CN219458576U - Explosion-proof air duct type electric heater junction box - Google Patents
Explosion-proof air duct type electric heater junction box Download PDFInfo
- Publication number
- CN219458576U CN219458576U CN202222771080.3U CN202222771080U CN219458576U CN 219458576 U CN219458576 U CN 219458576U CN 202222771080 U CN202222771080 U CN 202222771080U CN 219458576 U CN219458576 U CN 219458576U
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- junction box
- cylinder body
- round
- explosion
- electric heater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
The utility model discloses an explosion-proof air duct type electric heater junction box. The electric heater comprises a square junction box cylinder body positioned at an electric heater wiring end, a round cylinder body is arranged on the square junction box cylinder body, a round cover plate is packaged at the outer side end part of the round cylinder body, and a round spigot positioned at the inner side of the round cover plate is arranged in the round cylinder body. After adopting foretell structure, just can satisfy flame proof joint face length and clearance requirement through machining, utilize the circular tang of design can conveniently make and install simultaneously, avoided traditional machining difficulty and the poor potential safety hazard that brings of leakproofness, make it accord with the explosion-proof requirement in the explosion-proof (take the tang explosion-proof), fail safe nature is high to the application range of explosion-proof tuber pipe formula heater has been enlarged.
Description
Technical Field
The utility model relates to an electric heater structure, in particular to an explosion-proof air duct type electric heater junction box.
Background
In the conventional use environment, the conventional air duct type electric heater generally adopts a square (square or rectangular) structure with convenient processing, installation and arrangement, and meanwhile, a square cover plate is packaged on the end face of the junction box, however, when the air duct type electric heater is applied to special fields of petroleum, chemical industry, military industry, medicines and the like, a spigot is required to be arranged, so that the air duct type electric heater meets the explosion-proof standard requirement, the length and the clearance requirement of an explosion-proof joint face are difficult to meet by adopting the square junction box for mechanical processing, and the proper spigot specification is difficult to process, so that the manufacturing cost is high, the sealing performance cannot be effectively ensured, and therefore, the conventional square junction box is difficult to meet the explosion-proof standard requirement.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the explosion-proof air duct type electric heater junction box which is convenient to manufacture and install and can meet the requirements of explosion-proof and explosion-proof (explosion-proof with a spigot), thereby improving the application range of the junction box.
In order to solve the technical problem, the explosion-proof air duct type electric heater junction box comprises a square junction box cylinder body positioned at an electric heater wiring end, a round cylinder body is arranged on the square junction box cylinder body, a round cover plate is packaged at the outer side end part of the round cylinder body, and a round spigot positioned at the inner side of the round cover plate is arranged in the round cylinder body.
The outer side end part of the round cylinder body is provided with a round flange, and the round cover plate is fixedly connected with the round flange through a fastener.
And a sealing ring is arranged between the round cover plate and the round flange.
The square junction box is characterized in that at least two circular cylinders and a plurality of circular cover plates matched with the circular cylinders are arranged on the square junction box cylinder, and circular rabbets positioned on the inner sides of the circular cover plates are arranged in the circular cylinders.
The square junction box cylinder body is a square junction box cylinder body.
The square junction box cylinder body is a rectangular junction box cylinder body.
After adopting foretell structure, through directly setting up circular barrel on square terminal box barrel and setting up the circular tang that is located circular apron inboard in circular barrel, just so can satisfy explosion-proof joint face length and clearance requirement through machining, utilize designed circular tang can conveniently make and install simultaneously, avoided traditional machining to be difficult and the poor potential safety hazard that brings of leakproofness, make it accord with the explosion-proof requirement in (take tang explosion-proof), fail safe nature is high, thereby the application range of explosion-proof tuber pipe formula heater has been enlarged.
Drawings
FIG. 1 is a schematic diagram of a front view structure according to a first embodiment of the present utility model;
FIG. 2 is a schematic side view of a first embodiment of the present utility model;
FIG. 3 is a schematic diagram of a front view structure of a second embodiment of the present utility model;
fig. 4 is a schematic side view of a second embodiment of the present utility model.
Detailed Description
The explosion-proof air duct type electric heater junction box of the utility model is further described in detail below with reference to the accompanying drawings and detailed description.
Example 1
As shown in fig. 1-2, the explosion-proof air duct type electric heater junction box of the embodiment comprises a square junction box cylinder body positioned at an electric heater wiring end, wherein the front end of the square junction box cylinder body is provided with a circular cylinder body 2, the outer side end part of the circular cylinder body 2 is provided with a circular flange 5, the outer side end part of the circular cylinder body 2 is provided with a circular cover plate 3 fixedly connected with the circular flange 5 through a fastener, a sealing ring 6 is arranged between the circular cover plate 3 and the circular flange 5, and therefore sealing installation is realized, and a circular spigot 4 positioned at the inner side of the circular cover plate is arranged in the circular cylinder body 2.
Example two
As shown in fig. 3-4, the explosion-proof air duct type electric heater junction box of the embodiment comprises a rectangular junction box cylinder body (meeting the arrangement and wiring requirements of heating pipes) positioned at the wiring end of the electric heater, an upper circular cylinder body 2 and a lower circular cylinder body 2 are welded at the front end opening of the rectangular junction box cylinder body, the square arrangement and wiring of the heating pipes are not affected, the requirements of the explosion-proof junction surface length and the gap of the explosion-proof heater can be met, circular flanges 5 are arranged at the outer side end parts of the two circular cylinder bodies 2, circular cover plates 3 fixedly connected with the circular flanges 5 through fasteners are further arranged at the outer side end parts of the two circular cylinder bodies 2, sealing rings 6 are arranged between each circular cover plate 3 and each circular flange 5, and circular rabbets 4 positioned at the inner sides of the respective circular cover plates are arranged in the two circular cylinder bodies 2.
Claims (6)
1. The utility model provides an explosion-proof wind channel formula electric heater terminal box, is including square terminal box barrel (1) that are located electric heater wiring end, its characterized in that: the square junction box is characterized in that a round cylinder body (2) is arranged on the square junction box cylinder body (1), a round cover plate (3) is packaged at the outer side end part of the round cylinder body (2), and a round spigot (4) positioned at the inner side of the round cover plate is arranged in the round cylinder body (2).
2. An explosion-proof air-duct type electric heater junction box as set forth in claim 1, wherein: the circular cylinder body (2) is characterized in that a circular flange (5) is arranged at the outer side end part of the circular cylinder body (2), and the circular cover plate (3) is fixedly connected with the circular flange (5) through a fastener.
3. The explosion-proof air-duct type electric heater junction box according to claim 2, wherein: a sealing ring (6) is arranged between the round cover plate (3) and the round flange (5).
4. An explosion-proof air-duct electric heater junction box as set forth in claim 1, 2 or 3, wherein: the square junction box is characterized in that at least two round cylinder bodies (2) and a plurality of round cover plates (3) matched with the round cylinder bodies are arranged on the square junction box cylinder body (1), and round spigot (4) positioned on the inner sides of the round cover plates are arranged in each round cylinder body (2).
5. The explosion-proof air-duct electric heater junction box of claim 4, wherein: the square junction box cylinder body (1) is a square junction box cylinder body.
6. The explosion-proof air-duct electric heater junction box of claim 4, wherein: the square junction box cylinder body (1) is a rectangular junction box cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222771080.3U CN219458576U (en) | 2022-10-20 | 2022-10-20 | Explosion-proof air duct type electric heater junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222771080.3U CN219458576U (en) | 2022-10-20 | 2022-10-20 | Explosion-proof air duct type electric heater junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219458576U true CN219458576U (en) | 2023-08-01 |
Family
ID=87420348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222771080.3U Active CN219458576U (en) | 2022-10-20 | 2022-10-20 | Explosion-proof air duct type electric heater junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219458576U (en) |
-
2022
- 2022-10-20 CN CN202222771080.3U patent/CN219458576U/en active Active
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