Francis Turbine

In a Francis turbine, the water flows radially into the turbine and axially out of the runner. The Francis turbine, invented by an American engineer in 1849, is the most widely deployed modern turbine. The main characteristics of the Francis turbine are - a wide range of water head, simple and reliable structure, and high efficiency. A Francis Turbine can be supplied for a head of 15 m to 250 m. The runner diameter is available from 0.4 m to 4.5 m. Power capacity is from 75 kW to 50 MW. New style francis turbine, compared to the old one, it has the advantages of convenient installation, high efficiency, low noise and compact structure.

Forged Entire CNC Machined Francis Runner Forging could considerably improve metals organizational structure and mechanical property. Forging offers uniformity of composition and structure. Forging results in metallurgical recrystalisation and grain refinement as a result of the thermal cycle and deformation process. This strengthens the resulting steel product particularly in terms of impact and shear strength. Forged steel is generally stronger and more reliable than castings of same material due to the fact that the grain flows of the steel are altered, conforming to the shape of the part. Getai Hydropower is a China supplier of Francis Turbine, Francis Turbine Generator, Francis Turbine Parts, Francis Runner, Construction And Working Of Francis Turbine. We have a complete quality management system. Choose us, you can be get most careful and thoughtful service! Forged Integrally +100% CNC Machining Francis Turbine Runner 1. GETAI has improved the manufacturing procedure of Francis turbine runner which suffered from the problems such as the cavitation and abrasion, welding seam cracks between crown, band and vanes, block worn off from vane etc. The whole Francis runner is forged integrally followed by entire CNC machining to eliminate tiny blowholes and slag inclusions existed on passage surface which accelerate cavitation and abrasion, and solve the potential risk existed by unreleased stress left after welding. The Francis turbine runner service life prolonged consequently. In the case the high head Francis runner with long and narrow passageway which is hard for entire CNC machining or the runner size exceeds the forging range which can not be forged integrally, GETAI applied a procedure by dividing the runner to two parts which consisted of crown with half vanes and band with rest half, both two parts can be forged integrally with entire CNC machining and welding assembled in final. The welding applied to the middle of vane, where is convenient for single pass welding without touch of potential crack area, the operation security and service life are improved largely. Samples exhibited below is for forged integrally+100% CNC machined Francis turbine runner (half part) which finished by our five axis linkage CNC machine.

The key Double Francis turbine components includes Runner, Distributor, Main shaft, Main shaft seal, Turbine guide bearing, Governor, among other. Application Scope: Water Head: Output: Frequency: 50/60HZ Runner Diameter: Lift Span 30-50 years Getai Hydropower is a China supplier of Francis Turbine, Francis Turbine Generator, Francis Turbine Parts, Francis Runner, Construction And Working Of Francis Turbine. Product Introduction 1. Advanced CFD, FEA technic is utilized in the designing process to ensure better technical solution. 2. CAE casting simulation is adopted for the produciton of casting parts, this advanced and reliable process plan could help effectively improve product quality. 3. All raw material strictly conform to international standard, such as ASTM, IEC,ISO etc. key component such as runners, guide vane is Forged and entire CNC machined. Chemical Composition for ASTM A473 S41500 and ASTM A743 CA6NM% Material No. C Si Mn P S Cr Ni Mo ASTM A473 S41500 0.05 0.60 0.5-1.0 0.030 0.030 11.5-14.0 3.5-5.5 0.40-0.80 ASTM A743 CA6NM 0.06 Max1.0 Max1.0 0.040 0.030 11.5-14.0 3.5-4.5 0.40-1.0 Mechanical Property for ASTM A473 S41500 and ASTM A743 CA6NM Material No. 0.2(Mpa) b(Mpa) 5(%) (%) Akv (J/cm2) HB ASTM A473 S41500 620 795 15 45 50 295 ASTM A743 CA6NM 550 755 15 35 50 285 We also provide Casting Pelton Runner, Forged Pelton Runner, Casting Guide Vane, Francis Runner Band Heat Treatment, Pelton Turbine. 4. State of the art machining and testing equipment, as well as licensed professional engineers all combined to help guarantee better product precisioness. 5. All product is subject to strict inspection according to international standards and client special requirements. 6. With the help of 3D Assembling, through motion simulation, the entire organization interaction can be seen at a glance. This helped a great deal for parts processing and pre-installation. 7. Each project will strictly follow manufacturying plan to ensure the delivery date. 8. ISO 9001 Quality Management system is carried out to ensure better management control

Francis turbine, kaplan turbine, pelton turbine, turgo turbine, bulb turbine, gate valve, butterfly valve, ball valve, synchro generator, excitation system, electric and control system. No

Runner diameters: 0.35-2.5m Suitable water head: h=10-300m Capacity of the generator unit: 160-20000kw The speed range of the turbine: 150-1000rpm The power output ranges from 160kw to 20000kw, runner diameters are between 0.5 and 2.5 meters. The speed range of the turbine is from 150 to 1000 rpm. excellent peak efficiency. high efficiency also at partial water flow down to about 50%. 2 or 4 bearing gen-set arrangements. bearings rated for more than 100 000 hours of operation. guide vane control electrically or hydraulically. complete range of specific speeds for runner design allows optimized matching to synchronous speed.

Forged Entire CNC Machined Pelton Runner Forging could considerably improve metal's organizational structure and mechanical property. Forging offers uniformity of composition and structure. Forging results in metallurgical recrystalisation and grain refinement as a result of the thermal cycle and deformation process. This strengthens the resulting steel product particularly in terms of impact and shear strength.Forged steel is generally stronger and more reliable than castings part. Project Basic Information Project Name: Minas-San Francisco HPP Project Location: Ecuador Pelton runner pitch diameter: 2460mm. OD: 3179mm Net Weight: 13300KG Buckent No. 21 Output: 91.6MW Product Introduction 1. Brief introduction for Forged Integrally +100% CNC Machined Pelton Turbine Runner Forging could considerably improve metals organizational structure and mechanical property. Forging offers uniformity of composition and structure. Forging results in metallurgical recrystalisation and grain refinement as a result of the thermal cycle and deformation process. This strengthens the resulting steel product particularly in terms of impact and shear strength. Forged steel is generally stronger and more reliable than castings of same material due to the fact that the grain flows of the steel are altered, conforming to the shape of the part. Getai Hydropower is Pelton Turbine Experiment, Francis Turbine Diagram, Francis Turbine Working, Pelton Turbine For Sale factoty. Performance comparison table of forging parts and casting parts Performance test of forging part Mechanical Property bMpa 0.2Mpa �5% % AKVJ/cm� HB Standard value 795 620 15 45 50 230295 Actual value Horizontal 815 655 17.5 64.5 107 102 110 259 256 253 Vertical 820 660 18.5 67 149 152 136 256 257 257 Performance test of casting part Mechanical Property bMpa 0.2Mpa �´5% % AKVJ/cm� HB Standard value 750 550 15 35 50 221286 Actual value 770 610 17 50 84 88 85 252 255 254 2. Machining vedio for the Forged entire CNC machined Pelton runner. 3. ISO 9001 Quality Management system is carried out to ensure better management control 4. Advanced CFD, FEA technic is utilized in the designing process to ensure better technical solution. 5. CAE casting simulation is adopted for the produciton of casting parts, this advanced and reliable process plan could help effectively improve product quality. 6. All raw material strictly conform to international standard, key component such as runners, guide vane is Forged and entire CNC machined

The Axial turbine is for low head power plants. Water flows axially into and out of the turbine. Axial flow turbines fall into two categories, fixed blade runner and variable pitch runner, also known as a Kaplan turbine. Fixed blade turbines are very well suited to low head power plants with limited variation in head and load. Its main advantage is its simple design. When operated at fixed speed, maximum efficiency is achieved at the design head and water flow. Kaplan turbines are used for medium to large power stations where there are large variations in the head, water flow and load. Its main advantage is its ability to adapt to variable conditions with a high efficiency. The variable pitch runner is mechanically more complex than a fixed pitch runner. Axial flow turbines can be supplied for a head of 2m to 70 m. The runner diameter is available from 0.6 m to 5 m. Power capacity is from 55 kW to 50 MW.

The tubular turbine is an axial flow turbine, in a straight or S-shaped configuration. A Tubular Turbine can be supplied for a head of 2 m to 30 m. The runner diameter is available from 0.8 m to 5.6 m. Power capacity is from 250 kW to 15 MW. This turbine has high efficiency and lower constructon cost.

Pelton turbine The runner has bucket shaped blades on the periphery. The jet of water is tangential to the runner. The characteristics are, high head applications, a simple design, few problems with cavitation, highly cost effective. Pelton turbines can be supplied for a head of 100m to 500 m. The runner diameter is available from 0.55 m to 1.5 m. Power capacity is from 200 kW to 10 MW. Inclined jet turbine: The water flows into and out of the runner at an angle to the main shaft. The characteristics are high efficiency over a wide range of water flow, more flexible installation options, somewhat more complex than a Pelton turbine. Inclined jet turbines can be supplied for a head of 60m to 300 m. The runner diameter is available from 0.32 m to 0.8 m. Power capacity is from 55 kW to 6.3 MW.