CN109900151A - Heat exchange tube, heat exchanger and air conditioner - Google Patents
Heat exchange tube, heat exchanger and air conditioner Download PDFInfo
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- CN109900151A CN109900151A CN201711306842.XA CN201711306842A CN109900151A CN 109900151 A CN109900151 A CN 109900151A CN 201711306842 A CN201711306842 A CN 201711306842A CN 109900151 A CN109900151 A CN 109900151A
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- protrusion
- exchanger tube
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- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 57
- 230000000694 effects Effects 0.000 abstract description 19
- 230000008859 change Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 31
- 239000003507 refrigerant Substances 0.000 description 21
- 238000009833 condensation Methods 0.000 description 17
- 230000005494 condensation Effects 0.000 description 17
- 230000001965 increasing effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 238000012546 transfer Methods 0.000 description 10
- 239000002826 coolant Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- 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
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a heat exchange tube, a heat exchanger and an air conditioner, wherein the heat exchange tube comprises a tube body (1), fins (2) are arranged on the outer wall of the tube body (1) along the circumferential direction, protruding parts are arranged on partial circumferential regions of the fins (2), and smooth fin segments (6) are formed on the rest circumferential regions of the fins (2). The heat exchange tube can reduce the thickness of a liquid film adhered to the surface of the fin by arranging the convex part on the fin, increase the heat exchange surface area, and can enhance the local phase change heat exchange capability of the heat exchange tube by the structure; meanwhile, the smooth fin segments can reduce the flow resistance of liquid and enable the liquid to flow out smoothly, so that a liquid-proof film is accumulated on the surfaces of the fins to reduce the circumferential heat exchange area and increase the thermal resistance, and the overall heat exchange effect of the heat exchange tube is improved comprehensively.
Description
Technical field
The present invention relates to air conditioner technical field more particularly to a kind of heat exchanger tubes, heat exchanger and air conditioner.
Background technique
In Refrigeration & Air-Conditioning industry, for water cooled condenser because compact-sized, applicability is wide, is developed rapidly.Water
Cold type heat exchanger majority is shell and tube exchanger, and within the condenser, it is exactly shell that exchanging heat on it, which influences a bigger factor,
The superiority and inferiority of middle performance of heat exchange tubes.Condenser pipe is in heat transfer process, and the gaseous coolant on the outside of condenser pipe is by undergoing phase transition and inside
Water exchange heat, since the thermal resistance of condenser pipe is primarily present in outside pipe, principle is strengthened according to weak side, it is aobvious to carrying out outside pipe strengthening
Must be particularly important, pipe external thermal resistance should be reduced to the maximum extent to improve heat exchange property.
For this purpose, condenser pipe generally increases its heat exchange at fin in the peripheral helical processing metal of tube body
Area, and secondary rolled is entirely circumferentially above carried out at the top of helical fin, boss or wedge angle are formed, first is that further increasing pipe
Outer surface area reduces heat second is that the thickness for condensing in liquid film on fin surface can be thinned due to the boss or wedge angle of formation
Resistance, improves the heat exchange property of condenser pipe.But find in actual use, such condenser pipe fail to make condenser reach compared with
High heat exchange efficiency, it is therefore desirable to be further improved.
Summary of the invention
The purpose of the present invention is to propose to a kind of heat exchanger tube, heat exchanger and air conditioners, can be improved the exchange capability of heat of heat exchanger tube.
To achieve the above object, first aspect present invention provides a kind of heat exchanger tube, including tube body, edge on the outer wall of tube body
It is circumferentially with fin, protrusion is equipped on the partially circumferentially region of fin, the rest part circumferential zones of fin are formed smoothly
Fin section.
Further, helically line is distributed fin on the outer wall of tube body.
Further, the region that fin is equipped with protrusion forms the first continuum in the circumferential, and smooth fin section exists
It is upwardly formed the second continuum week.
Further, smooth fin section is less than or equal to 180 ° in the circumferentially upper corresponding angular range of tube body.
It further, include multiple groups protrusion in the region on fin equipped with protrusion, multiple groups protrusion is in fin
Circumferentially-spaced setting.
It further, include the first continuum and the second continuum in the circumferential direction of fin, wherein the first continuum
Interior to be equipped with multiple groups protrusion, multiple groups protrusion is provided at circumferentially spaced along fin, and the second continuum is smooth fin section.
Further, the local location of smooth fin section is equipped with protrusion.
It further, include the first continuum and the second continuum in the circumferential direction of fin, wherein the first continuum
For along the continuum for being circumferentially with protrusion of fin, the second continuum is smooth fin section, the part of smooth fin section
Position is equipped with protrusion.
Further, in the state that heat exchanger tube is installed within the condenser, the first continuum is arranged upward, the second continuum
Domain is arranged downward.
Further, the free end of protrusion has sharp portion.
Further, at least two layers of protrusion is equipped on the radial height direction of fin.
Further, at least two layers of protrusion is arranged in a staggered manner in the circumferential direction along tube body.
Further, at least two layers of protrusion includes first layer protrusion and second layer protrusion, and fin top passes through rolling
Flower-shape is at indent, while the both ends of indent form first layer protrusion to extension on the outside of fin, and second layer protruding parts is in first
The radially inner side of layer protrusion, second layer protrusion are formed by annular knurl.
Further, each second layer protrusion is respectively positioned on the same side of fin.
Further, indent is obliquely installed relative to the axis of tube body.
Further, the first layer protrusion in adjacent fins mutually staggers setting in the circumferential direction of tube body.
Further, indent is in class triangle, trapezoidal or rectangle along the end in length direction；And/or the second layer is convex
The compressive plane in portion is in class triangle, trapezoidal or rectangle out.
Further, the inner wall of tube body is equipped with spiral helicine raised thread.
Further, raised thread is multiple thread.
Further, the cross section of raised thread is in class is trapezoidal or triangular structure.
Further, fin is integrally disposed upon on tube body and/or protrusion is integrally disposed upon on fin.
Further, at least one of fin and protrusion are molding by extrusion.
Further, in the circumferentially upper corresponding angle of tube body, proportion range is 1/ to smooth fin section throughout the circumferential
7~1/2.
Further, groove body 3 is formed between adjacent fins, groove body bottom is smooth, and the junction of groove body bottom and fin
In rounding off；Or groove body bottom is integrally in rounding off.
Further, fin and perpendicular to angle α=0.3 °~3.0 ° between the plane of tube body axis.
Further, thickness h 7=0.1~0.252mm of fin forms the width h8=of groove body between adjacent fins
0.252~0.558mm.
Further, the width h2=0.01 of depth h1=0.1~0.45mm or indent of the indent apart from fin top~
0.35mm or first layer protrusion extend length h3=0.05~0.2mm of protrusion to fin side.
Further, angle β=15 °~65 ° between indent inclined direction and fin top extending direction.
Further, second layer protrusion is relative to the outwardly extending width h4=0.05~0.2mm of fin surface or
Step height h5=0.15~the 0.45mm or second layer protrusion that two layers of protrusion bottom and tube body root are formed are in fin week
Upward width h6=0.05~0.32mm.
Further, quantity n2=35~100 of indent are set on individual pen fin 2；Or in 2 side of individual pen fin
Form quantity n3=35~100 of second layer protrusion.
Further, raised thread is relative to inclination angle alpha 1=15~55 ° of tube body axis or raised thread in pipe
The angle γ that the section side Shang Liangge of protrusion height h9=0.15~0.55mm or raised thread on internal wall are formed=
15~65 °；Or raised thread is multiple thread, multiple thread is distributed n1=10~80 in the whole circumference of inboard wall of tube body
It is a.
To achieve the above object, second aspect of the present invention provides a kind of heat exchanger, the heat exchanger tube including above-described embodiment.
Further, heat exchanger is condenser.
Further, the region that fin is equipped with protrusion is continuum in the circumferential, heat exchanger tube after mounting, fin
Region with protrusion is arranged upward, and smooth fin section is arranged downward.
To achieve the above object, third aspect present invention provides a kind of air conditioner, the heat exchanger including above-described embodiment.
Based on the above-mentioned technical proposal, the heat exchanger tube of the embodiment of the present invention, in the partially circumferentially region of heat exchange pipe outer wall fin
Upper setting protrusion, and the rest part circumferential zones of fin form smooth fin section, the liquid generated after heat exchange can pass through phase
Groove body export between adjacent smooth fin section.Such heat exchanger tube can be thinned by the way that protrusion is arranged on fin and be adhered to fin
The thickness of liquid film on surface, increases heat exchange surface area, this kind of structure can enhance the phase-change heat-exchange ability of its part；Meanwhile smoothly
Fin section can reduce liquid flowing resistance, flow out liquid swimmingly, gather to prevent liquid film in fin surface and reduce circumferential change
Heat area and increase thermal resistance, thus the comprehensive overall heat exchange effect for improving heat exchanger tube.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of one embodiment of heat exchanger tube of the present invention；
Fig. 2 is the fin structure schematic diagram after one embodiment of heat exchanger tube of the present invention is circumferentially unfolded；
Fig. 3 is the side view of fin after one embodiment of heat exchanger tube of the present invention is circumferentially unfolded；
Fig. 4 is the partial sectional view of heat exchanger tube one embodiment of the present invention；
Fig. 5 is the top view after one embodiment of heat exchanger tube of the present invention is circumferentially unfolded；
Fig. 6 is the full sectional view of one embodiment of heat exchanger tube of the present invention.
Description of symbols
1, tube body；2, fin；3, groove body；4, first layer protrusion；5, second layer protrusion；6, smooth fin section；7, it presses
Slot；8, raised thread；11, at wing section；12, smooth section；13, changeover portion.
Specific embodiment
The present invention described further below.In the following paragraphs, the different aspect of embodiment is defined in more detail.So
The various aspects of restriction can be combined with any other one aspect or many aspects, can not be combined unless explicitly stated otherwise.Especially,
It is considered as preferred or advantageous any feature can be considered as preferred or advantageous feature with other one or more.
The terms descriptions merely for convenience such as " first " that occurs in the present invention, " second " have same names to distinguish
Different building blocks, be not offered as successively or primary-slave relation.
In the description of the present invention, it is to be understood that, term " on ", "lower", "left", "right", "front", "rear", " week
To ", the orientation or positional relationships of the instructions such as " axial direction " and " radial direction " be to be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention, rather than the device of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the scope of the invention.
Even if inventor has found to add more boss or wedge angle on heat exchanger tube external helicoid fin in use,
It is also difficult to obtain ideal heat exchange property in condensation process, therefore inventor studies the heat transfer process of condenser pipe.
It is found in the Experimental Study of Heat Transfer of condenser pipe, for condenser pipe during realizing condensing heat-exchange, gaseous coolant is most of in condenser pipe circle
The outer surface of upper of circumferential direction is condensed, and is condensed channel of the liquid refrigerants of formation between fin later and is flow to condenser pipe
In the following, and draining from condensation bottom of the tube.
Condenser pipe in the prior art in the reinforcing condensation process of phase-change heat-exchange, generally passes through ELEMENTARY INTRODUCTION TO NON and squeezes outside pipe
Forming technique increases the density of fin or the quantity of sharp portion to enhance condensation effect, and is handled in fin top, is formed
Sharp protrusion.Because this mode is capable of increasing heat exchange surface area, and can make thinner to large extent according to common thinking
The refrigerant liquid film on fin is condensed in, thermal resistance is reduced, to improve the heat exchange property of condenser pipe.But inventors noted that wing
The increased boss in piece surface and wedge angle also increase the resistance of liquid film drippage and discharge simultaneously, cannot be swimmingly from heat exchange bottom of the tube
It flows away, liquid film is caused to accumulate in fin surface, make thickening but also will increase thermal resistance to influence heat exchange property for liquid film not only.
Inventor conducts in-depth research condenser pipe strengthening mechanism as a result: on the one hand, when needing to be thinned refrigerant condensation
The liquid film being adhered directly on condensation tube outer surface fin, to reduce thermal resistance to improve heat exchange property；On the other hand, need and
When will condense pipe surface condensation liquid refrigerants drain, prevent liquid refrigerants accumulate in heat exchange surface make liquid film thicken and increase heat
Resistance.But there are restricting relations for these two aspects, it is difficult to combine.In this way, the quantity for individually increasing surface sharp portion is mentioning
Mistaken ideas have just been fallen into terms of high heat-exchanging performance, moreover, when being increased by the sharp portion quantity that surface knurling is formed, in circumferential size
In the case where certain, mold tooth punching knurled portion is thinned, and the intensity of gear hobbing can reduce in mold, be easy to appear mold and collapse showing for tooth
As to increase the difficulty of processing and cost of mold.
According to this thinking, the purpose of the present invention is combine reducer membrane for strengthening heat exchange and refrigerant liquid to drain in time
The problem of, to improve the overall heat exchange effect of condenser pipe.Such condenser pipe is in addition to can be used within the condenser, it is also possible in evaporator
In, therefore subsequent it is referred to as heat exchanger tube.
In a schematical embodiment, as shown in Figure 1, heat exchanger tube of the invention includes tube body 1, the outer wall of tube body 1
On circumferentially arranged with fin 2, form groove body 3 between the adjacent turn fin 2 axial along tube body 1.For example, tube body 1 is round tube, fin
2 helically line distribution or the fins 2 of multiple annular shapes are spaced setting on the outer wall of tube body 1 on the outer wall of tube body 1.It can
Alternatively, the shape of the needs such as ellipse, rectangle or polygon also may be selected in the section of tube body 1.Fin 2 is only in partially circumferentially area
Domain is equipped with protrusion, is smooth fin section 6 on rest part circumferential zones, i.e., protrusion is not arranged on 2 surface of fin, cold
The liquid generated after solidifying heat exchange is flowed out by the groove body 3 between adjacent smooth fin section 6.Wherein, protrusion, which can be, is located at wing
Boss or wedge angle on 2 surface of piece etc., shape is unrestricted.Preferably, protrusion is located at the side of fin 2.
Such heat exchanger tube is preferably used in horizontal condenser, and heat exchanger tube is horizontally mounted, and is passed through inside heat exchanger tube to be heated
Fluid, outside is full of gaseous coolant, for example, by using water or freon as refrigerant.Preferably, heat exchanger tube during installation, fin 2
The region for being equipped with protrusion is located above, and smooth fin section 6 is located below.
In heat transfer process, the most of outer surface of upper in heat exchanger tube circumferencial direction of gaseous coolant is condensed, and is exchanged heat
The fin 2 of pipe upper area is equipped with protrusion, and since protrusion is higher than 2 surface of fin, protrusion is relative to fin surface
Corner curvature increases, and the thickness for being adhered to liquid film on 2 surface of fin can be thinned, while also increasing heat exchange surface area, therefore
The upper area that heat pipe outer surface can be exchanged carries out enhanced heat transfer.In the lower area of heat exchanger tube, the energy that liquid film is thinned is weakened
Power weakens the enhanced heat transfer effect on fin 2, when the liquid refrigerants after making condensation flows downward under the effect of gravity, can subtract
The resistance that small liquid refrigerants flows in groove body 3, the ability that enhancing liquid refrigerants flows downward along groove body 3, makes liquid refrigerants
It swimmingly flows out from groove body 3, is gathered to prevent liquid film on 2 surface of fin, thus the comprehensive overall heat exchange effect for improving heat exchanger tube.
Heat exchanger tube of the invention solves the problems, such as the discharge of liquid refrigerants in condensation process, reduces heat exchanger tube fin lower part
Region is arranged protrusion and decays to overall heat exchange performance bring, and the part for exchanging heat pipe carries out condensation reinforcing, and optimizes cold
Solidifying drain effect has combined heat exchanger tube and the problem of liquid film is strengthened and drains liquid refrigerants in time is thinned in condensation process.
For heat exchanger tube of the invention, thinking usual in the prior art is breached, improves the setting of the fin portion of protruding above without focusing on
It on the problem of quantity, when making annular knurl mold, can also guarantee the intensity of gear hobbing, in order to avoid occurring collapsing tooth phenomenon, can reduce and add
Work difficulty and processing cost.
In a preferred embodiment, as shown in Figure 1, the region that fin 2 is equipped with protrusion forms the in the circumferential
One continuum, smooth fin section 6 form the second continuum.Such set-up mode is not increasing protrusion part density degree
In the case where, protrusions more as far as possible can be set in region of the tube body 1 for condensation, the thickness of liquid film is thinned, raising is changed
Thermal energy power.For example, embodiment as shown in Figure 1, when heat exchanger tube installation within the condenser when, fin 2 is equipped with the of protrusion
One continuum is located at the upper area of fin 2, and corresponding second continuum of smooth fin section 6 is located at the lower region of fin 2
Domain.
For embodiment shown in FIG. 1, it is preferable that smooth fin section 6 is less than in the circumferential corresponding angular range of tube body 1
Equal to 180 °.Such set-up mode can be in the case where guaranteeing heat exchanger tube drainage capacity, and increase fin 2 as far as possible protrudes above portion
Quantity improves exchange capability of heat so that thickness of liquid film is thinned.More preferably, smooth fin section 6 exists in the circumferential corresponding angle of tube body 1
Entire circumferential upper proportion range is 1/7~1/2.
It in another alternative embodiment, include multiple groups protrusion, multiple groups in the region on fin 2 equipped with protrusion
Protrusion is in the circumferentially-spaced setting of fin 2, and correspondingly, smooth fin section 6 also forms spaced structure.For example, base
In embodiment shown in FIG. 1, by the protrusion of 2 upper area of fin along the circumferential setting multiple groups of fin 2, and between multiple groups protrusion
Every setting.Multiple groups protrusion on such heat exchanger tube can also increase the surface area of tube body 1, while being thinned and condensing in fin surface
The thickness of upper liquid film reduces thermal resistance, improves the heat exchange property of condenser pipe.
It preferably, include the first continuum and the second continuum in the circumferential direction of fin 2, wherein the first continuum
Interior to be equipped with multiple groups protrusion, for multiple groups protrusion in the circumferentially-spaced setting of fin 2, the second continuum is smooth fin section 6.
For the structure shown in Fig. 1, the first continuum is the upper area of fin 2, convex circumferentially arranged with multiple groups in upper area
Portion out, the second continuum are the lower area of fin 2, and lower area is smooth fin section 6.
In another optional embodiment, protrusion is had additional in the local location of smooth fin section 6.For example, being based on
Embodiment shown in FIG. 1 increases a small amount of protrusion in the smooth fin section 6 of 1 lower area of tube body, if to condensed water from
Outflow does not constitute larger impact in groove body 3, within protection scope.Such heat exchanger tube still is able to reduce liquid flowing resistance,
It flows out liquid swimmingly, gather the circumferential heat exchange area of reduction in fin surface to prevent liquid film and increases thermal resistance, so that synthesis mentions
The overall heat exchange effect of high heat exchanger tube.
It preferably, include the first continuum and the second continuum in the circumferential direction of fin 2, wherein the first continuum
For along the continuum for being circumferentially with protrusion of fin 2, the second continuum is smooth fin section 6, and in smooth fin section 6
Local location have additional protrusion.For the structure shown in Fig. 1, the first continuum is the upper area of fin 2, upper zone
Domain is the continuum that protrusion is circumferentially with along fin 2, and the second continuum is the lower area of fin 2, and lower area is
Smooth fin section 6, can add a small amount of protrusion in the local location of smooth fin section 6.
Other than the various embodiments described above, alternatively, the structure type of the first continuum and the second continuum can
In any combination.In addition, the whole intermittent intervals setting in region and smooth fin section 6 of the fin 2 equipped with protrusion (such as be spaced
Scheme uniformly) is also within protection scope of the present invention.
It is being processed as shown in Figure 1, such heat exchanger tube is arranged between the sliding fin section 6 of regional peace of protrusion on fin 2
When formed boundary structure, for realizing the transition in two regions.Preferably, boundary structure is in class zigzag, helix, ladder-like
Or it is step-like etc. within the scope of the present invention.
The structure for protruding above portion to fin 2 below is described.In order to more clearly illustrate the structure of protrusion
And arrangement mode, heat exchanger tube shown in FIG. 1 is unfolded in circumferencial direction, Fig. 2 illustrates the partial structural diagram of fin 2,
Fig. 3 is the side view of 2 structure of fin.
Preferably, the free end of protrusion has sharp portion, is conducive to stretch liquid film during downward liquid flow,
Thickness of liquid film is thinned, strengthens the effect of partial condensation.Alternatively, protrusion may be designed in boss structure, protrusion
Free end is rounding off structure.
In order to increase the quantity of protrusion, to improve the ability that liquid film is thinned, it is preferable that broken section as shown in Figure 4
Figure is equipped at least two layers of protrusion on the radial height direction of fin 2.Certainly, it is only set on the radial height direction of fin 2
Set one layer of protrusion also within protection scope of the present invention.
In conjunction with shown in Fig. 1 to Fig. 3, at least two layers of protrusion is arranged in a staggered manner in the circumferential direction along tube body 1.For example, shown in Fig. 1
The fin 2 of heat exchanger tube is equipped with two layers of protrusion, and two layers of protrusion alternate intervals in the circumferential direction of tube body 1 are arranged, convex to make
Portion is uniformly distributed on the circumferential zones of heat exchanger tube out, and liquid film can be made while drawing thin liquid film, and thin and thick is uniform everywhere, makes to change
Thermal resistance is evenly distributed heat pipe everywhere, to improve the uniformity of heat exchanger tube heat exchange, and improves overall heat exchange ability.Moreover, this
Setting form also can process lower layer's protrusion slot milling, multilayer protrusion easy to process for hobboing cutter.Alternatively, at least two layers
Between protrusion it is facing each other also within protection scope of the present invention.
Preferably, as shown in figure 4, at least two layers of protrusion includes first layer protrusion 4 and second layer protrusion 5, second
Layer protrusion 5 is located at 4 lower section of first layer protrusion.
Wherein, as shown in figure 3, the formation of first layer protrusion 4 is to be carried out using annular knurl mold at the top of original fin 2
Secondary extrusion is formed.Specifically, indent 7 is formed by annular knurl in the width direction at 2 top of fin, indent 7 can be relative to tube body 1
Axis be obliquely installed, simultaneously because metal itself has good plasticity, the both ends of indent 7 are formed to extending on the outside of fin 2
First layer protrusion 4.Preferably, the side view of fin, the end face of 2 top indent 7 of fin after being circumferentially unfolded with reference to shown in Fig. 3
Shape is in class triangle, trapezoidal or rectangle etc. is inverted, in the case that the end surface shape of indent 7 assumes that its is top closed, by pressing
Bottom, inner sidewall and the top surface of slot 7 are enclosed.In top view after fin circumferentially deploying shown in Fig. 5, indent 7 relative to
The axis of tube body 1 is obliquely installed, and the two sides of fin 2 are serrated, and first layer protrusion 4 forms triangular structure.
Optionally, as shown in figure 5, angle β=15 ° between 2 top extending direction of 7 inclined direction of indent and fin~
65°.As shown in figure 3, on individual pen fin 2 indent 7 quantity n2=35~100.
Optionally, as shown in Figure 4 and Figure 5, depth h1=0.1~0.45mm or indent 7 of the indent 7 apart from 2 top of fin
Width h2=0.01~0.35mm or first layer protrusion 4 to 2 side of fin extend protrusion length h3=0.05~
0.2mm。
As shown in figure 3, second layer protrusion 5 is located at the radially inner side of first layer protrusion 4, second layer protrusion 5 passes through
Annular knurl is formed.Preferably, the compressive plane of second layer protrusion 5 is in inversion class triangle, trapezoidal or rectangle etc..Second layer protrusion
5 be to squeeze to be formed in the one of side of fin 2, does not increase weight additionally, while increasing the surface area of fin 2.In liquid
Refrigerant can further stretch liquid film during flowing downward, and thickness of liquid film is thinned, and strengthen partial condensation effect.
Preferably, each second layer protrusion 5 is respectively positioned on the same side of fin 2.As shown in figure 5, in the right side of fin 2
Equipped with second layer protrusion 5, second layer protrusion 5 is triangular in shape and has sharp portion.Second layer protrusion 5 can be reduced in this way
The width occupied in groove body 3 between adjacent fins 2, to retain wider fluid flow paths, in the premise that liquid film is thinned
Under the resistance that is subject to when minimizing liquid flowing.
Optionally, as shown in Figures 2 and 3, second layer protrusion 5 is relative to the outwardly extending width h4=of fin surface
Step height h5=0.15~0.45mm that 0.05~0.2mm or 5 bottom of second layer protrusion and 1 root of tube body are formed or the
Width h6=0.05~0.32mm of the two layers of protrusion 5 in 2 circumferential direction of fin.Second layer protrusion 5 is in 2 side shape of individual pen fin
At quantity n3=35~100.
Preferably, as shown in Figure 1, the first layer protrusion 4 in adjacent fins 2 is mutually staggered in the circumferential direction of tube body 1 and set
It sets, correspondingly, the second layer protrusion 5 in adjacent fins 2 also mutually staggers setting in the circumferential direction of tube body 1.Such setting side
Formula can make layout of the first layer protrusion 4 on heat exchanger tube more evenly, improve the uniformity that liquid film is thinned, enhanced heat exchange effect
Fruit.
For heat exchanger tube inside, with reference to Fig. 4, using pipe outside the mold of circumferential with groove that matches of extruding and inside,
The high internal tooth of certain rib is squeezed out on the inner wall of tube body 1, can be increased the disturbance of heat exchanger tube internal flow, be also increased simultaneously
Heat exchange area.
Preferably, the inner wall of tube body 1 is equipped with spiral helicine raised thread 8.Heat exchanger tube is same processing outside fin 2
When, it is rolled using with slotted lining core in raised thread 9 in pipe.
As shown in figure 4, the section of raised thread 8 is trapezoidal in class or is inverted triangular structure, top and tube body 1 form one
Body, two base angles are in rounding off, and the inner wall of raised root and tube body 1 is in rounding off.Exchange heat pipe inner wall is strengthened, no
Pipe internal surface product is increased only, while forming certain protrusion with inside pipe wall, increases the level of disruption of tube fluid, thus into
One step enhances heat transfer effect.
Optionally, as shown in figure 4, inclination angle alpha 1=15~55 ° that raised thread 8 is formed relative to 1 axis of tube body, convex
Play protrusion height h9=0.15~0.55mm of the screw thread 8 on 1 inner wall of tube body, the folder that two sides are formed on 8 section of raised thread
Angle γ=15~65 °.
Raised thread 8 in pipe can be evenly distributed or non-uniform Distribution.Heterogeneous distribution disturbs tube fluid
Dynamic effect is more excellent, with enhanced heat transfer effect.For example, raised thread 8 is multiple thread, multiple thread is high in machining efficiency, and whole
Spacing between a 1 inside adjacent protrusion screw thread 8 of tube body is consistent or not quite identical, can increase the disturbance effect to fluid
Fruit.Optionally, multiple thread is distributed n1=10~80 in the whole circumference of 1 inner wall of tube body.
For above-mentioned each embodiment, fin 2 can be integrally disposed upon on tube body 1, and protrusion can also be integrally disposed upon fin 2
On.The mode of being wholely set can reduce thermal contact resistance, to improve the heat exchange efficiency of heat exchanger tube.Preferably, in fin 2 and protrusion
At least one is molding by extrusion, can not additionally increase the weight of heat exchanger tube.
In a specific embodiment, as shown in figures 1 to 6, heat exchanger tube is added on dedicated fin roller mill
Work forms, strengthen using extrusion forming ELEMENTARY INTRODUCTION TO NON technique, outside the heat exchange tube using knife combination and annular knurl die assembly into
Row is extruded from, and inside is strengthened synchronous rolling when rolling fin on the outside using channel pressing die and formed, bilateral strengthen can simultaneously into
Row.
For example, outer diameter 19.05mm can be used, wall thickness is that the main pipe of 1.13mm is processed.Pipe is outer to be added using composable mold
Work goes out the fin 2 on the basis of main pipe in certain spiral angle.As shown in Figure 1, tube body 1 may include unprocessed 12 He of smooth section
Be machined with fin 2 at wing section 11, it is contemplated that installation and heat exchange demand, smooth section can be respectively equipped at the both ends at wing section 11
12, for realizing the installation of heat exchanger tube, can be connected by changeover portion 13 in smooth section 12 and between wing section 11.Wherein, at wing
It is machined with fin 2 in section 11, groove body 3 is formed between adjacent turn fin 2,3 bottom of groove body is smooth, and 3 bottom of groove body and fin 2
Junction be in rounding off；Or 3 bottom of groove body is integrally in rounding off, such set-up mode is conducive to refrigerant and flows away.
Optionally, as shown in Figure 1, fin 2 and perpendicular to angle α=0.3 °~3.0 ° between the plane of 1 axis of tube body.
Optionally, as shown in Fig. 2, thickness h 7=0.1~0.252mm of fin 2, the 3 width h8=of groove body that is formed between adjacent fins 2
0.252~0.558mm.
Then the fin 2 on tube body 1 in the circumferential zones of part is combined using special knurling tool and carries out annular knurl processing,
Remaining circumferential zones is without annular knurl processing.It is formed with indent 7 in the top annular knurl of fin 2, while forming indent 7, by
In the good plasticity of metal material itself, in fin 2 two sides self-assembling formation, two first layer protrusions 4.Further, first
4 lower part of layer protrusion is also formed with the second layer protrusion 5 for being only located at 2 side of fin.Fin is increased in knurled portion in this way
Surface area, while increasing wedge angle quantity, can be drawn during thin film drainage thin.
Heat exchanger tube of the invention, can be in heat exchanger tube upper area by the quantity of increase by 2 surface boss of fin or wedge angle
The thickness of liquid film being adhered on heat exchange pipe surface fin when gaseous coolant condensation is thinned, while also increasing heat exchange surface area, and
Using at edge spike and feature that boss corner curvature is larger, refrigerant liquid film of making thinner, to enhance heat transfer effect.And it exchanges heat
Pipe lower area is then the smooth fin section 6 without annular knurl processing, can play and reduce the resistance that liquid refrigerants flows in groove body 3
Power, the ability that enhancing liquid refrigerants flows downward.Based on the above design, the whole of heat exchanger tube and case tube heat exchanger complete machine can be improved
Body heat transfer effect.
Secondly, the present invention also provides a kind of heat exchangers.Preferably, which is condenser, and condenser can be sleeping
Formula shell and tube condenser, heat exchanger tube are installed in condenser inner horizontal.After mounting, fin 2 has the area of protrusion to heat exchanger tube
Domain is arranged upward, and smooth fin section 6 is arranged downward.
When condenser working, it can be passed through hot fluid to be added inside heat exchanger tube, be full of gaseous coolant outside heat exchanger tube.Heat exchanger tube
In condensation process, it on the one hand can be strengthened by the protrusion of upper fins 2 when gaseous coolant condensation is thinned and be adhered to heat exchange
Thickness of liquid film on pipe surface fin, while also increasing heat exchange surface area, using at edge spike and boss corner curvature compared with
Greatly, it makes thinner refrigerant liquid film.On the other hand the ability that liquid film of making thinner can be weakened by the smooth fin section 6 in lower part, reduces or goes
Fall the measure strengthened on fin, reduces flow resistance of the liquid refrigerants in groove body 3, the energy that enhancing liquid refrigerants flows downward
Power.Heat exchanger tube in such condenser influences two critical aspects of heat exchange efficiency due to having combined, it is thus possible to improve
Overall heat exchange effect.
In addition, the present invention also provides a kind of air conditioner, including heat exchanger described in above-described embodiment.Due to such heat exchange
Device has higher heat exchange efficiency, thus can also improve the working performance of air conditioner.
A kind of heat exchanger tube provided by the present invention, heat exchanger and air conditioner are described in detail above.It answers herein
With specific embodiment, principle and implementation of the present invention are described, and the explanation of above example is only intended to sides
Assistant solves method and its core concept of the invention.It should be pointed out that for those skilled in the art, not
, can be with several improvements and modifications are made to the present invention under the premise of being detached from the principle of the invention, these improvement and modification are also fallen into
In the protection scope of the claims in the present invention.
Claims (35)
1. a kind of heat exchanger tube, which is characterized in that including tube body (1), circumferentially arranged with fin (2) on the outer wall of the tube body (1),
Protrusion is equipped on the partially circumferentially region of the fin (2), the rest part circumferential zones of the fin (2) are formed smoothly
Fin section (6).
2. heat exchanger tube according to claim 1, which is characterized in that the fin (2) is on the outer wall of the tube body (1)
Helix distribution.
3. heat exchanger tube according to claim 1, which is characterized in that the fin (2) is equipped with the region of protrusion in week
It is upwardly formed the first continuum, the smooth fin section (6) forms the second continuum in the circumferential.
4. heat exchanger tube according to claim 3, which is characterized in that the smooth fin section (6) is circumferential in the tube body (1)
Upper corresponding angular range is less than or equal to 180 °.
5. heat exchanger tube according to claim 1, which is characterized in that in the region on the fin (2) equipped with protrusion
Including protrusion described in multiple groups, protrusion described in multiple groups is provided at circumferentially spaced along the fin (2).
6. heat exchanger tube according to claim 1, which is characterized in that include the first continuum in the circumferential direction of the fin (2)
Domain and the second continuum are equipped with protrusion described in multiple groups in first continuum, and protrusion described in multiple groups is along the wing
Piece (2) are provided at circumferentially spaced, and second continuum is the smooth fin section (6).
7. heat exchanger tube according to claim 1, which is characterized in that the local location of the smooth fin section (6) is equipped with institute
State protrusion.
8. heat exchanger tube according to claim 1, which is characterized in that include the first continuum in the circumferential direction of the fin (2)
Domain and the second continuum, first continuum are along the continuum for being circumferentially with protrusion of the fin (2), institute
Stating the second continuum is the smooth fin section (6), and the local location of the smooth fin section (6) is equipped with the protrusion.
9. according to heat exchanger tube described in claim 3,6 or 8, which is characterized in that the shape that the heat exchanger tube is installed within the condenser
Under state, first continuum is arranged upward, and second continuum is arranged downward.
10. heat exchanger tube according to claim 1, which is characterized in that the free end of the protrusion has sharp portion.
11. heat exchanger tube according to claim 1, which is characterized in that be equipped on the radial height direction of the fin (2)
At least two layers protrusion.
12. heat exchanger tube according to claim 11, which is characterized in that at least two layers protrusion is along the tube body
(1) it is arranged in a staggered manner in circumferential direction.
13. heat exchanger tube according to claim 11, which is characterized in that at least two layers protrusion includes first layer protrusion
Portion (4) and second layer protrusion (5), fin (2) top forms indent (7) by annular knurl, while the two of the indent (7)
It holds to extending on the outside of the fin (2) and forms the first layer protrusion (4), the second layer protrusion (5) is located at described the
The radially inner side of one layer of protrusion (4), the second layer protrusion (5) are formed by annular knurl.
14. heat exchanger tube according to claim 13, which is characterized in that each second layer protrusion (5) is respectively positioned on institute
State the same side of fin (2).
15. heat exchanger tube according to claim 13, which is characterized in that axis of the indent (7) relative to the tube body (1)
Line is obliquely installed.
16. heat exchanger tube according to claim 13, which is characterized in that the first layer on the adjacent fin (2) is convex
Portion (4) mutually stagger setting in the circumferential direction of the tube body (1) out.
17. heat exchanger tube according to claim 13, which is characterized in that end of the indent (7) along length direction
In class triangle, trapezoidal or rectangle；And/or the compressive plane of the second layer protrusion (5) is in class triangle, trapezoidal or rectangle.
18. heat exchanger tube according to claim 1, which is characterized in that the inner wall of the tube body (1) is equipped with spiral helicine convex
It rises screw thread (8).
19. heat exchanger tube according to claim 18, which is characterized in that the raised thread (8) is multiple thread.
20. heat exchanger tube according to claim 18, which is characterized in that the cross section of the raised thread (8) is trapezoidal in class
Or triangular structure.
21. heat exchanger tube according to claim 1, which is characterized in that the fin (2) is integrally disposed upon the tube body (1)
On and/or the protrusion be integrally disposed upon on the fin (2).
22. heat exchanger tube according to claim 21, which is characterized in that in the fin (2) and the protrusion at least
One molding by extrusion.
23. heat exchanger tube according to claim 4, which is characterized in that the smooth fin section (6) is in the tube body (1) week
Proportion range is 1/7~1/2 to upward corresponding angle throughout the circumferential.
24. heat exchanger tube according to claim 1, which is characterized in that form groove body (3) between the adjacent fin (2), institute
State that groove body (3) bottom is smooth, and the junction of groove body (3) bottom and the fin (2) is in rounding off；Or the groove body
(3) bottom is integrally in rounding off.
25. heat exchanger tube according to claim 2, which is characterized in that the fin (2) with perpendicular to the tube body (1) axis
Angle α=0.3 °~3.0 ° between the plane of line.
26. heat exchanger tube according to claim 1, which is characterized in that the thickness h 7=0.1 of the fin (2)~
0.252mm forms the width h8=0.252~0.558mm of groove body (3) between the adjacent fin (2).
27. heat exchanger tube according to claim 13, which is characterized in that the indent (7) is at the top of the fin (2)
Width h2=0.01~the 0.35mm or the first layer protrusion (4) of depth h1=0.1~0.45mm or the indent (7)
Extend length h3=0.05~0.2mm of protrusion to fin (2) side.
28. heat exchanger tube according to claim 15, which is characterized in that indent (7) inclined direction and the fin (2)
Angle β=15 °~65 ° between the extending direction of top.
29. heat exchanger tube according to claim 13, which is characterized in that the second layer protrusion (5) is relative to the wing
The outwardly extending width h4=0.05~0.2mm in piece (2) surface or second layer protrusion (5) bottom and the tube body (1)
Step height h5=0.15~the 0.45mm or the second layer protrusion (5) that root is formed are in the fin (2) circumferential direction
Width h6=0.05~0.32mm.
30. heat exchanger tube according to claim 13, which is characterized in that the pressure being arranged on the fin described in individual pen (2)
Quantity n2=35~100 of slot (7)；Or the second layer protrusion (5) of (2) side of the fin described in individual pen formation
Quantity n3=35~100.
31. heat exchanger tube according to claim 18, which is characterized in that the raised thread (8) is relative to the tube body (1)
Protrusion height h9 of inclination angle alpha 1=15~55 ° or the raised thread (8) of axis on the tube body (1) inner wall
Angle γ=15~65 ° that the section side Shang Liangge of=0.15~0.55mm or the raised thread (8) is formed；Or
The raised thread (8) is multiple thread, and multiple thread is distributed n1=10~80 in the whole circumference of the tube body (1) inner wall
It is a.
32. a kind of heat exchanger, which is characterized in that including any heat exchanger tube of claims 1 to 31.
33. heat exchanger according to claim 32, which is characterized in that the heat exchanger is condenser.
34. heat exchanger according to claim 33, which is characterized in that the region that the fin (2) is equipped with protrusion exists
It is continuum in circumferential direction, after mounting, the fin (2) is arranged the heat exchanger tube upward with the region of protrusion, described
Smooth fin section (6) is arranged downward.
35. a kind of air conditioner, which is characterized in that including any heat exchanger of claim 32~34.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306842.XA CN109900151B (en) | 2017-12-11 | 2017-12-11 | Heat exchange tube, heat exchanger and air conditioner |
| PCT/CN2018/103229 WO2019114325A1 (en) | 2017-12-11 | 2018-08-30 | Heat exchange tube, heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306842.XA CN109900151B (en) | 2017-12-11 | 2017-12-11 | Heat exchange tube, heat exchanger and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109900151A true CN109900151A (en) | 2019-06-18 |
| CN109900151B CN109900151B (en) | 2024-06-25 |
Family
ID=66819923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711306842.XA Active CN109900151B (en) | 2017-12-11 | 2017-12-11 | Heat exchange tube, heat exchanger and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109900151B (en) |
| WO (1) | WO2019114325A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556124A (en) * | 2009-04-10 | 2009-10-14 | 金龙精密铜管集团股份有限公司 | Heat transfer tube |
| US20090260792A1 (en) * | 2008-04-16 | 2009-10-22 | Wolverine Tube, Inc. | Tube with fins having wings |
| CN102032826A (en) * | 2009-09-25 | 2011-04-27 | 苏州乾雄金属材料有限公司 | Finned condensation pipe |
| CN105043154A (en) * | 2015-09-01 | 2015-11-11 | 无锡隆达金属材料有限公司 | Efficient heat-conducting condenser pipe |
| CN207600274U (en) * | 2017-12-11 | 2018-07-10 | 珠海格力电器股份有限公司 | Heat exchange tube, heat exchanger and air conditioner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393068Y (en) * | 1999-05-24 | 2000-08-23 | 上海得灵电器实业有限公司 | Turble heat-conductive pipe |
| CN201096467Y (en) * | 2007-08-23 | 2008-08-06 | 南通江华热动力机械有限公司 | Spoiler for inner fins of radiator |
| CN201514144U (en) * | 2009-09-25 | 2010-06-23 | 苏州乾雄金属材料有限公司 | Fin type condensing tube |
| CN103398618A (en) * | 2013-07-31 | 2013-11-20 | 无锡柯马机械有限公司 | Radiating pipe |
| CN206974261U (en) * | 2017-07-25 | 2018-02-06 | 刘勇 | Fin heat exchange pipe |
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2017
- 2017-12-11 CN CN201711306842.XA patent/CN109900151B/en active Active
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2018
- 2018-08-30 WO PCT/CN2018/103229 patent/WO2019114325A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090260792A1 (en) * | 2008-04-16 | 2009-10-22 | Wolverine Tube, Inc. | Tube with fins having wings |
| CN101556124A (en) * | 2009-04-10 | 2009-10-14 | 金龙精密铜管集团股份有限公司 | Heat transfer tube |
| CN102032826A (en) * | 2009-09-25 | 2011-04-27 | 苏州乾雄金属材料有限公司 | Finned condensation pipe |
| CN105043154A (en) * | 2015-09-01 | 2015-11-11 | 无锡隆达金属材料有限公司 | Efficient heat-conducting condenser pipe |
| CN207600274U (en) * | 2017-12-11 | 2018-07-10 | 珠海格力电器股份有限公司 | Heat exchange tube, heat exchanger and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019114325A1 (en) | 2019-06-20 |
| CN109900151B (en) | 2024-06-25 |
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