Furnace cooling apparatus

• US 4,235,173 A
• Filed: 04/13/1979
• Issued: 11/25/1980
• Est. Priority Date: 11/07/1978
• Status: Expired due to Term

• Current Assignee: Kenneth C. Sharp
• Original Assignee: Kenneth C. Sharp
• Inventors: Sharp, Kenneth C.
• Primary Examiner(s): Ruehl, Charles A.
• Application Number:
  US06/029,777
• Time in Patent Office: 592 Days
• Field of Search: 110/180, 110/336, 122/6 R, 122/6 A, 122/6 B, 432/253, 432/238, 432/237, 266/193, 266/194, 13/32
• US Class Current: 110/336
• CPC Class Codes: C21C 2005/4626 Means for cooling, e.g. by gases, fluids or liquids
• CPC Class Codes: C21C 5/4606 Lances or injectors
• CPC Class Codes: C21C 5/462 Means for handling, e.g. adjusting, changing, coupling
• CPC Class Codes: F27D 1/12 incorporating cooling arrangements constructions of tube assemblies in general F28
• CPC Class Codes: F27D 2009/004 the cooling medium passing a waterbox
• CPC Class Codes: F27D 9/00 Cooling of furnaces or of charges therein F27D1/00, F27D3/00 take precedence
• CPC Class Codes: F28D 15/0275 Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores

Abstract

Furnace cooling apparatus is provided including iron staves on the inside of a steel shell, outer portions of the staves being hollow to define reservoirs filled with water. Heat pipes are mounted in bores in inner solid portions of each stave and extend from inner ends in the reservoir to outer ends spaced a short distance from the inner surface of the stave. The inner surface of a stave has alternating surfaces and recesses and heat pipes aligned therewith have corresponding long and short lengths.

Claims

1. In a furnace wall construction, a plurality of staves having inside and outside surfaces, said inside surfaces being arranged for engagement with the outside of a refractory furnace lining, and cooling means including means defining elongated hollow enclosed spaces within said staves and extending outwardly from points close to said inside surfaces of said staves, each of said enclosed spaces containing a fluid for rapid outward transmission of heat from a refractory lining engaged with said inside surfaces of said staves, said cooling means including wick means extending longitudinally within said enclosed spaces for effecting the flow of fluid in a liquid phase to be vaporized at inner end portions of said spaces with the vaporized fluid being condensed at the outer end portions of said spaces.

2. In a furnace wall construction as defined in claim 1, said cooling means further including means defining hollow portions within said staves and arranged to be filled with water for conducting heat away from the outer ends of said elongated hollow enclosed spaces, an outer steel shell engaged with said outside surfaces of said staves, and said outer steel shell including inwardly offset portions between adjacent staves.

3. In a furnace wall construction as defined in claim 2 wherein said hollow portions extend inwardly to a plane in approximate alignment with said inwardly offset portions of said steel shell.

4. In a furnace wall construction as defined in claim 1, said cooling means including pipes having closed end walls and defining said elongated enclosed spaces, said staves having bores receiving said pipes.

5. In a furnace wall construction as defined in claim 4, each of said pipes having a concentric inner cylindrical wall filled with a refractory material.

6. In a furnace wall construction as defined in claim 4, a sleeve of a refractory material surrounding each pipe within each of said bores.

7. In a furnace wall construction as defined in claim 4, the inside surface of each of said staves having a plurality of recesses therein to provide alternating projections and recesses and certain of said bores aligned with said recesses and additional bores aligned with said projections, each bore having an inner end close to the opposed inside surface portion of the stave and each bore having a pipe therein extending to the inner end thereof.