CN219288004U - Air conditioning system and base station with fresh air module - Google Patents

Abstract

The utility model discloses an air conditioning system and a base station with a fresh air module, which relate to the field of data center design and include: an evaporative cooling unit, including a first compressor, an outdoor heat exchanger, an indoor heat exchanger and a first control valve; The module includes a heat exchanger, a fresh air indoor unit, and a second compressor; the heat exchanger includes a first heat exchange channel and a second heat exchange channel; the refrigerant in the first heat exchange channel is used to communicate with the second heat exchange channel The refrigerant is used for heat exchange; the first heat exchange channel is connected in parallel with the first control valve through the first branch; the inlet of the second heat exchange channel is connected with the outlet of the fresh air heat exchanger through a pipeline, and the inlet of the fresh air heat exchanger is connected with the outlet of the fresh air heat exchanger. The outlet of the second compressor is communicated with through a pipeline, and the inlet of the second compressor is communicated with the outlet of the second heat exchange passage through a pipeline. Among them, the heat exchanger recovers the waste heat of the evaporative cooling unit and uses it to heat the fresh air module, which solves the problem of waste heat waste of the evaporative cooling unit.

Description

Air conditioning system and base station with fresh air module

technical field

The utility model relates to the field of data center design, in particular to an air conditioning system with a fresh air module and a base station.

Background technique

With the acceleration of digital transformation and upgrading in various industries, especially the rapid popularization and application of new technologies such as 5G, the total amount of data in the whole society has exploded, the demand for data resource storage, computing and application has increased significantly, and data centers are also developing rapidly. The scale of data center construction is getting bigger and bigger, and the energy consumption is getting higher and higher. However, IT equipment in the data center converts electrical energy into heat energy. When cooling the unit.

Existing evaporative cooling units only have a cooling function, but no heating function, so the waste heat of the evaporative cooling unit is usually dissipated into the environment, resulting in energy waste.

Utility model content

The embodiment of the utility model provides an air conditioning system with a fresh air module and a base station, which solves the waste heat waste problem of the evaporative cooling unit.

In order to achieve the above object, the utility model adopts the following technical solutions:

In a first aspect, the utility model provides an air conditioning system with a fresh air module, and the air conditioning system with a fresh air module includes: an evaporative cooling unit and a fresh air module.

The evaporative cooling unit includes a first compressor, an outdoor heat exchanger, an indoor heat exchanger, and a first control valve; the outlet of the first compressor communicates with the inlet of the outdoor heat exchanger through pipelines, and the outdoor The outlet of the heat exchanger is connected with the inlet of the indoor heat exchanger through a pipeline, and the outlet of the indoor heat exchanger is connected with the inlet of the first compressor through a pipeline; the first control valve is connected in series with the On the pipeline between the outlet of the outdoor heat exchanger and the inlet of the indoor heat exchanger, the first control valve is used to control the connection between the outlet of the outdoor heat exchanger and the inlet of the indoor heat exchanger The pipeline is turned on or cut off.

The fresh air module includes a heat exchanger, a fresh air indoor unit, a second control valve, and a second compressor; the heat exchanger includes a first heat exchange channel and a second heat exchange channel; the refrigeration in the first heat exchange channel The refrigerant is used to exchange heat with the refrigerant in the second heat exchange channel; the first heat exchange channel is connected in parallel with the first control valve through a first branch; the second control valve is connected in series with the On the first branch, it is used to control the conduction or cut-off of the first branch; the fresh air indoor unit includes a casing, a fresh air heat exchanger and a fan, the fresh air heat exchanger and the fan are located in the casing, the The casing has a fresh air inlet, a fresh air exhaust port and a fresh air supply port; the inlet of the second heat exchange channel is connected with the outlet of the fresh air heat exchanger through a pipeline, and the inlet of the fresh air heat exchanger is connected with the first The outlets of the two compressors are connected through pipelines, and the inlet of the second compressor is connected with the outlet of the second heat exchange channel through pipelines.

The refrigerant in the pipeline of the evaporative cooling unit of the utility model passes through the first heat exchange channel, the refrigerant in the pipeline of the fresh air module passes through the second heat exchange channel, and the refrigerant in the first heat exchange channel and the second heat exchange channel The refrigerant in the evaporative cooling unit exchanges heat, so that the waste heat emitted by the evaporative cooling unit can be recovered to the fresh air module for use, so that the refrigerant in the fresh air module absorbs the refrigeration of the evaporative cooling unit in the first heat exchange channel in the second heat exchange channel The heat emitted by the agent prevents the heat waste of the evaporative cooling unit and reduces the total energy consumption, which is beneficial to energy saving.

Preferably, the fresh air module further includes: a fresh air outdoor unit, a third control valve, a fourth control valve, a fifth control valve, a sixth control valve, a seventh control valve and an eighth control valve.

The third control valve is connected in series on the pipeline between the inlet of the second compressor and the outlet of the second heat exchange channel, and is used to control the inlet of the second compressor and the second heat exchange channel. The pipeline between the outlets of the channels is connected or cut off.

The fresh air outdoor unit is connected in parallel with the heat exchanger and the third control valve through a second branch.

The fourth control valve is connected in series with the second branch, and is used to control the conduction or cutoff of the second branch.

The fifth control valve is connected in series on the pipeline between the outlet of the second compressor and the inlet of the fresh air heat exchanger, and is used to control the connection between the outlet of the second compressor and the inlet of the fresh air heat exchanger. The pipeline between the inlets is open or cut off.

The sixth control valve is connected in series on the pipeline between the inlet of the second compressor and the outlet of the second heat exchange channel, and is used to control the inlet of the second compressor and the second heat exchange channel. The pipeline between the outlets of the channels is connected or cut off.

The seventh control valve is connected in parallel with the second compressor and the fifth control valve through a third branch, and is used to control whether the third branch is turned on or off.

The eighth control valve is connected in parallel with the second compressor and the sixth control valve through a fourth branch, and is used to control the fourth branch to be turned on or off.

Preferably, the fresh air module further includes a first throttling device, and the first throttling device is connected in series on the pipeline between the inlet of the second heat exchange channel and the outlet of the fresh air heat exchanger.

Preferably, the air conditioning system with a fresh air module further includes a ninth control valve, a fluorine pump module, a tenth control valve, an eleventh control valve and a twelfth control valve.

The ninth control valve is connected in series on the pipeline between the inlet of the indoor heat exchanger and the first control valve, and is used to control the flow between the inlet of the indoor heat exchanger and the first control valve. The pipeline is turned on or off; the ninth control valve is connected in series with the first branch.

The fluorine pump module is connected in parallel with the ninth control valve through a fifth branch; the fluorine pump module includes a fluorine pump and a liquid storage tank connected in series on the fifth branch.

The tenth control valve is connected in series with the fifth branch, and is used to control the fifth branch to be turned on or off.

The eleventh control valve is connected in series on the pipeline between the outlet of the indoor heat exchanger and the inlet of the first compressor, and is used to control the outlet of the indoor heat exchanger and the inlet of the first compressor The pipeline between them is turned on or cut off.

The twelfth control valve is connected in parallel with the first compressor and the eleventh control valve through a sixth branch, and is used to control whether the sixth branch is turned on or off.

Preferably, the evaporative cooling unit further includes a second throttling device, the second throttling device is connected in series on the pipeline between the first control valve and the ninth control valve, and the second throttling device The device is connected in parallel with the fluorine pump module.

Preferably, the evaporative cooling unit further includes: an air-air heat exchanger and a spray module, the spray module includes a water pump, a water pan and a spray device, and the water pump communicates with the spray device through a pipeline , the spraying device is located above the air-air heat exchanger, and the water pan is located below the air-air heat exchanger.

The air-air heat exchanger is used to exchange heat between the indoor circulating airflow and the outdoor circulating airflow.

Preferably, the air conditioning system with a fresh air module further includes a box body, the evaporative cooling unit, the heat exchanger, and the second control valve are all located in the box body, and the fresh air indoor unit is located in the box body. Outside the box.

The box body is provided with an indoor air return port, an indoor air supply port, an outdoor air inlet, an outdoor air exhaust port and an outdoor air vent, and the outdoor heat exchanger is used for cooling the air between the outdoor air inlet and the outdoor air exhaust port. For heat exchange, the indoor heat exchanger is used to exchange heat for the gas between the indoor air return port and the indoor air supply port.

Preferably, the indoor air return port and the indoor air supply port are located on the first side wall of the box body, the outdoor air inlet port is located on the second side wall of the box body, and the outdoor air exhaust port The outdoor ventilation opening is located on the top wall of the box, and the first side wall, the second side wall and the top wall are adjacent to each other.

In the second aspect, the utility model also provides a base station, including a computer room, communication equipment, and the above-mentioned air conditioning system with a fresh air module, the fresh air indoor unit of the air conditioning system with a fresh air module is located in the computer room .

Description of drawings

Fig. 1 is a schematic diagram of an air conditioning system with a fresh air module provided by some embodiments of the present invention;

Fig. 2 is a schematic structural diagram of an air conditioning system with a fresh air module provided by some embodiments of the present invention.

Reference signs: 100, evaporative cooling unit; 110, first compressor; 120, outdoor heat exchanger; 130 indoor heat exchanger; 140, first control valve; 150, second throttling device; 160, air-air Heat exchanger; 170, spray module; 200, fresh air module; 210, heat exchanger; 211, first heat exchange channel; 212, second heat exchange channel; 220, fresh air indoor unit; 221, shell; 222, fresh air Heat exchanger; 223, fan; 230, second control valve; 240, second compressor; 241, fifth control valve; 242, sixth control valve; 243, seventh control valve; 244, eighth control valve; 250. Fresh air outdoor unit; 251. Fresh air outdoor heat exchanger; 260. The third control valve; 270. The fourth control valve; 280. The first throttling device; 310. The ninth control valve; 320. The tenth control valve; 400, fluorine pump module; 410, fluorine pump; 420, liquid storage tank; 510, eleventh control valve; 520, twelfth control valve; 700, box body; 710, indoor air return port; 720, indoor air supply port; 730, outdoor air inlet; 740, outdoor air outlet; 750, outdoor air outlet.

Detailed ways

The embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings.

In describing the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" , "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating Or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

The terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

As mentioned above, the existing evaporative cooling units only have cooling function, but no heating function, and the waste heat of the evaporative cooling unit is usually dissipated into the environment, resulting in energy waste.

Based on this, the utility model provides an air conditioning system with a fresh air module, and the air conditioning system with a fresh air module includes an evaporative cooling unit and a fresh air module. The evaporative cooling unit includes a first compressor, an outdoor heat exchanger, an indoor heat exchanger and a first control valve. The outlet of the first compressor communicates with the inlet of the outdoor heat exchanger through pipelines, the outlet of the outdoor heat exchanger communicates with the inlet of the indoor heat exchanger through pipelines, and the outlet of the indoor heat exchanger communicates with the inlet of the first compressor through pipelines. The pipeline is connected; the first control valve is connected in series on the pipeline between the outlet of the outdoor heat exchanger and the inlet of the indoor heat exchanger, and the first control valve is used to control the outlet of the outdoor heat exchanger and the inlet of the indoor heat exchanger. The pipeline between the inlets is open or cut off. The fresh air module includes a heat exchanger, a fresh air indoor unit, a second control valve and a second compressor. The heat exchanger includes a first heat exchange channel and a second heat exchange channel, the refrigerant in the first heat exchange channel is used to exchange heat with the refrigerant in the second heat exchange channel; the first heat exchange channel passes through the first branch The circuit is connected in parallel with the first control valve; the second control valve is connected in series with the first branch circuit, which is used to control the conduction or cut-off of the first branch circuit; the fresh air indoor unit includes a casing, a fresh air heat exchanger and a fan, and a fresh air heat exchanger and a fan Located in the shell, the shell has a fresh air inlet, a fresh air exhaust port and a fresh air supply port; the inlet of the second heat exchange channel is connected to the outlet of the fresh air heat exchanger through a pipeline, and the inlet of the fresh air heat exchanger is connected to the second compressor. The outlet is connected through a pipeline, and the inlet of the second compressor is connected with the outlet of the second heat exchange channel through a pipeline. In winter, the first control valve can be closed and the second control valve can be opened. In this way, the refrigerant flow path in the pipeline of the evaporative cooling unit passes through the first heat exchange channel and exchanges heat with the refrigerant in the second heat exchange channel. It solves the waste heat waste problem of evaporative cooling unit and saves energy consumption.

An air conditioning system with a fresh air module provided according to the present utility model will be described in detail below with reference to the accompanying drawings.

An exemplary embodiment of the present invention provides an air conditioning system with a fresh air module. As shown in FIG. 1 , the air conditioning system with a fresh air module includes an evaporative cooling unit 100 and a fresh air module 200 . The evaporative cooling unit 100 includes a first compressor 110 , an outdoor heat exchanger 120 , an indoor heat exchanger 130 and a first control valve 140 . The outlet of the first compressor 110 communicates with the inlet of the outdoor heat exchanger 120 through pipelines, the outlet of the outdoor heat exchanger 120 communicates with the inlet of the indoor heat exchanger 130 through pipelines, and the outlet of the indoor heat exchanger 130 communicates with the first The inlet of the compressor 110 is communicated through pipelines, thus forming a completely closed system. The refrigerant circulates in a fluid state in this closed refrigeration system, and through phase change, it continuously absorbs heat from the indoor heat exchanger 130 and releases heat in the outdoor heat exchanger 120, thereby realizing the utilization of the indoor heat exchanger 130 for room cooling purposes.

In this embodiment, the first compressor 110 is used as the power source of the evaporative cooling unit 100, and is used to compress and drive the refrigerant in the pipeline of the evaporative cooling unit 100, and pressurize the low-pressure gaseous refrigerant in the pipeline into high-temperature and high-pressure gaseous refrigeration. agent. Exemplarily, the first compressor 110 includes, but is not limited to, a piston compressor, a screw compressor, a scroll compressor, a centrifugal compressor, and a rolling rotor compressor. The outdoor heat exchanger 120 is used for exchanging heat between the refrigerant and the outdoor air, and the high-temperature and high-pressure gaseous refrigerant is condensed into a high-pressure liquid refrigerant at the outdoor heat exchanger 120 . Exemplarily, when the refrigerant is a working fluid such as carbon dioxide, the outdoor heat exchanger 120 may be an air cooler; when the refrigerant is fluoride, the outdoor heat exchanger 120 may be a condenser. The outdoor heat exchanger 120 also includes ventilation means for circulating outdoor air. The indoor heat exchanger 130 is used for heat exchange between the refrigerant and the indoor air, and the high-pressure liquid refrigerant evaporates into a low-pressure gas refrigerant at the indoor heat exchanger 130 . Exemplarily, the indoor heat exchanger 130 may be an evaporator. The indoor heat exchanger 130 also includes ventilation means for circulating indoor air.

In this embodiment, specifically, the first compressor 110 compresses the low-pressure gaseous refrigerant in the pipeline of the evaporative cooling unit 100 into a high-temperature and high-pressure gaseous refrigerant, and the gaseous refrigerant flows to the outdoor heat exchanger 120 for exchange with outdoor air. At this time, the gaseous refrigerant releases heat and condenses into a liquid refrigerant. The liquid refrigerant flows to the indoor heat exchanger 130 and exchanges heat with the indoor air. At this time, the liquid refrigerant evaporates and absorbs heat to become a gaseous refrigerant to cool down the indoor air. Compression, complete the refrigeration cycle, and then achieve the purpose of cooling the room.

In this embodiment, the first control valve 140 is connected in series on the pipeline between the outlet of the outdoor heat exchanger 120 and the inlet of the indoor heat exchanger 130, and the first control valve 140 is used to control the connection between the outlet of the outdoor heat exchanger 120 and the indoor The pipeline between the inlets of the heat exchanger 130 is connected or cut off. When the evaporative cooling unit 100 is running for cooling, the first control valve 140 is opened so that the refrigerant can flow between the outlet of the outdoor heat exchanger 120 and the indoor heat exchanger. Flow in the pipeline between the inlets of 130.

When the air pressure in the computer room of the data center is lower than the air pressure value in the surrounding environment, the computer room is in a negative pressure environment, that is, the outside air pressure is higher than the air pressure in the computer room, and the untreated outside air will pass through the unsealed windows, The door cracks are sucked into the computer room, causing the dust cleanliness of the computer room to exceed the standard, which will affect the life of network equipment and easily cause failures. Therefore, the computer room of the data center needs to maintain a positive pressure to ensure the safe operation of the equipment in the computer room. Therefore, the data center is often equipped with a fresh air module 200. In cold winter regions, a heating module is often equipped to heat the air sent into the room. As a result, the energy consumption of the fresh air module 200 is relatively high.

In this embodiment, as shown in FIG. 1 , the fresh air module 200 includes a heat exchanger 210 , a fresh air indoor unit 220 , a second control valve 230 and a second compressor 240 . The heat exchanger 210 includes a first heat exchange channel 211 and a second heat exchange channel 212 , the refrigerant in the first heat exchange channel 211 is used for exchanging heat with the refrigerant in the second heat exchange channel 212 . The first heat exchange channel 211 is connected in parallel with the first control valve 140 through the first branch, and the second control valve 230 is connected in series with the first branch, and is used to control the first branch to be turned on or off. Exemplarily, the first control valve 140 and the second control valve 230 can be interlocked (one of the first control valve 140 and the second control valve 230 is open and the other is closed), when only the evaporative cooling unit 100 is running, Open the first control valve 140 and close the second control valve 230 to make the refrigerant of the evaporative cooling unit 100 flow in the pipeline between the outlet of the outdoor heat exchanger 120 and the inlet of the indoor heat exchanger 130 . When operating the evaporative cooling unit 100 and the fresh air module 200 at the same time, close the first control valve 140 and open the second control valve 230 to make the refrigerant of the evaporative cooling unit 100 flow in the first heat exchange channel 211, which is beneficial for different Use the scene to switch to open the fresh air mode or not to open the fresh air mode.

The fresh air indoor unit 220 includes a shell 221, a fresh air heat exchanger 222 and a fan 223. The fresh air heat exchanger 222 and the fan 223 are located in the shell 221. The shell 221 has a fresh air inlet, a fresh air exhaust port and a fresh air supply port. The inlet of the second heat exchange channel 212 is connected with the outlet of the fresh air heat exchanger 222 through a pipeline, the inlet of the fresh air heat exchanger 222 is connected with the outlet of the second compressor 240 through a pipeline, and the inlet of the second compressor 240 is connected with the outlet of the second compressor 240 through a pipeline. The outlets of the two heat exchange passages 212 are connected through pipelines. Wherein, the second compressor 240 is used as the power source of the fresh air module 200, and is used to compress and drive the refrigerant in the pipeline of the fresh air module 200, and pressurize the low-pressure gaseous refrigerant in the pipeline into a high-temperature and high-pressure gaseous refrigerant. Exemplarily, the second compressor 240 includes, but is not limited to, a piston compressor, a screw compressor, a scroll compressor, a centrifugal compressor, and a rolling rotor compressor. The heat exchanger 210 is used for exchanging heat between the evaporative cooling unit 100 and the fresh air module 200. Exemplarily, the heat exchanger 210 includes but not limited to a wind-fluorine heat exchanger, a jacket heat exchanger, and a double-tube-sheet heat exchanger, etc. , it is beneficial to recover the waste heat of the evaporative cooling unit 100 and reuse it for heating the fresh air module 200 . The fresh air heat exchanger 222 is used for exchanging heat between the refrigerant and the air entering the room. Exemplarily, the fresh air heat exchanger 222 may be a wind-fluorine heat exchanger, a jacket heat exchanger, or a double-tube-sheet heat exchanger. In cold regions in winter, the outdoor air temperature is relatively low, and the fresh air heat exchanger 222 can heat the air entering the room from the outside, which is beneficial to maintain indoor air pressure balance and ensure safe operation of electronic equipment. The fan 223 is used to forcefully send outdoor fresh air into the room.

In this embodiment, specifically, for example, in winter, the second compressor 240 compresses the refrigerant in the pipeline of the fresh air module 200 into a high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant flows to the fresh air heat exchanger 222 and The air entering the room from the outside performs heat exchange, and the gaseous refrigerant releases heat and condenses into a liquid refrigerant, and the fan 223 forces the outdoor air that has absorbed heat into the room, and the liquid refrigerant flows to the second heat exchange channel 212 and is connected with the first The refrigerant in the heat exchange channel 211 performs heat exchange. At this time, the liquid refrigerant absorbs heat and evaporates into a gaseous refrigerant, and the gaseous refrigerant is compressed by the second compressor 240 again to realize circulation. In this way, the refrigerant is recycled to complete the function of the fresh air module 200 to heat the air forced into the room from the outside, and to pass the waste heat generated by the evaporative cooling unit 100 during the cooling process through the first heat exchange channel 211 and the second heat exchange channel 211. The heat exchange in the channel 212 realizes recovery, and the recovered heat is used to heat the fresh air module 200, which is beneficial to the recovery and reuse of energy, and at the same time reduces the operating cost of the fresh air module 200 and saves energy consumption.

In some embodiments, as shown in FIG. 1 , the fresh air module 200 further includes: a fresh air outdoor unit 250, a third control valve 260, a fourth control valve 270, a fifth control valve 241, a sixth control valve 242, a seventh control valve valve 243 and an eighth control valve 244. The third control valve 260 is connected in series on the pipeline between the inlet of the second compressor 240 and the outlet of the second heat exchange passage 212, and is used to control the connection between the inlet of the second compressor 240 and the outlet of the second heat exchange passage 212. The pipeline is turned on or cut off. The fresh air outdoor unit 250 is connected in parallel with the heat exchanger 210 and the third control valve 260 through the second branch. The fourth control valve 270 is connected in series with the second branch, and is used to control the conduction or cutoff of the second branch. The fifth control valve 241 is connected in series on the pipeline between the outlet of the second compressor 240 and the inlet of the fresh air heat exchanger 222, and is used to control the pipeline between the outlet of the second compressor 240 and the inlet of the fresh air heat exchanger 222. The path is turned on or off. The sixth control valve 242 is connected in series on the pipeline between the inlet of the second compressor 240 and the outlet of the second heat exchange passage 212, and is used to control the connection between the inlet of the second compressor 240 and the outlet of the second heat exchange passage 212. The pipeline is turned on or cut off. The seventh control valve 243 is connected in parallel with the second compressor 240 and the fifth control valve 241 through the third branch, and is used to control the third branch to be turned on or off. The eighth control valve 244 is connected in parallel with the second compressor 240 and the sixth control valve 242 through the fourth branch, and is used to control the fourth branch to be turned on or off.

In this embodiment, the fresh air outdoor unit 250 includes a fresh air outdoor heat exchanger and a ventilation device, the fresh air outdoor heat exchanger 120 is used for exchanging heat between the refrigerant and outdoor air, and the ventilation device is used for making the air flow. In summer, the outdoor air temperature is higher than the indoor air temperature. In order to maintain the indoor air pressure balance, the fresh air module 200 needs to cool the outdoor air while forcing the outdoor air into the room. It can be understood that in summer, the fresh air heat exchanger 222 of the fresh air indoor unit 220 may be an evaporator, and the fresh air outdoor heat exchanger 251 of the fresh air outdoor unit 250 may be a condenser.

In this embodiment, the third control valve 260 and the fourth control valve 270 can be interlocked (one of the third control valve 260 and the fourth control valve 270 is opened, and the other is closed), and the fifth control valve 241 and the sixth control valve The control valve 242 can be interlocked with the seventh control valve 243 and the eighth control valve 244 . When operating the fresh air module 200 in summer, close the second control valve 230, the third control valve 260, the fifth control valve 241 and the sixth control valve 242, open the fourth control valve 270, the seventh control valve 243 and the eighth control valve 244, cut off the first branch and the pipeline between the inlet of the second compressor 240 and the outlet of the second heat exchange channel 212, and conduct the second branch, the third branch and the fourth branch. Specifically, the second compressor 240 compresses the gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant flows to the fresh air outdoor heat exchanger 251 for heat exchange with outdoor air. At this time, the high-temperature and high-pressure gaseous refrigerant The refrigerant releases heat and condenses into a liquid refrigerant, and the liquid refrigerant flows to the fresh air heat exchanger 222 to exchange heat with the air sent into the room. At this time, the liquid refrigerant absorbs heat and evaporates into a gaseous refrigerant. The three branches return to the second compressor 240 again to be compressed into a high-temperature and high-pressure gaseous refrigerant, and then the high-temperature and high-pressure gaseous refrigerant flows to the fresh air outdoor heat exchanger 251 again through the fourth branch. In this way, the feeding is completed. The cooling cycle of the indoor air is conducive to maintaining the balance of the indoor air pressure and improving the safety of the indoor electronic equipment.

In some embodiments, as shown in FIG. 1 , the fresh air module 200 further includes a first throttling device 280 . Exemplarily, the first throttling device 280 includes but not limited to a capillary, a throttle valve, and a throttle orifice. The first throttling device 280 is connected in series on the pipeline between the inlet of the second heat exchange channel 212 and the outlet of the fresh air heat exchanger 222 . The first throttling device 280 can adapt to the change of the heat load of the fresh air heat exchanger 222 to adjust the flow rate of the refrigerant in the pipeline of the fresh air module 200, which is conducive to improving the utilization rate of the fresh air heat exchanger 222 and can ensure the safety and reliability of the fresh air module 200. To improve the operating efficiency of the fresh air module 200, which is conducive to saving energy and reducing operating costs.

In some embodiments, as shown in FIG. 1 , the air conditioning system with fresh air module further includes a ninth control valve 310 , a tenth control valve 320 , an eleventh control valve 510 and a twelfth control valve 520 . The ninth control valve 310 is connected in series on the pipeline between the inlet of the indoor heat exchanger 130 and the first control valve 140 , and is used to control the conduction of the pipeline between the inlet of the indoor heat exchanger 130 and the first control valve 140 or cut off, the ninth control valve 310 is connected in series with the first branch. The fluorine pump module 400 is connected in parallel with the ninth control valve 310 through the fifth branch, and the fluorine pump module 400 includes a fluorine pump 410 and a liquid storage tank 420 connected in series on the fifth branch. The fluorine pump 410 is used to provide power for the circulation of the refrigerant in the system. By acting on the refrigerant liquid to replace the operation demand of the compressor, the work of the compressor is reduced, thereby reducing energy consumption and realizing natural cooling. The liquid storage tank 420 is used to store excess refrigerant to adjust the flow and pressure of the system. When the system cycle needs to increase the supply of refrigerant, the liquid storage tank 420 can ensure the supply; when the system cycle needs to reduce the supply of refrigerant When the system is stopped, the liquid storage tank 420 can store the refrigerant to avoid waste; when the system stops working, the liquid storage tank 420 can store all the refrigerant in the system to avoid losses caused by system leakage. The tenth control valve 320 is connected in series with the fifth branch, and is used to control the conduction or cutoff of the fifth branch. The eleventh control valve 510 is connected in series on the pipeline between the outlet of the indoor heat exchanger 130 and the inlet of the first compressor 110, and is used to control the flow between the outlet of the indoor heat exchanger 130 and the inlet of the first compressor 110. The pipeline is turned on or cut off. The twelfth control valve 520 is connected in parallel with the first compressor 110 and the eleventh control valve 510 through the sixth branch, and is used to control whether the sixth branch is turned on or off.

Exemplarily, the ninth control valve 310 and the tenth control valve 320 may be interlocked, and the eleventh control valve 510 and the twelfth control valve 520 may be interlocked. By controlling the opening or closing of the valve, the air-conditioning system with the fresh air module of the present invention can operate in four modes, which are summer non-fresh air mode, summer fresh air mode, winter non-fresh air mode and winter fresh air mode.

For example, when the summer non-fresh air mode is running, the first control valve 140, the ninth control valve 310 and the eleventh control valve 510 are opened, and the second control valve 230, the third control valve 260, the fourth control valve 270, The tenth control valve 320 and the twelfth control valve 520, at this time only the evaporative cooling unit 100 is running, and the refrigerant in the pipeline of the evaporative cooling unit 100 is compressed by the first compressor 110 into a high-temperature and high-pressure gaseous refrigerant and then flows through the pipeline To the outdoor heat exchanger 120 and exchange heat with the outdoor air. The gaseous refrigerant releases heat and condenses into a liquid refrigerant that flows through the pipeline to the indoor heat exchanger 130 and exchanges heat with the indoor air. At this time, the liquid refrigerant absorbs the indoor electronic equipment The dissipated heat evaporates into gaseous refrigerant, which is compressed again by the first compressor 110 to realize cycle refrigeration and cool down the room. There is little increase in resistance in the road.

For example, when the summer fresh air mode is running, the first control valve 140, the fourth control valve 270, the seventh control valve 243, the eighth control valve 244, the ninth control valve 310 and the eleventh control valve 510 are opened, and the first control valve 510 is closed. The second control valve 230 , the third control valve 260 , the fifth control valve 241 , the sixth control valve 242 , the tenth control valve 320 and the twelfth control valve 520 , at this time the evaporative cooling unit 100 and the fresh air module 200 operate separately. The refrigerant in the pipeline of the evaporative cooling unit 100 is compressed by the first compressor 110 into a high-temperature and high-pressure gaseous refrigerant, and then flows through the pipeline to the outdoor heat exchanger 120 and exchanges heat with the outdoor air. The gaseous refrigerant releases heat and condenses into a liquid state The refrigerant flows to the indoor heat exchanger 130 through the pipeline and exchanges heat with the indoor air. At this time, the liquid refrigerant absorbs the heat emitted by the indoor electronic equipment and evaporates into a gaseous refrigerant, which is then compressed by the first compressor 110 to realize Cycle refrigeration to cool down the room. The gaseous refrigerant in the pipeline of the fresh air module 200 is compressed by the second compressor 240 into a high-temperature and high-pressure refrigerant, flows to the fresh air outdoor heat exchanger 120 and exchanges heat with the outdoor air, and the gaseous refrigerant releases heat and condenses into a liquid refrigerant The liquid refrigerant flows to the fresh air heat exchanger 222 and exchanges heat with the air entering the room. The liquid refrigerant absorbs heat and evaporates into a gaseous refrigerant, and then flows to the second compressor 240 through the third branch, and is again compressed by the second compressor 240. After being compressed, the second compressor 240 flows to the fresh air outdoor heat exchanger 251 through the fourth branch to continue heat exchange with the outdoor air, completes the refrigeration cycle of the fresh air module 200, cools the air entering the room, and maintains the balance of indoor air pressure, which is beneficial Protect the safe operation of electronic equipment in the room. By adjusting the frequency of the first compressor 110 and the second compressor 240, the heat load requirements of the evaporative cooling unit 100 and the fresh air module 200 are respectively met, so as to realize safe and stable operation of the evaporative cooling unit 100 and the fresh air module 200 at the same time.

For example, when operating in the non-fresh air mode in winter, open the first control valve 140, the tenth control valve 320 and the twelfth control valve 520, close the second control valve 230, the third control valve 260, the fourth control valve 270, The ninth control valve 310 , the eleventh control valve 510 , and the fluorine pump 410 act as a power source to perform work on the refrigerant, so that the refrigerant flows in the pipeline of the evaporative cooling unit 100 and the fluorine pump module 400 . The liquid refrigerant flows to the indoor heat exchanger 130 through the fifth branch and exchanges heat with the indoor air. At this time, the liquid refrigerant absorbs the heat emitted by the indoor electronic equipment and evaporates into a gaseous refrigerant, and the gaseous refrigerant flows through the sixth branch to The outdoor heat exchanger 120 exchanges heat with the outdoor air. At this time, the outdoor air temperature is relatively low, and the gaseous refrigerant releases heat to condense into a liquid refrigerant. The liquid refrigerant returns to the fluorine pump 410 through the first control valve 140 and the fifth branch. , complete cycle refrigeration. The circulating cooling in this embodiment can make full use of the natural cooling source at low temperature outdoors to achieve natural cooling, and the power consumption is relatively small compared with that of the compressor, which is beneficial to saving energy consumption.

Exemplarily, when running the winter fresh air mode, open the second control valve 230, the third control valve 260, the fifth control valve 241, the sixth control valve 242, the tenth control valve 320 and the twelfth control valve 520, and close the One control valve 140, the fourth control valve 270, the seventh control valve 243, the eighth control valve 244, the ninth control valve 310 and the eleventh control valve 510, the fluorine pump 410 works on the refrigerant to keep the refrigerant in the pipeline The refrigerant flows through the fifth branch to the indoor heat exchanger 130 and exchanges heat with the indoor air. At this time, the refrigerant absorbs the heat emitted by the indoor electronic equipment and evaporates into a gaseous refrigerant, and the gaseous refrigerant passes through the fourth branch. Flow to the outdoor heat exchanger 120 and exchange heat with the outdoor air. At this time, the temperature of the outdoor air is relatively low, and the gaseous refrigerant releases heat to condense into liquid refrigerant. The liquid refrigerant passes through the first heat exchange channel 211 and the second heat exchange channel 211. The gaseous refrigerant in the hot channel 212 performs heat exchange again, and returns to the fluorine pump 410 through the fifth branch after the heat exchange to realize cycle refrigeration. It can be understood that in winter, in order to heat the air entering the room, the fresh air heat exchanger 222 in the fresh air indoor unit 220 can be a condenser, and the fresh air outdoor heat exchanger 251 in the fresh air outdoor unit 250 can be an evaporator. The gaseous refrigerant in the pipeline of the fresh air module 200 flows to the second compressor 240 to be compressed into a high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant flows to the fresh air heat exchanger 222 and exchanges heat with the air entering the room. At this time, the high-temperature and high-pressure gaseous refrigerant releases heat and condenses into liquid refrigerant, the air entering the room is heated, and the liquid refrigerant flows to the second heat exchange channel 212 and exchanges heat with the refrigerant in the first heat exchange channel 211 , The liquid refrigerant in the second heat exchange channel 212 absorbs heat and evaporates into a gaseous refrigerant, which is then compressed by the second compressor 240 again, realizing the heating cycle of the fresh air module 200, heating the air entering the room, and maintaining the balance of indoor air pressure. It is conducive to the safe operation of indoor electronic equipment. The circulating cooling of the evaporative cooling unit 100 in this embodiment can make full use of the natural cooling source at low temperature outdoors to achieve natural cooling, and the power consumption is relatively smaller than that of the compressor, which is conducive to energy saving and environmental protection.

In some embodiments, as shown in FIG. 1, the evaporative cooling unit 100 further includes a second throttling device 150. Exemplarily, the second throttling device 150 includes, but is not limited to, a capillary tube, a throttle valve, and a throttling orifice, etc. . The second throttling device 150 is connected in series on the pipeline between the first control valve 140 and the ninth control valve 310 , and the second throttling device 150 is connected in parallel with the fluorine pump module 400 . The second throttling device 150 can adapt to the heat load change of the indoor heat exchanger 130 so as to adjust the flow rate of the refrigerant in the pipeline of the evaporative cooling unit 100, which is conducive to improving the utilization rate of the indoor heat exchanger 130 and can ensure that the evaporative cooling unit 100 Safe and reliable operation improves the operating efficiency of the evaporative cooling unit 100, which is conducive to saving energy and reducing operating costs.

In some embodiments, as shown in FIG. 1, the evaporative cooling unit 100 further includes: an air-to-air heat exchanger 160 and a spray module 170, the spray module 170 includes a water pump, a water pan and a spray device, and the water pump and spray The devices are connected through pipelines, the spray device is located above the air-air heat exchanger, the water pan is located below the air-air heat exchanger, and the air-air heat exchanger 160 is used to make the indoor circulating air flow and the outdoor circulating air flow Perform heat exchange to achieve cooling of the indoor circulating airflow. The spraying device directly sprays the cooling water on the air-air heat exchanger 160, part of the water absorbs the heat of the air in the heat exchanger and evaporates, and part of the water falls into the water pan and is recycled under the action of the water pump. The common cooling of water and air is beneficial to improve heat exchange efficiency.

In some embodiments, as shown in FIG. 2 , the air conditioning system with a fresh air module further includes a box body 700, the evaporative cooling unit 100, the heat exchanger 210, and the second control valve 230 are all located in the box body 700, and the fresh air indoor unit 220 is located outside the box body 700 . The box body 700 is provided with an indoor air return port 710, an indoor air supply port 720, an outdoor air inlet 730, an outdoor air exhaust port 740 and an outdoor air vent 750, and the outdoor heat exchanger 120 is used for the outdoor air inlet 730 and the outdoor air exhaust port 740 The indoor heat exchanger 130 is used for exchanging heat between the indoor air return port 710 and the indoor air supply port 720 . The fresh air indoor unit 220 is located outside the box body 700, which is convenient to carry and is beneficial to be applied to various places of use. Exemplarily, the fresh air indoor unit 220 may be placed on the roof of the room or set with a partition wall from the box body 700 .

In some embodiments, as shown in FIG. 2, the indoor air return port 710 and the indoor air supply port 720 are located on the first side wall of the box body 700, the outdoor air inlet port 730 is located on the second side wall of the box body 700, and the outdoor air exhaust port The air outlet 740 and the outdoor air outlet 750 are located on the top wall of the box body 700. The first side wall, the second side wall and the top wall are adjacent to each other. Leaving the box body 700 and circulating, outdoor air enters the box body 700 from the outdoor air inlet 730 and leaves the box body 700 through the outdoor air outlet 740 to circulate. The outdoor vents are used to exchange heat between the refrigerant in the fresh air outdoor heat exchanger and the outdoor air. The indoor air return port 710 and the indoor air supply port 720 are located on the same side wall of the box body 700, and the outdoor air exhaust port 740 and the outdoor air vent 750 are located on the same side wall of the box body 700, which is conducive to the installation of the box body 700 and the evaporative cooling inside the box body 700 The layout of the unit 100, the fluorine pump module 400 and some fresh air modules 200 saves installation space.

Some embodiments of the present invention also provide a base station, including a computer room, communication equipment, and the above-mentioned air conditioning system with a fresh air module. The fresh air indoor unit of the air conditioning system with a fresh air module is located in the computer room. Exemplarily, the base station can be a data center, a server group, etc. Exemplarily, the fresh air indoor unit of the air conditioning system with the fresh air module can be located on the roof of the machine room or the inner wall area of the machine room close to the box, and the fresh air indoor unit with the fresh air module The box of the air conditioning system can be located in the outer wall area of the machine room that needs to be cooled all year round. The air conditioning system with the fresh air module is conducive to cooling the room, and can maintain the indoor pressure balance, which is conducive to protecting the safe operation of the communication equipment in the computer room.

In the description of this specification, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in an appropriate manner.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (9)

1. An air-conditioning system with a fresh air module, characterized in that, the air-conditioning system with a fresh air module comprises: The evaporative cooling unit includes a first compressor, an outdoor heat exchanger, an indoor heat exchanger, and a first control valve; the outlet of the first compressor communicates with the inlet of the outdoor heat exchanger through pipelines, and the outdoor The outlet of the heat exchanger is connected with the inlet of the indoor heat exchanger through a pipeline, and the outlet of the indoor heat exchanger is connected with the inlet of the first compressor through a pipeline; the first control valve is connected in series with the On the pipeline between the outlet of the outdoor heat exchanger and the inlet of the indoor heat exchanger, the first control valve is used to control the connection between the outlet of the outdoor heat exchanger and the inlet of the indoor heat exchanger The pipeline is turned on or cut off; The fresh air module includes a heat exchanger, a fresh air indoor unit, a second control valve, and a second compressor; the heat exchanger includes a first heat exchange channel and a second heat exchange channel; the refrigeration in the first heat exchange channel The refrigerant is used to exchange heat with the refrigerant in the second heat exchange channel; the first heat exchange channel is connected in parallel with the first control valve through a first branch; the second control valve is connected in series with the On the first branch, it is used to control the conduction or cut-off of the first branch; the fresh air indoor unit includes a casing, a fresh air heat exchanger and a fan, the fresh air heat exchanger and the fan are located in the casing, the The casing has a fresh air inlet, a fresh air exhaust port and a fresh air supply port; the inlet of the second heat exchange channel is connected with the outlet of the fresh air heat exchanger through a pipeline, and the inlet of the fresh air heat exchanger is connected with the first The outlets of the two compressors are connected through pipelines, and the inlet of the second compressor is connected with the outlet of the second heat exchange channel through pipelines. 2. The air conditioning system with a fresh air module according to claim 1, wherein the fresh air module further comprises: a fresh air outdoor unit, a third control valve, a fourth control valve, a fifth control valve, and a sixth control valve. valve, the seventh control valve and the eighth control valve; The third control valve is connected in series on the pipeline between the inlet of the second compressor and the outlet of the second heat exchange channel, and is used to control the inlet of the second compressor and the second heat exchange channel. The pipeline between the outlets of the channel is connected or cut off; The fresh air outdoor unit is connected in parallel with the heat exchanger and the third control valve through a second branch; The fourth control valve is connected in series with the second branch, and is used to control the conduction or cutoff of the second branch; The fifth control valve is connected in series on the pipeline between the outlet of the second compressor and the inlet of the fresh air heat exchanger, and is used to control the connection between the outlet of the second compressor and the inlet of the fresh air heat exchanger. The pipeline between the inlets is connected or cut off; The sixth control valve is connected in series on the pipeline between the inlet of the second compressor and the outlet of the second heat exchange channel, and is used to control the inlet of the second compressor and the second heat exchange channel. The pipeline between the outlets of the channel is connected or cut off; The seventh control valve is connected in parallel with the second compressor and the fifth control valve through a third branch, and is used to control whether the third branch is turned on or off; The eighth control valve is connected in parallel with the second compressor and the sixth control valve through a fourth branch, and is used to control the fourth branch to be turned on or off. 3. The air conditioning system with a fresh air module according to claim 2, wherein the fresh air module further comprises: A first throttling device, the first throttling device is connected in series on the pipeline between the inlet of the second heat exchange channel and the outlet of the fresh air heat exchanger. 4. The air conditioning system with a fresh air module according to claim 1, wherein the air conditioning system with a fresh air module further comprises: A ninth control valve, the ninth control valve is connected in series on the pipeline between the inlet of the indoor heat exchanger and the first control valve, and is used to control the inlet of the indoor heat exchanger and the first control valve. The pipeline between the control valves is connected or cut off; the ninth control valve is connected in series with the first branch; A fluorine pump module, the fluorine pump module is connected in parallel with the ninth control valve through the fifth branch; the fluorine pump module includes a fluorine pump and a liquid storage tank connected in series on the fifth branch; A tenth control valve, the tenth control valve is connected in series with the fifth branch, and is used to control the fifth branch to be turned on or off; The eleventh control valve, the eleventh control valve is connected in series on the pipeline between the outlet of the indoor heat exchanger and the inlet of the first compressor, and is used to control the outlet of the indoor heat exchanger and the inlet of the first compressor. The pipeline between the inlets of the first compressor is connected or blocked; A twelfth control valve, the twelfth control valve is connected in parallel with the first compressor and the eleventh control valve through a sixth branch, and is used to control the conduction or cutoff of the sixth branch. 5. The air conditioning system with a fresh air module according to claim 4, wherein the evaporative cooling unit further comprises a second throttling device, the second throttling device is connected in series with the first control valve and On the pipeline between the ninth control valves, the second throttling device is connected in parallel with the fluorine pump module. 6. The air conditioning system with a fresh air module according to claim 1, wherein the evaporative cooling unit further comprises: an air-to-air heat exchanger and a spray module, and the spray module includes a water pump and a water pan and a spraying device, the water pump communicates with the spraying device through a pipeline, the spraying device is located above the air-air heat exchanger, and the water pan is located at the top of the air-air heat exchanger below; The air-air heat exchanger is used to exchange heat between the indoor circulating airflow and the outdoor circulating airflow. 7. The air-conditioning system with a fresh air module according to claim 1, wherein the air-conditioning system with a fresh air module further comprises a box, the evaporative cooling unit, the heat exchanger, the first Both control valves are located in the box, and the fresh air indoor unit is located outside the box; The box body is provided with an indoor air return port, an indoor air supply port, an outdoor air inlet, an outdoor air exhaust port and an outdoor air vent, and the outdoor heat exchanger is used for cooling the air between the outdoor air inlet and the outdoor air exhaust port. For heat exchange, the indoor heat exchanger is used to exchange heat for the gas between the indoor air return port and the indoor air supply port. 8. The air conditioning system with a fresh air module according to claim 7, wherein the indoor air return port and the indoor air supply port are located on the first side wall of the box body, and the outdoor air inlet is located on On the second side wall of the box, the outdoor air outlet and the outdoor air vent are located on the top wall of the box, and the first side wall, the second side wall and the top The walls are adjacent to each other. 9. A base station, characterized in that it includes a computer room and communication equipment, and the air conditioning system with a fresh air module according to any one of claims 1-8, the fresh air indoor of the air conditioning system with a fresh air module The machine is located in the machine room.

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