An analysis and sampling combination valve for hyco production equipment

Abstract

The invention relates to an analyzing and sampling combined valve for an HYCO production device. The analyzing and sampling combined valve is installed on a sampling point flange on a technological pipe, and comprises a filter, a current-limiting depressurization pore plate and two needle-shaped stop valves with independent flow paths, wherein the filter, the current-limiting depressurization pore plate and the needle-shaped stop valves are installed on the sampling point flange; the sampling point flange, the needle-shaped stop valves, the filter and the current-limiting depressurization pore plate are sequentially connected. Sample gas flows through the sampling point flange, and enters into the filter after entering into the needle-shaped stop valves with independent flow paths through being divided into two paths, the sample gas filtered by the filter is subjected to depressurization through the current-limiting depressurization pore plate, and at last the sample gas is conveyed. Compared with the prior art, the analyzing and sampling combined valve has the advantages of simple structure and high analysis and measurement accuracy and the like, and is convenient to disassemble and good in airtight performance.

Description

technical field [0001] The invention relates to a HYCO production device, in particular to an analysis and sampling combined valve part for the HYCO production device. Background technique [0002] Now, in HYCO production, the sample flow path of the process analysis system is to set a sample flow path cut-off valve (root valve) on the process pipeline in order to cut off the sample flow path for maintenance of the sample processing system. The sample processing system consists of filtration, decompression , current limiting, dehydration and removal of corrosion and other special components. [0003] Usually the independent functional parts; cut-off valve, filter, flow limiting and pressure reducing valve are too large in design volume, and the internal dead volume is also too large, the sample gas is not easy to be replaced cleanly, and it is not suitable for the monitoring of high-purity gas. [0004] In addition, there are too many connecting joints between the various s...

AI Technical Summary

Problems solved by technology

[0003] Usually independent functional parts; cut-off valve, filter, flow limiting and pressure reducing valve are designed with too large volume, and the internal dead volume is also too large, the sample gas is not easy to be replaced cleanly, which is not suitable for the monitoring of high-purity gas

[0004] In addition, there are too many connecting joints between the various spare parts, which increases the leakage points

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