Sanhua (hangzhou) Micro Channel Heat Exchange Co., Ltd

Danfoss A/s

Sanhua (hangzhou) Micro Channel Heat Exchanger Co., Ltd.

Yanxing Li

Qiang Gao

Lin-Jie Huang

Linjie Huang

Ningjie Huang

A method for manufacturing a refrigerant guide tube of a heat exchanger and a refrigerant guide tube manufactured using the method and a heat exchanger with the refrigerant guide tube are disclosed. The refrigerant guide tube includes tube body and channels extending through a wall of the tube body. The tube body is formed by a butt joint of side edges of more than one bar-shaped plate materials along the length direction. The method allows forming the refrigerant channels of the guide tube before or during forming the tube body when the method is used to manufacture the guide tube, so as to avoid directly forming the channels on the tube body and make the process of manufacture the guide tube simpler and more convenient.

Method for manufacturing refrigerant guide tube of heat exchanger, refrigerant guide tube manufactured using the method and heat exchanger with the refrigerant guide tube

A heat exchanger comprises a first header (), a second header () spaced apart from the first header () by a predetermined distance, flat tubes () each of which defines two ends connected to the first and second headers (), respectively, to communicate the first and second headers (), fins () interposed between adjacent flat tubes (), and a flow member defining a fluid-flow passage and forming a partition-wall-type heat-exchanging unit with the second header (). A refrigeration system comprises a compressor, a condenser, a throttle device, and an evaporator that is the heat exchanger. The compressor, condenser, throttle device, and evaporator are connected sequentially, and at least part of refrigerant flowing out of an outlet of the condenser enters into the flow member to exchange heat with a refrigerant flowing out of an outlet of the evaporator.

Heat exchanger

An evaporator () comprises a first header () defining one end formed with a first refrigerant port (), a second header () defining one end formed with a second refrigerant port (), heat-exchange tubes () each connected between the headers () to communicate the headers (), fins () respectively interposed between adjacent heat-exchange tubes (), and a defrosting tube () defining a first end connected to one of the headers () to communicate with an interior of the one header. A position of the first end of the defrosting tube () is spaced apart from the one end of the one header by a predetermined distance. A refrigeration system comprises the evaporator. By providing the defrosting tube (), defrosting speed is increased, defrosting time is shortened, and energy efficiency of the refrigeration system is improved.

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Hangzhou, China

Yanxing Li