US1409944A - Surface condenser - Google Patents

Description

' H. M. GRAHAM.- SURFACE CONDENSER. APPLICATION FIL'ED JUNE 9, l1920. 1,409,944 Patented Msi-r. 21, 1922.

2 SHEETS-SHEET 1.

'H. M. GRAHAM.

SURFACE coNnENsER.

APPLICATlON FILED JUNE 9, 1920.

2 SHEETS-SHEET 2.

UNITED STATES PATENT o1-1 *1YCE.-v4

HAROLD M. GRAHAM, 0F PITTSBURGH,

PENNSYLVANIA, AssIGNoR 'ro ELLIOTT COMPANY, OF PITTSBURGH, PENNSYLVANIA," A CORPORATION 0F PENNSYL- VANI.;V

ings, forming part of this specification, in

which;

Figure l is a view, partly in side elevation and partly in vertical section showing a portion ofthe surface condenser lembodyingmy invention, and

lgure 2 1s a view partly in end elevation and partly in vertical section ofthe condenser. p

My invention has relation lto surface condensers and is Vdesigned to provide a construction and arrangement of the surface condenser and its circulating and condensate pumps Vsuch that the work of disassembling the pumpsfor inspection and repairs reatly facilitated. A f

eretofore, surfacev condensers have been made with a condenser shell, mounted directly over the pumps, in such a manner that the units have. been made very com-pact; vbut there has been great difficulty in disassembling the pump structures owing to the fact that many of the parts are inaccessible. The result has been that thelabor of demounting them in case they had to be inspected, or in case of trouble in their operation, has been such to 'impair the success of thel apparatus.

The nature of myinvention will be best understood by reference to the accompanying drawings which will now be described,

it being premised, however, thatl various changes may be made in the detailsof construction, arrangement and combination of the parts, without departing fromthe spirit and scope of my invention as defined inthe appended claims.

In. these drawings, the numeral 2 designates the shell of a surface condenser which is partially supported on one or more feetB, and the pump-end of which is supported on the. circulating pump 4. This pump is, in turn, supported on removable vblocks 5 which are inserted between the pump and the mainy foundation in such a. manner that they may bereadilyremoved to permit the pumps to SURFACE CONDENSER.'

1920. serial Nd. 387,774.

meval. y7 designates .the condensate l pump and 8 the hot Well. [This hot well is suspended from the condenser, and Ypartially Specification of Letters Patent. Patented 21511922 Appneatin mea Jane e, Y.

ke oY supports the casing of the .condensate pump,

said casing being further supported by the 'i rigid hollow connecting member 7a connected to the casing of the circulatingpump; i

It will be noted 'byreferenceto Figure 2 that' the Y longitudinal lcenter line of the pumpsis offset (to the right, looking at Figure 2) with respect to the center line of the condenser.r Each of the ,pump casings is split vertically in a longitudinal. vertical plane which coincides with thecenter ofthe pump shaft 9, this plane being preferably just to lone side of the connections between theY condenser and the pumps. The connecting inemberEL doesy not entirely enclose the shaft, buthas an open side which permits removal'of the pump shaft and. also the shaft. This member 'is preferably also formed with a detachable transverse joint at 7b. Each pump casingphas ankv endwise extending bracket 7 c which supports abear-V ing 7d for the shaft 9. These bearings are of the usual split character; and the boxes The shaft 9 is1 provides foraccessto the stufling boxes for them beingshown at 10. in Figure 2) can be quickly and easily taken'of and the shaft and pump rotors removed laterally in the space underneath the overhanging portion of the surface condenser shell. In. effecting this removal, the covers of the boxes v7e are removed. The upper'halvesof the sectional bearings 7d are then removed and the4 lower halves turned on the 'shaft journals Ato a position above said journals where they can alsoV be removed. The shaft is thus entirely freed and may be laterallyremoved,together with its stuiing boxes andthe rotor elements carried thereby. It is, therefore, possible to bring the yfoundation walls of the turbine Vwhich lthe condenser serves, up to approxi-1;.

the condenser shell when said connections are detached, substantially as. described.

14. The combination with a condenser, of a circulating pump therefor, a. condensate pump, and means for rigidly connecting the ca-sings of said pumps,k said means having an open portion and the pump casings being split in longitudinal vertical planes, substantially as described.

15. The combination with a condeuser,ofa circulating pump therefor, a condensate pump, said pumps being Vplaced under the condenser and having their casings split in longitudinal vertical planes, and mea-ns rigidly connecting the casings of said pumps, said means having an open side portion, substantially as described.

16. The combination with a condenser, of

a circulating pump therefor, a condensate pump, said pumps being placed under theA condenser and having their casings split in longitudinal vertical planes, and means rig# idly connecting the casings of said pumps, said means having a laterally open portion, and said pumps having a common shaft removable laterally from the pumps upon removal of portions of the split casings, substantially 'as described.

17. In condenser apparatus, the'combination of a condensate pump and a circulating pump, said pumps having their casings split in longitudinal vertical planes, andamember rigidl connecting said casings and having a latera ly open portion, substantially as described.

18. In condenser apparatus, the combination of a condensate pump and a circulating pump, said pumps being placed side by side With longitudinally aligned shaft bearings and having their casings split in the same longitudinal vertical plane, a hollow member rigidly connecting the casings of thetwo pumps, and a shaft common to the two pumps and extending through the connecting member, substantially as described.v

19. In condenser apparatus, the coinbt nation of a condensate pump and a circuthe two pumps and extending through the connecting member," each of-k said casings also supporting outer bearings for said shaft substantially as described. v

20. In condensing apparatus, two centrifugal pumps having aligned stuffing boxes" and shaft bearings and having their casings split in vertlcal longitudinal planes, to-

Y gether With means for rigidly connecting said casings and' which permits access to said stuffing boXes,.a common shaft for said pumps, and means rigidlyconnected to said casings and carrying bearings for said shaft, substantially as described.

21. The combination with a surface con i denser, of a circulating pump over and upon which the condenser is supported, ak condensatepump in line With the circulating pump, y ya coupling rigidly connecting the casings of said pumps, said pumps being splitin theV same vertical plane, and said pumps being offset with respect to the longitudinal vertical center of thecondenser, substantially as described.

22. The combination with a surface con-v denser, of a circulating pump over andupon Which the condensate is supported, a condensate pump in line with the circulating pump,`

a coupling rigidly connectin of said pumps, said pumps eing split 1n ing oiset with respect to thelongitudinal vertical center of the condenser, together with a pump shaft common to both pumps the casingsr Vthe same vertical plane, andsaid pumps beand removable laterally with' its.` carried pump elements when the split portions of the casings are removed, substantially as described. I

In testimony whereof, I have hereunto set my hand. HAROLD M. GRAHAM.

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