Thank you for your attention to ZhongYuan water supply equipment [Knowledge News Information] column! The summer solstice is one of the early confirmed solar terms in the 24 solar terms. In the seventh century BC, the ancestors used Tugui to measure the sun's shadow, and determined the summer solstice. Although the summer solstice indicates that the hot summer has arrived, it is not hot yet. The temperature will continue to rise for a period of time after the summer solstice. It will be hot in about twenty or thirty days. After the summer solstice, the ground is strongly heated and the air convection is vigorous, and thunderstorms often form from afternoon to evening. ZhongYuan remind you Construction of chemical and municipal pipelines in power plants industry customer friends: the weather is hot, pay attention to heatstroke prevention! Thank you for your attention to the Gongyi Zhongyuan Innovation Pipeline Equipment Co., Ltd website (http://ceshi5.66554433.cn)!

 怎样防止套筒补偿器生锈

Time:2019/5/16 14:15:48

 怎样防止套筒补偿器生锈

  套筒补偿器对氯离子含量无要求,适用于介质可周围环境氯离子超标的系统上。套筒补偿器在使用时疲劳寿命与管道相当,使用寿命大,滑动表面经特殊处理,在盐水、盐溶液等环境下耐腐蚀性能好,比奥氏体不锈钢高50倍以上。同时,多年后因磨损导致密封效果减弱时,可再次紧固法兰,增强密封性能,也可将螺栓松开,取下压圈,再装进一层或两层密封环,压紧压圈,继续使用。

  套筒补偿器分为单向型套筒补偿器和双向型套筒补偿器,双向型套筒补偿器的优点是不论介质从补偿器的哪一个方向流入,补偿器的滑动套筒总是自由滑动的,可以达到双向补偿的作用,这样能增大补偿量。直埋型套筒补偿器直接直于地下,安装时不设置维修井,工程造价低。

  金属制品生锈属于很常见的事情。只要是金属物品在一定的环境下一般都会生锈,但是也有比较不容易生锈的金属,虽然不容易生锈,但是在不同的环境下还是会生锈的。比如不锈钢材质在在干燥清洁空气中的时候,有着良好的抗腐蚀的能力,但是如果把它带到潮湿的环境中,这种环境中含有大量盐份,这时候补偿器很快会生锈了。

  在有污染的空气中(如含有大量硫化物、氧化碳、氧化氮的大气),遇冷凝水,形成硫酸、硝酸、醋酸液点,引起化学腐蚀.以上情况均可造成不锈钢表面防护膜的破坏引发锈蚀。套筒补偿器表面存积着含有其他金属元素的粉尘或异类金属颗粒的附着物,在潮湿的空气中,附着物与不锈钢间的冷凝水,将二者连成一个微电池,引发了电化学反应,保护膜受到破坏,称之谓电化学腐蚀。