33results about How to "Reduce major accidents" patented technology

The invention relates to a protecting device of an oil-immersed transformer. The protecting device comprises a transformer oil tank and a tank cover. A transformer body of the transformer is placed in transformer oil of the transformer oil tank, a heating and radiating integrated device for protecting the transformer is arranged on the outer side of the transformer oil tank, an oil leakage protecting layer is further arranged between the heating and radiating integrated device and the transformer oil tank, the oil leakage protecting layer comprises an outer shell arranged on the outer side of the transformer oil tank, the lower end of the outer shell is in an arc shape, a liquid sensor for sensing whether liquid exists or not is arranged at any position of the lower end of the outer shell, a transformer oil outlet is formed in the lowest end of the outer shell, the transformer oil outlet is controlled by a controller connected with the liquid sensor to be opened and closed, and the controller is further connected with an alarm device. The protecting device is novel in structure, flexible in radiating and heating mode, stable in oil leakage protection, stable in performance and high in practicality, protects the environment, has the function of protecting the transformer, and prolongs the service life of the transformer.

The invention provides a harbor lifting machinery operation safety machine-mounted early warning system including a data acquisition layer, a data transmission layer and an industrial control computer; the industrial control computer includes a data acquisition interface, a data monitoring module and an early warning module; the data acquisition layer is used for acquiring a monitoring value of monitored harbor lifting machinery, and transmitting the monitoring value to the data acquisition interface of the industrial control computer through the data transmission layer; the data monitoring module is used for setting an early warning value for each monitoring parameter, and if one monitoring value exceeds the early warning value, alarming is carried out through the early warning module. The harbor lifting machinery operation safety machine-mounted early warning system can comprehensively and effectively monitor the harbor lifting machinery operation safety condition, and achieves effective long-term health monitoring on the harbor lifting machinery.

The invention discloses a processing method when a video server is congested, which is used for preventing message storm from being produced, and preventing accidents of the video server such as equipment halting caused by reaching processing bottleneck. The method comprises the following steps that: a video camera sends a first message to the video server; the video server analyzes an IP header from the first message when finding in a processing bottleneck state; an IP address of the video camera is acquired; the video server sends a backoff message to the video camera according to the acquired IP address; and after the video camera receives the backoff message, the video camera determines time delay duration according to a preset algorithm, and sends the first message to the video server again when the time delay duration is reached. The invention also discloses a device and a system for realizing the method.

The invention discloses a molecular pump maintenance decision-making management system and method for a fusion device. The system includes a molecular pump state information acquisition and storage module, which is used to obtain the molecular pump operation data and store the real-time state data in a local storage medium. The molecular pump characteristic information extraction module receives the molecular pump operation data, performs data analysis and processing, and extracts the molecular pump characteristic information; the molecular pump life prediction and result output module predicts the life of the molecular pump according to the characteristic information extracted by the molecular pump characteristic information extraction module , to obtain the predicted result; the molecular pump maintenance strategy module is used to formulate the molecular pump maintenance strategy according to the obtained predicted result. The present invention effectively reduces the possibility of actual failure of the molecular pump during the operation of the fusion device through the preventive molecular pump maintenance method, thereby reducing the possibility of secondary accidents in the fusion device caused by the failure of the molecular pump, thereby improving the vacuum in the fusion device. Security of the system and the entire installation.

The invention relates to an metro motor connecting soft cable which is characterized by comprising a conductor and a radiation XLPE insulation layer extruded on the appearance of the conductor; the radiation XLPE insulation layer comprises the following components in percentage by weight: 25 to 35 percent of EVA resin, 5 to 15 percent of calcium carbonate, 50 to 65 percent of magnesium hydroxide, 1 to 5 percent of chemical inhibitor 1010 and 1 to 3 percent of TAIC; and wherein the particle fineness of calcium carbonate is 700 to 1000mesh. The invention also relates to a production method of the metro motor connecting soft cable. The invention has the advantages of low smoke, halogen-free, environmental protection, and good flame-retardant and oil resistant performance.