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Explosion-proof dilution sampling probe

A technology for sampling probe and diluting gas, applied in sampling, sampling device, measuring device, etc., can solve the problem of low applicability, and achieve the effect of improving the scope of application, increasing friction, and preventing easy escape

Pending Publication Date: 2020-04-21
BAY ENVIRONMENTAL TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The critical small hole in the existing dilution sampling probe is also called the sonic small hole, and most of them are integrated with the dilution sampling probe, which can only detect gaseous pollutants with a certain concentration gradient, and the applicability is low

Method used

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Embodiment Construction

[0048] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0049] refer to figure 1 , figure 2 and image 3 , is an explosion-proof dilution sampling probe disclosed in the present invention, comprising a probe housing 1, a vacuum generator 2 arranged in the probe housing 1, a sonic hole 3 communicated with the vacuum generator 2, and a detachable sonic hole 3 A fixing device 4 fixedly connected to the vacuum generator 2 and a sampling probe 5 fixed on the outer wall of the probe housing 1 and communicated with the sonic hole 3 .

[0050] The sonic small hole 3 is detachably connected to the vacuum generator 2 through the fixing device 4, so that the staff can change the dilution ratio by replacing the sonic small hole 3 with different apertures as required, so as to detect different concentrations of gaseous pollutants. Improve the scope of application of the diluted sampling probe to meet different environmenta...

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Abstract

The invention relates to an explosion-proof dilution sampling probe. The explosion-proof dilution sampling probe comprises a probe shell, a vacuum generator arranged in the probe shell, a sound speedsmall hole communicated with the vacuum generator, a fixing device and a sampling probe tube fixed on the outer wall of the probe shell and communicated with the sound speed small hole. The vacuum generator comprises a mounting plate and an air distribution disc integrally connected to one side of the mounting plate; the sound speed small hole comprises a flow stabilizing pipe and an air guide pipe integrally connected with the flow stabilizing pipe, wherein the diameter of the air guide pipe is smaller than that of the flow stabilizing pipe; the fixing device comprises a base fixedly connected to the mounting plate and communicated with the vacuum generator and a fastener that is used for fixing the air guide pipe to the base when the air guide pipe is inserted into the base. The explosion-proof dilution sampling probe has the advantages that workers can conveniently replace sound velocity small holes with different hole diameters so as to meet different environment requirements; meanwhile, the probe has an explosion-proof function and is suitable for first-area and second-area dangerous places and indoor and outdoor installation of explosive gas mixtures of IIA-IIC levels and T1-T3 groups.

Description

technical field [0001] The invention relates to a sampling probe, in particular to an explosion-proof dilution sampling probe. Background technique [0002] There are two sampling methods for the pollutant online detection system, namely direct extraction method and dilution extraction method. The idea of ​​the direct extraction method is to heat the extraction pipeline above the temperature of the sample gas to solve the problem of water vapor condensation on the sampling transmission pipeline. It is subdivided into dry method and wet method. The dry method is to remove the moisture in the sample gas through a rapid cooling and dehydration process before the sample gas reaches the instrument, and at the same time lower the temperature of the sample gas to room temperature for the instrument to measure. There is a dehydration process, and the substances in the sample gas with low concentrations and easily soluble in water, such as hydrogen chloride, ammonia, and hydrogen su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/24
CPCG01N1/2258G01N2001/2264
Inventor 吕琼魏巍
Owner BAY ENVIRONMENTAL TECH BEIJING
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