Air conditioning system

Abstract

The invention provides an air conditioning system. The air conditioning system comprises a magnetic refrigeration device and a solution dehumidification device. The magnetic refrigeration device comprises a hot end heat exchanger and a cold end heat exchanger. The solution dehumidification device comprises a regenerator and a dehumidifier. The hot end heat exchanger exchanges heat with a regeneration solution entering the regenerator so as to heat the regeneration solution before the regeneration solution enters the regenerator. The cold end heat exchanger exchanges heat with a dehumidification solution entering the dehumidifier so as to cool the dehumidification solution before the dehumidification solution enters the dehumidifier. According to the air conditioning system, the technical indexes of the magnetic refrigeration device can meet the use requirements of an air conditioner, and the practicability of the magnetic refrigeration device is promoted.

Description

technical field [0001] The present application relates to the technical field of magnetic refrigeration, in particular to an air conditioning system. Background technique [0002] Magnetic refrigeration technology is a solid-state refrigeration method based on the magnetocaloric effect. It uses water and other environmentally friendly media as the heat transfer fluid. It has the characteristics of zero greenhouse effect, zero ozone layer destruction, intrinsic high efficiency, low noise and low vibration. Compared with the low-temperature refrigeration field , In the range of room temperature, magnetic refrigeration has a broader application prospect, such as household refrigerators, air conditioners, medical and health services and other fields. Therefore, in the past ten years, the research and development of room temperature magnetic refrigeration technology has been widely valued by countries all over the world, and some remarkable achievements have been made. [0003] ...

AI Technical Summary

Problems solved by technology

For air conditioners, it is necessary to maintain the indoor air dry bulb temperature at 27°C and wet bulb temperature at 19°C when the outdoor air temperature is 35°C. In order to ensure the dehumidification effect, the temperature of the low-temperature heat exchanger is generally required to be about 5°C. Considering Thermal resistance of the heat exchanger, the temperature of the high-temperature heat exchanger is not lower than 45°C, that is, the magnetic refrigeration system is required to achieve a cooling capacity of 2-10kW at a refrigeration temperature span of 40K. However, for the magnetic refrigeration system, a large temperature span is inevitable. This leads to a reduction in cooling capacity, and achieving a larger cooling capacity will lead to a decrease in temperature span, making it difficult for the existing magnetic refrigeration system to meet the above magnetic refrigeration requirements

Therefore, there is still a certain gap between the technical indicators of existing magnetic refrigeration and the demand for large-scale application of air conditioners and other products

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