Turbine expansion power generation all-in-one machine

Abstract

The invention discloses a turbine expansion power generation all-in-one machine which comprises a centripetal turbine and a power generation device. The gas inlet volute is constructed to be annular and is provided with a gas inlet and a gas outlet which are suitable for introducing working medium gas; the guide vane is arranged at the air outlet of the air inlet volute and is used for doing work on the working medium gas through expansion; the impeller is arranged in the annular center of the air inlet volute and can rotate under the pushing of the working medium gas which is expanded to do work; one end of the main shaft penetrates through the center of the impeller and is fixedly connected with the impeller; the power generation mechanism is arranged at the end, away from the impeller, of the main shaft, the part, located on the power generation mechanism, of the main shaft serves as a motor rotor, the power generation mechanism comprises a generator shell connected with the air inlet volute, and a cooling structure for conducting working medium gas is arranged on the surface of the generator shell; the motor stator is arranged between the generator shell and the main shaft in a surrounding manner; and the working medium gas supply system communicates with the centripetal turbine and the generator shell so as to convey working medium gas to the centripetal turbine and the generator shell.

Description

technical field [0001] The invention relates to the technical field of turbo-expander power generation, in particular to an integrated turbo-expander power generation machine. Background technique [0002] With the increasing awareness of environmental protection, people paid more and more attention to the utilization of waste heat resources. Taking the internal combustion engine as an example, it occupies a large proportion of energy consumption, but the energy utilization rate is low, and nearly 50% of the energy in the fuel is wasted in the form of low-grade heat energy. Therefore, it is particularly important to make reasonable use of low-grade heat energy. . Organic Rankine Cycle (ORC) is a Rankine cycle thermal power generation system using low-boiling organics such as refrigerants and alkanes as working fluids. It has wide application prospects in the fields of internal combustion engine waste heat recovery and industrial waste heat recovery. Compared with the recyc...

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Problems solved by technology

Taking the internal combustion engine as an example, it accounts for a large proportion of energy consumption, but the energy utilization rate is low, and nearly 50% of the energy in the fuel is wasted in the form of low-grade heat energy. Therefore, it is particularly important to make rational use of low-grade heat energy

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