Explosion-proof electric heater pry

By designing explosion-proof electric heater pry, including suspended heating components and explosion-proof power supply components, combined with the use of detection components, the problems of inconvenient disassembly and inconvenient regulation of existing electric heater equipment are solved, convenient maintenance and maintenance are achieved, and multiple protection functions are provided.

CN222578492UActive Publication Date: 2025-03-07CHINA PETROLEUM ENG & CONSTR +1
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Patent Information

Application Number
CN202420659257.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2025-03-07
Estimated Expiration
2034-04-01

AI Technical Summary

Technical Problem

The equipment inside the existing electric heater skid is inconvenient to disassemble, lacks maintenance and maintenance space, and is inconvenient to regulate heating temperature and power, and lacks leakage protection and anti-dry burn protection functions.

Method used

An explosion-proof electric heater pry is designed, including a base, heating assembly, explosion-proof power supply assembly and detection assembly. The heating assembly includes a first heating conduit and a first water supply conduit arranged in an air. The explosion-proof power supply assembly is suspended on the base and is connected to the first heating conduit. The detection assembly is used to detect the temperature and pressure in the heating conduit and adjust the output power of the explosion-proof power supply assembly.

Benefits of technology

It realizes convenient regulation of heating temperature and output power, provides sufficient space for inspection and maintenance, can be repaired in a timely manner when a fault occurs, and has functions such as leakage protection, overload protection, overheating protection and anti-dry burn protection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222578492U_ABST
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Abstract

The utility model provides an explosion-proof electric heater pry which comprises a base, a heating assembly, an explosion-proof power supply assembly and a detection assembly used for detecting the temperature and pressure in a first heating guide pipe, the heating assembly comprises the first heating guide pipe and a first water supply guide pipe, and the first heating guide pipe is arranged on the base in a suspended mode. One part of the first water supply guide pipe is located in the first heating guide pipe and extends out of the tail end of the first heating guide pipe, the anti-explosion power supply assembly is suspended on the base and connected with the first heating guide pipe, and the detection assembly is arranged in the outlet end of the first heating guide pipe so as to adjust the output power of the anti-explosion power supply assembly according to the detected temperature. The heating temperature of the first heating guide pipe is detected through the detection assembly, so that the output power can be conveniently adjusted at any time through the anti-explosion power supply assembly, and the heating temperature and the output power are more convenient to adjust and control. The explosion-proof power supply assembly and the heating assembly are suspended on the base, so that enough space is reserved for implementation.
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Description

Technical Field

[0001] The utility model belongs to the field of heating equipment, in particular to an explosion-proof electric heater pry. Background Art

[0002] In the transportation of oil, an electric heater is required. The electric heater has a heating component and a circulating filter component. The collected oil is stored in the oil storage tank. The oil in the oil storage tank passes through the circulating filter component and enters the heating component. After the heating component is powered on, heat is emitted to heat the oil. The heated oil is transported to the heat transfer oil pipeline of the heating equipment through the oil outlet of the heating component, and the heating medium is required for heating, thereby completing the heating of the oil.

[0003] However, all the equipment in the current electric heater skid is difficult to disassemble, and there is not enough space for inspection and maintenance. When a failure occurs, it cannot be repaired in time. In addition, the temperature and power output of the heater are difficult to regulate, and it does not have leakage protection and anti-dry burning protection functions. Utility Model Content

[0004] In view of the above problems, the utility model proposes an explosion-proof electric heater pry, comprising:

[0005] Pedestal;

[0006] The heating assembly comprises a first heating conduit and a first water supply conduit, wherein the first heating conduit is suspended on the base, and a portion of the first water supply conduit is located in the first heating conduit and extends from a terminal end of the first heating conduit;

[0007] An explosion-proof power supply component, suspended on the base and connected to the first heating conduit;

[0008] A detection component for detecting the temperature and pressure in the first heating conduit is arranged at the end of the first heating conduit to adjust the output power of the explosion-proof power supply component according to the detected temperature.

[0009] Optionally, the heating component also includes an oil outlet pipe and an oil drain pipe, the oil outlet pipe is arranged above the end of the first heating tube and is connected to the first heating tube to discharge fuel, the oil drain pipe is arranged below the end of the first heating tube and is connected to the first heating tube to discharge impurities, and the detection component for detecting temperature is provided in the oil outlet pipe.

[0010] Optionally, an outlet valve is provided on the oil outlet pipe to control the oil outlet, and a drain valve is provided at the end of the oil drain pipe to discharge the remaining oil or impurities in the first heating conduit.

[0011] Optionally, the detection component includes a bimetallic thermometer, a temperature transmitter and a pressure transmitter, the bimetallic thermometer is arranged at the end of the first heating tube, the temperature transmitter and the pressure transmitter are both arranged at the oil outlet end of the first heating tube, and the temperature transmitter is located after the pressure transmitter.

[0012] Optionally, it also includes an instrument junction box, the detection component is connected to the instrument junction box, and the instrument junction box is connected to an external control room.

[0013] Optionally, an inlet end is provided at the head of the first heating conduit, and an outlet end is provided at the tail of the first heating conduit, and the first water supply conduit extends into the first heating conduit through the inlet end and extends out from the outlet end.

[0014] Optionally, the first water supply conduit includes a water pipe head and a water pipe body, the water pipe body is located in the first heating conduit and extends from the outlet end, the water pipe head extends from the inlet end into the first heating conduit and is connected to the water pipe body, an inlet valve is provided at the water pipe head to control water inlet, and a straight-through valve is provided at the end of the water pipe body to control water discharge.

[0015] Optionally, a first support frame and a second support frame are arranged at an interval on the base, the heating component is arranged on the first support frame, and the explosion-proof power supply component is partially arranged on the second support frame.

[0016] Optionally, the second support frame includes an explosion-proof flexible tube, a galvanized steel pipe, a galvanized channel steel part, a bracket and a grounding wire. The explosion-proof power supply component is partially arranged on the top surface of the bracket, and the galvanized channel steel part is arranged between the brackets. One end of the explosion-proof flexible tube passes through the top surface of the bracket to contact the explosion-proof power supply component, and the other end is connected to the galvanized steel pipe. The galvanized steel pipe passes through the galvanized channel steel part to be connected to the grounding wire, and the grounding wire is arranged on one side of the bracket.

[0017] Optionally, the explosion-proof power supply assembly includes the explosion-proof power distribution control cabinet and the explosion-proof junction box connected to each other, and the explosion-proof junction box is connected to the first heating conduit.

[0018] The explosion-proof electric heater skid of the utility model detects the heating temperature of the first heating conduit through the detection component, so that the output power can be adjusted at any time through the explosion-proof power supply component, making the regulation of heating temperature and output power more convenient. Since the explosion-proof power supply component and the heating component are suspended on the base, sufficient space is left to realize the inspection and maintenance of the explosion-proof power supply component and the heating component, and timely maintenance can be carried out when a fault occurs.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of an explosion-proof electric heater pry in an embodiment of the utility model is shown;

[0022] Figure 2 A top view of an explosion-proof electric heater pry in an embodiment of the utility model is shown;

[0023] Figure 3 A schematic diagram of a bracket of an explosion-proof electric heater pry in an embodiment of the utility model is shown.

[0024] In the figure, 1-base, 2-heating component, 21-first heating conduit, 22-first water supply conduit, 3-explosion-proof power supply component, 2111-oil outlet pipe, 2112-oil drain pipe, 225-outlet valve, 226-drain valve, 41-bimetallic thermometer, 43-temperature transmitter, 42-pressure transmitter, 5-instrument junction box, 211-inlet end, 212-outlet end, 221-water pipe head, 222-water pipe body, 223-inlet valve, 224-straight-through valve, 11-first supporting frame, 12-second supporting frame, 121-explosion-proof flexible pipe, 122-galvanized steel pipe, 123-galvanized channel steel, 125-bracket, 124-grounding wire, 31-explosion-proof power distribution control cabinet, 32-explosion-proof junction box, 6-outlet flange, 126-reinforcement. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 and Figure 2 As shown, the utility model provides an explosion-proof electric heater skid, comprising: a base 1, a heating component 2, an explosion-proof power supply component 3 and a detection component, the heating component 2 comprises a first heating conduit 21 and a first water supply conduit 22, the first heating conduit 21 is suspended on the base 1, a part of the first water supply conduit 22 is located in the first heating conduit 21 and extends from the end of the first heating conduit 21, the explosion-proof power supply component 3 is suspended on the base 1 and connected to the first heating conduit 21, and the detection component for detecting the temperature and pressure in the first heating conduit 21 is arranged in the end of the first heating conduit 21 to adjust the output power of the explosion-proof power supply component 3 according to the detected temperature. The detection component detects the heating temperature of the first heating conduit 21, so that the output power can be adjusted at any time by the explosion-proof power supply component 3, making the heating temperature and output power more convenient to control. Since the explosion-proof power supply component 3 and the heating component 2 are suspended on the base 1, sufficient space is left to realize the inspection and maintenance of the explosion-proof power supply component 3 and the heating component 2, and when a fault occurs, it can be repaired in time. It should be noted that the explosion-proof power supply component 3 has short circuit protection, overload protection, overheat protection and leakage protection functions, can effectively control the temperature, and can flexibly and freely set the working temperature by adjusting the output power. Specifically, during operation, when the temperature in the first heating conduit 21 is too low, the output power of the explosion-proof power supply component 3 is increased, so that the temperature in the first heating conduit 21 rises to the target temperature, and the output power is stopped from being increased. If the temperature in the first heating conduit 21 is too high, the output power of the explosion-proof power supply component 3 is reduced, so that the temperature in the first heating conduit 21 drops to the target temperature, and the output power is stopped from being reduced, so that the temperature can be effectively controlled. The water temperature in the first water supply conduit 22 is heated by the temperature in the first heating conduit 21, so that the first water supply conduit 22 always maintains a certain temperature, and the fuel in the first heating conduit 21 always maintains a certain temperature.

[0027] In one embodiment, the heating component 2 further includes an oil outlet pipe 2111 and an oil drain pipe 2112. The oil outlet pipe 2111 is disposed above the end of the first heating conduit 21 and communicates with the first heating conduit 21 to discharge the fuel. The oil drain pipe 2112 is disposed below the end of the first heating conduit 21 and communicates with the first heating conduit 21 to discharge impurities. A detection component for detecting temperature is disposed in the oil outlet pipe 2111. The fuel in the first heating conduit 21 can be discharged through the oil outlet pipe 2111, and the detection component in the oil outlet pipe 2111 can detect the temperature in the first heating conduit 21. By observing the detected temperature, the output power of the explosion-proof power supply component 3 can be adjusted at any time. The residual fuel in the first heating conduit 21 can be discharged through the oil drain pipe 2112, or the impurities in the first heating conduit 21 can be discharged, so that the first heating conduit 21 is cleaner.

[0028] In one embodiment, an outlet valve 225 is provided on the oil outlet pipe 2111 to control the oil outlet, and a drain valve 226 is provided at the end of the oil drain pipe 2112 to discharge the remaining oil or impurities in the first heating conduit 21. The fuel in the first heating conduit 21 can be discharged through the outlet valve 225, and the outlet valve 225 can control the oil outlet and stop the oil outlet, and the outlet valve 225 can also be connected to the oil outlet pipe 2111 to discharge the oil to the target location, and the remaining oil or impurities can be discharged by controlling the switch of the drain valve 226. After the remaining oil is discharged, it is convenient to inspect the first heating conduit 21, and the drain valve 226 can also be connected to the external water pipe to flow water into the first heating conduit 21 through the drain valve 226, so as to achieve cleaning of the first heating conduit 21.

[0029] In one embodiment, the detection component includes a bimetallic thermometer 41, a temperature transmitter 43 and a pressure transmitter 42. The bimetallic thermometer 41 is arranged at the end of the first heating conduit 21. The temperature transmitter 43 and the pressure transmitter 42 are both arranged at the oil outlet of the first heating conduit 21, and the temperature transmitter 43 is located behind the pressure transmitter 42. It is more convenient and accurate to control the temperature by using the temperature transmitter 43 and the bimetallic thermometer 41 in conjunction with the explosion-proof power distribution control cabinet 31, and the temperature can be effectively controlled, and the working temperature can be set flexibly and freely. The pressure transmitter 42 can detect the pressure when the oil is discharged, that is, detect the pressure in the first heating conduit 21, so as to confirm whether the pressure of the discharged fuel is sufficient to prevent the fuel from not being discharged due to insufficient pressure in the first heating conduit 21.

[0030] Optionally, the heating component 2 also includes a second heating conduit and a second water supply conduit. The relationship between the second heating conduit and the second water supply conduit is the same as the relationship between the first heating conduit 21 and the first water supply conduit 22, and will not be described in detail here. Of course, a temperature detection component is provided on the second heating conduit, and the oil outlet of the second heating conduit is connected to the oil outlet of the first heating conduit 21 through a pipeline and finally converges on a main pipeline, and the oil is output through the main pipeline. The heating component 2 also includes multiple heat conduits and multiple water supply conduits. Since the relationship between the multiple heat conduits and the multiple water supply conduits is the same as the above-mentioned second heating conduit and the second water supply conduit, it will not be described here. In addition, the temperature transmitter 43 and the pressure transmitter 42 are both arranged in the main pipeline, and there is an outlet flange 6 at the end of the main pipeline, and other components can be connected through the outlet flange 6.

[0031] In one embodiment, an instrument junction box 5 is further included, the detection component is connected to the instrument junction box 5, and the instrument junction box 5 is connected to an external control room. Specifically, the instrument junction box 5 is connected to the temperature transmitter 43 and the pressure transmitter 42 respectively, and the instrument junction box 5 can receive data transmitted by the temperature transmitter 43 and the pressure transmitter 42. At the same time, the instrument junction box 5 can transmit the received data to the external control room, and adjust the pressure and temperature in the first heating conduit 21 by analyzing the received data.

[0032] In one embodiment, an inlet end 211 is provided at the head of the first heating conduit 21, and an outlet end 212 is provided at the tail of the first heating conduit 21. The first water supply conduit 22 extends into the first heating conduit 21 through the inlet end 211 and extends out from the outlet end 212. The inlet end 211 enables the first water supply conduit 22 to pass water in the first heating conduit 21 and heat the first water supply conduit 22, and the outlet end 212 enables the first water supply conduit 22 to extend out of the first water supply conduit 22, so that the first water supply conduit 22 can be discharged at any time.

[0033] In one embodiment, the first water supply conduit 22 includes a water pipe head 221 and a water pipe body 222. The water pipe body 222 is located in the first heating conduit 21 and extends from the outlet end 212. The water pipe head 221 extends from the inlet end 211 into the first heating conduit 21 and communicates with the water pipe body 222. An inlet valve 223 is provided at the water pipe head 221 to control water inlet, and a through valve 224 is provided at the end of the water pipe body 222 to control water discharge. Water inlet is achieved through the water pipe head 221, and when the water volume reaches a certain amount, the inlet valve 223 is controlled to close the water inlet, thereby stopping the water supply to the first water supply conduit 22. When the first heating conduit 21 no longer needs to be heated or stops working, the water in the first water supply conduit 22 needs to be discharged. At this time, the water in the first water supply conduit 22 is discharged by controlling the straight-through valve 224 on the water pipe body 222 to open the switch, and the first water supply conduit 22 can also be cleaned through the inlet valve 223 or the straight-through valve 224. Of course, both the inlet valve 223 and the straight-through valve 224 need to be opened.

[0034] In one embodiment, a first support frame 11 and a second support frame 12 are provided on the base 1, the heating component 2 is provided on the first support frame 11, and the explosion-proof power supply component 3 is partially provided on the second support frame 12. Through the first support frame 11 and the second support frame 12, the heating component 2 and the explosion-proof power supply component 3 are partially suspended, so that the heating component 2 and the explosion-proof power supply component 3 have sufficient operating space during maintenance, and are also convenient for maintenance. Optionally, a lifting lug is provided on the first support frame 11, and the entire device is conveniently moved through the lifting lug.

[0035] like Figure 3 As shown, in one embodiment, the second support frame 12 includes an explosion-proof flexible tube 121, a galvanized steel tube 122, a galvanized steel channel 123, a bracket 125 and a grounding wire 124. The explosion-proof power supply component 3 is partially arranged on the top surface of the bracket 125, and the galvanized steel channel 123 is arranged between the brackets 125. One end of the explosion-proof flexible tube 121 passes through the top surface of the bracket 125 to contact the explosion-proof power supply component 3, and the other end is connected to the galvanized steel tube 122. The galvanized steel tube 122 passes through the galvanized steel channel 123 and is connected to the grounding wire 124. The grounding wire 124 is arranged on one side of the bracket 125. The explosion-proof flexible tube, the galvanized steel tube 122, and the galvanized steel channel 123 can increase the overall structural strength of the bracket 125, and the grounding wire 124 can make the entire electric heater safer to use and improve the explosion-proof performance of the heater. Optionally, the bracket 125 includes two pillars and two inverted V-structured reinforcing members 126, the two pillars are spaced apart on the base 1, and the two reinforcing members 126 are respectively arranged on each pillar in a one-to-one correspondence, that is, the top of any reinforcing member 126 is fixed to any reinforcing member 126, so that the whole structure is more stable, the structural strength is increased, and the stability of the second support frame 12 is improved. In addition, the base 1 is a skid-mounted base 1.

[0036] In one embodiment, the explosion-proof power supply assembly 3 includes an explosion-proof power distribution control cabinet 31 and an explosion-proof junction box 32 connected to each other, and the explosion-proof junction box 32 is connected to the first heating conduit 21. It should be noted that the explosion-proof junction box 32 is connected to the grounding wire 124, and the explosion-proof junction box 32 can realize simultaneous connection of multiple groups of first heating conduits 21, and can also ensure the safety of the connection, while the explosion-proof power distribution control cabinet 31 can adjust the power, can effectively control the temperature, and has short circuit protection, overload protection, overheating protection and leakage protection inside, thereby improving safety.

[0037] In summary, in specific applications, the electric heater pry set up in this structure is connected to the grounding wire 124 through the explosion-proof junction box 32, and the grounding wire 124 is connected to the ground, which effectively ensures that all heating components 2 are safer to use and improves the explosion-proof performance of the heater. All of the above-mentioned components, including the above-mentioned temperature or pressure measuring instruments, explosion-proof distribution control cabinet 31 and explosion-proof junction box 32, various valves and other components have anti-corrosion functions. All components are installed on the base 1, and the explosion-proof junction box 32 and the heating component 2 are suspended on the base 1. This arrangement is convenient for transportation and on-site inspection and maintenance, so that each component can be easily disassembled, thereby facilitating inspection and maintenance, thereby ensuring the service life of the entire device, which can improve the service life of the entire device. The electric heating component 2 is safe and reliable, and the temperature is controlled by the temperature transmitter 43 and bimetallic thermometer 41 arranged on the electric heating component 2 in cooperation with the explosion-proof power distribution control cabinet 31, so that the output power can be adjusted at any time through temperature feedback, and the temperature of the electric heating component 2 can be easily adjusted. In addition, the temperature transmitter 43 and the bimetallic thermometer 41 have the characteristics of sensitive temperature control response and convenient installation, and can meet the requirements of different pipe diameters, different ambient temperatures, and reliable and mature electric heating components 2 with humidity. The explosion-proof power distribution control cabinet 31 has short circuit protection, overload protection, overheating protection and leakage protection inside, which can effectively control the temperature and can flexibly and freely set the working temperature, thereby ensuring the practicality of the entire electric heater.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An explosion-proof electric heater skid, characterized in that: include: Base (1); A heating assembly (2), comprising a first heating conduit (21) and a first water supply conduit (22), wherein the first heating conduit (21) is suspended on the base (1), and a portion of the first water supply conduit (22) is located inside the first heating conduit (21) and extends from a distal end of the first heating conduit (21); An explosion-proof power supply component (3) is suspended on the base (1) and connected to the first heating conduit (21); A detection component (4) for detecting the temperature and pressure in the first heating conduit (21) is arranged at the end of the first heating conduit (21) to adjust the output power of the explosion-proof power supply component (3) according to the detected temperature.

2. The explosion-proof electric heater skid according to claim 1, characterized in that: The heating component (2) further comprises an oil outlet pipe (2111) and an oil drain pipe (2112); the oil outlet pipe (2111) is arranged above the end of the first heating conduit (21) and is connected to the first heating conduit (21) to discharge the fuel; the oil drain pipe (2112) is arranged below the end of the first heating conduit (21) and is connected to the first heating conduit (21) to discharge impurities; and the detection component (4) for detecting the temperature is arranged in the oil outlet pipe (2111).

3. The explosion-proof electric heater skid according to claim 2, characterized in that: An outlet valve (225) is provided on the oil outlet pipe (2111) to control the oil outlet, and a drain valve (226) is provided at the end of the oil drain pipe (2112) to discharge the remaining oil or impurities in the first heating conduit (21).

4. The explosion-proof electric heater skid according to claim 1, characterized in that: The detection component (4) comprises a bimetallic thermometer (41), a temperature transmitter (43) and a pressure transmitter (42); the bimetallic thermometer (41) is arranged at the end of the first heating conduit (21); the temperature transmitter (43) and the pressure transmitter (42) are both arranged at the oil outlet end of the first heating conduit (21); and the temperature transmitter (43) is located behind the pressure transmitter (42).

5. The explosion-proof electric heater skid according to claim 1, characterized in that: It also comprises an instrument junction box (5), the detection component (4) is connected to the instrument junction box (5), and the instrument junction box (5) is connected to an external control room.

6. The explosion-proof electric heater skid according to claim 1, characterized in that: An inlet end (211) is provided at the head of the first heating conduit (21), and an outlet end (212) is provided at the tail of the first heating conduit (21); the first water supply conduit (22) extends into the first heating conduit (21) through the inlet end (211) and extends out from the outlet end (212).

7. The explosion-proof electric heater skid according to claim 6, characterized in that: The first water supply conduit (22) comprises a water pipe head (221) and a water pipe body (222); the water pipe body (222) is located in the first heating conduit (21) and extends from the outlet end (212); the water pipe head (221) extends from the inlet end (211) into the first heating conduit (21) and is in communication with the water pipe body (222); the water pipe head (221) is provided with the inlet valve (223) to control water inlet, and the through valve (224) is provided at the end of the water pipe body (222) to control water discharge.

8. The explosion-proof electric heater skid according to claim 1, characterized in that: A first support frame (11) and a second support frame (12) are arranged at an interval on the base (1); the heating component (2) is arranged on the first support frame (11); and the explosion-proof power supply component (3) is partially arranged on the second support frame (12).

9. The explosion-proof electric heater skid according to claim 7, characterized in that: The second support frame (12) comprises an explosion-proof flexible tube (121), a galvanized steel tube (122), a galvanized steel channel (123), a bracket (125) and a grounding wire (124); the explosion-proof power supply component (3) is partially arranged on the top surface of the bracket (125); the galvanized steel channel (123) is arranged between the brackets (125); one end of the explosion-proof flexible tube (121) passes through the top surface of the bracket (125) to contact the explosion-proof power supply component (3); the other end is connected to the galvanized steel tube (122); the galvanized steel tube (122) passes through the galvanized steel channel (123) to be connected to the grounding wire (124); the grounding wire (124) is arranged on one side of the bracket (125).

10. The explosion-proof electric heater skid according to claim 1, characterized in that: The explosion-proof power supply assembly (3) comprises an explosion-proof power distribution control cabinet (31) and an explosion-proof junction box (32) which are connected to each other, and the explosion-proof junction box (32) is connected to the first heating conduit (21).