EP1672216A1 - Pompe ayant des moyens de protection contre la gelée - Google Patents
Pompe ayant des moyens de protection contre la gelée Download PDFInfo
- Publication number
- EP1672216A1 EP1672216A1 EP05024983A EP05024983A EP1672216A1 EP 1672216 A1 EP1672216 A1 EP 1672216A1 EP 05024983 A EP05024983 A EP 05024983A EP 05024983 A EP05024983 A EP 05024983A EP 1672216 A1 EP1672216 A1 EP 1672216A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- predetermined temperature
- temperature
- controller
- medium
- 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
- 230000008014 freezing Effects 0.000 title claims description 8
- 238000007710 freezing Methods 0.000 title claims description 8
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 230000002528 anti-freeze Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 6
- 238000013021 overheating Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000007 visual 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/19—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/78—Warnings
Definitions
- the present invention relates to a pump having the features of the preamble of claim 1, d. H. a pump with an antifreeze device for the medium to be pumped.
- a pump with a frost protection device (DE 103 31 602 A1) is known, which protects the pump from damage when freezing the medium to be pumped in the pump.
- the frost protection device protects the shaft of the pump unit from frost damage by having an elastic support for the shaft.
- a displacement body is provided which keeps the liquid medium in the pump housing away from the shaft.
- an elastic membrane is provided, which closes a drain opening. This elastic membrane expands during frost, thus preventing ice pressure on the shaft.
- the antifreeze device has several components, the interaction of which should prevent damage to the pump when freezing occurs, and is therefore structurally complex and prone to failure.
- the pump has a temperature sensor in communication with a controller. Upon reaching a predetermined temperature, the controller controls the pump set down or turns it off completely to prevent overheating of the drive motor.
- the invention is based on the problem to provide a pump with a frost protection device, in which the frost protection device is designed structurally simple and effective at the same time.
- the antifreeze device has a control with at least one temperature sensor, which turns on the pump unit when reaching or falling below a first predetermined temperature.
- the pump unit then runs for a predetermined time or until reaching or exceeding a second predetermined temperature.
- heat is generated, which prevents freezing of the pump housing located in the medium to be conveyed, so that there is no ice formation in the pump.
- the frost protection device is thus realized by the control of the pump unit in accordance with the temperatures detected in the pump.
- the controller can be used simultaneously to protect against overheating of the pump unit.
- the second predetermined temperature at which the pump unit is turned off is then chosen so that in pumping mode with continuous delivery of the medium, for example, even in summer, this temperature is not reached.
- it is switched off only when the pump unit is running, but no or only too little to be pumped medium is pumped, z. B. as the outlet or arranged at the outlet line is closed.
- the controller has two temperature sensors, which are preferably designed as switching sensors.
- the first temperature sensor is used to switch on the pump unit when reaching or falling below the first predetermined temperature.
- the second temperature sensor is used to switch off the pump unit when reaching or exceeding the second predetermined temperature. Since the temperature sensors are disconnected, one can arrange each of the temperature sensors at the most favorable position for its function.
- the control is realized in switching sensors in a particularly simple manner by the sensors themselves.
- FIGURE shows a schematic representation of a pump according to the invention with antifreeze device.
- the figure shows a pump with a pump housing 1.
- a pump unit 1 ' is arranged in the pump housing 1.
- the pump housing 1 has an inlet 2 and an outlet 3 for the medium to be delivered.
- a pump chamber 4 is formed, in which the medium to be pumped is pumped.
- hoses o. The like. Be connected to transport the medium to be delivered over longer distances.
- the pump also has an antifreeze device 5.
- the antifreeze device 5 has a controller 6 with at least one temperature sensor 7. If required or depending on the configuration of the controller 6, further temperature sensors 8 can be provided. This will be explained in more detail below.
- the controller 6 is designed so that it turns on the pump unit 1 'when reaching or falling below a first predetermined temperature and off after a predetermined time and / or upon reaching or exceeding a second predetermined temperature.
- the second predetermined temperature is higher than the first predetermined temperature.
- the first and the second predetermined temperature can both be measured at the one temperature sensor 7. Shown is an embodiment with two temperature sensors 7, 8. These are arranged here and preferably at different locations. Preferred is an arrangement in which the first temperature sensor 7 is arranged in a region which is particularly sensitive to low temperatures, while the second temperature sensor 8 is arranged in a region where high temperatures are set particularly early.
- the time control, the achievement of the second predetermined temperature or a combination of both is preferred depends on the application of the pump, in particular the usually maximum occurring temperatures, and the operation of the antifreeze device.
- the pump can z. B. operated in winter in two ways.
- the outlet 3 or a line arranged at the outlet 3 is closed.
- the pump thus pumps no medium to be conveyed, but merely moves the present in the pump housing 1 to be conveyed medium.
- the temperature in the pump housing 1 increases relatively quickly in this mode. If the pump unit 1 'is not specifically switched off, it can lead to overheating of the pump unit 1'. In this mode of operation, switching off when reaching a second predetermined temperature is therefore preferred.
- the pump can also be operated so that it runs after switching on reaching the first predetermined temperature in pumping operation. So it is constantly moving medium to be moved by the pump.
- the medium to be delivered acts simultaneously as a coolant, so that the temperature in the pump housing 1 increases only slowly. In this mode, switching off the pump unit 1 'after a predetermined time is advantageous.
- the controller 6 may finally be designed so that it turns off the pump unit 1 ', as soon as one of the two criteria, ie reaching a predetermined Time or reaching the second predetermined temperature, is met.
- the controller 6 may be designed accordingly as control electronics to perceive any or all of the options described above.
- the first predetermined temperature is chosen so that it is slightly higher than the freezing point of the medium to be pumped. It should be ensured that the temperature is high enough to prevent freezing of the medium to be pumped, but at the same time is not too high, so that the pump unit 1 'is not turned on unnecessarily often.
- the first predetermined temperature is suitably between about 0.5 ° C and about 5 ° C, preferably about 2 ° C. These and all other temperature data refer to normal conditions.
- the second predetermined temperature is expediently between about 15 ° C and about 60 ° C, preferably between about 20 ° C and about 35 ° C with water as the medium to be conveyed.
- the controller 6 may comprise a humidity sensor or a means for detecting a filling of the pump chamber 4 with medium to be conveyed. If the pumping chamber 4 does not contain a medium to be conveyed or has been found to be sufficiently dry due to the measurement of the humidity sensor, then it can be provided that the pumping unit is not switched on even when the first predetermined temperature is reached or fallen below. The danger of freezing is in fact not given in such a case.
- the controller 6 here and preferably has two temperature sensors 7, 8, the first temperature sensor 7 serving to detect the first predetermined temperature and the second temperature sensor 8 to detect the second predetermined temperature.
- the first temperature sensor 7 serving to detect the first predetermined temperature
- the second temperature sensor 8 to detect the second predetermined temperature.
- the one or more temperature sensors 7, 8 may be designed as a switching sensors, so that the controller 6 is designed according to simple.
- a switching sensors are, for example, bimetallic switches.
- the temperature sensor (s) 7, 8 can also be designed as non-switching temperature sensors which transmit a signal corresponding to the temperature to the controller 6.
- An example of such a temperature sensor is a PTC resistor. With a PTC resistor, the resistance changes as a function of the temperature. The controller 6 thus detects the resistance of the PTC resistor and detects it due to the known temperature curve of the PTC resistor, the temperature so that a corresponding control of the pump unit 1 'can take place.
- the temperature sensors 7, 8 are arranged in the embodiment shown, the pump on the wall of the pump chamber 4 spaced from each other. They can be separated for protection by means of a thin layer or film of the medium to be conveyed, wherein the film has a sufficient thermal conductivity. Alternatively, arrangements of the temperature sensors 7, 8 in or on the pump chamber 4 are possible elsewhere.
- the arrangement of the temperature sensor 8 is chosen particularly expedient here. This is namely located directly on the pump unit 1 ', but is flowed around by the medium to be conveyed. The temperature sensor 8 is thus at a point at which high temperatures are particularly early when overloading the pump unit 1 ', but is nevertheless positioned so that the temperature of the medium to be conveyed is reliably detected.
- the first predetermined temperature and the second predetermined temperature are adjustable by the user of the pump.
- the pump can thus be easily adapted to different media to be conveyed. Alternatively, it is possible to make even a temperature adjustable.
- the controller 6 has a means 9 for detecting the pumping operation. It is thus detected whether medium to be pumped leaves the pump, or whether the pump moves only the medium in the pump.
- the controller 6 is further adapted to the pump unit 1 ' shuts off in a pumping operation after a predetermined time, if it has previously turned on the pump unit 1 'due to reaching or falling below the first predetermined temperature. This ensures that the pump is not operated unnecessarily long, although reaching the second predetermined temperature is not possible. At the same time it is prevented that the pump automatically shuts off after a certain time when desired continuous operation.
- the means 9 for detecting the pumping operation can be embodied, for example, as a pressure sensor or as a flowmeter.
- the controller 6 has here and preferably on an alarm generator 10.
- the alarm generator 10 is controlled so that it emits an alarm signal when the first predetermined temperature is reached or exceeded.
- an alarm signal can also be present when the second predetermined temperature is reached or exceeded.
- an alarm signal is issued only when reaching or falling below the first predetermined temperature or when reaching or exceeding the second predetermined temperature.
- the alarm signal is here and preferably a visual indicator and an audible signal.
- the alarm signal is different in the embodiment shown here for the various predetermined temperatures, so that the alarm signal itself can already detect the cause of the triggering of the alarm signal.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Fertilizing (AREA)
- Defrosting Systems (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004060418A DE102004060418A1 (de) | 2004-12-14 | 2004-12-14 | Pumpe mit Frostschutzeinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1672216A1 true EP1672216A1 (fr) | 2006-06-21 |
EP1672216B1 EP1672216B1 (fr) | 2007-05-02 |
Family
ID=35927000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05024983A Active EP1672216B1 (fr) | 2004-12-14 | 2005-11-16 | Pompe ayant des moyens de protection contre la gelée |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1672216B1 (fr) |
AT (1) | ATE361428T1 (fr) |
DE (2) | DE102004060418A1 (fr) |
ES (1) | ES2284119T3 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110002791A1 (en) * | 2009-04-07 | 2011-01-06 | Itt Manufacturing Enterprises, Inc. | Pump System for Removing Water from Pool Covers and Sumps |
EP2404053A4 (fr) * | 2009-03-05 | 2017-06-28 | Cummins Intellectual Properties, Inc. | Pompe à carburant haute pression avec écoulement parallèle de carburant de refroidissement |
CN112343808A (zh) * | 2020-11-06 | 2021-02-09 | 荏原机械(中国)有限公司 | 一种户外双水泵防冻控制系统 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012003639A1 (de) | 2012-02-24 | 2013-08-29 | Nilfisk-Advance A/S | Verfahren zum Betrieb eines Hochdruckreinigers mit verschiedenen Betriebsarten |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8323298U1 (de) | 1983-08-12 | 1985-09-26 | Heilmeier & Weinlein Fabrik Fuer Oel-Hydraulik Gmbh & Co Kg, 8000 Muenchen | Elektrohydraulisches Pumpenaggregat |
DE3817432A1 (de) | 1988-05-21 | 1989-11-30 | Loewe Pumpenfabrik Gmbh | Verfahren zur verhinderung des einfrierens von fluessigkeitsring-vakuumpumpen oder dergl. |
DE19649766C1 (de) | 1996-11-30 | 1998-04-09 | Netzsch Mohnopumpen Gmbh | Verfahren und Vorrichtung zum temperaturabhängigen Betreiben von Pumpen mit schneckenförmigen Rotoren |
US5765995A (en) * | 1995-10-16 | 1998-06-16 | Diesel Power Supply Co. | Automated engine-powered pump control system |
JPH11153098A (ja) * | 1997-09-19 | 1999-06-08 | Nikkiso Co Ltd | キャンドモータポンプ用凍結防止装置 |
US6152707A (en) * | 1997-05-28 | 2000-11-28 | Alberg; Steven C. | Portable water tank and booster |
EP1241357A1 (fr) * | 2001-03-12 | 2002-09-18 | GARDENA Kress + Kastner GmbH | Groupe de pompage |
DE10331602A1 (de) | 2002-08-31 | 2004-03-18 | Oase Wübker GmbH & Co. KG | Tauchmotorpumpe mit Frostschutzeinrichtung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2441383A1 (de) * | 1974-08-29 | 1976-03-18 | Frank Sche Eisenwerke Ag | Verfahren zur verhinderung des gefrierens von fluessigkeiten sowie eine einrichtung zur durchfuehrung des verfahrens |
DE10054091A1 (de) * | 2000-11-01 | 2002-05-16 | Grundfos As | Verfahren zur Ermittlung mindestens einer Eigenschaft eines im Förderweg eines Pumpenaggregats befindlichen Mediums |
-
2004
- 2004-12-14 DE DE102004060418A patent/DE102004060418A1/de not_active Withdrawn
-
2005
- 2005-11-16 AT AT05024983T patent/ATE361428T1/de active
- 2005-11-16 ES ES05024983T patent/ES2284119T3/es active Active
- 2005-11-16 DE DE502005000659T patent/DE502005000659D1/de active Active
- 2005-11-16 EP EP05024983A patent/EP1672216B1/fr active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8323298U1 (de) | 1983-08-12 | 1985-09-26 | Heilmeier & Weinlein Fabrik Fuer Oel-Hydraulik Gmbh & Co Kg, 8000 Muenchen | Elektrohydraulisches Pumpenaggregat |
DE3817432A1 (de) | 1988-05-21 | 1989-11-30 | Loewe Pumpenfabrik Gmbh | Verfahren zur verhinderung des einfrierens von fluessigkeitsring-vakuumpumpen oder dergl. |
US5765995A (en) * | 1995-10-16 | 1998-06-16 | Diesel Power Supply Co. | Automated engine-powered pump control system |
DE19649766C1 (de) | 1996-11-30 | 1998-04-09 | Netzsch Mohnopumpen Gmbh | Verfahren und Vorrichtung zum temperaturabhängigen Betreiben von Pumpen mit schneckenförmigen Rotoren |
US6152707A (en) * | 1997-05-28 | 2000-11-28 | Alberg; Steven C. | Portable water tank and booster |
JPH11153098A (ja) * | 1997-09-19 | 1999-06-08 | Nikkiso Co Ltd | キャンドモータポンプ用凍結防止装置 |
EP1241357A1 (fr) * | 2001-03-12 | 2002-09-18 | GARDENA Kress + Kastner GmbH | Groupe de pompage |
DE10331602A1 (de) | 2002-08-31 | 2004-03-18 | Oase Wübker GmbH & Co. KG | Tauchmotorpumpe mit Frostschutzeinrichtung |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 11 30 September 1999 (1999-09-30) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2404053A4 (fr) * | 2009-03-05 | 2017-06-28 | Cummins Intellectual Properties, Inc. | Pompe à carburant haute pression avec écoulement parallèle de carburant de refroidissement |
US20110002791A1 (en) * | 2009-04-07 | 2011-01-06 | Itt Manufacturing Enterprises, Inc. | Pump System for Removing Water from Pool Covers and Sumps |
CN112343808A (zh) * | 2020-11-06 | 2021-02-09 | 荏原机械(中国)有限公司 | 一种户外双水泵防冻控制系统 |
CN112343808B (zh) * | 2020-11-06 | 2022-03-18 | 荏原机械(中国)有限公司 | 一种户外双水泵防冻控制系统 |
Also Published As
Publication number | Publication date |
---|---|
DE502005000659D1 (de) | 2007-06-14 |
ATE361428T1 (de) | 2007-05-15 |
EP1672216B1 (fr) | 2007-05-02 |
ES2284119T3 (es) | 2007-11-01 |
DE102004060418A1 (de) | 2006-07-06 |
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