DE327981C - Explosion-proof switch cell with safety openings - Google Patents

Explosion-proof switch cell with safety openings

Info

Publication number
DE327981C
DE327981C DE1920327981D DE327981DD DE327981C DE 327981 C DE327981 C DE 327981C DE 1920327981 D DE1920327981 D DE 1920327981D DE 327981D D DE327981D D DE 327981DD DE 327981 C DE327981 C DE 327981C
Authority
DE
Germany
Prior art keywords
explosion
switch cell
flap
cell
oil switch
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
Application number
DE1920327981D
Other languages
German (de)
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Application granted granted Critical
Publication of DE327981C publication Critical patent/DE327981C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/57—Recuperation of liquid or gas

Landscapes

  • Special Wing (AREA)

Description

Aus den bei Ölschalterexplosionen gemachten Beobachtungen geht hervor, daß die zufälligen Austrittsöffnungen an ölschalterzellen, wie ölablaufrohr, Türundichtigkeiten usw. nicht genügen, um den Gasdruck so schnell auszugleichen, daß nicht ein gefährlicher Innendruck entsteht,The observations made during oil switch explosions show that the accidental Outlet openings on oil switch cells, such as oil drain pipe, door leaks, etc. are not sufficient to keep the gas pressure so to compensate quickly so that a dangerous internal pressure does not arise,

Mittel, uni diesen Überdruck zu beheben, bestehen bereits in verschiedenen Ausführungen, ihnen haftet aber der Mangel an, daß gerade im kritischen Augenblicke der Explosion öl in den Bedienungsgang geschleudert werden kann, oder daß bei Kippung des ölkastens nach der Seite des Ganges hin für das überfließende öl ein beinahe unbehindertes Austreten in diesen ermöglicht ist.Means of eliminating this overpressure, already exist in different versions, but they have the lack of that Just at the critical moment of the explosion, oil was thrown into the service corridor can be, or that when the oil box is tilted to the side of the aisle for the overflowing oil allows an almost unhindered escape into these.

Vorstehende .Erfindung erlaubt nun eine genügend große Öffnung für die Gasentweichung zu schaffen, ohne daß das Öl in denThe above .Erfindung now allows a sufficiently large opening for the gas escape to create without the oil in the

ao Bedienungsgang austreten kann.ao service corridor can exit.

Ein Ausführungsbeispiel des Erfindungsgegenstandes zeigt beiliegende Zeichnung. An exemplary embodiment of the subject matter of the invention is shown in the accompanying drawing.

Die einen Teil oder die ganze vordere Wand der Zelle α bildende Tür b weist einen Luftschacht c auf, der unten mit der Zelle in Verbindung steht und der bei einer Explosion von oben her zusammengepreßten Luft den Abzug gewährt, nicht aber dem nachfolgenden Öl.The door b , which forms part or all of the front wall of the cell α, has an air shaft c , which is in communication below with the cell and which allows the air compressed from above in the event of an explosion, but not the subsequent oil.

Wie in der Zeichnung strichpunktiert angegeben ist, kann der Luftschacht c oben eine oder mehrere Klappen d oder dx (halboffen gezeichnet) besitzen. Die Klappe d oder d% öffnet sich bei einer Schalterexplosion infolge des entstehenden Gasdruckes selbsttätig und fällt durch ihr Eigengewicht nach erfolgter Explosion sofort wieder in die Schließlage zurück.As indicated by dash-dotted lines in the drawing, the air shaft c above can have one or more flaps d or d x (drawn half-open). The flap d or d % opens automatically in the event of a switch explosion as a result of the resulting gas pressure and, due to its own weight, falls back into the closed position immediately after the explosion.

Es kann auch eine Klappe vorgesehen sein, die normalerweise offen ist und nötigenfalls von Hand geschlossen wird. Ferner läßt sich die Anordnung der Klappe auch so denken, daß sich diese erst schließt, wenn im Zelleninnern Feuer entsteht und dabei ein die Klappe offenhaltendes Element durchschmilzt oder abbrennt. Die beiden letztangegebenen Einrichtungen für die Sicherheitsöffnungen haben den Vorteil, daß die austretende Luft keine andere als ihre eigene Masse zu beschleunigen hat, wodurch der Innendruck vermindert wird.A flap can also be provided which is normally open and if necessary closed by hand. Furthermore, the arrangement of the flap can also be thought of as that this only closes when fire arises inside the cell and thereby engages the Element holding the flap open melts through or burns off. The last two Devices for the safety openings have the advantage that the escaping air none other than its own mass has to accelerate, thereby increasing the internal pressure is decreased.

Claims (5)

Patent-Ansprüche :Patent Claims: 1. Explosionssichere ölschalterzelle mit Sicherheitsöffnungen, gekennzeichnet durch einen mit dem Zelleninnern verbundenen Luftschacht.1. Explosion-proof oil switch cell with Security openings, characterized by one connected to the interior of the cell Air shaft. 2. Explosionssichere ölschalterzelle nach Anspruch 1, dadurch gekennzeichnet, daß der Luftschacht in die Zellentür verlegt "ist.2. Explosion-proof oil switch cell according to claim 1, characterized in that the air shaft in the cell door is relocated ". 3. ExplosionssichereÖlschalterzelle nach3. Explosion-proof oil switch cell after Anspruch ι, dadurch gekennzeichnet, daß der Luftschacht oben wenigstens eine Klappe aufweist, die sich bei innerni Gasüberdruck öffnet und nach Druckausgleich wieder schließt.Claim ι, characterized in that the air shaft at least one above Has flap that opens at internal gas overpressure and after pressure equalization closes again. 4. Explosionssichere ölschalterzelle nach Anspruch 1, dadurch gekennzeichnet, daß eine Klappe vorgesehen ist, die normalerweise offen und nötigenfalls von · Hand schließbar ist. ■4. Explosion-proof oil switch cell after Claim 1, characterized in that a flap is provided, which normally is open and, if necessary, can be closed by hand. ■ ■ ■ 5. Explosionssichere ölschalterzelle nach Anspruch 1, dadurch gekennzeichnet, daß die Klappe sich selbsttätig erst schließt, wenn im Zelleninnern Feuer entsteht und dabei ein die Klappe. offenhaltendes EIement verbrennt.5. Explosion-proof oil switch cell according to claim 1, characterized in that the flap only closes automatically when a fire occurs inside the cell and at the same time the flap. Keeping the element open burns. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings. Berlin, gebrückt in derBerlin, bridged in the
DE1920327981D 1920-02-06 1920-02-15 Explosion-proof switch cell with safety openings Expired DE327981C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH327981X 1920-02-06

Publications (1)

Publication Number Publication Date
DE327981C true DE327981C (en) 1920-10-20

Family

ID=4500804

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920327981D Expired DE327981C (en) 1920-02-06 1920-02-15 Explosion-proof switch cell with safety openings

Country Status (1)

Country Link
DE (1) DE327981C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059079B (en) * 1957-05-07 1959-06-11 Licentia Gmbh High-voltage switchgear in an encapsulated design
DE1123734B (en) * 1955-04-23 1962-02-15 Calor Emag Elektrizitaets Ag Encapsulated high-voltage switchgear of cell construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123734B (en) * 1955-04-23 1962-02-15 Calor Emag Elektrizitaets Ag Encapsulated high-voltage switchgear of cell construction
DE1059079B (en) * 1957-05-07 1959-06-11 Licentia Gmbh High-voltage switchgear in an encapsulated design

Similar Documents

Publication Publication Date Title
DE102011001260B3 (en) Smoke control system
DE327981C (en) Explosion-proof switch cell with safety openings
CH86640A (en) Explosion-proof oil switch cell.
DE2406843C3 (en) Pressure equalization arrangement for a vehicle fuel tank
DE202016106136U1 (en) Fire protection system
CH163347A (en) Device on compressors, in particular rotary piston compressors, for automatically starting the same when empty.
DE364813C (en) Safety device for pit fan
DE483915C (en) Device on motor vehicle u. Like. Cooling to prevent untimely water leakage through the overflow pipe
DE638548C (en) Device for ventilating and ventilating rooms
DE913853C (en) A gas protection ventilation system connected to a fresh air ventilation system, for example air conditioning
DE102012108722A1 (en) Fireplace- or tiled stove or fireplace insert for buildings, has pressing device with pivot lever, which is engaged with abutment in closed position of door, while pivot lever is engaged with spring that is designed as tension spring
DE2843170A1 (en) ARRANGEMENT IN A COMPRESSOR FOR DRAINING LIQUID
DE410033C (en) Device for the accelerated venting of the shower pipe network of a compressed air sprinkler system by means of a vent valve and an air chamber, which is connected to the shower pipe network through a fine opening
DE430064C (en) Valve for automatic gas extinguishing systems
DE1109112B (en) Oven with steam generator
DE2915735A1 (en) Clean-air drum-ventilation for dry cleaning equipment - using buffer reservoir in closed solvent recovery system
DE341381C (en) High lift safety valve
DE647594C (en) Fire extinguishing device for closed rooms with openings for the introduction of an extinguishing gas
AT133041B (en) Device for automatic start-up of compressors, especially rotary lobe compressors.
DE1849201U (en) OVEN.
DE525868C (en) Device for extinguishing carburetor fuel
DE598521C (en) Automatic fire extinguishing device for vehicles, airplanes, etc. like
DE738424C (en) Anti-rust device
DE556848C (en) Safety valve for rooms and containers for the storage of explosive and flammable objects, e.g. B. of movies
DE945527C (en) Arrangement to avoid smoke from transformer or rectifier systems in the event of an oil fire