CN201090349Y - Blade type hydrogenerator - Google Patents

Abstract

The utility model relates to a vane type hydraulic generator, belonging to a current crush type impeller generator, which is intended to provide a hydraulic generator with small energy consumption and large torque. The utility model comprises vanes connected at the end of hydraulic turbine, wherein the vanes are elliptic, and concave at the middle, and arranged on the hydraulic turbine with 2-3m diameter at an interval of 10-15cm with equal radian, the hydraulic turbine is connected with the rotating shaft of generator by a multiplying wheel group, wherein the revolution ratio of the multiplying wheel group is 1:30. The utility model can utilize water resource effectively to drive the generator using small hydraulic power, solving the problem that user can not utilize smaller hydraulic power to generate electricity in the districts short of water. The utility model has the advantages of low energy consumption and high efficiency.

Description

A blade type hydroelectric generator

Technical field

The utility model belongs to a water flow impingement impeller generator.

Background technique

Application number CN98217744.5 Chinese utility model patent "Blade Hydrogenerator", proposed to be composed of two or more impellers connected to the generator, and the impellers respectively fix a set of gears that are vertically meshed with the driving gear and the driving gear The driving gear and the screw rod are connected and fixed on the straight rod of the float through the connecting rod, so as to drive the gear, the impeller, the shaft center of the generator, and the rolling bearing of the float in a straight line. The utility model makes full use of water energy, is light in weight, and has no pollution. However, in order to merge and open the blades, the complex design of the space wheel train will consume part of the work of the turbine; and the generator shaft is rigidly connected to the gear shaft. When the water pressure is unbalanced, the turbines on both sides of the generator will be on the generator shaft. The formation of torque changes the symmetrical annular inner edge of the air gap between the stator and the rotor, the mutual inductance coefficient of each phase winding of the stator and the rotor winding is no longer constant, and the amplitude of the armature magnetic potential changes with the position, resulting in the asymmetry of the three-phase current.

technical content

The purpose of the utility model is to provide a water turbine generator which consumes less energy and can provide a larger torque to the generator.

In order to achieve the above object, the utility model includes the blade 2 connected to the end of the water wheel 1, which is characterized in that the blade 2 is an ellipse concave in the middle, and is installed on the water wheel 1 with a diameter of 2 to 3 meters at an interval of 10 to 15 cm. Above, the water wheel 1 is connected to the rotating shaft 5 of the generator 4 through the speed-increasing gear train 3 .

Wherein, the speed ratio of the speed-up gear train 3 is 1:30.

In the utility model, the water turbine is set in running water, the blades are wading about 20cm or the blades are impacted by the water flow of the pipeline, and the water pressure pushes the impeller to rotate, the diameter of the impeller is large, and the torque is also large; When the rotor shaft of the generator is rotated, the relative positions of the stator and the rotor windings are constantly changing. With the periodic rotation of the rotor, the amplitude of the armature magnetic potential remains unchanged, forming an armature magnetic potential that is stationary relative to the rotor, and excites the three-phase windings of the stator to produce a symmetrical Induction potential, phase current output.

The utility model can effectively utilize water resources, drive the generator to generate electricity with the limited power of relatively small hydraulic power, and solve the problem that users cannot use relatively small hydraulic power to generate electricity in areas where water resources are scarce.

Description of drawings

Fig. 1 is a schematic diagram of the utility model.

Detailed ways

Further description will be made below in conjunction with the accompanying drawings.

In FIG. 1 , it includes a water wheel 1 , blades 2 , speed-increasing gear train 3 , generator 4 , and rotating shaft 5 .

Among them, the blades 2 are evenly installed on the water wheel 1 with a diameter of 3 m at intervals of 15 cm. The water wheel 1 is made of light anti-rust metal material with a wheel width of 5 cm and is supported by 6 symmetrically installed poles.

The water wheel 1 is connected to the rotating shaft 5 of the generator 4 through the speed increasing wheel train 3, that is, in the speed increasing wheel train 3, the rotating shaft of the driving wheel A is rigidly connected with the rotating shaft of the water wheel 1, and the rotating shaft of the driven wheel D is rigidly connected with the rotating shaft 5; the driving wheel A The intermediate wheels B and C are added between the driven wheel D, and B and C are respectively a group of gears, each of which is different in size and meshed in parallel; the rotation direction of the water wheel 1 is opposite to the rotation direction of the rotating shaft 5 of the generator 4, and the driving The rotation ratio of wheel A to driven wheel B is 1:30.

In Fig. 1, the blade 2 is an elliptical shape concave in the middle, and the height of the blade 2 is 15cm.

Claims (1)

1. blade type hydraulic turbine generator, comprise the terminal blade (2) that connects of water wheels (1), it is characterized in that blade (2) is the ellipse of middle indent, and at interval radian such as 10～15cm to be installed in diameter be on 2～3 meters the water wheels (1), water wheels (1) by ratio of revolutions be 1: 30 the speedup train (3) connect generator (4) rotating shaft (5).

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