Apparatus for treating the air of at least one room

Abstract

The present invention relates to devices for treating the air of at least one room, which are particularly distinguished by the fact that they are able to provide at least one room with air that is low in bacteria, germs and odors. For this purpose, the system has at least one air supply line supplying treated air, each of which has at least one air treatment device, including at least one ionization module, an air flow sensor, and an air humidity sensor. At least one exhaust line has at least one air quality sensor. Furthermore, there is at least one dust measurement device located before the ionization module and / or at least one dust measurement device located in the exhaust line. The ionization module, the sensor, and the dust measurement device are connected to a data processing system for increasing or decreasing the ionization intensity. Furthermore, at least one device for measuring the load current of the ionization module is connected to the data processing system, and the data processing system assigns the operating state of the ionization module when the load current changes as a function of the measurement value of the dust measurement device.

Description

[Technical field]

[0001] The present invention relates to an apparatus for treating the air of at least one room. [Background technology]

[0002] The air in a room can be treated with an ionizer. Bacteria and other germs are killed and large molecules are broken down into smaller molecular fragments. Since complex and large molecules are, among other things, odorous substances, odor pollution can be suppressed by air ionization. In addition, microorganisms in the air can also be effectively reduced.

[0003] In ionizers, an electric field between two electrodes with electrical potential is used to produce ions by impact ionization with a gas discharge. For this purpose, known ionizer tubes in the form of glass tubes with internal and external electrodes can be used. When a sufficiently high voltage is applied due to the gas discharge, the glass of the walls forms a dielectric in which a large electric field exists. The flowing air is enriched with ions.

[0004] Patent document 1 discloses a process for treating air with ions and a device for carrying out the process, in which the long-term stability of the ionizer is improved. The main focus is to avoid an increase in ozone production. For this purpose, sensors in the form of air quality sensors, air flow sensors and air humidity sensors are used. In the event of both external interference sources occurring, for example in the case of smog, weather inversions, thunderstorms, external energy fields, and internal interference sources as a result of the operation of electrical equipment, the load of ozone in the supply air can increase to an undesirable extent and exceed limit values.

[0005] US Pat. No. 5,399,633 describes an apparatus for carrying out the method of treating air with ions and measuring the ozone content with the additional use of an ozone sensor. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] German Patent No. 4334956 [Patent Document 2] German Patent No. 10007523 Summary of the Invention [Problem to be solved by the invention]

[0007] The invention as defined in claim 1 is based on the problem of providing air that is low in bacteria, germs and odors in at least one room. [Means for solving the problem]

[0008] This object is achieved by the features set forth in claim 1. The device for treating the air of at least one room is distinguished in particular by the fact that it is able to provide the at least one room with air that is low in bacteria, germs and odors.

[0009] Within the meaning of the present invention, the air treatment device has at least one intake air line supplying treated air and in each case at least one air treatment device having at least one ionization module with a plurality of ionization tubes, an air flow sensor and an air humidity sensor. According to the present invention, at least one exhaust air line has at least one air quality sensor. According to the present invention, at least one dust measuring device arranged in the flow direction of the intake air upstream of the ionization module and / or at least one dust measuring device arranged in the exhaust air line is further provided. According to the present invention, the data processing system is connected to the ionization module, the air flow sensor, the air humidity sensor, the air quality sensor and the dust measuring device upstream of the ionization module and / or the dust measuring device in the exhaust air line in order to increase or decrease the ionization intensity according to the measured values ​​of the air flow sensor, the air humidity sensor, the air quality sensor and the dust measuring device upstream of the ionization module and / or the dust measuring device in the exhaust air line. Within the meaning of the present invention, the at least one device for measuring the load current of the ionization module and / or the at least one ionization tube of the ionization module is further connected to a data processing system, which assigns an operating state of the ionization module if the load current of the ionization module or at least one ionization tube changes and / or if the load current of the ionization module or at least one ionization tube changes as a function of the measured value of the dust measuring device.

[0010] With the help of the device, improved room air for the room occupants is achieved. This is done taking into account the parameters that influence the ionization effect and taking into account the applicable limit values. For this purpose, outside air and / or circulated air can enter the room as room exhaust air via the air treatment device after treating the air as supply air via the supply air line. As a result, the room occupants enjoy a lower VOC concentration, a lower number of bacteria and germs, as well as a lower PM concentration (PM - particulate matter, equal to fine dust) in the indoor air they inhale. VOCs in this context are volatile organic compounds (VOCs), e.g. cigarette smoke, kitchen smoke, human vapors or outgassing of materials (e.g. furniture, carpets, glues, etc.). The use of the device therefore improves indoor air hygiene.

[0011] For this purpose, the air quality sensor used can be a metal oxide semiconductor gas sensor that can also be used to detect volatile organic substances / compounds (VOCs).

[0012] By means of at least one device for measuring the load current of the ionization module and / or at least one ionization tube of the ionization module, the ionization output of the at least one ionization tube, which decreases as a result of aging, can advantageously be determined as an operating state of the ionization module. For this purpose, the load current is the current that flows through the ionization module and / or the at least one ionization tube during operation. In combination with a dust measuring device, the ionization output, which decreases when the at least one ionization tube is contaminated, can be determined as an operating state of the ionization module. For this purpose, the change in the load current compared to the nominal load current is determined. The nominal load current can be the load current during initial commissioning or during restart (e.g. after maintenance) of the air treatment device.

[0013] In an embodiment, the air treatment device is designed as a structural unit of an air conditioning system. Furthermore, the air treatment device can also be a structural unit of an indoor air device.

[0014] For this purpose, the operating state can be assigned and displayed as at least one characteristic value in a graphic and / or table and / or color scale, to which preferably the respective time is assigned.

[0015] Advantageous embodiments of the invention are set forth in claims 2-11.

[0016] According to one embodiment of the present subject matter, the device for measuring the load current of the ionization tube of the ionization module is connected to a data processing system, which is a data processing system that assigns changes in the operating state of the ionization tube when the load current of the ionization tube changes and / or when the load current of the ionization tube changes as a function of the measurements of a dust measuring device upstream of the ionization module and / or a dust measuring device in the exhaust line.

[0017] According to a further embodiment of the subject matter of the present invention, the exhaust line of the room is connected to a line for exhausting used air and / or a line for supplying fresh air, the line for supplying fresh air being further connected to an air treatment device.

[0018] According to a preferred embodiment, the used air discharge line has a first fitting and the line supplying fresh air has a second fitting. The actuators of the fittings are connected to a data processing system for varying the respective air flows. Thus, among other things, fresh air can be supplied or a recirculating air operation can be set. In an embodiment, the fittings are designed as valves or flaps.

[0019] According to a further preferred embodiment, the line supplying the fresh air has a further dust measuring device for measuring dust in the fresh air, the dust measuring device in the line supplying the fresh air being connected to a data processing system which increases the ionization power of the ionization module and / or the air flow as a function of the value of the dust measuring device in the line supplying the fresh air in case of an occurrence or increase of dust in the fresh air.

[0020] According to a further embodiment of the invention, the air flow sensor, the air humidity sensor, the air quality sensor and the dust measuring device upstream of the ionization module and / or the dust measuring device in the exhaust line are connected to a data processing system, which determines the air concentration in the room as a weighted model of the air flow, air humidity, air quality and dust depending on the size of the room and depending on the measurements of the air flow sensor, the air humidity sensor, the air quality sensor and the dust measuring device upstream of the ionization module and / or the dust measuring device in the exhaust line.

[0021] According to a further embodiment of the invention, at least one ozone sensor is arranged in the air supply line and / or in the exhaust line and / or in the line supplying the room and / or outside air, the ozone sensor being connected to a data processing system, which determines the ionization intensity according to the weights of the air humidity, air flow, air quality and dust and ozone limit values ​​from the measurements of the air humidity sensor, the air flow sensor, the air quality sensor and the dust measuring device upstream of the ionization module and / or the dust measuring device and the ozone sensor in the exhaust line, and detects a change in the ionization intensity. ,strange Depending on the change in the ionization output, the ionization power is changed to compensate and further decrease or increase the ionization intensity. ozone limits that would cause adverse or damaging effects should not be exceeded. do.

[0022] According to a further embodiment of the subject matter of the present invention, at least one carbon dioxide sensor is arranged in the supply air line and / or the exhaust air line and / or in the room, the carbon dioxide sensor being further connected to a data processing system, which takes into account the ionization intensity and modifies the supply air and / or the air flow when the carbon dioxide changes, so that the ionization intensity is determined as a function of the measurements of the air humidity sensor, the air flow sensor, the air quality sensor, the dust measuring device upstream of the ionization module and / or the dust measuring device in the exhaust air line, and reduces or increases the ionization intensity when a change occurs, so that the limit value of carbon dioxide is maintained. This is done by supplying fresh air and a fitting can be provided for that purpose.

[0023] According to a further embodiment of the present subject matter, an ionization module having an ionization tube is connected to a data processing system that controls the ionization output of the ionization tube using pulse width modulation (PWM) by switching fewer or more than 100 periods from a power supply system. In a preferred embodiment, these can be periods greater than 0 and less than or equal to 100 periods. In a further embodiment, the periods can be greater than 0 and less than or equal to 200 periods. When the load current of at least one ionization tube is changed, the pulse width modulation is changed in response to the change in the load current.

[0024] According to a further embodiment of the invention, the device for measuring the load current of the ionization tube of the ionization module and / or the device for measuring the load current of multiple ionization tubes of the ionization module is connected to a data processing system such that when the load current of at least one ionization tube is changed, the load currents of the other ionization tubes are changed relative to a known nominal load current.

[0025] According to a further embodiment of the invention, the data processing system is connected to an electromagnetic wave transmitter and / or transceiver and / or a data network and / or a computer network, so that the measurements of the air flow sensor, the air humidity sensor, the air quality sensor and the dust measuring device can be checked remotely.

[0026] To realize the present invention, it is also advantageous to combine the features of the above-mentioned embodiments, embodiments and claims in respective configurations.

[0027] The invention will be better understood and further objects and advantages thereof will become more apparent from the detailed description of the preferred embodiment taken in conjunction with the drawings, in which: [Brief description of the drawings]

[0028] [Figure 1] 1 shows an apparatus for treating the air of at least one room. [Diagram 2] 1 shows an apparatus for treating the air of at least one room with an additional ozone sensor, an additional carbon dioxide sensor and a further dust measuring device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] The invention relates to an air treatment device for at least one room (1), said device essentially consisting of an air supply line (2) supplying treated air, said air supply line (2) containing an air treatment device (3) containing an ionization module (4) with several ionization tubes, an air flow sensor (5), an air humidity sensor (6), an exhaust line (7) with an air quality sensor (8), a dust measurement device (9) arranged before the ionization module (4) and at least one dust measurement device (11) arranged in the exhaust line (7), and a data processing system (10) connected to the ionization module (4), the air flow sensor (5), the air humidity sensor (6), the air quality sensor (8), and the dust measurement device (9) before the ionization module (4) and / or the dust measurement device (11) in the exhaust line (7).

[0030] FIG. 1 shows in a schematic diagram an apparatus for treating the air of at least one room 1 .

[0031] The dust measuring device 9 is designed in particular so that even fine dust particles can be detected. Devices for dust measuring and for measuring fine dust particles are known.

[0032] The outside air and / or circulating air as exhaust air of the room 1 passes through the air treatment device 3 as supply air to the room 1 via the supply air line 2. The air treatment device 3 has an ionization module 4 with several ionization tubes, an air flow sensor 5, an air humidity sensor 6 and a dust measuring device 9 in front of the ionization module 4. The exhaust air line 7 for removing the indoor air has an air quality sensor 8 and a dust measuring device 11 in the exhaust air line 7. The air quality sensor 8 can be a metal oxide semiconductor gas sensor, in particular, even for volatile organic substances / compounds VOC. The exhaust air line 7 thus represents at the same time a circulating air line, and the exhaust air is again supplied as supply air. For this purpose, the circulating air line is connected to the device 3 for air treatment. The ionization module 4, the air flow sensor 5, the air humidity sensor 6, the air quality sensor 8 and the dust measuring devices 9, 11 are connected to a data processing system 10. The device thus designed for treating the air is a structural unit of a ventilation installation.

[0033] The data processing system 10 is designed to decrease or increase the ionization intensity depending on the measurements of the air flow sensor 5, the air humidity sensor 6, the air quality sensor 8 and the dust measuring devices 9, 11, so that the ionization intensity and / or air flow increases when air humidity and / or dust increases and when air quality decreases.

[0034] The air flow sensor 5, the air humidity sensor 6, the air quality sensor 8 and the dust measuring devices 9, 11 are for this purpose connected to a data processing system 10, which determines the indoor air concentrations as a weighted model of the air flow, air humidity, air quality and dust as a function of the room size and of the measurements of the air flow sensor 5, the air humidity sensor 6, the air quality sensor 8 and the dust measuring devices 9, 11. Furthermore, the data processing system 10 is the data processing system 10 which determines the average indoor air concentration from the model of the indoor air concentrations and assigns it to a limit value of the ionization intensity.

[0035] Figure 2 shows in a schematic diagram an apparatus for treating the air of at least one room 1 with an ozone sensor 17, a carbon dioxide sensor 18 and a further dust measuring device 16, which are added to the apparatus shown in Figure 1. In the following, reference is made to the reference numbers of the apparatus shown in Figure 1.

[0036] In one embodiment, the device for air treatment of at least one room 1 can further comprise an ozone sensor 17, a carbon dioxide sensor 18 and a further dust measuring device 16. One ozone sensor 17 each is arranged in the intake air line 2 and in the exhaust air line 7. The ozone sensor 17 can also be arranged in the line 13 supplying fresh air. The carbon dioxide sensor 18 is arranged in the exhaust air line 7 as a circulating air line. The further dust measuring device 16 is arranged in the line 13 supplying fresh air. Thus, the exhaust air line 7 of the room 1 can also be connected to the air treatment device 3 as a circulating air line. The exhaust air line 7 is also connected to the used air discharge line 12 in the form of an exhaust line with a first fitting 14 and to the line 13 supplying fresh air with a second fitting 15. The actuators of the fittings 14, 15 are connected to the data processing system 10 for varying the respective air flows. For this purpose, the fittings 14, 15 can be, for example, flaps.

[0037] The ozone sensor 17 is connected to the data processing system 10, which determines the ionization intensity according to the weights of air flow, air humidity, air quality, dust, and ozone from the measurements of the air flow sensor 5, air humidity sensor 6, air quality sensor 8, dust measuring devices 9, 11, 16, and the ozone sensor 17. If the ionization intensity changes, the ionization output is changed by the data processing system 10. ,strange Depending on the concentration, a further decrease or increase in ionization intensity is made to compensate. ozone limits that would cause adverse or damaging effects should not be exceeded. do.

[0038] In particular, the ozone sensor 17 can be arranged in the supply air duct 2, in the exhaust air duct 7 to measure the ozone in the room air and in the duct 13 supplying the outside air to measure the ozone in the outside air. Thus, if the ozone in the outside air is too high, the device for treating the air of at least one room can be made to operate in recirculating air mode.

[0039] The carbon dioxide sensor 18 is connected to the data processing system 10 so that, depending on the measurements of the air flow sensor 5, the air humidity sensor 6, the air quality sensor 8 and the dust measuring devices 9, 11, 16, the ionization intensity is determined and, in the event of a change in the ionization intensity, a decrease or increase is affected, the air supply and / or the air flow are changed, taking into account the ionization intensity, so that the limit value of carbon dioxide is maintained.

[0040] A further carbon dioxide sensor 18 connected to the data processing system 10 can be placed in the air supply line 2 and / or in the room 1 .

[0041] The ionization module 4 of the exemplary embodiment has a number of ionization tubes. At least one device for measuring the load current of the ionization tube in each case and / or a device for measuring the load current of the number of ionization tubes is connected to a data processing system 10, which assigns an operating state of the ionization module 4 if the load current of the ionization module or of the at least one ionization tube changes or if the load current of the ionization module or of the at least one ionization tube changes depending on the measured value of a dust measuring device 9 upstream of the ionization module 4.

[0042] The ionization module 4 with the ionization tube is also connected to the data processing system 10, which controls the ionization power of the ionization tube using pulse width modulation (PWM) by switching between a period greater than 0 and less than or equal to 100 periods from the power supply. Furthermore, at least one device for measuring the load current of the ionization tube of the ionization module 4 and / or a device for measuring the load current of the ionization tubes may be connected to the data processing system 10, so that when the load current of at least one ionization tube is changed, the load current of the other ionization tubes changes with respect to a known nominal load current. When the load current of at least one ionization tube is changed, the pulse width modulation is changed according to the change in the load current. [Explanation of symbols]

[0043] 1 room 2 Air supply line 3 Air Treatment Equipment 4 Ionization Module 5 Air Flow Sensor 6 Humidity Sensor 7 Exhaust Line 8 Air Quality Sensor 9 Dust measuring device in front of ionization module 4 10 Data Processing System 11 Dust measuring device in exhaust line 7 12 Spent air exhaust pipe 13. Outside air supply line 14 First Valve 15 Second Valve 16 Other dust measuring instruments 17 Ozone Sensor 18 Carbon Dioxide Sensor

Claims

1. An apparatus for treating the air of at least one room (1), comprising: at least one air supply line (2) supplying treated air, each of said air supply lines (2) having at least one air treatment device (3), each of said air treatment devices (3) having at least one ionization module (4) with a plurality of ionization tubes, an air flow sensor (5), and an air humidity sensor (6); at least one exhaust line (7) equipped with at least one air quality sensor (8); at least one dust measuring device (9) arranged upstream of the ionization module (4) and / or at least one dust measuring device (11) arranged in the exhaust line (7); a data processing system (10) connected to the ionization module (4), the airflow sensor (5), the humidity sensor (6), the air quality sensor (8), and the dust measuring device (9) upstream of the ionization module (4) and / or the dust measuring device (11) in the exhaust line (7) for increasing or decreasing the ionization intensity depending on the measurements of the airflow sensor (5), the humidity sensor (6), the air quality sensor (8), and the dust measuring device (9) upstream of the ionization module (4) and / or the dust measuring device (11) in the exhaust line (7); at least one device for measuring the load current of the ionization module (4) and / or of at least one ionization tube of the ionization module (4), connected to the data processing system (10); Including, The data processing system (10) is adapted to determine the operating state of the ionization module (4) when the load current of the ionization module (4) or at least one ionization tube changes or when the load current of the ionization module (4) or at least one ionization tube changes in response to the measured values ​​of the dust measuring device (9) upstream of the ionization module (4) and / or the dust measuring device (11) in the exhaust line (7).

2. 2. The device according to claim 1, characterized in that the device for measuring the load current of the ionization tube of the ionization module (4) is connected to a data processing system (10) which assigns the changes in the load current of the ionization tube and / or the changes in the load current of the ionization tube as a function of the measured values ​​of the dust measuring device (9) upstream of the ionization module (4) and / or the dust measuring device (11) in the exhaust line (7) to the data processing system (10).

3. 3. The device according to claim 1 or 2, characterized in that the exhaust line (7) of the room (1) is connected to a line (12) for discharging used air and / or to a line (13) for supplying fresh air, the line (13) being connected to the air treatment device (3).

4. 4. The device according to claim 3, characterized in that the line (12) for discharging used air has a first fitting (14) and the line (13) for supplying fresh air has a second fitting (15), the actuators of the fittings (14, 15) being connected to the data processing system (10) for varying the respective air flows.

5. 5. The device according to claim 3 or 4, characterized in that the line (13) supplying the outside air has a further dust measuring device (16) for measuring dust in the outside air, the dust measuring device (16) of the line (13) supplying the outside air being connected to the data processing system (10), and the data processing system (10) increases the ionization output of the ionization module and / or the air flow as a function of the value of the dust measuring device (16) of the line (13) supplying the outside air in case of the occurrence of dust or an increase in dust in the outside air.

6. 6. The device according to claim 1 , characterized in that the air flow sensor (5), the air humidity sensor (6), the air quality sensor (8) and the dust measuring device (9) upstream of the ionization module (4) and / or the dust measuring device (11) in the exhaust air line (7) are connected to the data processing system (10), which determines the air concentration in the room as a weighted model of the air flow, air humidity, air quality and dust depending on the size of the room and on the measured values ​​of the air flow sensor (5), the air humidity sensor (6), the air quality sensor (8) and the dust measuring device (9) upstream of the ionization module (4) and / or the dust measuring device (11) in the exhaust air line (7).

7. 4. The device according to claim 3, characterized in that at least one ozone sensor (17) is arranged in the supply air line (2) and / or in the exhaust air line (7) and / or in the line (13) supplying the room (1) and / or outside air, the ozone sensor (17) being connected to the data processing system (10), which determines from the measurements of the air humidity sensor (6), the air flow sensor (5), the air quality sensor (8) and the dust measuring device (9) upstream of the ionization module (4) and / or the dust measuring device (11) in the exhaust air line (7) and the ozone sensor (17) an ionization intensity according to weights of air humidity, air flow, air quality and dust and ozone limit values, and performs an adjustment of the change in the ionization output in case of a change in the ionization intensity and, depending on the change, a further decrease or increase of the ionization intensity in order not to exceed the harmful or damaging ozone limit values.

8. 8. The device according to claim 1 , characterized in that at least one carbon dioxide sensor (18) is arranged in the supply air line (2) and / or in the exhaust air line (7) and / or in the room (1), the carbon dioxide sensor (18) being connected to the data processing system (10), which takes into account the ionization strength so that the ionization strength is determined as a function of measurements of the air humidity sensor (6), the air flow sensor (5), the air quality sensor (8), the dust measuring device (9) upstream of the ionization module (4) and / or the dust measuring device (11) in the exhaust air line (7), and which varies the supply air and / or the air flow when the measured values ​​of carbon dioxide change and reduces or increases the ionization strength when a change in the measured values ​​of carbon dioxide occurs, such that the measured values ​​of carbon dioxide are maintained within the limits.

9. The device according to any one of claims 1 to 8, characterized in that the ionization module (4) with the ionization tube is connected to the data processing system (10) which controls the ionization output of the ionization tube using Pulse Width Modulation (PWM) by switching periods from a power supply.

10. 10. An apparatus according to claim 1, characterized in that the device for measuring the load current of the ionization tubes of the ionization module (4) in each case is connected to a data processing system (10) in such a way that, when the load current of at least one ionization tube is changed, the data processing system (10) changes the load current of the other ionization tubes compared to a known nominal load current, wherein the known nominal load current is the load current during initial commissioning or restart operation of the air treatment device.

11. Device according to any one of the preceding claims, characterized in that the data processing system (10) is connected to an electromagnetic wave transmitter and / or transceiver and / or a data network and / or a computer network.

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