CN105841543A - Oblique rod baffle type oblique flow heat exchanger - Google Patents
Oblique rod baffle type oblique flow heat exchanger Download PDFInfo
- Publication number
- CN105841543A CN105841543A CN201610376188.9A CN201610376188A CN105841543A CN 105841543 A CN105841543 A CN 105841543A CN 201610376188 A CN201610376188 A CN 201610376188A CN 105841543 A CN105841543 A CN 105841543A
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- China
- Prior art keywords
- heat exchanger
- oblique
- deflecting
- baffle
- baffling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides an oblique rod baffle type oblique flow heat exchanger. The oblique rod baffle type oblique flow heat exchanger comprises a shell, heat exchange pipes and rod baffles. The rod baffles are formed by welding baffling rings and oblique baffling pieces and are obliquely arranged in the shell. The arrangement manner of the rod baffles is changed, and therefore the baffling pieces are arranged in the axial direction, the oblique flowing time of fluid is prolonged, the disturbing degree of fluid flowing of a shell side is increased, the heat exchange area is fully utilized, and the heat exchange efficiency is improved. In addition, by means of oblique arrangement of the rod baffles, the fluid flowing speed of the shell side can change mildly, the fluid flowing resistance is effectively buffered and dispersed, and the pressure loss of the shell side is reduced.
Description
Technical field
The present invention relates to a kind of heat transmission equipment, specifically, relate to a kind of inclination baffling grating oblique stream heat exchanger.
Background technology
Shell-and-tube heat exchanger is classified by shell-side fluid flow regime, has laterally stream, longitudinally stream, spiral flow and oblique stream four kinds respectively.Oblique stream is a kind of novel shell-side fluid flow regime, the Dominant Facies of laterally stream and longitudinally stream heat exchange is combined by it, both the souring that laterally tube bank of stream heat exchanging is strong had been utilized, thinning boundary region augmentation of heat transfer, maintains again the longitudinally stream advantages such as heat exchanger heat-transfer performance is good, shell side resistance is little, enhanced fouling resistance is strong.
Oblique stream heat exchanger is mainly made up of heat exchanger tube and deflecting fence, deflecting fence is welded by the baffle tilted and baffling circle, patent of invention such as Application No. 200610128301.8, as illustrated in figs. ia and ib, its baffle 5 has semicircle, square or gear shape opening, having projection two-by-two between opening, opening size is more than the external diameter 0.25-0.5mm of heat exchanger tube 4, and the angle of inclination between this curtain baffle 5 and baffling circle 6 is 15-75 °.The present invention is obliquely installed because of baffle 5, compared to the heat exchanger of GENERAL TYPE, has preferable heat exchange property.
But find through test, although the baffle of inclination can make fluid obliquely flow, produce disturbance, but the time of fluid obliquely flow is short, fluid is oblique, and to wash away the degree of tube bank more weak, and the disturbance effect promoting for fluid is limited, and heat exchange efficiency is still within relatively low level.
In order to solve with present on problem, people are seeking a kind of preferably technical solution always.
Summary of the invention
It is an object of the invention to for the deficiencies in the prior art, thus a kind of design science is provided, extends fluid obliquely flow time, the level of disruption of raising shell-side fluid, reduction shell-side pressure drop, the deflecting fence tilting oblique stream heat exchanger of lifting heat exchange property.
To achieve these goals, the technical solution adopted in the present invention is: a kind of inclination baffling grating oblique stream heat exchanger, including housing, heat exchanger tube and deflecting fence, deflecting fence is welded by the baffle of baffling circle and inclination, and described deflecting fence tilts to be arranged in described housing.
Described on base, the incline direction of the baffle on each deflecting fence is consistent with the incline direction of this deflecting fence.
Described on base, the incline direction of the baffle on each deflecting fence is contrary with the incline direction of this deflecting fence.
Described on base, being arranged in described housing of described deflecting fence uniform parallel.
On base described, two deflecting fences of arbitrary neighborhood being arranged in described housing symmetrically.
Described on base, the baffle on two deflecting fences of arbitrary neighborhood be arranged in parallel.
Described on base, the baffle on two deflecting fences of arbitrary neighborhood is symmetrical arranged.
Described on base, the angle angle between described deflecting fence and the axis of heat-exchanging tube bundle is 20 ° ~ 80 °.
Described on base, the angle angle between baffle and the axis of heat-exchanging tube bundle is 15 ~ 75 °.
Hinge structure of the present invention has prominent substantive distinguishing features and significantly progress, specifically, the invention have the advantages that
1, tilt arrangement due to deflecting fence so that baffle arranges vertically, extend the fluid obliquely flow time, increase the oblique degree washing away tube bank of shell-side fluid, improve the level of disruption of fluid flowing, make full use of heat exchange area, thus effectively improve heat exchanger heat-transfer performance.
2, deflecting fence tilts arrangement, is arranged vertically by baffle, makes the change of shell-side fluid flowing velocity mild, and dispersing fluid flow resistance reduces shell-side pressure drop.
Accompanying drawing explanation
Fig. 1 a and Fig. 1 b is the structural representation of oblique stream heat exchanger in background technology.
Fig. 2 a, Fig. 2 b and Fig. 2 c are the structural representations tilting baffling grating oblique stream heat exchanger in the embodiment of the present invention 1.
Fig. 3 is the structural representation tilting baffling grating oblique stream heat exchanger described in the embodiment of the present invention 2.
Fig. 4 is the structural representation tilting baffling grating oblique stream heat exchanger described in the embodiment of the present invention 3.
Fig. 5 is the structural representation tilting baffling grating oblique stream heat exchanger described in the embodiment of the present invention 4.
In figure: 1. heat exchanger tube；2. deflecting fence；3. baffle；4. heat exchanger tube；5. baffle；6. deflecting fence.
Detailed description of the invention
Below by detailed description of the invention, technical scheme is described in further detail.
Embodiment 1
As shown in Fig. 2 a, Fig. 2 b and Fig. 2 c, a kind of inclination baffling grating oblique stream heat exchanger, including housing, heat exchanger tube 1 and deflecting fence 2, deflecting fence is welded by the baffle 3 of baffling circle and inclination, described deflecting fence 2 tilts to be arranged in described housing, angle of inclination is 70 °, described baffle 3 is arranged vertically, baffle 3 on two deflecting fences 2 of arbitrary neighborhood be arranged in parallel, the incline direction of the baffle 3 on each deflecting fence 2 is consistent with the incline direction of this deflecting fence 2, and the angle angle between baffle 3 and the axis of heat-exchanging tube bundle is 30 °.Being arranged in described housing of described deflecting fence 2 uniform parallel, the spacing of two adjacent deflecting fences 2 is 70mm.
When deflecting fence 2 tilts arrangement, baffle 3 arranges vertically, increases the oblique degree washing away tube bank of shell-side fluid, improves the level of disruption of fluid flowing, thus is effectively improved the heat transfer property of heat exchanger.
Under identical heat exchanger volume, deflecting fence parallel arrangement not only further increases the level of disruption of fluid, but also can put into more deflecting fence 2, and density increases, and heat exchange property promotes further.
When baffle 3 incline direction is identical with deflecting fence 2 incline direction, the shell-side fluid disturbance time increases, and level of disruption increases, and increases heat exchange efficiency.
Embodiment 2
As it is shown on figure 3, the present embodiment is with the difference of embodiment 1: the incline direction of the baffle 3 on each deflecting fence 2 is contrary with the incline direction of this deflecting fence 2.Angle angle between described deflecting fence 2 and the axis of heat-exchanging tube bundle is 60 °, and the angle angle between baffle 3 and the axis of heat-exchanging tube bundle is 60 °.When baffle 3 incline direction is contrary with deflecting fence 2 incline direction, baffle 3 arranges at shell side, effective buffering dispersion flows resistance, reduces shell-side pressure drop.
By embodiment 1 and embodiment 2, in the case of heat transfer efficiency reaches to meet, baffle 3 can be made contrary with deflecting fence 2 incline direction, reduce pressure drop；On the contrary, in the case of also having surplus such as pump power, baffle 3 can be made identical with the incline direction of deflecting fence 2, it is allowed in the case of somewhat improving the pressure loss, improve heat exchange property.
Embodiment 3
As shown in Figure 4, the present embodiment is with the difference of embodiment 1: two deflecting fences 2 of arbitrary neighborhood being arranged in described housing symmetrically, the incline direction of the baffle 3 on each deflecting fence 2 is contrary with the incline direction of this deflecting fence 2.Angle angle between described deflecting fence 2 and the axis of heat-exchanging tube bundle is 60 °, and the angle angle between baffle 3 and the axis of heat-exchanging tube bundle is 60 °.
Symmetrical deflecting fence 2 affects the flow direction of fluid on the whole, by the cooperation of baffle 3, forms more complicated flow path, for lifting fluid level of disruption advantageously.
Embodiment 4
As it is shown in figure 5, the difference of the present embodiment above example is: the baffle 3 on two deflecting fences 2 of arbitrary neighborhood is symmetrical arranged.From the flow direction of local influence fluid, symmetrical baffle 6 can cause the flow path of fluid more complicated, tortuous, effectively increases the level of disruption of fluid, improving heat exchanging efficiency.
Conventional and novel two kinds of oblique stream heat exchanger shell pass fluids flowing and heat-transfer character are simulated research.Result shows, deflecting fence tilts the heat exchanger arranged can be obviously improved the heat exchange property of shell-side fluid.Shell side flow is under the operating mode of 3.6～8.0kg/s, and deflecting fence tilts the heat exchanger of arrangement and is respectively increased 7.41%～7.66% and 6.17%～6.45% compared with heat transfer coefficient of heat exchanger and the combination property of deflecting fence vertical arrangement.Therefore, under identical heat exchanger volume, the heat exchanger using deflecting fence to tilt arrangement can increase heat exchange amount, saves the energy；Under same heat transfer effect, the heat exchanger using deflecting fence to tilt arrangement can save volume.In actual design, deflecting fence can be tilted arrangement, reduce equipment size, reduce heat exchanger cost, improve utilization rate of equipment and installations, save the energy.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit；Although being described in detail the present invention with reference to preferred embodiment, those of ordinary skill in the field are it is understood that still can modify to the detailed description of the invention of the present invention or portion of techniques feature is carried out equivalent；Without deviating from the spirit of technical solution of the present invention, it all should be contained in the middle of the technical scheme scope that the present invention is claimed.
Claims (9)
1. tilting a baffling grating oblique stream heat exchanger, including housing, heat exchanger tube and deflecting fence, deflecting fence is welded by the baffle of baffling circle and inclination, it is characterised in that: described deflecting fence tilts to be arranged in described housing.
Inclination baffling grating the most according to claim 1 oblique stream heat exchanger, it is characterised in that: the incline direction of the baffle on each deflecting fence is consistent with the incline direction of this deflecting fence.
Inclination baffling grating the most according to claim 1 oblique stream heat exchanger, it is characterised in that: the incline direction of the baffle on each deflecting fence is contrary with the incline direction of this deflecting fence.
4. according to the inclination baffling grating oblique stream heat exchanger described in any one of claim 1-3, it is characterised in that: being arranged in described housing of described deflecting fence uniform parallel.
5. according to the inclination baffling grating oblique stream heat exchanger described in any one of claim 1-3, it is characterised in that: two deflecting fences of arbitrary neighborhood being arranged in described housing symmetrically.
6. according to the inclination baffling grating oblique stream heat exchanger described in any one of claim 1-5, it is characterised in that: the baffle on two deflecting fences of arbitrary neighborhood be arranged in parallel.
7. according to the inclination baffling grating oblique stream heat exchanger described in any one of claim 1-5, it is characterised in that: the baffle on two deflecting fences of arbitrary neighborhood is symmetrical arranged.
Deflecting fence tilting the most according to claim 1 oblique stream heat exchanger, it is characterised in that: the angle angle between described deflecting fence and the axis of heat-exchanging tube bundle is 20 ° ~ 80 °.
9. according to the deflecting fence tilting oblique stream heat exchanger described in Claims 2 or 3, it is characterised in that: the axis of baffle and heat-exchanging tube bundle between angle angle be 15 ~ 75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610376188.9A CN105841543B (en) | 2016-05-31 | 2016-05-31 | Tilt the oblique stream heat exchanger of baffling grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610376188.9A CN105841543B (en) | 2016-05-31 | 2016-05-31 | Tilt the oblique stream heat exchanger of baffling grating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105841543A true CN105841543A (en) | 2016-08-10 |
| CN105841543B CN105841543B (en) | 2018-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610376188.9A Active CN105841543B (en) | 2016-05-31 | 2016-05-31 | Tilt the oblique stream heat exchanger of baffling grating |
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| Country | Link |
|---|---|
| CN (1) | CN105841543B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440882A (en) * | 2016-11-24 | 2017-02-22 | 郑州大学 | Trapezoidal tilted baffle plate shell and tube type heat exchanger |
| CN107726897A (en) * | 2017-11-17 | 2018-02-23 | 四川沃姆斯科技有限公司 | A kind of shell side formula condenser |
| CN113983857A (en) * | 2021-10-28 | 2022-01-28 | 淮阴工学院 | Swing type curtain baffle plate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944585A (en) * | 1982-09-06 | 1984-03-13 | Toshiba Corp | Heat exchanger |
| JP2000283666A (en) * | 1999-03-31 | 2000-10-13 | Nissan Diesel Motor Co Ltd | Egr cooler |
| CN2672595Y (en) * | 2002-11-04 | 2005-01-19 | 宋小平 | Inclined baffle table still heat exchanger |
| CN1987325A (en) * | 2006-11-30 | 2007-06-27 | 郑州大学 | Inclined flow tube shell type heat exchanger |
| CN201561682U (en) * | 2009-12-04 | 2010-08-25 | 山东美陵化工设备股份有限公司 | Vertical condenser with double inclined baffle plates |
| CN103453788A (en) * | 2013-08-30 | 2013-12-18 | 南京威安新材料科技有限公司 | Gas plate type heat exchanger |
| CN205940263U (en) * | 2016-05-31 | 2017-02-08 | 郑州大学 | Heat exchanger is flowed in slant of slope deflecting fence formula |
-
2016
- 2016-05-31 CN CN201610376188.9A patent/CN105841543B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944585A (en) * | 1982-09-06 | 1984-03-13 | Toshiba Corp | Heat exchanger |
| JP2000283666A (en) * | 1999-03-31 | 2000-10-13 | Nissan Diesel Motor Co Ltd | Egr cooler |
| CN2672595Y (en) * | 2002-11-04 | 2005-01-19 | 宋小平 | Inclined baffle table still heat exchanger |
| CN1987325A (en) * | 2006-11-30 | 2007-06-27 | 郑州大学 | Inclined flow tube shell type heat exchanger |
| CN201561682U (en) * | 2009-12-04 | 2010-08-25 | 山东美陵化工设备股份有限公司 | Vertical condenser with double inclined baffle plates |
| CN103453788A (en) * | 2013-08-30 | 2013-12-18 | 南京威安新材料科技有限公司 | Gas plate type heat exchanger |
| CN205940263U (en) * | 2016-05-31 | 2017-02-08 | 郑州大学 | Heat exchanger is flowed in slant of slope deflecting fence formula |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440882A (en) * | 2016-11-24 | 2017-02-22 | 郑州大学 | Trapezoidal tilted baffle plate shell and tube type heat exchanger |
| CN106440882B (en) * | 2016-11-24 | 2019-01-01 | 郑州大学 | The trapezoidal inclined baffle shell-and-tube heat exchanger of class |
| CN107726897A (en) * | 2017-11-17 | 2018-02-23 | 四川沃姆斯科技有限公司 | A kind of shell side formula condenser |
| CN113983857A (en) * | 2021-10-28 | 2022-01-28 | 淮阴工学院 | Swing type curtain baffle plate |
| CN113983857B (en) * | 2021-10-28 | 2022-07-29 | 淮阴工学院 | Swing type curtain baffle plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105841543B (en) | 2018-09-21 |
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