Novel plate type liquid cooling secondary side water ultrafiltration mechanism
By introducing ultrafiltration components and a PLC control system into the liquid cooling system, the problems of decreased heat exchange efficiency and pipe blockage caused by excessive microorganisms were solved, realizing automated microbial filtration and online monitoring, and ensuring the stability of heat dissipation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-13
AI Technical Summary
In existing liquid cooling systems, when deionized water is used as the heat exchange medium on the secondary side, microorganisms are prone to exceed the standard, leading to a decrease in heat exchange efficiency and pipe blockage, which is difficult to monitor and handle online.
A novel plate-type liquid-cooled secondary side water ultrafiltration mechanism is designed, comprising an ultrafiltration component, a PLC controller, a pressure tank, and monitoring components. Through automatic adjustment by the ultrafiltration booster pump and the PLC controller, it achieves filtration of microorganisms and online monitoring, preventing pipeline blockage.
It effectively prevents microorganisms from clogging the heat exchange channels, ensures stable heat dissipation performance, and enables automated monitoring and treatment, avoiding a decrease in heat dissipation efficiency due to excessive microorganisms.
Smart Images

Figure CN223988330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plate liquid cooling technology, and in particular to a novel plate liquid cooling secondary side water ultrafiltration mechanism. Background Technology
[0002] As server rack density increases, liquid cooling has become the preferred cooling method for high-power-density data centers. Cold plate liquid cooling typically uses deionized water, ethylene glycol solution, propylene glycol solution, fluorinated liquid, etc. as heat exchange carriers on the secondary side. Deionized water has become one of the most commonly used heat exchange fluids on the secondary side due to its advantages such as high specific heat capacity, convenient production, and low cost.
[0003] The existing secondary side is a closed system, and the circulating water temperature is usually selected at 40-45°C. This temperature range is at the higher end of the suitable temperature curve for the logarithmic growth phase of microorganisms. It often happens that after the water is replaced and the system is run under load for one or two months, the microbial level exceeds 1000 CFU / ml, which leads to a decrease in heat exchange efficiency and is also prone to clogging the heat exchange pipes in the server. Since microbial indicators are difficult to monitor online in real time and difficult to process online, the microbial control in the secondary side water quality has become a pain point in the operation of the system.
[0004] To address the aforementioned issues, a novel plate-type liquid-cooled secondary side water ultrafiltration mechanism is proposed. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a new plate-type liquid-cooled secondary side water ultrafiltration mechanism, which solves the problem that excessive microorganisms in the secondary side using deionized water as a heat exchange carrier can easily clog the server heat exchange channel.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a novel plate-type liquid-cooled secondary side water ultrafiltration mechanism, including a water-cooling component, an ultrafiltration component installed on one side of the water-cooling component, the water-cooling component including a plate heat exchanger, an inlet pipe A provided on one side of the plate heat exchanger, a drain pipe A provided below the inlet pipe A, an inlet pipe B provided on the other side of the plate heat exchanger, a drain pipe B provided above the inlet pipe B, both drain pipe A and drain pipe B are installed on the plate heat exchanger, the ultrafiltration component includes a control box, the control box is connected to the drain pipe B, an ultrafiltration booster pump is installed inside the control box, the ultrafiltration booster pump is matched with the drain pipe B, a PLC controller is installed inside the control box, an ultrafiltration element is installed at the output end of the control box, a pressure tank is provided next to the control box, the output end of the pressure tank is matched with the inlet pipe B, and a monitoring device is installed at the upper end of the pressure tank.
[0007] Preferably, a bypass pipe is installed on the control box, one end of which is connected to the input terminal of the control box, and the other end of which is connected to the output terminal of the control box. A manual valve and an electrically controlled valve are installed on the bypass pipe, and the PLC controller is electrically connected to the electrically controlled valve.
[0008] This is used to control the opening or closing of electrically controlled valves via a PLC controller, thereby achieving automatic adjustment.
[0009] Preferably, the ultrafiltration element includes an ultrafiltration chamber, an ultrafiltration membrane is disposed inside the ultrafiltration chamber, and an ultrafiltration chamber cover is installed at the top of the ultrafiltration chamber;
[0010] It is used to filter microorganisms in the heat exchange medium to prevent excessive microorganisms from affecting heat dissipation and potentially causing blockage of the plate heat exchanger.
[0011] Preferably, a sampling device is installed on one side of the pressure tank. The sampling device includes a sampling tube. The pressure tank is connected to the sampling tube, and a valve is installed on the sampling tube.
[0012] It is used to conveniently sample the carrier in the pressure vessel, thereby accurately controlling the condition of the carrier in the pressure vessel.
[0013] Preferably, the monitoring device includes a conductivity monitor, a dissolved oxygen monitor is provided on one side of the conductivity monitor, a pH monitor is provided on one side of the dissolved oxygen monitor, and a PLC controller is electrically connected to the conductivity monitor, the dissolved oxygen monitor, and the pH monitor.
[0014] Used to monitor the status of the carrier in the pressure vessel, thereby ensuring the smooth progress of heat dissipation operations.
[0015] Preferably, a connecting pipe is installed between the output end of the control box and the input end of the pressure tank, and a water pump is installed on the connecting pipe;
[0016] Used to balance the pressure between the control box and the pressure tank, ensuring stable heat dissipation operations.
[0017] Compared with the prior art, the beneficial effects of this utility model include: when performing heat dissipation operation, one set of circulating water pipes, inlet pipe A and outlet pipe A are connected to form a primary side, and another set of circulating water pipes, inlet pipe B and outlet pipe B are connected to form a secondary side. Then, an ultrafiltration device is installed on the pipes of the secondary side to filter microorganisms in the heat dissipation carrier, thereby ensuring that the entire device will not be blocked by microorganisms, which would affect the final heat dissipation performance. Attached Figure Description
[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts.
[0019] in:
[0020] Figure 1The schematic diagram shows the overall structure of the device according to one embodiment of the present invention;
[0021] Figure 2 The schematic diagram shows the overall structure of an ultrafiltration assembly according to one embodiment of the present invention.
[0022] Figure 3 The schematic diagram shows the overall structure of the control box when opened according to one embodiment of the present invention;
[0023] Figure 4 The schematic diagram shows the overall structure of the pressure vessel according to one embodiment of the present invention;
[0024] Figure 5 The schematic diagram shows the overall structure of an ultrafiltration device according to one embodiment of the present invention.
[0025] Numbered in the diagram: 1. Water-cooled assembly; 11. Plate heat exchanger; 12. Inlet pipe A; 13. Drain pipe A; 14. Inlet pipe B; 15. Drain pipe B; 2. Ultrafiltration assembly; 21. Control box; 211. Bypass pipe; 212. Manual valve; 213. Electrically controlled valve; 22. Ultrafiltration booster pump; 23. PLC controller; 24. Ultrafiltration element; 241. Ultrafiltration chamber; 242. Ultrafiltration membrane; 243. Ultrafiltration chamber cover; 25. Pressure tank; 26. Sampling element; 261. Sampling tube; 262. Valve; 27. Monitoring element; 271. Conductivity monitor; 272. Dissolved oxygen monitor; 273. pH monitor; 28. Connecting pipe; 281. Water pump. Detailed Implementation
[0026] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0027] According to the embodiments of this utility model, combined with Figures 1 to 5The diagram illustrates a novel plate-type liquid-cooled secondary-side water ultrafiltration mechanism, comprising: a water-cooling assembly 1, an ultrafiltration assembly 2 mounted on one side of the water-cooling assembly 1, the water-cooling assembly 1 including a plate heat exchanger 11, an inlet pipe A12 disposed on one side of the plate heat exchanger 11, a drain pipe A13 disposed below the inlet pipe A12, an inlet pipe B14 disposed on the other side of the plate heat exchanger 11, and a drain pipe B15 disposed above the inlet pipe B14; both the drain pipe A13 and the drain pipe B15 are mounted on the plate heat exchanger. On the device 11, the ultrafiltration assembly 2 includes a control box 21, which is connected to the drain pipe B15. An ultrafiltration booster pump 22 is installed inside the control box 21 and is matched with the drain pipe B15. A PLC controller 23 is installed inside the control box 21. An ultrafiltration element 24 is installed at the output end of the control box 21. A pressure tank 25 is set next to the control box 21. The output end of the pressure tank 25 is matched with the water inlet pipe B14. A monitoring element 27 is installed on the upper end of the pressure tank 25.
[0028] The primary-side heat dissipation carrier pipes, inlet pipe A12, and drain pipe A13 are connected together to form a loop, transporting the carrier to the plate heat exchanger 11 for cooling. The secondary-side heat dissipation carrier is transported to the plate heat exchanger 11 via inlet pipe B14 and drain pipe B15 for cooling. Inlet pipes A12 and A13, as well as inlet pipes B14 and B15, are connected end-to-end to prevent contact between the heat dissipation carrier and the carrier in the plate heat exchanger 11. The secondary-side heat dissipation carrier is first transported to a pressure tank 25, and then from the pressure tank 25 to the plate heat exchanger 11. The cooled carrier is then transported to the control box 21. After passing through the ultrafiltration booster pump 22, the cooled carrier is transported to the designated location. During the transport process, the carrier is filtered by the ultrafiltration element 24. After absorbing heat, the carrier is transported to the pressure tank 25 to complete the cycle. Pressure gauges and other auxiliary devices are installed on the transport pipeline to ensure that the entire heat dissipation operation can proceed normally. During this process, the corresponding program can be written on the PLC controller 23 to control the entire device to work normally, realizing automated work and freeing up manual labor.
[0029] According to the embodiments of this utility model, in combination Figure 3 and Figure 5The diagram shows a novel plate-type liquid-cooled secondary side water ultrafiltration mechanism. A bypass pipe 211 is installed on the control box 21. One end of the bypass pipe 211 is connected to the input end of the control box 21, and the other end of the bypass pipe 211 is connected to the output end of the control box 21. A manual valve 212 and an electric control valve 213 are installed on the bypass pipe 211. A PLC controller 23 is electrically connected to the electric control valve 213. The ultrafiltration element 24 includes an ultrafiltration chamber 241. An ultrafiltration membrane 242 is disposed inside the ultrafiltration chamber 241. An ultrafiltration chamber cover 243 is installed on the upper end of the ultrafiltration chamber 241. A connecting pipe 28 is installed between the output end of the control box 21 and the input end of the pressure tank 25. A water pump 281 is installed on the water pump connecting pipe 28.
[0030] After the ultrafiltration mode is activated, the PLC controller 23 sends a command to close the solenoid valve 213, thereby cutting off the bypass pipe 211. The water pump 281 then operates, ensuring the hydraulic balance in the pipeline. Under the operation of the ultrafiltration membrane 242, microorganisms in the carrier are filtered out, preventing microorganisms from clogging the pipeline and affecting the normal heat dissipation operation.
[0031] According to the embodiments of this utility model, in combination Figure 3 and Figure 4 The diagram shows a novel plate-type liquid-cooled secondary-side water ultrafiltration mechanism. A sampling element 26 is installed on one side of a pressure tank 25. The sampling element 26 includes a sampling tube 261. The pressure tank 25 is connected to the sampling tube 261. A valve 262 is installed on the sampling tube 261. A monitoring element 27 includes a conductivity monitor 271. A dissolved oxygen monitor 272 is installed on one side of the conductivity monitor 271. A pH monitor 273 is installed on one side of the dissolved oxygen monitor 272. A PLC controller 23 is electrically connected to the conductivity monitor 271, the dissolved oxygen monitor 272, and the pH monitor 273.
[0032] During daily use, valve 262 can be manually turned to allow the carrier in pressure tank 25 to flow out from sampling tube 261 to complete the sampling operation. In addition, during daily operation, conductivity monitor 271, dissolved oxygen monitor 272 and pH monitor 273 monitor the carrier in pressure tank 25 in real time. When the monitored value exceeds the set value, PLC controller 23 sends a command to start the subsequent operation, thereby ensuring the normal operation of the entire device.
[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A novel plate type liquid cooling secondary side water ultrafiltration mechanism, characterized in that: Including water cooling assembly, one side of water cooling assembly is equipped with ultrafiltration assembly, water cooling assembly includes plate heat exchanger, one side of plate heat exatcher is provided with water inlet pipe A, the lower portion of water inlet pipe A is provided with drain pipe A, the other side of plate heat exchanger is provided with water inlet pipe B, the upper portion of water inlet pipe B is provided with drain pipe B, drain pipe A and drain pipe B are installed on plate heat exchanger, ultrafiltration assembly includes control box, control box is communicated with drain pipe B, control box is internally provided with ultrafiltration booster pump, ultrafiltration booster pump is matched with drain pipe B, control box is internally provided with PLC controller, the output end of control box is installed with ultrafiltration part, one side of control box is provided with constant pressure tank, the output end of constant pressure tank is matched with water inlet pipe B, the upper end of constant pressure tank is installed with monitoring part.
2. The novel plate type liquid cooling secondary side water ultrafiltration mechanism according to claim 1, characterized in that: Bypass pipe is installed on the control box, one end of bypass pipe is communicated with the input end of control box, the other end of bypass pipe is communicated with the output end of control box, hand valve and electric control valve are installed on bypass pipe, PLC controller is electrically connected with electric control valve.
3. The novel plate type liquid cooling secondary side water ultrafiltration mechanism according to claim 1, characterized in that: The ultrafiltration part includes ultrafiltration box body, the inside of ultrafiltration box body is provided with ultrafiltration membrane, the upper end of ultrafiltration box body is installed with ultrafiltration box cover.
4. The novel plate type liquid cooling secondary side water ultrafiltration mechanism according to claim 1, characterized in that: Sampling part is installed on one side of constant pressure tank, sampling part includes sampling pipe, constant pressure tank is communicated with sampling pipe, valve is installed on sampling pipe.
5. The novel plate type liquid cooling secondary side water ultrafiltration mechanism according to claim 1, characterized in that: The monitoring part includes conductivity monitor, one side of conductivity monitor is provided with dissolved oxygen monitor, one side of dissolved oxygen monitor is provided with PH value monitor, PLC controller is electrically connected with conductivity monitor, dissolved oxygen monitor and PH value monitor.
6. The novel plate type liquid cooling secondary side water ultrafiltration mechanism according to claim 1, characterized in that: The connecting pipe is installed between the output end of control box and the input end of constant pressure tank, water pump is installed on connecting pipe.