2951 results about "Closed space" patented technology

The invention discloses a large-section long-footage mechanical blasting mixed excavation method suitable for a subway station, and relates to the technical field of underground rail transit engineering, and the method comprises the following steps: obtaining a tunnel section contour, a geologic structure and blasting parameters, building a three-dimensional blasting wave propagation inversion model, and combining geology and material heterogeneity to obtain a three-dimensional blasting wave propagation inversion model; and identifying a closed space region forming reflection interference, and predicting a space point location where blasting wave energy is abnormally accumulated. Based on the three-dimensional blasting wave propagation inversion model, the abnormal wave energy accumulation area is predicted in combination with geological heterogeneity, the high-risk blasting section is recognized, parameters are reconstructed, vibration real-time monitoring and model feedback correction are assisted, a closed-loop control system is constructed, local wave crest abnormity is effectively restrained, and the safety and controllability of large-section tunnel blasting construction are improved.

The application provides a large-span bridge substructure vehicle-fire wind force real-time hybrid test platform and implementation method, the platform comprises a physical loading and transmission system, a T-shaped wind-fire coupling simulation system, a modularized prying integrated system, an intelligent control and calculation system and a multi-dimensional high-precision monitoring system. The method realizes real-time pre-test of the boundary displacement / force of the test piece through the construction of a numerical substructure fast calculation model based on LSTM and converts the boundary displacement / force into a loading instruction to drive the through core jack to realize thermal force coupling interactive loading; the T-shaped wind-fire coupling simulation system reproduces the real vehicle fire scene under the influence of the environmental wind. The test platform supports independent loading of any component of the cable system, can execute open space self-defined fire test and closed space standard fire test, and accurately analyzes the cable failure mode, critical temperature threshold and damage evolution law under fire through the multi-dimensional high-precision monitoring system, thereby providing a high-fidelity test platform and analysis method for fire resistance design of large-span bridges.

A contact lens assembly includes a cup, a dry contact lens that is not for being worn on an eye, a sealing layer removably connected to the cup, and a wetting liquid supply. The sealing layer and the cup jointly form an enclosed space that receives the dry contact lens therein and that does not accommodate any liquid. After at least one of the sealing layer and the cup produces an opening, the cup can receive a wetting liquid from the wetting liquid supply through the opening, such that the dry contact lens is immersed in the wetting liquid to form a wet contact lens that is suitable for being worn on the eye and that has a water content greater than a water content of the dry contact lens.

The present invention discloses a prosthetic heart valve comprising at least two valve components, a sealant covering the valve components, and an edge-sealing structure. A space is formed between the valve components covered with the sealant. The edge-sealing structure has a closed end face and connects the ends of the sealant to form a closed space within the space. The prosthetic heart valve provided by the present invention can reduce the risk of thrombosis between the valve components. Because the edge-sealing structure is flexible, it has little effect on the compression and gripping of the prosthetic valve, and the addition of the edge-sealing structure does not affect the normal function of the prosthetic valve.

The invention discloses a scanning electron microscope. The scanning electron microscope comprises a scanning electron microscope main body and a sample table located in a sample cavity, the scanning electron microscope main body is fixedly connected with the upper cover of the sample cavity, so that a closed space is formed in the sample cavity; a closed-loop groove is formed in an upper cover of the sample cavity; wherein the groove is located outside the connection position of the upper cover of the sample cavity and the scanning electron microscope main body, and the bottom of the groove is not higher than the supporting surface of the sample table; a magnetic shielding layer is arranged in the groove; wherein the length of the magnetic shielding layer is not less than the distance from the objective lens of the scanning electron microscope main body to the supporting surface of the sample stage.

The module cabin structure capable of being assembled and expanded comprises a structural frame and wall surfaces, the wall surfaces comprise a standard wall, a window wall and a door wall, the length-width-height ratio of the structural frame is 2: 1: 1, the standard wall, the window wall and the door wall are the same in size, the wall surfaces and the structural frame are welded to form a closed space, a plurality of connecting joints are arranged on the top of the structural frame, and the connecting joints are connected with the structural frame. The module cabin structure is spliced based on the connecting nodes, and at least one wall face and the structural frame are detachably installed. By means of the design of the structural frame with the standardized size and the detachable wall faces, the sealing structure and the connecting joints are combined, the problems that the transportation size is limited, the single capacity is insufficient, and the multi-cabin-body cooperation efficiency is low are solved, and the advantages of improving the sealing performance, enhancing the connecting stability and facilitating expansion and splicing are achieved.

A locker system having adjustable-sized lockers, the locker system comprising: a first movable partition disposed between a first wall and a second wall as an upstanding partition or between a third wall and a fourth wall as a shelf partition wherein the first wall, the second wall, the third wall, the fourth wall, and a fifth wall are configured to create an enclosed space and the first movable partition is disposed between two walls at a first position and the enclosed space is divided into a first compartment and a second compartment, each of the first compartment and the second compartment having an initial volume; a first door connected to one of the first wall, the second wall, the third wall, the fourth wall, and the fifth wall to enable access to the first compartment and a second door connected to one of the first wall, the second wall, the third wall, the fourth wall, and the fifth wall to enable access to the second compartment; a first locking mechanism corresponding to the first door and a second locking mechanism corresponding to the second door; and a controller in communication with the first locking mechanism, the second locking mechanism, or both to cause the first locking mechanism, the second locking mechanism, or both to be engaged / locked or disengaged / unlocked wherein the controller is also in communication with the first movable partition to cause the first movable partition to move from the first position to a second position.

The invention relates to the technical field of microbial culture, and provides a culture device for agricultural microbial agent production and a use method, the culture device comprises a culture box, and the top of the culture box is hermetically and detachably provided with a box cover. According to the device, the air pump is controlled by the controller to be started, so that the air pressure in the closed space is increased, the air passes through the non-woven fabric and the polymer microporous membrane, more tiny bubbles can be generated under the action of the polymer microporous membrane, a nutrient solution flows and is mixed, and the stirring effect on the nutrient solution is achieved; a nutrient solution in the incubator flows into the culture dish through the liquid discharge pipe, so that the stirring of the nutrient solution and the injection of the nutrient solution into the culture dish to be mixed with a microbial inoculum can be completed without using more structural components, the operation is simple, and the condition of pollution caused by improper cleaning is avoided; therefore, the subsequent microbial agent culture effect is improved.

The invention discloses a treatment device and method for lead electrolysis anode copper removal scum, and relates to the technical field of lead electrolysis anode copper removal scum treatment.The treatment device comprises a cylindrical shell, the outer wall of the cylindrical shell is fixedly sleeved with a pair of annular grooves, a plurality of evenly-distributed exhaust holes are formed in the annular grooves, and material blocking nets are installed in the exhaust holes; the pair of annular grooves are communicated through a gas collecting pipeline; by arranging the shell, a closed space is provided for scum treatment, harmful gas leakage is avoided, the effect that scum and decomposition liquid are fully mixed and reacted is promoted through cooperation of internal structural components of the shell, uniform dispersion and guiding of the scum are achieved by arranging the scum distributing mechanism, the distributing uniformity and continuity are guaranteed, and the service life of the scum is prolonged. And by arranging the scum treatment mechanism, the effects of efficiently decomposing, filtering and separating scum, promoting sufficient mixing of the scum and decomposition liquid, improving the decomposition efficiency, preventing material screening holes from being blocked and ensuring continuous proceeding of the filtering process are achieved.

The invention relates to the technical field of laser cutting equipment, and discloses galvanized coiled plate cutting equipment which comprises a mounting frame, a guide rail structure, a cutting structure, a conveying structure, an intercepting toothed plate, a slag removal fan and a discharging structure. The cutting structure comprises a cutting seat, a laser cutting head, a separated protective cover, the intercepting toothed plate, the slag removal fan and the discharging structure; the separated protective cover is formed by splicing a plurality of splicing covers. Each splicing cover comprises an outer cover plate, an inner air box, a limiting plate, a limiting spring and an air supply hose. When the device is used, high-pressure air is blown out of the inner air box to form a protective air curtain on the splicing cover, the annular air cover and the laser cutting head, and therefore the situation that slag splashes and is intercepted, and zinc steam adheres to the splicing cover, the annular air cover and the laser cutting head can be prevented; and air is forced to be discharged along the cutting seam by the closed space formed by the separation type protective cover, so that the blowing force of the airflow to the lower edge of the notch is enhanced, and the adhering slag can be forcibly stripped.

The invention discloses an intelligent noise reduction method and system based on a mine earphone, and the method comprises the following steps: S1, obtaining an original noise signal in a mine operation environment, and carrying out the preprocessing of the original noise signal; s2, designing an adaptive compensation mechanism according to the reflection characteristics of the closed space of the mine, calculating a sound wave propagation attenuation coefficient and reflection delay, constructing a roadway reverberation model, and generating advanced compensation sound waves; and S3, carrying out collaborative fusion on the advanced compensation sound wave and a main noise reduction signal to generate a composite noise reduction signal. The invention relates to the technical field of intelligent noise reduction. According to the intelligent noise reduction method and system based on the mine earphone, the noise level in a mine operation environment is effectively reduced, the communication efficiency and the working comfort of operators are improved, potential damage of noise to hearing of the operators is reduced, and therefore the overall safety and the production efficiency of mine operation are improved.

The invention discloses a visual three-dimensional test device for grouting reinforcement and effect of a mine boundary coal pillar under a thin unconsolidated formation, and relates to the technical field of similar test simulation equipment for grouting reinforcement of the mine coal pillar. The device comprises a test support, an internal frame, a model storage box, a loading plate assembly, a model cutting mechanism, a vertical loading mechanism, a horizontal loading mechanism, a signal acquisition and processing mechanism, a three-dimensional test model, a coal mining simulation mechanism, a model grouting mechanism, a model separation mechanism and an effect visualization mechanism. According to the coal seam mining simulation mechanism, step-by-step, segmented and controllable excavation of a three-dimensional similar model in a closed space can be achieved, generation, expansion and penetration of coal seam mining roof rock stratum cracks are inverted, and the evolution process of a water guide channel is finally formed. According to the invention, the diffusion and runout characteristics of the grouting reinforcement slurry for the boundary coal pillar of the mine under the thin unconsolidated formation can be truly simulated, and the dynamic process of diffusion, condensation and reinforcement of the coal pillar by the slurry in the water-guiding damage fracture can be reproduced.

The invention relates to the technical field of orchard planting, in particular to an orchard intelligent gas explosion deep scarification fertilizer applicator which comprises a supporting table used for supporting a device body, a protective frame is mounted at the top of the supporting table, and a gas pressure controller used for soil gas explosion deep scarification and an automatic driving control controller are mounted in the protective frame. By arranging the fertilizing mechanism, the device can sow seeds while loosening soil through gas explosion, the gas pressure of a gas storage tank is controlled through a gas pressure controller, when the seeds move into a through pipe from a feeding pipe, the seeds slide directionally due to the arrangement of a wedge-shaped surface, and the position of a gas outlet plate is adjusted through an electric push rod; the multiple sealing blocks form a closed space for the partition plate area, the multiple limiting blocks divide the seeds in the multiple through pipes in a limited mode, and the multiple air outlets correspond to the multiple feeding holes, so that air impact acting force is released to the seeds, the seeds can be released through the discharging holes, and meanwhile the loosening effect can be generated on internal soil.

The utility model provides a self-service safe collection device for secret-related carriers. The self-service safe collection device for the secret-related carriers comprises a feeding box and a collection cabinet which are fixedly connected, wherein the feeding box is used for non-contact code scanning registration and collection of the secret-related carriers, and the collection cabinet is used for storing or destroying the secret-related carriers. The feeding box comprises a box body, a code scanning operation module, a turning plate blanking module and a lifting screen module. A feeding hole is formed in the top of the box body; and a cavity which is sunken inwards is formed below the feeding opening. The code scanning operation module is installed at the opening of the box body, and the code scanning operation module and the box body form a closed space used for containing a secret-related carrier. A movable code scanning module is arranged in the code scanning operation module, and the code scanning module is controlled in a non-contact mode to scan a bar code on a secret-related carrier in the feeding box. And the turning plate blanking module is fixed at the bottom in the box body, and a collection cabinet inlet is formed below the turning plate blanking module. According to the utility model, self-service anti-cheating code scanning registration and collection work can be realized, a secret-related carrier is fundamentally prevented from being contacted by others in the collection process, and the risk that the secret-related carrier is fallen off and stolen after code scanning collection registration confirmation is avoided.

A vehicle structure comprising a portion including first and second members forming a closed space. The portion comprises first and second reinforcement members located in the closed space and attached to one another. First and second legs of the first reinforcement member are corrugated and comprise corrugations, wherein the corrugations comprise ridges and grooves. Each one of the first and second legs of the first reinforcement member has an outer surface. At the outer surface each one of one or more of the ridges of the first leg of the first reinforcement member has a recess at a first location. The first leg of the first reinforcement member has one or more inclinations in one or more directions transverse to the longitudinal direction so as to form the recess at the first location.

The invention provides an internal flow field balancing device for a magnetic transmission high-temperature and high-pressure closed container. Comprising a pulley, a transmission mechanism, a clutch, a turbulent flow mechanism, a frequency modulation motor and a magnetic transmission mechanism, a rotating cage is arranged on the pulley and is driven to rotate through a rotating mechanism; a tray is hung on the rotating cage, and an accommodating object is accommodated on the tray; the transmission mechanism is arranged at the closed end of the tank body; one end of the clutch is connected with the transmission mechanism; the turbulence mechanism is provided with a transmission shaft, blades and a driving gear are arranged at the extension end of the transmission shaft, the blades are used for adjusting airflow distribution in the tank body, and the driving gear is connected with the input end of the transmission mechanism and used for driving the transmission mechanism; the magnetic transmission mechanism is a non-contact coupling for transmitting torque through magnetic field force, is arranged in the middle of the outer side of the sealing head at the closed end of the tank body and transmits torque to the closed space of the tank body; the frequency modulation motor is connected with the magnetic transmission mechanism and used for driving the transmission shaft to rotate. Three flow field balancing modes are provided for use.

Provided is a food warming tray, which includes a warmer pad and a shielding bar. The warmer pad is configured to hold external tableware. Specifically, a groove is provided at the bottom of the warmer pad, and a heating wire is provided in the groove. The shielding bar is arranged at the outlet of the groove to seal the heating wire in the groove. The heating wire is bonded to the shielding bar and side walls of the groove by means of an adhesive. The food warming tray utilizes a combination of the groove and the shielding bar to seal the adhesive between the groove and the shielding bar, forming a closed space to prevent adhesive weathering from direct exposure. The shielding bar can work as an effective thermal insulation to prevent the heat of the heating wire from being transferred to the tabletop and thereby avoiding scorching.

The invention relates to the technical field of vibration sensors, and discloses a high-precision vibration spectrum sensor, which comprises a shell, a sealing cover is embedded in the shell, the top of the sealing cover is flush with the top of the shell, and the shell and the sealing cover form a closed space; and the sensor mechanism is arranged in an inner space defined by the shell and the sealing cover, the sensor mechanism comprises an insulating cylinder, the outer wall of the insulating cylinder is fixedly connected with a connecting block, the insulating cylinder is fixedly connected to the inner wall of the shell through the connecting block, and the interior of the insulating cylinder is fixedly connected with a first electrode plate and a second electrode plate. The sensor is excellent in detection performance and capable of accurately capturing vibration signals, the core component is made of high-quality materials, the spring wire is stable in elasticity and resistant to corrosion, the ball body responds to high-frequency vibration rapidly, the electrode plates reduce signal loss, vibration is converted into electric signals through equivalent capacitance changes, various curves can be generated, early fault features can be recognized in an assisted mode, and the detection accuracy is improved. And the detection accuracy and completeness are ensured.

The invention relates to the technical field of loading equipment, in particular to a fork arm type whole vehicle loading robot which comprises a supporting plate and a material support and further comprises a mounting frame movably mounted on the supporting plate. The lifting and lateral moving mechanism comprises a lifting assembly and a lateral moving assembly; the material conveying mechanism comprises a chain conveying assembly mounted on the mounting frame; the fork arm assembly comprises a first fork arm installed on the installation frame, a second fork arm is installed above the first fork arm in a sliding mode, and a fork arm pushing mechanism is arranged between the first fork arm and the second fork arm; and the radar control system is used for scanning the material support on the chain conveying assembly in real time to obtain data of the material support. The material tows are grouped by a plurality of tows and then are fed into the carriage at a time to be boxed and unloaded, automatic and intelligent loading is achieved, and the problems that a manual forklift is low in efficiency, and a forklift in a closed space cannot work are solved. Automation and intellectualization of whole vehicle loading are achieved, the loading efficiency is improved, the labor cost and the material damage risk are reduced, and the system adapts to the complex loading environment.

The invention belongs to the technical field of intelligent warehousing, and discloses an intelligent goods shelf capable of monitoring the load capacity of the goods shelf, the intelligent goods shelf comprises stand columns, shelf bodies, shelf plates, pressure sensors, a controller and the like; the shelf plates are horizontally arranged in a space defined by the stand columns, grooves are formed in the tops of the shelf plates, the shelves are embedded into the grooves, and the pressure sensors are arranged between the shelves and the shelf plates; clamping grooves are formed in the two sides of the shelf plates, sealing strips are arranged in the clamping grooves, and the controller is fixedly connected with the stand columns and connected with the pressure sensors through signal cables. According to the intelligent goods shelf, an embedded sealing bearing structure is adopted, and the pressure sensor is embedded in the closed space between the shelf and the shelf plate, so that the interference of dust on the pressure sensor is effectively avoided, and the measurement accuracy is improved; meanwhile, the design of clamping grooves formed in the two sides of the shelf plate and sealing strips arranged in the clamping grooves further enhances the sealing effect, and dust is prevented from entering and affecting the performance of the pressure sensor.

The invention provides a dustproof powder bag breaking and discharging platform, and belongs to the technical field of machining. Comprising a platform body, a self-adaptive bag breaking mechanism arranged above the platform body, a discharging channel located below the self-adaptive bag breaking mechanism, a two-stage negative pressure dustproof system arranged around the discharging channel, and an intelligent control system electrically connected with the self-adaptive bag breaking mechanism and the two-stage negative pressure dustproof system. Through the arrangement of the self-adaptive bag breaking mechanism, a closed space formed by a flexible sealing curtain, a two-stage negative pressure system, a primary annular suction cover, a secondary dust collection cover and a dust treatment unit, dust generated in the bag breaking and discharging process can be effectively blocked and collected, the dust filtering efficiency reaches 99.97%, overflow and diffusion of the dust are greatly reduced, and the service life of the bag breaking machine is prolonged. Through a bag type recognition sensor and a self-adaptive bag breaking mechanism, the height of a tool rest, the angle of a blade, the speed and the bag breaking pressure can be adjusted, and a specification adaptation assembly can be rapidly replaced.

According to the welding device for the photovoltaic power generation support, through operation of a feeding assembly, under driving of a feeding disc, workpieces start to rotate at a constant speed, so that the workpieces can be accurately transferred to a welding area according to a preset sequence, and therefore a set of efficient and smooth continuous feeding system is constructed; a solid foundation is laid for follow-up seamless continuous welding operation, along with dynamic changes of the feeding disc, the interlayer and the sealing cavity assembly are flexibly switched and closed to form a closed space, in the closed environment, the high-temperature flue gas recovery assembly filters flue gas generated in the welding process, and the high-temperature flue gas recovery assembly recovers the flue gas generated in the welding process. According to the welding device, the welding temperature is reduced to the maximum extent, pollution of smoke to the surrounding environment is reduced to the maximum extent, the workpiece can be preheated before welding by means of the synergistic effect of the workpiece preheating assembly, the workpiece can reach the temperature needed by welding more quickly and more evenly in the subsequent welding process, and therefore the welding quality and efficiency are remarkably improved.

A highly sealed invasive biosensing assembly and a biological information monitoring apparatus. The present invention relates to the technical field of biosensors. The highly sealed invasive biosensing assembly comprises a biosensor, and an electrode-protecting cover is snap-fitted to the lower part of the biosensor. A guide needle is snap-fitted into the biosensor, longitudinally penetrating the biosensor. The biosensor further comprises a sensing electrode and an electrode pressure plate. In a first state, the electrode pressure plate, the lower part of a needle guide seat, and the interior of the electrode-protecting cover form a first closed cavity. In a second state, the electrode-protecting cover is detached from the biosensor, so that at least part of the sensing electrode entering the first closed cavity and at least part of a needle body extend out of the first closed cavity. The invasive biosensing assembly and the biological information monitoring apparatus form a closed space inside the assembly and the apparatus by means of a snap structure and the positional relationship between components during assembly, thereby improving the hermeticity in the assembly and the apparatus, so that the assembly is in a sterile state before being implanted into a human body.

The utility model discloses a secret-involved carrier safety collection device, it includes feeding box, scanning code operation module, turning -on plate blanking module and elevating screen module. Feeding box is a front opening box, and the top of box is opened and is fed into the mouth. Scanning code operation module is installed at the opening of feeding box, and forms a closed space for accommodating secret-involved carrier with feeding box, and scanning code operation module is built -in and is used for scanning the scanning code module of the bar code on the secret-involved carrier that is accommodated in the closed space. Turning -on plate blanking module is fixed at the bottom of feeding box. Still be installed on feeding box one independent elevating screen module for man -machine interaction. The utility model can be realized in the closed space by collection device directly complete anti -fraud scanning code registration, collection work, fundamentally put an end to secret-involved carrier in the collection process is contacted by others, and the risk of evading secret-involved carrier scanning code collection registration confirmation is dropped, and secret-involved information is stolen.

The invention discloses a natural ventilation cooling tower and a dumbbell-shaped concrete filled steel tube cross strut thereof, the dumbbell-shaped concrete filled steel tube cross strut comprises four dumbbell-shaped steel tube limb columns and cross nodes, and the end parts of the dumbbell-shaped steel tube limb columns are connected with the cross nodes to form a cross structure; the cross joint comprises a vertical stiffening plate, an upper reinforcing ring, a lower reinforcing ring, a plurality of joint sleeves and a plurality of joint webs, the upper reinforcing ring and the lower reinforcing ring are perpendicularly crossed with the vertical stiffening plate, the joint webs are connected with the joint sleeves, and the joint sleeves, the joint webs, the upper reinforcing ring and the lower reinforcing ring form a dumbbell-shaped structure with the vertical stiffening plate as the central axis. Open holes are formed in the reinforcing rings and used for pouring and circulation of concrete, the four dumbbell-shaped steel pipe limb columns are arranged at the open holes of the upper reinforcing ring and the lower reinforcing ring, and a closed space is formed by the joint sleeve, the joint web, the upper reinforcing ring, the lower reinforcing ring and the four dumbbell-shaped steel pipe limb columns. The problem of material waste caused by rich in-plane directional bearing capacity of a circular section can be solved.

The invention discloses an internal inspection system and method for oil filling equipment, and the system comprises a non-oil-discharge butt joint device which is in sealed butt joint with a manhole door and forms a sealed channel for an inspection robot to go in and out, and the inspection robot which is in a fish-shaped streamline shape and is provided with a multi-mode sensor group, the data acquisition module is used for acquiring internal structure data when moving in oil in the oil filling equipment; the ground control terminal is arranged outside the oil charging equipment; and the signal transmission module is in communication connection with the ground control terminal, the inspection robot and the multi-mode sensor group so as to receive and process the structural data and send a control instruction to the inspection robot. Accurate sealing butt joint with the manhole door of the oil filling equipment is achieved through the adapter, the cabin door mechanism and the butt joint cabin, opening and closing of the cabin door can be stably controlled through the driving mechanism in the closed space, and insulation oil leakage and external environment interference are effectively blocked. A fish-shaped inspection robot is adopted to adapt to a narrow space and a complex structure in the oil filling equipment.

The invention discloses a quadruped robot space precise positioning method and system based on deep learning. The quadruped robot space precise positioning method specifically comprises the steps that S1, a laser radar data stream and an inertial measurement unit data stream are aligned to generate a synchronous sensing data sequence in a unified mode; s2, determining a mapping pose sequence through consistency evaluation of poses output by the offline point cloud registration algorithm pool; s3, performing parallel loopback detection to generate a unified loopback constraint set; s4, the mapping pose sequence, the loopback constraint set and the pre-integration constraint are written into the factor graph model to generate a three-dimensional point cloud reference map; s5, the local point cloud frame and the three-dimensional point cloud reference map are registered, and a map matching pose is output; s6, the map matching pose and the pre-integration result are written into a factor graph model to continuously solve and output a continuous-time six-degree-of-freedom pose result; and S7, outputting a six-degree-of-freedom pose result in continuous time. According to the invention, direction constraint consistency point cloud registration and dual-channel loopback optimization are introduced, and stable and high-precision positioning of the closed space is realized.

The invention discloses a dynamic fire extinguishing strategy generation method and system based on fire behavior development stage grading, belongs to the technical field of artificial intelligence, and aims to solve the problems of rapid fire behavior spreading and toxic and harmful flue gas retention in a fire disaster in a closed space of a multi-layer underground parking lot. The target tracking device firstly uses image identification to position a fire point, then uses the fire source detection device to collect a fire type and a fire behavior degree, and generates triple data; the data are input into a fire behavior stage grading model, and the fire behavior is divided into an incubation period, an accelerated spread period and a deflagration period according to a combustion entropy threshold value. According to the current stage, the corresponding fire extinguishing strategy is loaded from the blocking priority rule base, and in the detonation period, the aerogel flame retardant is only allowed to be put into the top ventilation opening in the fire diffusion direction. And then the fire scene control instruction drives the fire behavior blocking robot to release the flame retardant on time at a fixed point, and environment parameters after release are collected and fed back to the model. And if the combustion entropy value crosses the stage threshold value, the model triggers the blocking strategy to be dynamically switched.

The utility model relates to a sampling device, and discloses seabed sampling equipment which comprises a shell, a hose, a bearing middle frame, a sampling device, a waterproof sealing ring and a supporting device. The shell can comprise an upper pressure-resistant shell and a lower pressure-resistant shell, the upper pressure-resistant shell and the lower pressure-resistant shell form a containing space, and a pipeline hole is formed in the upper portion of the upper pressure-resistant shell. One end of the hose is connected with the pipeline hole, the other end of the hose is connected with the offshore equipment, and the hose is used for communicating the accommodating space with the offshore equipment, so that the seabed sampling equipment can obtain electrical supply of the offshore equipment. The bearing middle frame is fixed in the shell, the sampling device comprises an air compression pump, a sampler actuating cylinder, a sampler and a sampler plug, the sampler is fixedly connected with the sampler plug, the sampler plug is in sliding connection with the sampler actuating cylinder, an opening of the sampler actuating cylinder faces downwards, and the sampler plug and the sampler actuating cylinder form a closed space; the air compression pump is fixed on the bearing middle frame and is communicated with the closed space so as to push the sampler to be downwards inserted into the seabed.

The application discloses a device for reducing fluorine-containing gas pollutant emission in electroslag remelting and a use method, which comprises a flue gas recovery cover (1), a flue gas discharge pipeline (7) and a purification tank (10). The flue gas recovery cover (1) is respectively provided with a remelted slag discharging hole (2), a self-consuming mother electrode (6) passing hole and a flue gas discharge pipeline (7) mounting hole. The flue gas discharge pipeline (7) is arranged through the flue gas discharge pipeline (7) mounting hole, one end of the flue gas discharge pipeline (7) is located in a closed space formed by the flue gas recovery cover (1) and a crystallizer (5), and the other end is inserted into the purification tank (10). A fan (8) is arranged on the flue gas discharge pipeline (7). Through the device, the fluorine-containing flue gas is recovered, and the fluorine-containing flue gas is converted into calcium fluoride by using an alkali solution. The device can realize the cyclic and repeated use of part of the calcium fluoride, greatly reduces the concentration of fluorine-containing harmful gas in the air environment of an electroslag remelting operation site, and makes the concentration of the fluorine-containing harmful gas reduce from the original 5.6 mg / m 3 to 0.02 mg / m 3 .