the heat transfer runner, the refrigerant in the refrigerant runner lies in the heat transfer medium when carrying out the heat exchange, the refrigerant still further with the heat transfer of phase change unit, and phase change unit can a large amount of heats of effectual storage, thus, under the compressor shut down condition, can heat the heat transfer medium in the heat transfer runner through phase change unit release heat, and then reduce the number of times that the compressor opened and stops, in order to realize reducing the energy consumption of phase change heat accumulation formula heat pump system, and improve phase change heat accumulation formula heat pump system's use reliability.
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 structural diagram of a phase-change heat storage type heat pump system according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the phase change heat exchanger shown in FIG. 1;
FIG. 3 is a schematic view of the phase change heat exchanger of FIG. 2 with the housing removed;
FIG. 4 is a cross-sectional view of the phase change heat exchanger of FIG. 3;
FIG. 5 is a partial exploded view of the phase change heat exchanger of FIG. 2;
FIG. 6 is a schematic structural view of the phase change energy storage plate shown in FIG. 2;
fig. 7 is a second schematic structural view of the phase change energy storage plate in fig. 2.
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.
In a first embodiment, as shown in fig. 1, the present embodiment provides a phase-change regenerative heat pump system, including: a compressor 1, a heat exchanger 2 and a phase change heat exchanger 3. The heat exchanger 2 is used for exchanging heat between a refrigerant and outside air, and has an outdoor heat exchange function. The phase change heat exchanger 3 is provided with a refrigerant flow passage 31, a heat exchange flow passage 32 and a phase change part 33, and the phase change part 33 is positioned between the refrigerant flow passage 31 and the heat exchange flow passage 32; the compressor 1, the heat exchanger 2, a throttle device (not labeled) and the refrigerant flow passage 31 are connected to form a refrigerant circuit.
In the actual use process, the heat exchange flow channel 32 is connected to a heat sink (such as a heat sink or a floor heater) in the home of the user. The compressor 1 is started to drive the refrigerant to circularly flow in the refrigerant loop, and the refrigerant exchanges heat with a heat exchange medium (for example, heat exchange fluid such as water or heat exchange oil) flowing in the heat exchange channel 32 through the refrigerant channel 31.
The refrigerant flows through the refrigerant channel 31, the heat released by the refrigerant is absorbed by the phase change component 33 at the same time, and more heat can be stored by utilizing the phase change characteristic of the phase change component 33, so that the heat exchange requirement of the heat exchange medium in the heat exchange channel 32 is met.
In the operation process of the compressor 1, the phase change part 33 can absorb more heat and store the heat, so that the heat of the heat exchange medium in the heat exchange channel 32 is maintained to be heated for a long time by the heat released by the phase change part 33 when the compressor 1 is in a shutdown state, and thus the compressor 1 can be started or stopped frequently without reducing energy consumption, and meanwhile, the service life of the compressor 1 can be prolonged, and the service reliability can be improved.
Regarding the refrigerant loop formed by the connection of the compressor 1, the heat exchanger 2, the throttling device and the refrigerant channel 31, the specific flow manner of the refrigerant may refer to the refrigerant flow manner in the conventional heat pump system, and is not limited or described herein.
In one embodiment, in order to satisfy the supply requirements of hot water for heating and hot water for life at the same time, two heat exchange flow passages 32 are provided in the phase-change heat exchanger 3, wherein one of the heat exchange flow passages 32 is connected to a radiator in the home of the user to satisfy the requirements of hot water for heating. The other heat exchange flow passage 32 is connected with a water tap in the home of the user so as to meet the requirement of domestic hot water of the user.
In certain embodiments, to facilitate assembly of the phase change heat exchanger 3, the phase change heat exchanger 3 is typically configured with an outer shell 30. Correspondingly, the phase change part 33, the refrigerant channel 31 and the heat exchange channel 32 are all located in the housing 30. The shell 30 may be used to install the phase change unit 33, the refrigerant channel 31 and the heat exchange channel 32, and may also be used to protect the phase change unit 33, the refrigerant channel 31 and the heat exchange channel 32. In order to improve the heat insulating performance, a heat insulating layer (not shown) is provided on the inner wall of the casing 30 to improve the heat insulating performance of the casing 30.
Meanwhile, the first external port 301 of the refrigerant channel 31 and the second external port 302 of the heat exchange channel 32 are exposed outside the housing 30, so as to facilitate connection with external pipelines.
The concrete entity of the phase change element 33 can be in various forms, such as: the phase change element 33 may be a phase change material filled in the housing 30, and the phase change material may change phase in the housing 30 around its phase change temperature, thereby absorbing or releasing a large amount of heat.
In a preferred embodiment, the phase change element 33 is a phase change energy storage plate, and the phase change energy storage plate may be made of sodium acetate trihydrate and other materials, for example: and pressing the powdery sodium acetate trihydrate to form a plate-shaped structure so as to obtain the phase change energy storage plate. The phase change energy storage plate 33 is disposed in the housing 30 and is thermally conductive to the refrigerant flow passage 31 and the heat exchange flow passage 32, respectively.
In the actual assembling process, the refrigerant channel 31 and the heat exchange channel 32 are separated by the phase change energy storage plate, the heat released by the refrigerant channel 31 is firstly transferred to the phase change energy storage plate, on one hand, the heat released by the refrigerant channel 31 is absorbed by the phase change energy storage plate, and on the other hand, the heat released by the refrigerant channel 31 indirectly heats the heat exchange channel 32 through the phase change energy storage plate. When the heat exchange medium in the refrigerant channel 31 does not flow, the heat exchange medium in the heat exchange channel 32 is continuously heated by heat release of the phase change energy storage plate.
In the second embodiment, in order to more effectively improve the heat exchange efficiency, as shown in fig. 2 to 7, the refrigerant channel 31 includes a plurality of microchannel heat exchangers 311, a first inlet pipe 312 and a first outlet pipe 313, and the microchannel heat exchangers 311 are connected between the first inlet pipe 312 and the first outlet pipe 313; similarly, the heat exchange flow channel 32 includes a plurality of heat exchange tubes 321, a second inlet tube 322 and a second outlet tube 323, and the heat exchange tubes 321 are connected between the second inlet tube 322 and the second outlet tube 323; the microchannel heat exchanger 311 and the heat exchange tube 321 are alternately arranged, and a phase change energy storage plate 33 is arranged between the microchannel heat exchanger 311 and the heat exchange tube 321. In addition, the ports of the first inlet pipe 312 and the first outlet pipe 313 extending out of the housing 30 form a first external port 301, and the ports of the second inlet pipe 322 and the second outlet pipe 323 extending out of the housing 30 form a second external port 302.
Specifically, in the actual assembly process, the adjacent microchannel heat exchanger 311 and the heat exchange tube 321 are spaced by the phase change energy storage plate 33, so that the microchannel heat exchanger 311, the phase change energy storage plate 33 and the heat exchange tube 321 form a unit, and the multiple units are correspondingly attached together in sequence to form a module, thereby realizing efficient and sufficient heat exchange and improving the heat exchange efficiency.
In some embodiments, in order to facilitate accurate assembly, a first surface of the phase change energy storage plate 33 is used for mounting the microchannel heat exchanger 311, a second surface of the phase change energy storage plate 33 is used for mounting the heat exchange tube 321, the first surface is provided with a first mounting groove 331, the microchannel heat exchanger 311 is located in the first mounting groove 331, the second surface is provided with a second mounting groove 332, and the heat exchange tube 321 is located in the second mounting groove 332; wherein the first face and the second face are oppositely arranged.
In an actual assembling process, an operator positions and installs the microchannel flat tube 3111 of the microchannel heat exchanger 311 through the first installation groove 331, and similarly positions and installs the heat exchange tube 321 through the second installation groove 332. Taking the micro-channel heat exchanger 311 as an example, the micro-channel heat exchanger 311 is placed in the first mounting recess 331, and in order to improve the heat conduction efficiency and the assembling reliability, a heat-conducting glue may be further applied in the first mounting recess 331, so as to more firmly position and mount the micro-channel heat exchanger 311 through the heat-conducting glue, and at the same time, improve the heat conduction efficiency between the micro-channel heat exchanger 311 and the phase change energy storage plate 33.
In another embodiment, the heat exchanging pipe 321 may adopt a serpentine coil structure to increase a contact heat exchanging area, which is more beneficial to improve heat exchanging efficiency.
In one embodiment, in order to facilitate the installation of the microchannel heat exchanger 311, a third installation groove 333 is further disposed on the edge of the first surface, and the collecting pipe 3112 of the microchannel heat exchanger 311 is located in the third installation groove 333. Specifically, since the pipe diameter of the collecting pipe 3112 of the micro-channel heat exchanger 311 is much larger than the thickness of the micro-channel flat pipe 3111, in order to meet the design requirement of the phase change heat exchanger 3 for compact structure, the third mounting groove 333 is formed at the edge of the first surface of the phase change member 33 to mount and receive the collecting pipe 3112, so that the overall structure is more compact.
In some embodiments, in order to improve the energy storage capacity, phase change energy storage plates 33 are disposed on both sides of the microchannel heat exchanger 311; similarly, phase change energy storage plates 33 are disposed on both sides of the heat exchange pipe 321.
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 regenerative heat pump system, comprising:
a compressor;
the heat exchanger is used for exchanging heat between the refrigerant and the outside air;
the phase-change heat exchanger is provided with a refrigerant flow channel, a heat exchange flow channel and a phase-change part, and the phase-change part is positioned between the refrigerant flow channel and the heat exchange flow channel;
the compressor, the heat exchanger, the throttling device and the refrigerant flow channel are connected to form a refrigerant loop.
2. The phase-change regenerative heat pump system according to claim 1, wherein the phase-change heat exchanger further comprises:
a housing;
the phase change energy storage plate is arranged in the shell and is respectively in heat conduction with the refrigerant flow channel and the heat exchange flow channel; wherein, the phase change energy storage plate is the phase change component.
3. The phase-change regenerative heat pump system according to claim 2, wherein the refrigerant channel comprises a plurality of microchannel heat exchangers, a first inlet pipe and a first outlet pipe, the microchannel heat exchangers being connected between the first inlet pipe and the first outlet pipe;
the heat exchange flow channel comprises a plurality of heat exchange tubes, a second inlet tube and a second outlet tube, and the microchannel heat exchanger is connected between the first inlet tube and the first outlet tube;
the microchannel heat exchanger and the heat exchange tubes are alternately arranged, and the phase change energy storage plate is arranged between the microchannel heat exchanger and the heat exchange tubes.
4. The phase-change regenerative heat pump system according to claim 3, wherein the heat exchange tubes are of a serpentine coil structure.
5. The phase-change regenerative heat pump system according to claim 3, wherein a first surface of the phase-change energy storage plate is used for mounting the microchannel heat exchanger, a second surface of the phase-change energy storage plate is used for mounting the heat exchange tube, and the first surface and the second surface are oppositely arranged.
6. The phase-change heat storage type heat pump system according to claim 5, wherein a first mounting groove is formed in the first surface, and the microchannel flat tube of the microchannel heat exchanger is located in the first mounting groove; and a second mounting groove is formed in the second surface, and the heat exchange tube is positioned in the second mounting groove.
7. The phase-change regenerative heat pump system according to claim 5, wherein a third mounting groove is further formed in an edge of the first surface, and a header of the microchannel heat exchanger is located in the third mounting groove.
8. The phase-change regenerative heat pump system according to claim 3, wherein the phase-change energy storage plates are disposed on both sides of the microchannel heat exchanger.
9. The phase-change heat storage type heat pump system according to claim 3, wherein the phase-change energy storage plates are arranged on both sides of the heat exchange pipe.
10. The phase change regenerative heat pump system according to claim 2, wherein an inner wall of the case is provided with an insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010402536.1A CN113669947A (en) | 2020-05-13 | 2020-05-13 | Phase-change heat storage type heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010402536.1A CN113669947A (en) | 2020-05-13 | 2020-05-13 | Phase-change heat storage type heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113669947A true CN113669947A (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010402536.1A Pending CN113669947A (en) | 2020-05-13 | 2020-05-13 | Phase-change heat storage type heat pump system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185664A1 (en) * | 2022-04-02 | 2023-10-05 | 丹佛斯有限公司 | Air conditioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111042A1 (en) * | 2005-04-20 | 2006-10-26 | Starford International Holdings Limited | A moderate temperature heat storage material, a heat storage element and a heat accumulating and releasing device |
| CN101078548A (en) * | 2007-07-05 | 2007-11-28 | 河北工业大学 | Heat/cold storage type fresh air purifying temperature-regulating combined machine |
| CN101625148A (en) * | 2009-07-06 | 2010-01-13 | 宁波市万泓电器科技有限公司 | Liquid-heating unit |
| JP2010043864A (en) * | 2009-11-27 | 2010-02-25 | Panasonic Corp | Heat pump heat storage device |
| CN108225080A (en) * | 2018-01-31 | 2018-06-29 | 华南理工大学 | A kind of coiled pipe regenerative heat exchanger |
-
2020
- 2020-05-13 CN CN202010402536.1A patent/CN113669947A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111042A1 (en) * | 2005-04-20 | 2006-10-26 | Starford International Holdings Limited | A moderate temperature heat storage material, a heat storage element and a heat accumulating and releasing device |
| CN101078548A (en) * | 2007-07-05 | 2007-11-28 | 河北工业大学 | Heat/cold storage type fresh air purifying temperature-regulating combined machine |
| CN101625148A (en) * | 2009-07-06 | 2010-01-13 | 宁波市万泓电器科技有限公司 | Liquid-heating unit |
| JP2010043864A (en) * | 2009-11-27 | 2010-02-25 | Panasonic Corp | Heat pump heat storage device |
| CN108225080A (en) * | 2018-01-31 | 2018-06-29 | 华南理工大学 | A kind of coiled pipe regenerative heat exchanger |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023185664A1 (en) * | 2022-04-02 | 2023-10-05 | 丹佛斯有限公司 | Air conditioning system |
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Application publication date: 20211119 |
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