CN104218509A

CN104218509A - Fire-resistant cast bus duct

Info

Publication number: CN104218509A
Application number: CN201410438632.6A
Authority: CN
Inventors: 周汝文; 殷明; 张祯翔; 陈伟; 陆云
Original assignee: JIANGSU HUAPENG INTELLIGENT ELECTRICAL CO Ltd
Current assignee: JIANGSU HUAPENG INTELLIGENT ELECTRICAL CO Ltd
Priority date: 2014-08-29
Filing date: 2014-08-29
Publication date: 2014-12-17

Abstract

The invention discloses a fire-resistant cast bus duct. The fire-resistant cast bus duct has the advantages that a main structure of the fire-resistant cast bus duct is of an air type structure, insulating materials are made of fire-resistant and high-temperature-resistant resin by means of casting, fireproof paint is sprayed on the periphery of a bus after casting is completed, and then silica gel is adhered on the periphery of the bus; a bus duct body is invaded by high-temperature heat within 3-5 minutes of a fire hazard, a silica gel layer becomes hard, the paint begins to be foamed and expanded, a heat-insulation layer is formed, a heat conductivity coefficient is quickly increased, and accordingly heat transfer can be effectively reduced; the silica gel can be physically changed (hardened) in a high-temperature state, the hardness of the silica gel is increased along with elapse of the time, the heat-insulation and fire-insulation layer can be formed, and normal running of a bus body can be effectively protected; fireproof plates are spliced with one another to form a shell of the bus duct, accordingly, the attractiveness of the bus can be improved by the structure, the fire-resistant time of the bus duct can be effectively guaranteed by the aid of the fire-resistant and high-temperature-resistant performance of the fireproof plates when the bus duct runs normally under the condition of the fire hazard, and the fire-resistant performance of the bus duct can be effectively embodied.

Description

Refractory casting bus duct

Technical field

The present invention relates to low pressure power transmission and transforming equipment field, be applicable to particular design requirement, the stand-by power supply in Special use place, the supply line etc. of generating set, be specially a kind of refractory casting bus duct.

Background technology

In prior art, have in low pressure power transmission and distribution facility high temperature resistant, degree of protection is high, at breaking out of fire or the bus duct product that can continue normal service requirement when naked light burns, general employing high-strength insulation bus duct or common pouring bus groove, although high-strength insulation bus duct is connected firmly, but most high-protection level is IP54, can not waterproof, fire prevention, anticorrosion, explosion-proof.And common pouring bus groove in use, securing member cannot be adopted to connect, adopt sleeve structure can expand with heat and contract with cold because of the generation that changes of environment and temperature, easily there is slippage in joint area, and locates more difficult when mounted, not easily fixes.Mould material adopts ordinary resin, does not reach fire prevention, requirement for anticorrosion, is not suitable for the demand of the special occasions such as thermoelectricity, chemical pollution, fire-resistant main line distribution.

In prior art, common pouring bus groove upper surface easily causes ponding dust stratification, and chemicals volatilization easily occurs on surface, and cracking phenomena is particularly serious.

Summary of the invention

Technical problem to be solved by this invention is, provide a kind of reliable refractory casting bus duct, the bus duct that can be able to work under high temperature, fire condition, and fire resistance period is longer, good looking appearance, easy for installation, with low cost.

The technical scheme solving the employing of its technical problem is: design a kind of refractory casting bus duct, phase line conductive bus bar component design in agent structure becomes air type structure, insulating material employing is fire-resistant, fire resistant resin cast forms, and is poured and pastes silica gel after bus surrounding sprayed fire proofing coating; In 3 ~ 5 minutes of breaking out of fire, bus duct main body is subject to high temperature attack, and layer of silica gel is hardened, and coating starts foaming, expands, and form thermal insulation layer, conductive coefficient increases rapidly, effectively reduces the transmission of heat; Can be there is physical change (hardening) in silica gel, the time, longer hardness was higher, can form heat insulation, refuge floor at high operating temperatures, can the normal operation of available protecting bus bulk.Bus duct housing parts adopts PLASTIC LAMINATED assembled; namely this structure increases bus aesthetic measure; fire-resistant, the resistant to elevated temperatures performance of PLASTIC LAMINATED can be utilized again, the fire resistance of fire resistance period when more effective protection bus duct normally runs in case of fire, better embodiment bus duct.

Refractory casting bus duct of the present invention, is made up of phase line conductive bus bar assembly and hot-face insulation overcoat, and phase line conductive bus bar assembly is metallic conductor, is in hot-face insulation overcoat core layer; Hot-face insulation overcoat by flaggy of preventing fires, layer of silica gel, fireproof paint layer, flame-resistant resin pour mass form, flame-resistant resin pour mass is around being filled between phase line conductive bus bar assembly surrounding and phase line, cross section is rectangle, fireproof paint layer is coated in flame-resistant resin pour mass surface, layer of silica gel is pasted on fireproof paint layer, fire prevention flaggy is in outermost layer, is fixedly connected with box-shaped enclosure safeguard structure by PLASTIC LAMINATED after being combined.

Refractory casting bus duct of the present invention, high temperature resistant, degree of protection is high, in breaking out of fire or normal operation can be continued when naked light burns, can waterproof, fire prevention, anticorrosion, explosion-proof; Securing member can be adopted to connect when installing and using, can not expand with heat and contract with cold because of the generation that changes of environment and temperature, not easily there is slippage in joint area, locates easy when mounted, easily fix; Mould material adopts fire-resistant, fire resistant resin, fire prevention, requirement for anticorrosion, is applicable to the demand of the special occasions such as thermoelectricity, chemical pollution, fire-resistant main line distribution; Ponding dust stratification is not easily caused on surface, and chemicals volatilization can not occur, and cracking phenomena reduces greatly.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Below in conjunction with accompanying drawing, the present invention is further described.

In figure: 1. flaggy 2. layer of silica gel 3. of preventing fires fireproof paint layer

4. phase line conductive bus bar assembly 5. flame-resistant resin pour mass

Embodiment

As shown in the figure, refractory casting bus duct of the present invention, is made up of phase line conductive bus bar assembly and hot-face insulation overcoat, and phase line conductive bus bar assembly is metallic conductor, is in hot-face insulation overcoat core layer; Hot-face insulation overcoat is made up of flaggy of preventing fires, layer of silica gel, fireproof paint layer, flame-resistant resin pour mass, flame-resistant resin pour mass is around being filled between phase line conductive bus bar assembly surrounding and phase line, cross section is rectangle, fireproof paint layer is coated in flame-resistant resin pour mass surface, layer of silica gel is pasted on fireproof paint layer, fire prevention flaggy is in outermost layer, is fixedly connected with the outer safeguard structure of box-shaped by PLASTIC LAMINATED after being combined.

Refractory casting bus duct of the present invention, Design of Main Structure becomes air type structure, and insulating material employing is fire-resistant, fire resistant resin cast forms, and is poured and pastes silica gel after bus surrounding sprayed fire proofing coating; In 3 ~ 5 minutes of breaking out of fire, bus duct main body is subject to high temperature attack, and layer of silica gel is hardened, and coating starts foaming, expands, and form thermal insulation layer, conductive coefficient increases rapidly, effectively reduces the transmission of heat; Can be there is physical change (hardening) in silica gel, the time, longer hardness was higher, can form heat insulation, refuge floor at high operating temperatures, can the normal operation of available protecting bus bulk.Bus duct housing parts adopts PLASTIC LAMINATED assembled; namely this structure increases bus aesthetic measure; fire-resistant, the resistant to elevated temperatures performance of PLASTIC LAMINATED can be utilized again, the fire resistance of fire resistance period when more effective protection bus duct normally runs in case of fire, better embodiment bus duct.

Claims

1. a refractory casting bus duct, is characterized in that: be made up of phase line conductive bus bar assembly and hot-face insulation overcoat, and phase line conductive bus bar assembly is metallic conductor, is in hot-face insulation overcoat core layer; Hot-face insulation overcoat is made up of flaggy of preventing fires, layer of silica gel, fireproof paint layer, flame-resistant resin pour mass, flame-resistant resin pour mass is around being filled between phase line conductive bus bar assembly surrounding and phase line, cross section is rectangle, fireproof paint layer is coated in flame-resistant resin pour mass surface, layer of silica gel is pasted on fireproof paint layer, fire prevention flaggy is in outermost layer, is fixedly connected with the outer safeguard structure of box-shaped by PLASTIC LAMINATED after being combined.