93results about How to "Reduce job safety risks" patented technology

The invention discloses a method for repairing the core of a rack transformer and belongs to the field of power maintenance. The method is characterized by comprising: (1) installing a gate-shaped support core hoisting tool on the channel steel on the bottom of the rack transformer for repairing the core; (2) fixing the core of the rack transformer by using the gate-shaped support core hoisting tool in the step (1); (3) hoisting the core of the rack transformer by using the gate-shaped support core hoisting tool in the step (1); (4) placing the hoisted rack transformer at an appropriate position; (5) enabling a worker to check and repair the core of the rack transformer; (6) hoisting the repaired core of the rack transformer over the rack transformer by using the gate-shaped support core hoisting tool, and installing repaired core of the rack transformer; and (7) detaching the gate-shaped support core hoisting tool to complete the maintenance. The method improves overhaul efficiency of the core of the rack transformer, decreases labor intensity, and reduces an operation safety risk and repairing cost.

The invention discloses a hot fluid injection blockage relieving and production increasing process for an immovable string. Hot fluid is injected into a stratum through thickened oil extraction equipment, and then well soaking, blowing and pump exhausting and production are conducted. According to the provided hot fluid injection blockage relieving and production increasing process for the immovable string, the operation cycle can be greatly shortened, the operation cost can be greatly reduced, pump starting and production can be timely conducted according to the condition of the output ratio of liquid, gas and oil during blowing, and the situation that the heat injection and production increasing effect is influenced due to operation of a movable string is avoided.

The invention discloses a special opeartion site abnormity early warning analysis system and method based on the Internet of Things, and belongs to the technical field of special work site abnormity early warning, and the system comprises a monitoring data collection module, a monitoring data intelligent analysis module, an abnormal condition alarm information research and judgment module, a site abnormal condition disposal feedback module and a special work database. The monitoring data collection module is used for collecting abnormal condition monitoring data and sending the acquired field monitoring data to the monitoring data intelligent analysis module; the monitoring data intelligent analysis module carries out unified data processing on the collected field monitoring data and sends the processed data to the special operation database; and in combination with the content of the alarm information database, the abnormal condition alarm information research and judgment module associates risk identification, operation analysis, safety measures and on-site operation steps in the operation ticket according to different preset alarm types, alarm information templates and alarm level rules.

The invention relates to a distribution ground rod having a detachable operating handle and an application method thereof. The distribution ground rod comprises a ground rod body, wherein the ground rod body comprises a vertical rod segment and a hook. The distribution ground rod is characterized in that a bottom end of the vertical rod segment is provided with a rotary supporting mechanism, connection with the detachable operating handle is realized by utilizing the rotary supporting mechanism, the rotary supporting mechanism comprises a rotary shaft, supporting rings and a vertical sleeve, the bottom end of the vertical rod segment of the ground rod body is inserted into the vertical sleeve and is locked by utilizing a locking nut, a circumferential surface of the rotary shaft between the two supporting rings is fixed with a limit sleeve perpendicular to an axial line of the rotary shaft, the other end of the limit sleeve is inserted into a piston rod, a stretching spring is connected between an inner end of the piston rod and the rotary shaft, and the detachable operating handle comprises an insulation rod and a hollow pipe fixed at the front end of the insulation rod. The distribution ground rod is convenient to operate, is reliable to use, realizes time saving and labor saving during ground wire mounting and dismounting, realizes hidden safety trouble elimination and has no damage to the ground wire in the operation process.

The invention relates to an underwater well repair assembly. The underwater well repair assembly comprises a safety joint, a blowout control valve, a totally-closed shear blade blowout preventer, a stress joint and a tie-back device which are sequentially connected from top to bottom, as well as a guiding short circuit arranged in the stress joint, wherein the safety joint is used for being connected with a drill pipe; and the tie-back device is used for being connected with an underwater Christmas tree. According to the underwater well repair assembly, well repair operation of a deep water oil and gas field can be performed by adoption of an active-service engineering ship, and a large-scale floating-type drilling platform or a special well repair ship for building is not required to be used, so that the operation cost can be greatly lowered, and the well repair efficiency is improved. As the safety joint is arranged, in case of such severe working conditions as typhoon during operation, emergency disposal can be performed, temporary well abandoning can be quickly and reliably conducted, the engineering ship or the drilling platform is withdrawn, and the safety risks during operation can be reduced. The underwater well repair assembly can be used for the engineering ship or the drilling platform, and can be widely applied to well repair operation of the deep water oil and gas field adopting an underwater production system development mode.

The invention relates to a deepwater oil-gas field light well repairing device and method. The deepwater oil-gas field light well repairing device comprises an overwater well repairing assembly, a drill pipe and an underwater well repairing assembly, wherein the overwater well repairing assembly can be connected with a crane on an engineering ship, the drill pipe is connected with the overwater well repairing assembly, and the underwater well repairing assembly is connected with the lower end of the drill pipe. The crane has the tension and heave compensation functions, and the underwater wellrepairing assembly comprises a safety joint, a blowout prevention valve, a whole-seal cutter ram blowout preventer, a stress joint, a tie back device and a guiding short circuit which are sequentially connected from top to bottom, wherein the guiding short circuit is arranged in the stress joint; and the underwater well repairing assembly is connected with the lower end of the drill pipe throughthe safety joint, and the tie back device is used for being connected with an underwater Christmas tree. According to the deepwater oil-gas field light well repairing device and method, the well repairing operation of a deepwater oil-gas field can be conducted by adopting the engineering ship, a large-size floating type well drilling platform does not need to be used, the operating cost can be greatly reduced, the well repairing efficiency is improved, and the deepwater oil-gas field light well repairing device and method are suitable for the well repairing operation of an underwater production system of an immovable string.

The invention discloses a special tool for opening a cable working well lid, and relates to the technical field of power cable operation inspection. The special tool for opening the cable working welllid is composed of an operation part and a supporting part, the operation part is mainly composed of a long handle, a short handle and an auxiliary spring set, the supporting part is mainly composedof three transverse supporting arms and three lateral supporting arms and is in a triangular cone shape, and the operation part and the supporting part are connected through two concentric rods. In anatural state, the transverse supporting arms and the lateral supporting arms in the supporting part are in a folded state so as to penetrate through a hole of the cable working well lid, the transverse supporting arms and the lateral supporting arms are in an unfolded state and are tightly attached to the inner side of the cable working well lid by operating the long handle and the short handle,and therefore the well lid is lifted. The special tool for opening the cable working well lid has the beneficial effects that by using the special tool for opening the cable working well lid, the cable working well lid can be conveniently and efficiently opened without being damaged, and the operation safety risk of personnel is greatly reduced.

The invention relates to a power operation site risk supervision intrusion video identification method, and belongs to an AI-based power grid production management safety operation management and control key technology, mainly aiming at identifying intrusion behaviors of a power operation site, being high in identification accuracy, and capable of realizing automatic monitoring and unattended operation. The power operation site risk supervision intrusion video identification method mainly comprises the following steps: step 1, initializing a background model; step 2, carrying out forward detection; step 3, updating the model; step 4, performing morphological filtering; step 5, acquiring a target area; step 6, performing regional module matching; and step 7, marking a non-staff invasion area. The power operation site risk supervision intrusion video identification method provided by the invention is a power operation field risk supervision means based on deep artificial intelligence, realizes high-efficiency supervision of the operation field, improves the supervision level, and reduces the operation safety risk.

The invention discloses a method for installing an enclosed busbar and an auxiliary adjusting tool. The auxiliary adjusting tool is employed as a rigid support, which makes it easy to transport enclosed busbar pipe joints to other sites, and conduct detection and adjustment and also fitting-up and welding on the enclosed busbar pipe joints. Large amount of high altitude constructions are plumbed to ground horizontal construction, which meets high precision for installation and adjustment of the enclosed busbar. Simultaneous lifting of a permanent supporting crossbar and a temporary crossbar is employed, which helps to realize precise and safe lifting and installation of the entire three-phase busbar. According to the invention, the method and the auxiliary adjusting tool reduce large-area bent and air welding platform establishing, reduce safety hazards in construction, shorten installation construction period, and have the advantages of being economical, practical, and efficient.