• 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 invention relates to a power system and m. used to cool the exhaust steam. The invention allows to increase the heat transfer coefficient. Each heat exchanging tube of a condenser has a cross section (PS) elongated in the direction of flow and rounded at the ends, the length of which is several times greater than its width. The PS of the pipe may have a wedge-shaped shape. The edge of the wedge is directed toward the oncoming flow of cold air (B), while the side walls are straight, convex or repeatedly curved. In this case, the width of the PS in the front section (U) 4 of the pipe is less than / width of the PS in the rear of the U 5 pipe N and the side walls have at least two located one behind the other in the direction of movement B of the U 6, concave relative to its axial longitudinal plane through the convex zone 7. The ratio of the length and width of the PS pipe is in the internals from 8: 1 to 16: 1, and the length of the rib protruding beyond the 5th pipe is twice or three times the length of the edge in front of the front 4 pipe. In the middle part of the pipe, m. A separating wall 8 with holes 9 is installed, extending along the entire pipe. The holes 9 in the wall 8 are made so that the resulting condensate can flow into both cavities of the pipe. Exhaust1 steam enters the pipe, which is washed outside with a cold stream B. The installation of fins on the outer surface of the pipe and the permanently varying pipe PS increases the heat transfer coefficient due to the slower growth of the boundary layer thickness on the pipe surface. If the wall 8 is installed, excess steam formed in one of the cavities flows into the other through the opening 9, and the condensate formed is removed from the pipe. The heat exchange pipes and wall 8 can be filled from the whole sheet. 7 hp f-ly, 4 ill. CO JV SL CM
    公开号:SU1355140A3
    申请号:SU853902150
    申请日:1985-05-24
    公开日:1987-11-23
    发明作者:Пайкерт Пауль
    申请人:Геа Люфткюлергезельшафт Хаппель Гмбх Унд Ко. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a power system i, in particular, to devices for cooling exhaust steam.
    The aim of the invention is to increase the heat transfer coefficient.
    FIG. 1 shows schematically a heat exchanger tube of a condenser; a cross-section of a wedge shape in FIG. 2 - heat exchange pipe with a dividing wall, cross section; in fig. 3 is a section A-A in FIG. 2; FIG. 4 - heat exchange tube with sections concave inward relative to its axial longitudinal plane, cross section.
    The surface condenser contains heat exchange tubes 1 with transverse ribs 2 arranged on them parallel to the flow of cold air.
    Each heat exchange tube 1 has a cross section elongated in the direction of flow and rounded at the ends, the length of which is several times greater than its width.
    The cross section of the pipe 1 may have a wedge shape. The edge of the wedge is directed towards the oncoming flow of cold air, while the side walls 3 are filled with straight or convex outward. The side walls 3 can be made repeatedly bent. That will increase their rigidity,
    In this case, the width of the cross section in the front section 4 of the pipe 1 is smaller than the width of the cross section in the rear section 5 of the pipe 1, and the side walls 3 contain at least two spaced inward relative to their longitudinal longitudinal walls. planes of section 6, which are connected to each other through convex zone 7 outward.
    The ratio of the length and width of the cross section of the heat exchanger pipe 1 is in the range from 8: 1 to 16; 1, and the length of the rib 2) protruding beyond the rear section 5 of pipe 1 is two times more than the length of the edge 2 in front of the front section 4 of pipe 1. In the media A partition wall 8 with openings 9 can be installed thereto.
    in the wall 8, they are designed so that the resulting condensate can flow into both the cavities 10 and 11 of the pipe 1. In addition, excess steam from the cavity 11 can flow into the cavity 10.
    The air cooled surface condenser works as follows.
    The exhaust steam enters the heat exchange pipe 1, which is washed outside with a cold stream of air. The installation on the outer surface of the pipe. The ribs 2 parallel to the air flow and making the cross section of the pipe constantly changing in the direction of air flow increases the heat transfer coefficient.
    Q due to slower growth of thicknesses; boundary layer on the surface of the pipe 1. In case of installation of the separation wall 8, excess steam formed in one of the cavities 10
    5 and 11 flows into the other through the opening 9 provided in the wall 8, and the condensate formed, as in the absence of wall 8, is removed from the pipe 1.
    0 Heat exchange tubes 1, including the partition wall 8, are preferably made by bending flat metal sheets. At the same time, it is necessary to select the place of welding of sheets so that the free edge of the sheet performs the function of a dividing partition 8.
    权利要求:
    Claims (8)
    [1]
    Invention Formula
    d 1. Air cooled surface condenser containing heat exchange tubes with transverse ribs placed parallel to the cold air flow, stretched in the direction of the flow and rounded at the ends of the cross section, whose length in the stream is several times greater than its width, differing the fact that, in order to increase the heat transfer coefficient, the heat exchange tubes have a cross section constantly changing in the direction of the cold air flow, which is symmetrical relative to the longitudinal oskosti, the width of the front portion of the pipe cross-section smaller than the width of the cross-sectional rear portion
    pipes y. :
    five
    50
    [2]
    2. The condenser according to claim 1, wherein the cross-section of the heat exchange tubes is wedge-shaped.
    [3]
    3. The capacitor on the PP. 1 and 2, which is characterized by the fact that the side walls of the heat exchange tubes are made straight or convex outward along the entire length between the end sections.
    [4]
    4. The capacitor on the PP. 1 and 2, characterized in that the heat exchange tubes have at least two located in a direction of cold air that are concave inwardly relative to their axial longitudinal plane of the cross-sectional portion, which are connected to each other through a cross-sectional area outwardly curved
    [5]
    5. The capacitor on the PP. 1-4, in contrast to the fact that the ratio of the length and width of the cross section of the heat exchange tubes is in the range from 8: 1 to 16: 1.
    [6]
    6. The capacitor on the PP. 1-5, characterized in that the length of the ridge protruding beyond the rear section of the pipe is two to three times as long as the front section of the pipe.
    [7]
    7. The capacitor on the PP. 1-6, which is characterized by the fact that in the middle part of the heat exchanger tubes there are additionally arranged dividing walls
    with openings in the side wall region.
    .
    [8]
    8. The capacitor on the PP. 1-7, which is characterized by the fact that the heat exchange tubes, including separation walls, are made of a whole sheet.
    Fi.2
    Fig.Z
    Editor A.Vorovich
    Compiled by A.Golubenko
    Tehred L. Serdyukova Proofreader S.Shekmar
    Order 5721/58 Circulation 612 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1355140A3|1987-11-23|Air-cooled surface condenser
    US5623989A|1997-04-29|Finned tube heat exchanger
    US7882708B2|2011-02-08|Flat pipe-shaped heat exchanger
    SU1050584A3|1983-10-23|Heat exchanger
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    US8151871B2|2012-04-10|Heat exchanger
    KR20050084778A|2005-08-29|Heat exchanger
    JP2008101847A|2008-05-01|Air heat exchanger
    US3983932A|1976-10-05|Heat exchanger
    JP2517872Y2|1996-11-20|Heat exchanger
    KR100497847B1|2005-09-30|Evaporator
    KR960029756A|1996-08-17|Plate Fins for Finned Tube Heat Exchangers
    US4465128A|1984-08-14|Plate floor heat exchanger
    BR0117086B1|2010-03-09|heat exchanger.
    US20080148568A1|2008-06-26|Process for Making a Heat Exchanger
    WO2020244206A1|2020-12-10|Supercooling device for improving supercooling degree by means of baffling expansion, and air-conditioning unit
    JPH05332694A|1993-12-14|Heat exchanger
    JP2009113625A|2009-05-28|Evaporator
    KR20020045042A|2002-06-19|Tube for heat exchanger
    JP2001133076A|2001-05-18|Heat exchanger
    KR19980060341A|1998-10-07|Heat exchanger structure
    KR20030063980A|2003-07-31|Parallel flow type heat exchanger
    JP2001215096A|2001-08-10|Heat exchanger
    KR100393564B1|2003-08-09|Condenser for air-conditioner
    KR100491974B1|2005-09-02|evaporator
    同族专利:
    公开号 | 公开日
    ES295978Y|1987-12-16|
    ES295978U|1987-06-16|
    IN162655B|1988-06-25|
    DE3419734C2|1988-03-24|
    DE3419734A1|1985-11-28|
    US4715432A|1987-12-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE7212021U|1974-05-02|Kraftwerk Union Ag|Finned tube|
    DE445152C|1927-06-04|Rudolf Wagner Dr|Externally heated heating pipes for water tube boilers, superheaters, preheaters, etc. like|
    US1396633A|1920-04-12|1921-11-08|Henry N Jensen|Radiator for automobiles and the like|
    US2151540A|1935-06-19|1939-03-21|Varga Alexander|Heat exchanger and method of making same|
    US2078766A|1935-10-26|1937-04-27|Air Devices Corp|Unit heater|
    US2614816A|1947-02-24|1952-10-21|Engineering Controls Inc|Condenser|
    US2655181A|1949-09-14|1953-10-13|Mccord Corp|Tube construction|
    US3603384A|1969-04-08|1971-09-07|Modine Mfg Co|Expandable tube, and heat exchanger|
    FR2123195B1|1971-01-28|1973-12-07|Chausson Usines Sa|
    DE2144465B2|1971-09-06|1975-04-17|Geax-Luftkuehlergesellschaft Happel Gmbh & Co Kg, 4630 Bochum|Surface condenser cooled by an air stream|
    US3976126A|1973-12-26|1976-08-24|Gea Luftkuhlergesellschaft Happel Gmbh & Co. Kg|Air cooled surface condenser|
    US4168742A|1978-03-27|1979-09-25|Hudson Products Corporation|Tube bundle|US5056592A|1990-08-09|1991-10-15|Larinoff Michael W|In-tube fluid-channeling baffles for air-cooled vacuum steam condensers|
    DE4039292C2|1990-12-08|1993-07-01|Gea Luftkuehler Happel Gmbh|
    DE4039293C3|1990-12-08|1995-03-23|Gea Luftkuehler Happel Gmbh|Heat exchanger|
    FR2690513B1|1992-04-24|1994-07-29|Valeo Thermique Moteur Sa|ELONGATE SECTION TUBE FOR A HEAT EXCHANGER, PARTICULARLY A MOTOR VEHICLE, AND HEAT EXCHANGER COMPRISING SUCH TUBES.|
    DE19503766C2|1994-03-03|1996-05-15|Gea Luftkuehler Happel Gmbh|Finned tube heat exchanger|
    US6209202B1|1999-08-02|2001-04-03|Visteon Global Technologies, Inc.|Folded tube for a heat exchanger and method of making same|
    KR100382523B1|2000-12-01|2003-05-09|엘지전자 주식회사|a tube structure of a micro-multi channel heat exchanger|
    US7293602B2|2005-06-22|2007-11-13|Holtec International Inc.|Fin tube assembly for heat exchanger and method|
    US20100263840A1|2009-04-20|2010-10-21|Research Cottrell Dry Cooling, Inc.|Turbine exhaust condenser|
    US9453599B2|2013-06-21|2016-09-27|Ford Global Technologies, Llc|Bi-channel coolant tube having crossover channels to allow coolant interaction|
    FR3020670B1|2014-05-05|2019-03-22|Valeo Systemes Thermiques|FLAT TUBE FOR HEAT EXCHANGER|
    FR3037388B1|2015-06-12|2019-07-26|Valeo Systemes Thermiques|WING OF A HEAT EXCHANGER, IN PARTICULAR FOR A MOTOR VEHICLE, AND CORRESPONDING HEAT EXCHANGER|
    EP3608618B1|2017-04-04|2021-05-26|Mitsubishi Electric Corporation|Heat exchanger and refrigeration cycle device|
    US10801781B2|2018-10-17|2020-10-13|Hanon Systems|Compliant b-tube for radiator applications|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3419734A|DE3419734C2|1984-05-26|1984-05-26|
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