CN103411465A - Penetration type concave-convex blade rotor inside heat exchange pipe - Google Patents
Penetration type concave-convex blade rotor inside heat exchange pipe Download PDFInfo
- Publication number
- CN103411465A CN103411465A CN2013103774601A CN201310377460A CN103411465A CN 103411465 A CN103411465 A CN 103411465A CN 2013103774601 A CN2013103774601 A CN 2013103774601A CN 201310377460 A CN201310377460 A CN 201310377460A CN 103411465 A CN103411465 A CN 103411465A
- Authority
- CN
- China
- Prior art keywords
- rotor
- hollow shaft
- blade
- heat exchanger
- exchanger tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a penetration type concave-convex blade rotor inside a heat exchange pipe. The penetration type concave-convex blade rotor inside the heat exchange pipe is formed by hollow shafts and spiral blades; groove structures are formed in back water sides of the spiral blades along the spiral directions of the blades; holes are formed in cross sections of the blades; the holes extend along the spiral directions of the blades to penetrate the whole blades to form into penetration holes; flow disturbance shafts namely projections are formed by the wall thickness of the penetration holes on the blades. The perturbance of the flow disturbance shafts and the concave-convex fluctuation functions of the grooves which are formed in the back water sides of the blades continuously act on the heat transmission fluid along the facing water sides, so that the radial speed and the tangential speed of the fluid on two sides of the blades are increased and the flow disturbance effect is increased. According to the penetration type concave-convex blade rotor inside the heat exchange pipe, the rotor can play a good self-centering role during rotating in the fluid due to the fact that the fluid has a suspension force function on the penetration holes when flowing through the penetration holes, scrapping between the blade tops and the pipe walls is avoided, the service life of the rotor is prolonged, mass and energy exchange between fluids inside the pipe is greatly enforced due to the separation effect of the penetration holes, and antiscale, descaling and heat transmission reinforcement functions are achieved.
Description
Technical field
The present invention relates to a kind of interior inserted component that is applied to augmentation of heat transfer and antifouling scrubbing in heat exchanger tube in the equipment such as shell-and-tube heat exchanger, heat exchange reactor, be particularly related to and a kind ofly take the heat exchanger tube internal heat transfer fluid and be power, that realizes the cleaning and heat-transfer enhancing function runs through the concavo-convex blade rotor of type.
Background technology
Energy-saving and emission-reduction are the key technologies that the whole world is all paid much attention to, in various fields such as oil, chemical industry, thermoelectricity, nuclear power, metallurgy, light industry, aviation and boats and ships vehicles, all to be applied to many heat exchangers, what wherein be most widely used is shell-and-tube heat exchanger, but the problem of ubiquity contamination fouling in these heat exchanger tube inwalls, cause fluid transporting resistance in pipeline to increase, meeting blocking pipe when serious, heat transfer property greatly descends simultaneously; Produce great energy waste, in addition, dirt generally has corrosivity, can cause wall erosion, thereby make fluid leakage cause major safety risks, therefore traditional treating method is forced to exactly take stop production and cleans, and has so not only stopped over the manufacturing schedule of factory, also needs simultaneously to pay expensive cleaning charge and uses; In order to address these problems better, people study on-line automatic augmentation of heat transfer that employing do not stop production and various ways and the device of descaling and antiscaling always.Many antiscaling, descaling method and apparatus have appearred in recent years, one of them utilizes fluid to promote the method that the spiral band rotation can realize online automatic desludging, Chinese patent application number is: CN1424554, patent name is the innovation and creation of " the spiral enhanced heat exchange of dual turbulent and automatic descaling apparatus ", this device is as augmentation of heat transfer and automatic desludging thereof, include spiral band, fixed mount, spiral band is arranged in helix tube, utilizes by the heat exchanger tube inner fluid and flows and drive the spiral band rotation.Because spiral band is a whole band, heat exchanger tube, straight not after processing is installed, can produce inhomogeneous gap between spiral band and heat exchanger tube inwall, and the scale removal effect of tie is little and inhomogeneous like this, and descale effect is undesirable.In spiral band method apparatus for eliminating sludge, spiral band is all single-ended fixing, and the other end freely swings, and the radial dimension of distortion band is less than the internal diameter of heat-transfer pipe.Comprehensively once spiral band has following major defect: (1) tie is an integral body, heat-transfer pipe is directly swiped, and damage heat exchanger tube inwall; (2) promote tie during Fluid Flow in A and rotate and need larger driving moment, consume more fluid dynamic energy; (3) service life of the bearing of single-ended fixedly use is short; (4) the field cooperative reinforcing heat-transfer effect of tie generation is not remarkable.China Patent No. is 200520127121.9 afterwards, the patent application of denomination of invention for " rotator type cleaning and heat-transfer enhancing device " disclosed, this device is to consist of fixed mount, rotor, flexible shaft and stay pipe, and two fixed mounts are separately fixed at the two ends of heat exchanger tube; The outer surface of rotor has scroll, and centre bore is arranged on rotor; Bracing frame is located between rotor and fixed mount, and centre bore and stay pipe that flexible shaft passes rotor are fixed on two fixed mounts.This device has the function of on-line automatic antiscaling, descaling and augmentation of heat transfer, and fluid is in the situation that following current or adverse current in heat-transfer pipe all have the effect of antiscaling, descaling and augmentation of heat transfer.But shortcoming be certain fluid by the time, the rotary speed of rotor is that the lead angle by the spiral shell rib determines, fast in the rotary speed of spiral shell rib helical pitch hour rotor, the resistance of convection cell increases thereupon simultaneously; For the ease of the installation of rotor, the external diameter surface of rotor and heat exchanger tube inside diameter surface have larger distance, and the augmentation of heat transfer of rotor and antiscaling, descaling ability have been subject to certain restriction like this.In addition, rotor can produce and rock in rotation process, and its blade tip will produce scraping with the heat exchanger tube inwall, also can reduce its service life, therefore rotor should have centering effect preferably in heat exchanger tube, to reduce the scraping effect of itself and heat exchanger tube inwall, extends its service life.
Summary of the invention
The objective of the invention is to design a kind of rotor of new construction, the upstream face of this rotor blade is provided with the flow-disturbing axle, back side arranges groove, this construction rotor also has the effect of antiscaling, descaling when improving the heat exchanger tube heat transfer property, and flow-disturbing axle place arranges through hole vertically, thereby extended the service life of this rotor, and the flow-disturbing effect of further reinforced pipe inner fluid, the enhanced heat exchange process.
The present invention is that the technical scheme that addresses the above problem employing is: in heat exchanger tube, run through the concavo-convex blade rotor of type, consist of hollow shaft and helical blade.Helical blade is positioned at the hollow shaft surface, and the helical blade external diameter is less than the heat exchanger tube internal diameter, and helical blade surface is smooth, and around hollow shaft in the shape of a spiral, and the back side of helical blade is provided with groove structure along the blade screw direction to helical blade, porose in leaf cross-section, extend along the blade screw direction in described hole, runs through whole blade, forms through hole, and the wall thickness of through hole forms on blade projection is the flow-disturbing axle, the seamed edge that helical blade contacts with current at first carries out bevelling or rounding, hollow shaft has the hole communicated with described hollow shaft endoporus in the circumferential direction of the circle equably away from inlet end, by changing helical blade along the axial helical angle of hollow shaft, axial length, along hollow shaft height radially, the number of flow-disturbing axle on blade, the angle of flow-disturbing axle and hollow shaft, the flow-disturbing axle is along the axial length of hollow shaft, the number of groove, the angle of groove and hollow shaft, groove is along the axial length of hollow shaft, the position of through hole and size change the turning moment of fluid to rotor, helical blade will be convenient to the installation of rotor in heat exchanger tube in the combination fixed form on hollow shaft.When heat-transfer fluid flows through helical blade, can produce axial force to rotor, heat-transfer fluid is mobile changes direction of flow thereby helical blade hinders, form mixed flow, helical blade is under the fluid impetus, promoting whole rotor rotates, having strengthened the tangential of heat-transfer fluid flows, thereby reach augmentation of heat transfer and stop the formation of dirt and the purpose of deposition, helical blade is in rotation process simultaneously, can make heat-transfer fluid along the blade upstream face, constantly pass through the further disturbance of flow-disturbing axle, and the concavo-convex fluctuating effect through blade back water surface groove, increase blade two side liquids radially and tangential velocity, strengthen the flow-disturbing effect.In addition, rotor is in rotary course, rely on flow fluid suspending power effect to through hole when through hole, make rotor in rotation process, have from suspending function, in the time of can in fluid, rotating, play good acting on from centering, thereby avoided the scraping effect of blade tip and heat exchanger tube inwall, the service life of Extending Rotor, simultaneously, compartmentation through through hole, tube fluid is divided into the upstream face fluid by rotor, the back side fluid, fluid and tube wall and impeller clearance fluid that through hole flows out, after each rotor, fluid after four kinds of separations mixes again, thereby greatly strengthened quality and the energy exchange between the each several part fluid in the pipe, further realize the effect of antiscaling, descaling and augmentation of heat transfer.Can, by changing helical blade along the axial helical angle of hollow shaft, axial length, along angle, the groove of number, groove and the hollow shaft of the axial length of hollow shaft, groove, change fluid turning moment to rotor along position and the size of the axial length of hollow shaft, through hole along angle, the flow-disturbing axle of number, flow-disturbing axle and the hollow shaft of flow-disturbing axle on radially height of hollow shaft, blade, make rotor rotating flow in heat exchanger tube smooth.
In heat exchanger tube of the present invention, run through the concavo-convex blade rotor of type, along the equally distributed helical blade number of hollow shaft circumferencial direction be two, three or more.
In heat exchanger tube of the present invention, run through the concavo-convex blade rotor of type, the flow-disturbing axle number on helical blade upstream face surface is one, two or more, and the flow-disturbing axle is parallel with hollow shaft or form an angle, and the distance of adjacent flow-disturbing between centers equates or be certain proportion to distribute.
In heat exchanger tube of the present invention, run through the concavo-convex blade rotor of type, the groove number on helical blade back side surface is one, two or more, and groove is parallel with hollow shaft or form an angle, and the distance between adjacent grooves equates or be certain proportion to distribute.
In heat exchanger tube of the present invention, run through the concavo-convex blade rotor of type, the cross sectional shape of through hole is circular or oval, and the through hole number that single flow-disturbing axle is corresponding is one, two or more, through hole kernel of section and flow-disturbing shaft section center superposition or skew certain distance.
For prevent rotor in rotation process along the rotating shaft axial float, the hollow shaft two ends of described rotor are provided with coaxial configuration, the combination of the coaxial configuration of two adjacent rotor head and the tail, realized the axial location between rotor.The hollow shaft coaxial configuration of rotor can be ball-and-socket mode, circular cone mode, buckle mode or universal joint mode.Before and after the flow-disturbing axle of two rotors coordinating or groove position, number, axial length and with the hollow shaft angle can be identical or different.
In heat exchanger tube of the present invention, run through the concavo-convex blade rotor of type, its hollow shaft cross sectional shape is the open circles taper, hollow cylinder, hollow nodal figure or hollow many prismatics, the rotor hollow shaft has cross sectional shape for semicircle away from inlet end, oval, rectangle or the trapezoidal hole communicated with the hollow shaft endoporus, this hole length in axial direction is greater than the length of hollow shaft water inlet end place concave station, this hole can make to flow in the space of heat-transfer fluid between hollow shaft and rotating shaft, and the dirt between drive hollow shaft and rotating shaft is along with heat-transfer fluid is discharged, thereby prevented the deposition of dirt, saved simultaneously material.
In heat exchanger tube of the present invention, run through the concavo-convex blade rotor of type, the whole string that can join end to end is threaded onto and connects on axis, and connecting axis can be the pole of rigidity, can be also flexible tightrope; Also can be divided into identical or different some groups of rotor quantity by locating part, rotor is evenly rotated.
In heat exchanger tube of the present invention, run through the blade of the concavo-convex blade rotor of type and hollow shaft by macromolecular material, polymer-based composite, metal or ceramic material.
The helical blade of described rotor is along the axial helical angle of hollow shaft, axial length, along hollow shaft height radially, the number of flow-disturbing axle on blade, the angle of flow-disturbing axle and hollow shaft, the flow-disturbing axle is along the axial length of hollow shaft, the number of groove, the angle of groove and hollow shaft, groove is along the axial length of hollow shaft, the position of through hole and size, can be according to the heat exchanger tube internal diameter, the intensity of the working condition such as velocity of medium and rotor self in pipe, wearability is processed into original definite in conjunction with manufacture, between adjacent rotor, can take synchronous rotary or independent rotational structure.
The invention has the beneficial effects as follows: the rotor blade upstream face of 1, inventing has flow-disturbing axle construction, can effectively increase tangential velocity and the radial velocity of upstream face fluid, strengthens the mixed flow effect, thereby improves heat conduction reinforced ability; 2, the rotor blade back side of inventing has groove structure, through the concavo-convex fluctuating effect of blade back water surface groove, increase blade back water surface fluid radially and tangential velocity, further strengthen the flow-disturbing effect, improve heat conduction reinforced ability; 3, the rotor blade of inventing is provided with the through hole structure, rotor is in rotary course, rely on flow fluid suspending power effect to through hole when through hole, make rotor in rotation process, have from suspending function, in the time of can in fluid, rotating, play good acting on from centering, thereby avoided the scraping effect of blade tip and heat exchanger tube inwall, the service life of Extending Rotor; 4, the hole communicated with the hollow shaft endoporus that has away from inlet end of single rotor hollow shaft can make heat-transfer fluid flow between hollow shaft inside and rotating shaft, driving dirt discharges from the space between hollow shaft inside and rotating shaft, prevented the deposition of dirt, saved rotor material, provided cost savings; 5, the compartmentation of process through hole, tube fluid is divided into fluid and tube wall and the impeller clearance fluid of upstream face fluid, back side fluid, through hole outflow by rotor, after each rotor, fluid after four kinds of separations mixes again, thereby greatly strengthened quality and the energy exchange between the each several part fluid in the pipe, further realized the effect of antiscaling, descaling and augmentation of heat transfer; 6, the rotor blade of inventing is provided with the through hole structure, has saved rotor material, provides cost savings.
The accompanying drawing explanation
Fig. 1 runs through the front view of the concavo-convex blade rotor of type in heat exchanger tube of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the three-dimensional structure schematic diagram of Fig. 1;
Fig. 4 runs through the concavo-convex blade rotor mounting structure of type schematic diagram in heat exchanger tube of the present invention;
In figure, 1-helical blade, 2-flow-disturbing axle, 3-through hole, 4-hollow shaft, 5-ball-and-socket boss, 6-groove, 7-ball-and-socket concave station, the hole that 8-communicates, 9-heat exchanger tube, 10-suspension member, 11-locating part, 12-rotating shaft
The specific embodiment
As shown in Figure 5, a kind of implementation method that runs through the concavo-convex blade rotor of type in a kind of heat exchanger tube the present invention relates to, strengthening and heat transferring device comprises rotor, heat exchanger tube 9, suspension member 10, locating part 11 and rotating shaft 12, several rotors are cascaded by rotating shaft 12, locating part 11 is divided into a few group rotor strings by a plurality of rotors, suspension member 10 is fixed on heat exchanger tube 9 two ends, the two ends of rotating shaft 12 are separately fixed on suspension member 10, rotor of the present invention is fixed on and is formed on hollow shaft 4 surfaces by the helical blade 1 of some, the back side of helical blade 1 is provided with groove 6 along the blade screw direction, porose in leaf cross-section, extend along the blade screw direction in described hole, runs through whole blade, forms through hole 3, the wall thickness of through hole forms on blade projection is flow-disturbing axle 2, the hole 8 that also has ball-and-socket boss 5, ball-and-socket concave station 7 on hollow shaft 4 and communicate with hollow shaft 4 endoporus.In two adjacent rotor, thereby the ball-and-socket boss 5 of hollow shaft 4 heads of a rotor and the ball-and-socket concave station 7 of another rotor afterbody combine to play and are connected and adjust the effect that makes it coaxial, this structure is also a kind of flexible connecting structure that can adapt to heat exchanger tube 9 knees, this structure is except can adopting the ball-and-socket mode, can also adopt circular cone mode, buckle mode and direction joint mode, can also adopt planar structure in the less demanding situation of axiality.
As shown in Figure 1 to Figure 3, Fig. 1 runs through the front view of the concavo-convex blade rotor of type in heat exchanger tube of the present invention; Fig. 2 is the top view of Fig. 1; Fig. 3 is the three-dimensional structure schematic diagram of Fig. 1, the upstream face that runs through the concavo-convex blade rotor of type is provided with a flow-disturbing axle, back side is provided with three grooves, and the spacing difference of two adjacent grooves, blade is provided with a through hole, the through hole cross sectional shape is oval, through hole kernel of section and flow-disturbing axle off-centring certain distance.
In the present invention, when the heat-transfer fluid in heat exchanger tube 9 flows through helical blade 1, can produce axial force to rotor, heat-transfer fluid is mobile changes direction of flow thereby helical blade 1 hinders, form mixed flow, helical blade 1 is under the fluid impetus, promoting whole rotor rotates, having strengthened the tangential of heat-transfer fluid flows, thereby reach augmentation of heat transfer and stop the formation of dirt and the purpose of deposition, helical blade 1 is in rotation process simultaneously, can make heat-transfer fluid along helical blade 1 upstream face, constantly pass through the further disturbance of flow-disturbing axle 2, and the concavo-convex fluctuating effect through helical blade 1 back side groove 6, increase blade two side liquids radially and tangential velocity, strengthen the flow-disturbing effect.In addition, rotor is in rotary course, rely on flow fluid suspending power effect to through hole 3 when through hole 3, make rotor in rotation process, have from suspending function, in the time of can in fluid, rotating, play good acting on from centering, thereby avoided the scraping effect of helical blade 1 top and heat exchanger tube 9 inwalls, the service life of Extending Rotor, simultaneously, compartmentation through through hole 3, tube fluid is divided into the upstream face fluid by rotor, the back side fluid, fluid and tube wall and impeller clearance fluid that through hole 3 flows out, after each rotor, fluid after four kinds of separations mixes again, thereby greatly strengthened quality and the energy exchange between the each several part fluid in the pipe, further realize the effect of antiscaling, descaling and augmentation of heat transfer.Can, by changing helical blade 1 along the axial helical angle of hollow shaft 4, axial length, with angle, the flow-disturbing axle 2 of hollow shaft 4, with angle, the groove 6 of hollow shaft 4, change fluid turning moment to rotor along position and the size of the axial length of hollow shaft 4, through hole 3 along number, the groove 6 of the axial length of hollow shaft 4, groove 6 along number, the flow-disturbing axle 2 of flow-disturbing axle 2 on radially height of hollow shaft 4, blade, make rotor smooth at the interior rotating flow of heat exchanger tube 9.
Claims (10)
1. in heat exchanger tube, run through the concavo-convex blade rotor of type, it is characterized in that: be mainly to be formed by hollow shaft and helical blade, helical blade is positioned at the hollow shaft surface, the helical blade external diameter is less than the heat exchanger tube internal diameter, around hollow shaft in the shape of a spiral, and the back side of helical blade is provided with groove structure along the blade screw direction to blade; Porose in leaf cross-section, extend along the blade screw direction in described hole, runs through whole blade, forms through hole, and the wall thickness of through hole forms on blade projection is the flow-disturbing axle; The seamed edge that helical blade contacts with current at first carries out bevelling or rounding, and hollow shaft has the hole communicated with described hollow shaft endoporus in the circumferential direction of the circle equably away from inlet end.
2. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: along the equally distributed helical blade number of hollow shaft circumferencial direction be two, three or more.
3. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: the flow-disturbing axle number on helical blade upstream face surface is one, two or more, and the flow-disturbing axle is parallel with hollow shaft or form an angle, the distance of adjacent flow-disturbing between centers equates or is certain proportion to distribute.
4. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: the groove number on helical blade back side surface is one, two or more, and groove is parallel with hollow shaft or form an angle, the distance between adjacent grooves equates or is certain proportion to distribute.
5. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: the cross sectional shape of through hole is for circular or oval, the through hole number that single flow-disturbing axle is corresponding is one, two or more, through hole kernel of section and flow-disturbing shaft section center superposition or skew certain distance.
6. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: the hollow shaft two ends of described rotor are provided with coaxial configuration, severally be installed on the rotor in rotating shaft between two suspension members, the hollow shaft two ends of its rotor are provided with ball-and-socket mode, circular cone mode, buckle mode or universal joint mode coaxial configuration, the flow-disturbing axle of two rotors that front and back coordinate or the position of groove, number, axial length and with the hollow shaft angle can be identical or different.
7. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: the hollow shaft cross sectional shape of described rotor is open circles taper, hollow cylinder, hollow nodal figure or hollow many prismatics.
8. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: described hollow shaft has equably in the circumferential direction of the circle the cross sectional shape communicated with described hollow shaft endoporus and is semicircle, ellipse, rectangle or trapezoidal hole away from water inlet end.
9. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: this is described runs through the concavo-convex blade rotor of the type whole string that can join end to end and is threaded onto and connects on axis, connecting axis can be the pole of rigidity, can be also flexible tightrope; Also can be divided into identical or different some groups of rotor quantity by locating part.
10. according in claim 1 time described heat exchanger tube, running through the concavo-convex blade rotor of type, it is characterized in that: the blade of described rotor and hollow shaft are by macromolecular material, polymer-based composite, metal or ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103774601A CN103411465A (en) | 2013-08-27 | 2013-08-27 | Penetration type concave-convex blade rotor inside heat exchange pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103774601A CN103411465A (en) | 2013-08-27 | 2013-08-27 | Penetration type concave-convex blade rotor inside heat exchange pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103411465A true CN103411465A (en) | 2013-11-27 |
Family
ID=49604494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103774601A Pending CN103411465A (en) | 2013-08-27 | 2013-08-27 | Penetration type concave-convex blade rotor inside heat exchange pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103411465A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105313440A (en) * | 2015-11-27 | 2016-02-10 | 佛山市南海区三简包装有限公司 | Swirl mould pressing plate roller |
| CN106439370A (en) * | 2014-12-01 | 2017-02-22 | 宁波工程学院 | Automatic descaling valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040096320A1 (en) * | 2002-06-27 | 2004-05-20 | Yevtushenko Anatoliy A. | Multistage submersible axial-flow pump |
| CN2833494Y (en) * | 2005-10-10 | 2006-11-01 | 黄伟 | Rotor type self-cleaning enhanced heat transfer device |
| 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 |
-
2013
- 2013-08-27 CN CN2013103774601A patent/CN103411465A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040096320A1 (en) * | 2002-06-27 | 2004-05-20 | Yevtushenko Anatoliy A. | Multistage submersible axial-flow pump |
| CN2833494Y (en) * | 2005-10-10 | 2006-11-01 | 黄伟 | Rotor type self-cleaning enhanced heat transfer device |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439370A (en) * | 2014-12-01 | 2017-02-22 | 宁波工程学院 | Automatic descaling valve |
| CN105313440A (en) * | 2015-11-27 | 2016-02-10 | 佛山市南海区三简包装有限公司 | Swirl mould pressing plate roller |
| CN105313440B (en) * | 2015-11-27 | 2018-08-24 | 佛山市南海区三简包装有限公司 | A kind of cyclone-type forging printing plate roller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103411467B (en) | Low driving rotor with turbulence core and in heat exchange tube | |
| CN101210791B (en) | Self-cleaning reinforcement heat transfer low flow resistance rotor in heat-transfer pipe | |
| CN103217054A (en) | Porous screw blade rotor in heat exchange tube | |
| CN106403699B (en) | Magnetic bionic blade rotor in heat exchanger tube | |
| CN102116594B (en) | Radial asymmetric blade combined rotor in heat exchange tube | |
| CN102128559B (en) | Low driving force self-cleaning and heat transfer enhancement rotor in heat exchange tube | |
| CN103217055B (en) | Opposite-rotation-direction combined rotor in heat exchange tube | |
| CN103225980A (en) | Multi-axis low-rotating-speed spiral rotor in heat exchange tube | |
| CN102878856B (en) | Baffling and turbulence combined type enhanced heat transfer inner inserting element | |
| CN102425975B (en) | Internal grooving helical blade rotor for heat exchange tube | |
| CN102102961B (en) | Self rotation type rotor connection structure in heat exchange tube | |
| CN103411464B (en) | Through hole spring and helical blade rotor in heat exchange tube | |
| CN101915514B (en) | Semi-open-type rotor | |
| CN102102960B (en) | Combined rotor with vanes in interlaced crossover directions in heat exchange tube | |
| CN102645120A (en) | Low drive spoiler rotor in heat exchange tube | |
| CN101813437A (en) | Unit-combination type heat transfer enhancement device | |
| CN205027195U (en) | Low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube | |
| CN103411474B (en) | High flow disturbance sphere rotor inside heat exchange pipe | |
| CN103411468B (en) | Center spring and helical blade rotor in heat exchange tube | |
| CN201000303Y (en) | Self-cleaning intensify heat transfer low flow resistance rotor in heat transfer pipe | |
| CN201628513U (en) | Autorotation rotor connecting structure in heat exchange tube | |
| CN102645122A (en) | Grooving spiral curling rotor in heat exchange tube | |
| CN201583184U (en) | Combined rotor provided with blades crossed in rotary direction and arranged in heat exchange tube | |
| CN202582350U (en) | Slotted spiral curled rotor used in heat exchange tube | |
| CN103411465A (en) | Penetration type concave-convex blade rotor inside heat exchange pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131127 |