Vertical type center-through reversely-installed fixed-paddle axial flow hydraulic generator and acting method thereof

Abstract

The invention discloses a vertical type center-through reversely-installed fixed-paddle axial flow hydraulic generator and an acting method thereof. The vertical type center-through reversely-installed fixed-paddle axial flow hydraulic generator comprises a power generating mechanism, an excitation mechanism, a rotating wheel mechanism, a draft tube, a water guiding mechanism and a rotating wheel chamber. The rotating wheel mechanism comprises rotating blades, a rotary inner hood and a fixed outer hood, wherein the rotating blades are distributed on the inner side of the rotary inner hood in a sector shape, the rotary inner hood and the fixed outer hood are connected through a sealing bearing to form a sealed annular cavity, and the power generating mechanism and the excitation mechanism are coaxially mounted in the annular cavity in parallel in an up-down mode. A closed water flow channel is formed by the water guiding mechanism, the rotating wheel chamber and the draft tube. The vertical type center-through reversely-installed fixed-paddle axial flow hydraulic generator is long in service life, low in building cost and production management cost and high in water energy converting efficiency.

Description

technical field [0001] The invention relates to the field of hydroelectric equipment, in particular to a vertical center-pass and reverse-installed fixed-propeller axial-flow hydroelectric generator and a power-acting method thereof. Background technique [0002] According to the working principle, hydroelectric power generation devices can be divided into two categories: impact turbines and impact turbines. The runner of the impact turbine is impacted by the water flow and rotates, and the pressure of the water flow remains unchanged during the working process, mainly due to the conversion of kinetic energy; the runner of the impact turbine is rotated by the reaction force of the water flow, and the pressure of the water flow during the working process Both energy and kinetic energy are changed, but mainly the conversion of pressure energy. [0003] Pelton turbines, because only part of the working wheels pass through the water, and part of the water bucket is under force,...

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Problems solved by technology

[0006] The technical problems to be solved by the present invention are as follows: 1) The transmission shaft and bearing in the existing hydroelectric power generation device have relatively large losses due to the large force and high temperature generated by friction; 2) the generator of the existing hydroelectric power generation device Exciters and exciters will generate a lot of waste heat during work, and a special cooling system needs to be installed, and the cooling effect of the cooling system is not good, and it is easy to burn the core; 3) The high stable efficiency of the existing water turbine is only about 90%; 4) The existing hydro-generators are all customized machines for different terrains, and there are large differences in volume, which cannot be mass-produced; High strength requirements

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