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30 results about "Failure prevention" patented technology

Oil seal press-fitting abnormity real-time detection method based on pressure displacement curve analysis

PendingCN121558095AMeasurement devicesFailure preventionThermodynamics
The invention provides an oil seal press-fitting abnormity real-time detection method based on pressure displacement curve analysis, and relates to the technical field of oil seal assembly control. Pressure displacement data acquisition is executed and a real-time pressure displacement curve is fitted when press-fitting equipment is started; based on displacement progress threshold triggering stage switching of the time sequence displacement data, an association stage characteristic curve is called from the oil seal press-fitting reference template; comparing the characteristic curve in the association stage with the real-time pressure displacement curve to solve a real-time curve deviation vector; and according to the real-time curve deviation vector mapping physical failure abnormal mode, self-adaptive adjustment of oil seal press-fitting process parameters is triggered. The technical problems that in the prior art, a continuous press-fitting process is adopted for oil seal assembly, rubber stress concentration is caused, hydraulic locking is formed due to lubricant retention, and the press-fitting depth is out of control are solved. Physical failure prevention in the oil seal assembly process is achieved, it is guaranteed that the press-fitting depth meets the technological specification tolerance in the whole process, oil seal assembly defects are restrained, and the sealing reliability of an engine is improved.
Owner:GUANGXI YUCHAI MASCH CO LTD

Network failure prevention

ActiveUS12652211B2TransmissionFailure preventionComputer network
Techniques for mitigating network failures (e.g., SLA violations, service degradations, network outages, etc.) based on output(s) from a predictive network system. The techniques may include determining that a failure is predicted to occur in a network and determining a correlation between the failure and a previous failure that occurred in the network. In examples, the correlation may be determined using a machine-learned model. The techniques may also include determining, based at least in part on the correlation, a condition contributing to the failure. In this way, prior to occurrence of the failure, a parameter associated with the network may be altered based at least in part on the condition to mitigate or otherwise prevent the failure.
Owner:CISCO TECHNOLOGY INC

Drop-off failure prevention of a microswitch

ActiveCN224554221ULight touchFailure prevention
The utility model discloses a kind of light touch switches of falling anti-failure, it is related to electronic component technical field.It includes support and base, support is rectangular groove body, support front end is equipped with positioning hole, support left side bottom interval is equipped with two first support feet, support right side bottom interval is equipped with two second support feet, first support foot and second support foot respectively extend outward and present 90 degrees bending, support rear end is equipped with limit baffle;Base is located in support, base front end movably connects with the pressing handle of silica gel material, pressing handle passes through positioning hole, base front end is also equipped with multiple fixed columns, multiple electrically-conductive terminals are installed in base, electrically-conductive terminal is equipped with terminal pin, terminal pin extends backward and presents 90 degrees bending, terminal pin is brass material, and its surface is covered with gold plating layer by electroplating process.The utility model reduces the probability that light touch switch appears functional failure or damage due to falling, avoids short circuit of positive and negative electrode conduction of soldering pin.
Owner:DONGGUAN LINBANG ELECTRONIC TECH CO LTD

Intelligent dosing platform system with device lifecycle management, calibration, and predictive maintenance

PendingUS20260144931A1Medical communicationMedical data miningFailure preventionElectrical battery
An intelligent dosing platform system for device lifecycle management and predictive maintenance comprising intelligent injection devices with sensors configured to detect operational parameters, device monitoring modules tracking sensor calibration state, battery life metrics, and device performance data. A predictive analytics module analyzes device operational data to forecast maintenance timing, sensor calibration requirements, and device replacement needs. The system includes maintenance scheduling modules that generate automated maintenance alerts based on predicted device performance degradation. A lifecycle documentation module maintains comprehensive device history records including deployment dates, calibration events, maintenance activities, and retirement tracking. The system optimizes device fleet performance through proactive maintenance scheduling, minimizes device downtime through predictive failure prevention, ensures patient safety through continuous device integrity monitoring, and maintains regulatory compliance through comprehensive lifecycle documentation and firmware management capabilities.
Owner:DATADOSE LLC

Method, system and computer program for preventing an electrical submersible pump failure

PCT designated stageWO2026132877A1Fluid removalPump controlFailure preventionAnomaly detection
The present disclosure relates to a computer-implemented method for preventing an electrical submersible pump, ESP, failure, the method comprising obtaining real-time operation sensor data from one or more sensors (110), the real-time operation sensor data being indicative of the operation of the ESP, detecting, by an abnormality detection artificial intelligence, Al, engine (220), at least one abnormality in the real-time operation sensor data (120), the abnormality indicating an abnormal event of the operation of the ESP, generating, by a physics characteristics Al engine (230), at least one operating characteristic of the ESP based at least on the abnormality and on a physical model of the ESP (130), determining, by a root cause analysis Al engine (240), at least one root cause of the ESP failure based at least on the at least one abnormality and the at least one operating characteristic (140), and generating at least one failure prevention measure to reduce the risk that the ESP failure occurs (150). In addition, the present disclosure relates to a corresponding computer system and to a corresponding computer program.
Owner:MATRIX JVCO LTD

Anti-outage connector

The utility model discloses an anti-outage connector, which comprises an insulating seat and a plurality of terminals arranged in the insulating seat, each terminal is provided with a first weld leg and a second weld leg, and the first weld leg and the second weld leg are exposed on the lower end face of the insulating seat and respectively form a first row of welding areas and a second row of welding areas; the lower end of the insulating seat is provided with a pad table and a riveting groove, the upper end face of the second welding leg abuts against the lower end face of the pad table, and the second welding leg is riveted and fixed in the riveting groove, so that the second welding leg is fixed at the lower end of the pad table, the phenomenon of terminal retreating in the process of inserting the connector with a paired connector can be effectively prevented, and the product quality is further improved. According to the utility model, the two rows of welding areas are welded and fixed with the PCB at the same time, so that the strength of a welding plate can be increased, the other welding leg can still achieve the conduction function required by the welding plate when missing welding occurs in any one of the first welding leg and the second welding leg in the terminal, the phenomenon of poor welding between the terminal and the PCB is completely avoided, and the reliability of the terminal is improved. And the high-performance power failure prevention effect is realized.
Owner:SUYING ELECTRCNICS (DONG GUAN) CO LTD

A tooth breakage failure prevention method and device based on laser peening, a terminal device, and a storage medium

PendingCN122279156ATooth root surfaceFailure prevention
This invention discloses a method, device, terminal equipment, and storage medium for preventing tooth breakage based on laser peening, belonging to the field of gear surface strengthening technology. The method involves: acquiring the pulsed laser parameters and impact path of the gear to be treated during laser peening; providing an energy absorption layer at the root of the gear tooth, which is covered by a constraint layer; generating a laser scanning command based on the pulsed laser parameters and impact path, and sending the laser scanning command to a laser generator to control the laser beam to scan, so that the laser beam penetrates the constraint layer and irradiates the energy absorption layer; after being irradiated, the energy absorption layer absorbs laser energy to form plasma, and the plasma generates an inwardly propagating shock wave under the constraint of the constraint layer, inducing plastic deformation at the gear tooth root position and forming a residual stress layer on the surface of the gear tooth root. Therefore, by implementing this invention, the problem of insufficient depth of the residual compressive stress layer on the tooth root surface in the prior art can be solved.
Owner:POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD

Cell sorter with overheat failure prevention

ActiveCN224467753UPeristaltic pumpFailure prevention
The utility model discloses a cell sorter of preventing overheat failure relates to cell sorter technical field, including cell sorting platform, cell sorting platform outer wall one side fixedly connected with a plurality of upper electromagnetic valve, and cell sorting platform top surface one side fixedly connected with a plurality of lower electromagnetic valve simultaneously, cell sorting platform top outer wall fixedly connected with a plurality of liquid bag hooks, and cell sorting platform top surface one side fixedly connected with display screen, cell sorting platform top surface one side fixedly connected with peristaltic pump, the utility model discloses when cell sorting platform continuous screening discernment cell, if temperature rises to need heat dissipation, operating personnel pass through the both sides sliding module of pushing, and the stable movement of adjusting component along with guide slide rail, with the gradual alignment of through groove and rectangular window, after the impurity of outside air through filter screen, through the through groove and enter the inside of instrument, quickly take away the heat of accumulation, reduce the signal fluctuation of sensor and appear the situation of overheat.
Owner:WEIHAI HAMIKE BIOTECHNOLOGY CO LTD

Storage tank group manhole water seal anti-failure method

The invention discloses a storage tank group manhole water seal anti-failure method. The method comprises the steps that a manhole water seal structure is arranged; when a plurality of storage tanks are fed at the same time, waste air in the tanks is pressed to enter the steel keel flexible air pipe to expand the steel keel flexible air pipe, and the exhaust electric valve is opened when the pressure in the pipe is higher than a set value, so that the waste air enters the waste gas purification liquid storage tank to be purified and absorbed; when a plurality of storage tanks discharge materials at the same time, under the action of negative pressure in the tanks, waste air temporarily stored in the steel keel flexible air pipe is sucked into the tanks to generate pipe contraction, and when the pressure in the pipes is lower than a set value, the air inlet electric valve is opened to enable indoor air to enter the steel keel flexible air pipe to balance the pressure so as to prevent a water seal structure from being damaged; when the storage tanks discharge and feed simultaneously, waste air discharged from the feed storage tank enters the discharge storage tank through the steel keel flexible air pipe, so that pressure balance in the storage tank is guaranteed, and a water seal mechanism is prevented from being damaged. The device can effectively prevent the water seal from losing efficacy, and has the advantages of low investment cost and operation cost.
Owner:QINGDAO CARNIVAL ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD

Anti-outage device of multi-energy hybrid power electric propulsion ship

The invention relates to a power failure prevention device of a multi-energy hybrid power electric propulsion ship. The power failure prevention device comprises a main electric propulsion assembly, a slave electric propulsion assembly and a switching assembly. The device comprises a main power supply state and an emergency power supply state, when the device is in the main power supply state, a first wire and a second wire are powered on, a moving mechanism is attracted to an electromagnet, and the middle of a third wire is disconnected; when the device is in an emergency power supply state, the main power supply is powered off, the wiring terminal is matched and connected with the joints of the third wire and the fourth wire, and the third wire is connected with the fourth wire. Compared with the prior art, the system has the advantages that the master electric propulsion assembly and the slave electric propulsion assembly cooperate with each other, double electric propulsion guarantee is constructed, redundant supply of ship propulsion electric power is achieved, the operation risk after single power supply outage can be avoided, rapid and automatic switching can be achieved, the recovery time of propulsion power in the fault state is greatly shortened, and the ship propulsion efficiency is improved. And continuous output of ship propulsion power is guaranteed.
Owner:SHANGHAI MARITIME UNIVERSITY

Recommendation for operations and asset failure prevention background

A method for performing a failure prediction operation for an industrial process is disclosed. The method may include collecting a set of physical sensor data and generating a set of virtual sensor data by applying a physics-based model to a. subset of the set of physical sensor data. The method may also include identifying a first set of features from the set of physical sensor data, and the set of virtual sensor data. The method may further include identifying, using a first set of machine-trained models applied to the first set of features, a set of anomaly detection scores, a first set of contributing factors to the set of anomaly detection scores, and a second set of features that have a feature importance score that is above a threshold. The method may also include generating at least one failure prediction model based on the first set of machine-trained models and applying the at least one failure prediction model to the set of physical sensor data and the set of virtual sensor data to calculate a likelihood score related, to a predicted failure of an asset.
Owner:HITACHI VANTARA LLC

Intelligent fault early warning system and method for hydropower station equipment

PendingCN121459515AAlarmsFailure preventionEarly warning system
The invention discloses an intelligent fault early warning method and system for hydropower station equipment. Real-time monitoring and analysis of key equipment (such as a generator, a transformer and a circuit breaker) of a hydropower station are achieved. The system integrates monitoring of key parameters such as current, voltage, power and temperature, historical data and a preset threshold value are combined, an advanced machine learning algorithm is applied, and intelligent analysis and fault prediction are carried out on the operation state of equipment. Once the system detects an abnormality or a potential fault, an alarm is given to an operator on duty in time and a processing suggestion is provided through a visual warning mode (such as a light indicator) and an automatic message notification mechanism, so that quick response and fault prevention are realized, and the operation safety and efficiency of the hydropower station are improved.
Owner:GUIZHOU PROVINCE PUAN COUNTY YINWANG HYDROPOWER DEV CO LTD

Loudness model anti-failure method and device, electronic equipment and storage medium

PendingCN122053907ASelective content distributionFailure preventionEngineering
The embodiment of the invention provides a loudness model anti-failure method and device, electronic equipment and a storage medium. The method comprises the following steps: determining different reference volume attribute information when a target video is played in different playing stages, each playing stage being different playing amount intervals divided according to different playing amounts reached in sequence when the target video is played, each piece of reference volume attribute information is used for describing volume loudness adjustment operation performed on the target video under the condition that the target video starts to be played at different reference volume loudnesses in each playing stage; and adjusting a volume loudness balance parameter of the target loudness model according to different reference volume attribute information so as to suppress performance degradation of the target loudness model in volume loudness balance. According to the scheme, the change of the video under the volume loudness balancing strategy is analyzed through the volume attributes updated by different data magnitudes, the effect of the volume loudness balancing strategy is monitored, and whether the volume loudness balancing strategy fails or not is judged in time.
Owner:BEIJING ZITIAO NETWORK TECH CO LTD

Fan fault prevention and knowledge base integrated management system

PendingCN121452124AMeasurement devicesMachines/enginesFailure preventionQuality data
The invention relates to the field of fan operation and maintenance management, and discloses a fan fault prevention and knowledge base integrated management system, which comprises a data acquisition module, a data preprocessing module, a fault early warning module, a knowledge base module, a decision support module and a man-machine interaction module, the output end of the data acquisition module is electrically connected with the input end of a data preprocessing module; the output end of the data preprocessing module is electrically connected with the input end of a fault early warning module; the output end of the fault early warning module is electrically connected with the input end of a knowledge base module and the input end of a man-machine interaction module. The knowledge base module is bidirectionally and electrically connected with a fault early warning module; and the output end of the decision support module is electrically connected with the input end of a man-machine interaction module. According to the invention, high-quality data is obtained through multi-dimensional pre-processing, intelligent early warning decision making of the linkage module is realized, the period is accurately shortened, and the problems of poor data and early warning lag in the prior art are solved.
Owner:GUANGDONG ENERGY GROUP SCIENCE & TECHNOLOGY RESEARCH INSTITUTE CO LTD

Well cementation first interface and second interface sealing performance testing device and sealing performance testing method

The invention belongs to the technical field of underground energy well cementation engineering testing, and particularly relates to a well cementation first-second interface sealing performance testing device and a sealing performance testing method.The well cementation first-second interface sealing performance testing device comprises an assembly sample, a true triaxial stress loading system, a sample temperature control system, a circulating injection and production simulation system, a sealing performance monitoring system and an ultrasonic monitoring system. The invention further provides a well cementation first and second interface sealing performance testing method for simulating the underground shaft environment by using the device provided by the invention. According to the device, the defects that an existing device is not real in simulated working condition, single in monitoring means and insufficient in positioning precision are overcome, the test result is more suitable for the field reality, and reliable technical support can be provided for well cementation interface sealing failure prevention and control, cement paste formula optimization and well cementation process improvement.
Owner:JILIN UNIVERSITY

A method for preventing and controlling electrical equipment failure of a blast furnace trough system

PendingCN122101779AControl devices for conveyorsFailure preventionControl engineering
The present application provides a kind of blast furnace trough system electrical equipment failure prevention and control method, belong to blast furnace smelting electrical automation control technical field.In the process of belt conveyor, when pull rope switch appears action signal, then according to pull rope switch action signal positioning, and confirm whether artificial pull rope appears;If artificial pull rope appears, then belt brake;If artificial pull rope does not appear, then the pull rope switch that sends pull rope switch action signal is short-circuit processing;In the process of belt conveyor, when deviation switch appears abnormal signal, then according to abnormal signal positioning, and confirm whether belt deviation appears;If belt deviation appears, then belt brake;If belt deviation does not appear, then the deviation switch that sends abnormal signal is short-circuit processing;After production is completed or overhauls, the deviation switch and pull rope switch that are short-circuit processing are overhauled.Through pull rope switch and deviation switch grouping and independent access host computer, realize fault accurate positioning and shorten maintenance time.
Owner:ANGANG STEEL CO LTD

Fault prediction system and electronic equipment

PendingCN121349822AHardware monitoringFailure preventionData pack
The invention discloses a fault prediction system and electronic equipment, and relates to the technical field of fault prediction.The fault prediction system is characterized in that in the process of monitoring a graphic processor in a server, a node server reports operation data of the detected graphic processor to a central control module, and the central control module carries out fault prediction on the graphic processor based on a pre-trained fault prediction model; and performing data prediction on historical operation data and current operation data included in the operation data, determining predicted operation data of the detected graphics processor in a preset duration, then determining a fault prediction result of the detected graphics processor based on the predicted operation data and a preset threshold value, and if the fault prediction result is that a fault occurs, determining that the detected graphics processor fails. Therefore, potential faults are predicted and prevented based on the operation data of the graphics processor, the problem that prediction cannot be carried out in advance and measures cannot be taken to avoid the faults is solved, and the requirements of a user for the stability and reliability of the GPU are met.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Deformable telescopic sorting box

The invention discloses a deformable telescopic sorting box, relates to the technical field of industrial packaging, and aims to solve the technical problem that an existing deformable sorting box is difficult to collaboratively realize high-precision self-adaptive supporting, long-term medium failure prevention and reliable automatic resetting. The deformable telescopic sorting box comprises a box body with a telescopic structure and a deformation mechanism arranged in the box body; a plurality of deep grooves are formed in the inner wall of the bottom of the box body in a rectangular array mode, and the interior of each deep groove is rotationally connected with a capsule body; and the deformation mechanism comprises a plurality of molding assemblies and a plurality of plugging modules which are arranged in the box body in a rectangular array. Stable support can be automatically formed through the air pressure cavity and the capsule body when articles are stored, the capsule body is pulled through linkage of the inserting rod when the articles are taken, internal fluid sedimentation of the capsule body is broken, meanwhile, by means of the shape memory characteristic of the capsule body, the original contour can be rapidly recovered after short-time article taking, automatic reset can be achieved after long-time article taking, and the safety of the articles is improved. The intelligent storage functions of self-adaptive deformation, settlement resistance and self-recovery are achieved.
Owner:ZHEJIANG TENGONE HOUSEWARE CO LTD

Thermal design and electromagnetic compatibility cooperation method and system for high-density server

PendingCN121525257AGeometric CADDesign optimisation/simulationFailure preventionDesign for manufacturability
The invention relates to the technical field of high-density server design, and particularly provides a thermal design and electromagnetic compatibility cooperation method and system for a high-density server, and the method comprises the following steps: S1, defining an EMC-thermal coupling design normal form; s2, shielding effectiveness and temperature rise index parameters are determined, the size of a high-density server is determined, and position index parameters of electric devices in the server are checked; s3, factors influencing heat dissipation and electromagnetic compatibility are determined; s4, variance analysis ANOVA adopts an orthogonal test method to calculate an influence factor weight; s5, constructing a three-dimensional electromagnetic field model and a computational fluid dynamics (CFD) model; and S6, exporting multi-physical coupling simulation result data, performing manufacturability design verification, discriminating non-machinable parameters, and assigning machinable parameter values near the non-machinable parameters. Compared with the prior art, the method can reduce the trial production frequency, improve the failure prevention identification degree, reduce the research and development period through the full-process collaborative design, accelerate the research and development progress and reduce the research and development cost.
Owner:SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD

Heating sheet with anti-failure function

ActiveCN224068804UHeater elementsFailure preventionThermodynamics
The utility model discloses a heating sheet with an anti-failure function, which comprises a silica gel heating sheet, the silica gel heating sheet is connected with a first plate body and a plurality of groups of column bodies, and the first plate body and the plurality of groups of column bodies are connected with the same second plate body. The silica gel heating sheet is connected with the second plate body through the first plate body and the multiple groups of column bodies, and the second plate body and the silica gel heating sheet are spaced, so that the second plate body can intercept objects close to the silica gel heating sheet, the risk that the silica gel heating sheet is damaged due to accidental collision of the objects is reduced, and the heating sheet can be prevented from being damaged and losing efficacy.
Owner:WUXI KANGXIN ELECTRIC HEATING TECH CO LTD

Compressor variable displacement electromagnetic valve capable of preventing corrugated pipe from micro-leakage failure

The utility model discloses a compressor variable displacement electromagnetic valve capable of preventing a corrugated pipe from micro-leakage failure, and belongs to the technical field of compressor variable displacement electromagnetic valves. Comprising an electromagnetic coil assembly, a shell, a guide sleeve, a fixed iron core and an electromagnetic driving assembly, the guide sleeve is connected to the top of a valve body, the valve body is provided with a first cavity, a guide through hole and a second cavity, the first cavity is communicated with an inner cavity of the guide sleeve, and the valve body is provided with an air suction port, a swash plate port and an exhaust port; a valve element is movably embedded in the guide through hole, a valve plug part arranged at one end of the valve element is located in the second cavity, and a reset spring is arranged in the second cavity. A corrugated pipe assembly is arranged at the bottom of the inner cavity, an annular notch formed in the valve element can communicate with the exhaust port and the second cavity, and the interior of the corrugated pipe assembly can communicate with the outside through the first through hole and the second through hole. According to the compressor variable displacement electromagnetic valve capable of preventing the corrugated pipe from losing efficacy due to micro leakage, the problem that the electromagnetic valve loses efficacy due to micro leakage of the corrugated pipe is solved.
Owner:SU ZHOU XIN ZHI JI DIAN GONG YE YOU XIAN GONG SI

Microphone failure prevention structure, microphone failure prevention assembly and heat-not-burn appliance

ActiveCN224206162UTobaccoFailure preventionCombustor
The utility model relates to the technical field of heat-not-burn, and provides a microphone failure prevention structure, a microphone failure prevention assembly and a heat-not-burn utensil, the microphone failure prevention structure is used for being installed in a negative pressure channel, and the microphone failure prevention structure comprises a cylinder arranged in the extension direction of the negative pressure channel; the spiral part is arranged on the outer wall surface of the column body, and at least one circle of spiral part is arranged; the hanging part is arranged on the column body and used for being hung in the negative pressure channel, and the hanging part is provided with an avoiding channel allowing the aerosol generating matrix to drip on the spiral part. After the microphone failure prevention structure is installed in the negative pressure channel, during suction, air flow can spirally enter the whole machine air channel on the spiral part, and smooth suction is guaranteed; during the suction interval, the aerosol generating substrate passes through the avoiding channel and drips on the spiral part, so that the aerosol generating substrate is prevented from dripping on the microphone deformation part, and the mouth number counting function of the microphone is ensured.
Owner:SHENZHEN GEEKVAPE TECH CO LTD

Fatigue test device and method suitable for space KK type pipe joint

PendingCN121453366AMachine part testingFailure preventionStructural fatigue
The invention discloses a fatigue test device and method suitable for a space KK type pipe joint in the technical field of civil and ocean engineering structure fatigue tests, and aims to solve the problem that a real stress state is difficult to simulate in the fatigue test of the space KK type pipe joint in the prior art. The system comprises a constraint module; the loading module comprises a first fatigue actuator set, a second fatigue actuator set, a third fatigue actuator set and a fourth fatigue actuator set, and the first ends of the first fatigue actuator set, the second fatigue actuator set, the third fatigue actuator set and the fourth fatigue actuator set are all connected with the constraint module; the second ends are respectively used for connecting four branch pipes of the space KK type pipe joint; and the electric control module is mounted on the restraining module and is electrically connected with the loading module. According to the invention, the real stress state of the space KK type pipe joint can be simulated and the fatigue test is carried out, the stability and simulation precision of the fatigue test are improved, and a basis is provided for safety evaluation and failure prevention.
Owner:HOHAI UNIV

Two-stage overflow water seal anti-failure device for deaerator

PendingCN121383169ALiquid degasificationBoiler cleaning apparatusFailure preventionDeaerator
The invention belongs to the technical field of boiler deoxidizing systems, and particularly relates to a two-stage overflow water seal failure prevention device of a deaerator, which is characterized by comprising a water injection cylinder, a first-stage water seal cylinder, a second-stage water seal cylinder and a floating ball type water replenishing valve, the first-stage water seal cylinder is communicated with the second-stage water seal cylinder through a water seal communicating pipe, the first-stage water seal cylinder is further communicated with the deaerator through a deaerator communicating pipe, the water injection cylinder, the first-stage water seal cylinder and the second-stage water seal cylinder are respectively connected with a water inlet pipeline, and the water injection cylinder, the first-stage water seal cylinder and the second-stage water seal cylinder are respectively connected with a blow-off pipeline through blow-off branch pipes; the top of the water injection cylinder is connected with a breathing pipe; an overflow pipe is arranged on the secondary water seal cylinder; a water inlet branch pipe on the water injection cylinder is provided with a floating ball type water replenishing valve. The overflow water seal device has the beneficial effects that automatic water replenishing of the overflow water seal device of the deaerator can be realized, the working condition of water seal failure caused by water shortage is prevented, and safe production and operation of a boiler deaeration system are ensured.
Owner:ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC

Failure prevention device for power semiconductor element

The invention provides a failure prevention device for a power semiconductor element, which can prompt a user to replace a component before the power semiconductor element fails. A failure prevention device for a power semiconductor element which is mounted on an insulating substrate by welding and is cooled by cooling water, the failure prevention device being characterized by comprising: a water temperature measurement means for measuring the temperature of the cooling water; an element temperature measuring means for measuring the temperature of the power semiconductor element; a calculation means for calculating the remaining life of the solder on the basis of the temperature fluctuation range of the power semiconductor element and the temperature fluctuation range of the cooling water; and a notification means for notifying a user to replace the power semiconductor element when the remaining life of the solder calculated by the calculation means is less than a threshold value.
Owner:TOYOTA JIDOSHA KK

Background of recommendations for operational management and asset failure prevention

A method for performing fault prediction operations for an industrial process is disclosed. The method may include collecting a physical sensor data set and generating a virtual sensor data set by applying a physics-based model to a subset of the physical sensor data set. The method may also include identifying a first set of features from the physical sensor data set and the virtual sensor data set. The method may further include using a first set of machine training models applied to the first set of features to identify a set of anomaly detection scores, a first set of contributors to the set of anomaly detection scores, and a second set of features having feature importance scores equal to or greater than a threshold. The method may include generating at least one fault prediction model based on the first set of machine training models, and applying the at least one fault prediction model to the physical sensor data set and the virtual sensor data set to calculate a likelihood score for a predicted fault of the asset.
Owner:HITACHI VANTARA LLC

A cementing interface seal test device and seal test method

This invention belongs to the field of cementing engineering testing technology for underground energy wells, specifically relating to a cementing interface sealing performance testing device and method, including: a composite sample, a true triaxial stress loading system, a sample temperature control system, a circulating injection-production simulation system, a sealing performance monitoring system, and an ultrasonic monitoring system. This application also provides a cementing interface sealing performance testing method using the device provided in this application to simulate an underground wellbore environment. The device of this application overcomes the shortcomings of existing devices, such as unrealistic simulation conditions, limited monitoring methods, and insufficient positioning accuracy. The test results are more consistent with actual field conditions, providing reliable technical support for cementing interface sealing failure prevention and control, cement slurry formulation optimization, and cementing process improvement.
Owner:JILIN UNIVERSITY

A seal failure prevention pressure grouting tank and a method of using the same

ActiveCN122098334AMixing methodsRotary stirring mixersFailure preventionRotary valve
The present application relates to the technical fields of mixing device, especially to a pressure grouting tank with seal failure prevention and its using method, which comprises a support frame and a tank body, the tank body is installed on the support frame, a stirrer is inserted in the tank body, a pressure relief assembly is installed on the upper end of the tank body, a suction pipe assembly is welded on the upper end of the tank body, a connecting pipe assembly is installed on one end of the suction pipe assembly, the pressure relief assembly comprises a vertical pipe, a limiting ring is fixedly connected to the inner side of the vertical pipe, a rotary valve is installed on the upper end of the vertical pipe, a valve rod is inserted in the inner side of the vertical pipe, an extension piece is installed on the inner side of the valve rod, a cross pipe is connected through the vertical pipe, and an air tank is installed on one end of the cross pipe, in the present application, a gas buffer space is constructed between the tank body and the outside, the pressure release rhythm in the gas buffer space is changed by controlling the air tank to fill a certain amount of gas into the gas buffer space, so as to realize the rapid balance of the air pressure inside and outside the tank, and then the pressure in the tank body is finely adjusted.
Owner:ZHEJIANG ZHANGDA LIGHT IND MACHINERY