EP2681451A1 - Doppel-schlauchmembran-prozesspumpe - Google Patents
Doppel-schlauchmembran-prozesspumpeInfo
- Publication number
- EP2681451A1 EP2681451A1 EP12721726.3A EP12721726A EP2681451A1 EP 2681451 A1 EP2681451 A1 EP 2681451A1 EP 12721726 A EP12721726 A EP 12721726A EP 2681451 A1 EP2681451 A1 EP 2681451A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valves
- delivery
- cassette
- hydraulic cylinder
- feed
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012423 maintenance Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 12
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010349 pulsation 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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/084—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular member being deformed by stretching or distortion
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/10—Pumps having fluid drive
- F04B43/107—Pumps having fluid drive the fluid being actuated directly by a piston
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/10—Pumps having fluid drive
- F04B43/113—Pumps having fluid drive the actuating fluid being controlled by at least one valve
Definitions
- the invention relates to a double-tube membrane process pump with conveyor valves arranged in cassettes.
- Double-tube membrane process pumps are described in more detail, for example, in Heinz M. Nägel, "Hermetically sealed positive displacement pumps", ISBN978-3-00-030685-3, pages 39 to 42.
- a flexible double-tube membrane is used as the membrane, which by a In the pump gearbox, the rotation of the drive motor is converted by means of a crank mechanism into a translational movement of the crosshead which is connected to the piston.
- the piston moves the hose membrane pair via a hydraulic feed liquid Pair causes a change in the internal volume and thus the displacement of the medium.
- Heinz M. Nägel, aao, p. 62 describes the cassette construction of the valves.
- This can be removed with a few simple steps and without special tools to check, for example, the internal parts, such as valve seats and valve balls, or change.
- This cartridge design significantly reduces maintenance and maintenance time by eliminating the need to remove pipes and pulsation dampeners prior to removing the valve from traditionally flanged valves.
- additional Ausschwenkvorraumen be used for larger valves.
- the disassembly is problematic, especially in high-pressure pumps, because for each valve inspection, whether it is the suction or pressure side valves, previously the suction or the pressure side connection line must be solved, which with a considerable Effort is connected.
- high-pressure pumps in particular, up to 12 M42 screws must be loosened for this purpose.
- angle valves that are freely accessible from above.
- angle valves have the disadvantage that they wear because of the flow deflection unilaterally.
- the delivery valves represent the only wearing part of the double-tube membrane process pumps, however, the time required for the maintenance of the delivery valves is relatively large.
- DE 43 27 549 A1 describes a method for producing a ceramic plunger, wherein a sleeve-shaped ceramic plunger part is clamped axially between an adapter part for connecting a plunger drive and a head part screwed to a tie rod.
- a closure for housing openings in piston pumps is described in which an inner lid and a pressure member for the latter and a loading device for the latter are used.
- the loading device has a pressure spring arranged between the pressure element and an abutment, and a release device is provided for generating a force acting against the force of the compression spring.
- the object of the invention is thus to facilitate the expansion of the delivery valves in double-tube membrane process pumps and to accelerate.
- a Ausschwenkvorraum is provided, with which the delivery valves are respectively connected and to which they are hinged from an operating position in which they are axially centered in the cassette, in a Maintenance s position in which they are pivoted out of the cassette, are pivotable, with a hydraulically activated clamping device is provided for biasing the delivery valve or the delivery valves in the operating position to the required sealing pressure.
- the delivery valves in the operating position can be biased so that the necessary sealing pressure is achieved. Subsequently, the respective delivery valve (or superimposed conveyor valves) is fixed in this position, for example by means of screws.
- a preferred embodiment of the invention is that below or above the delivery valves or a hydraulic cylinder with a delivery valve or the delivery valves facing piston is arranged, which is acted upon by a hydraulic connection with pressure.
- a development of the invention is that the hydraulic cylinder by means of a pump, preferably a hand pump is pressurized.
- An embodiment of the invention is that in the region of the screw connection between the hydraulic cylinder and an adjacent flange of the cassette springs, preferably disc springs, are provided for resetting the hydraulic cylinder.
- These springs which are arranged in the region of the attachment of the hydraulic cylinder, allow the hydraulic cylinder moves axially so far that the delivery valves can be swung out.
- 1 is a double-tube membrane process pump with inventively designed delivery valves
- 6a and 6b is a sectional view of the hydraulically activated clamping device.
- the delivery valves 1 of a double-tube membrane process pump are mounted in cassettes 2, which consist of two mutually spaced apart flanges 3, which are arranged by at least two permanent support tubes 4a, in which expansion screws, and at least a further expansion screw 4b, which has no support tube, are interconnected.
- the delivery valves 1 are formed in the present case as double valves.
- a Ausschwenkvorraum 5 is provided with each of the delivery valves 1 are connected and to which they are hinged axially from the operating position in the hinge Cassette 2 in a maintenance s position outside the cassette 2 can be swung out.
- Fig. 2 shows the delivery valves 1 in the swung-out position in which, for example, a valve inspection or even an exchange of parts of the delivery valves 1 can take place.
- the Ausschwenkvortechnisch 5 has two nuts 6, which serve to raise the Ausschwenkvortechnisch 5 to the delivery valves 1, to provide a space for swiveling.
- Fig. 2 the hydraulic cylinder 8 is shown below the delivery valve 1, which can be acted upon by the hydraulic connection 7 with pressure. Also, the screws 9 can be seen in the region of the lower flange 3, which serve to fix the position of the delivery valve 1. You are in Fig. 2 in the released position.
- Fig. 3 the delivery valves 1 are shown in the pivoted state.
- Fig. 4 shows that the expansion screw 4b, which had to be removed for swinging the delivery valves 1, again arranged in its original position and fixed to the flanges 3.
- a pump (which may be a hand pump) is connected to the hydraulic connection and the hydraulic cylinder 8 is pressurized, whereby a hydraulic pressure, which depends on the device specification and may for example be 700 bar, is built up.
- the piston of the hydraulic cylinder 8 moves downwardly and thereby the arranged on the hydraulic cylinder 8 delivery valves 1 are biased in the axial direction to the sealing pressure against the maximum pump internal pressure, so that there is a stroke H, for example, 5 to 10 mm in height.
- FIGS. 6a and 6b show two sectional views of a hydraulic cylinder 8. It can be seen that the pressure applied via the hydraulic connection 7 presses the annular piston 10 downwards, whereby the delivery valve 1 arranged on the hydraulic cylinder 8 and the delivery valves 1 upwards be pressed.
- the stroke H is about 10 mm.
- the plate springs 11 can be seen, which are arranged in the region of the screw connection between the hydraulic cylinder 8 and the adjacent flange 3 and ensure that the hydraulic cylinder 8 can move so far that the delivery valves 1 can be swung out of the cassette 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110001087 DE102011001087A1 (de) | 2011-03-04 | 2011-03-04 | Doppel-Schlauchmembran-Prozeßpumpe |
PCT/DE2012/100053 WO2012119597A1 (de) | 2011-03-04 | 2012-03-02 | Doppel-schlauchmembran-prozesspumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2681451A1 true EP2681451A1 (de) | 2014-01-08 |
EP2681451B1 EP2681451B1 (de) | 2015-10-28 |
Family
ID=46124248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12721726.3A Active EP2681451B1 (de) | 2011-03-04 | 2012-03-02 | Doppel-schlauchmembran-prozesspumpe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2681451B1 (de) |
DE (1) | DE102011001087A1 (de) |
WO (1) | WO2012119597A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013108672A1 (de) | 2013-08-09 | 2015-02-12 | Aker Wirth Gmbh | Verdrängerpumpe |
US20160348656A1 (en) * | 2015-06-01 | 2016-12-01 | Caterpillar Inc. | Support system for a pump |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6913917U (de) * | 1969-04-05 | 1969-08-21 | Masch Und Bohrgeraete Fabrik | Fluessigkeits-kolbenpumpe mit kurbeltrieb |
DE7303301U (de) * | 1973-01-30 | 1974-04-04 | Feluwa Schlesiger & Co Kg | Membran-Kolbenpumpe |
DE20321039U1 (de) * | 1980-06-12 | 2005-10-13 | Feluwa Pumpen Gmbh | Schlauchmembran-Kolbenpumpe |
DE8207937U1 (de) * | 1982-03-20 | 1983-09-01 | Nägel, Heinz M., 5568 Daun | Membran-verdraengerpumpe |
DE3235316C1 (de) * | 1982-09-24 | 1984-01-05 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz | Verschluss fuer Gehaeuse-OEffnungen bei Kolbenpumpen |
DE4327549A1 (de) * | 1993-08-17 | 1995-02-23 | Uraca Pumpen | Verfahren zur Herstellung eines Keramikplungers für Pumpen u. dgl. |
ATE316208T1 (de) * | 2003-10-01 | 2006-02-15 | Feluwa Pumpen Gmbh | Schlauchmembran-kolbenpumpe |
-
2011
- 2011-03-04 DE DE201110001087 patent/DE102011001087A1/de not_active Ceased
-
2012
- 2012-03-02 WO PCT/DE2012/100053 patent/WO2012119597A1/de active Application Filing
- 2012-03-02 EP EP12721726.3A patent/EP2681451B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012119597A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2681451B1 (de) | 2015-10-28 |
WO2012119597A1 (de) | 2012-09-13 |
DE102011001087A1 (de) | 2012-09-06 |
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