CN111595089A - Machine heat dissipation system using natural water - Google Patents
Machine heat dissipation system using natural water Download PDFInfo
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- CN111595089A CN111595089A CN202010326933.5A CN202010326933A CN111595089A CN 111595089 A CN111595089 A CN 111595089A CN 202010326933 A CN202010326933 A CN 202010326933A CN 111595089 A CN111595089 A CN 111595089A
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- water
- heat dissipation
- pipeline
- cooling
- water pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/001—Arrangement or mounting of control or safety devices for cryogenic fluid systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/04—Controlling heat transfer
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a machine cooling system using natural water, which comprises a first pipeline, a second pipeline, a third pipeline, a control unit and a cooling water tank of a machine to be cooled; the heat dissipation water tank comprises a heat dissipation outlet and a heat dissipation inlet; the first pipeline comprises a first water pump and an ice water unit; the ice water unit is provided with a first water inlet end and a first water outlet end which are communicated with each other, and a second water outlet end and a second water inlet end which are communicated with each other; the heat dissipation outlet is sequentially connected with the first water pump, the first water inlet end, the first water outlet end and the heat dissipation outlet; the second pipeline comprises an ice water unit, a cooling water tower and a second water pump; the second water outlet end is sequentially connected with the cooling water tower, the second water pump and the second water inlet end; the third pipeline comprises a cooling water tower and a third water pump; the heat dissipation outlet is sequentially connected with the cooling water tower, the third water pump and the heat dissipation inlet; the control unit controls the on-off of the first pipeline, the second pipeline and the third pipeline. The machine cooling system can realize water-cooling heat dissipation of two modes on a machine, and effectively reduces heat dissipation energy consumption.
Description
Technical Field
The invention relates to the technical field of heat dissipation, in particular to a machine heat dissipation system utilizing natural water.
Background
The existing machine equipment, such as production and manufacturing machine equipment and the like, can generate a large amount of heat due to frequent continuous operation for multiple days, and if the heat cannot be dissipated in time, the machine is easily damaged. The heat dissipation system of the machine is therefore very important.
In order to avoid damage caused by overheating of the machine, a fan or a water cooling method is generally adopted for heat dissipation. However, the former has low heat dissipation efficiency; the latter has high heat dissipation efficiency, but high energy consumption, and cannot be adjusted according to the ambient temperature of the machine, so that unnecessary energy consumption is generated by a machine heat dissipation system.
Therefore, it is necessary to design a machine heat dissipation system using natural water to solve the above problems.
Disclosure of Invention
The invention aims to provide a machine heat dissipation system utilizing natural water, which can realize water-cooling heat dissipation of two modes on a machine and effectively reduce heat dissipation energy consumption.
In order to achieve the purpose, the invention adopts the following technical scheme:
a machine cooling system using natural water comprises a first pipeline, a second pipeline, a third pipeline, a control unit and a cooling water tank of a machine to be cooled; the heat dissipation water tank comprises a heat dissipation outlet and a heat dissipation inlet;
the first pipeline comprises a first water pump and an ice water unit; the ice water unit is provided with a first water inlet end and a first water outlet end which are communicated; the heat dissipation outlet is sequentially connected with the first water pump, the first water inlet end, the first water outlet end and the heat dissipation outlet through a water pipe;
the second pipeline comprises the ice water unit, a cooling water tower and a second water pump; the ice water unit is also provided with a second water outlet end and a second water inlet end which are communicated; the second water outlet end is sequentially connected with the cooling water tower, the second water pump and the second water inlet end through a water pipe;
the third pipeline comprises the cooling water tower and a third water pump; the heat dissipation outlet is sequentially connected with the cooling water tower, the third water pump and the heat dissipation inlet through water pipes;
the control unit controls the on-off of the first pipeline, the second pipeline and the third pipeline.
Further, the machine cooling system further comprises a temperature sensor for sensing an ambient temperature;
when the environment temperature is greater than or equal to a preset temperature, the control unit controls the first pipeline and the second pipeline to be conducted, and the first water pump, the ice water unit, the cooling water tower and the second water pump are all in working states;
when the environment temperature is lower than the preset temperature, the control unit controls the third pipeline to be conducted, the cooling tower and the third water pump are in working states, and the ice water unit is in a shutdown state.
Furthermore, the first pipeline also comprises two first valves for conducting or blocking the first pipeline; the two first valves are respectively arranged close to the first water inlet end and the first water outlet end and are connected with the control unit.
Furthermore, the second pipeline also comprises two second valves for conducting or blocking the second pipeline; the two second valves are respectively arranged close to the second water outlet end and the second water inlet end and are connected with the control unit.
Furthermore, the third pipeline further comprises a third valve and a fourth valve for connecting or blocking the third pipeline; the water pipe between the heat dissipation outlet and the first water pump is connected with the water pipe between the second water outlet end and the cooling water tower through the third valve; the third water pump is connected with the heat dissipation inlet through a fourth valve; the third valve and the fourth valve are both connected with the control unit.
Further, the third water pump is the first water pump or the second water pump.
Furthermore, the first water pump and the second water pump are connected in parallel with a standby water pump.
Further, the ice water unit comprises an evaporator and a condenser; the first water inlet end and the first water outlet end are communicated with the evaporator; the second water outlet end and the second water inlet end are communicated with the condenser.
Further, the first pipeline further comprises a buffer water tank, and the buffer water tank is connected between the heat dissipation outlet and the first water pump through a water pipe.
Furthermore, the water inlet end and the water outlet end of the buffer water tank are provided with fifth valves.
The invention has the beneficial effects that: according to the machine cooling system utilizing natural water, the control unit can be used for controlling the conduction of the first pipeline, so that the water in the cooling water tank of the machine to be cooled is circularly cooled through the ice water main machine; meanwhile, the control unit can be used for controlling the conduction of the second pipeline, so that the circulating cooling heat dissipation of the ice water main machine through the cooling water tower is realized; the control unit can also be used for controlling the conduction of the third pipeline, so that the circulating cooling of the water in the heat dissipation water tank of the machine to be dissipated is realized only through the cooling water tower. The machine cooling system can realize water-cooling heat dissipation of two modes, and can realize automatic switching according to the ambient temperature of the heat dissipation machine, thereby effectively reducing the heat dissipation energy consumption.
Drawings
FIG. 1 is a schematic diagram of a machine heat dissipation system utilizing natural water provided by the present invention;
FIG. 2 is a block diagram of a control unit of the machine heat dissipation system using natural water provided by the present invention;
FIG. 3 is a schematic diagram of a first embodiment of a system for cooling a machine using natural water according to the present invention;
fig. 4 is a schematic diagram of a second embodiment of the machine cooling system using natural water according to the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 4, a machine cooling system using natural water includes a first pipeline 100, a second pipeline 200, a third pipeline 300, a control unit 50, a cooling water tank (not shown) of a machine to be cooled; the heat dissipation water tank comprises a heat dissipation outlet and a heat dissipation inlet; the first pipeline 100 and the third pipeline 300 are both communicated with the heat dissipation outlet and the heat dissipation inlet so as to realize the circulating cooling of the water in the heat dissipation water tank through two circulating water paths; the control unit 50 controls the on/off of the first pipeline 100, the second pipeline 200 and the third pipeline 300.
Specifically, in the machine cooling system, the first pipeline 100 includes a first water pump 20 and an ice water unit 10; the ice water unit 10 is provided with a first water inlet end and a first water outlet end which are communicated; the heat dissipation outlet is sequentially connected with the first water pump 20, the first water inlet end, the first water outlet end and the heat dissipation outlet through a water pipe; when the water circulation cooling device is used, the first water pump 20 conveys water in the heat dissipation water tank to the ice water unit 10, and the water is conveyed back to the heat dissipation water tank after being cooled by the ice water unit 10, so that the water in the heat dissipation water tank is cooled circularly. The water circulation line in the first pipe 100 is shown by the arrows in fig. 3.
Wherein, the water inlet end and the water outlet end of the first water pump 20 are both provided with a first water pump valve 21. The first water pump valve 21 at the water inlet end is mainly used for facilitating maintenance and installation, and the first water pump valve 21 at the water outlet end is mainly used for adjusting the working condition of the first water pump 20, so that the flow is limited, and the water pump valve can be used as maintenance equipment. The first water pump 20 is also connected with a standby water pump 70 in parallel; the water inlet end and the water outlet end of the standby water pump 70 are both provided with standby water pump valves 71. The two standby water pump valves 71 function in the same manner as the two first water pump valves 21, respectively.
In the machine cooling system, the first pipeline 100 further includes two first valves 110. The two first valves 100 are respectively disposed near the first water inlet end and the first water outlet end, and connected to the control unit, for connecting or disconnecting the water pipes in the first pipeline 100.
Further, a buffer water tank 60 is connected to the first pipeline 100, and the buffer water tank 60 is disposed between the heat dissipation outlet and the first water pump 20. Wherein, the water inlet end and the water outlet end of the buffer water tank 60 are both provided with a fifth valve 61. Through setting up this buffer tank 60, can prevent that the system from taking place air vibrations, play carminative effect.
In the machine heat dissipation system, the second pipeline 200 includes the above-mentioned ice water unit 10, the cooling water tower 30 and the second water pump 40; the ice water unit 10 is also provided with a second water outlet end and a second water inlet end which are communicated; the second water outlet end is connected with the cooling tower 30, the second water pump 40 and the second water inlet end in sequence through a water pipe. When the water circulation cooling device is used, the second water pump 40 conveys water in the cooling water tower 30 to the ice water unit 10, heat of the ice water unit 10 is taken away and transferred to the cooling water tower 30 after heat exchange is carried out between the water and the ice water unit 10, and heat dissipation is carried out by using the cooling water tower 30, so that the circulation heat dissipation cooling of the ice water unit 10 by using the cooling water tower 30 is realized. The water circulation line in the second pipe 200 is shown by the arrows in fig. 3.
The ice water unit 10 comprises an evaporator 11 and a condenser 12; the first water inlet end and the first water outlet end are communicated with the evaporator 11; the second water outlet end and the second water inlet end are communicated with the condenser 12. When the evaporator works, heat exchange is carried out between the refrigerant in the evaporator 11 and the water output by the radiating water tank, so that the water is cooled by cooling water. The condenser 12 outputs heat energy and condenses a refrigerant during a cooling process. In the present invention, the condenser 12 transfers heat to the cooling tower 30 by exchanging heat with the water exiting the cooling tower 30 and through the water in the water line. In addition, since the structure and the operation principle of the ice water chiller 10 are the prior art, the refrigerant circulation cooling process between the evaporator 11 and the condenser 12 will not be described in detail.
The cooling tower 30 is provided with a fan 31, and the rotation of the fan 31 forms a heat dissipation airflow in the cooling tower 30, so that the water in the cooling tower 30 is rapidly cooled, and the purpose of heat dissipation and cooling is achieved.
The water inlet end and the water outlet end of the second water pump 40 are both provided with a second water pump valve 41; the two second water pump valves 41 function in the same manner as the two first water pump valves 21 described above, respectively. The second water pump 40 is also connected in parallel with a standby water pump 70; the water inlet end and the water outlet end of the standby water pump 70 are also provided with standby water pump valves 71.
In the machine cooling system, the second pipeline 200 further includes two second valves 210. The two second valves 210 are respectively disposed near the second water outlet end and the second water inlet end, and connected to the control unit for connecting or disconnecting the water pipes in the second pipeline 200.
In the machine cooling system, the third pipeline 300 includes the cooling tower 30 and the third water pump; wherein, the heat dissipation outlet is connected with the cooling water tower 30, the third water pump and the heat dissipation inlet in sequence through water pipes. During the use, the third water pump is carried to cooling tower 30 with the water in the heat dissipation water tank, utilizes cooling tower 30 to carry back again after cooling in the heat dissipation water tank to the realization carries out circulative cooling to the water in the heat dissipation water tank.
In the machine cooling system, the third pipeline 300 further includes a third valve 310 and a fourth valve 320. The water pipe between the heat dissipation outlet and the first water pump 20 is connected with the water pipe between the second water outlet end and the cooling tower 30 through a third valve 310; the third water pump is connected with the heat dissipation inlet through a fourth valve 320; the third valve 310 and the fourth valve 320 are both connected to the control unit for connecting or disconnecting the water pipe in the third pipeline 300.
Preferably, the third water pump in the third pipeline 300 is the first water pump 20 or the second water pump 40, so as to omit one water pump. The water circulation line of the third pipeline 300 using the first water pump 20 is shown by the arrow in fig. 4.
The machine cooling system further comprises a temperature sensor 51 for sensing the ambient temperature; when the ambient temperature is greater than or equal to the preset temperature, the control unit controls the first pipeline 100 and the second pipeline 200 to be conducted, and the first water pump 20, the ice water unit 10, the cooling water tower 30 and the second water pump 40 are all in a working state; when the ambient temperature is lower than the preset temperature, the control unit controls the third pipeline 300 to be conducted, the cooling tower 30 and the third water pump are in a working state, and the ice water unit 10 is in a shutdown state. The preset temperature can be set correspondingly according to actual conditions, for example, the preset temperature can be set to 20 ℃.
The working principle of the machine cooling system of the invention is as follows:
when the ambient temperature sensed by the temperature sensor 51 is greater than or equal to a preset temperature (e.g. summer), the control unit 50 controls the first valve 110 to close, so that the water pipe in the first pipeline 100 is conducted; the first water pump 20 conveys water in the heat dissipation water tank to the ice water main unit 10, and the water is conveyed back to the heat dissipation water tank after being cooled by the ice water main unit 10. Meanwhile, the control unit 50 also controls the second valve 210 to be closed, so that the water pipe in the second pipeline 200 is conducted; the second water pump 40 delivers the water in the cooling water tower 30 to the ice water main unit 10, the heat of the ice water main unit is taken away and transferred to the cooling water tower 30 after the heat exchange between the water and the ice water main unit 10, and the heat transferred to the cooling water tower 30 is dissipated to the atmosphere by the fan 31.
When the ambient temperature is lower than the preset temperature (e.g., in winter), the control unit 50 controls the third valve 310 and the fourth valve 320 to be closed, so that only the water pipe of the third pipeline 300 is conducted; the third water pump transports the water in the heat dissipation water tank to the cooling water tower 30, so that the heat in the heat dissipation water tank is transferred to the cooling water tower, the heat transferred to the cooling water tower 30 is dissipated to the atmosphere by the fan 31, and the water cooled in the cooling water tower 30 is transported back to the heat dissipation water tank.
Therefore, the machine cooling system can realize two modes of water cooling and can realize automatic switching according to the ambient temperature of the cooling machine, thereby effectively reducing the cooling energy consumption.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A machine cooling system using natural water is characterized by comprising a first pipeline, a second pipeline, a third pipeline, a control unit and a cooling water tank of a machine to be cooled; the heat dissipation water tank comprises a heat dissipation outlet and a heat dissipation inlet;
the first pipeline comprises a first water pump and an ice water unit; the ice water unit is provided with a first water inlet end and a first water outlet end which are communicated; the heat dissipation outlet is sequentially connected with the first water pump, the first water inlet end, the first water outlet end and the heat dissipation outlet through a water pipe;
the second pipeline comprises the ice water unit, a cooling water tower and a second water pump; the ice water unit is also provided with a second water outlet end and a second water inlet end which are communicated; the second water outlet end is sequentially connected with the cooling water tower, the second water pump and the second water inlet end through a water pipe;
the third pipeline comprises the cooling water tower and a third water pump; the heat dissipation outlet is sequentially connected with the cooling water tower, the third water pump and the heat dissipation inlet through water pipes;
the control unit controls the on-off of the first pipeline, the second pipeline and the third pipeline.
2. The machine cooling system of claim 1, further comprising a temperature sensor for sensing an ambient temperature;
when the environment temperature is greater than or equal to a preset temperature, the control unit controls the first pipeline and the second pipeline to be conducted, and the first water pump, the ice water unit, the cooling water tower and the second water pump are all in working states;
when the environment temperature is lower than the preset temperature, the control unit controls the third pipeline to be conducted, the cooling tower and the third water pump are in working states, and the ice water unit is in a shutdown state.
3. The machine coolant system of claim 2 wherein the first conduit further comprises two first valves for opening or closing the first conduit; the two first valves are respectively arranged close to the first water inlet end and the first water outlet end and are connected with the control unit.
4. The machine coolant system of claim 2 wherein the second conduit further comprises two second valves for opening or closing the second conduit; the two second valves are respectively arranged close to the second water outlet end and the second water inlet end and are connected with the control unit.
5. The machine coolant system of claim 2 wherein the third conduit further comprises a third valve and a fourth valve for opening or closing the third conduit; the water pipe between the heat dissipation outlet and the first water pump is connected with the water pipe between the second water outlet end and the cooling water tower through the third valve; the third water pump is connected with the heat dissipation inlet through a fourth valve; the third valve and the fourth valve are both connected with the control unit.
6. The machine cooling system of any one of claims 1 to 5, wherein the third water pump is the first water pump or the second water pump.
7. The machine heat dissipation system of claim 6, wherein the first water pump and the second water pump are both connected in parallel with a backup water pump.
8. The machine heat dissipation system of claim 1, wherein the chiller comprises an evaporator and a condenser; the first water inlet end and the first water outlet end are communicated with the evaporator; the second water outlet end and the second water inlet end are communicated with the condenser.
9. The machine heat dissipation system of claim 1, wherein the first pipeline further comprises a buffer water tank connected between the heat dissipation outlet and the first water pump through a water pipe.
10. The machine cooling system of claim 9, wherein the inlet end and the outlet end of the buffer tank are provided with fifth valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326933.5A CN111595089A (en) | 2020-04-23 | 2020-04-23 | Machine heat dissipation system using natural water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326933.5A CN111595089A (en) | 2020-04-23 | 2020-04-23 | Machine heat dissipation system using natural water |
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| CN111595089A true CN111595089A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010326933.5A Pending CN111595089A (en) | 2020-04-23 | 2020-04-23 | Machine heat dissipation system using natural water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050536A (en) * | 2020-09-15 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Constant-temperature cooling water circulation supply system and circulation supply method |
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| EP0059629A1 (en) * | 1981-03-03 | 1982-09-08 | Thermocycle (U.K.) Limited | Filters |
| CN102735007A (en) * | 2012-06-04 | 2012-10-17 | 中国核电工程有限公司 | All-year cold load energy-saving support system for nuclear waste plant processes of nuclear power station |
| CN202630282U (en) * | 2012-06-20 | 2012-12-26 | 江南大学 | Closed cooling tower refrigerating system applied to internet data center (IDC) machine room |
| CN204301357U (en) * | 2014-10-11 | 2015-04-29 | 武汉福星生物药业有限公司 | Energy-saving circulating operation system of water chilling unit |
| CN105571191A (en) * | 2016-01-29 | 2016-05-11 | 吉首大学 | Circulating system of refrigerating and heating central air conditioner pump |
-
2020
- 2020-04-23 CN CN202010326933.5A patent/CN111595089A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0059629A1 (en) * | 1981-03-03 | 1982-09-08 | Thermocycle (U.K.) Limited | Filters |
| CN102735007A (en) * | 2012-06-04 | 2012-10-17 | 中国核电工程有限公司 | All-year cold load energy-saving support system for nuclear waste plant processes of nuclear power station |
| CN202630282U (en) * | 2012-06-20 | 2012-12-26 | 江南大学 | Closed cooling tower refrigerating system applied to internet data center (IDC) machine room |
| CN204301357U (en) * | 2014-10-11 | 2015-04-29 | 武汉福星生物药业有限公司 | Energy-saving circulating operation system of water chilling unit |
| CN105571191A (en) * | 2016-01-29 | 2016-05-11 | 吉首大学 | Circulating system of refrigerating and heating central air conditioner pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050536A (en) * | 2020-09-15 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Constant-temperature cooling water circulation supply system and circulation supply method |
| CN112050536B (en) * | 2020-09-15 | 2021-09-21 | 安徽江淮汽车集团股份有限公司 | Constant-temperature cooling water circulation supply system and circulation supply method |
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Application publication date: 20200828 |
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