Elbow flow meter measuring device capable of achieving isolated flushing

Abstract

The invention discloses an elbow flow meter measuring device capable of achieving isolated flushing. The elbow flow meter measuring device comprises an elbow sensor and a differential pressure transmitter, a first connector is arranged on the inner side of the elbow sensor and connected with a first measuring pipeline, the first measuring pipeline is connected with one end of a first pressure guide pipe through a first shut-off valve, the other end of the first pressure guide pipe is connected with a differential pressure transmitter, the first pressure guide pipe is further connected with a first blow-off pipe three-way connector, the connection point of the first pressure guide pipe and the first blow-off pipe three-way connector is a first three-way connection point, and the first pressure guide pipe is further connected with a first flushing pipe three-way connector. A three-way connection point of the first pressure guide pipe and the first flushing pipe is located between the first shut-off valve and the first three-way connection point, and the first flushing pipe is connected with an outlet of the first isolation flushing pump through the first flushing valve. The elbow flow meter measuring device capable of achieving isolated flushing is suitable for flow measurement of elbow flow meters with corrosive media, high-viscosity media, crystallinity media, meltability media, precipitability media and the like in pipelines, and is simple in structure, good in controllability and high in measurement precision.

Description

technical field [0001] The invention relates to a fluid flow monitoring device, in particular to an elbow flowmeter measuring device capable of isolation and flushing. Background technique [0002] The elbow flowmeter is a flow measuring device that can measure the flow in the pipeline. It measures the flow of the medium in the pipeline by measuring the differential pressure value generated by the positive and negative pressure sides of the elbow sensor through a differential pressure transmitter. When the elbow flow When the meter is used to measure the flow of conventional media (such as water, steam, air, etc.), the positive and negative pressure sides of the differential pressure transmitter are connected to the positive and negative pressure side pressure points of the elbow sensor through the pressure guiding tube. The measured medium in the pipeline is filled, and the measured medium can be directly guided to realize accurate and reliable measurement of the differenti...

AI Technical Summary

Problems solved by technology

When the elbow flowmeter is used in the pipeline to measure the flow of media with corrosiveness, high viscosity, crystallinity, melting, precipitation, etc., if the pressure guide tube of the differential pressure transmitter uses the medium to be measured in the pipeline to directly guide the pressure, Problems such as chemical reaction, solidification, and blockage may occur, resulting in the inability to achieve accurate and reliable measurement of differential pressure, thereby affecting the measurement of medium flow in the pipeline. Flow measurement is a technical problem, so there is an urgent need for a flow measurement device that can measure corrosive, high-viscosity, crystallization, melting, precipitation and other media in the pipeline

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