USRE12349E - tomlinson - Google Patents

Description

No'. 12,349. Y REISSUED MAY 23,1905, R. D. TOMLINSONi CONDENSER.

APPLICATION FILED NOV. 29, 1904.

4 SKEETSSHEET l i flimg REISSUE'D MAY 23, 1905.

4 SHEETSSHBET 3.

[NVENTOR R. 1).TOMLINSON.

CONDENSER.

APPLICATION FILED NOV. 29, 1904.

WITNESSES.-

Reissued May 23, 1905.

PATENT OFFICE.

ROYAL n. TOMLINSON, on NEW YORK, N. Y,

' CONDENSER.

srnorrrca'non' forming art of Reissued Letters Patent No. 12,349, dated May 23, 1905. Original No. 724.972, dated April 7, 1903. Application for new filed Hoveinber'29,1904. Serial Ira-2:44.815.

To all whom it may concern-l- Be it known that I, ROYAL D. oMLINsoN,

lowingis a specification.

-The improvement applies to that class in which there is a special passage leading to a .second air-pump for abstracting the air and preventing it from accumulating in the upperportion of the condenser, thus contributing to the completeness of the vacuum. Such, air, mingled with weak steam, has been taken away by a scparate'air-pump. I have discovered that these'cond air-pumpmay be'dispensed with and the small quantity of air in an attenuated condition which has been brought in with the steam and with the water of condensation or even. the sometimes larger quantities which may come in through small leaks in the apparatus may be more effectually taken away and mingled with the water going into an ordinary single air-pump by a simple ad- 'dition to-the'l'ong-approved construction. I

provide by a'sm'all jet of live steam properly directed into .such passage for maintaining a slightly-stronger eductionthereinr The following is a description of what I consider the best means of carrying out'the in vention.

The accompanying drawings form a part of this specification.

Figure 1 is a central vertical section of thecondenser and its immediate attachments. Fig. l.is a corresponding view showing a modification. Fig. 1 is an enlarged vertical section of the modification shown in Fig. 1",

i but showing more clearly theslight' lip on the plied to a surface condenser.

curled rim. of the flange on the water-inlet pipe. Fig. 2 is a longitudinal section of one of the details on a larger scale.

Fig. 4 is a section showing the invention ap- Fig. 5 is a crosssection of a portion shown in Fig. 4 on a larger scale. I

Similar letters of reference indicate corresponding. parts in all the figures where-they rp 4 Referring to Fig. 1, A is the engine, B the a citizen of the United States, resi' ing at New York, State of New York, have invented Im-.

before Fig. 3 is a corresponding section showing a modification...

exhaust pipe and D the condenser. E isa I liberal passage leading from the bottomotthe condenser, and F is an air-pump, shown'as a duplex Worthington. This air-pump, in addition to its usual function of taking out from' the bottom of the condenserall of the' water with some of the thin steam and air, also serves g to remove a quantity of thin air taken froma high point inthecondenserwhere the air is.-

liable to accumulate. The air-pump should in theory be a little larger than isrequired for ordinary condensers; but my experiments indicate that the increase in size required to serve successfully with my invention isso slight as to be insignificant. The ordinary proportionsmay obtain. The condenser is of the jet class,'flowing water as cold as can he commanded intothe condenser and bringing it into direct contact with the exhaust-steam;

G is a spreader operated by means of a stem G and hand-wheel G which stands in the path of the strong jet received through the pipe P. The upper end of the latter flanged-outward, as indicatedby-P'. -Its rim is curled downward, inward, and upward underneath, as indicated by P Its upper surface is ridged radially, and around the largest diameter is a slight lip P. Q is an outer shell inclosing the pipe P andcurved to correspond therewith. The upper end ot' this pipe Q is pipe is extended, as indicated by Q The construction thusshown forms a pocket'in which 'wa ter will rarely, if ever, enter. It IS a small pipe connected to a low point-1n the large pipe or shell Q, andextending out'through the tight litting nozzle 1) in the condenser. This with a peculiar nozzle W,which 1 will describe pipe is controlled by a valve R, after passing formed more minutely farther on. This pipe R draws out the contents of the annular curved space between the pipes P and Q and maintains or seeks to maintain a slightly-better vacuum in such space than obtains in the main body of the condenser. It prevents any accumulation of air in such space. R is adepression adapted to receive and retain any water which may by any chance get in to the annular space between thepipes P and Q. A pipe T extends down- .ward from the bottom of this depression with,-

in the'base of the condenser and is bent'fa nd extends along a little in the passage E. The

Y end of this *pipe T is also equipped with one I v I will now describe minutelv-the nozzle W.-

' tent condensation in its mouth.

'ratus it will sometimes, though. rarely, be the is delivered 3 through one or botli of the pipes I the water flowing through E will be so largely of-my peculiarnozzles. In theabsence of any water this pipe T can, in common with the pipeR;-deliver air and thin-steam downward; but its actionwill differ from,-that of the pipe R in the fact that there is in T no,

jet of fresh'steam to quicken the motion of its contents.

There is a liability to concussive action when a steam-pipe is allowed to discharge under .water. I ascribe this to the freedom for the approach and retreat of the water in an ordinary open vessel'and the consequent intermit- In my appa:

factthat the thin fluid which R and '1 into steam that-such concussive action may occur. I provide against this by a provision attached to the end of each pipe R and T, and also'to the end of another which I will describe farther on i'n connection with a modification; I

will show one example ofsuch nozzle on a I 'gling and condensation are certain to be larger scale.

Referring to [Fig 2, R is the end. of the pipe R proper, slightly tapered, as shown, and

is an inclosing tube correspondingly tapered, but of larger diameter and extending considerably beyond. It is held in position by thin radial arms W. regulate and direct the access of water to the issuing current of air and steam that the minconcussion. 4

It will be observed that the concentric pipe or casing Q, constitutes, in effect, a pipe (a passage) leading from a high point in the condenser down to the junction of the pipe R, which takes out thcair. forms shown in Figs. '1, 1", l 3, and 4 is taken from'a high point in thecondenser. In all the forms the passageconnects tot a dry smoothly continuous without any appreciable point in the condenser, one in which the air' would otherwise accumulate. I Modifications may be made without departing from the principle or sacrificing the advantages of the invention. The forms and PTOPOIEIODS of 'the parts maybe varied. 1

' the descending current of water. 7

also shows the pipe R*, correspondlng to R,

'- tical descent from the condenser may be increased to any requlred extent. This hgure The effect is to so inclosing the injection-pine P,.

In that point of view the 'air in the attach importance to the conoidal form of the top of the condenser, as shown in l and '3, because it'provides sufiiciently for the spreading of the injection-water and reduces the possibility of pocketing any air there. Parts of the invention may be used without others.

Fig. 3 shows a pipe corresponding'to the pipe T, extending downward only a little-way, but so far as to be certain to be immersed in. This ligu re inclined in the opposite direction to that'in Figil and leading into an extended descenda ingportion D'*of'thecondenser. 'lhesemodified pipes are shown as equipped with my n07. zle for avoiding concussions. The pipe M*, giving the live-steam jet in this Fig. v3, enters the pipe'D* and serves substantially in the same manner as before described. The vershows it as broken off and its lower end brought up to shorten the 1ig'ure.- Ifthc situation allows the extension down to a sulhcieut depth, tho-delivery of the water will by my invention thus arranged be accomplished without an air-pump. In short, this figure shows my invention applied to what is often designated a barometric" tube-condenser.

Fig. a shows the invention applied to a surface condenser. C is the body of the 001i denser; (J, the tubes therein conducting water through the steam-space c, the discl'iarge from the bottom of the condenser corresponding to I00 the passage E inFig. 1. R** is a pipe corresponding to R in Fig. 1,-d1scharg1ng in a similar manner into the currentof water flowin'g-to-the air-pump, and M is a live-steam pipe corresponding to'the pipe M in Fig, 1. 5 In this form 1 indicates a series of horizontal pipes liberally perforated along their under sides and shielded from water by wings I.

The air is drawn into the pipes I through the.

perforations z and gathered in the header J and led away through the pipe R. Ican use the jet of live steam for inducing or tending to induce a higher vacuum in the air-space in the condenser, or I can use a second air' pump H, sometimes known as a dry vacue 5 urn-pump, for the same purpose.

-['can introduce the deliveryof the second (the dry) vacuum-pump H into the suction-chamber of the wet-air pump F, thereby reducing the:

;workrequired of the dry vacuum-pump by In reason of the decreased pressurethat it must work against. .The left side of Fig. lshows I a construction in which this latter point isinvdlved. In this figure the descending pipe R is omitted and the thin air drawn from the 5 eondenser through the pipe R instead of be mg acted on by a live-steam jet and receiving an impulse therefrom isled upward, and any water or oil which it separated in acharn'ber;

may contain may beits-shown.- The thin 3 wet-airpump;

gaseous matter is then led' upward to a height to which the atmospheric pressure annot sustain the water, so that no water is liable to pass to the dry vacuum-pump H, thereby damaging it. 'The air is then led to such pump and the delivery therefrom is shown as led downward by the pipe H. to a low level and thence horizontally under the water-passage and upward into the suction-chamber of the The direction of the current in the various parts is indicated by arrows.

I claim as my invention- 1. In a condenser having connections for separately discharging water and air, provi sions for discharging the air into the stream of water being carried therefrom in a direction corresponding with the motion of the latter, and provisions for promoting the flow of the air through such passage, all combined substantially as herein specified.

,2. In a condenser having connections for separately discharging water and air, provi-. sions for delivering through such air-passage into the water-passage so that such delivery 3 is subject to :vacutnn, combination with means for turther'promoting the flow of the 'air through the air-passage, all substantially herein specified.

3. In a jet-condenser, a steam-inlet at the top. a water-injection pipe at a lower level and meanscontinuous with the pipe-surface for guiding the Water outward to form a gravity-seal.

4. In a jet-condenser, a steanrinlet at the top. a water-injection pi pe at a lower point, an outwardly-extending liangc at the upper end of the pipe, the rim of the flange being downwardly curled, and a substantially hori zontal lip on the rim.

5. In a jetcondenser, a steam-inlet at the top, a water-idiection pipe at a lower point, an outwardly-exteiuling flange at the upper end of the pipe-{the rim of the flange being downwardly eurhichanda lip on the rim around the largest diameter;

6. In a jct-corulcnser,

the largest diameter,

a steam-inlet at the top, a water-injection pipeat a lower level,

7 7. In a jet-condenser, a. steam-inlet at the top, a water-in ection pipe at a lower point,

an outwardly and then downwardly extend-- ing flanged portion at the upper end of the pipe, a substantially horizontal hp on the flanged portion, and means for removing air from below the flanged portion.

8. In a et-condenser, a steam-inlet at the top, a water-injection pipe at a lower point,

an outwardly-extending flange at the ,upper end of the pipe, the rim of the flange being downwardly curled, a substantiallyhorizontal lip on the rim, and means for removing air from below the flange.

9. In a jet-condenser, a steam-inlet atthe top, a water-injection pipe at a lower point, an outwardly-exteudmg flange at the upper end of the pipe, the rim of the flange being i downwardly curled, a lip 0n the rim around and means for removing air from below the" flange. v

10. In a eondenser'having connections for separately discharging water and air, a dryair pump in the air-discharge passage and connections for delivering from such air-passage into the water-passage so that such dclivery is'subiect to vacuum.

11. In a condenser having connections for separateLy discharging water and air, "adryair pump in the air-discharge passage and connections for delivering from such dry-air pump into the water-passage so that such delivery is subject to vacuum. a

In testimony that I claim the in vcntiou above set forth I aiiix my signature in presence of two witnesses.

ROYAL TOMLINSON.

'itnesses;

GEORGE lixi tz, "11. 'laarra.

Images