Jan. 7, 1947. .H_ J_ KERR 2,413,717 FLUID SYSTEM Original Filed April 30, 1938 Fig‘ 1 190 FEE WATER "mi/I86 /84 STE/4M WATER 60f /92_ IN VEN TOR: — Bl/Wrd J Kerr, ‘ A TI'ORNE Patented Jan. 7, 1947 2,413,717 \- ' V‘ UNITED STATE 5 PATENT OFFICE 2,413,117,‘ FLUID SYSTEM Howard J. Kerr, Westileld, N. J., assignor to The Babcock & Wilcox Company, Jersey City, N. J ., a corporation’ of New Jersey Original application April 30, 1938, Serial No. 205,229. ~Divided and this application July 11, 1942, Serial No. 450,546 2 Claims. - 1 , ((1122-7459) _ 2 - This invention relates to improvements in steam generators, and more particularly to methods and means for the production of high qual-_ ity steam in a steam generator. The invention involves the washing of generated steam, and the utilization of feed water at high velocity to effect . I I88 and upwardly through the steam oil’take tubes I98 to a superheater or a point of use. Water is discharged tangentially outwardly of the combined separators and washers I86 through the outlets I92 and into the drum I18. From an inspection of Figs. 1 to 4, inclusive, it . will be noted that the inlet opening of each noz zle 184 is disposed in the upper part of the steam and water after the washing of the steam. space of the drum I10 and that it opens down The invention provides apparatus including a centrifugally acting steam and water separator 10 wardly toward the water space .of the drum. With this arrangement the steam ?ow entering in which the separation of steam and water is the nozzle I84 takes place, to a considerable ex acceleratedby the introduction of feed water to or accelerate the positive separation of steam _ 'tent, upwardly past an outlet I82. The latter is the whirl chamber of the separator in a substan.-' formed as a nozzle with a ?attened outlet end tially tangential direction, and in such a way as to induce a higher velocity of tangential steam 15 as clearly indicated in Fig. 3. Thus, water of less concentration separated from the steam in the flow into the whirl chamber. I . whirl chamber I86 is directed in ‘a ?at Wide Other objects of the invention will‘iappear as stream in intersecting relation to the ?ow of the following description proceeds. _ steam into 'a nozzle I84. In addition to this The invention will be described with reference to the accompanying- drawing in which a .pre 20 washing effect, the position of the feed water nozzle I82 centrally of the inlet I84 (as clearly ferred embodiment is illustrated. . indicated in Fig. 2 of the drawing) not only ~ In the drawing: » causes. an increase in velocity 'of the whirling Fig. 1 is a vertical section through a steam and ?uid within the whirl chamber I86, but it also water drum equipped with a centrifugal steam 25 acts to cause considerable mixing of the feed separator and-steam washer; water and steam in the inlet I84 before the whirl Fig. 2 is an enlarged view of the centrifugal chamber is reached. _Thus, in eifect, each com separator andsteam washer used in the drum bined steam washer and whirl chamber I86 ef shown in Fig. 1; v v I ‘fects two stages of steam washing. Fig. 3 is an elevation of the Fig. 1 centrifugal separator and steam washer taken at right-an 30 I claim: 1. In a steam generator, a steam and water gles to the elevation shown in Fig. 2; drum having a water level therein, means where Fig. 4 is a plan of the Fig. 3 centrifugal sepa by a steam and water mixture enters the drum, rator and steam washer, looking upwardly as in means forming the whirl chamber of a combined dicated by the arrow at the bottom of Fig. 3. Fig. 1 of the drawing shows the steam and 35 steam washer and steam and'water separator dis posed in the steam space of the drum, means water drum which is intended to be the steam ' forming a steam oiftake leading from the drum, o?take drum of the steam generator. It is in the whirl, chamber having a separated steam tended to occupy a position similar to that of the outlet directly connected to said o?take, means drum I2 in Fig.1 of applicant's Patent 2,289,969 which issued on July 14; 1942, upon the parent 40 forming a primary‘whirl chamber steam ‘and water inlet tangentially arranged with reference application, Serial Number 205,229, ?led April .30, 1938, of which this application is a division. . to the whirl chamber and receiving steam flow from the drum steam space, a feed water nozzle This drum is connected by steam circulators I12 directly communicating with a source of rela to a forwardly disposed drum, and it is connected to a submerged drum by the water tubes I14. 45 tively pure feed water and directing the feed ~ water to the whirl chamber through the primary Feedwater is supplied to the drum I10 through inlet, and nozzle means forming a restricted whirl the tubular member I18 which is connected with a plurality of upwardly extending tubes I80 hav chamber outlet for separated water, said nozzle ing nozzles I82 discharging into the tangential means having its outlet part directed transverse inlets I84 of the combined steam separators and 50 ly .to thedirection of steam ?ow into the pri ‘steam washers I86. These inlets are in commu nication with the steam space of the drum I10 so that steam and water mixtures enter the wash ers I86 tangentially at high velocity. The sepa rated steam is discharged axially of the washers mary inlet so as to direct the separated water from the whirl chamber into intersecting rela tion to the flow of steam. into the whirl chamber inlet. * 2. vIn a"steam generatona steam and water‘ 2,413,717 3 4 drum having a water level therein, means forming a steam o?take for said drum, means whereby directed tangentially into the whirl chamber along" with the stem, the steam entering the steam and water mixtures enter the drum, means - whirl chamber mixing with the feed water as the latter enters the whirl chamber, and a nozzle forming a restricted whirl chamber outlet for forming the whirl chamber of a centrifugal steam and water separator disposed within the steam space of the drum, means forming a whirl cham separated water, said nozzle being disposed trans ber steam inlet open to the steam space of the drum and directing the incoming ?uid substan tially tangentially into the whirl chamber, means versely of the ?ow into the whirl chamber steam inlet so as to direct the separated water across the flow of steam into the whirl chamber steam whereby relatively pure feed water is discharged l0 inlet. in a let within the said whirl chamber inlet and EDWARD J. KERR.