Solar-control type natural gas automatic continuous sampling system

Abstract

The invention belongs to the technical field of detection of natural gas, and particularly relates to a solar-control type natural gas automatic continuous sampling system. The solar-control type natural gas automatic continuous sampling system is characterized in that a sampling control disc is connected with an electromagnetic valve; a solar panel is used for absorbing solar energy, the solar energy is converted into electric energy by a solar controller, the electric energy converted by the solar controller is used for supplying power for the sampling control disc, the electromagnetic valveis controlled by the sampling control disc, and a pneumatic diaphragm sampling pump is controlled to act, thereby controlling a sampling probe to continuously sample. The solar-control type natural gas automatic continuous sampling system has the advantages that the effect of automatic sampling is realized, and the sampled gas can completely represent the fluid medium in the whole production cycle, and is representative; the power is supplied by the solar energy, and the independent power supply is not required; the control gas source of the pneumatic diaphragm sampling pump selects the natural gas in a pipeline, the single supply of instrument gas source is not required, and the solar-control type natural gas automatic continuous sampling system can be used for a long time under the adverse environments in remote regions.

Description

technical field [0001] The invention belongs to the technical field of natural gas detection, and in particular relates to an automatic continuous sampling system for natural gas controlled by solar energy. Background technique [0002] The determination of natural gas composition can provide a strong guarantee for gas custody transfer and flow measurement. The accuracy of the determination of natural gas composition depends largely on the sampling technique. The traditional sampling system is to sample the natural gas in the pipeline through a sampling probe, and then decompress it through a pressure reducing valve, collect the natural gas in the pipeline with a sampling cylinder, and then go to the laboratory for testing. Because of the traditional sampling system, when sampling, only the natural gas medium at a certain point in time can be intercepted (such as figure 1 shown), the sampling gas is not representative. Especially if the fluid is unstable, there will be a ...

AI Technical Summary

Problems solved by technology

When natural gas is decompressed, it may cause gas condensation, which will cause the sample components to be inconsistent with the actual medium

Full manual operation, low degree of automation

And in some remote areas, the environment is relatively harsh, and the existing sampling system cannot meet the requirements of use

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