Questions about superheated steam production in waste heat boilers
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For flue gas at around 320 degrees, what maximum pressure and temperature of superheated steam can be produced? The waste heat boiler used is a heat pipe type waste heat boiler. To meet this requirement, how should the waste heat boiler be designed? Is it also divided into three parts? Superheater section, saturated steam section, superheated steam section. At present, our waste heat boilers produce saturated steam at 0.6 MPa and around 160 degrees Celsius; now we want to produce superheated steam. How should we modify them, or what kind of design is needed for new waste heat boilers?
The steam produced directly by a boiler can only be saturated steam; to superheat it, one method is to heat the steam, and the other is to reduce its pressure.
Steam heating – can high-temperature flue gas be used as well? How should this be achieved? What to use for the cyclic power? Can it still be achieved using a heat-tube type waste heat boiler?
Won’t a heat pipe prevent an explosion with 320 degrees of flue gas?
For this temperature, a heat-tube waste heat boiler is a good choice. I can send the parameters and prepare a proposal; QQ: 506925142
We also use flue gas at around 300°C, and a two-stage heat pipe boiler (evaporation and superheating stages) is employed to produce superheated steam at 0.1 MPa.
The flue gas temperature is 320 degrees, and the operating temperature of the heat pipe does not exceed 250 degrees; therefore, the heat pipe will not experience any problems
The flue gas volume is 250,000 standard cubic meters, the temperature is 320 degrees; do you want to produce superheated steam at 1.6 MPa? Is it feasible? How much steam will be generated, and what will be the temperature of the steam? Thank you
Thank you for asking and answering, it gave me some hints.
It should be calculated based on the process. The components of the flue gas, their proportions, heat capacity (specific heat), or heat enthalpy, etc., are used to calculate the total heat content of the flue gas. Redesign the boiler. Boilers of different types have varying efficiencies, and steel materials of different kinds also have different heat transfer coefficients. Therefore, comprehensive design is required. It can’t be explained in just one or two sentences.