CA2599546A1 - Water pump for bodies of water containing suspended particles - Google Patents
Water pump for bodies of water containing suspended particles Download PDFInfo
- Publication number
- CA2599546A1 CA2599546A1 CA002599546A CA2599546A CA2599546A1 CA 2599546 A1 CA2599546 A1 CA 2599546A1 CA 002599546 A CA002599546 A CA 002599546A CA 2599546 A CA2599546 A CA 2599546A CA 2599546 A1 CA2599546 A1 CA 2599546A1
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- CA
- Canada
- Prior art keywords
- pump
- operating state
- motor
- water pump
- water
- 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.)
- Abandoned
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000002245 particle Substances 0.000 title claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000013500 data storage Methods 0.000 claims abstract description 7
- 230000004913 activation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/047—Liquid pumps for aquaria
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0686—Mechanical details of the pump control unit
-
- 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
- F04D15/0088—Testing machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A water pump for bodies of water such as ponds, aquariums, or fountains containing suspended particles has a housing (1) comprising a pump housing part (2) provided with an intake opening (4) and an exit opening (5), in which housing part an impeller (8) with a shaft (9) is rotatably supported, and a motor housing part (3) in which an electric motor is received. As an improvement, an electronically commutated motor is used and the pump has a power input (26) as well as power and control electronics (16) for the motor comprising an operating state detection device with speed detection, processor (17) and data storage device. The processor (17) can control an interrupt switch (21) between the power input (26) and the motor. In the data storage device certain characteristic lines in regard to normal operating states can be stored.
Description
Water Pump for Bodies of Water Containing Suspended Particles The invention relates to a water pump for bodies of water that contain principally not only pollution-free water but also suspended particles, mud, leaves and pieces of algae or similar materials. Such bodies of water are ponds, aquariums or fountains, for example.
Such pumps according to the preamble of claim 1 as they are known in practice have usually a thermoswitch as a safety device. This switch switches off the pump when overheating occurs, for example, as a result of an integrated or downstream filter being clogged by suspended particles or as a result of clogging of a conduit in the feed or outlet lines. Also, when the pump is operated without water being actually conveyed, the pump will overheat so that after a certain amount of time the overheating protection will intervene.
There are also pumps that are provided alternatively or additionally with a switch-off mechanism that immediately responds when the pump conveys no water.
This state is determined in such pumps that operate with load-independent constant speed in such a way that the load on the pump is measured. When the load is extremely low, this means that the pump is running without water. The pump is switched off immediately and, up to this point, has often turned only one fourth of a revolution. When upon start-up the pump is positioned, for example, in a pump sump that is only filled minimally, it is not possible to start the pump permanently because of the early power-off since the pump is not turning long enough, despite taking in air, in order to suck in the required water quantity into the pump sump for the pump to operate properly. Also, it is not possible to test the function of the pump without water because switching off is taking place so quickly that it is not possible to detect whether the motor turns at all.
It is therefore an object of the invention to provide a pump that avoids the aforementioned problems. This object is solved by a water pump having the features of claim 1.
The combined use of an electronically commutated motor (EC motor) as well as the provision of power and control electronics with an operating state detection device by means of speed sensing, a processor, and a data storage device, the speed of the pump can be detected, evaluated in the processor and can be utilized by means of the power and control electronics for changing the pump function. An - only imprecise - detection of the load on the pump is no longer required, and an EC motor with load-dependent and accordingly adjustable speed can be used.
The control electronics can thus lower as needed the speed of the motor such that there is no risk of damaging it. Preferably, the pump has also an interrupt switch between the power input and the motor that, when certain defined operating states occur, interrupts the power input so that the motor is stopped completely. Of course, the pump can have additionally a conventional overheat protection that switches off the pump, for example, by means of a thermocouple and interrupt contact, when the pump is overheating for whatever reason.
The speed detection required for operating state detection can have a speed sensor that is designed for recognizing the rotor position and the rotary frequency of the motor. This sensor can be, for example, a Hall sensor. It is also possible, and realizable without additional material expenditure by means of the intelligence inherent in the pump, to configure the speed detection without a sensor. In this connection, at any point in time at the coil or coils momentarily not supplied with current and not switched at the moment, the current flow induced by the magnet rotor is measured and, based thereon, the rotor position is determined. In this connection, the speed at which the coils that generate an induced current flow change provides the rotary frequency. Both pieces of information are evaluated by means of the processor and can be utilized for control.
Such pumps according to the preamble of claim 1 as they are known in practice have usually a thermoswitch as a safety device. This switch switches off the pump when overheating occurs, for example, as a result of an integrated or downstream filter being clogged by suspended particles or as a result of clogging of a conduit in the feed or outlet lines. Also, when the pump is operated without water being actually conveyed, the pump will overheat so that after a certain amount of time the overheating protection will intervene.
There are also pumps that are provided alternatively or additionally with a switch-off mechanism that immediately responds when the pump conveys no water.
This state is determined in such pumps that operate with load-independent constant speed in such a way that the load on the pump is measured. When the load is extremely low, this means that the pump is running without water. The pump is switched off immediately and, up to this point, has often turned only one fourth of a revolution. When upon start-up the pump is positioned, for example, in a pump sump that is only filled minimally, it is not possible to start the pump permanently because of the early power-off since the pump is not turning long enough, despite taking in air, in order to suck in the required water quantity into the pump sump for the pump to operate properly. Also, it is not possible to test the function of the pump without water because switching off is taking place so quickly that it is not possible to detect whether the motor turns at all.
It is therefore an object of the invention to provide a pump that avoids the aforementioned problems. This object is solved by a water pump having the features of claim 1.
The combined use of an electronically commutated motor (EC motor) as well as the provision of power and control electronics with an operating state detection device by means of speed sensing, a processor, and a data storage device, the speed of the pump can be detected, evaluated in the processor and can be utilized by means of the power and control electronics for changing the pump function. An - only imprecise - detection of the load on the pump is no longer required, and an EC motor with load-dependent and accordingly adjustable speed can be used.
The control electronics can thus lower as needed the speed of the motor such that there is no risk of damaging it. Preferably, the pump has also an interrupt switch between the power input and the motor that, when certain defined operating states occur, interrupts the power input so that the motor is stopped completely. Of course, the pump can have additionally a conventional overheat protection that switches off the pump, for example, by means of a thermocouple and interrupt contact, when the pump is overheating for whatever reason.
The speed detection required for operating state detection can have a speed sensor that is designed for recognizing the rotor position and the rotary frequency of the motor. This sensor can be, for example, a Hall sensor. It is also possible, and realizable without additional material expenditure by means of the intelligence inherent in the pump, to configure the speed detection without a sensor. In this connection, at any point in time at the coil or coils momentarily not supplied with current and not switched at the moment, the current flow induced by the magnet rotor is measured and, based thereon, the rotor position is determined. In this connection, the speed at which the coils that generate an induced current flow change provides the rotary frequency. Both pieces of information are evaluated by means of the processor and can be utilized for control.
Further advantages and details result from the dependent claims and the embodiments of the invention illustrated in the drawings which will be explained in the following. It is shown in:
Fig. 1 schematically a pump according to the invention;
Fig. 2 a diagram with pump characteristic lines and operating states; and Fig. 3 a diagram with speed characteristic lines of the pump.
The water pump illustrated in Fig. 1 has a housing 1 that is subdivided into a pump housing part 2 and a motor housing part 3. The pump housing part 2 has an intake opening 4 functioning as a water intake and an exit opening 5 serving as a water outlet. In the pump housing part 2 an impeller 8 is arranged on a rotatable shaft 9. The shaft 9 extends from the pump housing part 2 into the motor housing part 3 and into an EC motor arranged therein. The EC motor has a rotor 14 fixedly connected to the shaft 9 and a stator 12 surrounding the rotor.
Preferably, the rotor 14 is of a two-pole configuration and the stator 12 is of a six-pole configuration (or a two-pole configuration with protective extra-low voltage).
The shaft 9 is supported in an end shield 10 that shields the motor mechanically relative to the pump housing part 2 and the impeller 8.
In the pump housing 1 control and power electronics 16 are provided which preferably are arranged also in the motor housing part 3 and thus at a spacing from the water-conveying parts. Included is also a schematically indicated microprocessor 17 that can actuate an interrupt switch 21 by means of a control line schematically indicated by arrow 19. In this way, the electric supply between the electric power input 26 of the pump, that is connected to a electric cable 36, and the power electronics 16 and thus the motor can be interrupted. In Fig. 1, the interrupt switch 21 is illustrated in the activated position, i.e., current flow is interrupted and the motor is switched off. The illustration of the interrupt switch 21 is only schematic. Of course, not only a mechanical switch but also in particular electronic switches can be utilized.
The entire electronic device including power electronics 16, microprocessor 17, and interrupt switch 21 can be potted so as to be watertight for safety reasons.
This holds true also for the stator 12 of the motor. Inasmuch as stator 12 and rotor 14 are separated by a so-called split cage, preferably the entire free motor housing part can be potted to be watertight.
The pump according to the invention is utilizable in a plurality of ways when in the date storage device information in regard to a normal operating state of the pump is stored. This can be in particular the conventional pump characteristic lines and/or rotary speed characteristic lines. For an optimal control a software is to be provided in the electronics which software performs a nominal/actual value comparison between the stored normal operating state data and the detected actual operating state of the pump detected by the operating state detection device. Upon surpassing a preset difference between these two values, which preset difference is also stored within the data storage device, a change of the operating state of the pump is to be initiated by means of the control device.
This change can be, for example, lowering of the speed of the pump or switching off of the pump by activation of the interrupt switch 21.
As a result of the speed detection, the pump cannot only comprise control electronics but also governing electronics without significant further material expenditure which governing electronics ensure by a closed-loop control circuit that the target speed of the pump is indeed achieved and maintained. In this connection, the speed is continuously detected, compensated, and possibly adjusted. This is done, for example, in that the permissible and preset difference for the nominal/actual value comparison between normal operating state and actual operating state is set to be very low.
Fig. 1 schematically a pump according to the invention;
Fig. 2 a diagram with pump characteristic lines and operating states; and Fig. 3 a diagram with speed characteristic lines of the pump.
The water pump illustrated in Fig. 1 has a housing 1 that is subdivided into a pump housing part 2 and a motor housing part 3. The pump housing part 2 has an intake opening 4 functioning as a water intake and an exit opening 5 serving as a water outlet. In the pump housing part 2 an impeller 8 is arranged on a rotatable shaft 9. The shaft 9 extends from the pump housing part 2 into the motor housing part 3 and into an EC motor arranged therein. The EC motor has a rotor 14 fixedly connected to the shaft 9 and a stator 12 surrounding the rotor.
Preferably, the rotor 14 is of a two-pole configuration and the stator 12 is of a six-pole configuration (or a two-pole configuration with protective extra-low voltage).
The shaft 9 is supported in an end shield 10 that shields the motor mechanically relative to the pump housing part 2 and the impeller 8.
In the pump housing 1 control and power electronics 16 are provided which preferably are arranged also in the motor housing part 3 and thus at a spacing from the water-conveying parts. Included is also a schematically indicated microprocessor 17 that can actuate an interrupt switch 21 by means of a control line schematically indicated by arrow 19. In this way, the electric supply between the electric power input 26 of the pump, that is connected to a electric cable 36, and the power electronics 16 and thus the motor can be interrupted. In Fig. 1, the interrupt switch 21 is illustrated in the activated position, i.e., current flow is interrupted and the motor is switched off. The illustration of the interrupt switch 21 is only schematic. Of course, not only a mechanical switch but also in particular electronic switches can be utilized.
The entire electronic device including power electronics 16, microprocessor 17, and interrupt switch 21 can be potted so as to be watertight for safety reasons.
This holds true also for the stator 12 of the motor. Inasmuch as stator 12 and rotor 14 are separated by a so-called split cage, preferably the entire free motor housing part can be potted to be watertight.
The pump according to the invention is utilizable in a plurality of ways when in the date storage device information in regard to a normal operating state of the pump is stored. This can be in particular the conventional pump characteristic lines and/or rotary speed characteristic lines. For an optimal control a software is to be provided in the electronics which software performs a nominal/actual value comparison between the stored normal operating state data and the detected actual operating state of the pump detected by the operating state detection device. Upon surpassing a preset difference between these two values, which preset difference is also stored within the data storage device, a change of the operating state of the pump is to be initiated by means of the control device.
This change can be, for example, lowering of the speed of the pump or switching off of the pump by activation of the interrupt switch 21.
As a result of the speed detection, the pump cannot only comprise control electronics but also governing electronics without significant further material expenditure which governing electronics ensure by a closed-loop control circuit that the target speed of the pump is indeed achieved and maintained. In this connection, the speed is continuously detected, compensated, and possibly adjusted. This is done, for example, in that the permissible and preset difference for the nominal/actual value comparison between normal operating state and actual operating state is set to be very low.
The application possibilities and the function of the pump according to the invention can be explained particularly well with the aid of the diagrams of Figs. 2 and 3.
Fig. 2 shows the water flow rate in liters/minute p'lotted against the pressure or the height in meters that must be overcome by the water with the aid of the pump. The light-colored line 61 is the characteristic line 61 provided by the manufacturer for the height plotted against flow rate on which characteristic line the pump operates in the normal operating state. However, the pump is also able or capable of providing higher power up to a maximum characteristic line 62.
Additionally, Fig. 2 illustrates two device characteristic lines 63, 64. The lower device characteristic line 63 represents the proper use of the pump in a normal device in which the pump is usuaily utilized and for optimal free conduits and filters, i.e., for a device that as a whole is clean. The pump then operates generally at the operating state point A.
The upper steeper device characteristic line 64, on the other hand, shows possible operating points of the total device when filters are clogged, the device as a whole is soiled or higher pressures must be overcome for other reasons.
In this case or, for example, in the case of a clogged filter, the operating state of the pump moves from point A along the normal characteristic line 61 to the operating state point C. In this connection, the pump no longer achieves the desired flow rate Q; the flow rate drops. By means of the software-supported pump control in such a case the operating state of the pump is moved upwardly along the device characteristic line 64 until the initial and desired flow rate is reached.
This is the case at the illustrated operating state point A'. The flow rate of the pump can be increased maximally until the maximum characteristic line 62 is reached.
The pump therefore can automatically adjust the desired operating state and maintain the flow rate Q at a constant rate, for example, in the case of a filter that slowly becomes clogged, over a long period of time without the operator of the pump having to continuously adjust the pump operation himself.
The control is optimized in that in the data storage device different pump characteristics lines and speed characteristics lines are stored already at the time of delivery of the pump. The pump can therefore automatically react to changes of the device characteristic line and perform a readjustment to the set output.
In analogy to the determination of the flow rate based on the diagram of Fig.
2, the speed of the pump in different operating states can be taken from the diagram of Fig. 3. Numeral 61 indicates again the standard characteristic line and 62 indicates the maximum pump characteristic line.
The described operating state detection technology is utilized also for dry running and blocking protection. In the case of dry running of the pump, i.e., when the pump takes in no water, the pump has no resistance and therefore rotates at very high speed without any flow; this is indicated by operating state point T. The point T is above the maximum characteristic line 62. This is recognized by the pump by means of the speed detection and the interrupt switch 21 will be activated. However, in order to prevent in the case of a brief period of dry running, for example, if not enough water is present in the pump sump, an immediate power-off of the pump, the software comprises a predetermined program that first causes one or several speed changes of the pump before the pump is switch off. Such a program can lower the engine speed, for example, once or several times, to the operating point P. An example of such a program course is as follows:
2 seconds operating point T, 2 seconds operating point P
2 seconds operating point T, 2 seconds operating point P, 2 seconds operating point T, power off.
During the course of this program pass, the pump has the possibility, for example, if the pump sump is not filled sufficiently, to take in the required quantity of water for its operation. In this way, there is a flow rate Q and the operating point moves on the standard characteristic line 61. When during the program pass it is detected that the standard operating state is reached, the software is to be designed such that the program is stopped because switching off of the pump is no longer required.
Such a program can advantageously be used also as a self-test of the pump.
When at the time of purchase the pump is connected to a power supply without water being present, the pump runs the afore described program and powers off at the end of the program. The buyer can therefore hear that the motor of the pump is intact.
When the pump is blocked, for example, in the case of a complete clogging, the opposite of a dry run occurs. In the case of blockage, the speed is reduced to zero at the indicated operating point B. This operating point B is significantly below the minimal desired nominal characteristic line 61 so that this state is detected by the electronic device as a blockage and the pump is switch off.
The pump according to the invention can therefore be used in different operating states without the operator having to perform his own adjustments. As described, an automatic self-test can be provided so that even at the time of purchase the function of the pump can be demonstrated plausibly.
Fig. 2 shows the water flow rate in liters/minute p'lotted against the pressure or the height in meters that must be overcome by the water with the aid of the pump. The light-colored line 61 is the characteristic line 61 provided by the manufacturer for the height plotted against flow rate on which characteristic line the pump operates in the normal operating state. However, the pump is also able or capable of providing higher power up to a maximum characteristic line 62.
Additionally, Fig. 2 illustrates two device characteristic lines 63, 64. The lower device characteristic line 63 represents the proper use of the pump in a normal device in which the pump is usuaily utilized and for optimal free conduits and filters, i.e., for a device that as a whole is clean. The pump then operates generally at the operating state point A.
The upper steeper device characteristic line 64, on the other hand, shows possible operating points of the total device when filters are clogged, the device as a whole is soiled or higher pressures must be overcome for other reasons.
In this case or, for example, in the case of a clogged filter, the operating state of the pump moves from point A along the normal characteristic line 61 to the operating state point C. In this connection, the pump no longer achieves the desired flow rate Q; the flow rate drops. By means of the software-supported pump control in such a case the operating state of the pump is moved upwardly along the device characteristic line 64 until the initial and desired flow rate is reached.
This is the case at the illustrated operating state point A'. The flow rate of the pump can be increased maximally until the maximum characteristic line 62 is reached.
The pump therefore can automatically adjust the desired operating state and maintain the flow rate Q at a constant rate, for example, in the case of a filter that slowly becomes clogged, over a long period of time without the operator of the pump having to continuously adjust the pump operation himself.
The control is optimized in that in the data storage device different pump characteristics lines and speed characteristics lines are stored already at the time of delivery of the pump. The pump can therefore automatically react to changes of the device characteristic line and perform a readjustment to the set output.
In analogy to the determination of the flow rate based on the diagram of Fig.
2, the speed of the pump in different operating states can be taken from the diagram of Fig. 3. Numeral 61 indicates again the standard characteristic line and 62 indicates the maximum pump characteristic line.
The described operating state detection technology is utilized also for dry running and blocking protection. In the case of dry running of the pump, i.e., when the pump takes in no water, the pump has no resistance and therefore rotates at very high speed without any flow; this is indicated by operating state point T. The point T is above the maximum characteristic line 62. This is recognized by the pump by means of the speed detection and the interrupt switch 21 will be activated. However, in order to prevent in the case of a brief period of dry running, for example, if not enough water is present in the pump sump, an immediate power-off of the pump, the software comprises a predetermined program that first causes one or several speed changes of the pump before the pump is switch off. Such a program can lower the engine speed, for example, once or several times, to the operating point P. An example of such a program course is as follows:
2 seconds operating point T, 2 seconds operating point P
2 seconds operating point T, 2 seconds operating point P, 2 seconds operating point T, power off.
During the course of this program pass, the pump has the possibility, for example, if the pump sump is not filled sufficiently, to take in the required quantity of water for its operation. In this way, there is a flow rate Q and the operating point moves on the standard characteristic line 61. When during the program pass it is detected that the standard operating state is reached, the software is to be designed such that the program is stopped because switching off of the pump is no longer required.
Such a program can advantageously be used also as a self-test of the pump.
When at the time of purchase the pump is connected to a power supply without water being present, the pump runs the afore described program and powers off at the end of the program. The buyer can therefore hear that the motor of the pump is intact.
When the pump is blocked, for example, in the case of a complete clogging, the opposite of a dry run occurs. In the case of blockage, the speed is reduced to zero at the indicated operating point B. This operating point B is significantly below the minimal desired nominal characteristic line 61 so that this state is detected by the electronic device as a blockage and the pump is switch off.
The pump according to the invention can therefore be used in different operating states without the operator having to perform his own adjustments. As described, an automatic self-test can be provided so that even at the time of purchase the function of the pump can be demonstrated plausibly.
Claims (9)
1. A water pump for bodies of water, such as ponds, aquariums or fountains, containing suspended particles, comprising a housing (1) that comprises a pump housing part (2) provided with an intake opening (4) and an exit opening (5), in which housing part an impeller (8) with a shaft (9) is arranged so as to be rotatable, and comprising a motor housing part (3) in which an electric motor is received, characterized in that the motor is an electronically commutated motor and the pump has a power input (26) as well as power and control electronics (16) for the motor comprising an operating state detection device with speed detection, processor (17) and data storage device.
2. The water pump according to claim 1, characterized by an interrupt switch (21) controlled by the processor (17) and arranged between the power input (26) and the motor.
3. The water pump according to one of the preceding claims, characterized in that information (pump characteristic line/s and/or speed characteristic line/s) (61, 62) in regard to at least one normal operating state of the pump are stored in the data storage device.
4. The water pump according to claim 3, characterized by a software that carries out a nominal/actual value comparison between the stored standard operating state data and the actual operating state of the pump detected by the operating state detection device and initiates a change of the operating state when a preset difference is surpassed.
5. The water pump according to claim 4, characterized in that the change of the operating state consists of running a predetermined program with speed change of the pump.
6. The water pump according to claim 4 or 5, characterized in that, when the standard operating state is reached again during the program pass, the program is stopped.
7. The water pump according to one of the claims 4 to 6, characterized in that the operating state change is an activation of the interrupt switch (21) or ends.
8. The water pump according to one of the preceding claims, characterized by governing electronics governing a predetermined speed.
9. The water pump according to one of the preceding claims, characterized in that the entire electronics are arranged in the motor housing part (3) and are water-tightly potted.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006041317.2-15 | 2006-09-01 | ||
| DE102006041317A DE102006041317A1 (en) | 2006-09-01 | 2006-09-01 | Water pump for suspended waters containing water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2599546A1 true CA2599546A1 (en) | 2008-03-01 |
Family
ID=38720708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002599546A Abandoned CA2599546A1 (en) | 2006-09-01 | 2007-08-30 | Water pump for bodies of water containing suspended particles |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080056911A1 (en) |
| EP (1) | EP1897439B1 (en) |
| CN (1) | CN101135312B (en) |
| CA (1) | CA2599546A1 (en) |
| DE (1) | DE102006041317A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131177A (en) * | 2019-06-10 | 2019-08-16 | 陈荣国 | AC permanent magnet protected type booster pump |
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| DE102009005154A1 (en) * | 2009-01-15 | 2010-07-22 | Wilo Se | Device for connecting an electromotive drive unit with a pump unit |
| WO2011022483A1 (en) * | 2009-08-18 | 2011-02-24 | Itt Manufacturing Enterprises, Inc. | Encapsulated submersible pump |
| KR101534695B1 (en) * | 2009-12-04 | 2015-07-08 | 현대자동차 주식회사 | Variable water pump control system and method |
| US9016290B2 (en) | 2011-02-24 | 2015-04-28 | Joseph E. Kovarik | Apparatus for removing a layer of sediment which has settled on the bottom of a pond |
| DE102012206519A1 (en) * | 2012-04-20 | 2013-10-24 | Robert Bosch Gmbh | Pump, particularly internal- or external gear pump, vane pump, axial piston pump or radial piston pump, has data store, in which characteristic curve indicating relationship between speed of drive shaft and fluid flow of pump is stored |
| US11085450B2 (en) | 2013-10-18 | 2021-08-10 | Regal Beloit America, Inc. | Pump having a housing with internal and external planar surfaces defining a cavity with an axial flux motor driven impeller secured therein |
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| CN103918599B (en) * | 2014-01-17 | 2016-10-05 | 杨迁帆 | A kind of water lubrication roller bearing component of waterwheel aerator |
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-
2006
- 2006-09-01 DE DE102006041317A patent/DE102006041317A1/en not_active Withdrawn
-
2007
- 2007-08-24 EP EP07016604.6A patent/EP1897439B1/en active Active
- 2007-08-30 CA CA002599546A patent/CA2599546A1/en not_active Abandoned
- 2007-08-31 CN CN200710148323.5A patent/CN101135312B/en active Active
- 2007-08-31 US US11/848,526 patent/US20080056911A1/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131177A (en) * | 2019-06-10 | 2019-08-16 | 陈荣国 | AC permanent magnet protected type booster pump |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1897439B1 (en) | 2014-10-22 |
| DE102006041317A1 (en) | 2008-03-20 |
| US20080056911A1 (en) | 2008-03-06 |
| CN101135312A (en) | 2008-03-05 |
| EP1897439A1 (en) | 2008-03-12 |
| CN101135312B (en) | 2011-07-20 |
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