What is the function of a vacuum and pressure cut-off valve?
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In a vacuum distillation unit, when crude oil enters the heat exchange process, what is the purpose of the shut-off valve installed on the crude oil side?
Emergency shutdown – that’s necessary, right? And also blind flanges, right?
Emergency shutdown – this is essential
The heat exchanger of the unit has caught fire; people must not approach it, and the feed supply should be shut off immediately.
The SIS instrument safety system is required for emergency shutdown.
What was said upstairs is correct; the SIS system uses emergency shutdown of the feedstock.
First, on the crude oil side, a control valve is typically used to regulate the flow rate of crude oil in each channel; this helps to adjust the heat exchange temperature and improve the efficiency of heat exchange. Second, within the device, shut-off valves are installed, and emergency shutdown buttons are usually placed in safe locations so that we can stop the flow of material from those locations in case of danger