US1231276A

US1231276A - Boiler-cleaner.

Info

Publication number: US1231276A
Application number: US5361815A
Authority: US
Inventors: Frank Mcilvane
Original assignee: Diamond Power Specialty Corp
Current assignee: Diamond Power Specialty Corp
Priority date: 1915-10-01
Filing date: 1915-10-01
Publication date: 1917-06-26
Anticipated expiration: 1934-06-26

Description

FJMCILVANE.

BOILER CLEANER.

APPLICATON FILED OCT. I. 15H5.

SHEET l.

Pzlened June 2 S H EETS F. McHJ/ANE.

BOILER CLEANER.

APPLICATION FILED om. 1. 1915.

2 SHEETSASHEET 2,

rfnin'n MerLvalvn, or DETROIT, MICHIGAN, Assrsnon To niaivicnn retiren srnornn'r i COMPANY, or DETROIT, MICHIGAN, A oonronerron or iniciara-an".

'ok all 'whom t may concer/1L.'

V,Bef it known that I, FRANK ltcILvANE,

a tizen of the United States of America, Hresid ing` at Detroit, in the county of `Wayne and State of Michigan, have invented certainnew and useful Improvements in Boiler- Cleaners, of which 4the following is a specifb cation, reference being had therein to the accoinpanying Vdrawings.

The invention relates to boiler cleaners of that type in which the soot is removed from the tubes and other surfaces by jets of steam blown from a perforated pipe or header. lt is the object of the invention to overcome injury to the apparatus, due to expansion and contraction, and to this end the invention comprises the construction as hereinafter set forth.

ln the drawings:

Figure l. is a plan view showing my improved construction as applied to a boiler;

Fig. 2 is a vertical cross section thereof; and

Fig. 3 is an enlarged section through the furnace Wall at the point of entrance of the cleaner.

A are the Walls of the furnace, and 'B are a series of tubes or iiues forming a portion of the boiler. Heretofore such construction of boilers have been provided with cleaners comprising a pipe or header extending through the furnace wall, and having a series of nozzles or jet openings for directing steam against the tubes. The jets are di rected along .different portions of the surface of the tubes bv a rotary movement of the header, which is imparted through 'the medium of a hand-Wheel outside of the furn nace Wall. j

One difficulty that has been experienced with apparatus ofthis type is the differential expansion and contraction which causes the warping or bending of the parts. Thus 'the coefficient of expansion of the metal differing' from that of lthe furnace Wall will produce a relative displacement, and Where, as is generallyithe case, there are support ing hearings for the cleaner which are attached to the boiler tubes, a distortion is produced. l have overcome this defect by a floating construction, in which the cleaner is free' to move with the tubular structure Von which it is journaled, While at the saine time provision is made for extending the header through the furnace Wall Withoutin terference with its freedom of movement.

Specification of Letters latent.

BOILER-CLEANER.

Patented dune 26, ttlll'.

Application filed etober 1, 1915. Serial No. 53,618.

ln detail, C is the tube or header extend` ing transversely of the furnace adjacent to the tubes l, and having' a series of jet nozzles l.) projecting laterally therefrom. E is a supporting journal bearing for the header which is secured to the tubular structure by suitable means, such as the ,clamps F. A plurality of these bearings are provided suitably distributed to sustain the header independently of any other support. F' is a sleeve or bushingt in the 'wall A forming an opening; for the passage of the header, the diameter of this opening` being; suflicientlyy greater than that of the header to permit relative lateral movement. a disk-shaped head mounted upon the header and engaging au annular recess l-i in the sleeve, preferably :formed in a lateral ex-n tension l thereof, having a closing' cap d.

The arrangement is such that the disk (i. which closely lits the header jf), also bear.,- against the inner face of the cap d, closing. the opening l therein, which is larger than the header C. Thus 'where there is anexoansion of the internalstructure the header is moved in rela-tion to the Walls, 'this movement being permitted Without binding or unsealing' the opening' through said wall.

The header C is provided with afhand- Wheel L, arranged outside of the furnace, by means of which it may be rotated to sweep the jets over 'the surface of the tubes. is a stuffing box forming the swivel conn nection between the header and an external conduit N, and (l is a flexible conduit connecting; the conduit N with a supply con duit l). This flexible connection permits the header te lmove without restriction from the supply conduit, which might otherwise interfere with its freedom of movement.

1What l claire my invention ic l. rlihe combination with a :furnace Wall provided With an aperture, of a tabular boiler, a cleaner comprising, a tubular'header passing; through the aperture in said 'wall with clearance therein, `said header being mounted upon and adapted to doet with the tubular boiler, and means for sealing the aperture around the header in said Wall.

2. rl"he combination with a furnace. Wall provided with an aperture, of a tubular boiler, a cleaner comprising a tubular.k rotary header extending through the aperture in said wall and mounted upon and adapted to float With said boiler, stationary supply conduit, anda flexible connection between said stationary supply conduit and said header.

3. The combination with a furnace Wall provided With an aperture, of a tubular boiler, a cleaner comprising a tubular header extending through said aperture and mounted upon and adapted to float With said boiler, a bushing Within said aperture form ing an opening of greater diameter than said header, through which the latter passes, means for sealing the opening through said bushing, and means exterior to said Wall for actuating rotation of said header.

4. The combination with a furnace Wall Yprovided With an aperture, of a tubular allowing lateral motion of the disk and header.

5. The combination With a furnace Wall providedwith an aperture, of a tubular boiler, a tubular Irotary header mounted in journal bearings upon saidboiler and eX-v tending outward through 'said aperture, a bushing in said aperture of greater diameter ythan said header and forming a clearance space thereabout, a recess being formed in the outer end of said bushing, a cap closing said recess formed with an opening through which the header extends, said opening allowing lateral play of theheader, and a collar on the header 'Within said recess for sealing the opening in said cap.

In testimony whereof I affix my signature in presence of two Witnesses.

4ERANK MUILVANE. Witnesses: y l

W. R. LOBDELL, S. J. HERMAN.