DE96954C

DE96954C -

Info

Publication number: DE96954C
Application number: DENDAT96954D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

KLASSE 59: Pumpen.CLASS 59: Pumps.

BURCHARD THOENS in NEW-ORLEANS. Ausgleichventil für Flüssigkeitspumpen. BURCHARD THOENS in NEW-ORLEANS. Balancing valve for liquid pumps.

Patentirt im Deutschen Reiche vom 14. September 1897 ab.Patented in the German Empire on September 14, 1897.

Gegenstand vorliegender Erfindung bezieht sich auf ein Aüsgleichventil für Pumpen und bezweckt, das Schlagen und Hämmern,, das durch Ansammlungen von Gasen, Luft oder Dämpfen in der Pumpenkammer unterhalb des Druckventiles oder der Druckventile verursacht wird, zu beheben und eine gleichmäfsige Wirkung der Pumpe bei voller Leistung herbeizuführen. The present invention relates to an equalizing valve for pumps and The purpose of hitting and hammering, caused by the accumulation of gases, or air Vapors caused in the pump chamber below the pressure valve or pressure valves will be to fix and bring about a uniform effect of the pump at full power.

Die Erfindung bezieht sich nur auf solche Pumpen, welche nicht zu heben brauchen und bei denen die Flüssigkeit in die Pumpe durch ihre Schwere einfliefst,. beispielsweise Pumpen, um sich verflüchtigende Flüssigkeiten zu pumpen, Ammoniakpumpen für Absorptionseismaschinen, Kesselspeisepumpen, welche sehr heifses Wasser zu pumpen haben, Pumpen zur Förderung aus einer Vacuumkammer, z. B. zum Pumpen condensirten Wassers aus Oberflächencondensatoren oder von Süfswasser und Syrup von Scheidepfannen etc.The invention relates only to pumps that do not need to lift and in which the liquid flows into the pump due to its gravity. for example pumps, to pump volatile liquids, ammonia pumps for absorption ice machines, Boiler feed pumps, which have to pump very hot water, pumps for conveying from a vacuum chamber, e.g. B. for pumping condensed water from surface condensers or of fresh water and syrup from separating pans etc.

In solchen Pumpen wird nach vorliegender Erfindung eine selbsttätige, durch Ventile controlirte Verbindung zwischen dem höchsten Theil der Pumpe unterhalb des oder der Druckventile und dem höchsten Punkt des Gefäfses, aus welchem die Pumpe saugt, hergestellt und die Ausgleichventile so angeordnet, dafs diese Verbindung stets auf der Saugseite der Pumpe während des Hubes des Pumpenkolbens hergestellt bleibt und gleichzeitig selbstthätig auf der Druckseite der Pumpe abgeschlossen ist, wodurch der Druck in der Pumpenkammer und dem Behälter so ausgeglichen wird, dafs die Flüssigkeit die Pumpe vollständig anfüllen kann und kein Schlagen infolge Ansammeins von Gasen, Dampf oder Luft in den Pumpenkammern eintritt. Solches Gas, Dampf oder Luft wird bei den gewöhnlichen Pumpen während des Saughubes frei und verhindert, in den oberen Theilen der Pumpenkammer angesammelt, dafs die gepumpte Flüssigkeit eintritt und die Pumpe vollständig ausfüllt. Dadurch wird eben die Leistung der Pumpe vermindert, der Pumpenkolben mufs mehr Hube ausführen und es tritt ein Hämmern und Schlagen in der Pumpe ein, dafs dieselbe bald zerstört wird. Diese Nachtheile werden durch die vorliegende Erfindung vermieden.In such pumps, according to the present invention, an automatic, controlled by valves Connection between the highest part of the pump below the or the Pressure valves and the highest point of the vessel from which the pump sucks and the equalizing valves are arranged in such a way that this connection is always on the suction side the pump remains established during the stroke of the pump piston and at the same time it is automatic on the pressure side of the pump is completed, whereby the pressure in the pump chamber and the container is so equalized so that the liquid can fill the pump completely and no beating occurs as a result of the accumulation of gases, steam or air in the pump chambers. Such With normal pumps, gas, steam or air are released during the suction stroke and, accumulated in the upper parts of the pump chamber, prevents the pumped Liquid enters and completely fills the pump. This reduces the performance of the pump, the pump piston must make more stroke, and there is a hammering and striking in the pump that it is soon destroyed. These Disadvantages are avoided by the present invention.

In beiliegender Zeichnung zeigtIn the accompanying drawing shows

Fig. ι das Ausgleichventil für Pumpen im Längsschnitt.Fig. Ι the equalizing valve for pumps in longitudinal section.

Fig. 2 zeigt eine Pumpe im Schnitt und veranschaulicht das Ausgleichventil und seine Rohrverbindung mit der Pumpe und dem Behälter, aus dem die Pumpe absaugt.Fig. 2 shows a pump in section and illustrates the equalizing valve and its Pipe connection with the pump and the container from which the pump sucks.

Fig. 3 zeigt ' im Schnitt eine Ausführung, bei der das Ausgleichventil und die Ventilgänge, in einem Pumpendeckel angeordnet sind.Fig. 3 shows' in section an embodiment in which the compensating valve and the valve passages, are arranged in a pump cover.

In den Zeichnungen Fig. 1 bezeichnet 5 ein Ventilgehäuse, welches die Wände 6 und 7 besitzt, durch die das Ventilgehäuse in eine obere Einlafskammer 8 und zwei seitliche Auslafskammern 9 und 10 getheilt wird. Die Einlafsventilkammer 8 steht oben durch ein Rohr 11 mit dem höchsten Punkte des Behälters 12 (s. Fig. 2) in Verbindung, aus welchem die Pumpe die zu pumpende Flüssigkeit entnimmt. Diese Einlafskammer 8 kann mit den Auslafskammen 9 und 10 durch die Oeffnungen 14 in Verbindung treten, welche gegenüberliegendIn the drawings, Fig. 1, 5 denotes a valve housing, which the walls 6 and 7 has, through which the valve housing into an upper inlet chamber 8 and two lateral outlet chambers 9 and 10 is divided. The inlet valve chamber 8 stands up through a pipe 11 with the highest point of the container 12 (see Fig. 2) in connection from which the Pump removes the liquid to be pumped. This inlet chamber 8 can with the Auslafskammen 9 and 10 connect through the openings 14, which are opposite

Claims

are arranged in the walls 6 and are alternately closed by the cone valves 15 and 16. These cone valves 15 and 16 are connected to the web 17 in such a way that, when one is open, the other is closed, thus preventing the liquid from passing through the discharge chamber on this side of the valve housing. The outlet valve chambers 9 and 10 are connected by pipes 18 and 19 to the pump chambers 20 and 21 at the highest point thereof and below the pressure valves 22 and 23 which alternately regulate the outflow of the liquid from the pressure chamber 24. The pressure chamber 24 has an outlet opening 25 (see Fig. 2). A pipe 26 connects the lower part of the container 12 to the inlet chamber 27, which is provided with valves 28 and 29 for alternating the inflow and outflow of the liquid from the chamber 27 to the chambers 20 and 21. In the lower part of the pump, between the chambers 20 and 21, lies the piston 30, which works in these two chambers and is driven in some way. The valve web 17 is of such a length that when one of the valves 15 or 16 is closed on its seat, the other valve is open and a connection between the upper part of the container 12 and the pump chambers 20 and 21 is alternately established that the container 12 is always connected to the suction side of the pump, but is closed off from the pressure side of the pump. The pump chambers 20 and 21 are arranged here in such a way that they alternately suck in and convey the liquid. When the piston 13 pushes pressure, one cone valve 15 or 16 is closed and the other opened, so that a connection is established between the suction side of the pump and the upper part of the container 12 and the liquid to be pumped completely fills the pump chambers. Due to the automatic action of the valves 15 and 16, the pressure in the container 12 and the pump 13 is equalized in such a way that the pump chambers fill up quickly, without steam, air or gases being able to accumulate to an increased extent and cause hammering and bumping . With some pumps these phenomena occur particularly violently. when evaporating liquids or hot water are to be pumped, and a break often occurs in the pipe connections or in the pump parts. The use of this equalizing valve offers particular advantages when used for ammonia pumps and for absorption ice machines. Currently, a stronger solution than pCt. cannot be easily pumped in summer, while a 45 and higher percent solution can very well be pumped when using the equalizing valve. As a result, only half of the liquid needs to be reheated, saving almost half of the fuel. Pa te ν τ claims:

1. Compensating valve for liquid pumps that work without suction, consisting of from a valve housing 5 with the chambers 8, 9 and 10, of which 8 against 9 and 10 by the valves 15 and 16 seated on the common valve web alternately is completed and with the highest point of the liquid container 12 is in communication by pipeline 11, the chambers 9 and 10 by pipes 18 and 19 communicate with the suction chambers 20 and 21 of the pump, so that at the Move the piston the suction side of the pump cylinder always through the open Valve 15 or 16 communicates with the upper end of the container and thereby fills up quickly and completely with liquid.

2. An embodiment of the under 1. marked Device in which the equalizing valve is placed in the pump cover and the pipe connections 18, 19 of the same with the suction chamber of the pump are designed as channels in the cover.

For this purpose ί sheet of drawings.