CN210832593U - Refrigerating system - Google Patents
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- CN210832593U CN210832593U CN201921473818.XU CN201921473818U CN210832593U CN 210832593 U CN210832593 U CN 210832593U CN 201921473818 U CN201921473818 U CN 201921473818U CN 210832593 U CN210832593 U CN 210832593U
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Abstract
The utility model discloses a refrigerating system relates to the technical field of air conditioning equipment, and comprises a heat release unit and a refrigerating unit, wherein the heat release unit comprises a condenser, a liquid storage tank with a gas-liquid separator and a check valve; the refrigeration unit comprises an evaporator assembly and a refrigerant pump assembly, wherein an inlet of the refrigerant pump assembly is connected with a second outlet of the liquid storage tank with the gas-liquid separator, an outlet of the refrigerant pump assembly is connected with an inlet of the evaporator assembly, and an outlet of the evaporator assembly is connected with a second inlet of the liquid storage tank with the gas-liquid separator. The utility model provides a refrigerating system can control heat transfer volume size, promotes the refrigeration ability of refrigerating unit, improves refrigeration heat exchange efficiency, reduces use cost and energy consumption.
Description
Technical Field
The utility model relates to an air conditioning equipment technical field especially relates to a refrigerating system.
Background
The energy saving of the air conditioning equipment is one of the keys of the energy saving of the machine room, the energy consumption occupied by the air conditioner of the machine room is counted to be 37-45%, and the energy saving of the machine room is realized by adopting an energy-efficient air conditioning system. According to the latest statistics, the power consumption proportion of the machine room air conditioning system in the whole data center reaches about 45%, wherein the cold source part accounts for 2/3, the green data center is constructed, and the energy-saving solution of the machine room air conditioner is very important and is not slow.
Therefore, the concept must be changed aiming at the problem of the increasingly prominent energy consumption of the data machine room, and the traditional mechanical refrigeration structure is optimized by utilizing a natural cold source through a heat pipe, so that the refrigeration system can operate efficiently.
At present, one end of a common heat pipe is an evaporation section (refrigeration end), the other end of the heat pipe is a condensation section (heat release end), the two ends of the heat pipe are connected through a heat insulation section, and a low-boiling-point refrigerant is filled in vacuum. As shown in fig. 5, when there is a very small temperature difference between two ends of the heat pipe, the starting condition of the heat pipe is satisfied, and whether the heat pipe can normally work after being started must satisfy the first law of thermodynamics (law of conservation of energy) as follows:
△Ps≥△PL+△PV±△Pg
△ Ps is driving force of working liquid circulation in the heat pipe;
△PV-loss of steam pressure;
△PL-a loss of liquid pressure;
△ Pg- △ Pg can be positive, negative or zero, depending on the position of the heat pipe in the gravitational field.
According to the formula, the gravity type heat pipe drives the refrigerant by gravity, and is limited by the distance between the refrigerating end and the heat releasing end, the height difference between the refrigerating end and the heat releasing end and other conditions in the actual environment, and the pressure is required to reach △ PL+△PV△ Pg condition is not more than, all is a huge challenge to designer and construction, and the refrigerant velocity of flow also has no way control and regulation simultaneously, so lead to the application and promote limited, do not receive objective factor influence in order to ensure heat pipe operating condition, the utility model provides aThe power type heat pipe for providing power for the refrigerant pump can well solve the problems.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model provides a refrigerating system can control heat transfer volume size, promotes the refrigeration ability of refrigeration unit, improves refrigeration heat exchange efficiency, reduces use cost and energy consumption.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a refrigerating system, including heat release unit and refrigeration unit, heat release unit includes the condenser, takes the liquid storage pot of vapour and liquid separator and check valve, take the first export of the liquid storage pot of vapour and liquid separator through the check valve with the entry of condenser is connected, the export of condenser with take the first entry of the liquid storage pot of vapour and liquid separator to be connected, refrigerant steam in the condenser with outside the condenser cooling water or air carry out heat exchange; the refrigeration unit comprises an evaporator assembly and a refrigerant pump assembly, wherein an inlet of the refrigerant pump assembly is connected with a second outlet of the liquid storage tank with the gas-liquid separator, an outlet of the refrigerant pump assembly is connected with an inlet of the evaporator assembly, and an outlet of the evaporator assembly is connected with a second inlet of the liquid storage tank with the gas-liquid separator.
Preferably, still include mechanical composite component, first temperature sensor, second temperature sensor and controller, mechanical composite component with the check valve is parallelly connected, mechanical composite component is including the compressor and the solenoid valve that are connected, the compressor with the condenser is connected, the solenoid valve with take the first exit linkage of liquid storage pot of vapour and liquid separator, the compressor first temperature sensor, second temperature sensor, the check valve with the refrigerant pump subassembly all with the controller is connected.
Preferably, the heat release unit further comprises a flow control valve disposed on a pipeline between the condenser and the liquid storage tank with the gas-liquid separator.
Preferably, the refrigeration unit further comprises a throttling device disposed in line between the refrigerant pump assembly and the evaporator assembly.
Preferably, the evaporator assembly comprises a plurality of evaporators connected in parallel, one end of each evaporator is connected with the throttling device, and the other end of each evaporator is connected with the second inlet of the liquid storage tank with the gas-liquid separator through an evaporation pressure regulating valve.
Preferably, the refrigerant pump assembly comprises one refrigerant pump or at least two refrigerant pumps arranged in parallel.
Preferably, the refrigeration unit further comprises a separation branch, and two ends of the separation branch are respectively connected with the outlet of the refrigerant pump assembly and the inlet of the gas-liquid separator in the liquid storage tank with the gas-liquid separator.
Preferably, the refrigeration unit further comprises a plate hole device, the plate hole device is arranged on the separation branch, and the plate hole device is arranged on one side close to the liquid storage tank with the gas-liquid separator.
The utility model discloses for prior art gain following technological effect:
the utility model provides a refrigerating system, including exothermic unit and refrigeration unit, exothermic unit includes the condenser, take vapour and liquid separator's liquid storage pot and check valve, refrigerant steam in the condenser carries out the heat exchange with the outer cooling water of condenser or air, vapour and liquid separator in the liquid storage pot of taking vapour and liquid separator is used for coolant steam and refrigerant liquid in the separation pipeline, be equivalent to the vapour and liquid separator and the two unification products of liquid storage pot with traditional refrigerating system, utilize the liquid refrigerant further heating vaporization of liquid refrigerant in the vapour and liquid separator of liquid storage pot own temperature, guarantee that the refrigerant before the entering condenser is whole to the gaseous state, thereby improve refrigeration heat exchange efficiency. The refrigeration unit comprises an evaporator assembly and a refrigerant pump assembly, and the refrigerant pump assembly controls the refrigerant circulation flow by adjusting the frequency of a refrigerant pump so as to control the size of the heat exchange quantity; the refrigerant pump assembly operates to generate power, and even if the heat release unit and the refrigeration unit are far separated, the refrigerant still circulates to ensure the normal operation of the heat pipe; the refrigerant pump assembly can increase the flow speed and pressure of the liquid refrigerant and forcibly circulate, so that the refrigerant flow of the evaporator assembly is accelerated, the refrigerating capacity of the refrigerating unit is further improved, the power consumption of the air-conditioning refrigerating system can be reduced, and the use cost and the energy consumption are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments 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 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 first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention;
FIG. 5 is a graph showing the axial pressure distribution during operation of the heat pipe.
Description of reference numerals: 1. a heat release unit; 2. a refrigeration unit; 3. an evaporator assembly; 4. a condenser; 5. a liquid storage tank with a gas-liquid separator; 6. a flow control valve; 7. a compressor; 8. an electromagnetic valve; 9. A one-way valve; 10. a mechanical composite component; 11. a refrigerant pump assembly; 12. a throttling device; 13. an evaporator; 14. an evaporation pressure regulating valve; 15. a plate hole device; 16. separating the branches; 17. a refrigerant pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a refrigerating system can control heat transfer volume size, promotes the refrigeration ability of refrigerating unit, improves refrigeration heat exchange efficiency, reduces use cost and energy consumption.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a refrigeration system, which includes a heat releasing unit 1 and a refrigeration unit 2, wherein the heat releasing unit 1 includes a condenser 4, a liquid storage tank 5 with a gas-liquid separator, and a check valve 9, a first outlet of the liquid storage tank 5 with the gas-liquid separator is connected to an inlet of the condenser 4 through the check valve 9, an outlet of the condenser 4 is connected to a first inlet of the liquid storage tank 5 with the gas-liquid separator, and refrigerant vapor in the condenser 4 exchanges heat with cooling water or air outside the condenser 4. The gas-liquid separator in the liquid storage tank 5 with the gas-liquid separator is used for separating refrigerant steam and refrigerant liquid in a pipeline, which is equivalent to a gas-liquid separator and liquid storage tank two-in-one product of a traditional refrigeration system, the liquid refrigerant in the gas-liquid separator is further heated and vaporized by utilizing the temperature of the liquid storage tank, and the refrigerant before entering the condenser 4 is all in a gaseous state, so that the refrigeration heat exchange efficiency is improved, the refrigerant steam coming out of the gas-liquid separator in the liquid storage tank 5 with the gas-liquid separator enters the condenser 4 through the check valve 9 connected with the condenser 4 in series to exchange heat of a machine room or equipment absorbed in a refrigerant with cooling water or air outside the condenser 4.
The refrigerating unit 2 comprises an evaporator assembly 3 and a refrigerant pump assembly 11, wherein an inlet of the refrigerant pump assembly 11 is connected with a second outlet of the liquid storage tank 5 with the gas-liquid separator, an outlet of the refrigerant pump assembly 11 is connected with an inlet of the evaporator assembly 3, an outlet of the evaporator assembly 3 is connected with a second inlet of the liquid storage tank 5 with the gas-liquid separator, and the evaporator assembly 3 is used for exchanging heat between indoor air and refrigerant in a pipeline. In this embodiment, the refrigerant pump assembly 11 includes a refrigerant pump 17. The refrigerant pump assembly 11 controls the refrigerant circulation flow by adjusting the frequency of the refrigerant pump 17, so as to control the size of the heat exchange quantity; the refrigerant pump assembly 11 runs to generate power, and even if the heat release unit 1 and the refrigeration unit 2 are far separated, the refrigerant still circulates to ensure the normal operation of the heat pipe; the refrigerant pump assembly 11 can increase the flow rate and pressure of the liquid refrigerant, forcibly circulate the liquid refrigerant, increase the refrigerant flow rate of the evaporator assembly 3, further improve the refrigerating capacity of the refrigerating unit 2, simplify the piping, and reduce the piping size (equivalent to the suction of the compressor by overcoming the gas resistance with the pressure difference between the front and rear sides of the refrigerant pump 17).
The heat release unit 1 further includes a flow control valve 6, and the flow control valve 6 is provided on a pipeline between the condenser 4 and the liquid storage tank 5 with the gas-liquid separator. The flow control valve 6 is used for adjusting the temperature of a refrigerant in the liquid storage tank 5 with the gas-liquid separator, so that the liquid storage tank has a certain temperature, and the refrigerant in the gas-liquid separator in the liquid storage tank 5 with the gas-liquid separator is further heated to be in a gaseous state, so that the refrigeration and heat exchange efficiency is improved.
The refrigeration unit 2 further comprises a throttle device 12, the throttle device 12 being arranged in the line between the refrigerant pump assembly 11 and the evaporator assembly 3, the throttle device 12 being adapted to regulate the total flow of refrigerant in the line of the refrigeration unit 2.
The evaporator assembly 3 comprises a plurality of evaporators 13 connected in parallel, one end of each evaporator 13 is connected with the throttling device 12, the other end of each evaporator 13 is connected with the second inlet of the liquid storage tank 5 with the gas-liquid separator through an evaporation pressure regulating valve 14, the refrigerant flow of each evaporator 13 can be regulated through the evaporation pressure regulating valve 14, the refrigerant flow can be regulated according to the pressure in each evaporator 13, the system can be kept stable, and the power consumption of the refrigeration system can be further reduced. Specifically, the evaporator 13 is in the form of a microchannel or copper tube aluminum fin structure, which may be in the form of various ends, such as a back plate, a column, a ceiling, etc. The evaporators 13 can be respectively placed in different machine rooms or equipment for absorbing heat in air of the different machine rooms or equipment, so that the heat can be better absorbed. Since the refrigerant pump 17 is powered, the liquid pressure drop can be overcome and the refrigeration capacity can be reliably distributed and controlled even if the plurality of evaporators 13 are spaced far apart from each other.
In this embodiment, all the pipelines are high pressure resistant copper pipes, and the refrigerant is a low boiling point medium.
Refrigerant steam in the condenser 4 carries out heat exchange with the outside cooling water or the air of condenser 4, and cooling water and air are collectively called external medium, and when the temperature of external medium was greater than indoor ambient temperature far away, can not prepare mechanical composite assembly 10 this moment, in this embodiment, the user provides the cooling water for condenser 4, is the heat pipe cooling water refrigerating system of taking the refrigerant pump in this embodiment promptly.
The working mode of the system in the embodiment is a pure heat pipe refrigeration mode, during working, the refrigeration steam from the gas-liquid separator in the liquid storage tank 5 with the gas-liquid separator enters the condenser 4 through the check valve 9 connected with the condenser 4 in series, heat of a machine room or equipment absorbed in a pipeline is exchanged with cooling water outside the condenser 4, the refrigeration unit 2 adopts a refrigerant pump assembly 11 for forcibly circulating a refrigerant, the refrigerant pump assembly 11 provides refrigerant circulation power for the system, and the energy efficiency ratio is greatly improved.
Compared with the existing gravity separation type heat pipe, the heat pipe system is additionally provided with the refrigerant pump 17, a liquid storage tank, a gas-liquid separator and other components, the heat pipe system is greatly improved, and the heat exchange efficiency is greatly improved. Compared with other existing heat pipes, the system can conveniently and continuously adjust and control the heat exchange quantity of the heat pipes, and the control capability of the heat pipes is greatly enhanced. Compared with other heat exchangers without heat pipes, the system can transfer a large amount of heat from the evaporation section to the condensation section of the heat pipe under extremely small temperature difference due to large latent heat of vaporization in phase change heat transfer. Because the cold and heat sources are separated from each other, the long-distance capacity transmission can be realized. The heat pipe system is high in efficiency, a natural cold source is indirectly utilized, the system efficiency is greatly improved, low-temperature difference direct evaporation is adopted, and then power is saved, so that the problems that the traditional gravity separation type heat pipe is insufficient in liquid supply power, the installation positions of the evaporator 13 and the condenser 4 are limited, and the heat exchange quantity of the heat pipe is effectively controlled are solved.
Example two:
as shown in fig. 2, on the basis of the structure in the first embodiment, in order to solve the problem of cold supplementation when the cold of the heat pipe system does not meet the requirement, a mechanical composite component 10, a first temperature sensor, a second temperature sensor and a controller are provided in this embodiment, the mechanical composite component 10 is connected in parallel with a check valve 9, the check valve 9 is used for switching a circulation pipeline of a refrigerant when the mechanical composite component 10 does not work, the mechanical composite component 10 includes a compressor 7 and an electromagnetic valve 8 which are connected, the compressor 7 is connected with a condenser 4, the electromagnetic valve 8 is connected with a first outlet of a liquid storage tank 5 with a gas-liquid separator, the compressor 7, the first temperature sensor for testing the indoor temperature, the second temperature sensor for testing the temperature of the cooling water or the outdoor air exchanging heat with the condenser 4, the check valve 9 and the refrigerant pump assembly 11 are all connected with the controller. The total flow of the refrigerant in the pipeline can be adjusted through the throttling device 12, and the work load of the mechanical composite component 10 is adjusted accordingly, so that cooling can be supplied according to the requirement, and the energy consumption is reduced.
The mechanical composite component 10 is added with traditional mechanical refrigeration on the basis of a heat pipe refrigeration system, so that when the heat pipe refrigeration system cannot work, the whole refrigeration system can meet the use requirement as usual, refrigeration steam from a gas-liquid separator in a liquid storage tank 5 with the gas-liquid separator exchanges heat with air or other cooling media outside a condenser 4 through high-temperature steam after passing through the mechanical composite component 10.
In this embodiment, the refrigerant vapor in the condenser 4 exchanges heat with the air outside the condenser 4, that is, an air cooling mode is adopted to form a heat pipe with a refrigerant pump and a mechanical composite air-cooled refrigeration system, the indoor temperature and the outdoor temperature measured by the first temperature sensor and the second temperature sensor are transmitted to the controller for comparison, and the controller controls whether the compressor 7, the check valve 9 and the refrigerant pump assembly 11 are turned on or not according to the indoor and outdoor temperature difference, and further controls whether the mechanical composite assembly 10 and the heat pipe system work or not respectively, so as to form the following three working modes: a pure heat pipe refrigeration mode, a mixed refrigeration mode in which heat pipes and machinery coexist, and a mechanical refrigeration mode.
Pure heat pipe refrigeration mode: when the indoor ambient temperature is far greater than the outdoor ambient temperature, specifically, when the difference obtained by subtracting the outdoor temperature from the indoor temperature is greater than 10 ℃, the controller controls the heat pipe to start working, because the temperature difference between the indoor and outdoor environments is very large at the moment, when the heating capacity of the heat pipe can meet the requirement, the controller controls the one-way valve 9 to be opened and the compressor 7 to be closed, the mechanical refrigeration stops running, and the system is a pure heat pipe refrigeration mode: when the mechanical composite component 10 does not work, refrigerating steam coming out of the liquid storage tank 5 with the gas-liquid separator enters the condenser 4 through the check valve 9 connected with the mechanical composite component 10 in parallel to exchange heat of a machine room or equipment absorbed in a pipeline with outdoor air, a cooled liquid refrigerant is conveyed to the evaporator component 3 through the refrigerant pump component 11, the refrigerant in the evaporator component 3 absorbs the heat of the machine room or the equipment, the heat is repeatedly circulated, at the moment, the system becomes a power heat pipe refrigerating system, and the energy efficiency ratio is greatly improved.
Hybrid refrigeration mode with heat pipe and machinery coexisting: when the indoor environment temperature is slightly higher than the outdoor environment temperature, specifically, when the difference obtained by subtracting the outdoor temperature from the indoor temperature is greater than 0 ℃ and less than or equal to 10 ℃, the mechanical composite component 10 intermittently works, the controller enables the refrigerant pump component 11 to work for a long time, the heat pipe firstly works, and the efficiency of the heat pipe during working is as described in the pure heat pipe working mode; because the indoor ambient temperature is slightly greater than the outdoor ambient temperature, the temperature difference is not big, the cold volume that the heat pipe refrigerating system provided at this moment can not satisfy the demand, mechanical refrigeration work is required to supply cold volume to satisfy the demand, mechanical refrigeration also participates in the operation promptly, the controller controls check valve 9 to close and compressor 7 is opened promptly, make mechanical composite assembly 10 and refrigerant pump subassembly 11 work simultaneously, because refrigerant pump subassembly 11 work, condensing pressure reduces, evaporating pressure rises, so reduce the energy consumption of compressor 7, compare traditional mechanical refrigeration energy efficiency ratio and improve, simultaneously because heat pipe work, increase cold volume, reduce the operating time of compressor 7, thereby energy saving.
Specifically, at this time, because the temperature of the cooling medium of the condenser 4 is relatively low, and the condensing pressure is relatively low, if the conventional mechanical refrigeration system is adopted, the discharge pressure of the compressor 7 is relatively low, the inlet and the outlet of the throttling device 12 do not have enough pressure difference, and flash gas is formed at the inlet of the throttling device 12, so that the pressure of the refrigerant entering the evaporator 13 is relatively low, and meanwhile, the refrigerant gas and the refrigerant liquid coexist, and the evaporation efficiency is relatively low. In the system, the refrigerant pump assembly 11 is added in the traditional mechanical refrigeration system, namely the compressor 7 is mainly responsible for compressing gas, and the refrigerant pump assembly 11 is mainly responsible for pressurizing and supplying liquid working medium, so that the efficiency of the equipment can be maximized, and the efficiency of the whole system can be maximized. Moreover, the system can reliably solve the problems of insufficient liquid supply pressure and generation of flash gas, so that the condensing pressure can be reduced along with the reduction of the ambient temperature, the energy consumption of the compressor 7 is reduced, the quality gas transmission quantity of the compressor 7 is improved, the vibration and the noise are reduced, the service life of the compressor 7 is prolonged, the maintenance cost of the compressor is reduced, and the economic benefit of the whole system is improved.
Mechanical refrigeration mode: when the indoor environment temperature is lower than the outdoor environment temperature, the heat pipe stops working, and the system is in a mechanical refrigeration mode: the controller controls the one-way valve 9 to be closed and the compressor 7 to be opened, so that the mechanical composite component 10 works, the refrigerant pump component 11 does not work, the gas-liquid separator is used for separating refrigerant steam and refrigerant liquid in the pipeline in the liquid storage tank 5 with the gas-liquid separator, the liquid refrigerant in the gas component is further heated and vaporized by utilizing the temperature of the liquid storage tank, the refrigerant before entering the mechanical composite component 10 is all in a gaseous state, meanwhile, the refrigerant is supercooled after condensation, flash steam entering the evaporator component 3 is eliminated, the evaporation efficiency is improved, so that the power consumption of the compressor 7 is reduced, and the energy consumption of the system is.
Example three:
since refrigerant vapor may still be present in the refrigerant after passing through the refrigerant pump assembly 11, the efficiency of the evaporator assembly 3 in absorbing heat must be affected if the refrigerant vapor continues to circulate in the tubes of the refrigeration unit 2. As shown in fig. 3, in order to solve this problem, based on the structure of the first embodiment, the refrigeration unit 2 in this embodiment further includes a separation branch 16, two ends of the separation branch 16 are respectively connected to the outlet of the refrigerant pump assembly 11 and the inlet of the gas-liquid separator in the receiver 5 with the gas-liquid separator, and the separation branch 16 is used for separating the refrigerant vapor and the refrigerant liquid in the refrigeration unit 2.
The refrigerating unit 2 further comprises a plate hole device 15, the plate hole device 15 is arranged on the separation branch 16, the plate hole device 15 is used for separating refrigerant liquid in the separation branch 16, the plate hole device 15 is arranged on one side close to the liquid storage tank 5 with the gas-liquid separator, and the refrigerant liquid in the pipeline can be better separated. To facilitate the passage of a small amount of refrigerant vapor, the openings of the plate hole means 15 may be tapered or made eccentric to the axis of the pipe so that the refrigerant vapor is returned to the liquid reservoir 5 with the gas-liquid separator.
In this embodiment, the separation branch 16 is added to the refrigeration unit 2, so that the refrigerant vapor and the refrigerant liquid in the pipeline of the refrigeration unit 2 can be separated from the pipeline, and the refrigerant vapor returns to the liquid storage tank 5 with the gas-liquid separator, thereby effectively improving the refrigeration efficiency of the refrigeration unit 2.
Example four:
as shown in fig. 4, on the basis of the structure in the third embodiment, the refrigerant pump assembly 11 includes at least two refrigerant pumps 17 arranged in parallel, and in this embodiment, the refrigerant pumps 17 are arranged in two. The circulation speed of the liquid refrigerant in the pipeline of the refrigeration unit 2 can be increased by adopting a plurality of refrigerant pumps 17, the refrigerant flow of the evaporator 13 is increased, the refrigeration capacity of the refrigeration unit 2 can be further improved, the conveying distance of the system refrigerant can be increased, and the refrigeration range of the system is further enlarged. Meanwhile, the liquid storage tank 5 with the gas-liquid separator can automatically distribute the refrigerant flow according to the number of the refrigerant pumps 17 to ensure the refrigerant utilization efficiency.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. The refrigerating system is characterized by comprising a heat release unit and a refrigerating unit, wherein the heat release unit comprises a condenser, a liquid storage tank with a gas-liquid separator and a one-way valve, a first outlet of the liquid storage tank with the gas-liquid separator is connected with an inlet of the condenser through the one-way valve, an outlet of the condenser is connected with a first inlet of the liquid storage tank with the gas-liquid separator, and refrigerant steam in the condenser exchanges heat with cooling water or air outside the condenser; the refrigeration unit comprises an evaporator assembly and a refrigerant pump assembly, wherein an inlet of the refrigerant pump assembly is connected with a second outlet of the liquid storage tank with the gas-liquid separator, an outlet of the refrigerant pump assembly is connected with an inlet of the evaporator assembly, and an outlet of the evaporator assembly is connected with a second inlet of the liquid storage tank with the gas-liquid separator.
2. The refrigeration system of claim 1, further comprising a mechanical composite assembly, a first temperature sensor, a second temperature sensor and a controller, wherein the mechanical composite assembly is connected in parallel with the one-way valve, the mechanical composite assembly comprises a compressor and a solenoid valve which are connected, the compressor is connected with the condenser, the solenoid valve is connected with a first outlet of the liquid storage tank with the gas-liquid separator, and the compressor, the first temperature sensor, the second temperature sensor, the one-way valve and the refrigerant pump assembly are all connected with the controller.
3. The refrigeration system according to claim 1 or 2, wherein the heat releasing unit further comprises a flow control valve provided on a pipe between the condenser and the liquid reservoir with the gas-liquid separator.
4. The refrigeration system of claim 1 or 2, further comprising a throttling device disposed in line between the refrigerant pump assembly and the evaporator assembly.
5. The refrigeration system of claim 4, wherein the evaporator assembly comprises a plurality of evaporators connected in parallel, one end of each evaporator is connected to the throttling device, and the other end of each evaporator is connected to the second inlet of the liquid storage tank with the gas-liquid separator through an evaporation pressure regulating valve.
6. A refrigeration system as set forth in claim 1 or 2, wherein said refrigerant pump assembly comprises one refrigerant pump or at least two refrigerant pumps arranged in parallel.
7. The refrigeration system as claimed in claim 1 or 2, wherein the refrigeration unit further comprises a separation branch, and both ends of the separation branch are respectively connected with the outlet of the refrigerant pump assembly and the inlet of the gas-liquid separator in the liquid storage tank with the gas-liquid separator.
8. The refrigeration system of claim 7, further comprising a plate hole arrangement disposed on the separation branch and on a side proximate to the liquid reservoir with the gas-liquid separator.
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| CN201921473818.XU CN210832593U (en) | 2019-09-06 | 2019-09-06 | Refrigerating system |
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| CN201921473818.XU CN210832593U (en) | 2019-09-06 | 2019-09-06 | Refrigerating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455001A (en) * | 2019-09-06 | 2019-11-15 | 北京中普瑞讯信息技术有限公司 | a refrigeration system |
| CN112460858A (en) * | 2020-12-01 | 2021-03-09 | 珠海格力电器股份有限公司 | Air conditioner |
| CN117553364A (en) * | 2024-01-09 | 2024-02-13 | 深圳中集天达吉荣航空制冷有限公司 | Aircraft ground air conditioning system based on phase change cold accumulation and control method |
-
2019
- 2019-09-06 CN CN201921473818.XU patent/CN210832593U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455001A (en) * | 2019-09-06 | 2019-11-15 | 北京中普瑞讯信息技术有限公司 | a refrigeration system |
| CN112460858A (en) * | 2020-12-01 | 2021-03-09 | 珠海格力电器股份有限公司 | Air conditioner |
| CN117553364A (en) * | 2024-01-09 | 2024-02-13 | 深圳中集天达吉荣航空制冷有限公司 | Aircraft ground air conditioning system based on phase change cold accumulation and control method |
| CN117553364B (en) * | 2024-01-09 | 2024-04-02 | 深圳中集天达吉荣航空制冷有限公司 | Aircraft ground air conditioning system based on phase change cold accumulation and control method |
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