EP0219360A1 - Betätigungsvorrichtung für eine Wasserversorgungsanlage - Google Patents

Betätigungsvorrichtung für eine Wasserversorgungsanlage Download PDF

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Publication number
EP0219360A1
EP0219360A1 EP86401545A EP86401545A EP0219360A1 EP 0219360 A1 EP0219360 A1 EP 0219360A1 EP 86401545 A EP86401545 A EP 86401545A EP 86401545 A EP86401545 A EP 86401545A EP 0219360 A1 EP0219360 A1 EP 0219360A1
Authority
EP
European Patent Office
Prior art keywords
pump
control circuit
enclosure
transducer
pressure
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
Application number
EP86401545A
Other languages
English (en)
French (fr)
Other versions
EP0219360B1 (de
Inventor
Claude Grenon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ets Pompes Guinard Dite Ste
Original Assignee
Ets Pompes Guinard Dite Ste
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9322319&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0219360(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ets Pompes Guinard Dite Ste filed Critical Ets Pompes Guinard Dite Ste
Priority to AT86401545T priority Critical patent/ATE44803T1/de
Publication of EP0219360A1 publication Critical patent/EP0219360A1/de
Application granted granted Critical
Publication of EP0219360B1 publication Critical patent/EP0219360B1/de
Expired legal-status Critical Current

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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
    • 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
    • F04B49/022—Stopping, starting, unloading or idling control by means of pressure

Definitions

  • the present invention relates to control devices of a water supply installation.
  • a device for controlling a water supply installation which comprises an airtight and water tight enclosure.
  • This enclosure opens an input intended to be connected by a non-return valve to a pump with an electric control circuit. It also leads to an outlet intended to be connected to a user device such as a tap, for example, a shower.
  • the enclosure is provided with means for reducing its volume when the pressure therein decreases. (Exponent type hydrostat supplied by EXPO / S in Lillesand Norway).
  • This device has the great advantage of eliminating continual pressure variations in the installation, which are unpleasant to the user, compared with the prior known devices with reservoir and pressure switch, interposed between the pump and the tap.
  • this Norwegian device comprises a body in which are delimited a first chamber where the water arrives from the pump by a non-return valve.
  • the pressure in this chamber depends directly on the pressure delivered by the pump.
  • a second air chamber is planned.
  • the pre-inflation pressure in this chamber determines the pump start-up pressure.
  • a third chamber is separated from the second by a piston and from the first by a valve with a nozzle.
  • the air pressure in the second chamber lowers the piston which separates the second chamber from the third chamber.
  • a magnet carried by the upper part of the piston releases the contactor which controls the pump and, on power-up, the pump starts.
  • the piston in the low position pushes the valve separating the first chamber from the third chamber and puts these chambers in communication.
  • Water from the pump passes through the first chamber and goes to the third chamber through the open valve. If the tap is closed, the pressure increases in the third chamber and pushes back the piston which separates the second chamber from the third chamber. Going up, the piston releases the valve which closes. Water continues to penetrate gently into the third chamber through the nozzle by pushing the piston. In the high position of the piston, the magnet opens the contactor and stops the pump. When the tap is opened, water flows from the third chamber. The air pressure in the second chamber pushes the piston back. The magnet attached to the piston descends and establishes the power contact for the pump which starts. If the pump flow is higher than the tap flow, the pressure rises in the third chamber and causes the piston to be pushed back to the second bedroom.
  • This device can only operate in a vertical position. In the other positions, the movement of the magnet, obtained using springs, is hindered.
  • This device is complex because it includes a large number of moving parts.
  • the nozzle may be clogged with water impurities or with limescale.
  • the pressure can no longer increase in the third chamber and push back the piston to stop the pump.
  • a relatively large pressure variation of 0.6 to 1.4 bar is required depending on the pre-inflation pressure of the second chamber. This pressure variation is linked to the stroke of the piston to establish or cut the contact which controls the pump.
  • the major drawback is that if the tap is open, the pump starts and continues to operate, even if it does not flow (for example because there is no more water in the well, because the pump is defused, because a pipe is clogged, etc.). This operation without flow or without water causes rapid destruction of the pump. And even if the tap is closed in such an operating case, as the pump no longer provides flow, the pressure in the third chamber cannot rise and command the stopping of the pump.
  • the device according to the invention overcomes the aforementioned drawbacks by allowing operation in a position other than vertical, while having few moving parts. Any danger of clogging of a nozzle is eliminated.
  • the pressure variation which is necessary to control the cycles of starting and stopping of the pump is much less than before, which makes it possible to use pumps whose characteristic is relatively flat (curve of variation of the height as a function of flow).
  • the device according to the invention provides unparalleled security compared to the prior device when the pump is operating without delivering by the fact that, in this case, the pump stops operating soon after the incident.
  • the control device is characterized in that the non-return valve cooperates with a second transducer intended to energize the circuit of the pump when the non-return valve is open, the two transducers being electrically connected according to two branches in parallel on the electrical circuit for controlling the pump and the first transducer is connected to the electrical circuit for controlling the pump by a relay for de-energizing its connection branch after a prescribed period.
  • the installation represented in FIG. 1 comprises a well 1 of water communicating by a conduit 2 with the admission of a pump 3.
  • the discharge of the pump communicates by a conduit 4 with a tap 5, a device 6 according to the the invention being mounted on this conduit 4.
  • the device according to the invention is shown in Figure 2. It comprises a body 7 of airtight and watertight plastic. This body is provided with an inlet 8 intended to be connected to the pump 3 and an outlet 9 intended to be connected to the tap 5.
  • the interior of the body is subdivided by a partition 10 into a compartment 11 for housing the circuits electrical and in an enclosure 12 into which open the inlet and outlet 8 and 9.
  • a membrane which could be elastic where the required elasticity could be imparted by a spring and which, in this case, receives its elasticity through a air 14, extends in the enclosure by resting on a cup 15 provided with two orifices 16 and 17.
  • the cup also provides, around the orifice 17, a sleeve 18.
  • a pre-inflation valve 19 is provided to allow the compartment 14 to be inflated by introducing air into it.
  • a rod 20 is pushed back by the membrane 13 while being guided by the sleeve. It enters by its opposite end into a housing formed by a sheath 21 molded with the wall 10.
  • a flange 22 on which the end of a re .. .. is supported helical 23 whose other end rests on an inner shoulder 24 of the sheath 21.
  • two magnets are embedded 25 in the end of the rod 20 opposite the membrane 13, two magnets are embedded 25. Opposite these magnets when the rod 20 is pressed as far as possible into the sheath 21, there is a Hall effect cell 26 soldered to a printed circuit 27 constituting the control circuit of the pump 3.
  • the cell 26 is connected to the printed circuit 27 by means of a relay 28 for de-energizing the branch of the circuit on which is mounted cell 26 after a prescribed time, in this case 6 seconds.
  • the membrane 13 and the compartment 14 constitute means for reducing the volume of the enclosure 12 while the pressure prevailing therein decreases. All of the parts 20 to 26 constitute a first transducer intended to energize the electrical circuit controlling the pump when the volume of the enclosure has decreased to a given value, in this case when the membrane 13 s apply tightly to cup 15.
  • a non-return valve 29 comprising a disc 30 and a pusher 31 whose free end is housed in a cavity of the sleeve 21 for guidance purposes.
  • a helical return spring 32 Between the sheath 21 and the valve 30 is mounted, around the rod 31, a helical return spring 32. From the periphery of the disc 30 protrudes a protrusion 33 carrying two magnets 34. Near these magnets 34 and on the other side of the wall 10, there is a Hall effect cell 35, the legs 36 of which form connecting branches are soldered to the printed circuit 27 serving as a control circuit of the pump 3.
  • An indicator light 37 makes it possible to see if the circuit 27 is energized.
  • An indicator light 38 makes it possible to see if the Hall effect cell 26 is energized.
  • An indicator light 39 makes it possible to see if the Hall effect cell 35 is energized.
  • a push button 40 with exit button enables the circuit 27 to be energized from the outside independently of the connection of cells 26 and 35.
  • the control device according to the invention operates in the following manner.
  • the pump 3 does not work and the valve 5 is closed.
  • the non-return valve 29 is applied to its seat.
  • the rod 20 is in the low position, which means that the magnets 25 are distant from the cell 26.
  • the membrane 13 is not applied to the cup 15 so that the volume of the enclosure 12 is relatively large.
  • the water therein is under a pressure of 3 bar, the pressure of compartment 14 being of course also 3 bar.
  • the tap 5 has been opened.
  • the pressure in the enclosure 12 decreases to 1 bar.
  • the membrane 13 tends to be applied against the cup 15 by reducing the volume of the enclosure 12.
  • the pressure in the compartment 14 comes back to 1 bar, which is the pre-inflation pressure obtained by the valve 19, of the water passing of the space between the membrane 13 and the cup 15 in the enclosure 12 through the hole 16.
  • the membrane 13 pushes the rod 20 against the spring 23.
  • the magnets 25 come opposite the cell 26 and the 'excite.
  • the cell 26 controls via the relay 28 the electrical circuit 27 for controlling the pump. Pump 3 is running.
  • Figure 6 shows the normal operating state of the installation.
  • the membrane 13 has moved away from the cup 15, and the rod 20 no longer being pushed back by the membrane, the spring 23 pushes the flange 22 on the edge of the sleeve 18.
  • the magnets 25 move away from cell 26 and de-energize it.
  • the motor control circuit 27 remains energized, however, due to the cooperation of the magnets 34 and the cell 35, the distance of the magnets 34 from the cell 35 causing the latter to energize the circuit 27 while f when the magnets 34 are facing the cell 35 when the non-return valve 29 is applied to its seat, the cell ceases to energize the circuit 27.
  • valve 5 has been closed.
  • the pressure in the enclosure 12 rises to 3 bar.
  • the non-return valve 29 is again applied to its seat under the action of the spring 32, since the pressure on either side of the valve is the same.
  • the magnets 34 again come in front of the cell 35. The latter deactivates the circuit 27. Pump 3 stops. We find the position of Figure 3 and the device is ready to perform a new cycle.
  • Hall effect cells one could also use flexible reed switches or other transducer elements capable of opening or closing an electrical circuit in response to the detection of a displacement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Massaging Devices (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Domestic Plumbing Installations (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Water Treatment By Sorption (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Flow Control (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP86401545A 1985-08-21 1986-07-10 Betätigungsvorrichtung für eine Wasserversorgungsanlage Expired EP0219360B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86401545T ATE44803T1 (de) 1985-08-21 1986-07-10 Betaetigungsvorrichtung fuer eine wasserversorgungsanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8512573 1985-08-21
FR8512573A FR2586457B1 (fr) 1985-08-21 1985-08-21 Dispositif de commande d'une installation d'alimentation en eau

Publications (2)

Publication Number Publication Date
EP0219360A1 true EP0219360A1 (de) 1987-04-22
EP0219360B1 EP0219360B1 (de) 1989-07-19

Family

ID=9322319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401545A Expired EP0219360B1 (de) 1985-08-21 1986-07-10 Betätigungsvorrichtung für eine Wasserversorgungsanlage

Country Status (7)

Country Link
EP (1) EP0219360B1 (de)
JP (1) JPS6350697A (de)
AT (1) ATE44803T1 (de)
DE (1) DE3664513D1 (de)
ES (1) ES8707588A1 (de)
FR (1) FR2586457B1 (de)
PT (1) PT83216B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321376A2 (de) * 1987-12-18 1989-06-21 Fernando Banus Garcia Start- und Anhaltekontrollvorrichtung einer hydraulischen Pumpe
EP0539721A1 (de) * 1991-10-21 1993-05-05 WATERTECH S.r.l. Steuervorrichtung zum Ein- und Ausschalten einer Pumpe in einem Wasserversorgungsnetz
WO1998036339A1 (en) * 1997-02-13 1998-08-20 Hydroservice S.R.L. A self-regulating computerized proportional control device for a water pump
US5927950A (en) * 1996-05-03 1999-07-27 Lapa Services S.R.L. Device for controlling the supply of water (or other liquid) by a pump and for protecting the same in the event of dry running
EP0915256A3 (de) * 1997-11-04 2000-05-03 Fernando Banus Garcia Vorrichtung zum Starten und Anhalten einer hydraulischen Pumpe
ES2177371A1 (es) * 1999-11-11 2002-12-01 Bogemar Sl Regulador de presion para una instalacion de impulsion de agua mediante electrobomba.
EP1479911A1 (de) * 2003-05-23 2004-11-24 Enrico Raddi Kleine Druckspeicheranordnung für Trinkwassersystem
WO2005035985A1 (en) * 2003-10-17 2005-04-21 Mac 3 S.P.A. Device for automatically controlling a hydraulic pump
CN101914935B (zh) * 2008-12-04 2012-09-05 恩里科·拉迪 驱动用于分配液体的本地分配网的供应的电动泵的调整组

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4858102B2 (ja) * 2006-11-14 2012-01-18 富士ゼロックス株式会社 シート屑処理装置及びこれを用いた画像形成装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1146007B (de) * 1959-02-25 1963-03-21 Odd Fredheim Johnsen Wasserversorgungsanlage
DE1291292B (de) * 1961-10-06 1969-03-20 Berger Gerard Georges Jean Von einer Motorpumpe gespeiste Wasserversorgungsanlage
US4124331A (en) * 1976-12-30 1978-11-07 Hitachi, Ltd. Automatic control systems for a well pump installation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1146007B (de) * 1959-02-25 1963-03-21 Odd Fredheim Johnsen Wasserversorgungsanlage
DE1291292B (de) * 1961-10-06 1969-03-20 Berger Gerard Georges Jean Von einer Motorpumpe gespeiste Wasserversorgungsanlage
US4124331A (en) * 1976-12-30 1978-11-07 Hitachi, Ltd. Automatic control systems for a well pump installation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321376A2 (de) * 1987-12-18 1989-06-21 Fernando Banus Garcia Start- und Anhaltekontrollvorrichtung einer hydraulischen Pumpe
EP0321376A3 (en) * 1987-12-18 1989-10-25 Fernando Banus Garcia Apparatus for controlling start up and stop down of a hydraulic pump
EP0539721A1 (de) * 1991-10-21 1993-05-05 WATERTECH S.r.l. Steuervorrichtung zum Ein- und Ausschalten einer Pumpe in einem Wasserversorgungsnetz
US5927950A (en) * 1996-05-03 1999-07-27 Lapa Services S.R.L. Device for controlling the supply of water (or other liquid) by a pump and for protecting the same in the event of dry running
WO1998036339A1 (en) * 1997-02-13 1998-08-20 Hydroservice S.R.L. A self-regulating computerized proportional control device for a water pump
EP0915256A3 (de) * 1997-11-04 2000-05-03 Fernando Banus Garcia Vorrichtung zum Starten und Anhalten einer hydraulischen Pumpe
ES2177371A1 (es) * 1999-11-11 2002-12-01 Bogemar Sl Regulador de presion para una instalacion de impulsion de agua mediante electrobomba.
EP1479911A1 (de) * 2003-05-23 2004-11-24 Enrico Raddi Kleine Druckspeicheranordnung für Trinkwassersystem
WO2005035985A1 (en) * 2003-10-17 2005-04-21 Mac 3 S.P.A. Device for automatically controlling a hydraulic pump
CN101914935B (zh) * 2008-12-04 2012-09-05 恩里科·拉迪 驱动用于分配液体的本地分配网的供应的电动泵的调整组

Also Published As

Publication number Publication date
ATE44803T1 (de) 1989-08-15
PT83216B (pt) 1992-10-30
EP0219360B1 (de) 1989-07-19
ES8707588A1 (es) 1987-08-16
PT83216A (fr) 1986-09-01
JPS6350697A (ja) 1988-03-03
FR2586457B1 (fr) 1989-06-23
FR2586457A1 (fr) 1987-02-27
DE3664513D1 (en) 1989-08-24
ES556941A0 (es) 1987-08-16

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