CN205027195U - Low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube - Google Patents
Low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube Download PDFInfo
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- CN205027195U CN205027195U CN201520786069.1U CN201520786069U CN205027195U CN 205027195 U CN205027195 U CN 205027195U CN 201520786069 U CN201520786069 U CN 201520786069U CN 205027195 U CN205027195 U CN 205027195U
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- hollow shaft
- helical blade
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- flow resistance
- heat transfer
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Abstract
The utility model relates to a low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube, essential element include hollow shaft and helical blade, the hollow shaft on be provided with two or more helical blade, helical blade along branch ranges such as the axial of hollow shaft and circumference, the helical blade surface is smooth, and the external diameter slightly is lighter than the heat exchange tube internal diameter, helical blade's thickness keeps necessarily, and the width is gradational shape, and is the biggest when being close to the hollow shaft, then reduces gradually. The utility model discloses in when intraductal fluid gets into from the heat exchange tube, the radial effort of fluid perpendicular to helical blade makes the rotor rotatory around the hollow shaft, intraductal fluid forms three -dimensional spiral flow state, reinforcing fluid turbulence intensity, the disturbance in aggravation boundary layer, heat transfer efficiency has not only been improved, the online clean effect of reinforcing simultaneously, reduce the deposit of dirt at the heat exchange tube inner wall, the life of heat exchange tube and rotor has been prolonged, and rotor structure is simple, small flow resistance, easy installation, safety and reliability.
Description
Technical field
The utility model relates to the interior inserted component of augmentation of heat transfer and antiscaling, descaling in a kind of heat exchanger tube, and 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 purpose of this utility model designs a kind of rotor of new construction, and 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 utility model 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 beneficial effects of the utility model are: 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 utility model.
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 utility model.
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 utility model.
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 utility model 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 utility model 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 utility model, 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 utility model, 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 utility model, 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 utility model, 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 utility model 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 |
|---|---|---|---|
| CN201520786069.1U CN205027195U (en) | 2015-10-12 | 2015-10-12 | Low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786069.1U CN205027195U (en) | 2015-10-12 | 2015-10-12 | Low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205027195U true CN205027195U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520786069.1U Expired - Fee Related CN205027195U (en) | 2015-10-12 | 2015-10-12 | Low flow resistance rotor of enhanced heat transfer and scale control scale removal in heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205027195U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135932A (en) * | 2015-10-12 | 2015-12-09 | 郑州大学 | Low-flow-resistance rotor for reinforcing heat transfer and scale removal/prevention in heat exchange tube |
| CN110274399A (en) * | 2019-06-28 | 2019-09-24 | 朱宏泽 | A kind of heating device that can be cleaned automatically on solar water heater |
| CN110360856A (en) * | 2019-06-27 | 2019-10-22 | 安徽科技学院 | A kind of liquid metal convection experiment reverse flow heat exchanger |
| CN110833701A (en) * | 2019-11-20 | 2020-02-25 | 榆林学院 | Device for purifying acetic acid in vinyl acetate production by ethylene method |
-
2015
- 2015-10-12 CN CN201520786069.1U patent/CN205027195U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135932A (en) * | 2015-10-12 | 2015-12-09 | 郑州大学 | Low-flow-resistance rotor for reinforcing heat transfer and scale removal/prevention in heat exchange tube |
| CN110360856A (en) * | 2019-06-27 | 2019-10-22 | 安徽科技学院 | A kind of liquid metal convection experiment reverse flow heat exchanger |
| CN110360856B (en) * | 2019-06-27 | 2021-03-26 | 安徽科技学院 | Reflux heat exchanger for liquid metal convection experiment |
| CN110274399A (en) * | 2019-06-28 | 2019-09-24 | 朱宏泽 | A kind of heating device that can be cleaned automatically on solar water heater |
| CN110274399B (en) * | 2019-06-28 | 2021-12-03 | 台州市余华纸箱有限公司 | Heating device capable of being automatically cleaned and used on solar water heater |
| CN110833701A (en) * | 2019-11-20 | 2020-02-25 | 榆林学院 | Device for purifying acetic acid in vinyl acetate production by ethylene method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20161012 |