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Three-dimensional filling structure heat collecting evaporation fabric and preparation and using methods and application thereof

A heat-collecting, three-dimensional technology, applied in the direction of fabrics, multi-strand fabrics, textiles, and papermaking, can solve the problems of high equipment costs, slow desalination process, and low desalination efficiency, so as to improve water evaporation efficiency, fast evaporation speed, and process short process effect

Inactive Publication Date: 2018-06-29
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-stage flash evaporation technology in the distillation method consumes a lot of power and the operation flexibility of the equipment is small. The low-temperature multi-effect distillation equipment of the multi-effect distillation technology has a large volume and high equipment cost
The electrodialysis method has a simple process and a high desalination rate, but the water recovery rate is low, the team has no ability to remove uncharged substances, and consumes a lot of energy, so it is not suitable for large-scale seawater desalination projects
The reverse osmosis method requires a "semi-permeable membrane" with selective permeation performance. The lifespan and anti-pollution problems of the membrane cannot be effectively solved. The reverse osmosis membrane, high-pressure pump, and energy recovery device need to be replaced regularly
[0004] The above technologies mainly use thermal energy and electric energy as energy sources for seawater desalination, and the desalination efficiency is not high, the equipment is complicated, and the desalination process is slow. Obviously, to achieve large-scale seawater desalination, it is first necessary to seek more reliable and economical new energy sources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Three-dimensional filling structure heat collecting evaporation fabric and preparation and using methods and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Cotton fiber-based three-dimensional filled structure heat collection and evaporation fabric

[0031] to combine figure 1 , select 20 black cotton fiber air deformations as the upper warp yarn (warp yarn 5 of the heat collection evaporation layer) and the weft yarn of the upper layer (weft yarn 4 of the heat collection evaporation layer) to weave the heat collection evaporation layer 1; select length 10 cm, width 0.4 cm, height 0.5 10-20 micron closed-cell foamed sponge is used as the floating embedded material 6 of the floating insulation layer 2; 20 cotton fibers are selected as the warp yarn 7 of the water-absorbing layer and the weft yarn 8 of the water-absorbing layer is used to weave the water-absorbing layer 3; 20 ramie fibers are selected The fiber is used as a binding yarn 9; the fabric width is set to 10 cm, the warp and weft density: 5 threads / cm; the binding yarn density: 2.5 threads / cm;

[0032] Weaving process:

[0033] The first step is to arrange warp ...

Embodiment 2

[0042] Three-dimensional filling structure heat collection and evaporation fabric based on polyester fiber

[0043] Use black 1200tex hydrophilic modified polyester bulky yarn as warp and weft yarns to weave the heat-collecting evaporation layer; use closed-cell foam sponge with a length of 10 cm, a width of 1 cm, a height of 0.6 cm, and a pore diameter of 10-20 microns as the floating embedded material; 20 cotton fibers are used as the warp and weft yarns to weave the water-absorbing layer; 20 ramie fibers are selected as the binding yarn; the fabric width is set to 10 cm, the warp and weft density: 5 yarns / cm; the binding yarn density: 1 yarn / cm;

[0044] Weaving process:

[0045] The first step is to arrange warp yarns and binding yarns according to the yarn selection scheme;

[0046] The second step is to start the weft insertion device, introduce each layer of weft yarn, and take it up by the motor;

[0047] The third step, repeat the above operation 5 times;

[0048] ...

Embodiment 3

[0054] Three-dimensional filled structure heat collection and evaporation fabric based on regenerated cellulose fibers

[0055]Black 1000tex regenerated cellulose filament bulky yarn is selected as the warp and weft yarn to weave the heat-collecting evaporation layer; polyethylene hollow tubes with a closed diameter of 0.5 cm at both ends and a hollowness of 80% are selected as the floating embedding material; 1000tex regenerated cellulose filament is selected as the Warp and weft yarns are used to weave the water-absorbing layer; 20 ramie fibers are selected as binding yarns. Set fabric width to 10 cm, warp and weft density: 8 threads / cm; binding yarn density: 2 threads / cm;

[0056] Weaving process:

[0057] The first step is to arrange warp yarns and binding yarns according to the yarn selection scheme;

[0058] The second step is to start the weft insertion device, introduce each layer of weft yarn, and take it up by the motor;

[0059] The third step, repeat the above o...

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Abstract

The invention provides a three-dimensional filling structure heat collecting evaporation fabric which comprises a heat collecting evaporation layer, a floating heat insulation layer and a water absorbing layer which are sequentially arranged; the heat collecting evaporation layer, the floating heat insulation layer and the water absorbing layer are bound into a whole through binder yarn with the water guiding function. The invention further provides preparation and using methods and application of the three-dimensional filling structure heat collecting evaporation fabric. The fabric can floaton the water surface, water is conveyed to the heat collecting evaporation layer from the water absorbing layer through the binder yarn, and water evaporation is achieved by absorbing heat of sunlightthrough the heat collecting evaporation layer. The fabric has the three-dimensional integrated structure, is low in mass, high in strength and simple in structure, and can achieve industrialized production; the important application prospect is achieved in the field of seawater desalination and sewage treatment.

Description

technical field [0001] The invention relates to the technical field of new materials, more specifically, to a heat-collecting and evaporating fabric with a three-dimensional filling structure and its preparation, use and application. Background technique [0002] The total amount of fresh water resources on land only accounts for 2.53% of the total amount of water bodies on the earth, and most of the fresh water is frozen in the ice sheets and glaciers of the north and south poles and high mountains, making it difficult to use. The uneven distribution of fresh water resources in time and space and the irrational use of human beings make many areas of the world face a serious crisis of fresh water resources. With the development of the economy, the use of fresh water has increased sharply, and the economic growth, population increase and water pollution have led to a serious shortage of fresh water resources in my country, which has become an important obstacle to the sustain...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D25/00D03D11/00D03D15/00C02F1/04C02F103/08D03D15/217D03D15/225D03D15/283D03D15/40D03D15/50
CPCD03D11/00D03D15/00D03D25/005C02F1/04C02F2103/08D10B2401/022D10B2331/04D10B2331/02D10B2321/022D10B2201/08D10B2201/02D03D15/49Y02A20/124
Inventor 许福军薛有松葛东升黄梦雯
Owner DONGHUA UNIV
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