Fuel gas metering method and device based on temperature compensation

Abstract

The invention provides a fuel gas metering method and device based on temperature compensation. The method comprises the following steps that: obtaining the temperature values of N pieces of moments in a preset time period, wherein N is a positive integer greater than 1, and the time intervals of N pieces of moments are the same; screening all temperature values to obtain a target temperature value; according to the target temperature value and the parameters of a temperature sensor, carrying out calculation to obtain a temperature effective value in the preset time period, wherein the parameters of the sensor comprise a standard temperature value, a temperature sensitivity coefficient and a temperature constant; and according to the temperature effective value, utilizing a formula to convert a fuel gas volume value measured by a fuel gas gauge table into a fuel volume value under a standard situation temperature. Therefore, the problem of big fuel gas metering errors due to differenttemperature environments can be effectively solved, fuel gas metering accuracy is improved, and therefore, the economic losses of gas companies and users are lowered.

Description

technical field [0001] The present application relates to the field of gas metering, in particular to a gas metering method and device based on temperature compensation. Background technique [0002] At present, the cost calculation between gas companies and residential users is almost always measured by membrane gas meters. Due to the huge temperature difference between winter and summer, the huge temperature difference will cause the gas to compress or expand, that is, the temperature is too low or lower than the standard temperature, the gas is compressed, and the amount of gas measured by the membrane gas meter will be reduced accordingly, and based on the huge On the contrary, if the temperature exceeds the standard temperature and the gas expands, the gas volume measured by the membrane gas meter will increase accordingly, and the gas fee paid by the user will also increase, which will also cause certain damage to the user. economic loss. [0003] Therefore, since th...

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Problems solved by technology

[0004] This application provides a gas metering method and device based on temperature compensation to solve the problem that the metering error of the membrane gas meter is relatively large due to the fact that the membrane gas meter works at a non-standard temperature and the gas volume changes due to the temperature. The problem of economic loss caused by both the company and the user

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