WO2023198593A1

WO2023198593A1 - Air conditioning system for purifying air in buildings

Info

Publication number: WO2023198593A1
Application number: PCT/EP2023/059149
Authority: WO
Inventors: Fahmi YIGIT
Original assignee: Virobuster International Gmbh
Priority date: 2022-04-14
Filing date: 2023-04-06
Publication date: 2023-10-19
Also published as: EP4261467A1

Abstract

The invention relates to an air conditioning system (10) for purifying air in buildings, in particular residential buildings, office buildings, administrative buildings and/or industrial buildings. Said air conditioning system comprises at least one cyclone separator (7) for separating solid and/or liquid particles from a gaseous medium, in particular air, and at least one irradiation device (1), which is associated with the cyclone separator (7), for the UV irradiation, in particular the UV-C irradiation, of the gaseous medium, in particular air, flowing through the irradiation device (1), preferably for inactivating microorganisms present in the medium, such as bacteria, pathogens, mold and/or viruses.

Description

Air conditioning system for air purification in buildings

The present invention relates to a ventilation system for air purification in buildings, in particular residential, office, administrative and/or industrial buildings. Furthermore, the present invention relates to the use of a ventilation system for air purification in buildings, in particular residential, office, administrative and/or industrial buildings.

Air conditioning systems can also be referred to as air conditioning systems or ventilation systems. Air conditioning systems are systems that influence the condition of the room air in terms of temperature, humidity and/or air quality. In addition, air conditioning systems are used to ensure air exchange in rooms of buildings or in buildings, whereby thermal treatment of the air should also take place if necessary.

If necessary, an air conditioning system has a so-called outside air intake, so that (fresh) outside air is supplied to the system as an alternative or in addition to the air present inside the building. In addition, the air conditioning system is used to remove polluted or used room air and, if necessary, clean it.

The tasks of air conditioning systems can vary with regard to different possible uses. In addition to ventilation, it is also known in the prior art that air conditioning systems are used for air conditioning or thermal treatment of the air. Furthermore, the air conditioning system can meet high air quality requirements, especially if the system is used to provide so-called clean air rooms or clean rooms. The ventilation system can also be used to separate certain hazardous substances and thus increase safety in the respective building.

If necessary, the air conditioning system is also used to reduce the contamination of so-called "biological substances", such as viruses and/or germs (particularly mold and bacteria), but also particles such as pollen, (fine) dust and/or smoke in the building reduce, especially by filtering the air and/or treating it with outside air. If a filter is used in the air conditioning system, regular maintenance of the air conditioning system is required. If outside air is not added and no filter is used, the virus, germ and/or dust load in the building will continually increase, which can endanger the people in the room and cause illness. Conventional building filters, for example to reduce dust loads, are widely used, but in particular they cannot safely separate viruses.

Therefore, air filtration for viruses is based on so-called HEPA filters, which can also separate biological substances. The main advantage of HEPA filters is that they can handle the filtering task through a relatively simple mechanical and technical structure. The disadvantage is that in order to ensure good filter performance, they generate high air resistance (pressure drop) and thus high energy consumption and the HEPA filters require complex and professional maintenance. A further disadvantage is created by the fact that the biological substances are “captured”, but not deactivated or killed. The resulting consequence is that these biological substances multiply on the surface of the filter and form a so-called "filter cake", which can lead to the formation of mVOCs (microbial volatile organic compounds). This is then perceived, for example, as a “musty” smell from an air conditioning system. Mechanical filters are therefore the main cause of PAQ (Perceived Air Quality).

To avoid these technical disadvantages and the costs caused by PAQ, it is recommended to use air disinfection devices as an alternative, in which the biological substances are not captured, but are treated by radiation, especially UV-C radiation.

The UV-C radiation eliminates the reproductive potential of the biological substances, so that they are no longer infectious.

The object of the present invention is to improve air purification in air conditioning systems and/or to simplify the handling of air conditioning systems.

The aforementioned task is achieved by a ventilation system according to claim 1. The ventilation system according to the invention has at least one cyclone separator for separating solid and/or liquid particles of a gaseous medium, in particular air, and at least one irradiation device assigned to the cyclone separator for UV irradiation, in particular UV-C irradiation, of the gaseous medium flowing through the irradiation device, in particular air, up. The UV irradiation device is designed in particular to inactivate microorganisms located in the medium, such as bacteria, germs, mold and/or viruses.

A ventilation system (RLT system) is understood to mean, in particular, an RLT system in accordance with DIN 1946 (as of April 2023). DIN 1946 is made up of several parts in which air conditioning systems for different applications are defined or specified in terms of their requirements. In particular, the RLT system according to the invention is intended for installation in air building cleaning systems,

Accordingly, an air conditioning system in the sense of the present invention is preferably not to be understood as a mobile stand-alone device (also called a secondary air device), which can be used in a particularly mobile or transportable manner in a room for air purification of the air present in the room. The air conditioning system is therefore neither mobile when assembled nor transportable (when installed).

Indoor air conditioning systems are assigned to the technical field of air technology, which is divided into indoor air technology and process air technology in accordance with DIN 1946 (as of April 2023). RLT systems belong to the area of air conditioning (ventilation), which in turn is divided into free ventilation systems and air conditioning systems. There are air conditioning systems for different applications and with and without ventilation function. A main function of air conditioning systems is to supply living and/or work rooms with breathing air that is free of viruses and/or bacteria. In particular, air conditioning systems can also be referred to as ventilation systems, which can be used in the ventilation systems of office buildings or larger residential buildings. The air conditioning systems are usually not located in one room, but are integrated into the ventilation system as such. In air conditioning systems, outside air is preferably added and/or supplied to the ventilation system. In particular, the RLT system can be designed to enable air exchange, with polluted room air being removed, preferably continuously, and in particular outside air (also referred to as fresh air) being supplied.

Furthermore, air conditioning systems can fulfill different tasks - for example, for ventilation and/or air conditioning of rooms, but also, if necessary, for extracting hazardous substances. Air conditioning is understood to mean, in particular, heating, cooling, humidifying and/or dehumidifying the room air.

Air conditioning systems are preferably operated only with outside air or with a portion of recirculated air in addition to the outside air - in so-called mixed air mode - the subsequently processed air can then be made available to the rooms. If necessary, air conditioning systems can also only be operated with recirculated air, although this is usually an exception. The recirculated air can be taken in particular from the exhaust air, which is preferably taken from the rooms. The portion of the exhaust air that is not fed back into the ventilation system via recirculated air and is released to the outside is called exhaust air.

The ventilation system according to the invention differs from the prior art in that it has both a cyclone separator and an irradiation device for UV irradiation. A medium flows through the ventilation system. The medium can in particular be composed partly of air located in the building and of outside air or only of air located in the building. This medium or this medium stream is treated in the ventilation system, namely passed through both the cyclone separator and the irradiation device. This means that the medium stream is processed and in particular solid and/or liquid particles are removed by the cyclone separator and microorganisms in the medium stream are inactivated by the irradiation device.

The terms “medium flow” and “medium” are used in particular synonymously within the meaning of the present invention, it being understood that the medium, in particular air, flows through the RLT system, whereby the medium in the system forms the medium flow. The cyclone separator enables the ventilation system to operate continuously, in particular without the need for maintenance. The cyclone separator also makes it possible to avoid a filter in the ventilation system, so that regular filter replacement is no longer necessary. The cyclone separator can be operated in such a way that the separated particles are continuously removed. It is not absolutely necessary that these separated particles have to remain in the cyclone separator, although this is provided for in a filter. With a (HEPA) filter, the mechanical resistance (pressure drop) and thus the energy consumption of the fan, which has to be constantly readjusted, increases steadily over the period of use. This is not the case with a cyclone separator. Although the efficiency or degree of separation of the cyclone separator does not increase as the period of use increases, it can be adjusted by making changes (particularly during operation) in the geometry or the geometric conditions. For example, this adjustment can change the operation of the cyclone separator by changing the angle of the impeller or by changing the geometry of the outlet pipe.

With filters, it can also happen that particles that are “caught” in the filter or that were initially filtered out unintentionally escape again. This cannot be done with a cyclone separator due to the separation principle of the cyclone separator.

It is not known in the prior art to use cyclone separators in a ventilation system, in particular an air conditioning system. As a rule, cylindrical separators are used in the process industry because dust is required to be separated in the process lines or because these dusts are to be prevented from escaping into the environment via a chimney.

According to the invention, cyclone separators enable a continuous removal of the particles from the medium flow to be guaranteed. Particularly in combination with the irradiation device, the particular advantage is achieved that the irradiation device can also be operated continuously. The irradiation device can be used to inactivate microorganisms in the medium that have not been separated by the cyclone separator, for example. This contributes to increased air purity. A further advantage of the systems according to the invention is that, in contrast to mechanical filters, the irradiation device used can be switched on and off as required. The cyclone separator would ensure the required standard, the so-called medium-care air quality. By switching on the irradiation device, the medium-care air quality can be increased to a high-care air quality, in particular without having to build up an additional mechanical pressure drop. Both for classic filter-based RLT systems and for a version according to the invention, a subsequent installation of a HEPA filter device is not possible without great effort - however, in the case of the integration of an irradiation device according to the invention, the additional use of an additional fan (booster fan) is not necessary, since the total pressure drop does not increase.

A cyclone separator is a mass force separator that can separate solid or liquid particles contained in gases, in particular for the treatment of air. Alternative names for the cyclone separator are centrifugal separator or vortex separator. The separation process on which the cyclone separator is based exploits centrifugal forces of the particles in the medium flow, which arise when a vortex flow is generated. This vortex flow can in particular also be generated within the cyclone separator and contributes to the removal of the particles separated by the cyclone separator. Basically, a distinction can be made between tangential cyclone separators and axial separators. The distinction is based on the tangential or axial supply of the medium stream loaded with the particles to the rotationally symmetrical separation space or cyclone housing. In both types of cyclone separator, the particles that can be separated by the cyclone separator are transported to the wall of the cyclone housing.

The irradiation device particularly enables so-called UV disinfection. The term “UV disinfection” refers to a process in which microorganisms - which can also be referred to as microbes - can be killed or inactivated by treatment with UV radiation. UV disinfection in the sense of the present invention can be used for exhaust air treatment. This means the air can be kept “clean” or “pure”.

For the purposes of the present invention, UV-C radiation is understood to mean radiation with a wavelength between 100 nm and 280 nm, in particular where: As part of UV disinfection, UV-C radiation is used at a wavelength between 200 nm to 280 nm, preferably between 240 nm to 280 nm.

UV disinfection uses in particular a wavelength of UV radiation between 200 and 300 nm, whereby any individual value within the specified interval is fundamentally possible. The UV radiation emitted has a bactericidal effect - that is, it is absorbed by the DNA and/or RNA and forms thymine (DNA) or uracil dimers. Reproduction of the genetic material or multiplication is therefore no longer possible. Microorganisms such as viruses, bacteria, yeasts and fungi can be rendered harmless with UV radiation within a very short time, especially within a few seconds.

If the irradiance is sufficiently high, the UV disinfection according to the invention is a reliable and ecological method, since in particular no addition of further chemicals is necessary. It is particularly advantageous that microorganisms cannot develop resistance to UV radiation. Ultimately, UV radiation can also interrupt the reproduction of microorganisms, which in particular can prevent contamination of food or infection in people or animals.

The process of UV disinfection can also be referred to as “Ultraviolet Germicidal Irradiation” (UVGI) and/or as microbial disinfection, in particular using UV radiation with a wavelength of 254 nm. The use of UV disinfection is particularly advantageous for virus inactivation in air purification, since the invention makes it possible to free large volumes of air from viruses.

The combination of the cyclone separator and UV disinfection according to the invention also makes it possible to treat a large amount of air. On the one hand, compared to the state of the art, the air speed in the entire system can be increased by doing without filters and, above all, by doing without a HEPA filter. When using filters, the air speed is usually limited to flow speeds of less than 2.5 m/s. According to the invention, a higher flow speed can now be guaranteed, which also enables larger volumes to be treated in the same time compared to the prior art. Furthermore, the residence time in the ventilation system according to the invention can also be reduced compared to the prior art, which also contributes to increasing efficiency. The invention thus enables economical, efficient cleaning of the medium flowing through the ventilation system.

In a particularly preferred embodiment it is provided that the cyclone separator has a cyclone housing through which the medium can flow. The cyclone housing can have a first inlet with which the medium flow or at least a part of the medium flow is fed to the cyclone separator. Furthermore, the cyclone housing can have a particle outlet for the particles separated from the medium flow through the cyclone separator. A plurality of particle outlets can also be provided. In addition, the cyclone housing has at least one gas outlet for the medium flow that is at least essentially free of particles.

A removal device for, preferably continuous, removal of the separated particles can be assigned to the particle outlet. The removal device can use a transport medium, such as water and/or air, to transport the separated particles. The transport medium can flow through the discharge device and thus entrain the particles emerging from the particle outlet. The flow of the transport medium can be provided via a fan arranged in the discharge device. The separated particles can then be transferred to an appropriate collecting container or into the channel or the like. If a non-continuous removal device is to be used, the removal device can have a collecting container, such as in particular a container and/or bag, which must be emptied at regular intervals.

The particle outlet and the gas outlet are preferably arranged in the cyclone housing in such a way that the air treated by the cyclone separator or the medium stream treated by the cyclone separator can exit the cyclone separator from the gas outlet, the particle outlet enabling the particles to be removed, in particular continuously. It goes without saying that the cyclone separator does not necessarily have to separate all the particles contained in the medium flow. However, at least some of the particles, usually the majority, namely more than 50% of the particles of the fed medium stream, are separated by the cyclone separator. Some embodiments of the present invention may provide variability in the geometric relationships or (angular) arrangement of components of the system, such as Blade angles of the cyclone separator or turbine, which can increase or decrease the efficiency of the systems.

Furthermore, in a further preferred embodiment of the inventive concept, it is provided that the irradiation device has a housing having a housing inlet and a housing outlet for the medium. In addition, the irradiation device has at least one radiation source arranged inside the housing and emitting UV radiation, in particular UV-C radiation, for irradiating the medium flowing through the housing. In particular, the aforementioned air disinfection can be carried out by the irradiation device for UV radiation, which enables a high degree of purity of the medium flow treated by the ventilation system.

In a further preferred embodiment it is provided that the first inlet and/or the housing outlet is designed to be arranged on at least one pipe and/or hose, in particular an air pipe and/or air hose. This can ensure that the air conditioning system can be arranged on existing ventilation systems. Ventilation systems for buildings and/or production halls and/or storage facilities contain pipes and/or hoses to transport the air.

Furthermore, at least one radiation source can emit UV radiation in a wavelength range of at least 240 to 300 nm, preferably in a wavelength range of 250 to 285 nm, more preferably of 270 to 280 nm and in particular of 254 nm +/- 10% and/or of 278 nm +/- 10%, emit. In particular, a high level of virus inactivation can be achieved with UV-C radiation with a wavelength of 254 nm +/- 10% or 278 nm +/- 10%. According to the invention, UV radiation with a wavelength of the aforementioned magnitude enables the killing or inactivation of the microorganisms in the medium stream.

As explained above, the ventilation system can preferably be operated without a filter, in particular without a HEPA filter, and/or the ventilation system is filterless, preferably without a HEPA filter. The special thing about the RLT system according to the invention is that the cleaning performance of the air, which in practice is carried out by a filter, in particular the separation of so-called biological substances, such as bacteria, viruses, mold and / or fungi, is carried out in the RLT system according to the invention by the irradiation device can be at least essentially completely ensured. To purify the air, the In contrast to air conditioning systems known from the prior art, a filter or HEPA filter is no longer required. This results in the significant advantage that there is no need for regular replacement and/or maintenance of the filter, in particular the HEPA filter. The overall efficiency of operating an air conditioning system can therefore be increased.

The irradiation device is preferably connected upstream and/or downstream of the cyclone separator, in particular in the flow direction of the gaseous medium stream or the medium stream and/or in the process direction. Alternatively or additionally, it can also be provided that the irradiation device is at least partially integrated into and/or arranged in the cyclone separator. The gas outlet can preferably open into or form the housing inlet. Alternatively or additionally, it can be provided that the housing inlet is arranged in the gas outlet. The downstream arrangement of the irradiation device has the advantage that the medium supplied to the irradiation device is already freed from the particles separated by the cyclone separator. These deposited particles no longer need to be treated in the irradiation device.

In principle, however, it can also be provided that the irradiation device is arranged in the flow direction in front of the cyclone separator, so that the cyclone separator can be supplied with a medium stream that has already been subjected to UV disinfection.

The combination of upstream and downstream irradiation devices is also possible.

In addition, in a further preferred embodiment it is provided that a dip tube of the cyclone separator having the gas outlet is provided for discharging the medium flow from the cyclone housing. In this context, it is understood that in particular the medium flow discharged through the dip tube is at least partially, preferably completely, freed from the particles separated by the cyclone separator or reduced by these particles. In particular, the immersion tube can form and/or have the housing inlet of the housing of the irradiation device. Preferably, the irradiation device can also be at least partially and/or completely in the Immersion tube can be arranged. Ultimately, it can alternatively or additionally be provided that the dip tube connects the cyclone separator to the irradiation device.

Particularly preferably, it is provided that the depth of the dip tube protruding into the cyclone housing can be changed and/or adjusted. By changing the depth of the dip tube protruding into the cyclone housing, the degree of separation of the particles and/or the amount of air to be removed can also be changed. Ultimately, the depth of the dip tube can be adjusted depending on the desired use.

The cyclone separator is preferably designed as an axial separator and/or direct current separator. The design of the axial separator has already been described previously. A direct current separator is to be understood as a separator in which the incoming and outgoing flows run in the same direction, in particular without flow reversal. A direct current separator can in particular enable a compact design, whereby a low pressure loss can be ensured with regard to the direct current principle of the cyclone separator.

In a further preferred embodiment, the cyclone separator has a swirl generator for generating rotation of the medium. In particular, the swirl generator is designed in such a way that a vortex flow of the medium flow in the cyclone separator can be ensured. The swirl generator is preferably arranged in the cyclone housing. In particular, the swirl generator can have a plurality of deflection legs or blades, which are preferably rotatable. The rotary generator is preferably designed to be rotatable and/or adjustable. The swirl generator can also be referred to as an axial guide vane apparatus, which narrows the free cross section of the cyclone housing in the area containing the swirl generator. The swirl generator can therefore provide the eddy flow required to operate the cyclone separator, which leads to the separation of the particles. Integration into the cyclone housing also ensures a compact design of the cyclone separator.

Preferably, a blower device is provided for sucking in and/or blowing out outside air and/or inside air. The blower device is particularly preferably designed in such a way that both outside air, i.e. air outside the Building, as well as indoor air, i.e. air from inside the building, are made available to the ventilation system.

In particular, the blower device is provided or designed on the one hand for outside air intake and inside air intake and/or on the other hand for outside air blowing and inside air blowing out.

The ventilation system then enables this medium flow to be cleaned, processed and disinfected. In this context, it can of course also be provided that a plurality of blower devices are used. Particularly preferably, the blower device is assigned to the cyclone separator and/or the irradiation device in such a way that the medium flow flows through the housing and/or the cyclone housing. In particular, the blower device is arranged in the cyclone separator and/or is formed by the swirl generator or the forced flow is generated by the swirl generator. The swirl generator can therefore also form or have the blower device. A blower device with outside air and inside air intake is preferably used. The medium flow is thus “pulled” through the cyclone separator.

Furthermore, in a further preferred embodiment it is provided that a temperature control device is provided for regulating the thermal room climate in the building, in particular in residential, office, administrative and/or industrial buildings. The temperature control device can preferably be provided for heating and/or cooling the medium flow and thus for heating and/or cooling rooms in the building. In particular, the temperature control device is arranged in the irradiation device. Alternatively or additionally, it can be provided that the temperature control device is arranged upstream and/or downstream of the irradiation device - preferably with regard to the process direction or flow direction in the ventilation system.

Preferably, the temperature control device can have at least one infrared lamp. Alternatively or additionally, it can also be provided that the temperature control device has at least one heat exchanger, in particular a plate heat exchanger and/or tubular heat exchanger. The plate heat exchanger and/or tubular heat exchanger can, in particular, use a temperature control medium, for example water, to cool or heat the medium flow. This will the heat transfer to the plates and/or tubes of the heat exchanger is used for temperature control. The at least one infrared lamp can lead to heating of the medium through the radiation provided. In addition to air purification, the ventilation system can also preferably fulfill the additional function of air conditioning.

Furthermore, an injection device for injecting a liquid, in particular water and/or disinfectant, is preferably provided for moisture regulation of the medium flow and/or for disinfection; the injection device is preferably arranged downstream of or behind the cyclone separator and/or downstream or behind the irradiation device . The injection device can introduce liquid into the medium stream, preferably in droplet form and/or aerosol form. In particular, an at least essentially annular injection device can be provided, so that the liquid can be distributed not just at one point, but over an injection area.

Preferably, the injection device for air humidification is connected upstream of the irradiation device and/or arranged in the housing inlet. Such an arrangement has the advantage that the liquid introduced by the injection device can also be subjected to UV disinfection, so that inactivation of microorganisms can at least essentially be ensured. This has the advantage that, for example, a distribution of bacteria, legionella or the like through the liquid introduced by the injection device can be reliably prevented, preferably without the need for further additional components.

In addition, as explained above, the liquid may contain a disinfectant or the like, which contributes to further improving air purification. Using an injection device for disinfection is particularly advantageous in the catering industry and/or the process industry. Through the injection device, the air conditioning system can also regulate the air humidity in the building or in individual rooms of the building. Air that is too dry poses a risk to the health of those in the building, so air humidity regulation can contribute to an improved climate in the building. In particular, the injection device can be arranged on the wall of the housing of the irradiation device, preferably in the area of the housing inlet. The injection device can also be provided as an additional component of the ventilation system, which can preferably be integrated between the cyclone separator and the irradiation device if necessary. The amount of liquid dispensed via the injection device and/or the time period for dispensing the liquid can be controlled and/or regulated in particular in accordance with the humidity in the building, which can be measured if necessary. This allows an optimized and adapted use of the injection device to regulate the air humidity.

In a further preferred embodiment, a plurality of cyclone separators and/or irradiation devices are provided. The cyclone separators can preferably be arranged in series, in particular in series, and/or connected in parallel to one another, preferably in order to enable greater efficiency and/or higher capacities.

When arranging the cyclone separators in series, it is preferred that an irradiation device for UV irradiation is arranged between two cyclone separators arranged one behind the other. The serial arrangement of cyclone separators with irradiation devices arranged between them can in particular ensure a high degree of purity. Accordingly, the tube interposed between two cyclone separators can preferably be designed as a so-called “UV tube” with an irradiation device. The housing inlet of the intermediate UV tube or the intermediate irradiation device can thus be assigned to the gas outlet of a first cyclone separator, wherein the housing outlet of the intermediate irradiation device can form the first inlet of the further (downstream) cyclone separator.

Alternatively or additionally, it can be provided that in the parallel arrangement of the cyclone separators an irradiation device is assigned to each gas outlet of a cyclone separator or that in the parallel arrangement of the cyclone separators a common irradiation device is assigned to a plurality of gas outlets each belonging to a cyclone separator. Preferably, a single irradiation device is provided for all cyclone separators. The gas outlets of the cyclone separators can also be brought together and thus bundled in a common feed means before being fed to the irradiation device. A grouped arrangement of cyclone separators can also be provided, so that an irradiation device is assigned to several cyclone separators. However, the ventilation system can still have a plurality of irradiation devices, each of which is assigned a certain number of cyclone separators.

Preferably, the temperature control device, the injection device and/or the irradiation device can be controlled and/or regulated by a control and/or regulating device. In particular, independent control and/or regulation of the temperature control device, the injection device and/or the irradiation device can take place. The operation of the cyclone separator can also be controlled and/or regulated; in particular, a control of the swirl generator and/or the blower device can be provided. The cyclone separator can also be controlled and/or regulated independently of the irradiation device or the other devices of the ventilation system.

This means that individual adjustment of the operation of the air conditioning system can be made possible.

In a further preferred embodiment it is provided that the ventilation system is designed such that the flow speed of the medium stream in the irradiation device is between 2 to 20 m/s, preferably between 2.5 to 10 m/s. Alternatively or additionally, it can be provided that the ventilation system is designed in such a way that a turbulent flow of the medium flow is present in the irradiation device, in particular where the Reynolds number of the flow in the irradiation device is greater than 2300, which in particular characterizes a turbulent flow. Accordingly, the treatment in the irradiation device can be improved by the turbulent flow, since the turbulent flow can ensure that all microorganisms or at least essentially a majority of the microorganisms are exposed to UV radiation. This results in a significant advantage over laminar flow. The turbulent flow is preferably provided by the cyclone separator, particularly preferably the swirl generator provided in the cyclone separator. The high flow speeds in the ventilation system also enable a high throughput of air and This improves the circulation of the air in the building so that efficient operation of the air conditioning system can be guaranteed.

At this point, the advantages of the RLT system according to the invention compared to RLT systems known from the prior art can be discussed again. Current RLT systems known from the prior art are based on the so-called “box principle”. Each individual function of the system has its own section in the particularly long cuboid box. Functions of the known RLT system include, for example, the control flap, a pre-filter, the main filter, a heating/cooling register, a fan and/or a post-filter. The filter elements from the prior art take up the largest volume and therefore determine the overall size of the air conditioning system. Filter elements are particularly standardized, usually to a size for air conditioning systems of 600x600 mm for one filter element and 600x300 mm for half a filter element. The maximum air capacity is in particular in the range from 2000 to 3000 m ³ /h, whereby the maximum permissible surface speed, taking into account the known filter elements, is in particular between 1.54 and 2.31 m/s. For transport reasons, air conditioning systems are rarely provided larger than 2.4 x 2.4 m, so that a standard air conditioning system from the state of the art has a capacity of 16 filter elements, each in the range from 2000 to 3000 m ³ /h have an air capacity, so that the entire standard air conditioning system can have a capacity between 32,000 to 48,000 m ³ /h.

In addition, in RLT systems known from the prior art, the sections for the different functions are arranged in series, which results in an increased length of the RLT system.

According to the invention, by dispensing with mechanical filters, a dimensioning of the entire air conditioning system that is not known from the prior art or is possible at all is ensured, which can be used in a particularly space-saving and/or compact design. In particular, the combination of the filter and blower function in the cyclone separator and additionally the fact that the irradiation device allows higher surface velocities than the filter systems known from the prior art mean that significantly increased capacities can be achieved in a smaller air conditioning system. An RLT system according to the invention, which has the same spatial extent as an RLT system known from the prior art, preferably allows up to 2 to 3 times improved capacities. The flexibility created in this way now offers the possibility of arranging the RLT system in a building instead of just on the roof, as is the case with known RLT systems.

Preferably, the temperature control device and/or the injection device can be operated simultaneously with the irradiation device, so that both temperature control, in particular heating and/or cooling, and/or moisture regulation of the medium flow can take place at the same time as the UV disinfection.

Preferably, the housing on the inside facing the radiation source is designed to be reflective at least in some areas, preferably over the entire surface, with a degree of reflection for UV radiation emitted by the radiation source of at least 0.6, in particular where the degree of reflection is at least 0.7, preferably at least 0.8 , more preferably at least 0.9.

The interior of the housing or the enclosed interior of the housing can be viewed in particular as a UV treatment chamber for treating the medium.

The inner wall is preferably a reflector, which is further preferably designed as a housing component that is inserted into the housing and/or can be replaced.

For the purposes of the invention, the degree of reflection is understood to be the ratio between reflected and incident intensity as an energy quantity. The degree of reflection can depend in particular on the material of the inner wall on which the radiation impinges and on the radiation itself.

The housing preferably has a length between 30 and 200 cm, preferably between 80 and 160 cm. The housing can have a diameter, preferably an inner diameter, between 10 to 100 cm, preferably between 15 to 50 cm. In a particularly preferred embodiment, the housing has a length of between 80 and 160 cm and an inner diameter of between 10 and 20 cm. With the aforementioned orders of magnitude, efficient inactivation of the microorganisms can be ensured, particularly for a medium flow with a flow speed between 1 to 20 m/s, preferably between 2 to 10 m/s. Furthermore, in a further preferred embodiment it can be provided that the radiation source has a plurality of lighting devices, preferably LEDs. Furthermore, alternatively or additionally, the radiation source can have an at least substantially elongated and/or rod-shaped shape. In particular, the radiation source can have a length of at least 5 cm, preferably between 5 cm to 30 cm, more preferably between 10 cm to 20 cm. In a particularly preferred embodiment it is provided that the radiation source has an elongated shape with a plurality of lamps, preferably LEDs, which are arranged along an “array”.

In addition, the radiation source can have a diameter of at least 1 cm, preferably between 1 cm and 20 cm, more preferably between 2 cm and 10 cm and in particular 5 cm +/- 1 cm. The diameter of the radiation source can also depend in particular on the diameter of the lamp used in the radiation source.

Alternatively or additionally, the radiation source can also be designed as a UV low-pressure lamp, in particular a low-pressure mercury discharge lamp, and/or as a UV medium-pressure lamp. At least one radiation source can also be designed as an excimer lamp (excimer = excited dimer), which can be used in particular to improve the disinfection function.

Alternatively or additionally, it can preferably be provided that ionization and/or plasma generators and/or rods are used in the irradiation device, which can be used in particular to further improve air disinfection.

Ultimately, the radiation source can provide the UV radiation, in particular UV-C radiation, required to inactivate the microorganisms. The radiation source can have an intensity on its surface between 1000 to 8000 W/m ² , preferably between 2000 to 6000 W/m ² and in particular 4200 W/m ² +/- 20%.

Furthermore, the radiation source can in particular provide a power of at least 100 W, preferably 190 W +/- 10%. The power in the UV-C radiation range can preferably be between 10 and 100 W, more preferably between 50 and 70 W. The radiation emitted by the radiation source can be with its Decrease intensity in the square of the distance. This reduction in amplitude can be counteracted by the constructive interference achieved.

In a further preferred embodiment of the inventive concept it is provided that a plurality of radiation sources are arranged in the housing. In particular, between 2 to 10, preferably between 2 to 5, radiation sources can be arranged in the housing. The radiation sources can in particular also have a plurality of lighting devices, preferably LEDs. The multiple radiation sources can provide radiation that is at least substantially uniform and/or sufficient to inactivate the microorganisms over the length of the housing.

A prefilter is preferably arranged in front of the first inlet and/or the housing inlet. The prefilter can preferably be designed in such a way that particles with a diameter greater than 1 pm, preferably greater than 0.5 pm, are filtered out of the medium stream. This means that particles can be filtered out from the medium flow in particular, which could create a so-called “shadow formation” in the UV treatment chamber due to the resulting interaction with the UV radiation. Ultimately, what is relevant in this context is that the UV radiation is on a scale between 0.2 and 0.3 pm. However, since the aforementioned particles, for example dust particles or pollen or the like, have a larger diameter than the wavelength, the wavelength in particular cannot pass through the particles with a diameter of greater than 1 pm. For example, a bacterium can have a diameter of around 0.3 pm. According to the invention, it has been found that the shadow effect is present in front of particles with a diameter of less than 0.5 pm, in particular between 0.3 pm and 0.5 pm, but the killing of the microorganisms can still be tolerated. In this way, those microorganisms with a diameter larger than the wavelength of the UV radiation can also be rendered harmless because the UV radiation also hits them.

The irradiation device preferably has a holding device by means of which the at least one radiation source is held and/or fixed or can be held and/or fixed. The holding device is in particular connected to the housing and/or the reflector, preferably in a detachable manner. The holding device can be designed such that the central axis of the at least one radiation source encloses an angle to the central axis of the reflector. According to the invention, the central axis is understood to mean in particular the longitudinal axis of the reflector or the housing or the radiation source. The central axis lies or runs in particular in the respective center of the body and/or in the center of gravity of the respective body and preferably forms the axis of symmetry. If the body is not symmetrical, the central axis of the respective body - that is, the reflector, the housing and / or the radiation source - forms the approximate axis of symmetry of the body. Thus, according to the invention, central axes of bodies that are not symmetrical are also included.

In particular, the central axis of the radiation source or the reflector or the housing runs through the center of gravity and/or the center of the radiation source or the housing. The central axis preferably runs in the longitudinal extent of the reflector or the housing or the radiation source, the radiation source or the reflector or the housing being designed to be elongated.

A longitudinal extension is to be understood in particular as meaning that the length of the body exceeds the width of the body.

According to the invention, it has been found that the aforementioned oblique arrangement between the central axis of the at least one radiation source and the central axis of the reflector or the housing results in an increase in the constructive interference and thus in particular an improvement in the UV radiation dose to be administered with which the medium is treated , can be achieved. The person skilled in the art would not have expected that such an improvement would result from an inclined position of the radiation source.

Ultimately, according to the invention, it was found that the interference between the radiation directly reflected on the inside of the reflector and the radiation emitted by the radiation source can be specifically controlled, in particular in such a way that there is an increase in the amplitude of the radiation intensity compared to a “straight “Order results.

In addition, it can be provided that a plurality of radiation sources are held and/or fixed on the holding device. In particular, each central axis closes Each radiation source sets an angle, preferably in the aforementioned order of magnitude, to the central axis of the reflector.

In a further preferred embodiment, the central axes, in particular at least two central axes, more preferably at least four central axes, in particular all central axes, of the radiation sources are arranged parallel to one another. Alternatively or additionally, it can be provided that at least two central axes, preferably at least three central axes, more preferably at least four central axes, of the radiation sources are each arranged offset from one another, preferably obliquely. Accordingly, the radiation sources can also be arranged twisted, twisted and/or twisted together. In particular, the included angle between two adjacent radiation sources, in particular between the adjacent central axes of the adjacent radiation sources, can be between 1° to 120°, more preferably between 5° to 90°, more preferably between 10° to 40°. The aforementioned angle indicates in particular the degree of twisting between the radiation sources.

Preferably, the infrared lamps or the at least one infrared lamp of the temperature control device can also be arranged in the holding device. Preferably, at least one UV radiation source of the lamp package is replaced with an infrared lamp, so that the UV radiation sources can be introduced into the irradiation device together with the at least one infrared lamp in modular form through the holding device.

Furthermore, the present invention relates to the use of a ventilation system for air purification of buildings, in particular residential, office, administrative and/or industrial buildings, as well as a corresponding method for air purification. The ventilation system is designed according to one of the previously mentioned embodiments.

In this context, it is understood that with regard to preferred embodiments of the use according to the invention, reference may be made to the aforementioned statements on the ventilation system, which can also apply to the use and the method. Furthermore, with regard to the advantages of the use according to the invention and the method, reference may also be made to the previously described advantages of the ventilation system that can apply in the same way. The method is understood to be used synonymously below.

In a particularly preferred embodiment of the use according to the invention it is provided that the flow velocity of the medium stream in the irradiation device is between 2 to 20 m/s, preferably between 2.5 to 10 m/s. Accordingly, an increase in the flow velocity and thus an increased throughput can be achieved, particularly in comparison to ventilation systems known in the prior art, which increases the efficiency of the entire system.

In addition, in a further preferred embodiment of the inventive concept it is provided that a turbulent flow of the medium stream is present in the irradiation device. In particular, the Reynolds number of the flow in the irradiation device of the medium flow is or is greater than 2300. Such a Reynolds number ultimately indicates in particular the presence of a turbulent flow.

Furthermore, it is understood that the aforementioned intervals and range boundaries contain any intermediate intervals and individual values and are to be regarded as disclosed as essential to the invention, even if these intermediate intervals and individual values are not specifically stated.

Further features, advantages and possible applications of the present invention result from the following description of exemplary embodiments based on the drawing and the drawing itself. All described and/or illustrated features, individually or in any combination, form the subject of the present invention, regardless of their Summary in the claims or their relationship.

It shows:

1 is a schematic perspective view of a ventilation system according to the invention,

2 is a schematic side view of the ventilation system shown in FIG. 1, 3 shows a further side view of the ventilation system shown in FIG. 1,

4 is a schematic perspective view of the air conditioning system shown in FIG. 1 without a cyclone housing,

5 shows a schematic side view of the components of the ventilation system shown in FIG. 4,

6 is a sectional view of the ventilation system shown in FIG. 1,

7 shows a schematic sectional view of a further embodiment of a ventilation system according to the invention,

8 is a schematic representation of an injection device according to the invention,

9 is a schematic perspective view of an irradiation device according to the invention,

10 is a schematic side view of the irradiation device shown in FIG. 9,

11 shows a further schematic side view of the irradiation device shown in FIG. 9,

12 shows a schematic top view of a first holding unit according to the invention,

13 shows a schematic representation of a holding device according to the invention,

14 shows a schematic representation of the arrangement of at least one radiation source in the reflector, 15 shows a schematic representation of the arrangement of two radiation sources in the reflector,

16 is a schematic representation of a further embodiment of a first holding means,

17 is a schematic representation of the alignment of a radiation source according to the invention,

18 shows a schematic representation of a further embodiment of a ventilation system according to the invention,

19 shows a schematic representation of a further embodiment of a ventilation system according to the invention,

20 is a schematic representation of a further embodiment of a ventilation system according to the invention,

21 shows a schematic representation of a further embodiment of a ventilation system according to the invention,

22A shows a schematic comparison of an air conditioning system known from the prior art to an air conditioning system according to the invention in a longitudinal view and

Fig. 22B shows a schematic comparison of an air conditioning system known from the prior art to an air conditioning system according to the invention in a side view.

Fig. 1 shows a ventilation system 10 for air purification in buildings. In particular, the ventilation system 10 is used for residential, office and/or administrative and/or industrial buildings. The system 10 has at least one cyclone separator 7 for separating solid and/or liquid particles of a gaseous medium, in particular air. The medium is supplied to the ventilation system 10. In addition, the medium or the medium flow is guided through the ventilation system 10. The medium or the medium stream is subject to different treatment stages in the system 10 and can therefore be freed from particles, for example. Ultimately, the “medium” or “medium stream” is understood to mean the medium stream to be treated in the RLT system 10.

Fig. 1 also shows that the ventilation system 10 has an irradiation device 1, which is assigned to the cyclone separator 7. The irradiation device 1 is used for UV irradiation, in particular UV-C irradiation, of the gaseous medium, in particular air, flowing through the irradiation device 1. The irradiation device 1 can preferably be used to inactivate microorganisms present in the medium, such as bacteria, germs, mold and/or viruses or the like. The irradiation device 1 can be provided with the entire amount of medium flowing through the system 10 or only a partial flow.

Fig. 3 shows that the cyclone separator 7 has a cyclone housing 9 through which the medium can flow. The cyclone housing 9 has a first inlet 11 and a particle outlet 12. In the exemplary embodiment shown in FIG. 3, the particle outlet 12 circumferentially surrounds the cyclone housing 9. The particle outlet 12 ultimately serves to remove the particles of the medium separated by the cyclone separator 7. In addition, the cyclone housing 9 has a gas outlet 13, as shown in FIG. 6. The gas outlet 13 serves to exit the medium stream that has been at least substantially freed from the particles.

21 shows that a removal device 54 is assigned to the particle outlet 12 for, preferably continuous, removal of the separated particles. The removal device 54 can use a transport medium, such as water and/or air, to transport the separated particles. The transport medium can flow through the discharge device 54 and thus entrain the particles emerging from the particle outlet 12. The flow of the transport medium can be provided via a fan arranged in the discharge device 54, as shown in FIG. 21. The separated particles can then be transferred to another drainage system, in particular the sewer system. The direction of flow of the transport medium in the discharge device 54 is illustrated schematically by arrows in FIG. 21. What is not shown is that a non-continuous removal device 54 can be used. Such a discharge device 54 can have a collecting container (not shown), such as in particular a container and/or bag, which must be emptied at regular intervals.

4 shows that the irradiation device 1 has a housing 4. The housing 4 of the irradiation device 1 has a housing inlet 2 and a housing outlet 3, as shown schematically in FIG. 9. 9 to 17 show different embodiments of the irradiation device 1 or parts of the irradiation device 1 that can be used in the system 10.

The irradiation device 1 shown in the embodiment according to FIG. 4 has at least one UV radiation-emitting radiation source 5 for irradiating the medium flowing through the housing 4, as can also be seen schematically from the sectional view according to FIG.

Fig. 6 shows a sectional view of the air conditioning system 10 shown in Fig. 3.

In the embodiment of the system 10 shown in FIGS. 1 to 6, it is provided that the irradiation device 1 is connected downstream of the cyclone separator 7 in the flow direction of the gaseous medium and thus in the process direction.

What is not shown is that the irradiation device 1 can also be connected upstream of the cyclone separator 7 in the flow direction of the gaseous medium or in the process direction.

The irradiation device 1 and the cyclone separator 7 can be components that are connected to one another or integrated into one another, or components that can be handled independently of one another.

6 shows that in the embodiment of the system 10 according to FIGS. 1 to 6, the gas outlet 13 opens into the housing inlet 2 or even forms it. Ultimately, the irradiation device 1 is at least partially arranged in the cyclone separator 7, as can be seen from FIG. 6. The housing inlet 2 can thus be arranged in the gas outlet 13. Furthermore, it can be seen from FIG. 6 that the cyclone housing 9 has an immersion tube 14. The immersion tube 14 serves to remove the medium flow from the cyclone housing 9. It is understood that the immersion tube 14 has the gas outlet 13 and can ultimately remove the medium flow freed from the particles separated by the cyclone separator 7. 6 also shows that the dip tube 14 also has the housing inlet 2 for the irradiation device 1.

What is not shown in more detail is that the depth of the dip tube 14 protruding into the cyclone housing 7 can be changed and/or adjustable. By changing the depth of the dip tube 14 protruding into the cyclone housing 7, the degree of the amount of particles separated by the cyclone separator 7 and/or the volume flow discharged via the dip tube 14 can also be changed.

The cyclone separator 7 shown in FIG. 4 and FIG. 5 has a swirl generator 15. The swirl generator 15 also includes deflection blades 16 for generating a swirl or for generating a vortex flow. The swirl generator 15 or the deflection blades 16 can be rotatable or rotate. Furthermore, FIG. 6 shows that the swirl generator 15 is arranged in the cyclone housing 9.

The cyclone separator 7 shown in FIG. 3 is designed as an axial separator.

The cyclone separators 7 shown in FIG. 18 are designed as tangential separators.

In the embodiment shown in FIG. 3 it is also provided that the particle outlet 12 has a slag housing 48 surrounding the circumference of the cyclone housing 9. The slag housing 48 serves to collect and remove the particles separated by the cyclone separator 7.

Fig. 6 also shows the flow profile of the medium flow. Ultimately, in order to exit the cyclone housing 9, it is necessary for the medium flow to be guided past the wall of the slag housing 48 and redirected to enter the dip tube 14. The course of flow is indicated schematically in FIG. 6 by corresponding flow arrows. The swirl generator 15 shown in FIG. 4 also serves as a blower device 17. The blower device 17 is intended for outside air and inside air suction, but this is not shown in more detail. It is also not shown in more detail that in further embodiments an independent blower device 17, which can be provided independently of the swirl generator 15, is also provided. The system 10 can also have a plurality of blower devices 17. The blower device 17 can in principle be provided for outside air and/or inside air suction and/or blowing out.

In particular, the blower device 17 can be provided on the one hand for outside air intake and inside air intake and/or on the other hand for outside air blowing and inside air blowing out,

Thus, different shapes of the blower device 17 or a fan can be used as the blower device 17. Ultimately, the blower device 17 is designed such that the medium flow flows through the housing 4 and/or the cyclone housing 9. The blower device 17 can therefore also be arranged in the cyclone separator 7 for a compact design, as is provided in the embodiment according to FIG.

In the embodiment shown in FIG. 6 it is provided that a temperature control device 18 is present for regulating the thermal room climate in the building. The temperature control device 18 shown in FIG. 6 has an infrared lamp 19, which can be arranged together with the UV radiation sources 5 in a holding device 22, as can also be seen schematically from FIG. 9. Ultimately, the infrared lamp 19 can be arranged together with the UV radiation sources 5 on the holding device 22 and thus also be handled together with the radiation sources 5. The infrared lamp 19 is designed to heat the medium flow.

What is not shown is that the temperature control device 18 can also be designed to cool the medium flow. In addition, alternatively or additionally, the temperature control device 18 can have at least one heat exchanger, in particular a plate heat exchanger and/or tubular heat exchanger. A temperature control medium, in particular water, can also be supplied to the plate heat exchanger and/or tubular heat exchanger for heat exchange, in particular the Temperature control device 18 can be flowed through continuously by the temperature control medium.

In the embodiment shown in FIG. 7, an injection device 20 is provided for injecting a liquid into the medium flow. The injection of the liquid, which in particular contains or consists of water and/or disinfectant, serves in particular to regulate the moisture content of the medium flow and thus to adjust the air humidity in the building.

7 shows that the injection device 20 is connected upstream of the irradiation device 1 in the direction of flow. The injection device 20 can also be arranged in the housing inlet 2 or connected upstream of the housing inlet 2. The injection device 20 can be permanently connected to the irradiation device 1 or can be provided as a separate component.

8 shows a schematic representation of the injection device 20 used in FIG. 7. The injection device 20 is particularly annular and has a plurality of injection openings 49. The liquid can exit the injection device 20 through the injection openings 49. Due to the annular design of the injection device 20 and the majority of injection openings 49, which are preferably slightly spaced apart from one another, a uniform spraying of the medium flow can be achieved. The advantage of the upstream arrangement is that the liquid introduced by the injection device 20 is also subjected to UV disinfection in the irradiation device 1.

18 to 20 show that the system 10 has a plurality of cyclone separators 7 and irradiation devices 1.

The serial circuit or the serial arrangement of the cyclone separators 7 is shown in FIG. In the embodiments shown in FIGS. 19 and 20, the cyclone separators 7 are arranged parallel to one another.

18 further shows that when the cyclone separators 7 are arranged in series, an irradiation device 1 is arranged between two cyclone separators 7 arranged one behind the other. A further irradiation device can then also be provided after the last cyclone separator 7 arranged in the process direction, but this is not shown in more detail in FIG. 18. Also can with several Cyclone separators 7 do not have to be arranged between each pair of cyclone separators 7 that are adjacent to one another, an irradiation device 1, but this is preferred. In any case, the irradiation device 1 can form the tube interposed between two cyclone separators 7. The inlet of the irradiation device 1 can thus be assigned to the gas outlet 13 of a first cyclone separator 7, wherein the housing outlet 3 of the irradiation device 1 can be assigned to the first inlet 11 of a further cyclone separator 7.

20 shows that when the cyclone separators 7 are arranged in parallel, an irradiation device 1 is assigned to each first gas outlet 13 of a cyclone separator 7.

In the exemplary embodiment shown in FIG. 19 it is provided that when the cyclone separators 7 are arranged in parallel, an irradiation device 1 is assigned to a plurality of cyclone separators 7 and thus to a plurality of first gas outlets 13. The medium streams emerging from the cyclone separators 7 can be combined before they are fed to the irradiation device 1; However, this can also be done differently in further embodiments.

It is understood that when the cyclone separators 7 are arranged in parallel, between 2 to 10 cyclone separators 7 can be assigned to a common irradiation device 1 or to a plurality of irradiation devices 1. A grouped arrangement can also be provided when the cyclone separators 7 are arranged in parallel; Thus, a specific group of cyclone separators 7 can be assigned to an irradiation device 1, with a further group of cyclone separators 7 being able to be assigned to a further irradiation device 1.

What is not shown in more detail is that the temperature control device 18, the injection device 20 and/or the irradiation device 1 can be controlled and/or regulated by a control and/or regulating device, in particular wherein the aforementioned components can be controlled and/or regulated independently of one another.

The ventilation system 10 shown in FIG. 1 is designed in such a way that the flow speed of the medium stream in the irradiation device 1 is between 2 to 20 m/s, in particular between 2.5 to 10 m/s. In addition, the in The air conditioning system 10 shown in FIG. This turbulent flow can be provided in particular by the swirl generator 15 of the at least one cyclone separator 7.

What is not shown in more detail is that the temperature control device 18 and the injection device 20 can be operated simultaneously with the irradiation device 1.

What is also not shown in more detail is that the air conditioning system 10 according to one of the aforementioned embodiments can be used to purify the air in buildings, in particular residential, office, administrative and/or industrial buildings. When used in this regard, the flow velocity of the medium stream in the irradiation device 1 can be between 2 and 20 m/s, in particular between 3 and 10 m/s. A turbulent flow of the medium can also be provided in the irradiation device 1, so that in particular an efficient UV disinfection of the medium flow can take place. The Reynolds number of the flow of the medium in the irradiation device 1 can be more than 2300.

The housing 4 can have a length between 30 and 200 cm.

In addition, the UV radiation sources 5 shown can emit UV radiation in a wavelength range of 240 to 300 nm.

Fig. 20 shows that the system 10 has a pre-filter 50. The pre-filter 50 can be designed as a HEPA filter. In the embodiment shown in FIG. 20, the prefilter 50 is arranged in front of the cyclone separators 7 in the process direction. What is not shown is that a plurality of pre-filters 50 can also be provided, in particular where one pre-filter 50 can be assigned to each cyclone separator 7. It is also not shown that in a further embodiment the system 10 can have a pre-filter 50 which is arranged in front of the cyclone separator 7 or behind the irradiation device 1 in the flow direction of the medium, the system 10 having only one cyclone separator 7. The prefilter 50 can be designed such that particles with a diameter of greater than 1 pm are at least essentially filtered out of the medium flow.

22A and 22B show a schematic comparison between an air conditioning system 10 according to the invention and an air conditioning system known from the prior art. The system 10 according to the invention is shown in the upper area of FIGS. 22A and 22B and the air conditioning system known from the prior art is shown in the lower area in a box-shaped design. Figure 22A shows a longitudinal view of the equipment, while Figure 22B provides the side view of the equipment shown in Figure 22A. Both the upper system 10 according to the invention and the lower air conditioning system known from the prior art are designed for an air circulation of 32,000 to 48,000 m ³ /h. However, FIG. 22A makes it clear that the length A of the air conditioning system according to the invention can be reduced by more than 100% compared to the length B of the air conditioning system known from practice with the same capacity. In particular, the length A corresponds to between 20 and 50% of the length B, with the same capacity of both systems. 22B shows that the heights C, D and the widths D, E can be at least essentially the same or do not differ from each other by more than 30%.

Fig. 22A shows that the air conditioning system known from the prior art is designed in individual sections. Each section is assigned to a function and takes up a certain length. Due to the large spatial extent, the air conditioning system known from practice is usually installed on roofs and not used in buildings. The system 10 according to the invention can also be used in buildings. The RLT system known from practice can comprise a plurality of sections according to the embodiment shown in FIG. 22A. 22A shows that the air conditioning system known from practice has an inlet grille 51, a pre-filter 50, a main filter 52, a service room 53, a temperature control device 18 and a blower device 17. In the RLT system 10 according to the invention, the blower device 17 is integrated in the cyclone separator 7, which results in enormous space savings. Further space savings can be achieved by eliminating the filters 52 and 53.

The irradiation device 1 will be discussed in more detail below. In this context, it is understood that the aspects described below Irradiation device 1 can be transferred to the entire ventilation system 10.

9 shows an irradiation device 1, which is designed for UV irradiation, in particular UV-C irradiation, of a medium flowing through the irradiation device 1. The medium can be a fluid or a gas. In particular, water or air is provided as the medium. The irradiation device 1 is used to inactivate microorganisms present in the medium, such as bacteria, germs, mold and/or viruses. In particular, the irradiation device 1 is used to inactivate corona viruses. Corona viruses in particular include SARS-CoV-2 viruses.

The irradiation device 1 has a housing 4 which has a housing inlet 2 and a housing outlet 3 for the medium. In Fig. 9, the direction of flow of the medium is shown schematically using flow arrows.

At least one radiation source 5 is arranged in the housing 4, namely inside the housing 4. The interior of the housing 4 includes the treatment chamber 8, in which the radiation source(s) 5 is/are arranged.

The radiation source 5 serves to irradiate the medium flowing through the housing 4.

In the embodiment according to FIG. 9, a plurality of radiation sources 5 are provided.

1 shows that the first inlet 11 and the housing outlet 3 are designed to be arranged on at least one pipe and/or hose, in particular an air pipe and/or air hose. These ventilation pipes are not shown in more detail. In particular, the air conditioning system 10 can be integrated into existing ventilation systems.

The air conditioning system 10 can be designed to suck in or supply outside air. If necessary, at least a portion of the air taken from the rooms can be supplied to the air conditioning system 10 as recirculated air. The RLT system 10 can in particular only be operated with fresh outside air or with outside air and recirculated air; pure recirculated air operation of the RLT system 10 can only be provided in exceptional cases. The ventilation system 10 shown in the exemplary embodiments can be operated without a filter, in particular without a HEPA filter, or without a filter, in particular without a HEPA filter. As a result, there is no need to regularly replace the filter to ensure good cleaning performance and to avoid the formation of a so-called filter cake.

The housing 4 has a reflector 21. The inside 6 of the reflector 21 also forms the inside 6 of the housing 4. In the illustrated embodiments according to FIGS. 9 to 11, the reflector 21 is shown "transparent" for reasons of illustration.

In particular, the reflector 21 is designed as an aluminum sheet that can be enclosed or held in a corresponding profile.

The inside 6 is designed to be reflective at least in some areas, preferably over the entire surface, with a degree of reflection for the UV radiation emitted by the radiation source 5 of greater than 0.6, in particular at least 0.8. In particular, the inside 6 is designed so that a directed, direct reflection of the radiation can take place. For this purpose, the inside 6 is designed to be particularly smooth and flat.

The radiation source 5 is held and/or fixed with a holding device 22. The holding device 22 is connected, preferably detachably, to the housing 4 and/or the reflector 21.

9 shows that the holding device 22 is designed such that the central axis S of the at least one radiation source 5 encloses an angle a to the central axis R of the reflector 21.

14 shows schematically that the radiation source 5 is arranged such that an angle a is included between the central axes S and R. For reasons of illustration, the holding device 22 is not shown in more detail in FIG. 14.

In the embodiment shown in FIG. 14, the included angle a between the central axis S of the at least one radiation source 5 and the central axis R of the reflector 21 is between arcsin((0.2 • D/L) and arcsin((4 • D)/ L). In particular, the angle a is between 2° ± 0.5°. To adjust the inclination of the In order to better represent the radiation source 5 for schematic reasons, the angle a has been deliberately chosen to be larger in the illustrated embodiments according to FIGS. 14 and 15. However, it is understood that these figures are to be understood as schematic representations and do not reflect the actual proportions.

Furthermore, it goes without saying that the angle a is in particular of the aforementioned order of magnitude.

The angle a is preferably between arcsin(D/L) and arcsin((2 • D)/L). The total oblique offset is therefore between D and 2D.

D indicates the, in particular maximum and/or average, diameter of the radiation source 5 and L indicates the length of the radiation source 5.

The radiation sources 5 shown in the illustrated embodiments are designed in particular as LED spotlights.

The radiation sources 5 are also rod-shaped or cylindrical and elongated. The longitudinal extent of the radiation source 5 runs at least essentially in the direction of the longitudinal extent of the reflector 21 - taking into account the previously discussed inclination of the radiation source(s) 5. Thus, no orthogonal arrangement of the radiation source 5 in relation to the central axis R of the reflector 21 is preferably provided.

As previously explained, FIGS. 9 to 11 show that a plurality of radiation sources 5 are held and/or fixed on the holding device 22. 9 and 10 show corresponding side views of the irradiation device 1 shown in FIG.

In this context, it is understood that in further embodiments a plurality of holding devices 22 can also be provided, wherein at least one radiation source 5, preferably a plurality of radiation sources 5, can be attached to the respective holding devices 22. This Holding devices 22 can be arranged one below the other and/or next to one another, in particular at a distance from one another. However, it is particularly preferred that a single holding device 22 is provided.

The radiation sources 5 attached to the holding device 22 can also be referred to as a “lamp package” or radiation unit.

The housing inlet 2 and the housing outlet 3 can also be arranged at other locations on the housing 4. Ultimately, the housing inlet 2 serves to introduce the medium into the treatment chamber 8, while the housing outlet 3 enables the medium to exit the irradiation device 1. In principle, it can also be provided according to the invention that a plurality of inlets 2 and/or a plurality of outlets 3 are present.

In the embodiment shown, only one radiation source 5 is arranged on the holding device 22 in the longitudinal direction of the reflector 21. The further radiation sources 5 are also at least essentially aligned in the longitudinal direction. What is not shown is that in a further embodiment it can also be provided that at least two radiation sources 5 can be arranged one behind the other on a holding device 22 in the longitudinal direction of the reflector 21. A radiation source 5 can also be designed in several parts.

In the embodiment shown in FIG. 10, each central axis S of each radiation source 5 encloses an angle a to the central axis R of the reflector 21. 15 shows schematically that the central axes Si and S2 each enclose an angle on and «2 to the central axis R of the reflector 21.

The central axis is the axis that forms an approximate axis of symmetry of the body. However, non-symmetrical bodies are also taken into account. In this case, the central axis can run in particular through the center of gravity of the body and in the longitudinal extension of the body. According to the invention, deviations from the central axis of ± 10% are also subsumed under the “central axis”.

11 shows schematically that the central axes S of the radiation sources 5 are arranged at least substantially parallel to one another. 15 shows schematically that at least two central axes Si and S2 are arranged offset from one another, in particular obliquely. The included angle δ between at least two radiation sources 5 can be between 1° to 50°, in particular between 10° to 40°.

In particular, the central axes S of the radiation sources 5 can also be arranged obliquely and/or skewed to one another.

In the case of the holding device 22 shown in FIG. 9, it is provided that it is designed in such a way that the radiation source 5 or the radiation sources 5 are detachably connected to the holding device 22.

The radiation sources 5 can be equally spaced from one another. However, it can also be provided that the central axes R enclose a different angle ai, «2 to the central axis R of the reflector, as is shown schematically, for example, in FIG. 15. In the embodiment shown in FIG. 15 it is also provided that the angles on and «2 - for schematic representation purposes - are deliberately shown "larger" in order to ultimately clarify the principle.

9 shows that the holding device 22 has a first holding unit 23. The first holding unit 23 is detachably connected to the housing 4 and the reflector 21 via a first connecting means 24 of the holding device 22. For further stability of the first holding unit 23, holding struts 46 are also provided, which are each connected to the housing 4 and/or the reflector 21. The retaining struts 46 can be viewed as part of the first connecting means 24.

The retaining struts 46 are also shown schematically in FIG. 12. 12 shows the first holding unit 23 without corresponding fastening means 47 for the radiation sources 5.

12 shows that the first holding unit 23 has first holding means 25, the first holding means 25 being designed in particular as web-shaped holding arms. The first holding means 25 can be spaced apart from one another at least in certain areas, as can be seen from FIG. 12. The spacing between the first holding means 25 can also vary. The included angle ß, y vary between two immediately adjacent first holding means 25. The angles β, Y relate in particular to the central axis of the first holding means 25.

To fasten the radiation sources 5, the first holding means 25 can have fastening means 47. The fastening means 47 are shown schematically in FIG. 9.

A clip, a spring leg and/or a tension clamp, for example, can be provided as fastening means 47. Ultimately, different fasteners 47 are possible. The fastening means 47 is in particular a component of the first holding means 25.

11 shows that the first holding means 25 are connected to a first connection region 26 of the first holding unit 23. Starting from this connection area 26, the first holding means 25 protrude. One end region 28 of the first holding means 25 is connected to the connection region 26. The first holding means 25 further comprise a further end region 29, which in turn is provided for arranging the radiation sources 5, in particular the front end regions 27 of the radiation source 5. The first holding means 25 can thus be designed in particular as a support arm or cantilever arm. The free end region 29 in particular cannot be supported or can be arranged freely. The end region 28 of the first holding means 25 can be arranged directly on the first connection region 26.

In particular, this results in an at least essentially star-shaped or sun-shaped design of the first holding unit 23, as shown schematically in FIG. 12.

The end region 28 can be mounted on the connection region 26 or firmly connected to it. It can also be provided that the connecting region 26 and the end region 28 are formed in one piece with one another.

In the illustrated embodiment it is further provided that a first adjustment means 30 is arranged on the end region 28. This first adjustment means 30 enables a relative adjustment to the connection area 26 and in particular an adjustment of the radiation source 5 attached to the respective first holding means 25 - namely an adjustment of the central axis S of the radiation source 5 in relation to the central axis R of the reflector 21. What is not shown in more detail is that the first holding means 25 are also designed to be telescopic, at least in some areas.

12 shows that the first holding means 25 have a different length Z. This is also shown schematically in FIG. 16.

11 shows schematically that the radiation source 5 is detachably and frictionally connected to the first holding means 25, in particular to the fastening means 47, at one front end region 27.

Fig. 16 shows that the first holding means 25 are elongated and that at least two first holding means 25 have a length Zi, Z2 that differs from one another. It is further shown schematically in FIG. 16 that a plurality of arrangement areas 31 are provided for each holding means 25. The arrangement areas 31 can be designed for the arrangement of fastening means 47 or for the (direct) arrangement of the front end region 27 of the radiation source 5. For example, the end face of the radiation source 5 can protrude over the arrangement area 31 and thus also over the holding means 25, in particular if the front end area 27 is accommodated at least partially in the arrangement area 31 and is held therein, preferably in a frictional manner. Ultimately, different fastening options are possible between the radiation source 5 and the first holding means 25.

The angles β, y included between two immediately adjacent first holding means 25 can in particular deviate from one another by at least 5%, as shown schematically in FIG. 16.

9 shows schematically that energy supply lines 32 are provided for supplying energy to the radiation sources 5. These energy supply lines 32 are guided in particular along the first connecting means 24 and in particular along the first holding means 25. The power supply lines 32 can be connected to corresponding power supplies and/or ballasts 42, as can be seen schematically in FIG. 13. In particular, a first supply device 41 is arranged outside the housing 4 on the outside of the housing 4, which faces away from the inside 6. Ultimately, the first holding unit 23 can be designed to supply energy to the radiation sources 5.

9 shows that a second holding unit 33 is provided. The second holding unit 33 is detachably connected to the housing 4 and the reflector 21 via a second connecting means 24 of the holding device 22.

According to the embodiment shown in FIG. 9, the second connecting means 24 comprises at least two retaining struts which connect the second retaining unit 33 to the housing 4 and/or the reflector 21.

9 shows that the second holding unit 33 has second holding means 35, the second holding means 35 being designed in particular as web-shaped holding arms. The second holding means 35 can be spaced apart from one another at least in certain areas. The spacing between the second holding means 35 can also vary. The included angle between two immediately adjacent second holding means 35 can also vary.

To attach the radiation sources 5, the second holding means 35 can have fastening means 47, the fastening means 47 of the second holding means 35 can in particular be designed to correspond to the fastening means 47 of the first holding means 25, so that reference may be made to the previous statements.

9 shows that the second holding means 35 are connected to a second connection region 36 of the second holding unit 33. Starting from this connection area 36, the second holding means 35 protrude. The second holding means 35 are connected to the connecting region 36 with one end region 38. The second holding means 35 further comprise a further free or non-supported end region 39, which in turn is provided for arranging the radiation sources 5, in particular the further front end regions 37 of the radiation source 5.

The end region 38 can be mounted on the connection region 36 or firmly connected to it. It can also be provided that the connecting region 36 and the end region 38 are formed in one piece with one another. What is not shown in more detail is that a second adjustment means is arranged on the end region 38. This second adjustment means can in particular be designed in accordance with the first adjustment means 30, so that reference may be made to the comments on the first adjustment means 30

What is not shown is that the second holding means 35 are also designed to be telescopic, at least in some areas.

The second holding means 35 can also have a different length Z.

What is not shown in more detail is that the second holding means 35 can also have arrangement areas for the radiation source(s) 5. These arrangement areas can be designed like the arrangement areas 31 of the first holding unit 23.

The second connecting means 34 is designed in several parts in the exemplary embodiment shown in FIG. 9 and has a plurality of corresponding retaining struts. The holding struts of the second connecting means 34 can detachably connect the second holding unit 33 to the housing 4 and/or the reflector 21.

9 further shows that the first holding unit 23 is connected to the second holding unit 33 via a connecting part 45. The connecting part 45 can in particular be designed to be elongated and, in the exemplary embodiment shown, connects the first connecting region 26 with the second connecting region 36. The connecting part 45 is particularly stiff and stable. The outside of the connecting part 45 can be designed to be reflective.

9 shows that the connecting part 45 is arranged in the center of the lamp package and is therefore enclosed or surrounded by the radiation sources 5. In particular, the connecting part 45 (in relation to the inside 6) does not protrude beyond the radiation sources 5.

It is particularly preferred that the second holding unit 33 is designed to be complementary to the first holding unit 23, in particular so that the desired inclination of the radiation sources 5 can be achieved.

What is not shown in more detail is that the first connecting means 24, the second connecting means 34 and/or the retaining struts 46 are telescopic and/or adjustable are trained. Such an adjustment or telescoping increases in particular the flexibility or adaptability of the entire holding device 22.

13 shows a schematic view of the not yet aligned holding device 22. Ultimately, the respective radiation sources 5 are not yet arranged on the corresponding holding means 25, 35.

Fig. 13 shows the connection of the radiation sources 5 via energy supply lines 32, which are connected to a first energy supply device 41 in which several ballasts 42 are arranged. Accordingly, a modular structure of the holding device 22 can be ensured. The modular structure can be adapted in such a way that, in particular, different lengths for the radiation sources 5 can be made possible.

13 also shows that the first holding unit 23 and the first connecting means 24 are connected to a first connecting section 40. The first connecting section 40 can be detachably connected to the housing 4 and/or the reflector 21, which is not shown in more detail. For example, it can be provided that the first connecting section 40 has, at least in some areas, a profile for arranging the reflector 21, which can in particular be designed as an aluminum sheet. In principle, however, other embodiments are also conceivable.

In further embodiments, the first connecting section 40 protrudes at least partially from or above the housing. The first connecting section 40 can also have a first supply device 41 on the outside. The first supply device 41 includes several ballasts 42, as explained previously. The first supply device 41 is electrically connected to the first connection means 24 via the power supply lines 32. The power supply lines 32 can be routed through the housing 4, as shown schematically in FIG. 9, for example.

13 also shows that the second holding unit 33 and the second connecting means 34 are connected to a second connecting section 43. In further embodiments, the second connecting section 32 can also be detachably connected to the housing 4 and/or the reflector 21. In addition, the second connecting section 43 can also protrude beyond the housing 4 in further embodiments. The first and second connecting sections 40, 43 can be designed such that they can be releasably connected to one another in a form-fitting and/or frictional and/or non-positive manner. For this purpose, the connecting sections 40, 43 can have corresponding locking contours or the like. 13 shows that the connecting sections 40, 43 can be connected via their end faces. Corresponding locking contours are not shown in more detail in FIG.

Fig. 13 shows that a further connecting section 44 is provided for modular construction. The further connecting section 44 can be detachably connected to the first and/or second connecting section 40, 43 in a form-fitting and/or frictional and/or force-fitting manner. For this purpose, the further connecting section 44 can have corresponding locking contours which are designed to be complementary to the locking contours of the immediately adjacent connecting sections.

What is not shown in more detail is that the first, second and/or further connecting sections 40, 43 and 44 can protrude at least partially into the interior of the reflector 21 or can border on the inside 6 - or can be set back from it.

Depending on the embodiment, it can be provided that between 3 and 25 radiation sources 5, first holding means 25 and/or second holding means 35 are provided. The number of radiation sources 5 can depend in particular on the length of the reflector 21, the volume flow of the medium being treated and the like. 9 shows that ten radiation sources 5 are provided.

What is not shown is that the number of first holding means 25 and/or second holding means 35 exceeds the number of radiation sources 5. It is therefore not absolutely necessary that a radiation source 5 must be arranged on each holding means 25. An “overhang” of holding means 25, 35 can thus be provided.

In the embodiment shown in FIG. 9 it is provided that the radiation sources 5 are constructed identically to one another. In principle, different radiation sources 5 can also be selected if this is desired by the user. What is not shown in more detail is that at least one, preferably all, radiation sources 5 have a diameter D, in particular the maximum and/or the average diameter D, between 1 cm and 20 cm, in particular between 4 cm and 6 cm. Furthermore, the radiation sources 5 can have a length L between 0.2 to 10 m, preferably between 1 to 2 m.

The inner diameter of the reflector 21 can also vary and in particular be between 100 and 1000 cm. In particular, the inner diameter is between 200 and 600 cm.

What is not shown in more detail is that an evaluation device can be provided for detecting at least one chemical and/or physical quantity. In particular, the evaluation device is arranged in the first connecting section 40 and/or in the first holding unit 23. The evaluation device preferably has a temperature sensor, a UV sensor and/or a speed sensor.

It is also not shown in more detail that the length Z of the first holding means 25 and/or the second holding means 35 is between 0.5 • DR to 0.9 • D, preferably between 0.1 • DR to 0.5 • DR, where DR denotes the inner diameter of the reflector 21, in particular the maximum and/or the average inner diameter of the reflector 21.

List of reference symbols:

1 irradiation device

2 housing inlet

3 housing outlet

4 housings

5 radiation source

6 inside

7 cyclone separators

8 treatment chamber

9 cyclone housing

10 air conditioning system

11 first entry from 9

12 particle outlet

13 gas outlet

14 dip tube

15 twist generators

16 deflection blades

17 blower device

18 temperature control device

19 infrared lamp

20 injection device

21 reflector

22 holding device

23 first holding unit

24 first lanyard

25 first holding means

26 connection area

27 front end area of 5

28 end range of 25

29 free end area of 25

30 first adjustment means

31 arrangement area

32 power supply line(s)

33 second holding unit

34 second lanyard 35 second holding means

36 second connection area

37 additional front end area of 5

38 end range of 35

39 free end area of 35

40 first connection section

41 first supply facility

42 ballasts

43 second connection section

44 further connecting section

45 connecting part

46 retaining struts

47 fasteners

48 slag casings

49 injection opening

50 pre-filters

51 inlet grille

52 main filters

53 service room

54 discharge device a angle ß angle between 25 y angle between 25 ö angle between 5

S, Si, S2 central axis radiation source

R center axis reflector

A Length of an air conditioning system according to the invention

B Length of an air conditioning system known from the prior art

C Height of an air conditioning system according to the invention

D Height of an air conditioning system known from the prior art

E Width of an air conditioning system according to the invention

F Width of an air conditioning system known from the prior art

Claims

Patent claims:

1 . Air conditioning system (10) for air purification of buildings, in particular residential, office, administrative and/or industrial buildings, preferably in accordance with DIN 1946 (as of April 2023), more preferably for arrangement in air building purification systems, with at least one cyclone separator (7) for separation of solid and/or liquid particles of a gaseous medium, in particular air, and at least one irradiation device (1) assigned to the cyclone separator (7) for UV irradiation, in particular UV-C irradiation, of the gaseous medium flowing through the irradiation device (1), in particular Air, preferably for inactivating microorganisms present in the medium, such as bacteria, germs, mold and/or viruses.

2. Air conditioning system according to claim 1, characterized in that the cyclone separator (7) has a cyclone housing (9) through which the medium can flow with a first inlet (11), a particle outlet (12) for the particles separated from the medium flow and a gas outlet ( 13) for the medium stream freed from the separated particles, in particular wherein the particle outlet (12) is assigned a removal device (54) for, preferably continuous, removal of the separated particles, preferably for removing the particles in the removal device (54) a transport medium, in particular air and/or water, can be used.

3. Air conditioning system according to claim 1 or 2, characterized in that the irradiation device (1) has a housing inlet (2) and a housing outlet (3) for the medium and at least one arranged inside the housing (4). , UV radiation emitting radiation source (5) for irradiating the medium flowing through the housing (4).

4. Air conditioning system according to one of the preceding claims, characterized in that the first inlet (11) and / or the housing outlet (3) is designed to be arranged on at least one pipe and / or hose, in particular air pipe and / or air hose.

5. Air conditioning system according to one of the preceding claims, characterized in that the at least one radiation source (5) UV radiation in a wavelength range of at least 240 nm to 300 nm, preferably in a wavelength range of 250 nm to 285 nm, more preferably of 270 nm to 280 nm and in particular from 254 nm +/- 10% and / or from 278 nm +/- 10%.

6. Air conditioning system according to one of the preceding claims, characterized in that the air conditioning system (10) can be operated without a filter, in particular free of a HEPA filter, and/or is.

7. Air conditioning system according to one of the preceding claims, characterized in that the irradiation device (1) is connected upstream and/or downstream of the cyclone separator (7) and/or is at least partially integrated into the cyclone separator (7), in particular wherein the gas outlet (13) opens into or forms the housing inlet (2) and/or in particular wherein the housing inlet (2) is arranged in the gas outlet (13).

8. Air conditioning system according to one of the preceding claims, characterized in that a dip tube (14) of the cyclone separator (7) having the gas outlet (2) is provided for discharging the medium flow from the cyclone housing (9), in particular wherein the dip tube (14) forms and/or has the housing inlet (2) of the housing (4) and/or in particular wherein the depth of the dip tube (14) protruding into the cyclone housing (9) can be changed.

9. Air conditioning system according to one of the preceding claims, characterized in that the cyclone separator (7) is designed as an axial separator and / or direct current separator and / or that the cyclone separator (7) has a swirl generator (15), preferably arranged in the cyclone housing (9). for generating a rotation of the medium, in particular a rotatable and/or adjustable swirl generator (15) which has a plurality of deflection blades (16).

10. Air conditioning system according to one of the preceding claims, characterized in that a blower device (17) for outside air and/or inside air intake and/or blowing out, preferably on the one hand for outside air intake and inside air intake and/or on the other hand Outside air blowing and inside air blowing is provided, in particular wherein the blower device (17) is assigned to the cyclone separator (7) and / or the irradiation device (1) in such a way that the medium flow flows through the housing (4) and / or the cyclone housing (9), in particular wherein the blower device (17) is arranged in the cyclone separator (7) and/or in particular where the swirl generator (15) additionally forms the blower device (17) and/or in particular where the swirl generator (15) generates the forced flow.

11. Air conditioning system according to one of the preceding claims, characterized in that a temperature control device (18) for regulating the thermal room climate in the building, in particular residential, office, administrative and / or industrial buildings, preferably for heating and / or Cooling of the medium flow is provided, in particular wherein the temperature control device (18) is arranged upstream and/or downstream in the irradiation device (1) and/or the irradiation device (1), in particular wherein the temperature control device (18) has at least one infrared lamp ( 19) and/or in particular wherein the temperature control device (18) has at least one heat exchanger, in particular a plate heat exchanger and/or tubular heat exchanger.

12. Air conditioning system according to one of the preceding claims, characterized in that an injection device (20) for injecting a liquid, in particular water and/or a disinfectant liquid, is provided for humidity regulation and/or for disinfection of the medium flow, in particular wherein the injection device (20 ) is arranged upstream of the irradiation device (1) and/or in the housing inlet (2).

13. Air conditioning system according to one of the preceding claims, characterized in that a plurality of cyclone separators (7) and / or irradiation devices (1) are provided, in particular wherein the cyclone separators (7) are connected in series and / or parallel to one another and / or in particular wherein in a serial arrangement of the cyclone separators (7) an irradiation device (1) is arranged between two cyclone separators (7) arranged one behind the other and/or in particular wherein in the parallel arrangement of the cyclone separators (7) each first gas outlet (13) of a cyclone separator ( 7) an irradiation device (1) is assigned or in particular in the parallel arrangement the cyclone separator (7) of an irradiation device (1) is assigned a plurality of first gas outlets (13) from cyclone separators (7), wherein, preferably, a single irradiation device (1) is provided for all cyclone separators (7).

14. Air conditioning system according to one of the preceding claims, characterized in that the temperature control device (18), the injection device (20) and / or the irradiation device (1) can be controlled and / or regulated by a control and / or regulating device, in particular from one another independent.

15. Ventilation system according to one of the preceding claims, characterized in that the ventilation system (10) is designed such that the flow velocity of the medium stream in the irradiation device (1) is between 2 to 20 m/s, preferably between 2.5 to 10 m / s, and / or that the ventilation system (10) is designed such that a turbulent flow of the medium flow is present in the irradiation device (1), in particular where the Reynolds number of the flow in the irradiation device (1) is greater than 2300 is.

16. Use of a ventilation system (10) according to one of claims 1 to 15 for air purification of buildings, in particular residential, office, administrative and/or industrial buildings.

17. Use of a ventilation system according to claim 16, characterized in that the flow velocity of the medium stream in the irradiation device (1) is between 2 to 20 m/s, preferably between 2.5 to 10 m/s.

18. Use of a ventilation system (10) according to one of the preceding claims, characterized in that a turbulent flow of the medium flow is present in the irradiation device (1), in particular wherein the Reynolds number of the flow in the irradiation device (1) is greater than 2300 is.