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539 results about "Safety Interlock" patented technology

An interlock is a feature that makes the state of two mechanisms or functions mutually dependent. ... a safety interlock is often employed. The interlock consists of one or more switches that prevent both main power and generator power from powering the dwelling simultaneously.

Boiler combustion multi-objective collaborative optimization control method and system

The invention relates to the technical field of boiler combustion control, in particular to a boiler combustion multi-target collaborative optimization control method and system. The method comprises the following steps: firstly, acquiring coal quality parameters in real time through a laser-induced breakdown spectrum analyzer, carrying out qualitative and quantitative analysis on spectral data by utilizing a machine learning algorithm, constructing a boiler combustion digital twinborn model fusing a combustion mechanism model and a data driving model, and predicting combustion characteristics, NOx generation trends and coking risks under different blending schemes; and then, dynamically generating an optimization instruction combination according to a prediction result of the digital twinborn model, establishing a safety interlocking mechanism while executing the optimization instruction, and automatically switching to a manual control mode when detecting that the working condition fluctuates severely or the model prediction deviation exceeds a preset threshold value. According to the method, the problems of coal quality information lag and untimely combustion adjustment caused by traditional manual sampling are effectively solved, and the economical efficiency, the safety and the environmental protection property of boiler operation are improved.
Owner:HUANENG POWER INT ENERGY DEV CO LTD

Valve state monitoring and safety interlocking method and system based on machine vision

The invention discloses a valve state monitoring and safety interlocking method based on machine vision, and belongs to the technical field of industrial process control and safety. The method comprises the following steps: 1, calibrating a camera and establishing a model; step 2, image acquisition and preprocessing; step 3, key image feature extraction and state decision; fourthly, opening degree calculation and state judgment are carried out; 5, safety interlocking is triggered; and 6, feeding back data. The valve state monitoring and safety interlocking method is achieved through the valve state monitoring and safety interlocking system. According to the invention, the millimeter-level or even submillimeter-level displacement and angle real-time accurate measurement of the opening degree of the valve can be realized, the state monitoring of the valve is realized, and the stability and reliability in the production process are improved; state judgment is carried out by comparing the real-time opening value with the instruction opening from the control system, a safety interlocking signal is generated and transmitted to the safety interlocking system, and finally physical safety action is triggered, so that a set of complete safety protection system is realized, and accidents are avoided.
Owner:DALIAN UNIV OF TECH

Automatic control model for feeding and discharging of coal bunker

The invention belongs to the field of metallurgy and coal, and relates to an automatic control model for feeding and discharging of a coal bunker. The coal bunker feeding and discharging automatic control model is designed according to the blast furnace coal injection procedure of an iron making plant of an iron and steel enterprise, and automation and intelligentization of the whole coal bunker feeding and discharging process are achieved. A sensor, an automatic control system and a data analysis technology are integrated in the model, the material level of the coal bunker is monitored in real time through a material level indicator, and feeding and discharging strategies are automatically adjusted in combination with multi-level priority control logic. The system is provided with a dynamic switching mechanism, feeding targets can be automatically switched according to the material level of the coal bunker, the coal grinding speed is accurately controlled, and material breakage and material overflowing are prevented. In addition, the model has a safety interlocking protection function, and production safety is ensured. Through application of the model, the labor intensity of workers is remarkably reduced, the production efficiency and stability are improved, resource waste and equipment abrasion are reduced, the requirements of the modern industry for automatic and intelligent production are met, and sustainable development of enterprises is assisted.
Owner:CHONGQING IRON & STEEL CO LTD

Industrial iron smelting detection method based on direct current submerged arc furnace

The invention relates to the technical field of submerged arc furnace power supply systems, and provides an industrial iron smelting detection method based on a direct-current submerged arc furnace, which comprises the following steps of: constructing an electric thermal field chemical reaction dynamic model, integrating electric field, thermal field, chemical and mechanical full-dimensional data, and analyzing a multi-physical field coupling state in the furnace in real time; real-time working conditions and historical data are matched through a dynamic time warping algorithm, optimal power supply parameters are screened, and causes such as insufficient coke activity are positioned; and a digital twin simulation verification optimization scheme is utilized to realize millisecond-level adaptive control. The equipment reliability is improved through edge calculation and a safety interlocking mechanism, the limitation of artificial experience is broken through, and an efficient and accurate intelligent control solution is provided for power supply of the direct current submerged arc furnace.
Owner:FENGZHEN HUAXING CHEM IND CO LTD

Multi-source cooperative switching and interlocking control method and system based on EMS and storage medium

The invention provides an EMS-based multi-source cooperative switching and interlocking control method and system and a storage medium, and the method comprises the steps: firstly, monitoring the state of a power grid in real time, and achieving the quick switching operation through an STS if the power grid is abnormal; then, photovoltaic power supply is started preferentially, when photovoltaic power supply is not available, phase difference is detected in real time through a DZZB-A module, the rotating speed is dynamically adjusted based on the phase difference so as to meet dynamic grid-connected control of an oil engine (diesel generator), and impact-free grid connection is achieved; finally, based on the power supply power and the load power, a PCS charging and discharging mode is intelligently switched, and the stability of the power supply system is improved; meanwhile, through a double-path auxiliary power redundancy mechanism, a working power supply of the STS cabinet is ensured, and a power loss blind area of a control circuit is eliminated; in addition, through safety interlocking logic, automatic breaking of the power grid and the oil engine is achieved, and the problem of short circuit caused by parallel connection of power sources is prevented. The power supply system reliability is improved.
Owner:SHENZHEN EN-JOY TECH CO LTD

Safety control design method for full-automatic erection of radar

The invention relates to a safety control design method for radar full-automatic erection. The method comprises the steps of state monitoring, safety interlocking, permission design and fault isolation. The state monitoring comprises the steps of monitoring a radar state through multi-sensor fusion, analyzing a real-time state, feeding back the real-time state and judging whether a user instruction can be executed or not; the safety interlocking is used for setting protection logic, and interlocking is set for actions with association and sequence requirements; the permission design is that the minimum permission is set for an operator, and the erection process is only allowed to be carried out according to preset steps; according to the fault isolation design, when a system reports faults, a fault area is positioned according to the characteristic difference of fault information, fixed-point isolation is carried out, and the function is frozen. The method improves the safety of the radar erection process, avoids the misoperation in the erection process and the structural damage caused by the simultaneous occurrence of incompatible events in the process, and can be used for guiding the radar to carry out the erection safety design.
Owner:NANJING RES INST OF ELECTRONICS TECH

Interlocking protection optimization system and method of FLASH accelerator and electronic equipment

The invention provides an interlocking protection optimization system and method of a FLASH accelerator and electronic equipment, and the system comprises an acceleration module which is used for generating an initial electron beam and accelerating the initial electron beam to obtain a high-energy electron beam; the beam quality guarantee module is in signal connection with the acceleration module and is used for monitoring, regulating and controlling the intensity and the position of the high-energy electron beam in real time; the treatment execution module is in signal connection with the beam quality guarantee module and is used for converting the high-energy electron beams into treatment rays and monitoring the output dose of the treatment rays in real time; and a safety interlocking protection module which is in signal connection with the acceleration module, the beam quality guarantee module and the treatment execution module and is used for collecting operation parameters of all parts of the FLASH accelerator in real time, performing analysis based on preset logic, triggering interlocking protection actions under abnormal working conditions, and controlling the treatment execution module to perform treatment. And active monitoring-intelligent analysis-rapid response closed-loop control of the ultrahigh dose rate radiotherapy accelerator in a full operation period is realized.
Owner:ZHONGJIU FLASH MEDICAL TECHNOLOGY CO LTD

Safety interlocking device of quick-opening container and detection method and device of container control cabinet

The invention relates to the technical field of inspection and detection, and discloses a safety interlocking device of a quick-opening container and a detection method and device of a container control cabinet. A detection device composed of a power supply circuit, a main controller, a liquid crystal screen, a pressure main adjusting module, a pressure auxiliary adjusting module, a pressure transmitter signal simulation module, a zero-pressure controller signal simulation module, a storage module, a gas exhauster, a pressure sensor and the like is adopted, and a pressure container or / and a safety interlocking device can be detected. Therefore, when the quick-opening-door container is in a shutdown state, the quick-opening-door safety interlocking device can be subjected to safety and reliability verification, meanwhile, the control logic of the container control cabinet is verified, the blank of related detection is filled, and the safety and reliability of the quick-opening-door pressure container are improved.
Owner:王会琴

Sluice pump station operation state and water regimen linkage monitoring system

The invention relates to the technical field of hydraulic engineering monitoring and control, in particular to a sluice pump station operation state and water regimen linkage monitoring system. The decision control unit is used for generating long-term prediction information and short-term prediction information based on hydrological observation data and generating control instructions of the opening degree of a water gate and the rotating speed of a water pump. The control instruction execution unit is used for executing the corrected control instruction of the water gate opening degree and the water pump rotating speed; the linkage safety interlocking unit is used for transmitting a standby pump starting instruction to the control instruction execution unit when the first condition and the second condition are met at the same time, sending a blocking signal to the tactical optimization module, and sending a release signal to the tactical optimization module after the standby pump starting instruction is executed. According to the system, low efficiency or safety risk caused by a fixed strategy and execution of wrong operation under the condition that the equipment has a fault or has a fault are avoided, and secondary damage to the equipment and interruption of system operation caused by improper control instructions are effectively prevented.
Owner:HEFEI SANGSHANG MEASUREMENT & CONTROL TECH CO LTD

Fuming furnace waste heat boiler liquid level automatic control device, method and system and medium

The invention discloses a fuming furnace waste heat boiler liquid level automatic control device, method and system and a medium, and the method comprises the steps that sensing data are obtained and preprocessed, and the sensing data at least comprise steam drum liquid level data, steam output flow data and boiler feed water flow data; performing three-impulse cascade PID control based on the sensing data to obtain a control instruction, wherein the control instruction comprises a theoretical water replenishing value, a valve opening instruction and a water pump frequency converter adjusting instruction; regulating valve control and constant pressure difference control are carried out based on the control instruction in combination with a preset interval; and performing synchronous control based on a preset safety interlocking protection mechanism, wherein the synchronous control comprises pump spare power automatic switching, regulating valve abnormity alarm, over-limit water level interlocking and man-machine interaction. Through innovative three-impulse cascade PI D, dynamic interval control and constant pressure difference optimization, the defects of a traditional method under the complex working condition of the fuming furnace are overcome, high-precision and high-stability liquid level control is achieved, and meanwhile equipment safety and economical efficiency are remarkably improved.
Owner:HANGZHOU FUCHUNJIANG SMELTING CO LTD +1

Intelligent material cabinet and safe and accurate material distribution method

The invention discloses an intelligent material cabinet and a safe and accurate material distribution method. The intelligent material cabinet further comprises an anti-theft unit, a material recognition unit and a safety interlocking mechanism on the basis of a conventional cabinet body. The anti-theft unit seals a blue opening by arranging a long turning plate and a short turning plate at the blue opening of a lifting blue and is linked with a material taking turning plate of a material taking opening; the material identification unit is provided with an intelligent camera, a wide-angle camera and a pressure sensor for detecting material information; the safety interlocking mechanism is provided with a limiting switch, an electronic bolt door lock and a material taking indicator lamp, and limiting of the lifting basket, locking of a material taking opening material taking turning plate and material taking prompting are achieved. According to the method, safe and accurate material distribution is achieved through material management, material identification and safety linkage. According to the material cabinet and the method, the defects of traditional material warehouse management are overcome, the accuracy of material distribution and the anomaly detection processing capacity are improved, the vulnerability of theft is eradicated, the safety of material extraction operation is ensured, and then the adaptability, automation and intelligence of material warehouse management are improved.
Owner:SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE

New energy equipment virtual maintenance system and method supporting fault drilling

The invention relates to the technical field of new energy electric power construction and operation and maintenance, in particular to a new energy equipment virtual maintenance system and method supporting fault drilling. The system comprises five core modules: an asset and twinning modeling module constructs an electrical-mechanical-thermal multi-physics field coupling digital twinning model of a wind generating set, a photovoltaic inverter and an energy storage battery cluster, and drives a fault drilling engine; the fault drilling engine triggers a fault scene based on preset event-condition-action logic and a job ticket operation state, and activates a fault evolution chain through violation operation; the job ticket and process arrangement module simulates the whole maintenance process and checks security constraints in real time; the safety interlocking and protection simulation module verifies the operation in real time according to the relay protection constant value, triggers a protection action during violation and feeds back the protection action to the fault engine; and the virtual-real fusion interaction module synchronizes a virtual instruction to an engine and an external device through a communication protocol, so that the consistency of virtual-real operation and protection action is ensured, and co-simulation and security verification of the whole system are realized.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

Double-channel industrial furnace gas combustion safety interlocking control system

PendingCN121957239AReduced risk of poppingreduce carbon depositionSimultaneous control of multiple variablesReal time analysisHuman–machine interface
The invention belongs to the technical field of industrial combustion safety control, and provides a double-channel industrial furnace gas combustion safety interlocking control system which comprises a gas / air flow ratio dynamic monitoring module, a flue CO concentration online detection module, a double-channel data conflict arbitration processor and a visual human-computer interface. Aiming at the prominent problems of incomplete combustion of coal gas, carbon deposition, detonation risk and the like which are easy to occur under the working condition of accelerated temperature rise, the system integrates visual double-insurance safety control of dynamic calculation of a flow ratio and real-time analysis of tail gas components, and all-directional safety protection in the combustion process is realized through a multi-parameter cooperative monitoring and intelligent interlocking mechanism; the detonation risk is obviously reduced; meanwhile, the air-fuel ratio fluctuation is accurately controlled within the range of + / -5%, and the carbon deposition phenomenon is effectively reduced; and remarkable economic benefits are created while reliable operation of equipment is guaranteed.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

Connecting and grinding equipment for end parts of water supply and drainage pipelines

The invention relates to the technical field of grinding equipment, in particular to water supply and drainage pipeline end connection grinding equipment which comprises a grinding support and further comprises a T-shaped sliding base, a first limiting sliding sleeve and a second limiting sliding sleeve are further slidably installed on the T-shaped sliding base, and the T-shaped sliding base is fixedly installed on the grinding support. The grinding adjusting mechanism is connected with the grinding support, the first limiting sliding sleeve and the second limiting sliding sleeve, and the grinding adjusting mechanism comprises an end face grinding assembly, an arc face grinding assembly and a safety interlocking assembly. The end of the water supply and drainage pipeline is connected with the grinding equipment, and the integrated equipment capable of grinding multiple faces of the pipeline is designed, so that operation is easy, cost is reduced, the situation that multiple grinding heads collide with one another or the grinding heads collide with the pipeline can be avoided, and grinding work safety and grinding quality are guaranteed.
Owner:LIANYUNGANG MUNICIPAL GOVERNMENT ENG CONSTR MANAGEMENT CENT

Wind turbine generator intelligent maintenance system combined with component residual life evaluation

The invention belongs to the technical field of wind power operation and maintenance, and discloses a wind turbine generator intelligent maintenance system combined with component residual life evaluation, which comprises a sensing edge layer, a station cooperation layer, a cloud intelligent center, an execution and safety interlocking layer and a credible evidence storage layer. The system collects unit operation and environment data through the edge layer, gathers the data through the station cooperation layer, inputs the data into the cloud intelligent center for multi-domain degradation modeling and life prediction, and determines a maintenance window and a resource scheduling scheme based on a comprehensive cost optimization model. The cloud center realizes cross-station model sharing and self-learning through a federated learning mechanism, the execution layer completes maintenance tasks and safety locking control, and the trusted evidence storage layer performs block chain abstract evidence storage on key data. According to the system, health state evaluation, intelligent maintenance decision making and whole-process credible tracing of the wind turbine generator are realized, and the operation and maintenance safety and economy are improved.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

Safety interlocking system of formula warehouse stacking machine and using method of safety interlocking system

The invention discloses a safety interlocking system of a formula warehouse stocker and a use method thereof, and belongs to the technical field of warehouse equipment safety, and the safety interlocking system comprises a safety state monitoring module which is used for monitoring safety state information in a stocker roadway in real time; the control module is in communication connection with the safety state monitoring module and is used for receiving and processing the safety state information and generating a control instruction according to preset safety logic; the brake execution module is arranged on the stacking machine, is in signal connection with the control module and is used for receiving the control instruction and executing corresponding speed reduction or brake operation on the stacking machine; and the man-machine interaction and alarm module is in communication connection with the control module and is used for displaying the system state, giving an alarm prompt and receiving a manual instruction. According to the invention, the risk of mechanical injury when personnel enter the roadway is effectively avoided, and the automatic safety level and the overall reliability of the operation of the stacker in the formula warehouse are remarkably improved.
Owner:CHINA TOBACCO SHANDONG IND

Aircraft ground service equipment service joint safety interlock control method and related equipment

The invention provides an aircraft ground service equipment service joint safety interlocking control method and related equipment, and is applied to the technical field of automatic control. The method comprises the following steps: acquiring a real-time image of a target area; detecting and identifying the real-time image to obtain a service joint state identification result of the ground service equipment; based on the service connector state recognition result of the ground service equipment, an interlocking control instruction is output, and the interlocking control instruction is used for controlling the aircraft and / or the ground service equipment. Therefore, the action of the equipment or the system is controlled according to the actual state of the service joint, misoperation is avoided, and the safety of collaborative operation of the aircraft and the ground service equipment can be improved.
Owner:SHENZHEN CIMC TIANDA INFORMATION TECHNOLOGY CO LTD +1

Intelligent flour production line safety supervision system based on cloud platform

The invention relates to the technical field of flour production line safety supervision, in particular to an intelligent flour production line safety supervision system based on a cloud platform. The system comprises a data acquisition module, a risk assessment module, a decision module and an execution and repair module. The system calculates an instantaneous physical risk by acquiring production line sensor data and an HMI operation log; the core of the method is that trust deficit of an operator is quantified based on an HMI operation log, and the bypass probability of safety interlocking is predicted according to the trust deficit; when the instantaneous physical risk exceeds a preset threshold value, the system executes a final action according to whether the trust deficit exceeds the threshold value or not; according to the method, the operator trust state is evaluated, and the problem of systematicness failure caused by the fact that a traditional system neglects the consideration of human factors and is easily bypassed is solved.
Owner:SHIJIAZHUANG GAOCHENG LIFENG FLOUR IND CO LTD

Hydraulic blowout preventer monitoring method and device and storage medium

The invention relates to the technical field of oil and gas drilling and production well control safety, and discloses a hydraulic blowout preventer monitoring method and device and a storage medium. The method comprises the steps that hydraulic flow data in a hydraulic pipeline opening and / or closing process of a hydraulic blowout preventer are obtained, and whether the hydraulic flow data are normal or not is judged; based on the hydraulic flow data, whether the hydraulic blowout preventer completes closing or opening operation or not is judged, and whether closing or opening is normal or not is judged; when it is judged that the hydraulic blowout preventer completes the closing operation, air pressure data associated with an air path for controlling the drilling machine to brake are obtained; judging whether the air pressure data is lower than a safety threshold; and if the air pressure data is lower than the safety threshold value, a first alarm signal indicating brake failure is generated and output. According to the system, the well shut-in state and brake effectiveness can be verified, and an alarm can be given in time when safety interlocking is abnormally removed, so that the accident that a drilling tool is lifted and broken due to state misjudgment or human negligence is fundamentally eradicated, and the problem that the safety state cannot be monitored is solved.
Owner:大英县卓筒井镇鑫鑫机械加工店

Electrician practical training identification device with intelligent switching control

The invention discloses an intelligent switching control electrician practical training identification device, which belongs to the technical field of electrical detection and comprises a practical training platform, an operation panel, an electrical carrier plate and a built-in PLC (Programmable Logic Controller), the system integrates power input, a first conversion unit composed of a first isolation transformer and a first contactor, a second conversion unit composed of a second isolation transformer and a second contactor, a control unit, a data storage module, an operation input unit, a feedback unit and a load output unit. A dual-safety interlocking structure combining software interlocking and contactor hardware interlocking is realized through a PLC, and two paths of power outputs cannot be switched on at the same time. The device has the functions of intelligent mode switching, real-time voltage monitoring, fusing and sudden stop dual protection, operation state feedback and practical training data storage, meets industrial-grade and safety-grade practical training requirements, is compact in structure and high in safety, supports closed-loop control and data tracing, and is suitable for modern electrician skill training and intelligent examination and identification.
Owner:CHANGSHAN COUNTY VOCATIONAL SECONDARY SCHOOL

Heater drainage control method and system with fault diagnosis function

The invention relates to the technical field of heater drainage control, and discloses a heater drainage control system with fault diagnosis, which comprises an electric regulating valve group, a water level sensor module, a DCS (Distributed Control System) control module and a safety interlocking protection unit, the electric control valve group comprises a position feedback module and an execution mechanism, the DCS control module is integrated with a fault diagnosis sub-module, and the invention further provides a heater drainage control method with the fault diagnosis function, and the method comprises the following steps that S1, signal collection and preprocessing are conducted, and water level signals are collected in real time through a sensor; s2, deviation analysis: the DCS control module compares the deviation between a set value and an actual value, and adopts a self-adaptive threshold to judge a control demand; manual operation is transformed into remote automatic control, an automatic control strategy is optimized, the water level of the high-pressure heater is adjusted when the load of the unit changes frequently, manual operation is reduced, and safety and reliability of operation of the unit are improved.
Owner:GUO DIAN JING YUAN FA DIAN YOU XIAN GONG SI

Intelligent energy scheduling method for energy storage and charging direct current coupling system

The invention discloses an intelligent energy scheduling method for an energy storage and charging direct-current coupling system, and the method employs a bidirectional buck-boost intelligent switching control module, a duty ratio optimization algorithm module, an intelligent control circuit switching module, a mode switching judgment algorithm module, a safety interlocking protection module, and a parameter interaction fusion mechanism. The method is used for realizing collaborative optimization control among algorithm modules, and comprises the following steps: transmitting voltage stability monitoring parameters from a bidirectional buck-boost intelligent switching control module to a duty ratio optimization algorithm module; the duty ratio change rate and the control stability parameter are transmitted to the safety interlocking protection module and the mode switching judgment algorithm module from the duty ratio optimization algorithm module, and the safety state information is transmitted to the intelligent control circuit switching module from the safety interlocking protection module. According to the invention, flexible, efficient and safe charging of the electric vehicles on different voltage platforms by the energy storage battery is realized, the real-time performance, the accuracy and the reliability of the system are considered, and collaborative optimization control is realized through a parameter interaction mechanism.
Owner:JIANGSU TELLUS POWER CO LTD

Safety interlocking device of quick-opening container and detection device and method of container control cabinet

The invention relates to the technical field of inspection and detection, and discloses a safety interlocking device of a quick-opening container and a detection device and method of a container control cabinet. The detection device is composed of a power supply circuit, a main controller, a liquid crystal screen, a pressure main adjusting module, a pressure auxiliary adjusting module, a pressure transmitter signal simulation module, a temperature transmitter signal simulation module, a zero-pressure controller signal simulation module, a storage module, a gas exhaust, a pressure sensor and the like. The pressure container or / and the safety interlocking device can be detected, so that the safety and reliability of the quick-opening safety interlocking device can be verified under the shutdown state of the quick-opening container, meanwhile, the control logic of the container control cabinet is verified, the blank of related detection is filled, and the detection efficiency is improved. And the safety and the reliability of the pressure container with the quick-opening door are improved.
Owner:ANGELI (CHENGDU) INSTR CO LTD

Unmanned vessel and method for operating remotely controlled vessel

The invention relates to an unmanned vehicle comprising a frame (12), a power unit (14) connected to the frame (12) for propulsion of the vehicle (10), an explosive charge (16) arranged to be carried by the vehicle (10), a power source (18), and a trigger (20) connected to the explosive charge (16), between the power source (18) and the explosive charge (16), for triggering the explosive charge (16). Further, the vehicle (10) comprises a first safety interlock (22) and a remote controlled second safety interlock (24) connected between the power source (18) and the explosive charge (16), as well as a mechanical binding means (30), preferably a cord, whose one end (32) is connected to the mechanical safety interlock (22) and whose other end (34) is connected to a solid object (38) at the launching point (36) of the vehicle (10), wherein said binding means (30) releases the first safety interlock (22) when the vehicle (10) moves further from the launching point (36). The second safety interlock (24) comprises a receiver (42) for receiving a second control signal via remote control by communication means (28). Further, the vehicle comprises a control unit (26) for controlling the vehicle (10), and a third safety interlock (40), as well as communication means (28) for controlling the vehicle (10) and for operating the remote controlled second safety interlock (24) via remote control. The control unit (26) is arranged to control the third safety interlock (40) on the basis of a selected criterion. The invention also relates to a method for operating a remote controlled vehicle.
Owner:NORDIC DRONES OY

A hydrogen leakage safety interlock protection system and control method for a hydrogen refueling station

The present invention relates to a hydrogen leakage safety interlock protection system and a control method for a hydrogen refueling station. A pressure gauge, a temperature sensor, and a pressure reducing and temperature reducing valve are provided on a hydrogen storage tank group. The pressure gauge and the temperature sensor are connected to a communication module, and the pressure reducing and temperature reducing valve is connected to an ESD emergency shutdown system, which includes a controller module and an actuator module; the hydrogen storage tank group is connected to a hydrogen transmission pipeline, and a plurality of solenoid valves and exhaust fans are arranged in the hydrogen transmission pipeline. Both the solenoid valves and the exhaust fans are connected to the actuator module; a hydrogen sensor is attached to the outer side of the hydrogen transmission pipeline; the hydrogen sensor is connected to the communication module, and the communication module is connected to a monitoring module, an alarm prompt module, and a storage module. The monitoring module, the alarm prompt module, and the storage module are all connected to the controller module; the actuator module of the ESD emergency shutdown system is also connected to a first stop button and a second stop button. The present invention solves the problem that the existing control system has a slow response when a failure occurs and is prone to major accidents.
Owner:STATE GRID ANHUI ELECTRIC POWER CO LTD ELECTRIC POWER SCI RES INST +1

A cross arm production process

The present application relates to the technical field of power hardware processing and manufacturing, and particularly relates to a cross arm production process. The process comprises: after a fluid-incompressible pressure-maintaining rigid boundary is constructed by pressing a main hydraulic cylinder, starting a microseismic device to directionally inject high-frequency mechanical microseismic kinetic energy into the cross arm; synchronously extracting a back pressure feedback value in a sealed loop and monitoring a dynamic attenuation slope thereof in real time; when the slope is detected to be flat and to be in an attenuation stagnation of internal stress release, under a timing safety interlock protection mechanism for executing confirmation of mechanical wave calming, triggering a high-frequency electrically-controlled proportional overflow valve to execute millisecond-level transient micro-pressure relief and extremely fast pressure reconstruction, so as to provide a transient volume yielding space for metal lattice rearrangement; and finally completing final state confirmation when the absolute value of the back pressure is stabilized at a zero rebound threshold. The present application can solve or at least alleviate the secondary rebound problem caused by lattice distortion residual strain energy accumulation in the forming of thick-walled metal components, and improve the production quality of the cross arm.
Owner:ZHEJIANG XIANGLI POWER EQUIP CO LTD

Unlocking device (push-type rotary emergency TRL1)

1. The name of this design product: Unlocking device (push-type rotary emergency TRL1). 2. Application of this design product: Used as a safety interlock emergency unlocking device for industrial automation equipment. 3. The key design point of this appearance design product lies in the overall shape of the product. 4. The picture or photo that best illustrates the design points: three-dimensional picture.
Owner:HUIZHOU SHILAIGE TECH CO LTD

Electrical submersible pumping system with a ride through power supply having a safety interlock

A well system includes an electrical submersible pumping (“ESP”) assembly, a variable speed drive, and a ride through system. The ESP assembly includes a pump for lifting liquid from inside the well and an electric motor for powering the pump. The variable speed drive is outside the well and controls delivery of electricity from a power source to the motor. The ride through system provides backup electricity if there is an interruption of electricity from the power source. The ride through system includes a bank of power modules having stored electrical power. The modules are connected in series and have a combined electrical potential adequate for powering the motor. By selectively disconnecting adjacent modules from one another, the electrical potential from the bank of power modules is reduced to a magnitude that is not hazardous for personnel.
Owner:BAKER HUGHES OILFIELD OPERATIONS LLC

Heat value adjusting device of gas generator set

The heat value allocation device comprises at least two gas source pipelines with different heat values, and each pipeline is provided with an adjusting valve and a flow meter; the efficient dynamic mixer is used for receiving the fuel gas from each gas source pipeline and fully mixing the fuel gas; the real-time monitoring system comprises an on-line calorific value analyzer and a densimeter which are arranged on an outlet pipeline of the mixer; the intelligent control system is used for receiving signals of the flowmeter, the calorific value analyzer and the densitometer and outputting control signals to the regulating valves of the pipelines; the invention discloses a safety interlocking system. The system and the method have the beneficial effects that online, real-time and accurate allocation is realized, the stability of fuel of the gas generator set is ensured, the power generation efficiency and the operation reliability are improved, and the adaptability of the set to different gas sources is enhanced.
Owner:华能海南发电股份有限公司南山电厂

Safety interlocking device for vaporization of low-temperature liquid oxygen, liquid nitrogen and liquid argon

The utility model discloses a safety interlocking device for vaporization of low-temperature liquid oxygen, liquid nitrogen and liquid argon, and relates to the technical field of vaporization equipment. The device comprises a vaporizing tank, a DCS (Distributed Control System), a buffer pressure tank and an exhaust pipeline, wherein a material coil pipe and a steam coil pipe are arranged in the vaporizing tank; a water bath layer is arranged in the vaporizing tank; a steam inlet pipe connected with the steam coil pipe is arranged at the top of the vaporizing tank, a steam regulating valve is arranged on the steam inlet pipe, and a material inlet pipe connected with the material coil pipe is arranged at the bottom of the vaporizing tank. According to the utility model, through the design of the DCS control system, the steam regulating valve, the liquid pump, the liquid level sensor, the in-tank temperature sensor and the pipe body temperature sensor are connected with the DCS control system, when the temperature sensors detect temperature deviation, timely and safe interlocking control can be realized; safety accidents caused by pipeline leakage in the vaporization tank can be monitored, and the safety of vaporization equipment is greatly improved.
Owner:JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD