2results about How to "Improve heat release efficiency" patented technology

The application belongs to the technical field of energy storage equipment, and provides an energy storage heat exchange structure and method, which comprises a heat exchange structure monomer and a folding mechanism, and a plurality of heat exchange structure monomers are arranged in an array, each heat exchange structure monomer comprises a flow equalizing pipe, a medium pipe, a heat exchange pipe and a fin; the flow equalizing pipe is in communication with both ends of the heat exchange pipe, and the medium pipe is in communication with the flow equalizing pipe; a plurality of fins are installed on one surface of the heat exchange pipe, the folding mechanism is connected with all the heat exchange structure monomers, and is used for adjusting the spacing between adjacent heat exchange structure monomers. In the energy storage process, the spacing between the heat exchange structure monomers is reduced to extrude the solid phase change material, so that the solid phase change material is ensured to be in close contact with the heat exchange component, and the heat absorption capacity in the heat storage process is enhanced. In the heat release operation, the spacing between the heat exchange structure monomers is increased, which is beneficial to the heat convection of the liquid phase change material, improves the heat release efficiency, and makes the energy release of the phase change material more sufficient.

This application relates to the field of air conditioner technology and discloses a microchannel heat exchanger and an air conditioner. The microchannel heat exchanger includes: multiple flat tubes, two manifolds, and at least one reversing valve. The reversing valve includes a valve body and a valve core. The valve core is configured to slide between a first position and a second position under the pressure of a fluid. When the valve core is in the first position, it blocks the first fluid inlet, and the second fluid inlet is connected to the fluid outlet. When the valve core is in the second position, it blocks the second fluid inlet, and the first fluid inlet is connected to the fluid outlet. In this application, the reversing valve changes the number of parallel flow paths of the flat tubes by allowing the refrigerant to flow in different directions in the flat tubes and manifolds. When the microchannel heat exchanger is used as an evaporator, the number of parallel flow paths of the flat tubes can be increased step by step, reducing pressure drop and improving heat absorption. When used as a condenser, the number of parallel flow paths of the flat tubes can be decreased step by step, increasing the refrigerant flow rate and improving heat release.