Foam heat storage and method for preparing the same

Abstract

The invention discloses a foam heat storage regenerator and a preparation method thereof. The existing heat storage regenerators are all of direct type network structures or honeycomb structures, thereby having small surface area and non-ideal thermal storage effect, besides, due to the limitation of product forming, the shape of products cannot be too large, which has a higher requirement to application environment, therefore, the existing heat storage regenerators generally have the disadvantages of large difficulty of processing, high cost, low yield and narrow application range. The invention takes kaolin, aluminum oxide, spodumene and organic material as raw materials, the raw materials are first coated and adhered by polymer cavernous mode and then burnt and the finished products are produced. The invention has the advantages of large surface area, which is over 2000m2 / m3, good heat storage effect, large application efficiency, which is more than 90 percent, small product water absorption, which is less than 1 percent, high anti-pressure strength, large heat capacity, wide application, no limitation of system waste gas types, long service life, small processing difficulty and low cost and materials can be fully applied and comply with the environmental protection requirements.

Description

technical field [0001] The invention relates to a foam thermal storage body, and also relates to a preparation method of the thermal storage body. Background technique [0002] Thermal energy is involved in many fields of industry. How to make better use of thermal energy and save thermal energy is an important issue we face. Thermal energy storage technology is an important means to improve the utilization rate of thermal energy, and thermal energy storage requires the use of heat storage body. The technology of regenerators has developed rapidly. In terms of shape and size, honeycomb bodies, heat storage balls and tubular regenerators have appeared successively; in terms of materials, traditional metal and ceramic regenerators include cordierite and mullite. Stone has developed into high-performance inorganic salts and ceramic-based composite regenerators in recent years. In the molding method, there are extrusion molding, rolling molding and machine compression molding....

AI Technical Summary

Problems solved by technology

The technical development direction of the preparation of heat accumulators disclosed above has given us good technical inspiration. However, the existing preparation technology of heat accumulators still has a lot of room for development in terms of materials and preparation methods, because the existing The heat accumulators are straight through the network structure or honeycomb structure, the specific surface area is small, the heat storage effect is not ideal, due to the limitation of product forming, the product shape cannot be too large, and the requirements for the use environment are high, and the pH value even requires To neutral, otherwise it will affect the life of the product. The use efficiency is generally 70-75%. There are generally disadvantages such as difficult processing, high cost, low yield and small application range.