CN206874394U - A kind of cooler for recycled exhaust gas with corrugated spiral heat-exchange tube - Google Patents
A kind of cooler for recycled exhaust gas with corrugated spiral heat-exchange tube Download PDFInfo
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- CN206874394U CN206874394U CN201720740033.9U CN201720740033U CN206874394U CN 206874394 U CN206874394 U CN 206874394U CN 201720740033 U CN201720740033 U CN 201720740033U CN 206874394 U CN206874394 U CN 206874394U
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- section
- cooler
- exhaust gas
- recycled exhaust
- smooth
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
In the utility model, due to being provided with smooth and round section between adjoining spiral section, it is adapted to support using connecting plate, enhance the intensity of helix tube, prevent cooler for recycled exhaust gas in use because vibration produces collision voice, increase the service life of cooler for recycled exhaust gas, while ensure that the gap between helix tube, and then ensure the heat exchange property of cooler for recycled exhaust gas.
Description
Technical field
Petrol and diesel oil car field is the utility model is related to, particularly a kind of cooler for recycled exhaust gas with corrugated spiral heat-exchange tube.
Background technology
At present, the radiating tube in domestic gasoline and diesel engine cooler for recycled exhaust gas housing is arranged to helix tube (helical corrugation changes
Heat pipe) structure, the structure setting of this helix tube, the cooling stroke of radiating tube can be extended to a certain extent, while because of spiral
In pipe the choked flow effect of helicla flute, can effectively slow down the cooling flow velocity of tail gas, extend heat exchanger time, and cooler is realized with this
The lifting of cooling effectiveness.
But in practice because not having relevance between each helix tube, when helix tube is longer, helix tube is flexible in vehicle
Helix tube can produce larger deformation during traveling, and corrugated spiral heat-exchange tube deformation is excessive to may result in helix tube and connecting plate
Between welding damage.
Utility model content
In order to overcome above mentioned problem, the utility model provides a kind of corrugated spiral heat-exchange tube and cooler for recycled exhaust gas and egr system
It can prevent that corrugated spiral heat-exchange tube deformation is excessive.
In order to achieve the above-mentioned advantages, the utility model provides a kind of corrugated spiral heat-exchange tube, the corrugated spiral heat-exchange tube includes
Multistage has the spiral section of helicla flute, and a smooth and round section between the adjacent spiral section, the section of the smooth and round section for etc.
Cross section tubular structure.
The utility model also provides a kind of cooler for recycled exhaust gas, including shell, more corrugated spiral heat-exchange tubes, positioned at the spiral shell
Revolve main leaf, the connecting plate in the middle part of the corrugated spiral heat-exchange tube at corrugated tube both ends, the connecting plate with it is described outer
Shell is connected, and the corrugated spiral heat-exchange tube includes the spiral section that multistage has helicla flute, and positioned at the adjacent spiral section
Between smooth and round section, the section of the smooth and round section is uiform section tubular structure, and the smooth and round section is welded and fixed with the connecting plate.
The utility model also provides a kind of egr system, including engine, EGR valve and cooler for recycled exhaust gas, the EGR coolings
Device include shell, more corrugated spiral heat-exchange tubes, the main leaf positioned at the corrugated spiral heat-exchange tube both ends, positioned at the helicon
Connecting plate in the middle part of line heat exchanger tube, the connecting plate are fixed with the cage connection, and the corrugated spiral heat-exchange tube includes multistage
Spiral section with helicla flute, and the smooth and round section between the adjacent spiral section, the section of the smooth and round section is uiform section
Tubular structure, the smooth and round section are welded and fixed with the connecting plate.
In one embodiment of the present utility model, the connecting plate offers more corrugated spiral heat-exchange tubes of multiple receivings
Through hole.
In one embodiment of the present utility model, the corrugated spiral heat-exchange tube both ends have and the smooth and round section section
Identical end.
In one embodiment of the present utility model, the corrugated spiral heat-exchange tube is made of stainless steel.
In one embodiment of the present utility model, the section of the smooth and round section is circle.
In one embodiment of the present utility model, the corrugated spiral heat-exchange tube is opened up by round tube in the spiral section
Helicla flute is formed.
In one embodiment of the present utility model, the smooth and round section is used for the weldering for ensureing the through hole and the smooth and round section
Connect gap.
In the utility model, due to being provided with smooth and round section between adjoining spiral section, it is adapted to support using connecting plate, increases
The strong intensity of helix tube, prevents cooler for recycled exhaust gas from because vibration produces collision voice, increasing cooler for recycled exhaust gas in use
Service life, while ensure that the gap between helix tube, and then ensure the heat exchange property of cooler for recycled exhaust gas.
Brief description of the drawings
The structure that Fig. 1 show the cooler for recycled exhaust gas with corrugated spiral heat-exchange tube of the utility model first embodiment is shown
It is intended to.
Fig. 2 show the structural representation of Fig. 1 corrugated spiral heat-exchange tube.
Fig. 3 show the schematic diagram of Fig. 1 corrugated spiral heat-exchange tube.
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose of utility model taken,
Below in conjunction with accompanying drawing and preferred embodiment, to according to the utility model proposes embodiment, structure, feature and its effect,
Describe in detail as after.
Refer to Fig. 1, the cooler for recycled exhaust gas with corrugated spiral heat-exchange tube of the utility model first embodiment, including it is outer
Shell 1, more corrugated spiral heat-exchange tubes 2, the main leaf 3 positioned at the both ends of corrugated spiral heat-exchange tube 2, in corrugated spiral heat-exchange tube 2
The connecting plate 4 in portion, connecting plate 4 are connected with shell 1, and connecting plate 4 is fixed with shell 1 especially by soldering.
Refer to Fig. 2,3, corrugated spiral heat-exchange tube 2 includes the spiral section 21 that multistage has helicla flute 210, and positioned at adjacent
Smooth and round section 22 between spiral section 21, the section of smooth and round section 22 is uiform section tubular structure, and smooth and round section 22 and the welding of connecting plate 4 are solid
It is fixed, fixed especially by soldering.Connecting plate 4 offers the through hole of more corrugated spiral heat-exchange tubes 2 of multiple receivings.
The utility model also provides a kind of egr system, including engine, EGR valve and cooler for recycled exhaust gas, cooler include
Shell 1, more corrugated spiral heat-exchange tubes 2, the main leaf 3 positioned at the both ends of corrugated spiral heat-exchange tube 2, positioned at corrugated spiral heat-exchange tube 2
The connecting plate 4 at middle part, connecting plate 4 are connected with shell 1, and corrugated spiral heat-exchange tube 2 includes the spiral shell that multistage has helicla flute 210
Revolve section 21, and the smooth and round section 22 between adjoining spiral section 21, the section of smooth and round section 22 is uiform section tubular structure, smooth and round section
22 are welded and fixed with connecting plate 4.
The both ends of corrugated spiral heat-exchange tube 2 have solid with the section identical end 20 of smooth and round section 22, end 20 and the welding of main leaf 3
It is fixed.
Corrugated spiral heat-exchange tube 2 is made of stainless steel.The section of smooth and round section 22 is circle.Corrugated spiral heat-exchange tube 2 is by justifying
Shape pipe opens up helicla flute 210 in spiral section 21 and formed, and certain corrugated spiral heat-exchange tube 2 can also be by the position pair of spiral section 21
Round steel pipe carries out torsion formation.
Smooth and round section 22 is used for the welded gaps for ensureing through hole and smooth and round section 22, ensure that the welding of connecting plate and smooth and round section is strong
Degree.
In the utility model, due to being provided with smooth and round section between adjoining spiral section, it is adapted to support using connecting plate, increases
The strong intensity of helix tube, prevents cooler for recycled exhaust gas from because vibration produces collision voice, increasing cooler for recycled exhaust gas in use
Service life, while ensure that the gap between helix tube, and then ensure the heat exchange property of cooler for recycled exhaust gas.
More than, only it is preferred embodiment of the present utility model, not makees any formal limit to the utility model
System, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any to be familiar with sheet
Technical professional, do not departing from the range of technical solutions of the utility model, when the technology contents work using the disclosure above
Go out a little change or be modified to the equivalent embodiments of equivalent variations, as long as be without departing from the content of the technical scheme of the utility model, according to
Any simple modification, equivalent variations and the modification made according to the technical essence of the utility model to above example, still fall within
In the range of technical solutions of the utility model.
Claims (7)
1. a kind of cooler for recycled exhaust gas with corrugated spiral heat-exchange tube, it is characterised in that including shell, more helical corrugation heat exchange
Pipe, the main leaf positioned at the corrugated spiral heat-exchange tube both ends, the connecting plate in the middle part of the corrugated spiral heat-exchange tube, the company
Fishplate bar is fixed with the cage connection, and the corrugated spiral heat-exchange tube includes the spiral section that multistage has helicla flute, and positioned at phase
Smooth and round section between the adjacent spiral section, the section of the smooth and round section is uiform section tubular structure, the smooth and round section and the company
Fishplate bar is welded and fixed.
2. cooler for recycled exhaust gas according to claim 1, it is characterised in that the connecting plate offers more spiral shells of multiple receivings
Revolve the through hole of corrugated tube.
3. cooler for recycled exhaust gas according to claim 1, it is characterised in that the corrugated spiral heat-exchange tube both ends have and institute
State smooth and round section section identical end.
4. cooler for recycled exhaust gas according to claim 1, it is characterised in that the corrugated spiral heat-exchange tube is made of stainless steel.
5. cooler for recycled exhaust gas according to claim 1, it is characterised in that the section of the smooth and round section is circle.
6. cooler for recycled exhaust gas according to claim 1, it is characterised in that the corrugated spiral heat-exchange tube is by round tube in institute
State spiral section and open up helicla flute and formed.
7. cooler for recycled exhaust gas according to claim 2, it is characterised in that the smooth and round section is used to ensure the through hole and institute
State the welded gaps of smooth and round section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720740033.9U CN206874394U (en) | 2017-06-23 | 2017-06-23 | A kind of cooler for recycled exhaust gas with corrugated spiral heat-exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720740033.9U CN206874394U (en) | 2017-06-23 | 2017-06-23 | A kind of cooler for recycled exhaust gas with corrugated spiral heat-exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874394U true CN206874394U (en) | 2018-01-12 |
Family
ID=61334210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720740033.9U Active CN206874394U (en) | 2017-06-23 | 2017-06-23 | A kind of cooler for recycled exhaust gas with corrugated spiral heat-exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874394U (en) |
-
2017
- 2017-06-23 CN CN201720740033.9U patent/CN206874394U/en active Active
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