Double flange level fault and treatment methods

A, double flanged liquid level gauge display on the high side and the minute fluctuations.

installation location: atmospheric tank

failure phenomenon: instrument set up after the initial display is normal, liquid level changes biggish error occurs, static liquid level at the time showed fluctuations.

hazards: may cause waste discharge or empty cans or impact the production.

the cause of the problem analysis: 1, guide pressure pipe ( Capillary) May be leaked. 2, medium is too thick. 3, tanks and exhaust.

analysis points: level gauge can't jam, emphatically analyzed the level itself and the dielectric properties, in addition to consider environmental impacts.

check processing result: by analyzing the basic equipment and media influence, through the level interval judgment it is sensitive to temperature fluctuations, thus may be canned the abnormal pressure media guide, capillary has space. Remove the suction flange to under observation for a period of time, have improved, so as to determine for negative pressure capillary wind gap. After the troubleshooting of the demolition of the capillary.

tip: if the canned not normal is the positive pressure side, the fault cannot be ruled out, can only replace the transmitter.

2, double flanged liquid level meter wide fluctuations.

installation location: carbon dioxide absorption tower.

failure phenomenon: liquid level display frequently between zero and a relatively fixed value fluctuates up and down.

harm: properly adjust, prone to mixes up and overpressure explosion.

the cause of the problem analysis: lower suction flange equipment packing appear congestion fluid, causing negative pressure side frequent squeezes gas liquid two phase or solution space.

processing: open clogged and find out the reason, prevent again.

note: 1, equipment structure and process, before and after 2, understand the production condition of nearly a period of time. 3, to combine scientific analysis and data calculation, be convincing.