High temperature lined conduits, elbows and tees

Patent · Fri Jan 01 00:00:00 EST 1982

OSTI ID:864435

De Feo, Angelo ^[1]; Drewniany, Edward ^[2]

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1. Passaic, NJ
2. Bergen, NJ

A high temperature lined conduit comprising, a liner, a flexible insulating refractory blanket around and in contact with the liner, a pipe member around the blanket and spaced therefrom, and castable rigid refractory material between the pipe member and the blanket. Anchors are connected to the inside diameter of the pipe and extend into the castable material. The liner includes male and female slip joint ends for permitting thermal expansion of the liner with respect to the castable material and the pipe member. Elbows and tees of the lined conduit comprise an elbow liner wrapped with insulating refractory blanket material around which is disposed a spaced elbow pipe member with castable refractory material between the blanket material and the elbow pipe member. A reinforcing band is connected to the elbow liner at an intermediate location thereon from which extend a plurality of hollow tubes or pins which extend into the castable material to anchor the lined elbow and permit thermal expansion. A method of fabricating the high temperature lined conduit, elbows and tees is also disclosed which utilizes a polyethylene layer over the refractory blanket after it has been compressed to maintain the refractory blanket in a compressed condition until the castable material is in place. Hot gases are then directed through the interior of the liner for evaporating the polyethylene and setting the castable material which permits the compressed blanket to come into close contact with the castable material.

• Research Organization: Curtiss-Wright Corp
• DOE Contract Number: EX-76-C-01-1726
• Assignee: Curtiss-Wright Corporation (NJ)
• Patent Number(s): US 4363504
• OSTI ID: 864435
• Country of Publication: United States
• Language: English

Related Subjects

temperature
lined
conduits
elbows
tees
conduit
comprising
liner
flexible
insulating
refractory
blanket
contact
pipe
spaced
therefrom
castable
rigid
material
anchors
connected
inside
diameter
extend
male
female
slip
joint
permitting
thermal
expansion
respect
comprise
elbow
wrapped
disposed
reinforcing
band
intermediate
location
thereon
plurality
hollow
tubes
pins
anchor
permit
method
fabricating
disclosed
utilizes
polyethylene
layer
compressed
maintain
condition
hot
gases
directed
interior
evaporating
setting
permits
close
insulating refractory
hollow tube
refractory material
thermal expansion
hot gas
inside diameter
hot gases
stable material
close contact
spaced therefrom
temperature lined
lined conduit
temperature line
/285/29/138/