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)!

管道中的这些不同的补偿方式你知道吗?

Time:2019/2/27 11:21:50

热力管道的补偿方式有两种:自然补偿和补偿器补偿。

1、自然补偿就是利用管道本身自然弯曲所具有的弹性,来吸收管道的热变形。管道弹性,是指管道在应力作用下产生弹性变形,几何形状发生改变,应力消失后,又能恢复原状的能力。实践证明,当弯管角度大于30°时,能用作自然补偿,管子弯曲角度小于30°时,不能用作自然补偿。自然补偿的管道长度一般为15~25m,弯曲应力бbw不应超过80MPa。管道工程中常用的自然补偿有:L型补偿和Z型补偿。

2、补偿器补偿热力管道自然补偿不能满足,应在管路上加设不唱起来补偿管道的热变形量。 补偿器是设置在官道上吸收管道热胀冷缩和其他位移的元件。常用的不长期有方形补偿器,波纹管补偿器,套筒补偿器和球形补偿器。

由于波纹补偿器的广泛应用,在正常情况下,用波纹管材料应当符合下列条件:

(1)高弹性很 限,抗拉强度和疲劳强度,以确保波纹管工作。

(2)良好的可塑性,以方便波纹管成型加工,并通过随后的处理过程(加工硬化,热处理等),以获得足够的硬度和强度。

(3)良好的耐腐蚀性能,以满足波纹管的不同工作环境要求。

(4)良好的焊接性能,以满足在焊接工艺要求下生产波纹管。对于沟敷设热管网,当在低洼管道,雨或意外的污水浸泡波纹管补偿器时,应考虑比铁更耐腐蚀的材料,如选择镍合金,高镍合金等等。