Composite type room temperature magnetic refrigeration system and direction control valve thereof

Abstract

The invention discloses a composite type room temperature magnetic refrigeration system and a direction control valve thereof. The direction control valve comprises a valve body and a valve element which rotate relatively; the valve body is provided with a valve body pump hole, a valve body hot end hole, a valve body liquid storage box hole, a valve body clockwise rotation magnetic hole and a valve body reversion magnetic hole, wherein the valve body pump hole and the valve body hot end hole oppositely extend in the direction of the rotating axis, and the valve body liquid storage box hole, the valve body clockwise rotation magnetic hole and the valve body reversion magnetic hole are formed in a staggered manner in the circumferential direction; the valve element is provided with a valve element pump flow channel and a valve element hot end flow channel which are arranged in a staggered manner in the circumferential direction; when the refrigeration system is in a first heat exchange mode; the valve body pump hole is communicated with the valve body clockwise rotation magnetic hole through the valve element pump flow channel, and the valve body hot end hole is communicated with the valve body reversion magnetic hole through the valve element hot end flow channel; when the refrigeration system is in a second heat exchange mode, the valve body pump hole is communicated with the valve body reversion magnetic hole, and the valve body hot end hole is communicated with the valve body clockwise rotation magnetic hole; and when the refrigeration system is in a first and second non-heat-exchange mode, the valve body pump hole is communicated with the valve body liquid storage box hole. The direction control valve effectively reduces the extra power consumption on the basis of meeting various technical performance indexesof a refrigerating machine, improves the efficiency of the refrigerating machine, and makes the overall structure compact and noise low.

Description

technical field [0001] The invention relates to the technical field of heat exchange medium flow direction switching control in a composite room temperature magnetic refrigeration system, in particular to a composite room temperature magnetic refrigeration system and a direction control valve thereof. Background technique [0002] Refrigeration technology is widely used in people's daily life, industry, agriculture and other fields. The refrigeration industry consumes a lot of energy. The gas compression refrigeration technology currently used has some disadvantages such as high energy consumption, low efficiency, and the exhaust gas destroys the ozone layer of the atmosphere and causes the greenhouse effect. The refrigeration industry is a big energy consumer and polluter, and it is one of the projects that require energy conservation and emission reduction. Therefore, research and development of a new type of refrigeration technology with low energy consumption and no pol...

AI Technical Summary

Problems solved by technology

[0009] However, in practical applications, the traditional composite room temperature magnetic refrigeration system uses multiple electromagnetic shut-off valves to control the switching of the flow direction of the heat transfer medium. The solenoid valves require additional power supply, and the solenoid valves are large in size and the switch is noisy.

Therefore, the traditional composite room temperature magnetic refrigeration system has the problems of high energy consumption, high noise, and cumbersome overall structure.

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