One-driving-N forced deionization filtering closed circulating water cooling system

Abstract

The invention relates to a one-driving-N forced deionization filtering closed circulating water cooling system which is characterized by comprising N sets of liquid supply modules, the N sets of liquid supply modules share one set of buffer deionization module and one set of refrigeration / heat exchange module, each set of liquid supply module comprises a main pump, a water inlet of the main pump is connected with a water outlet pipeline of a corresponding thermal load, and a water outlet pipeline of the main pump is connected with a water outlet pipeline of a corresponding thermal load. A water outlet of the main pump communicates with a heat exchange inlet of the refrigeration / heat exchange module, the buffer deionization module comprises a water supplementing unit and a deionization unit which are connected through a pipeline, and a heat exchange outlet of the refrigeration / heat exchange module communicates with the water supplementing unit and a water inlet of the heat load at the same time. And the deionization unit is also communicated with the main pump water inlet of each set of liquid supply module. According to the invention, redundant liquid supply design matched with a plurality of thermal loads is adopted, modular service is carried out on the plurality of thermal loads, the matching requirements of different water-cooling products are met, the types of materials are reduced, and the cost is reduced as much as possible on the premise of meeting the use requirements of users.

Description

Technical Field

[0001] This invention specifically relates to a one-to-N forced deionization filtration closed-loop water cooling system, belonging to the field of water cooling design technology. Background Technology

[0002] Water cooling products are gradually evolving towards standardization, modularization, meeting increasingly higher user demands, and lowering costs. From the user's perspective, they expect water cooling products to be functionally modular for easier operation and maintenance, and they also want the design to consider actual operating conditions and incorporate various functions suitable for real-world scenarios. From the manufacturer's perspective, they desire a high degree of standardization, with modules for the same functions being as similar as possible across different water cooling products to reduce design costs and material types; and they want products to meet user requirements while minimizing costs.

[0003] Currently, mainstream water cooling systems still resemble the design described in patent CN109065514A. This patent describes a system comprising a water pump module, a buffer module, a deionization module, and a chiller unit. While the chiller unit uses standardized products, the water pump, buffer, and deionization modules are integrated into a single unit, serving a single heat load. It's conceivable that when users have new needs, manufacturers typically redesign a new water cooling product. Although the principle remains the same, the new product lacks module-level interchangeability with the old one. From the user's perspective, they need to familiarize themselves with a new product; from the manufacturer's perspective, the new water cooling system also needs redesigning, new materials and components need to be procured, and third-party testing reports for the new product may even need to be provided to the user. This is undoubtedly extremely detrimental to both user experience and manufacturer cost control. Summary of the Invention

[0004] The purpose of this invention is to provide a one-to-N forced deionization filtration closed-loop water cooling system with a redundant liquid supply design that matches multiple heat loads. This system can not only provide modular services for multiple heat loads and meet the matching requirements of different water cooling products, but also reduce the types of materials and minimize costs while meeting user requirements.

[0005] To achieve the above objectives, the technical solution of this invention is: a one-to-N forced deionization filtration closed-loop water cooling system, the innovation of which lies in: including N sets of liquid supply modules, and the N sets of liquid supply modules sharing one set of buffer deionization module and one set of cooling / heat exchange module.

[0006] The N sets of liquid supply modules operate independently of each other, and each set of liquid supply modules provides cooling water that meets the flow requirements for a single heat load.

[0007] Each liquid supply module includes a main pump and a flow transmitter. The inlet of the main pump is connected to the outlet pipeline of the corresponding heat load, and the flow transmitter is installed on this pipeline. The outlet of the main pump is connected to the heat exchange inlet of the refrigeration / heat exchange module.

[0008] The buffer deionization module is used for automatic water replenishment and deionization filtration purification, and it includes a water replenishment unit and a deionization unit connected by pipelines.

[0009] The heat exchange outlet of the refrigeration / heat exchange module is connected to both the water supply unit and the inlet of the heat load, and the deionization unit is also connected to the main pump inlet of each liquid supply module.

[0010] In the above technical solution, the liquid supply module also includes a main pump check valve, which is located on the pipeline connecting the main pump and the refrigeration / heat exchange module.

[0011] In the above technical solution, the liquid supply module further includes a liquid supply pressure transmitter and a liquid return pressure transmitter.

[0012] A return pressure transmitter is also installed on the pipeline connecting the main pump inlet to the corresponding heat load, and the return pressure transmitter is located between the main pump and the flow transmitter.

[0013] A liquid supply pressure transmitter is also installed on the pipeline connecting the heat exchange outlet of the refrigeration / heat exchange module and the water inlet of the heat load.

[0014] In the above technical solution, the water replenishment unit includes a water replenishment tank, a water replenishment pump, a water replenishment solenoid valve, and a check valve for the water replenishment and forced filtration branch.

[0015] The outlet of the water replenishment tank is connected to the inlet pipe of the water replenishment pump, and a water replenishment solenoid valve is provided on the pipe. The outlet of the water replenishment pump is connected to the inlet pipe of the deionization unit, and a water replenishment and forced filtration branch check valve is provided on the pipe.

[0016] In the above technical solution, the water replenishment tank is equipped with a level transmitter, and the top and bottom of the water replenishment tank are respectively equipped with a water replenishment switch valve and a drain valve.

[0017] In the above technical solution, the pipeline connecting the water supply pump and the inlet of the deionization unit is also equipped with a fine filter, a direct-reading pressure gauge, and a float-type flow meter.

[0018] The fine filter and direct-reading pressure gauge are located between the check valve and the water supply pump in the water supply and forced filtration branch, with the direct-reading pressure gauge close to the outlet of the water supply pump.

[0019] The float-type flow meter is located between the check valve of the water supply and forced filtration branch and the inlet of the deionization unit.

[0020] In the above technical solution, the water replenishment unit further includes a forced filtration solenoid valve and a passive filtration branch check valve.

[0021] The heat exchange outlet of the refrigeration / heat exchange module is connected to both the inlet of the water supply pump and the inlet pipe of the deionization unit. A forced filtration solenoid valve is installed on the pipe connecting the refrigeration / heat exchange module and the water supply pump, and a passive filtration branch check valve is installed on the pipe connecting the refrigeration / heat exchange module and the deionization unit.

[0022] In the above technical solution, the deionization unit includes a deionization tank, a buffer tank, a level transmitter, and a pressure stabilization branch.

[0023] The inlet of the deionization tank is connected to the outlet of the water replenishment unit, and the outlet of the deionization tank is connected to the inlet of the buffer tank. The outlet of the buffer tank is connected to the main pump inlet of each liquid supply module.

[0024] The buffer tank is also equipped with a pressure stabilization branch and a level transmitter for monitoring high and low liquid levels.

[0025] In the above technical solution, the pressure stabilizing branch includes an exhaust solenoid valve, an air compressor, an intake solenoid valve, a replenishment branch check valve, a buffer tank pressure transmitter, and an exhaust valve. The buffer tank is also equipped with a pressure regulating branch pipe, on which the exhaust solenoid valve, intake solenoid valve, replenishment branch check valve, and exhaust valve are sequentially installed.

[0026] An air compressor is also installed on the pressure regulating branch pipe, located between the exhaust solenoid valve and the intake solenoid valve.

[0027] A buffer tank pressure transmitter is also installed on the pressure regulating branch pipe, located between the check valve and the exhaust valve of the gas supply branch.

[0028] In the above technical solution, the inlet at the top of the deionization tank is provided with an exhaust valve, and the bottom of the tank is provided with a drain valve for discharging resin.

[0029] In the above technical solution, a fine filter is provided between the deionization tank and the buffer tank.

[0030] In the above technical solution, a conductivity transmitter is also provided on the pipeline connecting the outlet of the main pump and the heat exchange inlet of the refrigeration / heat exchange module.

[0031] In the above technical solution, a main filter and a liquid supply temperature transmitter are also provided on the pipeline connecting the heat exchange outlet of the refrigeration / heat exchange module and the water inlet of the heat load.

[0032] In the above technical solution, the refrigeration / heat exchange module is a water chiller, an air cooler, or a water-to-water heat exchanger.

[0033] The positive effects of this invention are: The one-to-N forced deionization filtration closed-loop water cooling system of this invention includes N sets of liquid supply modules, and these N sets of liquid supply modules share one buffer deionization module and one cooling / heat exchange module.

[0034] The N sets of liquid supply modules operate independently of each other, and each set of liquid supply modules provides cooling water that meets the flow requirements for a single heat load.

[0035] Each liquid supply module includes a main pump and a flow transmitter. The inlet of the main pump is connected to the outlet pipeline of the corresponding heat load, and the flow transmitter is installed on this pipeline. The outlet of the main pump is connected to the heat exchange inlet of the refrigeration / heat exchange module.

[0036] The buffer deionization module is used for automatic water replenishment and deionization filtration purification, and it includes a water replenishment unit and a deionization unit connected by pipelines.

[0037] The heat exchange outlet of the refrigeration / heat exchange module is connected to both the water supply unit and the inlet of the heat load. The deionization unit is also connected to the main pump inlet of each liquid supply module.

[0038] This invention features N sets of liquid supply modules, providing a redundant modular liquid supply design for multiple water-cooled products. Specifically, the N sets of liquid supply modules can supply cooling water to multiple heat loads respectively, and a single refrigeration / heat exchange module serves multiple liquid supply modules to achieve a 1-to-N concept, providing cooling and heat exchange for the entire water-cooling system. Furthermore, the N sets of liquid supply modules are uniformly controlled by a single buffer deionization module for voltage regulation, deionization and purification of the circulating cooling water, and automatic water replenishment for monitoring and cooling.

[0039] When this invention is applied in actual production scenarios, it can match an equal number of liquid supply modules to the number of water-cooled products the user has, providing a standardized and modular liquid supply system for multiple water-cooled products. Even when new wet water-cooled products need to be added, there is no need to configure an additional complete water-cooling system; only a liquid supply module that meets its water-cooling requirements needs to be added. In this way, users do not need to familiarize themselves with a new cooling system, and manufacturers do not need to redesign a new cooling system.

[0040] This invention not only provides modular services for multiple heat loads to meet the matching requirements of different water-cooling products, but also reduces the types of materials and minimizes costs while meeting user requirements. Attached Figure Description

[0041] Figure 1This is a structural schematic diagram of a specific embodiment of the present invention.

[0042] In the diagram, 1. Liquid supply module, 11. Main pump, 12. Flow transmitter, 13. Main pump check valve, 14. Liquid supply pressure transmitter, 15. Return pressure transmitter, 16. Conductivity transmitter, 17. Main filter, 18. Liquid supply temperature transmitter.

[0043] 2. Buffer deionization module; 211. Water supply tank; 212. Water supply pump; 213. Water supply solenoid valve; 214. Water supply and forced filtration branch check valve; 215. Fine filter; 216. Direct reading pressure gauge; 217. Float-type flow meter; 218. Forced filtration solenoid valve; 219. Passive filtration branch check valve; 221. Deionization tank; 222. Buffer tank; 223. Level transmitter; 224. Exhaust solenoid valve; 225. Air compressor; 226. Inlet solenoid valve; 227. Air supply branch check valve; 228. Buffer tank pressure transmitter; 229. Exhaust valve.

[0044] 3. Refrigeration / heat exchange module. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings and the given embodiments, but is not limited thereto.

[0046] like Figure 1 As shown, a one-to-N forced deionization filtration closed-loop water cooling system includes N sets of liquid supply modules 1, and the N sets of liquid supply modules 1 share a buffer deionization module 2 and a cooling / heat exchange module 3.

[0047] The N sets of liquid supply modules 1 operate independently of each other, and each set of liquid supply modules 1 provides cooling water that meets the flow requirements for an individual heat load.

[0048] Each liquid supply module 1 includes a main pump 11 and a flow transmitter 12. The inlet of the main pump 11 is connected to the outlet pipeline of the corresponding heat load, and the flow transmitter 12 is installed on the pipeline. The outlet of the main pump 11 is connected to the heat exchange inlet of the refrigeration / heat exchange module 3.

[0049] The buffer deionization module 2 is used for automatic water replenishment and deionization filtration purification, and it includes a water replenishment unit and a deionization unit connected by pipelines.

[0050] The heat exchange outlet of the cooling / heat exchange module 3 is connected to both the water supply unit and the inlet of the heat load, and the deionization unit is also connected to the inlet of the main pump 11 of each liquid supply module 1.

[0051] Furthermore, such as Figure 1As shown, in order to prevent the cooling water from flowing back in the circulation loop, which would affect the cooling effect and the reliability of the cooling performance, the liquid supply module 1 also includes a main pump check valve 13, which is located on the pipeline connecting the main pump 11 and the refrigeration / heat exchange module 3.

[0052] Furthermore, such as Figure 1 As shown, in order to monitor the pressure of cooling water on the supply and return branches in real time and ensure the reliable operation of the entire system, the supply module 1 also includes a supply pressure transmitter 14 and a return pressure transmitter 15.

[0053] A return pressure transmitter 15 is also installed on the pipeline connecting the inlet of the main pump 11 and the corresponding heat load, and the return pressure transmitter 15 is located between the main pump 11 and the flow transmitter 12.

[0054] A liquid supply pressure transmitter 14 is also provided on the pipeline connecting the heat exchange outlet of the refrigeration / heat exchange module 3 and the water inlet of the heat load.

[0055] Furthermore, such as Figure 1 As shown, in order to achieve automatic water replenishment, the water replenishment unit includes a water replenishment tank 211, a water replenishment pump 212, a water replenishment solenoid valve 213, and a check valve 214 for the water replenishment and forced filtration branch.

[0056] The outlet of the water replenishment tank 211 is connected to the inlet pipe of the water replenishment pump 212, and a water replenishment solenoid valve 213 is provided on the pipe. The outlet of the water replenishment pump 212 is connected to the inlet pipe of the deionization unit, and a water replenishment and forced filtration branch check valve 214 is provided on the pipe.

[0057] Furthermore, such as Figure 1 As shown, in order to monitor the level of cooling water in the water replenishment tank in real time and effectively prevent the water from being too much or too little, which would affect the water replenishment of the system, the water replenishment tank 211 is equipped with a level transmitter on the tank body, and the top and bottom of the water replenishment tank 211 are respectively equipped with a water replenishment switch valve and a drain valve.

[0058] Furthermore, such as Figure 1 As shown, in order to filter the makeup water and to directly read the pressure and flow rate on the makeup water branch, a fine filter 215, a direct-reading pressure gauge 216, and a float-type flow meter 217 are also installed on the pipeline connecting the makeup water pump 212 and the inlet of the deionization unit.

[0059] The fine filter 215 and the direct-reading pressure gauge 216 are located between the check valve 214 and the water supply pump 212 in the water supply and forced filtration branch, with the direct-reading pressure gauge 216 close to the outlet of the water supply pump 212.

[0060] The float-type flow meter 217 is located between the check valve 214 of the water supply and forced filtration branch and the inlet of the deionization unit.

[0061] Furthermore, such as Figure 1 As shown, in order to switch between passive deionization filtration and forced deionization filtration modes and to prevent water in the system from flowing back out of the water supply pipe, the water supply unit also includes a forced filtration solenoid valve 218 and a passive filtration branch check valve 219. The heat exchange outlet of the refrigeration / heat exchange module 3 is connected to both the inlet of the water supply pump 212 and the inlet pipe of the deionization unit. A forced filtration solenoid valve 218 is provided on the pipe connecting the refrigeration / heat exchange module 3 and the water supply pump 212, and a passive filtration branch check valve 219 is provided on the pipe connecting the refrigeration / heat exchange module 3 and the deionization unit.

[0062] The present invention connects the water replenishment pump 212 in the water replenishment unit in series with the branch of the deionization unit, and realizes the dual functions of automatic water replenishment and forced deionization filtration of the water replenishment pump 212 through the control of the water replenishment solenoid valve 213 and the forced filtration solenoid valve 218.

[0063] In normal mode, the water replenishment solenoid valve 213 is open, the forced filter solenoid valve 218 is closed, and the water replenishment pump 213 acts as a water replenishment device. Specifically, when the level transmitter 223 on the buffer tank 222 detects that the liquid level in the buffer tank 222 is low, the water replenishment pump 212 is turned on to input the cooling water in the water replenishment tank 211 into the system.

[0064] In the forced filtration mode, the water replenishment solenoid valve 213 is closed, the forced filtration solenoid valve 218 is opened, and the water replenishment pump 213 runs simultaneously and performs forced deionization filtration.

[0065] Furthermore, such as Figure 1 As shown, in order to achieve system pressure stability and automatic gas replenishment, the deionization unit includes a deionization tank 221, a buffer tank 222, a level transmitter 223, and a pressure stabilization branch.

[0066] The inlet of the deionization tank 221 is connected to the outlet of the water replenishment unit, and the outlet of the deionization tank 221 is connected to the inlet of the buffer tank 222. The outlet of the buffer tank 222 is connected to the inlet of the main pump 11 of each liquid supply module 1.

[0067] The buffer tank 222 is also equipped with a pressure stabilization branch and a level transmitter 223 for monitoring high and low liquid levels.

[0068] Furthermore, such as Figure 1As shown, to specifically achieve the air replenishment function, the pressure stabilization branch includes an exhaust solenoid valve 224, an air compressor 225, an intake solenoid valve 226, an air replenishment branch check valve 227, a buffer tank pressure transmitter 228, and an exhaust valve 229. The buffer tank 222 is also equipped with a pressure regulating branch pipe, on which the exhaust solenoid valve 224, intake solenoid valve 226, air replenishment branch check valve 227, and exhaust valve 229 are sequentially mounted.

[0069] An air compressor 225 is also provided on the pressure regulating branch pipe, located between the exhaust solenoid valve 224 and the intake solenoid valve 226.

[0070] A buffer tank pressure transmitter 228 is also provided on the pressure regulating branch pipe and located between the gas supply branch check valve 227 and the exhaust valve 229.

[0071] Furthermore, in order to facilitate the replenishment or discharge of excess resin, the deionization tank 221 is equipped with an exhaust valve at the top inlet and a drain valve at the bottom for discharging resin.

[0072] Furthermore, in order to achieve multiple filtration of cooling water and prevent the makeup water from containing resin ions, a fine filter is provided between the deion tank 221 and the buffer tank 222.

[0073] Furthermore, such as Figure 1 As shown, in order to monitor the conductivity in the cooling water circulation loop and realize PID control, a conductivity transmitter 16 is also provided on the pipeline connecting the outlet of the main pump 11 and the heat exchange inlet of the refrigeration / heat exchange module 3.

[0074] Furthermore, such as Figure 1 As shown, in order to enable filtration in the cooling water circulation loop and to detect the real-time temperature of the supplied liquid, a main filter 17 and a liquid supply temperature transmitter 18 are also provided on the pipeline connecting the heat exchange outlet of the refrigeration / heat exchange module 3 and the water inlet of the heat load.

[0075] It should be further explained that in the normal mode, the flow rate of the deion unit branch is driven by the pressure difference between the water pipes on both sides of the deion branch inlet and outlet, namely the pressure difference between the front end of the main filter 17 and the front end of the main pump 11. This pressure difference is mainly determined by the pipe pressure loss and the head of the main pump 11, and the flow rate is usually limited. However, in the forced deion filtration mode, since the makeup water pump 212 is connected in series in the branch of the deion unit, it can provide additional driving force for the deion flow rate. Therefore, the deion flow rate will increase significantly, greatly accelerating the deion filtration and purification effect of the cooling water in the water cooling system.

[0076] Furthermore, the refrigeration / heat exchange module 3 is a water chiller, an air cooler, or a water-to-water heat exchanger.

[0077] Furthermore, to achieve more intelligent and precise control of the forced deionization purification function, this invention uses a PID control strategy to macroscopically regulate the forced deionization purification function by detecting the conductivity of the cooling water.

[0078] The water cooling system of this invention detects the conductivity of the cooling water. When the conductivity is below a certain value, there is no need to activate the forced filtration mode; the system achieves automatic purification and filtration through the pressure difference between the two ends of the main pipeline via the deion unit branch. When the conductivity is above a certain value, the forced filtration mode is activated, and the speed of the water replenishment pump is adjusted according to PID control.

[0079] Since the water cooling system described in this invention is a 1-to-N water cooling system, where the N water cooling systems may not start simultaneously and their capacities may not be the same, a general PID control algorithm cannot be directly and simply applied. Therefore, this invention provides a PID control system for a 1-to-N forced deionization filtration closed-loop circulating water system, specifically as follows:

[0080] Assume the buffer deionization unit has a total of N supply modules, and x supply modules are currently running, where the water volume corresponding to the j-th supply module (j≤x) is L. j The current total water volume of the system is Consider configuring a separate conductivity sensor for each liquid supply module and detecting the conductivity of the corresponding liquid supply module, denoted as q. j The conductivity threshold for forced filtering mode is q. y Similarly, the proportional benefit corresponding to the j-th liquid supply module is denoted as K. pj The integral benefit is denoted as K. ij The differential benefit is denoted as K. dj .

[0081] In addition, the current continuous operating time of the j-th liquid supply module is denoted as T. j Then the error value e of the j-th set j =q j -q y Expected control output value:

[0082]

[0083] The final output value of the control equipment is taken as the weighted average of the error values ​​of each liquid supply module, with the weight taken as the water volume of the corresponding cooling model.

[0084]

[0085] Therefore, the final control strategy for the forced water replenishment mode is:

[0086] 1) Detect whether the level in the buffer tank is lower than the set level. When the condition is met, the water pump is used to replenish water to the system, and the forced deionization filtration function is disabled.

[0087] 2) When condition 1) is not met, read the conductivity reading detected by the corresponding liquid supply module currently in operation. When the conductivity reading is lower than the threshold, deionization is achieved through automatic purification filtration mode, and the forced deionization filtration function is not activated.

[0088] When neither condition 1) nor 2) is met, the forced deionization filtration function is activated. The water supply pump is used to accelerate the deionization circulation flow rate and improve the deionization filtration purification efficiency. The speed of the variable frequency water supply pump changes dynamically according to the calculation result of the formula above. When the conductivity is detected to decrease to <threshold - floating deviation, the forced deionization filtration function is deactivated, and the system resumes the automatic purification filtration mode.

[0089] The functions and implementation methods of each unit in this invention are as follows:

[0090] The heat load of this invention is the user's cooling equipment, which generates heat during operation. The number of liquid supply modules is matched to the number of heat loads. Liquid supply module 1 provides cooling water to the heat load; that is, the cooling water is sent to the refrigeration / heat exchange module 3 via the main pump 11. The refrigeration / heat exchange module 3 is responsible for dissipating the heat of the entire system to the external environment. The flow transmitter 12, return pressure transmitter 15, and supply pressure transmitter 14 detect the flow rate of the cooling water to the heat load and the pressure of the return and supply liquids. The conductivity transmitter 16 monitors the conductivity of the cooling water to achieve precise control of deionization purification. The main filter 17 filters impurities from the cooling water.

[0091] The buffer deionization module 2 is responsible for stabilizing the system pressure, detecting the system cooling water volume, and realizing automatic water replenishment, deionization filtration and purification.

[0092] Pressure stabilization is achieved through the pressure stabilization branch, specifically as follows:

[0093] When the buffer tank pressure transmitter 228 detects that the system pressure is too low, the exhaust solenoid valve 224 closes, the intake solenoid valve 226 opens, and the air compressor 225 runs to replenish the system with air and increase the system pressure.

[0094] When the buffer tank pressure transmitter 228 detects that the system pressure is too high, the exhaust valve 229 automatically opens to release air and reduce the system pressure.

[0095] The specific process of detecting the water volume of the system and realizing automatic water replenishment is as follows:

[0096] When the level transmitter 223 detects that the liquid level in the buffer tank 222 is too low, the water replenishment solenoid valve 213 opens and the water replenishment pump 212 runs, delivering cooling water from the water replenishment tank 211 to the system. The water replenishment and forced filtration branch check valve 214 prevents water in the system from flowing back out of the water replenishment pipeline.

[0097] This invention provides two methods for deion filtration and purification of cooling water: one is passive deion filtration, and the other is forced deion filtration.

[0098] Passive deionization filtration utilizes the pressure difference across the pipeline during normal operation of the water cooling system to provide driving force. Specifically, the cooling water in the deionization unit branch enters from the inlet of the deionization unit (i.e., the front end of the main filter 17), passes through the passive filtration branch check valve 219, flows through the deion tank 221 to achieve deionization filtration, then enters the buffer tank 222, and finally flows out from the outlet of the deionization unit (i.e., the front end of the main pump 11).

[0099] When the forced deionization filter is activated, the water supply solenoid valve 213 is closed, the forced filtration solenoid valve 218 is opened, and the operation of the water supply pump 212 provides additional driving force to the deionization unit. Cooling water in the deionization unit branch enters from the inlet of the deionization unit (i.e., the front end of the main filter 17), flows through the forced filtration solenoid valve 218, the water supply pump 212, and the check valve 214 of the water supply and forced filtration branch, passes through the deionization tank 221 to achieve deionization filtration, then enters the buffer tank 222, and finally flows out from the outlet of the deionization unit (i.e., the front end of the main pump 11).

[0100] It should be noted that during the design phase of a water-cooling system, it is necessary to first verify whether the forced filtration function meets the resin bed volume usage range. Bed volume is defined as the amount of water flowing through a unit volume of resin per unit time, expressed in BV / h, and calculated as 60 × Q / V, where Q is the deionization flow rate (L / min) and V is the resin volume (L). Generally, a larger bed volume results in better resin filtration; however, an excessively large bed volume significantly increases the risk of resin breakage, reduces resin lifespan, and has no significant effect on increasing deionization filtration. A bed volume range of 10–60 BV / h is generally recommended.

[0101] In passive deionization filtration, the deionization flow rate is driven by the pressure difference between the inlet and outlet of the deionization unit in the main circulation loop. When the pressure loss due to heat load is high, the pressure difference between the inlet and outlet of the deionization unit is also high, resulting in a high deionization flow rate and the bed volume operating near the upper limit of the recommended resin value. Conversely, when the pressure loss due to heat load is low, the pressure difference between the inlet and outlet of the deionization unit is low, resulting in a low deionization flow rate and the bed volume operating near the lower limit of the recommended resin value, meaning the bed volume is not fully utilized. Therefore, when the pressure loss due to heat load is low, activating the forced filtration function will significantly improve the deionization filtration efficiency of the resin.

[0102] Considering that the priority of water replenishment is generally higher than that of forced deionization purification, an interlocking function can be added to the water cooling system control strategy. When the level transmitter 223 detects that the liquid level in the buffer tank 222 is low, it exits the forced deionization filtration mode and automatically replenishes water. That is, the water replenishment solenoid valve 213 opens, while the forced filtration solenoid valve 218 closes, and the water replenishment pump 212 resumes its water replenishment function. When the low liquid level alarm is cleared, it can return to the forced deionization filtration mode, that is, the forced filtration solenoid valve 218 opens, while the water replenishment solenoid valve 213 closes.

[0103] In summary, this invention features N sets of liquid supply modules, providing a redundant modular liquid supply design for multiple water-cooled products. Specifically, the N sets of liquid supply modules can supply cooling water to multiple heat loads respectively, and utilize one refrigeration / heat exchange module to serve multiple liquid supply modules, realizing the 1-to-N concept. This provides cooling and heat exchange for the entire water-cooling system. Furthermore, the N sets of liquid supply modules are uniformly controlled by a single buffer deionization module for voltage regulation, and the circulating cooling water is deionized, purified, and automatically replenished for water cooling detection.

[0104] When this invention is applied in actual production scenarios, it can match an equal number of liquid supply modules to the number of water-cooled products the user has, providing a standardized and modular liquid supply system for multiple water-cooled products. Even when new wet water-cooled products need to be added, there is no need to configure an additional complete water-cooling system; only a liquid supply module that meets its water-cooling requirements needs to be added. In this way, users do not need to familiarize themselves with a new cooling system, and manufacturers do not need to redesign a new cooling system.

[0105] This invention not only provides modular services for multiple heat loads to meet the matching requirements of different water-cooling products, but also reduces the types of materials and minimizes costs while meeting user requirements.

[0106] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A one-to-N forced deionization filtration closed-loop water cooling system, characterized in that: It includes N sets of liquid supply modules (1), and N sets of liquid supply modules (1) sharing one set of buffer deionization module (2) and one set of refrigeration / heat exchange module (3). The N sets of liquid supply modules (1) operate independently of each other, and each set of liquid supply modules (1) provides cooling water that meets the flow requirements for a separate heat load. Each liquid supply module (1) includes a main pump (11) and a flow transmitter (12). The inlet of the main pump (11) is connected to the outlet pipeline of the corresponding heat load, and the flow transmitter (12) is installed on the pipeline. The outlet of the main pump (11) is connected to the heat exchange inlet of the refrigeration / heat exchange module (3). The buffer deionization module (2) is used for automatic water replenishment and deionization filtration purification, and it includes a water replenishment unit and a deionization unit connected by pipelines. The heat exchange outlet of the refrigeration / heat exchange module (3) is connected to both the water supply unit and the inlet of the heat load. The deionization unit is also connected to the inlet of the main pump (11) of each liquid supply module (1).

2. The one-to-N forced deionization filtration closed-loop circulating water cooling system according to claim 1, characterized in that: The liquid supply module (1) also includes a main pump check valve (13), which is located on the pipeline connecting the main pump (11) and the refrigeration / heat exchange module (3).

3. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 1, characterized in that: The liquid supply module (1) also includes a liquid supply pressure transmitter (14) and a liquid return pressure transmitter (15). A return pressure transmitter (15) is also provided on the pipeline connecting the inlet of the main pump (11) and the corresponding heat load, and the return pressure transmitter (15) is located between the main pump (11) and the flow transmitter (12). A liquid supply pressure transmitter (14) is also provided on the pipeline connecting the heat exchange outlet of the refrigeration / heat exchange module (3) and the water inlet of the heat load.

4. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 1, characterized in that: The water replenishment unit includes a water replenishment tank (211), a water replenishment pump (212), a water replenishment solenoid valve (213), and a check valve (214) for the water replenishment and forced filtration branch. The outlet of the water replenishment tank (211) is connected to the inlet pipe of the water replenishment pump (212), and the water replenishment solenoid valve (213) is provided on the pipe. The outlet of the water replenishment pump (212) is connected to the inlet pipe of the deionization unit, and the water replenishment and forced filtration branch check valve (214) is provided on the pipe.

5. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 4, characterized in that: The water replenishment tank (211) is equipped with a level transmitter, and the top and bottom of the water replenishment tank (211) are respectively equipped with a water replenishment switch valve and a drain valve.

6. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 4, characterized in that: The pipeline connecting the water supply pump (212) and the inlet of the deionization unit is also equipped with a fine filter (215), a direct-reading pressure gauge (216), and a float-type flow meter (217). The fine filter (215) and the direct-reading pressure gauge (216) are located between the check valve (214) and the water supply pump (212) in the water supply and forced filtration branch, and the direct-reading pressure gauge (216) is close to the outlet of the water supply pump (212). The float-type flow meter (217) is located between the check valve (214) of the water supply and forced filtration branch and the inlet of the deionization unit.

7. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 4, characterized in that: The water replenishment unit also includes a forced filtration solenoid valve (218) and a passive filtration branch check valve (219). The heat exchange outlet of the refrigeration / heat exchange module (3) is connected to both the inlet of the water replenishment pump (212) and the inlet pipe of the deionization unit. A forced filtration solenoid valve (218) is provided on the pipe connecting the refrigeration / heat exchange module (3) and the water replenishment pump (212). A passive filtration branch check valve (219) is provided on the pipe connecting the refrigeration / heat exchange module (3) and the deionization unit.

8. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 1, characterized in that: The deionization unit includes a deionization tank (221), a buffer tank (222), a level transmitter (223), and a pressure stabilization branch. The inlet of the deion tank (221) is connected to the outlet of the water replenishment unit, and the outlet of the deion tank (221) is connected to the inlet of the buffer tank (222). The outlet of the buffer tank (222) is connected to the inlet of the main pump (11) of each liquid supply module (1). The buffer tank (222) is also equipped with a pressure stabilization branch and a level transmitter (223) for monitoring high and low liquid levels.

9. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 8, characterized in that: The pressure stabilizing branch includes an exhaust solenoid valve (224), an air compressor (225), an intake solenoid valve (226), a replenishment branch check valve (227), a buffer tank pressure transmitter (228), and an exhaust valve (229). The buffer tank (222) is also equipped with a pressure regulating branch pipe, on which the exhaust solenoid valve (224), intake solenoid valve (226), replenishment branch check valve (227), and exhaust valve (229) are sequentially installed. An air compressor (225) is also provided on the pressure regulating branch pipe, located between the exhaust solenoid valve (224) and the intake solenoid valve (226). A buffer tank pressure transmitter (228) is also provided on the pressure regulating branch pipe and located between the gas supply branch check valve (227) and the exhaust valve (229).

10. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 8, characterized in that: The deionization tank (221) has an exhaust valve at the top inlet and a drain valve at the bottom for discharging resin.

11. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 8, characterized in that: A fine filter is provided between the deionization tank (221) and the buffer tank (222).

12. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 1, characterized in that: A conductivity transmitter (16) is also provided on the pipeline connecting the outlet of the main pump (11) and the heat exchange inlet of the refrigeration / heat exchange module (3).

13. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 1, characterized in that: The pipeline connecting the heat exchange outlet of the refrigeration / heat exchange module (3) and the water inlet of the heat load is also equipped with a main filter (17) and a liquid supply temperature transmitter (18).

14. The one-to-N forced deionization filtration closed-loop water cooling system according to claim 1, characterized in that: The refrigeration / heat exchange module (3) is a water chiller, an air cooler, or a water-to-water heat exchanger.

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