CN101413769A - Subsection rotating multi-head spring type self-cleaning reinforced heat exchanger - Google Patents

Subsection rotating multi-head spring type self-cleaning reinforced heat exchanger Download PDF

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CN101413769A
CN101413769A CNA200810117680XA CN200810117680A CN101413769A CN 101413769 A CN101413769 A CN 101413769A CN A200810117680X A CNA200810117680X A CN A200810117680XA CN 200810117680 A CN200810117680 A CN 200810117680A CN 101413769 A CN101413769 A CN 101413769A
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springs
groups
heat exchanger
spring
cleaning
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CN101413769B (en
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孟继安
李志信
邢程
杨卫民
阎华�
关昌峰
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Tsinghua University
Beijing University of Chemical Technology
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Tsinghua University
Beijing University of Chemical Technology
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Abstract

A sectional rotation multi-head spring self-cleaning reinforced heat exchange device belongs to the technical field of self-cleaning reinforced heat exchange. The heat exchange device is characterized in that each autogyration rotor comprises at least one rotation driving impeller and a spring assembly which can be driven by fluid in pipes to rotate around a soft shaft; the rotation driving impeller comprises a rotation shaft housing sheathed on the soft shaft, the spring assembly is connected with the rotation shaft housing into a whole and rotates around the soft shaft along with the rotation shaft housing; the spring assembly comprises at least two springs which clean and decontaminate the inner wall of the heat exchange tube and reinforces heat exchange in rotation; the rate value of the equivalent diameter of the spring section of the spring assembly to the inner diameter of the heat exchange tube ranges from 1% to 15%; the rate value of the spring thread pitch of the spring assembly to the inner diameter of the heat exchange tube ranges from more than 0.4. The heat exchange device has the advantages of small flow resistance, good cleaning and decontaminating effect, marked reinforced convection heat transfer effect, long service life, etc.

Description

Subsection rotating multi-head spring type self-cleaning reinforced heat exchanger
Technical field
The invention belongs to self-cleaning reinforced heat transfer technology field, particularly about a kind of multiple projectile round spring type self-cleaning reinforced heat exchanger that is installed in the heat exchanger tube and under the tube fluid effect, rotates around the rotating shaft segmentation.
Background technology
Shell-and-tube heat exchanger is used in a large number and widely at industrial circles such as electric power, chemical industry and oil, the heat exchanger overwhelming majority that is in operation all has the phenomenons of contamination and fouling, particularly adopt the condenser and the water cooler of recirculated water cooling, and the alkali evaporator of system alkali etc.The contamination of heat exchanger and fouling cause the equipment heat transfer coefficient to reduce, and energy consumption increases, even plugging occurs and cause equipment normally to move; Fouling also can form underdeposit corrosion, has shortened the service life of equipment.At present, cleaning and scale removal mode in the shell-and-tube heat exchanger heat exchanger tube have online mode and non-online mode, and the on-line cleaning scale removal normally carries out having special advantages owing to what do not influence production.Online scale removal mainly contains methods such as rotatable spiral band/sheet/rotor class cleaning and descaling, rotation/reciprocal helical spring scale removal and glueballs cleaning and descaling in the Tube Sheet of Heat Exchanger at present, influences it but all there is certain deficiency in these cleaning and descaling modes and applies.Rotatable spiral band/sheet/rotor class descaling method, hang in its heat exchanger tube and insert spiral band/sheet/rotor scale removal object, obviously increased the contact area of fluid and solid wall surface, because the viscosity of fluid and wall have slip characteristic flow resistance is increased significantly, general resistance can increase 3-6 doubly; Spiral band/sheet/the rotor of such rotatable descaling method is generally axially long along heat exchanger tube simultaneously, and fluid is bigger to the active force of spiral band/sheet/rotor, loses efficacy than being easier to break down; And the turbulent heat transfer invigoration effect of the spiral band/sheet of such rotatable descaling method/rotor is more limited, and one-sided heat convection enhancing is no more than 30% in the general pipe." rotator type cleaning and heat-transfer enhancing device " (China Patent No.: 200520127121.9) owing to adopted segmentation axial restraint mode, disperseed the active force of fluid to rotor, thereby eliminated substantially because of fluid compare the problem that is easier to break down to the big active force of long spiral band/sheet/rotor, but still existed flow resistance to increase deficiencies such as bigger than normal.Rotating screw spring descaling method, its long helix spring hangs over the import department of heat exchanger tube by rotatable structure, owing to fluid makes its rotational structure break down easily to the big active force of long helix spring; The helical spring pitch ratio of single head is less, adds the consideration owing to intensity, and the diameter of its spring wire is bigger, thereby its flow resistance increase is also bigger significantly, and resistance increases 3-10 doubly usually.Reciprocal helical spring descaling method, its antiscaling, descaling effect is limited, sometimes under situations such as fouling is more serious even occur clogging easily; Back and forth helical spring is the single head helical spring simultaneously, equally also has the bigger deficiency of similar above-mentioned flow resistance.Present online glueballs cleaning technique is used comparatively general in plant condenser, but the glueballs that uses is the elastomer structure of many micropores softness at present, in use the hygrometric state diameter of glueballs and proportion are difficult to accurately controlled, also be easy to by mud, dirt and microorganism etc. accompanyingly, cause that the cleaning and descaling effect is desirable not enough, ball collecting rate is low, be easy to problem such as plugging; Glueballs cleans the effect of strengthening heat convection that also exists hardly.In sum, all there is certain deficiency in present cleaning and descaling technology,, cleaning bigger and problem such as descale effect is not good, the enhanced heat exchange effect is limited, break down easily as flow resistance, thereby influence it and apply.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide that a kind of flow resistance is little, cleaning and descale effect is good, can significantly strengthen heat convection and long-life self-cleaning reinforced heat exchanger, to overcome above-mentioned the deficiencies in the prior art.
The subsection rotating multi-head spring type self-cleaning reinforced heat exchanger that the present invention proposes, the plural white rotor that contains the flexible axle that is fixed on the heat exchanger tube two end supports frame, is enclosed within and is fixed on axial location cover on the flexible axle, is enclosed within on the flexible axle and can rotate around flexible axle is characterized in that: described each spinning rotor contains and can be under tube fluid drives rotates drives impeller and groups of springs around at least one of described flexible axle rotation; Described rotation drives impeller contains the rotary sleeve that is enclosed within on the flexible axle, and groups of springs and described rotary sleeve connect as one, and rotate around flexible axle jointly with rotary sleeve; Described groups of springs contains two spring at least, and this groups of springs is heat exchanging inside pipe wall cleaning and descaling and enhanced heat exchange when rotated; The span of the equivalent diameter in the spring cross section of described groups of springs and heat exchanger tube internal diameter ratio is 1%-15%; The pitch of the spring of described groups of springs is more than or equal to 0.4 with the span of the ratio of heat exchanger tube internal diameter.
Spring in the described groups of springs is single rotation direction structure, or the double rotational directions structure.Described spring is filament or laminated structure.The cross section of described spring is circle, ellipse, polygon or rounding polygon.
Described spinning rotor contains a short rotation drives impeller that is shorter in length than groups of springs axial rotary length, is positioned at any end of groups of springs.
Described spinning rotor contains two and is shorter in length than half short rotation drives impeller of groups of springs axial rotary length, lays respectively at the two ends of groups of springs.
Described spinning rotor contains the long rotation drives impeller that groups of springs axial rotary length was longer than or was equaled to a length, and its two ends connect as one by the two ends of rotary sleeve and groups of springs respectively.
The mode that described groups of springs and rotary sleeve connect as one is to connect as one by blade and connecting ring; One end of described blade and rotary sleeve are fixed and the other end and connecting ring are fixed, and the end of connecting ring and groups of springs is fixed.
The mode that described groups of springs and rotary sleeve connect as one is to connect as one by blade; One end of described blade is fixed on the rotary sleeve, the end of groups of springs and described vanes fixed.
The mode that described groups of springs and rotary sleeve connect as one is: the end of groups of springs and rotary sleeve are directly fixing.
The present invention is owing to take above technical scheme, and it has the following advantages:
1, flow resistance is little.With respect to plug-in type spiral band/sheet/rotor class descaling method in the pipe, the multi-head spiral spring of present technique and the contact area of fluid obviously reduce, thereby resistance obviously lowers; With respect to plug-in type rotation in the pipe/reciprocal helical spring descaling method, because the multi-head spiral spring of present technique and the barrier effect that the single head helical spring compares fluid reduce, and the barrier effect that the segmentation axial restraint can suitably reduce its convection cell of spring wire diameter reduces, thereby resistance obviously lowers.With respect to plug-in type automatically cleaning technology in the above-mentioned existing pipe, this subsection rotating multi-head spring type self-cleaning reinforced heat exchanger can reduce flow resistance 20%-40%.
2, cleaning and descale effect are good.With respect to spiral band/sheet/rotor class descaling method and rotation/reciprocal helical spring descaling method, the brushing frequency of multi-head spiral spring of the present invention and heat exchanger tube internal face increases, and the enhancing of the flow-disturbing at internal face place, thereby has better cleaning and descaling effect; With respect to the glueballs cleaning technique, the present invention has free of discontinuities and cleans uniform characteristics, thereby has better cleaning and descaling effect.
3, significantly strengthen heat convection.The present invention makes the fluid near wall place in the heat exchanger tube obtain significant rotation flow-disturbing, and makes the fluid near wall place produce many longitudinal turbulences of rotation, thus the remarkable interior heat convection of enhanced tube.With respect to above-mentioned existing spiral band/sheet/rotor class descaling method and rotation/reciprocal helical spring descaling method, this subsection rotating multi-head spring type self-cleaning reinforced heat exchanger can make intraductal heat exchange further strengthen 20%-50%.
4, the long-life.The present invention is owing to adopted spinning bull spring and rotary blade structure combining, spinning bull spring can obtain good cleaning and descaling and enhanced heat exchange effect, rotary blade can make the spinning rotor of present technique produce rotation under lower rate of flow of fluid condition simultaneously, thereby can be under operating condition with lower spinning speed rotation and can obtain reasonable cleaning and descaling and enhanced heat exchange effect, prolonged the service life of spinning rotor.Because the little and segmentation axial restraint of flow resistance, its tumbler stressed little, thereby also have the long-life.
Description of drawings
Fig. 1 is the structural representation of embodiments of the invention one;
Fig. 2 is the bull spring spinning rotor structure schematic diagram () of embodiments of the invention one;
Fig. 3 is an A-A cross section view among Fig. 2;
Fig. 4 is the bull spring spinning rotor structure schematic diagram (two) of embodiments of the invention one;
Fig. 5 is the bull spring spinning rotor structure schematic diagram (three) of embodiments of the invention one;
Fig. 6 is the bull spring spinning rotor structure schematic diagram (four) of embodiments of the invention one;
Fig. 7 is a B-B cross section view among Fig. 6;
Fig. 8 is a kind of three design sketch of embodiments of the invention one;
Fig. 9 is the structural representation of embodiments of the invention two;
Figure 10 is the bull spring spinning rotor structure schematic diagram of embodiments of the invention two;
Figure 11 is a C-C cross section view among Figure 10;
Figure 12 is a kind of three design sketch of embodiments of the invention two;
Figure 13 is the structural representation of embodiments of the invention three;
Figure 14 is the bull spring spinning rotor structure schematic diagram () of embodiments of the invention three;
Figure 15 is a D-D cross section view among Figure 14;
Figure 16 is the bull spring spinning rotor structure schematic diagram (two) of embodiments of the invention three.
Figure 17 is an E-E cross section view among Figure 16
Figure 18 is the bull spring spinning rotor structure schematic diagram () of embodiments of the invention four
Figure 19 is a F-F cross section view among Figure 19
Figure 20 is a kind of three design sketch of the bull spring spinning rotor of embodiments of the invention four
Figure 21 is the bull spring spinning rotor structure schematic diagram (two) of embodiments of the invention four
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
Embodiment one
As shown in Figure 1, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger of the present invention, comprise: (the diagram heat exchanger tube is for dissecing local diagrammatic sketch afterwards to be installed in the bracing frame at heat exchanger tube 1 two ends, bracing frame does not draw as routine techniques), two ends are fixed on flexible axle 2 on the bracing frame, a plurality of axial location cover 3 that is enclosed within and is fixed on the flexible axle 2, and a plurality of be enclosed within on the flexible axle and can be around the compositions such as spinning rotor 4 of flexible axle 2 rotations.Dissecing shown in Fig. 14 spinning rotors 4 are arranged in the local heat exchanger tube, can be right after between the spin rotor, also the space can be arranged.
Axial location cover 3 is fixed on the flexible axle 2, is close to the spinning rotor usually, and axial location cover 3 has limited spinning rotor 4 and move axially axial deformation with spring on flexible axle 2.Tube fluid is when flowing through white rotor 4, and fluid is produced active forces to spinning rotor 4, because axially the stopping and locate of axial location cover 3, spinning rotor 4 can only rotate and can not travel forward with fluid around flexible axle 2.Each spinning rotor 4 can be distinguished under the effect of fluid separately around flexible axle 2 rotations, and the contact-making surface of axial location cover 3 and spinning rotor 4 bears the axial force of fluid to spinning rotor 4 as plain bearing surfaces.Under the effect of tube fluid, spinning rotor 4 is pressed the certain speed rotation, its bull spring brushing heat exchanger tube inwall and the flow-disturbing that strengthens the internal face place, thereby has a good cleaning and descaling effect, the bull spring also makes the fluid near wall place in the heat exchanger tube obtain significant rotation flow-disturbing simultaneously, and the fluid that makes the near wall place produces many longitudinal turbulences of rotation, thus the remarkable interior heat convection of enhanced tube.The structural design of the spinning rotor of present embodiment, owing to adopted groups of springs and drives impeller structure combining, spinning bull spring can obtain good cleaning and descaling and enhanced heat exchange effect, drives impeller can make the spinning rotor of present technique produce rotation under lower rate of flow of fluid condition simultaneously, thereby can be under operating condition with lower spinning speed rotation and can obtain reasonable cleaning and descaling and enhanced heat exchange effect, prolonged the service life of spinning rotor.
Fig. 2 is one of spinning rotor structure schematic diagram of embodiments of the invention one, and Fig. 3 is the A-A cross section view of Fig. 2.In Fig. 2 and Fig. 3,5 is rotary sleeve, and 6 is blade, and 7a is the spring wire of groups of springs, and 8 is connecting ring, and rotary sleeve 5 is formed the rotation drives impeller with blade 6, the length that is shorter in length than groups of springs of rotation drives impeller.The connection of each parts, except that the monolithic construction that adopts molding/methods such as casting to make, can also to adopt be bonding/connection of methods such as welding.For the bonding strength that strengthens each parts can be provided with structures such as some reinforcement/ribs in the junction.
The spinning rotor of embodiments of the invention one, it is characterized in that: the spinning rotor is made up of the groups of springs that connects as one and rotation drives impeller etc., the rotation drives impeller drives the groups of springs that connects as one with impeller and produces rotation under the driving of tube fluid, thereby makes the effect that obtains cleaning and descaling and enhanced heat exchange in the heat exchanger tube.
The spring wire of the spinning rotor of present embodiment is that rotation direction is single dextrorotation, also can be single left-handed, can also be dextrorotation+left-handed mixing rotation direction.
The cross section of the spring of the spinning rotor of present embodiment is circular, also can be ellipse or approximate ellipsoidal, also can for triangle, quadrangle and other polygon with and the polygon of rounding etc.; The spring of the spinning rotor of present embodiment is a filament, also can be laminated structure.
(noncircular cross section is an equivalent equivalent circular tee section diameter to the diameter in the spring wire cross section of the spinning rotor of present embodiment, promptly be equivalent to the circular cross-section diameter of sectional area when identical, be called for short equivalent diameter) be 1.5mm, the internal diameter of heat exchanger tube is 23mm, the ratio of spring wire diameter and heat exchanger tube internal diameter is 6.5%, and the span of its spring wire diameter and heat exchanger tube internal diameter ratio is 1%-15%.
The pitch of the spring wire of the spinning rotor of present embodiment (spring wire is around the axle axial distance in one week) is 48mm, and the pitch of spring wire is 2.1 with the ratio of heat exchanger tube internal diameter.The pitch of spring wire is more than or equal to 0.4 with the span of the ratio of heat exchanger tube internal diameter.
The spring wire head number of the spinning rotor of present embodiment is 3, also can be more than 2 or 3, and promptly the spring wire head number of spinning rotor is more than or equal to 2.The number of turns of the spring wire of the spinning rotor of present embodiment is 1; The number of turns of spring wire also can design by different operating conditions, general no more than 5 circles.
At the subsection rotating multi-head spring type self-cleaning reinforced heat exchanger of embodiment one as shown in Figure 1, the quantity of its axial location cover can be provided with according to different structure and needs.For being provided with 1 axial location, each spinning rotor 4 overlapping 3 among the embodiment one as shown in Figure 1; Also can several axial location covers be set for each spinning rotor; Or an axial location cover is set for every several spinning rotors.The setting principle of axial location cover is to make the spinning rotor can also guarantee certain service life under the situation by certain rotating speed rotation under the normal operating condition condition.
The spinning two ends of rotor of present embodiment respectively is provided with one and is shorter in length than half short rotation drives impeller of groups of springs axial rotary length, also can an end (as Fig. 4) or the middle short rotation drives impeller that is shorter in length than groups of springs axial rotary length that is provided with; The rotation drives impeller of the spinning rotor of present embodiment is short rotation drives impeller structure, the rotation drives impeller also can be long rotation drives impeller structure, as Fig. 5, the length of long rotation drives impeller generally is longer than or is equaled groups of springs axial rotary length, and its two ends are the two ends relative fixed by rotary sleeve and groups of springs respectively.In Fig. 5,6 is blade, and 9 are long rotary sleeve, and blade 6 has been formed long rotation drives impeller with long rotary sleeve 9.The few characteristics of rotation drives impeller quantity are relatively simple for structure, and the characteristics that impeller quantity is many are that stability is better and driving force is bigger.The rotation drives impeller is relatively simple for structure for the characteristics of short blade wheel structure, and the rotation drives impeller is that the come into leaves characteristics of wheel construction are to use the life-span long.
The manufactured materials of the spinning rotor of present embodiment is plastics, also can be other macromolecular materials such as rubber, also can be metal materials such as stainless steel or titanium alloy, also can be composite.
Fig. 6 is the another kind of similarly schematic diagram of structure of the spinning rotor of embodiments of the invention one, and Fig. 7 is the B-B cross section view of Fig. 6.In Fig. 6 and Fig. 7,6 is blade, and 9 is rotary sleeve, and 7b is the bull spring wire, and rotary sleeve 9 is formed the rotation drives impeller with blade 6.The difference of Fig. 6 and Fig. 5 is: two connecting rings at 3 spring wires and two ends connect as one the formula structure in Fig. 5, and groups of springs connects as one the spinning rotor of structure by blade 6 and rotary sleeve 9 then; And 2 spring wire 7b directly are connected with rotary sleeve 9 and are one in Fig. 6, and rotary sleeve 9 is formed the rotation drives impeller with blade 6, and groups of springs has constituted the spinning rotor with the rotation drives impeller.
Fig. 8 is a kind of three design sketch of embodiments of the invention one.In Fig. 8,2 spinning rotors are arranged in cuing open the part heat exchanger tube that shows, each spinning rotor is provided with an axial location cover; The spinning rotor is made up of 2 three blade rotation drives impeller and six spring assemblies.
Embodiment two
Fig. 9 is the structural representation of embodiments of the invention two.In Fig. 9,1 is heat exchanger tube (diagram heat exchanger tube for dissecing diagrammatic sketch), 2 flexible axles that are fixed for two ends, and 3 is the axial location cover, 10 is the spinning rotor.The difference of present embodiment and the foregoing description is: the spinning rotor of present embodiment is the netted multiple projectile round spring structure of double rotational directions, and embodiment one is the multiple projectile round spring structure of single rotation direction.
Figure 10 is the spinning rotor structure schematic diagram of embodiments of the invention two, and Figure 11 is the C-C cross section view of Figure 10.In Figure 10 and Figure 11,6 is rotating vane, and 8 is connecting ring, and 9 is rotary sleeve, and 11 is the cancellated bull groups of springs of double rotational directions.Rotary sleeve 9 is formed the rotation drives impeller with blade 6.Bull groups of springs 11 is two left-handed and two double rotational directions network structures that the dextrorotation spring wire is formed.The two ends of bull groups of springs 11 link to each other with connecting ring 8, and connecting ring 8 links to each other with an end of blade 6 again.The cancellated bull groups of springs 11 of double rotational directions links together with connecting ring 8, rotary sleeve 9 and blade 6 and forms bull spring rotor.
The spinning rotor of present embodiment is single long rotation drives impeller structure (length of general long rotation drives impeller is longer than the axial rotary length of groups of springs), also can be a plurality of short rotation drives impeller structures (the axial rotary length that is shorter in length than groups of springs of general short rotation drives impeller).Each spring of the spinning rotor of present embodiment has identical or close screw pitch, also can be to have different screw pitches.
The position that mutually combines of the cancellated bull spring of the spinning rotor of this present embodiment is the monolithic construction that molding/methods such as casting are made, and also can be multilayer architecture.The intersection contact position of the netted bull spring of multiple field can be by welding/method such as bonding links together also can be for not linking together, and the former the firm latter makes simply.
Figure 12 is a kind of three design sketch of embodiments of the invention two.In Figure 12,2 spinning rotors are arranged in cuing open the part heat exchanger tube that shows, each spinning rotor is provided with 2 axial location covers; The spinning rotor is made up of 2 three blade rotation drives impeller and bull groups of springs (three left-handed and three double rotational directions or network structures that the dextrorotation spring wire is formed).
Embodiment three
Figure 13 is the structural representation of embodiments of the invention three.In Figure 13,1 is heat exchanger tube (diagram heat exchanger tube for dissecing diagrammatic sketch), 2 flexible axles that are fixed for two ends, and 3 is the axial location cover, 12 is the spinning rotor.The difference of present embodiment and the foregoing description is: the spinning rotor of present embodiment is that an end of bull spring is connected on the rotary sleeve, the other end is in free state, and embodiment one and embodiment two the two ends of bull spring connect as one mutually.Present embodiment is with respect to embodiment one and embodiment two, and its flow resistance is littler.
Figure 14 is the spinning rotor structure schematic diagram of embodiments of the invention three, and Figure 15 is the D-D cross section view of Figure 14.In Figure 14 and Figure 15,5 is rotary sleeve, and 6 is rotating vane, and 7c is that an end is connected to one and the other end is in three spring wires of free state, and three spring wires connect as one by rotary sleeve 5.Rotary sleeve 5 is formed the rotation drives impeller with blade 6.Bull spring wire 7c and rotary sleeve 5 and blade 6 link together and form bull spring rotor.
Figure 16 is the another kind of similarly schematic diagram of structure of the spinning rotor of embodiments of the invention three, and Figure 17 is the E-E cross section view of Figure 16.In Figure 16 and Figure 17,5 is rotary sleeve, and 6 is rotating vane, and 7d is three spring wires, and the one end is connected on the rotary sleeve by connecting ring and blade, and the other end is in free state.The difference of Figure 16 and Figure 14 is: a connecting ring of 3 spring wires and an end connects as one the formula structure in Figure 16, and groups of springs connects as one the spinning rotor of structure by blade 6 and rotary sleeve 5; And 3 spring wire 7c directly are connected with rotary sleeve 5 and are one in Figure 14, and rotary sleeve 5 is formed the rotation drives impeller with blade 6, and groups of springs has constituted the spinning rotor with the rotation drives impeller.
Embodiment four
As shown in figure 18, the groups of springs of present embodiment is made up of four springs, under suitable flox condition, the spring of groups of springs produces rotation under the promotion of tube fluid, thereby the structure that is connected to form by four helical springs and rotary sleeve also constituted the inscape of rotation drives impeller, also is a kind of rotation drives impeller simultaneously so this kind structure is the multiple projectile round spring assembly.Figure 19 is the F-F cross section view among Figure 18.Figure 20 is a kind of three design sketch of the spinning rotor of embodiments of the invention three.What embodiment four was different with the foregoing description is that the groups of springs of embodiment four and rotary sleeve are formed drives structure jointly.It is the occasion that higher speed flows that present embodiment mainly is suitable for tube fluid.The spinning rotor of present embodiment is single rotary sleeve, also can a rotary sleeve (as Figure 21) respectively be set for two ends.
More than although some embodiment are disclosed; the structure of subsection rotating multi-head spring type self-cleaning reinforced heat exchanger can change; the present invention should not be subjected to the restriction of the various embodiments described above, and all equivalent transformations that carries out according to the principle of the invention all should not got rid of outside protection scope of the present invention.

Claims (10)

1, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger, the plural spinning rotor that contains the flexible axle that is fixed on the heat exchanger tube two end supports frame, is enclosed within and is fixed on axial location cover on the flexible axle, is enclosed within on the flexible axle and can rotate around flexible axle is characterized in that: described each spinning rotor contains and can be under tube fluid drives rotates drives impeller and groups of springs around at least one of described flexible axle rotation; Described rotation drives impeller contains the rotary sleeve that is enclosed within on the flexible axle, and groups of springs and described rotary sleeve connect as one, and rotate around flexible axle jointly with rotary sleeve; Described groups of springs contains two spring at least, and this groups of springs is heat exchanging inside pipe wall cleaning and descaling and enhanced heat exchange when rotated; The span of the equivalent diameter in the spring cross section of described groups of springs and heat exchanger tube internal diameter ratio is 1%-15%; The pitch of the spring of described groups of springs is more than or equal to 0.4 with the span of the ratio of heat exchanger tube internal diameter.
2, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1 is characterized in that: the spring in the described groups of springs is single rotation direction structure, or the double rotational directions structure.
3, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1 is characterized in that described spring is filament or laminated structure.
4, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1 is characterized in that: the cross section of described spring is circle, ellipse, polygon or rounding polygon.
5, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1 is characterized in that: described spinning rotor contains a short rotation drives impeller that is shorter in length than groups of springs axial rotary length, is positioned at any end of groups of springs.
6, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1, it is characterized in that: described spinning rotor contains two and is shorter in length than half short rotation drives impeller of groups of springs axial rotary length, lays respectively at the two ends of groups of springs.
7, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1, it is characterized in that: described spinning rotor contains the long rotation drives impeller that groups of springs axial rotary length was longer than or was equaled to a length, and its two ends connect as one by the two ends of rotary sleeve and groups of springs respectively.
8, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1 is characterized in that, the mode that described groups of springs and rotary sleeve connect as one is to connect as one by blade and connecting ring; One end of described blade and rotary sleeve are fixed and the other end and connecting ring are fixed, and the end of connecting ring and groups of springs is fixed.
9, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1 is characterized in that, the mode that described groups of springs and rotary sleeve connect as one is to connect as one by blade; One end of described blade is fixed on the rotary sleeve, the end of groups of springs and described vanes fixed.
10, subsection rotating multi-head spring type self-cleaning reinforced heat exchanger as claimed in claim 1 is characterized in that, the mode that described groups of springs and rotary sleeve connect as one is: the end of groups of springs and rotary sleeve are directly fixing.
CN200810117680XA 2008-08-04 2008-08-04 Subsection rotating multi-head spring type self-cleaning reinforced heat exchanger Expired - Fee Related CN101413769B (en)

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CN108895885A (en) * 2018-07-18 2018-11-27 芜湖青悠静谧环保科技有限公司 One kind is novel can self-cleaning heat exchange pipeline
CN110345797A (en) * 2019-07-02 2019-10-18 宁波方太厨具有限公司 Heat exchanger tube, heat exchanger and gas heater
CN110345798A (en) * 2019-07-02 2019-10-18 宁波方太厨具有限公司 Heat exchanger tube, heat exchanger and gas heater

Cited By (13)

* Cited by examiner, † Cited by third party
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CN102116594B (en) * 2009-12-31 2012-12-12 北京化工大学 Radial asymmetric blade combined rotor in heat exchange tube
CN102116594A (en) * 2009-12-31 2011-07-06 北京化工大学 Radial asymmetric blade combined rotor in heat exchange 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
CN102151427A (en) * 2011-01-25 2011-08-17 清华大学 Electrically-driven or hybrid-driven internal rotation cleaning fixed net type collecting device
CN102645119B (en) * 2012-05-10 2013-08-14 北京化工大学 Composite rotor in heat exchange tube
CN102645119A (en) * 2012-05-10 2012-08-22 北京化工大学 Composite rotor in heat exchange tube
CN102645120A (en) * 2012-05-10 2012-08-22 北京化工大学 Low drive spoiler rotor in heat exchange tube
CN104154805A (en) * 2014-08-07 2014-11-19 北京化工大学 Interphase blade self-oscillation rotor
CN106700370A (en) * 2016-12-07 2017-05-24 重庆渝青机械配件制造有限公司 Sectional band
CN106595383A (en) * 2016-12-31 2017-04-26 上海康恒环境股份有限公司 Condenser cleaning device based on impeller turbulent flow effect
CN108895885A (en) * 2018-07-18 2018-11-27 芜湖青悠静谧环保科技有限公司 One kind is novel can self-cleaning heat exchange pipeline
CN110345797A (en) * 2019-07-02 2019-10-18 宁波方太厨具有限公司 Heat exchanger tube, heat exchanger and gas heater
CN110345798A (en) * 2019-07-02 2019-10-18 宁波方太厨具有限公司 Heat exchanger tube, heat exchanger and gas heater

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