CN200968467Y - Full buried anti-corrosive external pressure thermal insulation type corrugated pipe expansion-joint - Google Patents
Full buried anti-corrosive external pressure thermal insulation type corrugated pipe expansion-joint Download PDFInfo
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- CN200968467Y CN200968467Y CN 200620122504 CN200620122504U CN200968467Y CN 200968467 Y CN200968467 Y CN 200968467Y CN 200620122504 CN200620122504 CN 200620122504 CN 200620122504 U CN200620122504 U CN 200620122504U CN 200968467 Y CN200968467 Y CN 200968467Y
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- pipe
- external pressure
- bellows
- expansion joint
- end pipe
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Abstract
A totally buried anticorrosive external pressure insulating expansion joint of a corrugated pipe consists of a working corrugated pipe, a protective corrugated pipe, an insulating structure, a floating external cylinder. The two ends of the working corrugated pipe are connected with a first big end pipe; the first big end pipe on one side is connected with a communicating pipe by an internal guide; the first big end pipe on another side is connected with a first external pipe by a middle plate; two ends of the protective corrugated pipe are connected with a second big end pipe; the second big end pipe on one side is connected with a second external pipe by the middle plate; the second big end pipe on another side is connected with a right plate; a right cylinder is arranged between the right plate and the communicating pipe. The insulating structure is formed from a protecting tube, the end pipe, an end-plate, the first external pipe, the middle plate, the second external pipe and an external end pipe. The symmetrical and floating external cylinder is arranged on the outermost layer of the totally buried anticorrosive external pressure insulating expansion joint of the corrugated pipe. The product has the good heat-insulating property and is arranged on any position of a pipeline to prevent the impurity such as the groundwater from entering into an internal surface of the working corrugated pipe and avoid the corrosion of the corrugated pipe.
Description
Technical field
The utility model relates to a kind of directly buried pipeline annex of carrying liquid or gas, especially relates to a kind of anticorrosion external pressure heat insulation type bellows expansion joint that buries entirely.
Background technique
Traditional direct built-in bellows expansion joint generally only is used for the lower area of level of ground water, in case level of ground water will be higher than the position of directly buried pipeline, just need be incubated with anticorrosion the bellows expansion joint of corresponding pipeline and pipeline.And traditional direct built-in bellows expansion joint is made up of a bellows that bears external pressure, end plate, end pipe, short tube, outer tube etc. usually, bellows is subjected to stretching and absorbs displacement during the pipeline thermal elongation, and the packing structure of movable end can only prevent that soil block or stone grain from entering bellows interior.Not enough in the aspect abilities such as corrosion-resistant thermal insulation that solve pipeline, major defect shows the following aspects: (1) can only absorb unidirectional axial displacement; (2) do not possess thermal insulation property; (3) underground water can enter the bellows inwall, and antiseptic property is low relatively; (4) installation position to product is equipped with strict requirement.
The model utility content
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of and can absorb bigger axial displacement, and can be installed on any position of pipeline easily and insulating structure is arranged, each part of product has been carried out the anticorrosion external pressure heat insulation type bellows expansion joint of burying entirely of corrosion protection design.
Technical solution of the present utility model is: bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: its main structure is work bellows, protection bellows, insulating structure, floating type exterior cover pipeline structure, the two ends of work bellows 9 connect first end pipe 8, the first end pipe of one side links to each other with siphunculus 10 by interior guiding 7, and the first end pipe of opposite side links to each other with first outer tube 11 by end plates 12; The two ends of protection bellows 14 connect second largest end pipe 15, the second largest end pipe of one side links to each other with second outer tube 13 by end plates 12, the second largest end pipe of opposite side links to each other with right panel 16, right tube 18 is set between right panel 16 and siphunculus 10, siphunculus 10, right tube 18 and right panel 16 are formed an end heat preservation structure, casing 3, end pipe 1, end plate 5, first outer tube 11, end plates 12, second outer tube 13 and outer end plate 17 are formed outer insulating structure, second outer tube 13 links to each other with outer end plate 17 respectively with casing 3, and end pipe 1 links to each other with first outer tube 11 by end plate 5; At the outermost surface that buries anticorrosion external pressure heat insulation type bellows expansion joint entirely the floating type exterior cover pipeline structure of symmetric type is set.
Described floating type exterior cover pipeline structure mainly comprises every soil cover 4, every soil cover shrouding 19, graphite packing 20, ring 21, pressing plate 22, every soil cover 4 be connected every soil cover shrouding 19, pressing plate 22 and between soil cover shrouding 19, place graphite packing 20 and ring 21, and connect by link.
The utility model beneficial effect compared with prior art is:
1, owing to the floating type exterior cover pipeline structure of employing, but the product direct-burried guarantees the product bidirectional displacement in bad border of dynamic load, and product can be installed on any position of pipeline;
2, increased the protection bellows structure, impurity such as prevention underground water enter the work bellows inside surface, effectively prevent the bellows corrosion;
3, entire product adopts the steel bushing structure, direct foamed heat insulating between casing and the outer tube, the good heat insulating of product;
4, work ripple inner tube wall and protection bellows outer wall are coated with inorganic zinc-rich and inorganic aluminium rich primer; All carbon steel exposed parts all spray 881 epoxy zinc rich primers and 881 epoxide coal bituminous finish paints, and more reliable anti-corrosion measure is provided.
Description of drawings:
Fig. 1 is the structural representation that the utility model buries anticorrosion external pressure heat insulation type bellows expansion joint entirely;
Fig. 2 is the enlarged diagram that the utility model buries the floating type exterior cover pipeline structure member of anticorrosion external pressure heat insulation type bellows expansion joint entirely;
Fig. 3 is the connecting-tube nozzle enlarged diagram that the utility model buries anticorrosion external pressure heat insulation type bellows expansion joint entirely.
Wherein: 1, end pipe, 2, positioning rod, 3, casing, 4, every the soil cover, 5, end plate; 6, guide shell, 7, interior guiding, 8, first end pipe, 9, the work bellows, 10, siphunculus; 11, first outer tube, 12, end plates, 13, second outer tube, 14, the protection bellows; 15, second largest end pipe, 16, right panel, 17, outer end plate, 18, right tube; 19, every soil cover shrouding, 20, the graphite packing, 21, ring, 22, pressing plate; 23, bolt, 24, packing ring, 25, nut, 26, connecting-tube nozzle.
Embodiment
As Fig. 1, Fig. 2 and Fig. 3, the two ends of burying the work bellows 9 of anticorrosion external pressure heat insulation type bellows expansion joint entirely connect first end pipe 8, the first end pipe of one side links to each other with siphunculus by interior guiding, and the first end pipe of opposite side links to each other with first outer tube by end plates; The two ends of protection bellows connect second largest end pipe, the second largest end pipe of one side links to each other with second outer tube by end plates, the second largest end pipe of opposite side links to each other with right panel, right tube is set between right panel and siphunculus (10), siphunculus, right tube and right panel are formed an end heat preservation structure, casing, end pipe, end plate, first outer tube, end plates, second outer tube and outer end plate are formed outer insulating structure, second outer tube links to each other with outer end plate by spot welding respectively with casing, and the end pipe links to each other with first outer tube by end plate; At the outermost surface that buries anticorrosion external pressure heat insulation type bellows expansion joint entirely the floating type exterior cover pipeline structure of symmetric type is set.This structure comprises every the soil cover, every soil cover shrouding, graphite packing, ring, pressing plate, bolt, packing ring and nut.Every the soil cover be connected every soil cover shrouding, structural member such as casing and soil are separated, but the product direct-burried guarantees the product bidirectional displacement in bad border of dynamic load, product can be installed on any position of pipeline.Every soil cover shrouding be connected every the soil cover, prevent that underground soil from entering casing, and play link.The graphite packing mainly seals, and prevents that impurity such as underground soil from entering product structure spare inside.Ring and pressing plate then can be protected the graphite packing, prevent the destruction of product graphite packing in movement process, ring, pressing plate, are connected and fixed by bolt, packing ring and nut at last every structural members such as soil cover shroudings.
The end pipe is consistent with the pipe diameter of the pipeline of required installation with the pipe diameter of siphunculus, play link and pressure part, and can serve as guide shell well, because this end pipe can prevent effectively that the medium that flows from directly contacting with bellows, so very suitable to the medium pipeline of those high-velocity fluids (gas or liquid).
The work bellows time is mainly used in extraction duct because the thermal walking that temperature difference produces generally requires design according to pipeline in work, is external pressure because this work bellows bears, so when working anti-well unstability ability can be arranged.Because bellows is bigger than the pipe diameter of the pipeline of required installation, the pressure of medium is in the bellows outside, and first outer tube plays link and pressure part, in addition effectively spacer medium and thermal insulation layer of first outer tube.End plate is used for the connecting end pipe and first outer tube, and end plate is a pressure part, and insulation the time plays buffer action.
Protection bellows and second largest end pipe 3, the second outer tubes and right panel have formed an independently anticorrosion space, prevent that underground water from entering work ripple tube cavity, and can absorb and the identical axial displacement of work bellows.Right tube is set between right panel and siphunculus, the very convenient end integral heat insulation of product, this thermal insulation layer cavity generally according to the requirement of client reservation, links to each other with the other side's insulation pipe, and the various pressure of soil can bear the product direct-burried time.
Pressure check before the product export for convenience, the top of a second largest end pipe is provided with connecting-tube nozzle therein, and the main effect of this part is to carry out the air tightness test check in manufacture course of products.
For preventing that swiftly flowing medium from directly entering in the bellows bellows is produced wearing and tearing or washes away, be provided with guide shell, it is inner that guide shell directly is socketed in the end pipe, and this part can reduce the out-of-date resistance of MEDIA FLOW.
For satisfying on the engineering insulation requirement to product, heat preserving mode for the direct built-in thermal insulation pipe all adopts integral polyurethane foamed heat insulating structure at present, in order to reach above-mentioned requirements, this product is provided with perfect insulating structure, casing, end pipe, end plate, first outer tube, end plates, second outer tube and outer end plate etc. are formed a big outer insulating structure, and the end pipe is connected with the insulation urceolus with the other side's steel pipe respectively with casing; Siphunculus, right tube and right panel are formed a little insulating structure, and siphunculus also is connected with the insulation urceolus with the other side's steel pipe respectively with right tube; Above-mentioned two complete and independent insulating structures can solve the practical problem of engineering well.
Bury anticorrosion external pressure heat insulation type bellows expansion joint entirely and also have positioning rod, be fixed on casing and on soil cover shrouding by spot welding, the main effect of this part is in the transportation of product and installation process product to be played interim location to use, prevent that bellows from distorting in transportation and installation process, this positioning rod will be removed during work.
In order to improve anti-corrosion function, consider and contain chlorion in the medium that work ripple inner tube wall and protection bellows outer wall are coated with inorganic zinc-rich and inorganic aluminium rich primer; All carbon steel exposed parts all spray 881 epoxy zinc rich primers and 881 epoxide coal bituminous finish paints.
During installation, the end pipe is connected with the other side's working steel tube with the method for siphunculus by welding; Casing and right tube then bond by telescopic band and the other side's thermal insulation pipe.After installing, before the backfill sand, to remove the fixedly positioning rod of usefulness of transportation.
Claims (9)
1, buries anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: its main structure is work bellows, protection bellows, insulating structure, floating type exterior cover pipeline structure, the two ends of work bellows (9) connect first end pipe (8), the first end pipe of one side links to each other with siphunculus (10) by interior guiding (7), and the first end pipe of opposite side links to each other with first outer tube (11) by end plates (12); The two ends of protection bellows (14) connect second largest end pipe (15), the second largest end pipe of one side links to each other with second outer tube (13) by end plates (12), the second largest end pipe of opposite side links to each other with right panel (16), right tube (18) is set between right panel (16) and siphunculus (10), siphunculus (10), right tube (18) and right panel (16) are formed an end heat preservation structure, casing (3), end pipe (1), end plate (5), first outer tube (11), end plates (12), second outer tube (13) and outer end plate (17) are formed outer insulating structure, second outer tube (13) links to each other with outer end plate (17) respectively with casing (3), and end pipe (1) links to each other with first outer tube (11) by end plate (5); At the outermost surface that buries anticorrosion external pressure heat insulation type bellows expansion joint entirely the floating type exterior cover pipeline structure of symmetric type is set.
2, according to claim 1ly bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: described floating type exterior cover pipeline structure mainly comprises every soil cover (4), every soil cover shrouding (19), graphite packing (20), ring (21), pressing plate (22), every soil cover (4) be connected every soil cover shrouding (19), pressing plate (22) and between soil cover shrouding (19), place graphite packing (20) and encircle (21), and connect by link.
3, according to claim 1ly bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: the inner guide shell (6) of installing of described end pipe (1), guide shell (6) directly is socketed in end pipe (1) inside.
4, according to claim 1ly bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: the pipe diameter of described work bellows (9) and protection bellows (14) is greater than the diameter of conveyance conduit.
5, according to claim 1ly bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: described end pipe (1) is consistent with the pipe diameter of the pipeline of being installed with the pipe diameter of siphunculus (10).
6, according to claim 1ly bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: described work bellows (9) inwall and protection bellows (14) outer wall scribble inorganic zinc-rich and inorganic aluminium rich primer.
7, according to claim 1ly bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: the exposed parts spraying epoxy zinc rich primer and the epoxide coal bituminous finish paint of described floating type exterior cover pipeline structure, casing (3) and end pipe (1).
8, according to claim 1ly bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: connecting-tube nozzle (26) is installed on the top of one of described two second largest end pipes (15).
9, according to claim 1ly bury anticorrosion external pressure heat insulation type bellows expansion joint entirely, it is characterized in that: described casing (3) and positioning rod (2) is set between soil cover shrouding (19), positioning rod (2) are fixed on casing (3) and on soil cover shrouding (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122504 CN200968467Y (en) | 2006-07-20 | 2006-07-20 | Full buried anti-corrosive external pressure thermal insulation type corrugated pipe expansion-joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122504 CN200968467Y (en) | 2006-07-20 | 2006-07-20 | Full buried anti-corrosive external pressure thermal insulation type corrugated pipe expansion-joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200968467Y true CN200968467Y (en) | 2007-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620122504 Expired - Fee Related CN200968467Y (en) | 2006-07-20 | 2006-07-20 | Full buried anti-corrosive external pressure thermal insulation type corrugated pipe expansion-joint |
Country Status (1)
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|---|---|
| CN (1) | CN200968467Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278563A (en) * | 2011-05-29 | 2011-12-14 | 石家庄巨力科技有限公司 | pipeline expansion joint |
| CN103438320A (en) * | 2013-08-23 | 2013-12-11 | 江苏博格东进管道设备有限公司 | Bi-direction balance type bellows compensator |
| CN103851298A (en) * | 2014-03-19 | 2014-06-11 | 江苏亚星波纹管有限公司 | Heat-preserving waterproof fully-buried expansion joint |
| CN104314096A (en) * | 2014-11-01 | 2015-01-28 | 山东力源铁塔制造有限公司 | Steel pipe pole pile type foundation construction method for using epoxy coal pitch finish paint to prevent corrosion |
| CN107345611A (en) * | 2016-05-08 | 2017-11-14 | 江苏贝特管件有限公司 | Guide and limit direct-burried outer pressure axial type expansion joint |
| CN108591662A (en) * | 2017-11-10 | 2018-09-28 | 江苏飞天管道设备有限公司 | A kind of pipeline connection expansion joint |
-
2006
- 2006-07-20 CN CN 200620122504 patent/CN200968467Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278563A (en) * | 2011-05-29 | 2011-12-14 | 石家庄巨力科技有限公司 | pipeline expansion joint |
| CN103438320A (en) * | 2013-08-23 | 2013-12-11 | 江苏博格东进管道设备有限公司 | Bi-direction balance type bellows compensator |
| CN103851298A (en) * | 2014-03-19 | 2014-06-11 | 江苏亚星波纹管有限公司 | Heat-preserving waterproof fully-buried expansion joint |
| CN104314096A (en) * | 2014-11-01 | 2015-01-28 | 山东力源铁塔制造有限公司 | Steel pipe pole pile type foundation construction method for using epoxy coal pitch finish paint to prevent corrosion |
| CN107345611A (en) * | 2016-05-08 | 2017-11-14 | 江苏贝特管件有限公司 | Guide and limit direct-burried outer pressure axial type expansion joint |
| CN108591662A (en) * | 2017-11-10 | 2018-09-28 | 江苏飞天管道设备有限公司 | A kind of pipeline connection expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071031 Termination date: 20150720 |
|
| EXPY | Termination of patent right or utility model |