US1187758A - Blower for upright water-tube boilers. - Google Patents

Description

APPLICATION FILED JULY 23. i914.

Patented June 20, 1916.

5 SHEETS--SHEET THE COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

J. MAGEE.

BLOWER FOR UPRIGHT WATER TUBE BOILERS. APPLiCATlON men JULY 23. 19:4.

Patented June 20, 1916.

- 5 SHEETS-SHEET 2.

THE COLUMBIA PLANoanAPH co, WASHINGTON, u. c.

J. MAGEE.

BLOWER FOR UPRIGHT WATER TUBE BOILERS.

APPLICATION FILED JULY 23.19 14.

Patented June 20, 1916.

5 SHEETS-SHEET 3- 1. MAGEE.

BLOWER FOR UPRIGHT WATER TUBE BOILERS.

APPLICATION FILED JULY 23. 1914.

Patented June 20, 1916.

5 SHEETS-SHEET 4- THB' COLUMBIA PLANouRAPu co., WASHINGTQN, n. c.

I. MAGEE.

BLOWER FOR UPRIGHT WATER TUBE BOILERS.

APPLICATION FILED JULY 23, I914.

5 SHEETS-SHEET 5.

Patented June 20 THE COLUMBIA PLANouRAPH C04. wAsmNa'roN. n. a

JOHN MAGEE, OF DETROIT, MICHIGAN.

BLOWEE FOR UEIGHT WATER TUBE BOILERS.

Application filed July 23, 1914.

To all to 710m it may concern Be it known that 1, Joan Maonn, a c1 t1- zen of the United States of America, reslding at Detroit, in the county of Wayne and State of Michigan, have invented certam new and useful Improvements in Blowers tor Upright Water-Tube Boilers, of which the following is a specification, reference being bad therein to the accompanying drawings.

In boilers of the upright water tube type having. the usual exterior setting and battling means whereby the products of combustion are returned after passing over one sec tion of the tubes along another section, such for example as boilers known as the \Vickes type, it is diliicult to properly clean or blow soot from the water tubes because of the height to which the boilers are carried and because of the inaccessibility or the tubes to an ordinary hand blower.

This invention relates to a system for blowing boilers of the upright water tube type whereby all portions of the water tubes are readily cleaned and swept and whereby the operator can control the cleaning process regardless of whether the boilers are dis posed single or in batteries or are close to walls of adjoining structures.

The il'ivention consists in the matters hereinafter set forth and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a view in elevation. partially broken away, of a boiler ot' the upright tube type equipped with a blower system that embodies features of the inven tion; Fig. 2 is a. view in transverse section taken on, or about line lI-II of Fig. 1; Fig. 3 is a. View in section taken on or about line Ill-Ill of Fig. l with one of the blower elements withdrawn; Fig. 4 is a View, par tially in elevation and partially in section, of a modification of the system that may be used preferably where the boiler is one of a battery or is adjacent other structures; and Fig. 5 is a View in cross section taken on line V-V of Fig. l, the modification shown herein being also applicable to part of the system in corresponding position in Fig. 1.

Referring to the drawings, a boiler of the W'ickes type is provided with a series of water tubes 1 in upright spaced relation on one side of a central baffle 2 and a corresponding set 3 on the other side oi the ba'llle, the whole being inclosed in a suitable setting llll'ldt is, usually cylindrical. In the usual itorm o'l' Specification. of Letters Patent.

Patented June 2d, 191%.

Serial no. 852,768.

construction shown in Figs. 2 and 3 with a boiler that has plenty of working space around it, a blower unit is provided near the upper part of the boiler that consists of a header passing transversely through one side of the setting and the bathe 2 and having jet nozzles 6 that are arranged to direct jets across and between the banks of water tubes. '1. his header is rotatably secured in an end. fitting 7 and an outer journal 8 and is provided with a suitable stu'l'ling box 9 from a supply pipe 10, a wheel 11 being arranged to turn the header in the fittings. If the header is at considerable height the wheel may take the form of a sprocket or chain pulley with a pendant endless flexible member 12 whereby it may be mani mlated. This header may likewise be jacketed by refractory material such as asbestos or the like or may be arranged with a water acket for circulation of a cooling medium therethrough.

Near the lower portion of the boiler and at a slight distance from the lire arch a pair of cleaning openings 13 in the casing permit the entrance of jet pipes ll that are adapted to be moved inwardly into transverse relation to the water tubes so that jet nozzles 15 may project steam brushes or jets between and across the water tubes and ell ectively clean them when the headers 14: are turned. The llBlHllGl'S may be supported by any suitable connection leading from the pipe 10 that supplies the upper headers or from other suitable steam connection with the boiler. herein indicated bracket plates 16 have bearing members 17 in which bracket arms 18 with suitable brace rods 19 swing in substantially horizontal planes, the bracket arms being tubular and being connected through suitable swivel joints 19 and other fittings, branches and PS with the steam pipe 10. Swivel joints and stuiling boxes :20 from which the arms 14 project in such manner as to be rotated by a hand wheel 21 are supported by arms 22 whose inner ends are hinged by swing joints 23 with the bracket arms 18. as a result of this disposition the arms 14 may bedrawn in and out of the boiler and manipulated readily to clean the entire surface of the water tubes.

Where the space necessary for the withdrawal of the arm 14L is lacking, the construction indicated in Fig. l is used in which an obliquely disposed pipe 24 carries a rothereon as in the other construction. In such instances a swing arm 31 with. swivel joints 32 and 33 connects the arm with the lmain line 28 and permits'the upward withdrawal of theheader from the tube space, the cleaning opening being arranged .to

give the proper clearance forthis maneuver- As also indicated in Fig. 4 the system may have at the upper portion of the boiler a pair of parallel headers 34 suitably jour- .naled in fittings 35 and 36 on opposite sides of the boiler baflle 2, each. being suitably connectedtothe steam line-and each having a hand wheel 37 with chain connection if desired whereby they may be'manipulated. It is to be under'stoodkthat the fittings whereby the connections are made maybe ofstandard type or may be of special construction, as for example, the hollow bracket 38 used to support the hand wheel end of the rotatable blower. Such bracket has a suitable bearing plate 39 that is readily secured to the boiler. 'While the handwheel or chain pulley lies between the hollow arm and the bearing plate and thereby does not bring any strain upon'the header that tends to shift it in position when it is being 7 manipulated.

As a result of this construction a blower system is obtained that sweeps the entire surface of the water tubes in both the-up and down passes of the boiler and which at the lower hotter end has members that may be withdrawn from the setting and thereby c be protected from the furnacegases when they are not in operation. The jackets of theupper fixed rotatable headers are'sufiicient to avoid any trouble where the gases are cooler. As the outer connections maybe arranged to occupy little space the system I isparticula'rly effective for use on batteries of boilers or on a boiler that stands in a restricted place.

Obviously, changes in the details of concop lesol th lepat ent may be obtained-tor struction may be made without departing from the spirit of my invention and I do not care to limit myself to any particular form or arrangement of parts.

What I claim is 1. In a boiler having upright water tubes, the tube space being divided into passes, a blower system comprising rotatable jetting means extending across the tube spaces remote from the furnace, means for rotating the jetting means whereby the jets sweep the adjacent tubes, angularly adjustable jetting headers rotatably mounted on the boiler and adapted to be moved bodily in and out of the passes nearer the furnace, and connections for supplying fluid under pressure to the several jetting members.

2. In a boiler having upright water tubes, a setting inclosing the tubes, and a bafiie dividing the tube space into passes, a blower system comprising rotatable headers provided with jet openings, means for mountingv the headers in the setting, transversely to the tubes and across the passes, means for supplying fluid under pressure thereto,

means for turning the headers, extensible connections articulated to the fluid supply means, rotatable jetting headers secured to the connections and adapted to be moved in and out of the tube spaces and means' for manipulatig the jetting headers.

3. In a boiler having upright water tubes and a battle extending in the direction of the tubes and forming gas passes on each side of the baflie, rotatable headers provided with etopenings, means for mounting the headers transversely acrossthe passes at points where they are not affected deleteriously by the gases of combustion from the furnace, means for supplying fluid under pressure to the headers, extensible connections articulated to the fluid supply means, rotatable jetting headers secured to the connections and adapted to be'moved in and out of the tube spaces in the hotter zones of the boiler, and means for operating the several headers. In testimony whereof I afiix my signature iii presence of two witnesses.

JOHN MAGEE. Witnesses G. R. STICKNEY, ANNA M. Donn.

five cents each, by addressing the Commissioner of Patentv Washington, D. O.

Images