Integral direct connection hydroelectric generating set

Abstract

An integral direct connection hydroelectric generating set comprises a water turbine and a generator. The two sides of a volute water diversion chamber of the water turbine are connected with a front cover plate and a water outlet chamber correspondingly, a rotating wheel is installed in the volute water diversion chamber, the rotating wheel is fixed to one end of a main shaft through a key and pressed tightly through a locking nut, and the other end of the main shaft penetrates through a center outlet of the front cover plate to be connected with the generator. Evenly-distributed movable guide vanes are installed at the position, located at an outlet of the rotating wheel, in the volute water diversion chamber, one end of each movable guide vane is embedded on the front cover plate, the other end of each movable guide vane penetrates through the side wall of the water outlet chamber and is connected with a guide vane speed regulating mechanism, and the guide vane speed regulating mechanisms are arranged on the outer side of the water outlet chamber. The length of a cantilever section required by connecting the main shaft with the rotating wheel is effectively reduced, the bearing stress is improved, and unit stable running is facilitated; and the integral direct connection hydroelectric generating set is novel and unique in structure, convenient to operate and low in cost, the requirement for water system waste energy recovery is met, the main shaft cantilever section is short, the structure is compact, running is stable and reliable, and social and economic benefits are remarkable.

Description

technical field [0001] The invention relates to a hydraulic generator set in the fields of energy saving and residual energy recovery, in particular to a fully assembled direct-connected hydraulic generator set. Background technique [0002] In industrial circulating water systems, urban heating systems and other pipe networks, it is common to use valve throttling to adjust the balance of the pipe network. Valve throttling wastes excess pressure energy in vain. Neutralization can be used to recover and convert this part of the wasted residual pressure into electrical energy. Conventional hydroelectric units can be used for residual pressure recovery, but their application is limited due to the disadvantages of complex systems, large volumes, and difficulties in installation and maintenance. Traditional hydroelectric units The guide vane speed control system is usually arranged on the side of the generator, and axial installation space needs to be reserved, resulting in too l...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a self-contained direct-connected hydroelectric generator set, which can effectively solve the problem of excessive length of the cantilever section of the main shaft, deterioration of the bearing force, easy vibration, and shortened bearing life. problems, with the functions of flow regulation and residual pressure recovery

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