CN204986184U - Expansion joint - Google Patents
Expansion joint Download PDFInfo
- Publication number
- CN204986184U CN204986184U CN201520749450.0U CN201520749450U CN204986184U CN 204986184 U CN204986184 U CN 204986184U CN 201520749450 U CN201520749450 U CN 201520749450U CN 204986184 U CN204986184 U CN 204986184U
- Authority
- CN
- China
- Prior art keywords
- bellows
- adapter
- expansion joint
- guide shell
- draft tube
- 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
- 230000001681 protective Effects 0.000 claims description 6
- 206010022114 Injury Diseases 0.000 abstract 1
- 206010037660 Pyrexia Diseases 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 description 2
- 238000005039 chemical industry Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses an expansion joint, be provided with the pressure balance hole on the draft tube, introduce the space between bellows and the draft tube through the pressure balance hole with the exhaust flow, make positive negative pressure offset to reduce the vibration, has improved life, be provided with the exhaust hole on the corrugated tube, through high -temperature steam through exhaust hole blowout, break the information of leaking to the bellows inlayer through this phenomenon and inform the user, the bellows outside is provided with the protection casing, can protect the bellows when going wrong, and the injury of reduction personnel, the draft tube both sides are provided with the strengthening rib, can strengthen expansion joint's stability, and this expansion joint has simple structure, safe and reliable's advantage, has wide market prospect.
Description
Technical field
The utility model relates to tubing field, particularly a kind of expansion joint.
Background technique
Expansion joint is the additional stress for compensating because temperature difference and mechanical vibration cause, and is arranged on a kind of flexible structure on container shell or pipeline.Due to it as a kind of can the elastic compensation element of free-extension, there is the advantages such as reliable operation, functional, compact structure, be widely used in the departments such as chemical industry, metallurgy, nuclear energy.Expansion joint is also compensator traditionally, or slip joint.By forming the bellows (a kind of elastic element) of its operative body and holding the annexes such as pipe, support, flange, conduit to form.Expansion joint is the additional stress in order to compensate because temperature difference and mechanical vibration cause, and is arranged on a kind of flexible structure on container shell or pipeline.Utilize effective dilatation of its operative body bellows, to absorb pipeline, conduit, container etc. by reason and the dimensional changes produced such as expanding with heat and contract with cold, or axial, the transverse direction of compensation pipes, conduit, container etc. and angular displacement.Also can be used in noise-and-vibration-reduction, heat supply, when heating up to prevent heat supply pipeline, pipe deforming or destruction is caused due to thermal stretching or temperature stress, need to arrange compensator on pipeline, to compensate the thermal stretching of pipeline, thus the stress reducing tube wall and the active force acted on valve member or supporting structure.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of expansion joint, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the utility model provides following technological scheme: a kind of expansion joint, comprise bellows, adapter, guide shell and flange, guide shell is welded with outside described bellows, the packing with thermal insulating properties is provided with between described bellows and guide shell, described adapter is divided into left adapter and right adapter, described left adapter is connected with bellows respectively with right adapter, described left adapter and right adapter are connected by gasket ring with between guide shell, the left adapter of the upper and lower both sides of described bellows and left adapter are by otic placode and Stud connection, the mouth of pipe of described bellows is provided with flange.
Preferably, described guide shell is provided with pressure compensation opening.
Preferably, described bellows is provided with exhaust port, the degree of depth of described exhaust port is less than total wall thickness of bellows.
Preferably, described bellows arranged outside has protective housing.
Preferably, described guide shell both sides are provided with stiffening rib.
The beneficial effect of above technological scheme is adopted to be: a kind of expansion joint of the utility model structure, described guide shell is provided with pressure compensation opening, waste gas streams introduced the space between bellows and guide shell by pressure compensation opening, positive/negative pressure is offset, thus reduce vibration, improve working life, described bellows is provided with exhaust port, sprayed by exhaust port by high-temperature steam, by this phenomenon the information notification user of bellows internal layer rupture and leakage, described bellows arranged outside has protective housing, can protect bellows when going wrong, minimizing personnel injure, described guide shell both sides are provided with stiffening rib, the stability of expansion joint can be strengthened, it is simple that this expansion joint has structure, safe and reliable advantage, there are wide market prospects.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of expansion joint of the utility model;
Fig. 2 is the structural representation of protective housing;
Wherein, 1-bellows, the left adapter of 2-, the right adapter of 3-, 4-guide shell, 5-flange, 6-gasket ring, 7-otic placode, 8-stud, 9-pressure compensation opening, 10-exhaust port, 11-protective housing, 12-stiffening rib.
Embodiment
Preferred implementation of the present utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows embodiment of the present utility model: a kind of expansion joint, comprise bellows 1, adapter, guide shell 4 and flange 5, guide shell 4 is welded with outside described bellows 1, the packing with thermal insulating properties is provided with between described bellows 1 and guide shell 4, described adapter is divided into left adapter 2 and right adapter 3, described left adapter 2 is connected with bellows 1 respectively with right adapter 3, described left adapter 2 and being connected by gasket ring 6 between right adapter 3 with guide shell 4, the left adapter 2 of described bellows about 1 both sides is connected with stud 8 by otic placode 7 with left adapter 3, the mouth of pipe of described ripple 1 pipe is provided with flange 5.
In addition, as shown in Figure 2, described guide shell 4 is provided with pressure compensation opening 9, described bellows 1 is provided with exhaust port 10, the degree of depth of described exhaust port 10 is less than total wall thickness of bellows 1, and described bellows 1 arranged outside has protective housing 11, and described guide shell 4 both sides are provided with stiffening rib 12.
Based on above-mentioned, the utility model provides a kind of expansion joint, described guide shell is provided with pressure compensation opening, waste gas streams introduced the space between bellows and guide shell by pressure compensation opening, positive/negative pressure is offset, thus reduce vibration, improve working life, described bellows is provided with exhaust port, sprayed by exhaust port by high-temperature steam, by this phenomenon the information notification user of bellows internal layer rupture and leakage, described bellows arranged outside has protective housing, can protect bellows when going wrong, minimizing personnel injure, described guide shell both sides are provided with stiffening rib, the stability of expansion joint can be strengthened, it is simple that this expansion joint has structure, safe and reliable advantage, there are wide market prospects.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. an expansion joint, it is characterized in that, comprise bellows, adapter, guide shell and flange, guide shell is welded with outside described bellows, the packing with thermal insulating properties is provided with between described bellows and guide shell, described adapter is divided into left adapter and right adapter, described left adapter is connected with bellows respectively with right adapter, described left adapter and right adapter are connected by gasket ring with between guide shell, the left adapter of the upper and lower both sides of described bellows and left adapter are by otic placode and Stud connection, and the mouth of pipe of described bellows is provided with flange.
2. a kind of expansion joint according to claim 1, is characterized in that, described guide shell is provided with pressure compensation opening.
3. a kind of expansion joint according to claim 1, is characterized in that, described bellows is provided with exhaust port, and the degree of depth of described exhaust port is less than total wall thickness of bellows.
4. a kind of expansion joint according to claim 1, is characterized in that, described bellows arranged outside has protective housing.
5. a kind of expansion joint according to claim 1, is characterized in that, described guide shell both sides are provided with stiffening rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749450.0U CN204986184U (en) | 2015-09-24 | 2015-09-24 | Expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749450.0U CN204986184U (en) | 2015-09-24 | 2015-09-24 | Expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986184U true CN204986184U (en) | 2016-01-20 |
Family
ID=55120552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520749450.0U Expired - Fee Related CN204986184U (en) | 2015-09-24 | 2015-09-24 | Expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204986184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135138A (en) * | 2015-09-24 | 2015-12-09 | 江苏广通管业制造有限公司 | Expansion joint |
-
2015
- 2015-09-24 CN CN201520749450.0U patent/CN204986184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135138A (en) * | 2015-09-24 | 2015-12-09 | 江苏广通管业制造有限公司 | Expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |