The utility model relates to a repairable composite pipeline, belonging to the technical field of chemical pipeline equipment, which is used for repairing and manufacturing pipeline lining on the spot. The technical scheme is as follows: two flanges are welded at both ends of the outer pipe, the inner liner is a cylinder rolled by lead plate, the outer tube sleeve is outside the inner liner, the outer wall of the inner liner is in close contact with the inner wall of the outer tube, the two ends of the inner liner extend out the two ends of the outer tube, the two ends of the inner liner have vertical flanging, and the flanging works along the end face of the outer tube and the flange. Noodles. The expansion coefficient difference between the inner liner of the lead plate and the outer pipe is small, and the ductility of the lead plate is good, the influence of the thermal expansion and cold contraction is small, the burst of the lead plate is not easy to occur and the water strings are more durable than other composite pipes; when the inner liner of the lead plate is damaged, it can be brazed on the spot to repair the leakage, and can be reused after repair, and spare parts can be reduced without whole replacement. Storage greatly reduces the maintenance cost and improves the maintenance efficiency. The preparation process is simple and can be made on-site, which effectively promotes the development of production.
【技术实现步骤摘要】
一种可修复的复合管道
本技术涉及一种可以在现场对管道内衬进行修复的复合管道,属化工管道设备
技术介绍
化工企业在生产过程中常用到输送腐蚀性介质(如稀硫酸)的管道,为了提高管道的耐腐蚀能力,需要选择带有耐腐蚀内衬的复合管道,目前常用的复合管道有衬聚四氟乙烯管道、衬玻璃管道等。这些通用的复合管道有以下缺点:首先,由于外管和内衬两种材料膨胀系数差距较大,遇热胀冷缩时内衬材料容易爆裂串水,寿命短,一旦内衬损坏不能修复;其次,复合管道不能现场修复,必须整体更换,所以需要存放大量备件准备更换,增加了维修成本,同时由于不能现场修复,必须停工更换,也影响了生产的连续性;最后,这些复合管道制造工艺复杂,内衬材料特殊,只能在专业厂家制作定长尺寸,存在现场作业只能安装不能改动尺寸的缺陷,使企业的技术改造受到了制约,必须重新定制新的复合管道,大大增加了技术改造的成本。迄今为止,化工企业生产中使用的复合管道不能进行现场修复,必须整体更换的缺点没有得到有效的解决方法,不但增加了生产成本,也影响了生产的顺利进行,亟待予以解决。
技术实现思路
本技术所要解决的技术问题是提供一种可修复的复合管道及,这种复合管道可以在现场进行修复,大大提高了维修效率,并可以根据技改和工况尺寸进行现场制作,有效地促进了生产的发展,同时提高了内衬对热胀冷缩的承受力,不易发生内衬爆裂串水,提高了复合管使用寿命。解决上述技术问题的技术方案是:一种可修复的复合管道,它由外管、内衬和法兰组成,两个法兰分别焊接在外管的两端,内衬为铅板卷成的圆筒,内衬的外周直径与外管的内径相匹配,外管套在内衬的外部,内衬的外壁与外管的内 ...
【技术保护点】
1.一种可修复的复合管道,其特征在于:它由外管(1)、内衬(2)和法兰(3)组成,两个法兰(3)分别焊接在外管(1)的两端,内衬(2)为铅板卷成的圆筒,内衬(2)的外周直径与外管(1)的内径相匹配,外管(1)套在内衬(2)的外部,内衬(2)的外壁与外管(1)的内壁紧密接触,内衬(2)的两端伸出外管(1)的两端,内衬(2)的两端有垂直的翻边(4),翻边(4)沿着外管(1)的端面和法兰(3)工作面。
【技术特征摘要】
1.一种可修复的复合管道,其特征在于:它由外管(1)、内衬(2)和法兰(3)组成,两个法兰(3)分别焊接在外管(1)的两端,内衬(2)为铅板卷成的圆筒,内衬(2)的外周直径与外管(1)的内径相匹配,外管(1)套在内衬(2)的外部,内衬(2)的外壁与外管(1)的内壁紧密接触,内衬(2)的两...
【专利技术属性】
技术研发人员:成志刚,刘利刚,王尚智,李志勇,胡志轶,
申请(专利权)人:宣化钢铁集团有限责任公司,
类型:新型
国别省市:河北,13
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