TWM589423U - Liquid-cooling heat dissipation system with water quality monitoring function - Google Patents

Abstract

This creation provides a liquid cooling system with water quality monitoring, including a first liquid inlet, a first liquid outlet, a heat exchange unit, a sensing unit, and a connection between the sensing unit and a first pump The control unit of the heat exchange unit is provided with a heat exchanger communicating with the first liquid inlet and the first pump communicating with the first liquid outlet and the heat exchanger, the first pump is used to drive After heat exchange in the heat exchanger for a first working liquid, the control unit compares the sensing signal output by the sensing unit to the pH value of the first working liquid with a preset pH range to A comparison result is generated and sent to an external interface; this design is created through this book to achieve the effect of monitoring the pH of the water quality.

Description

Liquid cooling system with water quality monitoring

This work is about a liquid cooling system, especially a liquid cooling system with water quality monitoring that can achieve the monitoring of water quality.

Advances in technology can improve the convenience of human life, especially the current use of various data processing and Internet applications, all relying on the operation of electronic devices. Therefore, electronic devices with high-speed processing performance and large storage energy are widely used Used in various enterprises. The traditional case of a cabinet (cabinet) that can accommodate various heating elements in IT, communication, industry, transportation, transportation, etc. is used as an illustration. The interior of the cabinet (cabinet) is a closed-type accommodating space, and the accommodating space It can accommodate a plurality of heating elements (can be a central processing unit (CPU), a microprocessor or a chip or a single chip or other units or devices that generate heat sources due to electric drive, etc.), and a plurality of heating elements are provided in the accommodating space The water cooling head is attached to each heating element, and the internal working fluid is brought to the water drain by a tube body group and a pump, and is driven into the accommodating space of the chassis (cabinet) through the fan installed inside. Gas, so that the working fluid that absorbs heat in the water drain exchanges heat with the gas inside the cabinet (cabinet) to achieve heat dissipation and reduce the temperature of each heating element. However, the above heat dissipation cycle process is only for heat exchange and heat dissipation inside the chassis (cabinet). The chassis (cabinet) is provided with a plurality of high-power watt central processors, and the water drain and The temperature of the gas discharged by the fan is relatively high, and because the case (cabinet) is a closed space, this will cause the hot gas to stay in the case (cabinet) and cannot be discharged, which is easy to cause the overall heat dissipation The vicious cycle of continuous decline in efficiency and the inability to remove heat immediately, resulting in extremely poor heat dissipation and poor heat exchange efficiency. Therefore, how to solve the above-mentioned problems and deficiencies in practice is the one where the creators of this case and the relevant manufacturers engaged in this industry are desperate to study the direction of improvement.

One purpose of this creation is to provide a liquid-cooled heat dissipation system with water quality monitoring that can achieve water pH monitoring. Another purpose of this creation is to provide a liquid-cooled heat dissipation system with water quality monitoring that can control the flow of working fluid, automatic water replenishment, and monitor system pressure. Another purpose of this creation is to provide a liquid-cooled heat dissipation system with water quality monitoring and warning functions. In order to achieve the above purpose, the author provides a liquid cooling system with water quality monitoring, including a first liquid inlet, a heat exchange unit, a sensing unit and a control unit. The heat exchange unit is provided with a A heat exchanger at the first liquid inlet and a first pump connecting the first liquid outlet and the heat exchanger, the first pump is used to drive a first working liquid after heat exchange in the heat exchanger, The sensing unit is provided with at least one pH sensor. The pH sensor is located at the passage of the first working liquid to sense a pH value of the first working liquid and generate a For a sensing signal of pH value, the control unit is connected to the sensing unit and the first pump, and the control unit compares the sensing signal with a preset pH value range to generate a ratio The results are transmitted to an external interface; through the design of the liquid cooling system with water quality monitoring, the water quality pH monitoring and alert reminding function can be effectively achieved, and the flow of working liquid can be effectively controlled and the water can be automatically replenished. Function and effect of monitoring system pressure.

The above-mentioned objects, structural and functional characteristics of this creation will be explained based on the preferred embodiments of the attached drawings. This creation provides a liquid-cooled heat dissipation system with water quality monitoring. Please refer to Figure 1 for a block diagram of the liquid-cooled heat dissipation system of the first embodiment of the creation; Figure 2 is an implementation of the first embodiment of the creation Example block diagram of a liquid-cooled heat dissipation system; Figure 3 is a block diagram of an embodiment of the liquid-cooled heat dissipation system of the first embodiment of the creation; Figure 3A is an embodiment of the first embodiment of the creation Block diagram of the implementation of liquid cooling system. As shown in the figure, the liquid cooling system 1 of this embodiment is applied to a data center (such as a computer room or a house). If the data center is equipped with one or more equipment for storing data technology (IT for short) in the computer room The cabinet 60 (such as servers and network communication equipment) is located in the machine room through the original liquid cooling system 1 to control the flow of a first working liquid 51 (such as cooling liquid) and intelligently monitor the pH of the water quality. , Water flow and system pressure, control water flow and water temperature and automatic water replenishment, etc., in the actual implementation of this creation, it also has other intelligent monitoring and reminding functions, such as intelligent monitoring of dew point and outlet water temperature, intelligent setting or warning remind. The liquid cooling system 1 includes a first liquid inlet 11, a first liquid outlet 12, a second liquid inlet 13, a second liquid outlet 14, a heat exchange unit 10, and a sensing unit 15 And a control unit 16, the heat exchange unit 10 communicates with the first liquid inlet 11 and the first liquid outlet 12 through a plurality of first fluid lines 191, and the heat exchange unit 10 uses the plurality of second fluid lines 192 communicates with the second liquid inlet 13 and the second liquid outlet 14, and is connected to the corresponding cabinet 60 through the plurality of first fluid lines 191 at the first liquid inlet 11 and the first liquid outlet 12 of this embodiment A cabinet water inlet 601 and a cabinet water outlet 602 are connected, and the second liquid inlet 13 and the second liquid outlet 14 are respectively corresponding to an external water supply device that provides a second working liquid 52 (such as cooling liquid) 40 (such as an ice water host or a cooling water tower) are connected and connected, for example, the external water supply device 40 is an inlet 401 and an outlet 402 of an ice water host, respectively connected to the plurality of second fluid lines 192 corresponding to the The second liquid inlet 13 is in communication with the second liquid outlet 14. The temperature of the second working liquid 52 entering the second liquid inlet 13 is lower than the temperature of the first working liquid 51 discharged from the first liquid outlet 12, and the second working liquid entering the second liquid inlet 13 The temperature of 52 is also lower than the temperature of the first working liquid 51 of the first liquid inlet 11 and the temperature of the second working liquid 52 of the second liquid outlet 14. The heat exchange unit 10 is provided with a heat exchanger 101 communicating with the first liquid inlet 11, a first pump 102 communicating with the first liquid outlet 12 and a reservoir containing the first working liquid 51 104, the reservoir 104 is disposed between the heat exchanger 101 and the first pump 102, and the reservoir 104 is respectively connected to the heat exchanger 101 and the first pump 102. In this embodiment, the reservoir The liquid reservoir 104 is connected to the heat exchanger 101 and the first pump 102 through the plurality of first fluid lines 191. The liquid reservoir 104 is used to temporarily store the first working fluid 51 passing through the heat exchanger 101 as a buffer . The heat exchanger 101 is shown as a plate heat exchanger 101 in this embodiment, but it is not limited to this. The heat exchanger 101 is used to provide a high temperature working liquid (such as the high temperature first working liquid of the first liquid inlet 11 51) A place for heat exchange with a low-temperature working liquid (such as the low-temperature second working liquid 52 of the second liquid inlet 13). The first liquid inlet 11 receives the high-temperature first working liquid 51 after collecting electronic components (such as a central processing unit) from IT equipment in one or more cabinets 60, and the second liquid inlet 13 is used to provide the outside ( For example, external water supply equipment 40) The low-temperature second working liquid 52 without waste heat enters the heat exchanger 101 of the liquid-cooled heat dissipation system 1, and the first liquid outlet 12 is used to provide high-temperature first working liquid 51 through the The heat exchanger 101, the reservoir 104, and the first pump 102 are cooled (or cooled) to a low temperature. The first working liquid 51 is discharged from the liquid cooling system 1, and the second liquid outlet 14 is used to provide a low temperature second The working liquid 52 is discharged through the high-temperature second working liquid 52 with waste heat formed after the heat exchanger 101, and the first liquid outlet 12 and the first liquid inlet 11 correspond to the first pump 102 and the One side of the heat exchanger 101 is connected and communicated through the plurality of first fluid lines 191, and the second liquid outlet 14 and the second liquid inlet 13 are connected to the side corresponding to the heat exchanger 101 (or the heat exchange The other side of the device 101 is connected and communicated through the plurality of second fluid lines 192. Therefore, the path from the first liquid inlet 11 to the first liquid outlet 12 is the internal circulation path of the liquid cooling heat dissipation system 1, and the path from the second liquid inlet 13 to the second liquid outlet 14 is the liquid cooling heat dissipation system 1. The outer circulation path, and the inner circulation path and the first and second working liquids 51 and 52 in the outer ring path are each in a separate circulation circuit and are not in communication, and the high-temperature working liquid (such as The high temperature first working liquid 51 of the first liquid inlet 11) exchanges heat with the low temperature working liquid (such as the low temperature second working liquid 52 of the second liquid inlet 13), so that the heat of the high temperature first working liquid 51 is transferred to the low temperature The second working liquid 52 becomes a low temperature after being cooled (or cooled). The first working liquid 51 flows into the reservoir 104 for storage, and then the first pump 102 is used to transfer the cryogenic first working liquid in the reservoir 104 51 is discharged out of the first liquid outlet 12 into the cabinet 60 and continues to circulate water for heat dissipation. At the same time, the second low-temperature working body 52 receives heat and becomes a high-temperature second working liquid 52, and passes through the second liquid outlet 14Outlet to the external water supply equipment 40. The temperature of the first working liquid 51 after the temperature is lowered is lower than that of the high-temperature first working liquid 51. The first pump 102 is used to drive the low-temperature first working liquid 51 stored in the liquid reservoir 104 after heat exchange in the heat exchanger 101 to be discharged into the cabinet 60 through the first liquid outlet 12, the The sensing unit 15 is provided with at least one pH sensor 151 and at least one temperature sensor 153. The pH sensor 151 and the temperature sensor 153 are disposed at the place where the first working liquid 51 passes. The pH sensor 151 is provided in the reservoir 104 in this embodiment, and is used to sense a pH value (PH value) of the first working liquid 51 and generate a sense corresponding to the pH value The measurement signal is sent to the control unit 16. The temperature sensor 153 is disposed at the first fluid line 191 adjacent to the first liquid outlet 12 to sense the temperature of the low-temperature first working liquid 51 discharged from the first liquid outlet 12 and generate a temperature sense The measurement signal is sent to the control unit 16. In specific implementation, the pH sensor 151 and the temperature sensor 153 are not limited to the above-mentioned numbers. Users can design and adjust more than two according to the accuracy of the water pH value and the temperature requirements in the system. The pH sensor 151 and two or more temperature sensors 153 are disposed at the place where the first working liquid 51 passes. For example, two pH sensors 151 are respectively disposed in the reservoir 104 and the plural Any one of the first fluid lines 191 in the fluid line 191 (such as the adjacent first fluid line 191) is used to sense the pH value of the working liquid in the reservoir 104 and the first fluid line 191 The pH value of the first working liquid 51 is used to generate a corresponding sensing signal and sent to the control unit 16, two temperature sensors 153 are respectively disposed at the first fluid line 191 adjacent to the first liquid outlet 12 A second fluid line 192 adjacent to the second liquid outlet 14 is used to sense the temperature of the low-temperature first working liquid 51 and the high-temperature second working liquid 52, respectively. In an embodiment, referring to FIG. 2, the heat exchange unit 10 is provided with a second pump 103, the second pump 103 is connected in parallel or in series with the first pump 102, and the first and second pumps 102 , 103 can be used as a backup for each other, so when one of the first and second pumps 102, 103 is damaged, the other pump will continue to drive the first working fluid 51 to achieve the backup function And the effect of driving the first working fluid 51 without interrupting the operation. In another embodiment, the liquid reservoir 104 is provided with a filter (not shown), the filter is used to filter and isolate impurities or the first working liquid 51 after cooling by the heat exchanger 101 Foreign substances, allowing impurities or foreign substances in the first working liquid 51 to remain in the reservoir 104, so that the first pump 102 drives the first working liquid 51 filtered by the filter in the reservoir 104 through the first outlet The liquid port 12 is discharged into the cabinet 60, so as to effectively keep the working liquid water quality clean and improve the heat transfer efficiency. Referring to FIG. 3, the control unit 16 connects the sensing unit 15 and the first pump 102. The control unit 16 is represented as a programmable logic controller (PLC) in this embodiment, but it is not Limited to this, in specific implementation, it may also be a digital signal controller (DSC) or a digital signal processor (DSP) or a microcontroller (MCU). The control unit 16 compares the sensing signal with a preset pH value range to generate a comparison result, and sends it to an external interface 30, which is represented as a monitoring system in this embodiment. The external interface 30 is connected to the control unit 16 by wireless transmission or wired transmission to receive the comparison result transmitted by the control unit 16. The preset pH range can be set between PH1~PH14, for example, it is preferably set between PH5~PH6.5. In one embodiment, the external interface 30 may also be a display, a light-emitting element group, a smart mobile device, or a speaker, and display information, issue a reminder sound (or alert sound), or emit a reminder light source through the external interface 30 ( Or warning light source), so that the user can instantly know the operation of the liquid cooling system 1. Therefore, when the control unit 16 compares a pH value (such as PH7) of the sensing signal with a first preset pH value (such as PH6.5) in the preset pH range, if Comparing the pH value of the sensing signal (such as PH7) to be greater than the first preset pH value (such as PH6.5) to generate the comparison result as a safe state, so that the external interface 30 according to the The comparison result transmitted by the control unit 16 is displayed through a display (not shown), so that the user can know from the comparison result information displayed on the display that the current water quality pH value in the liquid cooling system 1 is safe State, to achieve instant monitoring of water quality. When the control unit 16 is based on the pH value of the sensing signal and the first preset pH value (such as PH6.5) and a second preset pH value (such as PH6.0) for comparison, if the pH value of the sensing signal (eg PH6.3) is less than the first preset pH value (eg PH6.5) and greater than the second preset acid The base value (eg PH6.0) to generate the comparison result is a first alert state (eg yellow alert state), so that the external interface 30 displays the comparison result transmitted by the control unit 16 through the display, allowing The user can know from the comparison result information displayed on the display that the current water pH value in the liquid cooling system 1 is in the first alert state. When the control unit 16 is based on the pH value (such as PH5.5) of the sensing signal and the second preset pH value (such as PH6.0) and a third preset value in the preset pH range When comparing the pH value (such as PH5.0), if the pH value (such as PH5.5) of the sensing signal is less than the second preset pH value (such as PH6.0) and Greater than the third preset pH value (such as PH5.0) to generate the comparison result as a second alert state (such as red alert state), so that the external interface 30 according to the comparison result sent by the control unit 16 It is displayed through the display so that the user can know from the comparison result information displayed on the display that the current water pH value in the liquid cooling system 1 is in the second alert state. When the control unit 16 compares the pH value (such as PH4.9) of the sensing signal with the third preset pH value (such as PH5.0) in the preset pH range, if Comparing the pH value of the sensing signal (such as PH4.9) to be less than the third preset pH value (such as PH5.0) to generate the comparison result as a shutdown state, so that the external interface 30 While the comparison result transmitted by the control unit 16 is displayed through the display, the external interface 30 sends a shutdown signal to the control unit 16 of the liquid cooling system 1, so that the control unit 16 controls the A pump 102 stops operating, so that the user can know from the comparison result information displayed on the display that the current water pH value in the liquid cooling system 1 is in a stopped state. In one embodiment, the cabinet 60 and the external water supply device 40 are, for example, ice water hosts, which can be connected to two liquid-cooled heat-dissipation systems 1, one of which is used as a backup. When the liquid-cooled heat-dissipation system 1 is currently in operation When the shutdown signal from the external interface 30 is received and the operation is stopped, the external interface 30 sends a start signal to control the other liquid-cooled heat dissipation system 1 to start operation, so as to continue to circulate and cool the IT equipment of the cabinet 60 by water cooling. In another embodiment, in addition to displaying the received comparison result information through the display, the external interface 30 can also send a liquid cooling system corresponding to the dedicated computer room by means of SMS, email, APP message or communication software. 1. Operation information (such as comparison result information) is sent to a smart mobile device (such as a mobile phone or tablet) of a remote user, so that the user can instantly understand the operation of the liquid cooling system 1 of the cabinet 60 in each computer room. This creation uses the liquid cooling system 1 to exchange heat from liquid to liquid, and can automatically monitor the operation of the liquid cooling system 1 (including automatic monitoring of water pH) and the function of automatically sending reminders or warning messages. Therefore, it can be called an intelligent liquid-to-liquid heat exchange system (LTLCDU). In one embodiment, referring to FIG. 3A, the second liquid inlet 13 and the second liquid outlet 14, the second working liquid 52, the second fluid line 192, and the external water supply device 40 of the liquid cooling system 1 are created. If the ice water host is omitted, replace the heat exchanger 101 of the liquid cooling system 1 with a fan group with multiple fans on the side corresponding to the first liquid inlet 101 (or on the other side of the heat exchanger 101) The 70 series is connected to the corresponding control unit 16, and through the heat exchanger 101 (such as the first high-temperature first working liquid 51 of the first liquid inlet 11) and the fan group 70 forcibly discharge cold air for heat exchange to make the high temperature first The heat of the working liquid 51 is taken away to cool down (or cool down) to become a low temperature. The first working liquid 51 flows into the reservoir 104 for storage, and then passes through the first pump 102 to cool the first low temperature in the reservoir 104. The working fluid 51 is discharged out of the first liquid outlet 12 into the cabinet 60 and continuously circulates to radiate heat. Therefore, this creation uses the liquid-cooled heat dissipation system 1 to exchange heat with the liquid, and can automatically monitor the operation of the liquid-cooled heat dissipation system 1 and can automatically send reminders or warning messages, so it can be called a smart liquid pair Gas-type heat exchange system (LTACDU). In addition, the liquid cooling system 1 further includes a power supply unit 17 and a flow control unit 18, the power supply unit 17 is electrically connected to the control unit 16, the sensing unit 15, the flow control unit 18 and the first pump 102, used to provide power supply, the control unit 16 is electrically connected to the flow control unit 18, the flow control unit 18 is disposed in a suitable position in the liquid cooling system 1 for controlling the flow in the plurality of first fluid lines 191 The flow rate of the first working liquid 51, the flow control unit 18 is provided with at least one water control valve 181, the water control valve 181 is provided in this embodiment adjacent to the second fluid inlet 13 of the second fluid line 192, but Not limited to this, the creation does not limit the position of the water control valve 181, in other embodiments, the water control valve 181 may be disposed adjacent to the first liquid inlet 11 (or the first liquid outlet 12) at the first fluid line 191. Therefore, the user can receive the temperature sensing signal sent by the control unit 16 according to the external interface 30, and the measured temperature value is displayed by the display, so that the user can transmit a control signal to the time through the external interface 30 in a timely manner. The control unit 16 controls the water control valve 181 to control the water flow rate of the second liquid inlet 13 according to the control signal. Therefore, through the design of the liquid-cooled heat dissipation system 1, the functions of monitoring and warning of water quality and alkalinity are effectively achieved, and the effects of controlling the flow of working fluid, automatic water replenishment and monitoring system pressure are also effectively achieved. Please refer to FIG. 4 for a block schematic diagram of a liquid-cooled heat dissipation system of the second embodiment of the creation; FIG. 5 for a block schematic diagram of an implementation state of the liquid-cooled heat dissipation system of the second embodiment of the creation. The structure, connection relationship and function of this embodiment are substantially the same as the structure, connection relationship and function of the foregoing first embodiment, and will not be repeated here. The difference between the two is that the sensing unit 15 is provided with at least A pressure sensor 152, which is disposed at the place where the working fluid (such as the first and second working fluids 51, 52) passes to measure the pressure in the pipeline 193 in the liquid cooling system 1, for example The pressure sensor 152 is used to sense the first liquid inlet 11 (or second liquid inlet 13) and the first liquid outlet 12 (or second liquid outlet 14) and the plurality of first fluid lines At least one of 191 (or the second fluid line 192) obtains a pressure sensing signal, and in this embodiment, the pressure sensor 152 is two pressure sensors 152 respectively disposed adjacent to the second liquid inlet The second fluid line 192 corresponding to the port 13 and the second fluid line 192 adjacent to the second liquid outlet 14 are provided to measure the pressure of the low-temperature second working liquid 52 entering the second liquid inlet 13 The value and the pressure value of the high-temperature second working liquid 52 discharged from the second liquid outlet 14 are measured and transmitted to the control unit 16, so that the control unit 16 transmits the received pressure value to the external interface 30 (such as a monitoring system) ) Is displayed so that the user can adjust or control the operation in the liquid cooling system 1. In addition, the liquid cooling system 1 further includes a water replenishment unit 20. The control unit 16 is electrically connected to the water replenishment unit 20. The water replenishment unit 20 is in phase with one of the first fluid lines 191 corresponding to the plurality of first fluid lines 191. Then, the water replenishing unit 20 is used to provide supplementary cooling fluid (ie, the first working fluid 51). When at least one water level sensor 154 provided in the reservoir 104 senses that the water level inside the reservoir 104 is lower than the set water volume, the water level sensor 154 sends a water level sensing signal to the control Unit 16, the control unit 16 controls a water control valve (not shown) on the water replenishment unit 20 to open, and the water replenishment unit 20 performs water replenishment (such as replenishing coolant) until the water level sensor 154 detects The control unit 16 will control the water control valve on the water replenishment unit 20 to close to stop the water replenishment when the water level inside the reservoir 104 has been replenished to the set amount of water, so as to achieve the effect of automatic water replenishment. In an embodiment, the water replenishment unit 20 may be disposed at an appropriate position in the liquid-cooled heat-dissipation system 1 to replenish the liquid-cooled heat-dissipation system 1 with the first working liquid 51 in time. The reservoir 104 is connected to the reservoir 104 through a pipeline (not shown) for directly replenishing the reservoir 104 with water.

1‧‧‧Liquid cooling system 10‧‧‧Heat exchange unit 101‧‧‧ heat exchanger 102, 103‧‧‧ First and second pumps 104‧‧‧Reservoir 11.13‧‧‧First and second liquid inlet 12, 14‧‧‧ First and second liquid outlet 15‧‧‧sensing unit 151‧‧‧pH sensor 152‧‧‧pressure sensor 153‧‧‧Temperature sensor 154‧‧‧Water level sensor 16‧‧‧Control unit 17‧‧‧Power supply unit 18‧‧‧Flow control unit 181‧‧‧Water control valve 191, 192‧‧‧ Second and second fluid lines 20‧‧‧Water supply unit 30‧‧‧External interface 40‧‧‧External water supply equipment 401‧‧‧ water inlet 402‧‧‧Water outlet 51‧‧‧First working liquid 52‧‧‧Second working fluid 60‧‧‧Cabinet 601‧‧‧ Cabinet water inlet 602‧‧‧ Cabinet outlet 70‧‧‧Fan unit

Figure 1 is a block diagram of a liquid-cooled heat dissipation system of the first embodiment of the invention. FIG. 2 is a block diagram of a liquid-cooled heat dissipation system according to an embodiment of the first embodiment of the invention. FIG. 3 is a block diagram of an implementation of the liquid-cooled heat dissipation system of the first embodiment of the invention. FIG. 3A is a block diagram of an embodiment of a liquid-cooled heat dissipation system according to an embodiment of the first embodiment of the invention. FIG. 4 is a block diagram of a liquid-cooled heat dissipation system according to the second embodiment of the invention. FIG. 5 is a block diagram of an implementation of the liquid cooling system of the second embodiment of the invention.

1‧‧‧Liquid cooling system

10‧‧‧Heat exchange unit

101‧‧‧ heat exchanger

102‧‧‧First pump

104‧‧‧Reservoir

11.13‧‧‧First and second liquid inlet

12, 14‧‧‧ First and second liquid outlet

15‧‧‧sensing unit

151‧‧‧pH sensor

153‧‧‧Temperature sensor

16‧‧‧Control unit

17‧‧‧Power supply unit

18‧‧‧Flow control unit

181‧‧‧Water control valve

191, 192‧‧‧ First and second fluid lines

Claims (14)

A liquid-cooled heat dissipation system with water quality monitoring includes: A first liquid inlet; A first liquid outlet; A heat exchange unit is provided with a heat exchanger communicating with the first liquid inlet and a first pump communicating with the first liquid outlet and the heat exchanger, the first pump is used to drive the heat exchange A first working liquid after heat exchange in the device; A sensing unit is provided with at least one pH sensor. The pH sensor is located at the passage of the first working liquid for sensing a pH value of the first working liquid and generating A sensing signal corresponding to the pH value; and A control unit is connected to the sensing unit and the first pump. The control unit compares the sensing signal with a preset pH range to generate a comparison result and sends it to an external interface . The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent application scope, wherein the heat exchange unit is provided with a liquid reservoir containing the first working liquid, and the liquid reservoir is respectively connected to the heat exchanger and the first A pump, the first outlet and the liquid inlet are respectively connected and communicated with the first pump and the heat exchanger through a plurality of first fluid lines, and the pH sensor is provided in the storage liquid Or any one of the plurality of first fluid lines. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent application scope, wherein the heat exchange unit is provided with a second pump, which is connected in parallel or in series with the first pump. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent application scope further includes a power supply unit electrically connected to the control unit, the sensing unit and the first pump for Provide power supply. The liquid cooling system with water quality monitoring as described in item 2 of the patent application scope further includes a flow control unit and a water replenishment unit. The control unit is connected to the flow control unit and the water replenishment unit respectively. The flow control unit is used to The flow rate of the first working liquid flowing in the plurality of first fluid lines is controlled, and the water replenishing unit is connected to one of the first fluid lines corresponding to the plurality of first fluid lines to provide supplemental the first working liquid. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent scope, wherein the sensing unit is provided with at least one pressure sensor, and the pressure sensor is used to sense the first liquid inlet and the first At least one of a liquid outlet and the plurality of first fluid lines obtains a pressure sensing signal. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent scope, wherein when the control unit is based on a pH value of the sensing signal and a first preset acid in the preset pH range When the base value is compared, if the pH value of the sensed signal is greater than the first preset pH value to generate the comparison result as a safe state, when the control unit is based on the sensed signal Comparing the pH value with the first preset pH value and a second preset pH value in the preset pH value range, if the pH value of the sensing signal is less than The first preset pH value is greater than the second preset pH value to generate the comparison result as a first alert state. The liquid-cooled heat dissipation system with water quality monitoring as described in item 7 of the patent scope, wherein when the control unit is based on the pH value of the sensing signal and the second preset acid in the preset pH range When comparing the base value with a third preset pH value, if the pH value of the sensed signal is less than the second preset pH value and greater than the third preset pH value, The comparison result is a second alert state. When the control unit compares the pH value of the sensing signal with the third preset pH value in the preset pH range, if the comparison The pH value of the sensing signal is less than the third preset pH value to generate the comparison result as a shutdown state. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent scope, wherein the external interface is a monitoring system, a display, a light emitting element group, a smart mobile device or a speaker. The liquid cooling system with water quality monitoring as described in item 1 of the patent application scope, wherein the external interface is connected to the control unit through wireless transmission or wired transmission. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent scope, wherein the control unit is a programmable controller or a digital signal controller or a digital signal processor or a microcontroller. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent scope, wherein the heat exchanger is a plate heat exchanger. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent scope includes a second liquid inlet and a second liquid outlet. The heat exchanger passes through a plurality of second fluid lines and corresponds to the second The liquid inlet and the liquid inlet are connected and communicated. The second liquid inlet and the liquid inlet are connected to an external water supply device through the plurality of second fluid lines. The external water supply device is used to provide a second working liquid. The liquid-cooled heat dissipation system with water quality monitoring as described in item 1 of the patent application scope, wherein the side of the heat exchanger corresponding to the first liquid inlet is docked with a fan group, and the fan group is connected to the control unit.

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