The world's first main helium fan with electromagn

2022-08-08
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At 15:53 on September 10, 2020, the rotating speed of the main helium fan of No. 2 reactor of Huaneng Shidaowan nuclear power high temperature gas cooled reactor demonstration project was steadily raised to the rated speed, and the dynamic suspension test of the electromagnetic bearing was successfully completed, marking the world's first high-power, high-temperature, hot At 15:53 on September 10, 2020, the rotating speed of the main helium fan of No. 2 reactor of Huaneng Shidaowan nuclear power high temperature gas cooled reactor demonstration project was steadily raised to the rated speed, and the dynamic suspension test of the electromagnetic bearing was successfully completed, marking that the world's first high-power, high-temperature and hot vertical fan supported by the electromagnetic bearing structure was available

the main helium fan of the demonstration project is the core equipment with completely independent intellectual property rights in China. It is known as the "heart" of high temperature gas cooled reactor. Its function is equivalent to the "main pump" of pressurized water reactor nuclear power plant, and it can provide driving force for the heat exchange cycle of reactor coolant helium. The equipment fills the gap in the application of high-power and high-speed motor technology and electromagnetic bearing technology in China, and breaks through the speed range and structural type of large vertical units

gradually cooling and finalizing the products since the demonstration project entered the commissioning stage, Zhangtao, deputy chief engineer of Huaneng Group, Secretary of the Party committee and executive director of the nuclear power company, has conducted on-site supervision for many times, Zhang Yong, leader of the joint commissioning team of the demonstration project, set up a key commissioning team for the main helium fan, and formulated a joint commissioning scheme. Since the commissioning of the electromagnetic bearing of the main helium fan was started on July 27, the commissioning team has worked hard for 45 days and nights to overcome a series of problems, such as abnormal insulation of the cable of the power coil of the electromagnetic bearing, unstable static suspension of the electromagnetic bearing, etc. On August 25, the static and stable suspension of electromagnetic bearings was realized. On August 27, the main helium of 2\reactor was stabilized at an average of about 304 people per day, and the fan was 400 rpm. This kind of regular reaction was put into operation in each specific experiment. On September 10, the main helium and the overall shipment volume of the enterprise will further increase the steady speed of the fan to the rated speed, realizing full power operation, laying a solid foundation for the smooth production of the demonstration project

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