Drying equipment

Abstract

The invention relates to the technical field of cooling system production, and discloses a drying device which is suitable for drying a cooling pipeline in a liquid cooling whole cabinet and comprises an air supply device and a switching pipeline. The gas supply device is suitable for inputting gas into the cooling pipeline. At least one switching pipeline is arranged, the input end of the switching pipeline is communicated with the air supply device, the output end of the switching pipeline is suitable for being communicated with the first port and the second port of one cooling pipeline, and the switching pipeline can be switched between a forward drying mode and a reverse drying mode; wherein in the forward drying mode, gas supplied by the gas supply device is suitable for entering the cooling pipeline from the first port and flowing out of the second port, and in the reverse drying mode, gas supplied by the gas supply device is suitable for entering the cooling pipeline from the second port and flowing out of the first port.

Description

Technical Field

[0001] The present application relates to the technical field of cooling system production, and in particular to a drying device. Background Art

[0002] As a key device for high-performance computing and data storage, liquid cooling cabinets use liquid cooling technology to effectively dissipate heat and ensure stable operation of servers under high loads. After the production and manufacturing of liquid cooling cabinets, they need to go through a series of rigorous testing processes, including emptying the internal coolant, drying the residual water, and filling with nitrogen. These steps are crucial to prevent bacterial growth, component corrosion, pipe blockage and contamination, and are directly related to the operational reliability and service life of the liquid cooling cabinets.

[0003] In the related art, the draining, drying and nitrogen filling functions of the liquid cooling cabinet are mainly divided into two implementation methods: split type and centralized type. The split method drains and dries the manifold (cooling fluid return manifold) of each liquid cooling server and the whole cabinet separately, and then assembles the server back into the whole cabinet after completion.

[0004] However, since a large number of cold plate liquid cooling servers are integrated inside the whole cabinet, the amount of coolant is large, and the internal structure of the cold plate is complex, containing many small channels, which makes it difficult to drain and dry the coolant. The coolant is easy to remain in the small channels of the cold plate and is difficult to drain completely. Existing testing methods often require a long drainage and drying process to ensure that the internal coolant is drained as much as possible, but even so, the drainage effect is still not thorough enough, which seriously affects the production efficiency of the liquid cooling cabinet. Summary of the invention

[0005] The present application provides a drying device to solve the problem that the drainage drying process is time-consuming and inefficient.

[0006] The present application provides a drying device suitable for drying cooling pipelines in a liquid cooling cabinet, comprising an air supply device and a switching pipeline. The air supply device is suitable for inputting gas into the cooling pipeline. At least one switching pipeline is provided, the input end of the switching pipeline is connected to the air supply device, the output end of the switching pipeline is suitable for communicating with a first port and a second port of a cooling pipeline, and the switching pipeline can be switched between a forward drying mode and a reverse drying mode.

[0007] Wherein, in the forward drying mode, the gas supplied by the gas supply device is suitable for entering the cooling pipeline from the first port and flowing out from the second port, and in the reverse drying mode, the gas supplied by the gas supply device is suitable for entering the cooling pipeline from the second port and flowing out from the first port.

[0008] In this embodiment, the air supply device can pass gas into the cooling pipeline, and the air supply device can be connected to the switching pipeline, and the cooling pipeline in the liquid-cooled whole cabinet can be dried. The output end of the switching pipeline can be connected to the first port and the second port of the cooling pipeline respectively, and the cooling pipeline is dried through two ventilation paths of the forward drying mode and the reverse drying mode, which can greatly reduce the drying time and improve the production efficiency of the liquid-cooled whole cabinet. At the same time, by flexibly switching between the forward drying mode and the reverse drying mode, the residual coolant in the cooling pipeline can be more effectively removed, the drying efficiency and effect can be improved, and the production quality and reliability of the liquid-cooled whole cabinet can be ensured.

[0009] In an optional implementation, the switching pipeline includes a first reversing valve and a second reversing valve.

[0010] The first reversing valve is provided with a first valve port and a second valve port. The first valve port of the first reversing valve is communicated with the output end of the gas supply device, and the second valve port of the first reversing valve is suitable for communicating with the first port.

[0011] The second reversing valve is provided with a third valve port and a fourth valve port. The third valve port of the second reversing valve is communicated with the output end of the gas supply device, and the fourth valve port of the second reversing valve is suitable for communicating with the second port.

[0012] Among them, the first port is connected to a first air outlet, the second port is connected to a second air outlet, in the forward drying mode, the first valve port is connected to the second valve port, the second air outlet is opened and used to discharge gas, and the third valve port is cut off from the fourth valve port; in the reverse drying mode, the third valve port is connected to the fourth valve port, the first air outlet is opened and used to discharge gas, and the first valve port is cut off from the second valve port.

[0013] In this embodiment, by introducing the first reversing valve and the second reversing valve, the forward and reverse flow of the drying gas in the cooling pipeline is realized, further improving the drying efficiency and flexibility. At the same time, by controlling the connection and disconnection of the valve port, the correct flow and discharge of the gas during the drying process is ensured, thereby enhancing the stability and reliability of the equipment.

[0014] In an optional embodiment, it also includes a forward drainage mode and a reverse drainage mode. In the forward drainage mode, the first valve port is connected to the second valve port, the second air outlet is opened and used to discharge liquid, and the third valve port is cut off from the fourth valve port; in the reverse drainage mode, the third valve port is connected to the fourth valve port, the first air outlet is opened and used to discharge liquid, and the first valve port is cut off from the second valve port.

[0015] In this embodiment, a forward drainage mode and a reverse drainage mode are added to the drying equipment, so that the coolant in the cooling pipeline can be more thoroughly discharged before drying. The coolant in the cooling pipeline can be quickly discharged in large quantities, which facilitates the subsequent continuous air supply for drying processing steps, further improving the drying efficiency and the practicality of the equipment.

[0016] In an optional embodiment, the air supply device includes an air source, a first valve body, a filter assembly and a heating assembly.

[0017] The air source is suitable for inputting air into the switching pipeline.

[0018] The first valve body, the filter assembly and the heating assembly are arranged in sequence along the flow direction of the air output by the air source. The first valve body is suitable for controlling the supply of the air source, the filter assembly is suitable for filtering the air supplied by the air source and adjusting the pressure of the air output by the air source, and the heating assembly is suitable for heating the air supplied by the air source.

[0019] In this embodiment, the air supply device is provided with an air source, a first valve body, a filter assembly and a heating assembly, which ensures the cleanliness, pressure stability and temperature suitability of the input gas, thereby improving the drying effect and the operation stability of the equipment. At the same time, the filter assembly and the heating assembly are arranged in sequence, so that the gas is fully processed and regulated before entering the cooling pipeline.

[0020] In an optional embodiment, a first pressure sensor, a first temperature and humidity sensor and a flow meter are arranged between the filter assembly and the heating assembly, the first pressure sensor is suitable for detecting the pressure of the air output by the air source, the first temperature and humidity sensor is suitable for detecting the humidity of the air output by the air source, the flow meter is suitable for detecting the flow rate of the air output by the air source, and a first temperature sensor is arranged at the output end of the air supply device, and the first temperature sensor is suitable for detecting the temperature of the output gas of the heating assembly.

[0021] In this embodiment, by providing the first pressure sensor, the first temperature and humidity sensor and the flow meter, the pressure, humidity and flow rate of the gas outputted by the air source can be monitored in real time, thereby realizing accurate control and monitoring of the drying process. At the same time, the provision of the first temperature sensor can ensure that the temperature of the gas outputted by the heating component meets the drying requirements, thereby improving the drying efficiency and the safety of the equipment.

[0022] In an optional embodiment, the gas supply device further comprises a nitrogen source, a second valve body, a reserved port, a second pressure sensor and an electrical proportional valve. The nitrogen source is suitable for inputting nitrogen into the switching pipeline. The second valve body, the reserved port, the second pressure sensor and the electrical proportional valve can be arranged in sequence along the flow direction of the nitrogen output by the nitrogen source, the second valve body is suitable for controlling the supply of the nitrogen, the reserved port is suitable for verifying the pressure of the nitrogen output by the nitrogen source, the second pressure sensor is suitable for detecting the pressure of the nitrogen output by the nitrogen source, and the electrical proportional valve is suitable for adjusting the pressure of the nitrogen output by the nitrogen source.

[0023] In this embodiment, a nitrogen gas source, a second valve body, a reserved port, a second pressure sensor and an electric proportional valve are added to the gas supply device, so that the device can provide nitrogen as a drying gas when needed, meeting different drying requirements. At the same time, the adjustment function of the electric proportional valve can achieve precise control of the nitrogen output pressure, thereby improving the flexibility and applicability of the device.

[0024] In an optional embodiment, a second temperature and humidity sensor is included, which is arranged at the output ends of the first air outlet and the second air outlet and is suitable for detecting the humidity and temperature of the air output from the cooling pipeline.

[0025] In this embodiment, by arranging a second temperature and humidity sensor at the output ends of the first air outlet and the second air outlet, the humidity and temperature of the air output from the cooling pipeline can be monitored in real time, so as to accurately judge the drying effect, providing strong support for the adjustment and optimization of the equipment.

[0026] In an optional implementation, a third pressure sensor and a fourth pressure sensor are included.

[0027] The third pressure sensor is arranged at the output end of the gas supply device. The third pressure sensor is suitable for detecting the pressure of the gas at the output end of the gas supply device, and the pressure value thereof is set to A.

[0028] The fourth pressure sensor is arranged at the output ends of the first gas outlet and the second gas outlet. The fourth pressure sensor is suitable for detecting the pressure of the gas at the output ends of the first gas outlet and the second gas outlet, and the pressure value thereof is set to B.

[0029] The difference between A and B is set to C.

[0030] In this embodiment, by providing the third pressure sensor and the fourth pressure sensor, the gas pressure at the output end of the gas supply device and the output end of the cooling pipeline can be monitored in real time, and by calculating the difference C, the air tightness can be detected.

[0031] In an optional implementation, a pressure relief valve and a muffler are provided at the output end of the switching pipeline, and the muffler is provided at the output end of the pressure relief valve.

[0032] In this embodiment, a pressure relief valve and a muffler are provided at the output end of the switching pipeline, which can timely release excessive gas pressure during the drying process, reduce noise pollution, and improve the safety and environmental protection of the equipment.

[0033] In an optional embodiment, a concentration detection sensor is arranged outside the gas supply device and the switching pipeline, and is suitable for detecting the nitrogen concentration outside the gas supply device and the switching pipeline.

[0034] In this embodiment, by arranging a concentration detection sensor outside the gas supply device and the switching pipeline, the nitrogen concentration outside the equipment can be monitored in real time, ensuring the safety and accuracy of the equipment during the nitrogen filling process, thereby improving the reliability and safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A structural schematic diagram of a drying device according to an embodiment of the present application;

[0037] Figure 2 This is a schematic diagram of the structure of the switching pipeline in an embodiment of the present application;

[0038] Figure 3 It is a flow chart of the drying detection method of the liquid-cooled whole cabinet according to an embodiment of the present application.

[0039] Description of reference numerals:

[0040] 1. Liquid cooling cabinet; 1001. First port; 1002. Second port;

[0041] 2. Switch pipelines;

[0042] 3. First reversing valve; 3001. First valve port; 3002. Second valve port; 3003. First air outlet;

[0043] 4. Second reversing valve; 4001. Third valve port; 4002. Fourth valve port; 4003. Second air outlet;

[0044] 5. Air source; 6. First valve body; 7. Filter assembly; 8. Heating assembly; 9. First pressure sensor; 10. First temperature and humidity sensor; 11. Flow meter; 12. Nitrogen source; 13. Second valve body; 14. Reserved port; 15. Second pressure sensor; 16. Electric proportional valve; 17. First temperature sensor; 18. Second temperature and humidity sensor; 19. Third pressure sensor; 20. Fourth pressure sensor; 21. Pressure relief valve; 22. Muffler; 23. Concentration detection sensor;

[0045] 24, the third reversing valve; 2401, the fifth valve port; 2402, the sixth valve port; 2403, the seventh valve port;

[0046] 25. Fourth reversing valve; 26. Second temperature sensor; 27. Water tank; 28. Nitrogen concentration sensor; 29. ​​Pressure reducing valve; 30. Fifth reversing valve; 31. Sixth reversing valve; 32. Seventh reversing valve; 33. One-way valve. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0048] In the related art, the liquid-cooled whole cabinet is a liquid-cooled whole cabinet integrated with a cold plate liquid-cooled server. The liquid-cooled whole cabinet consists of a rack, a manifold, and a cold plate liquid-cooled server. The cold plate liquid-cooled server is connected to the manifold through a quick-connect plug for supply and return liquid pipelines, so that the liquid-cooled server can supply and return liquid through the manifold to meet the cooling needs of the liquid-cooled whole cabinet. Manifold is a cooling fluid return manifold, a device used for terminal distribution of cooling liquid, and its position is crucial. It ensures that the cooling fluid flows evenly in the liquid-cooled whole cabinet. The cold plate is usually a closed cavity made of heat-conducting metals such as copper and aluminum, and the cavity is composed of fine flow channels. The heat of the heating device is indirectly transferred to the cooling liquid enclosed in the circulation pipeline, and then the heat is taken away by the cooling liquid. Due to the fine structure of the cold plate cavity, the drainage and drying process takes a long time and the effect is not ideal, resulting in low production efficiency and limiting the output of the liquid-cooled whole cabinet.

[0049] Combine the following Figures 1 to 3 , describing an embodiment of the present application.

[0050] According to an embodiment of the present application, a drying device is provided, such as Figure 1As shown, the cooling pipeline in the drying liquid cooling cabinet 1 includes an air supply device and a switching pipeline 2. The air supply device is suitable for inputting gas into the cooling pipeline. Figure 1 As shown, the switching pipeline 2 is provided with at least one, the input end of the switching pipeline 2 is connected to the air supply device, the output end of the switching pipeline 2 is suitable for connecting with the first port 1001 and the second port 1002 of a cooling pipeline, and the switching pipeline 2 can switch between the forward drying mode and the reverse drying mode.

[0051] In the forward drying mode, the gas supplied by the gas supply device is suitable for entering the cooling pipeline from the first port 1001 and flowing out from the second port 1002. In the reverse drying mode, the gas supplied by the gas supply device is suitable for entering the cooling pipeline from the second port 1002 and flowing out from the first port 1001.

[0052] It can be understood that the gas output by the gas supply device is connected through the input end of the switching pipeline 2, and the output end of the switching pipeline 2 can be respectively connected to the first port 1001 and the second port 1002 of the cooling pipeline, thereby realizing the drying operation of the gas in two directions in the cooling pipeline, specifically, from the first port 1001 to the second port 1002 or from the second port 1002 to the first port 1001. By controlling the output end of the switching pipeline 2 to be respectively connected to the first port 1001 and the second port 1002, the drying efficiency can be improved.

[0053] It should be noted that the cooling pipeline is configured as a liquid-cooled server, and its first port 1001 and second port 1002 are configured as a water inlet manifold and a water return manifold of the liquid-cooled whole cabinet 1 .

[0054] In this embodiment, the air supply device can pass gas into the cooling pipeline, and the air supply device can be connected to the switching pipeline 2, and the cooling pipeline in the liquid-cooled whole cabinet 1 can be dried. The output end of the switching pipeline 2 can be connected to the first port 1001 and the second port 1002 of the cooling pipeline respectively, and the cooling pipeline is dried through two ventilation paths of the forward drying mode and the reverse drying mode, which can greatly reduce the drying time and improve the production efficiency of the liquid-cooled whole cabinet 1. At the same time, by flexibly switching between the forward drying mode and the reverse drying mode, the residual coolant in the cooling pipeline can be more effectively removed, the drying efficiency and effect can be improved, and the production quality and reliability of the liquid-cooled whole cabinet 1 can be ensured.

[0055] In one embodiment, Figure 2 As shown, the switching line 2 includes a first switching valve 3 and a second switching valve 4 .

[0056] The first reversing valve 3 is provided with a first valve port 3001 and a second valve port 3002 . The first valve port 3001 of the first reversing valve 3 is connected to the output end of the gas supply device, and the second valve port 3002 of the first reversing valve 3 is suitable for connecting to the first port 1001 .

[0057] The second reversing valve 4 is provided with a third valve port 4001 and a fourth valve port 4002 . The third valve port 4001 of the second reversing valve 4 is connected to the output end of the gas supply device, and the fourth valve port 4002 of the second reversing valve 4 is suitable for connecting to the second port 1002 .

[0058] The first port 1001 is connected to the first gas outlet 3003, and the second port 1002 is connected to the second gas outlet 4003. In the forward drying mode, the first valve port 3001 is connected to the second valve port 3002, the second gas outlet 4003 is opened and used to discharge gas, the third valve port 4001 is cut off from the fourth valve port 4002, and the output end of the gas supply device is connected to the first valve port 3001. In the reverse drying mode, the third valve port 4001 is connected to the fourth valve port 4002, the first gas outlet 3003 is opened and used to discharge gas, the first valve port 3001 is cut off from the second valve port 3002, and the gas supply device is connected to the third valve port 4001.

[0059] It should be noted that the first reversing valve 3 and the second reversing valve 4 can be set as electric three-way ball valves, the first air outlet 3003 is set as the last valve port of the first reversing valve 3 except the first valve port 3001 and the second valve port 3002, and the second air outlet 4003 is set as the last valve port of the second reversing valve 4 except the third valve port 4001 and the fourth valve port 4002. The first reversing valve 3 is provided with a first station and a second station. In the state of the first station, the first valve port 3001 is connected with the second valve port 3002, and the first air outlet 3003 is cut off. In the state of the second station, the second valve port 3002 is connected with the first air outlet 3003, and the first valve port 3001 is cut off. The second reversing valve 4 is provided with a third station and a fourth station. In the state of the third station, the third valve port 4001 is connected with the second air outlet 4003, and the fourth valve port 4002 is cut off. In the state of the fourth position, the third valve port 4001 is connected to the fourth valve port 4002, and the second air outlet 4003 is cut off. In the state of the forward drying mode, the first reversing valve 3 is in the first position, and the second reversing valve 4 is in the third position. In the state of the reverse drying mode, the first reversing valve 3 is in the second position, and the second reversing valve 4 is in the fourth position.

[0060] In this embodiment, by introducing the first reversing valve 3 and the second reversing valve 4, the forward and reverse flow of the drying gas in the cooling pipeline is realized, further improving the drying efficiency and flexibility. At the same time, by controlling the connection and disconnection of the valve port, the correct flow and discharge of the gas during the drying process is ensured, thereby enhancing the stability and reliability of the equipment.

[0061] In one embodiment, Figure 2 As shown, the third reversing valve 24 is also included, which can be set as an electric three-way ball valve. The third reversing valve 24 includes a fifth valve port 2401, a sixth valve port 2402 and a seventh valve port 2403. The output end of the gas supply device can be communicated with the fifth valve port 2401, the sixth valve port 2402 can be communicated with the first valve port 3001, and the seventh valve port 2403 can be communicated with the third valve port 4001. In the forward drying mode, the gas in the gas supply device passes through the fifth valve port 2401 and the sixth valve port 2402 to the first valve port 3001, wherein the seventh valve port 2403 is in a cut-off state. In the reverse drying mode, the gas in the gas supply device passes through the fifth valve port 2401 and the seventh valve port 2403 to the third valve port 4001, wherein the sixth valve port 2402 is in a cut-off state.

[0062] In this embodiment, the forward drying mode of the liquid-cooled whole cabinet 1 is performed by opening the first reversing valve 3, the second reversing valve 4 and the third reversing valve 24. When in the forward drying mode, the first reversing valve 3, the second reversing valve 4 and the third reversing valve 24 are controlled by a PLC signal to be in a straight-through mode, and the gas enters the water inlet manifold of the liquid-cooled whole cabinet 1 through the third reversing valve 24 and the first reversing valve 3, and the gas returns to the interior of the equipment from the return water manifold through the second reversing valve 4 for drying; when in the reverse drying mode, the first reversing valve 3, the second reversing valve 4 and the third reversing valve 24 are controlled by a PLC signal to be in a bypass mode, and the gas enters the return water manifold of the liquid-cooled whole cabinet 1 through the third reversing valve 24 and the second reversing valve 4, and the gas returns to the interior of the equipment from the water inlet manifold through the bypass of the first reversing valve 3 for drying.

[0063] In one embodiment, Figure 2 As shown, the first port 1001 and the second port 1002 are connected to the switching pipeline 2 via a quick connector.

[0064] In one embodiment, Figure 2As shown, it also includes a forward discharge mode and a reverse discharge mode. In the forward discharge mode, the first valve port 3001 is connected to the second valve port 3002, the second air outlet 4003 is opened and used to discharge liquid, and the third valve port 4001 is cut off from the fourth valve port 4002; in the reverse discharge mode, the third valve port 4001 is connected to the fourth valve port 4002, the first air outlet 3003 is opened and used to discharge liquid, and the first valve port 3001 is cut off from the second valve port 3002.

[0065] It should be noted that the forward drying mode and reverse drying mode in the present application can also be used in the drainage process, and can be set to the forward drainage mode and the reverse drainage mode. The forward drainage mode and the reverse drainage mode can be set before the forward drying mode and the reverse drying mode. Specifically, 0.4-0.6Mpa compressed air is filled into the cooling pipeline through the air supply device to quickly complete the drainage action, and a large amount of coolant existing inside the liquid-cooled whole cabinet 1 is discharged through compressed air, and the whole cabinet is drained in all directions through the two-way drainage mode. After completing the preliminary drainage, the residual coolant in the liquid-cooled whole cabinet 1 is dried again, so that the compressed air temperature reaches about 75°C, and the remaining residual coolant is dried at high temperature, and the coolant remaining in each corner of the liquid-cooled whole cabinet 1 is dried through the two-way drying mode.

[0066] In this embodiment, if Figure 2 As shown, a forward drainage mode and a reverse drainage mode are added to the drying equipment, so that the coolant in the cooling pipeline can be more thoroughly discharged before drying, and a large amount of coolant in the cooling pipeline can be quickly discharged, which is convenient for the subsequent continuous air supply for drying processing steps, and further improves the drying efficiency and the practicality of the equipment.

[0067] In one embodiment, Figure 1 As shown, the air supply device includes an air source 5, a first valve body 6, a filter assembly 7 and a heating assembly 8.

[0068] The air source 5 is suitable for inputting air into the switching pipeline 2 .

[0069] The first valve body 6, the filter assembly 7 and the heating assembly 8 are arranged in sequence along the flow direction of the air output by the air source 5. The first valve body 6 is suitable for controlling the supply of the air source 5. The filter assembly 7 is suitable for filtering the air supplied by the air source 5 and adjusting the pressure of the air output by the air source 5. The heating assembly 8 is suitable for heating the air supplied by the air source 5.

[0070] It can be understood that the air source 5 is suitable for inputting compressed air into the switching pipeline 2, and the first valve body 6 is set as an electric ball valve, which can shut off the air intake of the compressed air. The first valve body 6 can be shut off by PLC signal control when the equipment is not in use, so that the equipment is not supplied with air. The filter component 7 includes a triplet and a filter, which can adjust the gas pressure of the compressed air at the air inlet end and filter the impurities in the air intake to prevent impurities from entering the equipment or even the liquid cooling server to block the pipeline. The heating component 8 is composed of a heating wire, which heats the compressed air passing through. It has a temperature sensor inside. The internal sensor has a high temperature alarm function. When the temperature is too high, the heating component 8 stops working and an alarm is sounded.

[0071] In this embodiment, the air supply device is provided with an air source 5, a first valve body 6, a filter assembly 7 and a heating assembly 8, which ensures the cleanliness, pressure stability and temperature suitability of the input gas, thereby improving the drying effect and the operation stability of the equipment. At the same time, the filter assembly 7 and the heating assembly 8 are arranged in sequence, so that the gas is fully processed and regulated before entering the cooling pipeline.

[0072] In one embodiment, Figure 1 As shown, a first pressure sensor 9, a first temperature and humidity sensor 10 and a flow meter 11 are arranged between the filter assembly 7 and the heating assembly 8. The first pressure sensor 9 is suitable for detecting the pressure of the air output by the air source 5. The first temperature and humidity sensor 10 is suitable for detecting the humidity of the air output by the air source 5. The flow meter 11 is suitable for detecting the flow rate of the air output by the air source 5. A first temperature sensor 17 is arranged at the output end of the air supply device. The first temperature sensor 17 is suitable for detecting the temperature of the output gas of the heating assembly 8.

[0073] It is understandable that the first pressure sensor 9 detects the pressure of the compressed air at the air inlet end. When the gas pressure is too low or too high, an alarm is triggered and the equipment is stopped to prevent damage to the liquid cooling server caused by excessive pressure. Prevent the temperature of the equipment heating component 8 from being too high due to too low pressure, and the heating component 8 from being damaged due to the inability to adjust the temperature. The first temperature and humidity sensor 10 detects the temperature and humidity of the gas at the air inlet end to prevent the situation where the humidity at the air inlet end is too high and the drying cannot be completed. The flow meter 11 can detect the flow rate of the intake gas. The heating component 8 is allowed to heat only when the flow rate reaches a certain value to prevent the heating component 8 from being damaged due to excessive temperature rise caused by insufficient flow. A first temperature sensor 17 is also provided, which is arranged between the third reversing valve 24 and the third pressure sensor 19. The first temperature sensor 17 can perform secondary temperature detection on the heating component 8 to prevent the risk of continued operation after high temperature caused by failure of the internal temperature sensor of the heating component 8.

[0074] In this embodiment, by providing the first pressure sensor 9, the first temperature and humidity sensor 10 and the flow meter 11, the pressure, humidity and flow rate of the gas output from the air source 5 can be monitored in real time, thereby achieving accurate control and monitoring of the drying process. At the same time, the provision of the first temperature sensor 17 can ensure that the temperature of the gas output from the heating component 8 meets the drying requirements, thereby improving the drying efficiency and the safety of the equipment.

[0075] In one embodiment, Figure 1 As shown, the gas supply device also includes a nitrogen source 12, a second valve body 13, a reserved port 14, a second pressure sensor 15 and an electric proportional valve 16. The nitrogen source 12 is suitable for inputting nitrogen into the switching pipeline 2. The second valve body 13, the reserved port 14, the second pressure sensor 15 and the electric proportional valve 16 can be arranged in sequence along the flow direction of the nitrogen output by the nitrogen source 12. The second valve body 13 is suitable for controlling the supply of nitrogen, the reserved port 14 is suitable for checking the pressure of the nitrogen output by the nitrogen source 12, the second pressure sensor 15 is suitable for detecting the pressure of the nitrogen output by the nitrogen source 12, and the electric proportional valve 16 is suitable for adjusting the pressure of the nitrogen output by the nitrogen source 12.

[0076] It should be noted that the second valve body 13 can shut off the nitrogen gas source 12 when the equipment is not nitrogen-filled, and open it for nitrogen-filling when the equipment is nitrogen-filled. The reserved port 14 can perform pressure and other precision calibrations to ensure that the nitrogen-filling pressure can be stably and accurately measured. The second pressure sensor 15 can detect the pressure of the nitrogen inlet source and the current pressure value. When the pressure is too high or too low to meet the use, an alarm is issued and the equipment is stopped. The electrical proportional valve 16 adjusts the current nitrogen pressure during the nitrogen-filling operation so that the nitrogen pressure can reach the set pressure value.

[0077] It can be understood that the gas supply device can fill nitrogen into the liquid-cooled whole cabinet 1 to perform nitrogen protection on the liquid-cooled whole cabinet 1. The air inside the liquid-cooled whole cabinet 1 is discharged by filling nitrogen of a specified pressure, so that the interior of the whole cabinet is filled with nitrogen. When the nitrogen reaches the set pressure, the connection is disconnected, so that the whole cabinet is protected by nitrogen to prevent bacteria from growing.

[0078] In this embodiment, a nitrogen source 12, a second valve body 13, a reserved port 14, a second pressure sensor 15 and an electric proportional valve 16 are added to the gas supply device, so that the device can provide nitrogen as a drying gas when needed, meeting different drying requirements. At the same time, the regulating function of the electric proportional valve 16 can achieve precise control of the nitrogen output pressure, thereby improving the flexibility and applicability of the device.

[0079] In one embodiment, Figure 1 As shown, a water tank 27 is also included, which is arranged at the output ends of the first air outlet 3003 and the second air outlet 4003 .

[0080] In this embodiment, during the draining and drying operation, the coolant is discharged into the water tank 27 for storage by compressed air. The bottom of the water tank 27 is provided with a drain pump and a manual drain valve, which can be selected for use according to the use environment.

[0081] In one embodiment, Figure 1 As shown, a nitrogen concentration sensor 28 is also included, which is arranged at the output ends of the first gas outlet 3003 and the second gas outlet 4003 .

[0082] In this embodiment, when the nitrogen filling operation is performed, the nitrogen concentration sensor 28 can detect whether the nitrogen concentration flowing through the pipeline meets the requirement. Only when the requirement is met can the nitrogen filling operation be stabilized.

[0083] In one embodiment, Figure 1 As shown, it includes a second temperature and humidity sensor 18, which is arranged at the output ends of the first air outlet 3003 and the second air outlet 4003, and is suitable for detecting the humidity and temperature of the air output from the cooling pipeline.

[0084] It can be understood that the second temperature and humidity sensor 18 is used to detect the current temperature and humidity of the gas to determine the drying effect, and the current humidity will be uploaded to the system for storage in real time to facilitate subsequent product quality traceability.

[0085] In this embodiment, by setting a second temperature and humidity sensor 18 at the output ends of the first air outlet 3003 and the second air outlet 4003, the humidity and temperature of the air output from the cooling pipeline can be monitored in real time, so as to accurately judge the drying effect and provide strong support for the adjustment and optimization of the equipment.

[0086] In one embodiment, Figure 1 As shown, the fifth reversing valve 30 is also included, which is arranged between the fourth pressure sensor 20 and the water tank 27. The fifth reversing valve 30 is set as an electric three-way ball valve, and the drainage and drying operation or the nitrogen filling operation can be performed through the fifth reversing valve 30. When the drainage and drying operation is performed, the flow direction of the fifth reversing valve 30 is controlled to the left by the PLC signal; when the nitrogen filling operation is performed, the flow direction of the electric three-way ball valve is controlled to the right by the PLC signal.

[0087] In one embodiment, Figure 1 As shown, it also includes a pressure reducing valve 29, which is arranged between the fifth reversing valve 30 and the nitrogen concentration sensor 28.

[0088] In one embodiment, Figure 1As shown, the sixth reversing valve 31 is also included, which is set as an electric three-way ball valve, which is set between the fourth pressure sensor 20 and the fifth reversing valve 30, and is connected in parallel with the second temperature and humidity sensor 18. When the direct mode is in operation, the liquid is drained and the nitrogen is filled. When the bypass mode is in operation, the gas passes through the second temperature and humidity sensor 18. At this time, the gas humidity during the drying process can be detected through the bypass mode.

[0089] In one embodiment, Figure 1 As shown, a one-way valve 33 is also included, which is arranged between the fifth reversing valve 30 and the second temperature and humidity sensor 18 to prevent liquid or gas from flowing back.

[0090] In one embodiment, Figure 1 As shown, it also includes a seventh reversing valve 32, which is set as an electric three-way ball valve and is connected to another switching pipeline 2. Its function is the same as the fourth reversing valve 25, and it can be switched during the drainage and drying operation and the nitrogen filling operation.

[0091] In one embodiment, Figure 2 As shown, a third pressure sensor 19 and a fourth pressure sensor 20 are included.

[0092] The third pressure sensor 19 is arranged at the output end of the gas supply device. The third pressure sensor 19 is suitable for detecting the pressure of the gas at the output end of the gas supply device. The pressure value thereof is set to A.

[0093] The fourth pressure sensor 20 is disposed at the output ends of the first gas outlet 3003 and the second gas outlet 4003 . The fourth pressure sensor 20 is suitable for detecting the pressure of the gas at the output ends of the first gas outlet 3003 and the second gas outlet 4003 . The pressure value thereof is set to B.

[0094] The difference between A and B is set to C.

[0095] It is understandable that the third pressure sensor 19 can detect the pressure of the current compressed air and the nitrogen pressure, and the pressure is adjusted by the third pressure sensor 19 during the nitrogen filling operation. The fourth pressure sensor 20 detects the pressure of the compressed air and nitrogen after passing through the product, and can compare the difference with the third pressure sensor 19 to see if there is a gas leak.

[0096] In this embodiment, by providing the third pressure sensor 19 and the fourth pressure sensor 20, the gas pressure at the output end of the gas supply device and the output end of the cooling pipeline can be monitored in real time, and by calculating the difference C, the air tightness can be detected.

[0097] In one embodiment, Figure 1As shown, the fourth reversing valve 25 is also included. The fourth reversing valve 25 includes an eighth valve port, a ninth valve port and a tenth valve port. The eighth valve port is connected to the fifth valve port 2401, the ninth valve port is connected to the heating component 8, and the tenth valve port is connected to the electrical proportional valve 16. The fourth reversing valve 25 is provided with a fifth station and a sixth station. In the state of the fifth station, the eighth valve port is connected to the ninth valve port, and the tenth valve port is cut off. At this time, the forward and reverse drying mode and the forward and reverse liquid discharge mode can be performed, thereby realizing liquid discharge drying. In the state of the sixth station, the eighth valve port is connected to the tenth valve port, and the ninth valve port is cut off. At this time, the nitrogen filling operation can be performed.

[0098] In this embodiment, the fourth reversing valve 25 can discharge the internal gas through the three-way ball valve when the equipment is not in use or undergoing maintenance, and can also switch between drain drying and nitrogen filling.

[0099] In one embodiment, Figure 1 As shown, a second temperature sensor 26 is also provided to detect the temperature of the current compressed air. During the drying operation, the heating temperature of the heating component 8 is adjusted by the second temperature sensor 26, and the second temperature sensor 26 is used to determine whether the heating temperature reaches the set target value.

[0100] In one embodiment, Figure 1 As shown, it includes a pressure relief valve 21 and a muffler 22 , which are arranged at the output end of the switching pipeline 2 , and the muffler 22 is arranged at the output end of the pressure relief valve 21 .

[0101] In this embodiment, a pressure relief valve 21 and a muffler 22 are provided at the output end of the switching pipeline 2, which can timely release excessive gas pressure during the drying process, reduce noise pollution, and improve the safety and environmental protection of the equipment.

[0102] In one embodiment, Figure 1 As shown, the concentration detection sensor 23 is arranged outside the gas supply device and the switching pipeline 2, and is suitable for detecting the nitrogen concentration outside the gas supply device and the switching pipeline 2.

[0103] It is understandable that the concentration detection sensor 23 can detect nitrogen outside the equipment. When it is detected that the nitrogen concentration exceeds the standard, the equipment alarm is prompted, indicating that the current equipment nitrogen is leaking and cutting off the nitrogen supply to prevent surrounding personnel from suffocating and other safety risks.

[0104] In this embodiment, by setting a concentration detection sensor 23 outside the gas supply device and the switching pipeline 2, the nitrogen concentration outside the equipment can be monitored in real time, ensuring the safety and accuracy of the equipment during the nitrogen filling process, thereby improving the reliability and safety of the equipment.

[0105] like Figure 3As shown, the present application also provides a drying detection method for a liquid cooling whole cabinet, comprising the following steps:

[0106] Connect the drying equipment to the liquid cooling cabinet and obtain parameter information of the liquid cooling cabinet.

[0107] Scan the SN (Serial Number) of the liquid cooling cabinet 1, and automatically scan it to the host computer system through the barcode scanner. The host computer system sends the SN to the MES system (Manufacturing Execution System). The MES system returns the corresponding data to determine whether the current liquid cooling server meets this test. If it meets the test, it can pass the station. If it does not meet the test, it will prompt that it cannot pass the station. The corresponding data returned by the MES system includes drainage time, drying time, drying temperature, humidity target value and nitrogen pressure target value.

[0108] Start the forward discharge mode and the reverse discharge mode in sequence, and stop the discharge after reaching the target time parameter.

[0109] After passing the station, the first valve body 6 can be opened to ventilate the compressed air. At the same time, the fourth reversing valve 25 is controlled by the PLC signal to rotate to the drainage and drying branch. The first reversing valve 3, the second reversing valve 4 and the third reversing valve 24 rotate to the straight-through mode. At this time, the gas enters through the water inlet manifold of the liquid cooling cabinet 1 and is discharged from the water outlet manifold. The sixth reversing valve 31 rotates to the straight-through mode, and the fifth reversing valve 30 rotates to the side of the water tank 27. The flow meter 11 detects whether the current flow meets the drainage requirements. If the flow does not meet the requirements, the equipment stops and an alarm is issued. When the flow meets the requirements, the forward drainage timing is started. When the time reaches the set time, the first reversing valve 3, the second reversing valve 4 and the third reversing valve 24 are rotated to the bypass mode. At this time, the gas enters from the drainage manifold of the liquid cooling cabinet 1 and is discharged from the water inlet manifold to the inside of the equipment. When the electric three-way ball valve is opened in place, the drainage timing is started. When the drainage timing ends, the drainage operation is completed.

[0110] The forward drying mode and the reverse drying mode are turned on cyclically to detect the humidity parameter. When the humidity parameter reaches the target parameter, the drying is stopped.

[0111] After the drainage operation is completed and the flow rate is satisfied, the heating component 8 is started for heating. Through the PID control technology, the monitoring temperature of the second temperature sensor 26 is kept within the set stable range. If the temperature does not reach the set temperature, the heating component continues to heat. When the temperature reaches the set temperature, the forward heating thermometer is started. When the forward thermometer is completed, the reverse heating timing is started. When the reverse heating timing is completed, the sixth reversing valve 31 is rotated to the bypass side for humidity detection. When the humidity reaches the target value, the drying operation is completed. When the humidity does not reach the set target value, it prompts whether to perform the drying operation again. The second drying operation repeats the forward drying and reverse drying operations. After drying, the humidity is detected until the drying humidity reaches the set target value.

[0112] The liquid cooling cabinet 1 is charged with nitrogen. When the nitrogen pressure reaches the target parameter, the nitrogen charging is stopped, and the liquid cooling cabinet 1 and the drying equipment are disconnected.

[0113] After the drying operation is completed, the nitrogen filling operation is carried out. At this time, the first valve body 6 is closed, and the pressure inside the equipment is relieved through the pressure relief valve 21. After the third pressure sensor 19 detects that the pressure is 0, the fourth reversing valve 25 is rotated to the nitrogen filling side, the first reversing valve 3, the second reversing valve 4 and the third reversing valve 24 are rotated to the through side, the sixth reversing valve 31 is rotated to the through side, and the fifth reversing valve 30 is rotated to the nitrogen concentration detection side. After each electric three-way ball valve is rotated into place, the second valve body 13 is opened for nitrogen filling. The nitrogen concentration sensor 28 detects the nitrogen concentration value in real time. When the nitrogen concentration reaches the set target value, the electric proportional valve 16 adjusts the pressure. When the nitrogen pressure reaches the set target value, the second reversing valve 4 is closed to stabilize the internal pressure of the liquid cooling cabinet 1. After the pressure stabilization is completed, if the pressure is still within the set target value range, it indicates that the nitrogen filling is successful and is uploaded to MES. When the pressure is less than or greater than the target range after the pressure stabilization is completed, it indicates that the nitrogen filling fails. The current operation enters the maintenance section to check whether there is a gas leak.

[0114] In one embodiment, Figure 1 As shown, the present application also has a self-detection function for equipment leakage and liquid cooling cabinet 1 leakage. This function compares the difference between the second pressure sensor 15 and the third pressure sensor 19. First, when ensuring that the drying equipment does not leak, the equipment is filled with nitrogen of different pressures to measure the difference D between the second pressure sensor 15 and the third pressure sensor 19. This difference is saved in the host computer, and different pressures correspond to different pressure differences. When the subsequent equipment is used, when the absolute value of the pressure difference is less than the current pressure difference D, it is considered that the equipment is abnormal, and there is a leakage in the internal pipeline of the equipment, prompting the staff to perform maintenance.

[0115] The leakage of the liquid-cooled whole cabinet 1 is detected by the difference between the third pressure sensor 19 and the fourth pressure sensor 20. First, a liquid-cooled whole cabinet 1 without leakage is used to collect pressure. The difference C between the third pressure sensor 19 and the fourth pressure sensor 20 is detected under different nitrogen filling pressures. The difference is saved in the host computer. Different pressures correspond to different pressure differences. When the liquid-cooled whole cabinet 1 is subsequently filled with nitrogen, when the absolute value of the pressure difference is less than the current pressure difference C, it is considered that the liquid-cooled whole cabinet 1 is abnormal, and there is a leakage in the internal pipeline of the liquid-cooled whole cabinet 1, prompting the staff to perform maintenance.

[0116] When all operations are completed or the maintenance mode is entered, all electric ball valves rotate to the closed state, and the electric pressure relief valve 21 releases pressure to ensure that there is no pressure inside the equipment.

[0117] The present application adds a two-way drainage and drying function, which can drain and dry all corners of the entire cabinet to avoid residual coolant inside the entire cabinet, and quickly drain according to the test method. Multi-frequency drainage and drying can ensure that the residual coolant is discharged again when it flows back, which greatly improves work efficiency and increases the shipment capacity of the entire cabinet. Through the equipment leakage self-detection function, equipment leakage and liquid-cooled cabinet 1 leakage can be quickly located, thereby improving product testing accuracy.

[0118] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A drying device, suitable for drying cooling pipes in a liquid cooling cabinet (1), characterized in that: include: A gas supply device, suitable for inputting gas into the cooling pipeline; A switching pipeline (2) is provided with at least one, the input end of the switching pipeline (2) is connected to the air supply device, the output end of the switching pipeline (2) is suitable for being connected to a first port (1001) and a second port (1002) of a cooling pipeline, and the switching pipeline (2) can be switched between a forward drying mode and a reverse drying mode; Wherein, in the forward drying mode, the gas supplied by the gas supply device is suitable for entering the cooling pipeline from the first port (1001) and flowing out from the second port (1002), and in the reverse drying mode, the gas supplied by the gas supply device is suitable for entering the cooling pipeline from the second port (1002) and flowing out from the first port (1001).

2. The drying device according to claim 1, characterized in that: The switching pipeline (2) comprises: A first reversing valve (3), wherein a first valve port (3001) is connected to an output end of the gas supply device, and a second valve port (3002) of the first reversing valve (3) is suitable for connecting to the first port (1001); A second reversing valve (4), wherein the third valve port (4001) is connected to the output end of the gas supply device, and the fourth valve port (4002) of the second reversing valve (4) is suitable for connecting to the second port (1002); The first port (1001) is connected to a first air outlet (3003), and the second port (1002) is connected to a second air outlet (4003). In the forward drying mode, the first valve port (3001) is connected to the second valve port (3002), the second air outlet (4003) is opened and used to discharge gas, and the third valve port (4001) is disconnected from the fourth valve port (4002); in the reverse drying mode, the third valve port (4001) is connected to the fourth valve port (4002), the first air outlet (3003) is opened and used to discharge gas, and the first valve port (3001) is disconnected from the second valve port (3002).

3. The drying device according to claim 2, characterized in that: It also includes a forward liquid discharge mode and a reverse liquid discharge mode. In the forward liquid discharge mode, the first valve port (3001) is connected to the second valve port (3002), the second air outlet (4003) is opened and used to discharge liquid, and the third valve port (4001) is disconnected from the fourth valve port (4002); in the reverse liquid discharge mode, the third valve port (4001) is connected to the fourth valve port (4002), the first air outlet (3003) is opened and used to discharge liquid, and the first valve port (3001) is disconnected from the second valve port (3002).

4. The drying device according to claim 3, characterized in that: The gas supply device comprises: An air source (5) adapted to input air into the switching pipeline (2); A first valve body (6), a filter assembly (7) and a heating assembly (8) are arranged in sequence along the flow direction of the air output by the air source (5); the first valve body (6) is suitable for controlling the supply of the air source (5); the filter assembly (7) is suitable for filtering the air supplied by the air source (5) and adjusting the pressure of the air output by the air source (5); and the heating assembly (8) is suitable for heating the air supplied by the air source (5).

5. The drying device according to claim 4, characterized in that: A first pressure sensor (9), a first temperature and humidity sensor (10) and a flow meter (11) are arranged between the filter assembly (7) and the heating assembly (8); the first pressure sensor (9) is suitable for detecting the pressure of the air output by the air source (5); the first temperature and humidity sensor (10) is suitable for detecting the humidity of the air output by the air source (5); the flow meter (11) is suitable for detecting the flow rate of the air output by the air source (5); and a first temperature sensor (17) is arranged at the output end of the air supply device; the first temperature sensor (17) is suitable for detecting the temperature of the output gas obtained by the heating assembly (8).

6. The drying device according to claim 3, characterized in that: The air supply device also includes: A nitrogen gas source (12) adapted to input nitrogen gas into the switching pipeline (2); The second valve body (13), the reserved port (14), the second pressure sensor (15) and the electric proportional valve (16) are arranged in sequence along the flow direction of the nitrogen output by the nitrogen source (12); the second valve body (13) is suitable for controlling the supply of the nitrogen; the reserved port (14) is suitable for verifying the pressure of the nitrogen output by the nitrogen source (12); the second pressure sensor (15) is suitable for detecting the pressure of the nitrogen output by the nitrogen source (12); and the electric proportional valve (16) is suitable for adjusting the pressure of the nitrogen output by the nitrogen source (12).

7. The drying device according to claim 3, characterized in that: include: The second temperature and humidity sensor (18) is arranged at the output ends of the first air outlet (3003) and the second air outlet (4003), and is suitable for detecting the humidity and temperature of the air output from the cooling pipeline.

8. The drying device according to claim 3, characterized in that: include: A third pressure sensor (19) is arranged at the output end of the gas supply device, and the third pressure sensor (19) is suitable for detecting the pressure of the gas at the output end of the gas supply device, and its pressure value is set to A; a fourth pressure sensor (20), arranged at the output ends of the first gas outlet (3003) and the second gas outlet (4003), the fourth pressure sensor (20) being adapted to detect the pressure of the gas at the output ends of the first gas outlet (3003) and the second gas outlet (4003), the pressure value of which being set to B; The difference between A and B is set to C.

9. The drying device according to claim 1, characterized in that: include: The pressure relief valve (21) and the muffler (22) are arranged at the output end of the switching pipeline (2), and the muffler (22) is arranged at the output end of the pressure relief valve (21).

10. The drying device according to claim 1, characterized in that: include: A concentration detection sensor (23) is arranged outside the gas supply device and the switching pipeline (2) and is suitable for detecting the nitrogen concentration outside the gas supply device and the switching pipeline (2).

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