CN108088285A - A kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube - Google Patents
A kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube Download PDFInfo
- Publication number
- CN108088285A CN108088285A CN201711341241.2A CN201711341241A CN108088285A CN 108088285 A CN108088285 A CN 108088285A CN 201711341241 A CN201711341241 A CN 201711341241A CN 108088285 A CN108088285 A CN 108088285A
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- Prior art keywords
- heat exchanger
- concave surface
- tube
- exchanger tube
- full
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- 239000007921 spray Substances 0.000 title claims abstract description 38
- 239000011148 porous material Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 9
- 238000001727 in vivo Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 26
- 238000010586 diagram Methods 0.000 description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F2001/027—Tubular elements of cross-section which is non-circular with dimples
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of shell-and-tube heat exchangers of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube, including cylinder, tube sheet, full-circle spray pattern orifice plate and concave surface heat exchanger tube, the concave surface heat exchanger tube circumferentially has the heat exchanger tube of multiple hemispherical depressions for outer surface, the spherical concave design of concave surface heat exchange pipe external surface upper half, when extratubal fluid flows through hemispherical depression, multiple small whirlpools can be formed, enhance the outer heat convection of pipe, it is formed and the corresponding hemispherical projections in pipe appearance concave surface in pipe internal surface, the hemispherical projections of pipe internal surface generate periodically disturbance to nearly wall fluid in pipe, destroy the flow boundary layer and heat transfer boundary layer of fluid, it is smaller in Reynolds number, turbulent flow can also be formed, improve convection transfer rate during low flow velocity.Simultaneously under identical actual internal area, heat transfer area increase improves rate of heat transfer.The present invention is suitable for low flow velocity fluid heat transfer, can be applied in industrial heat exchange equipment, has extensive market application foreground.
Description
Technical field
The invention belongs to heat-transfer equipment fields, and in particular to a kind of shell-and-tube of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube changes
Hot device.
Background technology
Traditional shell-and-tube heat exchanger structure mainly by housing, heat exchanger tube, Controlled urbanplanning, both ends tube sheet, both ends end socket,
Shell side and tube side inlet and outlet are taken over and are connected and composed jointly, and heat exchanger tube is the smooth pipe in surface, and the supporter between managing is usually to bend
Shape baffle plate, shell-side fluid are flowed in serpentine, easily generate flow blind angle, heat transfer area can not be fully utilized, thus shell side
Heat transfer coefficient is low, easy fouling, fluid resistance are big.Documents 1 disclose square pore full-circle spray pattern support plate substitution arch baffling
The shell-and-tube heat exchanger of plate, Application No. 2017214306435, the square pore full-circle spray pattern orifice plate substitution tradition of the Patent design
The shell-and-tube heat exchanger of segmental baffle can cause shell-side fluid no longer to flow by traditional serpentine route but vertically, disappear
Except shell-side fluid flow dead zone, fluid transversal flow is avoided to restrain and generate induced vibration, and can be caused in Tube Sheet of Heat Exchanger
Outer fluid is in pure counter-current flow, increases heat transfer temperature difference, improves heat transfer efficiency to a certain extent, but, due to the prior art
In heat exchanger tube be the smooth pipe in surface, fluid convection heat transfer coefficient is low inside and outside pipe.
The content of the invention
In order to overcome deficiency of the prior art, the present invention devises a kind of pipe of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube
Shell heat exchanger, the spherical concave design of outer surface circumference upper half of the concave surface heat exchanger tube, when extratubal fluid flows through hemispherical
During recess, multiple small whirlpools can be formed, the outer heat convection of pipe is enhanced, can be formed in pipe internal surface corresponding with pipe appearance recess
Hemispherical projections, the hemispherical projections of pipe internal surface generate periodically disturbance to nearly wall fluid in pipe, destroy the stream of fluid
Moving boundary layer and heat transfer boundary layer, it is smaller in Reynolds number, turbulent flow can also be formed, in pipe when improving low flow velocity
Convection transfer rate.Simultaneously under identical actual internal area, heat transfer area increase, and improve rate of heat transfer.
The present invention solve its technical problem solution be：A kind of shell-and-tube of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube
Heat exchanger, including cylinder, tube sheet, full-circle spray pattern orifice plate, the tube sheet is fixedly connected with the both ends of cylinder, and full-circle spray pattern hole is set in cylinder
Plate, the size of the full-circle spray pattern orifice plate are adapted with cylinder internal diameter, and multiple square pores, the pipe are set in the full-circle spray pattern orifice plate
Shell heat exchanger, which further includes, is located at the in vivo concave surface heat exchanger tube of cylinder, and the concave surface heat exchanger tube circumferentially has multiple for outer surface
The heat exchanger tube of hemispherical depression, the inner surface of the concave surface heat exchanger tube have with the corresponding hemispherical projections in outer surface, it is described
The axis of concave surface heat exchanger tube is parallel, and both ends are fixed between tube sheet, and the full-circle spray pattern orifice plate is described perpendicular to concave surface heat exchanger tube
The length of side of square pore is equal with the outer diameter of concave surface heat exchanger tube, and concave surface heat exchanger tube is through square pore, four of square pore
There is a gap between angle and concave surface heat exchange pipe outer wall, it is recessed that the contact point of square pore and concave surface heat exchanger tube is located at tube outer surface hemispherical
On sunken circumference.
As being further improved for above-mentioned technical proposal, the concave surface heat exchanger tube is by metal material pipe by being squeezed into
Shape.
As being further improved for above-mentioned technical proposal, the pipe internal surface hemispherical projections equidistantly distributed.
As being further improved for above-mentioned technical proposal, a diameter of concave surface heat exchanger tube of the pipe internal surface hemispherical projections
0.2~0.4 times of outer diameter.
As being further improved for above-mentioned technical proposal, the square pore equidistantly distributed.
As being further improved for above-mentioned technical proposal, the full-circle spray pattern orifice plate is plastic material component or rigid material structure
Part.
The beneficial effects of the invention are as follows：The present invention provides a kind of pipe shell type heat exchange of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube
Device, the outer surface circle distribution of the concave surface heat exchanger tube have multiple hemispherical depressions, the contact with concave surface heat exchanger tube of square pore
Point is on the circumference of tube outer surface hemispherical depression, the design of hemispherical depression, when extratubal fluid flows through hemispherical depression,
Multiple small whirlpools can be formed, enhance the outer heat convection of pipe.It can be formed in heat exchange pipe internal surface corresponding with pipe appearance concave surface
One circle hemispherical projections, the hemispherical projections of pipe internal surface generate periodically disturbance to nearly wall fluid in pipe, destroy fluid
Flow boundary layer and heat transfer boundary layer, it is smaller in Reynolds number, turbulent flow can also be formed, improves pair during low flow velocity
Flow the coefficient of heat transfer.Simultaneously under identical actual internal area, heat transfer area increase improves rate of heat transfer.The present invention is suitable for
Low flow velocity fluid heat transfer can be applied in various industrial heat exchange equipment, have extensive market application foreground.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is the part of the embodiment of the present invention rather than all implements
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs
Scheme and attached drawing.
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the partial cutaway view of the present invention；
Fig. 3 is the structure diagram of square pore full-circle spray pattern orifice plate in the present invention；
Fig. 4 is the structure diagram of concave surface heat exchanger tube in the present invention；
Fig. 5 is the sectional view of concave surface heat exchanger tube in the present invention；
Reference numeral：
1st, cylinder；2nd, tube sheet；3rd, concave surface heat exchanger tube；4th, full-circle spray pattern orifice plate；301st, hemispherical depression；401st, square pore.
Specific embodiment
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and attached drawing clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright part of the embodiment rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art is not paying
The other embodiment obtained on the premise of creative work, belongs to the scope of protection of the invention.In addition, be previously mentioned in text
All connection/connection relations not singly refer to component and directly connect, and refer to be added deduct by adding according to specific implementation situation
Few couple auxiliary, to form more preferably coupling structure.Each technical characteristic in the invention, in not conflicting conflict
Under the premise of can be with combination of interactions.
With reference to Fig. 1-5, a kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube, including cylinder 1, tube sheet 2,
Full-circle spray pattern orifice plate 4, the tube sheet 2 are fixedly connected with the both ends of cylinder 1, and full-circle spray pattern orifice plate 4, the full-circle spray pattern hole are set in cylinder 1
The size of plate 4 is adapted with 1 internal diameter of cylinder, and multiple square pores 401, the pipe shell type heat exchange are set in the full-circle spray pattern orifice plate 4
Device further includes the concave surface heat exchanger tube 3 being located in cylinder 1, and the concave surface heat exchanger tube 3 circumferentially has multiple hemisphere for outer surface
The heat exchanger tube of shape recess 301, when extratubal fluid flows through hemispherical depression 301, can form multiple small whirlpools, it is right outside pipe to enhance
Stream heat exchange, the inner surface of the concave surface heat exchanger tube 3 have and the corresponding hemispherical projections in outer surface, the pipe internal surface spherical shape
Protrusion generates periodically disturbance to nearly wall fluid in pipe, the flow boundary layer and heat transfer boundary layer of fluid is destroyed, in Reynolds number
In the case of smaller, turbulent flow can also be formed, improves convection transfer rate during low flow velocity；The axis of the concave surface heat exchanger tube 3
Line is parallel, and both ends are fixed between tube sheet 2, and the full-circle spray pattern orifice plate 4 is perpendicular to concave surface heat exchanger tube 3, the square pore 401
The length of side it is equal with the outer diameter of concave surface heat exchanger tube 3, and concave surface heat exchanger tube 3 is through square pore 401, four of square pore 401
There is gap between 3 outer wall of angle and concave surface heat exchanger tube so that jet stream can be generated when shell-side fluid flows through gap or even forms turbulent flow,
So as to enhancing heat transfer, heat transfer efficiency is improved；Also have when shell-side fluid flows through square pore 401 to concave surface heat exchanger tube 3 and wash away
And automatic cleaning action, it can effectively avoid 3 fouling of concave surface heat exchanger tube and underdeposit corrosion；In addition, square pore 401 and concave surface heat exchanger tube
3 contact point is located on the circumference of tube outer surface hemispherical depression 301, can play effective supporting role.
Preferred embodiment is further used as, the concave surface heat exchanger tube 3 is molding by extrusion by metal material pipe, work
Skill is simple, and the intensity of the tubing shaped and toughness are also improved.
Be further used as preferred embodiment, a diameter of concave surface heat exchange pipe outside diameter of the hemispherical projections 0.2~
0.4 times.
Preferred embodiment is further used as, the hemispherical projections equidistantly distributed may be such that in concave surface heat exchanger tube 3
The flowing of outer fluid is uniformly distributed.
Preferred embodiment is further used as, it is described in order to avoid causing the in vivo flow distribution of cylinder cover uneven
Square 401 equidistantly distributed of pore.
It is further used as preferred embodiment, the full-circle spray pattern orifice plate 4 is plastic material component or rigid material component,
When the shell-side fluid for flowing through square pore 401 is normal temperature state, the full-circle spray pattern orifice plate 4 is plastic material component, uses modeling
Property material members, and can effectively reduce cost；It is described whole when the shell-side fluid for flowing through square pore 401 is higher temperatures state
Circular orifice 4 is rigid material component.
The better embodiment of the present invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent modifications on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (6)
1. a kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube, including cylinder, tube sheet, full-circle spray pattern orifice plate, institute
It states tube sheet to be fixedly connected with the both ends of cylinder, full-circle spray pattern orifice plate, the size and cylinder internal diameter of the full-circle spray pattern orifice plate is set in cylinder
It is adapted, multiple square pores is set in the full-circle spray pattern orifice plate, it is characterised in that：The shell-and-tube heat exchanger, which further includes, is located at cylinder
In vivo concave surface heat exchanger tube, the concave surface heat exchanger tube circumferentially have the heat exchanger tube of multiple hemispherical depressions, institute for outer surface
State concave surface heat exchanger tube inner surface have with the corresponding hemispherical projections in outer surface, the axis of the concave surface heat exchanger tube is parallel,
And both ends are fixed between tube sheet, the full-circle spray pattern orifice plate is perpendicular to concave surface heat exchanger tube, the length of side of the square pore and concave surface
The outer diameter of heat exchanger tube is equal, and concave surface heat exchanger tube is through square pore, four angles and concave surface heat exchange pipe outer wall of square pore it
Between have a gap, the contact point of square pore and concave surface heat exchanger tube is located on the circumference of tube outer surface hemispherical depression.
2. a kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube according to claim 1, feature exist
In：The concave surface heat exchanger tube is molding by extrusion by metal material pipe.
3. a kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube according to claim 1, feature exist
In：0.2~0.4 times of a diameter of concave surface heat exchange pipe outside diameter of the hemispherical projections.
4. a kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube according to claim 1, feature exist
In：The hemispherical projections equidistantly distributed.
5. a kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube according to claim 1, feature exist
In：The square pore equidistantly distributed.
6. a kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube of side according to claim 1, feature
It is：The full-circle spray pattern orifice plate is plastic material component or rigid material component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341241.2A CN108088285A (en) | 2017-12-14 | 2017-12-14 | A kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341241.2A CN108088285A (en) | 2017-12-14 | 2017-12-14 | A kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108088285A true CN108088285A (en) | 2018-05-29 |
Family
ID=62176316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711341241.2A Pending CN108088285A (en) | 2017-12-14 | 2017-12-14 | A kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support concave surface heat exchanger tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108088285A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443053A (en) * | 2018-10-30 | 2019-03-08 | 佛山科学技术学院 | A kind of shell-and-tube heat exchanger |
| CN110849184A (en) * | 2019-11-13 | 2020-02-28 | 佛山科学技术学院 | Full-cyclone shell-and-tube heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060048921A1 (en) * | 2004-09-08 | 2006-03-09 | Usui Kokusai Sangyo Kaisha Limited | Fin structure, heat-transfer tube having the fin structure housed therein, and heat exchanger having the heat-transfer tube assembled therein |
| CN101566445A (en) * | 2009-06-01 | 2009-10-28 | 西安交通大学 | Dimpled enhanced heat exchange tube |
| CN104913663A (en) * | 2014-03-12 | 2015-09-16 | 中国科学院广州能源研究所 | Tube shell pass volume-adjustable longitudinal turbulence oil cooler |
| CN107255426A (en) * | 2017-08-11 | 2017-10-17 | 中冶焦耐(大连)工程技术有限公司 | The deflection element and its method of work of a kind of shell-and-tube heat exchanger |
-
2017
- 2017-12-14 CN CN201711341241.2A patent/CN108088285A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060048921A1 (en) * | 2004-09-08 | 2006-03-09 | Usui Kokusai Sangyo Kaisha Limited | Fin structure, heat-transfer tube having the fin structure housed therein, and heat exchanger having the heat-transfer tube assembled therein |
| CN101566445A (en) * | 2009-06-01 | 2009-10-28 | 西安交通大学 | Dimpled enhanced heat exchange tube |
| CN104913663A (en) * | 2014-03-12 | 2015-09-16 | 中国科学院广州能源研究所 | Tube shell pass volume-adjustable longitudinal turbulence oil cooler |
| CN107255426A (en) * | 2017-08-11 | 2017-10-17 | 中冶焦耐(大连)工程技术有限公司 | The deflection element and its method of work of a kind of shell-and-tube heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443053A (en) * | 2018-10-30 | 2019-03-08 | 佛山科学技术学院 | A kind of shell-and-tube heat exchanger |
| CN110849184A (en) * | 2019-11-13 | 2020-02-28 | 佛山科学技术学院 | Full-cyclone shell-and-tube heat exchanger |
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Application publication date: 20180529 |