CN202125701U - Expansion joint for pipe - Google Patents
Expansion joint for pipe Download PDFInfo
- Publication number
- CN202125701U CN202125701U CN2011201748736U CN201120174873U CN202125701U CN 202125701 U CN202125701 U CN 202125701U CN 2011201748736 U CN2011201748736 U CN 2011201748736U CN 201120174873 U CN201120174873 U CN 201120174873U CN 202125701 U CN202125701 U CN 202125701U
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- China
- Prior art keywords
- pipe
- work
- bellows
- left end
- corrosion
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Abstract
Disclosed is an expansion joint for a pipe, which is applied to solving the anti-corrosion problem of a directly embedded corrugated expansion joint. The expansion joint comprises a left end pipe, a right end pipe and a work corrugated pipe, wherein the expansion joint further comprises an anti-corrosion corrugated pipe, a sealing sleeve of the work corrugated pipe, a sealing sleeve of the anti-corrosion corrugated pipe, a first joint pipe, a second joint pipe and a third joint pipe; the first joint pipe, the work corrugation pipe, the second joint pipe, the anti-corrosion corrugated pipe and the third joint pipe are sequentially welded and sleeved out of the right end pipe; the sealing sleeve of the work corrugated pipe is sleeved out of the work corrugated pipe, and the both ends of the sealing sleeve of the work corrugated pipe are respectively welded with the left end pipe and the second joint pipe; the sealing sleeve of the anti-corrosion corrugated pipe is sleeved out of the anti-corrosion corrugated pipe; the right end of the sealing sleeve of the anti-corrosion corrugated pipe is welded with the right end pipe and the third joint pipe, and the left end of the sealing sleeve of the anti-corrosion corrugated pipe is in sliding and sealed fit with the sealing sleeve of the work corrugated pipe. According to the utility model, the sealing sleeves protect the corrugated pipes from corrosion; and displacement compensation and cavity balance are realized by coactions of the work corrugated pipe and the anti-corrosion corrugated pipe.
Description
Technical field
The utility model relates to a kind of pipe network parts, and particularly pipe network is used expansion pipe, belongs to the pipe fitting technical field.
Background technique
In the urban heating pipe network system, generally adopt the ripple expansion pipe as the heating network heat compensating unit.Along with the application of heat supply pipeline directly buried technology and the expansion pipe of direct-burried ripple, many outstanding advantages such as directly buried type expansion pipe technology demonstrates that floor space is few, engineering cost is low, do not influence the appearance of the city, protection environment.At present; Ripple expansion pipe of direct-burried external-compression type or the expansion pipe of direct-burried internal pressure type ripple generally adopted all are directly to contact with underground water on structural design; Of the infringement of underground larger particles solid matter can only be prevented, of the erosion of liquid substances such as underground water can not be prevented effectively bellows to bellows.Underground water greatly reduces the safe mass and the service life of ripple expansion pipe to the corrosion function of bellows, has limited the higher area and the coastal cities of using scope, particularly face of land water level of direct-burried ripple expansion pipe, even can't use.
The model utility content
The utility model technical problem to be solved is: a kind of pipeline expansion pipe that can prevent effectively that surface water and corrosion liquid from corroding bellows is provided.
The alleged problem of the utility model is solved by following technological scheme:
A kind of pipeline expansion pipe; Comprise left end pipe, right-hand member pipe and work bellows in the formation; Its specialization is: said expansion pipe comprises that also anticorrosion bellows, work ripple duct occlusion cover, anticorrosion bellows envelope, first are taken over, second adapter and the 3rd adapter; Wherein, first adapter, work bellows, second adapter, anticorrosion bellows, the 3rd are taken over seam successively and are sleeved on outside the right-hand member pipe, and said work ripple duct occlusion cover is sleeved on outside the operating wave line pipe; Seam is taken over left end pipe and second respectively in its two ends; Said anticorrosion bellows envelope is sleeved on outside the anticorrosion bellows, and its right-hand member and right-hand member pipe, the 3rd are taken over seam, and left end cooperates with the slipper seal of work ripple duct occlusion cover.
Above-mentioned pipeline expansion pipe, the left end seam annular guide plate of said first adapter, the inwall Spielpassung of guide plate outer rim and work ripple duct occlusion cover.
Above-mentioned pipeline expansion pipe, the left end of said anticorrosion bellows envelope are sleeved on the right-hand member of work ripple duct occlusion cover, are provided with sealing plate and seal ring at anticorrosion bellows envelope left end.
The utility model can not prevent effectively that to the expansion pipe of directly buried type ripple liquid substance such as underground water from improving the erosion problem of bellows; Work in expansion pipe bellows and anticorrosion bellows of design united use, and designed work ripple duct occlusion cover and with anticorrosion bellows envelope above-mentioned two bellowss are formed and protect.Above-mentioned improvement has realized the isolation of surface water or corrosion liquid material and bellows, plays the effect of bellows anti-corrosion protection.The utility model is under the interlock effect of work bellows and anticorrosion bellows; Realize bit shift compensation and cavity balance; Do not bear pipe medium pressure and temperature when working because of anticorrosion bellows; Only,, thereby significantly reduce the cost of expansion pipe so its manufacture cost is merely 1/3 of work bellows as sealing, isolation, compensating action.
Description of drawings
Fig. 1 is the utility model structural representation.
Label is represented as follows in the accompanying drawing: 1. left end pipe; 2. guide shell; 3. work ripple duct occlusion cover; 4. guide plate; 5. first take over; 6. work bellows; 7. sealing plate; 8. seal ring; 9. second take over; 10. anticorrosion bellows envelope; 11. anticorrosion bellows; 12. the 3rd takes over; 13. right-hand member pipe.
Embodiment
Referring to Fig. 1, the utility model comprises that left end pipe 1, right-hand member pipe 13, work bellows 6, work ripple duct occlusion cover 3, anticorrosion bellows 11, anticorrosion bellows envelope 10, first take over 5, second and take over the 9, the 3rd and take over 12 and guide shell 2.Medium is flowed out by the inflow of left end pipe, right-hand member pipe, and guide shell 2 is arranged between left end pipe and the right-hand member pipe, and extends in the right-hand member pipe.First takes over, works, and bellows, second is taken over, anticorrosion bellows, the 3rd is taken over seam successively and be sleeved on the right-hand member pipe outside.Work ripple duct occlusion cover 3 is sleeved on the work bellows outside, and its left end baffle plate and the seam of left end pipe, right-hand member baffle plate and second are taken over the middle part seam.Said anticorrosion bellows envelope 10 is sleeved on anticorrosion bellows 11 outsides; Its right end plate and right-hand member pipe the 13, the 3rd are taken over 12 seam; Its left end is sleeved on the right-hand member of work ripple duct occlusion cover 3; Form slipper seal with seal ring 8 with work ripple duct occlusion cover by sealing plate 7 and cooperate, this sealing guide structure helps improving the whole flex resistance of expansion pipe, anti-de-stabilise in reliable sealing.For ease of motion guide, take over 5 left end seam annular guide plate 4 first, the inwall Spielpassung of guide plate outer rim and work ripple duct occlusion cover 3.
Still referring to Fig. 1; The utility model working principle is following: left end pipe 1 and right-hand member pipe 13 inwardly elongation displacement simultaneously when pipeline receives thermal stretching; At this moment right-hand member pipe promotion guide plate 4 and work bellows 6 are to left dislocation, and the work bellows is in extended state, with the compensation conduit displacement; Meanwhile the right-hand member pipe promotes anticorrosion bellows 11, and anticorrosion bellows is in compressive state, accomplishes the inner chamber expansion that the compensation work bellows stretches and produces, and the work bellows is stretched and anticorrosion bellows is compressed synchronous completion, realizes the expansion pipe compensate function.In like manner, when pipeline was in contraction state, the work bellows was compressed to be stretched with anticorrosion bellows and accomplishes synchronously, realizes the expansion pipe compensate function.Because the interlock effect of work bellows and anticorrosion bellows has realized the cavity balance.Work ripple duct occlusion cover 3, anticorrosion bellows envelope 10 realize preventing that surface water or anticorrosion liquid substance to the corrosion of bellows, playing and isolating and protective action.Anticorrosion bellows does not bear pipe medium pressure and temperature when working, and it only plays sealing, isolation, compensating action, and therefore, anticorrosion bellows is merely 1/3 of work ripple pipe manufacturer cost, significantly reduces manufacture cost.
Claims (3)
1. pipeline expansion pipe; Comprise left end pipe, right-hand member pipe and work bellows in the formation; It is characterized in that: said expansion pipe comprises that also anticorrosion bellows (11), work ripple duct occlusion cover (3), anticorrosion bellows envelope (10), first are taken over (5), (12) are taken in second adapter (9), the 3rd; Wherein, first adapter, work bellows, second adapter, anticorrosion bellows, the 3rd are taken over seam successively and are sleeved on outside the right-hand member pipe, and said work ripple duct occlusion cover (3) is sleeved on outside the work bellows; Seam is taken over left end pipe and second respectively in its two ends; Said anticorrosion bellows envelope (10) is sleeved on outside the anticorrosion bellows, and its right-hand member and right-hand member pipe, the 3rd are taken over seam, and left end cooperates with the slipper seal of work ripple duct occlusion cover.
2. pipeline expansion pipe according to claim 1 is characterized in that: said first takes over the left end seam annular guide plate (4) of (5), the inwall Spielpassung of guide plate outer rim and work ripple duct occlusion cover (3).
3. pipeline expansion pipe according to claim 1 and 2; It is characterized in that: the left end of said anticorrosion bellows envelope (10) is sleeved on the right-hand member of work ripple duct occlusion cover (3), is provided with sealing plate (7) and seal ring (8) at anticorrosion bellows envelope left end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201748736U CN202125701U (en) | 2011-05-29 | 2011-05-29 | Expansion joint for pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201748736U CN202125701U (en) | 2011-05-29 | 2011-05-29 | Expansion joint for pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202125701U true CN202125701U (en) | 2012-01-25 |
Family
ID=45488767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201748736U Expired - Fee Related CN202125701U (en) | 2011-05-29 | 2011-05-29 | Expansion joint for pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202125701U (en) |
Cited By (3)
| 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 |
| CN105114746A (en) * | 2015-09-11 | 2015-12-02 | 江苏中远管道设备有限公司 | Direct-embedded double-bellow expansion joint |
| CN113803554A (en) * | 2021-09-30 | 2021-12-17 | 大连力聚能源设备有限公司 | Compensator with anti-corrosion function |
-
2011
- 2011-05-29 CN CN2011201748736U patent/CN202125701U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN105114746A (en) * | 2015-09-11 | 2015-12-02 | 江苏中远管道设备有限公司 | Direct-embedded double-bellow expansion joint |
| CN113803554A (en) * | 2021-09-30 | 2021-12-17 | 大连力聚能源设备有限公司 | Compensator with anti-corrosion function |
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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: 20120125 Termination date: 20150529 |
|
| EXPY | Termination of patent right or utility model |