High-precision micro-flow monitoring wireless remote transmission diaphragm gas meter

Abstract

The invention provides a high-precision micro-flow monitoring wireless remote transmission diaphragm gas meter. The high-precision micro-flow monitoring wireless remote transmission diaphragm gas meter comprises a gas meter base meter, a calibration gear, an antenna module, a dual-mode echelette grating counter, an intelligent controller, a battery bin cover, a controller upper cover, a dry battery box and a controller base. The controller base is connected to the surface of the gas meter base meter; the controller upper cover is connected to the controller base; the dual-mode echelette grating counter, the intelligent controller and the dry battery box are fixed between the controller upper cover and the controller base; the battery bin cover is connected to the controller upper cover and corresponds to the dry battery box in position; the calibration gear is in transmission connection with the gas meter base meter; and the dual-mode echelette grating counter is in transmission connection with the calibration gear. According to the high-precision micro-flow monitoring wireless remote transmission membrane type gas meter, tiny leakage of natural gas in households of resident users can be effectively monitored, a gas company is informed in time to carry out on-site maintenance, the gas use safety of residents is improved, and major potential safety hazards are reduced.

Description

technical field [0001] The invention relates to the field of membrane gas meters, in particular to a wireless remote transmission membrane gas meter for high-precision micro-flow monitoring. Background technique [0002] At present, the measurement and sampling accuracy of membrane gas meters commonly used in residents' homes is 0.05m 3 / imp(50L / imp), the sampling point is set on the percentile wheel of the counter, there is a sampling point on the upper and lower sides of the percentile wheel, and each revolution will generate 2 pulse outputs. There are also some products that set the sampling point on the thousandth digit wheel, so that the measurement sampling accuracy can reach 0.005m 3 / imp (5L / imp), the sampling accuracy is improved, but the power consumption of the whole machine is bound to increase significantly. In addition, the reed switch pull-in frequency on the thousandth position will increase by an order of magnitude. The reliability of long-term operation re...

AI Technical Summary

Problems solved by technology

There are also some products that set the sampling point on the thousandth digit wheel, so that the measurement sampling accuracy can reach 0.005m 3 / imp (5L / imp), the sampling accuracy is improved, but the power consumption of the whole machine is bound to increase significantly, and the reed switch pull-in frequency on the thousandth position will increase by an order of magnitude, and the reliability of long-term operation remains to be seen

The above products are still unable to detect some small leaks in time, such as small leaks with a leakage volume of less than 1L / h, it takes a long time to accumulate a signal output, and the gas use in the middle will directly affect the judgment result, and the safety of gas use is not sufficient. Assure

Images