Heat pipe and heat source system

Abstract

The utility model relates to the field of heat pipes, and provides a heat pipe and a heat source system, comprising: a plurality of heat pipe bodies, each of which is internally provided with a liquid metal working medium section and a non-condensable gas working medium section; one end of each heat pipe body is inserted into the heat source, the liquid metal working medium sections are arranged at the ends, close to the heat source, of the heat pipe bodies, and the non-condensable gas working medium sections are arranged at the ends, away from the heat source, of the heat pipe bodies; the heat energy utilization device and the heat dissipation device are connected to the other end of each heat pipe body and are sequentially distributed at intervals in the direction from the heat source close to the heat pipe body to the heat source away from the heat pipe body. When the heat energy utilization device breaks down and cannot absorb and utilize heat of the heat pipe, the temperature of a heat source rises, the pressure of liquid metal steam in the heat pipe body also rises, the liquid metal steam extrudes non-condensable gas until the non-condensable gas moves to the heat dissipation device, the heat is released in time through the heat dissipation device, the heat source is prevented from being melted due to overtemperature, and the service life of the heat pipe is prolonged. And enough time is won for operators to deal with faults, and accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipes, in particular to a heat pipe and a heat source system. Background Art

[0002] Heat pipes are an ideal way to achieve efficient heat transfer between heat sources and thermoelectric converters. The energy generated by the heat source is transferred to the evaporation section of the metal heat pipe arranged inside the heat source. Through the evaporation, condensation and natural circulation of the working fluid inside the heat pipe, the heat is transferred from the heat source to the thermoelectric converter and then utilized.

[0003] However, once the thermoelectric conversion device fails and is unable to consume the heat transferred by the heat pipe, the temperature of the heat source will continue to rise, which can easily cause the heat pipe to melt and cause an accident. Utility Model Content

[0004] The purpose of the utility model is to provide a heat pipe and a heat source system to at least solve one of the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a heat pipe, comprising: a plurality of heat pipe bodies, each of which is provided with a liquid metal working fluid section and a non-condensable gas working fluid section; a heat source, one end of each of the heat pipe bodies is inserted into the heat source, the liquid metal working fluid section is arranged at an end of the heat pipe body close to the heat source, and the non-condensable gas working fluid section is arranged at an end of the heat pipe body away from the heat source; a heat energy utilization device and a heat dissipation device, which are connected to the other end of each of the heat pipe bodies, and the heat energy utilization device and the heat dissipation device are sequentially spaced from each other in a direction from the heat pipe body close to the heat source to the heat source away from the heat source, the heat energy utilization device is the heat output end of the heat pipe when it is working normally, and the heat dissipation device is used to discharge the heat generated by the heat source when the heat energy utilization device fails.

[0006] The heat pipe provided by the utility model also includes: a gas storage device for storing non-condensable gas working medium, the gas storage device is arranged at one end of the heat pipe body close to the heat dissipation device, and the gas storage device is connected to the interior of each heat pipe body.

[0007] According to the heat pipe provided by the utility model, the gas storage device includes a gas storage reservoir, and the gas storage reservoir is connected to each of the heat pipe bodies.

[0008] According to the heat pipe provided by the utility model, the gas storage device includes a plurality of gas storage reservoirs, and each of the gas storage reservoirs corresponds to and is communicated with each of the heat pipe bodies.

[0009] According to the heat pipe provided by the utility model, the non-condensable gas working medium is an inert gas working medium.

[0010] According to the heat pipe provided by the utility model, the heat energy utilization device is a thermoelectric conversion device.

[0011] According to the heat pipe provided by the utility model, the heat dissipation device is a radiator.

[0012] The heat pipe provided by the utility model further includes: a temperature control device, which is arranged on the gas storage device, and the temperature control device is used to adjust the temperature in the gas storage device.

[0013] According to the heat pipe provided by the utility model, the temperature control device includes a heater, and the heater is arranged on the gas storage device.

[0014] The utility model also provides a heat source system, comprising the heat pipe as described in any one of the above items.

[0015] The utility model provides a heat pipe, comprising: a plurality of heat pipe bodies, each of which is provided with a liquid metal working fluid section and a non-condensable gas working fluid section; a heat source, one end of each heat pipe body is inserted into the heat source, the liquid metal working fluid section is arranged at one end of the heat pipe body close to the heat source, and the non-condensable gas working fluid section is arranged at one end of the heat pipe body away from the heat source; a heat energy utilization device and a heat dissipation device, which are connected to the other end of each heat pipe body, and the heat energy utilization device and the heat dissipation device are sequentially spaced and distributed in a direction from the heat pipe body close to the heat source to the heat pipe body away from the heat source, the heat energy utilization device is the heat output end when the heat pipe is working normally, and the heat dissipation device is used to discharge the heat generated by the heat source when the heat energy utilization device fails. With such an arrangement, when the heat energy utilization device fails and cannot absorb the heat transferred by the heat pipe, the temperature of the heat source will rise due to the continuous heat generation, and the pressure of the liquid metal vapor inside the heat pipe body will also increase accordingly. The liquid metal vapor will squeeze the non-condensable gas until it moves to the heat dissipation device, and release the heat generated by the heat source through the heat dissipation device, thereby preventing the heat source temperature from further increasing, preventing the heat source and the heat pipe from melting due to the excessively high heat source temperature, and buying enough time for the operator to deal with the failure and avoid accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is one of the structural schematic diagrams of the heat pipe provided by the utility model.

[0018] Figure 2This is the second structural schematic diagram of the heat pipe provided by the utility model.

[0019] Reference numerals:

[0020] 1: heat source; 2: heat pipe body; 3: liquid metal working fluid section; 4: thermal energy utilization device; 5: non-condensable gas working fluid section; 6: heat dissipation device; 7: gas storage device. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] Please refer to Figure 1 to Figure 2 As shown, the embodiment of the utility model provides a heat pipe, including a plurality of heat pipe bodies 2, a heat source 1, a heat energy utilization device 4, and a heat dissipation device 6. Specifically, the heat source 1 can be a general combustion heat source, a solar concentrated high temperature heat source, a nuclear reactor heat source, etc. Figure 1As shown, each heat pipe body 2 is provided with a liquid metal working fluid section 3 and a non-condensable gas working fluid section 5 inside. It should be noted that non-condensable gas refers to a gas that does not react with liquid metal working fluid and whose boiling point is much lower than the working temperature of the heat pipe body 2. One end of each heat pipe body 2 is inserted into the heat source 1. Specifically, a plurality of cooling channels are distributed in the heat source 1, and the left end of the heat pipe body 2 is inserted into the cooling channel. Among them, the number of heat pipe bodies 2 can be specifically determined according to actual design requirements. The liquid metal working fluid section 3 is arranged at the end of the heat pipe body 2 close to the heat source 1, and the non-condensable gas working fluid section 5 is arranged at the end of the heat pipe body 2 away from the heat source 1. That is to say, Figure 1 As shown, the liquid metal working fluid section 3 is located at the left end of the heat pipe body 2 , and the non-condensable gas working fluid section 5 is located at the right end of the heat pipe body 2 .

[0026] The heat utilization device 4 and the heat dissipation device 6 are connected to the other end of each heat pipe body 2, that is, located at the right end of the heat pipe body 2, and are spaced in sequence along the direction from the heat source 1 to the heat source 1 away from the heat source 1, that is, from left to right. The heat utilization device 4 serves as the heat output end when the heat pipe is working normally, and is used to absorb and utilize the heat transferred by the heat pipe body 2. The heat dissipation device 6 serves as a protection mechanism for the heat pipe, and is used to discharge the heat generated by the heat source 1, that is, the heat transferred by the heat pipe body 2 in time when the heat utilization device 4 fails, so as to avoid the temperature of the heat source 1 from rising, and enhance the safety of the heat transfer of the heat pipe.

[0027] Specifically, Figure 1 The figure shows the state of the heat pipe in normal operation. The heat source 1 releases heat, and the liquid metal inside the heat pipe body 2 absorbs heat, evaporates, and turns into metal vapor. The metal vapor absorbs heat, condenses and liquefies at the heat energy utilization device 4, and then flows back to the evaporation section of the heat pipe body 2, and the cycle repeats. In this state, the heat released by the heat source 1 is the same as the heat consumed by the heat energy utilization device 4. In addition, the pressure of the non-condensable gas in the heat pipe body 2 is the same as the pressure of the metal vapor, and the interface between the two is located between the heat energy utilization device 4 and the heat dissipation device 6. The metal vapor will not diffuse to the heat dissipation device 6. At this time, the heat dissipation device 6 does not work.

[0028] like Figure 2The figure shows the state of the heat pipe in abnormal operation. At this time, the heat energy utilization device 4 fails and cannot work. Since the heat energy utilization device 4 cannot absorb the heat of the heat pipe, the temperature of the heat source 1 will increase due to the continuous generation of heat, so the pressure of the liquid metal vapor inside the heat pipe body 2 will also increase. After the metal vapor pressure increases, it will squeeze the non-condensable gas, so that the interface between the metal vapor and the non-condensable gas moves toward the heat sink 6, that is, moves to the right, and the condensation section of the heat pipe body 2 is transferred to the heat sink 6, and heat is released to the outside through the heat sink. When the fault is eliminated, the heat energy utilization device 4 is reopened and absorbs the heat transferred by the heat pipe, the temperature of the heat source 1 gradually decreases, the liquid metal vapor pressure also decreases, the gas interface moves toward the heat source 1, that is, moves to the left, and the condensation section of the heat pipe body 2 returns to the heat energy utilization device 4.

[0029] With such arrangement, when the heat energy utilization device 4 fails and cannot absorb the heat transferred by the heat pipe, the temperature of the heat source 1 will rise, so the pressure of the liquid metal vapor in the heat pipe body 2 will also increase, and the liquid metal vapor will squeeze the non-condensable gas until it moves to the heat dissipation device 6, releasing the heat generated by the heat source 1 through the heat dissipation device 6, thereby preventing the temperature of the heat source 1 from further rising, preventing the heat source and the heat pipe from melting due to the excessive temperature of the heat source 1, and buying enough time for the operator to deal with the failure and avoid accidents. It should be noted that, with Figure 1 and Figure 2 For the placement of the heat pipe shown in the figure, the left and right directions in the figure refer to the left and right directions.

[0030] Furthermore, in an embodiment of the utility model, the heat pipe also includes a gas storage device 7, which is used to store non-condensable gas working fluid. The gas storage device 7 is arranged at one end of the heat pipe body 2 close to the heat dissipation device 6, that is, located at the right end of the heat pipe body 2, and the gas storage device 7 is connected to the interior of each heat pipe body 2. In this way, a stable gas source can be provided to the interior of the heat pipe body 2 through the gas storage device 7, thereby improving the reliability of the system. It should be noted that the volume of the gas storage device 7 determines the position of the gas interface under normal working conditions and abnormal working conditions, and is also closely related to the working temperature of the heat source 1.

[0031] In some embodiments of the present invention, the gas storage device 7 includes a gas storage reservoir, which is connected to each heat pipe body 2. In this way, non-condensable gas can be provided to multiple heat pipe bodies 2 through one gas reservoir, which has a simple structure, compact layout, and is convenient for centralized control.

[0032] In other embodiments of the present invention, the gas storage device 7 includes a plurality of gas storage reservoirs, each gas storage reservoir corresponds to and is connected to each heat pipe body 2. In other words, one heat pipe body 2 is connected to one gas storage reservoir. Such a configuration facilitates independent operation and control, avoids mutual interference between different heat pipe bodies 2, and is easy to inspect and maintain.

[0033] As an optional embodiment of the present invention, the non-condensable gas working medium is an inert gas working medium. Specifically, the non-condensable gas is, for example, helium, neon, etc. In this way, the inert gas has good chemical stability, does not react with liquid metal, and can exist in the system for a long time without causing corrosion, pollution or other adverse reactions. It also has good safety, is not flammable or explosive, and is easy to obtain and store.

[0034] In a specific embodiment of the utility model, the heat energy utilization device 4 is a thermoelectric conversion device. Thermoelectric conversion technology is an existing mature technology, so the specific structure of the thermoelectric conversion device will not be repeated here, and it generally refers to any thermoelectric conversion device that can utilize the heat of the heat pipe. Specifically, the heat exchanger in the thermoelectric conversion device is connected to each heat pipe body 2, so that after absorbing the heat of the heat pipe, the heat energy is converted into electrical energy, and the heat energy generated by the heat source 1 is fully utilized to ensure the stable performance and efficient operation of the system. Of course, in other embodiments, in addition to using the heat energy generated by the heat source 1 through the thermoelectric conversion device to generate electricity, the heat energy utilization device 4 can also use the heat energy generated by the heat source 1 to apply to many scenarios such as urban heating and industrial steam supply, and its specific settings can be adaptively adjusted according to the actual application scenario.

[0035] In an optional embodiment of the utility model, the heat dissipation device 6 is a radiator. The radiator may be one or more, connected to each heat pipe body 2, so that when the heat energy utilization device 4 fails, the heat from the heat source 1 can be discharged in time to prevent the heat source 1 from melting due to overheating. It should be noted that in this embodiment, the radiator may include a variety of structures, such as existing mature radiation radiators, convection radiators, etc., and its specific structure can be determined by the cold source and heat dissipation requirements. The radiator does not work when the thermoelectric conversion device is working normally, and starts to work after the thermoelectric conversion device fails. Of course, in other embodiments, the heat dissipation device 6 includes but is not limited to a radiator, and can also be other devices that can absorb the heat of the heat pipe to transfer the heat out in time as a system safety backup to provide protection measures for the system.

[0036] In an optional embodiment of the present invention, the heat pipe further includes a temperature control device, which is disposed on the gas storage device 7. Specifically, the temperature control device is disposed on the surface of the gas storage reservoir, and the temperature control device is used to adjust the temperature in the gas storage device 7. In this arrangement, by adding the temperature control device, the temperature of the gas storage reservoir can be adjusted, thereby changing the position of the gas interface in the heat pipe body 2, thereby achieving the effect of adjusting the working temperature of the heat pipe.

[0037] Specifically, in the embodiment of the utility model, the temperature control device includes a heater, and the heater is arranged on the gas storage device 7. In this way, by turning on the heater, the gas temperature in the gas storage can be changed, thereby changing the non-condensable gas pressure to adjust the gas interface position. It has a simple structure, is easy to operate, and is easy to implement. Of course, in other embodiments, the temperature control device includes but is not limited to a heater, and other commonly used temperature regulating devices can also be used.

[0038] In combination with the above-mentioned embodiments, the heat pipe of the utility model is specifically described. The embodiment of the utility model provides a new type of heat pipe heat transfer structure, which uses a liquid metal heat pipe to transfer the heat energy generated by the heat source 1 to the thermoelectric conversion device, and uses a radiator and a non-condensable gas reservoir as a protection mechanism for the heat pipe. In this way, when the thermoelectric conversion device fails and no longer absorbs the heat transferred by the heat pipe, the temperature of the heat source 1 will increase, so the pressure of the liquid metal vapor in the heat pipe body 2 will also increase accordingly. The liquid metal vapor will squeeze the non-condensable gas, so that the condensation section of the liquid metal vapor will be transferred to the radiator, thereby dissipating the heat generated by the heat source 1 through the radiator, thereby preventing the temperature of the heat source 1 from further increasing, effectively improving the safety of the heat transfer of the heat pipe, and winning valuable time for the staff to troubleshoot.

[0039] The heat source system provided by the present invention is described below. The heat source system described below and the heat pipe described above can be referred to each other.

[0040] The embodiment of the utility model also provides a heat source system. Specifically, the heat source system is generally a constant heat flow heat source system, including heat pipes as described in the above embodiments. With such a configuration, when the heat energy utilization device 4 fails and cannot absorb the heat transferred by the heat pipe, the temperature of the heat source 1 will increase, so the pressure of the liquid metal vapor in the heat pipe body 2 will also increase accordingly, and the liquid metal vapor will squeeze the non-condensable gas until it moves to the heat dissipation device 6, and the heat generated by the heat source 1 is released through the heat dissipation device 6, thereby preventing the temperature of the heat source 1 from further increasing, preventing the heat source and the heat pipe from melting due to the excessive temperature of the heat source 1, and buying enough time for the operator to handle the failure and avoid accidents. The derivation process of this beneficial effect is roughly similar to the derivation process of the beneficial effect of the above-mentioned heat pipe, so it will not be repeated here.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A heat pipe, characterized in that: include: A plurality of heat pipe bodies (2), each of the heat pipe bodies (2) being provided with a liquid metal working fluid section (3) and a non-condensable gas working fluid section (5); A heat source (1), one end of each heat pipe body (2) is inserted into the heat source (1), the liquid metal working fluid section (3) is arranged at an end of the heat pipe body (2) close to the heat source (1), and the non-condensable gas working fluid section (5) is arranged at an end of the heat pipe body (2) away from the heat source (1); The heat energy utilization device (4) and the heat dissipation device (6) are connected to the other end of each of the heat pipe bodies (2), and the heat energy utilization device (4) and the heat dissipation device (6) are sequentially spaced from close to the heat source (1) to far away from the heat source (1) along the heat pipe body (2). The heat energy utilization device (4) is the heat output end when the heat pipe is working normally, and the heat dissipation device (6) is used to discharge the heat generated by the heat source (1) when the heat energy utilization device (4) fails.

2. The heat pipe according to claim 1, characterized in that Also includes: A gas storage device (7) is used to store non-condensable gas working medium. The gas storage device (7) is arranged at one end of the heat pipe body (2) close to the heat dissipation device (6), and the gas storage device (7) is connected to the interior of each heat pipe body (2).

3. The heat pipe according to claim 2, characterized in that The gas storage device (7) comprises a gas storage reservoir, and the gas storage reservoir is connected to each of the heat pipe bodies (2).

4. The heat pipe according to claim 2, characterized in that The gas storage device (7) comprises a plurality of gas storage reservoirs, each of which corresponds to and is in communication with each of the heat pipe bodies (2).

5. The heat pipe according to claim 2, characterized in that The non-condensable gas working fluid is an inert gas working fluid.

6. The heat pipe according to claim 1, characterized in that The heat energy utilization device (4) is a thermoelectric conversion device.

7. The heat pipe according to claim 1, characterized in that The heat dissipation device (6) is a radiator.

8. The heat pipe according to claim 2, characterized in that Also includes: A temperature control device is arranged on the gas storage device (7), and the temperature control device is used to adjust the temperature inside the gas storage device (7).

9. The heat pipe according to claim 8, characterized in that The temperature control device comprises a heater, and the heater is arranged on the gas storage device (7).

10. A heat source system, characterized in that: Comprising the heat pipe as described in any one of claims 1-9.

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