CN201277398Y - Steel pipe expansion joint - Google Patents
Steel pipe expansion joint Download PDFInfo
- Publication number
- CN201277398Y CN201277398Y CNU2008202187972U CN200820218797U CN201277398Y CN 201277398 Y CN201277398 Y CN 201277398Y CN U2008202187972 U CNU2008202187972 U CN U2008202187972U CN 200820218797 U CN200820218797 U CN 200820218797U CN 201277398 Y CN201277398 Y CN 201277398Y
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- left end
- end sleeve
- hand member
- pipe
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 12
- 239000010959 steel Substances 0.000 title claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims abstract description 11
- 210000002445 nipple Anatomy 0.000 claims description 11
- 230000008719 thickening Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000003082 abrasive agent Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract 2
- 229910052755 nonmetal Inorganic materials 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Images
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- Joints Allowing Movement (AREA)
Abstract
The utility model belongs to the pipeline and pipe technical field, in particular to a steel pipeline expansion joint, which comprises a left end sleeve, a right end sleeve, a packing ring and a connecting flange. The steel pipeline expansion joint is characterized in that a part of the left end sleeve is inserted into the right end sleeve, a baffle block with a lug boss is welded on the outer wall of an end head of the left end sleeve, the lug boss is also arranged on the outer wall of the end head of the right end sleeve, the packing ring is arranged on a joint between the left sleeve and the right sleeve, and a ring-shaped gland with two limit grooves is pressed on the joint of the left end sleeve and the right end sleeve and is fastened by screw bolts. The steel pipeline expansion joint has the advantages that the structure is simple, the sealing effect is good, high temperature and high pressure are resisted, the expansion amount is big, and the installation and maintenance are convenient.
Description
Technical field
The utility model belongs to pipeline pipe fitting technical field, particularly a kind of steel pipe slip joint.
Background technique
Slip joint is the pipe fitting a kind of commonly used that is used on the industrial pipeline, and it mainly acts on is to reduce because the expanding with heat and contract with cold when causing piping displacement to the infringement of pipeline and connection part thereof of vibrations or tubing.Slip joint at present commonly used has metal expansion bend, nonmetal expansion bend (flexible fabric slip joint, non-metal expansion joint), and wherein nonmetal expansion bend has the characteristics of universal compensation, has high-low temperature resistant, performance such as withstand voltage, corrosion-resistant.The installation degrees of freedom is big, and axial-radial allows bigger deviation.Nonmetal relatively expansion bend, stainless steel telescopic joint have wear resistance and fatigue resistance preferably, are applicable to that pressure height, interior media hardness are big, and bigger industrial ore slurry pipeline weares and teares.Slip joint commonly used is mainly by the inner and outer sleeves of coaxial fit, between inside and outside sleeve, be provided with bellows and seal ring is formed, but this slip joint exists following defective when being used for the flexible compensation of industrial ore slurry pipeline: because the pipe interior slurry temperature of transfer ore pulp raises or reduces, its body temperature also increases or reduces, cause the physical dimension of body to change, existing Bellows expansion joint does not satisfy the high pressure usage requirement, and sealing can not get guaranteeing in actual use.
Summary of the invention
The purpose of this utility model provides that a kind of simple in structure, good sealing effect, high temperature high voltage resistant, extending amount are big, installation and maintenance steel pipe slip joint easily.
The purpose of this utility model realizes by following technical proposals.
According to steel pipe slip joint of the present utility model, comprise left end sleeve pipe, right-hand member sleeve pipe, seal ring, adpting flange, a part that it is characterized in that described left end sleeve pipe is inserted in the right-hand member sleeve pipe, on the outer wall of left end sleeve pipe termination, be welded with the block of band boss, on the outer wall of right-hand member sleeve pipe termination, also be provided with boss, about the joint of two sleeve pipes be provided with seal ring, the ring-type gland cover that has two limited impressions is pressed on the sleeve pipe joint, two ends, the left and right sides, and by bolton.
Described left end sleeve pipe is welded by inlet pipe nipple and left end Telescopic short piece, and the right-hand member sleeve pipe is formed by connecting by right-hand member Telescopic short piece and outlet pipe nipple screw.
The height of described block with spacing plush copper is a little less than the height of two limited impressions on the gland.
The inlet pipe nipple of described left end sleeve pipe and the outlet pipe nipple of right-hand member sleeve pipe adopt the thickening high-abrasive material to manufacture.
The utility model has the advantages that: simple in structure, good sealing effect, high temperature high voltage resistant, extending amount is big, installation and maintenance are convenient.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model comprises left end sleeve pipe 2, right-hand member sleeve pipe 9, seal ring, adpting flange, a part that it is characterized in that described left end sleeve pipe is inserted in the right-hand member sleeve pipe, on the outer wall of left end sleeve pipe termination, be welded with the block 5 of band boss 4, on the outer wall of right-hand member sleeve pipe termination, also be provided with boss 7, about the joint of two sleeve pipes be provided with section and be
The seal ring 6 of type, the ring-type gland 3 that has two limited impressions 8 is withheld on sleeve pipe joint, two ends, the left and right sides, and by bolton.The boss height of two sleeve pipe terminations is a little less than the height of two limited impressions on the gland about described in the utility model.When ring-type gland 3 covers that have two limited impressions 8 are pressed on the sleeve pipe joint, two ends, the left and right sides, two boss 4,7 on the sleeve pipe of two ends, the left and right sides just place in two limited impressions 8 of ring-type gland, and certain-length is arranged apart from the gap between boss 4,7 and the limited impression 8, the regulation range of the compensation rate of its slip joint length is determined by the length distance gap of limited impression 8.
Like this when transfer ore pulp, fluid flows from left to right, when left and right sides occurred level displacement or because of ore pulp flows the pipeline temperature is raise, during the pipeline elongation, two boss 4,7 on the sleeve pipe of two ends, the left and right sides slide in the gap of the certain-length distance of two limited impressions 8 of ring-type gland 3, the length that can suction line increases, when boss run into groove interior along the time, be the maximum elongation amount of this slip joint; When if temperature descends, pipeline shortens, and can compensate shortening amount again, when boss is run into the outer of groove, is the maximum collapse amount of this slip joint.
Section owing to seal ring 6 of the present utility model is in addition
Type, its section is stressed evenly during work, rationally, and has and compresses gland 3 again, has guaranteed the sealing effect of slip joint effectively.
In order to make left and right sides sleeve pipe 2,9 and pipeline connection and maintenance easily, the utility model is connected to inlet pipe nipple 1 at a face down bonding of described left sleeve pipe 2, side at right sleeve pipe 9 is connected with outlet pipe nipple 10 by flange, and the thickening wear-resistant tubing that all adopt at pipe nipple position, gateway, both sides is made.Improved the working life of slip joint effectively.
Claims (4)
1, a kind of steel pipe slip joint, comprise left end sleeve pipe, right-hand member sleeve pipe, seal ring, adpting flange, a part that it is characterized in that described left end sleeve pipe is inserted in the right-hand member sleeve pipe, on the outer wall of left end sleeve pipe termination, be welded with the block of band boss, on the outer wall of right-hand member sleeve pipe termination, also be provided with boss, about the joint of two sleeve pipes be provided with seal ring, the ring-type gland cover that has two limited impressions is pressed on the sleeve pipe joint, two ends, the left and right sides, and by bolton.
2, steel pipe slip joint according to claim 1 is characterized in that described left end sleeve pipe is welded by inlet pipe nipple and left end Telescopic short piece, and the right-hand member sleeve pipe is formed by connecting by right-hand member Telescopic short piece and outlet pipe nipple screw.
3, steel pipe slip joint according to claim 1 is characterized in that the height of the height of described block with spacing plush copper a little less than two limited impressions on the gland.
4, steel pipe slip joint according to claim 2 is characterized in that the inlet pipe nipple of described left end sleeve pipe and the outlet pipe nipple of right-hand member sleeve pipe adopt the thickening high-abrasive material to manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202187972U CN201277398Y (en) | 2008-10-31 | 2008-10-31 | Steel pipe expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202187972U CN201277398Y (en) | 2008-10-31 | 2008-10-31 | Steel pipe expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277398Y true CN201277398Y (en) | 2009-07-22 |
Family
ID=40894983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202187972U Expired - Fee Related CN201277398Y (en) | 2008-10-31 | 2008-10-31 | Steel pipe expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277398Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112600141A (en) * | 2020-12-04 | 2021-04-02 | 李莉 | Surrounding type sealing device for building electrical pipeline |
| CN113023367A (en) * | 2021-02-08 | 2021-06-25 | 上海智质科技有限公司 | Material sample conveying system and control method thereof |
-
2008
- 2008-10-31 CN CNU2008202187972U patent/CN201277398Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112600141A (en) * | 2020-12-04 | 2021-04-02 | 李莉 | Surrounding type sealing device for building electrical pipeline |
| CN112600141B (en) * | 2020-12-04 | 2022-06-28 | 李莉 | Surrounding type sealing device for building electrical pipeline |
| CN113023367A (en) * | 2021-02-08 | 2021-06-25 | 上海智质科技有限公司 | Material sample conveying system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Anshan Iron & Steel Group Mining Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20171031 |