WO2008101294A1 - Pompe - Google Patents
Pompe Download PDFInfo
- Publication number
- WO2008101294A1 WO2008101294A1 PCT/AU2008/000233 AU2008000233W WO2008101294A1 WO 2008101294 A1 WO2008101294 A1 WO 2008101294A1 AU 2008000233 W AU2008000233 W AU 2008000233W WO 2008101294 A1 WO2008101294 A1 WO 2008101294A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- pump
- delivery pipe
- chamber
- air
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
- F04F1/18—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium being mixed with, or generated from the liquid to be pumped
- F04F1/20—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium being mixed with, or generated from the liquid to be pumped specially adapted for raising liquids from great depths, e.g. in wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/24—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/464—Arrangements of nozzles with inversion of the direction of flow
Definitions
- the present invention relates to a pump.
- the pump uses compressed air to pump liquid from a source of liquid.
- the pump of the present invention is particularly suited to pumping water.
- the pump is not limited in its use to pumping water and may be used for pumping other liquids.
- a pump comprising:
- liquid inlet means for liquid to enter said pump
- liquid entry chamber arranged to receive liquid entering said pump via said liquid inlet means
- delivery pipe means for delivering liquid and air
- inlet means to introduce air from said pump chamber into said delivery pipe means
- liquid that enters said liquid entry chamber is carried by air along said delivery pipe means.
- the inlet means comprises an entry and an exit.
- the cross-sectional area of the inlet means at said entry is greater than the cross-sectional area of the inlet means at said exit.
- the inlet means comprises an annular passage.
- the inlet means comprises a venturi.
- the annular passage is provided between a member located in the pump chamber and a portion of said delivery pipe means.
- the portion of the delivery pipe means has a surface opposed to a surface of the member, the two surfaces being substantially parallel, and the annular passage is formed between the two surfaces.
- annular passage tapers inwardly in the direction from the entry to the exit.
- the delivery pipe means is provided with a portion having an enlarged cross-sectional area.
- the portion of the delivery pipe means having an enlarged cross- sectional area is located adjacent the exit of the inlet means.
- baffle means separates the pump chamber and the liquid entry chamber.
- a valve member is located in the liquid entry chamber, the valve member able to close the liquid inlet means.
- an opening is provided such that liquid is able to pass from the liquid entry chamber to the delivery pipe means.
- the liquid is able to pass from the liquid entry chamber through the opening and via the member to the delivery pipe means.
- prevention means is provided to prevent the valve member from closing the opening.
- Figure 1 is a first schematic section view of an embodiment of a pump in accordance with the present invention
- Figure 2 is a second schematic section view of the pump shown in Figure 1.
- FIGs 1 and 2 there is shown a pump 1 for pumping liquid, such as water, using compressed air from an air supply (not shown).
- the pump 1 may be located in a water source, such as a bore 100.
- the pump 1 comprises a pump chamber 2, an air inlet 3, a delivery pipe 4, a liquid inlet 5, an inlet 6 to introduce air into the delivery pipe 4, and a liquid entry chamber 7.
- the pump chamber 2 and the delivery pipe 4 are in fluid communication via the inlet 6.
- the liquid inlet in use, allows liquid to enter the liquid entry chamber 7.
- the liquid entry chamber 7 is in fluid communication with the delivery pipe 4 via an opening 8 and a member 9 that extends from the opening 8 into the pump chamber 2.
- the member 9 is substantially tubular.
- the inlet 6 has an entry 10, for air to enter the inlet 6 from the pump chamber 2, and an exit 11 for air to leave the inlet 6 and enter the delivery pipe 4.
- the inlet 6 extends longitudinally from the entry 10 to the exit 11 in a tapering manner.
- the cross-sectional area of the inlet 6 narrows along its length such that the cross- sectional area of the inlet 6 at the entry 10 is greater than the cross-sectional area of the inlet 6 at the exit 11.
- the inlet 6 comprises an annular passage that is provided between the outer surface 12 of the member 9 and an inner surface 13 of a portion 14 of the delivery pipe 4.
- the annular passage surrounds the member 9.
- the portion 14 is located at the lower region of the delivery pipe 4.
- the tapering of the annular passage of the inlet 6 is formed by providing the outer surface 12 of the member 9 and the inner surface 13 of the portion 14 angled inwardly, in the direction from the entry 10 to the exit 11 , and being substantially parallel.
- a baffle 15 extends between the outer surface 12 of the member 9 and the inner surface 16 of the wall of the casing 17 of the pump 1. The baffle 15 is provided adjacent, but spaced from, the entry 10 to the inlet 6. The baffle 15 separates the pump chamber 2 and the liquid entry chamber 7.
- the delivery pipe 4 is provided with a portion 18 having an enlarged cross- sectional area, in the pump chamber 2, which forms a mixing chamber.
- the portion 18 is provided adjacent the portion 14 of the delivery pipe 4. The portion 18 is located above the portion 14, in the direction of fluid flow in the delivery pipe 4.
- a short tube 19 extends from the air inlet 3.
- the short tube 19 is provided on the exterior of the pump chamber 2.
- An air supply hose (not shown) is connectible to the short tube 19.
- a tube 20 extends from the delivery pipe 4.
- the tube 20 is provided with a suitable connection, e.g. a screw thread 21 , such that the tube 20 can be attached to a delivery pipe extension (not shown).
- the tube 20 is located exteriorly of the pump chamber 2.
- the portions 14 and 18 are located interiorly of the pump chamber 2.
- a valve 22 is provided at the liquid inlet 5.
- the valve 22 comprises a valve member which may be in the form of a ball 23 and a valve seat 24 surrounding the opening 5.
- the ball 23 is provided in the liquid entry chamber 7.
- the ball 23 is confined to movement within the liquid entry chamber 7.
- a bar, represented by the broken line 25, is provided across the opening 8. The bar 25 prevents the ball 23 blocking the opening 8. However, the bar 25 still allows flow of fluid through the opening 8 even when the ball 23 abuts the bar 25 (as shown in Figure 1).
- the pump 1 is suspended from ground level to its operating position in a source of liquid, below the level of liquid to be pumped from the source.
- the liquid to be pumped may be water located in a bore 100.
- the air inlet 3 Prior to insertion of the pump 1 into the bore 100, the air inlet 3 is connected to a source of compressed air, such as a compressor. This is done by connecting a hose from the source of compressed air to the short tube 19. A first delivery pipe extension (not shown) is connected to the tube 20. This may be done by the screw thread 21 provided on the tube 20.
- An outlet is provided at ground level so that liquid and air are able to travel from the pump 1 along the delivery pipe 4 and delivery pipe extensions to the outlet at ground level.
- water passes through the liquid inlet 5 by unseating the ball 23 from the seat 24.
- the water then enters the liquid entry chamber 7.
- the water may pass from the liquid entry chamber 7 through the opening 8 so that the water level in the pump 1 is substantially the same as the external water level in the bore 100.
- water will pass through the opening 8, along the member 9, into the delivery pipe 4 and then down the inlet 6 into the pump chamber 2.
- the water enters the pump chamber 2 and the delivery pipe 4 of the pump 1 until the level of water therein is the same as the external water level in the bore 100.
- the source of compressed air (such as a compressor) is activated such that compressed air is fed from the source of compressed air to the pump chamber 2 via the inlet 3.
- the introduction of compressed air into the pump chamber 2 causes the pressure in the pump chamber 2 to increase.
- the air will mix with any water in the pump chamber 2 and the air and water will pass into the inlet 6 via the entry 10.
- the liquid and air travel in the inlet 6 and discharge from the exit 11 into the delivery pipe 4 as an initial surge of water and air.
- the initial operation of the pump 1 is the same as hereinbefore described except that there is no initial surge of water and air from the pump chamber 2 into the delivery pipe 4 via the inlet 6.
- the level of liquid in the delivery pipe 4 will be at a level lower than the level of the exit 11.
- the water travels up the delivery pipe extensions with the air and is discharged from the outlet at ground level, remote from the pump 1.
- the member 9 and delivery pipe 4 form a flow path, or channel, along which the water can travel from the liquid entry chamber 7 out of the pump 1 and up the delivery pipe extensions
- the pump 1 operates to continually discharge water from the bore 100. Thus, there is no venting stage in the pump operation.
- the ball 23 moves onto (as shown in Figure 2) and off the valve seat 24. As compressed air lifts water up the delivery pipe 4, the ball 23 unseats from the seat 24 to allow more water to enter the liquid entry chamber 7 via the liquid inlet 5. In this way, water leaving the entry chamber 7, via the opening 8 to be carried along the delivery pipe 4 by the compressed air, is replaced with further water entering the liquid entry chamber 7 via the liquid inlet 5.
- the ball 23 never closes off the opening 8 (as shown in Figure 1 ). Thus, the ball 23 does not prevent water from passing from the liquid entry chamber 7 into the delivery pipe 4 via the opening 8.
- the pump 1 of the present invention may be used in bores of a wide range of depths. Indeed, the depth of the bore is not a factor that normally affects the operation of the pump 1. However, the greater the depth to which the pump is lowered, the larger the capacity of the compressor that will be required.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Jet Pumps And Other Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
L'invention concerne une pompe (1) ayant une chambre de pompe (2) avec une entrée d'air (3) de telle sorte que de l'air comprimé peut être injecté dans la chambre de pompe (2). Un liquide devant être pompé peut entrer dans une chambre d'entrée de liquide (7) à travers une entrée de liquide (5). Un tuyau de distribution (4) distribue le liquide et l'air à un emplacement éloigné de la pompe (1), par exemple au niveau du sol. Le tuyau de distribution (4) et la chambre de pompe (2) sont en communication de fluide. La chambre d'entrée de liquide (7) et le tuyau de distribution (4) sont en communication de fluide. Une entrée (6) introduit de l'air provenant de la chambre de pompe (2) dans le tuyau de distribution (4). Le liquide qui entre dans la chambre d'entrée de liquide (7) est transporté par l'air le long du tuyau de distribution (4) jusqu'à l'emplacement éloigné de la pompe (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2007900881A AU2007900881A0 (en) | 2007-02-21 | Pump | |
| AU2007900881 | 2007-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008101294A1 true WO2008101294A1 (fr) | 2008-08-28 |
Family
ID=39709560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AU2008/000233 Ceased WO2008101294A1 (fr) | 2007-02-21 | 2008-02-21 | Pompe |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2008101294A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016098758A (ja) * | 2014-11-25 | 2016-05-30 | 大成建設株式会社 | エアリフトポンプ |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2261030A (en) * | 1991-11-02 | 1993-05-05 | Peco Machine Shop And Inspecti | Recovery of liquids from underground reservoirs |
| GB2422159A (en) * | 2005-01-13 | 2006-07-19 | Helix Rds Ltd | Venturi removal of water in a gas wall |
| US20060225889A1 (en) * | 2003-09-10 | 2006-10-12 | Williams Danny T | Downhole draw down pump and method |
-
2008
- 2008-02-21 WO PCT/AU2008/000233 patent/WO2008101294A1/fr not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2261030A (en) * | 1991-11-02 | 1993-05-05 | Peco Machine Shop And Inspecti | Recovery of liquids from underground reservoirs |
| US20060225889A1 (en) * | 2003-09-10 | 2006-10-12 | Williams Danny T | Downhole draw down pump and method |
| GB2422159A (en) * | 2005-01-13 | 2006-07-19 | Helix Rds Ltd | Venturi removal of water in a gas wall |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016098758A (ja) * | 2014-11-25 | 2016-05-30 | 大成建設株式会社 | エアリフトポンプ |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
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| NENP | Non-entry into the national phase |
Ref country code: DE |
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| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 16-12-2009). |
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| 122 | Ep: pct application non-entry in european phase |
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