Manufacture method of micro-channel heat exchanger and device

A micro-channel heat exchanger and a manufacturing method technology, which are applied in the direction of heat exchanger shell, refrigeration and liquefaction, refrigerator, etc., can solve the problems such as failure to weld headers and flat tubes, large energy consumption, virtual welding, etc. Achieve the effect of improving production efficiency, improving drainage and reducing costs

Inactive Publication Date: 2013-06-05
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the binding force is not properly controlled, it is easy to cause false welding or wing drop during the brazing process.
If the furnace temperature is not properly controlled, the header and flat tube will not be welded together
More importantly, the temperature requirements of the brazing furnace are very strict, with the maximum temperature exceeding 600°C, which requires continuous consumption of a large amount of energy

Method used

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  • Manufacture method of micro-channel heat exchanger and device
  • Manufacture method of micro-channel heat exchanger and device
  • Manufacture method of micro-channel heat exchanger and device

Examples

Experimental program
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Embodiment 1

[0031] Such as figure 1 As shown, this embodiment relates to a micro-channel heat exchanger frame 10 comprising: a header 1 and a flat tube 2, wherein the end of the flat tube 2 is inserted into the insertion groove 5 of the header 1 to a fixed depth. Put the micro-channel heat exchanger frame 10 into the cold extrusion die cavity, and apply pressure to the header insertion groove 5 through the punch fixed on the press, so that the aluminum chips at the joint will undergo plastic flow deformation and fill the flat The tube 2 and the collector are inserted into the gap between the groove 5, so that the microchannel heat exchanger frame 10 forms a closed cavity.

[0032] Such as Figure 5 As shown, the microchannel heat exchanger frame 10 is assembled on an assembly station 20. The microchannel heat exchanger frame 10 is placed on the assembly table 20 and clamped and fixed with a positioning clamp 28. The two pairs of comb teeth 27 between the two flat tubes on one side are raise...

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Abstract

The invention discloses a manufacture method of a micro-channel heat exchanger and a device in the technical field of heat exchange devices. Firstly, a framework of the micro-channel heat exchanger is formed through a cold extruding process, then, fins are tightly fixed in the framework of the micro-channel heat exchanger through an assembling mechanism, finally, glue is coated at the contact positions of finned flat tubes, and the micro-channel heat exchanger is manufactured. The micro-channel heat exchanger comprises the framework of the heat exchanger and a plurality of fins, wherein the framework of the heat exchanger is composed of collecting mains and the flat tubes, the fins are arranged on the framework of the heat exchanger, conduits which are used for being inserted into the flat tubes are arranged on the collecting mains and a plurality of micro-channel structures are arranged inside the flat tubes. The manufacture method of the micro-channel heat exchanger and the device solve the problem of high energy consumption in the manufacture process of the micro-channel heat exchanger, production consumption is saved, and cost of the heat exchanger is reduced.

Description

Technical field [0001] The invention relates to a method and device in the technical field of heat exchange devices, in particular to a method and device for manufacturing a microchannel heat exchanger. Background technique [0002] The micro-channel heat exchanger is a high-efficiency heat exchanger made of all aluminum materials. Its flat tube adopts a micro-channel structure, which can strengthen the heat transfer of condensation and boiling, and significantly improve the heat transfer efficiency of the refrigerant; its fins are made of high-efficiency The heat exchange fins are like a louver type, and the window structure can interrupt the air flow boundary layer periodically and at the same time guide the air flow to achieve enhanced heat exchange on the air side. The micro-channel heat exchanger has the advantages of light weight, compact structure and high heat exchange efficiency. It has cost advantages to replace copper materials (national strategic reserve resources); a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/26F25B39/00F28F9/26F28F19/00F28F21/00
Inventor 陈江平刘鹿鸣徐博
Owner SHANGHAI JIAO TONG UNIV
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