Cooling system using double fluid phase change

Abstract

A cooling system using phase change of working fluid, comprising at least one chamber, a fluid injection device, a vacuum device and a container. The container is filled with coolant, the chamber is arranged in the container, and the heat source device and the chamber are immersed in the coolant in the container. The chamber has an inlet and an outlet, the fluid injection device can deliver working fluid into the chamber through the inlet, and the vacuum device can draw vacuum in the chamber through the outlet when activated, so that a negative pressure is formed in the chamber, the boiling point of the working fluid in the chamber is lowered, and the working fluid is accelerated to boil and vaporize. The working fluid in the chamber changes phase, and the working fluid changes from liquid phase to gaseous phase, can absorb a large amount of heat, and can provide a cooling effect for the heat source device. The heat source device is immersed in the coolant, and the surface of the heat source device can also use the coolant in the container to change phase, and the coolant changes from liquid phase to gaseous phase, can absorb a large amount of heat, and can provide a cooling effect for the heat source device.

Description

Technical Field

[0001] This utility model relates to a cooling system that utilizes a two-fluid phase change, and more particularly to a cooling system for heat source devices that can rapidly absorb heat energy and assist in heat dissipation using a two-fluid phase change. Background Technology

[0002] Electronic devices and machinery typically generate high temperatures during operation, so manufacturers usually install cooling systems to assist in heat dissipation. For example, heat pipes are widely used for heat dissipation, utilizing the evaporation and condensation of internal coolant to achieve rapid temperature equalization. However, existing cooling systems cannot remove high temperatures (energy) more quickly, and their cooling effect is limited. Utility Model Content

[0003] The technical problem to be solved by this invention is to provide a cooling system that applies a two-fluid phase change to address the shortcomings of the prior art, which can provide optional cooling and heat dissipation effects.

[0004] One embodiment of this utility model discloses a cooling system utilizing a two-fluid phase change, comprising: at least one cavity, wherein a chamber is provided within the cavity, the cavity having an inlet and an outlet, the inlet and the outlet being respectively connected to the chamber; a fluid injection device connected to the inlet of the cavity, the fluid injection device being able to deliver working fluid into the chamber through the inlet; a vacuum device connected to the outlet of the cavity, the vacuum device being electrically connected to a control unit, and the operation of the vacuum device being controlled by the control unit, wherein when the vacuum device is started, it can evacuate the chamber through the outlet of the cavity, thereby reducing the pressure in the chamber and lowering the boiling point of the working fluid in the chamber; and a container containing a coolant, the at least one cavity being disposed within the container, at least one heat source device and all or part of the at least one cavity being immersed in the coolant, the heat source device being able to utilize the coolant to generate a phase change, thereby providing a cooling effect to the heat source device.

[0005] Optionally, the inlet of the cavity is connected to a control valve, which is electrically connected to the control unit and can control the injection volume of the working fluid.

[0006] Optionally, the cavity is equipped with multiple thermometers, which are electrically connected to the control unit. The multiple thermometers are respectively located on the inner and outer sides of the cavity and can be used to detect the internal and external temperatures of the cavity. The required fluid volume and pressure of the working fluid can be calculated using the temperature difference between the internal and external temperatures of the cavity, thereby adjusting the temperature.

[0007] Optionally, the cavity is provided with at least one thermometer, which is electrically connected to the control unit. The thermometer can be used to detect the temperature of the cavity for temperature control.

[0008] Optionally, the fluid injection device includes a heat exchanger, a water tank, and a delivery pump. The heat exchanger is connected to the vacuum device, the water tank is connected to the heat exchanger, and the delivery pump is connected between the water tank and the inlet of the cavity. The working fluid drawn out through the outlet of the cavity can be delivered to the heat exchanger through the vacuum device. The heat exchanger can condense the vapor discharged from the vacuum device into liquid working fluid, then deliver the liquid working fluid to the water tank for storage, and finally deliver the liquid working fluid to the inlet of the cavity through the delivery pump.

[0009] Optionally, the cavity is provided with multiple heat dissipation fins.

[0010] Optionally, the container is provided with at least one bubble elimination device, which can be used to eliminate bubbles in the coolant.

[0011] Optionally, multiple cavities and multiple heat source devices are provided, with the multiple cavities spaced apart and the multiple heat source devices spaced apart, and the multiple cavities and multiple heat source devices are arranged alternately.

[0012] Optionally, the chamber is provided with at least one pressure gauge, which is electrically connected to the control unit and can be used to detect the pressure in the chamber.

[0013] Optionally, the container is a closed container device.

[0014] Optionally, the chamber is provided with at least one level gauge, which is electrically connected to the control unit and can be used to detect the level of the working fluid in the chamber.

[0015] Optionally, the cavity is provided with a porous material.

[0016] In summary, the beneficial effects of this utility model are as follows: The cooling system utilizing a two-fluid phase change provided by this utility model includes at least one cavity, a fluid injection device, a vacuum device, and a container. The cavity contains a chamber with an inlet and an outlet, both of which are connected to the chamber. The fluid injection device is connected to the inlet of the cavity and can deliver working fluid into the chamber through the inlet. The vacuum device is connected to the outlet of the cavity and is electrically connected to a control unit, allowing the control unit to control the operation of the vacuum device. When the vacuum device is activated, it can evacuate the chamber through the outlet, thereby reducing the pressure within the chamber. This lowers the boiling point of the working fluid within the chamber, accelerating its vaporization. The working fluid undergoes a phase change, transforming from a liquid phase to a gaseous phase, absorbing a large amount of heat to provide cooling and heat dissipation for the heat source device. The container contains coolant, and a cavity is located within the container. The heat source device and the cavity are wholly or partially immersed in the coolant, allowing the coolant in contact with the surface of the heat source device to vaporize. The heat source device utilizes the coolant to undergo a phase change, transforming from a liquid to a gaseous phase, absorbing a large amount of heat and thus providing cooling and heat dissipation to the heat source device. This provides a cooling function through phase changes in both fluids, significantly improving the cooling and heat dissipation effect. If the coolant within the container is sealed, it does not require circulation, is not prone to leakage, and is not lost.

[0017] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings are provided for reference and illustration only and are not intended to limit this utility model. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a cooling system using a two-fluid phase change according to the first embodiment of this utility model.

[0019] Figure 2 This is a schematic diagram of the cavity in the first embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of a cooling system using a two-fluid phase change according to the second embodiment of this utility model.

[0021] Figure 4 This is a schematic diagram of a cooling system using a two-fluid phase change according to the third embodiment of this utility model.

[0022] Figure 5 This is a schematic diagram of a cooling system using a two-fluid phase change according to the fourth embodiment of this utility model. Detailed Implementation

[0023] [Example]

[0024] Please see Figure 1 and Figure 2 This utility model provides a cooling system utilizing a two-fluid phase change mechanism for cooling at least one heat source device 100. One or more heat source devices 100 may be provided; this embodiment discloses the use of multiple heat source devices 100. The cooling system disclosed in this embodiment is a fully closed-loop refrigerant system, but this is not limited to it; for example, it can also be a semi-closed or fully open refrigerant system. The refrigerant is water, for example, but this is not limited to it. The cooling system utilizing a two-fluid phase change mechanism includes at least one cavity 1, a fluid injection device 2, a vacuum device 3, and a container 10.

[0025] The shape and structure of the container 10 are not limited. The container 10 contains a coolant 101, which is a non-conductive coolant. In this embodiment, the container 10 has a container body 102 and a cover 103. One side (top side) of the container body 102 is open. The cover 103 is detachably disposed on one side (top side) of the container body 102. The cover 103 covers the container body 102, so that the container 10 forms a sealed container device.

[0026] One or more cavities 1 may be provided. This embodiment discloses the provision of multiple cavities 1, which are disposed within a container 10. The heat source device 100 and all or part of the cavities 1 are immersed in the coolant 101 within the container 10. In this embodiment, the heat source device 100 and the cavities 1 are completely immersed in the coolant 101 within the container 10. The cavity 1 is a hollow body, and a chamber 11 is provided inside the cavity 1. The cavity 1 has an inlet 12 and an outlet 13, which are respectively connected to the chamber 11. Working fluid 14 can be input into the chamber 11 through the inlet 12 and output through the outlet 13. The working fluid 14 can also be regarded as a coolant. The cavity 1 is an evaporator. The cavity 1 can contact or be close to the heat source device 100, so that the high temperature energy of the heat source device 100 can be transferred to the cavity 1. The heat source device 100 is located outside the cavity 1. The heat source device 100 is not limited and can be an electronic device or machine equipment that requires cooling. The number of inlets 12 and outlets 13 is not limited. For example, two or three or more inlets 12 and outlets 13 can be provided.

[0027] The fluid injection device 2 is connected to the inlet 12 of the cavity 1. The fluid injection device 2 can deliver working fluid 14 into the cavity 11 through the inlet 12. The fluid injection device 2 can deliver the working fluid 14 in the form of water mist or liquid into the cavity 11, and the state of the working fluid 14 is not limited. The vacuum device 3 includes a vacuum pump, etc. The vacuum device 3 is connected to the outlet 13 of the cavity 1. The vacuum device 3 is electrically connected to a control unit 4, which can control the operation of the vacuum device 3, such as controlling its on / off state and rotation speed. When the vacuum device 3 is started, it can evacuate the cavity 11 through the outlet 13, causing the pressure inside the cavity 11 to decrease. This lowers the boiling point of the working fluid 14 inside the cavity 11, accelerating its vaporization, such as boiling vaporization or non-boiling vaporization. The working fluid 14 within chamber 11 undergoes a phase change, transforming from a liquid to a gaseous phase. This process absorbs a significant amount of heat, achieving the purpose of phase change and providing cooling to the coolant 101 within container 10. This, in turn, provides cooling and heat dissipation to the heat source device 100. Furthermore, the boiling point of the working fluid 14 is controllable and adjustable, allowing for temperature adjustments. According to the Clausius-Clapeyrone equation, the relationship between the boiling point temperature and vapor pressure of a single-component liquid is dP / dT = L / T. V, where dP / dT is the rate of change of pressure with temperature, L is the latent heat, and T is the phase equilibrium temperature. V represents the specific volume change during the phase transition, so the boiling point temperature can be controlled by adjusting the pressure.

[0028] The working fluid 14 extracted through the outlet 13 of the cavity 1 can flow back to the cavity 1 via the vacuum device 3 and the fluid injection device 2. The structure of the fluid injection device 2 is not limited. In this embodiment, the fluid injection device 2 may include a heat exchanger 21, a water tank 22, and a delivery pump 23. The heat exchanger 21 is connected to the vacuum device 3, the water tank 22 is connected to the heat exchanger 21, and the delivery pump 23 is connected between the water tank 22 and the inlet 12 of the cavity 1. The working fluid 14 extracted through the outlet 13 of the cavity 1 can be delivered to the heat exchanger 21 via the vacuum device 3. The heat exchanger 21 can condense the vapor discharged from the vacuum device 3 into liquid working fluid 14, and then deliver the liquid working fluid 14 to the water tank 22 for storage. Then, the liquid working fluid 14 can be delivered to the inlet 12 of the cavity 1 via the delivery pump 23. The inlet 12 may be equipped with an atomizing head 24, which can deliver the working fluid 14 into the cavity 11 in the form of a water mist.

[0029] Each inlet 12 of the cavity 1 can also be connected to a control valve 5. The control valve 5 can be located between the delivery pump 23 and the inlet 12 of the cavity 1. The control valve 5 can be located inside or outside the container 10. The control valve 5 is electrically connected to the control unit 4. The control unit 4 can send control signals to control the control valve 5, so that the working fluid 14 delivered to the inlet 12 of the cavity 1 can be controlled. The control valve 5 can be an ON / OFF valve or a proportional valve, which can control the injection volume of the working fluid 14. The control unit 4 can control the opening or closing of the control valve 5. The control unit 4 can also control the operation of the vacuum device 3 to control the vacuum level and temperature inside the cavity 1.

[0030] In this embodiment, multiple cavities 1 and heat source devices 100 are provided. The multiple cavities 1 are arranged at intervals, and the multiple heat source devices 100 are arranged at intervals. The multiple cavities 1 and the multiple heat source devices 100 are arranged alternately, so as to provide optional cooling and heat dissipation effects.

[0031] In this embodiment, at least one pressure gauge 6 may be provided inside the chamber 11. The pressure gauge 6 is electrically connected to the control unit 4 and can be used to detect the pressure inside the chamber 11 for pressure control. At least one thermometer 7 may also be provided inside the cavity 1. The thermometer 7 is electrically connected to the control unit 4 and can be used to detect the temperature of the cavity 1 for temperature control. One or more thermometers 7 may be provided, and the thermometers 7 may be located inside or outside the cavity 1. When multiple thermometers 7 are provided (e.g., ...), ... Figure 5 As shown, multiple thermometers 7 can be respectively disposed inside and outside the cavity 1, so that they can be used to detect the internal and external temperatures of the cavity 1 for temperature control. Multiple thermometers 7 can detect the internal and external temperatures of the cavity 1, so that the required fluid volume and pressure of the working fluid 14 can be calculated by using the temperature difference between the internal and external temperatures of the cavity 1. The cavity 1 can be maintained at the target temperature or pressure by the control of the vacuum device 3 and the control valve 5, providing optional cooling and heat dissipation effects.

[0032] The heat source device 100 and the cavity 1 are immersed in the coolant 101 in the container 10. The surface of the heat source device 100 can also undergo a phase change using the coolant 101 in the container 10, causing the coolant 101 in contact with the surface of the heat source device 100 to vaporize. The coolant 101 changes from a liquid phase to a gaseous phase, which can absorb a large amount of heat and provide a cooling effect for the heat source device 100. Therefore, it can provide a cooling function in which two fluids undergo phase changes respectively, thereby greatly improving the cooling effect.

[0033] Also, please see Figure 3In this embodiment, the cavity 1 may also be provided with multiple heat dissipation fins 15. These multiple heat dissipation fins 15 may be provided only on the inner or outer side of the cavity 1, or simultaneously on both the inner and outer sides of the cavity 1. This embodiment discloses that the multiple heat dissipation fins 15 are provided on the outer side of the cavity 1. The multiple heat dissipation fins 15 can be used to increase the heat exchange area and improve the cooling effect. Additionally, at least one level gauge 9 may be provided inside the chamber 11. The level gauge 9 is electrically connected to the control unit 4 and can be used to detect the level of the working fluid 14 inside the chamber 11, thereby controlling and optimizing the maintenance of the working fluid 14 level inside the chamber 11. A porous material 16 may also be provided inside the chamber 11 to maximize the surface area and increase the heat exchange effect.

[0034] Also, please see Figure 4 In this embodiment, at least one bubble-removing device 8 may be provided inside the container 10. One or more bubble-removing devices 8 may be provided. The bubble-removing device 8 may be electrically connected to the control unit 4. The bubble-removing device 8 may be a stirrer, an electromagnetic vibrator, or an ultrasonic generator, etc., to remove bubbles using stirring, electromagnetic, or ultrasonic methods. Bubbles can hinder the contact between the coolant 101 and the heat source device 100, reducing heat conduction and lowering the cooling effect. This embodiment includes a bubble-removing device 8, which can be used to remove bubbles in the coolant 101, increasing the contact between the coolant 101 and the heat source device 100, thereby improving heat conduction and cooling effect.

[0035] Also, please see Figure 5 In this embodiment, the heat source device 100 and part of the cavity 1 are immersed in the coolant 101 within the container 10. The cavity 1 may also be provided with multiple heat dissipation fins 15; this embodiment discloses that multiple heat dissipation fins 15 are disposed on the inner side of the cavity 1. Multiple heat dissipation fins 15 can be used to increase the heat exchange area and improve the cooling effect. Fluid injection device 2 (e.g., Figure 1 As shown, the working fluid 14 can be supplied to the chamber 11 through the inlet 12. When the vacuum device 3 is activated, it can evacuate the chamber 11 through the outlet 13, causing the pressure inside the chamber 11 to drop. This lowers the boiling point of the working fluid 14 inside the chamber 11, accelerating its vaporization. The working fluid 14 undergoes a phase change, transforming from a liquid phase to a gaseous phase, absorbing a large amount of heat to provide cooling for the heat source device 100. In this embodiment, the surface of the heat source device 100 can undergo a phase change using the coolant 101 in the container 10, causing the coolant 101 in contact with the surface of the heat source device 100 to vaporize. The coolant 101 transforms from a liquid phase to a gaseous phase, absorbing a large amount of heat to provide cooling for the heat source device 100. Therefore, it provides a cooling function where two fluids undergo phase changes separately.

[0036] [Beneficial Effects of the Examples]

[0037] The beneficial effects of this utility model are as follows: The cooling system utilizing a two-fluid phase change provided by this utility model includes at least one cavity, a fluid injection device, a vacuum device, and a container. The cavity contains a chamber with an inlet and an outlet, both of which are connected to the chamber. The fluid injection device is connected to the inlet of the cavity and can deliver working fluid into the chamber through the inlet. The vacuum device is connected to the outlet of the cavity and is electrically connected to a control unit, allowing the control unit to control the operation of the vacuum device. When the vacuum device is activated, it evacuates the chamber through the outlet, reducing the pressure within the chamber and lowering the boiling point of the working fluid. This accelerates the vaporization of the working fluid, causing a phase change in the working fluid within the chamber, from a liquid phase to a gaseous phase. This process absorbs a large amount of heat, thus providing cooling and heat dissipation for the heat source device. The container contains coolant, and a cavity is located within the container. The heat source device and the cavity are wholly or partially immersed in the coolant, allowing the coolant in contact with the surface of the heat source device to vaporize. The heat source device utilizes the coolant to undergo a phase change, transforming from a liquid to a gaseous phase, absorbing a large amount of heat and thus providing cooling and heat dissipation to the heat source device. This provides a cooling function through phase changes in both fluids, significantly improving the cooling and heat dissipation effect. If the coolant within the container is sealed, it does not require circulation, is not prone to leakage, and is not lost.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of patent protection of this utility model. Therefore, all equivalent changes made based on the description and drawings of this utility model are similarly included within the scope of protection of this utility model and are hereby stated.

Claims

1. A cooling system utilizing a two-fluid phase change, characterized in that, include: At least one cavity, wherein a chamber is provided within the cavity, the cavity has an inlet and an outlet, and the inlet and the outlet are respectively connected to the chamber; A fluid injection device is connected to the inlet of the cavity, and the fluid injection device can deliver working fluid into the cavity through the inlet; A vacuum device is connected to the outlet of the cavity and electrically connected to a control unit, which can control the operation of the vacuum device. When the vacuum device is started, it can evacuate the cavity through the outlet of the cavity, thereby reducing the pressure in the cavity and lowering the boiling point of the working fluid in the cavity. as well as A container containing a coolant, at least one cavity disposed within the container, at least one heat source device and all or part of the at least one cavity being immersed in the coolant, the heat source device being able to utilize the coolant to generate a phase change, thereby providing a cooling effect to the heat source device.

2. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The inlet of the cavity is connected to a control valve, which is electrically connected to the control unit and can control the injection volume of the working fluid.

3. The cooling system employing a two-fluid phase change as described in claim 2, characterized in that, The cavity is equipped with multiple thermometers, which are electrically connected to the control unit. The multiple thermometers are respectively located on the inner and outer sides of the cavity and can be used to detect the internal and external temperatures of the cavity. The temperature difference between the internal and external temperatures of the cavity is used to calculate at least one of the required fluid volume and pressure of the working fluid, thereby adjusting the temperature.

4. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The cavity is equipped with at least one thermometer, which is electrically connected to the control unit. The thermometer can be used to detect the temperature of the cavity for temperature control.

5. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The fluid injection device includes a heat exchanger, a water tank, and a delivery pump. The heat exchanger is connected to the vacuum device, the water tank is connected to the heat exchanger, and the delivery pump is connected between the water tank and the inlet of the cavity. The working fluid drawn out through the outlet of the cavity can be delivered to the heat exchanger through the vacuum device. The heat exchanger can condense the vapor discharged from the vacuum device into liquid working fluid, then deliver the liquid working fluid to the water tank for storage, and finally deliver the liquid working fluid to the inlet of the cavity through the delivery pump.

6. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The cavity is equipped with multiple heat dissipation fins.

7. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The container is equipped with at least one bubble elimination device, which can be used to eliminate bubbles in the coolant.

8. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, Multiple cavities and multiple heat source devices are provided, with the multiple cavities spaced apart and the multiple heat source devices spaced apart, and the multiple cavities and multiple heat source devices are arranged alternately.

9. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The chamber is equipped with at least one pressure gauge, which is electrically connected to the control unit and can be used to detect the pressure inside the chamber.

10. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The container is a sealed container device.

11. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The chamber is equipped with at least one level gauge, which is electrically connected to the control unit and can be used to detect the level of the working fluid in the chamber.

12. The cooling system employing a two-fluid phase change as described in claim 1, characterized in that, The cavity is filled with a porous material.

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