CH97445A - Dry gas meter. - Google Patents
Dry gas meter.Info
- Publication number
- CH97445A CH97445A CH97445DA CH97445A CH 97445 A CH97445 A CH 97445A CH 97445D A CH97445D A CH 97445DA CH 97445 A CH97445 A CH 97445A
- Authority
- CH
- Switzerland
- Prior art keywords
- membrane
- measuring
- gas meter
- boxes
- box
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000010985 leather Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
- G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
- G01F3/20—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows
- G01F3/22—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases
- G01F3/226—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases characterised by features of meter body or housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
- G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
- G01F3/20—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows
- G01F3/22—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases
- G01F3/225—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases characterised by constructional features of membranes or by means for improving proper functioning of membranes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Measuring Volume Flow (AREA)
Description
Trockener Gasmesser. Gegenstand der Erfindung ist ein trockener Gasmesser mit geteilten Messkästen und darin angeordneten, um eine Achse hin- und her schwingenden Membranen, bei welchem in jedem Messkasten die zur Übertragung der Membranbewegung auf den Steuermechanis mus dienende Fahnenachse in die Teilebene des Messkastens und aus dessen für die Schwingung der Membran in Betracht kom menden Hohlraum heraus verlegt ist und die Kastenwände nach innen der natürlichen Bie gung der Membran entsprechend gerundet sind, zum Zwecke, die toten Räume in den Messkästen tunlichst zu verringern.
Die beiliegende Zeichnung veranschaulicht ein Ausführungsbeispiel des Erfindungsgegen standes.
Fig. 1 ist eine Stirnansicht, teilweise ein Schnitt desselben; Fig. 2 ist ein senkrechter Querschnitt nach Linie I-II von Fig. 1; Fig. 3 ist ein wagrechter Schnitt nach Linie III-IV von Fig. 1; Fig. 4 veranschaulicht eine Einzelheit im Schnitt nach Linie V-VI vom Fig. 1.
Im Messgehäuse 4, dessen äussere Form von der. üblichen durch die kuppelförmige Rundung seiner Decke abweicht, sind die beiden Messkästen B, C untergebracht, die nach einer Querebene hälftig geteilt sind und in an sich bekannter Weise die hin- und her schwingende Ledermembran a enthalten, welche mit ihren Rändern zwischen die Rän der der Kastenhälften eingeklemmt ist. In ihrem Mittelteil sind die Ledermembranen a durch Blechscheiben b versteift, an denen die sog.
Fahnen c angelenkt sind, welche die Schwingbewegung der Membranen auf je eine zur Bewegung des Steuermechanisxrius die nende Fahnenachse d übertragen. Während nun bisher diese Fahnenachse im Hohlraum des Kastens nach der Seite hin angeordnet ist und auf diese Weise durch eigene Raum beanspruchung sowohl, als auch durch un gleichmässige Faltenlegung der Ledermem bran notwendigerweise zur Bildung.
von toten Räumen Anlass gibt, ist sie bei der vorlie genden Ausführungsform in die Teilebene des Messkastens und aus dessen für die Schwingung der Ledermembran in Betracht kommenden Hohlraum heraus verlegt, wie dies aus Fig. 3 deutlich zu ersehen ist, und dabei bis auf die Stelle, wo die Fahne c mit ihr verbunden ist, von einer Schutzhülse f umgeben, welche verhindern soll, dass die über die Fahnenachse hinweggehende Leder membran durch Reibung beschädigt werde.
Durch diese Anordnung der Fahnenachsen d kommen die Ledermembranen .der Messkästen sowohl in der einen wie in der andern End stellung in genau gleicher Weise zur Anlage an die Seitenwände der Messkästen, und die Volumina der Messkästen werden dadurch in folge der Ausscheidung von toten Räumen in beiden Fällen genau gleich.
Eine weitere Ver minderung dertotenRäumeistdadurcherreicht, dassdieKastenwändenach innen der natürlichen Biegung der Alembran entsprechend gerundet sind, so dass die sonst üblichen scharfen Winkel, wie solcher in Fig. 4 durch strich punktierte Linien angedeutet ist, in Wegfall kommen. Die Verminderung der toten Räume bewirkt, dass der Gasmesser bei verschieden artigen, auch bei Überbelastungen gleich gut läuft und in engen Fehlergrenzen anzeigt.
Um ein Festsaugen der Ledermembranen an den Kastenseitenwänden zu verhüten, sind in diese Wände kreuz und quer kleine Ril len g eingeprägt, jedoch so kleine, dass die Membranen sich nicht hineinsaugen können.
Statt, wie üblich, den Ein- und Auslass für das Gas an den Seiten des Gasmesser gehäuses vorspringend anzuordnen, ist hier an der Decke des Gehäuses, deren kuppel- förmige Rundung ihr eine gewisse Verstei fung verleiht, ein T-förmiger Hohlkörper h angebracht, in dem der Ein- und Auslass für das Gas durch eine Scheidewand i, die auch die mit dem Steuermechanismus verbundene Gaskammer k unterteilt, voneinander getrennt sind.
Die Anschlussstutzen des Hohlkörpers h sind wagrecht gestellt, und durch Einschal tung mehr oder weniger langer Bohrnippel u kann die Anschlussweite in beliebigen Grenzen verändert werden, so dass der Gasmesser an jede Rohrleitung anschliessbar ist.
Am obern Ende der Messkästen D, C ist die übliche Schiebesteuerung D angeordnet. Von derselben führen zu den Messkamrnern die Gasein- und Ausgangsrohre o. Das Schiebergehäuse s mit dem Rost r ist mit- telst einer einzigen Schraube p (Fig. 2) und eines Quersteges q in dichter Verbindung mit jenen Rohren o gehalten.
Dry gas meter. The subject of the invention is a dry gas meter with divided measuring boxes and arranged therein, about an axis oscillating diaphragms, in which in each measuring box the flag axis serving to transmit the membrane movement to the control mechanism in the partial plane of the measuring box and from its for the Vibration of the membrane into consideration coming cavity is moved out and the box walls are rounded inwards to the natural bending of the membrane accordingly, for the purpose of reducing the dead spaces in the measuring boxes as much as possible.
The accompanying drawing illustrates an embodiment of the subject matter of the invention.
Fig. 1 is an end view, partly in section, of the same; Fig. 2 is a vertical cross section taken along line I-II of Fig. 1; Fig. 3 is a horizontal section on the line III-IV of Fig. 1; FIG. 4 illustrates a detail in section along line V-VI from FIG. 1.
In the measuring housing 4, the outer shape of the. usual differs by the dome-shaped rounding of its ceiling, the two measuring boxes B, C are housed, which are divided in half according to a transverse plane and contain in a known manner the leather membrane a swinging back and forth, which with its edges between the edges of the Box halves is clamped. In their middle part, the leather membranes a are stiffened by sheet metal discs b, on which the so-called.
Flags c are articulated, which transmit the oscillating movement of the membranes to one for each movement of the control mechanism, the flag axis d. While so far this flag axis is arranged in the cavity of the box to the side and in this way claims both by its own space, as well as by uneven folding of the Ledermem bran necessary for formation.
of dead spaces gives rise to, it is in the present embodiment in the partial plane of the measuring box and out of its cavity that is considered for the vibration of the leather membrane, as can be clearly seen from Fig. 3, and up to the point , where the flag c is connected to it, surrounded by a protective sleeve f, which is intended to prevent the leather membrane extending over the flag axis from being damaged by friction.
Due to this arrangement of the flag axes d, the leather membranes of the measuring boxes come to rest in exactly the same way on the side walls of the measuring boxes in both one and the other end position, and the volumes of the measuring boxes are thereby due to the elimination of dead spaces in both Cases exactly the same.
A further reduction in the dead spaces is achieved by the fact that the box walls are rounded inwards according to the natural curvature of the membrane, so that the otherwise usual sharp angles, such as those indicated in Fig. 4 by dashed-dotted lines, are eliminated. The reduction of the dead spaces means that the gas meter runs equally well with different types, even with overloads, and displays within narrow error limits.
In order to prevent the leather membranes from sticking to the side walls of the box, small grooves are criss-crossed in these walls, but so small that the membranes cannot suck themselves into them.
Instead of arranging the inlet and outlet for the gas protruding on the sides of the gas meter housing, as usual, a T-shaped hollow body h is attached to the ceiling of the housing, the dome-shaped rounding of which gives it a certain stiffening, in which the inlet and outlet for the gas are separated from one another by a partition i, which also divides the gas chamber k connected to the control mechanism.
The connecting pieces of the hollow body h are placed horizontally, and by switching on more or less long drilling nipples u, the connection width can be changed within any limits, so that the gas meter can be connected to any pipeline.
The usual slide control D is arranged at the upper end of the measuring boxes D, C. The gas inlet and outlet pipes o lead from this to the measuring chambers. The valve housing s with the grate r is held in tight connection with those pipes o by means of a single screw p (FIG. 2) and a crosspiece q.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH97445T | 1921-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH97445A true CH97445A (en) | 1923-01-16 |
Family
ID=4355198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH97445D CH97445A (en) | 1921-07-07 | 1921-07-07 | Dry gas meter. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH97445A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE850238C (en) * | 1951-01-25 | 1952-09-22 | Hubert Bauer | Measuring chamber for fuel measuring device |
| DE972970C (en) * | 1953-12-12 | 1959-11-05 | Kromschroeder Ag G | Pipe connection arrangement, especially for gas meters |
| DE973867C (en) * | 1954-01-15 | 1960-07-07 | Kromschroeder Ag G | Pipeline distributor |
-
1921
- 1921-07-07 CH CH97445D patent/CH97445A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE850238C (en) * | 1951-01-25 | 1952-09-22 | Hubert Bauer | Measuring chamber for fuel measuring device |
| DE972970C (en) * | 1953-12-12 | 1959-11-05 | Kromschroeder Ag G | Pipe connection arrangement, especially for gas meters |
| DE973867C (en) * | 1954-01-15 | 1960-07-07 | Kromschroeder Ag G | Pipeline distributor |
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