CN104019694B - A kind of 1/3 sector shaped helical folding face baffle heat exchanger - Google Patents
A kind of 1/3 sector shaped helical folding face baffle heat exchanger Download PDFInfo
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- CN104019694B CN104019694B CN201410213364.8A CN201410213364A CN104019694B CN 104019694 B CN104019694 B CN 104019694B CN 201410213364 A CN201410213364 A CN 201410213364A CN 104019694 B CN104019694 B CN 104019694B
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Abstract
A kind of 1/3 sector shaped helical folding face baffle heat exchanger, comprise 1/3 fan-shaped folding face deflection plate, 1/3 fan-shaped folding face deflection plate is formed by the cutting of one piece of standard ellipse, two straight flanges of 1/3 fan-shaped folding face deflection plate are equal and symmetrical with the minor axis of standard ellipse, and 1/3 fan-shaped folding face deflection plate, owing to defining folding surface design feature in deflection plate both sides, makes adjacent two pieces of deflection plate energy close contacts, enclose triangle notch, blocked leakage, shell side spiral flow is more obvious, and heat transfer property significantly improves.
Description
Technical field
The present invention relates to helical deflecting plate pipe and shell type heat exchanger technical field, be specifically related to a kind of 1/3 sector shaped helical folding face baffle heat exchanger.
Background technology
Shell-and-tube heat exchanger is simple due to structure, operates the advantages such as reliable, applied widely, widely uses in heat-exchange apparatus.Conventional tube shell heat exchanger mainly adopts segmental baffle, but its exist flow resistance large, have flow dead, easily fouling, restrain easy induced vibration and destroy, especially in shortcomings such as segmental baffle indentation, there.
Spiral baffle heat exchanger, as a kind of potential segmental baffle board heat exchangers substitute, solves the above-mentioned shortcoming of segmental baffle board heat exchangers substantially.Existing spiral baffle heat exchanger mainly adopts 1/4 segmental baffle in the market, forms a spiralization cycle by four pieces of deflection plates.But this structure can form obvious triangle notch when the straight flange overlap joint of adjacent two pieces of deflection plates, makes shell-side fluid form short circuit and leaks, reduce the heat exchange property of heat exchanger.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of 1/3 sector shaped helical folding face baffle heat exchanger, the triangle notch between existing 1/4 segmental baffle can be closed.
In order to achieve the above object, the technical scheme that the present invention takes is:
A kind of 1/3 sector shaped helical folding face baffle heat exchanger, comprise 1/3 fan-shaped folding face deflection plate, 1/3 fan-shaped folding face deflection plate is formed by the cutting of one piece of standard ellipse, and two straight flanges of 1/3 fan-shaped folding face deflection plate are equal and symmetrical with the minor axis of standard ellipse, 1/3 fan-shaped folding face deflection plate angle
be greater than 120 °, and only change with 1/3 fan-shaped folding face deflection plate helixangleβ, be specially
The planar profile profile of 1/3 fan-shaped folding face deflection plate is by camber line
with two straight flange OB ', OC ' composition, 1/3 fan-shaped folding face deflection plate is on the basis of 1/3 fan-shaped plan deflection plate, with the corresponding two-point defined line (FD or GE) of (F or G) on deflection plate straight flange lap-joint (D or E) and deflection plate camber line for rotating shaft, the angle of rotating screw angle β in the same direction, form tandem two pieces of folding surface b, c, rotating shaft FD, GE is parallel with deflection plate straight flange angle angular bisector OA, rotating shaft FD, GE determines position: first by the overlap joint degree of technological design deflection plate, then two pieces of deflection plate straight flange contact point D are determined by overlap joint degree, E, finally by D, E 2 is two straight line FD, GE, it is made to be parallel to angular bisector OA, F, G 2 is the intersection point of straight line and camber line, rotating shaft FD should be guaranteed, GE do not have pore, every block 1/3 fan-shaped folding face deflection plate is identical with the angle between housing axis, heat exchanger shell cross section is projected as 120 °.
The overlap joint degree span of described 1/3 fan-shaped folding face deflection plate is 0 ~ 50%.
Described helixangleβ span is 0 ° ~ 50 °.
Compared with prior art, the invention has the advantages that:
1/4 segmental baffle that current spiral baffle heat exchanger mainly adopts can form obvious triangle notch in adjacent two pieces of deflection plate straight flange lap-joints, segment fluid flow is made to form axial flow along triangle notch, decrease the rate-of flow of principal screw, weaken heat transfer; 1/3 fan-shaped folding face deflection plate is owing to defining folding surface design feature in deflection plate both sides, make adjacent two pieces of deflection plate energy close contacts, enclose triangle notch, block leakage, shell side spiral flow is more obvious, heat transfer property significantly improves, and 1/3 sector shaped helical proposed by the invention rolls over face baffle heat exchanger compared to original 1/4 sector shaped helical baffle plate heat exchanger under identical operating mode, the hot property factor
improve about 80%.
Accompanying drawing explanation
Fig. 1 (a) is 1/3 fan-shaped plan/folding face deflection plate planar structure schematic diagram; Fig. 1 (b) is 1/3 fan-shaped plan/folding face deflection plate schematic perspective view; Fig. 1 (c) is 1/3 fan-shaped folding face deflection plate level schematic diagram.
Fig. 2 is that 1/3 fan-shaped folding face deflection plate connects layout schematic diagram.
Fig. 3 is 1/3 sector shaped helical folding face baffle heat exchanger Pipe bundle structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
See figures.1.and.2, a kind of 1/3 sector shaped helical folding face baffle heat exchanger, comprise 1/3 fan-shaped folding face deflection plate, 1/3 fan-shaped folding face deflection plate is formed by the cutting of one piece of standard ellipse, two straight flanges of 1/3 fan-shaped folding face deflection plate are equal and symmetrical with the minor axis of standard ellipse, 1/3 fan-shaped folding face deflection plate angle
be greater than 120 °, and only variation relation is with 1/3 fan-shaped plan deflection plate helixangleβ
the planar profile profile of 1/3 fan-shaped plan deflection plate is by camber line
with two straight flange OB ', OC ' composition, and the equation of this standard ellipse meets
namely oval major diameter a and minor axis diameter b is respectively a=D/cos β, b=D, 1/3 fan-shaped folding face deflection plate is on the basis of 1/3 fan-shaped plan deflection plate, with the corresponding two-point defined line (FD or GE) of (F or G) on deflection plate straight flange lap-joint (D or E) and deflection plate camber line for rotating shaft, rotate the angle of rotating screw angle β in the same direction, form tandem two pieces of folding surface b, c, rotating shaft FD, GE is parallel with deflection plate straight flange angle angular bisector OA, rotating shaft FD, GE determines position: first by the overlap joint degree of technological design deflection plate, then two pieces of deflection plate straight flange contact point D are determined by overlap joint degree, E, finally by D, E 2 is two straight line FD, GE, it is made to be parallel to angular bisector OA, F, G 2 is the intersection point of straight line and camber line, rotating shaft FD, GE should guarantee that it does not have pore, every block 1/3 fan-shaped folding face deflection plate is identical with the angle between housing axis, heat exchanger shell cross section is projected as 120 °.
The overlap joint degree span of described 1/3 fan-shaped folding face deflection plate is 0 ~ 50%.
Described helixangleβ span is 0 ° ~ 50 °.
When meeting engineering actual production, overlap joint degree and helixangleβ larger, adopt 1/3 fan-shaped folding face deflection plate more obvious for the raising of heat exchanger performance.
Operation principle of the present invention is:
With reference to Fig. 2 and Fig. 3, when 1/3 fan-shaped folding face deflection plate is arranged on and restrains upper, by the airtight connection of folding surface of deflection plate 2 both sides, two piece of the 1 fan-shaped folding face deflection plate the 1 and the 2 1/3 fan-shaped folding face, one 1/3 fan-shaped folding face deflection plate 1, 2 1/3 deflection plate the 2 and the 3 1/3 fan-shaped folding face, fan-shaped folding face deflection plate 3 forms a pitch, shell side is made to form airtight spirality channel, eliminate the triangle notch between original two pieces of surface plate straight flanges, enhance shell-side heat transfer coefficient, on 1/3 fan-shaped folding face deflection plate stringing with deflection plate angular bisector OA for symmetry axis arrange, on three piece of 1/3 fan-shaped folding face deflection plate of a pitch, their piping mode is identical, make heat exchanger stringing more even, process to deflection plate, assembling becomes and is more prone to.
On 1/3 fan-shaped folding face deflection plate stringing with deflection plate angular bisector OA for symmetry axis arrange, on three piece of 1/3 fan-shaped folding face deflection plate of a pitch, their piping mode is identical, makes heat exchanger stringing more even, to 1/3 fan-shaped folding face deflection plate processing, assembling becomes and is more prone to.With reference to Fig. 1,1/3 fan-shaped folding face deflection plate plane a is parallel to the measure-alike of pore d on the deflection plate pore size in angular bisector OA direction and heat exchanger tube sheet, and be of a size of heat exchanger tube sheet pore d size divided by cos β perpendicular to the deflection plate pore on angular bisector, i.e. d/cos β, so the pore on deflection plate plane a is d/cos β with major diameter and the ellipse that minor axis diameter is d, and the pore on deflection plate folding surface b, c is the circle identical with pore d on heat exchanger tube sheet.
Claims (3)
1. a sector shaped helical folding face baffle heat exchanger, comprise 1/3 fan-shaped plan deflection plate, it is characterized in that: 1/3 fan-shaped folding face deflection plate is formed by the cutting of one piece of standard ellipse, two straight flanges of 1/3 fan-shaped folding face deflection plate are equal and symmetrical with the minor axis of standard ellipse, 1/3 fan-shaped folding face deflection plate angle
be greater than 120 °, and only change with 1/3 fan-shaped folding face deflection plate helixangleβ, be specially
The planar profile profile of 1/3 fan-shaped folding face deflection plate is by camber line
with two straight flange OB ', OC ' composition, 1/3 fan-shaped folding face deflection plate is on the basis of 1/3 fan-shaped plan deflection plate, with corresponding two-point defined line FD or GE of F or G on deflection plate straight flange lap-joint D or E and deflection plate camber line for rotating shaft, the angle of rotating screw angle β in the same direction, form tandem two pieces of folding surface b, c, rotating shaft FD, GE is parallel with deflection plate straight flange angle angular bisector OA, rotating shaft FD, GE determines position: first by the overlap joint degree of technological design deflection plate, then two pieces of deflection plate straight flange contact point D are determined by overlap joint degree, E, finally by D, E 2 is two straight line FD, GE, it is made to be parallel to angular bisector OA, F, G 2 is the intersection point of straight line and camber line, rotating shaft FD should be guaranteed, GE do not have pore, every block 1/3 fan-shaped folding face deflection plate is identical with the angle between housing axis, heat exchanger shell cross section is projected as 120 °.
2. a kind of 1/3 sector shaped helical folding face baffle heat exchanger according to claim 1, is characterized in that: the overlap joint degree span of described 1/3 fan-shaped folding face deflection plate is 0 ~ 50%.
3. a kind of 1/3 sector shaped helical folding face baffle heat exchanger according to claim 1, is characterized in that: described helixangleβ span is 0 ° ~ 50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213364.8A CN104019694B (en) | 2014-05-20 | 2014-05-20 | A kind of 1/3 sector shaped helical folding face baffle heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410213364.8A CN104019694B (en) | 2014-05-20 | 2014-05-20 | A kind of 1/3 sector shaped helical folding face baffle heat exchanger |
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| CN104019694A CN104019694A (en) | 2014-09-03 |
| CN104019694B true CN104019694B (en) | 2015-11-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973040A (en) * | 2016-05-31 | 2016-09-28 | 郑州大学 | 1/4 elliptical folding surface helical baffle plate heat exchanger with baffle plate structure |
| CN109186312B (en) * | 2018-10-23 | 2023-09-26 | 辽宁科技大学 | Heat radiator with scale-removing baffle plate |
| CN110081762B (en) * | 2019-04-10 | 2020-01-21 | 西安交通大学 | Circular tube spiral twisted flat tube mixed type folded-surface spiral baffle plate heat exchanger structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2310975Y (en) * | 1997-10-15 | 1999-03-17 | 杨杰辉 | Spiral baffle heat exchanger |
| CN2876686Y (en) * | 2005-11-21 | 2007-03-07 | 南京工业大学 | One fourth elliptic spiral baffle sell-and-tube heat exchanger |
| CN201246980Y (en) * | 2008-08-08 | 2009-05-27 | 东南大学 | Non-equilateral tripartition sector spiral baffle plate shell type heat exchanger |
| CN201876185U (en) * | 2010-04-30 | 2011-06-22 | 王斯民 | Folding baffle for spiral baffle heat exchanger |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6060492A (en) * | 1983-09-14 | 1985-04-08 | Mitsubishi Heavy Ind Ltd | Heat exchanger |
| JPH04194595A (en) * | 1990-11-27 | 1992-07-14 | Daikin Ind Ltd | Shell and tube type heat exchanger |
-
2014
- 2014-05-20 CN CN201410213364.8A patent/CN104019694B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2310975Y (en) * | 1997-10-15 | 1999-03-17 | 杨杰辉 | Spiral baffle heat exchanger |
| CN2876686Y (en) * | 2005-11-21 | 2007-03-07 | 南京工业大学 | One fourth elliptic spiral baffle sell-and-tube heat exchanger |
| CN201246980Y (en) * | 2008-08-08 | 2009-05-27 | 东南大学 | Non-equilateral tripartition sector spiral baffle plate shell type heat exchanger |
| CN201876185U (en) * | 2010-04-30 | 2011-06-22 | 王斯民 | Folding baffle for spiral baffle heat exchanger |
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Effective date of registration: 20201224 Address after: 362000 No.203, building 2, Jinlong City, Taocheng Town, Yongchun County, Quanzhou City, Fujian Province Patentee after: Quanzhou yongjue Technology Co., Ltd Address before: 710049 No. 28, Xianning Road, Xi'an, Shaanxi Patentee before: XI'AN JIAOTONG University |
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Effective date of registration: 20210111 Address after: Liu'an Development Zone, Yongchun County, Quanzhou City, Fujian Province (east side of Taoxi bridge) Patentee after: Yongchun County Product Quality Inspection Institute Fujian fragrance product quality inspection center, national incense burning product quality supervision and Inspection Center (Fujian) Address before: 362000 No.203, building 2, Jinlong City, Taocheng Town, Yongchun County, Quanzhou City, Fujian Province Patentee before: Quanzhou yongjue Technology Co., Ltd |