DE262028C

DE262028C -

Info

Publication number: DE262028C
Application number: DENDAT262028D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

V*-262028 -KLASSE 42 e. GRUPPE V * -262028 - CLASS 42 e. GROUP

STEINLE & HÄRTUNG in QUEDLINBURG.STEINLE & HÄRTUNG in QUEDLINBURG.

Dampfmesser. Patentiert im Deutschen Reiche vom 19. Januar 1913 ab.Steam meter. Patented in the German Empire on January 19, 1913.

Die älteren Dampfmesser betätigen ihre Anzeigevorrichtung durch die Bewegung einer im Dampfstrom sitzenden belasteten Scheibe. Diese Scheibe gibt in ihren verschiedenen Stellungen dem Dampf einen verschiedenen Durchströmquerschnitt frei und hält in diesem Querschnitt den Dampf auf einer der Belastung der Scheibe entsprechenden Geschwindigkeit. Um ein Tanzen der Scheibe,The older steam knives operate their display device by moving a loaded disc sitting in the steam stream. This disc gives in its different Positions the steam free a different flow cross-section and hold in this Cross-section of the steam at a speed corresponding to the load on the disk. To dance the disc

ίο welches bei starken oder periodischen Schwankungen der Dampf entnahme eintritt und ein Ablesen an der Anzeigevorrichtung unmöglich macht, zu verhindern, muß eine Dämpfung der Scheibe angeordnet werden.ίο which occurs in the event of strong or periodic fluctuations in steam extraction and making reading on the display device impossible to prevent, one must Damping of the disc can be arranged.

Diese Dämpfung hat aber einen Nachteil. Die Scheibe kommt trotz der Dämpfung schnell in die Stellungen größerer Eröffnungen, weil ein durch stärkere Dampfentnahme entstehender Druckabfall sofort überlegene Drücke auf die Scheibe in der Öffnungsrichtung auslöst. Bei plötzlicher Verminderung der Dampfentnahme steht für die Rückwärtsbewegung der Scheibe nur die Belastung der Klappe zur Verfügung, die gegen die Dämpfung nur ein langsames Schließen ermöglicht. So kommt es, daß diese Dampfmesser bei starken oder schnellen Schwankungen der Dampfentnahme zu hohe Werte anzeigen. ■However, this damping has a disadvantage. The disc comes despite the damping quickly into the positions of larger openings, because one created by stronger steam extraction Pressure drop immediately triggers superior pressures on the disc in the opening direction. In the event of a sudden reduction in steam extraction, only the load on the flap is available for the backward movement of the disc Available that only allows slow closing against the damping. So come it is that these steam meters in the event of strong or rapid fluctuations in the steam extraction show values that are too high. ■

Man hat sie aus diesem Grunde dergestalt abgeändert, daß man die Bewegung der erwähnten Scheibe nicht mehr zur Anzeige benutzte, vielmehr den Strömungsdruck in dem durch sie freigegebenen Querschnitt auf eine zweite bewegliche Fläche wirken ließ. Für diese zweite Fläche sind die Verhältnisse für Vor- und Rückwärtsbewegung ganz gleich.For this reason it has been modified in such a way that the movement of the above-mentioned Disc no longer used for display, rather the flow pressure in the cross-section released by it on a let the second movable surface work. For this second area the ratios are for Forward and backward movements are the same.

Macht man die erste (primäre) Scheibe, ohne ihre Bewegung zu dämpfen, möglichst leicht, damit sie sich schnell und sicher einstellt, so kann die Bewegung der vom Strömungsdruck getroffenen sekundären Fläche gedämpft werden ; sie wird dann eine der durchschnittlichen Dampfmenge entsprechende Stellung einnehmen.If you make the first (primary) disc as light as possible without dampening its movement, so that it adjusts itself quickly and reliably, the movement of the flow pressure secondary surface hit are dampened; she then becomes one of the average Take the appropriate position for the amount of steam.

Die vorliegende Erfindung bezweckt nun eine Verbesserung der nach diesem Prinzip arbeitenden, bereits bekannten Dampfmesser. Letztere verwenden eine Anordnung der beiden Flächen, welche eine Anzahl von Gelenken im Dampfraum bedingt. Zudem ist es nicht möglich, den Strömungsdruck der ,gesamten durchfließenden Dampfmenge für die Zeiger-, Schreib- oder Zählwerkbewegung auszunutzen. Das Wesentliche der neuen Anordnung beruht darin, daß die sekundäre Fläche aus den Schaufeln eines zentrisch zu der ringförmigen, von der primären Scheibe freigegebenen Spaltöffnung angeordneten Turbinenrades besteht. The present invention now aims to improve according to this principle working, already known steam meter. The latter use an arrangement of the two Areas that require a number of joints in the vapor space. Besides, it is not possible to determine the flow pressure of the total amount of steam flowing through for the pointer, To take advantage of writing or counter movement. The essence of the new arrangement is based in that the secondary surface from the blades of a centric to the annular, from the primary disc released gap opening arranged turbine wheel.

In Fig. ι ist eine Ausführungsform im Schnitt dargestellt. Der Dampf tritt in der Pfeilrichtung in das Gehäuse 1, strömt zunächst zwischen eine Anzahl radial gestellter Leitschaufeln 2, 2, die eine Wirbelbildung verhüten, gegen die primäre Scheibe 3 und sucht diese anzuheben. Die Belastung der primären Scheibe 3 wird gebildet durch ihr möglichst gering gehaltenes Eigengewicht, durch den auf den Querschnitt des Kolbens- 4 wirkenden Dampfdruck und durch zwei Federn 5. Letztere wirken nicht unmittelbar auf die Scheibe 3, sondern unter Zwischenschaltung eines Kniehebelwerkes, dergestalt, daß die Spannungs-In Fig. Ι is an embodiment in Section shown. The steam enters the housing 1 in the direction of the arrow and flows first between a number of radially positioned guide vanes 2, 2, which prevent vortex formation, against the primary disc 3 and seeks to lift it. The burden of the primary Disk 3 is formed by its own weight, which is kept as low as possible, by the on the cross-section of the piston 4 acting vapor pressure and by two springs 5. The latter do not act directly on the disc 3, but with the interposition of a toggle mechanism, in such a way that the tension

Claims

increase in feathers by decreasing Lever arms is balanced, so the springs like a weight load, but without the Disadvantage of their mass. The cross section of the piston 4 is calculated so that he in a known way the influences of the different at different vapor pressures compensates for the specific weight of the steam.

The disc 3 releases a cylindrical gap opening 6, the height of which depends on the flow rate is dependent. The gap opening lets the steam against the blades 7 of a turbine wheel 8 flow, the rotation of which is transmitted through the shaft 9 to the outside. Depending on the setting of the washer 3 Depending on the height of the gap opening, the turbine wheel is acted upon and experienced differently thereby a twisting moment which the spring 10 counteracts. So it will the turbine wheel is not set in continuous rotation, but. it only experiences a twist until the spring 10 equilibrates the twisting moments of the flow pressure holds. The rotation of the turbine wheel is fixed by the one on the shaft 9 Pointer 11 can be seen, the over a scale not shown in the drawing Steam consumption can be read in the unit of time. By the wing cataract 12 become any vibrations occurring in the rotary movement are dampened. With this arrangement, there are no joints in the steam. It allows a sufficiently large number of blades in the turbine wheel, the rotating one To make the moment of the flow pressure as large as the "display mechanism" requires.

Fig. 2 shows a modification in which the primary disc with the secondary surface

(i.e. here with the turbine blades 7) is rigidly connected. The turbine blades 7 are attached directly to the disc 3. If this disk moves in the axial direction, so the gap opening 6 changes, and the blades hit by the flow practice each time Depending on the height of the gap, a torque is exerted on the whole system, which the spring 10 keeping your balance. A crosshead 13 with roller guide and support ball bearing enables displacement in the axial direction without influencing the spring 10 and the pointer 11, while a rotation by the axis is immediately transferred to the pen and pointer. The construction elements are otherwise the same as that of FIG. 1.

The technical effect of the arrangement according to FIG. 2 is first of all a simplification compared to Fig. 1. The piston 4 is used as a shaft of the turbine wheel and needs so only a seal to the outside. But it will also be the union of rotating and ■ axial movement to reduce the friction of the piston 4 in the most favorable manner act.

A continuous rotation of the turbine wheel is necessary for the construction of a steam meter in question. Against the resistance of an eddy current brake of a rotating fluid cataract or the like, the turbine wheel will adopt a number of revolutions corresponding to the torque of the flow pressure. The number which circulates within a certain period of time, registered by a counter a measure of the amount of steam that has flowed through during this time, the respective speed of rotation of the turbine wheel is a measure of the amount of steam in the unit of time.

The device can also be used to measure the quantity of other gaseous media, air, etc., as well as for liquids.

Godfather τ-An Spruch ει. Steam meter, in which a primary movable disk keeps the steam in a gap opening at the same speed and one under the action of the in the secondary movable surface standing at the gap opening at the prevailing flow pressure actuates the display device, characterized in that the secondary go moving surface from the blades of a centrically to the annular gap opening arranged turbine wheel consists.

2. Embodiment according to claim 1 and Fig. I, characterized in that the flow pressure in the gap opening the turbine wheel against the force of a Twisted spring.

3, embodiment according to claim 1 and 2 and Fig. 2, characterized in that that the primary disk is rigidly connected to the turbine blades.

For this purpose ι sheet of drawings.