Intelligent water source cooling module and liquid cooling server cabinet thereof

Abstract

The utility model discloses an intelligent water source cooling module and a liquid cooling server cabinet thereof, and relates to the technical field of data center liquid cooling, the intelligent water source cooling module comprises a bottom plate and a lining plate, the right part and the left part of the upper end of the bottom plate are fixedly connected with an air inlet fan and an air outlet fan respectively through switching fixing pieces, and the lining plate is located on the right side of the air outlet fan. The lining plate is fixedly connected to the left portion of the upper end of the bottom plate through bolts and nuts, the lining plate frame is higher than the bottom plate, the upper end of the bottom plate is located on the left side of the air inlet fan and fixedly connected with a surface air cooler through an adapter fixing piece, and two evaporators are arranged at the upper end of the bottom plate and located on the left side of the surface air cooler. According to the intelligent water source cooling module, the evaporator, the electronic expansion valve, the plate exchange type condenser, the compressor, the inlet and outlet fan and the surface air cooler are arranged to form a self-circulation cold and hot air channel in the cabinet, heat dissipation of modules such as a power supply and a hard disk is achieved, heat dissipation dead angles do not exist, the cold and hot air mixing phenomenon is avoided, nearby accurate air supply is achieved, and the refrigeration efficiency of the intelligent water source cooling module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling of data centers, in particular to an intelligent water source cooling module and a liquid cooling server cabinet thereof. Background Art

[0002] Data servers are a type of computer that runs faster, handles higher loads, and is more expensive than regular computers. They provide computing or application services to other clients on a network. Servers feature high-speed CPU computing power, long-term reliable operation, strong I / O external data throughput, and excellent scalability. However, due to their constant operation, servers generate significant heat, often leading to downtime due to overheating. Therefore, cooling equipment is typically installed on servers during their use.

[0003] At present, traditional liquid-cooled data centers adopt the mode of liquid-cooled back doors or inter-row air conditioners. The liquid-cooled cabinets use two sets of pipe networks, namely the cooling tower pipe network and the air-cooled chiller pipe network of the inter-row air conditioners. This greatly increases the construction difficulty and increases the construction cost. At the same time, there is the problem of uneven heat dissipation and cooling capacity distribution of modules such as power supplies, hard drives, and network cards. Therefore, an intelligent water source cooling module and its liquid-cooled server cabinet are proposed to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, an intelligent water source cooling module is provided. This technical solution solves the problem proposed in the above background technology that the current traditional liquid-cooled data center adopts a liquid-cooled back door or row-to-row air conditioner model. The liquid-cooled cabinet uses two sets of pipe networks, namely the cold tower pipe network and the air-cooled chiller pipe network of the row-to-row air conditioner, which greatly increases the construction difficulty and increases the construction cost. At the same time, there is a problem of uneven heat dissipation and cooling capacity distribution of modules such as power supplies, hard drives, and network cards.

[0005] In order to achieve the above purpose, the technical solution adopted by this utility model is:

[0006] The cooling fan is fixedly mounted on the cooling fan frame, and the cooling fan is installed on the cooling fan frame of the cooling fan frame.

[0007] Preferably, a liquid inlet is provided on one side of the bottom plate, one end of the liquid inlet is connected to a water inlet pipe, and the water inlets of the surface cooler and the plate exchange condenser are both connected to the water inlet pipe through connecting pipes.

[0008] Preferably, a liquid outlet is provided on one side of the base plate, one end of the liquid outlet is connected to a water outlet pipe, the water outlets of the surface cooler and the plate exchange condenser are connected to the water outlet pipe through connecting pipes, and a pressure control valve is provided on the connecting pipe for connecting to the water outlet of the plate exchange condenser.

[0009] Preferably, the outlets of the two evaporators are fixedly connected to the input ends of the two compressors through connecting pipes, and the output end of the compressor is fixedly connected to the air inlet of the plate exchange condenser through a pipe.

[0010] Preferably, the air outlet of the plate exchange condenser is connected to an electronic expansion valve via a pipeline, and the outlet of the electronic expansion valve is connected to the air inlet of the evaporator via a connecting pipeline.

[0011] Preferably, a drain port is provided on one side of the bottom plate, one end of the drain port is connected to a drain pipe, the drain pipe is connected to the water removal pipe, and an electric two-way valve is provided on the drain pipe.

[0012] Preferably, an operation display screen is provided on one side of the intelligent water source cooling module.

[0013] Furthermore, the present invention also provides a liquid-cooled server cabinet, comprising any one of the intelligent water source cooling modules described above.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This solution proposes an intelligent water source cooling module. By setting up an evaporator, electronic expansion valve, plate exchange condenser, compressor, inlet and outlet fans and surface cooler, a self-circulating hot and cold air duct is formed in the cabinet. It is used for heat dissipation of modules such as power supply, hard disk, network card, etc. There are no dead corners for heat dissipation, which avoids the mixing of hot and cold air, realizes precise air supply nearby, and improves the cooling efficiency of the intelligent water source cooling module.

[0016] In this solution, the intelligent water source cooling module is used as a cabinet-level refrigeration device. It can be used in parallel with other cabinets when deployed in the computer room to achieve inter-row cooling and hot backup, greatly improving the overall reliability of the refrigeration system.

[0017] In this solution, the primary side HVAC system can share a cold source and adopt a set of cooling tower pipe network, which reduces the construction difficulty and saves construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a connection diagram of the plate exchange condenser of the utility model;

[0020] Figure 3 Schematic diagram of the connection between the upper cover and the bottom plate in the utility model.

[0021] The numbers in the figure are:

[0022] 1. Base plate; 2. Lining plate; 3. Surface cooler; 4. Electric two-way valve; 5. Pressure control valve; 6. Evaporator; 7. Electronic expansion valve; 8. Plate exchange condenser; 9. Compressor; 10. Air inlet fan; 11. Air outlet fan; 12. Liquid inlet; 13. Liquid outlet; 14. Liquid drain; 15. Electrical module; 16. Operation display; 17. Top cover. DETAILED DESCRIPTION

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0024] Reference Figure 1 and Figure 3As shown, an intelligent water source cooling module includes a base plate 1 and a liner 2. The upper end of the base plate 1 is fixedly connected to the upper cover 17 by bolts and nuts. The right and left parts of the upper end of the base plate 1 are located on the inner side of the upper cover 17 and are provided with an air inlet fan 10 and an air outlet fan 11. The air inlet fan 10 and the air outlet fan 11 are fixedly connected to the base plate 1 and the upper cover 17 by adapter fixings. The liner 2 is located on the right side of the air outlet fan 11. The liner 2 is fixedly connected to the upper left part of the base plate 1 by bolts and nuts. The liner 2 is higher than the base plate 1. The upper end of the base plate 1 is located at the air inlet fan 11. The left side of the fan 10 is fixedly connected to the surface cooler 3 through a switching fixture. The upper end of the bottom plate 1 is located on the left side of the surface cooler 3 and two sets of evaporators 6 are provided. The two sets of evaporators 6 are fixed in parallel with fixed structural parts and locked to the upper end of the bottom plate 1 and maintain a certain distance from the surface cooler 3. The front and rear parts of the upper end of the lining plate 2 are fixedly connected to the plate exchange condenser 8. The front part of the upper end of the lining plate 2 is located on the left side of the front plate exchange condenser 8 and is fixedly connected to two compressors 9. The rear part of the upper end of the bottom plate 1 is located on the left side of the rear plate exchange condenser 8 and an electrical module 15 is provided.

[0025] Furthermore, a liquid inlet 12 is provided on one side of the bottom plate 1 , one end of the liquid inlet 12 is connected to a water inlet pipe, and the water inlets of the surface cooler 3 and the plate exchange condenser 8 are both connected to the water inlet pipe through connecting pipes.

[0026] Furthermore, a liquid outlet 13 is provided on one side of the base plate 1, and one end of the liquid outlet 13 is connected to a water outlet pipe. The water outlets of the surface cooler 3 and the plate exchange condenser 8 are connected to the water outlet pipe through connecting pipes, and a pressure control valve 5 is provided on the connecting pipe for connecting to the water outlet of the plate exchange condenser 8.

[0027] Furthermore, when the outdoor ambient temperature is low, the liquid working medium exchanges heat with the outdoor cold air through a closed cooling tower, and is naturally cooled to obtain cold capacity. When the liquid supply temperature is lower than 18°C, the intelligent water source cooling module adopts a surface cooling heat exchange mode, and the low-temperature liquid working medium is sent into the surface cooler 3 of the intelligent water source cooling module through the primary side circulation pump. The high-temperature air generated by the server in the hot channel in the cooling cabinet during operation will be blown through the surface cooler 3 through the air inlet fan 10. When the high-temperature air passes through the surface cooler 3, the heat will be transferred to the low-temperature liquid working medium, and then cooled. The cooled air is then sent into the cold channel in the cabinet by the air outlet fan 11 to form a circulation, which can improve the cooling efficiency and ensure that the equipment operates at an appropriate temperature.

[0028] Furthermore, the outlets of the two evaporators 6 are fixedly connected to the input ends of the two compressors 9 through pipelines, and the output end of the compressor 9 is fixedly connected to the air inlet of the plate exchange condenser 8 through a pipeline.

[0029] Furthermore, the air outlet of the plate exchange condenser 8 is connected to the electronic expansion valve 7 via a pipeline, and the outlet of the electronic expansion valve 7 is connected to the air inlet of the evaporator 6 via a connecting pipeline.

[0030] Furthermore, a drain port 14 is provided on the right side of the bottom plate 1 , one end of the drain port 14 is connected to a drain pipe, the drain pipe is connected to the water removal pipe, and an electric two-way valve 4 is provided on the drain pipe.

[0031] Furthermore, when the liquid supply temperature is higher than 23°C, the intelligent water source cooling module adopts a direct expansion heat exchange mode, and Freon is used as a refrigerant to absorb the heat of the heat channel in the cabinet through the evaporator 6, causing it to vaporize, thereby achieving refrigeration. The compressor 9 extracts and compresses the steam generated in the evaporator 6 to form high-temperature and high-pressure steam, which is sent to the plate exchange condenser 8 for heat exchange with the low-temperature cooling liquid working medium, causing the refrigerant to condense into a high-pressure liquid, and then re-enters the evaporator 6 after being reduced in pressure by the electronic expansion valve 7, completing a cycle. The cooled air is sent back to the cabinet by the air outlet fan 11 and continues to circulate to maintain the normal temperature of the equipment.

[0032] Furthermore, the intelligent water source cooling module adopts a hot backup redundant configuration and has a dual-path fluorine refrigeration loop. If one compressor 9 fails, the other compressor 9 can automatically take over, ensuring the stability and reliability of the system and providing time guarantee for equipment fault repair.

[0033] Furthermore, when the supply temperature of the liquid working medium on the primary side is between 18°C ​​and 23°C, the intelligent water source cooling module adopts a mixed cooling and heat exchange mode, giving priority to using natural cold sources for cooling, and the insufficient part is supplemented by compressor 9 for cooling, so as to achieve efficient and economical temperature control effect.

[0034] Furthermore, the intelligent water source cooling module is internally integrated with a temperature sensor and a flow sensor, which can monitor the liquid temperature and flow when the intelligent water source cooling module is in use. The electrical module 15 is responsible for the electrical control of the system, including starting, stopping, and adjusting operating parameters, etc. It receives signals from the sensor and converts them into instructions that can be used by other parts of the system, provides overload, short circuit and other protection functions, and ensures the safe operation of the equipment.

[0035] Furthermore, an operation display screen 16 is provided on one side of the intelligent water source cooling module. The operation display screen 16 provides the user with an intuitive operation interface, which can display the system status, operating parameters and fault information, allowing the user to input the air outlet temperature setting value, and monitor the adjustment effect in real time, display alarms and fault prompts, and help users quickly identify and solve problems.

[0036] Furthermore, the pipes in the present invention involve stainless steel cooling water pipes and fluorine pipes. Fluorine pipes are used at the cold air outlet of the evaporator 6. The fluorine pipes are welded with copper pipes and coated with paint film on the surface. The temperature of the liquid working medium in these copper pipes is relatively low, and condensation water is easily formed on the outside of the copper pipes. In order to avoid covering the outside of the pipes with too much insulation material, which leads to excessive air duct resistance in the cabinet, the fluorine pipes are placed on the air outlet side of the evaporator 6 in the design. Because the evaporator 6 has filtered and dehumidified, the rear space does not have condensation conditions. Through such a layout design, the condensation phenomenon of the pipe wall is suppressed. At the same time, by painting the surface of the pipe, additional protection is provided to prevent condensation and other environmental factors from damaging the copper pipes, reducing the maintenance requirements of the system and avoiding the use of too much insulation material, thereby reducing the wind resistance in the chassis and improving air flow efficiency. At the same time, protective measures such as painting can be used to enhance the corrosion resistance of the pipes and extend their service life.

[0037] Furthermore, in order to ensure the safety of electricity use of the equipment, the compressor 9, plate exchange condenser 8, electronic expansion valve 7, electrical module 15, etc. are installed on the lining 2, and the lining 2 is higher than the base plate 1. The stainless steel water pipes in the utility model adopt a chuck clamp connection method for the convenience of assembly, which is convenient for batch modular production of equipment.

[0038] In addition to the above-mentioned intelligent cooling module, the utility model also provides a liquid-cooled server cabinet. The intelligent cooling module adopts a modular design and is installed inside the liquid-cooled server cabinet with a drip-free quick connector, which can be quickly put on and off the shelf. The water source intelligent cooling module forms a self-circulating precise heat dissipation in the liquid-cooled server cabinet. In solving the heat dissipation problems of modules such as power supplies, hard drives, and network cards, there are basically no heat dissipation dead corners and the cooling efficiency is high. The specific design details of the liquid-cooled server cabinet will not be repeated in this article.

[0039] Working principle: According to the changes in outdoor ambient temperature, the intelligent water source cooling module will automatically select different cooling modes. When the supply temperature is lower than 18°C, the surface cooling heat exchange mode is adopted. When the supply temperature is between 18°C ​​and 23°C, the mixed cooling heat exchange mode is adopted. When the supply temperature is higher than 23°C, it switches to the direct expansion heat exchange mode. When the surface cooling heat exchange mode is adopted, the low-temperature liquid working medium is sent into the surface cooler 3 through the primary side circulation pump, and the high-temperature air is blown across the surface of the surface cooler 3 by the air inlet fan 10 for cooling. The cooled air is sent into the interior of the equipment by the air outlet fan 11. When the direct expansion heat exchange mode is adopted, the refrigerant absorbs the heat in the cabinet and vaporizes to form low-pressure, high-temperature gas in the evaporator 6, which is extracted and compressed by the compressor 9. The high-temperature, high-pressure gas is then sent to the plate exchange condenser 8 to condense into high-pressure liquid, and then reduced in pressure by the electronic expansion valve 7 to become low-pressure vapor-liquid and re-enter the evaporator 6, completing a cycle. The cooled air is sent back to the cabinet by the air outlet fan 11 and continues to circulate. When the mixed cooling and heat exchange mode is adopted, natural cold sources are used for cooling first, and the insufficient part is supplemented by refrigeration by the compressor 9 to achieve efficient and economical temperature control effect.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent water source cooling module, characterized in that: The invention comprises a bottom plate (1) and a lining plate (2), wherein the upper end of the bottom plate (1) is fixedly connected to the upper cover (17) by bolts and nuts, and an air inlet fan (10) and an air outlet fan (11) are provided on the right and left sides of the upper end of the bottom plate (1) located inside the upper cover (17), and the air inlet fan (10) and the air outlet fan (11) are fixedly connected to the bottom plate (1) and the upper cover (17) by a connecting fixing member, and the lining plate (2) is located on the right side of the air outlet fan (11), and the lining plate (2) is fixedly connected to the upper left part of the bottom plate (1) by bolts and nuts, and the lining plate (2) is higher than the bottom plate (1), and the upper end of the bottom plate (1) is located on the right side of the air outlet fan (11). The left side is fixedly connected to the cooler (3) through a transfer fixture. The upper end of the bottom plate (1) is located on the left side of the cooler (3) and is provided with two sets of evaporators (6). The two sets of evaporators (6) are fixed in parallel and locked to the upper end of the bottom plate (1) using fixed structural parts and are kept at a certain distance from the cooler (3). The front and rear parts of the upper end of the lining plate (2) are fixedly connected to the plate exchange condenser (8). The front part of the upper end of the lining plate (2) is located on the left side of the plate exchange condenser (8) on the front side and is fixedly connected to two compressors (9). The rear part of the upper end of the bottom plate (1) is located on the left side of the plate exchange condenser (8) on the rear side and is provided with an electrical module (15).

2. The intelligent water source cooling module according to claim 1, characterized in that: A liquid inlet (12) is provided on one side of the bottom plate (1), one end of the liquid inlet (12) is connected to a water inlet pipe, and the water inlets of the surface cooler (3) and the plate exchange condenser (8) are both connected to the water inlet pipe through connecting pipes.

3. The intelligent water source cooling module according to claim 1, characterized in that: A liquid outlet (13) is provided on one side of the bottom plate (1), one end of the liquid outlet (13) is connected to a water outlet pipe, the water outlets of the surface cooler (3) and the plate exchange condenser (8) are both connected to the water outlet pipe through a connecting pipe, and a pressure control valve (5) is provided on the connecting pipe for communicating with the water outlet of the plate exchange condenser (8).

4. The intelligent water source cooling module according to claim 1, characterized in that: The outlets of the two evaporators (6) are fixedly connected to the input ends of the two compressors (9) through connecting pipes, and the output end of the compressor (9) is fixedly connected to the air inlet of the plate exchange condenser (8) through a pipe.

5. The intelligent water source cooling module according to claim 1, characterized in that: The air outlet of the plate exchange condenser (8) is connected to an electronic expansion valve (7) via a pipeline, and the outlet of the electronic expansion valve (7) is communicated with the air inlet of the evaporator (6) via a connecting pipeline.

6. The intelligent water source cooling module according to claim 1, characterized in that: A liquid discharge port (14) is provided on one side of the bottom plate (1), one end of the liquid discharge port (14) is connected to a liquid discharge pipe, the liquid discharge pipe is connected to a water removal pipe, and an electric two-way valve (4) is provided on the liquid discharge pipe.

7. A liquid-cooled server cabinet, characterized in that: It comprises the intelligent water source cooling module as described in any one of claims 1-6.

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