Where are automatic backwash filters used? ? ? ? ? ?
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http://www.wzfeide.com/product/001.jpg This is a question I’m very curious about... The image on the right shows the device, while the one below it provides details. In the petroleum refining industry, automatic backwash filters are used as pre-filters for reactors in processes such as hydrocracking, hydroprocessing, hydrorefining, and hydrodesulfurization. They help to prevent clogging of the catalyst bed, reduce the need for frequent manual switching operations and heavy filter cleaning tasks, avoid unnecessary shutdowns, thereby protecting expensive catalysts and extending the operational life of the equipment, which results in good economic benefits. As mentioned in the introduction above, it is used in units for hydrocracking, hydrogenation, reforming, refining, and hydrodesulfurization. Are these processes similar to each other? What is their main function? ? Those who know, please share. I would be extremely grateful. Our product is one of the filtering devices included in this product
For the pretreatment of hydrorefining feed oil, there are generally two sets, one in operation and one as a backup
We have one set of hydrogenation refining unit. Since it is an \"automatic backwash\" system, I don’t understand why there are two sets on the upper floor – is that really necessary?
For our residue hydrogenation process, there are two series; the flushing process involves both forward and reverse flushing, while in the catalytic cracking section only reverse flushing is used~~
Its main function is to filter out mechanical impurities from the raw material, preventing clogging of the hydrogenation catalyst bed. Automatic backwash filters are generally installed in front of the raw material buffer tanks, and at least two sets are required to ensure that one filter remains in operation while the other is being backwashed, thereby preventing interruptions in the supply of raw materials.
Are there any other places where it’s useful?
Diesel hydrogenation units, delayed coking units, and gasoline hydrogenation units can all be used, primarily to prevent an increase in the differential pressure in fixed-bed reactors.
What are the requirements for filtration accuracy? ? ? That is, the slit
Upstairs, which company do you work for? Is this a tubular backwash filter? Having one as a backup and one in use is enough; N+1 will do just fine
9# Li Yang Yingjun: What does N+1 mean? Could you explain it in more detail?
There are many application areas, but this type of image is mainly used in the oil industry. Automatic filters are also divided into many types, each with different areas of application