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 separated

Info

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
Application number
DE2359750A
Other languages
German (de)
Inventor
Hans Maile
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAILE
Original Assignee
MAILE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAILE filed Critical MAILE
Priority to DE2359750A priority Critical patent/DE2359750A1/en
Publication of DE2359750A1 publication Critical patent/DE2359750A1/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00Switches operated by change of a physical condition
    • H01H35/24Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0073Switches 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

The differential pressure switch is intended for application with gaseous and liquid media and has two hermetically gas sealed chambers connected only with the medium feeds. The chambers are separated by a diaphragm without electric or mechanical bushings or connections. The diaphragm is moved by the pressure difference in the chambers, and this motion is transmitted to the outside. The transmission is carried out by a pair of permanent magnets through a solid, gas-tight, non-magnetic wall. The pair of permanent magnets actuates switches located outside the chambers containing the gaseous or liquid medium.

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)

235975Q235975Q Patentanspruch.Claim. Differenzdruckschalter für gasförmige und-"flüssige Medien, dadurch g e k e η η ζ e i c h η e t, daß zwei vollständig gasdichte, nur mit den Zuleitungen verbundene Kammern, ohne elektrische oder mechanische Durchdringung durch eine Membrane getrennt sind, wobei der Druckunterschied in den Kammern die Membrane bewegt und diese Bewegung nach außen übertragen wird, durch eine feste, gasdichte, nicht magnetische Wand hindurch mittels des Permanentmagnetpaares 4 und 5, das einen außerhalb der gas- oder flüssigkeitsführenden Kammern liegenden Schalter betätigt. -."Differential pressure switch for gaseous and "liquid media, thereby g e k e η η ζ e i c h η e t that two completely gas-tight chambers connected only to the supply lines, without electrical or mechanical penetration through a membrane are separated, the pressure difference in the chambers the Membrane moves and this movement is transmitted to the outside through a solid, gas-tight, non-magnetic wall by means of the permanent magnet pair 4 and 5, the one outside the gas or liquid-carrying chambers lying switch actuated. -. " 509823/0156509823/0156 LeerseiteBlank page
DE2359750A 1973-11-30 1973-11-30 Sealed explosion-proof differential pressure switch - has two gas-tight chambers connected by leads only and diaphragm separated Pending DE2359750A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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