CN220250191U

CN220250191U - Heat exchanger unit

Info

Publication number: CN220250191U
Application number: CN202321506988.XU
Authority: CN
Inventors: 李华
Original assignee: Beijing Wanguo Changan Technology Co ltd
Current assignee: Beijing Wanguo Changan Technology Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-12-26
Anticipated expiration: 2033-06-13

Abstract

The application provides a heat exchanger unit. Wherein, this unit includes: the device comprises a first frame, a second frame, a water cooling system, an air cooling system, a spraying system and a control device; the water cooling system, the air cooling system and the spraying system are all connected with the control device, and the control device is configured to control one or more of the water cooling system, the air cooling system and the spraying system to be started according to the outdoor temperature so as to exchange heat with indoor gas through one or more of the water cooling system, the air cooling system and the spraying system. According to the method and the device, the corresponding one or more heat exchange systems are controlled to be started according to the outdoor temperature, so that each heat exchange system is started only in the corresponding temperature range, invalid starting time of each heat exchange system can be reduced, and energy waste is reduced.

Description

Heat exchanger unit

Technical Field

The application relates to the field of heat exchange boxes, in particular to a heat exchange unit.

Background

Heat dissipation or heat regulation of a multi-heat source or a large-area indoor space including a data center through heat exchange can improve the temperature and comfort of the indoor space. However, as the heat sources in the indoor space increase, for example, the scale of the data center increases gradually, the heat exchange demand of the indoor space increases rapidly, and thus the energy consumption of the heat exchange unit increases.

When the heat exchange is carried out by the existing heat exchange unit, a heat exchange mode of gas and gas is mostly adopted. The mode can directly use the compressor to refrigerate the gas when the outdoor temperature is higher than the indoor temperature, so that the overall energy consumption is higher, the power consumption of the overall unit is higher, and the energy consumption is relatively higher.

Disclosure of Invention

Accordingly, an object of the embodiments of the present application is to provide a heat exchanger unit, which can reduce the power consumption of the heat exchanger unit and save energy.

In a first aspect, embodiments of the present application provide a heat exchanger unit, including: the device comprises a first frame, a second frame, a water cooling system, an air cooling system, a spraying system and a control device; the first frame comprises the spraying system, a part of the water cooling system and a part of the air cooling system; the second frame comprises a part of the water cooling system and a part of the air cooling system; a part of the water cooling system in the first frame is connected with a part of the water cooling system in the second frame through a first water pipe; a part of the air cooling system in the first frame is connected with a part of the air cooling system in the second frame through an air pipe; the water cooling system, the air cooling system and the spraying system are all connected with the control device, and the control device is configured to control one or more of the water cooling system, the air cooling system and the spraying system to be started according to outdoor temperature so as to exchange heat with indoor gas through one or more of the water cooling system, the air cooling system and the spraying system.

In the implementation process, the water cooling system, the air cooling system, the spraying system and other heat exchange systems are arranged, and the heat exchange systems are connected with the control device, so that the control device controls the corresponding one or more heat exchange systems to be opened according to the outdoor temperature, each heat exchange system is opened only in a corresponding temperature range, the invalid opening time of each heat exchange system can be reduced, and the energy waste is reduced. In addition, one or more of the water cooling system, the air cooling system and the spraying system are determined to be started through the outdoor temperature, so that the refrigeration switching of the heat exchange unit can be realized, the heat exchange is performed by utilizing a cold source to the greatest extent, the refrigeration of the device is reduced, and the energy is saved.

In one embodiment, the water cooling system comprises: the device comprises a first water-cooling surface cooler, a second water-cooling surface cooler, a circulating water pump and a first water pipe; the first water-cooling surface cooler and the second water-cooling surface cooler are connected through the first water pipe; the circulating water pump is connected with the first water pipe and is configured to provide circulating power for the water cooling system; the first water-cooling surface cooler is configured to exchange heat between gas on the surface of the first water-cooling surface cooler and liquid in the first water-cooling surface cooler, and transfer the liquid after heat exchange to the second water-cooling surface cooler through the first water pipe; the second water-cooling surface cooler is configured to exchange heat between liquid inside the second water-cooling surface cooler and gas on the surface of the second water-cooling surface cooler so as to exchange heat between the indoor gas.

In the implementation process, the water cooling system is connected with the two water cooling surface coolers through the first water pipe, and the exchange of liquid media between the two water cooling surface coolers is realized by starting the circulating water pump, so that the heat exchange of indoor gas and outdoor gas is completed. When the water cooling system exchanges heat, only the circulating water pump is required to be started, the power of the circulating water pump is lower than that of the compressor, and the indoor gas heat exchange through the water cooling system can reduce power consumption and save energy. In addition, through setting up water-cooling surface cooler and carrying out heat exchange, for traditional heat exchange core, produced dirt, incrustation scale etc. are less, and easily wash.

In one embodiment, the air cooling system includes: the device comprises a first air-cooled surface cooler, a second air-cooled surface cooler, a compressor, a throttling device and a gas pipe; the first air-cooled surface cooler and the second air-cooled surface cooler are connected through the air pipe; the throttling device is arranged between the first air-cooled surface cooler and the second air-cooled surface cooler; the compressor is connected with the gas pipe and is configured to compress media in the gas pipe; the first air-cooled surface cooler is configured to exchange heat between the gas on the surface of the first air-cooled surface cooler and the medium inside the first air-cooled surface cooler, and transfer the temperature of the medium after heat exchange to the second air-cooled surface cooler through the gas pipe; the second air-cooled surface cooler is configured to exchange heat between a medium inside the second air-cooled surface cooler and the gas on the surface of the second air-cooled surface cooler so as to exchange heat between the indoor gas.

In the implementation process, when the outdoor temperature of the air cooling system is higher and the heat exchange effect of the water cooling surface cooler is not obvious, the air cooling system is started, and then the medium in the air cooling surface cooler is forcedly cooled, and then the cooled medium in the air cooling surface cooler exchanges heat with indoor gas. Because the air cooling system can directly treat the medium to achieve better cooling treatment, the heat exchange unit can exchange heat under any condition, and the use scene of the heat exchange unit is increased.

In one embodiment, the spray system comprises: the spray pump, the second water pipe and the spray head; the second water pipe and an external water source are both connected with the spray pump, and the spray pump is configured to input the external water source to the second water pipe; the spray head is arranged on the second water pipe, and is configured to spray water to the water cooling system and the air cooling system in the first frame so as to further cool the liquid in the water cooling system and the medium in the air cooling system.

In the implementation process, the spraying system is used for spraying the external water source onto the water cooling system and/or the air cooling system, specifically, as the external water source sprays the surface of the water cooling surface cooler (such as the first water cooling surface cooler) of the water cooling system and the surface of the air cooling surface cooler (such as the first air cooling surface cooler) of the air cooling system, evaporation is carried out to absorb heat, so that the liquid in the water cooling system and the medium in the air cooling system are further cooled, and the heat exchange efficiency of the heat exchange unit can be improved.

In one embodiment, when the outdoor temperature is lower than a first temperature threshold value, the control device controls the water cooling system to be started, and the air cooling system and the spraying system to be closed so as to switch the heat exchange mode of the heat exchange unit to a first mode; in the first mode, an outdoor cold source enters the first frame through an air inlet on the first frame and exchanges heat with liquid in the water cooling system in the first frame; the liquid in the water cooling system in the first frame is transmitted to the water cooling system in the second frame through the first water pipe; and the indoor gas enters the second frame from an indoor air inlet of the second frame, exchanges heat with liquid of the water cooling system in the second frame, and enters the room through an indoor air supply inlet of the second frame.

In the implementation process, the outdoor temperature is low, and the part of the device for heat exchange and the outdoor gas are at low temperature in the environment, so that a good heat exchange effect can be achieved, a spraying system is not required to be started, the running time of the spraying system is shortened, and energy sources are saved. In addition, because the outdoor temperature is lower, the temperature of the liquid medium in the water cooling system is also lower, at the moment, the indoor temperature can be reduced to the required temperature only through the water cooling system, and the heat exchange is not needed to be carried out through the air cooling system, so that the opening time of the air cooling system is reduced, the energy consumption possibly generated by opening the air cooling system is reduced, and the energy is saved.

In one embodiment, when the outdoor temperature is higher than a first temperature threshold value and lower than a second temperature threshold value, the control device controls the water cooling system and the spraying system to be started, and the air cooling system is closed so as to switch the heat exchange mode of the heat exchange unit to a second mode; in the second mode, the spraying system sprays water to the water cooling system in the first frame so as to further cool the liquid in the water cooling system; the liquid in the water cooling system in the first frame is transmitted to the water cooling system in the second frame through the first water pipe; and the indoor air enters the second frame from the indoor air inlet of the second frame and enters the room through the indoor air supply inlet of the second frame after heat exchange is performed by the water cooling system in the second frame.

In the implementation process, the outdoor temperature is lower, so that the temperature of the liquid medium in the water cooling system is also lower, at the moment, the indoor temperature can be reduced to the required temperature only through the water cooling system and the spraying system, and the air cooling system is not required to exchange heat, so that the opening time of the air cooling system is reduced, the energy consumption possibly generated by opening the air cooling system is reduced, and the energy is saved.

In one embodiment, when the outdoor temperature is higher than the second temperature threshold and lower than the third temperature threshold, the control device controls the water cooling system, the spraying system and the air cooling system to be started so as to switch the heat exchange mode of the heat exchange unit to the third mode; in the third mode, the spraying system sprays water to the water cooling system and the air cooling system in the first frame so as to further cool the liquid in the water cooling system and the medium in the air cooling system; the liquid in the water cooling system in the first frame is transmitted to the water cooling system in the second frame through the first water pipe; the medium in the air cooling system in the first frame is transmitted to the air cooling system in the second frame through the air pipe; and the indoor air enters the second frame from an indoor air inlet of the second frame, exchanges heat through a water cooling system in the second frame and an air cooling system in the second frame, and then enters the room through an indoor air supply inlet of the second frame.

In the implementation process, when the outdoor temperature is relatively high, the air cooling system is started only when the water cooling system is insufficient to reduce the indoor temperature to the temperature to which the indoor gas needs to reach. On the basis of heat exchange of the water cooling system, the air cooling system supplements the heat exchange of the water cooling system, so that the time for starting the air cooling system can be reduced as much as possible while the aim of indoor gas heat exchange is fulfilled, and the efficiency of the compressor in operation is further reduced. While improving the heat exchange efficiency, the energy is saved.

In one embodiment, when the outdoor temperature is higher than a third temperature threshold value, the control device controls the spraying system and the air cooling system to be turned on, and the water cooling system to be turned off so as to switch the heat exchange mode of the heat exchange unit to a fourth mode; in the fourth mode, the spraying system sprays water to the air cooling system in the first frame so as to further cool the air cooling system; the medium in the air cooling system in the first frame is transmitted to the air cooling system in the second frame through the air pipe; and the indoor air enters the second frame from the indoor air inlet of the second frame and enters the room through the indoor air supply inlet of the second frame after heat exchange is carried out by the air cooling system in the second frame.

In the implementation process, when the temperature is higher, the temperature of the liquid medium in the water cooling system is also increased at the higher temperature, and if the water cooling system is started at the moment, the indoor temperature is increased instead, so that the refrigerating capacity of the air cooling system is increased. At this time, the heat exchange of the indoor gas is completed only through the air cooling system, so that the refrigerating capacity of the air cooling system can be reduced, and the energy is saved.

In one embodiment, wherein the gas within the first frame is an outdoor gas; the outdoor gas is configured to exchange heat between the liquid in the water cooling system and the medium in the air cooling system in the first frame; the gas in the second frame is indoor gas; the indoor gas is configured to exchange heat through the liquid in the water cooling system and the medium in the air cooling system in the second frame; wherein the gas in the first frame is isolated from the gas in the second frame.

In the implementation process, the influence of the outdoor gas temperature on the indoor gas temperature is prevented by isolating the gas in the first frame from the gas in the second frame, and when the heat exchange unit performs heat exchange, the heat exchanged gas only needs to comprise the indoor gas. Especially when the air cooling system is required to exchange heat, the refrigerating capacity of the air cooling system can be reduced, and the energy is saved.

In one embodiment, the first frame and the second frame are provided separately.

In the implementation process, the first frame and the second frame are separated, so that the first frame or the second frame for heat exchange with the outdoor cold source can be arranged outdoors, the indoor volume of the heat exchange unit is reduced, the requirements on the layer height of a building and the like are small, and the application scene of the heat exchange unit is increased.

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a heat exchange unit provided in an embodiment of the present application when a first frame and a second frame of the heat exchange unit are disposed at the same position;

fig. 2 is a schematic structural diagram of a heat exchanger unit when a first frame and a second frame of the heat exchanger unit provided in the embodiment of the present application are disposed at different positions.

Description of the drawings: 100-first frame, 200-second frame, 300-water cooling system, 310-first water cooling surface cooler, 320-second water cooling surface cooler, 330-circulating water pump, 340-first water pipe, 400-air cooling system, 410-first air cooling surface cooler, 420-second air cooling surface cooler, 430-compressor, 440-air pipe, 500-spraying system, 510-spraying pump, 520-second water pipe, 530-shower nozzle.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are directions or positional relationships based on those shown in the drawings, or directions or positional relationships that are conventionally visited when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limitations of the present application.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, or may be internal communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The inventor of the application discovers through long-term research that the current heat exchanger unit directly exchanges heat between the outdoor wet air after evaporative cooling and the indoor hot air, when the outdoor temperature is higher than the return air temperature of the machine room, the return air temperature of the machine room is increased, the refrigerating capacity of a compressor is increased, the whole power consumption of the unit is further increased, and unnecessary energy consumption is caused. Moreover, the existing heat exchanger unit is a large-scale integrated unit, has certain requirements on machine room construction site selection, and has very limited application scenes.

In view of this, the inventor of the present application proposes a heat exchange unit, by setting a water cooling system, an air cooling system, a spraying system, etc., to switch different heat exchange modes according to different outdoor temperatures, so that each heat exchange system is only opened in a corresponding temperature range, which can reduce the ineffective opening time of each heat exchange system and reduce energy waste. In addition, through setting up the frame that two separations set up, can divide into two with this unit, a part is placed indoor, and a part is placed outdoor to reduce this unit in indoor volume, reduce the requirement to indoor space volume, increased the application scenario of unit.

For ease of understanding the present embodiment, a detailed description of a heat exchanger unit for performing the disclosed embodiments of the present application will be first provided.

Referring to fig. 1, the heat exchanger unit includes: the air cooling system comprises a first frame 100, a second frame 200, a water cooling system 300, an air cooling system 400, a spraying system 500 and a control device.

Wherein, the first frame 100 includes a spray system 500, a part of the water cooling system 300, and a part of the air cooling system 400 therein; the second frame 200 includes therein a portion of the water cooling system 300 and a portion of the air cooling system 400.

Here, a portion of the water cooling system 300 in the first frame 100 is connected with a portion of the water cooling system 300 in the second frame 200 through the first water pipe 340; a portion of the air-cooling system 400 in the first frame 100 is connected to a portion of the air-cooling system 400 in the second frame 200 through an air duct 440.

The water cooling system 300, the air cooling system 400 and the spraying system 500 are all connected with a control device, and the control device is configured to control one or more of the water cooling system 300, the air cooling system 400 and the spraying system 500 to be turned on according to the outdoor temperature so as to exchange heat with indoor gas through one or more of the water cooling system 300, the air cooling system 400 and the spraying system 500.

The water cooling system 300 is a system that exchanges heat between an internal liquid and an external gas. The air cooling system 400 is a system that exchanges heat with the outside air through an internal medium. Spray system 500 refers to a system that further cools the liquid within water cooling system 300 and/or the medium within air cooling system 400 by spraying a water mist onto the surface of water cooling system 300 and/or air cooling system 400. The medium in the air cooling system 400 includes a gaseous state, a liquid state, and a mixed state of gas and liquid, which continuously circulates in the refrigeration system, and the refrigeration is realized through the mutual change of the gaseous state and the liquid state.

Alternatively, the first frame 100 and the second frame 200 may be separately disposed or integrally disposed, and the manner of disposing the first frame 100 and the second frame 200 may be adjusted according to the actual situation, which is not particularly limited in this application.

The control device can be a computer, a singlechip, a programmable controller and the like. The control device is used for judging the heat exchange system which should be started according to the outdoor temperature and controlling the corresponding heat exchange system to be started or closed.

The outdoor temperature may include an outdoor dry bulb temperature, an outdoor wet bulb temperature, and the like. The dry bulb temperature is the temperature measured by the thermometer. The wet bulb temperature refers to the lowest temperature that water can reach by evaporation at a certain time. (in the case of the same dry bulb temperature, the greater the humidity in the air, the less volatile the water and the higher the wet bulb temperature, whereas the drier the air, the more volatile the water and the lower the wet bulb temperature).

In one possible implementation, the water cooling system 300 includes: the water-cooled surface air cooler comprises a first water-cooled surface air cooler 310, a second water-cooled surface air cooler 320, a circulating water pump 330 and a first water pipe 340.

Wherein the first water-cooling surface cooler 310 and the second water-cooling surface cooler 320 are connected through a first water pipe 340; the circulating water pump 330 is connected to the first water pipe 340 and configured to provide circulating power of the water cooling system 300.

The first water-cooled surface cooler 310 is configured to exchange heat between the gas on the surface of the first water-cooled surface cooler 310 and the liquid inside the first water-cooled surface cooler 310, and to transfer the heat-exchanged liquid to the second water-cooled surface cooler 320 through the first water pipe 340. The second water-cooled surface cooler 320 is configured to exchange heat between the liquid inside the second water-cooled surface cooler 320 and the gas on the surface of the second water-cooled surface cooler 320, so as to exchange heat between the indoor gas.

The water-cooled surface cooler is a surface cooler using water as medium, and its principle is that the liquid medium flows through the inner cavity of its metal pipeline, and the air to be treated flows through the outer wall of the metal pipeline to make heat exchange so as to attain the goal of heating or cooling air.

Alternatively, the first water-cooling surface cooler 310 and the second water-cooling surface cooler 320 may be two water-cooling surface coolers with the same model and size, two water-cooling surface coolers with the same model and different sizes, two water-cooling surface coolers with different models and different sizes, and the like. The first water-cooling surface cooler 310 and the second water-cooling surface cooler 320 are two water-cooling surface coolers independent of each other, and the specific setting mode of the first water-cooling surface cooler 310 and the second water-cooling surface cooler 320 can be determined according to the actual situation, which is not specifically limited in this application.

In some embodiments, the first water-cooled surface cooler 310 is disposed within the first frame 100 and the second water-cooled surface cooler 320 is disposed within the second frame 200. Alternatively, the second water-cooled surface cooler 320 is disposed in the first frame 100, and the first water-cooled surface cooler 310 may be disposed in the second frame 200. The specific arrangement manner of the first water-cooling surface cooler 310 and the second water-cooling surface cooler 320 may be determined according to practical situations, which is not specifically limited in this application.

Optionally, the water-cooled surface cooler 310 in the first frame 100 has a liquid inlet and a liquid outlet; the water-cooling surface cooler 320 in the second frame 200 also has a liquid inlet and a liquid outlet; a circulation pipeline is arranged between the water-cooling surface cooler 310 and the water-cooling surface cooler 320, and the circulation pipeline is connected with the water-cooling surface cooler through a first water pipe 340. The circulating water pump 330 may be disposed at a middle position of the first water pipe 340, or a specific setting mode of the circulating water pump 330 may be determined according to actual situations, which is not limited in this application.

In one possible implementation, the air cooling system 400 includes: first air-cooled surface cooler 410, second air-cooled surface cooler 420, compressor 430, throttling device (not shown), and air delivery conduit 440.

Wherein, the first air-cooled surface cooler 410 and the second air-cooled surface cooler 420 are connected through the air pipe 440, it can be understood that the air pipe 440 can not only convey gaseous media, but also convey liquid media or gas-liquid mixed media; the compressor 430 is coupled to the air delivery conduit 440 and is configured to compress a medium in the air delivery conduit 440.

It will be appreciated that the air-cooled system 400 is cooled in a manner similar to an air-conditioning system. Wherein the first air-cooled surface cooler 410 acts as a condenser and the second air-cooled surface cooler 420 acts as an evaporator. The throttling device is disposed between the first air-cooled surface cooler 410 and the second air-cooled surface cooler 420.

The first air-cooled surface cooler 410 is configured to exchange heat between the air on the surface of the first air-cooled surface cooler 410 and the medium inside the first air-cooled surface cooler 410, and transfer the heat exchanged medium to the second air-cooled surface cooler 420 through the air pipe 440; the second air-cooled surface cooler 420 is configured to exchange heat between the medium inside the second air-cooled surface cooler 420 and the gas on the surface of the second air-cooled surface cooler 420, so as to exchange heat between the indoor gas.

The principle of the air-cooled surface cooler is that the medium flows through the inner cavity of the metal pipeline, and the air to be treated flows through the outer wall of the metal pipeline to exchange heat so as to achieve the aim of heating or cooling the air.

Alternatively, the first air-cooled surface cooler 410 and the second air-cooled surface cooler 420 may be two air-cooled surface coolers with the same model and size, or two air-cooled surface coolers with the same model and different sizes, or two air-cooled surface coolers with different models and different sizes, or the like. The first air-cooled surface cooler 410 and the second air-cooled surface cooler 420 are two air-cooled surface coolers independent of each other, and the specific setting mode of the first air-cooled surface cooler 410 and the second air-cooled surface cooler 420 can be determined according to actual conditions, which is not specifically limited in this application.

In some embodiments, the first air-cooled surface cooler 410 is disposed within the first frame 100 and the second air-cooled surface cooler 420 is disposed within the second frame 200. Alternatively, the second air-cooled surface cooler 420 is disposed in the first frame 100, and the first air-cooled surface cooler 410 may be disposed in the second frame 200. The specific arrangement manner of the first air-cooled surface cooler 410 and the second air-cooled surface cooler 420 may be determined according to practical situations, which is not specifically limited in this application.

Alternatively, the compressor 430 may be disposed at an intermediate position of the air delivery pipe 440 to divide the air delivery pipe 440 into two parts. One end of the compressor 430 is connected to one end of a portion of the air delivery pipe 440, and the other end of the compressor 430 is connected to one end of another portion of the air delivery pipe 440. The compressor 430 may also be disposed on a side of the first air-cooled surface cooler 410 that is remote from the second air-cooled surface cooler, or on a side of the second air-cooled surface cooler 420 that is remote from the first air-cooled surface cooler. The specific arrangement of the compressor 430 may be determined according to practical situations, and the present application is not limited in particular.

In one possible implementation, the spray system 500 includes: a shower pump 510, a second water pipe 520, and a shower head 530.

Wherein the second water pipe 520 and the external water source are both connected to the spray pump 510, the spray pump 510 being configured to input the external water source to the second water pipe 520; the spray head 530 is disposed on the second water pipe 520, and the spray head 530 is configured to spray water to the water cooling system 300 and the air cooling system 400 in the first frame 100 to further cool the liquid in the water cooling system 300 and the medium in the air cooling system 400.

The spray heads 530 herein may be provided in one or more. If there are a plurality of the nozzles 530, the plurality of nozzles 530 may be disposed in parallel on the second water pipe 520.

Alternatively, the spray system 500 may be disposed within the first frame 100, the spray system 500 may also be disposed within the second frame 200, and the spray system 500 may also be disposed within the first and second frames 100 and 200, respectively. The setting position of the spraying system 500 can be adjusted according to practical situations, and the application is not particularly limited.

In one possible implementation, when the outdoor temperature is lower than the first temperature threshold, the control device controls the water cooling system 300 to be turned on, and the air cooling system 400 and the spraying system 500 to be turned off, so as to switch the heat exchange mode of the heat exchange unit to the first mode.

In the first mode, the outdoor heat sink enters the first frame 100 through the air inlet on the first frame 100 and exchanges heat with the liquid in the water cooling system 300 within the first frame 100; the liquid in the water cooling system 300 in the first frame 100 is transferred to the water cooling system 300 in the second frame 200 through the first water pipe 340; indoor air enters the second frame 200 from an indoor air inlet of the second frame 200, exchanges heat with liquid of the water cooling system 300 in the second frame 200, and enters the room through an indoor air supply inlet of the second frame 200.

The first temperature threshold here is a low temperature threshold below room temperature. For example, the first temperature threshold may be 0 ℃, -5 ℃, -10 ℃, etc. The first temperature threshold may be adjusted according to the actual heat exchange requirement, and the present application is not particularly limited.

The outdoor temperature may be an outdoor dry bulb temperature, and the corresponding first temperature threshold is a first outdoor dry bulb temperature threshold. The outdoor temperature may also be an outdoor wet bulb temperature, and the corresponding first temperature threshold is a first outdoor wet bulb temperature threshold. The outdoor temperature and the temperature type of the first temperature threshold can be adjusted according to actual requirements, and the application is not particularly limited.

It will be appreciated that when the outdoor temperature is low (e.g., below 0 ℃), then the portion of the devices of the water cooling system 300 and the air cooling system 400 that are in heat exchange with the outdoor gas are also in a lower temperature environment. The heat exchange with the outdoor gas is carried out at a lower temperature in the environment, so that a better heat exchange effect can be achieved. Thus, in this mode, there is no need to turn on the spray system 500.

In addition, since the outdoor temperature is low, after the outdoor cold source exchanges heat with the liquid in the water cooling system 300 in the first frame 100, the temperature of the liquid is also low, so that the heat exchange can be performed between the liquid in the water cooling system 300 and the indoor gas only to reduce the temperature of the indoor gas to the temperature required by the indoor gas. In this case, the heat exchange of the indoor gas can be completed only by the water cooling system 300, and thus, the air cooling system 400 does not need to be additionally turned on.

In one possible implementation, when the outdoor temperature is higher than the first temperature threshold and lower than the second temperature threshold, the control device controls the water cooling system 300 and the spraying system 500 to be turned on, and the air cooling system 400 is turned off, so as to switch the heat exchange mode of the heat exchange unit to the second mode.

In the second mode, the spraying system 500 sprays water to the water cooling system 300 in the first frame to further cool the liquid in the water cooling system 300, for example, to spray the surface of the water cooling surface cooler 310 in the first frame 100; the surface of the cooled water cooling system 300 exchanges heat with the liquid in the water cooling system 300 in the first frame 100; the liquid in the water cooling system 300 in the first frame 100 is transferred to the water cooling system 300 in the second frame 200 through the first water pipe 340; indoor air enters the second frame 200 from an indoor air inlet of the second frame 200 and enters the room through an indoor air supply inlet of the second frame 200 after heat exchange is performed by the water cooling system 300 in the second frame 200.

The first temperature threshold is here smaller than the second temperature threshold. The temperature between the first temperature threshold and the second temperature threshold is a lower temperature. For example, the first temperature threshold may be-10 ℃, -5 ℃, 0 ℃, etc. The corresponding second temperature threshold may be-5 deg.c, 0 deg.c, 10 deg.c, etc. The first temperature threshold and the second temperature threshold may be adjusted according to the actual heat exchange requirement, which is not particularly limited in this application.

It will be appreciated that when the outdoor temperature is higher than the first temperature threshold and lower than the second temperature threshold, heat exchange is performed only between the outdoor lower temperature gas and the internal medium of the water cooling system 300, and the temperature of the internal medium of the water cooling system 300 cannot be completely reduced to a desired temperature value. Therefore, in this mode, the spraying system 500 needs to be turned on to spray water to the water cooling system 300 in the first frame 100, so as to further cool the medium inside the water cooling system 300.

In addition, because the outdoor temperature is low, after the outdoor cold source exchanges heat with the liquid in the water cooling system 300 in the first frame 100 and the superimposed spraying system 500 is further cooled, the temperature of the liquid is also low, so that the heat exchange can be performed between the liquid in the water cooling system 300 and the indoor gas only to reduce the temperature of the indoor gas to the temperature required to be reached by the indoor gas. In this case, the heat exchange of the indoor gas can be completed only through the water cooling system 300 and the shower system 500, and thus, the air cooling system 400 does not need to be additionally turned on.

In one possible implementation, when the outdoor temperature is higher than the second temperature threshold and lower than the third temperature threshold, the control device controls the water cooling system 300, the spraying system 500, and the air cooling system 400 to be turned on to switch the heat exchange mode of the heat exchange unit to the third mode.

In a third mode, the spray system 500 sprays water to the water cooling system 300 (e.g., the first water cooling surface cooler 310) and the air cooling system 400 (e.g., the first air cooling surface cooler 410) within the first frame 100 to further cool the liquid within the water cooling system 300 (e.g., the first water cooling surface cooler 310) and the medium within the air cooling system 400 (e.g., the first air cooling surface cooler 410); the liquid in the water cooling system 300 in the first frame 100 is transferred to the water cooling system 300 in the second frame 200 through the first water pipe 340; media in the air-cooled system 400 in the first frame 100 is transferred to the air-cooled system 400 in the second frame 200 through the air duct 440; indoor air enters the second frame 200 from an indoor air inlet of the second frame 200, exchanges heat with the air cooling system 300 in the second frame 200 and the air cooling system 400 in the second frame 200, and then enters the room through an indoor air supply inlet of the second frame 200.

The second temperature threshold is here smaller than the third temperature threshold. The temperature between the second temperature threshold and the third temperature threshold is a higher temperature. For example, the second temperature threshold may be 0 ℃, 5 ℃, 10 ℃, or the like. The corresponding third temperature threshold may be 5 deg.c, 10 deg.c, 20 deg.c, etc. The second temperature threshold and the third temperature threshold may be adjusted according to the actual heat exchange requirement, which is not particularly limited in this application.

It will be appreciated that, due to the high outdoor temperature, the temperature of the outdoor heat sink and the liquid in the water cooling system 300 in the first frame 100 are also high after heat exchange, and the heat exchange between the liquid in the water cooling system 300 and the indoor gas is only insufficient to reduce the temperature of the indoor gas to the temperature to which the indoor gas needs to reach. In this case, the air cooling system 400 may be turned on to supplement the water cooling system 300 through the air cooling system 400, so that heat exchange of indoor gas is completed through the cooperation of the air cooling system 400 and the water cooling system 300.

In one possible implementation, when the outdoor temperature is higher than the third temperature threshold, the control device controls the spraying system 500 and the air cooling system 400 to be turned on, and the water cooling system 300 to be turned off, so as to switch the heat exchange mode of the heat exchange unit to the fourth mode.

In the fourth mode, the spray system 500 sprays water to the air-cooling system 400 within the first frame 100 to further cool the air-cooling system 400; media in the air-cooled system 400 in the first frame 100 is transferred to the air-cooled system 400 in the second frame 200 through the air duct 440; indoor air enters the second frame 200 from an indoor air inlet of the second frame 200 and enters the room through an indoor air supply inlet of the second frame 200 after heat exchange is performed by the air cooling system 400 in the second frame 200.

The third temperature threshold here is a higher temperature threshold. For example, the third temperature threshold may be 30 ℃, 35 ℃, 40 ℃, or the like. The third temperature threshold may be adjusted according to the actual heat exchange requirement, and the present application is not particularly limited.

It will be appreciated that when the outdoor temperature is high (e.g., above 40 ℃), then the portion of the devices of the water cooling system 300 and the air cooling system 400 that exchange heat with the outdoor gas are also in a higher temperature environment. In such higher temperature environments, the liquid in the water cooling system 300 may also be at a higher temperature after heat exchange with the outdoor gas. At this time, if the water cooling system 300 is continuously turned on, when the water cooling system 300 exchanges heat with the indoor gas, the temperature of the indoor gas cannot be reduced, and the indoor temperature may be increased, so that the cooling capacity of the compressor 430 in the air cooling system 400 may be increased. Thus, in this mode, the water cooling system 300 may be turned off, and heat exchange of the indoor gas may be completed only through the air cooling system 400.

In one possible implementation, the gas within the first frame 100 is an outdoor gas; the outdoor air is configured to exchange heat with the liquid in the water cooling system 300 and the medium in the air cooling system 400 in the first frame 100. The gas in the second frame 200 is a room gas; the indoor gas is configured to exchange heat through the liquid in the water cooling system 300 and the medium in the air cooling system 400 in the second frame 200.

Wherein the gas in the first frame 100 is isolated from the gas in the second frame 200.

Optionally, the first frame 100 may include therein: the first water-cooled surface cooler 310, the first air-cooled surface cooler 410, the shower pump 510, the second water pipe 520, the shower head 530, a portion of the first water pipe 340, a portion of the air pipe 440, and the like. The second frame 200 may include therein: the second water-cooled surface cooler 320, the second air-cooled surface cooler 420, another portion of the first water conduit 340, another portion of the air delivery conduit 440, and so forth.

Alternatively, the first frame 100 may include therein: the second water-cooling surface cooler 320, the second air-cooling surface cooler 420, the spray pump 510, the second water pipe 520, the spray head 530, and the like. The second frame 200 may include therein: the first water-cooling surface cooler 310, the first air-cooling surface cooler 410, the spray pump 510, the second water pipe 520, the spray head 530, and the like.

The devices in the first frame 100 and the second frame 200 herein may be set according to actual situations, and the present application is not particularly limited.

It will be appreciated that, in order to reduce the amount of gas to be heat exchanged, the outdoor gas in the first frame 100 may be isolated from the indoor gas in the second frame 200 to prevent the cooling capacity of the heat exchanger unit from being increased when the outdoor temperature is high.

In some embodiments, the outdoor air in the first frame 100 and the indoor air in the second frame 200 may also circulate under preset conditions. For example, when the outdoor temperature is low, the indoor gas heat exchange may be directly accomplished by exchanging the outdoor temperature with the indoor temperature.

In this case, a gas valve may be further provided between the first frame 100 and the second frame 200, the gas valve being opened upon receiving a gas valve opening signal and the gas valve being closed upon receiving a gas valve closing signal. The gas in the first frame 100 and the gas in the second frame 200 can be isolated or circulated according to different conditions.

In one possible implementation, as shown in fig. 2, the first frame 100 and the second frame 200 are provided separately.

The first frame 100 and the second frame 200 may be disposed at two different positions, respectively. The first frame 100 and the second frame 200 may be provided independently of each other at the same position.

For example, the first frame 100 may be disposed outdoors, and the second frame 200 may be disposed indoors. Or the first frame 100 is provided in a factory building, the second frame 200 is provided in a data center, etc. Or the first frame 100 and the second frame 200 are both in a data center, but the first frame 100 and the second frame 200 are independent of each other, etc. The arrangement mode positions of the first frame 100 and the second frame 200 can be adjusted according to practical situations, and the application is not particularly limited.

In some embodiments, the first frame 100 and the second frame 200 may also be integrated in one overall frame.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A heat exchanger unit, comprising: the device comprises a first frame, a second frame, a water cooling system, an air cooling system, a spraying system and a control device;

the first frame comprises the spraying system, a part of the water cooling system and a part of the air cooling system;

the second frame comprises a part of the water cooling system and a part of the air cooling system;

a part of the water cooling system in the first frame is connected with a part of the water cooling system in the second frame through a first water pipe;

a part of the air cooling system in the first frame is connected with a part of the air cooling system in the second frame through an air pipe;

the water cooling system, the air cooling system and the spraying system are all connected with the control device, and the control device is configured to control one or more of the water cooling system, the air cooling system and the spraying system to be started according to outdoor temperature so as to exchange heat with indoor gas through one or more of the water cooling system, the air cooling system and the spraying system.

2. The assembly of claim 1, wherein the water cooling system comprises: the device comprises a first water-cooling surface cooler, a second water-cooling surface cooler, a circulating water pump and a first water pipe;

The first water-cooling surface cooler and the second water-cooling surface cooler are connected through the first water pipe;

the circulating water pump is connected with the first water pipe and is configured to provide circulating power for the water cooling system;

the first water-cooling surface cooler is configured to exchange heat between gas on the surface of the first water-cooling surface cooler and liquid in the first water-cooling surface cooler, and transfer the liquid after heat exchange to the second water-cooling surface cooler through the first water pipe;

the second water-cooling surface cooler is configured to exchange heat between liquid inside the second water-cooling surface cooler and gas on the surface of the second water-cooling surface cooler so as to exchange heat between the indoor gas.

3. The assembly of claim 1, wherein the air cooling system comprises: the device comprises a first air-cooled surface cooler, a second air-cooled surface cooler, a compressor, a throttling device and a gas pipe;

the first air-cooled surface cooler and the second air-cooled surface cooler are connected through the air pipe;

the throttling device is arranged between the first air-cooled surface cooler and the second air-cooled surface cooler; the compressor is connected with the gas pipe and is configured to compress media in the gas pipe;

The first air-cooled surface cooler is configured to exchange heat between gas on the surface of the first air-cooled surface cooler and a medium in the first air-cooled surface cooler, and transfer the medium after heat exchange to the second air-cooled surface cooler through the gas pipe;

the second air-cooled surface cooler is configured to exchange heat between a medium inside the second air-cooled surface cooler and the gas on the surface of the second air-cooled surface cooler so as to exchange heat between the indoor gas.

4. The assembly of claim 1, wherein the spray system comprises: the spray pump, the second water pipe and the spray head;

the second water pipe and an external water source are both connected with the spray pump, and the spray pump is configured to input the external water source to the second water pipe;

the spray head is arranged on the second water pipe, and is configured to spray water to the water cooling system and the air cooling system in the first frame so as to further cool the liquid in the water cooling system and the medium in the air cooling system.

5. The unit according to any one of claims 1-4, wherein the control means controls the water cooling system to be turned on and the air cooling system and the shower system to be turned off to switch the heat exchanging mode of the heat exchanging unit to the first mode when the outdoor temperature is lower than a first temperature threshold;

In the first mode, an outdoor cold source enters the first frame through an air inlet on the first frame and exchanges heat with liquid in the water cooling system in the first frame;

the liquid in the water cooling system in the first frame is transmitted to the water cooling system in the second frame through the first water pipe;

and the indoor gas enters the second frame from an indoor air inlet of the second frame, exchanges heat with liquid of the water cooling system in the second frame, and enters the room through an indoor air supply inlet of the second frame.

6. The unit according to any one of claims 1-4, wherein the control means controls the water cooling system and the spray system to be turned on and the air cooling system to be turned off to switch the heat exchanging mode of the heat exchanging unit to the second mode when the outdoor temperature is higher than the first temperature threshold and lower than the second temperature threshold;

in the second mode, the spraying system sprays water to the water cooling system in the first frame so as to further cool the liquid in the water cooling system;

And the indoor air enters the second frame from the indoor air inlet of the second frame and enters the room through the indoor air supply inlet of the second frame after heat exchange is performed by the water cooling system in the second frame.

7. The unit according to any one of claims 1-4, wherein the control means controls the water cooling system, the spray system and the air cooling system to be turned on to switch the heat exchanging mode of the heat exchanging unit to a third mode when the outdoor temperature is higher than the second temperature threshold and lower than the third temperature threshold;

in the third mode, the spraying system sprays water to the water cooling system and the air cooling system in the first frame so as to further cool the liquid in the water cooling system and the medium in the air cooling system;

the medium in the air cooling system in the first frame is transmitted to the air cooling system in the second frame through the air pipe;

and the indoor air enters the second frame from an indoor air inlet of the second frame, exchanges heat through a water cooling system in the second frame and an air cooling system in the second frame, and then enters the room through an indoor air supply inlet of the second frame.

8. The unit according to any one of claims 1-4, wherein the control means controls the spray system and the air cooling system to be turned on and the water cooling system to be turned off to switch the heat exchanging mode of the heat exchanging unit to the fourth mode when the outdoor temperature is higher than a third temperature threshold;

in the fourth mode, the spraying system sprays water to the air cooling system in the first frame so as to further cool the air cooling system;

and the indoor air enters the second frame from the indoor air inlet of the second frame and enters the room through the indoor air supply inlet of the second frame after heat exchange is carried out by the air cooling system in the second frame.

9. The assembly of claim 1, wherein the plurality of units,

wherein the gas in the first frame is outdoor gas; the outdoor gas is configured to exchange heat between the liquid in the water cooling system and the medium in the air cooling system in the first frame;

The gas in the second frame is indoor gas; the indoor gas is configured to exchange heat through the liquid in the water cooling system and the medium in the air cooling system in the second frame;

wherein the gas in the first frame is isolated from the gas in the second frame.

10. The assembly of claim 9, wherein the first frame and the second frame are separate.