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1282results about "Machine valve testing" patented technology
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Valve vibration impact test method and system based on digital twinning
The invention discloses a valve vibration impact test method and system based on digital twinning, and belongs to the technical field of industrial equipment test and evaluation. The method comprises the following steps: firstly, deploying a multi-source sensor network, constructing a physical entity layer of a valve vibration impact test, collecting and preprocessing various physical monitoring data, and constructing a digital twinborn body layer; secondly, real-time data assimilation with a physical test bed is realized through parameter calibration and updating of a digital twinborn model based on various physical monitoring data and the digital twinborn layer; and finally, executing a virtual vibration impact test, realizing prediction and evaluation of global response and key part information of the physical entity according to a test result, and finally realizing interaction and performance prediction. And the valve vibration impact test is realized through the valve vibration impact test system. According to the method, the fault diagnosis capability, the early damage identification capability and the valve state prediction and evaluation capability can be remarkably improved, and the defect of insufficient field monitoring information is overcome.
Owner:DALIAN UNIV OF TECH
Response time testing method and system of electro-hydraulic proportional valve
The invention relates to the technical field of response time testing of electro-hydraulic proportional valves, and discloses a response time testing method and system of an electro-hydraulic proportional valve, and the method comprises the steps: collecting multi-point pressure, step response, pipeline length and medium parameters, and unifying the time reference to obtain an original pressure sequence; constructing an inverse filter spectrum to remove damping interference so as to recover a sharp peak value; lagging offset is calculated according to pipeline and medium parameters, time delay compensation is carried out, and an alignment sequence is obtained; intercepting a non-stationary segment to eliminate residual delay deviation; constructing a response dynamic data set, extracting harmonic frequency domain representation, and reconstructing a pressure sequence through inverse transformation and superposition of compensation factors; and calculating a deviation integral quantity, adjusting a dynamic compensation parameter, performing weighted correction, and outputting an optimized reconstruction response sequence. According to the method, accurate reconstruction of the real pressure response of the proportional valve can be realized, so that the accuracy and the reliability of response time testing are improved.
Owner:SUZHOU MOLI AUTOMATIC CONTROL TECH
Online performance testing method for breather valve for oil and gas storage and transportation
The invention relates to the technical field of sealing performance testing, in particular to a breather valve performance online testing method for oil and gas storage and transportation, which comprises the following steps: acquiring a vibration signal of a breather valve body, a multi-band acoustic signal of a valve port and a total pressure signal in a storage tank; performing multi-scale complex wavelet decomposition, and constructing a time frequency-energy correlation feature tensor; the total pressure signal and the time frequency-energy correlation characteristic tensor serve as a combined observation value and are input into a preset continuous Gaussian mixture hidden Markov model containing four hidden states of sealing, transient micro-leakage, continuous leakage and full-amount opening, and the posterior probability is calculated; and calculating to obtain a real-time leakage rate. According to the method, the opening pressure can be accurately determined, the real-time leakage rate can be quantitatively calculated after the leakage state is recognized, comprehensive and accurate quantitative online evaluation of core performance parameters of the breather valve is achieved, and the multi-source information fusion degree and the anti-interference capacity are improved.
Owner:TAICANG YANGHONG PETROCHEMICAL CO LTD
Air tightness detection device for pressure balance type plug valve
ActiveCN121275240ADetection of fluid at leakage pointMachine valve testingAxial displacementPressure balance
The invention provides an air tightness detection device of a pressure balance type plug valve, and relates to the technical field of valve air tightness detection. An air tightness detection device of a pressure balance type plug valve comprises a water pool, an adjusting mechanism, two clamping mechanisms and an end sealing mechanism, the end sealing mechanism comprises two groups of positioning assemblies and two groups of sealing assemblies, and the positioning assemblies and the sealing assemblies are communicated and used for enabling the sealing assemblies to generate axial displacement. The sealing assembly is coaxially arranged in multiple layers, the structures of all the layers of the sealing assembly are the same, the sealing assembly is used for being inserted into an inlet and an outlet of a plug valve to be detected, and by means of the multi-layer design of the sealing assembly and the design that the positioning assembly enables each layer of the sealing assembly to generate independent axial displacement, the plug valve to be detected can be detected. The sealing assembly is adapted to plug valves to be detected with different calibers; the sealing assembly has the action of expansion under the action of air source pressure, so that the part inserted into the plug valve to be detected is in sealed connection with the plug valve, and the sealing performance is ensured.
Owner:JIANGSU MINGTONG FULU FLUID CONTROL EQUIP CO LTD
Check valve combined hydrogen storage system durability test bench and test method
The invention relates to the technical field of hydrogen storage system testing, and discloses a one-way valve combined hydrogen storage system durability test bench and a test method. A main control computer of the rack is used for configuring test task parameters, coordinating operation of subsystems and processing test data; the high-pressure hydrogen supply subsystem comprises a pressure-adjustable hydrogen source and a pressure closed-loop control module, and can apply accurate and controllable hydrogen pressure to the inlet end of the tested system according to test task parameters; the multi-channel valve state acquisition subsystem acquires the inlet and outlet pressure of the valve, the surface temperature of the valve body and vibration spectrum data in real time through pressure, temperature and vibration sensor arrays arranged at the valves, and transmits the data to the main control computer; the valve action driving subsystem comprises a high-speed electromagnetic actuator array and a displacement feedback module and can drive all valves to execute a preset opening degree sequence and opening and closing frequency. And the durability evaluation subsystem is embedded into the main control computer, calculates the accumulated damage degree of the valve and predicts the residual life cycle.
Owner:SHANGHAI QINGRAY NEW ENERGY TECHNOLOGY CO LTD
Valve pressure testing device and using method thereof
The invention relates to the technical field of valve pressure testing, in particular to a valve pressure testing device and a using method thereof.The valve pressure testing device comprises a detection water tank, a supporting frame is arranged on the detection water tank, a rotating support structure is rotationally arranged on the supporting frame, and an intermittent driving mechanism capable of driving the rotating support structure to intermittently rotate at all stations is arranged on the supporting frame; a plurality of clamping structures used for positioning and clamping the ball valve main body are arranged on the rotating support structure in the circumferential direction of the rotating support structure, and inflation and deflation pipeline structures used for inflating and deflating the ball valve main body are arranged between the clamping structures; the detection water tank, the rotary support structure, the intermittent driving mechanism, the clamping structure, the inflation and deflation pipeline structure, the feeding slide way structure, the discharging slide way structure and the like cooperate and cooperate with one another to complete exhaust and inflation at the same time, gas recycling can be achieved, exhaust operation and time are saved, and full-process automatic testing can be achieved.
Owner:浙江超众阀门制造有限公司
Intelligent fault diagnosis method and system for electromagnetic valve test data and computer program product
The invention provides an intelligent fault diagnosis method and system for electromagnetic valve test data and a computer program product, and relates to the technical field of electromagnetic valve fault diagnos.The intelligent fault diagnosis method comprises the steps that firstly, multi-dimensional test data of an electromagnetic valve under multiple working condition combinations are collected, and multiple types of data including action response and the like are contained; a data behavior collaboration model is constructed based on the behavior collaboration relation between the data, and laws such as synchronous response are embodied; an abnormal collaboration chain deviating from a normal collaboration mode is mined from the model, and abnormal performance of each link is determined; reversely deducing a fault core cause through the abnormal collaborative chain, and determining information such as cause types; and finally, generating an executable instruction sequence based on the fault core inducement and the abnormal collaborative chain conduction characteristic, and controlling the maintenance system to execute fault handling operation. Therefore, faults can be comprehensively and accurately diagnosed, and the operation reliability and the system stability of the electromagnetic valve are improved.
Owner:PLIMER INTELLIGENT TECH (SHANGHAI) CO LTD
Safety valve full life cycle fault detection method and system
ActiveCN120927280ABatteries circuit arrangementsMachine valve testingFull life cycleData acquisition
The invention relates to the technical field of safety valve fault monitoring, in particular to a safety valve full-life-cycle fault detection method and system, and aims to solve the problems that sudden safety accidents occur frequently due to the fact that a traditional method depends on leakage flow monitoring and cannot capture hidden faults such as valve element jamming and spring fatigue, a power supply system mostly adopts a single power generation mode, and the power consumption is low. In a low discharge scene, the electric quantity of the energy storage module is used up, and monitoring interruption is caused. According to the invention, the problems of safety valve hidden fault monitoring deficiency and unstable power supply are effectively solved. By means of multi-dimensional data collection, spring elasticity attenuation and valve element movement abnormity can be found in advance, and faults are prevented from being evolved into serious leakage. The composite power supply system maintains basic monitoring in the non-discharge stage, energy is quickly supplemented in the discharge stage, and continuous operation of the whole life cycle is guaranteed. A model analysis result can guide maintenance personnel to accurately position a fault part, and unnecessary shutdown maintenance is reduced.
Owner:YUEQING WEILONG MINING EQUIP CO LTD
Ultrasonic detection method for leakage rate of fuel control valve of aero-engine
ActiveCN120651437ADetection of fluid at leakage pointGas-turbine engine testingVisual presentationDeep belief network
The invention relates to the technical field of ultrasonic detection, and provides an aero-engine fuel control valve leakage amount ultrasonic detection method, which forms a coherent technical link through leakage ultrasonic signal acquisition, leakage signal separation, leakage feature extraction, leakage area positioning, offset compensation and cross validation of a sensor, and the links are mutually verified and optimized. A leakage signal is separated through a dynamic threshold value, the identification degree of a deep belief network is enhanced through multi-dimensional features, environment interference is compensated and corrected through working condition parameters, positioning deviation caused by single-link error accumulation in a traditional method is effectively restrained, accurate capturing and positioning of a micro leakage signal are achieved, and the method is suitable for large-scale popularization and application. The leakage thermodynamic diagram integrates leakage rate grading, coarse positioning area and micro leakage point information, the analysis and decision-making time of maintenance personnel is greatly shortened through a visual presentation mode, and rapid interpretation of fault positions and severity is achieved.
Owner:SHANGHAI HANGSHU INTELLIGENT TECH CO LTD
Abnormality detection method and system for refrigeration valve
The invention relates to the technical field of data processing, in particular to an anomaly detection method and system for a refrigeration valve, and the method comprises the steps: obtaining the preprocessed operation data of the refrigeration valve, and for any data point in the operation data, calculating the sparse degree of the data point according to the distribution state of the data point in a local region; meanwhile, constructing a time sequence adjacent reference set of the data points, and obtaining an initial abnormal score of each data point in the adjacent reference set by using an LOF algorithm; constructing a trend anomaly degree according to the initial anomaly score of the data point in the time sequence adjacent reference set and the change of the data value; a preset initial abnormal threshold value is adjusted based on the trend abnormal degree and the sparse degree to obtain a dynamic threshold value, the dynamic threshold value is in negative correlation with the trend abnormal degree, and the operation data of the refrigeration valve are judged based on the dynamic threshold value. The method has the effect of improving the abnormality detection accuracy of the refrigeration valve.
Owner:SHANDONG DOFUN REFRIGERATION TECH CO LTD
Fault monitoring sealing ball valve
The invention discloses a fault monitoring sealing ball valve, belongs to the technical field of ball valves, and solves the problems that a self-adaptive compensation mechanism of an intelligent valve positioner can cover the degradation process of mechanical wear of a pneumatic sealing ball valve quietly during long-term operation, and finally sudden control instability is caused due to the fact that nonlinear wear exceeds a compensation limit. Comprising a valve body, a pneumatic actuator arranged on the valve body, a valve rod which is in transmission connection with an output shaft of the pneumatic actuator and located in the valve body, a valve ball fixedly connected with the valve rod and a fault prediction circuit. The fault prediction circuit comprises a multi-dimensional physical sensing array module, a high-speed synchronous acquisition and preprocessing module, a core signal processing and fusion analysis module, an artificial intelligence coprocessor module and a predictive maintenance decision and life cycle management module. Multi-dimensional signals are collected in real time, valve health is evaluated after fusion analysis, and early warning and maintenance decisions are output.
Owner:ZHEJIANG XUTENG VALVE CO LTD
Method and Apparatus for Testing Vent Caps
Owner:THE BOEING CO
Detection method and system for automatic drain valve
The invention provides a detection method and system for an automatic drain valve, and relates to the technical field of equipment testing. The method comprises the following steps: collecting working data of a drain valve to be detected; determining a flow peak change trend and a drainage efficiency attenuation degree based on flow data of continuous multiple drainage records, and generating an impurity deposition index; generating an impurity stripping index based on the instantaneous change rate of the flow velocity data and the variable quantity of the flow data, and determining a first impurity deposition degree in combination with an impurity deposition index; determining a vibration anomaly factor and an acoustic anomaly factor based on the vibration data and the acoustic data, and determining an impurity anomaly score in combination with the first impurity deposition degree; determining the working intensity based on the vibration data, the pressure data and the liquid level data, obtaining the drainage frequency of the drainage valve to be detected after last maintenance, and determining the fault probability based on the working intensity, the drainage frequency and the impurity anomaly score; and predicting the fault condition of the to-be-detected drain valve based on the fault probability. The fault detection accuracy is improved.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY
Diaphragm valve flow testing system and method
PendingCN121252909AMachine valve testingVolume/mass flow by differential pressureDiaphragm valveThermoscope
The invention discloses a diaphragm valve flow test system and method, and the system comprises a first test assembly and a second test assembly, and a first pressure measurement port of the first test assembly and a second pressure measurement port of the second test assembly are respectively communicated with a to-be-tested valve; a first test pipeline communicated with the first test assembly is provided with a circulation path in a first direction; a second testing pipeline communicated with the second testing assembly is provided with a circulation path in the first direction. The upstream and downstream pressure values of the to-be-tested valve can be accurately detected through the first pressure gauge and the second pressure gauge, and the gas flow value is detected through the flow meter and substituted into a calculation formula to obtain an accurate flow coefficient value; the upstream first testing assembly and the downstream pressure measuring device are arranged at a specific distance according to the pipe diameter of the communicating pipeline, and the accuracy of the pressure value can be effectively ensured through the limitation of the pipe diameter and the distance; the actual temperature value of the fluid in the test system pipeline is monitored through the thermometer, and the influence of the temperature on the test result is effectively reduced.
Owner:SHANGHAI JUKE FLUID CONTROL CO LTD
Pressure testing device and testing method for valve production
PendingCN120651519AMachine valve testingMaterial strength using tensile/compressive forcesVALVE PORTPhysics
Owner:TEL VALVE HIGH-TECH CO LTD
Valve pressure testing device
InactiveCN121231050AMachine valve testingMaterial strength using tensile/compressive forcesHydraulic cylinderThreaded rod
The invention relates to the field of valve pressure testing, and discloses a valve pressure testing device which comprises a rack, the outer wall of the rack is rotatably connected with a first hydraulic cylinder, the output end of the first hydraulic cylinder is rotatably connected with a first protective shell, and the inner bottom of the rack is fixedly connected with a second hydraulic cylinder. A supporting bottom plate is fixedly connected to the output end of the second hydraulic cylinder, a second protective shell is fixedly connected to the top of the supporting bottom plate, fixing plates are installed outside the first protective shell and the second protective shell, and clamping assemblies are installed on the opposite sides of the two fixing plates. Transmission assemblies are arranged on the sides, away from each other, of the two fixing plates. The first threaded rod rotates to drive the fixing ring and the elastic sealing ring to penetrate into the valve, compared with external sealing, the deep design enables the elastic sealing ring to make direct contact with the sealing face in the valve, and possible irregular structure or impurity interference outside the valve is avoided.
Owner:YANTAI WANTONG VALVE CO LTD
Fault diagnosis method and system for automatic tensioning control valve of scraper conveyor
The invention relates to the technical field of mechanical equipment fault diagnosis, and discloses a fault diagnosis method and system for an automatic tensioning control valve of a scraper conveyor. The method comprises the following steps: acquiring pressure and flow data of a main flow channel and an auxiliary flow channel through a sensor array, and extracting frequency domain characteristics to obtain a standardized frequency spectrum; detecting parameter coupling abnormity based on the spectrum cross correlation coefficient and generating an abnormal index; environment interference and medium viscosity data are fused, and non-linear feature distribution and correction deviation representing the mechanical state are obtained through classification and filtering analysis; matching the correction deviation with a preset fault mode, determining a fault type, and generating a fault positioning coordinate in a three-dimensional space by using an optimization algorithm; and finally, performing fluid dynamic simulation through the high-fidelity virtual model to verify the coordinate stability, and outputting accurate early warning when conditions are met. Through cooperation of multi-source information fusion and an intelligent algorithm, the accuracy of early-stage internal fault diagnosis of the complex double-flow-channel valve is improved.
Owner:NINGBO LONG WALL FLUID KINETIC SCI TECH
Shock absorber valve system adjusting method based on artificial intelligence technology, product, equipment and storage medium
The invention relates to the technical field of image processing, in particular to a damper valve system adjustment method based on an artificial intelligence technology, a product, equipment and a storage medium. The method comprises the steps that parameter combinations of all valve systems of the shock absorber are collected; performing data quantization on the parameter combination to obtain a feature combination; and inputting the feature combination into a neural network model to obtain a change curve of the damping force along with the piston speed predicted by the neural network. According to the method, the external characteristic functions of the passive hydraulic shock absorber under different valve system structures are predicted through the artificial intelligence algorithm, and the number of tests in the chassis adjustment process is reduced.
Owner:CATARC TIANJIN AUTOMOTIVE ENG RES INST CO LTD +2
Intelligent analysis method and system for valve performance test data
The invention belongs to the technical field of data processing, and particularly relates to an intelligent analysis method and system for valve performance test data, and the method comprises the steps: constructing a dynamic sensitivity factor capable of reflecting the system stability through analyzing the change rate of a flow time sequence and the fluctuation of a current time sequence, and generating a fatigue factor in combination with a pressure range; further, an abnormal pressure peak value caused by the water hammer effect is identified and quantified, and a fatigue factor is corrected to obtain a degradation acceleration factor which can better reflect real physical wear; finally, the composite dynamic features and the traditional static features are jointly input into a GBDT model for training, so that early failure symptoms can be captured, and the accuracy and reliability of prediction of the remaining service life of the valve are improved.
Owner:WUHAN TORLEO INTELLIGENT CO LTD
EGR (Exhaust Gas Recirculation) valve clamping stagnation detection and calibration device and detection and calibration method
PendingCN121409597AMachine valve testingExhaust gas recirculationControl engineeringExhaust gas recirculation
The invention discloses a detection and calibration device and method for clamping stagnation of an EGR (Exhaust Gas Recirculation) valve, and the method comprises the steps: firstly, dismounting the EGR valve of an engine, and dismounting the EGR valve into an actuator and a valve body; the first component is installed on the original installation face, in butt joint with the valve body, of the actuator, and the distance between the plane at one end of a push rod of the actuator and the installation plane of the actuator is adjusted and fixed to any numerical value; the second component is installed on the original installation face, where the actuator is installed, of the valve body, and the distance between the end face, connected with the bowl body, of the adjusting bolt unit and the installation face of the valve body is adjusted to be equal to the distance between the plane at one end of a push rod of the actuator and the installation plane of the actuator; and then detection is carried out according to an EGR valve clamping stagnation fault test method. According to the detection and calibration device and method for clamping stagnation of the EGR valve, the EGR valve cannot be damaged in the EGR valve detection process, and clamping stagnation faults can be set randomly in the stroke of the EGR valve.
Owner:GUANGXI YUCHAI MASCH CO LTD
Quick response capability detection device for high-precision electromagnetic valve
ActiveCN121298231AMachine valve testingFluid pressure measurement by electric/magnetic elementsWorking environmentOptical fiber probe
The invention discloses a quick response capability detection device for a high-precision electromagnetic valve, and relates to the technical field of electromagnetic valve detection, the quick response capability detection device comprises a positioning frame and a transmission table, a sliding rod arranged on the positioning frame is sleeved with the transmission table in a sliding connection mode, and valve body positioning tools are fixed to the side wall of the transmission table at equal intervals through bolts; the miniature optical fiber sensing module and the high-frequency response pressure sensor are integrated, synchronous measurement of valve element displacement and outlet pressure is achieved, the limitation of single parameter measurement is overcome, meanwhile, the miniature optical fiber probe is adopted for detecting the valve element displacement through the miniature mounting hole in the valve body, the influence on valve element movement is reduced, and the measurement precision is improved. The problem that the structure of the electromagnetic valve needs to be greatly changed in a traditional direct detection method is avoided, the drift diameter of a flow channel is adjusted through rotation of a layer sleeve block in the phase change regulation and control mechanism in the initial detection stage, multi-working-condition simulation from low-pressure large flow to high-pressure small flow is achieved, and the detection condition is closer to the actual working environment of the electromagnetic valve.
Owner:ANHUI GAOJIAN MASCH TECH CO LTD
Low-temperature valve heat leakage testing equipment and testing method
The invention relates to the technical field of low-temperature valve testing, in particular to low-temperature valve heat leakage testing equipment and method.The equipment comprises a double-chamber container internally provided with a testing chamber and a storage tank chamber which are isolated, a liquid nitrogen storage tank is located in the storage tank chamber and connected with a blow-down pipe and a liquid inlet pipe which penetrate out of the storage tank chamber, and the liquid nitrogen storage tank is connected with a liquid outlet pipe; the test air inlet pipe is communicated with a valve to be tested or a replacement pipeline; the evaporation measurement device is communicated with the test gas outlet pipe and the liquid nitrogen storage tank, the test gas outlet pipe is located in the test cavity and used for being communicated with a valve to be tested or a replacement pipeline, and the evaporation measurement device is used for measuring the evaporation capacity of liquid nitrogen; the vacuum generating device is communicated with the testing chamber and the storage tank chamber through a vacuumizing pipe, and the vacuum degree of the testing chamber and the vacuum degree of the storage tank chamber are independently controlled. The device effectively eliminates the influence of heat leakage of the device and environmental factors, achieves the accurate testing of the heat leakage of the low-temperature valve, achieves the more accurate evaluation of the performance of the valve, and is suitable for the performance evaluation scene of a cryogenic medium valve.
Owner:HANGZHOU HANGYANG KOSO PUMP & VALVE
Hydraulic hoist pump station fault diagnosis method based on sound and vibration signal fusion
PendingCN120931270ADetection of fluid at leakage pointSubsonic/sonic/ultrasonic wave measurementWavelet denoisingFrequency spectrum
A hydraulic hoist pump station fault diagnosis method based on sound and vibration signal fusion comprises the following steps that 1, a vibration sensor and a sound sensor are arranged on a preset point position of a hydraulic hoist pump station, and vibration signals and sound signals in the operation process of the pump station are synchronously collected; step 2, carrying out wavelet denoising processing of adaptive threshold optimization on the sound signal, then carrying out variational mode decomposition, and extracting a spectrum entropy feature of a mode component after decomposition; 3, performing adaptive empirical mode decomposition on the vibration signal, and extracting a composite feature formed by a local mean decomposition energy operator and a morphological gradient of an IMF component after decomposition; the method is used for solving the problems that in existing hydraulic hoist pump station fault diagnosis, signal diagnosis information of a single sensor is limited, the capacity of a traditional method for processing non-stable sound vibration signals is insufficient, noise separation is difficult, feature fusion is complex, diagnosis precision is low, and the requirement for on-site real-time monitoring cannot be met.
Owner:CHINA YANGTZE POWER +1
State monitoring and comprehensive diagnosis method for arc-shaped opening and closing gate
The invention discloses a state monitoring and comprehensive diagnosis method for an arc-shaped opening and closing gate, and relates to the technical field of online detection and fault diagnosis. Comprising the following steps: installing a plurality of sensors at key parts of an arc-shaped opening and closing gate, collecting displacement data, stress data, vibration data, water pressure data and temperature data of the gate in real time, carrying out denoising, filtering and normalization processing on the collected original data, and adopting a signal processing and machine learning algorithm to obtain a real-time monitoring result of the arc-shaped opening and closing gate; carrying out feature solving on the preprocessed data to obtain a feature vector; multiple sensors for displacement, stress, vibration, water pressure and temperature are mounted at key parts of the arc-shaped opening and closing gate, so that multi-parameter real-time acquisition is realized, the limitation of single-parameter monitoring in the prior art is solved, and multi-dimensional information such as displacement change, stress distribution, vibration characteristics, water pressure fluctuation and temperature abnormity in the operation of the gate can be comprehensively captured; and potential safety hazards caused by missed diagnosis of a single parameter are effectively avoided.
Owner:BEIJING CHANGSHUI CONSTRUCTION CO LTD +1
Extra-high pressure safety valve off-line detection method and system
The invention provides an extra-high pressure safety valve off-line detection method and system, and belongs to the technical field of off-line detection, and the method comprises the steps: detection preparation, starting pressure detection, pressure maintaining performance detection and safety control, and in the detection process, if the system pressure exceeds an overpressure protection value, pressurization is automatically stopped, and an alarm is triggered. Through precise detection process, multi-dimensional safety guarantee and full-process data management and control, deep detection and reliable evaluation of the safety valve performance are realized, a defense line is built for safe operation of extra-high voltage equipment, and the system has significant practical value and technical advantages.
Owner:CHONGQING JIULUE TECHNOLOGY CO LTD
Multi-mode quality inspection system based on industrial valve production
The invention relates to a multi-mode quality inspection system based on industrial valve production, in particular to the field of industrial intelligent manufacturing, and can significantly improve the accuracy and reliability of industrial valve quality inspection by setting a space-time alignment module, a feature fusion module, a fusion strategy optimization module and a quality decision and model updating module. Various fine defects of the valve can be accurately identified through efficient fusion and intelligent analysis of multi-modal data; the self-adaptive optimization mechanism ensures the stable performance of the system under different production working conditions, effectively reduces the missed detection and misjudgment risks, guarantees the product quality, reduces the production waste and potential safety hazards, prolongs the effective service period of the system through continuous self-optimization, and achieves the efficient and high-quality closed-loop management in the intelligent manufacturing process.
Owner:DAFENG OKAY FLUID MACHINERY
Testing device and testing method for vertical valve
ActiveCN121068194AMeasurement of fluid loss/gain rateMachine valve testingClassical mechanicsStructural engineering
The invention discloses a testing device and a testing method for a vertical valve, and relates to the technical field of valve detection.The testing device comprises a bearing mechanism, two lower testing mechanisms are arranged at the bottom of the inner side of the bearing mechanism, and upper testing mechanisms located over the adjacent lower testing mechanisms are arranged at the top of the inner side of the bearing mechanism; the left side of the upper test mechanism is provided with an up-down traction mechanism, and the inner side of the up-down traction mechanism is in transmission connection with a push-pull mechanism which is in transmission connection with the left side of the adjacent lower test mechanism. The up-down traction mechanism comprises an extension plate fixedly arranged on the left side of the sealing cover, a traction sleeve is slidably arranged on the inner side of the extension plate in the vertical direction, and an annular limiting groove is formed in the middle of the outer side of the traction sleeve. According to the invention, the time interval between two adjacent test operations can be effectively shortened while the taking and placing difficulty of the tested check valve is reduced, so that the overall test efficiency is improved, and the method is suitable for continuous tests of valve manufacturers.
Owner:KAIXIN PIPELINE TECH CO LTD +1
Flat gate valve performance detection device
PendingCN120927276ADetection of fluid at leakage pointMeasurement of fluid loss/gain rateAnti jammingAir tightness
The invention discloses a flat gate valve performance detection device, and belongs to the technical field of gate valve detection devices, the flat gate valve performance detection device comprises a detection table, the top of the detection table is provided with a caliber detection mechanism, and the bottom of the detection table is provided with an air tightness auxiliary detection mechanism; according to the invention, through the arranged aperture detection mechanism, the multi-station alternate conveying detection of the flat gate valve body is realized, the detection efficiency and the automation level are significantly improved, and through a mechanical feedback structure formed by the extrusion plate, the reset spring, the push type trigger switch and other components, the detection precision can be greatly improved on the premise of no complex sensor. Structural elasticity changes are matched with displacement triggering, structural abnormity of the gate valve to be detected is accurately judged, sound-light alarm is given out, dependence of a detection system on circuit stability is reduced, meanwhile, the anti-interference capacity and the capacity of adapting to severe industrial environments of the device are enhanced, alarm response is fast, structural configuration is stable, and batched flat valve body rotary detection is facilitated.
Owner:ANHUI TUNXI HIGH PRESSURE VALVE
Efficient detection device for electric stop valve
ActiveCN223741850UMachine valve testingFluid-tightness measurement using fluid/vacuumElectric machineryAutomation
The utility model relates to the technical field of electric stop valve detection, and discloses an electric stop valve high-efficiency detection device which comprises a rack, one side of the rack is provided with a conveying belt, the upper end of the conveying belt is provided with a base, the base is internally provided with a clamping assembly, the upper end of the clamping assembly is provided with an electric stop valve, and the upper end of the clamping assembly is provided with a clamping assembly. Pipelines are arranged on the two sides of the electric stop valve, and a detection assembly is installed on one side of the rack; the clamping assembly comprises a motor, a lead screw is installed at the output end of the motor, and the outer side of the lead screw is sleeved with a moving block. The clamping assembly is matched with the conveying belt, the electric stop valve is stably and accurately conveyed to a detection position for detection operation, the detection precision is guaranteed while the automation performance is improved, the performance of the electric stop valve is automatically detected through the detection assembly, and the detection efficiency is improved to a certain extent.
Owner:JIANGSU SUYAN VALVE MASCH CO LTD
Hydraulic turbine set valve fault diagnosis method, system, equipment and product
The invention provides a hydraulic turbine set valve fault diagnosis method, system, equipment and product, and is applied to the field of hydroelectric equipment fault diagnosis. On one side of the edge end, an initial voiceprint signal, an initial vibration signal and temperature data of a hydraulic turbine set valve are collected; taking the initial voiceprint signal as a reference signal, and performing noise reduction processing on the initial vibration signal based on the time domain correlation between the fluid noise in the initial voiceprint signal and the first noise in the initial vibration signal; by taking the vibration noise reduction signal as a reference signal, performing noise reduction processing on the initial voiceprint signal based on the frequency domain correlation between the mechanical resonance noise in the vibration noise reduction signal and the second noise in the initial voiceprint signal; and based on the vibration noise reduction signal, the voiceprint noise reduction signal and the temperature data, performing fault diagnosis on the hydraulic turbine set valve to obtain a fault diagnosis result. Therefore, fault diagnosis is carried out through cooperative noise reduction of the voiceprint signal and the vibration signal in combination with multi-dimensional data, and the fault diagnosis accuracy of the hydraulic turbine set valve is improved.
Owner:GUIZHOU WUJIANG HYDROPOWER DEV