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Method for sampling special organic gas in flue gas

A technology of organic gas and flue gas, which is applied in the direction of sampling devices, etc., can solve the problems of inconvenient operation, heavy and portable equipment, inconvenience, etc., and achieve the effect of easy cleaning, convenient on-site connection, and prevention of adsorption or contamination loss

Active Publication Date: 2013-03-06
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation of the above existing sampling system, a large amount of flue gas condensate is directly formed at the adsorption and trapping site or its upstream, and drips through the adsorption resin, which is unfavorable to the adsorption and sampling process of dioxins; in addition, for For flue gas with low temperature, the heating method of traditional sampling gun system adopts electric heating with heat preservation, and the equipment is bulky and inconvenient to carry; while for high-temperature flue gas sampling, the traditional sampling gun system needs to be replaced with a cooling method with cooling water. The basic conditions of the site are relatively high, and the operation is very inconvenient

Method used

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  • Method for sampling special organic gas in flue gas
  • Method for sampling special organic gas in flue gas

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A method for sampling special organic gases in flue gas, which uses a device such as figure 1 As shown, the flue gas enters from the inlet of the sampling gun 1 through the inner tube of the sleeve. After passing through the jacketed quartz glass sampling gun, its temperature reaches the sampling requirements for dioxins. The flue gas passes through the filter cartridge 2 to trap particulate matter, and then After being condensed by the condensing device, the condensate directly falls into the cooling and liquid removal bottle 4, and a chilled water pump 3 is arranged in front of the cooling and liquid removal bottle 4, and the smoke is collected through the dioxin adsorption and trapping bottle 5 (containing an adsorbent such as XAD resin). After the dioxins in the gas are further collected by washing the bottle 9, the gas passes through the drier 6, the gas flow meter, the thermometer 7, and the sampling pump 8 to complete the whole sampling process.

[0028] Consider...

Embodiment 2

[0030] A method for sampling special organic gases in flue gas, which uses a device such as figure 1 As shown, the flue gas enters from the inlet of the sampling gun 1 through the inner tube of the sleeve. After passing through the jacketed quartz glass sampling gun, its temperature reaches the sampling requirements for dioxins. The flue gas passes through the filter cartridge 2 to trap particulate matter, and then After being condensed by the condensing device, the condensate directly falls into the cooling and liquid removal bottle 4, and a chilled water pump 3 is arranged in front of the cooling and liquid removal bottle 4, and the smoke is collected through the dioxin adsorption and trapping bottle 5 (containing an adsorbent such as XAD resin). After the dioxins in the gas are further collected by washing the bottle 9, the gas passes through the drier 6, the gas flow meter, the thermometer 7, and the sampling pump 8 to complete the whole sampling process.

[0031] Consider...

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Abstract

The invention relates to a method for sampling a special organic gas in a flue gas. The method comprises the following steps: allowing the flue gas to enter through the inner tube of a sleeve from the inlet of a sampling gun, adjusting the temperature, intercepting particles by a filter cylinder, condensing the flue gas by a condensation device, allowing the obtained condensate liquid into a cooling and liquid removing bottle, trapping the cooled and dried gas by a trapping bottle to remove dioxin substances, further collecting by a washing bottle, and allowing the gas to go through a dryer, a gas flow meter, a thermometer and a sampling pump to complete the whole sampling process. A whole flue gas sampling pipeline adopting a full glass structure has the advantages of corrosion resistance, no chemical reaction, convenient cleaning, and prevention of the loss caused by the adsorption or contamination of the acquired sample by the wall surface of a tube wall utensil; the jacket glass sampling gun can heat or cool the acquired flue gas by hot or cold air entering through an external layer; the condensate liquid collection bottle having scales can rapidly judge whether there is severe gas leakage in the sampling process or not; and the flue gas is cooled, condensed, and dehydrated, and then adsorbs a sampling agent to guarantee a high sampling efficiency.

Description

technical field [0001] The invention relates to the technical field of environmental protection and solid waste treatment and disposal, in particular to a method for sampling special organic gases in flue gas. Background technique [0002] Incineration is one of the important means of solid waste treatment, which has the functions of volume reduction, harmlessness and stabilization. However, the flue gas produced by the incineration process contains various pollutants, which can be divided into particulate matter, CO, acid gas, heavy metals and organic pollutants according to the nature of the pollutants. Among them, dioxins, which belong to organic pollutants, are persistent organic pollutants, which are the most poisonous substances known in the world. Dioxin pollution is also a problem of general concern to countries all over the world in recent years. On February 14, 1997, the International Cancer Research Center of the World Health Organization designated 2,3,7,8-tetra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22
Inventor 羌宁王红玉
Owner TONGJI UNIV
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