3980results about "Flow properties" patented technology

To provide a test method for mechanical characteristics of combined electrical, thermal and mechanical deterioration of insulating oil-paper.SOLUTION: The present invention comprises: constructing an AC and DC / thermal / mechanical stress combined deterioration experimental platform; preparing insulating oil-paper samples with different deterioration states; measuring a degree of polymerization and tensile strength test of the insulating oil-paper samples with different deterioration states; acquiring change rules of mechanical characteristics after deterioration; observing microscopic morphology diagrams and XRD spectra of the insulating oil-paper samples with different deterioration states; constructing an amorphous unit cell of a cellulose molecular chain; optimizing a structure; acquiring a cellulose model; constructing an oil-paper mixed model; performing molecular dynamics simulation on the oil-paper samples with different deterioration states based on the cellulose model and the oil-paper mixed model; and constructing the relation between the deterioration of macroscopic mechanical characteristics of insulating oil-paper and changes in microscopic physical and chemical characteristics, where a data basis and theoretical support for prediction of a life of insulating paper are provided.SELECTED DRAWING: Figure 19

The invention discloses a real-time prediction method for muck improvement parameters of a shield under-crossing existing tunnel, and the method comprises the steps: carrying out the refined preprocessing of non-under-crossing section shield tunneling data, enabling an obtained data set to be used for the training of a machine learning integrated prediction model, and obtaining a muck improver dosage integrated prediction model; meanwhile, slump experiments are carried out for different types of stratums, the optimal water content and foam injection ratio parameter range is determined, and a reliable decision basis is provided for a shield driver. The quality of a data set and the prediction precision of a machine learning model are remarkably improved through a finer data preprocessing means; the machine learning integrated prediction model fuses learning capabilities of different machine learning models, so that the prediction precision of the model is further improved; and machine learning and experimental means are combined to realize accurate and rapid prediction of the use amount of the modifier, so that safe and smooth tunneling of the shield under the existing tunnel is ensured, and the method has certain timeliness and economical efficiency.

The invention relates to the technical field of livestock breeding, in particular to a cow manure automatic scoring system and method.The cow manure automatic scoring system comprises an image acquisition unit, a physical property sensor, a chemical component detection module and a data processing unit.The image acquisition unit is used for capturing the form, color and fiber residue of manure; the physical property sensor is used for measuring the water content of excrement and evaluating the viscosity and hardness of the excrement; the chemical component detection module comprises a near infrared spectrum analysis unit and an electrochemical sensor unit; and the data processing unit is used for integrating an AI algorithm, realizing multi-source data fusion and scoring, and uploading the data to the cloud management platform through the communication module. Therefore, the problems that in the prior art, manual scoring is subjective, low in efficiency and difficult to quantify, diseases are difficult to find early due to the lack of rapid component detection means, and accurate nutrition regulation and control are difficult to achieve due to the fact that scoring data are difficult to integrate into a breeding system are solved.

The invention discloses an aluminum electrolytic capacitor state evaluation method and device, and the method comprises the steps: carrying out the frequency scanning measurement of an electrolyte and oxidation film interface, and obtaining the change data of an interface polarization current phase angle along with the frequency; measuring fluid dynamic characteristics of the electrolyte according to the polarization characteristic parameters, and detecting micro-flow response characteristics; according to the flow distribution data and the evolution data, applying a voltage sequence to carry out ion migration kinetic analysis; carrying out microstructure analysis in a preset temperature change process according to the ion distribution characteristics; and according to the structure change data and the dielectric response data, analyzing the change characteristics of the molecular level, the bubble distribution and the overall performance to obtain a stability evaluation result. According to the technical scheme, through multi-dimensional analysis of the interface polarization characteristic, the fluid dynamic characteristic, the ion migration dynamics and the microstructure change of the electrolyte, effective detection of bubbles and layering phenomena in the electrolyte is realized, and accurate evaluation of the performance state of the capacitor is facilitated.

The invention relates to the technical field of multi-sensor fusion, in particular to a detection method and system for silicon steel magnesium oxide adhesiveness. Particulate matter matching analysis is carried out based on the corresponding magnesium oxide coating particle condition and the silicon steel surface condition; the particle bonding effect is evaluated based on the particle matching analysis result and the fluidity condition of the coating in the scene, and the magnesium oxide adhesion quality is predicted based on the evaluation result of the particle bonding effect and the shaking condition of the equipment in the coating process. The characteristics of the coating, the surface condition of the silicon steel, the coating environment, dynamic factors in the coating process and the like are comprehensively considered, the adhesiveness of magnesium oxide is evaluated and analyzed from multiple dimensions, and the multi-dimensional analysis method provides a more scientific and more accurate evaluation means for the silicon steel coating technology.

The utility model discloses a milk-containing beverage viscosity detection device, and relates to the technical field of food processing, the milk-containing beverage viscosity detection device comprises a stirring box, the stirring box is fixedly communicated with a first processing box through a first U-shaped pipe, and the inner top wall of the first processing box is fixedly connected with a container bottle; and an automatic exhaust valve arranged on the upper surface of the first treatment box communicates with the interior of the container bottle, an ultrasonic generator is fixedly connected to the inner bottom wall of the first treatment box, and a heating wire is arranged in the first treatment box. The milk beverage defoaming device is reasonable in design structure, water in the first treatment box can be heated through the heating wire, bubbles in a container bottle can be heated and expanded, the bubbles are broken under ultrasonic vibration generated by the ultrasonic generator, an electric telescopic rod continues to work, negative pressure defoaming is conducted on the interior of the glass bottle, and milk beverage is defoamed in the device; and the phenomenon that the flowing of the milk-containing beverage fluid is blocked due to the existence of bubbles is relieved, so that the viscosity detection of the device is more accurate.

The invention is suitable for the technical field of viscosity detection, and provides a printing ink viscosity detection device, which comprises a base, a sample container and a detection assembly, the motor c is fixedly installed on the base, a multi-station rotating plate is fixedly installed on an output shaft of the motor c, six placing holes are formed in the multi-station rotating plate and are arranged in the circumferential direction of the multi-station rotating plate at equal intervals, and the sample containers are placed in the placing holes. A vacant placing hole is formed between every two adjacent sample containers; the pretreatment mechanism comprises an L-shaped supporting plate a, a telescopic cylinder, a cover plate, a rotating frame and a rotating pipe b, a uniform treatment assembly is arranged on the rotating frame, and a control assembly is further arranged on the rotating frame; through cooperative arrangement of the multi-station rotating plate, the detection assembly and the pretreatment mechanism, the problem that the detection precision is affected by uniformity can be effectively avoided.

The invention relates to the technical field of cement detection, and discloses a cement detection device for road construction, which comprises a base, a lifting rotating mechanism and a detection mechanism, a stand column is mounted behind the top of the base, a cross rod is mounted at the top of the front end of the stand column, a control box is mounted at the front end of the cross rod, and a driving motor is arranged in the control box; the bottom of the driving motor is connected with a stirring structure, and a cement storage barrel is arranged above the base; the lifting rotating mechanism is fixedly arranged at the front end of the stand column and is connected to the extension rod and the stirring rod in a penetrating manner; the detection mechanism is connected to the bottom of the lifting rotating mechanism and comprises an impact detection structure and a solidification state detection structure. According to the cement detection device for road construction, comprehensive detection of cement is achieved, impact detection of cement hardness and strength and cement solidification state detection are facilitated, the impact condition in actual construction can be simulated, cement quality can be accurately evaluated, and important reference is provided for construction.

The invention provides an aluminum enameled flat wire online defect detection and self-adaptive deviation correction method and system, and relates to the technical field of enameled wire defect detection.The aluminum enameled flat wire online defect detection and self-adaptive deviation correction method comprises the steps that an aluminum enameled flat wire is immersed in fluid with set viscosity, and a reference fluid resistance signal and a reference electromagnetic signal are collected; fluid resistance signals and electromagnetic induction signals are detected in real time; positioning defect positions of surface defects of the enameled wire; identifying types and distribution of internal defects of the aluminum enameled flat wire; distinguishing defect types through a machine learning algorithm; outputting a corresponding correction scheme through the pre-trained neural network model; and outputting the deviation correction control signal to the correction module for deviation correction operation. Through synchronous acquisition and analysis of fluid resistance signals and electromagnetic induction signals, synchronous detection of surface defects and internal defects is realized, and the limitation of a traditional single detection means is solved; by forming a high-precision three-stage classification system, an interpretability report is generated, and the classification accuracy of the composite defects is remarkably improved.

The invention discloses a grinding concentration measuring device for soybean milk powder processing, and relates to the technical field of soybean milk powder processing equipment. The system comprises the following components: a sampling unit, a spectral analysis unit, a rheological detection unit, a data processing and control unit, and a display and alarm unit. The invention adopts a dynamic adaptive flow algorithm through the sampling unit, and can adjust the sampling flow according to the real-time characteristics of the soybean milk sample to ensure the representativeness and accuracy of the sample. The spectral analysis unit and the rheological detection unit respectively use spectral detection technology and rheological characteristic measurement technology to deeply analyze the composition and rheological characteristics of the soybean milk sample. The data processing and control unit adopts a fusion intelligent algorithm to efficiently process and analyze the collected data, and finally calculates the accurate grinding concentration. This process not only improves the accuracy of the measurement, but also significantly improves the measurement efficiency, and provides strong technical support for the soybean milk powder processing process.

The invention relates to the technical field of lubricant analysis, in particular to a gearbox lubricating oil product state intelligent recognition system and method, and the system comprises a lubricating oil state parameter collection module, a multi-dimensional feature fitting degree classification module, a spectrum pollutant dynamic detection module, a state change trend storage module and a lubricating oil abnormal deviation early warning module. According to the method, the lubricating oil state features are accurately extracted by constructing a multi-dimensional feature matrix and high-dimensional space mapping, the fitting degree weight and the data scale are combined to adjust, optimize and classify, the state recognition precision is improved, the pollution change is recognized through trend analysis in dynamic spectrum pollutant detection, and the monitoring sensitivity is improved. A data storage strategy driven by parameter change ensures the integrity of high-value data and reduces invalid storage, an offset calculation method is combined with data trend comparison to improve the recognition accuracy of an abnormal state, and misinformation and missing report are reduced.

The invention relates to the field of test and detection of building materials, in particular to a method for detecting the residual equivalent weight of a flocculating agent in washed fine aggregate, which comprises the following steps: preparing standard samples containing flocculating agents with different concentrations, detecting to obtain a first standard fluidity and drawing a standard curve; a clear soaking solution obtained by fully soaking the washed fine aggregate replaces a flocculant solution to prepare a detection sample, first detection fluidity is obtained through detection, and the residual equivalent of the flocculant in the washed fine aggregate is obtained by combining the standard curve. According to the method, the influence of the difference of the sand on the fluidity is eliminated, the accurate residual equivalent of the flocculating agent is obtained, and the method has high universality.

The invention discloses an asphalt viscosity testing device for road and bridge construction, and relates to the technical field of asphalt viscosity testing. Liquid asphalt reaching the detection temperature circularly flows between the heating mechanism and the viscosity testing mechanism, so that the asphalt can be continuously heated in the flowing process, the temperature of the asphalt is kept in a relatively stable state, and the inner walls of components such as a conveying pipe and a return pipe can be heated in the long-time flowing process of the asphalt, so that the viscosity of the asphalt is improved. Before the asphalt viscosity is detected, the temperature of the asphalt and the temperature of a component in contact with the asphalt can be kept consistent, so that the condition of heat loss before the asphalt is detected is avoided, and the accuracy of asphalt viscosity detection can be improved; the plurality of viscosity testing units are used for synchronously testing the viscosity of the asphalt at a plurality of positions at the same time, and the viscosity value of the asphalt at the testing temperature can be comprehensively evaluated, so that the condition that the testing data have relatively large deviation due to misoperation or equipment failure is avoided.

The method for detecting the comprehensive working performance of the fresh concrete provided by the invention comprises the following steps: pouring the fresh concrete into a certain channel in a detection container which is provided with a plurality of channels and the bottoms of which are communicated with one another, and detecting the comprehensive working performance of the fresh concrete when the liquid level height of the fresh concrete in each channel is kept unchanged, measuring the liquid level height of the concrete in each channel and detecting the quality of the concrete in the container; a discharging opening in the bottom of the detection container is opened, the concrete in the detection container is discharged by means of self weight, in the discharging process, the mass of the discharged concrete or the discharging flow speed of the concrete is measured, and after discharging is completed, a concrete discharging mass-time curve or a concrete discharging flow speed-time curve is obtained; according to a measurement result, a series of indexes including the fluidity, viscosity, uniformity and apparent density of the concrete are obtained through arrangement and conversion and serve as a comprehensive evaluation result of the working performance of the fresh concrete. According to the method, multiple working performance indexes of the concrete can be given at a time, and mutual complementary interpretation can be carried out.

The utility model discloses an asphalt concrete fluidity detection device which comprises a bottom frame, one side surface of the bottom frame is fixedly connected with an integrated control box, one side surface of the integrated control box is movably connected with a limiting assembly, and the upper end of the limiting assembly is provided with a detection assembly. According to the utility model, the material carrying cylinder is placed in the placing groove of the bottom frame, and the sliding plate is lifted and pressed to the upper end of the material carrying cylinder, so that the three main frameworks are tightly buckled in the three positioning clamping grooves, and the three auxiliary frameworks are tightly buckled in the three positioning clamping grooves; the surface of one side of the connecting ring is attached to the surface of one side of the material loading barrel, the detection main rod is limited by the limiting ring and the limiting ball, it is ensured that the drop hammer vertically falls, a more accurate mobility test result is obtained, system errors and random errors caused by deviation are integrally reduced, and the detection accuracy is improved. The resistance applied to the asphalt mixture is uniform and consistent when the asphalt mixture passes through the asphalt mixture, so that the fluidity of the mixture is reflected more accurately.

Aspects include the use of a vibratory transducer having multiple oscillators including a first oscillator (220) and a second oscillator (210), wherein the first and second oscillators are coupled such that excitation (vibration) of the first oscillator excites (causes to vibrate) the second oscillator in a viscoelastic fluid (240). Because the frequency response of the dual-oscillator combination is affected by fluid properties, measuring one or more of: i) resonant frequency, ii) vibration amplitude, iii) loss factor (or Q factor), of the combination of the vibration of the first and second oscillators in the viscoelastic fluid, can be used to determine or one or more of the following properties of the viscoelastic fluid: i) density, ii) viscosity (such as the dynamic viscosity, μ'), iii) elasticity (such as the storage modulus, G').

The invention relates to the technical field of asphalt performance analysis, in particular to a method for detecting and analyzing physical properties of polymer modified asphalt. According to the invention, the collected asphalt sample is subjected to pretreatment means of vacuum degassing, multi-angle image bubble monitoring and constant-speed stirring, the uniformity of the asphalt sample is judged according to physical state parameters at different positions, the reliability of subsequent detection data is further improved, and a plurality of uniformly-divided target asphalt samples are respectively placed in the constant-temperature containers; the method comprises the following steps: recording the heat conduction temperature of each target asphalt sample at different monitoring points in a constant-temperature water bath in real time, carrying out penetration detection on each target asphalt sample after the sample reaches heat balance, carrying out penetration index analysis according to the incidence relation between the temperature and the penetration, and evaluating the physical properties of the polymer modified asphalt based on the penetration index. The penetration data under different temperature gradients can be accurately obtained, the physical properties of the polymer modified asphalt can be comprehensively and accurately evaluated, and a reliable basis is provided for engineering quality control.

The invention discloses a micro-disturbance in-situ geological multi-parameter intelligent monitoring device which comprises a driving mechanism, a plurality of sections of modularized protection tubes, a marker post and a plurality of monitoring modules. The driving mechanism is installed on the ground so as to be used for inserting or pulling the multiple sections of protection pipes which are detachably connected in sequence into or out of reserved standard holes in the ground. The centers of the multiple sections of protection pipes communicate with aligned protection holes, and the mark post is suitable for being inserted into the bottom of the mark hole along the protection holes for monitoring. The multiple monitoring modules are correspondingly installed on the protection pipes, the protection pipes are opened at the set installation positions, and then the installed monitoring modules are inserted into the soil on the side portions of the standard holes. The range pole has the beneficial effects that a stable protection space is formed by opening the protection pipe, and the installation stability of the range pole and the accuracy of data monitoring are guaranteed. Meanwhile, the protection tube is opened to drive the monitoring module to be inserted into the soil so as to monitor the fluidity of the soil at different depths of the standard hole; therefore, the accuracy of data acquisition is ensured while monitoring of different geological parameters is realized.

The invention provides an on-line monitoring system for comprehensive working performance of concrete. The on-line monitoring system comprises a concrete drainage device located on a concrete conveying line of a mixing station and a construction bin surface; the detection container is used for collecting concrete and detecting the working performance, and a plurality of detection channels of which the bottoms are communicated with one another are arranged in the detection container; the gate group is used for controlling connection and disconnection of concrete among the passages; the sensing unit is used for measuring the quality of the concrete in the detection container and the liquid level height of the concrete in each detection channel; the data processing and equipment control terminal is used for controlling the gate group, calculating a series of indexes of the concrete according to the data measured by the sensing unit, taking the indexes as detection results, performing abnormal alarm on the detection results, storing and sending the measured data and the detection results; and the cloud platform communicates with the data processing and equipment control terminal. According to the invention, on-line in-situ monitoring, rapid evaluation and alarm feedback of various working performances of concrete can be realized under the condition that on-site pouring construction is not influenced.

The invention discloses a three-dimensional large-size dynamic water grouting simulation diffusion test device and a test method, and belongs to the technical field of dynamic water grouting engineering. The test device comprises a variable-pressure water supply device, a grouting device, a simulation grouting pipeline and a monitoring system. The simulated grouting pipeline comprises a water inlet pipeline, a grouting pipeline and a drainage pipeline, and the grouting pipeline can be split into an upper part and a lower part, so that the grouting plugging body can be conveniently taken out for subsequent research. The monitoring system comprises a pressure sensor, an ultrasonic flowmeter, a high-speed camera, a computer, a distributed optical fiber and an optical fiber decoder. According to the testing device and the testing method, the plugging performance of the slurry in the flowing water karst pipeline under the complex geological condition can be measured, the optimal construction parameters are selected according to site conditions, and research on flowing water grouting slurry rheological characteristics and a diffusion theoretical model is achieved through the optical fiber monitoring technology.

The invention discloses a suspension type viscosity and density on-line measuring device and a suspension type viscosity and density on-line measuring method. The device comprises a cavity, a rotating part, a reference rotor, a suspension rotor, a torsional elastic piece and a distance measuring sensor, the rotating part is fixedly connected to the cavity; the reference rotor is fixedly connected to the outer wall of the rotating shaft, synchronously moves along with the rotating shaft and is higher than the liquid level of measured liquid; a suspension detection end is arranged at the upper end of a suspension body of the suspension rotor, the suspension body is connected with the rotating shaft through a torsion elastic piece, the suspension body suspends in detected liquid, the suspension detection end is exposed out of the detected liquid, and the suspension rotor is driven by the rotating shaft to rotate; the distance measuring sensor fixed in the cavity measures the rotating speed of the reference rotor, the axial displacement of the suspension detection end and the phase difference between the reference rotor and the suspension rotor so as to calculate the viscosity and density of the liquid to be measured. The device has the effects of measuring the density and the viscosity of the liquid in real time and being high in measurement precision.

The invention relates to the technical field of road and bridge pavement detection, in particular to a road and bridge asphalt pavement detection device. Comprising a paver and further comprises a viscosity detection mechanism, the viscosity detection mechanism comprises an installation frame, the paver is fixedly connected with the installation frame, an electric push rod is installed at the bottom of the installation frame, the telescopic end of the electric push rod is fixedly connected with a [-shaped frame, the bottom of the [-shaped frame is fixedly connected with an elastic telescopic shaft, and the telescopic end of the elastic telescopic shaft is fixedly connected with a detection plate. And the detection plate is in sliding connection with the n-shaped frame. Through the design of the viscosity detection mechanism, when asphalt is laid, a detection plate is inserted into an asphalt mixture, the asphalt mixture can be adhered to the detection plate according to the viscosity characteristics of new asphalt and recycled asphalt, and the viscosity of the asphalt mixture can be detected by observing the scales on the top surface of the detection plate and in the [-shaped frame. According to the method, the blending proportion of the asphalt mixture can be judged, so that performance reduction of the asphalt mixture caused by excessive new asphalt or recycled asphalt in the asphalt mixture is prevented.

The invention relates to the technical field of crude oil detection, in particular to a production place tracing method and system based on big data, and the method provided by the invention comprises the steps: obtaining spectral variation characteristics, calculating spectral variation characterization parameters for current to-be-detected crude oil, and determining the spectral variation category of the current to-be-detected crude oil. According to the spectrum variation characterization parameters, determining the beam diameter and the sample scanning time when spectrum analysis is carried out on the crude oil to be detected, determining spectrum data obtained in a preset time, and comparing obtained spectrum data fragments after the spectrum data is segmented in a time domain dimension, whether spectral analysis meets the standard or not is judged according to the similarity between the spectral data fragments, so that the scanning speed of the spectrograph is adjusted, the spectral data are obtained again and stored, or initial operation parameters of the spectrograph are maintained, and the spectral data are obtained and stored; the origin of the current crude oil to be detected is traced according to the similarity comparison result of the stored spectral data and the spectral data of the samples corresponding to the origin, so that the traceability accuracy is improved.

The invention discloses a lithium ion battery mixed slurry viscosity detection method based on lithium iron phosphate. The method comprises the steps of slurry pretreatment and parameter initialization, multi-modal data acquisition, dynamic viscosity compensation model construction, rheological property prediction, abnormality diagnosis and online feedback control. The temperature, the shearing rate, the solid content and the rheological curve of the slurry are acquired in real time through a multi-sensor fusion technology, a dynamic viscosity compensation model is constructed in combination with the characteristics of the lithium iron phosphate material, and a rheological prediction algorithm based on machine learning is introduced, so that high-precision and nondestructive online detection is realized. The influence of particle size distribution and temperature drift is eliminated through material characteristic modeling, and the measurement precision is further improved; and an ultrasonic wave and near infrared combined detection mode is adopted, so that the slurry structure is prevented from being damaged by a traditional sampling method, viscosity abnormity self-diagnosis and process parameter real-time feedback are realized, and the rejection rate is reduced.

The utility model relates to the technical field of rheometers, and provides an online rheometer which comprises a fixed frame, a rheometer main body is arranged outside the fixed frame, a detection mechanism is arranged inside the rheometer main body, the detection mechanism comprises a rotating blade used for stirring a solution to be detected and a detection assembly connected with the rotating blade, and the detection assembly is connected with the fixed frame. The detection assembly is used for detecting the rheological property of the to-be-detected solution through the rotating blade. According to the utility model, the innovative detection mechanism is arranged, and the sealing and separating design is adopted, so that the conditions that the detection accuracy is influenced and the cleaning is troublesome due to the fact that a solution to be detected enters a detection part due to traditional shaft connection can be effectively avoided; through the magnetic attraction effect, the rotating blades and other parts can be conveniently and rapidly disassembled or assembled, and the rheological property of the blocking force generated by rotation of the rotating blades in the solution to be detected can be detected through the detection assembly through the magnetic attraction effect.

The invention provides a system and method for detecting free carbon particles in transformer oil based on a microelectrode array, and the system comprises a sampling module which comprises an oil inlet pipeline and a filtering device, an oil sample is conveyed to a microelectrode array sensor module from a transformer oil tank through the oil inlet pipeline, and the filtering device is located in the oil inlet pipeline; a filter membrane is arranged in the filter device to remove impurities in the oil sample; the microelectrode array sensor module comprises a microelectrode array sensor, the microelectrode array sensor is nanoelectrodes arranged on a silicon substrate, the surface of the microelectrode array sensor is coated with graphene oxide to adsorb free carbon particles in an oil sample, and when the free carbon particles are adsorbed to the surface of the microelectrode array sensor, an adsorption signal is generated; and the signal processing unit is used for extracting the characteristic frequency and intensity of the vibration of the carbon particles in the adsorption signal, and classifying the carbon particles according to the characteristic frequency and intensity of the carbon particles. The device is compact in structure, the maintenance cost is reduced, and the operation process is simplified.

The utility model provides an on-line rotary viscometer, which belongs to the technical field of viscosity measuring instruments and comprises a measuring chamber, a rotor, a stator, a driving component and a detecting piece, and the measuring chamber is suitable for being communicated with a pipeline to be measured; the rotor is arranged in the measuring chamber, the rotor is of a cylinder structure with a cavity inside, and a plurality of liquid inlet grooves communicated with the cavity are formed in the side wall of the rotor; the stator is rotatably arranged in the cavity, and a medium channel is arranged between the stator and the rotor; the driving assembly is connected with the rotor, a medium flowing through the medium channel can rotate around the stator under the rotating action of the rotor, and the rotating medium can drive the stator to rotate or drive the stator to generate a rotating trend; the detection piece detects the viscous torque borne by the stator during rotation. According to the online rotary viscometer provided by the utility model, the rotation of the stator is driven by a medium without friction loss caused by a transmission process, so that the viscous torque during the rotation of the stator is accurately obtained, and the accuracy of a result is improved.

The invention relates to a method and system for determining the water content of a safe shutdown boundary of a submarine mixed transportation pipeline, and the method comprises the steps: carrying out a physical property parameter test, and taking the physical property parameter as a multiphase flow simulation input parameter; carrying out submarine pipeline shutdown simulation on the basis of the physical property parameter test data, and obtaining oil section temperatures and spatial distribution characteristics at different water depth positions in the pipeline; carrying out an oil-water layering characteristic experiment under a temperature control condition to obtain an oil-water emulsion layering characteristic; sampling oil sections with different layer heights in the oil-water layering characteristic experiment, and testing the water content and simulating the yield / slip characteristic at the oil section temperature based on the temperature distribution of the oil sections; according to the yield / slip stress of the oil sections with different layer heights, carrying out segmented calculation and weighted accumulation to obtain an overall starting stress; on the basis of the overall starting stress, the safe shutdown boundary moisture content is determined in combination with pressure boundary conditions. The method can effectively guide the safe transportation stopping and restarting of the submarine pipeline, optimizes the replacement operation after the transportation stopping of the submarine pipeline, and improves the operation safety and economy.

The utility model discloses a detection device for an asphalt test, which belongs to the technical field of asphalt tests, aims at solving the problems that in the prior art, part of asphalt materials are easy to solidify and remain on a test rotor of a viscometer and an external protection frame, and the residual materials are inconvenient to effectively clean, and comprises a rotary viscometer body, a test rotor is arranged at the lower end of the rotational viscometer body, a protective frame is arranged at the lower end of the rotational viscometer body outside the test rotor, and a heating stripping mechanism sleeves the lower end part of the rotational viscometer body and comprises a heat conduction sleeve shell and an electric heating block; according to the utility model, through the arranged heating stripping mechanism, heat can be transferred to the heat conduction sleeve shell when the electric heating block is electrified for heating, so that the heat conduction sleeve shell can heat and remove residual asphalt materials on the surface of the test rotor and the protection frame after being in contact with the test rotor and the protection frame; therefore, the condition that residual materials are difficult to clean due to curing of asphalt materials on the surfaces of the test rotor and the protection frame is improved.

The invention relates to the technical field of detection devices, and discloses a paint coating detection device which comprises an outer shell, a bottom column is fixedly mounted at the bottom end of the interior of the outer shell, and a cross rod is movably mounted in the bottom column. The two pairs of collecting boxes are rotatably arranged on the bottom column through the cross rod, so that the coating in the coating containing funnels correspondingly arranged on the upper portion directly falls into the collecting boxes in the downward flowing process, and the collecting boxes on the two sides can be used for collecting the coating in the flowing and falling process of the coating; according to the falling amount of the coating, the collecting box containing the coating with good fluidity at one end is directly pressed down, the other side is warped up, and due to the fact that the collecting box is synchronously controlled through the driving gear, it can be guaranteed that the two coating containing funnels can rotate by the same angle at the same time; therefore, the influence of other factors is eliminated in the flowability detection process of the coating contained in the coating containing funnel.