Siphon

Abstract

Liquid disinfecting siphon (1) in sewage pipes with a siphon inlet (7), a bulbous housing as a volume body (2; 3) with a floating body (9) located in its interior (10) and a siphon outlet (8), characterized in that - that the vertically and rotationally freely movable floating body (9) maintains its positions according to the three functional states, - firstly, acting as a seal, the floating body (9) sits on the lower seal (5), so that the floating body (9) sits in a circular seal during the so-called "drying out" due to the soft seal (5) located below it in the housing cup (3) and acts in a circular seal by means of the gap water (25) that has arisen, for physical reasons, in the housing space (10) of the volume body / housing (2, 3) and floating body (9), and thus seals twice. - secondly, in the passage position, the floating body (9) is lifted by the buoyancy force (16) and swings up and down in the housing (2; 3) and rotates (19) in the process, - thirdly, in the blocking position against backflowing water (Fig. 3), the floating body (9) is lifted by the backflowing water (12) by the buoyancy force (16) up to the upper seal (5), so that when backflowing liquids accumulate in the sewage tract, the floating body (9) floats up and presses against a soft seal (5) installed above it in the housing cover (4), thus blocking the passage of unwanted liquids and simultaneously disinfecting the water (14) in the housing space (10) by means of the current effect (26) of the galvanic element (15).

Description

[0001] The invention relates to a self-disinfecting siphon according to the preamble of claim 1.

[0002] The normal function of a siphon, also called a trap, is well known. Its main function is to drain domestic, industrial, and medical wastewater from hand basins, sinks, catch basins, bathtubs, drains, and systems. Its main function is to separate the sewer system from the interior space through its shape and the liquid that sometimes remains within it. A siphon is a shaped, usually tube-like, often serpentine or spiral, or even nested, structure. A certain amount of liquid remains in at least some of these structures, blocking the pipe cross-section, preventing direct air circulation to the sewer and preventing gas or aerosol exchange with the connected sewer system. The shape of the siphon and the liquid that remains perform the blocking function to ensure that odors, in particular, are retained in the downstream sewer system.If the fluid dries out, for example, due to prolonged disuse or other factors, the barrier effect is lost and dysfunction occurs. Odors and germs can spread in the opposite direction to the drain, thus undesirably spreading into the interior. A critical situation arises when sewer water accidentally backflows into sensitive rooms during flooding.

[0003] In this usually bacterially contaminated liquid, various germs proliferate undesirably and uncontrollably, especially at room temperature. These germs automatically evaporate unpredictably into the environment via the stagnant liquid surface in the siphon. Fluctuations in compressed air in living areas, work areas, and treatment rooms, for example, due to opening doors and / or windows, move the liquid column in the siphon, further accelerating the evaporation process.

[0004] The loss of normal functions due to evaporation and drying out is particularly critical in sensitive areas such as hospitals, nursing homes, and similar settings. In such cases, highly pathogenic germs are released in a cloud with a radius of approximately 1.5 meters above the sinks and basins. Particularly dangerous is the wetting of the inner wall of the siphon with contaminated wastewater. This moisture evaporates, allowing invisible and unwanted germs to enter living, working, and treatment rooms.

[0005] For example, known techniques for preventing germ contamination of indoor air involve periodically heating the liquid contents of the siphons to kill germs. This process is very expensive to purchase and operate and is usually only suitable for new installations. Periodic heating, usually to 85° Celsius, further accelerates the evaporation process. There is a risk that the siphon itself will dry out during use. This also invalidates its blocking function.

[0006] For example, WO 2011 / 032543 A2 describes a self-disinfecting odor trap consisting of a odor trap body made entirely or partially of ultraviolet light-permeable material, preferably quartz glass. A source of ultraviolet light (UV lamp) is mounted between the two legs of the odor trap body, thus enabling maximum irradiation for disinfecting the entire sealing fluid. At least one device for generating mechanical vibrations is mounted in the odor trap body in such a way that it causes the odor trap body and the sealing fluid contained therein to vibrate. The odor trap can also be equipped with a heating device for heating the sealing fluid. The described solution requires a very high level of technical complexity and thus leads to high installation costs.

[0007] According to DE 10 2015 006 286 A1, a conventional odor trap is proposed using a titanium dioxide nano-coating and light-activated coating. This allows the disinfection and cleaning steps, as well as the oxidation of organic constituents, to be carried out automatically and simultaneously on a single chemical structure, the titanium dioxide nano-coating, with minimal energy and control requirements. The disadvantage is that the titanium dioxide nano-coating must be separately activated for successful operation, thus requiring photocatalysis control. This requires considerable coating and equipment expenditure, as well as an electrical connection and specialized personnel for installation, operation, and maintenance. TiO2 enters the wastewater through the unavoidable abrasion during operation. TiO2 is now considered a hazardous substance due to the risk of accumulation in the human body. In the event of a power failure, the system would be ineffective.The system is only intended to be operated in intervals.

[0008] DE 92 02 902 U1 describes a device for disinfecting stagnant water in odor traps, which is to be installed above the odor trap of a wastewater drainage system. A germicidal treatment zone is installed downstream of the wastewater flow, which at least impinges on the stagnant water that seals the odor trap. The germicidal device can be designed as a heating element or simply as a galvanic element.

[0009] DE 10 2018 106 770 B3 describes a self-disinfecting siphon for sewer pipes with a siphon inlet and an outlet containing a barrier fluid maintained at a liquid level. The siphon has means on its inner wall for positioning a ball that floats when a certain liquid level is exceeded. The buoyant ball and at least part of the means for positioning the buoyant ball on the inner wall of the siphon inlet are coated with different metallic materials in such a way that a galvanic element forms at a gap between metal electrodes made of different electropositive metals. The siphon inlet can have a widened portion, webs or ribs, bypass channels, additional electrodes, or special coatings. This device functions as a ball-closure system and has the disadvantage that the ball can stick to the outlet in the housing.If this siphon dries out, the ball then sits on the seal seat of the ball and the housing, forming a kind of adhesive. The buoyancy of the ball cannot overcome this adhesion, or only does so too late. This dysfunction can lead to unwanted water backup.

[0010] Conventional state-of-the-art siphons have in common that they keep sewer odors away from residential and commercial spaces. Therefore, they only work in the direction of drainage. Due to climate change, numerous weather phenomena are being felt worldwide, which regularly lead to rapid flooding events due to flooding and heavy rainfall. Various technical solutions for external protection against flooding exist. However, sewage systems often lack check valves, so flooding and overflow can lead to pressure increases and unwanted backflow in the sewer systems, which also affect the sewage system inside buildings through backflow.

[0011] The object of the invention is to propose a self-disinfecting siphon (method and device) with autonomous functionality and extremely simple installation, which enables the secure separation of the sewer system from interior spaces under all environmental and operating conditions through different barrier functions on both sides, while actively combating pathogens. This siphon should enable effective disinfection at all times to prevent the rapid proliferation of germs introduced into the barrier fluid via the air, as well as the release of organic substances via aerosol formation. The siphon should be equally suitable for new construction and reconstruction, be inexpensive to purchase, and operate largely maintenance-free.

[0012] The siphon is designed accordingly to ensure its intended function and long-term maintenance-free functionality. The siphon consists of a two-part, plug-together housing and a largely egg-shaped float within it, which is freely movable vertically and rotationally. Flexible seals are mounted on or in the inlet and tubular outlet lines at the inlet openings to the housing. The surface of the float can be provided with spiral formations, which generate rotary movements with the aid of the water currents during operation. The surface of the float and the interior of the housing, including the attachable cover, are metallically coated. This creates a so-called galvanic element in the siphon's wastewater system. Should unsuitable or disruptive objects enter the siphon due to improper use, the siphon can be opened via its cover.The detachable connection between the cover and the housing cup functions as a sealing plug connection or a sealing conical thread.

[0013] The object is achieved according to the invention by the features of claim 1. Further features are described in subclaims 2 to 11.

[0014] For economic and functional reasons, the self-disinfecting siphon (1) for sewage pipes generally consists of an appropriately shaped plastic housing (2) with inlet and outlet (7; 8) in conventional connectable designs for installations. The housing (2) is divided into two parts, preferably a lower cup-shaped part (3) with outlet (8) and sealing surface or sealing ring (6) in the cup base, and an upper, sealingly fitted, removable cover (4) with inlet (7) and inner sealing ring (5). Inside the housing (10) there is a float (9) in the shape of a sphere, an ellipsoid, or a disc, preferably in an elliptical shape, which is guided through the cup shape. In the rest position, the float (9) rests on the lower sealing surface or sealing ring (6) thanks to a weight (21) in the lower area of ​​the float (9) and closes the outlet (8).In the working position, the float (6) floats and oscillates up and down in the housing space (10) around a central position in a pendulum movement (11) and can hit the seal (5) and sealing surface / ring (6), which can be perceived as impact noises or quiet rattling. When water recedes (12), for example due to backflow following flooding, the float (9) assumes an upper position, sealing the upper sealing ring (5) and preventing the backflow of liquid (12). The float (9) and the inner wall (13) of the housing cup (3) have different metallic coatings (27) so that a galvanic element (15) is formed with the wastewater (14) to combat germs and odors (self-disinfection). The float (9) and the inner walls of the housing parts are nano-coated, which effectively prevents plaque formation. The innovative siphon (1) replaces the previous siphon.A previously common S-shaped odor trap siphon can be or remain downstream of it.

[0015] The new siphon (1) operates in multiple ways, including mechanical, geometric, and electrical components. A movable hollow float (9) located in the siphon housing (2) is designed as a sphere, egg-shaped body, ellipsoid, or disc, and, when at rest, securely seals against the sewer system at the lower sealing surface (6). The siphon can even dry out without losing its sealing function. As soon as wastewater (14) is admitted into the siphon from above, the float (9) rises in the housing space (10) and opens the flow; when the water flow stops, it sinks and seals again.In the special case of water backflow (12), for example, due to natural events such as flooding and inundation, the float (9) rises to its upper protective function and seals in cooperation with the upper sealing ring (5), automatically stopping the backflow (12). The siphon cover (4) is firmly connected to the housing (3) by suitable geometric measures, such as a short thread, but can be manually removed. The housing geometry of all components takes into account all possible forces that may occur.

[0016] To combat germs, the components (3; 4; 9) of the housing (2) are metallized at defined locations, particularly on the housing cup (3), advantageously silver-plated, and also gold-plated in the sealing seat (6) of the hollow sphere, ellipsoid, or disc. The surface of the float (9), for example, is completely covered with a titanium layer or at least in defined locations. This allows the components (3; 9) of the siphon (1) to form a galvanic element (15) inside. This element is effective in both flowing and stationary wastewater (14). All metal applications are generally nano-coated. This nanosurface has the advantage of a large specific surface area and is highly reactive. Even wastewater (14) with a relaxed surface cannot cause extensive wetting of the nanosurfaces. In addition to preventing plaque formation inside the siphon (1), the inner housing parts and the float (9) are completely nano-coated.In principle, other metals in nanoform are also suitable as galvanic elements, deviating from the preferred material pairing. The deciding factors here are technological convenience and the magnitude of the potential difference.

[0017] The non-wetting of the metallic nanosurfaces is utilized in this system in the design of a galvanic element (15). Thus, the dirty water (14) cannot penetrate into the narrowest gap between the support on the lower seal (6) and the surface of the float, and trigger an adhesive effect after drying. The water (14) "rolls" over this critical area without directly wetting these surfaces.

[0018] To ensure absolute functionality, the size of the float (9) is selected in relation to the diameter of the outlet (8) so that the buoyancy force (16) is large enough to overcome any small adhesions at the sealing seat. A diameter ratio of the float (9) of 1:1.2 to 1:4 is suggested, preferably 1:1.3. For a design with minimal height, the ratio can be as high as 1:10. For example, with an ellipsoid diameter D = 140 mm, a buoyancy force of approximately 14 N is generated.

[0019] The float (9) is spherical, ellipsoidal, or disc-shaped (lens-shaped) consisting of two halves (20; 21) and permanently pressed or glued together, or alternatively, it is blown in one piece. The upper part (20) is equipped with spiral-shaped hollow profiles (17) at an angle of approximately 45°, so that water (14) flowing into the housing (2) from above exerts a tangential force (18) on the float (9) via the profiles (17) in the float (9), causing it to rotate (19). Furthermore, the surface of the upper part (20) is nano-coated to prevent plaque formation. The lower part (21) is formed with tapered profiles only about halfway above the middle of the ellipsoid, but is metallically nano-coated for the purpose of a water-repellent lotus effect to prevent plaque formation and is titanium-coated to form a galvanic cell (15).In addition, the weight of the float (9) is significantly lower than the buoyancy force (16) acting on it. Thin-walled plastic is used as the construction material. The lower section of the float (9) has a weight (21) so that the float (9), which can also be circular, stays in position and sinks in a defined manner when the flow stops and the wastewater (14) dries up. The lower section of the float (9) is without profiles (17) in the area of ​​the sealing support surface (6) in order to create the sealing effect and the split water ring (25) in the rest position.

[0020] The housing (2) is equipped in the area of ​​the float (9) on the inner wall (13) of the housing cup (3) vertically or diagonally with longitudinal ribs (22) or elevations for the purpose of swirling the flowing liquid (14), which, however, only run out up to the sealing area in order to enable the sealing effect with the float (9) ( Fig. 10). As the fluid (14) flows, water vortices (23) are generated in the housing chamber (10) by the design of the housing chamber with vertical or inclined longitudinal ribs (22) and by the rotation (19) of the float (9). The fluid flow, with its vortex flow (24), cleans the surfaces of the float (9) and the housing (2) within the active system.

[0021] All inner surfaces of the housing cup (3) are metallized, so that the material of the float (9) is absorbed by the wastewater (14) in the housing (2) to form a galvanic element. The chemical composition of the water acts as an electrolyte. Its electrical effect on germs is well known. This has a lasting effect on the microelectrical processes in the germ cells.

[0022] Geometrically, the float (9) sits in the rest position of the siphon (1) on the lower sealing surface and / or sealing ring (6) at the outlet (8) of the housing (2). As an additional seal, a small water ring (25) remains above the lower sealing surface (6) in the circumferential gap between the float (9) and the housing cup (3), known as the adhesive or gap water (25), which is already galvanically disinfected.

[0023] A galvanic cell (15) is created between at least two different metals, here between titanium, silver, and gold. The resulting electrical voltage is relatively low and therefore completely safe for humans. In the constructed gap between the float (9) and parts of the housing, a significant galvanic current, a so-called short-circuit current (26), can flow in the conductive wastewater (14). The magnitude of the current can be influenced by the design of the gap. The principle is based on the knowledge that only direct electrical current kills germs, not the voltage. Germs cannot develop resistance to electrical current. In addition, tiny amounts of silver ions from the housing coating (27) dissolve in the electrolyte. Silver ions are known to be microtoxic. This creates a highly effective dual effect. The tiny amounts of dissolved silver ions in the wastewater increase the conductivity of the wastewater.A very high current can flow. During the short contact time with the wastewater, only traces of silver ions are released into the housing, which are completely harmless from a toxicological perspective.

[0024] The inventive siphon (1) fulfills an important additional function in the event of difficulties in ensuring orderly drainage (8) or backflow (12) due to a blockage in the sewer system or flooding. In the event of an incident, the float (9) in the housing (2) rises in such a way that it seals off the backflow (12) at the inlet (7) of the housing cover (4) with the soft sealing ring (5) embedded in a recess (6). This prevents dirty water (14) from such incidents from entering sensitive residential or commercial areas, and contamination of these locations is prevented. The dirty water backed up in the siphon is additionally disinfected by the galvanic current effect. The upper and lower seals (5, 6) are geometrically identical. The system can also be equipped with other features.For example, the soft sealing ring (5) can be provided with metallic particles on its surface or in the material, which participate in the galvanic system.

[0025] A siphon of the required design is known under DE 10 2018 106 770, but it does not meet all requirements for total safety. The metallized ball in this system can stick to the seal seat due to dried-on wastewater residues and sludge, thus impeding its intended function. Likewise, fibrous components in the wastewater can become trapped between the ball and the seal.

[0026] A clear distinction from DE 10 2018 106 770 is the multiple functions of an upper and lower seal, a rotary and short-stroke up-and-down movement of the float between the seals, and a convenient cleaning option in an emergency. This short-stroke movement of the float in the housing, perceived by the user as an unobtrusive rattling noise, indicates proper operation.

[0027] Inside the housing, the gaps between the components are kept so small that vermin such as mice, rats, and snakes cannot pass through the sewer system. If they penetrated the housing, the float would inevitably be lifted against the upper seal, blocking any further passage. Their wet skin or fur would cause a short circuit in the galvanic system. These animals are known to avoid electrical fields. This creates at least a repellent effect.

[0028] An embodiment of the invention is explained in more detail with reference to the drawings. They show: Fig. 1 a siphon in section during water flow (working position) Fig. 2 a siphon in section in sealing rest position Fig. 3 a siphon in section in sealing backflow function Fig. 4 the split water formation as a partial section of the siphon in section Fig. 5 the enlarged gap water formation as a partial section of the siphon in section according to. Fig. 4 with schematic representation of the current flow in the electrolyte gap water Fig. 6 the enlarged gap water formation on both sides as a partial section of the siphon in section according to. Fig. 4 with a schematic representation of the current flow in the electrolyte split water. Fig. 7 the individual parts of the siphon in exploded view Fig. 8 the housing cover in section with seal Fig. 9 the housing cup in section with seal and coating Fig. 10 the floating body in a sectional view in the form of an oval spherical hollow shape. Fig. 11 the float in section Fig. 12 the siphon (1) in variation for low vertical space requirement in blocking function Fig. 13 the siphon (1) in variation for low vertical space requirement in operating position Fig. 14 a floating body (9) in the form of a disc (9) with helical teeth (31) in the peripheral area and the movements carried out during operation. Description with reference symbol:

[0029] Fig. 1 shows the siphon (1) in section with a housing (2) consisting of a housing cup (3) with lower sealing surface or sealing ring (5) and outlet (8) and a housing cover (4) with upper sealing ring (6) in a suitable contour (6) and inlet (7) during the water flow (14) in the so-called working position.

[0030] The float (9) is equipped with obliquely running ribs (22) and / or elevations (22) which run at an angle of 45°, also vertically or perpendicularly, but these run out only up to the sealing surface (6) in order to enable the sealing effect with the float (9). In addition, it is nano-coated with silver or gold, with gold only near the outlet (8).

[0031] The lid (4) is fitted into the housing cup (3) in such a way that it can be opened by anyone for cleaning or inspection. It is preferably nano-coated towards the housing chamber (10) to prevent adhesion and plaque buildup. Alternatively, a so-called sealing short thread can be used.

[0032] The two-part float consists of an upper part (20) and a lower part (20), which are tightly pressed or glued together and nano-coated with titanium. The float can be designed as a sphere, egg-shaped, lens-shaped, ellipsoidal or disc-shaped, or alternatively, it can be formed in one piece using blow molding technology. The upper part (20) and lower part (20) have merging profiles (17) that run at an angle of approximately 45° towards the center of the float (9) and only taper off approximately halfway above the lower part. The lower part of the float (20) has a weight (20) in the base so that the float (9), which can also be a circular float, stays in an optimal position and sinks in a defined manner when the flow stops and the wastewater (14) dries up. Without profiles ((17) the lower part of the floating body (20) is in the area of ​​the sealing support surface ortowards the sealing ring (6) in order to form the sealing effect and the gap water ring (25) in the rest position.

[0033] The dirty water (14) flows in via the inlet (7) and, upon hitting the float (9), splits up and flows out around it. The dirty water (14) gets under the float (9), causing it to float up and open the outlet (8). Due to the buoyancy acting on it, the float (9) constantly performs an up and down movement as a pendulum movement (11) in the axial direction of the siphon (1) as long as dirty water (14) flows in. In addition, the water flow through the profiles (17) in the float (9) creates a tangential force (18) in the float (9), which causes the float (9) to rotate (19). In the working position, the float (9) therefore performs a pendulum (11) and rotational movement (19) simultaneously.

[0034] Due to the ribs (22) of the housing inner wall (13) and the rotating and pendulum movement (11, 19) of the floating body (9), the dirty water (14) flowing through the housing space (10) is partially deflected and several vortices (23) are created in the housing space (10), whereby a flushing effect occurs in the housing space (10) and on the floating body (9) through vortex flow (24), which cleans it and thus deposits (plaque formation) are prevented in conjunction with the nano coating (27).

[0035] Fig. 2 shows a siphon (1) in section according to Fig. 1, but in a sealed rest position. The float (9) rests sealingly on the lower sealing surface or sealing ring (6) of the housing cup (3). A water gap ring (25) forms between the float (9) and the coating (27).

[0036] Fig. 3 shows a siphon (1) in section according to. Fig. 1 and Fig. 2, but with a sealed backflow function (12). The float (9) rests tightly against the upper sealing ring (5) of the housing cover (4) and prevents backflow (12) into the sink, bathtub, sink, washbasin, and thus into the interior of the building.

[0037] Fig. Figure 4 shows the water gap (25) between the housing cup (3) and the float (9) as a partial section of the siphon (1) in section. At the end of the dirty water flow (14), the float (9) gradually lowers and comes to rest on the lower sealing surface or sealing ring (6) in the housing cup (3). The last dirty water (14) forms a water gap ring (25) around the float (9).

[0038] Fig. 5 shows the formation of crack water according to. Fig. 4 as a partial section of the siphon (1) enlarged in section with schematic representation of the current flow (26) in the electrolyte gap water (25).

[0039] Fig. 6 shows the further enlarged gap water formation (25) as a partial section of the siphon (1) in section according to. Fig. 5 with schematic representation of the current flow (26) in the electrolyte gap water (25).

[0040] Fig. 7 shows the individual parts of the siphon (1) in section in exploded view.

[0041] Fig. 8 shows the housing cover (4) in section with seal (5).

[0042] Fig. Figure 9 shows the housing cup (3) in section with the sealing ring (5) in the contour (6) in front of the outlet (8). Approximately the lower third of the bottom of the housing cup (3) is coated with a gold nanocoating, and the upper third with a silver nanocoating to form a galvanic element with the float (9) and wastewater (14). The ribs (22) are indicated in the background. Fig. 10 shows the floating body (9) in perspective in section with the profiles (17) in the upper and lower parts (20; 21), here in a slightly inclined position.

[0043] Fig. Figure 11 shows a cross-section of the floating body (9), consisting of the upper and lower sections (20; 20) with the profiles (17). The coating (27) is indicated all around. A weight (21) is indicated in the bottom, which contributes to the defined lowering when the wastewater flow (14) dries up, for the purpose of sealing.

[0044] Fig. Figure 12 shows the two-part siphon (1) in a variation for a small vertical space requirement in a blocking function, for example, under a bathtub. The floating body (9) is designed in the shape of a disc and has a titanium nanocoating to form a galvanic element for disinfection with the partial gold and silver nanocoating of the housing cup (3) and the split water (25) as an electrolyte.

[0045] Fig. Figure 13 shows a variation of the siphon (1) for a small footprint in a flow-through function with wastewater flow (14), for example, under a bathtub. The float (9) is designed in the shape of a disc and has inclined profiles (17) at least tangentially circumferentially, which generate a tangential force (18) that causes the float (9) to rotate (19), so that water vortexes (23) and a cleaning vortex flow (24) are created in the housing space (19) through the water flow (14), in order to prevent deposits and plaque and to clean the inside of the housing (2).

[0046] Fig. Figure 14 shows a floating body (9) in the form of a discus. Its activation or movements (11, 16, 18, 19) take place in a conventional housing, for example as shown in the Fig. 12 and Fig. 13, by passing wastewater (14). The disc-like disc (9) has inclined profiles (17) that extend at least tangentially around its circumference, generating tangential forces (18) that cause the floating body (9) to rotate (19). The resulting water vortexes (23) produce a cleaning effect in addition to the pendulum motion (11) by means of the up-and-down movement of the floating body (9).

[0047] Fig. 15 shows in detail near-wall micro-vortices of the wastewater flow in the siphon Summary of reference symbols 1 siphon 2 housings, plastic housing 3 Housing cup 4 housing cover, cover 5 Soft seal, seal 6 Sealing contour in housing and cover 7 Inlet, inlet, inlet nozzle 8 Outlet, outlet, outlet nozzle 9 egg-shaped or discus-shaped floats 10 Housing space 11 Pendulum movement of the floating body 12 backflowing water, backflowing dirty water 13 Inner wall of the housing cup 14 Wastewater, sewage 15 galvanic element, galvanic cell 16 Buoyancy 17 Profilings, hollow profilings, diagonal ribs 18 Tangential force 19 rotations 20 lens-shaped float, upper and lower parts 21 Weight for shifting the center of gravity 22 ribs, longitudinal ribs, elevations 23 water vortexes 24 Vortex flow 25 split water, split water ring, water ring 26 galvanic short-circuit current in symbolic representation 27 metallic coating 28 shortenable inlet 29 Hatching 30 production-optimized production joints 31 near-wall microvortices of the fluid flow QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] WO 2011 / 032543 A2

[0006] DE 10 2015 006 286 A1

[0007] DE 92 02 902 U1

[0008] DE 10 2018 106 770 [0009, 0025, 0026]

Claims

[1] Liquid disinfecting siphon (1) in sewage pipes with a siphon inlet (7), a bulbous housing as a volume body (2; 3) with a floating body (9) located in its interior (10) and a siphon outlet (8), characterized by , - that the vertically and rotationally freely movable floating body (9) maintains its positions according to the three functional states, - firstly, acting as a seal, the floating body (9) sits on the lower seal (5), so that the floating body (9) sits in a circular seal during the so-called "drying out" due to the soft seal (5) located below it in the housing cup (3) and acts in a circular seal by means of the gap water (25) that has arisen, for physical reasons, in the housing space (10) of the volume body / housing (2, 3) and floating body (9), and thus seals twice. - secondly, in the passage position, the floating body (9) is lifted by the buoyancy force (16) and swings up and down in the housing (2; 3) and rotates (19) in the process, - thirdly in blocking position against backflow of water ( Fig. 3) the floating body (9) is lifted by the receding water (12) by the buoyancy force (16) up to the upper seal (5), so that when liquids accumulate in the wastewater tract recede, the floating body (9) floats up and presses against a soft seal (5) installed above it in the housing cover (4), thus blocking the passage of unwanted liquids and simultaneously disinfecting the water (14) in the housing space (10) by means of the current effect (26) of the galvanic element (15). [2] Liquid disinfecting siphon according to claim 1, characterized bythat when the waste water (14) flows through and due to the rotational movement (19) of the floating body (9) when the waste water (14) flows through, micro-vortices are formed (31) near the wall and cause a washing effect in the interior (10) on the surfaces (27) of the siphon and the surfaces (27) of the floating body (9). [3] Liquid disinfecting siphon according to claim 1, characterized by that the up and down movement (11) of the float (9) during the flow (14) and its impact at the top and bottom in the housing (2; 3) creates a rattling noise as a sign of the intended function and thus indicates its functionality. [4] Liquid disinfecting siphon according to claim 3, characterized by that the absence of the rattling noise signals dysfunction. [5] Liquid disinfecting siphon according to claim 1, characterized bythat the choice of gap dimensions between the float (9) and the housing space (10) prevents the penetration of vermin. [6] Liquid disinfecting siphon according to claim 1, characterized by that the galvanic currents (26) between the surface coatings (27) produce at least a repellent effect on invading vermin in addition to the disinfecting effect of the galvanic current ((26). [7] Liquid disinfecting siphon according to claim 1, characterized by that the position of the floating body (9) in the housing cup (3) is centered by a weight (21, 28) located within the floating body (9) and a variation of this weight (21, 28) in the lower region of the floating body (9) can change the contact force on the seal (5) of the outlet (8), the sealing forces and the necessary buoyancy force (16). [8] Liquid disinfecting siphon according to claim 1, characterized bythat the disinfection process of the liquids (14) by galvanic current (26) in all functional states by the water level (14) in the interior (10) of the siphon (1) forms a galvanic element (15).

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