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Collecting main and heat exchanger with same

A technology of collecting tubes and heat exchange tubes is applied in the field of collecting tubes and heat exchangers with collecting tubes, which can solve the problems of high cost of high-frequency welded tubes, and achieve high cost, high reliability and convenient processing. Effect

Active Publication Date: 2013-06-12
DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a header and a heat exchanger with the header, thereby for example solving the problem of high cost of high-frequency welded pipes and improving heat exchange performance

Method used

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  • Collecting main and heat exchanger with same
  • Collecting main and heat exchanger with same
  • Collecting main and heat exchanger with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like figure 1As shown, a heat exchanger 100, such as a microchannel heat exchanger, in accordance with an embodiment of the present invention includes: headers 1, 7 (eg, inlet header 1 and outlet header 7); exchangers such as flat tubes Heat pipes 2 ; fins 5 arranged between the heat exchange pipes 2 ; and side plates 3 . Heat exchangers can be used in HVAC, automotive, refrigeration and transportation fields, and can be used as heat exchangers such as evaporators, condensers and water tanks. The ends of the heat exchange tubes 2 are in fluid communication with the refrigerant distribution cavity 19 of the header. The collector tube 1 has a plurality of openings arranged in the axial direction formed in the tube wall of the collector tube, and the end of the heat exchange tube 2 has steps, for example, in the axial direction of the heat exchange tube 1 In the direction, a step is formed at a predetermined distance from the end face of the end of the heat exchange tube...

Embodiment 2

[0055] like image 3 As shown, Embodiment 2 according to the present invention is further improved on the basis of Embodiment 1. Specifically, the first part 11 further includes a protrusion 116, the protrusion 116 is formed on the partition wall part 114, for example, on the surface of the partition wall part 114 facing the refrigerant distribution cavity 19 and is connected with the first part. The two arcuate wall portions 113 are spaced apart by a predetermined distance. The distance may be approximately equal to the thickness of both ends of the arcuate wall portion of the second member 12 , whereby the two ends of the arcuate wall portion of the second member 12 are inserted between the protrusion 116 and the second arcuate wall portion 113 between. By arranging the protrusions 116, the two independent parts 11 and 12 can be ensured to be in good contact and the welding strength can be improved.

Embodiment 3

[0057] like Figure 4 As shown, the plurality of axially extending individual parts 11 , 12 , 13 comprise individual first parts 11 , second parts 12 and third parts 13 , by placing the first part 11 in said assembly direction A , the third part 13 and the second part 12 are placed in sequence and connected together, for example by welding the first part 11 , the third part 13 and the second part 12 together. A refrigerant inlet cavity 18 is formed between the first part 11 and the third part 13 , and a refrigerant distribution cavity 19 is formed between the third part 13 and the second part 12 .

[0058] like Figure 4 shown, when viewed in cross-section, for example at Figure 4 When viewed in the cross-sectional view shown, the first member 11 includes a first arc-shaped wall portion 111 , stepped portions 112 extending outwardly from both ends of the first arc-shaped wall portion 111 , and a stepped portion from the first arc-shaped wall portion 111 . The outer end of ...

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Abstract

The invention discloses a collecting main comprising an axially extending inner cavity and a plurality of axially extending and single components, wherein the inner cavity comprises a refrigerant charging cavity and a refrigerant distributing cavity; the refrigerant charging cavity is separated from and is in fluid communication with the refrigerant distributing cavity, and a refrigerant enters the refrigerant charging cavity and is distributed to heat exchange tubes from the refrigerant distributing cavity; and the refrigerant charging cavity and the refrigerant distributing cavity is formed by sequentially arranging and connecting the axially extending and single components in an assembly direction vertical to the axial direction. According to the structure of the collecting main disclosed by the invention, the collecting main is formed by connecting the single components together so that a problem of two-phase flow distribution of a heat exchanger is improved, and the heat exchange performance is improved; moreover, the problem of instable quality of a product is improved due to the simple assembly technology; and in addition, a problem of high cost of the existing radio-frequency welded tube is solved.

Description

technical field [0001] The invention relates to headers and heat exchangers with headers. Background technique [0002] US patent application US2011 / 0315363A1 discloses a heat exchanger comprising a first header and a second header. A distribution plate is arranged inside the first header along the length direction to divide the first header into a refrigerant inlet part and a refrigerant distribution part, and multi-channel flat tubes extend into the first header to form multiple refrigerant distribution parts. Refrigerant distribution cavity. In the first header, one end of the multi-channel flat tube is in contact with the distribution plate, and the second end is arranged in the second header, forming a plurality of substantially parallel flow paths between the first and second headers, and At least partially blocked by the distribution plate. The outer wall of one end of the multi-channel flat tube is removed so that the refrigerant can enter the interior of the flat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F9/02F25B39/00
CPCF28F2275/064F28F9/0224F28F9/0273F28D1/05391F28D1/05366F28F1/126F28F9/02
Inventor 蒋建龙杨柳华陆向迅唐燕栋杰弗里·L·塔克李开泉
Owner DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING
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