For micro hydro power plant water pelton turbine 15 mw

A Pelton turbine or Pelton wheel is a type of turbine used frequently in hydroelectric plants. These turbines are generally used for sites with heads greater than 300 meters. This type of turbine was created during the gold rush in 1880 by Lester Pelton.

When used for generating electricity, there is usually a water reservoir located at some height above the Pelton turbine. The water then flows through the penstock to specialized nozzles that introduce pressurized water to the turbine. To prevent irregularities in pressure, the penstock is fitted with a surge tank that absorbs sudden fluctuations in water that could alter the pressure.

Unlike other types of turbines which are reaction turbines, the Pelton turbine is known as an impulse turbine. This simply means that instead of moving as a result of a reaction force, water creates some impulse on the turbine to get it to move.

Pelton turbine is used in the hydroelectric power plant where the water available at high head i.e. 150 m to 2000 m or even more. In hydroelectric power plant it is used to drive the generator attached to it and the generator generates the mechanical energy of the turbine into electrical energy.

This is all about the Pelton turbine working, main parts, application with diagram

The operation of a Pelton turbine is fairly simple. In this type of turbine, high speed jets of water emerge from the nozzles that surround the turbine. These nozzles are arranged so the water jet will hit the buckets at splitters, the center of the bucket where the water jet is divided into two streams. The two separate streams then flow along the inner curve of the bucket and leave in the opposite direction that it came in. This change in momentum of the water creates an impulse on the blades of the turbine, generating torque and rotation in the turbine.[3]

The high speed water jets are created by pushing high pressure water (such as water falling from high heads) through nozzles at atmospheric pressure. The maximum output is obtained from a Pelton turbine when the impulse obtained by the blades is maximum, meaning that the water stream is deflected exactly opposite to the direction at which it strikes the buckets at. As well, the efficiency of these wheels is highest when the speed of the movement of the cups is half of the speed of the water jet.

1. Nozzle and Flow Regulating Arrangement (Spear)
• Nozzle is used to increase the kinetic energy of the water that is going to strike the buckets or vanes attached to the runner.
• The quantity of water that strikes the buckets is controlled by spear. The spear is installed inside the nozzle and regulates the flow of water that is going to strike on the vanes of the runner. A nozzle containing spear is shown in the figure given below.
• The spear is a conical needle present in the nozzle. It is operated by a hand wheel or automatically in an axial direction.
• When the spear is move backward the rate of flow of water increases and when it is pushed forward the rate of flow of water decreases.

2. Runner and Buckets
The runner with buckets is shown in the figure given below.
• Runner is a rotating part of the turbine. It is a circular disc on the periphery of which a number of buckets evenly spaced are fixed.
• The buckets are made by two hemispherical bowl joined together. Each buckets have a wall in between two hemispherical bowl called splitter.
• The splitter splits the jet of water striking the buckets into two equal parts and the jet of water comes out at the outer edge of the bucket.
• The buckets are designed in such a way that the jet of water strike the buckets, deflected through 160 degree to 170 degree.
• The buckets of the Pelton turbine are made up of cast iron, cast steel bronze or stainless steel.

3. Casing
The outer covering of the this turbine is called casing. The Pelton turbine with the casing is shown in the figure given below.
• It prevents the splashing of the water and helps to discharge the water to the trail race. It also acts as a safeguard in the case of any accident occurs.
• Cast iron or fabricated steel plates are used to make the casing of the 1mw micro turbina pelton.

4. Breaking jet
• When the jet of water is completely closed by pushing the spear in forward direction than the amount of water striking the runner becomes zero. But still the runner keeps moving due to the inertia of the runner.
• In order to stop the runner in the shortest possible time a small nozzle is provided which directs the jet of water at the back of the vanes. This jet of water used to stop the runner of the turbine is called breaking jet.

Why choose us?

1.More than 30 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

4.Design and manufacture of hydro power generator with voltage 400V

Hongya Power Generating Equipment To Utilities Limited, is founded in May, 2003 as a professional manufacturer of water turbine generator set. The company is located in a great place which surrounded by Mount WaWu and Emei, a place closed to many famous scenic spots such as Leshan Giant Buddha. The total company land is about 70000 Square meters, construction part 35000 Square meters. The employee is about 200 workers, which the R&D part is 25%.

We get more than 100 sets machines for manufacturer process including processing machine and test machine. We can manufacturer Francis turbine, pelton turbine, turgo turbine, Kaplan turbine, synchronous generator, speed governor, brushless excitor, hydraulic hardware etc with unit turbine generator set capacity under 20MW.

The company get 11 patents and many awards from the official authority, we also get certificate of QMS ISO9001 (2008).Our company get good technical and development cooperation with Sichuan university, Xihua university and Sichuan provincial machine R&D research. We are subcontractor of some famous water turbine generator manufacturer such as DEC: Chongqing Water Turbine Works co., LTD, etc.

We get good technical support from university and the contractor which enable us a better manufacturer with strong technology skill and rich project experiences.

Till now, HPGE offer a comprehensive range of hydroelectric power plant solutions that cover the entire scope of service including: Small hydro power project consultant; Site management studies; equipment Design; Hydroelectric equipment Manufacture; Project management; Installation guidance; Commission and start operation; Operation guidance; Hydroelectric equipment maintenance.

Products of HPGE are widely used in all around China, we cooperate with more than 300 hydro power plants with more than 600 turbine generators sets , including Francis turbine generator set, turgo turbine generator set, pelton turbine generator set, Kaplan turbine generator set, areas covering more than 20 provinces of China and also international markets such as Russia, Belarus, Turkey, Albania,Vietnam Indonesia, Nepal, Laos, Sri Lanka, Cuba and Brazil etc.