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Problems with coking wedge flow meters

2016-04-12View Original

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After our company’s coking unit was shut down, the double-flange flow meter was removed, and it was found that the primary valve and the short pipes were completely blocked, with some of the flange diaphragm boxes damaged. What is generally done to such flange instruments after oil processing units are shut down?
Reply #22016-04-13
I’m not very familiar with the petrochemical industry, but for our wedge-type flow meters used in fine chemicals, it is generally necessary to drain and purge the system after it is shut down.
Reply #32016-04-13
What are the typical ranges for viscosity, density, temperature, and flow rate? Is this style more suitable?
Reply #42016-04-13
Both target flowmeters and vortex flowmeters are of poor quality; they are not recommended for use.
Reply #52016-04-13
I didn’t notice this at the time; it turns out to be the same thing after all.
Reply #62016-04-13
How is it installed? Is it an oil washing flow meter?
Reply #72016-04-13
Should the pressure tapping be located above or below the horizontal level of the pipeline?; Is the material supervisor’s area completely blocked? ;
Reply #82016-04-14
Apart from verifying whether it can be measured, a good price is high
Reply #92016-04-14
bg9.png After our company’s coking unit was shut down, the double-flange flow meter was removed, and it was found that the primary valve as well as the short pipes were completely blocked; some of the flange diaphragm boxes were also damaged. What is generally done with such flange instruments after a petroleum processing unit is shut down? I don’t see any useful information in this passage. In chemical production, the issue of blockages is something that is quite common in the field of instrumentation. 1. What principle is used for measurement? (It should be based on the differential pressure principle, but please still explain it; guessing isn’t fun.) 2. What medium is being measured? (Temperature, pressure, viscosity, etc.) 3. How are the on-site measurement instruments configured? (It would be best if photos could be provided)
Reply #102016-04-14
Your pressure tapping point is at a 45° angle upward; in our coal chemical industry, flushing water is used as well

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