KR-20260067703-A - ELASTOCALORIC SYSTEM

KR20260067703AKR 20260067703 AKR20260067703 AKR 20260067703AKR-20260067703-A

Abstract

The present invention relates to an elastic heat quantity cooling and heating system, wherein a pair of elastic heat quantity regenerators are provided to repeatedly compress and expand, and a switching valve is operated in conjunction with this, thereby having the effect of being usable for cooling or heating.

Inventors

장지영
김수현
정창현
김경필
백승미

Assignees

엘지전자 주식회사

Dates

Publication Date: 20260513
Application Date: 20241106

Claims (10)

A first regenerator in which cooling water flows inside, heats the cooling water when compressed, and cools the cooling water when expanded; A second regenerator that is extended when the first regenerator is compressed, and is compressed when the first regenerator is extended; A first heat exchanger through which cooling water cooled in the first regenerator and the second regenerator passes; and A second heat exchanger through which cooling water heated in the first regenerator and the second regenerator passes; An elastic heat quantity heating and cooling system including
In paragraph 1, A first switching valve that allows the cooling water to flow to the first heat exchanger while the first regenerator or the second regenerator is cooling the cooling water, and allows the cooling water to flow to the second heat exchanger while the first regenerator or the second regenerator is heating the cooling water; Elastic heat quantity heating and cooling system including further
In paragraph 1, A second switching valve that flows the cooling water passing through the first heat exchanger to the first regenerator while the first regenerator is cooling the cooling water, and flows the cooling water passing through the first heat exchanger to the second regenerator while the second regenerator is cooling the cooling water; Elastic heat quantity heating and cooling system including further
In paragraph 3, The above second switching valve is, An elastic heat quantity cooling and heating system characterized by flowing the cooling water that has passed through the second heat exchanger to the first regenerator while the first regenerator is heating the cooling water, and flowing the cooling water that has passed through the second heat exchanger to the second regenerator while the second regenerator is heating the cooling water.
In paragraph 1, A hydraulic cylinder coupled to the first regenerator and the second regenerator to compress or extend the first regenerator and the second regenerator; Elastic heat quantity heating and cooling system including further
In paragraph 5, The above hydraulic cylinder is, An elastic heat quantity cooling and heating system characterized by compressing the second regenerator when the first regenerator is extended, and compressing the first regenerator when the second regenerator is extended.
In paragraph 5, A fixed part coupled to one side of the first regenerator and the second regenerator to support the first regenerator and the second regenerator; Elastic heat quantity heating and cooling system including further
In paragraph 1, A first regenerator pipe communicating with one side of the first regenerator; A second regenerator pipe communicating with one side of the second regenerator; A third regenerator pipe communicating with the other side of the first regenerator; A fourth regenerator pipe communicating with the other side of the second regenerator above; A first connecting pipe communicating with one side of the first heat exchanger; A second connecting pipe communicating with one side of the second heat exchanger; A third connecting pipe communicating with the other side of the first heat exchanger; A fourth connecting pipe communicating with the other side of the second heat exchanger; A first switching valve that connects the first regenerator pipe to either the first connecting pipe or the second connecting pipe, and connects the second regenerator pipe to the other of the first connecting pipe or the second connecting pipe; and A second switching valve that connects the third regenerator pipe to either the third connecting pipe or the fourth connecting pipe, and connects the fourth regenerator pipe to the other of the third connecting pipe and the fourth connecting pipe; Elastic heat quantity heating and cooling system including further
In paragraph 8, A hydraulic cylinder coupled to the first regenerator and the second regenerator to compress or extend the first regenerator and the second regenerator; Includes more, The above-mentioned first switching valve is, An elastic heat quantity cooling and heating system characterized by switching the connection of the piping when the above hydraulic cylinder switches the compression direction.
In Paragraph 9, The above second switching valve is, An elastic heat quantity cooling and heating system characterized by switching the connection of the piping in conjunction with the first switching valve above.

Description

Elastic Thermal Energy Heating & Cooling System The present invention relates to an elastic heat quantity heating and cooling system, and more specifically, to a heating and cooling system comprising an elastic heat quantity regenerator capable of heating and cooling a fluid through the compression and elongation of a shape memory alloy. In general, low-temperature heat below 100 degrees Celsius is energy that can frequently be emitted during industrial processes, power generation, and transportation. Therefore, the recovery and reuse of these emissions are important for energy efficiency. In this regard, thermoelectric generators (TEGs) have been developed, but they have the limitation of being relatively expensive. Regarding methods for recovering this energy, a new approach utilizing shape memory alloys (SMAs) is available. Shape memory alloys (SMAs) are alloys that retain their initial shape formed by cold forging; once deformed, they return to their shape prior to heating. This material is a lightweight solid that can be applied to conventional actuators in hydraulic, pneumatic, and motor-based systems. Due to the characteristics of these materials, shape memory alloys (SMAs) can be used to construct SMA engines capable of recovering kinetic energy from thermal energy. In this regard, International Patent Publication WO 2022/171843A1 discloses an energy recovery device and an energy recovery method using SMA. The above energy recovery device is equipped with an engine that operates by connecting a plurality of SMA elements to a drive mechanism, and a compression device that applies compression mechanical power to the SMA elements. At this time, the SMA element stacks multiple plates vertically and is equipped with ports for passing fluid through the multiple plates, so that the compression device operates in a manner that compresses the fluid. However, the energy recovery device described above has limitations in that it requires high manufacturing costs because it must apply high pressure by stacking a large amount of SMA. FIG. 1 is a perspective view illustrating an elastic heat energy regenerator according to one embodiment of the present invention. FIG. 2 is a perspective view illustrating the case where the plate is square in an elastic heat quantity regenerator according to one embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating an elastic heat quantity regenerator according to one embodiment of the present invention. FIG. 4 is a front view illustrating the state in which a fluid passage hole is formed in a plate in an elastic heat quantity regenerator according to one embodiment of the present invention. FIG. 5 is a perspective view illustrating an elastic heat quantity regenerator according to another embodiment of the present invention. FIG. 6 is a perspective view illustrating a state in which a plurality of tubes are provided in an elastic heat quantity regenerator according to another embodiment of the present invention. FIG. 7 is a perspective view illustrating the state in which a holder is coupled in an elastic heat quantity regenerator according to another embodiment of the present invention. FIG. 8 is a cross-sectional view illustrating an elastic heat quantity regenerator according to another embodiment of the present invention. Figure 9 is a cross-sectional view of Figure 7. FIG. 10 is a front view illustrating a tube holder portion in an elastic heat quantity regenerator according to another embodiment of the present invention. FIG. 12 is a perspective view illustrating a clamp in an elastic heat quantity regenerator according to another embodiment of the present invention. Fig. 13 is a cross-sectional view of Fig. 12. FIGS. 14 and 15 are schematic diagrams for explaining an elastic heat quantity heating and cooling system according to one embodiment of the present invention. FIGS. 16 and 17 are schematic diagrams for illustrating an elastic heat quantity heating and cooling system according to another embodiment of the present invention. Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be interpreted to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. In describing the present invention, terms such as "first," "second," etc., may be used to describe various components, but said components may not be limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second componen