Heating device of high-temperature heat pipe

Abstract

The invention discloses a heating device of a high-temperature heat pipe, and belongs to the technical field of high-temperature heat pipes, the heating device comprises an electromagnetic induction heating assembly, a head sealing element and a tail sealing element, the electromagnetic induction heating assembly comprises a quartz glass pipe, a positive plate, a negative plate, an electrode insulating plate and a metal heating pipe; a high-temperature heat pipe to be tested is placed in the quartz glass pipe, the positive plate and the negative plate are used for being connected with a high-frequency power source, the metal heating pipe is wound around the quartz glass pipe in the circumferential direction and used for acting with a high-frequency electromagnetic field generated by the positive plate and the negative plate, and a fluid channel communicated with cold source fluid is formed in the metal heating pipe. And the head sealing element and the tail sealing element are respectively sealed at two ends of the quartz glass tube. In the manufacturing and checking process of the high-temperature heat pipe, the high-temperature heat pipe can be rapidly heated, the heating time is remarkably shortened, the good cooling effect is achieved, effective and rapid heating and heat dissipation are achieved in the repeated high and low temperature circulation process, and the requirements for manufacturing and checking of the high-temperature heat pipe are met.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of high-temperature heat pipes, and particularly relates to a heating device for a high-temperature heat pipe. BACKGROUND

[0002] A high-temperature heat pipe is a heat transfer element with a working temperature of 600-2000 DEG C, and uses liquid metal (sodium, potassium, and the like) as a working medium. Heat is brought to a cold end through continuous evaporation of alkali metal in a fully-closed vacuum system, and then condensed. The heat is transferred through repeated evaporation and condensation of alkali metal. The high-temperature heat pipe is a highly efficient heat transfer element, and has a wide application prospect in the fields of nuclear industry, solar energy utilization, and chemical industry. In the manufacturing and testing process of the heat pipe, the heat pipe needs to be repeatedly and rapidly heated to high temperature in a vacuum environment. At present, the heat pipe is heated by radiation in a metal vacuum cavity using heat generated by resistance. The heating speed is slow, and it takes a long time to recover to low temperature, which cannot meet the requirement of repeatedly and rapidly heating the heat pipe to high temperature. This results in low efficiency in the manufacturing and testing of the heat pipe, and cannot meet the requirement of rapid production and application of the heat pipe.

[0003] Electromagnetic induction heating is a new type of heating method, which is different from traditional current resistance heating and flame heating. In the electromagnetic induction heating, the heated material is placed in a high-frequency alternating magnetic field. The magnetic force lines of the magnetic field cut the heated material in the magnetic field. According to Faraday's law of electromagnetic induction, eddy current is generated in the cross section perpendicular to the magnetic force lines. The heat energy is generated on the alternating impedance of the eddy current in the conductive material according to the Joule heating effect law, and the workpiece is heated. The electromagnetic induction heating has the advantages of high heating efficiency, high heating temperature, short heating time, easy automatic control, safety, and reliability, and has a wide application in the heating field.

[0004] The prior art heating device for the high-temperature heat pipe also uses electromagnetic induction heating. However, the heat pipe needs to be repeatedly and rapidly heated to high temperature in the manufacturing process. The current heating device cannot meet the requirement. SUMMARY

[0005] The application aims to solve the technical problem of meeting the requirement of repeated rapid heating in the manufacturing process of the high-temperature heat pipe. Therefore, the application provides a heating device for a high-temperature heat pipe, which can rapidly heat the high-temperature heat pipe in the manufacturing and testing process of the high-temperature heat pipe, significantly shorten the heating time, rapidly cool down in the repeated testing process, has a good cooling effect, realizes effective and rapid heating and heat dissipation in the repeated high and low temperature cycle process, and meets the requirement of the manufacturing and testing of the high-temperature heat pipe.

[0006] The application provides a heating device for a high-temperature heat pipe, which comprises:

[0007] The electromagnetic induction heating assembly comprises a quartz glass tube, a positive plate, a negative plate, an electrode insulation plate and a metal heating pipe. The high-temperature heat pipe to be tested is placed in the quartz glass tube. The positive plate and the negative plate are arranged separately by the electrode insulation plate. The positive plate and the negative plate are used for connecting the high-frequency power supply and are placed beside the metal heating pipe. The metal heating pipe is spirally wound around the circumference of the quartz glass tube. The metal heating pipe is used for interacting with the high-frequency electromagnetic field generated by the positive plate and the negative plate. The metal heating pipe has a fluid passage inside. The two ends of the metal heating pipe are respectively used for connecting the cold source fluid.

[0008] A head seal and a tail seal are respectively sealed at the two ends of the quartz glass tube. The head seal is used for connecting the operation end. The tail seal is used for connecting the vacuum pump group.

[0009] In some embodiments, the metal heating pipe comprises a plurality of heating spiral pipes arranged from one end of the quartz glass tube to the other end. Each heating spiral pipe is spirally wound around the circumference of the quartz glass tube at intervals. The two ends of each heating spiral pipe are respectively fixed on the positive plate and the negative plate. The two ends of each heating spiral pipe are respectively used for connecting the cold source fluid.

[0010] In some embodiments, the positive plate, the electrode insulation plate and the negative plate are arranged at corresponding positions of the plurality of heating spiral pipes along the placement direction of the quartz glass tube. The outer sides of the positive plate and the negative plate are respectively fixed by the two ends of the plurality of heating spiral pipes.

[0011] In some embodiments, at least one temperature measuring element is further included. The temperature measuring element is arranged on the surface of the high-temperature heat pipe to be tested.

[0012] In some embodiments, the head seal comprises a front flange assembly, a rear flange assembly, a fixed cylinder, a resistance wire and an outer cylinder. One end of the outer cylinder is connected to the quartz glass tube through the front flange assembly. The other end of the outer cylinder is connected to the operation end through the rear flange assembly. The fixed cylinder is arranged in the outer cylinder. The resistance wire is wound around the outer circumference of the fixed cylinder and is limited by the inner wall of the outer cylinder. The fixed cylinder is used for placing the high-temperature heat pipe to be tested.

[0013] In some embodiments, the front flange assembly comprises a first flange, a second flange and a third flange connected in sequence. The first flange is sealingly fixed to the quartz glass tube. The second flange clamps the end of the quartz glass tube. The third flange is connected to one end of the outer cylinder.

[0014] In some embodiments, the head seal further comprises a bellows arranged outside the outer cylinder. The two ends of the bellows are respectively sealed to the front flange assembly and the rear flange assembly.

[0015] In some embodiments, the front flange assembly further comprises a fourth flange arranged between the third flange and the bellows.

[0016] In some embodiments, the tail sealing member comprises a fifth flange, a sixth flange and a joint connected in sequence, the fifth flange is connected to the end of the quartz glass tube, and the joint is used for connecting with the vacuum pump set.

[0017] In some embodiments, a cooling pipe is arranged between the positive plate and the negative plate, and is used for circulating a cold source fluid to dissipate heat from the positive plate and the negative plate.

[0018] From the above technical solutions, the beneficial effects of the present application are as follows:

[0019] The present application seals the two ends of the electromagnetic induction heating assembly through the head sealing member and the tail sealing member, forms an integrated heating device, combines the positive plate, the electrode insulation plate and the negative plate to provide a device for the electromagnetic induction magnetic field, generates a high-frequency electromagnetic field through the connection of the high-frequency power supply, makes the metal heating pipe wound around the circumference of the quartz glass tube rapidly heat up under the action of the high-frequency electromagnetic field, and then radiates and transmits heat to the high-temperature heat pipe to be tested through the quartz glass tube; the two ends of the metal heating pipe are connected to the cold source fluid, and the cold quantity can also be provided through the metal heating pipe; since the tail sealing member is connected to the vacuum pump set, the quartz glass tube can be vacuumized, so that the quartz glass tube serves as a vacuum chamber, has a smaller volume than the vacuum chamber made of metal material, requires less air extraction time and has a heat capacity far lower than that of the metal vacuum chamber; in the process of repeated high-low temperature cycles, the high-temperature heat pipe to be tested can be rapidly heated and cooled, greatly reducing the heating and cooling time. In the manufacturing and testing process of the high-temperature heat pipe, the high-temperature heat pipe can be rapidly heated, the heating time is significantly shortened, and the high-temperature heat pipe can be rapidly cooled in the repeated testing process, having a good cooling effect, realizing effective and rapid heating and cooling in the repeated high-low temperature cycles, and meeting the needs of the manufacturing and testing of the high-temperature heat pipe. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be simply introduced one by one below, and obviously, the drawings in the following description are some embodiments of the present application, and other embodiments and drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings, various schematic diagrams according to the embodiments of the present application are shown, which are not necessarily drawn to scale, some details are exaggerated for the purpose of clear expression, and some details can be omitted.

[0021] Figure 1 An embodiment schematic diagram of the heating device of the high-temperature heat pipe of the present application is shown;

[0022] Figure 2 An embodiment cross-sectional schematic diagram of the heating device of the high-temperature heat pipe of the present application is shown;

[0023] Figure 3 An embodiment of the head seal of the application is shown in the schematic view;

[0024] Figure 4 An embodiment of the fixed cylinder and resistance wire of the application is shown in the schematic view;

[0025] Figure 5 An embodiment of the tail seal of the application is shown in the schematic view.

[0026] Reference signs: 100, electromagnetic induction heating assembly; 110, quartz glass tube; 120, positive plate; 130, negative plate; 140, electrode insulation plate; 150, metal heating tube; 151, heating spiral tube; 160, temperature measuring piece; 200, head seal; 210, front flange assembly; 211, first flange; 212, second flange; 213, third flange; 2131, annular groove; 214, fourth flange; 220, rear flange assembly; 230, fixed cylinder; 240, resistance wire; 250, outer cylinder; 260, corrugated tube; 300, tail seal; 301, fifth flange; 302, sixth flange; 303, joint; 400, high-temperature heat pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be described clearly and completely below in connection with the drawings corresponding to the specific embodiments of the application. The detailed description of the embodiments of the application provided in the drawings below is not intended to limit the scope of the claimed application, and the described embodiments are only some of the embodiments of the application, but not all the embodiments. Based on the embodiments in the application, various different configurations can be arranged and designed, and all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the claimed application.

[0028] The application will be described below in connection with the drawings and with reference to specific embodiments:

[0029] Please refer to Figure 1 and Figure 2The application provides a heating device of high-temperature heat pipe, which comprises an electromagnetic induction heating assembly 100, a head sealing element 200 and a tail sealing element 300, the electromagnetic induction heating assembly 100 comprises a quartz glass tube 110, a positive plate 120, a negative plate 130, an electrode insulation plate 140 and a metal heating tube 150; the quartz glass tube 110 is adopted based on its resistance to extreme high temperature and sharp temperature change, good heat shock resistance and chemical stability, and can be suitable for the test of the high-temperature heat pipe 400; the high-temperature heat pipe 400 to be tested is placed in the quartz glass tube 110, and the high-temperature heat pipe 400 is inserted into the quartz glass tube from the tail sealing element 300 and connected with a vacuum pump group; the positive plate 120 and the negative plate 130 are both made of copper plate; the electrode insulation plate 140 is made of insulating material and is in the form of plate, which prevents the short circuit of the two electrodes; the positive plate 120, the electrode insulation plate 140 and the negative plate 130 are sequentially attached and arranged; the positive plate 120 and the negative plate 130 are separated by the electrode insulation plate 140 and placed beside the metal heating tube 150; the positive plate 120 and the negative plate 130 are used for connecting a high-frequency power supply; the high-frequency power supply is used for providing high-frequency low-voltage large-current input; the metal heating tube 150 is spirally wound around the circumference of the quartz glass tube 110 and is in the form of sleeve; the metal heating tube 150 is used for interacting with the high-frequency electromagnetic field generated by the positive plate 120 and the negative plate 130; the metal heating tube 150 has a fluid passage inside; the two ends of the metal heating tube 150 are respectively used for connecting with a cold source fluid; the head sealing element 200 and the tail sealing element 300 are respectively sealed at the two ends of the quartz glass tube 110; the head sealing element 200 and the tail sealing element 300 ensure the sealing of the front and rear ends of the quartz glass tube 110; the head sealing element 200 is used for connecting an operating end, such as an operating glove box; the tail sealing element 300 is used for connecting a vacuum pump group, which comprises a mechanical pump, a molecular pump and a vacuum gauge; since the metal heating tube 150 has a certain anti-deformation capacity and can bear the weight of the quartz glass tube 110 and the high-temperature heat pipe 400, an additional supporting device is not needed.

[0030] In some embodiments, the metal heating tube 150 comprises a plurality of heating coils 151 arranged along the quartz glass tube 110 from one end to the other end, the heating coils 151 are made of copper pipes, each of the heating coils 151 is wound on the circumference of the quartz glass tube 110 at intervals, and the two ends of each of the heating coils 151 are fixed on the positive plate 120 and the negative plate 130 respectively, and the two ends of each of the heating coils 151 are used for communicating with the cold source fluid. The lengths of the positive plate 120 and the negative plate 130 are determined according to the number of the heating coils 151, and the plurality of heating coils 151 are made of copper material, that is, the heating coils 151 are spiral copper pipes, the winding inner diameter of which is greater than the outer diameter of the quartz glass tube 110, and the two ends of each of the copper pipes can be press-fitted on the surface of the positive plate 120 and the negative plate 130 by a clamp, the outer surface of each of the heating coils 151 is coated with a high-temperature resistant insulating material to prevent the quartz glass tube 110 from being scratched. At the same time, by increasing the number of the heating coils 151, the heating device can be widely applied to repeatedly and rapidly heat various heat pipes with different lengths in the manufacturing and testing processes, and is suitable for heating heat pipes 400 with different lengths. Compared with heating by heat radiation in a vacuum, the plurality of heating coils 151 have the characteristics of fast heating speed and short heating time, and the plurality of heating coils 151 connected to the same power source have smaller circuit resistance and lower power loss than a long spiral pipe with the same length, the cooling water in the heating coils 151 has lower temperature rise due to the shorter length of the copper pipes, and the copper pipes have higher cooling effect.

[0031] In some embodiments, the positive plate 120, the electrode insulating plate 140 and the negative plate 130 are arranged at corresponding positions of the plurality of heating coils 151 along the placement direction of the quartz glass tube 110, and the outer sides of the positive plate 120 and the negative plate 130 are fixed by the two ends of the plurality of heating coils 151 respectively, such as the two ends of the plurality of heating coils 151 are press-fitted on the surface of the positive plate 120 and the negative plate 130 by a clamp. In some embodiments, at least one temperature measuring element 160 is further included, and the temperature measuring element 160 is arranged on the surface of the heat pipe 400 to be tested. The temperature measuring element 160 is an electric couple temperature sensor, and a plurality of electric couple temperature sensors can be arranged on the surface of the plurality of heat pipes 400 to measure temperature signals of different interest points.

[0032] Please refer to Figure 3 and Figure 4In some embodiments, the head seal 200 comprises a front flange assembly 210, a rear flange assembly 220, a fixed cylinder 230, a resistance wire 240, an outer cylinder 250, one end of the outer cylinder 250 is connected to the quartz glass tube 110 through the front flange assembly 210, the other end is connected to the operation end through the rear flange assembly 220, the fixed cylinder 230 is arranged in the outer cylinder 250, the resistance wire 240 is a armored heating resistance wire 240, the resistance wire 240 is wound on the outer periphery of the fixed cylinder 230 and is limited by the inner wall of the outer cylinder 250, and the high-temperature heat pipe 400 is heated by Joule heat generated by the resistance wire. The fixed cylinder 230 adopts a hollow cylinder structure to reduce the weight, a plurality of hollow holes arranged in an array can be arranged, and the fixed cylinder 230 is used for placing the high-temperature heat pipe 400 to be tested. In this way, the main body part of the high-temperature heat pipe 400 is heated in the quartz glass tube 110 by electromagnetic induction, the high-temperature heat pipe 400 placed in the outer cylinder 250 is heated by the armored heating resistance wire 240, and the high-temperature heat pipe 400 is heated in a radiation heating mode. The rear flange assembly 220 is a glove box flange and a knife-edge flange, the head seal 200 is connected to the operation glove box through the glove box flange and is connected to the outside through the knife-edge flange.

[0033] In some embodiments, the front flange assembly 210 comprises a first flange 211, a second flange 212 and a third flange 213 connected in sequence, the first flange 211 is sealingly fixed with the quartz glass tube 110, the second flange 212 clamps the end of the quartz glass tube 110, and the third flange 213 is connected to one end of the outer cylinder 250. In some embodiments, the head seal 200 further comprises a bellows 260 sleeved on the outside of the outer cylinder 250, and both ends of the bellows 260 are sealingly arranged in the front flange assembly 210 and the rear flange assembly 220. In some embodiments, the front flange assembly 210 further comprises a fourth flange 214 arranged between the third flange 213 and the bellows 260. Since the bellows 260 has a certain deflection, all components of the entire heating device except the glove box flange can be rotated by a certain angle, so that the high-temperature heat pipe 400 can be inclined by a certain angle, and the alkali metal can smoothly pass through the head seal 200. After the glove box flange is connected to the glove box, the high-temperature heat pipe 400 extends into the glove box, and a series of operations can be performed on the heat pipe in the glove box.

[0034] Specifically, the second flange 212 is divided into a large end surface and a small end surface, the inner surface of the small end surface has a protrusion for limiting the forward movement of the quartz glass tube 110, the small end surface is processed into a bevel, and the first flange 211 is sealed by the bevel, the sealing position is sealed by a sealing ring one, the sealing ring one is made of fluorine rubber material, the large end surface is provided with a cooling water circulation groove, the position of the groove is opposite to the sealing position of the third flange 213, and the sealing position is sealed by a sealing ring two, the sealing ring two is made of fluorine rubber material. The end surface of the first flange 211 is provided with a cooling water circulation groove, and the position of the groove is opposite to the bevel of the small end surface of the second flange 212. The end surface of the third flange 213 is provided with two groups of holes for mounting compression bolts, one group is a counterbore for connecting with the second flange 212, and the other group is a threaded hole for connecting with the fourth flange 214 through a sealing ring three. The outer cylinder 250 is a neck elongated cylinder structure, one end of which is welded with the third flange 213, and the other end is welded with a knife flange, the second flange 212 is tightly attached to the end surface of the third flange 213 and is provided with an annular groove 2131, which is used to facilitate the arrangement of the wire outlet port of the armored heating resistance wire 240 located in the outer cylinder 250 and to reduce the weight of the second flange 212 and the fourth flange 214, and the third flange 213 is provided with a wire outlet port, which is used for the wire outlet installation of the armored resistance wire 240. The armored heating resistance wire 240 has a certain bending strength, is wound on the outer surface of the fixed cylinder 230, is inserted into the fixed cylinder 230, and is limited by the outer surface of the fixed cylinder 230 and the inner wall of the outer cylinder 250 to prevent the armored resistance wire 240 from loosening. One end of the bellows 260 is welded with the fourth flange 214, and the other end is welded with a bellows glove box flange.

[0035] Please refer to Figure 5 In some embodiments, the tail sealing piece 300 includes a fifth flange 301, a sixth flange 302 and a joint 303 connected in sequence, the fifth flange 301 is connected to the end of the quartz glass tube 110, and the joint 303 is used for connecting with a vacuum pump group. Specifically, the sixth flange 302 has a protrusion inside for limiting the movement of the other end of the quartz glass tube 110, the sixth flange 302 at the tail of the quartz glass tube 110 is sealed by a bevel with the fifth flange 301, the sealing position is sealed by a sealing ring four, the sealing ring four is made of fluorine rubber, the fifth flange 301 is provided with a cooling water circulation groove, the position of the groove is opposite to the position of the sealing ring four, and the sealing ring four is cooled, the joint 303 is welded with the sixth flange 302 and is connected with a three-way interface, a vacuum pump group, a vacuum gauge and a thermocouple sensor wire outlet are connected with the three-way interface. The present application sets the vamp by the first flange 211 and the fifth flange 301, the joint is opened at the edge of the quartz glass tube 110, and the quartz glass tube 110 has a certain angle inclination ability.

[0036] In some embodiments, cooling pipes are arranged beside the positive plate 120 and the negative plate 130 and can be attached to circulate cooling fluid and dissipate heat from the positive plate 120 and the negative plate 130. The cooling fluid, such as cooling water, is introduced into the cooling pipes, and the two ends of the cooling pipes are connected to the spouts, and then the cooling water is connected to a cooling water circulation system through a hose.

[0037] The embodiment also provides an electromagnetic induction heating system, which includes a high-temperature heat pipe heating device, a vacuum system, a temperature measuring system, and a cooling water circulation system. The high-temperature heat pipe heating device further includes a high-frequency power supply, and the positive and negative electrodes of the high-frequency power supply are connected to the positive plate 120 and the negative plate 130, respectively. The vacuum system has a vacuum pump set, and the port of the vacuum pump set is connected to the joint 303 of the tail sealing member 300. The temperature measuring system includes a test terminal, such as a computer, which is connected to the temperature measuring member 160 through a wire and displays the test temperature data through the terminal. The cooling water circulation system provides circulating cooling water for the cooling pipes.

[0038] The following describes an embodiment of heating the high-temperature heat pipe 400 during the filling of the high-temperature heat pipe 400 with alkali metal:

[0039] According to the length of the high-temperature heat pipe 400, different numbers of heating spiral pipes 151 are selected, and the high-temperature heat pipe 400 to be filled is inserted from the tail sealing member and connected to the glove box at the head sealing member, and then vacuumized by the vacuum pump set. The main body of the high-temperature heat pipe 400 is heated by electromagnetic induction, the induction power supply is 100KW and 400HZ, the head of the high-temperature heat pipe 400 in the bellows 260 is heated by resistance radiation, so as to ensure that the liquid alkali metal can smoothly flow through this area, and multiple temperature measuring points are arranged on the high-temperature heat pipe 400 through the thermocouple sensor outlet end to measure the outer wall temperature of the high-temperature heat pipe 400. Before heating, the valve of the cooling water circulation system is opened to ensure that the spiral heating pipe and the cooling pipes adjacent to the positive plate 120 and the negative plate 130 are connected to circulating cooling water. During this process, the high-temperature heat pipe 400 needs to be high-temperature baked and degassed before the filling of the alkali metal, and the high-temperature heat pipe 400 also needs to be repeatedly heated at high temperature during the filling process. According to experimental tests, this heating device can heat the high-temperature heat pipe 400 to 800℃ within 1 minute and can cool the high-temperature heat pipe 400 from 800℃ to 100-200℃ within half an hour. Compared with heating the heat pipe in a metal vacuum cavity, it takes several hours to heat and cool to the same temperature. This heating device has the advantages of fast heating and fast cooling, and can repeatedly heat the high-temperature heat pipe 400 in a short time.

[0040] Regarding the specific embodiments of the present application, it should be noted that:

[0041] In the description of the application, unless otherwise clearly specified and limited, the terms "connection", "fixation", "communication" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral molding; "connection" can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, can be internal connection of two elements or interaction relationship between two elements, unless otherwise clearly limited; "communication" can be internal of two components and between two components, or space communication between the two, the two are connected directly or indirectly through the part forming the space. The terms "set", "install", "provided with", "configuration" and the like should also be understood in a broad sense. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0042] In the description of the application, the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the system or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. All directional indications are only used to explain the relative positional relationship, movement condition and the like between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0043] In the description of the application, the description of the terms "some embodiments", "optional embodiments", "examples", "specific examples", "optional examples" or "optional embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the application, but does not mean that all possible forms of the application are described and described by these embodiments. In the specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification.

[0044] The above detailed description together with examples will not be exhaustively described to limit the embodiments disclosed herein; rather, the above description together with examples will be understood in connection to explain the embodiments disclosed herein; the above description together with examples cannot be understood as a limitation on the embodiments disclosed herein. The technical solutions among the embodiments can be combined with each other, but it must be based on the implementation of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application. Although the embodiments of the present application have been shown and described, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application. It can be understood by those skilled in the art that various other specific changes and combination embodiments made according to the technical inspirations disclosed in the present application without departing from the essence of the present application are still within the protection scope defined by the claims of the present application and equivalent technical solutions.

Claims

1. A heating device for a high-temperature heat pipe, characterized in that, include: An electromagnetic induction heating assembly (100) includes a quartz glass tube (110), a positive electrode plate (120), a negative electrode plate (130), an electrode insulating plate (140), and a metal heating tube (150). A high-temperature heat pipe (400) to be tested is placed inside the quartz glass tube (110). The positive electrode plate (120) and the negative electrode plate (130) are separated by the electrode insulating plate (140) and placed next to the metal heating tube (150). The positive electrode plate (120) and the negative electrode plate (130) are used to connect to a high-frequency power supply. The metal heating tube (150) is spirally wound around the circumference of the quartz glass tube (110). The metal heating tube (150) is used to interact with the high-frequency electromagnetic field generated by the positive electrode plate (120) and the negative electrode plate (130). The metal heating tube (150) has a fluid channel inside. The two ends of the metal heating tube (150) are respectively used to connect to a cold source fluid. A head seal (200) and a tail seal (300) are respectively sealed at both ends of the quartz glass tube (110). The head seal (200) is used to connect the operating end, and the tail seal (300) is used to connect the vacuum pump assembly.

2. The heating device for a high-temperature heat pipe according to claim 1, characterized in that, The metal heating tube (150) includes multiple heating spiral tubes (151) arranged along one end of the quartz glass tube (110) to the other end. Each heating spiral tube (151) is wound around the circumference of the quartz glass tube (110) at intervals. The two ends of each heating spiral tube (151) are respectively fixed to the positive electrode plate (120) and the negative electrode plate (130). The two ends of each heating spiral tube (151) are respectively used to connect to the cold source fluid.

3. The heating device for a high-temperature heat pipe according to claim 2, characterized in that, The positive electrode plate (120), the electrode insulating plate (140), and the negative electrode plate (130) are positioned at corresponding positions on the multiple heating spiral tubes (151) along the placement direction of the quartz glass tube (110). The outer sides of the positive electrode plate (120) and the negative electrode plate (130) are fixed by the two ends of the multiple heating spiral tubes (151).

4. The heating device for a high-temperature heat pipe according to claim 1, characterized in that, It also includes at least one temperature measuring element (160) for placement on the surface of the high-temperature heat pipe (400) to be tested.

5. The heating device for a high-temperature heat pipe according to claim 1, characterized in that, The head seal (200) includes a front flange assembly (210), a rear flange assembly (220), a fixed cylinder (230), a resistance wire (240), and an outer cylinder (250). One end of the outer cylinder (250) is connected to the quartz glass tube (110) through the front flange assembly (210), and the other end is connected to the operating end through the rear flange assembly (220). The fixed cylinder (230) is located inside the outer cylinder (250). The resistance wire (240) is wound around the outer periphery of the fixed cylinder (230) and confined to the inner wall of the outer cylinder (250). The fixed cylinder (230) is used to place the high-temperature heat pipe (400) to be tested.

6. The heating device for a high-temperature heat pipe according to claim 5, characterized in that, The front flange assembly (210) includes a first flange (211), a second flange (212), and a third flange (213) connected in sequence. The first flange (211) is sealed and fixed to the quartz glass tube (110), the second flange (212) holds the end of the quartz glass tube (110), and the third flange (213) is connected to one end of the outer cylinder (250).

7. The heating device for a high-temperature heat pipe according to claim 6, characterized in that, The head seal (200) also includes a bellows (260) sleeved on the outside of the outer cylinder (250), with the two ends of the bellows (260) respectively sealed to the front flange assembly (210) and the rear flange assembly (220).

8. The heating device for a high-temperature heat pipe according to claim 7, characterized in that, The front flange assembly (210) further includes a fourth flange (214), which is disposed between the third flange (213) and the bellows (260).

9. The heating device for a high-temperature heat pipe according to any one of claims 6-8, characterized in that, The tail seal (300) includes a fifth flange (301), a sixth flange (302), and a connector (303) connected in sequence. The fifth flange (301) is connected to the end of the quartz glass tube (110), and the connector (303) is used to connect to the vacuum pump assembly.

10. The heating device for a high-temperature heat pipe according to claim 1, characterized in that, It also includes cooling pipes arranged on the positive electrode plate (120) and the negative electrode plate (130) for circulating cold source fluid and dissipating heat from the positive electrode plate (120) and the negative electrode plate (130).

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