A Gas Turbine Power Plant Is An External Combustion Rotary Machine That Can Convert Steam Heat Energy Into Mechanical Work.

A Gas Turbine Power Plant is an external combustion rotary machine that can convert steam heat energy into mechanical work. After the steam from the boiler enters the Gas Turbine Power Plant, it successively passes through a series of annularly arranged nozzles and moving blades to convert the heat energy of the steam into the mechanical energy of the rotation of the Gas Turbine Power Plant rotor. In Gas Turbine Power Plants, the energy conversion of steam in different ways constitutes Gas Turbine Power Plants with different working principles.

Type edit

There are many types of Gas Turbine Power Plants, and there are various classification methods according to the structure, working principle, thermal performance, use, and number of cylinders.

By structure

There are single-stage Gas Turbine Power Plants and multi-stage Gas Turbine Power Plants; single-cylinder Gas Turbine Power Plants installed in one cylinder at all levels, and multi-cylinder Gas Turbine Power Plants installed in several cylinders at various levels; single-shaft Gas Turbine Power Plants installed on one shaft at all levels, and Double-shaft Gas Turbine Power Plants installed on two parallel shafts at all levels.

According to working principle

There are impulse turbines where steam expands mainly in nozzles (or stationary blades) at all levels; reaction turbines where steam expands in both stationary and moving blades; and the kinetic energy of steam expansion in nozzles is added to several rows of moving blades Speed-class Gas Turbine Power Plant used.

According to thermal characteristics

There are condensing steam type, heating type, back pressure type, steam extraction type and saturated Gas Turbine Power Plant and other types. The steam discharged from the condensing Gas Turbine Power Plant flows into the condenser, and the exhaust pressure is lower than the atmospheric pressure. Therefore, it has good thermal performance and is the most commonly used Gas Turbine Power Plant. Provides heat for production or domestic use, and has a high utilization rate of heat energy; Gas Turbine Power Plants with exhaust pressure greater than atmospheric pressure for back-pressure turbines; steam extraction turbines are Gas Turbine Power Plants that extract steam from the intermediate stage for heating; The steam in the saturated state is used as the new Gas Turbine Power Plant.