Open-channel rainwater generating system and method

Abstract

The invention discloses an open-channel rainwater generating system and method. The open-channel rainwater generating system comprises a house roof, a header pipe, an open approach channel, overflow holes, a volute, an exhaust water pipe, a generator, a turning wheel, a water guider, an outlet line, a control valve and a water retaining wall; the house roof is connected with the open approach channel via the header pipe; the water retaining wall is arranged at the rear end of the open approach channel, and the remote end of the open approach channel is connected with the volute; the control valve is arranged between the open approach channel and the volute; the overflow holes are arranged at the upper part of the water retaining wall and the upper part of the volute; a hydraulic generatoris arranged in the center of the volute; the hydraulic generator comprises the generator, the turning wheel and the water guider; the exhaust water pipe is arranged at the bottom of the hydraulic generator; and the outlet line is arranged on the generator. The open approach channel and the volute adopted in the invention have the advantages of low investment and convenience for construction; the flow rate of water is increased by the produced volute effect so that the generating efficiency is improved, and therefore, the complexity of rainwater power generation is reduced and the investment cost of rainwater power generation facilities is lowered.

Description

technical field [0001] The invention belongs to the field of water resource development and renewable energy utilization, in particular to an open channel rainwater power generation system and method. Background technique [0002] Rainwater utilization is an ancient traditional technology, which was adopted by people thousands of years ago and has been widely used in water-scarce countries and regions. Underground and surface water resources provide safe and sufficient water sources for human survival, but the use of rainwater has gradually been forgotten by people. For decades or even hundreds of years, rainwater has become a burden and has been regarded as waste water by people. be discharged. [0003] With the rapid progress and development of human society, acute problems such as water resource shortage, ecological environment deterioration, and energy crisis have become prominent, people have begun to re-examine and reflect on their own behavior, and rainwater utilizat...

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Problems solved by technology

In my country, rainwater utilization is still mainly at the level of mountainous reservoirs, and a large amount of urban precipitation is wasted. Even though some urban rainwater utilization measures have been implemented, the separation of rainwater and sewage drainage systems has not been achieved, and the recycling of rainwater resources still remains. Go through the process of first pollution and then purification, which not only causes high cost of rainwater utilization, but also cannot effectively take advantage of rainwater as a clean energy source

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