CN101551214A - Rotating piece type automatic-cleaning and heat-transfer enhancing device - Google Patents
Rotating piece type automatic-cleaning and heat-transfer enhancing device Download PDFInfo
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- CN101551214A CN101551214A CNA2008101033172A CN200810103317A CN101551214A CN 101551214 A CN101551214 A CN 101551214A CN A2008101033172 A CNA2008101033172 A CN A2008101033172A CN 200810103317 A CN200810103317 A CN 200810103317A CN 101551214 A CN101551214 A CN 101551214A
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Abstract
The invention relates to a rotating piece type automatic-cleaning and heat-transfer enhancing device, in particular to a device used for a heat transfer pipe for a tubular heat exchange device. The device comprises one or more rotating piece(s), hanging parts, an axial line and limiting rivets and is used by being placed in a heat exchanger, wherein the number of the hanging parts is two, and the two hanging parts are respectively fixed at both ends of the heat transfer pipe; the rotating pieces are placed in the heat transfer pipe of the heat exchanger; the rotating pieces are used and arranged in groups, and the limiting rivets are arranged between each group of the rotating pieces at intervals; the axial line penetrates through an axle holes of the rotating pieces and the limiting rivets, and both ends of the axial line are fixed on the two hanging parts; the rotating pieces are of screw twisted shapes, concavo-convex slot structures are alternatively arranged at the position of the axial line at intervals and are axle holes of the axial line, the friction between the rotating pieces and the axial line can be effectively reduced, thus the service life of the rotating pieces is prolonged; and the rotating pieces have simple molds, can be made of plastics or metal and can be molded by pressing or by injection according to the different materials. The device has the dual functions of automatic on-line cleaning and scaling control and enhancing heat transfer in the heat transfer pipe and is convenient to manufacture, assemble, use and replace.
Description
Technical field
The present invention relates to be used for the antiscaling, descaling in the heat-transfer pipe of pipe type heat transfer equipment and the device of augmentation of heat transfer, particularly utilize the be used as power device of automatic antiscaling, descaling and augmentation of heat transfer of heat-transfer pipe inner fluid.
Background technology
The heat-transfer pipe encrustation of heat exchanger can cause heat transfer efficiency decline, fluid flow resistance to increase, thereby enterprise energy expense and production cost have been increased, even more serious is that fouling also can form underdeposit corrosion, causes potential safety hazard, shortens the service life of heat-transfer equipment.Stop production to clean and to influence normally carrying out of production.
In existing augmentation of heat transfer and on-line cleaning method, the twisted strip method is to be that driving force makes the twisted strip rotation reach the purpose of on-line cleaning and augmentation of heat transfer with the fluid dynamic energy.The structure of this device is disclosed in " cleaning device of descaling and antiscaling in the heat-transfer pipe " (ZL 95236063.2), this device is made of the helically twisted band of installing in the heat-transfer pipe, the radial dimension of distortion band is less than the internal diameter of heat-transfer pipe, at heat-transfer pipe inlet end axial suspension member is housed, there is discharge orifice at its middle part, axially the head of suspension member has an axis hole, dress bearing pin in the axis hole, and the afterbody of bearing pin is connected with the distortion band." spiral enhanced heat exchange of dual turbulent and automatic descaling apparatus " (ZL 03114761.5) discloses a kind of enhanced heat exchange and automatic descaling apparatus, this device is except being provided with twisted strip, suspension member, twisted strip is arranged in the helix tube, drives twisted strip by flowing by the fluid in the helix tube and rotates." rotator type cleaning and heat-transfer enhancing device " (ZL 200520127121.9) are made up of rotor, suspension member, axis and spacing rivet, suspension member is installed in the heat-transfer pipe two ends, axis is by the suspension member axis hole, rotor is arranged along the heat-transfer pipe axis, rotor rotates under fluid impact, thereby reaches the purpose of augmentation of heat transfer and on-line cleaning.
The device that above-mentioned preceding two kinds of patents are mentioned has certain augmentation of heat transfer effect and on-line cleaning ability, obtains commercial Application at specific area.The length of twisted strip equates substantially with heat-transfer pipe, is the integral type plug-in part, and the twisted strip part is stuck will to cause whole twisted strip not rotate smoothly, and its kinetic moment deficiency; Two kinds of devices all adopt an end to be connected with suspension member, the mode that an end freely swings.The twisted strip external diameter is less than the heat-transfer pipe internal diameter, but because the whole piece twisted strip radially wobbles the amplitude difference, will cause twisted strip to take out stains inhomogeneous and problem such as scraping heat-transfer pipe tube wall.These type of device self structure characteristics have determined can only be in the heat exchange applications of high flow rate, short tube journey.For this reason, the applicant has invented " rotator type cleaning and heat-transfer enhancing device " and can effectively evenly clear up dirt and tube wall is not had any wearing and tearing.But because under harsh conditions more, the wearing and tearing between rotor and the axis are bigger, can reduce its service life; And because the modeling structure more complicated of rotor, machine-shaping inconvenience is all limiting applying of this technology on the scope of application and processing cost.
Summary of the invention
The invention provides a kind of rotating piece type automatic-cleaning and heat-transfer enhancing device that is used in the pipe type heat transfer equipment heat-transfer pipe.It has the function of the pre-good antiscale property of automatic on-line, cleaning and augmentation of heat transfer, under the situation of fluid following current or adverse current in heat-transfer pipe, the effect of scale inhibition and augmentation of heat transfer is arranged all, and its use wearing and tearing are little, and machine-shaping is easy.
Rotating piece type automatic-cleaning and heat-transfer enhancing device of the present invention, this device is made of rotor, suspension member, axis and spacing rivet.This device is placed in the heat exchanger and uses.Every heat-transfer pipe of heat exchanger needs two suspension members, is separately fixed at the two ends of heat-transfer pipe; Place one or more rotors in Exchanger Tubes, the length of rotor or rotor group is slightly less than heat-transfer pipe length.Use the heat-transfer pipe of a plurality of rotors, rotor is worn bunchiness by axis, and rotor is arranged in groups, between every group by spacing rivet space; Axis passes the axis hole and the spacing rivet of rotor, and the axis two ends are fixed on two suspension members.
Rotor is twisted shapes in the shape of a spiral, and the tongue and groove structure appears in rotor axis location interval alternately, as the axis hole of axis, can reduce the friction between the rotor coaxial line so effectively, improves the service life of rotor.Traditional rotor is if adopt injection moulding, and die joint is perpendicular to rotor axis, otherwise the rotor mould must have the structure of loosing core, and rotor structure of the present invention, die joint can with axis normal or parallel, mould does not need to be equipped with the structure of loosing core.
On the blade of rotor perforate can be arranged, to reduce fluid resistance.The external diameter of rotor is less than the internal diameter of heat-transfer pipe, and the shaft hole diameter of rotor is slightly larger than the external diameter of axis.The rotor axle head has a convex shaped structure, to reduce the friction area between rotor and the rotor.The rotor moulding is simpler than rotor structure, and material can adopt plastics or metal, can adopt compression moulding or injection moulding according to the difference of its material, and mould obtains simplifying.
Suspension member is connected with the heat-transfer pipe socket joint.The sidewall of suspension member and axially have flow-in hole, so that the medium of heat exchanger tube side flows in the heat-transfer pipe swimmingly, the gross area of flow-in hole equates with the interior area of section of heat-transfer pipe substantially.There is an axis hole termination of suspension member, and axis passes axis hole and is fixed on the suspension member.
Axis can be flexibility or rigidity, and flexible axis fixedly is tension, makes the central lines of the center line and the heat-transfer pipe of axis.The axis two ends can be by knotting, twine, or by spacing rivet etc. it is fixed.Rigid axis can be made troubles to installation, but can guarantee better that rotor rotates under the effect of fluid media (medium) freely.The spacing of two ends can be passed through riveting, or realizes by spacing rivet, screw.
Spacing rivet is made by metal material, is hierarchic structure, and a centre bore is arranged, and the aperture is consistent with the rotor aperture axis; Spacing rivet should be slightly larger than rotor tongue and groove external diameter with the external diameter of an end of rotor contact; Other end length will meet installation dimension, and jaw can carry out clamp to it easily and be fixed on the axis.It is mainly used in spacing between the rotor group, and spacing between rotor and the suspension member.
During operation, the tube side medium flows in the heat-transfer pipe by the flow-in hole on the suspension member, and rotor rotates under the impetus of fluid, realizes the antiscaling, descaling effect.Rotor screw twisted structure has guide functions, and the complexity that makes fluid advance in the shape of a spiral flows.Under the impetus of fluid, the rotor fast rotational, strengthening fluid is disturbance in heat-transfer pipe, reduces heat transfer boundary layer, plays the augmentation of heat transfer effect.Rotor of the present invention is compared with existing rotor, reduces with the axis contact-making surface, and rotary resistance is little; The used material of rotor reduces, and its shape is convenient to machine-shaping.
Rotating piece type automatic-cleaning and heat-transfer enhancing device of the present invention is made, assembling, use, change convenient, under the situation of fluid following current or adverse current in heat-transfer pipe, the effect of scale inhibition and augmentation of heat transfer is arranged all.The present invention is applicable to pipe type heat transfer equipment, comprises the occasion of fouling in horizontal heat exchanger and vertical heat exchanger, condenser and the needs cleaning straight tube.Have the dual-use function of interior automatic on-line cleaning antiscale of heat-transfer pipe pipe and augmentation of heat transfer, can easily be used for the technological transformation of existing heat-transfer equipment.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural perspective of rotor.
Fig. 3 is the front view of Fig. 2.
Fig. 4 is the vertical view of Fig. 2.
Among the figure: 1-suspension member, 1-1 flow-in hole, 2-rotor, 2-1 blade, 2-2 axis hole, 2-3 perforate, 2-4 axle head projection, 3-axis, the spacing rivet of 4-, 5-heat-transfer pipe.
The specific embodiment
Rotating piece type automatic-cleaning and heat-transfer enhancing device of the present invention, its structure as shown in Figure 1, Figure 2, Figure 3 and Figure 4, this device is made of suspension member 1, rotor 2, axis 3 and spacing rivet 4, is installed on the heat-transfer pipe 5 to use.Every heat-transfer pipe 5 uses 2 suspension members 1, and the sidewall of suspension member 1 has flow-in hole 1-1, and two suspension members 1 are fixedlyed connected with the two ends of heat-transfer pipe 5 respectively, and the axis hole on suspension member 1 termination is concentric with heat-transfer pipe 5.Rotor 2 as shown in Figures 2 and 3, appearance has blade 2-1, center that the rotor axis hole 2-2 of tongue and groove structure is arranged, and can also establish perforate 2-3 (have perforate 2-3 on the blade of rotor the right among Fig. 2, the rotor of Fig. 3 and Fig. 4 is not established perforate) on the edge of blade 2-1.The axis hole that axis 3 passes on rotor axis hole 2-2, spacing rivet 4 and the suspension member 1 is strained and fixed on the suspension member 1 at two.The external diameter of rotor 2 is slightly less than the internal diameter of heat-transfer pipe 5, and the axis hole 2-2 internal diameter of rotor 2 is slightly larger than the external diameter of axis 3.
Embodiment: the major parameter of rotating piece type automatic-cleaning and heat-transfer enhancing device is: heat-transfer pipe 5 length are 2000mm, and its internal diameter is Φ 23mm, rotor 2 external diameter Φ 19mm, and rotor is the nickel metal material, 72 ° of the helical angles of blade, rotor length 20mm.Obtain the rotor rotary resistance through experiment test and be about half that has the rotor rotation resistance under the identical service condition now.
Claims (9)
1, rotating piece type automatic-cleaning and heat-transfer enhancing device mainly is made of rotor, suspension member, axis and spacing rivet, and it is characterized in that: rotor is twisted shapes in the shape of a spiral, and the tongue and groove structure appears in rotor axis location interval alternately, as the axis hole of axis; Suspension member has two, is separately fixed at the two ends of Exchanger Tubes; One or more rotors are placed in the Exchanger Tubes; For the rotor group, rotor is arranged in groups, between every group by spacing rivet space; Axis passes the axis hole and the spacing rivet of rotor, and the axis two ends are fixed on two suspension members.
2, device according to claim 1 is characterized in that: the rotor material can adopt plastics or metal, can adopt compression moulding or injection moulding according to the difference of its material.
3, device according to claim 1 is characterized in that: the external diameter of rotor is less than the internal diameter of heat-transfer pipe, and the shaft hole diameter of rotor is slightly larger than the external diameter of axis.
4, device according to claim 1 is characterized in that: the rotor axle head has a convex shaped structure that reduces contact-making surface.
5, device according to claim 1 is characterized in that: on the blade of rotor perforate can be arranged.
6, device according to claim 1 is characterized in that: the length of rotor or rotor group is slightly less than heat-transfer pipe length.
7, device according to claim 1 is characterized in that: suspension member is connected with the heat-transfer pipe socket joint, the sidewall of suspension member and axially have flow-in hole; There is an axis hole termination of suspension member, and axis passes axis hole and is fixed on the suspension member.
8, device according to claim 1, it is characterized in that: axis can be flexibility or rigidity, and flexible axis fixedly is tension, makes the central lines of the center line and the heat-transfer pipe of axis, the axis two ends can be passed through knotting, be twined, or fix by spacing rivet; The spacing of rigid axis two ends can be passed through riveting, or fixes by spacing rivet, screw.
9, device according to claim 1 is characterized in that: spacing rivet is made by metal material, is hierarchic structure, and a centre bore is arranged, and the aperture is consistent with the rotor aperture axis; Spacing rivet should be slightly larger than rotor tongue and groove external diameter with the external diameter of an end of rotor contact; Other end length will meet installation dimension, and enough jaws carry out clamp to it and are fixed on the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101033172A CN101551214B (en) | 2008-04-03 | 2008-04-03 | Rotating piece type automatic-cleaning and heat-transfer enhancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101033172A CN101551214B (en) | 2008-04-03 | 2008-04-03 | Rotating piece type automatic-cleaning and heat-transfer enhancing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101551214A true CN101551214A (en) | 2009-10-07 |
| CN101551214B CN101551214B (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101033172A Expired - Fee Related CN101551214B (en) | 2008-04-03 | 2008-04-03 | Rotating piece type automatic-cleaning and heat-transfer enhancing device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893404A (en) * | 2010-08-06 | 2010-11-24 | 北京化工大学 | Arch static turbulent element in heat exchange pipe |
| CN101915514A (en) * | 2010-08-06 | 2010-12-15 | 北京化工大学 | Semi-open-type rotor |
| CN102032828A (en) * | 2010-12-21 | 2011-04-27 | 东南大学 | Fractal surface structure type heat exchange tube |
| CN102128560A (en) * | 2011-04-19 | 2011-07-20 | 北京化工大学 | Twisted belt type pendant in heat exchange pipe |
| CN102252540A (en) * | 2011-08-23 | 2011-11-23 | 东南大学 | Heat exchanger of Cantor set fractal structure type |
| WO2012037745A1 (en) * | 2010-09-20 | 2012-03-29 | 北京华夏壹泰科技有限公司 | Self-cleaning enhanced heat transfer device used for heat exchange pipe and manufacturing method thereof |
| CN103411474A (en) * | 2013-08-27 | 2013-11-27 | 北京化工大学 | High flow disturbance sphere rotor inside heat exchange pipe |
| CN104154805A (en) * | 2014-08-07 | 2014-11-19 | 北京化工大学 | Interphase blade self-oscillation rotor |
| CN104984959A (en) * | 2015-07-06 | 2015-10-21 | 山东南郊敢当环保工程有限公司 | Descaling device, pipeline comprising same and descaling method |
| CN108975455A (en) * | 2018-09-11 | 2018-12-11 | 北京化工大学 | A kind of clean oily-water seperating equipment of continuous self-cleaning |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138881B (en) * | 2013-07-09 | 2015-05-20 | 国惠环保新能源有限公司 | System for automatically cleaning inner pipe walls of heat exchanger |
-
2008
- 2008-04-03 CN CN2008101033172A patent/CN101551214B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915514A (en) * | 2010-08-06 | 2010-12-15 | 北京化工大学 | Semi-open-type rotor |
| CN101893404A (en) * | 2010-08-06 | 2010-11-24 | 北京化工大学 | Arch static turbulent element in heat exchange pipe |
| CN101915514B (en) * | 2010-08-06 | 2012-03-21 | 北京化工大学 | Semi-open-type rotor |
| WO2012037745A1 (en) * | 2010-09-20 | 2012-03-29 | 北京华夏壹泰科技有限公司 | Self-cleaning enhanced heat transfer device used for heat exchange pipe and manufacturing method thereof |
| CN102032828A (en) * | 2010-12-21 | 2011-04-27 | 东南大学 | Fractal surface structure type heat exchange tube |
| CN102032828B (en) * | 2010-12-21 | 2012-05-23 | 东南大学 | Fractal surface structure type heat exchange tube |
| 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 |
| CN102252540A (en) * | 2011-08-23 | 2011-11-23 | 东南大学 | Heat exchanger of Cantor set fractal structure type |
| CN103411474A (en) * | 2013-08-27 | 2013-11-27 | 北京化工大学 | High flow disturbance sphere rotor inside heat exchange pipe |
| CN104154805A (en) * | 2014-08-07 | 2014-11-19 | 北京化工大学 | Interphase blade self-oscillation rotor |
| CN104984959A (en) * | 2015-07-06 | 2015-10-21 | 山东南郊敢当环保工程有限公司 | Descaling device, pipeline comprising same and descaling method |
| CN108975455A (en) * | 2018-09-11 | 2018-12-11 | 北京化工大学 | A kind of clean oily-water seperating equipment of continuous self-cleaning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101551214B (en) | 2011-06-22 |
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Granted publication date: 20110622 |
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