US1511876A

US1511876A - Degasifying apparatus

Info

Publication number: US1511876A
Application number: US535106A
Authority: US
Inventors: Raymond N Ehrhart
Original assignee: Elliott Co
Current assignee: Elliott Co
Priority date: 1922-02-08
Filing date: 1922-02-08
Publication date: 1924-10-14
Anticipated expiration: 1941-10-14

Description

Patented Uni. ld, ldddo .RAYMOND N. mite r, or menwoo'n, PENNSYLVANIA, conrnNr, or rrrrsnunen, nnNNsrnvaNra, a conronja'rro or NnNNsrnvnNrn.

IGNOR T ELMO'WJP DEGASIJFYING APPARATUS.

Application filed. February a, 1922. Serial No. teams. 1

To all whom it may concern:

Be it known that I, RAYMOND N. Em:- HART, a citizen of the United States, residin at Ed Wood, Allegheny County, Pennsy vania, ave invented a new and useful Improvement in Degasifying Apparatus, of which the following is a full, clear, and exact description, reference being had to the .acoompan ing drawings, forming part of W this speci cation, in which c Figure 1 is a vertical sectional view, partly in elevation and largely diagrammatic, illustrating an embodiment of the present invention, and

1% I Figure 2 is a sectional detail view on an enlarged scale illustrating one of the spray devices.

At the present time, it is quite customary to utilize suitable apparatus for removing W to as large an extent as ossible entrained air and gams from water fore passing the water to boilers or the like. Such apparatus,

. commonly referred to as degasityiug apparatus, in its commercial form embodies three W chambers, viz: the heatin chamber in which the liquid to be degasifie is heated, the deaerating or evaporating chamber in which the air and other gases are. released or separated, and the condensing chamber for con- W densing the condensible vapors and absorbing the heat of the evaporation from the deaerating chamber. Commercially, it is customary to build each of these chambers as" a separate unit, this being especially true 35 of the condenser. This necessitates a great deal of piping for connecting {the various chambers and also a relatively complicated system of supports for allof the chambers.

y the present invention the objections in to this respect to existing apparatus are en- ,tirely obviated and there is provided an aparatus in which the entire device is in ctect an integral self-contained and self-supporting unit requiring a minimum amount of 1 t piping.

Also, wlth existing apparatus, the compli cated system of piping re uires a complicated control for the flow 0 liquid from one of the chambers to another chamber, as in- W quired. By the present invention there is provided a purpose. ert'ain of the constructional imtures ot the resent invention are claimed in the co-pen ing ap liwtion of Hugo Berquiet, Serial No. 5t ,Btd, filed March 29,

densing chamber supporting both spirit of the invention,

atly simplified control for this" 1922, and in Elliott application Serial No. 437,240, filed January 14, 1921.

Referrin more particularly to the drawings, there is illustrated a degasityiug apparatus formed as an integral unit, self-contained and self-supporting. This apparatus preferably comprises a heating chamber 2 having an inlet 3 for the heating medium.

In accordance with the usual practice this heating medium may be steam at any desired temperature. Below the heating chamber is an eva rating or deaerating chamber 4 which 1s entirely vsurroundedby a passage 5 permitting the gases and vapors released in this chamber to pass therefrom into a condensing chamber 6. In the embodiment of the invention illustrated, all of the chambers are arranged coaxially, with the conthe deaerating and the heating chambers. lit will be obvious, however, to those skilled in the art that the arranement of the chambers may be varied wit out departing from the "nd that other e anges may be made in't e construction and the operation of the various parts of the apparatus within the scope of my broader claims. I

The liquid to be degasified is supplied to the apparatus through an inlet connection 7 cooperating with the condensing chamber. The outlet into the condensing chamber 1s controlled by a combined valve and spray device 8. This spray device may be constructed in any desired manner, for example, as illustrated in my co-pending application Serial No. 477,972, filed June 16, 1921, with the fluid conveying passages 9 so constructed as to present a gradually decreasing cross-sectional area to the dew of the liquid as the device moves to cutting-01d position. Below the spray device 8 there may be provided a valve 10 adapted'to cooperatewith the inlet 7 to completely cut ed the sup ly of liquid to the condenslng chamber. y reason at All this construction, I

it will be apparent that irrespective of the volume of flow through the spray device the atomization edected thereby will be substantially 11: a; in. as the am oi the dischar outlet variw in accordance with the li ui being dimharged.

cm the condensing chamber A the liqnid may be conducted by a 8pump 11' and p pe lit to the liquid inlet 1 coopera q. W1.

subjected to the heating medium supplied.

thereto and thereby raised to the desired temperature. From the 'heating chamber, the liquid is adapted to be discharged into the deaeratingcham'ber 4 through a thlrd spray device of the construction hereinbefore set forth. From the deaeratmg chamber 4 the liquid, in degasified state, may be lead through an outlet connectlon 1.4 to the boiler feed pumps for supplying the boilers or economizers with degasified water, or

to any other apparatus in-connection with which degasified water is desirable.

Located in the deaer'ating chamber 4 is a float 15 having a piston 16 which is operatively connected with each of the combined spray and valve devices 8. By reason of this construction, the single float 15 simultaneously controls all of these devices, the control being in accordance with the demands upon the apparatus such as tend to produce changes in the liquid level within the chamber 4. By reason of this construction there is provided an efficient means for controlling the intercommnnica.ting connections between the various chambers.

There is preferably maintained within the chamber 4, the passage 5 and the chamber 6 a vacuum which is higher than that which would normally cause the water lcaving the heater and entering the 'deaerating chamber to boil. In other words, there is maintained a differende -'in pressure and temperature between the heating chamber.

' and the deaerating and condensing chamber;

bers. This results in a violent ebullition of the water entering the deaerating chamber from the heating chamber which is very advantageous as it effectively releases from the water all of theentrained air. and gases.

The spraying device cooperates with this sudden drop 1n pressure and mechanically breaks up or atomizes the liquid thereby increasingthe ebullition and the release of the air and other gases. 7

The condensible content of the released vapors passes into the condensing chamber and is condensed by the entering liquid. The heat of these vapors is thus conserved in effecting a. preliminary heating of the water before it-passes to the heating cham- Vapors may be removed from by means of a. suitable as a steam ejector 17.

the apparatus jecting device such For facilitating the operation of each of the spraying devices 8, th

The non-condensible content of these with. In this manner easy and accurate control is provided.

While the present invention adapts itself to the use of a plurality of floats for controlling the various spraying devices, as suggested, for example, in Elliott Patent No. 1,321,999 of November 18, 191.9, such a construction being within the spirit of my invention, the operation is considerably simplified by the provision of a single float in the manner illustrated.

The advantages of the present invention arise from the provision of a compact comparatively simple form of degasifying apparatus in the form of an integral unit which is self-contained and self-supporting, and in which a simplified liquid control of an efficient nature is provided.

I claim:

1. Degasifying apparatus, comprising a plurality of serially connected chambers having liquid spray means dischargin the contents of one chamber into the next c amber of the series, said spray means having an automatically variable flow capacity effecting substantially uniform atomization of the liquid issuing therefrom irrespective of the quantity of liquid flowing therethrough, there being means insuring removal of non-condensible gases from the apparatus, and means for heating the liquid in one of said chambers, substantially as dcscribed.

2. Degasifying apparatus, comprising a plurality of serially connected chambers having liquid spray means discharging the contents of one chamber into the next chamber of the series, said spray means effecting substantially uniform atomization of the liquid issuing therefrom irrespective of the quantity. of liquid flowing therethrough, and means for automatically actuating all of said spray means in accordance with the demands on said apparatus, substantially as described.

3. Degasifying apparatus. comprising a plurality of serially connected chambers havmg liquid spray means discharging the contents of one chamber into the next chamber of the series, said spray means effecting substantially uniform atomization of the liquid issuing therefrom irrespective of the quantity of liquid flowing therethrough, and a common means for automatically actuatin all of said spray means in accordance witii the demands on said apparatus, substantially as described.

4. Degasifyin apparatus, comprising a plurality of seria 1y connected chambers havmg liquid spray means discharging the contents of one chamber into the next chamber of the series, said spray means efi'ectin substantially uniform atomization of the liquid issuing therefrom irrespective of the quantity of liquid flowing therethrough, and a common actuating means for "all of said spray means, substantially as described.

5. Degasifying apparatus, comprising a plurality of serially connected chambers hav: ing liquid spray means discharging the contents of one chamber into the next chamber of the'scries, said spray means efl'ecting substantially' uniform atomization of the liquid issuing therefrom irrespective of the quantity of liquid flowing therethrough, and a common float controlled means for actuating all of said spray means, substantially as described.

6. Degasifying apparatus, comprising a plurality of serially connected chambers having intercommunicating liquid flow connections, and means for simultaneously controlling all of said connections, substantially as described.

7. Degasifying apparatus, comprising a plurality of serially connected chambers having intercommunicating liquid flow connections, and means for simultaneously and uniformly controlling all of said connections, substantially as described.

8. Dega'sifying apparatus, comprising a plurality of coaxially disposed serially connected chambers having intercommunicating liquid flow connections, and means for simultaneously controlling the flow through all of said connections, substantially as described.

9. Degasifying apparatus, comprising a plurality of chambers having intercommunieating liquid flow connections, and float operated means in one of said chambers for simultaneously controlling all of said connections substantially as described.

10. Degasifying apparatus, comprising a plurality of chambers having intercommunieating liquid flow connections, and substantially balanced means for controlling the flow through all of said connections, substantially as described.

11. Degasifying apparatus, comprising a heating chamber, a deaerating chamber and a condensing chamber, said deaerating chamber having a vapor passage formed therearound and communicating with the condensing chamber, substantially as described.

12. Degasitying apparatus, comprising a heating chamber, a deaerating chamber and a condensing chamber assembled in coaxial relationship as an integral unit, and connections for supplying the liquid to be treat ed to all of said chambers, substantially as described.

13. Degasitying apparatus, comprising a heatin chamber, a deaerating chamber and a con ensing chamber, one of said chambers forming the supporting base for the other two, and connections for supplying the liquid to be treated to all of said chambers, substantially as described.

14. Degasifying. apparatus, comprising a heating chamber, a deaerating chamber and a condensing chamber, said condensing chamber forming the support for at least one of the other chambers, and connections for passing the liquid to be treated serially through scribed.

1-5. Degasifying apparatus, comprising a heating chamber, a deaerating chamber and a condensing chamber in coaxial relationship, said deaerating chamber forming a support for at least one of the other chambers, andconnections for passing the liquid to be treated serially through said chambers, substantially as described.

said chambers, substantially as deld Degasifyin apparatus, comprising an I automatically ad us tab1e li uid passage for uniformly atomizing the llquid traversing said apparatus, substantially as described.

17. -Degasifying apparatus adapted to impart a whirling motion to the liquid passing therethrough for spraying and atomizing the same, and automatically adjustable means for controlling the spraying of the liquid traversing said apparatus, substantially as described.

'18. Degasiiying apparatus comprising an adjustable liquid spraying and atomizing nozzle, and float operated means for controlling said liquid sprayin nozzle to maintain uniform atomization 0% the liquid within the capacity range of said nozzle, substantiqgy .as 1 gescribed. Y

19. egasi ing apparatus, comprisin a directly connected heating chamber, a ideaerating chamber, and a condensi'n ber assembled in coaxial relationship as an integral unit, and adapted to serially receive the liquid to be degasified to perform diflerent operations thereon, substantially as described. p

20. Degasifying apparatus, comprising a cham-v condensin chamber, a heating chamber and narnonn' n. rm c