CN102095327A - Heat exchange equipment using irregular-shaped heat exchange tubes - Google Patents
Heat exchange equipment using irregular-shaped heat exchange tubes Download PDFInfo
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- CN102095327A CN102095327A CN2010106192948A CN201010619294A CN102095327A CN 102095327 A CN102095327 A CN 102095327A CN 2010106192948 A CN2010106192948 A CN 2010106192948A CN 201010619294 A CN201010619294 A CN 201010619294A CN 102095327 A CN102095327 A CN 102095327A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses heat exchange equipment using irregular-shaped heat exchange tubes, which at least comprises a tube bundle body, wherein the tube bundle body is provided with a tube sheet; and a plurality of irregular-shaped heat exchange tubes are arranged in the tube sheet in a penetrating way. Each irregular-shaped heat exchange tube at least comprises a tube body and a medium channel enclosed by the tube body; the tube body is provided with an irregular-shaped tube wall which divides the medium channel into a plurality of peripheral heat exchange areas and a central heat exchange area; and the cross sectional areas of the plurality of peripheral heat exchange areas are approximately same as that of the central heat exchange area. By adopting the irregular-shaped heat exchange tubes, the heat exchange equipment has the advantages that the heat exchange efficiency of the central heat exchange area is greatly improved, and the overall heat exchange efficiency of the heat exchange equipment is greatly higher than that of the traditional heat exchange equipment. The heat exchange equipment also has the beneficial effects of low cost, is convenient to manufacture, and is applicable to industries of petroleum, chemical industry, chemical fertilizers, boilers, pharmacy, foods, electric power, nuclear power, environmental protection, heat supply and the like.
Description
Technical field
The present invention relates to mechanical equipment technical field, relate in particular to a kind of heat-exchange apparatus that is used for heat exchange.
Background technology
Heat-exchange apparatus is the widely used a kind of visual plants of numerous industries, also is one of key equipment of saving energy and reduce the cost.As everyone knows, the efficient of heat-exchange apparatus and energy-conservation core are heat exchanger tube.
At present, what use amount was maximum in the world is the seamless pipe of various different materials, and still, its usefulness has performed to ultimate attainment, so the appearance of high-performance heat exchanger with shape tube arranged, has improved the efficient of all kinds of heat transmission equipments greatly, and its main feature is as follows:
Press GB/T24590-2009 " special tube for high-efficiency heat exchanger " standard, the existing high-efficiency heat exchange tube for heat exchanger of China is divided into and is four major types, is respectively T type barrel, bellows, interior ripple male-pipe, interior barrel.The common ground of their maximums is: all be to go up at metal parent tube (straight collimator) by cold machining process to make the heat exchanger tube that processes.
As shown in Figure 1, T type barrel of the prior art forms intensive helical form T type groove 11 by cold working on the outer wall of metal parent tube 1.T type barrel can be divided into by version: the I type, and the pipe outer wall is T type conduit, inside pipe wall smooth surface; The II type, the pipe outer wall is T type conduit, and the inside pipe wall surface is corrugated.
As shown in Figure 2, bellows of the prior art forms the heat exchanger tube that the inside and outside surface of pipe all is corrugated 11 by cold working on metal parent tube 1.
As shown in Figure 3, of the prior art in the ripple male-pipe, on metal parent tube 1, form the pipe outer wall and be the heat exchanger tube that screw thread 11, inside pipe wall are corrugated 12 by cold working.
As shown in Figure 4, of the prior art in barrel, form the heat exchanger tube of groove 11 by cold working at the inwall of metal parent tube 1.Interior barrel can be divided into by version: I type, axial notch; The II type, helical groove.
Above-mentioned four big class heat exchanger tubes are compared with the metal straight collimator that directly is used as heat exchanger tube without cold working, because on the metal parent tube, have the formed flute profile of cold working, waveform etc., strengthened heat-transfer effect, therefore the heat exchange area and the heat exchange efficiency of heat exchanger tube have been improved effectively, so be called as heat exchanger " efficiently " heat exchanger tube.
Above-mentioned this four big class heat exchanger tube all passes through cold-formed as parent tube with the seamless metal straight collimator, its cold machining process mainly is the variation of the seamless metal straight collimator being done shape.Further, this four big class heat exchanger tube all is to carry out cold working on the inside and outside wall of seamless metal straight collimator, and the processing amplitude is limit by pipe thickness, therefore is difficult to improve significantly heat exchange area again.
Heat exchanger tube of the prior art is when doing heat exchange, and heat transferring mediums such as water, oil, gas circulate in heat exchanger tube, by means of the technical purpose of heat-shift between other media that the heat exchange tube wall is realized and heat exchanger tube is outer.In heat exchanging process, more abundant near the heat exchange that heat transferring medium carried out in heat exchanger tube tube wall zone, heat exchange efficiency is higher; And away from the heat exchanger tube tube wall, be positioned at the heat exchange of heat transferring medium of heat exchanger tube central area and insufficient, though above-mentioned heat exchanger tube therefore of the prior art improves through certain, whole heat exchange efficiency is still lower.
And, some tangible deficiency below heat exchanger tube of the prior art also exists in production, use:
1, be limited by the specification limits of cold working equipment, the heat exchanger tube finished product all is subjected to great limitation at aspects such as specification, length;
2, because the cold working step is arranged, raw-material loss is bigger;
3, because cold working process complexity causes the machining accuracy of product uneven;
4, the method for inspection of cold machining process and measuring means are difficult to guarantee end product quality;
5, limited by processing technology, tubulation efficient is not high;
6, this four big class heat exchanger tube has special external form mostly, and the making of giving heat exchange equipment brings many inconvenience such as the disposal to the deflection plate of bellows, outer barrel;
7, this four big class heat exchanger tube all passes through cold working, has residual stress on the body, medium by the time can form turbulent flow, strengthened the local corrosion of heat exchanger tube, so caused certain negative effect the service life of heat exchanging device equipment.
Heat-exchange apparatus of the prior art has entered a technical bottleneck for above-mentioned reasons, and heat exchange area, heat exchange efficiency are difficult to increase substantially again, have restricted the development of heat-exchange apparatus, are difficult to satisfy the demand in market.
Therefore, those skilled in the art is devoted to develop the high heat-exchange apparatus of a kind of heat exchange efficiency always.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides the heat-exchange apparatus of the high application abnormity heat exchanger tube of a kind of heat exchange efficiency.
For achieving the above object, the invention provides a kind of heat-exchange apparatus of using special-shaped heat exchanger tube, comprise tube bundle at least, described tube bundle is provided with tube sheet, is equipped with many special-shaped heat exchanger tubes in the described tube sheet; Described special-shaped heat exchanger tube comprises body at least, and surrounds the medium channel that forms by described body; Described body has special-shaped tube wall, and described special-shaped tube wall is divided into a plurality of peripheral heat transfer zone and a center heat transfer zone with described medium channel; The cross-sectional area of a plurality of described peripheral heat transfer zone is roughly the same with the cross-sectional area of described center heat transfer zone respectively.
Preferably, described special-shaped tube wall is connected to form by a plurality of curved surfaces.
Preferably, described a plurality of curved surfaces is the continuous cold rolling machined surface that described body obtains through press process.
Preferably, described outer tube and/or described heat exchanger components are the metal welded tube.
Preferably, the heat-exchange apparatus of the special-shaped heat exchanger tube of described application is a movable tube sheets heat exchanger.
Preferably, the heat-exchange apparatus of the special-shaped heat exchanger tube of described application is vertical tube plate type heat exchanger or horizontal tube-sheet heat exchanger.
Preferably, the heat-exchange apparatus of the special-shaped heat exchanger tube of described application is a U type pipe heat exchanger.
Preferably, the heat-exchange apparatus of the special-shaped heat exchanger tube of described application is a stuffing-box bivalve pass heat exchanger.
Preferably, the heat-exchange apparatus of the special-shaped heat exchanger tube of described application is a kettle type reboiler.
Preferably, the heat-exchange apparatus of the special-shaped heat exchanger tube of described application is a stuffing-box shunting heat exchanger.
The heat-exchange apparatus of the special-shaped heat exchanger tube of application of the present invention has improved the heat exchange efficiency of center heat transfer zone greatly owing to adopted special-shaped heat exchanger tube, will be much higher than existing heat-exchange apparatus on the whole heat exchange efficiency of heat-exchange apparatus.
The present invention also adopts the raw material of welded tube as core component----heat exchanger tube first, and the cost of welded tube is lower at least by about 20% than the cost that is used as the raw-material seamless pipe of heat exchanger tube in the prior art, thereby the present invention has reduced the manufacturing cost of heat-exchange apparatus significantly.
The heat-exchange apparatus of the special-shaped heat exchanger tube of application of the present invention has simple in structurely, and cost is low, makes beneficial effects such as facility, is applicable in the multiple industries such as oil, chemical industry, chemical fertilizer, boiler, pharmacy, food, electric power, nuclear energy, environmental protection, heat supply.
Description of drawings
Fig. 1 is the structural representation of a kind of T type barrel in the prior art;
Fig. 2 is the structural representation of a kind of bellows in the prior art;
Fig. 3 is the structural representation of a kind of interior ripple male-pipe in the prior art;
Fig. 4 is the structural representation of a kind of interior barrel in the prior art;
Fig. 5 is the broken section structural representation of the embodiment 1 of heat-exchange apparatus of the present invention;
Fig. 6 be embodiment illustrated in fig. 5 in a kind of cross-sectional structure schematic diagram of special-shaped heat exchanger tube;
Fig. 7 be embodiment illustrated in fig. 5 in the cross-sectional structure schematic diagram of another kind of special-shaped heat exchanger tube;
Fig. 8 is the broken section structural representation of the embodiment 2 of heat-exchange apparatus of the present invention;
Fig. 9 is the broken section structural representation of the embodiment 3 of heat-exchange apparatus of the present invention;
Figure 10 is the broken section structural representation of the embodiment 4 of heat-exchange apparatus of the present invention;
Figure 11 is the broken section structural representation of the embodiment 5 of heat-exchange apparatus of the present invention;
Figure 12 is the broken section structural representation of the embodiment 6 of heat-exchange apparatus of the present invention.
The specific embodiment
Be described further below with reference to the technique effect of accompanying drawing, to understand purpose of the present invention, feature and effect fully design of the present invention, concrete structure and generation.
Embodiment 1:
As shown in Figure 5, the heat-exchange apparatus of the application of present embodiment abnormity heat exchanger tube is a movable tube sheets heat exchanger, mainly comprises tube bundle 3, and tube bundle 3 is provided with tube sheet 2, is equipped with many special-shaped heat exchanger tubes 1 in the tube sheet 2.
As shown in Figure 6, special-shaped heat exchanger tube 1 of the present invention is one to have the metal welded tube of certain-length, as austenitic stainless steel welded tube, carbon steel welded tube, titanium or titanium alloy welded tube, nickel and nickel alloy welded tube, or austenite-ferrite dual phase steel welded tube etc.
The inside and outside surface of body 2 is smooth surface, is connected to form by a plurality of curved surfaces.
The inside of body 2 forms the medium channel of heat transferring medium circulation.
Herein, described " roughly the same " not strict identical.As long as make the cross-sectional area of center heat transfer zone 32 be not more than 3 times of cross-sectional area of peripheral heat transfer zone 31, or be not less than 1/3 the getting final product of cross-sectional area of peripheral heat transfer zone 31.
Particularly, body 2 in the present embodiment is to adopt press process technology to form by the metal welded tube of a circle, 4 curved surfaces are the continuous cold rolling machined surface that body 2 obtains through press process, corner by 4 circular arcs between 4 continuous curved surfaces connects, and each curved surfaces is a cold rolling machined surface.
The corner of circular arc will have certain radian, and according to the difference of body 2 diameters, preferably adopting knuckle radius is the 2-10 millimeter.Avoided the existence of sharp comer like this.
From shape of cross section, present embodiment middle tube body 2 is connected to form by four curved surfaces, special-shaped heat exchanger tube 1 like this is when doing heat exchange, the heat exchange efficiency of four peripheral heat transfer zone 31 and a center heat transfer zone 32 is all than higher, particularly the heat transferring medium in the center heat transfer zone 32 also participates in the heat transfer process fully, has improved the heat exchange efficiency of special-shaped heat exchanger tube 1 widely.
As the body in the present embodiment 2, the beneficial effect of concaved circular cambered surface is in adopting, and not only can improve the heat exchange area of special-shaped heat exchanger tube 1 significantly, has improved the heat exchange efficiency of special-shaped heat exchanger tube 1; Can also strengthen the flow and the flow velocity of heat transferring medium in the center heat transfer zone 32, also improve the heat exchange efficiency of special-shaped heat exchanger tube 1.Further, also improve the stress of special-shaped heat exchanger tube 1 under the heat transferring medium effect, strengthened the rigidity of body 2.
Special-shaped heat exchanger tube among the present invention is not also owing to have cold working after the tubulation moulding, so internal structure stress eliminates substantially, and anti-fouling tendency, corrosion resistance are better.
The present invention also has simple in structure, and cost is low, makes more beneficial effect such as facility.
According to client's needs, the entire length of the special-shaped heat exchanger tube among the present invention can be chosen between ten several meters at 0 meter.Certainly, if the reasonable disposition heat-treatment furnace, the entire length of the special-shaped heat exchanger tube among the present invention can also be in random length, and is not subject to the specification of cold working equipment.
As a kind of replacement, in the present embodiment, also can adopt special-shaped heat exchanger tube as shown in Figure 7.The special-shaped heat exchanger tube 1 of present embodiment is basic identical with the structure of the foregoing description, all comprises a body 2, and institute's difference is, the cross section of body 2 is a polygon and the combining of arc, and has formed 4 peripheral heat transfer zone 31 and 1 center heat transfer zone 32 equally.
Present embodiment has and the essentially identical technique effect of the foregoing description.Heat-exchange apparatus of the present invention has had corresponding beneficial effect owing to adopted the special-shaped heat exchanger tube of said structure.
Embodiment 2:
As shown in Figure 8, the heat-exchange apparatus of the application of present embodiment abnormity heat exchanger tube is the vertical tube plate type heat exchanger, mainly comprises tube bundle 3, tube sheet 2, and the special-shaped heat exchanger tube 1 among employing the present invention.Heat-exchange apparatus of the present invention also can be horizontal tube-sheet heat exchanger in other embodiments.
Embodiment 3:
As shown in Figure 9, the heat-exchange apparatus of the application of present embodiment abnormity heat exchanger tube is a U type pipe heat exchanger, mainly comprises tube bundle 3, and tube sheet 2 adopts the special-shaped heat exchanger tube 1 among the present invention.
Embodiment 4:
As shown in figure 10, the heat-exchange apparatus of the application of present embodiment abnormity heat exchanger tube is a stuffing-box bivalve pass heat exchanger, mainly comprises tube bundle 3, and tube sheet 2 adopts the special-shaped heat exchanger tube 1 among the present invention.
Embodiment 5:
As shown in figure 11, the heat-exchange apparatus of the application of present embodiment abnormity heat exchanger tube is a kettle type reboiler, mainly comprises tube bundle 3, and tube sheet 2 adopts the special-shaped heat exchanger tube 1 among the present invention.
Embodiment 6:
As shown in figure 12, the heat-exchange apparatus of the application of present embodiment abnormity heat exchanger tube is a stuffing-box shunting heat exchanger, mainly comprises tube bundle 3, and tube sheet 2 adopts the special-shaped heat exchanger tube 1 among the present invention.
A kind of heat transferring medium that only circulates in the heat-exchange apparatus of the special-shaped heat exchanger tube of above-mentioned various application of the present invention, with other outer Medium Exchange heats of heat-exchange apparatus.
The special-shaped heat exchanger tube that the present invention uses is compared with other structure heat exchanger tubes of equivalent diameter in the prior art, and its heat exchange area increases several times.
The heat-exchange apparatus of the special-shaped heat exchanger tube of application of the present invention has been owing to adopted special-shaped heat exchanger tube, compares with the heat-exchange apparatus that former Machinery Ministry and screwed pipe (special type pipe such as integral low-finned tube) that China Petroleum Chemicals Corporation is recommended constitute, and has following some advantage:
More than the big several times of surface area ratio screwed pipe of the special-shaped heat exchanger tube that the present invention uses, overall heat-transfer coefficient can reach the multiple level and improve.Therefore, when the structural design of heat-exchange apparatus, can reduce heat transfer area, reach and reduce, reduce the effect of heat-exchange apparatus cost with pipe quantity.
The special-shaped heat exchanger tube that the present invention uses, its smooth surface, less scaling, the anti-tartar performance is good, therefore heat-exchange apparatus of the present invention also have less scaling, the characteristics that the anti-tartar performance is good.
The special-shaped heat exchanger tube that the present invention uses, because of the residual stress after the no cold working, its corrosion resistance is better than screwed pipe of the prior art greatly, and therefore the corrosion resistance of heat-exchange apparatus of the present invention is greatly improved.Particularly, can not use existing screwed pipe because of there being rolling stress in the application scenario that stress corrosion is arranged.
The special-shaped heat exchanger tube that the present invention uses, can be widely used in all kinds, various forms of heat-exchange apparatus, and screwed pipe of the prior art is in some occasion, its application is restricted, occasion as the heat transfer of enhanced tube condensed exterior, screwed pipe just can not be used for vertical (type) condenser, otherwise, just do not have the effect of enforcing condensation.Therefore heat-exchange apparatus of the present invention has widely used beneficial effect.
In sum, described in this specification is several preferred embodiment of the present invention, and above embodiment is only unrestricted in order to technical scheme of the present invention to be described.All technical staff in the art all should be within claim protection domain of the present invention under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. a heat-exchange apparatus of using special-shaped heat exchanger tube comprises tube bundle at least, and described tube bundle is provided with tube sheet, it is characterized in that: be equipped with many special-shaped heat exchanger tubes in the described tube sheet; Described special-shaped heat exchanger tube comprises body at least, and surrounds the medium channel that forms by described body; Described body has special-shaped tube wall, and described special-shaped tube wall is divided into a plurality of peripheral heat transfer zone and a center heat transfer zone with described medium channel; The cross-sectional area of a plurality of described peripheral heat transfer zone is roughly the same with the cross-sectional area of described center heat transfer zone respectively.
2. heat-exchange apparatus as claimed in claim 1 is characterized in that: described special-shaped tube wall is connected to form by a plurality of curved surfaces.
3. heat-exchange apparatus as claimed in claim 2 is characterized in that: described a plurality of curved surfaces are the continuous cold rolling machined surface that described body obtains through press process.
4. as the arbitrary described heat-exchange apparatus of claim 1 to 3, it is characterized in that: described outer tube and/or described heat exchanger components are the metal welded tube.
5. heat-exchange apparatus as claimed in claim 1 is characterized in that: described heat-exchange apparatus is a movable tube sheets heat exchanger.
6. heat-exchange apparatus as claimed in claim 1 is characterized in that: described heat-exchange apparatus is vertical tube plate type heat exchanger or horizontal tube-sheet heat exchanger.
7. heat-exchange apparatus as claimed in claim 1 is characterized in that: described heat-exchange apparatus is a U type pipe heat exchanger.
8. heat-exchange apparatus as claimed in claim 1 is characterized in that: described heat-exchange apparatus is a stuffing-box bivalve pass heat exchanger.
9. heat-exchange apparatus as claimed in claim 1 is characterized in that: described heat-exchange apparatus is a kettle type reboiler.
10. heat-exchange apparatus as claimed in claim 1 is characterized in that: described heat-exchange apparatus is a stuffing-box shunting heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106192948A CN102095327A (en) | 2010-12-31 | 2010-12-31 | Heat exchange equipment using irregular-shaped heat exchange tubes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106192948A CN102095327A (en) | 2010-12-31 | 2010-12-31 | Heat exchange equipment using irregular-shaped heat exchange tubes |
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| Publication Number | Publication Date |
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| CN102095327A true CN102095327A (en) | 2011-06-15 |
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| CN2010106192948A Pending CN102095327A (en) | 2010-12-31 | 2010-12-31 | Heat exchange equipment using irregular-shaped heat exchange tubes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331201A (en) * | 2011-07-11 | 2012-01-25 | 上海科米钢管有限公司 | Heat exchanger provided with elliptic flat spiral heat exchange tubes |
| CN104110987A (en) * | 2014-08-01 | 2014-10-22 | 兰州交通大学 | Streamline iso-amplitude parabolic wavy fin for round tube fin heat exchanger |
| CN112902714A (en) * | 2021-02-05 | 2021-06-04 | 南通大学 | Rotary drum type liquid-liquid heat exchanger |
-
2010
- 2010-12-31 CN CN2010106192948A patent/CN102095327A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331201A (en) * | 2011-07-11 | 2012-01-25 | 上海科米钢管有限公司 | Heat exchanger provided with elliptic flat spiral heat exchange tubes |
| CN104110987A (en) * | 2014-08-01 | 2014-10-22 | 兰州交通大学 | Streamline iso-amplitude parabolic wavy fin for round tube fin heat exchanger |
| CN104110987B (en) * | 2014-08-01 | 2016-01-06 | 兰州交通大学 | Circular pipe pipe fin heat exchanger is streamlined waits wave amplitude parabolical corrugated fin |
| CN112902714A (en) * | 2021-02-05 | 2021-06-04 | 南通大学 | Rotary drum type liquid-liquid heat exchanger |
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Addressee: Lu Xiufeng Document name: Notification that Application Deemed to be Withdrawn |
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Application publication date: 20110615 |