CN106871689A - A kind of heat exchanger tube and heat exchanger with inner fin - Google Patents
A kind of heat exchanger tube and heat exchanger with inner fin Download PDFInfo
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- CN106871689A CN106871689A CN201710282193.8A CN201710282193A CN106871689A CN 106871689 A CN106871689 A CN 106871689A CN 201710282193 A CN201710282193 A CN 201710282193A CN 106871689 A CN106871689 A CN 106871689A
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- Prior art keywords
- fin
- heat exchanger
- raised
- tube
- exchanger tube
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
Abstract
The present invention relates to a kind of heat exchanger tube and heat exchanger with inner fin, including：Cross sectional shape is the body of elongated rectangular shape, and corresponding being provided with top and bottom is recessed along a plurality of paired strip of the tube fluid direction of motion in described body, and it is raised that described a plurality of strip depression forms strip in outer surface of tube body；Connected at least one with point boss or the raised fin of short-term shape in corresponding strip depression up and down.The present invention in heat exchanger tube by way of setting radiating fin, increase heat-transfer area, fin is secondary heat-transfer area, thermal current heats fin, heat on fin is by the strip projected parts on heat exchanger tube while heat exchange pipe surface is transferred to, transmitted into cooling liquid by strip projected parts, the point-like or short-term shape set on fin can be stirred and Interference Flow gas, it is to avoid carbon distribution and raising heat exchange efficiency.Because body and fin can be with punching productions, on the premise of heat exchange demand is met, it is possible to reduce the arrangement of fin, fin is reduced, and solder joint is less, and reliability is improved, and welds very convenient, is suitable for producing in enormous quantities, with the relatively low advantage of manufacturing cost.
Description
Technical field
It is a kind of setting of using of automobile engine the present invention relates to a kind of heat exchanger tube and heat exchanger with inner fin
It is standby, it is a kind of equipment that facility of engine is used, it is the heat-exchange apparatus that a kind of engine EGR system is used.
Background technology
For heat exchanger, improve heat exchange efficiency and reduce the volume of heat exchanger, be always the direction studied in the industry and
Theme, especially for the heat exchanger in automobile engine is applied, is keeping or is increasing heat exchanger effectiveness as far as possible
Under the premise of, the volume for reducing heat exchanger is even more important.Simultaneously it is also contemplated that the processing performance of product, if meet high-volume raw
The need for product.
Conventional heat exchanger is essentially two kinds of forms：Plate fin type heat exchanger and shell-and-tube exchanger, both heat are handed over
Parallel operation each has advantage and disadvantage.
Shell-and-tube exchanger is that tube bank, cold and hot two kinds of fluids are set in a cylindrical shape or the housing of rectangular cross-section
The exchange for carrying out heat is flowed through from space and the pipe external space in pipe respectively.Such heat exchanger selection range is wide, simple structure, work
Skill is good, is adapted to produce in enormous quantities.But the heat exchange efficiency of shell heat exchanger is relatively low with respect to plate fin type heat exchanger, can pass through
Strengthen internal heat exchange tubes to improve heat exchange efficiency, but can accordingly increase the pressure loss, due to the heat exchanger tube of shell heat exchanger
Between must have certain gap, therefore, volume is relatively large.
Plate-fin heat exchanger, be by the secondary surface composition between many block thin plates and plate, secondary surface both as rib face,
Tube sheet spacing and strengthen rigidity can be played a part of again.Such heat exchanger relative volume is smaller, and heat exchanger effectiveness is higher, but knot
Structure is complicated, be more expensive to manufacture.
Traditional plate fin type heat exchanger is usually Integral finned design, and fin is vertically flat, with starting
Raising of the machine to cooler for recycled exhaust gas performance requirement, under the confined space, can by using waveform integral fins come
Improve heat exchange efficiency, but must constantly reduce the spacing of fin and reach high-performance, so can in the case where carbon distribution is produced
The blocking between fin can be caused, so that the performance of cooler can not be played effectively；Further, since fin and flat tube or
The contact point of dividing plate is more, that is, pad is more, easily produces failure, same right in the case where fin falls off
Heat exchange property can produce large effect.
The content of the invention
In order to overcome problem of the prior art, the present invention to propose a kind of heat exchanger tube and heat exchanger with inner fin.
Described heat exchanger tube and heat exchanger, traditional plate-fin and shell-and-tube exchanger are combined, and fin is set in heat exchanger tube,
Form a kind of brand-new heat exchanger tube.
The object of the present invention is achieved like this：A kind of heat exchanger tube with inner fin, including：Cross sectional shape is strip square
The body of shape, corresponding being provided with top and bottom is recessed along a plurality of paired strip of the tube fluid direction of motion in described body,
It is raised that described a plurality of strip depression forms strip in outer surface of tube body；Up and down at least one is connected in corresponding strip depression
Band has point boss or the raised fin of short-term shape.
Further, described body is made up of upper and lower two parts.
Further, described outer surface of tube body is provided with support protrusion.
Further, described fin is being provided with bending with body depression joint portion.
Further, point-like projection described on fin is circular or elliptical shaped lobes.
Further, described short-term shape projection is the rectangle of four rounding of angle, or is the knot in the middle of the semicircle of two ends for rectangle
Zoarium, or be half fairing.
Further, the short-term shape is raised two one group, and every group of two short-term shape is raised in splayed arrangement, described
Splayed arranges the raised arrangement mode of short-term shape：Head to head, pin occurs repeatedly to pin, or the paired head of two splayeds
Correct pin occurs repeatedly to pin.
Further, described fin is monolithic setting, and raised projected direction is staggeredly to be spaced positive and negative setting.
Further, described fin be biplate set, the protrusion direction on monolithic fin facing one direction, two wings
Piece is combined, and forms opposite both direction raised.
A kind of heat exchanger using the above-mentioned heat exchanger tube with inner fin, including：Diffuser, the diffuser being sequentially connected
End pipe plate, heat exchange tube assemblies and shell, collector end pipe plate, collector；And water inlet pipe and outlet pipe, described set of heat exchange tubes
Part carries inner fin heat exchange tube using at least one set of.
The beneficial effect comprise that：By way of setting radiating fin in heat exchanger tube, increase is passed the present invention
Hot face, fin is secondary heat-transfer area, and thermal current heating fin, the heat on fin is being transmitted by the strip projected parts on heat exchanger tube
While to heat exchange pipe surface, transmitted into cooling liquid by strip projected parts, the point-like or short-term shape energy set on fin
Enough agitations and Interference Flow gas, it is to avoid carbon distribution and raising heat exchange efficiency.Because body and fin can be with punching productions, full
On the premise of sufficient heat exchange demand, it is possible to reduce the arrangement of fin, fin is reduced, and solder joint is less, and reliability is improved, welding ten
Divide convenient, be suitable for producing in enormous quantities, with the relatively low advantage of manufacturing cost.Use the heat converter structure ten of this heat exchanger tube
Divide compact, with heat exchange property higher, be difficult incrustation, cost is relatively low.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of heat exchanger tube described in embodiments of the invention one；
Fig. 2 is the structural representation of heat exchanger tube described in embodiments of the invention one, is the profile of the A-A in Fig. 1；
Fig. 3 is the structural representation of the body described in embodiments of the invention two；
Fig. 4 is the schematic diagram that projection is set on body described in embodiments of the invention three；
Fig. 5 is the schematic diagram of the fin edges bending described in embodiments of the invention four；
Fig. 6 is the fin schematic diagram with circular protrusions described in embodiments of the invention five, is B direction views in Fig. 5；
Fig. 7 is the fin schematic diagram with elliptical shaped lobes described in embodiments of the invention five, is B direction views in Fig. 5；
Fig. 8 is the fin schematic diagram raised with rectangle short-term section described in embodiments of the invention six, is B direction views in Fig. 5；
Fig. 9 is that the fin with the combination projection in the middle of the semicircle of two ends for rectangle described in embodiments of the invention six, seven shows
It is intended to, is B direction views in Fig. 5；
Figure 10 is the raised fin schematic diagram of the section of the short-term with half fairing described in embodiments of the invention six, seven, is
B direction views in Fig. 5；
Figure 11 is the fin schematic diagram raised with double splayed short-terms section described in embodiments of the invention seven, short-term therein
The raised shape of section is the rectangle of four rounding of angle, is B direction views in Fig. 5；
Figure 12 is the fin schematic diagram raised with double splayed short-terms section described in embodiments of the invention seven, short-term therein
The raised shape of section is that two ends semicircle centre is the combination of rectangle, is B direction views in Fig. 5；
Figure 13 is the oval raised fin schematic diagram that interlocks of monolithic fin described in embodiments of the invention eight, be in Fig. 7 C to
View；
Figure 14 is the streamlined staggeredly raised fin schematic diagram of monolithic fin described in embodiments of the invention eight, is D in Figure 10
Direction view；
Figure 15 is the positive and negative staggered biplate fin released state schematic diagram described in the embodiment of the present invention nine；
Figure 16 is that the positive and negative staggered biplate fin described in the embodiment of the present invention nine is combined view；
Figure 17 is the biplate fin released state schematic diagram of the positive and negative one-to-one corresponding arrangement described in the embodiment of the present invention nine；
Figure 18 is that the biplate fin of the positive and negative one-to-one corresponding arrangement described in the embodiment of the present invention nine is combined view；
Figure 19 is the heat exchanger appearance schematic diagram described in the embodiment of the present invention ten；
Figure 20 is the heat exchanger profile described in the embodiment of the present invention ten, is the profile of E-E in Figure 19.
Specific embodiment
Embodiment one：
The present embodiment is a kind of heat exchanger tube with inner fin, as shown in Figure 1.The present embodiment includes：Cross sectional shape is strip square
The body 1 of shape, corresponding being provided with top and bottom is recessed along a plurality of paired strip of the tube fluid direction of motion in described body
2, described a plurality of strip depression forms strip projection 3 in outer surface of tube body；It is connected in corresponding strip depression up and down
A few band has the fin 5 of point boss or short-term shape projection 4, sees Fig. 2.
Similar to traditional flat tube, its cross sectional shape is side long rectangle more long to tubular form described in the present embodiment, or
It is briefly the flat tube of cross section elongation, as shown in Fig. 2 two short sides of rectangle can be straight flange, or semicircle mistake
Cross（Such as the body cross sectional shape in Fig. 2）.
Body can be molded with a piece of sheet metal bending, it is also possible to be divided into upper and lower two parts, overlapped again or right after bending and molding
Connect and weld together.
It is critical only that for the present embodiment be provided with pipe the fin that multi-disc conducts heat, relative to the once heat transfer of flat tube
Face, fin is secondary heat-transfer area, and these fins are set along the flow direction of air-flow, and are firmly connected with body, and body is split
It is multiple narrow spaces, it is scattered to enter these small spaces after thermal current enters body.Thermal current is in these small spaces
During middle motion, the fin of composition small space is fully contacted, and the heat in gas is conducted to fin, fin is again by heat
Transmit to the tube wall contacted with coolant, coolant takes away heat.
Regular arrangement arch form or aerofoil profile vertically is raised or sunken on fin, and these raised and depressions can be done
The flowing of gas is disturbed, makes it in raised or sunken place's turbulization, can either sufficiently produce thermolysis, it is also possible to avoid product
Carbon.Traditional fin need to further reduce fin height to improve heat exchange property, increase the risk of clogged with soot, therefore,
The relatively conventional fin heat exchange pipe of the present embodiment has obvious advantage.
The raised or sunken of setting has various ways on fin.Single arch can be arranged in fin same position vertically
Type it is raised or sunken, it is also possible to arrange the raised or sunken of a pair of aerofoil profiles, be can see in the same side of fin raised and recessed
Sunken arch form or aerofoil profile is staggered, and the both sides of same fin are raised and depression is relative, and side is that raised opposite side is then right
Should be recessed.Raised is shaped as intermediate projections, and periphery extends naturally to fin body, and raised height is 0.4-2mm.This seed wing
Piece is particularly suitable for use as waste gas recycling（Abbreviation EGR）The heat exchange element of cooler, is placed on flat pipe or dividing plate in groups
Between, the groove of strip is disposed with the plane of flat pipe or dividing plate, fin is fixed with groove, forms the stream of high-temp waste gas
Circulation passage, due to arch form on fin or the raised or sunken arrangement of aerofoil profile, significantly increases the disturbance of fluid, thermal boundary layer
Obtain effective thinning so that the more conventional fin of heat transfer effect of cooler is further lifted, while being not easy to incrustation.
On the fin of strip, from terms of a side, raised and depression is disposed with, is seen in the another side of fin, it is convex
Rise and be seen as depression in the another side of fin, depression is seen as projection in the another side of fin, raised relative with the shape of depression
Should, raised is shaped as intermediate projections, and periphery extends and is connected to fin body naturally to fin body, fin radially edge
There is small straight bending.
Fin described in the present embodiment is strip fin, and the radially small straight bending in edge is C-shaped or in " Z "
Type, for fin and pipe or the overlap joint of dividing plate corresponding flat, can effectively strengthen the intensity of welding.
Raised or sunken described in the present embodiment is arranged alternately.Fin is only arranged in heat exchange as main heat exchange element
Its effect could be effectively played in device.Fin parallel arrangement between flat tube or two dividing plates, when gas passes through between fin
When, the projection of the two panels that is connected fin is corresponding with depression, makes airflow direction that larger bending to occur, with the advance of air-flow, gas
There is bending in stream direction, flow path is in " S " type, on the one hand extends the flow direction of air-flow, on the other hand to other direction
Air-flow is subject to raised intense impact, increased the disturbance of gas, is greatly thinned thermal boundary into improve the turbulent flow of fluid
Degree, heat transfer effect is greatly improved.Traditional fin is integral design, to realize the spacing between heat exchange efficiency higher, fin
It is smaller, and using the heat exchanger of the fin, under same boundary condition, it is possible to reduce the quantity of fin, make fin
Spacing increases, so as to reduce the risk of carbon distribution.
Raised or sunken depth on fin can be controlled in 0.4 ~ 2mm, and the requirement difference according to heat exchange property is adjusted
It is whole, individually fin is processed, the processing cost of part can be effectively reduced, so as to reduce overall manufacturing cost.
The upper and lower surface parallel arrangement of body has the projection of strip, and from terms of tubular body, the projection in outside is in pipe
Strip groove；The upper and lower surface of body there also is provided bulge, and the bulge of upper and lower surface is symmetrical.Because body end needs and tube sheet
Weld together, therefore body end need to reserve flat section, that is, long striped groove apart from the pipe end of body to have it is certain away from
From distance range is 2 ~ 10mm.Fin is placed within pipe with the groove one-to-one corresponding in body.
Fin is placed in the groove in body, and is corresponded, because groove distance pipe end has a certain distance, accordingly
Fin also have a certain distance away from pipe end.The height of fin is equal to body inner height plus two depth of groove, fin edge
The straight bending of radial direction is just corresponding with the plane in groove to overlap, and can effectively improve weld strength herein.
The bulge of two adjacent outer surface of tube body is corresponding, plays a part of support mutually, prevents the thermal deformation of body, so that
Solder joint comes off on flat tube at prevention fin, the effective realization for ensureing heat exchange property.
Raised or sunken on fin is shaped as being cubic, is rectangle with fin junction.Along fin axle
To（Airflow direction）Same position be disposed with two raised or sunken, two raised or sunken arrangements at an angle, angle
It is 15 ~ 165 °.It is raised or sunken on fin to may be arranged to along the axial direction of fin（Airflow direction）, one group of raised and one group of depression
It is arranged alternately, what is be arranged alternately is raised with depression is for positive aerofoil profile and aerofoil profile is alternateed.
Raised or sunken shape can be with tapered on fin（It is similar to fairing, the cross sectional shape of described fairing
It is streamlined, fairing is formed after revolution）, streamwise, section becomes larger, then rapid diminution, between the face of each projection
Rounding off.Along the same position of fin axial direction be disposed with two it is parallel raised or sunken.When high-temperature gas leads between fin
Out-of-date, by the intense impact of two lateral processes, gas constantly shrinks and expands, and disturbance is obvious, is effectively thinned thermal boundary
Layer, improves heat transfer effect.Compared with traditional finned heat exchanger, using the heat exchanger of the fin, the spacing of fin increases,
So as to reduce the risk of carbon distribution, heat exchange efficiency is set to remain at level higher.
Fin can arrange that two panels fin is superimposed to form a combination fin, combines the appearance of fin with biplate
Face is projection.Each fin only comprising unilateral projection, is sequentially arranged after fin stack combinations as independent heat exchange element
In a heat exchanger.High-temperature gas passes through between combine fin, due to staggeredly raised presence so that the flow path of gas is in
Waveform.
Two identical fins are superimposed to form a combination fin, and combination fin is arranged in sequence, should
With in a heat exchanger when, fin be placed in flat tube or dividing plate between.The bulge-structure of fin, can be effectively increased fluid
Turbulivity, improves the heat exchange efficiency of heat exchanger.
Embodiment two：
The present embodiment is the improvement of embodiment one, is refinement of the embodiment one on body.Body described in the present embodiment is by upper
Lower two parts 101,102 are constituted, as described in Figure 3.
For ease of processing body, body is divided into upper and lower two parts by the present embodiment, after bending, is connected to become in dogleg section
Integrally.That is, body has two boards bending to be welded, there are two connection weld bonds.The body of so design has very good
Good processing performance.Strip projection in body plate face can be with very convenient punch forming, while it is convenient to be also convenient for fin
It is welded in body.The design that the interface of two parts body can be symmetrical up and down is in the both sides of body, it is also possible in Fig. 3
The body position for being disposed proximate to side bending like that staggeredly.Because the shape of upper lower tube body is completely the same, it is possible to use same
One mould punching is molded, and saves the cost of mould.
Embodiment three：
The present embodiment is the improvement of above-described embodiment, is refinement of the above-described embodiment on body.Body described in the present embodiment
Outer surface is provided with support protrusion 103, as shown in Figure 4.
Heat exchanger tube is operationally passed through high-temperature gas, and body can occur thermal expansion in itself, becomes the distance between heat exchanger tube
Small, this is extremely harmful.The distance between heat exchanger tube diminishes, it is meant that the circulation passage of coolant narrows, and have impact on cooling
Liquid band walks the efficiency of heat.To maintain the distance between heat exchanger tube constant, the present embodiment is provided with point-like or short-term outside body
The projection of shape, the raised interaction between two adjacent heat exchange tubes can effectively place close to each other, the dimension between body
Hold distance each other.
Example IV：
The present embodiment is the improvement of above-described embodiment, is refinement of the above-described embodiment on fin.Fin described in the present embodiment
Bending 501 is being provided with depression joint portion, as shown in Figure 5.
Fin described in the present embodiment is strip fin, and radially edge is provided with small straight bending.This bending
Mode has two kinds, and one kind is in " C " font, as in Figure 2-4.Another kind is in " Z " font, as shown in Figure 5.This fin edges
Small bending be used for fin and the obverse overlap joint of body, can effectively strengthen the intensity of welding.
Embodiment five：
The present embodiment is the improvement of above-described embodiment, is refinement of the above-described embodiment on the point-like projection on fin.This implementation
Point-like projection described in example is circular, as shown in fig. 6, or elliptical shaped lobes, as shown in Figure 7.
Circular protrusions and elliptical shaped lobes are a kind of fairly simple convex shapes of processing, and can play very good
Interference air motion effect.The arrangement mode of circular protrusions and elliptical shaped lobes on fin has various, can be single row
Row, or two rows, or three circles or oval shaped arrangements of a row.For ellipse, also two kinds selections, one
It is that oval major axis is consistent with air motion direction to plant, and a kind of is that oval major axis is vertical with airflow direction.
Embodiment six：
The present embodiment is the improvement of above-described embodiment, is refinement of the above-described embodiment on the short-term shape projection on fin.This reality
The rectangle that the short-term shape projection described in example is four rounding of angle is applied, as shown in figure 8, or being the combination in the middle of the semicircle of two ends for rectangle
Body, as shown in figure 9, or be half fairing, as shown in Figure 10.
The shape of short-term shape projection has multiple choices, can be rectangle, two semicircles centres plus rectangle of four rounding of angle etc..
The mode of arrangement also has multiple choices, can be major axis along multiple choices such as airflow direction, vertical direction, incline directions.
For the setting of air-flow face is met at the big end for producing preferable flow-disturbing effect, fairing.
Embodiment seven：
The present embodiment is the improvement of above-described embodiment, is refinement of the above-described embodiment on fin.Short-term shape described in the present embodiment
Raised two one group, every group of two short-term shape is raised in splayed arrangement, the raised arrangement of described splayed arrangement short-term shape
Mode is：Head to head, pin occurs repeatedly to pin, as shown in Figure 8,9, or the paired head to head pin of two splayeds to pin repeatedly
Occur, as shown in Figure 11,12.
The raised arrangement on fin of the present embodiment middle short line shape is in splayed, or referred to as aerofoil profile is arranged, specially：It is short
Wire is raised into occurring, the raised major axis of two short-term shapes respectively with airflow direction into opposite certain angle, similar to
The wing of sweepback, or splay one stroke to the left and another to the right.The angle of angle between the raised major axis of short-term shape and airflow directionα
Selected between 0 ~ 90 degree, see Fig. 8,9.
Embodiment eight：
The present embodiment is the improvement of above-described embodiment, is refinement of the above-described embodiment on fin.Fin described in the present embodiment
For monolithic is set, raised projected direction is staggeredly to be spaced positive and negative setting.
Raised projected direction be for fin plate face, if described from the one side angle of fin, can be by
Fin surface describes to be a projection, a depression, occurs repeatedly.Figure 13 is the elliptical shaped lobes for staggeredly occurring, and Figure 14 is friendship
The streamlined projection that mistake occurs.
Embodiment nine：
The present embodiment is the improvement of above-described embodiment, is refinement of the above-described embodiment on fin.Fin described in the present embodiment
For biplate is set, facing one direction, two fins are combined the protrusion direction on monolithic fin, form two opposite sides
To projection.
Described biplate is set, be exactly two fins with together with, the protrusion direction on each fin is unanimously to a side
To raised back-to-back on fin, two are combined.Figure 15,17 show the separate state of two panels fin, and Figure 16,18 show
The state that two panels fin is combined is shown.
Figure 15-19 shows two kinds of different projection arrangement modes, and a kind of is the mode at positive and negative interval, as shown in Figure 15,16.
Another kind is positive and negative one-to-one mode, as shown in Figure 17,18.
Embodiment ten：
A kind of heat exchanger using the heat exchanger tube with inner fin described above, including：Diffuser 7, the diffusion being sequentially connected
Device end pipe plate 8, heat exchange tube assemblies and shell 9, collector end pipe plate 10, collector 11；And water inlet pipe 12 and outlet pipe 13, see
Figure 19, described heat exchange tube assemblies 14 carry inner fin heat exchange tube using at least one set of, see Figure 15.
Heat exchanger described in the present embodiment, is particularly suited for engines exhaust gas recirculation cooling system, is cooled down as EGR
Device is used.
The heat exchange tube assemblies that heat exchanger described in the present embodiment is used are the flat tube with inner fin, the fin in pipe
Along the raised or sunken of the regular interlaced arrangement arch form of airflow direction or aerofoil profile, and end radially is disposed with small folding
It is curved, a plurality of strip projection is set along pipe range direction in the plane of flat-shaped tube outer surface, the inside of flat pipe corresponds to groove, long
Strip fin is arranged in the corresponding strip connected in star in flat pipe inside, and the bending on fin is affixed with flat tube upper groove inner plane
Close, it is ensured that the fastness of welding；Fin fixes the circulation passage for forming high-temp waste gas in a groove, due to arch form on fin
Or the raised or sunken arrangement of aerofoil profile, the disturbance of fluid is significantly increased, thermal boundary layer obtains effective thinning so that cold
But the more conventional fin of the heat transfer effect of device is further lifted, while being not easy to incrustation.Cooling agent is formed between flat pipe and shell
Circulation passage, flat-shaped tube outer surface is also evenly arranged several bulges raised higher than strip, and arrangement is in a heat exchanger
Adjacent flat pipe mutually supported by bulge, it is to avoid flat pipe temperature distortion, simultaneously because the setting of bulge cause cooling
The flowing of liquid is strengthened, and the heat exchange property to improving cooler has facilitation.
Heat exchanger tube can occur in groups, have two groups of heat exchanger tubes in such as Figure 15, it is possibility to have more multigroup heat exchanger tube.
Finally it should be noted that being merely illustrative of the technical solution of the present invention and unrestricted above, although with reference to preferable cloth
Scheme is put to be described in detail the present invention, it will be understood by those within the art that, can be to technology of the invention
Scheme（The form of such as body, straight tube or U-tube, the form of fin, projection form, the form of heat exchanger etc.）Modify
Or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a kind of heat exchanger tube with inner fin, it is characterised in that including：Cross sectional shape is the body of elongated rectangular shape, described
Corresponding being provided with top and bottom is recessed along a plurality of paired strip of the tube fluid direction of motion in body, described a plurality of strip
It is raised that depression forms strip in outer surface of tube body；Connected at least one with point boss or short in corresponding strip depression up and down
The raised fin of wire.
2. heat exchanger tube according to claim 1, it is characterised in that described body is made up of upper and lower two parts.
3. heat exchanger tube according to claim 2, it is characterised in that described outer surface of tube body is provided with support protrusion.
4. heat exchanger tube according to claim 3, it is characterised in that described fin is being provided with folding with body depression joint portion
It is curved.
5. heat exchanger tube according to claim 4, it is characterised in that point-like projection described on fin is circular or oval
It is raised.
6. heat exchanger tube according to claim 4, it is characterised in that described short-term shape projection is the rectangle of four rounding of angle,
Or be the combination in the middle of the semicircle of two ends for rectangle, or be half fairing.
7. heat exchanger tube according to claim 6, it is characterised in that the short-term shape is raised two group, and every group two short
Wire is raised to be arranged in splayed, and the raised arrangement mode of described splayed arrangement short-term shape is：Head to head, pin to pin repeatedly
Occur, or two paired head to head pin of splayed occur repeatedly to pin.
8. according to the heat exchanger tube that one of claim 5-7 is described, it is characterised in that described fin is set for monolithic, raised
Projected direction is staggeredly to be spaced positive and negative setting.
9. according to the heat exchanger tube that one of claim 5-7 is described, it is characterised in that described fin is set for biplate, monolithic wing
Facing one direction, two fins are combined protrusion direction on piece, form opposite both direction raised.
10. the heat exchanger of the heat exchanger tube of inner fin is carried described in a kind of usage right requirement 1, including：The diffusion being sequentially connected
Device, diffuser end tube sheet, heat exchange tube assemblies and shell, collector end pipe plate, collector；And water inlet pipe and outlet pipe, it is special
Levy and be, described heat exchange tube assemblies carry inner fin heat exchange tube using at least one set of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710282193.8A CN106871689B (en) | 2017-04-26 | 2017-04-26 | A kind of heat exchanger tube and heat exchanger with inner fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710282193.8A CN106871689B (en) | 2017-04-26 | 2017-04-26 | A kind of heat exchanger tube and heat exchanger with inner fin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106871689A true CN106871689A (en) | 2017-06-20 |
| CN106871689B CN106871689B (en) | 2018-12-04 |
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| CN201710282193.8A Active CN106871689B (en) | 2017-04-26 | 2017-04-26 | A kind of heat exchanger tube and heat exchanger with inner fin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107819172A (en) * | 2017-10-25 | 2018-03-20 | 珠海格力电器股份有限公司 | A kind of battery cartridge module, battery component and car |
| CN108235658A (en) * | 2018-01-04 | 2018-06-29 | 钦州学院 | The bionical water cooling plate minitype radiator of imitative dragonfly wing micro-structure surface |
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| CN2614340Y (en) * | 2003-04-09 | 2004-05-05 | 张慧君 | A heat exchange finned tube |
| CN1572407A (en) * | 2003-06-20 | 2005-02-02 | 株式会社电装 | Heat exchanger and its manufacturing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107819172A (en) * | 2017-10-25 | 2018-03-20 | 珠海格力电器股份有限公司 | A kind of battery cartridge module, battery component and car |
| CN108235658A (en) * | 2018-01-04 | 2018-06-29 | 钦州学院 | The bionical water cooling plate minitype radiator of imitative dragonfly wing micro-structure surface |
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| Publication number | Publication date |
|---|---|
| CN106871689B (en) | 2018-12-04 |
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