초록 ▼

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 ins

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.

대표청구항 ▼

A high temperature lined conduit comprising, a liner member, a flexible insulating blanket around and in contact with said liner member, a pipe member around said blanket and spaced therefrom, a castable rigid refractory material between said pipe member and said blanket, a fixing member connected b

A high temperature lined conduit comprising, a liner member, a flexible insulating blanket around and in contact with said liner member, a pipe member around said blanket and spaced therefrom, a castable rigid refractory material between said pipe member and said blanket, a fixing member connected between said liner member and said pipe member adjacent one end thereof for substantially holding said liner member with respect to said pipe member in the vicinity of said fixing member and permitting the thermal expansion of said liner member with respect to said pipe member, said fixing member comprising a truncated cone having an inner diameter end connected to said liner member and an outer diameter end connected to said pipe member, and at least one anchor extending from said cone and into said castable material.