Full cross-sectional multi-point sampling system and method for monitoring multi-phase flow medium components
A sampling system and multi-phase flow technology, applied in the field of full-section multi-point sampling system, can solve the problems of low representativeness of single-point sampling, large deviation of measurement results, and easy blockage of samplers, so as to ensure reliable on-site operation, Effects that are not limited by the environment
Inactive Publication Date: 2018-02-09
南京新瓦特智控科技有限公司
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Problems solved by technology
At present, most CEMS measurement systems on the market use single-point sampling. Due to the serious uneven flow field in the large flue, the representativeness of single-point sampling is not strong, so the measurement results often have large deviations, and the sampler is easy to block.
Method used
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Embodiment 1
[0033] Embodiment 1: as figure 1 , figure 2 The shown multi-point partition sampling system for monitoring the composition of multiphase flow media includes a sampling unit 1, a high-temperature heat tracing pipeline 2, a control cabinet 3, and a medium analysis cabinet 4; the sampling unit 1 includes four sampler components (according to the specific flue size, sampler assembly can be added).
[0034] Such as image 3 , Figure 4 The shown sampler assembly comprises support 11, sampling gun barrel 12, protective shell 13, filter element 14, welding flange 15, bolt 16, channel steel 17; welding flange 15 is welded on the flue wall to be sampled, and sampling The tail end of the gun barrel 12 is connected to the welding flange 15 through a bolt 16, and the other end is supported horizontally by a bracket 11. The bracket 11 is fixed on the flue wall by a channel steel 17. The welding flange 15 is provided with an internal threaded hole for the internal threaded hole. The qu...
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The invention discloses a full cross-sectional multi-point sampling system for monitoring multi-phase flow medium components. The system comprises a sampler assembly, an outlet end of the sampler assembly is connected with one end of a high-temperature heat-tracing pipe, the other end of the high-temperature heat-tracing pipe is connected to an outer end of an inlet sample gas high-temperature heat-tracing pipe, an outer end of an outlet sample gas high-temperature heat-tracing pipe is communicated with a medium analysis cabinet, an inlet of a uniform pressure mixer is communicated with an inner port of the inlet sample gas high-temperature heat-tracing pipe, an outlet pipe is respectively communicated with a sampling solenoid valve, an inner port of the outer sample gas high-temperature heat-tracing pipe and a back flushing electric ball valve, one end of a suction pump is communicated with the sampling solenoid valve, the other end of the suction pump is communicated with an ash discharge flue through an exhaust pipe, the back flushing electric ball valve is connected to the suction pump through a back flushing pipe, a compressed air source pipe is connected to a pressure reducing filter, the pressure reducing filter is connected to a heater, and a control circuit controls on-off signals of the back flushing electric ball valve and the sampling solenoid valve. The system realizes multi-point mixing sampling. The sampler assembly has a back flushing function and guarantees long-term use and sample gas extraction.
Description
technical field [0001] The invention relates to a full-section multi-point sampling system and method for monitoring multiphase flow medium components, belonging to the technical field of environmental monitoring. Background technique [0002] At present, the national environmental protection strictly controls the monitoring and emission of polluting gases, such as power plant denitrification and desulfurization CEMS monitoring, some data need to be uploaded to the Environmental Protection Bureau for filing, so scientific and accurate measurement of its medium composition is particularly important. At present, most CEMS measurement systems on the market use single-point sampling. Due to the serious uneven flow field in the large flue, the representativeness of single-point sampling is not strong, so the measurement results often have large deviations, and the sampler is easy to block. Contents of the invention [0003] Purpose of the invention: The purpose of the present i...
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Patent Timeline
Login to View More IPC IPC(8): G01N1/24
CPCG01N1/2205G01N1/2258G01N2001/2285
Inventor 王丹秋李良春邵建国赵厚任曹纯建王鑫
Owner 南京新瓦特智控科技有限公司