US1134793A - Air-feed for furnaces. - Google Patents

Description

E. WINANS. AIR FEED FOR FURNACES.

APFLICATIONFILED MAR. 16, I914.

Patented Apr. 6, 1915.

Edwin WIT/V5885? EDWIN WINANS, oF-Nnw YORK, N. Y, AssIGNoR T CLARKE D. nAsHER, or NORTH GERMANTOWN, NEW YORK.

AIR-FEED FOB. FURNACES.

Specification of Letters Patent. Patented Apr. 6, 1915.

Application filed March 16, 1914. Serial No. 825,110.

To all whom it may concern: Be it known that I, EDWIN VVINANs, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, countyand State of New York, have invented a new and Improved Air-Feed for Furnaces, of which the following is a full, clear, and exact description. r

This invention relates to improvements in air feeding devices for furnaces, and has for an object to provide an improved structure which may be readily inserted into furnaces for supplying the heated air thereto so as to cause a better 'combustion'of the gases evolved from the gases in the furnace.

Another object of the invention is to provide an air feeding device for furnaces which may be built, into the furnace or may be added to the furnace at anytime.

In carrying out the object of the invention the device may be arranged in' any kind of furnace desired. In arranging the device J the distributing members are preferably mounted on the bridge wall of the furnace so that the air therefrom may be mixed with the gases that usually pass up the chimney unburned and cause a combustion thereof. The distributing member comprises one or more cross members and preferably a pair of uprights, all of which are provided with apertures through which the heated air escapes. A feeding pipe is connected with the distributing members and extends preferably from the rear of the furnace either through the wall or through the rear chamber of the furnace, whereby the heat passing therethrough will become heated before it reaches the point of discharge. This air may be'forced in under any desired pressure so as to provide any desired amount of air to miX with the gases.

In the accompanying drawings Figure 1 is a longitudinal vertical section through a furnace provided with an embodiment of the invention; Fig. 2 is a transverse View of the furnace shown in Fig. 1.

Referring to the accompanying drawings by numeral, 1 indicates a furnace of any desired kind provided with a combustion chamber 2 and a rear chamber 3 through which the smoke, gases and various products of combustion pass before escaping through the flue. The boiler 4 is of course exposed to both the chambers 2 and 3 so as to be heated by the fire or hot products of combustion therein. During the ordinary operation of thefurnac'e the fuel in chamber 2 burns in the usual manner, and is supplied with air in the usual manner for supporting combustion. A flame passes upwardly and longitudinally along boiler t-until the same reaches the flue. A suitable bridge wall-5 is providedrin order to cause theflame to travel near the boiler Land thus allow the boiler to' absorb heat therefrom. -During the ordinary operation ofv the furnace'it has been found that a large part of the gases evolve from the fuel in chamber 2 and pass out fiue'in a heated conditiom'but-are not consumed. In order'to cause the proper consumption or burning of this gas. air is supplied through pipe 6 and the distributing member 7 which mixes with the gas just mentioned and provides a suflicient amount of air to cause the gas to ignite and" thus lengthen the flame from chamber 2. The pipe 6 passes preferably through chamber 3 so that the air discharged out of the distributing member 7 is heated to substantially the same temperature as the hot gases, whereby the air will properly unite with the gases in order to support combustion.

If cold air was discharged into the hot gases there would be no chemical affinity between the cold air and the hot gases. and the result would be clouds or blocks of air and gas discharged out of the chimney without having produced any beneficial results. By heating the air so that there will be a chemical union sufficient to provide a proper combustion the gases are consumed which results in the production of additional heat in chamber 3. The burning of the gases and various usually unburned products of of gases and also in a direction opposite the flow of gases, though other desired arrangements could be made. The end supports 9 are. provided with tubular uprights 10 which are also provided with apertures for discharging air. Preferably, only one transverse distributingbar or tube 8 is used, but if desired several of the same may be connected up in order to supply a greater amount of air in small jets. The idea is to distribute the air in various small jets so as not to insert large amounts of air into a given quantity of gas asv the same will not readily mix in that way. The pipe 8 and the associated parts are preferably made from cast iron: or other suitable material which will Withstand the heat. It is to be noted. that the various: parts embodying the invention are designed to be placed on the bridge wall or other suitable structure and not to be built therein so: that the device may be applied and removed at any time, and may be readily inserted into furnaces now in use.. order to properly clean the air distributing member 7 a suitable steam pipe may be connected with pipe 6', and steam under pressure may be: turned on to pipe 6. When this is: done a valve in pipe 6 is preferably shutso that the steam will be forced to pass outwardly through the apertures in member 7. It is. to bev under stood of course when steam? is used such use is for cleaningpurposes and blows out, the

smoke; and foreign matter from the apertures in member 7.

What I claim is In an air feeding device for furnaces, an insertible air distributing member formed of a plurality of pipe sections, a plurality of upright sections connected with certain of saidv first mentioned sections, a plurality of connecting ring members for said first mentioned sections, means extending from said ring members for supporting the same whereby a flame may pass over and under the air distributing members, all of said sections and said rings being perforated, and means-for feeding air in a heated condition to said air distributing member, said air distributing member being in the direct path of the flame acting as a superheater for said air whereby the air is distributed in small-jets at approximately the same temperature as the hot gases for more readily forming a chemical union therewith.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWIN WINANS. Witnesses:

LAURA 1 PALMER,- OIiA-RKE D. LASHER.

Gopies 032 this patent-may beobtained for'fiize cents each, by addressing the f Gommissioner of Patents, Washington, D. G.

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