Anti seismic test circle of nuclear island explosi

The anti-seismic test of the nuclear island explosion-proof wave valve designed and manufactured by Datong Baofu was successful

the nuclear island explosion-proof wave valve (safety level ls, quality assurance level QA2, anti-seismic category 1a) of China Nuclear Fuqing nuclear power unit 5 and unit 6 project designed and manufactured by Nantong Datong Baofu was successfully tested in the State Key Laboratory for disaster prevention of geotechnical engineering, Tongji University, Shanghai, and the product will enter the formal production stage

recently, the nuclear island explosion-proof wave valve (safety level ls, quality assurance level QA2, seismic category 1a) of China Nuclear Fuqing nuclear power unit 5 and unit 6 project, designed and manufactured by Nantong Datong Baofu, has conducted seismic tests in the State Key Laboratory of civil engineering disaster prevention of Tongji University in Shanghai, and achieved complete success. The product will enter the formal production stage. Previously, with a sales volume of 4.35 billion yuan, Dunan environment has undertaken the design and production tasks of all nuclear water chillers and seismic air-cooled units in Fuqing nuclear power plant. The successful seismic test of the explosion-proof wave valve of the nuclear island will lay a good foundation for the follow-up project

units 5 and 6 of Fuqing nuclear power station are the first demonstration project of China's independent third-generation nuclear power technology "Hualong 1". In July last year, Dunan environment officially signed a contract with China Nuclear Power Engineering Co., Ltd., and CNNC ordered nuclear island explosion-proof wave valve equipment for two million kilowatt nuclear power units of "Fuqing nuclear power plant units 5 and 6". Explosion proof wave valve equipment is mainly used for all outdoor new propulsion of nuclear island ventilation system that need to resist outdoor explosion and tornadoes, forming an efficient feedback interactive mechanism air inlet between remanufacture production and new product design and manufacturing. In case of the above accidents, it can quickly close and isolate, prevent the ventilation system from being impacted by instantaneous pressure, and ensure the integrity of ventilation system pipelines and equipment

the response spectrum (RRs) of the nuclear island explosion-proof wave valve participating in the seismic test was obtained by selecting the floor spectrum at the highest installation position of the explosion-proof wave valve in each plant according to the 2% damping ratio. A total of 5 SL-1 seismic assessment tests and 1 SL-2 seismic assessment test were carried out. The test shows that the structure and working performance of the explosion-proof wave valve remain intact and fully meet the seismic requirements

previously, Dunan environment has successfully won the bid for all nuclear grade cold water of Fujian Fuqing nuclear power plant No. 5 and No. 6 nuclear power plants. 5) antenna defects or damage caused by non material or processing problems; The project contracts for units and seismic grade air-cooled units, including 14 nuclear island water chillers and their auxiliary equipment, including 4 nuclear grade units and 6 seismic units, have been signed and delivered in 2016. In addition to the previously won units 1, 2, 3 and 4 of Fuqing nuclear power plant, Dunan environment has successfully signed relevant contracts with Fuqing nuclear power plant for all nuclear grade water chillers and seismic grade air-cooled units to build intelligent dynamic business mechanism. Fuqing nuclear power plant project has also become another important breakthrough for Dunan environment after the general contract for supply of Tianwan nuclear power plant. (according to Dunan group)