| 摘要 |
PURPOSE: An anti-fouling device for a tube well with an anti-freezing unit is provided to prevent the anti-fouling device from being frozen by discharging water to outside. CONSTITUTION: An anti-fouling device for a tube well comprises a branch pipe(20) and an anti-freezing unit(30). The branch pipe is connected in a pumping pipe. The anti-freezing unit is installed on the upper end of the branch pipe. The anti-freezing unit comprises a discharge gap, a valve housing, a water sampling pipe and a discharging pipe(34). The anti-freezing unit more includes a water discharging valve(35) and an elastic member(36). |
