Performance evaluation method and device for natural gas component detection equipment

Abstract

The invention provides a natural gas component detection equipment performance evaluation method and device. The method comprises the following steps: fitting an evaluation response function taking component concentration as an independent variable and an equipment response value as a dependent variable based on a test result of standard gas introduced into equipment to be evaluated; determining an equipment response function of the to-be-evaluated equipment, wherein the equipment response function is a direct proportion function taking the component concentration as an independent variable and the equipment response value as a dependent variable; substituting the component concentration set value x into the evaluation response function to obtain an equipment response value y, and substituting y into an inverse function of the equipment response function to obtain a component concentration measured value X; and performing performance evaluation on the to-be-evaluated equipment based on the error between x and X. According to the invention, automatic evaluation of the performance of the natural gas detection equipment is realized. Performance evaluation can be carried out by calculating the high-order volume calorific value of the natural gas. Scoring can be carried out based on the error, and quantitative evaluation of the performance of the natural gas detection equipment is achieved.

Description

technical field [0001] The invention belongs to the technical field of natural gas component detection, and in particular relates to a method and device for evaluating the performance of natural gas component detection equipment. Background technique [0002] According to the requirements of the "Measures for the Fair and Open Supervision of Oil and Gas Pipeline Network Facilities" jointly issued by the National Development and Reform Commission and the Energy Bureau, my country's domestic natural gas trade should be transformed into an energy measurement, pricing and settlement model before May 2021. In the energy measurement mode, the accuracy of natural gas composition measurement results will directly affect the accuracy of calorific value calculation results, which will have an important impact on the energy value of trade settlement, thus directly affecting the economic interests of both parties to the trade. Therefore, how to ensure that the on-line gas chromatograph ...

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Problems solved by technology

However, there is no unified and effective evaluation method for the performance of the natural gas analysis system mainly composed of gas chromatographs.

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