Gas flowmeter and gas flow rate measuring method

A gas flow meter, gas technology, applied in mass flow measurement devices, volume/mass flow generated by mechanical effects, detection of fluid flow by measuring differential pressure, etc. problems, to achieve the effect of improving measurement accuracy and expanding the scope of application

Active Publication Date: 2012-10-17
卓度仪表(控股)有限公司
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  • Abstract
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Problems solved by technology

However, this all-electronic gas flowmeter still cannot provide a large range

Method used

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  • Gas flowmeter and gas flow rate measuring method
  • Gas flowmeter and gas flow rate measuring method
  • Gas flowmeter and gas flow rate measuring method

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Embodiment Construction

[0040] The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] The invention provides a gas flowmeter, comprising: a gas pipeline and a sensor assembly;

[0042] The sensor assembly is installed at the gas pipeline, the sensor assembly includes a gas induction flow channel, the gas induction flow channel is located inside the gas pipeline, and the gas in the gas pipeline and the gas induction flow channel flow in the same direction;

[0043] The sensor assembly includes a calorimetric sensing element, a heat dissipation sensing element ...

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Abstract

The invention relates to the field of gas metering, particularly a gas flowmeter and a gas flow rate measuring method which can provide a wide metering range. The gas flowmeter comprises a gas pipeline and a sensor module, wherein the sensor module is installed on the gas pipeline, and comprises a gas sensing flow channel; the gas sensing flow channel is positioned inside the gas pipeline; the gas has the same flow direction in the gas pipeline and the gas sensing flow channel; the sensor module comprises a calorimetric sensing element, a heat dissipation sensing element and a data processing chip; the calorimetric sensing element and the heat dissipation sensing element are positioned inside the gas sensing flow channel, and used for transmitting a detected temperature change signal to the data processing chip; and the data processing chip carries out data storage and data computation according to the temperature change signal.

Description

technical field [0001] The invention relates to the field of gas metering, in particular to a gas flow meter and a gas flow measurement method. Background technique [0002] In the prior art, when measuring the flow of gas for urban use, mechanical instrument technology is mostly used, such as turbine gas flowmeter and Roots gas flowmeter. Although mechanical instruments have a long service life and good reliability, they cannot directly compensate for changes in gas volume due to environmental changes, such as the effects of temperature and pressure. At the same time, the measurement range of mechanical instruments is very limited, which cannot meet the measurement range that needs to be detected. [0003] In addition to mechanical instruments, there are a few places where fully electronic gas flow meters are used. This flowmeter can compensate for gas changes caused by changes in environmental factors such as temperature and pressure, and can also increase the ability of...

Claims

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Application Information

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IPC IPC(8): G01F1/76G01F1/44G01F15/06
Inventor 杨祥友魏凯平冯勇江苏刚陈志昌黄立基
Owner 卓度仪表(控股)有限公司
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