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Curved heat exchanger

A heat exchanger, arc-shaped technology, applied in the field of refrigeration, can solve the problems of wind wheel fluctuation, increased backflow at the outlet, affecting the performance of the fan, etc.

Inactive Publication Date: 2003-12-10
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The direction of the airflow before flowing into the cross-flow wind rotor is mainly constrained by the structure of the heat exchanger, resulting in a large change in the inlet angle of the wind rotor inlet, forming a certain winding speed of the inlet airflow, which affects the performance of the fan
Due to the different speeds of the intake airflow in different parts of the cross-flow wind rotor, there is a certain air pressure difference in the intake air flow in different areas of the indoor unit. Noise, and the increase of the vortex also increases the return flow at the outlet, thereby reducing the air volume

Method used

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Embodiment Construction

[0008] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0009] Such as figure 1 , As shown in Figure 2, the windward side and the leeward side of the arc heat exchanger are arc-shaped curved surfaces. The arc heat exchanger mainly includes two parts: heat exchange fins 1 and heat exchange tubes 2 . The heat exchange tubes 2 are double-row circular straight tubes, and the tubes are connected by tube joints. The arc center of the arc 3 on the windward side of the heat exchange fin 1 is consistent with the arc center of the arc 4 on the leeward side, and coincides with the axis of the cross-flow wind wheel of the indoor unit of the air conditioner, so as to ensure that the distance from each position of the arc to the cross-flow wind wheel is consistent . The arc angle θ depends on the inlet angle of the cross-flow fan in the air conditioner. The larger the inlet angle is, the larger θ is, an...

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Abstract

The curved heat exhanger mainly includes heat exchanging tubes and heat exhanging fins, the windward side and lee side of the curved heat exchanger are made into the form of curved surface, and the circular arc of windward side and circular arc of lee side of the heat-exchanging fin are identical in arc centre, and coincided with axle centre of through-flow wind wheel of indoor machine of air-conditioner so as to ensure that the distances from all the place positions of circular arc to through-flow wind wheel are identical. The described heat-exchanging tubes are divided into two rows of straight tubes, between tube and tube they are connected by means of pipe connector. Said invented heat exchanger can improve air intake condition and air intake direction.

Description

Technical field: [0001] The invention relates to a heat exchanger, in particular to an arc-shaped heat exchanger capable of improving the flow field in an air conditioner indoor unit, reducing the noise of the air conditioner and increasing the air volume, and belongs to the technical field of refrigeration. Background technique: [0002] Heat exchangers are an essential part of home air conditioners. Especially in the indoor unit, the structure of the heat exchanger can not only adjust the heat exchange with the air in the indoor unit, but also is very important to control the air volume and aerodynamic noise of the indoor unit. At present, most of the research on heat exchangers is mainly focused on its heat transfer function, for example, opening slits on the fins of the heat exchanger to enhance heat transfer, etc., and considering the performance of the heat exchanger from the aspects of increasing air volume and reducing noise Structural design is still relatively sma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/30
Inventor 丁国良胡俊伟张春路
Owner SHANGHAI JIAO TONG UNIV
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