System and method of operation for modular solar heat collection and driving seawater desalination

Abstract

The invention discloses a solar heat collecting device, comprising: a heat absorbing pipe, a focus positioning ring is arranged on the outer shell of the heat absorbing pipe; a top reflective surface is arranged above the heat absorbing pipe; a parabolic reflective surface is arranged below the heat absorbing pipe; a connecting bracket , the focus positioning ring, the top reflecting surface and the parabolic reflecting surface are connected together; wherein, the line where the focus of the parabolic reflecting surface is located is consistent with the center line of the heat absorption pipe. The invention also discloses a modular solar heat collection device, a system for modular solar heat collection and driving seawater desalination, and an operation method for the modular solar heat collection and driving seawater desalination system. The modular solar heat collecting device provided by the invention realizes the modularization of the solar heat collecting device, and can flexibly arrange the number and arrangement of the solar heat collecting device according to the power requirement and the actual situation of the site, realizes the large-area collection of solar energy, and expands the Desalination yields.

Description

technical field [0001] The invention relates to a solar water desalination system, in particular to a solar heat collecting device, a modular solar heat collecting device and a system and an operating method for the modular solar heat collecting and driving seawater desalination. Background technique [0002] Seawater desalination technology is a technology that concentrates seawater to obtain freshwater by separating the freshwater components in seawater. With the development of international trade, the economies of coastal areas around the world have developed rapidly, and large cities with high population density have continued to emerge, accompanied by a huge demand for freshwater resources. Due to the huge demand, most coastal cities cannot meet their own demand for freshwater resources in a long-term and stable manner through remote water transfer or groundwater extraction. Therefore, obtaining freshwater resources from rivers and seawater has become a truly feasible s...

AI Technical Summary

Problems solved by technology

[0004] However, the current solar desalination technology has the following shortcomings: 1. The output is small and cannot meet the fresh water needs of a large population; 2. The structure is complex, and the initial investment cost corresponding to the output of fresh water per ton is high, which cannot meet the economic requirements, so it is not available Conditions for large-scale application; 3. The reliability of the equipment is poor, and it is difficult to ensure long-term stable operation

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