Server cabinet and heat exchange equipment cabinet for server

Abstract

The present invention relates to the technical field of Internet technology, and specifically to a server cabinet and a heat exchange equipment cabinet for the server, wherein the server cabinet comprises: a cabinet body; a liquid cooling box, which is arranged in the cabinet body; a server, which is installed in the liquid cooling box, and the server is fully or partially immersed in the cooling liquid; a first heat exchanger, which is arranged in the cabinet body and connected to an external cold source through an external circulation pipe, and is also connected to the liquid cooling box through a first internal circulation pipe; a second heat exchanger, which is arranged in the cabinet body and cools the space outside the liquid cooling box; the second heat exchanger is connected to the first heat exchanger through a second internal circulation pipe, and the external cold source simultaneously exchanges heat with the coolant in the liquid cooling box and the cooling medium in the second heat exchanger, and the first internal circulation pipe, the second internal circulation pipe and the external circulation pipe are independent of each other. Beneficial effect: The second heat exchanger has an independent cooling medium circulation, which is no longer taken from other heat dissipation systems, and has strong independence, can avoid interference with other heat dissipation systems, and easily achieves a better heat exchange effect.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet technology, and in particular to a server cabinet and a heat exchange equipment cabinet for the server. Background Art

[0002] The development of Internet technology is changing with each passing day. The number of large-scale centralized data centers is increasing. Energy conservation in data centers is a future development trend. The country has increasingly higher energy conservation requirements for the communications industry, especially data centers.

[0003] The power of server chips is increasing year by year. Currently, most of them use air cooling for heat dissipation. However, due to the small specific heat capacity of air and the large temperature gradient of heat exchange, this method is inefficient and consumes a lot of energy. Especially when the power of a single server chip exceeds 300W, traditional air cooling can no longer meet the chip cooling requirements. In this context, liquid cooling, and even a combination of liquid and air cooling, has emerged.

[0004] For example, Chinese invention patent application publication number CN108811472A discloses a liquid-cooled server device, server, and liquid cooling apparatus. The liquid-cooled server device includes at least one server, which includes a frame. The lower portion of the frame is provided with a high-density energy-consuming device (i.e., a high-heat-generating device) immersed in a coolant, and the upper portion of the frame is provided with a low-density energy-consuming device (i.e., a low-heat-generating device) located above the coolant. The liquid cooling apparatus includes an immersion cabinet, a cooling assembly, and a heat exchanger. The immersion cabinet includes a housing for containing the coolant and at least one server, and a top cover detachably connected to the housing. The cooling assembly is disposed within the immersion cabinet, above the coolant, and corresponding to the low-heat-generating device. The cooling assembly is configured to provide cooling to the low-heat-generating device. The cooling assembly may be a radiant cold plate, an air conditioner, or other refrigeration terminal. A fan may also be provided to accelerate the flow of cooling energy emitted by the radiant cold plate.

[0005] A heat exchanger, located outside the immersion cabinet, exchanges heat between the coolant in the immersion cabinet and the cooling medium in an external heat dissipation system. This external heat dissipation system can be a cooling tower, dry cooler, or other heat removal device. Cooling water flows through the radiant cold plate, and cooling water inlet and outlet pipes transfer heat to the external heat dissipation system. Alternatively, the cooling medium for the radiant cold plate can be provided by the coolant outside the immersion cabinet, or by the coolant inside the immersion cabinet.

[0006] The above-mentioned cooling assembly does not have its own independent cooling medium circulation, and its heat dissipation effect depends entirely on the cooling medium conditions of other heat dissipation systems. For example, when the cooling medium is provided by the coolant immersed in the cabinet, the cooling effect of the cooling assembly depends entirely on the conditions of the coolant in the cabinet. The temperature of the coolant in the cabinet is relatively high and also needs to be circulated for cooling. In this way, the cooling effect of the cooling assembly is relatively limited, and the cooling effect is poor.

[0007] When the cooling medium is provided by the coolant outside the immersion cabinet, since the radiant cold plate uses a circulating pump to extract the coolant outside the immersion cabinet, a circulating pump is also installed on the coolant delivery pipeline between the immersion cabinet and the heat exchanger. The two circulating pumps are connected in parallel. At this time, the start of any circulating pump will inevitably affect the operating effect of the other circulating pump. There will be interference between the two circulation systems, resulting in unsatisfactory heat exchange effects for each.

[0008] When the cooling medium is cooling water and is provided by an external heat dissipation system, the cooling component is directly connected to the external heat dissipation system. The external heat dissipation system first exchanges heat with the cooling component and then exchanges heat with the coolant in the immersed cabinet. This will affect the heat exchange effect of the external heat dissipation system on the coolant in the immersed cabinet. Summary of the Invention

[0009] The purpose of the present invention is to provide a server cabinet with relatively strong independence and easier to achieve better heat exchange effect; the purpose of the present invention is also to provide a server heat exchange equipment cabinet with relatively strong independence and easier to achieve better heat exchange effect.

[0010] To achieve the above objectives, the server cabinet in the present invention adopts the following technical solutions:

[0011] A server cabinet, comprising:

[0012] Cabinet;

[0013] A liquid cooling box is arranged in the cabinet, the liquid cooling box is used to contain coolant, and a coolant inlet and a coolant outlet are provided on the liquid cooling box;

[0014] The server is installed in a liquid cooling box. When in use, the server is fully or partially immersed in the cooling liquid;

[0015] A first heat exchanger is disposed in the cabinet, the first heat exchanger is used to connect to an external cold source through an external circulation pipe, the first heat exchanger is also connected to the coolant inlet and coolant outlet of the liquid cooling box through a first internal circulation pipe, and a first circulation pump is provided on the first internal circulation pipe;

[0016] A second heat exchanger is disposed in the cabinet and is used to cool the space outside the liquid cooling box;

[0017] Among them, the second heat exchanger is connected to the first heat exchanger through a second internal circulation pipe, so that the external cold source simultaneously exchanges heat with the coolant in the liquid cooling box and the cooling medium in the second heat exchanger. A second circulation pump is provided on the second internal circulation pipe, and the first internal circulation pipe, the second internal circulation pipe and the external circulation pipe are independent of each other.

[0018] The beneficial effect of the above technical solution is that the second heat exchanger is connected to the first heat exchanger through the second internal circulation pipe, so that the external cold source can simultaneously exchange heat with the coolant in the liquid cooling box and the cooling medium in the second heat exchanger, and the first internal circulation pipe, the second internal circulation pipe and the external circulation pipe are independent of each other, that is, the circulation of the coolant in the liquid cooling box, the circulation of the cooling medium in the second heat exchanger and the circulation of the cooling medium in the external cold source. These three heat dissipation systems are independent of each other and do not affect each other. The second heat exchanger has its own independent cooling medium circulation and no longer takes it from other heat dissipation systems. It has strong independence, which can avoid interference with other heat dissipation systems and make it easier to achieve better heat exchange effects.

[0019] Furthermore, in order to improve the operating environment quality of the equipment, a filter core for purifying gas is also provided in the cabinet.

[0020] Furthermore, in order to simultaneously recover the liquid condensed on the filter element and the second heat exchanger, the filter element is arranged close to the second heat exchanger, and a liquid recovery tank is provided at the bottom of the filter element and the second heat exchanger; the liquid recovery tank is connected to the liquid cooling box through a return pipe, or an overflow tank connected to the liquid cooling box is provided in the cabinet, and the overflow tank is used for the coolant exceeding a certain height to flow in and store, and the liquid recovery tank is connected to the overflow tank through a return pipe.

[0021] Furthermore, in order to cooperate with the server and meet customer needs, an independent rack is set above the liquid cooling box in the cabinet, and at least one device including a switch, an uninterruptible power supply, a monitoring host, a router and a disk array is installed on the independent rack.

[0022] Furthermore, in order to facilitate wiring and maintenance, a port expansion module is also installed in the cabinet. The port expansion module is located outside the liquid cooling box. The port expansion module includes multiple expansion ports, and each expansion port is connected to multiple ports on the server one by one through a cable.

[0023] To achieve the above objectives, the server heat exchange equipment cabinet in the present invention adopts the following technical solutions:

[0024] A heat exchange equipment cabinet for a server, comprising:

[0025] Cabinet;

[0026] A first heat exchanger is disposed in the cabinet, the first heat exchanger is used to connect to an external cold source through an external circulation pipe, and the first heat exchanger is also used to connect to the coolant inlet and coolant outlet of the server liquid cooling box through a first internal circulation pipe, and a first circulation pump is provided on the first internal circulation pipe;

[0027] A second heat exchanger is disposed in the cabinet and is used to cool the space outside the server liquid cooling box;

[0028] Among them, the second heat exchanger is connected to the first heat exchanger through a second internal circulation pipe, so that the external cold source can simultaneously exchange heat with the coolant in the server liquid cooling box and the cooling medium in the second heat exchanger. A second circulation pump is provided on the second internal circulation pipe, and the first internal circulation pipe, the second internal circulation pipe and the external circulation pipe are independent of each other.

[0029] The beneficial effect of the above technical solution is that the second heat exchanger is connected to the first heat exchanger through the second internal circulation pipe, so that the external cold source can simultaneously exchange heat with the coolant in the server liquid cooling box and the cooling medium in the second heat exchanger, and the first internal circulation pipe, the second internal circulation pipe and the external circulation pipe are independent of each other, that is, the circulation of the coolant in the server liquid cooling box, the circulation of the cooling medium in the second heat exchanger and the circulation of the cooling medium in the external cold source. These three heat dissipation systems are independent of each other and do not affect each other. The second heat exchanger has its own independent cooling medium circulation and no longer takes it from other heat dissipation systems. It has strong independence, which can avoid interference with other heat dissipation systems and make it easier to achieve better heat exchange effects.

[0030] Furthermore, in order to improve the operating environment quality of the equipment, a filter core for purifying gas is also provided in the cabinet.

[0031] Furthermore, in order to simultaneously recover the liquid condensed on the filter core and the second heat exchanger, the filter core is arranged close to the second heat exchanger, and a liquid recovery tank is provided at the bottom of the filter core and the second heat exchanger.

[0032] Furthermore, in order to facilitate secondary utilization, the liquid recovery tank is used to be connected to the server liquid cooling box through a return pipe, or the liquid recovery tank is used to be connected to an overflow tank connected to the server liquid cooling box through a return pipe.

[0033] Furthermore, in order to improve the cooling effect, a fan is provided in the cabinet, and the fan is used to cooperate with the second heat exchanger to blow out cold air. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the internal structure of a server cabinet in the present invention;

[0035] Figure 2 This is a partial structural diagram of the server cabinet in the present invention.

[0036] In the figure: 100-heat exchange equipment cabinet; 101-filter element; 102-second heat exchanger; 103-fan; 104-second circulation pump; 105-liquid recovery tank; 106-return pipe; 107-second internal circulation pipeline; 108-external circulation pipeline; 109-first heat exchanger; 110-first internal circulation pipeline; 111-first circulation pump; 112-overflow box; 113-overflow pipe; 114-mounting plate; 115-air inlet; 200-network equipment cabinet; 201-independent rack; 202-lifting device; 203-multi-function panel; 204-power distributor; 205-liquid cooling box; 206-server. DETAILED DESCRIPTION

[0037] An embodiment of the server cabinet in the present invention is as follows Figure 1 As shown, it includes a heat exchange equipment cabinet 100 and a network equipment cabinet 200 that are combined together.

[0038] The network equipment cabinet 200 is equipped with a liquid cooling tank 205 for storing coolant. The network equipment in the cabinet 200 includes servers 206 and ancillary devices. Multiple servers 206 are vertically mounted side by side within the cooling tank 205. During operation, all or part of the servers 206 are immersed in the coolant. To facilitate the circulation of the coolant and improve heat dissipation for the servers 206, the cooling tank 205 is equipped with a coolant inlet and outlet.

[0039] To facilitate wiring and maintenance, a port expansion module is installed within the network equipment cabinet 200 and located outside the liquid cooling box 205. The module includes a multifunction panel 203 and a power distributor 204. Each of these includes multiple expansion ports, each connected to a corresponding port on the server 206 via a cable (not shown). This eliminates the need to remove the server 206 when connecting or servicing it, facilitating wiring and maintenance.

[0040] In addition, in order to facilitate lifting the server 206 for installation, a lifting device 202 is provided above the liquid cooling box 205 in the cabinet body of the network equipment cabinet 200 .

[0041] A separate rack 201 is installed above the liquid cooling tank 205 within the network equipment cabinet 200. This rack is located above a lifting device 202. Ancillary equipment is installed on this rack. These include at least one of a switch, an uninterruptible power supply (UPS), a monitoring host, a router, and a disk array, configured according to customer needs. These ancillary equipment generate relatively little heat and cannot be immersed in coolant for heat dissipation.

[0042] A first heat exchanger 109 is provided in the cabinet of the heat exchange equipment cabinet 100. The first heat exchanger 109 is used to connect to an external cold source through an external circulation pipe 108. The external cold source can be a dry cooler, a cooling tower, a refrigerator, or other cooling equipment. The coolant inlet and coolant outlet on the liquid cooling box 205 are connected to the first heat exchanger 109 through a first internal circulation pipe 110. The first internal circulation pipe 110 is provided with a first circulation pump 111. Under the action of the first circulation pump 111, the coolant in the liquid cooling box 205 enters the first internal circulation pipe 110 through the coolant outlet. After being cooled by the first heat exchanger 109, it is re-injected into the liquid cooling box 205 through the coolant inlet, forming a circulation. In order to facilitate the monitoring of the temperature of the coolant, temperature sensors are provided on the first internal circulation pipe 110 and in the liquid cooling box 205.

[0043] A second heat exchanger 102 is also provided in the cabinet body of the heat exchange equipment cabinet 100. The second heat exchanger 102 is connected to the first heat exchanger 109 through a second internal circulation pipe 107, so that the external cold source can simultaneously exchange heat with the coolant in the liquid cooling box 205 and the cooling medium in the second heat exchanger 102. A second circulation pump 104 is provided on the second internal circulation pipe 107, and the first internal circulation pipe 110, the second internal circulation pipe 107 and the external circulation pipe 108 are independent of each other.

[0044] In this way, there are at least three independent medium channels in the first heat exchanger 109, the circulation of coolant in the liquid cooling box 205, the circulation of cooling medium in the second heat exchanger 102, and the circulation of cooling medium in the external cold source. These three heat dissipation systems are independent of each other and do not affect each other. The second heat exchanger 102 has its own independent cooling medium circulation and no longer takes it from other heat dissipation systems. It has strong independence. Compared with the existing technology, it can avoid interference with other heat dissipation systems and is easier to achieve better heat exchange effects.

[0045] Heat exchange cabinet 100 also houses a filter element 101 for purifying gas. This element is positioned adjacent to second heat exchanger 102, and a liquid recovery tank 105 is located at the bottom of both elements. Heat exchange cabinet 100 also houses an overflow tank 112, which connects to liquid cooling tank 205 via an overflow pipe 113. This overflow tank 112 receives and stores coolant exceeding a certain height. The liquid recovery tank 105 is connected to the overflow tank via a return pipe 106.

[0046] Combine Figure 2 As shown, a vertical mounting plate 114 is provided in the cabinet body of the heat exchange equipment cabinet 100, and two upper and lower fans 103 are installed on the mounting plate 114. Two upper and lower air inlets 115 are also provided on the mounting plate 114, wherein the air inlet 115 and the fan 103 located on the upper side are facing the area where the auxiliary equipment is located. Under the action of the second heat exchanger 102, the air entering through the air inlet 115 is cooled and then blown out from the fan 103. The blown cold air can dissipate heat for the auxiliary equipment.

[0047] The air inlet 115 and the fan 103 located on the lower side are used to dissipate heat from the space above the liquid cooling box 205. For example, the port expansion module can be dissipated. In particular, when the server 206 is installed in a partially immersed manner, the high-heat generating components at the bottom of the server 206, such as the motherboard, CPU, memory, power supply, and GPU, are immersed in the coolant, and the low-heat generating components at the top of the server 206, such as the mechanical hard disk and the photoelectric conversion module, are located above the liquid level of the coolant. Since the low-heat generating components cannot be immersed in the coolant, the cold air blown out by the fan at the lower side can just dissipate heat from the low-heat generating components.

[0048] The server cabinet of the present invention has a heat dissipation method that combines air cooling and liquid cooling. The coolant in the liquid cooling box 205 dissipates all or part of the heat from the server 206. The second heat exchanger 102 and the fan 103 cooperate to cool the space outside the liquid cooling box, thereby ensuring the heat dissipation effect of various heating components in the cabinet.

[0049] Filter core 101 filters and absorbs volatile coolant, ensuring air cleanliness and preventing it from depositing on servers and ancillary equipment, potentially affecting their normal operation. Liquid condensed on filter core 101 and second heat exchanger 102 is recycled and reused, saving costs and ensuring a clean and tidy cabinet.

[0050] In other embodiments of the server cabinet, the server cabinet is not composed of a heat exchange equipment cabinet and a network equipment cabinet combined together, but is an independent and complete cabinet.

[0051] In other embodiments of the server cabinet, a fan may not be provided in the cabinet body of the heat exchange equipment cabinet, and cooling is performed solely by the heat dissipated by the second heat exchanger.

[0052] In other embodiments of the server cabinet, the liquid recovery tank may also be directly connected to the liquid cooling box through a return pipe.

[0053] In other embodiments of the server cabinet, the filter core and the second heat exchanger may also be arranged non-closely, with a liquid recovery tank provided at the bottom of both.

[0054] In other embodiments of the server cabinet, the bottom of the filter core and the second heat exchanger may not be provided with a liquid recovery tank.

[0055] In other embodiments of the server cabinet, the filter core may not be provided in the cabinet body of the heat exchange equipment cabinet, and in this case, the server cabinet does not have the gas purification function.

[0056] In other embodiments of the server cabinet, the port expansion module may not be installed in the cabinet body of the network equipment cabinet, and the server needs to be removed for wiring and maintenance.

[0057] In other embodiments of the server cabinet, an independent rack may not be installed in the cabinet body of the network equipment cabinet, and the user can configure the auxiliary equipment according to actual needs after purchasing the server cabinet.

[0058] The embodiment of the heat exchange equipment cabinet for servers in the present invention is as follows: The specific structure of the heat exchange equipment cabinet for servers is the same as that of the heat exchange equipment cabinet in the above-mentioned server cabinet embodiment, and will not be repeated here.

Claims

1. A server cabinet, characterized in that: Including heat exchange equipment cabinets and network equipment cabinets combined together; The liquid cooling box is arranged in the cabinet of the network equipment cabinet and is used to contain the cooling liquid. The liquid cooling box is provided with a cooling liquid inlet and a cooling liquid outlet; The server is installed in a liquid cooling box. When in use, the server is fully or partially immersed in the cooling liquid; A first heat exchanger is disposed in the cabinet of the heat exchange equipment cabinet and is used to connect to an external cold source through an external circulation pipe. The first heat exchanger is also connected to the coolant inlet and coolant outlet of the liquid cooling box through a first internal circulation pipe. A first circulation pump is provided on the first internal circulation pipe; The second heat exchanger is arranged in the cabinet of the heat exchange equipment cabinet and is used to cool the space outside the liquid cooling box; The second heat exchanger is connected to the first heat exchanger through a second internal circulation pipe, so that the external cold source can simultaneously exchange heat with the coolant in the liquid cooling box and the cooling medium in the second heat exchanger. A second circulation pump is provided on the second internal circulation pipe. The first internal circulation pipe, the second internal circulation pipe and the external circulation pipe are independent of each other. The first heat exchanger has three independent medium channels. The circulation of the coolant in the liquid cooling box, the circulation of the cooling medium in the second heat exchanger and the external cold source are independent of each other. A port expansion module and an independent rack are installed in the cabinet of the network equipment cabinet above the liquid cooling box, and ancillary equipment are installed on the independent rack, which includes at least one of a switch, an uninterruptible power supply, a monitoring host, a router and a disk array; a vertical mounting plate is provided in the cabinet of the heat exchange equipment cabinet, and two upper and lower fans are installed on the mounting plate, and two upper and lower air inlets are also provided on the mounting plate. The upper air inlet and fan are facing the area where the ancillary equipment is located, and the lower air inlet and fan are used to dissipate heat for the port expansion module or the port expansion module and the low-heat components on the upper part of the server that are not immersed in the coolant. The independent rack separates the upper air inlet and fan from the lower air inlet and fan.

2. The server cabinet according to claim 1, wherein: The heat exchange equipment cabinet is also provided with a filter core for purifying gas.

3. The server cabinet according to claim 2, wherein: The filter core is arranged close to the second heat exchanger, and a liquid recovery tank is provided at the bottom of the filter core and the second heat exchanger; the liquid recovery tank is connected to the liquid cooling tank through a return pipe, or an overflow tank connected to the liquid cooling tank is provided in the cabinet of the heat exchange equipment cabinet, and the overflow tank is used for the coolant exceeding a certain height to flow in and store, and the liquid recovery tank is connected to the overflow tank through a return pipe.

4. The server cabinet according to any one of claims 1 to 3, wherein: The port expansion module includes multiple expansion ports, and each expansion port is connected to multiple ports on the server in a one-to-one correspondence through a cable.

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