An on-off type burst early warning detection cable and detector

Abstract

The invention discloses an on-off type bursting early warning detection cable and a detector. The on-off type bursting early warning detection cable is laid on the outer wall face of a protected pressure container or pressure pipeline, and is formed in a manner that multiple gaps are formed in metal or non-metal conductive wires serving gas detection cable mother materials in the longitudinal direction, the pitch between adjacent gaps is L, and the cross section area of the gaps of the bursting early warning detection cable with the gaps is smaller than that of the portion without the gaps. The detector comprises the on-off type bursting early warning detection cable and a monitoring box. The on-off type bursting early warning detection cable and the detector have the beneficial effects that warning sensitivity is high, selected material making is easy, the application range is wide, the environment temperature rises, and warning sensitivity reduction caused by long-term work is little.

Description

technical field [0001] The invention belongs to the technical field of fire safety, and in particular relates to an on-off burst early warning detection cable and a detector. Background technique [0002] In the field of fire protection, the burst early warning detection detector is an important early warning device used to prevent pressure vessels or pressure pipelines from bursting. It consists of two parts, such as figure 1 As shown, it consists of a burst early warning detection cable 2 (also known as a linear deformation sensing element or a deformation detection cable) and a monitoring box 1 electrically connected to both ends of the burst early warning detection cable 2 . [0003] Usually the burst early warning detection cable 2 is fixed on the outer wall of the pressure vessel or pressure pipe, and the small tensile and plastic deformation that occurs on the pressure vessel or pressure pipe will be transmitted to the burst early warning detection cable 2 in time, so...

AI Technical Summary

Problems solved by technology

However, this kind of burst early warning detection cable and detector still has the disadvantages of low alarm sensitivity, difficult selection of manufacturing materials, so the scope of application is small, the use of ambient temperature increases, the alarm sensitivity decreases, and the long-term work alarm sensitivity decreases (that is, low stability).

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