US778459A - Apparatus for feeding anti-incrustation fluid into boilers. - Google Patents

Description

NO. 778,459. PAITENTBD DEC. 27, 1904.

, A. MQWILLIAMS. APPARATUS FOR FEEDING ANTI-INORUSTATION FLUID INTO BOILERS.

APPLICATION FILED APR. 27. 1903.

wrrwaSsss NVENTOR W1" i I ATTORN EYS UNITE STATES Patented December 27, 1904.

PATENT OFFICE.

APPARATUS FOR FEEDING ANTI-INCRUSTATION FLUID INTO BOILERS- SPECIFICATION forming part of Letters Patent No. 778,459, dated December 27, 1904.

Application filed April 2'7, 1903. Serial No. 154,501.

To all whom it may concern.- v

Be it known that I, ALEXANDER MoWIL- LIAMS, a subject of the King of Great Britain and Ireland, and a resident of Mickleover, in the county of Derby, England, have invented a certain new and useful Apparatus for FeedingAnti-Incrustation Fluid Into Boilers, (for which I have applied for a patent in Great Britain, said application being numbered 381 and dated January 7 1903,) of which the following is a specification.

' The objects of my invention are to provide an improved device or apparatus that will admit of boiler fluid of any kind (hereinafter referred to as the fluid) for softening the water and preventing incrustation, being passed therein while under full pressure of steam, so that either a regular or intermittent flow of fluid may be passed into the boiler and mixed with the water, and so insure the greatest possible benefit being derived from the fluid, or any given quantity may be fed to the boiler at any desired intervals, a further object of my invention being to provide a sight-feed in connection with such apparatus or device, as hereinafter described.

Referring to the drawings, which form part of this specification, Figure 1 is a front elevation, partly in section, of my invention; and Fig. 2 a section through the nozzle.

In the application of my invention a portion of the front end of the boiler is indicated by the letter a.

The fluid vessel j is arranged separately from the feed-pipe is, to which it is connected by means of a branch pipe Z and the main connecting-pipe m. Said pipe m extends from the feed-pipe forward and upward to the sightfeed or gage-glass n, which is arranged adja cent to the vessel 1' and is connected thereto by a pipe q, pipes m and m connecting the sight-feed or gage-glass with the feed-pipe is, pipe m being connected to the said feed-pipe at a point above the feed-valve 8. At the junction of the two pipes Z and m is a threeway cock 0. There is also a cock p on the pipe 9. Above the gage-glass on the pipe m is preferably arranged another regulatingcock r. A back-pressure valve 2, is provided in the pipe m for trapping the water therein.

The top of the fluid vessel is provided with any suitable feeding-orifice u and an air-cock a and drain-cock u", to be regulated as desired. The air-cock, in conjunction with the cock 1) on the pipe, connecting the fluid vessel with the sight-feed tube will regulate the quantity of fluid drawn in with each stroke of the feed-pump. When feeding continuously, the cock 0 on the branch below the fluid vessel is closed against any downward feed of fluid through the pipe Z, while the cocks p and 1 and the air-cock are opened. The deliverynozzl'e o, through which the fluid passes in the gage-glass, is preferably arranged so as to project upwardly through the center of the gageglass, so that the water coming from the main feed-pipe passes all round it, as shown by the arrows, at each stroke of the feed-pump or as the water is injected into the boiler, and thusv a certain quantity of fluid is sucked or drawn from the nozzle and thoroughly mixed with the feed-water.

The apparatus may be worked either with or without steam from the boiler.

When used for feeding occasional quantities of fluid to the boiler, the fluid-regulating cook 10, between the fluid vessel and sightfeed, is closed. Also the cock 0, a lower valve u on the feed-pipe, and the feed-valve s are closed. The vessel is then filled or partly filled with fluid and the feeding-orifice tightly closed. The cock 0 on the branch pipe Z below the vessel is then opened to allow the fluid to descend and to pass to the feed-pipe and into the boiler with the feed-water when the feedvalve 8 is opened. This may be done daily or as required.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a device for feeding anti-incrustation fluid to boilers,in combination with the boilerfeed pipe, a receptacle, a sight-feed communicating therewith, pipes connecting said sightfeed with the feed-pipe and a pipe Z connecting said receptacle with the said connectingpipes, said pipe Z being independent of the sight-feed.

2. In a device of the class described, in combination with the boiler-feed pipe, a receptacle, a sight-feed, rneans of communication between said sight-feed and the receptacle, pipes connecting the sight-feed with the boiler-feed pipe, and means for connecting the receptacle with the boiler-feed pipe, said means being independent of the sight-feed, substantially as described.

3.- In a device of the class described, in combination with the boiler-feed pipe, a receptacle, a sight-feed, a nozzle therein, a pipe connecting said nozzle with the receptacle and pipes connecting the sight-feed with the feedpipe.

4:. In a device of the class described in combination, the feed-pipe, a receptacle, a sightfeed, a nozzle therein, a pipe connecting said ALEXANDER MoWILLIA MS.

Witnesses:

H. SWINDELL, A. F. RICHARDSON.

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