Method and device for cleaning mass flowmeter

Abstract

The invention relates to a method and a device for cleaning a mass flowmeter and is characterized in that the method for cleaning the mass flowmeter comprises a dredging working procedure and a subsequent cleaning working procedure, wherein the dredging working procedure comprises a medium-temperature medium-pressure steam source (the temperature is 150 to 175 DEG C, and the pressure is 0.5 to 0.8MPa)-a steam sweeping loop-the mass flowmeter-an outlet pollutant discharging pipe-a cleaning tank, and the cleaning working procedure comprises the cleaning tank (3)-a circulating pump inlet pipe (9)-a circulating pump (12)-a circulating pump outlet pipe (10)-a U-shaped pipe mass flowmeter (1)-an inlet pollutant discharging pipe-the cleaning tank (3). According to the invention, the scrapping of the mass flowmeter due to the loss of a metering function after blockage can be effectively avoided, and the high-precision metering function of the mass flowmeter can be restored within a shorter period of time, thereby the maintenance cost is greatly lowered, the production stability is guaranteed, the device has the advantages of simple structure, safety, environmental protection and the like, and the method and the device have greater popularizing value in the field of industrial metering systems.

Description

technical field [0001] The present invention relates to a method for cleaning a measuring system and its device, in particular, the present invention relates to a method for cleaning a mass flowmeter and its device, more specifically, the present invention relates to a flow tube of a mass flowmeter The unblocking method and its unblocking and flushing unit are particularly aimed at unblocking and cleaning when the flow tube of the mass flowmeter is blocked due to sticky solid blockages. Background technique [0002] A mass flow meter for a measurement system, for example, a Coriolis mass flow meter usually consists of components such as flow tubes, transmitters, and sensors. With this mass flow meter, fluid passes through a U-shaped flow tube, which keeps the flow tube vibrating. [0003] The interaction between the Coriolis force generated by the fluid and the vibration force of the flow tube causes the flow tube to twist, and the twist is proportional to the mass flow rat...

AI Technical Summary

Problems solved by technology

However, according to the experiment, it takes about 3 days to clear the solid asphalt blockage in the straight pipe section, but it is difficult to clear the U-shaped flow tube.

Because, although the solid asphalt here can be dissolved into viscous semi-solid asphalt, it is difficult to completely clean these viscous substances from the U-shaped pipe, even if it takes 15 days, the mass flowmeter cannot be realized. Cleanliness requirements

Therefore, the clogged U-shaped mass flowmeter is dredged by immersion in solvent oil, etc., although a certain effect can be obtained, but it takes a long time and has a certain impact on the detection accuracy

Images