1516results about How to "Extend the life cycle" patented technology

The invention discloses a tool wear monitoring and repairing method based on artificial intelligence. The method comprises the following steps that a terminal layer collects original machining data and uploads the original machining data to a cloud computing layer; the cloud computing layer trains a power increment diagnosis model; the terminal layer collects processing data in the processing process in real time as monitoring data; the cloud computing layer selects a deep learning algorithm or a transfer learning algorithm to train a final processing precision fault diagnosis model; constructing an edge calculation distribution optimization algorithm and performing task scheduling; and based on the machining precision fault diagnosis result, a laser surface strengthening path is constructed, and the abraded tool is repaired through laser surface strengthening treatment. The numerical control machining process can be diagnosed in real time based on the transfer learning mechanism, the laser surface strengthening path is planned based on the diagnosis result, the laser surface strengthening operation is guided in real time, the abnormal state of the tool is repaired in time through the laser surface strengthening technology, and the machining precision is ensured.

The invention relates to a plate laser cutting platform and a laser cutting process, and relates to the technical field of laser cutting equipment.The plate laser cutting platform comprises a workbench and a laser cutting head arranged on the workbench, and the laser cutting head comprises a laser generator and a nozzle coaxially arranged at the bottom of the laser generator; a moving assembly for driving the laser cutting head to move in the X direction, the Y direction and the Z direction and a fixing assembly for fixing the special-shaped workpiece are arranged on the workbench, the laser cutting head is arranged towards the workbench, the laser cutting head is coaxially sleeved with a mounting cylinder, and four sets of baffles are rotationally arranged at the bottom of the mounting cylinder; the four groups of baffles are uniformly distributed at intervals along the circumference direction of the mounting cylinder, the four groups of baffles are in one-to-one correspondence with four side plates of the special-shaped workpiece, and gaps for metal chips generated by cutting to sputter outwards are reserved between the bottom sides of the baffles and the special-shaped workpiece. The special-shaped workpiece cutting device has the effects of being beneficial to cutting special-shaped workpieces, prolonging the service life of the nozzle and improving the cutting quality.

The utility model relates to an aerosol generating device and an atomizer, the aerosol generating device comprises the atomizer, the atomizer comprises an atomization assembly and a first shell, the first shell is internally provided with a first liquid storage cavity used for storing a liquid matrix, and the atomization assembly is in fluid communication with the first liquid storage cavity and used for atomizing the liquid matrix to generate aerosol; the container comprises a second shell, a second liquid storage cavity used for storing the liquid matrix is formed in the second shell, the second shell is independent of the first shell, the container is constructed to be capable of being connected with the atomizer in a combined mode, and a liquid path allowing liquid to flow is established between the second liquid storage cavity and the first liquid storage cavity; therefore, the liquid matrix in the second liquid storage cavity can be transferred to the first liquid storage cavity; the power supply assembly is used for providing power for the atomization assembly to atomize the liquid matrix; wherein the atomizer is detachably and electrically connected with the power supply assembly, and when the atomizer is connected with the power supply assembly, a power supply path is established between the atomization assembly and the power supply assembly.

The invention relates to the technical field of photovoltaic modules, in particular to a photovoltaic module control method and device. The method comprises the following steps: obtaining an installation position according to design data of the photovoltaic module, carrying out illumination intensity change measurement, and further evaluating the luminous flux change of the photovoltaic module; on the basis of the luminous flux change data, calculating the generating capacity fluctuation of the photovoltaic module, further performing power quality attenuation evaluation, and extracting power grid transmission voltage fluctuation data; according to the power grid voltage fluctuation and power quality attenuation data, the battery overcharge condition and the battery life attenuation are evaluated, the battery capacity attenuation is further calculated, and the photovoltaic module system efficiency attenuation is evaluated; by analyzing system efficiency attenuation data, photovoltaic module degradation risk early warning is carried out, and risk early warning information is fed back to the terminal in real time; according to the invention, through early warning of power generation of the photovoltaic module, the deterioration prediction of the photovoltaic module is more accurate.

The invention relates to the technical field of fuel cells, and discloses a vehicle hybrid power system and an energy management method thereof, a medium and a vehicle, the vehicle hybrid power system is composed of a fuel cell and a power cell, the fuel cell and the power cell simultaneously generate electric energy to drive a motor, and the power cell plays a role in supplementing and recycling the electric energy. According to the method, the fuel cell works in a high-efficiency interval and a long-life interval as much as possible, multi-target optimization is performed on the efficiency and the life of the fuel cell based on a multi-target particle swarm optimization algorithm, and the fuel cell works at a high-efficiency and long-life comprehensive optimization working point.

The invention relates to the technical field of photovoltaic energy storage methods, and discloses a method for optimizing hybrid photovoltaic energy storage based on a Perturbobserve algorithm, which comprises a load, a photovoltaic power generation subsystem, an energy storage subsystem, a control and management system and a grid-connected system. The specific control method comprises the following steps: S1, obtaining an illumination intensity value within one day through a meteorological station, and obtaining a power grid net load value within one day through a voltage sensor and a current sensor; s2, taking economy optimization as a target, considering photovoltaic energy storage capacity constraints, and establishing an energy storage SOC control strategy target function; and S3, solving is carried out by using a PerturBobserve algorithm, and an optimal control pulse sequence is obtained. By optimizing the charging and discharging time and intensity of the energy storage battery, the consumption rate of photovoltaic power generation is maximized, the light abandoning phenomenon is reduced, and the energy loss in the charging and discharging process is reduced. Meanwhile, the PertuBobserve algorithm can avoid the excessive charging and discharging of the energy storage battery while considering the system load, prolongs the service life of the battery, and solves the problem of insufficient management of the service life of the battery in a traditional method.

The invention discloses a cleaning method, a cleaning system and application of a precision filter. The cleaning method comprises the following steps: roughly cleaning the emptied precision filter by adopting an organic solvent; washing the roughly washed precision filter with water to elute the organic solvent; after washing, draining washing water in the precision filter to enable the precision filter to be filled with water, and heating to perform deep hydrolysis treatment on gel impurities attached in the precision filter; after the deep hydrolysis treatment is completed, completely discharging decomposition liquid in the precision filter; and washing with water and drying to complete cleaning of the precision filter. According to the cleaning method, deep decomposition treatment is conducted with water to replace an existing alkali washing procedure, efficient decomposition of GPAN can be achieved, the cleaning effect is good, the solid waste generation amount is small, and corrosivity is small. The invention further improves the process of deep decomposition treatment with water, provides a backflow self-circulation deep decomposition treatment process and a forced circulation deep decomposition treatment process, and further improves the cleaning effect.

The invention discloses a hepatobiliary drainage device for the medical general surgery department, and relates to the field of the medical general surgery department, the outer side of the end of a hepatobiliary drainage tube body is in threaded connection with an external threaded butt joint piece, and the inner side of the hepatobiliary drainage tube body is in butt joint with an internal reserved insertion pipeline in a penetrating mode; a reserved transverse containing groove is formed in the inner side of the liver and gall drainage tube body, a nesting attaching piece is mounted on the inner side of the reserved transverse containing groove in a nesting mode, and the position of the outer side of the nesting attaching piece corresponds to the inner side of the external threaded butt joint piece. According to the medical hepatobiliary drainage device for the general surgery department, the expanded second built-in butt-joint liquid bag and the in-vivo entering position of a patient are subjected to auxiliary attaching and positioning treatment, the undesirable phenomena such as position deviation in the drainage operation process are avoided, the wound can be filled with the second built-in butt-joint liquid bag in the attaching state, and the hepatobiliary drainage device is convenient to use. Excessive blood outflow at the position is avoided, and infection caused by excessive contact between the interior of the wound and air is avoided.

The invention belongs to the technical field of electronic cigarette heating, and particularly relates to an electronic cigarette heating temperature control system and a control method thereof, comprising the electronic cigarette heating temperature control system and the control method thereof, the electronic cigarette heating temperature control system comprises heating temperature control hardware and heating temperature control software, the heating temperature control hardware comprises a heating wire, a sensor, a controller, a display screen and a power supply module, and the heating temperature control software comprises an environment sensing mechanism, a real-time monitoring adjustment mechanism, a temperature feedback mechanism, an energy consumption optimization mechanism and a safety protection mechanism. According to the electronic cigarette heating temperature control system and the control method thereof, the energy consumption of the electronic cigarette is optimized through an energy consumption optimization mechanism, so that the battery energy consumption of the electronic cigarette is greatly reduced, the electronic cigarette can be used for a longer time, and the use duration of the electronic cigarette is prolonged.

The invention provides an Internet of Things cooperative routing method based on multi-agent deep reinforcement learning. The method comprises the following steps: constructing a wireless sensor network model; constructing an energy consumption model; establishing an optimization problem of network routing according to the constructed wireless sensor network model and the energy consumption model; modeling the optimization problem into a multi-agent reinforcement learning problem, and selecting an optimal routing path according to the multi-agent reinforcement learning problem; wherein in the multi-agent reinforcement learning problem, each sensor node is regarded as an independent agent, and each agent learns a strategy for optimizing the overall network performance according to a local state and a reward mechanism. According to the invention, the energy utilization efficiency of the routing protocol is improved, routing with balanced energy is realized, and the network life cycle is effectively prolonged.

The present invention discloses a regeneration process for extending the service life of a salt water refined ceramic membrane system, and relates to the technical field of inorganic ceramic membrane regeneration process; in order to facilitate and quickly process the ceramic membrane; specifically includes three inorganic ceramic membrane filters, a salt tank, a recoil mechanism and a hydrochloric acid recovery box, the inorganic ceramic membrane filter includes a filter housing, an inorganic ceramic membrane, a permeation side housing is provided in the filter housing, the inorganic ceramic membrane is located in the permeation side housing, and the inorganic ceramic membrane and the permeation side housing constitute a permeation side, the filter housing top and bottom are both equipped with sealing covers, three inorganic ceramic membrane filters are respectively connected to a series structure through a series pipeline, and the input end of the inorganic ceramic membrane filter at one end is connected to a water inlet pipe. The present invention can recycle the inorganic ceramic membrane, extend its service life and service life, and can extend its use by 1-2 years even in the worst salt quality, with obvious effect, convenient and reliable operation.

The invention discloses a plate heat exchanger, which belongs to the field of heat exchange, and comprises a plate body I, a plurality of guide columns fixedly connected to one side of the plate body I, a plate body II movably sleeved outside the guide columns, and a heat exchange sheet positioned between the plate body I and the plate body II, the vertical installation assembly comprises a supporting column fixedly connected to one side of the first plate body, a rotating base rotationally connected to the outer portion of the supporting column in a sleeving mode, two lower side plates symmetrically and fixedly connected to the upper end of the rotating base, two upper side plates fixedly connected to the upper ends of the two lower side plates correspondingly, and guide parts fixedly connected to one sides of the two upper side plates and one sides of the two lower side plates. The heat exchange plate can be vertically inserted between the two upper side plates and the two lower side plates, the process of bending installation of the heat exchange plate is avoided, the mechanical stress effect on the heat exchange plate is remarkably reduced, damage such as deformation, scratches and creases possibly caused in the installation process is reduced, the structural integrity of the heat exchange plate is improved, and the service life of the heat exchange plate is prolonged.

The invention discloses a waste gas treatment device for new energy industrial automobile production, and particularly relates to the technical field of waste gas treatment.The waste gas treatment device comprises a treatment box, a double-cylinder reverse filtering set is arranged on the lower side of the interior of the treatment box, the bottom end of the treatment box is fixedly connected with a gas suction pipe, and a bidirectional spraying assembly is arranged on the upper side of the double-cylinder reverse filtering set; a self-circulation assembly is arranged on the upper side of the bidirectional spraying assembly, and an air injection assembly is arranged on the upper side of the self-circulation assembly. According to the invention, double cylinders in the double-cylinder reverse filtering group rotate reversely to intercept waste gas in a layered manner and disturb airflow at the same time for preliminary filtering, and then a vertical three-dimensional spraying field is formed through cooperation of the bidirectional spraying assembly and the self-circulation assembly, and a filtering layer in the self-circulation assembly is cleaned; and finally, the adsorption and interception efficiency of small particles is improved through shaking of the air injection assembly, self-cleaning is achieved, and the treated automobile paint spraying waste gas can reach the standard to be discharged.

The invention relates to a polyester fiber with a phase change temperature regulation function and a preparation method thereof, and belongs to the technical field of textile materials. The polyester fiber with the phase change temperature regulation function comprises a skin layer unit and a core layer unit, the skin layer unit adopts a polyester fiber base material, the core layer unit adopts lauric acid, a cavity is formed in the polyester fiber base material, and the lauric acid is packaged in the cavity of the polyester fiber base material. The polyester fiber with the phase change temperature adjusting function can be prepared, the preparation method is simple, and the polyester fiber can be well applied to textiles such as outdoor work clothes, sportswear and home textile bedding.

The invention relates to the field of micro-control units, and discloses an MCU remote real-time debugging method which comprises the following steps: S1, initializing an API management module on an MCU, and loading an API function for reading a plurality of memory addresses; s2, designing and implementing a communication protocol for transmitting a variable address needing to be checked and a corresponding variable value in real time; s3, the external equipment analyzes a map file generated after compiling, and extracts variable names and corresponding memory address mapping; s4, receiving a variable address sent by external equipment in real time through a communication protocol, and reading a corresponding variable value from the MCU memory by using an API function according to the received variable address; s5, implementing intelligent filtering based on the change frequency, the change amplitude and the historical importance of the variable; and S6, when the variable meets a preset triggering condition, automatically executing a response operation. The invention provides an efficient, safe and intelligent MCU remote real-time debugging method, and the debugging efficiency and reliability of the system are improved.

The invention provides a flat gate valve which comprises a gate valve body, a valve cavity is formed in the gate valve body, and valve holes communicating with the valve cavity are formed in the two sides of the gate valve body; the two gate plates are arranged in the valve cavity at intervals; the opening and closing mechanism is connected with the two flashboards; the lifting driving mechanism is connected to the top of the gate valve body, the lifting driving mechanism is connected with the opening and closing mechanism, and the two gate plates can be opened at the positions of the valve holes and block the two valve holes correspondingly when the lifting driving mechanism drives the opening and closing mechanism to descend. The two gate plates can be folded at the positions of the valve holes and are far away from the two valve holes respectively when the lifting driving mechanism drives the opening and folding mechanism to rise. Through the design of the flat gate valve, the weight of the whole machine is reduced, meanwhile, abrasion of the first sealing ring is reduced, and the service life of the first sealing ring is prolonged.

The invention relates to the technical field of foam drainage agents, and particularly discloses a salt-resistant foam drainage agent for natural gas exploitation and a preparation method of the salt-resistant foam drainage agent. The preparation method of the salt-resistant foam drainage agent for natural gas exploitation comprises the following steps: (1) dissolving modified amine oxide, mixing with silicon dioxide hollow spheres, carrying out reduced pressure treatment for 0.5-1 hour, and standing at normal pressure to obtain a mixture marked as M; and (2) crushing glass fibers, dispersing with chloroform, mixing with No.58 paraffin, treating at 75-80 DEG C for 10-30 minutes, adding a mixed cross-linking agent, stirring for 2-2.5 hours, keeping the temperature at 60-65 DEG C to obtain a film sealing solution, filtering M to take a precipitate, mixing with the film sealing solution, standing for 0.5-1 hour, filtering again to take a precipitate, and cooling to obtain the salt-resistant foam drainage agent for natural gas exploitation. The salt-resistant foam drainage agent for natural gas exploitation has the advantages of good foaming effect and long acting time.

The invention discloses a system and a method for separating ammonia, ethanolamine and water, which belong to the technical field of ammonia still separation, and are characterized in that a shell-and-tube heater is arranged in a flash tank, a reactor a and a reactor b are respectively arranged on two sides of the flash tank, the reactor a is communicated with the flash tank through a pipeline a, the reactor b is communicated with the flash tank through a pipeline b, and the reactor b is communicated with the flash tank through a pipeline b. The problems that separation is difficult, the separation cost is high and the operation period is short are solved, the problems that an existing plate tower is low in separation efficiency and high in energy consumption, silk screen filler is prone to corrosion and the operation period is short are solved, and the device is mainly applied to separation of ammonia, ethanolamine and water.

The invention discloses a method for comparing and selecting road base programs in seasonal frozen soil areas, comprising the following steps: step 1: analyzing the special geographical environment of seasonal frozen soil areas, clarifying the evaluation object system of the program, and listing the influencing factors of the research object; step 2: analyzing the manifestation of the influencing factors at all levels, describing the influence mechanism of the manifestation of the influencing factors on the research object, determining the evaluation index system, and constructing a pre-analysis framework for comprehensive evaluation; step 3: based on a data evaluation model, unifying the original observation point data of the evaluation index, obtaining a forward matrix and performing normalization processing to eliminate the influence of the dimensions of the indicators at all levels, and determining the analysis data matrix; step 4: calculating the distance between each evaluation object and the optimal program and the worst program, and using this as the basis for evaluating the pros and cons; step 5: sorting the distance between the evaluation object and the optimal solution and the worst solution, judging the relative closeness of each evaluation object to the optimal program, and realizing the optimal comparison and selection of the program.

The invention relates to the field of coal gasification chilled water, in particular to a coal gasification chilled water filtering system which comprises at least two filter bodies connected into a coal gasification chilled water system and arranged in parallel, and each filter body comprises a shell, a V-shaped sieve plate, a sieve plate flushing assembly and a shell flushing assembly. According to the coal gasification chilled water filtering system, on-line automatic dual cleaning of the filter body can be achieved, under the condition that normal operation of the filtering system is not affected, high-pressure grey water of a coal gasification grey water system is used for cleaning the sieve plate from the upper portion through the top flushing spray head, the inner wall of the shell is flushed through the combination of the side flushing pipe, and the filtering effect is good. The flushing effect of the filter body is improved, the service life of the filter body is prolonged, recycling of the filter body is achieved, the problems that at present, ash blocks the filter, chilled water supply is insufficient, and a gasification furnace cannot operate for a long period are solved, the working intensity of workers is reduced, and the production investment cost is saved.

The invention discloses an anti-condensation electric power ring main unit based on optical radiation heating, and relates to the technical field of ring main units, and the anti-condensation electric power ring main unit comprises a composite mechanism. According to the anti-condensation power ring main unit based on optical radiation heating, through the design of a composite mechanism, the composite shell is used for storing and placing electronic elements, in the daily operation process of the electronic elements, the temperature in the composite shell rises, the temperature difference between the interior and the exterior of the equipment is large, and condensation occurs in the equipment; the heater adopts optical radiation heating to prevent condensation, mainly converts optical radiation energy into heat energy, increases the temperature of an object or a space, and enables the temperature of the surface of the object to be higher than the dew point temperature, so that water vapor is prevented from being condensed into dewdrops on the surface of the object, the water vapor is absorbed through the moisture-proof mechanism, and the interior of the equipment is kept dry. And the ventilation mechanism is used for ventilating the interior of the composite shell, so that the temperature difference between the interior and the exterior is reduced, the probability of condensation is reduced, and the equipment is protected to a certain extent.

The invention relates to the technical field of rice processing, in particular to impurity removal equipment for rice production and processing, which comprises a straight channel, a bent pipe and the like, the left side of the straight channel communicates with a bent pipe. Rice is dispersed through the two adjacent first baffles and the two adjacent second baffles, the conveying pressure of the rice stacked in the straight channel is reduced, and the situation that due to the influence of the gravity of the rice, the rice is completely stacked at the bottom of the inner side of the straight channel to be conveyed, and blockage is caused is avoided; the first baffle and the second baffle drive rice to rotate while conveying, the rice is prevented from only making contact with the bottom of the inner side of the straightway, loss of the bottom of the inner side of the straightway is reduced, and the service life of equipment is prolonged. The length of each first baffle is larger than that of each second baffle, so that the conveying distance between every two adjacent first baffles is longer, the conveying distance between every two adjacent second baffles is shorter, the initial gushing position of the rice is changed, the phenomenon that the rice collides with each other after gushing at the same time is avoided, and the integrity of the rice after conveying is guaranteed.

The invention discloses a preparation method of a wide-temperature-range multistage phase-change temperature-adjusting asphalt mixture. The preparation method comprises the following steps: respectively preparing a plurality of different composite organic eutectic phase-change materials; a plurality of different composite organic eutectic phase-change materials are compounded according to different proportions to obtain the wide-temperature-range multistage phase-change material. The wide-temperature-range multi-stage phase-change material is doped into an asphalt mixture according to the mass ratio of 3%-5%, and the wide-temperature-range multi-stage phase-change temperature-adjusting asphalt mixture is formed. The wide-temperature-range multi-stage phase-change temperature-adjusting asphalt mixture disclosed by the invention can continuously play a phase-change heat storage function in a high-temperature environment in summer, and achieves the effects of delaying the pavement temperature change rate, reducing the pavement maximum temperature, delaying the daily maximum appearance time, reducing the pavement surface temperature and improving the pavement temperature. Therefore, the urban heat island effect can be relieved, and the pavement durability is prolonged.

The invention provides a low-molecular-weight polymeric extractant and a method for treating acidic wastewater containing copper and nickel through the low-molecular-weight polymeric extractant, and belongs to the field of wastewater purification. A polymeric molecular skeleton of the extractant is low-molecular-weight polymeric isosorbide terephthalate, and the molecular skeleton structure, the functional group type and the distribution of functional sites are regulated and controlled, so that the extraction efficiency is improved. And through the synergistic effect of a space-specific molecular skeleton and chelating extraction functionalized functional groups, the effect of selectively chelating metal ions with specific sizes is achieved, and targeted trapping of target metal is achieved. The low-molecular-weight polymeric extractant expands the variety of extractants, and provides a new solution for enrichment and purification of heavy metals in wastewater. Meanwhile, the extraction agent has good service cycle and regeneration capacity, and the molecular skeleton of the extraction agent is a low-molecular-weight polymer, so that a polymeric compound is very difficult to enter a water phase through transfer between phase interfaces, and the problem of secondary pollution caused by the fact that a traditional extraction agent is possibly dissolved in the water phase is effectively avoided.

The utility model provides a flow-adjustable water distribution device, belongs to the technical field of heating, ventilation and air conditioning, and aims to solve the problems that a large amount of scale can be generated to block spray holes in a water distribution pipe after the conventional water distribution device is used for a long time, and the flow can be controlled according to an actual use environment once the water distribution device is mounted inconveniently. Comprising a water distributor main body, the rotating base is rotationally connected to the bottom of the water distributor main body; the flow adjusting seat is rotationally connected to the bottom of the rotating base; at least four groups of water distribution branch pipes are arranged, and the four groups of water distribution branch pipes are circumferentially and uniformly distributed around the water distributor main body; a plurality of groups of transmission blocks are arranged, and the plurality of groups of transmission blocks are arranged below each group of water distribution branch pipes; the cleaning anti-blocking assembly is arranged below the water distribution branch pipe; and the flow adjusting assembly is arranged below the rotating base. The utility model has the advantages of quick adjustment, convenience in cleaning, blockage prevention and the like.

The invention relates to a two-agent type copper acid etching solution for a liquid crystal panel as well as a preparation method and application of the two-agent type copper acid etching solution. The etching liquid comprises an etching liquid main agent and an etching liquid auxiliary agent, and the etching liquid main agent comprises the following components in parts by weight: 5-20 parts of hydrogen peroxide; 5-15 parts of an acidic material; 3-10 parts of an organic base; 0.01 to 0.1 part of a corrosion inhibitor; 0.01 to 0.08 part of a chelating agent; 0.3-2 parts of a stabilizer; 60 to 80 parts of deionized water; the etching liquid auxiliary agent comprises the following components: 30-45 parts of an acidic material; 30 to 50 parts of organic base; 0.02 to 0.2 part of a corrosion inhibitor; 0.3-2 parts of a stabilizer; and 40 to 60 parts of deionized water. The chelating agent in the etching solution has double effects of corrosion inhibition and chelation, the pH value of the main agent can be adjusted, the etching environment of the etching solution is stabilized, the service cycle of the main agent in the etching process is prolonged, the etching capability of the two-agent type etching solution can be kept consistent after 48 hours, and the pH value and the hydrogen peroxide content are kept stable.

The invention discloses an intelligent monitoring system for predicting the service life of a high-power LED lamp bead, and relates to the technical field of intelligent monitoring, and the system comprises a data collection module for collecting the real-time current density distribution data of the high-power LED lamp bead in a working state, and a calculation module for calculating the real-time current density distribution data of the high-power LED lamp bead in a working state. The calculation module is used for calculating the hot spot position and the hot spot temperature of the lamp bead based on the current density distribution data, the analysis module is used for analyzing the influence degree of the hot spot position and the hot spot temperature on the brightness attenuation of the lamp bead, and the driving regulation and control module is used for adjusting the driving current of the lamp bead according to the influence degree, optimizing the brightness and prolonging the service life of the lamp bead; according to the intelligent monitoring system for predicting the service life of the high-power LED lamp bead, the problem of brightness attenuation caused by inconsistent current density in a long-time high-power working state in the prior art is solved.

The invention relates to the field of catalysts, and discloses an alumina carrier composition, an alumina carrier and a preparation method and application thereof, the alumina carrier composition contains pseudo-boehmite and fluoride, and does not contain acid with a pKa value of-16 to 4. The preparation method of the alumina carrier provided by the invention comprises the following steps: 1) performing first molding on the alumina carrier composition provided by the first aspect of the invention to obtain a first product; and (2) carrying out second forming and roasting on the first product obtained in the step (1) and a forming aid. According to the alumina carrier provided by the invention, a large amount of NOx or hydrogen chloride and other atmospheric pollutants cannot be formed in the preparation process, the alumina carrier is more environment-friendly and safer, and the side pressure strength and the specific surface area of the catalyst carrier can be increased.

The invention discloses an anti-impact and anti-seismic assembly type column with a protection device, and relates to the technical field of building body stand column anti-collision, the anti-impact and anti-seismic assembly type column comprises a foundation bottom plate, an annular bearing body, an anti-seismic plate, an anti-impact module I, an anti-impact module II and a concrete square column with a reinforcement cage, the foundation bottom plate sleeves the outer side of the concrete square column; the annular bearing body is located above the foundation bottom plate and fixed to the outer side wall of the concrete square column. The annular bearing body comprises four pre-buried plates and right-angle connecting assemblies, the four pre-buried plates are vertically arranged on the four side walls of the concrete square column respectively, and any two adjacent pre-buried plates are fixedly connected through the right-angle connecting assemblies. The number of the first anti-impact modules is four, the first anti-impact modules are arranged on the outer sides of the four embedded plates through the anti-seismic plates correspondingly, and the corresponding ends of every two adjacent first anti-impact modules are fixedly connected through the second anti-impact modules. Modularized assembly is adopted, replacement and repair are easy, the corrugated steel plate and the POZD elastomer material are combined, and the anti-seismic and anti-impact capacity is improved.

The utility model provides a reusable dinner plate packaging box which comprises a bottom plate, the left side of the bottom plate is connected with a first folding part, and the right side of the bottom plate is connected with a second folding part. The second folding part comprises a right vertical plate rotationally connected with the bottom plate, a right panel rotationally connected with the right vertical plate, a right supporting plate rotationally connected with the right panel and a right connecting plate rotationally connected with the right supporting plate, a right inserting part is arranged at the tail end of the right connecting plate, and a first inserting opening allowing the right inserting part to be inserted is formed in the right vertical plate; the bottom plate is provided with a second insertion opening allowing the right insertion part to be inserted therein, the right supporting plate is provided with a first containing window, and the first folding part is provided with a second containing window. When the right inserting part is inserted into the first inserting opening, the second folding part is bent and rolled up towards the bottom plate so that the right vertical plate, the right panel, the right supporting plate and the right connecting plate can form a quadrilateral structure, and the first containing window and the second containing window are correspondingly arranged so that the right portion and the left portion of the dinner plate can be inserted into the first containing window and the second containing window respectively; when the right inserting part is inserted into the second inserting opening, the right vertical plate is flush with the bottom plate, so that the surface of the right supporting plate faces upwards, and then the dinner plate can be vertically placed in the first containing window.