A kind of electronic measurement temperature and pressure compensation method of gas meter
An electronic metering and pressure compensation technology, which is applied in the field of pricing and accounting, can solve the problem of inaccurate metering gas volume, etc., and achieve the effect of reducing the influence of abnormal temperature and reducing the loss
Active Publication Date: 2021-02-19
GOLDCARD HIGH TECH
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Problems solved by technology
[0003] In order to solve the technical problem in the prior art that the gas meter is used in environments with different temperatures and pressures and the gas volume is not accurate enough, the invention provides an electronic temperature and pressure compensation method for the gas meter to ensure accurate gas metering
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Embodiment 1
[0012] An electronic metering temperature and pressure compensation method for a gas meter, comprising: a controller of the gas meter, a counting register connected with the controller, a temperature sensor and a pressure sensor. The counting register stores the temperature and pulse number comparison table suitable for the temperature sensor. The comparison table of the temperature sensor temperature and the number of pulses in this embodiment is temperature: -40°C to 150°C, and the corresponding number of pulses is 181 to 3220. The temperature range is divided into nineteen calculation segments in units of 10°C. The number of pulses corresponding to the temperature value at the beginning and end of each calculation segment is the threshold pulse number. When the temperature collection time is up, the controller controls the temperature sensor to start temperature collection. The controller regularly reads the counting register to store data. After the temperature sensor i...
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The invention provides an electronic measurement temperature and pressure compensation method for a gas meter, and relates to the technical field of pricing calculation. The counting register stores a temperature and pulse number comparison table, which is segmented in units of 10°C. The number of pulses corresponding to the temperature value at the beginning and end of each segment is the threshold pulse number; the number of collected pulses returned by the temperature sensor and the threshold pulse number of each calculation segment Comparing to obtain the calculated temperature score, which is then added to the temperature value corresponding to the small threshold pulse number to obtain the temperature value; by comparing with the standard temperature, pressure and gas volume, the gas usage volume under the working condition is obtained. The invention solves the technical problem in the prior art that the gas meter is used in environments with different temperatures and pressures and the gas volume is not accurate enough. The beneficial effects of the present invention are: the gas consumption in working conditions is calculated through the relationship between temperature and pressure to calculate the gas consumption in standard conditions, which more accurately reflects the volume of gas actually used, and reduces the loss of gas sales by gas companies.
Description
technical field [0001] The invention relates to the technical field of pricing and accounting, in particular to a calculation method for temperature and pressure compensation of electronic metering of gas meters. Background technique [0002] my country has a vast territory and a large latitude span, and the temperature and pressure vary greatly between different regions. Gas with the same quality has different temperature, pressure and volume. There is a large difference in gas metering. Ordinary gas meters are volumetric flow meters, and the gas volume is basically independent of temperature and pressure changes. In this way, the measured gas volume is not the actual gas volume used under non-standard conditions, and the measurement accuracy for different temperatures is not high. Chinese patent application publication number CN106225862A, the application publication date is December 14, 2016, and the invention patent application titled "gas flow simple compensation met...
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IPC IPC(8): G01F15/04
CPCG01F15/04
Inventor 王郑凯张礼丁渊明
Owner GOLDCARD HIGH TECH