Device for supplying a greywater tank with fresh water from a freshwater connection and system for greywater use

Abstract

Device (300) for supplying a grey water tank (586) with fresh water from a fresh water connection (302), wherein the fresh water connection (302) has an outlet opening (316), characterized in that in the flow direction (S) of the fresh water, downstream of the fresh water connection (302), there is a fresh water tank (304) for temporarily storing the fresh water, which is connected to the fresh water connection (302).

Description

The present invention relates to a device for supplying a grey water container with fresh water from a fresh water connection according to the preamble of claim 1 and to a system for grey water use.Numerous sanitary elements are known which guide a flushing liquid, preferably to the cold flushing water, to its operation. These include, for example, water closets (WC), bidets, urinals and the like.It is desirable that grey water is also used in the future for example for such rinsing processes in order to save drinking water. However, suitable devices are to be provided for this purpose, with which the grey water can be supplied to the grey water collector by a grey water generator, with which the grey water can be stored and with which, if appropriate, a supply of fresh water, in particular drinking water, to the grey water is made possible without impairing the drinking water safety. The supply of fresh water is necessary, for example, when sufficient grey water is not available.The present invention relates to fresh water supply, and it is an object of the present invention to provide a solution which brings improvements to it. Preferably, the supply should be effected in such a way that contamination of the fresh water with grey water is effectively prevented. The device should preferably be of a simple design and be able to be produced cost-effectively. In particular, the supply with fresh water should only take place when it is absolutely necessary.This object is achieved with the device according to the invention as claimed in claim 1 and the system according to the invention for gray water use as claimed in claim 12.It was recognized by the inventor that this object can be achieved in a surprising manner in a particularly simple manner if a fresh water container for temporarily storing the fresh water exists downstream of the fresh water connection in the flow direction of the fresh water, because a transfer of the grey water to the fresh water connection can then be prevented.The device according to the invention for supplying a grey water container with fresh water from a fresh water connection, wherein the fresh water connection has an outlet opening, is characterized in that a fresh water container for temporarily storing the fresh water is provided downstream of the fresh water connection in the flow direction of the fresh water, which fresh water container is connected to the fresh water connection."Grey water" in the context of the present invention is a fecal-free, low-soiling wastewater from baths, showers or washing machines, which can serve as service water by preparing a second use. Kitchen waste water is not part of grey water because of the higher load with fats and food waste."Fresh water" is, within the scope of the present invention, an unused, uncontaminated water, including drinking water."Drinking water" in the context of the present invention is a fresh water with such a high purity level that, according to the officially defined quality requirements, it is classified as suitable for human use, in particular for drinking and food preparation.Liquids are classified into five different categories according to the danger types they originate from according to EN 1717 or DIN 1988-4:Category 1 denotes a liquid which does not pose any health hazard and which is without impairment in terms of odor, taste or color. This includes, for example, cold drinking water.Category 2 denotes a liquid from which there is likewise no risk to health, but which has an adverse effect on the odor, taste, color or temperature. These include, for example, coffee, tea, drinking water which is colored by rust and warm drinking water.Category 2 denotes a liquid from which health hazards arise from less toxic substances. These include glycol, sodium hydroxide solution, heating water without addition and copper sulfate solution.Category 4 denotes a liquid from which health hazards arise from toxic, very toxic, cancer-causing, mutagenic or radioactive substances associated with the risk of life. These include chemicals, paints, chemical cleaning, electroplating baths, insecticides.Category 5 denotes a fluid from which health hazards arise from diseases which can be transmitted by microbial or viral pathogens if there is a risk of life. These include hepatitis viruses, salmonella and fecal contaminated waterDrinking water coming from the fresh water connection is obviously a category 1 liquid.Drinking water which is stored open and without special provisions is classified as Category 3 liquid for safety reasons. This also includes the fresh water stored in the fresh water container.For safety reasons, untreated grey water is classified as a Category 5 liquid. This also includes the grey water stored in the grey water container.In an advantageous further development, it is provided that one or more hydraulic jumps exist downstream of the fresh water connection in the flow direction of the fresh water. Such jumps build up a cascade for water supply, by means of which a transfer of the grey water to the fresh water connection can be prevented particularly effectively. Advantageously, vertical offsets of the fresh water flow exist in the jumps.In an advantageous development, it is provided that the fresh water connection is a drinking water connection. Then, a sufficient fill level in the grey water container can always be established very easily, even if not sufficient grey water is available.In an advantageous further development, it is provided that the fresh water container is arranged between the fresh water connection and the grey water container. This makes it possible to integrate the device easily into grey water usage systems.In an advantageous development, it is provided that the fresh water container has a treatment agent (for example a treatment and / or cleaning agent) for the fresh water, which is preferably arranged in a corresponding receptacle which is accessible for the fresh water stored in the fresh water container. In particular, the receptacle should be arranged at least partially below a maximum fill level in the fresh water container. The fresh water can then be pretreated before transfer to the grey water container, which is more effective here than in the grey water container because the grey water would also be treated there.In an advantageous further development, it is provided that a wall is provided which prevents fresh water from being able to pass from the fresh water connection into the grey water container, bypassing the fresh water container. This prevents fresh water from unintentionally entering the grey water container during normal operation of the device. This makes it possible to ensure that the available grey water is always introduced into the grey water container first and fresh water is supplied to the grey water container only if there is not sufficient grey water available.In an advantageous development, it is provided that the grey water container and the fresh water container are connected to one another, preferably are arranged in a common housing. A grey water utilization device can then be constructed in a particularly compact manner. The connection can be direct, but it can also be indirect or indirect with the interposition of one or more line or storage elements for the fresh water.In an advantageous development, it is provided that the fresh water container and the grey water container have separate container walls which are arranged at least in regions spaced apart from one another, wherein there is preferably an air gap between the container walls. As a result, the fresh water is separated from the grey water by a double wall, whereby the grey water transfer is effectively prevented even if the grey water creeps into the fresh water container.In an advantageous development, it is provided that the fresh water container has a volume in the range from 10 ml to 300 ml, preferably in the range from 40 ml to 100 ml, in particular in the range from 60 ml to 80 ml, with respect to a maximum fill level of the fresh water. Then, a sufficient amount of fresh water is provided without too much fresh water being wasted or having to be processed.In an advantageous development, it is provided that the grey water container is intended for flushing a sanitary object, preferably a toilet, a urinal or the like. The grey water can then be used further particularly well.In an advantageous development, it is provided that the fresh water container has a free water surface of at least 5 cm2to 150 cm2, preferably of at least 10 cm2to 80 cm2and in particular of at least 15 cm2to 30 cm2. The evaporation of the fresh water is then carried, which has the advantage that a sequential filling of the fresh water container and subsequently of the grey water container takes place. This is particularly desirable when a purely hydro-mechanical functional concept exists, in which, for example, the transfer of water from one container to another is controlled via float valves and or non-return flaps. A fill level in the fresh water container lowered by evaporation functions as an additional delay element in the control mechanism.In an advantageous development, it is provided that the outlet opening points vertically downwards onto a water surface in the fresh water container, wherein the outlet opening is preferably arranged on an outlet bend, wherein the outlet bend is in particular an outlet bend bent through 90° in a vertical plane. There is then a particularly reliable separation of the fresh water connection and the fresh water container. In addition, the least possible noise-free filling of the fresh water into the fresh water container is made possible.In an advantageous development, it is provided that the outlet opening is arranged at least 5 mm, preferably at least 10 mm, in particular at least 20 mm above a maximum fill level height of the fresh water container. As a result, there can be a corresponding gradient for the fresh water in the fresh water container without the latter coming into contact with the fresh water connection, i.e. the fresh water can be accumulated accordingly in the fresh water container. There is then also a particularly reliable separation of the fresh water connection (category 1) and the fresh water container (category 3).In an advantageous development, it is provided that the fresh water container has a drain with a vertically upper drain edge and a vertically lower break-off edge, wherein the fresh water can be supplied to the grey water container via the drain. The run-off edge can be identical to the tear-off edge, but this is preferably not. There is then a particularly defined supply line of the fresh water into the grey water container.In an advantageous development, it is provided that the run-off edge is preferably arranged at least 5 mm, preferably at least 10 mm, further preferably at least 20 mm, in particular at least 29 mm below the run-off opening. As a result, there can be a corresponding gradient for the fresh water in the fresh water container without the latter coming into contact with the fresh water connection, i.e. the fresh water can be accumulated accordingly in the fresh water container. This results in a particularly reliable separation of the fresh water connection (category 1) and the fresh water container (category 3).In an advantageous further development, it is provided that the break-off edge is located at a distance vertically above a maximum fill level of the grey water container of at least 5 mm, preferably at least 10 mm, in particular at least 20 mm. As a result, there is a particularly reliable separation of the fresh water container (category 3) and the grey water container (category 5) and thus also of the fresh water connection (category 1) and the grey water container (category 5).In an advantageous development, it is provided that the run-off edge is located at a distance vertically above a maximum fill level height of the grey water container of at least 5 mm, preferably at least 10 mm, in particular at least 20 mm. This results in a particularly reliable separation of the fresh water container (category 3) and the grey water container (category 5) and thus ultimately also of the fresh water connection (category 1) and the grey water container (category 5).In an advantageous development, it is provided that a run-off surface is arranged between run-off edge and break-off edge. This reduces the noise generation. In addition, the outlet is laminarized and the inflow takes place in a targeted manner, whereby foaming in the grey water container can be reduced.If the run-off surface has a vertical length in the range from 1 cm to 10 cm, preferably in the range from 3 cm to 7 cm and in particular of 5 cm, then it is particularly effective.If the run-off surface has a horizontal width in the range from 1 cm to 7 cm, preferably in the range from 2 cm to 5 cm and in particular of 3 cm, then it is particularly effective.If the run-off surface has an inclination with respect to the horizontal in the range 2° to 80°, preferably in the range 4° to 60°, more preferably in the range 6° to 40° and in particular 10°, then it is particularly effective. In addition, due to this inclination, the inflow through the outlet opening and thus also through a filling valve is safely discharged without causing a significant back pressure.If the outlet surface is designed such that it deflects the flow in the outlet in the direction of the fresh water container, then the fresh water can be supplied to the gray water container close to or on a wall of the gray water container. This reduces the noise generation. In addition, the outlet is laminarized and the inflow takes place in a targeted manner, whereby foaming in the grey water container can be reduced. Furthermore, the fresh water inflow can be diverted away from further functional components in the grey water container, in particular an outflow valve, so that its calcification is reduced or prevented.In an advantageous development, it is provided that the outlet surface and / or the outlet edge and / or the separation edge is arranged between a receiving volume of the fresh water container for the fresh water and a discharge surface. This provides splash protection for the fresh water. As a result, on the one hand, the impingement of fresh water on further functional components in the grey water container, in particular a drain valve of the grey water container, can be prevented, so that its calcification is reduced or prevented. In addition, noise generation is reduced.If the baffle extends vertically, it is particularly effective. The deflection surface does not have to extend exactly vertically; it can also be inclined or bent.If the deflection surface has a vertical length in the range from 0.5 cm to 5 cm, preferably in the range from 1 cm to 3 cm, in particular of 2 cm, then it is particularly effective.If the deflection surface has a horizontal width in the range from 1 cm to 10 cm, preferably in the range from 2 cm to 7 cm, in particular of 5 cm, then it is particularly effective.If the discharge surface is part of a discharge channel, a particularly effective spray protection exists.In an advantageous development, it is provided that a passage area of the outlet of the fresh water container is the same size or larger than a passage area of the outlet opening. Then, a build-up of fresh water in the fresh water container is prevented.In an advantageous development, provision is made for there to be an overflow for protecting the outflow against blockage. This results in a more reliable separation of the fresh water container (category 3) from the fresh water connection (category 1) even in the case where the outlet is blocked, because the fresh water is then discharged from the fresh water container via the overflow before reaching the fresh water connection.If the overflow has an overflow edge which is arranged at least 5 mm, preferably at least 10 mm, further preferably at least 20 mm, in particular at least 23 mm below the outlet opening, then there is a particularly reliable separation between the fresh water container (category 3) and the fresh water connection (category 1).If the overflow opens into the grey water container, then no fresh water is lost unused.In an advantageous development, it is provided that the overflow edge is arranged on the discharge surface, preferably as the upper end of the discharge surface. The device is then of particularly compact construction.In an advantageous further development, it is provided that for opening the fresh water connection, an actuating means, preferably in the form of a float valve or a solenoid valve with a fill level sensor, wherein the float valve or the fill level sensor are in contact with the fill level of the grey water container. The fresh water supply to the grey water container can then be controlled particularly well. If the actuating means has delay means, it can be ensured that the grey water container is filled with fresh water only when grey water is no longer available. Preferably, the delay means should bring about a time delay between a drop in the fill level in the grey water container (for example as a result of grey water use) and the supply of fresh water into the fresh water container in the range from 0 s to 30 s, preferably from 5 s to 20 s, in particular from 15 s.In an advantageous development, it is provided that the delay means comprise a container in which a control bore exists, wherein the container preferably has a non-return flap which blocks the inflow of liquid into the container through the control bore. The delay means can then be implemented particularly easily for a float valve. If the container has a cover in order to prevent direct penetration of fresh water from the fresh water container, the delaying means are very precise and only dependent on the fill level in the grey water container.In an advantageous development, it is provided that the delay time of the delay means is greater than the time required for producing a desired level of grey water in the grey water container. Only very little fresh water is then required and the second container can be filled up primarily by the grey water.In an advantageous development, it is provided that the container has an inlet edge which is lower than a maximum fill level height of the grey water container. Then the effect of the delay means is optimized.In an advantageous development, it is provided that the floating body of the float valve is arranged in the container. The effect of the delay means is also then optimized.A method according to the invention for supplying a grey water container with fresh water from a fresh water connection, wherein the fresh water connection has an outlet opening, would be characterized in that a fresh water container is used for intermediate storage of the fresh water downstream of the fresh water connection in the flow direction of the fresh water, which fresh water container is connected to the fresh water connection.In an advantageous development, it would be provided that the device according to the invention is used.Independent protection is claimed for the system according to the invention for grey water use, which comprises the device according to the invention for supplying fresh water, wherein there is additionally a grey water generator and / or a grey water collector.In an advantageous development, the system also comprises the device according to the invention for storing grey water in a grey water container. With this system according to the invention, grey water can be stored excellently in a grey water container, wherein if grey water is not sufficiently available then fresh water can be supplied to the grey water container. With regard to the configuration of the device for storing grey water in a grey water container and the method for storing grey water in a grey water container, reference is made to the utility model application "device for storing grey water" filed on the same day by the applicant, the entire content of which is incorporated by reference in its entirety.If the device according to the invention for supplying a grey water container with fresh water from a fresh water connection is formed with a wall which at least in regions has a spacing from the grey water container, wherein the spacing is formed in particular as an air gap, then the fresh water is separated from the grey water by a double wall and the transfer of grey water to the fresh water container can be prevented effectively even if grey water creeps up on container walls.In an advantageous development, the system also comprises the device according to the invention for supplying grey water from a grey water generator to a grey water collector. Then, the gray water can be perfectly taken out from a gray water generator. Preferably, it can be prepared beforehand, in particular filtered and stabilized. With regard to the configuration of the device for supplying grey water from a grey water generator to a grey water collector and the method for supplying grey water from a grey water generator to a grey water collector, reference is made to the utility model application DE 20 20 2025 101 371.1, filed on the same day by the applicant, "Device for supplying grey water from a grey water generator to a grey water collector", the entire content of which is incorporated by reference in its entirety.In the indicated value ranges, not only the indicated individual values and limit values, but also all intermediate values lying between indicated values are conceivable and relevant. This means that all values lying between the individual values, minimum and maximum values indicated in each case can likewise be present and are essential to the invention. Any intermediate value between the individual values, minimum and maximum values of the respective interval indicated in each case is thus disclosed as being essential to the invention, in particular in respective stages of 0.1 units (for example 0.1 mm, 0.1 cm, 0.1°, 0.1 s). Such an intermediate value may not be within a specified interval, and may be between the boundary of one interval and the boundary of another interval, the boundary of one interval and one singular value, and two singular values as long as the values each refer to the same element.The claims now filed with the application and also the claims later filed are not prejudicative of achieving further protection.If it is found here, upon closer examination, in particular also of the relevant prior art, that one or the other feature is favourable for the object of the invention, but is not of decisive importance, then a formulation is naturally already desired which no longer has such a feature, in particular in the main claim. Such a sub-combination is thus also covered by the disclosure of this application.The relations recited in the dependent claims indicate the further embodiment of the subject matter of the main claim by the features of the respective dependent claim. However, these should not be understood as a omission of achieving independent, objective protection for the features of the dependent claims which refer back.It should be further noted that the embodiments and variants of the invention described in the various embodiments and shown in the figures can be combined with one another as desired. Individual or several features can be exchanged with one another as desired. These combinations of features are also disclosed.Features which have been disclosed only in the description or even individual features from claims which comprise a plurality of features can be adopted at any time as being of importance essential to the invention for delimiting from the prior art in the independent claim / claims, and indeed even if such features have been mentioned in connection with other features or achieve particularly favorable results in connection with other features.Thus, all features shown in the general description of the invention, the description of the exemplary embodiments, the following claims and in the figures can be essential to the invention both individually and in any combination with one another. These features or combinations of features can each be a separate invention, the use of which is expressly reserved. In this case, individual features from the description of an exemplary embodiment do not necessarily have to be combined with one or more or all other features specified in the description of this exemplary embodiment; in this respect, each sub-combination is expressly also disclosed. In addition, physical features of an apparatus, a device or a system can be used in a formulated manner as method features and method features can be used in a formulated manner as physical features of an apparatus, a device or a system. Such reformulation is thus automatically disclosed.The features and further advantages of the present invention will become apparent below on the basis of the description of a preferred exemplary embodiment in conjunction with the figures. Purely schematically show: FIG. 1 shows the device according to the invention for supplying fresh water within the scope of the device according to the invention for storing grey water in a view from above, FIG. 2 shows the device for storing grey water according to FIG. 1 in a first side view, FIG. 3 shows the device for storing grey water according to FIG. 1 in a second side view, FIG. 4 shows the device according to the invention for supplying fresh water in a top view, FIG. 5a shows the device according to the invention for supplying fresh water according to FIG. 4 in a first detailed sectional view, FIG. 5 bshows the device for supplying fresh water according to FIG. 4 in a second detailed sectional view, FIG. 6 shows the device for supplying fresh water according to FIG. 4 in a perspective detailed view from above, FIG. 7 shows the device for supplying fresh water according to FIG. 4 in a perspective view from the side, FIG. 8 shows the device for supplying fresh water according to FIG. 4 in a perspective detailed view from the side, FIG. 9 shows the device for supplying fresh water according to FIG. 4 in a third detailed sectional view, FIG. 10 shows the device for supplying fresh water according to FIG. 4 in a partial sectional view, FIG. 11 shows a perspective detailed view of the device for supplying fresh water according to FIG. 4, FIG. 12a is an overall view of the system according to the invention for gray water use with the device according to the invention for gray water storage, the device according to the invention for gray water supply and the device according to the invention for fresh water supply according to FIG. 4, FIG. 12b is an overall, partly sectional view of the gray water use system of FIG. 12a, FIG. 13 is an exploded view of the gray water use system of FIG. 12a, FIG. 14 shows a further detailed view of the device for storing grey water according to FIG. 1, FIG. 15 is a plan view of the gray water storage device of FIG. 1, FIG. 16 shows a first section through the device for storing grey water according to FIG. 1, FIG. 17 shows a second section through the device for storing grey water according to FIG. 1, FIG. 18a is a top view of the tank housing of the device for storing grey water according to FIG. 1, FIG. 18 bshows a first section through the tank housing according to FIG. 18 a, FIG. 18 cshows a second section through the tank housing according to FIG. 18 a, FIG. 19a is a top view of the first container of the device for storing grey water according to FIG. 1, FIG. 19 bshows a first section through the first container according to FIG. 19 a, FIG. 19 cshows a second section through the first container according to FIG. 19 a, and FIG. 20 shows a detailed view of the device for storing grey water according to FIG. 1.FIGS. 1 to 11, 12 bto 15, 17 and 20 show the device 300 according to the invention for supplying a grey water container with fresh water from a fresh water connection ("device for supplying fresh water"), which is used, for example, within the scope of the system 700 according to the invention for grey water use (cf. FIGS. 12 ato 13 ) together with the device 500 according to the invention for storing grey water ("device for storing grey water - cf. FIGS. 1 to 3, 12 ato 20 ), in various views according to a preferred embodiment. For the sake of better clarity, not all elements of the device 500 for gray water storage are shown in FIG. 15.It can be seen that the system 700 according to the invention for gray water use comprises, in addition to the device 300 according to the invention for supplying fresh water, by way of example a gray water generator 12 in the form of a wash basin, the device 10 according to the invention for supplying gray water from the gray water generator 12 to a gray water collector in the form of a gray water container 586 ("device for supplying gray water") which feeds the flushing of a toilet 702, and the device 500 according to the invention for storing gray water in a gray water container (also referred to as a "tank arrangement").It can also be seen that the device 300 according to the invention for supplying fresh water comprises a fresh water connection 302, a fresh water container 304 with an outlet 306 and an actuating means 308 for actuating the fresh water connection 302.More specifically, the fresh water connection 302 has an outlet bend 310 which has a section 312 running horizontally with respect to the horizontal H and a section 314 running vertically with respect to the vertical V, wherein an outlet opening 316 is located at the lower end of the vertical section 314.A pearlescent effect is produced by numerous perforations 318 (cf. FIG. 10 ), as a result of which a noise reduction takes place during the supply of the fresh water discharged through the outlet opening 316, which will normally be drinking water.For easier cleanability of the outlet opening 316, the latter is designed to be removable from the vertical section 314, wherein a clip connection 320 is present here.In plan view (cf. FIGS. 1 and 4 ), the fresh water container 304 has an approximately crescent-shaped curved shape in order to insert itself into the round outer shape of the tank arrangement 500, on the outer side of which it is arranged.The fresh water container 304 has a deeper part 322 in the region of the outlet opening 316, which is adjoined in the flow direction S by a shallower part 324, which is closed off by a run-off edge 326.The drain 306 extends adjacent to the drain edge 326, which has a side wall 328 as a splash guard and for guiding water, which side wall, with the exception of the drain edge 326, completely surrounds the drain 306. This side wall 328 connects directly to the side wall 329, which surrounds the rest of the fresh water container 304 in a circumferential manner and prevents the transfer of fresh water into other regions of the device 500 for gray water storage and the system 700 for gray water use, except by the outlet 306.This side wall 328 comprises a first vertical section 330 and a second vertical section 332, which run approximately parallel to one another. Opposite the trailing edge 326 is a diverting surface 334 which extends vertically and has an upper edge 338 which defines an overflow edge 338.Inside the outlet 306 there is an outlet blade 340, the edge 341 of which running round at the bottom forms the tear-off edge. This run-off blade 340 is connected to the section 332 of the side wall 328 and also to the discharge surface 334, but not to the section 330 and also not to the surface 342 adjoining the run-off edge 326, which is composed in a stepped manner of a first horizontally running part 344 adjoining directly to the run-off edge 326 and a second vertically running part 346 adjoining directly to the horizontal part 344.In addition, the section 330 has an aperture 348 and the outlet blade 340 has a recess 350, as seen from above, with respect to a cross section of the outlet 306 (cf. FIG. 4 ).As a result, a drain opening 352 is formed by the aperture 348 and the recess 350, said drain opening being bounded by the vertical part 346, the drain blade 340 and the section 330.This outlet opening 352 has a larger cross section than the outlet opening 316, as a result of which a build-up in the fresh water container 304 is effectively prevented.The drain blade 340, defining the drain surface, slopes downwardly from the portion 332 toward the portion 330. In addition, the run-off blade 340 has a downward gradient of 10° with respect to the horizontal H starting from the discharge surface 334 in the direction toward the part 346 or to the run-off edge 326. As a result, the water emerging from the outlet opening 352 is conducted in the direction of the aperture 348 and the recess 350, with the result that it is conducted overall in the direction of a wall section 351 of the grey water container 586 away from the actuating device 546 of the grey water container 586 (cf. FIG. 6 ). The inflow of fresh water, whether directly or by spraying to the actuating device 546, is thus effectively prevented, as a result of which its calcification is prevented (cf. FIG. 1 ).As shown in FIG. 5 b, the run-off edge 326 has a vertical distance d A with respect to the run-off opening 316, which is greater by 29.8 mm than the vertical distance d U of 23.8 mm between the overflow edge 338 and the run-off opening 316.Due to the transition between the deeper part 322 and the shallower part 324 and also due to the shallower part 324 itself, the fresh water container 304 has a relatively large water surface (phase boundary surface) with respect to the fill volume of the fresh water container 304 with respect to the maximum fill level defined by the run-off edge 326. More specifically, this water surface area is about 25 cm2and the volume is about 74 ml. As a result, the evaporation is conveyed in the fresh water container 304, which has the advantage that the fresh water container 304 and subsequently the grey water container 586 are filled sequentially. This is particularly desirable if a purely hydro-mechanical functional concept exists, in which, for example, the transfer of water from one container 304 into another 586 is controlled via float valves 308 and or non-return flaps. A fill level in the fresh water container 304 that is lowered by evaporation functions as an additional delay element in the control mechanism.During operation, the fresh water in the fresh water container 304 that is too much is always supplied to the outlet opening 352 via the outlet edge 326 and exits there. The distance d A of 29.8 mm between the outlet edge 326 and the outlet opening 316 ensures that a complete safeguard against a transfer of fresh water (category 3) from the fresh water container 304 into the fresh water connection 302 of fresh water (category 1) is present.However, even in the unlikely event that the outlet opening 352 should once be blocked-which should be virtually ruled out by its relatively large-area and irregular configuration in normal operation-the overflow edge 338 still exists, via which the fresh water (category 3) located too much in the fresh water container 304 would then emerge and be transferred directly into the grey water container 586.This overflow edge 338 too has a sufficiently large distance d U to the outlet opening 316 with 23.8 mm, so that the protection of the fresh water connection 302 is ensured in any case.The fresh water connection 302 has an external thread 354 in the usual form, to which a hose, not shown, of a fresh water feed line (for example from a drinking water feed line of a household) can be connected. For better feeding of the hose to the fresh water connection and also as an overflow protection, a protection channel 356 is provided.The actuating means 308 comprises, as a float valve, in the usual manner a valve 358 which is coupled via a lever mechanism 360 to a float 362 which is located in the grey water container 586.When the floating body 362 has dropped to a predetermined level in the grey water container 586, the valve 358 is opened and fresh water is supplied from the fresh water connection 302 through the outlet opening 316 to the fresh water container 304, from where, after the fill level height has been exceeded, it is conducted via the outlet edge 326, the surface 342 and the outlet chute 340 through the outlet opening 352 into the grey water container 586.In addition, there is a container 364 which is designed as a trough which is open towards the top. This trough 364 has a control bore 366 in which is located a vertically movable non-return flap 368 which blocks the inflow of liquid into the container 364 through the control bore 366.The floating body 362 is designed, for example, as a trough which is open toward the bottom. It is arranged in the container 364 and at the same time is mounted displaceably on a vertically extending post 370 of the actuating means 308.An inlet edge 372 surrounding the top of the container 364 is arranged at a level which lies below the maximum fill level of the grey water container 586. This maximum fill level of the grey water container 586 is defined by an overflow 548 of the actuating device 546 of the grey water container 586.As a result, the grey water located in the grey water container 586 flows into the container 364 only when the level of the filling edge 372 is exceeded by the latter. The inflow through the control bore 366 is, on the other hand, prevented by the non-return flap 368.As a result, the container 364 can only be filled from above and filling by fresh water from the fresh water container 304 is prevented by a cover 374 which completely shields the upper opening 376 of the container 364 and which is supported on the container 364.The speed of the outflow of grey water from the container 364 is predetermined by the control bore 366, which is dimensioned such that a time period of 15 s exists between a raised position of the floating body 362, which switches off the valve 358, and a position of the floating body 362, which is lowered to such an extent in the container 364 that the valve 358 is opened.More specifically, during operation, with a completely filled gray water container 586 and the actuation of the actuation device 546 of the gray water container 586, the gray water container 586 will empty, whereby the fill level in the gray water container 586 decreases successively.By contrast, the control opening 366 prevents the quick outflow of grey water from the container 364, as a result of which it flows out of the container 364 only slowly and therefore the floating body 362 falls less quickly than the fill level in the grey water container 586 falls. In this way, a time of 15 s will elapse between the complete emptying of the grey water container 586 and the switching of the valve 358.As a result, during operation of the device 500 for gray water storage or of the system 700 for gray water use, there is sufficient time for the supply of gray water into the gray water container 586 before fresh water is supplied to the gray water container 586 by the device 300 for supplying fresh water according to the invention. If gray water is sufficiently present in a gray water generator 12, this gray water is thus always transferred first into the gray water container 586, so that optimum use of the gray water produced and at the same time maximum saving of fresh water can take place.If, on the other hand, grey water is supplied again to a emptied grey water container 586, the floating body 362 leads in its lowered switching position until the grey water passes over the inlet edge 372.This results in the gray water container 586 being filled with fresh water at a maximum and constant speed. After the gray water has passed into the container 364, the floating body 362 is raised very quickly because of the small volume of the container 364. As a result, the time period between complete opening of the valve 358 and closing of the valve 358 is shortened to the maximum, whereby the process of filling the grey water container 586 with fresh water is not only minimized, but also the noise development associated therewith is significantly reduced.As an alternative to the float valve 308 described here, a solenoid valve (not shown) could also be used, for example, which is coupled to a fill level sensor (not shown) which monitors the fill level in the grey water container 586. If the intention is to enable operation of the device 500 for gray water storage or of the system 700 for gray water use as energy-free as possible, the use of the float valve 308 is preferred.The system 700 according to the invention for gray water use comprises, corresponding to FIGS. 18 a, 18 band 19, a gray water generator 12 in the form of a wash basin and a final gray water collector 702 in the form of a toilet, the device 10 according to the invention for supplying gray water from the gray water generator 12 to the device 500 according to the invention for gray water storage, the device 300 according to the invention for supplying fresh water and the device 500 according to the invention for gray water storage.It will be appreciated that the gray water use system 700 includes a front wall installation 704 to which both the washbasin 12 and the toilet 702 are secured by the sub-frame 706.The auxiliary frame 706 has a facing 708, the toilet 702 comprises a cover 710 and the device 500 for gray water storage is surrounded by a shell 712.Part of the cladding 708 is a cover 714 in the region of the jacket 712 and a cover 716 in the region of the toilet 702.On the front wall installation 704, the fresh water inlet 718 for the washbasin 12 is arranged in the usual manner, which fresh water inlet can be regulated by means of a corresponding fitting 720. Furthermore, there is an outlet 722 for the grey water coming from the washbasin 12 at the front wall installation 704, which outlet is not used further in the system 700 for grey water use. Finally, a fresh water feed (not shown) is arranged on the front wall installation, which is connected on the one hand to the fitting 720 and on the other hand to the device 300 for fresh water feed, and an outlet 724 for the toilet 702.The gray water storage device 500 has a flushing bow 502 which is connected to the flushing supply (not shown) of the toilet 702. The cover 714 has a central aperture 717 for passing through this scavenging bend 502.Both the gray water storage device 500 and the sheath 712 are attached to the cover 714.Operating elements 590 are provided for operating the flushing valve 546 of the device 500 for storing grey water.The device 500 for gray water storage has, in accordance with FIGS. 1-3 and 14-21, a housing 504, in which a first insert 506 and a second insert 508 in the form of the device 300 according to the invention for supplying fresh water are arranged. In this case, FIG. 18 bshows the section in the vertical plane A-A according to FIG. 18 a, FIG. 18 cshows the section in the vertical plane B-B according to FIG. 18 a, FIG. 19 bshows the section in the vertical plane C-C according to FIG. 19 a, and FIG. 19 cshows the section in the vertical plane D-D according to FIG. 19 a.The housing 504 has supports 510, on which the inserts 506, 508 can be placed and screwed through corresponding openings 512 which are arranged on projections 514 of the inserts 506, 508 (cf. FIG. 14 ).The inserts 506, 508 are dimensioned such that there is no other contact between the inserts 506, 508 and the housing 504 or the inserts 506, 508 with one another at the upper portions of the housing 504 and the inserts 506, 508 with respect to the vertical V, except at the transition between supports 510 and projections 514. Instead, both with respect to the vertical V and also with respect to the horizontal H, there is a spacing 515 in each case which is formed as an air gap.Liquid which is located in the first insert 506 and the vertical wall 516 of which creeps up on the inside is therefore deflected at the upper edge 518 and creeps down again on the outside at the wall 516, from where it reaches the inner side of the base 520 of the housing 504 and thus into the housing 504.Liquid located in the housing 504 cannot reach the fresh water container 304 due to the spacing 515 of the second insert 508 from the inside of the vertical wall 522 of the housing 504.This effectively prevents gray water from overflowing into the fresh water container 304 as a result of creep.In the region of the second insert 508, the housing 504 has a lateral recess 526, as a result of which a large part of the second insert 508 is located outside the vertical wall 522 of the housing 504.Furthermore, the housing 504 has feet 528, which end at the bottom in support points 530, for example in the form of pins, which have openings 532. This allows the housing 504 to be fixed to the cover 714.As best seen in Figures 18b and 18c, the housing has a central overflow 534 which has an upper overflow edge 536, an overflow tube 538 and an overflow port 540. The overflow connection 540 is connected in the usual manner to the outlet 722 by the recess 717.The housing 504 has a depression 542, at the lowest point of which there is an opening 544, in which a flushing valve 546 with an overflow 548 is arranged, which flushing valve is known to the person skilled in the art. This purge valve 546 is not shown in FIGS. 15-17 for clarity and is not fully shown in FIG. 14.The housing 504 has at its bottom 520 two channels 550, 552 which open at the top and open laterally into the depression 542. Starting from the first channel 550, a vertically rising wall 554 adjoins within the depression, which wall, together with the inner bottom surface 556 and the inner side surface 558, forms a grey water guide channel 560, which extends around the flushing valve 546 at an azimuthal angle in the range between 60° and 360°, in this case specifically approximately 180°, as can best be seen in FIG. 20. The wall 554 could be configured to be telescopic in order to be able to set the delay time (not shown).This grey water guide channel 560 is shown only in FIG. 20 for the sake of clarity.The direct inflow of liquid from the two channels 550, 552 to the base valve 546 is thus prevented in the region of the grey water guide channel 560 and the liquid can therefore flow directly to the flushing valve 546 only after passing through the grey water guide channel 560 and reaching the inflow region 562.It can also be seen that the inner side surface 558 has a bulge 563 in the region of the washer fluid 502 which, together with the wall 554, causes a constriction 564 in the grey water guide channel.During the flushing process itself, the first delay means 560 prevent grey water from the first container 506 from passing too early into the second container 586 during the flushing process and from being flushed away there. Instead, grey water entering the second container 586 accordingly from the first container 506 is held in the grey water guide channel 560 by the hydrostatic pressure and does not reach the opening 544 in appreciable amounts.The constriction 564 brings about an almost complete holding of the grey water, wherein the grey water channel 560 can nevertheless be emptied at the same time during the flushing process. Alternatively to such a constriction in the form of the constriction 564, however, the gray water guide channel can also be formed with a closure in the flow direction. Alternatively, the wall 554 could bear directly against the bulge 563 and thus bring about a closure of the grey water guide channel 560, wherein a residual quantity would then remain in the grey water guide channel 560 during the flushing process.The first insert 506 forms a first container ("intermediate storage container") of the device 500 for storing grey water. In addition to its outer wall 516, it also has an inner wall 566 which together with a wall section 516 aof the outer wall 516 forms a first region 568 of the first container 506 around the overflow 534.This first region 568 is bounded at its underside by the bottom 570 of the insert 506. The bottom 570 has an opening 572 through which the overflow 534 is guided, wherein a seal, not shown, in the form of a sealing ring can exist between the overflow pipe 538 and the opening 572, so that no liquid can pass out of the first region 568, down the overflow pipe 538 into the housing 504.The upper edge of the inner wall 566, which upper edge is configured as an overflow edge 574, has such a vertical height above the bottom 570 that a liquid volume of 1.5 L to 2 L can be captured in the first region 568 before the liquid located in the first region 568 passes via the overflow edge 574 into the second region 576, which is formed between the inner wall 566 and the wall section 516 bin conjunction with the bottom 570.The volume of 1.5 L to 2 L covered in the first region 568 corresponds to the amount of liquid according to experience, which arises in the washbasin 12 in the case of an average hand wash.The wall sections 516 a, 516 bextend with their upper edge 518 2 cm to 10 cm vertically beyond the overflow edge 536 (cf. FIGS. 16, 17 ) and the overflow edge 536 extends 1 cm to 5 cm vertically beyond the inner wall 566.As a result, liquid which is supplied to the first region 568 by the device 10 for supplying grey water will first fill this first region 568 completely before the liquid located in the first region 568 passes over the overflow edge 574 into the second region 576 of the first container 506. The outflow of liquid into the overflow 534 will only occur if the liquid level in the first container 506 is higher than the overflow edge 536.Both in the first region 568 and in the second region 576 are openings 578, 580 (see FIGS. 15 and 19 ) that are arranged above the channels 550 and 552, respectively (see FIG. 15 ). In the openings 578, 580 check valves 582, 584 are arranged, which keep the openings 578, 580 open in the direction of the channels 550, 552, but block from the channels 550, 552 into the areas 568 and 576, respectively.In the region of the depression 542, a volume forming the second container ("wash container") 586 is delimited by the vertical wall 522 of the housing 504, the wall section 516 aand the bottom surface 556 of the depression 542.A seal (not shown) may exist between the bottom 570 of the insert 506 and the bottom 520 of the housing 504, which ensures that grey water can be supplied to the depression 542 and thus to the second container 586 only from the openings 578, 580 via the channels 550, 552.The openings 578, 580 together with the check valves 582, 584, the channels 550, 552 and the grey water guiding channel form the interface for the fluid communication of the first container 506 with the second container 586.The bottom 570a in the first region 568 is 4 cm to 8 cm deeper than the bottom 570b in the second region 576 and the bottom 570a is 4 cm to 8 cm higher than the recess 542.In addition, the vertical height of the first region 568 is relatively high 10 cm to 20 cm compared to the representative circle-equivalent diameter for the volume of the first container 506 of 1.5 L to 2 L, such that there is a sufficiently high gravity pressure for the liquid located in the first region 568 to pass into the second container 586 having the depression 542.The delimitation of the first region 568 from the second region 576 ensures a steady filling of the second container 586 with a maximum amount of grey water, because grey water is reliably transferred from the first region 568 into the second container 586 even in the case of a low level of grey water present in the first container 506.The second region 576 holds a quantity of fluid of 2.8 L, whereby the first container 506 has a total volume of 4.5 L. The second container 586 likewise holds an amount of 4.5 L. If the first container were to be formed larger, then a plurality of fills of the second container 586 would also be possible.The grey water is easily filled into the second container 586 up to a maximum fill level with grey water, which is defined by the vertical position of the overflow edge 536, by the further elevated position of the second region 576 above the bottom surface 556 of the second container 586. If no grey water from the wash basin 12 just drains, then a correspondingly lower fill level in the second container 586 is naturally obtained by a drop in the grey water level in the first container 506.The maximum level of fill in the second reservoir 586 is defined by the vertical location of the overflow edge 588 of the overflow 548 in the purge valve 546. This vertical position is about 4 cm higher than the vertical position of the overflow edge 536 of the central overflow 534, as a result of which it is ensured that even in the case of a high grey water volume at the washbasin 12, the excess grey water always flows off via the central overflow 534 and not through the flush sheet 502 into the toilet 702, which can lead to contamination of the toilet.The exact structure and the mode of operation of this device 500 for gray water storage can be found in the applicant's utility model application filed on even date, "Device for storing gray water", the content of which in this respect is hereby incorporated in its entirety by reference.From the above, it has been made clear that the present invention has provided a solution which makes improvements in that the supply of fresh water to a gray water container 586 is effected safely in such a way that contamination of the fresh water with gray water is effectively prevented. This is achieved in that for the fresh water supply to the grey water container 586, there is a cascade with a plurality of hydraulic jumps in the form of vertical offsets 316, 304, 326, 586. The device 300 for supplying fresh water is structurally simple and can be produced cost-effectively. Moreover, it is ensured that the supply with fresh water takes place only when it is absolutely necessary.List of reference characters10 In a preferred embodiment of the device according to the invention for supplying grey water from the grey water generator 12 to a grey water collector in the form of a grey water container 586 12 grey water generator, wash basin 300 preferred embodiment of the device according to the invention for supplying fresh water 302 fresh water connection 304 fresh water container 306 outlet 308 actuating means for actuating the fresh water connection 302, float valve 310 outlet bend 312 horizontally running section 314 vertically running section 316 outlet opening 318 perforations 320 clip connection 322 lower part of the fresh water container 304 324 flatter part of the fresh water container 304 326 outlet edge 328 side wall 329 side wall 330 first vertical section of the side wall 328 332 second vertical section of the side wall 328 334 discharge surface 338 upper edge of the discharge surface 334, overflow edge 340 outlet cut, Outlet surface 341 tear-off edge 342 surface 344 horizontal part of surface 342 346 vertical part of surface 342 348 aperture 350 recess 352 outlet opening 354 external thread 356 protective channel 358 valve 360 lever mechanism 362 floating body 364 container 366 control bore 368 non-return flap 370 posts 372 inlet edge 374 cover 376 opening of container 364 500 preferred embodiment of the device according to the invention for storing grey water in a grey water container 502 rinsing arch 504 housing, tank housing 506 first insert, first container, "intermediate storage container" 508 second insert, device 300 according to the invention for supplying fresh water 510 supports 512 openings 514 projections 515 spacing between housing 504 and inserts 506, 508 516 vertical wall 516 awall portion of wall 516 bwall portion of wall 516 518 upper edge 520 bottom of housing 504 522 vertical wall of housing 504 526 lateral recess 528 feet 530 contact point, pin 532 openings 534 central overflow 536 overflow edge 538 overflow pipe 540 overflow connection 542 depression 544 opening 546 flushing valve 548 overflow of flushing valve 546 550, 552 channels 551 wall portion of second container 586 554 vertically rising wall 556 inner bottom surface 558 inner side surface 560 grey water guide channel, first retarding means 562 inflow region of flushing valve 546 563 inward curvature of inner side surface 558 564 constriction of grey water guide channel 560 566 inner wall 568 first region of first container 506 570 bottom of insert 506 572 opening 574 overflow edge, upper edge of the inner wall 566 576 of the second region of the first container 506 578, 580 openings 582, 584 check valves 586 of the second container, "flushing container", "flushing tank" 588 overflow edge of the overflow 548 590 control elements for toilet 702 700 preferred embodiment of the system according to the invention for gray water use 702 gray water collector, Toilet 704 front wall installation 706 auxiliary frame 708 veneer 710 lid of the toilet 702 712 jacket 714 cover 716 cover 717 central opening of the cover 714 718 fresh water inlet 720 fitting of the fresh water inlet 722 outlet 724 outlet for the toilet 702 726 overflow channel from the first container 506 into the central overflow 534 728 siphon for the toilet 702 d A vertical distance between outlet edge 326 and outlet opening 316 d U distance between outlet edge 338 and outlet opening 316 H horizontal S flow direction V verticalReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 20 2025 101 371.1

[0060]

Claims

Device (300) for supplying a grey water container (586) with fresh water from a fresh water connection (302), wherein the fresh water connection (302) has an outlet opening (316), characterized in that downstream of the fresh water connection (302) in the flow direction (S) of the fresh water there is a fresh water container (304) for temporarily storing the fresh water, which is connected to the fresh water connection (302).Device (300) according to claim 1, characterised in that the fresh water connection is a drinking water connection (302) and / or that the fresh water container (304) is arranged between the fresh water connection (302) and the grey water container (586) and / or that one or more hydraulic jumps (316, 304, 326, 586) exist downstream of the fresh water connection (302) in the flow direction (S) of the fresh water, wherein vertical offsets (316, 304, 326, 586) of the fresh water flow preferably exist in the jumps, and / or that the fresh water container (304) and the grey water container (586) each have their own container walls (328, 329, 522) which are arranged at least in regions at a distance from one another (515), wherein an air gap (515) preferably exists between the container walls (328, 329, 522), and / or that a wall (328, 329), which prevents fresh water from being able to pass from the fresh water connection (302) into the grey water container (586) by bypassing the fresh water container (304), and / or that the grey water container (586) and the fresh water container (304) are connected to one another, preferably are arranged in a common housing (504), and / or that the fresh water container (304) has a volume in the range from 10 ml to 300 ml, preferably in the range from 40 ml to 200 ml, in particular in the range from 60 ml to 80 ml, with respect to a maximum fill level of the fresh water, and / or that the grey water container (586) is intended for flushing a sanitary object (702), preferably a toilet (702), a urinal or the like, and / or that the fresh water container (304) has a free water surface area of at least 5 cm2to cm2, preferably from at least 10 cm2to 80 cm2and in particular from at least 20 cm2to 50 cm2.Device (10) according to claim 1 or 2, characterised in that the outlet opening (316) points vertically downwards onto a water surface in the fresh water container (304), wherein the outlet opening (316) is preferably arranged on an outlet bend (310), wherein the outlet bend (310) is in particular an outlet bend (310) bent through 90° in a vertical plane, and / or that the outlet opening (316) is arranged at least 5 mm, preferably at least 10 mm, in particular at least 20 mm above a maximum fill level height of the fresh water container (304).Device (10) according to one of the preceding claims, characterized in that the fresh water container (304) has a drain (306) with a vertically upper drain edge (326) and a vertically lower break-off edge (341), wherein the fresh water can be supplied to the grey water container via the drain (306).Device (10) according to claim 4, characterised in that the run-off edge (326) is preferably arranged at least 5 mm, preferably at least 10 mm, further preferably at least 20 mm, in particular at least 29 mm below the outlet opening (316) and / or that the break-off edge (341) is located at a distance vertically above a maximum fill level of the grey water container (304) of at least 5 mm, preferably at least 10 mm, in particular at least 20 mm and / or that the run-off edge (326) is located at a distance vertically above a maximum fill level of the grey water container (304) of at least 5 mm, preferably at least 10 mm, in particular at least 20 mm, and / or that a passage area of the run-off (306) of the fresh water container (304) is of the same size or greater than a passage area of the outlet opening (316).Device (300) according to claim 4 or 5, characterised in that a run-off surface (340) is arranged between run-off edge (326) and break-off edge (341), wherein the run-off surface (340) preferably has a) a vertical length in the range from 1 cm to 10 cm, preferably in the range from 3 cm to 7 cm and in particular of 5 cm and / or b) a horizontal width in the range from 1 cm to 7 cm, preferably in the range from 2 cm to 5 cm and in particular of 3 cm and / or c) an inclination with respect to the horizontal (H) in the range from 2° to 80°, preferably in the range from 4° to 60°, further preferably in the range from 6° to 40° and in particular of 10° and / or d) is designed such that it deflects the flow in the run-off (306) back in the direction of the fresh water container (304).Device (300) according to one of claims 4 to 6, characterised in that the outlet surface (340) according to claim 6 and / or the outlet edge (326) and / or the tear-off edge (341) is arranged between a receiving volume of the fresh water container (304) for the fresh water and a discharge surface (334), wherein the discharge surface (334) preferably extends vertically and / or f) has a vertical length in the range from 0.5 cm to 5 cm, preferably in the range from 1 cm to 3 cm, in particular from 2 cm and / or g) has a horizontal width in the range from 1 cm to 10 cm, preferably in the range from 2 cm to 7 cm, in particular from 5 cm and / or h) is part of a discharge channel (330, 332, 334, 346).Device (300) according to one of the preceding claims, characterized in that an overflow (338) for protecting the outlet (306) against blockage exists, wherein the overflow (338) preferably has an overflow edge (338) which is arranged at least 5 mm, preferably at least 10 mm, further preferably at least 20 mm, in particular at least 23 mm below the outlet opening (316), and / or j) opens into the grey water container (586).Device (300) according to claim 8 in combination with claim 7, characterised in that the overflow edge (338) is arranged on the discharge surface (334), preferably as the upper end (338) of the discharge surface (334).Device (300) according to one of the preceding claims, characterized in that, for opening the fresh water connection (302), an actuating means (358) preferably in the form of a float valve (358) or a solenoid valve with a fill level sensor, which is in contact with the fill level of the grey water container (586), wherein the actuating means (358) has, in particular, delay means (364, 366).Device (300) according to claim 10, characterised in that the delay means (364, 366) comprises a container (364) in which a control bore (366) exists, wherein the container (364) preferably has a non-return flap (368) which blocks the inflow of liquid into the container (364) through the control bore (366), wherein the container (364) in particular has a cover (374) in order to prevent the direct penetration of fresh water from the fresh water container (304), and / or in that the delay means (364, 366) have a time delay between a drop in a fill level in the grey water container (586) and the supply of fresh water into the fresh water container (304) in the range 0 s to 30 s, preferably of 5 s to 20 s, in particular of 15 s and / or that the delay time of the delay means (364, 366) is greater than the time required for establishing a desired level of grey water in the grey water container (586).System (700) for grey water use, comprising the device (300) according to any one of claims 1 to 11, wherein additionally a grey water generator (12) and / or a grey water collector (500, 702) consist.System (700) according to Claim 12, characterized in that the system (700) comprises a device (500) for storing grey water in a grey water container (506, 586), wherein the device (300) according to one of Claims 1 to 11 is formed with a wall (328, 329) which has a spacing (515) from the grey water container (586) at least in regions, wherein the spacing is formed in particular as an air gap (515), and / or in that the system (700) comprises a device (10) for feeding grey water from a grey water generator (12) to a grey water collector (500, 702).

Images