WO2021228416A1 - Procédé de préparation de mesures d'assainissement, procédé de réalisation de mesures d'assainissement et procédé de surveillance de mesures d'assainissement - Google Patents

Procédé de préparation de mesures d'assainissement, procédé de réalisation de mesures d'assainissement et procédé de surveillance de mesures d'assainissement Download PDF

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Publication number
WO2021228416A1
WO2021228416A1 PCT/EP2020/065694 EP2020065694W WO2021228416A1 WO 2021228416 A1 WO2021228416 A1 WO 2021228416A1 EP 2020065694 W EP2020065694 W EP 2020065694W WO 2021228416 A1 WO2021228416 A1 WO 2021228416A1
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WO
WIPO (PCT)
Prior art keywords
area
usage
air
suction
room
Prior art date
Application number
PCT/EP2020/065694
Other languages
German (de)
English (en)
Inventor
Silvano GEORG
Michael Dieter DECHERT
Original Assignee
Georg Silvano
Dechert Michael Dieter
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg Silvano, Dechert Michael Dieter filed Critical Georg Silvano
Priority to US17/925,176 priority Critical patent/US20230175714A1/en
Priority to PCT/EP2021/062872 priority patent/WO2021229074A2/fr
Priority to EP21727398.6A priority patent/EP4150268A2/fr
Priority to CA3186155A priority patent/CA3186155A1/fr
Priority to AU2021271182A priority patent/AU2021271182A1/en
Publication of WO2021228416A1 publication Critical patent/WO2021228416A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/40—Pressure, e.g. wind pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F24F2120/14—Activity of occupants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/40—Noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the invention relates to a method for preparing decontamination measures within a room located in a building and used by people.
  • the invention further relates to a method for carrying out decontamination measures in the room located in a building and used by people, the method for preparing decontamination measures having been carried out beforehand.
  • the invention also relates to a method for monitoring the decontamination measures carried out with the above-mentioned method.
  • Decontamination measures are known from practice with which, for example, an object contaminated with contaminations that are harmful to the environment or to persons can be decontaminated.
  • the contaminations to be removed can be radioactive, biological or chemical contaminants, for example.
  • the objects in question can be brought into a cleaning room provided for this purpose, where they can be cleaned and decontaminated. It is also known from practice that with portable cleaning devices, objects or people can be decontaminated at a location at which contamination occurs or at which decontamination is to be carried out temporarily. In various areas such as pharmaceuticals or semiconductor production, industrial process steps that require the cleanest possible environment are carried out in specially designated clean rooms.
  • Standardized clean room classes are known, the air purity classification being subdivided for individual particle size ranges on the basis of the particle concentrations. Since in many cases a clean room is mainly contaminated by people entering the room and staying in the room, many clean rooms are designed so that the number of people staying in them is kept as low as possible and, in particular, the frequency is minimized as much as possible , with which individual persons enter or leave the clean room.
  • decontamination measures developed and designed accordingly for such clean rooms are not necessarily suitable for rooms with changing public traffic. Nevertheless, it can be advantageous to continuously carry out decontamination measures in a room within a building that is used by several or many people in order to keep the risk of contamination of individual persons who are in the room as low as possible.
  • this object is achieved in that, in a planning acquisition step, several usage areas within the room are identified based on a predetermined usage concept and for each usage area based on beforehand Determined parameters an expected intensity of use are determined, and in a subsequent planning implementation step for each area of use based on the expected intensity of use, a suction device assigned to this area of use with an assigned suction volume flow is specified.
  • An essential aspect of the method according to the invention is the division of the room into different usage areas, which is individually adapted to a usage concept of the room. The correspondingly divided space then has several usage areas and one or, if necessary, several non-usage areas that are separate from one another.
  • an intensity of use that is likely to occur when the room is used as intended is determined by people who are in the area of use in question.
  • the individual persons are seen as a potential cause of contamination of the room, so that a higher risk of contamination is assumed in areas of use with a high level of use.
  • the contamination can take place, for example, through impurities carried along from outside the room. It is also possible that the individual persons
  • the assigned intensity of use can be determined for each area of use, on the basis of which the necessary decontamination measures are then determined and specified.
  • the decontamination measures include in particular the suction of air from the area of use in order to suck the airborne particles such as dust or viruses from the area of use before contamination of other people can occur who are also in the same area of use or at a different position within the The room.
  • the relevant parameters such as a cross-sectional area of a suction opening, the distance and the orientation of the suction opening relative to the people when the area of use in question is used as intended, and the maximum suction power or the maximum suction volume flow that can be generated with the suction device are determined and implemented for each suction device given.
  • Suction volume flow is specified, with which a sufficiently large suction power can be realized in order to be able to suck off the impurities released into the air by a person sufficiently quickly and efficiently and thereby prevent contamination from other people in the same room.
  • Every exhaled air stream contains a cloud of droplets with numerous aerosols of various sizes.
  • the size of the aerosol particles can range from invisible droplets with a diameter of less than 10 ⁇ m to clearly visible droplets with a diameter of more than 50 ⁇ m. While the larger droplets from the exhaled air flow sink rapidly downwards and are deposited on surfaces located there, small droplets in particular remain in the exhaled air flow for a long time and can be distributed as suspended particles in the environment.
  • suction power can be determined for each area of use that is required to extract the aerosols exhaled by the people in the area of use as comprehensively as possible from the area of use and thereby prevent exhaled aerosols from settling in Can distribute neighboring areas of use.
  • a single suction device can be assigned to several separate usage areas within the room. In this case, it is not considered necessary, but advantageous if the suction device has at least one suction opening for each area of use, through which a portion of the suction volume flow generated by the suction device can be sucked in. The assignment of a single suction device to several areas of use is particularly advantageous when the areas of use are of a comparable intensity of use.
  • a specific air flow can be specified for each individual suction device.
  • a targeted air flow includes, in particular, the suction area, which is captured by the suction device and from which the suction volume flow is extracted.
  • a standard suction power can be specified so that when the suction device is operated with the specified standard suction power, the sucked air is sucked in predominantly or exclusively in a specified environment around the suction opening and, at the same time, a unwanted turbulence within the usage area or compensatory currents perceptible to people from outside the usage area can be reduced or avoided.
  • supplementary structural measures can also be specified in the planning implementation step, for example in order to achieve targeted air guidance or an air flow course specified or supported by these structural measures within the usage area, for example by means of partition walls or appropriately arranged surfaces within or in the immediate vicinity of the usage area.
  • a non-use area in a room differs from a use area in the room in that it is assumed that people are only comparatively seldom in the non-use area, so that no separate extraction of room air from the
  • Non-usage area is required.
  • the extraction of air from the usage areas forces air to circulate within the room, so that air from the non-usage area will also flow into a usage area and be extracted there.
  • a suction device is additionally provided at a suitable point within the room, which, in addition to the individual suction devices in the areas of use, removes air from the room
  • an air supply device assigned to this use area with an assigned supply air volume flow is specified for each usage area based on the expected usage intensity.
  • the amount of air extracted with a suction device must be returned to the area of use in order to avoid excessive negative pressure in the area of use, which could impair the intended use of the area of use by people.
  • the use of an air supply device assigned to the area of use in question is regarded as advantageous. Depending on the expected usage intensity
  • a supply air volume flow adapted to this can be specified for the air supply device.
  • fresh air is supplied to the room with a suitable air supply device.
  • Both a single air supply device, which supplies fresh air to the room at a suitable point, and the air supply devices assigned to the individual areas of use are equipped with a
  • portable or permanently installed filter devices can be specified.
  • HEPA filters that meet the requirements of filter classes H13 or H14 in accordance with the EN 1822-1: 2009 standard and are referred to as HEPA filters are suitable for many applications.
  • a blow-in opening of the air supply device is adapted in terms of its dimensions and arrangement to the suction opening of the suction device for the relevant area of use and that the blow-in opening is arranged opposite the suction opening, so that the suction device essentially extracts the amount of air supplied by the air supply device will. If necessary, an essentially laminar flow can be provided from the injection opening to the suction opening.
  • the suction power of the suction device and the conveying power of the air supply device are then expediently coordinated with one another, so that no pressure difference can build up during operation.
  • an air curtain surrounding the area of use is generated along a peripheral edge of the area of use, with which an exchange of air quantities between the area of use and the environment is reduced or largely prevented.
  • it can also be expedient to shield a usage area with such an air curtain from the surroundings only along a section of the peripheral edge of the usage area, for example in order to separate two adjacent usage areas with a high usage intensity from each other separate, while an air curtain to adjacent areas without major use intensity is not required.
  • a suction flow to be specified for each area of use by the suction device assigned to this area of use and, if necessary, by the air supply device for this area of use, at a predeterminable breathing air level, which conveys air from the breathing air level to the suction device.
  • the breathing air height can be specified as the height within the usage area at which the people using the usage area exhale most of the breathing air volume when using the usage area as intended.
  • the arrangement and the operating properties of the suction device and, if applicable, the air supply device can generate a suction flow in the area of use that is sufficient to remove exhaled aerosols at the breathing air level to be recorded to a predeterminable size and to be carried along with the suction flow.
  • Investigations have shown that in many applications the suction flow can be specified in such a way that aerosols up to a diameter of approx Stay in the usage area is perceived.
  • the suction flow forms an air curtain directed towards the suction device through the air supply device for this usage area, with which at least two usage cells are specified within the usage area, between which an exchange of air is prevented at least at the predeterminable breathing air level.
  • the air curtain forms a vertical air curtain that can reduce or completely prevent an exchange of air between opposite sides of the air curtain.
  • the suction flow can flow from bottom to top or from top to bottom depending on the arrangement and orientation of the suction device and the air supply device in the area of use.
  • furniture is arranged within the usage area and that people stay at this furniture when the usage area is used as intended.
  • An example of this is a dining table in a restaurant, at which one or more people can be entertained on opposite sides.
  • the air supply device can then, for example, have a strip-shaped outlet opening that is arranged on the dining table and open upwards, and the suction device can be arranged above the outlet opening above the breathing air level, so that a strip-shaped vertical air curtain is created from the outlet opening to the suction device.
  • the strip-shaped outlet opening can run, for example, along the center of the table of the dining table and use the air curtain to separate utility cells located on both sides of the dining table within the utility area, so that those exhaled by a person on a first side of the dining table Breathing air cannot get to someone on the opposite side of the dining table. It is also possible that each individual seat at the dining table is surrounded by an air curtain and thereby delimited from adjacent or opposite seats.
  • Air supply devices with a respectively assigned supply air volume flow can take into account a negative pressure prevailing in the room, so that other specifications than in a room without negative pressure are determined and specified.
  • disinfection measures to be carried out are specified at time intervals, which are carried out with a disinfection device in the room.
  • a disinfection device in the room For example, it can be specified that the room is disinfected with a cold misting device at regular intervals during a period of non-use by people, for example overnight. It can also additionally or alternatively be specified that individual or all surfaces in the room are decontaminated at regular intervals, for example by wiping the surfaces or spraying them with a decontamination agent.
  • suitable decontamination measures can be prepared that can be implemented in a restaurant or at a workplace in order to reduce the risk of contamination of people who are in the same room.
  • comparatively intensive decontamination measures are carried out in periods in which there is expected to be a considerable risk of contamination from many people, so that during other times with a low risk of contamination the decontamination measures are only carried out with a low intensity or are temporarily suspended.
  • the invention also relates to a method for carrying out decontamination measures in a room located in a building and used by people, the method described above for preparing these decontamination measures being carried out for the decontamination measures.
  • the operation of individual suction devices is adapted to actual use of the assigned area of use by people and a suction volume flow extracted with the suction device concerned is specified between a minimum value and a maximum value specified for the suction device in question.
  • a suction volume flow reduced to zero or the switching off of the suction device concerned can be specified as the minimum value.
  • the maximum value specified for a suction device can either be a maximum possible operating power of the suction device or be adjusted and specified during the preparation of the decontamination measures depending on the expected intensity of use of the area of use.
  • the operation of individual suction devices is expediently adapted to the actual use of the assigned usage area, thereby enabling the decontamination measures to be carried out particularly efficiently. If there are no or only a few people in the area of use, the suction power of the suction device assigned to this area of use can be reduced. In the case of a comparatively higher intensity of use, the operation of the associated suction device can be adapted and intensified. Since the decontamination measures carried out in the individual areas of use can be individually adapted to the actual use or to the stay and activity of people within the area of use, only the actually required decontamination measures or the necessary decontamination measures are only carried out with the necessary intensity. As a result, considerable operating costs can be saved when carrying out the decontamination measures. In addition, the impairment of individual people by the decontamination measures carried out in the room can be reduced and the acceptance of the people for the decontamination measures can be increased as a result.
  • the adaptation of the operation of individual suction devices to the actual use of the respectively assigned Usage area can be done manually.
  • the currently desired suction power or the suction volume flow extracted with the suction device could be specified individually for each suction device with a suitable control device.
  • a usage area is monitored with a sensor device assigned to this usage area, and that the operation of the assigned suction device is adapted based on the sensor signals of the sensor device.
  • the sensor device can, for example, have a decibel measuring device and / or a movement sensor, with which a volume prevailing in the usage area or a movement of people in the usage area is recorded. It has been shown that for many application areas the volume prevailing in a usage area represents a suitable parameter for an actual use of this usage area. The more intense and louder individual conversations are conducted within a usage area, the higher the risk that contaminations such as viruses will be released into the ambient air.
  • the presence of people in a usage area can be monitored with a motion sensor. Using the sensor signals from the decibel measuring device or the motion sensor, the operation of the suction device assigned to this area of use can then be controlled, so that automatic adaptation to changing conditions of use within the individual areas of use is possible.
  • the usage areas can be adapted to individual tables within a guest room and specified accordingly.
  • a decibel measuring device optionally arranged on the associated suction device, a volume prevailing in the area of use can be recorded.
  • an additional motion sensor it can be determined whether there are people at the table in the usage area, or whether the noises detected with the decibel measuring device originate from neighboring tables or from people who are outside the usage area. In these cases, individually adapted operation of the suction device assigned to this area of use can be set and specified.
  • the operation of air supply devices is adapted to the operation of the suction devices and a supply air volume flow supplied with an air supply device is adapted to an exhaust air flow extracted with the suction device.
  • the room In order to enable a further reduction in the risk of contamination in the room in addition to the decontamination measures that are carried out continuously, provision is optionally made for the room to be disinfected at intervals using a disinfection device. For example, during periods in which only a very small number of people or no people are in the room, the room can be disinfected using suitable disinfection devices. For this purpose, for example, with a
  • a disinfectant can be atomized in the room, so that the disinfectant is deposited on all accessible surfaces and the surfaces are decontaminated. Provision can also be made for all surfaces or surfaces within usage areas with increased usage intensity to be disinfected at time intervals. The intensity of such an additional disinfection of the room with disinfectants and separate disinfection devices can be adjusted manually or automatically to the actual use of the room. The use of the room can be estimated or determined based on the recorded use of the individual areas of use.
  • the invention also relates to a method for monitoring the aforementioned decontamination measures. It is provided according to the invention that with a
  • Monitoring device at least one property of the air volume located in the room is detected and a monitoring signal is generated if a value outside a predetermined property range is detected for the at least one monitored property.
  • the monitoring device can have at least one and, if necessary, several measuring sensors with which a property of the air volume located in the room that is relevant for the decontamination measures can be measured. As long as the measured values of the measuring sensors are within a range that has been specified for the property in question, no change or adaptation of the decontamination measures is necessary. However, as soon as a measured value lies outside the specified range of properties, an adaptation of the decontamination measures can be expedient and can be carried out either by manual intervention or in an automated manner.
  • the monitored properties of the volume of air in the room can be any properties that may be relevant for the people in the room and for the expected use of the room by these people. For example, the carbon dioxide content of the room air can be monitored.
  • the monitoring device is used to detect a pressure difference between the air volume monitored using the method and an ambient pressure outside the monitored space. It has been shown that, especially when individuals stay for a longer period of time In the room an excessive pressure difference between the volume of air located inside the room and the usual air pressure in the environment or outside the monitored room is perceived as unpleasant and can even lead to a noticeable impairment of the person. It is known that an excessive pressure difference and, in particular, a long-lasting negative pressure in a room can lead to considerable damage to the people staying in it and even death. A pressure difference of less than 10 Pa is considered advantageous. For this reason, continuous monitoring of the pressure difference that is generated by the operation of the suction devices is an important measure accompanying the implementation of the decontamination measures. The pressure difference can be carried out with commercially available pressure difference measuring devices, as they are also used for the blower door tests known from practice.
  • the monitoring device detects a contamination content of the air volume monitored with the method.
  • the number of suspended particles can be recorded or estimated, which are recorded with the monitoring device within a predetermined period of time. This number can be viewed as a parameter for a contamination of the room with the suspended particles in question.
  • the implementation of the decontamination measures and in particular the operation of the individual suction devices can then be carried out as a function of the monitoring signals of the monitoring device and consequently, for example, as a function of one with the monitoring device detected contamination content can be adjusted so that a higher suction power is specified for the suction devices in the event of a higher contamination content.
  • Figure 1 is a schematic view of a floor plan of a guest room of a restaurant, in which different usage areas are entered,
  • FIG. 2 shows a flowchart for an exemplary sequence of procedures for preparing, carrying out and checking decontamination measures
  • Figure 3 is a schematic partial view of the guest room shown in Figure 1 while the decontamination measures are being carried out
  • FIG. 4 shows a view of a workplace in a production plant while the decontamination measures are being carried out
  • FIG. 5 shows a representation of the guest room according to FIG. 3, air curtains being provided in each of the usage areas in order to reduce the spread of breathable air from people.
  • a guest room of a restaurant is shown as an example for a room 1 located in a building and used by people.
  • the illustrated floor plan of the room 1 shows several tables 2 for guests, a long counter 3 and an entrance area 4 and a cloakroom area 5.
  • different usage areas 6, 7, 8, 9 within the room 1 are first identified in a planning recording step, in which people will stay more often or longer if the room 1 is used as intended.
  • the usage areas 6, 7, 8, 9 identified in the exemplary embodiment include the tables 2 as well as a counter guest area 10 in front of the counter 3 and a counter service area 11 behind the counter 3.
  • the counter 3 is operated by a service who is usually in the counter service area 11.
  • the individual usage areas 6, 7, 8, 9 are each delimited areas within room 1.
  • a usage area of room 1 that is not covered by usage areas 6, 7, 8, 9 is viewed as non-usage area 12.
  • Planning implementation step determines an expected intensity of use in the case of normal and normal use of room 1 by people. For example, it is assumed that the seats at tables 2 during the operation of the restaurant are essentially used continuously by people who stay there longer and thereby create a considerable risk of contamination for other people who are in the same room 1 are located. A high usage intensity is assigned to these two usage areas 8, 9 delimited by a double-dot-dash line and a three-dot-dash line.
  • Use area 6, 7, 8, 9 assigned suction device and for each suction device one for the relevant use area 6, 7, 8, 9 and the expected one
  • Tables 2 is assigned to the highest.
  • the suction power of the suction device which is assigned to the usage area 7 of the counter guest area 10, is lower in comparison.
  • the lowest suction power is specified for the suction device that is assigned to the usage area 6 of the counter service area 11.
  • FIG. 2 an exemplary sequence of the method for decontaminating a room, for example room 1 in the restaurant, is shown schematically.
  • a planning acquisition step 13 several usage areas 6, 7, 8, 9 within the room 1 are identified based on a predetermined usage concept and are determined for each usage area 6, 7, 8, 9 based on previously determined
  • Parameters determined an expected intensity of use. In a subsequent planning implementation step 14, for each usage area 6, 7, 8, 9, based on the expected
  • the suction devices are operated at the same time as the room 1 is used by people.
  • a monitoring step 17 that is carried out simultaneously and for the duration of the decontamination measures is initiated. During the monitoring step 17 is with a
  • Monitoring device detects at least one property of the air volume located in the room 1 and a monitoring signal is generated if a value outside of a value for the at least one monitored property predetermined property range is captured. Depending on the recorded and monitored properties, the decontamination measures can be adjusted or suitable additional measures can be initiated.
  • operation of individual suction devices can be adapted to actual use of the assigned area of use by people and a suction volume flow extracted with the suction device in question can be specified between a minimum value and a maximum value specified for the suction device in question.
  • a usage detection step 18 can be carried out at time intervals or continuously and a parameter for an actual use of the usage areas 6, 7, 8, 9 in the room 1 can be determined with a suitable sensor device. Depending on the determined parameters, the respective suction device can then be adapted and, if necessary, operated more or less.
  • FIG. 3 shows a view of part of the room 1 during use by several people 19. Two people 19 are seated at the table 2 in the usage area 9. A person 19 is seated at the counter 3 in the counter guest area 10.
  • a suction device 20 is arranged above the table 2.
  • a further suction device 21 is arranged above the counter guest area 10.
  • the distance between the suction devices 20, 21 and the heads of the people 19 depends on the expected use of the respective person Usage area 9, 10 adapted by the people 19. This promotes targeted air guidance and the detection area of the suction devices 20, 21 is specified in such a way that, when used as intended, the heads of the people 19 are predominantly in this detection area.
  • Both suction devices 20, 21 are each equipped with a decibel measurement sensor 22 and with a movement sensor 23. If no movement is detected with the movement sensor 23 for a longer period of time, the associated suction device 20, 21 can be reduced in output or deactivated. In addition, the suction power of the suction devices 20, 21 can be adjusted by measuring the noise level with the decibel measuring sensor 22.
  • FIG. 4 shows an example of a workstation 24 in a production company which forms a usage area 25 indicated by a four-dot chain line.
  • a suction device 26 In addition to a suction device 26, an air-permeable grille 27 is arranged below the work station 24 and an air supply device 28 underneath. With the air supply device 28, filtered and purified fresh air is supplied. With the suction device 26, possibly contaminated air is sucked out of the usage area 25.
  • the suction device 25 has only one motion sensor 23, since the noise level usually prevailing in the production company superimposes the noises of the person 19 at the workplace 24 and one on the volume in the workplace 24 adapted control of the suction device 25 is not appropriate.
  • the delivery rate of the air supply device 28 is adapted to the suction capacity of the suction device 26, so that an air flow path running from the air supply device 28 to the suction device 26 is achieved and thus a targeted air flow is effected in the usage area 25 without additional structural measures.
  • a disinfection device 29 is arranged next to the workplace 24, which has a cold fogging device with which the workplace 24 and all surfaces located there are disinfected with an atomized disinfectant at intervals, for example every night.
  • FIG. 5 a further view of the room 1 shown in FIG. 3 is shown.
  • a strip-shaped outlet opening 29 of the air supply device 28, which is only indicated schematically, is arranged on an upper side of the table 2 in the usage area 9.
  • the strip-shaped outlet opening 29 is arranged in the middle of the table 2 between the two seats on opposite sides of the table 2 and extends essentially over the length of the table 2.
  • the filtered and cleaned fresh air flowing out through the strip-shaped outlet opening 29 is removed by the suction device 20 sucked in, which is above the table 2 is arranged. In this way, an air curtain with a predominantly laminar suction flow 30 from the strip-shaped outlet opening 29 of the
  • Air supply device 28 is formed on the upper side of the table 2 up to the suction device 20.
  • the suction flow 30 extends in the vertical direction in particular over the breathing air height 31, in which the persons 19 exhale most of the tidal volume when the usage area 9 is used as intended. In the example shown, this is the average head height of the people 19 sitting at the table 2.
  • the air curtain formed by the suction flow 30 divides the usage area 9 into two usage cells, which essentially correspond to the two seats. Each person 19 stays in the usage cell assigned to this person 19 for a longer period of time. The air curtain reduces air exchange between the two usage cells.
  • the aerosols exhaled by the persons 19, which may contain viruses or bacteria, in particular from the vicinity of the breathing air level 31, are captured and carried along by the suction flow 30, so that the aerosols are suctioned off particularly effectively by the suction device 20 and do not spread in the environment can.
  • a strip-shaped outlet opening 29 of the air supply device 28, not shown in detail, is also arranged on the counter 3 in the usage area 7.
  • the strip-shaped outlet opening 29 extends over the entire length of the counter 3.
  • Fresh air is fed into the usage area 8 through the strip-shaped outlet opening 29 and is sucked off by the suction device 21 above the counter 3.
  • This will also result in this Usage area 7 an air curtain is formed from an essentially laminar upwardly flowing suction flow 30, which shields the person 19 sitting in front of the counter 3 from a person standing behind the counter 3.
  • the breathing air height 31 is higher than specified in the usage area 9 due to the different sitting position and posture of the person 19.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

La présente invention concerne un procédé de préparation de mesures d'assainissement dans un espace (1) situé dans un bâtiment et utilisé par des personnes (19), qui comprend une étape d'évaluation de plan, consistant à identifier de multiples zones d'utilisation (7, 9) à l'intérieur de l'espace (1) sur la base d'un concept d'utilisation prédéfini et à déterminer une intensité d'utilisation prévue pour chaque zone d'utilisation (7, 9) sur la base de variables caractéristiques précédemment déterminées. Une étape ultérieure de mise en œuvre de plan, pour chaque zone d'utilisation (7, 9), sur la base de l'intensité d'utilisation attendue, consiste à utiliser une unité d'extraction (20, 21) associée à cette zone d'utilisation (7, 9) ayant un flux volumique d'aspiration associé. L'invention concerne également un procédé de réalisation des mesures d'assainissement, qui comprend l'adaptation, pendant l'exécution des mesures d'assainissement, d'une opération d'unités d'extraction individuelles (20, 21) à une utilisation réelle de la zone d'utilisation associée (7, 9) par des personnes (19), et la spécification d'un flux volumique d'aspiration extrait avec l'unité d'extraction correspondante (20, 21) entre une valeur minimale spécifiée pour l'unité d'extraction pertinente (20, 21) et une valeur maximale.
PCT/EP2020/065694 2020-05-15 2020-06-05 Procédé de préparation de mesures d'assainissement, procédé de réalisation de mesures d'assainissement et procédé de surveillance de mesures d'assainissement WO2021228416A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US17/925,176 US20230175714A1 (en) 2020-05-15 2021-05-14 Device and method for carrying out decontamination measures, method for preparing decontamination measures and method for monitoring decontamination measures
PCT/EP2021/062872 WO2021229074A2 (fr) 2020-05-15 2021-05-14 Procédé de préparation de mesures de décontamination, dispositif et procédé pour mettre en œuvre des mesures de décontamination et procédé de surveillance de mesures de décontamination
EP21727398.6A EP4150268A2 (fr) 2020-05-15 2021-05-14 Dispositif et procédé pour mettre en oeuvre des mesures de décontamination, procédé de préparation de mesures de décontamination et procédé de surveillance de mesures de décontamination
CA3186155A CA3186155A1 (fr) 2020-05-15 2021-05-14 Procede de preparation de mesures de decontamination, dispositif et procede pour mettre en oeuvre des mesures de decontamination et procede de surveillance de la decontaminationation
AU2021271182A AU2021271182A1 (en) 2020-05-15 2021-05-14 Device and method for carrying out decontamination measures, method for preparing decontamination measures and method for monitoring decontamination measures

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PCT/EP2020/063710 WO2021228410A1 (fr) 2020-05-15 2020-05-15 Procédé de préparation de mesures d'assainissement, procédé de réalisation de mesures d'assainissement et procédé de surveillance de mesures d'assainissement
EPPCT/EP2020/063710 2020-05-15

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PCT/EP2020/065694 WO2021228416A1 (fr) 2020-05-15 2020-06-05 Procédé de préparation de mesures d'assainissement, procédé de réalisation de mesures d'assainissement et procédé de surveillance de mesures d'assainissement

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Cited By (1)

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US20230107402A1 (en) * 2021-10-01 2023-04-06 Good Robot Monitoring Inc. Systems, devices, and methods for monitoring indoor air

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230167987A1 (en) * 2021-12-01 2023-06-01 Carrier Corporation Airborne contaminant abatement systems and methods

Citations (4)

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EP1054219A1 (fr) * 1999-05-21 2000-11-22 Jeven Oy Procédé et dispositif de ventilation
EP1134509A1 (fr) * 2000-03-17 2001-09-19 Stifab Farex AB Procédé et dispositif de commande pour une installation de ventilation
WO2013021466A1 (fr) * 2011-08-09 2013-02-14 日本たばこ産業株式会社 Procédé de ventilation de fumoir
WO2020003867A1 (fr) * 2018-06-28 2020-01-02 パナソニックＩｐマネジメント株式会社 Système et procédé de suppression d'infections à l'aide de gouttelettes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1054219A1 (fr) * 1999-05-21 2000-11-22 Jeven Oy Procédé et dispositif de ventilation
EP1134509A1 (fr) * 2000-03-17 2001-09-19 Stifab Farex AB Procédé et dispositif de commande pour une installation de ventilation
WO2013021466A1 (fr) * 2011-08-09 2013-02-14 日本たばこ産業株式会社 Procédé de ventilation de fumoir
WO2020003867A1 (fr) * 2018-06-28 2020-01-02 パナソニックＩｐマネジメント株式会社 Système et procédé de suppression d'infections à l'aide de gouttelettes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230107402A1 (en) * 2021-10-01 2023-04-06 Good Robot Monitoring Inc. Systems, devices, and methods for monitoring indoor air

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