Flow meter for crude argon entering the refined argon tower
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The flow rate of crude argon into the refined argon column shows a gradual decrease every two days. What is the reason? How to handle it? Seeking help from experts. Thank you.
Flowmeters are designed with temperature and pressure compensation. When this phenomenon you mentioned occurs, first check the distillation conditions in the crude argon column – whether there are any changes in the process, as well as the pressure and resistance values, along with the pressure and resistance conditions in that column ； Whether it changes or not. If there are no issues with the process, check the flowmeter differential pressure transmitter again and calibrate it.
Compare the pressures of the crude argon two-tower and the refined argon tower to first determine whether there is a problem with the flow meter. After resolving any issues with the flow meter, check for problems related to the nitrogen plug, the return gas from the argon tank, as well as the liquid nitrogen supply for the refined argon condenser and the gaseous nitrogen supply for the refined argon evaporator~~
The last edit to this post was made by hait3202843 on 2016-3-31 08:23: \"Regarding the distillation conditions in the crude argon tower, are there any changes in the process? What about the resistance, the pressure of the argon leaving the tower during the process, as well as the conditions and pressures in the refined argon tower?\"； Whether it changes” —— if so, the traffic volume should vary from high to low. It is now declining slowly. When the differential pressure transmitter of the flow meter had its pipeline cleaned, it showed a reading again, but the value dropped again after a couple of days. It still hasn’t been solved.
Whatever happens? Will it return to normal on its own? Does the curve have significant burrs, or is it smooth?
The curve has significant burrs. It will not recover on its own.
Has the V705 valve been inspected? ~~
This post was last edited by hait3202843 on 2016-4-2 at 11:19. Which valve does V705 refer to?