"Hydraulic generator set review", "Hydropower plant production personnel technical question and answer series", etc.
1. “Hydraulic Power Plant Maintenance” is a branch of the “Hydropower Plant Maintenance Technology Series”. The book explains the maintenance and debugging technology of hydroelectric generator sets in detail, so the maintenance booklet includes "Water". Power Plant Maintenance Technology Series ". Turbine Generator Set Maintenance".
2. The “Technical Question and Answer Series for Hydropower Plant Production Personnel” describes in detail the various professional knowledge required for turbine generator maintenance workers in hydropower plants in the form of questions and answers. the maintenance booklet includes the “Questions and Answers Seriestechniques on the production personnel of hydroelectric power stations”, etc.
Why axial flow blade turbine generator can change the power output through the blades
Basic principle: In hydraulic turbine, the flow of water passes through the volute bypass path The inlet water guiding mechanism converts the kinetic energy of the liquid into static pressure energy, and then converts the static pressure energy into the kinetic energy of the rotor through the blades .
The runner is coupled to the generator rotor via the main shaft, driving the rotor to rotate and cutting off the generator stator magnetic coil. It uses the principle of electromagnetic induction to generate high voltage electricity in the generator coil. , then increases the voltage across the transformer for transmission. The cabling exports energy to the network and water flows axially out of the channel.
TheLarge and medium-sized hydraulic turbines generally use metal volutes, the main function of which is to guide the flow of fluid and convert the kinetic energy of the liquid into static pressure energy. The tilt angle of the movable guide vanes in the water guiding mechanism is adjustable, and its main function is to adjust the flow rate.
Hydraulic generator refers to a generator that uses a hydraulic turbine as the prime mover to convert water energy into electrical energy. As water flows through the turbine, the energy of the water is converted into mechanical energy. The rotating shaft of the turbine drives the generator rotor, which converts mechanical energy into electrical energy and produces it. It is the main electrical equipment for producing electrical energy in hydroelectric power stations.
The blades of the axial flow blade turbine can changeer their placement angle during shutdown or operation. Changing the angle of the blade changes the flow rate under the corresponding water height, which means changing the power output. When changing the blade angle, the corresponding efficiency also changes slightly.