CN201623929U - Explosion-proof box of electrical appliance - Google Patents
Explosion-proof box of electrical appliance Download PDFInfo
- Publication number
- CN201623929U CN201623929U CN2010201154042U CN201020115404U CN201623929U CN 201623929 U CN201623929 U CN 201623929U CN 2010201154042 U CN2010201154042 U CN 2010201154042U CN 201020115404 U CN201020115404 U CN 201020115404U CN 201623929 U CN201623929 U CN 201623929U
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- electric appliance
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- proof tank
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Abstract
The utility model relates to an explosion-proof box of an electrical appliance, which comprises a sealed box body, wherein an explosion-proof electrical appliance is arranged in the box body, and safe gas is charged into the box body. The box body is internally filled with the safe gas, the electrical appliance in the box body is arranged in a safe environment which can not cause explosion due to electric spark, and the explosion-proof box can achieve the effect of explosion resistance without the material with high mechanical strength, so that the explosion-proof box can be made from the material with light weight and has less machining difficult. Compared with the conventional technical scheme, the explosion-proof box of the electrical appliance has the advantages of being light in weight, convenient for carrying, low in manufacturing cost and the like.
Description
Technical field
The utility model relates to a kind of shell of electric equipment, particularly relates to a kind of explosion-proof tank for electric appliance of sealing.
Background technology
In the production process of industrial departments such as oil, coal, weaving, chemistry, tend to produce flammable explosion hazard gases or dust, the surrounding air of this class production unit often has flammable explosion hazard gases or dust to have explosivity because of mixing, and promptly heavy explosion takes place and causes a serious accident in case lighted by naked light.The electric spark that the appliance working equipment in the above-mentioned environment that is in produces in running is one of major reason that causes this class accident, but because extraneous explosive gas often is deep into the inside of electric equipment in the slit of the shell by electric equipment; Superheating phenomenon can take place in electric equipment in running, decompose in insulating oil that also can be from electric equipment or other organic insulation substrates and emit flammable explosion hazard gases; So, in case electric equipment produces spark, the flammable explosion hazard gases of enclosure just may be lighted and be blasted, and also might ignite the flammable explosion hazard gases in the space outerpace simultaneously and causes a serious accident.
For avoiding the generation of above-mentioned accident, usually the electrical equipment that will work in flammable explosive atmosphere is put into the flameproof cabinet of a sealing, with the contact of isolated flammable explosion hazard gases with electrical equipment, in case electrical equipment blast simultaneously, this Flameproof box can be controlled at explosive range in the casing.This thus Flameproof box must have well anti-quick-fried and explosion insulation performance, when blasting in the case, casing just can be not destroyed, so like this, tank material just needs very high mechanical strength, adopts the steel plate of bearing strength greater than 0.8Mpa usually in the practice.Because tank material is very thick, therefore this explosion-proof tank is very heavy, carries very constant.
The utility model content
It is lighter that the technical problem that the utility model solves provides a kind of weight, lower to the requirement of mechanical strength of material, the explosion-proof tank for electric appliance of convenient in carrying, low cost of manufacture.
Explosion-proof tank for electric appliance of the present utility model comprises the casing of sealing, and the electrical equipment that needs are explosion-proof places in the casing, charges into fail safe gas in described casing.
Explosion-proof tank for electric appliance of the present utility model, wherein, described fail safe gas is inert gas.
Explosion-proof tank for electric appliance of the present utility model, wherein, described fail safe gas is carbon dioxide.
Explosion-proof tank for electric appliance of the present utility model, wherein, described fail safe gas is nitrogen.
Explosion-proof tank for electric appliance of the present utility model, wherein, described fail safe gas is pure air.
Explosion-proof tank for electric appliance of the present utility model, wherein, described casing internal gas pressure is higher than the outer air pressure of casing.
Explosion-proof tank for electric appliance of the present utility model wherein, has entrance hole on the described casing, introduces power line by described entrance hole and is connected with described electrical equipment, and the outlet of described electrical equipment is drawn outside the described casing by the wire hole on the described casing.
Explosion-proof tank for electric appliance of the present utility model, wherein, in the described casing gas pressure sensor is installed, the described gas pressure sensor programmable logic controller (PLC) interior with being installed on described casing is connected, described programmable logic controller (PLC) is connected and installed in the relay in the described casing, described relay is connected with the power line that described entrance hole is introduced, described gas pressure sensor can detect the air pressure in the described casing, and signal passed to described programmable logic controller (PLC), described programmable logic controller (PLC) can cut off power supply in the described introducing casing by described relay.
The beneficial effects of the utility model are: owing to charge into fail safe gas in seal case, the electrical equipment in the casing is placed a security context that can not set off an explosion because of electric spark, do not need that the mechanical strength of tank material is very high can to reach explosion-proof effect.So can select for use many light materials as casing, and difficulty of processing is less.Compare advantage such as that explosion-proof tank for electric appliance of the present utility model has is in light weight, convenient in carrying, low cost of manufacture with conventional solution.
Explosion-proof tank for electric appliance of the present utility model charges into the element oxidation that inert gas can also prevent the electrical equipment in the casing, prolongs the useful life of electrical equipment.
Explosion-proof tank for electric appliance of the present utility model, casing internal gas pressure are higher than the outer air pressure of casing, and this has just guaranteed that the outer gas of casing can not enter in the casing, makes explosion-proof tank safer.
Explosion-proof tank for electric appliance of the present utility model, the setting pressure transducer is used for the air pressure in the detection case in the casing, electric appliance box loses explosion-proof to cause the case internal gas pressure to descend consequently in case casing leaks gas, gas pressure sensor will provide a signal to programmable logic controller (PLC), programmable logic controller (PLC) is with the control relay deenergization, thus elimination electrical equipment explosion hazard.
Description of drawings
Fig. 1 is the structural representation of explosion-proof tank for electric appliance of the present utility model, wherein the explosion-proof electrical equipment of built-in needs in the explosion-proof tank for electric appliance;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, explosion-proof tank for electric appliance of the present utility model comprises the explosion-proof casing 1 of rigidity of the rectangle of sealing, and the case mouth place of explosion-proof casing 1 is with explosion-proof case lid 2 sealings.For guaranteeing the sealing fully of explosion-proof casing 1, between explosion-proof casing 1 and explosion-proof case lid 2, be provided with the seal washer 4 of rubber material.Explosion-proof casing 1 and explosion-proof case lid 2 are fixed together by a plurality of fastening bolts 3 that pass seal washer 4.Have the inflation inlet and the exhaust outlet that have rubber seal 6 on the sidewall of explosion-proof casing 1, the gas-filled tube 13 and the blast pipe 14 that all have valve insert inflation inlet and exhaust outlet respectively.
Need explosion-proof electrical equipment 8 to be positioned in the explosion-proof casing 1, the entrance hole introducing power line 32 from explosion-proof casing 1 sidewall is connected with electrical equipment 8.The outlet 31 of electrical equipment 8 is drawn outside the explosion-proof casing 1 by the wire hole on the sidewall of explosion-proof casing 1.Entrance hole, wire hole all are equipped with rubber seal 6, in order to guarantee the sealing of explosion-proof casing 1.
Gas pressure sensor 21, programmable logic controller (PLC) 22 and relay 23 are installed in the explosion-proof tank.Gas pressure sensor 21 is connected with programmable logic controller (PLC) 22, and programmable logic controller (PLC) 22 connects relay 23, and relay 23 is introduced power line 32 with entrance hole 15 and is connected.After the explosion-proof electrical equipment 8 of needs places in the explosion-proof tank of sealing, use source of the gas in explosion-proof casing 1, to charge into inert gas 9 by gas-filled tube 13.Source of the gas can adopt the inert gas steel cylinder.Treat that the case internal gas pressure reaches the setting numerical value greater than the outer air pressure of case, closes the valve on the gas-filled tube 13.Electrical equipment 8 just places a security context that is full of inert gas 9 like this.Explosion-proof casing 1 internal gas pressure is higher than the outer air pressure of casing, and this has just guaranteed that the outer gas of case can not enter in the casing.Gas pressure sensor 21 is used for the air pressure in the detection case, explosion-proof tank loses explosion-proof to cause the case internal gas pressure to descend consequently in case casing leaks gas, gas pressure sensor 21 will provide a signal to programmable logic controller (PLC) 22, programmable logic controller (PLC) 22 is with control relay 23 deenergizations, thus the elimination explosion hazard.
Used gas of the present utility model also can adopt carbon dioxide, nitrogen or pure air.
The above embodiment only is that preferred implementation of the present utility model is described; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the ability those of ordinary skill is made the technical solution of the utility model all should fall in the definite protection range of claims of the present utility model.
Claims (10)
1. explosion-proof tank for electric appliance comprises the casing of sealing it is characterized in that the electrical equipment that needs are explosion-proof places in the casing, charges into fail safe gas in described casing.
2. explosion-proof tank for electric appliance as claimed in claim 1 is characterized in that, described fail safe gas is inert gas.
3. explosion-proof tank for electric appliance as claimed in claim 1 is characterized in that, described fail safe gas is carbon dioxide.
4. explosion-proof tank for electric appliance as claimed in claim 1 is characterized in that, described fail safe gas is nitrogen.
5. explosion-proof tank for electric appliance as claimed in claim 1 is characterized in that, described fail safe gas is pure air.
6. as each described explosion-proof tank for electric appliance of claim 1-5, it is characterized in that described casing internal gas pressure is higher than the outer air pressure of described casing.
7. explosion-proof tank for electric appliance as claimed in claim 6 is characterized in that, has entrance hole on the described casing, introduces power line by described entrance hole and is connected with described electrical equipment, and the outlet of described electrical equipment is drawn outside the described casing by the wire hole on the described casing.
8. explosion-proof tank for electric appliance as claimed in claim 7, it is characterized in that, in the described casing gas pressure sensor is installed, the described gas pressure sensor programmable logic controller (PLC) interior with being installed on described casing is connected, described programmable logic controller (PLC) is connected and installed in the relay in the described casing, described relay is connected with the power line that described entrance hole is introduced, described gas pressure sensor can detect the air pressure in the described casing, and signal passed to described programmable logic controller (PLC), described programmable logic controller (PLC) can cut off power supply in the described introducing casing by described relay.
9. explosion-proof tank for electric appliance as claimed in claim 8 is characterized in that, the case mouth place of described casing seals with case lid, is provided with seal washer between described casing and described case lid.
10. explosion-proof tank for electric appliance as claimed in claim 9 is characterized in that, described casing and described case lid are fixed together by the fastening bolt that passes described seal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201154042U CN201623929U (en) | 2010-02-11 | 2010-02-11 | Explosion-proof box of electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201154042U CN201623929U (en) | 2010-02-11 | 2010-02-11 | Explosion-proof box of electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201623929U true CN201623929U (en) | 2010-11-03 |
Family
ID=43027381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201154042U Expired - Fee Related CN201623929U (en) | 2010-02-11 | 2010-02-11 | Explosion-proof box of electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201623929U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778546A (en) * | 2010-02-11 | 2010-07-14 | 赵幼敏 | Explosion-proof tank for electric appliance |
| EP2924412A1 (en) * | 2014-03-27 | 2015-09-30 | Combustion and Energy S.r.l. | Apparatus and method for testing the seal of explosion-proof boxes |
| CN110715169A (en) * | 2019-11-05 | 2020-01-21 | 南通安思卓新能源有限公司 | Novel pressure boost explosion-proof container |
-
2010
- 2010-02-11 CN CN2010201154042U patent/CN201623929U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778546A (en) * | 2010-02-11 | 2010-07-14 | 赵幼敏 | Explosion-proof tank for electric appliance |
| EP2924412A1 (en) * | 2014-03-27 | 2015-09-30 | Combustion and Energy S.r.l. | Apparatus and method for testing the seal of explosion-proof boxes |
| CN110715169A (en) * | 2019-11-05 | 2020-01-21 | 南通安思卓新能源有限公司 | Novel pressure boost explosion-proof container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20130211 |