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: 2006-08-09
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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 64,200KN. Considering the safe and reliable operation of the bearing, when the safety margin is 1.5, the bearing must Axial force of 96300KN; if the original design uses more than 6-7 sets of parallel ball bearings, there will be technical problems that cannot be installed and lubricated, and even the axial flow fan cannot be manufactured
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] As shown in Figure 1, the axial flow fan of the electromagnetic bearing of the present invention is made up of five parts of air inlet 1, throttling device 5, axial flow compressor 2, exhaust volute 6 and supporting system, and wherein axial flow compressor 2 is made up of The compressor rotor composed of five-stage rotating impellers, the compressor casing composed of five-stage rectifying blades, the front supporting electromagnetic bearing assembly, the rear supporting electromagnetic bearing assembly and the transmission shaft assembly are composed of 7 components, and the axial flow fan inlet is used as the fan shaft. The installation position of the front end and the front support electromagnetic bearing assembly is shown in Figure 1.
[0034] Such as figure 2As shown in the structural diagram of the front support electromagnetic bearing assembly, the front support electromagnetic bearing assembly consists of a radial limit ball bearing 11, a radial positioning fe...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More 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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
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