Magnetic-inducing pulse measuring membrane type gas meter

Abstract

The invention relates to the field of gas metering, in particular to a magnetic-inducing pulse measuring membrane type gas meter. The magnetic-inducing pulse measuring membrane type gas meter comprises a gas meter body, a metering chamber, a gas inlet, a gas outlet, a gas meter movement and a body gear and further comprises a metering rotation shaft, a speed improving gear set, magnetic steel, a high magnetic conductive stator piece, a coil holder iron core and an intelligent plate, a magnetic pole cavity is arranged on the high magnetic conductive stator piece, an even number of equant magnetic zones are arranged on the magnetic steel, the magnetic poles of every two adjacent magnetic zones are opposite, the coil holder iron core is wound with a coil, the intelligent plate is connected with the coil to obtain pulse signals on the coil, and the pulse signals are converted into gas flow information. The gas meter drives the magnetic steel to rotate through the body gear, the speed improving gear set and the metering rotation shaft so as to make the coil produce pulse signals, the pulse signals are converted into the gas flow information, the measuring accuracy is high, measurement is accurate during smaller gas flow, and metering leakage is small. In addition, the magnetic-inducing pulse measuring membrane type gas meter further has the advantages of being low in manufacturing cost, high in accuracy, convenient to install and the like.

Description

technical field [0001] The invention relates to the field of gas metering, in particular to a membrane gas meter for magnetic induction pulse metering. Background technique [0002] At present, there are two mainstream gas meters on the market, one is the traditional mechanical membrane gas meter; the other is the prepaid membrane gas meter. The measurement of the mechanical membrane gas meter is realized by the mechanical roller. The mechanical roller is added according to the gas volume used. Every time a unit is used, the count of the roller is increased by one, and finally the gas volume measurement record is realized. The prepaid membrane gas meter adds electronic metering, prepayment and display functions on the basis of the traditional mechanical type, and can display the current working status of the gas meter. [0003] These two gas meters have the following defects: 1. The measurement accuracy is limited, and when the gas flow rate is small, the measurement leakag...

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Problems solved by technology

[0003] These two gas meters have the following defects: 1. The measurement accuracy is limited, and when the gas flow rate is small, the measurement leakage is large, and it is difficult to measure accurately; 2. The measurement accuracy is low, and the manufacturing cost is high; 3. The management cost is high, and the monitoring in case of failure difficulty

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