CH158616A - Air chamber. - Google Patents

Air chamber.

Info

Publication number
CH158616A
CH158616A CH158616DA CH158616A CH 158616 A CH158616 A CH 158616A CH 158616D A CH158616D A CH 158616DA CH 158616 A CH158616 A CH 158616A
Authority
CH
Switzerland
Prior art keywords
air chamber
liquid
air
vapor
cushion
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Gebr Sulzer
Original Assignee
Sulzer 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 Sulzer Ag filed Critical Sulzer Ag
Publication of CH158616A publication Critical patent/CH158616A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0008Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
    • F04B11/0016Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid spring
    • F04B11/0025Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid spring the spring fluid being in direct contact with the pumped fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Humidification (AREA)

Description

  

  Windkessel.    Da bei den bekannten zum Beispiel in  Verbindung mit     Kolbenspeisepumpen    verwen  deten Windkesseln stets eine gewisse Menge  Luft vom Wasser absorbiert wird, so ist es  notwendig, die Windkessel mit verdichteter  Luft ständig     nachzuspeisen.    Ausser der Not  wendigkeit von besonderen Luftpumpen -falls  nicht gerade ein     Druckluftnetz    zur Verfügung  steht - hat diese Ausbildung den Nachteil,  dass eine unerwünschte Absorption von Luft  durch das Speisemittel gefördert wird. Die  Erfindung bezweckt, nicht nur diesen Nach  teil zu vermeiden, sondern auch zu verhin  dern, dass Luft überhaupt vom Speisemittel,  zum Beispiel Wasser, während des Betriebes  aufgenommen und dadurch der Betrieb zum  Beispiel eines Dampferzeugers in nachteiligem  Sinn beeinflusst wird.

   Gemäss der Erfindung  wird zur Erzeugung der dämpfenden Wirkung  ein Dampfpolster verwendet, wobei dieses  zum Beispiel durch Verdampfung der im  Windkessel selber enthaltenen     Flüssigkeit     erzeugt werden kann.    Eine beispielsweise Ausführungsform ist  in schematischer Darstellung auf der Zeich  nung ersichtlich.  



  Die Flüssigkeit beziehungsweise das Was  ser wird von einer nichtgezeichneten Kolben  pumpe durch den Stutzen 1 in den Wind  kessel 2 gefördert und fliesst nachher     durch     den Stutzen 3 durch eine Druckleitung zum  Beispiel in einen Dampferzeuger. Im obern  Teil des Windkessels ist eine dampfbeheizte  Rohrschlange 4 vorgesehen, durch welche  solange Flüssigkeit verdampft wird, bis sich  der Flüssigkeitsspiegel 5 im Windkessel bis  unter die Heizschlange 4 gesenkt hat. Der  so entstandene Dampfraum dient dann als  Polster zum Ausgleich der von der Kolben  pumpe herrührenden Beschleunigungen und  Verzögerungen. Ein     Wasserstandsrohr    6 ge  stattet, die jeweilige Lage des Wasserspie  gels 5 zu erkennen.  



  Da infolge von Wärmeverlusten ein Teil  des Dampfes mit der Zeit kondensiert, steigt  der Wasserspiegel 5 allmählich wieder in die      Höhe. Sobald er jedoch mit der Heizschlange  4 in     Berührung    kommt, wird von neuem  Wasser verdampft, so dass das Dampfpolster  stets den gewünschten Rauminhalt aufweist.  Natürlich ist der Windkessel zur Vermin  derung der Wärmeverluste gut zu isolieren.  Ferner ist es zweckmässig, Filter oder andere  die     Wirbelung    und     Vermiscbung    verhindernde  Vorrichtungen in den Flüssigkeitsraum des  Windkessels     einzubauen,    damit sich die oberste  und wärmste Schicht des Flüssigkeitsinhaltes  nicht mit der kälteren Flüssigkeit vermischt.  



  An Stelle der Dampfheizung könnte auch  ein     elektrischer        Heizwiderstand    eingebaut sein,  zu welchem die Stromzufuhr in Abhängig  keit von einem Schwimmer jeweils einge  schaltet wird, sobald der Flüssigkeitsspiegel  eine gewisse Höhe überschreitet.  



  Es könnten auch Tauchelektroden zur  Anwendung kommen, welche nur vom Strom       durchflossen    werden, solange sie in die Flüssig  keit eintauchen. Dabei würde die Flüssigkeit  selbst den     Heizwiderstand    bilden.



  Air chamber. Since in the known, for example in connection with piston feed pumps, a certain amount of air is always absorbed by the water, it is necessary to constantly replenish the air chamber with compressed air. Apart from the need for special air pumps - if a compressed air network is not available - this design has the disadvantage that undesired absorption of air is promoted by the feed means. The invention aims not only to avoid this disadvantage, but also to prevent air from being absorbed at all by the feed, for example water, during operation and thereby the operation of a steam generator, for example, being adversely affected.

   According to the invention, a vapor cushion is used to generate the damping effect, which can be generated, for example, by evaporation of the liquid contained in the air chamber itself. An example embodiment is shown schematically in the drawing.



  The liquid or what water is pumped by a piston pump, not shown, through the nozzle 1 into the wind boiler 2 and then flows through the nozzle 3 through a pressure line, for example into a steam generator. In the upper part of the air chamber there is a steam-heated pipe coil 4 through which liquid is evaporated until the liquid level 5 in the air chamber has dropped below the heating coil 4. The resulting vapor space then serves as a cushion to compensate for the accelerations and decelerations caused by the piston pump. A water level tube 6 ge equips the respective position of the water mirror 5 to be recognized.



  Since part of the steam condenses over time as a result of heat losses, the water level 5 gradually rises up again. However, as soon as it comes into contact with the heating coil 4, new water is evaporated so that the steam cushion always has the desired volume. Of course, the air chamber must be well insulated to reduce heat loss. It is also advisable to install filters or other devices that prevent turbulence and mixing in the liquid space of the air vessel so that the top and warmest layer of the liquid content does not mix with the colder liquid.



  Instead of the steam heater, an electrical heating resistor could also be installed, to which the power supply is switched on as a function of a float as soon as the liquid level exceeds a certain level.



  Immersion electrodes could also be used, through which the current only flows as long as they are immersed in the liquid. The liquid itself would form the heating resistor.

 

Claims (1)

PATENTANSPRUCH: Windkessel, insbesondere in Verbindung mit Kolbenspeisepumpen, dadurch gelkenn- zeichnet, dass zur Erzeugung der dämpfenden Wirkung ein Dampfpolster verwendet wird, zum Zweck, während des Betriebes die Auf nahme von Luft durch die Flüssigkeit im Windkessel zu verunmöglichen. UNTERANSPRüCHE 1. Windkessel nach Patentanspruch, dadurch gekennzeichnet, dass das Dampfpolster durch Verdampfung der im Windkessel enthal tenen Flüssigkeit erzeugt wird. PATENT CLAIM: Air tank, especially in connection with piston feed pumps, characterized in that a vapor cushion is used to generate the damping effect, for the purpose of preventing air from being absorbed by the liquid in the air tank during operation. SUBClaims 1. Air chamber according to claim, characterized in that the vapor cushion is generated by evaporation of the liquid contained in the air chamber. 2. Windkessel nach Unteranspruch 1, gekenn zeichnet durch eine Heizvorrichtung, wel che bei Verminderung des Dampfvolumens mit dem Flüssigkeitsspiegel in Berührung kommt und dabei Flüssigkeit verdampft. 2. Air chamber according to dependent claim 1, marked is characterized by a heating device, wel surface comes into contact with the liquid level when the volume of vapor is reduced and liquid evaporates in the process.
CH158616D 1931-10-24 1931-10-24 Air chamber. CH158616A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH158616T 1931-10-24

Publications (1)

Publication Number Publication Date
CH158616A true CH158616A (en) 1932-11-30

Family

ID=4412580

Family Applications (1)

Application Number Title Priority Date Filing Date
CH158616D CH158616A (en) 1931-10-24 1931-10-24 Air chamber.

Country Status (1)

Country Link
CH (1) CH158616A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561528A (en) * 1947-04-07 1951-07-24 Phillips Petroleum Co Pulsation chamber
DE954571C (en) * 1941-02-20 1956-12-20 Fritz Tolkien Dipl Ing Method and device for shock absorption in the pressure or suction line of piston pumps
DE1029385B (en) * 1956-02-28 1958-05-08 Rudolf Hingst Dipl Ing Method and device for regulating the delivery rate of feed pumps for steam boilers
DE1119875B (en) * 1957-08-13 1961-12-21 Westinghouse Electric Corp Device for regulating the pressure of a coolant which exits a nuclear reactor and which can be vaporized and which is guided in a circulation system via a heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954571C (en) * 1941-02-20 1956-12-20 Fritz Tolkien Dipl Ing Method and device for shock absorption in the pressure or suction line of piston pumps
US2561528A (en) * 1947-04-07 1951-07-24 Phillips Petroleum Co Pulsation chamber
DE1029385B (en) * 1956-02-28 1958-05-08 Rudolf Hingst Dipl Ing Method and device for regulating the delivery rate of feed pumps for steam boilers
DE1119875B (en) * 1957-08-13 1961-12-21 Westinghouse Electric Corp Device for regulating the pressure of a coolant which exits a nuclear reactor and which can be vaporized and which is guided in a circulation system via a heat exchanger

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