CN103017570A - Self-support type heat exchanger with micro wavy tubes and straight tubes mixedly arranged - Google Patents
Self-support type heat exchanger with micro wavy tubes and straight tubes mixedly arranged Download PDFInfo
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- CN103017570A CN103017570A CN2013100128320A CN201310012832A CN103017570A CN 103017570 A CN103017570 A CN 103017570A CN 2013100128320 A CN2013100128320 A CN 2013100128320A CN 201310012832 A CN201310012832 A CN 201310012832A CN 103017570 A CN103017570 A CN 103017570A
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Abstract
The invention aims to provide a self-support type heat exchanger with micro wavy tubes and straight tubes mixedly arranged. The self-support type heat exchanger comprises a shell, an upper tube plate, a lower tube plate, the micro wavy tubes and the straight tubes, the upper tube plate and the lower tube plate form a closed space, the micro wavy tubes and the straight tubes are mounted in the closed space, an upper seal is arranged on the left side of the upper tube plate, a lower seal is arranged on the right side of the lower tube plate, the upper seal is communicated with the pipe side inlet, the lower seal is communicated with a tube side outlet, the micro wavy tubes and the straight tubes are respectively communicated with the upper seal and the lower seal, a shell outlet is arranged on the shell and beside the upper tube plate, and a shell inlet is arranged beside the lower tube plate. Fluid flowing in the tubes can generate violent secondary flow by the aid of the waveform structure of the micro wavy tubes, and accordingly, heat exchange in the tubes is evidently enhanced. When the tubes are identical in length, the practical length of the micro wavy tubes is much larger than that of the straight tubes, heat exchange area is greatly enlarged, and additional reinforcing action is achieved.
Description
Technical field
What the present invention relates to is a kind of heat exchanger of enhanced heat exchange technical field.
Background technology
Heat exchanger is widely used in the numerous areas such as oil, chemical industry, refrigeration, generating, and wherein the shared ratio of shell-and-tube heat exchanger is maximum, is described as " mother of heat transfer " of industrial process.
The core component of shell-and-tube heat exchanger is heat-transfer pipe, and the quality of its exchange capability of heat has directly determined the quality of heat exchanger performance.Along with deepening continuously of enhanced heat exchange technical research, people develop a lot of enhanced heat exchange elements, and corrugated pipes is one of them.The corrugated pipes utilization makes tube fluid produce strong Secondary Flow when flowing along the warp architecture of the positive anti-change of axis direction, thereby play the effect of enhanced heat exchange, and its warp architecture can produce perturbation action equally to extratubal fluid, and especially effect is more obvious when tube bank is densely arranged.
Utilizing corrugated pipes making shell-and-tube heat exchanger that two aspect problems are arranged is to be worth conscientiously research:
1. the crooked radian of corrugated pipes.
The crooked radian of corrugated pipes has determined the size of the interior secondary strength of flow of pipe and flow resistance, and the larger Secondary Flow of radian is stronger, and heat exchange property is better, but resistance is also larger; In addition, larger crooked radian is unfavorable for restraining the arranging of shell side space, and the volume of heat exchanger is increased, and therefore when utilizing corrugated pipes to make heat exchanger, the crooked radian of pipe is difficult for excessive.
2. the shell-side of corrugated pipes supports
If adopt traditional segmental baffle that tube bank is supported, because in axial direction there is crooked radian in tube bank, the requirement on machining accuracy of tube bank and deflection plate is significantly improved, and can make the mounting process of deflection plate become very complicated; In addition, the existence of deflection plate also can significantly weaken the disturbance that corrugated pipes itself produces shell-side fluid.Therefore, the support problem of corrugated pipes tube bank needs to be resolved hurrily.
Both at home and abroad the research of Wave tube heat exchanger is not yet fully carried out at present, also very few about the Patents of Wave tube heat exchanger.Existing structural design is very simple, the structure of corrugated pipes, concrete arrangement and the major issues such as arrangement of pipe on tube sheet in housing are not all proposed clear and definite scheme (number of patent application: 94225614.X), can't satisfy the specification requirement of heat exchanger actual production and use.Other alternate conceptual design exist also that heat exchange tube structure is complicated, processing and manufacturing is difficult, be difficult to bear the distinct issues such as high pressure, and the shell-side structure can't satisfy the designing requirement of water-water heat exchange, and the application scenario only limits to the cooling system (number of patent application: 200610165381.4) of automobile exhaust gas.
Summary of the invention
The object of the present invention is to provide that processing is simple, reliable, the little corrugated pipes and straight tube mixing arranged self-supporting type heat exchanger with very strong exchange capability of heat of supporting construction between compact conformation, pipe.
The object of the present invention is achieved like this:
The little corrugated pipes of the present invention and straight tube mixing arranged self-supporting type heat exchanger, it is characterized in that: comprise housing, upper perforated plate, lower perforated plate, little corrugated pipes, straight tube, housing, upper perforated plate, lower perforated plate form confined space, little corrugated pipes and straight tube are installed in the confined space, the upper perforated plate left side arranges upper cover, the lower perforated plate right side arranges low head, the side-entrance of upper cover communicating pipe, low head communicating pipe side outlet, little corrugated pipes and straight tube are communicated with upper cover and low head respectively, on housing, other shell-side outlet, the other shell-side inlet that arranges of lower perforated plate of arranging of upper perforated plate.
The present invention can also comprise:
1, described little corrugated pipes is comprised of linear pipe and the middle waveform pipe at two ends, the waveform pipe is comprised of the circular arc that crooked radian equates, the radian of circular arc is not more than 60 degree, and the circular arc of the circular arc of a forward bending and a back-flexing consists of a circular arc cycle.
2, little corrugated pipes and straight tube are arranged in the mode that replaces in the housing, namely except the edge, all be set to straight tube around every little corrugated pipes, all be set to little corrugated pipes around the every straight tube, straight tube contacts with microwave wave pipeline, form the structure that supports mutually, the diameter of straight tube is not less than the diameter of corrugated pipes.
3, on the cutaway view of little corrugated pipes and straight tube mixing arranged self-supporting type heat exchanger body, adjacent three little corrugated pipes and three straight tubes consist of equilateral triangle, three little corrugated pipes are three limits of equilateral triangle, and three straight tubes are three summits of equilateral triangle.
4, the constraint circle is set outside the straight tube of outermost or little corrugated pipes, the inner edge of constraint circle and straight tube or little corrugated pipes outer rim of outermost are tangent vertically.
5, whenever two or three circular arc cycles arrange a constraint circle.
6, at constraint circle outside fixed installation pull bar, the two ends of pull bar be connected respectively upper perforated plate and lower perforated plate.
7, between constraint circle and housing, little corrugated pipes also is installed or/and straight tube.
Advantage of the present invention is:
1. produce strong Secondary Flow when the wavy shaped configuration of little corrugated pipes can make tube fluid flow, thereby significantly strengthen intraductal heat exchange; And for shell-side, intensive wave structure can produce the strong effect of mixing to shell-side fluid, and heat exchange is strengthened greatly; In addition, when tube bank length was identical, the physical length of little corrugated pipes will can be brought the significantly lifting of heat exchange area thus much larger than length of straight pipe, thereby plays additional invigoration effect.
2. the processing method of little corrugated pipes is simple, does not destroy heat exchanger tube frame for movement, and is less on its mechanical performance impact, can satisfy the working environment that smooth straight is suitable for; The wave structure of pipe can be absorbed in by suitable deformation the thermal stress that pipe is heated and produces when inhomogeneous; Flow is when wave structure, and flow direction constantly changes, and the souring of generation can suppress the deposition of pipe surface dirt, has good automatically cleaning ability.
3. saved support component between the pipe such as deflection plate, simplified the structure of heat exchanger, saved material, made installation more simple, reliable; In addition, save deflection plate and also can significantly reduce tube vibration and the fatigue rupture that brings when the dirt deposition problem brought when shell-side pressure drop and deflection plate exist and fluid cross are washed away tube bank, exchange capability of heat and the service life of having improved heat exchanger.
4. the machining accuracy of corrugated pipes and the quality of fit of mixed tube bundle can be suitably relaxed in the existence of regular hexagon constraint circle, also can effectively solve outermost corrugated pipes and light pipe and can not get the better problem of constraint; In addition, regular hexagon constraint circle can also be filled up the space between tube bank and the heat exchanger shell, effectively reduces bypass flow.
5. the factually pull bar of border situation welding some of each limit lateral root is enclosed in constraint, has not only realized the axial restraint of constraint circle, and can further reduce the shell side bypass flow, improves heat exchange efficiency.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is microwave shape wave heat exchanger tube schematic diagram;
Fig. 3 is self-supporting cellular construction 3D schematic diagram;
Fig. 4 is heat exchanger tube sectional view schematic diagram;
Fig. 5 is the 3D schematic diagram (the outer full pull bar assembling of constraint circle) of tube bank part assembling;
Fig. 6 restrains the 3D schematic diagram (constraint circle outside link and microwave wave heat exchanger tube hybrid precast) of part assembling.
The specific embodiment
For example the present invention is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～6, the present invention includes housing 1, little corrugated pipes 2, straight tube 3, pull bar 4, constraint circle 5, tube sheet (6,7), upper cover 8, low head 9, pipe side-entrance 10, pipe side outlet 11, shell-side inlet 12 and shell-side outlet 13, shell-side inlet pipe 12 on the housing 1 and shell-side outlet 13 employing sides are advanced side and are gone out form, be installed in the shell-side two ends near the position of low head 9 and upper cover 8, along flowing into the housing vertical direction and outflow shell-side space, angle between shell-side inlet pipe 12 and the shell-side outlet 13 can be for arbitrarily angled according to installation requirement, pipe side-entrance pipe 10 and pipe side outlet pipe 11 lay respectively at the center of upper cover 8 and low head 9, the heat-exchanging tube bundle of heat exchanger is made of little corrugated pipes 2 and straight tube 3, tube bank does not need deflection plate to support, but rely on the contact of self and make little corrugated pipes and straight tube play the effect of mutual support, the shell-side fluid of described heat exchanger and tube side fluid adopt reflux type to carry out heat exchange, when carrying out heat exchange, shell-side fluid is flowed into by shell-side inlet pipe 12, plunders outside to be flowed out by shell-side outlet 13 after heat exchange is finished in tube bank; Tube side fluid flows into upper covers 8 by pipe side-entrance 10, and the heat-transfer pipe interface on tube sheet 6 flows into tube bank, flows into low head 9 by the heat-transfer pipe interface on the tube sheet 7 finish heat exchange in pipe after, at last by pipe side outlet pipe 11 outflow heat exchangers.
The microwave shape wave heat exchanger tube schematic diagram shown in 2 by reference to the accompanying drawings, the little corrugated pipes that uses in the heat exchanger is comprised of straight length and the middle bend loss at two ends, wherein the length of straight length is slightly larger than the thickness of tube sheet, and bend loss is comprised of the circular arc that some crooked radians equate, crooked radian is generally below 60 °.The bend loss of little corrugated pipes is divided into some cycles, comprise the arc structure of a forward bending and the arc structure of a back-flexing in each cycle, and all arc structures is in the same plane.Little corrugated pipes can carry out repeatedly bending machining to light pipe by pipe bending machine and obtain.
The self-supporting cellular construction 3D schematic diagram shown in 3 by reference to the accompanying drawings, take the situation of center pipe diameter and little corrugated pipes equal diameters as example, center pipe arranged around 6 little corrugated pipes, the waveform of these little corrugated pipes is about this light pipe axial symmetry, light pipe directly contacts with crest or the trough of little corrugated pipes, supports each other.
The heat exchanger tube sectional view schematic diagram shown in 4 by reference to the accompanying drawings, take the situation of center pipe diameter and little corrugated pipes equal diameters as example, the arrangement mode of tube bank on tube sheet is triangular arranged (or regular hexagon arrangement).The most inboard orthohexagonal length of side is tube center distance on the tube sheet.Outside the center, the mode of replacing according to ripple-orthogonal is stringing successively, and final so that every light pipe (except the edge) is uniform 6 corrugated pipes on every side, and the crest of every corrugated pipes (except the edge) and trough place all have light pipe to support.After stringing is finished, restrain external demand at the maximum regular hexagon of institute's cloth and add a regular hexagon constraint of cover circle, inner edge and mixed tube bundle outer rim that constraint is enclosed are tangent vertically.
The 3D schematic diagram that partly assembles of the tube bank shown in 5,6 by reference to the accompanying drawings, take the situation of center pipe diameter and little corrugated pipes equal diameters as example, along the periodic arrangement of axial 2 the little corrugated pipes of tube bank a constraint circle, and the heat-transfer pipe that pull bar is housed and adds in each outside, limit of constraint circle, wherein pull bar is connected together with the constraint lap welding, so not only can enclose fixation to constraint, and filled up and restrained shell side space on every side, having reduced bypass flow, is that the exchange capability of heat of heat exchanger has had further lifting.
Claims (8)
1. little corrugated pipes and straight tube mixing arranged self-supporting type heat exchanger, it is characterized in that: comprise housing, upper perforated plate, lower perforated plate, little corrugated pipes, straight tube, housing, upper perforated plate, lower perforated plate form confined space, little corrugated pipes and straight tube are installed in the confined space, the upper perforated plate left side arranges upper cover, the lower perforated plate right side arranges low head, the side-entrance of upper cover communicating pipe, low head communicating pipe side outlet, little corrugated pipes and straight tube are communicated with upper cover and low head respectively, on housing, other shell-side outlet, the other shell-side inlet that arranges of lower perforated plate of arranging of upper perforated plate.
2. little corrugated pipes according to claim 1 and straight tube mixing arranged self-supporting type heat exchanger, it is characterized in that: described little corrugated pipes is comprised of linear pipe and the middle waveform pipe at two ends, the waveform pipe is comprised of the circular arc that crooked radian equates, the radian of circular arc is not more than 60 degree, and the circular arc of the circular arc of a forward bending and a back-flexing consists of a circular arc cycle.
3. little corrugated pipes according to claim 2 and straight tube mixing arranged self-supporting type heat exchanger, it is characterized in that: little corrugated pipes and straight tube are arranged in the mode that replaces in the housing, namely except the edge, all be set to straight tube around every little corrugated pipes, all be set to little corrugated pipes around the every straight tube, straight tube contacts with microwave wave pipeline, forms the structure that supports mutually, and the diameter of straight tube is not less than the diameter of corrugated pipes.
4. little corrugated pipes according to claim 3 and straight tube mixing arranged self-supporting type heat exchanger, it is characterized in that: on the cutaway view of little corrugated pipes and straight tube mixing arranged self-supporting type heat exchanger body, adjacent three little corrugated pipes and three straight tubes consist of equilateral triangle, three little corrugated pipes are three limits of equilateral triangle, and three straight tubes are three summits of equilateral triangle.
5. little corrugated pipes according to claim 4 and straight tube mixing arranged self-supporting type heat exchanger is characterized in that: outside the straight tube of outermost or little corrugated pipes the constraint circle is set, the inner edge of constraint circle and straight tube or little corrugated pipes outer rim of outermost are tangent vertically.
6. little corrugated pipes according to claim 5 and straight tube mixing arranged self-supporting type heat exchanger is characterized in that: whenever two or three circular arc cycles arrange a constraint circle.
7. little corrugated pipes according to claim 6 and straight tube mixing arranged self-supporting type heat exchanger is characterized in that: at constraint circle outside fixed installation pull bar, and the two ends of pull bar be connected respectively upper perforated plate and lower perforated plate.
8. little corrugated pipes according to claim 7 and straight tube mixing arranged self-supporting type heat exchanger is characterized in that: between constraint circle and housing, little corrugated pipes also is installed or/and straight tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100128320A CN103017570A (en) | 2013-01-14 | 2013-01-14 | Self-support type heat exchanger with micro wavy tubes and straight tubes mixedly arranged |
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| CN2013100128320A CN103017570A (en) | 2013-01-14 | 2013-01-14 | Self-support type heat exchanger with micro wavy tubes and straight tubes mixedly arranged |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307813A (en) * | 2013-07-05 | 2013-09-18 | 丹佛斯公司 | Heat exchanger and shaping method thereof |
| WO2015009205A1 (en) * | 2013-07-18 | 2015-01-22 | Mnushkin Igor Anatol Evich | Неат-exchange machines |
| RU2567153C1 (en) * | 2014-09-03 | 2015-11-10 | Открытое акционерное общество "Иркутский научно-исследовательский и конструкторский институт химического и нефтяного машиностроения" (ОАО "ИркутскНИИхиммаш") | Heat exchanger |
| CN107120995A (en) * | 2017-05-31 | 2017-09-01 | 山东科技大学 | A kind of shell and tube exchanger with novel baffle |
| CN113035400A (en) * | 2021-03-05 | 2021-06-25 | 哈尔滨工程大学 | Passive high-efficient heat exchanger of sparse membrane formula containment |
| CN115019984A (en) * | 2022-06-14 | 2022-09-06 | 哈尔滨工程大学 | PCS built-in high-efficiency heat exchanger adopting serpentine heat transfer pipe |
| CN115312217A (en) * | 2022-06-14 | 2022-11-08 | 哈尔滨工程大学 | PCS built-in high-efficiency heat exchanger adopting microwave wave-shaped heat transfer pipe |
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|---|---|---|---|---|
| CN2524205Y (en) * | 2001-09-04 | 2002-12-04 | 华东理工大学 | Corrugated steel band baffle heat exchanger |
| CN101206101A (en) * | 2006-12-19 | 2008-06-25 | 北京美联桥科技发展有限公司 | Wave-shaped helical groove heat exchange tube and heat exchanger thereof |
| CN101216264A (en) * | 2008-01-08 | 2008-07-09 | 哈尔滨工程大学 | Needle fin tube and plain tube mixedly arranged self-supporting type heat exchanger |
| CN101551205A (en) * | 2008-12-15 | 2009-10-07 | 郑州大学 | Spiral fin self-supporting heat exchanger |
| US20120111548A1 (en) * | 2010-05-03 | 2012-05-10 | Benteler Automobiltechnik Gmbh | Method of making a heat exchanger tube, and heat exchanger |
-
2013
- 2013-01-14 CN CN2013100128320A patent/CN103017570A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2524205Y (en) * | 2001-09-04 | 2002-12-04 | 华东理工大学 | Corrugated steel band baffle heat exchanger |
| CN101206101A (en) * | 2006-12-19 | 2008-06-25 | 北京美联桥科技发展有限公司 | Wave-shaped helical groove heat exchange tube and heat exchanger thereof |
| CN101216264A (en) * | 2008-01-08 | 2008-07-09 | 哈尔滨工程大学 | Needle fin tube and plain tube mixedly arranged self-supporting type heat exchanger |
| CN101551205A (en) * | 2008-12-15 | 2009-10-07 | 郑州大学 | Spiral fin self-supporting heat exchanger |
| US20120111548A1 (en) * | 2010-05-03 | 2012-05-10 | Benteler Automobiltechnik Gmbh | Method of making a heat exchanger tube, and heat exchanger |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307813A (en) * | 2013-07-05 | 2013-09-18 | 丹佛斯公司 | Heat exchanger and shaping method thereof |
| WO2015009205A1 (en) * | 2013-07-18 | 2015-01-22 | Mnushkin Igor Anatol Evich | Неат-exchange machines |
| RU2567153C1 (en) * | 2014-09-03 | 2015-11-10 | Открытое акционерное общество "Иркутский научно-исследовательский и конструкторский институт химического и нефтяного машиностроения" (ОАО "ИркутскНИИхиммаш") | Heat exchanger |
| CN107120995A (en) * | 2017-05-31 | 2017-09-01 | 山东科技大学 | A kind of shell and tube exchanger with novel baffle |
| CN113035400A (en) * | 2021-03-05 | 2021-06-25 | 哈尔滨工程大学 | Passive high-efficient heat exchanger of sparse membrane formula containment |
| CN115019984A (en) * | 2022-06-14 | 2022-09-06 | 哈尔滨工程大学 | PCS built-in high-efficiency heat exchanger adopting serpentine heat transfer pipe |
| CN115312217A (en) * | 2022-06-14 | 2022-11-08 | 哈尔滨工程大学 | PCS built-in high-efficiency heat exchanger adopting microwave wave-shaped heat transfer pipe |
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Application publication date: 20130403 |