CN206347911U - A kind of corrosion resistant alloy finned tube - Google Patents
A kind of corrosion resistant alloy finned tube Download PDFInfo
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- CN206347911U CN206347911U CN201621464254.XU CN201621464254U CN206347911U CN 206347911 U CN206347911 U CN 206347911U CN 201621464254 U CN201621464254 U CN 201621464254U CN 206347911 U CN206347911 U CN 206347911U
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- finned tube
- corrosion resistant
- resistant alloy
- fin
- utility
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Abstract
A kind of corrosion resistant alloy finned tube, including body, described body external side parallel is at least symmetrically arranged with to be provided with to be provided with chamfer plane, described chamfer plane on an external fin, described outer fin in the body direction of axis line helps weldering line for lift welding effect.The utility model is redesigned the technique effect for having reached and being easy to welding by the structure of the outer fin to finned tube.
Description
Technical field
The utility model is related to corrosion resistant alloy finned tube processing technique field, more particularly to a kind of corrosion resistant alloy finned tube.
Background technology
Finned tube, is in order to improve heat exchange efficiency, generally on the surface of heat exchanger tube by adding outside fin, increase heat exchanger tube
Surface area（Or internal surface area）, so as to reach the purpose for improving heat exchange efficiency.Finned tube is as heat exchange element, and long-term work is in height
Under the operating mode of warm flue gas, such as gasification furnace heat exchanger is severe with finned tube use environment, HTHP and in aggressive atmosphere,
This requires that finned tube should have a very high performance indications, such as antiseptic property, anti-wear performance, low thermal contact resistance, high stability,
Accumulatingdust ability.But finned tube usually requires progress and is welded into comb in actual use, traditional finned tube was being welded
Sufficiently complex in journey, the effect of welding is not also good, the influence also ten of the rosin joint position of appearance for the practical effect of product
It is point big, so needing to design a kind of finned tube and its manufacture method to lift the welding effect of finned tube so that finned tube should
With more facilitate.
The content of the invention
The utility model provides a kind of corrosion resistant alloy finned tube in view of the deficiencies of the prior art, and the utility model passes through
The technique effect for having reached and being easy to welding is redesigned to the structure of the outer fin of corrosion resistant alloy finned tube.
The technical solution of the utility model is to provide on the outside of a kind of corrosion resistant alloy finned tube, including body, described body
At least be symmetrically arranged with an external fin, described outer fin parallel to the body direction of axis line be provided with chamfering put down
It is provided with face, described chamfer plane and helps weldering line for lift welding effect.
It is used as of the present utility model preferred, the chamfer plane of symmetrically arranged two outer fins on the body
Set in the same direction.
It is used as of the present utility model preferred, the chamfer plane of symmetrically arranged two outer fins on the body
It is oppositely arranged.
As it is of the present utility model preferably, described to help weldering line to include spaced burr and dimpled grain, described is convex
The radial section of line and the dimpled grain is that the described of symmetrically arranged two outer fins on triangle, the body helps weldering line
Shift to install.
It is the 0.2 ~ 0.25 of the outer tube diameter of the body as the length of of the present utility model preferred, described outer fin.
The utility model has the advantages that：
1st, the utility model structure helps to simplify the welding effect of the welding difficulty lifting finned tube of corrosion resistant alloy finned tube
Really.
2nd, the utility model method helps to produce the stable corrosion resistant alloy finned tube of the present utility model of cast.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of the present utility model；
Fig. 2 is the structural representation of second of embodiment of the present utility model；
Fig. 3 is the structural representation of the amplification at A in Fig. 1 of the present utility model and Fig. 2；
Fig. 4 is the structural representation of special-shaped extrusion mould of the present utility model；
In figure, 1- bodys；The outer fins of 2-；3- chamfer planes；4- helps weldering line；4-1- burrs；4-2- dimpled grains；5- tube bodies；
6- fin parts.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Fin tube material is corrosion resistant alloy 800LC, 48.3 millimeters of finned tube external diameter, 8 millimeters of wall thickness, fin two ends spacing 60
Millimeter, cut is 60 degree.
As shown in Figures 1 and 3, the first constructive embodiment of the present utility model includes body 1, it is characterised in that：Body 1
External side parallel is at least symmetrically arranged with an external fin 2, outer fin 2 in the direction of axis line of body 1 and is provided with chamfer plane 3,
It is provided with chamfer plane 3 and welds line 4 for lifting helping for welding effect.The chamfering of symmetrically arranged two outer fins 2 on body 1
Plane 3 is set in the same direction.Setting in the same direction contributes to the bonding strength lifting of overall outer fin 2 after the completion of tube-welding.Help weldering line 4
Radial section including spaced burr 4-1 and dimpled grain 4-2, burr 4-1 and dimpled grain 4-2 is right on triangle, body 1
Claim the two outer fins 2 set helps weldering line 4 to shift to install, and the setting one for helping weldering line 4 is that, in order to lift bonding area, lifting is welded
The adherence of material；Two be in order to be able to can accomplish that spacing is consistent when the continuous Combination Welding of body 1 is into comb, shift to install
The spacing of each two tubing can be fixed when welding resistance line can guarantee that many continuous welding, be unlikely to uniformity decline.Help
Weld line 4 burr 4-1 end to the direction of body 1 tilt, be so provided with reduction help welding when two bodys 1 right
Reduce the hoisting depth of a wherein body 1 when connecing, so that efficiency is better able to lifting, when a body 1 is managed to another
When body 1 is pushed, outer fin 2 is in burr 4-1 relative motions, because burr 4-1 sloped-end formation inclined-plane conveniently finishes
Close.The length of outer fin 2 is the 0.2 ~ 0.25 of the outer tube diameter of body 1.The scope of the size contributes to body 1 when shaping
It will not lose shape, if undersized, the shape of the endoporus of body 1 can lose shape, and the shape of outer fin 2 can be walked if oversized
Sample.
As shown in Figure 2 and Figure 3, second of constructive embodiment of the present utility model includes body 1, it is characterised in that：Body 1
External side parallel is at least symmetrically arranged with an external fin 2, outer fin 2 in the direction of axis line of body 1 and is provided with chamfer plane 3,
It is provided with chamfer plane 3 and welds line 4 for lifting helping for welding effect.The chamfering of symmetrically arranged two outer fins 2 on body 1
Plane 3 is oppositely arranged.It is oppositely arranged to help so that continuous comb welding becomes easily operation, only needed to welding gun during welding
Rest on above weld seam.Weldering line 4 is helped to include spaced burr 4-1 and dimpled grain 4-2, burr 4-1 and dimpled grain 4-2
Radial section be on triangle, body 1 symmetrically arranged two outer fins 2 help weldering line 4 shift to install, help weldering line 4 setting
One is to lift bonding area, lift the adherence of solder；Two be in order to be able to when the continuous Combination Welding of body 1 is into comb
Time can accomplish that spacing is consistent, and the spacing of each two tubing can be obtained when the welding resistance line shifted to install can guarantee that many continuous welding
To fixation, it is unlikely to uniformity decline.Help the burr 4-1 of weldering line 4 end to be tilted to the direction of body 1, be so provided with reduction
Help the hoisting depth that two bodys 1 when welding reduce a wherein body 1 in docking, so that efficiency is better able to
Lifting, when a body 1 is pushed to another body 1, outer fin 2 is in burr 4-1 relative motions, due to burr 4-1
Sloped-end formation inclined-plane facilitate combination.The length of outer fin 2 is the 0.2 ~ 0.25 of the outer tube diameter of body 1.The size
Scope contributes to body 1 not lose shape when shaping, if undersized, the shape of the endoporus of body 1 can lose shape, if
Oversized, the shape of outer fin 2 can lose shape.
Embodiment of the method for the present utility model comprises the following steps,
Step one, pre-process, remove the oxide layer on round steel surface and carry out the pipe that is built in sections according to size requirements, specifically
Including first being tested to round steel, peeling processing is then carried out, the oxide layer on round steel surface is removed, finally by cutting equipment
Round steel is subjected to segmentation and completes blanking process, the peeling round steel after segmentation is both pipe；
Step 2, drilling processing carries out through hole drilling processing, in order to formed along the direction of axis line of one-level pipe
Future body 1 endoporus preformed hole, then again through hole one end carry out chamfer machining, thus facilitate entering for hole expansion die
Enter, cleaned the pipe after completing to drill after detecting the inner surface of through hole；
Step 3, hot extrusion is preheated pipe in annular furnace, is then heated to add by induction heater
Work temperature, then expanding treatment is carried out to through hole by hole expansion die, processing temperature then is heated to again by induction heater,
Thick shaping pipe is made in pipe progress extrusion process finally by special-shaped extrusion mould；
Thick formed pipe is carried out aligning processing by step 4, straightening processing by can adjust the left and right gag press of spaced position,
Aligning is cut after machining according to size requirement, is surface-treated after the completion of cutting, surface treatment is mainly pickling,
The method of aligning processing is the two ends of fixed thick shaping pipe, then thick shaping pipe is stretched, while to the two of tubing
End is rotated against to increase straightening effect；
Step 5, cold-drawn processing, carries out cold-drawn processing to the thick shaping pipe after surface treatment, then deoils, the step
Suddenly in order to reduce tube outer diameter, wall thickness, it is desirably to obtain the dimensions for meeting design；
Step 6, heat treatment, tubing is heat-treated after being deoiled to cold-drawn, the stress that cold-drawn is produced is eliminated, after heat treatment
Pickling removes the oxide skin that heat treatment is produced, and is that next passage cold-drawn is prepared；Step 7, circular treatment, repeat step four
Finished product tubing is formed to surface treatment end at least one times to step 5, cycle-index is specifically formulated by process requirements, if
Find that size of pipe and tubing or surface up to requiring, do not increase cycle-index to solve problem after pickling；
Step 8, detection process can be tested finished product tubing progressive, and performance test includes being used to detect that tubing is pressure-resistant
Hydraulic pressure test, for detecting tubing whether there is the Eddy current test of crackle and Surface testing for detecting tubing surface damage；
Step 9；The outer working process of fin 2, chamfer machining, the method for chamfer machining are carried out to the outer fin 2 of finished product tubing
First cut outer fin 2 to form chamfering, the speed for controlling the angle of cutting and cutting saw propulsion makes the chamfer surface shape of outer fin 2
Into weldering line 4 is helped, when the size for helping weldering line 4 does not reach requirement, cutter device can be reused（Cut saw, cutting knife etc.）To chamfering
Plane 3 is processed again.
As shown in figure 4, the special-shaped extrusion mould of the utility model embodiment includes tube body 5 and fin part 6, tube body
5 be that horn mouth is provided with manhole, the inlet side of tube body 5, and the AnchorPoint using body 1 of fin part 6 is symmetric points mirror image
The both sides of tube body 5 are arranged on, and the outboard end of fin part 6 is arc, is conducive to metal flow during extruding to be full of mould, prevents
Body " peach point " problem after extruding.The length of fin part 6 is the 0.22 ~ 0.27 of the diameter of tube body 5, and the size passes through multiple
Experiment confirms, then easily causes the internal diameter of body 1 of thick shaping pipe can not form the circle of standard if less than the size, but
The peach type stretched into the outside direction of fin 2, and it is very difficult more than the extrusion process of the size then outer fin 2, cause outer wing
The uniformity of piece 2 is deteriorated, simultaneously because finally carrying out needing to remove when chamfering cutting some outer fins 2 so fin part 6
Length need be more than the outer length of fin 2.
Embodiment described above is only that preferred embodiment of the present utility model is described, not new to this practicality
The spirit and scope of type are defined.On the premise of the utility model design concept is not departed from, this area ordinary person is to this
The all variations and modifications that the technical scheme of utility model is made, all should drop into protection domain of the present utility model, this practicality
New claimed technology contents, have all been recorded in detail in the claims.
Claims (5)
1. a kind of corrosion resistant alloy finned tube, including body（1）, it is characterised in that：Described body（1）External side parallel is in the pipe
Body（1）Direction of axis line is at least symmetrically arranged with an external fin（2）, described outer fin（2）On be provided with chamfer plane
（3）, described chamfer plane（3）On be provided with and help weldering line for lift welding effect（4）.
2. a kind of corrosion resistant alloy finned tube according to claim 1, it is characterised in that：The body（1）On be symmetrical arranged
Two outer fins（2）The chamfer plane（3）Set in the same direction.
3. a kind of corrosion resistant alloy finned tube according to claim 1, it is characterised in that：The body（1）On be symmetrical arranged
Two outer fins（2）The chamfer plane（3）It is oppositely arranged.
4. a kind of corrosion resistant alloy finned tube according to claim 1, it is characterised in that：Described helps weldering line（4）Including
Every the burr of setting（4-1）And dimpled grain（4-2）, described burr（4-1）With the dimpled grain（4-2）Radial section be triangle
Shape, the body（1）Upper symmetrically arranged two outer fins（2）Described help weldering line（4）Shift to install.
5. a kind of corrosion resistant alloy finned tube according to claim 1, it is characterised in that：Described outer fin（2）Length
For the body（1）Outer tube diameter 0.2 ~ 0.25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621464254.XU CN206347911U (en) | 2016-12-29 | 2016-12-29 | A kind of corrosion resistant alloy finned tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621464254.XU CN206347911U (en) | 2016-12-29 | 2016-12-29 | A kind of corrosion resistant alloy finned tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206347911U true CN206347911U (en) | 2017-07-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621464254.XU Active CN206347911U (en) | 2016-12-29 | 2016-12-29 | A kind of corrosion resistant alloy finned tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767096A (en) * | 2016-12-29 | 2017-05-31 | 浙江久立特材科技股份有限公司 | A kind of corrosion resistant alloy finned tube and manufacture method |
| CN109506397A (en) * | 2017-09-14 | 2019-03-22 | 宁波德业科技集团有限公司 | A kind of finned tube evaporator |
-
2016
- 2016-12-29 CN CN201621464254.XU patent/CN206347911U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767096A (en) * | 2016-12-29 | 2017-05-31 | 浙江久立特材科技股份有限公司 | A kind of corrosion resistant alloy finned tube and manufacture method |
| CN109506397A (en) * | 2017-09-14 | 2019-03-22 | 宁波德业科技集团有限公司 | A kind of finned tube evaporator |
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