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    Methods of lining the internal surface of a pipe
    2.
    发明公开
    Methods of lining the internal surface of a pipe 失效
    Verfahren zur Innenbeschichtung eines Rohres

    公开(公告)号：EP0715115A1

    公开(公告)日：1996-06-05

    申请号：EP95308218.7

    申请日：1995-11-15

    申请人： TOKYO GAS CO., LTD.

    发明人： Toyoda, Shigeru ,  Yagi, Shuichi, No.503, 3rd Ekureru Myorenji Bldg., ,  Itagaki, Masaaki

    IPC分类号： F16L55/162

    CPC分类号： F16L55/164 ,  F16L55/1645

    摘要： There are provided methods of lining the internal surface of a pipe (7), which includes first inserting two lining pigs (3) into the pipe (7) and then introducing a batch of resin thereinto, or inserting one lining pig between two batches of a resin, or first inserting a lining pig and then inserting two batches of a resin with another lining pig therebetween, or first introducing a lining pig made of a soft material capable of deforming so as to pass through a narrow-passing section and then introducing a batch of a resin into the pipe, causing the resin to move forward until the front end of the resin reaches an inner end of the pipe (7), and sucking the resin back from the inner end so as to line the internal surface of the pipe with the resin. There are also provided improved liquid blocking pigs (6) for use in pipe lining treatment, each of such pigs (6) comprises a spherical body made of a soft resilient material and a least one flexible liquid barrier diaphragm interposed in the spherical body.

    摘要翻译： 提供了一种衬套管（7）的内表面的方法，其包括首先将两个衬里猪（3）插入管（7）中，然后向其中引入一批树脂，或者在两批 树脂，或者首先插入衬里猪，然后将两批树脂插入其中的另一衬里猪，或者首先引入由能够变形的软质材料制成的衬里猪，以穿过窄通过部分，然后引入 将一批树脂注入管中，使树脂向前移动，直到树脂的前端到达管（7）的内端，并从内端向后抽吸树脂，以使树脂的内表面 管子用树脂。 还提供了用于管衬处理的改进的液体阻塞猪（6），每个这样的猪（6）包括由柔性弹性材料制成的球体和插入球体的至少一个柔性液体屏障隔膜。