• 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:
    In to-day plate heat exchangers, is it often necessary to change gaskets due to hard gaskets around the high temperature corner hole, even if the gaskets are still not fully worn-out. This invention meet the demand, for low maintenance cost, for low consumption of gaskets for plate heat exchangers, at a way, characterized in turning the plates, the plate pack, the gaskets, by 180 degrees, when it is open due to cleaning or inspections or before worn-out.
    公开号:DK201400494A1
    申请号:DK201400494
    申请日:2014-09-02
    公开日:2016-03-21
    发明作者:Jørgen Pedersen
    申请人:Jørgen Pedersen；
    IPC主号:
    专利说明:

    Method for prolonged lifetime of gaskets in plate heat exchangers.
    TECNICAL FIELD
    The invention relates to the field of heating systems in particular to plate heat exchangers.
    THE PURPOSE OF THE INVENTION
    Plate heat exchangers are widely used: In all ships, in all central heating installations, in the industries all over the world.
    The invention seeks to reduce the consumption of gaskets in old plate heat exchangers, by double the lifetime of plate heat exchanger gaskets.
    PRIOR ART
    The to-day plate heat exchanger producers’ service manuals for plate heat exchangers. Re-assembly, when replacing old plates, ensure that the plates are reinstalled in the correct sequence and orientation as stated on the PHE plate arrangement drawing.
    DISCLOSURE OF THE INVENTION
    The invention relates therefore to a method of controlling the temperature of the gaskets.
    A heat exchanger connected to two circuits of fluids, and wherein a first fluid coming from a primary circuit transmits heat energy to a second fluid coming from a secondary circuit.
    For an inlet temperature of 90 degrees Celsius and an outlet temperature of 60 degrees Celsius of the first fluid.
    And for an inlet temperature of 32 degrees Celsius of the second fluid and an outlet temperature of 60 degrees Celsius of the second fluid, ( counter-current flow).
    Knowing that the life of a rubber gasket depends on operating temperatures, an increase of the temperature by 10 degrees will approximately half the life of the gasket.
    This invention meet the demand, for low maintenance cost, for low consumption of gaskets for old plate heat exchangers, at a way, Characterized in turning the plates, the plate pack, the gaskets, by 180 degrees, upside down.
    By this not traditional way, will the high temperature end of the plates (90 degrees) be changed to the low temperature end of the plates (32 degrees).
    For clip-on gaskets, only the gaskets have to be turned.
    权利要求:
    Claims (1)
    [1] 1. Method for prolonged lifetime of gaskets for plate heat exchangers. In to-day plate heat exchangers, is it often necessary to change gaskets due to hard gaskets around the high temperature corner hole, even if the gaskets are still not fully worn-out. At a way, Characterized in turning the plates, the plate pack, the gaskets, by 180 degrees, upside down. By lifting the plates out of an open plate heat exchanger, out of the frame and turn the plates 180 degrees and then replace the plates.
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    同族专利:
    公开号 | 公开日
    DK178461B1|2016-03-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE301817B|1964-12-29|1968-06-24|Alfa Laval Ab|
    DD245247A1|1985-12-24|1987-04-29|Kyffhaeuserhuette Maschf|WAERMEUEBERTRAGUNGSPLATTEN|
    SE0103686D0|2001-11-06|2001-11-06|Alfa Laval Ab|Method of applying a coating material to a surface, gasket and heat exchange plate coated according to the method and plate heat exchanger with such gasket and heat exchange plate respectively|
    法律状态:
    2017-04-24| PBP| Patent lapsed|Effective date: 20160930 |
    优先权:
    申请号 | 申请日 | 专利标题
    DK201400494A|DK178461B1|2014-09-02|2014-09-02|Method for prolonged life of gaskets in plate heat exchangers|
    DK201400494|2014-09-02|DK201400494A| DK178461B1|2014-09-02|2014-09-02|Method for prolonged life of gaskets in plate heat exchangers|
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