CN104971979B - A kind of preparation method of chuck pipe bend - Google Patents
A kind of preparation method of chuck pipe bend Download PDFInfo
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- CN104971979B CN104971979B CN201410139031.5A CN201410139031A CN104971979B CN 104971979 B CN104971979 B CN 104971979B CN 201410139031 A CN201410139031 A CN 201410139031A CN 104971979 B CN104971979 B CN 104971979B
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- pipe
- inner sleeve
- outer tube
- positioning
- positioning pipe
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Abstract
The present invention provides a kind of preparation method of chuck pipe bend, the jacket pipe includes inner sleeve and outer tube, the external diameter of the inner sleeve is d, the internal diameter of outer tube is D, positioning pipe is provided between inner sleeve and outer tube, the diameter parallel of pipe is positioned in inner sleeve and the axis of outer tube, the positioning pipe opens up multiple grooves vertically, many positioning pipes are circumferentially fixed on the outer wall of inner sleeve, and the groove of the positioning pipe is outwardly, outer tube is enclosed within the inner sleeve with positioning pipe, simmering and bending are integrally carried out to jacket pipe in the position for being provided with positioning pipe after assembling.This method changes existing jacket pipe elbow-making method, replace original welding production method using mechanical simmering and bending, replace original pure hand labour using mechanized construction, greatly reduce labour intensity, and because being provided with positioning pipe between inner sleeve and outer tube, the concentricity between inner sleeve and outer tube is effectively guaranteed, advantageously in real work.
Description
Technical field
The present invention relates to a kind of preparation method of jacket pipe, more particularly to a kind of preparation method of chuck pipe bend.
Background technology
Jacket pipe is a kind of special pipeline for heating or maintaining fluid temperature (F.T.), and jacket pipe has heat tracing efficiency high, companion
Hot uniform, temperature adjustment is rapid, using the wide advantage of scope, thus be widely used aborning.The main knot of jacket pipe
Structure includes inner sleeve and outer tube, and outer tube is enclosed within inner sleeve, there is certain gap, inner sleeve between inner sleeve and outer tube
In be used to convey the fluid that heat is provided for conveying processing medium, in gap, the processing medium in inner sleeve by convection current with
The fluid for having heat in gap forms heat exchange, and then the processing medium in inner sleeve is played a part of to be incubated or heated.
Although jacket pipe still has many places it should be noted that for example using relatively broad when specifically used：Because
Jacket pipe is divided into inside and outside two-layer, so jacket pipe should avoid the appearance at U-bend, corner or dead angle in design in order to avoid influenceing work
Make, but because the limitation in space, still occurs some U-bends or corner during actual installation, in these local jacket pipes just
Need to make elbow, because elbow position is larger to the overall influence of jacket pipe and clears up also relative difficulty,
It is very high to the welding quality of elbow and required precision during actual fabrication.Existing elbow-making method is generally used and cuts elbow open
It is enclosed within inner sleeve, elbow outside is welded again then, be finally again welded outer tube, when this method welding expends
Between it is more long, operating efficiency is relatively low, so in order to time-consuming and improve the quality of elbow, it is necessary to a kind of new elbow-making side
Method.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of making quality for improving chuck pipe bend, improves work effect
The preparation method of the chuck pipe bend of rate, to overcome the drawbacks described above of prior art.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：A kind of preparation method of chuck pipe bend,
The jacket pipe includes inner sleeve and outer tube, and the external diameter of the inner sleeve is d, and the internal diameter of outer tube is D, the system of the elbow
Comprise the following steps：
First, according to inner sleeve external diameter and the diameter of the internal diameter regioselective pipe of outer tube, positioning pipe is in inner sleeve
And outer tube between, the diameter parallel of pipe is positioned in inner sleeve and the axis of outer tube, and the positioning pipe is provided with many
Root；
2nd, after determining positioning pipe, positioned at every open up multiple grooves on pipe vertically；
The 3rd, positioning pipe is circumferentially fixed on the outer wall of inner sleeve, and the groove for positioning pipe is outwardly；
4th, outer tube is enclosed within inner sleeve；
5th, simmering and bending are integrally carried out to jacket pipe in the position for being provided with positioning pipe.
Preferably, the external diameter that pipe is positioned in the step one is obtained by formula (D-d-2)/2.
Preferably, in the step 2, it is 45mm~55mm to position the distance between each groove of pipe.
Preferably, in the step 3, positioning pipe is provided with four, and is evenly distributed in the circumference of inner sleeve.
Preferably, in the step 3, positioning pipe is welded on the outer wall of inner sleeve.
As described above, a kind of preparation method of chuck pipe bend of the invention, has the advantages that：
This method changes existing jacket pipe elbow-making method, and original welding production side is replaced using mechanical simmering and bending
Method, original pure hand labour is replaced using mechanized construction, greatly reduces labour intensity.And because in inner sleeve and overcoat
Positioning pipe is provided between pipe, the concentricity between inner sleeve and outer tube is effectively guaranteed, especially in elbow,
Make also very simple so that the welding capacity of jacket pipe integral manufacturing greatly reduces, improve the making effect of jacket pipe
Rate.
Brief description of the drawings
Fig. 1 is figure the step of inner sleeve and outer tube are combined in the present invention.
Fig. 2 is the schematic diagram after inner sleeve of the invention and outer tube combination.
Fig. 3 is direction view at A in Fig. 2.
Fig. 4 is embodiments of the present invention schematic diagram.
In figure：1 inner sleeve
2 outer tubes
3 positioning pipes
11 inner sleeve tube inlets
21 overcoat tube inlets
31 grooves
Specific embodiment
Structure, ratio, size depicted in Figure of description etc., are only used to coordinate the content disclosed in specification, with
Understand and read for those skilled in the art, be not limited to enforceable qualifications of the invention, therefore do not have technically
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size can be generated the present invention is not being influenceed
Under effect and the purpose to be reached, all should still fall in the range of disclosed technology contents to be covered.Meanwhile,
In this specification it is cited such as " on ", D score, "front", "rear", " centre " term, be merely convenient to understanding for narration, and
It is not used to limit enforceable scope of the invention, being altered or modified for its relativeness is changed under technology contents without essence, when
Also it is considered as enforceable category of the invention.
It is as shown in Figure 1 to Figure 3 a kind of preparation method assembling schematic diagram of chuck pipe bend of the invention, wherein the chuck
Pipe includes inner sleeve 1 and outer tube 2, and the external diameter of the inner sleeve 1 is d, and the internal diameter of outer tube 2 is D, inner sleeve 1 and outer tube 2
Between have gap.Other straight line portions are when mounted only it is noted that the concentricity of guarantee inner sleeve 1 and outer tube 2 is in allowable error
In the range of, but the more difficult operation of elbow part, so the present invention proposes a preparation method for elbow, it makes main
Comprise the following steps：
As shown in figure 1, the diameter of the diameter regioselective pipe 3 of diameter and outer tube 2 first according to inner sleeve 1, fixed
Circle of position pipe 3 positions the diameter parallel of pipe 3 in inner sleeve 1 and outer tube 2 in the gap of inner sleeve 1 and outer tube 2, and
The positioning pipe 3 is provided with many.The external diameter of the positioning pipe 3 in the present invention is obtained by formula (D-d-2)/2, by above-mentioned public affairs
The diameter of the positioning pipe 3 obtained by formula is than the small 1mm in gap between inner sleeve 1 and outer tube 2, it is therefore an objective to ensure subsequently simmering
There is certain space when curved, and then ensure the concentricity of inner sleeve 1 and outer tube 2 during jacket pipe simmering and bending.
After the external diameter for determining positioning pipe 3, positioned at every open up multiple grooves 31 on pipe 3 vertically, it is described
Groove 31 is opened up by different angles, and the angle of groove 31 and the spacing of groove 31 are according to the overall diameter of jacket pipe (i.e. outer tube 2
External diameter) it is different with the angle of simmering and bending depending on.Ordinary circumstance is that the diameter of jacket pipe is smaller, and the spacing of groove 31 is smaller；Chuck
The angle of pipe simmering and bending is bigger, and the groove 31 for positioning pipe 3 is smaller.In the present embodiment, between each groove 31 of positioning pipe 3
Distance be 45mm~55mm.
After the groove 31 for positioning pipe 3 has been opened up, positioning pipe 3 is circumferentially fixed on the outer wall of inner sleeve 1, and
The groove 31 of the positioning pipe 3 is outwardly.Further, in order to ensure uniform force between inner sleeve 1 and outer tube 2, such as Fig. 3
Shown, the positioning pipe 3 is provided with four, and is evenly distributed in the circumference of inner sleeve 1.Preferably, four positioning pipes 3
All it is welded to the outer wall of inner sleeve 1.Be enclosed within outer tube 2 on the inner sleeve 1 with positioning pipe 3 after fixing by positioning pipe 3,
According to the computational methods (D-d-2)/2 of the above-mentioned diameter of positioning pipe 3, with the internal diameter 50mm of outer tube 2, the external diameter 32mm of inner sleeve 1 is
Example, draws a diameter of 8mm of positioning pipe 3, it can be deduced that after positioning pipe 3 is fixed to the outer wall of inner sleeve 1, position pipe
3 apart from outer tube 2 inwall be 1mm, 1mm apart from very little, on the one hand can play guarantee inner sleeve 1 and outer tube 2 it is concentric
The effect of positioning, is on the other hand for follow-up simmering and bending provide some spaces.
It is last that simmering and bending are integrally carried out to jacket pipe in the position for being provided with positioning pipe 3, in simmering and bending, because positioning pipe 3
Effect, will not be very big between inner sleeve 1 and outer tube 2 position skew, positioning pipe 3 on groove 31 be for the ease of
It is easy to bending during simmering and bending, wherein crackle occur when on the one hand preventing outside to bend and influenceing overall stability and work to imitate
Rate, on the other hand prevents inner side and corrugation occurs and influence operating efficiency and cleaning because of bending.
Embodiments of the invention schematic diagram is illustrated in figure 4, including straight line portion and elbow part, various pieces are all
It is pre-designed, so welding positioning pipe 3 on the outer wall of the relevant position of inner sleeve 1 in order to make elbow.
During work, in the gap that the fluid with heat enters into inner sleeve 1 and outer tube 2 from overcoat tube inlet 21, working media from
Inner sleeve tube inlet 11 is entered into inner sleeve 1, and working media is incubated or is heated by heat transfer.
In sum, the preparation method of a kind of chuck pipe bend of the invention, can solve the problem that jacket pipe elbow part is processed
The problem of inconvenience.So, the present invention effectively overcomes some practical problems of the prior art so as to there is value very high
With use meaning.
Above-mentioned implementation method only illustrative principle of the invention and its effect, not for the limitation present invention.This hair
Bright also have many aspects can be improved on the premise of without prejudice to overall thought, all can be for those skilled in the art
Without prejudice under spirit and scope of the invention, modifications and changes can be carried out to above-described embodiment.Therefore, art such as
All equivalent modifications that middle tool usually intellectual is completed under without departing from disclosed spirit and technological thought or
Change, should be covered by claim of the invention.
Claims (5)
1. a kind of preparation method of chuck pipe bend, the jacket pipe includes inner sleeve (1) and outer tube (2), the inner sleeve
(1) external diameter is d, and the internal diameter of outer tube (2) is D, it is characterised in that comprised the following steps：
First, according to inner sleeve (1) external diameter and the diameter of internal diameter regioselective pipe (3) of outer tube (2), positioning pipe (3)
Between inner sleeve (1) and outer tube (2), the diameter parallel of pipe (3) is positioned in inner sleeve (1) and the axis of outer tube (2),
And positioning pipe (3) is provided with many；
2nd, after determining positioning pipe (3), positioned at every open up multiple grooves (31) on pipe (3) vertically；
3rd, the outer wall that pipe (3) is circumferentially fixed on inner sleeve (1), and the groove (31) for positioning pipe (3) will be positioned
Outwardly；
4th, outer tube (2) is enclosed within inner sleeve (1)；
5th, simmering and bending are integrally carried out to jacket pipe in the position for being provided with positioning pipe (3).
2. the preparation method of a kind of chuck pipe bend according to claim 1, it is characterised in that：Positioned in the step one
The diameter of pipe (3) is obtained by formula (D-d-2mm)/2.
3. the preparation method of a kind of chuck pipe bend according to claim 1, it is characterised in that：It is fixed in the step 2
The distance between each groove (31) of circle of position pipe (3) is 45mm~55mm.
4. the preparation method of a kind of chuck pipe bend according to claim 1, it is characterised in that：It is fixed in the step 3
Circle of position pipe (3) is provided with four, and is evenly distributed in the circumference of inner sleeve (1).
5. the preparation method of a kind of chuck pipe bend according to claim 1, it is characterised in that：It is fixed in the step 3
Circle of position pipe (3) is welded on the outer wall of inner sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139031.5A CN104971979B (en) | 2014-04-08 | 2014-04-08 | A kind of preparation method of chuck pipe bend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139031.5A CN104971979B (en) | 2014-04-08 | 2014-04-08 | A kind of preparation method of chuck pipe bend |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104971979A CN104971979A (en) | 2015-10-14 |
| CN104971979B true CN104971979B (en) | 2017-06-06 |
Family
ID=54269257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410139031.5A Active CN104971979B (en) | 2014-04-08 | 2014-04-08 | A kind of preparation method of chuck pipe bend |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104971979B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7141379B2 (en) * | 2019-10-08 | 2022-09-22 | 株式会社ユタカ技研 | Double pipe and its manufacturing method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788923A (en) * | 1980-11-19 | 1982-06-03 | Atsuji Tekko Kk | Method for manufacturing double tube nozzle |
| JPS5924519A (en) * | 1982-08-03 | 1984-02-08 | Nippon Steel Corp | Continuous manufacture of plurally-layered heat-insulating pipe |
| JPH08338571A (en) * | 1995-06-14 | 1996-12-24 | Kubota Corp | Different shape double pipes |
| JP2004344951A (en) * | 2003-05-23 | 2004-12-09 | Yamaha Motor Co Ltd | Multilayer pipe, manufacturing method and manufacturing device for multilayer pipe |
| DE10357344A1 (en) * | 2003-12-09 | 2005-07-14 | Daimlerchrysler Ag | Air gap insulated exhaust pipe, and method for its production |
| JP4396258B2 (en) * | 2003-12-18 | 2010-01-13 | 日産自動車株式会社 | Double pipe type exhaust pipe and its manufacturing method |
| RU2294807C1 (en) * | 2005-10-04 | 2007-03-10 | Общество с ограниченной ответственностью научно-производственное предприятие "Трубодеталь" (ООО НПП "Трубодеталь") | Apparatus for forming sharply bent branches |
| DE102010040249A1 (en) * | 2010-09-03 | 2012-03-08 | Man Diesel & Turbo Se | Double walled pipe |
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| Publication number | Publication date |
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| CN104971979A (en) | 2015-10-14 |
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