摘要:
Pressure vessels and closures for pressure vessels, such as for use in nuclear reactor systems, are described herein. A representative pressure vessel includes (i) a first enclosure including a first flange having a lower surface and a first inner surface, and (ii) a second enclosure including a second flange having an upper surface and a second inner surface. The pressure vessel can further include a sealing member having a first portion and a second portion. The first portion is configured to contact both the lower surface of the first flange and the upper surface of the second flange to provide a first seal between the first and second enclosures. The second portion is configured to contact, via an interference fit, both the first inner surface of the first flange and the second inner surface of the second flange to provide a second seal between the first and second enclosures.
摘要:
A protection system is provided for protecting a nuclear reactor positioned on a barge which is floating in the water of a tank. The system includes one or more cones which are positioned on the upper end of the nuclear reactor which will disintegrate and deflect an aircraft or missile striking the same. The system also includes structure which permits the barge to move downwardly in the tank upon an aircraft or missile strike to reduce the impact force of the strike.
摘要:
A nuclear power plant (101) having a protective superstructure (203) is shown. The superstructure comprises a first end region (204) configured to cover a nuclear reactor in a containment structure, a second end region (206) opposite the first end region and configured to cover a cooling water pump house, and a central region (205) between the first and second end regions and configured to cover a turbine hall. The superstructure has an oval-shaped plan profile, the oval having a greater degree of curvature at the first end region than at the second end region.
摘要:
There is disclosed a modular fuel cell system including a plurality of tubular segments configured to be fitted together in an end-to-end relationship to form an inner vessel of the modular fuel cell system. Each segment includes a base portion and a top portion that is separable from said base portion. The top portion and the base portion together defining an inner space for housing an integrated block of oxide fuel cells. First and second end caps are provided for sealing the respective segments at first and second opposed ends of the inner vessel, wherein said inner vessel is positioned within an outer vessel and provides a pressure boundary between an inside of the inner vessel and an inside of the outer vessel.
摘要:
A method of designing a self-shielding tank is disclosed. The method includes calculating a wind pressure loading and a projectile impact loading for the tank. Finite element analysis results are generated for the tank based on the calculated wind pressure loading and projectile impact loading. Tank geometry and features based on analysis results are determined and compared to acceptance criteria. The generated finite element analysis results are limited by a specified degree of plastic deformation.
摘要:
The present invention relates to a fiber-reinforced concrete composition for a containment building of a nuclear power plant. More particularly, the present invention relates to a fiber-reinforced concrete composition for a containment building, said composition improving both the toughness and shock resistance of the containment building of the nuclear power plant due to the chemical and physical properties of the fiber-reinforced material, thus ensuring stability against external shocks (caused by large civil aircraft, light aircraft, combat aircraft, or the like).
摘要:
본 발명에 따른 원전 격납건물용 섬유보강 콘크리트 조성물에 관한 것으로, 이를 더욱 상세히 설명하면 섬유보강재의 화학적 성질 및 물리적 성질에 기해 섬유보강 콘크리트 조성물에 의한 원자력 발전소 격납건물에 있어 인성을 강화시킴과 동시에 내충격성을 강화시킴으로 외부 충격(대형 민항기, 경비행기, 군용기, 등)에 의한 안정성을 확보할 수 있는 격납건물용 섬유보강 콘크리트 조성물에 관한 것이다.
摘要:
The invention relates to a method for forming a steel container (1) having a curled open end, comprising the steps of : i) providing a steel cup (11); ii) deep drawing the steel cup (11) into a drawn container preform (12); iii) thin drawing the body of the drawn container preform; and iv) curling an open end of the drawn container preform by forming a precurl (16) and by curling the precurl (16) into an elongated curl (19), to a apparatus for forming a steel container (1), and to such steel container (1) and its preform.