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    • 8. 发明授权
    • Freeze hole air bleeder system
    • 冷冻孔空气净化系统
    • US3660987A
    • 1972-05-09
    • US3660987D
    • 1970-06-22
    • POIRIER & MCLANE CORP
    • GAIL CHARLES PZANETTI UGO SERRAAMISANO ANDREW L
    • E02D3/115E21D1/12E21D1/14F25D17/02
    • E21D1/14E02D3/115E21D1/12Y10T137/3084
    • An arrangement for removing occluded air in a refrigerated liquid circulated through a plurality of freezing elements used in solidifying incompetent earth formations, which includes bleed lines extending from the freezing elements to manifolds positioned above the freezing elements, a valve in each bleed line controlling the flow to allow air and a minor amount of said liquid to be conducted therethrough, the manifold sloping downwardly to the inlet of a pump that returns the liquid from the manifold to the refrigeration plant, and float-operated vent devices connected to and positioned above the manifolds for collecting and discharging the air.
    • 一种用于去除冷凝液中的封闭空气的装置,该冷冻液体通过用于固化无能地层的多个冷冻元件循环,所述冷冻元件包括从冷冻元件延伸到位于冷冻元件上方的歧管的排出管线,每个排放管线中的阀控制流体 以允许空气和少量的所述液体被引导通过,所述歧管向下倾斜到泵的入口,所述泵的入口将液体从歧管返回到制冷设备,以及连接到并定位在歧管上方的浮动操作的通风装置 用于收集和排出空气。