Spray cooling device based on color recognition

Abstract

The utility model relates to a spray cooling device based on color identification, which comprises a cover body, a heat source, a cooling circulation system, a temperature sensor, a color identification sensor and a control unit, the cover body covers the outer side of the middle upper part of the heat source, the cooling circulation system comprises a cooling liquid cylinder filled with cooling liquid, and a water outlet pipe of the cooling liquid cylinder is connected with a water pump; an outlet of the water pump is connected with a water spraying pipe and an overflow pipe in two ways, an electromagnetic valve is arranged on the water spraying pipe, a nozzle is arranged at the front end of the water spraying pipe and extends into the cover body to directly face the heat source, and an overflow valve is arranged on the overflow pipe which is connected to a water inlet pipe of the cooling liquid cylinder; a water outlet is formed in the bottom of the cover body and connected to a water inlet pipe of the cooling liquid cylinder through a water drainage pipe. The temperature sensor is arranged in the heat source, the color recognition sensor is arranged above the heat source in the cover body, and the control unit is electrically connected with the temperature sensor, the color recognition sensor and the electromagnetic valve. The device is beneficial to timely and reliable spray cooling, and the use of cooling liquid is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment cooling, in particular to a spray cooling device based on color recognition. Background Art

[0002] Electronic equipment failure is closely related to high temperature. When the temperature exceeds a certain temperature, the failure rate of electronic equipment increases exponentially. Therefore, the long-term stable and reliable operation of some electronic equipment requires efficient cooling measures to eliminate various problems caused by overheating. Spray cooling requires less coolant, has stronger heat dissipation capacity, better temperature controllability and temperature uniformity.

[0003] Most of the common spray cooling systems on the market install thermocouples on the side or below (delete) of the cooling target to measure the temperature, which causes the temperature of the target surface to be inconsistent with the test temperature, and there is a lag in cooling. In addition, most spray cooling systems are continuous spraying, which requires a large amount of coolant and causes unnecessary waste. Summary of the invention

[0004] The utility model aims to provide a spray cooling device based on color recognition, which is conducive to timely and reliable spray cooling and reduces the use of cooling liquid.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a spray cooling device based on color recognition, comprising a cover body, a heat source, a cooling circulation system, a temperature sensor, a color recognition sensor and a control unit, wherein the cover body is arranged on the outer side of the upper middle part of the heat source, the cooling circulation system comprises a coolant cylinder filled with coolant, the water outlet pipe of the coolant cylinder is connected to a water pump, the water pump outlet is divided into two ways and respectively connected to a water spray pipe and an overflow pipe, an electromagnetic valve is arranged on the water spray pipe, a nozzle is arranged at the front end of the water spray pipe and extends into the cover body facing the heat source, an overflow valve is arranged on the overflow pipe, and the overflow pipe is connected to the water inlet pipe of the coolant cylinder; a drain port is opened at the bottom of the cover body, and the drain port is connected to the water inlet pipe of the coolant cylinder through a drain pipe; the temperature sensor is arranged in the heat source, the color recognition sensor is arranged above the heat source in the cover body, and the control unit is electrically connected to the temperature sensor, the color recognition sensor and the electromagnetic valve respectively.

[0006] Furthermore, the coolant is a colored solution, and its color can change with concentration.

[0007] Furthermore, the probe of the color recognition sensor is facing the surface of the heat source to detect the color change of the coolant on the surface of the heat source.

[0008] Furthermore, an exhaust fan is provided in the cover body for extracting the evaporated coolant in the cover body, the exhaust port of the exhaust fan is directly emptied or connected to the coolant cylinder through a condenser, and the exhaust fan is electrically connected to the control unit.

[0009] Furthermore, the temperature sensor is a thermocouple.

[0010] Furthermore, the overflow valve is a mechanical overflow valve.

[0011] Furthermore, two drainage ports are provided at the bottom of the cover body, and the two drainage ports are respectively connected to drainage pipes. The two drainage pipes and the overflow pipe are connected to the water inlet pipe of the coolant cylinder via a four-way interface.

[0012] Furthermore, the water pump is a high-pressure water pump with an outlet pressure of more than 3 MPa.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a spray cooling device based on color recognition, which combines color recognition with temperature detection to detect the temperature rise of the heat source, controls the intermittent operation of the spray cooling system by the color change during the evaporation of the coolant, and combines with temperature detection, which is more responsive than the traditional spray cooling system based on thermocouples, not only improving the reliability and safety of the system, but also effectively reducing the use of coolant because it does not require long-term continuous spray cooling. Therefore, the utility model has strong practicality and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a system implementation principle diagram of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the system structure of the embodiment of the utility model Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the system structure of the embodiment of the utility model Figure 2 ;

[0017] Figure 4 It is a cross-sectional view of the system structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] like Figure 1-4 As shown, this embodiment provides a spray cooling device based on color recognition, including a cover body 1, a heat source 2, a cooling circulation system, a temperature sensor 3, a color recognition sensor 4 and a control unit 5, wherein the cover body 1 is arranged on the outer side of the upper middle part of the heat source 2, and the cooling circulation system includes a coolant cylinder 6 containing a color-changing coolant 17, and the water outlet pipe of the coolant cylinder 6 is connected to a water pump 7, and the outlet of the water pump 7 is divided into two ways and connected to a water spray pipe 8 and an overflow pipe 9 respectively, and a solenoid valve 10 is provided on the water spray pipe, and the water spray pipe 8 A nozzle 11 is provided at the front end and extends into the cover body to face the heat source 2. An overflow valve 12 is provided on the overflow pipe, and the overflow pipe is connected to the water inlet pipe 13 of the coolant cylinder 6; a drain port 14 is provided at the bottom of the cover body 1, and the drain port 14 is connected to the water inlet pipe 13 of the coolant cylinder 6 through a drain pipe 15; the temperature sensor 3 is arranged in the heat source 2, the color recognition sensor 4 is arranged above the heat source 2 in the cover body 1, and the control unit 5 is electrically connected to the temperature sensor 3, the color recognition sensor 4 and the solenoid valve 10 respectively.

[0022] The coolant is a colored solution, and its color can change with the concentration, because the coolant needs to be heated and evaporated to change its color, which serves as the detection basis of the color recognition sensor.

[0023] The coolant can be selected according to the working temperature that the heat source needs to maintain. For example, when it needs to be maintained at 100-120 degrees Celsius, an aqueous solution of copper sulfate can be selected; when it needs to be maintained at 65-75 degrees Celsius, a methanol solution of copper sulfate can be selected.

[0024] The detection principle of copper sulfate aqueous solution is as follows: as the temperature of the heat source increases, the water solvent in the copper sulfate solution will evaporate, causing the color of the aqueous solution to darken. The color recognition sensor detects the color of the aqueous solution and converts it into a corresponding electrical signal and feeds it back to the control unit. The control unit compares the difference between the current coolant color and the initial coolant color with the set color difference threshold, and then controls the switching action of the solenoid valve.

[0025] In this embodiment, the cover body 1 is a sealed cover body made of glass or other transparent materials, and the cover body and the heat source are sealed.

[0026] In this embodiment, the probe of the color recognition sensor 4 is facing the surface of the heat source 2 to detect the color change of the coolant on the surface of the heat source. The temperature sensor 3 is a thermocouple.

[0027] In this embodiment, an exhaust fan 16 is provided in the housing 1 to remove the evaporated coolant in the housing 1. The exhaust port of the exhaust fan 16 can be directly emptied or connected to the coolant cylinder via a condenser (not shown). The exhaust fan 16 is electrically connected to the control unit 5. The exhaust fan 16 is always turned on after the system is started to remove the evaporated coolant. If it is not removed in time, it will affect the operation of the color recognition sensor.

[0028] In this embodiment, the overflow valve 12 is a mechanical overflow valve. The working principle of the overflow valve is as follows: after the coolant is extracted from the water pump 7, if the solenoid valve 10 is closed, the overflow valve 12 will open because the pipeline pressure reaches its opening pressure, and the water will flow out from one side of the overflow pipe 9. When the solenoid valve 10 is opened, the coolant flows out from the water spray pipe 8 and the nozzle 11, and the pressure on one side of the overflow valve 12 cannot reach the opening pressure of the overflow valve, causing the overflow valve 12 to remain closed.

[0029] In this embodiment, two drain ports 14 are provided at the bottom of the cover body 1, and the two drain ports 14 are respectively connected to drain pipes 15. The two drain pipes 15 and the overflow pipe 9 are connected to the water inlet pipe 13 of the coolant cylinder 6 via a four-way interface.

[0030] In this embodiment, the water pump is a high-pressure water pump with an outlet pressure of more than 3 MPa. If the pressure is too low, the atomization effect will be too poor.

[0031] The working process of the above-mentioned spray cooling device based on color recognition is as follows: select the coolant (such as copper sulfate aqueous solution) according to the working temperature maintained by the heat source and fill it into the coolant cylinder. Then, start the system. The color recognition sensor starts color detection, controls the temperature sensor to start continuous temperature measurement, the water pump is turned on, and then the heat source starts working. The control unit controls the solenoid valve to open and perform the first spray cooling. At this time, the overflow valve has not reached the opening pressure and is in a closed state. After the set time (such as 8s), the solenoid valve is closed. At this time, the overflow valve reaches the opening pressure, the overflow valve automatically opens, and the coolant flows to the overflow pipe. Since the coolant on the surface of the heat source gradually decreases in water during the evaporation process, the color of the coolant changes (becomes darker). When the color recognition sensor detects that the difference between the current coolant color and the initial coolant color reaches the color difference threshold, the control unit controls the solenoid valve to open again, performs spray cooling for a set time (8s), and flushes the coolant on the surface of the heat source. When the temperature of the heat source does not reach the temperature threshold, the process of step 4) is repeated continuously. However, if the temperature sensor detects that the temperature of the heat source reaches the temperature threshold, the control unit controls the solenoid valve to be normally open, continues to perform spray cooling, and triggers the alarm unit to sound an alarm and take other corresponding treatment measures.

[0032] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A spray cooling device based on color recognition, characterized in that: It includes a cover body, a heat source, a cooling circulation system, a temperature sensor, a color recognition sensor and a control unit. The cover body is arranged on the outer side of the upper middle part of the heat source. The cooling circulation system includes a coolant cylinder containing coolant. The water outlet pipe of the coolant cylinder is connected to a water pump. The water pump outlet is divided into two ways to connect a water spray pipe and an overflow pipe respectively. An electromagnetic valve is arranged on the water spray pipe. A nozzle is arranged at the front end of the water spray pipe and extends into the cover body to face the heat source. An overflow valve is arranged on the overflow pipe. The overflow pipe is connected to the water inlet pipe of the coolant cylinder. A drain port is opened at the bottom of the cover body, and the drain port is connected to the water inlet pipe of the coolant cylinder through a drain pipe. The temperature sensor is arranged in the heat source, and the color recognition sensor is arranged above the heat source in the cover body. The control unit is electrically connected to the temperature sensor, the color recognition sensor and the electromagnetic valve respectively. The coolant is a colored solution, and its color can change with the concentration; The probe of the color recognition sensor is facing the surface of the heat source to detect the color change of the coolant on the surface of the heat source.

2. The color recognition-based spray cooling device according to claim 1, characterized in that: An exhaust fan is arranged in the cover body for extracting the evaporated coolant in the cover body. The exhaust port of the exhaust fan is directly emptied or connected to the coolant cylinder through a condenser. The exhaust fan is electrically connected to the control unit.

3. The color recognition-based spray cooling device according to claim 1, characterized in that: The temperature sensor is a thermocouple.

4. The color recognition-based spray cooling device according to claim 1, characterized in that: The relief valve is a mechanical relief valve.

5. The color recognition-based spray cooling device according to claim 1, characterized in that: The bottom of the cover body is provided with two drainage ports, which are respectively connected to drainage pipes. The two drainage pipes and the overflow pipe are connected to the water inlet pipe of the coolant cylinder via a four-way interface.

6. The color recognition-based spray cooling device according to claim 1, characterized in that: The water pump has an outlet pressure of more than 3 MPa.

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