Gas flow indirect metering method based on gas pressure waveform integral cycle extraction algorithm

A technology of gas pressure and waveform integration, which is applied to the volume/mass flow generated by mechanical effects, and the detection of fluid flow by measuring differential pressure. It can solve the problems that the metering device cannot perform real-time monitoring and large metering errors, and achieve real-time monitoring. With flow measurement, the error is small, and the effect of improving safety

Inactive Publication Date: 2018-11-13
SHANDONG UNIV
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Problems solved by technology

[0003] The present invention aims to solve the technical problem that the existing membrane gas meter metering device cannot perform real-time monitoring and the measurement error is large, and provides a gas flow indirect method based on the gas pressure waveform integral period extraction algorithm that can perform real-time monitoring and has a small measurement error. Measurement method

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  • Gas flow indirect metering method based on gas pressure waveform integral cycle extraction algorithm
  • Gas flow indirect metering method based on gas pressure waveform integral cycle extraction algorithm
  • Gas flow indirect metering method based on gas pressure waveform integral cycle extraction algorithm

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Embodiment Construction

[0049] Referring to the accompanying drawings, the present invention will be further described in detail with specific embodiments.

[0050] Such as figure 1As shown, the valve body includes a sensor connection part 5 and a main body part 6 connected together, and the connection between the sensor connection part 5 and the main part 6 is sealed by an O-ring 4 . The sensor bracket 7 is connected to the sensor connection part 5 , and the connection between the sensor bracket 7 and the sensor connection part 5 is sealed by an O-ring 8 . The main body 6 is connected with the piston 3 , the valve screw sleeve 2 is connected with the main body 6 , and the valve screw 1 is connected with the valve screw sleeve 2 . The valve screw rod 1 is connected with a handle.

[0051] Such as Figure 11 As shown, the valve body 12 represents figure 1 In the shown valve body, the inlet of membrane gas meter 9 is connected with natural gas pipeline 11 through pipeline, and the outlet of membran...

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Abstract

The invention relates to a gas flow indirect metering method based on a gas pressure waveform integral cycle extraction algorithm. The technical problems that an existing membrane type gas meter metering device cannot carry out monitoring in real time and metering errors are large are solved. By detecting a cyclical fluctuation signal of a gas outlet of a membrane type gas meter, the number of cycles is multiplied by the fixed volume of the membrane type gas meter to obtain the gas flow. The method is widely applied to the technical field of gas metering.

Description

technical field [0001] The invention relates to the technical field of gas metering, in particular to an indirect gas flow metering method based on a gas pressure waveform integration period extraction algorithm. Background technique [0002] At present, when the membrane gas meter is in use, the staff need to enter the house to perform manual meter reading, and the IC card membrane gas meter cannot monitor the user's gas usage status and flow in real time. In winter and summer working conditions, the membrane gas meter still adopts the volume measurement method, which causes losses caused by measurement errors to both the gas company and the user, and cannot be corrected by the gas state equation for temperature and pressure. For dangerous states such as excessive gas flow, open fire, long-term non-use, etc., the traditional membrane gas meter metering terminal cannot realize real-time monitoring. Contents of the invention [0003] The present invention aims to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/34
CPCG01F1/34
Inventor 王小利韩钊陈晓鹏
Owner SHANDONG UNIV
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