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31results about How to "Increase evaporation rate" patented technology

A rotary sludge high-efficiency drying equipment

A rotary sludge high-efficiency drying device belongs to the field of sludge drying technology. The invention includes a base, a support seat fixedly installed on the top of the base, and a drying cylinder rotatably mounted inside the support seat. A sludge crushing mechanism is installed inside the drying cylinder. A drive seat is slidably mounted on the top of the base, and a feed cover is fixedly connected to the top of the drive seat. A discharge port is rotatably connected to the side wall of the drying cylinder, which, after being rotated and unlocked, is used to discharge the dried sludge. A cone-shaped nozzle periodically pierces and retracts from the sludge blocks located at the bottom of the drying cylinder. This piercing breaks the hard outer shell of the sludge, creating pores and cracks inside the sludge. High-temperature hot air can directly penetrate into the interior of the sludge blocks through these pores and cracks, significantly increasing the heat transfer contact area, improving the moisture evaporation rate in the initial drying stage, and shortening the residence time of the sludge in the drying cylinder, thereby improving the overall drying capacity and efficiency of the equipment.
Owner:济宁华屹智能装备有限公司

Converter IGBT evaporative cooling system and control method

According to the variable-flow IGBT evaporative cooling system and the control method provided by the invention, dryness online calculation and closed-loop control based on pressure and density signals are introduced into the IGBT evaporative cooling system, so that accurate sensing and active regulation and control of a phase change state of a cooling medium are realized; therefore, it is ensured that the IGBT module is always in a gas-liquid mixing environment with the optimal heat exchange efficiency, the efficient heat dissipation capacity of phase change latent heat is fully utilized, local overheating or temperature fluctuation caused by excessive evaporation or insufficient liquid phase is avoided, the heat dissipation uniformity, stability and energy efficiency are fundamentally improved, and the heat dissipation efficiency is improved. The self-adaptive capacity of the system to different load working conditions is enhanced, and the guarantee is provided for long-term reliable operation and service life prolonging of the IGBT module through direct control over the key state quantity of dryness.
Owner:ONOFF ELECTRIC CO INC

Three-time air supply methanol hydrogen production combustion evaporator

The invention provides a three-time air supply methanol-to-hydrogen combustion evaporator which comprises a heat exchanger, a combustion evaporator body, a combustion chamber and a three-time air supply device, the air outlet end of the heat exchanger communicates with the three-time air supply device, and the three-time air supply device is arranged at the top of the combustion chamber. The tertiary air supply device blows flames generated during combustion of the combustion chamber to the combustion evaporator, the heat exchanger is used for preheating normal-temperature air, and the tertiary air supply device supplies air to the combustion chamber. The three-time air supply design is adopted, so that combustion is more complete, the flame temperature distribution is uniform, the heat efficiency is greatly improved, and fuel waste is reduced. Through gas preheating and waste heat recovery, external energy input is reduced, the operation cost of the system is remarkably reduced, and the energy-saving and environment-friendly trend is met. The high-temperature gas guide pipe guides waste heat back to the heat exchanger, heat energy recycling is achieved, the overall heat energy utilization rate is increased, and emission loss is reduced.
Owner:WEIFANG SAERPA ENVIRONMENTAL PROTECTION TECH CO LTD

A float, a floating device and an evaporation prevention system

ActiveCN224661005Uincrease evaporation rateeasy to lose
The application provides a floating disc, comprising a first structure part and a second structure part which are integrally connected, the first structure part and the second structure part are respectively arched in directions away from each other, so that the outer surfaces of the first structure part and the second structure part form cambered surfaces, and the inner surfaces of the first structure part and the second structure part enclose a closed cavity. The floating disc provided by the application has a structure with a closed cavity, can float on the water surface, plays a shielding role on the water surface, and further avoids sunlight from irradiating the water surface to accelerate the evaporation rate of water on the water surface, is beneficial to reducing the water evaporation rate, reducing water loss, and the floating setting of the floating disc on the water surface can also adsorb the evaporated water vapor, is beneficial to condensation and backflow of the water vapor to the water surface, avoids loss of the water vapor, further reduces the loss of water, and is beneficial to reducing the water loss amount.
Owner:STATE GRID XINYUAN +1

Preparation method and application of degradable hydrogel solar evaporator with surface microstructure

PendingCN121778815AEnvironmentally friendly disposal methodssustainable disposalWater treatment parameter controlAdditive manufacturing apparatus
The invention discloses a preparation method and application of a degradable hydrogel solar evaporator with a surface microstructure, and relates to the technical field of interface evaporation materials. The invention aims to solve the problems that an existing solar evaporator is low in evaporation efficiency, difficult to recycle after alkaline wastewater treatment, easy to form solid wastes and lack of an in-situ degradation environment-friendly scheme. Functional groups capable of being subjected to hydrolysis reaction under alkaline conditions are introduced into a hydrogel network, and the evaporator with a specific geometric structure is constructed by utilizing a photocuring 3D printing technology, so that the evaporator keeps structural stability and high evaporation performance in a use stage, and can be degraded according to preset conditions in an alkaline environment; therefore, the evaporator can disappear controllably after being used. According to the method, the photocuring 3D printing technology is combined, accurate design of the macroscopic shape and the microstructure of the evaporator is achieved, the surface microstructure of the evaporator is one or more of a spherical structure, a prismatic table structure and a tree-shaped structure, and the evaporation rate can be increased.
Owner:HARBIN INST OF TECH

Pulsed laser based hierarchical porous structure aerogel and preparation method and application thereof

ActiveCN116272701Bhigh strengthGuaranteed macro formabilityFreeze-dryingCross linker
The application discloses a kind of multi-level pore structure aerogel based on pulsed laser and preparation method and application, belong to solar energy conversion and utilization technical field.It is inorganic material containing silicon nano as freezing base element, biomass polymer is crosslinking agent, deionized water is solvent, three are uniformly mixed and stand to form hydrogel after solidification, then freeze to form ice crystal, then remove ice crystal to form micron-nanometer level porous aerogel using freeze drying technology;Finally, the micron-nanometer level aerogel obtained is customized punched using pulsed laser technology Millimeter hole, finally obtain millimeter-micron-nanometer multi-level pore aerogel.The application first uses the high single-pulse energy of laser, and the customization optimization regulation and control of millimeter level hole of aerogel is not limited by the size and shape of template, and only through simple programming can realize the diversified design of millimeter hole, which is simple, stable in process and good in reproducibility.
Owner:OCEAN UNIV OF CHINA

High-efficiency solar water evaporator and preparation method and application thereof

This invention belongs to the field of solar water evaporation technology, and discloses a high-efficiency solar water evaporator, its preparation method, and its application. The preparation method includes the following steps: (1) Clean and dry coconut fibers, take multiple coconut fibers and weave them into a rope, and then cut them into coconut fiber ropes of the same length; (2) Embed the above-mentioned coconut fiber ropes of the same length into a sponge in an m×n array, wherein the lower end of the coconut fiber rope is flush with the bottom surface of the sponge, while its upper end protrudes from the top surface of the sponge by a certain height; (3) Immerse the part of the above-mentioned coconut fiber rope array protruding from the top surface of the sponge in a sodium alginate solution containing carbon black for surface coating treatment, and then take it out and air dry naturally to obtain a high-efficiency solar water evaporator based on a coconut fiber array. This invention has the characteristics of wide material sources, low cost, simple evaporator construction method, and high water evaporation rate, and has better prospects for large-scale preparation and commercial application.
Owner:HAINAN UNIV

Rotary-evaporation rate coordinated control method and system based on deposition distribution model

The present application relates to the technical field of vacuum coating, in particular to a rotating-evaporation rate collaborative control method and system based on deposition distribution model, which establishes a deposition process model containing an evaporation source distribution model, a substrate kinematics model and a cumulative dose model; based on the model, a rotating speed ω(t) and an evaporation rate R i (t) are optimized variables, a collaborative control trajectory is generated through multi-objective optimization; the trajectory is executed; and deposition state data is obtained in real time during the coating process, compared with the model prediction value, the model parameters are corrected online and the trajectory is regenerated, realizing rotating-evaporation rate collaborative control. The method first promotes the rotating speed from a fixed parameter to an active control variable, optimizes it collaboratively with the evaporation rate, increases a completely independent control degree of freedom, fundamentally breaks through the uniformity and component precision upper limit of traditional single-variable control, and solves the poor uniformity problem of perovskite photovoltaic components in the prior art.
Owner:HUANENG CLEAN ENERGY RES INST +1

Industrial park high-salinity wastewater concentration system

ActiveCN224242746UIncrease spray evaporation rateincrease evaporation rateFeed water supplySteam/vapor condensersThermodynamicsWastewater
The utility model discloses a high-salinity wastewater concentration system for an industrial park. The high-salinity wastewater concentration system comprises a boiler dead steam discharge pipeline, a condenser, a heat exchange medium circulation pipeline, an indirect cooling tower and a wastewater evaporation concentration tower, a bottom air inlet of the indirect cooling tower is provided with a heat exchange tube grid; a heating pipe is arranged in the wastewater evaporation and concentration tower; the boiler dead steam discharge pipeline passes through the condenser hot end, and the heat exchange medium circulation pipeline passes through the condenser cold end; a heat exchange medium circulating pipeline communicated with an outlet of the cold end of the condenser is divided into two branches, one branch passes through the heat exchange pipe grid, the other branch passes through the heating pipe, and the two branches are converged and then communicated with an inlet of the cold end of the condenser. According to the utility model, boiler dead steam waste heat is used as a heat source for evaporation and concentration of wastewater in an industrial park, so that the wastewater concentration cost of the park is greatly reduced, cooling capacity can be provided for the dead steam cooling process, and energy conservation and emission reduction are realized.
Owner:HANGZHOU YUNZE ENVIRONMENTAL TECH CO LTD

Coating composite structure and coating apparatus

PendingCN122273762APrecisely control the drying time differencequick levelingPerovskite (structure)Air knife
This invention discloses a coating composite structure and a coating device. The composite structure includes at least a first structural component, a second structural component, and a third structural component. The first and second structural components are assembled to form a coating head liquid outlet, and the third structural component is assembled to form an air knife outlet. The second structural component is positioned between the first and third structural components. The coating head liquid outlet and the air knife outlet are located on the same side of the coating composite structure. The integration of coating and drying core functions is achieved through the coordinated installation of the first, second, and third structural components, replacing the independent components and support designs of the coating head and air knife in traditional coating equipment. This makes the coating and drying process flow structure more compact and significantly reduces the distance between the coating head liquid outlet and the air knife outlet, allowing for a closer connection between the perovskite solution coating and air curtain drying processes.
Owner:SHANGHAI PRECISION SYST INC +1

Inverted solar multi-stage evaporation water purifier

ActiveCN118458873BImprove water production efficiencyprevent precipitationThermodynamicsWater production
The embodiment of the present application discloses a kind of inverted solar multistage evaporation water purifier, comprising: multistage evaporator, multistage evaporator outside is provided with shell, the top of multistage evaporator is set to be connected with raw water pool by pipeline at opening, the lower surface of the multistage evaporator is provided with condenser.The multistage evaporator includes the heating disc of bottom layer, and a plurality of evaporation discs are arranged directly above the heating disc.The top of the heating disc and the evaporation disc is provided with hole.The top of the outer side of the heating disc and the evaporation disc is provided with baffle, and the bottom of the outer side of each evaporation disc is provided with sealing drainage cloth;The upper portion of each baffle and the bottom of sealing drainage cloth contact.The edge position of the heating disc and the evaporation disc is also provided with drainage outlet.The embodiment of the present application is high in water production efficiency, with self-cleaning function, frequent maintenance is not needed, energy utilization rate is high, and cost is low.
Owner:YUNNAN AGRICULTURAL UNIVERSITY

Plasma assisted spray drying apparatus

This utility model relates to the field of spray drying technology, specifically to plasma-assisted spray drying equipment, including a drying tower, a plasma generator, a first feeding hopper, a second feeding hopper, and a return pipe. The plasma generator is installed on the top of the drying tower, and a first high-pressure pump and a second high-pressure pump are respectively installed on the upper ends of both sides of the drying tower. This novel plasma-assisted spray drying equipment has a structure with two sets of atomizing nozzles inside the drying tower, which can spray from different angles and positions, greatly increasing the coverage area of ​​the spray inside the drying tower, allowing more material to come into full contact with the atomized droplets simultaneously, thereby accelerating the drying speed and improving the drying efficiency. Moreover, it has the function of collecting and reusing the exhaust gas after atomization drying, thus effectively improving the environmental friendliness of the spray drying equipment.
Owner:WUXI LISHENG POWDER TECH CO LTD

An MVR system based on thermal flash evaporation circulating rising film heat transfer

ActiveCN122097997BMatching narrow temperature difference evaporation characteristicsreduce consumptionVapor phaseMechanical engineering
This invention relates to an MVR system based on thermally stimulated flash evaporation and circulating rising film heat exchange, comprising a rising film heat exchanger, a vapor-liquid separator, a preheater, a thermally stimulated heater, and a throttling device. The preheater is connected to the thermally stimulated heater, and the condensate inlet of the preheater is connected to the condensate outlet of the rising film heat exchanger. The material outlet of the thermally stimulated heater is connected to the feed inlet of the rising film heat exchanger through the throttling device. The rising film heat exchanger is connected to the vapor-liquid separator so that the secondary steam in the rising film heat exchanger enters the vapor-liquid separator. The separated vapor phase is compressed and then fed back into the rising film heat exchanger as a heat source. The concentrated liquid flowing out of the vapor-liquid separator and the rising film heat exchanger is collected when its concentration is qualified; otherwise, it is pressurized and reinjected into the thermally stimulated heater for reuse. This invention can form a stable annular flow without relying on a large temperature difference, matching the narrow temperature difference heat transfer characteristics of the MVR system and significantly reducing the high-grade energy consumption of the rising film heat exchanger.
Owner:TIANJIN LEKE ENERGY SAVING TECH CO LTD +1

An immunohistochemistry humidifier with precise and stable internal humidity.

This application relates to an immunohistochemistry humidifier with precise and stable internal humidity. Specifically, an air pump and a humidity sensor are installed inside the humidifier. The air pump circulates air within the humidifier, causing the humidity inside to rise rapidly. The humidity sensor detects the humidity level inside the humidifier. Together, these two components enable the humidifier to quickly reach an ideal humidity environment, thereby improving the quality of sample processing and ensuring the accuracy of subsequent experimental or detection results.
Owner:GUANGXI JINKAI ZHUOYI BIOTECHNOLOGY CO LTD

A porous foam with a biomimetic lotus seedpod surface structure and its preparation

This invention proposes a porous foam with a biomimetic lotus seedpod surface structure and its preparation method, belonging to the technical field of photothermal conversion materials, to solve the technical problems of poor water evaporation performance and salt resistance in solar evaporators. This invention proposes a composite foam prepared using a combination of vacuum solution casting technology / salt template method / template-assisted technology, which simultaneously possesses a hemispherical pore structure on the surface and a honeycomb-like hierarchical pore structure in the lower layer. Benefiting from the unique surface and internal pore structure, the solar evaporator exhibits highly efficient and stable evaporation performance in NaCl solutions of different concentrations, high salt resistance, and good self-cleaning ability. This double-layer hierarchical porous composite foam has broad application prospects in wastewater treatment and seawater desalination. The preparation method has advantages such as simple process, convenient operation, controllable surface pore structure and internal pore morphology, and the ability to form evaporators with complex shapes.
Owner:FUJIAN UNIV OF TECH

Salt-tolerant hydrogel as well as preparation method and application thereof

The invention belongs to the technical field of solar evaporator hydrogel, and particularly relates to salt-resistant hydrogel as well as a preparation method and application thereof. According to the invention, sodium carboxymethyl cellulose is introduced as a first network, 3-[N, N-dimethyl-[2-(2-methylpropyl-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt and 2-hydroxyethyl methylacrylate are taken as monomers, deionized water is taken as a solvent, carboxylated multi-walled carbon nanotubes are taken as a photothermal conversion material, an ammonium persulfate aqueous solution is taken as an initiator, and N, N-dimethylformamide is taken as a second network; according to the preparation method, a second network is formed by taking a cross-linking agent N, N '-methylene bisacrylamide as a cross-linking agent, the hydrogel with salt resistance and high evaporation rate is obtained, the hydrogel has high evaporation rate (the evaporation rate is 3.79 kg m <-2 > h <-1 >) and good mechanical properties (the strain is 175% and the stress is 23 kPa), and the problem that existing evaporator hydrogel cannot give consideration to salt resistance, high evaporation rate and mechanical properties at the same time is solved.
Owner:JILIN INST OF CHEM TECH

Coating drying equipment

The invention relates to the technical field of battery processing equipment, in particular to coating and drying equipment. The coating drying equipment comprises an unwinding mechanism and a drying mechanism, the coating mechanism is positioned at the downstream of the unwinding mechanism; the drying mechanism comprises a heating tank, and the heating tank is positioned at the downstream of the coating mechanism; and the winding mechanism is positioned at the downstream of the heating tank. According to the coating drying equipment, the drying efficiency is high, and cracks are not prone to occurring on the surface of the catalyst layer.
Owner:JIANGSU HYDROGEN GUIDE INTELLIGENT EQUIP CO LTD +1

A solar evaporator with double-helix lateral structure and a preparation method thereof

This invention relates to the fields of interfacial water evaporation, seawater desalination, and wastewater treatment, and discloses a solar evaporator with a double-helix lateral structure. The evaporator includes a substrate with water absorption and transport functions. The outer wall of the substrate is provided with a double-helix structure capable of actively inducing micro-air convection. The double-helix structure is an axially extending double-helix groove or double-helix protrusion. During evaporation, the double-helix structure can actively disrupt the stagnant air boundary layer, enhance the outward diffusion of water vapor, and reduce the saturated vapor pressure of the lateral surface, thereby significantly enhancing the evaporation rate of the lateral surface. The core of this invention lies in a unique, functional macroscopic geometric structure, which is an integral part of the evaporator body, rather than an external attachment.
Owner:ZHEJIANG UNIV OF TECH

A superhydrophilic phase change latent heat release bifunctional composite coating material, its preparation method, and its application in seawater desalination.

This invention belongs to the field of passive seawater desalination technology, specifically relating to a novel organic-inorganic composite micro / nanoparticle self-oriented superhydrophilic phase change latent heat release dual-functional composite coating material, its preparation method, and its application in seawater desalination. The composite coating material is a PDA@SiO2@PS / PDVB@C18 phase change microcapsule, prepared from the following raw materials: 5-20 parts by weight of SiO2@PS / PDVB@C18 phase change microcapsule, 1-10 parts by weight of tris(hydroxymethyl)aminomethane solution, and 1-10 parts by weight of dopamine hydrochloride (PDA). The composite coating prepared by this invention provides greater adhesion and improved mechanical strength. Furthermore, the black outer surface of the PDA, in addition to enhancing the absorption of sunlight by JPs@PCM, can also form covalent crosslinks with the JPs@PCM surface, further improving the mechanical properties of the composite coating. When JPs@PCM is above the melting point of wax, the paraffin wax encased inside melts and absorbs heat, and due to its unique rivet structure, it does not leak. When cooled, it releases heat to heat the coating, which still gives it strong evaporation properties.
Owner:SHENYANG UNIVERSITY OF TECHNOLOGY

A silicone sealant production device

The utility model discloses a silicone sealant production device relates to sealant production technical field, including the reation kettle, the inlet of reation kettle is respectively through pipeline communication to have silica rubber jar, white carbon black jar, calcium carbonate jar, anti -settling agent jar, plasticizing agent jar, crosslinking agent jar and catalyst jar, the outlet of reation kettle is through pipeline communication to have double screw extruder, the outlet of double screw extruder is through pipeline communication to have product jar. Through adding anti -settling agent (such as organic bentonite) to reation kettle, with silica rubber, filler (white carbon black, calcium carbonate), plasticizing agent synchronous mixing, anti -settling agent can form three -dimensional net structure, prevent filler and settle in the subsequent storage and construction process, and the uniformity of silicone sealant is good, and the product quality is high.
Owner:SHANDONG SANZE SILICONE CO LTD

High-rate cellulose aerogel, preparation method and interface evaporator and application thereof

PendingCN122502715Aextended run timeReduced heat requirementsPolyethylene oxideOil emulsion
This invention discloses a high-rate cellulose aerogel, its preparation method, and the interfacial evaporator and applications thereof, belonging to the field of aerogel material technology. The preparation method includes: (1) selectively etching Ti3AlC2 with LiF / HCl solvent to obtain MXene nanosheet solution; (2) preparing phase change microcapsules (PCM) by emulsion template interfacial polymerization, using formamide as the aqueous phase, n-dodecane as the oil phase, and polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer (PEO-PPO-PEO) as the emulsifier, heating and stirring to form an oil-in-water emulsion; adding tetrabutyl titanate (TBT) to adsorb onto the micelle surface, and then adding formamide solution to initiate TBT hydrolysis and condensation polymerization to obtain PCM; (3) MPPC is prepared by layer-by-layer self-assembly: polyvinyl alcohol / nanocellulose (PVA / CNF) crosslinking layer, PCM layer and MXene layer are sequentially cast and composited, and freeze-dried to obtain high-rate cellulose aerogel MPPC. The MPPC of this invention can be applied to interfacial evaporators to achieve an interfacial evaporation rate of 3.88 kg·m³. ‑2 ·h ‑1 It maintains a strength of 1.65 kg·m² even in dark environments. ‑2 ·h ‑1 .
Owner:GUANGXI UNIV

A double-network hydrogel evaporator for interfacial water evaporation, preparation method and application

The present application relates to the technical field of seawater desalination material preparation, and particularly relates to a double-network hydrogel evaporator for interfacial water evaporation, a preparation method and application, comprising a polyvinyl alcohol first network and a 2-acrylamide-2-methylpropanesulfonic acid second network which penetrate each other, and Ti4O7 photo-thermal absorption material is dispersed in the first network; the evaporator has a macroporous skeleton formed by the first network and a multistage pore composed of nanoscale fibrous and membranous secondary structures derived from the second network on the macroporous skeleton, the mechanical stability is improved through a double-network synergistic enhancement mechanism, the multistage pore structure is used to accelerate water transmission and increase the evaporation interface, so that the evaporator has a high evaporation rate, excellent salt resistance and long-term operation stability, and is more suitable for solar-driven seawater desalination, and solves the problems of weak mechanical strength, poor structural stability and poor environmental adaptability of the hydrogel-based evaporator in the prior art.
Owner:SHAANXI UNIV OF SCI & TECH

A modular photothermal interface evaporator

This utility model discloses a modular photothermal interface evaporator, relating to the field of evaporator technology. It includes a frame body and a connecting frame. The top of the frame body has an installation cavity, inside which a light-absorbing plate is installed. A floating platform is fixedly installed on the lower exterior of the frame body, and a porous sponge is fixedly installed below the floating platform. The frame body has through holes, and two connecting grooves are provided on the side walls of the frame body, located on opposite sides. The connecting frame corresponds to the connecting grooves and is slidably connected to the frame body. The modular units of this photothermal interface evaporator are assembled using a combination of snap-fit ​​and plug-in connections, facilitating the assembly and disassembly of each module, reducing maintenance costs. Multiple photothermal interface evaporators can be combined and spliced ​​into a single unit, allowing for flexible adjustment of water production and improving the practicality of the photothermal interface evaporator.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN) +1

Tracer solution based on internal flow field pattern display of acoustic levitation droplet and preparation method thereof

PendingCN122237891APrepare for convenient observationsEasy to filterHydrodynamic testing
This invention discloses a tracer solution for displaying the internal flow field morphology of suspended droplets based on acoustic suspension and its preparation method, belonging to the field of flow field visualization technology. The method involves obtaining candidate solvents based on their performance parameters; determining a target solvent from the candidate solvents; obtaining candidate solutes based on the solubility and saturation concentration of the solute in the target solvent; obtaining the target solute from the candidate solutes based on the interfacial energy between the solute and solvent; dissolving the target solute in the target solvent to prepare a tracer solution for displaying the internal flow field morphology of suspended droplets; and suspending the tracer solution using ultrasonic suspension technology after preparation. This invention achieves convenient screening and preparation of tracer solutions for convenient visualization of the internal flow field of droplets, significantly improving observation efficiency and applicability.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Biochar-based hydrogel evaporator, preparation method and application

The invention belongs to the technical field of solar seawater desalination, and particularly relates to a charcoal-based hydrogel evaporator, a preparation method and application, and the charcoal-based hydrogel evaporator is prepared from the following components: gellan gum, Siberian iris and polyethylene glycol. Compared with the prior art, the charcoal-based hydrogel evaporator for solar seawater desalination (SSD) is prepared by using a simple mixing method, the charcoal-based hydrogel evaporator is prepared by calcining Siberian iris wastes at high temperature, and the carbonized Siberian iris is used for reducing evaporation heat and increasing the evaporation rate of the Siberian iris. Meanwhile, the original network structure of the SGG is destroyed by adding PEG, so that a new pore structure is formed, and faster movement of water molecules is facilitated. Under the same reaction parameters, the evaporation rate is obviously improved by 0.21 kg.m <-2 >. H <-1 > compared with that of an evaporator without PEG, and the photothermal conversion efficiency is improved by 11.3%.
Owner:SHENZHEN POLYTECHNIC

A method for preparing a 2D evaporation film constructed by self-assembling a two-dimensional superlattice of molybdate-heterocyanate subnanowires and its application.

A method for preparing a 2D evaporation membrane constructed from a self-assembled two-dimensional superlattice of molybdate-heteropolyblue subnanowires and its application are disclosed. The method involves dissolving phosphomolybdic acid and transition metal chlorides in a mixed solvent system of oleic acid, oleylamine, and ethanol, stirring at room temperature; then pouring the solution into a stainless steel high-pressure reactor lined with PTFE, reacting, cooling to room temperature, and collecting the solid product by centrifugation; washing, and vacuum drying overnight to obtain molybdate-heteropolyblue powder; dispersing the molybdate-heteropolyblue powder in a cyclohexane-ethanol mixed solution, heating the resulting dispersion, filtering it through a hydrophilic filter membrane to form a membrane, and air-drying it overnight to obtain the 2D evaporation membrane constructed from the molybdate-heteropolyblue two-dimensional superlattice. The advantages are: the nanowire structure of this evaporation membrane provides long-range ordered nanoscale water transport channels, and its internal hydrophilic and external hydrophobic properties enhance water management capabilities, thereby promoting efficient water transport and evaporation, enabling efficient and stable solar thermal seawater evaporation.
Owner:BOHAI UNIV

Composite photovoltaic evaporator for desalination of photovoltaic evaporation of water body and preparation method thereof

ActiveCN119191430Bgood biocompatibilitywith regulation
This invention belongs to the field of photo-evaporation desalination of water, specifically relating to a composite photoevaporator for photo-evaporation desalination and its preparation method. Carbon nanotubes, which possess excellent light absorption and water transport capabilities, are dispersed in biomass materials. Simultaneously, a layer of copper acetate is sprayed onto the surface of the biomass materials containing carbon nanotubes, forming copper particles after carbonization. The photoevaporator prepared by this invention combines metal, carbon nanotubes, and biomass materials, exhibiting contrasting hydrophilic and hydrophobic properties and strong salt resistance.
Owner:YANCHENG INST OF TECH

A pyrrolopyrrole organic small molecule photothermal material with high photothermal conversion efficiency, its preparation method and application

ActiveCN119841833BImprove nonradiative transition efficiencyHigh photothermal conversion efficiencyOrganic chemistrySeawater treatmentPhotothermal conversionBoronic acid
This invention relates to a pyrrolopyrrole organic small molecule photothermal material with high photothermal conversion efficiency, its preparation method, and its application. The invention belongs to the field of organic small molecule photothermal materials. It aims to solve the problems of poor thermal stability and low photothermal conversion efficiency in existing photothermal materials. Preparation method: BrDPPBr, R-boronate, potassium carbonate, and a high-boiling-point solvent are mixed, then heated, and a phosphine compound is added. The mixture is heated and stirred continuously. After the reaction, it is cooled to room temperature, and then pure water is added to precipitate the solid. The solid is then recrystallized and purified to obtain the pyrrolopyrrole organic small molecule photothermal material. Application: It is used for water evaporation. This invention relates to pyrrolopyrrole organic small molecule photothermal materials with high photothermal conversion efficiency, their preparation, and their applications.
Owner:GUIZHOU MINZU UNIV

Large-evaporation-capacity low-pressure nozzle

The large-evaporation-capacity low-pressure spray head comprises a flow channel pipe and a spray nozzle which are communicated, the flow channel pipe is provided with a first limiting body, a second limiting body and a swing body, the swing body is movably installed between the first limiting body and the second limiting body, and the swing body is connected with a water dispersing disc. The water dispersing disc is provided with a water dispersing needle located in the center and a plurality of flow channels arranged in the circumferential direction of the water dispersing needle, the flow channels rotationally extend from the water dispersing needle to the edge of the water dispersing disc, and water dispersing rib plates extending into the flow channels in the axial direction of the flow channels are arranged in the centers of the flow channels close to the edge of the water dispersing disc. The spray nozzle is used for jetting water to the water dispersing needle and driving the water dispersing disc to swing up and down and circumferentially around the spray nozzle along with the swing body, the spray nozzle can give consideration to the jetting range and the stable operation characteristic under the low-pressure working condition, the atomization evaporation capacity and the combination uniformity of the spray nozzle are effectively improved, the evaporation rate can reach 16% or above, and the Crisqin uniformity can reach 90% or above. The swinging body is detachably connected with the water dispersing disc, dismounting and replacement are easy, and the requirements for waste liquid recovery and cost saving of modern industries such as the mining industry are met.
Owner:JIANGSU UNIV +1