WO2013143789A1 - Verfahren zum optimieren einer vorrichtung zum staubsaugen mit boden- oder upright-staubsaugergerät und filterbeutel - Google Patents
Verfahren zum optimieren einer vorrichtung zum staubsaugen mit boden- oder upright-staubsaugergerät und filterbeutel Download PDFInfo
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- WO2013143789A1 WO2013143789A1 PCT/EP2013/053461 EP2013053461W WO2013143789A1 WO 2013143789 A1 WO2013143789 A1 WO 2013143789A1 EP 2013053461 W EP2013053461 W EP 2013053461W WO 2013143789 A1 WO2013143789 A1 WO 2013143789A1
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- filter bag
- standard
- vacuum cleaner
- kpa
- motor
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
- A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
Definitions
- the invention relates to a method for optimizing a vacuum cleaning system comprising a floor-vacuum cleaner and a filter bag, wherein the vacuum cleaner a motor-blower unit with a motor-blower characteristic, a filter bag receiving space, a connection piece for the filter bag, a hose, a pipe and a bottom nozzle, and wherein the filter bag comprises a filter material made of nonwoven fabric. Furthermore, the invention relates to a vacuum cleaning system in which the same was used for the development and / or production of such a method for optimization.
- Floor vacuum cleaner also called floor vacuum cleaner
- a floor vacuum cleaner has a housing which is movable on rollers and / or skids on the ground. In this housing are a motor-blower unit and the filter bag storage room with the filter bag. Characteristic of a floor vacuum cleaner is that the housing is connected via a hose and a pipe with the floor nozzle. The floor nozzle is changeable. The lengths of tubing and tubing in such bottom vacuum cleaners are typically in the range of 1.4m to 1.9m for the tubing and 0.6m to 1.0m for the tubing. Between pipe and hose is a typically bent intermediate piece in the form of a handle. This intermediate piece has a typical length of 0.3 m to 0.4 m. The inner diameter of this intermediate piece corresponds to the inner diameters of tube and hose. In the floor vacuum cleaner device, the tube is also referred to as a suction tube and the hose as a suction hose.
- the vacuum cleaner devices in the sense of the present invention also include the vacuum cleaner devices of a group of upright vacuum cleaner devices.
- the upright vacuum cleaner is a combination of a bottom part with floor nozzle, which often has a motor-driven brush roller, and a top part, in which the dust collection container is provided.
- the floor nozzle is not interchangeable and connected via a hose and / or a pipe to the dust collector.
- This tube and hose are also called Upright vacuum cleaners as a connecting pipe and connecting hose.
- the motor-blower unit may be disposed in the bottom part or in the top part.
- the vacuum cleaners of the Upright vacuum cleaner group which is encompassed by the present invention, have a total length of hose and / or pipe of at least 0.5 m.
- vacuum cleaners of the group of upright vacuum cleaners in which the total length of hose and / or pipe is smaller than 0.5 m are not included in the invention.
- the filter bag is provided on the head (ie with an opening facing downwards), then the connection of hose and / or pipe between floor nozzle and filter bag can be made very short ( ⁇ 0.3 m).
- the hand vacuum cleaner (or hand vacuum cleaner) - it consists of a housing with motor-blower unit and dust collecting space, at one end of the housing is a handle, at the other end a floor nozzle is changeable via a very short pipe; when the floor is vacuumed, the housing and the floor nozzle are moved back and forth, only the base plate and the rollers of the floor nozzle touch the floor, such arrangement without a hose and long pipe), and the compact vacuum cleaner (or compact vacuum cleaner) consists of a housing with motor-blower unit and dust collecting chamber, which are mounted directly on the floor nozzle, or in which a floor nozzle is integrated, this housing is connected to a handle with a handle, such an arrangement comes almost completely without tube and almost without tube).
- Motor-fan unit motor-blower unit and dust collecting space
- Motor-blower unit is the combination of an electric motor with a single or multi-stage blower. Usually, the two components are mounted on a common axis and matched in terms of performance optimally matched.
- Air flow, negative pressure, suction power, air flow curve (air data) for the floor vacuum cleaner Air flow, negative pressure, suction power, air flow curve (air data) for the floor vacuum cleaner:
- the floor-vacuum cleaner with filter bag, hose and pipe according to EN 6031 2 (see in particular EN 60312, Chapter 5.8 air data), but without floor nozzle, measured.
- a so-called measuring box, as described in EN 6031 2, chapter 7.2.7. is described.
- only the measuring box version B (see Chapter 7.2.7.2, Figure 20c) was used.
- the air data are determined for different orifices (0 to 9), which differ in the internal diameter of their opening size (0 mm to 50 mm) (see the table in chapter 7.2.7.2).
- the different diaphragms simulate a different load, which is caused by the floor nozzle and the substrate to be sucked in daily use.
- the entire upright vacuum cleaner with filter bag is measured to determine this so-called air data .
- the measuring box according to version B is also used for this purpose.
- the Upright vacuum cleaner is connected to the measuring box like a brush vacuum cleaner (see chapter 5.8.1.).
- the air data are determined for different orifices (0 to 9), which differ in the internal diameter of their opening size (0 mm to 50 mm) (see the table in chapter 7.2.7.2).
- the different diaphragms simulate a different load, which is caused by the floor nozzle and the substrate to be sucked in daily use.
- the mean recording power P m [W] is defined as the mean value of the recording power at aperture 0 (0 mm) and aperture 9 (50 mm).
- the air flow q (also referred to in the prior art as suction air flow or volume flow) is determined for each diaphragm from the measurement for the negative pressure (see EN 60312, Chapter 7.2.7.). If necessary, the measured values must be corrected in accordance with EN 60312, in particular with regard to standard air density (see EN 60312, Chapter 7.2.7.4).
- the airflow curve h (q) describes the relationship between the negative pressure and the airflow of a vacuum cleaner. It is obtained by interpolation, as described in EN 60312 (see EN 60312, Chapter 7.2.7.5), between the pairs of values obtained for the different orifices from the measured negative pressure and the determined airflow. The intersection with the x-axis gives the maximum achievable with the device air flow q max .
- the negative pressure here is 0, so the device runs unthrottled.
- intersection with the y-axis indicates the maximum achievable with the device vacuum h max .
- the air flow is equal to 0, the device is throttled maximum. This value results at aperture 0.
- the curve shape of the airflow curve is characteristic of the type of blower used.
- motor-blower units In the field of vacuum cleaners mostly radial-type motor-blower units are used. The air is sucked parallel to the drive axle in this type and deflected by the rotation of the radial fan by 90 ° and blown radially to the drive axle.
- motor-blower units of the axial type in which the intake and outflow take place parallel to the drive axle.
- diagonal motor-driven fan units are also drawn parallel to the drive axle, but the outflow is diagonal to the drive axle.
- the linear interpolation between the measuring points for determining the airflow curve prescribed in standard EN 60312 is a very good approximation in the case of radial blowers and is therefore always used in the present case when the motor-blower unit is of the radial type.
- a quadratic interpolation is used analogously to the standard EN 60312.
- the intersections of the airflow curve with the coordinate axes are (regardless of the type of interpolation selected) characteristic of the blower geometry, the power consumption and the flow resistance in the vacuum cleaner.
- the suction power characteristic P 2 can be derived from the air flow curve (see EN 60312, chapter 5.8.3, in the prior art this suction power is also referred to as air flow).
- the maximum of this curve is referred to as the maximum suction power P 2m ax of the vacuum cleaner.
- the efficiency ⁇ is calculated as the ratio of the related values (ie values of equal air flow) for the suction power P 2 and the power consumption Pi. The maximum of this curve corresponds to the maximum efficiency r) max of the vacuum cleaner.
- Efficiency ⁇ is given in [%] according to EN 60312.
- the motor-fan characteristic describes the relationship between air flow and negative pressure of not built into a vacuum cleaner unit motor-fan unit at different throttle states, which in turn are simulated by the different apertures.
- the determination of the motor-fan characteristic curve is analogous to the determination of the airflow curve according to EN 60312.
- Fig. 1 a to Fig. 1 d are technical drawings of a specific embodiment of the connection of the motor-blower unit, which is used in the present invention, to the measuring box.
- the wall of the measuring box in Fig. 1a is marked with I.
- any other configurations are possible, as long as the inner dimensions of the air ducts are not changed (the radius of 20 mm of the funnel of the air duct in Fig. 1 b "detail 02" and the conical extension of the air duct from 35 mm to 40 mm in Fig.
- the motor-blower units used according to the prior art are connected with corresponding connections to the measuring box. In turn, negative pressure and power consumption are measured at the different apertures 0 to 9. These measured values are corrected if necessary (see above).
- the air flow is determined for the corresponding orifices from the measured vacuum values.
- the motor-fan characteristic h (q) describes the relationship between the negative pressure and the air flow of the measured engine-fan unit. It results in turn from a linear or quadratic interpolation (depending on the motor-blower unit used, see above) between the pairs of values obtained for the different diaphragms from each measured negative pressure and determined air flow.
- the suction power characteristic P 2 can be derived from the motor-fan characteristic curve.
- the maximum of this curve is referred to as the maximum suction power of the motor-blower unit P 2m ax.
- the efficiency ⁇ is calculated as the ratio of the related values (ie values of equal air flow) for the suction power P 2 and the power consumption Pi. The maximum of this curve corresponds to the maximum efficiency n max of the motor-blower unit. Efficiency ⁇ is given in [%] according to EN 60312.
- the efficiency reduction is defined in the case of the vacuum cleaner in the present case as the difference between the maximum efficiency of the motor-blower unit and the maximum efficiency of the vacuum cleaner with empty filter bag and hose and tube but without floor nozzle. It is a measure of the losses of the vacuum cleaner system. The efficiency reduction is given in [%]. If the floor vacuum cleaner is an upright vacuum cleaner, it is measured in accordance with EN 60312 with floor nozzle. Standard suction:
- the flow velocity in the exhaust air of the Kanomax Model 6813 vane anemometer with APT275 impeller probe of 70 mm diameter is measured (Manufacturer of this anemometer is Kanomax, 219 US Highway 206, PO Box 372 Andover, NJ 07821, www.kanomax-usa.com).
- the vane probe was fastened above the blow-out opening of the vacuum cleaner device at a position at which the above-mentioned anemometer indicates a flow velocity value which is approximately in the middle of the measuring range of the anemometer, ie approximately 20 m / s. This serves to ensure that the flow velocity of the exhaust air is within the measuring range of the anemometer.
- the value of the flow velocity is measured accurately. Then the floor vacuum cleaner without floor nozzle with standard pipe, handle and hose to the measuring box, version B, for measuring the air data according to EN 60312, chapter 5.8, connected with panel 8. If the floor vacuum cleaner is an upright vacuum cleaner, the measurement is also carried out in accordance with Chapter 5.8 of EN 60312, but with a floor nozzle. The same value of the flow rate in the exhaust air of the vacuum cleaner as measured during the dust collection measurement on the Wilton standard carpet is then set. This adjustment of the flow rate is carried out by appropriate adjustment of the operating voltage of the motor-blower unit. It is important that the position of the anemometer with respect to the blow-off Opening is not changed. The actual position of the anemometer is not critical here.
- This value obtained for the air flow is transferred to the determined air flow curve to read the corresponding negative pressure, to determine the suction power P 2 from both values, and together with the power consumption Pi corresponding to the air flow efficiency at standard suction on the standard carpet of Type Wilton to determine.
- the negative pressure value can also be calculated, namely by calculating a regression line for the airflow curve and the airflow value directly into this regression equation (this regression equation is linear or quadratic, depending on the type of motor-blower unit, see above) to calculate the negative pressure (see also EN 60312, chapter 7.2.7.5).
- the standard filling of the dust extraction system with 400 g DMT8 standard dust is carried out according to Chapter 5.9 of EN 6031 2. Likewise the DMT8 standard dust according to EN 6031 2 must be provided.
- the area of the rectangle corresponding to the opening area is determined in the context of the present invention with the aid of the so-called minimally circumscribing rectangle, which is well known from image processing (see, for example, Tamara Ostwald, "Object Identification Using Regions Describing Characteristics in Hierarchically Partitioned Images”). , Aachener Kunststoffen Kunststoffen Kunststoffbericht Kunststoffus Kunststoffen Kunststoffusbericht, Volume 04, 2005.)
- the opening area is in one plane (two-dimensional opening area with two-dimensional edge) or the opening area is extending beyond one plane (three-dimensional opening area with three-dimensional edge).
- the area of the rectangle corresponding to the opening area is determined directly by the area of the minimally circumscribing rectangle of the two-dimensional edge of the opening area.
- N 360 is set.
- the area of the rectangle corresponding to the opening area represents a good and unambiguous approximation of the opening area of the vacuum cleaner device, which can be easily determined even with complex opening areas and opening edges.
- the surface of a filter bag in the sense of the present invention is determined on the filter bag when it lies flat in a completely unfolded form, ie in a 2-dimensional form.
- the gussets are fully unfolded to determine the area.
- the filter bag has welded gussets, these are not taken into account when determining the area.
- the area of a filter bag having a rectangular shape results from taking the filter bag out of its packaging, fully unfolding it, measuring its length and width, and multiplying them by one another.
- Flat bags in the sense of the present invention may also have so-called gussets. These side folds can be completely unfoldable.
- a flat bag with such gussets is shown, for example, in DE 20 2005 000 917 U1 (see FIG. 1 there with folded side folds and FIG. 3 with folded side folds).
- the gussets may be welded to portions of the peripheral edge.
- Such a flat bag is shown in DE 10 2008 006 769 A1 (see there in particular Fig. 1).
- the receiving volume of the filter bag in the filter bag receiving space is determined according to the present invention according to EN 60312, Chapter 5.7.
- the maximum receiving volume of the filter bag is determined according to the present invention in analogy to EN 60312, Chapter 5.7.
- EN 60312, Chapter 5.7 The only difference to EN 60312, Chapter 5.7, is that the filter bag is designed to be suspended in a chamber the volume of which is at least sufficient to prevent the filter bag from fully expanding to its maximum possible size when fully filled.
- a cube-shaped chamber with an edge length equal to the root of the sum is sufficient the squares of maximum length and maximum width of the filter bag is this requirement.
- the surface of the filter bag in the sense of the present invention is defined here as twice the area occupied by the filter bag when it lies flat in a completely unfolded form, ie in a 2-dimensional form.
- the area of the entrance opening and the area of the welds are not taken into account as they are comparatively small in relation to the actual filter area.
- any foldings provided in the filter material itself are disregarded.
- the surface of a rectangular filter bag thus results simply from being taken out of its package, fully unfolded, measured its length and width, multiplied together and the result taken two times.
- the surface of the filter bag accommodation space in the sense of the present invention is defined as the surface that the filter bag accommodation space would have (if any) all the facilities (ribs, rib sections, stirrups, etc.) provided in the filter bag accommodation space for the filter material of the filter bag Filter bag from the wall of the filter bag receiving space remains isolated (which is required for a smooth filter material to ensure that even air can flow through the filter bag) remain disregarded.
- the surface of a cuboid filter bag receiving space with ribs thus results as maximum length times maximum width times maximum height of the filter bag receiving space without taking into account the dimensions of the ribs.
- the surface of the filter bag accommodating space enters the above relation only as a lower limit, in order to determine whether a particular vacuum cleaner in combination with the filter bag makes use of the previously discussed embodiment, especially if the filter bag containing space is of complicated geometrical shape, alternatively the surface of a parallelepiped Body can be determined, which completely encloses the filter bag receiving space;
- the surface of such a body is obtained, for example, when the surface of a cuboid with the edge lengths corresponding to the maximum extent of the actual filter bag receiving space in longitudinal, latitudinal and vertical directions. correspond (determined length, width and height direction are of course orthogonal to each other here).
- vacuum cleaning systems Due to the scarcity of resources, it is becoming increasingly important to save energy in the areas of daily life, for example in the field of household appliances, such as vacuum systems. It is desirable here that the function of such vacuum cleaning systems is not limited compared to the previously known.
- Such energy saving presupposes that the vacuum cleaning systems are optimized with regard to their energy consumption, whereby the function of such optimized vacuum cleaning systems, ie in particular the dust absorption, should not be impaired.
- the components of a vacuum cleaner with a floor vacuum cleaner and a filter bag having a motor-blower unit with a motor-fan characteristic curve, a filter bag receiving space, a hose, a pipe and a floor nozzle, and wherein the filter bag comprises a filter material made of nonwoven fabric, optimized so that at a given electrical power consumption, also referred to as power consumption, a maximum suction power according to EN 60312 is achieved.
- the power consumption is in the range of about 800 W to about 1, 300 W.
- Such optimized vacuum cleaning systems for example, the vacuum cleaner Miele S5 Ecoline. It can be achieved with an empty vacuum cleaner filter bag dust absorption according to EN 60312 in the standard carpet of the Wilton type with a pushing force of 44 N of about 82%. With a pushing force of 30 N, about 78% of dust is reached.
- a pushing force of 30 N is considered by the Stainless Steeltest (Stainless Steeltest, Lützowplatz 1 1 -13, 10785 Berlin, Germany, PO Box 30 41 41, 10724 Berlin) as the maximum consumer reasonable push force.
- the Stainless Rushtest assumes that the consumption in case of even higher pushing forces reduces the suction power of a vacuum cleaner and therefore the dust absorption values at higher pushing forces are not relevant.
- Another vacuum cleaning system is the vacuum cleaning system Siemens Z5.0 VSZ5GPX2. It can be achieved with an empty vacuum cleaner filter bag dust collection according to EN 60312 in the standard carpet of the Wilton type with a pushing force of 32 N of about 78%.
- Figures 2a and 2d show the air data of the motor-blower units used in the vacuum cleaning system Siemens Z5.0 VSZ5GPX2 and in the vacuum cleaning system Miele S5 Ecoline.
- Figures 2b and 2e show the air data for the vacuum cleaning system Siemens Z5.0 VSZ5GPX2 and The vacuum cleaning system Miele S5 Ecoline with empty filter bag inserted and
- Fig. 2c and Fig. 2f show the air data for the vacuum cleaning system Siemens Z5.0 VSZ5GPX2 and the vacuum cleaning system Miele S5 Ecoline with 400 g DMT8 dust filled filter bag.
- the object of the invention is to optimize vacuum systems consisting of floor vacuum cleaners and filter bags in such a way that the electrical power consumption of the vacuum cleaner of the system can be considerably reduced without adversely affecting the dust absorption according to EN 60312 ,
- a method for optimizing a vacuum cleaner system with a floor vacuum cleaner and a filter bag comprising the following step:
- a dust absorption according to EN 60312 in the case of the Wilton standard carpet of 79% with a pushing force of 30 N can be realized.
- a Miele S5 Ecoline has an electrical power of 1346 W.
- the electrical power of the optimized with the inventive vacuum cleaning system over the vacuum cleaner Miele S5 Ecoline can be reduced by 63%.
- the 789 W electrical power consumption can be reduced by 37% with almost the same dust absorption of 78% and almost the same pushing force of 32 N.
- the inventive method can be developed such that from motor-fan characteristic curve and size, shape and material of the filter bag and size and shape of the filter bag receiving space and length and inner diameter of the tube and length and inner diameter of the tube initially an air flow curve is determined with The floor nozzle is matched to each other, so that when sucking on the standard carpet Wilton the highest possible efficiency is achieved.
- the other components of the vacuum system are adapted particularly efficient to the motor-blower unit
- co-tuning may also result in the efficiency reduction between the maximum efficiency of the motor-blower unit and the maximum efficiency of the vacuum system being less than 40%, preferably 400 pouches of DMT8 standard dust filled filter bag less than 30%, most preferably less than 25%. As a rule, it is measured without a floor nozzle; if the vacuum cleaner is an upright vacuum cleaner with a floor nozzle.
- This development is characterized by a particularly efficient adaptation of the other components of the vacuum system to the motor-blower unit with a long service life.
- the co-tuning can be developed so that the suction power of the vacuum system in normal sucking on the standard carpet Wilton with empty filter bag at least 100 W, preferably at least 150 W, most preferably at least 200 W is and / or that the suction power of the vacuum system in accordance with standard suction on the standard carpet of the Wilton type with filled with 400 g of DMT8 standard dust filter bag at least 100 W, preferably at least 150 W, most preferably at least 200 W.
- the system can be tuned such that the air flow at normal sucking on the standard carpet Wilton with empty filter bag at least 25 l / s, preferably at least 30 l / s, particularly preferred is at least 35 l / s and / or that the air flow at standard sucking on the Wilton standard carpet at 400 g DMT8 standard dust filled filter bag at least 25 l / s, preferably at least 30 l / s, more preferably at least 35 l / s is.
- each fold before the first use of the filter bag in a floor vacuum cleaner have a length which corresponds to at least half of the total expansion of the filter bag in the direction of the fold, preferably substantially the total extension of the filter bag in the direction of the fold.
- each fold of the flat bag used before the first use of the filter bag in a floor vacuum cleaner a fold height between 3 mm and 50 mm, preferably between 5 mm and 15 mm, and / or a fold width between 3 mm and 50 mm, preferably between 5 mm and 15 mm.
- Such flat bags are known from EP 2 366 321 A1 and represent embodiments of flat bags, which are particularly suitable for all previously described inventive method for optimizing the question Staubsaugsystems.
- each surface fold of the filter bag used may have areas that lie in the surface of the filter bag wall and have areas that protrude beyond the surface of the filter bag wall and are deployable in the suction mode
- the bottom vacuum cleaner having a filter bag containing space with rigid walls, wherein the At least one first spacer means is provided on walls of the filter bag containment space such that it spaces the areas of at least one surface fold located in the surface of the filter bag wall away from the wall of the filter bag containment space, and at least one second spacer means is provided to define the deployed portions of the at least one keeps a surface fold away from the wall of the filter bag receiving space.
- the height of the first and / or the second spacer means with respect to the wall of the filter bag receiving space in a range of 5 mm to 60 mm, preferably from 10 mm to 30 mm lie.
- the surface fold may unfold to such an extent Most of the surface of the surface folding forming filter material is flowed. This increases the effective filter area of the filter bag (as opposed to use in a conventional vacuum cleaner) so that the dust holding capacity of the filter bag can be further increased with higher separation efficiency and longer service life over this conventional device.
- Such spacer devices are therefore particularly suitable for the optimization method according to the invention.
- the above-described methods can also be further developed by using an engine / blower unit whose motor / blower characteristic curve is provided such that at aperture 0 a negative pressure of between 6 kPa and 23 kPa, preferably between 8 kPa and 20 kPa, most preferably between 8 kPa and 15 kPa, and a maximum air flow of at least 50 l / s, preferably at least 60 l / s, most preferably at least 70 l / s.
- a filter bag in the form of a flat bag can be used for optimization, and a bottom vacuum cleaner with a filter bag receiving space with rigid walls are used, wherein the filter bag receiving space has a closable by a flap opening with a predetermined opening area the filter bag is inserted into the filter bag receiving space, and wherein the ratio of the area of a rectangle corresponding to the opening area and the area of the filter bag is greater than 1.0.
- the opening area in relation to the surface of the filter bag satisfies this relation, then it is ensured that the filter bag can be introduced into the filter bag receiving space essentially completely unfolded. An overlap of the two individual layers or an overlap of one of the two individual layers with itself is thus avoided. It is from the beginning of the suction to (for this filter bag) the majority of the entire filter surface of the filter bag available and the filter properties of the filter bag, especially the achievable for the filter bag dust holding capacity with high separation efficiency and long life, are thus optimally utilized from the beginning.
- a filter bag in the form of a flat bag can be used, and a floor vacuum cleaner with a rigid wall filter bag receiving space, wherein the ratio of the receiving volume of the filter bag in the filter bag receiving space to the maximum receiving volume of the filter bag greater than 0.70, preferably greater than 0.75, most preferably greater than 0.8.
- a filter bag accommodating space is designed such that the filter bag provided for it fulfills the above-mentioned conditions, then it is ensured that the entire filter surface of the filter bag is available during the entire suction operation (until the bag is changed) and thus the filter bag becomes available is filled optimally during operation.
- the filter properties of the filter bag in particular the dust absorption capacity achievable for the filter bag with high separation efficiency and long service life, are thus optimally utilized until the filter bag is changed.
- the ratio of the surface of the filter bag receiving space and the surface of the filter bag may be greater than 0.90, preferably greater than 0.95, most preferably greater than 1.0.
- All of the above-described methods can be further developed by optimizing the inner diameter of the connecting piece so that it is greater than the smallest inner diameter of the pipe and / or hose connection, in particular less than or equal to the largest inner diameter of the pipe and pipe connection / or hose, is.
- the invention also relates to a vacuum cleaner system comprising a floor vacuum cleaner and a filter bag, the floor vacuum cleaner having a motor-blower unit with a motor-blower characteristic, a filter bag receiving space, a connecting piece for the filter bag and a floor nozzle, and wherein the filter bag comprises a filter material made of nonwoven fabric, wherein in the development and / or in the production of the system one of the previously described methods has been carried out.
- Fig. 1 a - 1 d experimental setup for measuring the air data of motor-blower units according to and analogous to the standard EN 60312;
- 9a-9f are schematic views of an embodiment of the floor vacuum cleaner device resulting as a result of the application of the method according to the invention.
- Figures 10a-10c Air data according to and analogous to the standard EN 60312 for a motor-blower unit and an embodiment of a vacuum cleaning system as a result of the application of the method according to the invention results.
- various motor-fan units with different motor-fan characteristics filter bags of different sizes, different shapes and of different materials, differently shaped filter bag receiving spaces, tubes and tubes with different lengths and inner diameters, in particular conically shaped Hoses, various shaped connecting piece and various floor nozzles combined as long as the efficiency of at least 24%, preferably at least 28%, most preferably at least 32% adjusts the vacuum cleaner in the standard suction on a standard carpet Wilton type with empty filter bag.
- a second embodiment of the invention is first for different motor-blower units with different motor-fan characteristics, for different filter bags of different sizes, different shapes and of different materials, for differently shaped filter bag receiving spaces, for tubes and tubes of different lengths and Inside diameters, especially conical hoses and determined for differently shaped connecting piece an air flow curve.
- This is then matched with different floor nozzles so that in the vacuum cleaning system in accordance with standard suction on a standard carpet of the Wilton type with empty filter bag an efficiency of at least 24%, preferably at least 28%, most preferably at least 32%.
- various motor-fan units with different motor-fan characteristics filter bags of different sizes, different shapes and of different materials, differently shaped filter bag receptacles, tubes and tubes of different lengths and Inner diameters, especially conical hoses, differently shaped connecting piece and various floor nozzles combined until after standard filling of the vacuum system with 400 g of DMT8 standard dust in accordance with standard suction on the standard carpet Wilton, an efficiency of at least 15%, preferably at least 20 %, most preferably at least 25%.
- the optimization is carried out such that, furthermore, the optimization criteria specified in detail in the individual subclaims are met. Any combinations of these criteria are also possible.
- All floor vacuum cleaners obtained as a result of the optimization process of the present invention presented below have a tube with an inner diameter of 36 mm and a length of 94 cm.
- the hose used was a 176 cm long, conical hose having an inner diameter of 46 mm at its end facing the filter bag receiving space and an inner diameter of 42 mm at its end facing the pipe.
- the hose is too Obtain from Guangzhoz Schauenburg-Truplast pants Technoloby Ltd, No 9 Yong'an Street, Pearl River Administration Zone, Nansha District, Guangzhou City, China.
- the connection of the hose to the filter bag receiving space will be explained below in connection with the filter bag receiving space with reference to Fig. 9d in detail.
- the connecting piece used is also shown in Fig. 9d including its dimensions.
- the connection piece of the floor nozzle has an inside diameter of 36 mm.
- the tube with an inner diameter of 36 mm is widened over a length of 30 mm so that it can be pushed over the socket of the floor nozzle, so that the inner diameter of 36 mm is not reduced.
- the filter material CS50 was used for both filter bags.
- Spunbond 17 g / m 2 , netting 8 g / m 2 / meltblown 40 g / m 2 / spunbond 17 g / m 2 / PP staple fibers 50 to 60 g / this material is a laminate with the structure viewed from the outflow side.
- a detailed description of the PP staple fiber layer can be found, moreover, in EP 1 795 247 A1.
- the filter material CS50 can be obtained from Eurofilters NV (Lieven Gevaertlaan 21, Nolimpark 1013, 3900 Overpelt, Belgium). Both the filter bags with and the filter bags without surface folding have the dimensions 290 mm x 290 mm.
- FIG. 3 shows the plan view of a filter material web, which comprises the dovetail folds, and an overlying nonwoven material web, from which ultimately the fleece strips used for folding fixation are formed. From the nonwoven material web (which may for example consist of a spunbonded fabric with 17 g / m 2 ) rectangular holes of 10 mm x 300 mm were punched out. The illustrated cross-sectional view is taken along the line AA.
- the filter bags with surface folds were equipped with diffusers. Diffusers in vacuum cleaner filter bags are known in the art. Thus, the variants used according to the present invention are described in EP 2 263 507 A1. In the present case, these consisted of 22 strips of 1 1 mm wide and 290 mm long.
- the material used for the diffusers was LT75.
- LT75 is a laminate with the following construction: Spunbond 17 g / m 2 / staple fiber layer 75 g / m 2 / Spunbond 17 g / m 2 .
- the layers are ultrasonically laminated using the Ungricht U4026 lamination pattern.
- the filter material LT75 can also be obtained from Eurofilters NV.
- the filter bag receiving space for a flat bag without surface folds has on its insides a grid, which should prevent the filter material conforms flat to the housing wall and can no longer be flowed through.
- the filter bag receiving space for flat bags with surface folds is characterized by larger bow-shaped ribs which intervene between the surface folds of the filter bag to support a folding out of the folds. Apart from the bow-shaped ribs, the filter bag receiving space for both versions has the same dimensions.
- FIG. 4 shows schematic representations of the filter bag receiving space for a filter bag without surface folds.
- Fig. 4 shows the filter bag receiving space in plan view. In this plan view, it has a shape of a square with a side length of 300 mm.
- Fig. 4 also shows sectional views taken along lines A-A and B-B.
- the filter bag receiving space has a maximum height of 160 mm.
- FIG. 7 also shows further heights of the filter bag receiving space shown in FIG. 4.
- the shape describing the interior walls of the filter bag containment space is reminiscent of the shape of a pillow.
- a flat bag without surface folds takes exactly a pillow shape during the suction operation. In this sense, it should also be understood that the filter bag receiving space has a shape that approximately corresponds to the shape of the envelope of the filled filter bag.
- a grid is shown.
- the grid has a wall distance of about 10 mm. This ensures a free circulation of the cleaned air in the filter bag accommodation space.
- Fig. 5 is a schematic illustration of the filter bag receiving space for a surface-folding filter bag.
- the inner dimensions of the filter bag receiving space are the same as those of the filter bag receiving space according to FIG. 4. In that regard, the dimensions in FIG. 7 can also be referred to here.
- a flat bag with fixed surface folds also assumes a pillow shape during the suction operation, so that the filter bag receiving space has a shape that approximately corresponds to the shape of the envelope of the filled filter bag.
- the filter bag receiving space (for flat bags without surface folding, see Fig. 4) has bow-shaped ribs with different heights.
- a device in the form of a small grid is further provided in the region in front of the outlet opening, which prevents the filter bag from being sucked into it due to the suction flow in the outlet opening.
- Fig. 6 corresponds to the sectional view AA in Fig. 5, wherein a filter bag with fixed surface folds in the form of dovetails is inserted.
- the bow-shaped ribs intervene between the surface folds of the filter bag, thus contributing to an expansion of the filter bag. folding of the surface folds.
- FIG. 6 the filter bag wall is kept at a distance from the wall of the filter bag receiving space so as to ensure a flow through the entire filter surface of the filter bag.
- the bow-shaped ribs have a height of 10 mm from outside to inside, 15 mm and 15 mm on the side facing away from the lattice and from outside to inside on the side facing the lattice of 10 mm, 20 mm and 35 mm. The fact that the ribs are broken, a free circulation of the purified air is ensured in the filter bag receiving space.
- Fig. 6 the wall of the filter bag receiving space is further seen.
- the inserted filter bag has a plurality of surface folds, which are shown schematically as partially unfolded.
- the air to be cleaned is sucked into the filter bag through the inlet opening (indicated by the arrow in the filter bag accommodation space) and sucked out via the outlet of the filter bag receiving space (indicated by the arrow from the filter bag receiving space).
- the grille In front of the outlet opening is the grille, which prevents the filter bag from blocking the outlet opening.
- FIGS. 4, 5, 6 and 7 the inlet and outlet openings are shown only schematically. The exact dimensions of the inlet and outlet openings of the filter bag receiving space are shown in FIGS. 9b to 9f.
- a model that accurately reflects the dimensions of the filter bag receiving space according to FIGS. 4, 5 and 7 can be obtained via Eurofilters N.V. be obtained.
- Fig. 8 is a cross-sectional view of the filter bag according to the invention with surface folding and a cross-sectional view of the same with dimensions shown.
- the engine / blower unit used was the Domel KA 467.3.601-4 engine / blower unit (available from Domel, doo Otoki 21, 4228 Zelezniki, Slovenija).
- Domel doo Otoki 21, 4228 Zelezniki, Slovenija
- Table 1 shows the characteristics for further average power consumptions of this motor-blower unit, namely for 425 W, 501 W, 665 W and 825 W.
- Table 1 are also specific air data for in the soil vacuum cleaner devices according to the Technology used motor-blower units shown (see also Fig. 2a and Fig. 2d).
- Table 1 Specific air data of the motor-blower units (invention and state of
- Domel's Motor Blower units which operate at a line voltage that results in an average power consumption of over 600W, show significantly higher maximum airflow and higher maximum airflow than the unit used by Siemens.
- Miele's motor-blower unit whose average power consumption is significantly higher than that of the two Domel units, there is a significantly lower maximum vacuum and a higher maximum airflow, resulting in a lower maximum airflow overall.
- the maximum efficiency achieved with the Domel units is higher than the maximum efficiency of the Miele unit.
- FIGS. 9a to 9f show the schematic structure of floor-vacuum cleaner devices which have been found to be particularly advantageous from the optimization method according to the invention.
- the filter bag accommodation space (see also FIGS. 4 to 7) is shown in FIG. 9a.
- the hose of the canister vacuum cleaner (with handle, pipe and floor nozzle) is connected to this filter bag receiving space via the connecting piece shown in detail in FIGS. 9c and 9d.
- the hose provided with a corresponding counterpart is connected. How this counterpart is to be formed necessarily results from the fitting according to FIG. 9d and the fact that the inner diameter of the hose is 46 mm.
- the upper part of the connecting piece according to FIG. 9d is the connecting piece for the filter bag. At these, the holding plate and the inlet opening of the filter bag to be adjusted so that the filter bag can be placed airtight in the filter bag receiving space.
- FIG. 9b the connection of the filter bag receiving space to the motor / blower unit takes place via the connecting piece shown in detail in FIGS. 9e and 9f.
- the motor-blower unit is installed in a Schalldämmgephaseuse, the construction of which results from Fig. 9a.
- the plate of the silencer housing, to which the motor-blower unit is attached was made of aluminum with the thickness of 5 mm. Aluminum plates of 2 mm thickness were used for the other panels of the soundproof enclosure. This case was dampened (apart from the openings shown in Fig. 9a) with acoustic foam in a thickness of 25 mm.
- Figures 9c to 9f are technical drawings of a concrete embodiment of the connection of the filter bag receiving space to the hose and to the motor / blower unit used in the present invention. These technical drawings allow an immediate replica of the fittings.
- any other configurations are possible as long as the internal dimensions for the air ducts are not changed (in particular the air ducts in the connecting pieces according to FIG. 9d and FIG. 9e).
- Table 2 shows specific air data, as shown in part in Figs. 2b and 2e for the prior art and in Fig. 10b according to the invention as described above.
- this table gives specific air data for further embodiments of the invention for floor-vacuum systems, in particular when using motor-blower units of other average power consumption.
- Table 2 Special air data with empty filter bag (invention and prior art)
- Table 2 shows in the "Specific values” line the mean power consumption and maximum values for negative pressure, air flow, air flow and efficiency.
- the air data are given, which are set at the aperture 40, the standard suction on hard floor (see EN 6031 2, Chapter 5.1) and the standard suction on the standard carpet type Wilton.
- the efficiency on hard floor for the floor-vacuum cleaning systems according to the invention is substantially higher than for the floor-vacuum cleaning systems of the prior art.
- the electrical power used is converted much more efficiently into air power, which makes it possible to achieve the same air output with significantly lower electrical power consumption (for example, Wilton with the system according to the invention (filter bag with surface folding) with a mean electrical power consumption of 491 W achieves a similar air output as the Siemens system at 750 W, the difference being even greater in the Miele system, the Miele system has to use 1321 W to achieve the same air output on Wilton as the 587 W system (filter bag with surface folding).
- the available for sucking air flow is the ground-vacuum systems of the invention for all versions on the value of the Siemens system (also for the versions with lower power consumption) and for most versions (at much lower power consumption) above the value of Miele system ..
- Table 3 corresponds to Table 2, but with no empty filter bag but a 400 g DMT8 standard dust filled filter bag was inserted into the soil vacuum cleaner. The differences between the state of the art and the floor-vacuum cleaning systems according to the invention are even greater here than in the case of the empty filter bag.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/386,705 US10045674B2 (en) | 2012-03-27 | 2013-02-21 | Method for optimizing a vacuum cleaning apparatus having a cylinder vacuum cleaner or upright vacuum cleaner and a filter bag |
CN201380015698.8A CN104203059A (zh) | 2012-03-27 | 2013-02-21 | 具有圆筒式真空吸尘器或立式真空吸尘器和过滤袋的真空清洁设备的优化方法 |
RU2014133466A RU2623670C2 (ru) | 2012-03-27 | 2013-02-21 | Способ оптимизирования устройства для всасывания пыли, содержащего напольный или вертикальный пылесос и фильтровальный мешок |
AU2013242328A AU2013242328B8 (en) | 2012-03-27 | 2013-02-21 | Method for optimizing a vacuum-cleaning apparatus having a cylinder vacuum cleaner or upright vacuum cleaner and a filter bag |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12002206.6A EP2644075A1 (de) | 2012-03-27 | 2012-03-27 | Verfahren zum Optimieren einer Vorrichtung zum Staubsaugen mit Boden- oder Upright-Staubsaugergerät und Filterbeutel |
EP12002206.6 | 2012-03-27 |
Publications (1)
Publication Number | Publication Date |
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WO2013143789A1 true WO2013143789A1 (de) | 2013-10-03 |
Family
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PCT/EP2013/053461 WO2013143789A1 (de) | 2012-03-27 | 2013-02-21 | Verfahren zum optimieren einer vorrichtung zum staubsaugen mit boden- oder upright-staubsaugergerät und filterbeutel |
Country Status (5)
Country | Link |
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US (1) | US10045674B2 (de) |
EP (1) | EP2644075A1 (de) |
CN (1) | CN104203059A (de) |
RU (1) | RU2623670C2 (de) |
WO (1) | WO2013143789A1 (de) |
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CN108606720A (zh) * | 2016-12-13 | 2018-10-02 | 苏州宝时得电动工具有限公司 | 集尘装置以及具有该集尘装置的吹吸机 |
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RU2014133466A (ru) | 2016-05-20 |
AU2013242328A8 (en) | 2016-09-08 |
RU2623670C2 (ru) | 2017-06-28 |
CN104203059A (zh) | 2014-12-10 |
AU2013242328B2 (en) | 2016-05-05 |
EP2644075A1 (de) | 2013-10-02 |
US20150047145A1 (en) | 2015-02-19 |
US10045674B2 (en) | 2018-08-14 |
AU2013242328A1 (en) | 2014-09-18 |
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