320results about How to "Reduce adsorption" patented technology

The invention relates to the technical field of carbon monoxide oxidation catalysts, and discloses a sulfur-tolerant noble metal-based CO oxidation catalyst as well as a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: dipping a carrier in an aqueous solution containing a noble metal precursor and an auxiliary agent precursor, and then drying and roasting to obtain a catalyst matrix; carrying out pre-reduction treatment on the catalyst matrix in a hydrogen-containing atmosphere to obtain a catalyst intermediate; carrying out induced activation on the catalyst intermediate in an atmosphere containing CO and H2S; wherein the carrier is at least one of titanium dioxide, cerium dioxide, aluminum oxide and zirconium dioxide, and the metal element in the auxiliary agent precursor is at least one of Fe, Co and Ni. The catalyst prepared by the method provided by the invention can realize the high-selectivity oxidation process of H2S species, inhibits the adsorption of S species and the formation process of sulfate, and realizes the high-conversion-rate oxidation reaction of carbon monoxide in the presence of H2S.

The invention provides a method for efficiently synthesizing basic nickel carbonate, and belongs to the technical field of chemical preparation. Comprising the following steps: (1) preparing a mixed solution of sodium carbonate and sodium hydroxide; (2) under low-temperature and high-speed stirring conditions, dropwise adding a nickel salt solution into the mixed solution, adding a competitive adsorbent, adjusting the pH value of the solution, then heating, continuing stirring reaction, separating the competitive adsorbent by a magnet, centrifuging, washing and collecting prepared primary basic nickel carbonate; and (3) recrystallizing the primary basic nickel carbonate in an ethanol water solution, and drying to obtain the basic nickel carbonate. According to the preparation method disclosed by the invention, the content of impurity ions in the product is reduced, so that the high-purity basic nickel carbonate can be prepared, the synthesis efficiency is high, the production cost is relatively low, the method is green and environment-friendly, the competitive adsorbent can also be repeatedly utilized and recycled, the production cost is reduced, and the method has a wide application prospect.

The invention discloses equipment and a method for detecting the strength of an annular section of a large-diameter TA31 pipe, and relates to the technical field of pipes. According to the annular section strength detection equipment for the large-diameter TA31 pipe, through the design of a composite mechanism, the pipe is placed in the processing mechanism, the pipe space is restrained through the limiting mechanism, the pipe is prevented from moving in the inspection process, danger to workers is avoided, and therefore normal operation of the equipment is kept; the fixing mechanism controls the pipe to rotate and rub with the processing mechanism, so that the effect of cleaning the surface of the pipe is achieved, the situation that stains on the surface of the pipe affect the detection effect is avoided, a hydraulic rod controls a pressing plate to extrude the surface of the pipe, and the detection effect on the annular section strength of the pipe is achieved; therefore, the friction force on the surface of the pipe is increased, the pipe is prevented from shaking in the downward pressing process, and the operation stability is improved.

The invention discloses a method for determining the purity of electronic-grade hexafluoroethane, and relates to the technical field of the purity of hexafluoroethane, and the method comprises the following steps: vacuumizing a specific sampling container to 10 <-3 > Pa to 10 <-2 > Pa, forming a super-hydrophobic coating on the inner wall, sampling in a temperature-controlled, humidity-controlled and pressure-controlled environment, and removing water and impurities through two-stage pretreatment; enhancing analysis by using a gas chromatograph, a specific carrier gas, a column temperature program, a micro-fluidic chip and an ion mobility spectrometry; then secondary scanning analysis is carried out by using a mass spectrometer double ion source and a calibration system; and finally, learning and matching an algorithm through a data processing system machine. Samples can be accurately collected and pretreated, gas chromatography and mass spectrometry analysis is more accurate and efficient, a data processing system can accurately determine impurities and purity, multiple measurement data can be counted and analyzed, the result reliability is improved, all parts of the system are optimized and matched, the accuracy and stability of the whole process are guaranteed, and the purity is calculated; the method further comprises statistical analysis of multiple measurement data.

The invention belongs to the technical field of agricultural nanoparticle preparations, and relates to a dopamine nanoparticle for relieving plant salt stress and a preparation method thereof. And adding the double-ligand chelated dopamine solution into the lignin-based nano-particle suspension, and stirring to obtain the lignin-based nano-particle suspension. According to the invention, metal ions are adopted as a connecting bridge and are respectively chelated with dopamine and ethylenediamine tetraacetic acid salt, so that double-ligand chelated dopamine is obtained, and the self-polymerization behavior of dopamine is inhibited. The invention also provides a method for loading dopamine by using lignin-based nanoparticles. The self-polymerization of the dopamine is further inhibited; the adsorption of the soil on the dopamine is reduced, and the utilization rate of the dopamine is improved.

The invention discloses fused quartz plate welding equipment with a positioning effect, and relates to the technical field of welding, and the fused quartz plate welding equipment comprises a composite mechanism. According to the fused quartz plate welding equipment with the positioning effect, through the design of the composite mechanism, the two fixing mechanisms are arranged and distributed on the two sides of the composite base, quartz plates are placed on the inner sides of the fixing mechanisms, and the effect of fixing the plates is achieved through the fixing mechanisms, so that the stability during welding is kept, deviation is prevented, and the welding precision is improved; the fixing mechanisms slide on the outer sides of the sliding rail columns, the two fixing mechanisms move towards one side of the welding machine, the mechanical butt joint effect is achieved, deviation caused by manual butt joint is avoided, the sliding frame body slides on the inner side of the composite frame body, the welding machine is driven to conduct transverse operation, and therefore the plate welding effect is achieved. When laser welding is carried out, dazzling light exists, the light is shielded through the protection mechanism, the working environment is optimized, and the vision of personnel is prevented from being affected.

The utility model relates to the technical field of battery processing equipment, in particular to a die cutting mechanism and battery cell winding equipment. A die cutting mechanism comprises a material belt guiding assembly used for guiding a material belt so that the material belt can be conveyed downstream in a second direction different from a first direction after being conveyed by a preset distance in the first direction, and the position where the material belt turns to the second direction from the first direction is a material belt turning position; the die cutting assembly is used for carrying out die cutting on waste materials on the material belt at the upstream of the material belt steering position, so that a tab is formed on the material belt; the waste material absorbing assembly is opposite to the material belt so as to absorb waste materials and the tabs to the waste material absorbing assembly; the waste material receiving assembly is used for adsorbing waste materials on the waste material adsorption assembly into the waste material receiving assembly through the adsorption opening; and the shielding piece is used for reducing the adsorption force of the adsorption opening to the material belt. According to the die cutting mechanism provided by the invention, the tabs can be relatively flat, so that the quality of battery cells is relatively good.

According to the method for preparing the nanocrystalline nickel foil through the electro-deposition method and the nanocrystalline nickel foil prepared through the method, a nickel plate serves as an anode, a titanium plate serves as a cathode, the anode and the cathode are both placed in electrolyte, and the nanocrystalline nickel foil is prepared on the titanium plate through electro-deposition by adopting a pulse power source; the electrolyte comprises water and the following components by concentration: 300-500g / L of nickel sulfate; 5-15 g / L of nickel chloride; 0.01 to 0.2 g / L of a wetting agent; 20-60 g / L of a buffer agent; 0.05-2 g / L of a brightener; the pH value of the electrolyte is 2-4, and the electro-deposition temperature is 40-60 DEG C; the buffering agent is selected from one or two of citric acid and sodium citrate; and the brightener is selected from one or more of butynediol propoxide, butynediol ethoxylate, sodium sulfopropyne ether, propynol ethoxylate and glycerol monopropyne ether. Based on the method, the problem that in the prior art, the nickel foil prepared through an electro-deposition method is large in fine grain size is solved.

The invention discloses an air carbon capture system coupled with compressed air energy storage and a capture method thereof. The air carbon capture system comprises a compressed air energy storage system, a heat recovery system and an air carbon capture system, the compressed air energy storage system comprises a multi-stage air compression device, a compressed air storage facility and an air turbine unit; the air carbon capture system comprises a CO2 adsorption-desorption reactor and a CO2 storage tank; the CO2 adsorption-desorption reactor is arranged between two certain stages of compressors of the multi-stage air compression device; the heat recovery system comprises a heat storage tank and a normal-temperature tank. According to the invention, the air carbon capture system is coupled with the compressed air energy storage system, so that the adverse effect of water vapor in air on the selectivity and adsorption capacity of the adsorption material can be reduced, and compared with the traditional direct air carbon capture system, the air capture energy consumption is reduced, the CO2 desorption energy consumption is reduced, and the energy utilization efficiency is improved.

The invention relates to a polycarboxylate superplasticizer as well as a preparation method and application thereof. Comprising the following steps: mixing and dissolving IPEG and water, heating to a certain temperature, and adding an oxidizing agent to prepare a solution A; mixing a reducing agent and a chain transfer agent, and adding water to prepare a solution B; mixing an unsaturated acid monomer and a phosphate group-containing monomer, and adding water to prepare a solution C; and adding the solution B and the solution C into the solution A, stirring at a constant temperature until the reaction is completed, and cooling to room temperature to obtain the polycarboxylate superplasticizer, thereby completing the reaction. Compared with the prior art, the method has the advantages that the adsorption of the polycarboxylic acid water reducer to the micro powder is reduced, and the dispersion effect of the polycarboxylic acid water reducer is improved, so that the working performance of the high-micro-powder regenerated masonry mortar is improved, and the like.

The invention discloses giant salamander grease and application thereof in a blood fat reducing product. The giant salamander grease is obtained by adding papain into giant salamander tissues for enzymolysis and then adsorbing by using an egg white modified microsphere adsorbent. The giant salamander grease is refined by using the egg white modified microsphere adsorbent, and then the giant salamander grease is compounded with the dark tea extract, the hawthorn extract and the lotus leaf extract and processed into embedded particles, so that the water solubility of the giant salamander grease preparation can be improved, and the giant salamander grease preparation can be used as an oral preparation for reducing blood fat.

The invention relates to the technical field of waste gas treatment devices, in particular to an adsorption catalysis device for industrial organic waste gas, which comprises a base, an adsorption mechanism, a catalysis mechanism, a hot air circulation mechanism and a controller, the adsorption mechanism and the catalysis mechanism are fixedly connected to the base; the hot air circulation mechanism is fixedly connected to the adsorption mechanism; the adsorption mechanism comprises a shell, an adsorption bed, a partition plate and a bottom box; the bottom box is fixedly connected in the shell; the two ends of the hot air circulating mechanism are communicated with the two ends of the shell; the adding mechanism is used for adding the activated carbon in the adsorption bed after the activated carbon in the adsorption bed is crushed and pulverized; the storage box, the adding pipeline and the plugging block are arranged above the adsorption bed, and the activated carbon in the adsorption bed is added after the activated carbon in the adsorption bed is lost, so that the situation that the adsorption effect on organic waste gas is relatively weak due to the fact that the volume of the activated carbon in the adsorption bed is reduced after the activated carbon is lost or pulverized is prevented.

The invention discloses a microbial culture device for biotechnology, and relates to the technical field of biotechnology, and the microbial culture device comprises a composite mechanism. According to the microbial culture device for the biotechnology, through the design of a composite mechanism, a culture medium is placed in a culture dish, and the culture dish is placed in a fixing assembly by pulling a bearing bracket, so that the effect of fixing an object is achieved, shaking during operation is prevented, and the situation that the culture effect is affected by collision and breakage of the object is avoided; the side, close to the composite shell, of the connecting support is of a beveled structure, liquid flowing is facilitated, liquid residues are reduced, the culture effect is prevented from being affected, when culture is conducted in the composite shell through a culture dish, operation is conducted through a sprayer and a heater according to changes of humidity and temperature, and then the culture dish is taken out after culture is finished; and the interior of the equipment is sprayed through the sprayer, the bearing support is rubbed through the cleaning assembly, internal washing is cleaned, and impurities and stain residues are reduced.

The invention relates to the technical field of battery pack shell processing, in particular to new energy automobile battery pack shell integrated punch forming equipment. Comprising a bottom plate, a workbench is installed at the upper end of the bottom plate, a portal frame fixedly connected with the workbench is erected above the workbench, a male die unit is arranged at the lower end of a horizontal section of the portal frame, a female die unit is arranged at the upper end of the workbench, and a limiting assembly used for circumferentially limiting a plate is arranged at the upper end of the workbench. The limiting assembly is adopted for conducting centering alignment and circumferential limiting on a plate before stamping, and it can be guaranteed that the plate is kept at the fixed and accurate position in the stamping process; the contact area of the male die unit and the female die unit with a punch-formed shell can be reduced through the inward shrinkage assembly and the outward expansion assembly, the friction force and the adsorption force between the male die unit and the shell and between the female die unit and the shell are reduced, the situation that the shell deforms due to external force in the demolding process is avoided, a smoother demolding path can be formed easily, and the demolding quality is improved. The forming quality and the demolding efficiency are improved.

The invention relates to the field of medicines, and discloses slow-release composite powder for removing nitrite and a preparation method thereof, and the slow-release composite powder comprises the following raw materials: bovine bone collagen peptide, sorbitol, L-sodium ascorbate, L-alanine composite powder, vitamin E, earthworm protein, natto powder, cranberry powder and magnesium stearate. Wherein the L-alanine composite powder is prepared from L-alanine, y-aminobutyric acid and L-glutamic acid; according to the present invention, the L-alanine composite powder and the active substance can chemically react with the nitrite in the body so as to convert the nitrite into the safe substance to be discharged out of the body, such that the absorption and the adsorption of the nitrite can be easily reduced, and the formation of the nitrite in the digestive tract can be reduced so as to reduce the concentration of the nitrite in the body; and nitrite is directly prevented from being accumulated to the level of potential health hazards.

The invention discloses a crank guide rod transmission pneumatic needle suction type small-particle-size bean sprout seed automatic sowing device which comprises a vacuum air chamber, a swing air cylinder, a seed conveying pipe, a guide rod, a fixing frame, a pneumatic vibration seed disc and a seedling disc. The device adapts to seeds of different sizes, thicknesses and shapes, and adsorption failure or seed damage is avoided; according to the shape characteristics of irregular leaf-shaped seeds, the specific suction needle caliber, hole shape and air flow distribution are designed, the adsorption efficiency is improved, and it is ensured that the seeds can be stably adsorbed; an airflow channel is optimally designed by virtue of airflow dynamics, so that uniform acting force on the leaf-shaped seeds in the adsorption process is ensured, falling or dislocation of the seeds caused by non-uniform adsorption positions is avoided, the seeding requirements of seeds of different types, sizes and shapes are met, and the universality and the service life of equipment are improved.

The invention provides a composite solid electrolyte containing a modified molecular sieve and preparation and application thereof, the modified molecular sieve in the composite solid electrolyte is a hydrophobically modified molecular sieve, and the hydrophobically modified molecular sieve comprises a molecular sieve and a hydrophobic layer covering the surface of the molecular sieve. The modified molecular sieve in the composite solid electrolyte provided by the invention is a hydrophobic modified molecular sieve, and the hydrophobic layer covered by the molecular sieve reduces the adsorption capacity of the molecular sieve to moisture and reduces the sensitivity of the composite solid electrolyte containing the modified molecular sieve to moisture in air; and the risks of pore channel blockage and side reaction of the composite solid electrolyte are reduced, so that the composite solid electrolyte has more excellent electrochemical stability.

The invention discloses raw material cleaning equipment for EPS foam material processing, and relates to the technical field of foam cleaning, and the raw material cleaning equipment comprises a composite mechanism. The raw material cleaning equipment for EPS foam material processing is designed through a composite mechanism. Raw materials enter from the top of the composite shell, water flow enters from the water inlet pipe, then the motor drives the center rotating shaft to rotate, the stirring mechanism stirs the raw materials, the effect of cleaning the raw materials is achieved, the effects of removing impurities and improving the product quality are achieved, and meanwhile subsequent machining equipment is prevented from being damaged by the impurities; in the rotating process of the central rotating shaft, the friction mechanism and the rotating mechanism are driven to rotate, and the friction mechanism rubs the inner wall surface of the equipment, so that the effect of cleaning materials on the inner wall is achieved, material adhesion is reduced, the adhered materials participate in cleaning operation, it is guaranteed that the materials are uniformly cleaned, and the influence on subsequent cleaning equipment is avoided; and then the materials are discharged from the output mechanism to facilitate subsequent operation.

The invention discloses material transfer equipment for preparation of a veterinary disinfectant, and relates to the technical field of material transfer, and the material transfer equipment comprises a composite mechanism. According to the material transfer equipment for preparation of the veterinary disinfectant, by designing a composite mechanism, starting a first motor, driving a rotating shaft to rotate and moving disinfectant raw materials through paddles, the material transfer effect is achieved, a composite shell is lifted by regulating and controlling a lifting rod, so that the operation condition requirements are met, materials are discharged outwards through a connecting pipe, and the material transfer efficiency is improved. The spiral plate is arranged in the connecting pipe, the effect of uniform material conveying is achieved through the spiral structure, material output smoke dust is reduced, material drifting is reduced, the scraping mechanisms are arranged on the surfaces of the blades, the blades rotate to drive the scraping mechanisms to rub the inner wall of the composite shell, on one hand, the scraping effect on the materials is improved, and the conveying efficiency is improved; on the other hand, material residues are reduced by scraping the inner wall, the inner wall of the equipment is kept clean, material residues are prevented, and pollution of the material residues to the interior of the equipment is avoided.

The invention discloses hoop type safety equipment of a non-stop wind power tower weld joint detection robot, and belongs to the technical field of tower weld joint detection. The non-stop wind power tower tube weld joint detection robot hoop type safety equipment comprises a base plate, the outer side of the base plate is fixedly connected with a mounting box, the outer side of the mounting box is provided with an anti-falling cable, and the end, away from the mounting box, of the anti-falling cable is fixedly connected with a detection robot. According to the hoop type safety equipment of the non-stop wind power tower tube weld joint detection robot, by arranging the tightening assembly, the device can automatically control the driving gear to rotate while moving on a wind power tower tube, so that the device can automatically tighten two anti-falling ropes, and the safety of the device is improved. The device and the detection robot are conveniently tightened on the wind power tower, the situation that when the device moves on the wind power tower, due to the fact that the friction force between the device and the wind power tower is small, the device falls is avoided, and therefore the safety performance of the device is improved.

The invention provides a preparation method of a perovskite thin film, and the method comprises the steps: providing an initial film layer which comprises a first surface and a second surface which are opposite to each other; a coating material is provided, the coating material comprises lead halide and a pore-forming agent, and the pore-forming agent has dehydration property; the coating material forms a porous lead halide framework layer with preset porosity on the first surface of the initial film layer through an evaporation process; coating one side, deviating from the initial film layer, of the porous lead halide framework layer with an organic amine salt mixed solution, and reacting to form an initial perovskite thin film; and performing first type annealing treatment on the initial perovskite thin film to form the perovskite thin film. By adopting the method, the film forming quality of the perovskite film can be effectively improved, and the electrical property of the solar cell can be ensured and improved. The invention also discloses a perovskite cell, a laminated cell and a preparation method thereof.

The invention discloses container shell welding equipment for chemical pressure container machining, and relates to the technical field of shell welding, and the container shell welding equipment comprises a composite mechanism. According to the container shell welding equipment for chemical pressure container machining, through the design of a composite mechanism, the telescopic rod is used for controlling the welding frame to conduct lifting operation, so that welding materials can be attached conveniently, the application range is expanded, and the operation efficiency is improved; and when the telescopic rod controls the welding frame to ascend and descend, the protection mechanism is attached to the top of the material, so that the effect of presetting a welding spot is achieved, deviation during welding is prevented, the welding quality is improved, and the welding efficiency is improved. Materials are welded in a mechanical rotating mode, and normal operation of material welding is guaranteed.

The utility model relates to powder conveying technical field especially is concerned on a kind of catalyst carrier powder conveying equipment;Including the hopper of cone angle ≥70 °, the roughness Ra of the inner wall surface of hopper ≤0.4 μm, pneumatic flow-aiding ring is set in the height ≤1 / 3 cone height of hopper lower part and the height from discharge port, and the annular air cavity of pneumatic flow-aiding ring is connected outside gas source;Pneumatic flow-aiding ring circumferentially distributes first nozzle group and second nozzle group, and the jet direction of first nozzle group is inclined upwards along hopper inner wall, for fluidizing powder layer in advance;The jet direction of second nozzle group is inclined downwards along hopper inner wall, for promoting powder slip.

The invention relates to a corrosion-resistant cable sheath material and a preparation method thereof, and relates to the technical field of cable materials, the corrosion-resistant cable sheath material comprises the following raw materials by weight: 95-105 parts of a base material, 5-10 parts of polyvinylpyrrolidone, 10-18 parts of modified zinc oxide, 1-2 parts of an antioxidant, 0.4-0.8 part of a vulcanizing agent, and 4-8 parts of a plasticizer. Compared with the prior art, the special modified zinc oxide and the polyvinylpyrrolidone in a proper K value range are mainly introduced, and all the components have a synergistic effect, so that the corrosion-resistant stability of the material is remarkably improved, the service life of the cable is prolonged, and the use requirements in the field of submarine underwater cable sheaths are met.

This invention discloses the preparation of nitrogen-containing heterocyclic aluminum-based metal-organic framework materials and their application in methane adsorption. The metal-organic framework material is Al-PyDC or Al-PzDC, wherein Al-PyDC is formed by the coordination of aluminum ions with 3,5-pyridinedicarboxylic acid, and Al-PzDC is formed by the coordination of aluminum ions with 3,5-pyrazoledicarboxylic acid. The Al-PzDC material prepared by this invention achieves an adsorption capacity of 43.99 cm⁻¹ for methane at 273 K and 1 bar. 3 The adsorption capacity showed no significant decrease after 10 adsorption-desorption cycles, demonstrating excellent separation performance for methane and nitrogen mixtures. The metal-organic framework material synthesis method provided by this invention is simple, mild, and environmentally friendly, showing promising application prospects in the adsorption and separation of methane and nitrogen in coalbed methane.

The utility model relates to a destaticizing device for hollow glass production, which comprises a cleaning and discharging mechanism, the cleaning and discharging mechanism is used for receiving and conveying cleaned and dried glass sheets, two ion wind bars are longitudinally arranged at the inlet end of the cleaning and discharging mechanism at intervals, and the ion wind bars are vertically arranged. The ion wind bar is provided with a plurality of ion needles and an air outlet, the ion wind bar is connected with a high-voltage power supply through a high-voltage wire, the ion wind bar is provided with an air source interface, and the air source interface is connected with an air source through an air inlet pipe. The device has the advantages of being reasonable in structural design, capable of removing static electricity on the glass sheet in time, high in static electricity removing efficiency, beneficial to improving the production quality of hollow glass and the like.

The present application relates to the technical field of edible salt, and particularly relates to a green edible salt production process. Technical problems are as follows: the existing technology causes the caking problem of edible salt in the production, transportation, storage and use process due to the zero addition of anti-caking agent. A technical solution is as follows: a green edible salt production process comprises the following steps: A: secondary cooling of finished salt before packaging; the finished salt is sent into a secondary cooler after coming out of a self-made salt device dryer, and the temperature of the finished salt is reduced to close to room temperature through circulating desalted water; B: screening of the finished salt particles cooled in step A, and selection of the oversize material with relatively large particle size and not easy to caking; C: addition of iodine agent into the finished salt cooled and screened in step B; D: storage of the finished salt in step C for a period of time before packaging; E: packaging by using a packaging material with strong blocking property and good sealing performance.

The utility model relates to PVC section bar technical field, and disclose a kind of PVC section bar milling groove tool, including workbench, the top of workbench is provided with recess, the inner wall of recess is fixedly connected with support leg, the top of support leg is fixedly connected with placing plate, cleaning mechanism is provided on the workbench, and the cleaning mechanism includes side plate, guide rail, linear motor, telescopic link, mounting bracket, first spring, cleaning roller.The utility model linear motor drives cleaning roller to move along section bar surface, cooperate the elastic compression of first spring, ensure that cleaning roller and section bar surface are closely attached, effectively wipe water vapor and attached impurity, avoid milling when chippings because of damp agglomerate and block cutter, hot air blower is sent hot air to the section bar surface after cleaning by air outlet pipe, accelerate residual water vapor evaporation, reduce section bar surface moisture content, solve chippings sticking problem from root when milling groove in damp environment, improve milling groove precision.

This disclosure provides a polishing pad and a final polishing apparatus. The polishing pad includes: a substrate; and a deformable unit disposed on the substrate. The deformable unit is capable of switching the polishing pad between a first shape mode and a second shape mode by deformation. In the first shape mode, the polishing surface of the polishing pad has grooves, and in the second shape mode, the polishing surface of the polishing pad is flat.

The invention discloses distributed photovoltaic panel surface cleaning equipment, and relates to the technical field of panel surface cleaning, and the distributed photovoltaic panel surface cleaning equipment comprises a composite mechanism. According to the distributed photovoltaic panel surface cleaning equipment, through the design of a composite mechanism, a first electric push rod slides on the inner side of a panel surface sliding groove, a brush block is controlled to be attached to the surface of a photovoltaic panel through lifting of the first electric push rod, and the brush block slides on the surface of a square plate in a reciprocating mode, so that the effect of cleaning impurities and dust through friction is achieved, and the impurities and dust on the surface are reduced; and when stubborn impurities exist on the plate surface, a rotating block is controlled by a motor to drive a brush block to rotate, so that the friction force is improved, the number of times of rotary cleaning is increased, and the cleaning effect is improved. The plate surface is kept clean, and the normal operation of equipment is maintained.