Integrated magnetic suspension phase change cooling unit and data center

Abstract

The utility model discloses an integrated magnetic suspension phase change cooling unit and a data center, the integrated magnetic suspension phase change cooling unit at least comprises a frame body, an evaporator, an outdoor cooling device and a magnetic suspension compressor, the evaporator, the outdoor cooling device and the magnetic suspension compressor are connected in series through copper pipes, the frame body is provided with a first space and a second space, and the first space and the second space are arranged in parallel. The first space is provided with an indoor return air inlet and an indoor air outlet, and the second space is provided with an outdoor air inlet and an outdoor air outlet; the evaporator is located in the first space, and gas entering the first space from the indoor air return opening flows out of the indoor air outlet through the evaporator. The outdoor cooling equipment and the magnetic suspension compressor are located in the second space, and gas entering the second space from the outdoor air inlet flows out of the outdoor air outlet through the outdoor cooling equipment. According to the technical scheme, the distance and the using amount of the copper pipes can be reduced, the reliability and the energy efficiency of the magnetic suspension phase change cooling system are further improved, and the manufacturing cost and the operation cost are reduced.

Description

Technical Field

[0001] The present application relates to the field of data center equipment, and in particular to an integrated magnetic suspension phase change cooling unit and a data center. Background Art

[0002] As the application of magnetic levitation phase change refrigeration technology becomes more and more in-depth, some technical pain points that can be optimized have gradually been exposed during the equipment installation and operation stages. For example, in projects, the length of copper pipes is often long, and the pressure loss of gaseous refrigerants is large, which reduces the refrigeration efficiency of the magnetic levitation compressor.

[0003] In addition, the longer copper pipes bring higher requirements to the installation process and project duration. At the same time, after the equipment is installed and put into operation, the large amount of copper pipes means that the risk of gaseous refrigerant leakage always exists. Once a refrigerant leak occurs, it will greatly affect the operation of the magnetic levitation air-conditioning system and bring risks to the normal operation of the IT server. Utility Model Content

[0004] The purpose of this application is to provide an integrated magnetic levitation phase change cooling unit and data center, which can reduce the distance and usage of copper pipes, further improve the reliability and energy efficiency of the magnetic levitation phase change cooling system, and reduce construction and operating costs.

[0005] To achieve the above-mentioned objectives, the present application provides, on the one hand, an integrated magnetic levitation phase change cooling unit, which includes at least a frame, an evaporator, an outdoor cooling device and a magnetic levitation compressor, wherein the evaporator, the outdoor cooling device and the magnetic levitation compressor are connected in series with each other through a copper tube, wherein the frame has a first space and a second space that are not connected to each other, the first space has an indoor return air inlet and an indoor air outlet, and the second space has an outdoor air inlet and an outdoor air outlet; the evaporator is located in the first space, and the evaporator is located between the indoor return air inlet and the indoor air outlet, and the gas entering the first space from the indoor return air inlet passes through the evaporator and flows out from the indoor air outlet; the outdoor cooling device and the magnetic levitation compressor are located in the second space, and the gas entering the second space from the outdoor air inlet passes through the outdoor cooling device and flows out from the outdoor air outlet.

[0006] To achieve the above-mentioned purpose, the present application further provides a data center on the other hand, which at least includes a room to be cooled and the above-mentioned integrated magnetic levitation phase change cooling unit; the indoor return air inlet and the indoor air outlet are connected to the room to be cooled.

[0007] It can be seen that the technical solution provided by the present application integrates the entire magnetic levitation phase change cooling system into the cabinet, and only connects the indoor return air vent and the indoor air outlet opened on one side of the cabinet to the room to be cooled to achieve heat exchange. Compared with the existing magnetic levitation phase change cooling system in which some components are located indoors and other components are located outdoors, the present application can make the components of the magnetic levitation phase change cooling system more integrated and the distance between components shorter. In this way, the length of the copper pipe connecting the components is also shorter, thereby reducing the amount of copper pipe and insulation material engineering, and greatly reducing the cost of the magnetic levitation phase change cooling system; and, greatly reducing the copper pipe welding nodes, greatly reducing the risk of gaseous refrigerant leakage, further improving the reliability and energy efficiency of the magnetic levitation phase change cooling system, and reducing the cost and operating expenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 This is a structural exploded diagram of an integrated magnetic suspension phase change cooling unit in an embodiment provided in the present application;

[0010] Description of reference numerals:

[0011] 100, frame; 110, first space; 111, indoor return air outlet; 112, indoor air outlet; 120, second space; 121, outdoor air inlet; 122, outdoor air outlet; 200, evaporator; 300, outdoor cooling equipment; 400, magnetic levitation compressor; 510, liquid inlet pipeline; 520, liquid return pipeline; 600, pump body; 700, first one-way valve; 800, second one-way valve. DETAILED DESCRIPTION

[0012] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Terms such as "upper", "above", "lower", "below", "first end", "second end", "one end", "the other end" used in the present application to represent spatial relative positions are used to describe the relationship between a unit or feature as shown in the accompanying drawings relative to another unit or feature for the purpose of convenience of explanation. Terms of spatial relative position may be intended to include different orientations of the device in use or work other than the orientation shown in the figure. For example, if the device in the figure is turned over, the unit described as being "below" or "below" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptors used herein are interpreted accordingly.

[0013] In addition, the terms "installed", "set", "provided with", "connected", "slidingly connected", "fixed", and "sleeved" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0014] In recent years, distributed magnetic levitation phase change cooling systems have gradually been widely used in the industry due to their oil-free, flexible and efficient characteristics.

[0015] As the application of magnetic suspension phase change refrigeration technology gradually deepens, some technical pain points that can be optimized are gradually exposed during the equipment installation and operation stages. For example, due to the high power of the oil-free magnetic suspension compressor (the power of the magnetic suspension compressor is usually: 50~80kW, and the power of the ordinary compressor is only 1~3kW), the pressure of the pressurized gaseous refrigerant is relatively high. In order to withstand the high pressure of the refrigeration system audience, the indoor and outdoor units need to be connected by copper pipes to transport gaseous and liquid refrigerants, and the distance between the indoor and outdoor units is relatively far. This also leads to the fact that the length of the copper pipe is often longer in the project, the pressure loss of the gaseous refrigerant is larger, and the refrigeration efficiency of the magnetic suspension compressor is reduced; in addition, the longer copper pipe brings higher requirements for the installation process and project duration; at the same time, after the equipment is installed and the business is running, the large amount of copper pipes makes the risk of gaseous refrigerant leakage always exist; once the refrigerant leaks, it will greatly affect the operation of the magnetic suspension air-conditioning system and bring risks to the normal operation of the IT server.

[0016] Therefore, how to improve the structure of the refrigeration system, thereby reducing the distance and amount of copper pipes, further improving the reliability and energy efficiency of the magnetic levitation phase change cooling system, and reducing the cost and operating expenses has become an issue that needs to be urgently addressed in this field.

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0018] like Figure 1 As shown, the present application provides an integrated magnetic levitation phase change cooling unit, which integrates the components in the magnetic levitation phase change cooling system into a frame structure to shorten the distance between the components, thereby reducing the amount of copper pipes used to connect the components and the insulation materials thereon, thereby significantly reducing the cost of the magnetic levitation phase change cooling system.

[0019] Specifically, the integrated magnetic suspension phase change cooling unit may include at least a frame 100, an evaporator 200, an outdoor cooling device 300 and a magnetic suspension compressor 400, wherein the evaporator 200, the outdoor cooling device 300 and the magnetic suspension compressor 400 are connected in series with each other through a copper tube. Among them, the frame 100 is used as an integral supporting component to support and protect other components. The frame 100 has a first space 110 and a second space 120 that are not connected to each other, and the first space 110 has an indoor return air port 111 and an indoor air outlet 112, and the indoor return air port 111 and the indoor air outlet 112 are used to communicate with the room to be cooled (for example, a space for placing a server). The second space 120 has an outdoor air inlet 121 and an outdoor air outlet 122, and the outdoor air inlet 121 and the outdoor air outlet 122 are used to communicate with the outdoor air to achieve cooling using the outdoor temperature.

[0020] In practical applications, the frame 100 may be composed of an aluminum alloy frame and a cover plate attached to the frame, and accordingly, the indoor return air vent 111, the indoor air outlet 112, the outdoor air inlet 121 and the outdoor air outlet 122 are formed on the corresponding cover plates.

[0021] The evaporator 200 is located in the first space 110, and the evaporator 200 is located between the indoor return air port 111 and the indoor air outlet 112. The gas entering the first space 110 from the indoor return air port 111 passes through the evaporator 200 and flows out from the indoor air outlet 112. In this embodiment, the high-temperature gas in the room to be cooled flows into the first space 110, contacts the evaporator 200 for heat exchange to form low-temperature gas, and then flows into the room to be cooled, thereby realizing cooling of the air in the room to be cooled.

[0022] The outdoor cooling device 300 and the magnetic levitation compressor 400 are located in the second space 120, and the gas entering the second space 120 from the outdoor air inlet 121 passes through the outdoor cooling device 300 and flows out from the outdoor air outlet 122. The magnetic levitation compressor 400 is used to compress and circulate the refrigerant in the copper tube, and convert the low-pressure and low-temperature gas into a high-pressure and high-temperature gas. The outdoor cooling device 300 is used as a condenser to cool the high-temperature and high-pressure refrigerant gas into a high-pressure liquid refrigerant. In this embodiment, the evaporator 200 forms a high-temperature and low-pressure gas after heat exchange with the air, and the high-temperature and low-pressure gas flows through the magnetic levitation compressor 400 to form a high-temperature and high-pressure gas, and then flows through the outdoor cooling device 300 to exchange heat with the external environment and condense to form a low-temperature and high-pressure liquid.

[0023] In practical applications, the integrated magnetic suspension phase change cooling unit usually also includes an expansion valve, and the low-temperature high-pressure liquid flows through the expansion valve, which is used to limit the flow and reduce the pressure to form a low-temperature low-pressure liquid, and then flows into the evaporator 200 again, and the cycle continues. Among them, the magnetic suspension compressor 400 can refer to the existing technology and will not be repeated here.

[0024] In an achievable implementation, the copper tube includes a liquid inlet pipeline 510 and a liquid return pipeline 520. One end of the liquid inlet pipeline 510 is connected to the liquid outlet of the outdoor cooling device 300, and the other end of the liquid inlet pipeline 510 is connected to the liquid inlet of the evaporator 200. The liquid inlet pipeline 510 is used to transport the refrigerant cooled by the outdoor cooling device 300 to the evaporator 200. One end of the liquid return pipeline 520 is connected to the liquid inlet of the outdoor cooling device 300, and the other end of the liquid return pipeline 520 is connected to the liquid outlet of the evaporator 200. The magnetic levitation compressor 400 is connected in series to the liquid return pipeline 520, and the magnetic levitation compressor 400 is located between the evaporator 200 and the outdoor cooling device 300. The liquid return pipeline 520 is used to sequentially transmit the gas flowing out of the evaporator 200 to the magnetic levitation compressor 400 and the outdoor cooling device 300.

[0025] In an achievable implementation, the integrated magnetic suspension phase change cooling unit further includes a pump body 600, which is connected in series to the liquid inlet pipeline 510. In practical applications, the flow rate of the refrigerant in the copper tube can be changed by adjusting the rotation speed of the pump body 600, thereby adjusting the cooling effect.

[0026] In order to rationally utilize the external ambient temperature, seek optimal operation, and thus reduce the unit's annual operating power consumption. The integrated magnetic suspension phase change cooling unit also includes a first one-way valve 700; the first one-way valve 700 is connected in parallel with the magnetic suspension compressor 400 and then connected in series to the return liquid pipeline 520. The integrated magnetic suspension phase change cooling unit also includes a second one-way valve 800; the second one-way valve 800 is connected in parallel with the pump body 600 and then connected in series to the liquid inlet pipeline 510.

[0027] In this embodiment, when the magnetic levitation compressor 400 is working, the second check valve 800 short-circuits the pump body 600, and the pump body 600 does not work. When the pump body 600 is working, the first check valve 700 short-circuits the magnetic levitation compressor 400, and the magnetic levitation compressor 400 does not work.

[0028] In practical applications, the integrated magnetic suspension phase change cooling unit can be operated with reference to the outdoor dry bulb temperature. For example, when the dry bulb temperature is ≤T1, only the pump body needs to be turned on, and the magnetic suspension compressor does not operate; when T1<dry bulb temperature<T2, the pump body and magnetic suspension compressor can be turned on, while reducing the power consumption of the magnetic suspension compressor; when the dry bulb temperature is ≥T2, the pump body is turned off, and only the magnetic suspension compressor is operated.

[0029] Regarding the specific structural layout inside the integrated magnetic suspension phase change cooling unit, in an achievable implementation, the second space 120 includes a first cavity and a second cavity, and the first cavity and the second cavity are arranged side by side in the horizontal direction. The outdoor cooling device 300 is located in the first cavity, and the magnetic suspension compressor 400, the pump body 600, the first one-way valve 700 and the second one-way valve 800 are located in the second cavity. In this way, the outdoor cooling device 300 can be physically isolated from the magnetic suspension compressor 400 and the pump body 600 to avoid the spread of faults when the outdoor cooling device 300 fails.

[0030] Correspondingly, the outdoor air inlet 121 and the outdoor air outlet 122 are connected to the first cavity, the outdoor air inlet 121 is located on one side of the frame 100, and the outdoor air outlet 122 is located on the side or top surface of the frame 100. The indoor return air inlet 111 and the indoor air outlet 112 are located on one side of the frame 100; the indoor return air inlet 111 and the indoor air outlet 112 are arranged in parallel in the horizontal direction, or the indoor return air inlet 111 and the indoor air outlet 112 are arranged in parallel in the vertical direction.

[0031] In actual applications, in order to allow outdoor air to enter the outdoor cooling device 300 and the first space 110 to circulate with the air in the room to be cooled, fan assemblies are provided at the indoor air outlet 112 and the outdoor air outlet 122 to drive the corresponding air flow.

[0032] The outdoor cooling device 300 is at least one of an air-cooled outdoor unit, an evaporative condenser and a water-cooled cooling tower.

[0033] This embodiment also provides a data center, which includes at least a room to be cooled and the above-mentioned integrated magnetic suspension phase change cooling unit. The room to be cooled is used to install server equipment, and the indoor return air inlet 111 and the indoor air outlet 112 of the integrated magnetic suspension phase change cooling unit are connected to the room to be cooled.

[0034] Furthermore, the data center also includes a temperature sensor, which is used to detect the outdoor dry-bulb temperature so that the magnetic suspension compressor 400 can be started and stopped and / or the operating frequency can be adjusted according to the outdoor dry-bulb temperature.

[0035] It can be seen that the technical solution provided by the present application integrates the entire magnetic levitation phase change cooling system into the cabinet, and only connects the indoor return air vent and the indoor air outlet opened on one side of the cabinet to the room to be cooled to achieve heat exchange. Compared with the existing magnetic levitation phase change cooling system in which some components are located indoors and other components are located outdoors, the present application can make the components of the magnetic levitation phase change cooling system more integrated and the distance between components shorter. In this way, the length of the copper pipe connecting the components is also shorter, thereby reducing the amount of copper pipe and insulation material engineering, and greatly reducing the cost of the magnetic levitation phase change cooling system; and, greatly reducing the copper pipe welding nodes, greatly reducing the risk of gaseous refrigerant leakage, further improving the reliability and energy efficiency of the magnetic levitation phase change cooling system, and reducing the cost and operating expenses.

[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An integrated magnetic suspension phase change cooling unit, characterized in that: The integrated magnetic suspension phase change cooling unit at least comprises a frame, an evaporator, an outdoor cooling device and a magnetic suspension compressor, wherein the evaporator, the outdoor cooling device and the magnetic suspension compressor are connected in series via a copper tube, wherein: The frame has a first space and a second space which are not connected to each other, the first space has an indoor return air inlet and an indoor air outlet, and the second space has an outdoor air inlet and an outdoor air outlet; The evaporator is located in the first space, and the evaporator is located between the indoor return air port and the indoor air outlet, and the gas entering the first space from the indoor return air port passes through the evaporator and flows out from the indoor air outlet; The outdoor cooling device and the magnetic suspension compressor are located in the second space, and the gas entering the second space from the outdoor air inlet passes through the outdoor cooling device and flows out from the outdoor air outlet.

2. The integrated magnetic suspension phase change cooling unit according to claim 1 is characterized in that: The copper tube includes a liquid inlet pipeline and a liquid return pipeline; One end of the liquid inlet pipeline is connected to the liquid outlet of the outdoor cooling device, and the other end of the liquid inlet pipeline is connected to the liquid inlet of the evaporator; One end of the liquid return pipeline is connected to the liquid inlet of the outdoor cooling device, and the other end of the liquid return pipeline is connected to the liquid outlet of the evaporator. The magnetic levitation compressor is connected in series on the liquid return pipeline, and the magnetic levitation compressor is located between the evaporator and the outdoor cooling device.

3. The integrated magnetic suspension phase change cooling unit according to claim 2 is characterized in that: The integrated magnetic suspension phase change cooling unit also includes a pump body, which is connected in series to the liquid inlet pipeline.

4. The integrated magnetic suspension phase change cooling unit according to claim 3 is characterized in that: The integrated magnetic suspension phase change cooling unit also includes a first one-way valve; The first one-way valve is connected in parallel with the magnetic suspension compressor and then in series with the liquid return pipeline.

5. The integrated magnetic suspension phase change cooling unit according to claim 4 is characterized in that: The integrated magnetic suspension phase change cooling unit also includes a second one-way valve; The second one-way valve is connected in parallel with the pump body and then in series with the liquid inlet pipeline.

6. The integrated magnetic suspension phase change cooling unit according to claim 5 is characterized in that: The second space includes a first cavity and a second cavity, and the first cavity and the second cavity are arranged side by side in a horizontal direction; The outdoor cooling device is located in the first cavity, and the magnetic suspension compressor, the pump body, the first one-way valve and the second one-way valve are located in the second cavity; The outdoor air inlet and the outdoor air outlet are in communication with the first cavity, the outdoor air inlet is located at one side of the frame, and the outdoor air outlet is located at a side surface or a top surface of the frame.

7. The integrated magnetic suspension phase change cooling unit according to claim 1 is characterized in that: The indoor air return port and the indoor air outlet are located on one side of the frame; The indoor return air inlet and the indoor air outlet are arranged side by side in a horizontal direction, or the indoor return air inlet and the indoor air outlet are arranged side by side in a vertical direction.

8. The integrated magnetic suspension phase change cooling unit according to claim 1 is characterized in that: The indoor air outlet and the outdoor air outlet are provided with fan components; The outdoor cooling equipment is at least one of an air-cooled outdoor unit, an evaporative condenser and a water-cooled cooling tower.

9. A data center, characterized in that: The data center comprises at least a room to be cooled and an integrated magnetic suspension phase change cooling unit according to any one of claims 1 to 8; The indoor air return port and the indoor air outlet are in communication with the room to be cooled.

10. The data center according to claim 9, characterized in that: The data center further includes a temperature sensor, which is used to detect an outdoor dry-bulb temperature so that the magnetic suspension compressor is started and stopped and / or the operating frequency is adjusted according to the outdoor dry-bulb temperature.

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