How about everyone contributing their own experiences to make progress together?
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Please share any shortcomings you have encountered or heard about in your work, so that we can all gain more experience and improve together. What do you think? Let’s start with a few examples: 1. The orifice flow meter is installed after the control valve ； 2. The two butterfly valves on the pipeline, one at each end, are too close to each other, about 10 cm apart ； 3. The distance between the reactor and the frame is only 2 cm ； 4. The flanges of two adjacent high-pressure pipelines are too close together, making it impossible to tighten the bolts ； 5. The pump outlet pressure exceeds the pressure of the equipment at the pump’s outlet ； ……
I don’t know much about the actual issues in the workshop; I’m only responsible for the processing aspect
Then let me ask a question in return: In the actual process control in workshops, is there a significant difference between some operational units and the theory?
When increasing the capacity of the reciprocating compressor, do not close off the second stage completely right away; leave one or two turns open first, then increase the capacity for the first stage. Close the second stage only when the first stage is nearly closed, which helps to avoid sudden increases in air flow that could affect subsequent stages, resulting in a more stable flow rate
1. The orifice plate flow meter is installed in front of the control valve； 2. The two butterfly valves at the beginning and end of the pipeline are too close to each other, about 10 cm apart; this is acceptable, but it makes maintenance difficult. 3. The distance between the reactor and the frame is only 2 cm, which is a design issue that makes maintenance and insulation difficult. 4. The flanges of two adjacent high-pressure pipelines are too close together, making it impossible to tighten the bolts; this is a design issue. 5. The pump outlet pressure may exceed the pressure of the equipment at the pump’s outlet, which could lead to pipe blockage and a reduction in pipe diameter. …… It’s basically a design issue; in fact, the people in the design institutes don’t understand the actual operations on site or the real conditions there. They merely design and manufacture the device so that it can function, but for it to operate properly, numerous minor adjustments are required. I once encountered a university professor who designed a container in a square shape; when it was shown to the manufacturer, they said it wouldn’t work. The professor insisted it would be fine, but in the end a cylindrical version had to be created, which turned into a joke.