CN202733300U - All-rounder bellow expansion joint - Google Patents
All-rounder bellow expansion joint Download PDFInfo
- Publication number
- CN202733300U CN202733300U CN 201220264618 CN201220264618U CN202733300U CN 202733300 U CN202733300 U CN 202733300U CN 201220264618 CN201220264618 CN 201220264618 CN 201220264618 U CN201220264618 U CN 201220264618U CN 202733300 U CN202733300 U CN 202733300U
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- CN
- China
- Prior art keywords
- expansion joint
- bellow
- metal bellows
- fixedly connected
- rounder
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Abstract
The utility model provides an all-rounder bellow expansion joint and relates to the technical field of the expansion joint. A filter pipe (2) is tightly placed on the outer wall of the two ends of a nozzle (1) of the all-rounder bellow expansion joint. Two outer annular plates (8) are placed on the filter pipe (2). An outer sleeve (5) is placed on the outer rim of the two outer annular plates(8). A metal bellow (7) is placed between the outer annular plate(8).The two ends of the metal bellow(7) are fixedly connected with the inner wall of the two sides of the metal bellow(2). The two outside walls of the metal bellow (7) are connected with the inner wall of the outer annular plate (8). Stiffening annular plates (6) are placed inside the valley of the metal bellow (7). A draft tube (9) is placed inside the metal bellow (7). The two ends of the draft tube (9) are fixedly connected with the nozzle (1). By adopting bellows structure, the all-rounder bellow expansion joint has the advantage of being scientific and seasonal in design, not easy to leak, easy to maintain, high in loading capacity, long in service life, big in compensation dosage, and capable of absorbing bigger displacement from each direction.
Description
Technical field:
The utility model relates to the expansion joint technical field, is specifically related to a kind of universal corrugated expansion joint for pressure steel pipe of hydraulic power station.
Background technique:
Pressure steel pipe of hydropower station multiplex behind water channeling type and dam the formula power station, be the water pipe of current being introduced water turbine by reservoir, forebay or surge-chamber.Because penstock bears larger internal water pressure and water attack pressure, pipe downstream is Power Plant, and its Operation safety is very big on the impact in power station.
When the hydropower station pressure pipeline exposed penstock designs, often compensator need be set, to reduce the temperature stress of steel pipe.The many employings of traditional compensator are telescopic, slip-type expansion joint is divided into again unidirectional sleeve and two kinds of patterns of two-way sleeve, when latter's decapacitation adaptive temperature changes steel pipe vertically move with correcting mounting error outside, can also adapt to a certain extent the steel pipe angular deflection that the subsidence of foundations causes, but owing to being subjected to the impact of sealing packing quality, installation quality and the connecting bolt discontinuity of expansion joint, tend to occur seepage.
The model utility content:
The purpose of this utility model provides a kind of universal type corrugated expansion joint, and it adopts the bellows structure formula, and design science is reasonable, is difficult for leaking, easy care, bearing capacity is high, and is corrosion-resistant, long service life, and can absorb various directions than big displacement quantity, and compensation rate is larger.
In order to solve the existing problem of background technique, the utility model is by the following technical solutions: it comprises adapter 1, transitional pipe segment 2, connects otic placode 3, pull bar 4, outer sleeve 5, enforced loop plane 6, metal bellows 7, outer ring plate 8 and guide shell 9, the two end part outer wall of adapter 1 closely is provided with transitional pipe segment 2, the outer rim that is provided with two outer ring plate 8, two outer ring plates 8 on the transitional pipe segment 2 is provided with outer sleeve 5; Be provided with metal bellows 7 between the outer ring plate 8, and the two ends of metal bellows 7 are fixedly connected with the inwall of both sides transitional pipe segment 2,7 liang of outer side walls of metal bellows are fixedly connected with the inwall of outer ring plate 8, be provided with enforced loop plane 6 in the trough of metal bellows 7, metal bellows 7 inside are provided with guide shell 9, and the two ends of guide shell 9 are fixedly connected with adapter 1; Transitional pipe segment 2 outer installment have the otic placode 3 of connection, and connect by pull bar 4 between the connection otic placode 3 of both sides.
Principle of the present utility model is: owing to having adopted two sections metal bellowss 7, and all be provided with enforced loop plane 6 in the trough of bellows, therefore can absorb larger axial displacement, lateral displacement and angular displacement, function is more, and it is long to have a life-span, the advantage that bearing capacity is high.Owing to adopting enclosed construction, metal bellows 7 is difficult for being encroached on by external environment, is difficult for leaking, and is non-maintaining.
The utility model adopts the bellows structure formula, and design science is reasonable, is difficult for leaking, and non-maintaining, bearing capacity is high, and is corrosion-resistant, long service life, and can absorb various directions than big displacement quantity, and compensation rate is larger.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
With reference to Fig. 1, this embodiment is by the following technical solutions: it comprises takes over 1, transitional pipe segment 2, connects otic placode 3, pull bar 4, outer sleeve 5, enforced loop plane 6, metal bellows 7, outer ring plate 8 and guide shell 9, the two end part outer wall of adapter 1 closely is provided with transitional pipe segment 2, the outer rim that is provided with two outer ring plate 8, two outer ring plates 8 on the transitional pipe segment 2 is provided with outer sleeve 5; Be provided with metal bellows 7 between the outer ring plate 8, and the two ends of metal bellows 7 are fixedly connected with the inwall of both sides transitional pipe segment 2,7 liang of outer side walls of metal bellows are fixedly connected with the inwall of outer ring plate 8, be provided with enforced loop plane 6 in the trough of metal bellows 7, metal bellows 7 inside are provided with guide shell 9, and the two ends of guide shell 9 are fixedly connected with adapter 1; Transitional pipe segment 2 outer installment have the otic placode 3 of connection, and connect by pull bar 4 between the connection otic placode 3 of both sides.
The principle of this embodiment is: owing to having adopted two sections metal bellowss 7, and all be provided with enforced loop plane 6 in the trough of bellows, therefore can absorb larger axial displacement, lateral displacement and angular displacement, function is more, and it is long to have a life-span, the advantage that bearing capacity is high.Owing to adopting enclosed construction, metal bellows 7 is difficult for being encroached on by external environment, is difficult for leaking, and is non-maintaining.
This embodiment adopts the bellows structure formula, and design science is reasonable, is difficult for leaking, and non-maintaining, bearing capacity is high, and is corrosion-resistant, long service life, and can absorb various directions than big displacement quantity, and compensation rate is larger.
Claims (1)
1. universal type corrugated expansion joint, it is characterized in that it comprises adapter (1), transitional pipe segment (2), connects otic placode (3), pull bar (4), outer sleeve (5), enforced loop plane (6), metal bellows (7), outer ring plate (8) and guide shell (9), the two end part outer wall of taking over (1) closely is provided with transitional pipe segment (2), be provided with two outer ring plates (8) on the transitional pipe segment (2), the outer rim of two outer ring plates (8) is provided with outer sleeve (5); Be provided with metal bellows (7) between the outer ring plate (8), and the two ends of metal bellows (7) are fixedly connected with the inwall of both sides transitional pipe segment (2), metal bellows (7) two outer side walls are fixedly connected with the inwall of outer ring plate (8), be provided with enforced loop plane (6) in the trough of metal bellows (7), metal bellows (7) inside is provided with guide shell (9), and the two ends of guide shell (9) are fixedly connected with adapter (1); Transitional pipe segment (2) outer installment has connection otic placode (3), and connects by pull bar (4) between the connection otic placode (3) of both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264618 CN202733300U (en) | 2012-06-07 | 2012-06-07 | All-rounder bellow expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264618 CN202733300U (en) | 2012-06-07 | 2012-06-07 | All-rounder bellow expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733300U true CN202733300U (en) | 2013-02-13 |
Family
ID=47658999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220264618 Expired - Fee Related CN202733300U (en) | 2012-06-07 | 2012-06-07 | All-rounder bellow expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453271A (en) * | 2013-09-11 | 2013-12-18 | 南京晨光东螺波纹管有限公司 | Low-pressure water-feeding expansion joint for nuclear station |
| CN104132214A (en) * | 2014-07-10 | 2014-11-05 | 江苏百新波纹管有限公司 | Duplex pipeline compensator |
-
2012
- 2012-06-07 CN CN 201220264618 patent/CN202733300U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453271A (en) * | 2013-09-11 | 2013-12-18 | 南京晨光东螺波纹管有限公司 | Low-pressure water-feeding expansion joint for nuclear station |
| CN103453271B (en) * | 2013-09-11 | 2016-10-05 | 南京晨光东螺波纹管有限公司 | Nuclear power station low pressure feed water expansion joint |
| CN104132214A (en) * | 2014-07-10 | 2014-11-05 | 江苏百新波纹管有限公司 | Duplex pipeline compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140607 |