DE790C

DE790C - Automatic boiler feed pump for feed water that is heated by outgoing vapors

Info

Publication number: DE790C
Application number: DE000000000790DA
Authority: DE
Original assignee: H Chiazzarl De Torres
Current assignee: H Chiazzarl De Torres
Priority date: 1877-09-20
Filing date: 1877-09-20
Anticipated expiration: 1897-09-21

Description

1877.1877.

H. CHIAZZARI DE TORRES in TURIN.H. CHIAZZARI DE TORRES in TURIN.

Selbstthätig wirkende Kesselspeisepumpe für Speisewasser, welches durch abgehendenAutomatic boiler feed pump for feed water, which is supplied by outgoing

Dampf erhitzt ist.Steam is heated.

Patentirt im Deutschen Reiche vom 21. September 1877 ab. Längste Dauer: 13. October 1891.Patented in the German Empire on September 21, 1877. Longest duration: October 13, 1891.

Diese Pumpe ist bestimmt ohne Unterbrechung zu arbeiten und besteht in einem kalibrirten Pumpenkörper A A' (Fig. 1), in dessen Innerem sich ein Kolben .S bewegt, der durch eine dicke Stange G dergestalt geführt wird, dafs sich auf der einen Seite ein viel gröfserer Raum, als auf der anderen bildet.This pump is designed to work without interruption and consists of a calibrated pump body AA '(Fig. 1), inside of which a piston S moves, which is guided by a thick rod G in such a way that there is a lot on one side larger space than on the other.

Der Pumpenkörper steht in Verbindung:
ι. mit dem Wasserreservoir durch das Rohr T und das Kugelventil t; The pump body is connected to:
ι. with the water reservoir through the pipe T and the ball valve t;

2. mit dem Kessel durch das Rohr C und das Kugelventil c\ 2. with the boiler through pipe C and the ball valve c \

3. mit dem Cylinderablafsrohr mittelst der Lei-. tung V und des Condensators B, welcher sich bis zum Kugelventil b erstreckt.3. with the cylinder exhaust pipe by means of the conduit. device V and the condenser B, which extends to the ball valve b .

Die beiden Abtheilungen communiciren aufserdem die eine mit der anderen vermittelst der zweitheiligen Leitung D, die mit Kugelventil d (Fig. i, 5 und 6) versehen ist und dem Condensator B. The two divisions also communicate one with the other by means of the two-part line D, which is provided with a ball valve d (Figs. 1, 5 and 6) and the condenser B.

In seinem Laufe nach vorn von A nach A \ läfst der Kolben eine Leere hinter sich, welche der atmosphärische Druck mit Wasser aus dem Reservoir füllt, indem das Ventil d geschlossen und das andere, /, geöffnet wird. In seinem Laufe nach hinten von A^l nach A treibt der Kolben, nachdem das Ventil d geöffnet und das andere, t, geschlossen ist, das Wasser der kleinen Abtheilung so, dafs es nach dem Condensator B die kleinen Löcher der Platte P passiren mufs um von da, indem es das Ventil b hebt, in die grofse Abtheilung der Pumpe, zu gelangen. Aber da das Wasser nicht genügt, sie gänzlich zu füllen, so wird sich ein leerer Raum in dem Innern der besagten Abtheilung bilden und den Abgängsdampf anziehen, welcher mit dem Wasser, welches durch die Platte P hindurchströmt, in Berührung kommt, condensirt, und mit demselben in die grofse Abtheilung hinströmt.In its course forwards from A to A \ the piston leaves a void behind it, which the atmospheric pressure fills with water from the reservoir, in that valve d is closed and the other, /, is opened. In its course rearward from A ^l to A of the piston drives, after the valve is opened d and the other, t, is closed, the water of small division so, that it is after the condenser B, the small holes of the plate P pass through PUFA to from there, by lifting valve b , to pass into the large section of the pump. But since the water is not sufficient to fill it completely, an empty space will form inside the said compartment and attract the waste steam which comes into contact with the water flowing through the plate P , condenses, and with it flows into the large division.

Während des Kolbenlaufes nach vorn wird, sobald das Ventil C sich öffnet und die Ventile i/und b sich schliefsen, das heifse Wasser sich in den Kessel ergiefsen, vermittelst des Luftkessels H, während die auf der anderen Seite sich bildende Leere sich mit frischem Wasser füllt, welches auf seinem Wege nach hinten sich in der Folge erwärmt und so weiter.While the piston is moving forward, as soon as valve C opens and valves i / and b close, the hot water is poured into the kettle by means of the air kettle H, while the void forming on the other side is filled with fresh water which subsequently warms up on its way backwards, and so on.

Der Regulator R (Fig. 1, 2, 7) hat mit seinem Ventil r den Zweck, je nach Bedarf, den Querschnitt des Rohres T zu verringern und dadurch die Fassungsfähigkeit der Pumpe. Der Hahn R (Fig. 7) functionirt als Reserve-Regulator. Um den Dampf von dem Abblaserohr in die Leitung V zu leiten, mufs man an dieses Rohr das Verbindungsstück E (Fig. 7) einfügen, welches durch seine Form nicht allein hilft, den Dampf anzusaugen, sondern auch das mit Dampf gemischte AVasser aufzunehmen, indem es seine Vorstofsgeschwindigkeit beim. Punkt ee vermehrt.The regulator R (Fig. 1, 2, 7) with its valve r has the purpose of reducing the cross-section of the tube T as required and thereby reducing the capacity of the pump. The cock R (Fig. 7) functions as a reserve regulator. In order to conduct the steam from the blow-off pipe into the line V , the connection piece E (Fig. 7) must be inserted into this pipe, which by its shape not only helps to suck in the steam, but also to take in the water mixed with steam by it is at its feed rate. Point ee increased.

Der Kolben S wird durch die Zugstange M (Fig. i, 7) in Bewegung gesetzt, der man mit Hülfe eines Excenters oder einer Reihe von Hebeln (Fig. 7) Bewegung ertheilt. Die Zugstange M, mit rundem Kopf, kann sich nach allen Seiten drehen.The piston S is set in motion by the pull rod M (Fig. 1, 7), which is given movement with the aid of an eccentric or a series of levers (Fig. 7). The pull rod M, with a round head, can rotate in all directions.

Der Kreuzkopf N wird durch die cylindrische Verlängerung des Pumpenkörpers geführt und wird mit der Stange mittelst eines konischen Vorsteckers verbunden, der durch einen Schraubenbolzen K C (Fig. i, 3) gehalten wird. Die Kolbenstange ist mit einer gewöhnlichen Hanfliderung versehen, mit der besonderen Einrichtung, dafs zwischen die Liderung ein Ring/ gelegt ist, der mit einer Anzahl kleiner Löcher versehen ist, die mit dem fortwährend mit Wasser gefüllten Ventilraum d communiciren; derselbe dient für den Fall, dafs, wenn die Dichtung nicht genügend abschliefst, die durch die Pumpe erzeugte Leere fortwährend Wasser anstatt Luft ansaugt. Der Kolben 5 kann nach Art der »schwedischen« Kolben construirt oder aus zwei runden Gufsstücken gebildet sein (g, Fig. 1), dergestalt, dafs man stets das nöthige Anziehen vermittelst der Scheibe S bewirken kann, die an dem Hauptstücke mittelst Schraube befestigt ist, während die Schraube a, welche Links-Gewinde hat, die Scheibe am Lockerwerden verhindert. Ein einziges Gefäfs U, Fig. 1, 5, 7, genügt, um den Kopf m, den Kreuzkopf, die Gleitführungen und die Kolbenstange zu schmieren, da das OeI, welches am Fufs der Gleitung anlangt und durch die kleine Platte/ (Fig. i, 3, 5) angehalten wird, sich in der Höhlung q sammelt, wo es den Schmierring, der die Kolbenstange umgiebt, anfeuchtet. The cross head N is passed through the cylindrical extension of the pump body and is connected to the rod by means of a conical pin which is held by a screw bolt KC (Fig. 1, 3). The piston rod is provided with an ordinary Hanfliderung, with the special device, that is connected between the obturator a ring / placed, which is provided with a number of small holes with the communiciren continually filled with water, valve chamber d; the same is used in the event that, when the seal does not close sufficiently, the void created by the pump continually sucks in water instead of air. The piston 5 can be constructed in the manner of the "Swedish" pistons or formed from two round cast pieces (g, Fig. 1), in such a way that the necessary tightening can always be effected by means of the washer S , which is fastened to the main piece by means of a screw while the screw a, which is left-hand threaded, prevents the washer from loosening. A single vessel U, Fig. 1, 5, 7, is sufficient to lubricate the head m, the cross head, the slide guides and the piston rod, since the oil that reaches the foot of the slide and through the small plate / (Fig. i, 3, 5) is stopped, collects in the cavity q , where it wets the lubricating ring surrounding the piston rod.

Claims

The two filters, one at F for the Walser ... and the other, F ¹ , Fig. 7, for the steam, prevent impurities from getting into the interior of the pump; these fall into the chamber f, and can easily be removed by opening the screw / (Fig. 1, 2, 6). Any system can be adopted for oiling, or, what is better, the suction lubricating device (Fig. 1, 5, 7) can be used. In this apparatus there is the small cylindrical valve X which, as soon as the pump is at rest, is held in the position of the figure by a spiral spring, so that the oil cannot then go down from u to u '. But as soon as the pump is started and creates an air void in the pipe Q , the valve X tries to close the opening of the said pipe Q, yielding to the atmospheric pressure. In this position the channel h joins the holes u and u ^ and the oil drains off. The valve i of the connector / (Fig. 5) prevents the pressure from entering the pipe Q and the valve will consequently always remain open while the pump is operating.

One or more layers of cotton cloth, placed on the hole u , serve to filter the oil and regulate the outflow.

Small channels installed in the apparatus collect the oil droplets which seep through from the valve. As soon as the pump ceases to function and the pressure in the pipe Q is restored, the spring pushes the valve into its original position and the oil ceases to flow out.

The suction pipe T _1, instead of joining directly with the regulator R , pours the water into the injector J, from where the pipe branches off in the form of a double siphon in order to connect to the regulator R with its descending branch.

Another pipe V, a simple siphon, connects to the injector and through this pipe the outgoing vapor, which comes from the main line V , flows into the liquid by means of an ordinary cone. The tubes T and V communicate on the upper part of the lifter by means of a connecting piece O ₁ which is provided in its center with a conical valve which opens from top to bottom (Fig. 8).

With this arrangement, as soon as the engine is at rest, the water in the tender equilibrates with that in pipes T (ascending branch) and V (descending branch); but as soon as the regulator is opened, the waste steam enters the pipe V with force and the valve O closes. The void then formed by the pump piston causes suction in the descending branch T and the atmospheric pressure pushes the water into the pump body, while the pressure of the steam on the other side empties the longer branch of the pipe V; as the steam mixes with the mass of water, it partially warms it.

Whenever there is steam in the pipe V , the pump will work without interruption; but when the regulator is closed, the pipe V contains nothing more than air and the valve O opens, pulled down by its own weight; then the small section of the pump only sucks air through the drain pipe and the pump works empty; but whenever the regulator is opened, it will begin to function as before. It is clear that the present apparatus could be used with all kinds of pumps, and that it will suffice to give it proportions to heat the water which is sucked in by the pump to 75 °.

This pump injector will give the following results on the locomotive:

a) Increase in the strength of the machine by 25 pCt.

b) Economy of 25 pCt, both for water and for combustion.

c) Easier handling of the locomotive:
ι. because the feeding is automatic;

2. because no longer in the boiler while it is being fed. a reduction in pressure will occur;

3. Because the quantity of fuel is reduced by a quarter.

d) Reduction in the maintenance costs of the boiler:

ι. because the feeding is continuous and with boiling Water takes place;

2. because the incrustations inside the kettle are reduced by a quarter;

3. because, since the combustion takes place much more slowly, the stove and the boilers less likely to be attacked.

Patent claim: An automatic boiler feed pump to run by means of the same outgoing vapors to feed warm water into the boiler, in construction and Composition in the main and for the purposes as described.

For this purpose 2 sheets of drawings.