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    • 7. 发明专利
    • Freezing preventing valve body in various valves
    • 在各种阀门中冷冻预防阀门体
    • JPS6188082A
    • 1986-05-06
    • JP20890184
    • 1984-10-03
    • Morihiro Katayama
    • KATAYAMA MORIHIRO
    • F16K1/36F16K17/38F16K31/68F17D1/05
    • F16K17/38F17D1/05
    • PURPOSE:To prevent freezing of a pipe during winter season, by a method wherein, when the temperature of the open air is decreased, water is caused to flow by making it automatically leak in keeping a condition to close a valve. CONSTITUTION:A chamber 4, sealed with liquid and gas, is formed in a valve body, and a cylinder hole 5 communicated with the chamber 4 is provided. A piston 8 is inserted into the cylinder hole 5, and the piston 8 is pressurized in the direction of liquid and gas through the force of a spring 9. Leak holes 6, communicated with the flow-in side and the flow-out side in a valve box and mutually closed by a valve body, are open to the valve body, the communication is shut off by the piston 8. This constitution, when the temperature of the open air is decreased, causes movement of the piston 8 through contraction of the sealed liquid and gas, causes the water leak holes 6 to be communicated with each other, and causes water in the flow-in chamber in the valve box to flow in small quantities in a flow-out chamber, resulting in the possibility to prevent freezing of a pipe.
    • 目的:为了防止冬季冷冻管道,采用一种方法,当露天温度降低时,通过使水自动泄漏,保持关闭阀的状态,使水流动。 构成:在阀体中形成有用液体和气体密封的室4,并且设置有与室4连通的气缸孔5。 活塞8插入缸孔5中,活塞8通过弹簧9的力沿液体和气体的方向被加压。泄漏孔6与流入侧和流出侧连通 通过阀体相互闭合的阀箱对阀体开放,通过活塞8切断连通。这种结构当露天温度降低时,通过收缩活塞8的运动 密封的液体和气体导致漏水孔6彼此连通,并使得阀箱中的流入室中的水在流出室中少量流动,导致防止 冻结管道。