Research on Permeability Testing Equipment of Polymer Material for Water Shutoff in Coal Mine
In order to solve the problem of shortage of testing equipment for permeability coefficient of polymer material used for water shutoff in coal mine,the permeability coefficient testing method was analyzed and studied.The main mechanical components such as specimen holder,stress frame,hydraulic cylinder,hydraulic pump and pressure sensor were selected and designed by theoretical calculation and verification.The measurement and control system based on VB language was developed to realize the closed loop control of axial load,confining pressure,seepage pressure and flow rate,real-time automatic data collection,calculation and output results.Taking the polymer material used for water shutoff in coal mine as the test object,the samples of natural water state,dry state and water saturation state were tested and verified.The results showed that the developed permeability testing equipment of polymer material for water shutoff in coal mine met the standard requirements,runs stably,had low noise,and had broad application prospects.
water shutoffpermeability coefficienttesting equipmentmechanical structuremeasurement and control system
万方数据
维普
