US1585640A - Surface condenser - Google Patents

Description

' P. A. BANCEL SURFACE CONDENSER Filed Jan. 8, 1926 INVENTOR Raul iI-Bmwc Patented May 25, 1926.,

Nrr a Si Es oFF cn.

PAUL A. BANCEL, OF NUTLEY, NEW JERSEY, ASSIGNOR TO INGERSOLL-RAND COM v IPANY, 03E JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SURFACE CONDENSER.

Application filed January This invention relates to condensers, but more particularly to a surface condenser in which a condensing zone, a condensate cooling zone, and an air cooling or heat transfer zone are combined n a unitary structure, and enclosed by a single casing.

The objects of the invention are to insure complete condensation of vapor and lull form penetration of vapor and uncondensable gases through the condenser, to increase the efiiciency of the means employed for evacuating the uncondensable gases from the condenser, and to obtain a maximum temperature of the condensate immediately prior to the discharge from the condenser by bringing such condensate into intimate contact with the hot uncondensable gases.

Other objects will appear hereinafter. The invention consists of the combinations of elements, and features of construc tion having the general mode of operation substantially as hereinafter described and more particularly pointed out in the appended claims and illustrated in the accompanying drawings, in which The figure shows a transverse section of a condenser constructed in accordance with the practice of the invention.

Referring to the drawing, A indicates a condenser casinghaving at its top an inlet B to which is secured a connection C for conveying steam from an engine or other similar machine to the condenser. In this instance the lower portion of the side walls D of the casing A are formed to converge towards the center of the casing to direct condensate and also to equalize the gas removing suction over the entire area of the condenser towards a central outlet E at the bottom of the casing A.

' Near the outlet E, and preferably slightly to one side thereof, is formed an outlet F for the withdrawal of uncondensable gases from the casing A. The outlet F is pref-' erably raised somewhat above the wall I) so as to act as a Weir to prevent entrance of condensate into the said outlet. A passage Gr leading from the outlet F to any suitable point of delivery. serves to convey the uncondensable gases from the casing A.

Any suitable means, as, for instance, a vacuum pump (not shown) may be associated with the passage G for withdrawing such gases from the casing.

In accordance with the practice of the erably in staggered formation.

8, 1826. Serial No. 80,008.

' into contact with the cool surface presented by the tubes L. i p

In order to cool the condensate formed in the condensing zone K, a condensate cooling zone is arranged beneath the condensing zone K. The condensate cooling zone 0 in this instance comprises a series of troughs P extending longitudinally through the casing A. The troughs P are so arranged with respect to each other thata space Q exists between adjacent troughs. The sides R of the troughs P are preferably flared so that a greater area is presented for intercepting the condensate. Within each trough P are arranged a plurality of tubes S preferably closely grouped and through which water is constantly circulating. By reason of the large cooling area presented by the tubes S, any condensate collected by the troughs P will be quickly cooled to a considerably lower temperature than the surrounding gases and vapor.

At the juncture, of the sides R of the troughs P and the bottom of said troughs are formed rows of nozzles T which serve as an outlet for the condensate from the troughs P, The nozzles T are preferably formed at an angle with respect to the bottoms of the troughs so that the condensate may be directed to strike on splash plates U, which in this instance are arranged beneath the troughs P and preferably in the same vertical plane as the spaces Q between the troughs. By this arrangement of th troughs P and the splash plates U, any steam which may pass uncondensed from the condensing zone K will, during its passages between the troughs and the splash plates, be brought into intimate contact with the cool condensate and will be condensed thereby,

in the present instance, an air cooling zone V is arranged beneath the condensate cooling zone 0 and comprises a plurality of angular strips TV arranged in rows and pref- Tn this instance the strips TV are of triangular cross sectional form and are so arranged within the casing A that a flat side of each strip faces the splash plates U. By thus staggering the strips IV, the condensate flowing from the splash plates U will be readily broken up into a spray by the top row'of strips from whence the condensate may drop to the succeeding rows, thus causing the cool liquid to contact with the comparatively hot that the heat thus transferred from the hot gases to the condensate will effect a considerable saving in fuel.

In this instance a cover or baflie X is arranged over the outlet opening F to prevent condensate from dropping from the various zones into said outlet opening. The cover X is preferably of considerably larger diameter than the outlet F and is so spaced with respect to said outlet opening that it will in no way retard the fiow of gas from the casing A.

I claim:

1. A surface condenser comprising a casing having an inlet at the top for steam and uncondensable gases, a condensing element in the form of rows of tubes, a condensate cooling element including troughs and groups of tubes, andmeans for converting the condensate into spray for cooling the uncondensable gases.

2, A surface condenser comprising a casing having an inlet at the top for steam and uncondensable gases and a discharge opening at the bottom, a condensing element in the form of rows of tubes near the top of the casing, troughs for receiving condensate from the condensing element, tubes in said troughs, said tubes conveying cooling liquid for cooling the condensate, and means for converting the condensate intospray during its passage from the troughs to the discharge opening for cooling the uncondensable gases.

3. A surface condenser comprising a casing having an inlet at the top for steam and uncondensable gases and a condensate outlet at the bottom, a condensing element in the form of rows of tubes near the top of the casing, troughs beneath the condensing element to receive condensate from said condensing element, discharge nozzles on said troughs, tubes in said troughs for cooling the condensate, and rows of angular strips arranged in staggered formation beneath the troughs whereby the condensate may be converted into spray for cooling the uncondensable gases.

4. A surface condenser comprising a casing having an inlet at the top for steam and uncondensable gases and a condensate outlet at the bottom, a condensing element in the form of rows of tubes near the top of the casing, troughs beneath the condensing element to receive condensate therefrom, discharge nozzles on said troughs, tubes in said troughs for cooling the condensate. splash plates to receive condensate from the con- (lensing element and from the discharge nozzles, and rows of angular strips arranged in staggered formation beneath the troughs whereby the condensate may be broken up into spray for cooling the uncondensable gases.

In testimony whereof I have signed this specification.

PAUL A. BANCEL.

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