Heat exchange tube, heat exchanger and heat pump air conditioning unit
A technology of heat exchange tubes and heat exchangers, which is applied in the fields of heat exchangers, heat pump air conditioners, and heat exchange tubes, and can solve problems such as hindering the heat exchange efficiency of microchannel heat exchangers, uneven heat exchange in flow channels, and poor practicability , to achieve the effect of reliable welding, small size and low cost
Pending Publication Date: 2019-05-03
李社红
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Problems solved by technology
[0002] Multi-channel flat tubes with equal flow cross-sectional area have higher heat exchange efficiency than single-hole round tubes, which is the consensus of technicians in the field of heat exchange. The width, thickness, channel diameter, and channel spacing of multi-channel flat tubes The miniaturization of the size has become the direction of research and application in the field of heat exchange; The flow of each flow channel inside the heat pipe is not controlled and adjusted, and the heat transfer of the flow channels at different positions is extremely uneven, which hinders the improvement of the heat exchange efficiency of the microchannel heat exchanger; on the other hand, the integrated multi-media heat exchange can reduce Small heat exchanger volume, improved heat exchange efficiency, and heat recovery and utilization of multi-media heat exchange. CN205403264U discloses a heat exchanger that uses two flat tubes to achieve three-medium heat exchange, but the efficiency is low, Poor practicability; how to design a simple and efficient multi-media heat exchanger is also a difficult problem in this field
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[0032] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0033] A specific embodiment of a heat exchange tube of the present invention is as follows figure 1 , figure 2 , image 3 shown.
[0034] In this specific embodiment, the heat exchange tube 1 includes an end surface 11a at the head end, an end surface 11b at the tail end, a first heat exchange surface 12a, a second heat exchange surface 12b, and a plurality of flow channels 13 extending along the length direction inside the heat exchange tube 1 .
[0035] In this specific embodiment, each of the flow channels 13 is provided with a flow channel opening at the head end and tail end of the heat exchange tube 1 for the inflow or outflow of the heat exchange fluid; according to the position and direction of the flow channel opening, the The plurality of flow channels 13 are divided into three flow channel groups: a first flow channel group 131 , a seco...
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The invention discloses a heat exchange tube, a heat exchanger and a heat pump air conditioning unit. A method of grouping flowing channels in the heat exchange tube is adopted, the size of the hole diameter of each flow dividing hole channel is designed by a taking flowing channel group of the heat exchange tube as a basic design unit, the flow and the pressure of heat exchange fluid flowing intoeach liquid uniformizing cavity from a flow collecting tube are precisely controlled, and the purpose that all the flowing channels of the heat exchange tube achieve uniform heat exchange is achieved; uniform heat exchange between multiple heat exchange processes of a single heat exchange medium in the heat exchange tube and external medium reverse flow is achieved, and recycling heat exchange among multiple media in the heat exchange tube and heat exchange between the multiple media in the heat exchange tube and an external medium are achieved. Multiple flowing channel ports of each group ofthe flowing channels share an interface for guiding out, the group spacing distance between every two adjacent flowing channel groups is large, therefore, the shared interface can be conveniently guided out by adopting an existing machining technology, and reliable welding is achieved. The heat exchanger and the heat pump air conditioning unit which comprise the heat exchange tube are high in efficiency, small in size and low in cost.
Description
technical field [0001] The invention relates to the technical field of heat exchange and heat pump air conditioners, in particular to a heat exchange tube, a heat exchanger and a heat pump air conditioner unit. Background technique [0002] Multi-channel flat tubes with equal flow cross-sectional area have higher heat exchange efficiency than single-hole round tubes, which is the consensus of technicians in the field of heat exchange. The width, thickness, channel diameter, and channel spacing of multi-channel flat tubes The miniaturization of the size has become the direction of research and application in the field of heat exchange; The flow of each flow channel inside the heat pipe is not controlled and adjusted, and the heat transfer of the flow channels at different positions is extremely uneven, which hinders the improvement of the heat exchange efficiency of the microchannel heat exchanger; on the other hand, the integrated multi-media heat exchange can reduce Small ...
Claims
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IPC IPC(8): F28F1/02F28F9/02F25B39/00F28F9/04
CPCF28F1/02F25B39/00F28F9/02F28F9/04
Inventor 李晓光张亚丽李社红谢小龙袁振红王国峰
Owner 李社红