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Blast furnace tuyere cooling

A coolant and cooling system technology, applied in tuyere, blast furnace, furnace cooling, etc., can solve problems such as heat removal, connecting pipe failure, coolant boiling, etc.

Inactive Publication Date: 2012-12-12
艾伦·J·麦克雷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the coolant spins ineffectively in a small circle, hot spots can form and fail to carry any absorbed heat away
The heat at these points can rise high enough to boil the coolant, which can cause failure of the part, as well as the connecting pipes

Method used

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  • Blast furnace tuyere cooling
  • Blast furnace tuyere cooling
  • Blast furnace tuyere cooling

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] Figures 1A-1C One cooling system embodiment of the present invention is shown, here indicated by reference numeral 100 . Cooling system 100 includes a cast metal workpiece 102 having an inlet 104 into a serpentine passage 106 for circulating fluid coolant. The first turn of the serpentine passage 106 has an inner turn radius 108 and an outer turn radius 110 relative to the substantially plane of the serpentine passage 106 . The inner turning radius 108 and outer turning radius 110 are sized and shaped to eliminate or substantially reduce eddies 112 that may occur in the coolant flow. Such vortices 112 are often present at these points and just downstream in conventional designs. Vortex 112 swirls the coolant into useless circles that are unable to dissipate the heat they collect or hold.

[0027] In general, broadening and widening the turn radius at the turn will somewhat eliminate the eddy currents 112 in the coolant flow. But these increases must be balanced aga...

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PUM

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Abstract

A cooling system comprises serpentine cooling fluid passages cast into a work piece with carefully controlled turning radii and profiles. Individual interdigitated baffles are contoured in the plane of coolant flow to have walls that thicken and then round off at their distal ends. The outside radii at these turns is similarly rounded and controlled such that the coolant flow will not be swirled into eddies.

Description

technical field [0001] The present invention relates to gas and fluid cooling of equipment, and more particularly to methods and apparatus for eliminating eddies in high velocity coolant flow through the serpentine coolant passages of blast furnace tuyeres. Background technique [0002] Efficient cooling is a widespread need in many types of industrial equipment and machinery. Without cooling to keep operating temperatures within acceptable limits, engines, furnaces, and other equipment can generate enough heat to damage themselves. Three modes of cooling or heat transfer can be employed: thermal radiation, thermal conduction, and thermal convection. Normal cars and trucks use coolant that circulates through a water jacket and tank to keep the engine's operating temperature below 200F degrees. Excess heat collected in the coolant by convection is transferred through the tank to the blown air. [0003] Fluid and gas coolers are widely used in metallurgical furnaces, molds ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/00F28D15/00B23P15/26C21B7/16F23L5/00
CPCF27B1/16F28F7/02C21B7/10C21B7/163F27B1/24F28F13/02F28F3/12F27D9/00Y10T29/49341Y10T29/49359C21B7/00C21B7/16
Inventor 艾伦·J·麦克雷
Owner 艾伦·J·麦克雷