PRE-INSULATED PIPING SYSTEM
A pre-insulated pipe for carrying a fluid pressure has an elongated service pipe of a first length. A first insulation layer of an aerogel is wrapped about the service pipe. A metallic sleeve is wrapped about the first insulation layer such that a compressive force is exerted on the aerogel within the sleeve. The metallic sleeve has a second length less than the first length of the elongated service pipe.
1 . A pre-insulated pipe for carrying a fluid pressure comprising:
an elongated service pipe of a first length;
a first insulation layer comprising an aerogel wrapped about the service pipe; and
a metallic sleeve wrapped about the first insulation layer such that a compressive force is exerted on the aerogel within the sleeve wherein the metallic sleeve has a second length less than the first length of the elongated service pipe.
2 . The pre-insulated pipe of claim 1 further comprising:
an air gap about the first insulation layer.
3 . The pre-insulated pipe of claim 2 further comprising:
a rigid spacer member located radially outwardly of the first insulation layer.
4 . The pre-insulated pipe of claim 3 further comprising:
a first conduit about the first insulation layer, the service pipe, and the rigid spacer wherein the air gap is at least partially formed by communication between the rigid spacer and the first conduit.
5 . The pre-insulated pipe of claim 4 wherein the rigid spacer member is located within the air gap and supports the first conduit about the first insulation layer.
6 . The pre-insulated pipe of claim 5 further comprising:
a second insulation layer about the first insulation layer and the service pipe.
7 . The pre-insulated pipe of claim 6 wherein the second insulation layer is located radially outwardly from the first conduit.
8 . The pre-insulated pipe of claim 7 wherein the second insulation layer is of an aerogel.
9 . The pre-insulated pipe of claim 7 wherein the second insulation layer is selected from the group consisting of a polyurethane foam and a polyisocyanurate foam.
10 . The pre-insulated pipe of claim 6 further comprising:
a jacket located radially outwardly of the first insulation layer.
11 . The pre-insulated pipe of claim 10 wherein the jacket is located radially outwardly of the second insulation layer.
12 . The pre-insulated pipe of claim 11 wherein the first conduit is produced from a metallic material.
13 . The pre-insulated pipe of claim 11 wherein the jacket is produced from a group consisting of a fiberglass reinforced plastic and a thermoplastic.
14 . The pre-insulated pipe of claim 10 further comprising an aluminum diffusion barrier between the second insulation layer and the jacket.
15 . A pre-insulated pipe for carrying a fluid pressure comprising:
an elongated service pipe of a first length;
a first insulation layer comprising an aerogel wrapped about the service pipe;
a metallic sleeve wrapped about the first insulation layer such that a compressive force is exerted on the aerogel within the sleeve wherein the metallic sleeve has a second length less than the first length of the elongated service pipe;
a first conduit about the metallic sleeve, the first insulation, and the elongated service pipe having a third length greater than the second length of the metallic sleeve
an air gap between the first conduit and the first insulation layer; and
a rigid spacer member between the first conduit and the first insulation and in communication therewith for providing the air gap wherein the rigid spacer disposes the elongated service pipe non-concentrically relative to the first conduit.
16 . The pre-insulated pipe of claim 15 further comprising:
a second insulation layer about the first insulation layer and the service pipe.
17 . The pre-insulated pipe of claim 16 wherein the second insulation layer is located radially outwardly from the first conduit.
18 . The pre-insulated pipe of claim 17 wherein the second insulation layer is selected from the group consisting of a polyurethane foam and a polyisocyanurate foam.
19 . The pre-insulated pipe of claim 18 further comprising:
a jacket located radially outwardly of the second insulation layer.
20 . The pre-insulated pipe of claim 19 wherein the first conduit is produced from a metallic material.