US76929A

US76929A - William a

Info

Publication number: US76929A
Authority: US
Publication date: 1868-04-21
Anticipated expiration: 1885-04-21

Description

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IMPROVEMENT IN GONDENSERS.

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T0 ALL WHOM IT MAY CONCERN:

Be it known that'L'WILLIAM A. LIQBTHALL, of thecity, county, and State of New York, have invented certain new and useful Improvementsin Surface-Condensers for Steam-Engines; and I do hereby declare that the following is a full and exact description 'of the same, reference being had to the accompanying drawings, and to the letters .of reference marked thereon, in which- Figure 1 isa vertical" cross-section.

Figure 2 is a horizontal cross-section.

Figure' is a vertical longitudinal section.

JIn the ordinary method of constructing surface-condensers for steam-engines, the said condensers being intended and used for condensing the exhausted steam from the engine, and creating a vacuum in the samethe steam is generally exhausted into the condenser by a single open-ing, directly upon the tubes with which the said condenser is illedf-the operation of this exbauststeam upon the tubes is found, in practice, to cut rthe material of the tubes away, which not onlyinjures the condenser, but also injuresthe bolersot the engine, by the material thus lcut away being taken away by the feed-pumps to the boilers, and by the action of the differing 'metals--copper and iron-producing a galvanic action that'is proved, in practice, tobe very destructive to the boilers, at the same time that it proves destructive to the action of the condenser, by the cutting away of the material of the tubes in the same, as before stated.

There has been an arrangement used to prevent this. action on the tubes, by inter-posing' a plate4 between the exhaust-pipe from the engine and the upper seriesiof tubes in the condenser, but thisarrangement has been found, by trial, to be of'no practical benefit, the same destructive action ensuing from its/'use as is named above- The object and purpose of my invention are to overcome and remedy this defect, and the destructive action above named, by providing, in a'surface-condenser, an open space betweenthe sections of tubes contained therein, whether the said space is made horizontally or vertically, so that the exhausted ysteam shall pass into such open space, (withoutbeing brought into contact with the mass of the tubes,) and shall ltheube distributed amongst and around and bythe tubes contained in the condenser to be condensed, to produce the required vacuum in the condenser, and from that to the engine, to `which it is connected, and, also, by providing an exhaust-pipe, attached-to the condenser by a series of nozzles, (two or more,) in which the steam from the engine is exhausted on its passage to the condenser,by,means of which the exhausted steam is so distributed through- Y out the length of the condenser that the destructive action due to a singlefexhaust-opening into the condenser is avoided. l

A, in the accompanying drawings, is the condenser-case.' B is the series of tubes, through which the cooling-water, to produce condensation, passes, and around, amongst, and by which the steam exhausted from the engine to be condensedpasses. C is the inlet for the cooling-water, through which-thecooling-water passes into the endof the ease A, and from thence passes through 'thelower section of the tubes B, and returnsthrough the upper section of the tubes, to pass outward from the condenser through the outlet D.

As this condenser is mainly intended for vessels using steam-power for propulsion at sea, or in rivers or localities where the water is impure, the supply ot' coolingwater to pass through the tubes, as above named, can be supplied in such localities and positions by any means now known or used. i

As seen by the drawings, a space is left between the lower and upper sections of the tubes into which space the exhaust-steam from the engine first passes, before being distributed amongst, around, and bythe said -tubes'to be condensed, and, by this means, the destructive action before named is entirely avoided. This same result ensues whether the vacant space is left between the series of tubes in their height, where the space is made horizontally, or if it is left between the series of tubes in their width, where the space is made vertically;

By thus placing the tubes in the surface-condenser, and by attaching thereto the eihaust-pipel from the engine, with its series of openings, as shown and described, the destructive action due to thel ordinary method of constructing andarranging surface-condensers is entirely avoided.

E is the exhaust-pipe attached tothe condenser,- with the openings F F F, through which the steam exhausted` from the eng'ne enters into the condenser, to. effect the pulpese s'et forth.

i What I- claim as my invention,and desire to secure 'by Letters Patent, iss-- Arranging the exhaust-pipe from the engine, with its series of openings, :1s shown, in relation to the vacant space between the series of tubes, as and for the purpose herein. set forth. l

WM. A. LIGHTI-IALL.

Witnesses:

FRANCIS S. Low, W. WHR.