CN1265116C - Self-balancing type flexible joint tube with three flanges structure - Google Patents
Self-balancing type flexible joint tube with three flanges structure Download PDFInfo
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- CN1265116C CN1265116C CN 200410012687 CN200410012687A CN1265116C CN 1265116 C CN1265116 C CN 1265116C CN 200410012687 CN200410012687 CN 200410012687 CN 200410012687 A CN200410012687 A CN 200410012687A CN 1265116 C CN1265116 C CN 1265116C
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- flange
- pipe body
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- balance
- aramid fiber
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Abstract
The present invention relates to a self-balance flexible connecting pipe with a three-flange structure, which is a flexible pipeline connecting piece with a three-flange integral structure and self-balance capability. The self-balance flexible connecting pipe comprises two large parts of a flange and a pipe body, wherein the flange part is composed of an inner flange, a center flange, an outer flange and a spacer sleeve, the framework of the pipe body is spiral type winding aramid fiber cord fabric framework, and the connecting mode of the flange and the pipe body comprises that after being rewound along the center flange, aramid fiber cord fabric is fixed by the inner flange and the outer flange and is tightly locked by installation force. The pipe body of the present invention is in a self-balance structure; under the working pressure function of the pipe body, the resultant force direction of the circumferential stress and the axial stress of the pipe body is coincident with the winding angle of the aramid fiber lines of a framework material to compensate an influence generated by the elongation rate of the aramid fiber lines so as to cause the axial deformation of the pipe body to tend towards zero. The three-flange structure can ensure the drawing resistance of a joint, can increase the corresponding length of the flexible section of the pipe body and can enhance the bit shift compensation capability and the vibration damping capability of a pipe fitting. The present invention has the advantages of simple structure, small dimension and light weight.
Description
Technical field the present invention relates to a kind of self-balancing type pipeline flexible connector.
Background technique needs to use the good pipeline flexible connector of balance quality in some important pipe-line systems of naval vessel and industrial field.The measurement index of balance is the tensile strain rate of pipeline flexible connector under the working pressure effect and corresponding reaction force.In the system that balance is had relatively high expectations, common pipeline flexible connector can produce certain deformation vertically under the working pressure effect, brings additional power and displacement for the pipeline or the equipment that are connected.When this power and displacement are excessive, can influence the proper functioning of system or bring serious consequence, therefore the pipeline flexible connector of selecting for use should have good balance quality.In addition, can produce vibration and construct noise during system works inevitably, sometimes also can be subjected to outside percussion, therefore require the balance flexibility connection pipe also to have favorable damping and displacement compensation capability, avoid vibrating along pipeline and transmit everywhere or impact the harm that causes the pipeline breakage
On state's submarines such as Russia, Hungary, important pipeline with balance requirement mainly adopts the reinforced stock flexible pipe of " loading the firmware formula in the band " joint, its framework layer adopts the steel wire winding structure, joint adopts in the band and loads firmware formula structure, steel wire unrolls and loads on the firmware interior, rely on the flange installing force that it is locked, make pipe fitting have good anti-pull-off performance.The shortcoming of this structure is that balance quality is relatively poor, and its joint dimension, weight and rigidity are excessive, and displacement compensation capability is little, damping property is poor.
Domestic have Related product " adapter of balanced type rubber damping " at present, develop " balanced type metal bellows ", these two kinds of products all are to adopt the method that adds limit structure to solve the balance problem, balance quality is relatively poor, and its limit structure also makes its displacement compensation capability have bigger narrow limitation.The important pipe-line system of some of Modern Ships and industrial field has requirements at the higher level to balance, displacement compensation capability and damping property, above-mentioned flexible connector is difficult to satisfy the demand of important pipe-line system, presses for a kind of pipeline flexible connector that has advantages such as balance is good, displacement compensation capability is strong, damping property is good simultaneously.The Specifeca tion speeification of domestic above-mentioned two kinds of balanced type products (is example with the DN200 type) sees Table 1.
Table 1 DN200 type balanced type rubber damping is taken over and the metal bellows Specifeca tion speeification
| Product name | Balance quality | Maximum deformation quantity | Damping property |
| The balanced type rubber damping is taken over | ±3mm | ±4mm | / |
| Metal bellows | ±3mm | ±7.2mm | 5～7dB |
Summary of the invention the objective of the invention is at above-mentioned present situation, design a kind ofly to have the self-balancing type structure, and have that balance quality is good, three flange structure self-balancing type flexibility connection pipes of advantage such as bit shift compensation and damping property are good.
The implementation of the object of the invention is: three flange structure self-balancing type flexibility connection pipes, comprise adpting flange, rubber tube body 5, adpting flange is made up of outward flange 1, spacer flanger 2, inner flange 3 and 4 four parts of separation sleeve, rubber tube body 5 inner glue layers, framework layer 6 and outer glue-line constitute, the angle that the cord that framework layer 6 is made into by aramid fibre calculates by balance is twined and is formed, and initial winding angle formula is:
cosα
1＝0.578(1+δ)
In the formula, α
1-initial winding angle, δ-aramid line elongation percentage
The aramid fiber cord is fixedly clamped by inner flange 3, outward flange 1 after spacer flanger 2 unrolls.
Axially initial winding angle of the present invention adopts new balance design principle, according to the concern (see figure 2) of body axial deformation with initial winding angle and aramid line elongation percentage, derives following initial winding angle formula.The framework layer initial winding angle definite according to the aforementioned calculation formula, make body under the working pressure effect, its circumferential stress overlaps with framework material aramid line winding angle with the resultant direction of axial stress, compensation goes to zero the axial deformation of body under the working pressure effect because of the influence that the aramid line elongation percentage produces.
Joint part of the present invention is a kind of three flange structural types, both can guarantee that the resistance to plucking of joint took off ability, also can increase the relative length of body flexible section, and displacement compensation capability and damping property are improved.The present invention adopts aramid fibre to make framework material, compressive strength height, in light weight, flexible good, and that the present invention also has is simple in structure, size is little, advantage such as in light weight.
Description of drawings
Fig. 1 structural representation of the present invention
Fig. 2 body balance of the present invention is analyzed schematic representation
Δ l among Fig. 2
1-the axial deformation that causes by initial winding angle
Δ l
2-the axial deformation that causes by the aramid line elongation percentage
l
1-body length l
2-working pressure effect lower tube body length
α
1-initial winding angle α
0-neutral equilibrium angle δ-aramid line elongation percentage
Embodiment the present invention includes adpting flange, rubber tube body 5.Adpting flange is made up of outward flange 1, spacer flanger 2, inner flange 3 and 4 four parts of separation sleeve; Rubber tube body) framework layer 6 is made of by the winding of balance design point of view the cord that aramid fibre is made into, and the aramid fiber cord unrolls afterwards to be added by inner flange 3, outward flange 1 along spacer flanger 2 and fastens.Rubber and cord stopped up bolt hole when separation sleeve 4 was used for stoping the body moulding.
According to the usage requirement difference, take over inside nominal diameter 〉=40mm.
With reference to Fig. 1, the present invention adopts three flange-type structures, has guaranteed that not only resistance to plucking takes off requirement, also can increase the relative length of pipe fitting flexible section, and displacement compensation capability and damping property are improved.Select for use aramid fibre to make framework material, reduced the rigidity of body effectively.Selected suitable initial winding angle, the axial deformation that pipe fitting is produced under the working pressure effect goes to zero.Through experiment test, axially distortion is less than 1mm under the working pressure effect for the pipe fitting of length 500mm, and the balance reaction force is less than 200Kg.
The present invention detects through chemical industry sebific duct and spread goods quality supervision and test center, and the tensile strain rate under the working pressure effect is less than 3 ‰; Do not have under the test conditions of 6.0Mpa * 15min, 8.0Mpa * 15min and reveal and other anomaly, tightness and leakage-preventing property are good; In the not explosion of 12.0Mpa pressure effect lower tube body, no abnormal phenomenon; Each plunger bond strength: be not less than 3.5kN/m between inner glue layer and the enhancement layer, be not less than 1.9kN/m between enhancement layer and the enhancement layer, be not less than 1.6kN/m between outer glue-line and the enhancement layer; At ozone concentration is (50 ± 5) * 10
-8, temperature is aging after-drawing 20% in 72 hours under 40 ± 2 ℃ the condition, do not have be full of cracks and other anomaly; After under subzero 40 ± 3 ℃ test conditions freezing 6 hours, do not have anomalies such as be full of cracks when doing radius and be the flexuraltest of 3600mm, return to the normal temperature state after, do not have through 4.0Mpa * 10min test and to leak, the low-temperature bending performance is good; Reverse 5 ° of pressurisings respectively to 1.0,2.0,3.0,4.0Mpa, pipe fitting is no abnormal, antitorque commentaries on classics is good; Be pressurized to 12.0Mpa or extend 30mm under 4.0Mpa pressure, joint does not have the pull-off sign, and anti-pulling-and-doffing performance can be good; Test specimen is carried out the pressurising fatigue test 12000 times of 0～6.0Mpa, and pipe fitting is no abnormal; Under the effect of 4.0Mpa pressure, sample is carried out-12～12mm repeated tension and compression test to 1500 time, pipe fitting is no abnormal; Under the effect of 4.0Mpa pressure, through displacement 12mm shearing experiment 1500 times back and forth, pipe fitting is no abnormal, and anti-shear performance is good.
Claims (2)
1, three flange structure self-balancing type flexibility connection pipes, comprise adpting flange, rubber tube body (5), it is characterized in that adpting flange is made up of outward flange (1), spacer flanger (2), inner flange (3) and (4) four parts of separation sleeve, rubber tube body (5) is made of inner glue layer, framework layer (6) and outer glue-line, the angle that the cord that framework layer (6) is made into by aramid fibre calculates by balance is twined and is formed, and initial winding angle formula is:
cosα
1＝0.578(1+δ)
In the formula, α
1-initial winding angle, δ-aramid line elongation percentage
The aramid fiber cord is fixedly clamped by inner flange (3), outward flange (1) after spacer flanger (2) unrolls.
2, three flange structure self-balancing type flexibility connection pipes according to claim 1 is characterized in that taking over inside nominal diameter 〉=40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012687 CN1265116C (en) | 2004-01-19 | 2004-01-19 | Self-balancing type flexible joint tube with three flanges structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012687 CN1265116C (en) | 2004-01-19 | 2004-01-19 | Self-balancing type flexible joint tube with three flanges structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1558134A CN1558134A (en) | 2004-12-29 |
| CN1265116C true CN1265116C (en) | 2006-07-19 |
Family
ID=34351033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410012687 Expired - Fee Related CN1265116C (en) | 2004-01-19 | 2004-01-19 | Self-balancing type flexible joint tube with three flanges structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265116C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931897B (en) * | 2017-03-31 | 2019-09-27 | 哈尔滨工程大学 | Vibration damping flexibility connection pipe deformation measuring device |
| CN110159853B (en) * | 2019-06-20 | 2024-05-07 | 北京燕拓减振科技有限公司 | Cord winding type reducing arc flexible connecting pipe with large displacement compensation capability |
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2004
- 2004-01-19 CN CN 200410012687 patent/CN1265116C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1558134A (en) | 2004-12-29 |
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|---|---|---|---|
| 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 | ||
| 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: 20060719 Termination date: 20200119 |