Natural gas meter with composite adjustment function and control method thereof

Abstract

The invention discloses a natural gas meter with a composite adjustment function and a control method thereof.The natural gas meter comprises a shell, a thin film driving mechanism and an impeller arearranged in the shell, the thin film driving mechanism drives the impeller to rotate, and the natural gas meter further comprises a composite adjustment metering device which comprises a calculationdisplay device; the calculation display device is connected with a Hall sensor, a pressure detection device and a first temperature detection sensor, a magnet block is fixedly arranged on the impeller, the impeller rotates to apply a signal to the Hall sensor through the magnet block, and the Hall sensor records the volume use amount V1 of natural gas; the pressure detection device and the first temperature detection sensor detect the actual pressure P1 and the actual temperature T1 of the natural gas respectively, and the calculation display device obtains the volume consumption V1, the actual pressure P1 and the actual temperature T1 of the natural gas and converts the volume consumption V1, the actual pressure P1 and the actual temperature T1 into the volume consumption V2 at the standard natural gas pressure P0 and the standard temperature T0. Metering data is adjusted according to the actual pressure and the actual temperature of natural gas, so that detection data of the naturalgas meter is more accurate.

Description

technical field [0001] The invention relates to the technical field of natural gas metering, in particular to a natural gas meter with compound adjustment functions and a control method thereof. 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 ...

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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

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