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Built-in valve status detection device and method of intelligent gas meter

A state detection device and a technology with built-in valves, which are applied in measuring devices, test/calibration devices, liquid/fluid solid measurement, etc., can solve problems such as missed judgment efficiency and low efficiency, and achieve the effect of improving accuracy and detection efficiency

Pending Publication Date: 2018-05-08
杭州先锋电子技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, traditional detection methods are prone to missed judgments and low efficiency.

Method used

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  • Built-in valve status detection device and method of intelligent gas meter
  • Built-in valve status detection device and method of intelligent gas meter

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention will be further described:

[0022] Aiming at the deficiencies of traditional detection means, the present invention provides a built-in valve state detection device for an intelligent gas meter. The device adopts the gas flow sensor sampling method, and when the gas meter valve is opened, the gas of the main ventilation pipeline is The flow rate is converted into an analog electrical signal; when the gas meter valve is closed and the upstream air flow is blocked, the valve leakage flow is converted into an analog electrical signal, and the built-in valve of the gas meter can be quickly and accurately judged by judging the two electrical signals status. The device uses a reversing valve to select the main ventilation pipeline to be sampled to meet the needs of gas meter detection in different ventilation directions.

[0023] The present invention is composed of a gas flow sensor 1, a reversing valve ...

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Abstract

The invention relates to a built-in valve status detection device and method of an intelligent gas meter. The built-in valve status detection device is composed of a gas flow sensor, a reversing valve, a left closed valve, a right closed valve, the intelligent gas meter, a left main gas path and a right main gas path; the air outlet of the reversing valve is connected with an air intake of a flowsensor of the gas flow sensor, the flow sensor air outlet of the gas flow sensor is communicated with outside air, and the gas flow sensor can convert gas flow flowing from the air intake to the air outlet into analog electronic signals. Ventilation flow of the complete gas meter is judged rapidly in quantification by adopting sampling of the gas flow sensor, and accuracy and detection efficiencyare improved; leakage gas flow in a built-in valve of the complete gas meter is rapidly judged in quantification by adopting sampling of the gas flow sensor, accuracy and detection efficiency are improved; a ventilation pipeline and a sampling channel are configured by adopting the valve, and detection of the gas meter in two ventilation directions can be achieved.

Description

technical field [0001] The invention relates to a detection device and a detection method for a built-in valve state of an intelligent gas meter. Background technique [0002] The built-in valve is an important part of the smart gas meter, and its performance has a crucial impact on the function and safety of the gas meter. Therefore, during the function detection and detection process of the smart gas meter, it is necessary to know the switch status of its built-in valve in real time. In the traditional detection method, the opening or closing of the built-in valve can only be judged by manually observing the rotation of the counting wheel of the gas meter. In the open state of the built-in valve, as to whether it can be opened in place, the method of observing the rotation speed of the counting wheel of the gas meter has a large subjective factor and cannot be quantitatively judged. In the state where the built-in valve is closed, if the valve is not closed tightly and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
CPCG01F25/15
Inventor 石扬王丽胡建宇吴嘉禄蒋晓玲曹吉梁
Owner 杭州先锋电子技术股份有限公司
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