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Spacing padded heat collection evaporation fabric with loop structure, preparation and use method of fabric and application of fabric

A heat collection and coil technology, applied in the direction of fabrics, multi-strand fabrics, textiles and papermaking, can solve the problems of high installation cost, high power consumption, low desalination efficiency, etc., to improve water evaporation efficiency, increase contact area, The effect of short process flow

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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  • Spacing padded heat collection evaporation fabric with loop structure, preparation and use method of fabric and application of fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Cotton Fiber-Based Coil Structure Space-Filled Heat Collecting and Evaporating Fabric

[0033] combine figure 1 15 black cotton fibers are selected for air deformation as the upper warp yarn (warp yarn 4 of the heat-collecting evaporation layer) and the weft yarn of the upper layer (weft yarn 5 of the heat-collecting evaporation layer) to weave the heat-collecting evaporation layer 1, and 20 cotton fibers are selected as the warp yarn 6 and the water-absorbing layer Water-absorbing layer weft yarn 7 weaves water-absorbing layer 3; selects 30 ramie fibers as spacer yarn 9; selects length 10 cm, width 0.4 cm, height 0.5 cm, and a closed-cell foaming sponge with a pore diameter of 10-20 microns as the floating insulation layer 2 The floating embedding material8. Set fabric width to 10 cm, warp and weft density: 5 threads / cm; interval yarn density: 2.5 threads / cm;

[0034] Weaving process:

[0035] The first step is to start the weft insertion device to introduce the upp...

Embodiment 2

[0044] Space-fill heat-collecting and evaporative fabric with coil structure based on polyester fiber

[0045] Select 1500tex hydrophilic modified polyester bulky yarn as the warp and weft yarn to weave the heat-collecting evaporation layer; select 15 cotton fibers as the warp and weft yarn to weave the water-absorbing layer; select 20 ramie fibers as the spacer yarn; select length 10 cm, width 0.8 cm, height 0.5 cm closed-cell foam sponge with a pore size of 10-20 microns was used as the floating embedding material. Set fabric width to 10 cm, warp and weft density: 4 threads / cm; interval yarn density: 2 threads / cm;

[0046] Weaving process:

[0047] The first step is to start the weft insertion device to introduce the upper and lower weft yarns;

[0048]The second step let-off, the let-off length of the upper warp layer is 3.5 cm; the let-off length of the lower warp layer is 0.3 cm;

[0049] In the third step, the movement of a single set of heald frames drives the warp y...

Embodiment 3

[0056] Space-filled heat-collecting and evaporative fabric with coil structure based on regenerated cellulose fibers

[0057] Use black 600tex regenerated cellulose filament bulky yarn as the warp and weft yarn to weave the heat-collecting evaporation layer; use 600tex regenerated cellulose filament as the warp and weft yarn to weave the water-absorbing layer, and use polyethylene hollow with closed ends of 0.5 cm in diameter and 80% porosity The tube is used as a floating embedded material, and 30 to ramie fibers are selected as spacer yarns. Set fabric width to 10 cm, warp and weft density: 10 threads / cm; spacer yarn density: 2 threads / cm;

[0058] Weaving process:

[0059] The first step is to start the weft insertion device to introduce the upper and lower weft yarns;

[0060] The second step let-off, the let-off length of the upper warp layer is 1.2 cm; the let-off length of the lower warp layer is 0.3 cm;

[0061] In the third step, the movement of a single set of hea...

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 a spacing padded heat collection evaporation fabric with a loop structure. The fabric comprises a heat collection evaporation layer, a floating heat insulation layer and a waterabsorption layer which are sequentially arranged; the heat collection evaporation layer, the floating heat insulation layer and the water absorbing layer are bundled into a whole through mutually-interweaved spacing yarn with a water guiding function; the loop structure used for increasing the contact area of sunlight and air is arranged on the surface of the heat collection evaporation layer. The invention further provides a preparation method, use method and application of the spacing padded heat collection evaporation fabric with the loop structure. The fabric can float on the water surface, moisture is transmitted from the water absorption layer to the heat collection evaporation layer through the spacing yarn, and the heat collection evaporation layer is used for absorbing heat of sunlight to achieve moisture evaporation. The contact area between the fabric and air is increased through the loop structure, and the moisture evaporation efficiency is improved. The fabric is of a three-dimensional integrated structure, is low in weight, high in strength, simple in structure and capable of achieving industrial production, and has important application prospects in the fields of sea water 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 filled with a coil structure at intervals 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 sustaina...

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): D03D11/00
CPCD03D11/00
Inventor 许福军王丽华薛有松安亦锦
Owner DONGHUA UNIV
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