Backwashing pipeline type filter

The pipeline type filter comprises an inlet butterfly valve, a barrel, a filter screen, an outlet butterfly valve, a bypass pipeline and a valve, the filter screen is arranged in the barrel, and the inlet butterfly valve and the outlet butterfly valve are arranged at the inlet end and the outlet end of the barrel respectively; a bypass pipeline and a valve are further arranged on the side face of the outlet end of the barrel. According to the pipeline type filter capable of being backwashed, the influence of impurities in seawater on filth blockage and clamping stagnation of downstream equipment of the filter can be reduced, and the problems that the filter is prone to blockage, and the filter cannot work during washing are solved. 本发明涉及一种可反冲洗的管道式滤器，包进口蝶阀、筒体、滤网、出口蝶阀、旁通管路及阀门，所述筒体内设有滤网，筒体进出口端分别设有进口蝶阀、出口蝶阀；所述筒体的出口端侧面还设有旁通管路及阀门。本发明的可反冲洗的管道式滤器能降低海水中杂质对滤器下游设备脏堵、卡滞的影响，解决了滤器易堵、冲洗时滤器无法工作等问题。