337results about How to "Reduce operational risk" patented technology

The invention relates to the technical field of drilling parameter optimization control, and provides a petroleum drilling parameter optimization method and system and a storage medium. Comprising the steps that torque fluctuation amplitude and bit pressure response delay data are collected in real time, an original data sequence is constructed, and parameter trend data are obtained; analyzing the parameter trend data to identify a stratum change mode, extracting trend feature information, and when the trend feature information meets a preset condition, determining a corresponding abnormal mode identifier; generating a parameter adjustment direction of drilling control according to the abnormal mode identifier, and optimizing the parameter adjustment direction in combination with parameter weight analysis and a real-time feedback mechanism to obtain final optimization guidance data for guiding drilling operation; and mapping the final optimization guidance data to a control interface, and generating a dynamic adjustment instruction for drilling operation. The problems that in the existing petroleum drilling process, parameter adjustment lags behind, and stratum changes are difficult to adapt are solved, and intelligent optimization and dynamic control over drilling parameters are achieved.

The application discloses a mechanical interlocking plug-in box, which comprises a box body, a box cover, and a first chamber and a second chamber formed by an end sealing plate in the box body; a lock foot mechanism is arranged in the first chamber, and a circuit breaker is arranged in the second chamber; a vertical sliding groove is formed on the surface of a guide movable plate of the lock foot mechanism; a limiting rod is horizontally arranged in the first chamber and is in limiting cooperation with the vertical sliding groove, and one end of the limiting rod extends into the second chamber along the axial direction of the rod to interlock the guide movable plate; a linkage operating mechanism is connected between the limiting rod and the circuit breaker, and is used for driving the limiting rod to cancel the limiting of the guide movable plate and synchronously controlling the circuit breaker to make a breaking action; and an opening and closing mechanism is connected between the linkage operating mechanism and the circuit breaker, and is used for interlocking the breaking state of the circuit breaker and hindering the circuit breaker to make a closing action. The application realizes the interlocking between the lock foot of the plug-in box and the opening and closing mechanism of the plug-in box, and improves the safety protection level.

The invention discloses a photovoltaic power station minute-level power prediction method and system fused with a satellite cloud picture, and belongs to the technical field of data processing and prediction, and the method comprises the steps: obtaining a continuous satellite cloud picture sequence of an area where a target photovoltaic power station is located; obtaining cloud cluster individuals and time-space trajectory data, and extracting time-varying multi-dimensional vital sign parameters of the cloud cluster individuals; inputting the multi-dimensional vital sign parameters into a cloud cluster state evolution prediction model to obtain a cloud cluster state evolution trajectory; obtaining a three-dimensional digital model of the target photovoltaic power station, and generating a super-local irradiance distribution diagram sequence of the target photovoltaic power station based on the state evolution trajectory; and power station electrical characteristic parameters of the target photovoltaic power station are acquired, and a power prediction sequence of the target photovoltaic power station is calculated according to the super-local irradiance distribution diagram sequence. By adopting a means of tracking and predicting multi-dimensional vital sign evolution of cloud cluster individuals and combining a power station three-dimensional model to perform light and shadow simulation calculation, the accuracy of power prediction can be improved.

The utility model provides a stone material unloading machine's board material dump receiving mechanism, including the supporting plate device, the blanking device and the broken part, the supporting plate device can lift and reciprocatingly move and suspend in the front side of stone processing position, the blanking device is arranged in the back below of supporting plate device, the broken part can lift and reciprocatingly move and be arranged in the clearance between two pieces of vertical stone board, and make the vertical stone board of processing position and the connecting part of lower end realize fracture, the supporting plate device passes through the lift and horizontal movement and will be broken stone board on stone processing position stable receiving transition to the blanking device surface, the utility model discloses a reasonable cooperation through supporting plate device and blanking device, can be stable receiving vertical state's stone board after the stone board broken, avoid directly using the sucking disc and carrying on adsorption, reduced equipment structure complexity and operation risk.

The application discloses a kind of based on task partition's shipborne unmanned aerial vehicle navigation beacon group path planning method, belong to offshore navigation beacon inspection technical field.The method first obtains navigation beacon, mother ship, obstacle and unmanned aerial vehicle constraint parameter, is divided into navigation beacon by recursion K-means and is checked by threefold verification of operation radius, load, endurance, and is recursively subdivided if unqualified;Second generation mother ship candidate residence point and correct to safe water area, use A* algorithm to plan the global transfer path of mother ship, model as closed loop traveling salesman problem in cluster inspection, to improve self-organizing mapping neural network is solved unmanned aerial vehicle path in combination with tabu search.The system contains data input, task partition and the like module.The scheme makes mother ship only stay near task cluster, greatly shortens voyage, reduces risk, improves inspection efficiency and engineering feasibility.

The utility model discloses an oxygen -enriched bottom -blowing smelting furnace structure, include: base, the top surface symmetrical fixed connection of base has the support, smelting furnace main part, and the both ends of smelting furnace main part are respectively sleeved and have the closed cylinder, and the closed cylinder rotation is connected on the support, and the end plate is fixed in the closed cylinder end, and the rotating assembly is arranged between the closed cylinder and smelting furnace main part, and the closed cylinder bottom is installed with the discharge gate in rear end, and the smelting furnace main part is opened with the discharge port, transmission mechanism, and transmission mechanism includes transmission assembly and support component, cooling module, and cooling module is arranged in smelting furnace main part, and the air inlet spray head, and the air inlet spray head detachable connection is in the bottom of smelting furnace main part, and monitoring module, and monitoring module is installed in smelting furnace main part. The oxygen -enriched bottom -blowing smelting furnace can pass through the furnace body rotation and bottom -blowing oxygen -enriched and promote the reaction efficiency and the uniformity, and the utility model discloses can pass through the furnace body rotation and bottom -blowing oxygen -enriched and promote the reaction efficiency and the uniformity, and have efficient, easy maintenance, safe and stable and environmental protection adaptability.

The utility model relates to aluminium alloy production technical field, concretely relates to a hoist dress for aluminium alloy production, including hoist frame and two lifting rings oppositely arranged in the top of hoist frame, the lifting ring is used for providing the force point for the lifting hook of truss, makes it be hoisted and transported, the hoist dress still includes: a plurality of horizontal supports fixed in the bottom of both sides of hoist frame transversely, the horizontal support is used for and hoist frame enclose and form inverted T's loading frame, the utility model discloses a plurality of horizontal supports are arranged side by side in the bottom of both sides of hoist frame, make the inverted T's loading frame of both enclose and stably place on the ground, cooperate at least one supporting piece respectively arranged in the both sides of hoist frame and the adjusting piece for transverse control adjacent two supporting pieces to spread out or close, make the supporting piece spread out and be piled up into the aluminium alloy of bundle from below to top layer by layer, only needs one person to operate auxiliary handling tool, reduces the operation risk and manual use cost.

The utility model discloses a cutting plate grabbing device which comprises a main hanging beam, an opening and closing driving mechanism and a cutting plate holding claw which are sequentially arranged from top to bottom. The main lifting beam comprises a strip-shaped beam body which is horizontally arranged; the opening and closing driving mechanism comprises a worm lifting mechanism, a connecting beam and two connecting rod groups; the worm lifting mechanism is centrally fixed at the bottom of the main lifting beam, and a movable lead screw of the worm lifting mechanism is vertically downward and is connected with a horizontally arranged connecting beam; the two connecting rod sets are symmetrically arranged on the two end sides of the main beam body, and the top ends of two connecting rods of each connecting rod set are hinged to the end wall of the main beam body. The plate cutting holding claw is composed of two clamping claws symmetrically arranged below the two connecting rod sets, each clamping claw is composed of two crossed and hinged fold-line-shaped claw bodies, the top ends of the two fold-line-shaped claw bodies are hinged to the bottom ends of the two connecting rods on the same side, and the bottom ends of the two fold-line-shaped claw bodies are provided with oppositely-arranged hook bodies. The cut plate grabbing device is connected with hoisting equipment, so that the hoisting operation of bundled cut plates can be realized, manual operation assistance is not needed, the operation efficiency is high, and the risk is low.

The invention relates to a method for rapidly determining the content of K.2. 2.2. 2 in an FDG card sleeve kit leacheate, and belongs to the technical field of radiopharmaceutical analysis. The method comprises the following steps: selecting a 1110 + / -5 cm <-1 > peak as a quantitative characteristic peak of K.2.2. 2, wherein the peak corresponds to symmetric stretching vibration of a C-O-C ether bond in a K.2.2. 2 molecule; selecting a 2253 + / -3cm <-1 > peak as an internal standard peak, wherein the peak corresponds to C = N triple bond stretching vibration of acetonitrile in the leacheate; preparing a K.2. 2.2. 2 gradient solution with the concentration of 0.05 to 5 mg / mL, and fixing the concentration of K2CO3 to be 0.5 to 2 mg / mL; the method comprises the following steps: acquiring a spectrum by adopting an ATR technology, setting the resolution ratio to be 4cm <-1 > and the scanning frequency to be 32, and establishing a K.2. 2.2. 2 linear model according to the ratio of A1110 / A2253; eliminating baseline drift by adopting a second derivative spectrum; and a PLS algorithm is adopted to correct trace interference of K2CO3.

The utility model discloses a support tool for holding and supporting gas branch pipe before gas meter when maintaining, including the clamp of the hoop, the clamp of the hoop includes the three arc page piece of the axis setting around the gas branch pipe to be embraced, the central angle corresponding to three arc page piece's sum is not more than 360 degrees, not less than 210 degrees, and the hinge connection is shown in turn, and the inner concave surface of the gas branch pipe to be embraced is all equipped with the antiskid pattern, or is equipped with the antiskid layer, the two hinge connection's rotary shaft that three arc page piece shows in turn all are parallel with the axis of the gas branch pipe to be embraced, in three arc page piece that the hinge connection is shown in turn, two end page piece located between two ends are driven through push rod hinge mechanism, and the middle page piece between two end page piece rotates relatively. The utility model not only can improve the work efficiency of maintaining indoor gas meter front branch pipe, and quickly eliminate the security risk, but also can reduce the labor load, replace the traditional tool and hold indoor gas meter front branch pipe quickly.

This utility model discloses a cryogenic butterfly valve operated by an extended rod, including a valve body, a butterfly plate, a valve stem, and a power unit. The power unit drives the valve stem to rotate the butterfly plate relative to the valve body, opening and closing the medium flow channel inside the valve body. An extended sleeve is connected to the upper end of the valve stem, and an extended rod is connected to the power unit. The end of the extended rod opposite to the valve stem has a circumferential linkage structure. The extended rod is inserted into the extended sleeve, and a sliding groove is provided on the inner side of the extended sleeve. A slider matching the sliding groove is provided on the outer side of the extended rod. In use, the cryogenic butterfly valve of this utility model achieves circumferential linkage between the extended rod and the valve stem to control the rotation of the butterfly plate. When not in use, it can be raised along the axial groove of the sliding groove, so that the valve stem and the extended rod are separated, thereby reducing or avoiding heat conduction. It achieves circumferential linkage installation only when in use, avoiding the problem of long-term influence of the temperature of the medium in the pipeline on the power unit, and also reducing operational risks.

The application discloses a fishing device used in the technical field of phosphating, which comprises a first hook, a second hook and a third hook, the first hook is connected with the second hook and the third hook, the third hook is connected with the first hook and the second hook, the top of the first hook, the second hook and the third hook is connected with a traction part, the traction part is used for pulling the first hook, the second hook and the third hook, when the force applied on the first hook by the traction part is greater than the force applied on the second hook and the third hook, the first hook vertically rises, the second hook and the third hook downwardly incline, and the second hook and the third hook are fixed from the side or the bottom of the hanging object by the downward inclination of the second hook and the third hook.

The invention discloses a heavy object replacement positioning method based on machine vision and PLC control, and belongs to the technical field of heavy object replacement in high-altitude narrow space. According to the method, firstly, a calibrated 3D camera is used for collecting three-dimensional point clouds of stone pier bolt holes and weight hole positions, pose data are extracted through preprocessing and feature matching, and coordinate conversion is achieved through hand-eye calibration and transmitted to a PLC. And then the PLC analyzes rotation and translation parameters required by the weight according to a preset algorithm, controls the hydraulic cylinder and the linear module to adjust the pose of the weight, gradually completes rotation and X-axis and Y-axis movement, and achieves alignment of each hole site of the weight and a corresponding stone pier bolt hole. The device can realize automatic precision positioning of heavy object replacement in a high-altitude narrow environment, has the advantages of high precision, strong adaptability, safe and reliable operation and the like, and can effectively solve the problem of difficulty in manual alignment.

The utility model discloses a management, investment and control integrated intelligent fishery service robot, which relates to the technical field of fishery breeding services, and comprises a mounting plate, a cleaning mechanism is mounted at the bottom of the mounting plate, the cleaning mechanism comprises a motor, and the output end of the motor is fixedly connected with a driving bevel gear. The driving bevel gear is in meshed connection with a driven bevel gear, and the bottom of the driven bevel gear is coaxially connected with a half gear; the motor is started, the output end of the motor drives the driving bevel gear to rotate, the scraper is driven to rotate around the camera, impurities on the surface of the camera are scraped, cleaning operation is completed, and view shielding caused by attachment or winding of impurities such as aquatic plants, suspended solids and algae on the surface of the camera is avoided; the problems of distortion of water quality monitoring data and blurred fish school activity pictures are reduced, and the accuracy of water area environment judgment, feeding, fishing and other operations of culture personnel is improved.

The utility model belongs to the field of mining drilling machines, and relates to a full-section drilling machine with a drilling rod conveying system, which comprises a moving platform, a drilling rod box, an auxiliary manipulator, a posture adjusting device, a drilling rod transporter, a main manipulator and a rack, and the posture adjusting device comprises a revolving platform, a lifting sleeve, a transporter gyrator and a dip angle gyrator. The rotating platform serves as a carrier of the posture adjusting device and is rotationally connected to the movable platform, the lifting sleeve is vertically installed on the rotating platform in a lifting mode, the transporter gyrator and the dip angle gyrator are both installed on the lifting sleeve, and the transporter gyrator and the dip angle gyrator are installed on the lifting sleeve. The dip angle gyrator and the transporter gyrator are both located on the side, away from the drill rod box, of the lifting sleeve. The drill rod transporter is arranged at the top of the transporter gyrator, and the dip angle of the drill rod transporter is adjusted through the transporter gyrator; the machine frame is arranged on the side, away from the lifting sleeve, of the dip angle gyrator in a side hanging mode, and the main mechanical arm is installed on the machine frame and rotates along with the machine frame.

This utility model discloses a dedicated drawer switch and switch cabinet developed based on a pull-out low-voltage switchgear, belonging to the field of power supply equipment. The drawer switch includes a drawer body, an input socket, a switch assembly, and a locking assembly. The input socket is located on the drawer panel and electrically connected to a disconnecting switch. The switch assembly includes an operating handle and a drive rod. The operating handle is rotatably mounted on the drawer panel and can rotate between an open and closed position. The operating handle drives the disconnecting switch via the drive rod. The locking assembly includes a connecting structure and a locking pin. A fixing hole is provided in the drawer compartment corresponding to the locking pin. The locking pin is connected to the drive rod via the connecting structure. When the operating handle is in the open position, the locking pin disengages from the fixing hole; when the operating handle is in the closed position, the locking pin is inserted into the fixing hole. The switch cabinet includes a drawer compartment, and the drawer compartment is equipped with the aforementioned drawer switch.

The utility model relates to water tank technical field discloses a combined stainless steel water tank, including the combined water tank that is provided with the water inlet end and the water outlet end, the water outlet end of combined water tank is installed with the water outlet pipe, the one end of water outlet pipe is away from combined water tank and is welded with the cleaning storehouse, the front and back of cleaning storehouse all are provided with the communicating hole, the one end surface of cleaning storehouse is away from water outlet pipe and is welded with the filter connecting pipe in the position of facing the communicating hole, the one end of filter connecting pipe is away from water outlet pipe and is detachably installed with the filter assembly. The combined stainless steel water tank, through the lifting of silica gel brush hair can clean the stainless steel filter screen filter end, need not to disassemble the filter device to clean the stainless steel filter screen conveniently and quickly, greatly simplifies the maintenance process, reduces the labor intensity and operation risk, the impurity cleaned out is directly discharged from the blowoff pipe through the water flow, will not backflow to the inside of combined water tank, prevents the secondary pollution of the water in the inside of combined water tank when cleaning the stainless steel filter screen.

The utility model belongs to the technical field of intake manifolds, and provides an intake manifold device for a compressed air system of a power station, which comprises a steam pocket, a reducer and a branch pipe, two ends of the steam pocket are respectively provided with an air inlet and a water outlet, the reducer comprises a first reducer and a second reducer, the first reducer is connected with the air inlet of the steam pocket, and the second reducer is connected with the water outlet of the steam pocket. One end, far away from the steam pocket, of the second reducer is connected with the drain valve; a plurality of branch pipe connecting ports are uniformly formed in the two sides of the steam pocket, each branch pipe connecting port is communicated with a branch pipe through a branch pipe seat, and one end, far away from the steam pocket, of the branch pipe is connected with a user pipeline through a branch valve. The utility model provides an intake manifold device for a compressed air system of a power station, which can enable all user pipelines of the compressed air system to be arranged in a centralized manner, realize integration, improve the space utilization rate and facilitate the operation of overhaul and maintenance.

The utility model provides a wear-resistant rubber covered roller for a printing machine, relates to the technical field of rubber covered rollers for printing machines, and solves the problems that printing parts outside the rubber covered roller can be replaced in order to ensure the printing quality, but the printing parts of a common rubber covered roller are difficult to replace. In the prior art, the rubber roller generally does not have a good stable structure to assist the connection stability between the rubber roller and a printing part, so that the printing quality is influenced due to looseness between the printing part and the rubber roller. A wear-resistant rubber roller for a printing machine comprises a connecting shaft, a rubber roller and a rubber roller body, fixed side seats are symmetrically and fixedly mounted at the two ends of the connecting shaft; after the connecting sleeve is replaced, an operator only needs to rotate the knob to drive the limiting screw rod to rotate and push the limiting sliding block to move until the limiting teeth at the bottom of the limiting screw rod are completely clamped with the limiting teeth on the limiting block of the rubber roller main shaft, so that the fixed side seat is effectively prevented from loosening due to vibration or external force, and the long-term stability of the connecting sleeve is ensured.

The invention belongs to the technical field of data processing, and particularly relates to a single molecule tracing data processing method and system, computer equipment and a storage medium. The method integrally executes the following steps in a local graphical user interface environment: performing visual preprocessing operation on original single molecule tracing image data; based on the preprocessed original single-molecule tracing image data, detecting a single-molecule peak value and carrying out sub-pixel precision fitting to generate single-molecule positioning point data; associating the single-molecule positioning point data into single-molecule movement track data through a proximity search algorithm; and performing diffusion kinetic parameter analysis, limited radius estimation analysis and trajectory motion state classification analysis on the single-molecule motion trajectory data, and outputting multi-dimensional kinetic parameters. A data processing method is integrated in a local graphical user interface environment, and in addition, by executing diffusion kinetic parameter analysis, limited radius estimation analysis and track motion state classification analysis, a user can obtain richer multi-dimensional kinetic parameters.

This utility model discloses a medical suture locking device and its usage method, aiming to solve problems such as complex suturing operations, uneven tension, and difficulty in synchronous adjustment of multiple sutures in existing technologies. The device consists of a clamping shell, clamping latches, a locking mechanism, a spring-loaded mechanism, and medical sutures. Through a socket-type connection and a sliding rail groove structure, it achieves precise suture fixation and tension control. The spring-loaded mechanism design ensures that the clamping latches automatically spring back to the closed state, facilitating rapid suture adjustment; the locking mechanism, in conjunction with the limiting groove structure, effectively prevents latch displacement and suture loosening. The device is compatible with various suture specifications, and the optimized tooth shape enhances the fixing force. Compared with traditional technologies, this utility model is simple to operate, has stable performance, significantly improves surgical efficiency and safety, and is particularly suitable for high-precision surgeries such as valve repair, providing an ideal solution for surgical procedures.

The utility model provides a transportation hanging ring assembly which comprises a hanging ring. The hanging ring consists of a fixing part and a connecting part which form an obtuse angle; the fixing part is fixedly connected with a body of the injection molding machine through bolts; the connecting part extends away from the body of the injection molding machine and is used for connecting a rope. The fixing part and the connecting part are integrally formed to form a fixed integral structure, so that the problem caused by free swinging of a traditional lifting ring is avoided, and when the injection molding machine is fixed on a truck frame or a cargo ship body for transportation through the lifting ring, displacement of the injection molding machine caused by bumping, steering and shaking of a vehicle or a ship can be effectively prevented, and the risk of collision between the injection molding machine and a transportation carrier is reduced; equipment damage is avoided, and meanwhile potential safety hazards caused by infirm fixation are eliminated. And in the hoisting and transferring process, the hoisting ring assembly can reduce swinging of the hoisting ring, so that the posture of the injection molding machine is more stable, the operation difficulty and risk are reduced, and the safety and reliability in the hoisting process are improved.

The invention relates to cargo transportation equipment, in particular to transportation equipment for loading and unloading liquid dangerous cargos, and aims to solve the technical problems that most valves used by existing common tank containers are manually opened and closed and need to be manually operated during use, the operation risk is high, and the efficiency is poor. The oil gas recovery device comprises a gas phase pipeline, an oil gas recovery connector, an oil gas recovery connector interlocking valve, an oil gas recovery valve, a sideboard vent valve, a main control gas source connector and a main control switch, the oil gas recovery valve is connected with the oil gas recovery connector through the gas phase pipeline, one end of the sideboard vent valve is communicated with the atmosphere, and the other end of the sideboard vent valve is connected with the gas phase pipeline through a first tee joint; the oil and gas recovery joint interlocking valve is mounted on the oil and gas recovery joint and is in a normally-closed state; a main control switch air inlet is connected with the main control air source connector, an air outlet is connected with the air inlet end of the oil-gas recovery connector interlocking valve and the oil-gas recovery valve, and the air outlet end of the oil-gas recovery connector interlocking valve is connected with the side plate vent valve.

The invention provides an unmanned aerial vehicle cluster collaborative inspection method and system for an ultra-high voltage power transmission line, relates to the technical field of power transmission line operation and maintenance, and solves the limitation problems of low collaborative efficiency, difficulty in data synchronization and the like of the current unmanned aerial vehicle cluster technology in line inspection. The method comprises the following steps: firstly, establishing a line three-dimensional digital twinborn model, dividing a to-be-patrolled line into a plurality of patrolling areas, and planning an initial patrolling path for each unmanned aerial vehicle in an unmanned aerial vehicle cluster; the unmanned aerial vehicles are classified into main unmanned aerial vehicles, detection unmanned aerial vehicles and operation unmanned aerial vehicles, the detection unmanned aerial vehicles collect environment information in advance according to the initial patrol path, and the main unmanned aerial vehicles dynamically adjust the flight path of the operation unmanned aerial vehicles accordingly; the operation unmanned aerial vehicle performs preprocessing and standardized packaging on the collected multi-source data, and a formed data packet is uploaded to the cloud platform by the main unmanned aerial vehicle to analyze and identify line defects. The system has the advantages and characteristics of full coverage, high efficiency and high precision of ultra-high voltage transmission line inspection.

This utility model discloses an odor purification device for paint spraying workshops, including an odor purification mechanism. The odor purification mechanism includes a guide frame, with guide blocks slidably mounted on both sides of the bottom center of the guide frame. Rubber pads are adhered to the inner sides of a set of guide blocks, and a locking tube is threadedly fixed to the bottom center of the guide blocks. A locking post is threaded into the center of the locking tube, and a shaft seat is fitted onto the lower end of the locking post. An activated carbon adsorption frame is fixedly connected to the bottom end of the shaft seat, and the frame is filled with activated carbon. The device also includes a convenient installation mechanism, including a mounting frame. An electric push rod passes through the bottom center of the mounting frame, and a rotating motor is fixed to the output end of the electric push rod. A threaded post is fixed to the output end of the rotating motor, and the lower side of the inner wall of the mounting frame engages with the mounting blocks. This utility model requires only a short period of work at a height in one location, reducing operational risks and intensity, improving effectiveness, and meeting requirements.

The utility model discloses a kind of for joist pulls out column's underpinning jacking platform, including frame body underpinning platform and jacking platform;Frame body underpinning platform is set to the lower outer periphery of column to be constructed, and by four steel columns fixedly supported on foundation respectively arranged at its corner position;Jacking platform is set to the upper outer periphery of column to be constructed, jacking platform is connected by being anchored with the column to be constructed by multiple along its circumferential uniform setting of planting nail, and the gap between jacking platform and the column to be constructed is filled with grouting material;Four corner positions between the frame body underpinning platform and the jacking platform are respectively provided with underpinning support, and four edges of the frame body underpinning platform and the jacking platform are respectively provided with vertical jack.The utility model guarantees the effective connection of underpinning platform and the upper structure of column to be constructed, realizes the jacking unloading of upper structure of column to be constructed, and effectively reduces the operation risk in jacking unloading construction process.

The utility model relates to the field of dyeing equipment, in particular to dyeing equipment for regenerated polyester yarns. Comprising a frame, a mixed-flow pump, a stirring barrel, a cover, a stirrer, an adjusting structure and an auxiliary structure, the mixed-flow pump is installed on the upper surface of the frame, the stirring barrel is installed on the upper surface of the frame, the arc surface of the stirring barrel is fixedly connected with the cover through the adjusting structure, and the stirrer is rotationally connected to the inner wall of the stirring barrel through the auxiliary structure. The arc surface of the stirring barrel is provided with an adjusting structure, the adjusting structure comprises a fixing plate, the fixing plate is fixedly connected with the stirring barrel, and the upper surface of the fixing plate is fixedly connected with a motor. The dyeing equipment for the regenerated polyester yarn has the advantages that the cover can be automatically opened or closed, the risk that personnel make direct contact with the equipment can be reduced through automatic cover opening, and the operation safety is improved especially in the high-temperature or chemical dye environment.

The application belongs to the technical field of petroleum drilling equipment, and discloses a combined blowout preventer pressure testing device and a use method. The combined blowout preventer pressure testing device comprises a pressure testing blind plate guide shoe and a pressure testing blind plate simulated drill string. The pressure testing blind plate guide shoe comprises an automatic guide mechanism, a centering mechanism, a pressure testing blind plate, a connecting groove, a water pressure interface, a pressure relief port and a sealing steel ring groove. The automatic guide mechanism is fixed to the top of the centering mechanism. The centering mechanism is located at the top of the pressure testing blind plate. The connecting groove is arranged at the center of the automatic guide mechanism and the centering mechanism. The lower end of the pressure testing blind plate simulated drill string is detachably arranged in the connecting groove. The water pressure interface and the pressure relief port are arranged in the centering mechanism and the pressure testing blind plate. The sealing steel ring groove is arranged on the upper end surface of the pressure testing blind plate. The combined blowout preventer pressure testing device is stable and reliable, can cover all specifications of blowout preventers, is convenient and fast to operate, saves time and effort, has high dismounting and mounting efficiency, and has small operation risk.

This utility model belongs to the field of lens fixture technology and discloses a pin retrieval fixture, including a base, a movable component, and a push pin. The movable component is movably disposed in the base along a first direction, and the push pin is disposed on the base. The lens can be confined in the movable component and presses the movable component to move towards the base along the first direction. During the movement of the lens, the push pin can push out the pin in the lens. This utility model uses the movable lens to press the movable component to move towards the base along the first direction, so that the push pin can push out the pin for easy retrieval. By keeping the push pin static and using the movement of the lens to push out the pin and retrieve it at the top of the lens, this method is not only convenient for operators to operate, but also simple to operate, and allows for quick lens loading and unloading. It can realize assembly line operation, avoids the complicated operation of manually using tweezers to retrieve the pin, reduces the operational risks to operators, and has higher efficiency and retrieval efficiency.

The invention discloses a robust planning method for optical storage and charging cooperative access of a power distribution network and a related device. The method comprises the following steps: acquiring data; taking the minimum total cost of the power distribution network as a target, considering power supply output, node voltage, a power flow equation, power balance and capacity upper limit safety operation constraints, and constructing a planning model of power distribution network optical storage and charging cooperative access; based on the acquired data and the planning model of the power distribution network optical storage and charging cooperative access, considering the uncertainty of photovoltaic output and charging demands, and establishing a robust planning model of the two-stage power distribution network optical storage and charging cooperative access; according to the method, a robust planning model of two-stage power distribution network optical storage and charging cooperative access is decoupled into a primary problem and a secondary problem, the primary problem is converted into a single-layer optimization problem through a strong duality theory, and finally, the primary problem and the secondary problem are alternately iteratively solved to obtain a robust planning result. According to the invention, the robustness of the distribution network planning scheme can be improved.