Introduction
Heat-Type Steam Turbine
The heat-type steam turbine is a kind of energy conversion system which utilizes the steam as the working medium to obtain the mechanical work, and then use the mechanical work to obtain the rotation and obtain electricity. It is widely used in power plants and is one of the most important and widely used forms of energy conversion system.
Principle and Structure of Heat-type Steam Turbine
The heat-type steam turbine is composed of a steam turbine rotor, a steam cylinder, a turbine inlet and exhaust valve, a condenser and high-pressure, intermediate-pressure and low-pressure sections. After working, the steam at high temperature and pressure enters the high-pressure section through the pipe, and then flows into the middle and low pressure sections, slowly becoming the same pressure. After the steam flows through the stage, the work output is obtained. The steam is then discharged to the condenser and then condensed into water, which is then recycled or used in other places.
Working Process of Heat-type Steam Turbine
In the normal operation process of the heat-type steam turbine, the steam generated in the boiler is used as the working medium. It is raised to a certain pressure and temperature through the steam pipe and then enters the turbine. Under the action of full pressure and temperature of the steam, the runner of the steam turbine rotates and converts the energy of the steam into mechanical energy. At this time, the steam has a certain velocity energy, but the energy of the pressure does not change. When the steam passes through the steam turbine stage, the energy of the steam is continuously developed by the aircraft blade. The steam energy is gradually converted into kinetic energy and pressure energy, which drive the runner of the steam turbine to rotate under the pressure and the impulse action, which is converted into mechanical energy. After the steam is output from the last stage, it enters the condenser, and then the condensed steam returns to the steam generator again and becomes the working medium of the steam turbine.
Advantages of Heat-type Steam Turbine
1. High working efficiency. The heat-type steam turbine is able to fully utilize the energy of the steam, and it has a very high energy conversion efficiency. The excess energy in the steam energy can be converted into mechnical energy, so that the whole system is more efficient.
2. Low cost. Heat-type steam turbines are relatively cheap than other forms of energy conversion systems. They are low-cost and easy to maintain.
3. High adaptability. Since heat-type steam turbines only require steam as the working medium, they can be used in a variety of different environments.
Conclusion
Heat-type steam turbines are widely used in power plants. They are reliable and have high energy conversion efficiency and low cost. With their high adaptability, they are suitable for many different applications.
