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    • 9. 发明申请
    • PRESSURE TUBE SPACER
    • 压力管间隔
    • WO98058388A1
    • 1998-12-23
    • PCT/CA1998/000555
    • 1998-06-09
    • F16L7/00G21C1/20
    • F16L7/00G21C1/20Y02E30/40Y10T24/1457
    • A spacer (18) for maintaining a pressure tube (12) in spaced relation with a calandria tube of a nuclear reactor. The spacer comprising a split ring (20) adapted to be disposed about the outer surface of said pressure tube. The ring has a central annular body portion (21) with a raised bearing surface (22) thereon adapted to contact the inner surface of said calandria tube and prevent contact between said outer surface and said inner surface. An annular land (24, 26) projecting from each side of said central body portion is adapted to receive a collar (30, 32) thereon effective to create an interference fit between said ring and said pressure tube and thereby constrain axial movement of said spacer on said pressure tube. The spacer of the present invention maintains its location on the pressure tube and does not suffer the axial movement which characterizes some conventional spacers. The bearing surface can have a coating to reduce ware and heat transfer.
    • 一个用于将压力管(12)保持与核反应堆的排放管间隔开的间隔物(18)。 所述间隔件包括适于围绕所述压力管的外表面设置的开口环(20)。 环具有中心环形体部分(21),其上具有凸起的支承表面(22),其适于接触所述卡氏管的内表面并防止所述外表面和所述内表面之间的接触。 从所述中心主体部分的每一侧突出的环形平台(24,26)适于容纳其上有效地在所述环和所述压力管之间产生过盈配合的套环(30,32),从而限制所述间隔件 在所述压力管上。 本发明的间隔件将其位置保持在压力管上,并且不会受到表征一些常规间隔件的轴向运动的影响。 轴承表面可以具有涂层以减少器具和热传递。