US772678A - Water-purifying apparatus. - Google Patents

Description

No. -'772,678. I PATBNTED OCT. 18, 19 04.

A. SURGE, JR, .WATER PURI'FYING APPARATUS.

APPLICATION FILED APR. 26; 1901.

N0 MODEL.

il'l'l'l'mmmiii A Patented October 18, 1904. i

PATENT OFFICE.

ADOLPH SORGE, JR, or cHioAco, ILLINOIS.

-WATER- PURIFY ING APPARATUS.

SPECIFICATION forming part of Letters Patent N0..77 2,678, dated October 18, 1904.

Application filed April 26, 1901- To all whom it may concern:

Be it known that I, ADoLPH SoReE, J r., a citizen of the United States, residing in Chicago, in the county of Cook, in the State of Illinois, have invented certain new and useful Improvements in Water-Purifying Apparatus, of which the following is a specification.

This invention relates to that class of puri-, fying apparatus in which the impurities that it is desired to be rid of are brought down or collected by the chemical action of a solution of caustic soda or other suitable reagent supplied for the purpose and are afterward removed from the chemically-treated water by filtration; and it relates more particularly to improvements in feed-water purifiers in which a saturated solution of the reagent is formed in a suitable tank from which a discharge-pipe conducts it into the feed-water. In my prior application, Serial No. 85,919, filed Novem} ber 9, 1900, I have pointed out that in such apparatus a tendency exists for the formation of a deposit in the discharge-pipe which is liable in a comparatively short time to completely close or choke the pipe and stop the working of the apparatus, and I have shown and claimed in the aforesaid application both generically and specifically means for avoiding this difficulty.

The object of the present invention is to provide a further improvement in means of accomplishing the same result; and to this end it consists in the matters herein set forth, and particularly pointed out in the appended claim.

In the accompanying drawings, Figure 1 is a sectional elevation of water-purifyingapparatus provided with my improvements.

Fig. 2 is a top plan view thereof.

In said drawings, 1 designates a feed-water heater; 2 and 3, the steam inlet and exhaust pipes; 45, the water-outlet pipe leading from the heater to the boilers, (not herein illustrated,) and 5 the supply-pipe which conducts the feed-water into the heater, a valve 6, controlled by a float in the heater, being provided to regulate the admission of feed-water in accordance with the rate at which it is drawn ofi? to the boilers.

A chemical-tank 7, to be filled with caustic SerialNo. 57,618. (No modem soda or other desired reagent, is supplied with water from any suitable source, conveniently through a connection 8, leading from the supply-pipe 5. The water entering through this connection becomes impregnated with the reagent and is .then discharged back into the feed-water through a pipe 9, in which a sightfeed 10 is provided to enable the flow to be visually regulated as desired.

In practice it has been found that where caustic soda or other solid compounds are employed as reagents in an apparatus of this character a more uniform chemical reaction can be counted upon if the flow of water through the tank 7 is so regulated as to produce a saturated solution, which of course will always be of uniform strength. Such saturated solution, however, tends to produce a deposit in the pipe 9, leading from the tank, so that it frequently happens that in a comparatively short time the resulting incrustation will completely close or choke such pipe and stop theworking of the apparatus. This difficultyI overcome in the present improvement by introducing an additional solvent into the discharge-pipe 9 at the point where the latter leaves the tank, so as to thereby reduce the density of the solution suflicientlyto prevent any deposit in the pipe. As herein shown, such solvent is provided in an additional tank 11, from thelower portion of which a valve-outlet 12 leads into the pipe 9. This tank may be conveniently filled through a funnel 13, that discharges into the tank through a valve connection 14, and to enable the contents of the tank to be discharged against any desired head the upper end of the tank is shown as connected by a valve-pipe 15 with any suitable source of pressure, a floating pisv small inlet-pipe, with the same general result of reducing thedensity of thesolution, and I00 outlet-pipe under pressure independent of the pressure in the inlet-pipe to reduce the density I 5 of the solution and prevent inerustation of the outlet-pipe, substantially as described.

In testimony that I claim the foregoing as my invention I aiiix my signature, in presence of two subscribing Witnesses, this llth day of 20 April, A. D. 1901.

A. SORGE, JR.

Witnesses:

HENRY W. CARTER, S. A. JoNEs.

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