CN1657189A - Power moment strengthening technique for fixing device for rotary cleaning element removing dirt inside pipe - Google Patents
Power moment strengthening technique for fixing device for rotary cleaning element removing dirt inside pipe Download PDFInfo
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- CN1657189A CN1657189A CN 200410022893 CN200410022893A CN1657189A CN 1657189 A CN1657189 A CN 1657189A CN 200410022893 CN200410022893 CN 200410022893 CN 200410022893 A CN200410022893 A CN 200410022893A CN 1657189 A CN1657189 A CN 1657189A
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- rotation cleaning
- cleaning element
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Abstract
A technique for increasing the kinetic moment of the fixed for the rotary washing part used to remove the dirt inside pipe features that the fluid coming in pipe flows through the reverse spiral channed at the entrance of heat transfer pipe to become a large-radius high-speed cyclone stream to directly flush the kinetic wheel, so generating a large kinetic moment.
Description
Technical field
What the present invention relates to is the enhancement of the force moment technology of dirt rotation cleaning part fixture in a kind of pipe.It can be applied to the online rotation of various shell and tube heat-transfer equipments (for example heat exchanger, condenser, evaporimeter or the like) and clean antiscale and heat conduction reinforced.
Background technology
French Patent (FRP) (Fouling Cleaning rotation twisted strip cleaning technique in FR25545209 and the Chinese patent disclosed heat-transfer pipes such as (CN2465140Y, CN2413319Y), the axial restraint of rotation twisted strip all is sliding friction, its frictional resistance moment is bigger, and the pitch of twisted strip is littler, the axial force that twisted strip bears is bigger, corresponding frictional resistance moment is also bigger, and exactly to be that pitch heals little opposite better with the heat-transfer effect of twisted strip, the further raising of restriction efficient.And, structurally there is such defective in the mouth of pipe fixture of rotation cleaning element: do not have the convection cell inlet to flow to and carry out necessary guiding, before becoming a mandarin liquid cleaning element contacting with rotation, can produce eddy flow in various degree in the heat-transfer pipe porch, the eddy flow direction must be identical with the hand of spiral of rotation cleaning element according to the resistance minimum principle.By the system of material points moment of momentum theorem as can be known, its result must be that the spin moment that causes rotating cleaning element reduces, and being difficult under the operating mode that this technology is not high at flow velocity or the Fouling Cleaning resistance is bigger used.Also having a deficiency is in long-term running, and individual other cleaning element may come off, and reliability is not high enough.
Summary of the invention
Technical problem to be solved by this invention is that the existing mouth of pipe fixture frictional resistance moment of rotation cleaning part in the heat-transfer pipe is big, the inlet eddy flow influences spin moment, the reliability problem of high aspect inadequately, the enhancement of the force moment technology of dirt rotation cleaning part fixture in a kind of pipe is proposed, have that the moment of resistance is little, reliability is high and can produce bigger giving and revolve advantages such as recoil kinetic moment, make automatic rotary clean the antiscale element and can be applied even more extensively in low flow velocity or the bigger heat-transfer equipment of Fouling Cleaning resistance.
The purpose of patent of the present invention is achieved through the following technical solutions:
The enhancement of the force moment technology of dirt rotation cleaning part fixture in a kind of pipe, it has bearing cap, spin, cup, reverse acting spiral runner, rotating shaft, power wheel, and heat-transfer pipe, rotation cleaning element are formed fixture.Cup and reverse acting spiral runner are integral structure, also can be split-type structurals.The hand of spiral of reverse acting spiral runner is opposite with the direction of the spiral (or helical teeth) of rotation cleaning element.Rotating shaft and bearing cap riveted joint or welding are fixing, and rotating shaft is connected with the rotation cleaning element.Plastics power wheel and rotating shaft injection mo(u)lding are one.The diameter of reverse acting spiral runner and power wheel is littler than the internal diameter of bearing sleeve.The reverse acting spiral runner is fixed on the import department of heat-transfer pipe.
Because replace the existing glide bearing arrangement with rolling bearing, frictional resistance moment reduces significantly.During the heat-transfer equipment operation, when tube side liquid enters heat-transfer pipe through the reverse acting spiral runner, flow velocity is accelerated the back at double and is directly produced a bigger inlet towards pushing torque towards the helical wing plate that promotes wheels, its direction is identical with the direction of rotation of cleaning element, and the result that both superpose in the same way originally enlarged markedly the operational forces moment ratio of rotation cleaning element.Reduce the dual reason that enlarges markedly with kinetic moment significantly owing to the moment of resistance, the velocity in pipes that automatic cleaning element rotation is needed obviously descends, reach make the rotation cleaning technique can be under the bigger operating mode of low flow velocity or Fouling Cleaning resistance ratios the purpose of broader applications.
Because rotating shaft and bearing cap riveted joint or welding are fixing, therefore can thoroughly solve the problem that the rotation cleaning element may come off, operational reliability improves greatly.Because the diameter of spiral flow deflector and power wheel fin is more smaller than the internal diameter of heat-transfer pipe, the power unit type axis of rolling can be assembled into one during production, connect during installation and go up the rotation cleaning element, be fixed on the import department of heat-transfer pipe at last by reverse acting spiral runner wherein.Therefore, the assembling of this fixture is also more convenient.
Cup-reverse acting spiral runner and power wheel adopt ageing-resistant engineering plastics manufacturing, and be with low cost, long service life.
Description of drawings
Fig. 1 is the enhancement of the force moment technical pattern schematic diagram of dirt rotation cleaning part fixture in the pipe of the present invention.
1 bearing cap, 2 spin, 3 cups, 4 tube sheets, 5 reverse acting spiral runners, 6 spiral flow deflectors, 7 rotating shafts, 8 power wheel fins, 9 power wheels, 10 heat-transfer pipes, 11 rotation cleaning elements among the figure
The specific embodiment
Specific embodiments below in conjunction with description of drawings patent of the present invention:
The structural principle of the enhancement of the force moment technology of dirt rotation cleaning part fixture is seen Fig. 1 in the pipe of the present invention.Cup 3 is an integral structure with reverse acting spiral runner 5, also can be split-type structural.Rotating shaft 7 is fixing with bearing cap 1 riveted joint or welding.The hand of spiral of reverse acting spiral runner 5 is opposite with the direction of the spiral (or helical teeth) of rotation cleaning element 11.Plastics power wheel 9 when injection moulding and rotating shaft 7 form as one.Rotating shaft 7 is connected with rotation cleaning element 11.The diameter of spiral flow deflector 6 and power wheel fin 8 is littler than the internal diameter of heat-transfer pipe 10.During production, bearing cap 1, spin 2, cup 3, reverse acting spiral runner 5, rotating shaft 7, power wheel 9 can be assembled into holistic power unit type rolling bearing.Connect during installation and go up rotation cleaning element 11, be fixed on the import department of heat-transfer pipe 10 at last by reverse acting spiral runner 5 wherein.Therefore, the assembling of this fixture is also more convenient.
During the heat-transfer equipment operation, when tube side liquid enters heat-transfer pipe 10 through reverse acting spiral runner 5, flow velocity is accelerated at double, directly dash and promote wheels fin 8, produce a bigger inlet towards pushing torque, its direction also direction of rotation with the rotation cleaning element is identical, and Die Jia result originally enlarged markedly the operational forces moment ratio of rotation cleaning element 11 in the same way.Owing to the existing glide bearing changes that the moment of resistance behind the rolling bearing reduces significantly into and towards the dual reason of pushing torque, the total output square of automatic rotation cleaning element 11 is enlarged markedly, the velocity in pipes that rotation requires obviously descends thereupon, reach make the rotation cleaning technique can be under the bigger operating mode of low flow velocity or Fouling Cleaning resistance ratios the purpose of broader applications.
Because the head of rotating shaft 7 and bearing cap 1 adopt riveted joint or welding to fix, the afterbody of rotating shaft 7 is connected with rotation cleaning element 11, therefore can thoroughly solve the problem that rotation cleaning element 11 may come off, and reliability improves greatly.
The hand of spiral of reverse acting spiral runner 5 is opposite with spiral (helical teeth) direction of rotation cleaning element 11, and is identical with the direction that rotatablely moves of rotation cleaning element 11.The pitch angle alpha will of reverse acting spiral runner 5 is 25 °～70 ° scope, and the lower helical angle value of velocity in pipes is littler, and the rate of flow of fluid that comes out through spiral flow deflector 6 just increases greatlyyer.The quantity of spiral flow deflector 6 is 2～6, and the heal sheet number of king bolt flow deflector 6 of the caliber of heat-transfer pipe 10 is also bigger.The ratio d/D of the base diameter d of reverse acting spiral runner 5 and the inside diameter D of heat-transfer pipe 10 is in 0.40～0.75 scope, its effect be by increase become a mandarin liquid the eddy flow radius, reduce the entrance channel area and improve flow velocity, increase inlet to power wheel 9 towards pushing torque.
Cup 3, reverse acting spiral runner 5, power wheel 9 etc. are ageing-resistant engineering plastics manufacturing, and be corrosion-resistant, cost is low, long service life.
Claims (4)
1. the enhancement of the force moment technology of dirt rotation cleaning part fixture in the pipe, bearing cap (1) is arranged, spin (2), cup (3), reverse acting spiral runner (5), rotating shaft (7), power wheel (9) is formed, it is characterized in that: by bearing cap (1), spin (2), cup (3) is formed rolling bearing, the hand of spiral of reverse acting spiral runner (5) is opposite with the direction of the spiral (or helical teeth) of rotation cleaning element (11), the hand of spiral of power wheel fin (8) is opposite with the hand of spiral of reverse acting spiral runner (5), and the diameter of spiral flow deflector (6) and power wheel fin (8) is more smaller than the internal diameter of heat-transfer pipe (10).
2. the enhancement of the force moment technology of dirt rotation cleaning part fixture in the pipe according to claim 1 is characterized in that the head of rotating shaft (7) and bearing cap (1) is riveted or welding is fixing, and the afterbody of rotating shaft (6) is connected with rotation cleaning element (11).
3. the enhancement of the force moment technology of dirt rotation cleaning part fixture in the pipe according to claim 1 is characterized in that reverse acting spiral runner (5), power wheel (9) adopt the engineering plastics manufacturing.
4. the enhancement of the force moment technology of dirt rotation cleaning part fixture is characterized in that cup (3) and reverse acting spiral runner (5) are integral structure in the pipe according to claim 1, also can be split-type structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410022893 CN1657189B (en) | 2004-02-16 | 2004-02-16 | Power moment strengthening apparatus for fixing device for rotary cleaning element removing dirt inside pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410022893 CN1657189B (en) | 2004-02-16 | 2004-02-16 | Power moment strengthening apparatus for fixing device for rotary cleaning element removing dirt inside pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1657189A true CN1657189A (en) | 2005-08-24 |
| CN1657189B CN1657189B (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410022893 Expired - Fee Related CN1657189B (en) | 2004-02-16 | 2004-02-16 | Power moment strengthening apparatus for fixing device for rotary cleaning element removing dirt inside pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN1657189B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769697A (en) * | 2010-03-04 | 2010-07-07 | 清华大学 | In-tube pull rod connecting twisted plate type self-centering cleaning and descaling component |
| CN101856659A (en) * | 2010-06-10 | 2010-10-13 | 清华大学 | Pair rubber ball for cleaning and descaling in heat-exchange tubes |
| CN101506611B (en) * | 2006-12-31 | 2011-05-11 | 北京化工大学 | A self-cleaning enhanced heat transfer device inside a tube |
| CN102128560A (en) * | 2011-04-19 | 2011-07-20 | 北京化工大学 | Twisted belt type pendant in heat exchange pipe |
| CN102895830A (en) * | 2012-10-31 | 2013-01-30 | 重庆鹏越科技发展有限公司 | Washing device for acetylene gas |
| CN109387090A (en) * | 2018-10-26 | 2019-02-26 | 唐山钢铁集团有限责任公司 | A kind of spiral condensing heat exchanger and heat-exchange method |
| CN113026627A (en) * | 2021-04-09 | 2021-06-25 | 深圳市德康工程建设有限公司 | Equipment of cleaing away to inside thing of sunken type guardrail stand |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174750A (en) * | 1978-04-18 | 1979-11-20 | Nichols Billy M | Tube cleaner having anchored rotatable spiral member |
| CH677739A5 (en) * | 1988-05-27 | 1991-06-28 | Asea Brown Boveri | |
| IN184672B (en) * | 1993-05-07 | 2000-09-23 | Envirecon Serv Ltd | |
| CN2214239Y (en) * | 1995-01-10 | 1995-12-06 | 湘潭大学 | Cleaning device for descaling and antiscaling in heat transfer pipe |
| CN2440157Y (en) * | 2000-08-25 | 2001-07-25 | 龙口矿务局洼里煤矿 | Boiler-tube scale dredging machine |
| 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 |
| CN2498574Y (en) * | 2001-06-30 | 2002-07-03 | 陈江春 | Spiral connector against scale of heat exchanger |
| CN2585167Y (en) * | 2002-09-13 | 2003-11-05 | 株洲工学院帅科机械清洗研究所 | Pipe orifice fixing device for rotary cleaning appliance in heat transfer pipe |
-
2004
- 2004-02-16 CN CN 200410022893 patent/CN1657189B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506611B (en) * | 2006-12-31 | 2011-05-11 | 北京化工大学 | A self-cleaning enhanced heat transfer device inside a tube |
| CN101769697A (en) * | 2010-03-04 | 2010-07-07 | 清华大学 | In-tube pull rod connecting twisted plate type self-centering cleaning and descaling component |
| CN101856659A (en) * | 2010-06-10 | 2010-10-13 | 清华大学 | Pair rubber ball for cleaning and descaling in heat-exchange tubes |
| CN101856659B (en) * | 2010-06-10 | 2011-11-09 | 清华大学 | Pair rubber ball for cleaning and descaling in heat-exchange tubes |
| CN102128560A (en) * | 2011-04-19 | 2011-07-20 | 北京化工大学 | Twisted belt type pendant in heat exchange pipe |
| CN102128560B (en) * | 2011-04-19 | 2012-10-17 | 北京化工大学 | Twisted belt type pendant in heat exchange pipe |
| CN102895830A (en) * | 2012-10-31 | 2013-01-30 | 重庆鹏越科技发展有限公司 | Washing device for acetylene gas |
| CN102895830B (en) * | 2012-10-31 | 2015-01-21 | 重庆鹏越科技发展有限公司 | Washing device for acetylene gas |
| CN109387090A (en) * | 2018-10-26 | 2019-02-26 | 唐山钢铁集团有限责任公司 | A kind of spiral condensing heat exchanger and heat-exchange method |
| CN113026627A (en) * | 2021-04-09 | 2021-06-25 | 深圳市德康工程建设有限公司 | Equipment of cleaing away to inside thing of sunken type guardrail stand |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1657189B (en) | 2010-05-12 |
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Granted publication date: 20100512 Termination date: 20110216 |