US521874A - Automatic boiler-cleaner - Google Patents

Description

l(No Model.) 2 Sheets-Sheet 1.

' A. L. BAUHARD.

AUTOMATIG BOILER CLEANERr No. 521,874. Patented-June 26,1894.

HHHHP 19321D1735? l Y W ifgasscs AAAAAAAAAAAAAAAAAAAAAAAAAAAA wmv.

NNNNNNNNNNNNN c.

do Model.) 2 sheets-#sheet 2.

A. L. `BAUHARD.4 AUTOMATIC .BOILBR GLEANBR.

No. 521,874. Patented June 26, 1894.

Wiigesscs UNITED STATES' PATENT OFFICE.

`ALVIN L. BAUHARD, on BEIsToL, TENNESSEE.

, AUTOMATIC BQILER-CLEAN ER.

SPECIFICATION forming part of LettersPatent No. 521,874, dated .Tune 26, 1894.

Application filed June 14,1893- `Serial No. 477,567. (No model.)

To all whom it may concern.-

.13e itknown that I, ALVIN L. BAUHARD, a citizen of the United States, residing at -Bristol, in the county of Sullivan andv State of Ten` nessee, have invented a new and useful Automatic Boiler-Cleaner, of which the following is a specification.'

My invention relates to boiler-cleaning apparatus designed to receive the foul water, scum, &c., from the upper levels in the boiler and convey the same into a precipitator. in

which the impurities are precipitated and.

drawings, the novel features thereof being particularly pointed out in the claims.

In the drawings: Figure l is a sectional view of a boiler and boiler-cleaning apparatus attached thereto in operative position,

the direction of circulation through the boiler and precipitator being indicated by darts. Fig.\2 is a detail view in perspective of the accumulatoror skimmer, which is located in the boiler at the inlet end of one of the circulating pipes. Fig. 3 is a sectional view enlarged of the precipitator.

Similar numerals of reference indicate corresponding parts in all the figures of the draw- Ings.

It is well known that .the water in a boiler, as soon as it becomes heatedl to a certain temperature, circulates from the point of great,-

-est heat to that of least heat, and thus concommunicates directly with the top of aA prelcipitator 2, which is substantially cylindrical in form, the pipe extending down thereinto below the surface of the water and being provided With an atomizer or sprayer 3. A second circulating pipe 4 communicates with the boiler near its bottom, and with the precipitator at a point adjacent to the top. The pipe l is designed to convey the rvimpure water to the precipitator, and the pipe 4 is designed to convey the purified water back to the boiler, as indicated by the arrows in Fig. 1, both pipes being provided with suitable valves 5.

The precipitator is provided with an inverted conical bottom 6, with the apex of which is connected a blow-off pipe 7, having a suitable valve 8, and Vconnected to theinlet end of the supply circulating pipe 1, is an accumulator 9, consisting of a sleeve or hub l0, provided with radially-disposed wings 1l, which extend for about one-half their lengths below the lower or inlet end of the pipe and are separated to allow a free passage through the pipe.

This being the construction of my improved boiler cleaning apparatus, the operation thereof,briefly stated, is as follows: The scum which accumulates at the rear end of the boiler is attracted by the accumulator andis guided by the radially-disposed wings thereof `to the inlet end of the supply accumulating pipe, whence they pass to the precipitator and are finely divided in escaping through the atomizer. The temperature of the contents of the precipitator being-a few degrees lower than those of the boiler, the impurities are caused to fall and settle in the conical or funnel-shaped bottom ofA the precipitator, from which they may be blown at intervals by the pressure in the boiler. The purified water passes from the precipitator through the return-pipe 4 to the boiler, thus making room for the impure water lwhich is introduced through the pipe l. f It will be understood that this circulation of` water from the boiler through theprecipitat-or and back to the boiler is continuous, and the temperature of the water is but slightly reduced in its passage.

'Ihe construction of the apparatus as described is simple and effective, and may be inexpensively manufactured. The precipil vtator is provided, near its base, with a lateral IOO 1. In a boiler-cleaning apparatus, the comr bination with a precipitator, a pipe leading thereto from the boiler, and a pipe leading therefrom to the boiler, of an accumulator attached to the inlet end of the pipe leading to the precipitator and comprising a sleeve 10 fitted snugly upon the end of said. pipe, and radially-disposed Wings ll secured at their inner edges to the sleeve depending be` low the plane of the inlet end of the same and separated at their adjacent edges below said inlet end to form a passage, substantiallyY as specified.

2. In a boiler-cleaning apparatus, the com bination with a precipitating chamber, a pipe leading thereto from the boiler, and a pipe leading therefrom to the boiler, said chamber f having a funnel-shaped or conical bottom with a blow-oit pipe connected to its apex, of an accumulatorattached to the inlet end of the pipe leading to the precipitator and having radially-disposed wings to guide the iloating impurities to the said inlet end, andan atomizer connected to the discharge end of the same pipe to which the accumulator is connected, said atomizer consisting essentially of a perforated receptacle or basket 3, having no outlet except through its perforations, whereby the contents of the pipe are lfinely divided as they are discharged into the precipitator, substantially as specified.

In testimony that I `claim the foregoing as my own I have hereto afxed my signature in the presence of two Witnesses.

ALVIN L. BAUI'IARD.

Witnesses:

W. D. KENNEDY, J. A. DANIEL.

Images