High-temperature contacting detector installation hung at normal-temperature and temperature sensing hanger

Abstract

A method for setting high temperature contact detector by utilizing temperature sensing unit in hang type includes setting linear temperature detector above cable crane span structure by multiple temperature sensing hang unit, setting temperature sensing element in said unit in hang type and separating said detector from said unit in hang type by action of said element when cable temperature on said structure is at 40-120 deg.c in order to drop down said detector freely on surface of detected cable for carrying out contact detection of cable temperature.

Description

technical field [0001] The invention relates to a method for laying a suspended high-temperature contact detector at room temperature and a temperature-sensing suspension device. The method uses a suspension device that can change the position of the detector according to the change of the ambient temperature where the detector is located to fix the temperature-sensitive detector, which greatly improves the line efficiency. Sensitivity of the type heat detector, while overcoming the problems caused by contact-mounted linear heat detectors. Background technique [0002] In the prior art, there are two ways to install linear temperature detectors for cable trays or cable supports: one is suspended laying, the other is contact laying, and the attached figure 1 Shown is a schematic diagram of the traditional suspended laying position of the temperature detector. In the suspended laying, the linear temperature detector 4 is laid directly above the cable tray 5, and a suspended cl...

AI Technical Summary

Problems solved by technology

In contact laying, the linear temperature detector is fixed on the cable bridge with ordinary clamps, and the linear temperature detector and the cable are fixed in contact. The advantage of the first laying method is that it can be conveniently placed on the cable bridge. There is no need to dismantle the linear heat detector; the disadvantage is that this method can only detect and alarm the external fire of the cable on the cable tray, but cannot detect the internal fire of the cable in time

The advantage of the second laying method is that it can accurately detect and alarm the external fire or internal fire of the cable on the cable tray, and its sensitivity is very high; its disadvantage is that it is necessary to remove the line type when replacing or adding cables on the cable tray. Temperature detectors are not conducive to the maintenance and transformation of cables by construction personnel

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