CN210951940U - Fluorine pump multi-connected refrigeration system - Google Patents
Fluorine pump multi-connected refrigeration system Download PDFInfo
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- CN210951940U CN210951940U CN201921875140.8U CN201921875140U CN210951940U CN 210951940 U CN210951940 U CN 210951940U CN 201921875140 U CN201921875140 U CN 201921875140U CN 210951940 U CN210951940 U CN 210951940U
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- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 84
- 239000011737 fluorine Substances 0.000 title claims abstract description 84
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000005057 refrigeration Methods 0.000 title claims description 32
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000003507 refrigerant Substances 0.000 description 22
- 239000010687 lubricating oil Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a fluorine pump allies oneself with refrigerating system more, the system includes: the system comprises a first-stage circulation loop and a second-stage circulation loop which are thermally coupled, wherein a plurality of evaporators are connected in parallel, the inlets of the evaporators are communicated with the outlets of a first fluorine pump, the inlet of the first fluorine pump is communicated with the outlets of a plurality of branch pipes, the inlet of each branch pipe is communicated with the outlet of the evaporator to form the first-stage circulation loop, and each branch pipe is coupled with a heat exchanger thermocouple in a corresponding cold source module; the cool source module includes: the condenser, the first liquid storage tank, the second fluorine pump, the heat exchanger and the compressor which are sequentially connected into the second-stage circulation loop solve the technical problem that the compressor is easy to damage in the prior art.
Description
Technical Field
The invention relates to a refrigerating system, in particular to a fluorine pump multi-connected refrigerating system.
Background
With the rapid development of big data technology, the proportion of the electric energy consumed by the data center to the total electric energy consumption of the society is higher and higher. How to reduce the energy consumption of the data center is a technical problem to be solved urgently.
At present, the consumption reduction technology generally refers to reducing the cooling energy consumption of a data center, and the common methods include: an air-air indirect evaporative cooling scheme, a fresh air cooling scheme, an indirect evaporative cooling scheme taking water as a medium and the like. However, the current energy-saving cooling scheme mainly has the following defects: the existing cooling schemes all adjust the temperature with constant temperature as the purpose of regulation, the refrigeration is stopped when the temperature of the data center reaches the target temperature, and the refrigeration system is started to refrigerate when the temperature of the data center is higher than the target temperature.
The patent document with the application number of 201410839864.2 discloses a fluorine pump refrigeration cycle system of an air-conditioning compressor of a precision machine room, which comprises an indoor air supply evaporator, a first rotary lock valve, an SDC intelligent controller, a condenser and a refrigeration cycle system which are sequentially connected through pipelines; the refrigeration circulating system comprises a refrigeration compressor system and a fluorine pump system which are communicated with each other through a pipeline; the fluorine pump system comprises a first electromagnetic valve, a capillary tube, a fluorine pump and a second electromagnetic valve, wherein the inlet of the fluorine pump is connected with the condenser through the first electromagnetic valve, and the outlet of the fluorine pump is connected with the indoor air supply evaporator through the capillary tube and the second electromagnetic valve in sequence. The invention utilizes the technology of outdoor cold air low enthalpy value cooling indoor air in transition season and winter, applies a novel fluorine pump in the traditional vapor compression refrigeration cycle system, combines with a compressor system, and controls the opening and closing of the refrigeration compressor system and the starting fluorine pump system through an intelligent controller so as to realize the switching between winter and summer, thereby greatly saving the electric energy consumption.
However, the inventor finds that, in the prior art, a compressor and a fluorine pump are connected in parallel, and the compressor and the fluorine pump are both connected with a condenser and an evaporator to form a stroke closed loop, and as the volume of a data center is large, a pipeline of the closed loop is long, and when the compressor has an oil return condition, lubricating oil cannot return to the compressor in time, so that the compressor is vulnerable.
Disclosure of Invention
The invention aims to provide a multi-connected refrigerating system with a fluorine pump, and aims to solve the problem that a compressor is easy to damage when oil return occurs in the compressor in the prior art.
The invention solves the technical problems through the following technical scheme:
the embodiment of the invention provides a fluorine pump multi-connected refrigeration system, which comprises: a first stage circulation loop and a second stage circulation loop thermally coupled, wherein,
the first-stage circulation loop is formed by sequentially communicating an evaporator, a first fluorine pump, a first main pipe, a branch pipe and a second main pipe, wherein the first-stage circulation loop is connected with a plurality of evaporators in parallel;
the second stage circulation loop includes: the cold source modules are circulating loops formed by sequentially communicating a condenser, a first liquid storage tank, a second fluorine pump, a heat exchanger and a compressor;
each branch pipe is coupled and connected with the heat exchanger thermocouple in the corresponding second-stage circulation loop.
By applying the embodiment of the invention, the evaporator arranged in the data center room forms the first-stage circulation loop through the first fluorine pump and the branch pipe. During circulation, under the action of the first fluorine pump, the refrigerant flows into the evaporator and absorbs heat to be vaporized, the vaporized refrigerant flows into the heat exchanger under the action of the first fluorine pump, and the heat exchanger transfers the heat to the second-stage circulation loop under the action of heat exchange. A condenser, a first liquid storage tank, a second fluorine pump, a heat exchanger and a compressor in the cold source module are communicated to form a second-stage circulation loop; in the second-stage circulation loop, the compressor or the second fluorine pump drives the refrigerant to enter the heat exchanger, the refrigerant absorbs heat and is vaporized in the heat exchanger, then the refrigerant flows into the condenser to release heat and be liquefied, the liquefied refrigerant flows into the first liquid storage tank, and the circulation is carried out. Compared with a large loop formed by communicating a compressor, a condenser, a fluorine pump and an evaporator in the prior art, the embodiment of the invention uses two thermally coupled shorter circulation loops, shortens the length of a return path of lubricating oil, is more beneficial to return of the lubricating oil, and solves the technical problem that the compressor is easily damaged because the lubricating oil cannot return to the compressor in time.
Optionally, a first throttle valve is further connected in series between the second fluorine pump and the heat exchanger;
the second fluorine pump is connected with a one-way valve in parallel.
Optionally, a first branch formed by sequentially connecting a first one-way valve, a compressor and an electromagnetic valve in series is further connected in series between the condenser and the heat exchanger;
and the first branch is also connected with a second one-way valve in parallel.
Optionally, a second liquid storage tank is further connected in series between the first fluorine pump and the first main pipe.
Optionally, the first fluorine pump is at least two fluorine pumps connected in parallel.
Optionally, the first main pipe and the second main pipe are further communicated through an electromagnetic valve.
Optionally, a sprayer is further arranged above the condenser.
Compared with the prior art, the invention has the following advantages:
(1) by applying the embodiment of the invention, an evaporator arranged in a data center room forms a first-stage circulation loop through a first fluorine pump and a branch pipe, and a condenser, a first liquid storage tank, a second fluorine pump, a heat exchanger and a compressor in a cold source module are communicated to form a second-stage circulation loop; compared with a large loop formed by communicating a compressor, a condenser, a fluorine pump and an evaporator in the prior art, the two thermally coupled shorter circulation loops are used in the embodiment of the invention, so that the length of a return path of lubricating oil is shortened, the return of the lubricating oil is facilitated, and the technical problem that the compressor is easily damaged because the lubricating oil cannot return to the compressor in time is solved.
(2) The cold source is integrated with the cold source module, so that the modularization degree of the equipment is improved, the installation cost can be reduced, and the expansion is easy.
(3) The heat dissipation end is constructed by being divided into a plurality of modules, so that the heat dissipation end can be arranged at different positions to be dispersedly arranged, and the space adaptability of the equipment is improved.
Drawings
Fig. 1 is a schematic structural diagram of a fluorine pump multiple refrigeration system provided in embodiment 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Fig. 1 is a schematic structural diagram of a fluorine pump multiple refrigeration system according to an embodiment of the present invention, and as shown in fig. 1, the system includes: a first stage circulation loop and a second stage circulation loop thermally coupled, wherein,
the circulation loop where the cold source module is located is a second-stage circulation loop, wherein the structure of each cold source module is the same, and taking one of the cold source modules 10 as an example, the cold source module 10 includes: a condenser 11, a first liquid storage tank 13, a second fluorine pump 15, a first throttle valve 17, a heat exchanger 18, an electromagnetic valve 19, a compressor 21 and a first one-way valve 23 which are sequentially connected into a loop; the first check valve 23, the compressor 21 and the electromagnetic valve 19 are sequentially connected in series to form a first branch; and the heat exchanger in each cold source module is in heat exchange connection with a corresponding one of the branch pipes, for example, the heat exchanger 18 is in heat exchange connection with the branch pipe 20. The number of the branch pipes 20 may be the same as the number of the cool source modules.
As shown in fig. 1, the circulation loops of the end 1, the end 2, …, and the end N are first-stage circulation loops, and the end 1, the end 2, …, and the end N are located in the data center room, and the first-stage circulation loop is a circulation loop formed by sequentially communicating the evaporator 50, the first fluorine pump 33, the first main pipe 301, the branch pipe 20, and the second main pipe 302. The liquid refrigerant flowing out of the branch pipe 20 flows into the first main pipe 301. The refrigerant flowing out of the outlet of the first main pipe 301 flows into the inlet of the first fluorine pump 33, and the outlet of the first fluorine pump 33 is communicated with the inlet of each evaporator 50; the outlet of the evaporator 50 communicates with the inlet of the second main pipe 302; the outlet of the secondary main pipe 302 communicates with the inlet of the branch pipe 20. To facilitate the confluence, a plurality of branch pipe outlets respectively extending from the heat exchangers are confluent to the inlet of the first main pipe 301; to facilitate the splitting, the outlet of the second main pipe 302 communicates with the inlet of the corresponding branch pipe of each heat exchanger.
Taking the heat-absorbing end 1 in the data center room in fig. 1 as an example to explain the embodiment of the present invention, when the first fluorine pump 33 operates, a driving force is generated on the refrigerant in the first stage circulation loop, the refrigerant starts to flow, and then the first fluorine pump 33 starts to flow into the evaporator 50 in the end 1, the heat is absorbed in the evaporator 50 to vaporize, the vaporized refrigerant flows into the second main pipe 302 under the continuous driving of the first fluorine pump 33, after flowing through the second main pipe 302, if only the cold source module 10 is turned on, the vaporized refrigerant flows into the inlet of the branch pipe 20, and then enters the heat exchanger 18, the heat is released and liquefied in the heat exchanger 18, the liquefied refrigerant flows into the first main pipe 301, and then returns to the first fluorine pump 33, and thus the first stage circulation is realized.
It should be noted that, if the cold source module 40 and the cold source module 10 in fig. 1 are both turned on, the refrigerant vaporized at the end 1 flows into the branch pipes corresponding to the cold source module 40 and the cold source module 10, respectively.
In practical applications, two fluorine pumps connected in parallel are used as the first fluorine pump 33 in order to improve reliability and increase the flow rate of the coolant in the first main pipe 301.
Correspondingly, when the cold source module 10 works, the refrigerant in the cold source module 10 starts to flow under the action of the compressor 21 and/or the second fluorine pump 15, and then flows through the heat exchanger 18, the heat released by the branch pipe 20 is absorbed in the heat exchanger 18 to be vaporized, the vaporized refrigerant flows into the compressor 21, the refrigerant is compressed and liquefied by the compressor, the liquefied refrigerant flows into the condenser 11, the heat is released into the external space in the condenser 11, then the refrigerant flows into the first liquid storage tank 13, the liquefied refrigerant sucked out from the first liquid storage tank 13 by the second fluorine pump 15 is conveyed into the heat exchanger 18.
By applying the embodiment of the invention, an evaporator arranged in a data center room forms a first-stage circulation loop through a first fluorine pump and a branch pipe, and a condenser, a first liquid storage tank, a second fluorine pump, a heat exchanger and a compressor in a cold source module are communicated to form a second-stage circulation loop; compared with a large loop formed by communicating a compressor, a condenser, a fluorine pump and an evaporator in the prior art, the two thermally coupled shorter circulation loops are used in the embodiment of the invention, so that the length of a return path of lubricating oil is shortened, the return of the lubricating oil is facilitated, and the technical problem that the compressor is easily damaged because the lubricating oil cannot return to the compressor in time is solved.
In addition, the embodiment of the invention adopts the two-stage circulation loop for refrigeration, so that cooling water and the like can not be introduced into a data center machine room, the risk of the cooling water on equipment in the machine room is avoided, and the reliability of the machine room is improved; and fresh air can not be introduced into the data center machine room, so that the air of the data center machine room can be prevented from being polluted by the fresh air.
The two-stage circulation loop refrigeration mode adopted by the embodiment of the invention shortens the length of the circulation pipeline and can solve the problems of power distribution and refrigeration medium shunt of the long connecting pipe;
furthermore, the cold source module and the tail end in the embodiment of the invention are in modular design, thereby facilitating the capacity expansion construction of the system. The cold source modules can be mutually backed up, and the tail ends can also be mutually backed up, so that the trouble-free running can be ensured within 8760 hours all the year.
A second receiver 31 is provided between the first main pipe 301 and the first fluorine pump 33 to store the liquefied refrigerant in the first-stage circulation circuit.
Further, in order not to start the compressor under the condition of low refrigeration requirement, a second one-way valve 25 connected with the first branch in parallel is connected between the condenser 11 and the heat exchanger. In order to increase the flow rate of the refrigerant, the second fluorine pump 15 is connected in parallel with a third check valve 27.
In order to quickly maintain the temperature of the condenser 11 and facilitate the dissipation of heat from the condenser 11 to the environment, a shower 29 is also provided above the condenser 11.
Further, the first main pipe 301 and the second main pipe 302 are also communicated through the electromagnetic valve 35.
In addition, in practical application, the heat exchange of the fluorine pump can be realized by only starting the second fluorine pump 15 according to the temperature of the outside; or only starting the compressor 21 to exchange heat by utilizing the compressor; or the compressor 21 and the second fluorine pump 15 are both started to realize the strongest heat exchange effect; namely, the user can adjust the refrigeration mode according to the actual demand, and refrigeration can be realized more flexibly; and the compressor can be not started under the condition of low requirement on refrigeration, the low temperature of the external environment can be fully utilized, and the energy consumption can be further reduced.
In order to further fully utilize the low temperature of the external environment, a cold water pipeline can be connected to the heat exchanger 18 in a heat exchange manner, and then the data center machine room can be cooled without starting the second fluorine pump 15 and the compressor 21.
Example 2
On the basis of the embodiment shown in fig. 1, an embodiment of the present invention further provides a control method for a fluorine pump multiple refrigeration system, where the method is applied to a fluorine pump multiple refrigeration system, and the system includes: and first and second stage loops 50 thermally coupled, wherein the heat sink module comprises: a condenser 11, a first liquid storage tank 13, a second fluorine pump 15, a heat exchanger and a compressor 21 which are connected in sequence to form a loop; a plurality of evaporators 50 are connected to a first main pipe 301 in parallel, and the first main pipe 301 is in thermocouple coupling connection with the heat exchanger; a sprayer 29 is also arranged above the condenser 11; the method comprises the following steps:
1) judging whether the difference between the temperature of the environment where the evaporator 50 is located and the first preset threshold is greater than or equal to the temperature of the environment where the condenser 11 is located or not under the condition that the refrigeration system is needed to be used for refrigeration; if yes, executing step 2); if not, executing the step 3);
2) keeping the compressor 21 in a closed state, and starting the first fluorine pump 33;
3) judging whether the temperature of the environment where the condenser 11 is located is greater than the difference between the temperature of the environment where the evaporator 50 is located and a first preset threshold value, and whether the temperature of the environment where the condenser 11 is located is less than or equal to the difference between the temperature of the environment where the evaporator 50 is located and a second preset threshold value are both true, wherein the first preset threshold value is greater than the second preset threshold value; if yes, executing step 4); if not, executing the step 5);
4) when the preset condition of spraying is met, starting the sprayer until the temperature of the environment where the condenser 11 is located is greater than the difference between the temperature of the environment where the evaporator 50 is located and a first preset threshold value;
5) judging whether the temperature of the environment where the condenser 11 is located is greater than the difference between the temperature of the environment where the evaporator 50 is located and a second preset threshold value, and whether the temperature of the environment where the condenser 11 is located is smaller than or equal to the difference between the temperature of the environment where the evaporator 50 is located and a third preset threshold value is true, wherein the second preset threshold value is greater than the third preset threshold value; if yes, executing step 6); if not, executing step 7);
6) starting the compressor 21 and additionally starting the at least one second fluorine pump 15; and starting the sprayer under the condition of meeting the spraying condition;
7) the compressor 21 is started.
Specifically, the method comprises the following steps: the temperature of the environment in which the evaporator 50 is located is 30 degrees celsius, the first preset threshold is 5 degrees celsius, the second preset threshold is 4 degrees celsius, and the third preset threshold is 3 degrees celsius.
A: when the temperature of the environment where the condenser 11 is located is 24 degrees celsius, the difference between the temperature of the environment where the evaporator 50 is located and the first preset threshold is greater than the temperature of the environment where the condenser 11 is located, and step 2) is performed.
Keeping the compressor 21 in a closed state, and turning on the first fluorine pump 33, that is, the liquid heat-dissipating medium R410A is stored in the first liquid storage tank 13, the heat-dissipating medium R410A flows into the plate heat exchanger 105 through the electromagnetic valve 19 under the action of gravity, turns into a gas state, flows out from the plate heat exchanger 105 and returns to the condenser 11, dissipates heat in the condenser 11 and returns to a liquid state, thereby achieving the purpose of dissipating heat.
B: when the temperature of the environment where the condenser 11 is located is 26 ℃, the difference between the temperature of the environment where the evaporator 50 is located and the first preset threshold is smaller than the temperature of the environment where the condenser 11 is located; the difference between the temperature of the environment in which the evaporator 50 is located and the second predetermined threshold value is equal to the temperature of the environment in which the condenser 11 is located.
In this step, if the temperature of the condenser 11 is higher than the set value, the shower 1019 is activated until the temperature of the environment in which the evaporator 50 is located is reduced to 25 ℃.
If the temperature of the condenser 11 is not higher than the set value, an additional one of the cool source modules 10 is activated to dissipate heat.
C: when the ambient temperature of the condenser 11 is 27 ℃, the difference between the ambient temperature of the evaporator 50 and the second preset threshold is smaller than the ambient temperature of the condenser 11; and the difference between the temperature of the environment in which the evaporator 50 is located and the third predetermined threshold is equal to the temperature of the environment in which the condenser 11 is located.
In this step, an additional at least one second fluorine pump 15 is activated for heat dissipation.
D: if the ambient temperature of the condenser 11 is 27 ℃, the difference between the temperature of the environment where the evaporator 50 is located and the second preset threshold is less than the temperature of the environment where the condenser 11 is located; and the condition that the difference between the temperature of the environment where the evaporator 50 is located and the third preset threshold is equal to the temperature of the environment where the condenser 11 is located is not satisfied, that is, the temperature of the environment where the condenser 11 is located is too high, the compressor 21 in the cold source module 10 is started to perform forced heat dissipation.
In practical application, the second fluorine pump 15 and the compressor 21 can not be started, and the heat exchanger 18 is cooled only by a water circulation pipeline passing through the heat exchanger 18, and the working mode is called a chilled water refrigeration mode; the operation mode in which only the second fluorine pump 15 is started to cool the heat exchanger 18 is referred to as a fluorine pump cooling mode; the operation mode in which only the compressor 21 is started to cool the heat exchanger 18 without starting the second fluorine pump 15 is referred to as a compressor cooling mode; the working mode in which the second fluorine pump 15 is started and the compressor 21 cools the heat exchanger 18 is called a compressor-fluorine pump mixed refrigeration mode;
according to the embodiment of the invention, different refrigeration strategies can be used according to different temperatures of the environment where the condenser 11 is located, so that the energy consumption can be reduced.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A fluorine pump multi-connected refrigeration system, which is characterized by comprising: a first stage circulation loop and a second stage circulation loop thermally coupled, wherein,
the first-stage circulation loop is formed by sequentially communicating an evaporator, a first fluorine pump, a first main pipe, a branch pipe and a second main pipe, wherein the first-stage circulation loop is connected with a plurality of evaporators in parallel;
the second stage circulation loop includes: the cold source modules are circulating loops formed by sequentially communicating a condenser, a first liquid storage tank, a second fluorine pump, a heat exchanger and a compressor;
each branch pipe is coupled and connected with the heat exchanger thermocouple in the corresponding second-stage circulation loop.
2. A fluorine pump multi-connected refrigeration system as claimed in claim 1, wherein a first throttle valve is further connected in series between the second fluorine pump and the heat exchanger;
the second fluorine pump is connected with a one-way valve in parallel.
3. The fluorine pump multi-connected refrigeration system as claimed in claim 2, wherein a first branch formed by sequentially connecting a first one-way valve, a compressor and an electromagnetic valve in series is further connected in series between the condenser and the heat exchanger;
and the first branch is also connected with a second one-way valve in parallel.
4. A fluorine pump multiple refrigeration system as claimed in claim 1, wherein a second liquid storage tank is connected in series between the first fluorine pump and the first main pipe.
5. A multi-connected fluorine pump refrigeration system as claimed in claim 4, wherein the first fluorine pump is at least two fluorine pumps connected in parallel.
6. The system as claimed in claim 4, wherein the first main pipe and the second main pipe are further communicated through a solenoid valve.
7. A fluorine pump multiple refrigerating system as claimed in claim 1, wherein a sprayer is further provided above the condenser.
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| CN201921875140.8U CN210951940U (en) | 2019-11-01 | 2019-11-01 | Fluorine pump multi-connected refrigeration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657597A (en) * | 2019-11-01 | 2020-01-07 | 深圳市艾特网能技术有限公司 | Fluorine pump multi-connected refrigeration system and control method thereof |
| CN114001516A (en) * | 2021-09-26 | 2022-02-01 | 中国船舶重工集团公司第七一九研究所 | Cooling system of marine equipment and ship |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657597A (en) * | 2019-11-01 | 2020-01-07 | 深圳市艾特网能技术有限公司 | Fluorine pump multi-connected refrigeration system and control method thereof |
| CN114001516A (en) * | 2021-09-26 | 2022-02-01 | 中国船舶重工集团公司第七一九研究所 | Cooling system of marine equipment and ship |
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