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Radial permanent magnet suspension impact type direct-connected micro-hydro generator

An impact type and magnetic levitation technology, which is applied in the direction of impact type engines, hydroelectric power generation, engine components, etc., can solve the problems of high cost and low energy conversion rate, and achieve the effects of prolonging service life, high power generation efficiency, and reducing friction loss

Inactive Publication Date: 2016-03-09
CHONGQING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, the present invention provides a radial permanent maglev impact type direct-connected micro-

Method used

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  • Radial permanent magnet suspension impact type direct-connected micro-hydro generator
  • Radial permanent magnet suspension impact type direct-connected micro-hydro generator
  • Radial permanent magnet suspension impact type direct-connected micro-hydro generator

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] As shown in the figure, the radial permanent maglev impact type direct-coupled micro-water generator in this embodiment includes a casing and a rotor shaft 1, and a runner 2 and a disc rotor 3 are fixedly arranged on the rotor shaft. The end face of the rotor is provided with circular rotor magnets 4 uniformly arranged along the circumference, and water buckets 5 are uniformly arranged on the outer diameter cylindrical surface of the runner, and the inner cavity of the water bucket is formed by a symmetrical left arc concave Cavity 51 and right arc-shaped concave cavity 52, the cross-section of the inner cavity of the bucket is m-shaped; the casing is fixed with a disc-shaped stator 6, and the end face of the disc-shaped stator has a coreless stator winding 7 ;

[0022] The two ends of the rotor shaft are respectively installed on the casing thr...

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Abstract

The invention discloses a radial permanent magnet suspension impact type direct-connected micro-hydro generator. The micro-hydro generator comprises a main case and a rotor shaft, a runner and a disc-shaped rotor are arranged on the rotor shaft, and an external diameter cylindrical surface of the runner is provided with buckets; the main case is provided with disc-shaped stators, two ends of the rotor shaft are respectively installed on the main case through magnetic bearings, and axial stop blocks and pressure pipelines are fixed on the main case. The water is introduced into the buckets through the pressure pipelines to drive the rotor shaft and the rotor to rotate so as to realize the generation; the disc-shaped rotor and the disc-shaped stators are adopted so that the a stator winding is capable of maximally cutting magnetic lines in the rotating process of the rotor, and the generation efficiency is high; when the water enters the pressure pipelines, impact force of symmetric waterflow enables tips of two ends of the rotor shaft to break away from the axial smooth stop blocks, the complete suspension is realized; the rotation of the rotor shaft is free from mechanical friction, the friction loss is reduced, the energy exchange efficiency can be improved, the service life of the generator can be prolonged; and meanwhile, the daily maintenance can be avoided, the motor cost and the running cost are low.

Description

technical field [0001] The invention relates to a generator, in particular to a miniature hydraulic generator. Background technique [0002] Micro-hydropower uses tiny water resources with low water head and small flow near the power load to generate electricity, without the need for power transformation, and is a hydroelectric power generation system that is directly used by users. Micro-hydropower is an important way to solve the contradiction between environment and resources, and it is of great strategic significance to promote rural electrification, sustainable development and overall social progress in my country and other countries, especially developing countries. [0003] However, the current efficiency of micro-hydropower generation is generally low. For example, in Europe and the United States, the efficiency of micro-hydropower can reach 70-80% by means of speed regulation. The efficiency is extremely low, about 20-40%. In order to improve energy conversion eff...

Claims

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Application Information

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IPC IPC(8): H02K7/18H02K7/09H02K1/12H02K1/22F03B1/02F03B13/00
CPCF03B1/02F03B13/00H02K1/12H02K1/22H02K7/09H02K7/1823Y02E10/20Y02P70/50
Inventor 古亮蒋新贺娟
Owner CHONGQING UNIV OF TECH
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