What is the thermal power plant for?

A thermal power plant is a thermal power plant used to supply heat to the city. The main working principle is to use the hot water generated by thermal power plants to reheat and then heat.

Thermal power plant refers to a thermal power plant that uses the extraction or exhaust of steam turbine to provide heat for users while generating electricity. The main working principle is to use the hot water generated by thermal power plants to heat up after reheating.

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operating characteristic

The operation characteristics of cogeneration thermal power plant are related to many factors, such as heat load characteristics, the form of heating units, grid-connected characteristics and so on.

In a thermal power plant equipped with a back pressure heating unit, its operation features are as follows:

(1) The generation of heat and electricity is interdependent and cannot be adjusted independently. Generally speaking, the power load is adjusted according to the heat load requirements.

(2) When the heat load changes, the power also changes, so it is difficult to meet the requirements of heat load and electric load at the same time. When the power load cannot be met, it is necessary to rely on the compensation ability of the power system to bear the power shortage generated by the thermal power plant.

In a thermal power plant equipped with steam extraction and condensing heating units, since the units are equivalent to the combination of back pressure units and condensing units, their operating characteristics are as follows:

① There is a certain degree of freedom in thermoelectric production, and the thermoelectric load can be adjusted independently within the specified range. Therefore, it has great adaptability to the changes of heat load and electric load.

(2) The double extraction steam heating unit has a wider range of independent adjustment between industrial heat, heating and electric load, so it is more suitable for the changes of heat and electric load.

In a thermal power plant equipped with back pressure and steam extraction heating units, its operation characteristics are that the back pressure unit is put into operation during heating in winter, the steam extraction unit is put into operation in summer, and the back pressure unit is stopped. This can improve the operation economy of thermal power plants.

In a thermal power plant equipped with extraction steam heating units and industrial boilers, its operating characteristics are not only the operation characteristics of extraction steam heating units, but also the industrial boilers can be put into operation to meet the needs of heat load peaks. This will increase the benefits of cogeneration and central heating.

Back pressure heating units and industrial boilers are generally used in factory-owned thermal power plants. Their operation characteristics are: back pressure units are used for a long time in a year to meet the thermal load and electrical load of the factory, and they are put into operation in industrial boilers when the thermal load peaks. If the power load cannot be met at this time, it will be compensated by the compensation capacity of the power system.

Baidu encyclopedia-thermal power plant