Application of Linear Displacement Sensor in Water Turbine
Application of Linear Displacement Sensor in Water Turbine
The equipment requirements for modern large-scale hydropower plants are quite strict, and currently, intelligent monitoring and management are basically required for some large hydropower plants in China. Intelligent monitoring and management require the selection of higher-level management devices to operate, where sensors are one of the most important monitoring devices for hydropower plants. In the construction of a large hydropower plant, people need to have high requirements for sensors in order to improve overall efficiency and equipment reliability.
Hydroelectric power generation is a complex process. In order to generate stable current, the water turbine must rely on a stable water flow rate. Among them, the linear displacement sensor plays a decisive role in controlling the water flow rate. Water turbines equipped with linear displacement sensors can ensure the sustainable development of hydraulic power by selecting water sources with beautiful environments, water level differences, and sustainable blowouts. There are several very important requirements for choosing a linear displacement position sensor here: firstly, high reliability and strong anti-interference ability. There are quite a few such devices in hydropower plants, so the interference of electromagnetic voltage and other factors on sensors must be very small in order to achieve accurate measurement. The second requirement is that sensors must meet the requirements of accuracy and speed, and be easy to use and maintain, suitable for the special environment of power plants. In practical work, due to the harsh environment of the four guide bearings of the hydroelectric generator unit, platinum resistance wire breakage often occurs. Therefore, special protection is needed for the root wire of the platinum resistance to prevent impurities in the oil tank from continuously impacting it during the rotation of the generator unit.
Nowadays, domestically produced displacement sensors also have the characteristic of high precision, which can provide a precision of μ m. It can detect the stroke of the hydraulic cylinder through analog output to activate the control valve, achieving precise control of the guide vanes. By measuring the water level in the waterway, the guide vanes are precisely controlled to ensure a constant water level. With displacement sensors, the power generation of hydroelectric power plants can be effectively increased, and the corresponding increase in power will greatly enhance the power generation of hydroelectric power. The application of sensors in hydropower plants is still constantly improving. With the development of sensors and the improvement of scientific and technological levels, more and better sensors will continue to emerge, thereby further improving the automation level of power plants.