Interval wet mixing type hydrant system that does of subway

The utility model provides an interval wet mixing type hydrant system that does of subway divide into dry fire hydrant pipeline section, wet -type fire hydrant pipeline section and the dry fire hydrant pipeline section triplex that connects gradually with interval fire service pipe net, closes on station one end at the dry fire hydrant pipeline section and is provided with electronic quck -opening valve, sets up discharge valve and wash -out valve in dry fire hydrant pipeline section and wet -type fire hydrant tie -in department, is provided with motorised valve and manometer at wet -type fire hydrant pipeline section both ends. The utility model discloses an effect can effectively reduce insulation material's use, and reduce and to change the operation maintenance cost who brings with the electric tracing power consumption because of the material is ageing, interval reducible the uses insulation material 17m3 in the accurate underground of every segment mark, the reduction of the comparable wet -type system