DE300503C - - Google Patents
Info
- Publication number
- DE300503C DE300503C DENDAT300503D DE300503DA DE300503C DE 300503 C DE300503 C DE 300503C DE NDAT300503 D DENDAT300503 D DE NDAT300503D DE 300503D A DE300503D A DE 300503DA DE 300503 C DE300503 C DE 300503C
- Authority
- DE
- Germany
- Prior art keywords
- steam
- air suction
- throttle
- air
- actuation
- 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.)
- Active
Links
- 238000009423 ventilation Methods 0.000 claims 2
- 230000001419 dependent Effects 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 210000000056 organs Anatomy 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 210000001138 Tears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type
- F04D9/065—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type the driving fluid being a gas or vapour, e.g. exhaust of a combustion engine
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Im Betriebe mit Kreiselpumpen kann es vorkommen, daß sich Luft'in der Pumpensaugeleitung ansammelt und die Wassersäule abreißt. Dies ist gefährlich, weil es zur Überschreitung der Höchstdrehzahl führen kann. Der vorliegenden Erfindung gemäß soll daher ein Dampfstrahlluftsauger verwendet werden, welcher die Luft aus dem Wasser absaugt, sobald die normale Drehzahl überschritten wird. Zu diesem Zweck soll ein Geschwindigkeitsregler bei Drehzahlüberschreitung die Dampfzufuhr zur Turbine drosseln und die vor und hinter diesem Drosselorgan auftretende Druckdifferenz dazu benutzt werden, die Dampfzufuhr zu einem Dampfstrahlsauger zu öffnen.In operations with centrifugal pumps it can happen that there is air in the pump suction line accumulates and tears off the water column. This is dangerous because it will lead to exceeding the maximum speed can. According to the present invention, therefore, a steam jet air extractor is intended to be used which sucks the air out of the water as soon as the normal speed is exceeded will. For this purpose, a speed controller should be used when the speed is exceeded throttle the steam supply to the turbine and the before and after this throttle element occurring pressure difference can be used to supply the steam to a Open the steam jet cleaner.
Im Ausführungsbeispiel Fig. 1 stellt T die Turbine, P die angetriebene Pumpe dar. Der Dampf tritt mit dem Drucke pl durch das Hauptabsperrorgan und das beispielsweise als Membrandruckregler ausgebildete Regulierorgan M in die Turbine.In the exemplary embodiment in FIG. 1, T represents the turbine, P the driven pump. The steam passes through the main shut-off element and the regulating element M, which is designed, for example, as a diaphragm pressure regulator, into the turbine at the pressure p l.
Bei Überschreitung der Höchstdrehzahl ζ. B. betätigt ein Fliehkraftregler R ein Drosselorgan, welches die Dampfzufuhr zur Turbine drosselt. Dadurch entsteht vor und hinter diesem Drosselorgan eine Druckdifferenz, welche dazu benutzt wird, ein Ventil V1 in der Dampfzuleitung W1 zum Dampfstrahlluftsauger L zu öffnen. Der Luftsauger tritt in dieser Dampfleitung entstehende Druck benutzt, um die Luftsaugeleitung W^ von der Pumpensaugeleitung S zum Luftsauger zu öffnen. Die in der Pumpensaugeleitung angesammelte Luft wird durch den Dampfstrahlluftsauger entfernt, so daß die Pumpe von neuem Wasser schöpfen kann. Durch die wiederansteigende Belastung sinkt die Drehzahl der Turbine. Der Regler R öffnet wieder das Drosselorgan D, die Druckdifferenz (P2 — Ps) verschwindet, und die Ventile V1 und F2 schließen ab.If the maximum speed is exceeded ζ. B. actuates a centrifugal governor R a throttle device, which throttles the steam supply to the turbine. This creates a pressure difference in front of and behind this throttle element, which is used to open a valve V 1 in the steam feed line W 1 to the steam jet air extractor L. The air suction occurs in this steam line resulting pressure used to open the air suction line W ^ from the pump suction line S to the air suction. The air that has accumulated in the pump suction line is removed by the steam jet air extractor so that the pump can draw new water. As the load increases again, the speed of the turbine decreases. The regulator R opens the throttle element D again, the pressure difference (P 2 - P s ) disappears, and the valves V 1 and F 2 close.
Fig..2 stellt ein Ausführungsbeispiel des Ventils V1 djir, Fig. 3 ein solches des Ven·- tils V2. Statt des Membrandruckreglers M kann selbstverständlich auch irgendein beliebiges, durch andere Mittel betätigtes Drosselorgan eingebaut werden.FIG. 2 shows an embodiment of the valve V 1 djir, FIG. 3 shows an embodiment of the valve V 2 . Instead of the diaphragm pressure regulator M , any desired throttle device operated by other means can of course also be installed.
Die Anordnung der benötigten Drosselorgane und Ventilekann bei gleicher Wirkung auch in anderer Reihenfolge als gezeichnet gewählt werden.The arrangement of the throttle elements and valves required can have the same effect can also be selected in a different order than drawn.
dadurch in Tätigkeit.thereby in action.
Gleichzeitig wird derAt the same time the
Claims (5)
Publications (1)
Publication Number | Publication Date |
---|---|
DE300503C true DE300503C (en) |
Family
ID=554494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT300503D Active DE300503C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE300503C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1258736B (en) * | 1962-05-30 | 1968-01-11 | Kloeckner Humboldt Deutz Ag | Venting device for centrifugal pumps, especially for portable power injectors |
-
0
- DE DENDAT300503D patent/DE300503C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1258736B (en) * | 1962-05-30 | 1968-01-11 | Kloeckner Humboldt Deutz Ag | Venting device for centrifugal pumps, especially for portable power injectors |
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