Solar composite tube, solar composite bed comprising the same, and solar cold and heat supply system comprising solar composite bed

Abstract

A solar composite tube, including a solar vacuum tube having two open ends; a water path; an adsorbent; and an adsorbate. The solar vacuum tube includes an outer metal tube and an inner metal tube which are coaxially disposed inside the solar vacuum tube. The water path is formed between the outer metal tube and the solar vacuum tube; the adsorbent is disposed between the outer metal tube and the inner metal tube and is configured to exchange heat with water in the water path outside the outer metal tube; the inner metal tube includes a plurality of through holes; the adsorbate is disposed in the inner metal tube; and the adsorbate and the adsorbent form an adsorption-desorption working pair. The invention also provides a solar composite bed including a lower header, an upper header, and the solar composite tube.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation-in-part of International Patent Application No. PCT / CN2015 / 082787 with an international filing date of Jun. 30, 2015, designating the United States, now pending, and further claims priority benefits to Chinese Patent Application No. 201410419864.7 filed Aug. 22, 2014. The contents of all of the aforementioned applications, including any intervening amendments thereto, are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]Field of the Invention[0003]The invention relates to a solar composite tube, a solar composite bed comprising the solar composite tube, and a solar cold and heat supply system comprising the solar composition bed.[0004]Description of the Related Art[0005]Fossil fuels, including coal, and natural gas, are used as energy sources in many fields, which contributes to global warming.[0006]Although, solar composite tubes may also be used for heat collection, conventional solar ...

AI Technical Summary

Benefits of technology

[0015]Compared with conventional solar heat collection tubes, the solar composite tube of the invention has the cooling function when the vacuum pipe collects heat, that is, the solar energy is able to transfer the heat to the absorbent in the composite tube via the vacuum pipe, realizing the heat storage in the daytime. The absorbent is heated to a certain temperature and then exchanges heat with the adsorbate to desorb the adsorbate. The desorbed adsorbate is cooled and stored in the evaporator. In the night, the absorbent is coo

Problems solved by technology

Although, solar composite tubes may also be used for heat collection, conventional solar composite tubes have low heat supply efficiency, and have almost n

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