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Method for processing collecting tube of heat exchanger

A processing method and heat exchanger technology, applied in the direction of heat exchange equipment, etc., can solve the problems of large punch press investment, complicated mold replacement, poor mold versatility, etc., achieve simple operation process, save mold costs, stamping equipment costs and operating costs Effect

Inactive Publication Date: 2009-12-02
JIANGSU KANGTAI HEAT EXCHANGE EQUIP ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned processing method has the following defects: poor versatility of the mold, hole spacing and hole size cannot be adjusted, a mold can only produce blank tubes shorter than the maximum processing size of the mould, and the length of the processed header is limited (currently can be processed The longest size is 1300mm), the product is poor in flexibility, and the cost of the mold is high; the investment of the punching machine matched with the mold is large; the mold replacement is complicated and time-consuming; the manifold is easy to bend and deform after processing

Method used

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  • Method for processing collecting tube of heat exchanger
  • Method for processing collecting tube of heat exchanger

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Depend on figure 1 The schematic diagram of the structure of the all-aluminum brazed heat exchanger can be seen. Usually, the heat exchanger is assembled by the cover 1, the header 2, the flat tube 3, and the spacer 5. During production, one side of the header is first assembled according to the set The hole spacing and hole size of the flow tube are punched with a punching knife, and then the flat tube 3 is inserted into the punched hole of the flow tube, and sealed by brazing.

[0020] figure 2 It is a schematic diagram of the processing method of the header, as can be seen from the figure, the processing method of the header for the heat exchanger:

[0021] 1) The manifold 3 is limited between the demoulding block 8 and the lower base 9, one or more pairs of punching knives 7 are placed vertically directly above the manifold 3, and...

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Abstract

The invention provides a method for processing a collecting tube of a heat exchanger, which is characterized in that: 1) the collecting tube is limited between a demoulding press block and a lower base, one or more sets of punching knives are arranged in the vertical direction right above the collecting tube, and one end of the collecting tube is connected with a slide block; and 2) when the punching knives press downward, and after one or more punching holes are punched, the punching knives move upward to be lifted, the slide block drives the collecting tube to move toward the front end, by taking the hole spacing of the collecting tube as a stepping stroke, when the collecting tube reaches the punching position of the next punching hole, the punching operation is repeated until all punching holes are punched. The inside of the collecting tube is provided with a core rod in order to avoid the inward caving of the punching holes. The method has the advantages that: the operating process is simple; and the size of the punching knives can be flexibly replaced according to the actual size of the punching holes, and the hole spacing of the punching holes is adjusted by the stepping distance of the slide block, so that the method is suitable for processing collecting tubes of the heat exchangers in different specifications as well as the mechanical mass production, and simultaneously saves a great deal of mould cost, punching equipment cost and operational cost.

Description

technical field [0001] The invention relates to the technical field of processing headers for heat exchangers, in particular to a flexible processing method for headers of all-aluminum brazing heat exchangers. Background technique [0002] Traditional household and commercial air-conditioning systems use mechanical expansion tube heat exchangers (commonly known as tube-fin heat exchangers) composed of round copper tubes and aluminum foils. This traditional heat exchanger has the advantages of low equipment investment and easy production. However, this kind of heat exchanger has disadvantages such as low heat exchange efficiency and large consumption of materials. As countries around the world pay more and more attention to energy crisis and environmental issues, the global air-conditioning industry has become more efficient, energy-saving, and environmentally friendly. As a key component for exchanging heat in air-conditioning systems, traditional tube-fin heat exchangers ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D28/28B21D53/06
Inventor 江秋良刘友明张爱华
Owner JIANGSU KANGTAI HEAT EXCHANGE EQUIP ENG
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