Calculation on the working situation about relayed system for drainage of large-scale dive electric pump

According to the actual characteristics of relayed system of drainage for rescue in deep mines, analyzes the main factors, which influence working situation about relayed system for drainage of large-scale dive electric pump were analyzed;the corresponding mathematics model and a universal program to determine and analyse the working situation of the drainage system for rescue in deep mines with Visual Basic6.0 were established; and. Combined with the instances, the established mathematics model and the developed program are verified, the basis for establishing and controlling the working situation about relayed system for drainage of large-scale dive electric pump is offered reasonably, and the reliable degree for rescue is improved.