Cable joint explosion-proof box of novel fire extinguishing medium

Abstract

The invention discloses a cable joint explosion-proof box of a novel fire extinguishing medium. A housing of the explosion-proof box is internally provided with a cooling and fire extinguishing devicecapable of being automatically triggered; and when the temperature of a cable joint is too high, a fire occurs or deflagration occurs, the cooling and fire extinguishing device automatically sprays out the fire extinguishing medium for cooling and fire extinguishing, so that dangers and greater economic losses are prevented in time. According to the technical scheme, the cable joint explosion-proof box comprises the housing, the cooling and fire extinguishing device and a triggering device, the middle of the housing protrudes, a cavity is formed in the housing, and first openings allowing cables to penetrate through are reserved in the two ends of the housing; the cooling and fire extinguishing device comprises a fire extinguishing medium, a container and an inert gas bottle, wherein thefire extinguishing medium is liquid at normal temperature and vaporized quickly after being heated; the container is provided with a nozzle capable of being opened and closed; high-pressure inert gasis stored in the inert gas bottle, the inert gas bottle is connected with the container through a pipeline, and a valve is arranged between the inert gas bottle and the container; and the trigger device comprises a detection mechanism and a control mechanism, and the control mechanism is simultaneously coupled to the detection mechanism and the valve.

Description

technical field [0001] The invention relates to the field of cable related equipment, in particular to an explosion-proof box for a cable joint of 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 joint of the cable is the weakest part of the entire cable line. The wire at the connector has a cross section, and the wire needs to be exposed and connected with the corresponding connector. Therefore, the cable connector may be short-circuited due to poor contact, moisture, external force damage and other factors, resulting in short circuit, excessive resistance, and eddy current. The problem of fire, and even deflagration in severe cases. [0003] Therefore, how to prevent the temperature of the cable joint from being too high to catch fire, a...

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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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