CN104764355A - Zigzag spiral blade rotor inside heat exchange tube - Google Patents
Zigzag spiral blade rotor inside heat exchange tube Download PDFInfo
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- CN104764355A CN104764355A CN201510173704.3A CN201510173704A CN104764355A CN 104764355 A CN104764355 A CN 104764355A CN 201510173704 A CN201510173704 A CN 201510173704A CN 104764355 A CN104764355 A CN 104764355A
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- hollow shaft
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- spiral
- heat exchange
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Abstract
The invention discloses a zigzag spiral blade rotor inside a heat exchange tube. The zigzag spiral blade rotor is composed of a hollow shaft and zigzag spiral blades of which the tops alternately bend forwards and backwards, and saw teeth are evenly distributed. The spiral blades are located on the surface of the hollow shaft, and the outer diameter of each spiral blade is smaller than the inner diameter of the heat exchange tube. The surfaces of the spiral blades are smooth, and the spiral blades are in a spiral shape around the hollow shaft. The hollow shaft is a cylinder provided with a central hole. A connecting shaft can smoothly penetrate through the central hole of the hollow shaft. One end of the hollow shaft is a head part provided with a boss, the other end of the hollow shaft is a tail part, the tail part is a groove which is concentric with the boss, and the groove can be matched with the boss in dimension. When heat-transfer fluid flows through the rotor, the spiral blade rotor is driven to rotate, a three-dimensional spiral flowing state is formed, the turbulence intensity of the fluid and the disturbance of a boundary layer are enhanced, and fouling deposition can be prevented. The center temperature of the fluid in the heat exchange tube is higher than the wall surface temperature. The rotor is made of heat conduction materials, thereby having a heat conduction effect. The rotor brings heat of the center of the heat exchange tube to the wall of the tube, is beneficial to heat transfer and improves and intensifies heat exchange ability.
Description
Technical field
The present invention relates to a kind of interior inserted component being applied to augmentation of heat transfer and antiscaling, descaling in heat exchanger tube in the equipment such as shell-and-tube heat exchanger, heat exchange reactor, utilize heat exchanger tube internal heat transfer fluid to be used as power in particular to one, realize the serrated helicoid blade rotor of the low-energy-consumption high-efficiency of cleaning and heat-transfer enhancing function.
Background technology
For more and more serious problems of energy consumption, save energy and reduce the cost and seem particularly important.Shell-and-tube heat exchanger, as a kind of citation form of heat transmission equipment, is widely used in the every field of the national economy such as chemical industry, electric power, oil refining, power, metallurgy, refrigeration, food.In use usually there is scale formation in such heat exchanger.The thermal resistance of dirt is very large, greatly reduces the heat transfer efficiency of heat exchanger; In addition, fouling will cause runner to narrow, and flow resistance strengthens, and causes power consumption to increase, even can make equipment hot-spot, cause the accidents such as booster, had a strong impact on the safe operation of equipment.For shell-and-tube heat exchanger Problems existing in running, in the urgent need to exploitation can scale removal again can the technology of augmentation of heat transfer, to meet the needs setting up conservation-minded society.Twisted strip is insert in the pipe that is most widely used at present, publication number CN1424554 discloses the innovation and creation that a name is called " the spiral enhanced heat exchange of dual turbulent and automatic descaling apparatus ", this invention is used for augmentation of heat transfer and automatic desludging, except spiral band, fixed mount, this device has also set up helix tube, spiral band is placed in helix tube, and being flowed by fluid drives spiral band to rotate.Although medium flows in the shape of a spiral in helix tube, be conducive to improving enhanced heat exchange effect, the overall field coordination augmentation of heat transfer effect produced is not remarkable.In addition, because spiral band is integral type driving member, the not straight of tie will affect its rotation, and uneven gap can be produced between heat exchanger tube inwall, cause occurring that scale removal effect is little and uneven, tie weares and teares, and curl reduces and the problems such as pipe wall of heat exchange pipe of swiping.200910077378.0 disclose the patent application that name is called " a kind of unit-combination type heat transfer enhancement device ", this device comprises rotor, bracing frame, sleeve and connection axis, bracing frame is fixed on heat-transfer pipe two ends, the two ends connecting axis are separately fixed on bracing frame, connect on axis and several sleeve is housed, a sleeve and one or more rotor match.Flow-disturbing vane, cylinder, afterbody screw drives blade are the basic comprising parts of rotor, this strengthening and heat transferring device significantly can reduce flow resistance, the reduction abrasion of tube fluid, the service life of Extending Rotor, but the augmentation of heat transfer of this construction rotor and antiscaling, descaling ability all receive certain restriction.
Summary of the invention
The object of the invention is the rotor designing a kind of new construction, the vane tip of this rotor is designed to equally distributed zigzag fashion, and alternately to front and bend backward.This construction rotor can not only produce significant overall field coordination augmentation of heat transfer effect, can also reach pre-good antiscale property, the effect of cleaning heat exchange tube wall dirt.
The present invention be solve the problem adopt technical scheme be: zigzag helical-blade rotor in heat exchanger tube, by hollow shaft and top for form alternately to front and recurvate zigzag helical blade, and sawtooth is uniformly distributed, helical blade is positioned at hollow shaft surface, its external diameter is less than heat exchanger tube internal diameter, helical blade surface is smooth, around hollow shaft in the shape of a spiral; Hollow shaft is the cylinder of a band centre bore, and connecting axle can pass through the centre bore of hollow shaft, and hollow shaft one end is the head with boss, and the hollow shaft other end is afterbody, and it is the groove concentric with boss, and size can coordinate with boss.When heat-transfer fluid flows through rotor, drive helical-blade rotor rotates, and forms three-dimensional spiral type flow regime, not only exacerbates the turbulence intensity of fluid and the disturbance in boundary layer, the deposition of dirt can also be stoped in time, thus reach augmentation of heat transfer and self-cleaning double effects.Along with the rotation of rotor, vane tip sawtooth can make the radial motion of fluid mass between blade and blade be strengthened, increase flow disturbance, fluid can more effectively spread along blade tip to surrounding, the laminar boundary layer of near-wall heat-transfer fluid is produced and impacts, thus destroy the laminar boundary layer of heat-transfer fluid, produce significant field coordination augmentation of heat transfer effect.When helical blade is subject to the driving of fluid media (medium), the type of flow of its meeting alter, because flowing is subject to the Secondary Flow of transverse pressure effect generation, improves turbulivity and the heat exchange efficiency of fluid, adds automatically cleaning ability.In addition, fluid around the thinning boundary layer of eddy current that own axes produces, furthermore achieved that the effect of augmentation of heat transfer and antiscaling, descaling in motion process.
The present invention can adopt Heat Conduction Material make or plate one deck Heat Conduction Material at rotor surface, and in heat exchanger tube fluid movement process, the temperature of core flow is higher than near wall fluid.Heat, by the conductive force of Heat Conduction Material, is passed near wall fluid, is completed exchange heat by core flow, strengthens the effect of enhanced heat exchange.
Zigzag helical-blade rotor in heat exchanger tube of the present invention, the whole string that can join end to end is threaded onto and connects on axis, and connecting axis is the circular shaft of rigidity; Also can be divided into identical or different some groups of rotor quantity by locating part, make rotor uniform rotation.
Zigzag helical-blade rotor in heat exchanger tube of the present invention, helical blade and hollow cylinder are made by macromolecular material, ceramic material, metal, composite or Heat Conduction Material (as graphite is rare).
The invention has the beneficial effects as follows: 1, compared to other rotors, rotor involved in the present invention opens sawtooth on helical blade top, sawtooth can make the radial motion of fluid mass between blade and blade be strengthened, increase flow disturbance, fluid can more effectively spread along blade tip to surrounding, the laminar boundary layer of near-wall heat-transfer fluid is produced and impacts, thus destroy the laminar boundary layer of heat-transfer fluid, the field coordination augmentation of heat transfer successful of generation.2, in adjoint rotor turns process, sawtooth is more obvious to the flow-disturbing effect of helical blade top area, destroys the condition that dirt generates, and the high velocity stream of generation is remarkable to tube wall souring, realizes the effect of antiscaling, descaling.3, fluid in the motion process flowing through helical blade sawtooth around own axes produce eddy current, and because of flowing be subject to transverse pressure effect produce Secondary Flow, thinning boundary layer furthermore achieved that the effect of augmentation of heat transfer and antiscaling, descaling.4, heat exchanger tube inner fluid central temperature is higher than near wall temperature, and rotor can be made by Heat Conduction Material, has conductive force, takes the center heat of heat exchanger tube to tube wall, is conducive to heat transfer, improves the ability of enhanced heat exchange.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of zigzag helical-blade rotor in heat exchanger tube of the present invention.
Fig. 2 is the left TV structure schematic diagram of zigzag helical-blade rotor in heat exchanger tube of the present invention.
Fig. 3 is zigzag helical-blade rotor partial schematic diagram in heat exchanger tube of the present invention.
Fig. 4 wears square tooth helical-blade rotor mounting structure schematic diagram in heat exchanger tube of the present invention.
In figure, 1-helical blade, 2-sawtooth, 3-boss, 4-hollow shaft, 5-locating part, 6-heat exchanger tube, 7-suspension member, 8-rotating shaft.
Detailed description of the invention
A kind of implementation method of zigzag helical-blade rotor in the heat exchanger tube that the present invention relates to, as shown in Figure 4, strengthening and heat transferring device comprises rotor, locating part 5, heat exchanger tube 6, suspension member 7 and rotating shaft 8, rotating shaft 8 by some rotor inlines together, multiple rotor can be divided into a few group rotor string by locating part 5, suspension member 7 is fixed on heat exchanger tube 6 two ends, the two ends of rotating shaft 8 are separately fixed on suspension member 7, rotor of the present invention is fixed on by two helical blades 1 that hollow shaft 4 forms on the surface, and helical blade 1 top is provided with sawtooth 2.In two adjacent rotor, the boss 3 of hollow shaft 4 head of a rotor combines with another rotor hollow shaft 4 afterbody thus plays to be connected and to adjust and makes it coaxial effect.
Zigzag helical-blade rotor in heat exchanger tube of the present invention, as shown in Figure 1 to Figure 3, hollow shaft 4 cross sectional shape of rotor is open circles taper; Fig. 1 is square tooth spiral two blade rotor front view, rotor hollow shaft 4 has two helical blades, 1, two helical blades 1 symmetrical.Helical blade 1 top is provided with equally distributed sawtooth 2.Fig. 2 is square tooth spiral two blade rotor left view, and the equally distributed sawtooth that helical blade 1 surface is arranged is alternately to bending right and left; Be square tooth two helical-blade rotor partial schematic diagram shown in Fig. 3, the equally distributed sawtooth that helical blade 1 surface is provided with several is alternately to front and bend backward.
In heat exchanger tube of the present invention in zigzag helical-blade rotor, heat-transfer fluid in heat exchanger tube 6 produces axial force and rotating torque to rotor in flow process, helical blade 1 makes direction of flow change, form flow-disturbing, helical blade 1 around hollow shaft 4 in the shape of a spiral, fluid forces rotor turns, the mixed flow of heat-transfer fluid self have also been obtained reinforcement, thus reaches augmentation of heat transfer and the object of prevention dirt deposition.Heat-transfer fluid flows through helical blade 1 top sawtooth 2 can make the radial motion of fluid mass between blade and blade be strengthened, increase flow disturbance, fluid can more effectively spread along blade tip to surrounding, the laminar boundary layer of near-wall heat-transfer fluid is produced and impacts, thus destroy the laminar boundary layer of heat-transfer fluid, produce significant field coordination augmentation of heat transfer effect.And reach and stop the formation of dirt and the object of deposition.
Claims (2)
1. zigzag helical-blade rotor in heat exchanger tube, it is characterized in that: by hollow shaft and top for form alternately to front and recurvate zigzag helical blade, and sawtooth is uniformly distributed, helical blade is positioned at hollow shaft surface, its external diameter is less than heat exchanger tube internal diameter, helical blade surface is smooth, around hollow shaft in the shape of a spiral; Hollow shaft is the cylinder of a band centre bore, and connecting axle can pass through the centre bore of hollow shaft, and hollow shaft one end is the head with boss, and the hollow shaft other end is afterbody, and afterbody is the groove concentric with boss, and tail dimension can coordinate with boss.
2. zigzag helical-blade rotor in heat exchanger tube according to claim 1, is characterized in that: hollow shaft and helical blade adopt Heat Conduction Material make or plate one deck Heat Conduction Material at rotor surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510173704.3A CN104764355A (en) | 2015-04-14 | 2015-04-14 | Zigzag spiral blade rotor inside heat exchange tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510173704.3A CN104764355A (en) | 2015-04-14 | 2015-04-14 | Zigzag spiral blade rotor inside heat exchange tube |
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| CN104764355A true CN104764355A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510173704.3A Pending CN104764355A (en) | 2015-04-14 | 2015-04-14 | Zigzag spiral blade rotor inside heat exchange tube |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107115828A (en) * | 2017-06-17 | 2017-09-01 | 福建德兴节能科技有限公司 | Efficient catalytic device and application thereof |
| CN107131785A (en) * | 2017-06-17 | 2017-09-05 | 福建德兴节能科技有限公司 | High-efficiency cyclone flow spoiler |
| CN107966033A (en) * | 2017-11-24 | 2018-04-27 | 桂林市雁山区教育局教学研究室 | A kind of flabellum cooling device |
| CN110806134A (en) * | 2019-11-18 | 2020-02-18 | 榆林学院 | Sawtooth shuttle-shaped fan inner member heat exchanger device and heat exchange system |
| CN111156854A (en) * | 2020-02-25 | 2020-05-15 | 西安绿动透平技术有限公司 | Automatic cleaning robot for tube inner wall surface of tube shell type heat exchanger |
| CN111578770A (en) * | 2020-04-29 | 2020-08-25 | 南京理工大学 | Cooling device used under high-strength heat flux density |
| CN112924341A (en) * | 2020-03-23 | 2021-06-08 | 大连理工大学 | Experimental device for controllable micron order granule torrent of humiture is reunited |
| CN114439451A (en) * | 2022-01-19 | 2022-05-06 | 北京科技大学 | System for collecting leaching solution and lifting to ground surface and using method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4794980A (en) * | 1987-11-16 | 1989-01-03 | Raydot Incorporated | Air to air heat exchanger |
| CN101881571A (en) * | 2009-05-06 | 2010-11-10 | 通用电气公司 | Fin-tube heat exchanger |
| CN101968332A (en) * | 2010-09-20 | 2011-02-09 | 北京华夏壹泰科技有限公司 | EHT (Extra High Tension) self-cleaning energy-saving environment-friendly device and manufacture method thereof |
| CN102080944A (en) * | 2011-03-03 | 2011-06-01 | 北京华夏壹泰科技有限公司 | Heat exchange tube internal radial direction ladder-type rotor |
| CN102102961A (en) * | 2009-12-16 | 2011-06-22 | 北京化工大学 | Self rotation type rotor connection structure in heat exchange tube |
| CN202204369U (en) * | 2011-07-04 | 2012-04-25 | 南京华夏壹泰节能科技有限公司 | Field synergy strengthening heat transfer on-line continuous washing low water resistance rotor in heat transfer pipe |
| CN103225980A (en) * | 2013-05-02 | 2013-07-31 | 北京化工大学 | Multi-axis low-rotating-speed spiral rotor in heat exchange tube |
-
2015
- 2015-04-14 CN CN201510173704.3A patent/CN104764355A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4794980A (en) * | 1987-11-16 | 1989-01-03 | Raydot Incorporated | Air to air heat exchanger |
| CN101881571A (en) * | 2009-05-06 | 2010-11-10 | 通用电气公司 | Fin-tube heat exchanger |
| CN102102961A (en) * | 2009-12-16 | 2011-06-22 | 北京化工大学 | Self rotation type rotor connection structure in heat exchange tube |
| CN101968332A (en) * | 2010-09-20 | 2011-02-09 | 北京华夏壹泰科技有限公司 | EHT (Extra High Tension) self-cleaning energy-saving environment-friendly device and manufacture method thereof |
| CN102080944A (en) * | 2011-03-03 | 2011-06-01 | 北京华夏壹泰科技有限公司 | Heat exchange tube internal radial direction ladder-type rotor |
| CN202204369U (en) * | 2011-07-04 | 2012-04-25 | 南京华夏壹泰节能科技有限公司 | Field synergy strengthening heat transfer on-line continuous washing low water resistance rotor in heat transfer pipe |
| CN103225980A (en) * | 2013-05-02 | 2013-07-31 | 北京化工大学 | Multi-axis low-rotating-speed spiral rotor in heat exchange tube |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107115828A (en) * | 2017-06-17 | 2017-09-01 | 福建德兴节能科技有限公司 | Efficient catalytic device and application thereof |
| CN107131785A (en) * | 2017-06-17 | 2017-09-05 | 福建德兴节能科技有限公司 | High-efficiency cyclone flow spoiler |
| CN107131785B (en) * | 2017-06-17 | 2023-05-16 | 福建德兴节能科技有限公司 | High-efficiency rotational flow spoiler |
| CN107966033A (en) * | 2017-11-24 | 2018-04-27 | 桂林市雁山区教育局教学研究室 | A kind of flabellum cooling device |
| CN110806134A (en) * | 2019-11-18 | 2020-02-18 | 榆林学院 | Sawtooth shuttle-shaped fan inner member heat exchanger device and heat exchange system |
| CN111156854A (en) * | 2020-02-25 | 2020-05-15 | 西安绿动透平技术有限公司 | Automatic cleaning robot for tube inner wall surface of tube shell type heat exchanger |
| CN112924341A (en) * | 2020-03-23 | 2021-06-08 | 大连理工大学 | Experimental device for controllable micron order granule torrent of humiture is reunited |
| CN111578770A (en) * | 2020-04-29 | 2020-08-25 | 南京理工大学 | Cooling device used under high-strength heat flux density |
| CN114439451A (en) * | 2022-01-19 | 2022-05-06 | 北京科技大学 | System for collecting leaching solution and lifting to ground surface and using method |
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Application publication date: 20150708 |