CN205878980U - Oval butterfly type finned tube - Google Patents
Oval butterfly type finned tube Download PDFInfo
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- CN205878980U CN205878980U CN201620698977.XU CN201620698977U CN205878980U CN 205878980 U CN205878980 U CN 205878980U CN 201620698977 U CN201620698977 U CN 201620698977U CN 205878980 U CN205878980 U CN 205878980U
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- butterfly
- oval
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- tube
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Abstract
The utility model provides an oval butterfly type finned tube, including two parent tubes that are parallel to each other to and establish and manage a plurality of groups in the both sides fin of symmetry each other in two foundation, the parent tube is oval parent tube, the fin is butterfly type fin, and every all leave the corner cut around the butterfly type fin, every group of mutual symmetry the axial lead direction of the oval parent tube of the equal perpendicular to in plane that butterfly type fin is constituteed, and every group symmetry all leave the clearance between butterfly type fin. The utility model discloses rib coefficient height not only, temperature distribution is even in addition, consequently has good heat transfer effect, and simultaneously because the fin is parallel with the air current flow direction, dust is difficult for precipitating at the fin, has just replaced traditional pipe with the elliptical tube, and flow resistance loss is little, has avoided flue gas flow path's jam effectively.
Description
Technical field
This utility model relates to the technical field of heat exchange of electric power, environmental protection, chemical industry, the energy, in particular it relates to a kind of oval butterfly
Type finned tube.
Background technology
Along with the acceleration of process of industrialization, the pollution that atmospheric environment is faced is the most serious.More and more severe in order to improve
Air ambient, country is increasingly stricter to the discharge of waste gas, and the flue gas that especially thermal power plant is discharged, due to its cigarette temperature
Higher, and wherein contain composition harmful to air in a large number, if this partial fume is directly discharged in air without process,
Not only cause air pollution, also can form the waste of the energy.
In order to avoid the generation of this phenomenon, and tackle the strictest discharge standard of China and environment protection, can
MGGH (No leakage formula flue gas-flue gas heat-exchange unit) or low-level (stack-gas) economizer are set before electric cleaner or desulfurizing tower, to reclaim cigarette
Gas waste heat, improves cleaner unit efficiency of dust collection.
The most domestic flue gas heat exchange equipment many employings spiral fin coil, but due to the flue gas discharged in thermal power plant
Dustiness is high, and the easy dust stratification of spiral fin coil, serious even can block flue, thus affect the properly functioning of whole power plant.
Simultaneously because the fume side drag losses of spiral fin coil is big, original air-introduced machine pressure head allowance in some Power Plant Renovation Projects
Little, if the resistance of heat transmission equipment is excessive, need to be to Induced Draft Fan, this meeting increase improvement cost and quantities greatly, thus pole
The big use constraining this heat exchanger tube.
Through retrieving, the Chinese utility model patent of Publication No. CN202329341U, open a kind of elliptical H-shaped finned tube,
This utility model relates to a kind of elliptical H-shaped finned tube, and including oval base tube, described oval base tube is provided with some groups of wings
Sheet, the plane of described fin is vertical with the axis of oval base tube, and each group of fin is involuted by two pieces of fins, is arranged on
The both sides of oval base tube, leave gap between two fins, along oval base tube radially section, described finned tube is overall in H type.But
This patent due to H type fin 4 right-angle surface from base tube center farther out, its heat transfer effect is poor, therefore have impact on whole fin
The heat exchange efficiency of pipe, and metal consumption is big, there is certain waste.
Therefore to solution the problems referred to above, a kind of good effect of heat exchange, resistance certainly will be needed little and accumulatingdust and wear-resistant changing
Heat pipe.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of oval butterfly-type finned tube, and it is not only
Inned coefficient is high, and uniform distribution of temperature field, and the heat exchange efficiency of whole finned tube is good, simultaneously effective avoids flow of flue gas
The blocking of passage, reduces metal consumption.
For realizing object above, this utility model provides a kind of oval butterfly-type finned tube, including two bases being parallel to each other
Pipe, and it is located at the two symmetrical fins in some groups of foundation pipe both sides；Described base tube is oval base tube；Described fin is butterfly-type
Fin, the surrounding of every described butterfly-type fin all leaves corner cut；The symmetrical plane often organizing described butterfly-type fin composition is equal
It is perpendicular to the direction of axis line of oval base tube, and often organizes and all leave gap between the described butterfly-type fin of symmetry；Described butterfly-type fin
Using the mode of welding to be connected with described oval base tube, butterfly-type fin is provided with the arc groove coincideing with base tube.
Preferably, the described oval major axis of base tube is 1.2～12 with the ratio range of short axle.Due to fluid flow direction with
Base tube short-axis direction is vertical, and its windward side sectional area is less compared with pipe so that the flow resistance of fluid is greatly reduced.
Preferably, the wall thickness of described oval base tube is 1.5～6mm.
Preferably, the centre-to-centre spacing of two described oval base tubes is 10～150mm.
Preferably, the thickness of described butterfly-type fin is identical, is 1.5～6mm.
Preferably, described butterfly-type fin, corner cut is in the range of 15～75 °.
Preferably, described butterfly-type fin, the incision size scope of corner cut is 2～100mm.
Preferably, described butterfly-type fin, height dimension H1 scope is 5～100mm, height dimension H2 scope be 5～
100mm, H1 refer to the fin height along oval base tube long axis direction, and the fin that H2 refers to along oval base tube short-axis direction is high
Degree.
Preferably, the interstice coverage often organized between the described butterfly-type fin of symmetry is 0.1a～0.7a, and a is that oval base tube is short
Axle.
Preferably, be perpendicular to the butterfly-type fin of the direction of axis line of described oval base tube, between adjacent butterfly-type fin between
Away from for 3～100mm.
Each preferred parameter area above-mentioned is so that oval butterfly-type heat exchanger tube is in varying environment, resistance, space
Require and thermal transmission requirement is little, whole heat transmission equipment structure is adjusted, to reach the requirement under different situation.
Compared with prior art, this utility model has a following beneficial effect:
The oval base tube of base tube described in the utility model replaces pipe, reduces the resistance that air-flow is caused through base tube surface
Power is lost, thus reduces fan energy consumption, this is because compared with pipe, oval base tube short-axis direction sectional area windward more
Little, and the eddy current situation that oval base tube lee face is formed also improved, the flow losses also phase that therefore oval base tube is caused
Should reduce；And compared with the Chinese utility model patent of Publication No. CN202329341U, use two simultaneously and be parallel to each other
Base tube, favourable to the welding of finned tube group, meet heat exchange efficiency at the same time, it is ensured that on the premise of heat exchange area, greatly reduce
Welding job amount, improves the space availability ratio between heat exchanger tube, the miniaturization of equipment is also had certain help.
This utility model is compared with traditional H type fin, and it all leaves corner cut in fin surrounding so that whole fin becomes butterfly
Type, so that the Temperature Distribution of whole finned tube is more uniform, eliminates heat exchanging corner, and in the case of equal area, it changes
The thermal efficiency is higher, and the utilization to metal is more preferable, so that the metal consumptive material of whole heat exchanger tube is less, structure is compacter.
To sum up, this utility model uses butterfly-type fin, and not only temperature field branch is uniform, and inned coefficient is high, therefore conducts heat
Effective, simultaneously because the stream condition that air-flow is between oval butterfly-type finned tube is good, and parallel current flows through on oval base tube
Butterfly-type fin, therefore compared with spiral fin coil, it has more preferable abrasionproof and accumulatingdust characteristic.
Accompanying drawing explanation
The detailed description with reference to the following drawings, non-limiting example made by reading, other spy of the present utility model
Levy, purpose and advantage will become more apparent upon:
Fig. 1 is the front view of this utility model one embodiment；
Fig. 2 is the left view of this utility model one embodiment；
Fig. 3 is the top view of this utility model one embodiment；
In figure: oval base tube 1, butterfly-type fin 2.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in detail.Following example will assist in this area
Technical staff is further appreciated by this utility model, but limits this utility model the most in any form.It should be pointed out that, to ability
For the those of ordinary skill in territory, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement.
These broadly fall into protection domain of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, the present embodiment provides a kind of oval butterfly-type finned tube, by two ellipses being parallel to each other
Base tube 1 and be distributed in some fins composition of oval base tube 1 both sides, wherein: described fin 2 is the most symmetrical, and is perpendicular to ellipse
Base tube 1 axis direction, and often organize symmetry described butterfly-type fin between all leave gap, the surrounding of every described butterfly-type fin is all stayed
Having corner cut, form butterfly-type fin, described butterfly-type fin 2 uses the mode of welding to be connected with oval base tube 1.
This utility model leaves 4 corner cuts on traditional H type finned tube, and fin becomes butterfly-type, so that whole finned tube
Temperature Distribution more uniform, eliminate heat exchanging corner.In the case of equal area, its heat exchange efficiency is higher, to metal
Utilizing more preferably, so that the metal consumptive material of whole heat exchanger tube is less, structure is compacter.
In part preferred embodiment:
The ratio range of the major axis b and short axle a of described oval base tube 1 was 1.2～12 (as shown in Figure 1)；
The wall thickness range of described oval base tube 1 is 1.5～6mm；
The central moment H3 of two described oval base tubes 1 is in the range of 10～150mm (as shown in Figure 1 and Figure 2).
The butterfly-type fin that this utility model is symmetrical on oval base tube both sides, butterfly-type fin 2 leaves and coincide with base tube
Arc groove, leave a gap between the butterfly-type fin that two panels is symmetrical.
In part preferred embodiment:
Described butterfly-type fin 2 surrounding leaves corner cut α, and α is in the range of 15～75 ° (as shown in Figure 1), described butterfly-type fin 2
Incision size J scope be 2～100mm (as shown in Figure 1)；
The consistency of thickness of every described butterfly-type fin 2, the thickness M scope of butterfly-type fin 2 is 1.5～6mm (such as Fig. 2, Fig. 3
Shown in)；
The height dimension H1 scope of butterfly-type fin 2 is 5～100mm, the height dimension H2 scope of butterfly-type fin 2 be 5～
100mm, H1 refer to the fin height along oval base tube long axis direction, and the fin that H2 refers to along oval base tube short-axis direction is high
Degree；
Often leaving gap A between the symmetrical butterfly-type fin 2 of group, A scope is 0.1a～0.7a (as shown in Figure 1)；
Vertical distribution was 3～100mm (as shown in Figure 2 and Figure 3) in butterfly-type fin 2 interval S that oval base tube is axial.
In the above-described embodiments, the oval base tube of described base tube replaces pipe, reduces air-flow and is made through base tube surface
The drag losses become, thus reduce fan energy consumption (this is because compared with pipe, oval base tube is in the cross section windward of short-axis direction
Amass less, and the eddy current situation that oval base tube lee face is formed also is improved, the flow losses that therefore oval base tube is caused
Reduce the most accordingly)；
In the above-described embodiments, using butterfly-type fin, not only temperature field branch is uniform, and inned coefficient is high, therefore conducts heat
Effective, simultaneously because the stream condition that air-flow is between oval butterfly-type finned tube is good, and parallel current flows through on oval base tube
Butterfly-type fin, therefore compared with spiral fin coil, it has more preferable abrasionproof and accumulatingdust characteristic.
Above specific embodiment of the utility model is described.It is to be appreciated that this utility model not office
Being limited to above-mentioned particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims,
This has no effect on flesh and blood of the present utility model.
Claims (10)
1. an oval butterfly-type finned tube, it is characterised in that include two base tubes being parallel to each other, and be located at two foundation pipes two
The symmetrical fin in some groups of side；Described base tube is oval base tube；Described fin is butterfly-type fin, every described butterfly-type fin
Surrounding all leave corner cut；The symmetrical plane often organizing described butterfly-type fin composition is each perpendicular to the axial line of oval base tube
Direction, and often organize symmetry described butterfly-type fin between all leave gap；Described butterfly-type fin uses with described oval base tube and welds
Mode connect, butterfly-type fin be provided with base tube coincide arc groove.
A kind of oval butterfly-type finned tube the most according to claim 1, it is characterised in that the major axis of described oval base tube is with short
The ratio range of axle is 1.2～12.
A kind of oval butterfly-type finned tube the most according to claim 2, it is characterised in that the wall thickness of described oval base tube is
1.5～6mm.
A kind of oval butterfly-type finned tube the most according to claim 1, it is characterised in that the center of two described oval base tubes
Away from for 10～150mm.
A kind of oval butterfly-type finned tube the most according to claim 1, it is characterised in that described butterfly-type fin, the model of corner cut
Enclose is 15～75 °.
A kind of oval butterfly-type finned tube the most according to claim 1, it is characterised in that described butterfly-type fin, cutting of corner cut
Mouth size range is 2～100mm.
A kind of oval butterfly-type finned tube the most according to claim 1, it is characterised in that the thickness phase of described butterfly-type fin
With, thickness is 1.5～6mm.
A kind of oval butterfly-type finned tube the most according to claim 1, it is characterised in that described butterfly-type fin, height dimension
H1 scope is 5～100mm, and height dimension H2 scope is 5～100mm, and the fin that H1 refers to along oval base tube long axis direction is high
Degree, H2 refers to the fin height along oval base tube short-axis direction.
9. according to a kind of oval butterfly-type finned tube described in any one of claim 1-8, it is characterised in that symmetrical is described
Gap between butterfly-type fin is the oval short axle of base tube in the range of 0.1a～0.7a, a.
10. according to a kind of oval butterfly-type finned tube described in any one of claim 1-8, it is characterised in that be perpendicular to described ellipse
The butterfly-type fin of the direction of axis line of physa pipe, the spacing between the most adjacent butterfly-type fin is 3～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698977.XU CN205878980U (en) | 2016-07-05 | 2016-07-05 | Oval butterfly type finned tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698977.XU CN205878980U (en) | 2016-07-05 | 2016-07-05 | Oval butterfly type finned tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205878980U true CN205878980U (en) | 2017-01-11 |
Family
ID=57694447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620698977.XU Active CN205878980U (en) | 2016-07-05 | 2016-07-05 | Oval butterfly type finned tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205878980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167017A (en) * | 2017-05-02 | 2017-09-15 | 哈尔滨理工大学 | A kind of H type ribbed pipe type economizers of new structure |
-
2016
- 2016-07-05 CN CN201620698977.XU patent/CN205878980U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167017A (en) * | 2017-05-02 | 2017-09-15 | 哈尔滨理工大学 | A kind of H type ribbed pipe type economizers of new structure |
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