An explosion-proof heater

Abstract

The utility model discloses an explosion -proof heater of explosion -proof type, including heater outer casing, the outer surface of heater outer casing is equipped with the explosion -proof frame, the inside of heater outer casing is provided with the heating chamber, the inside installation of heating chamber is equipped with electric heating pipe, the both sides surface of heater outer casing all are equipped with first explosion -proof board, one side of first explosion -proof board is equipped with second explosion -proof board, the inside embedding of explosion -proof chamber is equipped with explosion -proof sealing piece. The utility model discloses setting up the explosion -proof cavity in the heater, and the special explosion -proof board connection is used between the explosion -proof cavity, ensures even if the explosion of heating chamber, flame and pressure also can not spread to the external environment, and simultaneously adopts the elastic material to make the explosion -proof sealing piece, including silicon rubber or fluorine rubber, forms the close seal between the explosion -proof board, when the heater is subjected to the vibration or temperature change, and the elastic sealing piece can automatically compensate the gap, keeps good sealing performance, prevents the explosive gas and enters.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof heater technology, specifically to an explosion-proof heater. Background Technology

[0002] An electric heater is an electrical appliance that converts electrical energy into heat energy. It is used to heat and keep warm flowing or stationary liquid, gas, and solid substances. It has advantages such as small size, high heating power, fully automated control of the heating system, long service life, and high reliability.

[0003] Chinese patent document CN220043706U discloses an explosion-proof electric heater. The explosion-proof electric heater includes a heating rod and a junction box; the heating rod includes a heating section and a non-heating section connected together; the junction box contains terminals and wires, one end of the terminals is connected to the non-heating section of the heating rod, and the other end is connected to the wires. By adding a non-heating section to the end of the heating section of the heating rod, the terminals can be moved away from the heating section, placing them in a relatively low-temperature area. This helps reduce the aging rate of the terminals and wires, improves the reliability of the explosion-proof electric heater, reduces the risk of downtime for maintenance, and minimizes direct and indirect economic losses caused by downtime for maintenance.

[0004] The existing technologies mentioned above do not have good sealing and explosion-proof protection effects and cannot prevent explosive gases from entering the heating chamber and causing explosion damage to the heater. Therefore, it is necessary to develop a new type of explosion-proof heater. Utility Model Content

[0005] The purpose of this utility model is to provide an explosion-proof heater to solve the problem mentioned in the background art that the prior art does not have a good sealing and explosion-proof protection effect and cannot prevent explosive gases from entering the heating chamber and causing explosion damage to the heater.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof heater, comprising a heater housing, an explosion-proof frame installed on the outer surface of the heater housing, a heating chamber provided inside the heater housing, an electric heating tube installed inside the heating chamber, first explosion-proof plates installed on both sides of the heater housing, a second explosion-proof plate installed on one side of the first explosion-proof plates, an explosion-proof cavity provided between the first and second explosion-proof plates, and an explosion-proof seal embedded inside the explosion-proof cavity.

[0007] Preferably, an expansion gap is provided between the explosion-proof seal and the explosion-proof cavity, and the explosion-proof seal is made of silicone rubber or fluororubber.

[0008] Preferably, the first explosion-proof plate and the explosion-proof frame are fixedly connected by a bolt assembly.

[0009] Preferably, the explosion-proof frame is internally equipped with reinforcing support bars, which are used to reinforce the connection of the first explosion-proof plate.

[0010] Preferably, a support rod is installed inside the heating chamber, and the surface of the support rod is connected to the electric heating tube by a limiting clamp.

[0011] Preferably, a gas control box is installed on the side surface of the heater housing.

[0012] Preferably, the surface of the gas control box is provided with an air inlet pipe and an air outlet pipe, and both the air inlet pipe and the air outlet pipe are equipped with a switch valve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features an explosion-proof cavity inside the heater, connected by special explosion-proof plates. This ensures that even if an explosion occurs within the heating cavity, the flame and pressure will not propagate to the external environment. Simultaneously, explosion-proof seals made of elastic materials, including silicone rubber or fluororubber, form a tight seal between the explosion-proof plates. When the heater is subjected to vibration or temperature changes, the elastic seals automatically compensate for the gaps, maintaining good sealing performance and preventing explosive gases from entering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded decomposition structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal installation structure of this utility model.

[0018] In the figure: 1. Heater housing; 2. Explosion-proof frame; 3. Gas control box; 4. Inlet pipe; 5. Exhaust pipe; 6. Explosion-proof seal; 7. Explosion-proof chamber; 8. Second explosion-proof plate; 9. First explosion-proof plate; 10. Electric heating tube; 11. Support rod; 12. Limiting clamp; 13. Reinforcing support bar; 14. Heating chamber. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figure 1-3 An embodiment of this utility model provides: an explosion-proof heater, including a heater housing 1, an explosion-proof frame 2 installed on the outer surface of the heater housing 1, a heating chamber 14 provided inside the heater housing 1, an electric heating tube 10 installed inside the heating chamber 14, a first explosion-proof plate 9 installed on both sides of the heater housing 1, a second explosion-proof plate 8 installed on one side of the first explosion-proof plate 9, an explosion-proof cavity 7 provided between the first explosion-proof plate 9 and the second explosion-proof plate 8, and an explosion-proof sealing element 6 embedded inside the explosion-proof cavity 7.

[0021] Furthermore, an expansion gap is provided between the explosion-proof seal 6 and the explosion-proof cavity 7. The explosion-proof seal 6 is made of silicone rubber or fluororubber and is made of elastic material, including silicone rubber or fluororubber, to form a tight seal between the first explosion-proof plate 9 and the second explosion-proof plate 8. When the heater is subjected to vibration or temperature change, the elastic explosion-proof seal 6 can automatically compensate for the gap, maintain good sealing performance, and prevent explosive gases from entering.

[0022] Furthermore, the first explosion-proof plate 9 is fixedly connected to the explosion-proof frame 2 by bolt assembly. The explosion-proof frame 2 is equipped with a reinforcing support strip 13, which is used to reinforce the connection of the first explosion-proof plate 9, thereby improving the tightness, firmness and safety stability of the installation of the first explosion-proof plate 9.

[0023] Furthermore, a support rod 11 is installed inside the heating chamber 14. The surface of the support rod 11 is connected to the electric heating tube 10 through a limiting clamp 12, which is used to limit and fix the electric heating tube 10 to prevent it from loosening or shifting.

[0024] Furthermore, a gas control box 3 is installed on the side surface of the heater housing 1. An inlet pipe 4 and an exhaust pipe 5 are respectively opened on the surface of the gas control box 3. Switch valves are installed inside the inlet pipe 4 and the exhaust pipe 5, which can be used to control the gas entering and exiting the heater housing 1, and have the advantage of convenient switch control.

[0025] Working principle: During use, an explosion-proof frame 2 is installed on the outer surface of the heater housing 1. A heating chamber 14 is provided inside the heater housing 1, and an electric heating tube 10 is installed inside the heating chamber 14. The electric heating tube 10 is turned on to heat the interior of the heating chamber 14. A gas control box 3 is installed on the side surface of the heater housing 1. An inlet pipe 4 and an exhaust pipe 5 are respectively opened on the surface of the gas control box 3. Both the inlet pipe 4 and the exhaust pipe 5 are equipped with valves to control the gas flow into and out of the heater housing 1. First explosion-proof plates 9 are installed on both sides of the heater housing 1, and a second explosion-proof plate 8 is installed on one side of the first explosion-proof plate 9. The first explosion-proof plate 9 and the second explosion-proof plate 8... An explosion-proof chamber 7 is provided inside the heater, and an explosion-proof seal 6 is embedded inside the explosion-proof chamber 7. By setting the explosion-proof chamber 7 inside the heater and connecting the explosion-proof chambers 7 with special explosion-proof plates, it is ensured that even if an explosion occurs inside the heating chamber 14, the flame and pressure will not spread to the external environment. An expansion gap is provided between the explosion-proof seal 6 and the explosion-proof chamber 7. The explosion-proof seal 6 is made of silicone rubber or fluororubber and is made of elastic material, including silicone rubber or fluororubber. A tight seal is formed between the first explosion-proof plate 9 and the second explosion-proof plate 8. When the heater is subjected to vibration or temperature change, the elastic explosion-proof seal 6 can automatically compensate for the gap, maintain good sealing performance, and prevent explosive gas from entering.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0028] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof heater, comprising a heater housing (1), characterized in that, An explosion-proof frame (2) is installed on the outer surface of the heater housing (1). A heating chamber (14) is provided inside the heater housing (1). An electric heating tube (10) is installed inside the heating chamber (14). A first explosion-proof plate (9) is installed on both sides of the heater housing (1). A second explosion-proof plate (8) is installed on one side of the first explosion-proof plate (9). An explosion-proof cavity (7) is provided between the first explosion-proof plate (9) and the second explosion-proof plate (8). An explosion-proof seal (6) is embedded inside the explosion-proof cavity (7).

2. The explosion-proof heater according to claim 1, characterized in that: An expansion gap is provided between the explosion-proof seal (6) and the explosion-proof cavity (7), and the explosion-proof seal (6) is made of silicone rubber or fluororubber.

3. The explosion-proof heater according to claim 1, characterized in that: The first explosion-proof plate (9) is fixedly connected to the explosion-proof frame (2) by bolt assembly.

4. The explosion-proof heater according to claim 1, characterized in that: The explosion-proof frame (2) is equipped with a reinforcing support strip (13), which is used to reinforce the connection of the first explosion-proof plate (9).

5. The explosion-proof heater according to claim 1, characterized in that: The heating chamber (14) is equipped with a support rod (11), and the surface of the support rod (11) is connected to the electric heating tube (10) by a limiting clamp (12).

6. The explosion-proof heater according to claim 1, characterized in that: A gas control box (3) is installed on the side surface of the heater housing (1).

7. The explosion-proof heater according to claim 6, characterized in that: The surface of the gas control box (3) is provided with an air inlet pipe (4) and an exhaust pipe (5), and both the air inlet pipe (4) and the exhaust pipe (5) are equipped with switch valves.

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