US1546124A - Condensing apparatus - Google Patents

Description

July 14, 1925. '1,546,124 E. R. GQODRICH GONDENS ING APPARATUS July 14,1925.

E. R. GooDRlcH CONDENSING APPARATUS -Sheet 2 4 Sheets v F'iled April r7 July 14, 1925. v 1,546,124

E. R. GOODRICH CONDENSING- APPARATUS Filed April 7, 1921 4 Sheets-Sheet 5 July 14, 1925.

E. R. GOODRICH CONDENSING APPARATUS Filed April 7, 1921 4 Sheets-Sheet 4 Patented .luly 14, 1925.

UNITED STATES ELIZUR RAYMOND GOODRICH, OF ROSELLE PARK, N'EW JERSEY, ASSIGNOR '.lO

WHEELER CONDENSER & ENGINEERING COMPANY, OF CARTERET, NEW JERSEY.

coNnENsING APPARATUS.

Application filed4 April 7, 1921. Serial No. 459,266.

To all wrmt t may concern:

Be it known that I, E LI ZUR .RAYMOND GooDRICH, a citizen of the Unlted States, re-

I siding at Roselle Park, in the county of Union, inthe State of New Jersey, have invented an Improvement in Condenslng A pparatus, of which the following is a speelfication.

This invention relates to a part of a steam condensing apparatus and more especially to an apparatus employed in con]unct1on with a steam condensing system in which.

the apparatus is used as an ejector pump, such for example as shown and descrlbed in the Patent No. 968,926, granted August 30, 1910, to Fischer. This patent discloses an ,ejector pump or compressor in which the steam andair or other gas is moved by the steam from an ejector nozzle in successive stages and the steam is condensed or separated from the gas between each Stageof the operation Whether it be compressing theA gas or otherwise. The particular object of my present invention is the provision of an apparatus toV be used in a steam condensing system in which the condensate 1s carrled to and heated in a primary heater or intercondenser to the temperature of the vacuum therein and then is conveyed to and further heated in a secondary heater by the exhaust from the steam ejector or ejectors employed, as will be hereinafter more particularly described.

In the drawing: Figure 1 is a central longitudinal cross section of an apparatus embodying my present invention.

Fig. 2 is a side elevation of the same.

Fig. 2aL is an elevation ofthe inner face of the water bonnet 19.

Fig. 2b is a similar view of the Water bon-` net 18.

Fig. 2c is a central vertical section of the left hand end of the apparatus as shown in Fig. 2.

Fig. 3 is a central longitudinal cross section and partial elevation of another form of the apparatus,

Fig. 4 is a side elevation of the form of apparatus shown in Fig. 3.

Fig. 4a is a centralvertical section at the left end of the apparatus, and

Fig. 4b is a similar section at the right end ofthe apparatus as shown in Fig. 4.

Referring to the drawing and first parable positions, flanged bosses 11 and 12. In-

teriorly this body member is provided with a partition wall 13 which extends from the top thereof to a line an appreciable distance from the bottom thereof, dividing the interior of the shell into compartments with one of which an opening in the wall of the shell surrounded-by theboss 11 communicates, while an opening in the shell surrounded by the boss 12 communicates with the other compartment. In a suitable position in the bottom of the shell, the same is provided with a tap 14 to which a drain pipe 15 is-connected. The opposite ends of the tubular shell are flanged as plainly inby connected. At one end and against theA tube plate 16, a water jacket or bonnet 18 is secured, While at the opposite enda water 4jacket or bonnet 19 is likewise secured, the parts being connected in any suitable manner. Vithin the shell and substantially filling the. compartment A, there are banks of tubes 20 extending between and suitably connected at their extremities in the tube plates 16 and 17, and similarly in the compartment B in the shell 10, there are banks of tubes 21 extending between and suitably connected at their extremities in the same tube plates 16 and 17. In the water bonnet 19 there is a condensate inlet connection 22,

. and in the same water bonnet there is a condensate outlet connection 23. The condensate inlet connection is connected` by any suitable means to the condenserfor other chamber from which the steam and air or other gases are to be drawn, and as will be outlet 27. Cooling water from a suitable 'source is supplied to and through the .circulating water inlet 26 to a compartment d in the water bonnet 18, thence through the upper bank of tubes in the compartment B to the chamber e in the water bonnet 19 and thence through -the lower bank of tubes in the compartment B to the chamber f in the of the auxiliary heater body, there is a' flanged boss 32 surrounding an opening in the wall of the auxiliary heater body, and adjacent the bottom of the auxiliary heater lbody there is a tapped opening 33 in which there is connected a drain pipe 34 having a vent 35 or stand pipe also associated therewith. It will be'un'derstood, however, that separate openings in the auxiliary heater body may be made for a vent pipe connection which is independent of the drain pipe connection, as such a construction is 'an obvious equivalent 'of that illustrated and described. The ends of the auxiliary heater body are also flanged and tube plates 36 and 37 are suitably connected thereto. At one end a water bonnet 38 is connected to the tube plate 36 an'd at the other end a water bonnet 39 is connected to the tube plate 37. Interiorly of the body of the' auxiliary heater there is a bank of tubes 40 extending between the tube plates, and at their ex'- tremities suitably connected to the said tube plates. In the water bonnet 39 there is a condensate inlet 41 and connecting this inlet with the condensate outlet 23 in the water bonnet 19, there is a pipe 42. Similarly in the water-bonnet 38 there is a condensate outlet 43. Together with the heater members hereinbefore described, I also employ steam jet ejectors for moving the mixture of steam and air or other gases from the condenser or other chamber to be evacuated. 44 indicates an expansion tube which at one en'd is flanged and secured to the boss 11 preferably at the top'of the body of the main heater 10. Connectedat the upper or outer end of the expansion tube 44 is an elbow 45. This elbow'is fitted interiorly with a partition wall 46 in which there is mounted a steam jet expansion nozzle 47. Also between the nozzle 47 and the adjacent end of the expansion tube, I may employ a throat piece 48 into which the outer end of the expansion nozzle preferably extends. In

the elbow 45 there is also tted a valve 49 for regulating. the extent of the opening of the .admission port in the expansion nozzle 47. `Furthermore, one'end of a steam pipe 50 is connected to the valve chamber in the elbow 45, while the other chamber-therein is adapted to be connectedto the condenser or other chamber to be evacuated.

As illustrated, I also employ a second elbow 51. AThis may be similar in all respects to the elbow 45 and is suitably connected to the boss 12 so that the compartment B communicates with one of the chambers in the elbow 51 provided therein by a partition. wall 52. In this partition wall there is an expansion nozzle53, the outer or delivery end of which extends appreciably into the throat piece 54. The other end ofthe elbow 51 is connected to one end ot the' expansion tube 55, the other en'd of which is connected to one side oi an elbow 56, the opposite side of which is connected to the flanged boss 32 on the auxiliary heater body. A steam pipe 57 in which there is a suitable valve 58 is connected to the valve chamber in `the elbowal, the valve therein being the same as that disclosed in the elbow 45. As herein illustrated, I 'have shown a single ex- ,pansion nozzle 47 in the primaryl stage ofv the operation of theapparatus and also a single expansion nozzle in the secondary stage of the'operation of the apparatus. It will be understood that without departing from the nature and spirit of the invention a plurality of steam jet expansion nozzles may be employed either in the primary stage or the secondary stage or in both the primary and secondary stages, and furthermore that in the use of a plurality ofnozzlesin either stage when the diameter or bore of they nozzle is relatively `small'it is desirable to use a screen at the end of the steam supply pipe to prevent any particles which may be included in the steam from becomin engaged in the passages of the nozzle to o struct the same and thus prevent the free steam therethrou h.

In the use of t is apparatus, steam is admitted vthrough the pipe 57 to the valve chamber in the elbow 51, andirom this valve chamber by way of the pipe 50 to the valve chamber in the elbow 45. From the valve chamber Fin the elbow 45 depending passage of the u on the position ofthe valve 49, stealn'is a mitted through the expansion nozztef47= into the expansion tube 44, and dueto'- thevelocity acquired by the expanding steam,

the steam and air and other gases in 'communic'ation with the other elbow compartment are carried along to the compartment A in the main heater body 10. These gases, together with the steam from the steam jet nozzle surround the banks of tubes in the compartment A and raise the temperature of the condensate which is conducted lng sion nozzle of the ejector in the elbow 51 into the expansion tube 55 so that the velocity acquired by the expanding steam creates a vacuum iny the compartmentB and carries therefrom the air and other noncondensible gases which pass from the compar'tment A to the compartment B in which latter the steam and other condensible gases are condensed and carried to the drain pipe 15. The steam from the ejector nozzle in the elbow 51 and the air and other non- Vconden'sible gasesI from the chamber B are conducted through the expansion nozzle 55,

v the elbow 56'to the interior of the auxiliary way heater body 28 surrounding the banks of vtubes therein so as to enable the steam to further heat the condensate which is carried from the primary or main heater body by way of the pipe 42 to the interior, that is, through the tubes in the auxiliary heater body so as to be ,further heated therein before passing from the auxiliary heater by of the condensate out-let 43 to be re-- turned to the boiler or other heater or a paratus. Obviously, the steam from t e interior of the auxiliary heater, together with the non-condensible vapors which pam from the chamber B in the primary heater 'are conveyed from the auxiliary heater by the drain pipe 34.

By reference to Figs. 3 and 4, it will be seen that instead 'of employing the main and auxiliary heaters as separate bodies, the same may be contained in a unitary structure. In thus carrying out the invention,

I employ a. shell or body member l59 in which there is'a transverse partition wall 60 dividing the interiorthereof into two.

v separate compartments, the lower of which comprises the auxiliary heater compartment, while the upper comprises the main or primary heater compartment. In the.

upper compartment there is also a partition wall 61 extending from the upper wall of the body 59 to a line appreciably distant from the transverse partition Wall 60. This vertical partition w@ 61 divides the upper compartment into two compartments, one of which is a heater compartment, and the other the. conde/user compartment. In the heater compartment CV there are banks of tubes 62, 63, 64 andA 65, while in the condenser compartment D there are banks of thence to and through the upper bank of tubes 62 to a chamber L in the water bonnet 90; from the chamber h this condensate passes through the next lower bank of tubes 63 to a chamber i in the bonnet 89 from which the condensateipasses through the next successive lower bank of tubes 64 to a chamber j in the bonnet 90; from the the chamber j the condensate passes through the bank of tubes 65 to the chamber In in the bonnet 89. From the chamber lo the condensate passes through the bank of tubes 68 in they auxiliary heating chamber to the condensate outlet connection 70 in the other water bonnet from which the. heated condensate isv conveyed to the boiler or other apparatus.

Similarly also in one of the water bonnets there is a circulating water inlet 71 and a circulating water outlet 72 so.l that the circulating water may be passed throughv the former to and through the bank of tubes 67 and then to and through the bank of tubes 66 to the circulating water outlet 72 to provide condensing meansin the chamber or compartment D.

In this structure as in that hereinbefore described, steam from a suitable source is passed through a valve in the steam pipe 73 to the valve chamber in an elbow 81 and through a steam pipe 74 therefrom to the valve chamber in an elbow 75 which is connected to the main condenser or other chamf ber -from which the air, steam and other ases vare to be withdrawn. The elbow 75 1s connected by an expansion tube 76 so as to provide communication between the valve inlet side .in the elbow 75 to thel compartment C in the heater so that the steam from the ejector in the elbow 75 is employed; in the compartment C to' heat the condensate, the steam and gases passing into the compartineht C through an in et opening 77 in the top of the body of the heater. The steam and other condensiblegases are drawnl from the compartment C to the compartment D by the steam passing through the ejector nozzle in the elbow 81 which is connected to the compartment D by an elbow 80 through an opening 79 in the upper wall of the heater and the steam and other condensible gases are condensed in the compartment D and conveyedpaway by the drain pipe 78, whereas the air and other non-condensible gases are carried along by the 'velocity acquired by the steam from the ejector in the elbow 81 and vpass through the expansion tube 82 through the elbow 83 and an opening 84 in the side wall of the heater 4p into the compartment in the auxiliary heater portion thereof so as to surround the banks of tubes 68 therein to further heat the condensate while the same is passing through these banks of tubes 68. The lair, Steam and other gases from the compartment in the auxiliary part of the heater are conveyed away through a drain pipe 85 secured in a tapped opening 86 adjacent the bottom of the auxiliary heater compartment and as illustrated, the drain pipe 85 may be provided with a discharge pipe 87 and also with a vent or stand pipe 88.

From the foregoing, it will be apparent that in the use of the hereinbefore described apparatus, the condensate is heated in the main or primary heater, and then is further heated by the steam from an ejector nozzle in the secondaryfheater, thus materially increasing the efficiency of a condensing plant by permitting the condensate to be returned to the original heating apparatus at a rela tively high temperature.

I claim as my invention: i

1. In an apparatus of the class described, an ejector for moving air and gas, a unitary body having a partition wall extending substantially horizontally across the same and a division Wall extending downwardly a predetermined distance from the top thereof so as to di-vide the interior of the unitary body into three compartments comprising an intercondenser or. initial heater, a condenser and a heater section, the said intercondenser or initial heater being separated from the condenser section by the said division wall and the intercondenser or heater and condenser sections being separated from the heater sectionby the said horizontal wall, banks of'tubes in the interconde'nser or initial heater section for the passage of condensate from a condenser,'banks of tubes in the condenser section for the passage of .body having a partition wall extending substantially horizontally across the same and a division wall extending downwardly a predetermined distance from the top thereof so as to divide the interior of the unitary bod an intercondenser or initial heater, a condenser and a heater section, the said inter-V condenser or initial heater being separated from the condenser section by the said division wall and the intercondenser or heater and condenser sections being separated from the heater section by the said horizontal wall, banks of tubes in the intercondenser or initial heater section for the passage of condensate .from a condenser, banks of tubes in the condenser section for the passage of an `independent circulating medium, and banks of tubes in the heater section con-v nected to the banks of tubes in the intercondenser or initial heater-section, land a second ejector connected to the outlet of the' condenser section and discharging into the said heater section, there being no condenser section associated with the said heater sec-vl tion.

Signed by me this 1st day of'April, 1921.

E. iRAYMOND GOODRICH'.

into three compartments comprising

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