US498534A - Water heater and condenser - Google Patents

Description

I (No om.)

J B GRAWLEY I WATEB'HEATER AND CONDENSER. N6. 198;534.

PatentedMay .30, 1893.

' UNITED STATES PATENT OFFICE-.

JAMES E. CRAWVLEY, OF MILWVACKEE, WISCONSIN.

WATER HEATER AND CONDENSER.

SPECIFICATION forming partof Letters Patent No. 498,534, dated May 30, 1893 f I I Application filed March 13,1893. Serial Ito-466,645. (No model.)

To all whom it may 007L007"- Be it known that 1, JAMES E. CRAWLEY, a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Water Heaters and Condensers; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention has for its object to provide a simple, economical water heater and con denser having means for the filtration of the water prior to the discharge of the same to a boiler-pump or injector; and saidinvention consists in certain peculiarities of construction and combination of parts hereinafter described with reference to the accompanying drawings and subsequently claimed.

In the drawings: Figure 1 represents a vertical section of a water vheater and condenser constructed according to my invention, the section being taken on line 11 of the succeeding figure, and Fig. 2, a horizontal section taken on line 22 .of the preceding figure.

Referring by letter to the drawings, A represents a horizontal shell having one end thereof joined to a vertical cylinder B and a chamber C within the cylinder parallel thereto, the relative proportions of said cylinder and inclosed'chamber being such that a certain area of space is left between the same at all points. The shell A is provided with a water inlet 1) preferably on the line'of its greatest elevation and adjacent to the end that is farthest from the cylinder B, this end being closed except to the extent of a steam-entrance 0 designed for connection with the exhaust of a steamengine, this steam-entrance being somewhat above the center of the shell.

That end of the shell A extended through the cylinder B and connected with the chamber C has a head-piece d rising from the bottom of said shell to a distance above the center of the same on or about level with the lower portion of the steam-entrance above specified, and said shell is provided with a drain-outlet e, outside of said cylinder.

The upper end of the cylinder 13 is provided with a man-hole f having asteam-tight closure D, and the lower end of said cylinder has an outlet g for the purpose hereinafter set forth.

The chamber. C is open at the top and pro vided at the bottom with a valve-controlled draw-off pipe it "that extends .through the adjacent lower end of the inclosing cylinder. Contained within the chamber C is another. vertical cylinder E that has a relief-pipe i extended from its upper head through. the corresponding head of the main cylinder B, and

a lateral branch j extends from the inner cylinder through the chamber C and said main cylinder, this branch being designed for connection with a boiler-pump or 'injector. .I also show an ordinary water-gage F having its laterals 7f, joined to the inner cylinder adjacent to the branch jthat extends therefrom.

Communicating with the c'ylinderE through its lower head is a perforated vertical tube G, and intermediate of the same and a similar tube H of larger diameter, fast to saidcylinder, I arrange a body I of suitablev filtering material, the latter and perforated tubes constituting a strainer. e

In practice enough water is run into the shell A to overflow the head-piece'datthe inner end of the same and rise in the chamber C as highas the lateral branchj from the in' ner cylinder E, and this dept-h ordinarily maintained. The exhaust-steam from an engine entering the shell A at c operates to heat the Water therein, and so much of this steam asis not condensed within said shell passes into thevchamberC to not only exert pressure on the water contained in this chamber, but to also experience a certain amount of con densation, the surplus steam escaping through the open top of chamber C and passing down between the same and the main cylinder .B to discharge through the outlet g and serving to further heat the adjacent body of water. The increase of water in the shell A incidental to condensation of exhauststeam overflows into the chamber C, and there is a percolation of water through the strainer above specified, this percolation being aided by the steam-pressure in said chamber. The water passed through the strainer rises in the cylinderE to be drawn off from the latter through the branch j, by a boiler-pump or injector.

From the foregoing it will be understood that there is a material condensation of exhaust-steam, and at the same time there is a heating of feed-water to a high temperature,

wherebya separation therefrom of impurities injurious to a boiler is induced, these impurities sinking of their own gravity to the bottom of the chamber 0 While oil and scum rise to the surface of the water contained in said chamber. In addition to a separation of impurities from the Water incidental to a high temperature said water is thoroughly filtered and enters the inner cylinder in the purest possible condition.

The pipe i leading from the upper head of the inner cylinder E relieves the water in said cylinder from steam-pressure, and the chamber 0 is provided with an outlet 0% for the escape of surplus water.

If .at any time the water of condensation be not sufficient to supply the boiler-pump or injector, other water is admitted to the shell A, through the inlet 1), from any suitable source, and this supply of water coming into contact with the inflow of steam to said shell is heated to a certain temperature coincident with a material condensation of the steam.

It is possible to omit the strainer, and in such cases the dependence of the cylinder E I claim as new, and desire to secure by Let-- ters Patent, is

l. The combination of a horizontal shell having a steam-entrance, water-inlet and a partially open end; a vertical cylinder inclosing said end of the shell and provided with a suitably disposed outlet, a chamber of less dimensions than the cylinder, but inclosed thereby parallel thereto and open at the upper end; another cylinder arranged within the chamber and communicating with the same, and a branch leading from the latter cylinder through the chamber and former cylinder, substantially as set forth.

2. The combination of a horizontal shell having a steam-entrance, water-inlet and partially open end; a vertical cylinder inclosing said end of the shell and provided with a suitably disposed outlet, a chamber of less dimensions than the cylinder,- but inclosed thereby parallel thereto and open at the upper end; another cylinder arranged within the chamber, a strainer depending from the latter cylinder in communication with the same,

and a branch leading from the latter cylinder through a chamber and former cylinder, substantially as set forth.

3. The combination of a horizontal shell having a steam-entrance, Water-inlet and partially open end; a vertical cylinder inclosing said end of the shell and provided with a suitably disposed outlet, a chamber of less dimensions than the cylinder but inclosed thereby parallel thereto and open at the upper end; another cylinder arranged within the chamber to communicate with the same, a relief-pipe extended from the latter cylinder to a point outside the former cylinder, and a branch leading from the inner cylinder through the chamber and outer cylinder, substan tially as set forth.

4:. The combination of a horizontal shell having a steam-entrance, water-inlet and partially open end; a vertical cylinder inclosing said end of the shell and provided with a suitably disposed outlet, a chamber of less dimensions than the cylinder, but inclosed thereby parallel thereto and open at the upper end; another cylinder arranged within the chamber to communicate with the same, a branch leading from the latter cylinder through the shell and former cylinder, and a water-gageconnected to the inner cylinder, substantially as set forth.

, 5. The combination of a horizontal shell having a steam-entrance, water-inlet and partially open end; a vertical cylinder inclosing said end of the shell and provided with a suitably disposed normally closed man-hole as well as a permanently open outlet, a chamber of less dimensions than the cylinderbut inclosed thereby parallel thereto and open'at its upper end, a valve-controlled draw-off pipe connected to the chamber, another cylinder arranged within the chamber, a strainer-depending from the latter cylinder in communication with the same, a relief pipe extended from the latter cylinder to a point outside the former cylinder, a branch leading from the inner cylinder through the shelland outer cylinder, and a water-gage that connects With said inner cylinder, substantially asset forth. In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of two witnesses.

JAMES E. ORAWLEY. Witnesses:

N. E. OLIPHANT, JOHN E. WILES.

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