CN202521143U - Pulverized coal expansion joint - Google Patents
Pulverized coal expansion joint Download PDFInfo
- Publication number
- CN202521143U CN202521143U CN 201220135498 CN201220135498U CN202521143U CN 202521143 U CN202521143 U CN 202521143U CN 201220135498 CN201220135498 CN 201220135498 CN 201220135498 U CN201220135498 U CN 201220135498U CN 202521143 U CN202521143 U CN 202521143U
- Authority
- CN
- China
- Prior art keywords
- pipe
- left end
- adapter
- hand member
- plate
- 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
Images
Abstract
The utility model discloses a pulverized coal expansion joint which comprises a connection pipe, an annular plate, an end pipe, a heat insulation layer, a protection frame, a corrugated pipe and a flow guide pipe. The corrugated pipe is fixed onto the protection frame, the annular plate is connected with the end pipe which is connected with the corrugated pipe, the connection pipe is connected with the annular plate which is connected with the flow guide pipe, and a certain gap is reserved between the connection pipe and the flow guide pipe. The pulverized coal expansion joint is characterized by further comprising a retainer ring mounted between the connection pipe and the flow guide pipe to seal the gap between the connection pipe and the flow guide pipe, and the connection pipe, the annular plate, the end pipe, the retainer ring, the flow guide pipe and the corrugated pipe form a sealed space filled with the heat insulation layer. The gap reserved between the flow guide pipe and the connection pipe is used for accommodating expansion of the heat insulation layer and deformation of the corrugated pipe, and using the retainer ring made of elastic materials to seal the gap between the flow guide pipe and the connection pipe can effectively prevent pulverized coal from entering the corrugated pipe while a compensation function of the gap is unaffected.
Description
Technical field
The utility model relates to a kind of expansion joint, particularly a kind of expansion of metal joint.
Background technique
The additional stress that expansion joint causes because of temperature difference and mechanical vibration for compensation, and be arranged on a kind of flexible structure on container shell or the pipeline.Because it is as a kind of elastic compensating element that can freely stretch, advantages such as reliable operation, functional, compact structure have been widely used in departments such as chemical industry, metallurgy, nuclear energy.Expansion joint also is slip joint traditionally; Or corrugated expansion joint; Be that effective dilatation in order to the elastic element that utilizes corrugated expansion joint absorbs pipeline, conduit or the container a kind of compensation device by former thereby the dimensional changes that produces such as expand with heat and contract with cold, belong to a kind of compensating element.Can be to axially, laterally and the absorption of angular displacement, be used for adding thermal walking, mechanical displacement absorbed oscillation, reduce noise etc. in pipeline, equipment and system.The additional stress that expansion joint causes because of temperature difference and mechanical vibration for compensation, and be arranged on a kind of flexible structure on container shell or the pipeline.Because it is as a kind of elastic compensating element that can freely stretch, advantages such as reliable operation, functional, compact structure have been widely used in departments such as chemical industry, metallurgy, nuclear energy.The expansion joint that on container, adopts has various ways, with regard to the shape of ripple, uses the most extensively with the U-shaped expansion joint, secondly also has Ω shape and C shape etc.And the expansion joint that on pipeline, adopts has universal, pressure balance type, hinge type and universal joint formula etc. again with regard to structure compensation.Bellows expansion joint is a kind of expansion joint of processing with metal bellows.It can be flexible along axial direction, also allows a small amount of crooked.The expansion joint that is used for pulverized coal channel is because sealing is not enough, and often coal dust enters into bellows easily, influences the using effect and the working life of expansion joint.
The model utility content
The utility model technical problem to be solved is the deficiency to above-mentioned existing technology, and a kind of coal dust expansion joint of good airproof performance is provided.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is: a kind of coal dust expansion joint comprises left end pipe, bellows, right-hand member pipe, left side adapter, right adapter, left ring flat-plate, right ring flat-plate and pull bar; The two ends of pull bar are fixedly mounted on respectively on left end pipe and the right-hand member pipe through otic placode; Bellows is connected between left end pipe and the right-hand member pipe, forms outer tube; Left side adapter, outer tube and right the adapter are connected successively, and a left side is taken over and the outer coaxial tube setting, and the right-hand member that a left side is taken over stretches in the outer tube, the right adapter and the outer coaxial tube setting, and the left end of right adapter stretches in the outer tube; Do not contact between right-hand member that a left side is taken over and the right left end of taking over, form extendable room, left ring flat-plate is arranged between left end pipe and a left side take over, and between left ring flat-plate and the left end pipe and between left ring flat-plate and the left adapter all for being tightly connected; Right ring flat-plate is arranged between right-hand member pipe and right the adapter, and between right ring flat-plate and the right-hand member pipe and between right ring flat-plate and the right side adapter all for being tightly connected; It is characterized in that: also comprise guide plate and back-up ring, said honeycomb duct is arranged in the outer tube, and the right-hand member that a left side is taken over all is positioned at honeycomb duct with the right left end of taking over; Back-up ring is separately positioned between left end pipe and the left side adapter, and between right adapter and the right-hand member pipe.
As the further improved technological scheme of the utility model, the said right left end of taking over is the arc tips that is bent upwards, and the upper end of arc tips closely contacts with guide plate, is provided with a back-up ring between right adapter and the right-hand member pipe.
As the further improved technological scheme of the utility model, be provided with a back-up ring between left side adapter and the left end pipe.
As the further improved technological scheme of the utility model, said back-up ring adopts elasticity to be prone to sealing material.
As the further improved technological scheme of the utility model, said back-up ring material therefor is a rubber.
In the utility model structure; Leave the gap between honeycomb duct and the adapter, be used to hold the expansion of thermal insulation layer and the deformation of bellows, adopt the back-up ring of elastic material to seal the gap between honeycomb duct and the adapter; Can prevent effectively that coal dust from getting in the bellows, do not influence the compensating action in gap simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
Embodiment
Referring to Fig. 1, this coal dust expansion joint comprises left end pipe 1, bellows 2, right-hand member pipe 3, left side adapter 4, right adapter 5, left ring flat-plate 7, right ring flat-plate 8 and pull bar 9; The two ends of pull bar 9 are fixedly mounted on respectively on left end pipe 1 and the right-hand member pipe 3 through otic placode 10; Bellows 2 is connected between left end pipe 1 and the right-hand member pipe 3, forms outer tube; A left side takes over 4, outer tube and rightly take over 5 and is connected successively, a left side take over 4 with the outer coaxial tube setting, and a left side takes over 4 right-hand member and stretches in the outer tube, right take over 5 with the outer coaxial tube setting, and the left end of right adapter 5 stretches in the outer tube; A left side is taken over 4 right-hand member and right and is taken between 5 the left end and do not contact, and forms extendable room, and left ring flat-plate 7 is arranged on left end pipe 1 and a left side is taken between 4, and between left ring flat-plate 7 and the left end pipe 1 and between left ring flat-plate 7 and the left adapter 4 all for being tightly connected; Right ring flat-plate 8 is arranged on right-hand member pipe 3 and right the adapter between 5, and between right ring flat-plate 5 and the right-hand member pipe 3 and between right ring flat-plate 8 and the right side adapter 5 all for being tightly connected; Also comprise guide plate 11 and back-up ring 6, said honeycomb duct 11 is arranged in the outer tube, and the left end of the right-hand member of left side adapter 4 and right adapter 5 all is positioned at honeycomb duct 11; Back-up ring 6 is separately positioned on left end pipe 1 and a left side is taken between 4, and between right adapter 5 and the right-hand member pipe 3; The left end of right side adapter 5 is the arc tips 12 that is bent upwards, and the upper end of arc tips 12 closely contacts with guide plate 11, is provided with 1 back-up ring 6 between right adapter 5 and the right-hand member pipe 3, is provided with 2 back-up rings 6 between left side adapter 4 and the left end pipe 1, and the material of back-up ring 6 employings is a rubber.This coal dust expansion joint leaves the gap at honeycomb duct and between taking over; Be used to hold the expansion of thermal insulation layer and the deformation of bellows; Adopt the back-up ring of elastic material to seal the gap between honeycomb duct and the adapter, can prevent effectively that coal dust from getting in the bellows, do not influence the compensating action in gap simultaneously.
Claims (5)
1. a coal dust expansion joint comprises that (4) are taken on left end pipe (1), bellows (2), right-hand member pipe (3), a left side, (5), left ring flat-plate (7), right ring flat-plate (8) and pull bar (9) are taken in the right side; The two ends of pull bar (9) are fixedly mounted on respectively on left end pipe (1) and the right-hand member pipe (3) through otic placode (10); Bellows (2) is connected between left end pipe (1) and the right-hand member pipe (3), forms outer tube; A left side is taken over (4), outer tube and right take over (5) and is connected successively, and (4) and outer coaxial tube setting are taken in a left side, and the right-hand member that (4) are taken on a left side stretches in the outer tube, rightly takes over (5) and outer coaxial tube setting, and the left end of right adapter (5) stretches in the outer tube; Do not contact between the left end of the right-hand member of left side adapter (4) and right adapter (5); Form extendable room; Left side ring flat-plate (7) is arranged on left end pipe (1) and takes between (4) with a left side, and between left ring flat-plate (7) and the left end pipe (1) and between left ring flat-plate (7) and the left adapter (4) all for being tightly connected; Right ring flat-plate (8) is arranged on right-hand member pipe (3) and takes between (5) with right, and between right ring flat-plate (5) and the right-hand member pipe (3) and between right ring flat-plate (8) and the right side adapter (5) all for being tightly connected; It is characterized in that: also comprise guide plate (11) and back-up ring (6), said honeycomb duct (11) is arranged in the outer tube, and the right-hand member of (4) is taken on a left side and the left end of right adapter (5) all is positioned at honeycomb duct (11); Back-up ring (6) is separately positioned between left end pipe (1) and the honeycomb duct (11), and right the adapter between (5) and the honeycomb duct (11).
2. coal dust expansion joint according to claim 1; It is characterized in that: the said right left end of taking over (5) is the arc tips (12) that is bent upwards; The upper end of arc tips (12) closely contacts with guide plate (11), and right the adapter between (5) and the right-hand member pipe (3) is provided with 1 back-up ring (6).
3. coal dust expansion joint according to claim 1 is characterized in that: a left side is taken between (4) and the left end pipe (1) and is provided with 2 back-up rings (6).
4. according to claim 1 or 2 or 3 described coal dust expansion joints, it is characterized in that said back-up ring (6) adopts elasticity to be prone to sealing material.
5. according to claim 1 or 2 or 3 described coal dust expansion joints, it is characterized in that said back-up ring (6) material therefor is a rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135498 CN202521143U (en) | 2012-03-31 | 2012-03-31 | Pulverized coal expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135498 CN202521143U (en) | 2012-03-31 | 2012-03-31 | Pulverized coal expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202521143U true CN202521143U (en) | 2012-11-07 |
Family
ID=47104095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220135498 Expired - Fee Related CN202521143U (en) | 2012-03-31 | 2012-03-31 | Pulverized coal expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202521143U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620101A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Coal dust expansion joint |
| CN103883830A (en) * | 2014-03-20 | 2014-06-25 | 江苏曙光压力容器有限公司 | Bellows expansion joint for ash smoothing vertical pipe |
| CN103912751A (en) * | 2014-04-15 | 2014-07-09 | 南京宇行环保科技有限公司 | Expansion joint |
-
2012
- 2012-03-31 CN CN 201220135498 patent/CN202521143U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620101A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Coal dust expansion joint |
| CN103883830A (en) * | 2014-03-20 | 2014-06-25 | 江苏曙光压力容器有限公司 | Bellows expansion joint for ash smoothing vertical pipe |
| CN103883830B (en) * | 2014-03-20 | 2015-12-09 | 江苏曙光压力容器有限公司 | Along grey standpipe corrugated expansion joint |
| CN103912751A (en) * | 2014-04-15 | 2014-07-09 | 南京宇行环保科技有限公司 | Expansion joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102620101A (en) | Coal dust expansion joint | |
| CN201810925U (en) | Novel metal high-temperature expansion joint | |
| CN202521143U (en) | Pulverized coal expansion joint | |
| CN203890374U (en) | Cooling wall mounting structure with flexible casing | |
| CN201362640Y (en) | Sealing device for connecting edge roller and tin bath | |
| CN203223695U (en) | Non-restraint expansion joint | |
| CN202521147U (en) | Integrally-formed and wear-resistant metal corrugated pipe expansion joint | |
| CN202521140U (en) | High-temperature expansion joint | |
| CN102679081A (en) | Novel high-temperature resistant metal expansion joint | |
| CN202660137U (en) | Prefabricated direct burying high-temperature steam pipe compensation end cap | |
| CN107061914A (en) | A kind of bellows expansion joint | |
| CN202521146U (en) | Wear-resistant metal corrugated pipe expansion joint | |
| CN204785273U (en) | High compensation volume sleeve pipe compensator | |
| CN103925445A (en) | Internal-external pressure balance corrugated compensator | |
| CN102661467A (en) | Metal corrugated pipe expansion joint | |
| CN102635753A (en) | Compound type high-temperature expansion joint | |
| CN201891975U (en) | Non-metallic expansion joint | |
| CN204717214U (en) | The reducible multi-sealed sleeve expansion joint of a kind of thermal insulation layer | |
| CN202521137U (en) | Metal bellows expansion joint | |
| CN202521136U (en) | Dedicated diamond draw bar for compound expansion joint | |
| CN105257940A (en) | Expansion joint used for high temperature and high pressure pipeline | |
| CN201827587U (en) | Sealing corrugated compensator | |
| CN202521134U (en) | Double expansion joint with diamond draw bar | |
| CN207777864U (en) | A kind of expansion joint | |
| CN203162422U (en) | Internal-external pressure balanced corrugated compensator |
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: 20121107 Termination date: 20130331 |