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Multipoint zoning sampling system and method for monitoring multiphase flow medium ingredient

A partitioned sampling and multi-phase flow technology, applied in sampling, sampling device, test sample preparation, etc., can solve problems such as easy blockage of samplers, low representativeness of single-point sampling, large deviation of measurement results, etc., to achieve Ensure long-term use, reduce operation and equipment maintenance costs, and save resources

Inactive Publication Date: 2017-12-12
南京新瓦特智控科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Multipoint zoning sampling system and method for monitoring multiphase flow medium ingredient
  • Multipoint zoning sampling system and method for monitoring multiphase flow medium ingredient
  • Multipoint zoning sampling system and method for monitoring multiphase flow medium ingredient

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Embodiment 1

[0031] Embodiment 1: as figure 1 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 sixteen sampler components (according to The size of the specific flue can be increased or decreased by the sampler assembly).

[0032] like figure 2 , image 3 The shown sampler assembly comprises a sampling gun barrel 11, a protective shell 12, a filter core 13, a welding flange 14, and a bolt 15; the welding flange 14 is welded on the flue wall, and the tail end of the sampling gun barrel 11 passes through the bolt 15 and The welding flange 14 is connected, and the outlet end opposite to the tail end is provided with an internal threaded hole, which is used to install a hose quick-twist joint and connect with the high-temperature heat tracing pipeline 2; the sampling gun barrel 11 is ...

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Abstract

The invention discloses a multipoint zoning sampling system and method for monitoring a multiphase flow medium ingredient. The multipoint zoning sampling system comprises a sampling unit, a high temperature heat tracing pipeline, a control cabinet and a medium analysis cabinet, the sampling unit comprises sampler components distributed in a to-be-sampled flue, a plurality of sampler components are evenly distributed on the same cross section in the flue, a plurality of sampling holes are evenly distributed on the same cross section of the sampler component, an outlet end of the sampler component is connected with one end of the high temperature heat tracing pipeline, the other end of the high temperature heat tracing pipeline is connected with the control cabinet, the control cabinet is internally provided with a mixed sample gas chamber, and the mixed sample gas chamber is connected with the medium analysis cabinet through a sample pipeline and is communicated with the high temperature heat tracing pipeline through a back blowing pipeline. A plurality of groups of sampler components are distributed in the flue, the flue is divided into a plurality of measuring zones with equal areas, the sampling holes are formed in each sampler component, the sampling unit is controlled through an independent back blowing device, a temperature control device and a zoning sampling control valve, therefore, the sampling is more representative, and the measurement accuracy is higher.

Description

technical field [0001] The invention relates to a multi-point partition sampling system and method for monitoring the composition of a multiphase flow medium, 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 pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22G01N1/34G01N1/44
CPCG01N1/2258G01N1/34G01N1/44
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
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