System and method for combining electricity generation, heating, cooling, and water intake based on chemical heat storage

Abstract

Disclosed are a system and method for combining electricity production, heating, cooling, and water intake based on chemical heat storage. In the system, the first hydrated base heat storage material absorbs heat and undergoes a desorption reaction to generate water vapor, or the first hydrated base heat storage material is combined with The moisture from the first valve undergoes a hydration reaction to release reaction heat. The first power generation unit includes a first steam turbine that expands superheated steam and a first generator that is coaxially connected to the first steam turbine. The second hydrated salt-based heat storage material absorbs The heat undergoes a desorption reaction to generate water vapor, or the second hydrated salt-based heat storage material undergoes a hydration reaction with moisture from the second valve to release reaction heat, and the desorption temperature of the second hydrated salt-based heat storage material is lower than that of the first combined heat storage material. The desorption temperature of the salt-based heat storage material. The second power generation unit includes a second steam turbine that expands through high-pressure superheated steam and a second generator that is coaxially connected to the second steam turbine. The refrigeration unit is connected to the second circulation loop through a three-way valve to Refrigeration.

Description

technical field [0001] The invention relates to the technical field of chemical heat storage and electricity generation, heat supply, refrigeration, and air water intake, in particular to a system and method for combining electricity generation, heating, cooling, water intake based on chemical heat storage. Background technique [0002] With the continuous development of modern society, human's demand for energy has increased dramatically. At the same time, the problems of traditional energy depletion and environmental pollution have become increasingly serious. In order to solve the intermittency and instability of renewable energy such as solar energy, storing it for a specific time when it is in excess, that is, thermal energy storage and conversion technology, is a common way to effectively use energy. Compared with sensible heat and phase change heat storage, chemical heat storage has a greater heat storage density, and the form of energy conversion is from thermal ener...

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Problems solved by technology

[0003] However, there are no theoretical studies and engineering applications based on solar chemical heat storage systems that combine multiple functions such as power generation, heating, cooling, and air water intake.

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