EP2926705A1 - Vorrichtung zum Staubsaugen mit einem Kesselstaubsauger - Google Patents

Vorrichtung zum Staubsaugen mit einem Kesselstaubsauger Download PDF

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Publication number
EP2926705A1
EP2926705A1 EP14163582.1A EP14163582A EP2926705A1 EP 2926705 A1 EP2926705 A1 EP 2926705A1 EP 14163582 A EP14163582 A EP 14163582A EP 2926705 A1 EP2926705 A1 EP 2926705A1
Authority
EP
European Patent Office
Prior art keywords
measuring chamber
negative pressure
filter bag
kpa
aperture
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.)
Withdrawn
Application number
EP14163582.1A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ralf Sauer
Jan Schultink
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eurofilters Holding NV
Original Assignee
Eurofilters Holding NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eurofilters Holding NV filed Critical Eurofilters Holding NV
Priority to EP14163582.1A priority Critical patent/EP2926705A1/de
Priority to CN201580030245.1A priority patent/CN106455882B/zh
Priority to PCT/EP2015/055142 priority patent/WO2015150041A1/de
Priority to US15/300,203 priority patent/US10130223B2/en
Publication of EP2926705A1 publication Critical patent/EP2926705A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • 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
    • A47L9/12—Dry filters
    • A47L9/122—Dry filters flat
    • 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
    • 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
    • A47L9/1409—Rigid filtering receptacles
    • 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
    • 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
    • A47L9/22—Mountings for motor fan assemblies
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/248—Parts, details or accessories of hoses or pipes
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers

Definitions

  • the invention relates to a device for vacuuming comprising a boiler vacuum cleaner with a connected to the housing of the boiler vacuum cleaner suction hose, and comprising a filter bag made of nonwoven fabric.
  • Nominal power consumption The rated power consumption in W denotes the electrical input power specified by the manufacturer, with devices having other functions in addition to the vacuum cleaner function, only the electrical power consumption when used as a vacuum cleaner is relevant (VO 666/2013, Annex II, para. 2, letter k).
  • EN 60312 EN 60312 designates - unless otherwise stated - the standard DIN EN 60312-1 (VDE 0705-312-1) in the January 2014 edition: Domestic vacuum cleaners - Part 1: Dry vacuum cleaners - Test method for determining the performance characteristics (IEC 60312-1: 2010, modified + A1: 2011, modified); German version EN 60312-1: 2013.
  • the air data of a vacuum cleaner are determined in accordance with EN 60312 section 5.8.
  • the measuring device B is used in accordance with section 7.3.7.3. If motor-blower units are measured solo, ie without a vacuum cleaner housing, the measuring device B is also used. For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • Power consumption of a vacuum cleaner The power consumption P 1 of a vacuum cleaner at a given orifice is determined in accordance with EN 60312 section 5.8.
  • the measuring device B is used in accordance with section 7.3.7.3. For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • Power consumption of a motor-blower unit The power consumption P 1 of a motor-blower unit at a given orifice is also determined in accordance with EN 60312 section 5.8.
  • the measuring device B is used in accordance with section 7.3.7.3. For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • Average power consumption when determining the performance characteristics of a filled dust container is determined on the basis of EN 60312 (see in particular chapter 5.9). Deviating from this standard, the measurement is carried out with the measuring chamber B at aperture 8.
  • the average power consumption in the determination of the functional properties with a filled filter bag is defined as the mean value of the power consumption when the filter bag is empty and the power consumption when the filter bag is filled.
  • Air flow The air flow is determined according to EN 60312 with the measuring chamber according to version B.
  • the air flow can be determined at different apertures.
  • EN 60312 measurements are made with a 30 mm diameter orifice. If this is measured differently for another aperture, this is stated.
  • this air flow is often referred to as volume flow or suction air flow.
  • Airflow drop The airflow drop is determined according to EN 60312 chapter 5.9 with the measuring chamber according to design B.
  • the measuring chamber is equipped with a 40 mm perforated plate (according to standard 30 mm).
  • the vacuum values h f in the measuring chamber are converted into an air flow according to chapter 7.3.7.
  • the difference between the airflow when the filter bag is empty and the airflow when the filter bag is loaded is called airflow waste.
  • Disposable filter bag A disposable filter bag or disposable bag in the sense of the present invention is understood to mean a disposable filter bag.
  • a flat bag is understood to mean filter bags whose filter bag wall is formed from two individual layers of filter material with the same area such that the two individual layers are connected to one another only at their peripheral edges (the term "same area” does not of course exclude the two individual layers from one another distinguish that one of the layers has an entrance opening).
  • connection of the individual layers can be realized by one or more (for example four) welding or adhesive seams along the entire circumference of the two individual layers.
  • the filter bag can be formed by a single layer of filter material such that the single layer is folded around one of its symmetry axes and the remaining open peripheral edges of the resulting two partial layers are welded or glued (so-called tubular bag).
  • tubular bag In such a production therefore one circumferential or more (for example three) welding or gluing seams are necessary. Two of these seams then form the filter bag edge, the third seam can also form a filter bag edge or lie on the filter bag surface.
  • Each of the aforementioned single layers of filter material may comprise multiple layers of nonwoven fabric, as is common for nonwoven filter bags today.
  • the welded or adhesive seams can also be designed as a spiral fold.
  • Flat bags may also have so-called gussets. These gussets can be completely unfoldable.
  • a flat bag with such gussets is for example in the DE 20 2005 000 917 U1 shown (see there FIG. 1 with folded gussets and FIG. 3 with unfolded gussets).
  • the gussets may be welded to portions of the peripheral edge.
  • Such a flat bag is in the DE 10 2008 006 769 A1 shown (see there in particular FIG. 1 ).
  • EP 2 366 320 A1 and EP 2 366 321 A1 disclose filter bag with surface wrinkles in the context of the present application.
  • Suction power is the product of negative pressure [kPa] and air flow [l / s] and is designated P 2 according to EN 60312.
  • the efficiency of the motor-blower unit or a vacuum cleaner is calculated from the suction power P 2 and the power consumption P 1 according to EN 60312 chapter 5.8 (see in particular chapter 5.8.4., Paragraph 4).
  • the motor-blower unit or the vacuum cleaner is connected to the measuring chamber (version B).
  • version B For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • the nominal diameters d 0 of the diaphragms used can be found in the table in Section 7.3.7.3.
  • P 1 is the power consumption of the vacuum cleaner (for a given aperture) and P 2 is the air power (for a given aperture), ie the product of airflow (see above) and negative pressure (see below).
  • Vessel vacuum cleaner Construction of a vacuum cleaner in which a removable cover with the motor-blower unit is arranged on a mostly cylindrical dust collecting chamber. Boiler vacuum cleaners have filter bag holding spaces from 6 l to 25 l. Such a boiler vacuum cleaner is in FIG. 6 shown.
  • Negative pressure in the measuring chamber at a given orifice is in accordance with EN 60312, Chapter 5.8.
  • the motor-blower unit is connected directly to the measuring chamber (version B).
  • version B version B
  • any necessary intermediate pieces for connection to the measuring chamber the explanations in chapter 7.3.7.1 apply.
  • the nominal diameters d 0 of the diaphragms used are given in section 7.3.7.3.
  • Average cross-sectional area of a suction hose To determine the average cross-sectional area of a suction hose, the cross-section of the suction hose is measured at 10 points uniformly distributed over the entire length of the suction hose and the mean value of these measurements is determined. The first measurement is performed at one end of the tube and the tenth measurement at the other end of the tube. The measurement of the cross-section is determined by internal gauge gauges corresponding to the shape of the cross-sectional area to be measured. For hoses that change their cross-sectional area, the limit gauge is inserted into the suction hose in the direction of the increasing cross-sectional area. Apart from irregular Cross-sectional areas can thus also determine the cross-sectional areas of spiral-wound or helically wound or otherwise structured suction hoses. This method can be used in particular in conical suction hoses.
  • Pouch area of a filter bag designates the area that lies between the marginal welds that define the outer shape of the filter bag. Gussets and surface wrinkles must be taken into account for the calculation. The surface of the filling opening including a weld surrounding this opening is subtracted from the surface. It only means the theoretically usable area. Differences in the flow through the bag or due to incomplete unfolding of the filter bag are not taken into account. For filter bags that are not flat bags, of course, all additional surfaces (eg block bottom bag with side surfaces and end face) are used to determine the bag area.
  • volume Filter bag holding space The volume can be determined from the 3D drawing data of the vacuum cleaner or determined by pouring water or granules.
  • deflection devices for deflecting air in the sense of the application are, for example, in WO 2007 059936 A1 .
  • Bag cage means a device which ensures that there is a gap between the filter bag and the wall of the filter bag space. It is important to ensure that the contact area between the filter bag and the bag basket is as small as possible.
  • the bag basket can be made of any materials and be removable or permanently installed.
  • An example of a bag basket is in FIG. 5 shown.
  • a 3D record of in FIG. 5 described bag basket can be obtained from Eurofilters NV, Lieven Gevaertlaan 21, 3900 Overpelt, Belgium. If filter bags with surface folds are used, then a bag basket can be used which is specially adapted to these surface folds. How such a bag cage is designed, the WO 2012 126612 (especially Figures 3 and 4 ).
  • An efficient vacuum cleaner has an energy efficiency rating of B or better (according to VO 665/2013, ANNEX I) and at the same time a cleaning class of C or better (according to VO 665/2013, APPENDIX I).
  • the VO 666/2013 requires the nominal power consumption of vacuum cleaners from 2017 to be limited to below 900 W.
  • the VO 665/2013 means that in the longer term the annual energy consumption of a vacuum cleaner should be less than 10 kWh. This results in a rated power consumption of a vacuum cleaner of less than 300 W.
  • the users of devices for vacuuming however, expect that the cleaning performance compared to devices for vacuuming, as they are realized today with much higher recording power, not deteriorate. This is also taken into account by Regulation 665/2013, for example by Sets the requirement for an A rating (carpet cleaning class) for the dust absorption of carpet to ⁇ 91%.
  • a Numatic Henry HVR200A used in the household and in the commercial sector achieves the air data according to EN 60312 chapter 5.8.4) at aperture 8 (40 mm) and a power consumption P 1 of 1054 W (suction power setting at the vacuum cleaner stage : Hi, in the following short HI) only a resulting suction air flow of 29.3 l / s.
  • a very good dust absorption of carpets (cleaning class C or better) is hardly possible.
  • the resulting air flow at a power consumption P 1 of 472 W (suction power setting on the device level: Lo, hereinafter referred to as LO) is insufficient for satisfactory dust absorption.
  • LO power consumption of 472 W (at aperture 8) only an air flow of 21.3 l / s is achieved.
  • FIG. 1a shows by way of example the air flow (volume flow in l / s) achieved by a Numatic Henry HVR200A at an average power consumption when determining the performance characteristics with a filled dust container of 465 W (LO) or 1026 W (HI) depending on the filling up to a maximum of 800 g DMT type 8 according to EN 60312.
  • LO volume flow in l / s
  • HI 1026 W
  • the mean electrical input power of the vacuum cleaner must be clearly differentiated from the mean electrical input power of the motor-blower unit, since the total mean electrical input power of the motor-blower unit is substantially converted into the air flow to be achieved, whereas the average electrical input power of the vacuum cleaner for compensation the flow losses that result from the flow paths in the vacuum cleaner (from the floor nozzle to the air outlet from the device - without motor-blower unit) is spent.
  • the average electrical input power of the Numatic Henry HVR200A Motor Blower Unit is 968 W (HI) or 503 W (LO). With this average recording power, at aperture 8 (this aperture corresponds approximately to the conditions that are present on hard floor suction), an air flow of about 49.0 l / s (HI) and about 36.7 l / s (LO) can be achieved. Finally, when using this motor blower unit in the Numatic Henry HVR200A, the airflows (which are actually available for vacuuming) are 29.3 l / s (HI) and 21.3 l / s (LO) leads.
  • the suction hose of the Numatic Henry HVR200A has an average cross-sectional area of 7.9 cm 2 .
  • the object of the invention is to provide a device for vacuuming with a tank vacuum cleaner and filter bags, in which the efficiency is improved over the devices according to the prior art and in the determination of the air data according to EN 60312 (Section 5.8.4) at aperture 8 (40 mm) a suction air flow of more than 33 l / s is achieved, so that a cleaning class of C according to VO 665/2013 or better achievable, and the average electrical power of the vacuum cleaner as possible is low, so that an energy efficiency class of B according to VO 665/2013 or better is achieved, so an efficient vacuum cleaner in the sense of the present invention is realized.
  • a device for vacuuming comprises a boiler vacuum cleaner with a connected to the housing of the boiler vacuum cleaner suction hose and a filter bag, in particular a disposable filter bag, made of nonwoven fabric with a bag area of between 2500 cm 2 and 5000 cm 2 , the boiler vacuum cleaner a motor-blower unit with a mean electrical input power between 1000 W and 200W.
  • the motor-blower unit is designed such that at a mean electrical power input between 1000 W and 800 W, a negative pressure in the measuring chamber at aperture 6 (23 mm) of greater than 12.5 kPa and a negative pressure in the measuring chamber at aperture.
  • This particular characteristic of the motor-blower unit differs from the characteristic usually in devices for vacuuming inserted motor-blower units.
  • a motor-blower unit as specified above in combination with a suction hose with a middle Cross-sectional area of at least 9 cm 2 particularly efficiency-enhancing for boiler vacuum cleaner can be used and are comparable with the disposable filter bags made of nonwoven fabric in their cleaning effect with devices for vacuuming, as they are available today only with much higher recording power.
  • the suction hose must have an average cross-sectional area of at least 9 cm 2 , in particular at least 11 cm 2 or 13 cm 2 .
  • the boiler vacuum cleaner may in particular have a filter bag receiving space with a volume of 7 l to 15 l.
  • the volume can be determined by pouring water or granules according to EN 60312.
  • the suction hose may be at least partially tapered and have a larger cross-sectional area at an end proximate to the motor / blower unit than at an end remote from the motor / blower unit.
  • the suction hose may have a minimum and a maximum cross-sectional area and the minimum diameter of the suction hose may be reduced by at least 5%, in particular at least by 20%, from the maximum diameter.
  • the smallest diameter of the conical suction hose may be 35 mm at the near end and 47 mm at the far end.
  • the suction hose may have a cylindrical shape throughout. In addition to good handling, a conical shape of the suction hose can also increase the efficiency of the boiler vacuum cleaner.
  • the suction hose can have a length of 1 m to 3 m.
  • a suction pipe connected to the suction hose may have a diameter of more than 30 mm, preferably more than 33 mm and particularly preferably more than 36 mm.
  • the motor-blower unit may have an efficiency according to EN 60312 of at least 35%, preferably of at least 38% and particularly preferably of at least 40%, at aperture 7 (30 mm). This development of the invention leads to particularly efficient devices for vacuuming.
  • the boiler vacuum cleaner on a bag basket which is designed to receive a filter bag and at least partially spaced it from an inner housing wall of the boiler vacuum cleaner.
  • a reduction of the filter performance can be avoided by abutment of the filter surface on an inner wall of the filter bag receiving space.
  • An exemplary embodiment of a bag cage for the Numatic Henry HVR200A is shown in FIG FIG. 5 shown.
  • the bag basket for receiving a filter bag for example, a filter bag with surface wrinkles, be formed.
  • the filter bag can be provided in the form of a flat bag.
  • the flat bag form is the most common form for nonwoven bags since bags of this shape are very easy to manufacture.
  • nonwoven filter material is very difficult to permanently fold due to the high resilience, so that the production of more complex bag shapes, such as block bottom bags or other bottom bag shapes, although possible, but very expensive and expensive.
  • the filter bag may in particular have surface folds.
  • the filter bag may be provided with at least one deflection device. Accordingly, the above-mentioned bag basket can then be designed to receive filter bags with surface folds.
  • an engine-blower unit having a specific characteristic is used in combination with a relatively large-diameter suction hose.
  • this combination leads to efficient vacuum cleaners in the sense of the invention, ie to a vacuum cleaner which has an energy efficiency class of B or better (according to VO 665/2013, ANNEX I) and at the same time a cleaning class of C or better (according to VO 665 / 2013, ANNEX I).
  • the motor-blower unit is characterized by a high volume flow, a high air flow and a high efficiency at aperture 7 (30 mm) and 8 (40 mm).
  • FIGS. 3a and 3b Air data for an exemplary embodiment of the motor-blower unit, as used in the invention, shown here, an engine-blower unit the company Domel with the type designation 467.3.601-7.
  • the abscissa shows the suction air flow in units of dm 3 / s or l / s.
  • the ordinate shows values of the negative pressure (in kPa), the efficiency (in%), the power (in W) and the air power (in W).
  • FIG. 3a results for a mean electrical input of about 480 W, in FIG. 3b shown by about 976 W.
  • FIGS. 2a and 2b for comparison, the air data for a motor-blower unit of the prior art.
  • FIG. 2a The air data for a mean electrical input of about 503 W and in FIG. 2b shown by about 968 W.
  • Table 1 compares the relevant measurements for an exemplary embodiment of the engine blower unit of the present invention and a prior art motor blower unit.
  • both the air flow at aperture 7 and aperture 8 and the air flow at aperture 7 and aperture 8 and the efficiency at aperture 7 and aperture 8 for the exemplary embodiment are much higher than for the prior art.
  • the airflow at orifice 8 and a mean electrical input power of about 480 W for the exemplary embodiment is about three times as high as in the prior art.
  • the efficiency and air flow of the present embodiment are superior to the prior art motor-blower unit.
  • a very good air flow can be achieved with which a good cleaning efficiency class can be realized.
  • Figure 4a and Figure 4b is shown for inventive devices for vacuuming the dependence of the achieved air flow of the filling amount of the filter bag.
  • the results shown are similar to those of the prior art vacuuming apparatuses as shown in Figs FIGS. 1a and 1b shown is to compare.
  • FIGS. 4a and 4b show results for a mean power of about 460 W or about 1020 W using a flat bag and a conical tube with a minimum diameter of 42 mm and a maximum diameter of 47 mm with and without the use of a bag basket.
  • the filter bag used has an area of 3080 cm 2 .
  • the filter material was that of Eurofilters NV, Lieven Gevaertlaan 21, 3900 Overpelt, Belgium used material related to SMS92.
  • the embodiment of the invention corresponds to the prior art, as described above. Even with a mean intake capacity of only approx.
  • the achievable volume flows are significantly higher than in the prior art, with which at an average power of about 465 W, only a flow rate of 21 l / s with empty filter bag and 1026 W, a volume flow with an empty filter bag of almost 30 l / s can be achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP14163582.1A 2014-04-04 2014-04-04 Vorrichtung zum Staubsaugen mit einem Kesselstaubsauger Withdrawn EP2926705A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP14163582.1A EP2926705A1 (de) 2014-04-04 2014-04-04 Vorrichtung zum Staubsaugen mit einem Kesselstaubsauger
CN201580030245.1A CN106455882B (zh) 2014-04-04 2015-03-12 具有罐式真空清洁器的真空清洁装置
PCT/EP2015/055142 WO2015150041A1 (de) 2014-04-04 2015-03-12 Vorrichtung zum staubsaugen mit einem kesselstaubsauger
US15/300,203 US10130223B2 (en) 2014-04-04 2015-03-12 Vacuum cleaning device with a tank-type vacuum cleaner

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CN106455882B (zh) 2019-08-20
US20170181590A1 (en) 2017-06-29

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