Regarding the problem of the steam turbine condenser system, I would like to ask you all.
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This post was last edited by horace8586 on 2018-5-9 17:11 We are using an air-cooled condenser system, which uses a two-stage main air extractor. Why is the first stage air extractor designed to discharge condensate water with a U-shaped pipe, and the second stage uses a trap? What is the difference between the two? Why is it designed like this?
Same, they all go to the upper part of the hydrophobic expansion tank.
Is it possible to ensure that the vacuum degree is not higher than a certain value? When the secondary vacuum pumping capacity is strong, the primary vacuum pump will be bypassed.
It is to form a liquid seal in the U-shaped tube to prevent the gas extracted from the first stage from returning to the condenser, which cannot achieve the purpose of vacuuming. In addition, in operation, the second stage is put into use first and then the first stage is put into operation to establish a liquid seal.
I don't quite understand, how to remove the first level bypass?
If the pressure difference between the first-stage condenser and the system is greater than the U-shaped water column pressure, the first stage will be bypassed. The ability of the first-level draw is relatively weakened.