DE102013000129A1 - Method for locking access between chamber with fluid and environment e.g. gas, in centrifugal pump, involves forcing fluid back to disk during decreasing of rotational speed, where overpressure exists in fluid with respect to environment - Google Patents
Method for locking access between chamber with fluid and environment e.g. gas, in centrifugal pump, involves forcing fluid back to disk during decreasing of rotational speed, where overpressure exists in fluid with respect to environment Download PDFInfo
- Publication number
- DE102013000129A1 DE102013000129A1 DE201310000129 DE102013000129A DE102013000129A1 DE 102013000129 A1 DE102013000129 A1 DE 102013000129A1 DE 201310000129 DE201310000129 DE 201310000129 DE 102013000129 A DE102013000129 A DE 102013000129A DE 102013000129 A1 DE102013000129 A1 DE 102013000129A1
- Authority
- DE
- Germany
- Prior art keywords
- liquid
- fluid
- chamber
- overpressure
- rotor
- 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.)
- Withdrawn
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/059—Roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/14—Shaft sealings operative only when pump is inoperative
- F04D29/143—Shaft sealings operative only when pump is inoperative especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren und der dazugehörigen Vorrichtung zum Sperren des Zugangs zwischen einer Kammer mit Flüssigkeit und der Umgebung als Gas oder Vakuum.The invention relates to a method and the associated device for blocking the access between a chamber with liquid and the environment as gas or vacuum.
Vorrichtungen, die diesen Zweck erfüllen, sind bekannt, wie z. B. die Simmerringe oder Lippendichtungen, die mittels eines elastischen Teils auf die Welle drucken und so das Fliessen vom Gas oder Flüssigkeit dadurch verhindern. Diese Vorrichtungen haben aber einen großen Nachteil, den Sie erzeugen Reibungswärme, die mit steigender Drehzahl einen Dauerbetrieb nicht zulassen. Außerdem verursachen diese Verluste unnötige Energiekosten.Devices that fulfill this purpose are known, such. As the Simmerrings or lip seals that print by means of an elastic member on the shaft and thus prevent the flow of gas or liquid thereby. But these devices have a big disadvantage, they generate frictional heat, which does not allow continuous operation with increasing speed. In addition, these losses cause unnecessary energy costs.
Bei zentrifugalen Pumpen ist das Prinzip der Abdichtung mittels Zentrifugalkraft zwischen Flüssigkeit befindlich in Kammern und dem umgebenden Gas bekannt; dabei werden Sperrscheibendichtungen der umlaufenden Flüssigkeit für die Abdichtung beim Wellenaustritt der Pumpe benutzt – Henschel Werke Kassel –. Diese Art der Abdichtung ist zwar wirksam, aber erzeugt mit steigender Drehzahl einen zunehmenden Überdruck; dieser Überdruck ist nicht konstant und ergibt eine unsichere Abdichtung und stört viele Anwendungen, wo unkontrollierbarer Überdrück unerwünscht ist.In centrifugal pumps, the principle of centrifugal force sealing between liquid in chambers and the surrounding gas is known; Here are locking disc seals of the circulating fluid used for sealing the shaft outlet of the pump - Henschel works Kassel -. Although this type of seal is effective, but generates with increasing speed an increasing overpressure; this overpressure is not constant and gives an unsafe seal and interferes with many applications where uncontrollable overpressure is undesirable.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Abdichtung einer Flüssigkeitskammer von der Gas- oder Vakuum-Umgebung beim Austritt einer schnellaufenden Welle zu erreichen, wobei der Druck in der Kammer praktisch konstant gehalten wird und zwar unabhängig von der Drehzahl der rotierenden Teile. Folgende Vorteile ergeben sich:
- – extrem niedrige Reibungsverluste im ganzen Drehzahlbereich und dadurch keine nennenswerte Wärmeentwicklung
- – sehr vereinfachte Montage des Aggregats Kugellager/Sperrvorrichtung, da nur die Toleranzen für die Kugellagermontage berücksichtigt werden müssen
- – flache Ausführung aus Metall, das mit Lot eine zuverlässige flächendeckende Verbindung mit dem Kugellager aufweist
- – die Vorrichtung ist wartungsfrei
- – wichtiger Nebeneffekt: die Sperrvorrichtung entwickelt deutlich weniger Wärme als das Kugellager und somit kühlt sie das angegliederte Kugellager zusätzlich ab und führt so zur Erhöhung seiner Grenzdrehzahl.
- - Extremely low friction losses in the entire speed range and therefore no significant heat development
- - Very simplified assembly of the unit ball bearing / locking device, since only the tolerances for the ball bearing assembly must be considered
- - Flat design made of metal, which has a reliable area-wide connection with the ball bearing with solder
- - The device is maintenance-free
- - important side effect: the locking device develops significantly less heat than the ball bearing and thus it also cools the attached ball bearing and thus leads to increase its limit speed.
Ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung ist in der Zeichnung dargestellt und wird im Folgenden näher erläutert.An embodiment of the device according to the invention is shown in the drawing and will be explained in more detail below.
Es zeigt:It shows:
Aufgrund der Figur wird die Funktion näher erläutert.Due to the figure, the function is explained in detail.
Es gibt eine zentrifugal beschleunigte Flüssigkeitsscheibe
Der Außendruck der Gas- oder Vakuumumgebung ist beim Stillstand in etwa auch in der Kammer
Ein Rotor
Die Außenwand
Beim Drehen des Rotors
Die Flüssigkeitsscheibe
Die Flüssigkeit, die das Labyrinth, bestehend aus dem Zylinder
Der Überdruck erzeugt von der Flüssigkeitsscheibe
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310000129 DE102013000129A1 (en) | 2012-10-16 | 2013-01-05 | Method for locking access between chamber with fluid and environment e.g. gas, in centrifugal pump, involves forcing fluid back to disk during decreasing of rotational speed, where overpressure exists in fluid with respect to environment |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012020315.2 | 2012-10-16 | ||
DE102012020315 | 2012-10-16 | ||
DE201310000129 DE102013000129A1 (en) | 2012-10-16 | 2013-01-05 | Method for locking access between chamber with fluid and environment e.g. gas, in centrifugal pump, involves forcing fluid back to disk during decreasing of rotational speed, where overpressure exists in fluid with respect to environment |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013000129A1 true DE102013000129A1 (en) | 2014-04-17 |
Family
ID=50383274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201310000129 Withdrawn DE102013000129A1 (en) | 2012-10-16 | 2013-01-05 | Method for locking access between chamber with fluid and environment e.g. gas, in centrifugal pump, involves forcing fluid back to disk during decreasing of rotational speed, where overpressure exists in fluid with respect to environment |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102013000129A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106195279A (en) * | 2016-09-12 | 2016-12-07 | 新疆广汇中化能源技术开发有限公司 | Rotatable radiation bed |
WO2023186364A1 (en) * | 2022-03-29 | 2023-10-05 | Robert Bosch Gmbh | Side channel compressor for a fuel cell system for conveying and/or compressing a gaseous medium, and fuel cell system |
-
2013
- 2013-01-05 DE DE201310000129 patent/DE102013000129A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106195279A (en) * | 2016-09-12 | 2016-12-07 | 新疆广汇中化能源技术开发有限公司 | Rotatable radiation bed |
CN106195279B (en) * | 2016-09-12 | 2024-04-26 | 新疆广汇煤炭清洁炼化有限责任公司 | Rotary radiation bed |
WO2023186364A1 (en) * | 2022-03-29 | 2023-10-05 | Robert Bosch Gmbh | Side channel compressor for a fuel cell system for conveying and/or compressing a gaseous medium, and fuel cell system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |