CN205664712U - Rectangle concavo -convex tube - Google Patents
Rectangle concavo -convex tube Download PDFInfo
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- CN205664712U CN205664712U CN201620536992.4U CN201620536992U CN205664712U CN 205664712 U CN205664712 U CN 205664712U CN 201620536992 U CN201620536992 U CN 201620536992U CN 205664712 U CN205664712 U CN 205664712U
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- font
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- tube
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Abstract
The utility model relates to a rectangle concavo -convex tube has stainless steel tube, its characterized in that: stainless steel tube's cross section is the rectangle, the surface I that corresponds the stainless steel tube on the long limit of rectangle and surface II along equal alternative a plurality of pit portions and the bellyings of being equipped with of length direction, and two surfaces in addition that correspond the stainless steel tube of rectangle minor face are smooth surface, pit portion comprises one or more " eight " style of calligraphy pit, the bellying is constituteed by one or more " style of calligraphy is protruding. It has solved the problem that the heat transfer effect is poor, occupation space is big, life is short that traditional heat exchange tube exists, under the prerequisite that does not increase occupation space, is showing improvement heat exchange efficiency, extension life.
Description
Technical field
This utility model relates to a kind of rectangle Concavo-convex tube, it is adaptable to use in the heat exchanger of all kinds of flow medias, especially
In automobile engine cooling EGR.
Background technology
The noxious emission of electromotor is the main source causing atmospheric pollution, important along with environmental protection problem
Property increasingly increase, reduce this target of Engine's Harmful Emission and become an important side of development of engine in the world today
To.Along with the consumption of world oil goods rises year by year, international oil price remains high, and the economy of diesel vehicle is outstanding day by day,
This makes diesel engine in occupation of increasingly consequence in power train in vehicle application.So carrying out Harmful Emissions of Diesel Engine controlling party
The research of method, is the top priority of the person that is engaged in Design Technology for Diesels.
Containing more oxysulfide and oxynitride in discharging due to diesel engine of vehicle, during waste gas cooling, sulfur can be formed
The corrosivity strong acid such as acid and nitric acid, thus cooler is produced corrosion；Additionally, EGT is the highest, so at this work bar
Under part, the requirement to cooler pipe is the highest.In vehicle engine exhaust gas cooling EGR, the heat exchanger tube being commonly installed
Material has normal straight tube, helical groove straight tube, spiral recess flat tubes, and wherein, normal straight tube heat transfer effect is poor, does not reaches preferable ring
Protect effect；Although helical groove straight tube forms turbulence effect, but owing to body is straight tube, required number of tubes is many, no
Arrange well, take up room greatly；Although and spiral recess flat tubes good effect of heat exchange, take up room little, solve the problems referred to above, but its
There are deformed threads, stress to concentrate very much at short axle, affect service life；The manufacturing process of spiral recess flat tubes is first in weldering simultaneously
Being connected on the pipe of type formation thread groove, be compressed into flat tube shape the most again, this first weldering, the manufacturing process of rear pressure make spiral shell
The weld of rotation groove flat tube the most easily ftractures, and service life is short.
Summary of the invention
The purpose of this utility model be to provide for a kind of solve above-mentioned tradition heat exchanger tube exist heat transfer effect poor, take
The rectangle Concavo-convex tube of the problem that space is big, service life is short, on the premise of not increasing and taking up room, significantly improves heat exchange effect
Rate, increases the service life.
The technical solution of the utility model is:
A kind of rectangle Concavo-convex tube, has rustless steel body, it is characterised in that: the cross section of described rustless steel body is square
Shape, the surface I of the rustless steel body on the corresponding long limit of rectangle and surface II are the most alternately provided with multiple pit part and convex
The portion of rising, the another two surface of the rustless steel body of corresponding rectangle minor face is smooth surface, and described pit part is by one or more
" eight " font pit forms, and described lobe is made up of one or more " one " font projection.
Above-mentioned rectangle Concavo-convex tube, the quantity of " eight " font pit of described pit part is one, described lobe
The quantity of " one " font projection is one, and " eight " the font pit on described surface I and surface II and " one " font projection are interlocked
Arrangement, wherein " eight " the font groove position on surface I is the most corresponding with " one " the font raised position on surface II, surface
" one " font raised position on I is the most corresponding with " eight " the font groove position on surface II, described " one " font projection
Length direction is parallel with the length direction of rustless steel body, the centrage place plane of described " one " font projection and " eight " font
The centrage place planes overlapping of pit, the arragement direction of " eight " the font pit on two surfaces is consistent.Program gas by
The wide mouth end direction of " eight " font pit flows into body, simultaneously because the convex role of " one " font, gas is at adjacent two
Time of taking in the range of " eight " font pit increases, and the time also making gas flow through whole body increases, and promotes heat exchange effect
Really.
Above-mentioned rectangle Concavo-convex tube, the quantity of " eight " font pit of described pit part is multiple, described surface I and surface
The position of " eight " the font pit on II is the most corresponding, and " eight " font of each pit part on described surface I or surface II is recessed
Cheat and form one or more rhombuses, each pit part on described surface II or surface I each along the arrangement of tube length direction
The arragement direction of " eight " font pit is contrary with the arragement direction of " eight " font pit on corresponding surface I or surface II；Institute
The quantity of " one " font projection stating lobe is one, the position phase that " one " font on described surface I and surface II is protruding
Correspondence, and " one " font on two surfaces mutually convexes to form cross-shaped arrangement.On program surface I or surface II " eight "
The arragement direction of font pit is contrary and " one " font convexes to form cross-shaped arrangement and all makes gas be formed more in body
Good turbulent effect, extends the time of taking in of gas, promotes heat transfer effect；" one " font on two surfaces is protruding mutually simultaneously
Support, form the fixing clearance between tube and tube, it is not necessary to tube support device is the most separately set, easy for installation.
Above-mentioned rectangle Concavo-convex tube, is provided with the length that " one " font on the surface of " eight " the font pit forming rhombus is protruding
Degree direction is vertical with tube length direction, the length direction of " one " font projection of the contralateral surface on this surface and tube length side
To parallel, to shorten tube length, reduction takes up room.
Above-mentioned rectangle Concavo-convex tube, the distance of described " eight " font pit and two smooth surfaces is equal, described " one " word
Type is protruding equal with the distance of two smooth surfaces.
Above-mentioned rectangle Concavo-convex tube, the aspect ratio range of the cross section of described rustless steel body is 2:1-3:1.
Above-mentioned rectangle Concavo-convex tube, the height of described " eight " font pit is 1mm-2mm.
Above-mentioned rectangle Concavo-convex tube, the height of described " one " font projection is 0.5mm-1.5mm.
Above-mentioned rectangle Concavo-convex tube, the opening angle of described " eight " font pit is 50 °-70 °.
The beneficial effects of the utility model are:
1, be rectangle due to body cross section, tube fluid centre-to-centre spacing tubing close together, and " eight " font pit with
The arrangement mode of " one " font projection makes turbulence effective, and exchange capability of heat is strong, and the coefficient of heat conduction is high, and heat transfer effect is obvious；
2, body profile rule, it is easy to arrangement, the device flat tube quantity of identical heat transfer requirements is substantially few than common tube, from
And reduce cumulative volume, save installing space；
3, first welding and suppress afterwards, finally utilize the water technology that rises to be stamped and formed out concaveconvex structure, molding mode stability is more preferable, position
Put freer；
4, outside body, protruding formation in installation process between tube and tube supports, it is not necessary to the most separately set support means, installation side
Just.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (corresponding embodiment 1, front)；
Fig. 2 is structural representation of the present utility model (corresponding embodiment 1, reverse side)；
Fig. 3 is structural representation of the present utility model (corresponding embodiment 2, front)；
Fig. 4 is structural representation of the present utility model (corresponding embodiment 2, reverse side).
Detailed description of the invention
Embodiment 1
As shown in Figure 1 and Figure 2, this rectangle Concavo-convex tube, there is rustless steel body, the cross section of described rustless steel body is square
Shape, the surface I 1 of the rustless steel body on the corresponding long limit of rectangle and surface II 2 be the most alternately provided with multiple pit part and
Lobe, the another two surface of the rustless steel body of corresponding rectangle minor face is smooth surface 5, and described pit part is by one or more
" eight " font pit 4 forms, and described lobe is made up of one or more " one " font protruding 3.In the present embodiment, described pit
The quantity of " eight " the font pit 4 in portion is one, and the quantity of " one " font projection 3 of described lobe is one, described surface I
1 and surface II 2 on " eight " font pit 4 and " one " font projection 3 be staggered, wherein " eight " font on surface I 1 is recessed
Cheat 3 positions protruding with " one " font on surface II 2,4 positions the most corresponding, protruding 3 positions of " one " font on surface I 1 and table
" eight " font pit 4 position on face II is the most corresponding.The length direction of described " one " font projection 3 and the length of rustless steel body
Degree direction is parallel, the centrage place plane of described " one " font projection 3 and the centrage place plane weight of " eight " font pit 4
Closing, the arragement direction of " eight " the font pit 4 on two surfaces is consistent.Program gas is by the wide mouth end of " eight " font pit 4
Direction flows into body, simultaneously because the effect of " one " font projection 3, gas is in the range of adjacent two " eight " font pits 4
Time of taking in increases, and the time also making gas flow through whole body increases, and promotes heat transfer effect.Described " eight " font pit 4
Equal with the distance of two smooth surfaces 5, described " one " font projection 3 is equal with the distance of two smooth surfaces 5.Described " eight "
The height of font pit 4 is 1mm-2mm.The height of described " one " font projection 3 is 0.5mm-1.5mm.Described " eight " font is recessed
The opening angle in hole 4 is 50 °-70 °.
In the present embodiment, the length-width ratio of the cross section of described rustless steel body is 3:1, the height of described " eight " font pit 4
Degree is 2mm, and the opening angle of described " eight " font pit 4 is 70 °, and the height of described " one " font projection 3 is 0.5mm.
Embodiment 2
As shown in Figure 3, Figure 4, this rectangle Concavo-convex tube, there is rustless steel body, the cross section of described rustless steel body is square
Shape, the surface I 1 of the rustless steel body on the corresponding long limit of rectangle and surface II 2 be the most alternately provided with multiple pit part and
Lobe, the another two surface of the rustless steel body of corresponding rectangle minor face is smooth surface 5, and described pit part is by multiple " eight " word
Type pit 4 forms, and described lobe is made up of " one " font protruding 3.
The position of " eight " the font pit 4 on described surface I 1 and surface II 2 is the most corresponding, each on described surface I 1
" eight " font pit 4 of pit part forms one or more rhombuses, in the present embodiment, each pit along the arrangement of tube length direction
Portion is formed two rhombuses by four " eight " font pits 4.Each " eight " font pit of each pit part on described surface II 2
The arragement direction of 4 and the arragement direction of " eight " font pit 4 on corresponding surface I 1 are contrary, then on surface I 1 and surface II 2
" eight " font pit 4 inside body, form the state of cross-distribution." one " font on described surface I 1 and surface II 2 is convex
Rise 3 position the most corresponding, and " one " font on two surfaces protruding 3 forms cross-shaped arrangements.In the present embodiment, if
The length direction of " one " the font projection 3 on the surface (surface I) of " eight " font pit 4 of tangible diamondwise and tube length side
To vertically, the length direction of " one " font projection 3 of the contralateral surface (surface II) on this surface is parallel with tube length direction, with
Shortening tube length, reduction takes up room.On program surface I or surface II arragement direction of " eight " font pit contrary and
" one " font convexes to form cross-shaped arrangement all makes gas form preferably turbulent flow effect in body, extends the appearance of gas
Stay the time, promote heat transfer effect；" one " font on two surfaces is protruding simultaneously mutually supports, and forms the installation between tube and tube
Space, it is not necessary to tube support device is the most separately set, easy for installation.
In the present embodiment, the height of described " eight " font pit 4 is 1mm, and the opening angle of described " eight " font pit 4 is
50 °, the height of described " one " font projection 3 is 1.5mm.
Claims (9)
1. a rectangle Concavo-convex tube, has rustless steel body, it is characterised in that: the cross section of described rustless steel body is rectangle,
Surface I and the surface II of the rustless steel body on the corresponding long limit of rectangle are the most alternately provided with multiple pit part and projection
Portion, the another two surface of the rustless steel body of corresponding rectangle minor face is smooth surface, and described pit part is by one or more " eight "
Font pit forms, and described lobe is made up of one or more " one " font projection.
Rectangle Concavo-convex tube the most according to claim 1, it is characterised in that: the quantity of " eight " font pit of described pit part
Being one, the quantity of " one " font projection of described lobe is one, " eight " the font pit on described surface I and surface II
" one " font projection is staggered, and wherein " eight " the font groove position on surface I is convex with " one " font on surface II
Playing position the most corresponding, " one " the font raised position on surface I is the most corresponding with " eight " the font groove position on surface II,
The length direction of described " one " font projection is parallel with the length direction of rustless steel body, the centrage that described " one " font is protruding
Place plane and the centrage place planes overlapping of " eight " font pit, the arragement direction of " eight " the font pit on two surfaces
Unanimously.
Rectangle Concavo-convex tube the most according to claim 1, it is characterised in that: the quantity of " eight " font pit of described pit part
For multiple, the position of " eight " the font pit on described surface I and surface II is the most corresponding, on described surface I or surface II
" eight " font pit of each pit part forms one or more rhombuses, described surface II or surface along the arrangement of tube length direction
The arragement direction of each " eight " font pit of each pit part on I and " eight " font on corresponding surface I or surface II
The arragement direction of pit is contrary；The quantity of " one " font projection of described lobe is one, on described surface I and surface II
The position of " one " font projection is the most corresponding, and " one " font on two surfaces convexes to form cross-shaped arrangement.
Rectangle Concavo-convex tube the most according to claim 3, it is characterised in that: it is provided with the table of " eight " the font pit forming rhombus
The length direction of " one " font projection on face is vertical with tube length direction, and " one " font of the contralateral surface on this surface is protruding
Length direction parallel with tube length direction.
5. according to the rectangle Concavo-convex tube described in claim 1 or 2 or 3, it is characterised in that: described " eight " font pit and two light
The distance on sliding surface is equal, and described " one " font is protruding equal with the distance of two smooth surfaces.
Rectangle Concavo-convex tube the most according to claim 1, it is characterised in that: the length-width ratio of the cross section of described rustless steel body
Scope is 2:1-3:1.
Rectangle Concavo-convex tube the most according to claim 1, it is characterised in that: the height of described " eight " font pit is 1mm-
2mm。
Rectangle Concavo-convex tube the most according to claim 1, it is characterised in that: the height of described " one " font projection is 0.5mm-
1.5mm。
Rectangle Concavo-convex tube the most according to claim 1, it is characterised in that: the opening angle of described " eight " font pit is
50°-70°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536992.4U CN205664712U (en) | 2016-06-06 | 2016-06-06 | Rectangle concavo -convex tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536992.4U CN205664712U (en) | 2016-06-06 | 2016-06-06 | Rectangle concavo -convex tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205664712U true CN205664712U (en) | 2016-10-26 |
Family
ID=57155993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620536992.4U Active CN205664712U (en) | 2016-06-06 | 2016-06-06 | Rectangle concavo -convex tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205664712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207526A (en) * | 2019-07-05 | 2019-09-06 | 湖北银轮机械有限公司 | Radiation pipe of heat exchanger and heat exchanger |
-
2016
- 2016-06-06 CN CN201620536992.4U patent/CN205664712U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207526A (en) * | 2019-07-05 | 2019-09-06 | 湖北银轮机械有限公司 | Radiation pipe of heat exchanger and heat exchanger |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |