Method and structure of aluminum bus bar passing through firewall in aluminum electrolysis workshop

Abstract

The invention discloses a method and a structure for the aluminum bus bar of an aluminum electrolysis workshop to pass through a firewall. In the invention, an epoxy resin glass cloth laminated board 4 is used to seal the inner and outer sides of the firewall 1, and then a fireproof board 5 is used to pass through the wire hole for two weeks. Then seal the wire hole 2 with a wall, fill the inside with sand, and then cover the reinforced concrete movable cover 8. The invention has good fire prevention and insulation properties in high-temperature and high-humidity environments, and the effect of double-layer fire prevention and sealing is better than that of single-layer fire prevention and sealing. The present invention adopts the enclosure wall and the cover plate structure to facilitate later maintenance by removing the cover, and at the same time play the role of sheltering from the rain and making it safe for people to pass through here.

Description

technical field [0001] The invention relates to a method and a structure for an aluminum busbar passing through a firewall in an aluminum electrolysis workshop, and belongs to the technical field of busbar passing through a wall. Background technique [0002] The aluminum electrolysis workshop relies on multiple supporting rectifier units to deliver strong DC current to the workshop, and the aluminum busbars made of high-conductivity aluminum materials are generally used to transmit electric energy. According to the principle of nearby electric energy transmission, the rectifier unit is generally installed on the gable side of the electrolysis workshop, and the aluminum busbar enters the interior of the workshop from the gable side. According to the requirements of the "Code for Fire Protection of Building Design", the fire hazards of production are classified as Class C and D, and the fire distance between the two workshops with the fire resistance class of Class II must re...

AI Technical Summary

Problems solved by technology

However, due to the limitations of the current land use range and various other reasons, it is difficult to meet the requirement of a fire separation distance of 10 meters. Therefore, when the fire separation distance cannot meet the requirements of the fire protection code, it is necessary to consider designing two buildings as one building Two independent fire compartments, separated by a firewall in the middle, and the proportion of the production part with greater fire risk to the area of ​​the fire compartment must be less than 5%, so as to determine the fire risk of the whole building according to the part with less fire risk Classification, that is, the construction area of ​​the rectifier unit with a fire hazard of Class C must be less than 5% of the area of ​​the entire building in order to classify the fire hazard classification of the entire building according to the aluminum electrolysis workshop with a lower fire hazard

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