DE202022102005U1 - Device for purifying water and system for purifying water - Google Patents

Abstract

Device (10) for cleaning water, for example for reducing germs and/or disinfecting biologically and/or chemically contaminated water
a cavitation device (4) which is set up to receive the water to be cleaned and to generate cavitation in the water for cleaning the same, for example for reducing germs in the same, and
a germ reduction device (5) which is in fluid communication with the cavitation device (4) upstream or downstream, for example downstream thereof and is set up to reduce a number of germs.

Description

The present invention relates to a water purification device and a water purification system.

According to Bernoulli's equation, cavitation can occur in liquids, for example, in the event of strong pressure fluctuations, high flow velocities and/or high velocities of moving parts in the liquid, such as turbine blades. According to Bernoulli's law, the higher the speed, the lower the static pressure of a liquid. If the static pressure falls below the evaporating pressure of the liquid, vapor bubbles form. These are then usually entrained with the flowing liquid in areas of higher pressure. When the static pressure rises above the vapor pressure again, the vapor in the cavities suddenly condenses and the vapor bubbles collapse. Extreme pressure and temperature peaks occur. In addition to the well-known negative properties of this vapor bubble implosion, such as the destruction of ship turbines and/or impellers in pumps, cavitation can also be used positively. It is brought about in a targeted manner in order to achieve process engineering advantages. The benefits can be changes in viscosity and/or improved mixing processes, for example. In addition, the cavitation can have a germ-inactivating and/or germ-reducing and/or germ-killing effect. Cavitation can be used, for example, in mixing, homogenizing, carbonizing, oxygen enrichment, emulsifying, calming foaming products and/or in water treatment or water purification.

In addition to conventional ultrasonic methods, cavitation can also be generated mechanically, for example. For example in EP 2 135 667 A1 describes a device which generates cavitation bubbles in the pipe by means of an extreme narrowing of the cross section and the following sharp tear-off edges, with the aim of mixing or stabilizing at least two components flowing through. In EP 2 025 392 A2 describes a device with several cavitators, in which certain product parameters can be adjusted by fluid guidance. In EP 1 784 251 B1 describes a device for the molecular integration and disintegration of solid, liquid and/or gaseous components flowing through, co-flowing and counter-flowing by means of cavitation. In DE 10 2009 034 977 A1 a cavitation reactor is described which comprises a combination of a water jet nozzle and an orifice plate with numerous microbores inserted in front of a diffuser.

It can be seen as an object of the present invention to specify a device for cleaning water with which a simple and/or efficient and/or reliable reduction of germs (in the water to be cleaned) is possible or made possible.

Alternatively or additionally, it can be seen as an object of the present invention to specify a device for cleaning water with which (over time) constant and/or stable germ reduction (in the water to be cleaned) can be achieved and/or ensured, for example in a simple and/or efficient and/or reliable manner.

Alternatively or additionally, it can be seen as an object of the present invention to specify a system for cleaning water with which simple and/or efficient and/or reliable germ reduction (in the water to be cleaned) is possible or made possible.

Alternatively or additionally, it can be seen as an object of the present invention to specify a system for cleaning water with which a constant (over time) and/or stable germ reduction (in the water to be cleaned) can be achieved and/or ensured, for example in a simple and/or efficient and/or reliable manner.

To this end, the present invention provides an apparatus for purifying water according to claim 1 and a system for purifying water according to claim 22. Further advantageous embodiments of the present invention are described in the dependent claims.

According to a first aspect of the invention, a device for cleaning water (for example for germ reduction and / or disinfection of biologically and / or chemically contaminated water) for example (at least) a cavitation device that is designed to receive the water to be cleaned and to generate cavitation in the water for purification of the same (for example for germ reduction in the same), and to have (at least) one germ reduction device which is in fluid communication with the cavitation device upstream or downstream (for example downstream) of the same and is set up to to reduce the number of germs.

Through a combination of a / the cavitation device and a / the germ reduction direction, for example, the number of germs in the water to be cleaned can be easily, efficiently and reliably reduced. In addition, the combination of a/the cavitation device and a/the germ reduction device can, for example, enable a (chronologically) constant and stable reduction in the number of germs. A/the device according to the first aspect of the invention can thus enable, for example, a reliable reduction in germs, for example a reliable reduction in germs by a value specified or specified by the legislature.

Clearly, for example, a germ reduction performance of the germ reduction device can be increased (or reduced) if it is determined that a germ reduction performance of the cavitation device is reduced (or increased), for example due to pressure fluctuations in the supplied water to be cleaned and/or changes in a flow rate of the to cleaning water through the cavitation device. Clearly, for example, particles, which can be contained in the water to be cleaned, can lead to a change (e.g. reduction) in the germ reduction performance of the cavitation device, for example because the particles can clog at least part of the cavitation device, which, for example, a flow rate of the water to be cleaned through the cavitation device can be reduced, as a result of which, for example, the germ reduction performance of the cavitation device can be reduced. It goes without saying that, for example, a germ reduction performance of the cavitation device can also be increased (or reduced) if it is determined that a germ reduction performance of the germ reduction device is reduced (or increased).

A germ reduction performance of a device can be understood within the meaning of this invention as a reduction in the number of germs when the water to be cleaned passes or flows through the corresponding device. The germ reduction performance can be determined, for example, by comparing a/the number of germs upstream of the device (or before the passage or flow of the water to be purified through the device) with a/the number of germs downstream of the device (or after the passage or flow through of the water to be cleaned by the device) is compared.

The cavitation device can be set up, for example, to receive the water to be cleaned axially and/or in the direction of flow. The cavitation device can be set up, for example, so that the water to be cleaned flows through the cavitation device axially and/or in the direction of flow. The water to be cleaned can be fed to the cavitation device, for example, axially and/or in the direction of flow. The water to be cleaned can be taken up by the cavitation device, for example, axially and/or in the direction of flow. The water to be cleaned can flow through the cavitation device, for example, axially and/or in the direction of flow.

The cavitation device can be set up, for example, to receive the water to be cleaned essentially axially. The cavitation device can be set up, for example, so that the water to be cleaned flows through the cavitation device essentially axially. The cavitation device can, for example, have a cavitation section in which the cavitation can be generated (or is generated) and through which the water to be cleaned can flow (or will flow) essentially axially and/or essentially without a change in direction. The cavitation device and/or the cavitation section can be set up, for example, so that the water to be cleaned undergoes a change in direction of at most 45°, for example at most 25°, for example at most 10°, for example essentially none, when flowing through it change of direction, experienced.

The cavitation device can be set up, for example, to take up the water to be cleaned essentially radially. The cavitation device can be set up, for example, so that the water to be cleaned flows through the cavitation device at least in sections on a spiral path. The cavitation device can be set up, for example, so that the water to be cleaned undergoes a change in direction of at least 45°, for example at least 65°, for example at least 80°, for example essentially 90°, when flowing through it.

The germ reduction device can be set up, for example, to reduce the number of germs by 80% or more, for example 85% or more, for example 90% or more, for example 95% or more, for example 99% or more, for example 99.9 % or more.

In order to determine a/the reduction in the number of germs by the germ reduction device, the procedure can be analogous to the above description, ie a/the number of germs upstream of the germ reduction device (or before the passage or flow of the water to be cleaned through the germ reduction device). with a/the number of germs downstream of the germ reduction device (or after the passing or flowing through of the water to be cleaned through the germ reduction device).

In order to determine a/the germ reduction performance of a device and/or a/the reduction in the number of germs by a/the device, for example a number (number of germs) of a suitable bacterium and/or fungus and/or virus upstream of the device (or before the passage of the water to be purified through the device) with a count of the same bacterium and/or fungus and/or virus downstream of the device (or after the passage or flow of the water to be purified through the device).

The germ reduction device can, for example, work without cavitation. The germ reduction device can, for example, have a different mode of operation than the cavitation device. The germ reduction device can bring about the germ reduction, for example, in a different way than the cavitation device. The germ reduction device can be different from the cavitation device, for example. The germ reduction device can be set up, for example, not to generate any cavitation in the water to be cleaned.

The germ reduction device can have a device for physical germ reduction, for example. The germ reduction device can, for example, have a device for germ reduction by irradiation. The germ reduction device can, for example, have a device for germ reduction by means of UV radiation. The germ reduction device can have a UV lamp, for example.

The germ reduction device can have a device for chemical germ reduction, for example. The germ reduction device can, for example, have a device for adding one or more chemical reactants (for example to the water to be cleaned, for example into the water to be cleaned). The germ reduction device can, for example, have a device that is set up to supply one or more chemical reactants to the water to be cleaned. The germ reduction device can have a device for generating H ₂ O ₂ , for example. The germ reduction device can, for example, have a device that is set up to generate hydrogen peroxide. The germ reduction device can have an electrolysis device, for example. The germ reduction device can have a device for carrying out an electrolysis, for example. The germ reduction device can, for example, have a device that is set up to carry out an electrolysis.

For example, the device may include one or more first pumps (e.g., pressure pumps) that are located upstream of the cavitation device and that are fluidly connected to the cavitation device. For example, the one or more first pumps may be configured to increase a pressure upstream of the cavitation device. For example, the one or more first pumps may be configured to increase a flow rate upstream of the cavitation device. The one or more first pumps can be set up, for example, to build up a pressure that enables cavitation to be generated in the cavitation device. For example, the one or more first pumps may be configured to establish a flow rate that enables cavitation to be generated in the cavitation device.

The device can be set up, for example, to reduce the number of germs by 90% or more, for example 95% or more, for example 99% or more, for example 99.9% or more, for example 99.99% or more, for For example 99.999% or more, for example 99.9999% or more.

In order to determine a/the reduction in the number of germs through the device, the procedure can be analogous to the above description, i.e. a/the number of germs upstream of the device (or before the passage or flow of the water to be cleaned through the device). be compared with a/the number of germs downstream of the device (or after the passage or flow of the water to be purified through the device). For example, a number (germ number) of a suitable bacterium and/or fungus and/or virus upstream of the device (or before the passage or flow of the water to be purified through the device) with a number of the same bacterium and/or fungus and /or Virus downstream of the device (or after the passage or flow of the water to be purified through the device).

The cavitation device may have, for example, a first section whose cross-section perpendicular to the direction of flow tapers when viewed in the direction of flow, and a second section which is downstream of the first section is arranged and whose cross section perpendicular to the direction of flow increases seen in the direction of flow, and wherein between the first section and the second section a diaphragm with openings (for example microbores) is arranged. The cavitation device can be used, for example, as in DE 10 2009 034 977 A1 describe, the disclosure of which is incorporated herein by this reference. The cavitation device can be used, for example, as in EP 1 784 251 B1 describe, the disclosure of which is incorporated herein by this reference.

The device may, for example, have one or more second pumps (e.g. pressure pumps) which are arranged downstream of the cavitation device (e.g. downstream of the cavitation device and the germ reduction device) and which are fluidly connected to the cavitation device (e.g. and the germ reduction device).

The one or more second pumps may be configured, for example, to increase a pressure (for example, to an outlet pressure of a fluid circuit having the device) downstream of the cavitation device (for example, downstream of the cavitation device and the germ reduction device).

For example, the device may include one or more filter devices disposed upstream of the cavitation device (e.g., and the one or more first pumps) and fluidly connected to the cavitation device (e.g., and the one or more first pumps).

For example, the one or more filter devices may be configured to trap particles that would otherwise result in clogging of the cavitation device. For example, the one or more filter devices may be configured to prevent a build-up of filter cake in the cavitation device. The one or more filter devices can, for example, have a filter material whose mesh size and/or pore size is smaller than or equal to the diameter of the openings of the screen. For example, the one or more filter devices may be disposed upstream of and fluidly connected to the one or more first pumps.

The performance of the one or more first pumps can be adjustable and/or controllable and/or adjustable, for example. The performance of the several first pumps can be tuned to one another, for example. The several first pumps can, for example, be matched to one another in terms of their performance.

For example, the device may include: a first pressure sensor disposed upstream of the cavitation device (e.g., between the one or more first pumps and the cavitation device) and configured to measure a first fluid pressure; a second pressure sensor disposed downstream of the cavitation device (e.g., between the cavitation device and the germ reduction device) and configured to measure a second fluid pressure; and a controller configured to adjust and/or control and/or regulate the one or more first pumps based on the first fluid pressure and/or a pressure difference between the first fluid pressure and the second fluid pressure.

For example, the device may comprise a bypass conduit having an inlet located upstream of the cavitation device (e.g. between the one or more first pumps and the cavitation device) and an outlet located downstream of the cavitation device (e.g between the cavitation device and the germ reduction device). For example, a bypass valve can be arranged in the bypass line, which is set up to adjust a fluid flow in the bypass line. For example, a first valve can be arranged between the cavitation device and the inlet of the bypass line, which valve is set up to adjust a fluid flow. For example, a second valve can be arranged between the cavitation device and the outlet of the bypass line, which valve is set up to adjust a fluid flow.

A performance (for example germ reduction performance) of the germ reduction device (for example the device for physical germ reduction and/or the device for chemical germ reduction) can, for example, be adjustable and/or controllable and/or regulatable.

The one or more filter devices can have, for example, at least one microfilter and/or at least one nanofilter and/or at least one osmosis filter and/or at least one osmosis device.

The performance of the one or more second pumps can be adjustable and/or controllable and/or adjustable, for example.

A performance (e.g. germ reduction performance) of the cavitation device can be adjustable and/or controllable and/or adjustable.

For example, the device may include a/the controller. For example, the controller may be configured to adjust and/or control and/or regulate the output of the one or more first pumps (for example based on the first fluid pressure and/or a pressure difference between the first fluid pressure and the second fluid pressure). The control device can be set up, for example, to set and/or control and/or regulate the output of the one or more second pumps (for example based on the output pressure of the fluid circuit having the device and/or the second fluid pressure and/or a/the pressure difference between the first and the second fluid pressure). The control device can be set up, for example, to set and/or control and/or regulate the power (for example germ reduction power) of the cavitation device (for example by setting and/or controlling and/or regulating the power of the one or more first and/or second pumps, for example based on the first fluid pressure and/or the second fluid pressure, for example based on a/the pressure difference between the first and the second fluid pressure). The control device can be set up, for example, to set and/or control and/or regulate the output (for example germ reduction output) of the germ reduction device (for example the device for physical germ reduction and/or the device for chemical germ reduction). The control device can be set up, for example, to coordinate the performance of the plurality of first pumps with one another, for example based on respective fluid pressures measured downstream of a respective first pump, which are measured, for example, by means of respective pressure sensors arranged downstream of a respective first pump.

According to a second aspect of the invention, a system for cleaning water can, for example, comprise a/the device according to the first aspect of the invention and a storage tank which is adapted to receive the water to be cleaned, from which the water to be cleaned can be supplied to the device and to which the cleaned water can be returned.

For example, the storage tank may be located upstream of the cavitation device and downstream of the one or more second pumps. For example, the reservoir may be located upstream of the one or more first pumps and downstream of the one or more second pumps. For example, the storage tank may be located upstream of the one or more first filter devices. The storage container can be arranged, for example, downstream of the germ reduction device.

According to a third aspect of the invention, a/the device according to the first aspect of the invention and/or a/the system according to the second aspect of the invention can be used, for example, to purify water (for example to reduce germs and/or disinfect biological and/or chemically contaminated water).

According to a fourth aspect of the invention, a method for cleaning water (for example for germ reduction and/or disinfection of biologically and/or chemically contaminated water) can have: providing a/the device according to the first aspect of the invention and/or a/the System according to the second aspect of the invention; Passing and/or flowing the water to be purified through the device and/or system (e.g. out of and/or into the storage tank).

According to a fifth aspect of the invention, a method for cleaning water (e.g. for germ reduction and/or disinfection of biologically and/or chemically contaminated water) can include: generating cavitation in the water to be cleaned (e.g. so that a number of germs in the same is reduced, for example for a germ reduction in the same); (additional) reducing a/the number of germs in the water to be cleaned (for example after or before cavitation has been or is being generated in the same). In order to generate cavitation in the water to be cleaned, the water to be cleaned can be conducted, for example, through a cavitation device (or flow through it), which can be set up, for example, to receive the water to be cleaned and in which water for cleaning it ( for example for a germ reduction in the same) to generate cavitation. In order to (additionally) reduce the number of germs in the water to be cleaned, the water to be cleaned can, for example, be passed through a germ reduction device (or flow through it), which can be set up, for example, to reduce the number of germs in it. Further configurations of the fifth aspect of the invention result in an analogous manner from the configurations of the first and second aspect of the invention.

• 1 zeigt ein Diagramm einer Vorrichtung zur Reinigung von Wasser gemäß einer ersten Ausführungsform der Erfindung.
• 2 zeigt ein Diagramm einer Vorrichtung zur Reinigung von Wasser gemäß einer zweiten Ausführungsform der Erfindung.
• 3 zeigt ein Diagramm einer Vorrichtung zur Reinigung von Wasser gemäß einer dritten Ausführungsform der Erfindung.
• 4 zeigt ein Diagramm einer Vorrichtung zur Reinigung von Wasser gemäß einer vierten Ausführungsform der Erfindung.
• 5 zeigt eine Schnittansicht durch eine Kavitationsvorrichtung gemäß einer fünften Ausführungsform der Erfindung.
• 6 zeigt eine Schnittansicht durch eine Kavitationsvorrichtung gemäß einer sechsten Ausführungsform der Erfindung.

Exemplary but non-limiting embodiments of the invention are explained in more detail below.

• 1 Fig. 12 shows a diagram of an apparatus for purifying water according to a first embodiment of the invention.
• 2 Fig. 12 shows a diagram of an apparatus for purifying water according to a second embodiment of the invention.
• 3 Fig. 12 shows a diagram of an apparatus for purifying water according to a third embodiment of the invention.
• 4 Fig. 12 shows a diagram of an apparatus for purifying water according to a fourth embodiment of the invention.
• 5 shows a sectional view through a cavitation device according to a fifth embodiment of the invention.
• 6 shows a sectional view through a cavitation device according to a sixth embodiment of the invention.

In the following description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced.

It is understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. It is understood that the features of the embodiments described herein can be combined with one another unless specifically stated otherwise. The following description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

As for example in the 1 until 4 shown, a device 10 for cleaning water (for example, for germ reduction and / or disinfection of biologically and / or chemically contaminated water) according to various embodiments of the invention, for example, a cavitation device 4, which is adapted to receive the water to be cleaned and to generate cavitation in the water for cleaning the same (for example for germ reduction in the same), and having a germ reduction device 5 which is connected to the cavitation device 4 upstream or downstream (for example downstream, as for example in FIGS 1 until 4 shown) of the same is in fluid connection (for example by means of a line) and is set up to reduce a germ count.

The germ reduction device 5 can be set up, for example, to reduce the number of germs by 80% or more, for example 99.9% or more. The germ reduction device 5 can, for example, work without cavitation. The germ reduction device 5 can be set up, for example, to reduce the number of germs without cavitation. The germ reduction device 5 can, for example, have a device for physical germ reduction (for example a device for germ reduction by irradiation, for example a device for germ reduction by means of UV radiation, for example a UV lamp, as for example in 1 until 4 shown). Alternatively or additionally, the germ reduction device 5 can have a device for chemical germ reduction, for example.

As for example in the 1 and 3 As shown, the device 10 may, for example, comprise one or more first pumps 3 (e.g. pressure pumps) which are arranged upstream of the cavitation device 4 and which are fluidly connected to the cavitation device 4 (e.g. by means of a pipe). For example, the one or more first pumps 3 may be configured to increase a pressure upstream of the cavitation device 4 .

The device 10 can be set up, for example, to reduce the number of germs by 90% or more, for example 99.9999% or more.

As for example in the 1 until 5 shown, the cavitation device 4 can have, for example, a first section whose cross section perpendicular to the flow direction decreases as seen in the flow direction, and a second section which is arranged downstream of the first section and whose cross section perpendicular to the flow direction increases as seen in the flow direction, and wherein a diaphragm with openings (e.g. microbores) is arranged between the first section and the second section. Alternatively, the cavitation device can, for example, as in 6 shown to be configured.

Like for example in 5 shown, the cavitation device 4 can be set up, for example, to receive the water to be cleaned essentially axially. Like for example in 5 shown, the cavitation device 4 can be set up, for example, so that the water to be cleaned flows through the cavitation device 4 essentially axially. Like for example in 5 shown, the cavitation device 4 can have, for example, a cavitation section in which the cavitation can be generated and through which the water to be cleaned flows essentially axially and/or essentially without a change in direction is cash. Like for example in 5 shown, the cavitation device 4 and/or the cavitation section can be set up, for example, so that the water to be cleaned undergoes a change in direction of at most 45°, for example at most 25°, for example at most 10°, for example essentially no change in direction.

Like for example in 6 shown, the cavitation device 4 can be set up, for example, to take up the water to be cleaned essentially radially. The cavitation device 4 can be set up, for example, so that the water to be cleaned flows through the cavitation device 4 at least in sections on a spiral path (such as, for example, the 6 cavitation device shown). Like for example in 6 shown, the cavitation device 4 can be set up, for example, so that the water to be cleaned undergoes a change in direction of at least 45°, for example at least 65°, for example at least 80°, for example essentially 90°, as it flows through it.

As for example in the 1 until 4 shown, the device 10 can have, for example, one or more second pumps 6 (for example pressure pumps) which are installed downstream of the cavitation device 4 (for example downstream of the cavitation device 4 and the germ reduction device 5, as for example in FIGS 1 until 4 shown) and which are fluidly connected to the cavitation device 4 (e.g. by means of a pipe).

The one or more second pumps 6 can be set up, for example, to increase a pressure downstream of the cavitation device 4 (for example downstream of the cavitation device 4 and the germ reduction device 5), for example to an outlet pressure of a fluid circuit 1 having the device 10.

As for example in the 1 and 3 As shown, the device 10 may, for example, comprise one or more filter devices 2 which are arranged upstream of the cavitation device 4 and which are fluidly connected to the cavitation device 4 (e.g. by means of a conduit).

The one or more filter devices 2 can be set up, for example, to separate particles that would otherwise lead to the cavitation device 4 becoming clogged. The one or more filter devices 2 can be set up, for example, to prevent a build-up of a filter cake in the cavitation device 4 . The one or more filter devices 2 can, for example, have a filter material whose mesh size and/or pore size is smaller than or equal to the diameter of the openings of the screen.

The one or more filter devices 2 can for example be arranged upstream of the one or more first pumps 3 (as for example in Figs 1 and 3 shown) and fluidly connected thereto (e.g., by means of a conduit).

The one or more first pumps 3 can, for example, be adjustable and/or controllable and/or adjustable in terms of their performance.

The device 10 may, for example, comprise a first pressure sensor arranged upstream of the cavitation device 4 (for example between the one or more first pumps 3 and the cavitation device 4) and configured to measure a first fluid pressure p2. The device 10 can, for example, have a second pressure sensor which is arranged downstream of the cavitation device 4 (for example between the cavitation device 4 and the germ reduction device 5) and is set up to measure a second fluid pressure p3. For example, the device 10 may include a controller configured to adjust and/or control the one or more first pumps 3 based on the first fluid pressure p2 and/or a pressure difference between the first fluid pressure p2 and the second fluid pressure p3 and/or to regulate.

As for example in the 1 until 4 shown, the device may comprise a bypass line, with an inlet located upstream of the cavitation device 4 (for example between the one or more first pumps 3 and the cavitation device 4, as for example in Figs 1 and 3 shown), and an outlet which is arranged downstream of the cavitation device 4 (e.g. between the cavitation device 4 and the germ reduction device 5, as for example in FIGS 1 until 4 shown). A bypass valve 16 can be arranged in the bypass line, for example, which is set up to adjust a fluid flow in the bypass line. A first valve 14, which is designed to adjust a fluid flow, can be arranged between the cavitation device 4 and the inlet of the bypass line, for example, and a second valve 14, for example, can be arranged between the cavitation device 4 and the outlet of the bypass line be arranged, which is set up to set a fluid flow. Through the bypass line and valves 14, 16 For example, a flow rate through the cavitation device 4 can be easily and reliably adjusted and/or the cavitation device 4 can be replaced in a simple and reliable manner if necessary.

A performance (for example germ reduction performance) of the germ reduction device 5 (for example the device for physical germ reduction) can be adjustable and/or controllable and/or regulatable, for example.

The one or more filter devices 2 can have, for example, at least one microfilter and/or at least one nanofilter and/or at least one osmosis filter and/or at least one osmosis device.

The one or more second pumps 6 can, for example, be adjustable and/or controllable and/or adjustable in terms of their performance.

A performance (for example germ reduction performance) of the cavitation device 4 can be adjustable and/or controllable and/or adjustable, for example.

For example, the device 10 may include a/the controller. For example, the control device may be configured to adjust and/or control and/or regulate the power of the one or more first pumps 3, for example based on the first fluid pressure p2 and/or a/the pressure difference between the first fluid pressure p2 and the second fluid pressure p3. The control device can be set up, for example, to adjust and/or control and/or regulate the output of the one or more second pumps 6, for example based on the output pressure of the fluid circuit comprising the device p4 and/or the second fluid pressure p3 and/or a/the pressure difference between the first and the second fluid pressure p2 and p3. The control device can be set up, for example, to set and/or control and/or regulate the power (e.g. germ reduction power) of the cavitation device 4, for example by setting and/or controlling and/or regulating the power of one or more first and/or second pumps 3 and/or 6, for example based on the first fluid pressure p2 and/or the second fluid pressure p3, for example based on a/the pressure difference between the first and the second fluid pressure p2 and p3. The control device can be set up, for example, to adjust and/or control and/or regulate the output (for example germ reduction output) of the germ reduction device 5 (for example the device for physical germ reduction).

As for example in the 1 until 4 shown, a system for cleaning water can have a/the above-described device 10 and a storage container 7 or 17, which is designed to receive the water to be cleaned and from which the water to be cleaned can be fed to the device 10 and in which the purified water can be traced back.

As for example in the 1 until 4 shown, the storage tank 7 or 17 can be arranged upstream of the cavitation device 4 and downstream of the one or more second pumps 6 . As for example in the 1 and 3 As shown, the storage tank 7 may be located upstream of the one or more first pumps 3 and downstream of the one or more second pumps 6 .

As for example in the 1 and 3 shown, the storage container 7 can, for example, not be pressurizable (unpressurized container). As for example in the 1 and 3 As shown, the storage container 7 can be arranged above the device 10, for example. A/the fluid pressure p1 can depend (essentially) on the height h, for example, and can change depending on the water level in the storage tank 7, for example. The fluid pressure p3 downstream of the cavitation device 4 can, for example, be smaller than the fluid pressure p2 upstream of the cavitation device 4. The fluid pressure p3 downstream of the cavitation device 4 can, for example (also) be smaller than the fluid pressure p1 upstream of the device 10. A/the fluid pressure p4 can be greater than the fluid pressure p3, for example.

As for example in the 2 and 4 shown, the storage tank 17 can be pressurized, for example (pressure tank). For example, a/the fluid pressure p1 may be (substantially) the same as the pressure in the reservoir 17. The fluid pressure p1 may for example be (substantially) the same as a/the fluid pressure p4. The fluid pressure p3 downstream of the cavitation device 4 can, for example, be lower than the fluid pressure p1 upstream of the cavitation device 4.

As for example in the 3 As shown, storage tank 7 may be fluidly connected, for example, to a fluid circuit 24, which may include, for example, a pump 22 (e.g., circulation pump), at least one fluid take-off point 20 (e.g., consumer fluid take-off point), and a cooling tower 23.

As for example in the 4 As shown, the reservoir 17 may be fluidly connected to, for example, a fluid circuit 19 that may include, for example, a pump 21 (e.g., circulation pump) and one or more fluid tapping points 20 (e.g., consumer fluid tapping points). In addition, the storage container 17 can be fluidly connected to a water make-up line 18, for example.

10

Vorrichtung;

4

Kavitationsvorrichtung;

5

Keimreduktionsvorrichtung;

2

Filtervorrichtung;

3

erste Pumpe;

6

zweite Pumpe;

16

Bypass-Ventil;

14

erstes, zweites Ventil;

p1, p2, p3, p4

Fluiddruck;

1, 19, 24

Fluidkreislauf;

12

System;

7, 17

Speicherbehälter;

h

Höhe;

18

Wassernachspeiseleitung;

20

Fluidentnahmestelle;

21, 22

Pumpe;

23

Kühlturm.

Reference list:

10

Contraption;

4

cavitation device;

5

germ reduction device;

2

filter device;

3

first pump;

6

second pump;

16

bypass valve;

14

first, second valve;

p1, p2, p3, p4

fluid pressure;

1, 19, 24

fluid circuit;

12

System;

7, 17

storage containers;

H

Height;

18

water make-up pipe;

20

fluid withdrawal point;

21, 22

Pump;

23

cooling tower.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• EP 2135667 A1 [0003]
• EP 2025392 A2 [0003]
• EP 1784251 B1 [0003, 0025]
• DE 102009034977 A1 [0003, 0025]

Claims (24)

Device (10) for cleaning water, for example for reducing germs and/or disinfecting biologically and/or chemically contaminated water a cavitation device (4) which is set up to receive the water to be cleaned and to generate cavitation in the water for cleaning the same, for example for reducing germs in the same, and a germ reduction device (5) which is in fluid communication with the cavitation device (4) upstream or downstream, for example downstream thereof and is set up to reduce a number of germs. Device (10) after claim 1 , wherein the germ reduction device (5) is set up to reduce the number of germs by 80% or more, for example 99.9% or more. Device (10) after claim 1 or 2 , wherein the germ reduction device (5) works without cavitation. Device (10) according to one of Claims 1 until 3 , wherein the germ reduction device (5) has a device for physical germ reduction, for example a device for germ reduction by irradiation, for example a device for germ reduction by means of UV radiation, for example a UV lamp, and/or wherein the germ reduction device (5) has a device for chemical germ reduction. Device (10) according to one of Claims 1 until 4 , having one or more first pumps (3), for example pressure pumps, which are arranged upstream of the cavitation device (4) and which are fluidly connected to the cavitation device (4), wherein optionally the one or more first pumps (3) are set up to do so, to increase a pressure upstream of the cavitation device (4). Device (10) according to one of Claims 1 until 5 , wherein the device (10) is set up to reduce the number of germs by 90% or more, for example 99.9999% or more. Device (10) according to one of Claims 1 until 6 , wherein the cavitation device (4) has a first section whose cross-section perpendicular to the flow direction narrows as seen in the flow direction, and a second section which is arranged downstream of the first section and whose cross-section perpendicular to the flow direction increases as seen in the flow direction, and wherein between a diaphragm with openings, for example microbores, is arranged between the first section and the second section. Device (10) according to one of Claims 1 until 7 , having one or more second pumps (6), for example pressure pumps, which are arranged downstream of the cavitation device (4), for example downstream of the cavitation device (4) and the germ reduction device (5), and which are fluidly connected to the cavitation device (4). . Device (10) after claim 8 , wherein the one or more second pumps (6) are set up to increase a pressure downstream of the cavitation device (4), for example downstream of the cavitation device (4) and the germ reduction device (5), for example to an outlet pressure of the Device (10) having a fluid circuit (1). Device (10) according to one of Claims 1 until 9 , comprising one or more filter devices (2) which are arranged upstream of the cavitation device (4) and which are fluidly connected to the cavitation device (4). Device (10) after claim 10 , wherein the one or more filter devices (2) are set up to separate particles that would otherwise lead to a blockage of the cavitation device (4), and / or wherein the one or more filter devices (2) are set up to a structure to prevent a filter cake in the cavitation device (4), and/or wherein the one or more filter devices (2) have a filter material whose mesh size and/or pore size is less than or equal to the diameter of the openings of the diaphragm claim 7 and/or wherein the one or more filter devices (2) are provided upstream of the one or more first pumps (3). claim 5 are arranged and are fluidly connected to them. Device (10) according to one of Claims 5 until 11 , wherein the one or more first pumps (3) can be adjusted and/or controlled and/or regulated in terms of their performance. Device (10) according to one of Claims 1 until 12 , comprising a first pressure sensor, the upstream of Cavitation device (4), for example between the one or more first pumps (3). claim 5 and the cavitation device (4), and is arranged to measure a first fluid pressure, a second pressure sensor, which is arranged downstream of the cavitation device (4), for example between the cavitation device (4) and the germ reduction device (5). and arranged to measure a second fluid pressure, and a control device arranged to turn off the one or more first pumps (3). claim 5 set and/or control and/or regulate based on the first fluid pressure and/or a pressure difference between the first fluid pressure and the second fluid pressure. Device (10) according to one of Claims 1 until 13 comprising a bypass line with an inlet located upstream of the cavitation device (4), for example between the one or more first pumps (3). claim 5 and the cavitation device (4), and an outlet which is arranged downstream of the cavitation device (4), for example between the cavitation device (4) and the germ reduction device (5), wherein a bypass valve (16) is arranged in the bypass line is set up to adjust a fluid flow in the bypass line, and wherein between the cavitation device (4) and the inlet of the bypass line a first valve (14) is arranged, which is set up to adjust a fluid flow , and between the cavitation device (4) and the outlet of the bypass line, a second valve (14) is arranged, which is adapted to adjust a fluid flow. Device (10) according to one of Claims 1 until 14 , wherein a performance, for example germ reduction performance, the germ reduction device (5), for example the device for physical germ reduction claim 4 , is adjustable and/or controllable and/or adjustable. Device (10) according to one of Claims 10 until 15 , wherein the one or more filter devices (2) have at least one microfilter and/or at least one nanofilter and/or at least one osmosis filter and/or at least one osmosis device. Device (10) according to one of Claims 8 until 16 , wherein the one or more second pumps (6) can be adjusted and/or controlled and/or regulated in terms of their performance. Device (10) according to one of Claims 1 until 17 , wherein an output, for example germ reduction output, of the cavitation device (4) can be set and/or controlled and/or regulated. Device (10) according to one of Claims 1 until 18 , comprising a / the control device that is set up to the performance of the one or more first pumps (3). claim 5 to adjust and/or control and/or regulate, for example based on the first fluid pressure Claim 13 and/or a/the pressure difference between the first fluid pressure and the second fluid pressure Claim 13 , and/or the performance of the one or more second pumps (6). claim 8 to set and/or to control and/or regulate, for example based on the outlet pressure of the fluid circuit (1) having the device and/or the second fluid pressure Claim 13 and/or a/the pressure difference between the first and the second fluid pressure Claim 13 , And / or the performance, for example germ reduction performance, the cavitation device (4) to adjust and / or to control and / or regulate, for example by adjusting and / or controlling and / or regulating the performance of one or more first and / or second pumps (3, 6), for example based on the first fluid pressure Claim 13 and/or the second fluid pressure Claim 13 , for example based on a/the pressure difference between the first and the second fluid pressure Claim 13 , and/or the performance, for example germ reduction performance, of the germ reduction device (5), for example the device for physical germ reduction claim 4 , adjust and/or control and/or regulate. Device (10) according to one of Claims 1 until 19 , wherein the cavitation device (4) is set up to receive the water to be cleaned essentially axially, and/or wherein the cavitation device (4) is set up so that the water to be cleaned flows through the cavitation device (4) essentially axially, and/or or wherein the cavitation device (4) has a cavitation section in which the cavitation can be generated and through which the water to be cleaned can flow essentially axially and/or essentially without a change in direction, and/or wherein the cavitation device (4) and/or the cavitation section is set up in such a way that the water to be cleaned undergoes a change in direction of at most 45°, for example at most 25°, when flowing through it. for example at most 10°, for example essentially no change in direction. Device (10) according to one of Claims 1 until 19 , wherein the cavitation device (4) is set up to take up the water to be cleaned essentially radially, and/or wherein the cavitation device (4) is set up so that the water to be cleaned flows through the cavitation device at least in sections on a spiral path, and/or or wherein the cavitation device (4) is set up such that the water to be cleaned undergoes a change in direction of at least 45°, for example at least 65°, for example at least 80°, for example essentially 90°, as it flows through it. System (12) for cleaning water, comprising a device (10) according to one of Claims 1 until 21 , and a storage tank (7, 17) which is set up to receive the water to be cleaned, from which the water to be cleaned can be fed to the device (10) and into which the cleaned water can be returned. system (12) according to Claim 22 , wherein the storage tank (7, 17) upstream of the cavitation device (4) and downstream of the one or more second pumps (6). claim 8 is arranged. system (12) according to Claim 22 or 23 , wherein the storage tank (7) upstream of the one or more first pumps (3). claim 5 and downstream of the one or more second pumps (6). claim 8 is arranged.

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