10905 results about "Storage tank" patented technology

The invention provides a plant-network integrated intelligent linkage scheduling method and system based on real-time monitoring, and the method comprises the steps: collecting drainage data in a drainage pipe network, obtaining the working condition data of a sewage treatment plant, and obtaining meteorological early warning information; performing comprehensive analysis on the drainage data, the working condition data and the meteorological early warning information based on an intelligent algorithm model, and performing prediction to obtain an analysis result; the intelligent algorithm model is used for simulating the running state of the drainage pipe network and predicting the sewage amount, the water quality change and the mixed sewage overflow risk; and according to the analysis result, generating a dynamic linkage scheduling instruction for the storage tank, the intelligent catch basin and the sewage treatment plant. According to the invention, the running state of the drainage pipe network is accurately simulated through the intelligent algorithm model, the sewage amount, the water quality change and the mixed sewage overflow risk are predicted, then the dynamic linkage scheduling instruction for the regulation and storage tank, the intelligent catch basin and the sewage treatment plant is generated, and the situation that the environment is damaged by overflow is avoided.

The invention relates to the field of low-temperature liquefied gas storage equipment, and discloses a low-temperature liquefied gas film storage tank and an installation method thereof.The low-temperature liquefied gas film storage tank comprises an outer tank and a plurality of insulation box structures installed on the outer tank; the insulation box structure comprises a secondary insulation box, a secondary shielding layer, a main plywood and a main shielding layer which are arranged in sequence, and the corrugation position of the main shielding layer corresponds to the corrugation position of a corrugated plate in the secondary shielding layer; a gap is formed between every two adjacent insulation box structures, a secondary layer connecting plate is connected between every two adjacent secondary shielding layers, a main layer connecting plate is connected between every two adjacent main shielding layers, and the secondary layer connecting plates and the main layer connecting plates are located above the gaps. The gap between the adjacent insulation box structures can be effectively processed, and the integrity and the sealing performance of the shielding layer are improved.

The storage tank comprises a wall and an internal containing space defined by the wall, the wall comprises a first layer assembly and a second layer assembly which are arranged in a stacked mode, the first layer assembly is located on the inner side of the second layer assembly, the first layer assembly comprises a first shielding layer and a first heat insulation module located on the outer side of the first shielding layer, and the second layer assembly comprises a second shielding layer and a second heat insulation module located on the outer side of the second shielding layer. The second layer assembly comprises a second shielding layer directly connected with the first heat insulation module and a second heat insulation module located on the outer side of the second shielding layer, the first shielding layer and the second shielding layer are both made of metal corrugated plates, and the metal corrugated plates are provided with crisscrossed corrugations. According to the storage tank, an invar plate is not adopted, the overall production cost is reduced, the problem of difficult supply is solved, the two layers of corrugated metal plates have good tensile strength, pressure caused by contents and airflow to the wall can be compensated, and the storage tank can keep good performance for a long time.

The invention provides a heat storage heat pump system control method based on a physical information neural network, and belongs to the technical field of heat storage pump system intelligent control. Aiming at the problems that in the prior art, an algorithm is difficult to adapt to dynamic energy consumption requirements, engineering application of a model is difficult due to building space heterogeneity, high-order RC model prediction credibility is weak, engineering feasibility is poor and the like, a solution combining a physical information sequence to sequence neural network technology and a finite-state machine control strategy is provided. On the model level, a 2R2C resistance-capacitance RC model of building temperature change is established, and then a PI-Seq2seq prediction model is proposed based on the physical model. On the control flow optimization level, on the basis of an industrial and commercial time-of-use electricity price policy, an FSM control model is designed, a system state set is defined, parameters and a transfer function are input, and a control rule is constructed in combination with the working period of a building heat pump and the characteristics of a heat storage tank. And finally, energy consumption cost optimization and indoor temperature stabilization under the peak-valley electricity price are realized.

The invention relates to the technical field of sealing performance testing, in particular to a breather valve performance online testing method for oil and gas storage and transportation, which comprises the following steps: acquiring a vibration signal of a breather valve body, a multi-band acoustic signal of a valve port and a total pressure signal in a storage tank; performing multi-scale complex wavelet decomposition, and constructing a time frequency-energy correlation feature tensor; the total pressure signal and the time frequency-energy correlation characteristic tensor serve as a combined observation value and are input into a preset continuous Gaussian mixture hidden Markov model containing four hidden states of sealing, transient micro-leakage, continuous leakage and full-amount opening, and the posterior probability is calculated; and calculating to obtain a real-time leakage rate. According to the method, the opening pressure can be accurately determined, the real-time leakage rate can be quantitatively calculated after the leakage state is recognized, comprehensive and accurate quantitative online evaluation of core performance parameters of the breather valve is achieved, and the multi-source information fusion degree and the anti-interference capacity are improved.

The invention discloses an oil storage tank oil-water interface measurement system and method and a storage medium, and relates to the technical field of oil-water interface measurement, and the system comprises a data acquisition module, a data processing module, a decision support module and a data security module. According to the oil-water interface measuring system and method for the oil storage tank and the storage medium, a three-dimensional sensing network (distributed sensor network) is constructed by adopting a pressure sensor array and phased array ultrasonic scanning technology and combining dielectric property detection of a microwave dielectric constant sensor; the pressure, the dielectric constant, the liquid level and the vibration data in the tank body are obtained, basic data are provided for subsequent processing, the comprehensiveness of data obtaining can be improved through the sensing network, the pressure data are dynamically calibrated through Takagi-Sugeno fuzzy logic, the influence of temperature drift is effectively eliminated, and the accuracy of data obtaining is improved. The ultrasonic signals are subjected to feature enhancement through the generative adversarial network, and the emulsion layer boundary is accurately recognized.

The invention discloses an unmanned aerial vehicle infrared thermal imaging method and device for cold leakage detection of a low-temperature storage tank, and relates to the field of automatic inspection and detection of storage tanks, and the method comprises the steps: determining the inspection range and detection distance of an unmanned aerial vehicle based on geometric parameters, a cold leakage frequency region and environment parameters of a site; calculating the distance between the shooting points and the vertical coverage height of single-circle flight, further dividing flight elevation layering, and calculating the number of the shooting points of each circle of flight; establishing a three-dimensional model; collecting a visible light image and an infrared thermal imaging image of each shooting point; the method comprises the following steps: performing multi-dimensional correction and temperature image conversion on an acquired infrared thermal imaging image, performing image registration on a temperature image with a temperature scale and a visible light image, performing cold leakage area identification to obtain a cold leakage area, performing quantitative calculation to obtain three-dimensional positioning of a cold leakage position and a cold leakage area, and performing cold leakage area identification on the cold leakage area. And generating a visual detection result, a detection report and a maintenance suggestion. According to the invention, automatic detection and accurate analysis of the cold leakage area of the low-temperature storage tank can be realized.

The invention relates to a liquid air energy storage and terrestrial heat coordinated underground space air regulation and control system and method. Comprising a first-stage compressor, a second-stage compressor, a third-stage compressor, an expansion refrigerator, a first-stage compression heat exchanger, a second-stage compression heat exchanger, a third-stage compression heat exchanger, a cold box, a separator, a liquid air storage tank, a cryogenic pump, an evaporator, a cold storage circulating pump, a cold storage box, a compression heat exchange circulating pump, a compression heat storage box, a first heater, a second heater and a third heater. The system comprises a first air expander, a second air expander, a third air expander and a generator. The regeneration heater is used for guiding the compression heat generated by the compressor into the regeneration heater for regeneration and / or guiding the geothermal energy output by the geothermal energy output end into the regeneration heater for regeneration; the rotary wheel dehumidification device is used for performing cryogenic drying on the wet air; the fresh air processing unit is composed of a fresh air filter, a regeneration fan, a regeneration filter and an air supply fan.

The invention discloses an efficient purification method of rBHET, and belongs to the technical field of waste polyester recycling. A reaction raw material obtained after premixing of waste PET polyester raw material particles and a catalyst and ethylene glycol are jointly and continuously introduced into a depolymerization reactor, the reaction raw material and ethylene glycol in the depolymerization reactor are mixed and pass through a plurality of rotating discs, and the materials form a flowing film on the rotating discs rotating at a high speed to promote depolymerization; depolymerization reaction liquid generated in the depolymerization reactor enters a temporary storage tank to be stored after being subjected to impurity removal, the depolymerization reaction liquid in the storage tank is introduced into a rectifying tower to be primarily concentrated and purified, obtained concentrated liquid enters an evaporator to be secondarily concentrated and purified, obtained secondary concentrated liquid enters a cooler to be cooled and then enters a product tank to be crystallized; and drying the crystallized solid to obtain a high-purity rBHET product. According to the method, the production efficiency is improved, and the purity of rBHET is effectively improved.

The invention discloses a storage tank pressurization control method and system based on LNG gas station fuzzy self-adaptive PID control, and aims to solve the technical problems that a traditional pressurization control method of an LNG storage tank is low in control precision, poor in stability and rapid in equipment abrasion. According to the control method, dynamic compensation for the target pressure is introduced, so that the system can aim at a more accurate control target in the initial stage, the steady-state control deviation is reduced, and the control precision is improved. And static pressure head change disturbance caused by liquid level change is overcome through dynamic compensation, the adjusting burden of the controller is reduced, the controller can focus on processing other dynamic disturbance, and therefore the control process is more stable, and overshoot is smaller. Through the design of a dynamic compensation mechanism and a special fuzzy rule base, the system can automatically adapt to various complex working conditions, and fast, stable and overshoot-free pressure control is always kept. Therefore, frequent and large-amplitude action and surge phenomena of the valve are avoided, and the energy consumption of an executing mechanism is reduced.

The present application relates to a kind of plate type ballastless track bed expansion joint glue injection and leveling integrated system, including control system, glue pipeline system, mobile platform, glue injection execution system, wherein glue pipeline system is applied to the pressure of glue body storage tank, force glue liquid to be transported along pipeline to the end of glue injection execution system, glue injection execution system is by six-axis mechanical arm control unit according to expansion joint space coordinate planning six-axis mechanical arm path information and forms six-axis mechanical arm action instruction, realizes six-axis mechanical arm end injection head to expansion joint and carries out glue injection operation.The present application is by setting glue injection execution system and glue pipeline system on mobile platform, can guarantee according to the length direction of expansion joint and carry out glue injection and according to stable glue injection quantity realize the glue injection of expansion joint, reduce labor intensity, improve the glue injection quality of expansion joint.

A system and method for hydrogen storage, and delivery. The system includes a hydrogen storage tank, a first pump disposed within the hydrogen storage tank, and a second pump disposed outside of the hydrogen storage tank. The hydrogen storage tank is to store gaseous hydrogen and liquid hydrogen. The first pump is to pump out liquid hydrogen out of the storage tank, producing a low pressure flow. The second pump is to receive this low pressure flow and produces a high pressure flow of liquid hydrogen. The system can also include a thermal device disposed within the hydrogen storage tank to heat gaseous hydrogen when a pressure within the hydrogen storage tank drops below a predetermined minimum pressure. The system can also include a heat exchanger to receive the high pressure flow of liquid hydrogen from the second pump.

The utility model discloses an inerting and discharging combined safety protection device for a solid hydrogen storage tank, and belongs to the technical field of hydrogen storage and supply. The device comprises a solid hydrogen storage tank main body, a pressure and temperature sensing module, an inert gas injection system, a flameless relief device and a hydrogen treatment unit, the pressure and temperature sensing module monitors parameters in the tank in real time, when the parameters exceed a preset threshold value, the inert gas injection system injects inert gas from the lower portion of the tank body at constant pressure, the air pressure is stabilized through flow control, and meanwhile hydrogen is pumped out of an opening in the upper portion of the tank body to the processing unit; and a discharge port is formed in the side surface of the tank body and is linked with the flameless discharge device. According to the device, through the design of inerting inhibition and safe release, the potential safety hazard of overtemperature and overpressure in the solid hydrogen storage process is solved, the stability and safety of a hydrogen storage system are improved, and the device is convenient to operate and adapts to transformation of an existing solid hydrogen storage tank.

The invention discloses a simulation experiment device and method for casing drilling, and relates to an experiment device and method for simulating the smearing effect of casing drilling, and the device comprises a simulation assembly and a manifold assembly. The simulation assembly comprises an experiment kettle, a simulation piece and a casing pipe nipple, and an annular gap is defined between the simulation piece and the casing pipe nipple. The manifold assembly and the annular gap form a flow loop of drilling fluid. The manifold assembly comprises a liquid storage tank, a pump body and a material storage tank, and the pump body and the material storage tank are arranged between the liquid storage tank and the inlet end of the annular gap. Wherein the storage tank can enable the rock debris to enter the annular gap along with drilling fluid pumped by the pump body, and the simulation assembly can enable the casing pipe nipple to rotate at a preset rotating speed under a preset axial acting force under a preset experiment condition, so that the rock debris entering the annular gap forms a mud cake on the inner surface of the simulation piece. The experimental device can be used for analyzing influence factors of the smearing effect of casing drilling and guiding on-site construction of the casing drilling, so that the smearing effect of the casing drilling can play a more remarkable effect.

The invention discloses a flow velocity measurement system adopting bubble tracing, and the system comprises a circulation loop which is internally provided with a medium storage tank and a pump body; the air supply branch is connected into the circulation loop and provided with an air storage tank, and the air storage tank is used for supplying air to the circulation loop so that bubbles can be generated in the circulation loop; and the flow velocity measuring device is used for monitoring bubbles in the circulation loop. In conclusion, the flow velocity measurement device obtains the bubble motion information from the outside of the circulation loop, and a speed measurement device such as a sensor does not need to be inserted into the circulation loop, so that disturbance to a medium flow field in the circulation loop is avoided, the measurement is more real and reliable, and the accuracy is higher.

The invention discloses an in-tank convection prevention device and method. The in-tank convection prevention device comprises a storage tank body, a heat insulation module, a shielding corrugated plate, a bonding connecting strip and a convection blocking strip. According to the convection prevention method, the heat insulation module is firmly fixed by bonding the connecting strips, and a gas vertical flowing channel in a gap between the storage tank body and the heat insulation module is forcibly cut off by utilizing the transversely arranged convection blocking strips; according to the storage tank, a'thermosyphon 'closed circulation loop causing heat transfer is effectively damaged, continuous gas convection is avoided, and therefore structural damage or deformation of the storage tank body caused by local low-temperature impact is effectively prevented while the overall cold insulation performance is greatly improved and the cold loss is reduced.

The invention discloses a mortar material conveying and forming device which comprises a machining table, a conveying device is arranged on the machining table, a mold is arranged on the conveying device, a mold cavity is formed in the mold, a sprue gate matched with the mold cavity is formed in the top end of the mold, a storage tank is arranged on the machining table, and a discharging pipe matched with the sprue gate is arranged below the storage tank. Moving plates are arranged on the two sides of the machining table through adjusting assemblies, beating mechanisms are arranged on the moving plates, vacuumizing assemblies are further arranged on the moving plates, and vacuumizing pipes matched with the vacuumizing assemblies are arranged at the top ends of the molds. The mold adopts an openable structure and is integrated with the heating device, the mold cavity is preheated through the heating device in the cavity, the viscosity of a mortar material is effectively reduced, the fluidity of the mortar material is improved, and therefore the problem that in the prior art, the filling efficiency is low due to high mortar viscosity is solved; and the forming requirements of thin-wall, special-shaped and other complex cavity components are met, and meanwhile material hardening waste is avoided.

The invention provides a harbor district oil depot control system, belongs to the technical field of harbor district oil depot management and control, and particularly relates to a harbor district oil depot control system which comprises a multi-source data acquisition module, a data processing module, an index generation module, a production scheduling module, a safety management module, an equipment protection module and a control module. Universe data collection of the storage tank area and the loading and unloading area is achieved through the multi-source monitoring equipment, a scheduling, safety and equipment dynamic index system is formed in combination with the AI algorithm, and the data value density is improved; loading and unloading task allocation, four-level safety early warning and equipment health intervention measures are dynamically generated based on a threshold value, and automatic closed-loop management of'monitoring-analysis-execution 'is achieved; through a multi-stage early warning mechanism, full-process plan triggering from daily maintenance to emergency response is supported, and the accident prevention efficiency is improved; a three-dimensional visual billboard and a data cockpit are provided through the integrated management and control platform, cross-department collaborative decision making is achieved, and the emergency response speed is increased.

The invention discloses a raw material conveying device for polyaluminum chloride production and a working method. The raw material conveying device comprises a conveying pipe, a damping base, a storage tank, a fluidization anti-blocking module, a dust pumping system and a control unit. The upper portion of the conveying pipe is connected with hose discharging openings of a plurality of sets of storage tanks corresponding to the powder screening devices through star-shaped discharging valves. The bottom of the storage tank is mounted on a damping base, and a vibrator is fixedly mounted on the lower side of the storage tank; the storage tank is internally provided with a fluidization anti-blocking module which can fluidize materials through airflow so as to prevent blocking and caking; the dust suction system comprises a dust suction hood arranged at the top of a feeding pipe on the upper side of the storage tank, and the dust suction hood is connected with a cyclone separator capable of collecting dust generated in the feeding process and an induced draft fan through pipelines. The raw material conveying device for polyaluminum chloride production has the functions of effectively solving the problems of caking, blockage and dust caused by moisture absorption of materials and automatically adjusting conveying parameters according to material characteristics.

The invention relates to a port crude oil unloading speed regulation and control prediction method based on physical constraints, and belongs to the technical field of crude oil storage and transportation automation control, and the method comprises the following steps: S1, constructing a coupling equation of pipeline outlet pressure from an oil transfer arm to a reservoir area and storage tank flow speed; s2, constructing a physical constraint neural network model; s3, constructing a loss function formula of the physical constraint neural network model based on the coupling equation; and S4, performing adaptive training on the physical constraint neural network model based on historical data, and updating network parameters of the model. According to the method, the physical law of pipeline fluid movement is fused into the loss function in the form of constraint conditions in the model training stage, the degree of dependence of the model on the pure data sample size is remarkably reduced, and accurate regulation and control of the oil discharge rate under the complex working condition are achieved.

The invention relates to a molten salt tank and discloses a high-low position integrated molten salt tank which comprises a vertical molten salt storage tank and a low molten salt storage tank which are connected into a whole, the low molten salt storage tank is located on one side of the bottom of the vertical molten salt storage tank, and a molten salt inlet and a breathing opening are formed in the top of the vertical molten salt storage tank; a short shaft pump is mounted at the top of the low-position fused salt storage tank, and an outlet of the short shaft pump is connected with a fused salt conveying pipeline; and a communicating pipe is arranged between the top of the vertical molten salt storage tank and the top of the low-position molten salt storage tank. According to the molten salt tank, the short-shaft pump is used, the vibration problem caused by a long-shaft pump can be avoided, meanwhile, the lowest liquid level of molten salt can be lowered, the dead zone of the molten salt is reduced, the consumption of the molten salt is reduced, and the cost is saved; the molten salt is driven by gravity to flow, the complex and potential unreliable siphoning effect is replaced, system operation does not depend on precise control and external force any more, safety and reliability are achieved, and the situations that flow adjustment is difficult and siphoning fails due to the fact that a siphon pipeline changes along with the liquid level in a tank are avoided.

The invention relates to the technical field of material conveying, in particular to a material conveying and empty box recycling device and a feeding conveyor. According to the material conveying and empty box recycling device, when a transfer assembly moves to a first station, the transfer assembly can be in butt joint with the outlet side of a first conveying rail, so that a material storage box containing materials moves to the transfer assembly; after the materials in the storage box are taken out, the transfer assembly can move to the second station, so that the transfer assembly can be in butt joint with the inlet side of the second conveying rail; the outlet side of the second conveying rail extends into the feeding station, and a transfer trolley is arranged in the stacking station. The moving assembly can drive the grabbing piece to move between the feeding station and the stacking station in a reciprocating mode so as to grab the material storage boxes entering the feeding station and place and stack the material storage boxes on the transfer trolley in the stacking station. The device has the advantages of being high in automation degree, compact in structure, stable in operation and the like, material conveying and empty box separation and recovery can be reliably achieved, manual intervention is reduced, and the production efficiency is improved.

The invention discloses a film type liquid cargo containment system which comprises a plane insulation module, a corner insulation module and a nitrogen pipeline, the plane insulation module and the corner insulation module are fastened on the inner wall of a storage tank cabin, and each of the plane insulation module and the corner insulation module is composed of a main layer insulation module and a secondary layer insulation module. The main layer insulation module is fixed above the secondary layer insulation module to form step surfaces, a first bridging module, a second bridging module and a corner region bridging module are respectively mounted on the step surfaces at different positions, and nitrogen pipe mounting grooves are formed in the first bridging module, the second bridging module and the corner region bridging module through which a nitrogen pipeline passes; the arranged nitrogen pipe mounting grooves are connected to form a nitrogen arrangement pipeline; the invention further discloses a nitrogen pipeline mounting method. According to the thin film type liquid cargo containment system, the nitrogen pipelines are embedded in the bridging modules, so that the flatness of the upper surface of the main layer insulation structure of the containment system can be kept, and the thin film type liquid cargo containment system is adaptive to more types of corrugated plate structures.

A system, device and method to pick and / or place specimen containers may include a pick and / or place head, a first secondary reservoir, and optionally a second secondary reservoir which hold cryogenic fluid in a liquid form, above a main reservoir of cryogenic liquid, to cool the pick and / or place head and / or to cool or recharge the specimen containers during transfer operations. Storage locations may be arrayed in wedge-shaped sets spaced above cryogenic liquid of the main reservoir of a cryogenic storage tank at one or more levels, and pivotal about a central axis via a motor and control system. A gap (e.g., wedge shaped gap) between two successively angularly adjacent sets of storage locations of the sets of storage locations at an upper level provides access to the storage locations of the sets of storage locations at a lower level. Cryogenic liquid temperatures and levels in reservoirs are monitored.

The invention relates to the technical field of hydrogen energy preparation, in particular to hydrogen storage equipment for a hydrogen production and hydrogenation all-in-one machine, which comprises a machine body, a hydrogen production machine module and a hydrogen storage module, the hydrogen storage module is fixed in the machine body, and the hydrogen storage module is composed of a plurality of gas storage tanks; the hydrogenation module is arranged at the top of the hydrogen storage module, the hydrogenation module is a filling pump, and the inlet end of the hydrogenation module is connected with the hydrogen storage module; the dynamic design that a rotating frame carries a multi-fan-shaped filter screen body is adopted in a filtering air inlet assembly of the hydrogen production machine module, efficient anti-blocking and continuous air inlet in the catkin season are achieved in combination with a brush disc cleaning structure of a cleaning assembly, the rotating frame drives a vertical rod to rotate through a driving motor, the filter screen body is driven to do circular motion through bevel gear transmission, and the filter screen body does circular motion; and meanwhile, the transverse rotating rod drives the brush disc to brush and sweep the surface of the filter screen in real time, it is guaranteed that holes are smooth, the air pump assembly stably sucks sufficient air so that the whole filling and storing equipment can normally operate, water electrolysis hydrogen production can be continuously and efficiently conducted, and the supply amount of the hydrogen storage tank is guaranteed.

The invention discloses a liquid air energy storage system based on air separation, which is characterized by comprising an air purification unit, an energy storage unit, an air rectification unit and an LNG (Liquefied Natural Gas) cold supply unit, wherein the air purification unit comprises an air filter, an air compressor, a first cooler, an adsorber and a first heater, and the energy storage unit comprises a first liquid separation tank, a liquid air storage tank, a liquid air pump and an air expansion machine. The air rectification unit comprises a rectification tower, a main cold box, a second liquid separation tank, a second subcooler, a first heat exchanger, a liquid nitrogen storage tank, a liquid oxygen storage tank, a second heat exchanger, an argon rectification system and a liquid argon storage tank; and the LNG cold supply unit comprises a first nitrogen supercharger, a second nitrogen supercharger, an LNG cold box and a first subcooler. The system has the functions of air separation and electric energy storage at the same time, and cold energy of the LNG receiving station is fully utilized for air separation and energy storage to participate in construction of a novel power system of a power grid.

The invention relates to the technical field of aquaculture, in particular to a sewage discharging device for aquaculture and a water treatment system.The sewage discharging device for aquaculture comprises a culture pond body, a sludge discharging hopper, a sludge pump and a sewage storage pond, and a slope surface structure is arranged at the pond bottom of the culture pond body; the sludge discharging hopper is arranged at the bottom of the culture pond body, communicates with the output end of the bottom of the slope surface structure and is used for collecting solid pollutants sliding along the slope surface structure; the input end of the sludge pump is communicated with the sludge discharge hopper; the sewage storage tank is communicated with the output end of the sludge pump. The pollution discharge device for aquaculture provided by the invention can realize automatic convergence and centralized collection of solid pollutants, so that the collection efficiency is improved, and the cost is reduced.

The invention discloses a prawn culture batch feeder with an EM bacteria decomposition function, and relates to the technical field of batch feeders, the prawn culture batch feeder comprises a transverse track framework, and a walking trolley is mounted on the transverse track framework; a feed storage tank for storing feed is mounted on the walking trolley; a screw feeder is arranged on one side of the storage tank; the tail end of the screw feeder is connected with the feed feeding mechanism; the feed feeding mechanism comprises a feeding front cover and a rear cover, and a screening cylinder is mounted in the rear cover; a block breaking assembly is installed in the screening barrel in a matched mode. According to the feed crushing device, the block crushing assembly also rotates, hardened feed can be crushed while the block crushing assembly rotates, the feed which is not crushed can be stirred into the auger roller, then the auger roller is used for conveying the feed back into the storage tank, and therefore circulating feeding of the feed can be formed, and repeated crushing of the hardened feed is facilitated; the granular feed falls into the front feeding cover and the rear feeding cover again through the screening cylinder and is discharged through the feeding pipe at the bottom of the rear feeding cover, and therefore feeding of the feed is achieved.

The invention discloses a marine storage tank emergency cut-off valve intelligent fault prediction method based on edge calculation, and relates to the technical field of industrial equipment intelligent operation and maintenance. Comprising the following steps: S1, determining a feature vector: synchronously acquiring multi-modal data through a multi-source sensor array, and performing signal processing on the multi-modal data to obtain a corresponding feature vector; s2, constructing a diagnosis model: constructing a sample data set according to the feature vector, and constructing a hybrid diagnosis model according to the sample data set; and S3: model processing: taking the multi-modal data as the input of a final CNN-LSTM hybrid network model, outputting to obtain a corresponding confidence coefficient, and determining a corresponding early warning mechanism according to the confidence coefficient. According to the method, the false alarm rate and the missing report rate can be reduced, and early-stage accurate recognition of potential faults such as abrasion and jamming is achieved.

The present application provides a corrugated plate of a liquefied gas storage tank and a liquefied gas storage tank. The corrugated plate comprises a corrugated plate body; a transverse corrugation formed on the corrugated plate body; a longitudinal corrugation formed on the corrugated plate body and comprising a first longitudinal corrugation and a second longitudinal corrugation respectively located on two opposite sides of the transverse corrugation; reinforcing ribs respectively formed on the transverse corrugation, the first longitudinal corrugation, and the second longitudinal corrugation; and an intersection portion formed at the intersection of the transverse corrugation, the first longitudinal corrugation, and the second longitudinal corrugation. The corrugated plate of the present application has high overall strength and stability. In addition, the reinforcing ribs formed on the corrugations increase the surface area of the corrugated plate in contact with liquefied gas and increase the local cross-sectional area of the corrugations, thereby further enhancing the strength and rigidity of the corrugations and the corrugated plate.