109results about How to "Reduce operational security risks" patented technology

The invention discloses a track center line automatic detection method based on vehicle-mounted mobile laser point cloud. The method comprises the following steps: S1, point cloud segmentation of a roadbed and a track; s2, track point cloud classification; s3, automatic track center line detection: according to a cross section design drawing of a standard steel rail, automatically reconstructing astandard three-dimensional geometric model of the steel rail in a segmented manner, carrying out iterative registration on the standard steel rail model and the segmented steel rail point cloud in the S2, and carrying out automatic reconstruction on a segmented three-dimensional model of the steel rail; calculating track geometric parameters by utilizing the reconstructed track three-dimensionalgeometric model, calculating track center line point locations in a segmented manner on the basis of the reference track, and sequentially connecting the track center line point locations extracted inthe segmented manner to form a line center line. According to the method, roadbed and rail point clouds can be rapidly segmented, the area of rail point cloud classification search is reduced, automatic classification of laser point clouds on the surfaces of left and right steel rails is realized, and the precision requirement of existing rail transit midline detection can be met.

The invention discloses a monitoring device and an online monitoring method of a quick closing process of a steam turbine inlet valve. The monitoring device comprises first to n-th main valve displacement transducers for measuring the opening of a main valve of the steam turbine, first to m-th control valve displacement transducers for measuring the opening of a control valve of the steam turbine, a first pressure sensor for measuring the oil pressure of a servomotor, a second pressure sensor for measuring the oil pressure of AST, a trip circuit for measuring trip signals, a high-speed data acquisition device and a computer. The on-line monitoring method comprises the following steps of initialization, parameter setting, acquisition, alarming, displaying and querying. The monitoring device and the online monitoring method provided by the invention have the beneficial effects of realizing real-time online continuous monitoring of a steam turbine valve closing process, evaluating and early warning the valve state, realizing fast fault positioning, and having an important significance for realizing the predictive maintenance of equipment, reducing the operational security risk, and ensuring the reliable operation of the steam turbine.

The invention belongs to the technical field of steel structure construction, and particularly relates to an installation method of a special-shaped and curved-surface suspension type steel structuresystem. The problems are solved that the construction precision of a traditional installation method is difficult to guarantee, the construction period is long, a large amount of cost needs to be invested in scaffold and inclined suspender layer-by-layer hoisting, and many high-altitude hidden dangers exist. The special-shaped and curved-surface suspension type steel structure system comprises a core cylinder, a giant truss, a temporary support, an inclined suspender and beams of all floors. The installation method comprises the following steps that S1, the core cylinder is constructed; S2, the temporary support is installed; S3, the giant truss is assembled on the ground; S4, the giant truss is hoisted; S5, the inclined suspender is installed; S6, the temporary support is unloaded; S7, the beams of all the floors are hoisted; and S8, the displacement of the giant truss is monitored in the steps of S4-S7. According to the installation method, the construction precision is guaranteed, the installation efficiency is high, the installation construction period is shortened, and the operation safety risk is reduced. The erection and hoisting cost of a scaffold is saved, the high-altitude butting joints are reduced, the near-edge protection cost is reduced, and therefore the construction cost is reduced.

The invention discloses a measuring device for thrust loading of a sliding thrust bearing. The measuring device comprises an annular base plate, wedge-shaped sliding blocks and resistance strain type force meters. The annular base plate is coaxially arranged between a thrust block holder and a thrust bearing shell in a sleeved mode. A plurality of radial holes are formed in the circumferential direction of the peripheral end face of the annular base plate. Through holes communicated with the radial holes are formed in the positions, corresponding to the radial holes, of the shell. The wedge-shaped sliding blocks are contained in the radial holes in the annular base plate through the through holes in the shell, and can be pulled out of the shell from the radial holes through the shell. The resistance strain type force meters are contained in the sliding blocks, and one end of each resistance strain type force meter abuts against and is connected with the thrust block holder. The invention further discloses a measuring device for the thrust loading of the sliding thrust bearing, and the application of the measuring device and method. According to the device and the method, the structure of the thrust bearing is slightly modified, and particularly the supporting structure of a thrust block is not changed; the lubrication performance of the thrust bearing is not affected, and the risks of safety running of the thrust bearing are not increased; meanwhile, the force meters can be easily overhauled and replaced under the condition that the shell of the thrust bearing is not disassembled.

An electrical equipment transformation method comprises the steps: obtaining equipment information of electrical equipment; judging the equipment information by the utilization of preset priority conditions, regarding electrical equipment corresponding to the equipment information which meets the priority conditions as electrical equipment with high transformation priority, and regarding electrical equipment corresponding to the equipment information which does not meet the priority conditions as electrical equipment with low transformation priority, wherein the priority conditions comprise a qualitative judgment condition and a quantitative judgment condition; carrying out electrical equipment risk assessment on the electrical equipment with the high transformation priority, and obtaining a risk value; obtaining operation age limit information of the electrical equipment with the low transformation priority; working out sort information for transforming the electrical equipment with the low transformation priority according to the risk value, the operation age limit information, an economical index value and a developmental index value; transforming the electrical equipment according to the priority and the sort information. By means of the electrical equipment transformation method, safe operation risks existing in the electrical equipment are reduced.

The invention relates to the technical field of Internet of Things equipment, and discloses a wind power generation equipment protection device based on Internet of Things. The device comprises a power generation bin, wherein a transmission shaft is inserted into the right wall of the power generation bin; the outer wall of the right side of the transmission shaft is connected to a drive gear in asleeved mode; the outer wall of the drive gear is engaged with a transmission gear; the left side of the transmission gear is fixedly connected to a generator; the outer wall of the left side of thetransmission shaft is connected to a reduction gear in a sleeved mode; the inner wall of the reduction gear is movably connected to a reduction rod; and the outer wall of the reduction gear is engagedwith a rack. According to the wind power generation equipment protection device based on the Internet of Things, the internal rack pops up through an electromagnetic sleeve, the rack drives the reduction gear to rotate, the reduction gear enables the reduction rod to drive a reduction piece to be attached to the transmission shaft through a guide groove arranged in the front face in order to decelerate the transmission shaft, the generator is prevented from being damaged due to too high rotation speed of the transmission shaft, and the service life of the wind power generation equipment is prolonged.

The invention discloses a tamping vehicle operation process simulation system based on a virtual reality technology. The system includes a video and audio system, a computing center, a control panel and a situational interaction control part, wherein the video and audio system includes an operation scene display device and a sound effect simulation system, the computing center includes an ALC simulation system and an operation control computation system, the control panel includes a tamping vehicle control device, an instrument and an indicating system, and the situational interaction controlpart includes a control terminal. According to a tamping vehicle operation process simulation method based on the virtual reality technology, based on a 3D tamping vehicle model, a 3D scene computation system simulates the situation that in the tamping operation measurement process, a geometrical relationship between multipoint coordinates in a 3D scene line are used, and line parameters in a virtual scene are computed through computer graphics and a numerical computation method. Through the system, related operators can be effectively organized to carry out emergency training and drills for emergencies, which can greatly improve the efficiency of emergency treatment and reduce the risk of accidents.

The invention discloses a method for synthesizing oligomeric alkyl phosphate by a one-pot method and a reaction device, and relates to the field of flame retardant manufacturing. On the basis of a traditional alkyl phosphate synthesis production process, one-pot synthesis is adopted, the safety risk in the intermediate product transfer process is avoided, meanwhile, the continuous adding mode of solid materials is optimized, a circulating flow jet reaction system is added, and by controlling the temperature, pressure and other conditions of the reaction system, the alkyl phosphate is obtained. Finally, the synthesis process of the oligomeric alkyl phosphate is optimized, the safety risk is reduced, the reaction time is shortened, and the reaction efficiency is improved. The alkyl phosphate oligomer jet circulation flow reaction system can carry out gas and liquid mass transfer reinforced flow circulation in the reaction system, so that the reaction efficiency is greatly improved, and the production period is shortened. When the reaction system is used for synthesizing the alkyl phosphate oligomer, the time for obtaining the product with the same quality is only about 1/5-1/3 of that of a traditional method.

The invention relates to the technical field of power grid maintenance. The invention discloses a power distribution network artificial intelligence inspection system. The power distribution network artificial intelligence inspection system comprises a human-computer interface unit server and a human-computer interface unit mobile terminal. The man-machine interface unit server comprises an inspection route making unit, a work task making unit and an inspection defect identification unit. The human-computer interface mobile terminal comprises a work task obtaining unit and a data content acquisition unit, and also includes an intelligent inspection server database connected with the human-computer interface unit server, an inspection result exporting unit connected with the intelligent inspection server database, a result interface connected with the inspection result exporting unit, an intelligent inspection mobile terminal database connected with the human-computer interface mobile terminal, a work task execution unit connected with the intelligent inspection server database, and a task execution interface connected with the work task execution unit. According to the invention, the inspection work efficiency can be effectively improved, and the inspection period is shortened, and the inspection work quality can be greatly improved, and the power grid safety operation risk caused by personnel shortage is effectively reduced.

The invention relates to the technical field of bridge engineering, and particularly relates to a steel truss girder cable-stayed bridge and a damper connecting bracket device thereof. The damper connecting bracket device comprises a bracket structure, an upper base, a lower base, a damper or a beam tower longitudinal fixing device or a steel truss girder pushing device, wherein the bracket structure is fixedly connected to the outer side of a lower chord node of the steel truss girder; the upper base is fixedly mounted at the bottom of the bracket structure; the lower base is fixedly mountedat the top of the bridge tower cross beam; one end of the damper, the beam tower longitudinal fixing device or the steel truss girder pushing device is hinged to the upper base, and the other end is hinged to the lower base; the beam tower longitudinal fixing device is used for restraining the steel truss girder in the longitudinal direction of the bridge; and the steel truss girder pushing deviceis used for longitudinally moving the steel truss girder along the bridge. The damper connecting bracket device has the advantages of being large in working space, convenient to operate, low in operation safety risk, capable of arranging a plurality of dampers and diverse in function.

The invention discloses drilling-pressing-tunneling integrated hard rock tunneling equipment, relates to the field of hard rock roadway (tunnel) tunneling, and can reduce potential safety hazards of tunneling work to the minimum and greatly improve the tunneling efficiency. The hard rock tunneling equipment comprises a tunneling machine, a drilling machine system and a hydraulic fracturing system, wherein the drilling machine system and the hydraulic fracturing system are mounted on the tunneling machine; the drilling machine system comprises a drilling machine, a drilling machine mounting table, a drilling arm, a sliding rail and a base; the sliding rail is connected to a rack of the heading machine; the hydraulic fracturing system comprises a water tank, a high-pressure pump, a pressure gauge, a water pressure monitor, a high-pressure pipe and a hole packer, and the high-pressure pump is fixedly connected to a rack of the heading machine. Not only is harmful gas not required to be discharged, but also integrated equipment is not influenced by working face space, so that the maneuverability of a drilling machine and hydraulic fracturing equipment is remarkably improved, and the purpose of improving the working efficiency of tunneling engineering is finally achieved.

The invention provides movable aircraft main wheel mounting equipment. The mounting equipment comprises an inner bearing structure, an outer supporting structure and a lifting structure. The inner bearing structure comprises an inner main frame, a fork rod, a limiting groove and a self-locking disc. The inner main frame is a square-ring-shaped frame body, a left fork rod cavity and a right fork rod cavity are formed in a lower bottom ring body of the square-ring-shaped frame body, and openings of the fork rod cavities face the front face of the inner bearing structure. The number of the fork rods is two, and the two fork rods are inserted into the two fork rod cavities respectively. A through limiting groove is formed in the position, close to the back face of the inner bearing structure,in an inner cavity body of the fork rod cavity, and the self-locking disc is arranged on the back face of the inner bearing structure and penetrates through the limiting groove to be connected with the fork rod in the fork rod cavity. By means of the arrangement, the efficient, safe and high-quality installation requirements of the aircraft main wheel are met, the installation efficiency and installation safety of the aircraft main wheel are improved, and the product damage rate is reduced.

The invention discloses a method for splicing an arc-shaped space truss. The method comprises the following steps of: 1, searching the radius r of each node sphere according to a design drawing, and performing three-dimensional transformation on a spliced downward-pointing triangle truss to form an equilateral triangle truss; 2, marking a connecting line of the two ends of the equilateral triangle truss to be used as an auxiliary line, marking a vertical bisector of the auxiliary line, and establishing a coordinate system by using a central point as the original point and the auxiliary line and the bisector as an X axis and a Y axis respectively; 3, labeling a central three-dimensional coordinate value of each node sphere according to the coordinate system respectively; 4, determining the supporting height of a spherical node at the position of the maximum y value and a difference value between each node and the radius of the spherical node, determining the supporting height of each spherical node according to a coordinate value y, and firmly welding a support with a jig frame; and 5, partially splicing the truss, dismounting an upper spherical node support, and splicing a lower diagonal rod to finish the splicing of the arc-shaped space truss. By the method, a rod piece and a node can be accurately and safely spliced, so that the construction quality and efficiency of an assembly are greatly improved.

The invention relates to an elevator operation stability diagnose and maintenance method. The method comprises following steps: collecting a movement state of an elevator car in a real-time manner and generating corresponding real-time movement information; acquiring movement benchmark information of an elevator from a big data platform for elevator security based on the pre-saved elevator information of the elevator; comparing real-time movement information with real-time movement information; generating excessive alarm information for stability based on real-time movement information when real-time movement information does not correspond to movement benchmark information under comparisons; and sending excessive alarm information for stability to the big data platform for elevator security in order to store and send to an elevator maintenance unit such that the elevator maintenance unit can maintain the elevator based on the excessive alarm information for stability.The invention further provides an elevator operation stability diagnose and maintenance system.

The invention provides a system and method for reducing NOx generated by combustion of a W flame boiler. The system is simple in structure, rational in design, and safe and controllable in operation,and the concentration of the NOx generated by combustion of a low volatile coal fired boiler can be reduced effectively. The system comprises a furnace, a burner arranged on the furnace, flue gas nozzles arranged at the arch part of the boiler and the lower furnace position separately, and a flue gas recirculation system; the flue gas recirculation system comprises a high temperature flue gas mixing inlet pipeline, a flue gas fan and a high temperature flue gas outlet main pipeline which are connected in sequence according to the flue gas flow direction; the input end of the high temperature flue gas mixing inlet pipeline is separately connected with different positions of a tail flue of the furnace for pumping out high temperature flue gas; and the output end of the high temperature fluegas outlet main pipeline is connected with the burner and the flue gas nozzles, and used for introducing high temperature flue gas into the furnace circularly. Through strengthening of preliminary burning of low volatile coal, the oxygen quantity of the preliminary stage of pulverized coal combustion is reduced, and the formation of a local high temperature area of the furnace is inhibited; and the purpose of controlling and reducing the NOx generated by combustion is achieved.

The invention belongs to the technical field of wind power generation, and relates to a control method and system for improving the wind energy utilization rate of a wind turbine generator. According to the control method and system, a blade which is determined to have a blade clamping fault is subjected to variable pitch driver resetting, a variable pitch driver is restarted before the blade clamping fault is not eliminated, and is not directly restarted, so that the unnecessary restarting frequency of the variable pitch driver is reduced, the aging speed of the system is reduced, and the utilization rate of wind energy is improved. According to the control method and system, a delay blade clamping fault factor is further introduced, the probability of occurrence of the blade clamping fault in the future is expected according to the variable pitch state information of the current time period, the variable pitch driver does not need to be directly restarted, the restarting frequency is further reduced, and the wind energy utilization rate is improved.