CN102523715A - Arc-preventing device for mining flameproof equipment - Google Patents
Arc-preventing device for mining flameproof equipment Download PDFInfo
- Publication number
- CN102523715A CN102523715A CN2012100088422A CN201210008842A CN102523715A CN 102523715 A CN102523715 A CN 102523715A CN 2012100088422 A CN2012100088422 A CN 2012100088422A CN 201210008842 A CN201210008842 A CN 201210008842A CN 102523715 A CN102523715 A CN 102523715A
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- explosion
- arc
- flameproof
- proof device
- seal casinghousing
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- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to an arc-preventing device for mining flameproof equipment, which consists of at least one sealing shell which has a shape like an inverted Chinese character 'Ao', and is arranged at the periphery of the flameproof equipment. The sealing shell is fixed on the flameproof surface of the flameproof equipment, a flameproof clearance is formed in the concave part of the sealing shell, and arc extinguishing particles are encapsulated in the sealing shell. The arc-preventing device for the mining flameproof equipment has a simple structure, and is convenient to mount and use and suitable for underground coal mines with explosive gas (methane) and coal dust, and the technical problem that the flameproof electric equipment cannot prevent short-circuit arc light from leaking to the outside is effectively solved.
Description
Technical field
The present invention relates to a kind of explosion-proof device for mine, particularly relate to a kind of explosion-proof device for mine that prevents that electric short circuit electric arc from leaking that has.
Background technology
Flameproof electrical apparatus is meant and places " the electric body " that possibly produce spark, electric arc and dangerous high temperature under normal operation or the malfunction in the explosion separation structure shell; In damp gets into shell, lighted when blasting; This shell can bear inner blast pressure and can not cause the propagation of extraneous explosion property mixture, and the electric equipment with this flameproof enclosure protection just is flameproof electrical apparatus.Flameproof electrical apparatus is widely used in getting working face under the coal mine to be had in the dangerous place of gas explosion.
The flameproof enclosure of flameproof electrical apparatus has anti-quick-fried property and flame proof property; In order to stop the ignite explosive mixture of shell outside of shell implode property mixture explosive product, be that flame proof gap between the explosion suppresion surface is the key that can flameproof enclosure flame proof in the connection junction of shell.The flame proof protected mode that common explosion suppresion surface adopts flange to connect, there is multiple structure in the flame proof gap, plane, seam type, screw-type or the like.
Yet; With present technical conditions; Flameproof electrical apparatus can not stop leaking of short circuit arc light to because the short circuiting arc that electric fault causes in the equipment is inoperative, and the short circuiting arc that electric failover causes in the equipment might fly out from the flame proof gap of flameproof electrical apparatus.Generally speaking, the energy of short circuit arc light is to light gas, and is explosion caused then.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing explosion-proof device, a kind of explosion-proof device for mine arc protection device is provided, leak to prevent the short circuit arc light in the explosion-proof device.
Explosion-proof device for mine arc protection device of the present invention is made up of one " recessed " type seal casinghousing that falls of being no less than that covers on explosion-proof device periphery; Said seal casinghousing is fixed on the explosion suppresion surface of explosion-proof device; The flame proof gap places in the concave portions of seal casinghousing, in seal casinghousing, is packaged with the arc extinguishing particle.
Further, be provided with fixing screw hole, hold-down screw is set in the hole, be used for seal casinghousing is fixed on the explosion suppresion surface of explosion-proof device in the one side of said seal casinghousing.
Usually, the profile of said seal casinghousing is according to the shaped design of explosion-proof device, matches with the profile of explosion-proof device explosion suppresion surface.
Seal casinghousing of the present invention uses explosive open form material manufacture, and arc extinguishing particle of encapsulation is the various granular materials that are easy at a distance from the short circuit arc light that goes out in it, the preferred quartz sand particle of the present invention.
Explosion-proof device for mine arc protection apparatus structure of the present invention is simple, easy to install, efficiently solves the technical barrier that flameproof electrical apparatus can not stop the short circuit arc light to leak, and is suitable under the coal mine that contains damp (methane) and coal dust, using.
Description of drawings
Fig. 1 is the cross section structure sketch map of explosion-proof device for mine arc protection device of the present invention.
Fig. 2 is the scheme of installation of explosion-proof device for mine arc protection device of the present invention on explosion-proof device.
Embodiment
The structure of explosion-proof device for mine arc protection device is as shown in Figure 1, is the seal casinghousing 2 that uses of explosive open form material manufacture to fall " recessed " type, is packaged with the arc extinguishing particle 1 of quartz sand particle or other materials in it.One side at seal casinghousing 2 is provided with fixing screw hole 3, is provided with in the hole to be used for seal casinghousing 2 is fixed on the hold-down screw 4 on the explosion suppresion surface 6 of explosion-proof device.Like Fig. 2, when seal casinghousing 2 is fixed on 6 last times of explosion suppresion surface of explosion-proof device, flame proof gap 5 is placed in the concave portions of seal casinghousing 2.
Seal casinghousing 2 is housed in the periphery of explosion-proof device, and its profile is coincide with the profile of explosion-proof device explosion suppresion surface 6 according to the shaped design of explosion-proof device.For example, general explosion-proof device explosion suppresion surface 6 is a rectangle, and 4 limits are arranged, and then on every limit, all is covered with a seal casinghousing 2, and the flame proof gap 5 on every limit on the explosion suppresion surface 6 all is wrapped in the concave portions of seal casinghousing 2.
When the arc light that is short-circuited leaks; The seal casinghousing 2 that is fixed on the explosion suppresion surface 6 is at first broken; Inner quartz sand particle or other materials arc extinguishing particle 1 will splash out; These particles can be wrapped in around the shell of explosion-proof device, play the effect of cooling, arc extinguishing, isolation explosive mixture, thereby ensure operating personnel's personal safety.
Claims (4)
1. explosion-proof device for mine arc protection device; It is characterized in that constituting by one " recessed " type seal casinghousing that falls of being no less than that covers on explosion-proof device periphery; Said seal casinghousing is fixed on the explosion suppresion surface of explosion-proof device; The flame proof gap places in the concave portions of seal casinghousing, in seal casinghousing, is packaged with the arc extinguishing particle.
2. explosion-proof device for mine arc protection device according to claim 1 is characterized in that being provided with fixing screw hole in the one side of said seal casinghousing, and hold-down screw is set in the hole.
3. explosion-proof device for mine arc protection device according to claim 1 is characterized in that the profile of said seal casinghousing and the profile of explosion-proof device explosion suppresion surface match.
4. explosion-proof device for mine arc protection device according to claim 1 is characterized in that described arc extinguishing particle is a quartz sand particle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100088422A CN102523715A (en) | 2012-01-12 | 2012-01-12 | Arc-preventing device for mining flameproof equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100088422A CN102523715A (en) | 2012-01-12 | 2012-01-12 | Arc-preventing device for mining flameproof equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102523715A true CN102523715A (en) | 2012-06-27 |
Family
ID=46294469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100088422A Pending CN102523715A (en) | 2012-01-12 | 2012-01-12 | Arc-preventing device for mining flameproof equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102523715A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926793A (en) * | 2012-11-16 | 2013-02-13 | 湖南凌天科技有限公司 | Anti-explosion, fireproof, dust-proof and noise-proof device for mine equipment |
| CN112542826A (en) * | 2020-12-03 | 2021-03-23 | 合肥开关厂有限公司 | Arc light protection device in explosion-proof pipe opening cavity for mine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2563490Y (en) * | 2002-07-03 | 2003-07-30 | 张文魁 | Fast warming heater and warming device |
| CN200997329Y (en) * | 2006-11-01 | 2007-12-26 | 李炬 | Simple pressure-sensitive resistor of arc-suppressing and flame-retardant explosion-proof |
| CN101540522A (en) * | 2008-03-20 | 2009-09-23 | 上海电气集团上海电机厂有限公司 | Method for assembling cable in cable connector of flameproof motor |
-
2012
- 2012-01-12 CN CN2012100088422A patent/CN102523715A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2563490Y (en) * | 2002-07-03 | 2003-07-30 | 张文魁 | Fast warming heater and warming device |
| CN200997329Y (en) * | 2006-11-01 | 2007-12-26 | 李炬 | Simple pressure-sensitive resistor of arc-suppressing and flame-retardant explosion-proof |
| CN101540522A (en) * | 2008-03-20 | 2009-09-23 | 上海电气集团上海电机厂有限公司 | Method for assembling cable in cable connector of flameproof motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926793A (en) * | 2012-11-16 | 2013-02-13 | 湖南凌天科技有限公司 | Anti-explosion, fireproof, dust-proof and noise-proof device for mine equipment |
| CN102926793B (en) * | 2012-11-16 | 2015-08-12 | 湖南凌天科技有限公司 | Mining equiment anti-explosion fire dust-separation is every rattle devices |
| CN112542826A (en) * | 2020-12-03 | 2021-03-23 | 合肥开关厂有限公司 | Arc light protection device in explosion-proof pipe opening cavity for mine |
| CN112542826B (en) * | 2020-12-03 | 2023-04-25 | 合肥开关厂有限公司 | Mining explosion-proof open lumen inner arc light protection device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |