CN106705731A - Axial locking plate type pin-fin type finned tube - Google Patents
Axial locking plate type pin-fin type finned tube Download PDFInfo
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- CN106705731A CN106705731A CN201611226707.XA CN201611226707A CN106705731A CN 106705731 A CN106705731 A CN 106705731A CN 201611226707 A CN201611226707 A CN 201611226707A CN 106705731 A CN106705731 A CN 106705731A
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- Prior art keywords
- pin
- tube
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- clamp
- fin
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Classifications
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
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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
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
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- 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 relates to an axial locking plate type pin-fin type finned tube. The axial locking plate type pin-fin type finned tube comprises a base tube, a pin tube unit and a locking plate unit. The pin tube unit is composed of left and right units and the units are arranged regularly according to a certain pitch and are axially arranged in parallel along the outer wall of the base tube; the locking plate unit is composed of left and right same rectangular locking plates; the pin tube unit and the locking plate unit are connected through holes by way of locking and sleeving or welding. The pin-fin type finned tube provided by the invention can effectively eliminate the initial region of dust stratification, obviously reduce the flowing stagnation region on the leeward side of the finned tube and extremely reduce the dust accumulated on the side face and the base tube of the fin of the flowing stagnation region; meanwhile, a heat transfer effect of the pin-fin type finned tube in operation is effectively improved. The locking plates with holes can be obtained by punch forming, so that automatic production is easily realized.
Description
Technical field
The present invention relates to a kind of pin wing finned tube, the pin wing finned tube of more particularly to a kind of axial clamp plate type, it is fitted
For various types of heat exchange of the industries such as power, oil, chemical industry, refrigeration, metallurgy and firing equipment.
Background technology
With the sustained and rapid development of China's economy, energy supply anxiety problem becomes increasingly conspicuous, and energy-conservation, emission reduction, consumption reduction are
Inevitable requirement as China's economy and social development.Heat exchanger as power, oil, chemical industry, refrigeration, metallurgy or even aviation/
The important component of the industrial process such as rocket, its safe and highly efficient operation is significant.In various heat transmission equipments, by wing
It is common augmentation of heat transfer mode that piece increases heat exchange area.
Pin wing finned tube exchanger is one kind of shell and tube exchanger, and Needle fin tube is a kind of discontinuous finned tube, and it is
Burn-on a series of small columns on base tube surface, gained the name because of the cylinder such as needle-like that base tube surface is welded.Study and put into practice table
Bright pin wing finned tube can dramatically increase heat exchange area, increase flue gas flow area, reduce cigarette speed, reduce dust stratification and abrasion.
Although but it has good anti-dust stratification ability and abrasionproof performance, under containing grey air-flow, due to fluid viscous effect in itself
With the presence of adverse pressure gradient, flowing is necessarily separated, and forms vortex stagnation region in finned tube leeward side, so that containing grey gas
Ash particle in stream is constantly accumulated in leeward side, causes local a large amount of dust stratifications, has a strong impact on finned tube heat transfer efficiency and heat exchanger
Safe and highly efficient operation.By the structural analysis to pin wing finned tube, it has been found that containing grey air-flow by pin wing fin
Guan Shi, the local space between every group of relative pin fin is almost disturbed without gas, and the gas flowing of the local space is approximate
In plane flowing, ash particle is difficult to be flowed between different fins, has been further exacerbated by the formation of dust stratification.Therefore, by the way that take must
The structure optimization wanted, reduces vortex stagnation region area so as to reduce dust stratification, is a kind of effective method.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of pin wing finned tube of axial clamp plate type, lead to
Cross entirety and install clamp additional, reduce flow separation, reduce vortex stagnation region area, so as to mitigate pin wing finned tube leeward side product
Ash, improves the ruuning situation of heat exchanger.
The present invention to achieve the above object, the technical scheme for being used for：
A kind of pin wing finned tube of axial clamp plate type, including base tube 1, pin-fin tube group 3 and clamp group 4；The pin-fin tube
Group 3 is constituted by left and right two groups, and every group includes multiple row according to preset pitch arrangement, along the pin of the axially in parallel arrangement of outer wall of base tube 1
Wing finned tube；The clamp group 4 is made up of left and right two groups of identicals rectangle clamp, positioned at the leeward side of pin-fin tube group 3；It is described
Pin-fin tube group 3, by hole 2, is connected with clamp group 4 in the way of cutting ferrule or welding,.
Described base tube 1 is any one in pipe, elliptical tube and oval pipe.
The clamp group 4 is to be provided with hole 2 according to the pitch of pin-fin tube group 3 on base tube 1 at its edge along its length, or
According to the pitch perforate 2 of pin-fin tube group 3 on base tube 1 in the middle of it goes up in the width direction, one-shot forming is realized in hole 2 by punching press；
It is shaped as agreeing with pin according to the hole 2 that the pitch of pin-fin tube group 3 on base tube 1 is provided with one side edge along its length of clamp group 4
The semicircle or half H-shaped of the shape of nail pipe group 3, are provided with the both sides edge of clamp group 4 according to the pitch of pin-fin tube group 3 on base tube 1
Hole 2 be shaped as agreeing with the semicircle of the shape of pin-fin tube group 3, according to pin on base tube 1 in the middle of clamp group 4 goes up in the width direction
The hole 2 that the pitch of pipe group 3 is provided with is shaped as agreeing with the circle of the shape of pin-fin tube group 3；If clamp group 4 is opened in the middle of going up in the width direction
Hole 2, its unilateral edge is provided with semi-circular recesses or does not slot.
The clamp group 4 is fastened in along base tube with the clamp that the type of attachment of pin-fin tube group 3 is two one side edge perforate 2
On same row's pin wing finned tube of 1 axial direction；Or the clamp of both sides edge perforate 2 is stuck in two rows along the axial direction of base tube 1
Between pin wing finned tube；Or the clamp of central aperture 2 is directly fastened in along same row's pin wing finned tube of the axial direction of base tube 1
On.
If the clamp of both sides edge perforate 2 is stuck between two row's pin-fin tubes along the axial direction of base tube 1, flowed with flue gas
Direction is positive apparent direction, institute's card position between the second from the bottom of pin-fin tube group 3, three pin wing finned tubes, or in pin-fin tube
Between 3 last of group, two pin wing finned tubes, as long as that is, 4 card positions of clamp group are no more than base tube 1 and direction of flow
Vertical Central Symmetry position.
The area of the perforate 2 is more than pin wing fin tube section, and both coordinate for gap；For the clamp group 4, with institute
, used as clamp reference direction, its incline direction is with gas come the side of stream for the straight line parallel with the axial line of base tube 1 at cutting ferrule pin-fin tube group 3
To the angle of attack be 10 °~80 °.
Left and right two groups of the clamp group 4 are the side that one or more are arranged in flue gas outflow, according to each group of clamp
Number, formed double card plate pin wing finned tube and many clamp pin wing finned tubes.
The arrangement mode of described pin-fin tube group 3 is divided into in-line arrangement, axially or axially wrong perpendicular to base tube 1 along base tube 1
Row are arranged and arranged along the Unequal distance on flow of flue gas direction.
Described clamp group 4 and pin-fin tube group 3 is in a symmetrical arrangement on base tube 1.
It is positive apparent direction with flue gas direction of flow, when there is viscous ash deposit, the pin-fin tube group 3 and flue gas direction of flow
Left and right two groups of near-end between be welded with along the axially placed rectangular slab 5 of base tube 1, to prevent from being produced containing grey airflow scouring front
Raw dust stratification, wherein rectangular slab 5 are welded on several supports 6, and the base of rectangular slab 5 and the surface clear distance of base tube 1 are more than
5mm, support is directly with complete penetraction and fusion in welding structure welding on base tube 1.
Compared with prior art, the invention has the advantages that：
(1) by installing clamp additional, breaching traditional long direction eddy generator can only be subordinated to the thinking of fin surface to the present invention
Limitation, this clamp is located at finned tube leeward side, and to internal recessing, rather than the generally longitudinally outside arrangement of eddy generator, so
Dust stratification sintering can effectively be eliminated, hence it is evident that reduce the flowing stagnation region of finned tube leeward side, and greatly reduce flowing stagnation region
The fin side in domain and base tube dust stratification.
(2) present invention can effectively strengthen the heat-transfer effect of pin wing finned tube, relative to traditional pin wing finned tube,
Its heat transfer coefficient can improve more than 20%.
(3) present invention carries out structure innovation to original pin wing fin, realizes that pin wing finned tube is leeward by clamp
Side is vortexed the improvement of stagnation region.This pin wing fins set of the present invention, can quickly be obtained by punch forming, it is easy to
Realize automated production.
(4) present invention combination industrial practice, proposes bilateral fluting, processing and assembling thinking that flue gas outflow side is installed, one
Aspect is in order at the consideration to practical set, the directionality for making fin be installed without the concern for fin when being welded with base tube；Separately
On the one hand this flue gas flows into side opening and can form flowing and boundary layer interruption, restarts boundary layer flow, so that boundary layer
Thinning, Local Condensing Heat Transfer Coefficients increase, and reach the purpose of augmentation of heat transfer.
In sum, structure of the invention has good heat transfer and anti-dust stratification characteristic, while easy to process, it is easy to accomplish
Batch production, contacts closely, with extremely strong industrial application value with industrial production.
Brief description of the drawings
Fig. 1 is the schematic diagram of the pin wing finned tube in clamp single edges open semicircle shape hole in embodiments of the invention one.
Fig. 2 is the pin wing finned tube and conventional needle wing in clamp single edges open semicircle shape hole in embodiments of the invention one
The gas flow schematic diagram of finned tube, wherein：Fig. 2 a are the gas flow schematic diagram of conventional needle wing finned tube, and Fig. 2 b are this hair
The gas flow schematic diagram of the pin wing finned tube in clamp single edges open semicircle shape hole in bright embodiment one.
Fig. 3 is the entirety of the pin wing finned tube with rectangle clamp under different base tube forms in embodiments of the invention two
Structural representation, wherein Fig. 3 a are elliptical tube, and Fig. 3 b are oval pipe.
Fig. 4 is the unilateral edge hole shape of different clamps under identical pin pipe surface shape in embodiments of the invention three
Structural representation.Wherein, Fig. 4 a are the schematic perspective views of the pin wing finned tube that the unilateral edge hole shape of clamp is half H-shaped,
Fig. 4 b are the front views that the unilateral edge hole shape of clamp is half H-shaped clamp.
Fig. 5 is the clamp structure schematic diagram in embodiments of the invention four for existing pin wing finned tube Overall Reconstruction,
Fig. 5 a are the clamp schematic perspective views of unilateral edge not open semicircle connected in star central aperture, and Fig. 5 b are that the unilateral edge of clamp does not open half
The schematic perspective view of the pin wing finned tube of circular groove central aperture, Fig. 5 c are unilateral edge open semicircle connected in star central apertures
Clamp schematic perspective view, Fig. 5 d are that the solid of the pin wing finned tube of the unilateral edge open semicircle connected in star central aperture of clamp is shown
It is intended to.
Fig. 6 is the structural representation of double card plate pin wing finned tube in embodiments of the invention five, and wherein Fig. 6 a are double cards
Plate pin wing finned tube schematic perspective view, Fig. 6 b are the front views of double card plate pin wing finned tube.
Fig. 7 is that clamp is stuck in structural representation between two pin-fin tubes in embodiments of the invention six, wherein, Fig. 7 a are
It is positive apparent direction with flue gas direction of flow, the clamp in both sides edge open semicircle hole is stuck in the pin wing fin pipe clamp between pin-fin tube
The schematic perspective view of the pin wing finned tube between the second from the bottom of pin-fin tube, three pipes, Fig. 7 b are with flue gas direction of flow
It is positive apparent direction, the pin wing finned tube that the clamp in both sides edge open semicircle hole is stuck between pin-fin tube is stuck in the inverse of pin-fin tube
The schematic perspective view of the pin wing finned tube of the pin wing finned tube between first and second pipe.
Fig. 8 be embodiments of the invention six on base tube flue gas direction of flow increase rectangular slab schematic diagram, wherein scheming
8a is schematic perspective view, and Fig. 8 b are front view.
Specific embodiment
The present invention will be described in more detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
Fig. 1 is the schematic diagram of the pin wing finned tube in clamp single edges open semicircle shape hole in embodiments of the invention one.
The structure includes base tube 1, pin-fin tube group 3 and clamp group 4；The pin-fin tube group 3 is constituted by left and right two groups, and often
Group is regularly arranged according to certain pitch, along the axially in parallel arrangement of base tube outer wall；The clamp group 4 is by left and right two groups of identical squares
Shape clamp is constituted；The pin-fin tube group 3, by hole 2, is connected with clamp group 4 in the way of cutting ferrule or welding.
According to the hole shape that the pitch of pin-fin tube on base tube 1 is provided with can be to agree with pin tube shape at clamp one side edge
Semicircle.For the clamp group 4, using institute's cutting ferrule pin wing finned tube at the straight line parallel with base tube axial direction line as clamp
Reference direction, its incline direction is 10 °~80 ° with the angle of attack of gas direction of flow.
In clamp group 4 perforated area be slightly larger than pin wing fin tube section, both be gap coordinate, pin wing finned tube with
Butt welding is realized by hole between clamp, and fixes both to form entirety by local spot welding.
Fig. 2 is the pin wing finned tube and conventional needle wing in clamp single edges open semicircle shape hole in embodiments of the invention one
The gas flow schematic diagram of finned tube, wherein：Fig. 2 a are the pin in clamp single edges open semicircle shape hole in embodiments of the invention one
The gas flow schematic diagram of wing finned tube, Fig. 2 b are the gas flow schematic diagram of conventional needle wing finned tube.
As shown in Figure 2 a, under containing grey airflow scouring, due to the presence of fluid viscous effect in itself and adverse pressure gradient, stream
It is dynamic necessarily to separate, and vortex stagnation region is formed in finned tube leeward side, and gas flow rate is very low in stagnation region, gas cannot
Continue to carry ash particle motion, therefore stagnation region can be considered as dust stratification area substantially.Therefore, containing the ash particle in grey air-flow in the back of the body
Wind side is constantly accumulated, and causes local a large amount of dust stratifications, seriously reduces the heat-transfer effect of pin wing finned tube.As shown in Figure 2 b, exist
Add axially through clamp after, partial fume is guided to base tube leeward side by clamp, reduces dust stratification area area, so as to improve
Dust stratification situation.
Embodiment two
Fig. 3 is the entirety of the pin wing finned tube with rectangle clamp under different base tube forms in embodiments of the invention two
Structural representation.In the present embodiment, for the identical structure of embodiment one, give identical symbol, and omit identical
Explanation.
As shown in Fig. 3 a and Fig. 3 b in Fig. 3, base tube 1 is also not limited to the pipe described in embodiment one, can also be
Any one in elliptical tube or oval pipe.
Embodiment three
Fig. 4 is the unilateral edge hole shape of different clamps under identical pin pipe surface shape in embodiments of the invention three
Structural representation.Wherein, Fig. 4 a are the schematic perspective views of the pin wing finned tube that the unilateral edge hole shape of clamp is half H-shaped,
Fig. 4 b are the schematic perspective views that the unilateral edge hole shape of clamp is half H-shaped clamp.In the present embodiment, for embodiment one
Identical structure, gives identical symbol, and omit identical explanation.
As shown in figure 4, the pin wing finned tube of axial clamp plate type involved in the present invention its unilateral edge perforate is not limited to
In semicircle, or half H-shaped.For the clamp that the unilateral edge hole shape of clamp is half H-shaped, its incline direction and gas
The angle of attack of direction of flow is 10 °~80 °.It should be strongly noted that the design of half H-shaped clamp is it is enclosed within pin wing fin
Guan Shanghou is being partially formed a H-shaped finned tube for deformation, so can further prevent the dust stratification of finned tube pin portion, by force
Change heat transfer.Rectangle clamp mentality of designing with circular arc is similar with half H-shaped clamp.
Example IV
Fig. 5 is the clamp structure schematic diagram in embodiments of the invention four for existing pin wing finned tube Overall Reconstruction,
Fig. 5 a are the clamp schematic perspective views of unilateral edge not open semicircle connected in star central aperture, and Fig. 5 b are that the unilateral edge of clamp does not open half
The schematic perspective view of the pin wing finned tube of circular groove central aperture, Fig. 5 c are unilateral edge open semicircle connected in star central apertures
Clamp schematic perspective view, Fig. 5 d are that the solid of the pin wing finned tube of the unilateral edge open semicircle connected in star central aperture of clamp is shown
It is intended to.In the present embodiment, for the identical structure of embodiment one, give identical symbol, and omit identical explanation.
In order to be able to directly be transformed on the basis of existing pin wing finned tube, The present invention gives as shown in Figure 5
Settling mode, will clamp in the width direction in the middle of according to the pin-fin tube section size on existing pin wing finned tube and adjacent wing
Pitch between piece, along its length perforate then on direct cutting ferrule to pin wing finned tube, is fixed by spot welding.
Embodiment five
Fig. 6 is the structural representation of double card plate pin wing finned tube in embodiments of the invention five.Wherein Fig. 6 a are double cards
Plate pin wing finned tube schematic perspective view, Fig. 6 b are the front views of double card plate pin wing finned tube.In the present embodiment, for
The identical structure of embodiment one, gives identical symbol, and omit identical explanation.
As shown in Figure 6, the clamp in pin-fin tube group 3 multipair can arrange, according to every group of number of clamp, can form double card
Plate pin wing finned tube and many clamp pin wing finned tubes.
Embodiment six
Fig. 7 is that clamp is stuck in structural representation between two pin-fin tubes in embodiments of the invention six.Wherein, Fig. 7 a are
It is positive apparent direction with flue gas direction of flow, the clamp in both sides edge open semicircle hole is stuck in the pin wing fin pipe clamp between pin-fin tube
The schematic perspective view of the pin wing finned tube between the second from the bottom of pin-fin tube, three pipes, Fig. 7 b are with flue gas direction of flow
It is positive apparent direction, the pin wing finned tube that the clamp in both sides edge open semicircle hole is stuck between pin-fin tube is stuck in the inverse of pin-fin tube
The schematic perspective view of the pin wing finned tube of the pin wing finned tube between first and second pipe.In the present embodiment, for reality
The identical structure of example one is applied, identical symbol is given, and omit identical explanation.
As shown in Fig. 7 a and Fig. 7 b in Fig. 7, if the clamp of both sides edge perforate is stuck between two pin-fin tubes,
It is positive apparent direction with flue gas direction of flow, institute's card position can be between the second from the bottom of pin-fin tube group 3, three pipes, it is also possible to
Between the last of pin-fin tube group 3, two pipes, as long as that is, clamp institute card position is vertical with direction of flow no more than base tube 1
Central Symmetry position.
Embodiment seven
Fig. 8 is the schematic diagram that seven kinds of embodiments of the invention flue gas direction of flow on base tube increases rectangular slab, wherein scheming
8a is schematic perspective view, and Fig. 8 b are front view.
It is positive apparent direction with flue gas direction of flow as shown in Fig. 8 a and Fig. 8 b in Fig. 8, when there is viscous ash deposit, institute
Stating the front portion of pin-fin tube need to weld one piece of rectangular slab 5, with the dust stratification for preventing from being produced containing grey airflow scouring front, the base of rectangular slab 5
5mm is preferably greater than with base tube surface clear distance, wherein rectangular slab is welded on several supports 6, support 6 is directly with complete penetraction and fusion in welding knot
Structure is welded on base tube.
Claims (10)
1. the pin wing finned tube of a kind of axial clamp plate type, it is characterised in that：Including base tube (1), pin-fin tube group (3) and clamp group
(4)；The pin-fin tube group (3) is constituted by left and right two groups, and every group include multiple row according to preset pitch arrangement, along base tube (1) outward
The pin wing finned tube of the axially in parallel arrangement of wall；The clamp group (4) is made up of left and right two groups of identicals rectangle clamp, is located at
Pin-fin tube group (3) leeward side；The pin-fin tube group (3) by hole (2), is connected with clamp group (4) in the way of cutting ferrule or welding.
2. the pin wing finned tube of a kind of axial clamp plate type according to claim 1, it is characterised in that：Described base tube
(1) be pipe, any one in elliptical tube and oval pipe.
3. the pin wing finned tube of a kind of axial clamp plate type according to claim 1, it is characterised in that：The clamp group
(4) it is to be provided with hole (2) according to the pitch of pin-fin tube group (3) on base tube (1) at its edge along its length, or at it along width
According to the pitch perforate (2) of pin-fin tube group (3) on base tube (1) in the middle of on direction, hole (2) realize one-shot forming by punching press；
Clamp group (4) one side edge along its length is shaped as according to the hole (2) that the pitch of pin-fin tube group (3) on base tube (1) is provided with
Agree with the semicircle or half H-shaped of pin-fin tube group (3) shape, at clamp group (4) both sides edge according to pin-fin tube group on base tube (1)
(3) hole (2) that pitch is provided with is shaped as agreeing with the semicircle of pin-fin tube group (3) shape, is gone up in the width direction in clamp group (4)
The hole (2) that the middle pitch according to pin-fin tube group (3) on base tube (1) is provided with is shaped as agreeing with the circle of pin-fin tube group (3) shape；
If clamp group (4) goes up central aperture (2) in the width direction, its unilateral edge is provided with semi-circular recesses or does not slot.
4. the pin wing finned tube of a kind of axial clamp plate type according to claim 3, it is characterised in that：The clamp group
(4) it is fastened in along the same of base tube (1) axial direction with the clamp that the type of attachment of pin-fin tube group (3) is two one side edge perforate (2)
On one row's pin wing finned tube；Or the clamp on both sides edge perforate (2) is stuck in two row's pin wing along base tube (1) axial direction
Between finned tube；Or the clamp of central aperture (2) is directly fastened in the same row's pin wing finned tube along base tube (1) axial direction
On.
5. the pin wing finned tube of a kind of axial clamp plate type according to claim 4, it is characterised in that：If by a both sides
The clamp of edge perforate (2) is stuck between two row's pin wing finned tubes along base tube (1) axial direction, with flue gas direction of flow to face
Direction, institute's card position is between the second from the bottom of pin-fin tube group (3), three pin wing finned tubes, or falling in pin-fin tube group (3)
Between first and second pin wing finned tube of number, i.e., clamp group (4) is as long as institute's card position is hung down no more than base tube (1) with direction of flow
Straight Central Symmetry position.
6. the pin wing finned tube of a kind of axial clamp plate type according to claim 1, it is characterised in that：The perforate (2)
Area is more than pin wing fin tube section, and both coordinate for gap；For the clamp group (4), with institute's cutting ferrule pin-fin tube group (3)
Locate the straight line parallel with base tube (1) axial direction line as clamp reference direction, its incline direction is with the angle of attack of gas direction of flow
10 °~80 °.
7. the pin wing finned tube of a kind of axial clamp plate type according to claim 1, it is characterised in that：The clamp group
(4) left and right two groups are the side that one or more are arranged in flue gas outflow, according to each group of number of clamp, form double card
Plate pin wing finned tube and many clamp pin wing finned tubes.
8. the pin wing finned tube of a kind of axial clamp plate type according to claim 1, it is characterised in that：Described pin-fin tube
The arrangement mode of group (3) is divided into in-line arrangement, axially or perpendicular to base tube (1) is axially staggered in arrangement and along cigarette along base tube (1)
Unequal distance arrangement on flow of air direction.
9. the pin wing finned tube of a kind of axial clamp plate type according to any one of claim 1 to 8, it is characterised in that：Institute
The clamp group (4) and pin-fin tube group (3) stated are in a symmetrical arrangement on base tube (1).
10. the pin wing finned tube of a kind of axial clamp plate type according to claim 1, it is characterised in that：Flowed with flue gas
Direction is positive apparent direction, and when there is viscous ash deposit, the pin-fin tube group (3) is left and right with the near-end of flue gas direction of flow
It is welded between two groups along the axially placed rectangular slab (5) of base tube (1), with the dust stratification for preventing from being produced containing grey airflow scouring front, its
Middle rectangular slab (5) is welded on several supports (6), and rectangular slab (5) base and base tube (1) surface clear distance are more than 5mm, branch
Frame is directly with complete penetraction and fusion in welding structure welding on base tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226707.XA CN106705731A (en) | 2016-12-27 | 2016-12-27 | Axial locking plate type pin-fin type finned tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226707.XA CN106705731A (en) | 2016-12-27 | 2016-12-27 | Axial locking plate type pin-fin type finned tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106705731A true CN106705731A (en) | 2017-05-24 |
Family
ID=58896382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611226707.XA Pending CN106705731A (en) | 2016-12-27 | 2016-12-27 | Axial locking plate type pin-fin type finned tube |
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| CN (1) | CN106705731A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388838A (en) * | 2017-08-14 | 2017-11-24 | 茂名重力石化装备股份公司 | A kind of boiler tube turbulence structure and there is its heating furnace |
| CN107687710A (en) * | 2017-08-14 | 2018-02-13 | 茂名重力石化装备股份公司 | A kind of light boiler tube with uniform flow lid and there is its heating furnace |
| CN107702579A (en) * | 2017-08-14 | 2018-02-16 | 茂名重力石化装备股份公司 | A kind of studded tube with uniform flow lid and there is its heating furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107388838A (en) * | 2017-08-14 | 2017-11-24 | 茂名重力石化装备股份公司 | A kind of boiler tube turbulence structure and there is its heating furnace |
| CN107687710A (en) * | 2017-08-14 | 2018-02-13 | 茂名重力石化装备股份公司 | A kind of light boiler tube with uniform flow lid and there is its heating furnace |
| CN107702579A (en) * | 2017-08-14 | 2018-02-16 | 茂名重力石化装备股份公司 | A kind of studded tube with uniform flow lid and there is its heating furnace |
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