Sensor combination for natural gas meter

Abstract

The invention discloses a sensor combination for a natural gas meter, which comprises a shell, a film driving mechanism and an impeller are arranged in the shell, and the film driving mechanism drivesthe impeller to rotate; a Hall sensor, a pressure detection device and a first temperature detection sensor are further included, a magnet block is fixedly arranged on the circumference of the impeller, the impeller rotates to apply signals to the Hall sensor through the magnet block, the Hall sensor is used for measuring the number of rotation turns of the impeller and sending the number to a microprocessor, and the microprocessor converts the number into the volume consumption V1 of natural gas. The pressure detection device and the first temperature detection sensor are arranged on the shell and used for detecting the actual pressure P1 and the actual temperature T1 of natural gas in the shell respectively. The sensor combination can detect the actual pressure and the actual temperature of natural gas and is used for adjusting metering data, so that the detection data of the natural gas meter is more accurate.

Description

technical field [0001] The invention relates to the technical field of natural gas metering, in particular to a sensor combination for a natural gas meter. Background technique [0002] The rated pressure of natural gas in existing domestic pipelines is generally 2000PA. The medium pressure of municipal pipelines generally fluctuates between 1500 and 3000PA after the pressure is adjusted by the pressure regulating box of the building. Because the gas company calculates the price of household natural gas based on volume consumption. Yes, the higher the gas supply pressure setting, the greater the gap between supply and sales, which is not good for the gas company; the lower the gas supply pressure setting is, it is not good for home users. If the pressure is too low, it will lead to too long cooking time and increase the gas consumption. [0003] Moreover, since the entire floor is connected to the natural gas company's pipeline through a thick centralized pipeline, when most...

AI Technical Summary

Problems solved by technology

[0007] The defect of the existing technology is: because the gas company calculates the price of household natural gas based on the volume consumption, which is greatly affected by the fluctuation of the above-mentioned pressure factors and temperature factors, resulting in a large difference between the volumetric gas consumption of residents and the actual gas consumption , so that the billing of natural gas consumption is not accurate enough

Images