CN103174903A - Compound axial-type expansion joint - Google Patents
Compound axial-type expansion joint Download PDFInfo
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- CN103174903A CN103174903A CN2013101010383A CN201310101038A CN103174903A CN 103174903 A CN103174903 A CN 103174903A CN 2013101010383 A CN2013101010383 A CN 2013101010383A CN 201310101038 A CN201310101038 A CN 201310101038A CN 103174903 A CN103174903 A CN 103174903A
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- expansion joint
- corrugated pipe
- bellows
- compound axial
- pipe
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Abstract
The invention relates to the technical field of pipe network expansion joints, in particular to a compound axial-type expansion joint. The compound axial-type expansion joint comprises a corrugated pipe and connecting pipes arranged at two ends of the corrugated pipe, wherein a guide pipe is connected in the corrugated pipe, and an outer sheath is arranged on an outer layer of the corrugated pipe. The expansion joint made of the corrugated pipe can stretch out and draw back along the axis direction and also allows a little bend. Due to the fact that the guide pipe is connected in the corrugated pipe and the outer sheath is arranged on the outer layer of the corrugated pipe, the expansion joint is enabled to have advantages of high-temperature resistance, high-pressure resistance, anticorrosion and the like, unsafe factors such as instability of pressure resistance, being prone to delaminating and tearing and blast in an application process are avoided. The compound axial-type expansion joint is widely used in ships, central air-conditioning pumps, inlets and outlets of engines and the like, and service lives of devices and systems are effectively prolonged.
Description
Technical field
The present invention relates to pipe network expansion joint technical field, be specifically related to compound axial expansion joint.
Background technique
Expansion joint is mainly used in compensating the dilatation that pipeline produces because of temperature variation, also is used for pipeline and waits because installing to adjust the length compensation that needs, and mainly is divided into bent-tube boiler expansion joint, bellows expansion joint and sleeve pipe slip joint.Existing bellows expansion joint because of have conserve space, economical with materials is widely used.But because the design of existing bellows expansion joint is reasonable not, have complex structure, withstand voltage low, the shortcoming such as inconvenience is installed.
Summary of the invention
The purpose of this invention is to provide a kind of compound axial expansion joint reasonable in design, simple in structure, high pressure resistant, easy for installation.
In order to solve the existing problem of background technique, the present invention is by the following technical solutions: compound axial expansion joint, the connecting tube that comprises bellows and be located at described bellows two ends is connected to honeycomb duct in described bellows, and the skin of described bellows is provided with oversheath.
Further, described bellows is metal bellows.
Further, the diameter of described connecting tube is less than the diameter of bellows.
Further, described oversheath is the stainless steel oversheath.
The present invention has following beneficial effect: compound axial expansion joint of the present invention, and the connecting tube that comprises bellows and be located at the bellows two ends, the expansion joint that the present invention adopts bellows to make can be flexible along axial direction, also allows a small amount of crooked; And be connected to honeycomb duct in bellows, the skin of bellows is provided with oversheath, make expansion joint have the characteristics such as high temperature resistant, high pressure resistant, anticorrosion, avoid occurring the unsafe factors such as withstand voltage unstable, easy delamination is torn, explosion in application process, the present invention can be widely used in the import and export of boats and ships, central air-conditioner pump and motor etc., effectively the working life of extension device and system.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, compound axial expansion joint, the connecting tube 2 that comprises bellows 1 and be located at described bellows 1 two ends is connected to honeycomb duct 3 in described bellows 1, and the skin of described bellows 1 is provided with oversheath 4, and wherein, oversheath is fixed by bolt and bellows; In the present embodiment, the effect of employing bellows is can be flexible along axial direction, also allows a small amount of bending, and the while is conserve space, economical with materials effectively, reduces manufacture cost.
Described bellows 1 is metal bellows, in the present embodiment, adopts the effect of metal bellows to be to have the characteristics such as high temperature resistant, high pressure resistant, anticorrosion, thereby can protect equipment, protection of the environment, the working life of extension device and system.
The diameter of described connecting tube 2 is less than the diameter of bellows 1, in the present embodiment, adopt this structure be can directly be plugged in pipeline by the connecting tube at two ends, easy for installation.
Described oversheath 4 is the stainless steel oversheath, and in the present embodiment, the effect of employing stainless steel oversheath is further to improve to increase the service life the anti-corrosive properties of expansion joint.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, other modifications that those of ordinary skills make technological scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (4)
1. compound axial expansion joint, the connecting tube (2) that comprises bellows (1) and be located at described bellows (1) two ends is characterized in that, is connected to honeycomb duct (3) in described bellows (1), the skin of described bellows (1) is provided with oversheath (4).
2. compound axial expansion joint according to claim 1, is characterized in that, described bellows (1) is metal bellows.
3. compound axial expansion joint according to claim 1, is characterized in that, the diameter of described connecting tube (2) is less than the diameter of bellows (1).
4. compound axial expansion joint according to claim 1, is characterized in that, described oversheath (4) is the stainless steel oversheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101010383A CN103174903A (en) | 2013-03-27 | 2013-03-27 | Compound axial-type expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101010383A CN103174903A (en) | 2013-03-27 | 2013-03-27 | Compound axial-type expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103174903A true CN103174903A (en) | 2013-06-26 |
Family
ID=48634958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101010383A Pending CN103174903A (en) | 2013-03-27 | 2013-03-27 | Compound axial-type expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103174903A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523171A (en) * | 2013-09-12 | 2014-01-22 | 南通明德重工有限公司 | Chemical tanker ballast system glass reinforced plastic pipe arrangement method |
| CN105545441A (en) * | 2016-01-27 | 2016-05-04 | 徐磊 | Exhaust manifold with compensation function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2251094Y (en) * | 1996-04-18 | 1997-04-02 | 周德孟 | Corrosion-proof bellows expansion section |
| CN2314213Y (en) * | 1997-10-27 | 1999-04-14 | 江苏百新集团有限公司 | Fully-buried high-corrosion-resistance corrugated pipe expansion joint |
| CN2314215Y (en) * | 1997-12-30 | 1999-04-14 | 机械工业部沈阳仪器仪表工艺研究所 | Corrugated compensator with sealing device |
| CN201547404U (en) * | 2009-09-29 | 2010-08-11 | 西部金属材料股份有限公司 | Corrosion-resistant heat-preserving metal pipe with expansion joint |
| CN202812627U (en) * | 2012-05-29 | 2013-03-20 | 滕州市绿原机械制造有限责任公司 | High-temperature expansion joint |
| CN203223698U (en) * | 2013-03-27 | 2013-10-02 | 江苏星光波纹管有限公司 | Multiple axial expansion joint |
-
2013
- 2013-03-27 CN CN2013101010383A patent/CN103174903A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2251094Y (en) * | 1996-04-18 | 1997-04-02 | 周德孟 | Corrosion-proof bellows expansion section |
| CN2314213Y (en) * | 1997-10-27 | 1999-04-14 | 江苏百新集团有限公司 | Fully-buried high-corrosion-resistance corrugated pipe expansion joint |
| CN2314215Y (en) * | 1997-12-30 | 1999-04-14 | 机械工业部沈阳仪器仪表工艺研究所 | Corrugated compensator with sealing device |
| CN201547404U (en) * | 2009-09-29 | 2010-08-11 | 西部金属材料股份有限公司 | Corrosion-resistant heat-preserving metal pipe with expansion joint |
| CN202812627U (en) * | 2012-05-29 | 2013-03-20 | 滕州市绿原机械制造有限责任公司 | High-temperature expansion joint |
| CN203223698U (en) * | 2013-03-27 | 2013-10-02 | 江苏星光波纹管有限公司 | Multiple axial expansion joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523171A (en) * | 2013-09-12 | 2014-01-22 | 南通明德重工有限公司 | Chemical tanker ballast system glass reinforced plastic pipe arrangement method |
| CN105545441A (en) * | 2016-01-27 | 2016-05-04 | 徐磊 | Exhaust manifold with compensation function |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |