ETHYLENE MONITORING AND CONTROL SYSTEM
    1.
    发明申请
    ETHYLENE MONITORING AND CONTROL SYSTEM 审中-公开
    乙烯监测和控制系统

    公开(公告)号:WO0023791A9

    公开(公告)日:2001-03-01

    申请号:PCT/US9924256

    申请日:1999-10-15

    CPC classification number: G01N21/76 Y10T436/206664

    Abstract: A system (10) that can accurately monitor and control low concentrations of ethylene gas includes a test chamber (26) configured to receive sample gas potentially containing an ethylene concentration and ozone, a detector (28) configured to receive light produced during a reaction between the ethylene and ozone and to produce signals related thereto, and a computer (14) connected to the detector to process the signals to determine therefrom a value of the concentration of ethylene (13) in the sample gas. The supply for the system can include a four way valve configured to receive pressurized gas at one input and a test chamber. A piston is journaled in the test chamber with a drive end disposed in a drive chamber and a reaction end defining with walls of the test chamber a variable volume reaction chamber. The drive end of the piston is pneumatically connected to two ports of the four way valve to provide motive force to the piston. A manifold is connected to the variable volume reaction chamber, and is configured to receive sample gasses from at least one of a plurality of ports connectable to degreening rooms and to supply the sample gas to the reactive chamber for reaction with ozone. The apparatus can be used to monitor and control the ethylene concentration in multiple degreening rooms.

    Abstract translation: 可以精确地监测和控制低浓度乙烯气体的系统(10)包括被配置为接收可能含有乙烯浓度和臭氧的样品气体的测试室(26),被配置为接收在反应期间产生的光的检测器(28) 乙烯和臭氧并产生与之相关的信号,以及连接到检测器的计算机(14),用于处理信号以确定样品气体中乙烯浓度(13)的值。 系统的供应可以包括配置成在一个输入端和测试室处接收加压气体的四通阀。 活塞在测试室中记录,驱动端设置在驱动室中,反应端用测试室的壁限定可变容积的反应室。 活塞的驱动端气动地连接到四通阀的两个端口,以向活塞提供动力。 歧管连接到可变体积反应室,并且被构造成从可连接到灭菌室的多个端口中的至少一个端口接收样品气体,并将样品气体供应到反应室以与臭氧反应。 该设备可用于监测和控制多个灭菌室中的乙烯浓度。

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