Ultrasonic flowmeter probe disassembling and assembling method

Abstract

The invention provides an ultrasonic flowmeter probe disassembling and assembling method. The method comprises the steps that a card board, two screws and two positioning nuts are prepared; three notches are formed in the wide face of one side of the card board at equal intervals, and the full-threaded screws and the positioning nuts are included. The two screws are welded to high pressure water pipes at the two sides of a probe; the card board notches are clamped on the probe and the screws at the two sides. The positioning nuts are loosened, the card board is taken down, a ball valve arranged on the probe is switched on, and a probe rod is pushed up by means of high pressure water. The ball valve is switched off, a connecting nut is loosened, and the probe is taken down to be cleaned or replaced. The card board is reassembled, and then the ball valve is switched on; the two positioning nuts are tightened, the probe is pushed to the working position through the card board, and the connecting nut and a locking nut are tightened. Accordingly, ultrasonic flowmeter probe disassembling and assembling can be conducted online without cutting off water supply, so that the blast furnace staying accident is avoided, the fault is treated in time, the fault treatment time is shortened, the accident loss is reduced, and smooth production is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of liquid automatic measurement, and in particular relates to an online disassembly and assembly method for an ultrasonic flowmeter probe used in pipelines. Background technique [0002] The water measurement equipment of the blast furnace high-pressure water system in an ironworks uses a plug-in ultrasonic flowmeter. The probe of the ultrasonic flowmeter includes signal cables, outlet nuts, lock nuts, connecting nuts, ball valves, connecting seats, probe rods, The sound wedge surface, the probe is fixed on the high-pressure water pipe through connection, and the sound wedge surface at the rear end of the probe rod extends into the high-pressure water pipe. [0003] When the blast furnace is in production, the water pressure in the high-pressure water pipe is about 1 MPa, and the water cannot be cut off for a long time, otherwise there is a hidden danger of burning out the main equipment of the blast furnace...

AI Technical Summary

Problems solved by technology

In the case where the water cannot be stopped, when the probe is damaged or malfunctions, the probe cannot be pulled out because the water pressure is too high, so it cannot be cleaned or replaced

Especially when the liquid is added to the water tank on site, a large number of air bubbles will be generated in the high-pressure water pipe, which will greatly affect the measurement of the probe, cause the measurement system to be inaccurate, and seriously affect the on-site monitoring of the pipeline water volume

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