CN104019694A - Heat exchanger with 1/3 fan-shaped spiral folding surface baffle plates - Google Patents
Heat exchanger with 1/3 fan-shaped spiral folding surface baffle plates Download PDFInfo
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- CN104019694A CN104019694A CN201410213364.8A CN201410213364A CN104019694A CN 104019694 A CN104019694 A CN 104019694A CN 201410213364 A CN201410213364 A CN 201410213364A CN 104019694 A CN104019694 A CN 104019694A
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Abstract
A heat exchanger with 1/3 fan-shaped spiral folding surface baffles comprises the 1/3 fan-shaped folding surface baffle plates. The 1/3 fan-shaped folding surface baffle plates are formed by cutting a standard oval, and two straight edges of each 1/3 fan-shaped folding surface baffle plate are equal and are symmetrical with the short axis of the stand oval. Due to the structural characteristic that bending surfaces are formed on two sides of each 1/3 fan-shaped folding surface baffle plate, every two adjacent baffle plates can make close contact with each other, a triangular notch is sealed, leakage is blocked, the spiral flow of a shell pass is more obvious, and the heat transferring performance is obviously improved.
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, due to simple in structure, operates the advantages such as reliable, applied widely, in heat-exchange apparatus, is widely used.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, has solved the above-mentioned shortcoming of segmental baffle board heat exchangers substantially.Existing spiral baffle heat exchanger is mainly to adopt 1/4 segmental baffle in the market, by four deflection plates, forms a spiralization cycle.But this structure can form obvious triangle notch when the straight flange overlap joint of adjacent two deflection plates, makes shell-side fluid form short circuit and leaks, and has reduced 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, can seal the triangle notch between existing 1/4 segmental baffle.
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 a standard ellipse cutting, and two straight flanges of 1/3 fan-shaped folding face deflection plate equate and be symmetrical with the minor axis of standard ellipse, 1/3 fan-shaped folding face deflection plate angle
be greater than 120 °, and only with 1/3 fan-shaped folding face deflection plate helixangleβ, change, 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, 2 straight lines of correspondence (FD or GE) of (F or G) on deflection plate straight flange lap-joint (D or E) and deflection plate camber line of take are rotating shaft, the angle of rotating screw angle β in the same direction, form tandem two folding surface b, c, rotating shaft FD, GE is parallel with deflection plate straight flange angle angular bisector OA, rotating shaft FD, GE location positioning: first by the overlap joint degree of technological design deflection plate, then by overlap joint degree, determine two deflection plate straight flange contact point D, E, finally pass through D, 2 of E are two straight line FD, GE, make it be parallel to angular bisector OA, F, 2 of G are the intersection points of straight line and camber line, should guarantee rotating shaft FD, on GE, there is no pore, every 1/3 fan-shaped folding face deflection plate is identical with the angle between housing axis, on heat exchanger shell cross section, be projected as 120 °.
The overlap joint degree span of 1/3 described 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 spiral baffle heat exchanger mainly adopts at present can form obvious triangle notch in adjacent two deflection plate straight flange lap-joints, make segment fluid flow form axial flow along triangle notch, the rate-of flow that has reduced main spiral, has weakened heat transfer; 1/3 fan-shaped folding face deflection plate is owing to having formed folding surface design feature in deflection plate both sides, make adjacent two deflection plate energy close contacts, sealed triangle notch, blocked leakage, shell side spiral flow is more obvious, heat transfer property significantly improves, 1/3 sector shaped helical folding face baffle heat exchanger proposed by the invention under identical operating mode than original 1/4 sector shaped helical baffle plate heat exchanger, the hot property factor
improved 80% left and right.
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 the horizontal schematic diagram of 1/3 fan-shaped folding face deflection plate.
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.
The specific embodiment
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 a standard ellipse cutting, two straight flanges of 1/3 fan-shaped folding face deflection plate equate and are 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
be that 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, 2 straight lines of correspondence (FD or GE) of (F or G) on deflection plate straight flange lap-joint (D or E) and deflection plate camber line of take are rotating shaft, rotate in the same direction the angle of rotating screw angle β, form tandem two folding surface b, c, rotating shaft FD, GE is parallel with deflection plate straight flange angle angular bisector OA, rotating shaft FD, GE location positioning: first by the overlap joint degree of technological design deflection plate, then by overlap joint degree, determine two deflection plate straight flange contact point D, E, finally pass through D, 2 of E are two straight line FD, GE, make it be parallel to angular bisector OA, F, 2 of G are the intersection points of straight line and camber line, rotating shaft FD, GE should guarantee on it, there is no pore, every 1/3 fan-shaped folding face deflection plate is identical with the angle between housing axis, on heat exchanger shell cross section, be projected as 120 °.
The overlap joint degree span of 1/3 described 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 are 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, 1/3 fan-shaped folding face deflection plate is arranged on while restraining above, by the airtight connection of folding surface of two the one 1/3 fan-shaped folding face deflection plate the 1 and the 2 1/3 fan-shaped folding face deflection plate 2 both sides, the one 1/3 fan-shaped folding face deflection plate 1, the fan-shaped folding face deflection plate 3 of the 2 1/3 fan-shaped folding face deflection plate the 2 and the 3 1/3 forms a pitch, make shell side form airtight spirality channel, eliminated the triangle notch between original two surface plate straight flanges, strengthened shell side heat transfer coefficient, on 1/3 fan-shaped folding face deflection plate, stringing be take deflection plate angular bisector OA as symmetry axis layout, on three 1/3 fan-shaped folding face deflection plates of a pitch, their stringing mode is identical, make heat exchanger stringing more even, to deflection plate, process, assembling becomes and is more prone to.
On 1/3 fan-shaped folding face deflection plate, stringing be take deflection plate angular bisector OA as symmetry axis layout, on three 1/3 fan-shaped folding face deflection plates of a pitch, their stringing mode is identical, makes heat exchanger stringing more even, give 1/3 fan-shaped folding face deflection plate processing, assembling becomes and is more prone to.With reference to Fig. 1, on 1/3 fan-shaped folding face deflection plate plane a, be parallel to the measure-alike of pore d on the deflection plate pore size of 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, be d/cos β, so the pore on deflection plate plane a is to take the ellipse that major diameter is d as d/cos β minor axis diameter, and at deflection plate folding surface b, the circle that the pore on c is with on heat exchanger tube sheet, pore d is identical.
Claims (3)
1. a sector shaped helical is rolled over 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 a standard ellipse cutting, two straight flanges of 1/3 fan-shaped folding face deflection plate equate and are symmetrical with the minor axis of standard ellipse, 1/3 fan-shaped folding face deflection plate angle
be greater than 120 °, and only with 1/3 fan-shaped folding face deflection plate helixangleβ, change, be specially
The planar profile profile of 1/3 fan-shaped folding face deflection plate is by camber line B ' C ' and 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, 2 straight lines of correspondence (FD or GE) of (F or G) on deflection plate straight flange lap-joint (D or E) and deflection plate camber line of take are rotating shaft, the angle of rotating screw angle β in the same direction, form tandem two folding surface b, c, rotating shaft FD, GE is parallel with deflection plate straight flange angle angular bisector OA, rotating shaft FD, GE location positioning: first by the overlap joint degree of technological design deflection plate, then by overlap joint degree, determine two deflection plate straight flange contact point D, E, finally pass through D, 2 of E are two straight line FD, GE, make it be parallel to angular bisector OA, F, 2 of G are the intersection points of straight line and camber line, should guarantee rotating shaft FD, on GE, there is no pore, every 1/3 fan-shaped folding face deflection plate is identical with the angle between housing axis, on heat exchanger shell cross section, be 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 1/3 described 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 |
|---|---|---|---|
| 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 true CN104019694A (en) | 2014-09-03 |
| CN104019694B CN104019694B (en) | 2015-11-25 |
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Cited By (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 |
| CN109186312A (en) * | 2018-10-23 | 2019-01-11 | 辽宁科技大学 | One kind can scale removal baffling plate heat dissipating device |
| CN110081762A (en) * | 2019-04-10 | 2019-08-02 | 西安交通大学 | A kind of circular tube spiral twisted oval tube mixed type folding face spiral baffle heat exchanger structure |
Citations (6)
| 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 |
| 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 |
-
2014
- 2014-05-20 CN CN201410213364.8A patent/CN104019694B/en active Active
Patent Citations (6)
| 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 |
| 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 |
Cited By (4)
| 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 |
| CN109186312A (en) * | 2018-10-23 | 2019-01-11 | 辽宁科技大学 | One kind can scale removal baffling plate heat dissipating device |
| CN109186312B (en) * | 2018-10-23 | 2023-09-26 | 辽宁科技大学 | Heat radiator with scale-removing baffle plate |
| CN110081762A (en) * | 2019-04-10 | 2019-08-02 | 西安交通大学 | A kind of circular tube spiral twisted oval tube mixed type folding face spiral baffle heat exchanger structure |
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| Publication number | Publication date |
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| CN104019694B (en) | 2015-11-25 |
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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 |