Overflow Pipe Insertion Depth And The Cylindrical Section Height Of Cyclone Filter Settling Effect

China is a large agricultural country is also a relatively water-scarce countries in the agricultural production process, efficient water-saving irrigation methods will be our country’s water resources protection and rational use of providing an effective means. Various irrigation methods, drip irrigation is undoubtedly an efficient, rational irrigation methods, especially for China’s scarce water resources in the arid and semi-arid areas be more appropriate to use drip irrigation as a means of irrigation. Although drip irrigation system is an advanced irrigation methods, but due to the end of the drip irrigation system emitter diameter of only1mm to fully filter the water in the solid impurities, especially sand and other impurities into the drip irrigation system in the water to meet the drip irrigation systems on water quality requirements, which its filtration system has a relatively high demand.In this thesis, by changing the drip irrigation system in the most commonly used cyclone filter overflow tube insertion depth and the cylindrical segment height tested using Fluent numerical calculation software for the numerical simulation, and compared the overflow pipe insertion depth and height of cylindrical section to change the pressure of the cyclone filter internal flow field and to the velocity, a simple analysis of the swirl filter when selected structural parameters change the internal flow field pressure and the flow rate trend. Through field experiments and numerical simulation to prove the feasibility of using Fluent computational fluid dynamics software to simulate the internal flow field of the cyclone filter streaming filter.