Oil-lubrication high-temperature air-cooling pile nuclear power plant main cooling fan motor

A technology for high-temperature gas-cooled reactors and cooling fans, applied in cooling/ventilation devices, asynchronous induction motors, electromechanical devices, etc., can solve the problem that the power of the helium compressor fan motor is small, it cannot be applied to high-power commercial reactor types, and it is not suitable for batch production Production and other problems, to achieve the effect of eliminating air seal design, eliminating oil leakage and oil atomization in the bearing chamber, and improving operation safety
CN107086743AActive Publication Date: 2017-08-22HARBIN ELECTRIC POWER EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN ELECTRIC POWER EQUIP
Publication Date
2017-08-22

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Abstract

The invention relates to an oil-lubrication high-temperature air-cooling pile nuclear power plant main cooling fan motor. The motor is a key device in a nuclear power island of a high-temperature air-cooling pile nuclear power plant, and works like a pressurized water reactor nuclear station main pump motor. An upper guidance thrust combined bearing and a lower upper guidance thrust combined bearing of the motor are arranged upper and lower ends of a motor stator. A motor support seat is arranged under the motor. By changing the rule and a design idea that a thrust bearing of a normal vertical motor is arranged under a guidance bearing, so it is the first time to use a rare lubricating sliding bearing structure on a high speed vertical motor. It proves that rare lubricating sliding bearing can be also used in a large vertical high speed motor, so the vertical motor design technology is improved, the new design field of high speed vertical motors is opened up and it is the first time to use a rare lubricating sliding bearing structure on a high speed vertical motor. The motor is suitable for large-power vertical high speed motor, especially for the high-temperature air-cooling pile nuclear power plant main cooling fan motor.
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Description

technical field

[0001] The invention relates to an oil-lubricated motor for a main cooling fan in a high-temperature gas-cooled reactor nuclear power plant. Background technique

[0002] Conventional nuclear power plants use liquid (water, heavy water or light water) as the coolant, and the coolant pump is driven by a power frequency vertical asynchronous motor, and the motor speed is mostly 1500rpm (50Hz power frequency power supply) or 1800rpm (60Hz power frequency power supply). The speed of the power frequency vertical asynchronous motor is constant and not high, the technical difficulty is small, and the production is relatively easy.

[0003] High-temperature gas-cooled reactor nuclear power plants with higher safety use helium as the main coolant of the reactor, and the helium is circulated through the fan unit for heat exchange. The previous high-temperature gas-cooled reactors were all experimental in nature, and the reactor power was small. The power of the helium...

Claims

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