CN104713387A - Bending heat exchanger and bending method of heat exchanger - Google Patents
Bending heat exchanger and bending method of heat exchanger Download PDFInfo
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- CN104713387A CN104713387A CN201310681338.3A CN201310681338A CN104713387A CN 104713387 A CN104713387 A CN 104713387A CN 201310681338 A CN201310681338 A CN 201310681338A CN 104713387 A CN104713387 A CN 104713387A
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Abstract
The invention discloses a bending heat exchanger and a bending method of the heat exchanger. The bending heat exchanger comprises a first collecting pipe, a second collecting pipe, a plurality of fins and a plurality of flat pipes. Each flat pipe comprises a first portion, a second portion and a middle portion connected with the first portion and the second portion; and the first portions and the second portions are in contact with the fins respectively. Each middle portion comprises a first twisting portion, a second twisting portion and a straightness portion, wherein the first twisting portion is connected with the corresponding first portion, the second twisting portion is connected with the corresponding second portion, and the straightness portion is connected with the first twisting portion and the second twisting portion. The straightness portions of the flat pipes are sequentially overlapped partly and are sequentially and tightly attached together. Each straightness portion comprises an inner surface and an outer surface, and the inner surfaces and the outer surfaces of the straightness portions are flat on the flat. According to the arrangement, the bending precision can be ensured, and in addition, the flat bending portions can reduce the height of the bending heat exchanger; and under the condition of the same length of the flat pipes, the length of fin segments is increased, and therefore the heat exchange performance of the heat exchanger can be improved.
Description
Technical field
The present invention relates to the bending method of a kind of bent heat exchanger and heat exchanger, belong to air-condition heat exchanger field.
Background technology
In recent decades, air conditioning for automobiles obtains and develops rapidly, accounts for the second of air-conditioning machinery.Heat exchanger, as one of four chief components of air conditioning for automobiles, also needs to carry out improving and optimizating design according to the requirement of aspect, market.Because parallel-flow heat exchanger has the features such as refrigerating efficiency is high, volume is little, lightweight, can be good at the requirement meeting market, be applied in automotive air-conditioning system gradually in recent years.
Traditional micro-channel heat exchanger mainly comprises micro-channel flat, radiating fin and header.Header is provided with, for distributing and collecting cold-producing medium at the two ends of micro-channel flat.Be provided with undulatory or with the radiating fin of shutter shape between adjacent micro-channel flat, in order to strengthen the heat exchange efficiency of condenser and air side.
On July 2nd, 1996, the US Patent No. 5,531,268 of bulletin disclosed a kind of bent heat exchanger, and it comprises inlet header, outlet collection pipe, fin and flat tube.The described flat tube being positioned at same layer is integrated bending and forms, it comprises the Part I being connected to inlet header, the Part II being connected to outlet collection pipe and is positioned at the dogleg section of middle distortion, first, second part of wherein said flat tube is all connected with fin, and described dogleg section is aptery fragment.As apparent from Fig. 2 of this patent can, the interior outside of dogleg section is all in arc-shaped.But the precision of this design flat tube bending process is not high, easily causes the local deformation of heat exchanger, the structure of fin near destroying, reduces heat exchange efficiency.In addition, the flat tube bending of this mode, size finally outwardly after the dogleg section of arc-shaped superposes mutually can be comparatively large, and the appearance and size of heat exchanger cannot accurately control, and finally causes and installs difficulty.Most importantly, because circular arc bending needs reserved longer bending length, as everyone knows, the part be connected with fin in flat tube possesses stronger heat exchange property compared to aptery fragment.The flat tube of equal length, if aptery fragment is many, has fin section to tail off accordingly, thus can reduce the heat exchange property of heat exchanger.
Along with the development of technology, the heat exchange property of client's heat exchanger proposes more and more higher requirement, and the heat exchanger structure that above-mentioned patent discloses more and more has been difficult to adapt to current needs.Therefore, be necessary to be optimized the structure of existing bent heat exchanger and bending method thereof.
Summary of the invention
The object of the present invention is to provide a kind of size to be easy to control, the bending method of the good bent heat exchanger of heat exchange property and this bent heat exchanger.
For achieving the above object, the present invention adopts following technical scheme: a kind of bent heat exchanger, comprise the first header, second header, some fins and connect described first, some flat tubes of the second header, described bent heat exchanger comprises the first heat exchange unit and the second heat exchange unit, described flat tube comprises the Part I be positioned on described first heat exchange unit, be positioned at the Part II on described second heat exchange unit, and connect described first, the mid portion of Part II, described first, Part II respectively with described fin contacts, described mid portion comprises the first torsional part be connected with described Part I and the second torsional part be connected with described Part II, described mid portion also comprises and connects described first, the flat part of the second torsional part, the flat part of these flat tubes partly overlaps successively and closely sticks together successively, described flat part comprises inner surface and outer surface, the inner surface of these flat parts and outer surface are all flat on the whole.
As further improved technical scheme of the present invention, described first heat exchange unit and described second heat exchange unit are positioned at the same side of described mid portion, and described first heat exchange unit and described second heat exchange unit are that angle is arranged or is parallel to each other.
As further improved technical scheme of the present invention,
For achieving the above object, present invention also offers a kind of bending method of heat exchanger, it comprises the steps:
S1: a kind of heat exchanger treating bending is provided, it comprises the first heat exchange unit, the second heat exchange unit, flat tube and some fins, described flat tube comprises the Part I be positioned on described first heat exchange unit, is positioned at the Part II on described second heat exchange unit and connects the mid portion of first, second part described, first, second part described respectively with described fin contacts, described mid portion is positioned at vertical position;
S2: described mid portion is reversed to horizontal level;
S3: provide a kind of apparatus for bending, clamps described mid portion;
S4: apply bending power to first, second heat exchange unit described, makes first, second heat exchange unit described carry out bending relative to described mid portion;
S5: the heat exchanger after bending is taken off from described apparatus for bending.
As further improved technical scheme of the present invention, between step S1 and step S2, described bending method also comprises the steps:
S11: a pair comb is provided and this is installed on the both sides of described mid portion to comb; Each comb comprises some spaced locating slots, and described flat tube is several and is fastened in respectively in described locating slot.
As further improved technical scheme of the present invention, in step S11, this lays respectively at the intersection of described Part I and described mid portion and the intersection of described Part II and described mid portion to comb;
Described first heat exchange unit is provided with the first header be communicated with described Part I, and described second heat exchange unit is provided with the second header be communicated with described Part II, and described comb is parallel to first, second header described.
As further improved technical scheme of the present invention, in step S3, described apparatus for bending comprises locating the locating piece of described heat exchanger and the briquetting in order to push down described mid portion, and described mid portion is held between described locating piece and described briquetting.
As further improved technical scheme of the present invention, described locating piece is strip, its corner angle being provided with flat upper surface and being positioned at upper surface both sides, and described corner angle are right angle or the R angle with radian.
As further improved technical scheme of the present invention, in step s 4 which, first, second heat exchange unit described is being applied in the process of bending power, described mid portion is divided into the first torsional part be connected with described Part I, the second torsional part be connected with described Part II and fits in the flat part of described locating piece upper surface, to form folding line on the corner angle that the intersection of wherein said first torsional part and described flat part and the intersection of described second torsional part and described flat part are all closely pressed on described locating piece.
As further improved technical scheme of the present invention, in step s 5, first, second heat exchange unit described is outwards broken into two with one's hands certain distance along described folding line, to take off from described apparatus for bending.
As further improved technical scheme of the present invention, described bending method also comprises the steps: after step s 5
S6: inwardly extruded along described folding line further by first, second heat exchange unit described, to carry out shaping to described heat exchanger.
For achieving the above object, present invention also offers a kind of bending method of heat exchanger, it comprises the steps:
S1: a kind of heat exchanger treating bending is provided, it comprises the first heat exchange unit, the second heat exchange unit, flat tube and some fins, described flat tube comprises the Part I be positioned on described first heat exchange unit, is positioned at the Part II on described second heat exchange unit and connects the mid portion of first, second part described, first, second part described respectively with described fin contacts, first, second part described is positioned at vertical position, and described mid portion reverses to horizontal level;
S2: provide a kind of apparatus for bending, clamps described mid portion;
S3: apply bending power to first, second heat exchange unit described, makes first, second heat exchange unit described carry out bending relative to described mid portion;
S4: the heat exchanger after bending is taken off from described apparatus for bending.
As further improved technical scheme of the present invention, between step S1 and step S2, described bending method also comprises the steps:
S11: a pair comb is provided and this is installed on the both sides of described mid portion to comb; Each comb comprises some spaced locating slots, and described flat tube is several and is fastened in respectively in described locating slot.
As further improved technical scheme of the present invention, in step S11, this lays respectively at the intersection of described Part I and described mid portion and the intersection of described Part II and described mid portion to comb;
Described first heat exchange unit is provided with the first header be communicated with described Part I, and described second heat exchange unit is provided with the second header be communicated with described Part II, and described comb is parallel to first, second header described.
As further improved technical scheme of the present invention, in step S2, described apparatus for bending comprises locating the locating piece of described heat exchanger and the briquetting in order to push down described mid portion, and described mid portion is held between described locating piece and described briquetting.
As further improved technical scheme of the present invention, described locating piece is strip, its corner angle being provided with flat upper surface and being positioned at upper surface both sides, and described corner angle are right angle or the R angle with radian.
As further improved technical scheme of the present invention, in step s3, first, second heat exchange unit described is being applied in the process of bending power, described mid portion is divided into the first torsional part be connected with described Part I, the second torsional part be connected with described Part II and fits in the flat part of described locating piece upper surface, to form folding line on the corner angle that the intersection of wherein said first torsional part and described flat part and the intersection of described second torsional part and described flat part are all closely pressed on described locating piece.
As further improved technical scheme of the present invention, in step s 4 which, first, second heat exchange unit described is outwards broken into two with one's hands certain distance along described folding line, to take off from described apparatus for bending; Described bending method also comprises the steps: after step s4
S5: inwardly extruded along described folding line further by first, second heat exchange unit described, to carry out shaping to described heat exchanger.
Compared with prior art, the flat part of flat tube partly overlaps and closely sticks together successively by the present invention successively, and the inner surface of these flat parts and outer surface are all flat on the whole.Setting like this, can ensure bending precision, makes heat exchanger attractive in appearance.In addition, compared to the bending part of arc, flat bending part can reduce the height of bent heat exchanger, when same flat tube length, increases the length having fin section, thus can promote the heat exchange property of heat exchanger.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view that the present invention treats the heat exchanger of bending in the first embodiment.
Fig. 2 is the schematic perspective view of heat exchanger before comb inserts in Fig. 1.
Fig. 3 be in Fig. 2 comb insert described in until the schematic perspective view after bent heat exchanger and after integrated overturn certain angle.
Fig. 4 is the schematic perspective view after the mid portion of its flat tube reverses by the heat exchanger in Fig. 3.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is the front view of Fig. 4.
Fig. 7 is the schematic diagram heat exchanger in Fig. 6 being carried out bending.
Fig. 8 is the schematic perspective view of heat exchanger when B position in Fig. 7.
Fig. 9 is the schematic perspective view of heat exchanger of the present invention when C position.
Figure 10 is the front view of Fig. 9.
Figure 11 is the left view that Fig. 9 removes after side plate and adjacent fins.
Figure 12 is in the bending method of heat exchanger of the present invention, the schematic perspective view before cylinder rolls across mid portion.
Figure 13 is the schematic perspective view that the cylinder in Figure 12 rolls across after described mid portion.
Figure 14 is in the bending method of heat exchanger of the present invention, the schematic perspective view after described heat exchanger is loaded onto apparatus for bending, before bending.
Figure 15 is the front view of Figure 14, and wherein said heat exchanger is compressed by apparatus for bending.
Figure 16 is in the bending method of heat exchanger of the present invention, the front view when described heat exchanger is in B position.
Figure 17 is in the bending method of heat exchanger of the present invention, the front view when described heat exchanger is in C position.
Figure 18 is the schematic perspective view that the present invention treats the heat exchanger of bending in the second embodiment.
Detailed description of the invention
Shown in please refer to the drawing 9 to Figure 11, present invention is disclosed a kind of bent heat exchanger 100, it comprises the first header 1, second header 2, some fins 3, the some flat tubes 4 connecting first, second header 1,2 described and some side plates 5.Described bent heat exchanger 100 comprises the first heat exchange unit 101 and the second heat exchange unit 102.Described flat tube 4 comprises the Part I 41 be positioned on described first heat exchange unit 101, is positioned at the Part II 42 on described second heat exchange unit 102 and connects the mid portion (bending part) 43 of first, second part 41,42 described.First, second header 1,2 described is respectively equipped with the flat tube socket (non-label) be communicated with first, second part 41,42 described.First, second part 41,42 described contacts with described fin 3 respectively (in illustrative embodiments of the present invention, first, second part 41,42 described and described fin 3 soldering are integrated).The flat part 433 that described mid portion 43 comprises the first torsional part 431 be connected with described Part I 41, the second torsional part 432 be connected with described Part II 42 and is connected first, second torsional part 431,432 described.The flat part 433 of these flat tubes 4 partly overlaps successively and closely sticks together successively.Shown in please refer to the drawing 9 and Figure 11, on the whole, described flat part 433 is perpendicular to first, second part 41,42 of described flat tube 4.Described flat part 433 comprises inner surface 4331 and outer surface 4332, and the inner surface 4331 of these flat parts 433 and outer surface 4332 are all flat on the whole.Setting like this, can ensure the attractive in appearance of bent heat exchanger 100, can reduce the height of bent heat exchanger 100, when same flat tube length, increases the length having fin section, can promote the heat exchange property of heat exchanger.
Shown in please refer to the drawing 9 and Figure 11, described first heat exchange unit 101 and described second heat exchange unit 102 are positioned at the same side (being downside in the illustrated embodiment) of described mid portion 43.Described first heat exchange unit 101 is parallel to each other with described second heat exchange unit 102.Certainly, in other embodiments, described first heat exchange unit 101 also can be arranged in angle with described second heat exchange unit 102.
Present invention further teaches the bending method of above-mentioned heat exchanger 100.Shown in please refer to the drawing 1 to Fig. 8 and Figure 12 to Figure 17, in the first embodiment of the present invention, described bending method comprises the steps:
S1: provide the heat exchanger treating bending shown in Fig. 1, it comprises the first heat exchange unit 101, second heat exchange unit 102, some flat tubes 4 and some fins 3.Described flat tube 4 comprises the Part I 41 be positioned on described first heat exchange unit 101, is positioned at the Part II 42 on described second heat exchange unit 102 and connects the mid portion 43 of first, second part 41,42 described.First, second part 41,42 described contacts with described fin 3 respectively, and described mid portion 43 is positioned at vertical position;
S2: shown in please refer to the drawing 4, Fig. 5 and Figure 13, reverses described mid portion 43 to horizontal level;
S3: shown in please refer to the drawing 14, provides a kind of apparatus for bending 6, clamps described mid portion 43;
S4: shown in please refer to the drawing 7 and Figure 15 to Figure 17, applies bending power P to first, second heat exchange unit 101,102 described, makes first, second heat exchange unit 101,102 described carry out bending relative to described mid portion 43; And
S5: the heat exchanger after bending is taken off from described apparatus for bending 6.
Just each step above-mentioned is described in detail below:
Shown in please refer to the drawing 1, after having assembled, described flat tube 4 not yet reverses, bending, and each root flat tube 4 is all positioned at vertical position and all flat tubes 4 are arranged at interval all in the horizontal direction.Between two adjacent flat tubes 4 and be equipped with some fins 3 between flat tube 4 and side plate 5.The mid portion 43 of flat tube 4 is not connected with any fin 3, is referred to as aptery fragment.
Shown in please refer to the drawing 2 to Fig. 6, between step S1 and step S2, described bending method also comprises the steps:
S11: a pair comb 7 is provided and this is vertically installed on the both sides of described mid portion 43 to comb 7.Each comb 7 comprises spaced some locating slots 71, and described flat tube 4 and side plate 5 are fastened in described locating slot 71 respectively.Particularly, this lays respectively at the intersection of described Part I 41 with described mid portion 43 and the intersection of described Part II 42 and described mid portion 43 to comb 7.Described comb 7 is parallel to first, second header 1,2 described.The Main Function of described comb 7 is spacing, namely guarantees that flat tube 4 spacing is constant in follow-up torsion, Forging Process, thus avoids damaging fin 3.
Shown in please refer to the drawing 4 to Fig. 6, in step S2, described mid portion 43 is reversed to horizontal level.As previously mentioned, due to the existence of described comb 7, this torsion can not damage fin 3.Shown in please refer to the drawing 12 and Figure 13, in illustrative embodiments of the present invention, in step S2, cylinder 8 is utilized to be reversed to horizontal level by described mid portion 43 in the direction of the arrow.Described cylinder 8 rolls across from the below of described mid portion 43.Shown in please refer to the drawing 5, after torsion, the outwardly described heat exchanger of described mid portion 43 part.Shown in ginseng Fig. 6, after torsion, the height of described mid portion 43 decreases.
Shown in please refer to the drawing 14, in step s3, described apparatus for bending 6 comprises locating the locating piece 61 of described heat exchanger and the briquetting 62 in order to push down described mid portion 43.In illustrative embodiments of the present invention, in the vertical direction, described mid portion 43 is held between described locating piece 61 and described briquetting 62.
In illustrative embodiments of the present invention, in step S2, described mid portion 43 reverses to horizontal level, but does not arrive horizontal level completely.Shown in ginseng Figure 14, described apparatus for bending 6 is also provided with the guide rail (not shown) of a slide anteroposterior, compress in the process of described mid portion 43 completely at described briquetting 62, described heat exchanger can suitably movement in the direction of the arrow under the cooperation of described guide rail, to carry out position adjustment.
Described locating piece 61 is in strip, and its corner angle 612 being provided with flat upper surface 611 and being positioned at upper surface 611 both sides, described corner angle 612 are right angle or the R angle with radian.In illustrative embodiments of the present invention, described upper surface 611 is in being horizontally disposed with, and certainly, in other embodiments, this upper surface also can in vertically arranging.
Shown in please refer to the drawing 7 and Figure 15 to Figure 17, in step s 4 which, applying in the process of bending power P to first, second heat exchange unit 101,102 described, described heat exchanger, from initial position A, through centre position B, finally arrives bending position C.Described mid portion 43 is divided into the first torsional part 431 be connected with described Part I 41, the second torsional part 432 be connected with described Part II 42 and fits in the flat part 433 of described locating piece 61 upper surface 611, and wherein said first torsional part 431 is all closely pressed on the corner angle 612 of described locating piece 61 with the intersection of described flat part 433 and the intersection of described second torsional part 432 and described flat part 433 to form folding line.
In step S5, first, second heat exchange unit 101,102 described is outwards broken into two with one's hands certain distance along described folding line, to take off from described apparatus for bending 6.Namely described heat exchanger gets back to extracting position D from bending position C.Setting like this, the angle between first, second heat exchange unit 101,102 described is larger, can be taken off from described apparatus for bending 6 by described heat exchanger more easily.
In addition, described bending method also comprises the steps: after step s 5
S6: first, second heat exchange unit 101,102 described is inwardly extruded along described folding line, further to carry out shaping to described heat exchanger.It should be noted that, due to the memory function that described folding line possesses within the specific limits, through step S6, described heat exchanger can be re-adjusted to bending position C from extracting position D.
Finally, described comb 7 is also taken off by from described heat exchanger.
Shown in please refer to the drawing 18, what present invention further teaches applicable another kind of structure treats bent heat exchanger 100 ', itself and describedly treat that the difference of bent heat exchanger 100 is, described in treat that the flat tube 4 of bent heat exchanger 100 ' have already been mades torsion in the pre-assembly.In the second embodiment of the bending method of heat exchanger 100 ' of the present invention, described bending method comprises the steps:
S1: provide the heat exchanger 100 ' treating bending shown in Figure 18, it comprises the first heat exchange unit 101, second heat exchange unit 102, some flat tubes 4 and some fins 3.Described flat tube 4 comprises the Part I 41 be positioned on described first heat exchange unit 101, is positioned at the Part II 42 on described second heat exchange unit 102 and connects the mid portion 43 of first, second part 41,42 described.First, second part 41,42 described contacts with described fin 3 respectively, and first, second part 41,42 described is positioned at vertical position.Described mid portion 43 just reversed to horizontal level before heat exchanger assembling.
S2: shown in Figure 14, provides same apparatus for bending 6, and in the vertical direction clamps described mid portion 43;
S3: shown in Fig. 7 and Figure 15 to Figure 17, applies bending power P to first, second heat exchange unit 101,102 described, makes first, second heat exchange unit 101,102 described carry out bending relative to described mid portion 43; And
S4: the heat exchanger after bending is taken off from described apparatus for bending 6.
The difference of the bending method in the second embodiment and the first embodiment is only, step S1 in first embodiment and step S2 is merged into a step, the step S3 in the first embodiment to step S6 is equivalent to step S2 in the second embodiment to step S5.This is clear and easy understand for the technical staff in art, no longer repeats the detailed process of the second embodiment herein.
Shown in please refer to the drawing 9 to Figure 11, compared to prior art, the flat part 433 of described flat tube 4 partly overlaps successively and closely sticks together successively, and the inner surface 4331 of these flat parts 433 and outer surface 4332 are all flat on the whole.Setting like this, in Forging Process, carries out spacing by described locating piece 61 with the mid portion 43 of described briquetting 62 to described flat tube 4, improves the controllability of heat exchanger bending, also make bent heat exchanger 100,100 ' more attractive in appearance; In addition, carry out spacing by described locating piece 61 with the mid portion 43 of described briquetting 62 to described flat tube 4, the bending height H 1 of mid portion 43 can be reduced; Most importantly, when same flat tube length, by controlling the bending height H 1 of mid portion 43, the length that flat tube 4 has fin section can be increased accordingly, flat tube 4 length namely corresponding to height H 2.Be appreciated that, fin 3 can strengthen the heat transfer effect of fluid in heat exchanger and outside air, compared to the aptery fragment (i.e. mid portion 43) of flat tube 4, flat tube have the heat exchange property of fin section (i.e. Part I 41 and Part II 42) better, therefore, in illustrative embodiments of the present invention, by reduce aptery fragment height H 1, increase and have the height H 2 of fin section, thus effectively can promote the heat exchange property of bent heat exchanger 100.
It should be noted that: above embodiment is only for illustration of the present invention and unrestricted technical scheme described in the invention.Although this description reference the above embodiments are to present invention has been detailed description, but, those of ordinary skill in the art is to be understood that, person of ordinary skill in the field still can modify to the present invention or equivalent replacement, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, all should be encompassed in right of the present invention.
Claims (17)
1. a bent heat exchanger, comprise the first header, second header, some fins and connect described first, some flat tubes of the second header, described bent heat exchanger comprises the first heat exchange unit and the second heat exchange unit, described flat tube comprises the Part I be positioned on described first heat exchange unit, be positioned at the Part II on described second heat exchange unit, and connect described first, the mid portion of Part II, described first, Part II respectively with described fin contacts, described mid portion comprises the first torsional part be connected with described Part I and the second torsional part be connected with described Part II, it is characterized in that: described mid portion also comprises and connects described first, the flat part of the second torsional part, the flat part of these flat tubes partly overlaps successively and closely sticks together successively, described flat part comprises inner surface and outer surface, the inner surface of these flat parts and outer surface are all flat on the whole.
2. bent heat exchanger as claimed in claim 1, it is characterized in that: described first heat exchange unit and described second heat exchange unit are positioned at the same side of described mid portion, described first heat exchange unit and described second heat exchange unit are that angle is arranged or is parallel to each other.
3. a bending method for heat exchanger, it comprises the steps:
S1: a kind of heat exchanger treating bending is provided, it comprises the first heat exchange unit, the second heat exchange unit, flat tube and some fins, described flat tube comprises the Part I be positioned on described first heat exchange unit, is positioned at the Part II on described second heat exchange unit and connects the mid portion of first, second part described, first, second part described respectively with described fin contacts, described mid portion is positioned at vertical position;
S2: described mid portion is reversed to horizontal level;
S3: provide a kind of apparatus for bending, clamps described mid portion;
S4: apply bending power to first, second heat exchange unit described, makes first, second heat exchange unit described carry out bending relative to described mid portion;
S5: the heat exchanger after bending is taken off from described apparatus for bending.
4. bending method as claimed in claim 3, it is characterized in that: between step S1 and step S2, described bending method also comprises the steps:
S11: a pair comb is provided and this is installed on the both sides of described mid portion to comb; Each comb comprises some spaced locating slots, and described flat tube is several and is fastened in respectively in described locating slot.
5. bending method as claimed in claim 4, it is characterized in that: in step S11, this lays respectively at the intersection of described Part I and described mid portion and the intersection of described Part II and described mid portion to comb;
Described first heat exchange unit is provided with the first header be communicated with described Part I, and described second heat exchange unit is provided with the second header be communicated with described Part II, and described comb is parallel to first, second header described.
6. bending method as claimed in claim 3, it is characterized in that: in step S3, described apparatus for bending comprises locating the locating piece of described heat exchanger and the briquetting in order to push down described mid portion, and described mid portion is held between described locating piece and described briquetting.
7. bending method as claimed in claim 6, it is characterized in that: described locating piece is strip, its corner angle being provided with flat upper surface and being positioned at upper surface both sides, described corner angle are right angle or the R angle with radian.
8. bending method as claimed in claim 7, it is characterized in that: in step s 4 which, first, second heat exchange unit described is being applied in the process of bending power, described mid portion is divided into the first torsional part be connected with described Part I, the second torsional part be connected with described Part II and fits in the flat part of described locating piece upper surface, to form folding line on the corner angle that the intersection of wherein said first torsional part and described flat part and the intersection of described second torsional part and described flat part are all closely pressed on described locating piece.
9. bending method as claimed in claim 8, it is characterized in that: in step s 5, first, second heat exchange unit described is outwards broken into two with one's hands certain distance along described folding line, to take off from described apparatus for bending.
10. bending method as claimed in claim 9, is characterized in that: described bending method also comprises the steps: after step s 5
S6: inwardly extruded along described folding line further by first, second heat exchange unit described, to carry out shaping to described heat exchanger.
The bending method of 11. 1 kinds of heat exchangers, it comprises the steps:
S1: a kind of heat exchanger treating bending is provided, it comprises the first heat exchange unit, the second heat exchange unit, flat tube and some fins, described flat tube comprises the Part I be positioned on described first heat exchange unit, is positioned at the Part II on described second heat exchange unit and connects the mid portion of first, second part described, first, second part described respectively with described fin contacts, first, second part described is positioned at vertical position, and described mid portion reverses to horizontal level;
S2: provide a kind of apparatus for bending, clamps described mid portion;
S3: apply bending power to first, second heat exchange unit described, makes first, second heat exchange unit described carry out bending relative to described mid portion;
S4: the heat exchanger after bending is taken off from described apparatus for bending.
12. bending methods as claimed in claim 11, it is characterized in that: between step S1 and step S2, described bending method also comprises the steps:
S11: a pair comb is provided and this is installed on the both sides of described mid portion to comb; Each comb comprises some spaced locating slots, and described flat tube is several and is fastened in respectively in described locating slot.
13. bending methods as claimed in claim 12, is characterized in that: in step S11, this lays respectively at the intersection of described Part I and described mid portion and the intersection of described Part II and described mid portion to comb;
Described first heat exchange unit is provided with the first header be communicated with described Part I, and described second heat exchange unit is provided with the second header be communicated with described Part II, and described comb is parallel to first, second header described.
14. bending methods as claimed in claim 11, it is characterized in that: in step S2, described apparatus for bending comprises locating the locating piece of described heat exchanger and the briquetting in order to push down described mid portion, and described mid portion is held between described locating piece and described briquetting.
15. bending methods as claimed in claim 14, is characterized in that: described locating piece is strip, its corner angle being provided with flat upper surface and being positioned at upper surface both sides, and described corner angle are right angle or the R angle with radian.
16. bending methods as claimed in claim 15, it is characterized in that: in step s3, first, second heat exchange unit described is being applied in the process of bending power, described mid portion is divided into the first torsional part be connected with described Part I, the second torsional part be connected with described Part II and fits in the flat part of described locating piece upper surface, to form folding line on the corner angle that the intersection of wherein said first torsional part and described flat part and the intersection of described second torsional part and described flat part are all closely pressed on described locating piece.
17. bending methods as claimed in claim 16, it is characterized in that: in step s 4 which, first, second heat exchange unit described is outwards broken into two with one's hands certain distance along described folding line, to take off from described apparatus for bending; Described bending method also comprises the steps: after step s4
S5: inwardly extruded along described folding line further by first, second heat exchange unit described, to carry out shaping to described heat exchanger.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681338.3A CN104713387B (en) | 2013-12-13 | 2013-12-13 | Bending heat exchanger and bending method of heat exchanger |
| US14/561,392 US10247482B2 (en) | 2013-12-13 | 2014-12-05 | Bent heat exchanger and method for bending the heat exchanger |
| EP14197077.2A EP2884209B1 (en) | 2013-12-13 | 2014-12-10 | Bent heat exchanger and method for bending the heat exchanger |
| PL14197077T PL2884209T3 (en) | 2013-12-13 | 2014-12-10 | Bent heat exchanger and method for bending the heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681338.3A CN104713387B (en) | 2013-12-13 | 2013-12-13 | Bending heat exchanger and bending method of heat exchanger |
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| CN109269336A (en) * | 2018-09-25 | 2019-01-25 | 湖北中圣节水股份有限公司 | A kind of heat exchanger tube for high-efficiency steam condensation |
| CN109269336B (en) * | 2018-09-25 | 2020-05-12 | 湖北中圣节水股份有限公司 | Heat exchange tube for high-efficiency steam condensation |
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