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    • 4. 发明公开
    • Improvements relating to clean water treatment
    • Behandlung von sauberem Wasser。
    • EP0161912A2
    • 1985-11-21
    • EP85303286.0
    • 1985-05-09
    • The Thames Water Authority
    • Weeks, Kenneth George
    • B01D23/16B01D23/24
    • B01D24/24B01D24/4631B01D24/4694B01D24/4846B01D2201/10
    • @ A method of operating a large scale slow sand filter in a clean water treatment plant is described in which the surface of the sand bed (3) is covered by a series of overlapping thin, flexible, water permeable sheets (8) to form a protective filter layer (7) so that the Schmutzdecke forms on the protective layer (7) instead of on the surface of the sand. When the Schmutzdecke is to be removed, this is done either by removing it from the protective layer (7) in situ, for example by suction dredging, or by removing the individual sheets (8) of the protective layer together with the Schmutzdecke, from the filter. A clean protective filter layer is then formed on the surface of the filter bed for continued operation of the filter. If desired, several protective filter layers (7) may be provided one on top of the other so that it becomes unnecessary to instal a clean filter layer (7) each time one is removed in order to remove the Schmutzdecke formed during the previous operation run of the filter.
    • 描述了在清洁水处理设备中操作大型慢砂过滤器的方法,其中砂床(3)的表面被一系列重叠的薄,柔性,水可渗透的片(8)覆盖以形成保护 过滤层(7),使得Schmutzdecke形成在保护层(7)上而不是在砂的表面上。 当要去除Schmutzdecke时,可以通过例如通过抽吸疏浚从保护层(7)上将其去除,或者通过从Schmutzdecke中去除保护层的单个片材(8),从Schmutzdecke 过滤器。 然后在过滤床的表面上形成干净的保护性过滤层,以便继续操作过滤器。 如果需要,可以将多个保护性过滤层(7)一个放置在另一个之上,使得每次移除时不需要安装干净的过滤层(7),以便去除在先前的操作过程中形成的Schmutzdecke 的过滤器。
    • 5. 发明公开
    • A sewer cleaning shoe
    • 清洗系统下水道。
    • EP0042243A2
    • 1981-12-23
    • EP81302538.4
    • 1981-06-08
    • The Thames Water Authority
    • Crane, Norman William
    • E03F9/00
    • E03F9/00
    • A sewer cleaning shoe for use in removing the detritus and sedimentary matter that accumulates in the invert of sewers comprises a partly-cylindrical framework (1, 11, 14, 19) which fits in the invert of a sewer, a transverse barrier (2, 5, 23) which is connected to the framework and which, in use, substantially fills the lower part of a sewer but stops short of the top of the sewer to form a dam extending across the sewer, and an orifice (6, 18) through the transverse barrier adjacent its base through which, in use, a part of the effluent carried by the sewer is jetted to scour the detritus and sedimentary matter from the invert of the sewer. The transverse barrier stops short of the top of the sewer and provides a weir over which the remainder of the effluent flow takes place. The jet of effluent from the orifice scours and loosens the detritus and concretions that have accumulated in the invert of the sewer, and then the loosened material is entrained by the cascade of effluent flowing over the weir at the top of the transverse barrier. The entrained detritus and sedimentary matter is then carried forward with the effluent towards the downstream end of the sewer.
    • 7. 发明公开
    • Pipe renovation system
    • 罗尔 - Erneuerungssystem。
    • EP0290184A1
    • 1988-11-09
    • EP88303749.1
    • 1988-04-26
    • ANGUS FIRE ARMOUR LIMITEDTHE THAMES WATER AUTHORITY
    • Rodriguez, AlanRose, John ArthurWaller, Clifford BrianDoyle, Anthony William
    • F16L58/10F16L55/16F16L23/02F16L41/06
    • F16L55/1654F16L55/179
    • A method of lining an existing pipe (11) comprises pulling through it a collapsible, flexible, lay-flat liner (10) having an innermost layer 13 of impervious, elastomeric material which is compatible with the fluid to be carried by the pipe, a textile reinforcing intermediate layer, (14), and an external protective layer (15) of elastomeric material, the said liner having an external peripheral length slightly less than the internal peripheral length of the pipe (11) and being such that flow of said fluid through the liner (10) after the installation thereof expands the liner into non-bonding contact with the internal surface of the pipe. The peripheral extension (diametral swell) of the liner at the intended working pressure of the re­lined pipe should be less than 10% and preferably less than 5%.
      A method of sealing attachment of the ends of the liner and a method of forming branch connections to the lined pipe are also disclosed.
    • 衬套现有管道(11)的方法包括将可折叠,柔性的平层衬套(10)拉出,其具有不透水的弹性体材料的最内层13,所述最内层13与要由管道承载的流体相容, 纺织品加强中间层(14)和弹性体材料的外部保护层(15),所述衬里的外周长略小于管(11)的内周长度,并且使得所述流体 在其安装之后,通过衬套(10)将衬套膨胀成与管的内表面非接合接触。 在连续管道的预期工作压力下,衬管的外周延伸(直径膨胀)应小于10%,优选小于5%。 还公开了一种密封衬套的端部的方法以及形成到衬管的分支连接件的方法。
    • 9. 发明公开
    • A sewer cleaning shoe
    • 下水道清洁鞋
    • EP0042243A3
    • 1982-05-12
    • EP81302538
    • 1981-06-08
    • The Thames Water Authority
    • Crane, Norman William
    • E03F09/00
    • E03F9/00
    • A sewer cleaning shoe for use in removing the detritus and sedimentary matter that accumulates in the invert of sewers comprises a partly-cylindrical framework (1, 11, 14, 19) which fits in the invert of a sewer, a transverse barrier (2, 5, 23) which is connected to the framework and which, in use, substantially fills the lower part of a sewer but stops short of the top of the sewer to form a dam extending across the sewer, and an orifice (6, 18) through the transverse barrier adjacent its base through which, in use, a part of the effluent carried by the sewer is jetted to scour the detritus and sedimentary matter from the invert of the sewer. The transverse barrier stops short of the top of the sewer and provides a weir over which the remainder of the effluent flow takes place. The jet of effluent from the orifice scours and loosens the detritus and concretions that have accumulated in the invert of the sewer, and then the loosened material is entrained by the cascade of effluent flowing over the weir at the top of the transverse barrier. The entrained detritus and sedimentary matter is then carried forward with the effluent towards the downstream end of the sewer.
    • 一种用于去除积聚在下水道内的碎屑和沉积物的下水道清洁鞋,包括:装配在下水道内的部分圆柱形框架(1,11,14,19),横向障碍物(2, 它与框架连接并且在使用中基本上填充下水道的下部,但是不到下水道的顶部以形成延伸穿过下水道的坝,并且孔(6,18) 通过邻近其底部的横向屏障,在使用中,由下水道携带的一部分流出物被喷射以冲刷下水道翻转过程中的碎屑和沉积物。 横向屏障在短于污水管顶部的地方停止,并提供一个溢流口,其余流出物流经该溢流口。 来自孔口的流出物冲刷并松散积聚在下水道倒置中的碎屑和结核,然后松散的物质被流过横向障碍顶部的堰上的流出物的级联夹带。 然后夹带的碎屑和沉积物随污水流向污水下游端。