• 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:
    The cleaning of a tubular filter bag (14), when a periodic reverse flow of purging air is directed into the outlet end of the filter bag, is significantly enhanced by providing a hollow diffuser tube (30) interiorly of the filter bag for diffusing and distributing the reverse flow of purging air throughout the filter bag. The hollow diffuser tube (30) extends longitudinally within the tubular supporting cage (26) of the filter bag (14) with one end of the diffuser tube communicating with the outlet end of the filter bag. The diffuser tube has perforations (33) for diffusing and distributing air throughout the filter bag when a periodic reverse flow of purging air is directed into the outlet end of the filter bag and into the diffuser tube.
    公开号:SU1037829A3
    申请号:SU802986455
    申请日:1980-09-17
    公开日:1983-08-23
    发明作者:Старлинг Джонсон(Младший) Аллен
    申请人:Johnson Allen Starling；
    IPC主号:
    专利说明:

    2. A device according to claim 1, characterized in that the length of the perforated pipe is at least about half the length of the tubular frame.
    3. A device according to Claims 1 and 2, characterized in that the upper end of the perforated pipe is provided with a flange, and the lower end is provided with an annular ring (washer.
    The invention relates to filtering devices that use bag filters to filter the gas stream. A filtering device for air purification is known, which contains a housing, fittings for gas inlet and outlet, open-end filtering sleeves and a tubular skeleton located inside the sleeve, a device for regenerating periodic backwashing with elements for dispersion and distribution of air tl. However, the cleaning operation in this type of filtering device is not effective. After the filter sleeves have been used for a certain period of time, they become heavily clogged with a particulate material. This leads to an undesirable increase in the pressure drop in the filter device and significantly reduces its performance. In some cases of filtration, the impossibility of effectively cleaning the filter sleeves of material consisting of particles leads to the need for their frequent replacement. In addition, the particulate material that is trapped by the filter sleeves prevents the air flow from passing, the filter device must be designed with a large number of filter sleeves and with a relatively small ratio of air to filter surface, so as to remain operable when the filter sleeves are strong. the state of particles becomes clogged with material. The presence of particulate material in the filter sleeves also causes abrasive wear of the sleeve and shortens their service life. The aim of the invention is to increase the cleaning efficiency and increase the service life of the filter sleeves. The goal is achieved by the fact that in the filtering device for air purification, comprising a housing, fittings bb; gas inlet and outlet, filter sleeves with an open end and a tubular frame located inside the sleeve, a device for regenerating periodic return Q by blowing with elements for dispersing and distributing air, the latter made in the form of a perforated tube placed inside the filter sleeve and connected to its open the end. The length of the perforated pipe is at least about half the length of the tubular frame. In addition, the upper end of the perforated pipe is provided with a flange, and the lower one - with an annular washer. The perforated tube is designed to diffuse and distribute air throughout the filter bag when the periodic return flow of cleaning air is directed to the outlet end of the filter bag. A more even distribution of the cleaning air results in a more efficient cleaning of the filter bag, reducing excessive bending of the filter bag and its abrasive wear. Because of this, the proposed perforated tube provides a significant increase in the efficiency of the filtering device and a significant increase in its service life. Figure 1 shows the filtering device, general view, section f in figure 2 - a perforated tube, a side view; fig.Z - frame, side view; figure 4 is a filter sleeve, side view; FIG. 3 shows various parts of the filtering device in a partially assembled state; Fig. 6 shows the assembled parts of the device, side view (partially with a cut; Fig. 7 shows a section A-A in Fig. 6. The filtering device includes a housing 1, which is divided by a horizontal partition 2 into the lower filter chamber 3 and the upper clean air chamber 4, filter sleeves 5 installed in a vertical position and secured with upper open ends in nepeioderka 2, inlet 6 and outlet 7 of the nozzle, air compressor 8, valve-pan 9 on line 10 compressed, valve 11, configured to displacements from a position, whether solid each, shown by dashed lines, by means of an actuator 12, an auger conveyor 13 for removing the filtered material. Each filter sleeve 5 is manufactured with a closed lower end and is provided with a tubular frame 14 having an openly tight structure with a flange 15 at its upper end to be fixed in a horizontal partition, and the lower end is closed by an end plate 16. The perforated tube 16 has dimensions that allow it to slide freely inside the tubular frame 14, its upper end is provided with a flange 18 for installing When the tubular tangent car 14 and the lower end is provided with a number tsevoy washer 19 for centering. relative to the tubular frame. The diameter of the perforated pipe 17 is selected as much as possible, so as to make the cross-sectional area of the distribution pipe maximum, leaving a sufficient gap between its walls and the tubular frame 14 to allow the perforated pipe to slip inside the tubular frame and so that the perforated pipe is essentially , out of contact with it and the filter sleeve. The perforated tube 17 can be made from any material that can withstand the conditions under which the filter device operates. For example, in a filtering system exposed to high-temperature flue gases that may have corrective properties, the preferred material is Yom is stainless steel. However, in other less severe applications, another material may be appropriate. The length of the perforated tube is at least about half the length of the tubular frame to allow longitudinal sliding within the tubular frame. The perforated tube has a flange 18 at its upper end for installation inside the tubular. frame and ring washer 19 for centering inside it. In the proposed embodiment, the perforated tube has a circular cross section. However, it can be made with a different cross-sectional shape, such as, for example, an oval, to fit inside a tubular frame with other cross-sectional shapes. The holes 20 on the perforated tube serve to diffuse and distribute air throughout the filter bag when it is periodic. The reverse flow of clear air is directed to the outlet end of the filter and to the perforated tube. The operation of the filtering device is as follows. The contaminated air inlet fitting 6 enters the filter chamber 3, material particles are deposited on the outer surface of the sleeves 5, the filtered air passes upward through the upper ends of the sleeve into the upper clean air chamber 4, from where it is cleaned through the outlet fitting 7. To regenerate the filter sleeves The air from the air compressor 8 is directed to the clean air chamber 4 when the valve 9 is momentarily opened on the compressed air line 10. At that. At the same time, the valve 11 is moved from the position shown by solid lines to the position shown by dashed lines by means of the actuator 12 and blocks the output fitting 7, i.e. the compressed air is directed in the opposite direction to the upper ends of the filter sleeves. The material that is removed is collected in the lower part of the housing 1 and is conveyed by the screw conveyor 13. Tests have shown that 30% by weight of the material consisting of particles is removed from the filtering sleeve as a result of the installation of the distribution pipe. In addition, as a result of improved cleaning, the volume of air- that can pass through the filter at a given pressure drop, increases 2-3 times. A more even distribution of the cleaning air as a result of the installation of a perforated pipe eliminates excessive and bending of the filter bag and thereby increases its service life. In addition, the air flow velocity along the internal surface of the filtering sleeve near the output end of the filter contributes to wear of the filter sleeve. The speed of the air that passes through the filter sleeve is relatively low, the speed of the air inside the filter sleeve near the outlet end is significantly higher due to the reduced cross-sectional area for flow compared to the total surface area of the filter sleeve. Air at relatively high speeds, along with dust particles that pass through the filter bag and are in the air, usually pass through the inside surface of the filter bag and cause additional wear and abrasion of this surface. Installing the proposed perforated tube inside the filter sleeve serves to separate or isolate the inner surface from this high-speed air, thereby increasing the service life of the filter sleeve.
    The perforated pipe has a length slightly shorter than the total length of the tubular frame, and the lower end of the perforated pipe is open. It is not necessary for the distributor tube 17 to be stretched to the full length of the tubular frame, although this may be so, if necessary. The perforated pipe should be at least about half the total length of the tubular frame, or at least two-thirds to three-fourths of its total length. However, it has been determined that lengths that are significantly shorter than the indicated lengths provide very good results compared to data obtained in accordance with h with known devices where a perforated tube is not used.
    m
    nineteen
    Fig.Z FtfA
    F "g.2
    权利要求:
    Claims (3)
    [1]
    1. FILTER WORK DEVICE for air purification, comprising a housing, fittings for gas inlet and outlet, filter bags with open con. a device and a tubular frame located inside the sleeve, a device for the regeneration of periodic backflushing with elements for dispersing and distributing air, characterized in that, in order to improve cleaning efficiency and increase the service life of filter bags, elements for dispersing and distributing purge air are made in the form perforated pipe. placed inside the filter sleeve and connected to its open end.
    4Sh.1
    [2]
    2. The device according to claim 1, characterized in that the length of the perforated pipe is at least about half the length of the tubular frame.
    [3]
    3. The device according to claims 1 and 2, characterized in that the upper end of the perforated pipe is provided with a flange, and the lower end is an annular washer.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1037829A3|1983-08-23|Filtering device
    SU1367842A3|1988-01-15|Filtering device
    US4336035A|1982-06-22|Dust collector and filter bags therefor
    US4280826A|1981-07-28|Bag-type filter apparatus with high pressure air jet cleaning
    JP2684199B2|1997-12-03|Filtration method
    US3739557A|1973-06-19|Bag filter arrangement
    US3256679A|1966-06-21|Apparatus for dust collection
    US4324571A|1982-04-13|Bag-type filter apparatus with air diffuser having extended bag support
    US4328098A|1982-05-04|Filter apparatus
    US4909813A|1990-03-20|Jet pulse extender
    US3861893A|1975-01-21|Filter device with scavenger system
    US5571299A|1996-11-05|Dust collector
    RU2448758C2|2012-04-27|Gas cleaning bag filter with short-pulse blowing
    FI76706C|1988-12-12|METHODS AND APPARATUS FOR THE EFFECTIVENESS OF THE EFFECTIVENESS HOS INTERNT SAMLANDE FILTERPAOSAR.
    SU1139477A1|1985-02-15|Bag filter for gas cleaning
    US20210283543A1|2021-09-16|Effluent Processing Apparatus and Method for a Vehicle Air Brake Charging System
    RU2283685C1|2006-09-20|Filter
    JPH09234324A|1997-09-09|Dust removing apparatus
    SU1581350A1|1990-07-30|Bag filter
    RU2179879C1|2002-02-27|Bag-type filter
    SU1194466A1|1985-11-30|Apparatus for cleaning gas from dispersed particles
    SU1340801A1|1987-09-30|Self-cleaning cartridge filter
    SU607584A1|1978-05-25|Bag filter
    SU373424A1|1973-03-12|YESESOYUZNAK? j5rt '; '•',; '> &' • - '. = •• .lhu-Mi. * Hi; - •
    SU1321441A1|1987-07-07|Cartridge filter
    同族专利:
    公开号 | 公开日
    FI75097C|1988-05-09|
    HK94787A|1987-12-18|
    ES8106090A1|1981-08-01|
    AU531746B2|1983-09-01|
    FI802900A|1981-03-19|
    IN152765B|1984-03-31|
    AT18013T|1986-03-15|
    DD152725A5|1981-12-09|
    CA1151081A|1983-08-02|
    AR220869A1|1980-11-28|
    BR8005958A|1981-03-31|
    KR830003920A|1983-06-30|
    FI75097B|1988-01-29|
    AU6248880A|1981-04-09|
    IL60940D0|1980-10-26|
    DK154006C|1989-02-20|
    ES495526A0|1981-08-01|
    IL60940A|1983-11-30|
    US4231770A|1980-11-04|
    DK393980A|1981-03-19|
    SG64787G|1988-09-30|
    EP0026087B1|1986-02-19|
    DE3071432D1|1986-03-27|
    NO802755L|1981-03-19|
    KR830001385B1|1983-07-21|
    DK154006B|1988-10-03|
    JPS632643B2|1988-01-20|
    ZA805355B|1981-10-28|
    NZ194746A|1983-09-30|
    MX6945E|1986-12-19|
    NO150865C|1985-01-09|
    EP0026087A2|1981-04-01|
    EP0026087A3|1982-01-27|
    NO150865B|1984-09-24|
    JPS5653719A|1981-05-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE152017C|1900-01-01|
    US2828017A|1954-03-16|1958-03-25|Helmer A Ronningen|Automatic backwashing filter|
    US2731107A|1954-05-07|1956-01-17|Jr Henry J Hersey|Filter|
    GB909345A|1960-05-18|1962-10-31|Simon Ltd Henry|Improvements in or relating to air filters|
    US3594992A|1969-04-01|1971-07-27|Air Preheater|Cleaning arrangement for bag filter|
    SU453176A1|1971-07-27|1974-12-15|А. Д. Мальгин , В. Н. Саксин|METHOD OF REGENERATION OF FILTER CARDING FILES|
    CA991561A|1972-06-14|1976-06-22|John F. Phillippi|Method and apparatus for bag collection of dirt|
    SU443674A1|1973-01-04|1974-09-25|Предприятие П/Я А-7229|Gas filter|
    JPS5074260A|1973-11-06|1975-06-18|
    JPS5175673U|1974-12-11|1976-06-14|
    US4097255A|1977-04-04|1978-06-27|Samolis Alfonso A|Gas filter cleaning apparatus|
    SE410086B|1977-08-23|1979-09-24|Alfa Laval Ab|TUBE FILTER DEVICE WITH FLOW DISTRIBUTION ELEMENT|US4280826A|1979-09-18|1981-07-28|Staclean Diffuser Company|Bag-type filter apparatus with high pressure air jet cleaning|
    US4297115A|1979-09-18|1981-10-27|Staclean Diffuser Company|Bag-type filter with air diffuser tubes of helical construction|
    US4289511A|1979-09-18|1981-09-15|Johnson Jr Allen S|Bag-type filter apparatus with venturi-supported air diffuser|
    US4357151A|1981-02-25|1982-11-02|American Precision Industries Inc.|Electrostatically augmented cartridge type dust collector and method|
    US4632680A|1985-10-28|1986-12-30|Carter-Day Co.|Planar sided air shaping inserts for filter bags|
    US4861353A|1987-12-07|1989-08-29|E. I. Du Pont De Nemours And Company|Filter element and assembly|
    JPH04150910A|1990-10-12|1992-05-25|Sanko Seisakusho:Kk|Protecting device for cylindrical filter body in bag filter dust collector|
    DE59206978D1|1991-04-30|1996-10-02|Ackeren Paul Dr Van|Bag filter|
    DE4123257C2|1991-07-13|1993-04-29|L. & C. Steinmueller Gmbh, 5270 Gummersbach, De|
    US5202021A|1991-08-26|1993-04-13|Hosokawa Micron International Inc.|Integrated molded collar, filter bag, cage and locking ring assembly for baghouses|
    US5562251A|1993-09-03|1996-10-08|Goyen Controls & Co. Pty. Limited|Gas nozzle for bag house cleaning systems|
    US5800580A|1993-10-27|1998-09-01|Feldt; Klas-Goran|Support cage for glass fiber bag filter for gas filtration|
    US6004366A|1994-11-23|1999-12-21|Donaldson Company, Inc.|Reverse flow air filter arrangement and method|
    US5910247A|1997-09-08|1999-06-08|Outterside; W. Mark|Two element filter bag|
    KR100289640B1|1999-04-16|2001-05-02|장인순|The high efficiency dust collection apparatus combined suction fan, straight cyclone, general cyclone and candle type filter|
    MXPA04004561A|2001-11-13|2004-09-10|Bhp Billiton Innovation Pty|A human matrix metalloproteinase and uses therefor.|
    US7648563B2|2005-10-21|2010-01-19|General Electric Company|Methods and apparatus for manufacturing and assembling a baghouse bag filter tensioning assembly|
    EP2058044B1|2006-11-06|2011-01-05|Mitsubishi Heavy Industries, Ltd.|Dust collector|
    EP2678091A1|2011-02-25|2014-01-01|Donaldson Company, Inc.|Air filter cartridges; components thereof; and, air cleaner assemblies|
    NL2011597C2|2013-10-11|2015-04-14|Pwn Technologies B V|Filter device having a diverging cleaning duct with internal partitions.|
    EP3060327B1|2013-10-24|2020-01-01|Donaldson Company, Inc.|Pleated filter element|
    EP3286135B1|2015-04-21|2021-11-24|Donaldson Company, Inc.|Filter assembly and methods|
    EA037946B1|2016-03-02|2021-06-10|Дональдсон Компани, Инк.|Filter element having inner support and methods|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/076,605|US4231770A|1979-09-18|1979-09-18|Bag-type filter apparatus with internal air diffuser|
    [返回顶部]