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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
- F04B11/0016—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid spring
- F04B11/0025—Equalisation 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)
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)
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 |
-
1931
- 1931-10-24 CH CH158616D patent/CH158616A/en unknown
Cited By (4)
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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