Three-dimensional structure electrothermal evaporation fabric, preparation method and application

Abstract

The invention discloses a three-dimensional structure electrothermal evaporation fabric, a preparation method and application. The fabric comprises an electrothermal evaporation layer, a floating thermal insulating layer and a water absorption layer which are attached in sequence and combined into a whole through binder yarns. The preparation method comprises the steps that warp yarns are arrangedaccording to the selection scheme of yarns; weft yarns of all layers are introduced; the binder yarns are mutually interwoven to weave the warp yarns and the weft yarns of all layers into a whole; coiling is conducted through a stepping motor; after multiple circulation, the fabric is taken down from the machine. The two ends of electrothermal fiber in the electrothermal evaporation layer are connected with electrodes, and water of the electrothermal evaporation layer is heated and evaporated by means of heat generated by the electrothermal fiber. The fabric can float on the water surface, the binder yarns transfer the water to the electrothermal evaporation layer from the water absorption layer, after the electrothermal evaporation layer is energized, electric energy is converted into heat, and rapid evaporation of the water is achieved. The fabric has the three-dimensional integrated structure, the mass is low, the strength is high, the structure is simple, and industrialization production can be achieved; an important application prospect is achieved in the field of sea water desalination and sewage treatment.

Description

technical field [0001] The invention relates to a three-dimensional structure electrothermal evaporation fabric, a preparation method and an application, and belongs to the technical field of new materials. 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 sustainable development of the eco...

AI Technical Summary

Problems solved by technology

The multi-stage flash distillation 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 permeability, and the life of the membrane and The anti-pollution problem cannot be effectively solved, and the reverse osmosis membrane, high-pressure pump, and energy recovery device need to be replaced regularly

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

Images