Steam generator
A steam generator is a system for generating water vapor , the essential component of which is a boiler . In such a system, water is heated and converted into steam.
Steam consumers include generators or turbines in power plants for generating energy , steam engines and turbines (conversion of heat into mechanical energy ), thermal power plants (provision of heat energy) or the chemical and metal industry in general (for heat-consuming processes ). The temperature and pressure of the steam generated are regulated to the values appropriate for the respective steam consumer.
Components of a steam generator are:
- The evaporator for generating the steam
- The superheater , in which the steam is heated to the temperature required by the consumer
- The feed water and air preheater, in which water and combustion air are preheated
- The furnace that generates the heat required for the consumer using fuels such as coal , oil , gas or biomass .
In contrast to a steam generator, water in a hot water system is brought to a temperature above the atmospheric boiling point: T> 100 ° C (p> atm. Pressure).
See also
Steam boiler system which, in addition to the steam generator, also has components such as feed water tanks , induced draft fans , etc.
Laboratory technology
In the laboratory, steam is generated in a steam generator. Steam is required in the laboratory and a. for the so-called steam distillation , a method of material separation.
Individual evidence
- ↑ Handbook of boiler operating technology : power and heat generation in practice and theory ; Helmut Effenberger: Steam generation (VDI book).
- ^ Walter Wittenberger: Chemische Laboratoriumstechnik , Springer-Verlag, Vienna, New York, 7th edition, 1973, pp. 182-183, ISBN 3-211-81116-8 .