EP1416158A1 - Pumpe mit Filter - Google Patents
Pumpe mit Filter Download PDFInfo
- Publication number
- EP1416158A1 EP1416158A1 EP03103981A EP03103981A EP1416158A1 EP 1416158 A1 EP1416158 A1 EP 1416158A1 EP 03103981 A EP03103981 A EP 03103981A EP 03103981 A EP03103981 A EP 03103981A EP 1416158 A1 EP1416158 A1 EP 1416158A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- chamber
- pumping
- plunger
- pump according
- 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
- 239000007787 solid Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims description 15
- 239000012141 concentrate Substances 0.000 claims description 9
- 238000011001 backwashing Methods 0.000 claims description 4
- 235000008504 concentrate Nutrition 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000014666 liquid concentrate Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
Definitions
- the invention also designates a pump, preferably a drilling water pump a reciprocating pump means and a filter.
- Pseudo-continuous pumps take over in a first work cycle resiliently biased inlet valve a fluid in a pump chamber to this finally compress in a second cycle and via an outlet valve issue.
- drilling water pumps take heavily mixed solids Drilling water at low pressure and put both filtered at separate outlets Drilling water as well as drilling water concentrated with solids under higher pressures to disposal. Due to the strong solid content in the drilling water is a regular Backwashing the filter is necessary to avoid permanent clogging.
- a multi-cascaded, reciprocating piston is one Piston pump designed as a filter piston made of porous metal, which compresses at the same time and cleans. Such a construction is unsuitable for heavily contaminated fluids. Of It is also not possible to backwash the filter.
- the object of the invention is to implement a filtering pump for strong Solid fluids. Another aspect is the reliable sealing of the Pumping chamber.
- a pump for liquids contaminated with solids has a Pump drive at least one in a pump chamber with an inlet valve, a filter and an outlet valve fluidly reciprocable pump means, which with a plunger is drivably connected, the plunger being movable radially back and forth stored and in a pump drive rotatable about an axis in a radially circumferential changeable guide contour is radially positively mounted.
- the plunger is advantageously guided in a form-fitting manner via a roller bearing in the guide contour, thereby avoiding sliding friction.
- the pump means advantageously has an elastically deformable pump membrane, which the Pump chamber partially free of sliding movement and partially flow-tight, thus creating a disadvantageous sliding movement of the pump means can be avoided by the abrasive solids.
- the pump chamber is advantageously a concentrate outlet via a concentrate outlet valve assigned, which is further advantageously controllable by a radial stop of the ram is, whereby an emptying of the concentrate enriched with solids is possible.
- the pumping chamber can advantageously flow through a spring-loaded backwashing chamber assigned which, when the pump chamber relaxes, backwashes the filter causes.
- Exactly three pumping chambers with associated pumping means and filters are advantageous in each case available, which are further advantageously arranged circumferentially by 120 ° in the pump drive, which minimizes the resulting radial forces on the pump drive.
- the pump chamber 4 is a concentrate outlet 13 via a Concentrate outlet valve 14 assigned by a radial stop 15 of the Ram 10 is controllable.
- the pump chamber 4 is a spring-loaded Backwash chamber 16 assigned to flow through. There are exactly three pumping chambers 4 with assigned pump means 8 and filters 6, which are circumferentially offset by 120 ° are arranged.
- the plunger 10 coexists at the top dead center of this movement the radial stop 15 on the concentrate outlet valve 14 and forcibly opens this, whereby the liquid concentrate enriched in solids enters the concentrate outlet 13 arrives.
- This relaxation causes the exhaust valve to close in the fifth step 7 and with the now excessive pressure of the backwash chamber 16 backwashing the Liquid 2 through the filter 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
- Fig. 1
- Einen Längsschnitt durch eine Pumpe gemäss den Linien I-I in Fig. 2A und Fig. 2B;
- Fig. 2A
- einen Querschnitt gemäss Linie IIA - IIA in Fig. 1; und
- Fig. 2B
- einen Querschnitt gemäss Linie IIB - IIB in Fig. 1.
Claims (7)
- Pumpe für mit Feststoffen verunreinigte Flüssigkeiten (2) mit einem Pumpantrieb (3) mit zumindest einem, in einer Pumpkammer (4) mit einem Einlassventil (5), einem Filter (6) und einem Auslassventil (7) strömungsdicht hin- und herbewegbaren Pumpmittel (8), welches mit einem Stössel (10) antreibbar verbunden ist, dadurch gekennzeichnet, dass der Stössel (10) radial hin- und herbewegbar gelagert sowie in einem um eine Achse (A) drehbaren Pumpantrieb (3) in einer umfänglich radial veränderlichen Führungskontur (11) radial formschlüssig gelagert ist.
- Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass der Stössel (10) in der Führungskontur (11) formschlüssig über ein Rolllager (12) geführt ist.
- Pumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Pumpmittel (8) eine elastisch deformierbare Pumpmembran (9) aufweist, welche die Pumpkammer (4) gleitbewegungsfrei sowie strömungsdicht teilweise begrenzt.
- Pumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Pumpkammer (4) ein Konzentratauslass (13) über ein Konzentratauslassventil (14) durchströmbar zugeordnet ist, welches optional durch einen Radialanschlag (15) des Stössels (10) steuerbar ist.
- Pumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Pumpkammer (4) eine federnd vorgespannte Rückspülkammer (16) durchströmbar zugeordnet ist.
- Pumpe einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass jeweils mehrere Pumpkammern (4) mit zugeordneten Pumpmitteln (8) und Filtern (6) vorhanden sind.
- Pumpe nach Anspruch 6, dadurch gekennzeichnet, dass jeweils genau drei Pumpkammern (8) mit zugeordneten Pumpmitteln (8) und Filtern (6) vorhanden sind, die optional umfänglich um 120° angeordnet sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002150241 DE10250241A1 (de) | 2002-10-29 | 2002-10-29 | Pumpe mit Filter |
| DE10250241 | 2002-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1416158A1 true EP1416158A1 (de) | 2004-05-06 |
| EP1416158B1 EP1416158B1 (de) | 2005-09-07 |
Family
ID=32087259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20030103981 Expired - Lifetime EP1416158B1 (de) | 2002-10-29 | 2003-10-28 | Pumpe mit Filter |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1416158B1 (de) |
| DE (2) | DE10250241A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3354786A (en) * | 1960-12-21 | 1967-11-28 | Chamberlain Ind Ltd | Hydraulic motors |
| US3915071A (en) * | 1972-07-28 | 1975-10-28 | Linde Ag | Piston for hydrostatic machines |
| US3945303A (en) * | 1973-10-10 | 1976-03-23 | Sulzer Brothers Ltd. | Hydrostatic piston machine |
| US4216704A (en) * | 1976-11-26 | 1980-08-12 | Linde Aktiengesellschaft | Piston for a hydrostatic axial-piston machine |
| US6318241B1 (en) * | 2000-02-28 | 2001-11-20 | Sauer-Danfoss Inc. | Piston for a hydrostatic cylinder block |
-
2002
- 2002-10-29 DE DE2002150241 patent/DE10250241A1/de not_active Withdrawn
-
2003
- 2003-10-28 EP EP20030103981 patent/EP1416158B1/de not_active Expired - Lifetime
- 2003-10-28 DE DE50301137T patent/DE50301137D1/de not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3354786A (en) * | 1960-12-21 | 1967-11-28 | Chamberlain Ind Ltd | Hydraulic motors |
| US3915071A (en) * | 1972-07-28 | 1975-10-28 | Linde Ag | Piston for hydrostatic machines |
| US3945303A (en) * | 1973-10-10 | 1976-03-23 | Sulzer Brothers Ltd. | Hydrostatic piston machine |
| US4216704A (en) * | 1976-11-26 | 1980-08-12 | Linde Aktiengesellschaft | Piston for a hydrostatic axial-piston machine |
| US6318241B1 (en) * | 2000-02-28 | 2001-11-20 | Sauer-Danfoss Inc. | Piston for a hydrostatic cylinder block |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10250241A1 (de) | 2004-05-13 |
| DE50301137D1 (de) | 2005-10-13 |
| EP1416158B1 (de) | 2005-09-07 |
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