CN203115332U - Reinforced multi-layer S-shaped metal corrugated tube - Google Patents
Reinforced multi-layer S-shaped metal corrugated tube Download PDFInfo
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- CN203115332U CN203115332U CN 201220672919 CN201220672919U CN203115332U CN 203115332 U CN203115332 U CN 203115332U CN 201220672919 CN201220672919 CN 201220672919 CN 201220672919 U CN201220672919 U CN 201220672919U CN 203115332 U CN203115332 U CN 203115332U
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Abstract
The utility model discloses a reinforced multi-layer S-shaped metal corrugated tube, which comprises an expansion joint and a reinforced assembly, wherein the reinforced assembly comprises a plurality of reinforced rings and two tip armor rings; the expansion joint comprises straight side segments positioned at the two ends, and a plurality of nodes which are connected in sequence and positioned in the middles of the two straight side segments; each node consists of a circular-arc-shaped valley, linear transition segments arranged at the two ends of the valley respectively, and a circular-arc-shaped wave peak which is connected with the transition segments respectively; and adjacent nodes are connected through the circular-arc-shaped wave peaks. Due to the adoption of the reinforced multi-layer S-shaped metal corrugated tube provided by the utility model, the pressure resistance is improved greatly on the premise of ensuring good displacement compensation capability and long fatigue service life, and the defect of incapability of meeting the requirement of large-caliber high-pressure pipeline on large displacement compensation capability by the conventional unreinforced S-shaped corrugated tube or other types of corrugated tubes is overcome.
Description
Technical field
The utility model belongs to liquid propellant rocket engine and makes the field, can be used for node configuration design, especially the heavy caliber pressure duct of the metal bellows that need work under condition of high voltage in other technical field.
Background technique
The multilayer thin-wall corrugated tube is widely used in different technical fields, and for example industries such as Aero-Space, petrochemical industry, heating power need guarantee the place that pipeline can be dynamically connected, to compensate its relative displacement.Modal waveform is U-shaped and Ω shape, S type bellows waveform and moulding process relative complex, but voltage endurance capability, compensation ability, fatigue life significantly improve.Chinese patent publication number CN2262153U, open day is on September 10th, 1997, stop January 11 2006 expiry date, name is called " S type metallic multilayer bellows elasticity; flexible element ", and Russ P publication number RU2157415C1, open day on October 10th, 2000, name is called " a kind of method of processing stainless steel multilayer thin-wall corrugated tube ", these two patents are the manufacturing at S type bellows, method for processing, possesses the certain guidance meaning at the process aspect of producing nothing enhancing S type bellows commonly used, but its deficiency is: the node configuration design aspect does not provide mathematical description accurately, for simple nothing strengthens bellows, do not comprise the enhancing assembly, be not suitable for heavy caliber pressure duct bellows.
Summary of the invention
In order to overcome the deficiencies in the prior art part, the utility model provides enhancement mode multilayer S type metal bellows, this bellows provided by the utility model is guaranteeing significantly to improve voltage endurance capability under the prerequisite good displacement compensation capability and fatigue life, strengthens the shortcoming that S type bellows or other type bellows can't satisfy the requirement of larger caliber pressure duct large displacement compensation capability thereby overcome nothing commonly used.
Technical solution of the present utility model is:
Enhancement mode multilayer S type metal bellows, its special way is: comprise expansion joint and strengthen assembly, described enhancing assembly comprises a plurality of enhancing rings and two termination armouring rings, described expansion joint comprises the straight section a plurality of node that successively are connected middle with being positioned at two straight sections that are positioned at two ends, and described node is made up of circular arc type trough, the straight line type changeover portion that is separately positioned on the trough two ends, the circular arc type crest that is connected with changeover portion respectively; Described adjacent node is connected by the circular arc type crest;
The cross section of described enhancing ring comprises fit section, compensator section and positioning section, described applying section, compensator section are suitable with circular arc type trough and the straight line type changeover portion of expansion joint respectively, be provided with gradually open form gap between described compensator section and the circular arc type crest, one end of described positioning section is connected with compensator section, the other end of described positioning section is provided with locating groove
Described termination armouring ring comprises the first welding ring flat-plate, second welding ring flat-plate and the end socket, the described first welding ring flat-plate and the second welding ring flat-plate concentric circle are distributed in outside the end socket and the first welding ring flat-plate is positioned at the second welding ring flat-plate, the described first welding ring flat-plate is fixedlyed connected with the straight section of expansion joint, described second welded plate is used for fixedly outer connector, and the inboard node with least significant end of described end socket is suitable.
Above-mentioned expansion joint is piled up by multilayer thin-walled sheet metal to be formed, and the thickness of individual layer thin-walled sheet metal is 0.1mm-2mm.
The arc angle of above-mentioned circular arc type trough is 60 °-130 °.
The width in above-mentioned gradually open form gap increases progressively gradually along strengthening the ring radially outward.
The Extreme breadth in above-mentioned gradually open form gap is 0.5 times ~ 1.5 times of expansion joint total thickness T.
The width B of above-mentioned locating groove is 0.2-0.4 times of positioning section width W, and the 0.5-1.2 of the width B that described locating groove depth D is locating groove doubly.
Pitch of waves ratio between the wave height of above-mentioned node and the adjacent node is 0.8-1.6.
The radius of above-mentioned garden camber trough equates with the radius of circular arc type crest.
The utility model beneficial effect compared with prior art is:
1, the design that strengthens ring has improved the voltage endurance capability of bellows greatly, and has avoided the dismounting problem after the moulding;
2, strengthen between ring and the bellows gradually the open form gap has guaranteed displacement compensation capability when improving voltage endurance capability.
3, the control of individual layer wall thickness and wave height/pitch of waves ratio has guaranteed that bellows possesses formability, less rigidity and good fatigue life.
4, the design of termination armouring ring dual collar plate has avoided bellows welding termination directly to bear thrust load.
5, the width of locating groove and effect of depth strengthen intensity and the stationkeeping ability of ring, and be if locating groove is wide and cross the dark intensity that strengthens ring and reduce, narrow or cross the shallow stationkeeping ability that influences.The utility model selected locating groove volume width and depth bounds satisfy the requirement of intensity and stationkeeping ability.
Description of drawings
Fig. 1 is the whole generalized section of the utility model enhancement mode multilayer S type metal bellows;
Fig. 2 is that the utility model enhancing ring cooperates generalized section with single node;
Fig. 3 is the structural representation of the utility model termination armouring ring;
Wherein reference character is: the 1-expansion joint, and 2-strengthens ring, 3-termination armouring ring, 4-straight section, 11-trough, 12-changeover portion, 13-crest, 21-fit the section, 22-compensator section, 23-positioning section, the 24-locating groove, the 31-first welding ring flat-plate, the 32-second welding ring flat-plate, 33-end socket.
Embodiment
As shown in Figure 1, enhancement mode multilayer S type metal bellows, comprise expansion joint 1 and strengthen assembly, strengthen assembly and comprise a plurality of enhancing rings 2 and two termination armouring rings 3, expansion joint 1 comprises the straight section 4 that is positioned at two ends and is positioned at a plurality of node that are connected successively in the middle of two straight sections, node by the circular arc type trough 11 of connection successively, be arranged on the straight line type changeover portion 12 at trough two ends and the circular arc type crest 13 that is connected with changeover portion is formed;
Strengthen ring and comprise applying section 21, compensator section 22 and the positioning section 23 suitable with the circular arc type trough of expansion joint and straight line type changeover portion, be provided with gradually open form gap between compensator section 23 and the circular arc type crest 13, one end of positioning section is connected with compensator section, the other end of positioning section is provided with locating groove 24
Termination armouring ring is fixedlyed connected with the straight section at expansion joint two ends, termination armouring ring comprises the first welding ring flat-plate 31, second welding ring flat-plate 32 and the end socket 33, the first welding ring flat-plate is connected with the straight section of expansion joint, described second welded plate is used for fixedly outer connector, the node of end socket and least significant end is suitable, and the first welding ring flat-plate, the second welding ring flat-plate all are connected with end socket.
Expansion joint is piled up by multilayer thin-walled sheet metal to be formed, and the thickness of individual layer thin-walled sheet metal is 0.1mm-2mm.
The arc angle of circular arc type trough is 60 °-130 °.
Gradually the width in open form gap radially increases progressively gradually along strengthening ring.
Gradually the Extreme breadth in open form gap is 0.5 times ~ 1.5 times expansion joint total thickness T.
The width B of locating groove be the positioning section width W 0.2-0.4 doubly, the locating groove depth D be locating groove width B 0.5-1.2 doubly.Pitch of waves ratio between the wave height of node and the adjacent node is 0.8-1.6.The radius of camber trough equates with the radius of circular arc type crest.
Embodiment 1
The enhancement mode S type bellows of latus rectum 270mm, total height 380mm, material is the 316L stainless steel, and the number of plies is 12, and wave number is 8, slenderness ratio is 1, thickness in monolayer 0.3mm, and the Wave crest and wave trough radius is all 11mm, wave height/pitch of waves ratio 0.95, open form gap maximum value 3.7mm gradually, voltage endurance capability 35MPa.
Embodiment 2
The enhancement mode S type bellows of latus rectum 520mm, total height 800mm, material is the 1Cr18Ni9Ti stainless steel, the number of plies is 10, wave number is 8, and slenderness ratio is 1.3, thickness in monolayer 1mm, the Wave crest and wave trough radius is all 21mm, wave height/pitch of waves ratio 1.25, open form gap maximum value 8.3mm gradually, voltage endurance capability 38MPa.
Claims (8)
1. enhancement mode multilayer S type metal bellows, it is characterized in that: comprise expansion joint and strengthen assembly, described enhancing assembly comprises a plurality of enhancing rings and two termination armouring rings, described expansion joint comprises the straight section a plurality of node that successively are connected middle with being positioned at two straight sections that are positioned at two ends, and described node is made up of circular arc type trough, the straight line type changeover portion that is separately positioned on the trough two ends, the circular arc type crest that is connected with changeover portion respectively; Described adjacent node is connected by the circular arc type crest;
The cross section of described enhancing ring comprises fit section, compensator section and positioning section, described applying section, compensator section are suitable with circular arc type trough and the straight line type changeover portion of expansion joint respectively, be provided with gradually open form gap between described compensator section and the circular arc type crest, one end of described positioning section is connected with compensator section, the other end of described positioning section is provided with locating groove
Described termination armouring ring comprises the first welding ring flat-plate, second welding ring flat-plate and the end socket, the described first welding ring flat-plate and the second welding ring flat-plate concentric circle are distributed in outside the end socket and the first welding ring flat-plate is positioned at the second welding ring flat-plate, the described first welding ring flat-plate is fixedlyed connected with the straight section of expansion joint, described second welded plate is used for fixedly outer connector, and the inboard node with least significant end of described end socket is suitable.
2. enhancement mode multilayer S type metal bellows according to claim 1, it is characterized in that: described expansion joint is piled up by multilayer thin-walled sheet metal to be formed, and the thickness of individual layer thin-walled sheet metal is 0.1mm-2mm.
3. enhancement mode multilayer S type metal bellows according to claim 1 and 2, it is characterized in that: the arc angle of described circular arc type trough is 60 °-130 °.
4. enhancement mode multilayer S type metal bellows according to claim 3 is characterized in that: the width in described gradually open form gap increases progressively gradually along strengthening the ring radially outward.
5. enhancement mode multilayer S type metal bellows according to claim 4, it is characterized in that: the Extreme breadth in described gradually open form gap is 0.5 times ~ 1.5 times of expansion joint total thickness T.
6. enhancement mode multilayer S type metal bellows according to claim 5 is characterized in that: the width B of described locating groove be the positioning section width W 0.2-0.4 doubly, the 0.5-1.2 of the width B that described locating groove depth D is locating groove is doubly.
7. enhancement mode multilayer S type metal bellows according to claim 6, it is characterized in that: the pitch of waves ratio between the wave height of node and the adjacent node is 0.8-1.6.
8. enhancement mode multilayer S type metal bellows according to claim 7, it is characterized in that: the radius of described garden camber trough equates with the radius of circular arc type crest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672919 CN203115332U (en) | 2012-12-08 | 2012-12-08 | Reinforced multi-layer S-shaped metal corrugated tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672919 CN203115332U (en) | 2012-12-08 | 2012-12-08 | Reinforced multi-layer S-shaped metal corrugated tube |
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| CN203115332U true CN203115332U (en) | 2013-08-07 |
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| CN 201220672919 Expired - Lifetime CN203115332U (en) | 2012-12-08 | 2012-12-08 | Reinforced multi-layer S-shaped metal corrugated tube |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996925A (en) * | 2012-12-08 | 2013-03-27 | 中国航天科技集团公司第六研究院第十一研究所 | Enhancement type multi-layer S type metal bellows |
| CN103411048A (en) * | 2013-08-23 | 2013-11-27 | 中国海洋石油总公司 | F-shaped cross section pressure-resistant armor layer of composite hose |
| CN104266028A (en) * | 2014-09-24 | 2015-01-07 | 南京晨光汉森柔性管有限公司 | Instability preventing type expansion joint of metal corrugated pipe |
| CN106120658A (en) * | 2016-07-05 | 2016-11-16 | 中铁十二局集团有限公司 | A kind of hydraulic engineering large-sized aqueduct structure is stretched antipriming |
| CN108180087A (en) * | 2017-12-28 | 2018-06-19 | 西安航天动力研究所 | A kind of pump after-burning feeding swing device for holding high pressure |
| CN112325003A (en) * | 2020-11-16 | 2021-02-05 | 张家港市金达利模塑有限公司 | High-strength double-lining winding pipe |
| CN114345286A (en) * | 2022-02-28 | 2022-04-15 | 茂名重力石化装备股份公司 | Series pipe reactor with closed type waveform expansion joint |
-
2012
- 2012-12-08 CN CN 201220672919 patent/CN203115332U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996925A (en) * | 2012-12-08 | 2013-03-27 | 中国航天科技集团公司第六研究院第十一研究所 | Enhancement type multi-layer S type metal bellows |
| CN103411048A (en) * | 2013-08-23 | 2013-11-27 | 中国海洋石油总公司 | F-shaped cross section pressure-resistant armor layer of composite hose |
| CN103411048B (en) * | 2013-08-23 | 2015-03-25 | 中国海洋石油总公司 | F-shaped cross section pressure-resistant armor layer of composite hose |
| CN104266028A (en) * | 2014-09-24 | 2015-01-07 | 南京晨光汉森柔性管有限公司 | Instability preventing type expansion joint of metal corrugated pipe |
| CN106120658A (en) * | 2016-07-05 | 2016-11-16 | 中铁十二局集团有限公司 | A kind of hydraulic engineering large-sized aqueduct structure is stretched antipriming |
| CN106120658B (en) * | 2016-07-05 | 2018-09-21 | 中铁十二局集团有限公司 | A kind of hydraulic engineering flexible antipriming of large-sized aqueduct structure |
| CN108180087A (en) * | 2017-12-28 | 2018-06-19 | 西安航天动力研究所 | A kind of pump after-burning feeding swing device for holding high pressure |
| CN108180087B (en) * | 2017-12-28 | 2020-03-24 | 西安航天动力研究所 | High-pressure bearing post-pump fuel swing device |
| CN112325003A (en) * | 2020-11-16 | 2021-02-05 | 张家港市金达利模塑有限公司 | High-strength double-lining winding pipe |
| CN114345286A (en) * | 2022-02-28 | 2022-04-15 | 茂名重力石化装备股份公司 | Series pipe reactor with closed type waveform expansion joint |
| CN114345286B (en) * | 2022-02-28 | 2024-05-17 | 茂名重力石化装备股份公司 | String pipe reactor with closed waveform expansion joint |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |