▎ 摘　　要

NOVELTY - Portable fabric-type seawater desalination water intake bag comprises food-grade waterproof cloth and hydrophobic porous membrane which are spliced and sewn to form a water-collecting inner bag as the inner bag of the container for collecting fresh water, and the sutures are glued with food-grade waterproofing agent to prevent leakage. The position of the hydrophobic porous membrane is placed upwards. The strong water-absorbent fabric and the inner layer bag are nested and sewn as a strong hydrophilic outer layer bag to form a water bag body assembled with inner and outer layers. Above the outer bag and above the region of the hydrophobic porous membrane, a photothermal synergistic adsorption fabric layer having a shape and size similar to or the same as the hydrophobic porous membrane is arranged, and the photothermal synergistic adsorption fabric layer is closely attached to the outer bag. USE - The fabric-type seawater desalination water intake bag is used for fresh water treatment (claimed), and used in various scenarios such as life, production or emergency water intake in offshore operations. ADVANTAGE - The bag can be folded to adjust size and shape, is placed or transported, and can even meet the water intake needs of other application operations. The bag has light soft and thin, foldable, convenient to carry, energy-saving and durable, and low manufacturing cost. The material of the bag is cheap and easy to obtain, light and thin soft fabric or high molecular material, portable product, firm and durable and suitable for mass production and application popularization. The transparent waterproof sealing coating protects the photo-thermal fabric from abrasion and prevents photo-generated heat, the water vapor is dissipated in the air, the steam is easily entered into the inner bag through the hydrophobic porous film, and the condensed water vapor of the low-temperature seawater. DETAILED DESCRIPTION - Portable fabric-type seawater desalination water intake bag comprises food-grade waterproof cloth and hydrophobic porous membrane which are spliced and sewn to form a water-collecting inner bag as the inner bag of the container for collecting fresh water, and the sutures are glued with food-grade waterproofing agent to prevent leakage. The position of the hydrophobic porous membrane is placed upwards. The strong water-absorbent fabric and the inner layer bag are nested and sewn as a strong hydrophilic outer layer bag to form a water bag body assembled with inner and outer layers. Above the outer bag and above the region of the hydrophobic porous membrane, a photothermal synergistic adsorption fabric layer having a shape and size similar to or the same as the hydrophobic porous membrane is arranged, and the photothermal synergistic adsorption fabric layer is closely attached to the outer bag. The upper surface of the photothermal synergistic adsorption fabric layer is coated with a transparent waterproof sealing layer. The drinking water accessories are installed in areas other than those covered by the photothermal synergistic adsorption fabric layer, and connect the inner cavity of the water intake bag with the outside to form a fresh water outlet. The portable fabric-type desalination bag can be folded and adjusted in size and shape for storage or transportation. INDEPENDENT CLAIMS are included for: a preparation method of the portable fabric-type seawater desalination bag, adopting the design and preparation of inner and outer double bag structure, involving (a) providing that the water-collecting inner bag of the inner bag of the portable fabric-type seawater desalination bag is made by splicing food-grade waterproof cloth and hydrophobic porous membrane to collect fresh water, and gluing the suture with food-grade waterproof agent to prevent leakage, (b) selecting the outer bag of the portable fabric type seawater desalination bag to be sewn with strong water-absorbent fabric and inner bag nesting, decorating the region of the hydrophobic porous membrane portion on the outer bag, with a photothermal synergistic adsorption fabric that is similar or identical in shape and size to the hydrophobic porous membrane, (c) coating the outside of the photothermal synergistic adsorption fabric with a transparent waterproof sealing coating, and (d) installing the fresh water outlet drinking water attachment in the area outside the area covered by the photothermal synergistic adsorption fabric, and connecting the inner cavity of the water intake bag with the outside to form a fresh water outlet; and an application of a portable fabric type seawater desalination water intake bag, involving (a1) laying the portable fabric-type seawater desalination bag on the seawater surface, so that the side with the light-heat synergistic adsorption fabric layer is facing upwards and the other side is fully in contact with seawater, (b1) diffusing the seawater along the water-absorbing fabric of the strong hydrophilic outer layer to the entire outer bag of the water-absorbing bag under capillary action, including the water-absorbing fabric area of the lower layer of the photothermal synergistic adsorption fabric layer, (c1) passing sunlight through the transparent waterproof sealing layer and absorbing it by the photothermal synergistic adsorption fabric layer and then converting into heat to increase the temperature of the photothermal synergistic adsorption fabric layer, and causing photothermal co-adsorption of seawater in the area of the strongly hydrophilic outer layer below the fabric layer to evaporate water vapor, (d1) easily entering water vapor into the inner bag of the water bag through the hydrophobic porous film layer, and (e) contacting the other portions of the inner bag with the low-temperature seawater through the outer layer, which condenses the water vapor to obtain drinkable fresh water, and collect the obtained fresh water in the inner cavity of the water intake bag. DESCRIPTION OF DRAWING(S) - The drawing shows a portable fabric type seawater desalting water taking structure schematic diagram. (Drawing includes non-English language text).