Porous impact type fly ash sampler
An impact type sampler technology, applied in the field of porous impact type fly ash sampler, can solve the problems of poor sampling effect, limited opening size, and poor sample representativeness, so as to improve the monitoring effect, meet the use requirements, and expand the acceptance area effect
Inactive Publication Date: 2009-06-03
江苏施达尔电气有限公司
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Problems solved by technology
The shortcoming of this sampler is that its sampling port face is an elliptical slope at the end, the size of the opening is limited, and only a small part of the specific fly ash sample can be taken, which makes the representativeness of the sample poor, and this The amount of fly ash picked up by this sampler is too small, which often cannot meet the needs of the fly ash carbon content monitoring system, so the sampling effect is not good
Method used
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[0009] Such as figure 1 and figure 2 As shown, the porous impact fly ash sampler of the present invention comprises a pipe body 1 vertically welded in the flue 5, and a funnel 2 connected with an external ash pipe is installed at the bottom end of the pipe body 1; the pipe body 1 Closed by the cover plate 3, a plurality of rectangular sampling windows 4 are opened from top to bottom on the side of the pipe body facing the flue gas flow.
[0010] When in use, the flue gas flow enters the pipe body 1 from the sampling window 4, hits the pipe wall, and the fly ash falls into the funnel 2 and enters the ash guide pipe.
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The invention relates to a coal conservation monitoring device for a boiler in a heat engine plant, in particular to a porous impact type fly ash sampler. The porous impact type fly ash sampler comprises a tube body vertically fixed in a fume duct. A funnel is mounted at the bottom end of the tube body; the top part of the tube body is sealed by a cover board; and a plurality of sampling windows are arranged on the tube wall on one side of the tube body towards to the fume flow from top to bottom. The porous impact type fly ash sampler adopts the structure that a plurality of holes are formed on the tube wall of the tube body towards to the fume flow from top to bottom, so that the receiving area is enlarged; samples within the larger range can be obtained; the obtaining rate of fly ash is increased; the use requirements of detectors can be satisfied; and the monitoring effect is improved.
Description
technical field [0001] The invention relates to coal-saving monitoring equipment for boilers in thermal power plants, in particular to a porous impact fly ash sampler used in a fly ash monitoring system. Background technique [0002] The fly ash monitoring system is a system used by thermal power plants to monitor coal-fired fly ash. The fly ash monitoring system samples fly ash samples through the fly ash sampler installed in the flue. The structure of the usual impact fly ash sampler is a pipe body welded vertically in the flue. The fly ash taken out is exported out of the flue. The shortcoming of this sampler is that its sampling port face is an elliptical slope at the end, the size of the opening is limited, and only a small part of specific fly ash samples can be picked up, which makes the representativeness of the sample poor, and this The amount of fly ash picked up by this sampler is too small, which often cannot meet the needs of the operation of the fly ash carbo...
Claims
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Inventor 施大荣郑中信杨万福
Owner 江苏施达尔电气有限公司
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