CN102371319A - Heat exchanger bending protection device and heat exchanger bending method - Google Patents
Heat exchanger bending protection device and heat exchanger bending method Download PDFInfo
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- CN102371319A CN102371319A CN2010102611872A CN201010261187A CN102371319A CN 102371319 A CN102371319 A CN 102371319A CN 2010102611872 A CN2010102611872 A CN 2010102611872A CN 201010261187 A CN201010261187 A CN 201010261187A CN 102371319 A CN102371319 A CN 102371319A
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- bending
- heat exchanger
- protective device
- elastic body
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Abstract
The invention discloses a heat exchanger bending protection device which comprises a plate-shaped flexible main body and a plurality of strip-shaped bulges; the strip-shaped bulges are arranged on the lower surface of the plate-shaped flexible main body and extend along the width direction of the plate-shaped flexible main body; and the strip-shaped bulges are arranged at intervals along the length direction of the plate-shaped flexible main body. The heat exchanger bending protection device provided by the invention can ensure that the deformations of fin parts of bent internal and external sides are the same when a heat exchanger is bent, therefore, fins can be avoided to be broken, the bent heat exchanger appearance and the heat exchanging performance are not influenced. The invention further provides a method for bending the heat exchanger by the bending protection device.
Description
Technical field
The present invention relates to a kind of heat exchanger bending protective device and heat exchanger bending method.
Background technology
In order to improve applicability, traditional heat exchanger needs bending usually, is along the axial bending of its header during the heat exchanger bending of part type.When bending, the fin between the heat exchanger tube is compressed on short transverse in the inboard fin part of bending center line, and the fin part in the bending center line outside is stretched on short transverse, and wherein the fin height on the bending center line is constant.But; The amount of tension than the fin part in the outside is little usually for the decrement of inboard fin part during actual bending; Be that the bending center line is not positioned at the center on the width direction; But the deflection bending is inboard, and outside fin part is broken when therefore causing bending easily, has influenced the heat exchange property and the outward appearance of heat exchanger.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.
For this reason, one object of the present invention is to propose a kind of heat exchanger bending protective device, when this bending protective device can be avoided heat exchanger bending in the fin bending center line fin part deflection in the outside inconsistent and fin that cause is broken.
Another object of the present invention is to propose a kind of bending method that utilizes above-mentioned bending protective device bending heat exchanger.
Embodiment according to one aspect of the invention proposes a kind of heat exchanger bending protective device, comprising: tabular elastic body; With a plurality of strip projected parts, said a plurality of strip projected parts are arranged on said tabular elastic body's the lower surface and extend along tabular elastic body's width respectively, and said a plurality of strip projected parts are along tabular elastic body's the spaced apart setting of length direction.
In addition, heat exchanger bending protective device according to the above embodiment of the present invention can also have following additional technical characterictic:
Said strip projected parts is a hollow.
The cross section of said strip projected parts on tabular elastic body's length direction is trapezoidal and diminishes gradually towards the direction away from said tabular elastic body.
Be formed with on said tabular elastic body's the upper surface along said tabular elastic body's width extension and the tabular elastic body's in edge length direction spaced apart recesses.
Said tabular elastic body and strip projected parts are integrally formed by elastomeric material.
Said a plurality of strip projected parts is evenly spaced apart setting along tabular elastic body's length direction.
Embodiment according to a further aspect of the invention proposes a kind of bending method of heat exchanger, and said heat exchanger comprises first header; Second header, the spaced apart abreast setting of said second header and first header; A plurality of heat exchanger tubes, the spaced apart setting of said a plurality of heat exchanger tubes and connect first and second headers respectively to be communicated with first and second headers; Fin; Said fin is separately positioned between the adjacent heat exchanger tube; Said bending method comprises the steps: will be by on the bending section of bending with what fasten to said heat exchanger according to the described heat exchanger bending protective device of first aspect present invention embodiment; Wherein said will by the bending outer side edges of the fin in the bending section of bending in the horizontal with respect to the bending outer side edges of heat exchanger tube alternately concordant with in contract, and between two adjacent heat exchange tubes contracting between them of the said strip projected parts bending outer side edges that is inserted into fin respectively; With with heat exchanger that snaps together and the bending together of heat exchanger bending protective device.
Particularly, heat exchanger that snaps together and heat exchanger bending protective device are placed on the operating desk, wherein the heat exchanger bending protective device be positioned at heat exchanger below;
Mandrel is placed into heat exchanger will be by on the upper surface of the bending section of bending; With
The bending slurcam is placed on heat exchanger will be by the following of the vertical side of the bending section of bending and through upwards promoting the bending slurcam with heat exchanger bending.
Preferably, the inner side edge of said bending slurcam aligns with the center line of bending section.
Wherein said will be concordant with respect to the bending outer side edges of heat exchanger tube in the horizontal by the bending inner side edge of the fin in the bending section of bending.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 utilizes according to the heat exchanger bending protective device of the embodiment of the invention and the sketch map of the heat exchanger before the bending method bending;
Fig. 2 is the broken section enlarged diagram of heat exchanger shown in Figure 1;
Fig. 3 is the sectional perspective sketch map of heat exchanger shown in Figure 1;
Fig. 4 is the sketch map behind the heat exchanger bending shown in Figure 1;
Fig. 5 is the local schematic top plan view of heat exchanger shown in Figure 4;
Fig. 6 is the sketch map according to the heat exchanger bending protective device of the embodiment of the invention;
Fig. 7 is the floor map of bending protective device shown in Figure 6;
Fig. 8 is the sketch map of heat exchanger bending protective device according to another embodiment of the present invention;
Fig. 9 utilizes the sketch map that carries out heat exchanger bending according to the bending protective device of the embodiment of the invention;
Figure 10 is the broken section enlarged diagram that utilizes the heat exchanger bending portion in the heat exchanger bending that carries out according to the bending protective device of the embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention; Term " vertically ", " laterally ", " on ", the orientation of indications such as D score, " left side ", " right side ", " inboard ", " outside " or position relation be for based on orientation shown in the drawings or position relation; Only be for the ease of describing the present invention rather than requiring the present invention therefore can not be interpreted as limitation of the present invention with specific azimuth configuration and operation.
The distortion situation of heat exchanger 100 its component parts in the bending process is at first described below.Shown in Fig. 1-4, heat exchanger 100 comprises first header, 1, the second header 2, a plurality of heat exchanger tubes 3 and fin 4.Second header 2 and the 1 spaced apart abreast setting substantially of first header; A plurality of heat exchanger tubes 3 are spaced apart from each other and connect abreast between first header 1 and second header 2 substantially, thereby the coolant channel in the heat exchanger tube 3 31 is communicated with first header 1 and second header 2.Fin 4 is separately positioned between the adjacent heat exchanger tube 3.Persons of ordinary skill in the art may appreciate that heat exchanger tube 3 for example can be flat tube.
As shown in figs. 1 and 4; For convenience; First header 1 and second header 2 axially be defined as vertical C (being the short transverse of fin 4 and the thickness direction of heat exchanger tube 3); The length direction of heat exchanger tube 3 (being the bearing of trend of fin 4) is defined as direction A, and the width of heat exchanger tube 3 and fin 4 is horizontal B.
When Fig. 5 showed heat exchanger 100 C bending longitudinally, the distortion situation of first header 1, heat exchanger tube 3 and fin 4 wherein mainly was the distortion of fin 4; Line X-X is the center line on the horizontal B of heat exchanger tube and fin; In Fig. 5, center line X-X upside is the bending outside, and downside is that bending is inboard.
In Fig. 5, a be behind the heat exchanger bending along the height of center line X-X (or being called the not height of fin 4 during bending of heat exchanger), b is the outermost fin height of bending behind the heat exchanger bending, c is the most inboard fin height of bending behind the heat exchanger bending.During Design Theory, fin height a remains unchanged when supposing bending, and then c-a must multiply by the percentage elongation of fin material less than a, otherwise fin 4 will be broken when bending.
Will keep a at fin middle part (a is on center line X-X) during bending, must diminish by b, it is big that c becomes, i.e. the inboard fin of bending partly is compressed and the fin in the bending outside partly is stretched.In fact; The compressed amount of fin part of bending inboard is littler than the amount of tension of the fin part in the bending outside during bending, and therefore, a is not on center line X-X; Be a at the middle part of fin on the lower side, the fin part in the bending outside is broken when therefore causing bending easily.
Need to prove; Shown in Fig. 2 and 3; In heat exchanger 100 will be by the bending section of bending; The bending outer side edges of fin 4 (upper side edge among Fig. 3) on horizontal B with respect to the bending outer side edges of heat exchanger tube alternately concordant with in contract so that use heat exchanger bending protective device and bending method to carry out bending according to the embodiment of the invention.Here, in the contract upper side edge that is meant fin 4 be lower than the upper side edge of heat exchanger tube 3, concordantly be meant concordantly substantially, and can not be interpreted as absolute concordant.Bending lower side for the fin in the bending section 4 can be all concordant with the bending inner side edge of heat exchanger tube 3.
With reference to figure 6 and 7 heat exchanger bending protective device 200 is according to an embodiment of the invention described below.
Shown in Fig. 6 and 7, bending protective device 200 comprises tabular elastic body 201 and a plurality of strip projected parts 202.A plurality of strip projected parts 202 are arranged on tabular elastic body's 201 the lower surface and extend along tabular elastic body's 201 width (above-below direction among Fig. 7) respectively, and a plurality of strip projected parts 202 are along tabular elastic body's 201 the spaced apart setting of length direction (left and right directions among Fig. 6 and Fig. 7).In some embodiments of the invention, strip projected parts 202 is evenly spaced apart setting along tabular elastic body's 201 length direction, with the heat exchanger tube 3 that adapts to even spaced apart setting.Shown in figure 10, tabular elastic body's 201 length direction is consistent with direction C, and its width is consistent with direction A.
Tabular elastic body 201 can strain, and shown in figure 10, when the bending heat exchanger, tabular elastic body 201 can flexural deformation.
Shown in figure 10, according to the bending protective device 200 of the embodiment of the invention, when the bending heat exchanger; Bending protective device 200 is fastened on the heat exchanger 100 from the bending outside, more specifically, between two heat exchanger tubes 3 that strip projected parts 202 contracts in the bending outer side edges that is inserted into the fin 4 between them respectively; Thereby when bending; Strip projected parts 202 can limit the amount of tension of the fin part in the bending outside, thereby makes the decrement of the amount of tension of the fin part of avoiding the bending outside greater than the inboard fin part of bending, and a is remained on the center line X-X; Be the middle part of a at fin; Therefore the fin part in the bending outside can not broken during bending, and the profile of the heat exchanger 100 of bending is good, and can not influence heat exchanger performance.
As shown in Figure 6, in some embodiments of the invention, strip projected parts 202 is a hollow, can reduce the weight of bending protective device 200 thus, saves material, reduces manufacturing cost.
As shown in Figure 6; Take off from heat exchanger 100 for the ease of fastening on the heat exchanger 100 He after the bending; The cross section on tabular elastic body's 201 length direction of strip projected parts 202 is trapezoidal, wherein diminishes gradually towards the direction away from tabular elastic body 201, and promptly grow up in the following length of side in the top.In some embodiments of the invention, for easily manufactured, tabular elastic body 201 can be integrally formed by elastomeric material with strip projected parts 202.But the present invention is not limited to this, and for example strip projected parts 202 can form separately, is welded on then on the tabular elastic body 201.
As shown in Figure 8; In an example of the present invention; Be formed with on tabular elastic body's 201 the upper surface along tabular elastic body's width extension and the tabular elastic body's in edge length direction spaced apart recesses 203; So that further save material, and easy operating bending protective device 200 in use.In order not reduce tabular elastic body's 201 intensity, preferably, groove 203 is corresponding about in the of 202 with strip projected parts.
According to the heat exchanger bending protective device 200 of the embodiment of the invention, simple in structure, easily manufactured, cost is low, can be when the bending heat exchanger, and the fin that prevents the bending outside is broken and is influenced the outward appearance and the heat exchange property of heat exchanger.
With reference to 1-4 and 9-10 the bending method that utilizes according to the bending protective device bending heat exchanger 100 of the embodiment of the invention is described below.
Shown in Fig. 1-3; Heat exchanger tube 3 is connected between first header 1 and second header 2; And fin 4 is arranged between the adjacent heat exchanger tube 3; In the bending outside, the bending outer side edges of fin 4 with respect to the bending outer side edges of heat exchanger tube 3 alternately concordant with in contract so that fasten bending protective device 200.Bending protective device 200 is fastened on the heat exchanger 100; Wherein strip projected parts 202 is inserted into respectively between the adjacent heat exchange tubes 3 that contracts in the bending outer side edges of fin between them; Wherein tabular elastic body's 201 length direction is with vertically C is consistent, and tabular elastic body's 201 width is consistent with direction A.Then; With heat exchanger that snaps together 100 and the bending together of bending protective device; Because the existence of bending protective device 200, the amount of tension of the fin part in the bending outside is restricted, and therefore guarantees that fin height a is on the center line X-X of fin; Can avoid the fin part in the bending outside to be broken thus, so the profile of the heat exchanger after the bending 100 and heat exchange property can not affect adversely.
Shown in Fig. 9 and 10; In specific embodiments more of the present invention; With the concrete operations of heat exchanger that snaps together 100 and 200 bendings of bending protective device be: heat exchanger that snaps together 100 and heat exchanger bending protective device 200 are placed on the operating desk 500, wherein heat exchanger bending protective device 200 be positioned at heat exchanger 100 below, then mandrel 300 being placed into heat exchanger 100 will be by on the upper surface of the bending section of bending; Then bending slurcam 400 being placed on heat exchanger 100 will be by below the vertical side of the bending section of bending; At last, through upwards promoting bending slurcam 400, as shown in Figure 9 with heat exchanger bending; In a preferred exemplary of the present invention, the inner side edge of bending slurcam 400 aligns with the center line of bending section.
According to heat exchanger bending method of the present invention, owing to adopted the bending protective device, so the amount of tension of the fin part in the bending outside is restricted, and the fin part of having avoided the bending outside is broken and influenced the profile and the heat exchange property of heat exchanger.
In the description of this specification, reference term " embodiment ", " some embodiment ", concrete example " or " some examples " description of waiting mean and combine concrete characteristic, structure, material or the characteristics of this embodiment or example description to be contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention; Those having ordinary skill in the art will appreciate that: under the situation that does not break away from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited claim and equivalent thereof.
Claims (10)
1. a heat exchanger bending protective device is characterized in that, comprising:
Tabular elastic body; With
A plurality of strip projected parts, said a plurality of strip projected parts are arranged on said tabular elastic body's the lower surface and extend along tabular elastic body's width respectively, and said a plurality of strip projected parts are along tabular elastic body's the spaced apart setting of length direction.
2. heat exchanger bending protective device according to claim 1 is characterized in that, said strip projected parts is a hollow.
3. heat exchanger bending protective device according to claim 1 is characterized in that, the cross section of said strip projected parts on tabular elastic body's length direction is trapezoidal and diminishes gradually towards the direction away from said tabular elastic body.
4. heat exchanger bending protective device according to claim 1 is characterized in that, is formed with on said tabular elastic body's the upper surface along tabular elastic body's width extension and the tabular elastic body's in edge length direction spaced apart recesses.
5. according to each described heat exchanger bending protective device among the claim 1-4, it is characterized in that said tabular elastic body and strip projected parts are integrally formed by elastomeric material.
6. heat exchanger bending protective device according to claim 5 is characterized in that, said a plurality of strip projected parts are evenly spaced apart setting along tabular elastic body's length direction.
7. the bending method of a heat exchanger, said heat exchanger comprises first header; Second header, the spaced apart abreast setting of said second header and first header; A plurality of heat exchanger tubes, the spaced apart setting of said a plurality of heat exchanger tubes and connect first and second headers respectively to be communicated with first and second headers; Fin, said fin is separately positioned between the adjacent heat exchanger tube, it is characterized in that, and said bending method comprises the steps:
Will as each described heat exchanger bending protective device among the claim 1-6 fasten to said heat exchanger will be by on the bending section of bending; Wherein said will by the bending outer side edges of the fin in the bending section of bending in the horizontal with respect to the bending outer side edges of heat exchanger tube alternately concordant with in contract, and between two adjacent heat exchange tubes contracting between them of the said strip projected parts bending outer side edges that is inserted into fin respectively; With
With heat exchanger that snaps together and the bending together of heat exchanger bending protective device.
8. heat exchanger bending method according to claim 7 is characterized in that, wherein the heat exchanger that snaps together and heat exchanger bending protective device bending is together comprised:
Heat exchanger that snaps together and heat exchanger bending protective device are placed on the operating desk, wherein the heat exchanger bending protective device be positioned at heat exchanger below;
Mandrel is placed into heat exchanger will be by on the upper surface of the bending section of bending; With
The bending slurcam is placed on heat exchanger will be by the following of the vertical side of the bending section of bending and through upwards promoting the bending slurcam with heat exchanger bending.
9. heat exchanger bending method according to claim 8 is characterized in that, the inner side edge of wherein said bending slurcam aligns with the center line of bending section.
10. heat exchanger bending method according to claim 7 is characterized in that, wherein said will be concordant with respect to the bending outer side edges of heat exchanger tube in the horizontal by the bending inner side edge of the fin in the bending section of bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010261187 CN102371319B (en) | 2010-08-20 | 2010-08-20 | Heat exchanger bending protection device and heat exchanger bending method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010261187 CN102371319B (en) | 2010-08-20 | 2010-08-20 | Heat exchanger bending protection device and heat exchanger bending method |
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| CN102371319A true CN102371319A (en) | 2012-03-14 |
| CN102371319B CN102371319B (en) | 2013-11-06 |
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| CN 201010261187 Active CN102371319B (en) | 2010-08-20 | 2010-08-20 | Heat exchanger bending protection device and heat exchanger bending method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913088A (en) * | 2014-04-16 | 2014-07-09 | 杭州三花微通道换热器有限公司 | Fins and bent heat exchanger with same |
| CN105258532A (en) * | 2013-08-28 | 2016-01-20 | 杭州三花微通道换热器有限公司 | Heat exchanger |
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| CN2509715Y (en) * | 2001-08-01 | 2002-09-04 | 富准精密工业(深圳)有限公司 | Lock joining device for radiator |
| CN201154377Y (en) * | 2008-01-11 | 2008-11-26 | 北京思诚翰盛机械制造有限责任公司 | Mold for gradedly pressing plates of super-sized plate heat exchanger |
| CN101426699A (en) * | 2006-03-14 | 2009-05-06 | 热驱动有限责任公司 | Conveyor belt with attached strips of teeth |
| DE202008003413U1 (en) * | 2008-02-25 | 2009-07-02 | Uti Holding + Management Ag | Klippfalz roofing system for solar collectors |
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2010
- 2010-08-20 CN CN 201010261187 patent/CN102371319B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2509715Y (en) * | 2001-08-01 | 2002-09-04 | 富准精密工业(深圳)有限公司 | Lock joining device for radiator |
| CN101426699A (en) * | 2006-03-14 | 2009-05-06 | 热驱动有限责任公司 | Conveyor belt with attached strips of teeth |
| CN201154377Y (en) * | 2008-01-11 | 2008-11-26 | 北京思诚翰盛机械制造有限责任公司 | Mold for gradedly pressing plates of super-sized plate heat exchanger |
| DE202008003413U1 (en) * | 2008-02-25 | 2009-07-02 | Uti Holding + Management Ag | Klippfalz roofing system for solar collectors |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258532A (en) * | 2013-08-28 | 2016-01-20 | 杭州三花微通道换热器有限公司 | Heat exchanger |
| CN105258532B (en) * | 2013-08-28 | 2017-08-29 | 杭州三花微通道换热器有限公司 | Heat exchanger |
| CN103913088A (en) * | 2014-04-16 | 2014-07-09 | 杭州三花微通道换热器有限公司 | Fins and bent heat exchanger with same |
| CN103913088B (en) * | 2014-04-16 | 2016-04-13 | 杭州三花微通道换热器有限公司 | Fin and the bendable heat exchanger with this fin |
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| Publication number | Publication date |
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| CN102371319B (en) | 2013-11-06 |
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Effective date of registration: 20150217 Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 289, No. Patentee after: Sanhua Micro Channel Heat Exchanger Inc. Patentee after: Danfoss AS Address before: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Patentee before: Sanhua Holding Group Co., Ltd. Patentee before: Danfoss AS |
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Application publication date: 20120314 Assignee: Sanhua Micro Channel Heat Exchanger Inc. Assignor: Sanhua Holding Group Co., Ltd. Contract record no.: 2015990000010 Denomination of invention: Heat exchanger bending protection device and heat exchanger bending method Granted publication date: 20131106 License type: Common License Record date: 20150106 |
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