Insulation enclosure with a radiant barrier

Patent metadata

Field	Value
Publication number	US-9889502-B2
Application number	US-201414438971-A
Country	US
Kind code	B2
Filing date	Jun 25, 2014
Priority date	Jun 25, 2014
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

An example insulation enclosure includes a support structure having at least an inner frame and providing a top end, a bottom end, and an opening defined in the bottom end for receiving a mold within an interior of the support structure, and a radiant barrier positioned within the interior of the support structure, the radiant barrier including a front surface arranged to face the mold and a back surface facing the support structure, wherein the radiant barrier interposes the mold and the support structure to redirect thermal energy radiated from the mold back towards the mold.

First claim

What is claimed is:

1. An insulation enclosure, comprising:
a support structure having at least an inner frame and providing a top end, a bottom end, and an opening defined in the bottom end for receiving a mold within an interior of the support structure;
a radiant barrier positioned within the interior of the support structure, the radiant barrier including a front surface arranged to face the mold when the mold is arranged within the interior and a back surface facing the support structure, wherein the radiant barrier interposes the mold and the support structure and redirects thermal energy toward the mold; and
insulation material supported by the support structure, wherein the support structure further provides an outer frame and the insulation material is positioned within a cavity defined between the outer frame and the inner frame.

2. The insulation enclosure of claim 1 , the insulation material being selected from the group consisting of ceramic, ceramic fiber, ceramic fabric, ceramic wool, ceramic beads, ceramic blocks, moldable ceramic, woven ceramic, cast ceramic, fire brick, carbon fibers, graphite blocks, shaped graphite blocks, polymer beads, polymer fiber, polymer fabric, a nanocomposite, a fluid in a jacket, metal fabric, metal foam, metal wool, a metal casting, a metal forging, any composite thereof, any derivative thereof, and any combination thereof.

3. The insulation enclosure of claim 2 , wherein the support structure further provides a footing at the bottom end at least partially supporting the insulation material.

4. The insulation enclosure of claim 1 , wherein the radiant barrier is coupled to the inner frame using at least one of one or more mechanical fasteners and a permanent attachment.

5. The insulation enclosure of claim 1 , wherein the front surface is a polished surface.

6. The insulation enclosure of claim 1 , wherein the radiant barrier is made of a material selected from the group consisting of aluminum oxide, aluminum nitride, silicon carbide, silicon nitride, quartz, titanium carbide, titanium nitride, a boride, carbides, a nitride, an oxide, iron, chromium, copper, carbon steel, maraging steel, stainless steel, microalloyed steel, low alloy steel, molybdenum, nickel, platinum, silver, gold, tantalum, tungsten, titanium, aluminum, cobalt, rhenium, osmium, palladium, iridium, rhodium, ruthenium, manganese, niobium, vanadium, zirconium, hafnium, any derivative thereof, and any alloy based thereon.

7. The insulation enclosure of claim 1 , wherein a gap is defined between the radiant barrier and the support structure, and wherein the gap is at least partially filled with an insulation material.

8. The insulation enclosure of claim 1 , further comprising a thermal barrier coating applied to at least one of the back surface of the radiant barrier and the support structure.

9. The insulation enclosure of claim 1 , further comprising a second radiant barrier positioned within the interior of the support structure and interposing the radiant barrier and the support structure.

10. The insulation enclosure of claim 9 , wherein a first gap is defined between the radiant barrier and the second radiant barrier, and a second gap is defined between the second radiant barrier and the support structure, and wherein one or both of the first and second gaps is at least partially filled with an insulation material.

11. The insulation enclosure of claim 9 , further comprising a thermal barrier coating applied to at least one of the back surface of the radiant barrier, a back surface of the second radiant barrier, and the support structure.

12. The insulation enclosure of claim 1 , wherein the radiant barrier comprises:
an inner wall;
an outer wall; and
a sealed chamber defined between the inner and outer walls and containing a vacuum or a gas selected from the group consisting of: air, argon, neon, helium, krypton, xenon, oxygen, carbon dioxide, methane, nitric oxide, nitrogen, nitrous oxide, sulphur hexafluoride, trichlorofluoromethane, dichlorodifluoromethane, dichlorofluoromethane, difluoromonochloromethane, any derivative thereof, and any combination thereof.

13. The insulation enclosure of claim 12 , wherein the inner frame and the outer wall are the same structure.

14. The insulation enclosure of claim 1 , wherein the radiant barrier has one or more sidewalls that extend at least partially between the top and bottom ends, and wherein a length of the one or more sidewalls is reduced such that the radiant barrier does not interpose the mold and the support structure at or near the bottom end.

15. The insulation enclosure of claim 1 , wherein one or more thermal properties of the radiant barrier vary in a longitudinal direction between the bottom and top ends.

16. The insulation enclosure of claim 15 , wherein the one or more thermal properties is radiosity, and wherein the front surface has a lower radiosity at or near the bottom end and a higher radiosity at or near the top end.

17. An insulation enclosure, comprising:
a support structure having at least an inner frame and providing a top end, a bottom end, and an opening defined in the bottom end for receiving a mold within an interior of the support structure; and
a radiant barrier positioned within the interior of the support structure, the radiant barrier including a front surface arranged to face the mold when the mold is arranged within the interior and a back surface facing the support structure, wherein the radiant barrier interposes the mold and the support structure and redirects thermal energy toward the mold;
wherein the radiant barrier comprises:
an inner wall;
an outer wall; and
a sealed chamber defined between the inner and outer walls and containing a vacuum or a gas.

18. The insulation enclosure of claim 17 , wherein the gas is selected from the group consisting of: air, argon, neon, helium, krypton, xenon, oxygen, carbon dioxide, methane, nitric oxide, nitrogen, nitrous oxide, sulphur hexafluoride, trichlorofluoromethane, dichlorodifluoromethane, dichlorofluoromethane, difluoromonochloromethane, any derivative thereof, and any combination thereof.

19. The insulation enclosure of claim 17 , wherein the inner frame and the outer wall are the same structure.

20. An insulation enclosure, comprising:
a support structure having at least an inner frame and providing a top end, a bottom end, and an opening defined in the bottom end for receiving a mold within an interior of the support structure; and
a radiant barrier positioned within the interior of the support structure, the radiant barrier including a front surface arranged to face the mold when the mold is arranged within the interior and a back surface facing the support structure, wherein the radiant barrier interposes the mold and the support structure and redirects thermal energy toward the mold, wherein one or more thermal properties of the radiant barrier vary in a longitudinal direction between the bottom and top ends.

21. The insulation enclosure of claim 20 , wherein the one or more thermal properties is radiosity, and wherein the front surface has a lower radiosity at or near the bottom end and a higher radiosity at or near the top end.

Assignees

• Halliburton Energy Services Inc

Inventors

• Ownby Clayton Arthur
• Cook Iii Grant O
• Thomas Jeffrey G
• Voglewede Daniel Brendan
• Atkins William Brian
• Joy Ronald Eugene
• Clark Michael

Classifications

• B22D27/04 Primary

  Influencing the temperature of the metal, e.g. by heating or cooling the mould · CPC title

• B22D27/15

  by using vacuum · CPC title

• B22D27/003

  by using inert gases · CPC title

• B22D30/00

  Cooling castings, not restricted to casting processes covered by a single main group (accessories for cooling cast stock in continuous casting of metals B22D11/124; controlling or regulating processes or operations for cooling cast stock or mould in continuous casting of metals B22D11/22; chill casting B22D15/00) · CPC title

• B22D45/00

  Equipment for casting, not otherwise provided for · CPC title