EP1540178A1 - Dispositif d'amplification hydraulique pour un systeme de pompage a haute pression - Google Patents
Dispositif d'amplification hydraulique pour un systeme de pompage a haute pressionInfo
- Publication number
- EP1540178A1 EP1540178A1 EP03761662A EP03761662A EP1540178A1 EP 1540178 A1 EP1540178 A1 EP 1540178A1 EP 03761662 A EP03761662 A EP 03761662A EP 03761662 A EP03761662 A EP 03761662A EP 1540178 A1 EP1540178 A1 EP 1540178A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- assembly
- cylinder
- piston
- chambers
- amplification device
- 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- Withdrawn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
- 230000003321 amplification Effects 0.000 title claims abstract description 34
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 34
- 238000005086 pumping Methods 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 62
- 230000000712 assembly Effects 0.000 claims description 24
- 238000000429 assembly Methods 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000000750 progressive effect Effects 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 abstract 1
- 239000013535 sea water Substances 0.000 description 15
- 239000012528 membrane Substances 0.000 description 8
- 238000001223 reverse osmosis Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
- F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
- F04B9/115—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
Definitions
- the present invention relates to the arrangements of differential hydraulic volu metric pumps making it possible to amplify the hydraulic outlet pressure for the purposes of use for water purification and more particularly for the production of drinking water from salt water using a reverse osmosis membrane treatment chamber. DESCRIPTION OF THE PRIOR ART
- reverse osmosis membrane usable for desalinating seawater or for the concentration of fruit juice is well known but will be recalled below only for the requirement of the membrane to be fed by a system pumping can deliver continuously and in a circuit through which it passes, a volume of water at a high flow rate and at a high pressure.
- these reverse osmosis membrane treatment chambers are supplied from low pressure liquid sources (sea water for example) by high pressure low pressure pumps fitted with a hydraulic amplification device allowing to deliver at output the high pressure flow necessary for the implementation of the principle of reverse osmosis of the membrane.
- a low pressure liquid supply assembly Pb a so-called cylinder-piston assembly supplied by the low pressure liquid supply assembly Pb and supplying a high pressure liquid Ph at output, a so-called use of the pressure amplified hydraulic system Ph of the liquid leaving the pumping system,
- a switching assembly for controlling the operation of the hydraulic amplification device of the entire pumping system so as to produce at the outlet and towards the above set of use, a high pressure liquid Ph.
- the low pressure liquid supply assembly Pb can be constituted by sea water withdrawn by a low pressure pump.
- the cylinder-piston assembly is generally of the type which is in the form of two fixed cylinders arranged in opposition along the axis of movement of two mobile pistons moving together but each in one of the two cylinders which it separates in two rooms . These two pistons push in their reciprocating movements along said axis of movement, at least one rod developing a surface less than the surface of the pistons in a ratio corresponding to the ratio
- the set of hydraulic pressure use amplified liquid leaving the pumping system can be constituted by the membrane treatment chamber operating according to the principle of reverse osmosis.
- the low pressure liquid evacuation assembly Pb allows the low pressure liquid necessary for the operation of the cylinder-piston assembly to be discharged to the outside.
- connection assembly is generally constituted by a circuit of conduits ensuring the circulation of the liquid between the supply assembly, the use assembly, the evacuation assembly, and the four chambers of said defined cylinder-piston assembly. in the two cylinders by the two pistons. At least one light is provided in each of these chambers to operate, according to the forward or return position of movement of the rod-piston assembly and via appropriate switching elements, alternately in suction or in discharge.
- the switching assembly is generally constituted by switching elements (valves, flaps, valves, valves, drawers, etc.) interposed on the conduits of the connection assembly and capable of assuming the change of state "open “to” closed “and vice versa, the lights of the four chambers to make them pass from the" admission “position to the” discharge "position.
- the changes of state of these switching elements are often controlled by detectors of the end positions of the two pistons inside one of the two cylinders, thus making it possible to automatically control the operation of the hydraulic amplification device of the whole of the pumping system supplied in this case with sea water by the low pressure pump in order to deliver at the outlet and towards the aforesaid treatment chamber with reverse osmosis membrane, the same sea water but under high pressure Ph.
- a liquid pressurization pump comprising three pistons mounted movable in translation in three aligned chambers in which the third piston fixed to the connecting shaft of the three pistons is sliding in a chamber intended to receive a hydraulic fluid supplied by a central unit via a hydraulic distributor which ensures the control and the drive of said connecting shaft of the three pistons.
- an installation comprising two pumps but always associated with a hydraulic unit which ensures the control and the drive of the two connecting shafts of the two pumps. The purpose of this installation is in particular to operate the two pumps simultaneously in order to produce a double flow output under the control of a single hydraulic power station. This installation is complex because it requires the presence of a hydraulic control unit and is therefore more suitable for high-flow industrial installations.
- the hydraulic amplification device for a high pressure pumping system of the type comprising at least: a low pressure liquid supply assembly Pb, - a so-called cylinder-piston assembly in the form of two fixed cylinders arranged in opposition along the axis of movement of two mobile pistons which, evolving together but each in one of the two cylinders which it separates into two chambers, push in their reciprocating movements along of said axis of movement, at least one rod developing a surface area less than the surface of the pistons in a ratio corresponding to the ratio Ph / Pb between the low pressure Pb of the intake liquid and the high pressure Ph of the discharge liquid of the pumping system , an assembly known as of use of the amplified hydraulic pressure of the liquid leaving the pumping system,
- connection assembly ensuring the circulation of the liquid between the supply assembly, the use assembly, the evacuation assembly, and the various components of said cylinder-piston assembly and the four chambers of said cylinder-piston assembly fitted for this purpose each of at least one light to operate alternately in suction or discharge depending on the forward or return position of displacement of the rod-piston assembly, and a switching assembly which, by passing the lights of the four chambers from the "intake” position to the "discharge” position and conversely, makes it possible to control the operation of the hydraulic amplification device of the entire pumping system so as to produce at the outlet and towards the above-mentioned assembly of use, a high pressure liquid Ph, is remarkable in that: d firstly, the above high-pressure pumping system consists of a second parallel cylinder-piston assembly connected to the first main cylinder-piston assembly of identical design to the first in the form of two fixed cylinders arranged in opposition along a second axis of movement and two movable pistons which, pushing together in
- the eight chambers of said two main and parallel cylinder-piston assemblies are coupled in pairs so that each conduit opening into two chambers of the main cylinder-piston assembly opens into the two similar chambers of the assembly.
- parallel cylinder-piston and always conveys a liquid at the same pressure to or from at least one chamber.
- the difference in offset of the reversal moments between the two rod-piston assemblies cLu cylinder-main piston and of the parallel cylinder can correspond to part or all of the time of the stroke said piston-cylinder between the two ends of the chambers.
- This difference in offset will be judiciously adapted by those skilled in the art to assume a more or less flexible operation of the amplification device.
- the fact that the time delay is canceled it is possible to envisage both switching elements with opening and closing movements all or nothing as well as switching elements with progressive opening and closing movements such as for example drawer switching elements.
- Figure 1 is a schematic view of an embodiment of a hydraulic amplification device of a high pressure pumping system of conventional design.
- Figure 2 is a schematic view of an embodiment of a hydraulic amplification device of a high pressure pumping system according to the concept of one invention. DESCRIPTION OF THE PREFERRED EMBODIMENTS
- the purpose of the high-pressure pumping system I is to produce drinking water from seawater, conventionally comprises the assemblies listed below.
- the first is an assembly 100 for supplying low pressure liquid Pb consisting essentially of a low pressure pump and making it possible to take up sea water.
- the second is a cylinder-piston assembly 200 in the form of two fixed cylinders 210a and
- 210b (of the same section in the illustrated case) arranged in opposition along the axis of movement (two-way arrow D) of two movable pistons 220a and 220b evolving together but each in a 210a and the other 210b of the two cylinders which it separates into two chambers 211a, 212a and 211b and 212b.
- These two pistons 220a and 220b push in their back and forth movements (arrow D) along said axis of movement, a rod 230.
- the third is an assembly of use 300 constituted by a membrane treatment chamber conventionally operating according to the principle of reverse osmosis.
- the fourth is an evacuation assembly 400 in low pressure liquid Pb making it possible to discharge towards the outside the low pressure liquid necessary for the operation of the cylinder-piston assembly 200.
- connection assembly 500 which, consisting of a circuit of conduits 501, 501a, 501b, 502, 502a, 502b, 503, 503a, 503b, 504, 504a, 504b, ensures the circulation of the liquid between the various assemblies 100 , 300 and 400, and the four chambers 211a, 212a, 211b, 212b in which is formed at least one light opening on said conduits.
- the conduit 501 makes it possible to connect the assembly 100 of low-pressure seawater supply Pb to the two chambers 211a and 211b operating in intake via two branches 501a and 501b
- the conduit 502 makes it possible to connect the inlet of the 300 high pressure seawater treatment system
- the conduit 503 makes it possible to connect the assembly 400 for evacuation in low pressure seawater Pb to the two chambers 212a and 212b operating in outlet via two branches 503a and 503b
- the conduit 504 makes it possible to connect the assembly 300 for treating high-pressure seawater Ph to the two chambers 212a and 212b operating in intake via two branches 504a and 504b.
- a switching assembly 600 constituted by eight switching elements 601a, 601b, 602a, 602b, 603a, 603b, 604a, 604b (produced here by flaps and / or pilot operated valves or drawers) interposed on the eight branches of conduits 501a , 501b, 502a, 502b, 503a, 503b, 504a, 504b of the linkage assembly 500, allows the operation of the entire hydraulic amplification device to be assumed by judicious control of the "authorized” state changes "unauthorized” and vice versa liquid passages in the eight branches of conduits connected two by two to the four lights formed in the four chambers 211a, 212a, 211b, 212b to move them from the position
- this device is conventional and operates according to the following cycles: - initially corresponding to the displacement (arrow D) of the rod-piston assembly 200 from left to the right, the switching elements 601a, 603a, 602b, 604b are closed and the switching elements 601b, 603b, 602a, 604a are open, so that on the one hand, the assembly 100 supplies the chamber with low pressure Pb 211a and the chamber 212a delivers low pressure liquid Pb to the assembly 400 with a pressure imbalance in the two chambers of the cylinder 210a on either side of the piston 220a, and on the other hand, the assembly 300 supplies high pressure Ph the chamber 212b and the chamber 211b discharges high pressure liquid Ph towards the same assembly 300 with a pressure balance in the two chambers of the cylinder 210b on either side of the piston 220b, in a second time corresponding to the time delay when the rod-piston assembly 200 is immobilized at the end of the right-hand stroke, the eight switching elements 601a,
- the drawing of Figure 2 is intended to illustrate the amplification device of a high pressure pumping system II respecting the fundamental concepts of the invention.
- the aforementioned pumping system comprises a second parallel cylinder-piston assembly 200 ′ connected to the first main cylinder-piston assembly 200 which, for its part, will be controlled offset from the first main cylinder-piston assembly 100 at level of the limit switches between the two rod-piston assemblies 200 and 200 ′ so that the moments of displacement displacement of the two rod-piston assemblies are never simultaneous.
- This second parallel cylinder-piston assembly 200 ′ is identical in design to the first, being in the form of two fixed cylinders 210a ′ and : 210b ′ arranged in opposition along a second axis of movement (two-way arrow D ′ ) parallel to the first, of two movable pistons 220a 'and 220b' which, pushing between them in their reciprocating movements along said axis of movement (arrow D '), a rod 230' evolve together but each in a 210a 'and the other 210b' of the two cylinders which it separates into two chambers 211a ', 212a' and 211b ', 212b' respectively.
- the eight chambers of said two main 200 and parallel 200 'piston-cylinder assemblies are advantageously coupled in pairs 211a with 211a', 212a with 212a ', 211b with 211b' and 212b with 212b 'so that each conduit 501, 502, 503 and 504 opening into two chambers (211a and 211b for the first two and 212a and
- the low pressure seawater supply assembly 100 simultaneously supplies two (211a and 211b) of the chambers of the main cylinder-piston assembly 200 and two (211a 'and 211b') of the chambers of the cylinder assembly- parallel piston 200 ', via the main duct 501 opening onto the two chambers 211a and 211b thanks to the two branches 501a and 501b controlled by the switching elements 601a and 601b and on the two chambers 211a' and 211b 'thanks to the two branches 501a' and 501b 'controlled by the switching elements 601a' and 601b ', the treatment assembly 300 for high pressure liquid Ph is supplied simultaneously by two (211a and 211b) of the chambers of the main cylinder-piston assembly 200 and two ( 211a 'and 211b') of the chambers of the parallel cylinder-piston assembly 200 ', via the main conduit 502 leading to the two chambers 211a and 211b by virtue of the two branches 502a and 50
- this difference in offset of the moments of inversion between the two rod-piston assemblies may correspond to the time of the stroke of said cylinder assemblies.
- -piston 200 and 200 'between two ends of the chambers which is just sufficient to allow the switching of the switching elements equipping each of the two piston cylinders 200 and 200 ′ and in this case, the flow flowing in the circuits 501, 502, 503 and 504 will be equal to the flow admitted and driven back by the set of eight chambers minus the flow rate of the four chambers interrupted at each reversal of the displacement D or D 'of the two rod-piston assemblies.
- This difference in offset of the moments of inversion between the two rod-piston assemblies can also correspond to a greater part or even to almost all of the time of the stroke of said cylinder-piston assemblies 200 and 200 ′ between the two ends of the chambers. to prevent the two moments of inversion of the two main cylinder-piston 200 and parallel 200 ′ assemblies taking place successively one after the other.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0207984A FR2841611B1 (fr) | 2002-06-27 | 2002-06-27 | Dispositif d'amplification hydraulique pour un systeme de pompage a haute pression |
| FR0207984 | 2002-06-27 | ||
| PCT/FR2003/002007 WO2004003383A1 (fr) | 2002-06-27 | 2003-06-27 | Dispositif d'amplification hydraulique pour un systeme de pompage a haute pression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1540178A1 true EP1540178A1 (fr) | 2005-06-15 |
Family
ID=29724926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03761662A Withdrawn EP1540178A1 (fr) | 2002-06-27 | 2003-06-27 | Dispositif d'amplification hydraulique pour un systeme de pompage a haute pression |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1540178A1 (fr) |
| AU (1) | AU2003259308A1 (fr) |
| FR (1) | FR2841611B1 (fr) |
| WO (1) | WO2004003383A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626182B (zh) * | 2018-04-16 | 2020-06-09 | 华北电力大学 | 一种变压强自适应液压势能转换装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3363575A (en) * | 1966-01-24 | 1968-01-16 | Cicero C Brown | Fluid pressure-driven multiplex pump |
| US5588808A (en) * | 1994-12-08 | 1996-12-31 | Hytech Pumps International, Inc. | Pump pressure multiplier |
| FR2732727B1 (fr) | 1995-04-04 | 1997-05-30 | 2M | Dispositif autonome non motorise de traitement de liquide par circulation dans une chambre haute pression et dispositif amplificateur de pression de liquide non motorise |
| US5628198A (en) * | 1996-05-13 | 1997-05-13 | Permar; Clark | Liquid treatment apparatus for filtering liquid under pressure |
| GB9624205D0 (en) * | 1996-11-21 | 1997-01-08 | Pearson Colin A | Fluid driven pump |
| FR2790040B1 (fr) | 1999-02-23 | 2002-02-08 | 2M | Pompe volumetrique double rotative differentielle et dispositif de traitement d'une composition liquide par osmose inverse |
| FR2795141B1 (fr) * | 1999-06-15 | 2001-09-07 | Bernard Marinzet | Pompe a pistons, procede et installation de filtration d'eau |
-
2002
- 2002-06-27 FR FR0207984A patent/FR2841611B1/fr not_active Expired - Fee Related
-
2003
- 2003-06-27 WO PCT/FR2003/002007 patent/WO2004003383A1/fr not_active Ceased
- 2003-06-27 EP EP03761662A patent/EP1540178A1/fr not_active Withdrawn
- 2003-06-27 AU AU2003259308A patent/AU2003259308A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004003383A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004003383A1 (fr) | 2004-01-08 |
| FR2841611B1 (fr) | 2006-02-17 |
| AU2003259308A1 (en) | 2004-01-19 |
| FR2841611A1 (fr) | 2004-01-02 |
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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 |
|
| 17P | Request for examination filed |
Effective date: 20050119 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20060627 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: 2M |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MAGNOLER, MICHEL |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SOCIETE DE CONSTRUCTION ELECTROMECANIQUE "SLCE" |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20061108 |