US694571A - Feed-water purifier. - Google Patents

Description

UNITED STATES PATENT OFFICE.

JAMES W. PEARCE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO LESTER C. KEYSER, OF PHILADELPHIA, PENNSYL- VANIA.

FEED-WATER PURIFIER.

SPECIFICATION forming part of' Letters Patent No. 694,571, dated March 4, 1902. t

Y Application-filed April 25, 1901. Serial No. 57,384. (No model.)

water to pass through them from the feed? pipe to the boiler and those nearer the bottom allowing passage in the opposite direction. This construction permits the impurities in the vwater to settle inthe different compartments, the cleaner water in the .upper portion of the compartment passinginto the next, while the muddier and dirtier portions remain in the compartment comparatively undisturbed, and the dirt is allowed to quietlyV settle out.

Describing now the best construction of my invention, Figure l is a longitudinal section through the boiler and purifier. Fig. 2 is a cross-section on line ZZ of Fig. 1, and Fig. 3 is a perspective of the pu rier apart from the boiler.

The boiler A is shown as a return tubular boiler; but my invention is applicable to any boiler havingasufticient open space to receive the purifier-box. The purifier-box D is placed Within the boiler and has connected with it the feed-pipe C. This pipe is suitably connected in any usual or convenient manner.'

The box D is provided with partitions G G,

dividingit into compartments. In the upper part of these partitions are the ports E E, which are closed by the valves F F, that open only in the direction of the movement of the water through the box into the boiler. With the first of these compartments the feed-pipe O communicates. In the lower part ot' the partitions G G are placed the ports .I J, closed by the valves H H, that open in the opposite direction from theY valves F F and allow passage in the opposite direction. From the last compartment of the box D the water flows into the boiler, and for this purpose a depression, as d, is generally provided.

Athe boiler by the manhole.

The purifier-box can be kept away from the bottoni of the boiler A by hangers K K or otherwise suitably supported and can be of any convenient shape in cross-section; but an elliptical shape has some advantages in enabling it to be more readily entered into It is preferably closed for a portion of its length at the top and is generally placed so that the top of the box is a little higher than the water-level in the boiler.

Means are provided by which the feed-pipe O can be converted into a boiler-exhaust pipe. A very convenient form is that shownin Fig. 1, where the pipe C communicates with the pipe B, the portion Lof which communicates with the source of feed-water and the portion M'exhausts into the air or sewer, the valves X and Y determining which ofl the two the pipe C shall form the continuation ol". The water enters through pipe O one of the comipartments. There it is comparatively undisturbed, and the mud settles down toward the bottom, the clearer water at the upper part `of the box passing through the port E to the next compartment. Here a further depositing out of the mud or sediment takes place,

'and again the clearer water flows out through port E'into the next compartment. The Wa- Ater after passing through the various compartments flows out from the box. It will be s een readily that it will be almost entirely cleared of mechanical and chemical impurities. The mudor sediment gathers at the bottom of the various compartments. When the boiler is to be blown out, the valve X is closed and the Valve Yis opened,and this pressure in the boiler drives the water forcibly ont. The lower valves now open,and the mud, sediment, and precipitate is driven through them out through the pipe C.

Having now described my inventionnwhat I claim, and desire to secure byLetters Patent, 1s-

l. In a feed-water purifier, situated within the boiler, the combination of aseries of compartments, water-passages at various heights connecting said compartments, a feed-waterinlet pipe opening into one of said compare ments, an outlet for the feed-Water into the boiler, and valves in said passages, the valve IOO in the upper passage opening in the direction of the flow of the water from the feed-pipe into the boiler, and the valve in the lower passage opening in the direction of the flow of the Water from the boiler to the exhaustwater pipe; substantially as described.

2. In a feed-water purifier the combination .of a box, having a portion of the top thereof ing an open space lower and outlets therefrom into the boiler; supports for said box, maintaining it so that the said outlets are near the Water-line of the boiler; partitions dividing the inclosed portion of the box into compartments; Valves near the upper part of the partitions, opening toward the open end of the box; and valves in the lower portion of said partitions, opening toward the closed end of the box; a pipe leading into the lower part of the closed end of the box and means for converting this pipe into a boiler-exhaust pipe; substantially as described.

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

JAMES NV. PEARCE. Witnesses:

GEO. W. REED, M. W. COLLET.

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