CN205860827U - Spiral elliptical tube double pipe heat exchanger - Google Patents
Spiral elliptical tube double pipe heat exchanger Download PDFInfo
- Publication number
- CN205860827U CN205860827U CN201620860678.1U CN201620860678U CN205860827U CN 205860827 U CN205860827 U CN 205860827U CN 201620860678 U CN201620860678 U CN 201620860678U CN 205860827 U CN205860827 U CN 205860827U
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- China
- Prior art keywords
- tube
- side fluid
- spiral
- heat exchanger
- inner tube
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- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a kind of Spiral Elliptical Tube double pipe heat exchanger, including outer tube, it is placed in the interior inner tube with described outer coaxial tube of outer tube, and it is connected to drive end bearing bracket and the rear end cap at outer tube two ends, inner tube is respectively arranged at two ends with tube side fluid inlet and tube side fluid outlet and extends through drive end bearing bracket and rear end cap, outer tube be respectively arranged at two ends with tube side fluid flow to contrary shell side fluid inlet and shell side fluid outlet, said inner tube shape helically ellipticity, forms circular spiral cavity between inner tube and outer tube.In heat exchanger of the present utility model, the runner in ring-type spiraled cavity is in the shape of a spiral, by the effect of centrifugal force and periodic variation speed and direction when shell-side fluid is moved wherein, thus strengthen shell-side fluid radially mixing, enhance the turbulivity of shell-side fluid self, improve convection transfer rate, meanwhile, the screw of tube side fluid improves its turbulent extent, increasing the convection transfer rate in pipe, simple in construction is prone to unpick and wash and keep in repair.
Description
Technical field
This utility model relates to heat-transfer equipment field, particularly to a kind of Spiral Elliptical Tube double pipe heat exchanger.
Background technology
Heat exchanger is to realize energy-conservation the setting of heat transmission between material between two or more fluid of different temperatures
Standby, it is to make heat be passed to, by the fluid that temperature is higher, the fluid that temperature is relatively low, makes fluid temperature (F.T.) reach the index of flow specification,
To meet the needs of process conditions, energy utilization rate can also be improved simultaneously, thus be widely used in HVAC, pressure vessel, in
Water treatment facilities, the field such as chemical industry and oil, in current double pipe heat exchanger annular space liquid turbulence degree not thus convection current
The coefficient of heat transfer is low, and the heat transfer coefficient causing double-tube heat exchanger total is low.
Utility model content
Task of the present utility model is to provide in a kind of inner tube helically ellipticity can make working fluid inner tube when moving and is subject to
Centrifugal action and periodic variation speed and direction and improve convection transfer rate to solve the deficiencies in the prior art.
This utility model is achieved through the following technical solutions utility model purpose:
A kind of Spiral Elliptical Tube double pipe heat exchanger, including outer tube, is placed in the interior inner tube with described outer coaxial tube of outer tube, with
And be connected to drive end bearing bracket and the rear end cap at outer tube two ends, inner tube be respectively arranged at two ends with tube side fluid inlet and tube side fluid outlet and
Extend through drive end bearing bracket and rear end cap, outer tube be respectively arranged at two ends with tube side fluid flow to contrary shell side fluid inlet and shell
Journey fluid issuing, said inner tube shape helically ellipticity, form circular spiral cavity between inner tube and outer tube.
Further, said inner tube is to utilize elliptical tube stamping die that pipe is struck out elliptical tube again elliptical tube to be twisted into spiral shell
Rotation and helically ellipticity.
Further, said inner tube spiral torsional is 6 ~ 12:1 away from the ratio with base tube external diameter, and transverse with the ratio of short axle is
1.5 ~ 2.0:1.
Further, said inner tube and outer tube use any one or two kinds of materials in steel, copper, titanium.These materials all have
There is preferable corrosion resistance can extend the service life of heat exchanger.
The Spiral Elliptical Tube double pipe heat exchanger that this utility model provides has the advantage that inner tube uses spiral oval
Pipe, Spiral Elliptical Tube is first to be pressed into ellipse by pipe, then elliptical tube distortion is formed, forms helical flow path, and outer tube in pipe
Between inner surface, inner tube outer surface and two end cap formed circular spiral cavity, the runner in circular spiral cavity in the shape of a spiral, shell
By the effect of centrifugal force and periodic variation speed and direction when Cheng Liuti moves in circular spiral cavity, thus strengthen
Shell-side fluid radially mixing, enhances the turbulivity of shell-side fluid self, improves convection transfer rate；Meanwhile, tube side fluid
Screw improve its turbulent extent, increase the convection transfer rate in pipe, simple in construction is prone to unpick and wash and keep in repair.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of a kind of embodiment of this utility model；
Fig. 2 is the profile in Fig. 1 at A-A；
Wherein: 1 outer tube, 2 inner tubes, 3 drive end bearing bracket 4 rear end caps, 5 tube side fluid inlet, 6 tube side fluid
Outlet, 7 shell side fluid inlet, 8 shell side fluid outlet, 9 circular spiral cavitys.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in further detail.
As shown in Figure 1 to Figure 2, a kind of Spiral Elliptical Tube double pipe heat exchanger, including outer tube 1, in being placed in outer tube 1 and outer tube
1 coaxial inner tube 2, and it is connected to drive end bearing bracket 3 and the rear end cap 4 at outer tube 1 two ends, inner tube 2 is respectively arranged at two ends with tube side fluid
Entrance 5 and tube side fluid export 6 and extend through drive end bearing bracket 3 and rear end cap 4, and outer tube 1 is respectively arranged at two ends with and tube side fluid
Flowing to contrary shell side fluid inlet 7 and shell side fluid outlet 8, inner tube 2 shape helically ellipticity, between inner tube 2 and outer tube 1
Form circular spiral cavity 9.Inner tube 2 is to utilize elliptical tube stamping die that pipe is struck out elliptical tube again elliptical tube to be twisted into spiral
And helically ellipticity, in order to obtain preferable combination property (heat transfer and resistance), inner tube spiral torsional is away from the ratio with base tube external diameter
Being 6 ~ 12:1, transverse is 1.5 ~ 2.0:1 with the ratio of short axle, and inner and outer tubes use stainless steel material, it is also possible to select casting
Any one or two kinds of materials in ferrum, copper, titanium, pottery or glass.
Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art,
On the premise of creating design without departing from this utility model, it is also possible to making some deformation and improvement, these broadly fall into this practicality
Novel protection domain.
Claims (4)
1. a Spiral Elliptical Tube double pipe heat exchanger, including outer tube, is placed in the interior inner tube with described outer concentric tube of outer tube, and
Being connected to drive end bearing bracket and the rear end cap at outer tube two ends, inner tube is respectively arranged at two ends with tube side fluid inlet and tube side fluid outlet and divides
Do not run through drive end bearing bracket and rear end cap, outer tube be respectively arranged at two ends with tube side fluid flow to contrary shell side fluid inlet and shell side
Fluid issuing, it is characterised in that: said inner tube shape helically ellipticity, form circular spiral cavity between inner tube and outer tube.
Spiral Elliptical Tube double pipe heat exchanger the most according to claim 1, it is characterised in that said inner tube is to utilize ellipse
Pipe is struck out elliptical tube and elliptical tube is twisted into spiral again and helically ellipticity by pipe stamping die.
Spiral Elliptical Tube double pipe heat exchanger the most according to claim 1, it is characterised in that: said inner tube spiral torsional away from
The ratio of base tube external diameter is 6 ~ 12:1, and transverse is 1.5 ~ 2.0:1 with the ratio of short axle.
Spiral Elliptical Tube double pipe heat exchanger the most according to claim 1, it is characterised in that: said inner tube and outer tube use
Steel, cast iron, copper, any one or two kinds of materials of titanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620860678.1U CN205860827U (en) | 2016-08-10 | 2016-08-10 | Spiral elliptical tube double pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620860678.1U CN205860827U (en) | 2016-08-10 | 2016-08-10 | Spiral elliptical tube double pipe heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205860827U true CN205860827U (en) | 2017-01-04 |
Family
ID=57657545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620860678.1U Expired - Fee Related CN205860827U (en) | 2016-08-10 | 2016-08-10 | Spiral elliptical tube double pipe heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205860827U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225057A (en) * | 2018-02-11 | 2018-06-29 | 佛山科学技术学院 | A kind of concave surface heat exchanger tube double pipe heat exchanger |
| CN108332583A (en) * | 2018-02-11 | 2018-07-27 | 佛山科学技术学院 | A kind of axial notch heat exchanger tube double pipe heat exchanger |
| WO2018223296A1 (en) * | 2017-06-07 | 2018-12-13 | 南京工业大学 | Pipe-type mixer |
| CN109443051A (en) * | 2018-11-20 | 2019-03-08 | 佛山科学技术学院 | A kind of double pipe heat exchanger |
-
2016
- 2016-08-10 CN CN201620860678.1U patent/CN205860827U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018223296A1 (en) * | 2017-06-07 | 2018-12-13 | 南京工业大学 | Pipe-type mixer |
| CN108225057A (en) * | 2018-02-11 | 2018-06-29 | 佛山科学技术学院 | A kind of concave surface heat exchanger tube double pipe heat exchanger |
| CN108332583A (en) * | 2018-02-11 | 2018-07-27 | 佛山科学技术学院 | A kind of axial notch heat exchanger tube double pipe heat exchanger |
| CN109443051A (en) * | 2018-11-20 | 2019-03-08 | 佛山科学技术学院 | A kind of double pipe heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20170810 |