Why should the superheating control valve be closed when the pressure in the steam main is low?

2011-05-21View Original

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Why should the superheating control valve be closed when the pressure in the steam main is low?

Reply #22011-05-23

Reply to 1# chenzhang0293: When the pressure is too low, the asphalt and anthracene oil from the secondary evaporator and fractionation tower will flow back into the superheated steam pipes, causing blockages in those pipes

Reply #32011-05-23

When the steam pressure is low, flammable and explosive volatile gases may flow back into the steam pipes, which can cause blockages; in severe cases, it may even lead to explosions

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