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Three-dimensional interval-filling structure heat-collecting evaporation fabric and preparation, using method and usage

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 cost, low desalination efficiency, and slow desalination process, so as to improve water evaporation efficiency, short process flow, The effect of fast evaporation

Inactive Publication Date: 2018-05-29
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 interval-filling structure heat-collecting evaporation fabric and preparation, using method and usage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Heat collecting and evaporating fabric with three-dimensional space filling structure based on cotton fiber

[0031] Combine figure 1 , Select 20 cotton fibers as the water-absorbent layer warp yarn 6 and water-absorbent layer weft yarn 7 to weave the water-absorbent layer 3; select 30 ramie fibers as the spacer yarn 9; select a length of 10 cm, a width of 0.4 cm, a height of 0.5 cm, and a hole diameter of 10-20 microns The closed-cell foamed sponge is used as the floating embedding material 8 of the floating heat insulation layer 2; 15 black cotton fibers are selected for air deformation as the heat collection evaporation layer warp yarn 4 and the heat collection evaporation layer weft yarn 5 to weave the heat collection evaporation layer 1. Set fabric width 10 cm, warp and weft density: 5 yarns / cm; spacer yarn density: 2.5 yarns / cm.

[0032] Weaving process: In the first step, the weft insertion device is activated to introduce the upper and lower layers of weft yarn; the...

Embodiment 2

[0035] Heat collecting and evaporating fabric with three-dimensional space filling structure based on polyester fiber

[0036] Use 15 cotton fibers as warp and weft yarns to weave the water absorption layer; select 20 ramie fibers as spacer yarns; select closed-cell foam sponges with a length of 10 cm, a width of 0.5 cm, a height of 0.5 cm, and a pore size of 10-20 microns as the floating embedding material ; Select 1500tex hydrophilic modified polyester bulked yarn as the warp and weft yarn weaving heat collection evaporation layer. Set fabric width 10 cm, warp and weft density: 4 yarns / cm; spacer yarn density: 2 yarns / cm.

[0037] Weaving process: In the first step, the weft insertion device is activated to introduce the upper and lower layers of weft yarn; the second step is the single-group heald frame movement to drive the upper and lower warps to weave synchronously to realize the weaving of the upper and lower layers, namely the water absorption layer and the evaporation lay...

Embodiment 3

[0040] Heat collection and evaporation fabric with three-dimensional interval filling structure based on regenerated cellulose fiber

[0041] Use 600tex regenerated cellulose filament as warp and weft weaving water absorption layer, select black 600tex regenerated cellulose filament bulked yarn as warp and weft weaving heat collection evaporation layer; select polyethylene hollow with closed ends of 0.5 cm in diameter and 80% porosity The tube is used as the floating embedding material, and 30 ramie fibers are selected as the spacer yarn. Set fabric width 10 cm, warp and weft density: 10 yarns / cm; spacer yarn density: 2 yarns / cm.

[0042] Weaving process: In the first step, the weft insertion device is activated to introduce the upper and lower layers of weft yarn; the second step is the single-group heald frame movement to drive the upper and lower warps to weave synchronously to realize the weaving of the upper and lower layers, namely the water absorption layer and the evaporati...

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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Abstract

The invention provides three-dimensional interval-filling structure heat-collecting evaporation fabric. The three-dimensional interval-filling structure heat-collecting evaporation fabric comprises aheat-collecting evaporation layer, a floating heat-insulating layer, and a water-absorbing layer which are successively installed. The heat-collecting evaporation layer, the floating heat-insulating layer and the water-absorbing layer are bound as a whole body through mutually interlaced interval yarns with a water guiding function. The invention further provides a preparation and using method forthe three-dimensional interval-filling structure heat-collecting evaporation fabric and a usage thereof. The provided fabric can be floated on water, water is conducted from the water-absorbing layerto the heat-collecting evaporation layer through the interval yarns, and the water is evaporated by absorbing heat of sunshine through the heat-collecting evaporation layer. The provided fabric has athree-dimensional integrated structure, is light in weight, high in strength and simple in structure, and can be industrially produced. The fabric has the important application prospect in the sea water desalination and sewage treatment field.

Description

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

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): D03D11/00D03D1/00D03D13/00D03D15/00D03D25/00C02F1/04C02F103/08D03D15/217D03D15/225D03D15/283D03D15/50D03D15/54
CPCD03D1/0088D03D11/00D03D13/00D03D15/00D03D25/005C02F1/04C02F2103/08D10B2201/02D10B2201/01D10B2201/22D10B2331/04D10B2331/02D10B2321/022D03D15/49Y02A20/124
Inventor 许福军薛有松葛东升王丽华王文翰
Owner DONGHUA UNIV
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