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    • 8. 发明公开
    • METHODE DE TEST DE RESERVOIR CRYOGENIQUE COMPORTANT UNE PROTECTION CATHODIQUE
    • VERFAHREN ZUM TESTEN EINES TIEFTEMPERATURTANKS MIT KATHODISCHEM SCHUTZ
    • EP1592959A2
    • 2005-11-09
    • EP03780214.7
    • 2003-10-10
    • SAIPEM S.A.
    • BOREAVE, Alphonse
    • G01N17/02
    • C23F13/02G01M3/045G01M3/186G01M3/40
    • The invention relates to a method of testing a metallic cryogenic storage vessel before said vessel is put into operation, in which the vessel (1) is filled with water and, if necessary, appropriate measurements are taken. The invention is characterised in that it comprises the following steps consisting in: filling the metallic cryogenic storage vessel (1) with seawater; and providing the metallic base (2) and lateral walls (3) of the vessel (1), which are essentially made from plain steel, with temporary cathodic protection, by injecting an electric current into the anodes which are disposed inside the vessel (1) when said anodes are submerged. It is preferable to arrange a network of first anode(s) (51) immediately next to the base of the vessel using a support means (52), preferably with the option of removing said support means (52) and first anode(s) (51). In addition, it is advantageous if the first anodes (51) are disposed along a circle (C1) which is concentric to the centre of the surface of the vessel base and if the diameter of said circle (C1) is between 40 and 75 % of that of the surface of the base (2) of the vessel.
    • 该方法包括将含有约9%镍和约50m直径的钢制成的罐(1)用海水填充,并为其底部(2)和侧壁(2)的未涂覆金属表面提供临时阴极保护 3)通过向支撑件(52)围绕其底部布置的一系列浸没的阳极(51)递送电流。 阳极和支撑件优选地可移动并且设置在与基座的中心相同的5-10厘米的罐底座的一定距离处,并且测量其直径的大约40-75%。 支撑件可以是螺纹连接在连接阳极的绝缘电缆上的绝缘材料盘,并且搁置在罐的底部上。 第二组阳极(61)垂直地悬挂在罐中,优选地以圆柱形构造均匀地间隔开的线。