Gas metering method and device based on energy metering

A gas metering and energy technology, applied in mass flow measurement devices, indirect mass flow meters, etc., can solve problems such as inaccurate metering, and achieve a reasonable effect of gas metering

Active Publication Date: 2016-08-10
CHENGDU QIANJIA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the inaccurate measurement of gas metering by volume in the prior art, to provide a gas metering method based on energy metering, and to provide a gas metering device based on energy metering

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  • Gas metering method and device based on energy metering
  • Gas metering method and device based on energy metering
  • Gas metering method and device based on energy metering

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0022] refer to figure 1 , the present invention provides a gas metering method based on energy metering, comprising the following steps:

[0023] Step 10: Use the gas chromatograph to measure the composition of the natural gas, and the gas metering device receives the natural gas composition data measured by the gas chromatograph. Implement this step and can adopt two kinds of implementation modes, and wherein a kind of implementation mode is to adopt the gas metering device that is provided with the gas chromatograph analyzer based on MEMS, the gas chromatograph analyzer passes th...

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Abstract

The invention discloses a gas metering method based on energy metering. The gas metering method includes the steps: firstly, measuring components of natural gas by the aid of a gas chromatographic analyzer and determining the mass heating value of the natural gas according to the components of the natural gas; secondly, metering the mass flow rate of the natural gas; finally, determining energy of the natural gas according to the mass heating value and the mass flow rate to meter the energy. The invention further provides a gas metering device based on energy metering, wherein the device implements the method. The components of the natural gas are measured by the aid of the gas chromatographic analyzer, the mass heating value of the natural gas is obtained according to the components of the natural gas, the energy of the natural gas is calculated according to the mass flow rate of the natural gas and can be metered, and the novel metering mode is more reasonable and accurate.

Description

technical field [0001] The invention relates to the technical field of gas metering, in particular to a gas metering method based on energy metering and a gas metering device based on energy metering. Background technique [0002] Natural gas is clean and efficient energy, so more and more urban residents use natural gas. A gas meter is a device that measures the gas consumption of a user. The current natural gas metering devices and household gas meters (leather mold meters) all measure the volume flow under the working conditions (actual working conditions). However, due to the compressibility of natural gas, the volume flow rate under different temperature and pressure conditions Volume metering is different, resulting in inaccurate gas metering. At present, industrial and commercial users use flowmeters in conjunction with volume correctors to convert the volume of natural gas to a standard state (in China, it is a standard atmospheric pressure, 101.325KPa and 20 degre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/86
Inventor 刘勋赵勇雷新民
Owner CHENGDU QIANJIA TECH CO LTD
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