Device for spraying liquid and cooling arrangement for cooling at least one area

Abstract

The invention relates to a device for spraying liquid with features of claim 1, a cooling arrangement for cooling at least one region with such a device and a use of such a device or such a cooling arrangement.

Description

The invention relates to a device for spraying liquid with features of claim 1, to a cooling arrangement for cooling at least one region with features of claim 7 and to a use of such a device or such a cooling arrangement with features of claim 9.The temperatures in cities can rise extremely, especially during summer months, and become a serious threat. One possibility for proceeding against the high temperatures may be water cooling, i.e. cooling by water. In this case, the cooling effect of the water, in particular during evaporation, can be exploited. At high temperatures and / or in the case of large water reservoirs, an acute risk due to thermophilic germs and / or bacteria, such as, for example, can be present in the cooling water. Legionella.It is an object of the present invention to provide an apparatus for spraying liquid, a cooling arrangement for cooling at least one region and a use of such an apparatus or such a cooling arrangement, wherein the above disadvantages are eliminated.The above object is achieved by a device for spraying liquid having the features of claim 1. The liquid may be water. The electrocatalyst is in particular configured for purifying the liquid by means of rimocatalysis. The electrocatalyst may be formed as an oxidation catalyst. The device also comprises a current and / or voltage connection for supplying the electrocatalyst with electric current and / or electric voltage. The device comprises a liquid connection for introducing the liquid into the device, wherein the liquid flows through the device and in particular also through the electrocatalyst, and a nozzle for spraying the liquid from the device. The nozzle may be configured to distribute the liquid outside the device.The device may have a footprint of 0.25 m 2( square meters) to 1 m 2. The device may have a height of 1.5 m (meters) to 2 m. The device can thus be set up in a space-saving manner, wherein the nozzle can be arranged at an optimum height (for a person of normal size).As a result, water cooling can be implemented with a suitable hygiene and efficiency concept. The device can minimize or optimize the liquid consumption, in particular by spraying by means of the nozzle. Sprayed liquid, in particular water, can achieve an optimum cooling effect with simultaneously maximum liquid saving. In addition, the electrocatalyst or the rimocatalysis can be used to risk caused by pathogenic thermophilic germs and / or bacteria, such as, for example. Legionella, Belicht or at least minimized. Furthermore, a possible biofilm which could otherwise lead to a blockage in the case of a nozzle can be prevented or at least reduced. A cleaning and / or maintenance effort associated with such a blockage can be prevented or at least reduced.In particular, no silver ions are utilized in the electrocatalyst. Thus, the liquid can be kept disinfectant-free and free of heavy metals. This is environmentally friendly and durable. Instead, the oxidizing power of silver can be utilized. The electrocatalyst may comprise silver, in particular Ag 0 / Ag +- contacts. The Ag 0 / Ag +- contacts can be reacted by partial silver oxidation at a surface at the atomic level. The Ag 0 / Ag +- contacts can be understood as micro electrodes. These can be supplied with electrons by an applied electric voltage, which can serve as oxidizing agents. The electrocatalyst may comprise a plurality of micro-electrodes of silver. The micro electrodes can serve as a dosing unit for the electrons of the electrocatalytic process of the electrocatalyst. The micro-electrodes, in particular made of silver, can simultaneously function as catalyst and electrode.By means of the electrocatalyst, cleaning of the liquid can be implemented by oxidation by means of electrons from the electrical power grid. In this case, electric current serves as a good oxidizing agent. When using solar power, this is environmentally friendly and durable. By means of the electrocatalyst, a purification, in particular disinfection, of the liquid can be implemented without using chemical methods or methods based on hard radiation. In particular, the electro-catalytic properties of the electrocatalyst may provide a medium that prevents seed growth and thus the formation of biofilm. A liquid purified by means of the electrocatalyst is especially hygienic and harmless.By using the electrocatalyst, a load due to disinfection byproducts, in particular to an unavoidable technical amount, can be reduced. Long service lives and a low maintenance outlay of the device can be achieved. For the mode of action of the electrocatalyst, only electric current and / or electric voltage and naturally occurring oxygen, which in particular has an action accelerating the reaction, are required ( rimocatalysis). By means of the electrocatalyst, effective protection against legionella and other pathogenic microorganisms, such as, for example, multi-resistant microorganisms from poultry breeding (salmonella) and / or pseudomonads, can be achieved.According to a further development of the device, the device can comprise a first filter for filtering the liquid. The first filter can be designed as a membrane filter. The first filter may be disposed after the electrocatalyst. The first filter may be downstream of the electrocatalyst.As a result, the degree of cleaning of the liquid can be further increased with simple means.According to a further development of the device, the device can comprise a second filter for filtering the liquid. The second filter may be arranged in front of the liquid connection. The second filter can serve in particular for (coarse) prefiltering of the liquid before it is introduced into the electrocatalyst.As a result, the liquid can be prefiltered and / or the degree of cleaning of the liquid can be further increased with simple means.According to a further development of the device, the device can comprise a pump for conveying the liquid. In particular, the pressure at which the liquid is sprayed from the nozzle can be adjusted as desired by means of the pump.As a result, the liquid can be conveyed and in particular sprayed (at a desired pressure) from the nozzle with simple means.According to a further development of the device, the device can comprise a cooling device for cooling the liquid. The cooling device can comprise a Peltier element or be designed as a Peltier element.This allows the liquid to be cooled with simple means and thus the overall cooling effect of the device to be further improved.According to a development of the device, the device can comprise a photovoltaic system. The photovoltaic system can be designed to supply the electrocatalyst, the pump and / or the cooling device with electric current and / or electric voltage. The photovoltaic system can comprise a battery or a rechargeable battery for temporarily storing the electrical energy.As a result, the electrocatalyst, the pump and / or the cooling device can be supplied with electrical current and / or electrical voltage using simple means and / or independently of a (grid-linked) current / voltage connection.The above object is further achieved by a cooling arrangement for cooling at least one region (spatial region) having the features of claim 7. The cooling arrangement comprises at least one device as described above. The cooling arrangement is configured such that the liquid sprayed from the device by means of the nozzle is injected at least in regions into the region.With regard to the advantages which can be achieved thereby, reference is made to the relevant explanations relating to the device. For a further configuration of the cooling arrangement, the measures described in connection with the device and / or the measures explained below can be used.According to a development of the cooling arrangement, the cooling arrangement can comprise a plurality of devices. The devices may be offset from each other on each of two opposite sides of the region.As a result, the largest possible area can be cooled with the smallest possible devices. The devices can thus be used as efficiently as possible.The above object is achieved by using a device according to the above explanations and / or a cooling arrangement according to the above explanations for cooling at least one region having the features of claim 9. The area is designed as an area that can be walked on by a person. The area can be formed as a (walk) path or a road. The area can likewise be designed at least in regions as a parking lot, a freeway, a stop, a station, a stage, a town hall, a sport field and / or a similar, in particular urban, device.With regard to the advantages which can be achieved thereby, reference is made to the relevant explanations relating to the device and / or to the cooling arrangement. For a further embodiment of the use, the measures described in connection with the device and / or with the cooling arrangement and / or the measures explained below can serve.According to a further development of the use, the device or the cooling arrangement can be integrated into a drinking well. In other words, the device or the cooling arrangement can be used in a drinking well.In this way, a (already present) drinking well can be upgraded with simple means. The water from the drinking well can serve as liquid for the device or the cooling arrangement. The drinking well can thus be supplemented by an efficient and thus water-saving cooling function.Further features, details and advantages of the invention are evident from the wording of the claims and from the following description of exemplary embodiments on the basis of the drawings. The following are shown: FIG. 1 shows a schematic illustration of a device for spraying liquid according to a first exemplary embodiment; FIG. 2 shows a schematic illustration of the device for spraying liquid according to a second exemplary embodiment; FIG. 3 shows a schematic illustration of a cooling arrangement for cooling at least one region according to a first exemplary embodiment; and FIG. 4 shows a schematic illustration of the cooling arrangement for cooling at least one region according to a second exemplary embodiment.In the following description and in the figures, corresponding components and elements bear the same reference numerals.FIG. 1 shows a schematic illustration of a device 10 for spraying liquid according to a first exemplary embodiment. The liquid may be water.The device 10 comprises an electrocatalyst 12 for purifying the liquid. The device 10 comprises a current and / or voltage connection 14 for supplying the electrocatalyst 12 with electrical current and / or electrical voltage. The device 10 comprises a liquid connection 16 for introducing the liquid into the device 10 and a nozzle 18 for spraying the liquid from the device 10.The device 10 comprises a first filter 20 for filtering the liquid. The first filter 20 is arranged downstream of the electrocatalyst 12 in the present case. The first filter 20 can be designed as a membrane filter. Thus, the liquid can be filtered by means of the first filter 20 before it reaches the nozzle 18 and is sprayed from the device 10 by means of the nozzle 18.The apparatus 10 may include a second filter 22 for filtering the liquid. The second filter 22 is arranged in front of the liquid connection 16. The second filter 22 serves in particular for (coarse) prefiltering of the liquid.The device 10 comprises a pump 24 for conveying the liquid. In other words, the liquid is pumped through the device 10 and conveyed out of the nozzle 18, in particular by means of the pump 24. In addition, a pressure required or desired for spraying can be built up (or set) by means of the pump 24.In the present case, a path of the liquid is illustrated by means of thick arrows. The paths of the electric current and / or of the electric voltage or corresponding electric lines are illustrated in the present case by means of thin arrows.In the present case, the current and / or voltage connection 14 supplies the electrocatalyst 12 and the pump 24.FIG. 2 shows a schematic illustration of the device 10 for spraying liquid according to a second exemplary embodiment. The second embodiment differs from the first embodiment shown in FIG. 1 in the following:The device 10 in the present case has two electrocatalysts 12. A first electrocatalyst 12 is disposed between the liquid port 16 and the first filter 20. In this way, in particular, a protection of the first filter 20 by the first electrocatalyst 12 can be implemented.A second electrocatalyst 12 is arranged in front of the nozzle 18 or integrated into the nozzle 18. In this way, in particular, a protection of the nozzle 18 (for example against blocking) by the second electrocatalyst 12 can be implemented.The liquid is thus purified or filtered at two separate points by means of the respective electrocatalyst 12. Thus, one of the two electrocatalysts 12 can each assume a police filter function.The pump 24 is arranged between the first filter 20 and the second electrocatalyst 12. By means of the pump 24, a desired liquid pressure can be set, in particular, in the second electrocatalyst 12 and / or the nozzle 18.The device 10 comprises a cooling device 26 for cooling the liquid. The cooling device 26 can comprise a Peltier element or be designed as a Peltier element.The apparatus 10 comprises a photovoltaic system 28 in the present case. the photovoltaic system 28 is designed in the present case to supply the two electrocatalysts 12, the pump 24 and the cooling device 26 with electric current and / or electric voltage. The photovoltaic system 28 may include a battery (not shown) for temporarily storing the electrical energy.Here too, analogously to FIG. 1, a path of the liquid is illustrated by means of thick arrows. The paths of the electric current and / or of the electric voltage or corresponding electric lines are illustrated in the present case by means of thin arrows.In the present case, the current and / or voltage connection 14 supplies the two electrocatalysts 12, the pump 24 and the cooling device 26.It is likewise conceivable that the device 10 can be connected to a (public) electric power / voltage network in addition to the photovoltaic installation 28. In other words, the current and / or voltage connection 14 can be electrically connected to a (public) electrical current / voltage network in addition to the electrical connection to the photovoltaic installation 28.FIG. 3 shows a schematic illustration of a cooling arrangement 30 for cooling at least one region 32 according to a first exemplary embodiment.The cooling arrangement 30 comprises four devices 10 as described above. The devices 10 can be the devices 10 shown in FIG. 1 and / or the devices 10 shown in FIG. 2. The cooling arrangement 30 is configured such that the liquid sprayed from the device 10 by means of the respective nozzle 18 is injected at least in regions into the region 32.In the present case, the liquid sprayed from the devices 10 by means of the respective nozzle 18 is in each case represented as a cooling region 34. The respective cooling regions 34 and the region 32 (to be cooled) overlap accordingly.In the present case, the devices 10 are arranged offset from one another on respectively two opposite sides of the region 32. Thus, as large an overlap as possible between the cooling regions 34 of the devices 10 and the region 32 can be implemented. The region 32 can thus be optimally cooled.FIG. 4 shows a schematic illustration of the cooling arrangement 30 for cooling at least one region 32 according to a second exemplary embodiment. The second embodiment differs from the first embodiment shown in FIG. 3 in the following:The cooling arrangement 30 comprises in the present case eight devices 10 which cool two regions 32. The two regions 32 can be arranged spaced apart from one another. In the present case, two of the eight devices 10 are arranged between the two regions 32 in such a way that their cooling regions 34 overlap the two regions 32. In other words, the two devices 10 arranged (centrally in FIG. 4 ) between the two regions 32 cool both regions 32.In the present case, three of the devices 10 are arranged in each case in such a way that their cooling regions 34 are arranged overlapping only one of the two regions 32. Each of the two regions 32 thus has as large an overlap as possible with the cooling regions 34 of the eight devices 10, so that the two regions 32 can be optimally cooled.In the following, a use of the device 10 according to the above explanations or of the cooling arrangement 30 according to the above explanations for cooling at least one region 32 is described. The device 10 can be a device 10 shown in FIG. 1 or 2. The cooling arrangement 30 may be a cooling arrangement shown in FIG. 3 or 4.The area 32 is an area that can be walked on by a person. The region 32 is in particular formed as a path or road. The area 32 may be an area where a person can stay.Thus, the device 10 or cooling arrangement 30 can be used for cooling, for example, urban areas, paths, roads and the like.The device 10 or cooling arrangement 30 may be used in a drinking well. In other words, the device 10 or the cooling arrangement 30 can be integrated in a drinking well. Thus, for example, an already existing drinking well can be upgraded or upgraded with the device 10 or the cooling arrangement 30.

Claims

Device (10) for spraying liquid, in particular water, comprising: - at least one electrocatalyst (12) for purifying the liquid, - a current and / or voltage connection (14) for supplying the electrocatalyst (12) with electric current and / or electric voltage, - a liquid connection (16) for introducing the liquid into the device (10), and - a nozzle (18) for spraying the liquid from the device (10).Device (10) according to claim 1, characterised in that the device (10) comprises a first filter (20) for filtering the liquid, wherein the first filter (20) is designed as a membrane filter, wherein the first filter (20) is arranged after the electrocatalyst (12).Device (10) according to either of Claims 1 and 2, characterized in that the device (10) comprises a second filter (22) for filtering the liquid, the second filter (22) being arranged upstream of the liquid connection (16).Device (10) according to one of the preceding claims, characterized in that the device (10) comprises a pump (24) for conveying the liquid.Device (10) according to one of the preceding claims, characterized in that the device (10) comprises a cooling device (26), in particular a Peltier element, for cooling the liquid.Device (10) according to one of the preceding claims, characterized in that the device (10) comprises a photovoltaic installation (28), wherein the photovoltaic installation (28) is designed to supply the electrocatalyst (12), the pump (24) and / or the cooling device (26) with electric current and / or electric voltage.Cooling arrangement (30) for cooling at least one region (32) comprising at least one device (10) according to one of the preceding claims, wherein the cooling arrangement (30) is configured such that the liquid sprayed from the device (10) by means of the nozzle (18) is sprayed at least in regions into the region (32).Cooling arrangement (30) according to claim 7, characterised in that the cooling arrangement (30) comprises a plurality of devices (10), wherein the devices (10) are arranged offset with respect to one another on respectively two opposite sides of the region (32).Use of a device (10) according to one of Claims 1 to 6 or of a cooling arrangement (30) according to Claim 7 or 8, for cooling at least one region (32), wherein the region (32) is designed as a region which can be walked on by a person, in particular as a path.Use according to claim 9, characterised in that the device (10) or the cooling arrangement (30) is integrated into a drinking well.

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