CN212109084U - Air conditioning system with natural cooling function - Google Patents
Air conditioning system with natural cooling function Download PDFInfo
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- CN212109084U CN212109084U CN202020538137.3U CN202020538137U CN212109084U CN 212109084 U CN212109084 U CN 212109084U CN 202020538137 U CN202020538137 U CN 202020538137U CN 212109084 U CN212109084 U CN 212109084U
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- natural cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 103
- 238000004378 air conditioning Methods 0.000 title claims abstract description 68
- 238000005057 refrigeration Methods 0.000 claims abstract description 103
- 239000003507 refrigerant Substances 0.000 claims abstract description 62
- 238000007906 compression Methods 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims description 9
- 125000003827 glycol group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000000576 supplementary Effects 0.000 description 2
- 230000002708 enhancing Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an air conditioning system with natural cooling function relates to air conditioning technology field to solve the poor technical problem of refrigeration effect under the natural cooling mode among the correlation technique. The compressor, the intermediate heat exchanger, the throttling device and the first indoor heat exchanger form a compression refrigeration loop. The circulating pump, the natural cooling device and the intermediate heat exchanger form an auxiliary refrigeration loop. The refrigerant in the auxiliary refrigeration loop and the refrigerant in the compression refrigeration loop can exchange heat in the intermediate heat exchanger. The air conditioning system further includes: the second indoor heat exchanger, first valve unit, second valve unit and controller. The second indoor heat exchanger, the circulating pump and the natural cooling device form a natural refrigeration loop, and the second indoor heat exchanger and the intermediate heat exchanger are arranged in parallel. The controller can switch the air-conditioning mode. The utility model is used for air conditioning.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to an air conditioning system with natural cooling function.
Background
With the innovation and development of distributed computing architectures such as artificial intelligence, cloud computing and big data, the data machine room serving as an information infrastructure bears more and more traffic. Because the equipment in the machine room generates a large amount of heat, uninterrupted cooling is usually required all the year round. In order to effectively reduce the energy consumption of the air conditioning system, a data machine room is usually provided with a composite air conditioning system with a natural cooling function, and the machine room is subjected to refrigeration regulation by utilizing a natural cooling source in a low-temperature season.
In the related art, an air conditioning system as shown in fig. 1 is disclosed. This air conditioning system includes: compressor 01, condenser 02, throttling device 03, evaporator 04, natural cooling device 05, first circulation pump 06, and second circulation pump 07. The compressor 01, the condenser 02, the throttling device 03 and the evaporator 04 are sequentially communicated to form a compression refrigeration loop. The natural cooling device 05 is communicated with the first circulation pump 06 and then connected to both ends of the condenser 02 to form a natural cooling loop. The second circulation pump 07 is provided in parallel with the compressor 01, and is connected between the outlet of the evaporator 04 and the inlet of the condenser 02. In low-temperature seasons, the compressor 01 is controlled to be closed, the first circulating pump 06 and the second circulating pump 07 are controlled to be opened, the air conditioning system can enter a natural refrigeration mode, and the machine room is subjected to refrigeration regulation by utilizing a natural cooling source through the natural cooling device 05.
However, when the natural cooling loop is opened and the temperature is adjusted by the natural cooling device 05, the heat exchange efficiency is low due to the multiple heat exchange, so that the air conditioning system cannot fully utilize the cold energy in the natural cold source, and the refrigeration effect is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air conditioning system with natural cooling function to improve the refrigeration effect of air conditioning system under the natural cooling mode.
In order to achieve the above object, an embodiment of the present invention provides an air conditioning system with a natural cooling function, including: the air conditioner comprises a compressor, a throttling device, a first indoor heat exchanger, a circulating pump and a natural cooling device. The compressor, the intermediate heat exchanger, the throttling device and the first indoor heat exchanger are communicated in sequence to form a compression refrigeration loop. The circulating pump, the natural cooling device and the intermediate heat exchanger are communicated to form an auxiliary refrigeration loop. The refrigerant in the auxiliary refrigeration loop and the refrigerant in the compression refrigeration loop can exchange heat in the intermediate heat exchanger. The air conditioning system further includes: the second indoor heat exchanger, first valve unit, second valve unit and controller. The second indoor heat exchanger is communicated with the circulating pump and the natural cooling device to form a natural refrigeration loop, and the second indoor heat exchanger and the intermediate heat exchanger are arranged in parallel. The first control valve set is arranged on the auxiliary refrigeration loop, and the second control valve set is arranged on the natural refrigeration loop. The controller is electrically connected with the compressor, the circulating pump, the first control valve group and the second control valve group and can control the opening or closing of the compressor, the circulating pump, the first control valve group and the second control valve group so as to enable the air conditioning system to enter a mechanical refrigeration mode, a natural refrigeration mode or a composite refrigeration mode.
The embodiment of the utility model provides an among the air conditioning system with natural cooling function, because compressor, middle heat exchanger, throttling arrangement and first indoor heat exchanger communicate in order, can form compression refrigeration circuit to air conditioning system can open mechanical refrigeration mode and utilize the compressor to refrigerate. Meanwhile, the circulating pump, the natural cooling device and the intermediate heat exchanger are communicated to form an auxiliary refrigeration loop, and the refrigerant in the auxiliary refrigeration loop and the refrigerant in the compression refrigeration loop can exchange heat in the intermediate heat exchanger, so that the natural cooling device can be started in a mechanical refrigeration mode, and the intermediate heat exchanger can be subjected to auxiliary heat dissipation through the natural cooling device. In addition, the second indoor heat exchanger is communicated with the circulating pump and the natural cooling device, so that a natural cooling loop can be formed, and the air conditioning system can start a natural cooling mode and utilize the natural cooling device to perform cooling. In addition, the compression refrigeration loop, the auxiliary refrigeration loop and the natural refrigeration loop can be simultaneously started, so that the air conditioning system enters a composite refrigeration mode, and meanwhile, the first indoor heat exchanger and the second indoor heat exchanger exchange heat with the indoor side to perform refrigeration regulation.
In the air conditioning system, the compressor, the circulating pump, the first control valve group and the second control valve group are controlled to be opened or closed by the controller, so that the air conditioning system can run in three modes. Compared with the prior art, when air conditioning system was in the natural cooling mode, because the refrigerant in the natural return circuit can directly carry out the heat transfer with the air of indoor side through the second indoor heat exchanger, effectively reduced the number of times of middle heat transfer to can effectively promote heat exchange efficiency, can utilize natural cold source to the at utmost, and then can effectively improve the refrigeration effect of air conditioning system under the natural cooling mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 diagram of an air conditioning system in the related art;
fig. 2 is a schematic diagram of an air conditioning system with a natural cooling function according to an embodiment of the present invention;
fig. 3 is a control schematic diagram of a controller in an air conditioning system with a natural cooling function according to an embodiment of the present invention.
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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The embodiment of the utility model provides an utensil natural cooling function's air conditioning system. As shown in fig. 2, the air conditioning system includes: the air conditioner includes a compressor 1, an intermediate heat exchanger 21, a throttle device 3, a first indoor heat exchanger 22, a circulation pump 4, and a natural cooling device 5. The compressor 1, the intermediate heat exchanger 21, the throttle device 3, and the first indoor heat exchanger 22 are sequentially communicated to form a compression refrigeration circuit. The circulation pump 4, the natural cooling device 5 and the intermediate heat exchanger 21 are communicated to form an auxiliary refrigeration circuit. The refrigerant in the auxiliary refrigeration circuit and the refrigerant in the compression refrigeration circuit can exchange heat in the intermediate heat exchanger 21. As shown in fig. 2 and 3, the air conditioning system further includes: a second indoor heat exchanger 23, a first valve group 6, a second valve group 7, and a controller. The second indoor heat exchanger 23 is communicated with the circulation pump 4 and the natural cooling device 5 to form a natural cooling loop, and the second indoor heat exchanger is arranged in parallel with the intermediate heat exchanger 21. The first control valve set 6 is arranged on the auxiliary refrigeration loop, and the second control valve set 7 is arranged on the natural refrigeration loop. The controller is electrically connected with the compressor 1, the circulating pump 4, the first control valve group 6 and the second control valve group 7, and can control the opening or closing of the compressor 1, the circulating pump 4, the first control valve group 6 and the second control valve group 7, so that the air conditioning system enters a mechanical refrigeration mode, a natural refrigeration mode or a composite refrigeration mode.
The embodiment of the utility model provides an among the air conditioning system, as shown in figure 2, because compressor 1, middle heat exchanger 21, throttling arrangement 3 and first indoor heat exchanger 22 communicate in order, can form the compression refrigeration return circuit to air conditioning system can open mechanical refrigeration mode and utilize compressor 1 to refrigerate. Meanwhile, the circulating pump 4, the natural cooling device 5 and the intermediate heat exchanger 21 are communicated to form an auxiliary refrigeration loop, and the refrigerant in the auxiliary refrigeration loop and the refrigerant in the compression refrigeration loop can exchange heat in the intermediate heat exchanger 21, so that the natural cooling device 5 can be started in the mechanical refrigeration mode, and the intermediate heat exchanger 21 is subjected to auxiliary heat dissipation through the natural cooling device 5. And because the second indoor heat exchanger 23 is communicated with the circulating pump 4 and the natural cooling device 5, a natural cooling loop can be formed, so that the air conditioning system can start a natural cooling mode and utilize the natural cooling device 5 to perform cooling. In addition, the compression refrigeration loop, the auxiliary refrigeration loop and the natural refrigeration loop can be simultaneously started, so that the air conditioning system enters a composite refrigeration mode and simultaneously utilizes the first indoor heat exchanger 22 and the second indoor heat exchanger 23 to exchange heat with the indoor side so as to adjust the indoor environment temperature.
When the air conditioning system is used for refrigerating and adjusting the data machine room, the specific working process is as follows:
when the outdoor environment temperature is high, the compressor 1, the circulating pump 4 and the first control valve group 6 can be controlled to be started through the controller, and the second control valve group 7 is closed. At this time, the compression refrigeration circuit and the auxiliary refrigeration circuit are in an open state. As shown by the arrows in fig. 2, in the compression refrigeration circuit, the low-temperature and low-pressure liquid refrigerant is absorbed in the first indoor heat exchanger 22 and is transformed into a low-temperature and low-pressure gaseous refrigerant, and at the same time, the refrigerant exchanges heat with the indoor side, so that the temperature of the indoor environment can be reduced. Then, the low-temperature and low-pressure gaseous refrigerant flows into the compressor 1, is pressurized in the compressor 1 to become a high-temperature and high-pressure gaseous refrigerant, and flows into the intermediate heat exchanger 21 under the action of the compressor 1. In the intermediate heat exchanger 21, the high-temperature and high-pressure gaseous refrigerant in the compression refrigeration circuit exchanges heat with the refrigerant in the auxiliary refrigeration circuit to be changed into a high-temperature and high-pressure liquid refrigerant, and then the high-temperature and high-pressure liquid refrigerant is decompressed by the throttling device 3 to be changed into a low-temperature and low-pressure liquid refrigerant and flows back to the first indoor heat exchanger 22, so that the circulation of the refrigerant is completed. In the auxiliary refrigeration loop, high-temperature refrigerant exchanges heat with the outdoor environment in the natural cooling device 5, the temperature of the refrigerant is reduced, and the refrigerant flows into the intermediate heat exchanger 21 under the driving action of the circulating pump 4. In the intermediate heat exchanger 21, the low-temperature refrigerant exchanges heat with the refrigerant in the compression refrigeration loop, the temperature of the refrigerant rises at the same time, and the high-temperature refrigerant flows back into the natural cooling device 5 to complete the circulation of the refrigerant. In the circulation, the compressor 1 is adopted to pressurize the refrigerant, so that the refrigerant can circulate in the compression refrigeration loop, namely, the mechanical refrigeration is realized through the compressor 1, and at the moment, the air conditioning system is in a mechanical refrigeration mode.
When the outdoor environment temperature is lower, the natural cold source in the environment is enough, and the refrigeration requirement of the machine room can be met only by utilizing the cold energy in the natural cold source. Therefore, the circulation pump 4 and the second valve group 7 can be controlled by the controller to be opened, and the compressor 1 and the first valve group 6 can be closed. At this time, the natural cooling circuit is in an open state. As shown by the arrow in fig. 2, in the natural cooling loop, the high-temperature refrigerant exchanges heat with the outdoor environment in the natural cooling device 5, the temperature of the refrigerant is reduced, and the refrigerant flows into the second indoor heat exchanger 23 under the driving action of the circulation pump 4. In the second indoor heat exchanger 23, the low-temperature refrigerant absorbs heat and becomes a high-temperature refrigerant, and at the same time, exchanges heat with the indoor side, thereby lowering the temperature of the indoor environment. Then the high-temperature refrigerant flows back into the natural cooling device 5 to complete the refrigerant circulation. In the above circulation, in the natural cooling device 5, the refrigerant in the natural cooling loop can exchange heat with the outdoor environment, and then the refrigerant flows into the second indoor heat exchanger 23, and exchanges heat with the indoor side through the second indoor heat exchanger 23, so that the purpose of adjusting the temperature of the indoor environment by using a natural cold source in the environment is achieved, and at this time, the air conditioning system is in a natural cooling mode.
When outdoor environment is not low enough, only lean on the unable refrigeration demand that satisfies of natural cold source, consequently, can open compressor 1, circulating pump 4, first valve unit 6 and second valve unit 7 through controller control. At this time, the compression refrigeration circuit, the auxiliary refrigeration circuit, and the natural refrigeration circuit are all in an open state. As shown by the arrows in fig. 2, when the first control valve set 6 and the second control valve set 7 are both opened, the refrigerant flowing out of the natural cooling device 5 can be divided into two portions. After flowing out of the natural cooling device 5, the first part of refrigerant can directly flow into the second indoor heat exchanger 23, and directly exchanges heat with the indoor side through the second indoor heat exchanger 23, so that the temperature of the indoor environment is reduced. The second part of the refrigerant flows out of the natural cooling device 5, and then flows into the intermediate heat exchanger 21, and exchanges heat with the refrigerant in the compression refrigeration circuit to assist the refrigerant in the compression refrigeration circuit in heat dissipation. Meanwhile, the refrigerant in the compression refrigeration loop circulates under the action of the compressor 1, and exchanges heat with the indoor side through the first indoor heat exchanger 22, so that the temperature of the indoor environment is reduced. In the above process, heat exchange is performed with the indoor side through the first indoor heat exchanger 22 and the second indoor heat exchanger 23, that is, mechanical refrigeration and natural refrigeration are simultaneously realized, and the air conditioning system is in a composite refrigeration mode.
The air conditioning system can realize the operation of three modes according to the difference of the outdoor environment temperature, and effectively utilizes the natural cold source, thereby effectively reducing the energy consumption of the air conditioning system in low-temperature seasons. Meanwhile, when the air conditioning system is in the natural cooling mode, because the refrigerant in the natural loop can directly exchange heat with the air at the indoor side through the second indoor heat exchanger 23, the number of times of intermediate heat exchange is effectively reduced, so that the heat exchange efficiency can be effectively improved, a natural cold source can be utilized to the maximum extent, and the cooling effect of the air conditioning system in the natural cooling mode can be further improved.
In addition, under the composite refrigeration mode and the compression refrigeration mode, the refrigerant in the auxiliary refrigeration loop can assist the refrigerant in the compression refrigeration loop to dissipate heat, so that the refrigeration effect of the compression refrigeration loop can be effectively improved.
The embodiment of the utility model provides an among the air conditioning system with natural cooling function, the structure in supplementary refrigeration return circuit and natural cooling return circuit is not only.
Illustratively, as shown in fig. 2, the intermediate heat exchanger 21 communicates with the circulation pump 4 through a first connection pipe 81, and communicates with the free cooling device 5 through a second connection pipe 82. The first control valve group 6 includes a first solenoid valve 61 provided on the first connection pipe 81, and a second solenoid valve 62 provided on the second connection pipe 82. The second indoor heat exchanger 23 is connected to the circulation pump 4 through a third connection pipe 83, and is connected to the natural cooling device 5 through a fourth connection pipe 84. The second control valve group 7 includes a third solenoid valve 71 provided on the third connection pipe 83, and a fourth solenoid valve 72 provided on the fourth connection pipe 84. When the air conditioning system is in operation, the controller can control the first electromagnetic valve 61 and the second electromagnetic valve 62 to be opened, and the third electromagnetic valve 71 and the fourth electromagnetic valve 72 to be closed, so that the refrigerant flowing out of the natural cooling device 5 directly flows into the intermediate heat exchanger 21, and the air conditioning system enters a compression refrigeration mode. In addition, the controller may control the third and fourth solenoid valves 71 and 72 to be opened and the first and second solenoid valves 61 and 62 to be closed, so that the refrigerant flowing out of the natural cooling apparatus 5 directly flows into the second indoor heat exchanger 23, and the air conditioning system may enter the natural cooling mode. In addition, the controller can control the first solenoid valve 61, the second solenoid valve 62, the third solenoid valve 71 and the fourth solenoid valve 72 to be opened, so that the refrigerant flowing out of the natural cooling device 5 is divided into two parts, the first part flows into the second indoor heat exchanger 23, the second part flows into the intermediate heat exchanger 21, and the air conditioning system enters the composite cooling mode. The auxiliary refrigeration loop and the natural refrigeration loop are designed to be of the structure, so that the structure is simple, and the control is more convenient.
For example, the circulating pump 4 and the natural cooling device 5 may both be respectively communicated with the intermediate heat exchanger 21 and the second indoor heat exchanger 23 through a three-way pipe, and a three-way valve for controlling the flow direction of the refrigerant is provided on each three-way pipe.
It should be noted that, in the air conditioning system with natural cooling function provided in the embodiment of the present invention, the setting position of the circulation pump 4 is not unique. For example, as shown in fig. 2, the circulation pump 4 may be disposed on the liquid outlet side of the natural cooling device 5, and in addition, the circulation pump 4 may also be disposed on the liquid inlet side of the natural cooling device 5, which is not limited herein.
Further, in order to realize mode switching, the air conditioning system further comprises an outdoor temperature sensor electrically connected with the controller. The controller is used for acquiring outdoor temperature information detected by the outdoor temperature sensor and controlling the compressor 1, the circulating pump 4, the first control valve group 6 and the second control valve group 7 to be turned on or turned off according to the outdoor temperature information.
Wherein, the outdoor temperature sensor can transmit the outdoor temperature information to the controller in the form of electric signals.
The embodiment of the utility model provides an among the air conditioning system, the controller can be according to the outdoor temperature information of receipt, and compressor 1, circulating pump 4, first valve unit 6 and second valve unit 7 are opened or closed in the control. Specifically, when the outdoor temperature T is more than T1In time, the controller can control to start the compressor 1, the circulating pump 4 and the first control valve group 6, so that the air conditioning system enters a mechanical refrigeration mode. When the outdoor temperature T is less than T2When the air conditioner is in the natural cooling mode, the controller can control the compressor 1 and the first control valve group 6 to be closed and control the second control valve group 7 to be opened, so that the air conditioner system enters the natural cooling mode. When the outdoor temperature t2＜T＜t1(t2＜t1) When the air-conditioning system is in the compound refrigeration mode, the controller can control the compressor 1, the circulating pump 4, the first control valve group 6 and the second control valve group 7 to be started, so that the air-conditioning system enters the compound refrigeration mode.
The utility model discloses among the implementation air conditioning system who provides has the natural cooling function, the nature of the refrigerant in natural cooling return circuit and the supplementary refrigeration return circuit is not unique.
For example, the refrigerant in the natural refrigeration circuit and the auxiliary refrigeration circuit may be glycol solution. The antifreezing ethylene glycol solution is used as a refrigerant for cooling, an electric heating system is not needed for heating, the risk of freezing and tube explosion of the pipeline is effectively avoided, the low-temperature electric heating antifreezing energy consumption is saved, and the heat exchange efficiency is effectively improved.
The refrigerant in the natural refrigeration circuit and the auxiliary refrigeration circuit may be a refrigerant such as freon, R22, and the like, and is not particularly limited herein.
The embodiment of the utility model provides an among the air conditioning system with natural cooling function, natural cooling device 5's type is not only.
As an example, the free cooling device 5 may be a closed cooling tower. The closed cooling tower has high heat exchange efficiency, can effectively reduce energy loss, and meanwhile, the refrigeration working medium can be recycled, so that the maintenance cost is low.
As an example, the natural cooling device 5 may be a dry cooler.
Further, in order to enhance the heat exchange effect of the intermediate heat exchanger 21, the intermediate heat exchanger 21 may be a counter-flow heat exchanger. The counter-flow heat exchanger has higher heat exchange efficiency, thereby reducing energy loss in the heat exchange process and improving the utilization rate of a natural cold source.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of protection of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An air conditioning system having a natural cooling function, comprising: the system comprises a compressor, an intermediate heat exchanger, a throttling device, a first indoor heat exchanger, a circulating pump and a natural cooling device; wherein the compressor, the intermediate heat exchanger, the throttling device and the first indoor heat exchanger are communicated in sequence to form a compression refrigeration loop; the circulating pump, the natural cooling device and the intermediate heat exchanger are communicated to form an auxiliary refrigeration loop; the refrigerant in the auxiliary refrigeration loop and the refrigerant in the compressor refrigeration loop can generate heat exchange in the intermediate heat exchanger;
the air conditioning system further includes:
the second indoor heat exchanger is communicated with the circulating pump and the natural cooling device to form a natural refrigeration loop, and the second indoor heat exchanger is connected with the intermediate heat exchanger in parallel;
the first control valve group is arranged on the auxiliary refrigeration loop;
the second control valve group is arranged on the natural refrigeration loop;
and the controller is electrically connected with the compressor, the circulating pump, the first control valve group and the second control valve group and can control the opening or closing of the compressor, the circulating pump, the first control valve group and the second control valve group so as to enable the air conditioning system to enter a mechanical refrigeration mode or a natural refrigeration mode or a composite refrigeration mode.
2. The air conditioning system with natural cooling function according to claim 1, wherein the intermediate heat exchanger is communicated with the circulation pump through a first connection pipe and communicated with the natural cooling device through a second connection pipe; the first control valve group comprises a first electromagnetic valve arranged on the first connecting pipe and a second electromagnetic valve arranged on the second connecting pipe;
the second indoor heat exchanger is communicated with the circulating pump through a third connecting pipe and is communicated with the natural cooling device through a fourth connecting pipe; the second control valve group comprises a third electromagnetic valve arranged on the third connecting pipe and a fourth electromagnetic valve arranged on the fourth connecting pipe.
3. The air conditioning system with natural cooling function according to claim 1, further comprising an outdoor temperature sensor electrically connected to the controller, wherein the controller is configured to obtain outdoor temperature information detected by the outdoor temperature sensor and control the compressor, the circulation pump, the first control valve set, and the second control valve set to be turned on or off according to the outdoor temperature information.
4. The air conditioning system with natural cooling function as claimed in claim 1, wherein the refrigerant in the natural cooling circuit and the auxiliary cooling circuit is glycol solution.
5. The air conditioning system with natural cooling function according to claim 1, wherein the natural cooling device is a closed cooling tower.
6. The air conditioning system with natural cooling function according to claim 1, wherein the intermediate heat exchanger is a counter-flow heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020538137.3U CN212109084U (en) | 2020-04-13 | 2020-04-13 | Air conditioning system with natural cooling function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020538137.3U CN212109084U (en) | 2020-04-13 | 2020-04-13 | Air conditioning system with natural cooling function |
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| CN212109084U true CN212109084U (en) | 2020-12-08 |
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| CN202020538137.3U Active CN212109084U (en) | 2020-04-13 | 2020-04-13 | Air conditioning system with natural cooling function |
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