Title:
ONLINE MONITORING METHOD FOR METERING PERFORMANCE OF DIAPHRAGM GAS METER
Document Type and Number:
Japanese Patent JP2020008549
Kind Code:
A
Abstract:
To provide an online method for metering performance of a diaphragm gas meter.SOLUTION: An online monitoring method for metering performance of a diaphragm gas meter is provided in which a magnetic turntable 53 in an electromechanical conversion device is reasonably segmented and motion information of each segment is recorded and analyzed, so as to implement qualitative and quantitative judgment in metering errors of the diaphragm gas meter, internal leakage judgment, external leakage judgment and safety judgment for a constant flow rate. Every time when the diaphragm gas meter discharges gas of a rotary volume, a rotating shaft of a meter core rotates a circle, the magnetic turntable is directly meshed with a driving gear 51 output by the rotating shaft in the meter or output by the rotating shaft outside the meter to ensure that the magnetic turntable rotates a circle every time when the diaphragm gas meter discharges a rotary volume. The online method for metering performance of a diaphragm gas meter materializes significantly improved metering accuracy, qualitative and quantitative judgment in the metering error, internal leakage judgment, external leakage judgment and safety judgment for a constant flow rate. The online method is significant for error management of the gas meter and intelligent control and gas utilization safety management of a gas user.SELECTED DRAWING: Figure 4
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Inventors:
YU ZHANG SONG
LI CHANG JIANG
CHENG GUO YONG
LI RONG SHU
LI CHANG JIANG
CHENG GUO YONG
LI RONG SHU
Application Number:
JP2018234379A
Publication Date:
January 16, 2020
Filing Date:
December 14, 2018
Export Citation:
Assignee:
WEIHAI ZHUOCHENG GAS SAFETY DEVICE CO LTD
International Classes:
G01F3/22
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Attorney, Agent or Firm:
▲吉▼川 俊雄
Kana Ichikawa
Kana Ichikawa