6187 results about "Hydraulic control" patented technology

The invention relates to the technical field of compression molding of carbon fiber prepregs, in particular to a partitioned pressurization control method and system for compression molding of the carbon fiber prepregs and a molding process. S2, initial pressure calculation; s3, gradient pressurization control; s4, dynamic pressure adjustment; and S5, a global pressure maintaining stage: when the resin curing degree alpha reaches 0.6-0.8, switching to a full-screen pressure maintaining mode, and maintaining the pressure of each region to be 90%-95% of the current maximum pressure value until curing is completed. The invention provides a zoning pressurization control method and system for compression molding of carbon fiber prepreg and a molding process, and realizes the compression molding method and system with accurate zoning pressure regulation and control and directional discharge of volatile components. And by integrating intelligent sensing, multi-channel hydraulic control and a data driving optimization algorithm, the limitation of a traditional process is broken through, and a technical support is provided for efficient forming of the high-performance carbon fiber composite material.

The invention provides a front end assembly, an endoscope and an endoscope hydraulic control system, and belongs to the technical field of endoscopes. The front end assembly comprises a front end base, a camera module and a pressure measuring mechanism, the camera module and the pressure measuring mechanism are both installed on the front end base, the pressure measuring mechanism comprises a piezochromic layer, the piezochromic layer is located at the circumferential position of the camera module, the piezochromic layer is made of a piezochromic material, and at least part of the piezochromic layer is located in an image acquisition area of the camera module. The front end seat is provided with the pressure measuring mechanism, and the pressure measuring mechanism is used for detecting the pressure around the front end assembly, so that the accuracy of pressure adjustment in a body cavity is improved, the hysteresis of pressure adjustment in the body cavity is reduced, the amplitude of pressure fluctuation in the body cavity is reduced, and the surgical risk is reduced; the pressure information in the body cavity is judged by observing the color information of the piezochromic layer in the image information collected by the camera module, an operator can adjust the pressure in the body cavity in time, and the overall operation is simple and convenient.

The invention relates to an active hydraulic suspension shock absorber which comprises an inner pipe, an outer pipe, a guider assembly, a piston, a piston rod, a suspension seat, a first electromagnetic valve assembly, a second electromagnetic valve assembly and an energy accumulator. Meanwhile, the first electromagnetic valve assembly, the second electromagnetic valve assembly and the energy accumulator are integrated in one part, the production efficiency is improved, the production and machining technology is simplified, the shock absorber can provide the best suspension performance under various driving conditions through the integrated electromagnetic valve assemblies and an optimized hydraulic control strategy, and the service life of the shock absorber is prolonged. And the dual requirements of modern automobiles on comfort and controllability are met.

The invention discloses a hydraulic system throttling control method based on a hydraulic control one-way valve, which relates to the technical field of throttling control, and comprises the following steps of: in an initialization stage of starting a hydraulic system, setting an optimal initial throttling opening for a throttling valve based on flow data of current oil; the method comprises the following steps: performing high-frequency real-time acquisition on flow state data of oil through a sensor deployed at the upstream of a throttling area, and establishing a set of flow state data system based on a time sequence; continuously collected flow state data are divided according to time windows, and an analysis set of oil flow data is constructed. According to the method, the dynamic flowing state of oil is monitored and deeply analyzed in real time, the load state is intelligently predicted in combination with a support vector machine model, and the opening degree of the throttling valve is adjusted in real time; the problems that in the prior art, response of a throttling control strategy to a high-load working condition is delayed, and oil temperature rise and viscosity abnormal reduction are caused by serious local pressure loss of a throttling area are effectively solved.

The invention discloses a whole-span bridge hoisting construction method. The method comprises the steps that prefabricated bridge components are transported to a construction site; in the construction preparation stage, a foundation monitoring mechanical model of a construction site is built, and the optimal position and operation parameters of a crane are determined; before hoisting, a laser emitting device is installed on a bridge component, a laser receiving device is installed at the front end of a crane suspension arm, and a plurality of laser reflection targets are arranged on the periphery of a preset installation position of a pier; in the lifting and translation processes, the laser positioning system monitors the spatial position and attitude information of the bridge component and the suspension arm in real time, and transmits the data to the control center in real time; and the control center compares the actual position deviation with the target position deviation in real time according to the preset hoisting path and the in-position precision requirement, and when the deviation exceeds the threshold value range, a control instruction is sent to a power system and a hydraulic control system of the crane. According to the method, the position and posture of the bridge component can be accurately monitored in real time, the action of the crane is timely and accurately regulated and controlled according to the deviation, and the construction precision and safety are improved.

The invention relates to the technical field of intelligent control, in particular to an intelligent radiation constant-temperature and constant-temperature system and a remote monitoring method, and the system comprises a radiation tail end control module, a hydraulic balance adjusting module, a fresh air humidity regulation and control module, a cold and heat source matching module and a noise and vibration suppression module. According to the method, through fine collection and analysis of temperature data of differentiated areas and optimization of a heat exchange strategy, precise temperature control is achieved, the response capacity is improved, the fluid flowing state is dynamically adjusted, hydraulic balance is optimized, reasonable distribution of cold water and hot water is ensured, heat loss is reduced, energy efficiency is improved, and air quality monitoring and the humidity change trend are combined; the dehumidification and humidification capacity of the fresh air system is optimized, the humidity adjusting precision is improved, cold and heat source output is dynamically matched with environment heat loads, energy consumption optimization is achieved, hydraulic control and vibration suppression are optimized based on flow speed and vibration monitoring, the mute effect and comfort are improved, multi-dimensional data collaboration is achieved, and accurate adjustment, independent control and efficient energy consumption management are achieved.

The invention discloses a self-adaptive balance control method and device for a crane, and relates to the technical field of self-adaptive balance control, and the method comprises the steps: firstly building a crane dynamic model through historical balance data in a database, then predicting system state data of a next time node, and then analyzing the predicted data to obtain a crane dynamic model; accurately judging that the system is in a normal, dangerous or unbalanced state, when the system is in a dangerous state, collecting and deeply analyzing hydraulic system data, and setting a hydraulic regulation and control scheme in a targeted manner; when the crane is in an unbalanced state, load balance data are collected and analyzed, an effective supporting compensation scheme is formulated, finally, hydraulic regulation and control and supporting compensation data within a preset time period are collected, comprehensive analysis is conducted, and then a load dynamic compensation scheme is set. The working efficiency is improved.

The invention discloses a hydraulic control system, which belongs to the field of hydraulic control, and comprises a power execution module, a control regulation module and a sensing feedback module, in the slurry manufacturing stage, data are collected through a sensor, the abnormal condition of the slurry temperature is detected to judge whether the slurry temperature is adjusted or not, and based on the real-time slurry viscosity, the rotating speed of a stirring shaft is adjusted in a self-adaptive mode by adjusting the hydraulic flow of a hydraulic motor of a stirring driver; acquiring driver data to monitor a control instruction implementation result, performing abnormality evaluation analysis on a driver through threshold judgment and abnormality score calculation, and generating an updated driver control signal after a driver instruction regeneration signal is received; monitoring abnormal conditions of data acquired by various deployed sensors, monitoring abnormal data of the sensors, and monitoring duration of the abnormal data so as to carry out abnormal early warning and generate abnormal early warning information; the problem that the slurry temperature of die-casting equipment under hydraulic control is difficult to adaptively adjust and disturb is solved.

The invention relates to the technical field of civil engineering construction, in particular to a precise positioning civil engineering pile foundation construction system which comprises a multi-source space sensing and positioning module, a space-time multi-dimensional data fusion module, a three-dimensional guiding and correcting module, a hydraulic control module and a closed-loop feedback optimization module. The multi-source space sensing and positioning module obtains pile machine position and attitude information through the Beidou / GNSS high-precision positioning unit, the inertia high-precision navigation unit and the laser horizontal measurement unit, and the space-time multi-dimensional data fusion module processes and fuses the information to generate unified space position data. The three-dimensional guiding and correcting module compares the data with preset pile position coordinates, if the deviation exceeds a threshold value, a correcting instruction is generated, the hydraulic control module executes the instruction and adjusts the position and the posture of a pile machine, the closed-loop feedback optimization module collects the data in the correcting process and optimizes a correcting strategy, all-weather centimeter-level precision space positioning is achieved, and the positioning precision is improved. And the accuracy and efficiency of pile foundation construction are improved.

The invention discloses a hydraulic control simulation-optimization method for underground water pollution in an in-situ leaching uranium mining final mining area. The method comprises the following steps: constructing a three-dimensional unstable underground water flow and pollution component reaction migration simulation model of an ore-bearing water layer by utilizing MODFLOW and PHT3D simulation software; determining a management objective function and constraint conditions of hydraulic control of the underground water pollution range of the in-situ leaching uranium mining final mining area, and establishing an objective function of a hydraulic control optimization management model; the underground water level and the pollutant concentration of each grid are used as state variables, the water pumping flow of each well is used as a decision variable, and the state variables are continuously updated through an ore-bearing water layer three-dimensional unstable underground water flow and pollution component reaction migration simulation model. And selecting an optimal solution of the objective function of the hydraulic control optimization management model by using a particle swarm optimization algorithm. According to the method, the hydraulic control condition of the pollution plume of the ore-bearing and water-bearing stratum in the final mining area can be predicted, potential problems can be found in advance, and corresponding measures are taken for adjustment.

The invention discloses a radial forging machine chuck rotation oscillation braking electro-hydraulic control system and method, and the control system comprises a position detection encoder installed on a hammer head of a forging main machine, a hydraulic servo motion controller, a high-frequency servo valve, an oscillation braking oil cylinder with the same area as an A cavity and a B cavity, and an oscillation braking device with a worm gear and a worm. The pressure sensor and the displacement sensor are integrated on the oil cylinder to form a closed-loop control loop; the control method comprises the following steps: activating an oscillation braking function and collecting hammer phase, oil cylinder pressure and displacement signals in real time; a sine control signal synchronous with the forging frequency is generated based on the brake phase of 270-360 degrees; a brake oil cylinder is driven to push the worm to axially move, and the rotating speed of the chuck is modulated through the helix angle characteristic; and the amplitude is dynamically adjusted through a displacement-pressure feedback signal, and 25MPa overrun protection is executed. The purposes of reducing the brake response delay rate, the forge piece distortion rate and the equipment impact load are achieved, and 90-620 times / min wide-frequency-domain forging is supported.

The invention discloses an extruder hydraulic automatic control method based on machine learning, and relates to the technical field of machine learning. The method comprises the following steps: collecting training data to establish a damping coefficient prediction model and a friction coefficient prediction model; hydraulic pressure data, hydraulic flow data and component movement data are collected; establishing a pressure-load control model, a flow-speed control model and a displacement-speed control model; collecting an initial pressure value and real-time operation characteristic data; acquiring a real-time friction coefficient, a real-time damping coefficient, a real-time output pressure value, a real-time output flow value, a real-time displacement change value and a real-time speed change value; calculating a real-time pressure compensation value, a real-time flow compensation value, a real-time displacement adjustment value and a real-time speed adjustment value; and pressure compensation and displacement and speed regulation and control are carried out. According to the method, multiple machine learning models are established, and hydraulic pressure is compensated and comprehensively regulated, so that accurate, efficient and intelligent control of the hydraulic system is realized.

To avoid a large size of a direction change-over valve and enable accurate supply flow control when providing a flow control valve at an upstream side of the direction change-over valve to change the relationship between supply flow rate and discharge flow rate for a hydraulic actuator. The configuration is to control a supply flow rate to a stick cylinder based on an opening area of the stick's direction change-over valve and stick's flow control valve, calculate a target opening area of the stick's flow control valve based on a target supply flow rate from hydraulic pumps A, B to the stick cylinder, the opening area of the stick's direction change-over valve, and a target differential pressure between hydraulic pump A and a load pressure of stick cylinder, and control the stick's flow control valve so as to keep the target opening area calculated.

The invention discloses a control method of a flap unloading platform, which is applied to a hydraulic control system of the flap unloading platform, and comprises the following steps: acquiring a starting signal, and enabling a power driving branch based on the starting signal; the system pressure of a hydraulic control system of the turning plate unloading platform is controlled by the power driving branch to be gradually increased; in response to the fact that the system pressure is equal to the preset value, the power-on state of the main electromagnetic valve is changed, the first proportional throttle valve and the second proportional throttle valve are adjusted based on the second working state of the main electromagnetic valve, the first lifting oil cylinder and the second lifting oil cylinder are controlled to act, and the turning plate unloading platform is driven to rotate; and in response to rotation of the flap unloading platform to the preset angle, the power-on state of the main electromagnetic valve is changed, so that the flap unloading platform is controlled to stop rotating based on the first working state of the main electromagnetic valve. By controlling the first proportional throttle valve and the second proportional throttle valve which are independent, independent control over the first lifting oil cylinder and the second lifting oil cylinder is achieved so that synchronous action can be achieved.

The invention discloses a balance valve, a hydraulic control system and an operation machine. A valve cavity is formed in a valve body of the balance valve, and an oil inlet and an oil return opening are formed in the circumferential wall of the valve cavity; the valve element and the control piston are inserted into the valve cavity in a sliding mode from the two axial ends, the valve element comprises a first element body and a second element body which is inserted into the first element body in a sliding mode in the axial direction, and a first concave part and a second concave part which are arranged at intervals in the axial direction are formed in the peripheral wall of the first element body. A first cavity and a second cavity are respectively formed between the first concave part and the inner peripheral wall of the valve cavity and between the second concave part and the inner peripheral wall of the valve cavity, so that the overflowing area between the first core body and the valve cavity can be increased, and the oil inlet and the oil return port are respectively and correspondingly communicated with the first cavity and the second cavity; the driving end of the control piston penetrates through the first core body, the control piston and the second core body are coaxially and oppositely arranged in a spaced mode, and the control piston moves in the axial direction to drive the second core body to move in the axial direction and drive the first core body to move, so that oil in the first cavity and oil in the second cavity are communicated or blocked.

The invention provides an intelligent assembly type high-speed rail pier top support maintenance construction hydraulic control method and system, and relates to the technical field of hydraulic control. The method comprises the steps that historical construction data of a plurality of historical time periods are obtained; acquiring historical environment data of a plurality of historical time periods; according to the historical environment data, the historical hydraulic pressure, the historical beam body lifting height, the historical beam body weight and the historical hydraulic pump parameters, a hydraulic pressure magnitude relation function is determined; acquiring weather forecast information, beam body data and hydraulic pump parameters of the current time period; and determining the hydraulic pressure of the current time period according to the hydraulic pressure relation function, the weather forecast information, the beam body data and the hydraulic pump parameters. According to the method, the influence of environmental factors on the maintenance construction effect can be effectively reduced, and the accuracy and objectivity of a hydraulic magnitude control result are improved.

The invention discloses a fluid pressure monitoring method and system, and relates to the technical field of pressure monitoring, and the method comprises the steps: determining a hydraulic circulation path, configuring a pressure sensing module, carrying out the real-time pressure monitoring of a first hydraulic oil path, a second hydraulic oil path and a third hydraulic oil path, and generating pressure distribution prediction information through the analysis of a hydraulic control module; through comparison of monitoring data and prediction information, an abnormal pressure distribution path and characteristics are accurately identified, abnormity judgment and dynamic correction are performed based on a reversible abnormity correction model, a correction hydraulic control signal is generated, and closed-loop control is implemented after the correction hydraulic control signal is input into a hydraulic control module. The method solves the technical problem that an existing hydraulic system is difficult to accurately recognize abnormal pressure distribution and carry out real-time dynamic correction under complex working conditions, and the system operation stability is affected, and achieves the purposes of accurately recognizing abnormal pressure distribution and carrying out real-time dynamic correction through multi-path pressure monitoring and a reversible abnormal correction model, and improving the system operation stability. And the operation stability of the system is improved.

The invention discloses an active and passive combined electro-hydraulic actuator and a method thereof, and belongs to the field of hydraulic control. The electro-hydraulic actuator comprises a hydraulic source, a hydraulic oil cylinder, a control system, an oil liquid outlet, a low-rigidity energy accumulator, a high-rigidity energy accumulator and a high-pressure energy accumulator, the hydraulic oil cylinder is an asymmetric hydraulic oil cylinder, the control system comprises a rotary servo valve and a rapid rotary switching valve, the rotary servo valve has a three-position four-way function, and the rapid rotary switching valve has a three-position four-way function. An oil outlet of the hydraulic cylinder is respectively connected with the oil liquid outlet, the low-rigidity energy accumulator, the high-rigidity energy accumulator and the high-pressure energy accumulator through a quick rotating switching valve. Active control and passive mode switching of the hydraulic oil cylinder are achieved by rotating the servo valve; connection switching among the energy accumulators is achieved by rapidly rotating the switching valve, so that the electro-hydraulic actuator is in different passive modes. The actuator system is high in response speed, the actuator can complete active and passive mode switching under the same stride, and the energy utilization rate is improved to the maximum extent.

An insert valve installed, at least partially, in a safety valve that includes a flow port disposed on an exterior of the insert valve, a poppet configured to control a fluid flow through the flow port, a piston rod, disposed uphole from the poppet, configured to move the poppet past at least part of the flow port, where the piston rod includes an upper exposed piston area exposed to an internal volume of the insert valve, and a lower exposed piston area exposed to the internal volume of the insert valve, and a hydraulic control port configured to control movement of the piston rod.

The invention relates to the technical field of hydraulic control, and provides a pump-controlled semi-active ship heave compensation hydraulic system and a control method thereof.The system comprises an active compensation hydraulic module, a passive compensation hydraulic module, a sensor module, a controller and a motion sensor; the passive compensation hydraulic module comprises a nitrogen cylinder unit, an energy accumulator unit, a gas-liquid converter, a seventh electromagnetic directional valve, a fourth electromagnetic directional valve and a passive compensation asymmetric hydraulic cylinder; the active compensation hydraulic module comprises a third energy accumulator, a servo motor, a two-way quantitative hydraulic pump, a first one-way valve, a second one-way valve, an active compensation asymmetric hydraulic cylinder, a first electromagnetic reversing valve, a second electromagnetic reversing valve and a third electromagnetic reversing valve. According to the invention, passive compensation and active compensation are fused, so that the compensation precision and efficiency are greatly improved; and an electro-hydraulic servo pump control mode is adopted, so that the advantage of high control precision of a valve control mode is reserved, and the stability is also improved.

The invention relates to the technical field of energy conservation of loader shoveling systems, and discloses a loader shoveling cooperative energy self-adaptive control method based on operation stage identification, which comprises the following steps: step 1, a signal acquisition module acquires whole vehicle state information data of a loader through a CAN (Controller Area Network) bus and a sensor; 2, the hydraulic control module judges the working stage of the current loader; and 3, the hydraulic control module completes self-adaptive matching of the operation mode and the operation stage through the electro-hydraulic proportional execution module based on identification of the operation stage of the loader, and actions of the movable arm and the bucket are autonomously achieved. On-line identification of the operation stage can be completed, and after identification of the operation stage is completed, the hydraulic control module automatically matches the corresponding operation mode and controls the movable arm and the bucket to autonomously execute corresponding actions.

The invention discloses a thin coal seam unmanned working face intelligent mining control method which comprises the following steps that after a thin coal seam working face is mined, mining parameters of the working face are collected through a detection system, and the mining parameters comprise three-machine operation parameters and mining working condition data; the detection system is used for processing the mining parameters and obtaining mining data, and then the communication system is used for sending the mining data to the control system; the control system is used for carrying out validity analysis on mining data, if the mining data does not meet requirements, the mining data are obtained again, and if the mining data meet the requirements, the electric hydraulic control system is controlled to drive the hydraulic component to act, the cutting control system is controlled to drive the coal mining machine to carry out cutting operation, and the straightening system is controlled to straighten the working face. According to the mining control method, intelligent mining of the thin coal seam can be achieved, the accuracy and efficiency of the whole monitoring and control process are high, and the continuity and safety of mining of the thin coal seam are fully guaranteed.

The utility model relates to the technical field of marine scientific investigation equipment, in particular to a winch emergency lowering and pressure compensation system which comprises a reversing valve, a winch assembly, a brake assembly and an emergency function assembly. The brake part is controlled by a brake assembly to brake the power motor, and two cavities of the power motor are communicated with the reversing valve to form a working loop. The emergency function assembly comprises an energy accumulator, a first stop valve, a hydraulic control valve and a speed regulating valve, the first stop valve, the hydraulic control valve and the speed regulating valve are sequentially communicated, the first stop valve and the speed regulating valve are correspondingly communicated with two cavities of the power motor to form an emergency lowering loop, and the energy accumulator is communicated with one cavity of the power motor through an energy storage oil way. The energy accumulator is further communicated with the two cavities of the power motor through a compensation oil way, the working loop and the compensation oil way are each provided with a control oil way for providing a control oil source for the brake assembly, and a second stop valve is arranged on the control oil way of the compensation oil way.

The invention discloses a universal multifunctional obstacle crossing vehicle body system for a deep-sea mining vehicle. The universal multifunctional obstacle crossing vehicle body system comprises a main vehicle frame, a hydraulic suspension system and an independent driving system. The hydraulic suspension system comprises a main supporting hydraulic push rod, an upper vehicle body and lower vehicle body connecting frame, an L-shaped driving system connecting frame, hydraulic steering push rods on the two sides, a steering wheel, a steering wheel bottom fixing piece, a spherical higher pair connecting shaft, a driving system universal connector and a corresponding hydraulic control loop. The independent driving system comprises a track system, a box body, a pitching hydraulic motor, a driving motor, an auxiliary bearing wheel and an auxiliary tensioning wheel set. Compared with a traditional crawler-type chassis, the universal obstacle crossing chassis provided by the invention has better obstacle crossing ability and flexibility, and can cope with more complex seabed conditions. And meanwhile, the universal chassis can adapt to different types of working environments by replacing different types of independent driving modules, so that the universal chassis has excellent multi-terrain adaptability. By means of the universal vehicle chassis, the passing rate and the working efficiency of various deep-sea mining devices in the complex seabed environment can be well improved.

The invention provides an underground coal mine air and water pumping switching electro-hydraulic control system and method, the electro-hydraulic control system comprises an air supply control module, a water supply control module, a negative pressure control module and an oil supply module, and the method adopts a remote control system to control the underground coal mine air and water pumping switching electro-hydraulic control system. According to the underground coal mine air and water pumping switching electro-hydraulic control system, air and water pumping electric control rapid opening and closing and rapid switching of different functions are achieved, the automation degree of air and water pumping switching is improved, and the air and water pumping switching time is shortened; and meanwhile, when dangerous working conditions that gas accumulation exceeds the limit due to hole blocking behind the drill hole or carbon monoxide gas appears in the drill hole and the like, rapid and automatic response processing can be achieved. The air and water pumping conversion efficiency is improved, the labor intensity of workers is relieved, and key technical support is provided for coal mine underground automatic drilling whole-process operation.

The invention provides a hydraulic control system of an asymmetric hydraulic cylinder, and relates to the technical field of hydraulic control, the hydraulic control system comprises a bidirectional hydraulic pump, a hydraulic motor and an energy accumulator, the bidirectional hydraulic pump is in transmission connection with a first servo motor, and a first oil port and a second oil port of the bidirectional hydraulic pump are connected with a rod cavity and a rodless cavity through a first oil way and a second oil way respectively; a first one-way valve is arranged between the second oil port and the rodless cavity; the hydraulic motor is in transmission connection with the generator which is connected with the electric energy storage unit. The hydraulic motor is connected with the first one-way valve in parallel; the energy accumulator communicates with the first oil way and the second oil way through a second one-way valve and a third one-way valve correspondingly. Four-quadrant seamless switching can be achieved, the structure is simpler, the complexity of a pipeline in a hydraulic system is remarkably reduced, energy collection can be conducted on oil discharged by a rodless cavity, and energy consumption is further reduced.

The invention discloses vacuum brazing equipment and method for a plate-fin heat exchanger, relates to the field of welding, and aims to solve the problems of low heating efficiency and difficulty in deformation control caused by structural characteristics of the plate-fin heat exchanger and characteristics of vacuum radiation heating at present. Structures such as a hydraulic control system, an upper water-cooling sealing conductive pressure head, a lower conductive base and a tool are added on the basis of traditional vacuum brazing equipment, the structures are compounded with a furnace pipe, an upper electrode of the upper water-cooling sealing conductive pressure head is of a distributed structure and can move up and down through the hydraulic control system, and the upper electrode of the lower water-cooling sealing conductive pressure head can move up and down through the tool. And by matching with a tool, a workpiece can be always stressed uniformly, and continuous and stable self-resistance extremely-fast heat generation electrifying can be ensured. Double-feedback series control is adopted to achieve double-heat-source heating, the heating process time is shortened, a pressure-temperature coupling control method is adopted, it is ensured that stress is uniform, deformation is reduced, and the heating efficiency and the welding quality consistency are improved. And rapid and uniform heating and small deformation control of the workpiece can be realized.

The invention relates to the technical field of metal rust removal, in particular to a rust removal cleaning device for metal surface treatment, which comprises a matched placement structure and a cleaning treatment structure, the lower end of the matched placement structure is fixedly connected with the cleaning treatment structure, and a filtering treatment seat is arranged in the cleaning treatment structure in a limiting manner; the filtering treatment base can be separated from the cleaning treatment structure, the matched placement structure comprises a hydraulic control base, a protection plate frame, a telescopic guide rod, a supporting table plate and a clamping control part, the hydraulic control base is fixedly installed at the center of the protection plate frame, and the supporting table plate is connected to the lower end of the hydraulic control base in a limiting mode; the lower end of the supporting table plate is connected with a clamping control component in a limiting mode, the clamping control component comprises a connecting mechanism and a metal plate, and the connecting mechanism is used for limiting and fixing the metal plate. And through the arrangement of the matched placement structure and the cleaning treatment structure, metal rust removal work is facilitated.

The invention provides a hydraulic remote opening and closing method and system for a stratum isolation valve, and the method comprises the steps: obtaining underground sensor data, and building an underground tubular column topological structure model; constructing a graph neural network for the fluid flow data and the pipeline network, and calculating an optimal opening and closing path; real-time pressure compensation calculation is conducted on the optimal opening and closing path, it is ensured that the valve can be dynamically adjusted during execution, and an optimized control signal is obtained; and converting the control signal into an actual hydraulic opening and closing action, monitoring the state of the valve in real time, monitoring the pressure and the flow of each node through real-time feedback, comparing the pressure and the flow with the target pressure and the target flow, and if the comparison value exceeds a preset threshold value, recalculating a new control signal, and finely adjusting the hydraulic valve. The optimal opening and closing path is intelligently calculated, and a real-time pressure compensation mechanism is combined, so that hydraulic control is more accurate and reliable.

Disclosed is a hydraulic control system for safe rapid opening or closing of a valve. The hydraulic control system comprises a hydraulic cylinder (71), a pressure oil line (141), an oil return line (151), an oil drain line (161), a quick oil return line (171) and a valve manifold (181), wherein the inside of the valve manifold is provided with a three-position four-way directional control valve (51), a bidirectional hydraulic lock (31), a first two-position four-way directional control valve (61) and an energy accumulator (191); a first cartridge valve (101) is connected between the oil drain line and a rod cavity of the hydraulic cylinder, and a pilot port of the first cartridge valve is connected to a port A of the first two-position four-way valve; an oil inlet of the energy accumulator is connected to each of the pressure oil line and the oil return line, a first check valve (81) is connected between the oil inlet of the energy accumulator and the pressure oil line, and a second cartridge valve (102) is connected between the first check valve and the energy accumulator; and the second cartridge valve is connected to a rodless cavity of the hydraulic cylinder, and a pilot port of the second cartridge valve is connected to the port A of the first two-position four-way directional control valve. The hydraulic control system for safe rapid opening or closing of a valve allows for safe rapid opening or closing of a valve.