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中國廣核集團“尖峰計劃”科研項目-----三廢系統蒸發塔和脫氣塔關鍵技術研究

 

  三廢系統蒸發塔和脫氣塔是核電站廢液處理系統(TEU)和硼回收系統(TEP)中的關鍵設備。脫氣塔將反應堆冷卻劑中的氫氣、氮氣和放射性氣體脫除;蒸發塔對經過除氣的冷卻劑蒸發處理,分離成反應堆級的補給水(蒸餾液)和硼酸溶液(濃縮液)。目前,大亞灣和嶺澳核電站的蒸發塔和脫氣塔設備均由法國某公司成套提供,由于這兩個關鍵設備技術復雜,涉及的技術難題多,因此國內研制單位輕易不敢涉足,其嚴重阻礙我國核電設備國產化水平和進度。

  為打破技術瓶頸,中國廣核集團科研專項“尖峰計劃”特此立項——“三廢系統蒸發塔和脫氣塔關鍵技術研究”,由中科華核電技術研究院有限公司負責組織科研攻關。

  南京德邦金屬裝備工程股份有限公司承擔了蒸發塔單元的設計、制造、調試等整套建設工作,并順利通過中廣核集團的驗收。

  本課題旨在針對制約在役或在建的核電站塔器設備進行技術研究和科研攻關,打破國外技術壟斷,降低新工程電站的建設成本,實現設備或系統的國產化,最終形成自主知識產權,進一步提升自主品牌知名度和核心競爭力。

  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.

                      

脫氣塔 Degassing Tower                        蒸發塔Evaporation Tower