EP0320859A1 - Pompe de puits pour puits de petit diamètre - Google Patents
Pompe de puits pour puits de petit diamètre Download PDFInfo
- Publication number
- EP0320859A1 EP0320859A1 EP88120756A EP88120756A EP0320859A1 EP 0320859 A1 EP0320859 A1 EP 0320859A1 EP 88120756 A EP88120756 A EP 88120756A EP 88120756 A EP88120756 A EP 88120756A EP 0320859 A1 EP0320859 A1 EP 0320859A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- borehole
- pump
- piston
- drive
- reciprocating
- 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- Withdrawn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
- 230000005693 optoelectronics Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000011435 rock Chemical group 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 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
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
- F04B47/08—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth the motors being actuated by fluid
Definitions
- the invention relates to a borehole pump for small borehole diameters according to the preamble of claim 1.
- centrifugal pumps for such boreholes, but the centrifugal pumps, due to their design, have a drill hole diameter of about 100 mm required.
- the costs for sinking the borehole of this diameter amount to approx. DM 30,000.
- a significant reduction could be achieved if smaller diameter holes were sufficient for the intended task.
- the invention has for its object to provide a borehole pump for small borehole diameters, which still allows production from depths between 40 and 100 meters even with borehole diameters below 100 mm.
- the borehole pump according to the invention takes advantage of the fact that a sufficient delivery rate and a sufficient delivery pressure can also be achieved by a correspondingly long stroke instead of by a large diameter of the pump. It can be used to overcome the hydrostatic pressure between the installation site of the borehole pump and the surface of the earth by means of a corresponding pre-pressure of the pressure medium can be achieved. In contrast to circuit pumps, where the pressure is limited by fluidic criteria, the available pressure is limited only by the stability of the seal.
- the borehole pump according to the invention is also distinguished by a particular simplicity in its construction, which makes it easy to manufacture and maintain. It should be particularly emphasized that the reciprocating pump is designed similarly to the reciprocating piston drive, so that there is the possibility of using similar or identical parts for both units.
- a borehole pump is lowered in a casing 64 with which a borehole is lined.
- the casing is porous, so that water from the adjacent sand or rock in the interior formation can penetrate.
- the illustrated borehole pump consists of a reciprocating pump 10, a pressure-actuated reciprocating piston drive 12 and an electronic or electrical control device 14.
- Four lines lead to the surface namely pressure medium lines 56 and 58, one of which supplies and the other the discharge of pressure medium serves, an electrical supply and control line 60 and a delivery line 62nd
- the reciprocating piston pump 10 in turn comprises a pump chamber 16 with a pump piston 18 movable therein in the direction of the borehole axis.
- the pump chamber 16 there are inlet openings 20 from which water can penetrate from the annular space between the borehole pump and the casing and an outlet opening 22 in the end face 54 which pushes the water into the delivery line 62 leading to the surface.
- openings 66 are arranged in the pump piston 18 and can be closed via check valves 24.
- Another check valve 26 is located at the outlet opening 22.
- the reciprocating piston drive 12 comprises a drive cylinder 28 with a drive piston 30 movable therein in the direction of the borehole axis. Above the upper and below the lower end positions of the drive piston 30 there is an inlet opening 32 and an outlet opening 34.
- the openings can alternately serve as inlet and outlet openings, whereby however, there is always only one inlet opening when the other outlet opening is.
- the drive piston 30 can be pressurized on both sides, a first work chamber 46 being formed in the drive cylinder 28 between its lower end face 48 and the lower side of the drive piston 30 and a second work chamber 50 between a seal 52 and the other side of the drive piston 30.
- the reversing of the drive piston 30 is carried out by controllable valves 36 and 38, which e.g. can be designed as three-way valves.
- valves 36 and 38 are then controlled so that, for example, in a first work cycle, the first work space 46 with an incoming pressure medium line 56 and the second work space 50 with an outgoing one Pressure medium line 58 is connected and that in a second working phase the second work space 50 is connected to the incoming pressure medium line 56 and the first work space 46 is connected to the outgoing pressure medium line 58.
- the reversible control of the controllable valves 36 and 38 is carried out by the control device 14, the control signals being obtained with the aid of sensors 42 and 44 which, when the end positions of the drive piston 30 are reached, emit corresponding signals to the control device 14, which then switch over the controllable valves prompted.
- the drive piston is pushed upwards by overpressure in the first working chamber 46 and reaches the sensor 44, so the controllable valves 36 and 38 are switched so that the second working chamber 50 now receives the overpressure and the first working chamber 46 discharges its pressure medium into the outgoing pressure medium line.
- the process is reversed again.
- the pump piston 18 and the drive piston 30 are connected via a piston rod 40, so that the two pistons 18 and 30 perform synchronous movements.
- the Sealing between the reciprocating piston pump 10 and the reciprocating piston drive 12 is achieved by a seal 52 surrounding the piston rod 40.
- Fig. 2 shows a working phase in which the pistons 18 and 30 are in a middle position and are about to perform an upward movement. Corresponding flow directions of the pressure medium and of the delivery medium are shown by arrows. Arrows in the pistons also indicate the directions of movement of the pistons.
- Pressure medium is let into the first working space 46, while pressure medium escapes from the second working space 50.
- the differential pressure between the two working spaces 46 and 50 thus leads to an upward movement of the drive piston 30 and thus to an upward movement of the pump piston 18 via the piston rod 40.
- the check valve 26 arranged in the outlet opening 22 is accordingly opened and the check valve 24 present in the pump piston 18 is closed.
- FIG. 4 A center position of the pistons with a downward movement tendency is illustrated in FIG. 4. Again the arrows in the pistons show the direction of movement.
- the direction of flow of the pressure medium is correspondingly reversed compared to that in FIG. 2, that is, pressure medium flows into the second work space 50 and out of the first work space 46.
- the pressure difference causes the displacement of the drive piston 30 and thus the pump piston 18.
- the check valve 26 is closed in this phase as a result of the water column standing in the delivery line 62.
- the check valve 24 in the pump piston 18 is open and the water can flow from the lower part of the pump chamber 16 through the openings 66 in the pump piston 18 into the upper part of the pump chamber 16.
- additional check valves could also be arranged in front of or behind the inlet openings 20. As a rule, however, you can do without these additional check valves.
- FIG. 5 shows a cross-section through a borehole in scale, the arrangement of the line leading to the surface above is indicated here and at the same time a realistic impression of the small dimensions of the required boreholes obtained with the invention is obtained.
- the invention enables the required bore hole diameter to be reduced to 50 mm, the cost of the reed being able to be limited by approximately 1/10 of the value mentioned at the outset.
- two further seals 70 and 72 are provided in addition to the seal 52 in order to counter the risk that oil-containing air can get from the working space 50 into the pump chamber 16 with only one seal 52, which would falsify the measurements.
- FIG. 6 are therefore a total of three seals gene 52, 70 and 72 provided here in two-part connecting and sealing element 74. Furthermore, the embodiment according to FIG. 6 has an airlock 68 between the lower seal 52 and the seal 70 arranged above it.
- the two seals 52 and 70 are designed as rod seals and pressure-stable on both sides (from above and from below) as compressed air seals.
- the upper seal 72 is provided for water, that is, it is designed as a hydraulic seal. It is sufficient if this seal 72 is only pressure-stable from above.
- a floor chamber 80 is provided below a partition 78, within which the control unit 14 is located, and which acts as a condensate chamber.
- a condensate drain 82 is therefore provided in the lower floor 84.
- the compressed air entering the bottom chamber 80 is filled to a high degree with moisture and the condensate is to be prevented from entering the control unit 14. Due to the expansion of the compressed air within the bottom chamber 80 that takes place during operation, liquid collects on the bottom 84, which can be removed by opening the condensate drain 82 after the pump has been used.
- the exemplary embodiment according to FIG. 7 also shows an upper cover 86 which can be designed to be divisible in the horizontal direction. If at the same time the lines leading through the cover 86 are designed in the manner of a plug connection, the upper part of the cover can be easily removed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3742660 | 1987-12-16 | ||
| DE19873742660 DE3742660A1 (de) | 1987-12-16 | 1987-12-16 | Bohrlochpumpe fuer kleine bohrlochdurchmesser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0320859A1 true EP0320859A1 (fr) | 1989-06-21 |
Family
ID=6342758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88120756A Withdrawn EP0320859A1 (fr) | 1987-12-16 | 1988-12-13 | Pompe de puits pour puits de petit diamètre |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0320859A1 (fr) |
| DE (1) | DE3742660A1 (fr) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2667116A1 (fr) * | 1990-09-20 | 1992-03-27 | Inst Francais Du Petrole | Dispositif de pompage d'un fluide polyphasique. |
| RU2210003C1 (ru) * | 2002-04-02 | 2003-08-10 | Открытое Акционерное Общество "Алнас" | Установка погружная электрогидроприводная |
| RU2287887C1 (ru) * | 2005-06-09 | 2006-11-20 | Александр Исаакович Рабинович | Погружной маслозаполненный электродвигатель |
| RU170784U1 (ru) * | 2015-08-11 | 2017-05-11 | Николай Владимирович Шенгур | Скважинный насос двойного действия |
| RU2652693C1 (ru) * | 2017-07-12 | 2018-04-28 | Вячеслав Владимирович Леонов | Скважинный насос |
| RU2813013C1 (ru) * | 2023-05-12 | 2024-02-06 | Общество с ограниченной ответственностью "Лантан-ГИРС" | Гидроприводной погружной насосный агрегат |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2489601C2 (ru) * | 2010-09-27 | 2013-08-10 | Николай Николаевич Зубов | Установка погружная электрогидроприводная |
| RU2610168C1 (ru) * | 2015-11-02 | 2017-02-08 | Общество с ограниченной ответственностью "Дрим Ойл" | Погружной объемный насос |
| RU2677955C1 (ru) * | 2018-03-14 | 2019-01-22 | Акционерное общество "Новомет-Пермь" | Погружной плунжерный насос |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2125605A1 (de) * | 1971-05-24 | 1972-12-07 | Armaturenfabrik Ernst Horn Kg, 2390 Flensburg | Druckmittelbetriebene Kolbenpumpe, insbesondere zur dosierten und eichgerechten Abgabe von Flüssigkeiten |
| US4234295A (en) * | 1979-02-01 | 1980-11-18 | Jensen James B | Subsurface hydraulic pump using high pressure accumulator |
| CA1100813A (fr) * | 1978-07-14 | 1981-05-12 | Jan A.H. Dessens | Pompe volumetrique a debit constant |
| US4302158A (en) * | 1976-01-22 | 1981-11-24 | Brown Kenard D | Automatic pump for deep wells |
| GB2107798A (en) * | 1978-10-14 | 1983-05-05 | Thomas Arthur Craggs | Liquid pumping apparatus |
| DE3430502A1 (de) * | 1984-08-18 | 1986-02-27 | HASCO-Normalien Hasenclever & Co, 5880 Lüdenscheid | Tiefbrunnen-pumpvorrichtung |
-
1987
- 1987-12-16 DE DE19873742660 patent/DE3742660A1/de not_active Withdrawn
-
1988
- 1988-12-13 EP EP88120756A patent/EP0320859A1/fr not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2125605A1 (de) * | 1971-05-24 | 1972-12-07 | Armaturenfabrik Ernst Horn Kg, 2390 Flensburg | Druckmittelbetriebene Kolbenpumpe, insbesondere zur dosierten und eichgerechten Abgabe von Flüssigkeiten |
| US4302158A (en) * | 1976-01-22 | 1981-11-24 | Brown Kenard D | Automatic pump for deep wells |
| CA1100813A (fr) * | 1978-07-14 | 1981-05-12 | Jan A.H. Dessens | Pompe volumetrique a debit constant |
| GB2107798A (en) * | 1978-10-14 | 1983-05-05 | Thomas Arthur Craggs | Liquid pumping apparatus |
| US4234295A (en) * | 1979-02-01 | 1980-11-18 | Jensen James B | Subsurface hydraulic pump using high pressure accumulator |
| DE3430502A1 (de) * | 1984-08-18 | 1986-02-27 | HASCO-Normalien Hasenclever & Co, 5880 Lüdenscheid | Tiefbrunnen-pumpvorrichtung |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2667116A1 (fr) * | 1990-09-20 | 1992-03-27 | Inst Francais Du Petrole | Dispositif de pompage d'un fluide polyphasique. |
| RU2210003C1 (ru) * | 2002-04-02 | 2003-08-10 | Открытое Акционерное Общество "Алнас" | Установка погружная электрогидроприводная |
| RU2287887C1 (ru) * | 2005-06-09 | 2006-11-20 | Александр Исаакович Рабинович | Погружной маслозаполненный электродвигатель |
| RU170784U1 (ru) * | 2015-08-11 | 2017-05-11 | Николай Владимирович Шенгур | Скважинный насос двойного действия |
| RU2652693C1 (ru) * | 2017-07-12 | 2018-04-28 | Вячеслав Владимирович Леонов | Скважинный насос |
| WO2019013675A1 (fr) * | 2017-07-12 | 2019-01-17 | Общество С Ограниченной Ответственностью "Оклэс Технолоджиз" | Pompe pour puits de forage |
| EA036794B1 (ru) * | 2017-07-12 | 2020-12-22 | Общество С Ограниченной Ответственностью "Оклэс Технолоджиз" | Скважинный насос |
| US11162490B2 (en) | 2017-07-12 | 2021-11-02 | Oklas Technologies Limited Liability Company | Borehole pump |
| RU2813013C1 (ru) * | 2023-05-12 | 2024-02-06 | Общество с ограниченной ответственностью "Лантан-ГИРС" | Гидроприводной погружной насосный агрегат |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3742660A1 (de) | 1989-07-13 |
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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 ES FR GB GR IT LI LU NL SE |
|
| 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: 19891222 |