STRESS RELIEVED WELDS IN POSITIVE EXPULSION FUEL TANKS WITH ELASTOMERIC DIAPHRAGM
    3.
    发明申请
    STRESS RELIEVED WELDS IN POSITIVE EXPULSION FUEL TANKS WITH ELASTOMERIC DIAPHRAGM 审中-公开
    应力消除在积极展开燃油箱与弹性膜

    公开(公告)号:US20170016574A1

    公开(公告)日:2017-01-19

    申请号:US14797352

    申请日:2015-07-13

    Abstract: A metallic positive expulsion fuel tank with stress free weld seams may include a first hemispherical shell with a first edge; a pressurized gas inlet attached to the first hemispherical shell; and a metallic cylinder with first and second edges attached to the first hemispherical shell along matching first edges by a first weld seam. The tank may also include a second hemispherical shell with a first edge attached to a fuel outlet fixture. An elastomeric diaphragm may be attached to the fuel outlet fixture on the second hemispherical shell. The second hemispherical shell may be attached to the second edge of the metallic cylinder along matching edges by a second weld seam thereby forming a positive expulsion fuel tank with two interior chambers separated by the elastomeric diaphragm. The first and second weld seams may be subjected to a localized post-weld stress relief heat treatment in which heating of the tank is confined to a distance of 2 inches (5.08 cm) of the first weld seam and a distance of 2 inches (5.08 cm) of the second weld seam such that the stresses in the first and second weld seams are relieved and the elastomeric diaphragm is unaffected by the heat treatment.

    Abstract translation: 具有无应力焊缝的金属正排出燃料箱可以包括具有第一边缘的第一半球壳; 连接到第一半球壳的加压气体入口; 以及金属圆筒,其第一和第二边缘通过第一焊缝沿着匹配的第一边缘附接到第一半球形壳体。 罐还可以包括第二半球形壳体,其第一边缘连接到燃料出口固定装置。 弹性体隔膜可以附接到第二半球形壳体上的燃料出口固定装置。 第二半球壳可以通过第二焊缝沿着匹配的边缘附接到金属圆筒的第二边缘,从而形成具有由弹性体隔膜分隔开的两个内部腔室的正向排出燃料箱。 第一和第二焊缝可以经受局部焊后应力消除热处理,其中罐的加热被限制在第一焊缝的2英寸(5.08cm)的距离和2英寸(5.08)的距离 cm),使得第一和第二焊缝中的应力被释放,并且弹性体隔膜不受热处理的影响。

    Deep submergence ambient pressure cryogenic storage apparatus
    9.
    发明授权
    Deep submergence ambient pressure cryogenic storage apparatus 失效
    深层渗透压降低温储存装置(DEEP SUBMERGENCE AMBIENT PRESSURE CRYOGENIC STORAGE APPARATUS)

    公开(公告)号:US3798919A

    公开(公告)日:1974-03-26

    申请号:US30647472

    申请日:1972-11-14

    Applicant: US NAVY

    Inventor: HERSHNER C

    Abstract: The cryogenic storage vessel comprises a liquid storage volume, a conduit leading from that volume, a large flowable mass of solid spherical insulators within that conduit and a diaphragm at the end of the conduit opposite the liquid storage volume. The ambient pressure of the seawater surrounding the apparatus is transmitted to the cryogenic liquid by means of displacement of the diaphragm which is in contact with the ambient seawater and the corresponding change in the internal volume of the liquid storage apparatus. The mass of insulating spheres are allowed to flow within the conduit and partially into the liquid storage area upon displacement of the diaphragm. The insulators allow vapor of the liquid within their interstices but maintain a thermal gradient between the liquid and the diaphragm sufficient to protect the diaphragm from the extremely low temperatures of the cryogenic liquid by substantially preventing convection and conduction.

    Abstract translation: 低温储存容器包括液体储存容积,从该体积导出的导管,在该导管内的大的可​​流动的实心球形绝缘体,以及与液体存储容积相对的导管端部处的隔膜。 围绕设备的海水的环境压力通过与周围海水接触的隔膜的位移和液体储存设备的内部体积的相应变化而传递到低温液体。 允许绝缘球的质量在管道中流动,并且在隔膜移位时部分地进入液体存储区域。 绝缘体允许液体在其间隙内的蒸汽,但是保持液体和隔膜之间的热梯度足以通过基本上防止对流和传导来保护隔膜免受低温液体的极低温度的影响。

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