CN110846752B - Device and method for preparing efficient light hot water evaporation material - Google Patents
Device and method for preparing efficient light hot water evaporation material Download PDFInfo
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- CN110846752B CN110846752B CN201911146619.2A CN201911146619A CN110846752B CN 110846752 B CN110846752 B CN 110846752B CN 201911146619 A CN201911146619 A CN 201911146619A CN 110846752 B CN110846752 B CN 110846752B
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D11/00—Other features of manufacture
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention relates to a device and a method for preparing a high-efficiency photothermal water evaporation material, which comprises a jet-type nanofiber yarn forming device and a photothermal conversion material spraying device, wherein the jet-type nanofiber yarn forming device comprises a fiber-collecting yarn disc driven to rotate, an electrostatic spinning nozzle, a high-voltage generator, a yarn guide hole disc, a traction roller and a yarn barrel frame, the electrostatic spinning nozzle is symmetrically arranged along the axis of the fiber-collecting yarn disc, the high-voltage generator is electrically connected with the electrostatic spinning nozzle, the yarn guide hole disc and the fiber-collecting yarn disc are correspondingly arranged, the traction roller and the yarn barrel frame are sequentially arranged at the downstream of the yarn guide hole disc, and the photothermal conversion material spraying device is uniformly arranged at intervals along the circumferential direction of a nanofiber twisting triangular cone between the fiber-collecting yarn disc and the yarn guide hole disc. The invention ensures the distribution uniformity of the photo-thermal conversion material, improves the stability of the combination of the photo-thermal conversion material and the nano-fiber, can effectively improve the photo-thermal water evaporation efficiency, realizes the one-step batch preparation of the high-efficiency photo-thermal water evaporation material, and improves the production efficiency.
Description
Technical Field
The invention belongs to the technical field of nanofiber spinning, and particularly relates to a device and a method for preparing a high-efficiency photo-thermal water evaporation material.
Background
Water, the most abundant compound on earth, almost covers the earth's surface at 3/4. Water resources are abundant on earth, however 96.5% of water resources are distributed in the ocean and cannot be directly drunk and used for life and production activities. In addition, the only fresh water resources also face the problems of unbalanced water resource distribution, rapid global population increase, rapid increase of industrial urbanization water demand, increasingly serious water pollution and the like.
Seawater desalination becomes the first choice for obtaining fresh water in human society, especially in water-deficient areas. The current mature sea water desalination methods include membrane methods and thermal methods, such as the use of RO reverse osmosis membranes and multi-stage flash technology. However, the two main modes need to consume fossil energy, for example, 4-5kWh of electric energy is consumed for preparing one ton of fresh water by a reverse osmosis membrane method, and the greenhouse effect is inevitably aggravated while seawater is desalinated.
Compared with the above technology, the solar seawater distillation technology has the unique advantages of no consumption of fossil energy, no position condition limitation, no pollution, safety, reliability and the like. The traditional solar distillation technology utilizes solar illumination to integrally heat the introduced seawater, and the seawater is evaporated and condensed to obtain fresh water. Because of the integral heating of the seawater, the utilization efficiency of the solar energy is very low, and is only about 20-40%.
Interfacial water evaporation is a new form of photo-thermal water evaporation that has recently emerged. The conversion efficiency and the photo-thermal water evaporation efficiency of the photo-thermal material can be greatly improved by effectively managing the photo-thermal conversion effect, the moisture transmission and the heat distribution through reasonable material structure design.
The textile material structure has excellent multi-stage assembly characteristics and simultaneously shows excellent service performance. The fiber assembly with the fiber as the unit has unique technical advantages in structural design, moisture transmission and heat distribution management of the photothermal conversion material.
A range of properties occur when the diameter of polymer fibers is reduced from the micrometer scale to the submicrometer scale or nanometer scale. Such as very large volume specific surface area, the volume specific surface area of nanofibers is substantially 1000 times that of microfibers; surface functionalization can be flexibly performed; compared with other known material forms, the material shows excellent effects and mechanical properties, such as surface and interface effects, small-size effects, quantum tunneling effects, rigidity, tensile strength and the like. These characteristics make nanofiber become the first choice material of many important applications, have great potential in fields such as high efficiency filtration, biomedical, intelligent sensing.
The carbon-based small-scale material and the plasmon material have good spectral absorption and thermal conversion characteristics. The material is reasonably distributed and fixed on the surface of the nanofiber aggregate, so that the photo-thermal conversion capability of the material is greatly improved. Meanwhile, the plurality of capillary channels constructed by the nano fibers are beneficial to the effective management of longitudinal water transmission and transverse spreading. The development of the fiber-based multilevel aggregate material has important significance for promoting the performance and the application of the photo-thermal water evaporation material.
Disclosure of Invention
The invention aims to solve the technical problems of low production efficiency, low photo-thermal water evaporation efficiency, insufficient distribution of photo-thermal conversion materials, inconsistent conversion heat management and moisture management and the like of the existing photo-thermal water evaporation materials and realize one-step method batch preparation of the high-efficiency photo-thermal water evaporation materials.
The technical scheme adopted by the invention for solving the technical problem is to provide a high-efficiency photo-thermal water evaporation material preparation device which comprises a counter-jet type nanofiber yarn forming device, wherein the counter-jet type nanofiber yarn forming device comprises a fiber collection yarn disc, an electrostatic spinning nozzle, a high-voltage generator, a yarn guide hole disc, a traction roller and a yarn barrel frame, the fiber collection yarn disc is driven to rotate, the electrostatic spinning nozzle is symmetrically arranged along the axis of the fiber collection yarn disc, the high-voltage generator is electrically connected with the electrostatic spinning nozzle, the yarn guide hole disc and the fiber collection yarn disc are correspondingly arranged, the traction roller and the yarn barrel frame are sequentially arranged at the downstream of the yarn guide hole disc, and the photo-thermal conversion material preparation device also comprises a plurality of photo-thermal conversion material spraying devices, and the photo-thermal conversion material spraying devices are uniformly arranged at intervals along the circumferential direction of a nanofiber twisting triangular cone between the fiber collection yarn disc and the yarn guide hole disc.
The fiber-collecting yarn disc is driven to rotate by a first servo motor, and the yarn barrel frame drives the yarn barrel to rotate by a third servo motor.
The electrostatic spinning nozzle is connected with a second servo motor through an insulating transmission shaft and is driven by the second servo motor to carry out position adjustment along the axial direction vertical to the integrated fiber yarn disc.
The photo-thermal conversion material spraying device comprises a pneumatic spray gun, a photo-thermal conversion material supply box and an air compressor with a pressure reducing valve, the photo-thermal conversion material supply box is connected with the pneumatic spray gun for supplying, and the pneumatic spray gun provides spraying pressure through the air compressor.
The photothermal conversion material supply box is loaded with the photothermal conversion material nanoparticle dispersion liquid which is subjected to ultrasonic uniform dispersion, and the photothermal conversion materials loaded in the photothermal conversion material supply boxes of the photothermal conversion material spraying devices are the same in particle size or different in component.
The photo-thermal conversion material spraying devices are arranged in two sets and symmetrically distributed along a nanofiber twisting triangular cone axis.
The technical scheme adopted by the invention for solving the technical problems is to provide a preparation method of a high-efficiency light hot water evaporation material, and the preparation device of the high-efficiency light hot water evaporation material comprises the following steps:
(1) respectively adjusting the relative position and the spinning direction of the electrostatic spinning nozzles at the two sides;
(2) respectively injecting high polymer spinning solution into the electrostatic spinning nozzles at two sides;
(3) starting the fiber-collecting yarn disc to rotate and adjusting the rotating speed;
(4) starting an electrostatic spinning nozzle, opening a high-voltage generator and adjusting spinning voltage until the electrostatic spinning nozzle generates continuous and stable spinning jet flow;
(5) the spinning jet flow is stretched, solidified and deposited on a rotating fiber-collecting yarn disc;
(6) leading out the nanofiber bundle deposited on the integrated yarn disc to form a nanofiber twisting triangular cone;
(7) injecting the photothermal conversion materials into the photothermal conversion material spraying device respectively, and starting the photothermal conversion material spraying device to spray the photothermal conversion materials to the nanofiber twisting triangular cone;
(8) the nanofiber bundle and the photothermal conversion material are continuously attached and deposited in a nanofiber twisting triangular cone region, and are twisted and drawn to form oriented nanofiber composite yarns loaded with the photothermal conversion material;
(9) and the nanofiber composite yarn is drawn by the traction roller, sequentially passes through the yarn guide hole disc and the traction roller, and is continuously conveyed to the yarn barrel frame for winding and collection.
Advantageous effects
According to the invention, the photothermal conversion material is sprayed in the process of forming the nanofiber twisting triangular space, the nanofiber bundle and the photothermal conversion material can be mutually attached, deposited and twisted to form an integrated oriented nanofiber composite yarn, the photothermal conversion material is coated on the surface layer of the yarn, and the photothermal conversion material is coated on the surface of each nanofiber in the yarn body, so that the photothermal conversion material is fully dispersed in the composite yarn, the distribution uniformity of the photothermal conversion material is ensured, and the stability of the combination of the photothermal conversion material and the nanofiber is improved. The nano-fibers are arranged along the orientation of the yarns to form a large number of capillary channels, so that the sufficient contact between the micro-element water and the photo-thermal conversion material in the moisture transportation process is ensured, the photo-thermal water evaporation material prepared by the oriented nano-fiber composite yarns loaded with the photo-thermal conversion material can ensure that the conversion heat management and the moisture management are more coordinated, and the photo-thermal water evaporation efficiency can be effectively improved. In addition, the invention realizes the one-step method batch preparation of the high-efficiency photo-thermal water evaporation material and improves the production efficiency.
Drawings
Fig. 1 is a schematic diagram of the principle of the present invention.
Fig. 2 is a schematic perspective view of an embodiment of the present invention.
Fig. 3 is a schematic top view of the embodiment of the invention.
Fig. 4 is a schematic side view of an embodiment of the present invention.
Fig. 5 is a schematic front structure diagram according to an embodiment of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The device for preparing the high-efficiency photothermal evaporation material shown in fig. 1-5 comprises a counter-spraying nanofiber yarn forming device and two sets of photothermal conversion material spraying devices.
The opposite-spraying type nanofiber yarn forming device comprises a fiber collecting yarn disc 11 driven to rotate, an electrostatic spinning nozzle 7, a high-voltage generator 10, a yarn guide hole disc 3, a traction roller 15 and a yarn barrel frame 1.
The fiber-collecting yarn disc 11 is made of conductive metal and is in a partial spherical shell shape, and the fiber-collecting yarn disc 11 is connected with the first servo motor 9 and is driven to rotate by the first servo motor 9. The electrostatic spinning spray head 7 is axially symmetrically arranged along the fiber-collecting yarn disc 11 to form a twin-spray structure, and the electrostatic spinning spray head 7 is connected with the second servo motor 1202 through an insulating transmission shaft 1201 and can be driven by the second servo motor 1202 to adjust the lifting position in the vertical direction. The electric field of the electrostatic spinning nozzle 7 is controlled by an electric field control ring 1203, the electric field control ring 1203 is connected with the anode of the high-voltage generator 10, and the voltage regulation range of the high-voltage generator 10 is 0-80 kV. The yarn guide hole disc 3 is arranged corresponding to the integrated yarn disc 11, the traction roller 15 and the yarn barrel frame 1 are sequentially arranged at the downstream of the yarn guide hole disc 3, and the yarn barrel frame 1 drives the yarn barrel to rotate through the third servo motor 2.
The two sets of photo-thermal conversion material spraying devices are symmetrically arranged on two sides of the nanofiber twisting triangular cone 13 between the fiber collecting yarn disc 11 and the yarn guide hole disc 3. The photo-thermal conversion material spraying device comprises a pneumatic spray gun 5 with the aperture of 0.5-10 mm, a photo-thermal conversion material supply box 4 and an air compressor with a pressure reducing valve, wherein the photo-thermal conversion material supply box 4 is connected with the pneumatic spray gun 5 in a feeding mode, and the pneumatic spray gun 5 is connected with the air compressor through the pressure reducing valve and provides spraying pressure through the air compressor. The photo-thermal conversion material spraying device can be provided with one set of pneumatic spray gun 5 system or a plurality of sets of pneumatic spray guns 5 systems, and the flow rate can be adjusted. The photothermal conversion material supply tank 4 is loaded with a photothermal conversion material nanoparticle dispersion liquid uniformly dispersed by ultrasonic waves, and the photothermal conversion material supply tanks 4 of the photothermal conversion material coating apparatuses are loaded with photothermal conversion materials having the same or different particle diameters or different components.
The following provides a preparation method of the high-efficiency light hot water evaporation material, and the preparation device of the high-efficiency light hot water evaporation material is used, and comprises the following steps:
(1) the horizontal relative height of the electrostatic spinning nozzles 7 at the two sides is respectively adjusted, so that the spinning direction faces to the fiber-collecting yarn disc 11;
(2) respectively injecting high polymer spinning solution into the electrostatic spinning nozzles 7 at two sides;
(3) starting the fiber-collecting yarn disc 11 to rotate and adjusting the rotating speed;
(4) starting the electrostatic spinning nozzle 7, opening the high-voltage generator 10 and adjusting the spinning voltage until the electrostatic spinning nozzle 7 generates a continuous and stable spinning jet 8;
(5) the spinning jet flow 8 flies to the rotating fiber-collecting yarn disc 11 under the action of a high-voltage electrostatic field, the solvent is volatilized in the motion process of the spinning jet flow 8, and the spinning jet flow 8 is stretched, solidified and deposited on the rotating fiber-collecting yarn disc 11;
(6) leading out the nanofiber bundle deposited on the integrated yarn disc 11 to form a nanofiber twisting triangular cone 13;
(7) respectively injecting photo-thermal conversion material nano-particle dispersion liquid fully dispersed by ultrasonic waves into a pneumatic spray gun 5, starting an air compressor, setting pressure of a pressure reducing valve, setting flow of the dispersion liquid sprayed by the pneumatic spray gun 5, opening the pneumatic spray gun 5, and spraying photo-thermal conversion material to a nanofiber twisting triangular cone 13;
(8) the nanofiber bundle and the photothermal conversion material nanoparticles 6 are continuously attached and deposited in the area of the nanofiber twisting triangular cone 13, and are twisted and drawn to form oriented nanofiber composite yarns loaded with the photothermal conversion material;
(9) the nanofiber composite yarn is drawn by a traction roller 15 to sequentially pass through a yarn guide hole disc 3 and the traction roller 15 and is continuously conveyed to a yarn barrel frame 1 to be wound and collected.
Example 1
The controllable high-efficiency photo-thermal water evaporation material is prepared from a high polymer solution prepared from Polyacrylonitrile (PAN) and N-N Dimethylformamide (DMF) and an ultrasonic dispersion solution prepared from nano graphite powder and methanol.
The mass fraction of the prepared PAN high polymer solution is 10 percent, and the mass fraction of the prepared nano graphite powder dispersion liquid is 5 percent. Respectively adjusting the distance between the two pairs of brush type electrostatic spinning nozzles 7 and the yarn axis to be 16 cm and the relative height of each electric field control ring 1203 to be 2 cm; respectively injecting high polymer spinning solution into the two pairs of brush type electrostatic spinning nozzles 7; respectively starting the two pairs of brush type electrostatic spinning nozzles 7; opening the first servo motor 9 of the fiber-collecting yarn disc 11 and setting the rotating speed to be 30 r/min; turning on the high voltage generator 15, and slowly adjusting to 45 kV; a large number of spinning jet flows 8 fly to the rotating fiber-collecting yarn disc 11 under the action of a high-voltage electrostatic field, the solvent volatilizes in the motion process of the spinning jet flows 8, and the spinning jet flows 8 are stretched, solidified and deposited on the fiber-collecting yarn disc 11; leading out the nanofiber bundle deposited on the integrated yarn disc 11 to form a nanofiber twisting triangular cone 13; respectively injecting photo-thermal conversion material nano-particle dispersion liquid which is fully dispersed by ultrasonic waves into a pneumatic spray gun 5, starting an air compressor, setting the pressure of a pressure reducing valve to be 20Pa, setting the flow of the dispersion liquid sprayed by the pneumatic spray gun 5, opening the pneumatic spray gun 5, and spraying photo-thermal conversion material to a nanofiber twisting triangular cone 13; the nanofiber bundle and the photothermal conversion material are continuously attached and deposited in the area of the nanofiber twisting triangular cone 13, and are twisted and drawn to form oriented nanofiber composite yarns loaded with the photothermal conversion material; the nanofiber composite yarn is drawn by a traction roller 15 to sequentially pass through a yarn guide hole disc 3 and the traction roller 15 and is continuously conveyed to a yarn barrel frame 1 to be wound and collected.
Example 2
The controllable high-efficiency photothermal water evaporation material is prepared from a high polymer solution prepared from Polyacrylonitrile (PAN) and N-N Dimethylformamide (DMF) and an ultrasonic dispersion liquid prepared from nano graphite powder (10 nm and 25 nm) with different particle sizes and methanol.
The mass fraction of the prepared PAN high polymer solution is 10 percent, and the mass fraction of the prepared nano graphite powder dispersion liquid is 5 percent. Respectively adjusting the distance between the two pairs of brush type electrostatic spinning nozzles 7 and the yarn axis to be 16 cm and the relative height of each electric field control ring 1203 to be 2 cm; respectively injecting high polymer spinning solution into the two pairs of brush type electrostatic spinning nozzles 7; respectively starting the two pairs of brush type electrostatic spinning nozzles 7; opening the first servo motor 9 of the fiber-collecting yarn disc 11 and setting the rotating speed to be 30 r/min; opening the high voltage generator 15, and slowly adjusting to 45 kV; a large number of spinning jet flows 8 fly to the rotating fiber-collecting yarn disc 11 under the action of a high-voltage electrostatic field, the solvent volatilizes in the motion process of the spinning jet flows 8, and the spinning jet flows 8 are stretched, solidified and deposited on the fiber-collecting yarn disc 11; leading out the nanofiber bundle deposited on the integrated yarn disc 11 to form a nanofiber twisting triangular cone 13; respectively injecting 10nm and 25nm nano-particle dispersion liquid fully dispersed by ultrasonic waves into the two groups of pneumatic spray guns 5, starting an air compressor, setting the pressure of a pressure reducing valve to be 20Pa, setting the flow of the dispersion liquid sprayed by the pneumatic spray guns 5, opening the pneumatic spray guns 5, and spraying a photo-thermal conversion material to the nanofiber twisting triangular cone 13; the nanofiber bundle and the photothermal conversion material are continuously attached and deposited in the area of the nanofiber twisting triangular cone 13, and are twisted and drawn to form oriented nanofiber composite yarns loaded with the photothermal conversion material; the nanofiber composite yarn is drawn by a traction roller 15 to sequentially pass through a yarn guide hole disc 3 and the traction roller 15 and is continuously conveyed to a yarn barrel frame 1 to be wound and collected.
Claims (6)
1. The utility model provides a high-efficient light hot water evaporation material preparation facilities, includes to spouting formula nanofiber yarn forming device, to spouting formula nanofiber yarn forming device is including receiving the rotatory collection of drive fibre yarn forming disc (11), electrostatic spinning shower nozzle (7), high voltage generator (10), lead yarn hole dish (3), carry over pinch rolls (15) and creel (1), electrostatic spinning shower nozzle (7) set up along collection fibre yarn forming disc (11) axial symmetry, high voltage generator (10) are connected with electrostatic spinning shower nozzle (7) electricity, lead yarn hole dish (3) and collection fibre yarn forming disc (11) and correspond the setting, carry over pinch rolls (15) and creel (1) set gradually in the low reaches of leading yarn hole dish (3), its characterized in that: still include a plurality of light and heat conversion material spraying device, a plurality of light and heat conversion material spraying device set up along the even interval of circumference of the nanofiber twisting triangular pyramid (13) between integrated fine yarn disc (11) and the yarn guide hole dish (3), light and heat conversion material spraying device includes that pneumatic spray gun (5), light and heat conversion material supply case (4) and take the air compressor of relief pressure valve, light and heat conversion material supply case (4) are connected with pneumatic spray gun (5) feed, pneumatic spray gun (5) provide the blowout material pressure through air compressor.
2. The apparatus for preparing high efficiency light hot water evaporating material as claimed in claim 1, wherein: the integrated yarn disc (11) is driven to rotate by a first servo motor (9), and the yarn barrel frame (1) drives a yarn barrel to rotate by a third servo motor (2).
3. The apparatus for preparing high efficiency light hot water evaporating material as claimed in claim 1, wherein: the electrostatic spinning spray head (7) is connected with a second servo motor (1202) through an insulating transmission shaft (1201) and is driven by the second servo motor (1202) to carry out position adjustment along the axial direction vertical to the fiber-collecting yarn disc (11).
4. The apparatus for preparing high efficiency light hot water evaporating material as claimed in claim 1, wherein: the photothermal conversion material supply box (4) is loaded with the photothermal conversion material nano particle dispersion liquid which is uniformly dispersed by ultrasonic waves, and the photothermal conversion materials loaded in the photothermal conversion material supply box (4) of each photothermal conversion material spraying device have the same or different particle diameters or components.
5. The apparatus for preparing high efficiency light hot water evaporating material as claimed in claim 1, wherein: the photo-thermal conversion material spraying devices are arranged in two sets and are axially and symmetrically distributed along the nanofiber twisting triangular cone (13).
6. A method for preparing a high-efficiency light hot water evaporation material, which is characterized by using the high-efficiency light hot water evaporation material preparation device of any one of claims 1 to 5, and comprises the following steps:
the relative position and the spinning direction of the electrostatic spinning nozzles (7) at the two sides are respectively adjusted;
respectively injecting high polymer spinning solution into the electrostatic spinning nozzles (7) at two sides;
starting the fiber-collecting yarn disc (11) to rotate and adjusting the rotating speed;
starting the electrostatic spinning nozzle (7), opening the high-voltage generator (10) and adjusting the spinning voltage until the electrostatic spinning nozzle (7) generates a continuous and stable spinning jet (8);
the spinning jet (8) is stretched, solidified and deposited on a rotating fiber-collecting yarn disc (11);
leading out the nanofiber bundle deposited on the integrated yarn disc (11) to form a nanofiber twisting triangular cone (13);
injecting the photothermal conversion materials into the photothermal conversion material spraying device respectively, and starting the photothermal conversion material spraying device to spray the photothermal conversion materials to the nanofiber twisting triangular cone (13);
the nanofiber bundle and the photothermal conversion material are continuously attached and deposited in the area of a nanofiber twisting triangular cone (13), and are twisted and drawn to form oriented nanofiber composite yarns loaded with the photothermal conversion material;
the nanofiber composite yarn is drawn by a drawing roller (15) to sequentially pass through a yarn guide hole disc (3) and the drawing roller (15) and is continuously conveyed to a yarn barrel frame (1) to be wound and collected.
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| CN107338642A (en) * | 2017-06-16 | 2017-11-10 | 江南大学 | A kind of functionalization non-woven cloth desalinization material and its preparation method and application |
| CN108180753A (en) * | 2017-12-28 | 2018-06-19 | 潘彦伶 | A kind of solar air heat collection system |
| CN108163917A (en) * | 2017-12-29 | 2018-06-15 | 曾庆福 | A kind of method for desalting seawater and device |
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