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An anti-clogging casing applied to a gas detector

A detector and anti-blocking technology, applied in the field of detectors, can solve the problems of non-detection of detectors, rotation of screw plugs, blockage of air intake holes, etc., to achieve the effect of ensuring tightness

Active Publication Date: 2016-08-17
鄂尔多斯市巨鼎天然气有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the current technology, to provide an anti-clogging housing applied to gas detectors, to solve the problem of the existing ceramic gas detectors, where the threaded plug is vibrated and the phenomenon of self-rotation occurs, and it is easy to displace the air inlet. Blockage, causing defects not detected by detectors

Method used

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  • An anti-clogging casing applied to a gas detector
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  • An anti-clogging casing applied to a gas detector

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Embodiment Construction

[0020] Below in conjunction with embodiment the present invention is described in further detail, but structure of the present invention is not limited to following embodiment:

[0021] 【Example】

[0022] Such as Figure 1-4As shown, an anti-clogging housing applied to a gas detector includes a sealed housing 1, including a sealed housing 1, the sealed housing 1 is made of transparent ceramics, and the sealed housing 1 A ventilation port 101 is arranged on the top, and a valve 4 is arranged at the ventilation port 101. The valve 4 is also made of ceramics. The valve 4 is cylindrical. The valve 4 is driven to rotate by the motor 2 inside the sealed housing 1, and at least one air inlet groove 401 is arranged on the side wall of the valve 4, and the extending direction of the air inlet groove 401 is consistent with the axial direction of the valve 4, and the air inlet groove 401 extends from one end of the valve 4 away from the motor 2 to the other end, the length of the air i...

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Abstract

The invention discloses an anti-blockage shell applied to a gas detector. The anti-blockage shell comprises a sealing shell body made of transparent ceramics. The sealing shell body is provided with a ventilation port. A valve is arranged at the ventilation port. A protective cover is arranged on the inner wall of the sealing shell body. A spring is arranged between the tail of a motor and the protective cover. A rubber pad is fixed to the end, close to the outer portion of the sealing shell body (1), of the ventilation port. The anti-blockage shell further comprises a blocking device. The blocking device comprises a baffle, a connecting rod and an air cylinder. The anti-blockage shell has the advantages that the baffle is arranged to prevent the valve from vibrating, rotating and automatically blocking the ventilation port; the end of the valve is in a circular truncated cone shape, so that movement of the baffle is facilitated; even if the valve does not retreat in place, the baffle can still move.

Description

technical field [0001] The invention belongs to the field of detectors, in particular to an anti-clogging shell applied to gas detectors. Background technique [0002] Gas detectors, combustible gas detectors, are detectors that respond to single or multiple combustible gas concentrations, and are generally divided into catalytic combustible gas detectors and semiconductor combustible gas detectors. [0003] The catalytic combustible gas detector uses the resistance change of the refractory metal platinum wire to measure the concentration of the combustible gas. When the combustible gas enters the detector, it will cause an oxidation reaction (flameless combustion) on the surface of the platinum wire, and the heat generated will make it The temperature of the platinum wire rises, and the resistivity of the platinum wire changes; the semiconductor combustible gas detector uses a gas-sensitive semiconductor element with high sensitivity. Corresponding relationship with combus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D11/24
Inventor 吕忠贵
Owner 鄂尔多斯市巨鼎天然气有限责任公司