Heat exchange system

Abstract

The invention discloses a heat exchange system which comprises at least one heat exchanger. The heat exchanger comprises a first collecting pipe and a second collecting pipe, multiple heat exchange pipes used for circulation of a first heat exchange medium and spacing parts, wherein two ends of each of heat exchange pipes are connected to the first collecting pipe and the second collecting pipe respectively, each of the heat exchange pipes comprises at least three straight sections and at least two bent sections, the multiple heat exchange pipes are arranged to form multiple heat exchange units, and the straight sections of each of the heat exchange pipes of the same heat exchange unit are mutually parallel; each of the spacing parts is disposed between the adjacent heat exchange pipes ofthe same heat exchange unit, the spacing part between the adjacent heat exchange pipes are disposed at an interval along the length direction of the heat exchange pipes and thus a through hole is formed; and a flow direction of a second heat exchange medium which passes through the through hole is not parallel with the straight sections, so the second heat exchange medium successively flows through the different straight sections of each of the heat exchange pipes. The heat exchange system disclosed by the embodiment of the invention is characterized in that heat exchange is mainly realized bythe heat exchange pipes and has the beneficial effects that heat exchange efficiency is high; heat exchange capability is high, etc.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a heat exchange system. Background technique [0002] In the field of air conditioning and refrigeration, the commonly used air heat exchanger is a copper tube fin heat exchanger. The main components of the heat exchanger include circular heat exchange tubes and flat fins interspersed on the heat exchange tubes. The refrigerant mainly exchanges heat through the fins. [0003] However, there is a heat transfer temperature difference between the heat exchange tube and the fin, and the heat exchange efficiency will be lost. After the heat exchanger is used for a long time, a gap will be formed at the connection between the fin and the heat exchanger, resulting in a decrease in heat exchange efficiency. [0004] In addition, the size of the airflow channel between adjacent fins is limited. When the surface of the heat exchanger is frosted, the frost layer on the surface of the...

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Problems solved by technology

[0003] However, there is a heat transfer temperature difference between the heat exchange tube and the fins, and the heat exchange efficiency will be lost. After the heat exchanger is used for a long time, there will be a gap at the connection between the fins and the heat exchanger, resulting in a decrease in heat exchange efficiency.

[0004] In addition, the size of the airflow channel between adjacent fins is limited. When the surface of the heat exchanger is frosted, the frost layer on the surface of the fins will become thicker and thicker with time, gradually blocking the air flow gap. , the heat transfer performance continues to decline. After entering the defrosting condition, the area of ​​the air flow channel decreases, which affects the heat transfer efficiency

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