CN106969228A - A kind of nested external pressure FlexbleJoint - Google Patents
A kind of nested external pressure FlexbleJoint Download PDFInfo
- Publication number
- CN106969228A CN106969228A CN201710379857.2A CN201710379857A CN106969228A CN 106969228 A CN106969228 A CN 106969228A CN 201710379857 A CN201710379857 A CN 201710379857A CN 106969228 A CN106969228 A CN 106969228A
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- CN
- China
- Prior art keywords
- pipe
- big
- small
- connector
- outer tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
Abstract
The invention discloses a kind of nested external pressure FlexbleJoint, one end of long end pipe is connected with one end of short end pipe, small corrugated pipe is set on the outer wall of long end pipe, it is fixedly connected between two adjacent small corrugated pipes by the first connector, it is arranged on the first connector on the right side of small corrugated pipe to be fixedly connected with the right-hand member of the first position-limiting tube, the first position-limiting tube is set in the outside of small corrugated pipe；The outer cover of small corrugated pipe is provided with small outer tube, bellows-sheathed is located on the outer wall of small outer tube, it is fixedly connected between two adjacent big ripple pipes by the second connector, it is arranged on the second connector on the right side of big ripple pipe to be fixedly connected with the right-hand member of the second position-limiting tube, the second position-limiting tube is set in the outside of big ripple pipe；The outer cover of big ripple pipe is provided with big outer tube；The total length of small corrugated pipe is more than the total length of big ripple pipe, invention increases nose balance amount, reduces axial rigidity, reduces the thrust in motion.
Description
Technical field
The present invention relates to metal corrugation compensator, more particularly to a kind of box-like External Pressure Type FlexbleJoint of bellows-sheathed.
Background technology
Corrugated expansion joint is widely used on outdoor media-carrying lines as pressure pipeline element.Such as oil, day
The pipelines such as right gas, northern central heating pipe, jet chimney of integrated mill etc..Due to by it is outdoor throughout the year and day and night temperature
Big and pipeline interior media produces the influence of the factors such as heat, and situation that is elongated or reducing, specialty occurs in pipeline axial direction
It is upper to be axial expansion amount, occur that " snakelike shape " is deformed if taking no action to pipeline, explosion occurs in pipeline when serious
Security incident.Metal corrugation compensator according to pipeline actual condition generally from relevant parameter is to solve pipeline to expand with heat and contract with cold
Situation.But some engineerings are because design parameter is inaccurate or foundation engineering is carried out rear body design and changed, ripple
The nose balance amount of pipe compensator adds nearly 50% than original design, but the length space reserved to FlexbleJoint is
The requirement of new parameter can not be reached, foundation engineering there can not be a bit change.It is very intractable analogue occur.
The content of the invention
The invention provides a kind of nested external pressure FlexbleJoint, purpose is exactly to keep for corrugated expansion joint space
In the case of wretched insufficiency, the problem of solving increase compensation of pipeline amount.
The technical scheme is that：A kind of nested FlexbleJoint, one end of long end pipe connects with one end of short end pipe
Logical, small corrugated pipe is set on the outer wall of long end pipe, is fixedly connected between two adjacent small corrugated pipes by the first connector,
It is arranged on the first connector on the right side of small corrugated pipe to be fixedly connected with the right-hand member of the first position-limiting tube, the first position-limiting tube is set in small echo
The outside of line pipe；The outer cover of small corrugated pipe is provided with small outer tube, and bellows-sheathed is located on the outer wall of small outer tube, and adjacent two
It is fixedly connected between individual big ripple pipe by the second connector, the second connector and second being arranged on the right side of big ripple pipe are spacing
The right-hand member of pipe is fixedly connected, and the second position-limiting tube is set in the outside of big ripple pipe；The outer cover of big ripple pipe is provided with big outer tube；
The total length of small corrugated pipe is more than the total length of big ripple pipe, the trough of the crest correspondence big ripple pipe of small corrugated pipe, ripplet
The crest of the trough correspondence big ripple pipe of pipe.
Further, the upper end and the inwall of small outer tube for being arranged on the first connector of small outer tube left and right ends are fixed
Connection, the lower end for being arranged on the first connector of small outer tube left and right ends is fixedly connected with the outer wall of long end pipe.
Further, company is fixed in the upper end of the second connector and the inwall of big outer tube for being arranged on big outer tube left end
Connect, the lower end for being arranged on the second connector of big outer tube left end is fixedly connected with the outer wall of small outer tube.
Further, company is fixed in the upper end of the 3rd connector and the inwall of big outer tube for being arranged on big outer tube right-hand member
Connect, the lower end for being arranged on the 3rd connector of big outer tube right-hand member is fixedly connected with the outer wall of short end pipe.
Further, the length of first position-limiting tube is the half of the length of small corrugated pipe.
Further, the length of second position-limiting tube is the half of the length of big ripple pipe.
Further, the wall thickness of the small corrugated pipe and big ripple pipe is 0.2mm-0.5mm.
Further, the socket of the small corrugated pipe and big ripple pipe constitutes multilayer corrugated pipe, the number of plies of multilayer corrugated pipe
Between 2 ~ 10 layers.
Beneficial effects of the present invention are：
1st, fit is carried out using the bellows of two different sizes of size, in the case of the constant installation length of former headspace,
Nose balance amount is 1.5 times of conventional compensator, and the installation length of conventional products is shortened on the premise of compensation rate is ensured;
2nd, using multilayer thin-walled scheme, on the premise of ensuring to bear compression resistance, axial rigidity is reduced, reduces pushing away in motion
Power.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings, and the present embodiment is not constituted to the present invention
Limitation.
A kind of nested external pressure FlexbleJoint, as shown in figure 1, including long end pipe 1, short end pipe 2, flange 3, small corrugated pipe
4th, the first connector 5, the first position-limiting tube 6, small outer tube 7, big ripple pipe 8, the second connector 9, the second position-limiting tube 10, big overcoat
Pipe 11, the 3rd connector 12.
One end of long end pipe 1 is connected with one end of short end pipe 2, and the other end of long end pipe 1 is provided with flange 3, short end pipe 2
The other end is provided with flange 3.Small corrugated pipe 4 is set on the outer wall of long end pipe 1, is passed through between two adjacent small corrugated pipes 4
First connector 5 is fixedly connected, and the right-hand member of the first connector 5 and the first position-limiting tube 6 that are arranged on the right side of small corrugated pipe 4, which is fixed, to be connected
Connect, the first position-limiting tube 6 is set in the outside of small corrugated pipe 4, the left end of the first position-limiting tube 6 is arranged on the centre bit of small corrugated pipe 4
Put, the length of the first position-limiting tube 6 is the half of the length of small corrugated pipe 4.
The outer cover of small corrugated pipe 4 is provided with small outer tube 7, is arranged on the first connector 5 of the small left and right ends of outer tube 7
Upper end is fixedly connected with the inwall of small outer tube 7, is arranged on lower end and the length of the first connector 5 of the small left and right ends of outer tube 7
The outer wall of end pipe 1 is fixedly connected, so that small corrugated pipe 4 is enclosed in small outer tube 7.
Big ripple pipe 8 is set on the outer wall of small outer tube 7, passes through the second connection between two adjacent big ripple pipes 8
Part 9 is fixedly connected, and the second connector 9 for being arranged on the right side of big ripple pipe 8 is fixedly connected with the right-hand member of the second position-limiting tube 10, and second
Position-limiting tube 10 is set in the outside of big ripple pipe 8, and the left end of the second position-limiting tube 10 is arranged on the center of big ripple pipe 8, the
The length of two position-limiting tubes 10 is the half of the length of big ripple pipe 8.
The outer cover of big ripple pipe 8 be provided with big outer tube 11, be arranged on the big left end of outer tube 11 the second connector 9 it is upper
End is fixedly connected with the inwall of big outer tube 11, is arranged on the lower end of the second connector 9 of the big left end of outer tube 11 and small overcoat
The outer wall of pipe 7 is fixedly connected；It is arranged on upper end and the inwall of big outer tube 11 of the 3rd connector 12 of the big right-hand member of outer tube 11
It is fixedly connected, the lower end for being arranged on the 3rd connector 12 of the big right-hand member of outer tube 11 is fixedly connected with the outer wall of short end pipe 2.
The external diameter of small corrugated pipe 4 is less than the internal diameter of big ripple pipe 8, so that small corrugated pipe 4 is nested into big ripple pipe 8,
The length of a bellows is reduced, the overall length of FlexbleJoint can be just arranged in the position that pipeline is reserved, so both
Engineering design requirements are met, while solving the restricted problem of installation length.
The total length of small corrugated pipe 4 is more than the total length of big ripple pipe 8, the crest correspondence big ripple pipe 8 of small corrugated pipe 4
Trough, the crest of the trough correspondence big ripple pipe 8 of small corrugated pipe 4, keeps the end face significant surface of small corrugated pipe 4 and big ripple pipe 8
Product is identical, keeps axial rigidity consistent with compression resistance, and small corrugated pipe 4 is synchronized with the movement with big ripple pipe 8 when being axially moved so that
Small corrugated pipe 4 and the counter motion at equal speeds of big ripple pipe 8 during exercise.
Small corrugated pipe 4 and big ripple pipe 8 can use 316L, and 321,304 stainless steels be made, small corrugated pipe 4 with it is big
Ripple number on bellows 8 is 4 ~ 20, and the socket of small corrugated pipe 4 and big ripple pipe 8 constitutes multilayer corrugated pipe, multilayer corrugated
The number of plies of pipe is between 2 ~ 10 layers.The wall thickness of small corrugated pipe 4 and big ripple pipe 8 is 0.2mm ~ 0.5mm.
The above described is only a preferred embodiment of the present invention, being not used in the limitation present invention, those skilled in the art can
In the essence and protection domain of the present invention, to make various modifications or equivalent substitution to the present invention, this modification or equally replace
Change and also should be regarded as in the protection domain of technical solution of the present invention.
Claims (8)
1. a kind of nested external pressure FlexbleJoint, it is characterised in that：One end of long end pipe is connected with one end of short end pipe, small echo
Line pipe sleeve is located on the outer wall of long end pipe, is fixedly connected, is arranged on by the first connector between two adjacent small corrugated pipes
The first connector on the right side of small corrugated pipe is fixedly connected with the right-hand member of the first position-limiting tube, and the first position-limiting tube is set in small corrugated pipe
It is outside；The outer cover of small corrugated pipe is provided with small outer tube, and bellows-sheathed is located on the outer wall of small outer tube, adjacent two big ripple
It is fixedly connected between line pipe by the second connector, the second connector being arranged on the right side of big ripple pipe and the right side of the second position-limiting tube
End is fixedly connected, and the second position-limiting tube is set in the outside of big ripple pipe；The outer cover of big ripple pipe is provided with big outer tube；Ripplet
The total length of pipe is more than the total length of big ripple pipe, the trough of the crest correspondence big ripple pipe of small corrugated pipe, the ripple of small corrugated pipe
The crest of paddy correspondence big ripple pipe.
2. a kind of nested external pressure FlexbleJoint according to claim 1, it is characterised in that：It is arranged on small outer tube left
The upper end of first connector at right two ends is fixedly connected with the inwall of small outer tube, is arranged on the first of small outer tube left and right ends
The lower end of connector is fixedly connected with the outer wall of long end pipe.
3. a kind of nested external pressure FlexbleJoint according to claim 1, it is characterised in that：It is arranged on big outer tube left
The upper end of second connector at end is fixedly connected with the inwall of big outer tube, is arranged on the second connector of big outer tube left end
Lower end is fixedly connected with the outer wall of small outer tube.
4. a kind of nested external pressure FlexbleJoint according to claim 3, it is characterised in that：It is arranged on big outer tube right
The upper end of 3rd connector at end is fixedly connected with the inwall of big outer tube, is arranged on the 3rd connector of big outer tube right-hand member
Lower end is fixedly connected with the outer wall of short end pipe.
5. a kind of nested external pressure FlexbleJoint according to claim 1, it is characterised in that：First position-limiting tube
Length is the half of the length of small corrugated pipe.
6. a kind of nested external pressure FlexbleJoint according to claim 1, it is characterised in that：Second position-limiting tube
Length is the half of the length of big ripple pipe.
7. a kind of nested external pressure FlexbleJoint according to claim 1, it is characterised in that：The small corrugated pipe with it is big
The wall thickness of bellows is 0.2mm ~ 0.5mm.
8. a kind of nested external pressure FlexbleJoint according to claim 1, it is characterised in that：The small corrugated pipe with it is big
The socket of bellows constitutes multilayer corrugated pipe, and the number of plies of multilayer corrugated pipe is between 2 ~ 10 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379857.2A CN106969228A (en) | 2017-05-25 | 2017-05-25 | A kind of nested external pressure FlexbleJoint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379857.2A CN106969228A (en) | 2017-05-25 | 2017-05-25 | A kind of nested external pressure FlexbleJoint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969228A true CN106969228A (en) | 2017-07-21 |
Family
ID=59327129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710379857.2A Pending CN106969228A (en) | 2017-05-25 | 2017-05-25 | A kind of nested external pressure FlexbleJoint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106969228A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202280993U (en) * | 2011-09-02 | 2012-06-20 | 廊坊开发区首都航天波纹管厂 | Novel three-dimensional straight pipe pressure balance type corrugated expansion joint |
| CN103307402A (en) * | 2013-06-27 | 2013-09-18 | 江苏博格东进管道设备有限公司 | Straight pipe outer pressure balance type ripple compensator |
| KR20130104303A (en) * | 2012-03-13 | 2013-09-25 | 주식회사 그렉스전자 | Flexible duct connector |
| CN203963366U (en) * | 2014-07-04 | 2014-11-26 | 北京兴达波纹管有限公司 | Full external pressure straight-tube pressure balanced compensator |
| CN105650396A (en) * | 2016-04-06 | 2016-06-08 | 中科合成油工程股份有限公司 | Straight-tube pressure-balance type bellows expansion joint |
| CN205991278U (en) * | 2016-08-05 | 2017-03-01 | 洛阳双瑞特种装备有限公司 | A kind of external pressure straight-pipe pressure balanced expansion joint for absorbing compound displacement |
| CN206770855U (en) * | 2017-05-25 | 2017-12-19 | 江苏省埃迪机电设备实业有限公司 | A kind of nested external pressure FlexbleJoint |
-
2017
- 2017-05-25 CN CN201710379857.2A patent/CN106969228A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202280993U (en) * | 2011-09-02 | 2012-06-20 | 廊坊开发区首都航天波纹管厂 | Novel three-dimensional straight pipe pressure balance type corrugated expansion joint |
| KR20130104303A (en) * | 2012-03-13 | 2013-09-25 | 주식회사 그렉스전자 | Flexible duct connector |
| CN103307402A (en) * | 2013-06-27 | 2013-09-18 | 江苏博格东进管道设备有限公司 | Straight pipe outer pressure balance type ripple compensator |
| CN203963366U (en) * | 2014-07-04 | 2014-11-26 | 北京兴达波纹管有限公司 | Full external pressure straight-tube pressure balanced compensator |
| CN105650396A (en) * | 2016-04-06 | 2016-06-08 | 中科合成油工程股份有限公司 | Straight-tube pressure-balance type bellows expansion joint |
| CN205991278U (en) * | 2016-08-05 | 2017-03-01 | 洛阳双瑞特种装备有限公司 | A kind of external pressure straight-pipe pressure balanced expansion joint for absorbing compound displacement |
| CN206770855U (en) * | 2017-05-25 | 2017-12-19 | 江苏省埃迪机电设备实业有限公司 | A kind of nested external pressure FlexbleJoint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |
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| RJ01 | Rejection of invention patent application after publication |