EP4139652A1 - Kit with separator device and particle sensor, use of the kit, dust-collecting device, and method for controlling the dust-collecting device - Google Patents
Kit with separator device and particle sensor, use of the kit, dust-collecting device, and method for controlling the dust-collecting deviceInfo
- Publication number
- EP4139652A1 EP4139652A1 EP21716791.5A EP21716791A EP4139652A1 EP 4139652 A1 EP4139652 A1 EP 4139652A1 EP 21716791 A EP21716791 A EP 21716791A EP 4139652 A1 EP4139652 A1 EP 4139652A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- kit
- dust
- particle sensor
- particles
- fluid flow
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000002245 particle Substances 0.000 title claims abstract description 251
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 81
- 238000005259 measurement Methods 0.000 claims abstract description 63
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims description 182
- 238000000926 separation method Methods 0.000 claims description 62
- 238000001514 detection method Methods 0.000 claims description 25
- 238000004891 communication Methods 0.000 claims description 19
- 238000011109 contamination Methods 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 10
- 239000000443 aerosol Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 230000036541 health Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 210000000115 thoracic cavity Anatomy 0.000 description 2
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000008241 heterogeneous mixture Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004204 optical analysis method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 238000010407 vacuum cleaning Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/1456—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
- G01N15/1459—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals the analysis being performed on a sample stream
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N2001/222—Other features
- G01N2001/2223—Other features aerosol sampling devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N2001/2285—Details of probe structures
- G01N2001/2288—Filter arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0019—Means for transferring or separating particles prior to analysis, e.g. hoppers or particle conveyors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
Definitions
- the present invention relates to a kit which comprises a separation device and a particle sensor.
- the kit is characterized in that the separation device in the kit is located upstream of the particle sensor and is set up to leave only respirable particles in the fluid flow, so that only those particles reach the particle sensor and are analyzed by it that have a particle diameter in a range from 0 to 10 pm.
- the particle sensor can be effectively protected from undesired contamination and its measuring accuracy can be increased considerably by reducing the number of particles to be analyzed that come into its measuring range.
- the invention relates to the use of the proposed kit in a dust device, for example to control the dust device as a function of the measurement results determined with the proposed kit.
- the invention relates to a dust device that comprises a proposed kit, as well as a method for controlling a dust device as a function of the measurement data determined with the kit.
- the disadvantage of the known measuring devices is that most devices are not designed for the analysis of dust particles in the entire diameter range that occurs.
- Most of the conventional devices have an optimal working range, which can be set, for example, by calibrating the device.
- the problem thus arises that a fluid flow with particles with all particle sizes is guided through the conventional measuring devices, although the measuring device is only designed to analyze a small range of particle diameters.
- the excess particles, which actually do not contribute to the analysis because their diameters are not in the calibration range of the measuring device are not simply passed through the measuring device. Rather, they reduce the measuring accuracy of the measuring device and can lead to undesired contamination and the resulting damage to the dust sensor.
- the object of the present invention is therefore to provide a measuring device with which the investigation of a fluid flow to be analyzed can be improved.
- the measuring accuracy of the measurements that are carried out with the measuring device should be increased and the risk of contamination within the measuring device should be reduced.
- a dust device with an improved possibility of analyzing a fluid flow is to be provided, as well as a control method for this dust device.
- kits that comprises a separation device and a particle sensor, the particle sensor being set up to analyze particles in a fluid flow.
- the kit is characterized in that the separation device in the kit is arranged upstream of the particle sensor and is set up to leave only respirable particles in the fluid flow, so that only the respirable particles reach the particle sensor and are analyzed by it.
- the invention relates to a specific arrangement of a separation device with certain properties in relation to a particle sensor.
- the arrangement is characterized in that the separation device is arranged within the kit at a first position, while the particle sensor is arranged downstream of the separation device at a second position within the kit.
- the separation device is located upstream of the particle sensor in the direction of flow or the fluid flow to be analyzed first passes the separation device and then the particle sensor.
- a measuring path begins behind the separation device and comprises a measuring range of the particle sensor. The examination of the particles in the fluid flow through the kit preferably takes place in the measuring range of the particle sensor.
- the fluid flow to be analyzed is in particular an aerosol flow.
- this preferably means that the fluid or aerosol flow is formed by a heterogeneous mixture which comprises solid suspended particles and a fluid, preferably a gas or a gas mixture.
- the suspended particles can in particular be dust particles of various sizes.
- the fluid is preferably the known oxygen-nitrogen mixture that forms the earth's atmosphere.
- the dust particles have diameters in a range from 1 to more than 100 ⁇ m. Dust particles with a diameter of 0 to 10 ⁇ m are referred to as alveolar particles in the context of the invention.
- the alveoli form the human lungs as alveoli, and gas exchange in the human body takes place in the alveoli.
- the fluid or aerosol stream comprises particles which have larger particle diameters.
- thoracic particles have a diameter of up to 30 ⁇ m
- the so-called “inhalable” particles have a particle diameter of 10 ⁇ m to, for example, 1000 ⁇ m, preferably up to 500 ⁇ m and particularly preferably up to 100 ⁇ m.
- Tests have shown that it is primarily the particles with a particle diameter greater than 10 ⁇ m that are responsible for soiling conventional particle sensors. The contamination can lead to detection difficulties, increased measurement inaccuracies, damage or a possible total failure of the particle sensor.
- particles with a particle diameter of greater than 10 ⁇ m can be filtered out of the measuring fluid flow so that these particles do not even come into contact with the particle sensor.
- particles with a diameter of greater than 10 ⁇ m can be filtered out of the fluid flow by the separation device and removed from the fluid flow, so that these particles are effectively prevented from reaching the particle sensor.
- the invention can ensure that only the health-relevant portion of particles arrives at the particle sensor and can be analyzed.
- the particle sensor is reliably protected from undesired contamination and damage resulting therefrom.
- an improved measurement accuracy of the particle sensor can be achieved and the service life of the sensor can be increased considerably.
- the total number of particles to be analyzed is reduced, as a result of which the measurement accuracy of the particle sensor can be increased.
- the particles to be analyzed are analyzed by the particle sensor, in particular with regard to their size, ie their diameter.
- Another essential advantage achieved with the invention is that the proportion of health-relevant particles is essentially not influenced by filtering out the non-respirable, since these particles just remain in the fluid flow and are analyzed by the particle sensor. In this respect, despite the reduction in the number of particles, which significantly increases the measurement accuracy of the kit, there is no influence or distortion of the measurement results. Tests have shown that surprisingly accurate measurement results can be obtained with the proposed arrangement of separation device and particle sensor with respect to one another.
- the separation device is designed as a centrifugal separator, deflection chamber or as a cyclone.
- centrifugal force is used to filter the solid particles out of the aerosol or fluid flow.
- Separation devices such as centrifugal separators or cyclones, are preferably based on the principle of mass force separation, the different masses of different types of particles being used in particular to sort the particles by weight and, if the density is similar, also by size or diameter.
- a vortex flow can be generated in the separating device, the differently sized particles being exposed to centrifugal forces of different magnitudes due to their differently sized masses.
- centrifugal separators or cyclones which are used as separation devices in the proposed kit, are particularly well suited to filtering out particles with a diameter of greater than 10 ⁇ m from the fluid flow.
- a deflection chamber can preferably be a chamber in which a fluid flow is deflected as strongly as possible over a short distance.
- the interior of the deflection chamber is preferably designed in such a way that a fluid flow can experience a particularly strong deflection.
- the separation device is a selectively operating separation device.
- this preferably means that the separation device is set up to filter out particles from the fluid flow depending on the particle diameter.
- the separation device is set up to filter out particles with a diameter of greater than 10 ⁇ m from the fluid flow, while particles with a smaller particle diameter, ie a particle diameter of less than 10 ⁇ m or in one Range from 0 to 10 pm in which the aerosol flow remains.
- the separation device as Filters function, the separation device being set up in particular to select the particles to be analyzed according to particle diameter and to let them through or to filter them out selectively.
- let through in the context of the invention preferably means that the “let through” particles can remain in the fluid flow so that they can be analyzed by the particle sensor at a position downstream of the separation device within the proposed kit.
- the preferably selectively operating separation device is set up to allow alveolar particles to pass through, while it is also set up to filter out thoracic and inhalable particles from the aerosol flow.
- a selectively operating separation device is particularly advantageous when the particle sensor is a particle sensor which is calibrated in particular to small particle sizes. Since such particle sensors, calibrated to small particle sizes, guarantee an anyway better resolution and measurement accuracy than uncalibrated sensors, the provision of the preferably selectively operating separation device further improves the measurement accuracy of the particle sensor, so that particularly accurate and meaningful measurement results are obtained.
- the particle sensor is an optically operating particle sensor.
- the particle sensor of the proposed kit can be based, for example, on the principle of laser scattering, with the measurement data optically collected in this way being able to be evaluated and analyzed using various evaluation methods and algorithms.
- the invention relates to the use of the proposed kit in a dust device.
- the kit can in particular be used for the detection or analysis of particles in a fluid stream flowing through the dust device.
- the use of the kit is characterized in that the separation device is arranged upstream of the particle sensor within the kit and is set up to leave only respirable particles in the fluid flow, so that only the respirable particles reach the particle sensor and from this can be analyzed.
- the respirable particles preferably have particle diameters in a range from 0 to 10 ⁇ m.
- the separation device is preferably set up to filter out particles with a diameter of greater than 10 ⁇ m from the fluid flow, so that these particles with a diameter of greater than 10 ⁇ m have to leave the fluid flow before they reach the particle sensor or its measuring range.
- the proposed kit can be used to control the dust device.
- the control of the dust device takes place in particular as a function of measurement data that are collected with the kit. It is preferred that the measurement data that are used to control the dust device are collected with the kit, preferably the particle sensor of the kit.
- the separator of the kit is upstream of the particle sensor. In the context of the invention, this preferably means that the separation device is present in a first position within the kit and the particle sensor is present in a second position within the kit.
- particles which are to be examined or analyzed as a function of their diameter first get into the separation device.
- the particles are preferably sorted and filtered in such a way that only respirable particles remain in the fluid flow, while particles with a diameter of greater than 10 ⁇ m are filtered out by the separation device and have to leave the fluid flow.
- only a fraction of the particles previously contained in the fluid flow advantageously remain in the fluid flow, which is then analyzed by the particle sensor. This he increases the measuring accuracy of the sensor and protects the preferably optical detection unit of the particle sensor from contamination and damage resulting therefrom.
- the measurement data that can be collected with the kit and used to control the dust device relate in particular to the particle sizes of the particles in the fluid flow to be analyzed.
- the particle sensor is set up, for example, to detect a number of particles and a volume flow.
- the particle concentration can advantageously be calculated from these measured values.
- the particle concentration can be specified, for example, in the unit milligrams per cubic meter (mg / m 3).
- the determined particle concentration can be assigned to a particle size range according to the PM categorization.
- the particle concentration can be used as a dust concentration value in order to control a dust device.
- the dust device is an air cleaner, a vacuum cleaner or a dust collection device.
- the air cleaner can be, for example, a stand-alone device for cleaning air in a preferably essentially closed space.
- air purifiers who are used, for example, on construction sites to bind dust or to remove dust from the work area of a worker.
- air purifiers can also be used in many other areas, for example in clean room monitoring, in clinics and care facilities or in public buildings for monitoring air quality.
- the machine tools that are used on construction sites are preferably grinding or polishing machines, saws, drilling or chiselling devices, as well as core drilling devices, without being limited to them.
- problems can arise with the removal of dust, as there is no wind in closed rooms, for example.
- Air purifiers are used successfully here to reduce dust pollution for the workers on the construction site and the users of the machine tools. Since not all dust is equally harmful to human health, there is an interest in finding out how the dust is actually composed and to what extent it is a health burden for those working on the construction site.
- the invention makes a contribution to the fact that dust can be analyzed with an increased measurement accuracy. Furthermore, with the invention, in particular that portion of the dust that is particularly relevant to health can be examined.
- the use of the invention in a construction site context has proven to be particularly advantageous due to the fundamentally particularly high dust exposure of the workers. Due to the particularly dense dust-laden air, the invention can make a significant contribution to the fact that, despite the high dust load in the air, particularly accurate and reliable measurement results can be obtained from the particle sensor, in particular by the larger ones that are actually less relevant for the measurement Particles do not even get into the measuring range of the sensor.
- a fluid flow to be analyzed with particles to be analyzed first reaches the separation device of the kit. There the particles are filtered or selected according to their size or diameter. It is also provided that the separation device only allows particles to pass which have a diameter in a range from 0 to 10 ⁇ m. Larger particles are filtered out by the separation device and removed from the fluid stream. In particular, the particles remaining in the fluid flow with a diameter in a range from 0 to 10 ⁇ m are passed on to the particle sensor.
- an analysis of the particles can take place, with the measurement data collected with the particle sensor, which for example relate to the composition of the particles in the fluid stream or their size distribution, can advantageously be used to detect a dust interacting with the kit -To control device, ie to switch on or off, for example.
- the kit -To control device ie to switch on or off, for example.
- the measured values obtained with the particle sensor can be used to control a dust device.
- the dust device e.g. the air cleaner or a vacuum cleaner, can be switched on or off as a function of the measured values that are determined with the particle sensor.
- the dust device can be switched on.
- the dust device can advantageously be switched off again.
- the proposed kit in particular the particle sensor, can be connected to the dust device in terms of information technology via a communication link.
- the dust device comprises a control unit to which the kit or the particle sensor is connected via the communication link.
- the communication link can be based on WLAN or Bluetooth, for example.
- Control commands based on the measurement results determined with the kit can preferably be transmitted from the kit, in particular the particle sensor, to the dust device, the control commands in the dust device leading to a change in status, a change in the operating status or a change in operating parameters can.
- the measurement data determined by the particle sensor can be used not only to switch the dust device on or off, but also to set or regulate operating parameters of the dust device, preferably also continuously.
- the control commands are preferably implemented in the control unit of the dust device, the control unit preferably being set up to work with components of the To cooperate dust device and to control and / or operate.
- the components of the dust device can be, for example, motors, turbines, pumps or the like that perform essential functions of the respective dust device.
- the measured values of the particle sensor are only evaluated in the control unit of the dust device.
- the preferably raw measurement results are transmitted from the kit to the dust device using the communication link.
- the dust device can also be a vacuum cleaner, such as a vacuum cleaner or a construction site vacuum cleaner.
- the vacuum cleaning device can, for example, comprise a proposed kit or be controlled by the kit. This control as a function of measured values that are collected with the kit, preferably the particle sensor of the kit, takes place analogously to the control as it was previously described with regard to the air cleaner.
- the proposed kit can also be used in connection with a dust detection device.
- a dust detection device For example, it is conceivable to equip the workers on a construction site with a personal dust collection device in the sense of an individual "dust dosimeter", which is able to determine or display or evaluate the individual dust exposure of a worker, for example per unit of time.
- the personal dust collection device can have suitable means of communication in order to forward the determined traffic jam exposure data or the fine dust quantities to a central processing or storage device so that, for example, an employer or construction site operator can take suitable countermeasures to reduce the workers' exposure to dust if necessary.
- a fluid flow to be analyzed is passed through a measurement path, the measurement path preferably beginning in the flow direction of the fluid flow behind the separation device and leading through the particle sensor of the kit.
- the fluid flow includes particles whose properties are to be examined with the particle sensor.
- the proposed kit is built up in such a way that the fluid stream first flows into the separation device, with the separation device filtering out those particles from the fluid flow which have a diameter of greater than 10 ⁇ m, ie are not alveolar. Only the alveolar Gen particles with a diameter of less than 10 ⁇ m are allowed to pass through the separating device and can remain in the fluid flow.
- the fluid flow then reaches a measurement area of the preferably optically operating particle sensor. The particles remaining in the fluid flow are examined there.
- the fluid flow then leaves the proposed kit and continues its way through the dust device.
- a personal dust collection device interacts with an air cleaner and / or a vacuum cleaner.
- the data collection or the fine dust quantity or exposure can take place, for example, in the personal dust detection device, while the determined data is used to control the operation of the air cleaner or the vacuum cleaner.
- the personal dust detection device represents an external dust detection module, the measurement results of which are used to control dust devices, such as air cleaners and / or vacuum cleaners.
- the proposed kit can be part of the personal dust detection device and / or the further dust device, such as an air cleaner or vacuum cleaner.
- there is a communication connection between the personal dust collection device and the air cleaner or the vacuum cleaner device This can be based on WLAN or Bluetooth, for example. It can also be preferred within the meaning of the invention that the proposed kit, for example as an internal dust collection module, is integrated in the air cleaner or the vacuum cleaner.
- the fluid flow to be examined can then, for example, be branched off from a larger fluid flow flowing through the dust device in the sense of a bypass.
- the invention relates to a dust device which comprises a proposed kit.
- the dust device is in particular an air cleaner, a vacuum cleaner or a (personal) dust collection device.
- the proposed dust device comprises in particular a particle sensor and a separation device, the particle sensor being set up to analyze particles in a fluid flow.
- the separation device is located upstream of the particle sensor within the kit and is also designed to leave only respirable particles in the fluid flow. This means that the separation device allows in particular those particles which have a particle diameter of 0 to 10 ⁇ m. Such particles with a particle diameter of 0 to 10 ⁇ m are referred to in particular as “fine dust”.
- fine dust particles advantageously reach the particle sensor. This means that only the respirable particles are analyzed by the particle sensor. and only those measurement data are used, for example to control the dust device, which are based on such fine dust measurements.
- the invention in yet another aspect, relates to a method for controlling a proposed dust device, the dust device having a proposed kit with a separation device and a particle sensor.
- the method is characterized by the following steps: a) providing a proposed dust device, the dust device comprising a proposed kit, b) determining measurement data relating to the particles in the fluid flow, the measurement data being determined using the particle sensor of the proposed kit takes place, c) control of the dust device as a function of the measurement data determined in step b).
- the dust device has a proposed kit with a separation device upstream of a particle sensor.
- the proposed control method is also based on the particularly clever arrangement of the separation device and particle sensor within the proposed kit. Due to this advantageous arrangement, only the particles that are really health-relevant due to their size are examined by the particle sensor, while the remaining particles, which would reduce the accuracy of the measurement, are previously removed from the fluid flow by the separation device. As a result, particularly precise measurement data can be provided for the control of the dust device and the dust device, for example, can be operated in a particularly energy-saving, quiet or filter-friendly manner.
- the kit is present as an external or internal dust capture module.
- the kit can represent an external dust detection module that is in information-technological connection with a dust device via a communication link, so that, for example, measurement data or control commands can be exchanged.
- the kit, an external traffic jam acquisition module can be set up, for example, in a room whose air quality is to be monitored. This can be, for example, a room in a building to be renovated, in which work is carried out with a handheld power tool, with dust being produced during the work.
- the external dust detection module which in particular has a particle sensor and a separation device upstream of the particle sensor, can then examine the particles in a fluid flow and transfer the measured data to a dust collector. Send device. There, the measurement data can be used to make settings on the dust device, and consequently to control the dust device.
- the dust device can comprise a control unit.
- the kit can represent an integrated dust detection module within the dust device.
- a small fluid flow can be branched off from a larger fluid flow flowing through the device and analyzed.
- kit preferably apply analogously to its use, the dust device and the proposed control method.
- Fig. 2 is a schematic representation of a preferred embodiment of the dust device, which interacts with a preferred embodiment of the kit as an external dust capture module
- Fig. 3 shows a schematic representation of a preferred embodiment of the dust device, which interacts with a preferred embodiment of the kit as an integrated dust detection module
- Figure 1 shows a preferred embodiment of the proposed kit (1).
- Fig. 1 shows the components of the kit (1), i.e. the separation device (2) and the particle sensor (3).
- the particle sensor (3) is designed to analyze particles in a fluid flow (4).
- the fluid flow (4) is passed through the separation device (2) and the particle sensor (3).
- the separation device (2) is set up to filter out those particles which have a diameter of greater than 10 ⁇ m from the fluid flow (4). This filtering or size selection can take place, for example, by a cyclone, a centrifugal separator or a deflection chamber.
- the particles with a diameter of greater than 10 ⁇ m are removed from the fluid flow (4) by the separation device (2).
- the fluid flow (4) and the particles remaining in the flow direction behind the separating device (2) in the fluid flow (4) are passed on in the direction of the particle sensor (3).
- the measuring path (5) which preferably includes a measuring range of the particle sensor (3).
- These particles are particularly health-relevant particles, as they pass the walls of the alveoli and can thus get into the interior of the human organism.
- they are preferably referred to as "respirable” or as "fine dust”.
- it is preferred that the particles in the fluid stream (4) or in the measuring path (5) are examined by the particle sensor (3) using optical analysis methods. This can be, for example, a method based on the scattering of laser light.
- the dust device (6) can be an air cleaner, a vacuum cleaner or a (personal) dust detection device, without being limited thereto. It is preferred in the context of the invention that the kit (1) with its components, the separation device (2) and the particle sensor (3), is present as a self-contained unit outside the dust device (6).
- a communication link (9) can preferably be present between the dust device (6) and the kit (1). In other words, the kit (1) and the dust device (6) can communicate with each other using a communication link (9). This communication can consist, for example, in the exchange of data, measurement results and / or control commands, without being restricted thereto.
- the communication connection (9) preferably exists in particular between the parties kelsensor (3) of the kit (1) and the dust device (6).
- the kit (1) can comprise a communication device, such as a transmitter (not shown).
- the dust device (6) can comprise a communication device (not shown) configured as a receiver to receive the data from the kit (1).
- the communication connection (9) between the kit (1) and the dust device (6) is preferably bidirectional, so that, for example, the kit (1) or its particle sensor (3) is also set up to receive data and the dust device ( 6) can be set up to send data.
- the dust device (6) can also include a control unit (not shown) in which, for example, the data obtained from the particle sensor (3) of the kit (1) can be evaluated and converted into control commands for the dust device (6) .
- the dust device (6) can be controlled as a function of the measurement results that are determined with the kit (1) or its particle sensor (3).
- the kit (1) can preferably be used to examine the air or its load with particles of different sizes in the vicinity of the dust device (6).
- the dust device (6) is preferably a device through which a fluid stream (4) flows.
- This fluid stream (4) contains particles whose properties are to be examined with the kit (1) or the particle sensor (3) of the kit (1).
- a bypass fluid flow (4) can be formed which is passed through the kit (1) instead of through the dust device (6).
- the bypass fluid flow (4) or the particles contained therein preferably have essentially the same properties as the fluid flow (4) which flows through the dust device (6). This ensures that the measurement results that are determined with the kit (1) also apply to the dust device (6) and can be used to control it.
- the separation device (2) is located upstream of the particle sensor (3) within the kit (1).
- the non-respirable particles can be filtered out of the fluid flow (4) with the separator device (2) before they reach the measuring path (5) or the particle sensor (3).
- Fig. 3 shows a schematic representation of a preferred embodiment of the dust device (6), the dust device (6) interacting with a preferred embodiment of the kit (1) as an integrated dust detection module (8).
- the proposed kit (1) is available as an internal dust detection module (8) and can be integrated, for example, in the dust device (6).
- the proposed kit (1) can be designed as an internal dust collection module (8). be det.
- it can represent a self-contained unit that is present, for example, in the interior of the dust device (6).
- the internal dust collection module (8) is arranged on an outside or outside wall of the dust device (6).
- the kit (1) designed as an internal dust collection module (8) can preferably be easily removed from the dust device (6) and replaced.
- the internal dust detection module (8) can be connected to the dust device (6) by means of data or power supply lines (not shown), for example.
- the internal dust detection module (8) can preferably be supplied with energy via the energy supply lines, while communication in the sense of an exchange of data, measurement results and / or control commands can take place via the data lines.
- the dust device (6) can be controlled with measurement results that are determined by the kit (1) or the particle sensor (3) of the kit (1).
- the measurement results of the internal dust detection module (8) can be transmitted to the dust device (6) or a control unit (not shown) of the dust device (6).
- the measurement results in the kit (1) are evaluated itself and control commands for the dust device (6) are derived from the measurement results, in this embodiment of the invention in particular the control commands to the Dust device (6) are transmitted.
- the evaluation of the measurement results can take place in the dust device (6) or in the control unit of the dust device (6).
- the raw or essentially raw measurement data or measurement results are transmitted from the internal dust detection module (8) to the dust device (6).
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- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20170760.1A EP3901611A1 (en) | 2020-04-22 | 2020-04-22 | Kit with separating device and particle sensor, use of the kit, dust device and method for controlling the dust device |
PCT/EP2021/059523 WO2021213842A1 (en) | 2020-04-22 | 2021-04-13 | Kit with separator device and particle sensor, use of the kit, dust-collecting device, and method for controlling the dust-collecting device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4139652A1 true EP4139652A1 (en) | 2023-03-01 |
Family
ID=70390953
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20170760.1A Withdrawn EP3901611A1 (en) | 2020-04-22 | 2020-04-22 | Kit with separating device and particle sensor, use of the kit, dust device and method for controlling the dust device |
EP21716791.5A Pending EP4139652A1 (en) | 2020-04-22 | 2021-04-13 | Kit with separator device and particle sensor, use of the kit, dust-collecting device, and method for controlling the dust-collecting device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20170760.1A Withdrawn EP3901611A1 (en) | 2020-04-22 | 2020-04-22 | Kit with separating device and particle sensor, use of the kit, dust device and method for controlling the dust device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20230152190A1 (en) |
EP (2) | EP3901611A1 (en) |
WO (1) | WO2021213842A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005002710A1 (en) * | 2003-04-04 | 2005-01-13 | Donaldson Company, Inc. | Acoustical cavity for removal of contaminants from fluid |
US6971525B2 (en) * | 2003-06-25 | 2005-12-06 | Phase Inc. | Centrifuge with combinations of multiple features |
US9541475B2 (en) * | 2010-10-29 | 2017-01-10 | The University Of British Columbia | Methods and apparatus for detecting particles entrained in fluids |
US9395343B2 (en) * | 2011-11-04 | 2016-07-19 | Danmarks Tekniske Universitet | Resonant fiber based aerosol particle sensor and method |
KR102564702B1 (en) * | 2017-04-17 | 2023-08-08 | 티에스아이 인코포레이티드 | Fine dust sensor and its method |
FR3066600A1 (en) * | 2017-05-17 | 2018-11-23 | Eco Logic Sense Sas | SENSOR FOR MEASURING CONCENTRATION OF PARTICLES IN THE AIR |
-
2020
- 2020-04-22 EP EP20170760.1A patent/EP3901611A1/en not_active Withdrawn
-
2021
- 2021-04-13 US US17/917,314 patent/US20230152190A1/en active Pending
- 2021-04-13 WO PCT/EP2021/059523 patent/WO2021213842A1/en unknown
- 2021-04-13 EP EP21716791.5A patent/EP4139652A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US20230152190A1 (en) | 2023-05-18 |
WO2021213842A1 (en) | 2021-10-28 |
EP3901611A1 (en) | 2021-10-27 |
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