EP0355680A1 - Damping device for pulsating delivering pumps - Google Patents
Damping device for pulsating delivering pumps Download PDFInfo
- Publication number
- EP0355680A1 EP0355680A1 EP89115070A EP89115070A EP0355680A1 EP 0355680 A1 EP0355680 A1 EP 0355680A1 EP 89115070 A EP89115070 A EP 89115070A EP 89115070 A EP89115070 A EP 89115070A EP 0355680 A1 EP0355680 A1 EP 0355680A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- damping device
- pulsating
- pumps
- containers
- 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- Withdrawn
Links
Images
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
Definitions
- Pumps such as piston pumps, diaphragm pumps, peristaltic pumps and the like, deliver intermittently, which is problematic for many delivery tasks.
- Devices are known for damping the shocks and thus for equalizing the volume flow, in which the pressure shocks of the pump are compensated by a spring-loaded membrane.
- the main disadvantage is the cleaning and maintenance of the moving parts that have such devices.
- the object is achieved by a device which is characterized in that collapsible and gas-filled containers are arranged in a container which is closed on all sides and is provided with a feed line and a discharge line for the medium to be conveyed.
- the container can have a closure through which the containers are accessible.
- the container can also be provided with a pressure gauge and the collapsible containers can consist of air-filled foil bags.
- the device which can be manufactured inexpensively, is suitable, among other things, for operating chromatography columns. It evens out volume flows of up to 50 l / hour at pressures of up to 20 bar.
- a container 1 which is closed on all sides and whose cavity is accessible via a screw closure 4 has a feed line 2 and a discharge line 3 for the medium to be conveyed.
- a feed line 2 and a discharge line 3 for the medium to be conveyed.
- collapsible and gas-filled containers 5 e.g. air-filled foil bags arranged.
- 6 indicates a pressure gauge and 7 a sealing washer.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
- Reciprocating Pumps (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Pumpen, wie Kolbenpumpen, Membranpumpen, Schlauchpumpen und dergleichen fördern stoßweise, was für viele Förderaufgaben problematisch ist. Zum Dämpfen der Stöße und damit zum Vergleichmäßigen des Volumenstromes sind Vorrichtungen bekannt, bei denen die Druckstöße der Pumpe durch eine federbelastete Membran ausgeglichen werden. Nachteilig ist im wesentlichen die Reinigung und Wartung der bewegten Teile, die solche Vorrichtungen aufweisen.Pumps, such as piston pumps, diaphragm pumps, peristaltic pumps and the like, deliver intermittently, which is problematic for many delivery tasks. Devices are known for damping the shocks and thus for equalizing the volume flow, in which the pressure shocks of the pump are compensated by a spring-loaded membrane. The main disadvantage is the cleaning and maintenance of the moving parts that have such devices.
Es besteht demnach die Aufgabe, eine Vorrichtung zu schaffen, die einfach in ihrem Aufbau ist und insbesondere keine bewegten Teile aufweist.It is therefore the task of creating a device which is simple in construction and in particular has no moving parts.
Die Aufgabe wird durch eine Vorrichtung gelöst, die dadurch gekennzeichnet ist, daß in einem allseits geschlossenen Behälter, der mit einer Zuleitung und einer Ableitung für das zu fördernde Medium versehen ist, kollabierbare und mit Gas gefüllte Behältnisse angeordnet sind.The object is achieved by a device which is characterized in that collapsible and gas-filled containers are arranged in a container which is closed on all sides and is provided with a feed line and a discharge line for the medium to be conveyed.
Der Behälter kann einen Verschluß aufweisen, über den die Behältnisse zugänglich sind. Der Behälter kann ferner mit einem Druckmesser versehen sein und die kollabierbaren Behältnisse können aus mit Luft gefüllten Foliensäcken bestehen.The container can have a closure through which the containers are accessible. The container can also be provided with a pressure gauge and the collapsible containers can consist of air-filled foil bags.
Die Vorrichtung, die preiswert hergestellt werden kann, eignet sich unter anderem zum Betreiben von Chromatographiesäulen. Sie vergleichmäßigt Volumenströme von bis zu 50 l/Stunde bei Drücken von bis zu 20 bar.The device, which can be manufactured inexpensively, is suitable, among other things, for operating chromatography columns. It evens out volume flows of up to 50 l / hour at pressures of up to 20 bar.
Im folgenden wird die Vorrichtung anhand von lediglich einen Ausführungsweg darstellenden Zeichnung näher erläutert. Die Figur zeigt die Vorrichtung perspektivisch.In the following, the device is explained in more detail with the aid of a drawing representing only one embodiment. The figure shows the device in perspective.
Ein allseits geschlossenen Behälter 1, dessen Hohlraum über einen Schraubverschluß 4 zugänglich ist, weist eine Zuleitung 2 und eine Ableitung 3 für das zu fördernde Medium auf. Im Innenraum des Behälters 1 sind kollabierbare und mit Gas gefüllte Behältnisse 5, z.B. mit Luft gefüllte Foliensäcke angeordnet. 6 deutet einen Druckmesser und 7 eine Dichtscheibe an.A container 1 which is closed on all sides and whose cavity is accessible via a screw closure 4 has a feed line 2 and a discharge line 3 for the medium to be conveyed. In the interior of the container 1 there are collapsible and gas-filled containers 5, e.g. air-filled foil bags arranged. 6 indicates a pressure gauge and 7 a sealing washer.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8810454U DE8810454U1 (de) | 1988-08-18 | 1988-08-18 | Vorrichtung zum Dämpfen von stoßweise fördernden Pumpen |
DE8810454U | 1988-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0355680A1 true EP0355680A1 (en) | 1990-02-28 |
Family
ID=6827020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89115070A Withdrawn EP0355680A1 (en) | 1988-08-18 | 1989-08-16 | Damping device for pulsating delivering pumps |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0355680A1 (en) |
JP (1) | JPH0285596A (en) |
DE (1) | DE8810454U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431770A1 (en) * | 1993-09-07 | 1995-03-09 | Walbro Corp | Pressure pulse damper |
EP0865829A3 (en) * | 1995-01-09 | 1998-12-02 | Campbell Hausfeld/Scott Fetzer Company | Airless paint sprayer intake dampener |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR66705E (en) * | 1954-06-03 | 1957-08-19 | P Berthoud Ets | Liquid pump operated by an agricultural tractor or the like |
US3212602A (en) * | 1962-06-13 | 1965-10-19 | Newport News S & D Co | Noise attenuation apparatus for liquid conducting conduits |
DE1703951A1 (en) * | 1968-08-03 | 1972-02-24 | Netzsch Maschinenfabrik | Air chamber with a device for supplying compressed gas |
WO1984000797A1 (en) * | 1982-08-09 | 1984-03-01 | Rast Pty Ltd W | Method of and means for absorbing pressure shocks |
-
1988
- 1988-08-18 DE DE8810454U patent/DE8810454U1/de not_active Expired
-
1989
- 1989-08-16 EP EP89115070A patent/EP0355680A1/en not_active Withdrawn
- 1989-08-17 JP JP1210817A patent/JPH0285596A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR66705E (en) * | 1954-06-03 | 1957-08-19 | P Berthoud Ets | Liquid pump operated by an agricultural tractor or the like |
US3212602A (en) * | 1962-06-13 | 1965-10-19 | Newport News S & D Co | Noise attenuation apparatus for liquid conducting conduits |
DE1703951A1 (en) * | 1968-08-03 | 1972-02-24 | Netzsch Maschinenfabrik | Air chamber with a device for supplying compressed gas |
WO1984000797A1 (en) * | 1982-08-09 | 1984-03-01 | Rast Pty Ltd W | Method of and means for absorbing pressure shocks |
Non-Patent Citations (1)
Title |
---|
AIR CONDITIONING HEATING AND VENTILATING, Band 54, Nr. 11, November 1957, Seite 116; "Water shock arrestor" * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431770A1 (en) * | 1993-09-07 | 1995-03-09 | Walbro Corp | Pressure pulse damper |
DE4431770C2 (en) * | 1993-09-07 | 1998-07-02 | Walbro Corp | Pressure pulse damper |
EP0865829A3 (en) * | 1995-01-09 | 1998-12-02 | Campbell Hausfeld/Scott Fetzer Company | Airless paint sprayer intake dampener |
Also Published As
Publication number | Publication date |
---|---|
DE8810454U1 (de) | 1988-09-29 |
JPH0285596A (en) | 1990-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19900731 |