Flat pipe type phase change heat storage device

Abstract

The invention discloses a flat pipe type phase change heat storage device, and belongs to the technical field of phase change heat storage. The flat pipe type phase change heat storage device mainly comprises a heat storage core component flat pipe assembly, a heat storage device box, a phase change material and a heat storing and releasing loop. The flat pipe assembly is arranged in the heat storage device box. Each flat pipe is of a cavity structure formed through parallel sealing of two flat plates serving as heat exchange faces. The interior of the cavity structure is divided into a plurality of sealed cavities. Each sealed cavity is filled with the phase change material. Fins are arranged on the whole outer surfaces of the two flat plate heat exchange faces. In the flat pipe assembly, the multiple flat pipes are stacked together in parallel, and in other words, the flat plate heat exchange faces are stacked in parallel. Gas channels are formed between the fins. The air side heat exchange area is greatly increased, and the phase change heat storing and releasing rate and efficiency are obviously improved.

Description

technical field [0001] The invention relates to a phase change heat storage device, in particular to a set of high-efficiency phase change heat storage device using air as a heat exchange medium, belonging to the technical field of phase change heat storage. Background technique [0002] Since entering the 21st century, with the rapid development of the global economy, people have higher and higher requirements for living standards and the building environment, which has led to a sharp increase in energy consumption worldwide, and the resulting energy crisis and environmental problems have become increasingly serious. Therefore, how to effectively use energy has become a global topic. Heat storage technology can store the discontinuous and unstable heat energy emitted by solar heat collection and many industrial processes, which can well solve the mismatch problem of heat energy supply and demand in terms of time and intensity. Due to its advantages of high heat storage den...

AI Technical Summary

Problems solved by technology

However, in some specific occasions, such as solar air collectors, flue gas waste heat recovery, and building heating, air is used as the heat transfer medium, and these fields also have heat storage requirements. If water is used as the heat transfer medium, it needs Adding a secondary heat exchange device not only complicates the structure of the entire system, but also reduces the thermal efficiency of the system. This new type of flat tube phase change heat storage device meets the application requirements of directly using air as the heat exchange medium

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