US731979A - Feed-water heater and purifier. - Google Patents

Description

PATENTED JUNE 23, 1903.` C. E. TUDOR 6a 0. B. KAISER. FEED WATER HEATER ANDV PURIEIER.

APPLICATION FILED JUNE `26, 1902.

H0 MODEL.

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UNITED STATES Patented fune 23, 1903.

PATENT OFFICE.

CHARLES E. TUDOR AND OLIVER B. KAISER, OF CINCINNATI, OHIO, ASSIGNORS TO ,THE TUDOR BOITIER MANUFACTURING COMPANY, OF CINCINNATI, OHIO, A CORPORATION.

FEED-WATER HEATER AND PURIFIER.

SPECIFICATION forming part of Letters Patent N o. 731,979, dated June 23, 1903. Application-filed .Tune 26,1902. Serial No. 113,251.. (No model.)

Y T0 a/ZZ whom t tay concern.-

Beit known that we, CHARLES E. TUDOR and OLIVER B. KAISER, citizens of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Feed-Water Heaters and Purifiers, of which the following is a specification.

The object of our invention is to provide a feed-water heater and pu rifier of simple and effective construction, whereby the heater will more thoroughly remove'thc impurities from the feed-water and at the same time can be easily kept in an efficient condition, providing means for quickly heating the feedwater, readily separating out the impurities, and providing means for readily removing the impurities and keeping the heater in proper condition.

The features of our invention are more fully set forth in the description of the accompanying drawings, forming a partof this specification, in which- A Figure 1 is a central vertical section of our improved heater and purifier. Fig. 2 isasection on lino :c Fig. 1. Fig. 3 is a section Fig. et is a sectional view of a pan.

The heater is formed of a single shell which is divided into several compartments, as will be hereinafter explained.

A represents the steam-receiving chamber at the base of the heater.

B represents a central tube for conducting the steam up to the heating and condensing chamber.

C represents the steam-inlet pipe; D D, the baffle-plates, which are preferably formed of corrugated iron, and two or more baffle-plates, one in front of the other, are employed, so as to more readily and eificientlyseparate out the oil from the steam and conduct it off.

a represents partition-plates at the top of the steam-receiving chamber and which form the bottom of a settling-chamber E.

b represents an annular pipe concentric with the pipe B, but forming an annulus between said pipe for the passage of water into the settling-chamber.

F represents an annular filter-chamber. It is separated from the settling-chamber by a perforated plate or screen c. c represents similar screens or plates for allowing the purified water to escape into the pure-water chamber G,which is vertically above the settling-chamber.

el represents a partition-plate covering the top of the pure-water chamber.

Upon pipe Bis mounted a series of overflow heating pans or shelves. These parts are constructed as follows: s represents brackets or legs mounted upon the anged top of pipe B. H represents a deflector plate which forms the base of the heating-pan system. This plate is preferably crowning, so as to shed off the water which falls on the top side and forces the steam outward, causing it to passout of the pipe and along the underside of said plate and forces itinto immediate contact with the water. 1 2 3 4 represent overfiow shelves or pans, which are convex or dishshaped and preferably constructed' with a stern 5 and a socket 6, so that each pan will nestinto thenextsucceedingone. Theseries of'pans are clamped together by a central bolt 7. 8 represents a manhole opposite the shelves for affording ready means of access, so that they may be readily taken ont and cleaned .of the impurities deposited thereon. These pans and theirsurrounding spacein the top portion of the heater form the heating and condensing chamber, the construction andarrangement being such that the steam is rap# idly condensed by the water overflowing the shelves or pans and rapidly and efficiently taking up the heat, the water passing down through the annular pipe b into the settlingchamber, from whence it passes by upper filtration through the filtering-chamberinto the pure-water chamber, from which it is drawn off through an outlet-pipe 9. Water is maintained at any desired level by means of a float in cage 10. 11 represents the stem of the float-valve connecting it to a cut-od valve in the globe l2. construction.

In order to remove impurities, a common blow-off pipe I is provided, having branch These parts are of ordinary pipes tapping the several chambers. K represents an oil-outlet pipe tapping the blowoif I, and it is preferably provided with the ordinary trap-valve, so that the oil is allowed to iow olf as fast as it is separated from the steam.

M represents a blow-off pipe tapping the settling-chamber E. N represents a similar pipe tapping the pu re-water chamber. Q is a similar pipe tapping the heater above the pure-water chamber.

R represents an overflowpipe. This is just at the top of the normal water-level. Of course the cage 10 and float-valve could be lowered and a level maintained as low as the top of the pure-water chamber.

In the operation of feed-water heaters and purifiers where the feed-water contains lime, magnesia, or similar impurities it is essential to have a settling-chamber where the heavier deposits may be settled without necessitating their being passed through a filtering-chamber; otherwise the interstices of the filtering medium are rapidly filled up with the liberated impurities, choking the operation of the heater and frequently requiring a stoppage of the same to change the filtering medium; but by employing a settling-chamber and a blow-off pipe connected thereto the impurities may be quickly discharged through the blow-0E pipe without stopping the operation of the heater to any appreciable extent. Like- Wise above the filtering medium lighter impurities are apt to accumulate, and they in like manner ma)T be readily blown off without stopping the operation of the heater.

With the construction of heater herein shown and described the following advantages are obtained:

First. The oil, is readily separated out of the steam and trapped 0E.

Second. The escape steam is all forced through theincoming current of water and thereby rapidly condensed in the shelf or pan chamber. nesia or similar mineral impurities are separated out at the point of contact and on the surfaces of the pans and willv be caught and held in the pans, and what is not there removed is deposited at the base of the settling-l chamber and readily blown o.

Third. By employing a large annular filtering-chamber through which the water passes upwardly into the clear-water chamber but Vlittle of the impurities are carried into the filtering medium.

Fourth. A large pure-Water chamberis provided, so that all danger of taking off impurities with clear water is avoided.

The great 4desideratum in a feed water A large amount of lime and mag-l heater is to condense just as much steam as possible, the more steam condensed the hotter will be the feed-Water. By compelling all of the steam to be passed through the streams of incoming water the condensation of the major portion of the steam is obtained.

It will be observed that the system of pans or shelves is simple in construction, but is sustained on a central stand-pipe in such a manner that they may be readily removed therefrom, the pans having one common central support instead of being individually connected to the shell of the heater, which is the common practice invthis art. Therefore they are more readily constructed and more easily cleaned and replaced.

Having described our invention, we claim-- 1. In a feed-water heater and purifier employing a steam-receiving chamber at the base and a heating-chamber near the top thereof, the combination therewith of a steam-pipe connecting said two chambers, a series of overflow-pans each provided with hollow stems and sockets at their central portion adapted to nest the said series together, means for supporting the same above and athwart the discharge end of the steam-pipe, whereby water supplied to the pans will overflow around the steam-pipe and condense the steam escaping from said pipe, substantially as described.

2. In -a feed-water heater and purifier, a heating chamber, an upwardly extending steam-inlet pipe terminating therein, a vertical tier of pans seated directly on the discharge end of said pipe, each panv having a central socket and stem extending respectively above and below, whereby the pans are detachably superimposed, a water-inlet and a steam-outlet directly above said pans and in .line with said steam-pipe, substantially as described.

3. In a feed-water heater and purifier, a heating chamber, an upwardlyextending steam-inlet pipe terminating therein, a vertical tier of pans seated directly on the discharge end of said pipe, each pan having a central integral hollow socket and stem eX- tending respectively above and below the pan, a rodextending through all of said hollow stems and sockets, a bolt engaging said rod, a water-inlet over the. pans, and a steam-outlet over the pans in line with the steam-pipe, substantially as described.

In testimony whereof we have hereunto set our hands.

CHARLES E. TUDOR. OLIVER B. KAISER. Witnesses:

EDwD. T. ALEXANDER, IDA J. LUCAS.

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