CN208952750U - A kind of pleated sheet fin heat exchanger - Google Patents

Abstract

The utility model relates to a kind of pleated sheet fin heat exchangers, belong to technical field of heat exchangers, including core, upper cover and lower head, fluid inlet is equipped at the upper cover, fluid outlet is equipped at the lower head, heat exchanging chamber is equipped with inside the core, the core includes multistage first fluid flow-through cell and multistage second fluid circulation unit, the first fluid flow-through cell includes inner fin and 2 pleated sheets mutually fastened, the both ends of the pleated sheet are respectively to both perpendicular to or approximately perpendicular to first fluid, the direction of second fluid flowing folds 1 time at least to form wing side, the second fluid circulation unit includes outer fin and 2 short strip of paper used for sealings, the utility model has production cost and mould investment expense low, high production efficiency, slip is low, the feature that bearing capacity is strong and heat exchange efficiency is high, simultaneously, pleated sheet It can be made of automatic tabs machine, automatic tabs machine cooperation fin machine and automatic core kludge use, and greatly improve packaging efficiency.

Description

A kind of pleated sheet fin heat exchanger

Technical field

The utility model belongs to technical field of heat exchangers, relates in particular to a kind of pleated sheet fin heat exchanger.

Background technique

The aluminium heat-exchange device being most widely used currently on the market is broadly divided into two kinds: one is plate-fin heat exchanger, Its first fluid circulation passage is made of plain film, long strip of paper used for sealing and inner fin, second fluid circulation passage by plain film, short strip of paper used for sealing and Outer fin is constituted, and after each component assembles, into vacuum brazing furnace, forms core by welding in 6-7 hours, the core being welded Body and aluminium end socket are through high-frequency welding formation heat exchanger assembly.Based on plate-fin heat exchanger own structural characteristics and welding procedure Particularity, it has the advantages that heat exchange efficiency is high, bearing capacity is strong, it is disadvantageous in that, and slip is high, maintenance cost High, material and high labor cost.Another kind is aluminum pipe band heat exchanger, and first fluid circulation passage directly uses ratio-frequency welding It takes over (or extruded tube), second medium circulation passage, which by adjacent ratio-frequency welding takes over (or extruded tube) and is formed by space, (and to be filled out Fill outer fin) it constitutes, after each component is sequentially overlapped and loads onto main leaf, into tunnel soldering oven, core is formed by welding in 1 hour (welding or press fitting) forms heat exchanger assembly after body, core and end socket assembly.Based on aluminum pipe band heat exchanger own structural characteristics And the characteristics of welding procedure, it has the advantages that product weight is small, the cost of material is low.Disadvantage is that bearing capacity It is low, heat exchange efficiency is low, intensity is low, main leaf mould investment is costly.

In conclusion existing heat exchanger there will naturally be inconvenient and defect in actual use, so it is necessary to be improved.

Utility model content

For various deficiencies of the prior art, to solve the above-mentioned problems, it is proposed that a kind of folding of novel architecture form Piece fin heat exchanger, with production cost and mould investment expense low, high production efficiency, slip is low, bearing capacity is strong and The high feature of heat exchange efficiency.

To achieve the above object, the utility model provides the following technical solutions:

A kind of pleated sheet fin heat exchanger, including core, upper cover and lower head, be equipped at the upper cover fluid into Mouthful, fluid outlet is equipped at the lower head, is equipped with heat exchanging chamber inside the core, and fluid inlet and fluid outlet respectively with Heat exchanging chamber is connected to, and the core includes multistage first fluid flow-through cell and multistage second fluid circulation unit, described first-class Circulation has first fluid in body flow-through cell, and circulation has second fluid in the second fluid circulation unit；

The first fluid flow-through cell includes inner fin and 2 pleated sheets mutually fastened, and the pleated sheet is set as flat Plate, both ends fold 1 time at least respectively to form wing side, and the folding direction on wing side is simultaneously vertically or approximately perpendicular to first The direction that fluid, second fluid flow, the wing side of 2 pleated sheets mutually fasten the first fluid stream for being formed and accommodating inner fin Circulation passage；

The second fluid circulation unit includes outer fin and 2 short strip of paper used for sealings, and 2 short strip of paper used for sealings are opposite and what is be spaced sets Between adjacent first fluid flow-through cell, to form the second fluid circulation passage for accommodating outer fin, and first fluid stream Circulation passage and second fluid circulation passage are perpendicular.

Further, the inner fin is set as wavy along the width direction of pleated sheet, and wave crest is respectively and positioned at first 2 pleated sheets in fluid flow-through cell are affixed setting.

Further, the outer fin is set as wavy along the length direction of pleated sheet, and wave crest is adjacent with 2 respectively First fluid flow-through cell is affixed setting.

Further, 2 short strip of paper used for sealings are arranged along the length direction interval of pleated sheet, and 2 short strip of paper used for sealings are located at Top, the bottom of pleated sheet.

Further, the pleated sheet is the aluminium flake with welding composite layer.

Further, the setting arranged side by side of multistage first fluid flow-through cell is located at most prime, most final stage between 2 cover boards Second fluid circulation unit be located between first fluid flow-through cell, cover board.

Further, the extending direction and folding of the extending direction of the first fluid circulation passage, second fluid circulation passage The orthogonal setting of the folding direction of lamination.

Further, when the wing edge contraction 1 time, the angle of wing side and pleated sheet is 90 ° -91.8 °, when the wing side When folding times are more than or equal to 2, it is 90 ° -91.8 ° that the 1st time, which folds with the angle of pleated sheet, adjacent 0 ° of 2 foldings formation - 3.6 ° of angle.

Further, the both ends of the pleated sheet fold 1 time.

Further, fit folding 2 times of one end of the pleated sheet, the other end fold 3 times.

The beneficial effects of the utility model are:

Compared with prior art, the utility model constitutes first fluid circulation instead of by partition lengthening strip of paper used for sealing by pleated sheet The plate-fin heat exchanger structure of basic unit, and first fluid circulation basic unit is made of ratio-frequency welding adapter tube (extruded tube) Tube-strip heat exchanger structure, welding manner are continuous tunnel furnace welding.The utility model passes through on product structure and production technology Improvement, make it have the feature that plate-fin heat exchanger bearing capacity is strong, heat exchange efficiency is high, and let out with pipe rock radiator The low feature of leak rate.In terms of production efficiency, since pleated sheet can be made of automatic tabs machine, automatic tabs machine cooperates fin machine And automatic core kludge uses, its packaging efficiency can be made to be much better than plate-fin and tube-strip heat exchanger.

Illustrate that the utility model is better than plate-fin heat exchanger by taking a solder yield as an example, circulation is logical in one 50 layers Road, the fin heat exchanger core of 1000mm long, 100mm wide, weld seam cumulative length reach 220.4m, and the same number of plies and The pleated sheet fin heat exchanger of size, weld seam cumulative length only have 20.4m.Weld seam cumulative length is long and vacuum brazing is welded The high feature of difficulty is connect, determines that a solder yield of fin heat exchanger core is difficult more than 70%.And the utility model It is welded since weld seam cumulative length is short, and using continuous tunnel furnace, a solder yield of core can achieve 98% or more.

Illustrate the utility model better than tube-strip heat exchanger, the explosion of common tube-strip heat exchanger by taking bearing capacity as an example For pressure usually in 2-3Mpa, the burst pressure of the utility model after tested, at least can reach 8Mpa.

Compare in terms of production efficiency, the heat-exchanger products that a core size is 800mm*600mm*60mm, plate-fin The production hour of product about 16 hours, the production hour of corrugated tube type product about 2 hours, and the production hour of product of the present invention About 2 hours.

In conclusion the utility model combines the advantages of plate-fin heat exchanger and tube-strip heat exchanger, evade simultaneously The shortcomings that the two.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is partial structural diagram at A in Fig. 1；

Fig. 3 is a kind of structural schematic diagram of embodiment of core；

Fig. 4 is partial structural diagram at B in Fig. 3；

Fig. 5 is the structural schematic diagram of pleated sheet in Fig. 3；

Fig. 6 is the structural schematic diagram of core another embodiment；

Fig. 7 is partial structural diagram at C in Fig. 6；

Fig. 8 is the structural schematic diagram of pleated sheet in Fig. 6；

Fig. 9 is partial structural diagram at D in Fig. 8；

Figure 10 is partial structural diagram at E in Fig. 8；

Figure 11 is to fold multiple pleated sheet assembling schematic diagram；

Figure 12 is to fold multiple pleated sheet assembling schematic diagram；

Figure 13 is to fold multiple pleated sheet assembling schematic diagram.

In attached drawing: 1- upper cover, 2- fluid inlet, 3- fluid outlet, 4- first fluid flow-through cell, 5- second fluid stream Logical unit, the short strip of paper used for sealing of 6-, 7- cover board, flow direction in 8- first fluid circulation passage, fluid in 9- second fluid circulation passage Direction, 10- pleated sheet, the 1001- wing are in, the 1002- wing, the 1003- wing gap, 1005- wing side, wing in 11- in, the 1004- wing Piece, 12- first fluid circulation passage, 13- outer fin, 14- second fluid circulation passage.

Specific embodiment

In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to the utility model Attached drawing carries out clear, complete description to the technical solution of the utility model, and based on the embodiment in the application, this field is general Logical technical staff other similar embodiments obtained without making creative work, all should belong to the application The range of protection.In addition, the direction word mentioned in following embodiment, such as "upper" "lower" " left side " " right side " etc. are only with reference to attached drawing Direction, therefore, the direction word used be for illustrative and not limiting the utility model create.

Embodiment one:

As shown in Figure 1, Figure 2 and shown in Fig. 5, a kind of pleated sheet fin heat exchanger, including core, upper cover 1 and lower head, it is described Upper cover 1 and lower head are located at the both ends of core.It is equipped with fluid inlet 2 at the upper cover 1, is equipped at the lower head Fluid outlet 3, the core inside is equipped with heat exchanging chamber, and fluid inlet 2 and fluid outlet 3 are connected to heat exchanging chamber respectively, described Core includes multistage first fluid flow-through cell 4 and multistage second fluid circulates unit 5, in the first fluid flow-through cell 4 Circulation has first fluid, and circulation has second fluid in the second fluid circulation unit 5.

Specifically, multistage first fluid flow-through cell 4 is side by side and the setting at interval is between 2 cover boards 7, it is described first-class Body flow-through cell 4 includes the pleated sheet 10 that inner fin 11 and 2 mutually fastens, and the structure of 2 pleated sheets 10 is identical.The folding Lamination 10 is set as tabular, and both ends are respectively to both perpendicular to or approximately perpendicular to the side flowed of first fluid, second fluid To folding 1 time at least to form wing side 1001, the wing side 1001 of 2 pleated sheets, which mutually fastens to be formed, accommodates inner fin 11 First fluid circulation passage 12, that is to say, that fluid injects first fluid circulation passage 12 through fluid inlet 2, most afterwards through fluid 3 outflow of outlet, fluid flow direction are flow direction 8 in first fluid circulation passage.Meanwhile the inner fin 11 is along pleated sheet 10 Width direction be set as wavy, wave crest respectively be located at first fluid flow-through cell 4 in 2 10 phases of pleated sheet be sticked It sets.

Second fluid circulation unit 5 includes the short strip of paper used for sealing 6 of outer fin 13 and 2, the 2 short strip of paper used for sealing 6 it is opposite and Every be set between adjacent first fluid flow-through cell 4, to form the second fluid circulation passage 14 for accommodating outer fin 13, and First fluid circulation passage 12 and second fluid circulation passage 14 are perpendicular, that is to say, that fluid is through the injection of fluid inlet 2 second Fluid flow passageway 14 is most flowed out through fluid outlet 3 afterwards, and fluid flow direction is flow direction 9 in second fluid circulation passage.It is multistage Second fluid circulates unit 5 side by side and the setting at interval, meanwhile, the second fluid circulation unit 5 positioned at most prime, most final stage divides Not between first fluid flow-through cell 4, cover board 7.

The outer fin 13 is set as wavy along the length direction of pleated sheet 10, wave crest respectively adjacent with 2 One fluid flow-through cell 4 is affixed setting.Meanwhile the 2 short strip of paper used for sealing 6 is arranged along the length direction interval of pleated sheet 10, makees To be preferred, 2 short strip of paper used for sealing 6 is located at the top of pleated sheet 10, bottom, meanwhile, short strip of paper used for sealing 6 is set as aluminium block, external fin 13 play support, limit and fixed function.

Preferably, the extension side of the extending direction of the first fluid circulation passage 12, second fluid circulation passage 14 To setting orthogonal with the folding direction of pleated sheet 10, in some other embodiment, when the wing edge contraction 1 time, wing side with The angle of pleated sheet 10 is 88.2 ° -90 °, when the folding times on the wing side are more than or equal to 2, the 1st folding and pleated sheet Angle is 90 ° -91.8 °, and 2 times adjacent foldings form 0 ° -3.6 ° of angle.The pleated sheet 10 is with welding composite layer Aluminium flake.During the core assembled welds in continuous tunnel furnace, since pleated sheet 10 mutually fastens, compound melting layer is simultaneously filled up Gap, so that two pleated sheets 10 be welded together, similarly, pleated sheet 10 and short strip of paper used for sealing 6, inner fin 11, outer fin 13 it Between be respectively welded together so that all components all welding it is integral.

Embodiment two:

As in Figure 3-5, the part that the present embodiment is the same as example 1 repeats no more, unlike:

The both ends of the pleated sheet 10 fold 1 formation wing side 1001, and folding angles are 90 °, i.e., wing side 1001 with Pleated sheet 10 is vertical.Meanwhile the wing side 1001 of 2 pleated sheets 10 is bonded to each other setting, this heat exchanger is suitable for automobile and quiet The low operating pressure operating condition of state equipment.In some other embodiment, wing side 1001 and 10 near normal of pleated sheet, and wing side Angle between 1001 and pleated sheet 10 is 88.2 ° -90 °.

Embodiment three:

As illustrated in figs. 6-11, the part that the present embodiment is the same as example 1 repeats no more, unlike:

2 formation wing sides 1002 of folding that one end of the pleated sheet 10 fits, the other end fold 3 formation wing sides 1003, and the wing is 1003 vertical with pleated sheet 10 in the 1002, wing.As shown in figure 9, in the folding process on wing side 1003, the 1st Secondary folding and the 2nd folding fit, and fold between the 3rd folding there are wing side gap 1004 for the 2nd time, and wing side gap 1004 are interlocked with the wing side 1002 of another pleated sheet 10.That is, the pleated sheet thickness that wing side 1002 is two layers, wing side 1003 be five layers of pleated sheet thickness.

As shown in figure 12, in some other embodiment, 2 formation wings of folding that one end of the pleated sheet 10 fits Side 1002, the other end folds 4 formation wing sides 1005, in the folding process on wing side 1005, the 1st folding and the 2nd folding Folded to fit, there are wing side gap, the 3rd folding and the 4th foldings to fit between the 2nd folding and the 3rd folding, and the wing At gap and the wing of another pleated sheet 10,1002 are interlocked.

As shown in figure 13, in some other embodiment, one end of the pleated sheet 10 folds 3 formation wing sides 1003, Its other end folds 4 formation wing sides 1005.Wherein, the wing 1005 folding process in the 1003, wing repeats no more, 2 foldings Piece 10 mutually fastens.

In some other embodiment, the wing in the 1002, wing 1003, wing side 1005 with 10 near normal of pleated sheet, phase 0 ° -3.6 ° of angle is respectively formed between 2 times adjacent foldings.

The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and , when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it should still belong to this In utility model covering scope.

Claims (10)

1. a kind of pleated sheet fin heat exchanger, including core, upper cover and lower head, fluid inlet is equipped at the upper cover, Be equipped with fluid outlet at the lower head, be equipped with heat exchanging chamber inside the core, and fluid inlet and fluid outlet respectively with change Hot chamber is connected to, which is characterized in that the core includes multistage first fluid flow-through cell and multistage second fluid circulation unit, institute Stating circulation in first fluid flow-through cell has first fluid, and circulation has second fluid in the second fluid circulation unit；

The first fluid flow-through cell includes inner fin and 2 pleated sheets mutually fastened, and the pleated sheet is set as tabular, Its both ends folds 1 time at least respectively to form wing side, and the folding direction on wing side it is vertical simultaneously or approximately perpendicular to first fluid, The direction of second fluid flowing, the wing side of 2 pleated sheets, which mutually fastens to form the first fluid for accommodating inner fin and circulate, to be led to Road；

The second fluid circulation unit includes outer fin and 2 short strip of paper used for sealings, and 2 short strip of paper used for sealings are opposite and what is be spaced is set to phase Between adjacent first fluid flow-through cell, to form the second fluid circulation passage for accommodating outer fin, and first fluid circulation is logical Road and second fluid circulation passage are perpendicular.

2. a kind of pleated sheet fin heat exchanger according to claim 1, which is characterized in that the inner fin is along pleated sheet Width direction be set as wavy, wave crest respectively be located at first fluid flow-through cell in 2 pleated sheets be affixed setting.

3. a kind of pleated sheet fin heat exchanger according to claim 1, which is characterized in that the outer fin is along pleated sheet Length direction be set as wavy, the first fluid flow-through cell adjacent with 2 is affixed setting to wave crest respectively.

4. a kind of pleated sheet fin heat exchanger according to claim 1, which is characterized in that 2 short strip of paper used for sealings are along folding The length direction interval of lamination is arranged, and 2 short strip of paper used for sealings are located at the top of pleated sheet, bottom.

5. a kind of pleated sheet fin heat exchanger according to claim 1 to 4, which is characterized in that the pleated sheet is band There is the aluminium flake of welding composite layer.

6. a kind of pleated sheet fin heat exchanger according to claim 5, which is characterized in that multistage first fluid flow-through cell Between 2 cover boards, the second fluid circulation unit positioned at most prime, most final stage is located at first fluid stream for setting arranged side by side Between logical unit, cover board.

7. a kind of pleated sheet fin heat exchanger according to claim 6, which is characterized in that the first fluid circulation passage Extending direction, second fluid circulation passage extending direction and pleated sheet the orthogonal setting of folding direction.

8. a kind of pleated sheet fin heat exchanger according to claim 6, which is characterized in that when the wing edge contraction 1 time, The angle of wing side and pleated sheet is 90 ° -91.8 °, when the folding times on the wing side are more than or equal to 2, the 1st folding and folding The angle of piece is 90 ° -91.8 °, and 2 times adjacent foldings form 0 ° -3.6 ° of angle.

9. a kind of pleated sheet fin heat exchanger according to claim 8, which is characterized in that roll at the both ends of the pleated sheet It is 1 time folded.

10. a kind of pleated sheet fin heat exchanger according to claim 8, which is characterized in that one end phase of the pleated sheet The folding of fitting 2 times, the other end fold 3 times.