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35 results about "Accident environment" patented technology
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Apparatus and method for reconstructing scene of traffic accident
Disclosed are an apparatus and method for reconstructing the scene of a traffic accident. The apparatus includes an information collection unit for receiving images and sounds of a scene of a traffic accident and a stationary object and a moving object located around the scene. A stationary object reconstruction unit reconstructs a 3D shape of the stationary object, and constructs a 3D accident environment. A moving object reconstruction unit aligns the images in time, detecting motions of the moving object from the aligned images, and combines the detected motions of the moving object into the 3D accident environment including the reconstructed stationary object according to times. A reproduction unit reproduces the scene of the traffic accident at corresponding time based on results of combination in response to a time-based playback request, the scene of the traffic accident being reproduced so that the 3D moving object is moved.
Owner:ELECTRONICS & TELECOMM RES INST
estimation method for a critical accident environment release source item of MOX fuel
The invention provides an estimation method for a critical accident environment release source item of MOX fuel. The method comprises the following steps: (1) determining the total number of fissures;(2) determining the release of aerosol; (3) determining the release of inert gas and radioactive iodine; (4) determining the influence of ventilation and exhaust equipment and purification measures;And (5) calculating the critical accident radiation quantity. The method provided by the invention can estimate the critical accident release amount of the MOX fuel.
Owner:CHINA INST FOR RADIATION PROTECTION
Semi-quantitative risk analysis method for gas pipeline industry based on risk matrix
A semi-quantitative risk analysis method for the gas pipeline industry based on a risk matrix includes the following steps: (1) determining accident probability grades of the risk matrix; (2) determining seriousness grades for personal loss consequences of accidents; (3) determining seriousness grades for environmental loss consequences of the accidents; (4) determining seriousness grades for property loss consequences of the accidents; (5) determining seriousness grades for reputation effect consequences of the accidents; (6) determining accident consequence seriousness grades of the risk matrix; (7) determining accident scenario risk grades; (8) achieving corresponding functions of the risk matrix through relevant software. The semi-quantitative risk analysis method provided by the invention includes five sub-modules: an information acquisition and input module, an accident probability module, an accident consequence seriousness module, a risk grade judging module, and a risk result output module; each sub-module is provided with specific and detailed computation and assessment methods, so that accident scenario risks can be specifically and strictly defined.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Nuclear and radiation emergency robot system
InactiveCN105234920AReduce the degree of nuclear radiation pollutionStable structureGripping headsRobotic systemsAccident environment
The invention relates to the field of nuclear industry robots, and discloses a nuclear and radiation emergency robot system which comprises a control computer (2), a wireless communication device (3) and an emergency robot (7). The control computer (2) is connected with the emergency robot (7) through the wireless communication device (3), the control computer (2) is used for controlling the emergency robot (7) to operate, and the emergency robot (7) is used for monitoring accident environment information, sending the accident environment information to the control computer (2) and handling nuclear accidents. The nuclear and radiation emergency robot system has the advantages of being capable of monitoring radiation environment information in real time, monitoring accident pictures in real time and handling nuclear accidents, resistant to radiation and reliable in structure.
Owner:ZHEJIANG HEXIN MONITORING TECH
Image collection device for vehicle insurance loss assessment
InactiveCN106791307AShoot accuratelyExpand the shooting rangeTelevision system detailsFinanceAccidents vehicleHydraulic pump
The invention discloses an image collection device for vehicle insurance loss assessment. The image collection device comprises a base, a hydraulic pump, a first connecting rod, a first camera and pulleys, at least four pulleys are provided and the pulleys are respectively arranged on a lower surface of the base, the hydraulic pump is fixed to an upper surface of the base, the first connecting rod is vertically arranged, and a lower end of the first connecting rod is connected with a piston rod on the hydraulic pump, the piston rod can drive the first connecting rod to ascend and descend, the first camera is arranged at an upper end of the first connecting rod, and the first camera can rotate along a horizontal plane direction with the first connecting rod as the center shaft. The image collection device overcomes the following problem in the prior at: an insurance surveyor directly uses a mobile phone or a camera to shoot the damaged sites of an accident vehicle, due to the uncertainty of the accident environment and the damaged positions of the accident vehicle, the insurance surveyor cannot be comprehensively and accurately obtain the images of the damaged sites, thereby affecting the loss assessment result.
Owner:保腾网络科技有限公司
Structural material ultra-high temperature corrosion experiment system and method under serious accident of nuclear reactor
ActiveCN110553974AReduce space consumptionGuaranteed tightnessWeather/light/corrosion resistanceMaterial analysis by electric/magnetic meansContinuous measurementCorrosion reaction
Owner:XI AN JIAOTONG UNIV
Nuclear class-1 equipment performance test system and method
ActiveCN102054537AGuaranteed temperatureGuaranteed pressureNuclear energy generationNuclear monitoringInternational standardPressurized water reactor
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +1
Test device for containment heat passive export system
The invention discloses a test device for a containment heat passive export system. The test device for a containment heat passive export system includes: a containment simulator; a compressed air supply system and a helium supply system that are connected to the containment simulator; a steam supply system, which is in connection with the containment simulator; a heat exchange tube test piece, which is disposed in the containment simulator; a forced circulation loop, which is connected to the heat exchange tube test piece to form dynamic heat export circulation; a natural circulation loop, which is connected to the heat exchange tube test piece to form passive heat export circulation, with the forced circulation loop and the natural circulation loop working selectively; and a data acquisition system, which is used for collecting parameters inside the containment simulator. The test device for the containment heat passive export system provided by the invention can simulate the accident environment of the containment heat passive export system so as to facilitate the study on the performance of the containment heat passive export system.
Owner:STATE POWER INVESTMENT CORP RES INST
Device and method for measuring temperature and radioactive rays with fiber bragg grating (FBG) sensors
InactiveCN103808428AQuickly find out the cause of the accidentAvoid elevationPower plant safety arrangementRadiation pyrometryGratingAccident environment
The invention relates to a device and a method for measuring temperature and radioactive rays with fiber bragg grating (FBG) sensors. The invention relates to a technology that accurate measurement can be carried out by covering a hollow radioactive ray shielding member on a sensor with two FBG sensors to separate the radioactive ray values and temperature values obtained from the two sensors. According to the invention, no matter in a nuclear station in a normal state or an apparatus generating the radioactive rays, the device can be used as a commonly used sensor system for measuring temperature and radioactive ray quantity, and also realizes commercialization. When a nuclear accident happens, the device also can be used as a sensor system which can remotely measure the temperature and radioactive ray radiation quantities that play critical facts for mastering inner information of accident environment by means of a fiber circuit.
Owner:KOREA ATOMIC ENERGY RES INST +1
Intelligent evacuation guidance system based on game theory and ant colony algorithm and use method thereof
PendingCN109035119AAchieve global optimizationReal-time grasp of instant changesData processing applicationsArtificial lifeTime informationGuidance system
The invention provides an intelligent evacuation inducing system based on game theory and ant colony algorithm and a use method thereof. The intelligent evacuation inducing system comprises a management center end, a server end, a center gateway end, a fixed sensor end and a user end. The management center end is connected with the server end through Ethernet, the server end is connected with thecenter gateway end, and the center gateway end is connected with the fixed sensor end and the user end respectively. It can collect real-time information of accident environment state in evacuation area, locate and move information of evacuees and upload it to database server, which is helpful for application server to grasp real-time change of evacuees distribution state and analyze available degree and congestion degree of each evacuation channel in real-time. It is of great application value to develop a large-scale evacuation route optimization algorithm, to use watch terminals to intelligently guide the evacuation of large-scale clusters in real time, to realize the wireless flexible arrangement and movement of evacuation guidance equipment, and to overcome the noise and interferenceproblems in voice guidance or light guidance, so as to realize the intelligent guidance of large-scale clusters.
Owner:NORTHEASTERN UNIV LIAONING
Power distribution room fire emergency repair method and system based on augmented reality technology
A power distribution room fire emergency repair method and system based on augmented reality technology are disclosed, based on a hybrid augmented virtual scene, in combination with a current emergency place equipment operation state and on-site real-time data acquired by an emergency robot, levels, association and other situations between equipment can be clear in a fire hazard. By comparing historical equipment operation data of the scene, reasoning and judging reasons and influences of current dangerous cases and giving emergency rescue strategies and prompts according to rescue knowledge in a system library, guidance is provided for emergency rescue operation, and rapid emergency repair response of emergency accidents in an electric power equipment accident environment is achieved.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
Device and method for measuring temperature and radiation with fiber Bragg grating sensor
InactiveCN103808428BQuickly find out the cause of the accidentAvoid elevationPower plant safety arrangementRadiation pyrometryGratingAccident environment
The invention relates to a device and a method for measuring temperature and radioactive rays with fiber bragg grating (FBG) sensors. The invention relates to a technology that accurate measurement can be carried out by covering a hollow radioactive ray shielding member on a sensor with two FBG sensors to separate the radioactive ray values and temperature values obtained from the two sensors. According to the invention, no matter in a nuclear station in a normal state or an apparatus generating the radioactive rays, the device can be used as a commonly used sensor system for measuring temperature and radioactive ray quantity, and also realizes commercialization. When a nuclear accident happens, the device also can be used as a sensor system which can remotely measure the temperature and radioactive ray radiation quantities that play critical facts for mastering inner information of accident environment by means of a fiber circuit.
Owner:KOREA ATOMIC ENERGY RES INST +1
Autonomous navigation method of mobile robot in complex nuclear accident environment
ActiveCN113485346AQuick calculationWell representedPosition/course control in two dimensionsVehiclesPoint cloudNuclear technology
The invention discloses an autonomous navigation method of a mobile robot in a complex nuclear accident environment, and relates to the field of nuclear engineering and nuclear technology. The method comprises the following steps of: processing and rasterizing a radiation field distribution map to obtain a radiation cost map; processing an environment point cloud map, projecting the environment point cloud map into a grayscale image, and processing the grayscale image to obtain an image gradient and a gradient cost map; superposing the radiation cost map and the gradient cost map to obtain a multi-layer cost map; according to the environment point cloud map and the current radar data, carrying out positioning by using a Scan Context algorithm to obtain the position of a robot in the environment; and planning a reasonable path by using an improved A * algorithm according to the multi-layer cost map and the positioning information, so as to enable the robot to reach a target position. According to the method, various factors can be considered at the same time in a complex nuclear accident environment, a safe and efficient path is planned for the robot, and safe and reliable autonomous navigation is realized.
Owner:SHANGHAI JIAO TONG UNIV
Pollution accident environment emergency digital plan model method
InactiveCN110991052ARealize processFully automatedDesign optimisation/simulationResourcesTime informationAccident environment
The invention provides a pollution accident environment emergency digital plan model method. By utilizing a computer technology and a network technology, according to the disposal process of an emergency, on the basis of event development real-time information, commanders are helped to form a comprehensive, specific, highly-targeted, intuitive and efficient action scheme, so that the formulation and execution of the scheme reach a standardized and visualized level, and the procedure-based operation and automation of emergency management work are realized.
Owner:NANJING UNIV
Test system and test method for performance evaluation in active equipment in accident environment
ActiveCN111627577AGuaranteed ability to activate auxiliary safety systemsAbility to activate auxiliary safety systemsNuclear energy generationNuclear monitoringControl engineeringAccident environment
The invention discloses a test system and a test method for performance evaluation of active equipment in an accident environment. The system comprises the active equipment arranged in an environmentbox, the environment box is used for simulating the environment working condition in a water loss accident environment, the system further comprises a main loop and a switching loop, the main loop, the switching loop and the active equipment are connected in series, the main loop is used for simulating loop pressure difference and temperature difference, and the switching loop is used for detecting the action switching capacity of the active equipment. After the water loss accident environment is established in the environment box, the standby active equipment overcomes the loop pressure difference and the temperature difference, starts to work and stably operates, verifies the pressure difference starting and stable operation capacity of safety-related active equipment under the environment working condition, and guarantees the capacity of starting an auxiliary safety system; through the switching loop, the switching action capability of the active equipment can be tested, and whetherthe auxiliary safety system works normally or not to prevent the reactor core from melting after a water loss accident is verified.
Owner:NUCLEAR POWER INSTITUTE OF CHINA
A coal mine accident environment monitoring and rescue system
InactiveCN106246218BAvoid harmImprove rescue effectMining devicesSafety equipmentsAccident environmentCoal
The invention relates to a coal mine accident environment monitoring and rescuing system which comprises a rescue car. The rescue car is provided with a monitoring unit and an alarm unit, wherein the monitoring unit comprises a camera, and the alarm unit comprises an alarm. The rescue car comprises a car body; car windows and car doors are arranged on the side faces of the car body; wheels are arranged at the bottom of the car body, and comprise front wheels and rear wheels; the number of the front wheels is two; a front axle is connected between the two front wheels; the front axle is connected with the bottom of the car body through a front suspension; the number of the rear wheels is two; a rear axle is connected between the two rear wheels; the rear axle is connected with the bottom of the car body through a rear suspension; and a gasbag is arranged on the top of the car body. The coal mine accident environment monitoring and rescuing system is high in rescue efficiency and good in rescue effect, avoids injuries to rescue workers, improves the automatic degree, and meets the demand of practical conditions.
Owner:HEILONGJIANG UNIV OF TECH
Coaxial cable for nuclear power station
ActiveCN107204215AGuaranteed irradiationWarranty requirementsPlastic/resin/waxes insulatorsConcentric cablesPoly ether ether ketonePolyolefin
The invention relates to the field of a cable, and particularly to a coaxial cable for a nuclear power station. The cable comprises a conductor. A first insulating layer, a second insulating layer, a first woven shielding layer, a first inner sheath, a second woven shielding layer, a second inner sheath, a metal corrugated pipe and an outer sheath successively wrap the external surface of the conductor. The first insulating layer is made of a thin-wall extruded poly-ether-ether-ketone modified cable insulating material. The second insulating layer is made of radiating crosslinked polyolefin. The thickness ratio between the first insulating layer and the second insulating layer is 1:3-20. The coaxial cable satisfies a requirement for signal transmission among a reactor workshop neutron detector and a junction box and a through member and among an auxiliary workshop through member and a pre-amplifier and a signal processing cabinet in a Chinese third-generation nuclear power plant instrument system. Furthermore the coaxial cable satisfies a requirement for executing a safe function in a designed reference accident environment condition of the third-generation nuclear power plant.
Owner:CHANGZHOU BAYI CABLE
Coal mine accident environment monitoring and rescuing system
InactiveCN106246218AAvoid harmImprove rescue effectMining devicesSafety equipmentsAccident environmentCoal
The invention relates to a coal mine accident environment monitoring and rescuing system which comprises a rescue car. The rescue car is provided with a monitoring unit and an alarm unit, wherein the monitoring unit comprises a camera, and the alarm unit comprises an alarm. The rescue car comprises a car body; car windows and car doors are arranged on the side faces of the car body; wheels are arranged at the bottom of the car body, and comprise front wheels and rear wheels; the number of the front wheels is two; a front axle is connected between the two front wheels; the front axle is connected with the bottom of the car body through a front suspension; the number of the rear wheels is two; a rear axle is connected between the two rear wheels; the rear axle is connected with the bottom of the car body through a rear suspension; and a gasbag is arranged on the top of the car body. The coal mine accident environment monitoring and rescuing system is high in rescue efficiency and good in rescue effect, avoids injuries to rescue workers, improves the automatic degree, and meets the demand of practical conditions.
Owner:HEILONGJIANG UNIV OF TECH
Self-heating device thermal shock water entry accident scene simulation test device and test method
ActiveCN112362375AScene simulation realRich in detailStructural/machines measurementEngineeringWater entry
The invention discloses a self-heating device thermal shock water entry accident scene simulation test device and test method, which can complete various test types such as a thermal shock test, a thermal shock water entry test, a seawater simulation test, a seabed long-term storage state environment adaptability assessment test, a seabed vibration environment adaptability assessment test and thelike. The experiment types can comprehensively simulate various accident environment loads of the self-heating device in launching and falling accident scenes, an analysis tool can be provided for product state response of the self-heating device from a dynamic scene to a deep sea storage scene, and technical support is provided for accident environment adaptability evaluation, improved design andthe like of products. The test piece launching device is used for simulating a scene when the test piece falls into seawater, can simulate the water entry angle of the test piece and can also simulate the water entry speed of the test piece, and compared with the traditional technology, the scene simulation is more real, and the detail consideration is richer.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
Nuclear class-1 equipment performance test system and method
ActiveCN102054537BGuaranteed temperatureGuaranteed pressureNuclear energy generationNuclear monitoringInternational standardPressurized water reactor
The invention provides a nuclear class-1 equipment performance test method and a nuclear class-1 equipment performance test system, which can test the performance of third-generation and second-generation pressurized water reactor power plant nuclear class-1 equipment under the conditions of the in-accident and after-accident environments in a safety shell, ensure the realization of the temperature and pressure control precision in a preset time period in a thermal shock period and obtain the parameters meeting the requirements of international standards on the test of the performance of third-generation and second-generation pressurized water reactor power plant nuclear class-1 equipment under the conditions of the in-accident and after-accident environments in the safety shell.
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +1
Power distribution room emergency robot first-aid repair decision-making method
PendingCN113077161AReduce the degree of lossQuick repair responseResourcesSystems intergating technologiesEmergency rescueElectric power equipment
A power distribution room emergency robot first-aid repair decision-making method comprises the steps that field real-time data are obtained through an emergency robot sensor, an analytic hierarchy process is adopted, a priority order of first-aid repair equipment is calculated according to a given criterion index so as to make a first-aid scheme, and first-aid knowledge in a system library and historical equipment operation data in the scene are utilized to give emergency rescue strategies and prompts, augmented information superposition is carried out based on the augmented reality technology, guidance is provided for emergency rescue operation, interactive emergency repair is completed, emergency rapid emergency repair response under the power equipment accident environment is achieved, and the loss degree of the power equipment in the emergency repair process is reduced to the minimum degree to the maximum degree.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
High-entropy alloy film for accident fault-tolerant nuclear fuel cladding and preparation method of high-entropy alloy film
PendingCN114107907AEasy to adjustImproved resistance to high temperature water vapor oxidationVacuum evaporation coatingSputtering coatingHigh entropy alloysZirconium alloy
The invention discloses a high-entropy alloy film for an accident fault-tolerant nuclear fuel cladding and a preparation method of the high-entropy alloy film, and the method sequentially comprises the steps of grinding and polishing, cleaning and blow-drying, vacuum pressure reduction, sputtering deposition and the like, so that the high-entropy alloy film with an amorphous structure is formed in a magnetron sputtering mode. According to the method, the influence of different contents of different elements on the accident fault tolerance performance of the coating can be researched, meanwhile, the film prepared through the method is high in integrity and compactness, the high-temperature water vapor oxidation resistance of the zirconium alloy substrate in the nuclear reactor accident environment is effectively improved, and the service life of the zirconium alloy substrate is prolonged. And the method can effectively reduce the manufacturing process complexity and the production cost of the accident fault-tolerant nuclear fuel cladding.
Owner:JIANGSU UNIV OF SCI & TECH
Public emergency evacuation path optimization method under nuclear accident
ActiveCN113673790AOvercoming the disadvantages of the same attractionImprove search efficiencyForecastingInformation processingDoses rate
The invention relates to an information processing technology, and provides a public emergency evacuation path optimization method under a nuclear accident. The method comprises the steps: determining the range of an emergency planning area, gridding the emergency planning area, determining a nuclear accident environment release source item, and acquiring wind field data in the emergency planning area; calculating each radionuclide activity concentration of each grid in the emergency planning area according to the accident source item and the wind field data, and evaluating a radiation dose rate in the emergency planning area; determining public emergency evacuation path road nodes according to an emergency planning area road network, and the connection relation and attribute information between the nodes, and forming an evacuation network; according to the grids to which the starting points and the ending points of the evacuation paths belong, obtaining all evacuation path sets with relatively low public radiation dose rates based on an improved chaos ant colony algorithm; and performing multi-objective decision optimization according to the evacuation time and the radiation deterministic effect of each path in all the evacuation path sets to determine an optimal path. The method provides an important basis for the formulation of a nuclear emergency plan.
Owner:SOUTH CHINA UNIV OF TECH
A mobile robot positioning and mapping method in dangerous chemical accidents
ActiveCN109781092BNavigational calculation instrumentsSimultaneous localization and mappingAccident environment
The invention discloses a positioning and mapping method for a dangerous chemical accident environment by a mobile robot. The method is applied to a search and rescue mobile robot, positioning and mapping can be carried out on a complex dangerous chemical accident site, the illumination and smoke influence caused by dangerous chemical explosion and the like is weakened to a certain extent, and therobustness and precision of positioning and mapping under the accident occurrence condition are improved. The core of the method is that a space-time Markov random field method is used for carrying out image defogging processing; a stable monocular vision SLAM (Simultaneous Localization and Mapping) method based on a feature point method is adopted to fuse IMU sensor data to position and map a dangerous chemical accident by the mobile robot, and the environment exploration capability of the robot under the dangerous chemical accident condition is further improved.
Owner:BEIJING UNIV OF CHEM TECH
Test system and test method for performance evaluation of active equipment in accident environment
ActiveCN111627577BGuaranteed ability to activate auxiliary safety systemsAbility to activate auxiliary safety systemsNuclear energy generationNuclear monitoringControl engineeringAccident environment
The invention discloses a test system and a test method for performance evaluation of active equipment in an accident environment. loop, the main loop, switching loop, and active equipment are connected in series, the main loop is used to simulate the pressure difference and temperature difference of the loop, and the switching loop is used to detect the action switching capability of the active equipment. After the loss of water accident environment is established in the environmental chamber, the active equipment that has been on standby overcomes the pressure difference and temperature difference of the circuit to start work and run stably, and verify the safety-related active equipment. Ensure the ability to start the auxiliary safety system; through the switching circuit, the switching action capability of the active equipment can be tested to verify whether the auxiliary safety system is working normally after the loss of water accident to prevent the core from melting.
Owner:NUCLEAR POWER INSTITUTE OF CHINA
Anti-vibration anti-loosening environment-resistant connector and cable assembly thereof
PendingCN113193435AAchieve fixationAvoid installation formCouplings bases/casesTwo-part coupling devicesCantilevered beamNatural disaster
The invention relates to an anti-vibration anti-loosening environment-resistant connector and a cable assembly thereof, the anti-vibration anti-loosening environment-resistant connector comprises a plug and a socket, the plug is installed on a floating support, and the socket is installed on a fixed support; the floating support comprises a base and an upper pressing plate which are detachably connected, a rubber pad is further arranged in a circular ring formed by the base and the upper pressing plate, and the plug is fastened in the circular ring formed by the upper pressing plate and the base to form a flexible supporting structure; and a fixed square plate is arranged on the fixed support, a mounting panel is arranged on the socket, and the mounting panel is fixedly connected with the fixed square plate, so that the socket is mounted on the fixed support, and a rigid fixed structure is formed. According to the invention, the connector body is directly arranged on the corollary equipment by adopting the fixed support and the floating support, so that a cantilever beam structure is avoided, and the anti-vibration and anti-loosening performance of the connector is improved; in addition, the connector adopts complementation of multiple sealing forms, sealing redundancy design is carried out, the overall environment resistance of the connector is improved, and the connector can tolerate extremely harsh working condition environments and severe accident environments caused by natural disasters.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD +1
Scenario simulation test device and test method for self-heating device thermal shock into water accident
ActiveCN112362375BScene simulation realRich in detailStructural/machines measurementWater entryMechanical engineering
The invention discloses a thermal shock water entry accident scene simulation test device and a test method of a self-heating device, which can complete thermal shock test, thermal shock water entry test, seawater simulation test, environmental adaptability assessment test of long-term storage state on the seabed and seabed vibration environment adaptation Various test types such as performance assessment test, the above test types can comprehensively simulate various accident environmental loads of self-heating devices in launch and crash scenarios, and can be used for self-heating devices from dynamic scenarios to deep-sea storage scenarios. It provides analysis tools for the product status response of the product, and provides technical support for the product's accident environment adaptability assessment, improvement design, etc. The test piece launching device of this application simulates the scene simulation of the test piece falling into the seawater, and can simulate the test piece falling into the water. Compared with the traditional technology, the scene simulation is more realistic and the details are more abundant.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
Coaxial cable for nuclear power plant
ActiveCN107204215BImprove sealingSolve the following technical difficultiesPlastic/resin/waxes insulatorsConcentric cablesPoly ether ether ketonePolyolefin
Owner:CHANGZHOU BAYI CABLE
An environmental simulation test device and method for a high-energy pipeline rupture accident in a nuclear power plant
ActiveCN104269196BThe volume of the test chamber is largeMeet the needs of large-scale equipment testingNuclear energy generationNuclear monitoringHigh energyAccident environment
Owner:SHANGHAI POWER EQUIP RES INST
Novel self-heating product anti-accident packing container inner container structure
InactiveCN106428957AIntact structureWell-sealed structureRemovable lids/coversSealingThermal deformationAccident environment
The invention discloses a novel self-heating product anti-accident packing container inner container structure. As the design ideals of high strength and high rigidity are adopted, after a packing container is suffered from such accident environments as falling, a main structure of an inner container and a sealing structure are in good condition without leaking harmful materials; the inner container is positioned in a buffer part on overall structure to reduce the size of the sealing structure; the inner container adopts the design concepts of high strength and high rigidity to guarantee reliability of the sealing structure under accident environments; under the precondition of guaranteeing the strength and the rigidity, a reinforcing rib structure is adopted to relieve the weight of the inner container as far as possible; the high-temperature influence is eliminated to adopt the following measures: an upper cover cutter edge, a base cutter edge and a metal gasket mutually extrude for installation to realize high-temperature sealing; a specific disc-shaped spring is provided for eliminating the influence caused by thermal deformation to realize stable and reliable sealing; and a layer of high-temperature lubricant is coated on a thread for preventing the blockage phenomenon of contacted surfaces between a screw and a base screw hole by the effects of high-temperature thermal expansion and heat erosion.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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