DE102009042212A1 - Self-disinfecting odor trap - Google Patents

Abstract

The invention describes a self-disinfecting odor trap, consisting of an odor trap body (1) which consists entirely or partially of material that is permeable to ultraviolet light, preferably quartz glass. A source of ultraviolet light (UV lamp) (2b) is attached between the two legs of the odor trap body (1) and thus enables maximum irradiation and disinfection of the entire barrier liquid (5). At least one device for generating mechanical vibrations (3) is fastened in the odor trap body (1) in such a way that it causes the odor trap body (1) and the sealing liquid (5) contained therein to vibrate, whereby both rapid movement of the water in the sealing liquid (5 ) contained particles and microorganisms with very frequent changes of direction and thus the avoidance of UV shadow zones is achieved, as well as the adhesion of particles to the inner wall of the odor trap body and the detachment of adhesions, the dirt and biofilm formation is prevented and in the case of the use of ultrasound frequencies a additional killing of microorganisms is achieved. The self-disinfecting odor trap can also be equipped with a heating device (4) for heating the sealing liquid.

Description

According to the European Standard EN 274-1: 2002 Odor locks are considered a hydraulic barrier between the drain valve of a sanitary appliance (sink, bathtub, sink, etc.) and the drainage pipe. They prevent the escape of gases from the drainage system in the building, without hindering the drainage of the wastewater. For this purpose, all odor traps contain a barrier liquid. This barrier liquid is determination and functionally always a remaining portion of the introduced via the odor trap in the dewatering plant liquid and therefore also contains the ingredients of the introduced into the sink or sink liquid.

It is known in the clinical field that odor traps and the barrier fluids contained in them can contain pathogenic microorganisms that enter the ambient air during the intended use of the odor trap by aerosol formation (eg. Döring et al., 1989; Sissoko et al., 2005 ).

Odor traps were described in which during operation and without an after DIN 274-1: 2002 not permissible interruption of the hydraulic locking function, the barrier liquid automatically disinfects the interior of the odor trap. These are therefore referred to as "self-disinfecting odor traps" (English: self-infected siphons, self-disinfecting drain traps). Self-disinfecting odor traps are characterized in that by the action of preferably physical disinfection mechanisms (ultraviolet radiation, heat, ultrasound and combinations thereof), the germ content of the odor trap and the barrier liquid contained therein is lowered so much that the risk of leakage of pathogenic germs in the case of intended Use resulting aerosol is eliminated.

Clinical long-term studies with self-disinfecting odor traps of different design and equipment have shown that only in such self-disinfecting odor traps, in addition to physical or chemical disinfection principles (heat, ultraviolet light, chemicals) and electromechanical vibrations to prevent the adhesion of lime and dirt particles and microorganisms in the Inner wall of the odor trap can be used, the formation of dirt and biofilms can be permanently prevented. Avoiding the. Formation of biofilms is absolutely necessary for the function "self-disinfecting" ( Sissoko et al. 2005 ). It is a prerequisite that the sterility of the barrier fluids can be achieved permanently and at any time.

Variants of self-disinfecting odor traps are described, which have the germicidal properties of high temperature ( DE 4206901 . US 4192988 ) or ultraviolet radiation in liquids ( DE 4206901 . DE 4025078 A1 . DE 29509210 U1 ) serve. Developments for the cleaning and disinfection of odor traps (so-called siphons) by means of ultrasound are known ( DE 2747992 A1 . US 3,175,567 ). The combination of ultraviolet light and ultrasound ( DE 295 09 210 U1 ) is described for the cleaning and disinfection of objects in liquids, but not for the cleaning and degerming of odor traps. The combination of ultraviolet light and high temperature ( DE 42 06 901 A1 ) is described for the treatment of barrier fluid in odor traps.

In the Utility Model Application G 92 02 902.7 the application of heat disinfection, electrolytic disinfection and disinfection by means of ultraviolet light in odor traps is described.

Also, the combination of elevated temperature ultrasound has been described for self-disinfecting odor traps ( EP 1866485 ). The same patent also discloses the combination of electromechanical vibrations with heat for the automatic cleaning and disinfection of odor traps. The combination of electromechanical oscillation for automatic cleaning and ultraviolet radiation for disinfecting the barrier liquid is not disclosed. In the EP 1866485 described application of ultraviolet light radiation relates to the air space above the barrier liquid for disinfecting the transition of the odor trap to the drain valve of the sanitary equipment subject.

Initially, the only binding objective function for the development of self-disinfecting odor traps was, until 2005, that of Döring et al. (1989, 1991) published statement that for the release of microorganisms from odor traps by the addition of liquid a minimum concentration of about 10,000 living germs per milliliter of barrier liquid is necessary.

This set the target for the disinfection performance of the devices (at least 5 log levels). However, this killing performance was found to be inadequate in subsequent clinical studies on the use of the devices. In fact, in the course of numerous clinical tests of "self-disinfecting odor trap in sewers" ( EP 1866485 ) based several hundred individual measurements of bacterial emissions from odor traps in various hospitals in Germany surprisingly found ( SISSOKO et al. 2004 a, 2004 b, and 2005 ) that in order to achieve the emission safety required for clinical high-risk areas, a permanent and complete continuous kill of microorganisms in the sealing liquid of the odor trap must be ensured.

It has been found that the barrier liquid of the odor trap must be completely and always virtually germ-free (microbial content less than 10 colony-forming units per milliliter of barrier liquid) in order to prevent the emission of germ-containing aerosols completely and at any time ( Sissoko et al. 2005 ). This new target value for self-disinfecting odor traps is therefore one thousand times lower than the current value. The continuous disinfection performance had to be increased by a thousandfold (to at least 8 log levels) during the development of further self-disinfecting odor traps.

This increase in performance can only be guaranteed by a continuous and complete germ killing.

This requirement may vary from in EP 1866485 combination is not constantly and fully met for the following reasons:
The continuous disinfection in self-disinfecting odor trap after EP 1866485 is achieved according to the invention in a variant by means of heat and ultrasound. The application of low-frequency vibrations described above serves to avoid the biofilm formation on the inner wall of the odor trap, but not the germ killing.

The described application of ultrasound leads, as is known, to aerosolization, which is known as the so-called nebulizer effect and is used, for example, for room humidifiers. This ultrasound-induced aerosolization takes place in addition to the aerosolization which occurs as intended during the inflow of liquid. It is therefore extremely problematic in the hygienic sense, because before the ultrasound application no or no complete killing of the germs took place in the barrier liquid. Only after several minutes of interaction of heat and ultrasound the necessary disinfecting effect is achieved, which leads to the necessary for the emergence of germ-free aerosols low germ density in the barrier liquid. In the EP 1866485 The application of ultrasound described is coupled to a minimum temperature of 50 ° C, but this is not sufficient for killing germs before the ultrasound application. A liquid containing living microorganisms can not be sterilized by heating to a temperature of 50 ° C alone. Therefore, it can not be prevented that nucleated aerosols are produced by the ultrasound treatment which starts at this temperature and the resulting nebulizing effect, and that these enter the environment from the odor trap which is intended to be open at all times during use.

In the EP 1866485 revealed minimum temperature of 50 ° C corresponds to the experimentally determined minimum temperature at the combined ultrasound-heat disinfection and germs that are killed only above the boiling point of water (100 ° C at sea level) (spores and spore-forming) and for their killing therefore usually and without ultrasound application with increased pressures, which allow a minimum temperature of 121 ° C, must be worked. be killed. True, is in EP 1866485 no necessary energy density of the ultrasound exposure (watt / liter) is given, but it is known from practice that this necessary ultrasound energy must be so high that a vibration-induced aerosol formation on the surface of the liquid thus treated occurs and can not be avoided.

One at the in EP 1866485 described self-disinfecting odor trap partially or non-existent killing of microorganisms at the beginning of ultrasonic treatment at temperatures of 50 ° C thus results due to the nebulizing effect of ultrasound to the formation and emission of germ-containing aerosols and thus to a situation that is extremely dangerous from a hygiene point of view.

Results of clinical tests of self-disinfecting olfactory occlusion EP 1866485 led to demands from hospital hygienists for clinical risk areas (eg, premature delivery intensive care units), which can only be met by a complete continuous heat disinfection, which precludes intermediate formation of infectious aerosols during the disinfection process.

In order to ensure this complete continuous disinfection by heat and in combination of heat and ultrasound or low-frequency vibration, a minimum disinfection temperature of 93 ° C in the barrier liquid must be permanently maintained. For frequently used odor traps, this temperature can be ensured only by using a strong, fast heating, which again leads to faster evaporation-induced reduction of the volume of the barrier liquid due to the small volume of barrier liquid, which is about 200 milliliters in standard odor traps. That's why Self-disinfecting odor traps with heat disinfection, with level control and regulation. around the DIN EN 274-1: 2002 correspond to.

• 1. Wenn zwischen dem niveaubedingten Abschalten der Heizung und erneutem Erhitzen längere Stillstände entstehen, wie dies beispielsweise bei nicht belegten Patientenzimmern oder wenig benutzen Waschbecken auftritt, vermehren sich Mikroorganismen, die durch die Luft in die Sperrflüssigkeit des bestimmungsgemäß offenen Geruchsverschlusses eingetragen werden, in der nun abgekühlten keimfreien Sperrflüssigkeit und werden, da zwischenzeitlich keine Hitzeabtötung infolge zu geringen Volumens stattfinden kann, bei der nächsten Benutzung zwangsläufig emittiert, bevor eine erneute Hitzedesinfektion erfolgt.
• 2. Gelangt eine sehr kleine, jedoch sehr stark keimhaltige Flüssigkeitsmenge in den Geruchsverschluss (z. B. Sputum, Blut), ohne dass dadurch der für das Einsetzen der Erhitzung notwendige Mindestfüllstand überschritten wird, kommt es nicht zur thermischen Abtötung dieser Keime, vielmehr wirkt diese Zugabe wie die Beimpfung einer bakteriologischen Nährlösung und die eingebrachten Mikroorganismen können sich dann in der Sperrflüssigkeit vermehren. Diese werden dann bei der nächsten bestimmungsgemäßen Benutzung des Geruchsverschlusses emittiert, da vor dieser Benutzung keine thermische Desinfektion infolge des zu geringen Füllstandes stattfindet.
• 3. Bei der thermischen Desinfektion entstehen in den Ein- und Ausgangsbereichen des Selbstdesinfizierenden Geruchsverschlusses zwangsläufig und aus Sicherheitsgründen (Verhinderung der Verbrühungsgefahr des Benutzers) notwendigerweise Zonen erniedrigter Temperatur (entsprechend den Sicherheitsvorschriften mit weniger als 60°C), die zudem nur zeitweise und nicht ständig mit Flüssigkeit benetzt sind. Diese Zonen können zu Bereichen der bevorzugten Vermehrung von mesophilen und thermophilen Erregern werden. Wegen der nur zeitweise vollständigen Bedeckung dieser Zonen mit Flüssigkeit ist die Verhinderung der Bildung eines Biofilms durch Vibration eingeschränkt. Die sich dort vermehrenden Erreger werden dann beim Einlaufen von Flüssigkeit in den Geruchsverschluss wiederum in die Sperrflüssigkeit eingetragen, wo es nach niveaubedingter Abschaltung der thermischen Desinfektion zur Vermehrung dieser Erreger kommt, die dann bei der nächsten bestimmungsgemäßen Benutzung des Geruchsverschlusses emittiert werden.

The level control to ensure the intended function of the odor trap in the after EP 1866485 described disinfection method by heat in combination with ultrasound can only be achieved by the heating remains switched off when reaching the intended minimum volume of the barrier liquid until the minimum level of the barrier liquid is exceeded again by reuse of the pool drain. However, this procedure inevitably entails the following serious uncertainties:

• 1. If between the level-related shutdown of the heater and reheating longer stoppages occur, as occurs, for example, in unoccupied patient rooms or little use sink, multiply microorganisms that are registered by the air in the barrier liquid of the intended open odor trap in the now cooled germ-free barrier fluid and, since there is no heat loss can take place in the meantime due to low volume, inevitably emitted at the next use before a renewed heat disinfection takes place.
• 2. If a very small, but very strong germ-containing amount of liquid in the odor trap (eg sputum, blood), without thereby exceeding the minimum level required for the onset of heating, it does not cause thermal killing of these germs, but acts this addition, such as the inoculation of a bacteriological nutrient solution and the introduced microorganisms can then multiply in the barrier liquid. These are then emitted at the next intended use of the odor trap, since prior to this use no thermal disinfection takes place as a result of the insufficient fill level.
• 3. In the thermal disinfection occur in the entry and exit areas of the self-disinfecting odor trap inevitably and for safety reasons (preventing scalding the user) necessarily zones of reduced temperature (according to the safety regulations with less than 60 ° C), which also only temporarily and not constantly are wetted with liquid. These zones can become areas of preferred propagation of mesophilic and thermophilic pathogens. Because of the only temporary full coverage of these zones with liquid, prevention of biofilm formation is limited by vibration. The pathogens that multiply there are then in turn introduced into the barrier liquid when liquid enters the odor trap, where, after a level-related deactivation of the thermal disinfection, this agent is replicated and then emitted at the next intended use of the odor trap.

This, the required safe function of a self-disinfecting odor trap substantially limiting uncertainties can be eliminated only by an additional, the volume of the barrier liquid during disinfection non-reducing killing method, preferably by irradiation with ultraviolet radiation at room temperature.

• 1.) Das Sperrflüssigkeitsvolumen wird in der zur Abtötung benötigten Intensität von der ultravioletten Strahlung, vorzugsweise mit einer Wellenlänge zwischen 276 nm und 300 nm, durchdrungen.
• 2.) Die Bildung von Zonen hinter Schmutzpartikeln, die durch UV-Strahlen nicht erreicht werden (so genannte UV-Schatten) wird durch eine häufige Bewegung der zu desinfizierenden Flüssigkeit und der darin enthaltenen Schmutzpartikel und Mikroorganismen gewährleistet. Die ständige und dauerhafte Verhinderung dieser Schattenzonen ist ein Erfordernis, das aus der hohen Vermehrungsgeschwindigkeit von Mikroorganismen resultiert. Das ist nur mit einer sehr häufigen, die Richtung ständig ändernden Bewegung dieser Partikel bei gleichzeitigem Verhindern des Festsetzens der Teilchen an der Innenwand des Geruchsverschlusses zu erreichen.

The prerequisites for a complete and continuous UV germ killing in the sealing liquid of odor traps are:

• 1.) The barrier liquid volume is penetrated in the required intensity for killing by the ultraviolet radiation, preferably with a wavelength between 276 nm and 300 nm.
• 2.) The formation of zones behind dirt particles, which are not achieved by UV rays (so-called UV shadows) is ensured by frequent movement of the liquid to be disinfected and the dirt particles and microorganisms contained therein. The permanent and permanent prevention of these shadow zones is a requirement resulting from the high propagation rate of microorganisms. This can only be achieved with a very frequent, constantly changing direction of movement of these particles while preventing the settling of the particles on the inner wall of the odor trap.

For this purpose, the barrier liquid can be set in motion in various ways. The movement of the barrier liquid can be done mechanically by pumping, stirring, etc. The invention described herein is based on laboratory and practical investigations, in which a fast (for example, 100 Hz), the direction of movement of the barrier fluid, which is caused by a mechanical vibration very often proved to be particularly effective.

• 1. Geruchsverschlüsse, bei denen nur die UV-Bestrahlung zur Desinfektion angewendet wurde, zeigten nach kurzer Zeit eine Belegung der Innenwand des Geruchsverschlusses und – sofern die UV-Strahlungsquelle direkt in die Sperrflüssigkeit eingebracht wurde – auch der Außenwand der UV-Bestrahlungsquelle selbst. Dieser Effekt ist in der Abwasserbehandlung mit UV-Licht (z. B. bei der Behandlung von Deponiesickerwasser) seit langem bekannt und es wurden deshalb eine Reihe von Apparaturen zur Reinigung der Außenwände von UV-Strahlern entwickelt. Die Belegung der Innenwand des Geruchsverschlusses und der Wand der Strahlungsquelle mit mikroskopischen Schmutzpartikeln führt zu verminderter bzw. verhinderter Durchdringung des Geruchsverschluss-Inneren und der Sperrflüssigkeit mit ultraviolettem Licht, so dass das UV-Licht die Sperrflüssigkeit nicht in der für eine verlässliche Desinfektion benötigten Dosis erreicht. Dadurch kommt es zu ungenügender Abtötung von Keimen, wodurch wiederum die Verstärkung der Schleimschicht (Biofilm) erreicht wird. Diese Biofilmbildung führt dann wiederum zur Verminderung der Intensität der UV-Strahlung in der Sperrflüssigkeit, so dass es bei alleiniger Anwendung von UV-Licht nach einiger Zeit zum Funktionsausfall der Desinfektions-Apparatur kommt. Dieser Effekt ist in der Hygienepraxis der Wasserentkeimung mit ultraviolettem Licht bekannt und gefürchtet.
• 2. Bei der Anheftung eines mit Mikroorganismen besiedelten Schmutzpartikels an die Innenwand des Geruchsverschlusses werden Teile des Partikels von der UV-Strahlung nicht erreicht. Es entstehen die in der Desinfektion gefürchteten, so genannten UV-Schatten. Die im UV-Schattenbereich befindlichen Bakterien vermehren sich und gelangen in die freie Sperrflüssigkeit. In der Sperrflüssigkeit wird für die Abtötung der Bakterien mit ultraviolettem Licht eine Zeit von mehreren Minuten, abhängig von der UV-Dosis, benötigt. Wenn innerhalb dieser kritischen Zeit der Siphon benutzt wird, kommt es zur Emission lebender Keime. Die Funktion des Selbstdesinfizierenden Geruchsverschlusses ist somit nicht ständig gewährleistet.
• 3. Die Bestrahlung mit ultraviolettem Licht ohne zusätzliche Einrichtungen der Reinigung führt im Abwasserbereich daher immer zu drei wesentlichen Effekten: 1. zur primären Belegung der Innenwand mit Kalk- und mikrobiell besiedelten Schmutzpartikeln 2. zur daraus resultierenden Bildung von UV-Schattenräumen, in denen sich Mikroorganismen vermehren und 3. damit zur verminderten Abtötung lebender Mikroorganismen in der Sperrflüssigkeit infolge reduzierter ultravioletter Strahlung

According to the results of experimental work in the development of self-disinfecting systems, all technical solutions described so far have the following main functional and technical disadvantages, which lead to a safety risk in the application:

• 1. Odor seals in which only the UV irradiation was used for disinfection, showed after a short time occupancy of the inner wall of the odor trap and - if This effect has long been known in wastewater treatment with UV light (for example, in the treatment of landfill leachate) and it has therefore become a number developed by equipment for cleaning the outer walls of UV lamps. The occupancy of the inner wall of the odor trap and the wall of the radiation source with microscopic dirt particles leads to reduced or prevented penetration of the odor trap interior and the barrier liquid with ultraviolet light, so that the UV light does not reach the barrier liquid in the dose required for a reliable disinfection , This leads to insufficient killing of germs, which in turn the gain of the mucus layer (biofilm) is achieved. This biofilm formation then in turn leads to a reduction in the intensity of the UV radiation in the barrier liquid, so that it comes with the sole use of UV light after some time to malfunction of the disinfection apparatus. This effect is known and feared in the hygiene practice of water sterilization with ultraviolet light.
• 2. When attaching a microorganism-populated dirt particle to the inner wall of the odor trap, parts of the particle are not reached by the UV radiation. The result is the so-called UV shadows, which are feared in disinfection. The bacteria in the UV shadow area multiply and enter the free barrier liquid. In the barrier liquid, a time of several minutes, depending on the UV dose, is needed to kill the bacteria with ultraviolet light. If the siphon is used within this critical time, living germs will be emitted. The function of the self-disinfecting odor trap is thus not always guaranteed.
• 3. The irradiation with ultraviolet light without additional means of cleaning therefore always leads to three major effects in the wastewater sector: 1. for the primary occupancy of the inner wall with lime and microbially colonized dirt particles 2. the resulting formation of UV shadows in which 3. Microorganisms multiply and 3. thus to the reduced killing of living microorganisms in the barrier fluid due to reduced ultraviolet radiation

These factors in turn lead to an initially ineffective efficacy of the disinfection of the odor trap with ultraviolet light and thus completely eliminate the advantages of this disinfection method over heat disinfection.

These adverse effects of using ultraviolet light alone to disinfect liquids or objects in liquids are well known in the hygiene practice and are also an important reason for favoring heat disinfection over ultraviolet light disinfection.

The prevention of the formation of UV shadows is most effective in the low volume of barrier fluid to be treated with a very rapid, directional, constantly changing motion of the fluid mass and thus the particles contained therein. This is accomplished by a mechanical vibration. This prevents, when it is introduced through the wall of the odor trap, by the vibration of the wall of the odor trap and the settling of the particles on the siphon wall. For this purpose, the barrier liquid is vibrated, but the frequency is so low that no nebulization, as it is observed when using ultrasound, occurs.

• 1. keine Austrocknung durch Verdampfen oder Verdunsten
• 2. sofortige Wirkung des ultravioletten Lichtes im Minutenbereich, kein zeitnehmendes Aufheizen bis zum Erreichen der Abtötungstemperatur notwendig.
• 3. ständige Gewährleistung der Funktion des Geruchsverschlusses, insbesondere bei Abflüssen, die mit hoher Feststofffracht beaufschlagt werden, dadurch, dass kein Verstopfung durch thermisches Austrocknen erfolgt.

The continuous disinfection of odor closures with ultraviolet light has other significant advantages over thermal disinfection:

• 1. no dehydration due to evaporation or evaporation
• 2. Immediate effect of ultraviolet light in the minute range, no time-consuming heating necessary until reaching the kill temperature.
• 3. permanent guarantee of the function of the odor trap, especially in the case of drains which are subjected to high solids load, in that no blockage takes place due to thermal drying out.

As technical advantages in the commercial use and the application of ultraviolet radiation, a low tax and regulatory burden is seen. For commercial use of the invention is therefore assumed in UV disinfection with coupled cleaning by mechanical vibration of lower production costs, which in turn can promote the spread of this hygiene measure. In addition, a much lower energy consumption during operation compared to thermodisinfection. For thermal disinfection, up to 20 liters of barrier fluid must be heated to 93 ° C and kept at this temperature every 24 hours for frequently used sinks, whereas only 10-20% of this energy is required for UV disinfection. Another commercial advantage over thermal disinfection is the minimized maintenance effort: Thermal disinfection inevitably promotes calcification due to evaporation losses. Because the Level control by means of silver contacts, which can calcify at different speeds depending on the water hardness - ie not calculable - additional safety measures and signal functions are necessary.

The object of the invention is therefore to describe an odor trap with means for automatic cleaning and disinfection, a so-called self-disinfecting odor trap, which does not have the aforementioned disadvantages of all known in the prior art solutions.

The object of the invention is achieved by the self-disinfecting odor trap to be described below.

The apparatus according to the invention of the self-disinfecting odor trap consists of an odor trap of known type EN 274-1: 2002 (Sink siphon, wall siphon, floor drain, bathtub siphon, odor trap in toilet bowl, trap in pissoire basin, odor trap in hospital sinks) ( 1 ) with at least one source of ultraviolet light ( 2a and 2 B ) and at least one device for generating and transmitting mechanical vibrations ( 3 ), whose controlled interaction with constant and complete sterility of the self-disinfecting odor trap and the barrier liquid contained therein ( 5 ) leads.

Reference to the following embodiments, the invention will be described in more detail.

Embodiment 1

In 1a a self-disinfecting tube odor trap is shown, consisting of an odor trap body ( 1 ), which consists wholly or partly of ultraviolet light permeable material, preferably quartz glass. The source of ultraviolet light is a mercury-vapor lamp (UV lamp) ( 2 B ). This is between the two legs of the odor seal body ( 1 ) and thus allows maximum irradiation and disinfection of the entire barrier fluid ( 5 ).

At the odor seal body ( 1 ) is at least one vibrating cleaner ( 3 ), consisting of a device for generating mechanical vibrations, preferably an electromechanical oscillating magnet, an unbalance motor or an ultrasonic vibrator, mounted so that this vibrating cleaner ( 3 ) the odor seal body ( 1 ) and the sealing liquid ( 5 ), causing both rapid movement of the fluid in the barrier fluid ( 5 Particles and microorganisms with very frequent change of direction and thus the avoidance of UV shadow zones achieved as well as the adhesion of particles to the inner wall of the odor seal body and by detachment of adhesions, the dirt and biofilm formation is prevented and in the case of the use of ultrasonic frequencies additional kill of microorganisms is achieved.

In 1b is a self-disinfecting tube odor trap after 1a shown in addition to a heating device ( 4 ) is equipped to heat the barrier liquid.

Embodiment 2

In 2a is a self-disinfecting tube odor trap, consisting of an odor trap body ( 1 ), which is made of any material, preferably brass or plastic, shown. As sources of ultraviolet light serve one or more UV LED lights ( 2a ). These are so in the odor seal body ( 1 ), that the entire barrier liquid ( 5 ) is irradiated with ultraviolet light.

At the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

In 2 B is a self-disinfecting tube odor trap after 2a shown in addition to a heating device ( 4 ) for heating the barrier liquid ( 5 ) is equipped.

Embodiment 3

In 3a (Side view) and 3b (Top view), a self-disinfecting tube odor trap is shown, consisting of an odor trap body ( 1 ), wholly or partially made of ultraviolet light permeable material, preferably quartz glass. The source of ultraviolet light is an annular mercury-vapor lamp (UV lamp) ( 2 B ). This surrounds the odor seal body ( 1 ) completely and thus allows maximum irradiation of the entire barrier liquid ( 5 ).

At the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

Embodiment 4

In 4a a self-disinfecting bottle odor trap is shown, consisting of an odor trap body ( 1 ) in Bottle mold of any material into which a mercury vapor lamp (UV lamp) serving as source of ultraviolet light ( 2 B ) is introduced so that a maximum irradiation of the barrier liquid ( 5 ) is achieved.

At the bottom or on the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

In 4b is a self-disinfecting tube odor trap after 4a shown in addition to a heating device ( 4 ) is equipped to heat the barrier liquid.

Embodiment 5

In 5a a self-disinfecting bottle odor trap is shown, consisting of an odor trap body ( 1 ) in bottle form of any material, in the wall of which ultraviolet light sources of ultraviolet light ( 2a ) are introduced so that a maximum irradiation of the barrier liquid ( 5 ) is achieved.

At the bottom or on the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

In 5b is a self-disinfecting tube odor trap after 5a shown in addition to a heating device ( 4 ) is equipped to heat the barrier liquid.

Embodiment 6

In 6a (Side view) and 6b (Top view) a self-disinfecting bottle odor trap is shown, consisting of an odor trap body ( 1 ), wholly or partially made of ultraviolet light permeable material, preferably quartz glass. The source of ultraviolet light is an annular mercury-vapor lamp (UV lamp) ( 2 B ). This surrounds the odor seal body ( 1 ) completely and thus allows maximum irradiation of the barrier fluid ( 5 ).

At the bottom or on the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

Embodiment 7

In 7 a self-disinfecting odor trap in the form of a floor drain of known type is shown, consisting of a two-part odor trap body ( 1 ) made of any material. The source of ultraviolet light is a mercury-vapor lamp (UV lamp) ( 2 B ). This is at the bottom of the odor seal body ( 1 ) and thus allows maximum irradiation of the entire barrier liquid ( 5 ) by dipping into them. On the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

The self-disinfecting odor trap in the design of a floor drain can additionally in the upper part with a heat source, preferably an infrared heat source ( 4a ), which provides, if necessary, for a heating of the barrier liquid.

Embodiment 8

In 8th is a self-disinfecting odor trap in the form of a floor drain of known type, consisting of a two-part odor trap body ( 1 ) made of any material. As a source of ultraviolet light ( 2a , and 2 B ) serve both a mercury vapor lamp (UV lamp) ( 2 B ) as well as several UV-LED lights ( 2a ). This mercury vapor lamp (UV lamp) ( 2 B ) is at the bottom of the odor seal body ( 1 ), the UV LED lights ( 2a ) are integrated in the cover of the odor trap in the design of a floor drain. On the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

At least one additional device for generating mechanical vibrations ( 3 ) is mounted in the odor trap cover.

Embodiment 9

In 9 is a self-disinfecting odor trap in the form of a floor drain, consisting of a two-piece odor trap body ( 1 ) made of any material. The source of ultraviolet light is one or more UV LED lights ( 2a ). The device for generating mechanical vibrations ( 3 ) is in this embodiment on the inner cover ( 8th ), which is part of the two-piece odor seal body ( 1 ) is attached.

Embodiment 10

In 10a a self-disinfecting wall odor trap is shown, consisting of an odor trap body ( 1 ) with lateral inlet area ( 6 ). As a source of ultraviolet light Here is a mercury vapor lamp (UV lamp) ( 2 B ).

On the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

In 10b a self-disinfecting wall odor trap is shown, consisting of an odor trap body ( 1 ) with lateral inlet area ( 6 ), As source of ultraviolet light serve here one or more UV LED lights ( 2a ). On the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

The self-disinfecting odor trap in the form of a wall odor trap can additionally be provided in the upper part with at least one heating device ( 4 ), preferably an infrared heating source ( 4a ), which provides, if necessary, for a heating of the barrier liquid.

In 10c a self-disinfecting wall odor trap is shown, consisting of an odor trap body ( 1 ) with lateral inlet area ( 6 ), As source of ultraviolet light serve here one or more UV LED lights ( 2a ).

At least one device for generating mechanical vibrations ( 3 ) is here at the outlet ( 9 ) of the odor closure body ( 1 ) attached.

Embodiment 11

In 11a a self-disinfecting bath or shower tray odor trap is shown in extremely flat design, consisting of an odor trap body ( 1 ) with inlet area ( 6 ). The source of ultraviolet light is a mercury vapor lamp (UV lamp) ( 2 B ).

At the upper side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

In 11b is a self-disinfecting bath or shower tray odor trap in extremely flat design shown, consisting of an odor trap body ( 1 ) with inlet area ( 6 ). The source of ultraviolet light is one or more UV LED lights ( 2a ).

At the lower side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

Embodiment 12

In 12 is a self-disinfecting odor trap in a sink, a so-called hospital or stool sink, shown, consisting of an odor trap body ( 1 ) with inlet area ( 6 ), At least one mercury vapor lamp (UV lamp) is used as a source of ultraviolet light ( 2 B ).

On the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached. The self-disinfecting odor trap in the form of a wall odor trap can additionally in the upper part with at least one heat source, preferably an infrared heat source ( 4a ), which provides, if necessary, for a heating of the barrier liquid.

Embodiment 13

In 13 is a self-disinfecting odor trap shown in a toilet bowl, consisting of an odor trap body ( 1 ) with inlet area ( 6 ), At least one mercury vapor lamp (UV lamp) is used as a source of ultraviolet light ( 2 B ).

On the side wall of the odor seal body ( 1 ) is at least one device for generating mechanical vibrations ( 3 ) attached.

LIST OF REFERENCE NUMBERS

1

Trap body

2a

Source of ultraviolet light, UV LED light

2 B

Source of ultraviolet light, mercury vapor lamp (UV lamp)

3

Device for generating mechanical vibrations

4

heater

4a

Heating source infrared emitter

5

sealing liquid

6

intake area

7

discharge area

8th

cover

9

outlet connection

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 4206901 [0005, 0005]
• US 4192988 [0005]
• DE 4025078 A1 [0005]
• DE 29509210 U1 [0005, 0005]
• DE 2747992 A1 [0005]
• US 3,175,567 [0005]
• DE 4206901 A1 [0005]
• DE 9202902 U [0006]
• EP 1866485 [0007, 0007, 0009, 0012, 0012, 0013, 0014, 0014, 0015, 0016, 0018]

Cited non-patent literature

• Standard EN 274-1: 2002 [0001]
• Döring et al., 1989; Sissoko et al., 2005 [0002]
• DIN 274-1: 2002 [0003]
• Sissoko et al. 2005 [0004]
• Döring et al. (1989, 1991) [0008]
• SISSOKO et al. 2004 a, 2004 b, and 2005 [0009]
• Sissoko et al. 2005 [0010]
• DIN EN 274-1: 2002 [0017]
• EN 274-1: 2002 [0030]

Claims (4)

Self-disinfecting odor trap, characterized in that an odor trap of known type and the barrier liquid contained therein is irradiated and disinfected by at least one source of ultraviolet light and are brought by a device for generating mechanical vibrations of the odor trap body and the barrier liquid therein vibration. Self-disinfecting odor trap according to claim 1, characterized in that the device for generating mechanical vibrations generated mechanical vibrations in a frequency range of 1 to 200,000 Hz and these vibrations are transmitted to the interior of the odor trap and the barrier liquid therein. Self-disinfecting odor trap according to claims 1 and 2, characterized in that the inner wall of the odor trap body is provided with a hydrophobic or antimicrobial coating. Self-disinfecting odor trap according to one of the preceding claims, characterized in that the odor trap is equipped with a device for generating high temperatures inside the odor trap.

Images