Turbine backpressure steam
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Dear teachers, I would like to ask: At present, the backpressure steam pressure of the turbine for the 1.4 million tons per year delayed coking rich gas compressor is quite high, reaching around 1.0 MPa, which is quite different from the pressure in the pipeline network. The valve openings are currently set at almost full open, resulting in high consumption of 3.5 steam. Could you help analyze what might be the cause of this?
In that case, the back pressure is high, and some of the energy is wasted.
It’s simple: the turbine design is inadequate, there aren’t enough stages, and the energy of the steam isn’t fully utilized. Theoretically, the number of blade stages should be increased, and the turbine should be designed based on the backpressure.
You’ve come to the wrong section; go to the Technical Department and ask Engineer Su.