AT17829U1 - Ozone sterilizer with subsequent air regeneration - Google Patents

Abstract

The invention relates to an ozone sterilizer with subsequent air regeneration, which consists of a fan (3) mounted in a closed housing (1), at least one suction inlet (4) and discharge outlet (6), a catalyst filter (5), a dust filter (14), a Ozonizer (13), a switching flap (11) with a servo drive (7), a sensor (10), a display element (9) and an operating control unit (8) with an inlet (12) connected to the power supply. A fan (3) is installed in the housing (1) behind the suction inlet (4), above which there is a switching flap (11) with a servo drive (7), behind which an ozonizer (13) under the discharge outlet (6) of the housing ( 1) is mounted. At least one catalytic filter (5) is installed next to the switching flap (11) under the discharge outlet (6) of the housing (1) and behind the dust filter (14). On one of the walls of the housing (1) there is a sensor (10) and an operational control unit (8) with a display element (9), which are separately electrically connected to a fan (3), a servo drive (7), a display element (9) , a sensor (10) and an ozonizer (13) are connected.

Description

Description

TECHNICAL AREA

The technical solution relates to ventilation systems for the sterilization of air, the environment and objects by ozone with subsequent automatic regeneration of the air devalued by ozone by means of a sensor, filtration and catalytic reaction.

STATE OF THE ART

[0002] The polluted atmosphere seriously affects public health. It causes a sudden onset of diseases such as cancer, asthma, allergies or irritations, rhinitis, COVID viruses, SARS and MERS. Since up to 70% of a person's time is spent indoors (in homes, at work, in schools, etc.), atmospheric pollution poses a serious threat to human health. The human immune system defends itself when it encounters these harmful elements and produces an excessive amount of white blood cells, which depletes the human body and compromises health. The consequences of an overloaded immune system are usually fatigue, allergies and diseases.

[0003] Indoor air pollution is usually caused by large, small and gaseous particles. Large particles are carried indoors, particularly on clothing and shoes, or enter indoors through open doors or windows, or possibly through decomposition of building materials, carpets, clothing and sewn materials. They are also a by-product of humans, animals and plants (droplets from particles of dead skin, hair, pollen, etc.). They are also found indoors, created by human activities such as vacuuming, cutting, grinding, cooking, baking or powder application and the like.

[0004] Small particles are carried and blown into rooms in the form of smoke, pollen, bacteria, viruses, spores, fungi and the like. They are also caused by smoking, cooking, burning wood in fireplaces and fireplaces, candles, etc.

[0005] Gas particles are present in the air in the form of molecules (formaldehyde, odours, benzenes, phthalates...) carried by the flow of people, temperature or pressure changes. They are created through the release of materials and human activity.

Are known filter devices that can not filter out living pathogens, very small mechanical particles and gaseous impurities when using a filter cloth coarse impurities.

Other well-known devices can filter fine and coarse particles but not gases by means of an electrostatic effect. In addition, they generate ozone harmful to human health, which remains in the target room. Therefore, they are mainly used in industry to filter the airflow from rooms where workers stay in protective masks.

Devices are also known which eliminate a variety of living pathogens (bacteria such as Salmonella, E. coli, Clostridium, Cryptosporidium, cysts, HIV virus, herpes virus, type A jaundice, rotavirus and many other microorganisms, viruses, fungi, mites, insects, rodents and toxic substances contained in building materials) and also eliminate odors in the air and from the surfaces of various objects, since ozone also Removes fumes from organic substances such as thinners, petrol, paints, inks, oils - natural and synthetic, smells of cigarettes, etc. Unlike complex chemicals, ozone is biodegradable into pure oxygen, so it does not leave toxic waste or contaminate the environment, but has no effect on other large and small particles in the air. However, above a certain concentration, ozone is life-threatening and off

for this reason, after ozone application, the room needs to be ventilated for a long time. Such devices are placed in an elevated place, the ozonation period is set, and the room is left. Then an ozone disinfection takes place. At the end of the set time, the device switches off. However, due to the lack of ozone sensors, it is not clear when the ozone concentration is no longer harmful and one can enter the room. Therefore, it is recommended to enter the room normally only after 6 to 24 hours, wearing protective equipment (masks), while the residual ozone from disinfection must be thoroughly ventilated.

Various devices described below are also known, which combine several of the aforementioned methods.

It is a technical solution according to DE19902825A1, which relates to a reactor for the decomposition of ozone (Os), the z. B. is formed in photocopiers, UV sterilizers and similar electrical equipment. The solution is also intended to remove Os from indoor air (e.g. from Os-sanitized pools) by introducing Manganese Dioxide (MnO>») and/or Lead Oxide (PbO») and/or a similar catalyst used to catalytic conversion of ozone to oxygen (O») in air conditioning and ventilation systems. The disadvantage of the technical solution is that it does not allow cleaning of mechanical contamination and entry into the disinfected room without a protective mask.

A known technical solution is also patent KR20039965. This is a sterilizer for air purification. The air goes outside through this sterilizer, through a photocatalytic filter and a UV lamp, for the purpose of its sterilization and odor removal. When the ozone is absent, the sterilizer sterilizes and purifies the air or the air e.g. in an automobile, being able to sterilize by ozone the bacteria adhering to objects. The sterilizer consists of an ozone generation module with a safety device located on one side of the air outlet, an anion generation module located on the other side thereof, and an operation knob unit that electrically connects the ozone generation module and the ozone sensor. It includes a high-capacity battery, portable in a vehicle, for example, and a motor-driven fan. The disadvantage of this technical solution is its constructive complexity and that after the set ozonation time (due to the lack of ozone sensors) it is not clear when the ozone concentration is safe for human entry. Therefore, it is recommended to enter the room normally only after more than 6 hours or in protective gear. The remaining ozone from the disinfection must then be thoroughly aerated.

According to US2005207951A1, an apparatus for efficiently deodorizing or sterilizing a space contaminated by a virus, bacteria, fungus and the like above a reference value without adversely affecting the human body is known. The present invention includes an ozone generation unit subjected to ON/OFF control, a control unit for controlling a variety of safety devices affecting the effective control of the ozone concentration in the target room, a functional air filter unit with air purification and residual ozone removal function, and an air circulation fan in the target area. According to the present invention, viruses, bacteria and fungi floating in the air and odors can be removed more efficiently than with a conventional air purifier. The disadvantage of such a technical solution is its structural complexity.

Furthermore, according to JP2013188447A, the sterilization of food or similar products in conventional factories using organic acids in operation is known. With such a long-term operation, however, resistant bacteria or the like substances, and dust and bacteria appear in the atmosphere deposited on the air filter, circulating in the air in the room, whereby such bacteria grow and lead to secondary contamination. An air filter for solid dust particles is built into the sterilizer, which also has a sterilizing effect. Dust and bacteria from the atmosphere settle on the air filter. The deposited bacteria are further sterilized by the sterilizing action of an air filter.

The clean air passed through the air filter is mixed with ozone and sprayed by rotating the outlet port 360 degrees to sterilize the airborne bacteria and adhesive bacteria. The disadvantage of this technical solution is its technical complexity and that it requires a continuous small air circulation, which makes it suitable only for cleaning the air with low bacterial contamination.

The common disadvantage of all the above technical solutions is that they do not allow the removal of coarse and fine particles and at the same time do not remove the viruses, bacteria and spores from the air and from the surfaces of materials without ventilation and human Use in protective masks are required.

From utility model CZ 34 173 U1 an ozone sterilizer with air regeneration is known, in which a fan is mounted in an airtight housing, which is electrically connected to the operation control unit through a supply, which is further connected to a power supply and a display element. At least one UV emitter is located below the fan ejector in the housing above the electrostatic precipitator and a dust filter is located behind the electrostatic precipitator behind at least one of the suction inlets. In the outlet part of the fan, behind at least one exhaust gas outlet, sensor and gas filter, there is a catalyst filter in the housing, in which a switching flap with an actuator is installed. The sensor is electrically connected to the fan, the electrostatic filter, the UV lamp and the actuator via an operating control unit. Such a device is technically too complex, is large and is used for relatively expensive and technically complex efficient multi-purpose ozone sterilization in large rooms with subsequent regeneration of air, which also contains harmful gaseous particles.

BRIEF DESCRIPTION OF THE INVENTION

These deficiencies are eliminated by an ozone sterilizer with subsequent air regeneration, which consists of an air fan mounted in a closed housing, at least one inlet and outlet, a catalyst filter, a dust filter, an ozonizer, a servo-driven switching valve, a sensor, a display element and an operation control unit with inlet connected to the power supply. The principle of the technical solution is that a fan is mounted in the housing behind the suction inlet, above which there is a servo-driven switching damper, behind which an ozonizer is mounted under the discharge outlet of the housing. At least one catalytic filter is installed next to the switching flap under the outlet of the housing and behind the dust filter. On one of the walls of the case there is a sensor and an operational control unit with an indicator element, which are separately electrically connected to a fan, servo drive, indicator element, sensor and ozonizer. It is advantageous if the housing is equipped with at least one swivel wheel. It is also advantageous if the plant control unit is remotely connected to a router. The router is equipped with wireless remote control with feedback.

The aim of the technical solution is to remove large and small harmful particles from the indoor air and at the same time viruses, bacteria, spores, etc. from the surfaces with a technically simple ventilation device and in the shortest possible time intervals without people present and without the necessary ventilation process.

At the same time, it should be prevented that people and animals are threatened by residual gases from the ozonation. BRIEF DESCRIPTION OF THE DRAWING FIGURES

Concrete examples of embodiments of an ozone sterilizer with subsequent air regeneration according to the technical solution are shown in the accompanying drawings. Show it:

1 shows a vertical cross-section of an ozone sterilizer with subsequent air regeneration,

Figure 2 is a side sectional view A-A of the device of Figure 1;

3 shows a vertical cross-section of an ozone sterilizer with subsequent air regeneration with the flow direction of the cleaned air shown in FIG. 2 with the switching flap closed,

4 shows a vertical cross section of an ozone sterilizer with subsequent air regeneration with the flow direction of the cleaned air shown in FIG. 2 with the switching flap open,

Figure 5 shows the functional electrical distribution and air flow of the ozone sterilizer with subsequent air regeneration and

Figure 6 shows the functional electrical distribution and air flow of the ozone sterilizer with subsequent air regeneration using a router and wireless remote control for remote control of the device by infrared radiation or radio signals.

DESCRIPTION OF THE TYPES OF EXECUTION

The drawings showing the technical solution presented and the examples of a specific embodiment described below in no way limit the scope of protection indicated in the claims, but only explain the principle of the technical solution.

In the basic embodiment, the technical solution is shown in FIGS. 1-5. The ozone sterilizer with subsequent air regeneration in the basic embodiment shown consists of a housing 1, which is equipped with four rotating wheels 2, a fan 3 with a lower inlet and upper outlet, a suction inlet 4 and a discharge outlet 10, these being connected by a non marked commonly used wall grille are completed. Next, the device consists of two catalytic filters 5, z. B. formed of a catalyst based on MnO» + CuO in the framework, a dust filter 14, formed e.g. B. from a filter cloth G4 according to EN779, which is mounted in the frame, etc. Further it consists of the ozonizer 13, i. H. Ozone generator (Os), e.g. B. in the form of a plasma and / or ultraviolet emitter, z. B. formed from a product of the UV-FAN type series, from a switching damper 11 with servo drive 7 and from a combined sensor 10 for temperature, humidity, CO2 content and ozone content of the treated air, further from a display element 9, an operating control unit 8 with an inlet 12 connected to the power supply, preferably e.g. B. to a standard electrical network with AC voltage of 230V/ 50HZ.

In the housing 1 behind the suction inlet 4, a fan 3 is mounted, above which there is a switching flap 11 with a servo drive 7, behind which an ozonizer 13 is mounted under the discharge outlet 6 of the housing 1. At the same time, a pair of catalytic filters 5 are installed at an acute angle to each other next to the switching flap 11 under the discharge outlet 6 of the housing 1 and behind the dust filter 14 . On opposite walls of the housing 1 there is a sensor 10 and an operation control unit 8 with an indicator 9, which are separately electrically connected to a fan 3, a servo drive 7, an indicator 9, a sensor 10 and an ozonizer 13.

In the initial position, the device is transported on the wheels into the cleaned target exterior, e.g. B. in a room that needs to be disinfected. It is then checked whether the room is free of people, animals, plants. 4 and 5, the ozone sterilizer is operated by an instruction from the operation control unit 8, followed by air regeneration. This is done after their connection to the power supply 12 and after mechanical adjustment of the operating time by operators either directly or via a non-displayed start timer. Either the manually set time or the automatic air cleaning cycle of the ozonizer 13 is activated, which is controlled by control signals from the combined sensor 10 after the device start, i. H. in the period up to this

determines that a value in the cleaned target exterior of ozone sterilizer with air regeneration, e.g. B. Temperature, humidity, CO2 content and ozone content is outside the set reference concentration. Then the cleaned target exterior is locked during the cleaning.

During cleaning, the operating control unit 8 simultaneously activates the fan 3 and the ozonizer 13 from the starting position via the servo drive 7 by means of an electrical command (current), the servo drive 7 opening the switching flap 11 - see Fig. 1 and Fig. 4 The cleaning of the polluted air in the target outdoor space is carried out by sucking the air by means of the fan 3 through the air inlet 4 and the ozonizer 13, where the viruses, bacteria and spores are eliminated by the ozone and the thereby cleaned air is discharged through the discharge outlet 6 into the Target exterior reached. During such a cleaning cycle, the sensor 10 reads the values of temperature, humidity, CO2 level and ozone level in the air. The measured values are displayed by the display element 9 and evaluated with their reference value set by the control program in the form of a recommendation to the operating personnel. At the end of the set cleaning time or after this ozone reference value has been reached in the target exterior, the sensor 10 in the operating control unit 8 switches the ozonizer 13 off with an electrical command (current) while the fan 3 is running. In both cases, the servo drive 7 is activated, which closes the switching flap 11 - see Fig. 1 and Fig. 3. The air path in the ozone sterilizer is thereby changed by the servo drive 11 to the subsequent air regeneration. Then, the high ozone intake air continues from the inlet 4 through the dust filter 14 and the discharge outlet 6 to the cleaned target outdoor space as long as an appropriate health-safe oxygen concentration is reached in the target outdoor space. After reaching this value, the sensor 10 in the operating control unit 8 activates the servo drive 7 by an electrical command (current), which opens the switching flap 11 - see Fig. 1 and Fig. 4. As a result, it also stops the operation of the fan 3, and the The operating control unit 8 indicates this fact to the operator visually and/or acoustically in the display element 9, as a result of which the device is ready in the starting position in the cleaned target exterior.

Another embodiment of the subject of the technical solution is alternatively shown in fig. In addition to the exemplary embodiment described above, this embodiment includes an operation control unit 8 connected through a router 15 to a wireless remote controller 16 for remotely controlling the device by infrared radiation or radio signals.

In the initial position, the device is transported on the wheels into the cleaned target exterior, e.g. B. in a room that needs to be disinfected. It is then checked whether the room is free of people, animals and plants. The target exterior is locked during its cleaning, and by means of the wireless remote control 16 via the router 15 its operational control unit 8 is started. The operating control unit 8 simultaneously activates the fan 3 and the ozonizer 13 from the starting position via the servo drive 7 by an electrical command (current), the servo drive 7 opening the switching flap 11 - see Fig. 1 and Fig. 4.

The cleaning of the polluted air in the target outdoor space is carried out by sucking the air by means of the fan 3 through the air inlet 4 and the ozonizer 13, where the viruses, bacteria and spores are eliminated by the ozone and the thereby cleaned air through the discharge outlet 6 entered the target area. During such a cleaning cycle, the sensor 10 reads the values of temperature, humidity, CO2 level and ozone level in the air. The measured values are displayed by the display element 9 and evaluated with their reference value set by the control program in the form of a recommendation to the operating personnel. After this ozone reference value has been reached in the target outdoor area, the sensor 10 in the operating control unit 8, with the fan 3 running, uses an electrical command (current) to activate the servo drive 7, which closes the switching flap 11 - see Fig. 1 and Fig. 3. The air path changed in the ozone sterilizer from the servo drive 11 to the subsequent air regeneration. Then the high ozone intake air continues from the inlet 4 through the dust filter 14 and the discharge outlet 6 to the cleaned target outdoor space until a suitable health-safe oxygen concentration

ration is reached in the target outside space. After this value has been reached, the sensor 10 in the operating control unit 8 activates the servo drive 7 by electrical command (current), which opens the switching flap 11 - see Fig. 1 and Fig. 4. This stops the operation of the fan 3 and the operating control unit 8 shows this fact to the operating personnel in the display element 9 and via router 15 also in the remote control 16 visually and/or acoustically, whereby the device is ready in the starting position in the cleaned target exterior.

The described and illustrated embodiments are not the only possible embodiments of the technical solution, since the housing 1 can be equipped with a different number of rotating wheels 2 (not shown) or without wheels 2. The dust filter 14 can be equipped with a different filter cloth or a multi-layer of different fabrics. The catalytic filter can have another shape, e.g. a conical shape or the shape of a truncated cone or a hemisphere or a horizontal or an inclined surface, or it may be constituted by at least one discharge outlet 6 in the form of a block. Fan 3 may have a different construction, with its discharge part and switching flap 11 having a different shape and position, as shown. The central suction pipe of the production machines can also be routed directly into the air, etc., through an ozone sterilizer with subsequent air regeneration.

COMMERCIAL APPLICABILITY

The ozone sterilizer with subsequent air regeneration according to the technical solution is versatile in various closed spaces intended for cleaning the air from harmful substances, odors, viruses, bacteria and the like, such as. B. in military buildings and means of transport, in rooms, halls, hospitals, waiting rooms, conference and production halls, offices, schools, in passenger transport such. in airplanes, ships, trucks and cars, long-distance and urban public transport, etc. This technical solution can also be used to clean the surfaces of objects with ozone and subsequently remove harmful substances on their surface without the presence and intervention of people and operators to remove.

REFERENCE LIST

1- casing (of the ventilation system)

2- swivel wheel

3- fan

4- Suction inlet (aerodynamic)

5- Catalytic filter (based on MnO2 + CuO)

6- discharge outlet (air technical)

7- servo drive

8- Operating control unit

9- Indicator

10- Sensor (temperature, humidity, CO2 level and

ozone content) 11- switching damper (air-technical routing) 12- inlet

13- Ozonizer (ozone generator (Os), e.g. in the form of a plasma and/or ultraviolet emitter)

14- Dust filter (filter cloth G4 according to EN779 with frame)

15- Router

16- Remote control with feedback (for remote control of the device by infrared radiation or radio signals)

Claims (3)

Expectations 1. Ozone sterilizer with subsequent air regeneration, consisting of a fan (3) mounted in a closed housing (1), at least one suction inlet (4) and discharge outlet (6), a catalyst filter (5), a dust filter (14), an ozonizer ( 13), a switching flap (11) with a servo drive (7), a sensor (10), a display element (9) and an operating control unit (8) with an inlet (12) connected to the power supply, characterized in that in the housing (1 ) behind the suction inlet (4) a fan (3) is mounted, above which there is a switching flap (11) with a servo drive (7), behind which an ozonizer (13) is mounted under the discharge outlet (6) of the housing (1). that in addition to the switching flap (11) under the discharge outlet (6) of the housing (1) and behind the dust filter (14) at least one catalytic filter (5) is installed, and that on one of the walls of the housing (1) is a sensor (10) and an operating control unit (8) with a display element (9), which are separately electrically connected to a fan (3), a servo drive (7), a display element (9), a sensor (10) and an ozonizer (13 ) are connected. 2, ozone sterilizer with subsequent air regeneration according to claim 1, characterized in that the housing (1) is equipped with at least one swivel wheel (2). 3. Ozone sterilizer with subsequent air regeneration according to claim 1 or 2, characterized in that the operating control unit (8) is remotely connected to a router (15) with a wireless remote control (16) with feedback. 5 sheets of drawings