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Method for decoupling organic matter primary-secondary cracking hydrocarbon generation conversion rate based on gold tube hydrocarbon generation thermal simulation experiment
The invention relates to a method for decoupling organic matter primary-secondary cracking hydrocarbon generation conversion rate based on a gold tube hydrocarbon generation thermal simulation experiment. The method comprises the following steps: step 1, acquiring kerogen gold tube hydrocarbon generation thermal simulation experiment data; step 2, parametric modeling of the kerogen hydrocarbon generation process; step 3, constructing a least square target model under a multi-constraint condition; step 4, performing nonlinear least square optimization solution under the constraint condition; and 5, calculating the hydrocarbon generation conversion rate. According to the method, conversion rate calculation is carried out on the cumulant of each hydrocarbon generation process obtained through decoupling, the conversion rate evolution rule of the kerogen oil generation, gas generation, crude oil cracking gas generation, non-reactive carbon formation and other processes along with maturity change in the crude oil cracking process can be obtained, and a quantitative basis is provided for refined hydrocarbon generation evaluation.
Owner:SANYA MARINE OIL & GAS RESEARCH INSTITUTE NORTHEAST PETROLEUM UNIVERSITY
Method for decoupling organic matter primary-secondary cracking hydrocarbon generation conversion rate based on gold tube hydrocarbon generation thermal simulation-solid product pyrolysis experiment
The invention relates to a method for decoupling organic matter primary-secondary cracking hydrocarbon generation conversion rate based on gold tube hydrocarbon generation thermal simulation-solid product pyrolysis experiment. The method comprises the following steps: step 1, kerogen gold tube hydrocarbon generation simulation and solid product rock pyrolysis experiment data acquisition; step 2, parametric modeling of the kerogen hydrocarbon generation process; step 3, constructing a least square model of multi-source experimental information collaborative constraint; 4, carrying out optimization solution under a multi-source experiment information collaborative constraint condition; and 5, calculating the hydrocarbon generation conversion rate. According to the method, conversion rate evolution characteristics of each hydrocarbon generation process are quantitatively represented, conversion rate calculation is performed on cumulant of each hydrocarbon generation process obtained through decoupling, and conversion rate evolution rules of kerogen oil generation, kerogen gas generation, crude oil cracking gas generation, non-reactive carbon formation and other processes along with maturity changes in the crude oil cracking process can be obtained; and a quantitative basis is provided for refined hydrocarbon generation evaluation.
Owner:SANYA MARINE OIL & GAS RESEARCH INSTITUTE NORTHEAST PETROLEUM UNIVERSITY
Rock core seepage heat exchange dynamic coupling simulation system based on outlet temperature feedback
PendingCN122016606AMaterial thermal analysisPermeability/surface area analysisTemperature controlControl system
The invention relates to a rock core seepage heat exchange dynamic coupling simulation system based on outlet temperature feedback. The system comprises a multi-medium precise injection system, a gradient temperature control rock core clamping system, an outlet multi-dimensional information sensing system, a dynamic coupling central control system and a pressure compensation and circulation backflow system. The central control system receives feedback signals of the outlet end and adjusts injection power and an axial gradient temperature control area in real time, and deep dynamic coupling of a seepage field, a temperature field and a stress field is achieved. The problems that a traditional experiment is constant in injection temperature and lacks outlet feedback are solved, real stratum temperature scale distribution can be accurately reconstructed, the physical fidelity and data reliability of a heat exchange coupling experiment are remarkably improved, and an advanced experiment supporting platform is provided for basic mechanism research in the field of energy development.
Owner:YUNCHENG POLYTECHNIC COLLEGE +1
Multifunctional asphalt mixture rut test method
PendingCN121499267AWeather/light/corrosion resistanceUsing mechanical meansDriving testTemperature control
The invention discloses a multifunctional asphalt mixture rut test method which is implemented by using a device integrating loading and measurement, test piece supporting and temperature control drainage, environment simulation and optical measurement and a central control and data acquisition system. A test piece is arranged in the test piece groove, temperature control is realized through circulating a heat-conducting medium in the temperature-conducting cavity, different gradients are formed through the hoisting mechanism and the angle adjusting assembly, the test wheel is driven to perform one-way circulating loading along a closed track and snub at a preset moment, and rolling and sliding friction forces are synchronously collected; in the test process, rainfall is simulated by adopting the watering assembly, incoming water is recycled by the drainage tank, speckle images are acquired by the high-frequency industrial camera, and surface full-field displacement and strain are obtained through digital image correlation analysis. Through time registration and fusion of temperature, gradient, wheel speed, rainfall and friction-deformation data, rut deformation, skid resistance and apparent structure evolution laws of the asphalt mixture under multi-climate and multi-gradient conditions are obtained.
Owner:YUNNAN TRAFFIC PLANNING DESIGN RESEARCH INSTITUTE CO LTD
Evaluation system for salt freezing resistance durability of composite green concrete in soil environment of frozen soil region
PendingCN121385015AWeather/light/corrosion resistanceMaterial thermal analysisFreeze thawingData set
The invention relates to the technical field of concrete durability evaluation, in particular to a compound green concrete salt freezing resistance durability evaluation system under a frozen soil environment, which comprises a data input unit, a decision information table storage unit, a rough set analysis processing unit and an evaluation output unit, the data input unit receives a sample data set containing freeze-thaw cycle times, dry-wet cycle times, freeze-thaw-dry-wet cycle times, long-term soaking time, composite salt concentration, gas content and fly ash mixing amount, and the decision information table storage unit stores a decision information table constructed based on a rough set theory. The influence factor combination and the relative dynamic elastic modulus percentage are associated, the rough set analysis processing unit establishes a mapping relation through attribute reduction and rule extraction and quantifies the weight of each factor, and the evaluation output unit outputs a relative dynamic elastic modulus predicted value, durability grade classification and key factor contribution sorting. And the salt freezing resistance durability of the concrete under the multi-factor coupling effect is accurately evaluated.
Owner:JILIN ELECTRIC POWER SURVEY & DESIGN INST
Integrated nano platform for bimodal detection and synergistic sterilization of pathogenic bacteria as well as preparation method and application of integrated nano platform
PendingCN121720929AMaterial analysis by observing effect on chemical indicatorLavatory sanitoryBiofilmFood safety
The invention discloses an integrated nano platform for bimodal detection and synergistic sterilization of pathogenic bacteria as well as a preparation method and application of the integrated nano platform, and belongs to the technical field of food safety. The platform is composed of a multifunctional nano probe (MPDA / Pd SA-DA-CDs / Apt) and a magnetic separation assembly (MNRs / PGA / AM). The probe integrates enzyme-like catalysis and photo-thermal performance and is used for generating colorimetric and photo-thermal dual-mode signals so as to realize high-sensitivity and high-reliability detection of pathogenic bacteria. The magnetic separation assembly is used for specifically capturing and enriching target bacteria and eliminating matrix interference. After detection is positive, the platform can immediately start secondary propulsion synergistic sterilization: firstly, the action distance is shortened through magnetic aggregation, and then pathogenic bacteria are efficiently inactivated and biological membranes are disintegrated by utilizing the synergistic effect of near-infrared laser excitation photothermal effect and active oxygen. According to the invention, the integration of detection and disinfection is realized, the operation is convenient, and the method has important application value in the fields of food safety and biomedicine.
Owner:GUANGDONG INST OF MICROBIOLOGY GUANGDONG DETECTION CENT OF MICROBIOLOGY +1
Self-reaction substance drying process safety evaluation and grading method based on thermal analysis kinetics
The invention discloses a self-reaction substance drying process safety assessment and classification method based on thermal analysis kinetics. The method comprises the following steps: performing a multi-heating-rate programmed heating test on a self-reaction substance under a closed condition by adopting DSC to obtain an exothermic initial temperature, a peak temperature and a specific exothermic quantity, constructing a thermal decomposition kinetic model based on the obtained data, and solving kinetic parameters such as apparent activation energy and pre-exponential factors; combining an energy conservation equation and a thermal explosion theory, predicting a self-accelerated decomposition temperature SADT under an adiabatic condition TD24 and a given filling and heat dissipation condition, determining a temperature safety threshold value of a drying process according to the SADT, and dividing a working condition safety interval; further introducing three dimensionless safety factors including a temperature safety margin, a time safety margin and a thermal explosion margin, constructing a comprehensive risk index, and carrying out risk grade division on the drying working condition. The method provided by the invention has the advantages of low sample consumption, simple test conditions and standardized calculation process, can quantitatively evaluate the safety drying temperature upper limit of different self-reaction substances and under different process conditions, and provides a reliable basis for drying process design and safety control of the self-reaction substances.
Owner:NANJING UNIV OF SCI & TECH
System and method for testing moisture content and permeability based on electromagnetic waves and infrared rays
The invention provides a rock-soil moisture content and permeability testing system and method based on electromagnetic waves and infrared rays, and particularly relates to the technical field of geotechnical engineering testing and multi-source signal detection. According to the test system, construction of a rock-soil permeability experiment is realized through a rock-soil sample permeability test platform, the electromagnetic wave detection module realizes perception of a water-containing state in rock-soil, and the infrared thermal imaging module realizes perception of a wet boundary and seepage expansion characteristics of a rock-soil surface. The data acquisition and control module realizes integral control of a penetration experiment and acquisition of dielectric characteristics and infrared images, the signal fusion and inversion module realizes fusion of the dielectric characteristics and the infrared images and joint inversion of dynamic moisture content and penetration performance, and the result processing and visualization module realizes visual display of an inversion result; the method has the remarkable advantages of non-destructiveness, real-time performance, high spatial resolution, high adaptability, intelligent processing capacity and the like, and comprehensive characterization of the permeability behavior and the moisture content evolution process of the rock and soil sample is achieved.
Owner:SHAANXI DINGRUICHENG GEOTECHNICAL ENG CO LTD
Mars probe temperature monitoring method and system based on time control factor optimization
The invention belongs to the technical field of data processing, and discloses a Mars probe temperature monitoring method and system based on time control factor optimization, and the method comprises the steps: obtaining simulated fire soil, and carrying out the screening processing and dense state preparation processing, and obtaining a plurality of relatively dense state samples; performing simulated temperature monitoring on the plurality of samples in the relatively dense state to obtain a plurality of temperature-time curves, and performing piecewise linear fitting to obtain thermal response characteristics of the simulated fire soil; performing optimal monitoring time period analysis and optimal monitoring duration analysis according to the thermal response characteristics to obtain an optimal passive monitoring time window and duration strategy; and determining target to-be-monitored fire soil, and performing real temperature monitoring on the target to-be-monitored fire soil according to the optimal passive monitoring time window and the duration strategy to obtain an optimal temperature monitoring result. According to the invention, the temperature of the fire soil to be measured can be accurately monitored, so that the assessment precision of the passing ability of the Mars rover is effectively improved, and the driving safety of the Mars rover is ensured.
Owner:JILIN UNIVERSITY
Ultralow-temperature surface frosting testing device and testing method
Owner:LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
Container high and low temperature fatigue detection method, electronic equipment and medium
The invention relates to the technical field of container detection, in particular to a container high and low temperature fatigue detection method, electronic equipment and a medium, and the method comprises the steps: obtaining a first optimal fluid parameter and a second optimal fluid parameter based on a first preset strategy; obtaining a first data set and a second data set based on a measuring device arranged in the to-be-measured container; determining a first accumulative fatigue damage based on the first data set according to a first model, and determining a second accumulative fatigue damage based on the second data set according to a second model; based on the first accumulative fatigue damage and the second accumulative fatigue damage, total accumulative fatigue damage is determined.
Owner:CHONGQING SPECIAL EQUIP TESTING & RES INST (CHONGQING SPECIAL EQUIP ACCIDENT EMERGENCY INVESTIGATION & PROCESSING CENT)
High-temperature packer rubber cylinder test detection device and detection method
InactiveCN121475916AMaterial strength using tensile/compressive forcesFluid-tightness measurementStructural engineeringProcess engineering
The invention discloses a high-temperature packer rubber cylinder test detection device and method, and belongs to the technical field of packer rubber cylinder detection.The high-temperature packer rubber cylinder test detection device comprises a machine table, a C-shaped frame is vertically installed at the top of the machine table, an electric push rod is horizontally installed on the outer wall of the C-shaped frame in a penetrating mode, and a rectangular shell is vertically and fixedly installed at the output end of the electric push rod; the high-temperature packer rubber sleeve test detection device comprises a machine table, a C-shaped frame is arranged on the top of the machine table, a simulation sleeve vertically penetrates through the top of the machine table, a hydraulic rod vertically penetrates through the position, over the simulation sleeve, of the top of the C-shaped frame, and a pressurizing body is fixedly arranged at the output end of the hydraulic rod. Stubborn dirt and chippings can be thoroughly removed, interference of pollutants on detection data is avoided from the source, detection of indexes such as the temperature resistance and the sealing performance of the packer rubber sleeve better fits the actual working condition, and the data credibility is remarkably improved.
Owner:BAOJI BOFEIDE PETROLEUM TECH DEV CO LTD
Super-hydrophobic anti-icing coating for power transmission tower steel structure and coating test method
PendingCN121551247AMaterial analysis using wave/particle radiationPretreated surfacesTransmission towerData acquisition
The invention discloses a super-hydrophobic anti-icing coating for a power transmission tower steel structure and a coating test method, and belongs to the technical field of material engineering and surface protection. Comprising the steps of super-hydrophobic coating formula optimization, geometric self-adaptive spraying and curing, extreme environment simulation testing, multi-source data acquisition, failure mechanism analysis and prediction, performance optimization and prediction and the like, the thickness of the prepared coating is 0.15 + / -0.008 mm, the coating covers a Q235 steel base material with the surface roughness of 2.0 + / -0.15 microns, and the coating has the good corrosion resistance under the environment of-40 DEG C to 60 DEG C, the wind speed of 15 m / s and the humidity of 85% RH. The icing amount is less than or equal to 30g / m < 2 >, and the deicing efficiency is greater than or equal to 92 The technical problems that in the prior art, a coating is insufficient in hydrophobic performance and durability, a coating process is poor in adaptability on a complex geometric structure, test environment simulation is not real, and a systematic optimization and prediction model is lacked are solved.
Owner:CONSTR BRANCH OF STATE GRID JIANGSU ELECTRIC POWER CO LTD +2
Chitin-silicon-calcium-based modified material for repairing rammed earth wall and weather resistance evaluation method of chitin-silicon-calcium-based modified material
PendingCN121758096AWeather/light/corrosion resistancePreparing sample for investigationCalcium silicateFreeze thawing
The invention discloses a chitin-silicon-calcium-based modified material for rammed earth wall repair and a weather resistance evaluation method thereof, and belongs to the technical field of rammed earth wall repair, the chitin-silicon-calcium-based modified material comprises metakaolin, calcium oxide, quartz and chitin; the ratio of chitin to metakaolin to calcium oxide to quartz is 1: 1: 2: 4; the method comprises the following steps: pre-treating at the earlier stage of a test, evaluating freeze-thaw cycle performance, evaluating dry-wet cycle performance, evaluating salt corrosion resistance, analyzing association between a microstructure and a strength performance, and finally, revealing a material degradation rule and mechanism by combining scanning electron microscope observation, unconfined compressive strength test and crack rate analysis. When the freezing and thawing cycle number N is less than or equal to 5, the dry and wet cycle number I is less than or equal to 9, and the salt solution concentration c is less than or equal to 0.3 mol / L, the characteristics of freezing and thawing resistance, dry and wet resistance, salt erosion resistance and the like of the modified material are obviously improved; after the modified material is added, internal pores of plain soil can be filled, unconfined compressive strength of a soil body is enhanced, and long-term durability of the soil body is improved.
Owner:XIAN MUNICIPAL PUBLIC CONSTR INVESTMENT GRP CO LTD +1
Coal mine geothermal-based water temperature monitoring and extraction simulation device
ActiveCN121595840BGeothermal energy generationEarth material testingMining engineeringMechanical engineering
The application provides a water temperature monitoring and extraction simulation device based on coal mine geothermal energy, and belongs to the technical field of geothermal energy. The device comprises a tank body, an inner cavity is arranged in the tank body, three isolation plates are fixedly connected in the inner cavity, the inner cavity is divided into three cavities by the isolation plates, a placing box with an open top is arranged in each cavity, prefabricated samples are placed in the placing boxes, a plurality of temperature sensors are prearranged in the prefabricated samples, and a vibration assembly is arranged outside the tank body. The isolation plates, the multiple pressure applying assemblies and the elastic rods with different heights are cooperated, so that the multiple stress environments of the coal mines with different depths can be simulated at the same time, the actual stratum differences are better matched, the water penetration is actively controlled by the lifting assembly, the underground water dynamic infiltration process is accurately restored, the static water supplement is avoided to be disconnected with the actual situation, the sample crack water is uniformly distributed by the vibration assembly through vibration, the local water accumulation or vacancy is prevented, and the accuracy and reliability of the water temperature monitoring data are improved.
Owner:CHINA UNIV OF MINING & TECH
Chamber and probe
Reduce the temperature in the observation window. [Solution] The system comprises a stage 8 for fixing the object to be evaluated 110, a heater 30 for heating the stage 8, airtight containers 10 and 20 for housing the heater 30 and the stage 8, and a first cooling pipe 7 for cooling the side walls of the airtight containers 10 and 20. The airtight containers 10 and 20 each consist of a main body 10 surrounding the heater 30 and the stage 8, and an observation section 20 having an observation window 18 for observing the object to be evaluated 110, with the observation section 20 protruding from the main body 10. The system also has a second cooling pipe 17 for cooling the side wall of the observation section 20.
Owner:ハイソル +1
A turbine blade coating thermal shock test system
The present disclosure relates to the technical field of material corrosion test, and particularly relates to a turbine blade coating thermal shock test system. The turbine blade coating thermal shock test system comprises an environment simulation subsystem and a test execution subsystem, the environment simulation subsystem is used for generating a gas flow, a gas outlet of the environment simulation subsystem is in communication with a gas inlet of the test execution subsystem, the test execution subsystem comprises a test part and a test piece bearing mechanism, the test piece bearing mechanism comprises a test piece fixing assembly and an angle adjusting assembly, the test piece fixing assembly comprises a test bench and a test piece clamp, a bottom end of the test piece clamp is fixedly connected with a driving end of the angle adjusting assembly, the test piece clamp is used for fixing a turbine blade test piece, and the angle adjusting assembly is used for driving the test piece clamp to deflect the turbine blade test piece to a preset angle. The turbine blade coating thermal shock test system provided by the present disclosure can realize deflection of the turbine blade test piece in a high-temperature gas flow, and truly simulates a working state of a rotatable guide vane.
Owner:AERO ENGINE ACAD OF CHINA
A method for compensating for temperature in the field for foam expansion and 25% drainage time
ActiveCN121222018Bimprove accuracyFacilitate quality judgmentFire rescueMaterial thermal analysisThermodynamicsEngineering
The application discloses a foam multiple and 25% liquid separation time on-site detection temperature compensation method, S1: different kinds of foam extinguishing agents are sampled, and each foam extinguishing agent is configured into several foam mixtures with different temperatures according to a mixing ratio; S2: the foam mixtures with different temperatures in step S1 generate foam respectively, and the foam multiple, 25% liquid separation time and generated foam temperature are measured; S3: a first fitting equation of the generated foam temperature and the foam multiple ratio of different kinds of foam extinguishing agents is established respectively, and a second fitting equation of the generated foam temperature and the 25% liquid separation time ratio of different kinds of foam extinguishing agents is established; the on-site detected foam multiple and 25% liquid separation time are corrected through the first fitting equation and the second fitting equation respectively. The application can reduce the influence of the on-site environment temperature, obtain the foam multiple and 25% liquid separation time standard data of the foam temperature of 20 DEG C on site, and improve the accuracy and authority of the detection result.
Owner:TIANJIN FIRE SCI & TECH RES INST OF MEM
A method for evaluating the stability of battery slurry
This invention provides a method for testing the stability of battery slurry. The method uses ICP-OES and TG-MS to quantitatively analyze the material composition of the battery slurry. The stability of the slurry is evaluated by the percentage change in the mass of the slurry material at a set height after the slurry has been left to stand. The method has high accuracy and can clearly identify which materials play a significant role in the stability of the slurry. The stability of the slurry system can be improved by adjusting the physicochemical properties of the materials.
Owner:DEEPAL AUTOMOBILE TECH CO LTD
Thermal test apparatus for sweat-cooled panels in high-temperature fuel conditions
The application discloses a heat testing device for sweat cooling panels under high-temperature fuel state, and aims at solving the technical problem that the existing cold flow measurement method cannot accurately measure the permeability and compatibility of sweat cooling panels under high-temperature working conditions. Specifically, the heat testing device comprises a test shell and a heating mechanism; the test shell is internally provided with a high-temperature fuel cavity for placing the sweat cooling panel; the high-temperature fuel cavity is used for simulating the fuel flow channel of an engine combustion chamber; the bottom of the test shell is provided with multiple fuel inlets in parallel and communicated with the high-temperature fuel cavity, and is also provided with multiple fuel outlets in parallel and communicated with the high-temperature fuel cavity; the top of the test shell is provided with at least one sweat outlet communicated with the high-temperature fuel cavity; and the heating mechanism is connected with the test shell and used for heating the test shell. The heat testing device can test the permeability of fuel under high-temperature state or the permeability of sweat cooling panels under high-temperature state, and can also complete the compatibility test of high-temperature fuel, sweat cooling panels and high-temperature alloy structures.
Owner:XIAN AEROSPACE PROPULSION INST
Printed matter quality detection device for medicine packaging box
ActiveCN116008162BWeather/light/corrosion resistanceOptically investigating flaws/contaminationLightfastnessDrug packaging
The present application relates to a kind of detection devices, in particular to a kind of printed matter quality detection device for medicine packaging box.The present application aims to provide a kind of printed matter quality detection device for medicine packaging box, which can detect the heat resistance, light resistance and friction resistance of medicine packaging box.The present application provides such a kind of printed matter quality detection device for medicine packaging box, comprising conveyor, conveying baffle, visual detector, controller, the conveying belt of conveyor is uniformly spaced and connected with conveying baffle, visual detector is installed on one side of conveyor, and controller is arranged on conveyor.The present application can detect the light resistance of medicine packaging box by the irradiation of strong light lamp, and can also detect the heat resistance of medicine packaging box by heating assembly, and can detect the friction resistance of medicine packaging box by scratching mechanism, so as to realize the effect of detecting the light resistance, heat resistance and friction resistance of medicine packaging box.
Owner:ZHUHAI WANJIANG PRINTING CO LTD
System for evaluating the hydrophobicity grade of energy equipment superhydrophobic surfaces
PendingCN122171444AMaterial analysis using wave/particle radiationWeather/light/corrosion resistanceSuperhydrophobeRating system
This invention discloses a hydrophobicity rating system for superhydrophobic surfaces of energy equipment, relating to the field of hydrophobicity rating technology. The system includes a data acquisition module, an optimal parameter combination module, a sample preparation module, a hydrophobicity quantification and evaluation module, a test closed-loop calibration module, and a hydrophobicity rating classification and output module. These modules are interconnected, and through their collaborative operation, the system quantifies, performs closed-loop calibration, and classifies the hydrophobicity index of superhydrophobic samples of energy equipment with different microstructures. The closed-loop calibration process fully considers both anti-icing and weather resistance, significantly improving the accuracy and generalization ability of the hydrophobicity rating results. This solves the problems of inaccurate evaluation results and inability to adapt to extreme field conditions caused by traditional evaluation systems relying solely on conventional laboratory environments, single physical tests, and empirical thresholds for rating. This enhances the intelligence level of hydrophobicity rating evaluation for superhydrophobic surfaces of energy equipment.
Owner:CHONGQING UNIV
Rubber tube heat resistance test equipment
The utility model discloses a rubber tube heat resistance test device, which is used for testing the heat resistance of a rubber tube and joint assemblies at the two ends of the rubber tube, and comprises adapters respectively connected to the joint assemblies and pipeline assemblies respectively connected with the adapters, the outer ends of the two joint assemblies are relatively and fixedly connected with the radial parts of the adapters, and the pipeline assemblies are respectively connected with the adapters. The other radial part of the adapter joint is relatively fixedly connected to the pipeline assembly, and the radial inner side part and the radial outer side part of the adapter joint can rotate relatively; the rubber pipe and the joint assembly are rotatably connected with the pipeline assembly; the device further comprises a driven wheel and a driving wheel, one radial part of one adapter connector connected with the connector assembly is relatively and fixedly connected to the driven wheel, and the driven wheel is driven by the driving wheel to rotate so as to drive the rubber pipe and the connector assembly to rotate. And by rotating the rubber tube and the joint assembly, the rubber tube and the joint assembly can be heated more uniformly in a high-temperature environment, so that the test result is more reliable.
Owner:GATES FLUID POWER TECH (CHANGZHOU) CO LTD
An aero-graphite seal assembly o-ring failure simulation device and method
The application discloses an aviation graphite sealing assembly O-shaped sealing ring failure simulation device and method, and particularly relates to a method for simulating working environment including oil medium, working pressure, working temperature, working time and part deformation, clamping the O-shaped sealing ring by using the same O-shaped sealing ring clamp as the part structure, putting into a container filled with the same oil medium as the working time, heating according to certain conditions until the O-shaped sealing ring fails, and deducing the possible failure reason of the O-shaped sealing ring, which is suitable for aviation equipment graphite sealing assembly maintenance and fault elimination. The technical method and device overcome the shortcomings that the pressure of the oil medium is not considered and only the single axial deformation of the O-shaped sealing ring is considered in the commonly used GB / T 1690-2010 test method, and can more accurately simulate the O-shaped sealing ring failure critical temperature.
Owner:STATE-OWNED SICHUAN WEST MASCH FACTORY
Multi-temperature-field automatic thermal cycle test device and test method thereof
PendingCN121927702AHeating or cooling apparatusNuclear energy generationElectrical controlRoom temperature
The invention provides a multi-temperature-field automatic thermal cycle test device and a test method thereof. The multi-temperature-field automatic thermal cycle test device comprises an automatic material conveying unit, a high-temperature environment field unit, a low-temperature environment field unit, a room-temperature environment field unit, an electrical control unit and an outer frame platform unit, the automatic material conveying unit comprises a lifting storage rack, a lifting operation mechanical arm and a rotating main shaft; the high-temperature environment field unit comprises a high-temperature environment box body which can be opened and closed, and an electric heating element is mounted in the high-temperature environment box body; the low-temperature environment field unit comprises a low-temperature environment box body which can be opened and closed, and a liquid nitrogen refrigerating device is mounted in the low-temperature environment box body; the room temperature environment field unit comprises a room temperature field fan. A plurality of temperature fields are adopted, a refrigerating medium is used for achieving rapid cooling at the low temperature, a heating wire is used for achieving rapid heating at the normal temperature in the air environment and at the high temperature, the multiple temperature fields are provided at the same time or different temperature fields can be rapidly switched, and thermal cycle test research under large-range temperature changes can be carried out.
Owner:SHANGHAI JIAOTONG UNIV +1
Foam strip pasting detection system for sheet metal parts
PendingCN121409985AOptically investigating flaws/contaminationMaterial thermal analysisMechanical engineeringGas bubble
The invention relates to the technical field of industrial automatic detection, and discloses a foam strip pasting detection system for sheet metal parts, which comprises a first-stage detection module, a second-stage detection module, a third-stage detection module, a fourth-stage detection module and a fifth-stage detection module, and is characterized in that the first-stage detection module utilizes a visible light image to quickly judge whether a foam strip pasting missing defect exists or not by comparing with a standard template; and if not, accurately generating the dynamic regions of interest of all the foam strips according to the real-time image. And then, the second-stage detection module analyzes a transient thermal image acquired by the thermal imaging detection module after transient thermal excitation only in the dynamic region of interest, and judges the pasting quality by identifying local temperature abnormality caused by false pasting defects such as bubbles or edge upwarp and the like. By means of two-stage series connection and multi-mode detection, the two core defects of missing adhesion and false adhesion can be accurately detected at the same time, full automation of detection is achieved, and the production efficiency and the product quality are remarkably improved.
Owner:MINGTAI PRECISION STAMPING (WUJIANG) CO LTD
Refrigerant sensor unit
ActiveDE202025107985U1Mechanical apparatusLighting and heating apparatusRefrigerantMechanical engineering
Refrigerant sensor unit with a housing that can be mounted on a wall surface and a refrigerant sensor for detecting a refrigerant therein, wherein the housing comprises: a first component comprising a front section forming the front of the housing, and a bottom section forming the bottom of the housing, and a second component comprising a rear section which forms the rear of the housing, which is arranged opposite the wall surface in the case in which the housing is attached to the wall surface, wherein A second projection is provided on the back section, which stands out from the back and protrudes, the second projection has a distal end section with a second engagement section, which is a second upright surface that projects upwards and is located opposite the rear side, The bottom section has a first projection that extends to a side opposite the front. the first projection has a distal end section with a first intervention section that protrudes downwards, the first engagement section and the second engagement section are designed such that a connection between the first engagement section and the second engagement section is released when a pressure surface formed on the first projection is pressed upwards, and the printing surface is arranged in a position where the printing surface can be actuated from the front of the housing.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
High-temperature-resistant detection mechanism for electric meter shell
The utility model provides a high-temperature-resistant detection mechanism for an electric meter shell, which comprises a heating box with an opening at the upper end, an openable sealing cover arranged at the opening end of the heating box, a lifting assembly arranged outside the heating box, connected to the sealing cover and used for driving the sealing cover to lift up and down, and a rotating motor arranged at the upper end of the sealing cover, a fixing assembly is arranged at the lower end of the sealing cover and connected to an output shaft of the rotating motor, a control panel is arranged at the front end of the heating box, and the temperature control assembly, the lifting assembly and the rotating motor are all electrically connected to the control panel. During use, the rotating motor drives the fixing assembly to rotate in the heating box, the ammeter shell rotates at a constant speed, heating is uniform, and the accuracy of the detection effect is guaranteed.
Owner:BEIJING SHENGKAI ELECTRIC
Intelligent soil moisture content analysis system based on Internet of Things terminal
ActiveCN121595841ABatteries circuit arrangementsParticular environment based servicesSoil scienceSoil moisture sensor
The invention relates to the technical field of agricultural information, and particularly discloses an intelligent soil moisture content analysis system based on an Internet of Things terminal. The system comprises an Internet of Things terminal network formed by heterogeneous nodes integrating multiple types of soil moisture sensors, an edge computing gateway and a cloud analysis platform. Long-term operation of nodes is guaranteed through an energy collection and management module, an edge gateway performs data cleaning and preliminary interpolation, a cloud platform fuses discrete profile point data with continuous surface trend surface data by using a space-time collaborative Kriging interpolation engine, and a high-precision three-dimensional continuous soil moisture content volume data model is constructed. And moisture migration simulation and irrigation decision are supported, and accurate, low-cost and sustainable monitoring and analysis of three-dimensional distribution of the farmland soil moisture content are realized.
Owner:SICHUAN ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
A model test device for saline soil roadbed under different working conditions
ActiveCN116359482BMaterial strength using tensile/compressive forcesEarth material testingSoil scienceModel test
This invention relates to the field of saline soil technology, and more particularly to a test device for saline soil subgrade models under different working conditions. It solves the problem in existing technologies that, in order to utilize saline soil more widely and meet the engineering construction needs of saline soil areas, it is necessary to provide a reasonable basis for judging the suitability of subgrade fillers in saline soil areas, requiring testing of saline soil subgrade structures under different working conditions. The test device for saline soil subgrade models under different working conditions includes a support base, two support side frames fixedly connected to both sides of the top of the support base, and two drive mechanisms mirror-mounted on the top of the support base. Both sides of the two drive mechanisms are detachably connected to the side walls of the adjacent support side frames. Several sets of detection components are arranged at the top between the two drive mechanisms. This invention has a reasonable structure, facilitates comprehensive and rapid testing, and allows for various combinations of tests, greatly improving the comprehensiveness of the testing.
Owner:THE SECOND ENG CO LTD OF CHINA RAILWAY 14TH CONSTR BUREAU CO LTD +1