8 results about "Safety water" patented technology

This invention discloses an auxiliary device for the maintenance of an electrically heated crossarm, relating to the field of safe operation assistance technology. It includes a first platform, a second platform, and a fixing device. The first platform has a lower surface adapted to the upper part of the electrically heated crossarm, allowing it to rest on the upper surface of the crossarm. The first platform includes a front, middle, and rear section extending sequentially. The fixing device is installed at the rear of the first platform to secure it to the electrically heated crossarm. The second platform is connected to the front of the first platform via a connecting assembly, ensuring that the second platform is at a lower horizontal height than the first platform and located at the end of the electrically heated crossarm. This invention solves the technical problems of high safety risks and low work efficiency during online maintenance and cable removal / installation of electrically heated water-cooled crossarms, reduces labor intensity, improves the inherent safety level of equipment maintenance, protects the lives and property of employees, and provides reliable equipment operation support for the stable production of high-end steel grades.

This invention discloses an underground heavy oil spill lifting and conveying system and method, including an underground oil spill tank, an above-ground oil spill tank, a heavy oil spill pump, and a third line for conveying nitrogen. The above-ground oil spill tank is connected to the underground oil spill tank via a first line. The heavy oil spill pump is located on the ground, with its inlet and outlet connected to the underground oil spill tank and pump outlet pipeline, respectively. A self-priming return line is connected to the pump outlet pipeline and is also connected to the underground oil spill tank. The third line is connected to the underground oil spill tank and includes a nitrogen regulating valve assembly and a check valve. The nitrogen regulating valve assembly on the third line is used to pressurize the underground oil spill tank, assisting the heavy oil spill pump in achieving self-priming, avoiding confined space operations and explosion risks, solving the problem of poor flow of atmospheric pressure waste oil into the tank, ensuring reliable intake of high-viscosity oil, and significantly improving the intrinsic safety level of the device.

This invention provides an oil spill monitoring and automatic protection device and method for drinking water intakes. The device includes a monitoring unit, a control unit, and an execution unit. The monitoring unit is deployed in the upstream water area of ​​the intake to monitor oil spill pollution on the water surface and in the water in real time, generating monitoring data. The control unit is communicatively connected to the monitoring unit and is used to receive and process the monitoring data to determine whether an oil spill event has occurred, and to issue an interception command when an oil spill event is determined to have occurred. The execution unit includes a barrier device and a drive mechanism for driving the barrier device. The barrier device is deployed in the upstream water area of ​​the intake, and the drive mechanism is communicatively connected to the control unit. The drive mechanism is used to receive the interception command and control the barrier device to intercept the oil spill. This invention can automate the process from risk perception to protective action, completing the blockage before the oil spill reaches the intake, gaining valuable time for manual handling, and improving the emergency response capability and safety level of drinking water sources.

The present application relates to offshore wind power engineering and structural reliability analysis technical field, disclose a kind of based on reliability analysis's offshore wind turbine single pile foundation design formula safety level checking method under extreme environmental conditions.The method is based on the historical information of marine environmental data, establish the probability distribution model of environmental random variable and related structural parameters acting on offshore wind turbine, and under the condition of preset recurrence period, combined with soil condition characteristics, the key structural response of single pile foundation is obtained by finite element simulation simulation.Further based on the statistical results of structural response, the probability distribution of the annual maximum bending moment of single pile foundation is determined, the limit state function corresponding to the design formula is constructed, and the reliability analysis method is used to calculate the reliability index and the corresponding safety level of the design formula.The present application can provide a theoretical basis for the trade-off and decision-making of economic cost and safety level in offshore wind turbine foundation design under the premise of ensuring structural safety.

The application discloses a coal conveying belt operation protection method and system based on data analysis, which comprises the following steps: acquiring and analyzing multi-dimensional operation monitoring data of the coal conveying belt to determine abnormal parameters; determining abnormal data features based on the data of the abnormal parameters, and determining the abnormal degree of the abnormal parameters based on the abnormal data features; fusing different abnormal parameters to obtain high-dimensional fused abnormal parameters, and determining the abnormal operation type of the coal conveying belt based on the high-dimensional fused abnormal parameters; determining the comprehensive abnormal degree of the high-dimensional fused abnormal parameters based on the abnormal degree of the abnormal parameters, and judging whether to perform operation protection on the coal conveying belt based on the comprehensive abnormal degree; determining the operation protection action of the coal conveying belt based on the comprehensive abnormal degree and the abnormal operation type, and protecting the operation of the coal conveying belt based on the operation protection action. The application determines the protection action of the coal conveying belt in advance through multi-dimensional data comprehensive quantitative analysis, realizes the leap from post-protection to intelligent pre-decision, and greatly improves the safety level of the operation of the coal conveying belt.

The application discloses a kind of coal mine underground reservoirs multi-reservoir coordinated emergency regulation and control method, equipment and medium, belong to mine water safety and resource utilization technical field, it is applied to the distributed system including multiple underground reservoirs and interconnection pipe network, it aims at solving the problem of insufficient emergency coordination ability and regulation and control response lag under water level overrun emergency working condition, specifically includes: determining early warning level based on real-time water level and safety water level upper threshold, and automatically matching initial emergency regulation and control mode;Corresponding emergency regulation and control model is called to carry out simulation calculation, generates emergency regulation and control scheme, and obtains predicted water level and predicted regulation and control duration;According to the prediction result, dynamically determine whether the regulation and control mode needs to be upgraded in the order of increasing regulation and control intensity, until the scheme meets the requirements after issuing execution, realize the rapid start-up and accurate adaptation of emergency regulation and control, improve the disposal ability and level of distributed coal mine underground reservoirs in response to water level overrun and other emergency conditions, and take into account the comprehensive utilization rate of mine water resources.

This invention discloses a graded collaborative prevention and control method and system for deep roadways in water-rich soft rock, belonging to the field of mining engineering and safety technology. To address the problems of existing technologies' single prevention and control measures, reliance on experience, and lack of coordination, this invention obtains dynamic safe water head by acquiring confined water pressure, surrounding rock deformation, in-situ stress, and rock mechanics parameters, and corrects for these parameters through hydraulic softening reduction and in-situ stress non-uniformity influence coefficient. It constructs a multi-factor quantitatively integrated dynamic risk index and performs risk classification; based on the risk level, it selects templates from a template library and parameterizes them to generate an integrated prevention and control scheme including asymmetric support and graded water hazard response; the scheme is deployed and executed, and the risk index is updated in a closed loop based on real-time feedback, triggering dynamic adjustments to the scheme. This invention achieves a transformation from experience-based prevention to model-driven, precise collaboration, and closed-loop control, significantly improving the prevention and control efficiency and engineering safety of floor heave and water inrush disasters in deep roadways in water-rich soft rock.