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第 五 章 安 全 阀 结 构 1、阀结构发展 安全阀主要分为载荷式及弹簧式两种。弹簧阀的第一种型 式采用组合式盘形弹簧。如果载荷大,这种弹簧就不大合适。 第一种载荷式阀利用作用在中心的载荷而不用（木贡）桿。随着压力 及机组生产能力的提高,而转向（木贡）桿载荷式阀及带螺旋弹簧的 弹簧式阀。目前,采用（木贡）桿式阀,载荷被限定为600公斤（ 压强和阀面积之乘积）,因为力大时阀体变形并表现阀门气 密性不好。
Chapter V Safety Valve Structure 1, the development of valve structure Safety valve is divided into two types of load-type and spring. The first type of spring valve with a combination of disc springs. If the load is large, the spring is not suitable. The first load-type valve utilizes the center-loaded load without the needles. With the pressure and improve the production capacity of the unit, and turn (Mukun) pole load valve and spring valve with a coil spring. Currently, with (Mukun) pole valves, the load is limited to 600 kg (product of pressure and valve area) because the valve body deforms and shows poor valve tightness.