8results about How to "Avoid major accidents" patented technology

The invention relates to a water spraying system capable of inhibiting flash explosion fire on a drill floor, which belongs to the technical field of fire extinguishing systems of drilling platforms and comprises a water tank, a submersible pump, a steel pipeline and a directional spray head, a plurality of steel pipelines with directional sprayers are arranged upwards from a derrick of a drilling machine to a crown block, the directional sprayers are of tubular structures, the two ends of each directional sprayer are in screwed connection with the steel pipelines, the steel pipelines are connected through bent connectors, and the steel pipelines are in threaded connection with the bent connectors. The water spraying system is easy to install and convenient to control, manual / automatic control can be directly conducted by a specially-assigned person, water mist is fully distributed in the space from the drill floor face to the top of the crown block, and flash explosion and fire accidents caused by the fact that the concentration of flammable and explosive hazardous gas reaches the explosion limit are prevented.

An optimization method for stabilizing photovoltaic (PV) power generation fluctuations using distributed energy storage based on scenario sets is proposed. This method establishes a dispatchable capacity model for distributed energy storage based on its physical characteristics; establishes node voltage constraints and branch transmission capacity constraints for the distribution network; introduces reactive power regulation equipment to establish a dispatchable reactive power support range; and maintains power and voltage stability through distributed energy storage and various reactive power regulation devices while considering branch transmission capacity constraints. Finally, a coordinated optimization model for distributed energy storage based on PV power generation prediction scenarios is established. This invention prioritizes the basic safety of the distribution network and can be well applied to cities with abundant solar resources. By equipping distributed energy storage and certain reactive power regulation devices, it alleviates power and voltage fluctuations caused by intermittent PV power generation, thereby improving grid operational stability, reducing economic costs, and conserving resources.

The application relates to the technical field of fan blade detection, in particular to a fan visual inspection system and device based on a UAV and a readable storage medium, which comprises the following steps: step S1: using a UAV to move around a fan according to a preset path and recording a video of the fan; step S2: frame extraction is performed on the fan video to obtain multiple detection images; step S3: the detection images are input into a trained Yolov8m model to detect surface defects of the fan; and step S4: the detection images are input into a trained Yolov8s-OBB model to identify the blades and the tower drum, and the blades and the tower drum identified based on the Yolov8s-OBB model are used to detect the blade sweep tower. The blade sweep tower detection based on the position relationship realizes an early warning function, prevents major accidents and reduces maintenance costs; in addition, the whole process can be quickly deployed in a wind farm, supports large-scale continuous monitoring, optimizes resource utilization and enhances the reliability and service life of the fan.

The utility model discloses intelligent data monitoring equipment for forestry and agriculture, which comprises a hollow shell. The battery pack, the network module, the GPS module, the three-in-one module, the soil acidity and alkalinity testing module, the solar energy and wind power and external charging module, the crop diameter and distance module, the wind speed module and the moisture module are connected with the main control board, and the three-in-one module comprises a temperature sensor, a humidity sensor and an air pressure sensing module. According to the monitoring equipment provided by the utility model, the growth condition of crops in forestry and agriculture is detected through the modules, the main control board can send data detected by the modules through the network module, and the data of a monitored destination point can be safely and timely seen for analysis, adjustment and improvement while the labor cost is reduced; major accidents are prevented; a plurality of modules and batteries are integrated in the equipment, so that production, installation and debugging are facilitated, and the working mode of a traditional multi-combination module is changed.

The application relates to a method for preventing burning of residual magnesium alloy liquid in a low-pressure pouring crucible, and aims to solve the problem that burning of magnesium in a pouring mold is easy to cause burning of residual magnesium liquid in the crucible, leading to explosion of a tank body and existence of a major safety hazard. The method comprises the following steps: step one, placing a liquid lifting pipe flange on a liquid lifting pipe on a low-pressure pouring equipment mold; step two, equalizing the pressure in the low-pressure pouring equipment mold and the working tank before low-pressure pouring; step three, filling gas into the working tank when the pouring work starts; and step four, starting a pressure relief valve of the working tank to discharge the gas in the working tank after the low-pressure pouring equipment mold completes the pouring technical parameters and indexes. The application belongs to the field of magnesium alloy pouring forming.

This application provides a data processing method and a safety instrumented system (SAS) applied to a server. The method receives a SAS design request from a user device, the request including any one or more regulations, standards, laws, industry standards, and policies. The method evaluates the SAS design request to obtain a first evaluation result. Based on the first evaluation result, it matches a corresponding SAS design from a pre-set SAS library. Finally, it sends the SAS design to the user device to facilitate implementation. This method can set up a SAS corresponding to the specific needs of different factories and enterprises, facilitating the identification of potential risks.

The application discloses a diaphragm compressor oil supplementing system, comprising: an oil supplementing oil way connected between a plunger pump and a cylinder, wherein a flow sensor one is arranged in the oil supplementing oil way; a branch oil way connected between the plunger pump and a crankcase, wherein a flow sensor two and a flow proportional valve are arranged in the branch oil way; an overflow oil way connected between the cylinder and the crankcase, wherein an overflow valve and a flow sensor three are arranged in the overflow oil way; and a PLC acquiring flow data of the flow sensor one, the flow sensor two and the flow sensor three, and capable of adjusting the opening degree of the flow proportional valve. The application further discloses a diaphragm compressor oil supplementing method. The application solves the technical problems that the oil supplementing amount cannot be dynamically adjusted, the oil supplementing amount is too much or too little, the oil supplementing system cannot be detected, and problems cannot be found in the first time.

The utility model discloses a wind turbine main shaft anti -loose structure, including the axle body, the axle body one end is provided with the wheel hub coupling flange, the axle body other end is linked with gear box low speed axle through the expansion sleeve, the expansion sleeve includes the outer ring, the inner ring and a plurality of groups of the bolt for connecting the outer ring and the inner ring, the end of bolt is provided with the nut and the anti -drop piece, the anti -drop piece and the nut number corresponding and the end of outer ring is arranged in the circumferential arrangement, and anti -drop piece can rotate around bolt axis, and is locked and fixed in the outer ring end portion through the nut, when anti -drop piece rotates to the preset position, can limit the nut on adjacent bolt and take off along the axial direction. The utility model discloses through setting up the anti -drop piece, utilize the nut on a bolt to fix the anti -drop piece, and the spacing clamp holder of this anti -drop piece can limit the nut on adjacent bolt simultaneously.