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    SWITCHING VALVE AND A REGENERATIVE THERMAL OXIDIZER INCLUDING THE SWITCHING VALVE
    4.
    发明公开
    SWITCHING VALVE AND A REGENERATIVE THERMAL OXIDIZER INCLUDING THE SWITCHING VALVE 有权
    控制阀和变速阀可再生热氧化

    公开(公告)号：EP1290392A1

    公开(公告)日：2003-03-12

    申请号：EP01925052.1

    申请日：2001-04-16

    申请人： MEGTEC SYSTEMS, INC.

    发明人： CASH, James, T.

    IPC分类号： F27D17/00

    CPC分类号： F23G7/068 ,  F23G2202/60 ,  F27D7/02 ,  F27D17/008 ,  F27D2017/007 ,  Y10T137/5689

    摘要： Switching valve and a regenerative thermal oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. The valve has a seal plate that defines two chambers, each chamber being a flow port that leads to one of two regenerative beds of the oxidizer. The valve also includes a switching flow distributor which provides alternate channeling of the inlet or outlet process gas to each half of the seal plate. The valve operates between two modes: a stationary mode and a valve movement mode. In the stationary mode, a tight gas seal is used to minimize or prevent process gas leakage. The gas seal also seals during valve movement.

    CONSOLIDATED POPPET VALVE ASSEMBLY
    7.
    发明公开
    CONSOLIDATED POPPET VALVE ASSEMBLY 有权
    稳定的提升阀装置

    公开(公告)号：EP1090257A2

    公开(公告)日：2001-04-11

    申请号：EP99924361.1

    申请日：1999-05-18

    申请人： MEGTEC SYSTEMS, INC.

    发明人： DE CLERC, J.

    IPC分类号： F23L15/02

    CPC分类号： F23G7/068 ,  Y10T137/5544

    摘要： Anti-leak two-port and three-port poppet valves for a regenerative thermal oxidizer in which a gas such as contaminated air is first passed through a hot heat-exchange bed and into a communicating high temperature oxidation (combustion) chamber or zone, and then through a relatively cool second heat exchange bed. The alternating of the heat transfer zones to provide matrix regeneration is accomplished via regenerative thermal oxidizer switching valves (10). In the preferred embodiment of the present invention, the switching valves are horizontal pneumatic poppet type valves (10) in a consolidated housing (21), the valve's switching frequency or cycle being a function of volumetric flow rate.

    BYPASS SYSTEM AND METHOD FOR REGENERATIVE THERMAL OXIDIZERS
    9.
    发明公开
    BYPASS SYSTEM AND METHOD FOR REGENERATIVE THERMAL OXIDIZERS 失效
    在蓄热式燃烧装置旁路系统及方法

    公开(公告)号：EP0914190A1

    公开(公告)日：1999-05-12

    申请号：EP97923554.0

    申请日：1997-05-06

    申请人： MEGTEC SYSTEMS, INC.

    发明人： BAYER, Craig, E. ,  BLAZEJEWSKI, Edward, G.

    IPC分类号： F01N3 ,  B01D53 ,  F23G7

    CPC分类号： F23G7/068 ,  B01D53/72 ,  Y02E20/12

    摘要： A regenerative thermal oxidizer (10) in which contaminated air is first passed through a hot heat exchange bed and into a communicating high temperature oxidation (combustion) chamber (3), and then through a relatively cool second heat exchange bed. The apparatus includes a number of internally insulated, ceramic filled heat recovery columns (2A, 2B) topped by an internally insulated combustion chamber (3). From the combustion chamber (3), the air flows vertically downward through another column containing heat exchange media, thereby storing heat in the media for use in a subsequent inlet cycle when the flow control valves reverse. Temperature is sensed within the bed of heat exchange media in order to monitor the temperature profile and control a bypass of hot combustion gases should the temperature exceed a predetermined level.

    FLUID CYLINDER RETRACTION LOCKING DEVICE
    10.
    发明授权
    FLUID CYLINDER RETRACTION LOCKING DEVICE 失效
    锁紧装置用于液压缸内

    公开(公告)号：EP0734507B1

    公开(公告)日：1999-03-31

    申请号：EP95938768.9

    申请日：1995-10-13

    申请人： MEGTEC SYSTEMS, INC.

    发明人： VOEGTLINE, Rodney

    IPC分类号： F26B13/20 ,  F26B21/00

    CPC分类号： F26B13/104 ,  F26B21/004

    摘要： Method and apparatus for eliminating the danger of inadvertent failure of a weight-bearing retraction system, such as a dryer hood retraction system. A load lifted using a fluid cylinder (20) can be easily locked in place against gravity by using a double rod ended cylinder (30), where the rod end (30") not exerting the force is permitted to move through a clearance hole while the load is being lifted, and is then blocked to prevent the return motion until the load is to be released.