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A vertical axial flow pump

A vertical shaft and pump shaft technology, applied in the field of hydroelectric generators, can solve the problems of not being able to effectively improve the economic benefits of the pumping station, not being able to adjust the angle of the blades, and not being suitable for the working conditions of reverse power generation of the water pump, and achieving stable working time for a long time , good stability, and power-enhancing effects

Active Publication Date: 2021-02-12
HOHAI UNIV
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Problems solved by technology

[0003] The Chinese patent with the application number 201721128395.9 discloses a new type of axial flow pump. Although this scheme has modified the axial flow pump, it is not suitable for the reverse power generation condition of the water pump, and cannot accurately adjust the blades in the axial flow pump. Angle, can not effectively improve the economic benefits of the pumping station

Method used

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Embodiment Construction

[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0022] Such as figure 1 and figure 2 As shown, a vertical axial flow pump includes: an elbow-shaped water inlet channel 1, a siphon-type water outlet channel 10, a pump shaft 8, an impeller and a generator assembly, the generator assembly includes a generator body, and an elbow-shaped water inlet channel 1 communicates with the siphon-shaped water outlet channel 10 to form a water flow channel, water can flow between the elbow-shaped water inlet channel 1 and the siphon-shaped water outlet channel, and one end of the pump shaft 8 extends into the inside of the elbow-shaped water inlet channel 1 The hub 5 of the impeller is connected by transmission, and the other end extends beyond the elbow-shaped water inlet channel 1 and is connected to the m...

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Abstract

The invention discloses a vertical axial flow pump, comprising: an elbow-shaped water inlet channel, a siphon-type water outlet channel, a pump shaft, an impeller and a generator assembly, the generator assembly includes a generator body, an elbow-shaped water inlet channel and a siphon-type outlet The water outlet channel is connected, one end of the pump shaft extends into the elbow-shaped water inlet channel and is connected with the hub of the impeller, and the other end extends beyond the elbow-shaped water inlet channel to connect with the main shaft of the generator body. Vertical axial flow pump It also includes a blade angle adjustment device, the blade angle adjustment device includes: a gear shaft that is relatively fixedly connected to the hub and a pinion that meshes with the gear, and the pinion is set in one-to-one correspondence with the blades of the impeller, And it is fixedly connected with the corresponding blade. The invention drives the pump shaft to rotate through the impact of the water flow on the impeller, thereby driving the main shaft of the generator body to perform reverse power generation. The angle of the blade is adjusted through the meshing of the large gear and the small gear, which improves the efficiency of the blade adjustment angle. precision.

Description

technical field [0001] The invention relates to the technical field of hydraulic generators, in particular to a vertical axial flow pump. Background technique: [0002] The main function of the pumping station is flood control and drainage, and some pumping stations can generate electricity in reverse, creating direct economic benefits. The specific speed of the axial flow pump is relatively large, and its blades are adjustable to adjust the flow according to different working conditions. When the vertical axial flow pump is operating as a turbine for reverse power generation, the blades can be adjusted to different angles to improve the operating efficiency of the turbine. [0003] The Chinese patent with the application number 201721128395.9 discloses a new type of axial flow pump. Although this scheme has modified the axial flow pump, it is not suitable for the reverse power generation condition of the water pump, and cannot accurately adjust the blades in the axial flow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D3/00F04D29/18F03B3/06F03B3/14
CPCF03B3/06F03B3/145F04D3/005F04D29/181F05B2220/706Y02E10/20
Inventor 周颖郑源张玉全张付林高成昊汪昊蓝唐魏陈明炤
Owner HOHAI UNIV
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