A suspended hydroelectric power plant

By designing a suspended hydraulic power generation device, the impeller is rotated to generate electricity by the flow of underground liquid, which solves the problem of power supply for underground electrical control tools, realizes the efficient conversion of underground liquid energy into electrical energy, reduces frictional resistance, and has a simple structure that is easy to construct.

CN116335864BActive Publication Date: 2026-07-03PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2021-12-24
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Power supply to underground electrical control tools is difficult. Existing cable power supply is costly and cumbersome to install. Battery power supply has limited capacity and is complicated to replace. Turbine generators have high starting flow, low energy conversion rate, and short lifespan, making them unsuitable for the harsh underground environment and production needs.

Method used

Design a suspended hydraulic power generation device, including a shell, a lower connector, a lower half-shaft, an impeller, an upper half-shaft, a generator permanent magnet rotor, and a generator stator. It uses the flow of liquid to drive the impeller to rotate and generate electricity. The suspension structure reduces frictional resistance, and the conversion assembly facilitates construction.

Benefits of technology

It achieves efficient conversion of downhole fluid flow energy into electrical energy, reduces frictional resistance, has a simple and easy-to-process structure, is convenient to construct, adapts to multiple working conditions for downhole power generation, and has high conversion efficiency.

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Abstract

The present application relates to a kind of suspended hydraulic power generation device, including shell and lower joint, the shell is sequentially provided with lower half shaft, impeller, upper half shaft, generator permanent magnet rotor and generator stator;The generator stator is connected with lead wire;The shell is provided with water inlet hole corresponding to the position of impeller;Lower half shaft and lower joint are all provided with drain hole;The shell is provided with limiting piece for limiting the position of lower half shaft and upper half shaft;The shell end is provided with obturator, and the lead wire is worn out obturator.The present application has the effect of converting downhole liquid flow energy into electric energy, solving the problem of long-term supply of downhole electric energy.
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