CN103883829A - Single-tube corrugation expansion joint - Google Patents
Single-tube corrugation expansion joint Download PDFInfo
- Publication number
- CN103883829A CN103883829A CN201410104758.XA CN201410104758A CN103883829A CN 103883829 A CN103883829 A CN 103883829A CN 201410104758 A CN201410104758 A CN 201410104758A CN 103883829 A CN103883829 A CN 103883829A
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- China
- Prior art keywords
- tube
- inner tube
- bellows
- wall
- reducer
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- 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.)
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- 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
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
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- 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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a single-tube corrugation expansion joint which is formed by an inner tube, a connecting tube, a corrugated tube, a heat insulation layer, a reducer tube, packing and an annular plate jointly. The inner tube is coaxially sleeved with the corrugated tube in a spaced mode, the small-diameter end of the reducer tube installed on the outer wall of the right end of the inner tube in a sleeved mode is connected with the right end of the corrugated tube in a sealed mode, the right end of the connecting tube installed on the outer wall of the left end of the inner tube in a sleeved mode is connected with the left end of the corrugated tube in a sealed mode, and the other end of the connecting tube is connected with the outer wall of a tube opening of the inner tube in a sealed mode. The sleeved sections of the inner tube and the corrugated tube are partitioned through the heat insulation layer to form protection to the corrugated tube, the position between the sleeved sections of the large section of the reducer tube and the inner tube is filled with the packing, the annular plate is connected with a tube opening of the large section of the reducer tube in a sealed mode, an inner hole of the annular plate is in clearance fit with the outer wall of the inner tube, and the expansion structure that the corrugated tube is linked with the reducer tube to axially move along the outer wall of the inner tube is formed. According to the single-tube corrugation expansion joint, the axial sleeved structure is simple, stretching is smooth, the expansion quantity is large, and the service life is long.
Description
Technical field
The present invention relates to a kind of pipe safety device, specifically, the present invention relates to a kind of single tube FlexbleJoint of slim-lined construction.
Background technique
Carbon black manufacturing industry is special because of operating mode, and the boiler specification configuring is generally very large, and the heat transferring medium of use is 700 ℃ of left and right, and with the high-temperature heat-exchanging bore of boiler matching more than 2000mm, more than the super 10000mm of length.The also corresponding length of heat exchanging tube of this kind of slim-lined construction high-temperature heat-exchanging configuration, due to overlength heat exchanging tube with high temperature media heat transfer process in produce larger distortion, wherein axial deflection maximum, heat exchanging tube axial deformation must bring larger end thrust or axial displacement.Tubular heat exchanger is made up of the identical heat exchanging tube side by side of gang's caliber, in heat transfer process, the end thrust of every heat exchanging tube generation is all towards a direction, integrated end thrust heat exchanger forms great impact, easily causes the even heat exchanger explosive accident of ftractureing of heat exchanger end plate.In engineering, for fear of there is this type of accident, conventionally, at the equipped compensator that can make nose balance of heat exchanging tube end, absorb axial displacement with this.Although prior art compensator have a lot of structural types, because of the reason such as nose balance amount is relatively little, axial stiffness is large and heatproof is inadequate, be all not suitable for carbon black manufacturing industry directly supporting.
Summary of the invention
The present invention, mainly for the deficiencies in the prior art, proposes one simple and reasonable for structure, and axial stiffness is little, compensation rate is large and resistant to elevated temperatures single tube FlexbleJoint.
The present invention is achieved through the following technical solutions technical goal.
Single tube FlexbleJoint, it is made up of jointly inner tube, adapter, bellows, thermal-protective coating, reducer pipe, filler and ring flat-plate.Described bellows and inner tube concentric gap are nested, the reducer pipe being set with on inner tube right-hand member outer wall is tightly connected with smaller diameter end and bellows right-hand member, the adapter being set with on inner tube left end outer wall is tightly connected with right-hand member and bellows left end, and the other end of adapter and inner tube mouth of pipe outer wall are tightly connected.Its improvements are: described inner tube bore is 89mm～159mm, and the elongated straight tube of the super 800mm of length is separated by and is formed the protection structure to bellows by thermal-protective coating between inner tube and bellows fit section.Described reducer pipe enlarged diameter section is cylindrical tube, plug filling material between cylindrical tube and inner tube shrinking section, ring flat-plate and the reducer pipe major diameter mouth of pipe are tightly connected, and ring flat-plate endoporus and outer wall of inner tube Spielpassung form the collocation structure of bellows interlock reducer pipe along outer wall of inner tube axial motion.
In said structure, thermal-protective coating is to be woven into blanket shape with alumina-silicate ceramic fibre to be wrapped on outer wall of inner tube, and filler is to be woven into rope form with alumina-silicate ceramic fibre to be entangled in reducer pipe inner chamber, bellows moulding with 2～3 layers of common rolling of thin plate.
The present invention compared with prior art, has following good effect:
1, axially fit linkage structure is simple, makes easily;
2, flexible bellows-sheathed is contained in rigidity inner tube, and capable of expansion and contraction, compensation rate is large;
3, between inner tube and bellows, be separated by with thermal-protective material, avoid bellows to cross thermal run away;
4, not pressure-bearing of bellows, only does axial elasticity distortion, uses safety, and the life-span is long.
Accompanying drawing explanation
Fig. 1 is structural profile schematic diagram of the present invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
The FlexbleJoint of single tube shown in Fig. 1, it is made up of jointly inner tube 1, adapter 2, bellows 3, thermal-protective coating 4, reducer pipe 5, filler 6 and ring flat-plate 7.Described bellows 3 is to form flexible pipe with the common rolling of multilayer sheet with equal thickness, in the present embodiment, makes bellows 3 with 3 layers of sheet with equal thickness.Inner tube 1 is steel pipe, and bellows 3 is nested with inner tube 1 concentric gap.The reducer pipe 5 being set with on inner tube 1 right-hand member outer wall is tightly connected with smaller diameter end and bellows 3, and the adapter 2 being set with on inner tube 1 left end outer wall is tightly connected with right-hand member and bellows 3, and the other end and inner tube 1 mouth of pipe outer wall of adapter 2 are tightly connected.Inner tube 1 bore in the present embodiment is 101.3mm; the slender pipe of long 11000mm; between inner tube 1 and bellows 3 shrinking sections, be separated by by thermal-protective coating 4; thermal-protective coating 4 is that one alumina-silicate ceramic fibre is woven into blanket shape; outer being rolled on inner tube 1 outer wall of thermal-protective coating 4 forms the protection structure to bellows 3, avoids bellows 3 to cross thermal run away.Described reducer pipe 5 enlarged diameter sections are cylindrical tube, plug filling material 6 between cylindrical tube and inner tube 1 shrinking section.Filler 6 use alumina-silicate ceramic fibres in the present embodiment are woven into rope form, then be entangled in reducer pipe 5 inner chambers, in order to prevent that filler 6 scatters and disappears, at reducer pipe 5 major diameter mouth of pipe place welding ring flat-plates 7, ring flat-plate 7 endoporus and inner tube 1 outer wall Spielpassung, this linkage structure realizes bellows 3 collocation structure of reducer pipe 5 along inner tube 1 outer wall axial motion that link.When actual use, inner tube 1 right-hand member and heat exchanging tube are tightly connected, and reducer pipe 5 major diameter outer ends are sleeved in heat exchanger tube sheet and are welded to connect.In the time that heat exchanger is subject to heat transferring medium temperature difference influence, the axial displacement producing links reducer pipe 5 and bellows 3 along inner tube 1 outer wall axial motion by tube sheet, and this axial motion is capable of expansion and contraction, and compensation rate is large, in the present embodiment, axially compensation rate reaches 800mm, exceeds 4 times than prior art.In addition, not pressure-bearing of bellows 3 in the present invention, only does axial elasticity distortion, so use safety, life-span long.
Claims (4)
1. a single tube FlexbleJoint, it is made up of jointly inner tube (1), adapter (2), bellows (3), thermal-protective coating (4), reducer pipe (5), filler (6) and ring flat-plate (7); Described bellows (3) is nested with inner tube (1) concentric gap, the reducer pipe (5) being set with on inner tube (1) right-hand member outer wall is tightly connected with smaller diameter end and bellows (3) right-hand member, the adapter (2) being set with on inner tube (1) left end outer wall is tightly connected with right-hand member and bellows (3) left end, and the other end and inner tube (1) mouth of pipe outer wall of taking over (2) are tightly connected; It is characterized in that: described inner tube (1) bore is 89mm～159mm that the elongated straight tube of the super 800mm of length is separated by and is formed the protection structure to bellows (3) by thermal-protective coating (4) between inner tube (1) and bellows (3) shrinking section; Described reducer pipe (5) enlarged diameter section is cylindrical tube, plug filling material (6) between cylindrical tube and inner tube (1) shrinking section, ring flat-plate (7) is tightly connected with reducer pipe (5) the major diameter mouth of pipe, ring flat-plate (7) endoporus and inner tube (1) outer wall Spielpassung, form the collocation structure of bellows (3) interlock reducer pipe (5) along inner tube (1) outer wall axial motion.
2. single tube FlexbleJoint according to claim 1, is characterized in that: described thermal-protective coating (4) is to be woven into blanket shape with alumina-silicate ceramic fibre to be wrapped on inner tube (1) outer wall.
3. single tube FlexbleJoint according to claim 1, is characterized in that: described filler (6) is to be woven into rope form with alumina-silicate ceramic fibre to be entangled in reducer pipe (5) inner chamber.
4. single tube FlexbleJoint according to claim 1, is characterized in that: described bellows (3) moulding with 2～3 layers of common rolling of sheet with equal thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104758.XA CN103883829A (en) | 2014-03-20 | 2014-03-20 | Single-tube corrugation expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104758.XA CN103883829A (en) | 2014-03-20 | 2014-03-20 | Single-tube corrugation expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103883829A true CN103883829A (en) | 2014-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410104758.XA Pending CN103883829A (en) | 2014-03-20 | 2014-03-20 | Single-tube corrugation expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190188A (en) * | 2016-08-30 | 2016-12-07 | 无锡金龙石化冶金设备制造有限公司 | A kind of raw coke over gas riser residual heat recovery device |
| CN109462753A (en) * | 2018-11-19 | 2019-03-12 | 视联动力信息技术股份有限公司 | A kind of view is networked more meeting test macros and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202239Y (en) * | 1994-07-28 | 1995-06-28 | 广东省佛山市澜石膨胀节厂 | External-pressure expansion section for high-temp. and high-pressure long pipe |
| CN1202959A (en) * | 1995-11-28 | 1998-12-23 | 国际壳牌研究有限公司 | Flexible joint |
| DE202005021568U1 (en) * | 2005-08-12 | 2008-09-18 | Kme Germany Ag | Gas seal for blast furnaces |
| CN201944475U (en) * | 2011-01-28 | 2011-08-24 | 北京兴达波纹管有限公司 | Abrasion-resistant separating corrugation expansion joint |
| CN203730992U (en) * | 2014-03-20 | 2014-07-23 | 江苏曙光压力容器有限公司 | Single-pipe corrugated compensator |
-
2014
- 2014-03-20 CN CN201410104758.XA patent/CN103883829A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202239Y (en) * | 1994-07-28 | 1995-06-28 | 广东省佛山市澜石膨胀节厂 | External-pressure expansion section for high-temp. and high-pressure long pipe |
| CN1202959A (en) * | 1995-11-28 | 1998-12-23 | 国际壳牌研究有限公司 | Flexible joint |
| DE202005021568U1 (en) * | 2005-08-12 | 2008-09-18 | Kme Germany Ag | Gas seal for blast furnaces |
| CN201944475U (en) * | 2011-01-28 | 2011-08-24 | 北京兴达波纹管有限公司 | Abrasion-resistant separating corrugation expansion joint |
| CN203730992U (en) * | 2014-03-20 | 2014-07-23 | 江苏曙光压力容器有限公司 | Single-pipe corrugated compensator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190188A (en) * | 2016-08-30 | 2016-12-07 | 无锡金龙石化冶金设备制造有限公司 | A kind of raw coke over gas riser residual heat recovery device |
| CN109462753A (en) * | 2018-11-19 | 2019-03-12 | 视联动力信息技术股份有限公司 | A kind of view is networked more meeting test macros and method |
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| PB01 | Publication | ||
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Application publication date: 20140625 |