Supersonic radial-inward-flow turbine

Abstract

The invention discloses a supersonic radial-inward-flow turbine which is used for solving the technical problems that a traditional single-stage radial-inward-flow turbine cannot meet the condition that the requirement for inlet pressure is higher and higher and the expansion ratio required by a system is continuously increased. The embodiment comprises Lafar spraying pipes, a centripetal impellerand a circular ring shell surrounding the centripetal impeller; and a plurality of air inlets are evenly distributed on the outer side wall of the circular ring shell, the Lafar spraying pipes are arranged inside the circular ring shell, the inlet ends of the Lafar spraying pipes communicate with the inlet inlets, and the outlet ends of the Lafar spraying pipes face the center of the centripetalimpeller. In the embodiment, the Lafar spraying pipes are arranged between the inlet inlets and corresponding inlet outlets, the pressure of the high pressure air can be converted into high-speed kinetic energy through the Lafar scaling spraying pipes, the Mach number of outlets of the spraying pipes can usually reach 2 or more, the radial entry high-speed airflow can push the centripetal impellerto rotate to the rated speed, the air continuously expands in the centripetal impeller, and the using requirement is met.

Description

Technical field [0001] The invention relates to the technical field of turbine research and development, in particular to a supersonic centripetal turbine. Background technique [0002] As environmental pollution and energy shortages continue to intensify, the development and utilization of low-temperature heat sources such as solar energy, geothermal energy, biomass energy, and industrial waste heat have received widespread attention. Organic working fluids have the physical properties of low boiling point evaporation, so heat recovery in waste heat The Organic Rankine Cycle (ORC) is often used in the work conversion process. As the driving device in the organic Rankine cycle power generation system, the organic working fluid centripetal turbine has received extensive attention for its safety and reliability; [0003] In the solar thermal power generation system, the area of ​​the solar collector plate limits the load of the boiler. If a high initial steam parameter is ensured, t...

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Problems solved by technology

[0009] The embodiment of the invention discloses a supersonic centripetal turbine, which is used to solve the technical problem that the traditional single-stage centripetal turbine can no longer meet the higher and higher requirements of the inlet pressure, and the expansion ratio required by the system is constantly increasing.

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