CN105135932A - Low-flow-resistance rotor for reinforcing heat transfer and scale removal/prevention in heat exchange tube - Google Patents
Low-flow-resistance rotor for reinforcing heat transfer and scale removal/prevention in heat exchange tube Download PDFInfo
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- CN105135932A CN105135932A CN201510654916.3A CN201510654916A CN105135932A CN 105135932 A CN105135932 A CN 105135932A CN 201510654916 A CN201510654916 A CN 201510654916A CN 105135932 A CN105135932 A CN 105135932A
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- hollow shaft
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- helical blade
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Abstract
The invention relates to a low-flow-resistance rotor for reinforcing heat transfer and scale removal/prevention in a heat exchange tube, which mainly comprises a hollow shaft and helical blades, wherein the hollow shaft is provided with the two or more helical blades; the helical blades are equantly arranged along the axial and circumferential direction of the hollow shaft; the helical blades have smooth surfaces, and the external diameter is slightly smaller than the internal diameter of the heat exchange tube; and the thickness of the helical blades is kept constant, and the width gradually decreases from the hollow shaft. When the fluid in the tube enters the heat exchange tube, the acting force of the fluid perpendicular to the radial direction of the helical blades enables the rotor to rotate around the hollow shaft, and the fluid in the tube forms a three-dimensional helical flow state to reinforce the turbulent intensity of the fluid and aggravate the disturbance of the boundary layer, thereby enhancing the heat transfer efficiency, improving the on-line cleaning effect, reducing the deposition of the dirt on the internal wall of the heat exchange tube and prolonging the service life of the heat exchange tube and rotor. The rotor has the advantages of simple structure, low flow resistance and high safety and reliability, and is convenient for mounting.
Description
Technical field
The present invention relates to the interior inserted component of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube, particularly one utilizes heat exchanger tube internal heat transfer fluid to be used as power, and realizes the low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling.
Background technology
Shell-and-tube heat exchanger is widely used in the fields such as thermoelectricity, nuclear power, oil, chemical industry, metallurgy, food, light industry, ship power and Aero-Space, but the problem of shell-and-tube heat exchanger ubiquity heat transfer pipe inwall contamination fouling, intraductal heat exchange efficiency is caused significantly to reduce, heat transfer property is reduced be deteriorated, fluid transporting resistance increases simultaneously, and even in pipe, Severe blockage cannot use.
Heat exchanger tube interposer Anti-fouling Technology places interposer in heat exchanger tube, force tube fluid to produce eddy flow or fluctuation, thus destroy fluid boundary layer near inside pipe wall face, stop the deposition of dirt, thus reach the object of antiscaling, descaling, also there is the effect of enhanced heat exchange simultaneously.Chinese Patent Application No. is the innovation and creation that ZL95236063.2 discloses that denomination of invention is the cleaning device of descaling and antiscaling " in the heat-transfer pipe ", the technical scheme of these innovation and creation is formed by being equiped with the twisted straps substantially mutually isometric with heat-transfer pipe in heat-transfer pipe, the radial dimension of twisted straps is less than the internal diameter of heat-transfer pipe, at heat-transfer pipe inlet end, axial restraint frame is housed, flow-in hole is had in the middle part of it, the head of axial restraint frame has an axis hole, and axis hole is built with bearing pin, and the afterbody of bearing pin is connected with twisted straps.Publication number is that in " the spiral augmentation of heat transfer of dual turbulent and the automatic descaling apparatus " of CN1424554, disclose another kind of tie form, this device has newly established helix tube, and tie is placed in helix tube, by driving tie to rotate by the fluid flowing in helix tube.Publication number is in " the rotator type cleaning and heat-transfer enhancing device " of CN2833494, disclose a kind of device be made up of rotor, bracing frame, central shaft etc., bracing frame is fixed on the two ends of heat exchanger tube, central shaft is fixed on the two ends of bracing frame, the central shaft of the centre of bracing frame installs the rotor of some, rotor rotates under action of a fluid, thus reaches the effect of augmentation of heat transfer and On Line Foul Removing Technology.
The device that above-mentioned patent is mentioned has certain antiscaling, descaling and augmentation of heat transfer effect, but spiral band is integral type tumbler, and processing and manufacturing is complicated, easily causes the scratch of exchange heat pipe, affects heat exchanger service life.Rotor lifting surface area in " rotator type cleaning and heat-transfer enhancing device " is little, and suffered driving force is little, can not better suppress fouling, and heat transfer efficiency and on-line cleaning effect do not reach best.
Summary of the invention
The object of the invention is the rotor designing a kind of new construction, this rotor structure is simple, and flow resistance is little, easy for installation, and has automatic on-line antiscaling, descaling and augmentation of heat transfer dual-use function.
For achieving the above object, the technical scheme that the present invention proposes is: the low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube, is characterized in that: critical piece comprises hollow shaft and helical blade.Described hollow shaft is provided with two or more helical blade, and helical blade divides arrangement along the axial and circumferential etc. of hollow shaft; Helical blade surface is smooth, and external diameter is slightly less than heat exchanger tube internal diameter; The thickness of helical blade keeps certain, and width is grading profile, maximum when near hollow shaft, then reduces gradually.
It is elliptic arc or circular curve that described helical blade projects on the axial cross section of hollow shaft, and often adjacent two blades rotate a circle before and after formed space around hollow shaft and are connected.
Described helical blade and hollow shaft are formed by macromolecular material, polymer-based composite, metal or ceramic material.
There is coaxial configuration at described hollow shaft two ends, and the afterbody centering of the head of the hollow shaft of each rotor and the hollow shaft of previous rotor also coordinates, and coaxial configuration can be nest ball, universal joint or buckle.
The invention has the beneficial effects as follows: 1, when tube fluid enters from heat exchanger tube, fluid orthogonal makes rotor rotate around hollow shaft in the active force of helical blade radial direction, tube fluid forms three-dimensional spiral flow regime, enhance fluid turbulence intensity, the disturbance in aggravation boundary layer, not only increases heat transfer efficiency, strengthens online cleaning effect simultaneously, reduce dirt in the deposition of heat exchanger tube inwall, extend the service life of heat exchanger tube and rotor; 2, the helical blade of rotor heat exchanging inside pipe wall in rotary course plays slight scraping action, can remove by heat exchanging inside pipe wall dirt, is conducive to the life cycle extending whole device like this, reduces cleaning frequency; 3, rotor structure of the present invention is simple, and flow resistance is little, easy for installation, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the low flow resistance rotor structural representation of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the low flow resistance rotor structure three-dimensional schematic diagram of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube of the present invention.
Fig. 4 is the low flow resistance rotor mounting structure schematic diagram of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube of the present invention.
In figure, 1-hollow shaft, 2-helical blade, 3-heat exchanger tube, 4-locating part, 5-bracing frame, 6-boss, 7-groove, 8-rotating shaft.
Detailed description of the invention
The present invention relates to a kind of implementation method of the low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube, as shown in Figure 4, strengthening and heat transferring device comprises rotor, locating part 4, heat exchanger tube 3, bracing frame 5 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 4, bracing frame 5 is fixed on heat exchanger tube 3 two ends, the two ends of rotating shaft 8 are separately fixed on bracing frame 5, and rotor of the present invention is fixed on by some helical blades 2 that hollow shaft 1 forms on the surface.In two adjacent rotor, the boss 6 of hollow shaft 1 head of a rotor combines with the groove 7 of another rotor hollow shaft 1 afterbody thus plays to be connected and to adjust and makes it coaxial effect, coaxial configuration is except boss structure, also having socket arrangement, gimbal structure, buckle structure etc., also can be simple planar structure for the occasion that rotor operation alignment is not high.
The low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube of the present invention, as shown in Figure 1 to Figure 3, hollow shaft 1 cross sectional shape of rotor is hollow cylinder; Fig. 1 is the low flow resistance rotor structural representation of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube of the present invention, hollow shaft 1 has four helical blades, 2, four helical blades 4 in hollow shaft 1 surface decile arranged distribution along the axial and circumferential directions; Fig. 2 is the low flow resistance rotor structure top view of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube of the present invention, and the width of helical blade 2 is grading profile, maximum when near hollow shaft 1, then reduces gradually; Fig. 3 is the low flow resistance rotor schematic three dimensional views of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube of the present invention, fluid in heat exchanger tube 3 produces axial force and rotating torque to rotor in flow process, tube fluid forms three-dimensional spiral type flow regime, enhance the turbulence intensity of fluid, be thinned boundary layer thickness, and slight scraping action is served to tube wall, reach the object of augmentation of heat transfer and antiscaling, descaling thus.
The low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube that the present invention relates to, the length of its single rotor, rotate the parameters such as the angle that outside diameter and helical blade tilt, can determine according to situations such as condition of work and manufacturing cost such as velocity of medium in heat-transfer pipe internal diameter, pipe, both can take the connected mode of synchronous rotary between adjacent rotor, also can adopt the independent structure rotated separately.
Claims (4)
1. the low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling in heat exchanger tube, is characterized in that: critical piece comprises hollow shaft and helical blade; Described hollow shaft is provided with two or more helical blade, and helical blade divides arrangement along the axial and circumferential etc. of hollow shaft; Helical blade surface is smooth, and external diameter is slightly less than heat exchanger tube internal diameter; The thickness of helical blade keeps certain, and width is grading profile, maximum when near hollow shaft, then reduces gradually.
2. the low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube according to claim 1, it is characterized in that, it is elliptic arc or circular curve that described helical blade projects on the axial cross section of hollow shaft, and often adjacent two blades rotate a circle before and after formed space around hollow shaft and are connected.
3. the low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube according to claim 1, it is characterized in that, described helical blade and hollow shaft are formed by macromolecular material, polymer-based composite, metal or ceramic material.
4. the low flow resistance rotor of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube according to claim 1, it is characterized in that, there is coaxial configuration at hollow shaft two ends, the afterbody centering of the head of the hollow shaft of each rotor and the hollow shaft of previous rotor also coordinates, and coaxial configuration can be nest ball, universal joint or buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510654916.3A CN105135932A (en) | 2015-10-12 | 2015-10-12 | Low-flow-resistance rotor for reinforcing heat transfer and scale removal/prevention in heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510654916.3A CN105135932A (en) | 2015-10-12 | 2015-10-12 | Low-flow-resistance rotor for reinforcing heat transfer and scale removal/prevention in heat exchange tube |
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| Publication Number | Publication Date |
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| CN105135932A true CN105135932A (en) | 2015-12-09 |
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| CN201510654916.3A Pending CN105135932A (en) | 2015-10-12 | 2015-10-12 | Low-flow-resistance rotor for reinforcing heat transfer and scale removal/prevention in heat exchange tube |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949448A (en) * | 2017-05-09 | 2017-07-14 | 吉林省圣诺尔新能源科技股份有限公司 | A kind of helical blade type flue tube boiler |
| CN107167023A (en) * | 2017-06-07 | 2017-09-15 | 江苏大学 | A kind of bionical enhanced heat transfer structure of dendroid |
| CN107626694A (en) * | 2017-10-11 | 2018-01-26 | 山东省交通科学研究院 | One kind is used for ultrasonic acoustic test tube dredging cleaning device and application method |
| CN107917635A (en) * | 2017-11-16 | 2018-04-17 | 杜健敏 | A kind of heat exchanger tube and heat exchanger |
| CN108468897A (en) * | 2018-05-31 | 2018-08-31 | 辽宁华燃燃气设备有限公司 | A kind of efficient natural gas directed flow heating system |
| CN110961434A (en) * | 2019-12-24 | 2020-04-07 | 山东丰获机械制造有限公司 | Center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts |
| 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 |
| CN111299299A (en) * | 2019-12-24 | 2020-06-19 | 山东丰获机械制造有限公司 | Shaft stirring wing structure of chemical tank for processing and treating culture waste and slaughter byproduct feather |
| CN113203303A (en) * | 2021-04-26 | 2021-08-03 | 淮阴工学院 | Cleaning and scale preventing device for heat exchanger, heat exchanger and cleaning and scale preventing method for heat exchanger |
| CN113375499A (en) * | 2021-06-18 | 2021-09-10 | 宝武集团鄂城钢铁有限公司 | Automatic deslagging device of pipeline, heat exchanger pipe and self-cleaning method |
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| JP2002316113A (en) * | 2001-04-18 | 2002-10-29 | Daiya Chemical Kk | Tube cleaning tool |
| CN1621165A (en) * | 2003-11-26 | 2005-06-01 | 株洲工学院帅科机械清洗研究所 | Auto rotating type cleaning and heat transferring intensify technology for double face serrated form flat belt inside pipe |
| CN201000303Y (en) * | 2006-12-29 | 2008-01-02 | 北京华夏英蓝科技发展有限公司 | Self-cleaning intensify heat transfer low flow resistance rotor in heat transfer pipe |
| CN101915514A (en) * | 2010-08-06 | 2010-12-15 | 北京化工大学 | Semi-open-type rotor |
| CN102128559A (en) * | 2010-01-14 | 2011-07-20 | 北京化工大学 | Low driving force self-cleaning and heat transfer enhancement rotor in heat exchange tube |
| CN202166358U (en) * | 2011-07-04 | 2012-03-14 | 南京华夏壹泰节能科技有限公司 | Rigid connection reinforcement heat transfer device |
| CN205027195U (en) * | 2015-10-12 | 2016-02-10 | 郑州大学 | Low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube |
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2015
- 2015-10-12 CN CN201510654916.3A patent/CN105135932A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002316113A (en) * | 2001-04-18 | 2002-10-29 | Daiya Chemical Kk | Tube cleaning tool |
| CN1621165A (en) * | 2003-11-26 | 2005-06-01 | 株洲工学院帅科机械清洗研究所 | Auto rotating type cleaning and heat transferring intensify technology for double face serrated form flat belt inside pipe |
| CN201000303Y (en) * | 2006-12-29 | 2008-01-02 | 北京华夏英蓝科技发展有限公司 | Self-cleaning intensify heat transfer low flow resistance rotor in heat transfer pipe |
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| CN101915514A (en) * | 2010-08-06 | 2010-12-15 | 北京化工大学 | Semi-open-type rotor |
| CN202166358U (en) * | 2011-07-04 | 2012-03-14 | 南京华夏壹泰节能科技有限公司 | Rigid connection reinforcement heat transfer device |
| CN205027195U (en) * | 2015-10-12 | 2016-02-10 | 郑州大学 | Low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949448A (en) * | 2017-05-09 | 2017-07-14 | 吉林省圣诺尔新能源科技股份有限公司 | A kind of helical blade type flue tube boiler |
| CN107167023A (en) * | 2017-06-07 | 2017-09-15 | 江苏大学 | A kind of bionical enhanced heat transfer structure of dendroid |
| CN107626694A (en) * | 2017-10-11 | 2018-01-26 | 山东省交通科学研究院 | One kind is used for ultrasonic acoustic test tube dredging cleaning device and application method |
| CN107917635A (en) * | 2017-11-16 | 2018-04-17 | 杜健敏 | A kind of heat exchanger tube and heat exchanger |
| CN108468897A (en) * | 2018-05-31 | 2018-08-31 | 辽宁华燃燃气设备有限公司 | A kind of efficient natural gas directed flow heating system |
| CN110961434A (en) * | 2019-12-24 | 2020-04-07 | 山东丰获机械制造有限公司 | Center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts |
| CN111299299A (en) * | 2019-12-24 | 2020-06-19 | 山东丰获机械制造有限公司 | Shaft stirring wing structure of chemical tank for processing and treating culture waste and slaughter byproduct feather |
| CN111299299B (en) * | 2019-12-24 | 2023-08-22 | 山东丰获机械制造有限公司 | Central shaft stirring wing structure of chemical tank for processing and treating culture wastes and slaughter byproduct feathers |
| 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 |
| CN113203303A (en) * | 2021-04-26 | 2021-08-03 | 淮阴工学院 | Cleaning and scale preventing device for heat exchanger, heat exchanger and cleaning and scale preventing method for heat exchanger |
| CN113375499A (en) * | 2021-06-18 | 2021-09-10 | 宝武集团鄂城钢铁有限公司 | Automatic deslagging device of pipeline, heat exchanger pipe and self-cleaning method |
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Application publication date: 20151209 |