US27979A - Improved feed-water apparatus for steam-boilers - Google Patents

Description

neuer einsam), eurams-nennen.

' `I M EVD [-Rv STEAM .Bp i RS I' Specification forming part of Letters Patent Nolll, datedApril 24, n :j ,j .i

' i Be it vknown'tliat LHnNnY-Gursnn, :of Paris, in the-Empire of France, have invented 'certain new and useful Improvements in Feed Apparatus for Steainand other Boilers; .and I hereby declare the following-to be a full, clear, and exact decriptiou of the same, reference being had to the accompanying draw ing, which represents a sectionalv view of my feed apparatus. A

This invention relates to a peculiar construcf tion and arrangement of apparatus for supplyin g the feed-water or otherliquid t0 steam or other boilers. According to this invention the impulsive force of a .steam jet o'r blast is made to raise and force the fluid required..

For this purposenn apparatus of a 'peculiar construction, but .having no working orfmoving parts is employed.I This, apparatus, which may be considerably modified-without changing the principlepf its action, consists, according to one' arrangement, of a steam -injector which receives the steam from'the boiler and directs it in a'continuous jet into a small passage, the lower end or mouth of-which is expanded suiciently to admit of the entrance of a stream of Water, which, by surrounding the steam-jet pipe, formsl auf annular jet of water with the steam jet in the center. The

4water is drawn from a well, tank, tender, or

vessel in any convenient situation. This-arrangement of jets may, however, be reversedfrom the narrow passage above referred to, the

iet of water enters a second passage, which is expanded slightly at its lower end for a short distance, and also at its upper end, such expansion of the upper lportion being gradual from. the commencementof'the lower expansion.` This lower expansion or conveyance Aserves to maintain the entering jet compact,

v whileltlie: upper direrging portiou'serrcs to diminishlgraduaiiy and without shock the .iin-

petus which has been limparted to the fluid.

A- small valve is interposed between the'` boiler and the jetpipes, soas to prevent*thelA escape of water from the boiler'whcn thefeed apparatus is'outfci action. Byl making they 'steam or waterjet pipe movable'or .adjustable in regard, to each other by means offs'cre'wsor` othersuitabiercgulatingapparatus', the quantity of water elevated vandforccd 'may be com -trolled toa great .nicetyi if v ny a. slight-,medication of uns apparatus" .it may hema-de to serve as a'cock'. This ap.

paratus is .therefore usedf with great advanl., tage as a substitute oi the means'heretofore.- 'employed for the. supplying -of boilers with Water;r it 'hein g" an accessory to the boiler., operating independently 'of the engine, and, being composed of parts the action-of which require no motion, isfnotliable to'wear outq 'The feeding ofthe boiler is'efected by means of any apparatus at all pressures' of steam fromone-iitth of anv atmosphere.' .It is v only necessary to regulate the jet of water accord steamin the boiler..

ing to the" tension attire time .being of 'the j lit4 will be obvious that the feed water is heated to atempera'ture more orless high, according to the' pressure or tension of the steaml The supplying of the boiler witn wateris there.. f

fore e'ected without loss of heat or force and in order that my. said invention may be fully understood, I shall now proceed more particu 'larly to describe the same, andgfor-.that pur4 pose I shall refer lto the drawing hereunto auneared, which representsa vertical section of a vvery simple arrangement ofmy apparatus,

-which may be modified and varied immany..

ways.

direct from th'e'boiler through pipe A., and dis,

charges it in the., formi of Aa constant or cou-j as to admit of the free passage of an annularjet of water, which yisdr'zi'rn up through the pipe D by the 'action of vthe.,steamjet in the chimneyffromihc hot-welter other suppiyuesea v A is a steam-pipe communicating withfthe- 'I boiler. B is the steam-j et pipe, which is tted withacontractednozzle,andreceivesthe steam 'the pressure of steam employed voir, and is'thus broight into immediate contact with the steam, which transmits an impulse toit, and simultaueouslyraises its tem.

perature. A short distance beyond this chim- V ney is a double mouth-piece, E, -one extremity of which 'is gradually eo'ntlactednward', so

as unite or lcollect in lone, compact vein the liquid jet, which issues from the mouthof the i chimney e in a more orless` broken or scattered- .state, while the upper portion of' the i month-piece is expanded gradually, so as to cause the jet-t0 lose successively and without 'shock vto the liquid the speed which `it has attained, so that it may arrive at the upper por-l ftion of the apparatus at a pressure at .least equal to that of the boiler without possessing any. notable speed, and .consequently without loss of eis tiva. p

Above the expanded mouth-piece E, or at any other convenient'part of the apparatus, is fitted a valve, F, the object of which is to prevent the escape of water from the lboiler when the apparatus is not at work. v To this valve is attached the pipe G, which conducts the feed-water to the boiler. The delivery and the suitable proportion of water to be injected `in relation to thel power of the steam-jet and 4 to the smallest diameter of the double mouthpiece E is adjusted or regulated by means of the Aregulating-screw operated by the handle lower endof the chimney c, andithereby enlargiu g or contracting the annular jet of water.

The regulation may be made automatically -orby the apparatus itself. For this purpose the nozzle is made tobe movable-upon guides and freel to slide within a box, and the steam-pressi;

ure, acting uponlthis apparatus, will cause a counteraetiug-spring to. be more or less compressed, such spring being adjusted to suit a d the size of the-"annular jet' of water at the ntrauce of the chimney. The jet of steam i regulated or stopped at pleasure by means of a conical plug-valve, c,- tixed to a screw-threaded shaft,

andarrau ged in a centrall or axial position in relation to the steam-jet pipe B. This valve is operated by turning the crank H in the drawing represents the ovcriiowpipe. Openings or windows K may be forlnedl 4in the outer casefor facilitating theexaminashould be too high, which cannot always be avoided, to condense the entire quant-ity of the eieet. of'which'is 'to increase-ordirnin-Av ish the distance betweenthe nozzle B and the steamwissuing `from the nozzle, it would be requisite to divide the actuating steam-jet into' two partsthe first portion, acting as above described, drawing up the water and imparting to it only a fraction of the necessary speed,

'-"andthe' second portion, arriving by another piepe,'and having its annular sectional form properly regulated, would impart tothe vein or jet a fresh impulse in the diverging mouthpiece -to any' point where the-ejectedwater would still. possess a'portion of the pressure 'of the boiler. Now, with this portion of pressure above the pressure of the atmosphere, the water could condense the fresh amount of steam, which would then no longer act, except Iwith the difference of the total pressure already acquired, and would thus be introduced 'into the boiler under the most favorable conditions.

This principle may be modiiied and worked out in various ways. In' all cases the-water may also be made to flow in the center, and the steam surrounding itfor the first impulse,

and vice versa, but taking care always to be provided with an adjusting arrangement for regulating the various sections of jets, and for acting also as a stopcock. This apparatus may also be iixed in any convenient position, whether horizontal, vertical, or oblique. rlhe improved feed-injector may also be employed in feeding boilers in which other liquids than water are evaporated, such as ether, sulphuret of carbon-te It is evident from the foregoing that lmany modifications oil this instrument may be made, and that the same may be used for various purposes other than that herein described, so that I do not restrict my invention' to the particular form or to the particular purpose herein described' but What claim as new, and desire to secure by Letters Patent, is-

l. The method of supplying vessels under pressure with any non-elastic iluid by the direct action of steam or other gaseous uid, also under piessure, when this fluid is 'brought into contact with and enters the aforesaid vessel along with thc nonelastic uid, to which it has first given the necessary force to overcome the resis tance, substantiallyas described.

2. The general construction, arrangement, and combiimtion of apparatus for forcing water or other liquids by the direct action of ajet or jets vof steam or v'other gaseous uid, suhstantially as hereinbefore described.

j In testimony whereofl have signed my name to this specification before two subscribing witnesses.

H. GLFFARD.

Witnesses:

GEO. HU'r'roN, EMILE BARRAULT 33 Boulevard sa. Mama

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