Filter system for flue gas sampling gun

A filter system and sampling gun technology, which is applied in the direction of dispersed particle filtration, sampling device, and dispersed particle separation, etc., can solve the problems of sampling channel blockage, affecting the service life of the sampling gun for flue gas composition analysis, etc., to prolong the service life and prevent dust into the sample gun, avoiding the effect of washout

Active Publication Date: 2013-10-02
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing flue gas sampling gun directly inhales the flue gas, and the dust particles in the flue gas adhere to the wall of the sampling gun tube and the absorption bottle to cause the blockage of the sampling passage, which affects the analysis of the flue gas components and the use of the sampling gun Life problem, and then provide a filter system for flue gas sampling gun

Method used

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  • Filter system for flue gas sampling gun
  • Filter system for flue gas sampling gun

Examples

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specific Embodiment approach 1

[0008] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, a filter system for a flue gas sampling gun in this embodiment includes a filter cartridge 5-1 and a protective net 5-2, the filter cartridge 5-1 is a filter cartridge with one end open and the other end closed, The shape of the closed end of the filter cartridge 5-1 is bullet-shaped, and the filter cartridge 5-1 is a wood pulp fiber paper filter cartridge, and the open end of the filter cartridge 5-1 is used to be installed on the smoke inlet end of the gun barrel 1 , the shape of the protective net 5-2 is the same as that of the filter cartridge 5-1, and the protective net 5-2 is set on the filter cartridge 1.

[0009] The filtration particle diameter of the filter cartridge of this embodiment is the same as or smaller than the particle diameter (0.05-600 μm) of dust. This embodiment is used together with the protective cover (flange 4-1, protective ring 4-2 and multiple pilla...

specific Embodiment approach 2

[0010] Specific implementation mode two: combination figure 1 and figure 2 To describe this embodiment, the protection net 5-2 in this embodiment is a metal protection net. With such setting, the strength of the protective net is high, and the protective effect on the filter cartridge is good. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0011] Specific implementation mode three: combination figure 1 and figure 2 To illustrate this embodiment, the protective net 5-2 in this embodiment is a stainless steel round hole or square hole protective net. With such setting, the protection effect of the protective net on the filter cartridge is good. Others are the same as in the first or second embodiment.

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Abstract

A filter system for a flue gas sampling gun relates to a filter system and solves the problems that a conventional flue gas sampling gun intakes flue gas directly, dust particles in the flue gas are adhered to the wall of a sampling gun barrel and an absorption bottle, thereby causing sampling channel blockage which influences analysis to flue gas components and the service life of the sampling gun. The filter system for the flue gas sampling gun comprises a filter cylinder and a protective screening, wherein one end of the filter cylinder is opened and the other end of the filter cylinder is sealed, the sealed end of the filter cylinder takes the shape of a warhead, the filter cylinder is a filter cylinder made of wood chip paper, the opened end of the filter cylinder is mounted at the flue gas entry end of the gun barrel, the protective screening and the filter cylinder are the same in shape, and the protective screening is sleeved with the filter cylinder. According to the invention, dust is effectively prevented from entering into the sampling gun, blockage and erosion of dust to the sampling gun can be avoided, and the service life of the sampling gun is prolonged greatly. The filter system provided by the invention is used for sampling and filtering the flue gas of a chimney flue at the outlet of a fuel electric plant denitration system.

Description

technical field [0001] The invention relates to a filter system, in particular to a filter system for a flue gas sampling gun at the outlet of a denitrification system in a thermal power plant. Background technique [0002] In order to understand the flue gas composition of the outlet flue of the denitrification system of the thermal power plant, so as to give the best ratio of denitrification agent and improve the denitrification efficiency (including the change of flue gas composition), it is necessary to test the performance of the denitrification equipment (including the denitrification equipment Sampling of flue gas during performance acceptance and performance test before and after equipment transformation), and chemical analysis of the samples. When sampling, use a flue gas component sampling gun. The barrel of the sampling gun is made of stainless steel pipe. Insert the tip of the gun into the flue, and suck the flue gas into the absorption bottle through the samplin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/24G01N1/24
Inventor 殷晓红王育张金丽佟瑶冯明华张亮
Owner STATE GRID CORP OF CHINA
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