中国广核集团“尖峰计划”科研项目-----三废系统蒸发塔和脱气塔关键技术研究

　　三废系统蒸发塔和脱气塔是核电站废液处理系统(TEU)和硼回收系统(TEP)中的关键设备。脱气塔将反应堆冷却剂中的氢气、氮气和放射性气体脱除;蒸发塔对经过除气的冷却剂蒸发处理，分离成反应堆级的补给水(蒸馏液)和硼酸溶液(浓缩液)。目前，大亚湾和岭澳核电站的蒸发塔和脱气塔设备均由法国某公司成套提供，由于这两个关键设备技术复杂，涉及的技术难题多，因此国内研制单位轻易不敢涉足，其严重阻碍我国核电设备国产化水平和进度。

　　为打破技术瓶颈，中国广核集团科研专项“尖峰计划”特此立项——“三废系统蒸发塔和脱气塔关键技术研究”，由中科华核电技术研究院有限公司负责组织科研攻关。

　　南京德邦金属装备工程股份有限公司承担了蒸发塔单元的设计、制造、调试等整套建设工作，并顺利通过中广核集团的验收。

　　本课题旨在针对制约在役或在建的核电站塔器设备进行技术研究和科研攻关，打破国外技术垄断，降低新工程电站的建设成本，实现设备或系统的国产化，最终形成自主知识产权，进一步提升自主品牌知名度和核心竞争力。

　　Evaporation tower and degassing tower are the key equipments in waste treatment system (TEU) and boron recovery system (TEP) in nuclear power station. Degassing tower is used to remove hydrogen, nitrogen, and radioactive gases from the reactor coolant. Evaporation tower is used to evaporate the coolant after degassing into reactor-grade make-up water (distillate) and boric acid solution ( concentrated solution). Currently, the complete sets of evaporation tower and degassing tower of Daya Bay Nuclear Power Station and Ling Ao Nuclear Power Station are provided by a French company. Since complex technologies and technical problem of these two key equipments, development organizations in domestic easily dare not to tread. And the domesticization level and progress of nuclear power equipments has been seriously hampered.

　　To break the technological difficulties, scientific research program "Rush Plan"——"the research on the key technologies of evaporation tower and degassing tower in waste system" is hereby set up by CGNPC. Central China Nuclear Power Technology Research Institute is responsible for organizing scientific research.

　　DUBLE has undertaken the design, manufacturing, debugging and other complete building work of evaporation tower unit and has passed the acceptance of CGNPC successfully.

　　This topic aimed at technical and scientific researching of restrictive towers and equipments of in service or under construction nuclear power plants to break the monopoly of foreign technology, reduce the construction cost of new project power plant, realize the domestication of equipment or system, and ultimately form the proprietary intellectual property rights and further enhance the own brand and core competitiveness.

                              

　　脱气塔 Degassing Tower                            蒸发塔Evaporation Tower