CN105135138A - Expansion joint - Google Patents
Expansion joint Download PDFInfo
- Publication number
- CN105135138A CN105135138A CN201510618913.4A CN201510618913A CN105135138A CN 105135138 A CN105135138 A CN 105135138A CN 201510618913 A CN201510618913 A CN 201510618913A CN 105135138 A CN105135138 A CN 105135138A
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- adapter
- guide shell
- bellows
- corrugated pipe
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/022—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with a single corrugation
Abstract
The invention discloses an expansion joint. The expansion joint adopts the scheme that pressure balance holes are formed in a flow guide cylinder; exhaust flow is introduced into the space between a corrugated pipe and the flow guide cylinder through the pressure balance holes to offset positive pressure and negative pressure, so that the vibration is reduced, and the service life is prolonged; exhaust holes are formed in the corrugated pipe, and high-temperature steam is sprayed out through the exhaust holes, so that the information of the breakage and leakage of the inner layer of the corrugated pipe can be obtained by a user; a protective cover is arranged on the outer side of the corrugated pipe to protect the corrugated pipe when problems occur, so that harm to personnel is reduced; reinforcing ribs are arranged on the two sides of the flow guide cylinder, so that the stability of the expansion joint can be improved. The expansion joint has the advantages of being simple in structure, safe and reliable, and has a wide market prospect.
Description
Technical field
The present invention 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.
Summary of the invention
Technical problem to be solved by this invention 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 invention provides following technological scheme: a kind of expansion joint, comprise bellows, adapter, guide shell and flange, guide shell is welded with outside described corrugated tube, the packing with thermal insulating properties is provided with between described corrugated tube and guide shell, described adapter is divided into left adapter and right adapter, described left adapter is connected with corrugated tube 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 corrugated tube 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 structure of the present invention, 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 corrugated tube 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 present invention;
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
The preferred embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows the specific embodiment of the present invention: a kind of expansion joint, comprise bellows 1, adapter, guide shell 4 and flange 5, guide shell 4 is welded with outside described corrugated tube 1, the packing with thermal insulating properties is provided with between described corrugated tube 1 and guide shell 4, described adapter is divided into left adapter 2 and right adapter 3, described left adapter 2 is connected with corrugated tube 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 corrugated tube 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 invention 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 corrugated tube 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 the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
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 corrugated tube, the packing with thermal insulating properties is provided with between described corrugated tube and guide shell, described adapter is divided into left adapter and right adapter, described left adapter is connected with corrugated tube 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 corrugated tube 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 |
|---|---|---|---|
| CN201510618913.4A CN105135138A (en) | 2015-09-24 | 2015-09-24 | Expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618913.4A CN105135138A (en) | 2015-09-24 | 2015-09-24 | Expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105135138A true CN105135138A (en) | 2015-12-09 |
Family
ID=54720604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510618913.4A Pending CN105135138A (en) | 2015-09-24 | 2015-09-24 | Expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105135138A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575688A (en) * | 2017-10-13 | 2018-01-12 | 江苏恒润波纹管有限公司 | A kind of expansion joint |
| CN107606370A (en) * | 2017-10-13 | 2018-01-19 | 江苏恒润波纹管有限公司 | A kind of bellows component with slip-preventing structure |
| CN110064322A (en) * | 2019-05-05 | 2019-07-30 | 张英华 | A kind of mixing equipment with material guide mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2851793Y (en) * | 2005-07-20 | 2006-12-27 | 卢秉威 | Direct-buried corrugated compensator without fixed bearing |
| CN201416725Y (en) * | 2009-06-15 | 2010-03-03 | 常州市乐源金属软管有限公司 | Isolated corrosion-proof metal corrugated pipe expansion joint |
| CN202252581U (en) * | 2011-10-29 | 2012-05-30 | 重庆川仪自动化股份有限公司 | Double-insulated high-temperature-resistant metal bellow expansion joint |
| CN202660138U (en) * | 2012-05-29 | 2013-01-09 | 滕州市绿原机械制造有限责任公司 | Pressure-balance corrugated expansion joint for straight pipe |
| CN204986184U (en) * | 2015-09-24 | 2016-01-20 | 江苏广通管业制造有限公司 | Expansion joint |
-
2015
- 2015-09-24 CN CN201510618913.4A patent/CN105135138A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2851793Y (en) * | 2005-07-20 | 2006-12-27 | 卢秉威 | Direct-buried corrugated compensator without fixed bearing |
| CN201416725Y (en) * | 2009-06-15 | 2010-03-03 | 常州市乐源金属软管有限公司 | Isolated corrosion-proof metal corrugated pipe expansion joint |
| CN202252581U (en) * | 2011-10-29 | 2012-05-30 | 重庆川仪自动化股份有限公司 | Double-insulated high-temperature-resistant metal bellow expansion joint |
| CN202660138U (en) * | 2012-05-29 | 2013-01-09 | 滕州市绿原机械制造有限责任公司 | Pressure-balance corrugated expansion joint for straight pipe |
| CN204986184U (en) * | 2015-09-24 | 2016-01-20 | 江苏广通管业制造有限公司 | Expansion joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575688A (en) * | 2017-10-13 | 2018-01-12 | 江苏恒润波纹管有限公司 | A kind of expansion joint |
| CN107606370A (en) * | 2017-10-13 | 2018-01-19 | 江苏恒润波纹管有限公司 | A kind of bellows component with slip-preventing structure |
| CN110064322A (en) * | 2019-05-05 | 2019-07-30 | 张英华 | A kind of mixing equipment with material guide mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |
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| WD01 | Invention patent application deemed withdrawn after publication |