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Electromagnetic bearing test device for main helium fan

A technology of main helium blower and electromagnetic bearing, which is applied in the direction of mechanical equipment, machine/engine, pump control, etc., and can solve the problems of no equivalent capacity, similar structure, no model, etc.

Pending Publication Date: 2020-10-23
JIAMUSI ELECTRIC MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electromagnetic bearing is one of the important components of the main helium fan. This is the world's first high-power main helium fan using electromagnetic bearings. There is no product with comparable capacity and similar structure in the world. It breaks through the speed range of large vertical units. and structural types, there are no mature models at home and abroad to learn from

Method used

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  • Electromagnetic bearing test device for main helium fan
  • Electromagnetic bearing test device for main helium fan
  • Electromagnetic bearing test device for main helium fan

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The loader includes: electromagnetic force part, control cabinet, digital acquisition and control system (speed, force, etc.), counterweight plate, etc. The loader loads the motor counterweight plate through electromagnetic force (non-contact). The loading force can be adjusted with the motor speed. The loading force range is 0-6000kg. During the drop test, the main helium fan 4000r / min corresponds to a loading force of 4500kg. Power supply: 220V, 50Hz. The loader counterweight plate 1 is made of 40Cr material, which can simulate the mass and moment of inertia of the main impeller, and use the suction provided by the loader to simulate the aerodynamic force generated when it rotates. The loader counterweight plate 1 is cantilevered on the main impeller. The helium blower drives the motor shaft extension end, the loader counterweight plate 1 and the shaft adopt a tapered interference fit, the taper is 1:20, and the interference is 0.3mm. It is hot-packed during assembly a...

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Abstract

The invention provides an electromagnetic bearing test device for a main helium fan, and belongs to the technical field of electromagnetic bearing test devices for main helium fans. In the invention,a cantilever of a loader counterweight plate is installed at the extension end of a drive motor shaft of the main helium fan, the loader counterweight plate and the shaft adopt a cone interference fit, an electromagnetic force device is installed under the loader counterweight plate, a speed sensor is arranged on one side of the loader counterweight plate, the loader counterweight plate is matchedwith a loader bracket through the motor shaft and equipped with a counterweight plate end cover to realize axial orientation of the loader counterweight plate and the motor shaft, and the loader bracket is equipped with a force sensor. The electromagnetic bearing test device for the main helium fan solves the problem that the air gap between a loading plate and a loading part will change during the loading test, and can ensure that the main helium fan drop test is fully verified.

Description

technical field [0001] The invention relates to an electromagnetic bearing test device for a main helium blower, and belongs to the technical field of the electromagnetic bearing test device for a main helium blower. Background technique [0002] The function of the main helium blower is to drive the helium gas in the primary circuit of the high temperature gas-cooled reactor to flow through the reactor core, and to provide sufficient flow of helium to pass through the primary circuit system during the normal start-up, power operation and shutdown of the reactor to drive the reactor core The generated heat is carried away. The electromagnetic bearing is one of the important components of the main helium fan. This is the world's first high-power main helium fan using electromagnetic bearings. There is no product with comparable capacity and similar structure in the world. It breaks through the speed range of large vertical units. And structural type, there is no mature model...

Claims

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Application Information

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IPC IPC(8): F04D27/00
CPCF04D27/001
Inventor 郭小佳邹德宝王立名张蛟邰丽娟赵晶晶侯宇
Owner JIAMUSI ELECTRIC MACHINE
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