High-efficiency interruption-preventing filtering device for mechanical impurities in crude oil

The invention discloses a high-efficiency interruption-preventing filtering device for mechanical impurities in crude oil. The high-efficiency interruption-preventing filtering device is characterized in that a pressure gage (1) and a flowmeter (2) are arranged at a crude oil inlet sequentially; the pipeline behind the pressure gage (1) and the flowmeter (2) is divided into two branches; a first control valve (3), a first stop valve (4), a first filter (5) and a second stop valve (6) are arranged on one branch of the pipeline sequentially; a second control valve (12), a sixth stop valve (11), a second filter (10) and a fourth stop valve (8) are arranged on the other branch of the pipeline sequentially; the two branches of pipeline are converged to a crude oil outlet. The high-efficiency interruption-preventing filtering device overcomes the defects that crude oil transportation is interrupted easily and causes accidents after a filter cartridge of the conventional crude oil filter is blocked in the prior art,