CN105351647B - High-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle - Google Patents
High-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle Download PDFInfo
- Publication number
- CN105351647B CN105351647B CN201510748066.3A CN201510748066A CN105351647B CN 105351647 B CN105351647 B CN 105351647B CN 201510748066 A CN201510748066 A CN 201510748066A CN 105351647 B CN105351647 B CN 105351647B
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- CN
- China
- Prior art keywords
- enlarging
- conveyance conduit
- locking member
- cutting ferrule
- neck
- 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.)
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Classifications
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- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/04—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members
Abstract
The invention discloses a kind of high-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle, including conveyance conduit, and it is fixed on by the second locking member the interconnection joint of one end of conveyance conduit.Wherein, it is in the horn-like enlarging neck expanded outwardly that conveyance conduit is provided with one end that interconnection joint is connected；One end that interconnection joint is connected with conveyance conduit is extended into enlarging neck；Second locking member is provided with conical surface cutting ferrule with conveyance conduit junction；One end that the cutting ferrule cutting edge of conical surface cutting ferrule is connected by the second locking member with conveyance conduit is extended into the second locking member；One end that second locking member is connected with conveyance conduit is fixed on conveyance conduit by the first locking member.The application integrates the complementary use of cutting ferrule, enlarging double-unit system; strengthen suppressing the effect that high-pressure fluid destroys operating mode; optimize the use of enlarging technique protection bushing simultaneously, reduce the shear action to enlarging neck, reach jointly and improve the purpose that long-acting, safe and reliable property ensures.
Description
Technical field
The present invention relates to a kind of high-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle.
Background technology
CNG Filling Station（Hereinafter referred to as CNG gas stations）Be change petroleum resources with when successively decrease and adjust oil gas provide
Source structure, comprehensive utilization natural gas resource, under the driving of the national decision-making of gas generation oil, to be promoted rapidly from the end of the eighties in last century
Grow up.Construction is also evolving with the vehicle used energy fueling station of gas generation oil now.The medium that fills at the station is city
The pipe network natural gas of pipe network natural gas or petroleum and petrochemical industry transport arrangement, main transport road by be by closed low-pressure pipe network conveying,
Pressure is typically only 1~2MPa.And CNG gas stations require that the filling output specification pressure of terminal is 25MPa, so urban pipe network
Or petroleum and petrochemical industry pipe network natural gas must be transported to pressure charging system through closed conduit, again through pressure piping after pressure charging system is pressurized
Route is delivered to high-pressure gas system and point-of-sale terminal, realizes and fills metering to CNG automobile bottle.It follows that CNG aeratings
The high pressure tube loop stood is not only the important route that the important component of CNG gas stations or security incident are taken precautions against.Therefore,
The construction and installation of CNG gas stations high pressure tube loop and its equipment, it is always that authorities' examination ＆ verification requires very tight, construction and installation are necessary
It is required that it has the qualified qualification and the guarantee procedure of corresponding construction and installation grade and enforcement of regulations of registration.Shi Jian CNG gas stations,
Mounting means is implemented in the existing conventional high-pressure pipeline engineering for granting use standard cutting ferrule connected mode, single enlarging installation side
Formula and traditional welding manner.
1st, standard cutting ferrule connected mode, as shown in figure 1, its attachment structure includes being fixed on the cutting ferrule of one end of conveyance conduit
Joint, ferrule fitting and stainless pipe junction are provided with conical surface cutting ferrule, and wherein the cutting ferrule cutting edge of conical surface cutting ferrule is not by ferrule fitting and
One end of rust pipe connection is extended into the ferrule fitting, and ferrule fitting is fixed on conveyance conduit by locking nut.The skill
Art is very ripe, and its safe and reliable property ensures to depend entirely on the cutting ferrule cutting edge of the conical surface cutting ferrule in Fig. 1 and conveyance conduit table
The intensity that embedding friction is mutually squeezed under the push effect of lock nut in face.To taper cutting ferrule quality, mark footpath deviation and peace
The long-term use of thermal property of tubulature material requires high, and pipeline is consolidated to in-site installation has pole strict requirements.Otherwise, will
There is long conveyance conduit relative to the cycle at the effect loop wire of cutting ferrule cutting edge, aperiodic vibration leverage, and high pressure
Fluid impacts in the duct inevitably to be vibrated caused by flowing, or even is also possible to because of taper cutting ferrule, tubing slightly
The uncertain displacement effect for long-term accumulated of expanding with heat and contract with cold of very different or pipeline inherently etc., will all cause cutting ferrule cutting edge
It is tired or turned.Therefore even if lock nut does not relax, pipe dislocation situation will be also collapsed, so as to trigger potential safety hazard.In reality
Gas station and its equipment operation also happen occasionally the major accident of thus caused lives and properties casualty loss.
2nd, single enlarging mounting means, as shown in Fig. 2 it is in loudspeaker that one end that conveyance conduit is connected with ferrule fitting, which is provided with,
The enlarging neck of shape, ferrule fitting are fixed on conveyance conduit by lock nut.The safe and reliable property of the technology connected mode
Ensure the guarantee of the loop wire cone neck for depending entirely on enlarging neck anti-shearing intensity and bearing property of extension uniformity material.Compare
There is further advanced and long-term use of durability in simple cutting ferrule technology mounting means, i.e., or by gas station pipe
It is physical existing for road to collapse enlarging connection sealed end relaxation caused by the intrinsic operating mode of vibration, tiny leakage is also only shown, and
It is unlikely to cause the sudden serious accident for collapsing pipe occurs within the maintenance phase.Safeguard safe and simple, need not also detect a flaw, cost
It is high with respect to cutting ferrule technical approach.But this technical approach handles quality requirement height to the thermal technology of stainless steel conveyance conduit, otherwise exists
Constructing operation expand system during, be easily caused at the enlarging neck of conveyance conduit extend, deformation it is uneven, and at enlarging neck through draw
The exhibition conical surface that stretches is thinning, reduces the local tension of former tubing and the intensity of enlarging neck, is also easy to produce crackle, meanwhile, there is also
Imitated relative to lever of the long pipeline in the cycle that is hit caused by fluid condition effect, aperiodic oscillation is crossed at enlarging neck
Answer cumulative function, as a result, easily make enlarging neck in its Fig. 2 for a long time by the destruction of High Voltage shearing force, cause it to make for a long time
Durability and the fatal hidden danger of seal are required with middle presence.Again because of the thermal technology that handles it of tubing that enlarging technical approach is selected
Technical requirements are high, and real Zhong Ge CNG gas stations construction is uncertain, and quantity of building a station every year is few, the number although accumulation has been built a station
Amount is many, but also little using the amount of such tubing.
3rd, traditional welding manner, the traditional approach technology maturation, but to welding procedure, operation equipment, process and result
Testing requirements are high：A, there is professional operation qualification；B, professional welding equipment equipment；C, per pass weld seam interface requirement scene is online
Flaw detection；D, cost is high；E, influenceed greatly by weather environment temperature, long construction period；F, height of the technical approach for device interior
The implementation on pressure pipe road is big by limitations, so that construction line flaw detection can not reality.Which is not nevertheless, having more
Under the premise of new optional technical approach, which is still recommended as implementing suitable for the pipeline engineering of CNG gas stations because tradition is feasible
Main embodiment.
The content of the invention
It is an object of the invention to provide a kind of high-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle, to solve
The problem of potential safety hazard be present in existing high-pressure delivery pipe connecting structure.
It is connected in order to solve the above technical problems, present invention offer is a kind of based on enlarging with the high-pressure delivery pipeline of cutting ferrule principle
Structure, including conveyance conduit, and it is fixed on by the second locking member the interconnection joint of one end of conveyance conduit.Wherein, convey
It is in the horn-like enlarging neck expanded outwardly that pipeline is provided with one end that interconnection joint is connected；Interconnection joint is connected with conveyance conduit
One end extend into enlarging neck；Second locking member is provided with conical surface cutting ferrule with conveyance conduit junction；The cutting ferrule of conical surface cutting ferrule
One end that cutting edge is connected by the second locking member with conveyance conduit is extended into the second locking member；Second locking member connects with conveyance conduit
The one end connect is fixed on conveyance conduit by the first locking member 3.
Further, one end that interconnection joint is extended into enlarging neck is set to the taper being engaged with enlarging neck；Expand
The inner surface wall of mouth neck portion is provided with fluid sealant.
Further, the second locking member is provided with enlarging protection bushing with enlarging neck junction.
Further, the first locking member and the second locking member are lock nut.
Beneficial effects of the present invention are：
1st, the application integrates the complementary use of cutting ferrule, enlarging double-unit system, strengthens suppressing the effect that high-pressure fluid destroys operating mode,
Simultaneously optimize enlarging technique protection bushing use, reduce the shear action to enlarging neck, reach jointly improve it is long-acting,
The purpose that safe and reliable property ensures.
2nd, because interconnection joint has sufficient length to insert enlarging neck, and form coaxial card at its section both ends and expand double loop wire
The booster action of robust seal is locked, strongly decoupling inhibits any one simple cutting ferrule or enlarging connected mode and high-pressure spray
The single link line lever mechanics effect that the intrinsic operating mode of body and implementation flaw are formed causes the blunt dislocation of cutting ferrule cutting edge fatigue, volume or enlarging neck
Portion's fricting shearing, the destruction of fracture dislocation, make it safe and reliable in effective useful life, superiority protrudes obvious.
Brief description of the drawings
Fig. 1 is the structural representation of existing standard cutting ferrule attachment structure；
Fig. 2 is the structural representation of existing individually enlarging mounting structure；
Fig. 3 is the structural representation of one embodiment of the invention.
Wherein：1st, conveyance conduit；11st, enlarging neck；2nd, conical surface cutting ferrule；21st, cutting ferrule cutting edge；3rd, the first locking member；4th,
Two locking members；5th, enlarging protection bushing；6th, joint is interconnected；7th, ferrule fitting.
Embodiment
The embodiment of the present invention is described below, in order to which those skilled in the art understand this hair
It is bright, it should be apparent that the invention is not restricted to the scope of embodiment, for those skilled in the art,
As long as various change in the spirit and scope of the present invention that appended claim limits and determines, these changes are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the row of protection.
High-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle as shown in Figure 1, including conveyance conduit 1, with
And the interconnection joint 6 of one end of conveyance conduit 1 is fixed on by the second locking member 4.Wherein, conveyance conduit 1 connects with interconnection joint 6
It is in the horn-like enlarging neck 11 expanded outwardly that the one end connect, which is provided with, and interconnection joint 6 extends into one end that conveyance conduit 1 is connected
In enlarging neck 11.The inner surface wall of enlarging neck 11 is provided with fluid sealant, and interconnects joint 6 is extended into enlarging neck 11 one
End is set to the taper being engaged with enlarging neck 11.
Above-mentioned second locking member 4 and the junction of conveyance conduit 1 are provided with conical surface cutting ferrule 2, the cutting ferrule cutting edge 21 of conical surface cutting ferrule 2 by
Second locking member 4 is extended into the second locking member 4 with one end that conveyance conduit 1 is connected.Second locking member 4 connects with conveyance conduit 1
The one end connect is fixed on conveyance conduit 1 by the first locking member 3, and the second locking member 4 is provided with the junction of enlarging neck 11 to be expanded
Mouth protection bushing 5.
Wherein, the above-mentioned locking member 4 of first locking member 3 and second is lock nut.
The installation process of the application is as follows：Conveyance conduit 1 is sequentially inserted into the first locking member 3, conical surface cutting ferrule 2 first and expanded
In mouth protection bushing 5, and appropriate length is reserved outside enlarging protection bushing 5；Then defeated to its with default expansion instrument processed
Send the end of section to carry out expansion system and form enlarging neck 11 to up to standard, and uniformly applied one layer at the inner conical surface of enlarging neck 11
High pressure sealing glue, coarse inner surface is caused because expanding system with closely knit enlarging neck 11, strengthens sealing；Then the second lock is recycled
Tight part 4 will interconnect joint 6 and conveyance conduit 1 is locked；The first locking member 3 is finally recycled to lock the second locking member 4.
The attachment structure of this conveyance conduit 1 is not limited by orientation, angle when mounted, and it combines cutting ferrule, the technology of enlarging
Advantage, maximize favourable factors and minimize unfavourable ones, the material from good specification, the good standard stainless steel tube of ductility are ensured in engineering construction installation
Material is aided with standard operation, and inspection is up to standard, and security, reliability within effective life are can ensure that without line flaw detection, with
New technical approach make up in fusibleness welding scene can not 100% seam inspection the defects of, normal use only does conventional air-tightness
It is qualified with intensity detection.It is whole to implement installation relatively without the influence of environment limitation, efficient quick, short time limit, no destructiveness
Damaged with heat sealability, without live line flaw detection, cost is low, and construction costs is cost-effective.
Claims (2)
1. a kind of high-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle, it is characterised in that including passing through the second lock
Tight part is fixed on the interconnection joint of one end of the conveyance conduit；One end that the conveyance conduit is connected with the interconnection joint is set
It is in the horn-like enlarging neck expanded outwardly to have；The interconnection joint extends into the expansion with one end that the conveyance conduit is connected
In mouth neck portion；Second locking member is provided with conical surface cutting ferrule with the conveyance conduit junction；The cutting ferrule sword of the conical surface cutting ferrule
One end that mouth is connected by the second locking member with conveyance conduit is extended into second locking member；Second locking member and conveying
One end of pipeline connection is fixed on conveyance conduit by the first locking member；The interconnection joint is extended into the enlarging neck
One end be set to the taper being engaged with the enlarging neck；The inner surface wall of the enlarging neck is provided with fluid sealant；Described
Two locking members are provided with enlarging protection bushing with the enlarging neck junction.
2. the high-pressure delivery pipe connecting structure according to claim 1 based on enlarging Yu cutting ferrule principle, it is characterised in that
First locking member and the second locking member are lock nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748066.3A CN105351647B (en) | 2015-11-06 | 2015-11-06 | High-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748066.3A CN105351647B (en) | 2015-11-06 | 2015-11-06 | High-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105351647A CN105351647A (en) | 2016-02-24 |
| CN105351647B true CN105351647B (en) | 2018-04-10 |
Family
ID=55327676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510748066.3A Active CN105351647B (en) | 2015-11-06 | 2015-11-06 | High-pressure delivery pipe connecting structure based on enlarging Yu cutting ferrule principle |
Country Status (1)
| Country | Link |
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| CN (1) | CN105351647B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099236A (en) * | 2018-09-05 | 2018-12-28 | 杭州游闻网络科技有限公司 | A kind of conduit coupling being easily installed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041757U (en) * | 1988-12-06 | 1989-07-26 | 沈阳工程机械厂 | High-pressure tube joint |
| CN2442067Y (en) * | 2000-08-11 | 2001-08-08 | 浙江海亮铜业集团有限公司 | Cutting sleeve type copper tube joint |
| CN202484468U (en) * | 2012-03-06 | 2012-10-10 | 四川中际不锈钢管业有限公司 | Thin-wall metal tubing coupling |
| CN104595602A (en) * | 2014-11-27 | 2015-05-06 | 宁波福士汽车部件有限公司 | Engine oil tube assembly and manufacturing method of engine oil tube assembly |
| CN205244674U (en) * | 2015-11-06 | 2016-05-18 | 遂宁市迪电工控设备有限公司 | High pressure pipeline connection structure based on flaring and cutting ferrule principle |
-
2015
- 2015-11-06 CN CN201510748066.3A patent/CN105351647B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041757U (en) * | 1988-12-06 | 1989-07-26 | 沈阳工程机械厂 | High-pressure tube joint |
| CN2442067Y (en) * | 2000-08-11 | 2001-08-08 | 浙江海亮铜业集团有限公司 | Cutting sleeve type copper tube joint |
| CN202484468U (en) * | 2012-03-06 | 2012-10-10 | 四川中际不锈钢管业有限公司 | Thin-wall metal tubing coupling |
| CN104595602A (en) * | 2014-11-27 | 2015-05-06 | 宁波福士汽车部件有限公司 | Engine oil tube assembly and manufacturing method of engine oil tube assembly |
| CN205244674U (en) * | 2015-11-06 | 2016-05-18 | 遂宁市迪电工控设备有限公司 | High pressure pipeline connection structure based on flaring and cutting ferrule principle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105351647A (en) | 2016-02-24 |
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