Held large pressurized water reactor nuclear safety assessments of pneumatic valve prototype < / div >

on June 5, China machinery industry federation, entrusted by the National Energy Administration, was held in suzhou by nuclear Sue pneumatic valve in science and technology industrial co. , LTD. , and the wider nuclear engineering co. , LTD. , joint self-developed PWR nuclear safety level of nuclear primary electric stop pneumatic valve, nuclear secondary V pneumatic valves, electric gate nuclear level 2 W type electric brake pneumatic valve pneumatic valves and other 7 prototype assessments of scientific and technological achievements, the expert group agreed that the 7 prototype development is the enterprise production, with the combination of a successful example of independent innovation, including nuclear secondary wedge type parallel plate electric brake pneumatic valve and the development of pneumatic diaphragm pneumatic valve to fill the domestic blank, technology reach the advanced level of similar foreign products, further promoted the process nuclear localization of pneumatic valve. In the nuclear group co. , LTD. , deputy general manager, chairman Qiu Jiangang in nuclear science and technology, National Energy Administration technology equipment department director of the orioles, Chinese Academy of Engineering Ye Qi stand, China machinery industry federation chief engineer SuiYongBin, big leaf, deputy director of rong and China nuclear equipment corporation, China nuclear power engineering co. , LTD. , wide nuclear engineering co. , LTD. , and other units in the relevant leaders and experts attended the assessments made an important speech. Appraisal committee for the Chinese Academy of Engineering, director of the Ye Qi stand academician, identification of the panel members from China machinery industry federation, the National Energy Administration, the nuclear group, CGNPC group, state nuclear power technology corporation, China nuclear technology Shanghai nuclear engineering research and design institute, institute of nuclear energy, tsinghua university, hefei general design and research institute, Shanghai jiaotong university and other units of senior experts. The main appraisal 7 million kilowatt of pneumatic valve prototype PWR are: nuclear secondary V pneumatic valves, electric gate level 2 W type pneumatic valves, electric gate kernel level electric as pneumatic valve, nuclear secondary cut-through nuclear secondary pneumatic ball valve, pneumatic diaphragm valve, seven types of nuclear grade, the four categories of pneumatic valve prototype. Sue pneumatic valve experts listened to the nucleus research unit of the research and summary report, looked at the nuclear Sue pneumatic valve production and test site, and the prototype are the spot check and test, reviewed the related drawings, documents, formed a conclusion after some discussion. Primarily for identification of the drawings is complete, complete, conform to the requirements of the appraisal. 7 prototype compact reasonable structure design, select material is proper, the parallel double ram structure with spring, disc spring loaded pneumatic valve seat, 5 ℃ inclined ball structure such as new structure, good sealing performance, small open-close torque, etc. , are innovative. And conventional performance have been carried out on the prototype, hot and cold cycle, thermal shock, the action of working condition of 2000 times of simulation life, fluid blocking performance, vibration aging, the dynamic characteristics of probe and dynamic earthquake, end load, such as flow coefficient test evaluation test, the test results meet the requirements of the specification and the related standard. Evaluation of nuclear and Sue pneumatic valve design ability, establish quality safety system run effectively, process equipment and complete test means, meet the demand of localization of batch production. Qiu Jiangang said, has long been in nuclear science and technology is the localization of nuclear power equipment manufacturing as an industry to develop. In the nowadays development, on the basis of nuclear science and technology will be the nuclear level high pneumatic valve as the development direction of the next step, in the same way, we also hope that each big the owners with our equipment manufacturing factory, with more flexible ways of cooperation, to make the industry bigger and common process of nuclear power localization of pneumatic valve. Orioles said, from ling ao phase ii is less than 4%, to now fuqing, Fang Jiashan by more than 40%, over the past few years, our country pump pneumatic valve home-made progress by leaps and bounds. As the vanguard of the pneumatic valve industry in our country, the nuclear science and technology in the nuclear power key system on pneumatic valves and new breakthrough, broke the foreign technology monopoly, increase the rate of the localization of nuclear power equipment, has become the backbone of the localization of nuclear power equipment. The government will be duty-bound to, actively provide strong support, expand the market for it. In addition, the owners should also actively and factory combination, common to nuclear power equipment localization on a new level. Nuclear Sue in pneumatic valve as the national first batch obtains the qualification of a civilian nuclear pressure equipment design and manufacturing license of nuclear power pneumatic valve manufacturers, in the relevant ministries and commissions of the state, colleges and universities, scientific research institutions of cooperation support, to speed up the pace of nuclear power localization of pneumatic valves, nuclear Sue pneumatic valve in independent research and development and technical research, broke the monopoly of foreign, in recent years has successfully developed nuclear level 1, 2, rapid opening and closing isolation nuclear grade 1 electric pneumatic valve, pneumatic valve, pressure relief poor low pressure pneumatic valve, swing check nuclear secondary hard seal nuclear secondary containment isolation air pneumatic valve, pneumatic V type parallel plate gate valve, nuclear grade high Cv value of check pneumatic valve pneumatic valve of new products, such as nuclear expert appraisal, and through the national authoritative department of nuclear science and technology has been successfully developed the 38 specifications of the new nuclear grade pneumatic valve, pneumatic valve pneumatic valve covers gate, globe, check the pneumatic control valve, pneumatic valve, pneumatic butterfly valve, pneumatic diaphragm valve and instrument pneumatic valve, pneumatic valve and other nuclear grade these nuclear power pneumatic valves prototype covers most million kilowatt nuclear nuclear grade pneumatic valve, also has the high parameters of high temperature and high pressure nuclear level top pneumatic valve design, manufacturing capacity, successfully passed the national authoritative department expert testimony, and with the nuclear group, CGNPC group signed a contract to supply. In addition, in nuclear science and technology according to the national nuclear power development plan, is actively promote million kilowatt nuclear power plant level key pneumatic valves such as main steam isolation the localization process of the pneumatic valve.