Black ceramic composite ceramic sun plate

Abstract

The invention relates to a 'black enamel composite ceramic solar plate', wherein, pugs are fabricated by general ceramic raw materials adopting the general ceramic raw material processing method and then are formed into a porous through hole plate by utilization of the extruding method; through holes are driven to be communicated with each other on both ends through processing; both ends are respectively glued with an end head plate which has the same material and provided with an inlet and an outlet, forming a hollow ceramic solar plate biscuit; pugs are fabricated by mixture of ceramic black colorants and general ceramic raw materials and arranged on the surface of the hollow ceramic solar plate biscuit by means of spray coating; after drying and firing, the black enamel composite ceramic solar plate and a three-dimensional meshy black enamel composite ceramic solar plate are obtained. Compared with the prior solar collector such as a vacuum glass pipe, a copper-aluminum composite solar heat-collecting body and so on, the 'black enamel composite ceramic solar plate' is characterized by low cost, long service life and high average work efficiency within the period of the service life. The 'black enamel composite ceramic solar plate' utilizes various resources to fabricate the black ceramic hollow solar heat-collecting plate and utilizes the characteristics of low cost and long service life of ceramic materials to reduce the cost of utilization of solar energy and promote large-scale utilization of the solar energy.

Description

(1) Technical field [0001] The invention relates to the technical field of manufacturing ceramic products and utilizing solar energy by using ceramic products, in particular compounding black ceramics on the surface of a ceramic hollow plate as a solar heat absorbing plate. (2) Background technology [0002] Solar energy utilization is mainly divided into photoelectric utilization and solar thermal utilization. At present, solar thermal utilization is mainly solar water heaters. Solar water heaters are divided into suffocating type and circulation type. The circulation type has higher efficiency. The heat collector mainly adopts metal tube plate heat collection Body and vacuum glass tube heat collector, metal tube plate heat collector is also called flat plate heat collector. Both have the following disadvantages: 1. The metal tube-sheet heat collector mainly adopts materials such as copper and aluminum, and the structure and manufacturing process of the vacuum glass tube he...

AI Technical Summary

Problems solved by technology

Both have the following disadvantages: 1. The metal tube-sheet heat collector mainly adopts materials such as copper and aluminum, and the structure and manufacturing process of the vacuum glass tube heat collector are relatively complicated. high

2. Both of them use black sunlight absorbing paint coated at low temperature. Under the long-term sunlight, there will be a certain degree of aging to attenuate the sunlight absorption rate, the metal is easy to corrode, and the vacuum degree in the vacuum glass tube will gradually decrease. Significant Cause of Lifetime and Efficiency Issues

3. It is difficult to integrate with buildings due to reasons such as materials, structure, cost and lifespan

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