A phase change heat storage type solar thermochemical reaction device

Abstract

The invention discloses a phase change heat storage type solar thermal chemical reaction device, which comprises a material storage tank, a mixer, a material pump, a phase change heat storage type chemical reactor, a trough mirror, a single axis tracking system, a separator and a control system. The phase change heat storage type solar thermal chemical reaction device can effectively alleviate theadverse effects of solar radiation fluctuations on thermochemical reactions, increase the reaction rate and conversion efficiency of thermochemical reactions and alleviate the thermal shock phenomenon, and the adaptability of the thermal chemical reactor is greatly improved under different solar radiation characteristics. The solar thermal chemical reaction device has a simple structure and easyprocessability, can be applied in a large scale, and has no pollution to the environment as using solar energy as a source. The solar thermal chemical reaction device adopts various energy storage materials, such as methanol, natural gas and other fossil fuels, reaction products can be used as chemical raw materials and high-energy-density fuels, and the solar thermal chemical reaction device canbe popularized and applied in various industrial fields.

Description

technical field [0001] The invention belongs to the field of solar thermal energy storage and utilization, and in particular relates to a phase change thermal storage type solar thermochemical reaction device. Background technique [0002] Solar energy has the advantages of being clean, non-polluting, and rich in resources, and is of great significance for solving the environmental problems and energy crisis facing the current society. However, solar energy has the characteristics of discontinuity and instability. Effective energy storage methods are needed to solve the problem of time and space mismatch in energy utilization and effectively improve energy utilization efficiency. Thermochemical reaction energy storage has the advantages of high energy storage density and long storage time, and has great development potential. [0003] However, the thermochemical reaction has strict requirements on temperature, and it needs to be carried out under a certain narrow reaction t...

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Problems solved by technology

However, transient characteristics such as solar fluctuations will affect the temperature stability of the heat absorber, causing the catalyst to be constantly "ignited" and "extinguished", resulting in low subsequent reaction efficiency and even causing heat to the reactor material. impact, increasing the risk of shutting down, which is extremely detrimental to the long-term safe and stable operation of the reactor, so the traditional industrial thermochemical reactor is not suitable for the solar thermochemical reaction process, and some thermochemical reactors need to be modified according to the characteristics of solar energy. Modifications to achieve efficient solar thermochemical reaction processes

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