Axial fan using electromagnetic bearing

A technology of electromagnetic bearing and axial flow fan, which is applied to bearings, shafts and bearings, components of pumping devices for elastic fluids, etc. The effect of short time, instant and agile adjustment, and increased reliability

Inactive Publication Date: 2005-03-02
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The common problems are: the test equipment is huge, large in size, heavy in weight, large in investment, difficult to grasp and operate
However, when the research and development of higher-power gas turbines is proposed, for example, the axial force of the fan matching the power of 10,000-20,000KW gas turbines will be as high as 64...

Method used

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  • Axial fan using electromagnetic bearing
  • Axial fan using electromagnetic bearing
  • Axial fan using electromagnetic bearing

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Embodiment Construction

[0033] As shown in Figure 1, the axial flow fan of the electromagnetic bearing of the present invention is composed of five parts such as an air inlet 1, a throttling device 5, an axial flow compressor 2, an exhaust volute 6 and a support system, wherein the axial flow compressor 2 Composed of compressor rotor composed of five-stage rotating impeller, compressor casing composed of five-stage rectifying blades, front supporting electromagnetic bearing assembly, rear supporting electromagnetic bearing assembly and drive shaft assembly 7, etc., with the axial flow fan inlet as the The front end of the fan shaft and the installation position of the front support bearing assembly are shown in Figure 1.

[0034]As shown in Figure 2, the structural diagram of the front support bearing assembly, the front support bearing assembly consists of a radial limit ball bearing 11, a radial positioning ferromagnetic core 8 of the radial electromagnetic bearing stator and a positioning electroma...

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Abstract

The invention discloses a kind of axial-flow air-machine which uses electromagnetic bearing. There are five parts, air-entering passageway, throttle equipment axial-flow compressor, exhaust worm-shell and supporting system. The axial-flow compressor consists of the compressor rotor that consists of grade 5 rotating impeller, compressor box that consists of grade 5 rectifier vane, front supporting electromagnetic bearing module, back supporting electromagnetic bearing module, transmission shaft module, and so on. The air-entering passageway of the axial-flow air-machine is head of the air-machine bearing. The front supporting bearing module of the air-machine rotating bearing, consist sof radial restricted bearing and radial electromagnetic bearing in turn. Back rotor supporting bearing module consist sof axial electromagnetic bearing, radial electromagnetic bearing and radial-axial restricted bearing in turn. Fixing a throttle equipment adapted by electricity on the back of the air-entering passageway of axial-flow air-machine. This equipment consists of electric implement, connected mechanism, several parallel rotating valves.

Description

technical field [0001] The invention belongs to the technical field of turbomachinery equipment, and in particular relates to an axial flow fan using an electromagnetic bearing, which can be used as a load device to test the load performance of a gas turbine in the entire working area. It can also be used in the form of drums and induced draft fans for ventilation in mine shafts and underground tunnels, air supply and exhaust in subways, air supply for metallurgy, chemical industry, wind tunnel tests, and boilers in thermal power plants. Background technique [0002] For gas turbine performance testing, countries around the world have adopted different methods, Germany uses hydraulic dynamometer, American GE company uses generator dynamometer, and Russia uses generator winding resistance wire to measure dynamometer. The ubiquitous problems are: the test equipment is huge, large in size, heavy in weight, large in investment, difficult to master and operate. It is the first t...

Claims

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Application Information

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IPC IPC(8): F04D29/04F04D29/56F16C32/04
Inventor 阎成祥崔荣繁刘国庆钟玉玲宋乐民王俊民郝爽
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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