High temperature lined conduits, elbows and tees

Patent · Fri Jan 01 04:00:00 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
• Assignee: Curtiss-Wright Corporation (NJ)
• Patent Number(s): US 4363504
• OSTI ID: 864435
• Country of Publication: United States
• Language: English

Related Subjects

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