Device venting problem
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Please ask whether all the vents on the device need to be opened after the shutdown and technical overhaul and purge are completed.
Generally not open, depending on the specific situation, we don’t know
In a general sense, it needs to be opened, but I don’t know what kind of equipment you are talking about and what medium is used for purging. Can you be more specific?
It all depends on your actual situation. Do you need to modify it or stop working to wait for materials? You can’t say for sure whether it will be turned on or off.
For long-term use and long-term benefits, the principle is open.
The vent used on the device does not need to be opened after the shutdown and technical overhaul and purge are completed. The vent valve is only opened when the equipment is overpressured, ensuring the normal pressure of the equipment. If the vent valve is opened, do you ensure the normal pressure of the equipment? If the pressure is guaranteed, it means it is too wasteful and increases energy consumption, so there is no need to open the device under normal circumstances. :handshake
The purpose of opening the vent valve is to purge it clean, and to purge it clean is to make it safe to use fire or work in a limited space. Therefore, if you use fire in the device or enter a limited space, it is best to open it all, and use a blind plate to separate it from other systems after purging!
It depends on the specific situation. If a fire is required for maintenance, it is better to open it. If there is a catalyst or the like that needs to be sealed, it must not be opened.
Why! There are so many situations!
It is generally not necessary to open all the vents after the shutdown, technical overhaul, maintenance and purge is completed. If there is an abnormality, open them again.
This should be determined based on the specific situation. In general, on-site venting does not need to be opened.
Generally not open. If the work is stopped for maintenance, a piece of equipment needs to be opened if it catches fire. If the work is shut down for a long time, it is best to replace it with nitrogen and then seal it to reduce equipment corrosion.
Agree, our factory basically does this too
It should be turned off. Turn it on when in use. There is no need to keep it on.
Our factory has the following two situations for this situation:: First, because maintenance requires purging, all purged systems should be opened after purging. ； The second is to purge before shutting down the plant in winter. After purging, nitrogen is used to stabilize the pressure.