CN100376859C - Heat-transfer fluid power plastic helical dirt cleaning torque reinforcing method - Google Patents
Heat-transfer fluid power plastic helical dirt cleaning torque reinforcing method Download PDFInfo
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- CN100376859C CN100376859C CNB031245420A CN03124542A CN100376859C CN 100376859 C CN100376859 C CN 100376859C CN B031245420 A CNB031245420 A CN B031245420A CN 03124542 A CN03124542 A CN 03124542A CN 100376859 C CN100376859 C CN 100376859C
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Abstract
A plastic-coated helical line or a plastic helical twisted strip in a heat transfer tube uses the force of hot fluid in the tube as dynamic force to drive rotary vibration so as to carry out automatic scale removal and scale prevention without the abrasion of the wall of the pipe. The guiding function of the plastic-coated helical line or of the plastic helical twisted strip causes the hot fluid in the tube to flow helically so as to enhance convective heat transfer, and the heat transfer coefficient can be increased by about 30%. The impact force moment generated by a helical tube orifice fixing device and a helical dynamic force wheel greatly intensifies the rotation force moment of the plastic-coated helical line or of the plastic helical twisted strip, so that the present invention can be widely used in all kinds of tubular heat-transfer equipment in which the flow velocity is low and above 0.5 m/s. The technology has the advantages of simple structure, capability of being used in both new and old equipment, easy use and high comprehensive benefit.
Description
Technical field
What the present invention relates to is the Fouling Cleaning plastic spiral device that a kind of heat-transfer fluid power is strengthened.It is applicable to the various heat-transfer equipments of tubular structure, as descaling and antiscaling and heat conduction reinforced in the pipe of equipment such as heat exchanger, condenser, evaporimeter.
Background technology
Chinese patent ZL91213000.8 and document (experimental study of rotating screw line heat transfer technology automatically, the chemical equipment technology, 1997, N5 P4-8) has reported steel wire helix descaling and antiscaling and heat conduction reinforced technology thereof in a kind of heat-transfer pipe.The dirt of sweeping inside pipe wall is scraped in the rotation under the drive of intraductal heat transfer liquid flow energy of steel wire helix, and function online, automatic, the continuous wash antiscale is arranged; Flow because the guide functions of steel wire helix makes liquid in pipe make helix, also have the perturbation action of steel wire helix, the convection heat transfer' heat-transfer by convection in the pipe is also strengthened the pipe inner boundary layer.The principle of this technology and function are very desirable, and be simple in structure, with low cost, uses but fail engineering so far.Two of its basic reasons: the one, the wear problem between rotation steel wire helix and the heat transfer tube wall is difficult to solve; The 2nd, requirement has higher flow velocity to drive.(shell and tube water cooling equipment plastics tie cleans preventing fouling automatically, University Of Xiangtan's journal, 1998. (3) for Chinese patent 95236063.2 and document; 120-123). Fouling Cleaning technology in the rotation plastic spiral tie pipe of report though there is not the transducer wall ' s abrasion problem, needs higher flow velocity to drive equally.But in actual production, the heat-transfer equipment of the low flow velocity of liquid in pipe flow velocity below 0.80m/s accounts for its great majority, but can't use because flow velocity is not high enough, spin moment is big inadequately.
Summary of the invention
The present invention is in order to solve the wear problem that the cleaning moment of existing rotation plastic spiral tie below heat transfer velocity in pipes 0.8m/s is not enough and steel wire helix cleaning technique exists, the Fouling Cleaning plastic spiral device that a kind of heat-transfer fluid power is strengthened is proposed, the quick eddy flow that tube side liquid is formed by spiral mouth of pipe fixture, impact the turning moment that the spiral power wheel comes remarkable reinforced plastics spiral, so as quantity maximum, 0.4m/s～0.8m/s in extensive use in the low flow velocity heat-transfer equipment.Utilize the wear problem between plastics solution steel wire helix and the heat transfer tube wall simultaneously,
The objective of the invention is to be achieved through the following technical solutions:
The Fouling Cleaning plastic spiral device that a kind of heat-transfer fluid power is strengthened, it is made up of plastic spiral, spiral mouth of pipe fixture, spiral power wheel, heat-transfer pipe.Plastic spiral can be a plastic cladding helix, also can be the plastic spiral tie.Plastic spiral is installed on the spiral mouth of pipe fixture by one rotating shaft of spiral power wheel.The port of export of heat-transfer pipe is equipped with the tail cover.
During the equipment operation, the heat-transfer pipe inner fluid of original axial flow is made helix and is flowed under the guide functions of plastic spiral.The fluid that is directed to gives plastic spiral with reaction force moment.Descaling and antiscaling is carried out in rotation automatically under this moment loading, and oscillation crosswise.Flow because the heat-transfer pipe inner fluid is made helix, and be subjected to the disturbance of whirling vibration plastic spiral, the convection heat transfer' heat-transfer by convection process in the pipe is effectively strengthened.Because spiral adopts wear-resisting engineering plastics manufacturing to solve wear problem between existing steel wire spiral and heat transfer tube wall effectively.The quick eddy flow that tube fluid forms through spiral mouth of pipe fixture, directly dash and push away the spiral power wheel, not only its value is bigger towards moment of thrust for this, and it is equidirectional with the spin moment of plastic spiral, the result of stack strengthens the work moment of plastic spiral significantly, (difficult problem of Fouling Cleaning moment deficiency in the heat-transfer pipe of 0.8m/s～04m/s), thereby the range of application that makes automatic rotation clean spiral technology has enlarged several times to low flow velocity in solving effectively.
Description of drawings
Fig. 1 is the Fouling Cleaning plastic spiral schematic diagram of device that a kind of heat-transfer fluid power of the present invention is strengthened.
Fig. 2 is the plastic cladding helix structure chart that A-A analyses and observe among Fig. 1.
Fig. 3 is the another kind of structure chart of the Fouling Cleaning plastic spiral device of a kind of heat-transfer fluid power reinforcement of the present invention.
The specific embodiment
Describe in further detail below in conjunction with accompanying drawing 1, accompanying drawing 2 and 3 couples of the present invention of accompanying drawing.
1. rotating shafts, 2. bistriques, 3. spiral mouth of pipe fixture 4. core tubes 5. flights 6. spiral power wheels 7. wheel hubs 8. helical blades 9. spiral heads 10. plastic cladding helix 11 heat-transfer pipes 12. tails among the figure overlap 13. plastics coverings, 14. wire spirals, 20. spiral plastics ties
The Fouling Cleaning plastic spiral device that a kind of heat-transfer fluid power is strengthened is provided with by wire spiral 14 Hes in heat-transfer pipe 11. the plastic cladding helix 10 of plastics covering 13 combinations.Plastic cladding helix 10 is fixed on the spiral mouth of pipe fixture 3 by spiral power wheel 6, rotating shaft 1 and bistrique 2 by spiral head 9.After spiral plastics tie 20 passes through spiral head 9 and rotating shaft 1 is connected, be fixed on the spiral mouth of pipe fixture 3 by bistrique 2.Spiral mouth of pipe fixture 3 is made of flight 5 and core tube 4.Spiral power wheel 6 is made of helical blade 8 and wheel hub 7.The port of export of heat-transfer pipe 11 is installed tail cover 12.
During the equipment operation, the hot fluid in the heat-transfer pipe 11 was axial flow originally, makes helix and flow under the guide functions of plastic cladding helix 10 or plastic spiral tie 20.The fluid that is directed to gives plastic cladding helix 10 or plastic spiral tie 20 with reaction force moment.Under this moment loading, plastic cladding helix 10 or plastic spiral tie 20 rotate automatically, and oscillation crosswise, carry out the automatic desludging antiscale.200 hours field investigations of manual simulation's dirt (1/5 cement, 4/5 Paris white, latex modulation) through the carbon steel pipe inwall show that automatic cleansing power is strong.Because heat-transfer pipe 11 interior hot fluids are made helix and are flowed, and are subjected to the disturbance of the plastic cladding helix 10 or the plastic spiral tie 20 of whirling vibration, and the convection heat transfer' heat-transfer by convection process in the pipe is effectively strengthened.
Test shows under the condition of water vapour heating outside internal diameter 32mm, water-cooled stainless steel tube, pipe, heat transfer coefficient has on average improved 50% effect.The plastics covering 6 of plastic cladding helix 10 or plastic spiral tie 20 have all solved the wear problem between wire spiral 5 and heat-transfer pipe 7 walls effectively.
The turning moment mechanism for intensifying of forming plastic cladding helix 10 or plastic spiral tie 20 by spiral mouth of pipe fixture 3 and spiral power wheel 6.The quick eddy flow that the interior hot fluid of heat-transfer pipe 11 forms through spiral mouth of pipe fixture 3, directly impact spiral power wheel 6, this impact moment not only its value is bigger, and it is equidirectional with the spin moment of plastic cladding helix 10 or plastic spiral tie 20, the result of stack strengthens the work moment of plastic cladding helix 10 or plastic spiral tie 20 significantly, thereby make plastic cladding helix 10 or plastic spiral tie 20 in low flow velocity (difficult problem of Fouling Cleaning moment deficiency is cracked in the heat-transfer pipe of 8.0m/s～0.4m/s), and its range of application is expanded greatly.For example, in internal diameter 32mm, pipe, test under the condition of water-cooled vertical stainless steel tube show that plastic cladding helix 10 or plastic spiral tie 20 can rotate automatically under the condition of 0.26m/s.
Spiral mouth of pipe fixture 3 is made of flight 5 and core tube 4 two parts.The direction of the helical blade 8 of the hand of spiral of flight 5 and spiral power wheel 6, plastic cladding helix 10 or plastic spiral tie 20 is all just the opposite.The helical angle of flight 5 is 20 °～60 ° scope, and preferred version is that velocity in pipes junior helical angle is got smaller value, makes the fluid speedup bigger.The quantity of flight 5 is 3～6, preferred version be the caliber of heat-transfer pipe 11 heal king bolt sheet 5 the sheet number also the more.The effect of core tube 4 be by increase become a mandarin liquid the eddy flow radius, reduce the entrance channel area and improve flow velocity, increase dashing of spiral power wheel 6 pushed away square.The preferred version of core tube 4 is that the ratio of internal diameter of external diameter and heat-transfer pipe 11 is in 0.2～0.8 scope.
The manufactured materials of wire spiral 14 can be stainless steel, carbon steel, copper and copper alloy, titanium and titanium alloy, mainly selects according to the corrosivity of the hot fluid in the heat-transfer pipe 11.
The thickness of plastics covering 13 adopts the engineering plastics manufacturing that wearability is good, Shooting Technique is good in the scope of 0.5mm～3.0mm, considers that simultaneously the high low condition of temperature of the hot fluid in the heat-transfer pipe 11 is selected.General available polyformaldehyde or filling polyformaldehyde.
The port of export at heat-transfer pipe 11 is equipped with tail cover 12; effect is to prevent to wear and tear between the afterbody of plastic cladding helix 10 or plastic spiral tie 20 and the heat-transfer pipe 11; protect the export department of heat-transfer pipe 11, and prevent from when plastic cladding helix 10 or plastic spiral tie 20 come off to take the downstream to hot fluid in the pipe as if occurring.
Claims (5)
1. the Fouling Cleaning plastic spiral device strengthened of a heat-transfer fluid power, by heat-transfer pipe (11), spiral mouth of pipe fixture (3), spiral power wheel (6), plastic cladding helix (10) or plastic spiral tie (20) are formed, it is characterized in that being arranged on plastic cladding helix (10) or plastic spiral tie (20) in the heat-transfer pipe (11), utilize the hot fluid in the heat-transfer pipe (11) to drive rotation automatically and vibration as power, realize automatic desludging antiscale and heat conduction reinforced, its rotation cleaning moment is by the impact moment of spiral mouth of pipe fixture (3) and spiral power wheel (6) generation and improve, and plastic cladding helix of rotation (10) or plastic spiral tie (20) utilize the wearing character of self engineering plastics to avoid the wearing and tearing of heat-transfer pipe (11).
2. the Fouling Cleaning plastic spiral device of strengthening according to a kind of heat-transfer fluid power of claim 1, it is characterized in that plastic cladding helix (10) is made up of wire spiral (14) and plastics covering (13) two parts, the thickness of plastics covering (13) adopts the manufacturings of wearability and Shooting Technique good engineering plastics in the scope of 0.5mm～3.0mm.
3. the Fouling Cleaning plastic spiral device of strengthening according to a kind of heat-transfer fluid power of claim 1, it is characterized in that spiral power wheel (6) is made of helical blade (8) and wheel hub (7) two parts, the hand of spiral of helical blade (8) is all identical with the hand of spiral of plastic cladding helix (10) or plastic spiral tie (20).
4. the Fouling Cleaning plastic spiral device of strengthening according to a kind of heat-transfer fluid power of claim 1, it is characterized in that spiral mouth of pipe fixture (3) is made of flight (5) and core tube (4) two parts, the hand of spiral of the helical blade (8) of the hand of spiral of flight (5) and spiral power wheel (6), plastic cladding helix (10) or plastic spiral tie (20) is all just the opposite.
5. the Fouling Cleaning plastic spiral device of strengthening according to a kind of heat-transfer fluid power of claim 1 is characterized in that the port of export of heat-transfer pipe (11) is equipped with tail cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031245420A CN100376859C (en) | 2003-06-13 | 2003-06-13 | Heat-transfer fluid power plastic helical dirt cleaning torque reinforcing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031245420A CN100376859C (en) | 2003-06-13 | 2003-06-13 | Heat-transfer fluid power plastic helical dirt cleaning torque reinforcing method |
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| Publication Number | Publication Date |
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| CN1566894A CN1566894A (en) | 2005-01-19 |
| CN100376859C true CN100376859C (en) | 2008-03-26 |
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| CNB031245420A Expired - Fee Related CN100376859C (en) | 2003-06-13 | 2003-06-13 | Heat-transfer fluid power plastic helical dirt cleaning torque reinforcing method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645113B (en) * | 2011-02-16 | 2013-07-31 | 俞天翔 | Vibratory spiral fluidized horizontal shell-and-tube heat exchanger |
| CN102901400B (en) * | 2011-07-27 | 2016-03-30 | 俞天翔 | A kind of plastics eddy flow of fluid dynamic rotation blows break bar wiper mechanism |
| CN113310330B (en) * | 2021-06-04 | 2022-11-25 | 重庆中创鼎新智能化节能技术有限公司 | Double-layer spiral band and double-layer turbulence device |
| CN114485257A (en) * | 2022-02-22 | 2022-05-13 | 湖南工业大学 | Automatic cleaning technology for hard scale of separation-pressing plastic spiral twisted belt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0343434A1 (en) * | 1988-05-27 | 1989-11-29 | Asea Brown Boveri Ag | Seraping device for pipes |
| DE4033324C1 (en) * | 1990-10-19 | 1992-03-05 | Wehrle-Werk Ag, 7830 Emmendingen, De | Flue het exchanger tube cleaner - consists of wire spiral surrounding tube, driven via gears |
| CN2430667Y (en) * | 2000-04-27 | 2001-05-16 | 株洲工学院帅科机械清洗研究所 | Self rotary button automatic cleaning high efficiency ecaporator |
| CN2443319Y (en) * | 2000-09-04 | 2001-08-15 | 建德市蓝宇清洗有限公司 | Heat transfer tube with scale removing and preventing device |
| CN2465140Y (en) * | 2001-02-19 | 2001-12-12 | 沈激明 | Automatic descaling device for heat conductive pipe |
| CN2656032Y (en) * | 2003-06-13 | 2004-11-17 | 株洲工学院帅科机械清洗研究所 | Rotary force moment reinforced type conduct scale preventing and removing fluid power plastic screw |
-
2003
- 2003-06-13 CN CNB031245420A patent/CN100376859C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0343434A1 (en) * | 1988-05-27 | 1989-11-29 | Asea Brown Boveri Ag | Seraping device for pipes |
| DE4033324C1 (en) * | 1990-10-19 | 1992-03-05 | Wehrle-Werk Ag, 7830 Emmendingen, De | Flue het exchanger tube cleaner - consists of wire spiral surrounding tube, driven via gears |
| CN2430667Y (en) * | 2000-04-27 | 2001-05-16 | 株洲工学院帅科机械清洗研究所 | Self rotary button automatic cleaning high efficiency ecaporator |
| CN2443319Y (en) * | 2000-09-04 | 2001-08-15 | 建德市蓝宇清洗有限公司 | Heat transfer tube with scale removing and preventing device |
| CN2465140Y (en) * | 2001-02-19 | 2001-12-12 | 沈激明 | Automatic descaling device for heat conductive pipe |
| CN2656032Y (en) * | 2003-06-13 | 2004-11-17 | 株洲工学院帅科机械清洗研究所 | Rotary force moment reinforced type conduct scale preventing and removing fluid power plastic screw |
Non-Patent Citations (2)
| Title |
|---|
| 自动旋转螺旋线传热技术的试验研究. 俞秀民，俞天兰等.化工装备技术，第18卷第5期. 1997 * |
| 螺旋纽带自动清洗式高效蒸发器技术可行性研究. 俞天兰，彭德其等.株洲工学院学报，第15卷第1期. 2001 * |
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