Water-supply pipeline filtering device

Abstract

The invention relates to a city tap water supplying and cleaning device and in particular relates to a water-supply pipeline filtering device. The water-supply pipeline filtering device comprises a connecting barrel with flange plates at two ends, wherein the pipe diameter of the middle part of the connecting barrel is greater than the pipe diameters of two ends of the connecting barrel, a tubular filter screen is arranged in the connecting barrel, one end of the filter screen is fixedly connected with the water inlet end of the connecting barrel, a sheet-like water guide valve is arranged in the filter screen, the water guide valve is the same as the cross section of the inner pore of the filter screen in shape, the water guide valve is connected to a handle on the outer wall of the connecting barrel by a valve rod, the other end of the filter screen is closed, a blow-off pipe introduced into the filter screen is arranged at the closed end of the filter screen, the other end of the blow-off pipe is arranged outside the connecting barrel and is sealed by a cover, a pressure spring is arranged between the closed end of the filter screen and the water guide valve, and the outer diameter of the pressure spring pushes against the inner wall of the filter screen. According to the water-supply pipeline filtering device, tap water can be filtered, and the filtering device can be cleaned and regenerated well.

Description

technical field [0001] The invention relates to an urban tap water supply cleaning device, in particular to a water supply pipeline filtering device. Background technique [0002] The domestic water for urban users is mainly drawn from rivers, lakes, groundwater, and surface water through the water intake pumping station of the water plant. According to the relevant national sanitary standards for drinking water, it is treated through processes such as sedimentation, disinfection, and filtration, and finally passes through the water distribution pumping station and A network of pipes delivers to individual users. The water in the pipeline often produces impurities again during the circulation process. These impurities mainly come from the long-term deposition of impurities in a small amount of tap water, as well as the corrosion and shedding blocks formed by the long-term disrepair of the tap water pipeline, and a few pipelines with poor circulation. produced after water de...

AI Technical Summary

Problems solved by technology

Although such a filter cartridge can better filter impurities, the accumulation of impurities on the filter screen will lead to a continuous decrease in filtration efficiency, and it is also difficult to replace the filter screen, which often requires interruption of water supply. Therefore, it is urgent to improve the existing filter device.

Images