EP0306814A1 - Swimming pool water treatment process - Google Patents

Swimming pool water treatment process Download PDF

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Publication number
EP0306814A1
EP0306814A1 EP88114181A EP88114181A EP0306814A1 EP 0306814 A1 EP0306814 A1 EP 0306814A1 EP 88114181 A EP88114181 A EP 88114181A EP 88114181 A EP88114181 A EP 88114181A EP 0306814 A1 EP0306814 A1 EP 0306814A1
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Prior art keywords
water
pump
turbidity
degree
basin
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EP88114181A
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German (de)
French (fr)
Inventor
Fritz Dipl.-Ing. Bergmann
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Individual
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Individual
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    • 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

Definitions

  • the invention relates to a method for treating the water of a swimming pool, with which water emerging from the pool is pumped back into the pool by means of at least one pump driven by a variable-speed electric motor via at least one filter device, and with which the speed the electric motor driving the pump is adjusted by a measuring device that detects the degree of turbidity of the water (DE-OS 26 45 183).
  • All public and private swimming pools are operated with such a method today.
  • the circulation of the water with simultaneous guidance over the filter device serves for disinfection, hygiene, safety and aesthetics.
  • the water of a swimming pool is polluted by bathers and especially from the surrounding area in the case of outdoor pools.
  • the degree of pollution of the water depends essentially on the number of bathers and the environmental influences. Contamination of the water is caused, among other things, by microorganisms or coloidally dissolved substances. Dirt and other contaminants, especially contaminants that are hazardous to health, must be removed from the water.
  • suitable materials such as flocculants, are fed to the filter device during operation using metering devices known per se. Chlorine and / or ozone are also used in a known manner to purify the water.
  • a bathing system with constant circulation of the bathing water is known.
  • the water left in the pool of the bathing system is circulated through a filter system by means of a circulation pump.
  • the water is passed through an outlet chamber belonging to a storage tank, the water level of which is kept constant.
  • the pressure of the water flowing to the circulating pump thus always remains the same and the filter system is subjected to constant pressure. Different demands on the bathing facility are not taken into account.
  • an electric motor with two stator windings is used to drive the pump, so that it can be operated at two speeds.
  • the switchover can, in addition to other possibilities, also be effected by a measuring device which detects the degree of turbidity of the water.
  • the measuring device can be arranged in the filter pipe system or in the basin itself. With this procedure, there is no continuous adjustment of the Pump capacity to the actual circumstances possible, but only two different pump capacities can be set. The lower pump output should lead to reduced noise.
  • the invention has for its object to provide a method with which the performance of the pump of a swimming pool can be continuously adapted to the respective conditions in a simple manner while maintaining a predetermined degree of purity of the water without the risk of overdosing or underdosing of chemicals.
  • this object is achieved by that additional water is withdrawn from the basin at at least one predetermined point below the water level and fed to the measuring device measuring the degree of turbidity of the water, which as an output variable supplies an electrical current proportional to the degree of turbidity, - That an adjustable in speed electric motor is used for driving the pump and - That the respective output variable of the measuring device is fed to a controller, through which the speed of the electric motor and thus the performance of the pump is regulated.
  • the degree of contamination of the water during bathing is recorded directly.
  • the water is removed from the pool at a predetermined point below the water level, where experience has shown that the turbidity of the water is greatest without the influence of coarser soiling.
  • the corresponding turbidity of the water is converted by the measuring device directly into a proportional output variable, according to which the performance of the pump is regulated. H. is continuously adapted to the circumstances.
  • the performance of the pump is thus automatically adjusted to the turbidity of the water caused by impurities such that the amount of water circulated is increased, for example in the event of greater turbidity, so that the water is cleaned more quickly.
  • the method therefore works with fully automatic control of the pump output without the number of bathers in the water having to be known.
  • this method can significantly reduce the overall energy consumption for the treatment of the water.
  • the cost of operating a swimming pool can be significantly reduced with this method.
  • a pool 1 of a swimming pool is so far filled with water that there is a constant overflow on the side edges.
  • the overflowing water reaches a splash water basin 2 via corresponding pipelines. From there it is pumped back into basin 1 by means of a pump 3 via a filter device 4.
  • the pump 3 is driven in known technology by an electric motor that is adjustable in speed.
  • a measuring device 5 is connected to the basin 1, to which water is supplied from the basin 1 via a pipeline 6 and is passed from the measuring device 5 to the splash water basin 2.
  • the measuring device 5 measures the turbidity of the water supplied to it in TE / F (turbidity units according to Formazin) and supplies an electrical current at its output A which is proportional to the measured degree of turbidity of the water.
  • the degree of turbidity must not exceed 0.5 TE / F.
  • a current of 0 to 20 mA is available, for example, at the output A of the measuring device 5, the 20 mA being able to correspond to the 0.5 TE / F.
  • Such measuring devices are available on the market. For example, they work with light using the backscattering method.
  • the water can be fed to the measuring device 5 discontinuously or, in a preferred embodiment, continuously.
  • the output variable of the measuring device 5 is fed to a controller 7, which can be a frequency converter, for example.
  • the pump 3 or its electric motor is connected to the controller 7, the speed of which is regulated depending on the degree of turbidity of the water or the output size of the measuring device 5. The performance of the pump 3 is thus automatically adjusted to the degree of turbidity or the contamination of the water contained in the pool 1.
  • Coarse contamination of the water in the basin 1 on its surface can be disregarded. In any case, they disappear over the overflow of the basin 1 after some time, since the pump output during bath operation is set to a minimum output of, for example, 30 m3 / hour is, which ensures a constant overflow.
  • the water for the measuring device 5 is therefore removed from the basin 1 at a certain water depth, in which experience has shown that the turbidity is the greatest - due to the movements of the water and the bathers. This is the case, for example, at a distance of 0.75 m from the water surface.
  • a pump 8 can also be controlled by the controller 7, with which chemicals or filter materials are metered into the filter device 4. The dosing then also takes place as a function of the degree of turbidity of the water in basin 1 and of the current delivery capacity of the pump 3.
  • a device for the filtration of liquids with the addition of filter aids, which are dosed in accordance with opacimeters, is in principle from DE-PS 974 466 known.
  • the water can in principle also be pumped out of the basin 1 with a pump 9, as can be seen from FIG. 2. This is particularly the case with older systems that do not have an overflow at the edges.
  • the pump 9 conveys the water back into the basin 1 after passing through the filter device 4.
  • the water can also be circulated both by overflow at the edges of the basin 1 with splash water basin 2 and by the pump 9.
  • a total of more than one of the pumps 3 and 9 can also be used.
  • a second filter device 10 is shown in FIG. All pumps 3 and 9 used are regulated by the controller 7 so that their performance is adapted to the respective requirements in accordance with the degree of turbidity of the water.
  • the filter devices 4 and 10 or all filter devices can also be equipped with pumps 8, by means of which the chemicals are metered in depending on the degree of turbidity of the water.
  • filter substances are added to the filter devices 4 and 10 via the pipelines.
  • a direct addition is shown in the drawings.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Water Supply & Treatment (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

A swimming pool water treatment process is provided, with which the pumping capacity of the treatment plant is automatically adapted to the conditions actually prevailing. For this purpose, the degree of turbidity of the water is constantly measured by a measuring apparatus. A controller connected to the measuring apparatus controls the speed of the electric motor driving the pump and thus the pumping capacity as a function of the degree of turbidity.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Aufbereitung des Wassers eines Schwimmbades, mit welchem aus dem Becken desselben austretendes Wasser mittels mindestens einer durch einen in der Drehzahl verstellbaren Elektromotor angetriebenen Pumpe über mindestens eine Filtervorrichtung zurück in das Becken gepumpt wird, und mit welchem die Drehzahl des die Pumpe antreibenden Elektromotors durch ein den Trübungsgrad des Wassers erfassendes Meßgerät verstellt wird (DE-OS 26 45 183).The invention relates to a method for treating the water of a swimming pool, with which water emerging from the pool is pumped back into the pool by means of at least one pump driven by a variable-speed electric motor via at least one filter device, and with which the speed the electric motor driving the pump is adjusted by a measuring device that detects the degree of turbidity of the water (DE-OS 26 45 183).

Mit einem derartigen Verfahren werden heute alle öffentlichen und auch privaten Schwimmbäder betrieben. Das Umwälzen des Wassers mit gleichzeitiger Führung über die Filtervorrichtung dient der Desinfektion, der Hygiene, der Sicherheit und der Ästhetik. Das Wasser eines Schwimmbades wird durch Badegäste und insbesondere bei Freibädern auch aus der Umgebung verschmutzt. Der Verschmutzungsgrad des Wassers hängt somit wesentlich von der Anzahl der Badegäste und den Umgebungseinflüssen ab. Verunreinigungen des Wassers werden u. a. durch Mikroorganismen oder coloidal gelöste Stoffe verursacht. Schmutz und andere Verunreinigungen, insbesondere gesundheitsgefährdende Verunreinigungen, müssen aus dem Wasser entfernt werden. Der Filtervorrichtung werden dazu während des Betriebes mit an sich bekannten Dosiervorrichtungen geeignete Materialien, wie beispielsweise Flockungsmittel, zugeführt. Zur Reinigung des Wassers werden in bekannter Weise auch Chlor und/oder Ozon eingesetzt.All public and private swimming pools are operated with such a method today. The circulation of the water with simultaneous guidance over the filter device serves for disinfection, hygiene, safety and aesthetics. The water of a swimming pool is polluted by bathers and especially from the surrounding area in the case of outdoor pools. The degree of pollution of the water depends essentially on the number of bathers and the environmental influences. Contamination of the water is caused, among other things, by microorganisms or coloidally dissolved substances. Dirt and other contaminants, especially contaminants that are hazardous to health, must be removed from the water. For this purpose, suitable materials, such as flocculants, are fed to the filter device during operation using metering devices known per se. Chlorine and / or ozone are also used in a known manner to purify the water.

Nach DIN 19643 reicht es zur Erhaltung eines vorgegebenen Reinheitsgrads des Wassers von Schwimmbädern aus, wenn pro Badegast 2 m³/Stunde umgewälzt werden. Da die Anzahl der Badegäste insbesondere bei öffentlichen Bädern nicht vorhergesagt werden kann und weil nur mit erheblichem Aufwand festgestellt werden kann, wieviel Badegäste sich jeweils im Wasser aufhalten, wird mit einem Durchschnittswert gerechnet, auf den die Leistung der das Wasser umwälzenden Pumpe ausgelegt wird. Während der Saison arbeitet die Pumpe durchgehend mit voller Leistung, auch wenn weniger oder sogar wesentlich weniger Badegäste im Wasser sind als angenommen. Der Energieverbrauch liegt also meistens höher als erforderlich. Die Kosten für den Betrieb des Schwimmbades sind entsprechend hoch.According to DIN 19643, it is sufficient to maintain a specified level of purity of the water in swimming pools if 2 m³ / hour are circulated per bathing guest. Since the number of bathers, particularly in public baths, cannot be predicted and because it can only be determined with considerable effort how many bathers are present in the water, an average value is calculated on which the performance of the pump circulating the water is designed. During the season, the pump works continuously at full capacity, even if there are fewer or even fewer bathers in the water than expected. The energy consumption is usually higher than necessary. The cost of operating the swimming pool is correspondingly high.

Aus der DE-AS 14 34 837 ist eine Badeanlage mit ständiger Umwälzung des Badewassers bekannt. Das aus dem Becken der Badeanlage überließende Wasser wird mittels einer Umwälzpumpe im Kreislauf über eine Filteranlage geleitet. Um eine unterschiedliche Beaufschlagung der Filteranlage während des Betriebes der Badeanlage zu vermeiden, wird das Wasser über eine zu einem Speicherbehälter gehörende Ablaufkammer geleitet, deren Wasserspiegel konstant gehalten wird. Der Druck des zur Umwälzpumpe fließenden Wassers bleibt damit immer gleich und die Filteranlage wird gleichbleibend beaufschlagt. Unterschiedliche Beanspruchungen der Badeanlage werden nicht berücksichtigt.From DE-AS 14 34 837 a bathing system with constant circulation of the bathing water is known. The water left in the pool of the bathing system is circulated through a filter system by means of a circulation pump. In order to avoid a different loading of the filter system during the operation of the bathing system, the water is passed through an outlet chamber belonging to a storage tank, the water level of which is kept constant. The pressure of the water flowing to the circulating pump thus always remains the same and the filter system is subjected to constant pressure. Different demands on the bathing facility are not taken into account.

Bei dem bekannten Verfahren nach der eingangs erwähnten DE-OS 26 45 183 wird für den Antrieb der Pumpe ein Elektromotor mit zwei Statorwicklungen verwendet, so daß er mit zwei Geschwindigkeiten betrieben werden kann. Das entspricht zwei unterschiedlichen Leistungen der Pumpe. Die Umschaltung kann neben anderen Möglichkeiten auch durch ein den Trübungsgrad des Wassers erfassendes Meßgerät bewirkt werden. Das Meßgerät kann im Filterrohrsystem oder im Becken selbst angeordnet werden. Mit diesem Verfahren ist keine kontinuierliche Anpassung der Pumpenleistung an die tatsächlichen Gegebenheiten möglich, sondern es können nur zwei unterschiedliche Pumpenleistungen eingestellt werden. Die niedrigere Pumpenleistung soll zu einer verminderten Geräuschentwicklung führen. Auch die Umschaltung der Pumpenleistung nach Maßgabe des Trübungsgrades des Wassers führt zu keinem brauchbaren Ergebnis, da das den Trübungsgrad erfassende Meßgerät auch gröbere Verschmutzungen mit erfaßt, wenn es im Filterrohrsystem angeordnet ist. Die Folge ist eine nicht erwünschte Überdosierung von Chemikalien. Bei Anordnung des Meßgeräts im Becken ist eine Beschädigungsgefahr für das Meßgerät nicht ausgeschlossen, wenn es nicht beispielsweise in einer Nische angebracht ist. Ein Hinweis für den Ort seiner Anbringung ist der Druckschrift allerdings nicht zu entnehmen. Außerdem ist auch dann die Gefahr einer Überdosierung bzw. einer Unterdosierung nicht auszuschließen.In the known method according to DE-OS 26 45 183 mentioned at the outset, an electric motor with two stator windings is used to drive the pump, so that it can be operated at two speeds. This corresponds to two different pump outputs. The switchover can, in addition to other possibilities, also be effected by a measuring device which detects the degree of turbidity of the water. The measuring device can be arranged in the filter pipe system or in the basin itself. With this procedure, there is no continuous adjustment of the Pump capacity to the actual circumstances possible, but only two different pump capacities can be set. The lower pump output should lead to reduced noise. Switching the pump output in accordance with the degree of turbidity of the water also does not lead to a usable result, since the measuring device which measures the degree of turbidity also detects coarse soiling when it is arranged in the filter tube system. The result is an undesirable overdose of chemicals. If the measuring device is arranged in the basin, a risk of damage to the measuring device cannot be ruled out if it is not installed in a niche, for example. However, there is no indication of the location of its attachment in the publication. In addition, the risk of overdosing or underdosing cannot be excluded.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren anzugeben, mit dem die Leistung der Pumpe eines Schwimmbades bei Einhaltung eines vorgegebenen Reinheitsgrades des Wassers auf einfache Weise den jeweiligen Bedingungen kontinuierlich angepaßt werden kann, ohne daß die Gefahr einer Überdosierung bzw. Unterdosierung von Chemikalien besteht.The invention has for its object to provide a method with which the performance of the pump of a swimming pool can be continuously adapted to the respective conditions in a simple manner while maintaining a predetermined degree of purity of the water without the risk of overdosing or underdosing of chemicals.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst,
- daß an mindestens einer, eine vorgegebene Strecke unterhalb des Wasserspiegels liegenden Stelle des Beckens zusätzlich Wasser aus demselben entnommen und dem den Trübungsgrad des Wassers messenden Meßgerät, das als Ausgangsgröße einen dem Trübungsgrad proportionalen elektrischen Strom liefert, zugeführt wird,
- daß für den Antrieb der Pumpe ein in der Drehzahl regelbarer Elektromotor verwendet wird und
- daß die jeweilige Ausgangsgröße des Meßgeräts einem Regler zugeführt wird, durch welchen die Drehzahl des Elektromotors und damit die Leistung der Pumpe geregelt wird.According to the invention, this object is achieved by
that additional water is withdrawn from the basin at at least one predetermined point below the water level and fed to the measuring device measuring the degree of turbidity of the water, which as an output variable supplies an electrical current proportional to the degree of turbidity,
- That an adjustable in speed electric motor is used for driving the pump and
- That the respective output variable of the measuring device is fed to a controller, through which the speed of the electric motor and thus the performance of the pump is regulated.

Mit diesem Verfahren wird der Grad der Verunreinigung des Wassers während des Badebetriebes direkt erfaßt. Dazu wird das Wasser an einer vorgegebenen Stelle unterhalb des Wasserspiegels aus dem Becken entnommen, an welcher die Trübung des Wassers ohne Einfluß von gröberen Verschmutzungen erfahrungsgemäß am größten ist. Die entsprechende Trübung des Wassers wird von dem Meßgerät direkt in eine proportionale Ausgangsgröße umgesetzt, nach deren Maßgabe die Leistung der Pumpe geregelt, d. h. den Gegebenheiten kontinuierlich angepaßt wird. Die Leistung der Pumpe wird damit automatisch auf die durch Verunreinigungen hervorgerufene Trübung des Wassers so eingestellt, daß die umgewälzte Wassermenge beispielsweise bei stärkerer Trübung erhöht wird, so daß das Wasser schneller gereinigt wird. Das Verfahren arbeitet also mit vollautomatischer Regelung der Pumpenleistung, ohne daß die Anzahl der im Wasser befindlichen Badegäste bekannt sein muß. Da die Pumpenleistung unter Berücksichtigung einer während des Badebetriebes notwendigen Mindestleistung bei geringer Trübung des Wassers (wenig Badegäste) klein gehalten wird, kann mit diesem Verfahren der Energieverbrauch für die Aufbereitung des Wassers insgesamt wesentlich vermindert werden. Die Kosten für den Betrieb eines Schwimmbads können mit diesem Verfahren erheblich gesenkt werden.With this method, the degree of contamination of the water during bathing is recorded directly. For this purpose, the water is removed from the pool at a predetermined point below the water level, where experience has shown that the turbidity of the water is greatest without the influence of coarser soiling. The corresponding turbidity of the water is converted by the measuring device directly into a proportional output variable, according to which the performance of the pump is regulated. H. is continuously adapted to the circumstances. The performance of the pump is thus automatically adjusted to the turbidity of the water caused by impurities such that the amount of water circulated is increased, for example in the event of greater turbidity, so that the water is cleaned more quickly. The method therefore works with fully automatic control of the pump output without the number of bathers in the water having to be known. Since the pump output is kept low, taking into account a minimum output required during bath operation with low turbidity of the water (few bathers), this method can significantly reduce the overall energy consumption for the treatment of the water. The cost of operating a swimming pool can be significantly reduced with this method.

Vorteilhafte Ausgestaltungen der Erfindung gehen aus den Unteransprüchen hervor.Advantageous embodiments of the invention emerge from the subclaims.

Das Verfahren nach der Erfindung wird an Hand der Zeichnungen in Ausführungsbeispielen erläutert.The method according to the invention is explained with reference to the drawings in exemplary embodiments.

Es zeigen:

  • Fig. 1 schematisch eine Anordnung zur Durchführung des Verfahrens nach der Erfindung.
  • Fig. 2 eine gegenüber Fig. 1 erweiterte Anordnung in verkleinerter Darstellung.
Show it:
  • Fig. 1 shows schematically an arrangement for performing the method according to the invention.
  • Fig. 2 shows an enlarged arrangement compared to Fig. 1 in a reduced representation.

Ein Becken 1 eines Schwimmbades ist so weit mit Wasser gefüllt, daß sich ein ständiger Überlauf an den seitlichen Rändern ergibt. Das überlaufende Wasser gelangt über entsprechende Rohrleitungen in ein Schwallwasserbecken 2. Es wird von dort mittels einer Pumpe 3 über eine Filtervorrichtung 4 zurück in das Becken 1 gepumpt. Die Pumpe 3 wird in bekannter Technik von einem in der Drehzahl regelbaren Elektromotor angetrieben. An das Becken 1 ist außerdem ein Meßgerät 5 angeschlossen, dem über eine Rohrleitung 6 Wasser aus dem Becken 1 zugeführt wird, das vom Meßgerät 5 aus zum Schwallwasserbecken 2 geleitet wird. Das Meßgerät 5 mißt die Trübung des ihm zugeführten Wassers in TE/F (Trübungseinheiten nach Formazin) und liefert an seinem Ausgang A als Ausgangsgröße einen elektrischen Strom, der dem gemessenen Trübungsgrad des Wassers proportional ist. Der Trübungsgrad darf beispielsweise 0,5 TE/F nicht überschreiten. Am Ausgang A des Meßgeräts 5 steht beispielsweise ein Strom von 0 bis 20 mA zur Verfügung, wobei die 20 mA den 0,5 TE/F entsprechen können. Derartige Meßgeräte sind auf dem Markt erhältlich. Sie arbeiten beispielsweise mit Licht nach der Rückstreumethode. Das Wasser kann dem Meßgerät 5 diskontinuierlich oder in bevorzugter Ausführungsform kontinuierlich zugeführt werden.A pool 1 of a swimming pool is so far filled with water that there is a constant overflow on the side edges. The overflowing water reaches a splash water basin 2 via corresponding pipelines. From there it is pumped back into basin 1 by means of a pump 3 via a filter device 4. The pump 3 is driven in known technology by an electric motor that is adjustable in speed. In addition, a measuring device 5 is connected to the basin 1, to which water is supplied from the basin 1 via a pipeline 6 and is passed from the measuring device 5 to the splash water basin 2. The measuring device 5 measures the turbidity of the water supplied to it in TE / F (turbidity units according to Formazin) and supplies an electrical current at its output A which is proportional to the measured degree of turbidity of the water. For example, the degree of turbidity must not exceed 0.5 TE / F. A current of 0 to 20 mA is available, for example, at the output A of the measuring device 5, the 20 mA being able to correspond to the 0.5 TE / F. Such measuring devices are available on the market. For example, they work with light using the backscattering method. The water can be fed to the measuring device 5 discontinuously or, in a preferred embodiment, continuously.

Die Ausgangsgröße des Meßgeräts 5 wird einem Regler 7 zugeführt, bei dem es sich beispielsweise um einen Frequenzumrichter handeln kann. An den Regler 7 ist die Pumpe 3 bzw. deren Elektromotor angeschlossen, dessen Drehzahl je nach Trübungsgrad des Wassers bzw. Ausgangsgröße des Meßgeräts 5 geregelt wird. Die Leistung der Pumpe 3 wird damit automatisch dem Trübungsgrad bzw. der Verunreinigung des im Becken 1 enthaltenen Wassers angepaßt.The output variable of the measuring device 5 is fed to a controller 7, which can be a frequency converter, for example. The pump 3 or its electric motor is connected to the controller 7, the speed of which is regulated depending on the degree of turbidity of the water or the output size of the measuring device 5. The performance of the pump 3 is thus automatically adjusted to the degree of turbidity or the contamination of the water contained in the pool 1.

Gröbere Verschmutzungen des Wassers im Becken 1 an seiner Oberfläche können unberücksichtigt bleiben. Sie verschwinden über den Überlauf des Beckens 1 ohnehin nach einiger Zeit, da die Pumpenleistung während des Badebetriebes auf eine Mindestleistung von beispielsweise 30 m³/Stunde eingestellt wird, wodurch für einen ständigen Überlauf gesorgt ist. Das Wasser für das Meßgerät 5 wird daher in einer bestimmten Wassertiefe aus dem Becken 1 entnommen, in der erfahrungsgemäß - bedingt durch die Bewegungen des Wassers und der Badegäste - die Trübung am stärksten ist. Das ist beispielsweise in einem Abstand von 0,75 m von der Wasseroberfläche der Fall.Coarse contamination of the water in the basin 1 on its surface can be disregarded. In any case, they disappear over the overflow of the basin 1 after some time, since the pump output during bath operation is set to a minimum output of, for example, 30 m³ / hour is, which ensures a constant overflow. The water for the measuring device 5 is therefore removed from the basin 1 at a certain water depth, in which experience has shown that the turbidity is the greatest - due to the movements of the water and the bathers. This is the case, for example, at a distance of 0.75 m from the water surface.

Vom Regler 7 kann auch eine Pumpe 8 gesteuert werden, mit der der Filtervorrichtung 4 Chemikalien bzw. Filterstoffe zudosiert werden. Die Dosierung erfolgt dann ebenfalls in Abhängigkeit vom Trübungsgrad des Wassers im Becken 1 und von der momentanen Förderleistung der Pumpe 3. Eine Einrichtung zur Filtration von Flüssigkeiten unter Zusatz von Filterhilfsmitteln, die nach Maßgabe von Trübungsmessern dosiert werden, ist prinzipiell aus der DE-PS 974 466 bekannt.A pump 8 can also be controlled by the controller 7, with which chemicals or filter materials are metered into the filter device 4. The dosing then also takes place as a function of the degree of turbidity of the water in basin 1 and of the current delivery capacity of the pump 3. A device for the filtration of liquids with the addition of filter aids, which are dosed in accordance with opacimeters, is in principle from DE-PS 974 466 known.

Für den Umwälzvorgang kann das Wasser grundsätzlich auch mit einer Pumpe 9 aus dem Becken 1 herausgepumpt werden, so wie es aus Fig. 2 hervorgeht. Das wird insbesondere bei älteren Anlagen so gemacht, die keinen Überlauf an den Rändern haben. Die Pumpe 9 fördert das Wasser nach Passieren der Filtervorrichtung 4 zurück in das Becken 1.For the circulation process, the water can in principle also be pumped out of the basin 1 with a pump 9, as can be seen from FIG. 2. This is particularly the case with older systems that do not have an overflow at the edges. The pump 9 conveys the water back into the basin 1 after passing through the filter device 4.

Das Wasser kann prinzipiell auch sowohl durch Überlauf an den Rändern des Beckens 1 mit Schwallwasserbecken 2 als auch mit der Pumpe 9 umgewälzt werden. Es können insgesamt auch mehr als jeweils eine der Pumpen 3 und 9 eingesetzt werden. In Fig. 2 ist eine zweite Filtervorrichtung 10 dargestellt. Alle eingesetzten Pumpen 3 und 9 werden vom Regler 7 geregelt, so daß ihre Leistungen nach Maßgabe des Trübungsgrads des Wassers den jeweiligen Erfordernissen angepaßt sind. Auch die Filtervorrichtungen 4 und 10 bzw. alle Filtervorrichtungen können mit Pumpen 8 ausgerüstet sein, durch welche die Chemikalien in Abhängigkeit vom Trübungsgrad des Wassers zudosiert werden.In principle, the water can also be circulated both by overflow at the edges of the basin 1 with splash water basin 2 and by the pump 9. A total of more than one of the pumps 3 and 9 can also be used. A second filter device 10 is shown in FIG. All pumps 3 and 9 used are regulated by the controller 7 so that their performance is adapted to the respective requirements in accordance with the degree of turbidity of the water. The filter devices 4 and 10 or all filter devices can also be equipped with pumps 8, by means of which the chemicals are metered in depending on the degree of turbidity of the water.

Die Zugabe von Filterstoffen zu den Filtervorrichtungen 4 und 10 erfolgt in der Praxis über die Rohrleitungen. In den Zeichnungen ist der Einfachheit halber eine direkte Zugabe eingezeichnet.In practice, filter substances are added to the filter devices 4 and 10 via the pipelines. For the sake of simplicity, a direct addition is shown in the drawings.

Bei größerer Anzahl von Badegästen und entsprechend erhöhter Wasserverdrängung gelangt mehr Wasser in das Schwallwasserbecken 2. Damit das Schwallwasserbecken 2 nicht überlaufen kann, muß eine Pegelüberwachung an demselben vorhanden sein, durch welche gegebenenfalls die Leistung der Pumpe 3 unabhängig vom Meßgerät 5 kurzzeitig erhöht wird.With a larger number of bathers and a correspondingly increased displacement of water, more water gets into the splash water pool 2. So that the splash water pool 2 cannot overflow, a level monitor must be present there, by which the output of the pump 3 may be briefly increased independently of the measuring device 5.

Claims (4)

1. Verfahren zur Aufbereitung des Wassers eines Schwimmbades, mit welchem aus dem Becken desselben austretendes Wasser mittels mindestens einer durch einen in der Drehzahl verstellbaren Elektromotor angetriebenen Pumpe über mindestens eine Filtervorrichtung zurück in das Becken gepumpt wird, und mit welchem die Drehzahl des die Pumpe antreibenden Elektromotors durch ein den Trübungsgrad des Wassers erfassendes Meßgerät verstellt wird, dadurch gekennzeichnet,
- daß an mindestens einer, eine vorgegebene Strecke unterhalb des Wasserspiegels liegenden Stelle des Beckens (1) zusätzlich Wasser aus demselben entnommen und dem den Trübungsgrad des Wassers messenden Meßgerät (5), das als Ausgangsgröße einen dem Trübungsgrad proportionalen elektrischen Strom liefert, zugeführt wird,
- daß für den Antrieb der Pumpe (3,9) ein in der Drehzahl regelbarer Elektromotor verwendet wird und
- daß die jeweilige Ausgangsgröße des Meßgeräts (5) einem Regler (7) zugeführt wird, durch welchen die Drehzahl des Elektromotors und damit die Leistung der Pumpe (3,9) geregelt wird.1. A method for treating the water of a swimming pool, with which water emerging from the pool is pumped back into the pool by means of at least one pump driven by a variable-speed electric motor via at least one filter device, and with which the speed of the pump driving the pump Electric motor is adjusted by a measuring device which detects the degree of turbidity of the water, characterized in that
- that at least one, a predetermined distance below the water level of the basin (1) additional water is taken from the same and is fed to the measuring device for measuring the degree of turbidity of the water (5), which delivers an electrical current proportional to the degree of turbidity as an output variable,
- That a speed adjustable electric motor is used for driving the pump (3,9) and
- That the respective output variable of the measuring device (5) is fed to a controller (7) through which the speed of the electric motor and thus the power of the pump (3,9) is regulated. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Ausgangsgröße der Reglers (7) zusätzlich zur Regelung der der Filtervorrichtung (4) zuzuführenden Menge an Filterstoffen verwendet wird.2. The method according to claim 1, characterized in that the output variable of the controller (7) is additionally used to regulate the amount of filter materials to be supplied to the filter device (4). 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als Regler (7) ein Frequenzumrichter verwendet wird.3. The method according to claim 1 or 2, characterized in that a frequency converter is used as a controller (7). 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß bei Einsatz eines Schwallwasserbeckens (2) zwischen Becken (1) und Pumpe (3), der Pegel des Wassers im Schwallwasserbecken (2) überwacht und zur zusätzlichen Beeinflussung der Leistung der Pumpe (3) verwendet wird.4. The method according to any one of claims 1 to 3, characterized in that when using a splash water basin (2) between the basin (1) and pump (3), the level of the water in the splash water basin (2) is monitored and for additionally influencing the performance of the Pump (3) is used.
EP88114181A 1987-09-09 1988-08-31 Swimming pool water treatment process Withdrawn EP0306814A1 (en)

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DE19873730220 DE3730220C1 (en) 1987-09-09 1987-09-09 Process for the treatment of water in a swimming pool
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