CN113313902A

CN113313902A - Five-parameter data fusion type fire detector structure

Info

Publication number: CN113313902A
Application number: CN202110365949.1A
Authority: CN
Inventors: 韩锋; 张义勇; 李成; 董辉; 王博强
Original assignee: 703th Research Institute of CSIC
Current assignee: 703th Research Institute of CSIC
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-08-27

Abstract

The invention aims to provide a five-parameter data fusion type fire detector structure which comprises a shell, a base and a filter, wherein the shell is arranged on the base, the base is arranged in the shell, the filter is arranged on the base, a temperature and combustible gas detection cavity and a smoke concentration detection cavity are arranged on the base, a cylinder is fixed on the base, the cylinder penetrates through a round hole in the middle of the filter and extends out of the filter, the cylinder forms a flame and heat source detection cavity, and a perspective glass window is arranged at the end part of the cylinder. The invention realizes the combination of five detection modes of flame detection, heat source detection, temperature detection, combustible gas detection and smoke concentration detection in one structure, and all the detection functions can be used simultaneously or independently or combined in any mode; the inside maze structure that adopts of detector makes the air sample flow according to the design orbit, and the testing result does not mutually interfere. The filter can replace the filter element by self-rotating, and each filter can use three replacing periods.

Description

Five-parameter data fusion type fire detector structure

Technical Field

The invention relates to a fire fighting device, in particular to a fire detection device.

Background

Common fire detectors are broadly classified into the following types according to their detection functions: temperature-sensitive detectors, photosensitive detectors, smoke detectors, combustible gas detectors, and the like, generally detect a single fire element as a research object; there are also some functional composite fire detectors, such as composite photosensitive smoke detector, composite photosensitive temperature detector, composite smoke detector. In actual use, several fire detectors are often needed to be configured at the same time to improve monitoring accuracy, so that the equipment occupies a large space, the construction is complicated, a matched fire monitoring information processing system is complex, the engineering cost is high, and the economic benefit is low.

Disclosure of Invention

The invention aims to provide a five-parameter data fusion type fire detector structure which meets the design requirements of n-type explosion-proof electrical equipment and meets the protection level requirements of IP 54.

The purpose of the invention is realized as follows:

the invention relates to a five-parameter data fusion type fire detector structure, which is characterized in that: the device comprises a shell, a base and a filter, wherein the shell is arranged on the base, the base is arranged in the shell, the filter is arranged on the base, a temperature and combustible gas detection cavity and a smoke concentration detection cavity are formed in the base, a cylinder is fixed on the base, the cylinder penetrates through a round hole in the middle of the filter and extends out of the round hole, the cylinder forms a flame and heat source detection cavity, and a perspective glass window is arranged at the end part of the cylinder.

The present invention may further comprise:

1. the outer end of the base is provided with a positioning guide key, the inner wall of the shell is provided with a positioning guide groove, and the base is arranged in the shell and is scratched into the shell along the positioning guide groove through the positioning guide key when being arranged in the shell.

2. The filter includes 6 independent filter chambers, sets up independent filter core in every independent filter chamber, and the sample connection in temperature and combustible gas detection chamber, the sample connection in smog concentration detection chamber correspond the independent filter chamber of two diagonal positions of filter respectively, and 6 independent filter chambers are rotatable setting.

3. The inside fan of breathing in that sets up of casing, the independent filter chamber that the sample connection corresponds that the sample connection that the air sample passes through temperature and combustible gas detection chamber, smog concentration detection chamber respectively gets into temperature and combustible gas detection chamber, smog concentration detection chamber, and casing side circumferencial direction sets up the exhaust hole.

The invention has the advantages that: the design requirements of the n-type explosion-proof electrical equipment are met; the protection level requirement of IP54 is met; five detection modes of flame detection, heat source detection, temperature detection, combustible gas detection and smoke concentration detection are integrated in one structure, and all detection functions can be used simultaneously or independently or combined in any mode; the inside maze structure that adopts of detector makes the air sample flow according to the design orbit, and the testing result does not mutually interfere. The filter can replace the filter element by self-rotating, and each filter can use three replacing periods.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a graph of an air sample flow trace;

fig. 4 is a schematic view of a vent.

Detailed Description

The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:

with reference to fig. 1-4, the five-parameter data fusion type fire detector structure meets the design requirements of n-type explosion-proof electrical equipment, and does not generate sparks or dangerous temperatures for igniting explosive mixtures under normal operating conditions.

The flame and heat source detection unit is arranged in a cylinder 7 at the front end of the detector, and a perspective glass window is arranged at the front end of the cylinder 7; the cylinder 7 passes through a round hole in the middle of the filter 5 to extend out, is connected and fixed on the base 4 by screws, and can be independently disassembled and assembled so as to be convenient for maintenance and replacement. The temperature detection and combustible gas detection unit is arranged in a rectangular closed chamber 8; the smoke concentration detection unit is arranged in a closed laser detection cavity 9. Temperature and combustible gas detect chamber 8, smog concentration detection chamber 9 and base 4 structure as an organic whole, have the location guide key on the base 4, can make base 4 scratch into its bottom along the interior positioning guide way of casing 3.

Adopt a labyrinth structure, at detector internally mounted fan 15 that breathes in, can make the air sample respectively through two independent filter chambers of filter 5, get into temperature and combustible gas respectively and detect chamber 8 and smog concentration detection chamber 9, realize detecting temperature, combustible gas simultaneously and detect, smog concentration, the result is mutual noninterference. The detected sample finally enters the chamber where the suction fan 15 is located and is discharged from 24 air holes 16 in the circumferential direction of the side face of the shell.

The filter 5 is equally divided into 6 independent filter cavities in the circumferential direction, each filter cavity is internally provided with an independent filter element, two air sampling ports respectively correspond to two diagonal filter cavities, the filter element replacement function can be realized through rotating positions, and each filter 5 can use three replacement cycles in the structure.

The inner side of the shell 3 is provided with a guiding positioning groove, all components are sequentially arranged in the shell 3, a sealing gasket is clamped at the joint, finally, an outer nut 6 is screwed to compress and seal, the bottom of the shell is connected with the cover plate 2 through screws, and a sealing ring at the joint is compressed to meet the protection requirement of IP 54.

There are 4 installation feet base 1 bottom, available bolt fastening in mounted position, and the side has 4 cable inlet, and base 1 adopts bolted connection with casing 3, compresses tightly the junction sealing washer, satisfies IP54 protection requirement.

Claims

1. A five-parameter data fusion type fire detector structure is characterized in that: the device comprises a shell, a base and a filter, wherein the shell is arranged on the base, the base is arranged in the shell, the filter is arranged on the base, a temperature and combustible gas detection cavity and a smoke concentration detection cavity are formed in the base, a cylinder is fixed on the base, the cylinder penetrates through a round hole in the middle of the filter and extends out of the round hole, the cylinder forms a flame and heat source detection cavity, and a perspective glass window is arranged at the end part of the cylinder.

2. A fire detector structure of five-parameter data fusion type according to claim 1, wherein: the outer end of the base is provided with a positioning guide key, the inner wall of the shell is provided with a positioning guide groove, and the base is arranged in the shell and is scratched into the shell along the positioning guide groove through the positioning guide key when being arranged in the shell.

3. A fire detector structure of five-parameter data fusion type according to claim 1, wherein: the filter includes 6 independent filter chambers, sets up independent filter core in every independent filter chamber, and the sample connection in temperature and combustible gas detection chamber, the sample connection in smog concentration detection chamber correspond the independent filter chamber of two diagonal positions of filter respectively, and 6 independent filter chambers are rotatable setting.

4. A fire detector structure of five-parameter data fusion type according to claim 3, characterized in that: the inside fan of breathing in that sets up of casing, the independent filter chamber that the sample connection corresponds that the sample connection that the air sample passes through temperature and combustible gas detection chamber, smog concentration detection chamber respectively gets into temperature and combustible gas detection chamber, smog concentration detection chamber, and casing side circumferencial direction sets up the exhaust hole.