Explosion-proof box for cable joints with new fire extinguishing medium

Abstract

The invention discloses a cable joint explosion-proof box of a new type of fire extinguishing medium. The shell of the explosion-proof box is provided with a temperature-lowering fire-extinguishing device that can be automatically triggered. The fire extinguishing medium is used to cool down and extinguish the fire, so as to prevent the occurrence of danger and greater economic losses in time. The key points of the technical solution are: including the housing, the cooling and fire extinguishing device and the triggering device, the middle of the housing is raised, and a chamber is formed inside, and the two ends of the housing are left with first openings for cables to pass through; the cooling and fire extinguishing device includes a fire extinguishing medium , container and inert gas bottle, the fire extinguishing medium is liquid at normal temperature, and it vaporizes rapidly when heated; the container is provided with a spout that can be opened and closed, and there is high-pressure inert gas in the inert gas bottle, and the inert gas bottle is connected to the container through a pipeline, and the inert gas A valve is provided between the bottle and the container; the trigger device includes a detection mechanism and a control mechanism, and the control mechanism is coupled to the detection mechanism and the valve at the same time.

Description

technical field [0001] The invention relates to the field of cable-related equipment, in particular to a cable joint explosion-proof box for a novel fire extinguishing medium. Background technique [0002] The transmission of power and signals is achieved through cables, and long-distance power transmission often requires multiple cables to be twisted and connected to achieve a long enough transmission distance. However, the cable joint is the weakest part of the entire cable line. There is a section of the wire at the joint, and the wire needs to be exposed and connected with the corresponding connector. Therefore, the cable joint may be short-circuited, over-resistance, and eddy current generated due to factors such as poor contact, moisture, and external force damage. The problem of fire, even deflagration occurs in severe cases. [0003] Therefore, how to avoid excessive temperature and fire at the cable joint, and to cool down and extinguish fire in time after the temp...

AI Technical Summary

Problems solved by technology

[0002] The transmission of power and signals is achieved through cables, and long-distance power transmission often requires multiple cables to be twisted and connected to achieve a long enough transmission distance. However, the cable joint is the weakest part of the entire cable line. There is a section of the wire at the joint, and the wire needs to be exposed and connected with the corresponding connector. Therefore, the cable joint may be short-circuited, over-resistance, and eddy current generated due to factors such as poor contact, moisture, and external force damage. The problem of fire, even deflagration in severe cases

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