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Linetype temperature-sensing fire disaster detector

A fire detector, the first-line technology, applied in the direction of electrical fire alarms, instruments, alarms, etc., can solve the problem of abnormal alarm, reduced alarm reliability of linear temperature-sensing fire detectors, and missed fire alarms and other problems to achieve the effect of improving the reliability of the alarm

Inactive Publication Date: 2009-06-17
陕西微典消防技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are following problems in this prior art linear temperature sensing fire detector: when it is installed on the site of use, if the linear temperature sensing element is partially or completely damaged due to some mechanical or human factors If the detection conductor is pulled off, although some linear temperature sensing elements connected to the conversion box 5 can also try to make it continue to have an alarm function, the disconnected part cannot normally alarm anyway.
In this case, once a fire occurs at the location where the disconnected part is located, it will cause a problem of missed fire alarms, resulting in a decrease in the alarm reliability of the linear temperature-sensitive fire detectors.

Method used

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  • Linetype temperature-sensing fire disaster detector
  • Linetype temperature-sensing fire disaster detector
  • Linetype temperature-sensing fire disaster detector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 2 , image 3 As shown, the linear temperature-sensitive fire detector provided in this embodiment includes a linear temperature sensing element and a main converter box A and an auxiliary converter box B respectively connected to two ends of the linear temperature sensing element; wherein the linear temperature sensing element is various At least one of conventional parallel thermal sensor types, such as continuous distribution NTC parallel type, discrete NTC resistance element / temperature sensitive electronic switch / temperature sensitive mechanical switch parallel type, intelligent coded temperature detection element parallel temperature measurement type, continuous distribution thermoelectric Dual type and electromagnetic wave reflection positioning temperature measurement type, etc.; the main conversion box A is used for alarm data collection and fire alarm of a certain detection section on all linear temperature sensing elements connected to it under...

Embodiment 2

[0028] This embodiment is an improvement on the basis of Embodiment 1, as Figure 4 As shown, in the linear temperature-sensitive fire detector provided in this embodiment, the auxiliary conversion box B connected to one end of the linear temperature sensing element is moved to a position adjacent to the main conversion box A at the other end, and the auxiliary conversion box B It is still electrically connected to the original end of the linear temperature sensing element through the signal line. Its working principle is the same as that of Embodiment 1. It is also possible to make the auxiliary converter box B and the main converter box A as a whole. It is also possible to combine the auxiliary conversion box B with the main conversion box A, use the same two detection circuits to detect simultaneously or use the same detection circuit to time-sharing and periodically alternately detect the fire information of the two disconnected wire-type temperature sensing elements . ...

Embodiment 3

[0030] Such as Figure 5 As shown, the linear temperature-sensitive fire detector provided in this embodiment includes two first and second linear temperature sensing elements C and D arranged in parallel, and a main conversion box E connected to one end of the first linear temperature sensing element C And the auxiliary conversion box F connected to the other end of the second linear temperature sensing element D; wherein the first and second linear temperature sensing elements C and D have the same length, and can be combined with each other or separated by a certain distance, such as 0.6 meters; The main conversion box E is used for alarm data collection and fire alarm of a certain detection section on all the first linear temperature sensing elements C connected to it, and real-time monitoring of short circuit and open circuit faults of the first linear temperature sensing element C; The auxiliary conversion box F is used for alarm data collection and fire alarm of a certa...

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Abstract

The invention comprises: a line type temperature sensor, and a main switch box and an assistant switch box both respectively connected to each end of the sensor; or two parallel-set line type temperature sensors, and a main switch box connected to one end of one senor and an assistant switch connected to the other end of the other sensor. The invention is used to make fire alarm.

Description

technical field [0001] The invention relates to fire fighting equipment, in particular to a linear temperature-sensitive fire detector. Background technique [0002] The linear heat-sensitive fire detector is a kind of detector which is widely used. figure 1 It is a structural schematic diagram of a linear temperature-sensitive fire detector in the prior art. Such as figure 1 As shown, this prior art linear temperature-sensitive fire detector usually consists of three parts: a linear temperature sensing element, a conversion box 5 and a terminal box 6; wherein the linear temperature sensing element includes two parallel detection conductors 1 , 2 and the parallel thermosensitive layer 3, 4 arranged in parallel between the two detection conductors 1, 2; the terminal box 6 can sometimes be omitted, and the terminal box 6 can also be connected through the return signal line arranged in parallel with the linear temperature sensing element. The circuit in the box 6 is set in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B17/06G08B29/00
Inventor 侯珏
Owner 陕西微典消防技术有限公司
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