Water turbine rotating wheel and manufacturing method thereof

Abstract

The invention discloses a water turbine rotating wheel and a manufacturing method of the water turbine rotating wheel. The water turbine rotating wheel is formed by splicing a plurality of blades, and the upper crown outer side and the lower ring portion outer side of the water turbine rotating wheel are wrapped with a first steel wire winding layer and a second steel wire winding layer respectively; each blade comprises a water turbine blade body, an upper crown portion and a lower ring portion, wherein the upper crown portion and the lower ring portion are arranged at the two ends of the blade body; and the manufacturing method of the water turbine rotating wheel sequentially comprises the steps of blade designing, blade primary blank casting, heat treatment, surface cutting machining to obtain a refined blank, and sequentially conducting of surface anticorrosion treatment on the refined blank, heat treatment and grinding on the refined blank to complete industrialized manufacturing of the blades. The blades are transported to a dam, and after the blades are assembled, steel wire winding is carried out on the upper crowns and the lower rings of the blades; and sealing protection treatment is carried out on combined gaps and steel wire layers on the water turbine rotating wheel, and finally, finishing operation and debugging are carried out. According to the water turbine rotating wheel and the manufacturing method of the water turbine rotating wheel, the engineering problems that the water turbine rotating wheel is huge, and cannot be transported are solved, damaged portions can be conveniently and locally split or repaired or replaced, and the service life of the rotating wheel is greatly prolonged.

Description

technical field [0001] The invention relates to a hydraulic turbine runner, in particular to a hydraulic turbine runner which is convenient for transportation and assembly and a manufacturing method thereof. Background technique [0002] Due to the demand for power supply, the country has been constructing hydropower stations. Since the places with abundant water resources are in the northwestern region, such as the Yarlung Zangbo River in Tibet, these areas are located in mountainous areas and upstream plateaus of rivers, remote locations, and inconvenient transportation. However, water turbines are indispensable in hydropower stations. The weight of the runners of the water turbines is huge, and the entire runner weighing nearly 1,000 tons cannot be transported. Therefore, the transportation of the runners of the water turbines has become an engineering bottleneck for the construction of hydropower stations. The current solution is for hydropower stations. During the const...

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Problems solved by technology

[0002] Due to the demand for power supply, the country has been constructing hydropower stations. Since the places with abundant water resources are all in the northwest, such as the Yarlung Zangbo River in Tibet, these areas are located in mountainous areas and upstream plateaus, remote locations, and inconvenient transportation. However, water turbines are indispensable in hydropower stations. The weight of the runners of the water turbines is huge, and the entire runner weighing nearly 1,000 tons cannot be transported. Therefore, the transportation of the runners of the water turbines has become an engineering bottleneck for the construction of hydropower stations. The current solution is for hydropower stations. During the construction, a series of processing plants such as foundry, heat treatment plant, and surface processing plant for the production of hydraulic turbine runners shall be built near the dam, and the raw materials required for the runners shall be transported in batches to these factories for the production of the runners. After the construction of the hydropower station is completed, these factories will be dismantled and moved to the next hydropower station construction site. This method solves the technical problem of difficult transportation of the turbine runner. However, this method is costly and not ideal.

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