CN202109789U - Heat exchange device using elliptic spiral heat exchange pipes - Google Patents
Heat exchange device using elliptic spiral heat exchange pipes Download PDFInfo
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- CN202109789U CN202109789U CN201120191719XU CN201120191719U CN202109789U CN 202109789 U CN202109789 U CN 202109789U CN 201120191719X U CN201120191719X U CN 201120191719XU CN 201120191719 U CN201120191719 U CN 201120191719U CN 202109789 U CN202109789 U CN 202109789U
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- exchange apparatus
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model discloses a heat exchange device using elliptic spiral heat exchange pipes, at least comprising a pipe bundle body, a pipe plate arranged on the pipe bundle body and a plurality of elliptic spiral heat exchange pipes passing through the pipe plate, wherein the elliptic spiral heat exchange pipe at least comprises a pipe body and the pipe bodies encircle to form a medium channel; the pipe body comprises an elliptic cross section and a spiral outer surface; the medium channel is divided into two side heat exchange areas and a middle heat exchange area by the elliptic cross section; the cross section areas of the side heat exchange pipes are respectively approximately same to the cross section area of the middle heat exchange area. Because the heat exchange device uses the elliptic spiral heat exchange pipes, so as to greatly increase the heat exchange efficiency of the middle heat exchange area, greatly increase the whole heat exchange efficiency of the heat exchange device compared with the prior heat exchange device. The heat exchange device has features of low cost and convenient manufacture and is suitable for various industries such as petroleum, chemical industry, fertilizer, boiler, pharmacy, food, electric power, nuclear energy, environmental protection and heat supply.
Description
Technical field
The utility model relates to mechanical equipment technical field, relates 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 following:
Press GB/T24590-2009 " high-performance heat exchanger is used heat-exchange apparatus " standard, the existing high-efficiency heat exchange tube for heat exchanger of China is divided into and is four major types, is respectively T-slot pipe, bellows, interior ripple male-pipe, interior barrel.Their maximum common ground are: all be to go up at metal parent tube (straight collimator) through cold machining process to make the heat exchanger tube that processes.
As shown in Figure 1, T-slot pipe of the prior art forms intensive helical form T connected in star 11 through cold working on the outer wall of metal parent tube 1.The T-slot pipe can be divided into by version: I type, the T-shaped conduit of pipe outer wall, inside pipe wall smooth surface; The II type, the T-shaped conduit of pipe outer wall, 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 through 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 through cold working.
As shown in Figure 4, of the prior art in barrel, at the inwall of metal parent tube 1 heat exchanger tube through cold working formation groove 11.Interior barrel can be divided into by version: I type, axial notch; The II type, helical groove.
Above-mentioned four big types of 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 with " efficiently " heat exchanger tube.
Above-mentioned these four big types of heat exchanger tubes all pass through cold-formed as parent tube with the seamless metal straight collimator, its cold machining process mainly is that the seamless metal straight collimator is done shape variation.Further, these four big types of heat exchanger tubes all are on the inside and outside wall of seamless metal straight collimator, to carry out cold working, and the processing amplitude is limit by pipe thickness, therefore are 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 receives great limitation at aspects such as specification, length;
2, because the cold working step is arranged, raw-material loss is bigger;
3, because the cold working process is complicated, cause 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, these four big types of heat exchanger tubes have 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, these four big types of heat exchanger tubes all pass through cold working, have residual stress on the body, medium through 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 got into 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.
The utility model content
Because the above-mentioned defective of prior art, the utility model technical problem to be solved provides the heat-exchange apparatus of the oval spiral heat exchange tube of the high application of a kind of heat exchange efficiency.
For realizing above-mentioned purpose, the utility model provides a kind of heat-exchange apparatus of using oval spiral heat exchange tube, comprises tube bundle at least, and said tube bundle is provided with tube sheet, is equipped with many oval spiral heat exchange tubes in the said tube sheet; Said oval spiral heat exchange tube comprises body at least, and body surrounds and forms a medium channel; Said body has oval cross section, and said body has the spiral outer surface; Said oval cross section is divided into two side heat transfer zone and a middle heat transfer zone with said medium channel; The cross-sectional area of two said side heat transfer zone is roughly the same with the cross-sectional area of said middle heat transfer zone respectively.
Preferably, the inner surface of said oval cross section is formed by ellipsoid.
Preferably, said oval cross section is the continuous cold rolling machined surface that said body obtains through press process.
Preferably, the two ends of said oval spiral heat exchange tube are straight length.
Preferably, the heat-exchange apparatus of the oval spiral heat exchange tube of said application is a movable tube sheets heat exchanger.
Preferably, the heat-exchange apparatus of the oval spiral heat exchange tube of said application is vertical tube plate type heat exchanger or horizontal tube-sheet heat exchanger.
Preferably, the heat-exchange apparatus of the oval spiral heat exchange tube of said application is the U-shaped pipe heat exchanger.
Preferably, the heat-exchange apparatus of the oval spiral heat exchange tube of said application is a stuffing-box bivalve pass heat exchanger.
Preferably, the heat-exchange apparatus of the oval spiral heat exchange tube of said application is a kettle type reboiler.
Preferably, the heat-exchange apparatus of the oval spiral heat exchange tube of said application is a stuffing-box shunting heat exchanger.
The heat-exchange apparatus of the oval spiral heat exchange tube of the application of the utility model has improved the heat exchange efficiency of middle heat transfer zone greatly owing to adopted oval spiral heat exchange tube, on the whole heat exchange efficiency of heat-exchange apparatus, will be much higher than existing heat-exchange apparatus.
The utility model 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 utility model has reduced the manufacturing cost of heat-exchange apparatus significantly.
And; The heat-exchange apparatus of the oval spiral heat exchange tube of the application of the utility model is because heat exchanger tube can also have straight length; When making heat-exchange apparatus; The straight length of heat exchanger tube and the good sealing effect of tube sheet are more suitable for the manufacturing technology of existing heat-exchange apparatus, are much higher than existing heat-exchange apparatus in its projected life and service life.
The oval spiral heat exchange tube that the utility model uses is more suitable for traditional hot switching equipment manufacturing process, and it both is connected with tube sheet that expansible pastes, also can weld, but the while also expanded and welded tube joint be used in combination.
The heat-exchange apparatus of the oval spiral heat exchange tube of the application of the utility model; Have simple in structure; 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-slot pipe 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 embodiment 1 of the heat-exchange apparatus of the utility model;
Fig. 6 be embodiment illustrated in fig. 5 in a kind of cross-sectional structure sketch map of oval spiral heat exchange tube;
Fig. 7 is a surface structure sketch map embodiment illustrated in fig. 5;
Fig. 8 is the broken section structural representation of embodiment 2 of the heat-exchange apparatus of the utility model;
Fig. 9 is the broken section structural representation of embodiment 3 of the heat-exchange apparatus of the utility model;
Figure 10 is the broken section structural representation of embodiment 4 of the heat-exchange apparatus of the utility model;
Figure 11 is the broken section structural representation of embodiment 5 of the heat-exchange apparatus of the utility model;
Figure 12 is the broken section structural representation of embodiment 6 of the heat-exchange apparatus of the utility model.
The specific embodiment
Below will combine accompanying drawing that the technique effect of design, concrete structure and the generation of the utility model is done
Further specify, with purpose, characteristic and the effect of understanding the utility model fully.
Embodiment 1:
As shown in Figure 5, the heat-exchange apparatus of the oval spiral heat exchange tube of the application of present embodiment 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 oval spiral heat exchange tubes 1 in the tube sheet 2.
Like Fig. 6, shown in Figure 7; The oval spiral heat exchange tube 1 of the utility model is one to have the metal welded tube of certain-length; Like 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 inner surface of body 2 is oval smooth surface, and outer surface is a spirality.
The inside of body 2 forms the medium channel of heat transferring medium circulation.
Among this paper, described " roughly the same " not strict identical.As long as the cross-sectional area of heat transfer zone 32 is not more than 3 times of cross-sectional area of side heat transfer zone 31 in the middle of making, or be not less than 1/3 the getting final product of cross-sectional area of side heat transfer zone 31.
Particularly, the body 2 in the present embodiment is the continuous cold rolling machined surfaces that adopt press process technology to form by a circular metal welded tube, and inside is oval.
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.
See from shape of cross section; Present embodiment middle tube body 2 is when doing heat exchange; The heat exchange efficiency of two side heat transfer zone 31 and a middle heat transfer zone 32 is all than higher; Heat transferring medium particularly in the heat transfer zone 32 also participates in the heat transfer process fully, has improved the heat exchange efficiency of oval spiral heat exchange tube 1 widely.
Like the body in the present embodiment 2, adopt the beneficial effect of oval cross section to be, not only can improve the heat exchange area of oval spiral heat exchange tube 1 significantly, improved the heat exchange efficiency of oval spiral heat exchange tube 1; Can also strengthen the flow and the flow velocity of heat transferring mediums in the middle heat transfer zone 32, also improve the heat exchange efficiency of oval spiral heat exchange tube 1.Further, also improve the stress of oval spiral heat exchange tube 1 under the heat transferring medium effect, strengthened the rigidity of body 2.
Oval spiral heat exchange tube in the utility model is not also owing to have cold working after the tubulation moulding, so internal structure stress eliminates basically, and anti-fouling tendency, corrosion resistance are better.
The utility model also has simple in structure, and cost is low, makes more beneficial effect such as facility.
Heat exchanger tube of the prior art has particular external surface shape (such as spiral, T groove, ripple) mostly, and when making heat exchange equipment, being connected of heat exchanger tube of the prior art and tube sheet must the increase linkage section; The gap is bigger between heat exchanger tube and the deflection plate, and stationarity is poor.And the oval spiral heat exchange tube in the utility model has smooth outer surface, is more suitable for the manufacturing technology of traditional heat exchangers, is much higher than existing four big types of heat exchanger tubes in its projected life and service life.
According to client's needs, the entire length of the oval spiral heat exchange tube in the utility model can be chosen between tens of rice at 0 meter.Certainly, if the reasonable disposition heat-treatment furnace, the entire length of the oval spiral heat exchange tube in the utility model can also be in random length, and is not subject to the specification of cold working equipment.
The heat-exchange apparatus of the utility model can also adopt the oval spiral heat exchange tube that has straight length, has corresponding beneficial effect.
Embodiment 2:
As shown in Figure 8, the heat-exchange apparatus of the oval spiral heat exchange tube of the application of present embodiment is the vertical tube plate type heat exchanger, mainly comprises tube bundle 3, tube sheet 2, and adopt the oval spiral heat exchange tube 1 in the utility model.The heat-exchange apparatus of the utility model also can be horizontal tube-sheet heat exchanger in other embodiments.
Embodiment 3:
As shown in Figure 9, the heat-exchange apparatus of the oval spiral heat exchange tube of the application of present embodiment is the U-shaped pipe heat exchanger, mainly comprises tube bundle 3, and tube sheet 2 adopts the oval spiral heat exchange tube 1 in the utility model.
Embodiment 4:
Shown in figure 10, the heat-exchange apparatus of the oval spiral heat exchange tube of the application of present embodiment is a stuffing-box bivalve pass heat exchanger, mainly comprises tube bundle 3, and tube sheet 2 adopts the oval spiral heat exchange tube 1 in the utility model.
Embodiment 5:
Shown in figure 11, the heat-exchange apparatus of the oval spiral heat exchange tube of the application of present embodiment is a kettle type reboiler, mainly comprises tube bundle 3, and tube sheet 2 adopts the oval spiral heat exchange tube 1 in the utility model.
Embodiment 6:
Shown in figure 12, the heat-exchange apparatus of the oval spiral heat exchange tube of the application of present embodiment is a stuffing-box shunting heat exchanger, mainly comprises tube bundle 3, and tube sheet 2 adopts the oval spiral heat exchange tube 1 in the utility model.
A kind of heat transferring medium that only circulates in the heat-exchange apparatus of the oval spiral heat exchange tube of above-mentioned various application of the utility model, with other outer Medium Exchange heats of heat-exchange apparatus.
The oval spiral heat exchange tube that the utility model uses is compared with other structure heat exchanger tubes of equivalent diameter in the prior art; Though cross-sectional area is identical; But its heat exchange area increases several times, has improved the heat exchange efficiency in the heat exchange zone greatly, has further reduced the energy consumption of heat-exchange apparatus.
The heat-exchange apparatus of the oval spiral heat exchange tube of the application of the utility model is owing to adopted oval spiral heat exchange tube; Compare with the heat-exchange apparatus that screwed pipe (special type pipe such as integral low-finned tube) that former Machinery Ministry and China Petroleum Chemicals Corporation are recommended constitutes, have following some advantage:
The internal surface area of the oval spiral heat exchange tube that the utility model uses is than more than the big several times of screwed pipe, and 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 oval spiral heat exchange tube that the utility model uses is compared with screwed pipe of the prior art, need not to increase linkage section, and good rigidly, the poling of heat exchanger tube are easy, easily manufactured, and these factors have been optimized the performance of the heat-exchange apparatus of the utility model.
The oval spiral heat exchange tube that the utility model uses is compared with screwed pipe of the prior art; Better with the suitability of deflection plate; Its pipe thickness is even; The outside dimension standard, effective with the clearance control of deflection plate, tube sheet, the puzzlement that the heat-exchange apparatus long-time running of the utility model is not vibrated.
The oval spiral heat exchange tube that the utility model uses, its smooth surface, less scaling, the anti-tartar performance is good, thus the heat-exchange apparatus of the utility model also have less scaling, the characteristics that the anti-tartar performance is good.
The oval spiral heat exchange tube that the utility model uses, because of the residual stress after the no cold working, its corrosion resistance is better than screwed pipe of the prior art greatly, so the corrosion resistance of the heat-exchange apparatus of the utility model 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 oval spiral heat exchange tube that the utility model 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 like 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.Occasion that and for example vibration equipment is bigger or the like.Therefore the heat-exchange apparatus of the utility model has widely used beneficial effect.
In sum, the just several kinds of preferred embodiment of the utility model described in this specification, above embodiment is only unrestricted in order to the technical scheme of explanation the utility model.All technical staff in the art according to the design of the utility model on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be within the claim protection domain of the utility model.
Claims (10)
1. a heat-exchange apparatus of using oval spiral heat exchange tube comprises tube bundle at least, and said tube bundle is provided with tube sheet, it is characterized in that: be equipped with many oval spiral heat exchange tubes in the said tube sheet; Said oval spiral heat exchange tube comprises body at least, and body surrounds and forms a medium channel; Said body has oval cross section, and said body has the spiral outer surface; Said oval cross section is divided into two side heat transfer zone and a middle heat transfer zone with said medium channel; The cross-sectional area of two said side heat transfer zone is roughly the same with the cross-sectional area of said middle heat transfer zone respectively.
2. heat-exchange apparatus as claimed in claim 1 is characterized in that: the inner surface of said oval cross section is formed by ellipsoid.
3. heat-exchange apparatus as claimed in claim 2 is characterized in that: said oval cross section is the continuous cold rolling machined surface that said body obtains through press process.
4. like the arbitrary described heat-exchange apparatus of claim 1 to 3, it is characterized in that: the two ends of said oval spiral heat exchange tube are straight length.
5. heat-exchange apparatus as claimed in claim 1 is characterized in that: said heat-exchange apparatus is a movable tube sheets heat exchanger.
6. heat-exchange apparatus as claimed in claim 1 is characterized in that: said 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: said heat-exchange apparatus is the U-shaped pipe heat exchanger.
8. heat-exchange apparatus as claimed in claim 1 is characterized in that: said heat-exchange apparatus is a stuffing-box bivalve pass heat exchanger.
9. heat-exchange apparatus as claimed in claim 1 is characterized in that: said heat-exchange apparatus is a kettle type reboiler.
10. heat-exchange apparatus as claimed in claim 1 is characterized in that: said heat-exchange apparatus is a stuffing-box shunting heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120191719XU CN202109789U (en) | 2011-06-08 | 2011-06-08 | Heat exchange device using elliptic spiral heat exchange pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120191719XU CN202109789U (en) | 2011-06-08 | 2011-06-08 | Heat exchange device using elliptic spiral heat exchange pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202109789U true CN202109789U (en) | 2012-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120191719XU Expired - Fee Related CN202109789U (en) | 2011-06-08 | 2011-06-08 | Heat exchange device using elliptic spiral heat exchange pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202109789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297627A (en) * | 2011-06-08 | 2011-12-28 | 上海科米钢管有限公司 | Heat exchange device applying elliptical spiral heat exchange tubes |
| US10539321B2 (en) | 2013-11-29 | 2020-01-21 | No Eul Kim | Plastic hot water boiler |
-
2011
- 2011-06-08 CN CN201120191719XU patent/CN202109789U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297627A (en) * | 2011-06-08 | 2011-12-28 | 上海科米钢管有限公司 | Heat exchange device applying elliptical spiral heat exchange tubes |
| US10539321B2 (en) | 2013-11-29 | 2020-01-21 | No Eul Kim | Plastic hot water boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Kemi Steel Tube Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20130608 |