Horizontal vessels erection

Horizontal pressure vessels Vertical pressure vessels Storage tanks, shop fabricated Storage tanks, field erected... 

In 1916 an experimental plant was erected by Bergius near Mannheim however, little progress was made until 1921. In this plant coal paste was hydrogenated in horizontal reactors. In these reactors heated nitrogen at reaction pressure was circulated between a liner and the pressure-retaining wall to supply heat and to prevent reaction hydrogen from corroding the steel of the pressure vessels. The products obtained in this plant... 

Axial loads can also result when a vertical vessel, stack, or silo is transported and erected from the horizontal position due to bending of the shell. This procedure defines critical stress and critical load and differentiates between long, short, and intermediate columns. 

The above discussion supposes that the vendor assembles all fabricated process equipment before shipping it to the plant for installation. In some cases, equipment cannot be shipped to the plant site in one piece and pre-installation field assembly will be required. Examples are furnaces and very large distillation colmnns and other vessels, which cannot be trucked, barged, or sent by rail in one piece to the plant site. Large columns may be fabricated in sections in the shops of the vendor and transported to the plant site where the sections are welded in a horizontal orientation before the column is erected to a vertical position. In this chapter, the purchase cost of field-assembled equipment includes the cost of pre-installation assembly at the plant site. Field-assembly costs are usually included in the purchase-cost quote from a vendor. 

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