CN201397073Y - Three-dimensional spiral crossed heat exchange tube - Google Patents
Three-dimensional spiral crossed heat exchange tube Download PDFInfo
- Publication number
- CN201397073Y CN201397073Y CN2009201081373U CN200920108137U CN201397073Y CN 201397073 Y CN201397073 Y CN 201397073Y CN 2009201081373 U CN2009201081373 U CN 2009201081373U CN 200920108137 U CN200920108137 U CN 200920108137U CN 201397073 Y CN201397073 Y CN 201397073Y
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- tube
- helix
- heat exchanger
- heat exchange
- exchanger tube
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Abstract
Disclosed is a three-dimensional spiral crossed heat exchange tube. Two ends of the heat exchange tube are respectively provided with a light tube section, the middle section of the heat exchange tubeis a three-dimensional crossed structure formed by crossing three parallel spiral lines rotating clockwise along the direction of the tube body and three parallel spiral lines rotating anticlockwisealong the tube body, and the three-dimensional crossed structure forms three complete rhombic structures in a perpendicular direction of the tube body. The spiral lines are concave on the outside of the tube and convex on the inside of the tube, and the rhombic structures are convex on the outside of the tube and concave on the inside of the tube. The heat exchange tube has the advantages of highheat exchange efficiency, fouling resistance, vibration resistance, low resistance inside the tube, long service life, being easy to be descaled and processed and the like, and is widely applied to heat exchange devices of condensers, oil cooler, heat recovery units and the like in industries of electric power, petrochemical complex, metallurgy, dairy, grain and oil and the like.
Description
Technical field
The utility model relates to a kind of three-dimensional spiral cross-exchange pipe, belongs to heat exchange reinforcement and technical field of heat exchangers.
Background technology
Pipe heat exchanger is one of most popular heat exchanger in the heat exchanger family.In industry extensive uses such as oil, chemical industry, electric power, dairy products and grain and oil.The core of pipe heat exchanger is a heat exchanger tube, and the performance that how to improve heat exchanger tube is the constantly topics of research of people.Though existing technology can both improve the heat exchange efficiency of heat exchanger tube to a certain extent, can produce very big counter productive at aspects such as scale removal, pipe internal resistance, resistance to shock, operation stress, maintenances.
" multi-head spiral groove heat exchanger tube " (ZL00250108.2) has an expansion heat exchange area in existing disclosed patent, the advantage of enhanced heat exchange, but spiral is too intensive, it is impaired serious to make body add man-hour, resistance to shock descends, the pipe internal resistance is big, is inconvenient to use conventional method to clean after the fouling, has increased maintenance cost.
" rhombus thermoexcell " (ZL03104768.8) has a good enhanced heat exchange effect, but its complex manufacturing technology, the manufacturing cost height because its whole tubular form is irregular, uses conventional method to clean after the fouling.
" ripple spiral heat exchange tube " (ZL01211430.8), " heat exchanger corrugated tube " (ZL02280199.5) and " corrugated spiral heat-exchange tube " (ZL03229223.6) spiral angle and spiral curve number are optimized, make when the heat exchange effect increases that the pipe internal resistance also reduces to some extent.Interior medium rotates to same direction but the heat exchange effect is confined to make pipe all the time, and perturbation scheme is single, and medium is unfavorable for the long-time running of equipment all the time to same direction rotation meeting formation operation stress.
Summary of the invention
The utility model provides a kind of three-dimensional spiral cross-exchange pipe, can better promote the heat exchanger effectiveness of heat exchanger tube, has that anti-tartar, easily scale removal, pipe internal resistance are little, antivibration, does not form characteristics such as operation stress, long service life.
The utility model is achieved through the following technical solutions:
At the two ends of described heat exchanger tube one section light pipe section is arranged respectively, be used for installing.
At the interlude of described heat exchanger tube is that three parallel spires that turn clockwise along the body long axis direction and three parallel spires that are rotated counterclockwise are intersected the 3 D stereo chi structure that constitutes mutually, spacing between the described parallel spires equates, it forms three complete diamond structures in the body vertical direction, and described rhombus size is identical.Helix is recessed outside pipe, the pipe internal projection; Rhombus is in the pipe outer lug, and is recessed in the pipe.
Described three parallel spires that turn clockwise and three parallel spires that are rotated counterclockwise intersect the angle a that constitutes mutually
1And a
2Complementation, a
1=2b=40～110 °.
Angle b=20～55 of described helix and body vertical direction °.
Described helix working width R=0.5～2.5mm.
Described helix working depth H=0.2～5mm.
The utility model adopts the advantage of such scheme to be:
(1) having made full use of the body surface increases heat exchange area, improves heat exchange efficiency.
(2) the pipe internal projection of helix makes medium form vortex disturbance, improves heat exchange efficiency.
(3) turn clockwise helix and be rotated counterclockwise helix and medium formed turn clockwise and be rotated counterclockwise disturbance, and form the bump disturbance at infall, improve heat exchange efficiency.
(4) the cross-helicity line has fully destroyed the static boundary-layer of being close to tube wall when medium flows in pipe, makes dirt be difficult for forming.
(5) dirt is divided into many fritters and forms the stripping point of dirt in the crosspoint, easily scale removal in the cross-helicity bundle of lines pipe.
(6) the cross-helicity line forms I-shaped muscle structure, has strengthened the mechanical strength of body, is beneficial to antivibration.
(7) angle of helix is optimized, and reduces to manage internal resistance.
(8) the cross-helicity line produces clockwise medium simultaneously and is rotated counterclockwise effect, does not produce operation stress.
(9) can make the longer service life of heat exchanger tube by above characteristics.
The utility model has increased beneficial effects such as anti-tartar, easily scale removal, antivibration when significantly improving the heat exchange effect, reduced the pipe internal resistance, has eliminated operation stress, has simplified maintenance, has prolonged service life.Compare with light pipe, maximum can improve heat exchange efficiency 60%, to energy savings, to reduce toxic emission significant.
Description of drawings:
Fig. 1 is the structural representation of heat exchanger tube;
Fig. 2 is the A-A cross section enlarged drawing of Fig. 1;
Fig. 3 is that heat exchanger tube shown in Fig. 1 is cut flattening figure open along the B-B view direction;
Fig. 4 is the helix enlarged drawing.
The specific embodiment
Further the utility model is described below in conjunction with accompanying drawing.
Among Fig. 1, three-dimensional spiral cross-exchange pipe of the present utility model two ends are light pipe sections 8, and interlude is for intersecting the three dimensional intersection stereochemical structures that constitute mutually along the right handed article one helix 1 that is parallel to each other of body, second helix 2, the 3rd helix 3 and the 4th helix 4 that is parallel to each other of rotation counterclockwise, the 5th helix 5, the 6th helix 6.Article six, helix is to form in the compacting of the outer surface of heat exchanger tube, is example with wherein a helix, and described helix concaves down at the outer surface of heat exchanger tube, causes inner surface at heat exchanger tube to form the corresponding projection of helix with outer surface; Intersect to form diamond structure 7 mutually with the helix that is rotated counterclockwise clockwise, described diamond structure 7 forms the convex outer surfaces to heat exchanger tube owing to the compacting and the extruding of adjacent four helixes, thereby in the recessed structure of the inner surface of heat exchanger tube.
As shown in Figure 2, the inscribed circle radius r of heat exchanger tube inner vortex projection maximum 9
1, the circumradius r of the outer diamond structure 7 protruding maximums 10 of heat exchanger tube
2, helix compacting depth H is:
H＝r
2-r
1＝0.2～5mm。
Among Fig. 3, B
1With B '
1Be same point on body, its line is perpendicular to heat exchange tube long axis of body direction.As can be seen, the spiral cross spider is forming three complete rhombuses perpendicular to the body direction among Fig. 3, helix with perpendicular to angle b=20～55 of body long axis direction °; Helix intersects to form angle a
1And a
2Complementation, a
1=2b=40～110 °, a
1+ a
2=180 °.
Among Fig. 4, helix width R=0.5～2.5mm.
Described three-dimensional spiral cross-exchange pipe is to process on the basis of light pipe, uses three-dimensional spiral cross-exchange pipe of the present utility model, has following variation with respect to light pipe:
(1) heat exchange area increases by 20%～80%;
(2) medium energy of flow in pipe produces eddy flow and venturi effect, improves heat exchange efficiency;
(3) the pipe internal resistance increases by 1%～10%;
(4) whole tube length shortens 5 ‰～15 ‰;
(5) r
1The light pipe internal diameter dwindles 5%～20% relatively;
(6) r
2The light pipe external diameter increases 0.8%～8% relatively;
(7) helix processing place tube wall attenuate 5%～20%;
(8) mechanical strength increases by 20%～50%;
(9) descale effect increases by 30%～80%;
(10) the operation maintenance cycle increases by 3～5 times.
Described variable quantity, by the parameter decision that the operation actual environment is selected, its parameter is helix compacting depth H, helix width R, helix and perpendicular to the angle b of body long axis direction.In plant condenser, recommend to use H=0.5mm, R=0.6mm, b=50 °; Heat exchanger in grain and oil are produced recommends to use H=3mm, R=1.0mm, b=25 °.
Described three-dimensional spiral cross-exchange pipe is recommended to use stainless steel, and materials such as copper, titanium and aluminium are suitable equally.
Described three-dimensional spiral cross-exchange pipe recommends to use the pipe of welding procedure, and other technologies such as seamless pipe are suitable equally.
Described three-dimensional helical cross-exchange pipe can use expanded joint, first postwelding to expand in installation or elder generation expands afterwards to weld with tube sheet is connected.
Described three-dimensional helical cross-exchange pipe can be widely used in the equipment such as the condenser, oil cooler, heat reclamation device of industries such as electric power, petrochemical industry, metallurgy, dairy industry and grain and oil.
Claims (6)
1. three-dimensional spiral cross-exchange pipe, it is characterized in that: respectively there is one section light pipe section at the two ends of described heat exchanger tube; Described heat exchanger tube interlude is that three parallel spires that turn clockwise along the body long axis direction and three parallel spires that are rotated counterclockwise are intersected the 3 D stereo chi structure that constitutes mutually, and it forms three complete diamond structures in the body vertical direction; Described helix is recessed at the outer surface of heat exchanger tube, in the inner surface formation of heat exchanger tube and the corresponding projection of helix of outer surface; Described diamond structure forms the convex outer surfaces to heat exchanger tube owing to the compacting and the extruding of adjacent four helixes, thereby in the recessed structure of the inner surface of heat exchanger tube.
2, three-dimensional spiral cross-exchange pipe according to claim 1 is characterized in that: the spacing between the described parallel spires equates.
3. three-dimensional spiral cross-exchange pipe according to claim 1 is characterized in that: the angle a that helix intersects to form
1And a
2Be complementary relationship, a
1=2b=40～110 °, a
1+ a
2=180 °, wherein b is the angle of helix and body vertical direction.
4. according to claim 1 or 3 described three-dimensional spiral cross-exchange pipes, it is characterized in that: the angle b of helix and body vertical direction is 20～55 °.
5. three-dimensional spiral cross-exchange pipe according to claim 1 is characterized in that: helix working depth H is 0.2～5mm.
6. three-dimensional spiral cross-exchange pipe according to claim 1 is characterized in that: helix working width R is 0.5～2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201081373U CN201397073Y (en) | 2009-05-15 | 2009-05-15 | Three-dimensional spiral crossed heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201081373U CN201397073Y (en) | 2009-05-15 | 2009-05-15 | Three-dimensional spiral crossed heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397073Y true CN201397073Y (en) | 2010-02-03 |
Family
ID=41619591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201081373U Ceased CN201397073Y (en) | 2009-05-15 | 2009-05-15 | Three-dimensional spiral crossed heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397073Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829667A (en) * | 2012-09-11 | 2012-12-19 | 天津大学 | Foam metal heat exchange tube |
| CN110234411A (en) * | 2017-02-03 | 2019-09-13 | 维美德公司 | The method of heat-transfer pipe and manufacture heat-transfer pipe |
-
2009
- 2009-05-15 CN CN2009201081373U patent/CN201397073Y/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829667A (en) * | 2012-09-11 | 2012-12-19 | 天津大学 | Foam metal heat exchange tube |
| CN110234411A (en) * | 2017-02-03 | 2019-09-13 | 维美德公司 | The method of heat-transfer pipe and manufacture heat-transfer pipe |
| US10981080B2 (en) | 2017-02-03 | 2021-04-20 | Valmet Ab | Heat transfer tube and method for manufacturing a heat transfer tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI CE MINGTAI ENERGY SAVING + ENVIRONMENTAL PROT Free format text: FORMER OWNER: LU ZHIGANG Effective date: 20110909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100190 CHANGPING, BEIJING TO: 214000 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110909 Address after: The Yangtze River Road 214000 in Jiangsu province Wuxi City Creek National hi tech Industrial Development Zone, No. 7, No. 34 Science Park District 308 room 4 block Patentee after: Wuxi CLP energy saving environmental protection science and Technology Co Ltd Address before: 100190, Beijing Changping District Huilongguan harmony home two District 12 Building 1 door 201 room Patentee before: Lu Zhigang |
|
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20130510 Decision number of declaring invalidation: 20448 Granted publication date: 20100203 |