Explosion-proof heat pipe

Abstract

The present application relates to the technical field of heating equipment, and specifically discloses an explosion-proof heat pipe, which includes a heating component and a wiring component. The heating component includes a hollow sealed metal column and a heating wire. The heating wire is fixedly arranged in the hollow sealed metal column. The heating wire is spiral-shaped and forms a spiral channel in the hollow sealed metal column. The heating wire is used to convert electrical energy into thermal energy. The outer wall of one end of the hollow sealed metal column is detachably provided with a wiring terminal. The wiring terminal is electrically connected to the heating wire. The wiring terminal is used to electrically connect to an electric wire to transmit current to the heating wire. The wiring component includes a metal tube. One end of the metal tube is detachably connected to one end of the hollow sealed metal column provided with the wiring terminal. The metal tube is used to shield the wiring terminal. The present application has the effect of improving the problem that the wiring of the existing explosion-proof heat pipe is inconvenient to inspect and repair.

Description

Technical Field

[0001] The present application relates to the technical field of heating equipment, and in particular to an explosion-proof heat pipe. Background Art

[0002] In modern industrial production, heat pipes, as a highly efficient heat conduction element, are widely used in various heating equipment. Especially in some flammable and explosive environments, the use of explosion-proof heat pipes is even more important.

[0003] However, existing explosion-proof heat pipe wiring connections are typically enclosed to prevent the risk of explosions from external sparks or arcs, significantly complicating routine inspection and maintenance. Because the wiring connections are hidden within complex protective structures, it's difficult for workers to visually inspect the connection status, such as whether they're loose, aged, or poorly connected.

[0004] Furthermore, when the wiring needs to be repaired, the complicated disassembly and reassembly process consumes a lot of time and manpower, reducing the production efficiency of the equipment. Summary of the Invention

[0005] In order to improve the problem that the connection points of existing explosion-proof heat pipes are inconvenient to inspect and repair, the present application provides an explosion-proof heat pipe.

[0006] The anti-explosion heat pipe provided in this application adopts the following technical solution:

[0007] An explosion-proof heat pipe, comprising:

[0008] A heating component, comprising a hollow sealed metal column and a heating wire, wherein the heating wire is fixedly disposed in the hollow sealed metal column, the heating wire being spirally shaped and forming a spiral channel in the hollow sealed metal column, the heating wire being used to convert electrical energy into thermal energy, and a terminal being detachably disposed on an outer wall of one end of the hollow sealed metal column, the terminal being electrically connected to the heating wire, and the terminal being used to electrically connect to an electric wire to transmit current to the heating wire;

[0009] The wiring assembly comprises a metal tube, one end of the metal tube is detachably connected to one end of the hollow sealed metal column provided with the wiring terminal, and the metal tube is used to shield the wiring terminal.

[0010] By adopting the above technical solution, the hollow sealed metal column serves as a carrier of the heating wire, providing a safer sealed environment, preventing the heating wire from being damaged or causing safety hazards due to external factors (such as dust, moisture, etc.) during operation. The spiral heating wire can increase the length of the heating wire and improve its heating efficiency. When current passes through the heating wire, the heating wire converts electrical energy into thermal energy to achieve heating; a terminal is detachably provided on the outer wall of one end of the hollow sealed metal column, and the terminal is electrically connected to the heating wire, so that the wire can be electrically connected to the heating wire through the terminal, and the installation and removal of the wire are more convenient, which is convenient for users to check and repair when needed, thereby improving the existing The problem of inconvenience in inspecting and repairing the connection points of explosion-proof heat pipes is that the metal tube can shield the connection terminals and protect them, preventing them from being adversely affected by external mechanical collisions, dust pollution or moisture erosion during operation, thereby extending the service life of the connection terminals, ensuring the reliability of their electrical connections, and playing a certain explosion-proof role. Even if the connection terminals fail in extreme cases, the metal tube can effectively block possible sparks or arcs to prevent them from causing greater safety hazards. When the connection terminals need to be inspected or repaired, the metal tube can be quickly removed to directly access the connection terminals, making it easier to inspect and repair the connection points.

[0011] Preferably, the wiring assembly also includes a connecting tube, one end of which is fixedly connected to the outer wall of the metal tube, the connecting tube is communicated with the metal tube, the connecting tube is used to allow the power wire to pass through the metal tube, and a closing piece is provided at one end of the connecting tube away from the metal tube, the closing piece is used to close the connecting tube when the power wire is not passed through, and to fix the power wire when the power wire is passed through.

[0012] By adopting the above technical solution, the connecting tube can provide an entry path for the wires, and can also prevent the wires from being cluttered or damaged due to random arrangement when entering the metal tube, thereby improving the neatness and reliability of the wiring point. The user can adjust the opening state of the connecting tube through the sealing piece. When the wires are not inserted, the sealing piece can tightly seal the opening of the connecting tube to prevent dust, moisture or other impurities from entering the interior of the connecting tube and the metal tube, protecting the terminal and the heating component from contamination or corrosion. When the explosion-proof heat pipe is not in use or idle for a long time, it can maintain the internal sealing and cleanliness. When the wires need to be inserted, the user can use the sealing piece to facilitate the wires to pass through the connecting tube and into the interior of the metal tube, and finally connect the wires to the terminal. After the wires are inserted, the sealing piece can further play the role of fixing the wires to prevent the wires from loosening or falling off due to external force during use, ensuring that the electrical connection between the wires and the terminal remains stable and reliable at all times.

[0013] Preferably, the closing member includes a flexible ring, a soft tooth portion and a blocking member, the flexible ring is fixedly arranged at one end of the connecting tube away from the metal tube, the outer wall of the flexible ring is fixedly connected to the inner wall of the connecting tube, the soft tooth portion is arranged on the inner wall of the flexible ring, the soft tooth portion and the flexible ring are integrally formed, the soft tooth portion includes a plurality of flexible protrusions, the soft tooth portion is used to abut against the wire when the wire is inserted to fix the position of the wire, the blocking member is detachably connected to the soft tooth portion, and the blocking member is used to block the connecting tube when the wire is not inserted.

[0014] By adopting the above technical solution, the flexible ring can fix the soft tooth part at the end of the connecting tube away from the metal tube. The soft tooth part is composed of several flexible protrusions, which can abut against the surface of the wire when the wire is inserted. Since the flexible protrusion has a certain elasticity, it can be deformed when the wire is inserted, so that it fits tightly to the outer wall of the wire, playing the role of fixing the position of the wire, and automatically adjusting the clamping force according to the diameter of the wire to avoid damage to the insulation layer of the wire due to excessive clamping force, or loosening of the wire due to insufficient clamping force; when the explosion-proof heat pipe is not in use or idle for a long time, there is no wire in the connecting tube, and the sealing piece can be installed on the soft tooth part to completely close the opening of the connecting tube to prevent dust, moisture or other impurities from entering the interior of the connecting tube, protecting the terminal and heating component from contamination or damage.

[0015] Preferably, the blocking piece is mushroom-shaped, the handle of the blocking piece is used to abut against the soft tooth portion, and the umbrella portion of the blocking piece is used to close the connecting pipe.

[0016] By adopting the above technical solution, when the sealing piece is installed at the opening of the connecting tube, the handle abuts against the flexible protrusion of the soft tooth part. Since the flexible protrusion of the soft tooth part has a certain elasticity, it can clamp the handle of the sealing piece to a certain extent, thereby realizing the installation of the sealing piece. It not only ensures that the sealing piece will not easily loosen or fall off when the wire is not inserted, but also can be conveniently removed when the wire needs to be inserted; the umbrella part can cover the opening of the connecting tube, thereby closing the connecting tube when the wire is not inserted, preventing external dust, moisture or other impurities from entering the interior of the connecting tube, and protecting the terminal and heating component from contamination or damage.

[0017] Preferably, the hollow sealed metal column is further provided with a ceramic plate and a sealant, the ceramic plate is fixedly connected to one end of the hollow sealed metal column close to the metal tube, and the sealant is fixedly connected to a side of the ceramic plate away from the metal tube.

[0018] By adopting the above technical solution, the ceramic material itself has certain insulation properties, which can prevent the current leakage generated by the heating wire during operation, thereby avoiding safety accidents caused by leakage, such as electric shock or short circuit, and the ceramic plate also has certain heat resistance and mechanical strength, and can remain stable in a high temperature environment, protecting the heating wire from external mechanical shock and thermal stress; the sealant can fill the gap between the ceramic plate and the hollow sealing metal column, and reduce the occurrence of gaps between the ceramic plate and the hollow sealing metal column caused by alternating hot and cold.

[0019] Preferably, a first magnesium oxide plate and a second magnesium oxide plate are fixedly arranged in the hollow sealed metal column, the first magnesium oxide plate is fixedly connected to the side of the sealant away from the ceramic plate, the second magnesium oxide plate is fixedly arranged at the end of the hollow sealed metal column away from the metal tube, and the first magnesium oxide plate and the second magnesium oxide plate are respectively fixedly connected to the two ends of the heating wire.

[0020] By adopting the above technical solution, magnesium oxide is a material with insulating and heat-resistant properties. The first magnesium oxide plate and the second magnesium oxide plate are arranged at both ends of the heating wire to fix and protect the heating wire, ensuring the stable position of the heating wire in the hollow sealed metal column, preventing it from being displaced due to vibration or thermal expansion during operation, and effectively isolating the electrical contact between the heating wire and the metal column to avoid the occurrence of short circuit. At the same time, the heat resistance of the magnesium oxide plate enables it to maintain structural stability in a high temperature environment, and will not undergo chemical changes or physical damage due to the high temperature generated by the heating wire, thereby extending the service life of the heating component.

[0021] Preferably, a magnesium oxide core rod is further provided in the hollow sealed metal column, both ends of the magnesium oxide core rod are fixedly connected to the first magnesium oxide plate and the second magnesium oxide plate respectively, and the magnesium oxide core rod is inserted into the spiral channel of the heating wire.

[0022] By adopting the above technical solution, since the heating wire is spiral-shaped, the heating wire will generate heat and be accompanied by a certain thermal expansion when working. The magnesium oxide core rod is inserted into the spiral channel of the heating wire, which can support the heating wire directly or indirectly, prevent the heating wire from deformation or displacement at high temperature, ensure the shape stability of the heating wire, and ensure that the relative position between the heating wire and the hollow sealed metal column remains unchanged.

[0023] Preferably, the hollow sealed metal column is further provided with magnesium oxide powder, and the magnesium oxide powder is filled between the hollow sealed metal column, the heating wire and the magnesium oxide core rod, and the magnesium oxide powder is used for insulation and heat conduction.

[0024] By adopting the above technical solution, magnesium oxide powder is filled between the heating wire and the hollow sealed metal column, which can isolate the electrical contact between the heating wire and the metal column and prevent the occurrence of leakage, thereby improving the safety of the explosion-proof heat pipe and ensuring the stable operation of the explosion-proof heat pipe in a high-voltage environment. Magnesium oxide powder has good thermal conductivity, and the heat generated by the heating wire can be transferred to the wall of the hollow sealed metal column through the magnesium oxide powder. The filling layer of magnesium oxide powder can ensure uniform heat distribution and avoid local overheating. During the operation of the heating wire, thermal expansion and vibration may affect its structural stability. The magnesium oxide powder filling layer can absorb these vibrations and expansion forces to a certain extent, acting as a buffer, thereby further protecting the heating wire and magnesium oxide core rod and preventing them from being damaged by mechanical stress.

[0025] Preferably, the outer wall of the hollow sealed metal column is further provided with a limiting protrusion, which is annular and arranged opposite to the first magnesium oxide plate to distinguish between the heating section and the non-heating section.

[0026] By adopting the above technical solution, the heating section refers to the area where the heating wire is located. This area will generate heat when powered on, while the non-heating section refers to the part of the hollow sealed metal column that is not directly involved in heating. It is usually used for connection, fixation or other auxiliary functions. A limiting protrusion is set on the outer wall of the hollow sealed metal column. The user can intuitively identify the position of the heating section and the non-heating section, which is convenient for assembly and debugging of the heating components during the production process.

[0027] Preferably, a metal plate is further included, and the metal plate is connected to the end of the metal tube away from the hollow sealing metal column to cover the wiring terminal.

[0028] By adopting the above technical solution, the metal plate can seal the metal tube, thereby preventing external dust, moisture, debris, etc. from entering the metal tube, avoiding short circuit, corrosion or other failures of the terminal due to environmental factors; in extreme cases, when the terminal fails or an arc is generated, the metal plate can play a blocking and isolation role, preventing the arc or spark from propagating to the external environment, thereby reducing the risk of explosion.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The hollow sealed metal column serves as a carrier of the heating wire, providing a relatively safe sealed environment to prevent the heating wire from being damaged or causing safety hazards due to external factors (such as dust, moisture, etc.) during operation. The spiral heating wire can increase the length of the heating wire and improve its heating efficiency. When current passes through the heating wire, the heating wire converts electrical energy into thermal energy to achieve heating; a terminal is detachably provided on the outer wall of one end of the hollow sealed metal column, and the terminal is electrically connected to the heating wire, so that the wire can be electrically connected to the heating wire through the terminal, and the installation and removal of the wire are more convenient, which is convenient for users to inspect and repair when needed, and improves the existing explosion-proof heat pipe connection The problem of inconvenience in inspection and maintenance of the wiring; the metal tube can shield the wiring terminals and protect them, preventing them from being adversely affected by external mechanical collisions, dust pollution or moisture erosion during operation, thereby extending the service life of the wiring terminals, ensuring the reliability of their electrical connections, and also playing a certain explosion-proof role. Even if the wiring terminals fail in extreme cases, the metal tube can effectively block possible sparks or arcs, preventing them from causing greater safety hazards. When the wiring terminals need to be inspected or repaired, the metal tube can be quickly removed to directly access the wiring terminals, making it easier to inspect and repair the wiring.

[0031] 2. The connecting tube can provide an entry path for the wires, and can also prevent the wires from being cluttered or damaged due to random arrangement when entering the metal tube, thereby improving the neatness and reliability of the wiring. The user can adjust the opening state of the connecting tube through the sealing piece. When no wires are inserted, the sealing piece can tightly seal the opening of the connecting tube to prevent dust, moisture or other impurities from entering the interior of the connecting tube and the metal tube, protecting the terminal blocks and heating components from contamination or corrosion. When the explosion-proof heat pipe is not in use or idle for a long time, it can maintain the internal sealing and cleanliness. When it is necessary to insert the wires, the user can use the sealing piece to facilitate the wires to pass through the connecting tube and into the metal tube, and finally connect the wires to the terminal blocks. After the wires are inserted, the sealing piece can further play a role in fixing the wires to prevent the wires from loosening or falling off due to external forces during use, thereby ensuring that the electrical connection between the wires and the terminal blocks always remains stable and reliable.

[0032] 3. The flexible ring can fix the soft tooth part at the end of the connecting tube away from the metal tube. The soft tooth part is composed of several flexible protrusions, which can abut against the surface of the wire when the wire is inserted. Since the flexible protrusion has a certain elasticity, it can be deformed when the wire is inserted, so as to fit closely to the outer wall of the wire, thereby fixing the position of the wire, and automatically adjusting the clamping force according to the diameter of the wire to avoid damage to the insulation layer of the wire due to excessive clamping force, or loosening of the wire due to insufficient clamping force; when the explosion-proof heat pipe is not in use or idle for a long time, there is no wire in the connecting tube, and the sealing piece can be installed on the soft tooth part to completely close the opening of the connecting tube to prevent dust, moisture or other impurities from entering the interior of the connecting tube, protecting the terminal and heating components from contamination or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the structure of the explosion-proof heat pipe in the embodiment of the present application;

[0034] Figure 2 Schematic diagram of the cross-sectional structure of the explosion-proof heat pipe when inserted into the electric wire in the embodiment of the present application;

[0035] Figure 3 is a schematic cross-sectional view of the wiring assembly in an embodiment of the present application when no wires are inserted;

[0036] Figure 4 1 is a schematic diagram of the cross-sectional structure of an explosion-proof heat pipe when inserted into an electric wire in another embodiment of the present application;

[0037] Figure 5 Schematic diagram of the structure of an explosion-proof heat pipe in another embodiment of the present application;

[0038] Figure 6 This is a schematic diagram of the cross-sectional structure of an explosion-proof heat pipe when it is inserted into an electric wire in another embodiment of the present application.

[0039] Explanation of the accompanying drawings: 1. Heating component; 11. Hollow sealed metal column; 12. Heating wire; 13. Wiring terminal; 14. Ceramic plate; 15. Sealant; 16. First magnesium oxide plate; 17. Second magnesium oxide plate; 18. Magnesium oxide core rod; 19. Magnesium oxide powder; 2. Wiring assembly; 21. Metal tube; 22. Connecting tube; 23. Closing part; 231. Flexible ring; 232. Soft tooth part; 233. Sealing part; 24. Metal plate; 3. Limiting protrusion; 4. Thin flow channel; 5. Coarse flow channel; 6. Diaphragm pump; 7. Grounding terminal. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-6 This application is described in further detail.

[0041] The present application discloses an explosion-proof heat pipe. Figure 1 and Figure 2 The explosion-proof heat pipe includes a heating component 1 and a wiring component 2.

[0042] like Figure 1 and Figure 2 As shown, the heating component 1 includes a hollow sealed metal column 11 and a heating wire 12. The heating wire 12 is fixedly arranged in the hollow sealed metal column 11. The heating wire 12 is spiral-shaped. The heating wire 12 forms a spiral channel in the hollow sealed metal column 11. The heating wire 12 is used to convert electrical energy into thermal energy. The outer wall of one end of the hollow sealed metal column 11 is detachably provided with a wiring terminal 13. The wiring terminal 13 is electrically connected to the heating wire 12. The wiring terminal 13 is used to be electrically connected to the wire to transmit current to the heating wire 12.

[0043] For example, in the embodiment of the present application, the hollow sealed metal column 11 is a stainless steel hollow sealed column, and the heating wire 12 is a nickel-chromium alloy wire; the hollow sealed metal column 11 serves as a carrier of the heating wire 12, providing a relatively safe sealed environment to prevent the heating wire 12 from being damaged or causing safety hazards due to external factors such as dust and moisture entering the hollow sealed metal column 11 during operation. The spiral heating wire 12 can increase the length of the heating wire 12 and improve its heating efficiency. When current passes through the heating wire 12, the heating wire 12 converts electrical energy into thermal energy to achieve heating.

[0044] Optionally, the terminal 13 in the embodiment of the present application adopts a high-heat-resistant terminal 13, including but not limited to a PA9 terminal or a TC-4004 terminal. The terminal 13 is used to connect to the live wire and the neutral wire in the electric wire, and is electrically connected to the heating wire 12.

[0045] like Figure 2 As shown, the hollow sealed metal column 11 is also provided with a ceramic plate 14 and a sealant 15. The ceramic plate 14 is fixedly connected to one end of the hollow sealed metal column 11 close to the metal tube 21, and the sealant 15 is fixedly connected to the side of the ceramic plate 14 away from the metal tube 21; the ceramic material itself has certain insulation properties, which can prevent the current generated by the heating wire 12 during operation from leaking, thereby avoiding safety accidents caused by leakage, such as electric shock or short circuit, and the ceramic plate 14 also has certain heat resistance and mechanical strength, and can remain stable in a high temperature environment, protecting the heating wire 12 from external mechanical shock and thermal stress; the sealant 15 can fill the gap between the ceramic plate 14 and the hollow sealed metal column 11, reduce the occurrence of gaps between the ceramic plate 14 and the hollow sealed metal column 11 caused by alternating hot and cold, and prevent air from entering the hollow sealed metal column 11; exemplary, the sealant 15 includes but is not limited to phenolic resin glue or inorganic high-temperature resistant glue.

[0046] In the embodiment of the present application, a first magnesium oxide plate 16 and a second magnesium oxide plate 17 are also fixedly arranged in the hollow sealed metal column 11. The first magnesium oxide plate 16 is fixedly connected to the side of the sealant 15 away from the ceramic plate 14, and the second magnesium oxide plate 17 is fixedly arranged at the end of the hollow sealed metal column 11 away from the metal tube 21. The first magnesium oxide plate 16 and the second magnesium oxide plate 17 are respectively fixedly connected to the two ends of the heating wire 12; magnesium oxide has certain insulation and heat resistance properties. The first magnesium oxide plate 16 and the second magnesium oxide plate 17 are arranged at both ends of the heating wire 12 to fix and protect the heating wire 12, ensuring the stable position of the heating wire 12 in the hollow sealed metal column 11, preventing it from being displaced due to vibration or thermal expansion during operation, and can also effectively isolate the electrical contact between the heating wire 12 and the metal column to avoid the occurrence of short circuit. At the same time, the heat resistance of the magnesium oxide plate enables it to maintain structural stability in a high temperature environment, and will not undergo chemical changes or physical damage due to the high temperature generated by the heating wire 12, thereby extending the service life of the heating component 1.

[0047] Please refer to Figure 2 A magnesium oxide core rod 18 is also provided in the hollow sealed metal column 11. The two ends of the magnesium oxide core rod 18 are fixedly connected to the first magnesium oxide plate 16 and the second magnesium oxide plate 17 respectively, and the magnesium oxide core rod 18 is inserted into the spiral channel of the heating wire 12; since the heating wire 12 is spiral, the heating wire 12 will generate heat and be accompanied by a certain thermal expansion when working. The magnesium oxide core rod 18 is inserted into the spiral channel of the heating wire 12, which can support the heating wire 12 directly or indirectly, prevent the heating wire 12 from deformation or displacement at high temperature, ensure the shape stability of the heating wire 12, and ensure that the relative position between the heating wire 12 and the hollow sealed metal column 11 remains unchanged.

[0048] For example, in the embodiment of the present application, the hollow sealed metal column 11 is further provided with magnesium oxide powder 19. The magnesium oxide powder 19 is filled between the hollow sealed metal column 11, the heating wire 12 and the magnesium oxide core rod 18. The magnesium oxide powder 19 is used for insulation and heat conduction. The magnesium oxide powder 19 is filled between the heating wire 12 and the hollow sealed metal column 11, which can isolate the electrical contact between the heating wire 12 and the metal column, prevent the occurrence of leakage, thereby improving the safety of the explosion-proof heat pipe and ensuring the stable operation of the explosion-proof heat pipe in a high voltage environment. The magnesium oxide powder 19 has good thermal conductivity, and the heat generated by the heating wire 12 can be conducted to the wall of the hollow sealed metal column 11 through the magnesium oxide powder 19. The filling layer of magnesium oxide powder 19 can ensure uniform heat distribution and avoid the occurrence of local overheating. During the operation of the heating wire 12, due to thermal expansion and vibration, its structural stability may be affected. The filling layer of magnesium oxide powder 19 can absorb these vibrations and expansion forces to a certain extent, and play a buffering role, thereby further protecting the heating wire 12 and the magnesium oxide core rod 18 and preventing them from being damaged due to mechanical stress.

[0049] like Figure 2 and Figure 3 As shown, the wiring assembly 2 includes a metal tube 21, a connecting tube 22, a closure 23 and a metal plate 24. One end of the metal tube 21 is detachably connected to one end of the hollow sealed metal column 11 provided with a wiring terminal 13, and the metal tube 21 is used to cover the wiring terminal 13; the outer wall of one end of the hollow sealed metal column 11 is detachably provided with a wiring terminal 13, and the wiring terminal 13 is electrically connected to the heating wire 12, so that the wire can be electrically connected to the heating wire 12 through the wiring terminal 13, and makes the installation and removal of the wire more convenient, which is convenient for users to inspect and repair when needed, and improves the problem that the existing explosion-proof heat pipe wiring is inconvenient to inspect and repair.

[0050] The metal tube 21 can shield the terminal block 13, thereby protecting the terminal block 13 and preventing the terminal block 13 from being adversely affected by external mechanical collisions, dust pollution or moisture erosion during operation, thereby extending the service life of the terminal block 13, ensuring the reliability of its electrical connection, and playing a certain explosion-proof role. Even if the terminal block 13 fails in extreme cases, the metal tube 21 can effectively block possible sparks or arcs to prevent them from causing greater safety hazards. When the terminal block 13 needs to be inspected or repaired, the metal tube 21 can be quickly removed to directly access the terminal block 13, facilitating inspection and repair of the connection point.

[0051] like Figure 2 and Figure 3 As shown, one end of the connecting tube 22 is fixedly connected to the outer wall of the metal tube 21, the connecting tube 22 is communicated with the metal tube 21, the connecting tube 22 is used to allow the power line to pass through the metal tube 21, and a closing piece 23 is provided at one end of the connecting tube 22 away from the metal tube 21. The closing piece 23 is used to close the connecting tube 22 when the wire is not passed through, and to fix the wire when the wire is passed through.

[0052] Exemplarily, the metal tube 21 and the connecting tube 22 are both stainless steel tubes, and the metal tube 21 is grounded to the ground terminal 7 through any line; the connecting tube 22 can provide a path for the wires to pass through, and can also prevent the wires from being messy or damaged due to random arrangement when entering the metal tube 21, thereby improving the neatness and reliability of the wiring. The user can adjust the opening state of the connecting tube 22 through the sealing member 23. When no wire is passed through, the sealing member 23 can tightly seal the opening of the connecting tube 22 to prevent dust, moisture or other impurities from entering the connecting tube 22 and the metal tube 21. The sealing member 23 is used to protect the terminal 13 and the heating element 1 from being polluted or corroded, and the internal sealing and cleanliness can be maintained when the explosion-proof heat pipe is not in use or idle for a long time. When the wires need to be inserted, the user can use the sealing member 23 to facilitate the wires to pass through the connecting tube 22 and enter the interior of the metal tube 21, and finally connect the wires to the terminal 13. After the wires are inserted, the sealing member 23 can further play the role of fixing the wires to prevent the wires from loosening or falling off due to external forces during use, thereby ensuring that the electrical connection between the wires and the terminal 13 is always stable and reliable.

[0053] Please refer to Figure 3 The closure member 23 includes a flexible ring 231, a soft tooth portion 232 and a blocking member 233. The flexible ring 231 is fixedly arranged at the end of the connecting tube 22 away from the metal tube 21. The outer wall of the flexible ring 231 is fixedly connected to the inner wall of the connecting tube 22. The soft tooth portion 232 is arranged on the inner wall of the flexible ring 231. The soft tooth portion 232 and the flexible ring 231 are integrally formed. The soft tooth portion 232 includes a plurality of flexible protrusions. The soft tooth portion 232 is used to abut against the wire when the wire is inserted to fix the position of the wire. The blocking member 233 is used to block the connecting tube 22 when the wire is not inserted. The flexible ring 231 can fix the soft tooth portion 232 at the end of the connecting tube 22 away from the metal tube 21. The soft tooth portion 232 is formed by some It is composed of several flexible protrusions, which can abut against the surface of the wire when the wire is inserted. Since the flexible protrusion has a certain elasticity, it can be deformed when the wire is inserted, so as to fit tightly to the outer wall of the wire, thereby fixing the position of the wire and avoiding the loosening of the wire due to insufficient clamping force; when the explosion-proof heat pipe is not in use or idle for a long time, there is no wire in the connecting tube 22, and the sealing member 233 can be installed on the soft tooth portion 232, so as to completely close the opening of the connecting tube 22, preventing dust, moisture or other impurities from entering the interior of the connecting tube 22, and protecting the terminal 13 and the heating component 1 from contamination or damage; the flexible ring 231 and the soft tooth portion 232 include but are not limited to rubber or silicone materials.

[0054] Exemplarily, the blocking piece 233 is mushroom-shaped, and the handle of the blocking piece 233 is used to abut against the soft tooth portion 232, and the umbrella portion of the blocking piece 233 is used to close the connecting tube 22; when the blocking piece 233 is installed at the opening of the connecting tube 22, the handle abuts against the flexible protrusion of the soft tooth portion 232. Since the flexible protrusion of the soft tooth portion 232 has a certain elasticity, it can clamp the handle of the blocking piece 233 to a certain extent, thereby realizing the installation of the blocking piece 233, which not only ensures that the blocking piece 233 will not easily loosen or fall off when the wire is not inserted, but also enables the blocking piece 233 to be conveniently removed when the wire needs to be inserted; the umbrella portion can cover the opening of the connecting tube 22, thereby closing the connecting tube 22 when the wire is not inserted, preventing external dust, moisture or other impurities from entering the interior of the connecting tube 22, and protecting the terminal 13 and the heating component 1 from contamination or damage; the blocking piece 233 includes but is not limited to rubber or polyvinyl chloride materials.

[0055] like Figure 3 As shown, the metal plate 24 is threadedly connected to the end of the metal tube 21 away from the hollow sealed metal column 11 to cover the terminal 13; the metal plate 24 can seal the metal tube 21, thereby preventing external dust, moisture, debris, etc. from entering the metal tube 21, avoiding short circuit, corrosion or other failures of the terminal 13 due to environmental factors; in extreme cases, when the terminal 13 fails or an arc is generated, the metal plate 24 can play a blocking and isolation role to prevent the arc or spark from spreading to the external environment, thereby reducing the risk of explosion.

[0056] like Figure 1 and Figure 2 As shown, in the embodiment of the present application, the outer wall of the hollow sealed metal column 11 is also provided with a limiting protrusion 3, which is annular and arranged opposite to the first magnesium oxide plate 16, and is used to distinguish between the heating section and the non-heating section; the heating section usually refers to the area where the heating wire 12 is located, which will generate heat during operation, while the non-heating section refers to the part of the hollow sealed metal column 11 that is not directly involved in heating, and is usually used for auxiliary functions such as connection, fixation or power line insertion. The limiting protrusion 3 is provided on the outer wall of the hollow sealed metal column 11, and the user can intuitively identify the position of the heating section and the non-heating section, which is convenient for assembling and debugging the heating component 1 during the production process.

[0057] In another embodiment of the present application, please refer to Figure 4The ceramic plate 14 is not arranged in the hollow sealing metal column 11. The ceramic plate 14 in this embodiment is fixedly arranged between the wiring terminal 13 and the hollow sealing metal column 11, and the side of the sealant 15 away from the wiring terminal 13 is fixedly connected to the side of the first magnesium oxide plate 16 away from the second magnesium oxide plate 17; the ceramic plate 14 is not arranged inside the hollow sealing metal column 11, but is fixedly arranged between the wiring terminal 13 and the hollow sealing metal column 11, so that the ceramic plate 14 can directly contact the wiring terminal 13, play the role of insulating and protecting the wiring terminal 13, and prevent electrical contact between the wiring terminal 13 and the hollow sealing metal column 11, thereby reducing the occurrence of the hollow sealing metal column 11 being charged.

[0058] Please refer to Figure 5 As shown in FIG6 , in another embodiment of the present application, on the basis of another embodiment of the present application, a plurality of thin flow channels 4 are spirally opened in the wall of the hollow sealing metal column 11, and the plurality of thin flow channels 4 are arranged in parallel. One end of the plurality of thin flow channels 4 away from the wiring terminal 13 is connected to the external environment at the outer wall of the hollow sealing metal column 11, and one end of the plurality of thin flow channels 4 close to the wiring terminal 13 is connected to form a coarse flow channel 5, and the coarse flow channel 5 is connected to the diaphragm pump 6 through a pipeline.

[0059] Exemplarily, the diaphragm pump 6 includes but is not limited to a QBY pneumatic pump or a 3KM high-pressure pump. The diaphragm pump 6 is configured to periodically evacuate and blow air so that the fluid periodically enters and flows out of the hollow sealed metal column 11 from the flow channel, and the fluid is filtered water; the fluid is heated by the periodic flow of the fluid, which can improve the heating efficiency of the fluid; the spiral and parallel distributed several fine flow channels 4 increase the contact area of ​​the fluid, further improving the heating efficiency of the fluid.

[0060] Moreover, the fluid ejected after heating can stir the fluid around the hollow sealed metal column 11, which not only accelerates the heat transfer, but also breaks the temperature gradient of the fluid around the side, thereby improving the heat exchange efficiency; the periodic inhalation and ejection of fluid can avoid local overheating of the hollow sealed metal column 11 or overheating of the non-heating section, thereby avoiding the bursting of the hollow sealed metal column 11.

[0061] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An explosion-proof heat pipe, characterized in that: include: A heating component (1) comprises a hollow sealed metal column (11) and a heating wire (12), wherein the heating wire (12) is fixedly arranged in the hollow sealed metal column (11), the heating wire (12) is spiral-shaped, and the heating wire (12) forms a spiral channel in the hollow sealed metal column (11), and the heating wire (12) is used to convert electrical energy into thermal energy, and a terminal (13) is detachably provided on the outer wall of one end of the hollow sealed metal column (11), the terminal (13) is electrically connected to the heating wire (12), and the terminal (13) is used to be electrically connected to an electric wire to transmit current to the heating wire (12); A wiring assembly (2) comprising a metal tube (21), one end of the metal tube (21) being detachably connected to one end of the hollow sealed metal column (11) provided with the wiring terminal (13), the metal tube (21) being used to shield the wiring terminal (13); The wiring assembly (2) further comprises a connecting tube (22), one end of which is fixedly connected to the outer wall of the metal tube (21), the connecting tube (22) being in communication with the metal tube (21), the connecting tube (22) being used for allowing the power line to pass through the metal tube (21), and a closing member (23) being provided at one end of the connecting tube (22) away from the metal tube (21), the closing member (23) being used for closing the connecting tube (22) when no power line is passed through, and for fixing the power line when the power line is passed through. The closure member (23) comprises a flexible ring (231), a soft tooth portion (232) and a blocking member (233). The flexible ring (231) is fixedly arranged at one end of the connecting tube (22) away from the metal tube (21). The outer wall of the flexible ring (231) is fixedly connected to the inner wall of the connecting tube (22). The soft tooth portion (232) is arranged on the inner wall of the flexible ring (231). The soft tooth portion (232) and the flexible ring (231) are integrally formed. The soft tooth portion (232) comprises a plurality of flexible protrusions. The soft tooth portion (232) is used to abut against the wire when the wire is inserted to fix the position of the wire. The blocking member (233) is detachably connected to the soft tooth portion (232). The blocking member (233) is used to block the connecting tube (22) when the wire is not inserted into the connecting tube (22).

2. The explosion-proof heat pipe according to claim 1, characterized in that: The blocking piece (233) is mushroom-shaped, the handle of the blocking piece (233) is used to abut against the soft tooth portion (232), and the umbrella portion of the blocking piece (233) is used to seal the connecting pipe (22).

3. The explosion-proof heat pipe according to claim 1, characterized in that: A ceramic plate (14) and a sealant (15) are further provided in the hollow sealing metal column (11); the ceramic plate (14) is fixedly connected to one end of the hollow sealing metal column (11) close to the metal tube (21); and the sealant (15) is fixedly connected to a side of the ceramic plate (14) away from the metal tube (21).

4. The explosion-proof heat pipe according to claim 3, characterized in that: A first magnesium oxide plate (16) and a second magnesium oxide plate (17) are also fixedly arranged in the hollow sealed metal column (11); the first magnesium oxide plate (16) is fixedly connected to the side of the sealant (15) away from the ceramic plate (14); the second magnesium oxide plate (17) is fixedly arranged at the end of the hollow sealed metal column (11) away from the metal tube (21); the first magnesium oxide plate (16) and the second magnesium oxide plate (17) are respectively fixedly connected to the two ends of the heating wire (12).

5. The explosion-proof heat pipe according to claim 4, characterized in that: A magnesium oxide core rod (18) is also provided in the hollow sealed metal column (11), and the two ends of the magnesium oxide core rod (18) are fixedly connected to the first magnesium oxide plate (16) and the second magnesium oxide plate (17), respectively. The magnesium oxide core rod (18) is inserted into the spiral channel of the heating wire (12).

6. The explosion-proof heat pipe according to claim 5, characterized in that: The hollow sealed metal column (11) is further provided with magnesium oxide powder (19), and the magnesium oxide powder (19) is filled between the hollow sealed metal column (11), the heating wire (12) and the magnesium oxide core rod (18), and the magnesium oxide powder (19) is used for insulation and heat conduction.

7. The explosion-proof heat pipe according to claim 5, characterized in that: The outer wall of the hollow sealing metal column (11) is further provided with a limiting protrusion (3), the limiting protrusion (3) being annular and arranged opposite to the first magnesium oxide plate (16) for distinguishing between a heating section and a non-heating section.

8. The explosion-proof heat pipe according to claim 1, characterized in that: It also includes a metal plate (24), which is connected to one end of the metal tube (21) away from the hollow sealing metal column (11) to shield the connecting terminal (13).

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