Cooling system with adjustable boiling point of coolant and heating furnace

Abstract

A cooling system with an adjustable coolant boiling point is disclosed for cooling a heat source device. The system includes a cavity, a fluid injection system, a vacuum device, a control unit, and a control valve. The cavity has an inlet and an outlet. The fluid injection system delivers working fluid into the cavity through the inlet. The vacuum device is connected to the outlet of the cavity. When activated, the vacuum device creates a vacuum in the cavity through the outlet, resulting in a negative pressure that lowers the boiling point of the working fluid, accelerating its boiling and vaporization. This causes a phase change in the working fluid, transforming it from a liquid to a gaseous phase, absorbing a significant amount of heat to cool the heat source device. The vacuum device and control valve are electrically connected to the control unit, which controls them. This invention allows for controllable and adjustable boiling points of the working fluid, enabling temperature adjustments. The adjustable coolant boiling point cooling system can be used in the cooling zone of a heating furnace.

Description

[Technical Field]

[0001] This invention relates to a cooling system, and more particularly to a cooling system and heating furnace for cooling a heat source device, which can quickly absorb heat energy and assist in heat dissipation and has an adjustable coolant boiling point. [Previous Technology]

[0002] General electronic devices or machinery 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. Heat pipes can achieve a rapid temperature uniformity effect by utilizing the evaporation and condensation of internal coolant. However, existing cooling systems cannot quickly remove high temperatures, and their cooling effect is quite limited. [Summary of the Invention]

[0003] The technical problem to be solved by the present invention is to provide a cooling system and heating furnace with adjustable coolant boiling point to address the shortcomings of the prior art, which can provide better cooling and heat dissipation effect.

[0004] To solve the above-mentioned technical problems, the present invention provides a cooling system with an adjustable coolant boiling point, comprising: a cavity having a chamber, the cavity having an inlet and an outlet, the inlet and the outlet being respectively connected to the chamber; a fluid injection system connected to the inlet of the cavity, the fluid injection system being able to deliver a working fluid, which is a coolant, through the inlet to the chamber; a vacuum device connected to the outlet of the cavity; a control unit electrically connected to the control unit, the control unit being able to control the operation of the vacuum device, the vacuum device being able to evacuate the chamber through the outlet of the cavity when activated, thereby reducing the pressure in the chamber and lowering the boiling point of the working fluid in the chamber; and a control valve connected to the inlet of the cavity and electrically connected to the control unit, the control valve being able to control the injection volume of the working fluid, and in conjunction with the control of the vacuum device, being able to control the vacuum level and temperature in the cavity.

[0005] In order to solve the above-mentioned technical problems, the present invention also provides a heating furnace, comprising: a heating zone; a cooling zone, the cooling zone being disposed downstream of the heating zone; and a cooling system with an adjustable coolant boiling point, the cooling system with an adjustable coolant boiling point being disposed in the cooling zone, the cooling system with an adjustable coolant boiling point being used to provide cooling and heat dissipation effect to the cooling zone.

[0006] The beneficial effects of the present invention are as follows: the cooling system and heating furnace with adjustable coolant boiling point provided by the present invention include a cavity, a fluid injection system, a vacuum device, a control unit, and a control valve. The cavity has a chamber with an inlet and an outlet. The fluid injection system is connected to the inlet of the cavity and can deliver working fluid into the cavity through the inlet. The vacuum device is connected to the outlet of the cavity and is electrically connected to the 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. This causes the working fluid to accelerate boiling and vaporization, resulting in a phase change in the working fluid in the cavity, where it changes 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 control valve is connected to the inlet of the cavity and is electrically connected to the control unit. The control valve can control the injection volume of the working fluid and, in conjunction with the control of the vacuum device, can control the vacuum level and temperature inside the cavity. This invention makes the boiling point of the working fluid controllable and adjustable, and can adjust the temperature to provide better cooling and heat dissipation.

[0007] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are for reference and illustration only and are not intended to limit the present invention.

Implementation Method

[0015] The following describes the embodiments disclosed in this invention through specific examples. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. In addition, the accompanying drawings of this invention are only simple illustrations and are not depictions based on actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention. In addition, the term "or" used herein should be interpreted as possibly including any combination of any one or more of the associated listed items, depending on the actual situation.

[0016] [Example]

[0017] Please refer to Figure 1. The present invention provides a cooling system with an adjustable coolant boiling point for cooling a heat source device. In this embodiment, the cooling system 100 with an adjustable coolant boiling point is a fully enclosed refrigerant system. The refrigerant is water as an example of the working fluid, but is not limited thereto. The cooling system 100 with an adjustable coolant boiling point includes a cavity 1, a fluid injection system 2, a vacuum device 3, a control unit 4, and a control valve 5.

[0018] 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 can be input into the chamber 11 through the inlet 12 and output through the outlet 13. The working fluid can also be regarded as a coolant. The cavity 1 is an evaporator. The cavity 1 can contact or be close to a heat source device, so that the high temperature energy of the heat source device can be transferred to the cavity 1. The heat source device can be set inside or outside the cavity 1. The heat source device is not limited. For example, the heat source device can be a heating furnace, or an electronic device or machine equipment that requires cooling and heat dissipation. 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.

[0019] The fluid injection system 2 is connected to the inlet 12 of the cavity 1. The fluid injection system 2 can deliver working fluid into the cavity 11 through the inlet 12. The fluid injection system 2 can deliver water mist or liquid working fluid into the cavity 11, and the state of the working fluid 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 the control unit 4, and the operation of the vacuum device 3 can be controlled by the control unit 4, such as controlling the switching and rotation speed of the vacuum device 3. When the vacuum device 3 is started, it can evacuate the cavity 11 through the outlet 13, so that the pressure in the cavity 11 decreases, and the boiling point of the working fluid in the cavity 11 decreases, so that the working fluid boils and vaporizes more quickly. The working fluid in the cavity 11 undergoes a phase change, changing from a liquid phase to a gaseous phase, which can absorb a large amount of heat to provide cooling and heat dissipation for the heat source device. According to the Clausius-Clapeyron 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, T is the phase equilibrium temperature, and ∆V is the change in specific volume during the phase transition. Therefore, the boiling point temperature can be controlled by adjusting the pressure.

[0020] The working fluid extracted through the outlet 13 of the cavity 1 can be returned to the cavity 1 via the vacuum device 3 and the fluid injection system 2. The structure of the fluid injection system 2 is not limited. In this embodiment, the fluid injection system 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 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, and then deliver the liquid working fluid to the water tank 22 for storage. Then, the liquid working fluid 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 into the cavity 11 in the form of a water mist.

[0021] The control valve 5 is connected to the inlet 12 of the cavity 1. The control valve 5 can be set between the delivery pump 23 and the inlet 12 of the cavity 1. The control valve 5 is electrically connected to the control unit 4. The control unit 4 can send a control signal to control the control valve 5 so that the working fluid 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 amount of the working fluid. The control unit 4 can control the opening or closing degree of the control valve 5. The control unit 4 can also control the operation of the vacuum device 3 to control the vacuum degree and temperature in the cavity 1.

[0022] In this embodiment, a pressure gauge 6 and a thermometer 7 may also be provided in the chamber 11. The pressure gauge 6 and the thermometer 7 are electrically connected to the control unit 4. The thermometer 7 can be used to detect the temperature in the chamber 11 for temperature control, and the pressure gauge 6 can be used to detect the pressure in the chamber 11 for pressure control. The control unit 4 is a main control system that can detect the pressure and temperature in the chamber 1 and maintain the target temperature or pressure in the chamber 1 through the control of the vacuum device 3 and the control valve 5.

[0023] Please refer to Figure 2. The cooling system 100 with adjustable coolant boiling point in this embodiment is a fully open refrigerant system. When water is used as the refrigerant, since water is a harmless substance, it can be directly discharged, so the heat exchanger can be omitted to reduce volume and cost. This embodiment is largely the same as the first embodiment described above. The main difference is that the working fluid (vapor) extracted through the outlet 13 of the cavity 1 can be directly discharged into the atmosphere through the vacuum device 3 without being recycled, so the heat exchanger 21 in the above embodiment is not required. The fluid injection system 2 in this embodiment includes a water tank 22 and a delivery pump 23. The water tank 22 can be used to add working fluid (such as water), and then the delivery pump 23 can be used to deliver the liquid working fluid to the inlet 12 of the cavity 1, so that the working fluid is delivered into the chamber 11. The water tank 22 may be equipped with a water injection valve 8 and a level gauge 9. The level gauge 9 can be used to detect the level of the working fluid in the water tank 22. When the level is too low, the working fluid can be added through the water injection valve 8.

[0024] Please refer to Figure 3. The cooling system 100 with adjustable coolant boiling point in this embodiment is a semi-open refrigerant system. This embodiment is largely the same as the first embodiment described above. In this embodiment, the fluid injection system 2 includes 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 extracted through the outlet 13 of the cavity 1 can be delivered to the heat exchanger 21 through the vacuum device 3. The heat exchanger 21 can condense the vapor discharged from the vacuum device 3 into liquid working fluid, and then deliver the liquid working fluid to the water tank 22 for storage. Then, the liquid working fluid can be delivered to the inlet 12 of the cavity 1 through the delivery pump 23. In this embodiment, a gas-liquid separator 10 is mainly set between the heat exchanger 21 and the water tank 22, which can directly discharge the vapor into the atmosphere. Therefore, a smaller heat exchanger 21 can be used. Only a portion of the steam discharged from the heat exchanger 21 condenses and is separated by the gas-liquid separator 10. The condensed working fluid flows into the water tank 22 for collection. The water tank 22 may also be equipped with a water injection valve 8 and a level gauge 9. The level gauge 9 can be used to detect the level of the working fluid in the water tank 22. When the level is too low, the working fluid can be added through the water injection valve 8.

[0025] Please refer to Figure 4. This embodiment discloses a heating furnace 200, which includes a heating zone 201 and a cooling zone 202. The heating zone 201 can heat the element to be heated by means of electric heating or the like. The cooling zone 202 is located downstream of the heating zone 201 and can be used to cool the element to be heated after it has been heated. The cooling system 100 with an adjustable coolant boiling point of the present invention is provided in the cooling zone 202. The cooling system 100 with an adjustable coolant boiling point can provide the cooling and heat dissipation effect of the cooling zone 202.

[0026] Please refer to Figure 5. This embodiment discloses a heating furnace 200, which includes a heating zone 201 and a cooling zone 202. The cooling zone 202 is located downstream of the heating zone 201 and can be used to cool the heated element. The cooling system 100 with an adjustable coolant boiling point is provided in the cooling zone 202, which can provide cooling and heat dissipation to the cooling zone 202. In this embodiment, the vacuum device 3 is mainly connected to the heating zone 201. Therefore, the vacuum device 3 can be used to evacuate the heating zone 201 of the heating furnace 200 before each heating is started, so that the amount of protective gas used when injecting protective gases such as nitrogen into the heating zone 201 of the heating furnace 200 can be reduced. A valve body 20 can also be provided between the vacuum device 3 and the heating zone 201 to open and close the vacuum device 3's operation of evacuating the heating zone 201 of the heating furnace 200.

[0027] Referring to Figures 6 and 7, the inlet 12 of the cavity 1 can also be a drip-type design, and the heat source device 300 is close to the inlet 12 of the cavity 1. When the fluid injection system 2 delivers working fluid from the inlet 12 into the cavity 11, the working fluid can drip onto or near the heat source device 300, thus bringing the working fluid closer to the heat source device 300 and providing a better cooling effect. In this embodiment, the heat source device 300 can be disposed inside the cavity 1.

[0028] The cooling system of the present invention with adjustable coolant boiling point can change the boiling point of the working fluid by changing the pressure in the chamber. Furthermore, there is no high-pressure section in the cooling system. The working fluid in the cooling system can exist in a liquid state at room temperature and can be condensed and recovered at atmospheric pressure. In contrast, refrigeration compression systems cannot use liquids that are liquid at room temperature and pressure (such as pure water with a boiling point greater than 25°C) as working fluids. Refrigeration compression systems operate as closed-loop refrigerant systems, while the cooling system of the present invention can operate in both closed and open systems. Refrigeration compression systems involve high-pressure (compression) condensation, while the cooling system of the present invention involves low-pressure (vacuum) evaporation.

[0029] The beneficial effects of the present invention are as follows: the cooling system and heating furnace with adjustable coolant boiling point provided by the present invention include a cavity, a fluid injection system, a vacuum device, a control unit, and a control valve. The cavity has a chamber with an inlet and an outlet. The fluid injection system is connected to the inlet of the cavity and can deliver working fluid into the cavity through the inlet. The vacuum device is connected to the outlet of the cavity and is electrically connected to the 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. This causes the working fluid to accelerate boiling and vaporization, resulting in a phase change in the working fluid in the cavity, where it changes from a liquid phase to a gaseous phase. This process absorbs a large amount of heat, thus providing a cooling effect for the heat source device. The control valve is connected to the inlet of the cavity and is electrically connected to the control unit. The control valve can control the injection volume of the working fluid and, in conjunction with the control of the vacuum device, can control the vacuum level and temperature inside the cavity. This invention makes the boiling point of the working fluid controllable and adjustable, and can adjust the temperature to provide better cooling and heat dissipation.

[0030] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention specification and drawings are included in the scope of the patent application of the present invention. [Simplified Explanation of the Diagram]

[0008] Figure 1 is a schematic diagram of a cooling system with adjustable coolant boiling point according to the first embodiment of the present invention.

[0009] Figure 2 is a schematic diagram of a cooling system with adjustable coolant boiling point according to the second embodiment of the present invention.

[0010] Figure 3 is a schematic diagram of a cooling system with adjustable coolant boiling point according to the third embodiment of the present invention.

[0011] Figure 4 is a schematic diagram of the heating furnace of the fourth embodiment of the present invention.

[0012] Figure 5 is a schematic diagram of the heating furnace of the fifth embodiment of the present invention.

[0013] Figure 6 is a schematic diagram of the cavity in the sixth embodiment of the present invention.

[0014] Figure 7 is a schematic diagram of the cavity in the seventh embodiment of the present invention.

Claims

1. A cooling system with an adjustable coolant boiling point, comprising: A cavity containing a chamber, the cavity having an inlet and an outlet, the inlet and the outlet respectively communicating with the chamber; a fluid injection system connected to the inlet of the cavity, the fluid injection system being able to deliver a working fluid, which is a coolant, from the inlet into the chamber; a vacuum device connected to the outlet of the cavity; and a control unit electrically connected to the vacuum device, the control unit being able to control the operation of the vacuum device, the vacuum device, when activated, being able to evacuate the chamber through the outlet of the cavity, thereby reducing the pressure within the chamber and lowering the boiling point of the working fluid within the chamber; The system includes a control valve connected to the inlet of the cavity and electrically connected to the control unit. The control valve controls the injection volume of the working fluid and, in conjunction with the control of the vacuum device, controls the vacuum level and temperature within the cavity. The inlet of the cavity is a drip-feed design, with a heat source device located near the inlet. This allows the working fluid to drip onto or near the heat source device when the fluid injection system delivers the working fluid from the inlet into the cavity.

2. The cooling system with adjustable coolant boiling point as claimed in claim 1, wherein the working fluid extracted through the outlet of the cavity can be directly discharged to the atmosphere via the vacuum device, or returned to the cavity via the vacuum device and the fluid injection system.

3. The cooling system with adjustable coolant boiling point as claimed in claim 1, wherein the fluid injection system comprises a heat exchanger, a water tank and a delivery pump, the heat exchanger being connected to the vacuum device, the water tank being connected to the heat exchanger, the delivery pump being connected between the water tank and the inlet of the cavity, wherein working fluid drawn out through the outlet of the cavity can be delivered to the heat exchanger via 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 deliver the liquid working fluid to the inlet of the cavity via the delivery pump.

4. The cooling system with adjustable coolant boiling point as described in claim 3, wherein the water tank is provided with a water injection valve and a level gauge, the level gauge being used to detect the level of the working fluid in the water tank, and when the level is too low, the working fluid can be added through the water injection valve.

5. The cooling system with adjustable coolant boiling point as described in claim 3, wherein a gas-liquid separator is provided between the heat exchanger and the water tank, which can directly discharge vapor into the atmosphere and separate the condensed working fluid through the gas-liquid separator, allowing it to flow into the water tank for collection.

6. The cooling system with adjustable coolant boiling point as claimed in claim 1, wherein a pressure gauge and a thermometer are provided in the chamber, the pressure gauge and the thermometer are electrically connected to the control unit, the thermometer is used to detect the temperature in the chamber, and the pressure gauge is used to detect the pressure in the chamber.

7. The cooling system with adjustable coolant boiling point as claimed in claim 1, wherein the fluid injection system includes a water tank and a delivery pump, the water tank being capable of adding working fluid and the delivery pump delivering liquid working fluid to the inlet of the cavity, thereby delivering the working fluid into the cavity.

8. The cooling system with adjustable coolant boiling point as described in claim 7, wherein the water tank is provided with a water injection valve and a level gauge, the level gauge being able to detect the level of working fluid in the water tank, and when the level is too low, the working fluid can be added through the water injection valve.

9. The cooling system with adjustable coolant boiling point as claimed in claim 1, wherein the control valve is an on / off valve or a proportional valve, and the control unit is capable of controlling the on / off state or opening degree of the control valve.

10. The cooling system with adjustable coolant boiling point as claimed in claim 1, wherein the inlet is provided with an atomizing head, through which the working fluid is delivered into the chamber in the form of a water mist.

11. A heating furnace, comprising: One heating zone; A cooling zone is located downstream of the heating zone; And a cooling system with an adjustable coolant boiling point as described in any of claims 1 to 10, the cooling system being disposed in the cooling zone, the cooling system being able to provide cooling and heat dissipation effects to the cooling zone.

12. The heating furnace as claimed in claim 11, wherein the vacuum device is connected to the heating zone and is capable of evacuating the heating zone using the vacuum device.

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