High-speed pressure relief
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This post was last edited by liuquan1100 on 2017-12-29 at 14:26. If the high-speed pressure relief valve for hydrocracking is open, can it be closed if the reaction temperature can be controlled? If the valve cannot be closed, until when must the pressure be allowed to drop before it can be closed? And what should be done then?
Intermittent pressure release was performed, and the temperature was brought under control.
The purpose of pressure relief is to control temperature; if the temperature can be kept under control, there is no need for pressure relief. Apart from wasting energy, rapid pressure relief is also harmful to the equipment!
2.1 The pressure relief function should be equipped with a switch; our model 2.1 features a system-level manual control that requires someone to press it manually to activate, and the manual control can be reset to turn it off afterward. . .
You can take a look at the interlock of the pressure relief valve; it opens as a result of the interlock being triggered. First, find out what caused the trigger, and then you’ll know when it will close
Agree with what was said on floor 2. You need to first understand the purpose of pressure relief – why is it being done? If pressure relief occurs due to overheating, then it’s sufficient to control the temperature and shut it down. If it’s caused by interlocks related to devices such as hydrogen circulation compressors, then the interlock issue must be resolved before operation can resume:D
Once the temperature is under control, it can be turned off; chain reset will then take effect