An internal combustion arc pressure relief collection device for prefabricated substations

Abstract

The present invention discloses an internal combustion arc pressure relief collecting device for a prefabricated substation. The prefabricated substation at least comprises a prefabricated cabin and at least one air inflation switch cabinet installed in the prefabricated cabin, the internal combustion arc pressure relief collecting device comprises a pressure relief mesh plate disposed on the topof the at least one air inflation switch cabinet, a top pressure relief channel covering the pressure relief mesh plate, a side lead-out pressure relief channel arranged at the outlet port of the toppressure relief channel, and an outdoor pressure relief channel arranged at the top portion of the cabin wall of one side of the prefabricated cabin. The inlet end of the outdoor pressure relief channel is connected with the outlet end of the side lead-out pressure relief channel. On the premise without change of the gas tank and the cabinet top structure of the at least one air inflation switch cabinet, the cabinet top structure is optimized and designed to achieve a common pressure relief channel to be connected with the cabin wall of the prefabricated cabin to discharge the gas out of the prefabricated cabin.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to an internal combustion arc pressure relief collection device used in a prefabricated substation. Background technique [0002] Prefabricated substation (hereinafter referred to as: prefabricated cabin) is a kind of factory prefabricated indoor and outdoor compact power distribution equipment equipped with high voltage switchgear, distribution transformer and low voltage power distribution device and arranged according to a certain wiring scheme. The functions of step-down and low-voltage power distribution are organically combined and installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, heat-insulating, fully enclosed, and movable steel structure box. It has small size, Small footprint, low cost, reliable and other advantages. It is especially suitable for urban network construction and transformation, and it is a brand-ne...

AI Technical Summary

Problems solved by technology

According to the standard GB 3906-2006 equipment internal arcing requirements, the distance between the top of the inflatable switchgear cabinet and the prefabricated cabin roof is required to be 800 mm, but at present the minimum space is only 300 mm, which will definitely cause certain damage to the top of the prefabricated cabin, thus It will cause certain damage to the top structure of the prefabricated cabin and bring hidden dangers to the personal safety of the operators.

In addition, the gas generated by the arc may contain some toxic gases. When the operator opens the prefabricated cabin, the toxic gas will cause great harm to the operator and seriously affect the personal safety of the operator. The emission of gas has brought great disadvantages

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