CN116182415B - Photothermal body and self-floating steam generating device - Google Patents
Photothermal body and self-floating steam generating device Download PDFInfo
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- CN116182415B CN116182415B CN202310436487.7A CN202310436487A CN116182415B CN 116182415 B CN116182415 B CN 116182415B CN 202310436487 A CN202310436487 A CN 202310436487A CN 116182415 B CN116182415 B CN 116182415B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/60—Details of absorbing elements characterised by the structure or construction
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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Abstract
The application relates to a photo-thermal body and a self-floating steam generating device, wherein the photo-thermal body mainly comprises coiled fabrics and photo-thermal materials; the coiled fabric is formed by coiling a plane fabric along the length direction, and the plane fabric consists of warp yarns and weft yarns; the plane fabric consists of left, middle and right areas which are sequentially arranged along the width direction; the left area has warp and weft yarns; warp yarns are arranged in the middle area, and part of weft yarns are woven tubes; the right area has no warp yarns, and the weft yarns are woven tubes; all warp and weft yarns are made of Calotropis gigantea fiber; photo-thermal material is deposited on the middle and right areas of the planar fabric; the device comprises a closed water collecting cover (comprising a bottom plate) and a photothermal body and a container which are positioned in the water collecting cover; the whole water collecting cover is made of transparent materials; the photo-thermal body is placed in a container, the container is fixed on the bottom plate, and a woven tube which is not interweaved with warp yarns in the photo-thermal body is positioned above the warp yarns; the water collecting cover is provided with a water inlet. The photothermal body of the application can be rapidly formed, is convenient to carry and has high steam generation rate.
Description
Technical Field
The application belongs to the technical field of sea water desalination, and relates to a photothermal body and a self-floating steam generating device.
Background
Solar-driven steam generation technology has evolved into a green, efficient fresh water harvesting technology, with emphasis on development of photothermal materials and research on photothermal structures. In the implementation process of the strategy, the treated aqueous solution is distributed on the surface of a photo-thermal body, and the photo-thermal body converts absorbed sunlight into heat energy and converts the interfacial aqueous solution into steam for collection. At present, the photo-thermal body has various structures, the three-dimensional structure has larger interface area, sunlight from all directions can be better received compared with a two-dimensional material with small thickness, and the three-dimensional material has larger advantages in terms of steam generation amount. However, the mechanical robustness, portability, and ease of preparation of three-dimensional materials have natural disadvantages. Particularly, the three-dimensional structure photothermal body is not easy to transport, and especially has serious defect of portability; the preparation process of the three-dimensional structured photo-thermal body is often complex, and is generally in a regular shape, and the secondary regulation and control of the structure on the basis of the regular shape often has the problem of material consumption; the three-dimensional structured photo-thermal body tends to be more fragile and is easy to break in the use process. The literature "Mushrooms as efficient solar steam-generation devices [ J ]. Advanced Materials, 2017, 29 (28): 1606762" describes that steam generation is achieved by carbonizing biomass mushrooms into a three-dimensional photo-thermal body, but the carbonized mushrooms are necessarily brittle, and transportation is seriously affected by the special morphology of the mushrooms.
In addition, in solar driven steam generation technology, when there is sunlight, the steam generation amount is much higher than in dark conditions. In the night, the photothermal body often lacks additional heat to be transmitted to the aqueous solution at the interface, the steam generation amount is influenced by the natural volatilization rate of the aqueous solution, and considering that in most areas, the time length of the day is close to that of the night, and the steam generation amount at night is enhanced. It has been known that when a photothermal body containing an aqueous solution is exposed to wind, the natural volatilization rate is significantly improved, however, the collection of steam is always requiredThe transparent cover body is used for completely covering the photo-thermal body, the wind power can not act on the surface of the photo-thermal body, and the problem of steam collection must be considered when introducing the wind power outside the system into the system, and the literature' Over 10 kg m -2 h -1 evaporation rate enabled by a 3D interconnected porous carbon foam[J]Joule, 2020, 4 (4): 928-937, "demonstrates efficient steam generation under the influence of air flow, but the device exposes the photothermal body completely to air and does not allow for efficient collection of steam.
Therefore, in combination with the performance of the three-dimensional structure at the present stage, the problems existing in the preparation and use processes and the difference of the natural weather conditions of day and night, development of a light-heat body with the three-dimensional structure, which is easy to prepare and portable, and a steam generation system with differences in the day and night form is needed.
Disclosure of Invention
The application aims to solve the problems in the prior art and provides a photothermal body and a self-floating steam generating device.
In order to achieve the above purpose, the application adopts the following scheme:
a photo-thermal body mainly comprises a coiled fabric and a photo-thermal material;
the coiled fabric is formed by coiling a plane fabric along the length direction, and the plane fabric consists of warp yarns and weft yarns;
the plane fabric consists of a left area, a middle area and a right area which are sequentially arranged along the width direction; the left area has warp and weft yarns; warp yarns are arranged in the middle area, and part of weft yarns are woven tubes; the right area has no warp yarns, and the weft yarns are woven tubes;
all warp and weft yarns are made of Calotropis gigantea fiber; the calotropis gigantea fiber is a hollow short fiber with water repellent outer surface, one end being open and the other end being closed;
photo-thermal material is deposited on the middle and right regions of the planar fabric; the deposition process is as follows: (1) At room temperature, a partial region of the planar or rolled fabric was immersed in 100ml of buffer at pH 8.0 with 0.35g catechol added for 24 hours; (2) After washing with deionized water, the flat fabric or a partial area of the rolled fabric was immersed in an iron chloride solution having a concentration of 1mg/ml for 1 hour at room temperature.
The photo-thermal body is mainly made of the calotropis gigantea fibers and the photo-thermal materials, a large number of gaps among the calotropis gigantea fibers ensure the efficient capillary effect of aqueous solution, the photo-thermal materials are not deposited on the left area of the plane fabric, and after the photo-thermal body is inserted into water, the hollow structure of the calotropis gigantea fibers can be utilized, so that the photo-thermal body floats on the water surface by itself.
One of the technical problems to be solved by the application is that the transportation of a photothermal body with a three-dimensional structure in the prior art is not easy, and especially the portability is seriously insufficient; the preparation process of the three-dimensional structured photo-thermal body is often complex, and is generally in a regular shape, and the secondary regulation and control of the structure on the basis of the regular shape often has the problem of material consumption; the three-dimensional structured photo-thermal body tends to be more fragile and is easy to break in the use process. The three-dimensional fabric structure (i.e. the rolled fabric) is formed by rolling the two-dimensional fabric structure (i.e. the plane fabric), the rolling process is simple and easy, the rapid forming can be realized, the three-dimensional fabric structure can be carried according to the two-dimensional fabric structure, and the three-dimensional fabric structure is convenient to transport and is rolled into the three-dimensional fabric structure when in use.
As a preferable technical scheme:
according to the photothermal body, the left area is a rectangular area, and the length in the width direction is 1/5-1/4 of the width; the middle area is a rectangular area, and the length along the width direction is 1/5-1/4 of the width.
In the photothermal body, the warp yarn in the left area is spun yarn, and the weft yarn is roving; the warp yarn in the middle area is spun yarn, and the weft yarn is roving and a woven tube; during weaving, the warp yarns need to undergo numerous stretches and rubs, the strength and abrasion resistance of the spun yarn is generally higher than that of the roving yarns, so that the left and middle regions use spun yarn as warp yarns, while the single weft yarns undergo less friction and stretch, so that the left and middle regions use roving yarns with relatively lower strength as weft yarns.
In the photothermal body, the roving in the middle area is formed by extending the roving in the left area to the right; the braided tube in the right region is formed by extending the braided tube in the middle region rightward; the spun yarn in the left and middle regions is the same.
The photo-thermal body is characterized in that the spun yarn is prepared from the ox horn melon fiber through a ring spinning process, and the fineness is 8-80 inches; the ration of the roving is 1.25-3 g/10m, the twist coefficient is 45-65, the roving is selected to be cohesive together for ensuring certain twisting of weft yarns in the roving, certain closed pores are formed, and meanwhile, the weft yarns in the roving are not easy to be excessively twisted to damage fibers due to the low twist coefficient, so that the buoyancy is reduced; the woven tube is a tubular object woven by using the spun yarn as a raw material, and the number of the section yarns is 24-96, and the woven tube is of a hollow structure.
As for the photothermal body, in the middle area, the number of the braided tubes is 1/3-1/2 of the number of the roving, the braided tubes are uniformly distributed, the number of the braided tubes is not too large, otherwise, the weft tightness is too large, the braided tubes are not easy to roll up, the density of the braided tubes is too large after the winding is finished, and the steam emission and the utilization efficiency of photothermal materials are not facilitated.
In the right region of the photothermal body, the right end of the braided tube is coated with polyvinyl alcohol hydrogel; the polyvinyl alcohol hydrogel plays a role in consolidation, so that the woven tube is prevented from being scattered, the polyvinyl alcohol hydrogel is porous and can also transmit water, the water evaporation is not influenced while the consolidation is performed, meanwhile, the polyvinyl alcohol hydrogel can also reduce the enthalpy change from liquid water to gaseous water, namely, the liquid water on the surface of the polyvinyl alcohol absorbs less energy and can be changed into the gaseous water; if other materials which do not affect the evaporation of water while exerting consolidation, the material can be used for replacing polyvinyl alcohol hydrogel; the coating process comprises the following steps: stirring a polyvinyl alcohol aqueous solution with the temperature of 85 ℃ and the concentration of 0.1g/ml, continuously adding epichlorohydrin, the mass of the epichlorohydrin is equivalent to that of the polyvinyl alcohol, then adding potassium hydroxide with the mass of half that of the polyvinyl alcohol, uniformly stirring, coating the solution on the right end of a woven tube, and standing for two days to form the polyvinyl alcohol hydrogel.
In one type of photothermal body as described above, the planar fabric is a plain weave fabric.
The application also provides a self-floating steam generating device, which comprises a closed water collecting cover, a photo-thermal body and a container, wherein the photo-thermal body and the container are both positioned in the water collecting cover; the whole water collecting cover is made of transparent materials and comprises a bottom plate; the optical heating body is one of the optical heating bodies according to any one of the above, the optical heating body is placed in a container, the container is fixed on a bottom plate, and a woven tube which is not interwoven with warp yarns in the optical heating body is positioned above the warp yarns; in order to ensure that the photothermal body can maintain a rolled shape, the bottom of the photothermal body can be bundled by carbon fiber multifilament; the water collecting cover is provided with a water adding port, so that the solution to be treated can be conveniently added into the container.
The photo-thermal body in the self-floating steam generating device is divided into an upper area, a middle area and a bottom area, which correspond to the right area, the middle area and the left area of the plane fabric respectively; the bottom area is an interweaving structure of spun yarn warp yarns and roving weft yarns, a large number of closed pore structures are reserved in the twisted roving by utilizing the characteristic of an opening at one end of the ox horn melon fibers, enough buoyancy is ensured, hydrophobic substances on the outer surface of the ox horn melon fibers ensure that aqueous solution does not easily permeate into the spinning frame, and the aqueous solution can be conveyed to the top end of a photo-thermal body along pores among a plurality of ox horn melon fibers by capillary action; the middle area is an interweaving structure of the spun yarn warp yarns, the roving weft yarns and the braiding pipe weft yarns, the horizontal plane is in the area, the highest position of the middle area is above the horizontal plane, and the middle area is more compact in structure due to the fact that the roving weft yarns and the braiding pipe weft yarns are arranged, so that the maximum range of sunlight absorption is guaranteed; the upper area is a plurality of braided tubes which are arranged in an array manner, the array arrangement increases the specific surface area of a photo-thermal body, particularly, the light rays with small angles with the horizontal plane can be absorbed, meanwhile, the escape channels of generated steam are ensured by the arrangement which is not dense, the braided tubes have enough gaps, the lower ends of the braided tubes are positioned in the middle area and are in contact with the treated aqueous solution, and the aqueous solution is conveyed to the upper ends of the braided tubes through capillary action.
As a preferable technical scheme:
the self-floating steam generating device has the advantages that the water collecting cover is of a cube structure and consists of the front side plate, the rear side plate, the left side plate, the right side plate, the bottom plate and the top plate; the left side plate is provided with a round table-shaped air inlet, the big end of the round table-shaped air inlet is arranged on the left, and the small end of the round table-shaped air inlet is arranged on the right, so that the wind speed can be increased, and the round table-shaped air inlet is blocked by a detachable blocking piece; the right side plate is detachably connected with the front side plate, the rear side plate, the bottom plate and the top plate, and the right ends of the front side plate, the rear side plate, the bottom plate and the top plate jointly enclose the water adding port; the bottom plate is high on the left and low on the right, and an included angle of 30-60 degrees is formed between the bottom plate and the horizontal surface.
The second technical problem to be solved by the application is that the prior art is difficult to enhance evaporation by wind power assistance at night; according to the application, different use schemes of day and night are designed through the difference of day and night weather conditions, sunlight is sufficient in the daytime, the round table-shaped air inlet of the left side plate is closed, the photo-thermal body absorbs the sunlight to generate heat and heats up, the water solution contacted with the photo-thermal body fills the pores of the whole photo-thermal body due to capillary effect, the high-temperature photo-thermal body heats the water solution on the surface to evaporate, steam is condensed into liquid water drops at the top plate of the water collecting cover, the top plate is high at the left and low at the right, and the liquid water drops flow down along the inclined plane to be collected; at night, the round table-shaped air inlet is opened, the detachable right side plate on the right side of the cover body is replaced by cotton needled non-woven fabric, wind power enters the water collecting cover at night, the photo-thermal body is blown, the natural evaporation rate of aqueous solution is increased, steam can be largely condensed in the cotton needled non-woven fabric, a small amount of steam is condensed on the transparent plate of the water collecting cover, the cotton needled non-woven fabric can absorb part of water vapor wrapped by wind power, the water collecting amount is ensured, and liquid water can be obtained by adopting mechanical compression or torsion action on the cotton needled non-woven fabric.
According to the self-floating steam generating device, after the 3.5wt% sodium chloride aqueous solution is added into the water collecting cover, the round table-shaped air inlet is plugged, and the self-floating steam generating device is used for generating the self-floating steam under the condition of standard simulated sunlight (1 kW/m) 2 ) The steam generation rate is 1.9-2.3 kg/(m) 2 H); opening a circular table-shaped air inlet, replacing the right side plate with cotton needle punched non-woven fabric (with the thickness of 0.1-1 mm), and enabling the steam generation rate to be 0.8-1.1 kg/(m) when the air speed of the air inlet is 1m/s 2 ·h)。
Advantageous effects
(1) According to the self-floating steam generating device, ox horn melon fibers are selected as main raw materials, a ring spinning process is adopted to prepare spun yarns and low-twist-coefficient roves, and the spun yarns and the low-twist-coefficient roves are woven into a tubular object; the low twist factor roving plays a role in floating, the spun yarn is used as warp yarn, the specific surface area of the tubular material is increased, different structures are prepared by adopting the same raw material, the types of the raw materials are reduced, and the preparation process is simplified;
(2) According to the self-floating steam generating device, the plane structure fabric is prepared into the three-dimensional structure through the rolling process, and the left, middle and right heterogeneous structures of the plane structure are converted into the upper, middle and lower heterogeneous structures of the three-dimensional structure, so that the rapid forming of the functional three-dimensional structure is realized;
(3) According to the self-floating steam generating device, wind power is introduced at night through the design of the water collecting cover, the evaporation rate of a water-containing photo-thermal body is enhanced through the introduction of the wind power, and the generation of night steam is increased to a certain extent;
(4) The self-floating steam generating device is convenient to prepare, convenient to carry, day and night-use, high in water collection amount and self-floating; especially, the design of the plane heterogeneous structure can be quickly converted into the design of the three-dimensional heterogeneous structure, so that the convenience and excellent practicability of processing are ensured, the design of the two-purpose structure for day and night fully considers the difference of natural conditions of day and night, and the steam yield is greatly enhanced according to time conditions.
Drawings
FIG. 1 is a schematic view of a self-floating steam generating device according to the present application (the vessel is omitted from the drawing);
FIG. 2 is a schematic structural view of a planar fabric according to the present application;
wherein, 1-left area, 2-middle area, 3-braided tube, 4-polyvinyl alcohol hydrogel, 5-photo-thermal body, 6-left side plate, 7-right side plate, 8-bottom plate, 9-round table shape air intake.
Detailed Description
The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
The detection method of the steam generation rate in each of the following examples and comparative examples is:
in the evaporation experiment process of the examples and the comparative examples, the model of the adopted light source is Newport 94043A, AM1.5; before measuring the weight change of the whole device before and after unit time (at least 36 hours) by using an electronic balance, the device needs to be noted that before measuring the weight, in order to avoid the influence of liquid water condensed on the water collecting cover, the liquid water on the water collecting cover needs to be completely and rapidly wiped by water absorbing paper, and meanwhile, the cotton needled non-woven fabric needs to be removed when the device is tested for quality; dividing the obtained weight change value by the evaporation time length to obtain the evaporation capacity of the water vapor in unit time, and dividing the evaporation capacity of the water vapor in unit time by the projection area of the photothermal body to obtain the final steam generation rate in unit time in unit area.
A photo-thermal body, as shown in figure 2, mainly comprises a coiled fabric and a photo-thermal material;
the coiled fabric is formed by coiling a plane fabric along the length direction, and the plane fabric consists of warp yarns and weft yarns;
the plane fabric is plain weave and consists of a left area 1, a middle area 2 and a right area which are sequentially arranged along the width direction; the left area 1 is a rectangular area, and the length along the width direction is 1/5-1/4 of the width; the middle area 2 is a rectangular area, and the length along the width direction is 1/5-1/4 of the width;
the warp yarn in the left area 1 is spun yarn, and the weft yarn is roving; the warp yarn of the middle area 2 is spun yarn, the weft yarn is roving and a weaving tube 3, and the number of the weaving tube 3 in the middle area 2 is 1/3-1/2 of the number of the roving; the right area is free of warp yarns, weft yarns are woven tubes 3, and the right end of each woven tube 3 is coated with polyvinyl alcohol hydrogel 4; the roving of the middle area 2 is formed by extending the roving of the left area 1 to the right; the braided tube 3 in the right region is formed by extending the braided tube 3 in the middle region 2 rightward; the spun yarn in the left area 1 and the spun yarn in the middle area 2 are the same;
the spun yarn is prepared from ox horn melon fibers through a ring spinning process, and the fineness is 8-80 inches; the roving is made of ox horn melon fiber, the ration of the roving is 1.25-3 g/10m, and the twist factor is 45-65; the braiding pipe 3 is a tubular object braided by taking the spun yarn as a raw material, and the number of the section yarns is 24-96;
photo-thermal material is deposited on the middle region 2 and the right region of the planar fabric.
A self-floating steam generating device, as shown in figure 1, comprises a closed water collecting cover, a photo-thermal body 5 and a container, wherein the photo-thermal body 5 and the container are both positioned in the water collecting cover;
the whole water collecting cover is made of transparent materials; the water collecting cover is of a cube structure and consists of a front side plate, a rear side plate, a left side plate 6, a right side plate 7, a bottom plate 8 and a top plate; the left side plate 6 is provided with a round table-shaped air inlet 9, the big end of the round table-shaped air inlet 9 is at the left, the small end is at the right, and the round table-shaped air inlet 9 is plugged by a detachable plugging piece; the right side plate 7 is detachably connected with the front side plate, the rear side plate, the bottom plate 8 and the top plate, and the right ends of the front side plate, the rear side plate, the bottom plate 8 and the top plate jointly enclose a water filling port; the bottom plate 8 is high at the left and low at the right, and the bottom plate 8 forms an included angle of 30-60 degrees with the horizontal plane;
the optical heating body 5 is the optical heating body 5, the optical heating body 5 is placed in a container, the container is fixed on the bottom plate 8, and the braiding pipe 3 which is not interweaved with the warp yarns in the optical heating body 5 is positioned above the warp yarns;
after adding 3.5wt% sodium chloride aqueous solution into the water collecting cover, plugging the round table-shaped air inlet 9, and under a standard simulated sunlight, the steam generation rate is 1.9-2.3 kg/(m) 2 H); after the round table-shaped air inlet 9 is opened and the right side plate 7 is replaced by cotton needle punched non-woven fabric, when the air inlet wind speed is 1m/s, the steam generation rate is 0.8-1.1 kg/(m) 2 ·h)。
The use method of the self-floating steam generating device comprises the following steps:
when the solar water heater is used in daytime, the round table-shaped air inlet 9 is closed, the right side plate 7 is removed to expose the water inlet, water to be treated (such as seawater) is added into the container, the right side plate 7 is installed to close the water inlet, and the whole device is placed under sunlight;
when the device is used at night, the round table-shaped air inlet 9 is opened, the right side plate 7 is removed, the water adding port is exposed, water to be treated (such as seawater) is added into the container, cotton needled non-woven fabric is installed, the water adding port is closed, the whole device is placed in a windy environment, and the position of the device is adjusted, so that wind can enter the water collecting cover through the round table-shaped air inlet 9.
Claims (8)
1. The photothermal body is characterized by mainly comprising a coiled fabric and a photothermal material;
the coiled fabric is formed by coiling a plane fabric along the length direction, and the plane fabric consists of warp yarns and weft yarns;
the plane fabric consists of a left area, a middle area and a right area which are sequentially arranged along the width direction; the left area has warp and weft yarns; warp yarns are arranged in the middle area, and part of weft yarns are woven tubes; the right area has no warp yarns, and the weft yarns are woven tubes;
the warp yarn in the left area is spun yarn, and the weft yarn is roving; the warp yarn in the middle area is spun yarn, and the weft yarn is roving and a woven tube; the roving in the middle area is formed by extending the roving in the left area to the right; the braided tube in the right region is formed by extending the braided tube in the middle region rightward; the spun yarn in the left area and the middle area are the same;
all warp and weft yarns are made of Calotropis gigantea fiber;
photo-thermal material is deposited on the middle and right regions of the planar fabric.
2. The optical heating body according to claim 1, wherein the left area is a rectangular area, and the length in the width direction is 1/5 to 1/4 of the width; the middle area is a rectangular area, and the length along the width direction is 1/5-1/4 of the width.
3. The photothermal body of claim 1, wherein the spun yarn is prepared from calotropis gigantea fiber by a ring spinning process, and has a fineness of 8-80 inches; the ration of the roving is 1.25-3 g/10m, and the twist coefficient is 45-65; the woven tube is a tubular object woven by using the spun yarn as a raw material, and the number of the section yarns is 24-96.
4. The optical heating body according to claim 1, wherein the number of the braided tubes in the middle region is 1/3 to 1/2 of the number of the rovings.
5. A photothermal body as defined in claim 1, wherein the right end of the braided tube is coated with a polyvinyl alcohol hydrogel in the right region.
6. The self-floating steam generating device is characterized by comprising a closed water collecting cover, a photo-thermal body and a container, wherein the photo-thermal body and the container are positioned in the water collecting cover; the whole water collecting cover is made of transparent materials and comprises a bottom plate; the photo-thermal body is one according to any one of claims 1-5, the photo-thermal body is placed in a container, the container is fixed on a bottom plate, and a woven tube which is not interwoven with warp yarns in the photo-thermal body is positioned above the warp yarns; the water collecting cover is provided with a water inlet.
7. The self-floating steam generating device as recited in claim 6, wherein the water collection cover has a cubic structure, and is composed of a front side plate, a rear side plate, a left side plate, a right side plate, a bottom plate and a top plate; the left side plate is provided with a round table-shaped air inlet, the big end of the round table-shaped air inlet is arranged on the left, the small end of the round table-shaped air inlet is arranged on the right, and the round table-shaped air inlet is blocked by a detachable blocking piece; the right side plate is detachably connected with the front side plate, the rear side plate, the bottom plate and the top plate, and the right ends of the front side plate, the rear side plate, the bottom plate and the top plate jointly enclose the water filling port; the bottom plate is high on the left and low on the right, and an included angle of 30-60 degrees is formed between the bottom plate and the horizontal surface.
8. The self-floating steam generating device according to claim 7, wherein after adding 3.5wt% sodium chloride aqueous solution into the water collecting cover, the truncated cone-shaped air inlet is plugged, and the steam generating rate is 1.9-2.3 kg/(m) under a standard simulated sunlight 2 H); open the round table air inlet and replace the right side plateAfter the non-woven fabric is needled by cotton, when the air speed of an air inlet is 1m/s, the steam generation rate is 0.8-1.1 kg/(m) 2 ·h)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310436487.7A CN116182415B (en) | 2023-04-23 | 2023-04-23 | Photothermal body and self-floating steam generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310436487.7A CN116182415B (en) | 2023-04-23 | 2023-04-23 | Photothermal body and self-floating steam generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116182415A CN116182415A (en) | 2023-05-30 |
| CN116182415B true CN116182415B (en) | 2023-08-29 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064163A (en) * | 2020-07-30 | 2020-12-11 | 东华大学 | Hollow wool warp carbon fiber double-layer fabric and preparation method and application thereof |
| CN113005628A (en) * | 2021-02-25 | 2021-06-22 | 中国科学院苏州纳米技术与纳米仿生研究所 | Carbon nano tube bionic tree braided fabric and preparation method and application thereof |
| CN216191201U (en) * | 2021-11-09 | 2022-04-05 | 汪栩安 | Self-floating purified water generation device with core suction yarns |
| CN114940523A (en) * | 2022-06-27 | 2022-08-26 | 青岛大学 | Solar seawater desalination and collection device based on interface photo-thermal evaporation technology |
| CN115215402A (en) * | 2022-08-11 | 2022-10-21 | 西安交通大学 | Solar photo-thermal evaporation steam collecting device |
| CN115504535A (en) * | 2022-08-23 | 2022-12-23 | 安徽农业大学 | Luffa stem steam generating body, preparation method thereof and luffa stem-based seawater desalination evaporator |
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- 2023-04-23 CN CN202310436487.7A patent/CN116182415B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064163A (en) * | 2020-07-30 | 2020-12-11 | 东华大学 | Hollow wool warp carbon fiber double-layer fabric and preparation method and application thereof |
| CN113005628A (en) * | 2021-02-25 | 2021-06-22 | 中国科学院苏州纳米技术与纳米仿生研究所 | Carbon nano tube bionic tree braided fabric and preparation method and application thereof |
| CN216191201U (en) * | 2021-11-09 | 2022-04-05 | 汪栩安 | Self-floating purified water generation device with core suction yarns |
| CN114940523A (en) * | 2022-06-27 | 2022-08-26 | 青岛大学 | Solar seawater desalination and collection device based on interface photo-thermal evaporation technology |
| CN115215402A (en) * | 2022-08-11 | 2022-10-21 | 西安交通大学 | Solar photo-thermal evaporation steam collecting device |
| CN115504535A (en) * | 2022-08-23 | 2022-12-23 | 安徽农业大学 | Luffa stem steam generating body, preparation method thereof and luffa stem-based seawater desalination evaporator |
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