Cold end reciprocated-heat-exchanging-to-one-way-heat-exchanging reversing valve for combined type indoor temperature magnetic refrigerator

Abstract

The invention discloses a cold end reciprocated-heat-exchanging-to-one-way-heat-exchanging reversing valve for a combined type indoor temperature magnetic refrigerator. The cold end reciprocated-heat-exchanging-to-one-way-heat-exchanging reversing valve comprises valve bodies, a rotation inner core, a compression device and a gear; the rotation inner core is arranged between the two valve bodies, and the compression device surrounds the outer sides of the two valve bodies to fix the two valve bodies together; openings of first longitudinal holes and second longitudinal holes of the valve bodies are located in the outer end faces and the inner end faces of the valve bodies; first spiral through holes of the valve bodies are used for connecting the first longitudinal holes with the inner end faces, and second spiral through holes of the valve bodies are used for connecting the second longitudinal holes with the inner end faces; fixing grooves are formed in the outer end faces of the valve bodies, and fixing countersinks are arranged on the inner end faces; the rotation inner core is provided with a first fan-shaped through hole and a second fan-shaped through hole in the axial direction, rotating shafts are arranged at the axes of the upper end face and the lower end face of the rotation inner core and are installed in the fixing countersinks in the valve bodies in the upper and lower sides; and the gear is arranged on a cylindrical face of the outer side of the rotation inner core. By means of the cold end reciprocated-heat-exchanging-to-one-way-heat-exchanging reversing valve, the heat exchange efficiency can be improved, and the refrigerating capacity of the refrigerator is promoted.

Description

technical field [0001] The invention relates to a reversing valve at the cold end of a composite room-temperature magnetic refrigerator, in particular to a reciprocating heat-exchanging one-way heat-exchanging reversing valve at the cold end of a composite room-temperature magnetic refrigerator. 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 pollution...

AI Technical Summary

Problems solved by technology

The refrigeration bed of the refrigerator adopts AMR cold storage technology. The heat exchange fluid inside the refrigeration bed needs to be reversed in each refrigeration cycle. Therefore, the fluid flow in the heat exchange tube of the cold end heat exchanger is a reciprocating flow, and the heat transfer is greatly restricted.

[0006] The composite room temperature magnetic refrigerator adopts the inner and outer annular nested magnetic field system, which can effectively increase the operating frequency of the refrigerator on the basis of satisfying the magnetic field strength. However, since the refrigeration bed of the refrigerator adopts AMR cold storage technology, the refrigeration system must realize The flow direction of the heat exchange fluid is switched, so that the fluid flow in the heat exchange tube of the cold end heat exchanger is a reciprocating flow, resulting in the length and arrangement of the heat exchange pipeline at the cold end being constrained by the volume of the heat exchange fluid in each refrigeration cycle, which affects the heat exchange. efficiency, so it is necessary to design and manufacture a new type of reversing valve that matches the cold end of the existing refrigerator to change the fluid flow form in the cold end heat exchange tube, and then more reasonably and fully arrange the cold end heat exchange pipeline to increase the heat exchange area , improve the heat transfer efficiency and improve the cooling capacity of the refrigerator

Images