| 摘要 |
In the field of water-supply engineering, it is possible to use a throughflow developing chamber for taking specific samples of water and for carrying out delimited checks on operation and output in vertical and horizontal filtering wells and in pipelines which are in operation. In this arrangement, a specific section of a filtering path or a pipeline is delimited by an annular seal, while continuing operation of the well or of the pipeline is ensured via a throughflow pipe. Via filtering pipes which are arranged in the outer region of the chamber, specific water samples can be taken and, in addition, specific checks for a wide range of objectives can be carried out on pipelines. By incorporating vertical sheet-metal partitions, the throughflow developing chamber can be subdivided into further inspection areas. See drawing no. 1 in this respect. The reference numbers from 1 to 9 refer to the following design features: 1 - flat rubber seals (collars) 2 - operational length 3 - throughflow pipe 4 - securing means for vertical sheet-metal partitions 5 - filtering pipes 6 - closed circular pipeline 7 - shut-off members 8 - sheet-metal partitions with rubber seal 9 - pipe-thread developing stub <IMAGE>
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