US256479A - William d - Google Patents

Description

(No Model.)

W. D. HOOKER.

CONDENSBR.

M256 9. PatentedApr.18,-1882.

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UNITED STATES PATENTv OFFICE.

` WILLIAM I). 'HOOKER OF OAKLAND, CALIFORNIA.

CoNDENsERf.

SPECIFICATION forming part of Letters Patent No. 256,479, dated April 18,1882.

.Application filed May 23, 1881. (No model.) v

To all whom it may concern Be itknown that I, WILLIAM De HOOKER, of Oakland, Alameda. county, State of California, have 'invented a certain fnew and useful Improvement in Condensers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings.

My invention relates to tubular cbndensers and it consists, rst, in means, accessible ou the outside of. the condenser, whereby the packingr between the joint of the movable lube-sheet Y and the inclosing shell or 'cylinder can be ex- VIo panded and the joint kept steam Vand water tight. L

The invention consists, second, in the combination, with a horizontal tubular surface'con Figure lis a longitudinal vertical section ot my improvedcondenser, showing the combination with the pumping-engine. Fig. 2 is a cross-section through thelinewx, Fig. l. Fig. 3 is an end view on the left-hand side of Fig. 1. Fig. 4 is a cross-section taken through the right-hand side ot' Fig. l through the chamber X. Fig. isadetail section of the movable tubesheet.

Inside of the inner` shell or wall of. the condenser I arrange a series of small tubes, b, so as to connect twol flue-sheets. C D, one near each end of the vessel or condenser. The case ofthe condenser-I construct of an outer shell, E, and an inner shell, F, so as to leave a narrow space between the two shells. The steam! pipe G, through which the exhaust-steam is introduced into the condenser, pours through both shells, as shown, and the hot-well H, in the bottom of the condenser, is connected in a like manner. The tube-sheet C is stationary and immovable, and when the shell is made double, as above described, it extends to the outer shell, while the inner shell, F, abuts against it, leaving a chamber, X, between it and the head of the condenser'. Openings jj, Fig. 4, are made in the rim of the tube-sheet,

to connect the chamber X with the jacket or surrounding water-space. vThe suction V of the pump .connects with this water space or jacket, so that a continuous stream of water is drawn'through the tubes, and thence through the water space or jacket tothe suction-pipe of the pump, thus surrounding the condenser with a constantly-moving stream of cold water. This arrangement is admirably adapted for use in connection with a steam-pump, as the suction ot' the pump keeps the condenser supplied with and submerged in cold water.

The tubes b b, which pass through the condenser, have one end secured in the stationary or xed 'tube-sheet, C, while their opposite ends are secured in a movable or sliding tube sheet or head, D, in the oppositel end .of the condenser. This` movable tubesheet can be made in any convenient form, so that its outer rim has a bearing against the inside of the caseA or shell A. In thepresent instance I haveY represented it with a projecting ange, o, which gives its rim awide bearingagainst theinterior of the shell yor case. Between the ange o 'and shell I make an opening or space, p, in which I place any suitable packing material.

1V is a gland or follower, which moves in the space p, so as' to compress the packing and tighten it against the 'lange or rim oof the t'ubesheet, and thus form a stufhng-box for the tube-sheet to move in. This gland or follower is moved by means of screws "r. orother compression device, which extends through the outer head of the vessel or shell, so that the packing can be compressed from the outside ofthe vessel without removing any ot'its parts.

By this arrangement all of the tubes are se' IOO chambers ot' the condenser, if there is any leakage, it will be shown by water flowing through the cock. If there should be a leak, I first tighten the packing in the stuffing-box around the movable head; but if water should still continue to flow from the cock, I then know that the leak is in the tubes.

Another improvement which I have added to the condenser is a spray-pipe, s, which leads from a cold-water supply, and is introduced into the condenser at the point where the exhaust-steam entersit. This pipe is connected with a suitable pump, and terminates inside ofthe condenser in a. sprinkler or rose, over which I arrange a deector, t. A cock, u, on this pipe serves to regulate the amount ot' water it supplies to the condenser. The object ot' this pipe is to supply the wastage which occurs from leakage, evaporation, blowing ot, Ste. The cock is to be set to ad mit the desired quantity of water. The steam in entering the condenser strikes the dedectors t, and is spread so as to meet the sprayof cold water, thus combining the spray and surface principles in one condenser. The cold water is heated by its contact with the steam and falls into the hot-well, where it iningles with the water of condensation, and thence is pumped along with the water of condensation into the boiler.

Y is the air-pump, through which the airin the condenser is exhausted, and by which the water of condensation in the hot-well is forced into the boiler. w is the pipe which leads from the pump to the boiler. This pipe I connect bya branch pipe, i?,with the water-passage in the condenser which leads to the pump, and in the length of this branch pipe I place a cock, y, and another, z, on the pipe w, between the pipe and boiler, so that I can shut ot't' the passagein either of the pipes. When the cock r/is closed and the cock z is open the air-pump -will force the hot water into the boiler; but in case it should not be desired to pump the hot water into the boiler, I can close the cock z and open the cock y, so that when the vacuum in the pump exceeds the vacuum in the condenser the pump will draw the hot water up the pipe x and cause it to mingle with the supply which passes through thepump; and even when the vacuum in the pump is less than that in the condenser, the pump c will supply the additional power required to send the hot water into the pumpsupply.

The arrangement of stationary and movable tube-sheets herein described forconnecting the tubes in the condenser can be used in a refrigerator or other vessel in which the tubes require to be subjected to varying degrees ot temperature. l

By my new arrangement of the fines the surrounding water-space, the chambers at the ends of the tube-sheets, the openings] through the stationary tube-sheet, and the suction-pump, I not only maintain a continuous ow ot' cold water through the apparatus, but-I cause the water to pass through the lines and then return th rough the water-space between the jacket and inner shell, which incloses the tubes, to the suction-pump, which is arranged at the same end of the apparatus into which the cold Water is introduced.

The arrangement of the air-pump pipe and its branch and cocks in connection with the hotwell is a. valuable improvement in condensers of the kind described. for the reasons given.'

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. The combination, in a condenser, of a series ot' tubes supported at 011e or both ends in a tube-sheet movable in a smiling-box inside of the case or shell, the adjusting-screws connected with the gland or follower and extend ed through thc outer head of the condenser, whereby the packing in the stuffing-box may be compressed from the outside of the condenser without removing any of its parts,substan tially as described.

2. The combination, in a horizontal tube surface-condenser, of 'the steam and cold spray in lets leading through the outlet water-space into the tube-space, the hot-well located below the said inlets, the air-pump, the pipe leading from this pump to the boiler, the branch pipe leading to the cold-water space of the condenser, and the cocks applied to said pipes, substantially as described.

Witness my hand and seal.

WILLIAM DAVIS HOOKER.

Witnesses:

EDWARD E. OsBoRN, W. F. CLARK.

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