CN116412564A - Refrigerating system, refrigerating equipment and refrigerating defrosting method of refrigerating equipment - Google Patents

Refrigerating system, refrigerating equipment and refrigerating defrosting method of refrigerating equipment Download PDF

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Publication number
CN116412564A
CN116412564A CN202111636822.5A CN202111636822A CN116412564A CN 116412564 A CN116412564 A CN 116412564A CN 202111636822 A CN202111636822 A CN 202111636822A CN 116412564 A CN116412564 A CN 116412564A
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CN
China
Prior art keywords
heat exchanger
refrigeration
compartment
refrigerating
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111636822.5A
Other languages
Chinese (zh)
Inventor
邵杰
张欢
杨发林
苏广义
闫家文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN202111636822.5A priority Critical patent/CN116412564A/en
Publication of CN116412564A publication Critical patent/CN116412564A/en
Pending legal-status Critical Current

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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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • 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
    • F25B41/40—Fluid line arrangements
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors

Abstract

The invention particularly relates to a refrigerating system, refrigerating equipment and a refrigerating defrosting method of the refrigerating equipment, wherein the refrigerating system comprises a compressor, a condenser, a capillary tube and an evaporator which form a first refrigerating loop, a first heat exchanger arranged close to the evaporator, a second heat exchanger arranged close to the condenser and a compartment heat exchanger. The first heat exchanger and the second heat exchanger are respectively connected with the compartment heat exchanger in parallel to form a second refrigeration heat pipe loop and a defrosting heat pipe loop. According to the refrigerating system, the refrigerating equipment and the refrigerating defrosting method of the refrigerating equipment, the first heat exchanger, the second heat exchanger and the compartment heat exchanger are utilized to realize the switching between refrigeration and defrosting, so that the waste heat of the condenser can be effectively utilized, the power consumption is reduced, meanwhile, the temperature rise of the compartment of the refrigerator is small during defrosting, the food preservation is facilitated, and the refrigerating system has the advantages of safety, stability, energy conservation and high efficiency.

Description

Refrigerating system, refrigerating equipment and refrigerating defrosting method of refrigerating equipment
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigeration system, refrigeration equipment and a refrigeration defrosting method of the refrigeration equipment.
Background
Refrigerators are a kind of refrigerating apparatus that maintains a constant low temperature, and also a kind of civil products that maintain foods or other objects in a constant low temperature cold state. The air cooling technology is used for refrigerating air flowing through a built-in hidden cooler (such as an evaporator of a refrigerant circulating system), and forced cold air to circulate through a fan, so that the cold air is uniformly distributed in each compartment of the refrigerator, and refrigeration is realized. In the use process of the refrigerator, the surface of the evaporator has frosting phenomena of different degrees, if defrosting treatment is not timely carried out, the thickness of the frost layer on the surface of the evaporator can be gradually increased, so that the circulation speed of air flow between the air inlet and the air outlet of the evaporator can be smaller and smaller, the air flow circulation is not smooth, the refrigerating capacity is reduced, and the working efficiency of the refrigerator is lowered.
At present, defrosting of an air-cooled refrigerator is realized mainly through heating of defrosting heating wires. The defrosting through defrosting heater strip can increase power consumption, and the during operation of heater strip can cause refrigerator compartment temperature to rise relatively fast simultaneously, is unfavorable for food fresh-keeping to the heater strip needs the circular telegram operation, has the potential safety hazard. Therefore, there is a need to study a refrigeration system, a refrigeration apparatus, and a refrigeration defrosting method of the refrigeration apparatus to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a safe, stable, energy-saving and efficient refrigerating system.
In order to achieve the above object, an embodiment of the present invention provides a refrigeration system including a compressor, a condenser, a capillary tube, and an evaporator that constitute a first refrigeration circuit, the refrigeration system further including a first heat exchanger disposed adjacent to the evaporator, a second heat exchanger disposed adjacent to the condenser, and a compartment heat exchanger; the first heat exchanger and the second heat exchanger are respectively connected with the room heat exchanger in parallel to form a second refrigeration heat pipe loop and a defrosting heat pipe loop.
As a further improvement of an embodiment of the present invention, the refrigeration system further includes a pump connected in series with the inter-chamber heat exchangers, wherein the first heat exchanger and the second heat exchanger are connected in parallel to a branch formed by the pump and the inter-chamber heat exchangers, and the number of the pumps is set corresponding to the number of the inter-chamber heat exchangers.
As a further improvement of an embodiment of the present invention, the refrigeration system further includes a first valve connected between the first heat exchanger and the pump, and a second valve connected between the second heat exchanger and the pump, wherein the first heat exchanger, the first valve, the pump, and the inter-chamber heat exchanger are sequentially connected to form the second refrigeration heat pipe loop, the second heat exchanger, the second valve, the pump, and the inter-chamber heat exchanger are sequentially connected to form the defrosting heat pipe loop, and the number of the first valves and the number of the second valves are set corresponding to the number of the pumps.
As a further improvement of an embodiment of the present invention, the first heat exchanger, the second heat exchanger and the compartment heat exchanger are all provided as a dividing wall type heat pipe heat exchanger.
As a further improvement of an embodiment of the present invention, the refrigeration system further includes a dew removing pipe, a dry filter connected between the condenser and the capillary tube, and a liquid storage bag connected between the evaporator and the compressor, wherein the compressor, the condenser, the dew removing pipe, the dry filter, the capillary tube, the evaporator, and the liquid storage bag are sequentially connected to form a first refrigeration circuit.
The invention adopts another technical scheme that:
a refrigeration appliance comprising a plurality of refrigeration compartments, the refrigeration appliance further comprising a refrigeration system as described above.
As a further improvement of an embodiment of the present invention, the number of the compartment heat exchangers is set corresponding to the number of the refrigerating compartments, and a plurality of branches formed by the compartment heat exchangers are connected in parallel between the first heat exchanger and the second heat exchanger.
As a further improvement of an embodiment of the invention, the refrigeration apparatus further comprises a fan arranged close to the compartment heat exchanger, wherein the compartment heat exchanger is arranged in the refrigeration compartment.
As a further improvement of an embodiment of the invention, the refrigeration equipment further comprises a mounting cavity for placing the first refrigeration circuit, wherein the mounting cavity is provided with an interface for docking.
In order to solve the technical problems, the following also provides a refrigeration defrosting method of the refrigeration equipment.
A method of refrigerating defrosting a refrigeration unit as hereinbefore described comprising the steps of:
acquiring a signal of the refrigerating compartment needing to be refrigerated, when the signal of the refrigerating compartment needing to be refrigerated is acquired, communicating a first refrigerating loop and a first heat exchanger and a compartment heat exchanger arranged corresponding to the refrigerating compartment, and simultaneously disconnecting the second heat exchanger and the compartment heat exchanger;
and when the signal of the refrigeration equipment for defrosting is obtained, the first refrigeration loop is communicated, the second heat exchanger is communicated with the compartment heat exchanger which is arranged corresponding to the refrigeration compartment, and meanwhile, the connection between the first heat exchanger and the compartment heat exchanger is disconnected.
Compared with the prior art, the invention has the beneficial effects that: according to the refrigerating system, the refrigerating equipment and the refrigerating defrosting method of the refrigerating equipment, the first heat exchanger, the second heat exchanger and the compartment heat exchanger are utilized to realize the switching between refrigeration and defrosting, when refrigeration is needed, the first heat exchanger is controlled to be communicated with the compartment heat exchanger, and the second refrigerating heat pipe loop is used for transmitting cold energy into a compartment needing refrigeration, so that refrigeration is realized; when defrosting is needed, the second heat exchanger is controlled to be communicated with the inter-room heat exchanger, and defrosting of the inter-room heat exchanger is achieved by utilizing heat of the condenser; the waste heat of the condenser can be effectively utilized, the power consumption is reduced, the chamber temperature of the refrigeration equipment rises less during defrosting, food preservation is facilitated, and the potential safety hazard of the energizing work of the heating wire is reduced. Has the advantages of safety, stability, energy conservation and high efficiency.
Drawings
FIG. 1 is a schematic diagram of the structural components of a refrigeration system of the present invention;
FIG. 2 is a schematic diagram of a parallel connection of the two groups of heat exchangers of the refrigeration system of the present invention;
fig. 3 is a schematic structural view of the refrigeration apparatus of the present invention.
In the figure: 1. a refrigeration system; 11. a compressor; 12. a condenser; 13. a dew removing pipe; 14. drying the filter; 15. a capillary tube; 16. an evaporator; 17. a liquid storage bag; 2. a first heat exchanger; 3. a second heat exchanger; 4. a compartment heat exchanger; 5. a pump; 6. a blower; 71. a first valve; 72. a second valve; 8. a mounting cavity.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
The terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The refrigerating equipment includes a refrigerator, a freezer, a wine cabinet, etc.
The refrigeration appliance comprises a refrigeration compartment, a refrigeration system 1 for providing a cooling effect to the refrigeration compartment, the refrigeration system 1 being operable to provide a cooling effect to the interior of the refrigeration compartment and/or the temperature change compartment and/or the freezer compartment. The air-cooled refrigeration device comprises a refrigeration system 1 and a fan 6.
As shown in connection with fig. 1, in this embodiment, the present invention mainly relates to: a refrigeration system 1 includes a compressor 11, a condenser 12, a capillary tube 15, and an evaporator 16 that constitute a first refrigeration circuit.
The refrigeration system 1 further comprises a first heat exchanger 2 arranged close to the evaporator 16, a second heat exchanger 3 arranged close to the condenser 12 and a compartment heat exchanger 4. Preferably, the first heat exchanger 2 is in contact with the evaporator 16 and the second heat exchanger 3 is in contact with the condenser 12. The compartment heat exchanger 4 and the second heat exchanger 3 are connected in parallel between two ends of the first heat exchanger 2, and the first heat exchanger 2 and the second heat exchanger 3 respectively form a second refrigeration heat pipe loop and a defrosting heat pipe loop with the compartment heat exchanger 4.
Specifically, the first heat exchanger 2 and the compartment heat exchanger 4 are connected to form a second refrigeration heat pipe loop, the first heat exchanger 2 absorbs the cold of the evaporator 16 to be condensed into liquid, and the heat exchange refrigerant in the liquid state enters the compartment heat exchanger 4, so that the compartment heat exchanger 4 emits the cold, and the purpose of refrigerating the refrigerator is achieved.
Further, the second heat exchanger 3 and the chamber heat exchanger 4 are connected to form a defrosting heat pipe loop. The heat exchange refrigerant absorbs the heat of the condenser 12 in the second heat exchanger 3 and evaporates into a gaseous heat exchange refrigerant, and the gaseous heat exchange refrigerant emits heat through the inter-chamber heat exchanger 4, so that the purpose of defrosting the inter-chamber heat exchanger 4 is achieved. When the compartment heat exchanger 4 is used for defrosting, high-temperature liquid is positioned in the tube of the compartment heat exchanger 4, and the temperature rise of the compartment is small during defrosting, so that the food preservation is facilitated.
Preferably, the refrigeration system 1 further comprises a pump 5 connected in series with the compartment heat exchangers 4, wherein the first heat exchanger 2 and the second heat exchanger 3 are connected in parallel on a branch formed by the pump 5 and the compartment heat exchangers 4 to form a power type heat pipe driven by the pump, and the number of the pumps 5 is arranged corresponding to the number of the compartment heat exchangers 4. The heat exchange refrigerant is pumped by the pump 5, so that the restriction of the height difference and the position of the compartment heat exchanger 4 can be avoided, and the reliability and the stability of the heat exchange of the compartment heat exchanger 4 are improved.
The pump 5 in this embodiment may be a water-air dual-purpose pump, which is a micro water pump that can pump water or air. When the water-air dual-purpose pump is in the second refrigerating heat pipe loop, the water-air dual-purpose pump pumps the heat exchange refrigerant liquid in the liquid state in the first heat exchanger 2 into the compartment heat exchanger 4, and when the water-air dual-purpose pump is in the defrosting heat pipe loop, the heat exchange refrigerant liquid in the gas state in the second heat exchanger 3 is pumped into the compartment heat exchanger 4.
The pump 5 in this embodiment may be a positive-displacement pump capable of sucking in the positive-displacement direction, and when the positive-displacement pump is in the second heat-exchange heat pipe circuit, the positive-displacement pump pumps the heat-exchange refrigerant liquid in the liquid state in the first heat exchanger 2 into the intermediate heat exchanger 4, and when the positive-displacement pump is in the defrosting heat pipe circuit, pumps the heat-exchange refrigerant liquid in the liquid state in the intermediate heat exchanger 4 into the second heat exchanger 3, thereby forming a circulation circuit.
Preferably, the refrigeration system 1 further comprises a first valve 71 connected between the first heat exchanger 2 and the pump 5, a second valve 72 connected between the second heat exchanger 3 and the pump 5. The first heat exchanger 2, the first valve 71, the pump 5 and the chamber heat exchanger 4 are sequentially connected to form a second refrigeration heat pipe loop, the second heat exchanger 3, the second valve 72, the pump 5 and the chamber heat exchanger 4 are sequentially connected to form a defrosting heat pipe loop, and the number of the first valves 71 and the number of the second valves 72 are respectively corresponding to the number of the pumps 5.
The first valve 71 and the second valve 72 in the present embodiment are normally closed valves, and of course, normally open valves may be used, and the present invention is not limited thereto.
When refrigeration is required, the pump 5 is taken as a water-air dual-purpose pump for example, the first valve 71 is opened, the second valve 72 is closed, and the pump 5 is started, so that the first heat exchanger 2, the first valve 71, the pump 5 and the compartment heat exchanger 4 are sequentially connected to form a second refrigeration heat pipe loop. The heat exchange refrigerant absorbs the cold of the evaporator 16 in the first heat exchanger 2 and condenses into liquid, and the heat exchange refrigerant in a liquid state enters the compartment heat exchanger 4 through the pump 5, so that the compartment heat exchanger 4 emits the cold, and the purpose of refrigerating the refrigerator is achieved.
When defrosting is needed, the pump 5 is exemplified by a water-air dual-purpose pump, the first valve 71 is closed, the second valve 72 is opened, the pump 5 is started, and the second heat exchanger 3, the second valve 72, the pump 5 and the chamber heat exchanger 4 are sequentially connected to form a defrosting heat pipe loop. The refrigerant absorbs the heat of the condenser 12 in the second heat exchanger 3 and evaporates into gas, and the heat exchange refrigerant in the gas state enters the compartment heat exchanger 4 through the pump 5 to release heat, so that the purpose of defrosting the compartment heat exchanger 4 is achieved.
Preferably, the first heat exchanger 2, the second heat exchanger 3 and the chamber heat exchanger 4 are all heat pipes, and the heat pipes utilize waste heat of the condenser 12, so that waste heat emission is reduced, and an effect of protecting the environment is achieved.
Preferably, the first heat exchanger 2 and the second heat exchanger 3 are provided as divided wall type heat pipe heat exchangers.
Preferably, refrigeration system 1 further includes a dew removing tube 13 connected between condenser 12 and capillary tube 15, a dry filter 14, and a liquid storage pack 17 connected between evaporator 16 and compressor 11. The compressor 11, the condenser 12, the dew removing pipe 13, the dry filter 14, the capillary tube 15, the evaporator 16 and the liquid storage bag 17 are sequentially connected to form a first refrigeration circuit.
Specifically, the main flow pattern of the main refrigerant is: the compressor 11 compresses main refrigerant into high-temperature high-pressure gas, the main refrigerant enters the condenser 12 to emit heat, the main refrigerant is condensed into a gas-liquid mixture with medium temperature and high pressure, and the gas-liquid mixture enters the dew removing pipe 13 to be condensed into liquid; the main refrigerant liquid flows through the dry filter 14, enters the capillary tube 15, enters the evaporator 16 after throttling and depressurization, evaporates and absorbs heat in the evaporator 16, and the main refrigerant flowing out of the evaporator 16 enters the compressor 11, thereby completing a refrigeration cycle.
As shown in connection with fig. 2, the refrigerating apparatus comprises a plurality of refrigerating compartments, wherein the number of branches formed by the pumps 5 and the compartment heat exchangers 4 is arranged corresponding to the number of refrigerating compartments, that is, the number of pumps 5 is arranged corresponding to the number of compartment heat exchangers 4, and one branch is formed by one pump 5 and one compartment heat exchanger 4. A plurality of branches formed by the pump 5 and the compartment heat exchanger 4 are connected in parallel between the first heat exchanger 2 and the second heat exchanger 3.
The refrigerating system 1 can correspondingly control the compartment heat exchangers 4 corresponding to the refrigerating compartments to be switched into the second refrigerating heat pipe loop and the defrosting heat pipe loop according to the refrigerating and defrosting requirements. It will be appreciated that in order to switch into the second refrigeration heat pipe loop, and the defrosting heat pipe loop, a corresponding first valve 71, second valve 72 needs to be provided.
Here, the parallel connection of the branches formed by the two sets of the chamber heat exchangers 4 is described as an example:
the two inter-chamber heat exchangers 4 are used for defrosting alternately, so that when one inter-chamber heat exchanger 4 is used for defrosting, the other inter-chamber heat exchanger 4 is used for normally refrigerating, the waste of cold is avoided, and the high efficiency and the energy saving are realized;
when the two compartment heat exchangers 4 need to be refrigerated, alternate refrigeration is adopted, so that uneven liquid supply is avoided;
when defrosting is not needed for the compartment heat exchanger 4, the condenser 12 can normally radiate heat to the environment;
when neither refrigeration nor defrosting is required for both compartment heat exchangers 4, the compressor 11 is turned off.
Preferably, when the refrigeration equipment is provided as an air-cooled refrigeration equipment, the fan 6 is arranged close to the compartment heat exchanger 4, wherein the compartment heat exchanger 4 is arranged inside the refrigeration compartment. And exchanging heat with the refrigeration compartment through air cooling.
As shown in connection with fig. 3, the refrigeration device further comprises a mounting cavity 8 for placing the first refrigeration circuit, the mounting cavity 8 being preset with an interface for docking, the interface being intended to be connected with a branch formed by the compartment heat exchanger 4. The modular design of the refrigeration system is realized.
In order to solve the technical problems, the following also provides a refrigeration defrosting method of the refrigeration equipment.
A method of refrigerating defrosting of a refrigeration appliance as hereinbefore described comprising the steps of:
and when the signal that the refrigerating compartment needs to be refrigerated is acquired, the first refrigerating loop is communicated with the compartment heat exchanger 4 which is arranged corresponding to the refrigerating compartment and the first heat exchanger 2, and meanwhile, the connection between the second heat exchanger 3 and the compartment heat exchanger 4 is disconnected. Thereby the second refrigerating heat pipe loop is communicated, and the defrosting heat pipe loop is disconnected.
And when the signal of the refrigeration equipment for defrosting is acquired, the first refrigeration loop is communicated, the second heat exchanger 3 is communicated with the compartment heat exchanger 4 which is arranged corresponding to the refrigeration compartment, and meanwhile, the connection between the first heat exchanger 2 and the compartment heat exchanger 4 is disconnected. Thereby the second refrigeration heat pipe loop is disconnected, and the defrosting heat pipe loop is communicated.
Compared with the prior art, the refrigeration system, the refrigeration equipment and the refrigeration defrosting method of the refrigeration equipment provided by the invention realize the refrigeration and defrosting switching by utilizing the first heat exchanger 2, the second heat exchanger 3 and the compartment heat exchanger 4, and when the refrigeration is needed, the first heat exchanger 2 is controlled to be communicated with the compartment heat exchanger 4, and the refrigeration capacity is transferred into the compartment needing refrigeration through the second refrigeration heat pipe loop, so that the refrigeration is realized; when defrosting is needed, the second heat exchanger 3 is controlled to be communicated with the inter-chamber heat exchanger 4, and defrosting of the inter-chamber heat exchanger 4 is achieved by utilizing the heat of the condenser 12; the waste heat of the condenser 12 can be effectively utilized, the power consumption is reduced, meanwhile, the chamber temperature of the refrigeration equipment rises less during defrosting, food preservation is facilitated, and the potential safety hazard of the energizing work of the heating wire is reduced. Has the advantages of safety, stability, energy conservation and high efficiency.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be understood that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (10)

1. A refrigeration system comprising a compressor, a condenser, a capillary tube and an evaporator forming a first refrigeration loop, characterized in that the refrigeration system further comprises a first heat exchanger arranged close to the evaporator, a second heat exchanger arranged close to the condenser and a compartment heat exchanger;
the first heat exchanger and the second heat exchanger are respectively connected with the room heat exchanger in parallel to form a second refrigeration heat pipe loop and a defrosting heat pipe loop.
2. A refrigeration system as set forth in claim 1 wherein: the refrigeration system further comprises pumps connected in series with the inter-room heat exchangers, wherein the first heat exchangers and the second heat exchangers are connected in parallel on branches formed by the pumps and the inter-room heat exchangers, and the number of the pumps is corresponding to that of the inter-room heat exchangers.
3. A refrigeration system as set forth in claim 2 wherein: the refrigerating system further comprises a first valve connected between the first heat exchanger and the pump, and a second valve connected between the second heat exchanger and the pump, wherein the first heat exchanger, the first valve, the pump and the compartment heat exchanger are sequentially connected to form a second refrigerating heat pipe loop, the second heat exchanger, the second valve, the pump and the compartment heat exchanger are sequentially connected to form a defrosting heat pipe loop, and the number of the first valves and the number of the second valves are all corresponding to the number of the pumps.
4. A refrigeration system as set forth in claim 1 wherein: the first heat exchanger, the second heat exchanger and the compartment heat exchanger are all arranged as partition wall type heat pipe heat exchangers.
5. A refrigeration system as set forth in claim 1 wherein: the refrigeration system further comprises a dew removing pipe, a drying filter and a liquid storage bag, wherein the dew removing pipe and the drying filter are connected between the condenser and the capillary, the liquid storage bag is connected between the evaporator and the compressor, the condenser, the dew removing pipe, the drying filter, the capillary, the evaporator and the liquid storage bag are sequentially connected to form a first refrigeration loop.
6. A refrigeration apparatus comprising a plurality of refrigeration compartments, characterized in that: the refrigeration apparatus further comprising a refrigeration system according to any of claims 1-5.
7. The refrigeration appliance of claim 6 wherein: the number of the compartment heat exchangers is corresponding to that of the refrigerating compartments, and a plurality of branches formed by the compartment heat exchangers are connected in parallel between the first heat exchanger and the second heat exchanger.
8. The refrigeration appliance of claim 6 wherein: the refrigerator further comprises a fan arranged close to the compartment heat exchanger, wherein the compartment heat exchanger is arranged in the refrigerating compartment.
9. The refrigeration appliance of claim 6 wherein: the device further comprises an installation cavity for placing the first refrigeration loop, and an interface for butt joint is preset in the installation cavity.
10. A method of refrigerating and defrosting a refrigeration appliance according to claim 6, comprising the steps of:
acquiring a signal of the refrigerating compartment needing to be refrigerated, when the signal of the refrigerating compartment needing to be refrigerated is acquired, communicating a first refrigerating loop and a first heat exchanger and a compartment heat exchanger arranged corresponding to the refrigerating compartment, and simultaneously disconnecting the second heat exchanger and the compartment heat exchanger;
and when the signal of the refrigeration equipment for defrosting is obtained, the first refrigeration loop is communicated, the second heat exchanger is communicated with the compartment heat exchanger which is arranged corresponding to the refrigeration compartment, and meanwhile, the connection between the first heat exchanger and the compartment heat exchanger is disconnected.
CN202111636822.5A 2021-12-29 2021-12-29 Refrigerating system, refrigerating equipment and refrigerating defrosting method of refrigerating equipment Pending CN116412564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111636822.5A CN116412564A (en) 2021-12-29 2021-12-29 Refrigerating system, refrigerating equipment and refrigerating defrosting method of refrigerating equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111636822.5A CN116412564A (en) 2021-12-29 2021-12-29 Refrigerating system, refrigerating equipment and refrigerating defrosting method of refrigerating equipment

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Publication Number Publication Date
CN116412564A true CN116412564A (en) 2023-07-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111636822.5A Pending CN116412564A (en) 2021-12-29 2021-12-29 Refrigerating system, refrigerating equipment and refrigerating defrosting method of refrigerating equipment

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