CH155503A - Diaphragm pressure gauge. - Google Patents
Diaphragm pressure gauge.Info
- Publication number
- CH155503A CH155503A CH155503DA CH155503A CH 155503 A CH155503 A CH 155503A CH 155503D A CH155503D A CH 155503DA CH 155503 A CH155503 A CH 155503A
- Authority
- CH
- Switzerland
- Prior art keywords
- pressure gauge
- membrane
- diaphragm
- diaphragm pressure
- grooves
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/08—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
- G01L7/082—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type construction or mounting of diaphragms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Description
Membranmanometer . Es werden vielfach Manometer benötigt, die derartig eingerichtet sind, dass sie Druck steigerungen aushalten, die ein mehrfaches der Skaleneinteilung betragen. Insbesondere kommen hier Manometer in Frage, welche eine verhältnismässig niedrige Skaleneinteilung, bis etwa 2-4 Atü. haben, und die dann im Betrieb Druckbelastungen bis zu 60 Atü. aushalten müssen, ohne dass ihre Anzeige genauigkeit darunter leidet.
Es werden dabei unter andern Membran- manoneter, bei denen sich zwischen der mit Rillen versehenen Membrane und der Gehäu sewand ein Schutzteller befindet verwendet. Es hat sich gezeigt, dass bei diesen bekann ten Membrarmanometern die Rillen der meist sehr dünnwandigen Membrane bei Überlastung durch die verhältnismässig hohe Flächenbe lastung an dem ebenen Schutzteller sich durchdrücken und bleibende Formänderungen erleiden, so dass diese Manometer bei Druck entlastung nicht mehr richtig anzeigen.
Gegenstand vorliegender Erfindung ist ein Membranmanometer der eingangs erwähnten Art, das den angeführten Nachteil nicht auf weist. Die Erfindung besteht darin, dass in diesem Teller Rillen vorgesehen sind, die den Rillen in der Membrane in Form und Grösse entsprechen.
Die Zeichnung zeigt ein Ausführungsbei spiel des Erfindungsgegenstandes im Schnitt. Mit a ist die Membrane bezeichnet. Zwi schen derselben und der Gehäusewand c be findet sich der mit der gleichen Prägestanze geprägte Schutzteller b, der aus stärkerem Blech besteht. An diesen legt sich die Mem brane a bei Erreichung der der Skaleneintei lung entsprechenden Durchbiegung an. Die Rillen des Schutztellers entsprechen den Ril len der.Membrane in Form und Grösse, da die gleiche Prägestanze verwendet wurde. Bei anliegender Membrane passt Rille genau auf Rille, und jede bleibende Formänderung der Manometer-Membran wird mit Sicherheit vermieden.
Diaphragm pressure gauge. There are often required pressure gauges which are set up in such a way that they can withstand pressure increases that are a multiple of the scale division. In particular, manometers come into question here, which have a relatively low scale graduation, up to about 2-4 atmospheres. have, and then in operation pressure loads of up to 60 Atü. have to endure without affecting their display accuracy.
Among other things, membrane manoneters with a protective plate between the grooved membrane and the housing wall are used. It has been shown that with these known diaphragm pressure gauges the grooves of the mostly very thin-walled diaphragm push through when overloaded due to the relatively high surface load on the flat protective plate and suffer permanent changes in shape, so that these pressure gauges no longer display correctly when the pressure is released.
The present invention relates to a diaphragm manometer of the type mentioned at the outset, which does not have the stated disadvantage. The invention consists in that grooves are provided in this plate which correspond in shape and size to the grooves in the membrane.
The drawing shows a Ausführungsbei game of the subject invention in section. The membrane is designated with a. Between the same and the housing wall c there is the protective plate b, which is embossed with the same stamping die and consists of thicker sheet metal. The membrane a rests against this when the deflection corresponding to the scale division is reached. The grooves of the protective plate correspond to the grooves of the membrane in shape and size, as the same die was used. When the membrane is in contact, groove fits exactly on groove, and any permanent change in shape of the pressure gauge membrane is definitely avoided.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH155503T | 1931-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH155503A true CH155503A (en) | 1932-06-30 |
Family
ID=4410011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH155503D CH155503A (en) | 1931-07-14 | 1931-07-14 | Diaphragm pressure gauge. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH155503A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE741798C (en) * | 1940-11-24 | 1943-11-17 | Heinrich Vitous | Device for measuring the mutual contact pressure of the rollers of machines for processing paints, chocolate, soap, etc. like |
DE1300706B (en) * | 1964-09-23 | 1969-08-07 | Manning Maxwell & Moore Inc | Separating template for an instrument that responds to pressure from a pressure medium |
-
1931
- 1931-07-14 CH CH155503D patent/CH155503A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE741798C (en) * | 1940-11-24 | 1943-11-17 | Heinrich Vitous | Device for measuring the mutual contact pressure of the rollers of machines for processing paints, chocolate, soap, etc. like |
DE1300706B (en) * | 1964-09-23 | 1969-08-07 | Manning Maxwell & Moore Inc | Separating template for an instrument that responds to pressure from a pressure medium |
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