METHOD AND SYSTEM FOR LEAK TEST OF LNG TANK BY FILLING WATER
    31.
    发明申请
    METHOD AND SYSTEM FOR LEAK TEST OF LNG TANK BY FILLING WATER 审中-公开
    液化天然气水箱泄漏试验方法与系统

    公开(公告)号:US20070125157A1

    公开(公告)日:2007-06-07

    申请号:US11558851

    申请日:2006-11-10

    IPC分类号: G01M3/04 B21D51/26 G01M3/34

    摘要: In a leak test of an LNG tank by filling water, corrosion is prevented even if corrosive water such as sea water or filthy water is used, and the dissolution of zinc in water is restrained. A zinc-containing paint (18) is applied or a tape having a zinc-containing layer on the surface thereof is affixed to the surface of a weld zone (16, 14) of an inner wall (12) of the LNG tank, and corrosive water including sea water or filthy water is introduced into the LNG tank in the state in which the zinc-containing paint (18) or the zinc-containing layer forms the surface of the weld zone. The LNG tank is filled with the corrosive water, and after a predetermined period of time has elapsed, the corrosive water is discharged from the LNG tank. In the case where the tape having a zinc-containing layer on the surface thereof is affixed, the tape is taken off, and then a flaw in the inner wall of LNG tank is detected.

    摘要翻译: 在通过充水的LNG罐的泄漏试验中,即使使用了海水,肮脏的水等腐蚀性水,也能够防止腐蚀,并且锌的溶解在水中。 施加含锌涂料(18)或其表面上具有含锌层的带固定在LNG罐的内壁(12)的焊接区(16,14)的表面上,以及 在含有锌的涂料(18)或含锌层形成焊接区的表面的状态下,将含有海水或污水的腐蚀性水引入LNG罐中。 液化天然气储罐装有腐蚀性水,经过一段预定的时间后,腐蚀性水从LNG罐排出。 在其表面上具有含锌层的胶带被固定的情况下,剥离胶带,然后检测到LNG罐的内壁中的缺陷。

    Composite reinforced gas transport module
    33.
    发明授权
    Composite reinforced gas transport module 有权
    复合增强气体运输模块

    公开(公告)号:US06779565B1

    公开(公告)日:2004-08-24

    申请号:US10392561

    申请日:2003-03-19

    申请人: Norman C. Fawley

    发明人: Norman C. Fawley

    IPC分类号: B65B104

    摘要: A system is disclosed for the manufacture and use of a composite reinforced gas transport module (“GTM”). A metal shell of the system is wrapped circumferentially with a composite reinforcement, the composite reinforcement is post cured and the metal shell is then pressurized beyond the yield point of its material to load the composite reinforcement. The system is then brought to ambient temperature. The expansion deformation of the metal shell due to pressurization beyond the yield point results in a loading of the metal shell by the cured composite reinforcement at ambient temperature. Thus, a negative hoop stress condition is created in the metal shell at ambient to reduce the hoop stresses created during subsequent pressured operation.

    摘要翻译: 公开了一种用于制造和使用复合增强气体输送模块(“GTM”)的系统。 系统的金属外壳用复合增强材料周向缠绕,复合增强材料后固化,然后将金属外壳加压超过其材料的屈服点以加载复合材料。 然后使系统达到环境温度。 金属壳由于加压超出屈服点的膨胀变形导致金属壳在环境温度下被固化的复合材料加固。 因此,在环境中在金属壳体中产生负的环向应力条件,以减少在随后的加压操作期间产生的环向应力。

    Inert-metal lined steel-bodied vessel end-closure device
    36.
    发明申请
    Inert-metal lined steel-bodied vessel end-closure device 失效
    惰性金属内衬钢体端盖装置

    公开(公告)号:US20030189053A1

    公开(公告)日:2003-10-09

    申请号:US10116628

    申请日:2002-04-04

    发明人: John W. Felbaum

    摘要: A steel-body vessel, suitable for storing ultra-high purity gases, has a relatively inert metal lining which covers the interior surface of the steel vessel body, preventing the stored gas from making any contact and reacting with the steel vessel body. The relatively inert metal lining extends into the vessel end pieces which are interiorly threaded, in the steel, proximate the relatively inert metal lining. The surface of the inert metal lining is conditioned to be smooth, preferably to 15 nullRa or better. The vessel end pieces are sealed with end closure devices, which are secured by a securing portion carrying exterior threads to matingly engage the interior threads on the vessel end pieces. The end closure devices contain a sealing portion constructed of the relatively inert metal, which retains an annular sealing gland to seal the vessel in a removable, non-contaminating manner at service pressures when the end closure device is seated within the vessel end piece by means of the securing portion.

    摘要翻译: 适用于储存超高纯度气体的钢体容器具有相对惰性的金属衬里,其覆盖钢容器主体的内表面,防止储存气体与钢容器体接触并发生反应。 相对惰性的金属衬里延伸到容器端部件中,其在钢内部螺纹连接在相对惰性的金属衬里附近。 惰性金属衬里的表面被调节为光滑,优选为15μm或更好。 容器端部件通过端部封闭装置密封,端部封闭装置通过承载外部螺纹的固定部分固定,以配合地接合容器端部件上的内部螺纹。 端部封闭装置包含由相对惰性的金属构成的密封部分,该密封部分在端部封闭装置通过装置安置在容器端部件内时在保持压力下保持环形密封压盖以可拆卸的,无污染的方式密封容器 的固定部分。