65results about How to "Easy to spread" patented technology

The invention discloses efficient closed-pore high-stability slurry and a preparation method thereof, a lithium ion battery and electric equipment, and relates to the technical field of lithium batteries, the efficient closed-pore high-stability slurry comprises water, core-shell microspheres, a heat stabilizer, a wetting auxiliary agent and a dispersing auxiliary agent, the core-shell microspheres comprise first core-shell particles and second core-shell particles, the core of the first core-shell particle is a mixture of a heat conducting agent and a flame retardant, or a composition of any one or more of the heat conducting agents, and the shell of the first core-shell particle is a mixture of a thermosensitive accelerator and a thermosensitive main agent, or a composition of any one or more of the thermosensitive accelerators; the core of the second core-shell particle is a mixture of a heat conducting agent and a flame retardant, or a composition of any one or more of the flame retardants, and the shell of the second core-shell particle is a mixture of a thermosensitive accelerator and a thermosensitive main agent, or a composition of any one or more of the thermosensitive main agents. The material has the advantages of early quick and synchronous response to temperature change, excellent thermal stability and excellent flame retardancy.

The invention discloses an aviation spray auxiliary agent for improving the rain wash resistance of plant protection fog drops and application of the aviation spray auxiliary agent. The invention provides a composition for plant protection aviation spraying. The composition comprises sodium dodecyl benzene sulfonate and polyethylene glycol monostearate. The invention also provides a plant protection aviation spray auxiliary agent which comprises the composition. The plant protection aviation spray auxiliary agent provided by the invention can significantly improve the rain wash resistance of fog drops on crop leaves during aviation pesticide application, thereby solving the key problems that the window period of pesticide application in rainy seasons in the south is short, and the pesticide liquid is very easy to wash away by rain water due to frequent heavy rainfall.

The invention discloses a green liquid salt and a production process thereof, and relates to the technical field of liquid salts.The production process comprises the steps that a metal organic framework is taken and added into a Tris-HCl buffer solution, uniform mixing is conducted, dopamine hydrochloride is added, stirring, centrifuging, washing and drying are conducted, and the metal organic framework of a core-shell structure is obtained; the preparation method comprises the following steps: adding sulfonated polysulfone, a core-shell structure metal organic framework and polyvinylpyrrolidone into N-methyl pyrrolidone, stirring until the materials are completely dissolved, and carrying out ultrasonic treatment to obtain a membrane casting solution; taking the membrane casting solution, pouring on a glass plate, and performing blade coating, water bath, phase inversion and soaking to obtain a nanofiltration membrane; taking brine, adding modified charcoal, adsorbing, and performing ultrafiltration through an ultrafiltration membrane to obtain ultrafiltration filtrate; and carrying out nanofiltration on the ultrafiltration filtrate through a nanofiltration membrane to obtain liquid salt. Sulfonic acid groups introduced into the nanofiltration membrane are negatively charged, and the interception rate of the nanofiltration membrane on sulfate ions, calcium ions and magnesium ions is improved through electrostatic interaction and size screening.

The invention discloses a preparation method of ethylhexyl palmitate, and relates to the technical field of ethylhexyl palmitate. According to the method, firstly, isooctanol is gasified and then introduced into a methyl palmitate solution, ethylhexyl palmitate is prepared through transesterification, gaseous feeding can improve the instantaneous concentration of alcohol in a liquid phase, the reaction is promoted to be carried out in the positive direction, the reaction rate is increased, meanwhile, methanol generated through the transesterification method can be gasified and taken out of a system, and the yield of ethylhexyl palmitate is increased. Forward proceeding of the reaction is further promoted, so that the reaction is more thorough; secondly, chromium salt is used as a metal source precursor and a 2-sulfo-4, 4 '-biphenyldicarboxylic acid ligand to synthesize a catalyst, a biphenyl group in the ligand provides rigid and hydrophobic large pore channels and provides a local high-concentration reaction environment, gaseous isooctanol can be easily diffused into the pore channels of the catalyst and is in contact with enriched methyl palmitate, and the reaction efficiency is improved; and sulfonic acid groups uniformly distributed in the ligand serve as solid superacid, strong acid sites are provided, and the production efficiency is improved.

The invention discloses a tin-zinc-copper powder ultrafine powder batch preparation process, and relates to the technical field of metal powder preparation, and the tin-zinc-copper powder ultrafine powder batch preparation process comprises the following steps: dissolving tin salt, zinc salt and copper salt in deionized water, adding a complexing agent, and uniformly mixing to obtain a mixed metal salt aqueous solution; dissolving a rosin-based polyamine hyperbranched dispersant in an organic solvent to serve as an oil phase; slowly adding a mixed metal salt aqueous solution into the oil phase, and uniformly dispersing to obtain a water-in-oil microemulsion system; dropwise adding a reducing agent solution, and continuously carrying out heat preservation reaction for 0.5-3 hours after dropwise adding is finished, so as to obtain slurry containing alloy particles; and carrying out demulsification treatment, centrifugal separation, repeated washing and drying to obtain the surface-modified tin-zinc-copper superfine powder. Superfining of particles is achieved through confinement growth, synchronous co-deposition of multi-component elements is guaranteed, a homogeneous alloy phase is formed, component segregation is avoided, and a protective layer formed on the surface of the powder in situ endows the material with excellent oxidation resistance and good weld-aid wettability.

The application provides a UV white ink and a preparation method thereof. The preparation raw materials of the UV white ink include, in parts by weight, 3-15 parts of silicone-modified acrylate prepolymer, 30-90 parts of monofunctional monomer, 1-10 parts of bifunctional monomer, 3-10 parts of photoinitiator, 1-15 parts of titanium white, 0.1-5 parts of dispersant and 0.1-5 parts of auxiliary agent. The silicone-modified acrylate prepolymer is used to improve the flexibility, smoothness and water resistance of the ink layer, and the specific functional monomer compound system is used to inhibit the curing shrinkage and enhance the adhesion, so that the UV white ink with excellent comprehensive performance is obtained, and is suitable for the inkjet printing of silica gel labels.

The present application relates to the technical field of metal precision forming, and particularly relates to a copper micro-channel liquid cooling radiator and a liquid forming manufacturing method thereof, which comprises the following steps: S1, a soluble ceramic core with a micro-channel negative structure is prepared by using a template method, and the surface of the core is pretreated to reduce the wetting angle; S2, the pretreated core and an outer mold sprayed with a release agent are assembled to form a casting cavity; S3, copper liquid subjected to flowability improvement treatment is smelted and cast in a vacuum or a protective atmosphere; S4, directional solidification of the casting is guided by using multi-section induction heating combined with online temperature control; and S5, the core is removed by chemical dissolution. Through the synergy of bidirectional wetting control, a template method soluble core and directional solidification technology, the present application realizes high-quality and low-cost batch manufacturing of a complex three-dimensional micro-channel copper radiator, and the prepared radiator has a complete micro-channel structure and high internal density, and is suitable for high-power heat dissipation scenes in the fields of high-performance computing, power electronics, new energy and the like.

The application discloses a pipeline corrosion inhibitor film forming device based on an electret composite lining, which comprises a pipeline, a water injection nozzle arranged in the pipeline, and an electret composite lining assembly arranged on the inner wall of the pipeline below the nozzle; the electret composite lining assembly is composed of an electret layer close to the inner wall of the pipeline and a protective layer covering the electret layer. The electret composite lining is adopted to form a stable electrostatic field and polarization effect near the wall, so that the enrichment, spreading and updating efficiency of the fog drops containing the corrosion inhibitor close to the wall are improved, and the wall film coverage and residence time are improved.

The application discloses a kind of service concrete penetration type anti-freezing protective material and preparation method thereof, belong to concrete protection technical field.The composition of the protective material is: organic silicon modified penetration enhancement component 30~60 parts, nano-crystalline component 10~30 parts, microbial self-repairing component 5~20 parts, composite silane coupling agent 2~8 parts, penetration accelerator 1~5 parts, stabilizer 0.5~3 parts, defoaming agent 0.1~1 part, water 10~50 parts.The application constructs "hydrophobic barrier-crystallization densification-microbial self-repairing" triple synergistic protection system, solves the technical bottleneck that existing concrete protective material penetration depth is shallow, long-acting protection stability is poor, has no active crack repair capacity, construction is complicated, and on-site adaptability is poor.The application preparation process is simple, product performance is stable, cost-effective, can long-acting improve the frost resistance of concrete structure in severe cold area.

The present invention relates to a method for modifying the wettability of a carbon allotrope, comprising the steps of: preparing a carbon allotrope; a step for preparing a solvent capable of inducing the generation of hydrophilic radicals or hydrophobic radicals; a step for bringing the carbon allotrope into contact with the solvent; a step of supplying energy to the solvent using an energy supply source; and a step of generating a hydrophilic radical or a hydrophobic radical of the solvent by the energy supplied to the solvent, the generated radical being bonded to the end of the carbon allotrope.

The application discloses a meteorological disaster early warning and calling method and system. The calling method generates early warning information by acquiring and processing meteorological monitoring data, matches the corresponding calling objects of the risk area and generates a calling object list, determines and dynamically adjusts the total time limit of calling according to the disaster grade, and generates a calling instruction. The calling instruction is executed to send the calling information and record the sending state, receive and analyze the feedback information to obtain the feedback result containing the positive feedback state set and other states. Based on the sending state and the feedback result, the retry object is screened, the retry calling instruction is generated and executed in a cycle until the preset closed-loop condition is met, and the calling closed-loop record is generated. The application also discloses a corresponding system for implementing the above method, which can effectively improve the accuracy and response efficiency of meteorological disaster early warning and calling, realize the whole-process traceable closed-loop management and control, adapt to the dynamic change characteristics of extreme meteorological disasters, and maximize the reduction of disaster risk.

The application relates to the field of welding technology, and particularly discloses a water-soluble flux and a preparation method thereof. The water-soluble flux comprises the following raw materials in parts by weight: 6-12 parts of a borate ester covalent activator; 3-8 parts of cucurbituril hydrate; 0.01-2 parts of an inhibitor; 1-3 parts of a modified graphene quantum dot solution; 1-5 parts of a cyclic ether solvent; 0.5-2 parts of a metal-organic framework material containing mercapto groups; and 68-88.5 parts of deionized water. The modified graphene quantum dot solution is obtained by modifying graphene quantum dots with dioctadecyldimethylammonium chloride. The flux of the application can effectively solve the problem of water residue in the later stage after the activator is decomposed and volatilized in the early stage of welding by combining the water-soluble flux with the cyclic ether solvent, thereby reducing the problems of virtual welding, bubble defects and the like of the welding points, and effectively improving the strength and reliability of the welding points.

According to the method for filling the interlayer dielectric layer in the high aspect ratio structure, heavy inert gas Kr is used as a diffusion additive in the reaction process of SiH4 and O2, and the molecular / atomic mass of SiH4 and O2 is smaller than that of the inert gas Kr, so that the heavy inert gas Kr can improve the molecular diffusivity of SiH4 and O2 at the same reaction temperature, and the diffusion performance of SiH4 and O2 is improved. SiH4 and O2 are more easily diffused to the deep part of the high-aspect-ratio structure to react, filling of the high-aspect-ratio structure is facilitated, cavities are not easy to form, in addition, heavy inert gas Kr can preferentially impact precursor gas molecules on the surface of the upper portion of the step, falling of the precursor gas molecules is accelerated, and the performance of the high-aspect-ratio structure is improved. Therefore, the staying time of precursor gas molecules on the upper surface of the step is shortened, and the step coverage rate of the formed interlayer dielectric layer is improved.

The utility model discloses a kind of neutralization reaction devices for aspartame purification, including reaction component, the upper portion of reaction component is equipped with make-up component, and make-up component is close to the side of reaction component middle axis and is provided with protective box, the inside of protective box is installed with first rotating component, and the rear end of first rotating component is connected with transmission component, first rotating component includes rotating big dish, first rotating shaft and first bearing, and the front end of rotating big dish is connected with first rotating shaft, the outside of first rotating shaft is connected with first bearing. Compared with the existing ordinary neutralization reaction device, the equipment can adjust transmission ratio, the proportion of material discharging is adjusted by the change of transmission ratio, so that the proportion of material adding is more accurate, the equipment can make material better spread by stirring structure, so that the mixing of material is more uniform.

This invention relates to the field of high-strength steel surface treatment technology, and particularly to a surface treatment liquid, a steel plate for hot stamping without shot blasting, hot stamped parts, and a method for preparing the same. The invention provides a surface treatment liquid, with a total mass of 100 parts, comprising 5-30 parts of water-based resin, 1-60 parts of nano-aluminosilicate and / or modified nano-aluminosilicate, 1-10 parts of surfactant, and the balance being water; the nano-aluminosilicate and / or modified nano-aluminosilicate simultaneously contains Si and Al elements. Applying the surface treatment liquid provided by this invention to the surface of a metal-coated hot stamping steel plate results in a uniform and controllable oxide layer on the surface of the parts obtained after hot stamping, eliminating the need for an additional shot blasting process and avoiding related problems associated with shot blasting, while also meeting the requirements for subsequent welding and electrophoresis.

The utility model discloses a box-type lithium battery pack structure, and aims to provide a box-type lithium battery pack structure which is favorable for improving the qualified rate of products and comprises a battery shell, the lithium battery pack is mounted in the battery shell; the electrode terminal is detachably connected with the battery shell, a locking piece is detachably connected to the electrode terminal, one end of the electrode terminal is located in the battery shell, the other end of the electrode terminal is located outside the battery shell, a cable is arranged on the lithium battery pack, and the lithium battery pack is inserted into the end, located in the battery shell, of the electrode terminal through the cable. After being fixed by the locking piece, the electrode is electrically connected with the electrode terminal; and the communication acquisition terminal is detachably connected with the battery shell and is electrically connected with the lithium battery pack. The battery fixing device has the beneficial effects that tin soldering is replaced by a locking and fixing mode of the locking piece, so that various bad problems caused by the tin soldering are avoided, the quality of the battery is favorably improved, and the purpose of favorably improving the product percent of pass is achieved.

The invention provides a polymer devolatilization method, and belongs to the technical field of polymer processing. The polymer devolatilization method comprises the following steps: adding a devolatilization auxiliary agent into a mixing section of an extruder, connecting the mixing section with a first ultrasonic generator, forming first ultrasonic waves in the mixing section by the first ultrasonic generator, and uniformly mixing the devolatilization auxiliary agent and a polymer melt under the action of the first ultrasonic waves so as to promote volatile components to be separated from the polymer melt. According to the polymer devolatilization method provided by the invention, more gas nuclei are formed in the mixing section through the ultrasonic cavitation effect, and the uniform mixing of the auxiliary agent and the polymer melt in the mixing section is enhanced by utilizing the ultrasonic turbulence effect, so that the devolatilization effect is improved, and the volatile component content in the devolatilized polymer is reduced.

The application relates to the technical field of dental implants, in particular to a trans-zygomatic implant and a processing technology thereof, and the processing technology comprises variable-distance multi-stage sand blasting and acid etching surface treatment on an anchoring part with threads of the trans-zygomatic implant and electrochemical polishing surface treatment on an extension part without threads. The trans-zygomatic implant is treated by variable-distance multi-stage sand blasting combined with acid etching, so that a uniform micron-level rough base and a multi-stage micropore structure can be formed on the titanium surface, osteoblast adhesion and differentiation are facilitated, the early bone combination speed is accelerated, the combination strength is improved, the early implant loosening risk is reduced, the extension part of the trans-zygomatic implant is treated by electrochemical polishing, a smooth surface can be obtained, plaque adhesion and bacterial colonization are greatly reduced, the implant peri-implantitis risk is reduced, and soft tissue adhesion is promoted; the dual optimization of bone anchoring and tissue adhesion is realized, and the long-term function and health of the trans-zygomatic implant under complex stress are guaranteed.

This invention discloses a method for electromagnetic synergistic oxidation of organic matter in wastewater. The method involves placing an electrolyte, an auxiliary oxidant, and organic wastewater containing polycyclic aromatic hydrocarbons and antibiotics in an electrolytic cell, and operating at a voltage of 1–12V and a current density of 1–20 mA / cm². 2 This invention oxidizes polycyclic aromatic hydrocarbons (PAHs) and antibiotic pollutants under specific conditions, achieving their degradation and mineralization. Simultaneously, the invention provides an electrolytic cell. The method and apparatus of this invention can generate a large amount of active material through an ultra-large specific surface area cathode. A series of electromagnetic synergistic chain reactions achieve full contact between pollutants and active materials, while also recovering valuable ions from wastewater, thus achieving the purpose of purifying organic wastewater. This solves the technical problems of long reaction time, high energy consumption, and low mineralization rate in existing technologies.

This invention discloses a carbon fiber composite material for rail transit vehicles and its preparation process, relating to the field of carbon fiber composite material technology. The method uses carbon fiber cloth as a matrix, depositing a polydopamine layer on its surface, then loading graphene epoxide, and using the polydopamine layer to grow manganese dioxide nanosheets in situ to obtain a carbon fiber matrix. Epoxy resin is then prepolymerized by pouring it into a mold, and the carbon fiber matrix is ​​laid flat in the prepolymerized resin. Epoxy resin is then poured in again, and the mixture is heated and cured under a pressure of 45–50 N to obtain the carbon fiber composite material. The carbon fiber composite material prepared by this method exhibits excellent mechanical properties, with improved tensile strength and interlaminar shear strength, and can be widely used in vehicles, ships, and other fields, demonstrating high practicality.

This application discloses a ceramic trademark glaze and its preparation method. The trademark glaze comprises 50-60% low-temperature frit; 5-10% zinc oxide; 20-25% zirconium silicate; 8-12% calcined kaolin; 1-2% sodium carboxymethyl cellulose; 0.5-1.0% sodium tripolyphosphate; and 1-5% pigment. The trademark glaze exhibits excellent printing performance, good thixotropic properties, smooth screen printing, and clear line printing without breaks or ink bleeding; it can print clear lines as narrow as 0.3mm. The firing effect is ideal, with pure and vibrant colors and high contrast with the white base glaze; the glaze surface is smooth and even, with no edge curling. It has strong environmental resistance, high hardness after firing, and is resistant to acids and alkalis, maintaining clarity even in harsh outdoor environments for extended periods. The process is widely adaptable, suitable for application to green or unglazed ceramic bodies, and has good compatibility with conventional electrical porcelain firing processes.

The invention relates to the technical field of new energy, in particular to a composite current collector assembly and a preparation method thereof, a pole piece assembly and a preparation method thereof and a battery. The composite current collector assembly comprises an insulating layer, a conductive layer and a weld-aid coating, the conductive layer is located on at least one side of the insulating layer, the conductive layer comprises an electrode active area and a tab blank area connected with the electrode active area, and the weld-aid coating is located on the conductive layer corresponding to the tab blank area. The raw materials of the weld-aid coating comprise modified rosin, organic acid, organic amine, a wetting agent, a surface active agent and a corrosion inhibitor. By selecting the raw materials of the weld-aid coating, the traditional transfer welding procedure can be omitted, the problem that the welding process is tedious is solved, and the welding quality is good.

This specification provides a system and apparatus for constructing an animal model of spinal glioma, relating to the field of intelligent medicine. The system, executed by a robot, includes: a puncture point localization module configured to locate the highest point of the spine in its natural state as the puncture point; a spine exposure module configured to locate points at a first distance above and below the highest point of the spine along the spinal direction, forming a line segment; controlling the cutting of the dorsal skin of the animal sample along the line segment to expose the spine; a puncture needle insertion module configured to control the puncture needle to penetrate the puncture point perpendicular to the vertebral interface at a first speed until the puncture needle penetrates the spinal cord tissue; controlling the puncture needle to retract a third distance and pause for a first time; a cell suspension injection module; and a puncture needle withdrawal module configured to control the withdrawal of the puncture needle, thus obtaining the animal model. This application provides insights for clinical research on the molecular characteristics of spinal glioma and the identification of potential therapeutic targets.

The utility model discloses a tailoring device for garment processing. The tailoring device comprises a tailoring frame, a positioning frame is fixedly connected to one side of the top end of the cutting frame, an adjusting rod is rotatably connected to the middle of one side of the positioning frame, a pressing block is slidably connected to one side of the top end of the positioning frame, and a locking plate is rotatably connected to the middle of the lower end of the pressing block; wherein one end of the rotating shaft is fixedly connected with a rotating frame, one side of the rotating frame is slidably connected with a pressing roller, one end of the pressing roller is slidably connected with a moving block, and the middle of the moving block is in threaded connection with a two-way screw rod; a supporting block is arranged on one side of the inner wall of the tailoring frame, the upper end of the supporting block is in lap joint with a tailoring plate, separation of a pressing roller and the tailoring plate is conveniently achieved through rotation of a rotating frame at a positioning frame, the tailoring plate is pushed to ascend through an air cylinder, rapid replacement of the tailoring plate is achieved, and the garment tailoring device can be rapidly put into use again conveniently. The purpose of improving the tailoring efficiency during garment processing is achieved.

An electrode (12) and a storage device (11) are provided to reduce the decrease in fluidity during manufacturing. The electrode contains an oxide-based solid electrolyte, which is a powder (19) with a garnet-type crystal structure. The powder has a cubic crystal system and a lattice constant of 1.3 nm or more. The distance between atoms octahedral and dodecahedral coordinated with oxygen in the unit lattice of the powder can be 0.588 nm or more. The solid electrolyte may contain Li, La, Zr, Mg, and Sr as components. The storage device contains the electrode.

This invention provides a base coating slurry for a current collector, a base coating, a current collector, a method for preparing the same, and a battery. The base coating slurry comprises a conductive material and a binder; wherein the conductive material includes metallic conductive materials and / or alloy conductive materials, and the binder comprises a binder, a coupling agent, and a solvent. The base coating slurry provided by this invention improves the battery's safety performance, energy density, and cycling performance, achieving a balance between battery safety and electrical performance.

This invention discloses a 5052 aluminum alloy cavity for semiconductor devices and its preparation method, relating to the field of aluminum alloy material technology. Specifically, it includes the following steps: S1: First, the 5052 aluminum alloy ingot undergoes a two-stage homogenization treatment, followed by a three-stage free forging process, and finally, spray cooling and air drying to obtain a shaped cavity substrate; S2: After plasma cleaning, the shaped cavity substrate is subjected to magnetron sputtering technology to sequentially deposit a transition layer, a barrier layer, and a functional layer on its inner surface to obtain the 5052 aluminum alloy cavity for semiconductor devices. The 5052 aluminum alloy cavity prepared by this invention can greatly ensure the stability and purity of the prepared aerospace semiconductors, meeting the manufacturing needs of high-performance chips for aerospace applications, and is of great significance.

This utility model relates to the field of commodity sorting technology, specifically a 3D seeding type automatic sorting machine, including a fixed frame and a three-axis automatic sorting mechanism. The three-axis automatic sorting mechanism is fixedly installed on the fixed frame. First support columns and second support columns are provided on both sides of the three-axis automatic sorting mechanism. A drive component is provided on the second support column. Several receiving frames and several receiving boxes are provided between the first and second support columns. Rotating columns are provided on both sides of each receiving box. Different rotating columns are rotatably connected to the first and second support columns respectively. Gears are provided on the rotating columns rotatably connected to the second support columns. Slots are provided on both sides of each receiving box to reduce accumulation and improve the space utilization of the receiving box.

The utility model relates to the technical field of corn cultivation, and discloses a corn seed experiment comparison cultivation box which comprises a box shell, two blocking doors are hinged to one side of the box shell, a first threaded hole is formed in one side of each blocking door, a first stud is in threaded connection with the interior of each first threaded hole, and a rotary button is fixedly connected to one end of each first stud. A telescopic assembly is arranged in the box shell; the telescopic assembly comprises two limiting grooves, the two limiting grooves are formed in the two sides of the inner wall of the box shell, the interiors of the limiting grooves are slidably connected with limiting blocks, and one sides of the limiting blocks are fixedly connected with cultivation boxes. The cultivation box can automatically stretch out and draw back conveniently, the steel wire rope is used for driving the connecting block to drive the cultivation box to automatically slide out of the box body, close-range observation of the corn growth state is facilitated, sowing, irrigation and fertilization operation is facilitated, experiment convenience is improved, the height of the box body can be adjusted conveniently, and the space of the box body can be dynamically adjusted along with growth of corn plants. The cultivation requirement of the corn growth period is met.

The invention provides an outer cylinder assembly and clothes processing equipment. The outer cylinder assembly comprises an outer cylinder and a condensation air duct, a drying air outlet is formed in the cylinder wall of the outer cylinder, and the condensation air duct is arranged on the rear side of the outer cylinder and comprises an air duct air inlet communicating with the drying air outlet; the condensation air channel integrally extends in the vertical direction, and an upper condensation area and a lower condensation area which are oppositely arranged in the vertical direction are arranged in the condensation air channel. The multiple first flow guide ribs are sequentially arranged at intervals in the extending direction of the condensation air channel. The width of the first flow guide rib located in the upper condensation area is larger than that of the first flow guide rib located in the lower condensation area; the wide ribs of the upper condensation area enhance the flow guiding and disturbing effects, condensate water is promoted to adhere and spread, the heat exchange time of drying airflow and condensate water is prolonged, and the dehumidification effect is improved. The narrow ribs of the lower condensation area avoid unnecessary flow resistance, ensure the stability of the flow of the drying airflow, guide the condensate water to be discharged smoothly and effectively prevent the condensate water from being brought into a subsequent air duct by the airflow.