| 摘要 |
The present invention features an installation system for facilitating the installation and removal of a closure onto and from a pressure vessel, respectively. The installation system comprises a fixed support structure constructed proximate a pressure vessel; a carriage dynamically and continuously supported by the fixed support structure, wherein the carriage also dynamically and adjustably supports a closure, such as a header or a deheader valve, in a continuous manner; an elevation adjustment assembly allowing the carriage and the closure to move in a vertical manner relative to the fixed support structure and the pressure vessel; and a horizontal transfer assembly that dynamically couples the closure to the carriage to enable horizontal, bidirectional transitioning of the closure relative to the carriage. The elevation adjustment assembly and the horizontal transfer assembly work in harmony together to provide both approximate and precision vector positioning of the closure to enable parallel and concentric alignment with the pressure vessel. In this manner, the closure may be installed and removed from the pressure vessel in a much safer and more efficient manner.
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