EP0863278B1 - Betriebsüberwachungssystem einer Pumpe - Google Patents

Betriebsüberwachungssystem einer Pumpe Download PDF

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Publication number
EP0863278B1
EP0863278B1 EP98500060A EP98500060A EP0863278B1 EP 0863278 B1 EP0863278 B1 EP 0863278B1 EP 98500060 A EP98500060 A EP 98500060A EP 98500060 A EP98500060 A EP 98500060A EP 0863278 B1 EP0863278 B1 EP 0863278B1
Authority
EP
European Patent Office
Prior art keywords
pump
timer
pressure
signal
relay
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.)
Expired - Lifetime
Application number
EP98500060A
Other languages
English (en)
French (fr)
Other versions
EP0863278A3 (de
EP0863278A2 (de
Inventor
Francesc Xavier Vila Corts
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.)
Astral Pool Espana SA
Original Assignee
PLASTERAL SA
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
Priority claimed from ES009700479A external-priority patent/ES2138524A1/es
Priority claimed from ES9800220A external-priority patent/ES2151375B1/es
Application filed by PLASTERAL SA filed Critical PLASTERAL SA
Publication of EP0863278A2 publication Critical patent/EP0863278A2/de
Publication of EP0863278A3 publication Critical patent/EP0863278A3/de
Application granted granted Critical
Publication of EP0863278B1 publication Critical patent/EP0863278B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1218—Devices for removal of polluted water; Circumferential gutters
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/06—Safety devices; Coverings for baths

Definitions

  • the invention refers to an apparatus for controlling pump operation.
  • This apparatus is intended mainly for controlling and ensuring the safe operation of hydraulic pumps of the type installed in swimming-pools, fountains and other places where water is held, in order to suck it and circulate it through hydraulic circuits, such as filter or pumping circuits in aqua-parks (with slides and other complements) the water subsequently being sent towards the original tank or another.
  • hydraulic circuits such as filter or pumping circuits in aqua-parks (with slides and other complements) the water subsequently being sent towards the original tank or another.
  • Drains are installed at the bottom of, or next to, swimming-pools, fountains, reservoirs and other water tanks through which the water is sucked using a hydraulic pump in order to subject it to a given process and then send it towards the original tank or another.
  • the electric motor of these pumps is built in such a way that certain parts of it such as the ceramic seal or the electric winding burn out if the motor continues operating without transferring water, such as when a duct is blocked, for example.
  • the most common cause of this blockage is when a foreign object or even a human body obstructs the drain or discharge.
  • These apparatus are based on the existence of a water pressure detector, preferably located in the suction area, which in the event of any variation in pressure or vacuum present in said area, transmits an electric signal to the pump and causes same to shut down.
  • This detector device may comprise a manometer, which can be adjusted to shut down the pump or reduce its suction power by transmitting an electric signal to a relay operating the pump.
  • the objective of patent WO-A-9213195 is a circuit for a pump which employs a safety device to switch off electrical power to the pump in the case where adverse pressure conditions are produced.
  • the pump circuit includes a pump inlet conduit communicating with an inlet of the pump, an outlet conduit communicating with an outlet of the pump, a pump inlet pressure sensing line and a pump outlet pressure sensing line.
  • the sensing lines are coupled to a power shut down control unit which is connected in series with the power supply to the pump through power lines. As long as the pressure upstream or downstream of the pump remains normal, power to the pump will be maintained by the control unit. Should the pressure sensed vary beyond predetermined limits, then power to the pump would be shut down by the control unit.
  • patent DE-4300560 is a safety device for circulation pumps in boilers for heating water, which consists of temperature and pressure sensors located in the circulation pump suction piping, together with an analogue-digital converter circuit, that is connected to the sensors by conducting wires, with a micro-computer having inputs connected to the sensors, together with an output electrically connected to the analogue-digital converter.
  • noise produced by cavitation caused by the partial production of vapour if the water pressure is less than the water vapour pressure and when the pump is operating off-load sufficient feedwater enters the system circuit, is prevented and pump bearing deterioration is avoided.
  • the objective of patent US-A-4505643 is a circulating pump which pumps water between a swimming pool or other reservoir and a filter or other circulated fluid receiving apparatus.
  • a control circuit intermittently operates the circulating pump.
  • the operating circuit includes a first timer and a cycle switch which is cyclically closed to produce a pump signal for a first duration with a first periodicity.
  • the pump signal starts a second timer of a time controlled switch.
  • the second timer holds the time controlled switch conductive for a preselected time period.
  • the pump signal is conducted through a bypass switch, and the time actuated switch.
  • a low pressure switch closes conducting the pump signal around the bypass and time controlled switches.
  • a high pressure shutoff switch conducts the pump signal to a power relay coil unless a preselected high pressure is monitored.
  • the power relay coil controls relay contacts through which electric power is supplied to a pump motor.
  • the apparatus described in this invention is equipped with at least one electric signal processing microcircuit, at least one manometer, at least one relay, at least one timer, luminous indicators, acoustic or visual alarms, a selector switch to disconnect and re-connect the apparatus and a subsystem to monitor re-start up.
  • the electric signal processing microcircuit controls the flow of electric signals in accordance with a program designed for the characteristics of the water installation.
  • the manometer is set so that, in the event of any variation in the pressure beyond a certain limit, it will transmit an electric signal to the microcircuit which, in accordance with the program to be executed, sends another signal to a relay to shut down the pump motor and put the timer into operation.
  • the timer is programmable and has two functions. One is to cause the microcircuit to send a signal to the relay, after a programmed interval, to restart the pump. The other function is to disable the option of the microcircuit sending a stop signal to the relay due to low pressure, also during a programmable interval. This function is useful, as during the first moments when starting up the pump, there are short fluctuations in the pressure level in the circuit, due to the inertia of a liquid mass that is put into motion; the aim is to prevent any of these fluctuations beyond the permitted pressure limit, from causing the pump to shutdown.
  • the water pumping process will continue if the cause of the blockage has been removed. If such blockage should continue, the motor will shutdown again, and remain so during the programmed interval until the timer restarts it. If after the second or third interval the blockage persists, the system can be programmed so that the motor does not restart until manual intervention takes place.
  • the luminous indicators will light up during normal operation of the relevant element, and when said element stops, the indicator will go out, and vice versa.
  • the acoustic and/or visual alarms will activate when the pump motor shuts down.
  • the selector switch allows the user to deactivate the system, so as to empty the swimming-pool, for example, and then re-activate it when the pool is full. As a safety measure, to deactivate the system requires holding the selector switch down for no less than three seconds.
  • the restart monitoring subsystem controls all system elements and is intended to restore correct operation of each element before, or after, external anomalies, such as automatically restarting the system after a power-cut or de-blocking a blocked element, during a storm for example.
  • this control apparatus of pump 1 operation which sucks water A from swimming-pool P and impels it towards filter 2 for cleaning for subsequent return to the swimming-pool when clean, basically comprises the installation of a manometer 3 in water suction tube 4 of the swimming-pool via drain 5 whose mouth is usually protected with a grille.
  • This manometer 3 is responsible for transmitting the electric signal to a safety-cabinet 6 where the first timer 7, a relay 8, a second timer 9 and a switch 10, whose safety-box will be connected to the relevant pump switchgear cabinet (not shown).
  • This apparatus is designed so that in the event the manometer 3 interrupts pump 1 operation, the latter (or the set of pumps) will shut down for the time programmed on the first timer 7, after which time the pump will automatically resume operation for another, shorter time, programmed by the second timer 9. If the initial problem continues to exist, it will again shut down the pump, repeatedly, until the pump is shut down definitively.
  • green will indicate current and operation; red, the timer action that stops the pump; yellow, second timer operation, and the fourth colour that the pressure switch-vacuum switch is open.
  • Switch 10 will select connection or disconnection of the apparatus, for example for draining the swimming-pool with nobody present.
  • the last component of the apparatus is the installation of independent alarms which will operate acoustic/visual signals to indicate any anomaly in the apparatus operation.
  • Figure 3 shows the electric diagram of the power source represented in blocks, indicating 11, inlet of the 12, the manometer main safety timer, 13, the secondary timer, 14, the operating and signalling relays, 15, the indicator "LED's" and 16, the external connections.
  • the manometer may be installed in any part of the circuit.
  • microcircuit 17 when manometer records a pressure below the set value, it transmits an electric signal to microcircuit 17. On receiving the signal, the microcircuit sends a signal to relay 18 which cuts off the power supply to motor 19 of pump 1, thus shutting it down, and also sends a signal to timer 20 to commence count down of the time to elapse before the pump restarts.
  • timer 20 sends to microcircuit 17 the signal to operate the relay to start up motor 19 of pump 1, while at the same time blocking said microcircuit 17 so that during a time which can be set between 0 and 10 seconds, it should not respond to any low pressure signals received from manometer 3.
  • manometer 3 will again record a pressure lower to that programmed, will again transmit a signal to microcircuit 17 which will again operate relay 18, stopping motor 19 of pump 1, and will start timer 21 (which depending on electronic technology could also be timer 20 itself). After another set time, the timer repeats the above function.
  • manometer 3 will again record a pressure lower to that programmed, will again transmit a signal to microcircuit 17, and this will cause relay 18 to interrupt pump 1 operation. The timer will not start up the pump again.
  • Selector switch 24 enables to deactivate the apparatus and re-activate it.
  • the monitoring subsystem 25 is responsible for restoring correct operation after anomalies due to external causes.
  • manometer 3 sends its signal to the microcircuit of electric signals 17, which can send a signal to relay 18 to stop motor 19 of pump 1 and starts timer 20 or timer 21according to what has been envisaged or programmed. Signal leave the timer for microcircuit 17 which cause it to operate relay 18 while at the same time, during 10 seconds, they prevent any signals received from manometer 3 from being transformed in signals to relay 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Claims (5)

  1. Gerät zur Steuerung des Betriebs von Pumpen, das im Ansaugbereich des Mediums zur Pumpe (1) einen Druckmesser (3) in diesem Bereich aufweist, der bei einer Veränderung des Drucks oder Unterdrucks in diesem Bereich ein elektrisches Signal an ein Stellrelais (8, 18) der Pumpe (1) überträgt, und diese abschaltet, wobei die Stillstandszeit über einen Zeitschalter (7, 12, 20) programmiert ist, dadurch gekennzeichnet, dass der Druckmesser (3) bei Überschreitung eines voreingestellten Druckwerts ein Signal an eine Mikroschaltung (17) überträgt, das in zwei umgewandelt wird, wobei ein Signal auf das Relais (18) wirkt, das bei Empfang des elektrischen Signals den Motor (19) der Hydraulikpumpe (1) abschaltet, und das andere Signal den programmierbaren Zeitschalter (12, 20) einschaltet, der nach dem Abschalten des Motors (19) der Pumpe (1) und nach Ablauf der programmierten Zeit ein Signal an den Mikroschaltung (17) für elektrische Signale überträgt, wobei der programmierbare Zeitintervall zwischen einer Minute und zwölf Stunden liegt.
  2. Gerät nach dem Patentanspruch 1, dadurch gekennzeichnet, dass der Zeitschalter (12, 20) nach einer programmierten Anzahl von Neustarts, wobei jeweils eine Laufzeit des Motors (19) der Pumpe (1) unter einer Minute erhalten wird, in eine andauernde Phase zur Nichteinschaltung der Pumpe (1) eintritt.
  3. Gerät nach dem Patentanspruch 1, dadurch gekennzeichnet, dass der Zeitschalter (12, 20) beim Einleiten des Neustarts der Pumpe (1) über eine Dauer von höchstens zehn Sekunden die mögliche Übertragung eines Abschaltsignals des Motors aufgrund nicht anstehenden Drucks am Druckmesser (3) von der Mikroschaltung (17) zum Relais (18) unterbricht.
  4. Gerät nach dem Patentanspruch 1, dadurch gekennzeichnet, dass ein Wählschalter (24) vorhanden ist, der den Betrieb des Geräts abschaltet, wenn er ununterbrochen über einen Zeitraum von mindestens drei Sekunden betätigt wird.
  5. Gerät nach dem Patentanspruch 1, dadurch gekennzeichnet, dass ein Untersystem (25) zur Überwachung des Neustarts des Geräts vorgesehen ist, das die Mikroschaltung (17) für elektrische Signale benutzt, die wiederum Signale von allen Bauteilen des Geräts erhält, und das jene Bauteile, die aus irgendeinem Grund ausgeschaltet wurden, automatisch wieder einschaltet, nachdem die Ursache aufgehoben ist, außer es handelt sich um eine manuelle Abschaltung oder um einen Druckverlust.
EP98500060A 1997-03-05 1998-03-03 Betriebsüberwachungssystem einer Pumpe Expired - Lifetime EP0863278B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ES009700479A ES2138524A1 (es) 1997-03-05 1997-03-05 Sistema para controlar el funcionamiento de bombas.
ES9700479 1997-03-05
ES9800220A ES2151375B1 (es) 1998-02-05 1998-02-05 "sistema para controlar el funcionamiento de bombas"
ES9800220 1998-02-05

Publications (3)

Publication Number Publication Date
EP0863278A2 EP0863278A2 (de) 1998-09-09
EP0863278A3 EP0863278A3 (de) 1999-02-03
EP0863278B1 true EP0863278B1 (de) 2004-03-03

Family

ID=26155041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98500060A Expired - Lifetime EP0863278B1 (de) 1997-03-05 1998-03-03 Betriebsüberwachungssystem einer Pumpe

Country Status (4)

Country Link
EP (1) EP0863278B1 (de)
AT (1) ATE261041T1 (de)
DE (1) DE69822012D1 (de)
ES (1) ES2216259T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007147202A1 (en) * 2006-06-21 2007-12-27 Gary Hall A safety system and method for swimming pools

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6227808B1 (en) * 1999-07-15 2001-05-08 Hydroair A Unit Of Itt Industries Spa pressure sensing system capable of entrapment detection
US7300576B1 (en) * 2005-08-02 2007-11-27 Shasta Industries, Inc. Pool cleaning system and safety skimmer
US7931447B2 (en) 2006-06-29 2011-04-26 Hayward Industries, Inc. Drain safety and pump control device
US8286831B2 (en) 2009-09-18 2012-10-16 Ecolab Usa Inc. Dispenser having vacuum switch controlled pump with bleed valve
WO2011106530A1 (en) 2010-02-25 2011-09-01 Hayward Industries, Inc. Universal mount for a variable speed pump drive user interface
AU2014228186B2 (en) 2013-03-15 2019-11-07 Hayward Industries, Inc. Modular pool/spa control system
US11720085B2 (en) 2016-01-22 2023-08-08 Hayward Industries, Inc. Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment
US20170212536A1 (en) 2016-01-22 2017-07-27 Hayward Industries, Inc. Systems and Methods for Providing Network Connectivity and Remote Monitoring, Optimization, and Control of Pool/Spa Equipment
US10718337B2 (en) 2016-09-22 2020-07-21 Hayward Industries, Inc. Self-priming dedicated water feature pump
EP3790650B1 (de) 2018-05-07 2024-03-27 Ecolab USA Inc. Spender und lösungsausgabeverfahren
CN110778168B (zh) * 2019-10-31 2021-02-26 常德市西湖区三江园林建设有限公司 一种方便除污与恒温的泳池

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963375A (en) * 1974-03-12 1976-06-15 Curtis George C Time delayed shut-down circuit for recirculation pump
US4505643A (en) * 1983-03-18 1985-03-19 North Coast Systems, Inc. Liquid pump control
CA2101170A1 (en) * 1991-01-22 1992-07-23 Geoffrey R. Percival Safety device
KR950005848B1 (ko) * 1992-01-14 1995-05-31 삼성전자주식회사 보일러 순환펌프의 안전장치
EP0698839A1 (de) * 1994-08-23 1996-02-28 Francisco Ballester Munoz System zum Steuern des Zustandes von Filtern und des Flusses von gefiltertem Wasser in einem Reiniger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007147202A1 (en) * 2006-06-21 2007-12-27 Gary Hall A safety system and method for swimming pools

Also Published As

Publication number Publication date
EP0863278A3 (de) 1999-02-03
DE69822012D1 (de) 2004-04-08
ATE261041T1 (de) 2004-03-15
ES2216259T3 (es) 2004-10-16
EP0863278A2 (de) 1998-09-09

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