DE347839C - Device for protecting instruments connected to gas lines, especially pressure gauges - Google Patents
Device for protecting instruments connected to gas lines, especially pressure gaugesInfo
- Publication number
- DE347839C DE347839C DENDAT347839D DE347839DD DE347839C DE 347839 C DE347839 C DE 347839C DE NDAT347839 D DENDAT347839 D DE NDAT347839D DE 347839D D DE347839D D DE 347839DD DE 347839 C DE347839 C DE 347839C
- Authority
- DE
- Germany
- Prior art keywords
- pressure gauges
- gas lines
- especially pressure
- instruments connected
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0627—Protection against aggressive medium in general
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Description
Einrichtung zum Schutz von an Gasleitungen angeschlossenen Instrumenten, besonders Druckmessern. An Gasleitungen angeschlossene Apparate, insbesondere Meßinstrumente, werden mit der Zeit von den in den Gasen enthaltenen, die Metalle angreifenden Stoffen zerstört. Da man indessen beispielsweise bei Meßinstrumenten auf die Herstellung der mit dem Gase in Berührung gelangenden Teile aus Metall nicht verzichten kann, so hat man den Nachteil der Zerstörung bis dahin, mit in. den Kauf genommen. Während es sonst üblich ist, Apparateteile, die vom Gas angegriffen werden, aus Porzellan herzustellen oder mit irgendeiner Schutzschicht zu versehen, kann man die Feinmeßgetriebe u. dgl. von Instrumenten in dieser Weise nicht vor der Zerstörung schützen. Infolgedessen ist man auf andere Wege angewiesen, um, die Instrumente nicht nur selbst auf lange Dauer zu erhalten sondern auch zu gleicher Zeit ihre gute Funktion zu gewährleisten.Device for the protection of instruments connected to gas pipes, especially pressure gauges. Apparatus connected to gas lines, in particular measuring instruments, over time from the substances that attack metals contained in the gases destroyed. Since, however, for example with measuring instruments on the production the metal parts that come into contact with the gas cannot be dispensed with, so one has taken the disadvantage of the destruction up to that point with in. the purchase. While it is usually the case that parts of the apparatus that are attacked by the gas are made of porcelain The precision measuring gears can be manufactured or provided with some kind of protective layer Do not protect and the like of instruments in this way from destruction. Consequently one is dependent on other ways to use the instruments not only for a long time To maintain their duration but also to guarantee their good function at the same time.
Gemäß der Erfindung ist zu diesem Zweck eine Einrichtung geschaffen, mit welcher in der Zuleitung zum Meßinstrument dauernd eine von. diesem weggerichtete Strömung eines neutralen Gases unterhalten wird.According to the invention, a device is created for this purpose, with which in the supply line to the measuring instrument one of. this turned away Flow of a neutral gas is maintained.
Auf der Zeichnung ist eine schematische Darstellung der neuen Einrichtung veranschaulicht. Es werde angenommen, daß an die Leitung a, welche irgendein. Gas führt, das eine zerstörende Wirkung auf Metallteile ausübt, ein Meßinstrument b vermittels des Rohres c angeschlossen ist. Gemäß der Erfindung wird nun in der Nähe des Meßinstrumentes b eine Leitung d mit dem Rohr c verbunden. Die Mündung der Leitung d wird vorteilhaft unter Einfluß eines Nadelventiles e gesetzt, um eine Feineinstellung für den Zufluß der durch die Leitung d in das Rohr c eintretenden Luft o. dgl. zu haben.The drawing shows a schematic representation of the new facility illustrated. It is assumed that line a, which any. gas leads, which has a destructive effect on metal parts, a measuring instrument b is connected by means of the pipe c. According to the invention is now in the vicinity of the measuring instrument b, a line d is connected to the pipe c. The mouth of the line d is advantageously set under the influence of a needle valve e for fine adjustment for the inflow of the air or the like entering the pipe c through the line d to have.
Entsprechend den in der Leitung a fließenden Gasen wird durch die Leitung d ein neutrales Gas in das Rohr c eingeleitet und ruft in dieser eine dauernde Strömung hervor, die von dem Instrument b weg zur Leitung a gerichtet ist. Diese Strömung wirkt somit den aus der Gasleitung a zum Instrument b streichenden Molekülen, welche dieses mit der Zeit zerstören würden, entgegen und verhindert das Eindringen der zerstörenden Moleküle in dasselbe. Es wird somit an der Ventilstelle e gleichsam ein Luftkissen bzw. ein Polster aus neutralen Gasen geschaffen, das sich beständig erneuert und das Instrument schützt.Corresponding to the gases flowing in the line a, a neutral gas is introduced into the tube c through the line d and causes a continuous flow in it, which is directed away from the instrument b to the line a. This flow thus counteracts the molecules brushing from the gas line a to the instrument b , which would destroy it over time, and prevents the destructive molecules from penetrating into it. An air cushion or cushion of neutral gases is thus created at the valve point e, which is constantly renewed and protects the instrument.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE347839T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE347839C true DE347839C (en) | 1922-01-26 |
Family
ID=6256670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT347839D Expired DE347839C (en) | Device for protecting instruments connected to gas lines, especially pressure gauges |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE347839C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748728C (en) * | 1939-02-24 | 1945-01-12 | Device to prevent the contamination of sight glasses for the level display of impure liquids | |
| DE1235030B (en) * | 1963-03-25 | 1967-02-23 | Yawata Iron & Steel Co | Method and device for continuously measuring the pressure of a dust-laden gas located in a container |
-
0
- DE DENDAT347839D patent/DE347839C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748728C (en) * | 1939-02-24 | 1945-01-12 | Device to prevent the contamination of sight glasses for the level display of impure liquids | |
| DE1235030B (en) * | 1963-03-25 | 1967-02-23 | Yawata Iron & Steel Co | Method and device for continuously measuring the pressure of a dust-laden gas located in a container |
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