CN204666021U - A kind of spiral baffle heat exchanger of flow leakage prevention - Google Patents
A kind of spiral baffle heat exchanger of flow leakage prevention Download PDFInfo
- Publication number
- CN204666021U CN204666021U CN201520358643.3U CN201520358643U CN204666021U CN 204666021 U CN204666021 U CN 204666021U CN 201520358643 U CN201520358643 U CN 201520358643U CN 204666021 U CN204666021 U CN 204666021U
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- Prior art keywords
- heat exchanger
- baffle
- stream plate
- stifled stream
- trigonum
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Abstract
The utility model discloses a kind of spiral baffle heat exchanger of flow leakage prevention, there is in the housing of described heat exchanger the helical duct formed by multiple segmental baffle lap connection; Between adjacent segmental baffle, be provided with stifled stream plate, described stifled stream plate extends to its curved edge from the center of circle of described segmental baffle, and the length of described stifled stream plate is less than the radius of described segmental baffle.The spiral baffle heat exchanger of flow leakage prevention described in the utility model is on the basis of lap connection segmental baffle structure, the trigonum formed between part adjacent baffle is blocked with stifled stream plate, relative to blocking deflection plate trigonum completely, overcome the installation question that trigonum sharp corner blocks up stream plate, be convenient to manufacture, install, and compare with blocking deflection plate trigonum completely, not exclusively block the heat transfer property that trigonum effectively improves heat exchanger under unit pressure drop, enhanced heat exchange device conducts heat.
Description
Technical field
The utility model relates to the widely used pipe shell type heat exchange equipment in field such as a kind of oil, petrochemical industry, the energy, specifically, relate to a kind of spiral baffle heat exchanger with flow leakage prevention and heat conduction reinforced effect.
Background technology
Shell-and-tube heat exchanger is as oil, petrochemical industry, and the common apparatus that the fields such as the energy generally use, can the quality of its performance directly decide production process and carry out smoothly and the height of production cost.The proposition of spiral baffle heat exchanger, effectively solve convenient arc baffle heat exchanger shell-side fluid flowing flow resistance large, heat transfer coefficient is low, there is flow dead, the shortcomings such as easy fouling and vibration, are paid close attention to widely.
Continuous helical Machining of Curved Surface difficulty, the spiral baffle heat exchanger applied in engineering reality mostly adopts some pieces of segmental baffles to be overlapped to form approximate spiral camber; Due to the discontinuity of the spiral camber that lap connection deflection plate is formed, between adjacent two pieces of deflection plates, there is triangle leakage current district (as shown in Figure 1).The existence in triangle leakage current district causes the flowing of heat exchanger shell fluid to depart from real helical flow, has a strong impact on the performance of heat exchanger.
In order to solve above Problems existing, people are seeking a kind of desirable technical solution always.
Utility model content
An object of the present utility model solves at least the problems referred to above and/or defect, and provide the advantage will illustrated at least below.
The utility model also has an object to be to provide a kind of device optimizing trigonum leakage current between lap connection deflection plate, improves heat exchanger performance.
In order to realize, according to these objects of the present utility model and other advantage, providing a kind of spiral baffle heat exchanger of flow leakage prevention, there is in the housing of described heat exchanger the helical duct formed by multiple segmental baffle lap connection; Between adjacent segmental baffle, be provided with stifled stream plate, described stifled stream plate extends to its curved edge from the center of circle of described segmental baffle, and the length of described stifled stream plate is less than the radius of described segmental baffle.The length of described stifled stream plate is no more than 5/8 of described segmental baffle radius.The spiral baffle heat exchanger of flow leakage prevention described in the utility model is on the basis of lap connection segmental baffle structure, the trigonum formed between part adjacent baffle is blocked with stifled stream plate, relative to blocking deflection plate trigonum completely, overcome the installation question that trigonum sharp corner blocks up stream plate, be convenient to manufacture, install, and compare with blocking deflection plate trigonum completely, not exclusively block the heat transfer property that trigonum effectively improves heat exchanger under unit pressure drop, enhanced heat exchange device conducts heat.Along with stifled stream plate length increases, heat transfer coefficient of heat exchanger increases, but shell-side pressure drop also increases thereupon, when stifled stream plate length is 5/8 of segmental baffle radius, heat exchanger shell pass heat transfer coefficient increases by 7.5 ~ 8.5% when more not adding stifled stream plate, continue to increase stifled stream plate length, heat transfer coefficient of heat exchanger increases little.And when the stifled stream plate length of all structures is 5/8 of segmental baffle radius, heat exchanger combination property is maximum.
Preferably, wherein, described stifled stream plate is trapezoidal or triangle.
Preferably, wherein, the base of described stifled stream plate connects the center of circle of described segmental baffle, and the top of described stifled stream plate is no more than 5/8 place of described segmental baffle radius.Described stifled stream plate arranges the position near the described segmental baffle center of circle, ensure that the tip position of the trigonum limited between adjacent described segmental baffle keeps circulation; The heat transfer property of heat exchanger under further raising unit pressure drop, enhanced heat exchange device conducts heat.
Preferably, wherein, the side of described stifled stream plate is connected with described segmental baffle by welding, buckle connection or thread connecting mode.Described stifled stream plate is welded and fixed and is connected on described segmental baffle, also removably can be connected on described segmental baffle by buckle or screw; Even at the edge groove of described segmental baffle, at the side of described stifled stream plate, lug, nib can be set respectively, described lug, nib be inserted in described groove and described stifled stream plate is connected with described segmental baffle.
Preferably, wherein, described stifled stream plate is at least one piece.Described stifled stream plate is such as two pieces of trapezoidal plates, the trigonum formed at lap connection two pieces of segmental baffles adds two pieces of trapezoidal plates, limit certain interval between described trapezoidal plate, further can strengthen the flowing of shell-side fluid one-piece auger, reach the object improving heat exchanger performance.
Preferably, wherein, described segmental baffle helical angle is 15 °.
The utility model at least comprises following beneficial effect:
1, the utility model is on the segmental baffle architecture basics of lap connection, the trigonum formed between the adjacent segmental baffle of part is blocked with stifled stream plate, relative to blocking deflection plate trigonum completely, overcome the installation question that trigonum sharp corner blocks up stream plate, be convenient to manufacture, install, and compare with blocking segmental baffle trigonum completely, not exclusively block the heat transfer property that trigonum effectively improves heat exchanger under unit pressure drop, enhanced heat exchange device conducts heat.
2, the utility model is on the basis studied spiral baffle heat exchanger heat transfer enhancement mechanism, by analyzing trigonum Flow-induced vibration and consideration helical baffles own structural characteristics between lap connection deflection plate, find that heat exchanger shell pass trigonum leakage current mainly occurs in heat exchanger central area, therefore by blocking other subregions, trigonum, have more science.
3, the utility model solves trigonum leakage current phenomenon between deflection plate that lap connection deflection plate produces due to reasons in structure, adds the helical flow state of spiral baffle heat exchanger local and entirety, effectively improves heat exchanger enhanced heat transfer performance.
Part is embodied by explanation below by other advantage of the present utility model, target and feature, part also will by research and practice of the present utility model by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of spiral baffle heat exchanger in prior art;
Fig. 2 is the partial structurtes schematic diagram of the spiral baffle heat exchanger of flow leakage prevention described in an embodiment of the present utility model;
Fig. 3 is the structural representation of the spiral baffle heat exchanger of flow leakage prevention described in an embodiment of the present utility model;
Fig. 4 is the partial structurtes schematic diagram of the spiral baffle heat exchanger of flow leakage prevention described in another embodiment of the present utility model;
Fig. 5 is the segmental baffle structural representation of the spiral baffle heat exchanger of flow leakage prevention described in an embodiment of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to description word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
Fig. 2 shows according to a kind of way of realization of the present utility model, has the helical duct formed by multiple segmental baffle 1 lap connection in the housing of the spiral baffle heat exchanger of described flow leakage prevention; Triangle leakage current district 4 is limited with between adjacent segmental baffle.Between adjacent segmental baffle 1, be provided with stifled stream plate 2, described stifled stream plate 2 extends to its curved edge 12 from the center of circle 11 of described segmental baffle 1, and the length of described stifled stream plate 2 is 5/8 of described segmental baffle 1 radius.Described stifled stream plate 2 is trapezoidal.The bottom 21 of described stifled stream plate 2 connects the center of circle 11 of described segmental baffle, and the upper base 22 of described stifled stream plate 2 is positioned at 5/8 place of described segmental baffle 1 radius.Described segmental baffle helical angle is 15 °.
As shown in Figure 3, in the housing 3 of the spiral baffle heat exchanger of flow leakage prevention described in the utility model, there is the helical duct formed by multiple segmental baffle 1 lap connection; Between adjacent segmental baffle 1, be provided with stifled stream plate 2, described stifled stream plate 2 is trapezoidal.The bottom 21 of described stifled stream plate 2 connects the center of circle 11 of described segmental baffle, and the upper base 22 of described stifled stream plate 2 is positioned at 5/8 place of described segmental baffle 1 radius.Described segmental baffle helical angle is 15 °.As shown in Figure 5, each spiralization cycle of the approximate helical curved surface of described helical duct such as comprises 4 pieces of described sector flat plates 1.Between the described segmental baffle of lap connection, 1 trigonum is not blocked completely.Described trapezoidal stifled stream plate 2 length is 5/8 (the trapezoidal dull and stereotyped right-angle side length of stifled stream plate length represents) of described segmental baffle 1 radius, deflection plate helical angle is 15 °, along with stifled stream plate 2 length increases, heat transfer coefficient of heat exchanger increases, but shell-side pressure drop also increases thereupon, when described trapezoidal stifled stream plate 2 length is 5/8 of described segmental baffle 1 radius, heat exchanger shell pass heat transfer coefficient increases by 7.5 ~ 8.5% when more not adding stifled stream plate, continue to increase stifled stream plate length, heat transfer coefficient of heat exchanger increases little.And when the described trapezoidal stifled stream plate length of all structures is 5/8 of described segmental baffle radius, heat exchanger combination property is maximum.
As shown in Figure 4, the described stifled stream plate 2 of the spiral baffle heat exchanger of flow leakage prevention described in the utility model is two pieces of trapezoidal flat boards, be separately positioned on bottom and the top of the trigonum that adjacent segmental baffle 1 is formed, thus further strengthening shell-side fluid one-piece auger flowing, reach the object improving heat exchanger performance.
Although embodiment of the present utility model is open as above, it is not restricted to listed in description and embodiment utilization.It can be applied to various applicable field of the present utility model completely.For those skilled in the art, can easily realize other amendment.Therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (6)
1. a spiral baffle heat exchanger for flow leakage prevention, is characterized in that, has the helical duct formed by multiple segmental baffle lap connection in the housing of described heat exchanger; Between adjacent segmental baffle, be provided with stifled stream plate, described stifled stream plate extends to its curved edge from the center of circle of described segmental baffle, and the length of described stifled stream plate is no more than 5/8 of described segmental baffle radius.
2. the spiral baffle heat exchanger of flow leakage prevention as claimed in claim 1, it is characterized in that, described stifled stream plate is trapezoidal or triangle.
3. the spiral baffle heat exchanger of flow leakage prevention as claimed in claim 2, it is characterized in that, the base of described stifled stream plate connects the center of circle of described segmental baffle, and the top of described stifled stream plate is no more than 5/8 place of described segmental baffle radius.
4. the spiral baffle heat exchanger of flow leakage prevention as claimed in claim 3, is characterized in that, the side of described stifled stream plate is connected by welding, buckle or thread connecting mode is connected with described segmental baffle.
5. the spiral baffle heat exchanger of flow leakage prevention as claimed in claim 3, it is characterized in that, described stifled stream plate is at least one piece.
6. the spiral baffle heat exchanger of flow leakage prevention as claimed in claim 1, it is characterized in that, described segmental baffle helical angle is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358643.3U CN204666021U (en) | 2015-05-27 | 2015-05-27 | A kind of spiral baffle heat exchanger of flow leakage prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358643.3U CN204666021U (en) | 2015-05-27 | 2015-05-27 | A kind of spiral baffle heat exchanger of flow leakage prevention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204666021U true CN204666021U (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520358643.3U Expired - Fee Related CN204666021U (en) | 2015-05-27 | 2015-05-27 | A kind of spiral baffle heat exchanger of flow leakage prevention |
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| CN (1) | CN204666021U (en) |
Cited By (5)
| 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 |
| CN106288879A (en) * | 2016-09-23 | 2017-01-04 | 佛山神威热交换器有限公司 | A kind of spiral baffle heat exchanger |
| CN106288928A (en) * | 2016-09-23 | 2017-01-04 | 佛山神威热交换器有限公司 | A kind of heat exchanger helical baffles |
| CN112197632A (en) * | 2020-10-22 | 2021-01-08 | 南京师范大学 | Temperature concentration gradient spiral baffle storage tank and application |
| CN115235284A (en) * | 2022-09-22 | 2022-10-25 | 无锡鼎邦换热设备股份有限公司 | Angle-adjustable four-division type spiral dislocation baffle shell type heat exchanger |
-
2015
- 2015-05-27 CN CN201520358643.3U patent/CN204666021U/en not_active Expired - Fee Related
Cited By (8)
| 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 |
| CN106288879A (en) * | 2016-09-23 | 2017-01-04 | 佛山神威热交换器有限公司 | A kind of spiral baffle heat exchanger |
| CN106288928A (en) * | 2016-09-23 | 2017-01-04 | 佛山神威热交换器有限公司 | A kind of heat exchanger helical baffles |
| CN106288928B (en) * | 2016-09-23 | 2018-05-08 | 佛山神威热交换器有限公司 | A kind of heat exchanger helical baffles |
| CN106288879B (en) * | 2016-09-23 | 2018-05-08 | 佛山神威热交换器有限公司 | A kind of spiral baffle heat exchanger |
| CN112197632A (en) * | 2020-10-22 | 2021-01-08 | 南京师范大学 | Temperature concentration gradient spiral baffle storage tank and application |
| CN115235284A (en) * | 2022-09-22 | 2022-10-25 | 无锡鼎邦换热设备股份有限公司 | Angle-adjustable four-division type spiral dislocation baffle shell type heat exchanger |
| CN115235284B (en) * | 2022-09-22 | 2022-12-09 | 无锡鼎邦换热设备股份有限公司 | Angle-adjustable four-division type spiral dislocation baffle shell type heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160527 |