Purging and flushing switching device and method for flue gas sampling
A technology for switching devices and flue gas, which is applied in the direction of sampling devices, measuring devices, sampling, etc. It can solve the problems that the sampling speed cannot be increased and the amount of on-site work is large, so as to increase the efficiency of sample collection and prevent the leakage of flue gas and liquid , the effect of reducing work intensity
Pending Publication Date: 2022-01-07
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology
The steps of collecting other types of pollutants are similar to collecting ammonia in flue gas. Therefore, most of the on-site sampling work is concentrated on replacing the absorbing liquid, flushing / purging the sampling pipeline, etc., resulting in the inability to increase the sampling speed and a large amount of on-site work.
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[0031] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.
[0032] The present invention is a kind of purging and flushing switching device for flue gas sampling, such as figure 1 or figure 2 As shown, the switching device includes a base 12 arranged in a cube, a cylindrical rotating body 17 inserted into the base 12 by rotation, and a flue gas pipeline, a sampling pipeline and a cleaning pipeline arranged inside the base 12;
[0033] The cylindrical rotating body 17 is installed in the base 12, and one end protruding into the base 12 is arranged in a spherical shape, and the part extending into the base 12 is sealed to pass through the flue gas pipeline 13 and the cleaning pipeline 14; The cylindrical rotating body 17 is respectively provided with two communication holes corresponding to the flue gas pipeline 13 and the cleaning pipeline 14, and th...
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The invention relates to the field of flue gas sampling, and concretely relates to a purging and flushing switching device and method for flue gas sampling. The device comprises a base, a cylindrical rotating body, and a flue gas pipeline, a cleaning pipeline and a sampling pipeline which are arranged in the base; the flue gas pipeline and the cleaning pipeline are arranged in parallel, and the input end of the sampling pipeline is respectively communicated with the output ends of the flue gas pipeline and the cleaning pipeline; the cylindrical rotating body is rotationally inserted into the base and penetrates through the smoke pipeline and the cleaning pipeline in a sealed mode; and the cylindrical rotating body is provided with two communicating holes corresponding to the flue gas pipeline and the cleaning pipeline, and the two communicating holes are formed in the radial direction of the cylindrical rotating body and are perpendicular to each other. The device is reasonable in design, simple in structure, convenient to install and capable of effectively relieving the working intensity of field testers.
Description
technical field [0001] The invention relates to the field of flue gas sampling, in particular to a purge and flush switching device and method for flue gas sampling. Background technique [0002] When measuring the particulate matter in the exhaust of fixed pollution sources or sampling gaseous pollutants, the sampling pipe needs to be heated to collect the pollutants in the flue gas. The heating temperature required for different pollutants is different, and the outlet of the sampling pipe is connected to the absorption bottle with a pipeline. , use the absorption liquid in the absorption bottle to absorb the pollutants in the flue gas, but when using this method, in order to avoid the trace pollutants in the flue gas from adhering to the sampling pipeline before the absorption bottle, generally after each sampling is completed, the absorption The sampling pipeline in front of the bottle is rinsed, and the rinse water is collected to ensure accurate sample collection. Taki...
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CPCG01N1/2247
Inventor 舒凯潘栋袁壮李淑宏尚桐石磊杨世极徐晓涛
Owner XIAN THERMAL POWER RES INST CO LTD