DE2359750A1 - Sealed explosion-proof differential pressure switch - has two gas-tight chambers connected by leads only and diaphragm separated - Google Patents
Sealed explosion-proof differential pressure switch - has two gas-tight chambers connected by leads only and diaphragm separatedInfo
- Publication number
- DE2359750A1 DE2359750A1 DE2359750A DE2359750A DE2359750A1 DE 2359750 A1 DE2359750 A1 DE 2359750A1 DE 2359750 A DE2359750 A DE 2359750A DE 2359750 A DE2359750 A DE 2359750A DE 2359750 A1 DE2359750 A1 DE 2359750A1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- differential pressure
- chambers
- pressure switch
- leads
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
Description
Hans Maile 7061 Oberberken, Friedrichstr. 16 Heinz Wobbermin 7061 Oberberken, Schlichtener Str. 16 Roland Kugler 7061 Weiler, Sonnenscheins tr. 12 2359750Hans Maile 7061 Oberberken, Friedrichstr. 16 Heinz Wobbermin 7061 Oberberken, Schlichtener Str. 16 Roland Kugler 7061 Weiler, Sonnenscheins tr. 12 2359750
Dichter und explosionssicherer Differenzdruckschalter für gasförmige und flüssige Medien. Sealed and explosion-proof differential pressure switch for gaseous and liquid media .
Dichte, explosionssichere Differenzdruckschalter sind bekannt. Der technische Aufwand, der aber nötig ist, um Kabeldurchführungen, Übertragungsgestänge usw. an gas- oder flüssigkeitsführenden Räumen abzudichten oder explosionsgeschützte Schalter einzusetzen, ist hoch. Solche Konstruktionen sind überdies nicht unbedingt dauersicher infolge Abnützung und Alterung.Tight, explosion-proof differential pressure switches are known. Of the technical effort, which is necessary to make cable bushings, Sealing transmission rods etc. in rooms carrying gas or liquids or using explosion-proof switches high. In addition, such constructions are not necessarily permanent due to wear and tear and aging.
Die nachstehend beschriebene Erfindung hat diese Nachteile nicht und bietet darüber hinaus eine Konstruktion, bei der keinerlei stromführende Teile in gas- oder flüssigkeitsführenden Räumen vorhanden sind.The invention described below does not have these disadvantages and moreover offers a construction in which no current-carrying Parts are present in rooms carrying gas or liquids.
Die Übertragung der Membranbewegung zur Auslösung von Schaltimpulsen erfolgt hier durch ein Paar Permanentmagnete. Dadurch ist eine hermetische Abdichtung der gas- oder flüssigkeitsführenden Teile nach außen hin gewährleistet und die Notwendigkeit eines Explosions-The transmission of the membrane movement to trigger switching impulses is done here by a pair of permanent magnets. As a result, the gas or liquid-carrying parts are hermetically sealed guaranteed externally and the necessity of an explosion
Schutzes ausgeschaltet.Protection switched off.
Ein Konstruktionsbeispiel des Erfindungsgegenstandes ist z.B. für Gase in Fig. 1 und 2 dargestellt.A construction example of the subject invention is e.g. Gases shown in FIGS. 1 and 2.
Kammer 1 und Kammer 2 sind gasdicht. Sie sind durch die Membrane 3 voneinander gasdicht getrennt. Auf die Membrane J ist ein Permanentmagnet 4 befestigt. Sie wird durch die Feder 6 gegen die obere Wand 7 der Kammer 2 gedrückt. Diese Wand 7 besteht aus nichtmagnetischem Werkstoff. Oberhalb der Wand 7 ist der Schalter 8 außerhalb der gasführenden Kammern angeordnet. Auf seinem Schalthebel 9 ist der Permanentmagnet 5 befestigt. Das Permanentmagnetpaar 4- und 5 ist in dem dargestellten Beispiel so gepolt, daß sich die gleichnamigen Pole gegenüberstehen, einander also abstoßen. Dadurch wird erreicht, daß der Schalter 8 bei der Stellung nach Fig. 1 eingedrückt ist, während er bei Stellung nach Fig. 2 frei ist. Die Polung oder Art des Schalters 8 ist für den Erfindungsgegenstand nebensächlich und richtet sich nach dem jeweiligen Anwendungsfall. Auch das Permanentmagnetpaar 4- und 5 kann umgekehrt gepolt sein.Chamber 1 and chamber 2 are gas-tight. You are through the membrane 3 separated from each other in a gastight manner. A permanent magnet 4 is attached to the membrane J. It is held against the upper wall 7 by the spring 6 the chamber 2 pressed. This wall 7 consists of a non-magnetic material. Above the wall 7, the switch 8 is outside the gas-carrying Arranged chambers. The permanent magnet is on his shift lever 9 5 attached. The permanent magnet pair 4 and 5 is in In the example shown, the polarity is such that the poles of the same name are opposite each other, i.e. they repel each other. This achieves that the switch 8 is pressed in the position according to FIG. 1, while it is free in the position shown in FIG. The polarity or type the switch 8 is irrelevant to the subject matter of the invention and depends on the particular application. Also the pair of permanent magnets 4- and 5 can be polarized the other way round.
S09823/0156S09823 / 0156
Die Wirkungsweise bestellt nun darin, daß das Medium bei den Eingängen 10 und 11 von den Prüf stellen her in die Kammern 1 und 2 gelangt. Entstellt in Kammer 2 ein höherer Druck als in Kammer 1 und überwindet dieser die Kraft der Feder 6, dann bewegt sich die Membrane 3 in die untere Stellung nach Fig. 2. Dadurch bewegt sich auch der Hebel 9 mit dem Permanentmagneten 5 des Schalters 8 in Freistellung nach, unten. Die Wahl der Feder, oder die Einstellung der Federkraft bestimmt die Größe des Differenzdruckes, bei welchem das Gerät schaltet.The mode of action is now that the medium is at the inputs 10 and 11 from the test set forth into chambers 1 and 2. Distorts a higher pressure in chamber 2 than in chamber 1 and if this overcomes the force of the spring 6, then the membrane 3 moves into the lower position according to FIG. 2. This moves also the lever 9 with the permanent magnet 5 of the switch 8 in Exemption downwards. The choice of the spring, or the setting the spring force determines the size of the differential pressure at which the device switches.
Wird die Feder 6 in der Kammer 2 angebracht, dann ist der höhere Druck über den Eingang 10 in die Kammer 1 zu führen.If the spring 6 is installed in the chamber 2, the higher pressure is to be fed into the chamber 1 via the inlet 10.
Dieser Differenzdruckschalter kann bei beliebigem Druck, sowie auch bei Vakuum eingesetzt werden.This differential pressure switch can be used at any pressure, as well as in a vacuum.
509023/0156509023/0156
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2359750A DE2359750A1 (en) | 1973-11-30 | 1973-11-30 | Sealed explosion-proof differential pressure switch - has two gas-tight chambers connected by leads only and diaphragm separated |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2359750A DE2359750A1 (en) | 1973-11-30 | 1973-11-30 | Sealed explosion-proof differential pressure switch - has two gas-tight chambers connected by leads only and diaphragm separated |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2359750A1 true DE2359750A1 (en) | 1975-06-05 |
Family
ID=5899552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2359750A Pending DE2359750A1 (en) | 1973-11-30 | 1973-11-30 | Sealed explosion-proof differential pressure switch - has two gas-tight chambers connected by leads only and diaphragm separated |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2359750A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3336469A1 (en) * | 1982-10-12 | 1984-04-12 | Mitsubishi Denki K.K., Tokyo | MEMBRANE DEVICE WITH MAGNETIC GENERATED HYSTERESIS CHARACTERISTICS |
DE3417142A1 (en) * | 1983-06-18 | 1984-12-20 | Mitsubishi Denki K.K., Tokio/Tokyo | PRESSURE-SENSITIVE DEVICE WITH HYSTERESIS TO AVOID SUSPENSION |
FR2775784A1 (en) * | 1998-03-05 | 1999-09-10 | Francois Lafay | Device for detection of water leaks in domestic water supplies |
CN112682889A (en) * | 2021-01-18 | 2021-04-20 | 钱伟 | Energy-saving ventilation device for green building |
-
1973
- 1973-11-30 DE DE2359750A patent/DE2359750A1/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3336469A1 (en) * | 1982-10-12 | 1984-04-12 | Mitsubishi Denki K.K., Tokyo | MEMBRANE DEVICE WITH MAGNETIC GENERATED HYSTERESIS CHARACTERISTICS |
DE3417142A1 (en) * | 1983-06-18 | 1984-12-20 | Mitsubishi Denki K.K., Tokio/Tokyo | PRESSURE-SENSITIVE DEVICE WITH HYSTERESIS TO AVOID SUSPENSION |
FR2775784A1 (en) * | 1998-03-05 | 1999-09-10 | Francois Lafay | Device for detection of water leaks in domestic water supplies |
CN112682889A (en) * | 2021-01-18 | 2021-04-20 | 钱伟 | Energy-saving ventilation device for green building |
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