US1823358A - Burner system - Google Patents

Description

W. A. HAVEN BURNER SYSTEM F'led DEC. 29, 1928 2 Sheets-Sheet L sept. 15, 1931.`

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Filed Dec. 29, 1928 2 Sheets-Sheet 2 Patented sept. 15,Y 1931 PATENT OFFICE WILLIAM A. HAVEN, or 'YoUNGs'rown 01110 BURNER SYSTEM Application filed December 29, 1928. Serial No. 329,135.

The present invention relates broadly to theart of pressure burners, and more particularly vto an improved pressure burnersystem' especially adaptedfor use in connection 'iwith the operation of stoves provided for heating the blast. o l

lOne of the objects of the present invention is to provide a burner system which is operated under normal conditions in predeterlf mined Vdefinite relation both to the stoves and to the furnace to whichthe stoves supply the heated air.' l y Another objectl of the present invention is to provide ya burner system so interconnected to thesupply lines for the stoves as to be automatically operated under normal conditions in accordance Vwith variations of conditions existing therein. V v

Still another objectV of the `invention is to so interconnect a pressure burner for a stove 'with one of `the pressure lines supplying the stove as to insure subjecting both the stove and burner to similar variations of pressure conditions, the system further'including yconnections whereby pressure conditions in the furnace and in the stove are properly correlated. v e

At thev present time it is customary. inthe artto which the present invention relates to supply gas fromk a-suitable dust catcher and washer to a plurality of stoves and to supply air to such stoves from a suitable cold blast main and hot blast main. In accordance with the present invention, I preferably utilize the pressure conditions existing in one of said mains orv controlling the operation` of the burner system for the stoves.i In this manner variations inthe pressure yconditions in the main so utilized are automatically reflected in the burner system.

Inwthe accompanying drawings I yhave shown for purpose of illustration only a pre-V ferred'embodiment of the present invention.

In the drawings, Figure'. 1 is a 'diagrams matic plan view illustrating'aburner system in accordance with the present invention, and

Figure 2is a longitudinal sectional view through one orm of burner.

ly existing in the operation of stoves of the tions in the hot blast main.

In accordance with conditions customari-y character herein contemplated, there may be provided a dust catcher 2 having a gas main 3 leading therefrom to one or more auxiliary water seals 4, which in turn discharge into a washer 5. A main 6 leads from such washer 55 through one or more water seals 7 into a gas main 8 extending in proximity to a series of stoves 9, any desired number of which may be provided at will.

y Extending in any desired relation to the gas main 8 is a cold blast main 10 adapted to receive a supply of cold air under pressure from any desired sourse, as indicated at 11, controlled by a snort valve 12. This main has a connection 10 to each of the stoves 9.

Cooperating with each of the stoves is a burner 13 having air under pressure supplied thereto either through a connection 14 from the cold blast main 10, or a connection 14 from the hot blast main hereinafter described, each of these connections being pro vided Awith an individual burner controlling valve 15, and cut off valves 15. Each of the burners 13 is further provided withl a connection 16 with the gas main 8, there being a controlling valve 13 for each burner. f By reason of these connections, it will be apparent that the supply of gas and air to the burners 13 bears under normal conditions a denite and predetermined relation tothe pressure conditions existing respectively in the gas main and the cold blast main.

Each of the stoves has a valvecontrolled outlet connection 17 With a hot blast main 18 leading to a furnace 19, and a chimney valve C. V. as customary. A mixer pipe 2O extending between the cold blast main 10 and the hot blast main 18 may be pro-v vided for controlling the temperature condi- 9 To facilitate this control the mixer pipe may be provided with 'a regulating valve 21.

As illustrated in detail in Figure 2 of the drawings, each of the burners 13 may be 95 of the quasi-aspirating and mixing type, using a diffuser 22 suitably positioned within the burner casing 23. The gas connection 16 communicates with the casing rearwardly of the diiuser. Each of the burners also has .-lines, it being held in adjusted a main air inlet 24 extending rearwardly through the casing and carrying a sleeve surrounding a portion of the diuser and carrying the same through the medium of a Spider 25. Extending into this air inlet is the pressure connection 14, preferably provided with an adjusting sleeve 26, by means of which its point of termination relative to the .diffuser 22 may-*be varied at will. The main air inlet is likewise preferably adjustable lengthwise of the casing asv indicated in brokenr means of a suitable set screw 24C. v, l A

In operation, the supply of air under pressure through each of the conneetionslt will tend to draw into its casing 23 a certain quantity'of secondary air through the -inlet 24 and a certainq-uantity of gas through the inlet 1 6, these quantities varying in accordance with the position ofthe adjusting 'sleeve 26, and with the pressure conditionsin the connections 154, it being apparent lthat the greater the pressure the moreI effective will be the aspirating action produced on both the air and gas. yIn this manner, a supply of'air- .and gas to each of the burners is stove in they formv of parallel streams.

maintained in exact accordance the pressure conditions existing in. the'lmain from which the aspirating pressure is taken.' While I yhave herein indicated4` this press/ure as being taken from the cold blast main, it will be apparent that I' may, it desired, utilize the pressure conditions'within they hot blast main 18, forl this purpose. i

rEhe air and gas 'in' passing over the diffuser 22fare Ythoroughly intermingled and pre-mixed to prevent their passage'jinto; tpe n this manner Amore efcient combustion conditions without danger of detonation are insured, thereby enabling use of full head of' `this sleeveYL terminate gas. By the use of thev ad lsusting sleeve the. point of termination of the high pressure air may be varied, itbeing desirable that, at suchy a point within the casing thatthe air i's driven forcibly into the gas -stream to effect, in combination with the diffusing structure illustrated, a more effective intermingling of the combustion ingredients,

As -is customary in the art, I may provide a by-pass connection 27' extending Ifrom the' gas main Sto the gas main 8 and controlledY y a val-ve 28. This by-pass-may be utilized' for` delivering gas directly fromH the main 3' to the main 8 in case ofnecessary .shutdQWIl 0f the washerl 5'.

In the use of a system of the character herein disclosed, the usual practice. will be followed with respect to the reversal of the stoves. It may bev assumed, for example, thatthe stove A issupplying heated airl to the hot blast mainglS, and'fthat the stoves B', andD are ,being heated preparatory to the passage vof air therethrough. In such position by ferre'd embodiments of my case, the valve in the connection 10 to the stove A will be opened as will also the valve in the connection 17 to the hot blast main, thereby permitting air from theV coolingblast main to pass through the previously heated checkerwork in the stove into the Combustion Zone and thence through the connection 17 to the hot blast main.` v'Ille valves 13' and 15 'for the stove A will, at this time, be c-losed, inasmuch as the burner which was previously utilized toI heat the stove will now be out or" operation Y Exactly the opposite condition will exist relative to the stoves B, C and D. The respective valves in the connections 10 and 17 will be closed, While the valves 13 and l5 to each ot these stoves will be'open so that the stoves may be heated bythe burners preparatory to the passage oiair therethrough;

The stove B i'sshown'brolen away to illustrate diagrammatically the larger portion thereof provided with checkerworl, with the combustion z one laterally disposed with respect thereto. The connect-ions 10f from the coldv blast main in each instancelead:I into the checlrerworkV chamber as vit is desired to pass cold air first through the checkerwork and then through the combustion zone into t-he hot blast main. The burners 13,'off' course, are so vdisposed as to be'y effective directive-ly and initially in the combustion chambers of* the stoves. i

After a predetermined/period of, time, the connections may be changed so that the stove A will be heated along with the stoves @and D, while the previously heatedstove'B will receive a supply of; 'cold air andheat the same preparatoryto 'its-1 discharge into'the hot blast main. By proper control ofthe connections, each stovemaybe heated for any desired period prepa-ratoryto itsuti'lization in. turn? as a heating means io-r the air to the hot blast main. a f

' To theses-killed in the art it will be apparent that a system ot the character described: is effective for maia iiitaining under normal condi-tions a burner operation which is correlated as to eiiiciency with the` rest'o the system, and insuring a supply ofE combustioningredientstoA each off'the stoves.v in accordancef`with variat'ons in pressure; in the mains with which these'stcves'are connected.v It will also be apparent thatfin case of operation ofI the snort valve 12, as desirable at predetermined"intervals for, reducingpressure conditions within, the furnace, or'- for any other purpose, the burnersandthe;l stovesv are' simultaneously subjected to decreased pressure conditions, therebyk keeping` their operationin step with the desired tcondi-'tiens inthe l'iurnace.4 i V V While I haveherein illustrated certain preinvention, it will, beapparent that the drawings do notlin-ait the, invention, either withV respect-to thesysvariations in the main.

,tem with which it is used or the type of burner employed, inasmuch as changes in the construction, relationship and operation of the parts may be made without departing either from the spirit yof the invention or the scope of my broader claims.

I claim:

l. In a burner system, a stove, a burner therefor, a cold blast main connected with said stove, a second main connected with said stove, and a fuel controlling connection between one of said mains and said burner.

2. In a kburner system, a stove, a burner therefor, a cold blast main'connected with said stove, a hot blast main connected with said stove, and a fuel controlling connection between yone of said mains and said burner.

V3. In a` burner system, a stove, a yburner therefor, a cold blast main connected with said'stove, a gas main connected with said stove, anda fuel controlling connection between said cold blast main andy said burner.

4L. Ina burner system, a furnace, a stove for delivering a heated blast to said furnace, a burner for said stove, a cold blast main for said stove, and connections for varying the fuel supply to said burner in accordance with pressure of said cold blast 5. In a burner system, a stove, a furnace receiving a heated blast therefrom, a mixing burner for heatingsaid stove, a cold blast main for delivering air to said stove, and connections between said main and said burner for varying the fuel supply to the burner in accordance with the` pressure in the main.

6. In a burner system, a stove, an aspirating burner cooperating therewith and havf ing a gas supply connection and an air supply connection, a cold blast main, and means interconnecting said main and burner for producing an air and gas flow to said burner in accordance with pressure conditions in the main.

7. In a burner system, afurnace, a plurality of stoves operatively connected thereto, a burner for each of said stoves, a. cold blast main, and a fuel controlling connection between said main and each of said burners.

8. In a burner system, a furnace, a plurality of stoves for supplying a hot blast thereto, a. burner for each of said stoves, a hot blast main for receiving heated air from said stoves, a cold blast main for delivering air to said stoves, and a fuel controlling connection between one of said mains and each of said burners.

9. In a burner system, a furnace, a plurality of stoves operatively connected thereto, for individually or collectively delivering a heated blast to the furnace, a burner foreach of said stoves, a cold blast main cooperating with all of said stoves, and a fuel controlling connection between said main and each of said burners, each of said burners being of the mixing type.

10. In a burner system, a furnace, a hot blast main, a cold blast main including a snort valve, a stove connected to said hot blast main and said cold blast main, a burner for said stove, and a fuel controlling connection for said burner intermediate said snort valve and said furnace.

1l. In a burner system, a furnace, a plurality of stoves for supplying hot blast thereto, a burner for each of said stoves, a hot blast main connected to each of said stoves to receive-heated air therefrom and deliver the same to the furnace, a cold blast main connected to each of said stoves for delivering cold air thereto, and a fuel controlling connection between one of said mains and each of said burners.

In testimony wherof I have hereunto set my hand.

WILLIAM A. HAVEN.

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