| 摘要 |
1,032,913. Preventing hydrogen embrittlement in high pressure reactors. A. O. SMITH CORPORATION. April 1,1963 [April 19, 1962],No. 12855/63. Heading B1X. In a high pressure reactor comprising an inner wall of hydrogen-resistant alloy steel an outer wall of carbon steel-disposed intimately around said inner wall and comprising hydrogen-sensitive weld regions, the inner wall comprises passages for diverting atomic hydrogen away from said regions, communicating with vents extending through the outer wall. As shown in Fig. 2, the wall comprises an inner shell 7 of chrome vanadium steel or other steel resistant to hydrogen embrittlement, and four layers 8 of carbon steel. A girth weld is represented at 14, surfaces 14a thereof being particularly sensitive. The shell is divided in the weld zone into an inner strip 19 and an outer strip 20 defining therebetween a passage 17 which connects with vent 16 to the atmosphere. Wire bands 21 serve as space for the strips. A network of channels 15 may also be provided in the outer surface of the shell 7 or in the inner surface of the innermost layer 8 and connected with the vents 16 to the atmosphere. Details of construction at the junction of the walls with end sections and with a closure assembly, are provided.
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