CN110940103A - Constant temperature refrigerating system and storage and transportation equipment - Google Patents
Constant temperature refrigerating system and storage and transportation equipment Download PDFInfo
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- CN110940103A CN110940103A CN201911296570.9A CN201911296570A CN110940103A CN 110940103 A CN110940103 A CN 110940103A CN 201911296570 A CN201911296570 A CN 201911296570A CN 110940103 A CN110940103 A CN 110940103A
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- heat exchanger
- indoor heat
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- 238000010257 thawing Methods 0.000 claims abstract description 42
- 239000003507 refrigerant Substances 0.000 claims abstract description 32
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000005485 electric heating Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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Classifications
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- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses a constant temperature refrigeration system and storage and transportation equipment, comprising: compressor, outdoor heat exchanger, reservoir and the first indoor heat exchanger that communicate in proper order through the pipeline, with the parallelly connected second indoor heat exchanger of outdoor heat exchanger, still include: the defrosting valve assembly is used for adjusting the refrigerant flow direction of the first indoor heat exchanger to enter a defrosting mode. According to the defrosting device, the refrigerant flow direction of the first indoor heat exchanger is changed to enter a defrosting mode through the defrosting valve component, so that the high-temperature and high-pressure refrigerant flowing out of the compressor directly flows into the first indoor heat exchanger to defrost the first indoor heat exchanger, the ratio of refrigerating capacity to heating capacity is controlled through the flow regulating device, and the indoor temperature is kept constant in the defrosting operation process.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a constant-temperature refrigeration system and storage and transportation equipment.
Background
Constant temperature control of storage and transportation storage equipment in the market at present is a combined form of a cold machine and electric heating, the cold machine provides cold energy, the electric heating provides heat, cold and heat balance is carried out at a set temperature point, electric heating power consumption is large, meanwhile, a defrosting mode adopted by a refrigerating unit is an electric heating defrosting mode, the whole power consumption is large, and energy is not saved. And the temperature rises back greatly during defrosting, and the fluctuation is large. An energy-saving constant-temperature refrigeration system is designed in consideration of energy conservation and the requirement of users on stable and constant temperature of storage and transportation equipment. Firstly, energy conservation and environmental protection are realized, and the safety is improved; and secondly, the stability of the temperature of the storage and transportation equipment is improved.
Disclosure of Invention
The invention provides a constant-temperature refrigeration system and storage and transportation equipment, aiming at solving the technical problems of large temperature rise and large fluctuation during defrosting of constant-temperature storage equipment in the prior art.
The technical scheme adopted by the invention is as follows:
the invention provides a constant temperature refrigeration system, comprising: compressor, outdoor heat exchanger, reservoir and the first indoor heat exchanger that communicate in proper order through the pipeline, with the parallelly connected second indoor heat exchanger of outdoor heat exchanger, still include: the defrosting valve assembly is used for adjusting the refrigerant flow direction of the first indoor heat exchanger to enter a defrosting mode.
The flow rate adjusting device includes: and the proportion adjusting three-way valve is connected with the outlet pipeline of the compressor, the outdoor heat exchanger and the inlet pipeline of the second indoor heat exchanger.
The defrosting branch includes: the first branch is connected with the compressor outlet pipeline and the first indoor heat exchanger and close to the compressor side pipeline, the second branch is connected with the first indoor heat exchanger and far away from the compressor side pipeline and the inlet pipeline of the second indoor heat exchanger, and the third branch is connected with the compressor inlet pipeline and the liquid reservoir outlet pipeline.
The invention also comprises a temperature sensor group for detecting the indoor temperature and the surface temperature of the first indoor heat exchanger, and a controller for controlling the flow regulating device and the defrosting valve assembly to be switched on and off according to the indoor temperature and the surface temperature of the first indoor heat exchanger so as to realize constant-temperature defrosting.
The defrost valve assembly comprises: the first electromagnetic valve is arranged on the compressor inlet pipeline and located between the connection point of the first branch and the third branch, the first electric switching three-way valve is arranged on the compressor outlet pipeline and connected with the first branch, the second electromagnetic valve is arranged on the third branch, and the second electric switching three-way valve is arranged on the first indoor heat exchanger and far away from the compressor side pipeline and connected with the second branch.
The invention also includes: and the drying filter is arranged on a pipeline from the liquid storage device to the first indoor heat exchanger and is positioned between the connection points of the second branch and the third branch.
The controller switches the first electric switching three-way valve to be communicated with the first branch, disconnects the first electromagnetic valve, opens the second electromagnetic valve to be communicated with the third branch, switches the second electric switching three-way valve to be communicated with the second branch, and opens the defrosting mode.
In the defrosting mode, when the indoor temperature is higher than the preset temperature, the controller controls the opening of the proportional control three-way valve to reduce the refrigerant flow of the outdoor heat exchanger by the flow of the second indoor heat exchanger and increase the refrigerant flow.
When the indoor temperature is lower than the preset temperature, the controller controls the opening of the proportional control three-way valve to increase the refrigerant flow of the outdoor heat exchanger and reduce the flow of the second indoor heat exchanger.
And when the indoor temperature is equal to the preset temperature, the controller controls the proportional control three-way valve to maintain the current opening.
Compared with the prior art, the second indoor heat exchanger is added to be connected with the outdoor heat exchanger in parallel, so that the second indoor heat exchanger can heat and maintain the indoor constant temperature in a refrigeration cycle, the heating by electric heating is avoided, the heating efficiency is improved, meanwhile, the defrosting valve component cuts off the pipeline and the defrosting branch circuit to change the refrigerant flow direction of the first indoor heat exchanger to enter a defrosting mode, high-temperature and high-pressure refrigerant flowing out of the compressor directly flows into the first indoor heat exchanger to defrost the first indoor heat exchanger, the ratio of refrigerating capacity to heating capacity is controlled through the flow regulating device, and the indoor constant temperature is ensured to be maintained in the defrosting operation process.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a defrosting mode according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cooling mode in an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1, the present invention proposes a constant temperature refrigeration system for a refrigerator car, comprising: the air conditioner comprises a compressor 1, an outdoor heat exchanger 2, a liquid storage device 3, a first indoor heat exchanger 4, a second indoor heat exchanger 5, a flow regulating device, a defrosting branch and a defrosting valve assembly, wherein the compressor 1, the outdoor heat exchanger 2, the liquid storage device 3 and the first indoor heat exchanger 4 are sequentially communicated through pipelines, in the refrigerating operation, the first indoor heat exchanger 4 is an evaporator, the outdoor heat exchanger is a condenser, the second indoor heat exchanger 5 is connected with the outdoor heat exchanger 2 in parallel, so that the second indoor heat exchanger 5 can heat to maintain indoor constant temperature in a refrigerating cycle, electric heating temperature rise is avoided, heating efficiency is improved, the flow regulating device can regulate the refrigerant flow of the first indoor heat exchanger 4 and the second indoor heat exchanger 5, the ratio of refrigerating capacity to heating capacity is controlled to maintain indoor constant temperature, the defrosting branch is communicated with the pipelines, and the defrosting valve assembly can cut off the pipelines and the defrosting branch to change the flow direction of the first, therefore, the high-temperature and high-pressure refrigerant flowing out of the compressor directly flows into the first indoor heat exchanger to defrost the first indoor heat exchanger, and meanwhile, flow control is carried out through the flow regulating device, so that the indoor temperature is kept constant in the defrosting operation process.
In a particular embodiment, the flow regulating device comprises: three interfaces of the proportional control three-way valve 6 and the proportional control three-way valve 6 are respectively connected with an outlet pipeline of the compressor 1, and inlet pipelines of the outdoor heat exchanger 2 and the second indoor heat exchanger 5 can perform flow distribution control on the refrigerant flowing out of the outlet pipeline of the compressor 1, and control the refrigerant flow passing through the outdoor heat exchanger 2 and the second indoor heat exchanger 5, so that the refrigerating capacity and the heating capacity are controlled.
The defrosting branch specifically includes: a first branch 71, a second branch 72 and a third branch 73, wherein one end of the first branch 71 is connected with an outlet pipeline of the compressor 1 and is positioned between the three-way proportional control valve 6 and the outlet of the compressor 1, and the other end is connected with a pipeline of the first indoor heat exchanger 4 close to the compressor side; one end of the second branch 72 is connected to a pipeline of the first indoor heat exchanger 4 far away from the compressor, and the other end is connected to an inlet pipeline of the second indoor heat exchanger 5; the second branch 72 has one end connected to the inlet line of the compressor 1 and the other end connected to the outlet line of the accumulator 3.
The defrost valve assembly specifically includes: the first electromagnetic valve 81 is arranged on the inlet pipeline of the compressor 1 and positioned between the connection points of the first branch 71 and the third branch 73, the first electric switching three-way valve 82 is arranged at one end of the outlet pipeline of the compressor connected with the first branch 71, the second electromagnetic valve 83 is arranged on the third branch 73 and can break the third branch 73, and the second electric switching three-way valve 84 is arranged on the pipeline of the first indoor heat exchanger 4 far away from the compressor and connected with one end of the second branch 72. And an electronic expansion valve is further arranged on a pipeline between the second electric switching three-way valve 84 and the first indoor heat exchanger.
The invention also includes: the drying filter 9, the temperature sensor group and the controller, the temperature sensor group can detect indoor temperature and the surface temperature of the first indoor heat exchanger, the controller can receive a temperature signal sent by the temperature sensor group, the flow regulating device and the defrosting valve assembly are controlled to be switched on and off according to the indoor temperature and the surface temperature of the first indoor heat exchanger to achieve constant-temperature defrosting, and the indoor constant temperature is kept while defrosting is guaranteed. The filter-drier 9 is arranged on the line from the accumulator to the first indoor heat exchanger 4 at a position between the connection points of the second branch 72 and the third branch 73.
As shown in fig. 2 and 3, when the surface temperature of the first indoor heat exchanger 4 is lower than the preset temperature, the controller switches the first electric switching three-way valve 82 to communicate with the first branch 71, disconnects the first solenoid valve 81, opens the second solenoid valve 83 to communicate with the third branch 73, and switches the second electric switching three-way valve 84 to communicate with the second branch 72 to open the defrosting mode.
In the defrosting operation mode, high-temperature and high-pressure refrigerant gas coming out of the compressor flows to the first indoor heat exchanger through the first electric switching three-way valve, at the moment, the first indoor heat exchanger serves as a condenser, heat is released from the first indoor heat exchanger to melt a frost layer, then the refrigerant flows through the electronic expansion valve and is subjected to pipeline switching through the second electric switching three-way valve, the refrigerant flows to a pipeline of the second indoor heat exchanger and a pipeline of an outdoor heat exchanger where the proportional control three-way valve is located, the refrigerant absorbs heat in the second indoor heat exchanger and the outdoor heat exchanger, at the moment, the second indoor heat exchanger and the outdoor heat exchanger serve as evaporators, the refrigerant coming out of the second indoor heat exchanger and the outdoor heat exchanger is converged to a liquid storage device, and then returns to the compressor after passing through the second electromagnetic. The specific control conditions of the controller include the following three conditions:
when the indoor temperature is detected to be higher than the preset temperature, the controller controls the opening of the proportional control three-way valve to reduce the refrigerant flow of the outdoor heat exchanger by the flow of the second indoor heat exchanger and increase the refrigerant flow. Thereby increasing the cooling capacity of the second indoor heat exchanger and reducing the indoor temperature.
When the indoor temperature is detected to be lower than the preset temperature, the controller controls the opening of the proportional control three-way valve to increase the refrigerant flow of the outdoor heat exchanger and reduce the flow of the second indoor heat exchanger. Thereby reducing the cooling capacity of the second indoor heat exchanger and increasing the indoor temperature.
When the indoor temperature is detected to be equal to the preset temperature, the controller controls the proportion adjusting three-way valve to maintain the current opening.
In the cooling operation mode, high-temperature and high-pressure refrigerant gas coming out of the compressor flows to the proportional control three-way valve through the first electric switching three-way valve, is distributed to the outdoor heat exchanger and the second indoor heat exchanger through the proportional control three-way valve according to different flow proportions, medium-temperature and high-pressure refrigerant coming out of the outdoor heat exchanger and the second indoor heat exchanger are converged together and flows to the liquid storage device, then flows to the second electric switching three-way valve through the drying filter, flows to the electronic expansion valve through the pipeline switching, enters the first indoor heat exchanger to absorb heat to become low-temperature and low-pressure refrigerant gas, then flows to the first electromagnetic valve, and finally enters the compressor to be compressed to become high-temperature and high-. The specific control conditions of the controller include the following three conditions:
when the indoor temperature is detected to be lower than the preset temperature, the controller controls the opening of the proportional control three-way valve to reduce the refrigerant flow of the outdoor heat exchanger by the flow of the second indoor heat exchanger and increase the refrigerant flow.
When the indoor temperature is detected to be higher than the preset temperature, the controller controls the opening of the proportional control three-way valve to increase the refrigerant flow of the outdoor heat exchanger and reduce the flow of the second indoor heat exchanger.
When the indoor temperature is detected to be equal to the preset temperature, the controller controls the proportion adjusting three-way valve to maintain the current opening.
The invention also provides storage and transportation equipment which can be a constant-temperature refrigerator car for transporting vegetable and food by using the constant-temperature refrigeration system.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. A constant temperature refrigeration system comprising: compressor (1), outdoor heat exchanger (2), reservoir (3) and first indoor heat exchanger (4) that communicate in proper order through the pipeline, with the parallelly connected second indoor heat exchanger (5) of outdoor heat exchanger (2), its characterized in that still includes: the defrosting valve assembly comprises a flow regulating device for regulating the refrigerant flow of the first indoor heat exchanger (4) and the second indoor heat exchanger (5) to maintain indoor constant temperature, a defrosting branch communicated with the pipeline, a cut-off pipeline and a defrosting branch to change the refrigerant flow direction of the first indoor heat exchanger to enter a defrosting mode.
2. A thermostatic refrigeration system as set forth in claim 1 wherein said flow regulating device comprises: and the proportion adjusting three-way valve (6), and the proportion adjusting three-way valve (6) is connected with an outlet pipeline of the compressor, an inlet pipeline of the outdoor heat exchanger and an inlet pipeline of the second indoor heat exchanger.
3. The thermostatic refrigeration system of claim 1 wherein the defrost branch comprises: the first branch (71) is connected with the compressor outlet pipeline and is close to the compressor side pipeline of the first indoor heat exchanger, the second branch (72) is connected with the inlet pipeline of the first indoor heat exchanger, which is far away from the compressor side pipeline and the second indoor heat exchanger, and the third branch (73) is connected with the compressor inlet pipeline and the liquid storage device outlet pipeline.
4. The thermostatic cooling system of claim 3 further comprising a temperature sensor set for sensing the temperature of the interior of the chamber and the temperature of the surface of the first indoor heat exchanger, and a controller for controlling the flow regulating device and the defrost valve assembly to open and close to effect thermostatic defrosting based on the temperature of the interior of the chamber and the temperature of the surface of the first indoor heat exchanger.
5. The thermostatic refrigeration system of claim 4 wherein the defrost valve assembly comprises: the air conditioner comprises a first electromagnetic valve (81) arranged on a compressor inlet pipeline and positioned between connection points of a first branch (71) and a third branch (73), a first electric switching three-way valve (82) arranged on an outlet pipeline of the compressor (1) and connected with the first branch, a second electromagnetic valve (83) arranged on the third branch (73), and a second electric switching three-way valve (84) arranged on a pipeline of the first indoor heat exchanger (4) far away from the compressor and connected with the second branch (72).
6. A constant temperature refrigeration system as set forth in claim 3, further comprising: and the drying filter (9) is arranged on a pipeline from the reservoir (3) to the first indoor heat exchanger (4) and is positioned between the connection points of the second branch (72) and the third branch (73).
7. The constant-temperature refrigeration system as claimed in claim 5, characterized in that the controller switches the first electrically-operated switching three-way valve (82) to communicate with the first branch (71), disconnects the first solenoid valve (81), opens the second solenoid valve (83) to communicate with the third branch (73), switches the second electrically-operated switching three-way valve (84) to communicate with the second branch (72) to open the defrosting mode.
8. The constant-temperature refrigerating system as claimed in claim 5, wherein in the defrosting mode of operation, when the indoor temperature is higher than the preset temperature, the controller controls the opening of the proportional adjustment three-way valve (6) to reduce the refrigerant flow of the outdoor heat exchanger (2) by the flow of the second indoor heat exchanger (5) and increase the refrigerant flow.
9. The constant-temperature refrigerating system according to claim 5, wherein in the defrosting mode of operation, when the indoor temperature is lower than the preset temperature, the controller controls the opening of the proportional adjustment three-way valve (6) to increase the refrigerant flow of the outdoor heat exchanger (2) and decrease the flow of the second indoor heat exchanger (5).
10. The constant-temperature refrigerating system according to claim 5, wherein the controller controls the proportional adjustment three-way valve (6) to maintain the current opening degree when the indoor temperature is equal to a preset temperature.
11. Storage and transportation equipment, characterized in that a constant temperature refrigeration system according to any of claims 1 to 10 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296570.9A CN110940103A (en) | 2019-12-16 | 2019-12-16 | Constant temperature refrigerating system and storage and transportation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296570.9A CN110940103A (en) | 2019-12-16 | 2019-12-16 | Constant temperature refrigerating system and storage and transportation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110940103A true CN110940103A (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911296570.9A Pending CN110940103A (en) | 2019-12-16 | 2019-12-16 | Constant temperature refrigerating system and storage and transportation equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN110940103A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735263A (en) * | 2020-07-23 | 2020-10-02 | 珠海格力电器股份有限公司 | Refrigeration system, storage room and temperature adjusting method thereof |
| CN112153878A (en) * | 2020-10-22 | 2020-12-29 | 苏州浪潮智能科技有限公司 | Pipeline device for switching liquid cooling pipes in series-parallel connection, heat dissipation system and switching method |
| CN114440496A (en) * | 2022-01-26 | 2022-05-06 | 同济大学 | Air conditioner floor heating two-combined air source heat pump system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735263A (en) * | 2020-07-23 | 2020-10-02 | 珠海格力电器股份有限公司 | Refrigeration system, storage room and temperature adjusting method thereof |
| CN111735263B (en) * | 2020-07-23 | 2024-02-13 | 珠海格力电器股份有限公司 | Refrigerating system, storage and temperature adjusting method thereof |
| CN112153878A (en) * | 2020-10-22 | 2020-12-29 | 苏州浪潮智能科技有限公司 | Pipeline device for switching liquid cooling pipes in series-parallel connection, heat dissipation system and switching method |
| CN112153878B (en) * | 2020-10-22 | 2022-06-21 | 苏州浪潮智能科技有限公司 | Pipeline device for switching liquid cooling pipes in series-parallel connection, heat dissipation system and switching method |
| CN114440496A (en) * | 2022-01-26 | 2022-05-06 | 同济大学 | Air conditioner floor heating two-combined air source heat pump system |
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