Magneto-calorific system

Abstract

The invention discloses a magneto-calorific system, comprising a heat energy collecting device used for collecting heat energy, a heat energy transmission device used for transmitting heat energy, a magneto-calorific machine set used for converting heat energy into mechanical energy and outputting the mechanical energy, and a heat dissipating system used for exhausting residual heat; the heat energy collecting device and the magneto-calorific machine set are connected through the heat energy transmission device, and the magneto-calorific machine set and the heat dissipating system are connected through the heat energy transmission device; and the magneto-calorific machine set comprises at least one magneto-calorific machine unit used for converting heat energy into mechanical energy, and a power shaft connected with the magneto-calorific machine unit, and the magneto-calorific machine unit drives the power shaft to rotate. The magneto-calorific system is operated in the medium and low temperature region, is low in cost, simple to manufacture, long in service life and is suitable for large-scale construction and production.

Description

technical field [0001] The invention relates to a heat energy utilization device, in particular to a magneto-caloric system for converting heat energy of a heat source at 20°C to 200°C into mechanical energy. Background technique [0002] Solar energy is a renewable green energy that is widely used in people's life, work and production. One of the applications of solar energy is to convert solar energy into electrical energy, such as solar cells; another application is the utilization of light and heat. For example, direct use of the sun's thermal radiation to produce hot water. At present, the relatively mature solar thermal power generation technology with large-scale application, its working principle is to use large-area reflectors to gather sunlight, directly or indirectly burn water until it boils to high-temperature water vapor above 300 degrees, and then drive a steam turbine for generate electricity. [0003] At present, solar thermal power generation in the world...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a magnetocaloric system that directly converts the thermal energy of a heat source at 20°C to 200°C into mechanical energy, aiming to solve the problem that large-scale solar energy utilization systems in the prior art are easily affected by environmental conditions, construction costs, High operating cost and maintenance cost, low energy conversion efficiency, high loss and other technical problems

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