55results about How to "Improve safety management efficiency" patented technology

The invention provides a dynamic classification method of a risk of the liquid chemical pipeline leakage of a petrochemical wharf. The dynamic classification method comprises determining the form of a leakage source; establishing a leakage model according to the determined form of the leakage source and obtaining the leakage rate of dangerous chemicals; obtaining the maximum area of a formed liquid pool according to the determined leakage rate of the dangerous chemicals; establishing a liquid pool evaporation model according to the maximum area of the formed liquid pool and obtaining the evaporation capacity of the dangerous chemicals; establishing a damage model according to the accident consequence and calculating out twelve types of accident consequence evaluation indexes; evaluating the risk of a unit according to the petrochemical wharf pipeline transportation process and obtaining four types of process risk evaluation indexes; substituting the obtained sixteen types of evaluation indexes into a DT classification model and obtaining the risk level of a dangerous chemical transportation pipeline. According to the dynamic classification method of the risk of the liquid chemical pipeline leakage of the petrochemical wharf, the accident consequence of the petrochemical wharf pipeline leakage can be simulated, the relative risk level of different transportation pipelines of the dangerous chemicals can be determined, the focus objective of petrochemical wharf safety monitoring can be determined, the accident rescue force can be arranged, and the efficiency of safety management can be improved.

The invention discloses automatic test equipment for looseness of a screw of a locomotive and an automatic test method. The test equipment comprises a camera, a DSP (Digital Signal Processor), a sound early warning device, a GPRS (General Packet Radio Service) antenna and an SD (Secure Digital) storage card. The shape of the equipment is improved on the basis of a conventional flashlight, wherein the camera is installed at a lamp holder of the flashlight without affecting normal irradiation of a light source of the flashlight, and the DSP, the sound early warning device, the GPRS antenna and the SD storage card are positioned in the flashlight. Through local test and network background linkage, an image identification algorithm is adopted for realizing state identification of a screw looseness-prevention marking, so as to judge whether the screw is loosened, a numbered code corresponding to each screw is identified in a matching way, so that a background manager can intuitively and clearly know the looseness state of each screw through information transmission, the problems of high unreliability, high test leakage and false risk and the like existing in the conventional method completing looseness test of the screw of the current locomotive by depending on human experience are solved, and the scientificity and the intelligentization of the looseness test of the screw of the locomotive are enhanced.