CN101589286B

CN101589286B - Heat exchanger and method

Info

Publication number: CN101589286B
Application number: CN2008800029356A
Authority: CN
Inventors: 史蒂文·P·密斯凯; 丹·R·拉杜恩兹
Original assignee: Modine Manufacturing Co
Current assignee: Modine Manufacturing Co
Priority date: 2007-01-23
Filing date: 2008-01-23
Publication date: 2011-09-28
Anticipated expiration: 2028-01-23
Also published as: BRPI0807410A2; DE112008000114T5; WO2008091918A1; US20100025024A1; CN101589286A

Abstract

A heat exchanger including a first flow path for a first working fluid, a second flow path for a second working fluid, a tube at least partially defining one of the first and second flow paths, and a corrugated insert secured to the tube and positioned along the first flow path. A structural deficit is provided at a location on the insert such that structural failures occur at the location in preference to other locations on the insert.

Description

Heat exchanger and method

Technical field

The present invention relates to a kind of heat exchanger, and more specifically, relate to a kind of exhaust cycle cooler and assemble method and method of operating.

Summary of the invention

In certain embodiments, the invention provides a kind of heat exchanger, it defines first stream that is used for first working fluid and second stream that is used for second working fluid, body limits first and second streams at least in part, and the corrugated insert is fastened to body and along the stream setting of first working fluid.In certain embodiments, fault of construction is arranged on the position on the insert, makes structural break occur in this position.

The present invention also provides a kind of heat exchanger, the body that it has head and is fastened to described head.The corrugated insert can be secured on the surface of described body and can comprise groove, the described body that this groove forms and is fastened to insert along at least a portion of the length of described insert described spaced.In certain embodiments, the corrugated insert can be secured between two apparent surfaces of described body, and groove can be formed on the centre position of insert height.

In certain embodiments, the invention provides a kind of heat exchanger, the insert that it has body and is supported by body.Insert can have the corrugated part that has peak portion and paddy portion, and the groove that extends along the longitudinal size of insert between peak portion and paddy portion, makes described structural break occur in the preferential position between described peak portion and the described paddy portion.

The present invention also provides a kind of method of assembled heat interchanger, and comprising provides heat exchanger tube and insert is navigated in the described body.The method can also may further comprise the steps: the surface that described insert is connected to described body; Tie point maximum distance apart between the described surface of distance described insert and described body forms fault of construction along at least a portion of the length of described insert, makes fracture along described fault of construction generation.

Other aspects of the present invention will become clearer by considering the following specific embodiment and accompanying drawing.

Description of drawings

Fig. 1 is the perspective view according to the heat exchanger of some embodiments of the present invention.

Fig. 2 is the cutaway view of the part of the heat exchanger shown in Fig. 1.

Fig. 3 is the perspective view of a part of the body of the heat exchanger shown in Fig. 1.

Fig. 4 is the exploded view of the part of the body of the heat exchanger shown in Fig. 1 and insert.

Fig. 5 is the end-view of the part of the body of the heat exchanger shown in Fig. 1 and insert.

Fig. 6 is the body of heat exchanger according to another embodiment of the invention and the exploded view of insert.

Fig. 7 is the end-view of the part of the body of the heat exchanger shown in Fig. 6 and insert.

The specific embodiment

Before describing any embodiment of the present invention in detail, should be appreciated that the present invention is not limited to set forth in the following description or the structure of illustrated parts and the details of layout in the following drawings with regard to its application.The present invention can have other embodiment, and practical application in every way or enforcement.In addition, be also to be understood that word used herein and term are to be used for illustrative purposes, and should not be regarded as restriction.Here " comprise ", " comprising " or " having " and the use that changes thereof represent to comprise listed thereafter every and equivalent, and addition Item.

Except as otherwise noted or restriction, term " installations ", " connection ", " support " and " coupling " and variation thereof are used in the broad sense mode, and comprise direct with indirect installation, be connected, support and coupling.In addition, " connection " and " coupling " are not limited to being connected or coupling of physics or machinery.

In addition, should be appreciated that, this paper at device or the used word of element orientation and term (for example, similar " central authorities ", " on ", the term of D score, " preceding ", " back " etc.) only be used for simplifying to explanation of the present invention, do not represent not singlely or hint that related device or element must have particular orientation.In addition, the term such as " first " and " second " is used for illustrative purposes at this paper, is not intended to mean that or hints relative importance or conspicuousness.

Fig. 1-5 illustrates the heat exchanger 10 according to some embodiments of the present invention.In some embodiment of the illustrated embodiment that comprises Fig. 1-5, heat exchanger 10 can be used as exhaust gas recirculation cooler (EGRC) work, and can work together with the gas extraction system of vehicle.In other embodiments, heat exchanger 10 can be used for other (for example, non-vehicle) application, for example electronic equipment cooling, industrial equipment, building heating and air-conditioning etc.In addition, should be appreciated that heat exchanger 10 of the present invention can be taked many forms, utilizes the material of relative broad range, and can be combined in the various other systems.

During operation and as described in more detail below, heat exchanger 10 can be with first working fluid (for example, exhaust, water, engine coolant, the CO of heat energy from high temperature ₂, machine refrigerant, R12, R245fa, air etc. are arranged) be passed to second working fluid (for example, exhaust, water, engine coolant, the CO of lower temperature ₂, machine refrigerant, R12, R245fa, air etc. are arranged).In addition, two working fluid between transmit heat though mention herein, in some embodiments of the invention, heat exchanger 10 can be worked to transmit heat between three or more fluids.Alternatively or additionally, heat exchanger 10 can be used as heat exchanger (recuperator), and heat energy can be passed to the low temperature position of same hot loop from the high temperature position of hot loop.In some this embodiment, heat exchanger 10 can be passed to heat energy the same working fluid of the second portion of the heat exchange loop of flowing through from the working fluid of the first of the heat transfer circuit of flowing through.

As shown in Figure 1, heat exchanger 10 can comprise first head 18 and second head 20, and they lay respectively at 22,24 places, first and second ends of the stacked body of heat exchanger tube 26.In the illustrated embodiment of Fig. 1-5, first head 18 comprises that first header 30 and second head 20 comprise second header 32.In other embodiments, heat exchanger 10 can comprise the places of first and second ends 22,24 that are arranged in heat exchanger 10 or the single head 18 of other positions.

Shown in Fig. 1-5, each body 26 can be secured on first and

second heads

18,20, and first working fluid of the feasible heat exchanger 10 of flowing through keeps separating with second working fluid of the heat exchanger 10 of flowing through.More specifically, heat exchanger 10 defines first stream (by arrow 34 expressions of Fig. 1) that is used for first working fluid and second stream (by arrow 36 expressions of Fig. 1) that is used for second working fluid, and first and

second streams

34,36 are separated mutually, make the working fluid of winning can not enter second stream 36 and second working fluid can not enter first stream 34.

In some embodiment such as the illustrated embodiment of Fig. 1-5, body 26 is secured to first and

second heads

18,20, make the working fluid of winning enter heat exchanger 10 by first ingate 40 in first head 18, along first stream 34 heat exchanger 10 of flowing through, and make it can not enter second stream 36.In these embodiments, body 26 can be secured to first and

second heads

18,20, make second working fluid enter heat exchanger 10,, and make it can not enter first stream 34 along second stream 36 heat exchanger 10 of flowing through by second ingate 42 in second head 20.

In some this embodiment, first stream 34 extends through first ingate 40 in first head 18, extends to outside the heat exchanger 10 again by body 26, and by first outlet opening 44 in second head 20; Second stream 36 extends through second ingate 42, is extending (for example, along the outer surface 45 of body 26) around the body 26 and between the body 26, and is extending to outside the heat exchanger 10 by second outlet opening 46 in first head 18.

In other embodiments, body 26 can have other orientation and structure, can make first and

second streams

34,36 keep separating by separator (divider), insert, separator (partition) etc.In other embodiments, first stream 34 can extend through some bodys 26, and second stream 36 can extend through other bodys 26.

Alternatively or additionally, separator 38 can be arranged in first or

second head

18,20, so that first stream and

second stream

34,36 are separated or are separated at least in part.In some embodiment such as the illustrated embodiment of Fig. 1-5, the outline line of separator 38 can be arranged to the inner tight of first and/or

second head

18,20 contact, and prevent that first and/or second working fluid from revealing between the outer periphery of the inwall of first and/or

second head

18,20 and separator 38.

As shown in Figure 2, separator 38 can have hole 39, and the size that hole 39 is set makes it can receive one or more bodys 26.In having the embodiment (such as the illustrated embodiment of Fig. 1-5) that is supported on the separator 38 in first and/or

second head

18,20, first working fluid that flows along first stream 34 can enter body 26 by the hole 39 that is formed in the separator 38.In these embodiments, separator 38 can prevent that first working fluid from entering body 26.In these embodiments, separator 38 can also be directed to second working fluid from second ingate 42 between the adjacent body 26, and can prevent that second working fluid from flowing into body 26.Separator 38 can prevent that also first working fluid from flowing between the body 26.

In the illustrated embodiment of Fig. 1-5, heat exchanger 10 is constructed to cross-flow heat exchanger, makes that the part of first stream 34 or first stream 34 is relative with the part of second stream 36 or second stream 36 or reverse.In other embodiments, heat exchanger 10 can have other structures and configuration, for example PARALLEL FLOW or reverse flow configurations.

In the illustrated embodiment of Fig. 1-5, heat exchanger 10 is passed through heat exchanger by structure as single, wherein first working fluid flows through in many bodys 26 at least one along first stream 34, and second working fluid flows along second stream 36 between the adjacent body 26.In other embodiments, heat exchanger 10 can be constructed to repeatedly pass through heat exchanger, wherein first working fluid for the first time by in flow through one or more bodys 26, then for the second time by in along with for the first time by in the opposite direction of the flow direction of first working fluid flow through one or more different bodys 26.In these embodiments, second working fluid can flow along second stream 36 between the adjacent body 26.

In other embodiments, heat exchanger 10 can be constructed to repeatedly pass through heat exchanger, wherein second working fluid flows between first pair of adjacent body 26 in passing through for the first time, then in passing through for the second time along with pass through for the first time in the opposite direction of the flow direction of second working fluid between another is to adjacent body 26, flow.In these embodiments, first working fluid can flow through in the body 26 at least one along first stream 34.

In the illustrated embodiment of Fig. 1-5, heat exchanger 10 comprises seven bodys 26, and its each body all has rectangular cross-sectional shape.In other embodiments, heat exchanger 10 can comprise one, two, three, four, five, six, eight or more a plurality of body 26, and its each body can have triangle, circle, square or other polygons, oblate or irregular shape of cross section.

As shown in Figure 2, with stacking direction 50 body 26 is assembled into together.In some embodiment that embodiment is shown, strengthen plate 52 and can be added in the piling up of body 26, to surround body 26 at least in part such as Fig. 1-5.In some this embodiment, reinforcement plate 52 can be positioned in top of piling up and the bottom position adjacent with body 26.Alternatively or additionally, can shell be set around at least some bodys 26.In having the embodiment that strengthens plate 52 and/or shell, strengthen plate 52 and/or shell and can protect body 26 to make it not be subjected to the influence of the mechanic effect of temperature fluctuation.

As mentioned above, in certain embodiments, the part of second stream 36 or second stream 36 can extend through the outer surface 45 of one or more bodys 26.In some this embodiment, can housing be set around body 26, leak into outside the heat exchanger 10 at second fluid between the adjacent body 26 preventing.Alternatively or additionally, can form flanks 56 along the outer surface 28 of body 26, to limit path 58 at least in part.

As shown in fig. 1, heat exchanger 10 can comprise connector 54, is used to support heat exchanger 10 and/or is used for heat exchanger 10 is fastened to external structure.In some embodiment such as illustrated embodiment, connector 54 can be set on the header 22,23.As shown in Figure 1, second ingate 42 and/or second outlet opening 46 can be provided with along connector 54.Still as shown in Figure 1, can be around second ingate 42 and/or second outlet opening 46 form sealed groove or seal washers 55, make can directly be fixed to heat exchanger 10 on the external structure and make second working fluid near second ingate 42 and/or second outlet opening 46, from heat exchanger 10, not leak.

In the such embodiment of the illustrated embodiment such as Fig. 1-5 with outward extending flank 56, the flank 56 of each body 26 can be fastened on the adjacent body 26.In some such embodiment, the flank 56 of a body 26 can soldering (solder), brazing (braze) or welding (weld) be to adjacent body 26.In other embodiments, can use the securing member of working in coordination, other conventional fasteners, bonding or adhesive joint material adjacent body 26 to be tightened together by interference engagement etc.

Additional projection, recessed or variant part 60 also can or alternately be arranged on the outer surface 45 of body 26, so that the support structure to heat exchanger 10 to be provided, prevent the distortion or the extruding of one or more bodys 26, keep the desired spacing between the adjacent body 26, improve the heat exchange between first and second working fluids, and/or produce the flow-disturbing (turbulence) of the one or both in first and

second streams

34,36.

In certain embodiments, heat exchanger 10 can comprise insert 66, to improve when the heat exchange between first and second working fluids when mobile along first and

second streams

34,36 respectively of first and second working fluids.Shown in Fig. 1-5, insert 66 can be arranged in body 26.Replacedly or additionally, insert 66 can be between adjacent body 26.In other embodiments, insert 66 can form with body 26, and can stretch out from the outer surface 45 of body 26.

In the illustrated embodiment of Fig. 1-5, insert 66 is supported in each body 26, and whole length or the substantially whole length along each body 26 is extended between the opposite end 68 of body 26.In other embodiments, insert 66 can be supported in the body 26 or be less than in whole bodys 26, and (one or more) insert 66 can extend to the whole length of cardinal principle of body 26 between the opposite end portion 68 of one or more bodys 26, perhaps replacedly, insert 66 can extend through body 26 along the remarkable length less than the whole length of (one or more) body 26.In other embodiments, can support or in each body 26, support two or more inserts 66 by each body 26.

In certain embodiments, insert 66 can be fastened to body 26.In some this embodiment, insert 66 can soldering, brazing or is soldered to body 26.In other embodiments, can insert 66 be connected to body 26, for example by interference engagement, bonding or adhesive joint material, securing member etc. with other modes.

In some embodiment, the end 68 of body 26 can be press fit in the one or both in first and

second heads

18,20 such as the illustrated embodiment of Fig. 1-5.In some this embodiment, when body 26 and/or insert 66 were press fit in first and/or

second head

18,20, the end 68 of body 26 and the insert 66 that is supported in the body 26 or between the body 26 can be out of shape at least in part.In some this embodiment, body 26 and/or insert 66 are extruded and keep compressing to guarantee that body 26 and/or insert 66 are in the orientation of expectation, prevent to leak.

In the illustrated embodiment of Fig. 1-5, insert 66 is made by folding sheet metal.In other embodiments, the shape of expectation can be cast or be molded as to insert 66, and can form by other materials (for example, aluminium, iron and other metals, composite etc.).In further embodiments, can be in any way with insert 66 cutting or machined moulding, insert 66 can be molded or suppress, and can wait with any combination of these operations and make insert 66.

Shown in Fig. 2,4 and 5, insert 66 can be undulatory, and can have a series of peak portion 72 that replaces and paddy portion 74.Shown in Fig. 2,4 and 5, peak portion 72 and paddy portion 74 can contact with body 26 corresponding upper and lower inboards respectively, and side wing 76 can extend (for example, in the illustrated embodiment of Fig. 2, Fig. 4 and Fig. 5, extending with vertical substantially direction) between adjacent peak portion 72 and paddy portion 74.

In some embodiment that embodiment (hereinafter describing in detail) is shown such as Fig. 6 and Fig. 7, side wing 76 can extend with the direction of basic straight line at (for example, between the upper and lower opposite side in the illustrated embodiment of Fig. 6 and Fig. 7) between the relative inner side.In other embodiment such as the illustrated embodiment of Fig. 1-5, side wing 76 can extend with non-directional direction at (for example, between the upside and downside in the illustrated embodiment of Fig. 1-5) between the relative inner side of body 26.In the illustrated embodiment, peak portion 72 and paddy portion 74 extend along vertical dimension of insert 66 and body 26.In other embodiments, insert can only contact with a side of body 26.

As Fig. 2, Fig. 4 and shown in Figure 5, in some this embodiment, side wing 76 can have corrugated cross sectional shape substantially.In other embodiments, insert 66 can have other shapes and structure.For example, in certain embodiments, insert 66 can have wedge angle, square or erose peak portion 72 and/or paddy portion 74.In other embodiments, insert 66 can have zigzag or sinusoidal profile.

In having some embodiment of wavy cross-section shape such as the illustrated embodiment of Fig. 1-5, insert 66 is as elastic component work, to absorb or to absorb at least in part vibration and/or absorption expansion and the contraction by the caused insert 66 of change of the implantation temperature of first and/or second working fluid.In some this embodiment, the elasticity of contoured insert 66 prevents and/or has reduced breaking or damaging of insert 66.Alternatively or additionally, the elasticity of contoured insert 66 prevents and/or has reduced breaking or damaging of coupling part (for example, tin welding spot, brazing point or pad etc.) between the inboard of the peak portion 72 of insert 66 and paddy portion 74 and body 26.In certain embodiments, the wavy cross-section of insert 66 can be only extended on the part of the length L of insert 66.For example, wavy cross-section may only be arranged on the end of body 26, links to each other with

head

18,20 at this place, end insert 66, perhaps alternatively, is arranged on body 26 and/or insert 66 and stands the maximum thermal stress and the place of mechanical stress.

As Fig. 2, Fig. 4 and shown in Figure 5, can form at least one fault of construction 78 along at least one side wing 76 of insert 66.In certain embodiments, fault of construction 78 can be included in the groove that extends along the whole length L or the substantially whole length L of side wing 76 between the opposite ends 80 of insert 66.In other embodiments, groove 78 can extend (for example, groove 78 can be interleaved along the length L of flange 76) along the length less than the whole length L of side wing 76.In certain embodiments, fault of construction 78 can only extend to the part of the length L of insert 66.For example, groove 78 can be arranged on these ends of insert 66, is connected with

head

18,20 at this place, end body 26, perhaps is arranged on body 26 and/or insert 66 and stands the maximum thermal stress and the place of mechanical stress.In certain embodiments, groove 78 or other faults of construction 78 can be formed on the two opposite sides of insert 66, further weaken insert with the specific location at side wing 76.

Fault of construction 78 can have various forms and shape, and can be arranged on the insert 66 with the variety of way that comprises indentation, punching press, etching etc.In certain embodiments, groove 78 has V-arrangement, U-shaped, rectangle or irregular cross section.Fault of construction 78 can be formed in the insert 66 before or after folding or cutting insert 66.

In having some embodiment such as the illustrated embodiment of Fig. 1-5 of groove 78, by the expansion of insert 66 or shrink the fracture of caused insert 66 and/or break and will take place along groove 78, wherein insert 66 is least firm at groove 78 places.In these embodiments, groove 78 is set at the position of the infringement minimum that reckoning with on the insert 66 breaks and/or rupture will cause the structural intergrity of insert 66, perhaps reckons with the position that influences minimum of breaking and/or rupturing and will cause the heat exchange performance of heat exchanger 10.

As Fig. 2, Fig. 4 and shown in Figure 5, groove 78 can be positioned at the centre position of the height H of side wing 76, makes groove 78 can separate maximum distance with the corresponding coupling part of peak portion 72 and paddy portion 74 and insert 66.Therefore, fault of construction (that is, the breaking of insert 66, fold etc.) will and the inboard of the peak portion 72 of insert 66 and paddy portion 74 and body 26 between tie point (for example, tin welding spot, brazing point, pad etc.) separate maximum distance.As mentioned below, this makes insert 66 to provide enough structural support to body 26, even the structure defectiveness of insert 66 also can make the heat exchange between the first fluid and second fluid maximize simultaneously.

In some embodiment that groove 78 is provided with along the side wing 76 of insert 66 such as the illustrated embodiment of Fig. 1-5, in the middle of any height H of all occurring in side wing 76 of breaking or rupture near place or its, position apart from tie point (for example, tin welding spot, brazing point, the pad etc.) ultimate range between the inboard of the peak portion 72 of insert 66 and paddy portion 74 and body 26.In these embodiments, even after side wing 76 breaks or ruptures, the height H of side wing 76 also equal approx side wing 76 before side wing 76 breaks or ruptures original height H 1/2.Alternatively or additionally, even after side wing 76 breaks or ruptures, the peak portion 72 of insert 66 and paddy portion 74 still link to each other with the inboard of body 26 (for example, in the illustrated embodiment of Fig. 1-5 inboard up and down).In this way, even after side wing 76 breaks or ruptures, insert 66 also keeps and being connected and continuing to provide structural support to body 26 maximums of body 26.

More properly, have realized that, can pass through formula 1/12 * (insert thickness T) * (insert height H) for corrugated insert 66 such as the insert 66 of the illustrated embodiment of Fig. 1-5 ³Calculate the rigidity of insert 66.Therefore, for the embodiment that breaks or rupture at groove 78 places such as the illustrated embodiment of Fig. 1-5, even after breaking or rupturing, the height H of side wing 76 still is maximized, the peak portion 72 of its further groove 78 and insert 66 and paddy portion 74 separate maximum distance and and the inboard of the peak portion 72 of insert 66 and paddy portion 74 and body 26 between tie point (for example, tin welding spot, brazing point, pad etc.) separate the distance of maximum.In this way, even after breaking or rupturing, each side wing 76 can keep the rigidity of maximum possible.

Fig. 6 and Fig. 7 show the alternative embodiment according to heat exchanger 210 of the present invention.Heat exchanger 210 shown in Fig. 6 and Fig. 7 is similar to the illustrated embodiment of above-described Fig. 1-5 in many aspects.Therefore, feature and element (and replacement of feature and element) for the embodiment of more complete description Fig. 6 and Fig. 7, except mutual inconsistent feature and element between the embodiment of the embodiment of Fig. 6 and Fig. 7 and Fig. 1-5, here with reference to the description of top embodiment in conjunction with Fig. 1-5.In the embodiment of Fig. 6 and Fig. 7 with the embodiment of Fig. 1-5 in feature and the corresponding feature of element and element with 200 serial numbers.

In the illustrated embodiment of Fig. 6 and Fig. 7, the body 226 of heat exchanger 210 supports to have the insert 266 of a series of peak portions 272 that replace and paddy portion 274.Shown in Fig. 6 and Fig. 7, peak portion 272 and paddy portion 274 can engage with the inboard up and down of corresponding body 226 as also.In the illustrated embodiment of Fig. 6 and Fig. 7, side wing 276 can extend between adjacent peak portion 272 and paddy portion 274 with vertical substantially direction.

As shown in Figure 6 and Figure 7, side wing 276 can be with the direction of basic straight line the extending between the inboard up and down of body 226, and can be basically perpendicular to the inboard up and down of body 226.In other embodiments, insert 266 can have other shapes and structure.

Groove 278 can form along at least some side wings 276 of insert 266.Groove 278 can have various forms and shape, and can provide insert 266 with the variety of way of for example indentation, punching press, bending etc.As shown in Figure 6 and Figure 7, groove 278 can be positioned at the position of the infringement minimum that reckoning with on the insert 266 breaks and/or rupture will cause the structural intergrity of insert 266, and/or reckon with the position that influences minimum of breaking and/or rupturing and will cause the heat exchange performance of heat exchanger 210.

As shown in Figure 6 and Figure 7, groove 278 can be positioned at the centre position of the height H of side wing 276, make groove 278 to separate maximum distance with the peak portion 272 and the paddy portion 274 of insert 266, and make groove 278 will and the inboard of the peak portion 72 of insert 66 and paddy portion 74 and body 26 between tie point (for example, tin welding spot, brazing point, pad etc.) separate maximum distance.

Only showed top description and illustrated embodiment in the accompanying drawings, and do not meant that restriction as notion of the present invention and principle by the mode of example.Therefore, those skilled in the art should be realized that under the situation that does not exceed the spirit and scope of the present invention to have the various changes of element and structure thereof and layout.

Related application

The application requires to submit in the priority of the U.S. Provisional Application sequence number 60/881,919 on January 23rd, 2007.

Claims

1. heat exchanger comprises:

First stream that is used for first working fluid;

Second stream that is used for second working fluid;

Corrugated insert along described first stream setting;

The position is arranged on the fault of construction on the described insert, makes to have precedence over other positions on the described insert in described position and the recurring structure fracture;

Limit the body of one in described first stream and second stream at least in part, described insert is secured to described body.

2. heat exchanger according to claim 1, wherein, described fault of construction comprises groove.

3. heat exchanger according to claim 1, wherein, described fault of construction comprises staggered groove.

4. heat exchanger according to claim 1, wherein, described corrugated insert comprises peak portion and adjacent paddy portion, wherein, described fault of construction is arranged between described peak portion and the described paddy portion.

5. heat exchanger according to claim 4, wherein, on the direction of the folding line that is basically parallel to described insert, described peak portion and described paddy portion extend along vertical dimension of described insert, and described fault of construction is extended along vertical dimension of described insert.

6. heat exchanger according to claim 4, wherein, described fault of construction is arranged between described peak portion and the described paddy portion basically equidistantly, makes described structural break occur in the centre position between described peak portion and the described paddy portion.

7. heat exchanger according to claim 1, wherein, described insert comprises adjacent folding line, makes described insert extend between the apparent surface of described body and be secured at described folding line place on the described surface of described body.

8. heat exchanger according to claim 7, wherein, the centre position of the height of the described insert of described fault of construction between the described apparent surface of described body.

9. heat exchanger according to claim 7, wherein, the described folding line of described fault of construction and described insert is separated.

10. heat exchanger according to claim 7, wherein, described folding line is fastened on the described surface of described body by welding.

11. heat exchanger according to claim 7, wherein, described folding line is fastened on the described surface of described body by soldering or brazing.

12. a heat exchanger comprises:

Head;

Be fastened to the body of described head; And

Be fastened at least one surperficial corrugated insert of described body, described insert has groove, the described body that wherein said groove forms and is secured to described insert along at least a portion of the length of described insert described spaced.

13. heat exchanger according to claim 12, wherein, described insert limits adjacent shank, and wherein said groove is provided with along one of described shank.

14. heat exchanger according to claim 13, wherein, at least a portion of one in the described shank has wavy cross-section.

15. heat exchanger according to claim 13, wherein, described insert is secured between the apparent surface of described body, and wherein, described groove makes that along described insert setting described insert still keeps being fastened to described apparent surface after structural break.

16. heat exchanger according to claim 15, wherein, after structural break, the described shank of described insert provides enough structural support for the described apparent surface of described body.

17. heat exchanger according to claim 13, wherein, described corrugated insert comprises peak portion and adjacent paddy portion, and wherein, described groove is arranged between described peak portion and the described paddy portion.

18. heat exchanger according to claim 13, wherein, described corrugated insert comprises peak portion and adjacent paddy portion, wherein, be arranged on to the first-class substantially distance of described groove between described peak portion and the described paddy portion, make structural break occur in the centre position between described peak portion and the described paddy portion.

19. heat exchanger according to claim 13, wherein, described groove has the basic cross section of V-arrangement that is.

20. the heat exchanger of an insert that has body and supported by described body, described insert comprises:

The corrugated part, it defines peak portion and adjacent paddy portion;

Groove, it extends along vertical dimension of described insert between described peak portion and adjacent described paddy portion, and provides preferential position for structural break.

21. heat exchanger according to claim 20 wherein, is arranged on to the first-class substantially distance of described groove between described peak portion and the described paddy portion, makes described structural break occur in the centre position between described peak portion and the described paddy portion.

22. heat exchanger according to claim 20, wherein, the maximum distance apart of described groove between described peak portion and described paddy portion.

23. heat exchanger according to claim 20, wherein, at least one at least one position along described peak portion and described paddy portion, described insert links to each other with the apparent surface of described body.

24. heat exchanger according to claim 20, wherein, the basic upper edge of described groove whole vertical dimension of described insert and extends.

25. heat exchanger according to claim 20, wherein, described vertical dimension of described insert stops at the opposed end of described insert, and wherein, described groove extends to along the position of described vertical dimension of described insert from the end of described insert.

26. heat exchanger according to claim 25, also comprise head, the end of described body extends in the described head, wherein, described insert extends to the whole basically length of described body, and described groove extends to the position that described body links to each other with described head.

27. heat exchanger according to claim 25, also comprise head, the end of described body extends in the described head, wherein, described insert extends to the whole basically length of described body, and described groove extends beyond the position that described body links to each other with described head.

28. the method for an assembled heat interchanger may further comprise the steps:

Heat exchanger tube is provided;

Insert is navigated in the described body;

Described insert is connected to the inner surface of described body;

Tie point maximum distance apart between the described inner surface of distance described insert and described body forms fault of construction along at least a portion of the length of described insert, makes fracture along described fault of construction generation.

29. method according to claim 28 wherein, forms described fault of construction and comprises the formation groove, and wherein, described fault of construction is formed the cross section with one in U-shaped, V-arrangement or rectangle substantially.

30. method according to claim 28 wherein, forms described fault of construction by one in indentation, punching press and the welding.

31. method according to claim 28 wherein, is connected to described insert by welding the described inner surface of described body.

32. method according to claim 28 wherein, is connected to described insert by brazing or soldering the described inner surface of described body.

33. method according to claim 28 also comprises described insert is folded to form peak portion and paddy portion alternately.

34. method according to claim 33 wherein, formed described fault of construction before folding described insert.

35., wherein, after folding described insert, form described fault of construction according to the method for claim 33.

36. method according to claim 33, wherein, the described peak portion of described insert is connected with the opposite inner face of described body with paddy portion.