CN104949566A - Helical baffle and tube shell heat exchanger thereof - Google Patents
Helical baffle and tube shell heat exchanger thereof Download PDFInfo
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- CN104949566A CN104949566A CN201410126885.XA CN201410126885A CN104949566A CN 104949566 A CN104949566 A CN 104949566A CN 201410126885 A CN201410126885 A CN 201410126885A CN 104949566 A CN104949566 A CN 104949566A
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- helical baffles
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Abstract
The invention discloses a helical baffle and a tube shell heat exchanger thereof, and belongs to parts of heat exchanging or heat transfer equipment. The problems that the existing helical baffle manufacturing technology is difficult and production cost is high are solved. The helical baffle comprises at least two helical baffle units, wherein each helical baffle unit comprises two semi-cylindrical core tubes which are connected with each other; and an arc surface of at least one core tube is provided with a baffle body which extends along the helical direction. The helical baffle in an embodiment is used for heat exchanging equipment such as the tube shell heat exchanger.
Description
[technical field]
The present invention relates to the helical baffles of shell-and-tube heat exchanger, belong to the parts of heat exchange or heat-transfer equipment.
[background technology]
Evaporimeter is the important composition part in Central air-conditioning unit, its heat exchange property and cost directly can affect performance and the manufacturing cost of whole refrigeration system, deflection plate is the important composition parts of evaporimeter, what the most generally apply in traditional heat exchangers is segmental baffle, due to exist choked flow and pressure drop large, have little, the vibration condition of mean temperature difference of stagnant dead band of flow, easily fouling, heat transfer under the easy defect such as to lose efficacy, in recent years gradually replace by helical baffles.
Spiral baffle heat exchanger becomes helicoid arrangement of baffles, and heat exchanger shell fluid is flowed in the shape of a spiral, to realize effectively reducing the flow resistance of shell-side and the object of augmentation of heat transfer.Existing spiral baffle heat exchanger has two classes, and a class is employing two pieces or polylith is fan-shaped, the discontinuous spiral baffle heat exchanger of elliptical plate composition approximate helical curved surface, and another kind of is the heat exchanger with continuous helical baffle plates adopting continuous helical curved surface.For discontinuous helical baffles, continuous helical deflecting plate makes flowing closer to screw type, can reduce resistance and leakage current further.Fluid flowing, closer to longitudinal plug flow, effectively reduces flow dead, reduces the vibration of pipe, decrease flow pressure drop, improve heat exchange efficiency, be widely used in many occasions such as chemical oil refining at present.
In spiral baffle heat exchanger, when fluid is flowing in close to shell inner surface position, owing to having deviation with desirable screw, do not occur Utopian VELOCITY DISTRIBUTION, flow velocity is corresponding lower herein, there is slow flow region, therefore heat-transfer effect is undesirable.So prior art has and proposes double-spiral structure deflection plate, and it is at 1/2 place of single coil configuration, be arranged in parallel one group of same helical baffles, and original single-screw passage is divided into two strands of parallel helical ducts.Under identical casings internal diameter and helical angle, double-stranded pitch is 1/2 of single coil configuration, therefore can effectively reduce the no-support spaning distance of heat exchanger tube, avoids losing efficacy by vibrating the heat exchanger tube caused.But double-spiral structure causes manufacturing cycle length, cost increase due to reasons such as processing, assemblings, makes manufactory more not come into operation.
[summary of the invention]
Problem to be solved by this invention is just to provide a kind of helical baffles and shell-and-tube heat exchanger thereof, can realize helical baffles single-screw, double-helical independent assortment, reduces production cost.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of helical baffles, comprise at least two spiral baffling Slab element, described spiral baffling Slab element comprises two the half-terete core pipes be connected, and the arc surface of at least one core pipe is provided with the deflection plate extended along the hand of spiral.
Further, joinery and its construction grafting is passed through between described two half-terete core pipes; Or by buckle structure clamping between described two half-terete core pipes.
Further, one of them core pipe two ends of described two semi-cylindrical core pipes are provided with the first projection and the first slot, another core pipe two ends are provided with the second projection and the second slot, first projection and the second projection form grafting projection, first slot and the second slot are formed and patch groove, adjacent two spiral baffling Slab element are by grafting projection and the cooperation socket connection patching groove, and the deflection plate of adjacent two spiral baffling Slab element is connected mutually.
Further, described grafting projection is polygon, described in patch shape and the grafting projection mating shapes of groove.
Further, on described deflection plate, along the upper side in spiral direction and downside, the angle on the perspective plane perpendicular to the core tubular axis heart is 90 °, 120 ° or 180 °.
Further, the outer arcuate edge of described deflection plate is provided with shirt rim.
The present invention also proposes a kind of shell-and-tube heat exchanger, and comprise housing and the helical baffles being positioned at described housing, described helical baffles is the helical baffles described in above-mentioned arbitrary technical scheme.
Beneficial effect of the present invention:
Helical baffles of the present invention comprises at least two spiral baffling Slab element, spiral baffling Slab element comprises two half-terete core pipes, the plane of two core pipes is interconnected, the arc surface of at least one core pipe is provided with the deflection plate extended along the hand of spiral, the spiral baffling Slab element of such formation can single-screw or double helix, single-screw deflection plate or double helix deflection plate can be combined to form thus, compare current helical baffles, especially double helix deflection plate, the proposition of technical solution of the present invention reduces the manufacture difficulty of helical baffles, when same Making mold, single-screw can be realized, the independent assortment of double helical baffle heat exchanger runner change, and owing to only needing same Making mold, reduce production cost.
Adjacent two spiral baffling Slab element are by grafting projection and the cooperation socket connection patching groove, the helical baffles of designated length can be assembled into according to shell-and-tube heat exchanger structure, and, can save in prior art for the distance sink tube of fixing deflection plate, Tiebar structure etc., without the need to welding, be easy to assembling, enhance productivity.
Grafting projection is polygon, patch shape and the grafting projection mating shapes of groove, adjacent two spiral baffling Slab element can not produce relatively rotating in circumferential direction after grafting each other, spiral baffling Slab element obtains good circumferential locating effect, the stressed of adjacent two pieces of deflection plate joining places can be shared, deflection plate can be avoided to bear circumferential active force and produce deformation, increase the service life.
These features of the present invention and advantage will detailed description of the invention below, exposure detailed in accompanying drawing.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation of spiral baffling Slab element in the embodiment of the present invention one;
Fig. 2 is the decomposition texture schematic diagram of spiral baffling Slab element in the embodiment of the present invention one;
Fig. 3 is the structural representation of helical baffles in the embodiment of the present invention one;
Fig. 4 is the structural representation of spiral baffling Slab element in the embodiment of the present invention two;
Fig. 5 is the structural representation of helical baffles in the embodiment of the present invention two.
[detailed description of the invention]
The technical scheme of accompanying drawing to the embodiment of the present invention below in conjunction with the embodiment of the present invention is explained and illustrated, but following embodiment is only the preferred embodiments of the present invention, and not all.Based on the embodiment in embodiment, those skilled in the art under the prerequisite not making creative work obtain other embodiments, all belong to protection scope of the present invention.
Embodiment one:
The helical baffles of the present embodiment, comprises at least two spiral baffling Slab element, and spiral baffling Slab element comprises two the half-terete core pipes be connected, and the arc surface of at least one core pipe is provided with the deflection plate extended along the hand of spiral.During concrete enforcement, explain explanation for convenience, wherein will be set to the first core pipe by a core pipe, another core pipe is set to the second core pipe,
With reference to Fig. 1-3, the spiral baffling Slab element of the present embodiment comprises the first core pipe 2 and the second core pipe 1, deflection plate 3 is arranged on the arc surface of the first core pipe 2, and the downside 31 of deflection plate 3 in the hand of spiral and the angle of upper side 32 on the perspective plane perpendicular to the core tubular axis heart are 180 °.
With reference to Fig. 2, tongue-and-groove 21 and tenon 22 are set in the planar side of the first core pipe 2, at the planar side correspondence position of the second core pipe 1, tenon 12 and tongue-and-groove 11, first core pipe 2 and the second core pipe 1 are set by above-mentioned joinery and its construction grafting.Certainly, except joinery and its construction, the first core pipe 2 of the present embodiment and the second core pipe 1 also can buckle structure clampings, or directly utilize viscose to bond.
In addition, deflection plate is distributed with usually the poling hole passed for heat exchanger tube, the present embodiment be deflection plate 3 and the first core pipe 2 shaping time, on deflection plate 3, directly mold the poling hole of half bore or complete opening, to shorten the punching cycle; Be provided with shirt rim 33 at the outer arcuate edge of deflection plate 3, this shirt rim 31 can form interference fit with heat exchanger shell, makes better tightness therebetween, effectively prevents shell-side fluid from this gap leakage current, improves the heat exchange property of heat exchanger.
Because the present embodiment spiral baffling Slab element comprises the first core pipe 2 and the second core pipe 1, only on the first core pipe 2, be provided with deflection plate, the structure of the first core pipe 2 and the second core pipe 1 itself is identical, so reduce manufacture difficulty and cost, as the die cost of use in injection molding, and structure is more compact, production process is simple, with low cost and assemble more convenient.
With reference to Fig. 2, conveniently above-mentioned spiral baffling Slab element is assembled into helical baffles, the present embodiment arranges the first projection 23 in one end of the first core pipe 2, the other end arranges the first slot 24, one end of second core pipe 1 arranges the second projection 13, the other end arranges the second slot 14, after first core pipe 2 and the second core pipe 1 are assembled, first projection 23 and the second projection 13 form grafting projection, first slot 24 and the second slot 14 are formed and patch groove, grafting projection inserts and patches in groove, the socket connection of at least two spiral baffling Slab element head and the tail, the deflection plate of adjacent two spiral baffling Slab element is connected mutually, form smooth helical baffles.The deflection plate of two spiral baffling Slab element is here connected mutually and refers to: in arbitrary spiral baffling Slab element, deflection plate contacts along the downside of the hand of spiral and upper side with deflection plate in adjoining spiral deflection plate unit accordingly along the upper side of the hand of spiral and downside.
Preferably: the first projection 23 and the second projection 13 form the grafting projection of quadrangle, what the first slot 24 and the second slot 14 formed quadrangle patches groove, grafting projection can play the effect of circumference location after inserting and patching groove, adjacent two spiral baffling Slab element can not produce relatively rotating in circumferential direction after grafting each other, the stressed of adjacent two pieces of deflection plate joining places can be shared, deflection plate can be avoided to bear circumferential active force and produce deformation, increase the service life.Compared to existing technology, two spiral baffling Slab element socket connection that the present embodiment is adjacent, deflection plate is arranged on the first core pipe, and without the need to distance sink tube, Tiebar structure during assembling, welding, is easy to assembling, reduces labour intensity, improve production efficiency.
Along the upper side in the hand of spiral and downside, the angle on the perspective plane perpendicular to the first core tubular axis heart is 180 ° to the deflection plate of the present embodiment, as long as two spiral baffling Slab element connections just can form the deflection plate that has 360 ° of continuous helical curved surfaces like this, core length of tube is the half of this helical pitch; Certainly this angle also can be design in 90 ° or 120 °.
Embodiment two:
With reference to Fig. 4, 5, the spiral baffling Slab element of the present embodiment comprises the first core pipe 2 and the second core pipe 1, first core pipe 2 is provided with the first deflection plate 25, second core pipe 1 is provided with the second deflection plate 15, upper side and the downside angle on perspective plane perpendicular to the first core tubular axis heart of the first deflection plate 25 in the hand of spiral is 180 °, upper side and the downside angle on perspective plane perpendicular to the second core tubular axis heart of the second deflection plate 15 in the hand of spiral is 180 °, first deflection plate 25 is consistent with the hand of spiral of the second deflection plate 15, and the first deflection plate 25 differs 1/2 spiralization cycle with the second deflection plate 15.
With embodiment one unlike: the first core pipe 2 of the present embodiment spiral baffling Slab element and the second core pipe 1 are equipped with deflection plate, can be assembled into double helix deflection plate, compare current double helix deflection plate production technology, adopt the structure of the present embodiment, because the first core pipe with deflection plate is consistent with the second core tubular construction, can adopt same secondary mould, production process wants simple relatively, saves die cost simultaneously.In the present embodiment, the connected mode of spiral baffling Slab element with reference to embodiment one, no longer can describe in detail.
Embodiment three:
The present embodiment provides a kind of shell-and-tube heat exchanger, and comprise housing and the helical baffles being positioned at described housing, helical baffles is the helical baffles described in above-described embodiment one or embodiment two.
Owing to adopting above-mentioned helical baffles, the present embodiment is when same Making mold, the independent assortment of single-screw, the change of double helical baffle heat exchanger runner can be realized, the manufacturing efficiency of manufactory's double helix spiral baffle heat exchanger is increased dramatically, and production cost is effectively controlled.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and is familiar with this those skilled in the art and should be understood that and the present invention includes but the content being not limited to accompanying drawing and describing in detailed description of the invention above.Any amendment not departing from function and structure principle of the present invention all will comprise within the scope of the appended claims.
Claims (7)
1. a helical baffles, is characterized in that: comprise at least two spiral baffling Slab element, and described spiral baffling Slab element comprises two the half-terete core pipes be connected, and the arc surface of at least one core pipe is provided with the deflection plate extended along the hand of spiral.
2. a kind of helical baffles as claimed in claim 1, is characterized in that: by joinery and its construction grafting between described two half-terete core pipes; Or by buckle structure clamping between described two half-terete core pipes.
3. a kind of helical baffles as claimed in claim 1 or 2, it is characterized in that: one of them core pipe two ends of described two semi-cylindrical core pipes are provided with the first projection and the first slot, another core pipe two ends are provided with the second projection and the second slot, first projection and the second projection form grafting projection, first slot and the second slot are formed and patch groove, adjacent two spiral baffling Slab element are by grafting projection and the cooperation socket connection patching groove, and the deflection plate of adjacent two spiral baffling Slab element is connected mutually.
4. a kind of helical baffles as claimed in claim 3, is characterized in that: described grafting projection is polygon, described in patch shape and the grafting projection mating shapes of groove.
5. a kind of helical baffles as claimed in claim 1 or 2, is characterized in that: on described deflection plate, along the upper side in spiral direction and downside, the angle on the perspective plane perpendicular to the core tubular axis heart is 90 °, 120 ° or 180 °.
6. a kind of helical baffles as claimed in claim 1 or 2, is characterized in that: the outer arcuate edge of described deflection plate is provided with shirt rim.
7. a shell-and-tube heat exchanger, comprises housing and the helical baffles being positioned at described housing, it is characterized in that: described helical baffles is the helical baffles described in any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126885.XA CN104949566B (en) | 2014-03-31 | 2014-03-31 | A kind of helical baffles and its shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126885.XA CN104949566B (en) | 2014-03-31 | 2014-03-31 | A kind of helical baffles and its shell-and-tube heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104949566A true CN104949566A (en) | 2015-09-30 |
| CN104949566B CN104949566B (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410126885.XA Active CN104949566B (en) | 2014-03-31 | 2014-03-31 | A kind of helical baffles and its shell-and-tube heat exchanger |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605963A (en) * | 2016-04-18 | 2016-05-25 | 无锡西源电力装备厂 | Deflection baffle for power station auxiliary equipment |
| CN109595970A (en) * | 2018-12-28 | 2019-04-09 | 滨州中科催化技术有限公司 | Helical baffles and heat exchanger |
| CN109595969A (en) * | 2018-12-28 | 2019-04-09 | 滨州中科催化技术有限公司 | Baffle plate and heat exchanger |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2744263A1 (en) * | 1977-10-01 | 1979-04-05 | Funke Waerme Apparate Kg | PIPE HEAT EXCHANGER |
| JPS5912294A (en) * | 1982-07-12 | 1984-01-21 | Kamui Sangyo Kk | Production of multitubular-type heat exchanger |
| CN201133737Y (en) * | 2007-07-10 | 2008-10-15 | 东莞市永浩利制冷设备有限公司 | Air conditioner heat exchanger |
| CN202048305U (en) * | 2011-05-27 | 2011-11-23 | 珠海格力电器股份有限公司 | Pipe clamp assembly |
| CN202522123U (en) * | 2012-03-31 | 2012-11-07 | 武汉硚鑫制冷设备有限公司 | Spiral baffle applied to evaporator |
| CN202582341U (en) * | 2012-04-24 | 2012-12-05 | 江苏扬安集团扬州一万制冷设备有限公司 | Spiral baffle with sealing edge |
| CN202599204U (en) * | 2012-06-11 | 2012-12-12 | 珠海格力电器股份有限公司 | Shell-tube heat exchanger |
| CN202630780U (en) * | 2012-06-11 | 2012-12-26 | 珠海格力电器股份有限公司 | Spiral baffle plate unit, spiral baffle plate and spiral baffle plate heat exchanger |
-
2014
- 2014-03-31 CN CN201410126885.XA patent/CN104949566B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2744263A1 (en) * | 1977-10-01 | 1979-04-05 | Funke Waerme Apparate Kg | PIPE HEAT EXCHANGER |
| JPS5912294A (en) * | 1982-07-12 | 1984-01-21 | Kamui Sangyo Kk | Production of multitubular-type heat exchanger |
| CN201133737Y (en) * | 2007-07-10 | 2008-10-15 | 东莞市永浩利制冷设备有限公司 | Air conditioner heat exchanger |
| CN202048305U (en) * | 2011-05-27 | 2011-11-23 | 珠海格力电器股份有限公司 | Pipe clamp assembly |
| CN202522123U (en) * | 2012-03-31 | 2012-11-07 | 武汉硚鑫制冷设备有限公司 | Spiral baffle applied to evaporator |
| CN202582341U (en) * | 2012-04-24 | 2012-12-05 | 江苏扬安集团扬州一万制冷设备有限公司 | Spiral baffle with sealing edge |
| CN202599204U (en) * | 2012-06-11 | 2012-12-12 | 珠海格力电器股份有限公司 | Shell-tube heat exchanger |
| CN202630780U (en) * | 2012-06-11 | 2012-12-26 | 珠海格力电器股份有限公司 | Spiral baffle plate unit, spiral baffle plate and spiral baffle plate heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605963A (en) * | 2016-04-18 | 2016-05-25 | 无锡西源电力装备厂 | Deflection baffle for power station auxiliary equipment |
| CN109595970A (en) * | 2018-12-28 | 2019-04-09 | 滨州中科催化技术有限公司 | Helical baffles and heat exchanger |
| CN109595969A (en) * | 2018-12-28 | 2019-04-09 | 滨州中科催化技术有限公司 | Baffle plate and heat exchanger |
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| Publication number | Publication date |
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| CN104949566B (en) | 2019-03-01 |
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