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Natural gas flowmeter verification system

A flow meter and natural gas technology, applied in liquid/fluid solid measurement, measuring devices, instruments, etc., can solve problems such as difficulty in ensuring measurement accuracy, complicated operation, and inability to adapt, and achieve strong functions, small size, and high reliability Effect

Inactive Publication Date: 2018-02-09
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

The traditional natural gas flowmeter verification method is far from meeting the needs of modern natural gas industry measurement due to problems such as difficult to guarantee measurement accuracy, low efficiency and complicated operation.

Method used

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  • Natural gas flowmeter verification system

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Embodiment Construction

[0018] In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are listed below and shown in the accompanying drawings in detail as follows.

[0019] Such as figure 1 as shown, figure 1 It is a structural diagram of the natural gas flowmeter verification system of the present invention. This system is mainly composed of critical flow nozzle device 1, electric air pump 2, module combination 3, PLC processor 4, and host computer controller 5.

[0020] The critical flow nozzle device 1 is composed of a group of nozzles, installed on a stagnation container, its outlet is connected to the electric pump 2 through 304 stainless steel pipes, and the meter under test is connected in series with the stagnation container through 304 stainless steel pipes. The critical flow nozzle device 1 is a measurement standard device, and its measured value is transmitted to the module combination 3 .

[0021] Th...

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Abstract

The invention provides a natural gas flowmeter verification system. A critical flow nozzle device is a measurement standard device, and transmits a measured value to a module combination. An electricsucking pump provides a gas source, and extracts gas of a stagnation container, to make the container have certain vacuum degree. The module combination acquires temperature, pressure, and humidityof the position of the stagnation container, and temperature and pressure of the position of a natural gas flowmeter examined meter, and transmits signals to a PLC processor to process and takes partin flow error calculation. The PLC processor transmits processed temperature, pressure, and humidity values, and a corrected measured value of the critical flow nozzle device to an upper computer controller. The upper computer controller displays information transmitted by the PLC processor. The natural gas flowmeter verification system is flexible and universal, and is advantaged by high reliability, good anti-interference capability, simple use, good function, and small volume.

Description

technical field [0001] The invention relates to the technical field of metering devices, in particular to a natural gas flow meter verification system. Background technique [0002] With the development of the natural gas industry, the measurement of natural gas has been paid more and more attention by departments at all levels, which puts forward higher requirements for the verification of flowmeters. The traditional natural gas flowmeter verification method is far from being able to meet the needs of modern natural gas industry measurement due to problems such as difficult to guarantee measurement accuracy, low efficiency and complicated operation. For this reason, we have invented a new verification system for natural gas flowmeters, which solves the above technical problems. Contents of the invention [0003] The purpose of the present invention is to provide a natural gas flowmeter verification system, which adopts the integrated design of electronic technology and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
CPCG01F25/00
Inventor 李高峰王宏伟朱成义王杰吴冠玓吕奇明张宝强
Owner CHINA PETROLEUM & CHEM CORP
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