CN106322043A - Connecting method for titanium corrugated pipe expansion joint and dissimilar metal pipeline - Google Patents
Connecting method for titanium corrugated pipe expansion joint and dissimilar metal pipeline Download PDFInfo
- Publication number
- CN106322043A CN106322043A CN201610709003.1A CN201610709003A CN106322043A CN 106322043 A CN106322043 A CN 106322043A CN 201610709003 A CN201610709003 A CN 201610709003A CN 106322043 A CN106322043 A CN 106322043A
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- Prior art keywords
- ring
- titanium
- pressure ring
- gland
- dissimilar metal
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Classifications
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention provides a connecting method for a titanium corrugated pipe expansion joint and a dissimilar metal pipeline. According to the connecting method, through a packing seal structure, only a short cylindrical section connected with a corrugated pipe needs to be made of titanium, and the pipeline connected with the titanium corrugated pipe expansion joint does not need to be made of titanium. By the adoption of the structure, the number of required flanges can be effectively reduced, and welding between titanium and dissimilar metal is avoided, so that the producing and manufacturing cost of the expansion joint is reduced, and application and popularization of titanium corrugated pipe are facilitated.
Description
Technical field
The invention belongs to bellows expansion joint applied technical field, be specially a kind of titanium bellows expansion joint and dissimilar metal
The connected mode of pipeline.
Background technology
At present the application form of titanium bellows expansion joint has three kinds, one be pipeline be titanium pipeline, expansion joint removes corrugated tube
Be designed to titanium material, other structural member as end pipe and with end sealing of tube structural member etc. be intended to use titanium material, this design with pipe
There is not the Welding Problems of dissimilar metal in road, but the manufacturing cost of whole pipeline and expansion joint will be greatly improved, such as Fig. 1 when connecting
Shown in.Another kind of attachment structure is lap joint flange structure, as in figure 2 it is shown, i.e. corrugated tube is titanium material, and the end pipe being connected with corrugated tube
Being also adopted by titanium material, end pipe end welding titanium welding neck collar, then be connected with pipeline by flange, this structural requirement pipeline uses flange
Type of attachment, and titanium short tube and welding neck collar material be titanium material, can be greatly increased the cost of expansion joint equally.The third is then titanium
Corrugated tube is connected with titanium flange welding, as it is shown on figure 3, this design also requires that pipeline uses Flange joint form, titanium flange is also
The manufacturing cost of expansion joint can be increased.
Summary of the invention
In order to solve titanium bellows expansion joint and dissimilar metal pipeline connectivity problem, reduce the use of titanium material, meet big logical
Footpath selection for pipeline titanium expansion joint, reduces the use cost of titanium bellows expansion joint, the invention provides a kind of titanium bellows expansion
Joint and the connected mode of dissimilar metal pipeline, by packing seal structure, the short shell ring being only connected with corrugated tube needs to use
Titanium material, the pipeline being connected with titanium bellows expansion joint needs not be titanium material.This structure is effectively reduced the use of flange, also
Avoid the Welding Problems of titanium material and different metal materials, thus reduce the manufacturing cost of expansion joint, beneficially titanium ripple
The popularization and application of pipe.
For realizing above-mentioned technical purpose, be the technical scheme is that a kind of titanium bellows expansion joint and different kinds of metal tubes
The connected mode in road, the termination of titanium corrugated tube is connected with titanium short tube, fixes welded limiting block on titanium short tube, and positive stop leads to
Crossing packing seal connector to be connected with dissimilar metal pipeline, positive stop is for transmitting the thermal expansion curve of dissimilar metal pipeline extremely
Titanium corrugated tube, packing seal connector is made up of airtight and watertight padding, pressure ring and gland, and pressure ring and gland are set on titanium short tube, pressure
The side of ring with lead that kind of metallic conduit is fixing to be connected, its opposite side is connected ring connection with pressure ring, pressure ring, gland and titanium short tube it
Between surround a ring packing chamber, be filled with airtight and watertight padding at ring packing intracavity, the opposite side of gland is close to positive stop.
Pressure ring of the present invention is connected ring, pressure ring direct tube section and pressure ring end ring by pressure ring and forms, and described gland is by pressing
Lid connects ring and gland direct tube section composition, and pressure ring connection ring and pressure ring end ring are connected to the two ends of pressure ring direct tube section, pressure ring
End ring is fixing with dissimilar metal pipeline to be connected, and pressure ring connection ring is connected ring with gland and is bolted, and gland direct tube section inserts
Pressure ring direct tube section, gland connects ring and is close to spacing near the side of positive stop, by pressure ring end ring, pressure ring direct tube section, gland
Direct tube section and titanium short tube surround a ring packing chamber.
It is provided with gap between pressure ring of the present invention and titanium short tube.
It is provided with gap between gland of the present invention and titanium short tube.
Pressure ring of the present invention and gland are attached by screw bolt and nut.
The side of pressure ring of the present invention is welded to connect with leading kind of a metallic conduit.
Airtight and watertight padding of the present invention is flexible filler ring.
The cross section in ring packing chamber of the present invention is rectangle.
The effect of the present invention is:
1, a kind of titanium bellows expansion joint uses static packing seal structure with the connected mode of dissimilar metal pipeline, it is achieved xenogenesis
Metallic conduit and the connection of titanium bellows expansion joint, eliminate titanium bellows expansion joint and dissimilar metal pipeline need Flange joint
A difficult problem, it is provided that titanium bellows expansion joint application new way in the duct.
2, using static packing seal structure, the thrust fastened in advance by gland bolt makes filler and core pipe (titanium
Short tube) and outer sleeve (pressure ring direct tube section) radially produce side force, thus realize between dissimilar metal pipeline and titanium short tube
It is tightly connected.
3, dissimilar metal pipeline thermal expansion curve is realized transmitting with corrugated tube by positive stop, and thermal expansion curve is by corrugated tube
Compensate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first prior art；
Fig. 2 is the structural representation of the second prior art；
Fig. 3 is the structural representation of the third prior art；
Fig. 4 is the structural representation of the present invention；
Fig. 5 is the structural representation in the ring packing chamber of the present invention；
In figure: 1, titanium corrugated tube, 2, expansion joint titanium flange, 3, dissimilar metal pipe flange, 4, titanium short tube, 5, titanium welding neck collar, 6, titanium
Pipeline, 7, dissimilar metal pipeline, 8, pressure ring, 801, pressure ring connect ring, 802, pressure ring direct tube section, 803, pressure ring end ring, 9, seal
Filler, 10, gland, 101, gland connect ring, 102, gland direct tube section, 11, screw bolt and nut, 12, positive stop, 13, annular
Packing cavity.
Detailed description of the invention
As shown in Figure 4, titanium corrugated tube 1 and titanium short tube 4 constitute titanium bellows expansion joint assembly, pressure ring 8, airtight and watertight padding 9, pressure
Lid 10, screw bolt and nut 11, titanium short tube 4(core pipe) the static sealing filling-material structure that constitutes, at titanium short tube 4(core pipe) on weld limit
Position block 12.During work, the thermal expansion curve of pipeline is delivered to limit by pressure ring 8, airtight and watertight padding 9, bolt and nut 11, gland 10
Position block 12 and the Welding Structure of titanium short tube 4, then realized the compensation of thermal expansion curve by corrugated tube.Additionally this static sealing is filled out
Material structure is from compressing structure, and during work, under the effect of thermal expansion of pipeline displacement, packing seal structure realizes from compressing.
Pressure ring is connected ring, pressure ring direct tube section and pressure ring end ring by pressure ring and forms, and described gland is connected ring and pressure by gland
Lid direct tube section forms, and pressure ring end ring is fixing with dissimilar metal pipeline to be connected, and pressure ring connects ring and is connected ring flange connection, pressure with gland
Lid direct tube section is connected one end of ring with gland, and is arranged on pressure ring connection ring and the lower section of pressure ring direct tube section, and gland connects ring
The other end is fixed be connected with power and expansion displacement transmission block, and pressure ring connects ring and pressure ring end ring is connected to pressure ring direct tube section
Two ends, and between titanium short tube, surround an annular chamber, one end that annular chamber is corresponding is provided with gland, and gland cross section is L-shaped, L-shaped
The bottom of gland is inserted in annular chamber, pressure ring end ring, pressure ring direct tube section, gland direct tube section and titanium short tube surround an annular and fill out
Material chamber.
Use airtight and watertight padding carry out packing seal, filler to have enough chemical stabilities, not pollution medium, filler not by
Medium swelling, filler is not dissolved by medium, and filler itself does not corrode sealing surface, and self-lubricating property is good, wear-resisting, coefficient of friction
Little；Airtight and watertight padding to have certain elasticity, can produce certain radial force and closely contact with titanium short tube under thrust effect.
Airtight and watertight padding can use carbon packing ring or politef packing, and the cross section of filler is square, it is possible to be processed into
Wedge shape or V-arrangement, multiple packing ring phase splits, composition cross section is rectangular airtight and watertight padding, the airtight and watertight padding of this kind of shape, in pressure
Under the effect of lid power, filler radially produces side force with core pipe (titanium short tube) and outer sleeve (pressure ring direct tube section), thus realizes
Being tightly connected between dissimilar metal pipeline and titanium short tube.
Claims (8)
1. titanium bellows expansion joint and a connected mode for dissimilar metal pipeline, the termination of titanium corrugated tube (1) and titanium short tube (4)
Connect, it is characterised in that: at the upper fixing welded limiting block (12) of titanium short tube (4), positive stop (12) is by packing seal even
Fitting is connected with dissimilar metal pipeline (7), and packing seal connector is made up of airtight and watertight padding (9), pressure ring (8) and gland (10),
Pressure ring (8) and gland (10) are set on titanium short tube (4), and the side of pressure ring (8) is fixing with dissimilar metal pipeline (7) to be connected, its
Opposite side is connected with the bolt of gland (10), and gland (10) is close to positive stop (12), short with titanium at pressure ring (8), gland (10)
Surround a ring packing chamber (13) between pipe (4), in ring packing chamber (13), be filled with airtight and watertight padding (9).
A kind of titanium bellows expansion joint the most as claimed in claim 1 and the connected mode of dissimilar metal pipeline, it is characterised in that:
Described pressure ring (8) is connected ring (801), pressure ring direct tube section (802) and pressure ring end ring (803) by pressure ring and forms, described gland
(10) being connected ring (101) by gland and gland direct tube section (102) forms, pressure ring connects ring (801) and pressure ring end ring (803) difference
Being connected to the two ends of pressure ring direct tube section (802), pressure ring end ring (803) is fixing with dissimilar metal pipeline (7) to be connected, and pressure ring connects ring
(801) being connected ring (101) bolt to connect with gland, gland direct tube section (102) is connected one end of ring (101), and arranges with gland
Connecting ring (801) and the lower section of pressure ring direct tube section (802) at pressure ring, gland connects the other end of ring (101) against positive stop
(12), pressure ring end ring (803), pressure ring direct tube section (802), gland direct tube section (102) and titanium short tube (4) surround an annular to fill out
Material chamber (13).
A kind of titanium bellows expansion joint the most as claimed in claim 1 and the connected mode of dissimilar metal pipeline, it is characterised in that:
It is provided with gap between described pressure ring (8) and titanium short tube (4).
A kind of titanium bellows expansion joint the most as claimed in claim 1 and the connected mode of dissimilar metal pipeline, it is characterised in that:
It is provided with gap between described gland (10) and titanium short tube (4).
A kind of titanium bellows expansion joint the most as claimed in claim 1 and the connected mode of dissimilar metal pipeline, it is characterised in that:
Described pressure ring (8) and gland (10) are attached by screw bolt and nut (11).
A kind of titanium bellows expansion joint the most as claimed in claim 1 and the connected mode of dissimilar metal pipeline, it is characterised in that:
The side of described pressure ring (8) is welded to connect with leading kind of a metallic conduit (7).
A kind of titanium bellows expansion joint the most as claimed in claim 1 and the connected mode of dissimilar metal pipeline, it is characterised in that:
Described airtight and watertight padding (9) is flexible filler ring.
A kind of titanium bellows expansion joint the most as claimed in claim 1 and the connected mode of dissimilar metal pipeline, it is characterised in that:
The cross section in described ring packing chamber (13) is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610709003.1A CN106322043B (en) | 2016-08-24 | 2016-08-24 | A kind of connection mode of titanium bellows expansion joint and dissimilar metal pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610709003.1A CN106322043B (en) | 2016-08-24 | 2016-08-24 | A kind of connection mode of titanium bellows expansion joint and dissimilar metal pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106322043A true CN106322043A (en) | 2017-01-11 |
| CN106322043B CN106322043B (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610709003.1A Active CN106322043B (en) | 2016-08-24 | 2016-08-24 | A kind of connection mode of titanium bellows expansion joint and dissimilar metal pipeline |
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| Country | Link |
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| CN (1) | CN106322043B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904378A (en) * | 1995-11-28 | 1999-05-18 | Shell Oil Company | Flexible joint |
| CN2539046Y (en) * | 2001-11-15 | 2003-03-05 | 上海国电燃机技术工程有限公司 | Sealed bellows expansion joint with fixed auxiliary filling |
| DE102004042247A1 (en) * | 2004-09-01 | 2006-03-16 | Rattay Metallschlauch Und Kompensatorentechnik Gmbh | Compensator bellow for movemental admission of piping for transport of gaseous or liquid medium, has filling hole provided for adhering tube ends, inserted into connecting ends, in one of patterns |
| CN202182276U (en) * | 2011-06-02 | 2012-04-04 | 李建军 | Double-sealing sleeve compensator |
| CN104019313A (en) * | 2014-06-06 | 2014-09-03 | 江苏贝特管件有限公司 | Integrated high-pressure resistant non-leakage sleeve compensator |
| CN104132214A (en) * | 2014-07-10 | 2014-11-05 | 江苏百新波纹管有限公司 | Duplex pipeline compensator |
-
2016
- 2016-08-24 CN CN201610709003.1A patent/CN106322043B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904378A (en) * | 1995-11-28 | 1999-05-18 | Shell Oil Company | Flexible joint |
| CN2539046Y (en) * | 2001-11-15 | 2003-03-05 | 上海国电燃机技术工程有限公司 | Sealed bellows expansion joint with fixed auxiliary filling |
| DE102004042247A1 (en) * | 2004-09-01 | 2006-03-16 | Rattay Metallschlauch Und Kompensatorentechnik Gmbh | Compensator bellow for movemental admission of piping for transport of gaseous or liquid medium, has filling hole provided for adhering tube ends, inserted into connecting ends, in one of patterns |
| CN202182276U (en) * | 2011-06-02 | 2012-04-04 | 李建军 | Double-sealing sleeve compensator |
| CN104019313A (en) * | 2014-06-06 | 2014-09-03 | 江苏贝特管件有限公司 | Integrated high-pressure resistant non-leakage sleeve compensator |
| CN104132214A (en) * | 2014-07-10 | 2014-11-05 | 江苏百新波纹管有限公司 | Duplex pipeline compensator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106322043B (en) | 2018-07-06 |
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Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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