WO2021228410A1

WO2021228410A1 - Method for preparing decontamination measures, method for carrying out decontamination measures and method for monitoring decontamination measures

Info

Publication number: WO2021228410A1
Application number: PCT/EP2020/063710
Authority: WO
Inventors: Silvano GEORG; Michael Dieter DECHERT
Original assignee: Georg Silvano; Dechert Michael Dieter
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-11-18
Also published as: WO2021228416A1

Abstract

In a method for preparing decontamination measures within a space (1) located in a building and used by people (19), in a plan assessment step, multiple usage areas (7, 9) are identified within the space (1) based on a predefined usage concept and an expected usage intensity is determined for each usage area (7, 9) based on previously determined characteristic variables. In a subsequent plan implementation step, for each usage area (7, 9), based on the expected usage intensity, an extraction unit (20, 21) assigned to this usage area (7, 9) is specified with an associated suction volume flow. In a method for carrying out the decontamination measures, during the execution of the decontamination measures, an operation of individual extraction units (20, 21) is adapted to an actual usage of the associated usage area (7, 9) by people (19), and a suction volume flow extracted with the relevant extraction unit (20, 21) is specified between a minimum value specified for the relevant extraction unit (20, 21) and a maximum value.

Description

Procedures for preparing decontamination measures,

Procedure for carrying out decontamination measures and

Procedures for monitoring decontamination measures

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. An often undesirable pollution concerns suspended particles in the air, which, depending on the size of the suspended particles, remain suspended in the air for a longer period of time and can be deposited and accumulate on all accessible surfaces. In these clean rooms, a volume of air located therein is usually continuously sucked off and replaced by filtered and purified supply air. In this way, impurities that are in the room air can be removed from the clean room and the clean room can be decontaminated. In order to avoid contamination by people or by objects carried along with people, lock systems are often required. In addition, it can be provided that a person wears separate clean-room clothing that is cleaned and does not contain any contaminating impurities while they are in the clean room.

Depending on the intensity of the decontamination measures carried out, such as, for example, the circulation of the air volume in the clean room and the filtering of the supply air, a different clean room quality can be achieved. 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.

The 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.

It is therefore seen as an object of the present invention to design a method for preparing decontamination measures in such a way that, depending on the desired result of the decontamination measures, the most efficient implementation of the decontamination measures is possible with as little effort as possible, and that the implementation of the decontamination measures at one Leads to the least possible impairment of the people in the room.

According to the invention, 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. For each area of use, 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

Bring or carry pathogens such as bacteria or viruses with them, which can be given off during the stay of the person in the relevant area of use. Experience has shown that there is a particularly high risk of contamination in people who are infected with a viral disease and who constantly release viruses into the surrounding air while breathing. The likelihood and intensity with which a person releases certain pollutants into the air can be determined by previous Estimation methods and tests can be estimated on the basis of previously determined parameters. Individual parameters can be, for example, the exhaled tidal volume of individual people during different activities or the floating properties and the dwell time of floating particles, which are viewed as undesirable contamination and are to be reduced with the decontamination measures.

On the basis of such information, 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. In the planning implementation step, 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.

It has been found to be advantageous that a separate suction device is assigned to each area of use and one for the suction device in question 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.

It is also possible for a single suction device to 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.

In the planning implementation step, 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. By specifying the dimensions of a suction opening of the suction device as well as the arrangement and orientation of the suction opening relative to the assigned usage area, it can be achieved, for example, that the air sucked out of the usage area with the suction means is mainly or almost exclusively sucked in from a smaller risk area within the larger usage area where the risk area is that sub-area is the area of use in which people's heads are located when used as intended. A standard suction power can be specified in such a way 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 an undesired turbulence within the area of use or compensatory flows of be reduced or avoided outside of the usage area.

If necessary, 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. However, in addition to the suction of air from the areas of use, it can be useful that 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

Vacuuming the non-use area. In this case, however, it is provided that the extraction of room air from the non-use area is operated with a lower suction power or with a lower suction volume flow than with the extraction from the usage areas in order not to impair the targeted extraction of air from the usage areas. Instead of an additional suction device, it can also be provided that all the individual suction devices assigned to the areas of use are operated with a slightly higher suction power in order to reduce an exchange time for a complete exchange of the room air also from the areas of non-use in the room. It has been shown that a 30-fold exchange of room air per hour significantly reduces the risk of contamination for the people in the room.

According to an advantageous embodiment of the inventive concept, it is provided that, in the planning implementation step, 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 would impair the intended use of the area of use by people could affect. In order to reduce the risk of contamination of an individual area of use by an uncontrolled influx of air from the environment, the use of an air supply device assigned to the area of use in question is regarded as advantageous. Depending on the expected

Intensity of use, a supply air volume flow adapted to this can be specified for the air supply device.

To compensate for the room air extracted with the individual suction devices, 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

Fresh air reservoir or connected to several fresh air reservoirs, the fresh air being filtered and cleaned in advance before being fed into the room. For this purpose, for example, 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.

By individually adapting the suction devices and the air supply devices to individual areas of use and the intensity of use expected for the respective areas of use, it is fundamentally possible to use different suction devices that are as efficient and inexpensive as possible for each area of use, or to plan and provide air supply facilities. In this way, such a concept of decontamination measures planned according to the invention can be implemented with the least possible effort and at low cost and can be carried out while the room is being used by people.

With a suitable specification of the air supply device, targeted air guidance can also be supported within a usage area. For example, it could be specified that 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.

It can be provided that a negative pressure is generated in the room while the decontamination measures are being carried out. The specifications for the individual suction devices with the respectively assigned suction volume flow for the individual areas of use and, if necessary, for any additional areas

Air supply devices with a respectively assigned supply air volume flow can be a prevailing in the room Consider negative pressure, so that other specifications than for a room without negative pressure are determined and specified.

According to an optional embodiment of the inventive concept, it is provided that in the planning implementation step, based on the expected usage intensity of all usage areas within the room, disinfection measures to be carried out are specified at time intervals, which are carried out with 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.

With the method according to the invention, for example, 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. In this context, it can also be specified that 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. According to the invention, it is provided that, while the decontamination measures are being carried out, 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. In many cases, 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 correspond to a maximum possible operating performance of the suction device, or it can be adapted and specified during the preparation of the decontamination measures as a function of the expected intensity of use of the area of use.

While the decontamination measures are being carried out, 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 adapted to the associated suction device 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. For example, 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.

According to a particularly advantageous embodiment of the inventive concept, it is possible and provided that actual use of 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, be a decibel measuring device and / or a Have motion sensor, with which a prevailing volume in the area of use or a movement of people in the area of use is detected. 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. If the decontamination measures according to the invention are carried out, for example, in a restaurant, the usage areas can be adapted to individual tables within a guest room and can be specified accordingly. With a decibel measuring device optionally arranged on the associated suction device, a volume prevailing in the area of use can be recorded. With the help of 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, an individually adapted operation of this area of use can be implemented assigned suction device can be set and specified.

Depending on the type of contamination feared, other sensor devices can also be used in order to automatically adapt the individual

To enable decontamination measures or the operation of the respective suction devices.

According to an advantageous embodiment of the inventive concept, it is provided that, while decontamination measures are being carried out, 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. By continuously adapting the supply air volume flow supplied with the air supply device to the exhaust air flow extracted with the suction device, it can be achieved that within a usage area no excessive pressure difference to adjacent areas or to the environment is generated. As a result, unwanted air flows across several areas of use or unwanted air circulation within the room can be reduced or completely avoided.

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, in 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 equipment. For this purpose, for example, with a

Cold fogging device, 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 was specified for the property in question, no change or adaptation of the decontamination measures is required. 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.

It is optionally provided that 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 long time in the room, an excessive pressure difference between the air volume inside the room and the usual air pressure in the environment or outside the monitored room is perceived as unpleasant and even leads to a noticeable impairment of the Person can lead. 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.

According to an advantageous embodiment of the inventive concept, it is provided that the monitoring device detects a contamination content of the air volume monitored with the method. For example, 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 adapted as a function of the monitoring signals from the monitoring device and consequently, for example, depending on a contamination level recorded with the monitoring device, so that a higher suction power is specified for the suction devices if the contamination level is higher.

In the following, exemplary embodiments of the inventive concept are explained in more detail, which are shown schematically in the drawing. It shows:

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,

FIG. 3 shows a schematic partial view of the guest room shown in FIG. 1 while the decontamination measures are being carried out, and FIG

FIG. 4 shows a view of a workplace in a production plant while the decontamination measures are being carried out.

In FIG. 1, a guest room of a restaurant is shown as an example for a room 1 located in a building and used by people. Several tables 2 for guests, a long counter 3 and an entrance area 4 and a cloakroom area 5 are shown in the floor plan of room 1, which is only shown schematically. In the method for preparing decontamination measures, 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. In the counter guest area 10, individual guests can sit or stand at the counter 3 stop and have drinks or small meals there. 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.

For each area of use 6, 7, 8, 9, a

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 used essentially continuously by people who stay there longer and thereby pose a significant risk of contamination for other people who are in the same room 1. 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.

The usage area 7, which is assigned to the counter guest area 10 and is shown with a single dash-dotted line, is assigned a mean usage intensity. The usage area 6, which corresponds to the counter service area 11, is assigned a low intensity of use, since the usage concept of this room 1 provides that the operating personnel only stay in the counter service area 11 when required and are otherwise also responsible for operating the tables 2. On the basis of the usage intensity determined in this way, for each usage area 6, 7, 8, 9 one is assigned to the relevant one

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

Intensity of use adjusted suction volume flow specified.

When specifying the suction device and its suction power, or a maximum suction volume flow that can be generated by the suction device concerned, information and simulations on individual suspended particles are used that can be brought into the respective usage area 6, 7, 8, 9 by the people and are located there an increased concentration compared to the non-use area 12 are located within the room 1, or are floating in the air. The suction power of the individual areas of use 6, 7, 8, 9 assigned

Extraction devices are calculated and specified on the basis of this information so that those in the usage area 6, 7, 8, 9 are in the air

Suspended particles with a sufficiently large

Probability can be extracted before these suspended particles can contaminate another person who is either also within the relevant usage area 6, 7, 8, 9 or at another position within the room 1. In the illustrated embodiment, the suction power of the suction devices that the areas of use 8, 9 in the

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 used for the Predefined suction device, which is assigned to the usage area 6 of the counter service area 11.

In FIG. 2, an exemplary sequence of the method for decontaminating a room, for example room 1 in the restaurant, is shown schematically. In 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

Intensity of use of a suction device assigned to this area of use 6, 7, 8, 9 with an assigned suction volume flow.

As soon as the preparation of the decontamination measures has been completed, all necessary construction measures can be carried out in a subsequent preparation step 15 in order to then be able to carry out the prepared decontamination measures in room 1. The associated suction devices and at least one air supply device for filtered and purified fresh air are installed for each usage area 6, 7, 8, 9. Lock systems are installed at all entrances through which people can enter room 1. The monitoring devices required for monitoring the decontamination measures and a disinfection device that may be required for separate disinfection measures will be installed. Additionally A negative pressure can be generated and a negative pressure differential measurement carried out in order to determine whether the room 1 should be additionally sealed at some points in order to prevent the ingress of uncleaned air while decontamination measures are being carried out.

During an implementation step 16, the suction devices are operated at the same time as the room 1 is used by people. At the beginning of implementation step 16, 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 a predetermined property range is detected for the at least one monitored property. Depending on the recorded and monitored properties, the decontamination measures can be adjusted or suitable additional measures can be initiated.

Regardless of this, the operation of individual suction devices can be adapted to actual use of the assigned area of use by people while the decontamination measures are being carried out 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. For this purpose, a usage detection step 18 can be carried out at time intervals or continuously and with a suitable sensor device, a parameter for an actual use of the usage areas 6, 7, 8, 9 in the room 1 can be determined. 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 is adapted to the expected use of the relevant usage area 9, 10 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, by measuring the noise level with the decibel measurement sensor 22, a Adjustment of the suction power of the suction devices 20, 21 can be made.

FIG. 4 shows an example of a workplace 24 in a production company, which has a usage area indicated by a four-dot chain line

25 forms. 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 a control of the suction device 25 that is adapted to the volume in the workplace 24 is not expedient.

By arranging the air supply device 28 below the usage area 25 and the suction device

26 above the area of use 25, targeted air guidance can be supported. 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. In the production company, 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.

Claims

Patent notices

1. A method for preparing decontamination measures within a room (1) located in a building and used by people (19), with several usage areas (6, 7, 8, 9, 25) within the room (6, 7, 8, 9, 25) in a planning recording step based on a predetermined usage concept. 1) and an expected intensity of use can be determined for each usage area (6, 7, 8, 9, 25) on the basis of previously determined parameters, and in a subsequent one

Planning implementation step for each usage area (6, 7, 8, 9, 25) based on the expected usage intensity, a suction device (20, 21, 26) assigned to this usage area (6, 7, 8, 9, 25) with an assigned suction volume flow can be specified.

2. The method according to claim 1, characterized in that in the planning implementation step for each usage area (6,

7, 8, 9, 25), based on the expected intensity of use, an air supply device (28) assigned to this area of use (6, 7, 8, 9, 25) with an assigned supply air volume flow is specified.

3. The method according to claim 1 or claim 2, characterized in that in the planning implementation step, based on the expected intensity of use of all areas of use (6, 7, 8, 9, 25) within the room (1) disinfection measures to be carried out at time intervals are specified, which are carried out with a disinfection device (29) in the room (1).

4. The method by carrying out decontamination measures in a building located in a building and used by people (19) room (1), to which the method described in claims 1 to 3 for the preparation of

Decontamination measures were carried out, with the operation of individual suction devices (20, 21, 26) being adapted to an actual use of the assigned usage area (6, 7, 8, 9, 25) by people (19) during the implementation of the decontamination measures and a consultation with the relevant Suction device (20, 21, 26) sucked suction volume flow between a predetermined minimum value and a maximum value for the suction device (20, 21, 26) in question.

5. The method according to claim 4, characterized in that actual use of a usage area (6, 7, 8, 9, 25) is monitored with a sensor device (22, 23) assigned to this usage area (6, 7, 8, 9, 25) and that, based on the sensor signals of the sensor device, the operation of the associated suction device is adapted.

6. The method according to claim 5, characterized in that the sensor device (22, 23) has a decibel measuring device (22) and / or a motion sensor (23) with which one in the area of use (6, 7, 8, 9, 25) The prevailing volume or movement of people (19) in the usage area (6, 7, 8, 9, 25) is detected.

7. The method according to any one of claims 4 to 6, characterized in that an operation of during the implementation of decontamination measures

Air supply devices (28) are adapted to the operation of the suction devices (26) and a supply air volume flow supplied by an air supply device (28) is adapted to an exhaust air flow extracted by the suction device (26).

8. The method according to any one of claims 4 to 7, characterized in that a disinfection of the room (1) takes place at time intervals with a disinfection device (29).

9. A method for monitoring the decontamination measures carried out with a method according to claims 4 to 8 in a room (1) located in a building and used by people (19), characterized in 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.

10. The method according to claim 9, characterized in that the monitoring device detects a pressure difference between the air volume monitored with the method and an ambient pressure outside the monitored space (1).

11. The method according to claim 9 or claim 10, characterized in that a contamination content of the air volume monitored with the method is recorded.