What are the applications of power facility accessories in the power generation process

       The application of power facility accessories in the power generation process varies depending on the type of power generation (thermal, hydro, photovoltaic, wind power, nuclear power, etc.). As an important component of the core equipment, they directly affect the efficiency, stability, and safety of power generation. Below are detailed application scenarios for different types of power generation:
thermal power generation
       Thermal power generation is the traditional mainstream power generation method, and its accessories mainly serve the three core equipment of boilers, turbines, and generators, covering the entire process of energy conversion:
1. Boiler system accessories
       Superheater, economizer, air preheater: The superheater heats saturated steam into high-temperature superheated steam, improving the efficiency of the steam turbine; The economizer utilizes the waste heat of flue gas to heat the water supply and reduce the exhaust temperature; The air preheater heats the furnace inlet air, promotes full combustion of fuel, and jointly improves the thermal efficiency of the boiler.
       Safety valve, water level gauge, burner: Safety valve is the defense line for boiler overpressure protection, preventing explosion accidents; Real time monitoring of water level by water level gauge to avoid water shortage or full water faults; The burner controls fuel injection and mixing to improve combustion efficiency and reduce pollutant emissions.
2. Steam turbine system accessories
       Governor, hydraulic engine, bearings: The governor regulates the speed of the turbine to stabilize the power generation frequency; The hydraulic engine serves as the actuator to control the opening of the turbine valves; Bearings reduce rotor rotational friction and ensure high-speed and stable operation of the steam turbine.
3. Generator system accessories
       Exciter and cooler: The exciter provides excitation current to the generator and regulates the output voltage; Coolers (such as tube coolers) cool the stator and rotor of the generator to prevent equipment damage due to overheating.
hydropower
       Hydroelectric power relies on the conversion of water flow potential energy into mechanical energy, and the accessories are mainly suitable for hydro generator sets and hydraulic facilities:
1. Water turbine generator accessories
       Bearings and seals: reduce friction on the turbine shaft, prevent water leakage, and ensure stable operation of the unit in high-pressure underwater environments.
       Speed control system accessories: such as speed controllers, hydraulic valve groups, regulating the inlet flow of water turbines, adapting to changes in incoming water, and stabilizing power generation.
2. Hydraulic facility accessories
       Accessories for hydropower station gate equipment, such as gate seals and gear sets for opening and closing machines, control the inflow of water into the reservoir and ensure stable water flow for turbine operation.
photovoltaic power generation
       Photovoltaic power generation is an important form of new energy generation, and accessories focus on the collection, conversion, and drive of electrical energy
1. Photovoltaic module support and adjustment accessories
       Tracking bracket accessories: such as drive rods, connecting rods, bearings. Single axis/dual axis tracking brackets adjust the angle of the photovoltaic panel and receive solar energy through these accessories.
       Fixed bracket accessories: such as bolts and connectors, used to fix photovoltaic modules and adapt to installation requirements in different terrains (deserts, roofs, etc.).
2. Electrical energy conversion and drive accessories
       Cold shrink cable terminals and intermediate joints: such as 3M ™ 1.8/3kV cold shrink cable terminal, realizing cable connection between photovoltaic combiner box and inverter, inverter and transformer, ensuring stable drive of electrical energy after DC to AC conversion.
       Copper soft connection: Ω - shaped tin plated braided soft connection is suitable for the spatial layout of photovoltaic cabinets, releasing the stress caused by equipment displacement and avoiding the breakage of conductive components.
wind power generation
       Wind power generation relies on wind energy to drive the rotation of wind turbines, and accessories need to adapt to complex outdoor environments to ensure long-term operation of the unit
1. Fan nacelle accessories
       Copper soft connection: segmented pressure welded copper wire soft connection, multi-layer tinned copper braided wire soft connection, suitable for the installation requirements of fan busbar system, with high flexibility and high current overload capacity, while waterproof against steam intrusion, ensuring stable electrical performance.
       Cabin transformer accessories: such as insulation components, cooling fans, regulating fan output voltage to prevent transformer overheating.
2. Drive and protective accessories
       Cold shrink cable accessories: 3M ™ The 1kV cable cold shrink terminal and 35kV cable cold shrink intermediate joint are used to connect the low-voltage cables inside the wind turbine tower with the box type substation and booster station, adapting to the outdoor and high-altitude environment of the wind farm.
       Power tape: 77 # fireproof tape, 51 # anti-corrosion and wear-resistant tape, 2228 # waterproof tape, used for fire prevention, wear resistance, and waterproof repair of fan cables, respectively, to enhance equipment protection level.
nuclear power
       Nuclear power relies on the thermal energy generated by nuclear fission to generate electricity, and its components require high safety and corrosion resistance. It is mainly used in nuclear island and conventional island systems:
1. Accessories for nuclear island system
       Steam generator accessories, such as heat transfer tubes and tube sheet seals, transfer the thermal energy of the nuclear reactor to the secondary water circuit, generate steam to drive the steam turbine, and isolate radioactive substances.
       Reactor cooling system accessories, such as pressure boundary seals and circulating pump bearings, ensure stable coolant circulation and prevent nuclear leakage.
2. Conventional Island System Accessories
       Similar to conventional island components in thermal power generation, such as turbine bearings, generator coolers, etc., they achieve the conversion of steam energy to electrical energy and require radiation resistance and high temperature resistance.