US1474358A - Condenser - Google Patents

Description

J. F. GRACE CONDENSER Nov. 20 1923.

Filed Nov. e, 1919 f @wwf/i071' ljatenled Nov. 20, 1923.

ginds JOHN F. GRACE, OF KEARNEY, NEW JERSEY, ASSIGNOB TO WORTENGTON PUMP AND MACHINERY CORPORATION, A CORPORATON 0F VIRGINIA.

CONDENSER.

Application led November 6, 1919.

To all whom I? may concern Be it known that l, JOHN F. GRACE, a citizen of the United States, residing at learney, county of Hudson, and State of New Flersey, have invented certain new and useful improvements in Condensers, fully described and represented in the following specification and the accompanying drawings, forming a part of the same..

This invention relates to jet condensers, the especial object of the invention being to provide an improved jet'condenser of low head, that is, small vertical dimensions, Operating on ejector principles, which shall be simple, cheap and convenient to manufacture. Y

A further object of the invention consists in the provision of means for maintaining a constant delivery to the condenser so that the velocity of the water through the nozzle or nozzles shall be constant.

The invention further relates to the provision of means for separating air from the condensing water previous to its delivery to the condensing nozzle or nozzles and means for the removal of the air.

For a full understanding of the invention a detailed description of a condenser embodying all the features of the invention in their preferred form will now be given in connection with the accompanying drawing forming a part of this specification, and showing in central vertical section my improved condenser with its supply pump and turbine connected thereto, and the features forming the invention then specifically pointed out in the claims.

Referring to the drawing,-

A designates a turbine supported by floor 10 and suitably connected below the floor to the condenser shell B provided at one side with cooling water inlet 11 connected by suitable connection 12 to the delivery of the cold water supply pump C, driven by suitable means not shown. The condenser shell B is divided into a cold water supply chamber 13 and a steam inlet chamber 1li by an apron 15 having horizontal partition 16. An opening 17 in the bottom of the condenser shell B below the partition 16 is closed by a plate 18 provided with suitable openings to receive a plurality of condensing nozzles 19, three of which nozzles are shown in the sectional view, which extend into and preferably below the water level in Serial No. 336,026.

the collecting` well 2O preferably formed in they foundation, as shown. Steam cones 21 pass through suit-ably arranged openings in the partition 16 and extend a short distance within the condensing nozzles 19 forming therewith suitable annular passages 22 for the condensing water. v

Condensing water delivered to the chamber 13 by the pump C passes to the annular passages 22 and thence downward, drawing with it the Asteam from chamber 14; which is condensed and compressed therein and delivered to the collecting well 20 from which the water passes by overiow weir 23, which maintains a suitable water level within the well 20, to the hot well 24.

ln order to maintain a constant velocity of the water passing through the condensing tubes 19 and for this purpose a substantially constant head of water in the chamber 13, l provide vfor supply flow velocity operated, automatic control of the supply pump driving means. ln n the construction shown I contract the inner end of the inlet 11 to form a nozzle 25 which delivers the water against a flapper 26 pivoted at 27 to the condenser shell 'B and connected by rods 2S, 29, to the lever 30 of a throttle valve 31 in the steam linlet pipe 32 of the pump driving means so that, as the velocity of flow through the nozzle 25 falls or increases the correspondin@V lowering or raising of the flapper 26 will operate the valve 31r through its connections to correspondingly increase or decrease the supply of steam to thevsupply pump driving means to maintain a constant water supply flow volocity through nozzle 25 whereby the water level in chamber 13 and the resultingvelocity now through condensing tubes 19 arennaintained constant. Preferably the rods 28, 29 are connected by a turn 'buckle so that the relative posi-k tion of the valve 31 and the lflapper 26 may' be regulated.

A further feature of my invention consists in providing means for separating air from the condensing water and for removal y so that the air separa-tes and collects in the upper portion of the chamber 13 which is connected by a passage 1 and one or more suitably Yformed pipes 2 to the space within one or more of the condensing nozzles 19 whereby the water in passing through the nozzles also removes the air :from the upper portion of the chamber 13. I preferably provide the passage 1 with a valve 3 operated by float l guided by any suitable means such as a pin 5 on its bottom sliding within a projection 6 on the condenser1 shell B to close pipe 1 in case the water rises above a proper level in chamber 13.

ln small units l may use a single condensing nozzle, but in the larger units a. plurality, for instance, siX arranged in a circle about one central tube, as suggested in the drawing, is preferable, and this is an important feature in securing a low head condenser, as permitting the use of shorter nozzles, and providing thinner films of water which expose more surface tor Contact with the steam and thereby secure a more eicient condensation.

It is to be understood that the invention is not limited to the detail construction shown and described, as many modilications may be made therein without departing from the invention as deiined by the claims.

lVhat is claimed is:

1. A vjet condenser having a top steam chamber, a water supply chamber at one side of the steam chamber, a plurality ot ejectorcondensing nozzles having their open top ends directly below the steam chamber, a water chamber surrounding the upper ends ot the ejector nozzles, and an annular apron enclosing the water chamber about the ejector nozzles whereby the water passesfrom the water supply chamber beneath the annular edge o" rthe apron to ther water chamber.

2. A jet condenser consisting of av casing having horizontal partition 16 dividing the casing into an upper steam chamber and a lower condensing water chamber, a plurality ot' ejector condensing nozzles 19 having their upper ends within the water chamber and adjacent to said partition, annular apron 15 enclosing the water chamber about the condensing nozzles, and a water supply from which water flows beneath the annular edge of the apron to the water chamber.

l, 3. A jet condenser having a top steam inlet chamber, a water supply chamber at one side or' the steam chamber, a condensing nozzle having its open end directly below trie steam chamber, a water chamber surrounding the upper end of the condensing nozzle, an annular apron enclosing the water chamber about the Vcondensing nozzle thereby causing the water to pass from the kwater supply chamber to the water chamber beneath the annular edge ot the apron and air to separate from `the water before passing to the condensing nozzle, and a connection between the upper portion or the water supply chamber and the interior or the condensing nozzle tor removal ont the air from the water supply chamber.

1. ln a jet condenser, the combination with one or more ejector condensing nozzles, of a water supply therefor, and an automatic means operated by the water supply flow velocity Vjfor controlling said supply to maintain a constant volume flow ot water to th ejector nozzle or nozzles.

5. )in a jet condenser, the combination with the condensing water chamber, oil2 means adapted to cause the separation of air from the water delivered to said chamber, and means whereby a portion of said water in its condensing movement removes the air 'from said chamber. Y

6. A jet condenser having a condensing water chamber and a steam inlet chamber, a condensing nozzle connecting with the water chamber, means adapted to c; use the separation ot air from the water delivered to the water chamber, and a connection between the upper portion ot the water chamber and the interior of said nozzle for removal of air from the water chamber. c

7. fr jet condenser 'having a condensing water chamber and a steam inlet chamber, condensing nozzle connecting with the water chamber, means adapted to cause the separation of air from the water delivered to the water chamber', a connection' between the upper portion of the water chamber and the interior of said nozzle Yfor the removal ot air from said chamber, and a float operated valve controlling said connection. v

ln testimony whereof, l have hereunto set my hand.k j.

JOHN F. GRACE.

atY

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