CN220582545U - Water-cooled air conditioning system - Google Patents

Abstract

The application provides a water-cooled air conditioning system, relates to the technical field of air conditioners, and aims to solve the technical problem that an outdoor unit of the air conditioning system frequently generates high-temperature and high-pressure alarms. The water-cooled air conditioning system includes: the system comprises an outdoor water cooling system, an indoor air conditioner tail end system, a first heat exchanger and a second heat exchanger. Wherein, outdoor water cooling system includes: the water supply device is used for providing cooling water; the indoor air conditioning end system includes: a heat pipe air conditioner end and a compression air conditioner end, the heat pipe air conditioner end comprising: a first indoor unit having a heat pipe type heat exchanger; the compression type air conditioner terminal includes: a second indoor unit having a compressor; the first heat exchanger includes: a first water flow path, a first refrigerant flow path, an outdoor first inlet, an outdoor first outlet, an indoor first inlet, and an indoor first outlet; the second heat exchanger includes: the second water flow path, the second refrigerant flow path, the outdoor second inlet, the outdoor second outlet, the indoor second inlet and the indoor second outlet.

Description

Water-cooled air conditioning system

Technical Field

The application relates to the technical field of air conditioners, in particular to a water-cooled air conditioning system.

Background

At present, a unit air conditioner unit is adopted in a machine room, and an outdoor unit of the unit air conditioner unit dissipates heat in an air cooling mode and is placed on a top building roof or mounted on an outer wall elevation.

With the innovation and development of distributed computing architecture services such as artificial intelligence, cloud computing and big data, service equipment of a machine room is gradually increased, and then the heat dissipation capacity of the machine room is continuously increased, so that the number of outdoor units required for refrigerating the machine room is also continuously increased.

Because of the limitation of space resources, the outdoor unit is installed more tightly. Therefore, the outdoor unit has smaller heat dissipation space, and heat is accumulated by the heat island effect formed locally, so that the heat dissipation of the air conditioning system is affected. Especially in summer, the air conditioning system often can appear the off-premises station temperature and be high enough problem of heat dissipation when the operation, leads to the temperature and the pressure of the refrigerant in the off-premises station to be great, causes the off-premises station to send out high temperature high pressure warning frequently, influences the steady operation of computer lab.

Disclosure of Invention

The application provides a water-cooled air conditioning system for solve when air conditioning system's air condensing units put densely, local heat island appears in air conditioning outdoor unit place to lead to air conditioning outdoor unit condensing pressure to be higher than the warning setting value, appear air conditioning system and send out the technical problem of high temperature high pressure warning frequently.

The application provides a water-cooled air conditioning system includes: an outdoor water cooling system, an indoor air conditioning terminal system, a first heat exchanger and a second heat exchanger, the outdoor water cooling system comprising: the device comprises a water supply device, a water inlet pipeline and a water outlet pipeline, wherein the water supply device is used for supplying cooling water; one end of the water inlet pipeline and one end of the water outlet pipeline are respectively communicated with the water supply device; the indoor air conditioning end system includes: a heat pipe air conditioner end and a compression air conditioner end, the heat pipe air conditioner end comprising: a first indoor unit having a heat pipe type heat exchanger; the compression type air conditioner terminal includes: a second indoor unit having a compressor; the first heat exchanger includes: the first water flow path, the first refrigerant flow path, the outdoor first inlet, the outdoor first outlet, the indoor first inlet and the indoor first outlet are communicated with the other end of the water inlet pipeline, and the indoor first inlet and the indoor first outlet are communicated with the tail end of the heat pipe type air conditioner; one end of the first water flow path is communicated with the outdoor first inlet, and the other end of the first water flow path is communicated with the outdoor first outlet; one end of the first refrigerant flow path is communicated with the indoor first inlet, and the other end of the first refrigerant flow path is communicated with the indoor first outlet; the second heat exchanger includes: the outdoor second inlet is communicated with the outdoor first outlet, the outdoor second outlet is communicated with the other end of the water outlet pipeline, the indoor second inlet and the indoor second outlet are both communicated with the tail end of the compression air conditioner, one end of the second water flow path is communicated with the outdoor second inlet, and the other end of the second water flow path is communicated with the outdoor second outlet; one end of the second refrigerant flow path is communicated with the indoor second inlet, and the other end of the second refrigerant flow path is communicated with the indoor second outlet.

It can be understood that the supercooling cooling water flowing out of the water supply device flows into the first water flow path through the water inlet pipeline and the outdoor first inlet, the refrigerant carrying indoor heat in the tail end of the heat pipe type air conditioner enters the first refrigerant flow path from the indoor first inlet and exchanges heat with the cooling water in the first water flow path, so that the cooling capacity can be provided for the indoor space, at the moment, the temperature of the supercooling cooling water in the first water flow path is primarily increased, then the supercooling cooling water flows out of the first water flow path from the outdoor first outlet and flows into the second water flow path from the outdoor second inlet, the refrigerant carrying indoor heat in the tail end of the compression type air conditioner enters the second refrigerant flow path from the indoor second inlet and exchanges heat with the cooling water with the primarily increased temperature in the second water flow path, so that the cooling capacity can also be provided for the indoor space, at the moment, the temperature of the cooling water in the second water flow path is secondarily increased, then flows out of the second water flow path from the outdoor second outlet and flows back to the water supply device to be cooled through the water outlet pipeline, and the circulation loop is formed.

Compared with the air-cooled heat dissipation of the outdoor unit in the related art, the outdoor water cooling system can bring heat on the indoor side to the water supply device for heat dissipation, and heat accumulation near the first heat exchanger and the second heat exchanger is avoided, so that a heat island effect is formed. Thereby solving the technical problem of frequent high-temperature and high-pressure alarm of the outdoor unit of the air conditioning system. Thus, when the water-cooled air conditioning system provided by the application is adopted in the machine room, the running stability of the machine room can be ensured.

In addition, by arranging the heat pipe type air conditioner tail end and the compression type air conditioner tail end, when the temperature of cooling water provided by the water supply device is low, the heat pipe type air conditioner tail end can utilize an outdoor natural cold source (cooling water) to provide cold for a machine room, so that the power supply use efficiency (power usage effectiveness, PUE) of the machine room is reduced; when the temperature of the cooling water provided by the water supply device is higher, the tail end of the heat pipe type air conditioner can only provide a small amount of cooling capacity or can not provide cooling capacity, so that the cooling capacity can be provided for the machine room through the tail end of the compression type air conditioner, and the refrigeration requirement of the machine room can be met.

In one possible implementation, the first heat exchanger is provided with a bypass line, one end of which is communicated with the water inlet line, and the other end of which is communicated with the outdoor second inlet; the water-cooled air conditioning system further includes: and a stop valve provided on the bypass pipe.

In the application, the bypass pipeline can be connected or cut off by opening or closing the stop valve, when the water inlet temperature of the second heat exchanger (namely the condensation temperature of the tail end of the compression air conditioner) is low, the stop valve is closed, and the tail end of the heat pipe air conditioner and the tail end of the compression air conditioner are opened; when the water inlet temperature of the second heat exchanger is higher, the stop valve is opened, so that cooling water in the water supply device (the temperature of the cooling water can ensure that the condensation pressure of the tail end of the compression type air conditioner is higher than a low-pressure protection threshold value, and the tail end of the compression type air conditioner has no low-pressure automatic protection stop risk) directly flows into the second heat exchanger, the condition that the temperature of the cooling water flowing into the second heat exchanger from the first heat exchanger is too high is avoided, the condensation temperature of the tail end of the compression type air conditioner is too high, and the refrigerating effect of the tail end of the compression type air conditioner is weakened.

In one possible implementation, the water-cooled air conditioning system further includes: the first temperature sensor is arranged on a pipeline between the outdoor first outlet and the outdoor second inlet and is used for detecting the temperature of cooling water flowing out of the outdoor first outlet; the controller is electrically connected with the first temperature sensor and the stop valve and is configured to: when the temperature of the cooling water flowing out of the outdoor first outlet is less than or equal to a first threshold value, the stop valve is controlled to be closed; and when the temperature of the cooling water flowing out of the outdoor first outlet is greater than a first threshold value, controlling the stop valve to be opened.

The application detects the temperature of the cooling water that outdoor first export flows through setting up first temperature sensor, and configures the controller as: when the temperature of the cooling water flowing out of the outdoor first outlet is less than or equal to a first threshold value, the stop valve is controlled to be closed; when the temperature of the cooling water flowing out of the outdoor first outlet is higher than a first threshold value, the stop valve is controlled to be opened, so that the stop valve can be controlled to be opened or closed automatically, the stop valve can be opened and closed manually instead, labor is saved, and the intellectualization of opening and closing the stop valve is improved.

In one possible implementation, the outdoor water cooling system further includes: and the water pump is arranged on the water inlet pipeline and used for conveying cooling water in the water supply device to the first heat exchanger. Because the water pump has the characteristic of reliable water delivery, the reliability of cooling water delivery can be improved.

In one possible implementation, the outdoor water cooling system further includes: the first water supply loop and the first backwater loop are annular, the first water supply loop is communicated with the water inlet pipeline and is positioned between the water pump and the water supply device, and the first backwater loop is communicated with the water outlet pipeline and is positioned between the water supply device and the outdoor second outlet.

The first water supply loop is communicated with the water inlet pipeline between the water pump and the water supply device, and is equivalent to the fact that the first water supply loop provides two paths for cooling water in the water supply device to flow into the water pump, and when one path is in a problem, the cooling water can pass through the other path; according to the water supply device, the first water return loop is communicated with the water outlet pipeline between the water supply device and the outdoor second outlet, and accordingly, the first water return loop provides two paths for water flowing out of the second heat exchanger to flow back to the water supply device, when one path is out of order, the water flowing out of the second heat exchanger can pass through the other path, and therefore the reliability of cooling water flowing into the water pump in the water supply device and the water flowing out of the second heat exchanger flowing back to the water supply device can be improved.

In one possible implementation, the outdoor water cooling system further includes: the second water supply loop is communicated with the water inlet pipeline and is positioned between the water pump and the outdoor first inlet, and the second water return loop is communicated with the water outlet pipeline and is positioned between the first water return loop and the outdoor second outlet.

The second water supply loop is communicated with the water inlet pipeline between the water pump and the outdoor first inlet, and is equivalent to the fact that the second water supply loop provides two paths for cooling water conveyed by the water pump to flow into the first heat exchanger, and when one path is in a problem, the cooling water can pass through the other path; this application communicates the second return water loop again between first return water loop and outdoor second export, is equivalent to, and this second return water loop provides two passageways for the water inflow first return water loop that the second heat exchanger flows out, and when one of them passageway goes wrong, the water that the second heat exchanger flows out can pass through from another passageway, so, can improve the cooling water that the cooling water of water pump transport flows into the reliability that the cooling water that first heat exchanger and second heat exchanger flowed flows into first return water loop.

In one possible implementation, the outdoor water cooling system includes: and any water supply device is communicated with the first water supply loop and the first backwater loop.

This application is through setting up a plurality of water supply devices, and any this water supply device all with first water supply loop and first return water loop intercommunication, so, can increase the cooling water volume that water supply device provided to satisfy great refrigeration demand, and when any or some water supply device breaks down, remaining water supply device can continue to provide cooling water, so can improve outdoor water cooling system's operating stability.

In one possible implementation, the outdoor water cooling system includes: and a plurality of water pumps arranged in parallel between the first water supply loop and the second water supply loop.

This application sets up a plurality of water pumps in parallel between first water supply loop and second water supply loop, and when arbitrary or partial water pump breaks down, the surplus water pump can continue to carry the cooling water, so can improve outdoor water cooling system's operating stability, and parallelly connected a plurality of water pumps of setting, can adapt to the transportation of the great quantity of cooling water that water supply installation provided.

In one possible implementation, the water-cooled air conditioning system further includes: the second temperature sensor is used for detecting the temperature of the cooling water flowing out of the water supply device, and the controller is further electrically connected with the second temperature sensor, the tail end of the heat pipe type air conditioner and the tail end of the compression type air conditioner and is configured to: when the temperature of the cooling water flowing out of the water supply device is smaller than a first preset value, controlling the tail end of the heat pipe type air conditioner to start and the tail end of the compression type air conditioner to stop; when the temperature of the cooling water flowing out of the water supply device is higher than a second preset value, controlling the tail end of the heat pipe type air conditioner to stop and the tail end of the compression type air conditioner to start; when the temperature of the cooling water flowing out of the water supply device is larger than or equal to a first preset value and smaller than or equal to a second preset value, the tail end of the heat pipe type air conditioner and the tail end of the compression type air conditioner are controlled to be started.

When the controller obtains that the temperature of cooling water flowing out of the water supply device is smaller than a first preset value, the tail end of the heat pipe type air conditioner is controlled to be started, and the tail end of the compression type air conditioner is controlled to be stopped, so that it can be understood that the water inlet temperature of the first heat exchanger is relatively low, the tail end of the heat pipe type air conditioner can fully utilize an outdoor natural cold source (cooling water) to provide the required cold energy for a machine room, and the water-cooled air conditioning system can obtain lower cooling water temperature through the water supply device to prolong the working time of the tail end of the heat pipe type air conditioner and provide more cold energy for the machine room.

When the controller obtains that the temperature of the cooling water flowing out of the water supply device is greater than a second preset value, the tail end of the heat pipe type air conditioner is controlled to stop, and the tail end of the compression type air conditioner is controlled to start, and it is understood that the water inlet temperature of the first heat exchanger is relatively high at this moment, the cold energy can not be provided through the tail end operation of the heat pipe type air conditioner, and the tail end of the compression type air conditioner is required to be independently started at this moment to provide the needed cold energy for a machine room.

When the temperature of the cooling water flowing out of the water supply device is obtained by the controller to be larger than or equal to a first preset value and smaller than or equal to a second preset value, the tail end of the heat pipe type air conditioner and the tail end of the compression type air conditioner are controlled to be started, and it can be understood that the tail end of the heat pipe type air conditioner can operate in the temperature range to provide cold for a machine room, but the refrigerating requirement of the machine room cannot be met, in order to effectively reduce the PUE of the machine room, the power is assisted, the energy is saved, the carbon is reduced, the tail end of the heat pipe type air conditioner is required to be started, but the refrigerating requirement of the machine room cannot be met by only starting the tail end of the heat pipe type air conditioner, and the tail end of the heat pipe type air conditioner and the tail end of the compression type air conditioner are enabled to operate simultaneously to meet the refrigerating requirement of the machine room.

Therefore, the water-cooled air conditioning system is provided with two independent air conditioning end systems, and the heat pipe type air conditioning end and the compression type air conditioning end can be controlled to operate in a mutual linkage mode (namely, the heat pipe type air conditioning end operates independently, the compression type air conditioning end operates independently and operates in a compound mode) through the arrangement of the second temperature sensor and the arrangement controller so as to refrigerate a machine room, so that the water-cooled air conditioning system is suitable for the energy-saving transformation of the air conditioner of the machine room building, not only is the utilization of a natural cold source realized, but also the utilization and old transformation of the traditional air-cooled unit type air conditioning system are realized, the PUE of the machine room is effectively reduced, and the energy conservation and the carbon reduction are assisted.

In one possible implementation, the first heat exchanger and the second heat exchanger are both shell-and-tube heat exchangers. Because the shell-and-tube heat exchanger has the characteristic of high heat exchange speed, the heat exchange efficiency of the first heat exchanger and the second heat exchanger can be improved, and the refrigerating effect of the tail end of the heat pipe type air conditioner and the tail end of the compression type air conditioner during operation is further enhanced.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

Fig. 1 is a schematic structural diagram of a water-cooled air conditioning system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an outdoor water cooling system according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a first heat exchanger according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a second heat exchanger according to an embodiment of the present disclosure;

FIG. 5 is a second schematic diagram of an outdoor water cooling system according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a water pump according to an embodiment of the present disclosure;

FIG. 7 is a third schematic diagram of an outdoor water cooling system according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of an outdoor water cooling system according to an embodiment of the present disclosure;

fig. 9 is a second schematic structural diagram of a water-cooled air conditioning system according to an embodiment of the present disclosure.

Reference numerals: 1000-a water-cooled air conditioning system; 100-an outdoor water cooling system; 10-a water supply device; 20-a water inlet pipeline; 21-a first water supply loop; 22-a second water supply loop; 30-a water outlet pipeline; 31-a first return water loop; 32-a second backwater loop; 40-bypass line; 50-a stop valve; 60-a water pump; 200-a first heat exchanger; 201-an outdoor first inlet; 202-an outdoor first outlet; 203-a first inlet in the chamber; 204-a first outlet in the chamber; 300-a second heat exchanger; 301-an outdoor second inlet; 302-an outdoor second outlet; 303-a second inlet in the chamber; 304-a second outlet in the chamber; 400-indoor air conditioning end system; 410-a heat pipe type air conditioner end; 411-a first indoor unit; 420-compression air conditioner end; 421-second indoor unit.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "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 terms in this application will be understood by those of ordinary skill in the art in a specific context. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The embodiment of the application provides a water-cooled air conditioning system 1000, which is used for solving the technical problem that when the air conditioning outdoor units of the air conditioning system are densely arranged, local heat islands appear at the positions of the air conditioning outdoor units, so that the condensing pressure of the air conditioning outdoor units is higher than an alarm set value, and the air conditioning system frequently generates high-temperature and high-pressure alarms.

Fig. 1 shows one of schematic structural diagrams of a water-cooled air conditioning system 1000 according to an embodiment of the present application, as shown in fig. 1, the water-cooled air conditioning system 1000 may include: an outdoor water cooling system 100, a first heat exchanger 200, a second heat exchanger 300, and an indoor air conditioning end system 400.

Fig. 2 illustrates one of schematic structural diagrams of an outdoor water cooling system 100 according to an embodiment of the present application, as shown in fig. 2, the outdoor water cooling system 100 may include: the water supply device 10, the water inlet pipeline 20 and the water outlet pipeline 30, wherein one end of the water inlet pipeline 20 is communicated with the water supply device 10, and one end of the water outlet pipeline 30 is also communicated with the water supply device 10.

The water supply device 10 is used for supplying cooling water. The water supply device 10 may be a cooling tower, for example; the water supply device 10 may also be a cooler or the like, for example, and the embodiment of the present application is not limited thereto.

Further, as shown in fig. 1, the indoor air conditioning end system 400 may include: a heat pipe air conditioning end 410 and a compression air conditioning end 420, the heat pipe air conditioning end 410 may include: the first indoor unit 411 having a heat pipe type heat exchanger, the compression type air conditioner terminal 420 may include: a second indoor unit 421 having a compressor.

It is understood that the heat pipe is a heat transfer component with high heat conducting performance, and the arrangement mode of the heat pipe may be a top heat pipe, an inter-column heat pipe, etc., which is not limited in this application. The heat pipe heat exchanger is different from other heat exchangers in structure. Heat pipe heat exchangers have some significant characteristics: the heat pipe type heat exchanger has the advantages of high heat transfer efficiency, compact structure, small heat exchange fluid resistance loss, flexible shape change, strong environmental adaptability and the like, and in addition, the heat pipe type heat exchanger can fully utilize the cold energy provided by the outdoor water cooling system 100 because of heat exchange between the heat pipe type heat exchanger and the machine room, thereby reducing the energy consumption of an air conditioning system of the communication machine room and further reducing the overall PUE of the machine room.

Besides, the compressed air conditioner end 420 can retain the original air-cooled air conditioner indoor unit (with a built-in compressor, an evaporator, a control component and the like), and the original air-cooled air conditioner outdoor unit is replaced by the second heat exchanger 300, so that the matched transformation of the air conditioner of the communication machine room is facilitated.

In one possible implementation, the compression air conditioner tip 420 may be a room air conditioner (indoor unit). It can be understood that the precise air conditioner of the machine room is a special air conditioner designed for the machine room of modern electronic equipment, and the working precision and reliability of the precise air conditioner are much higher than those of the common air conditioner. Computer equipment and program controlled exchange products are placed in a communication machine room, and the computer equipment and program controlled exchange products consist of a large number of dense electronic elements. To improve the stability and reliability of the use of these devices, the temperature and humidity of the environment need to be strictly controlled within specific ranges. The communication machine room temperature and the relative humidity can be controlled to be plus or minus 1 ℃ by the machine room precise air conditioner, so that the service life and the reliability of the equipment are greatly improved. Therefore, the second indoor unit 421 of the present application can be a precise air-conditioning indoor unit of a machine room, so that the service life of equipment in the communication machine room and the operation stability of the communication machine room can be improved.

In another possible implementation, the compression air conditioner end 420 may also be an inter-column air conditioner (indoor unit). Because the inter-column air conditioner realizes nearby refrigeration through nearby installation of the rack-mounted air conditioner and equipment inside the cabinet, the refrigeration efficiency can be greatly improved, and the refrigeration energy consumption of a machine room can be saved.

Fig. 3 illustrates a schematic structural diagram of a first heat exchanger 200 provided in an embodiment of the present application, and as shown in fig. 3, the first heat exchanger 200 may include: a first water flow path, a first refrigerant flow path, an outdoor first inlet 201, an outdoor first outlet 202, an indoor first inlet 203, and an indoor first outlet 204, the outdoor first inlet 201 may communicate with the other end of the water intake pipe 20, and the indoor first inlet 203 and the indoor first outlet 204 may communicate with the heat pipe type air conditioning terminal 410; one end of the first water flow path is communicated with the outdoor first inlet 201, and the other end is communicated with the outdoor first outlet 202; one end of the first refrigerant flow path communicates with the indoor first inlet 203, and the other end communicates with the indoor first outlet 204.

Fig. 4 illustrates a schematic structural diagram of a second heat exchanger 300 according to an embodiment of the present application, and as shown in fig. 4, the second heat exchanger 300 may include: a second water flow path, a second refrigerant flow path, an outdoor second inlet 301, an outdoor second outlet 302, an indoor second inlet 303 and an indoor second outlet 304, as shown in fig. 3 and 4, the outdoor second inlet 301 may communicate with the outdoor first outlet 202, as shown in fig. 1 and 4, the outdoor second outlet 302 may communicate with the other end of the water outlet pipe 30, the indoor second inlet 303 and the indoor second outlet 304 may communicate with the compression air conditioner terminal 420, one end of the second water flow path communicates with the outdoor second inlet 301, and the other end communicates with the outdoor second outlet 302; one end of the second refrigerant flow path is communicated with the indoor second inlet 303, and the other end is communicated with the indoor second outlet 304.

Alternatively, the first heat exchanger 200 and the second heat exchanger 300 may each be of a divided wall type. The dividing wall type heat exchanger has the characteristic of simpler structure, so that the dividing wall type heat exchanger can be conveniently installed by a user.

For example, the first heat exchanger 200 and the second heat exchanger 300 may be shell-and-tube heat exchangers (also called tube heat exchangers or shell-and-tube heat exchangers), and for example, the first heat exchanger 200 and the second heat exchanger 300 may be shell-and-tube water-fluorine heat exchangers, and the heat exchange efficiency of the first heat exchanger 200 and the second heat exchanger 300 may be improved due to the high heat exchange speed of the tube heat exchangers.

By way of example, the first heat exchanger 200 and the second heat exchanger 300 may each also be of the plate type, such as a spiral plate type heat exchanger, a plate fin type heat exchanger, a plate and shell type heat exchanger, etc. Since the plate heat exchanger has the characteristic of small heat loss, the heat exchanging effect of the first heat exchanger 200 and the second heat exchanger 300 can be enhanced.

Alternatively, the first heat exchanger 200 and the second heat exchanger 300 may be heat accumulating heat exchangers; alternatively, the first heat exchanger 200 and the second heat exchanger 300 may each be of the type that is fluidly connected to an indirect heat exchanger; alternatively, the first heat exchanger 200 and the second heat exchanger 300 may be direct contact heat exchangers; alternatively, the first heat exchanger 200 and the second heat exchanger 300 may be of a duplex type, which is not limited in this application.

Thus, the water-cooled air conditioning system 1000 provided in the embodiment of the present application includes: an outdoor water cooling system 100, a first heat exchanger 200, a second heat exchanger 300, and an indoor air conditioning end system 400, the outdoor water cooling system 100 comprising: the water supply device 10, the water inlet pipeline 20 and the water outlet pipeline 30, wherein one end of the water inlet pipeline 20 and one end of the water outlet pipeline 30 are respectively communicated with the water supply device 10; the indoor air conditioning end system 400 includes: a heat pipe air conditioning terminal 410 and a compression air conditioning terminal 420, the heat pipe air conditioning terminal 410 comprising: the first indoor unit 411 having a heat pipe type heat exchanger, the compression type air conditioner terminal 420 includes: a second indoor unit 421 having a compressor; the first heat exchanger 200 includes: the first water flow path, the first refrigerant flow path, the outdoor first inlet 201, the outdoor first outlet 202, the indoor first inlet 203 and the indoor first outlet 204, wherein the outdoor first inlet 201 is communicated with the other end of the water inlet pipeline 20, and the indoor first inlet 203 and the indoor first outlet 204 are communicated with the heat pipe type air conditioner end 410; one end of the first water flow path is communicated with the outdoor first inlet 201, and the other end is communicated with the outdoor first outlet 202; one end of the first refrigerant flow path is communicated with the indoor first inlet 203, and the other end is communicated with the indoor first outlet 204; the second heat exchanger 300 includes: the second water flow path, the second refrigerant flow path, the outdoor second inlet 301, the outdoor second outlet 302, the indoor second inlet 303 and the indoor second outlet 304, the outdoor second inlet 301 is communicated with the outdoor first outlet 202, the outdoor second outlet 302 is communicated with the other end of the water outlet pipe path 30, the indoor second inlet 303 and the indoor second outlet 304 are communicated with the compression air conditioner tail end 420, one end of the second water flow path is communicated with the outdoor second inlet 301, and the other end is communicated with the outdoor second outlet 302; one end of the second refrigerant flow path is communicated with the indoor second inlet 303, and the other end is communicated with the indoor second outlet 304.

It will be appreciated that the supercooled cooling water flowing out of the water supply device 10 flows into the first water flow path through the water inlet pipe 20 and the outdoor first inlet 201, the refrigerant carrying indoor heat in the heat pipe type air conditioner end 410 enters the first refrigerant flow path from the indoor first inlet 203 and exchanges heat with the cooling water in the first water flow path, so that cooling capacity can be provided for the indoor space, at this time, the supercooled cooling water in the first water flow path initially rises in temperature, then flows out of the first water flow path from the outdoor first outlet 202, flows into the second water flow path from the outdoor second inlet 301, the refrigerant carrying indoor heat in the compression type air conditioner end 420 enters the second refrigerant flow path from the indoor second inlet 303 and exchanges heat with the cooling water initially rising in temperature in the second water flow path, so that cooling capacity can also be provided for the indoor space, at this time, the cooling water in the second water flow path again rises in temperature, then flows out of the second water flow path from the outdoor second outlet 302, flows back to the water supply device 10 for cooling, and forms a circulation loop.

Compared to the air-cooled heat dissipation of the outdoor unit in the related art, the outdoor water cooling system 100 of the present application can bring the heat of the indoor side to the water supply device 10 for heat dissipation, so as to avoid heat accumulation near the first heat exchanger 200 and near the second heat exchanger 300, thereby forming a heat island effect. Thereby solving the technical problem of frequent high-temperature and high-pressure alarm of the outdoor unit of the air conditioning system. Thus, when the water-cooled air conditioning system 1000 provided by the application is adopted in the machine room, the running stability of the machine room can be ensured.

In addition, by providing the heat pipe type air conditioning terminal 410 and the compression type air conditioning terminal 420, when the temperature of the cooling water provided by the water supply device 10 is low, the heat pipe type air conditioning terminal 410 can provide cooling capacity for the machine room by utilizing an outdoor natural cooling source (cooling water), so that the PUE of the machine room can be reduced; when the temperature of the cooling water provided by the water supply device 10 is high, the heat pipe type air conditioner end 410 can only provide a small amount of cooling capacity or can not provide cooling capacity, so that the compression type air conditioner end 420 is also required to be arranged, thereby meeting the refrigeration requirement of the machine room.

Fig. 5 shows a second schematic structural view of an outdoor water cooling system 100 according to an embodiment of the present application, in some embodiments, as shown in fig. 5, the first heat exchanger 200 may be provided with a bypass line 40, one end of the bypass line 40 may be in communication with the water inlet line 20, and the other end of the bypass line 40 may be in communication with the outdoor second inlet 301, as shown in fig. 4 and 5; as shown in fig. 5, the water-cooled air conditioning system 1000 may further include: a shut-off valve 50, the shut-off valve 50 may be provided on the bypass line 40.

In this embodiment of the present application, the stop valve 50 may be opened or closed to switch on or off the bypass line 40, when the inlet water temperature of the second heat exchanger 300 (i.e. the condensation temperature of the compressed air conditioner end 420) is low, the stop valve 50 is closed, and the heat pipe air conditioner end 410 and the compressed air conditioner end 420 are opened, because the outdoor second inlet 301 of the second heat exchanger 300 is communicated with the outdoor first outlet 202, the inlet water temperature of the second heat exchanger 300 is already raised to a certain extent through the heat exchange effect of the first heat exchanger 200, so that the condensation temperature of the compressed air conditioner end 420 can be raised, and the low-pressure protection caused by the low condensation temperature of the compressed air conditioner end 420 is prevented; when the temperature of the inlet water of the second heat exchanger 300 is higher, the stop valve 50 is opened, so that the cooling water in the water supply device 10 (the cooling water temperature can ensure that the condensation pressure of the tail end 420 of the compression air conditioner is higher than the low-pressure protection threshold value, and the tail end 420 of the compression air conditioner has no risk of low-pressure automatic protection shutdown) directly flows into the second heat exchanger 300, so that the condition that the temperature of the cooling water flowing into the second heat exchanger 300 from the first heat exchanger 200 is too high, the condensation temperature of the tail end 420 of the compression air conditioner is too high, and the refrigerating effect of the tail end 420 of the compression air conditioner is weakened, and therefore, the condensation temperature of the tail end 420 of the compression air conditioner can be ensured to be in a preset range, so that the tail end 420 of the compression air conditioner has higher energy efficiency when running.

In some embodiments, the water-cooled air conditioning system 1000 may further include: a first temperature sensor, which may be provided on a pipe between the outdoor first outlet 202 and the outdoor second inlet 301, and which may be used to detect the temperature of the cooling water flowing out of the outdoor first outlet 202, and a controller; the controller may be electrically connected to both the first temperature sensor and the shut-off valve 50 and configured to: when the temperature of the cooling water flowing out of the outdoor first outlet 202 is obtained to be less than or equal to the first threshold value, the shut-off valve 50 may be controlled to be closed; when it is obtained that the temperature of the cooling water flowing out of the outdoor first outlet 202 is greater than the first threshold value, the shut-off valve 50 may be controlled to be opened.

The embodiment of the application detects the temperature of the cooling water flowing out of the outdoor first outlet 202 by providing the first temperature sensor, and configures the controller to: when the temperature of the cooling water flowing out of the outdoor first outlet 202 is less than or equal to a first threshold value, the stop valve is controlled to be closed; when the temperature of the cooling water flowing out of the outdoor first outlet 202 is obtained to be greater than the first threshold value, the stop valve is controlled to be opened, so that the stop valve 50 can be controlled to be opened or closed automatically, the stop valve 50 can be opened and closed manually instead, the manpower is saved, and the intellectualization of opening and closing the stop valve 50 is improved.

Fig. 6 shows a schematic structural diagram of a water pump 60 according to an embodiment of the present application, and in some embodiments, as shown in fig. 6, the outdoor water cooling system 100 may further include: a water pump 60, the water pump 60 may be provided on the water inlet pipe 20 and may be used to deliver the cooling water in the water supply device 10 into the first heat exchanger 200.

The water pump 60 may be a mechanism for delivering or pressurizing a liquid, and the water pump 60 may be a positive displacement pump, such as a centrifugal pump, a mixed flow pump, an axial flow pump, a self priming pump, etc., which is not limited in this application. Since the water pump 60 has the characteristic of reliable water delivery, the reliability of cooling water delivery can be improved.

Fig. 7 illustrates a third schematic structural diagram of an outdoor water cooling system 100 according to an embodiment of the present application, and in some embodiments, as shown in fig. 7, the outdoor water cooling system 100 may further include: the first water supply loop 21 and the first water return loop 31 may be both annular, the first water supply loop 21 may be connected to the water intake pipe 20 and may be located between the water pump 60 and the water supply device 10, and the first water return loop 31 may be connected to the water outlet pipe 30 and located between the water supply device 10 and the outdoor second outlet 302.

In the embodiment of the present application, the first water supply loop 21 is connected to the water inlet pipe 20 between the water pump 60 and the water supply device 10, which is equivalent to that the first water supply loop 21 provides two paths for the cooling water in the water supply device 10 to flow into the water pump 60, and when one path has a problem, the cooling water can pass through the other path; in this embodiment, the first water return loop 31 is further connected to the water outlet pipeline 30 between the water supply device 10 and the outdoor second outlet 302, which is equivalent to that the first water return loop 31 provides two paths for the water flowing out of the second heat exchanger 300 to flow back to the water supply device 10, when one path is problematic, the water flowing out of the second heat exchanger 300 can pass through the other path, so that the reliability of the cooling water flowing into the water pump 60 in the water supply device 10 and the water flowing out of the second heat exchanger 300 flowing back to the water supply device 10 can be improved.

For example, when a blockage occurs at M of the first water return loop 31 in fig. 7, the cooling water may flow back into the water supply device 10 through N of the first water return loop 31. In this way, the reliability of the water supply and return of the water-cooled air conditioning system 1000 is improved.

Fig. 8 shows a fourth schematic structural diagram of an outdoor water cooling system 100 according to an embodiment of the present application, and in some embodiments, as shown in fig. 8, the outdoor water cooling system 100 may further include: a second water supply loop 22 and a second water return loop 32, the second water supply loop 22 may be in communication with the water inlet line 20 and may be located between the water pump 60 and the outdoor first inlet 201, and the second water return loop 32 may be in communication with the water outlet line 30 and may be located between the first water return loop 31 and the outdoor second outlet 302.

In the embodiment of the present application, the second water supply loop 22 is communicated with the water inlet pipeline 20 between the water pump 60 and the outdoor first inlet 201, which is equivalent to that the second water supply loop 22 provides two paths for the cooling water conveyed by the water pump 60 to flow into the first heat exchanger 200, and when one path has a problem, the cooling water can pass through the other path; in this embodiment, the second water return loop 32 is further communicated between the first water return loop 31 and the outdoor second outlet 302, which is equivalent to that the second water return loop 32 provides two paths for the water flowing out of the second heat exchanger 300 to flow into the first water return loop 31, when one path is problematic, the water flowing out of the second heat exchanger 300 can pass through the other path, so that the reliability of the cooling water conveyed by the water pump 60 flowing into the first heat exchanger 200 and the cooling water flowing out of the second heat exchanger 300 flowing into the first water return loop 31 can be improved.

That is, when a blockage occurs at X of the second water supply loop 22 in fig. 8, the cooling water may flow into the first heat exchanger 200 through Y of the second water supply loop 22. In this way, the reliability of the water supply and return of the water-cooled air conditioning system 1000 can be further improved.

In one possible implementation, as shown in fig. 6 and 7, two water inlet lines 20 may be provided between the first water supply loop 21 and the water pump 60, as shown in fig. 6 and 8, two water inlet lines 20 may be provided between the water pump 60 and the second water supply loop 22, and two water outlet lines 30 may be provided between the first water return loop 31 and the second water return loop 32, as shown in fig. 7 and 8.

Two water inlet pipelines 20 are arranged between the first water supply loop 21 and the water pump 60 and between the water pump 60 and the second water supply loop 22, and two water outlet pipelines 30 are arranged between the first water return loop 31 and the second water return loop 32, so that the device can adapt to the transportation of a large amount of cooling water, and when any water inlet pipeline 20 has a problem, the cooling water can pass through the other water inlet pipeline 20, and when any water outlet pipeline 30 has a problem, the cooling water can pass through the other water outlet pipeline 30, so that the normal transportation of the cooling water is ensured, and the reliability of the transportation of the cooling water by the water inlet pipeline 20 and the water outlet pipeline 30 is improved.

In some embodiments, the outdoor water cooling system 100 may include: the plurality of water supply devices 10, any one of the water supply devices 10 may be in communication with the first water supply loop 21 and the first return water loop 31.

According to the embodiment of the application, the plurality of water supply devices 10 are arranged, any one of the water supply devices 10 is communicated with the first water supply loop 21 and the first water return loop 31, so that the cooling water quantity provided by the water supply device 10 can be increased to meet larger refrigeration demands, and when any one or part of the water supply devices 10 fail, the rest water supply devices 10 can continuously provide cooling water, so that the running stability of the outdoor water cooling system 100 can be improved.

For example, as shown in fig. 7, the outdoor water cooling system 100 may include: three water supply devices 10, any one water supply device 10 may be in communication with the first water supply loop 21 and the first water return loop 31;

in some embodiments, the outdoor water cooling system 100 may further include: a plurality of water pumps 60, the plurality of water pumps 60 may be disposed in parallel between the first water supply loop 21 and the second water supply loop 22.

According to the embodiment of the application, the plurality of water pumps 60 are arranged in parallel between the first water supply loop 21 and the second water supply loop 22, when any one or part of the water pumps 60 fail, the residual water pumps 60 can continue to convey cooling water, so that the running stability of the outdoor water cooling system 100 can be improved, and the plurality of water pumps 60 are arranged in parallel, so that the device can adapt to the conveying of a large amount of cooling water provided by the water supply device 10.

For example, as shown in fig. 6, the outdoor water cooling system 100 may further include: three water pumps 60, the three water pumps 60 may be disposed in parallel between the first water supply loop 21 and the second water supply loop 22.

In some embodiments, the water-cooled air conditioning system 1000 may further include: a second temperature sensor for detecting the temperature of the cooling water flowing out of the water supply device 10, and the controller may be electrically connected to the second temperature sensor, the heat pipe type air conditioner terminal 410 and the compression type air conditioner terminal 420, and configured to: when the temperature of the cooling water flowing out of the water supply device 10 is less than the first preset value, the heat pipe type air conditioner end 410 can be controlled to start and the compression type air conditioner end 420 can be controlled to stop; when the temperature of the cooling water flowing out of the water supply device 10 is greater than the second preset value, the heat pipe type air conditioner end 410 can be controlled to stop and the compression type air conditioner end 420 can be controlled to start; when the temperature of the cooling water flowing out of the water supply device 10 is obtained to be greater than or equal to the first preset value and less than or equal to the second preset value, both the heat pipe type air conditioning terminal 410 and the compression type air conditioning terminal 420 may be controlled to be activated.

When the controller obtains that the temperature of the cooling water flowing out of the water supply device 10 is smaller than the first preset value, the heat pipe type air conditioner terminal 410 is controlled to start and the compression type air conditioner terminal 420 is controlled to stop, and it can be understood that at this time, the water inlet temperature of the first heat exchanger 200 is relatively low, the heat pipe type air conditioner terminal 410 can fully utilize an outdoor natural cold source (cooling water) to provide the required cold energy for the machine room, and the water-cooled air conditioner system 1000 can obtain a lower cooling water temperature through the water supply device 10 to prolong the working time of the heat pipe type air conditioner terminal 410 and provide more cold energy for the machine room.

When the controller obtains that the temperature of the cooling water flowing out of the water supply device 10 is greater than the second preset value, the heat pipe type air conditioner terminal 410 is controlled to stop, and the compression type air conditioner terminal 420 is controlled to start, it can be understood that the inlet water temperature of the first heat exchanger 200 is relatively high at this time, the heat pipe type air conditioner terminal 410 can not provide cold energy, and the compression type air conditioner terminal 420 needs to be independently started to provide the cold energy required by the machine room at this time.

When the controller obtains that the temperature of the cooling water flowing out of the water supply device 10 is greater than or equal to the first preset value and less than or equal to the second preset value, the heat pipe type air conditioner terminal 410 and the compression type air conditioner terminal 420 are controlled to be started, and it is understood that in the temperature range, the heat pipe type air conditioner terminal 410 can operate to provide cooling capacity for a machine room, but cannot meet the cooling requirement of the machine room, in order to effectively reduce the PUE of the machine room, the power is assisted, energy is saved, carbon is reduced, the heat pipe type air conditioner terminal 410 needs to be started, but only the heat pipe type air conditioner terminal 410 needs to be started to meet the cooling requirement of the machine room, and the compression type air conditioner terminal 420 needs to be started, so that the heat pipe type air conditioner terminal 410 and the compression type air conditioner terminal 420 can operate simultaneously to meet the cooling requirement of the machine room.

In this way, the water-cooled air conditioning system 1000 is configured with two independent air conditioning end systems, and by setting the second temperature sensor and the configuration controller, the heat pipe type air conditioning end 410 and the compression type air conditioning end 420 can be controlled to operate in a linkage manner (that is, the heat pipe type air conditioning end 410 operates independently, the compression type air conditioning end 420 operates independently and in a compound mode) so as to refrigerate a machine room, so that the water-cooled air conditioning system is suitable for the energy-saving reconstruction of the air conditioner of the machine room building, not only realizing the utilization of natural cold sources, but also performing the old reconstruction of the existing air-cooled unit type air conditioning system, effectively reducing the PUE of the machine room, helping the energy conservation and carbon reduction.

In some embodiments, the water-cooled air conditioning system 1000 may include: a plurality of air conditioning parent systems, any one of which may include: the indoor air conditioning end system 400, the first heat exchanger 200, the second heat exchanger 300, the bypass line 40, the first temperature sensor, and the shut-off valve 50 described above.

The connection relationship of the air conditioning system may refer to the above description of the indoor air conditioning terminal system 400, the first heat exchanger 200, the second heat exchanger 300, the bypass line 40, the first temperature sensor and the stop valve 50, which is not repeated herein.

In addition, any of the air conditioning parent systems communicates with the second water supply loop 22 and the second return water loop 32.

Thus, the embodiment of the application sets up a plurality of above-mentioned air conditioner mother systems to, when this a plurality of air conditioner mother systems are operated, can make full use of the cooling water that water supply device 10 provided, and provide more cold volume for the computer lab, in order to satisfy the great refrigeration demand in the computer lab.

Fig. 9 shows a second schematic structural diagram of a water-cooled air conditioning system 1000 according to an embodiment of the present application, and as shown in fig. 9, the water-cooled air conditioning system 1000 may include: two of the above-described parent air conditioning systems, either of which may be in communication with the second water supply loop 22 and the second return water loop 32.

In some embodiments, the refrigerant in both the heat pipe air conditioning end 410 and the compression air conditioning end 420 may be freon.

Freon is a common refrigerant, and is a variety of common refrigerants, such as R22, R32, R134a, etc., and since the vapor-liquid two phases of freon are easily changed and a large amount of heat is absorbed or released during vaporization or liquefaction, the cooling effect of the heat pipe type air conditioner terminal 410 and the compression type air conditioner terminal 420 during operation can be enhanced.

In other embodiments, the refrigerant in the heat pipe air conditioner end 410 and the compression air conditioner end 420 can also be ammonia.

Ammonia, as a refrigerant, has a characteristic of large refrigerating capacity per unit system, so that the refrigerating capacity provided when the heat pipe type air conditioner terminal 410 and the compression type air conditioner terminal 420 are operated can be increased.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A water-cooled air conditioning system, comprising:

an outdoor water cooling system comprising: the water supply device is used for providing cooling water; one end of the water inlet pipeline and one end of the water outlet pipeline are respectively communicated with the water supply device;

an indoor air conditioning end system comprising: a heat pipe air conditioning terminal and a compression air conditioning terminal, the heat pipe air conditioning terminal comprising: a first indoor unit having a heat pipe type heat exchanger; the compression type air conditioner terminal includes: a second indoor unit having a compressor;

A first heat exchanger comprising: the outdoor first inlet is communicated with the other end of the water inlet pipeline; the indoor first inlet and the indoor first outlet are communicated with the tail end of the heat pipe type air conditioner; one end of the first water flow path is communicated with the outdoor first inlet, and the other end of the first water flow path is communicated with the outdoor first outlet; one end of the first refrigerant flow path is communicated with the indoor first inlet, and the other end of the first refrigerant flow path is communicated with the indoor first outlet;

a second heat exchanger comprising: the second water flow path, the second refrigerant flow path, the outdoor second inlet, the outdoor second outlet, the indoor second inlet and the indoor second outlet, the outdoor second inlet is communicated with the outdoor first outlet, and the outdoor second outlet is communicated with the other end of the water outlet pipeline; the indoor second inlet and the indoor second outlet are communicated with the tail end of the compression air conditioner; one end of the second water flow path is communicated with the outdoor second inlet, and the other end of the second water flow path is communicated with the outdoor second outlet; one end of the second refrigerant flow path is communicated with the indoor second inlet, and the other end of the second refrigerant flow path is communicated with the indoor second outlet.

2. The water-cooled air conditioning system according to claim 1 wherein the first heat exchanger is provided with a bypass line, one end of the bypass line being in communication with the water inlet line, the other end of the bypass line being in communication with the outdoor second inlet;

the water-cooled air conditioning system further includes: and the stop valve is arranged on the bypass pipeline.

3. The water-cooled air conditioning system according to claim 2, further comprising:

the first temperature sensor is arranged on a pipeline between the outdoor first outlet and the outdoor second inlet and is used for detecting the temperature of cooling water flowing out of the outdoor first outlet;

a controller electrically connected to both the first temperature sensor and the shut-off valve and configured to:

when the temperature of the cooling water flowing out of the outdoor first outlet is less than or equal to a first threshold value, the stop valve is controlled to be closed;

and when the temperature of the cooling water flowing out of the outdoor first outlet is obtained to be greater than the first threshold value, controlling the stop valve to be opened.

4. The water-cooled air conditioning system according to any one of claims 1 to 3 wherein the outdoor water cooling system further comprises:

The water pump is arranged on the water inlet pipeline and used for conveying cooling water in the water supply device to the first heat exchanger.

5. The water-cooled air conditioning system according to claim 4 wherein the outdoor water cooling system further comprises:

the water supply system comprises a water pump, a water supply device, a water return device, a water supply device, a water return loop, a water supply device and a water return loop, wherein the water supply device is connected with the water supply device through the water supply device, the water supply device is connected with the water return loop through the water supply device, and the water return loop is connected with the water supply device through the water supply device.

6. The water-cooled air conditioning system according to claim 5 wherein the outdoor water cooling system further comprises: the second water supply loop is communicated with the water inlet pipeline and is positioned between the water pump and the outdoor first inlet, and the second water return loop is communicated with the water outlet pipeline and is positioned between the first water return loop and the outdoor second outlet.

7. The water-cooled air conditioning system according to claim 5 wherein the outdoor water cooling system comprises: and the water supply devices are communicated with the first water supply loop and the first return water loop.

8. The water-cooled air conditioning system according to claim 6 wherein the outdoor water cooling system comprises: the water pumps are arranged in parallel between the first water supply loop and the second water supply loop.

9. The water-cooled air conditioning system according to claim 3, further comprising:

a second temperature sensor for detecting a temperature of the cooling water flowing out of the water supply device, the controller being further electrically connected to the second temperature sensor, the heat pipe air conditioner terminal and the compression air conditioner terminal, and configured to:

when the temperature of the cooling water flowing out of the water supply device is lower than a first preset value, controlling the tail end of the heat pipe type air conditioner to start and controlling the tail end of the compression type air conditioner to stop;

when the temperature of the cooling water flowing out of the water supply device is obtained to be larger than a second preset value, controlling the tail end of the heat pipe type air conditioner to stop and controlling the tail end of the compression type air conditioner to start;

and when the temperature of the cooling water flowing out of the water supply device is larger than or equal to the first preset value and smaller than or equal to the second preset value, controlling the tail end of the heat pipe type air conditioner and the tail end of the compression type air conditioner to be started.

10. The water cooled air conditioning system of claim 1 wherein the first heat exchanger and the second heat exchanger are both shell and tube heat exchangers.