CN2354005Y - Safety directly-buried type expansion section of metal corrugated pipe - Google Patents
Safety directly-buried type expansion section of metal corrugated pipe Download PDFInfo
- Publication number
- CN2354005Y CN2354005Y CN 98238974 CN98238974U CN2354005Y CN 2354005 Y CN2354005 Y CN 2354005Y CN 98238974 CN98238974 CN 98238974 CN 98238974 U CN98238974 U CN 98238974U CN 2354005 Y CN2354005 Y CN 2354005Y
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- CN
- China
- Prior art keywords
- flange
- expansion joint
- corrugated pipe
- metal corrugated
- buried type
- 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
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Abstract
The utility model relates to a metal corrugated pipe for a heating gathering and transportation pipeline, particularly a safety directly-buried type expansion joint of a metal corrugated pipe. The safety directly-buried type expansion joint of a metal corrugated pipe comprises a connecting pipe 1, a flange 2, a protective cylinder 3, a corrugated pipe 4, a middle flange 5, a guiding ring 6, a secondary positioning flange 7, a bolt 8, a shim 9, a sealing ring 10, a flange 11, a bolt 12, filler materials 13, a packing 14, a slide connecting pipe 15, thermal insulating materials 16, a connecting pipe 17 and a flow guide cylinder 18. The safety directly-buried type expansion joint of a metal corrugated pipe has very reliable stability at the direction of a post. When the installation error which is relatively big is overcome, the concentricity of both sides can also be forced. The constraint that L1 is smaller than or equal to 4DN, L2 is smaller than or equal to 14DN and the constraint of L3 are completely eliminated, and the influence caused by the installation error is overcome. The utility model has the characteristics of small size, easy fabrication, engineering cost reduction and reliable installation. The common problems of twist, screw, destabilization, etc. are avoided, and the corrosion to the expansion joint corrugated pipes caused by underground sewage and working media is solved. The anticorrosive life for twenty years can be ensured. Once the expansion joint corrugated pipes break in the operation of pipe networks, pipe network systems can also be ensured to operate safely and stably.
Description
The utility model relates to the metal corrugated pipe expansion joint that a kind of heat supply gathering line uses, particularly a kind of safety type directly buried type metal corrugated pipe expansion joint.
Along with developing rapidly of city heat supply cause, the heat supply pipeline directly buried technology have occupation of land less, easy construction, flexibly, progress is fast, engineering cost is low, good heat insulation, do not influence the appearance of the city, especially its advantage is more outstanding under the situation of city underground installation more complicated.But in balanced directly buried pipeline engineering, at the directly buried type expansion joint of usefulness because self supporting structure and guide structure are unreasonable, easily cause the expansion joint bellows that common diseases such as " having turned round ", " having twisted " and unstability take place, exist L1≤4DN simultaneously to the guiding trestle spacing, the requirement of L2≤4DN and L3 easily causes support of pipelines to arrange local overstockedly maybe can't make.In case when whole heating network expansion joint bellows in space breaks, heating system is had to out of service for a long time, the expansion joint that must more renew again could normal operation.And, can not stop heat supply for a long time for heating network.Even out of service by force, change expansion joint, also can cause heavy losses because of the maintain and replace time is long.Working medium and underground sewage are to expansion joint bellows seriously corroded simultaneously, the working life of directly buried type expansion joint is also shorter, exist the expansion joint sliding position and can't be incubated preservative treatment, underground sewage is easy to corrode whole pipeline, cause the corrosion of pipeline occurrence of large-area, shorten the service life of pipe network.
The purpose of this utility model is to provide a kind of safety type directly buried type metal corrugated pipe expansion joint, and having solved in the past, " having turned round ", " having twisted " and unstable phenomenon take place directly buried type expansion joint bellows.In case also possess, still can guarantee the pipe network system safe and stable operation, and successfully solve etching problem when pipe network bellows bursts in running.
The purpose of this utility model is to realize like this; it comprises adapter (1); flange (2); protecting jacket (3); bellows (4); spacer flanger (5); guide collar (6); inferior directed flange (7); bolt (8); pad (9); seal ring (10); flange (11); bolt (12); filler (13); packing (14); slide and take over (15); thermal insulating material (16); (17) are taken in work; guide shell (18) is formed; ring is taken over (1) and flange (2) welding; flange (2) successively with protecting jacket (3); seal ring (10) welding; in protection tube (3) is bellows (4); spacer flanger (5); guide collar (6); inferior directed flange (7); in sealing (10), bolt (8) is arranged; pad (9); there is filler (13) its underpart; packing (14); seal ring (10) connects by bolt (12) with flange (11); slide and take over (15); take over the bottom that (16) are welded on time directed flange (7) respectively, innermost layer is guide shell (18).
This safety type directly buried type metal corrugated pipe expansion joint is owing to adopted above-mentioned material and structure, not only has very reliable post to stability, can also overcome alignment error when big, still can force both sides concentric, eliminate L1≤4DN fully, the constraint of L2≤14DN and L3, overcome the influence that alignment error is brought, it is little that it has a volume, easy to manufacture, reduce engineering cost, safe and reliable characteristics, avoid taking place " having turned round ", common diseases such as " stubborn " and unstability, successfully solved the corrosion of underground sewage and working medium, can guarantee the anticorrosion life-span more than 20 years the expansion joint bellows.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
The directional protection tube (3) of safety type directly buried type metal corrugated tube expansion joint is to be not less than work with the bending resistance square to take over the steel cylinder of (1) and make; one side of directional protection tube (3) and main directed flange (2) welding, the guide collar (6) that is included in the directional protection cover (3) is taken over (17) welding by time directed flange 7 and opposite side work.Core parts-the bellows 4 of safety type directly buried type metal corrugated pipe expansion joint adopts advanced multilayer (3-12 layers) structure.Carry out EJMA--1993 " U.S. expansioning section manufacturer association standard ".On the inside and outside surface of bellows and the weld joint adopt chemical nickel plating to carry out preservative treatment.
Safety type directly buried type metal corrugated pipe expansion joint core parts-bellows 4 inside and outside surfaces and weld joint adopt chemical nickel plating to carry out preservative treatment, the thickness of nickel-phosphor alloy coating is 30-45um, because nickel-phosphor alloy coating has smooth bright clean appearance, the structure of uniformity, good anti-corrosion, wear-resisting property and higher hardness and good electromagnetic performance and mechanical property.In salt solution, salt solution, seawater, big right water, condensed water, hydrocarbon, chemical medium, petroleum industry medium and atmosphere, extraordinary corrosion resistance is arranged all.Its operating temperature range is-80 ℃-800 ℃.So safety type directly buried type metal corrugated pipe expansion joint has successfully solved underground sewage and working medium to the corrosion of expansion joint bellows, can guarantee the anticorrosion life-span more than 20 years.
Adopted the advanced formula annotated flexible filler sealing configuration in the slip end of safety type directly buried type metal corrugated pipe expansion joint, in seal ring 10, open twice or the seal groove more than the twice (bigbore expansion joint need be used the seal groove structure of multiple tracks), groove width 10mm, groove depth 8mm.The seal ring 10 and the matching gap of taking between 15 of sliding require less than 1mm.Asbestos packing 14 is housed in the seal groove, and supported flange 11 can be regulated the degree that compresses of sealing.It is 3 integrally welded that seal ring 10 and directional protection overlap.When the bellows generation in a single day of safety type metal corrugated pipe expansion joint is leaked or broken, adopt the band temperate zone to press blocking method, by special injection tool, can annotate formula stuffing box packing BM-1 or BM-2 by injection screw 8, and under the high pressure effect, force to inject in the Seal cage of expansion joint sealing configuration reservation.Because it is gapped that injection pressure height, stuffing box packing can fully be clogged institute.Because of its have in the effect of expanding, can the pre-extruding of asbestos packing is tight, thus reach the sealing effect of expection, do not need stop work and production just can eliminate the leakage that is taken place, thereby guarantee that whole pipe network system still can move with security and stability.
Take over the insulating structure of 17 employing double barreleds simultaneously in the work of slip end, 16 fillings of 17 employing insulation antiseptic materials are taken in slide adapter 15 and work.Adapter 15 outer surfaces that slide have adopted the electrogalvanizing processing.Requiring the zinc electrodeposited coating is Fe/Zn25ClA.Improved the anti-corrosion ability greatly.Thereby guaranteed the reliability of sealing.Slip adapter 15 and inferior directed flange 7 are integrally welded.
Claims (2)
1; the utility model relates to a kind of metal corrugated pipe expansion joint of heat supply gathering line; particularly a kind of safety type directly buried type metal corrugated pipe expansion joint; it comprises adapter (1); flange (2); outer protection tube (3); bellows (4); spacer flanger (5); guide collar (6); inferior directed flange (7); bolt (8); pad (9); seal ring (10); flange (11); bolt (12); filler (13); packing (14); slide and take over (15); thermal insulating material (16); taking over (17) and guide shell (18) forms; it is characterized in that: ring is taken over (1) and flange (2) welding; flange (2) successively with protecting jacket (3); seal ring (10) welding; in protection tube (3) is bellows (4); spacer flanger (5); guide collar (6); inferior directed flange (7); in sealing (10), bolt (8) is arranged; pad (9); there is filler (13) its underpart; packing (14); seal ring (10) connects by bolt (12) with flange (11); slide and take over (15); take over the bottom that (17) are welded on time directed flange (7) respectively, innermost layer is guide shell (18).
2, safety type directly buried type metal corrugated pipe expansion joint according to claim 1, it is characterized in that: slide to take over and adopt the filling of insulation antiseptic material between (15) and work adapter (17), adapter (15) outer surface that slides has adopted the electrogalvanizing processing, and requiring the zinc electrodeposited coating is Fe/Zn25ClA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238974 CN2354005Y (en) | 1998-09-24 | 1998-09-24 | Safety directly-buried type expansion section of metal corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238974 CN2354005Y (en) | 1998-09-24 | 1998-09-24 | Safety directly-buried type expansion section of metal corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2354005Y true CN2354005Y (en) | 1999-12-15 |
Family
ID=33986437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238974 Expired - Fee Related CN2354005Y (en) | 1998-09-24 | 1998-09-24 | Safety directly-buried type expansion section of metal corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2354005Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402979C (en) * | 2004-01-17 | 2008-07-16 | 湖北清江水布垭工程建设公司 | Pipeline for monitoring dam panel deflection or internal deformation of dam-body |
| CN102003588A (en) * | 2010-11-10 | 2011-04-06 | 洛阳双瑞特种装备有限公司 | Direct-buried type maintenance-free sleeve compensator |
| CN102537594A (en) * | 2011-12-22 | 2012-07-04 | 大连益多管道有限公司 | Heat insulating structure of directly-buried middle-temperature and low-temperature hot water sleeve compensator |
| CN102537595A (en) * | 2011-12-22 | 2012-07-04 | 大连益多管道有限公司 | Heat insulation structure of hot water sleeve compensator |
| CN105202302A (en) * | 2015-10-23 | 2015-12-30 | 王海平 | Compensator for low temperature medium pipeline |
| CN105889688A (en) * | 2016-06-16 | 2016-08-24 | 江苏扬光机械制造有限公司 | External pressure axial corrosion-prevention and heat-insulation type direct burial bellows expansion joint |
| CN105972368A (en) * | 2016-06-24 | 2016-09-28 | 安徽徽风新型合成材料有限公司 | Linear cross pipe composite corrugated pipe |
| CN107575687A (en) * | 2017-09-10 | 2018-01-12 | 江苏永力管道有限公司 | The inner pressed sleeve expansion joint of compound external insurance sleeve pipe |
-
1998
- 1998-09-24 CN CN 98238974 patent/CN2354005Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402979C (en) * | 2004-01-17 | 2008-07-16 | 湖北清江水布垭工程建设公司 | Pipeline for monitoring dam panel deflection or internal deformation of dam-body |
| CN102003588A (en) * | 2010-11-10 | 2011-04-06 | 洛阳双瑞特种装备有限公司 | Direct-buried type maintenance-free sleeve compensator |
| CN102537594A (en) * | 2011-12-22 | 2012-07-04 | 大连益多管道有限公司 | Heat insulating structure of directly-buried middle-temperature and low-temperature hot water sleeve compensator |
| CN102537595A (en) * | 2011-12-22 | 2012-07-04 | 大连益多管道有限公司 | Heat insulation structure of hot water sleeve compensator |
| CN105202302A (en) * | 2015-10-23 | 2015-12-30 | 王海平 | Compensator for low temperature medium pipeline |
| CN105889688A (en) * | 2016-06-16 | 2016-08-24 | 江苏扬光机械制造有限公司 | External pressure axial corrosion-prevention and heat-insulation type direct burial bellows expansion joint |
| CN105972368A (en) * | 2016-06-24 | 2016-09-28 | 安徽徽风新型合成材料有限公司 | Linear cross pipe composite corrugated pipe |
| CN107575687A (en) * | 2017-09-10 | 2018-01-12 | 江苏永力管道有限公司 | The inner pressed sleeve expansion joint of compound external insurance sleeve pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| RR01 | Reinstatement of patent right | ||
| C56 | Change in the name or address of the patentee |
Owner name: PANJIN ZHONGYUAN CORRUGATED TUBE CO., LTD. Free format text: FORMER NAME OR ADDRESS: ZHONGYUAN CORRUGATED-PIPE FACTORY, YINQIU INDUSTRY CO., LIAOHE OIL FIELD |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Panjin Zhongyuan bellows Co., Ltd. Patentee before: Zhongyuan Corrugated-Pipe Factory, Yinqiu Industry Co., Liaohe Oil Field |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |