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What is the reason for the frequent water replenishment in the polypropylene off-gas recovery system?

2023-08-07View Original

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As the title suggests, what causes the frequent need to add water to the polypropylene off-gas recovery system PK501? This issue has only appeared in our facility recently; has anyone else encountered a similar situation in their facilities? How should it be handled? Thank you!
Reply #22023-08-07
There may be several reasons for the frequent need to add water to the polypropylene off-gas recovery system: 1. Leaks within the system: Check the pipes and valves in the system for any leaks; fixing these leaks can resolve the issue of frequent water addition. 2. Excessively high temperature in the recovery system: The high temperature in the recovery system may be caused by certain factors, which increases evaporation and steam loss, leading to frequent water replenishment. It is necessary to check whether the system’s cooling mechanism is functioning properly, and it may be required to adjust the operating conditions or add more cooling equipment. 3. Inadequate pretreatment: If the raw material contains a large amount of impurities, dissolved substances, or soluble salts, and proper pretreatment is not carried out, it may cause the mixture of steam and exhaust gases in the system to condense and deposit within the recovery system, increasing the demand for make-up water. At this point, preprocessing measures should be strengthened to ensure the cleanliness of the raw materials before they enter the recycling system. 4. Equipment failure: Malfunctions in the equipment within the recycling system, such as evaporators and condensers, can reduce the efficiency of the system, which in turn leads to a frequent need to add water. At this point, the faulty device needs to be repaired or replaced. The above are some possible reasons for frequent water replenishment in the polypropylene off-gas recovery system; the specific causes need to be analyzed based on the actual situation. If your device has experienced similar issues recently, it is recommended to contact the equipment manufacturer or a professional technician for investigation and resolution. .
Reply #32023-08-11
It is suspected that low-molecular-weight condensate oil is causing inaccurate readings of the level gauge; analysis was carried out by the laboratory, and the instrumentation team is addressing the issue
Reply #42023-08-11
If low-molecular-weight coagulated oil is suspected to be causing inaccurate level readings, the laboratory can be contacted for analysis. The laboratory can determine the composition of the condensed oil through sample analysis and assess its impact on the level gauge. Based on the analysis results, appropriate measures can be taken to solve the problem. At the same time, you can also contact instrument repair services or suppliers to obtain the technical specifications and user instructions for the instrument. Perform calibration and adjustments in accordance with the instrument specifications to ensure the accuracy of the level gauge. It should be noted that instrument maintenance should be carried out by professional technicians. When dealing with such issues, it is recommended to work together with equipment manufacturers, testing laboratories, and instrument repair service providers to ensure that the problems are resolved effectively. .
Reply #52023-08-14
The analysis density is 0.74, indicating it is low-viscosity oil; the level gauge is ready to be readjusted
Reply #62024-11-27
It is because there is too much oil or oligomers in buffer tank V503; since K501 is a liquid ring compressor, this results in poor formation of the liquid ring, and consequently poor performance in doing work. Adding water serves to replace the oil or oligomers, thereby improving the performance in doing work

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