CN1239836C - Pressure resistance bellows - Google Patents
Pressure resistance bellows Download PDFInfo
- Publication number
- CN1239836C CN1239836C CN 200410008781 CN200410008781A CN1239836C CN 1239836 C CN1239836 C CN 1239836C CN 200410008781 CN200410008781 CN 200410008781 CN 200410008781 A CN200410008781 A CN 200410008781A CN 1239836 C CN1239836 C CN 1239836C
- Authority
- CN
- China
- Prior art keywords
- pipe
- bellows
- pressure
- proportional valve
- cavity
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 208000002925 dental caries Diseases 0.000 claims 2
- 239000011148 porous material Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002356 single layer Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Diaphragms And Bellows (AREA)
Abstract
本发明公开了一种抗压波纹管，它包括管体及管体两端的接头，其中管体的管壁为两层以上的多层结构，管壁的相邻层之间通过管体两端的接头构成一密闭腔体，腔体内充满液体介质，相邻腔体之间设置有压强比例阀，最里侧腔体与波纹管管孔之间设置有同样的压强比例阀。本发明波纹管中所输送的流体压力可按一定比例分配给管壁的各个层上，因此在不增加单层壁厚的情况下可成倍提高波纹管的抗压强度，具有结构简单，制造方便，性能稳定、耐疲劳等优点。
The invention discloses a pressure-resistant corrugated pipe, which includes a pipe body and joints at both ends of the pipe body, wherein the pipe wall of the pipe body is a multi-layer structure with more than two layers, and the adjacent layers of the pipe wall pass through the joints at both ends of the pipe body. The joint forms a closed cavity, which is filled with liquid medium, and a pressure proportional valve is set between adjacent cavities, and the same pressure proportional valve is set between the innermost cavity and the bellows pipe hole. The fluid pressure conveyed in the corrugated pipe of the present invention can be distributed to each layer of the pipe wall in a certain proportion, so the compressive strength of the corrugated pipe can be doubled without increasing the wall thickness of the single layer, and it has a simple structure and is easy to manufacture. Convenient, stable performance, fatigue resistance and other advantages.
Description
技术领域technical field
本发明涉及一种波纹管，尤其涉及一种抗压波纹管。The invention relates to a bellows, in particular to a pressure-resistant bellows.
背景技术Background technique
在波纹管的应用当中，尤其是运输高温、高压液体介质的大口径波纹管，人们通常在波纹管上设置平衡膨胀节和波纹管补偿器来提高其抗压强度，防止爆炸和消除应力，但这种膨胀节、补偿器不仅加工工艺复杂、造价高，而且介质压力会使管道对固定支座产生很大的推力，给支座的设计带来困难，不易推广和普及，同时由于结构上的缺陷，波纹管受压不够平衡，应力消除不够理想，有时甚至无法满足使用要求；若通过增加单层壁厚的方式来提高其抗压强度，则造成波纹管强度很大而补偿量较小，且耐压强度提高量有限，此外还存在寿命短、稳定性差、不经济等缺点。In the application of bellows, especially large-diameter bellows for transporting high-temperature and high-pressure liquid media, people usually install balanced expansion joints and bellows compensators on the bellows to improve their compressive strength, prevent explosions and relieve stress, but This kind of expansion joint and compensator not only has complex processing technology and high cost, but also the medium pressure will cause the pipeline to generate a large thrust on the fixed support, which brings difficulties to the design of the support and is not easy to promote and popularize. Defects, the pressure of the bellows is not balanced enough, the stress relief is not ideal, and sometimes it cannot even meet the requirements of use; if the compressive strength is increased by increasing the thickness of the single layer, the strength of the bellows will be large and the compensation amount will be small. Moreover, the increase in compressive strength is limited, and there are also disadvantages such as short life, poor stability, and uneconomical.
发明内容Contents of the invention
针对现有技术的不足，本发明的目的在于提供一种抗压强度高、制造工艺简单、耐疲劳的抗压波纹管。Aiming at the deficiencies of the prior art, the object of the present invention is to provide a pressure-resistant corrugated pipe with high compressive strength, simple manufacturing process and fatigue resistance.
为实现上述目的，本发明抗压波纹管包括管体及管体两端的接头，其中管体的管壁为两层以上的多层结构，管壁的相邻层之间通过管体两端的接头构成一密闭腔体，腔体内充满液体介质，相邻腔体之间设置有压强比例阀，最里侧腔体与波纹管管孔之间设置有同样的压强比例阀。In order to achieve the above object, the pressure-resistant corrugated pipe of the present invention includes a pipe body and joints at both ends of the pipe body, wherein the pipe wall of the pipe body is a multi-layer structure with more than two layers, and the adjacent layers of the pipe wall pass through the joints at both ends of the pipe body. A closed cavity is formed, the cavity is filled with liquid medium, a pressure proportional valve is set between adjacent cavities, and the same pressure proportional valve is set between the innermost cavity and the bellows tube hole.
进一步地，所述压强比例阀设置在所述管壁相邻两腔体之间的管壁层上。Further, the pressure proportional valve is arranged on the pipe wall layer between two adjacent cavities of the pipe wall.
进一步地，所述压强比例阀为活塞式结构，活塞两端的工作面积不同，活塞两端的工作面各自与相邻两腔体中的一个腔体连通。Further, the pressure proportional valve is a piston-type structure, the working areas at both ends of the piston are different, and the working surfaces at both ends of the piston communicate with one of the two adjacent cavities.
进一步地，所述管壁为两层。Further, the pipe wall has two layers.
进一步地，所述管壁为三层。Further, the pipe wall has three layers.
将波纹管的管壁设置成多层，层与层之间构成一个个密闭的腔体，同时腔体内充满液体介质，并在相邻腔体之间设置压强比例阀后，使波纹管中所输送的流体的压力被按一定比例分配给管壁的各个层上，因此在不增加单层壁厚的情况下可成倍提高波纹管的抗压强度，本发明具有结构简单，制造方便，性能稳定、耐疲劳等优点。The pipe wall of the corrugated pipe is arranged in multiple layers, forming a closed cavity between the layers, and the cavity is filled with liquid medium at the same time, and after setting a pressure proportional valve between adjacent cavities, the bellows in the corrugated pipe The pressure of the transported fluid is distributed to each layer of the pipe wall in a certain proportion, so the compressive strength of the corrugated pipe can be doubled without increasing the wall thickness of the single layer. The invention has the advantages of simple structure, convenient manufacture, and excellent performance Stability, fatigue resistance and other advantages.
附图说明Description of drawings
图1为本发明第一实施例的结构示意图；Fig. 1 is the structural representation of the first embodiment of the present invention;
图2为本发明第二实施例的结构示意图。Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
具体实施方式Detailed ways
在第一实施例中，如图1所示，波纹管为双层，由内层波纹管2和外层波纹管3构成，其两端连接有法兰1，并通过密封件密封，在波纹管2与波纹管3之间的腔体5中装满液体介质，在波纹管2的端口处的管壁上设置有压强比例阀6，它的比例系数为1∶2，比例阀6的上工作面位于腔体5中，下工作面位于波纹管2的内腔4中；工作时，如果内腔4中的输送介质压为P1，即波纹管2内侧受到的压强为P1，则在比例阀的作用下，腔体5中的介质压为P1/2，即波纹管2外侧受到的压强为P1/2，因此波纹管2受到的实际压强为P1/2，而外层波纹管3内侧受到的压强为P1/2，外侧受到的大气压为P0，因此波纹管3受到的实际压强为(P1/2-P0)，若要波纹管2和3受到相同的压强，以最大限度的提高波纹管的抗压能力，经简单计算可得到压强比例阀的比例系数应为(P+P0)/2P。In the first embodiment, as shown in Figure 1, the corrugated pipe is double-layered, consisting of an inner corrugated pipe 2 and an outer corrugated pipe 3, flanges 1 are connected to both ends of the corrugated pipe, and are sealed by seals. The
在某些压力较大、双层抗压波纹管仍不能满足使用要求的应用场所，可通过增加波纹管的层数来降低每层波纹管受到的压力，以此来提高其整体抗压能力，如图2所示，在第二实施例中，波纹管为三层，在原有的两层基础上增加了外层波纹管7，在波纹管7和波纹管3之间安装有压强比例阀8，若要每层受到的压力相等，则经计算后可得压强比例阀的比例系数应为(2P0+P)/(2P+P0)。In some application places where the pressure is relatively high and the double-layer compression bellows still cannot meet the requirements of use, the pressure on each layer of bellows can be reduced by increasing the number of layers of bellows, so as to improve its overall compression resistance. As shown in Figure 2, in the second embodiment, the bellows are three layers, and the outer bellows 7 is added on the basis of the original two layers, and a pressure proportional valve 8 is installed between the bellows 7 and the bellows 3 , if the pressure on each layer is to be equal, the proportional coefficient of the pressure proportional valve should be (2P 0 +P)/(2P+P 0 ) after calculation.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410008781 CN1239836C (en) | 2004-03-19 | 2004-03-19 | Pressure resistance bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410008781 CN1239836C (en) | 2004-03-19 | 2004-03-19 | Pressure resistance bellows |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563776A CN1563776A (en) | 2005-01-12 |
| CN1239836C true CN1239836C (en) | 2006-02-01 |
Family
ID=34477721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410008781 Expired - Fee Related CN1239836C (en) | 2004-03-19 | 2004-03-19 | Pressure resistance bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1239836C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588705B (en) * | 2011-01-07 | 2013-09-18 | 李春光 | Pipeline compensator |
| CN104100778A (en) * | 2014-07-10 | 2014-10-15 | 镇江春环密封件集团有限公司 | Steel lining polytef composite pipe |
| CN105042259B (en) * | 2015-07-28 | 2017-03-08 | 中船动力有限公司 | Double-wall expansion joint and installation method |
| CN106051368B (en) * | 2016-06-01 | 2019-08-23 | 中国航空工业集团公司西安飞机设计研究所 | A kind of damping muffler with radial-axial compensation function |
| CN110249169B (en) * | 2016-12-13 | 2022-01-25 | 孟山都技术公司 | Expansion joint fitting for flammable liquids |
-
2004
- 2004-03-19 CN CN 200410008781 patent/CN1239836C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1563776A (en) | 2005-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113236539B (en) | Diaphragm compressor membrane head assembly | |
| CN205350688U (en) | Low -temperature vacuum pipeline with inside and outside compensation function | |
| CN208041429U (en) | A kind of piping lane monitored on-line gas pipeline expansion joint | |
| CN1239836C (en) | Pressure resistance bellows | |
| CN201420903Y (en) | Composite plastic tube with continuous steel mesh skeleton | |
| CN201651397U (en) | High-pressure heavy-caliber double gathering ball valve | |
| CN203297779U (en) | High-temperature-resistant anti-oxidation heat insulation petroleum pipe | |
| CN206268717U (en) | A kind of vacuum cold insulation system | |
| CN205101728U (en) | A plastics bush structure for serving as a contrast plastic steel pipe flange joint | |
| CN201407436Y (en) | Self-locking and self-adjustable pipe connection structure | |
| CN101900212A (en) | High-pressure large-caliber duplex gathering ball valve | |
| CN116717653A (en) | Low-temperature vacuum elbow | |
| CN201373134Y (en) | Metal sealing ball valve | |
| CN109915622B (en) | A three-way coaxial shaft operated valve | |
| CN100557293C (en) | Special sealing ring for pressure container | |
| CN206398231U (en) | A kind of elastomer connector | |
| CN208417929U (en) | A kind of scale compensator | |
| CN201561229U (en) | Multilayer sealed three-dimensional ball type expansion joint | |
| CN202812628U (en) | Corrosion resisting ultralow-temperature corrugated expansion joint | |
| CN208348724U (en) | A kind of Hermetical connecting structure of vacuum pipe | |
| CN202521147U (en) | Integrally-formed and wear-resistant metal corrugated pipe expansion joint | |
| CN105889513B (en) | A kind of sealing device of tubing vacuum sizing box | |
| CN203549247U (en) | Corrosion resistance compensator for chemical exhaust gas discharge system | |
| CN2458473Y (en) | Large diameter light hose | |
| CN222392197U (en) | Pressure-resistant metal hose |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG LEDING SYLPHON BELLOWS CO., LTD. Free format text: FORMER OWNER: INST. OF MECHANICS, CAS Effective date: 20091023 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091023 Address after: Yueqing City, Zhejiang Province, South Town hang dry mouth Industrial Zone Patentee after: Zhejiang Yueding Corrugated Tube Co., Ltd. Address before: No. 15 West Fourth Ring Road, Beijing, Haidian District Patentee before: Institute of Mechanics of Chinese Academy of Sciences |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060201 Termination date: 20170319 |