COOLING SYSTEM HAVING ADJUSTABLE COOLANT BOILING POINTS, HEATING FURNACE, AND COOLING SYSTEM USING PRESSURE CONTROL AND FLUID PHASE CHANGE

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This application claims the benefit of priority to Taiwan Patent Application No. 113128885, filed on Aug. 2, 2024. The entire content of the above identified application is incorporated herein by reference.

Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.

FIELD OF THE DISCLOSURE

The present disclosure relates to a cooling system, and more particularly to a cooling system having adjustable coolant boiling points, a heating furnace, and a cooling system using pressure control and fluid phase change, which can quickly absorb heat energy and assist in heat dissipation.

BACKGROUND OF THE DISCLOSURE

Since electronic devices or machineries reach high temperatures when in operation, manufacturers usually install cooling systems to help dissipate heat. For example, heat pipes have been widely used for heat dissipation and can use the evaporation and condensation of an internal coolant to achieve a quick temperature uniformity effect. However, existing cooling systems cannot accurately control a cooling temperature to quickly lower high temperatures (i.e., energy), such that their cooling effects are limited.

SUMMARY OF THE DISCLOSURE

In response to the above-referenced technical inadequacies, the present disclosure provides a cooling system having adjustable coolant boiling points, a heating furnace, and a cooling system using pressure control and fluid phase change to improve cooling and heat dissipation effects.

In order to solve the above-mentioned problems, one of the technical aspects adopted by the present disclosure is to provide a cooling system having adjustable coolant boiling points. The cooling system includes a cavity, a fluid injection system, a vacuum device, a control member, and a control valve. A chamber is disposed in the cavity, the cavity has an inlet and an outlet, and the inlet and the outlet are respectively connected to the chamber. The fluid injection system is connected to the inlet of the cavity, and the fluid injection system transports a working fluid into the chamber from the inlet, the working fluid being a coolant. The vacuum device is connected to the outlet of the cavity. The vacuum device is electrically connected to the control member, and an operation of the vacuum device is controlled by the control member. When the vacuum device is started, the chamber is evacuated through the outlet of the cavity, so that a pressure in the chamber is reduced, and a boiling point of the working fluid in the chamber is lowered. The control valve is connected to the inlet of the cavity and electrically connected to the control member. The control valve controls an injection amount of the working fluid, and controls a vacuum degree and a temperature in the cavity by cooperating with the control of the vacuum device.

In order to solve the above-mentioned problems, another one of the technical aspects adopted by the present disclosure is to provide a heating furnace. The heating furnace includes a heating zone, a cooling zone, and the cooling system having the adjustable coolant boiling points. The cooling zone is disposed at a downstream position of the heating zone. The cooling system is disposed in the cooling zone, and the cooling system provides cooling and heat dissipation effects for the cooling zone.

In order to solve the above-mentioned problems, yet another one of the technical aspects adopted by the present disclosure is to provide a cooling system using pressure control and fluid phase change. The cooling system includes a cavity, a fluid injection system, a vacuum device, at least one first temperature sensor, and at least one second temperature sensor. A chamber is disposed in the cavity, the cavity has an inlet and an outlet, and the inlet and the outlet are respectively connected to the chamber. The fluid injection system is connected to the inlet of the cavity, and the fluid injection system transports a working fluid into the chamber from the inlet. The vacuum device is connected to the outlet of the cavity. The vacuum device is electrically connected to a control member, and the operation of the vacuum device is controlled by the control member. When the vacuum device is started, the chamber is evacuated through the outlet of the cavity to reduce a pressure in the chamber, and lower a boiling point of the working fluid in the chamber. The at least one first temperature sensor is disposed inside the cavity, and the at least one second temperature sensor is disposed outside of the cavity. The at least one first temperature sensor and the at least one second temperature sensor are electrically connected to the control member, and the at least one first temperature sensor and the at least one second temperature sensor respectively detect temperatures inside and outside the cavity, and calculate at least one of a fluid volume and a pressure of the working fluid that is used by using a temperature difference inside and outside of the cavity, so that the temperatures inside and outside the cavity are changed and adjusted.

In order to solve the above-mentioned problems, yet another one of the technical aspects adopted by the present disclosure is to provide a cooling system using pressure control and fluid phase change. The cooling system includes a cavity, a fluid injection system, a vacuum device, and at least one temperature sensor. A chamber is disposed in the cavity, the cavity has an inlet and an outlet, and the inlet and the outlet are respectively connected to the chamber. The fluid injection system is connected to the inlet of the cavity, and the fluid injection system transports a working fluid into the chamber from the inlet. The vacuum device is connected to the outlet of the cavity. The vacuum device is electrically connected to a control member, and the operation of the vacuum device is controlled by the control member. When the vacuum device is started, the chamber is evacuated through the outlet of the cavity to reduce a pressure in the chamber, and lower a boiling point of the working fluid in the chamber. The at least one temperature sensor is disposed inside or outside of the cavity. The at least one temperature sensor is electrically connected to the control member, and the at least one temperature sensor detects temperatures inside or outside the cavity, and calculates a fluid volume or a pressure of the working fluid that is required by using a temperature inside or outside of the cavity, so that the temperature inside or outside the cavity is changed and adjusted.

Therefore, in the cooling system having adjustable coolant boiling points, the heating furnace, and the cooling system using pressure control and fluid phase change, the cooling system having adjustable coolant boiling points provided by the present disclosure includes a cavity, a fluid injection system, a vacuum device, a control member, and a control valve. A chamber is disposed in the cavity, and the cavity has an inlet and an outlet. The fluid injection system is connected to the inlet of the cavity, and the fluid injection system transports a working fluid into the chamber from the inlet. The vacuum device is connected to the outlet of the cavity. The vacuum device is electrically connected to the control member, and the operation of the vacuum device is controlled by the control member. When the vacuum device is started, the chamber is evacuated through the outlet of the cavity, so that a pressure in the chamber is reduced, and a boiling point of the working fluid in the chamber is lowered. Accordingly, the vaporization of the working fluid is accelerated. When phase changes occur in the working fluid of the chamber, the working fluid is converted from a liquid phase to a gaseous phase and can absorb a large amount of heat for providing cooling and heat dissipation effects to a heat source device. The control valve is connected to the inlet of the cavity and electrically connected to the control member. The control valve controls an injection amount of the working fluid, and controls a vacuum degree and a temperature in the cavity by cooperating with the control of the vacuum device. In the present disclosure, the boiling point of the working fluid can be controlled and adjusted, so as to change and adjust the temperature of the cooling system and provide an improved effect of cooling and heat dissipation.

These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be effected without departing from the spirit and scope of the novel concepts of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The described embodiments may be better understood by reference to the following description and the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a cooling system having adjustable coolant boiling points according to a first embodiment of the present disclosure;

FIG. 2 is a schematic diagram of the cooling system having adjustable coolant boiling points according to a second embodiment of the present disclosure;

FIG. 3 is a schematic diagram of the cooling system having adjustable coolant boiling points according to a third embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a heating furnace according to a fourth embodiment of the present disclosure;

FIG. 5 is a schematic diagram of the heating furnace according to a fifth embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a cavity according to a sixth embodiment of the present disclosure;

FIG. 7 is a schematic diagram of the cavity according to a seventh embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a cooling system using pressure control and fluid phase change according to an eighth embodiment of the present disclosure;

FIG. 9 is a schematic diagram of the cooling system using pressure control and fluid phase change according to a ninth embodiment of the present disclosure;

FIG. 10 is a schematic diagram of the cooling system using pressure control and fluid phase change according to a tenth embodiment of the present disclosure;

FIG. 11 is a schematic diagram of the cooling system using pressure control and fluid phase change according to an eleventh embodiment of the present disclosure;

FIG. 12 is a schematic diagram of the cooling system using pressure control and fluid phase change according to a twelfth embodiment of the present disclosure; and

FIG. 13 is a three-phase diagram used in the cooling systems of the present disclosure.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a,” “an” and “the” includes plural reference, and the meaning of “in” includes “in” and “on.” Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure.

The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first,” “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like.

EMBODIMENTS

Referring to FIG. 1, the present disclosure provides a cooling system having adjustable coolant boiling points, and the cooling system is used for cooling a heat source device. The cooling system having adjustable coolant boiling points 100 in this embodiment is a fully closed system using a refrigerant. The refrigerant is a working fluid such as water, but is not limited thereto. The cooling system having adjustable coolant boiling points 100 includes a cavity 1, a fluid injection system 2, a vacuum device 3, a control member 4, and a control valve 5.

The cavity 1 is a hollow body, and a chamber 11 is disposed in the cavity 1. The cavity 1 has an inlet 12 and an outlet 13, and the inlet 12 and the outlet 13 are respectively connected to the chamber 11. The working fluid can be input into the chamber 11 through the inlet 12, and the working fluid can be output from the outlet 13. The working fluid can also be regarded as a coolant. The cavity 1 is an evaporator, and the cavity 1 can be in contact with or be adjacent to the heat source device, such that the heat from the high temperature of the heat source device can be transferred to the cavity 1. The heat source device can be disposed in the cavity 1 or outside the cavity 1, and a type of the heat source device is not limited in the present disclosure. The heat source device can be such as a heating furnace, or an electronic device or a machine device that requires cooling and heat dissipation. The number of the inlet 12 and the outlet 13 is not limited herein. For example, two or three of the inlets 12 and the outlets 13 can also be disposed in the present disclosure.

The fluid injection system 2 is connected to the inlet 12 of the cavity 1. The fluid injection system 2 can transport the working fluid to the chamber 11 through the inlet 12. The fluid injection system 2 can transport the working fluid in the form of mist or liquid to the chamber 11, and the form of the working fluid is not limited. The vacuum device 3 includes a vacuum pump, etc., and the vacuum device 3 is connected to the outlet 13 of the cavity 1. The vacuum device 3 is electrically connected to the control member 4, and the operation of the vacuum device 3 can be controlled by the control member 4, such as the switch and speed of the vacuum device 3. When the vacuum device 3 is started, the chamber 11 can be evacuated through the outlet 13, such that a pressure in the chamber 11 is decreased, and a boiling point of the working fluid in the chamber 11 is lowered, thereby allowing the vaporization (such as boiling vaporization or non-boiling vaporization) of the working fluid to be accelerated. The working fluid in the chamber 11 undergoes a phase change, and the working fluid changes from a liquid phase to a gaseous phase that can absorb a large amount of heat, so as to provide a cooling and heat dissipation effect 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/TΔV, in which dP/dT is the rate of change of pressure with temperature, L is the latent heat, T is the phase equilibrium temperature, and AV is the change in specific volume during phase change. Therefore, the purpose of regulating the boiling point temperature can be achieved by regulating the pressure.

The working fluid extracted through the outlet 13 of the chamber 1 can flow back to the chamber 1 through the vacuum device 3 and the fluid injection system 2. The structure of the fluid injection system 2 is not limited herein. In the present embodiment, the fluid injection system 2 can 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 chamber 1. The working fluid extracted through the outlet 13 of the chamber 1 can be transported 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 a liquid working fluid, and then transport the liquid working fluid to the water tank 22 for storage. Then, the liquid working fluid can be transported to the inlet 12 of the chamber 1 through the delivery pump 23, an atomizing head 24 is disposed on the inlet 12, and the working fluid can be transported to the chamber 11 as a water mist through the atomizing head 24.

The control valve 5 is connected to the inlet 12 of the cavity 1, and the control valve 5 can be disposed between the delivery pump 23 and the inlet 12 of the cavity 1. The control valve 5 is electrically connected to the control member 4, and the control member 4 can send a control signal to control the control valve 5, such that the working fluid transported to the inlet 12 of the cavity 1 can be controlled. The control valve 5 can be a switch (ON/OFF) valve or a proportional valve, which can control the injection amount of the working fluid, such that the control member 4 can control a switch or an opening degree through the control valve 5. The control member 4 can further control the operation of the vacuum device 3 to control a vacuum degree and a temperature in the cavity 1.

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

Referring to FIG. 2, a cooling system having adjustable coolant boiling points 100 of the present embodiment is a fully open system for refrigerant. When water is used as the refrigerant, since water is a harmless substance and can be directly discharged, the heat exchanger 21 can be omitted to reduce the volume and cost. The present embodiment is substantially the same as the first embodiment described above. The difference mainly lies in 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 recovered, such that the heat exchanger 21 in the above-mentioned embodiment is not required in this embodiment. The fluid injection system 2 of the present embodiment includes a water tank 22 and a delivery pump 23. The working fluid (such as water) is added to the water tank 22, and then the liquid working fluid can be transported to the inlet 12 of the cavity 1 through the delivery pump 23, such that the working fluid is transported to the chamber 11. The water tank 22 can include a water injection valve 8 and a liquid level gauge 9. The liquid level gauge 9 can be used to detect a liquid level of the working fluid in the water tank 22. When the liquid level is too low, the working fluid can be added through the water injection valve 8.

Referring to FIG. 3, the cooling system having adjustable coolant boiling points 100 of this embodiment is a semi-open system for refrigerant. This embodiment is substantially the same as the first embodiment. 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 transported 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 a liquid working fluid, transport the liquid working fluid to the water tank 22 for storage, and then the liquid working fluid can be transported to the inlet 12 of the cavity 1 through the delivery pump 23. In this embodiment, a gas-liquid separator 10 is disposed between the heat exchanger 21 and the water tank 22, thereby allowing the vapor to be directly discharged into the atmosphere, such that a smaller one of the heat exchanger 21 can be used. Only part of the vapor discharged from the heat exchanger 21 is condensed and separated by the gas-liquid separator 10, and the condensed working fluid flows into the water tank 22 for collection. The water tank 22 may further include the water injection valve 8 and the liquid level gauge 9, and the liquid level gauge 9 can be used to detect the liquid level of the working fluid in the water tank 22. When the liquid level is too low, the working fluid can be added through the water injection valve 8.

Referring to FIG. 4, this embodiment provides a heating furnace 200, which includes a heating zone 201 and a cooling zone 202. The heating zone 201 can heat an element to be heated by electric heating or other means. The cooling zone 202 is disposed at a downstream position of the heating zone 201. The cooling zone 202 can be used to cool the element to be heated that has been heated. The cooling system having adjustable coolant boiling points 100 of the present disclosure is disposed in the cooling zone 202. The cooling system having adjustable coolant boiling points 100 can provide cooling and heat dissipation effects to the cooling zone 202.

Referring to FIG. 5, the present embodiment provides a heating furnace 200. The heating furnace 200 includes the heating zone 201 and the cooling zone 202. The cooling zone 202 is disposed at a downstream position of the heating zone 201. The cooling zone 202 can be used to cool the element to be heated that has been heated. The cooling system having adjustable coolant boiling points 100 of the present disclosure is disposed in the cooling zone 202, and the cooling system having adjustable coolant boiling points 100 can provide cooling and heat dissipation effects to the cooling zone 202. In this embodiment, the vacuum device 3 is connected to the heating zone 201. Therefore, the vacuum device 3 can also be used to evacuate the heating zone 201 of the heating furnace 200 each time the heating is started, such that when the protective gas such as nitrogen is injected into the heating zone 201, the amount of protective gas that is used can be reduced. A valve body 20 can also be disposed between the vacuum device 3 and the heating zone 201 to start and stop the vacuum device 3 to evacuate the heating zone 201 of the heating furnace 200.

Referring to FIG. 6 and FIG. 7, the inlet 12 of the cavity 1 may have a drip-type design, and a heat source device 300 is near the inlet 12 of the cavity 1. Therefore, when the fluid injection system 2 transports the working fluid to the chamber 11 from the inlet 12, the working fluid can drip on the heat source device 300, or drip near the heat source device 300, such that the working fluid can be closer to the heat source device 300, and a better cooling and heat dissipation effect can be provided. In this embodiment, the heat source device 300 can be disposed in the cavity 1.

The cooling system having adjustable coolant boiling points of the present disclosure can change the boiling point of the working fluid by changing the pressure in the chamber, and there are no high-pressure parts in the cooling system. The working fluid in the cooling system can exist in liquid phase at room temperature and can be condensed and recovered under atmospheric pressure. In contrast, a refrigeration compression system cannot use liquids that are in liquid phase at room temperature and pressure (such as liquid pure water having a boiling point greater than 25° C.) as working fluids. The refrigeration compression system relies on an operation of a closed refrigerant system, while the cooling system of the present disclosure can operate in a closed or open system. The refrigeration compression system uses a high-pressure (compression) condensation, and the cooling system of the present disclosure uses a low-pressure (vacuum) evaporation.

Referring to FIGS. 8 and 9, the present disclosure provides a cooling system using pressure control and fluid phase change, which is used for cooling heat source devices. For example, the cooling system can be applied to the cooling of heat source devices such as injection molding devices, cooling devices, ice water systems, electronic devices, and heating furnaces. The cooling system of this embodiment is a fully closed refrigerant system, but is not limited thereto. For example, the cooling system can also be a semi-open system. The refrigerant is a working fluid such as water, but is not limited thereto. The cooling system using pressure control and fluid phase change includes the cavity 1, the fluid injection system 2, and the vacuum device 3.

The material of the cavity 1 is not limited, and can be a metal or a metal having good thermal conductivity (such as copper or aluminum). The cavity 1 has a hollow body, and the chamber 11 is disposed in the cavity 1. The cavity 1 has the inlet 12 and the outlet 13. The inlet 12 and the outlet 13 are respectively connected to the chamber 11, the working fluid can be input into the chamber 11 through the inlet 12, and the working fluid can be output from the outlet 13. The working fluid can also be regarded as a coolant. The cavity 1 is an evaporator, and the cavity 1 can be in contact with or be adjacent to the heat source device, such that the heat from the high temperature of the heat source device can be transferred to the cavity 1. The heat source device can be disposed in the cavity 1 or outside the cavity 1, but the heat source device is not limited thereto. The number of the inlet 12 and the outlet 13 is not limited in the present embodiment. For example, two or three of the inlets 12 and the outlets 13 can also be disposed. The inlet 12 can be disposed above the cavity 1, and can also be disposed on a lateral side of the cavity 1 (as shown in FIG. 11) or disposed below the cavity 1 (as shown in FIG. 12).

The chamber 11 may further include a porous material 103 to maximize a surface area and increase a heat exchange effect. The liquid level of the working fluid is not limited herein. For example, when the working fluid is evaporated instantaneously, the liquid level of the working fluid may be zero or close to zero.

In this embodiment, the cavity 1 includes a removable wall 14, and the removable wall 14 can be a side wall 101 or a bottom wall 102 of the cavity 1. The removable wall 14 can be fixed to an opening 15 of the cavity 1 by means of threaded locking or the like. The removable wall 14 can be removed from the cavity 1 to open the opening 15 for easy repair and maintenance. The cavity 1 can include a plurality of heat dissipation fins 16 that can be disposed inside or outside the cavity 1. In this embodiment, the heat dissipation fins 16 are disposed outside the cavity 1, and the heat dissipation fins 16 can be used to increase the heat exchange area and enhance the cooling and heat dissipation effect. The cavity 1 can further include a liquid level gauge 20 electrically connected to the control member 4. The liquid level gauge 20 can be used to detect the liquid level of the working fluid in the chamber 11, and is used to control the fluid volume of the working fluid to achieve the optimal cooling effect.

The fluid injection system 2 is connected to the inlet 12 of the cavity 1. The fluid injection system 2 can transport the working fluid into the chamber 11 from the inlet 12. The fluid injection system 2 can transport the working fluid in mist or liquid form into the chamber 11, and the form of the working fluid is not limited herein.

The vacuum device 3 includes a vacuum source, etc., and the vacuum device 3 is connected to the outlet 13 of the cavity 1. The vacuum device 3 is electrically connected to the control member 4, and the operation of the vacuum device 3 can be controlled by the control member 4. For example, the switch and rotation speed of the vacuum device 3 can be controlled. When the vacuum device 3 is started, the chamber 11 can be evacuated through the outlet 13, such that the pressure in the chamber 11 can be reduced, and the boiling point of the working fluid in the chamber 11 can be lowered, thereby allowing the working fluid to be vaporized faster. The working fluid in the chamber 11 undergoes a phase change, and the working fluid changes from a liquid phase to a gaseous phase to absorb a large amount of heat, so as to provide a cooling and heat dissipation effect for the heat source device. Since the boiling point of the working fluid can be controlled and adjusted, the temperature of the working fluid can be changed and adjusted.

In this embodiment, the vacuum device 3 may include two vacuum sources 31, 32. The two vacuum sources 31, 32 have different specifications and can provide different vacuum degrees. The two vacuum sources 31, 32 can be respectively suitable for a low vacuum and a higher vacuum. Different pumps can be used according to requirements to control the pressure. The vacuum degree of the two vacuum sources 31, 32 can be adjusted at any time according to the required pressure to improve the cooling and heat dissipation effect.

The working fluid (gaseous or liquid) extracted through the outlet 13 of the cavity 1 can flow back to the cavity 1 through the vacuum device 3 and the fluid injection system 2. The structure of the fluid injection system 2 is not limited herein and can be various types of fluid injection devices. In the present embodiment, the fluid injection system 2 can include a heat exchanger 21, a water tank 22, and a delivery pump 23. The structure and operation of the present embodiment are substantially the same as those of the above-mentioned embodiments, and will not be reiterated herein.

At least one first temperature sensor 30 is disposed inside the cavity 1, and at least one second temperature sensor 40 is disposed outside the cavity 1. The first temperature sensor 30 and the second temperature sensor 40 are electrically connected to a control member 4. The first temperature sensor 30 and the second temperature sensor 40 can be used to respectively detect the temperature inside and outside the cavity 1, so as to perform temperature control. The control member 4 is a main control system that can cooperate with the first temperature sensor 30 and the second temperature sensor 40 to detect the temperature inside and outside the cavity 1, so as to calculate at least one of the required fluid volume and pressure by using the temperature difference between the inside and outside of the cavity 1. Furthermore, through the control of the vacuum device 3 and the control valve 5, the cavity 1 is maintained to have a target temperature or pressure to provide an improved cooling and heat dissipation effect. In another embodiment, only at least one first temperature sensor 30 may be provided inside the cavity 1, or only at least one second temperature sensor 40 may be provided outside the cavity 1; that is, only at least one temperature sensor may be provided inside or outside the cavity 1 for detecting the temperature inside or outside the cavity 1. Furthermore, the temperature inside or outside the cavity 1 is used to calculate at least one of the required fluid volume and pressure of the working fluid, so as to change and adjust the temperature of the cooling system.

The heat source device 300 (as shown in FIG. 10) may or may not be in contact with the cavity 1. At least one third temperature sensor 50 may be further provided on the heat source device 300, the third temperature sensor 50 is electrically connected to the control member 4, and the third temperature sensor 50 can be used to detect the temperature of the heat source device 300, so as to perform more accurate fluid volume and pressure control.

The cavity 1 can also be formed in a container 60, and a liquid or gas (fluid) can be disposed in the container 60, such that the cavity 1 can be immersed in the liquid or gas and perform heat exchange by convection. Alternatively, heat exchange can be performed by contact. In other words, the cavity 1 is in direct contact with the heat source device 300 to provide a better cooling and heat dissipation effect. The fluid in the container 60 can be able to enter and exit the container 60, or be unable to enter and exit the container 60. In this embodiment, the fluid in the container 60 can enter and exit the container 60. The container 60 can include an input port 601 and an output port 602, which can be used for inputting and outputting fluids, respectively. The container 60 can include fluid or not include fluid, the fluid in the container 60 can be the same as or different from the working fluid, and the fluid in the container 60 can have a low boiling point, have good heat conduction, and preferably be non-toxic and environment-friendly.

In addition, the heat absorbed by a substance when the phase of the substance is changed (for example, from liquid to gas) can be expressed according to the equation of q=m*Hv, in which: q: represents the absorbed heat, usually expressed in joules (J) or calories (cal); m: represents the mass of the object, usually expressed in grams (g) or kilograms (kg); and Hv: represents the heat of vaporization required by the substance when the phase of the substance is changed, usually expressed in joules per gram (J/g) or calories per gram (cal/g). Using this equation, the heat required when the working fluid changes from liquid to gas in the present disclosure can be calculated, thereby allowing the heat in the cooling system to be removed to reduce the temperature of the cooling system. A target temperature (Ts) of the cooling system can be configured, and a pressure value required to control the target temperature can be obtained according to the position of the target temperature using the three-phase diagram (as shown in FIG. 13). The relationships between the target temperature and the temperature measured by the first temperature sensor 30, the second temperature sensor 40, the third temperature sensor 50, etc., or the power (WA) of the heat source device can determine the amount of the working fluid that is filled into the cooling system.

In addition, the cavity 1 may further include an internal interlayer space 17 (as shown in FIG. 11). The internal interlayer space 17 may be defined at the side wall 101 or the bottom wall 102 of the cavity 1, and the internal interlayer space 17 is evacuated and a heat insulator may be formed by the vacuum, such that the internal interlayer space 17 may be incapable of transferring heat.

In addition, as shown in FIG. 12, the shape of the cavity 1 can also be changed. The cavity 1 can include a main body 18 and a plurality of branch parts 19, and the branch parts 19 are connected to the main body 18. The inlet 12 is connected to the branch parts 19, and the outlet 13 is connected to the main body 18. The fluid injection device can transport the working fluid to the chamber 11 of the cavity 1 through the inlet 12. When the vacuum device is started, the chamber 11 can be evacuated through the outlet 13 to form a negative pressure in the chamber 11, which can reduce the boiling point of the working fluid in the chamber 11 and accelerate the vaporization of the working fluid. The cavity 1 can further include the plurality of heat dissipation fins 16. The heat dissipation fins 16 can be used to increase the heat exchange area and improve the cooling and heat dissipation effect. The cavity 1 can also be disposed in a container 60. The container 60 can include a fluid (liquid or gas) for the container to be immersed in the fluid and perform heat exchange by convection. The container 60 includes the input port 601 and the output port 602 for inputting and outputting fluids, respectively.

The beneficial effect of the present disclosure is that, in the cooling system having adjustable coolant boiling points, the heating furnace, and the cooling system using pressure control and fluid phase change, the cooling system having adjustable coolant boiling points provided by the present disclosure includes a cavity, a fluid injection system, a vacuum device, a control member, and a control valve. A chamber is disposed in the cavity, and the cavity has an inlet and an outlet. The fluid injection system is connected to the inlet of the cavity, and the fluid injection system transports a working fluid into the chamber from the inlet. The vacuum device is connected to the outlet of the cavity. The vacuum device is electrically connected to the control member, and the operation of the vacuum device is controlled by the control member. When the vacuum device is started, the chamber is evacuated through the outlet of the cavity, so that a pressure in the chamber is reduced, and a boiling point of the working fluid in the chamber is lowered. Accordingly, the vaporization of the working fluid is accelerated. When phase changes occur in the working fluid of the chamber, the working fluid is converted from a liquid phase to a gaseous phase and can absorb a large amount of heat for providing cooling and heat dissipation effects to a heat source device. The control valve is connected to the inlet of the cavity and electrically connected to the control member. The control valve controls an injection amount of the working fluid, and controls a vacuum degree and a temperature in the cavity by cooperating with the control of the vacuum device. In the present disclosure, the boiling point of the working fluid can be controlled and adjusted, so as to change and adjust the temperature of the cooling system and provide an improved effect of cooling and heat dissipation.

In addition, at least one first temperature sensor is provided inside the cavity, and at least one second temperature sensor is provided outside the cavity. The first temperature sensor and the second temperature sensor can be used to detect the temperature inside and outside the cavity, respectively, and use the temperature difference between the inside and outside of the cavity to calculate at least one of the fluid volume and pressure of the working fluid that is required, so as to change and adjust the temperature of the cooling system to provide an improved cooling and heat dissipation effect.

The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.

The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.