There is an existing 2.5 MPa steam boiler with a steam usage pressure of 0.7–1.0 MPa; how should the pressure be adjusted?
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According to the drawings provided by the design institute, the pressure at the steam drum outlet is 2.5 MPa, but the pressure required at the point where the steam is used is only 0.7–1.0 MPa. What should be done?
The steam pressure can be reduced using a temperature and pressure reducer, but it is best to make full use of the thermal energy of the 2.5 Mpa steam
Aren’t these things that the design institute should worry about? Pressure valves or heat pumps should be sufficient for this purpose, right?
Have I never heard of something called a temperature and pressure reducer?
The steam outlet is equipped with a temperature and pressure reducer; then I wonder why a boiler with such high pressure is used to produce steam at such a low pressure
It’s sufficient to control the steam output pressure of the boiler at 1.0 MPa; the pressure in the steam distribution cylinder is also just the maximum pressure, and there’s no rule stating that it can’t be lower.
Upstairs, high pressure is used to control the flue gas outlet temperature; if the boiler pressure is 1.0 MPa, the temperature at the outlet of the boiler flue gas heater can drop to the dew point, resulting in dew point corrosion.
Depending on the steam parameters you need, a temperature and pressure reduction device can be added for adjustment