• 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:
    A drying cylinder adapted to receive steam therein includes a cylindrical cylinder jacket and two end covers. There is a flange connection between the jacket and the covers. The jacket has a rectangular cross-section flange. The covers have an L-shaped flange which receives the end flange of the cover. The covers are concave to the outside of the cylinder. The point of intersection of a curved line through the cover and of the axial center line of the axial arm of the cover flange lies at a distance from the outer face of the flange of the end cover that is at most about 60% of the axial length of the axial arm of that flange. There is thermal insulation on the axially exterior side of each cover.
    公开号:SU1195911A3
    申请号:SU833595998
    申请日:1983-05-25
    公开日:1985-11-30
    发明作者:Шиль Христиан；Шмид Карл；Цюрн Георг
    申请人:Й.М.Фойт Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to steam-heated drying cylinders, and is primarily intended for use in paper machines of the pulp and paper industry. The purpose of the invention is to increase reliability in operation by ensuring the tightness of the flange connection in the drying cylinder. FIG. 1 shows a cylinder, a longitudinal section; in fig. 2 — node I in FIG. 1. The drying cylinder contains a heated cylindrical body 1 with end caps 2. Inside the body 1 there is a hollow shaft 3, which sits on the axis 4 of rotation. On the cylinder there is a dried paper tape 5, having a width P. The end caps 2 on the outer side of the cylinder have heat insulation 6 (Fig. 1). Case 1 has end flanges 7 of rectangular cross section, the length w of each of which in the axial direction is at least equal to its thickness |) in the radial direction (Fig. 2). On the inner surface of the housing 1, circumferential ribs 8 are provided to improve heat transfer. Each end cap 2 has a portion 9 that is curved toward the inner cavity of the cylinder, passing into the mounting flange 10. with L-shaped cross section. The flange 10 has an axial flange t1 oriented to the center of the cylinder and a radial flange 12. The length A of the axial flange 11 is at least as large as the length of the radial flange 12. The axial flange 11 has an elongation 13, which projects above the outer end surface 14 of the connecting flange 10. The curvature on the curved part 9 of the roof 2 and its position relative to the connecting flange 10 is determined by the axial line 15. The axial line 15 intersects the axial line 16 of the axial flange 11 at a point that lies at a certain distance X from the outside rtsovoy of surface 14. The distance X is a maximum of 60% of the axial length of the flange 11. A preferred value for X is in the range from 25 to 50% of the length D. The degree of bending is characterized by the angle tu, which is measured between the axial lines 15 and 16 at the point S. The angle U) is approximately 50 °. The angle depends on the ratio between the largest diameter of the cylinder body 1 and the smallest diameter of the hollow shaft 3. This ratio is approximately 3: 1. The device works as follows. The canvas paper 5 width P is fed to the drying cylinder. The web contacts the surface of the cylindrical body 1 heated by steam. During the contacting process, the web is dried. The proposed design has a high reliability in operation due to the tightness of the flange connection. The stresses in the cylinder body, even at extremely high heat flux densities, remain within acceptable limits. According to the invention, significantly higher temperatures are permissible for a cylinder cylinder than in a known construction. High temperatures also occur when, during use, superheated steam on the outside of the cylinder cylinder is designed to save energy in order to save energy, in order to avoid a non-flexible heat sink. The use of the proposed construction ensures the safe use of heat spraying on the roof when using superheated steam.
    权利要求:
    Claims (2)
    [1]
    1. DRYING CYLINDER containing a steam-heated cylindrical body with end flanges of rectangular cross section, the length of each of which in the axial direction is at least equal to its thickness in the radial direction, and two end caps, each of which has a part curved towards the inside the cavity of the cylinder, passing into the connecting flange with an L-shaped cross-section, having an axial flange oriented to the center of the cylinder and a radial flange, and the length of the axial flange is at least that which is the same in size as the length of the radial flange, which is distinguished by the fact that, in order to increase operational reliability by ensuring the tightness of the flange connection, in the cross section of the connecting flange the distance from its outer end surface g to the intersection point of the middle lines ® of its axial flange and curved part is 25-60% of the length of the axial flange.
    [2]
    2. Cylinder pop. The eks on the outside of the cylinder are insulated. n ζ © sl ©
    1 95911
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1195911A3|1985-11-30|Drying cylinder
    US4844274A|1989-07-04|Pressure vessel having a connection stub with a thermal protector
    KR950005551B1|1995-05-25|Clamp body for fixing small-diameter pipe
    KR890014949A|1989-10-25|Hose Connector
    FI72580B|1987-02-27|EN VALS FOER BRUK VID FRAMSTAELLNING ELLER BEHANDLING AV BANMATERIAL.
    KR940008298A|1994-04-29|Transmission between the rotating body and the fixed body
    EP0185683B1|1989-07-26|Segmented seal for rotary equipment
    US4792164A|1988-12-20|Rotary joint for stationary siphon
    US4878299A|1989-11-07|Insulating apparatus for thermally insulating a dryer head
    EP0499597B1|1996-12-11|Steam and condensate coupling for a drying cylinder in a paper machine
    US4321759A|1982-03-30|Body bolt adapter for heated can rolls of high thermal efficiency
    CA1259357A|1989-09-12|Joint for a pipe provided with a flared end
    CA2264376A1|1999-10-10|Continuous drying apparatus for porous web
    US6227545B1|2001-05-08|Heatable and/or coolable cylinder
    US3946499A|1976-03-30|Heated dryer drum for paper machines and the like
    SE8505038L|1986-04-26|DEVICE FOR DISPOSING CONDENSATED FROM ONE OF OTHER HEATED DRY CYLINDER
    FI66447B|1984-06-29|MEDELST AONGA UPPVAERMD TORKCYLINDER
    CA1183347A|1985-03-05|Insulation blanket and band clamps
    CN212452089U|2021-02-02|Heat insulation sleeve device of steel Yankee dryer shaft head
    US4103816A|1978-08-01|Method and device for welding cylindrical elements to one another
    US4750275A|1988-06-14|Cylinder drying machine
    SU624974A1|1978-09-25|Paper-making machine drying roll
    SU1315542A1|1987-06-07|Drying roll of paper-making machine
    FI100201B|1997-10-15|Thermal roll jacket insulation arrangement and insulation piece
    WO2020077424A1|2020-04-23|Device for fixing turbulence-bar arches
    同族专利:
    公开号 | 公开日
    JPS58217185A|1983-12-17|
    GB8310600D0|1983-05-25|
    ATA109783A|1987-01-15|
    AT383837B|1987-08-25|
    GB2121511B|1985-09-04|
    SE8302250L|1983-11-27|
    SE8302250D0|1983-04-21|
    SE452035B|1987-11-09|
    JPH0260794B2|1990-12-18|
    GB2121511A|1983-12-21|
    US4520578A|1985-06-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1640855A|1926-09-23|1927-08-30|Shlick Leo|Drying cylinder|
    US2151049A|1937-07-01|1939-03-21|Aluminum Co Of America|Drying roll|
    US3099543A|1955-12-09|1963-07-30|Kimberly Clark Co|Rotary pressure vessel|
    JPS428485Y1|1964-07-25|1967-05-04|
    DE2361973A1|1973-12-13|1975-06-26|Voith Gmbh J M|HEATED DRYING CYLINDER FOR PAPER MACHINES OR DGL.|
    JPS5822825B2|1977-07-04|1983-05-11|Sharp Kk|
    DE2852731C2|1978-12-06|1981-02-05|J.M. Voith Gmbh, 7920 Heidenheim|Drying cylinders for paper machines|
    JPS6126397Y2|1980-01-09|1986-08-07|US4878299A|1987-07-10|1989-11-07|Beloit Corporation|Insulating apparatus for thermally insulating a dryer head|
    US5528838A|1994-03-25|1996-06-25|The Johnson Corporation|Insulated dryer drum|
    DE202007019227U1|2007-03-01|2011-05-05|Toscotec S.R.L.|Yankee cylinder for a papermaking machine|
    JP4512659B1|2009-02-10|2010-07-28|有限会社イクコズ|Snack puffing device and puffed snack confectionery manufacturing system|
    IT1395588B1|2009-09-09|2012-10-16|Toscotec S P A|"INSULATED MONOLUCID CYLINDER"|
    AT509053B1|2010-05-06|2011-06-15|Andritz Ag Maschf|YANKEY CYLINDER FOR DRYING A FIBROUS RAIL|
    ITFI20120018A1|2012-02-09|2013-08-10|Toscotec S P A|"INSULATION SYSTEM FOR A MONOLUCID CYLINDER"|
    ITFI20130241A1|2013-10-15|2015-04-16|Celli Paper S P A A|"PLANT COMPONENTS FOR THE PRODUCTION OF DAMP PAPER"|
    ITUB20151129A1|2015-05-27|2016-11-27|Celli Mauro|Method of producing an improved Yankee cylinder|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3219714|1982-05-26|
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