Method for erection of absorber towers using jacking system
AssigneeThe Babcock & Wilcox Company
InventorsDennis S. Fedock, Gregory B. Glidden, Allyn E. Haase, Leon V. Urbain
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Abstract
A method for erecting absorber towers using trestle means (26) with jack means (32) to assemble a course and then lift it while constructing the next course below it. The first course is lowered on the just assembled course and welded thereto. These steps are repeated to form the outer wall (34) of the absorber tower (10). A clearance (48) is provided between the elevated course and the course to be assembled for installing the internal components of the tower. Advantageously, the method of the present invention allows for the construction of an absorber tower on site in retrofit applications where space may be restricted and access limited.
Claims17
A method for erecting an absorber tower, comprising the steps of:
- positioning a plurality of trestle means with jack means in a selected arrangement on a floor plate for the absorber tower;
- assembling sequentially a plurality of courses from individual shell plates to form an outer wall of the absorber tower, each course being assembled and then elevated after assembly with the jack means engageably moving up the trestle means;
- providing a clearance between the elevated course and the next course being assembled to allow access for internal components;
- constructing temporary supports inside the absorber tower for facilitating installation of internal components;
- installing spray headers and manifolds as internal components through the provided clearance between the elevated course and next course near ground level in predetermined courses of the absorber tower;
- fastening adjacent courses together sequentially by joining an elevated course with a just assembled course;
- and
- completing the absorber tower with its internal components contained therein by attaching the final course to a floor plate.
Dependencies are inferred from the claim text.