Salt-water-electricity cogeneration system of sun-tracking solar chimney and operation method of salt-water-electricity cogeneration system

Abstract

The invention discloses a salt-water-electricity cogeneration system of a sun-tracking solar chimney and an operation method of the salt-water-electricity cogeneration system. The salt-water-electricity cogeneration system is characterized by comprising a heat collecting shed, the solar chimney arranged in the center of the heat collecting shed, and a wind driven generator arranged in the junction between the heat collecting shed and the solar chimney; a plurality of heliostats are arranged on the edge of the heat collecting shed. The salt-water-electricity cogeneration system and the operation method have the benefits that double advantages of the solar chimney and a solar tower are integrated, solar energy can be utilized through condensing coupling or non-concentrating coupling, the area of the heat collecting shed and the height of the solar chimney can be effectively reduced, various types of energy can be sufficiently recovered, and the heat efficiency of the salt-water-electricity cogeneration system is improved.

Description

technical field [0001] The invention relates to a sun-tracking solar chimney salt, water and electricity cogeneration system and an operation method thereof, belonging to the technical field of energy optimization utilization. Background technique [0002] Our country is a big ocean country with a long coastline, and we can use solar energy to desalinate seawater. There are two main methods of existing solar desalination technology: one is to use solar power to drive the reverse osmosis process; the other is to use solar energy to generate heat to distill seawater to make it evaporate through phase change. The solar reverse osmosis method requires high-pressure pumps, reverse osmosis membranes, heat exchangers, condensers and other components, so the system is complex and the initial investment cost is high. The solar distillation method is simple, widely used, mature technology, and does not require additional power input. Therefore, thermal seawater desalination using so...

AI Technical Summary

Problems solved by technology

Most of the existing invention patents use the accumulated high-temperature heat energy to indirectly heat seawater to generate water vapor, thereby desalinating to obtain fresh water or concentrating to obtain sea salt. There are multiple heat exchange devices in this system, which affects the thermal efficiency of the system.

At the same time, this type of system needs to store a large amount of heat energy, so it needs to arrange a large-scale environment and strictly control each heliostat

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