Natural gas flowmeter with adjustable detection caliber

The utility model discloses a natural gas flow meter with an adjustable detection caliber, relates to the technical field of natural gas metering, and aims to solve the problems of single detection caliber and poorer adaptability of the conventional natural gas Roots flow meter. The natural gas flow meter comprises a shell in which two rotating shafts parallel to each other are arranged; a partition plate is further arranged in the shell, the rotating shaft penetrates through the partition plate, the upper portion and the lower portion of the partition plate are each provided with a set of waist wheels, the waist wheels are connected with the rotating shaft, a baffle is arranged below the shell in a penetrating mode, and the side, stretching into the shell, of the baffle abuts against the lower surface of the partition plate. The baffle is arranged on one side of the outer side of the shell and connected with the shell through bolts. 本实用新型公开了一种可调检测口径的天然气流量计，涉及天然气计量的技术领域，本实用新型旨在解决现有的天然气罗茨流量计检测口径单一，适应性较差的问题，本实用