Double flange level gauge failure analysis and processing method:
First, the double flange level gauge fluctuates greatly.
Installation location: CO2 absorption tower.
Symptom: The liquid level display frequently fluctuates between zero and a relatively fixed value.
Hazard: can not be properly adjusted, prone to string gas and overpressure explosion.
Analysis of the cause of the failure: The plugging of the lower equipment of the negative pressure flange causes care solution, causing frequent occurrence of gas-liquid two-phase or solution space on the negative pressure side.
Handling: Unblock and find out the reason to prevent it from reappearing.
Tips: 1, understand the structure of the equipment and before and after the process, 2, to understand the changes in production conditions in recent time. 3, to combine scientific analysis and data calculations to make judgments, to be persuasive.
Second, the double flange level gauge shows high and time fluctuates.
Installation location: Atmospheric pressure tank failure phenomenon: After the meter is set up, it shows normal at the initial stage, when the liquid level changes, there will be a large error, and the static liquid surface shows fluctuations during the hours.
Hazard: May cause spillage or empty cans that cause waste or affect production.
Failure Analysis: 1. The pressure tube (capillary tube) may leak. 2, the media is too thick. 3, the tank exhaust is not smooth.
Analysis points: Impossible blockage of the level gauge, analysis of the level gauge itself and the nature of the medium, taking into account the environmental impact.
Check the processing results: Through the analysis of the basic elimination of equipment and media effects, through the fluctuation of the liquid level scoring period to determine its sensitivity to temperature, and thus think that the tank may be the guide pressure medium is not normal, capillary gap. Moving the negative pressure flange to the bottom for a period of time has improved, and it is determined that the negative pressure capillary has an air gap. Remove the capillary after troubleshooting.
Tip: If the canned side is not on the positive pressure side, this fault cannot be eliminated and the transmitter can be replaced intelligently.
First, the double flange level gauge fluctuates greatly.
Installation location: CO2 absorption tower.
Symptom: The liquid level display frequently fluctuates between zero and a relatively fixed value.
Hazard: can not be properly adjusted, prone to string gas and overpressure explosion.
Analysis of the cause of the failure: The plugging of the lower equipment of the negative pressure flange causes care solution, causing frequent occurrence of gas-liquid two-phase or solution space on the negative pressure side.
Handling: Unblock and find out the reason to prevent it from reappearing.
Tips: 1, understand the structure of the equipment and before and after the process, 2, to understand the changes in production conditions in recent time. 3, to combine scientific analysis and data calculations to make judgments, to be persuasive.
Second, the double flange level gauge shows high and time fluctuates.
Installation location: Atmospheric pressure tank failure phenomenon: After the meter is set up, it shows normal at the initial stage, when the liquid level changes, there will be a large error, and the static liquid surface shows fluctuations during the hours.
Hazard: May cause spillage or empty cans that cause waste or affect production.
Failure Analysis: 1. The pressure tube (capillary tube) may leak. 2, the media is too thick. 3, the tank exhaust is not smooth.
Analysis points: Impossible blockage of the level gauge, analysis of the level gauge itself and the nature of the medium, taking into account the environmental impact.
Check the processing results: Through the analysis of the basic elimination of equipment and media effects, through the fluctuation of the liquid level scoring period to determine its sensitivity to temperature, and thus think that the tank may be the guide pressure medium is not normal, capillary gap. Moving the negative pressure flange to the bottom for a period of time has improved, and it is determined that the negative pressure capillary has an air gap. Remove the capillary after troubleshooting.
Tip: If the canned side is not on the positive pressure side, this fault cannot be eliminated and the transmitter can be replaced intelligently.
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