5.
    发明专利
    未知

    公开(公告)号:DE1901909C3

    公开(公告)日:1981-06-11

    申请号:DE1901909

    申请日:1969-01-15

    Abstract: 1,241,868. Valves. CONTINENTAL ENG. INGENIEURSBUREAU VOOR DE PROCESINDUSTRIE N.V. 15 Jan., 1969 [16 Jan., 1968], No. 2343/69. Heading F2V. [Also in Division B1] In apparatus for mixing a gas or liquid to a fluid flowing in a conduit 1 having a conically widening constriction 4 to induce turbulence, there is at the constriction a radial annular slot between members 5, 9 to which the additive supply pipe 7 is connected through passages 6 and which discharges into conduit 1 so that the additive enters the conduit perpendicularly to the flow therein. In the slot is a resilient ring 11 which sets as a non-return valve member for the supply of additive and which in the embodiment shown is loaded by the spring 10. In another embodiment (Fig. 2, not shown) the spring 10 is replaced by a resilient hollow annular member (17) to which compressed air can be supplied, forming a pneumatic spring to retain the member 11 closed or to regulate the width of the outflow slot. Alternatively the member (17) can act as valve member, the ring 11 being omitted. The apparatus is suitable for mixing e.g. ammonia or other highly soluble gas with water.

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