US 4,566,890 AGranted

Self purging fin cooler

AssigneePPG Industries, Inc.

InventorsJonathan E. Hostler, Richard P. Beaver

Life of this patent

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Abstract

A self purging fin cooler for use with a glass fiber forming bushing assembly is disclosed. A fin cooler header block is provided with a flow channel for coolant flow and a separate flow channel for cleaning liquid flow. A plurality of cleaning liquid distribution passages extend from the cleaning liquid flow channel to spray nozzles positioned between adjacent cooling fins that extend outwardly from the header block. Each spray nozzle produces a flat, fan shaped spray of cleaning liquid which removes contaminants that accumulate on the tops and sides of the cooling fins. A flow control valve assembly and frequency and duration timers are utilized to provide a controllable cleaning liquid spray frequency and duration. During non-spray periods a low volume of cleaning liquid to the spray nozzles insures that the nozzles will not become clogged.

Claims12

Dependent claims

A self purging fin cooler useable with a glass filament forming bushing, said self purging fin cooler comprising:

a fin cooler header block having a coolant liquid flow channel, a separate cleaning liquid flow channel, and a plurality of spaced, parallel cooling fins affixed at first ends to a front face of said header block and extending outwardly therefrom;
means to flow coolant liquid through said coolant liquid flow channel and means to flow cleaning liquid to said cleaning liquid flow channel;
cleaning liquid distribution passages extending from said cleaning liquid flow channel and terminating at said front face of said header block with one of said distribution passages terminating between each two adjacent ones of said cooling fins;
a removable spray nozzle secured in each of said liquid distribution passages at said front face of said header block;
and
means to intermittently supply cleaning liquid at high pressure to said spray nozzles for impingement against said cooling fins.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/682,401Filed 17 Dec 1984
Granted: 28 Jan 1986
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

C03B 37/0206
Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices: by contacting of the fibres with liquid or mist
C03B 37/02
Manufacture of glass fibres or filaments: by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
F28F 1/24
The means being only outside the tubular element: and extending transversely
F28G 1/16
Non-rotary, e.g. reciprocated, appliances: using jets of fluid for removing debris