Micro Mini Small Water Francis Pelton Turgo Kaplan Hydro Hydraelectric Turbine Permanent Magnet Generator alter

Product Description

1200kw Francis Turbine for Hydro Power Plant

Overview

The Francis turbine fills a large gap between the Pelton and Kaplan and it is widely used. They operate in water head from 10 to 600 meters, and are primarily used for electric power generation. Their power output can be calculated from the water head and flow rate and typically range from 10 to more than 700 megawatts. One of the distinct advantages of the Francis turbine with respect to other water turbines is that they can also be used as water pump. This makes them ideal for a pumped storage systems.

1. Water inlet parts

Water inlet parts consist of connecting pipe, turbine inlet valve and expansion joint. Turbine inlet valve is used to close the unit in static water when need stop, it is also used to close the unit and cut the water flow in dynamic water when the unit is in emergency and turbine distributor break down. Expansion joint is used to compensate installation error and for the convenience of maintenance. Water drainage valve is located on the bottom. One end of connecting pipe is connected with the turbine inlet valve; another end is connected with the pipe of power plant (welded at site).

2. Spiral case

Spiral case is welding part, equipped with fixed guide vane in it. Spiral case shall make the water become number of swirl of water flow and guide water to flow regularly into guide vane apparatus and runner along circumference. It is equipped with an air relieve valve on the top of spiral case to exhaust air when filling water initially.

3. Turbine distributor

It consists of guide vane, guide vane lever, shaft sleeve, front cover, back cover, etc. It can form or change number of swirls of water flow to adjust turbine discharge according to variation of load. It is also used to normal and emergency shut down. The shape, dimensions, quantity and position of the 16 guide vanes is similar to the accepted model turbine, shall ensure the water flow won't cause vibration during operating. Diameter of spacing circle of guide vane is 860 mm. The guide vane has the hydraulic torque performance of self-close trend within the range from full opening to near no-load opening. The maximum opening of guide vane shall have certain margin. Stop block is equipped for each guide vane, the guide vane can be controlled to swing with certain range and won't hit with other guide vanes when the shear pin is broken and the friction device between guide vane and guide vane lever is out of service. The guide vane is made of ZG230-450, they shall be interchangeable. Each guide vane is machined precisely; the contacting line of adjacent guide vanes shall be finished to ensure perfect contact of all guide vanes under closing state in order to reduce water leakage. The bearings for guide vane shaft and distributor shaft are self-lubricated sliding bearings; the bearing shoe adopts steel back complex material. Use guide vane lever end cover and bolt to adjust and keep the position of each guide vane to the front cover and the rear cover. The sealing is located on upper guide vane shaft to cut the flow. The control ring is made by cast steel as a whole. Circular wiring plate is located on the external circumference of the control ring. The control ring has enough strength and rigidity, won't occur excessive bending due to unbalance stress of servomotor.

4. Runner

Runner is the heart of the turbine; it can transfer water energy to mechanic energy. Runner is welded as a whole, crown, band and blade is made of stainless steel ZG0Cr13Ni4Mo which has perfect performance of anti-cavitation, anti- corrosion and weldable. Crown and band adopts gap type sealing to reduce water leakage. Shape of each runner blade shall be machined according to standard GB/T 10969 "Specifications for water passage components of hydraulic turbines". The runner is welded and heat treated according to special specification, subject to non-destructive inspection according to ASME standard. The runner is subject to static balance testing after machining. Sixteen φ22 holes are located on runner crown in order to reduce the pressure applied on runner by the water.

Specification

Why choose us?

1. More than 20 years of industry experience, install commissioning more than 150 equipment each year

2. Provide complete proposal for hydro power plant from water to wire

3. Abundant foreign power plant project implementation experience such as France, Japan, USA, South Africa, Sri Lanka, Iran, Southeast Asia

4. Design and manufacture of hydro power generator with voltage 400V,6.3KV . capacity exceed 1000kw with 400V

FAQ

   1.You are a trading company or a manufacture?

We are a hydro turbine generator manufacture with over 20 years of experiences, Our factory is in the Sichuan you will take 2 hours driving after you reach Shuangliu Airport, pay a visit to our factory you will know more about us.

2.What Kind of water turbine should I choose?

We need to know water head, flow rate, voltage level, frequency, on-grid or off-grid running, automation level from you to work out the solution

3: Can you do the EPC for the hydro power plant?

Yes, We can design, producing and install the equipment, we will dispatch technologist and workers to install the equipment.