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    Treatment of material by ultra-violet irradiation
    56.
    发明授权
    Treatment of material by ultra-violet irradiation 失效
    用紫外线照射处理材料

    公开(公告)号：US3987306A

    公开(公告)日：1976-10-19

    申请号：US632121

    申请日：1975-11-14

    Applicant: David Preston Simpson

    Inventor： David Preston Simpson

    IPC: C02F1/32 ,  H01J13/50 ,  H01J61/28 ,  H01J61/82 ,  G21K5/00

    CPC classification number: H01J61/82 ,  C02F1/325 ,  H01J13/50 ,  H01J61/28 ,  H01J2893/0088

    Abstract: A method of producing U.V. radiation by effecting an electrical discharge such that at least a part of the discharge path is submerged in water. An apparatus for performing the above method comprises two electrodes spaced apart to form a discharge region, a discharge chamber containing the discharge region, means arranged to apply a high voltage across the electrodes, and means arranged to supply water to the discharge region such that at least a part of the electrical discharge is submerged in the water, at least a portion of the discharge chamber being transparent to U.V. radiation. Also, a method of treating a material comprising producing U.V. radiation as described above in a discharge chamber at least a portion of which is U.V. transparent, passing the material through a treatment chamber adjacent the transparent portion of the discharge chamber; and an apparatus for performing the method of treating a material. In some described embodiments the position of an electrode is adjusted in dependence upon the electrical characteristics of the discharge such as to maintain predetermined conditions. In one embodiment an electrode is mounted in the bottom of the discharge chamber which forms the other electrode; water covers the electrode and has a controlled circulatory motion such as to control the height of water over the electrode and thus the submerged discharge path. In another embodiment one of the electrodes is formed by a layer of mercury; an initiating discharge between a third electrode and the mercury or the other electrode to establish a degree of ionisation of the mercury in the vicinity of the discharge region. The main discharge excites the mercury vapour resulting in radiation at 254 nm.

    Abstract translation: 一种生产紫外线的方法 通过进行放电使得排放路径的至少一部分浸没在水中来进行辐射。 用于执行上述方法的装置包括间隔开以形成放电区域的两个电极，包含放电区域的放电室，布置成跨越电极施加高电压的装置，以及用于向放电区域供水的装置， 放电的至少一部分浸没在水中，放电室的至少一部分对UV是透明的 辐射。 另外，一种处理包括生产紫外线的材料的方法 在上述放电室中的至少一部分为紫外线的辐射。 使材料通过与排放室的透明部分相邻的处理室; 以及用于执行材料处理方法的装置。 在一些描述的实施例中，根据放电的电特性来调整电极的位置，以保持预定的条件。 在一个实施例中，电极安装在形成另一电极的放电室的底部; 水覆盖电极并具有受控的循环运动，以便控制电极上的水的高度，从而控制浸没的排出路径。 在另一个实施例中，电极之一由一层汞形成; 在第三电极和汞或另一电极之间引发放电，以在放电区域附近建立汞的离子化程度。 主放电激发汞蒸汽，导致254nm的辐射。

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