1167results about How to "Avoid wasting" patented technology

The invention belongs to the field of life, and particularly relates to a thermos bottle with visible water storage capacity. The thermos bottle comprises a shell and an inner container arranged inside the shell. A base capable of vertically moving is mounted at the bottom of the shell, an elastic airbag is fixedly connected between the upper end of the base and the lower end of the inner container, a vertical strip opening is hermetically connected onto the side wall of the shell, a transparent tube is fixedly connected into the strip opening, the lower end of the transparent tube is communicated with the elastic airbag, and a piston block is hermetically connected into the transparent tube. The quantity of water in the thermos bottle can be known by observing the position of a piston block, a piezoelectric ceramic is used for power generation when water is injected, an LED (light-emitting diode) lamp in the piston block can emit light, the quantity of the water in the thermos bottlecan be known conveniently by people, and scalding is avoided. In addition, by the aid of an annular air cushion, when the thermos bottle falls, a good buffering function can be achieved, and impact onthe inner container is reduced.

This invention relates to the field of electrical equipment monitoring technology, specifically a cloud-based smart meter real-time electricity consumption monitoring system. The system includes: using smart meters to monitor enterprise electrical equipment in real time within a target monitoring area, collecting real-time electricity consumption data of the equipment; sensors within the smart meters monitoring the meters; analyzing the situation when the collected electricity consumption data exceeds a threshold value to determine if it constitutes an abnormality; obtaining the smart meter's health value, analyzing its health status, and issuing alerts to staff based on the analysis results; calculating the probability of an abnormal electricity consumption based on staff reports of equipment and smart meter maintenance; and establishing an electrical equipment electricity consumption database based on the real-time electricity consumption data collected by the smart meters for managing the enterprise's electrical equipment.

The utility model belongs to the technical field of stirring, disclose a kind of multifunctional handheld stirring device, including mounting plate, the middle part of mounting plate is connected with vertical downward telescopic stirring rod by bearing, the bottom end of telescopic stirring rod is connected with replaceable modular stirring head by quick dismounting and replacement assembly, fluid splash shield is equipped on telescopic stirring rod;The top of telescopic stirring rod is equipped with passive gear, and the top of mounting plate is equipped with the fixed branch plate of U shape.The utility model can adjust length by the setting of telescopic stirring rod, can adapt to the material stirring use of different depth;The bottom end of telescopic stirring rod is connected with replaceable modular stirring head by quick dismounting and replacement assembly, can carry out quick dismounting and replacement to modular stirring head, satisfy diversified demand;The setting of fluid splash shield can prevent fluid splashing, avoid causing material waste, and brushless motor can provide stable driving force by gear transmission.

This invention relates to the field of nuclear safety equipment testing technology. It provides a method for optimizing parameters in accelerated reliability testing of nuclear safety-grade valves. The method involves the following steps: establishing a correlation model between accelerated stress and life parameters; calculating the acceleration factor and formulating an initial test plan; deriving the theoretical sample size based on the success-failure test method combined with confidence requirements; constructing an extended coefficient table using the range-extended test method to optimize test parameters; generating multiple accelerated test plans through chi-square distribution verification; eliminating plans that do not meet the life characteristic threshold; determining the optimal sample size, number of failures, and test cycle through comprehensive test cost and risk analysis; and finally outputting a complete test plan including the action interval time. This method solves the problems of limited test samples, insufficient failure data, low confidence levels, and difficulty in adapting accelerated models in existing high-reliability valve technologies.

The present application relates to the technical field of power distribution control, and particularly relates to a power intelligent dynamic distribution method for a skid steer loader based on multi-working condition identification. The method comprises the following steps: performing skid steer loader multi-modal operation characteristic analysis on power states of skid steer loader multi-source operation data to generate skid steer loader multi-modal operation characteristic data; performing skid steer loader working condition characteristic analysis on the skid steer loader multi-modal operation characteristic data to generate skid steer loader working condition characteristic data; performing power demand characteristic analysis on working condition dynamic change trends based on skid steer loader real-time operation data and the skid steer loader working condition characteristic data to generate working condition dynamic change trend power demand characteristic data; and performing skid steer loader power distribution and dynamic optimization processing based on the working condition dynamic change trend power demand characteristic data to generate skid steer loader power distribution dynamic optimization data. The present application realizes efficient and energy-saving intelligent distribution of power under multi-working conditions of a skid steer loader.

The utility model relates to camellia oil low temperature extraction technical field, concretely relates to a camellia oil low temperature extraction device, include: low temperature extraction main part, the low temperature extraction main part outside is provided with the oil outlet pipe, the oil outlet pipe below is provided with the filter jar, filter mechanism, including fixedly connected in the filter jar inside baffle, the baffle one side is provided with the filter screen that sets up the fan shape, the baffle top is provided with the notch that sets up the fan shape, the notch below is provided with the material guide plate that extends to the filter jar outside, the material guide plate above is provided with the cleaning brush, the utility model discloses through the setting of filter mechanism, in the mixed oil liquid enters to the filter jar, under the action of filter screen to the material slag in oil liquid carries out the filtration, and under the action of cleaning brush will the material slag that remains on filter screen scrape into the notch, finally through the material guide plate and discharge the filter jar outside, prevent the material slag to accumulate on filter screen, improve the filtration efficiency to mixed oil liquid.

This utility model discloses a constant temperature mixing device for weather-resistant adhesive for building stone, including a constant temperature furnace. A furnace cover is fixedly connected to the top of the furnace, and a first motor and a feed inlet are fixedly connected to the top of the furnace cover. A rotating rod is fixedly connected to the output shaft of the motor, and a stirring belt is fixedly connected to the bottom end of the rotating rod extending into the furnace. A moving ring is provided inside the furnace, and a scraper ring is fixedly sleeved on the outer wall of the moving ring. An L-shaped support plate is fixedly connected to the top of the furnace cover, and a second motor is fixedly connected to the top of the L-shaped support plate. A threaded rod is fixedly connected to the output shaft of the second motor. This constant temperature mixing device for weather-resistant adhesive for building stone, through the scraper assembly, can scrape off residual material on the inner wall of the furnace, avoiding material waste and preventing interference with subsequent mixing, making it suitable for widespread use.

The application relates to a sapling transportation device for forestry, belonging to the technical field of sapling transplanting, which comprises a storage box, a fixing assembly and a water application assembly. The water application assembly is composed of a cooling water bag, a temperature detector, a water pump, a water tank and a water delivery pipe. The temperature detector monitors the ambient temperature in real time. When the temperature is too high, the water pump is automatically started, the water in the water tank is delivered to the cooling water bag through the water delivery pipe, and is sprayed onto the sapling through a nozzle, so that cooling and moisturizing are realized. The excess water is returned to the water tank through the water seepage return of the bottom of the storage box, is recycled, the whole process is automatically completed, the labor intensity is reduced, timely water supplement during high temperature is ensured, waterlogging and root rot are avoided, and a healthy and moist environment of the sapling is maintained.

The application provides a communication control method and device, computer equipment and a computer readable storage medium, and belongs to the technical field of computers. The method comprises the following steps: receiving and analyzing an event subscription request sent by a service server, determining at least one subscription event and at least one subscription data indicated by the event subscription request; sending a data transmission instruction to the service server according to each subscription event; and in response to receiving confirmation information sent by the service server, sending each subscription data corresponding to each subscription event to the service server. The application can improve the resource utilization rate and efficiency during server communication.

The application belongs to the technical popularization technical field, and provides an interactive method, system and propaganda cart with technical popularization, which comprises the following steps: adopting a K-means clustering algorithm, performing clustering analysis on user data according to a preset propaganda type, and outputting a clustering cluster; based on any clustering cluster, determining a popular time period by performing time sequence statistical analysis on user historical behavior data; acquiring an existing propaganda type, comparing and analyzing the existing propaganda type with the preset propaganda type, judging whether there is a lack of the existing propaganda type compared with the preset propaganda type, and generating a first popularization sequence list; if there is a lack, performing feature similarity analysis on the missing propaganda type and the non-missing propaganda type, identifying similar propaganda types in the non-missing propaganda type, and generating a second popularization sequence list; and the application tilts key resources to high-potential user clusters and optimal popularization time periods, thereby reducing popularization cost and improving popularization cost performance.

The utility model discloses a kind of transformation deaerator low-pressure steam emptying recovery device, including transformation deaerator, the upper portion of transformation deaerator is equipped with low-pressure steam emptying pipe, the upper end of deaerator low-pressure emptying is connected with negative pressure pipe, and the end of negative pressure pipe away from low-pressure steam emptying pipe is connected on the inlet end of steam absorption ejector suction chamber.Compared with prior art, the utility model is by using condensate recovery water pump to extract condensate in condensate recovery water pool, pressurized to 0.5-0.6Mpa, transported to steam absorption ejector nozzle, as jet source, form negative pressure in steam absorption ejector suction chamber, steam absorption ejector suction chamber is connected with transformation deaerator low-pressure steam emptying, the negative pressure generated in steam absorption ejector suction chamber, the low-pressure steam emptying of transformation deaerator is absorbed into steam absorption ejector suction chamber and water carries out heat transfer, mass transfer, condenses into water, to achieve the purpose of recovery.

The application discloses a kind of for tantalum niobium tailings in tin metal recovery's synergistic treatment system, specifically related to metallurgical solid waste resource utilization technical field, acoustic-electricity perception pre-agglomeration module exports pre-agglomeration probability index according to pre-agglomeration threshold value;Heat resistance chromatography module exports the temperature field and fluidized void fraction distribution of suspected agglomeration area;Inhibiting ingredient self-adapting module calculates inhibitor addition rate according to distribution;Wind material decoupling adjustment module exports decoupled wind speed and feed rate set value according to addition rate and bed pressure drop;Chain negative feedback blocking module detects pressure drop deviation to generate feedback correction, superimposed to wind speed set value and reversely adjust feed rate set value, while used to update pre-agglomeration threshold value;The application realizes the online identification of agglomeration precursor, accurate danger area precision inhibiting and the closed-loop cooperation of wind material decoupling, inhibits the nonlinear deterioration of coking loss flow, makes tin recovery rate keep stable when tailings fluctuation, and reduces inhibitor consumption and manual intervention.

This utility model relates to the field of greening devices for building construction, and more particularly to an energy-saving greening device for building exterior wall construction, comprising a placement box and a water box; the placement box is equipped with a water box above it for storing water and quantitatively watering the plants in the placement box; this utility model involves planting plants sequentially in flowerpots in the placement box, and then supplying water to the plants through the water box to provide quantitative watering. Simultaneously, when it rains, the water box can filter and store rainwater for later use. By adopting a quantitative watering structure, it ensures that the plants receive an appropriate amount of water, neither too much nor too little, which helps the plants grow healthily and avoids root rot caused by excessive water or growth stunts caused by insufficient water. Furthermore, by precisely controlling the amount of water, waste can be avoided, which is especially important in the context of increasingly scarce water resources, contributing to sustainable greening construction and reducing energy consumption.

The utility model belongs to freezer technical field especially is a kind of frostless display freezer, including cabinet, and the front side hinged connection of cabinet is connected with switch door.The utility model is placed on the baffle in cabinet by the object in cabinet under the condition that switch door is closed, it is convenient to show the article in cabinet to outside, when taking article, hold U-shaped handle and press push rod, push rod is moved by corresponding connecting rod with the driving connecting plate, connecting plate is stretched to corresponding second spring in the process of moving, connecting plate is moved by hinged link with the driving square bar, square bar is moved with the driving corresponding limit ring, limit ring is stretched to corresponding first spring in the process of moving, so that square bar is separated from corresponding square groove, U-shaped handle is pulled at this time, U-shaped handle is moved with the driving corresponding drawer, drawer is slid on guide rod with the driving corresponding slider, so that rectangular hole is not shielded, take out the article on baffle, avoid the energy waste caused by switch door wide open.

The application discloses a double-membrane water treatment system, which comprises a front ultrafiltration assembly and at least one reverse osmosis assembly; the front ultrafiltration assembly is provided with an ultrafiltration water tank; the reverse osmosis assembly is connected to the downstream of the ultrafiltration water tank and is provided with a water tank; the water production side and the concentrated water side of the reverse osmosis assembly are respectively connected to a discharge flow path; a shunt device provides a first discharge flow path and a second recovery flow path for flushing water from the reverse osmosis assembly; the first discharge flow path is connected to an external discharge point of the system; the second recovery flow path is connected to the water tank or the ultrafiltration water tank in the system; a control unit receives an operating state signal of the reverse osmosis assembly to control the shunt device to selectively guide the flushing water to the first discharge flow path or the second recovery flow path; in a flushing state, the shunt device guides the flushing water to the second recovery flow path; and in a chemical cleaning state, the shunt device guides the flushing water to the first discharge flow path. The scheme realizes recycling of high-quality flushing water and improves the recovery rate of the system.

The present application belongs to the technical field of industrial internet security, and relates to an industrial internet vulnerability library establishment method, which solves the problems of low construction quality, weak traceability, insufficient continuous evolution ability and difficulty in supporting deep security application of the existing vulnerability library. The present application obtains industrial internet multi-source vulnerability data and external feedback data, obtains extraction results and initial confidence based on multi-source vulnerability data by adopting rule extraction and remote supervision deep learning joint extraction, divides the certainty knowledge base and the to-be-reviewed queue according to the double threshold after the confidence is optimized by the graph convolution network, analyzes the external feedback data of the samples in the to-be-reviewed queue as the instant reward signal, optimizes the sampling strategy and updates the model through deep reinforcement learning, extracts triples from the certainty knowledge base to build a knowledge graph and generate a version hash chain regularly, and obtains a structured vulnerability knowledge base containing a hash chain and confidence evaluation. The present application realizes high-precision construction and dynamic optimization of the vulnerability library.

This utility model relates to the field of ultrafiltration membrane equipment technology, and discloses an ultrafiltration membrane device for milk production, including a frame with crossbars fixedly connected to both the upper and lower ends of the frame. This ultrafiltration membrane device for milk production, through a shock-absorbing mechanism, involves first installing a shock-absorbing filter frame through the filter tube onto the inside of the crossbars when the device is to be used. A rubber shock-absorbing ring is installed in the middle of the shock-absorbing frame, which is initially fixed to the outside of the filter tube. Then, a shock-absorbing spring is installed outside the rubber shock-absorbing ring. To ensure shock absorption while protecting the filter tube, foam cotton is filled outside the shock-absorbing spring and inside the shock-absorbing frame for shock absorption protection. This effectively reduces vibration and shaking outside the filter tube, preventing the connection between the filter tube and other parts of the equipment from gradually loosening due to vibration, which could lead to milk leakage, waste of raw materials, contamination, interference with the normal operation of the ultrafiltration process, and reduced production efficiency.

This utility model relates to a reagent bottle, belonging to the technical field of laboratory equipment. The reagent bottle includes a bottle body, a connecting cap, and a Luer cap; the bottle mouth of the bottle body connects to the large opening of the connecting cap; a Luer connector is provided on the side of the connecting cap away from the bottle mouth, and the Luer connector connects to the Luer cap; a silicone gasket is provided between the bottle body and the connecting cap, and a polydimethylsiloxane coating is provided at the contact point between the bottle body and the silicone gasket. The connecting cap is used to close the large bottle mouth, the Luer cap is used to close the connecting cap, the bottle mouth is used to inject reagent into the bottle, the Luer connector is used to remove reagent to prevent waste during removal, and the polydimethylsiloxane coating is used to reduce reagent residue at the bottle mouth and on the bottle body; the entire assembly is connected by threads, and the triple-seal design achieves overall sealing of the reagent bottle.

The present application relates to the technical field of feed processing, and particularly relates to a preparation method of Maotai-flavor distiller's grains fermented feed, which comprises the following steps: drying treatment based on the moisture content of Maotai-flavor distiller's grains to obtain basic distiller's grains; determining the strain ratio of brewer's yeast, bacillus subtilis and aspergillus niger based on the tannin content of the basic distiller's grains to obtain a compound fermentation inoculant; inoculating and then fermenting; determining state evaluation parameters based on the total polyphenol accumulation rate, the dissolved oxygen consumption rate and the microbial activity index during the fermentation process, and performing qualified evaluation, and dynamically adjusting when unqualified; determining the fermentation end point based on the tannin degradation rate and the total polyphenol accumulation rate; and mixing the fermented distiller's grains with the basic feed at a mass ratio of 1% after low-temperature drying of the fermented distiller's grains. The present application realizes three-layer control of raw material evaluation, process control and end point determination, significantly improves the stability and content of functional active ingredients in the product, reduces the tannin and safety risk, and has a good intestinal health improvement effect on animals.

This application relates to a rice husk combustion and recycling drying device, comprising: a combustion furnace and a drying chamber. The combustion furnace includes a biomass buffer chamber and a combustion chamber that are interconnected. An ash chamber connected to the combustion chamber is located inside the combustion furnace. A grate is located above the ash chamber inside the combustion furnace. A heat exchange chamber connected to the combustion chamber is located above the combustion furnace. An igniter is installed on the combustion furnace to ignite the rice husks inside the combustion chamber. A heat exchanger is installed inside the heat exchange chamber. The heat exchanger has a heat exchange channel for heating air. This application, through the coordinated use of the biomass buffer chamber, combustion chamber, ash chamber, heat exchange chamber, and igniter, fully utilizes the rice husks generated during rice processing, burning them as fuel to provide heat energy for the drying process, thus avoiding resource waste caused by the indiscriminate disposal or inefficient use of rice husks.

The utility model discloses a kind of hydraulic cavitation reinforced cement sand cyclone separation devices, including hydraulic cavitation pipe, feed assembly and cyclone separation component;One end of the hydraulic cavitation pipe is connected with the feed assembly, and the other end is connected with the cyclone separation component. The feed assembly includes silt mixed liquid inlet pipe, the silt mixed liquid inlet pipe is connected with the hydraulic cavitation pipe, and inlet valve is connected on the silt mixed liquid inlet pipe. The feed assembly further includes air compressor, and the air compressor output end is connected with the hydraulic cavitation pipe by first pipeline. The cyclone separation component includes cyclone separator, the inlet of the cyclone separator is connected with the hydraulic cavitation pipe by second pipeline, and the lower end of the cyclone separator is connected with sludge discharge valve, and the utility model aims at overcoming the defects of the prior art to provide a kind of hydraulic cavitation reinforced cement sand cyclone separation device, improve the recycling rate of sand particle.

This invention relates to the field of automated warehousing technology and discloses an automated storage and retrieval system (AS / RS) based on a heavy-duty stacking robot. A material storage area is located on one side of the material entry / exit area, and a preparation and charging area is located on the other side. An import / export docking area is located inside the material entry / exit area, and a lifting and transferring machine is also included within the import / export docking area. An automated storage and retrieval system with a three-dimensional racking mechanism is located inside the material storage area. This AS / RS based on a heavy-duty stacking robot, through its modular architecture and intelligent collaborative design, effectively solves the problems of low space utilization, high cost, and poor flexibility in traditional AS / RS. It achieves precise and efficient handling of heavy-duty goods, eliminates the need for dedicated tracks, reduces modification costs, and significantly improves the overall automation level, space utilization, and operational stability of warehousing operations. It caters to both new construction and renovation needs, providing enterprises with a low-cost, highly adaptable heavy-duty warehousing solution.

The utility model relates to recovery device technical field, concretely is a kind of benzene recovery device, including waste oil buffer tank, waste oil buffer tank is connected with the top of crude benzene crystallization tank by pipeline, the bottom of crude benzene crystallization tank is connected with the top of fine benzene rectifying column by pipeline one, and cooling pipe is wound in side portion, and cooling pipe is connected with freezer;Pipeline one is provided with feed pump;The top of fine benzene rectifying column is connected with fine benzene condenser by pipeline, and bottom is connected with heavy residue discharge pipe;Fine benzene condenser is connected with fine benzene buffer tank by pipeline two;The utility model is through being provided with crude benzene crystallization tank and fine benzene rectifying column, first crystallization comes out crude benzene, and then distills crude benzene, and the fine benzene of distillation comes out, to realize the extraction and recovery of benzene, avoid the waste of resources, reduce cost.

The invention discloses a plasma activated water preparation system based on fuzzy PID (Proportion Integration Differentiation) adaptive temperature and power matching cooperative control. The plasma activated water preparation system comprises a human-computer interface, a main controller, a temperature / power sensor, a parallel double fuzzy PID controller, an intelligent coordinator, a power / temperature actuator and a plasma reaction machine, a temperature / power sensor sends a water body temperature Tfb and a discharge power Pfb to a main controller in real time, a temperature fuzzy PID controller and a power fuzzy PID controller output suggested powers Ut and Up, an intelligent coordinator outputs a final power instruction and a cooling control signal after arbitration according to a state machine that Tfb is smaller than or equal to Tset normal power, Tfb is larger than Tset and Pfb is larger than Pmin and power is preferentially reduced, and Tfb is larger than Tset and Pfb is smaller than or equal to Pmin and is forcibly cooled. And the power actuator continuously adjusts the discharge power according to the discharge power, and the temperature actuator implements auxiliary heat dissipation, so that the water temperature is accurately locked in the optimal active matter generation interval under the nonlinear and time-varying working conditions, the discharge intensity is ensured not to be lower than Pmin, and high-activity, high-energy-efficiency, continuous and stable plasma activated water preparation is realized.

The utility model provides a kind of industrial silicon powder granulating device, comprising: granulator body, the screening device of being equipped in the discharge port below of granulator body, the conveying plate of being fixed in the discharge port below of screening device, the powder elevator of being equipped in granulator body, conveying plate side, the inlet of powder elevator of being equipped in the lower end of conveying plate, the discharge port of powder elevator being equipped in the above of granulator body;Through above-mentioned scheme, screening device can promptly, effectively screen the particle produced by granulator, effectively separate qualified particle meeting granularity requirement and unqualified particle or powder, powder recycling is realized by powder elevator, avoid the waste of powder, reduce the consumption of raw material, reduce the raw material procurement cost of enterprise.

The automobile front door cover size detection device of the present disclosure comprises a part storage table for placing parts, a part grabbing hand for grabbing parts, a support component for fixing and clamping parts, a detection system comprising a data acquisition element, a data calculation system and a data display system, the data acquisition element is used for acquiring part data, the data calculation system is used for determining part size change value according to part data, and the data display system is used for outputting part size change value; a collaborative robot is used for moving the part grabbing hand, and the collaborative robot is used for moving the data acquisition element; a control system is in communication connection with the part grabbing hand, the detection system and the collaborative robot, the control system is used for outputting detection instructions, the detection instructions comprise gripping instructions, part moving instructions and scanning instructions, the part moving instructions are used for controlling the collaborative robot to move the parts through the part grabbing hand, and the scanning instructions are used for controlling the collaborative robot to move the data acquisition element to scan the parts to acquire part data.

This invention discloses a biocontrol spore cultivation device and its usage method for controlling Japanese pine scale, belonging to the field of pine scale control technology. The device includes an inoculation unit and several cultivation units. The inoculation unit includes a frame with a chain conveyor inside. Multiple positioning support plates are evenly spaced on the chain conveyor. A pre-compression mechanism and an inoculation mechanism are located directly above the chain conveyor on the frame, both spanning the chain conveyor. Several cultivation units are located at the outlet of the inoculation unit. This invention achieves automatic inoculation of biocontrol spores, improving inoculation efficiency and enabling precise control of the inoculation amount, thus improving the uniformity and consistency of biocontrol spore concentration. Next, the inoculated bottles are transferred to multiple cultivation units for static cultivation to improve the viability and yield of biocontrol spores, meeting the needs of large-scale production.

The utility model provides a kind of atomization device, including liquid medicine warehouse, the installation pipe of being fixed in the bottom of the liquid medicine warehouse and the suction pipe of being fixed in the one side of the liquid medicine warehouse, first cavity is equipped in the liquid medicine warehouse, second cavity is equipped in the suction pipe, the first cavity is communicated with the second cavity and is arranged, the first cavity is inclined and arranged in the side close to the suction pipe, atomization piece is equipped in the suction pipe, the atomization piece is contacted and abuts in the side of the second cavity, the second cavity is close to the one side of the installation pipe and is equipped with the inclinedly arranged slide, the one end close to the installation pipe of the slide is contacted and abuts with the atomization piece, PCB board is equipped in the installation pipe, the PCB board is electrically connected with the atomization piece, to make the atomization piece carry out atomization to the liquid medicine in the liquid medicine warehouse, the utility model can effectively reduce the residue of the liquid medicine in the liquid medicine warehouse, avoid the waste of liquid medicine while improving atomization effect.

This invention provides a method for recovering and utilizing distillation residue after solvent removal from homohydric anhydride, relating to the field of fine chemical technology. The method includes anhydride treatment, vaporization and sublimation, dissolution and recrystallization, distillation, and water washing. In this invention, the distillation residue is anhydride-treated under high temperature and negative pressure, followed by vaporization and sublimation under vacuum to separate mechanical impurities and high-boiling substances. Then, through dissolution and recrystallization, the difference in solubility between homohydric anhydride and metahydric anhydride in polar solvents is utilized to preferentially crystallize out the homohydric anhydride. The mother liquor is distilled to remove the solvent, and then colored impurities are removed by hot water washing and activated carbon adsorption. Finally, it is cooled and crystallized to obtain trimellitic acid. The homohydric anhydride obtained by this invention has a purity ≥95% and a yield of 84-89%, and the trimellitic acid has a purity ≥97% and a yield of 81-86%. This method achieves effective recovery of high-value-added components from distillation residue, demonstrating significant economic and environmental benefits and promising application prospects.

The utility model is suitable for photovoltaic technical field provides a kind of battery component and photovoltaic system, battery component includes: several cell strings, cell string includes the several cell piece connected in series by welding band, and the several cell piece includes the first cell piece located at the end of cell string, the second cell piece adjacent to first cell piece;Busbar is set on the back of second cell piece;Along first direction, second cell piece includes oppositely arranged first edge and second edge, and second edge is set away from first cell piece compared with first edge, and the back of second cell piece is provided with several thin grids;The distance of busbar to first edge is d1, and 0.1mm The utility model discloses a battery component can reduce the risk of cell piece hidden crack and crack in lamination process, and can reduce short-circuit risk, to improve battery component production yield.