Multi-stage injection-type line focus solar absorption reactor

Abstract

The invention discloses a multi-stage injection-type line focus solar absorption reactor for middle and low temperature solar thermochemistry. The reactor includes a line focus reflective mirror array, variable diameter absorption reaction tubes and an injection pipe. The variable diameter absorption reaction tubes are arranged in a plurality of mirrors among the reflective mirror array; part of the reactant enters the absorption reaction tubes from the inlets on the ends of the reaction tubes, and the remaining reactant is injected into the absorption reaction tubes in a multi-stage way through the injection pipe along the tube; after entrance into the reaction tubes, the reactant is heated by the solar focused by the line focus reflective mirror array, and generates endothermic reaction under the catalyst condition, so as to convert solar energy into chemical energy of the resultant and improve response reactant grade. The invention improves the chemical processes and apparatus, so that the structure reasonably matches the parameters such as specific reaction characteristics and working fluid status in the absorption reaction tubes. The reactor achieves the efficient energy transfer and transformation, improves the overall reaction efficiency and reduces the overall energy consumption.

Description

technical field [0001] The invention relates to the technical field of thermochemical utilization of medium and low temperature solar energy at 300°C to 500°C, in particular to a multi-stage injection type line focusing solar energy absorption reactor. Background technique [0002] Due to the increasing demand for energy due to social development, coupled with the increasing environmental pollution caused by fossil energy, vigorously developing renewable energy has become an urgent need for our country. [0003] With its unlimited reserves and clean development and utilization, solar energy has become one of the effective ways to solve the problems of energy shortage, environmental pollution and greenhouse effect caused by the development and utilization of fossil energy. Solar thermochemistry realizes the chemical energy storage of solar energy and solves the inherent defects of intermittent, discontinuous and low energy flux density of solar energy. [0004] Solar thermoc...

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Problems solved by technology

[0008] In view of this, the main purpose of the present invention is to provide a multi-stage injection type line-focused solar energy absorption reactor to solve the problem that the reaction rate gradually decreases along the tube path due to the reduction of the partial pressure of the reactants in the current line-line focused solar thermochemical device. question

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