Modularized explosion-proof heater and working method thereof

Abstract

The invention relates to the technical field of anti-explosion heaters, and discloses a modular anti-explosion heater and a working method thereof.The modular anti-explosion heater comprises an outer box, a baffle is slidably connected to the interior of the outer box, a pull rod is fixedly connected to the outer wall of the baffle, and a sheath nail is slidably connected to the inner wall of the pull rod; a heat dissipation mechanism is fixedly connected to the outer wall, away from one side of the pull rod, of the baffle, a heater body is attached to the outer wall of the heat dissipation mechanism, the outer wall of the heater body is attached to the inner wall of the outer box, a bolt is arranged in the heater body, and the outer wall of the bolt is in threaded connection with the interior of the outer box; and a detector is fixedly arranged on the inner wall of the outer box. The temperature of the heater body is monitored in real time by means of the detector, when it is detected that the temperature is abnormal or the environment temperature is high, the pull rod is pulled to drive the heat dissipation mechanism to act, the positioning rod rotates, the attaching plate and the fins are attached to the outer wall of the heater body, targeted heat dissipation is achieved in cooperation with the opened outer box, and the situation that use is affected by too high temperature is avoided.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof heater technology, specifically to a modular explosion-proof heater and its operating method. Background Technology

[0002] Explosion-proof heaters are heating devices that can operate safely in flammable and explosive environments (such as chemical workshops and oil and gas storage areas). Their core is to use special structural designs (such as explosion-proof shells and flame-retardant cables) to block the contact between electric sparks and high-temperature surfaces that may be generated during the heating process and external flammable media, thereby preventing explosion accidents. Modular design refers to disassembling the entire equipment into multiple functionally independent unit modules with unified interfaces (such as heating modules, control modules, and wiring modules). Each module can be manufactured, assembled, repaired, or replaced separately, greatly improving the flexibility and ease of maintenance of the equipment.

[0003] Currently, most existing explosion-proof heaters are implemented with an integrated structure, where the heating element is fixedly connected to the shell and control components. Basic safety protection is achieved through a preset temperature protection device. When the equipment detects that its temperature exceeds the set threshold, it usually cuts off the power to forcibly stop heating to avoid overheating. However, in use, relying on cutting off the power or fixing the heat dissipation structure results in insufficient heat dissipation efficiency and makes it difficult to effectively deal with abnormal temperature situations. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a modular explosion-proof heater and its operating method, which solves the problem that relying on power cut-off or fixed heat dissipation structures leads to insufficient heat dissipation efficiency and difficulty in effectively coping with abnormal temperature conditions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a modular explosion-proof heater, comprising an outer casing, a baffle slidably connected inside the outer casing, a pull rod fixedly connected to the outer wall of the baffle, a sheath pin slidably connected to the inner wall of the pull rod, a heat dissipation mechanism fixedly connected to the outer wall of the baffle on the side away from the pull rod, a heater body attached to the outer wall of the heat dissipation mechanism, the outer wall of the heater body attached to the inner wall of the outer casing, a bolt disposed inside the heater body, the outer wall of the bolt threadedly connected to the inside of the outer casing, a detector fixedly disposed on the inner wall of the outer casing, limit mechanisms fixedly disposed on both sides of the outer wall of the outer casing, a bottom shell fixedly disposed on the outer wall of the limit mechanisms, a lifting mechanism disposed inside the bottom shell, and the outer wall of the lifting mechanism fixedly connected to the lower surface of the outer casing.

[0006] Preferably, the heat dissipation mechanism includes a connecting rod, the outer wall of which is fixedly connected to the outer wall of a baffle. A first support plate is fixedly connected to the outer wall of the connecting rod. A limiting plate is fixedly connected to the outer wall of the first support plate. A first connecting column is rotatably connected inside the limiting plate. A positioning rod is rotatably connected to the outer wall of the first connecting column. A second connecting column is rotatably connected to the inner wall of the positioning rod. A positioning bracket is fixedly connected to the outer wall of the second connecting column. A limiting roller is provided on the outer wall of the second connecting column. A support rod is rotatably connected inside the limiting roller. A positioning block is fixedly connected to the outer wall of the support rod. A connecting block is fixedly connected to the outer wall of the positioning bracket. A bonding plate is fixedly connected to the outer wall of the connecting block. Fins are evenly distributed on the outer wall of the bonding plate. The outer wall of the bonding plate is bonded to the outer wall of the heater body.

[0007] Preferably, the outer wall of the limiting plate is slidably connected to the inside of the outer box, and the outer wall of the first support plate is slidably connected to the inner wall of the outer box.

[0008] Preferably, the outer wall of the positioning block is fixedly connected to the inner wall of the outer box, and the outer wall of the positioning bracket is attached to the outer wall of the support plate.

[0009] Preferably, the limiting mechanism includes a first fixing block, which is disposed on both sides of the outer wall of the outer box. A column is fixedly connected to the upper surface of the first fixing block, and a second fixing block is slidably connected to the outer wall of the column. A limiting post is fixedly connected to the upper surface of the column.

[0010] Preferably, the outer wall of the second fixing block is fixedly connected to both sides of the outer wall of the outer box, and the outer wall of the limiting post is attached to the outer wall of the second fixing block.

[0011] Preferably, the lifting mechanism includes a bidirectional threaded rod, the outer wall of which is disposed inside the bottom shell, a crank handle is fixedly connected to the outer end of the bidirectional threaded rod, sliders are threadedly connected to both sides of the outer wall of the bidirectional threaded rod, a vertical block is fixedly connected to the upper surface of the slider, a connecting plate is rotatably connected to the inside of the vertical block, a vertical plate is rotatably connected to the outer wall of the connecting plate, the upper surface of the vertical plate is fixedly connected to the lower surface of the outer box, and a fixing block is rotatably connected to the middle of the outer wall of the bidirectional threaded rod.

[0012] Preferably, the outer wall of the slider is slidably connected to the inner wall of the bottom shell, and the lower surface of the fixing block three is fixedly connected to the inside of the bottom shell.

[0013] Preferably, the outer wall of the fixing block is fixedly connected to the outer wall of the bottom shell, and the upper surface of the bottom shell is attached to the outer wall of the outer box.

[0014] Preferably, a method for operating a modular explosion-proof heater includes the following steps:

[0015] S1: The heater body is fixed inside the outer casing by bolts. The heating element inside the heater body converts electrical energy into heat energy based on the Joule effect and transfers it to the medium through direct contact.

[0016] S2: Pull out the sheath pin and pull the lever to move the baffle and heat dissipation mechanism, so that the positioning rod in the heat dissipation mechanism rotates around the connecting column and pushes the positioning bracket to rotate until the bonding plate and fins are in contact with the outer wall of the heater body. Insert the sheath pin into the outer box to fix the lever and baffle position, and the outer box will open.

[0017] S3: Pull the lever in the opposite direction to close the baffle and insert the sheath nail into the outer box to fix it in place;

[0018] S4: The crank in the rotary lifting mechanism drives the bidirectional threaded rod to rotate, causing the slider to move the vertical block, connecting plate and vertical plate. It works in conjunction with the limit mechanism to adjust the height of the outer box. After the operation is completed, the crank is rotated in the opposite direction to reset the outer box.

[0019] This invention provides a modular explosion-proof heater and its operating method. It has the following beneficial effects:

[0020] 1. This invention uses a detector to monitor the heater body temperature in real time. When an abnormal temperature is detected or the ambient temperature is high, the heat dissipation mechanism is activated by pulling the lever, causing the positioning rod to rotate and the bonding plate and fins to fit against the outer wall of the heater body. This, combined with the opened outer casing, achieves targeted heat dissipation and avoids excessive temperature affecting use.

[0021] 2. When heat dissipation is not required, the pull rod is pulled in the opposite direction to close the baffle, and then the sheath pin is inserted into the outer casing to fix the position. This can prevent external dust from sticking to the outer wall of the heater body, prevent heat accumulation caused by dust accumulation, and ensure the stable operation of the heater body.

[0022] 3. This invention drives the bidirectional threaded rod to rotate by rotating the crank handle, and in conjunction with the limiting mechanism, the slider drives the upright block, connecting plate and upright plate to move, thereby adjusting the height of the outer box. It can be adapted to a suitable operating position according to the height of the staff, reducing the difficulty of maintenance and operation.

[0023] 4. The present invention uses bolts to fix the heater body to the outer casing. When it is necessary to inspect or clean the outer casing, the heater body can be disassembled simply by turning the bolts, without complicated disassembly steps, which effectively improves the efficiency of maintenance operations. Attached Figure Description

[0024] Figure 1 This is a perspective view of a modular explosion-proof heater according to the present invention;

[0025] Figure 2 This is a partial structural diagram of the baffle of a modular explosion-proof heater according to the present invention;

[0026] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the outer casing of a modular explosion-proof heater according to the present invention;

[0027] Figure 4 This is a schematic diagram of a partial bolt structure of a modular explosion-proof heater according to the present invention;

[0028] Figure 5 This is a partial structural diagram of the tie rod of a modular explosion-proof heater according to the present invention;

[0029] Figure 6 This is a partial structural diagram of the limiting plate of a modular explosion-proof heater according to the present invention;

[0030] Figure 7 This is a partial structural diagram of the support plate of a modular explosion-proof heater according to the present invention;

[0031] Figure 8 This is a partial structural diagram of the bottom shell of a modular explosion-proof heater according to the present invention;

[0032] Figure 9 This is a flowchart illustrating the operation of a modular explosion-proof heater according to the present invention.

[0033] The components are as follows: 1. Outer casing; 2. Baffle; 3. Pull rod; 4. Sheath pin; 5. Heat dissipation mechanism; 501. Connecting rod; 502. Limiting plate; 503. Support plate one; 504. Connecting column one; 505. Positioning rod; 506. Connecting column two; 507. Positioning bracket; 508. Limiting roller; 509. Support rod; 510. Positioning block; 511. Connecting block; 512. Adhesive plate; 513. Fin; 6. Heater body; 7. Bolt; 8. Detector; 9. Limiting mechanism; 901. Fixing block one; 902. Column; 903. Fixing block two; 904. Limiting column; 10. Bottom shell; 11. Lifting mechanism; 1101. Handle; 1102. Bidirectional threaded rod; 1103. Slider; 1104. Stand block; 1105. Connecting plate; 1106. Stand plate; 1107. Fixing block three. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see the appendix Figure 1 -Appendix Figure 4This invention provides a modular explosion-proof heater, including an outer casing 1. A baffle 2 is slidably connected inside the outer casing 1. A pull rod 3 is fixedly connected to the outer wall of the baffle 2. A sheath pin 4 is slidably connected to the inner wall of the pull rod 3. A heat dissipation mechanism 5 is fixedly connected to the outer wall of the baffle 2 on the side away from the pull rod 3. A heater body 6 is attached to the outer wall of the heat dissipation mechanism 5. The outer wall of the heater body 6 is attached to the inner wall of the outer casing 1. A bolt 7 is provided inside the heater body 6. The outer wall of the bolt 7 is threadedly connected to the inside of the outer casing 1. A detector 8 is fixedly provided on the inner wall of the outer casing 1. Limiting mechanisms 9 are fixedly provided on both sides of the outer wall of the outer casing 1. A bottom shell 10 is fixedly provided on the outer wall of the limiting mechanism 9. A lifting mechanism 11 is provided inside the bottom shell 10. The outer wall of the lifting mechanism 11 is fixedly connected to the lower surface of the outer casing 1.

[0036] Specifically, firstly, the heating element inside the heater body 6 utilizes the Joule effect; current flows through the element's resistance, generating heat and converting electrical energy into thermal energy. This heat is then transferred to the medium through direct contact, achieving the heating purpose. The outer casing 1 and the heater body 6 are fixed together with bolts 7, allowing for easy disassembly of the heater body 6 by simply loosening the bolts 7 when the outer casing 1 needs inspection or cleaning, improving work efficiency. The outer casing 1 also supports and limits the other components. When the heater body 6 starts heating and the external ambient temperature is high, and the detector 8 shows an abnormally high temperature for the heater body 6, the sheath pin 4 is pulled outwards, and the pull rod 3 is pulled, causing the sheath pin 4 to enter the outer casing 1. The outer casing 1 is opened, and it fixes the direction and position of the sheath nail 4 to prevent changes in its position and direction during movement. While the sheath nail 4 moves, the heat dissipation mechanism 5 is attached to the outer wall of the heater body 6. At this time, the excess heat of the heater body 6 is carried away by the airflow and the heat dissipation mechanism 5, thus achieving heat dissipation and preventing the heater body 6 from overheating and damaging the heated components inside. When not in use, the baffle 2 is closed to prevent dust from sticking to the outer wall of the heater body 6, which would lead to severe heat accumulation. At the same time, the lifting mechanism 11 can be adjusted to a suitable position for workers during inspection, improving the processing progress.

[0037] Please see the appendix Figure 2 -Appendix Figure 7The heat dissipation mechanism 5 includes a connecting rod 501. The outer wall of the connecting rod 501 is fixedly connected to the outer wall of the baffle 2. A support plate 503 is fixedly connected to the outer wall of the connecting rod 501. A limiting plate 502 is fixedly connected to the outer wall of the support plate 503. A connecting column 504 is rotatably connected inside the limiting plate 502. A positioning rod 505 is rotatably connected to the outer wall of the connecting column 504. A connecting column 506 is rotatably connected inside the positioning rod 505. A positioning bracket 507 is fixedly connected to the outer wall of the connecting column 506. A limiting roller 508 is provided on the outer wall of the connecting column 506. A support rod 509 is rotatably connected inside the limiting roller 508. A positioning block 510 is fixedly connected to the outer wall of the support rod 509. A connecting block 511 is fixedly connected to the outer wall of the positioning bracket 507. A bonding plate 512 is fixedly connected to the outer wall of the connecting block 511. Fins 513 are evenly arranged on the outer wall of the bonding plate 512. The outer wall of the bonding plate 512 is bonded to the outer wall of the heater body 6.

[0038] Specifically, after detection by detector 8, the sheath nail 4 is pulled outward and the pull rod 3 is moved. The pull rod 3 simultaneously moves the sheath nail 4 and the baffle 2, causing the baffle 2 to move the support plate 503. The limiting plate 502 is placed inside the outer casing 1 to ensure that the support plate 503 will not fall off, while limiting the direction and position of the support plate 503's movement, preventing the support plate 503 from falling off or shifting. Thus, the support plate 503 drives the connecting column 504 and the positioning rod. When positioning rod 505 moves, it synchronously drives connecting column 506 to move. When positioning rod 505 contacts the outer wall of limiting roller 508, and because the positions of positioning block 510 and support rod 509 inside limiting roller 508 are fixed, positioning rod 505 rotates around the central axis of connecting column 504, thereby driving positioning bracket 507 to rotate. The limiting roller 508, support rod 509, and positioning block 510 are used to limit the position of positioning rod 505, ensuring proper positioning. The rotatable rod 505 causes the connecting block 511 to move the bonding plate 512, pulling the lever 3 continuously until the bonding plate 512 is completely bonded to the outer wall of the heater body 6, or until the sheath pin 4 is aligned with the matching slot on the outer wall of the outer casing 1. Then, the sheath pin 4 is inserted into the outer casing 1 to fix the position of the lever 3 and the baffle 2. At this time, the bonding plate 512 is completely bonded to the outer wall of the heater body 6, and the outer casing 1 is in an open state. Through the action of air and the use of fins 513, excess heat inside the heater body 6 is carried out and the heater body 6 is cooled. This achieves the effect of opening the outer casing 1 when the heater body 6 is overheated, allowing the heater body 6 to dissipate heat through the action of fins 513 and air, preventing damage to the heated components inside. When no longer needed, the outer casing 1 can be closed to prevent dust from sticking to the outer wall of the heater body 6, which would cause severe heat accumulation during heating.

[0039] Please refer to the attached drawings. The outer wall of the limiting plate 502 is slidably connected to the inside of the outer box 1, and the outer wall of the support plate 503 is slidably connected to the inner wall of the outer box 1.

[0040] Specifically, the outer casing 1 restricts the movement of the limiting plate 502 to a linear motion without deviation, and also prevents the limiting plate 502 from falling off. At the same time, the support plate 503 slides on the inner wall of the outer casing 1, further restricting the direction of movement of the support plate 503.

[0041] Please see the appendix Figure 2 -Appendix Figure 4 The outer wall of the positioning block 510 is fixedly connected to the inner wall of the outer box 1, and the outer wall of the positioning bracket 507 is attached to the outer wall of the support plate 503.

[0042] Specifically, the positioning block 510 is fixed by the outer box 1, so that when the limiting roller 508 is subjected to the lateral force of the positioning rod 505, the position of the limiting roller 508 will not change. As a support point, the positioning rod 505 rotates. When the positioning bracket 507 is fully retracted, the support plate 503 can restrict the position of the positioning bracket 507, ensuring that the positioning rod 505 can still rotate when used next time and will not collide with the positioning block 510.

[0043] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 8 The limiting mechanism 9 includes a first fixing block 901, which is disposed on both sides of the outer wall of the outer box 1. A column 902 is fixedly connected to the upper surface of the first fixing block 901. A second fixing block 903 is slidably connected to the outer wall of the column 902. A limiting column 904 is fixedly connected to the upper surface of the column 902.

[0044] Specifically, by fixing the column 902 with the first fixing block 901, the direction of movement of the second fixing block 903 is fixed when the second fixing block 903 moves, ensuring that the second fixing block 903 will not deviate. Furthermore, the column 902 further restricts the movement, preventing the second fixing block 903 from rising too high and causing it to detach from the column 902.

[0045] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 8 The outer wall of the second fixing block 903 is fixedly connected to both sides of the outer wall of the outer box 1, and the outer wall of the limiting post 904 is attached to the outer wall of the second fixing block 903.

[0046] Specifically, the limiting mechanism 9 fixes the second fixing block 903, so that when the outer box 1 moves, it can move the second fixing block 903 synchronously, preventing the second fixing block 903 from failing. At the same time, when the second fixing block 903 moves to fit against the limiting post 904, it cannot move, preventing the second fixing block 903 from detaching from the post 902.

[0047] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 8 The lifting mechanism 11 includes a bidirectional threaded rod 1102. The outer wall of the bidirectional threaded rod 1102 is located inside the bottom shell 10. A crank 1101 is fixedly connected to the outer end of the bidirectional threaded rod 1102. Slider blocks 1103 are threadedly connected to both sides of the outer wall of the bidirectional threaded rod 1102. A vertical block 1104 is fixedly connected to the upper surface of the slider 1103. A connecting plate 1105 is rotatably connected inside the vertical block 1104. A vertical plate 1106 is rotatably connected to the outer wall of the connecting plate 1105. The upper surface of the vertical plate 1106 is fixedly connected to the lower surface of the outer box 1. A fixing block 1107 is rotatably connected to the middle of the outer wall of the bidirectional threaded rod 1102.

[0048] Specifically, when staff need to inspect the heater body 6 or move the lever 3, they first manually rotate the crank 1101 to rotate the bidirectional threaded rod 1102. Through the two reverse threads on the outer wall of the bidirectional threaded rod 1102, the sliders 1103 on both sides move towards each other or outward, thereby driving the upright block 1104 and the connecting plate 1105 to move. Since the upright plate 1106 is restricted by the outer box 1, the weight of the outer box 1 itself, combined with the use of the limiting mechanism 9, keeps the upright plates 1106 on both sides in a horizontal state. At this time, the connecting plate 1105 rotates around the central axis connecting the upright block 1104 and the connecting plate 1105, thereby lifting the upright plate 1106 and lifting the outer box 1 to move. At the same time, the limitation of the limiting mechanism 9 ensures that the outer box 1 can only move vertically, so that the position of the outer box 1 can be easily adjusted according to the different heights of the staff, making it convenient for the staff to carry out maintenance.

[0049] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 8 The outer wall of slider 1103 is slidably connected to the inner wall of bottom shell 10, and the lower surface of fixing block 3 1107 is fixedly connected to the inside of bottom shell 10.

[0050] Specifically, the bottom shell 10 restricts the movement of the slider 1103 driven by the bidirectional threaded rod 1102, ensuring that it can only move linearly and not rotate. It also aligns the direction of movement of the slider 1103. Meanwhile, the fixing block 3 1107 restricts the distance the sliders 1103 move on both sides, preventing them from disengaging from the threads on the outer wall of the bidirectional threaded rod 1102. In addition, in conjunction with the restrictions of the bottom shell 10 and the limiting mechanism 9, it prevents the slider 1103 from disengaging from the threads of the bidirectional threaded rod 1102 when the outer box 1 descends.

[0051] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 8 The outer wall of the fixing block 901 is fixedly connected to the outer wall of the bottom shell 10, and the upper surface of the bottom shell 10 is attached to the outer wall of the outer box 1.

[0052] Specifically, by fixing the first fixing block 901, the column 902 is supported and restricted, which further restricts the direction of movement of the second fixing block 903. At the same time, in conjunction with the function of the bottom shell 10, the slider 1103 will not disengage from the thread of the bidirectional threaded rod 1102 when the outer box 1 is lowered to the lowest position.

[0053] Please see the appendix Figure 9 A method for operating a modular explosion-proof heater includes the following steps:

[0054] S1: The heater body 6 is fixed inside the outer casing 1 by bolts 7. The heating element inside the heater body 6 converts electrical energy into heat energy based on the Joule effect and transfers it to the medium through direct contact.

[0055] S2: Pull out the sheath nail 4 and pull the lever 3 to move the baffle 2 and the heat dissipation mechanism 5, so that the positioning rod 505 in the heat dissipation mechanism 5 rotates around the connecting column 504 and pushes the positioning bracket 507 to rotate until the bonding plate 512 and the fins 513 are bonded to the outer wall of the heater body 6. Insert the sheath nail 4 into the outer box 1 to fix the position of the lever 3 and the baffle 2, and the outer box 1 is opened.

[0056] S3: Pull the lever 3 in the opposite direction to close the baffle 2 and insert the sheath nail 4 into the outer box 1 to fix it in place;

[0057] S4: The crank 1101 in the rotary lifting mechanism 11 drives the bidirectional threaded rod 1102 to rotate, causing the slider 1103 to move the upright block 1104, the connecting plate 1105 and the upright plate 1106. In conjunction with the limiting mechanism 9, the height of the outer box 1 is adjusted. After the operation is completed, the crank 1101 is rotated in the opposite direction to reset the outer box 1.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular explosion-proof heater, comprising an outer casing (1), characterized in that, The outer casing (1) is slidably connected to a baffle (2), and a pull rod (3) is fixedly connected to the outer wall of the baffle (2). A sheath nail (4) is slidably connected to the inner wall of the pull rod (3). A heat dissipation mechanism (5) is fixedly connected to the outer wall of the baffle (2) on the side away from the pull rod (3). A heater body (6) is attached to the outer wall of the heat dissipation mechanism (5). The outer wall of the heater body (6) is attached to the inner wall of the outer casing (1). A bolt (7) is provided inside the heater body (6). The outer wall of the bolt (7) is threadedly connected to the inside of the outer casing (1). A detector (8) is fixedly provided on the inner wall of the outer casing (1). Limiting mechanisms (9) are fixedly provided on both sides of the outer wall of the outer casing (1). A bottom shell (10) is fixedly provided on the outer wall of the limiting mechanism (9). A lifting mechanism (11) is provided inside the bottom shell (10). The outer wall of the lifting mechanism (11) is fixedly connected to the lower surface of the outer casing (1).

2. A modular explosion-proof heater according to claim 1, characterized in that, The heat dissipation mechanism (5) includes a connecting rod (501). The outer wall of the connecting rod (501) is fixedly connected to the outer wall of the baffle (2). A support plate (503) is fixedly connected to the outer wall of the connecting rod (501). A limit plate (502) is fixedly connected to the outer wall of the support plate (503). A connecting column (504) is rotatably connected inside the limit plate (502). A positioning rod (505) is rotatably connected to the outer wall of the connecting column (504). A connecting column (506) is rotatably connected to the inner wall of the positioning rod (505). The outer wall of the connecting column (506) is fixedly connected to... A positioning bracket (507) is connected to the outer wall of the connecting column 2 (506), a limiting roller (508) is provided, a support rod (509) is rotatably connected inside the limiting roller (508), a positioning block (510) is fixedly connected to the outer wall of the support rod (509), a connecting block (511) is fixedly connected to the outer wall of the positioning bracket (507), a bonding plate (512) is fixedly connected to the outer wall of the connecting block (511), fins (513) are evenly arranged on the outer wall of the bonding plate (512), and the outer wall of the bonding plate (512) is bonded to the outer wall of the heater body (6).

3. A modular explosion-proof heater according to claim 2, characterized in that, The outer wall of the limiting plate (502) is slidably connected to the inside of the outer box (1), and the outer wall of the support plate (503) is slidably connected to the inner wall of the outer box (1).

4. A modular explosion-proof heater according to claim 2, characterized in that, The outer wall of the positioning block (510) is fixedly connected to the inner wall of the outer box (1), and the outer wall of the positioning bracket (507) is attached to the outer wall of the support plate (503).

5. A modular explosion-proof heater according to claim 1, characterized in that, The limiting mechanism (9) includes a first fixing block (901), which is disposed on both sides of the outer wall of the outer box (1). A column (902) is fixedly connected to the upper surface of the first fixing block (901), and a second fixing block (903) is slidably connected to the outer wall of the column (902). A limiting column (904) is fixedly connected to the upper surface of the column (902).

6. A modular explosion-proof heater according to claim 5, characterized in that, The outer wall of the second fixing block (903) is fixedly connected to both sides of the outer wall of the outer box (1), and the outer wall of the limiting post (904) is attached to the outer wall of the second fixing block (903).

7. A modular explosion-proof heater according to claim 1, characterized in that, The lifting mechanism (11) includes a bidirectional threaded rod (1102), the outer wall of which is located inside the bottom shell (10). A crank (1101) is fixedly connected to the outer end of the bidirectional threaded rod (1102). Slider blocks (1103) are threadedly connected to both sides of the outer wall of the bidirectional threaded rod (1102). A vertical block (1104) is fixedly connected to the upper surface of the slider (1103). A connecting plate (1105) is rotatably connected inside the vertical block (1104). A vertical plate (1106) is rotatably connected to the outer wall of the connecting plate (1105). The upper surface of the vertical plate (1106) is fixedly connected to the lower surface of the outer box (1). A fixing block three (1107) is rotatably connected to the middle of the outer wall of the bidirectional threaded rod (1102).

8. A modular explosion-proof heater according to claim 7, characterized in that, The outer wall of the slider (1103) is slidably connected to the inner wall of the bottom shell (10), and the lower surface of the fixing block three (1107) is fixedly connected to the inside of the bottom shell (10).

9. A modular explosion-proof heater according to claim 5, characterized in that, The outer wall of the fixing block (901) is fixedly connected to the outer wall of the bottom shell (10), and the upper surface of the bottom shell (10) is attached to the outer wall of the outer box (1).

10. A method for operating a modular explosion-proof heater, characterized in that, A modular explosion-proof heater according to claims 1-9 includes the following steps: S1: The heater body (6) is fixed inside the outer casing (1) by bolts (7). The heating element inside the heater body (6) converts electrical energy into heat energy based on the Joule effect and transfers it to the medium through direct contact. S2: Pull out the sheath nail (4) and pull the lever (3) to move the baffle (2) and the heat dissipation mechanism (5), so that the positioning rod (505) in the heat dissipation mechanism (5) rotates around the connecting column (504) and pushes the positioning bracket (507) to rotate until the bonding plate (512) and fins (513) are bonded to the outer wall of the heater body (6). Insert the sheath nail (4) into the outer box (1) to fix the position of the lever (3) and the baffle (2), and the outer box (1) is opened. S3: Pull the lever (3) in the opposite direction to close the baffle (2) and insert the sheath nail (4) into the outer box (1) to fix the position; S4: The crank (1101) in the rotary lifting mechanism (11) drives the bidirectional threaded rod (1102) to rotate, causing the slider (1103) to drive the upright block (1104), connecting plate (1105) and upright plate (1106) to move, and cooperate with the limiting mechanism (9) to adjust the height of the outer box (1). After the operation is completed, the crank (1101) is rotated in the opposite direction to reset the outer box (1).

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