• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Filter device comprising a filter housing (1) for a filter medium formed from fibrous material (2), wherein the filter housing (1) has an inlet for a liquid to be filtered and a filtered liquid intake opening (8) in which it is proposed that the filter housing (1) is divided into a suction-side pre-chamber (5) and an inlet-side filter chamber (6) by means of an inner partition plate (4) provided with passage openings (11) for the liquid, the pre-chamber (5) having a comparison with Suction opening (8) extended or extending from the suction port (8) to the partition plate (4) has a cross-section, and the filter chamber (6) with the fiber material (2) formed filter medium is filled and having the inlet. The filter chamber (6) enables a secure and dimensionally stable receptacle for the fiber material (2), whereby the risk of pressure and compression of the filter medium is reduced by means of the design according to the invention.
    公开号:AT516276A4
    申请号:T50223/2015
    申请日:2015-03-19
    公开日:2016-04-15
    发明作者:Egon Gruber；René Orgel-Zechner
    申请人:Egon Gruber；
    IPC主号:
    专利说明:

    The invention relates to a filter device comprising a filter housing for a filter medium formed of fiber material, wherein the filter housing has an inlet for a liquid to be filtered and a suction opening for the filtered liquid, according to the preamble of claim 1.
    Filtering devices of the type mentioned are used in particular for aquariums, swimming ponds, swimming pools or whirlpools. In the conventional way, sand filters or cartridge filters are mainly used, but a new filter medium in the form of fibrous material has also been proposed. These are ball-shaped compacted plastic fibers with different surface structures and cross-sections, which have high capacity for dirt particles and suspended particles. Such a filter medium allows for nearly pressureless filtration with a pressure loss during filtration of a few millibars. A disadvantage of this filter medium, however, is that it can easily come to a compression or compression of the fiber material in the application, whereby the depth filter effect can be significantly reduced. The filter medium is subsequently compacted into a surface filter with low absorption capacity and must be replaced relatively quickly.
    It is therefore the object of the invention to provide a filter device which enables safe operation using a filter medium formed of fibrous material and prolongs the useful life of this filter medium.
    This object is achieved by the features of claim 1. Claim 1 relates to a filter device with a filter housing for a filter medium formed of fiber material, wherein the filter housing has an inlet for a liquid to be filtered and a suction port for the filtered liquid, and in which it is proposed that the filter housing by means of an inner partition, which with through holes for the liquid is subdivided into an inlet-side pre-chamber and an inlet-side filter chamber, the prechamber having a cross-section widened in comparison to the suction opening or extending from the suction opening to the partition plate, and the filter chamber is filled with the filter medium formed of fibrous material and has the inlet.
    The filter chamber forms a secure and dimensionally stable receptacle for the fiber material. The suction port is connected to a pump which ensures a suction action in the suction port and effects a flow of liquid within the filter case from the inlet to the suction port. In order to reduce the flow pressure on the fiber material and to gently surround the fiber material with the liquid to be filtered and flowing inside the filter housing from the inlet to the suction port, there is further provided a suction-side prechamber which has an enlarged cross-section compared to the suction port or has a cross-section widening from the suction port to the separation plate. The suction effect of the suction port is reduced in the filter housing in this way. The reduced suction further propagates via the pre-chamber and the passage openings of the partition plate into the filter chamber and from there to the inlet of the filter chamber, where the liquid to be filtered is sucked in from the outside of the filter housing. For this purpose, approximately inlet openings are provided in a cover of the filter chamber, through which the liquid to be filtered is sucked into the filter chamber, where it flows through the filter medium formed from fiber material. The cover is preferably removable, so that the filter medium can be replaced if necessary.
    The partition plate can be made approximately so that it is insertable into the filter housing and is supported by spacers on the bottom plate of the filter housing. According to another embodiment, however, provision may also be made for the partition plate to form a passage surface provided with passage openings for a pipe section which runs into the intake opening and the pre-chamber and which supports itself on the floor plate and whose lateral surface has apertures opening into the prechamber, in which case the pipe section constitutes the spacer for the separation plate. The filter chamber with the filter medium is thus connected to the suction opening via the pipe section, so that the liquid to be filtered is sucked from the suction opening via the pipe section and the passage openings of the cover surface out of the filter chamber. However, since the lateral surface of the pipe section is provided with perforations, the filtered liquid is sucked into the prechamber also via passages of the partition plate located outside the cover surface. The suction pressure existing in the filter chamber is thus reduced again, but the suction opening does not suddenly expand to the cross section of the
    Prechamber, but initially continues largely unchanged in the pipe section, wherein the openings in the lateral surface of the pipe section ensure a continuously decreasing in the axial direction flow pressure.
    However, it would also be conceivable to carry out the pre-chamber in the shape of a truncated cone with a cross-section widening from the suction opening to the separating plate. Also in this way, a continuously decreasing flow pressure in the axial direction can be achieved.
    In order to optimize the flow conditions and allow a particularly simple construction, a rotationally symmetrical design is preferably proposed in that the filter housing is cylindrical and the partition plate is designed as an insert disc which divides the filter housing into a cylindrical pre-chamber and a cylindrical filter chamber, wherein the suction opening in a bottom plate of the filter housing is arranged and the inlet is arranged on the side facing away from the bottom plate of the filter chamber. If an inserted pipe section is used for such an rotationally symmetrical design, the pipe section preferably runs coaxially with the cylinder axis of the filter housing.
    The invention will be explained in more detail below with reference to exemplary embodiments with the aid of the enclosed figures. It show here the
    1 is a perspective view of an embodiment of a filter device according to the invention,
    2 shows a side view of the embodiment according to FIG. 1 with the cutting plane A-A shown, FIG.
    3 shows a sectional view according to the sectional plane A-A of FIG. 2 without filter medium, FIG.
    4 is a perspective view of the partition plate for an embodiment according to FIGS. 1-3,
    5 is a side view of the partition plate according to FIG. 4,
    6 shows a perspective sectional view of a further embodiment of a filter device according to the invention without filter medium,
    7 is a perspective sectional view of the filter device according to FIG. 6 with filter medium, and FIGS
    8 is a sectional view of the filter device according to FIG. 7.
    With reference to FIGS. 1 to 5, first, a first embodiment of a filter device according to the invention will be explained. In the embodiment shown, the filter housing 1 is cylindrical and has a cover 3 provided with inlet openings 14. The inlet openings 14 form the inlet of the filter housing 1 and may vary in shape, number and size. The cover 3 is preferably designed to be removable with the aid of a closure device 15, so that the filter medium 2 located inside the filter housing 1 can be exchanged if necessary. FIG. 2 shows a side view of the filter housing 1, the connection flange 10 of the filter device according to the invention being visible, which is located on the side of the filter housing 1 facing away from the cover 3. To the connection flange 10 may be connected a pump which sucks the filtered liquid. The connecting flange 10 may be provided with an external thread for this purpose.
    FIG. 3 shows a sectional view according to the sectional plane A-A of FIG. 2 without filter medium. In the interior of the filter housing 1, a partition plate 4 is arranged, which is disc-shaped and rests tightly against the inner housing shell. The separation plate 4 is insertable into the filter housing 1 and has spacers 13 projecting from the separation plate 4, as more particularly also seen in Figs. 4 and 5. Fig. 4 shows a perspective view of the separation plate 4 for an embodiment according to Figs. 1-3, and Fig. 5 shows a side view of the separation plate according to Fig. 4. By means of the spacers 13, the partition plate 4 inserted in the filter housing 1 is supported by a Bottom plate 7 of the filter housing 1 from. In this way, the inner space of the filter housing 1 is divided into a suction-side pre-chamber 5 and an inlet-side filter chamber 6, the filter chamber 6 is located in the
    Filter medium in the form of loosely inserted fiber material 2, which is not indicated in FIG.
    The connection flange 10 arranged on the bottom plate 7 opens into the prechamber 5 via an intake opening 8. The flow pressure of the liquid to be filtered through the filter device according to the invention is generated, as already mentioned, by means of a pump, which is not shown in FIGS. 1-8. The suction generated by the pump in the suction port 8 subsequently propagates via the pre-chamber 5 and the through-holes 11 of the partition plate 4 into the filter chamber 6 and from there to the inlet of the filter chamber 6, where the liquid to be filtered is sucked from the outside of the filter housing 1. For this purpose, the inlet-forming inlet openings 14 are provided in a cover 3 of the filter chamber 6, through which the liquid to be filtered is sucked into the filter chamber 6, where it flows through the filter medium formed of fiber material 2.
    In the course of operation of the filter device according to the invention, the liquid to be filtered first flows into the filter chamber 6 via the inlet openings 14. After the liquid to be filtered has passed through the filter medium of the filter chamber 6, the filtered liquid subsequently leaves the filter chamber 6 via the passage openings 11 of the separating plate 4 and passes into the antechamber 5. The liquid collected and filtered in the prechamber 5 finally leaves the filter housing 1 via the suction opening 8. The flow pressure increases greatly when it passes from the prechamber 5 into the suction opening 8 due to the narrowing cross section. However, this increase does not adversely affect the fiber material 2 because it is kept away from this area by means of the separation plate 4. In other words, the pre-chamber 5 reduces the flow pressure on the fiber material 2 located in the filter chamber 6 because the flow area is smaller than that of the suction port 8 enlarged cross-section of the antechamber 5vergrößert. The fiber material 2 is thus washed gently with the liquid to be filtered.
    A second embodiment of the filter device according to the invention will be explained with reference to FIGS. Again, a partition plate 4 is provided, which is designed as a cutting disc and tight against the inner housing shell of the cylindrically shaped filter housing 1. In this way, the filter housing 1 is in turn divided into an antechamber 5 and a filter chamber 6, which are also each cylindrical. In a bottom plate 7 of the filter housing 1 there is an intake opening 8 for the liquid to be filtered. However, the suction port 8 opens into a pipe section 9, which is disposed within the pre-chamber 5 and the Vorkammer 5quert, wherein it is supported on the bottom plate 7. The pipe section 9 has, in the embodiment shown, a cross-section which substantially corresponds to that of the intake opening 8, but it could also be designed such that it has a cross-section widening from the intake opening 8 to the partition plate 4. The mouth of the pipe section 9 facing away from the suction opening 8 is covered by the separating plate 4. The partition plate 4 thus forms a cover surface for the pipe section 9, but also has in this area through openings 11, through which the filtered liquid from the filter chamber 6 in the pipe section 9 can flow. The lateral surface of the pipe section 9 also has openings 12 through which filtered liquid can flow from the pre-chamber 5 into the pipe section 9 and thus further to the suction opening 8. The openings 12 in the lateral surface of the pipe section 9 are designed as axially extending slots in the embodiment shown, but they can be designed differently in shape, number and size in order to optimize the flow and pressure conditions in each case. The liquid contained in the filter chamber 6 can also flow into the pre-chamber 5 via passage openings 11 of the separating plate 4 located outside the cover surface. The pipe piece 9 ensures a spacing of the partition plate 4 from the bottom plate 7 and could also be formed on the partition plate 4, so that an insert body is formed, which is supported on the bottom plate 7 via the pipe section 9. In the embodiment according to FIGS. 1 to 5 and in FIGS. 6 to 8, the filter chamber 6 serves in each case to receive the filter medium formed from fiber material 2, as can be seen from FIGS. 7 and 8. In the example shown, the fibrous material 2 is about ball-shaped polyester fibers.
    In the course of operation of the filter device according to the invention, the liquid to be filtered flows via the inlet openings 14 into the filter chamber 6. After the passage of the liquid to be filtered through the filter medium of the filter chamber 6, the filtered liquid subsequently leaves the filter chamber 6 via the passage openings 11 of the separating plate 4 and passes either directly into the pipe section 9, or over the top surface of the pipe section 9 lying through openings 11 in the pre-chamber 5, from where it flows through the openings 12 in the pipe section 9. The suction inside the pipe piece 9 is thus continuously reduced from the suction port 8 to the separation plate 4, but a sudden decrease in the flow pressure is avoided. Again, the flow pressure on the fiber material 2 is reduced, so that the fiber material 2 is gently washed around with the liquid to be filtered.
    The filter chamber 6 enables a secure and dimensionally stable receptacle for the fiber material 2, whereby the risk of pressure and compression of the filter medium is reduced by means of the embodiment according to the invention. The filter device according to the invention thus enables safe operation using a filter medium formed from fiber material 2 with extended use of the filter medium.
    LIST OF REFERENCES: 1 filter housing 2 fiber material 3 cover 4 separating plate 5 prechamber 6 filter chamber 7 base plate 8 suction opening 9 tube piece 10 connecting flange 11 passage openings 12 openings 13 spacers 14 inlet openings 15 closure device
    权利要求:
    Claims (3)
    [1]
    Claims 1. A filter device comprising a filter housing (1) for a filter medium formed of fibrous material (2), the filter housing (1) having an inlet for a filtering liquid and a filtered liquid inlet (8), characterized in that the filter housing (1) is subdivided into a suction-side pre-chamber (5) and an inlet-side filter chamber (6) by means of an inner partition plate (4) provided with through-openings (11) for the liquid, the pre-chamber (5) having a comparison with the suction opening (8) extended or one of the suction opening (8) to the partition plate (4) has widening cross-section, and the filter chamber (6) is filled with the formed of fibrous material (2) filter medium and having the inlet.
    [2]
    Filtering device according to claim 1, characterized in that the separating plate (4) forms a cover surface (11) provided with passages (11) for a tube (9) opening into the suction opening (8) and crossing the antechamber (5) ) and whose jacket surface has apertures (12) opening into the antechamber (5).
    [3]
    Filtering device according to claim 1 or 2, characterized in that the filter housing (1) is cylindrical and the separating plate (4) is designed as an insert disc which divides the filter housing (1) into a cylindrical preliminary chamber (5) and a cylindrical filtering chamber (6) in that the suction opening (8) is arranged in a bottom plate (7) of the filter housing (1) and the inlet is arranged on the side of the filter chamber (6) facing away from the bottom plate (7).
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    CA1300036C|1986-08-04|1992-05-05|Howden & Company Limited|Filtering apparatus and method|
    WO1996038387A1|1995-05-31|1996-12-05|Rockwool/Grodan B.V.|Method for biological cleaning of water, for the substrate culture of plants, and a filter and a filter unit therefor|
    CN203196403U|2013-03-30|2013-09-18|天津市普锐金工贸有限公司|Wool positioning structure for wool filter|
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    US9718004B2|2011-10-03|2017-08-01|Ishigaki Company Limited|Filter medium layer and filter device provided with same|CN112933682A|2021-04-01|2021-06-11|安徽农业大学|Equipment for treating sewage from micropterus salmoides cultivation|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50223/2015A|AT516276B1|2015-03-19|2015-03-19|filtering device|ATA50223/2015A| AT516276B1|2015-03-19|2015-03-19|filtering device|
    PCT/AT2016/050065| WO2016145471A1|2015-03-19|2016-03-17|Filter device|
    DE202016008410.1U| DE202016008410U1|2015-03-19|2016-03-17|filtering device|
    EP16720984.0A| EP3271040B1|2015-03-19|2016-03-17|Filtering device with separation plate|
    US15/559,316| US20180111849A1|2015-03-19|2016-03-17|Filter device|
    CN201680016558.6A| CN107405544A|2015-03-19|2016-03-17|Filter|
    CA2979291A| CA2979291A1|2015-03-19|2016-03-17|Filter device|
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