Shenyang Getai Hydropower Equipment Co., Ltd.

Application Range of Turbines

Dec. 28, 2020

Hydraulic turbines are dynamic machines that convert the energy of water flow into rotational mechanical energy. It's the turbine machinery of fluid machinery, and Kaplan Turbines are very common. As early as 100 BC, China was already a prototype of a water turbine used to pump and drive food processing equipment. Most modern hydraulic turbines are installed in hydroelectric plants to drive a generator to generate electricity. In a hydroelectric plant, water from an upstream reservoir is channelled through a pipe to a turbine, which turns a turbine wheel and drives a generator to generate electricity. The final water is discharged downstream through the exhaust pipe. The higher the head, the higher the flow rate and the higher the turbine output power. So, do you know where modern turbines are mainly used? Francis Turbine Design will tell you in the future.

Water Turbines are mainly used in pumped storage power stations. When the load of the power system is lower than the base load, it can be used as a water pump to pump water from the downstream reservoir to the upstream reservoir to store energy in the form of potential energy. It can be used as a turbine when the system load is higher than the base load. , sending power to regulate peak load. Therefore, a pure pumped storage power station cannot increase the power of the power system, but it can improve the economic efficiency of the thermal power unit and the overall efficiency of the power system. Since the 1950s, pumped-type accumulators have been widely concerned and developed rapidly in the world.

Kaplan Turbines

Kaplan Turbines

Most early development or large-capacity pumped-storage units used a three-engine type, a generator motor, turbine and pump connected in series. The advantage is that the turbine and pump are designed separately to be more efficient, the unit rotates in the same direction when generating and pumping water, and can be quickly converted from generating to pumping, or from pumping to water. To generate electricity. At the same time, a turbine can be used to start the equipment. Its disadvantages are high cost and heavy investment in power plants.

The blades of the turbine runner of the oblique flow pump can be rotated, and still have good operation performance when the head and load change. However, due to its hydraulic characteristics and material strength, by the early 1980s, its maximum lift was only 136.2 meters (Japan's Takagen First Power Station). For higher head, a mixed-flow pump turbine is required.

The pumped storage plant has two upper and lower reservoirs. While storing the same amount of energy, elevating the elevator reduces storage capacity, increases unit speed, and reduces engineering costs. Therefore, the high head energy storage power station above 300 meters develops rapidly. The world's largest mixed-flow pump turbine is installed at Bayan Basta power station in Yugoslavia. It has a unit power of 315 megawatts, a turbine head of 600.3 meters, a pump head of 623.1 meters, and a speed of 428.6 RPM. Put into production this year. Since the 20th century, hydroelectric generating units have developed towards high parameters and large capacity. With the increase of thermal power capacity in the power system and the development of nuclear power, in order to solve the reasonable peak regulation problem, in addition to vigorously developing or expanding large power plants, all countries in the world are actively building pumped storage power stations. Large power stations and pump turbines in large water supply systems have been developed rapidly.

In order to make full use of various hydraulic resources, tidal flats, low water levels and even flat plain rivers have attracted extensive attention, which has led to the rapid development of tubular turbines and other small units.

The above is about the application scope of the turbine, I hope to reassure everyone. If you are interested in turbines, please contact us. We produce Pelton Turbines, Kaplan turbines and so on. We trust that the quality will meet your requirements. Welcome to buy.

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