CN102748903B - Heat exchanger and flat heat exchange tube thereof - Google Patents

Heat exchanger and flat heat exchange tube thereof Download PDF

Info

Publication number
CN102748903B
CN102748903B CN201210253536.5A CN201210253536A CN102748903B CN 102748903 B CN102748903 B CN 102748903B CN 201210253536 A CN201210253536 A CN 201210253536A CN 102748903 B CN102748903 B CN 102748903B
Authority
CN
China
Prior art keywords
heat exchange
exchange tube
flat heat
sidewall
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201210253536.5A
Other languages
Chinese (zh)
Other versions
CN102748903A (en
Inventor
魏庆奇
陈启
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Sanden Auto Airconditioning Co Ltd
Original Assignee
Tianjin Sanden Auto Airconditioning Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Sanden Auto Airconditioning Co Ltd filed Critical Tianjin Sanden Auto Airconditioning Co Ltd
Publication of CN102748903A publication Critical patent/CN102748903A/en
Application granted granted Critical
Publication of CN102748903B publication Critical patent/CN102748903B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A kind of heat exchanger and flat heat exchange tube thereof, relate to the flat pipe structure of fine channel heat exchanger, this case is the divisional application of " flat pipe structure of 200910070901.7 heat exchangers and heat exchanger thereof ".Wherein: between adjacency channel, dividing plate is set; Every two adjacent dividing plates formed a triangular duct etc. lumbar region portion; These two adjacent dividing plates form triangular duct in conjunction with the first side wall of flat heat exchange tube or the second sidewall; Two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure configuration of parallelogram.There is the heat exchanger of flat pipe structure, wherein: portion of shutter district by by predetermined number, be uniformly configured in windowing in straight section portion and form, structure of respectively windowing is identical, and be all set window in face of air-flow direction, formed and hold the structure of air along the downward-sloping flowing of air-flow direction, this is windowed and can make air along air-flow direction along downward-sloping flowing of windowing.This case, by improving flat tube passage, effectively improves the heat transfer efficiency of heat exchanger; Make condensate draining smooth and easy by improving wing band structure again, not-easy-to-freeze, effectively improve heat exchanger efficiency further.

Description

Heat exchanger and flat heat exchange tube thereof
Technical field
The invention belongs to field of air conditioning, relate to the flat pipe structure of fine channel heat exchanger, be applicable to the evaporimeter of domestic air conditioning, business air conditioner, central air-conditioning.This case is the divisional application of " flat pipe structure of 200910070901.7 heat exchangers and heat exchanger thereof ".
Background technology
Transient flow zone problem in the cooling that the engineering background of microscale heat transfer problem comes from the high-density electronic device eighties and the microelectromechanical systems that occurs the nineties.Its feature is, after the yardstick miniaturization of room and time, has occurred a lot of physical phenomenon different under conventional yardstick.Microchannel heat sink be industry always in the technology of research application, have report to point out: as far back as the eighties scientists just propose the concept of " microchannel heat sink ", along with the progress of technology, micro-channel is pursued by industry for air-conditioner heat exchanger.
As published Chinese patent 200410003217.4 1 kinds of heat exchangers, it comprises for receiving the first and second headers with refrigerant emission, and the first and second headers are spaced from each other preset distance; Multiple flat tube, each flat tube has the opposite end be connected with the first and second headers respectively, and each flat tube all has makes cold-producing medium disperse and the passage flowed, and passage has different capacity mutually; And cooling-part, for distributing the heat of the cold-producing medium along flat tube flowing.
And for example published Chinese patent 200610164578.6 1 kinds of heat exchangers, the condensed water that this heat exchanger produces when using as gas cooler can flow down swimmingly, thus can suppress the phenomenon that the flowing resistance of gas significantly increases.Wherein, flat heat-transfer pipe is configured to biserial sandwich construction, is inclined to set relative to the main flow direction of gas, and the adjacent heat-transfer pipe in two row staggers mutually.On the surface of the fin between Dual Flat shape heat-transfer pipe, be provided with in the coconnected draining face of vertical direction.Like this, the condensed water that the surface of fin produces can first flow on the upper surface of described flat heat-transfer pipe, and the inclined plane then along described flat heat-transfer pipe flows down, thereafter again along under the coconnected draining surface current of vertical direction.Therefore, condensed water can not stop, and flowing resistance can not be made to have too large increase.
For another example published Chinese patent 200910037621.6 applies for the heat exchanger of a kind of special-shaped microchannel and exterior corrugated fin integration molding, comprises groups of fins, upper cover plate, lower cover, side plate, air inlet and gas outlet; Groups of fins is formed by connecting side by side by multiple fin, and fin is that sheet material both sides are provided with corrugated fin, and middle part is multiple special-shaped microchannel structures, corrugated fin and sheet material one-body molded; Upper cover plate and lower cover are respectively equipped with the groove placing fin, and the adjacent two groove intervals of upper cover plate and lower cover are connected, and make refrigerant flow through multiple fin successively; Special-shaped microchannel is the square duct of length of side 0.8-1MM.The present invention utilizes micro channel technology, overall outer fin technology and without the need to welding refrigerant high pressure Sealing Technology, is applicable to carbon dioxide refrigerating system, efficiently solves the problem of its system high pressure operation.This invention adopts full aluminium composite material.
The flat pipe structure of known techniques, flat tube all has makes cold-producing medium disperse and the passage flowed, and the cross section that this passage has is rectangle, very easily produces eddy current (particularly when making evaporimeter and using), so heat exchanging is unfavorable thus four right angle; Some channel cross-sections are circular or oval, and problem is that such passage does not arrange much in flat tube, and passage is few, constrain the exchange capability of heat improving heat exchanger further.
Industry is urgently a kind of to be used on an evaporator, has more reasonably coolant channel structure, thus can improve the heat exchange efficiency of parallel-flow evaporator greatly.
Summary of the invention
Problem to be solved by this invention is the above-mentioned defect overcoming aforementioned techniques existence, and a kind of structure configuration passing through more reasonably triangular duct is provided, more multichannel can be arranged, the most broadside of each passage can be kept exactly to be seated on the sidewall of flat heat exchange tube again, thus improve heat transfer efficiency; Can effectively avoid producing eddy current; Technique also can be made more to simplify, and frock is flat pipes of heat exchanger structure and heat exchanger thereof more easily.
Further, by the more appropriate design of windowing, condensed water effectively can be forced oliquely downward can only to move along air-flow direction along plate of windowing, realize smooth and easy draining, effectively avoid the object of airframe icing.
Technical solution problem of the present invention is taked following technical scheme to realize, according to a kind of heat exchanger provided by the invention, comprise multiple flat heat exchange tube between two collector tubes of the first collector tube, the second collector tube and device and the wing band of device between flat heat exchange tube, wherein: described wing band is the fluxion structure with portion of crest district, straight section portion, portion of trough district; The straight section portion of described wing band arranges to window and forms shutter district cage structure, this portion of shutter district by by predetermined number, be uniformly configured in windowing in straight section portion and form, structure of respectively windowing is identical, described wing band wherein: described in window to arrange to be and set window in face of air-flow direction, formed and hold air along the structure of the downward-sloping flowing of air-flow direction; This is windowed and can make air along air-flow direction along downward-sloping flowing of windowing; Two adjacent preset pitch of windowing of windowing are set to 1 ~ 2mm; The first spacing between portion of Liang Ge neighboring louver district is set to 1 ~ 2mm; This louver angle can be set to 28-36 degree;
Arrange in described flat heat exchange tube hold cold-producing medium circulation passage, described flat heat exchange tube wherein: between adjacency channel, dividing plate is set; Every two adjacent dividing plates formed a triangular duct etc. lumbar region portion; The 3rd limit between this adjacent separator is the sidewall of flat heat exchange tube, has both formed two adjacent dividing plates and has formed triangular duct structure in conjunction with the sidewall of flat heat exchange tube; Two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure configuration of parallelogram;
Aforesaid heat exchanger, wherein: the triangular duct base angle between the dividing plate of the triangular duct of described flat heat exchange tube and sidewall is set to 50-55 degree or 55-60 degree or 50 < a < 60 degree;
Thus, two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure of parallelogram, with this again in conjunction with the reasonable disposition of triangular duct base angle angle, arrange thus the most broadside of each passage can be kept exactly to be seated in flat heat exchange tube the first side wall or the second sidewall on, construct with this and can obtain more efficient heat transfer efficiency;
Also have, the window of windowing sets design, can effectively force condensed water oliquely downward can only move along air-flow direction along plate of windowing, be easy to direct discharge, condensed water can not upwards flow again, achieve smooth and easy draining, the object of easily freezing when effectively avoiding body to run under the environment that outdoor temperature is lower.
This case technical solution problem can also take following technical scheme to realize further:
Aforesaid heat exchanger, wherein: described louver angle is set to 28-36 degree; Described windowing is made up of window plate and this ventilation window formed between plate and this straight section portion substrate of windowing, and described windowing between plate and this straight section portion substrate forms default louver angle, and each plate of windowing is all downward-sloping along air-flow direction.
Aforesaid heat exchanger, wherein: described flat heat exchange tube is except most prepass and most end passage, and any cross section of each passage is isosceles triangle or equilateral triangle.
Aforesaid heat exchanger, wherein: by circular sliding slopes between three arms of angle of described triangular duct and three arms of angle, namely there is connection arc between adjacent separator, have between dividing plate and a sidewall of flat heat exchange tube and be connected arc, have between dividing plate and another sidewall of flat heat exchange tube and be connected arc.
Aforesaid heat exchanger, wherein: the tube wall of described flat heat exchange tube is made up of the first side wall be parallel to each other, the second sidewall and the first circular arc sidewall that connects with the ora terminalis of the first side wall, the second sidewall, the second circular arc sidewall that is symmetrical with this first circular arc sidewall, that connect with another ora terminalis of the first side wall, the second sidewall; The triangular duct of described flat heat exchange tube is compressing by flat heat exchange tube one.
Aforesaid heat exchanger, wherein: leave the first spacing between portion of described Chi Dai shutter district and portion of neighboring louver district, this first spacing forms portion of crest district and the portion of trough district of described wing band, and windowing of portion of described shutter district is compressing by wing band sheet material one.
Aforesaid heat exchanger, wherein: described louver angle be set to 30 degree or 31 degree or 32 degree any one; Adjacent window between the first spacing between preset pitch with portion of neighboring louver district of windowing arrange identical; Described flat heat exchange tube triangular duct base angle be 50 degree or 55 degree any one; Be parallel to each other between each flat heat exchange tube, and spaced identical predeterminable range.
Technical solution problem of the present invention is taked following technical scheme to realize, according to a kind of flat heat exchange tube for aforementioned arbitrary heat exchanger provided by the invention, wherein: in described flat heat exchange tube, arrange the passage holding flow of refrigerant fortune, described flat heat exchange tube wherein: arrange dividing plate between adjacency channel; Every two adjacent dividing plates formed a triangular duct etc. lumbar region portion; The 3rd limit between this adjacent separator is the sidewall of flat heat exchange tube, has both formed two adjacent dividing plates and has formed triangular duct structure in conjunction with the sidewall of flat heat exchange tube; Two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure configuration of parallelogram; Triangular duct base angle between the dividing plate of the triangular duct of described flat heat exchange tube and sidewall is set to 50-55 degree or 55-60 degree or 50 < a < 60 degree.
Two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure of parallelogram, with this again in conjunction with the reasonable disposition of triangular duct base angle angle, arrange thus the most broadside of each passage can be kept exactly to be seated in flat heat exchange tube the first side wall or the second sidewall on, construct with this and can obtain more efficient heat transfer efficiency;
This case technical solution problem can also take following technical scheme to realize further:
Aforesaid flat heat exchange tube, wherein: have between adjacent separator in described triangular duct and connect arc formation connection arc position, have between dividing plate and a sidewall of flat heat exchange tube and be connected arc and formed and connect arc position, have between dividing plate and another sidewall of flat heat exchange tube and be connected arc and formed and connect arc position; The tube wall of described flat heat exchange tube is made up of the first side wall be parallel to each other, the second sidewall and the first circular arc sidewall that connects with the ora terminalis of the first side wall, the second sidewall, the second circular arc sidewall that is symmetrical with this first circular arc sidewall, that connect with another ora terminalis of the first side wall, the second sidewall.
Not only triangular duct defines the structure that drift angle is circular arc thus; The first side wall, the first circular arc sidewall, the second sidewall, the second circular arc sidewall are connected the closed tube wall forming flat heat exchange tube successively, and the two ends passage of flat tube also has circular arc sidewall structure thus.The design of each connection arc and circular arc sidewall can make the two ends passage of triangular duct and flat tube all not have wedge angle region portion, can effectively avoid producing eddy current, makes heat transfer effect better;
Aforesaid flat heat exchange tube, wherein: described flat heat exchange tube is except most prepass and most end passage, and any cross section of each passage is isosceles triangle or equilateral triangle;
Aforesaid flat heat exchange tube, wherein: described flat heat exchange tube triangular duct base angle be 50 degree or 55 degree any one;
Aforesaid flat heat exchange tube, wherein: be parallel to each other between each flat heat exchange tube, and spaced identical predeterminable range;
Aforesaid flat heat exchange tube, wherein: the triangular duct of described flat heat exchange tube is compressing by flat heat exchange tube one; The two ends of described flat heat exchange tube are provided with frock reducing.
Thus, be parallel to each other between each flat heat exchange tube, and spaced identical predeterminable range, the two ends of described flat heat exchange tube are provided with frock reducing, insert to coordinate more tight in collector tube to make flat heat exchange tube, and technique can be made more to simplify, and frock is more convenient;
Technical solution problem of the present invention is taked following technical scheme to realize, and according to the flat pipe structure of a kind of heat exchanger provided by the invention, arranges the passage of multiple appearance cold-producing medium circulation in described flat heat exchange tube; Wherein: between adjacency channel, dividing plate is set; Every two adjacent dividing plates formed a triangular duct etc. lumbar region portion; These two adjacent dividing plates form triangular duct in conjunction with the first side wall of flat heat exchange tube or the second sidewall; Two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure configuration of parallelogram.
This case technical solution problem can also take following technical scheme to realize further:
The flat pipe structure of aforesaid heat exchanger, wherein: the triangular duct base angle between the dividing plate of the triangular duct of described flat heat exchange tube and the first side wall or the second sidewall is set to 50-60 degree.
The flat pipe structure of aforesaid heat exchanger, wherein: described flat heat exchange tube is except most prepass and most end passage, and any cross section of each passage is isosceles triangle or equilateral triangle.
The flat pipe structure of aforesaid heat exchanger, wherein said flat heat exchange tube triangular duct base angle is 50 degree or 55 degree.
The flat pipe structure of aforesaid heat exchanger, wherein: by circular sliding slopes between three arms of angle of described triangular duct and three arms of angle, namely there is connection arc between adjacent separator, have between dividing plate and a sidewall of flat heat exchange tube and be connected arc, have between dividing plate and another sidewall of flat heat exchange tube and be connected arc.
For the first triangular duct, the first dividing plate with have first between second partition and be connected arc, have second between the first dividing plate and the second sidewall of flat heat exchange tube and be connected arc, have the 3rd between second partition and the second sidewall of flat heat exchange tube and be connected arc; Each connection arc can make triangular duct not have wedge angle region portion, not easily produces eddy current, makes channel for heat exchange better effects if;
The flat pipe structure of aforesaid heat exchanger, wherein: the tube wall of described flat heat exchange tube is by the first side wall be parallel to each other, the second sidewall and the first circular arc sidewall that connects with the ora terminalis of the first side wall, the second sidewall, symmetrical with this first circular arc sidewall, the the second circular arc sidewall connected with another ora terminalis of the first side wall, the second sidewall forms, and the first side wall, the first circular arc sidewall, the second sidewall, the second circular arc sidewall are connected the closed tube wall forming flat heat exchange tube successively thus; The two ends of described flat heat exchange tube are provided with frock reducing, insert in collector tube to make flat heat exchange tube coordinate more tight; The triangular duct of described flat heat exchange tube is compressing by flat heat exchange tube one.
There is the heat exchanger of any one flat pipe structure aforementioned, comprise the first collector tube, the second collector tube and device between these two collector tubes, hold multiple flat heat exchange tube of passing through of cold-producing medium and device between flat heat exchange tube, for the wing band of shed heat, wherein: described wing band make there is portion of crest district, fluxion structure that straight section portion, portion of trough district are formed continuously; Each straight section portion of described wing band all arranges the formation shutter district cage structure of windowing for ventilating, this portion of shutter district by by predetermined number, be uniformly configured in windowing in straight section portion and form, structure of respectively windowing is identical, and be all set window in face of air-flow direction, formed and hold the structure of air along the downward-sloping flowing of air-flow direction, this is windowed and can make air along air-flow direction along downward-sloping flowing of windowing.
Aforesaid heat exchanger, wherein: described in window and to be made up of window plate and this ventilation window formed between plate and this straight section portion substrate of windowing, described windowing between plate and this straight section portion substrate forms default louver angle, and each plate of windowing is all downward-sloping along air-flow direction; This louver angle can be set to 28-36 degree.
Aforesaid heat exchanger, wherein: between portion of described Chi Dai shutter district and portion of neighboring louver district, leave the first spacing, also known as wing belt distance, described first spacing forms portion of crest district and the portion of trough district of described wing band, and windowing of portion of described shutter district is compressing by wing band sheet material one.
Aforesaid heat exchangers, wherein: described louver angle be set to 30 degree or 31 degree or 32 degree any one; Two adjacent preset pitch of windowing of windowing are set to 1 ~ 2mm; The first spacing between portion of Liang Ge neighboring louver district is set to 1 ~ 2mm; Adjacent window between the first spacing between preset pitch with portion of neighboring louver district of windowing arrange identical; Be parallel to each other between each flat heat exchange tube, and spaced identical predeterminable range.
The present invention compared with prior art has significant advantage and beneficial effect.
From above technical scheme, the present invention, under the structural allocation of excellence, has following advantage at least:
The triangular duct structure of the ingenious setting of flat pipe structure of this case heat exchanger, on the first side wall that the most broadside achieving each passage is exactly seated in flat heat exchange tube or the second sidewall, the reasonability substantially increasing passage configuration in flat tube is constructed with this, more passage can be arranged, obtain more efficient heat transfer efficiency; The meticulous preparation of the angle setting at passage base angle and each connection arc of triangular duct, effectively can avoid the phenomenon of passage eddy current, makes heat transfer effect better, thus improves heat exchange efficiency further; The wing band structure of this case heat exchanger rationally, is cleverly configured to windowing of portion of shutter district to hold air along the structure of the downward-sloping flowing of air-flow direction, condensate draining can be made thus smooth and easy, not-easy-to-freeze, effectively can improve heat exchanger efficiency; The reasonable setting of this case fenestration, comprise that louver angle is arranged, the reasonable disposition of the first spacing between preset pitch and portion of neighboring louver district of windowing, the heat exchanger efficiency of heat exchanger can be made better, with air-conditioning equipment widely such as this heat exchanger configuration heat pump, evaporimeter etc., industry will be become better select, cover each field being applied to air-conditioning with this case, industry promotional value is wide.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 is this case heat exchanger overall structure schematic diagram;
Fig. 1 a is the side-looking face structural representation of Fig. 1;
Fig. 2 is the D-D sectional plane organigram of Fig. 1;
Fig. 3 is this case flat tube overall structure schematic diagram;
Fig. 3 a is the A-A sectional plane structure enlarged diagram of Fig. 3;
Fig. 3 b is the close-up schematic view of passage in Fig. 3 a;
Fig. 4 is the local structure enlarged diagram of this case flat tube triangular duct and wing band;
Fig. 4 a is the partial enlargement organigram of known technology flat tube rectangular channel and wing band;
Fig. 5 is passage base angle a and the coefficient of heat transfer graph of a relation of this case flat tube;
Fig. 6 is the wing band fragment structure schematic diagram with shutter in this case;
Fig. 6 a is Fig. 6 A-A sectional plane organigram;
Fig. 7 is the graph of a relation of this case louver angle and the coefficient of heat transfer and flowing resistance;
Fig. 8 is the graph of a relation of this case louver angle and unit liquid stream weight.
Detailed description of the invention
Below in conjunction with preferred embodiment, to according to detailed description of the invention provided by the invention, feature and effect thereof, be described in detail as follows; In order to simple and clearly object, the hereafter appropriate description eliminating known technology, in order to avoid the description of those unnecessary details impact to the technical program.
Shown in Fig. 1-8, the flat pipe structure of heat exchanger and a heat exchanger thereof, comprise the first collector tube 1, second collector tube 2 and device between these two collector tubes, hold multiple flat heat exchange tube 3 and device that cold-producing medium passes through between flat heat exchange tube, for the wing band 4 of shed heat;
Be parallel to each other between each flat heat exchange tube 3, and spaced identical predeterminable range, the two ends of described flat heat exchange tube are provided with frock reducing 311, insert to make flat heat exchange tube coordinate in collector tube more tight;
In described flat heat exchange tube side by side multiple passage 30, first collector tube and the second collector tube whereby this passage be interconnected, cold-producing medium flows into another collector tube by described passage from a collector tube;
The tube wall 31 of described flat heat exchange tube is made up of the first side wall 31a be parallel to each other, the second sidewall 31b and the first circular arc sidewall 31c that connects with the ora terminalis of the first side wall 31a, the second sidewall 31b, the second circular arc sidewall 31d that is symmetrical with this first circular arc sidewall 31c, that connect with another ora terminalis of the first side wall 31a, the second sidewall 31b, and the first side wall 31a, the first circular arc sidewall 31c, the second sidewall 31b, the second circular arc sidewall 31d are connected the closed tube wall 31 forming flat heat exchange tube successively thus;
Except most prepass 301 and most end passage 30n, any cross section of each passage is isosceles triangle or equilateral triangle; Arrange between adjacency channel dividing plate 321,322 ... 32n; Every two adjacent dividing plates 321,322 formed a triangular duct etc. lumbar region portion, by that analogy;
First dividing plate 321 and second partition 322 form the first triangular duct 302 in conjunction with the second sidewall 31b (or the first side wall 31a) of flat heat exchange tube; Second partition 322 and the 3rd dividing plate 323 form the second triangular duct 303 in conjunction with the first side wall 31a (or second sidewall 31b) of flat heat exchange tube, by that analogy;
Two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure configuration of parallelogram, by that analogy; On the first side wall 31a that the most broadside of each passage can be kept exactly to be seated in flat heat exchange tube with this or the second sidewall 31b, construct with this and can obtain more efficient heat transfer efficiency;
By circular sliding slopes between three arms of angle of described triangular duct and three arms of angle, for the first triangular duct 302, first dividing plate 321 with have first between second partition 322 and be connected arc 3212, have second between first dividing plate 321 and the second sidewall 31b of flat heat exchange tube and be connected arc 321b, have the 3rd between second partition 322 and the second sidewall 31b of flat heat exchange tube and be connected arc 322b; Each connection arc can make triangular duct not have wedge angle region portion, not easily produces eddy current, makes heat transfer effect better;
Triangular duct base angle a, a between the dividing plate of the triangular duct of described flat heat exchange tube and sidewall (the first side wall 31a or the second sidewall 31b) ' be set to 50-60 degree;
The triangular duct of described flat heat exchange tube is compressing by flat heat exchange tube one;
Illustrate with evaporimeter, the heat exchanger tube of evaporimeter mainly embodies heat exchange efficiency when cold-producing medium seethes with excitement, shown in Fig. 4 and Fig. 4 a, drift angle place in passage represents gaseous refrigerant, middle and wall represents liquid refrigerant, in triangle access opening, there are three drift angle places to be that gaseous refrigerant takies, in rectangular channel hole, there are four drift angle places to be that gaseous refrigerant takies, the larger heat exchanging of ratio shared by the gaseous state of cold-producing medium is more unfavorable, three corner channels can effectively reduce the gaseous state ratio of cold-producing medium as can be seen here, can realize the object improving heat transfer effect thus;
Angle and the coefficient of heat transfer relation at the triangular duct base angle of flat tube shown in Figure 5 are known, and the angle at passage base angle is set to 50-60 degree, by coefficient of heat transfer variation tendency in figure, illustrate that this scope is all the selection that can obtain good heat exchange efficiency;
And triangular duct base angle selection 50 degree, 55 degree will obtain better heat exchange efficiency;
Described wing band 4 is made has portion of crest district 41, straight section portion 43, the continuous fluxion structure formed in portion of trough district 42; 4311 portions of formation shutter district 431 of windowing that each straight section portion of described wing band is all arranged for ventilating construct, as shown in Figure 6;
As shown in Figure 6, the portion of shutter district 431 of described wing band can by by predetermined number, be uniformly configured in windowing in straight section portion 43 and 4311 form, structure of respectively windowing is identical, and be all set window in face of air-flow direction, formed and hold the structure of air along the downward-sloping flowing of air-flow direction, namely this is windowed and can make air along air-flow direction along downward-sloping flowing of windowing.
Further,
The first spacing tt is left between portion of described Chi Dai shutter district 431 and portion of neighboring louver district, also known as wing belt distance, described first spacing tt forms portion of crest district 41 and the portion of trough district 42 of described wing band, can form the corrugated wing band structure of continuous print in conjunction with portion of aforesaid Chi Dai shutter district 431;
Described windowing 4311 is made up of window plate 43111 and this ventilation window 43112 formed between plate and this straight section portion substrate 4310 of windowing, and windows and can be offered by general technology, do not repeat them here; Described windowing between plate and this straight section portion substrate forms default louver angle A, and each plate of windowing is all downward-sloping along air-flow direction; This louver angle can be set to 28-36 degree;
Further, louver angle can be set to 30 ~ 32 degree, and heat exchange efficiency is higher thus, is more conducive to condensed water and is discharged rapidly;
Known by the relation of louver angle shown in Fig. 7 and the coefficient of heat transfer and flowing resistance, louver angle is set to 28-36 degree, by coefficient of heat transfer variation tendency in figure and flowing resistance variation tendency, illustrate that this scope is all the selection that can obtain good heat exchange efficiency; And louver angle selection 30 degree, 31 degree, 32 degree will obtain better heat exchange efficiency;
Fig. 8 is situation shutter having liquid stream, known by the relation of the louver angle of this case shown in Fig. 6 and unit liquid stream weight, louver angle is set to 28-36 degree, be attached to the weight change trend of windowing on plate by liquid stream in figure, illustrate that this scope can obtain the good effect of draining condensed water as quickly as possible; And louver angle selection 30 degree, 31 degree, 32 degree will obtain better drainage effect;
Angle the best of windowing between 30 degree of-32 degree can force condensed water oliquely downward can only move along air-flow direction along plate of windowing so effectively, be easy to direct discharge, condensed water can not upwards flow again, so draining is smooth and easy, the problem of easily freezing when can effectively avoid body to run under the environment that outdoor temperature is lower, expands in heat pump and indoor evaporator for making the range of application of heat exchanger and provides guarantee;
Further, arrange two adjacent window 4311 distance be called that the preset pitch fp that windows is set to 1 ~ 2mm;
The first spacing tt between portion of Liang Ge neighboring louver district is set to 1 ~ 2mm;
Adjacent window between the first spacing tt between preset pitch fp with portion of neighboring louver district that windows identical, or have small either large or small default gap;
Windowing of portion of described shutter district is compressing by wing band sheet material one;
Form the corrugated wing band with shutter structure thus, to increase heat exchange area, the combination property proportioning according to above-mentioned configuration heat exchange efficiency, body weight is more optimized; After whole parts assembled formations of described heat exchanger, put into soldering oven welding fabrication.The wing band structure of this case heat exchanger, can impel very fast the excreting out of the condensed water of heat exchanger surface effectively, prevents heat exchange surface generation of icing phenomenon because condensate draining is not smooth, thus greatly improves heat exchange efficiency.
This case also proposes a kind of heat exchanger with above-mentioned flat tube and wing band structure.
This case heat exchanger is the important improvement to prior art, particularly the structure of windowing of flat pipes of micro-channel heat exchangers channels configuration that industry knows and wing band is changed in this case, the heat exchanger obtained by this case flat tube and wing band structure, the scope of application extends to heat pump, evaporimeter etc., the wing band constructed thus and heat exchanger thereof can as the wildcard of heat pump, evaporimeter, general heat exchange elements, with the alternative known air-conditioner fin copper pipe type heat exchanger that this heat exchanger can be wider, the cost of further saving air-conditioning, alleviate the weight of air-conditioner, reduce production cost further; This case is skillfully constructed, structure simple, applies especially with industry.
After the preferred embodiment described in detail, being familiar with this technology personage can clearly understand, and do not departing under following claim and spirit and can carry out various change and amendment, and the present invention is not also limited to the embodiment of illustrated embodiment in description.

Claims (11)

1. a heat exchanger, comprise multiple flat heat exchange tube (3) between two collector tubes of the first collector tube (1), the second collector tube (2) and device and the wing band (4) of device between flat heat exchange tube, wherein: described wing band (4) is for having the fluxion structure of portion of crest district (41), straight section portion (43), portion of trough district (42); The straight section portion of described wing band arranges window (4311) and forms portion of shutter district (431) structure, this portion of shutter district by by predetermined number, be uniformly configured in windowing in straight section portion and form, structure of respectively windowing is identical, described wing band wherein: described in window and be set to set window in face of air-flow direction, formed and hold air along the structure of the downward-sloping flowing of air-flow direction; Two adjacent preset pitch of windowing of windowing are set to 1 ~ 2mm; The first spacing between portion of Liang Ge neighboring louver district is set to 1 ~ 2mm; This louver angle is set to 28-36 degree;
The passage (30) holding cold-producing medium circulation is set in described flat heat exchange tube (3), described flat heat exchange tube wherein: dividing plate (321,322 ... 32n) is set between adjacency channel; Every two adjacent dividing plates (321,322) formed a triangular duct etc. lumbar region portion; The 3rd limit between this adjacent separator is the sidewall of flat heat exchange tube, forms triangular duct structure; Two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure configuration of parallelogram; Triangular duct base angle between the dividing plate of the triangular duct of described flat heat exchange tube and sidewall is set to 50-55 degree or 55-60 degree or 50 < a < 60 degree;
Described window (4311) are made up of plate of windowing (43111) and this ventilation window (43112) formed between plate and this straight section portion substrate (4310) of windowing, described windowing between plate and this straight section portion substrate forms default louver angle, and each plate of windowing is all downward-sloping along air-flow direction.
2. heat exchanger as claimed in claim 1, is characterized in that: described flat heat exchange tube is except most prepass (301) and most end passage (30n), and any cross section of each passage is isosceles triangle.
3. heat exchanger as claimed in claim 2, it is characterized in that: by circular sliding slopes between three arms of angle of described triangular duct and three arms of angle, namely there is connection arc between adjacent separator, have between dividing plate and a sidewall of flat heat exchange tube and be connected arc, have between dividing plate and another sidewall of flat heat exchange tube and be connected arc.
4. heat exchanger as claimed in claim 3, is characterized in that: the tube wall (31) of described flat heat exchange tube is made up of the first side wall be parallel to each other (31a), the second sidewall (31b) and the first circular arc sidewall (31c) that connects with the ora terminalis of the first side wall (31a), the second sidewall (31b), the second circular arc sidewall (31d) that is symmetrical with this first circular arc sidewall (31c), that connect with another ora terminalis of the first side wall (31a), the second sidewall (31b); The triangular duct of described flat heat exchange tube is compressing by flat heat exchange tube one.
5. heat exchanger as claimed in claim 4, it is characterized in that: between portion of described Chi Dai shutter district (431) and portion of neighboring louver district, leave the first spacing, this first spacing forms portion of crest district and the portion of trough district of described wing band, and windowing of portion of described shutter district is compressing by wing band sheet material one.
6. heat exchanger as claimed in claim 5, is characterized in that: described louver angle be set to 30 degree or 31 degree or 32 degree any one; Adjacent window between the first spacing between preset pitch with portion of neighboring louver district of windowing arrange identical; Described flat heat exchange tube triangular duct base angle be 50 degree or 55 degree any one; Be parallel to each other between each flat heat exchange tube, and spaced identical predeterminable range.
7. heat exchanger as claimed in claim 6, is characterized in that: the triangular duct of described flat heat exchange tube is compressing by flat heat exchange tube one; The two ends of described flat heat exchange tube are provided with frock reducing (311).
8. the flat heat exchange tube for aforementioned arbitrary heat exchanger, wherein: in described flat heat exchange tube (3), arrange the passage (30) holding cold-producing medium circulation, described flat heat exchange tube wherein: arrange dividing plate (321,322 ... 32n) between adjacency channel; Every two adjacent dividing plates (321,322) formed a triangular duct etc. lumbar region portion; The 3rd limit between this adjacent separator is the sidewall of flat heat exchange tube, forms triangular duct structure; Two adjacent triangular ducts become to be mutually symmetrical, to be formed the structure configuration of parallelogram; Triangular duct base angle between the dividing plate of the triangular duct of described flat heat exchange tube and sidewall is set to 50-55 degree or 55-60 degree or 50 < a < 60 degree.
9. flat heat exchange tube as claimed in claim 8, it is characterized in that: have between adjacent separator in described triangular duct and connect arc formation connection arc position, have between dividing plate and a sidewall of flat heat exchange tube and be connected arc and formed and connect arc position, have between dividing plate and another sidewall of flat heat exchange tube and be connected arc and formed and connect arc position; The tube wall (31) of described flat heat exchange tube is made up of the first side wall be parallel to each other (31a), the second sidewall (31b) and the first circular arc sidewall (31c) that connects with the ora terminalis of the first side wall (31a), the second sidewall (31b), the second circular arc sidewall (31d) that is symmetrical with this first circular arc sidewall (31c), that connect with another ora terminalis of the first side wall (31a), the second sidewall (31b).
10. flat heat exchange tube as claimed in claim 9, is characterized in that: described flat heat exchange tube is except most prepass (301) and most end passage (30n), and any cross section of each passage is isosceles triangle; Described flat heat exchange tube triangular duct base angle be 50 degree or 55 degree any one.
11. flat heat exchange tube as claimed in claim 10, is characterized in that: be parallel to each other between each flat heat exchange tube, and spaced identical predeterminable range; The triangular duct of described flat heat exchange tube is compressing by flat heat exchange tube one; The two ends of described flat heat exchange tube are provided with frock reducing (311).
CN201210253536.5A 2009-10-22 2009-10-22 Heat exchanger and flat heat exchange tube thereof Active CN102748903B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910070901A CN101713617A (en) 2009-10-22 2009-10-22 Flat pipe structure of heat exchanger and heat exchanger thereof

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN200910070901A Division CN101713617A (en) 2009-10-22 2009-10-22 Flat pipe structure of heat exchanger and heat exchanger thereof

Publications (2)

Publication Number Publication Date
CN102748903A CN102748903A (en) 2012-10-24
CN102748903B true CN102748903B (en) 2015-11-25

Family

ID=42417458

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201210253536.5A Active CN102748903B (en) 2009-10-22 2009-10-22 Heat exchanger and flat heat exchange tube thereof
CN200910070901A Pending CN101713617A (en) 2009-10-22 2009-10-22 Flat pipe structure of heat exchanger and heat exchanger thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN200910070901A Pending CN101713617A (en) 2009-10-22 2009-10-22 Flat pipe structure of heat exchanger and heat exchanger thereof

Country Status (1)

Country Link
CN (2) CN102748903B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142082A (en) * 2014-05-06 2014-11-12 北京理工大学 Heat transfer component with double-triangle channels and without thermal contact resistance
CN104296563B (en) * 2014-10-22 2016-03-09 无锡宏盛换热器制造股份有限公司 Flat pipe type cold-producing medium core
CN105241291A (en) * 2015-10-16 2016-01-13 平湖迈柯罗新材料有限公司 Improved flat pipe for automotive air conditioner condenser
JP2017155969A (en) * 2016-02-29 2017-09-07 株式会社ケーヒン・サーマル・テクノロジー Evaporator with cold storage function
CN107388873A (en) * 2017-06-13 2017-11-24 苏州吉利不锈钢制品有限公司 A kind of pipe for radiator road structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1523317A (en) * 2003-02-20 2004-08-25 松下电器产业株式会社 Outdoor heat exchanger for heat pump
CN1967135A (en) * 2006-04-21 2007-05-23 王磊 Aluminium-made extrusion slender section
CN2932273Y (en) * 2006-04-21 2007-08-08 王磊 A cold and heat exchanger
CN201318897Y (en) * 2008-11-17 2009-09-30 新乡天禄工业有限公司 Multi-channel aluminum flat tube for air conditioners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1523317A (en) * 2003-02-20 2004-08-25 松下电器产业株式会社 Outdoor heat exchanger for heat pump
CN1967135A (en) * 2006-04-21 2007-05-23 王磊 Aluminium-made extrusion slender section
CN2932273Y (en) * 2006-04-21 2007-08-08 王磊 A cold and heat exchanger
CN201318897Y (en) * 2008-11-17 2009-09-30 新乡天禄工业有限公司 Multi-channel aluminum flat tube for air conditioners

Also Published As

Publication number Publication date
CN101713617A (en) 2010-05-26
CN102748903A (en) 2012-10-24

Similar Documents

Publication Publication Date Title
US20130220584A1 (en) Heat exchanger, and all-in-one air conditioner equipped therewith
CN102748903B (en) Heat exchanger and flat heat exchange tube thereof
EP3156752B1 (en) Heat exchanger
WO2015004720A1 (en) Heat exchanger, and air conditioner
KR20180077171A (en) Aluminum extruded flat pore and heat exchanger
JP5079857B2 (en) Air conditioner indoor unit
CN101776357B (en) Heat exchanger
KR20120044848A (en) Heat exchanger and micro-channel tube for the same
CN101694360B (en) Parallel flow heat exchanger and wing band structure thereof
CN203249530U (en) Microchannel flat tube and heat exchanger with same
CN102748977A (en) Flat heat exchange tube of heat exchanger and heat exchanger of flat heat exchange tube
US20220205736A1 (en) Microchannel flat tube and microchannel heat exchanger
JP5404571B2 (en) Heat exchanger and equipment
CN101696861B (en) Heat exchanger and wing band structure thereof
CN211925909U (en) Heat exchanger for air conditioner indoor unit and air conditioner indoor unit
CN201522147U (en) Heat exchanger
JP2013250033A (en) Parallel-flow heat exchanger and air conditioner comprising same
WO2018040036A1 (en) Micro-channel heat exchanger and air-cooled refrigerator
WO2018040034A1 (en) Micro-channel heat exchanger and air-cooled refrigerator
CN212511483U (en) Thin type air conditioner indoor heat exchange system
CN201522145U (en) Parallel heat exchanger of improved wing band structure
JP2010127511A (en) Heat exchanger
CN217082989U (en) Novel refrigerant heat exchanger
CN207816042U (en) Efficient micro-channel heat exchanger
CN207730064U (en) Novel micro-channel heat exchanger

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant