CN202216587U - Heat exchanger adopting oval flat spiral heat exchange tube - Google Patents
Heat exchanger adopting oval flat spiral heat exchange tube Download PDFInfo
- Publication number
- CN202216587U CN202216587U CN 201120241631 CN201120241631U CN202216587U CN 202216587 U CN202216587 U CN 202216587U CN 201120241631 CN201120241631 CN 201120241631 CN 201120241631 U CN201120241631 U CN 201120241631U CN 202216587 U CN202216587 U CN 202216587U
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- Prior art keywords
- heat exchanger
- heat exchange
- flat spiral
- tube
- oval flat
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Abstract
The utility model discloses a heat exchanger adopting oval flat spiral heat exchange tubes, which at least comprises a shell body and a tube plate. A plurality of oval flat spiral heat exchange tubes penetrate through the tube plate. Each oval flat spiral heat exchange tube at least comprises a tube body. The tube body is formed by a special-shaped tube section located in the middle, a first straight tube section and a second straight tube section, and the first straight tube section and the second straight tube section are respectively located at both ends of the special-shaped tube section. The special-shaped tube section is provided with an oval flat cross section, and a long axis and a short axis of the oval shape are jointly provided with a rotating included angle corresponding to an axial line of the tube body. The heat exchanger greatly improves heat exchange efficiency due to the adoption of the oval flat spiral heat exchange tubes, has the advantages of being low in cost, convenient to manufacture and the like, and is suitable for many industries such as oil, chemical engineering, chemical fertilizer, boilers, pharmacy, food, electric power, nuclear power, environment protection and heat supply.
Description
Technical field
The utility model relates to the heat-exchange apparatus technical field, relates in particular to a kind of heat exchanger.
Background technology
The application of heat exchanger in industrial, civilian is very universal.Along with the develop rapidly of power-saving technology, the kind of heat exchanger is more and more, is applicable to that its structure of heat exchanger and the pattern of different medium, different operating mode, different temperatures and different pressures is also inequality.The kind of heat exchanger is brought in constant renewal in exploitation novel, high-performance heat exchanger.The mode classification of heat exchanger is varied, can will usually classify according to differences such as heat exchange principle, heat transfer kind, heat transfer elements.
Shown in Figure 1 is a kind of fixed tube-sheet exchanger in the prior art, comprises tube sheet 1, heat exchanger tube 3, housing 5 and bobbin carriage 6 etc.
Shown in Figure 2 is a kind of compensation type heat-exchanger in the prior art, comprises housing 1, front tube sheet 3, back tube sheet 3, tube bank 6 and heat exchanger tube 8 etc.
Shown in Figure 3 is a kind of U-shaped pipe heat exchanger in the prior art, comprises housing 1, tube sheet 2, bobbin carriage 4, is provided with U-shaped heat exchanger tube 13 in the housing 1, and the two ends of U-shaped heat exchanger tube 13 are run through tube sheet 2 and are communicated with bobbin carriage 4.
Shown in Figure 4 is a kind of double pipe heat exchanger in the prior art, pipe 1, interior pipe pipe joint 2, interior pipe tube sheet 3, outer tube tube sheet 5, flange 6, housing 7 etc. in comprising.
Though heat exchanger of the prior art is of a great variety, all be to have used existing various heat exchanger tube.As everyone knows, heat exchanger tube is the critical component of heat transmission equipment, and the heat exchange efficiency of heat exchanger tube directly has influence on the operating efficiency of heat transmission equipment.Efficiency of heat exchanger and energy-conservation core are heat exchanger tube.
Therefore, those skilled in the art is devoted to develop the heat exchanger that a kind of heat exchange efficiency is high, manufacturing is novel easily always.
The utility model content
Because the above-mentioned defective of prior art, the utility model technical problem to be solved provides the heat exchanger that a kind of heat exchange efficiency is high, oval flat spiral heat exchange tube is used in manufacturing easily.
For realizing above-mentioned purpose, the utility model provides a kind of heat exchanger of using oval flat spiral heat exchange tube, comprises housing and tube sheet at least, is equipped with the many flat spiral heat exchange tubes of ellipse in the said tube sheet; The flat spiral heat exchange tube of said ellipse comprises body at least, and said body is made up of special-shaped pipeline section that is positioned at the middle part and first straight length, the second straight length one that lay respectively at said special-shaped pipeline section two ends; Said special-shaped pipeline section has oval flat cross section, and this long axis of ellipse has a rotation angle with the axis of the said relatively body of minor axis.
Preferably, the length of said major axis is greater than the diameter of said body.
Preferably, said first straight length and said second straight length be not for isometric or isometric.
Preferably, said body is a welded tube.
Preferably, said body is seamless straight collimator.
Preferably, said rotation angle is clockwise or counterclockwise.
Preferably, said rotation angle is 1 °-75 °.
Preferably, said body is a U-shaped.
Preferably, said body is a S shape.
Preferably, said heat exchanger is shell-and-tube heat exchanger, submerged coil heat exchanger, spray-type heat exchanger.
The heat exchanger of the utility model has improved the heat exchange efficiency of heat exchanger tube owing to adopted oval flat spiral heat exchange tube, on the whole heat exchange efficiency of heat exchanger, will be much higher than existing heat exchanger.
The utility model especially is suitable for the raw material of welded tube as heat exchanger tube; And the cost of welded tube is lower at least by about 20% than the cost that is used as the raw-material seamless straight collimator of heat exchanger tube in the prior art, thereby the utility model has reduced the manufacturing cost of heat exchanger significantly.
And; The heat exchanger of the oval flat spiral heat exchange tube of the application of the utility model; Because oval flat spiral heat exchange tube can also have straight length, when making heat exchanger, the straight length of heat exchanger tube and the good sealing effect of tube sheet; Be more suitable for the manufacturing technology of existing heat exchanger, be much higher than existing heat exchanger in its projected life and service life.
Further; Because first straight length and second straight length of the oval flat spiral heat exchange tube of the utility model can be not isometric, when making heat exchanger, borrow is installed easily like this; Greatly reduce limited space property, improved the utilization rate of the device space.
The oval flat spiral heat exchange tube that the utility model uses is more suitable for the manufacturing process of traditional heat exchangers, 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 oval flat spiral heat exchange tube that the utility model adopts, body can also be U-shaped or S shape, has greatly expanded application, goes for the heat exchanger of various kinds, model, specification.
The heat exchanger of the oval flat spiral heat exchange tube of the application of the utility model; Can be applied to existing various shell-and-tube heat exchanger, submerged coil heat exchanger, spray-type heat exchanger; And various movable tube sheets heat exchangers, vertical tube plate type heat exchanger or horizontal tube-sheet heat exchanger, U-shaped pipe heat exchanger, stuffing-box bivalve pass heat exchanger, kettle type reboiler, stuffing-box shunting heat exchanger etc.; 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 fixed tube-sheet exchanger in the prior art.
Fig. 2 is the structural representation of a kind of compensation type heat-exchanger in the prior art.
Fig. 3 is the structural representation of a kind of U-shaped pipe heat exchanger in the prior art.
Fig. 4 is the structural representation of a kind of double pipe heat exchanger in the prior art.
Fig. 5 is the sectional structure sketch map of embodiment 1 of the heat exchanger of the utility model.
Fig. 6 is the perspective view of the flat spiral heat exchange tube of a kind of ellipse in embodiment illustrated in fig. 5.
Fig. 7 is the sectional structure sketch map of A-A portion among Fig. 6.
Fig. 8 is the sectional structure sketch map of embodiment 2 of the heat exchanger 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 described further, with purpose, characteristic and the effect of understanding the utility model fully.
Embodiment 1:
Shell-and-tube heat exchanger is one of most widely used heat exchanger, mainly partly is made up of housing, tube bank, tube sheet and end socket etc., and how rounded housing is, and bundle of parallel tubes is equipped with in inside, and the tube bank two ends are fixed on the tube sheet.
As shown in Figure 5, the heat exchanger of present embodiment is a shell-and-tube heat exchanger, mainly comprises oval flat spiral heat exchange tube 1, tube sheet 4 and tube bundle, and tube sheet 4 is provided with pore, and the flat spiral heat exchange tube 1 of some ellipses is plugged in the pore of tube sheet 4.
The main distinction of the utility model and prior art is, has adopted oval flat spiral heat exchange tube.
As Fig. 6, shown in Figure 7 be the flat spiral heat exchange tube 1 of a kind of ellipse, its main body is the body of a metal, especially, is the metal welded tube in the present embodiment.Body surrounds and forms the medium channel that a confession heat transferring medium circulates therein, with the heat exchange of medium inside and outside the realization body.
In the utility model, body is by the special-shaped pipeline section 10 that is positioned at the middle part, and first straight length 11, second straight length, 12 one that lay respectively at special-shaped pipeline section 10 two ends constitute.
In the present embodiment, the length of the major axis of special-shaped pipeline section 11 is greater than the diameter of body.
Further, first straight length 11 and second straight length 12 are isometric for not.Its beneficial effect is; The oval flat spiral heat exchange tube of the utility model is when being used to assemble heat transmission equipment; Because the pitch space of tube sheet is limited, adopt the not isometric straight length in two ends, when assembling just in the past an end by means of size; To make full use of the space between the tube sheet, improved the convenience that heat transmission equipment is installed.
Certainly, in the ordinary course of things, also can adopt first straight length 11 and second straight length 12 for isometric.
Particularly, in different embodiment, above-mentioned rotation angle can be for clockwise, also can be for counterclockwise.
The rotation angle can be chosen according to actual conditions in 75 ° at 1 °.Generally speaking, the size of rotation angle is relevant with the length of body, and the length of body is long more, and the rotation angle that can take is also just big more.Selecting for use of above-mentioned various rotation angles, also relevant with the hydrodynamics attribute of heat transferring medium, be not restriction to the utility model.
The technique scheme of the utility model applicable to stainless steel straight collimator (seamless steel pipe), is particularly useful for the metal welded tube.
Oval flat 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.
According to client's needs, the entire length of the oval flat 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 flat 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.
Process conditions, the structural safety that perfect heat exchanger should satisfy reasonably to realize defined when design or type selecting be reliable, be convenient to make, installation, Operation and maintenance and economically rationally.Therefore, in the design process of heat exchanger, give one's full attention to the harmony of each parameter.
Heat exchanger tube has constituted the heat-transfer area of heat exchanger, and the size and dimension of heat exchanger tube has very big influence to heat transfer.When adopting the heat exchanger tube of minor diameter, the heat exchange area of heat exchanger unit volume is big, and equipment is compact, and the metal wastage of unit heat transfer area is few, and heat transfer coefficient is also higher.Therefore, to the large diameter heat exchanger tube of the general selection of the big perhaps dirty fluid of viscosity, the fluid that cleans is generally selected the heat exchanger tube of minor diameter.
The parameter of the material of heat exchanger tube is selected and should be confirmed according to pressure, temperature and the corrosivity of medium.
The arrangement of heat exchanger tube on tube sheet singly will do not considered the compactedness of equipment, also will consider the situation of character, structural design and the processing and manufacturing aspect of fluid.
In addition,, often adopt method for combining and arranging, generally all adopt rounded projections arranged in its each journey, then usually adopt square arrangement between each journey, be convenient to arrange partition position like this for multi-tube pass heat exchanger.
When the heat exchanger diameter bigger, heat exchanger tube more for a long time, all must the tube bank around arc space in dispose heat exchanger tube as far as possible.This not only can increase heat transfer area effectively, can prevent that also shell-side fluid is at the arcuate region internal short-circuit and to the heat transfer deleterious impact.
The selection of heat exchanger tube centre-to-centre spacing should be considered the compactedness of structure on the tube sheet, and heat-transfer effect is considered the intensity and the required space of scavenging duct outer surface of tube sheet again.
In addition, also need consider the fixing means of heat exchanger tube on tube sheet.If spacing is too little, when employing was welded to connect, the weld seam of adjacent two heat exchanger tubes was too near, and weldquality is influenced by heat and is difficult to obtain assurance; If adopt expanded joint, extruding force possibly cause tube sheet that excessive distortion takes place, and loses the adhesion between heat exchanger tube and tube sheet.The centre-to-centre spacing of the general heat exchanger tube that adopts is not less than 1.25 times of heat exchanger tube external diameter.
The heat exchange area that needs when heat exchanger is bigger, and heat exchanger tube must increase diameter of the housing, to arrange more heat exchanger tube can not do oversizely the time.At this moment,, increase heat-transfer effect, must will restrain the branch journey, make fluid flow through each journey tube bank successively in order to improve the tube side flow velocity.In order to make heat exchanger the multitube journey, can at one end or settle the dividing plate of some in the bobbin carriage at two ends respectively.
After heat exchanger assembles successfully, also to carry out withstand voltage test and air-tight test, to guarantee reliability and security.
Embodiment 2:
The heat exchanger of using oval flat spiral heat exchange tube can also be submerged coil heat exchanger, and this heat exchanger is with the various shapes that adapt with container of the curved coiled of metal tube, and is immersed in the liquid in the container.The advantage of coil heat exchanger is simple in structure, can bear high pressure, available resistant material manufacturing.
As shown in Figure 8, for using a kind of U-shaped pipe vapor-water heat exchanger of oval flat spiral heat exchange tube, this heat exchanger comprises parts such as the oval flat spiral heat exchange tube 1, bobbin carriage end socket 4 of bobbin carriage 6, tube sheet 5, U-shaped.
The flat spiral heat exchange tube 1 of rectilinear ellipse is bent into U-shaped, can satisfies the requirement of above-mentioned heat exchanger.
In other embodiments, oval flat spiral heat exchange tube also can be made S shape as required.
A kind of heat transferring medium that only circulates in the heat exchanger of the oval flat spiral heat exchange tube of above-mentioned various application of the utility model, with other outer Medium Exchange heats of heat exchanger.
The oval flat 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 the flow-disturbing effect is obvious in the oval flat spiral heat exchange tube, and its heat exchange efficiency greatly improves, and has also further reduced the energy consumption of heat exchanger.
The oval flat spiral heat exchange tube that the utility model uses because the flow-disturbing effect in the pipe, less scaling, the anti-tartar performance is good, so the heat exchanger of the utility model also have less scaling, the characteristics that the anti-tartar performance is good.
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 exchanger of using oval flat spiral heat exchange tube comprises housing and tube sheet at least, it is characterized in that: be equipped with the many flat spiral heat exchange tubes of ellipse in the said tube sheet; The flat spiral heat exchange tube of said ellipse comprises body at least, and said body is made up of special-shaped pipeline section that is positioned at the middle part and first straight length, the second straight length one that lay respectively at said special-shaped pipeline section two ends; Said special-shaped pipeline section has oval flat cross section, and this long axis of ellipse has a rotation angle with the axis of the said relatively body of minor axis.
2. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: the length of said major axis is greater than the diameter of said body.
3. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: said first straight length and said second straight length be not for isometric or isometric.
4. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: said body is a welded tube.
5. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: said body is the metal straight collimator.
6. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: said rotation angle is clockwise or counterclockwise.
7. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: said rotation angle is 1 °-75 °.
8. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: said body is a U-shaped.
9. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: said body is a S shape.
10. use the heat exchanger of oval flat spiral heat exchange tube according to claim 1, it is characterized in that: said heat exchanger is shell-and-tube heat exchanger, submerged coil heat exchanger, spray-type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120241631 CN202216587U (en) | 2011-07-11 | 2011-07-11 | Heat exchanger adopting oval flat spiral heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120241631 CN202216587U (en) | 2011-07-11 | 2011-07-11 | Heat exchanger adopting oval flat spiral heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216587U true CN202216587U (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120241631 Expired - Fee Related CN202216587U (en) | 2011-07-11 | 2011-07-11 | Heat exchanger adopting oval flat spiral heat exchange tube |
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| Country | Link |
|---|---|
| CN (1) | CN202216587U (en) |
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 |
| CN104697360A (en) * | 2015-03-03 | 2015-06-10 | 郑州大学 | Longitudinal-flow heat exchanger supported by flow equalization helix of shell pass |
| CN105865229A (en) * | 2016-04-15 | 2016-08-17 | 马怡鑫 | Screw type heat exchanger |
| CN108007240A (en) * | 2017-12-14 | 2018-05-08 | 江苏普格机械有限公司 | A kind of compact high efficient tube-sheet heat exchanger |
-
2011
- 2011-07-11 CN CN 201120241631 patent/CN202216587U/en not_active Expired - Fee Related
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 |
| CN104697360A (en) * | 2015-03-03 | 2015-06-10 | 郑州大学 | Longitudinal-flow heat exchanger supported by flow equalization helix of shell pass |
| CN105865229A (en) * | 2016-04-15 | 2016-08-17 | 马怡鑫 | Screw type heat exchanger |
| CN108007240A (en) * | 2017-12-14 | 2018-05-08 | 江苏普格机械有限公司 | A kind of compact high efficient tube-sheet heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20120711 |