I would like to ask everyone: in a vacuum steam stripper, should the feed be introduced first or the steam first?
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I would like to ask everyone: in a vacuum steam stripper, should the feed be introduced first or the steam first?
Why? Some people say that the cold material should be fed in first, and the heat source should be turned off first when shutting down the system. Is this correct?
This is the operating procedure for starting up and shutting down, and it’s the same for each set of equipment.
This post was last edited by sdwfsgyykai on 2019-12-13 08:02. Feed the material first; add it after operations are running normally. Superheated steam with a temperature of over 350°C should be used for this purpose
Feed the material first, wait until it stabilizes, then turn on the superheated steam
Feed the material first; wait until the atmospheric pressure tower is operating normally, the vacuum level under reduced pressure is stable, and all measurement lines are stable before injecting steam. Steam injection is a means of adjusting quality.
If it cools first and then warms up, there is a heating process; but if it warms up first and then cools down, sudden cooling can occur, which may lead to leaks in the equipment, as well as water hammer effects
First, start the circulation; increase the load on the heating source, reduce the load by removing the heat source, and then shut down. It’s the same principle as driving first and then shifting gears.
Cool first and then heat, just like in a heating furnace