Please pay attention; it’s about the issue of medium-pressure steam temperature
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The required superheating temperature for medium-pressure steam is 450 degrees, but after the recent technical upgrades to the plant, the temperature in the steam superheating section has reached around 470 degrees. What are the consequences of such a high superheated steam temperature? Part of our current steam is used to power the hydrogen production equipment, while another part is supplied to the steam turbines! Seek advice from fellow sea lovers!
I work in steam temperature and pressure reduction; feel free to contact me if you need any help
Excessively high steam temperature increases energy consumption. In the end, it turns into condensed water and still needs to be cooled down.
It depends on the design temperature of the equipment and the turbine; generally, turbines are not designed for such high temperatures
How much pressure of steam? The saturation temperature at 4.0 MPa is only 250°C; too high a superheat level also results in fuel waste, so a desuperheater should be used to lower the temperature
There is a temperature reducer; it deals with the medium-pressure output from the hydrogen production converter, and it’s also necessary to maintain the temperature at the outlet of the converter. We recently replaced the steam superheating section, and the heat exchange efficiency is excellent! The control valve and the bypass of the temperature reducer are both fully open, yet the temperature remains around 470 degrees
The temperature on the turbine side won’t be high; the steam produced there mixes with external steam before being sent to the turbine
I’m seeking some guidance. Also, what should be the maximum temperature of the medium-pressure superheated steam? Are there any specific limits?
Our medium pressure is 3.5 Mpa. Is there a limit for the superheat temperature? What should it not exceed?