CN204787979U - Revolve to hurricane band in turn and be equipped with its heat exchange tube - Google Patents
Revolve to hurricane band in turn and be equipped with its heat exchange tube Download PDFInfo
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- CN204787979U CN204787979U CN201520276579.4U CN201520276579U CN204787979U CN 204787979 U CN204787979 U CN 204787979U CN 201520276579 U CN201520276579 U CN 201520276579U CN 204787979 U CN204787979 U CN 204787979U
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Abstract
The utility model relates to an indirect heating equipment specifically provides a revolve to hurricane band in turn and be equipped with its heat exchange tube. Revolve and to link into an integrated entity by the short hurricane band of levogyration and the short hurricane band NULL of dextrorotation, each weak point hurricane band to hurricane band in turn. Revolve to fluidic in the hurricane band not only causes the heat exchange tube in turn rotatory, still cause the fluidic constantly the separation with mix, the whirl change repeatedly to, strengthened mainstream district fluid and nearly wall district fluidic radial mixing effectively, destroy the development in boundary layer to it lands to show has reinforceed heat transfer process.
Description
Technical field
The utility model relates to heat transmission equipment, specifically, relates to the heat exchanger tube that a kind of rotation direction replaces hurricane band and is provided with it.
Background technology
Study the reinforcement technique of various diabatic process and futuramic compact heat exchanger according to this, be not only the problem that must solve in development of modern industry process, be also the urgent task developing new forms of energy and carry out energy conservation simultaneously.
Pipe heat exchanger is using pipe as heat transfer element, have that structure is simple, easily manufactured, applicability is strong, security is high, selection range is wide, disposal ability is large, be more suitable for high pressure-temperature under the feature such as power conversion, be a kind of most widely used industrial heat exchange equipment, account for about 70% of whole heat exchanger.
Twisted strip, static mixer, hurricane band, spiral winding, helical spring etc. are inserted in heat exchanger tube, fluid can be made to rotate in pipe, increase the flow path of fluid, add the disturbance in strong convection body boundary layer, improve the turbulence intensity of near wall region fluid, promote the mixing of boundary layer fluid and main fluid, thus effectively strengthen convection heat transfer' heat-transfer by convection process.
With the foil of one fixed width, make in the spiral fluted axle of certain depth and a constant pitch at car in advance and be entwined hurricane band; Or form hurricane band with plastic processing.
The hurricane band same or slightly shorter with heat exchanger tube length is inserted in heat exchanger tube, near wall region fluid in heat exchanger tube can be made to produce rotate, and make fluid periodically go out object area at spiral prominence to be disturbed, high flow rate and high turbulence intensity is there is near wall region, therefore, it is possible to keep higher heat-transfer intensity, this is a kind of effective ways of strengthening single-phase fluid heat-transfer.Because pipe inside spin band structure is simple, stable performance, is easy to mounting or dismounting and maintenance, does not need to change the advantages such as heat-transfer area shape, being both suitable for existing equipment taps the potential and upgrade technologically, and is also applicable to manufacturing and designing of new equipment.
But the direction of rotation of hurricane band immobilizes in prior art, pipe inward eddy does not also alter course, and the radial mixing intensity of main flow area fluid and near wall region fluid is not enough, and the amplitude of augmentation of heat transfer is little.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide the heat exchanger tube that a kind of rotation direction replaces hurricane band and is provided with it, solves in prior art because the direction of rotation of hurricane band immobilizes the little problem of the radial mixing intensity deficiency of the main flow area fluid caused and near wall region fluid, augmentation of heat transfer amplitude.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of rotation direction to replace hurricane band, and it is alternately arranged by left-handed short hurricane band and the short hurricane band of dextrorotation, and each short hurricane band links into an integrated entity.
The material of described short hurricane band is metal or plastics.
The full pitch of the length of described short hurricane band to be 0.5 ~ 4H, H be hurricane band.
As preferably, the length of described short hurricane band is 2H.
Further, the length of each short hurricane band can be equal, also can be unequal.
The external diameter of the width of described short hurricane band to be 0.15 ~ 0.45d, d be hurricane band.
As preferably, the width of described short hurricane band is 0.25d.
The utility model also provides a kind of and is provided with the heat exchanger tube that aforementioned rotation direction replaces hurricane band, and the external diameter of hurricane band is equal to or slightly less than the internal diameter of body, and the length sum of each short hurricane band is equal to or slightly less than the length of body.
Rotation direction in heat exchanger tube replaces hurricane band and is alternately arranged by left-handed short hurricane band and the short hurricane band of dextrorotation, by adjacent short hurricane band welding or bonding link into an integrated entity after overallly to insert in heat exchanger tube, or each short hurricane band to be inserted respectively in heat exchanger tube and to make adjacent short hurricane band close contact.
Rotation direction replaces hurricane band not only makes fluid produce rotation in pipe, go out object area at spiral prominence and be subject to periodic disturbance, high flow rate and high turbulence intensity is there is near wall region, also cause the changed course repeatedly of the continuous separation of fluid and mixing, eddy flow, effectively enhance the radial direction mixing of main flow area fluid and near wall region fluid, destroy the development in boundary layer, thus significantly enhance diabatic process.
(3) beneficial effect
The rotation direction that the utility model provides replaces hurricane band, not only make fluid produce in pipe to rotate, go out object area at spiral prominence and be subject to periodic disturbance, high flow rate and high turbulence intensity is there is near wall region, also cause the changed course repeatedly of the continuous separation of fluid and mixing, eddy flow, effectively enhance the radial direction mixing of main flow area fluid and near wall region fluid, destroy the development in boundary layer, thus significantly enhance diabatic process.
Accompanying drawing explanation
Fig. 1 is provided with the schematic diagram that rotation direction described in the utility model replaces the main apparent direction of the heat exchanger tube of hurricane band;
In figure, 1: body; 2: the short hurricane band of dextrorotation; 3: left-handed short hurricane band.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of the utility model protection.
Embodiment 1
Present embodiments provide a kind of rotation direction and replace hurricane band, it is alternately arranged by the short hurricane band of dextrorotation 2 and left-handed short hurricane band 3, and each short hurricane band links into an integrated entity, as shown in Figure 1.
The full pitch of the length of described left-handed short hurricane band and the short hurricane band of dextrorotation to be 2H, H be hurricane band.
The external diameter of the width of described left-handed short hurricane band and the short hurricane band of dextrorotation to be 0.25d, d be hurricane band.
Linked into an integrated entity by spot welding between adjacent short hurricane band.
Embodiment 2
The difference of the present embodiment and embodiment 1 is: the full pitch of the length of described short hurricane band to be H, H be hurricane band; The external diameter of the width of described short hurricane band to be 0.3d, d be hurricane band.
Embodiment 3
Present embodiments provide and be a kind ofly provided with rotation direction described in embodiment 1 and replace the heat exchanger tube of hurricane band, as shown in Figure 1.
Rotation direction in heat exchanger tube replaces hurricane band and is alternately arranged by left-handed short hurricane band and the short hurricane band of dextrorotation, overallly after each short hurricane band spot welding is linked into an integrated entity to insert in heat exchanger tube body 1, or each short hurricane band to be inserted respectively in heat exchanger tube and to make adjacent short hurricane band close contact.
Rotation direction replaces hurricane band not only makes fluid produce rotation in pipe, go out object area at spiral prominence and be subject to periodic disturbance, high flow rate and high turbulence intensity is there is near wall region, also cause the changed course repeatedly of the continuous separation of fluid and mixing, eddy flow, effectively enhance the radial direction mixing of main flow area fluid and near wall region fluid, destroy the development in boundary layer, thus significantly enhance diabatic process.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (4)
1. rotation direction replaces a hurricane band, it is characterized in that, it is alternately arranged by left-handed short hurricane band and the short hurricane band of dextrorotation, and each short hurricane band links into an integrated entity;
The full pitch of the length of described short hurricane band to be 0.5 ~ 4H, H be hurricane band;
The external diameter of the width of described short hurricane band to be 0.15 ~ 0.45d, d be short hurricane band.
2. rotation direction according to claim 1 replaces hurricane band, it is characterized in that, the length of described short hurricane band is 2H.
3. rotation direction according to claim 1 replaces hurricane band, it is characterized in that, the width of described short hurricane band is 0.25d.
4. be provided with rotation direction described in any one of claim 1-3 and replace the heat exchanger tube of hurricane band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276579.4U CN204787979U (en) | 2015-04-30 | 2015-04-30 | Revolve to hurricane band in turn and be equipped with its heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276579.4U CN204787979U (en) | 2015-04-30 | 2015-04-30 | Revolve to hurricane band in turn and be equipped with its heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204787979U true CN204787979U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520276579.4U Active CN204787979U (en) | 2015-04-30 | 2015-04-30 | Revolve to hurricane band in turn and be equipped with its heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204787979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036464A (en) * | 2017-04-06 | 2017-08-11 | 无锡科技职业学院 | A kind of high-efficiency tubular heat exchanger |
-
2015
- 2015-04-30 CN CN201520276579.4U patent/CN204787979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036464A (en) * | 2017-04-06 | 2017-08-11 | 无锡科技职业学院 | A kind of high-efficiency tubular heat exchanger |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |