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Parallel double-head separate exhaust type radial turbine

A turbine and parallel technology, applied in blade support elements, engine elements, machines/engines, etc., can solve large axial forces, unstable rotor dynamics, and it is difficult for centripetal turbines to achieve higher power and higher efficiency And other issues

Pending Publication Date: 2019-07-16
长兴永能动力科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Parallel double-head separate exhaust type radial turbine
  • Parallel double-head separate exhaust type radial turbine
  • Parallel double-head separate exhaust type radial turbine

Examples

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Embodiment example

[0025] An industrial park needs to provide the enterprises in the park with saturated steam for production. The hourly demand is 35 tons and the steam pressure is 0.6 MPa. The main steam pressure provided by the boiler in the park is 2.35 MPa and the temperature is 400 °C. The main steam is desuperheated and decompressed by the back-pressure centrifugal turbine, and the turbine drives the generator to output electric energy. The exhaust pressure of the turbine is 0.6 MPa, and is further reduced in temperature by spraying water, and then sent to the steam user after reaching saturation. If the single-impeller type centrifugal turbine is used, the size of the impeller is large and the rotational speed is also high, which is difficult to meet the requirements of balancing the axial force and ensuring the stability of the rotor dynamics. The parallel double-head separately exhausted centripetal turbine of the present invention is used here. The inlet and exhaust parameters of each...

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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...

Claims

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Application Information

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IPC IPC(8): F01D5/04F01D15/08F01D15/10F01D15/12
CPCF01D5/043F01D15/08F01D15/10F01D15/12
Inventor 刘乐王墩金
Owner 长兴永能动力科技股份有限公司
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