Explosion-proof space heater

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By designing explosion-proof space heaters, including housing brackets, fans, explosion-proof wiring boxes and other components, and adopting a multi-layer protection design, the problems of the existing explosion-proof electric heaters' control logic not meeting the control logic and unstable device performance are achieved, and safety is achieved Stable temperature control and efficient operation.

CN222438178UActive Publication Date: 2025-02-07CHONGQING XIEMEI ELECTRIC CO LTD

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Patent Information

Application Number: CN202420996094.1
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-09
Publication Date: 2025-02-07
Estimated Expiration: 2034-05-09

AI Technical Summary

Technical Problem

The existing explosion-proof electric heaters do not meet the design control logic requirements and lack effective device performance and stable operation protection.

Method used

An explosion-proof space heater is designed, including a housing bracket, a fan, an explosion-proof wiring box, an explosion-proof box flange, an explosion-proof introduction component, a cast-sealed casing, a grounding bolt and a heater core group, and a multi-layer protection design is adopted, such as Overheating protection, non-operation protection, intermittent work protection, etc. to ensure safe and stable operation.

Benefits of technology

It realizes effective temperature control and stable operation protection, ensuring that the heater is automatically adjusted and operated under different temperature conditions, avoiding overheating and unnecessary energy consumption, and ensuring the safe and efficient operation of the equipment.

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Abstract

The utility model relates to the technical field of explosion-proof electric heating, and particularly discloses an explosion-proof space heater, which comprises a shell support, a fan, an explosion-proof junction box, an explosion-proof box flange, an explosion-proof leading-in assembly, an encapsulated wire passing sleeve, a grounding bolt and a heater core group, and is characterized in that the fan is fixedly connected with the shell support, the explosion-proof junction box is fixedly connected with the shell support, and the explosion-proof box flange is fixedly connected with the heater core group; the explosion-proof box flange is fixedly connected with the explosion-proof junction box, the two explosion-proof leading-in assemblies are fixedly connected with the explosion-proof junction box, the two encapsulated wire passing sleeves are fixedly connected with the explosion-proof junction box, the grounding bolt is fixedly connected with the explosion-proof junction box, and the heater core set is fixedly connected with the explosion-proof junction box and located on one side of the explosion-proof junction box. And the heater core group is positioned in the shell bracket. Through the operation mode, the purpose of keeping the indoor temperature is achieved, the anti-explosion space heater has the protection design, and safe and stable operation of the anti-explosion space heater is guaranteed.

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Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof electric heating, in particular to an explosion-proof space heater. Background Art

[0002] At present, explosion-proof electric heaters are a type of heater that converts electrical energy into thermal energy to heat the material to be heated. During operation, the low-temperature fluid medium enters its input port through a pipeline under pressure, and follows the specific heat exchange flow channel inside the electric heating container. The path designed using the principles of fluid thermodynamics takes away the high-temperature thermal energy generated by the electric heating element during operation, increases the temperature of the heated medium, and obtains the high-temperature medium required by the process at the outlet of the electric heater.

[0003] However, the existing technology does not meet the control logic requirements of the design and does not have effective device performance and stable operation protection. Utility Model Content

[0004] The utility model aims to provide an explosion-proof space heater, aiming to solve the technical problems in the prior art that the control logic requirements of the design are not met and effective device performance and stable operation protection are not provided.

[0005] To achieve the above-mentioned purpose, the utility model adopts an explosion-proof space heater, including a shell bracket, a fan, an explosion-proof junction box, an explosion-proof box flange, an explosion-proof introduction component, a cast-in wire sleeve, a grounding bolt and a heater core group, the fan is fixedly connected to the shell bracket and embedded in the interior of the shell, the explosion-proof junction box is fixedly connected to the shell bracket and embedded in the interior of the shell bracket, the explosion-proof box flange is fixedly connected to the explosion-proof junction box and is located on one side of the explosion-proof junction box, the number of the explosion-proof introduction components is two, and the two The explosion-proof lead-in components are respectively fixedly connected to the explosion-proof junction box and are respectively located on one side of the explosion-proof junction box. The number of the cast-in wire bushings is two. The two cast-in wire bushings are respectively fixedly connected to the explosion-proof junction box and are respectively located on one side of the explosion-proof junction box. The grounding bolt is fixedly connected to the explosion-proof junction box and is located on one side of the explosion-proof junction box. The heater core group is fixedly connected to the explosion-proof junction box and is located on one side of the explosion-proof junction box, and the heater core group is located inside the shell bracket.

[0006] Among them, each of the explosion-proof introduction components includes an explosion-proof introducer body, a sealing ring, a clamping nut and a clamping flat washer. The explosion-proof introducer body is fixedly connected to the explosion-proof junction box and embedded in one side of the explosion-proof junction box. The sealing ring is embedded in the interior of the explosion-proof introducer body. The clamping flat washer is embedded in one side of the explosion-proof introducer body, and the clamping flat washer is located on one side of the sealing ring. The clamping nut is threadedly connected to the explosion-proof introducer body and is located at one end of the explosion-proof introducer body.

[0007] One side of the explosion-proof box flange is provided with a power indicator light opening, an air opening and a controller opening.

[0008] Among them, the heater core group includes a heating flange plate, a temperature control switch, a first heating tube and a second heating tube. The heating flange plate is fixedly connected to the explosion-proof junction box and is located on one side of the explosion-proof junction box. The temperature control switch is arranged on one side of the heating flange plate. The number of the first heating tube and the number of the second heating tube are respectively multiple, and the multiple first heating tubes and the multiple second heating tubes are respectively arranged on one side of the heating flange plate, and the multiple first heating tubes and the multiple second heating tubes are staggered.

[0009] Among them, the shell bracket includes a sheet metal body, a left sheet metal, a right sheet metal, a heating tube support plate and an air outlet fence, the left sheet metal is fixedly connected to the sheet metal body and is located on one side of the sheet metal body, the right sheet metal is fixedly connected to the sheet metal body and is located on one side of the sheet metal body, the heating tube support plate is fixedly connected to the sheet metal body and is located inside the sheet metal body, and the air outlet fence is fixedly connected to the sheet metal body and is located on one side of the sheet metal body.

[0010] The utility model provides an explosion-proof space heater with the following beneficial effects: when the indoor set temperature is lower than the indoor measured temperature, it is in standby mode and does not operate; when the indoor set temperature is higher than the indoor measured temperature, the fan operates in advance; after the sensor detects the wind pressure, the first heating tube and the second heating tube are turned on for heating through the heating switch; when the temperature detected by the sensor is within 250±5°C, the heating operates normally; when the temperature exceeds 250±5°C, the heating is turned off, and the fan continues to operate to blow out the residual heat; when the indoor set temperature is lower than the indoor measured temperature, the first heating tube and the second heating tube are turned off, and the fan continues to work for three minutes to blow out the residual heat and then stops operating; the purpose of maintaining the indoor temperature is achieved through the above operating mode; the explosion-proof space heater is provided with overheating protection, non-operation protection, intermittent work protection, no wind pressure protection, fan non-start-up protection, pipe surface over-temperature protection and residual heat blowing protection, so that the explosion-proof space heater has a protection design to ensure the safe and stable operation of the explosion-proof space heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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 only 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.

[0012] Figure 1 It is a structural schematic diagram of the explosion-proof space heater of the utility model.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the explosion-proof space heater of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the explosion-proof junction box of the utility model.

[0015] Figure 4 It is a side view of the explosion-proof junction box of the utility model.

[0016] Figure 5 It is a cross-sectional view of the internal structure of the explosion-proof junction box of the utility model.

[0017] Figure 6 It is a structural schematic diagram of the heater core group of the utility model.

[0018] Figure 7 It is a schematic diagram of the exploded structure of the shell bracket of the utility model.

[0019] 1-shell bracket, 2-fan, 3-explosion-proof junction box, 4-explosion-proof box flange, 5-explosion-proof introduction assembly, 6-cast-in wire sleeve, 7-grounding bolt, 8-heater core group, 9-explosion-proof introducer body, 10-sealing ring, 11-tightening nut, 12-tightening flat washer, 13-power indicator light opening, 14-air opening, 15-controller opening, 16-heating flange plate, 17-temperature control switch, 18-first heating tube, 19-second heating tube, 20-sheet metal body, 21-left sheet metal, 22-right sheet metal, 23-heating tube support plate, 24-air outlet fence. DETAILED DESCRIPTION

[0020] See also Figures 1 to 7The utility model provides an explosion-proof space heater, comprising a shell support 1, a fan 2, an explosion-proof junction box 3, an explosion-proof box flange 4, an explosion-proof introduction component 5, a cast wire sleeve 6, a grounding bolt 7 and a heater core group 8, wherein the fan 2 is fixedly connected to the shell support 1 and embedded in the interior of the shell, the explosion-proof junction box 3 is fixedly connected to the shell support 1 and embedded in the interior of the shell support 1, the explosion-proof box flange 4 is fixedly connected to the explosion-proof junction box 3 and is located on one side of the explosion-proof junction box 3, the number of the explosion-proof introduction components 5 is two, and the two explosion-proof introduction components 5 are The explosion-proof introduction components 5 are fixedly connected to the explosion-proof junction box 3, and are respectively located on one side of the explosion-proof junction box 3. The number of the cast-in-place wire bushings 6 is two, and the two cast-in-place wire bushings 6 are respectively fixedly connected to the explosion-proof junction box 3, and are respectively located on one side of the explosion-proof junction box 3. The grounding bolt 7 is fixedly connected to the explosion-proof junction box 3 and is located on one side of the explosion-proof junction box 3. The heater core group 8 is fixedly connected to the explosion-proof junction box 3 and is located on one side of the explosion-proof junction box 3, and the heater core group 8 is located inside the shell bracket 1.

[0021] Furthermore, each of the explosion-proof introduction components 5 includes an explosion-proof introducer body 9, a sealing ring 10, a clamping nut 11 and a clamping flat washer 12, the explosion-proof introducer body 9 is fixedly connected to the explosion-proof junction box 3 and embedded in one side of the explosion-proof junction box 3, the sealing ring 10 is embedded in the interior of the explosion-proof introducer body 9, the clamping flat washer 12 is embedded in one side of the explosion-proof introducer body 9, and the clamping flat washer 12 is located on one side of the sealing ring 10, the clamping nut 11 is threadedly connected to the explosion-proof introducer body 9, and is located at one end of the explosion-proof introducer body 9.

[0022] Furthermore, one side of the explosion-proof box flange 4 is provided with a power indicator light opening 13 , an air opening 14 and a controller opening 15 .

[0023] Furthermore, the heater core group 8 includes a heating flange plate 16, a temperature control switch 17, a first heating tube 18 and a second heating tube 19. The heating flange plate 16 is fixedly connected to the explosion-proof junction box 3 and is located on one side of the explosion-proof junction box 3. The temperature control switch 17 is arranged on one side of the heating flange plate 16. The number of the first heating tube 18 and the number of the second heating tube 19 are respectively multiple. The multiple first heating tubes 18 and the multiple second heating tubes 19 are respectively arranged on one side of the heating flange plate 16, and the multiple first heating tubes 18 and the multiple second heating tubes 19 are staggered.

[0024] Furthermore, the shell bracket 1 includes a sheet metal body 20, a left sheet metal 21, a right sheet metal 22, a heating tube support plate 23 and an air outlet fence 24, the left sheet metal 21 is fixedly connected to the sheet metal body 20 and is located on one side of the sheet metal body 20, the right sheet metal 22 is fixedly connected to the sheet metal body 20 and is located on one side of the sheet metal body 20, the heating tube support plate 23 is fixedly connected to the sheet metal body 20 and is located inside the sheet metal body 20, and the air outlet fence 24 is fixedly connected to the sheet metal body 20 and is located on one side of the sheet metal body 20.

[0025] In this embodiment, the sheet metal body 20, the left sheet metal 21, the right sheet metal 22, the heating tube support plate 23 and the air outlet fence 24 constitute a mounting component, the heating tube support plate 23 supports and fixes the first heating tube 18 and the second heating tube 19, the heating flange plate 16 installs and fixes the temperature control switch 17, the first heating tube 18 and the second heating tube 19, and the temperature control switch 17 controls the heating temperature of the first heating tube 18 and the second heating tube 19. The compression nut 11 protects the compression flat washer 12 and the sealing ring 10 for the explosion-proof introducer body 9, so as to achieve the purpose of waterproofing and dustproofing. The first heating tube 18 and the second heating tube 19 are heated, and the hot air is brought out by the fan 2 to achieve the purpose of increasing the temperature. When the indoor set temperature is lower than the indoor measured temperature, it is in standby state and does not perform. Operation, when the indoor set temperature is higher than the indoor measured temperature, the fan 2 starts running in advance, and when the sensor detects the wind pressure, the first heating tube 18 and the second heating tube 19 are turned on for heating through the heating switch, and when the sensor detects the temperature within 250±5℃, the heating operates normally, and when the temperature exceeds 250±5℃, the heating is turned off, and the fan 2 continues to run to blow out the waste heat, and when the indoor set temperature is lower than the indoor measured temperature, the first heating tube 18 and the second heating tube 19 are turned off, and the fan 2 continues to work for three minutes to blow out the waste heat and then stops running. The purpose of maintaining the indoor temperature is achieved through the above operation mode. The explosion-proof space heater is provided with overheating protection, non-operation protection, intermittent work protection, no wind pressure protection, the fan 2 is not turned on protection, pipe surface over-temperature protection and blowing waste heat protection, which can make the explosion-proof space heater have a protection design to ensure the safe and stable operation of the explosion-proof space heater.

[0026] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. An explosion-proof space heater, characterized in that: It includes a shell bracket, a fan, an explosion-proof junction box, an explosion-proof box flange, an explosion-proof introduction component, a cast-in wire bushing, a grounding bolt and a heater core group. The fan is fixedly connected to the shell bracket and embedded in the interior of the shell. The explosion-proof junction box is fixedly connected to the shell bracket and embedded in the interior of the shell bracket. The explosion-proof box flange is fixedly connected to the explosion-proof junction box and is located on one side of the explosion-proof junction box. The number of the explosion-proof introduction components is two, and the two explosion-proof introduction components are respectively fixedly connected to the explosion-proof junction box and are respectively located on one side of the explosion-proof junction box. The number of the cast-in wire bushings is two, and the two cast-in wire bushings are respectively fixedly connected to the explosion-proof junction box and are respectively located on one side of the explosion-proof junction box. The grounding bolt is fixedly connected to the explosion-proof junction box and is located on one side of the explosion-proof junction box. The heater core group is fixedly connected to the explosion-proof junction box and is located on one side of the explosion-proof junction box, and the heater core group is located inside the shell bracket.

2. The explosion-proof space heater according to claim 1, characterized in that: Each of the explosion-proof introduction components includes an explosion-proof introducer body, a sealing ring, a clamping nut and a clamping flat washer. The explosion-proof introducer body is fixedly connected to the explosion-proof junction box and embedded in one side of the explosion-proof junction box. The sealing ring is embedded in the interior of the explosion-proof introducer body. The clamping flat washer is embedded in one side of the explosion-proof introducer body, and the clamping flat washer is located on one side of the sealing ring. The clamping nut is threadedly connected to the explosion-proof introducer body and is located at one end of the explosion-proof introducer body.

3. The explosion-proof space heater according to claim 1, characterized in that: One side of the explosion-proof box flange is provided with a power indicator light opening, an air opening and a controller opening.

4. The explosion-proof space heater according to claim 1, characterized in that: The heater core group includes a heating flange plate, a temperature control switch, a first heating tube and a second heating tube. The heating flange plate is fixedly connected to the explosion-proof junction box and is located on one side of the explosion-proof junction box. The temperature control switch is arranged on one side of the heating flange plate. The number of the first heating tube and the number of the second heating tube are respectively multiple. The multiple first heating tubes and the multiple second heating tubes are respectively arranged on one side of the heating flange plate, and the multiple first heating tubes and the multiple second heating tubes are staggered.

5. The explosion-proof space heater according to claim 1, characterized in that: The shell bracket includes a sheet metal body, a left sheet metal, a right sheet metal, a heating tube support plate and an air outlet fence. The left sheet metal is fixedly connected to the sheet metal body and is located on one side of the sheet metal body. The right sheet metal is fixedly connected to the sheet metal body and is located on one side of the sheet metal body. The heating tube support plate is fixedly connected to the sheet metal body and is located inside the sheet metal body. The air outlet fence is fixedly connected to the sheet metal body and is located on one side of the sheet metal body.