Differential pressure type adjustable flow meter special for natural gas

Abstract

The invention discloses a differential pressure type adjustable flow meter special for natural gas in the technical field of flow meters. The adjustable flow meter comprises a measuring steel pipe, adifferential pressure transmitter and a flow meter body, wherein a connecting plate is arranged at the upper end of the differential pressure transmitter, connecting pipes are arranged on the two sides of the upper end of the measuring steel pipe, and the upper ends of the outer sides of the connecting pipes are in threaded connection with first nuts; second nuts are installed on the upper sides of the first nuts, and a clamping head is installed at the top of the flow meter body; the left side and the right side of the clamping head are in threaded connection with clamping rings, and groovesare formed in the circumferences of the front surfaces of the clamping rings; bolts are arranged in the middle of the lower ends of the front and back sides of the flow meter body. The differential pressure type adjustable flow meter special for the natural gas is reasonable in structural design; the clamping head is additionally arranged, and the grooves in the clamping rings are used so that quick clamping and installing can be achieved, the flow meter can be conveniently repaired and detached by workers, the labor intensity of the workers is reduced, and the working efficiency of the workers is improved.

Description

technical field [0001] The invention relates to the technical field of flowmeters, in particular to a differential pressure adjustable flowmeter for natural gas. Background technique [0002] Adjusting flowmeter is a revolutionary differential pressure flowmeter. Its working principle is the same as other differential pressure flowmeters. It is based on the principle of energy conversion in a sealed pipeline: in the case of an ideal fluid, the flow in the pipeline is equal to The square root of the differential pressure is proportional; the measured differential pressure value can be used to calculate the flow in the pipeline according to the Bernoulli equation. The adjustable flow sensor is a multi-hole disc throttle rectifier installed on the cross-section of the pipeline. The size and distribution of each hole is customized based on special formulas and test data, called function holes. When the fluid passes through the function hole of the disc, the fluid will be balanc...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special differential pressure adjustable flowmeter for natural gas, so as to solve the problem that it cannot be quickly disassembled and installed during the use process and is not convenient for staff to maintain.

Images