Parallel double-head separate exhaust type radial turbine

Abstract

The invention discloses a parallel double-head separate exhaust type radial turbine which comprises a high-pressure air inlet pipeline and a low-pressure air outlet pipeline. Two parallel radial turbines are arranged between the high-pressure air inlet pipeline and the low-pressure air outlet pipeline, the high-pressure air inlet pipeline is connected to the in interiors of the two radial turbinesthrough two branch pipelines, the two radial turbines are symmetrically arranged at the two ends of a high-speed shaft of a reduction gearbox to form a parallel double-head structure to jointly drivethe high-speed shaft of the reduction gearbox, the two radial turbines exhaust along the axial direction of the high-speed shaft and point to the direction far away from the reduction gearbox, volutes, nozzle blades and impeller blades of the two radial turbines all adopt the same geometric modeling, but the rotational flow directions of the volutes and the bending directions of the nozzle bladesand the impeller blades of the two radial turbines are opposite, the two radial turbines are respectively provided with an exhaust branch pipeline, and the two exhaust branch pipelines are commonly connected to the low-pressure exhaust pipeline. The high-speed shaft of the reduction gearbox is jointly driven by two radial turbines, a generator is driven by a low-speed shaft to generate electric energy after speed reduction, or energy-consuming equipment such as a water pump, a fan and the like is directly driven.

Description

technical field [0001] The invention belongs to the technical field of impeller machinery and power equipment. Specifically, the present invention relates to a parallel double-head separately exhausted centripetal turbine. Background technique [0002] With the upgrading and adjustment of the industrial structure of the national economy and the need for energy conservation and emission reduction, the waste heat and waste heat in various industrial enterprises need to be fully utilized more and more urgently to improve energy utilization. Especially as the country implements stricter air pollution control policies, various coal-fired industrial boilers and various production lines are in urgent need of technological transformation to reduce energy consumption and control pollution. [0003] Specifically, there are various forms of waste heat and waste heat in the papermaking, printing and dyeing, textile, chemical, petroleum and other industries. waste. In view of this sit...

AI Technical Summary

Problems solved by technology

However, limited by its own structure, there is a large axial force during the operation of the centripetal turbine, and its installation method is mostly cantilever type. The heavier impeller in the rotor is located at the shaft end, which is prone to rotordynamic instability.

These problems limit the speed and size of the centripetal turbine, making it difficult for the centripetal turbine to achieve higher power and higher efficiency

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