Floating or submersible measuring and metering device for a pool

Abstract

The invention relates to a portable measuring and metering device (1) for measuring and treating water in a pool basin. The aim of the invention is to provide means which can be used to provide a high degree of water quality in a pool basin, even in the case of a highly variable usage, without a high degree of complexity with respect to an external piping system and external treatment systems. This is achieved by a portable measuring and metering device (1) for measuring and treating water in a pool basin, comprising - means for determining the water quality in the pool basin (10, 11), - at least one storage and metering means for at least one water treatment substance (13, 14, 15, 16), - at least one control unit for controlling the at least one metering means (15, 16), preferably on the basis of the water quality in the pool basin, and - means for supplying power to the measuring and metering device.

Description

[0001] Floating or submersible measuring and dosing device for a pool

[0002] The invention relates to a measuring and dosing device for measuring and chemically treating water in a pool.

[0003] Pools can have a wide variety of shapes and functions. Typical examples include whirlpools, swim spas, paddling pools, quick-up pools, frame pools, and jet wall pools. The use of smaller pools, such as whirlpools or small pools with counter-current systems, known as swim spas, is becoming increasingly popular. They promote health and require little installation effort.

[0004] When whirlpools and swim spas are used, the water becomes contaminated with viruses, bacteria, and human dirt. Even in unused pools, the water quality changes due to dust, particles, leaves, etc. Chemical reactions increase the pH of the water, and disinfection, which often occurs via free chlorine in the water, becomes ineffective. Larger pools, for example, from approximately 10 m 3 Pools are therefore usually connected via piping to an external treatment system, such as one located in a pool house, to filter the water, adjust the pH, and add the correct amount of disinfectant. For this purpose, the water is drawn from the pool through pipes, filtered, fed to the treatment system, and then returned to the pool.

[0005] These systems are not available for smaller pools, such as whirlpools, swim spas, paddling pools, quick-up pools, frame pools, above-ground pools, inflatable pools, and jet wall pools, as the necessary piping is too costly for smaller pools. The above-mentioned pools, on the other hand, often only have integrated filters and circulation systems, which can mechanically filter residues from the water. For disinfection, the user must manually add water treatment agents, also known as "water care products," to the water, which frequently leads to application errors. Excessive amounts of chlorine are often used. Furthermore, water quality changes even when the pool is not in use or when usage intensity fluctuates greatly, and can therefore pose a health risk. The water quality of pools that do not have a treatment system connected via piping can therefore be maintained manually, albeit at considerable expense.

[0006] The water treatment systems known from swimming pools, which control water quality and treatment by adding agents to control the pH value and disinfectants, among other things, are maintenance-intensive and cannot be used without external drain and inlet, i.e. external piping.

[0007] European patent EP 1454885 Bl discloses a portable dosing device for ozone release into pool water, which can float in the pool but cannot determine the water quality.

[0008] An industrial water treatment process using UV rays is known from the German application DE 199 11 443 A 1.

[0009] Floating measuring probes are also known from the state of the art. These measure all water parameters in a pool while floating and send the data to a treatment plant. However, the problematic dosing of water treatment agents in pools without treatment plants connected via piping is not solved by these measuring probes either.

[0010] Based on this prior art, it is the object of the present invention to provide means with which a high water quality in a pool can be provided over a long period of time with low maintenance, even in the case of highly fluctuating use, without great expenditure for external piping and external treatment systems.

[0011] The above task is achieved by a portable measuring and dosing device for measuring and treating water in a pool with

[0012] - means for determining the water quality in the pool,

[0013] - at least one storage and one dosing means for at least one water treatment substance,

[0014] - at least one control unit for controlling the at least one dosing agent, preferably depending on the water quality in the pool and

[0015] - Means for supplying power to the measuring and dosing device.

[0016] According to the invention, the measuring and dosing device is designed to be portable, i.e., portable or transportable. As a portable measuring and dosing device, it can also be operated without a stationary water supply system for measuring and dosing a water treatment substance.

[0017] The portable measuring and dosing device preferably has an IP protection rating of 1P55 or higher against water ingress. The measuring and dosing device is preferably floatable and / or submersible.

[0018] Studies have shown that it is possible to ensure good water quality in a pool even without an external, stationary treatment system by metering water treatment substances using a portable, e.g., floating and / or submersible, measuring and dosing device. The measuring and dosing device according to the invention uses means for determining the water quality of the water in the pool in order to dose the water treatment substances, at least preferably depending on the measured water quality. Means for determining water quality are understood to include all possible sensors or measuring cells that can measure water parameters important for the operation of pools. These include, among others, means for measuring pH, redox potential, chlorine content, cyanic acid content, or alkalinity.The benefit of good water quality is also achieved when, for example, water treatment substances are continuously or intermittently, but regularly, released from the storage media via the dosing devices, depending on the pool's parameters. In this case, the water quality measurement devices can be used to issue warnings in the event of poor water quality. By using dosing devices that dose water treatment substances from the storage media in a controlled manner, overdosing, for example of disinfectants, can be largely eliminated.

[0019] It has been shown that the portable measuring and dosing device achieves sufficient distribution of the substances mentioned, for example by swimming or diving in the pool while dosing the water treatment substances from the stored media using the dosing media. Thanks to its power supply, the measuring and dosing device can remain autonomous in the pool for long periods and can be removed, for example, when the pool is in use. The measuring and dosing device can be powered by accumulators or batteries, for example. A wired DC power supply with a maximum voltage of 24 V, for example, is also conceivable. If means for inductively charging accumulators are provided, the measuring and dosing device can in principle also be operated continuously, since the accumulators can also be charged in the water.

[0020] The measuring and dosing device preferably has means for attachment to or in the pool. For example, the attachment means can be designed as a hook-shaped holder, so that the portable measuring and dosing device can be suspended on or in the pool. The hooks are preferably adapted to one or more usable pools and can enable easy positioning of the portable measuring and dosing device directly on or in the pool. However, the means for attaching the measuring and dosing device can also be provided by the pool itself, so that the measuring and dosing device can be provided as a fastening means, for example by suitable threaded rods or sleeves for detachable attachment to the pool.

[0021] Furthermore, the portable measuring and dosing device can also be arranged next to the pool; for this purpose, the portable measuring and dosing device has means for stable positioning of the measuring and dosing device outside the pool.

[0022] The means for stable positioning are intended to prevent the measuring and dosing device from tipping over. This can be achieved, for example, by a correspondingly stable mount for the measuring and dosing device or by supporting means attached to the measuring and dosing device. Alternatively, the housing of the measuring and dosing device can also include means for stable positioning, for example, by means of an appropriate geometric shape.

[0023] Using the measuring and dosing device according to the invention not only extends the retention time of the water in the pool while maintaining consistent quality, thus reducing water consumption. At the same time, the combination of dosing agent and means for determining water quality makes it possible to use water treatment substances efficiently and without waste, while reducing health risks. The water quality in the pool is maintained for a long time, yet the pool can be used at any time. As already mentioned, the portable measuring and dosing device can be operated without external piping. The measuring and dosing device according to the invention is therefore particularly advantageous for all pools up to 10 m². 3, because an external water treatment system connected via piping is either not desired or too complex to implement. Furthermore, in cases where pool use fluctuates greatly, such as with a whirlpool, a simple way to specifically adjust the water quality over time is provided.

[0024] Preferably, according to a first embodiment, as means for determining the water quality

[0025] - Means for determining the pH value of the water in the pool, as well as

[0026] - Storage and dosing equipment for at least one disinfectant and

[0027] - Storage and dosing agent for at least one agent for adjusting the pH value of the water in the pool.

[0028] The combination of storage and dosing means for at least one disinfectant and for at least one agent for adjusting the pH of the pool water allows the water quality in the pool to be adjusted very precisely with regard to hygienic conditions using the control unit for controlling the dosing agents. pH-lowering agents are preferably used here to improve the effectiveness of the disinfectants. Disinfection of the pool water at an adjusted pH is particularly easy by dosing an aqueous solution containing hypochlorous acid, sodium hypochlorite, and sodium chloride, without the need for additional measurements. This design is therefore particularly cost-effective.

[0029] If, according to a further embodiment of the measuring and dosing device, means are additionally provided for determining the redox potential of the water in the pool, an aqueous solution comprising mixtures of chlorine-1, chlorine-11 oxides (CK) and sodium chloride can be used for disinfection, which is particularly effective. This type of disinfection is often used in public swimming pools. The redox potential is the ratio between the amount of oxidizing substances and the amount of reducing substances. The redox potential is given in mV and indicates whether the disinfectant, in this case chlorine, has sufficient disinfection effect, oxidation power. For the disinfection of public swimming pools, for example, a redox potential of at least 750 mV is specified. Disinfectants, particularly in the form of free chlorine, are contained as oxidizing substances in the water in the pool.

[0030] Contamination of the pool water, for example, from swimmers, environmental influences such as dust, etc., typically increases the amount of reducing substances, causing the redox potential to drop. As the redox potential decreases, the effectiveness of the disinfectant decreases.

[0031] In principle, with regard to the last-mentioned design of the measuring and dosing device, means for determining the water quality can also be provided in the measuring and dosing device, alternatively or cumulatively, which can, for example, measure the chlorine content, the cyanic acid content or the alkalinity and, depending on this, dose substances for water treatment into the pool water, so that a very good control of the water quality in the pool is achieved.

[0032] According to a further embodiment of the measuring and dosing device, at least one temperature sensor is preferably provided for measuring the temperature of the water in the pool. The temperature sensor is preferably arranged at the bottom of the measuring and dosing device in order to measure the water temperature as low as possible, i.e., without significant influence from the water surface, such as direct sunlight. Alternatively, the temperature sensor is arranged within the measuring cell and is flushed with water before the measurement. The water temperature is important because, among other things, it determines the amount of disinfectant required.

[0033] Are means for sucking water into the measuring and dosing device and

[0034] According to a further embodiment of the measuring and dosing device, the water quality can be measured particularly easily and precisely via measuring cells by ejecting water from the measuring and dosing device, wherein the water is guided past the means for determining the water quality, preferably the means for determining the pH value and / or the means for determining the redox potential and further optionally past openings of provided dosing means before being ejected. Depending on the measured values ​​of the pH value and / or the redox potential, means for adjusting the pH value, preferably pH-reducing agents and / or disinfectants, can preferably be added to the sucked-in water via the dosing means. This achieves particularly good mixing of the water with the agents used for water treatment before they are released into the pool water.In particular, this significantly reduces the risk of locally excessive chlorine concentrations. The means for sucking in and expelling water preferably include electric pumps and appropriate water guides in the measuring and dosing device.

[0035] According to a further embodiment, the means for sucking in and expelling water comprise flexible water pipes or means for connecting them, so that, for example, water from the pool can be supplied to a measuring and dosing device arranged outside the pool via flexible water pipes for measuring and dosing.

[0036] According to a further embodiment, the means for sucking water into the measuring and dosing device have at least one inlet opening, which is arranged in relation to the at least one outlet opening of the means for expelling water from the measuring and dosing device such that no freshly treated water is sucked into the intake opening from the at least one outlet opening. For example, the measuring and dosing device can have a longitudinal extension in one direction, wherein the means for sucking water into the measuring and dosing device and expelling water from the measuring and dosing device have at least one intake opening and at least one outlet opening, and the at least one intake opening is arranged at a distance of at least one-third of the longitudinal extension of the measuring and dosing device from the outlet opening, below the water level, preferably at the bottom of the measuring and dosing device.This ensures that the intake opening does not suck in water that has just been treated, thus avoiding incorrect measurements.

[0037] Preferably, the dosing means for the disinfectant and / or the dosing means for the agent for adjusting the pH of the pool water are designed to eject water enriched with the agent to be dosed from the measuring and dosing device. This allows a sufficiently low concentration, particularly of the disinfectant, to be dispensed from the measuring and dosing device, as an alternative to dosing into the water flowing past the measuring cells, thus reducing health risks. Alternatively, the dosing into the water flowing past the measuring cells can also be carried out already diluted with water from the pool.

[0038] According to a further preferred embodiment, at least one sensor is provided for determining the fill level of the storage medium, wherein the sensor is preferably designed as a weight sensor, particularly preferably as a load cell. The sensor can not only monitor the fill level of the storage medium, but also simultaneously monitor the dosage of the water treatment substances. This is particularly advantageous for the disinfectant and the agents for adjusting the pH value of the water in the pool. This is particularly easy to achieve using weight sensors, which can determine the dosed amount with sufficient accuracy from the weight difference before and after a dosing process. This increases safety against overdosing and allows water treatment substances to be used very economically.Load cells have the advantage that they can be easily arranged below a holder for the respective storage medium and achieve a high degree of precision in measuring the weight of the stored medium. If the storage medium for the water treatment substances, preferably the disinfectant and the pH adjustment agent, has a volume of no more than 1000 ml, the space requirement of the measuring and dosing device remains limited and it can also be used well in smaller pools, such as whirlpools. The volume of the storage medium is preferably adapted to the given regulations for the storage and transport of hazardous goods. This size limitation thus enables easy transport, for example for refills, via parcel service, since some water treatment substances are classified as hazardous substances.

[0039] Mixing up the disinfectant and the means for adjusting the pH of the pool water can result in incorrect dosing and thus also in health problems. Therefore, according to a further embodiment of the measuring and dosing device, the storage means for the disinfectant and the means for adjusting the pH are preferably designed to be interchange-proof, whereby these are preferably designed as interchange-proof cartridges. Security against interchanging the storage means for the disinfectant and the means for adjusting the pH can be achieved, for example, by different form-fitting means and corresponding design of the storage means. However, the lids of the storage means can also be additionally or alternatively designed to be interchange-proof, so that they can only be connected to the associated dosing agent.There are also other options, such as the use of an electronic identifier, such as an RFID chip, which first activates the dosing agents.

[0040] According to a further embodiment of the measuring and dosing device, the means for determining the water quality, preferably the means for determining the pH value and optionally the means for determining the redox potential of the water in the pool, comprise measuring cells arranged in at least one water channel with inlet and outlet openings, which can either be sealed via means for closing the at least one water channel or are geometrically designed such that the measuring cells are permanently surrounded by water for a certain period of time, for example, several weeks, even when the measuring and dosing device is stored outside the pool. Siphon-like water channels, for example, allow water to be geometrically permanently retained in a specific area of ​​the water channel.

[0041] According to a further embodiment of the measuring and dosing device, the means for closing the water guides with measuring cells arranged therein is designed as check valves or other water-blocking systems, which can particularly effectively block the water guides against water losses and the measuring cells therefore have a longer service life.

[0042] Improved accuracy in determining water quality is achieved by having the water system that carries water past the means for determining water quality, with at least one air bubble separator that prevents or can strongly suppress the transfer of air bubbles to the measuring cells of the means for determining pH and / or redox potential.

[0043] If at least one sensor for measuring electrical conductivity is provided on the body of the measuring and dosing device, the measuring and dosing device can detect whether it is in the water or not and, for example, only release dosing commands when water is detected. The water on the body of this measuring and dosing device design quickly drips off after the measuring and dosing device is removed, so that dosing commands can be safely blocked as soon as the device is out of the water.

[0044] According to a further embodiment, the measuring and dosing device is designed such that the depth of the measuring and dosing device in the water with empty storage means is at least 10 cm, preferably at least 20 cm. This ensures that the water quality measurement is influenced as little as possible by the water surface and achieves greater accuracy in determining the water parameters.

[0045] According to a further advantageous embodiment, the structure of the measuring and dosing device is a maximum of 15 cm above the water edge, even with empty storage containers, so that the pool can be covered without affecting the function of the measuring and dosing device.

[0046] If the dosing means have a plurality of outlet openings for disinfectant and / or for the pH adjusting agent, the disinfectant and / or the pH adjusting agent can be well distributed in the pool.

[0047] In an advantageous embodiment, the control unit is designed to detect cleaning or circulation cycles of the pool based on measurement data from the measuring cells and / or temperature sensors. This ensures that circulation cycles or cleaning cycles of the pool are deliberately used to distribute substances to adjust the water quality, thus achieving an improved distribution of the corresponding substances in the pool.

[0048] Some disinfectants are temperature-sensitive. Their disinfectant effectiveness diminishes after prolonged storage at high temperatures. Therefore, an advantageous design of the measuring and dosing device includes an active or passive cooling device for cooling the disinfectant.

[0049] In the following, the invention will be explained in more detail using exemplary embodiments in conjunction with the drawing, the drawing shows in: Fig. 1 a perspective view of an exemplary embodiment of the measuring and dosing device according to the invention from above in the ready-to-use state,

[0050] Fig. 2 is a perspective view from below of the embodiment of Fig. 1,

[0051] Fig. 3 the embodiment of Fig. 1 in a plan view from above,

[0052] Fig. 4 the embodiment of Fig. 1 in a top view without

[0053] Lid,

[0054] Fig. 5 the embodiment of Fig. 1 in a sectional view along the section line VV of Fig. 3 and

[0055] Fig. 6 the embodiment from Fig. 1 with means for attachment to the pool.

[0056] Fig. 1 shows an embodiment of the measuring and dosing device 1 according to the invention for measuring and treating water in a pool in a perspective view, which in the present embodiment is designed to be floatable and / or submersible. The measuring and dosing device 1 has a hull 1a which is protected from water ingress by a cover 2. The circumferential line 1b shown on the hull 1a indicates the water level when the embodiment is placed in the water-filled pool with full storage means. This ensures that the draft of the measuring and dosing device 1 in the water with empty storage means is at least 10 cm, preferably at least 20 cm. The operation of the measuring and dosing device 1 thus takes place in an area essentially unaffected by surface effects.The lid 2 has two additional screwed lid sections 3 and 4, which can be opened to accommodate storage media within the measuring and dosing device 1. The illustrated embodiment of the measuring and dosing device 1 is, for example, sealed watertight with the lid 2 and its lid sections 3 and 4 and is thus floatable and / or submersible. The geometric shape shown in Fig. 1 is merely one possible embodiment of the measuring and dosing device 1 according to the invention.

[0057] The central area of ​​the cover 2 has status LEDs 5, which can indicate the operating status of the measuring and dosing device 1. In the "rear" area of ​​the body 1a of the measuring and dosing device 1, two outlet openings 6, 7 for treated water are shown.

[0058] Fig. 2 shows a further perspective view of the embodiment from Fig. 1 from below. In Fig. 2, a water inlet opening 8 and a temperature sensor 9 are shown.

[0059] Finally, Fig. 3 shows a top view of the embodiment from Fig. 1 with the cover 2, the other cover areas 3 and 4 and the middle section with status LEDs 5.

[0060] Fig. 4 shows a plan view of the embodiment from Fig. 3 with the lid 2 open. Shown are means 10 and 11 for determining the water quality as well as storage means 13 and 14 for substances for water treatment. From the storage means, which are shown here as cartridges 13 and 14, the water treatment substances are dispensed into the water of the pool via dosing means 15 and 16. For this purpose, the control unit and the power supply of the measuring and dosing device are arranged in a gas-tight and watertight box 18. The storage means are of course connected to the water outlet openings 6, 7 via media lines via the dosing means. The water guides to the water outlet openings 6, 7 as well as the media lines from the storage means 13 and 14 to the dosing means 15 and 16 and to the water guides are not shown in Fig. 4 for the sake of simplicity.

[0061] Using the water quality measurement devices 10 and 11, the control unit can precisely control the dosage of water treatment substances while swimming or diving in the pool, ensuring long-lasting, good water quality. A wireless power supply allows the measuring and dosing device to float independently in the pool. A wired power supply makes it easy to achieve a long operating time in the pool.

[0062] Preferably, in the present embodiment, the means for determining the water quality

[0063] - Means for determining the pH value of the water in the pool 10 and

[0064] - Storage and dosing equipment for at least one disinfectant 13, 15 and

[0065] - Storage and dosing means for at least one agent for adjusting the pH value of the water in the pool basin 14, 16 are provided. With this variant of the exemplary embodiment, the disinfectant can be released continuously or at set intervals, for example, while simultaneously achieving a constant disinfection effect and thus good water quality for swimming in the pool via the control unit and the means for determining the pH value of the water. A constant dosage of an aqueous solution containing hypochlorous acid, sodium hypochlorite, and sodium chloride, or dosages at set intervals, can be used as the disinfectant at a set pH value. This is particularly economical.

[0066] Preferably, as a means for determining the quality of the pool water, a means for determining the redox potential of the water in the pool basin 11 is additionally provided, so that an aqueous solution comprising mixtures of chlorine-1, chlorine-II oxides (CK ), and sodium chloride can be used for disinfection, which is particularly effective. Preferably, as shown in Fig. 2, a temperature sensor 9 is provided at the bottom of the measuring or dosing device. However, the temperature sensor can also preferably be arranged within water channels used to determine the water quality.

[0067] In addition, means for sucking water into the measuring and dosing device and ejecting water from the measuring and dosing device are provided, here in the form of a pump 17 and water pipes not shown, wherein the water is guided past the means for determining the water quality, preferably past the means for determining the pH value 10 and / or past the means for determining the redox potential 11 and further optionally past openings of dosing means 15, 16 and optionally also past a temperature sensor 9 before being ejected.

[0068] As can be seen in Fig. 1 and Fig. 2, the illustrated embodiment of the measuring and dosing device 1 has a longitudinal extension in one direction, wherein the means 17 for sucking water into the measuring and dosing device and expelling water from the measuring and dosing device have at least one suction opening 8 and at least one outlet opening 6, 7, wherein the at least one suction opening 8 is arranged at a distance of at least one third of the longitudinal extension of the measuring and dosing device from the outlet opening 6, 7 below the water level, preferably at the bottom of the measuring and dosing device 1.

[0069] Preferably, the dosing means for the water treatment substances, particularly preferably the dosing means for the disinfectant and / or the dosing means for the agent for adjusting the pH value of the pool water, are designed to discharge water enriched with the agent to be dosed from the measuring and dosing device. For this purpose, the dosing means can, for example, have their own water lines that are connected to the pool water, and the pool water can be drawn in for dosing. This ensures good dilution of the water treatment substances during dosing, which increases dosing accuracy.

[0070] Fig. 5 now shows the embodiment from Fig. 1 in a sectional view along the section axis VV of Fig. 3. In Fig. 5, the storage means 13, 14 for water treatment substances are clearly visible. In addition, sensors 19, 20 are provided for determining the fill level of the storage means 13, 14 of the water treatment substances, preferably the storage means for the disinfectant and the means for adjusting the pH value, wherein the sensors 19, 20 are preferably designed as weight sensors, particularly preferably as a load cell. The sensors 19, 20 can be used to very effectively monitor the dosing process of the dosing agents by measuring the weight of the storage means 13, 14 before and after each dosing process. A further parameter for monitoring the dosing could also be a measurement of the motor current of the respective dosing agent during the respective dosing.

[0071] The storage means 13, 14 preferably have a maximum volume of 1000 ml so that they can be distributed by parcel service. The storage means 13, 14 for the substances for water treatment, preferably the disinfectant and the agent for adjusting the pH value, are preferably designed to be interchange-proof, and are preferably designed as interchange-proof cartridges 13, 14. This interchange-proof feature can be provided, for example, by different geometric shapes of the cartridges 13, 14 or by interchange-proof lids 21, 22, additionally or alternatively. In addition, there are further options not shown in Fig. 5 for ensuring interchangeability, for example by using an electronic identifier, for example an RFID chip, which first activates the dosing means 15, 16. The dosing means 15, 16 shown in Fig.The means for determining water quality 10, 11 shown in Fig. 4, preferably the means for determining the pH value and / or the means for determining the redox potential of the water in the pool, have measuring cells and are preferably arranged in at least one water guide 23 shown in Fig. 5 with an intake opening 8 and an exhaust opening 6, 7, which can either be sealed via means for closing the at least one water guide 23 or are geometrically designed such that the measuring cells 10, 11 are surrounded by water for a certain period of time, for example, for at least two weeks, even when the measuring and dosing device 1 is stored outside the pool. This can extend the service life of the measuring cells and ensure constant measurement results even if the measuring and dosing device is not in the pool for a longer period of time.Preferably, the means for sealing the measuring cells are designed as a check valve, which enables good sealing and can also be controllable.

[0072] Not shown in Fig. 1 is that in the exemplary embodiment of the measuring and dosing device 1, at least one sensor for measuring the electrical conductivity is provided on the hull 1a. This sensor can enable the operation of the measuring and dosing device 1 or even just its dosing agent, for example, only upon contact with water, i.e., a high electrical conductivity, as can be measured in water.

[0073] As shown in Fig. 1, in the illustrated embodiment, the dosing means have a plurality of outlet openings 6, 7 for water treatment substances, preferably for at least one disinfectant and / or for at least one pH-adjusting agent. The illustrated embodiment utilizes the water guide 23 for this purpose, which is extended to the outlet openings 6, 7.

[0074] The control unit provided in the exemplary embodiment can be configured to detect pool cleaning cycles based on measurement data from the measuring cells 10, 11 and / or the temperature sensor 9 in order to utilize an advantageous time for dosing the water treatment substances. The cleaning cycles regularly include a circulation of the water in the pool, thus enabling very good mixing of the water treatment substances, in particular the disinfectant and the pH-adjusting agents.

[0075] Finally, active or passive cooling devices can be provided in the area of ​​sensors 19 and 20 to cool the water treatment substances, preferably the disinfectant. Cooling can increase the effectiveness and durability, especially of the often temperature-sensitive disinfectants.

[0076] Fig. 6 shows the embodiment of the measuring and dosing device 1 from Fig. 1 with means 24 for attaching the measuring and dosing device 1 to a pool. The means 24 for attaching the measuring and dosing device 1 to the pool are designed here in the form of a hook-shaped holder. The means 24 are preferably adapted to the respective pool. This allows the measuring and dosing device 1 to be suspended inside the pool or outside the pool. Alternatively, but not shown, the measuring and dosing device 1 can have means for stable positioning, which can be provided by a receptacle into which the measuring and dosing device 1 is placed in order to obtain a stable position. It is also conceivable that the means for stable positioning are implemented via the body of the measuring and dosing device 1.

Claims

Patent claims 1. Portable measuring and dosing device (1) for measuring and chemically treating water in a pool with - means for determining the water quality in the pool (10, 11), - at least one storage and one dosing means (13, 14, 15, 16) for at least one water treatment substance, - at least one control unit for controlling the dosing agents (15, 16), preferably depending on the water quality in the pool and - means for supplying power to the measuring and dosing device (1).

2. Device according to claim 1, characterized in that the measuring and dosing device (1) has a protection class of 1P55 (?) or higher against the ingress of water and / or is floatable and / or submersible.

3. Device according to claim 1 or 2, characterized in that the measuring and dosing device (1) has means (24) for fastening on or in the pool (10) and / or means for stable positioning of the measuring and dosing device outside the pool (10).

4. Device according to one of claims 1 to 3, characterized in that as a means for determining the water quality - means for determining the pH value of the water in the pool (10) and - Storage and dosing means for at least one disinfectant (13, 15) and - storage and dosing means are provided for at least one agent for adjusting the pH value of the water in the pool (14, 16).

5. Device according to one of claims 1 to 4, characterized in that Means are provided for determining a redox potential of the water (11) in the pool.

6. Device according to one of claims 1 to 5, characterized in that at least one temperature sensor (9) is provided for measuring the temperature of the water in the pool.

7. Device according to one of claims 1 to 6, characterized in that Means (17) are provided for sucking water into the measuring and dosing device (1) and expelling water from the measuring and dosing device (1), wherein the water is guided past the means for determining the water quality (10, 11), preferably past the means for determining the pH value (10) and / or past the means for determining the redox potential (11) and further optionally past openings of dosing means (15, 16) before being expelled.

8. Device according to claim 7, characterized in that the means (17) for sucking into the measuring and dosing device have at least one inlet opening (8) which is arranged in relation to the at least one outlet opening (6, 7) of the means for expelling water from the measuring and dosing device (1) in such a way that no freshly prepared Water is sucked from at least one outlet opening (6,7) into the intake opening.

9. Device according to one of claims 1 to 8, characterized in that the dosing means of the substances for water treatment (15, 16), preferably the dosing means (15) of the disinfectant and / or the dosing means (16) of the agent for adjusting the pH value of the water in the pool are designed to eject water enriched with the agent to be dosed from the measuring and dosing device (1).

10. Device according to one of claims 1 to 9, characterized in that Sensors (19, 20) are provided for determining the fill level of the storage means (13, 14) of the substances for water treatment, preferably the storage means (13) of the disinfectant and the storage means (14) of the agent for adjusting the pH value, wherein the sensors (19, 20) are preferably designed as weight sensors, particularly preferably as a load cell.

11. Device according to one of claims 1 to 10, characterized in that the storage means (13, 14) of the water treatment substances, preferably the disinfectant and the agent for adjusting the pH value, have a volume of a maximum of 1000 ml.

12. Device according to one of claims 1 to 11, characterized in that the storage means (13, 14) of the water treatment substances, preferably the storage means (13) of the disinfectant and the storage means (14) of the agent for adjusting the pH value are designed to be interchange-proof, wherein these are preferably designed as interchange-proof cartridges (13, 14).

13. Device according to one of claims 1 to 12, characterized in that the means for determining the water quality (10, 11), preferably the means for determining the pH value (10) and / or the means for determining the redox potential (11) of the water in the pool basin have measuring cells arranged in at least one water guide with intake and discharge openings (6, 7, 8), which are either sealable via means for closing the at least one water guide or are geometrically designed such that the measuring cells are surrounded by water even when the measuring and dosing device (1) is stored outside the pool basin, preferably for a period of at least two weeks.

14. Device according to claim 13, characterized in that the means for closing the water guide (23) with measuring cells arranged therein is designed as a check valve.

15. Device according to one of claims 1 to 14, characterized in that the water guide (23) which guides water past the means for determining the water quality (10, 11) has at least one air bubble separator which can prevent or strongly suppress the further transmission of air bubbles to the means for determining the water quality (10, 11).

16. Device according to one of claims 1 to 15, characterized in that at least one sensor for measuring an electrical conductivity on the fuselage (la) the measuring and dosing device (l) is provided.

17. Device according to one of claims 1 to 16, characterized in that the depth of the measuring and dosing device (1) in the water with empty storage means is at least 10 cm, preferably at least 20 cm.

18. Device according to one of claims 1 to 17, characterized in that the dosing means (15, 16) have a plurality of outlet openings (6, 7) for substances for water treatment, preferably for at least one disinfectant and / or for at least one agent for adjusting the pH value.

19. Device according to one of claims 1 to 18, characterized in that the control unit is designed to detect cleaning cycles of the pool on the basis of measurement data from the measuring cells and / or temperature sensors (9).

20. Device according to one of claims 1 to 19, characterized in that an active or passive cooling device is provided for cooling the substances for water treatment, preferably the disinfectant.

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