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    • 9. 发明专利
    • Polyethylene sleeve for preventing pipe erosion
    • 用于防止管道腐蚀的聚乙烯套管
    • JP2014185715A
    • 2014-10-02
    • JP2013061710
    • 2013-03-25
    • Kurimoto Ltd株式会社栗本鐵工所
    • YAO MASAHIKOOTSU HIDEKINAKAMOTO KOJIYAMADA YOSHINOBUNISHIHARA YOSHIKAZUSHISHIDO RYODEGUCHI TAKAAKI
    • F16L58/04
    • PROBLEM TO BE SOLVED: To prevent breakage of a polyethylene sleeve and erosion of a pipe caused by water intrusion from an end.SOLUTION: In a polyethylene sleeve 11 for preventing pipe erosion covered on an outer periphery of a pipe 1 buried underground, a water-absorbing swelling material 22 is provided on an inner peripheral side of a basic sleeve material 21 constituting an outer layer, and the water-absorbing swelling material 22 is sandwiched between the basic sleeve 21 and the pipe 1. The water-absorbing swelling material 22 on the inner peripheral side of the basic sleeve material 21 functions as a seal material, and thus, water intrusion from an end of the polyethylene sleeve 11 can be prevented. Even when breakage occurs in the basic sleeve material 21, the water-absorbing swelling material 22 swells by intrusion of groundwater, and functions as a self-repair material for closing the breakage, and therefore, water shielding performance can be maintained, and erosion of the pipe 1 can be prevented.
    • 要解决的问题:防止聚乙烯套管断裂和水从一端流入而导致的管道侵蚀。解决方案:在用于防止管道侵蚀的聚乙烯套筒11中,该管道侵蚀被埋在地下的管1的外周上, 吸收膨胀材料22设置在构成外层的基础套筒材料21的内周侧,并且吸水膨胀材料22夹在基本套筒21和管1之间。吸水膨胀材料22 在基本套筒材料21的内周侧上作为密封材料起作用,从而能够防止从聚乙烯套筒11的端部入水。 即使在基本套筒材料21中发生破裂的情况下,吸水膨胀材料22通过地下水的侵入而膨胀,并且作为闭合断裂的自修复材料发挥功能,因此可以保持防水性能,并且 可以防止管1。
    • 10. 发明专利
    • Drain piping
    • 排水管道
    • JP2010077667A
    • 2010-04-08
    • JP2008246678
    • 2008-09-25
    • Maruichi Corp丸一株式会社
    • ITO YOSHIHIRO
    • E03C1/284E03C1/12F16L58/04
    • PROBLEM TO BE SOLVED: To provide drain piping in a drain apparatus, for can preventing pipe clogging caused by the accumulation of trash and dust in the drain piping.
      SOLUTION: In the drain piping for discharging the drainage generated by the drain apparatus to the sewer side, lubricating coating which reduces the coefficient of friction between the drainage and the inner surface of the drain piping is applied to the inner surface of the drain piping made of resign or metal. Also, a drain trap which prevents the backflow of bad smell or noxious insects is provided to the interior of the drain piping, and the drain trap is a sealing-water type trap, which prevents the backflow of bad smell or noxious insects by providing a drainage accumulation part called sealing water in the middle of the piping. The lubricating coating is made water-repellent coating.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:在排水装置中提供排水管道,以防止排水管道中垃圾和灰尘积聚引起的管堵塞。 解决方案:在用于将由排水装置产生的排水排放到下水道侧的排水管道中,将排水管和排水管道的内表面之间的摩擦系数降低的润滑涂层施加到 排水管道由辞职或金属制成。 另外,在排水管道的内部设置防止臭气或有害昆虫回流的排水阱,排水管是密封水型的捕集器,通过提供一种防止臭气或有害昆虫的回流, 排水积水部分称为管道中间的密封水。 润滑涂层是防水涂层。 (C)2010,JPO&INPIT