Waste rainwater surplus energy recovery device

Abstract

A waste rainwater surplus energy recovery device comprises a water turbine. A rainwater pipe, a second-floor wastewater pipe and a first-floor wastewater pipe are sequentially arranged in a sleeving manner from inside to outside with a spindle of the water turbine as the center. The bottom of the spindle of the water turbine is sequentially connected with an upper-layer impeller, a middle-layer impeller and a lower-layer impeller from top to bottom. The lower-layer impeller is arranged in an annular channel between the extending face of the outer wall face of the second-floor wastewater pipe and the inner wall face of the first-floor wastewater pipe. The middle-layer impeller is arranged in an annular channel between the extending face of the outer wall face of the rainwater pipe and the inner wall face of the second-floor wastewater pipe. The upper-layer impeller is arranged in an annular channel between the inner wall face of the rainwater pipe and the outer wall face of the spindle of the water turbine. The top face of the rainwater pipe is over 3.2 m higher than the upper-layer impeller. The waste rainwater surplus energy recovery device is used in the field of energy conservation, emission reduction and water resource recycling comprehensive utilization in rural areas, towns and cities, gravitational potential energy of waste rainwater which is distributed in a scattered manner and drained irregularly and discontinuously is recovered and converted into kinetic energy, and the waste rainwater surplus energy recovery device can be used for a low-power distributed power station and the like. The waste rainwater surplus energy recovery device is low in investment, convenient to install and compact in arrangement, and the conversion efficiency of the gravitational potential energy of the waste rainwater is larger than 75%.

Description

Technical field [0001] The invention belongs to the field of comprehensive utilization of energy saving, emission reduction and resource recovery in rural, urban and urban areas, and particularly relates to a rainwater sewage waste energy recovery device suitable for recovering rainwater and domestic sewage gravitational potential energy and converting it into rotational kinetic energy. Background technique [0002] With the increasing scarcity of water resources and the increasing environmental awareness of people, the recycling of domestic sewage such as rainwater and household kitchen, bathroom washing and other household waste water has become a topic of concern. [0003] Rainwater is usually used for domestic miscellaneous water such as fire fighting, environmental landscape, car washing, water storage and flushing, and cooling water supply. Domestic sewage is usually used to flush toilets. After a large amount of used rainwater and sewage are collected, they are usually dire...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problems of short running time, small power generation, low use value and low power generation efficiency of the traditional sewage potential energy recovery and utilization of a single single-stage turbine, the use of multiple single-stage turbines has many problems such as many equipment, complex systems, and inconvenient installation. , the invention provides a kind of structural features such as "using a single water turbine, and the water turbine has multi-stage impellers arranged in a ladder shape", "impact multi-stage water turbine impeller rotation, independent or simultaneous use of roof rainwater and domestic sewage on each floor" and other technologies Features, rainwater and sewage residual energy recovery device with technical advantages such as "less equipment, simple system, large energy conversion, high use value, high energy conversion efficiency, and convenient installation"

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