US1002753A - Ejector, condenser, and air pump or compressor. - Google Patents

Description

E. S. G. EEES. EJEGTOR, GONDBNSBR, AND AIR PUMP 0R COMPRESSOR.

APPLICATION FILED AUG. 6, 1919.

Patented Sept. 5, 1911.

2 SHEETS-SHEET 1.

I I I 2 SHEBTSLSIIIEET 2.

'Patented sept. 5,1911.

E. S. G. REBS. JBOTOR, GONDENSER, AND AIR PUMP OR COMPRESSOR.

- APPLICATION FILED AUG. 6, 1910.

i Umm ,enMUNn sobre eusravn iiainsaor Wonvnananrron, ENGLAND saneren, connaissait, ann Ain PUMP 'on conrnnsson.

Specification of Letters lPatent.

Application filed August 6, 1910.

Serial No. 575,974.

provements in Ejectors, Condensers, and Air lumps or Compressors, of which the following is a specification.

This invention relates to ejcctors, condens-ers, air pumps and compressors of that type in which the air or steam or other noncondeusable. or condensable gasis entrained" in streams of Water issuing from two or more jets or nozzles, which streams of water may or may not impiuge on each other prior to encountering the gas to be entrained, or unite to form a single stream in the ejectorpipe. i

'lccording to the present"invention a maximum entraining surface is obtained by so subdividing the streams that they impinge on each other to form a fanlike sheet or sheets of Water, vsuch sheets being also at the same time and by the saine means sprayed or sub-divided. These sheets of water of which preferably there are several converging toward each other so as to form with the entrained gases a compound or laminated sheet, aredireeted into the narrow elongated linlet or inlets of anexpanding passage or passages inV wwhich the pressure et' `theavater and the entrained gases is raised to the pressure of discharge.

The invention may be applied either, as shown in Figures 1 to .5 of the accompany.- ing drawings, to a stationary apparatus in which velocity is imparted to the Water in suitably directed nozzles to which the water is delivered under pressure; Figs. l'and 2 being longitudinal sections in planes at right. angles to each other and Fig. 3 a transverse section on line 3-3 of Fig. l, Fig. 4 a longitudinal section of a modiiied construction and Fig. 5 a section on line 5 5 i of Fig. il, or as shown in longitudinal section in Figs. G and 7 and in transverse section in F 8, two centrifugal pumps or equiva lent rotary apparatus may be used to profduce the streams of Water and project them so as to at a suitable velocity, and ai'iple within the condensing or gas-entraining cli-airliner of a stationary ejector apparatus, Figs. l' and 8 being transverse sec Patented Sept. 5,

tionsk of `the ejector taken on lines 7 7 and j afs of 'rig` In the apparatus shown in Figs. l-3 Water is delivered under pressure to chamber; z which is closed at its delivery end by aplate or grid Z) having holes or nozzles ciiorined` therein andmutually inclined in` pairs as show-n, Thev streams ot water issuing" high velocity from the individualnzzles each pair impinge'within an inlet e connecb at of ed with the space or vessel to be exhausted,`4`

and form fan-like sheets indicated at hav ling resultant directions such lthat these various sheets of rain or spray are projected eonvergmgly into the narrow elongated mouth' g of the expanding passage g which is designed to raise the pressureof the Waterf .together With the entrained gas or gasesto that of the atmosphere, or otherwise to that of the space into which they are delivered.

The form of the expanding passage g is preferably that Aobtained by iiattening 'tlie walls of a tube continuously and gradually from the ydelivery end g2 Which is circular,

to the inlet end g which is 4narrow and subAA stantially rectangular. As shown, this orin is obtained by inserting in a circular pipe a block or blocks h shaped to give the required opening g at the inlet end and so disposed longitudinally of the pipe thatthis openingis substantially at the point, of con` vergence ol the sheets of Water f. As there of maximum. constriction and thence with a -in shown the block 71, vis formed with a con-` i 3 to the ll opening of the pipe.

Fig., 4 shows in longitudinal section a' modified construction of this static ejector.

In this figure the nozzles. care distr'buted in circles around the suitably inclined lower Walls or" the chamber a which is supplied with Water under pressure. As in the construction of Figs. l to 3, the nozzles c are mutually inclinedl in pairs to form fan-like sheets of Water,v the direction and velocity of which are such that these sheets of Water are projected toward an annular neck g leading to a series of expanding passages g which int-urn deliver to chamber z' at. the base of the ejector provided with outlet which may or may not he connected With a centrifugal or other pump. The annular neck g and expanding ducts g are formed between the external easing and an internal shell or dome, the interior of which is placed in communication with the outside of the casing by means of .a' pipe 7' opening into the top part of the dome," which pipe may De 5 connected with a pump or other eXha-ustin f apparatus. Drainage holes la are provided as shown to convey any leakage Water yor condensed steam from the chamber d, which isconnected With the space or vessel to be exhausted by inlet pipe e, to the chamber through annular neck g and expanding passages g. As shown in Fig. which is atransverse section on line 5 5 of Fig. 4, ther streams of Water from the nozzles 0, after impinging 'on each other, form fan-like sheets of rainlv Iorspray which ll the Whole or substantially the Whole periphery or the annular necl g.

.Infthe apparatus shown in longitudinal 2p sectibn in Figs. 6 and 7 the impinging streams of Water 'are shown as obtained by a pair of oppositely rotating reverse turbines. Tater is delivered to the fixed ann ular'shells sgat onepoint of the periphery of Which vare a number of nozzles s through which the Water is ejected in streams into rapidly rotating wheels t having vanes t' so curved as to fling the Water at a highvelocity and in streams Whichy converge usually '30 at a comparatively small angle, e. consider-ably less than a right angle, Within a chamber u vvhich communicates with the @Space to beie'x'hausted.

i The fane'like sheet of sprayed Water formed by thehimpinging streams is directed into a contracting pipe o'ot' dat section aper- "ture Which in tlurn delivers to lan expanding pipe o of similiariaperture, carrying with it the gas "'entrained in fth'eiihpinging streams. 40 The contracting and; expanding ducts o o may be formed in the manner described With reference to Figs. l, 2 and 3.

Having now described the nature of my said invention and the best means L know of carrying the same intoy practical effect, I

vclaim:-

1. An ejector, condenser or the like apparatus comprising means Ator projecting streams ofv Water so as to impinge on each other and forma fan-like sheet of sprayed Water-,and an ejector into which the 'sheet of Water is projected.

y 4.2. An ejector, condenser or the like apparatus comprising means for projecting streams of Water so as to'impinge on each other andv form a fan-like sheet of sprayed Water, and an ejector into which the sheet of Water is projected, said ejector having an expanding passage with a narrow elongated inlet.

3. An ejector, condenser or the like apparatus, comprising means for projecting streams of Water so as to impmge on each other in pairs and form converging sheets of streams of Water so as to impinge 0n each other and form a fan-like sheet or sheets of sprayed Water, and an ejector into which the said sheet or sheets of Water are projected, said ejector comprising a pipe and a pl vg or plugs secured therein, said plug or plugs being formed to leave a` central passage the cross section of which changes gradually from a narrow elongated aperture at the inlet end to a circular aperture of the diame ter of the pipe at the outlet end of said passage.

5. An ejector, condenser or the llke apparatus, comprism a Water pressure a plane at right angles to the plane of the I mutually inclined nozzles.

6. An ejector, condenser or the like' apparatus, comprising a water pressure chamber, a plurality of co-planer nozzles leading from said chamber and so inclined that the issuing streams of Water impinge on each other in pairs, and an expanding passage in the ejector having a narrow velongated inlet in a plane at right angles to the plane of the mutually inclined nozzles.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

' EDMUND SCOTT GUSTAVE REES.

lWitnesses:

JOSEPH MILLARD, VALTER J. SKERTEi

Images