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DE1190541B - Magnetic float switch - Google Patents

Magnetic float switch

Info

Publication number
DE1190541B
DE1190541B DESCH32273A DESC032273A DE1190541B DE 1190541 B DE1190541 B DE 1190541B DE SCH32273 A DESCH32273 A DE SCH32273A DE SC032273 A DESC032273 A DE SC032273A DE 1190541 B DE1190541 B DE 1190541B
Authority
DE
Germany
Prior art keywords
magnetic
control magnet
float switch
magnetic float
magnet
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
DESCH32273A
Other languages
German (de)
Inventor
Eduard Drtil
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.)
CF Scheer und Cie GmbH and Co KG
Original Assignee
CF Scheer und Cie GmbH and Co KG
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 CF Scheer und Cie GmbH and Co KG filed Critical CF Scheer und Cie GmbH and Co KG
Priority to DESCH32273A priority Critical patent/DE1190541B/en
Publication of DE1190541B publication Critical patent/DE1190541B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01H36/02—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 movement of a float carrying a magnet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/56—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Description

Magnet-Schwimmerschalter Die Erfindung betrifft einen Magnet-Schwimmerschalter mit Quecksilberschaltröhren.Magnetic float switch The invention relates to a magnetic float switch with mercury interrupter tubes.

Bei den bekannten Magnet-Schwimmerschaltern mit Quecksilberschaltröhren bewegt sich ein Schwimmer je nach Änderung des Wasserstandes in einem geschlossenen Gehäuse auf und ab. tÇblicherweise trägt er an einer Stange den Steuermagneten, der in einem unmagnetischen Rohr gleitet und die Quecksilberschalter in bekannter Weise betätigt. Dabei besteht die Gefahr, daß eisenhaltige Verunreinigungen vom Steuermagneten angezogen werden und ihn in dicker Schicht umgeben, so daß er in seiner Führung nicht mehr gleiten kann und die Funktion blockiert ist. Eine Anordnung des Magneten in größerer Höhe über dem Wasserspiegel brachte oft nicht den gewünschten Erfolg; die Verunreinigungen werden auch über größere Abstände hinweg vom Magneten angezogen und führen dann zu der geschilderten, für den Kessel äußerst gefährlichen Funktionsstörung. With the known magnetic float switches with mercury switching tubes a swimmer moves in a closed one depending on the change in the water level Housing up and down. He usually carries the control magnet on a rod, which slides in a non-magnetic tube and the mercury switch in a familiar Way operated. There is a risk that iron-containing impurities from Control magnets are attracted and surround it in a thick layer so that it is in its guidance can no longer slide and the function is blocked. An arrangement the magnet at a greater height above the water level often did not produce the desired result Success; the impurities are also at greater distances from the magnet attracted and then lead to the described, extremely dangerous for the boiler Malfunction.

Der Vorschlag begegnet dem geschilderten tÇbelstand dadurch, daß erfindungsgemäß der Zugang zum Bewegungsraum des Steuermagneten durch eine magnetische Scheibe abgedeckt wird, wie in der Zeichnung schematisch dargestellt ist. In dem Gehäuse 11 befindet sich ein Schwimmer 12, der auf einer Stange 18 den Steuermagneten 13 trägt. The proposal counteracts the described situation in that according to the invention the access to the movement space of the control magnet by a magnetic Disc is covered, as shown schematically in the drawing. By doing Housing 11 is a float 12, the control magnet on a rod 18 13 carries.

Dieser gleitet in einem Führungsrohr 14 und betätigt in bekannter Weise beispielsweise eine Quecksilberschaltröhre 15. Die untere Öffnung des Rohres 14 wird durch eine magnetische Lochscheibe 16 abgedeckt, die z. B. durch eine Überwurfkappe in geeigneter Weise festgehalten wird. Die Schwimmerstange 18 geht mit angemessenem Spiel durch das Loch 17 der Scheibe 16 hindurch.This slides in a guide tube 14 and actuated in a known manner For example, a mercury interrupter tube 15. The lower opening of the tube 14 is covered by a magnetic perforated disk 16 which, for. B. by a cap is recorded in an appropriate manner. The float rod 18 goes with reasonable Play through the hole 17 of the disc 16.

Die Funktion ist aus der Zeichnung verständlich. The function can be understood from the drawing.

Eisenhaltige Verunreinigungen, die durch Überflutung oder mit dem Dampf in das Führungsrohr gelangen könnten, werden von der Magnetscheibe 16 abgefangen. Sie gelangen nicht bis zum Steuermagneten, an dem sie sich absetzen und den sie blockieren könnten, sondern bleiben schon vorher an der Magnetscheibe haften, wo sie keinerlei Störungen verursachen können.Ferrous contaminants caused by flooding or with the Steam in the guide tube could get, are intercepted by the magnetic disk 16. They do not get as far as the control magnet, on which they settle and which they block, but stick to the magnetic disk beforehand, where they cannot cause any interference.

Claims (3)

Patentansprüche: 1. Magnet-Schwimmerschalter mit Quecksilberschaltröhren beliebiger Zahl und Anordnung, bei dem der Steuermagnet in einem unmagnetischen Rohr auf und ab gleitet, d a -durch gekennzeichnet, daß der Bewegungsraum des Steuermagneten durch eine feststehende magnetische Scheibe abgedeckt ist, die das Hochsteigen von eisenhaltigen Verunreinigungen zum Steuermagneten verhindert. Claims: 1. Magnetic float switch with mercury switching tubes Any number and arrangement in which the control magnet is in a non-magnetic Tube slides up and down, d a -characterized in that the movement space of the control magnet is covered by a fixed magnetic disc that prevents the climbing of prevents ferrous contamination to the control magnet. 2. Schalter nach Anspruch 1, dadurch gekennzeichnet, daß die Scheibe aus einem axial magnetisierten Dauermagneten besteht. 2. Switch according to claim 1, characterized in that the disc consists of an axially magnetized permanent magnet. 3. Schalter nach Anspruch 1, dadurch gekennzeichnet, daß die Magnetscheibe ein Loch besitzt, durch welches die Schwimmerstange hindurchtritt. 3. Switch according to claim 1, characterized in that the magnetic disc has a hole through which the float rod passes.
DESCH32273A 1962-10-31 1962-10-31 Magnetic float switch Pending DE1190541B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH32273A DE1190541B (en) 1962-10-31 1962-10-31 Magnetic float switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH32273A DE1190541B (en) 1962-10-31 1962-10-31 Magnetic float switch

Publications (1)

Publication Number Publication Date
DE1190541B true DE1190541B (en) 1965-04-08

Family

ID=7432392

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH32273A Pending DE1190541B (en) 1962-10-31 1962-10-31 Magnetic float switch

Country Status (1)

Country Link
DE (1) DE1190541B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4943210A (en) * 1988-10-03 1990-07-24 Bailey Jr James R Pump control system, level sensor switch and switch housing
US4972709A (en) * 1988-10-03 1990-11-27 Bailey Jr James R Pump control system, level sensor switch and switch housing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4943210A (en) * 1988-10-03 1990-07-24 Bailey Jr James R Pump control system, level sensor switch and switch housing
US4972709A (en) * 1988-10-03 1990-11-27 Bailey Jr James R Pump control system, level sensor switch and switch housing

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