WO2001007783A1 - Control or monitor of equipment at remote sites - Google Patents

Control or monitor of equipment at remote sites Download PDF

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Publication number
WO2001007783A1
WO2001007783A1 PCT/GB2000/002831 GB0002831W WO0107783A1 WO 2001007783 A1 WO2001007783 A1 WO 2001007783A1 GB 0002831 W GB0002831 W GB 0002831W WO 0107783 A1 WO0107783 A1 WO 0107783A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
magnet
restriction
water
bypass line
Prior art date
Application number
PCT/GB2000/002831
Other languages
French (fr)
Inventor
Gregory Francis Lloyd
Original Assignee
South Staffordshire Group Plc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by South Staffordshire Group Plc filed Critical South Staffordshire Group Plc
Priority to AU60073/00A priority Critical patent/AU6007300A/en
Publication of WO2001007783A1 publication Critical patent/WO2001007783A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines

Definitions

  • the invention relates to the control or monitor of equipment at remote sites.
  • sites can be water supply installations, e.g. valve schemes and pressure and flow monitoring schemes and be off the beaten track. From time to time things go wrong at the site and there is a need to alert operatives at the centre of the malfunction. Where it is not clear what the malfunction is, money may be wasted in sending the wrong technician, e.g. a mechanical engineer instead of an electrical one to the remote site.
  • apparatus for use in controlling or monitoring equipment at a site having mains water supply, the apparatus comprising: • an electrical control or monitor device;
  • charging means for charging the DC battery comprising a restriction in the mains water supply pipe; a bypass through which mains water flows, the inlet of the bypass line being upstream of the restriction and the outlet side being downstream of the restriction, means being present in the bypass line, arranged to be rotated by the flow of water thereover to drive a dynamo or generator.
  • the charge up means driven by the turbine means is preferably constructed to avoid the need for a drive shaft having seals.
  • the turbine means includes one magnet located with another, the first magnet being part of the turbine, the second having a drive shaft arranged so that rotation of the second magnet caused by rotation of the first magnet drives a dynamo or generator.
  • the electricity is generated using means which does not intrude into the mains water pipe.
  • the turbine means is located in a bypass line.
  • the water turbine device is connected to the water main by a small bore (10 mm typical) bypass, which does not intrude into the water main pipe.
  • the water turbine device is driven by a differential pressure across a valve (or other restriction) in the main water pipe.
  • the water turbine device is not arranged to be flow dependent on the main water pipe (the valve or restriction could be completely closed therefore preventing flow but generating a pressure difference).
  • the pressure difference will need to be of sufficient size to be capable of generating sufficient electrical energy to meet the system requirements.
  • the apparatus is arranged to operate using surplus energy provided by the water mains pressure, this is to say that the flow rate through the turbine is sufficiently low as to ensure that over-pressurisation of the water main and associated supply area does not occur.
  • the system should preferably be designed, i.e. the dimensions of the bypass selected, to operate on flows of no greater than about 0.5 1/s.
  • the turbine device should be of low volume, capable of withstanding pressures up to 200m head (20 bar), provide a low friction rotary drive and be suitable for contact with potable water.
  • the generator should be capable of meeting the electrical power requirements and possibly be waterproof due to its working environment.
  • the apparatus should need low maintenance, have an efficiency of at least 30% and have a life expectancy of at least two years continuous operation.
  • the water powered battery charger and a small dynamo/generator driven by the water turbine generator are connected to one or more batteries which are charged from the generator via a charging circuit.
  • the apparatus is arranged to provide a DC voltage, e.g. 12v or 24v at a minimum current rating of approximately 1 amp.
  • a power source can continuously power a variety of telemetry monitoring and control equipment.
  • a 24v DC version should be capable of powering a 24v DC valve actuator for the main water supply, assuming that the actuator operates for say the equivalent of 2 hours continuous operation per day).
  • This is a particularly advantageous embodiment of the invention in that it is the water pressure difference caused as a result of the presence of the valve which is the prime source of the electrical power for actuation of the valve.
  • the apparatus is adapted to provide electrical power for a variety of equipment such as UHF radio equipment used for pressure monitoring transmission, pressure management control systems and data loggers.
  • Figure 1 is a block diagram showing the layout of one battery charging circuit
  • Figure 2 is a block diagram showing one installation incorporating the circuit of Figure 1 and connected to a valve actuator and a cellular data communicator;
  • Figures 3A and 3B are respectively an elevation and plan view of a turbine device used in the circuit of Figure 1 ;
  • Figure 4 is a partial sectional view of a magnetically coupled water turbine and electricity generator.
  • FIG 5A is a partial vertical sectional view of an integral water turbine driven permanent magnetic electricity generator and Figure 5B is a transverse section thereof.
  • a differential pressure exists across a main valve or other restriction device 2 in a water main pipe 1 having a typical diameter of 150 mm.
  • the water pressure on the upstream side of the valve or restriction 2 is higher than the pressure on the downstream side.
  • the pressure upstream may be 70mhd and downstream 40mhd.
  • a bypass circuit 3 is present, bridging the main pipe 1 on each side of the main valve or restriction 2.
  • the bypass circuit 3 is a small bore pipe, say 10 mm, having an isolating valve 4 on each side of the main valve 2.
  • a water turbinelike device 5 is present in the bypass circuit 3 and is connected to a dynamo/generator 6, connected to a charging circuit 7 linked to a 12v or 24v battery supply 8.
  • the structure of some devices 5 is shown in Figure 3, 4 and 5.
  • the turbine-like device 5 and associated charging components can form one unit U and be located in a box in an above or below ground installation.
  • the unit is located underground at a site remote from a control centre.
  • Figure 2 shows an installation incorporating the circuit of Figure 1 and associated data measurement and transmission components.
  • a flowmeter 10 is present downstream of the valve 2.
  • the meter 10 passes an output signal to a flow pulse output unit 11 which passes its signal to a valve controller/logger 12.
  • This communicates with a valve actuator 13 and is powered from a power line from the charge unit U.
  • the controller/logger 12 communicates with a cellular data transmitter 14 which is also powered by the charge unit U.
  • the charge circuit can operate a number of components, yet still be self sufficient, compact and efficient in use.
  • Figure 3 shows one turbine device 20.
  • This consists of a rotor 21 having radially spaced apart blades 22 arranged so that water entering a tangential inlet 23 can flow over the blades 22 and exit via a central outlet 24.
  • an axle 25 covered with magnetic material and which is received in a socket housing 26 of magnetic material at the end of the generator drive shaft 27.
  • the turbine is thus magnetically coupled to the drive shaft. The water flow rotates the shaft and so cause charge up.
  • bypass circuit 3 In operation the bypass circuit 3 is opened from time to time or continuously and the turbine-like device 5 powers up the dynamo 6 which in turn powers the charging circuit 7 to keep the battery 8 in power.
  • the charging means of Figure 4 comprises a drive shaft 31 extending from an electricity generator 32 and terminating in a cup shaped magnet 33A.
  • the cup contains a second magnet 33B in the form of a bifurcated shank and surrounding a post 34 depending from the underside of a roof 35.
  • An infill 36 forming a watertight seal is present between the two magnets 33 A, 33B.
  • the head has an inlet for water 37 at one side and an outlet 38 in the top of the roof 35 and the outside is formed with turbine blades 39.
  • the device of Figure 4 is fitted in a circuit as shown in Figures 1 and 2.
  • the water enters the inlet 37 and exits via the outlet 38.
  • the turbine As the water flows the turbine the integral magnet 33A setting up a force field which causes magnet 33B to rotate so rotating the drive shaft 31 to power up the DC battery.
  • one magnet 33B is integrated with the turbine (as in the Figure 4 embodiment) and the other 33A with the generator.
  • the magnet 33 A is made up of laminated pole pieces 40 about the permanent magnet 33B and joined at one end to a laminated iron core 41 within a coil winding 42. Rotation of the turbine rotates the permanent magnet 33B which induces an electromotive force in the coil 42. This obviates the need for a separate generator.
  • Equipment (not shown) can be powered to operate valves, measure flow rates, transmit signals and the like.
  • PLC Programmable Logic Controller
  • Valve Actuator 24 10.000 2 Hrs/Day

Abstract

A battery (8) charged up by rotation of a turbine (5) in a bypass line (3) bridging a restriction (2) in a mains water supply. The turbine causes an electric generator (6) to rotate powering up a charge circuit (7) for the battery (8).

Description

CONTROL OR MONITOR OF EQUIPMENT AT REMOTE SITES
The invention relates to the control or monitor of equipment at remote sites. Such sites can be water supply installations, e.g. valve schemes and pressure and flow monitoring schemes and be off the beaten track. From time to time things go wrong at the site and there is a need to alert operatives at the centre of the malfunction. Where it is not clear what the malfunction is, money may be wasted in sending the wrong technician, e.g. a mechanical engineer instead of an electrical one to the remote site.
It is known to install telemetry equipment to enable one to sense the condition of the sites either for routine checking or to sound an alarm. Mains supply electricity is not available (or cannot be installed at reasonable cost) and wind power generators and solar panels are not suitable. This is especially the case where the apparatus is to be installed below ground level. It is known to locate a turbine in a mains water supply, the turbine being driven by the flow of water. A system of this type may be associated with a domestic water supply or for irrigation of fields. In some cases the rotation of the turbine is used to provide information for the determination of water use charges. Such a system is not suitable for use at a remote location. It is an object of this invention to provide means for providing power which is convenient to install with no disruption to the mains supply, substantially maintenance free and reliable in use.
According to the invention in one aspect there is provided apparatus for use in controlling or monitoring equipment at a site having mains water supply, the apparatus comprising: • an electrical control or monitor device;
• a DC battery to supply power to the electric device;
• charging means for charging the DC battery, the charging means comprising a restriction in the mains water supply pipe; a bypass through which mains water flows, the inlet of the bypass line being upstream of the restriction and the outlet side being downstream of the restriction, means being present in the bypass line, arranged to be rotated by the flow of water thereover to drive a dynamo or generator.
The charge up means driven by the turbine means is preferably constructed to avoid the need for a drive shaft having seals. In one preferred embodiment the turbine means includes one magnet located with another, the first magnet being part of the turbine, the second having a drive shaft arranged so that rotation of the second magnet caused by rotation of the first magnet drives a dynamo or generator.
It is a feature of the invention that the electricity is generated using means which does not intrude into the mains water pipe. For this reason the turbine means is located in a bypass line. Preferably, the water turbine device is connected to the water main by a small bore (10 mm typical) bypass, which does not intrude into the water main pipe. The water turbine device is driven by a differential pressure across a valve (or other restriction) in the main water pipe. The water turbine device is not arranged to be flow dependent on the main water pipe (the valve or restriction could be completely closed therefore preventing flow but generating a pressure difference). The pressure difference will need to be of sufficient size to be capable of generating sufficient electrical energy to meet the system requirements. The apparatus is arranged to operate using surplus energy provided by the water mains pressure, this is to say that the flow rate through the turbine is sufficiently low as to ensure that over-pressurisation of the water main and associated supply area does not occur. To this end the system should preferably be designed, i.e. the dimensions of the bypass selected, to operate on flows of no greater than about 0.5 1/s.
The turbine device should be of low volume, capable of withstanding pressures up to 200m head (20 bar), provide a low friction rotary drive and be suitable for contact with potable water. The generator should be capable of meeting the electrical power requirements and possibly be waterproof due to its working environment. The apparatus should need low maintenance, have an efficiency of at least 30% and have a life expectancy of at least two years continuous operation.
The water powered battery charger and a small dynamo/generator driven by the water turbine generator are connected to one or more batteries which are charged from the generator via a charging circuit. The apparatus is arranged to provide a DC voltage, e.g. 12v or 24v at a minimum current rating of approximately 1 amp. Such a power source can continuously power a variety of telemetry monitoring and control equipment. (A 24v DC version should be capable of powering a 24v DC valve actuator for the main water supply, assuming that the actuator operates for say the equivalent of 2 hours continuous operation per day). This is a particularly advantageous embodiment of the invention in that it is the water pressure difference caused as a result of the presence of the valve which is the prime source of the electrical power for actuation of the valve. The apparatus is adapted to provide electrical power for a variety of equipment such as UHF radio equipment used for pressure monitoring transmission, pressure management control systems and data loggers.
In order that the invention may be well understood it will now be described by way of example only, with reference to the accompanying diagrammatic drawings, in which:
Figure 1 is a block diagram showing the layout of one battery charging circuit;
Figure 2 is a block diagram showing one installation incorporating the circuit of Figure 1 and connected to a valve actuator and a cellular data communicator;
Figures 3A and 3B are respectively an elevation and plan view of a turbine device used in the circuit of Figure 1 ;
Figure 4 is a partial sectional view of a magnetically coupled water turbine and electricity generator; and
Figure 5A is a partial vertical sectional view of an integral water turbine driven permanent magnetic electricity generator and Figure 5B is a transverse section thereof. As shown in Figure 1 , a differential pressure exists across a main valve or other restriction device 2 in a water main pipe 1 having a typical diameter of 150 mm. The water pressure on the upstream side of the valve or restriction 2 is higher than the pressure on the downstream side. For example the pressure upstream may be 70mhd and downstream 40mhd. According to the invention a bypass circuit 3 is present, bridging the main pipe 1 on each side of the main valve or restriction 2. The bypass circuit 3 is a small bore pipe, say 10 mm, having an isolating valve 4 on each side of the main valve 2. A water turbinelike device 5 is present in the bypass circuit 3 and is connected to a dynamo/generator 6, connected to a charging circuit 7 linked to a 12v or 24v battery supply 8. The structure of some devices 5 is shown in Figure 3, 4 and 5.
The turbine-like device 5 and associated charging components can form one unit U and be located in a box in an above or below ground installation. Preferably the unit is located underground at a site remote from a control centre.
Figure 2 shows an installation incorporating the circuit of Figure 1 and associated data measurement and transmission components. A flowmeter 10 is present downstream of the valve 2. The meter 10 passes an output signal to a flow pulse output unit 11 which passes its signal to a valve controller/logger 12. This communicates with a valve actuator 13 and is powered from a power line from the charge unit U. The controller/logger 12 communicates with a cellular data transmitter 14 which is also powered by the charge unit U. As will be seen, the charge circuit can operate a number of components, yet still be self sufficient, compact and efficient in use. Figure 3 shows one turbine device 20. This consists of a rotor 21 having radially spaced apart blades 22 arranged so that water entering a tangential inlet 23 can flow over the blades 22 and exit via a central outlet 24. At one side there is an axle 25 covered with magnetic material and which is received in a socket housing 26 of magnetic material at the end of the generator drive shaft 27. The turbine is thus magnetically coupled to the drive shaft. The water flow rotates the shaft and so cause charge up.
In operation the bypass circuit 3 is opened from time to time or continuously and the turbine-like device 5 powers up the dynamo 6 which in turn powers the charging circuit 7 to keep the battery 8 in power.
The charging means of Figure 4 comprises a drive shaft 31 extending from an electricity generator 32 and terminating in a cup shaped magnet 33A. The cup contains a second magnet 33B in the form of a bifurcated shank and surrounding a post 34 depending from the underside of a roof 35. An infill 36 forming a watertight seal is present between the two magnets 33 A, 33B. The head has an inlet for water 37 at one side and an outlet 38 in the top of the roof 35 and the outside is formed with turbine blades 39.
The device of Figure 4 is fitted in a circuit as shown in Figures 1 and 2. The water enters the inlet 37 and exits via the outlet 38. As the water flows the turbine the integral magnet 33A setting up a force field which causes magnet 33B to rotate so rotating the drive shaft 31 to power up the DC battery. In the embodiment of Figures 5A and 5B, one magnet 33B is integrated with the turbine (as in the Figure 4 embodiment) and the other 33A with the generator. In this case the magnet 33 A is made up of laminated pole pieces 40 about the permanent magnet 33B and joined at one end to a laminated iron core 41 within a coil winding 42. Rotation of the turbine rotates the permanent magnet 33B which induces an electromotive force in the coil 42. This obviates the need for a separate generator.
Equipment (not shown) can be powered to operate valves, measure flow rates, transmit signals and the like.
The typical power requirements of a variety of equipment which may be powered from the proposed power supply are shown below:
Equipment Voltage DC Current Frequency (Amps)
Data Logger 12 0.005 Continuous
Programmable Logic Controller (PLC) 24 0.800 Continuous
Pressure Transducer 12 - 24 0.020 Continuous
Solenoid Valve 24 0.500 Continuous
UHF Radio Telmetry Link @ 500mW 12 1.000 Continuous
Valve Actuator 24 10.000 2 Hrs/Day

Claims

1. Apparatus for use in controlling or monitoring equipment at a site having mains water supply, the apparatus comprising:
• an electrical control or monitor device;
• a DC battery to supply power to the electric device;
• charging means for charging the DC battery, the charging means comprising a restriction in the mains water supply pipe; a bypass through which mains water flows, the inlet of the bypass line being upstream of the restriction and the outlet side being downstream of the restriction, means being present in the bypass line, arranged to be rotated by the flow of water thereover to drive a dynamo or generator.
2. Apparatus according to Claim 1, wherein the means present in the bypass line is arranged to be rotated at a flow rate of less than 0.5 1/s.
3. Apparatus according to Claim 2, wherein the bypass line has a diameter of the order of 10mm.
4. Apparatus according to any preceding Claim, wherein the drive means driven by the turbine means is constructed to avoid the need for a drive shaft having seals.
5. Apparatus according to Claim 4, wherein the turbine means comprises one magnet located with another, the first magnet being part of the turbine, the second having a drive shaft arranged so that rotation of the second magnet caused by rotation of the first magnet drives a generator.
6. Apparatus according to Claim 5, wherein rotation of the first magnet is arranged to induce an electromotive force in a surrounding coil.
7. Apparatus according to any preceding Claim, wherein the electrical control or monitor device is telemetry monitoring and control equipment.
8. Apparatus according to any preceding Claim, in the form of a self-contained unit capable of being set in a substrate at a site which is remote from a control centre.
PCT/GB2000/002831 1999-07-23 2000-07-21 Control or monitor of equipment at remote sites WO2001007783A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60073/00A AU6007300A (en) 1999-07-23 2000-07-21 Control or monitor of equipment at remote sites

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9917402.1 1999-07-23
GBGB9917402.1A GB9917402D0 (en) 1999-07-23 1999-07-23 Control or monitor of equipment at remote sites

Publications (1)

Publication Number Publication Date
WO2001007783A1 true WO2001007783A1 (en) 2001-02-01

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PCT/GB2000/002831 WO2001007783A1 (en) 1999-07-23 2000-07-21 Control or monitor of equipment at remote sites

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AU (1) AU6007300A (en)
GB (2) GB9917402D0 (en)
WO (1) WO2001007783A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2112371A1 (en) * 2008-04-23 2009-10-28 Acque Ingegneria S.r.l. Method and apparatus for powering fluid transport related electrical devices
WO2011014187A1 (en) * 2009-07-31 2011-02-03 Capstone Metering Llc Self-calibrating and self-powered water meter
WO2012049549A3 (en) * 2010-10-11 2012-06-14 Cla-Val Co. System for controlled hydroelectric power generation
CN102828889A (en) * 2012-08-24 2012-12-19 哈尔滨工业大学 Self-powered device and self-powered method for pressure data collector of heat network
US8690117B2 (en) 2006-05-04 2014-04-08 Capstone Metering Llc Water meter
US8866634B2 (en) 2006-05-04 2014-10-21 Capstone Metering Llc System and method for remotely monitoring and controlling a water meter
US20150102603A1 (en) * 2012-06-19 2015-04-16 Sensus Spectrum Llc Method and device for supplying a measurement electronics system with electrical energy
EP3023632A1 (en) * 2014-11-20 2016-05-25 Honeywell Technologies Sarl System for harvesting energy from a fluid installation system and fluid installation system
WO2018145790A1 (en) * 2017-02-13 2018-08-16 Innogy Se Watering control device

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
NO20070425L (en) * 2007-01-23 2008-07-24 Tom Jensen Apparatus and method for using micro power plants

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750001A (en) * 1969-11-28 1973-07-31 E Mccloskey Remote, completely self-contained, self-maintaining power supply apparatus for powering a pressurized-liquid distributing and disseminating system
JPS5717024A (en) * 1980-07-04 1982-01-28 Hitachi Ltd Discharge flow rate automatic control method for motive power recovering device
US4654537A (en) * 1985-01-24 1987-03-31 Baker Cac Flowline power generator
US4963780A (en) * 1988-09-27 1990-10-16 Kwc Ag Water driven generator for sanitary domestic installation
US5043592A (en) * 1988-09-27 1991-08-27 Kwc Ag Water fitting for sanitary installations
FR2686376A1 (en) * 1992-01-22 1993-07-23 Technicatome Turbo-generator (turbine-type generator) driven by a gas/liquid mixture

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54141166A (en) * 1978-04-25 1979-11-02 Toukiyouto Water meter
GB2257476B (en) * 1991-06-26 1995-09-27 Airdri Ltd Water powered control system
GB9308379D0 (en) * 1993-04-22 1993-06-09 Thames Water Utilities Consumption meter
JP3687705B2 (en) * 1996-08-23 2005-08-24 愛知時計電機株式会社 Agricultural water flow meter using a valve equipped with an opening meter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750001A (en) * 1969-11-28 1973-07-31 E Mccloskey Remote, completely self-contained, self-maintaining power supply apparatus for powering a pressurized-liquid distributing and disseminating system
JPS5717024A (en) * 1980-07-04 1982-01-28 Hitachi Ltd Discharge flow rate automatic control method for motive power recovering device
US4654537A (en) * 1985-01-24 1987-03-31 Baker Cac Flowline power generator
US4963780A (en) * 1988-09-27 1990-10-16 Kwc Ag Water driven generator for sanitary domestic installation
US5043592A (en) * 1988-09-27 1991-08-27 Kwc Ag Water fitting for sanitary installations
FR2686376A1 (en) * 1992-01-22 1993-07-23 Technicatome Turbo-generator (turbine-type generator) driven by a gas/liquid mixture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 079 (P - 115) 18 May 1982 (1982-05-18) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8690117B2 (en) 2006-05-04 2014-04-08 Capstone Metering Llc Water meter
US8866634B2 (en) 2006-05-04 2014-10-21 Capstone Metering Llc System and method for remotely monitoring and controlling a water meter
EP2112371A1 (en) * 2008-04-23 2009-10-28 Acque Ingegneria S.r.l. Method and apparatus for powering fluid transport related electrical devices
WO2009130030A1 (en) * 2008-04-23 2009-10-29 Acque Ingegneria S.R.L. Method and apparatus for powering fluid transport related electric devices
WO2011014187A1 (en) * 2009-07-31 2011-02-03 Capstone Metering Llc Self-calibrating and self-powered water meter
AU2009350453B2 (en) * 2009-07-31 2013-11-07 Capstone Metering Llc Self-calibrating and self-powered water meter
WO2012049549A3 (en) * 2010-10-11 2012-06-14 Cla-Val Co. System for controlled hydroelectric power generation
US20150102603A1 (en) * 2012-06-19 2015-04-16 Sensus Spectrum Llc Method and device for supplying a measurement electronics system with electrical energy
US9748818B2 (en) * 2012-06-19 2017-08-29 Sensus Spectrum Llc Method and device for supplying a measurement electronics system with electrical energy
CN102828889A (en) * 2012-08-24 2012-12-19 哈尔滨工业大学 Self-powered device and self-powered method for pressure data collector of heat network
EP3023632A1 (en) * 2014-11-20 2016-05-25 Honeywell Technologies Sarl System for harvesting energy from a fluid installation system and fluid installation system
WO2018145790A1 (en) * 2017-02-13 2018-08-16 Innogy Se Watering control device

Also Published As

Publication number Publication date
AU6007300A (en) 2001-02-13
GB2358475A (en) 2001-07-25
GB9917402D0 (en) 1999-09-22
GB0018009D0 (en) 2000-09-13

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