High-efficiency water turbine

Abstract

The invention provides a high-efficiency water turbine. The water turbine comprises a pump shell, the pump shell comprises an upper end cover, a lower end cover, a first transition connecting plate, asecond transition connecting plate, a front side plate and a rear side plate, the upper end cover and the lower end cover are connected, a stator and a rotor are arranged in the pump shell, the crosssection of a stator is an oblateness, a fixed shaft penetrating through the stator is fixedly connected with the front side plate or rear side plate, the rotor comprises a front round plate, a rear round plate and a blade plate connected between the front round plate and the rear round plate, the inner edge of the blade plate can be in clearance fit with the upper end arc face and the lower end arc face of the stator, water inlet and outlet of the inner edge and the outer edge of the blade plate have the time difference, the front or rear round plate is located on the gap between the front orrear end face of the stator and the front or rear side plate, the two round plates are connected with the fixed shaft through bearings, the rear or front round plate is fixedly connected with a poweroutput shaft, the inner surface of the power output shaft is connected with the fixed shaft through a bearing, the outer surface of the power output shaft is connected with the rear or front side plate through a bearing, a water inlet is formed in the transition connecting plate opposite to the opening direction of the blade plate, and an air exhaust channel and an air inlet channel are formed inthe positions, close to the water inlet and the water outlet, of the upper end cover. The water turbine is simple in structure, low in manufacturing cost and capable of filling up the model selectionblank of a head water turbine.

Description

technical field [0001] The invention relates to the technical field of water turbines, in particular to a high-efficiency water turbine. Background technique [0002] my country is a large oceanic country, with a coastline of nearly 20,000 kilometers, star-studded harbors, and dotted with capes and islands. There is a huge reserve of tidal energy available to us, nearly 200 million KW, which is an inexhaustible, safe, reliable and clean energy for us. At the same time, my country is a country rich in land, rivers and water resources. According to statistics, the theoretical reserve of my country's mainland hydropower resources is nearly 700 million KW, and the exploitable capacity is 540 million KW. Judging from the tidal energy power stations that have been built in China, the operation and operation conditions are generally unsatisfactory, and there are common problems, that is, high unit cost, large amount of civil engineering, low operation efficiency, and slow return ...

AI Technical Summary

Problems solved by technology

The maximum value of sinA*cosA is 0.5, so F (existence) will not exceed 1 / 2 of F (water), and the hydraulic power does not fully exert its effectiveness; however, although the working principle of the bucket impact turbine is different from that of the counterattack type, it is The high-speed water flow impacts the water bucket to do work, but in the process of doing work, the water splashes and loses, this part of the water still has a large kinetic energy, and even reacts to other water buckets during the splashing process, which greatly affects the efficiency of the turbine

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