34results about How to "Improve evaporation effect" patented technology

The invention provides a whole-process continuous production system for an aliphatic epoxy diluent. The invention further provides a whole-process continuous production process of the aliphatic epoxy diluent. The invention further provides an aliphatic epoxy diluent which is prepared by the production process. According to the full-process continuous production system and process for the aliphatic epoxy diluent, through continuous process design and device optimization, the problems of high labor intensity and large product quality fluctuation in traditional intermittent method epoxy diluent production are effectively solved, the production efficiency and the product quality stability are improved, and the production cost is reduced. And the method has great application value and market competitiveness.

A turbofan engine and a bleed air door arrangement for reducing the effects of rain on engine performance. The bleed air door arrangement includes a bleed air window, a valve plate, and a grid; the bleed air window is configured in an intermediate casing between an outer and an inner duct, through the intermediate casing; the valve plate extends upstream from a downstream edge of the bleed air window into the inner duct to open the bleed air window; the grid extends from the valve plate into the inner duct to break up water droplets in the inner duct.

The utility model is suitable for single -effect evaporator technical field provides a single -effect evaporator, including jar body, the lateral wall of jar body is equipped with liquid inlet pipe, the inside of jar body is equipped with heating cavity, the inside of heating cavity is equipped with heating wire, heating wire electric connection has power supply and control system, the inside of jar body is located heating cavity below and is equipped with cylinder, the top surface and bottom surface of cylinder are through arrangement, the both sides inner wall of cylinder is equipped with first baffle and second baffle staggered interval, the top of jar body is equipped with air outlet pipe, the bottom of jar body is equipped with liquid outlet pipe. This scheme is equipped with cylinder and first baffle and second baffle staggered interval setting in the both sides inner wall of cylinder, can effectively isolate the suspended solids or the subsider in the solution in the evaporation process, is equipped with two heating cavities and the communicating pipe, not only energy -conserving, but also can improve heating efficiency, makes the solution heat more evenly, improves the evaporation effect.

The present application relates to desulfurization wastewater treatment technical field, disclose a kind of double-frequency sound field intensification evaporation desulfurization wastewater bypass processing device and method, comprising: high-temperature flue gas is introduced into evaporation tower and collects radial temperature sequence, calculates nonlinear sound velocity distribution model and delimits central acoustic constraint channel equivalent physical boundary, limit initial atomization extension formation droplet group;According to model, obtain phase compensation information and radiate low-frequency sound wave, form radial constraint sound field and maintain droplet group in center;Radiate high-frequency sound wave into constraint channel and excite micro-vortex flow field, synchronously obtain transient electrical impedance signal and extract characteristic quantity;Combined with the current device processing load state, real-time dynamic adjustment double-frequency sound wave output parameter, finally separate and discharge gas-solid mixture.The present application cuts off droplet collision wall scale path by low-frequency sound field constraint, uses high-frequency sound wave to peel off water vapor boundary layer to intensify mass transfer, and realizes closed-loop regulation in combination with impedance feedback, guarantee system evaporation stability.

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.

The application discloses an evaporation equipment, a display panel preparation method and a display panel. The evaporation equipment comprises an evaporation chamber, an evaporation source arranged in the evaporation chamber, and the evaporation source is rotatably arranged relative to the evaporation chamber, wherein the evaporation source comprises an evaporation port for spraying evaporation materials; a baffle structure arranged in the evaporation chamber and located at the outer circumferential side of the evaporation source, wherein the baffle structure comprises a plate body and an opening arranged on the plate body, and the evaporation port of the evaporation source is rotatably arranged opposite to the opening; a cooling structure arranged on one side of a second surface of the baffle structure, wherein the cooling structure comprises a cooling pipeline and a cooling medium arranged in the cooling pipeline; and a track assembly arranged on one side of the opening away from the evaporation source, wherein the track assembly comprises a bearing plate and a track part arranged on the bearing plate, and the track part is used for guiding the movement of a to-be-evaporated substrate. The cooling structure can cool the baffle structure, increase the adhesion capacity of the evaporation materials on the baffle structure, and improve the reliability of the evaporation equipment and the evaporation effect.

The invention discloses a mask assembly, a preparation method and evaporation equipment, and belongs to the technical field of display. The mask assembly comprises a mask, and the mask comprises an effective mask area used for being arranged corresponding to a display area of a display substrate. The mask plate comprises an organic material layer which comprises a plurality of mask openings located in the effective mask area and arranged at intervals, and the mask openings are used for being arranged corresponding to areas to be evaporated in the display area; and the magnetic pattern layer is positioned on one side of the organic material layer and is positioned among the mask openings in the effective mask region. The mask opening precision can be improved, so that the evaporation process precision requirement of the display substrate can be met.

The utility model discloses rectification equipment for hexane extraction. The rectification equipment comprises a base, a shell mounted at the top end of the base, an inlet mounted at the top end of the shell, a recovery mechanism mounted at the top end of one side of the shell, a filter screen mounted on one side of a discharge pipe, a discharge pump mounted on one side of the discharge pipe, and a flange mounted on one side of the discharge pipe. The discharging pump is installed on one side of the discharging pipe, suction force can be generated when the discharging pump works, hot air in the shell can be sucked out when the discharging pump works, then the hot air can be sucked out through the discharging pipe, the discharging pipe can be connected with other pipelines through the flange plate, the hot air passing through the discharging pipe can be filtered through the filter screen, and the filtering effect is good. According to the rectifying equipment for hexane extraction, dust is prevented from entering the discharging pipe, hot air can enter different devices through the discharging pipe and other pipelines, the hot air can be recycled, the devices are more energy-saving and environment-friendly, and therefore the purpose that the rectifying equipment for hexane extraction can conveniently recycle heat is achieved.

The application discloses a fluorine-modified graphene oxide-based aerogel bilayer as well as a preparation method and application thereof, and comprises a graphene oxide-based composite aerogel, wherein a main body of the graphene oxide-based composite aerogel comprises graphene oxide and sodium cellulose or chitosan; one side of the graphene oxide-based composite aerogel is subjected to modification treatment of fluorochlorosilane to provide hydrophobic and oleophobic properties. The preparation method comprises the following steps: preparing a graphene oxide aqueous solution and an aqueous solution of sodium cellulose or chitosan; mixing the graphene oxide solution and the sodium cellulose solution or the chitosan solution; freeze-drying the mixed solution, and then vacuum drying to obtain an aerogel; and using an organic solution containing fluorochlorosilane to infiltrate a non-woven fabric, placing the infiltrated non-woven fabric on a surface of the aerogel, standing, and drying. The graphene oxide-based aerogel is subjected to hydrophobic and oleophobic modification on the upper layer by using fluorochlorosilane, and the lower layer is hydrophilic, so that the graphene oxide-based aerogel has good salt resistance and stain resistance and high evaporation efficiency, and has a wide application prospect in the field of seawater desalination.

The application discloses an environment-friendly degradable functional school uniform fabric and a preparation method thereof, and particularly relates to the technical field of textiles, and relates to an environment-friendly degradable functional school uniform fabric and a preparation method thereof; the environment-friendly degradable functional school uniform fabric is prepared from polylactic acid chips, polyethylene glycol, dicumyl peroxide, quaternary ammonium chitosan derivative, tea polyphenol, baicalin, citric acid, butanetetrol, cotton pulp and N-methylmorpholine-N-oxide; the application constructs a fabric matrix by using fully biodegradable cellulose and hydrophilic modified polylactic acid, and matches a natural degradable functional system, so that the fabric can be completely decomposed by microorganisms in a compost environment, and the degradation performance of the application is improved.

This invention belongs to the field of thin-film evaporation technology and relates to a method for adjusting the heating process of a thin-film evaporator based on the wall film area. First, the liquid phase volume fraction of the grid cells on the wall surface in the internal flow field of the thin-film evaporator is used as a criterion. A liquid phase volume fraction of 0.5 is used as a boundary to screen the liquid film region and the dry wall region. For the dry wall region, a vaporization core region and a cracked region are screened with a limit of 1 Pa. Then, the area ratio of the vaporization core region in the wall film area is calculated. By adjusting the superheat, when the area ratio of the vaporization core region in the wall film area reaches the peak value under different superheats, the optimal superheat at the maximum evaporation rate is finally applied to actual production, thereby enabling the thin-film evaporator to obtain the optimal evaporation capacity. This invention subdivides the dry wall region, determines the optimal evaporation capacity by judging the wall film area ratio under the optimal superheat, and then applies it to actual production to improve the evaporation capacity of the thin-film evaporator.

This application provides a drying apparatus, including a primary drying mechanism, a secondary drying mechanism, and a hot air device. The primary drying mechanism includes a primary drying chamber and a conveyor. The primary drying chamber has a feed inlet facing the conveyor and connecting the primary drying chamber to the outside. The secondary drying mechanism includes a secondary drying chamber and a stirring mechanism. The secondary drying chamber is interconnected with the primary drying chamber. The stirring mechanism is disposed within the secondary drying chamber and configured to stir the material conveyed by the primary drying mechanism. The hot air device is connected to both the primary and secondary drying mechanisms and is configured to perform hot air drying on the materials within both chambers. By using a primary drying mechanism for preliminary drying and then a secondary drying mechanism for thorough drying, combined with the agitation of the stirring mechanism, surface moisture of the material can be removed, effectively solving the problem that traditional drying methods for powders can only remove surface moisture while internal moisture is difficult to completely evaporate.

This invention discloses a n-butane evaporator, relating to the technical field of evaporator equipment. It includes a first tank, a second tank, and heat exchange piping. The first tank has a first inlet at its bottom and a first outlet at its top. The second tank has a second inlet and a second outlet at its top, with a flow pipe connecting the first outlet and the second inlet. The heat exchange piping includes a first heat exchange flow path and a second heat exchange flow path that are interconnected. The first heat exchange flow path extends from the bottom into the first tank, extends upward, bends downward at a predetermined height, and exits from the bottom of the first tank. The second heat exchange flow path is wrapped around the outer wall of the flow pipe. The first end of the first heat exchange flow path is connected to a medium inlet, and the second end is connected to a medium outlet. The second tank is connected to a pressure system used to reduce the internal pressure of the second tank. This invention has the advantages of good evaporation effect and energy saving.

The utility model relates to the field of chemical equipment and evaporation technology discloses a kind of reaction devices of spray evaporation and tank wall flow guiding synergistic effect, including reaction bucket, material bucket, the top end inner wall of material bucket is fixedly connected with material extraction component, another end of the material extraction component is fixedly connected with spray head, the inner wall of reaction bucket is fixedly connected with multiple circumferential distribution's spoiler, the inner wall of reaction bucket is equipped with two interlaced distribution's flow guide groove, the inner wall bottom of reaction bucket is fixedly connected with material collecting plate, the bottom of reaction bucket is fixedly connected with discharge pipe, the outside of discharge pipe is provided with valve, the outside of reaction bucket is fixedly connected with evaporation switch mechanism.In the utility model, compared with the prior art, the contact area between the material liquid and the heating medium is increased, the problem of uneven evaporation in local area is avoided, and the evaporation effect of the material liquid is improved.

The application belongs to the technical field of interfacial evaporation materials, and particularly relates to a graphene composite hydrogel interfacial evaporation material and a preparation method and application thereof. The composite hydrogel interfacial evaporation material comprises a hydrogel matrix and nitrogen-doped graphene oxide, and the nitrogen-doped graphene oxide is embedded into the hydrogel matrix through covalent bonding and hydrogen bonding. The hydrogel matrix comprises polyvinyl alcohol and polyethyleneimine. The hydrogel matrix has a double-network composite structure. Through construction of a double-polymerization network and directional water channels, the water evaporation rate is improved. The preparation process is simple, green and environmentally friendly. The obtained hydrogel has excellent photothermal performance, can realize evaporation enthalpy reduction and efficient seawater evaporation, and has good desalination effect on seawater.

This utility model discloses a multi-stage purification device for continuous production of phosphate esters, relating to the field of phosphate ester production technology. It includes a heat-insulated negative pressure evaporator, with multiple heating collection hoppers evenly distributed on the inner wall of the evaporator, the smaller ends of which face downwards. A servo drive motor is fixedly connected to the center of the bottom of the evaporator, and a central rotating shaft is rotatably mounted at the center of the evaporator, passing through the center of the multiple heating collection hoppers. By incorporating an alcohol-ester separation bowl and an annular filter cover, alcohols in the phosphate ester solution can be separated, preventing alcohol residue in the solution and improving the purity of the phosphate ester. Through continuous evaporation via the multi-stage heating collection hoppers, the purity of the phosphate ester is gradually increased, achieving continuous production and effectively solving the problems of high steam consumption and low efficiency in traditional single-stage evaporators.

The utility model provides a rainwater sedimentation and seepage tank for a transformer substation. The rainwater sedimentation and seepage tank comprises a desilting basin, a sludge discharge well and a seepage tank, the grit chamber is communicated with rainwater output by the transformer substation through a water inlet pipe, the settled rainwater is input into the water seepage tank, and settled silt is discharged into the sludge discharge well; the bottom of the grit chamber is connected with a sludge discharge pump in the sludge discharge well through a sludge discharge pipe, and the sludge discharge well collects and discharges silt output by the sludge discharge pump; the upper part of the inner wall of the grit chamber is communicated with the water seepage tank; a grit cover plate is arranged at the top of the grit chamber; a water seepage cover plate capable of opening and closing the water seepage tank is arranged at the top of the water seepage tank. The desilting basin is arranged in front of the water seepage basin, sediment sedimentation is facilitated, and the water quality of inlet water of the rainwater water seepage basin is greatly improved. Under the weather condition of sunny days, the water seepage tank can be opened to increase the rainwater evaporation capacity, and rainwater is prevented from overflowing outwards in rainy seasons. The problem that a traditional rainwater seepage pool has a good water seepage effect in the early stage of substation construction is solved. And in the operation process for many years, the desilting and silt settling effects are not achieved.

This invention discloses a vaccine separator and its working method that utilizes vapor phase to achieve self-sterilization and cleaning functions. It relates to the field of vaccine separator technology and employs steam cleaning during the cleaning process of the vaccine separator. The principle behind this method is that vapor media have better permeability and diffusion than liquid media, and also possess superior heat dissipation and evaporation effects, resulting in better inactivation of residual bacteria during the separation process. Based on these aspects, a dual-path vapor-liquid structure is proposed, which, in essence, performs targeted and localized cleaning actions based on the injection method of the bacterial mixture during the separation process. This requires real-time interaction between the temperature and pressure environments inside the vessel according to the high-temperature steam injection process, ultimately aiming to improve the overall cleaning effect.

The present invention relates to the technical field of wood processing, and in particular to a raw material pretreatment device for wood carving construction processing, comprising two condenser pumps installed at one end of a drying processing box, control frames are slidably arranged at both ends of the drying processing box, two pretreatment tanks are arranged between the two control frames, top rods are respectively arranged on the top of the two pretreatment tanks, and the two ends of the top rods are respectively fixedly connected to the two control frames, and pretreatment reinforcement components for clamping the upper half of the raw material are respectively arranged on the two top rods. The present invention is conducive to the segmented clamping action of the upper half of the raw material, preventing the cracking or internal cracking caused by temperature and evaporation factors during the drying process of the raw material, improving the drying efficiency and quality of the raw material, expanding the scope of application of the pretreatment device, and at the same time, ensuring the uniform discharge of moisture, enhancing the evaporation effect, and improving the processing quality of the raw material.

The utility model discloses a cooling structure of a coated substrate. The cooling structure comprises a fixed plate, a water cooling mechanism and a positioning mechanism, the water cooling mechanism is installed below the fixing plate and comprises a water cooling disc, a water inlet pipe is installed on the water cooling disc, a water outlet pipe is arranged on one side of the water inlet pipe, a water conveying groove is formed in the water cooling disc, and a loading disc is fixed to the water conveying groove; the positioning mechanism is installed on the loading disc and comprises a positioning ring, a supporting ring is fixed to the positioning ring, a substrate is arranged on the supporting ring, a pair of fixing bolts is connected to the loading disc in a sliding mode, positioning cones are connected to the fixing bolts in a threaded mode, and a pair of limiting grooves corresponding to the positioning cones are formed in the positioning ring. Compared with the prior art, the cooling structure of the coating substrate can position the substrate, so that the substrate is not easy to move on the loading disc, the evaporation effect of the substrate is improved, the quality of an evaporation film on the surface of the substrate is improved, and resource waste is reduced.

The present invention discloses a low-power and high-efficiency evaporation device and method for a pure humidifier, comprising an evaporator for being placed in a water tank, the evaporator comprising a driving shaft, a plurality of evaporating sheets being mounted on the driving shaft, a metal sheet being arranged inside the evaporating sheet, an electromagnetic inductor corresponding to the metal sheet being arranged on one side of the evaporator, the electromagnetic inductor and the metal sheet forming an eddy current magnetic field, the metal sheet being used to correspond to the electromagnetic inductor at least once during the rotation of the evaporator, and the electromagnetic inductor electromagnetically induces the metal sheet when the evaporator rotates and increases the temperature of the evaporating sheet, forming a water film on the evaporator, starting the electromagnetic inductor, so that the electromagnetic inductor and the metal sheet inside the evaporating sheet form an eddy current magnetic field, thereby increasing the temperature of the metal sheet inside; the evaporating sheet is heated as a whole, and then the water film is heated to evaporate the water film; in order to optimize the existing humidifier and increase the humidification amount, it may result in excessive energy consumption of the fan and even noise problems.

The invention discloses a heat pump system, a control method of the heat pump system, an air conditioner and a storage medium, and relates to the technical field of heat pumps, the heat pump system comprises a compressor, a phase separator, a first heat exchanger, a first throttling component and a second heat exchanger, the first heat exchanger and the second heat exchanger are both connected with the compressor, the phase separator is provided with a first refrigerant port, a second refrigerant port and a liquid phase outlet, and the first refrigerant port and the second refrigerant port are both connected with the second heat exchanger; a pipeline between the first throttling component and the second heat exchanger is connected with the liquid phase outlet through a refrigerant branch, the refrigerant branch is provided with a refrigerant valve, and the refrigerant valve is arranged to be conducted under the condition that the second heat exchanger is in a condensation state and the first heat exchanger is in an evaporation state. The refrigerating capacity of the heat pump system is improved.

The invention discloses a deep processing system for extracting soybean protein peptide, and belongs to the technical field of soybean protein peptide processing. A deep processing system for extracting soybean protein peptide comprises a mounting frame, a material storage box is fixedly arranged at the top of the mounting frame, a drying box is rotationally connected to the lower side of the mounting frame, a liquid drainage pipe is arranged between the material storage box and the drying box, and a pneumatic cavity and a drying cavity are formed in the drying box; the end, away from the storage box, of the liquid drainage pipe penetrates through the mounting frame and the pneumatic cavity and extends into the drying cavity, a scraping assembly is arranged in the drying cavity, an exhaust assembly connected with the scraping assembly is arranged in the pneumatic cavity, a driving motor used for driving the scraping assembly to work is arranged on the mounting frame, and an air guide pipe used for conveying hot air is connected to the drying box. The soybean protein peptide drying device can improve the drying evaporation effect of feed liquid and guarantee the discharging efficiency after soybean protein peptide drying.

This invention discloses a radial flame stabilizer with airflow-assisted jet, comprising an outer wall and an inner wall. Both the outer and inner wall surfaces have V-shaped cross-sections, including a pointed tip and two tail ends. The two corresponding tail ends of the outer and inner wall surfaces are connected by a flow-rectifying wall. An air-guiding groove is provided at the pointed tip of the outer wall, and several injection holes are provided near the tail ends. The air-guiding groove, the interlayer between the outer and inner wall surfaces, and the injection holes form an airflow channel. A fuel injection extension pipe is provided near the tail ends of the inner wall, extending from the inner wall towards the injection holes. The fuel injection extension pipe guides the fuel injection from the injection holes. By introducing a portion of the incoming flow through the air-guiding groove at the stabilizer head, and utilizing the method of coaxial injection of the introduced incoming gas and fuel, the problem of shallow fuel jet depth and difficult evaporation under high-speed, large-flow conditions is improved, resulting in better fuel evaporation and mixing performance compared to conventional radial flame stabilizers.

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.

The application discloses an air conditioning system, and relates to the technical field of air conditioners, which can improve the comfort of users to some extent. The indoor unit is provided with an indoor heat exchanger; the outdoor unit comprises an outdoor heat exchanger, the outdoor heat exchanger comprises a first part and a second part; the indoor heat exchanger is connected with the outdoor heat exchanger through gas side pipes and liquid side pipes; the first part is defrosted by using refrigerant sensible heat, and the second part is defrosted by using refrigerant waste heat; wherein, the refrigerant sensible heat defrosting and the refrigerant waste heat defrosting are not simultaneously performed, the outdoor heat exchanger is divided into the first part and the second part by being divided into upper and lower parts, and the upper and lower heat exchangers can be alternately defrosted. The four-way valve is not reversed during the whole defrosting process, and the comfort of users is ensured.

The utility model discloses a methanol waste liquid recycling device which comprises a frame body and a support frame, the top of the frame body is fixedly connected with a tank body, the inner wall of the tank body is provided with a plurality of heating wires, the top of the tank body is fixedly connected with a top cover, and one side of the top cover is fixedly communicated with a filter box through a pipeline. A detachable filtering assembly is arranged in the filtering box, an L-shaped pipe is fixedly connected to the other side of the top cover in a communicating mode, a round pipe is fixedly connected to the circumferential outer wall of the L-shaped pipe, a spiral pipe is arranged in the round pipe, the two ends of the spiral pipe penetrate through the L-shaped pipe respectively and are provided with a cold source outlet and a cold source inlet, and a collecting box is fixedly connected to the upper surface of the supporting frame. According to the methanol waste liquid recycling device, methanol in the methanol waste liquid can be conveniently recycled, resources are saved, and residual methanol steam can be adsorbed through the replaceable activated carbon filter element.

The invention discloses an evaporation device and evaporation equipment. The evaporation device is used for depositing an evaporation material on a to-be-evaporated surface of a substrate, and comprises a lifting mechanism; the evaporation mechanism is arranged on the lifting mechanism and comprises a heating assembly, an evaporation source and a nozzle assembly; the evaporation source is used for storing evaporation materials, and the heating assembly is used for heating and gasifying the evaporation materials. The nozzle assembly is connected to one end of the evaporation source and comprises a plurality of nozzles arranged at intervals in the horizontal direction. The lifting mechanism is used for driving the evaporation mechanism to move back and forth in the vertical direction so as to spray an evaporation material to the to-be-evaporated surface; the evaporation source at least comprises a first area, a second area and a third area which are distributed in the horizontal direction, the heating assembly at least comprises a first heating piece, a second heating piece and a third heating piece, and the first heating piece, the second heating piece and the third heating piece are arranged in one-to-one correspondence with the first area, the second area and the third area. Through the arrangement, the problem that the film thickness uniformity is poor in the evaporation process of the evaporation equipment can be solved.

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.

The application provides a preparation method and a photothermal structure of a high-efficiency salt-tolerant interfacial evaporation and thermoelectric synergistic MXene / PPy@PDA-MF photothermal structure inspired by a cactus island array structure, and the preparation method comprises the following steps: MXene preparation, PDA-MF preparation and MXene / PPy@PDA-MF composite evaporator preparation. The three-dimensional biomimetic interfacial evaporator with a regular island array structure is constructed through selective etching, in-situ polymerization and impregnation assembly. The structure integrates the synergistic effect of the wide-spectrum light absorption of MXene, the high-efficiency light-heat conversion of PPy and the hydrophilic porous skeleton of PDA-MF, realizes the efficient regulation of light energy capture, water / salt transmission and heat localization. The application further introduces the application of the structure in seawater desalination and waste heat power generation. The MXene / PPy@PDA-MF evaporator exhibits excellent evaporation performance and stable thermoelectric output capacity. Through the biomimetic structure and multi-component synergy, the integration of light-heat conversion, water and salt management and energy recovery is realized, and the system energy efficiency is significantly improved.