EP4115088A1 - Pressure-boosting system for increasing the supply pressure in the water supply of at least one extraction point or of a hydraulic consumer - Google Patents
Pressure-boosting system for increasing the supply pressure in the water supply of at least one extraction point or of a hydraulic consumerInfo
- Publication number
- EP4115088A1 EP4115088A1 EP21709656.9A EP21709656A EP4115088A1 EP 4115088 A1 EP4115088 A1 EP 4115088A1 EP 21709656 A EP21709656 A EP 21709656A EP 4115088 A1 EP4115088 A1 EP 4115088A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- pressure
- booster system
- consumer
- pressure booster
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000000605 extraction Methods 0.000 title claims abstract description 19
- 238000004804 winding Methods 0.000 claims description 17
- 230000007423 decrease Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 238000003809 water extraction Methods 0.000 abstract 1
- 239000003651 drinking water Substances 0.000 description 7
- 235000020188 drinking water Nutrition 0.000 description 6
- 230000004913 activation Effects 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
- E03B5/02—Use of pumping plants or installations; Layouts thereof arranged in buildings
-
- 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
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
- F04D15/0254—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being speed or load
Definitions
- Pressure booster system for increasing the supply pressure in the water supply to at least one extraction point or a hydraulic consumer
- the invention relates to a pressure booster system for increasing the supply pressure in the water supply of at least one extraction point or a hydraulic consumer, the pressure booster system comprising at least one electrically driven hydraulic pump.
- Pressure boosting systems are used wherever a hydraulic consumer or a tapping point should be supplied with a supply pressure that is as constant as possible and the existing system pressure fluctuates or is insufficient.
- a hydraulic consumer or a tapping point should be supplied with a supply pressure that is as constant as possible and the existing system pressure fluctuates or is insufficient.
- private and commercial households are supplied with drinking and industrial water by the water supplier.
- the water pressure provided by the water provider meets the requirements of the consumer in most cases, in particular there is sufficient water pressure for a comfortable shower experience.
- a pressure booster system must be installed in order to raise the water pressure to the desired pressure level using additional pump power.
- a pump suitable for drinking water is installed upstream in front of the consumer or the extraction point in these cases. Since continuous pump operation is uneconomical in such applications, the pump should only be operated when required, ie when water is drawn / consumed and in the rest of the time, it can be put into a so-called "sleep mode".
- the requirement status ie the detection of whether a water fitting is open or closed, can take place by means of a flow monitor installed in the supply line.
- a flow monitors installed in the supply line.
- the scenario described above relates not only to the service and drinking water supply of tapping points, but also to any systems in these tapping points or hydraulic consumers to be supplied with a certain hydraulic pressure.
- the object of the present invention is to improve known pressure boosting systems in order to ideally enable operation without additional sensors.
- the pump control is configured in such a way that it evaluates the current water consumption / the water withdrawal of at least one downstream consumer or a withdrawal point on the basis of one or more operating parameters of the pump unit of the pump.
- the pump control monitors the course of these parameters and, based on parameter changes, can recognize whether the Pump is required to increase pressure or not.
- the control can activate or deactivate the pump set as required. Deactivation means switching off the unit, the pump impeller is no longer driven by the motor. When the pump is activated, the impeller is driven by the motor at a defined speed.
- the pump unit includes an electric motor to drive the impeller.
- the pump is preferably a centrifugal pump. In the case of an electric drive, electrical operating parameters are usually observed.
- the expansion of the pump according to the invention by the corresponding control makes it possible to use the pressure booster system without additional sensors for flow measurement, such as in particular a flow monitor. Instead, this function is completely taken over by the control of the pump, which can evaluate the current demand or the flow rate in the supply line and through the pump by observing one or more operating parameters of the pump unit. It is essential for this that the controller monitors the operating parameters both when the pump unit is activated and deactivated. It is conceivable that the same parameters are observed for deactivation and activation, but different or additional parameters can also be monitored.
- the delivery flow flowing through the pump can be evaluated or changes in the delivery flow can be recorded on the basis of these motor operating parameters. If the flow rate through the pump decreases, it can be assumed that the consumption of the extraction point or the hydraulic consumer will decline or end. If there is currently no demand from the consumer or the extraction point, a zero flow rate is set through the pump and the unit remains deactivated. A demand that increases in this initial state will increase the delivery flow through the pump, which can also be reliably detected using one or more engine operating parameters and triggers activation of the pump unit.
- the controller is configured in such a way that, for example, the electrical power consumption of the pump unit or, alternatively, the current through the windings of the electric motor of the pump unit is monitored as the motor operating parameter. Using these two parameters, it is possible to draw conclusions about the flow rate through the pump and thus reliably determine an increase in the water consumption of the tapping point or the consumer.
- the control is configured in such a way that the pump assembly is switched off as soon as the control detects a decrease in the motor operating parameter, in particular a decrease in the electrical power consumption or the winding current.
- a lower power consumption or a reduced motor current means a lower motor load, which can be explained by a decrease in the flow rate.
- a definable limit value can advantageously be set. If the motor power or the winding current falls below the associated limit value, the control puts the pump into sleep mode by switching off the pump unit.
- the pump control is thus configured in such a way that, when the pump unit is deactivated, it monitors an induced voltage / current in the motor winding and preferably compares it with a definable limit value. If the limit value is exceeded, the pump set is activated.
- the pressure booster system can be used to supply at least one extraction point in the form of a shower fitting.
- the pressure booster system is also used to supply a washbasin fitting or other bathroom fitting.
- the invention can be replaced wherever at least one extraction point or at least one corresponding consumer is to be supplied with a minimum water pressure.
- the present invention also relates to a method for operating a pressure booster system.
- the hydraulic pump evaluates the water consumption or the water withdrawal of at least one consumer or one withdrawal point based on one or more operating parameters of the integral pump unit and switches the pump on or off as required by the withdrawal point and / or the consumer.
- the method is consequently characterized by the same advantages and properties as have already been explained above with reference to the pressure boosting system according to the invention. For this reason, a repetitive description is dispensed with.
- the delivery rate of the consumer or the extraction point can be assessed on the basis of the recorded electrical power consumption or the winding current of the pump assembly. It is provided that the pump unit is switched off when the electrical power consumption or the winding current falls below a specific limit value. Ideally, such a limit value can be set and changed dynamically. It is also provided that the deactivated pump unit is switched on when a defined current or a defined voltage is induced in the motor windings of the pump in the pump when it is not in operation.
- the single figure shows a water supply system for supplying water to a shower 10 in a private household.
- the amount of water required for showering leaves set by the consumer via the shower fitting 11.
- the water supply system is also equipped with a water tank 21 that is connected to the public water supply network 22.
- the shower 10 or the shower fitting 11 is supplied with drinking water from the domestic water tank 21. Since the water pressure provided by the water supplier 22 and, accordingly, the water pressure present in the domestic water tank 21 is not sufficient to supply the shower 10 with the necessary water pressure, a pump 20 suitable for drinking water is interposed between the domestic water tank 21 and the fitting 11, which feeds the water from the domestic water tank 21 Brings drinking water to the desired pressure level.
- the pump 20 suitable for drinking water in particular a centrifugal pump, should only work when the shower fitting 11 is opened and water is actually taken from the domestic water storage tank 21, the pump 20 must be able to determine the state of the shower fitting 11.
- the pump should be able to detect via an integrated software function without sensors whether the fitting 11 of the shower 10 is open or closed.
- the electrical power consumption of the electric motor driving the pump impeller and thus its winding current decrease. If, for example, the winding current falls below a predefined value, the pump switches off automatically.
- the recognition of the opening of the valve 11 is somewhat more complex, since the pump 20 has to recognize this when it is switched off.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020105670.2A DE102020105670A1 (en) | 2020-03-03 | 2020-03-03 | Pressure booster system for increasing the supply pressure in the water supply to at least one extraction point or a hydraulic consumer |
PCT/EP2021/055153 WO2021175835A1 (en) | 2020-03-03 | 2021-03-02 | Pressure-boosting system for increasing the supply pressure in the water supply of at least one extraction point or of a hydraulic consumer |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4115088A1 true EP4115088A1 (en) | 2023-01-11 |
Family
ID=74856851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21709656.9A Pending EP4115088A1 (en) | 2020-03-03 | 2021-03-02 | Pressure-boosting system for increasing the supply pressure in the water supply of at least one extraction point or of a hydraulic consumer |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4115088A1 (en) |
CN (1) | CN115151731A (en) |
DE (1) | DE102020105670A1 (en) |
WO (1) | WO2021175835A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3918246A1 (en) | 1989-06-05 | 1990-12-06 | Eggs Elektrotechnik | Water pressure intensifier system - incorporates single pump with adjustable capacity |
DE9416613U1 (en) | 1994-10-15 | 1995-01-19 | Grüterich, Heinz, 99100 Gierstädt | Pump control device |
CA2274782A1 (en) * | 1999-06-16 | 1999-11-07 | Larry O'keefe | Automatic variable demand control system for regulating the water supply in a high rise building |
EP1255174A1 (en) * | 2001-04-30 | 2002-11-06 | Starite S.p.A. | Electric Pump with automatic on-off device |
EP2806162A4 (en) * | 2011-12-27 | 2016-03-09 | Ebara Corp | Water supply device and water supply method |
DE102012006444A1 (en) | 2012-03-30 | 2013-10-02 | Wilo Se | Method for operating a pump set |
EP3156651B1 (en) | 2015-10-16 | 2021-01-20 | Grundfos Management A/S | Pressure increasing device |
-
2020
- 2020-03-03 DE DE102020105670.2A patent/DE102020105670A1/en active Pending
-
2021
- 2021-03-02 WO PCT/EP2021/055153 patent/WO2021175835A1/en unknown
- 2021-03-02 EP EP21709656.9A patent/EP4115088A1/en active Pending
- 2021-03-02 CN CN202180018569.9A patent/CN115151731A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE102020105670A1 (en) | 2021-09-09 |
CN115151731A (en) | 2022-10-04 |
WO2021175835A1 (en) | 2021-09-10 |
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Ipc: E03B 5/02 20060101ALI20240523BHEP Ipc: F04D 15/02 20060101ALI20240523BHEP Ipc: F04D 15/00 20060101AFI20240523BHEP |
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