【正文】 此外 ， 在高溫和（或）高壓下，盡管壓力容器 P承受壓緊或拉伸相鄰的密封區(qū)域，壓 力容器密封 S也是能夠保持流體與壓力容器有密封關。 Thus, the pressure vessel seal S of the present invention results in a selfenergized, that is pressure actuated, sealing system that requires little if any preload to affect a seal. The coating means C is such that it is selflubricating and may be applied generously to the surface of the annular seal ring R, allowing the toleration of large surface imperfections adjacent the pressure vessel joint J while being inexpensive to manufacture as well as being capable of being used multiple times, due to the variable contact surface pressure of the pressure vessel seal S as pressures within the pressure vessel P are varied. Further, the pressure vessel seal S is capable of maintaining a fluid tight relation with the pressure vessel P even though the pressure vessel P experiences straining or stretching adjacent the sealing areas of the pressure vessel seal S due to high temperatures and (or) pressures. 因此，本發(fā)明的壓力容器密封元件 S是一個自緊的，由壓力控制的密封系統(tǒng)，它不需要任何預加載來影響密封。這在環(huán)形密封環(huán) R和對應的密封表面 10g兩者間的配對角度，使壓力容器接縫 J的內壁 12e與環(huán)形密封環(huán) R最少的一部分開始先接觸，因此在高壓時，只需要一個較低的預緊力。如下文更詳細的討論。這一設想選擇的材料必須耐 腐蝕，耐高溫，以及禁得 住隨著情況要求的高壓。 環(huán) 18能 由任何適合的高強度材料，如不銹鋼，如任何適合的合金， 或類似的，是最好的。第一環(huán)形內表面 18i更好形成相鄰的 外 端 18d和第二環(huán)形內表面 18j形成在第一環(huán)形內表面 18i和 外 端 18f之間。 凹 腔 18c形成在第一環(huán)形外表面18a與 外 端 18d里和凹 腔 18e形成在第二環(huán)形外表面 18b與 外 端 18f里。 本發(fā)明的壓力容器密封元件 S包括一個環(huán)形密封環(huán) R。 壓力容器 10部分 有 更好地形成 的 一個內表面 10g，如在圖 2所示。 The pressure vessel seal S of the present invention is adapted to be used within a pressure vessel P. Such pressure vessels P are typically made up in such a fashion that there is a pressure vessel joint J as best seen in FIG. 1. The pressure vessel joint J of the pressure vessel P may include the pressure vessel sections 10, 12 which are of a generally cylindrical shape. Pressure vessel section 10 may include joint fingers 10a, 10b, 10c while pressure vessel section 12 includes joint fingers 12a, 12b. Preferably joint fingers 10a, 10b, 10c, 12a, 12b are of a substantially patible configuration in cross section and are configured such that the joint finger 12a fits between joint fingers 10a, 10b and joint finger 12b fits between joint finger 10b, 10c. Preferably, joint fingers 12a, 12b are of a slight taper such that as the pressure vessel sections 10, 12 are drawn together, the joint fingers are wedged into one another. Appropriate vessel pins such as 14, 16 are disposed within a suitably formed openings in the pressure vessel sections 10, 12 to secure the pressure vessel sections 10, 12 together. The vessel pins 14, 16 are also of a slight, tapered configuration which enhances the 南華大學機械工程學院 drawing together of the vessel sections 10, 12. For example, vessel pin 14 may be placed through opening 10d in joint finger 10a, opening 12c in joint finger 12a, opening 10e in joint finger 10b, into opening 12d formed in joint finger 12b, thereinto opening 10f formed within joint finger 10c of the pressure vessel P for securing the pressure vessel joint J together. The pressure vessel section 12 includes an interior wall 12e which may include a protective layer 12f mounted adjacent thereto with such protective layer 12f adapted to protect the interior wall 12e of pressure vessel section 12 from the effects of the contents within the pressure vessel P. Pressure vessel section 10 is preferably formed having