DE102006049990A1 - Filter for cleaning swimming pool water, has filter housing, in which filter fleeces as filter material are inserted one above the other in horizontal layers, and unit, which releases acoustic/optical warning signal from given actual value - Google Patents

Abstract

The filter (10) for cleaning swimming pool water (14), comprises a filter housing, in which filter fleeces as filter material are inserted one above the other in uniform horizontal layers (12), and an unit, which incorporates the addition of the filter and releases an acoustic or optical warning signal from a given actual value and/or switches pump mechanisms and/or opens a bypass, through which the water to be cleaned is guided to the filter. A functional filler (16) is introduced in the form of a powder or granulates between the two layers. The filter (10) for cleaning swimming pool water (14), comprises a filter housing, in which filter fleeces as filter material are inserted one above the other in uniform horizontal layers (12), and a unit, which incorporates the addition of the filter and releases an acoustic or optical warning signal from a given actual value and/or switches pump mechanisms and/or opens a bypass, through which the water to be cleaned is guided to the filter. A functional filler (16) is introduced in the form of a powder or granulates between the two layers, which are connected with one another with respect to the type of pads, so that the filler does not escape from an intermediate chamber. The filter is arranged between an outlet and an inlet of the swimming pool, so that the water downwardly flows through by the layers. All fibers of the filter fleece are functionally formed as a layer. The fibers are coated with a germ-killing substance and are activated carbon fiber. The layers are formed as compound structure (18). The filter is formed, so that it is interchangeable individually or in the compound structure. Functionally formed layers or compound structures are formed, so that the layers are regeneratable. The filter is formed, so that the type of layers arranged in the filter is freely assembled individually or in the compound structures in dependent of expected degree of pollution of the water to be cleaned. The layers lying one above the other in flow direction has a reduced pore size.

Description

The The invention relates to a filter for water purification of swimming pools according to the preamble of claim 1.

in the According to the invention, the term swimming pool is broad. It also includes any type of swimming pool or pool, in particular a hot tub / jacuzzi, a spa or a hot tub.

Out The practice known swimming pools are usually with facilities for circulate performed in the pool water. To be turned around the water over a known surface suction, namely a so-called skimmer, from one or more pumping devices sucked off and a more or less intense filter in the form a coarse dirt filter, in particular in the form of a screen supplied, which the or the pump means is connected upstream. This should coarse dirt particles, such as leaves and insects, up to to fine particles, for example pollen and dander, from the circulated Water are filtered out. After passing the filter is the Water usually over one below the water surface the swimming pool arranged inlet back into the pool initiated.

Currently In practice, mainly so-called cartridge filters for Cleaning of swimming pool water used. These consist of a fold-like arranged filter fleece, which between two Lid is firmly molded and radially from outside to inside of the water to be cleaned flows through becomes.

such Cartridge filters should be cleaned at intervals specified by the manufacturer or replace.

The Cleaning is excessive here complicated and usually incomplete.

Problematic is already the removal of such cartridge filters from their holding devices. These are namely arranged below the water level of the swimming pool, so that already at the time of removal, d. H. when pulling out of the pool water, a large Part of on the surface the fold-like filter fabric located impurities get back into the pool water. The cartridge filter So it is already at the time of removal by the pool water even rinsed or rinsed off. One Lowering the water level would be to solve this Problems possible, but uneconomical.

To the removal of the cartridge filter must be cleaned consuming. This usually happens by spraying with water by means of a garden hose. That at best the coarse impurities are removed, goes without saying. In particular microorganisms can up hardly be removed this way. Even if these are already through a disinfection are killed, can they continue to be a threat to represent humans, especially since such germs themselves the nutrient medium for new ones Germs can form. The danger for The human is particularly pronounced in one possible Fungal infestation of the pool water. Here the mushrooms can indeed by means of known disinfectants are made virtually sterile, but what only means that no more spores are formed. The so-called Mycelium, which is the totality of all filamentous cells of a fungus represents, remains first in the water and disintegrates due to a possible flow or another movement in the water in various fragments. These fragments then get into the cartridge filter. Due to the complicated Removal and the poor cleaning ability of the cartridge filter can however big Quantities of these fragments get back into the water of the pool and put there a latent danger for to the people

Furthermore has proved to be disadvantageous that such cartridge filter only relatively rarely be changed, so these fragments for days or Weeks remain in the cartridge filter, causing a Rückverkeimung is possible. This is of course also for other germs.

There The cartridge filter not only to clean regularly, but also at predetermined intervals to be replaced by a new relatively expensive cartridge filter, is the water purification of a swimming pool with such Cartridge filters also costly. Some manufacturers of such Cartridge filters also recommend a time-consuming drying of the Cartridge filters to pathogens to the livelihood revoke. So that the swimming pool continues to operate during this time can be, then it is disadvantageously necessary to another relatively expensive set of cartridge filters vorzuhalten.

The Water in the pool should be hygienically treated so that It is always free of transferable Pathogens and other water damage. Therefore lies The present invention, the object of a constructive simple and inexpensive Filter for cleaning swimming pool water available too with which the water is in a perfectly hygienic condition Can be brought or preserved.

These Task is a filter for water purification of swimming pools, which between a drain and an inlet of the swimming pool is arranged and has filter fleece as a filter material, characterized solved, that at least one, preferably a plurality of filter webs in plane, horizontal layers over each other arranged in the filter housing are inserted, the filter so between drain and inlet arranged is that the layers from top to bottom of the water to be purified flows through become.

Thereby, that the at least one, preferably several layers are flat and horizontal are arranged in the filter and from top to bottom of the to be cleaned Water flows through Become surprising simple way prevents when taking the below the Water level filter positioned previously from the to be cleaned Water filtered contaminants back into the pool water be rinsed back.

rough Contaminants remain on the surface during removal top layer filter fleece and are by the at the time of removal water suction on the surface of the filter recorded in the top position. Unlike the ones in the prior art used cartridge filters in which the filter fleece vertical is already arranged, there is already a significant improvement. Especially remain according to the invention already Mycelium fragments in the filter according to the invention are particularly problematic and do not get back into the pool water, where there is a latent danger to humans represent. According to the invention thereby optimal hygiene ensured because of the exchange of Filter fleece then also a recontamination can not take place anymore.

Thereby, that the layers of filter fleece are only inserted in the filter housing These are particularly easy to remove and new filter fleece replace. Since filter fleece are particularly inexpensive, this change should for hygienic reasons preferably always after use of the swimming pool. The Filter fleece is insofar a disposable article. A hygienic cleaner Filter is a basic requirement for the hygiene of the pool water, which with the filter according to the invention Fulfills becomes. Only hygienic swimming pool water protects against health risks during use.

Under a filter housing Within the meaning of the invention, each receiving device is understood in which the layers of filter fabric are arranged horizontally and one above the other can, so that they are evenly from flows through the top of the water to be purified.

It It should be remembered that the cleaning traditionally used, already relatively expensive filter also costs for the consumption of water and Causes chemicals. Often recommend the manufacturers of such filters and their drying, to counteract germs. This in turn means disadvantageous that requires a second relatively expensive set of filter cartridge is to maintain the swimming pool operation during the dry season.

The Type of filter fabric used in the filter is from the Type of swimming pool, especially of the expected impurities dependent and of course from the hygiene claim of the pool operator. In principle, they are various designs known filter nonwoven, which are more or less bulky and have different pore sizes.

in the According to the invention, a filter fabric is also a filter nonwoven fabric understood, so a textile fabric from single fibers. The fibers can be natural Polymers, e.g. As cellulose, or synthetic polymers, preferably made of polyester, PP (polypropylene) or PE (polyethylene). This execution is preferred.

When possible less preferred alternative may under the invention a filter fabric also a filter fabric, knitted fabric and knitted fabric, made of yarns, to be understood.

Especially preferred for the purposes of the invention are single-variegated layers, i. documents, each of only one type of fibers, so not from fiber blends exist, because single-variegated layers can be recycled particularly well. The known from the prior art filter for cleaning pool water On the other hand, they are made of different materials that are not can be easily separated.

It is known that the above-mentioned circulation systems in addition mostly formed with a metering device or with a feed device, by means of the circulated Water with additives, such as chlorine, ozone and / or the like, to reduce nucleation for known reasons. It is also known that by-products are formed during the chlorination of water, the dependent be classified as harmful to health by the concentration. Known is still that a chemical disinfection is used a so-called depot effect, ie a permanent disinfection to reach in a swimming pool.

there is disadvantageous that the above-described and known from practice Swimming pool due to a high need for the treatment of the Swimming pool water provided additives are characterized what on the one hand to an undesirable increase the operating costs leads and on the other hand an environmental burden, since that with the Additives added water when changing to the sewer initiated and in a sewage treatment plant must be reprocessed before returning to the natural Water cycle can be initiated.

As already mentioned, The filters used in the prior art are usually in mechanically cleansed according to manufacturer's specifications which is complicated and incomplete. Both on the filter surface as well as in the filter material are after a mechanical cleaning disadvantageous continues to be several previously removed from the water substances Find. In particular, fats and oils remain frequently in the filter. The result is a higher one Consumption of disinfectants or so-called water care products.

With known disinfecting and cleaning agents leave such impurities difficult to remove from the filter, especially since these funds in the first Disinfect the line. Consequently, the so-called Biomatrix and / or deposits of organic origin often in the Filter material and can there catalytically to, for example, oxygen-based disinfectants, For example, hydrogen peroxide, act. This is the disinfectant on the surface consumes impurities without the desired disinfecting effect to be able to unfold.

Thereby, that the filter fleeces used according to the invention are inexpensive interchangeable, the so used filter fleece daily can be eliminated is achieved that the amount of added to the pool water Additives can be reduced. It will not be chemicals only for the water treatment, but also for the filter cleaning itself saved.

A Development of the invention provides that at least some, preferably all fibers of the filter fleece at least one layer functionally formed are.

Thereby It also ensures that contaminants commonly pass through the pores the filter fleece used pass, eliminated or made harmless can be.

For example can Be coated fibers with at least one germicidal substance.

A Another preferred embodiment is in that the fibers consist of activated carbon.

By the activated carbon also become microorganisms, but also others organic impurities such as odors and the finest suspended particles away. In particular, you can undesirable by the activated carbon Byproducts that resulted from the chlorination of the water are deprived of water.

A advantageous embodiment of the invention provides that between two layers at least one functional filler, preferably in the form of a Powder or granules, is introduced, the two layers are connected in the manner of a pad in such a way that the filler can not escape from the gap. joining techniques for nonwovens or nonwovens are sufficiently known to the person skilled in the art. Prefers In the present case bonding techniques that are free of adhesive. The filter can thus contain various layers. A structure may be, for example To look like that provided a first, lowermost layer of filter fabric is, about it a pad of two layers with interposed functional Filler, about that again a pad of two layers with interposed functional filler and finally a top layer filter fleece.

Thereby is also achieved that also impurities, which usually the pores of the filter fleeces used pass, eliminated or made harmless can be.

For example can as a filler Preferably, an active granules are used, which the the Expert known effects in the cleaning of swimming pool water unfolded.

One Another preferred functional filler is catalytically active Granules for lime treatment.

One Such granules have proven to be particularly suitable for lime treatment of swimming pool water proved. The mineral content or lime content remains the same treatment, but the minerals are in structure as they are bound by seed crystals. As a result, limescale, which is the swimming pool technique but also the aesthetic Influence impression of swimming pool negatively, avoided.

When other functional fillers are preferably fragrances, antibacterial substances and / or surface-active Substances can be used.

Farther is provided that two or more layers formed as a composite are, whereby the layers are particularly easy to remove from the filter and insert evenly to let.

Preferably the filter is designed such that the layers individually or in Composite are interchangeable. In the simplest and most preferred Case, the filter with this purpose in filter housing in the form of a box water-permeable Floor on, in which the individual layers or composites inserted are.

According to one another preferred embodiment the filter consists of a frame in which the layers or composites can be inserted laterally by means of cassettes. This embodiment has the advantage that individual layers or composites specifically interchangeable are while other layers, for example, longer are usable. Instead of the frame, it can also be a act already existing filter shaft of the swimming pool, in which the cassettes can be inserted.

Thereby, that single or multiple layers or composites in a cassette will be inserted as well achieved that the filter with pressure or negative pressure, much like one in a coffee machine with filter pad, operate. The Cassette is in the simplest case a water-permeable solid support. It is possible, that single or multiple layers or composites between two water-permeable solid carrier be placed.

A Development of the invention provides that preferably the functional trained layers or composites are designed such that these for cost reasons are regenerable. Due to the flat structure of the layers or Associations could this invention - if necessary - especially flushed easily and effectively and therefore also be used several times.

Conveniently, the filter is designed such that the type of arranged in the filter Layers individually or in combination depending on the expected Pollution degree of the water to be purified freely composable is.

Of the Pollution degree is dependent the type of pool, the frequency of use of the pool Location of the swimming pool etc.

The Layers or composites can advantageous therefore by the user himself with regard to the desired Filter properties are joined together whereby a variable use is possible.

According to one advantageous embodiment of the invention, the one above the other lying layers in the flow direction each a reduced pore size. Conveniently, These layers form a composite, thus enabling a wide spectrum undesirable Efficiently remove particles from the water to be purified without that the filter adds up prematurely.

A Development of the invention provides that the surface of top layer is designed such that particles get caught in it. This ensures that these particles in the removal of the in the swimming pool, do not put the filter back into the pool water be delivered. Preferably, to remove the filter is a Cover placed on the top layer, which the particles on the surface to hold onto the top layer.

Of the inventive filter replaced expediently the known from the prior art filter for swimming pool cleaning. Thus, one or more downstream of the filter is preferably Pumping equipment for conveying a predetermined amount of water provided by the filter. Farther the filter comprises a skimmer which precedes the filter and the course of the swimming pool forms. But there is also the possibility the individual layers or composites in the according to the prior art introduce known Skimmersieb that then preferably even the same filter housing forms. Of course However, the filter may also have its own housing, with this then upstream of the skimmer sieve. This already allows existing swimming pool particularly easy with the filter according to the invention retrofitted become.

Preferably at least one means is provided, which is to add the filter registered and from a given setpoint an acoustic or optical warning signal triggers and / or possibly existing pump devices off and / or opens a bypass, by passing the water to be purified past the filter.

Thereby the operator of the swimming pool is reminded of the filter change, once a filter change should have been forgotten. By the Elimination of any existing pumping equipment or through the opening a bypass, become possible damage avoided at the pumps.

following The invention will be explained with reference to an embodiment, the is shown in the drawing. In this shows

1 a schematic representation of a filter according to the invention for the purification of Pool water in longitudinal section.

The in 1 schematically illustrated filter 10 serves for the cleaning of swimming pool water and is arranged between a drain, not shown here, and an inlet of the swimming pool.

The filter 10 includes four superimposed level, horizontal layers 12 Filter fleece, the filter 10 is arranged between the drain and the inlet, that the layers 12 from top to bottom of the water to be purified 14 be flowed through.

The filter fleece of the individual layers 12 are different type and thickness. Only the two middle layers 12 Filter fleece are the same kind. Between these two layers 12 is a functional filler 16 introduced in the form of an activated carbon granules. These two layers 12 are connected at their edges in the manner of a pad, as it is known for coffee machines, for example, so that the filler 16 can not escape from the gap.

Thus, the two middle layers form 12 a composite 18 with a functional filler 16 , The two outer layers 12 Although touching the two middle layers 12 but are not affiliated with them.

The layers 12 or the composite 18 are inserted in a filter housing. The design of the filter housing is arbitrary, so it can be round or rectangular in cross section for example. The shape depends on the structural conditions of the swimming pool to be formed with a filter according to the invention. The height of the filter housing depends on the type and number of layers or composites used. It is important that the water to be purified 12 so flows into the filter housing and emerges from this again that the layers 12 flows through from top to bottom.

In the simplest and most preferred case, the filter housing is a lidless box 20 whose rigid bottom 22 is permeable to water. On this floor 22 the individual layers or the composite are arranged. On the topmost location 12 is preferably the sieve 24 a widely used in the art, not shown Skimmers arranged here. The box 20 itself is used in a widely used according to the prior art, not shown here filter shaft of the pool below the skimmer.

After each use of the pool, the box can be 20 very easy to remove from the shaft. Because the box 22 below the water level of the pool, the water to be purified but at the removal of the filter 10 the individual layers flows through from top to bottom, is prevented in a surprisingly simple way that contaminants get back into the pool water. The contaminants are therefore not removed from the filter during removal 10 rinsed.

After the filter 10 was removed from the filter shaft, the layers can be 12 or the composite 18 simply exchange. As it is in the layers 12 To filter fleeces is that are not very expensive, these are best disposed of hygienic reasons, at best, and by new layers 12 replaced. documents 12 which are longer usable, however, can remain in the filter and be disposed of at a later date.

Preferably disposal after use is provided. Functionally trained layers 12 or composites which may be more expensive to produce, but can also be regenerated according to the invention.

Based on 1 you can clearly see that the filter 10 Depending on the expected degree of contamination of the water to be cleaned extremely easy with appropriate layers or composites can be assembled.

The superimposed layers 12 in each case have a reduced pore size in the direction of flow. The topmost location 12 thus has the largest pore size, the lowest layer 12 the smallest.

Preferably, the filter according to the invention provides 10 the only filter in the treatment of the pool water. Further filters are therefore no longer required according to the invention.

Downstream of the filter, as is known, one or more pumping means, not shown here, for conveying a predetermined amount of water through the filter 10 be provided.

10

filter

12

location made of filter fleece

14

water

16

filler

18

composite

20

box

22

ground

24

skimmer sieve

Claims (11)

Filter ( 10 ) for the water purification of swimming pools, which is arranged between a drain and an inlet of the swimming pool and has filter fleece as filter material, characterized in that at least one, preferably several filter fleece in flat, horizontal layers ( 12 ) are arranged one above the other in the filter housing, wherein the filter is arranged between drain and inlet such that the layers ( 12 ) from top to bottom of the water to be purified ( 14 ) are flowed through. Filter ( 10 ) according to claim 1, characterized in that at least some, preferably all fibers of the filter fabric of at least one layer ( 12 ) are functionally formed. Filter ( 10 ) according to claim 2, characterized in that the fibers are coated with at least one germicidal substance. Filter ( 10 ) according to claim 2, characterized in that the fibers are activated carbon fiber. Filter ( 10 ) according to one of claims 1 to 4, characterized in that between two layers ( 12 ) at least one functional filler ( 16 ), preferably in the form of a powder or granules, wherein the two layers are connected to one another in the manner of a pad in such a way that the filler ( 16 ) can not escape from the gap. Filter ( 10 ) according to one of claims 1 to 5, characterized in that two or more layers ( 12 ) are formed as a composite. Filter ( 10 ) according to one of claims 1 to 6, characterized in that the filter ( 10 ) is formed such that the layers ( 12 ) are individually or in combination interchangeable. Filter ( 10 ) according to one of claims 2 to 7, characterized in that preferably functionally formed layers ( 12 ) or composites are designed such that they can be regenerated. Filter ( 10 ) according to one of claims 1 to 8, characterized in that the filter ( 10 ) are designed such that the type of the filter ( 10 ) arranged layers ( 12 ) individually or in combination depending on the expected degree of soiling of the water to be purified ( 14 ) is freely composable. Filter ( 10 ) according to one of claims 1 to 9, characterized in that the superimposed layers ( 12 ) each have a reduced pore size in the flow direction. Filter ( 10 ) according to one of claims 1 to 10, characterized in that at least one means is provided which registers a clogging of the filter and triggers an audible or visual warning signal from a predetermined desired value and / or optionally switches off existing pump devices and / or opens a bypass, by passing the water to be purified past the filter.