CN105742999A

CN105742999A - Three-proof power distribution box with automatic fire extinguishing function

Info

Publication number: CN105742999A
Application number: CN201610222820.4A
Authority: CN
Inventors: 许征鹏; 许玉蕊
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-12
Filing date: 2016-04-12
Publication date: 2016-07-06

Abstract

The invention discloses a three-proof power distribution box with an automatic fire extinguishing function. The three-proof power distribution box comprises a power distribution box shell (1), a inner pipe coil (2), an outer pipe coil (3), a circulation fan (4), a power distribution box door (7) and a temperature control fire valve (5). Compared with the prior art, the three-proof power distribution box has the advantages of simplicity in structure, the electrical device installation environment is completely isolated from an external environment, the temperature inside a control cabinet is reduced through flow exchange of flame-retardant gases inside the inner pipe coil and the outer pipe coil, and the occurrence rate of an safety accident caused by heating of a current loop is reduced; and meanwhile, the temperature control fire valve can be automatically opened to control fire spreading when fire is on due to an internal fault, and the three-proof power distribution box can be widely applied to occasions such as chemical engineering, a coal mine and a gas station with partial dust, humidity and corrosive gas.

Description

There are three anti-distribution boxs of automatic fire-extinguishing function

Technical field

The invention belongs to control panel field, relate to a kind of distribution box, particularly relate to a kind of radiating effect good and there are a kind of three anti-distribution boxs with automatic fire-extinguishing function of automatic fire-extinguishing function.

Background technology

Distribution box is by electrical wiring requirement, switchgear, measurement instrument, protection electrical equipment and auxiliary equipment to be assembled in closing or semiclosed metal safe and constituted.In prior art, according to the difference using environment, the functional character of distribution box had different technology requirements, such as need to adopt three anti-distribution boxs in the occasion of part dust, moisture and corrosive gas, though three anti-distribution boxs of the prior art have well dust-proof, moistureproof, Corrosion Protection, but when summer high temperature, owing to electric cabinet can not effectively dispel the heat, in-box electric appliance element is usually in the environment of supercritical temperature rise and works, the electric property of element will be reduced, affect its safety and service life；And causing the temperature inside the box to raise when electric elements work in winter, cold humid air enters will produce condensation in case on electric elements, directly reduces the insulating properties of electric elements, affects its safety and service life equally；And the distribution box of prior art does not all possess automatic fire-extinguishing function.

Summary of the invention

For above-mentioned situation, the invention provides a kind of three anti-distribution boxs with automatic fire-extinguishing function, main by distribution box housing (1), inner coil pipe (2), outer coil pipe (3), circulating fan (4), distribution box door (7) and temperature control fire valve (5) composition, it is characterized in that: distribution box housing (1) inside top and outside top are respectively equipped with inner coil pipe (2) and outer coil pipe (3), entrance and outer coil pipe (3) outlet connection the internal inner coil pipe (2) of distribution box housing (1) install circulating fan (4), the entrance of the outlet of inner coil pipe (2) and outer coil pipe (3) is directly connected to, temperature control fire valve (5) is installed at the connection straight length place of inner coil pipe (2) and outer coil pipe (3), hinge and door lock is adopted to be connected with distribution box housing (1), an airtight cavity is formed after closedown.

Described inner coil pipe (2) and outer coil pipe (3) are internal is filled with fire-retardant gas, fill that capacity is distribution box housing (1) volume 1.5 ~ 1.8 times.

Described distribution box housing (1) and distribution box door (7) liner adopt cold-rolled carbon steel plate sheet welding molding, and inner wall anti-corrosive layer is plastic-blasting, and outer wall anticorrosive coat adopts the fireproof glass epoxy of flame-retarded resin mixed liquor and glass fiber and glass fiber yarn alternately coating composition；

Described flame-retarded resin mixed liquor is made up of unsaturated polyester resin, fire retardant, age resister, firming agent, accelerator, anti-depressant prescription.

In above technical scheme, there is inside it device well-known in the art and circuit structure, be able to observe that the current operating parameter of internal token instruction by airtight implosion guard observation window, its circuit connection mode is with reference to the general technology general knowledge of the art.Described temperature control fire valve (5), for spraying fire-retardant gas at hour of danger, thus being isolated with fuel gas physical property by electric arc, and then avoids blast.

Relative to prior art, the three anti-distribution boxs with automatic fire-extinguishing function of the present invention have the advantage that simple in construction, electric mounting environment is completely isolated with external environment condition, reduce the temperature within switch board by the flowing exchange of inner coil pipe and outer coil pipe internal ignition resistant gas, reduce the security incident incidence rate because current loop heating causes；When internal fault is caught fire, temperature control fire valve can automatically open up control fire spreading simultaneously, can be widely applied to the occasion of part dust, moisture and the corrosive gas such as chemical industry, colliery, gas station.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention；

In figure: 1 power distribution cabinet housing, 2 inner coil pipes, 3 outer coil pipes, 4 circulating fans, 5 temperature control fire valves, 6 cable incoming-outgoing mouths.

Detailed description of the invention

Below in conjunction with accompanying drawing, the invention will be further described:

As shown in Figure 1, give the present invention a kind of three anti-distribution boxs with automatic fire-extinguishing function, main by distribution box housing (1), inner coil pipe (2), outer coil pipe (3), circulating fan (4), distribution box door (7) and temperature control fire valve (5) composition, it is characterized in that: distribution box housing (1) inside top and outside top are respectively equipped with inner coil pipe (2) and outer coil pipe (3), entrance and outer coil pipe (3) outlet connection the internal inner coil pipe (2) of distribution box housing (1) install circulating fan (4), the entrance of the outlet of inner coil pipe (2) and outer coil pipe (3) is directly connected to, temperature control fire valve (5) is installed at the connection straight length place of inner coil pipe (2) and outer coil pipe (3), hinge and door lock is adopted to be connected with distribution box housing (1), an airtight cavity is formed after closedown.

Further, described inner coil pipe (2) and outer coil pipe (3) can be arranged on side and the bottom of power distribution cabinet housing (1) according to power distribution cabinet installation environment situation.

Further, described inner coil pipe (2) and outer coil pipe (3) are internal is filled fire-retardant gas, for nitrogen, argon and carbon dioxide gas mixture, it is also possible to be wherein pure gas；When power distribution cabinet is internal occur short circuit or overload cause element catch fire phenomenon time, temperature control fire valve (5) automatically opens up inner coil pipe (2) and outer coil pipe (3) internal ignition resistant gas pours knock down the flame in power distribution cabinet.

Claims

1. there are three anti-distribution boxs of automatic fire-extinguishing function, main by distribution box housing (1), inner coil pipe (2), outer coil pipe (3), circulating fan (4), distribution box door (7) and temperature control fire valve (5) composition, it is characterized in that: distribution box housing (1) inside top and outside top are respectively equipped with inner coil pipe (2) and outer coil pipe (3), entrance and outer coil pipe (3) outlet connection the internal inner coil pipe (2) of distribution box housing (1) install circulating fan (4), the entrance of the outlet of inner coil pipe (2) and outer coil pipe (3) is directly connected to, temperature control fire valve (5) is installed at the connection straight length place of inner coil pipe (2) and outer coil pipe (3), hinge and door lock is adopted to be connected with distribution box housing (1), an airtight cavity is formed after closedown.

2. there are three anti-distribution boxs of automatic fire-extinguishing function according to claim 1, it is characterised in that: described inner coil pipe (2) and outer coil pipe (3) are internal is filled with fire-retardant gas, fill that capacity is distribution box housing (1) volume 1.5 ~ 1.8 times.

3. there are three anti-distribution boxs of automatic fire-extinguishing function according to claim 1, it is characterized in that: described distribution box housing (1) and distribution box door (7) liner adopt cold-rolled carbon steel plate sheet welding molding, inner wall anti-corrosive layer is plastic-blasting, and outer wall anticorrosive coat adopts the fireproof glass epoxy of flame-retarded resin mixed liquor and glass fiber and glass fiber yarn alternately coating composition.

4. there are three anti-distribution boxs of automatic fire-extinguishing function according to claim 3, it is characterised in that: described flame-retarded resin mixed liquor is made up of unsaturated polyester resin, fire retardant, age resister, firming agent, accelerator, anti-depressant prescription.