Make-and-break type burst early warning detection cable and detector

Abstract

The invention discloses a make-and-break type burst early warning detection cable and a detector. The make-and-break type burst early warning detection cable is produced by forming multiple eccentricnotches in a metal or nonmetal electrically-conductive wire as a detection cable base material in the length direction of the detection cable base material. The make-and-break type burst early warningdetection cable is divided into multiple detection cable bodies with the segmental length being L. The center of each detection cable body is provided with the corresponding one or more eccentric notches so that the cross-sectional area of each eccentric notch in the make-and-break type burst early warning detection cable can be less than the original cross-sectional area of the portion, at the corresponding eccentric notch detection cable before the corresponding eccentric notch is formed, of base material. The detector comprises the make-and-break type burst early warning detection cable and a monitoring box. The make-and-break type burst early warning detection cable and the detector have the advantages that the warning sensitivity is higher; materials are easy to select for production; the application scope is large; and the problem that the sensitivity is lowered due to rise of the environmental temperature and long-time work is fewer.

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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