EP2625429A1 - Pumpe und verfahren zur förderung und entgasung einer flüssigkeit mittels einer düse im pumpeneinlass - Google Patents
Pumpe und verfahren zur förderung und entgasung einer flüssigkeit mittels einer düse im pumpeneinlassInfo
- Publication number
- EP2625429A1 EP2625429A1 EP11763602.7A EP11763602A EP2625429A1 EP 2625429 A1 EP2625429 A1 EP 2625429A1 EP 11763602 A EP11763602 A EP 11763602A EP 2625429 A1 EP2625429 A1 EP 2625429A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- drive motor
- liquid
- degassing
- pump housing
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type
Definitions
- the invention relates to a pump for conveying and degassing a liquid with a pump housing with pump inlet and pump outlet, wherein within the pump housing connected to a drive motor impeller and wherein a nozzle is provided in a degassing.
- the invention relates to a method for conveying and degassing a liquid, in particular dissolved in water gases, in a pump.
- a pump with the features of the preamble of claim 1 is known from DE 1 653 690 A.
- a nozzle is provided within the pump housing, wherein the nozzle is disposed above a float in a degassing chamber.
- EP 0 933 109 B1 of the Applicant discloses a method and a device for degassing gases dissolved in liquid media, in particular gases dissolved in water, in a vacuum container in which the liquid medium is supplied or removed via at least one inlet and one outlet wherein the supply takes place via at least one nozzle, wherein the negative pressure is generated by a pump connected to a controller, wherein the controller controls the pump so that due to the power adjustment between the pump, the nozzle, a pressure reducing valve in the inlet, a pressure reducing valve in a run-off in the feed and an overflow valve in the drain downstream of the pump from a larger amount of liquid medium the vacuum tank is pumped through the drain as flowing through the inlet, wherein the controller shuts off the pump after the suction of the liquid medium until sufficient liquid medium has flowed through the inlet into the vacuum tank and the gases have been forced through a vent from the vacuum tank are.
- the object of the invention is to provide a cost effective and easy to control solution for degassing of liquid media.
- a conventional pump e.g. Heating pump to be used, in which, to achieve a good degassing, the pump housing is possibly formed slightly larger.
- This pump is additionally equipped with a nozzle in the pump inlet and with a control device that controls the drive motor of the pump so that a temporary negative pressure is generated in the pump housing, so that the dissolved gases escape from the pump housing to the environment.
- the degassing principle corresponds in principle to that which is described in detail in EP
- the control device can operate in different ways to control the pump or the drive motor of the pump or to record and take into account different physical quantities.
- the degassing device also has a pressure sensor arranged in the pump housing, which is connected to the control device.
- the drive motor is then switched on or off by the control device as a function of the prevailing pressure conditions in the pump housing.
- the degassing device may further comprise a level sensor arranged in the pump housing, which is connected to the control device. Depending on the level in the pump housing, the drive motor is then also switched on or off by the control device.
- control device is designed for the time interval-controlled drive of the drive motor, ie after a predetermined time interval the drive motor of the pump is automatically switched on or off by the control device.
- the invention also provides a method for conveying and degassing a liquid, in particular gases dissolved in water, in a pump into which the liquid enters the pump housing via a pump inlet and from which the liquid via a pump outlet emerges from the pump housing, wherein the supply takes place only via at least one nozzle arranged in the pump inlet, wherein in the pump housing by a pump connected to a drive motor, a negative pressure is generated, wherein the drive motor is controlled by a control device so that due to the vote between the Drive motor and the nozzle downstream of the pump exhausts a greater amount of liquid from the pump housing through the pump outlet, as flowing through the pump inlet, the control device shuts off the drive motor of the pump after the suction of the liquid until sufficient Fl liquid has flowed through the pump inlet into the pump housing and the gases have been forced out of the pump housing through a degassing opening.
- the controller may control the drive motor of the pump in response to various physical quantities.
- control device controls the drive motor of the pump as a function of the pressure in the pump housing.
- control device can also control the drive motor of the pump as a function of the fill level in the pump housing.
- control device In the simplest way, without additional sensors are required, the control device, the drive motor of the pump and after a predetermined time interval on and off.
- a pump for conveying and degassing a liquid is indicated generally at 1 in the drawing.
- This pump 1 has a pump housing 2 with an impeller, not shown, which can be driven by a drive motor 3 connected to the pump housing 2.
- the pump housing 2 is provided with a pump inlet 4 (suction side) and a pump outlet 5 (pressure side), the interior of the pump housing 2 is designated 6.
- the pump 1 is designed not only for conveying a liquid but also for degassing the same, for which purpose the pump 1 has a degassing device.
- This degassing device comprises a nozzle 7 arranged in the pump inlet 4 and a control device (not shown) connected to the drive motor 3.
- the nozzle 7 is arranged in the pump inlet 4 such that a liquid inlet into the interior 6 of the pump housing 2 is possible only through the nozzle 7.
- the pump 1 described so far differs from a commercial pump, e.g. Standard heating pump, apart from the course of the design of the controller, which will be discussed in more detail below, only through the nozzle 7 and a preferably enlarged pump housing 2, to provide a sufficiently large space in the interior 6 for degassing the liquid available.
- the pump 1 may be located at a suitable location e.g. be arranged in a heating circuit.
- the pump inlet 4 is connected by way of e.g. motor-operated ball valve 8 with a Nachspeiseast 9 and an overflow valve 10 connected.
- the pump inlet 4 can also be connected in other ways with the liquid or heating circuit, the pump outlet 5 of the pump 1 is also connected at a suitable location to the heating circuit.
- the pump 1 further comprises a vent 11, e.g. is provided with a Peilrohrentgasung 12 and a vacuum gauge 13.
- Control device connected.
- the level is designated F in the drawing.
- the nozzle 7 and the drive motor 3 are coordinated so that when the drive motor 3 and thus the pump starts, a negative pressure in the interior 6 of the pump housing 2 is generated for a certain time.
- the liquid e.g. Water is sprayed through the nozzle 7 in the pump housing 2 and the gases are separated by the spraying process and the negative pressure in the interior 6 of the liquid.
- the drive motor 3 is then switched off by the control device so that normal static pressure is restored in the interior 6 of the pump housing 2 as a result of the subsequent flow of the fluid through the pump inlet 4 and the nozzle 7. As a result, the gases are eliminated through the degassing opening 11 and the Peilrohrentgasung 12.
- the control device can control the drive motor 3 of the pump and thus the vacuum generation in different ways.
- the control can take place in dependence on the pressure detected by the pressure sensor 14 in the pump housing 2 or additionally or alternatively depending on the level.
- a time interval of controlled drive can also be provided.
- the pump 1 or its drive motor 3 is then automatically cyclically switched on and off.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL11763602T PL2625429T3 (pl) | 2010-10-06 | 2011-09-28 | Pompa i sposób tłoczenia i odgazowywania płynu za pomocą dyszy we wlocie pompy |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010047698A DE102010047698B4 (de) | 2010-10-06 | 2010-10-06 | Pumpe und Verfahren zur Förderung und Entgasung einer Flüssigkeit |
| PCT/EP2011/004838 WO2012045404A1 (de) | 2010-10-06 | 2011-09-28 | Pumpe und verfahren zur förderung und entgasung einer flüssigkeit mittels einer düse im pumpeneinlass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2625429A1 true EP2625429A1 (de) | 2013-08-14 |
| EP2625429B1 EP2625429B1 (de) | 2019-06-12 |
Family
ID=44719848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11763602.7A Active EP2625429B1 (de) | 2010-10-06 | 2011-09-28 | Pumpe und verfahren zur förderung und entgasung einer flüssigkeit mittels einer düse im pumpeneinlass |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2625429B1 (de) |
| AU (1) | AU2011313610C1 (de) |
| DE (1) | DE102010047698B4 (de) |
| DK (1) | DK2625429T3 (de) |
| EA (1) | EA024016B1 (de) |
| PL (1) | PL2625429T3 (de) |
| WO (1) | WO2012045404A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT523841B1 (de) | 2020-10-19 | 2021-12-15 | Omicron Electronics Gmbh | Vorrichtung und Verfahren zum Entgasen einer Einrichtung und entsprechendes Prüfsystem zur Gasanalyse |
| WO2023203031A1 (en) | 2022-04-20 | 2023-10-26 | Grundfos Holding A/S | Liquid degassing system |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH130519A (de) * | 1927-09-14 | 1928-12-15 | Otto Philipp | Kreiselpumpe zur Förderung heisser Flüssigkeiten. |
| GB308442A (en) * | 1928-03-02 | 1929-03-28 | Drysdale & Co Ltd | Improvements in or relating to centrifugal pumps |
| US2036713A (en) * | 1934-05-10 | 1936-04-07 | Worthington Pump & Mach Corp | Pump drain |
| US2474539A (en) * | 1944-02-25 | 1949-06-28 | Goulds Pumps | Pumping apparatus |
| FR1532578A (fr) * | 1967-05-31 | 1968-07-12 | Chaffoteaux Et Maury | Perfectionnements aux pompes |
| GB1360478A (en) * | 1971-12-20 | 1974-07-17 | Wilkinson Rubber Linatex Ltd | Priming device for pumps |
| FR2281546A1 (fr) * | 1974-08-08 | 1976-03-05 | Saunier Duval | Ensemble pompe-purgeur degazeur pour installations de chauffage central |
| JPH03182690A (ja) * | 1989-12-12 | 1991-08-08 | Mitsubishi Oil Co Ltd | 気体除去機能付液体流送用回転ポンプ |
| FI87049C (fi) * | 1990-02-02 | 1992-11-25 | Ahlstroem Oy | Anordning foer separering av gas ur en suspension innehaollande gas |
| DE9410317U1 (de) * | 1994-06-25 | 1995-10-26 | Viessmann Werke Gmbh & Co, 35108 Allendorf | Umwälzpumpe |
| DE29520422U1 (de) * | 1995-12-22 | 1997-04-30 | Speck-Pumpenfabrik Walter Speck KG, 91154 Roth | Selbstansaugende tauchfähige Kreiselpumpe |
| ATE262365T1 (de) * | 1998-01-28 | 2004-04-15 | Reflex Winkelmann Gmbh & Co Kg | Vorrichtung zum entgasen von flüssigen medien |
| US7578870B2 (en) * | 2004-12-17 | 2009-08-25 | Hamilton Sundstrand Corporation | Fluid separating device |
-
2010
- 2010-10-06 DE DE102010047698A patent/DE102010047698B4/de active Active
-
2011
- 2011-09-28 EA EA201300417A patent/EA024016B1/ru unknown
- 2011-09-28 DK DK11763602.7T patent/DK2625429T3/da active
- 2011-09-28 WO PCT/EP2011/004838 patent/WO2012045404A1/de not_active Ceased
- 2011-09-28 PL PL11763602T patent/PL2625429T3/pl unknown
- 2011-09-28 AU AU2011313610A patent/AU2011313610C1/en active Active
- 2011-09-28 EP EP11763602.7A patent/EP2625429B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012045404A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EA024016B1 (ru) | 2016-08-31 |
| AU2011313610B2 (en) | 2014-10-02 |
| AU2011313610C1 (en) | 2015-01-22 |
| WO2012045404A1 (de) | 2012-04-12 |
| PL2625429T3 (pl) | 2019-11-29 |
| AU2011313610A1 (en) | 2013-03-21 |
| EP2625429B1 (de) | 2019-06-12 |
| DE102010047698B4 (de) | 2012-07-12 |
| DE102010047698A1 (de) | 2012-04-12 |
| DK2625429T3 (da) | 2019-08-19 |
| EA201300417A1 (ru) | 2013-09-30 |
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