Hybrid Method Of Erecting A Cold Box Using Prefabricated And Field Erected Components

• US 20100139208A1
• Filed: 12/10/2008
• Published: 06/10/2010
• Est. Priority Date: 12/10/2008
• Status: Active Grant

• Current Assignee: Air Liquide Canada Incorporated (Air Liquide SA)
• Original Assignee: Air Liquide Process & Construction, Inc. (L'Air Liquide SA)
• Inventors: Cote, Denis, Peltier, Stephane, Hardy, Yves, Poulin, Gilles
• Granted Patent: US 9,051,749 B2
• Time in Patent Office: Days
• US Class Current: 52/745.130
• CPC Class Codes: E04H 5/10 Buildings forming part of cooling plants
• CPC Class Codes: F25J 2290/42 Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box
• CPC Class Codes: F25J 3/0489 Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot" F25J3/04872 takes precedence
• CPC Class Codes: F25J 3/04945 Details of internal structure; insulation and housing of the cold box

Abstract

A method of erecting a cold box that includes the steps of anchoring at least one column to a foundation in a substantially vertical orientation; anchoring a pipe rack module to the foundation in a substantially vertical orientation, wherein the pipe rack module is in close proximity to the at least one column; attaching interconnecting piping between the pipe rack module and the at least one column; anchoring at least four corner beams to the edge of the foundation in a substantially vertical orientation; attaching prefabricated panels with bracing to the corner beams, to form an enclosure around the column and piping; and attaching a roof to the enclose is provided.

Claims

1. A hybrid method of erecting a cold box in the field utilizing prefabricated and field erected components, said method comprising the following steps:

a. anchoring at least one column to a foundation in a substantially vertical orientation;

b. anchoring a pipe rack module to said foundation in a substantially vertical orientation, wherein said pipe rack module is in close proximity to said at least one column;

c. attaching interconnecting piping between said pipe rack module and said at least one column;

d. anchoring at least four corner beams to the edge of said foundation in a substantially vertical orientation;

e. attaching prefabricated panels with bracing to said corner beams, to form an enclosure around said column and piping; and

f. attaching a roof to said enclose.

2. The method of claim 1, wherein said pipe rack module is prefabricated.

3. The method of claim 1, wherein said pipe rack module comprises one or more elements selected from the group consisting of control valves, manual valves, sample connections, piping, pre-cut panels with valve actuators, instrumentation, vapo flash, lighting, ladders and platforms, pre-wired junction box, instrument/electrical cable trays, piping support, duct to exchanger box, and the pump module.

4. The method of claim 1, wherein said at least one column comprises one or more elements selected from the group consisting of waste line, separator pots, large safety valve lines.

5. The method of claim 1, further comprising a second pipe rack module.

6. The method of claim 5, wherein said second pipe rack module comprises one or more elements selected from the group consisting of waste line, separator pots, large safety valve lines.

7. The method of claim 1, wherein said prefabricated panels are attached to said corner beams by bolting.

8. The method of claim 1, wherein said prefabricated panels are connected vertically or horizontally.

9. The method of claim 8, wherein said prefabricated panels are attached to the edge of said foundation or to adjacent prefabricated panels with bolts.