S Type Turbine for High Head Hydropower Station for Large Discharge Station

High Efficiency  Hydro Turbine S Type Turbine for Heads 2m - 20m Hydropower Project

Specifications:

Descrition:

S type turbine is suitable for heads from 2m to 20m and large discharge hydropower station.

S-type tubular turbine is Available in versions of Horizontal Kaplan, also called S-type horizontal Kaplan. lts feature is that the water flow is axial throughout the passage from the inlet to the outlet, so that the passage is a straight conduit essentially.The turbine shaft exits the tube where it changes direction and can be installed either with a transfer belt or directly connected to the generator. This modern turbine is characterized by high efficiency in a broad band of flow rates.

S-type turbine is also consist of fixed runner blades and movable runner blades.

Structural Characteristics of Shaft-Extension Tubular Turbine Unit:

Layout form: Usually horizontal or inclined layout is adopted, with horizontal horizontal design being the most common. This layout makes the unit structure simple, with low cost and less engineering investment, and is suitable for small hydropower stations with low head.
Flow passage structure: The flow passage is composed of inlet pipe, stay ring, conical water guiding mechanism, runner chamber, draft tube and S-shaped draft elbow and tailrace. The water flow flows to the runner parallel to the turbine shaft along the axial direction. It enters from the inlet pipe and is evenly introduced into the runner chamber through the stay ring and conical water guiding mechanism. After pushing the runner to rotate and do work, it is discharged through the draft tube and S-shaped draft elbow. The water flow is smooth and the hydraulic loss is small.
Water guiding mechanism: The axial conical water guiding mechanism is adopted, and the guide vanes are arranged at an angle of 65° with the center line of the unit. This design can make the water flow form an ideal circulation and enter the runner chamber, improving the energy conversion efficiency of the turbine.
Runner and main shaft: The runner is similar to the blade shape of an electric fan and has two forms: fixed pitch and adjustable pitch. The runner is installed on the main shaft. The main shaft passes horizontally through the draft tube and is connected to the generator outside the draft tube. When the unit speed is high, it can be directly connected to a conventional generator; if the generator speed is low, it can be connected to the generator through a speed increaser.
Bearing and oil supply system: The generator and turbine bearings share one oil supply system for centralized oil supply. The high-level oil tank of the bearing is arranged in the auxiliary powerhouse about 10m high from the center line of the unit, and the oil return tank and hydraulic station are arranged in the turbine pit to ensure stable operation of the unit.
Speed regulation system: The governor is connected to the control ring of the turbine. By controlling the angles of the guide vanes and runner blades (for adjustable pitch type), operations such as starting the unit, connecting to the grid, increasing or decreasing load and stopping the unit are realized, so that the turbine can adapt to different operating conditions and maintain high efficiency.

Applications:

1.     Water head: 2m -- 20m

2.      Capacity: 0.1MW -- 10MW 

3.     Runner diameter: 0.4m -- 5m

4.     Frequency: 50/ 60hz 

5.     Output Type: 0.4KV, 3.3KV, 6.3KV, or 10.5KV AC three phase,

If you are interested in the Kaplan turbine, you should have some key parameters (such as net head, flow discharge, unit number, frequency, voltage) in inquiry.

Competitive Advantage:

HYDROTU is the complete Chinese hydropower equipment supply, consulting and engineering design venture in the field of hydropower equipment. We provide the high quality Chinese hydropower equipment with advanced technologies and integrated services to meet the global hydropower markets.

With our Integrated Services concept, we provide you with customized support from project planning through implementation to plant commissioning and service. Our principle: Customer’s project is our project , customer’s success is our success.

HYDROTU covers the services, complete equipment supply, economic solution of the global hydropower projects and aims to be the best global supplier of hydropower equipment as well as the best integrated services provider on the hydropower markets.

The characteristic structural advantages of the s type tubular turbine unit are as follows:

1. High efficiency: The flow passage of the shaft - extension tubular turbine unit is smooth, and the water flow can flow through the runner with a relatively small loss, which helps to improve the efficiency of the unit.
2. Good stability: The structure of the shaft - extension tubular turbine unit is relatively simple and compact. The runner is directly connected to the generator shaft, which reduces the vibration and noise of the unit during operation and has good stability.
3. High adaptability: This type of unit can be widely used in different water head and flow conditions. It can be designed and optimized according to specific project requirements to meet the needs of various power generation projects.
4. Convenient installation and maintenance: The shaft - extension tubular turbine unit has a relatively simple structure, which is convenient for installation and maintenance. The components are easy to access, which can reduce the difficulty and cost of installation and maintenance.
5. Low cost: Due to its simple structure and relatively low manufacturing cost, the shaft - extension tubular turbine unit has a certain economic advantage in power generation projects, which can reduce the overall investment cost of the project.