CN109798405A - Profound hypothermia pressure compensation type hermetic collar - Google Patents
Profound hypothermia pressure compensation type hermetic collar Download PDFInfo
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- CN109798405A CN109798405A CN201711136806.3A CN201711136806A CN109798405A CN 109798405 A CN109798405 A CN 109798405A CN 201711136806 A CN201711136806 A CN 201711136806A CN 109798405 A CN109798405 A CN 109798405A
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- guide collar
- collar
- metal
- tube body
- ring
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Abstract
The invention discloses a kind of profound hypothermia pressure compensation type hermetic collars comprising clamp nut, elastomeric composition guide collar, metal o-ring, seal body and tube body；The seal body is equipped with through-hole, and the tube body runs through seal body by the through-hole；The elastomeric composition guide collar includes elastomer and guide collar；The metal o-ring and elastomeric composition guide collar and clamp nut are sheathed on respectively on the outside of tube body；Elastomer one end connection guide collar, the other end peak on metal o-ring；The clamp nut is in contact with guide collar, metal o-ring and elastomeric composition guide collar are pressed in through-hole wall and tube body on the outside of between gap in.The present invention is able to solve seal failure problem of the ferrule sealing structure under profound hypothermia and pressure condition, solves the problems, such as the both sides of the continuous steel pipe across chamber wall while installing the installation and removal of cutting ferrule sealing.Sealing suitable for hollow pipe and solid bar.
Description
Technical field
The present invention relates to low-temperature transport storage technology fields, relate in particular to a kind of profound hypothermia pressure compensation type sealing card
Set.
Background technique
It in the prior art, generally can be in the metal ferrule connector of invention in 1947 using American's Fred A. thunder
As the seal for pipe joints cutting ferrule in liquid transporting equipment.It includes rear cutting ferrule, preceding cutting ferrule, locking nut, metallic conduit and sealing
Part ontology.Its working principle is that steel is held in deformation tightly after cutting ferrule is compressed by seal body before being made during locking by lock nut
Pipe forms circumferential sealing.But when being applied to be suitble on profound hypothermia chamber wall, (profound hypothermia described herein is this structure
Refer to minus 150 DEG C to minus 196 DEG C of temperature ranges), can have the disadvantage that under too low temperature environment or steel pipe, metal
Under the larger temperature difference environment of cutting ferrule and ontology, pre-tight stress is not enough to overcome the deformation of expanding with heat and contract with cold of material, leads to seal failure；
The enclasping force of cutting ferrule is larger afterwards, and rear cutting ferrule is caused to be difficult to dismantle, and encountering will be in continuous steel pipe when need to pass through certain thickness wooden partition
Both sides connect sealing in application, disassembly steel pipe and cutting ferrule components is then caused to become extremely difficult with cutting ferrule simultaneously, and are easy
Cutting ferrule, pipe and seal body sealing surface are damaged, increased costs are caused.Therefore, a kind of novel hermetic collar how is developed,
, to the sealing of equipment, can be under profound hypothermia environment as the mechanically and electrically penetrator on profound hypothermia chamber wall, realization
Those skilled in the art need the direction studied.
Summary of the invention
The present invention provides a kind of profound hypothermia pressure compensation type hermetic collar, can as on profound hypothermia chamber wall machinery and
Electrical penetrator is realized under profound hypothermia environment to the sealing of equipment.
The specific technical solution that it is used is as follows:
A kind of profound hypothermia pressure compensation type hermetic collar comprising clamp nut, elastomeric composition guide collar, metal o-ring are close
Sealing ontology and tube body；The seal body is equipped with through-hole, and the tube body runs through seal body by the through-hole；It is described
Elastomeric composition guide collar includes elastomer and guide collar；The metal o-ring and elastomeric composition guide collar and clamp nut difference
It is sheathed on the outside of tube body；Elastomer one end connection guide collar, the other end peak on metal o-ring；The clamp nut with
The gap that guide collar is in contact, is pressed in metal o-ring and elastomeric composition guide collar between on the outside of through-hole wall and tube body
In.
By using this technical solution: eliminating posterior metal o-ring in structure, and increase elastomeric composition
Guide collar.Remain enough close to metal when enough elastic deformations and pressure being provided, changed with compensation temperature by elastomer
The preload pressure of seal, and it is in order to which the torsion of clamp nut is passed to metal o-ring that guide way, which is arranged, guide way can be with
It is designed to certain cone angle, pressure is being provided while playing the automatic aligning of sealing ring；To continue in > 0 DEG C of difference variation
Enough preload pressures are provided, to guarantee sealing performance when profound hypothermia uses.Due to removing rear cutting ferrule, to the holding of steel pipe
For power mainly by providing after the deformation of preceding cutting ferrule, this structure uses the cutting ferrule of the design method to dismantle and will be easy at both ends simultaneously,
And sealing surface and steel tube surface will not be damaged, it is easy to repeat to install.
Preferably, in above-mentioned profound hypothermia pressure compensation type hermetic collar: the clamp nut compresses spiral shell using screw bolt-type
Female or nut type clamp nut.
Preferably, in above-mentioned profound hypothermia pressure compensation type hermetic collar: the elastomeric composition guide collar is integral type knot
Structure or split type structure.
Preferably, in above-mentioned profound hypothermia pressure compensation type hermetic collar: the tube body uses solid bar, described solid
Bar is using any one of solid metal bar, feedthrough, nonmetallic and conductor the hollow body of filling.
Preferably, in above-mentioned profound hypothermia pressure compensation type hermetic collar: the tube body uses hollow body.
Preferably, in above-mentioned profound hypothermia pressure compensation type hermetic collar: the elastomer uses single helical spring, or
Using the disk spring of single/multiple superposition.
Compared with prior art, the configuration of the present invention is simple, it is easily prepared.It is able to solve ferrule sealing structure in profound hypothermia
With the seal failure problem under pressure condition, while solving that install cutting ferrule close simultaneously on the both sides for passing through the continuous steel pipe of chamber wall
The installation and removal problem of envelope.The sealing of applicable hollow pipe and solid bar.
Detailed description of the invention
Present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Each appended drawing reference and component names corresponding relationship are as follows:
1, clamp nut；2, elastomeric composition guide collar；3, metal o-ring；4, seal body；5, tube body；41, through-hole；21,
Elastomer；22, guide collar.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1 it is the embodiment of the present invention 1:
A kind of profound hypothermia pressure compensation type hermetic collar comprising clamp nut 1, elastomeric composition guide collar 2, metal o-ring 3,
Seal body 4 and tube body 5；
The seal body 4 is equipped with through-hole 41, and the tube body 5 runs through seal body 4 by the through-hole 41；The elasticity
Combined guided circle 2 includes elastomer 21 and guide collar 22；The metal o-ring 3 and elastomeric composition guide collar 2 and clamp nut 1
It is sheathed on 5 outside of tube body respectively；21 one end of elastomer connection guide collar 22, the other end peak on metal o-ring 3；It is described
Clamp nut 1 is in contact with guide collar 22, metal o-ring 3 and elastomeric composition guide collar 2 is pressed in 41 inner wall of through-hole and pipe
In gap between 5 outside of body.
Wherein, the clamp nut uses screw bolt-type clamp nut or nut type clamp nut.The elastomeric composition guiding
Circle 2 is an integral structure or split type structure.Solid bar or hollow body can be used in the tube body 1: tube body 1 uses solid bar
When material, solid bar can provide internal electric access.Solid metal bar, feedthrough, the nonmetallic and conductor of internal filling can be selected
Any one of hollow body.When tube body 1 is using using hollow body, hollow pipe can provide the carrying path of fluid media (medium).
The elastomer 21 uses single helical spring, or the disk spring using single/multiple superposition.
Low-temperature pressure offset-type hermetic collar working principle of the invention is cutting ferrule size before reducing, and removes rear cutting ferrule, is increased
Add elastomeric composition guide collar, the pressure size according to needed for the flexible deformation of metal o-ring, after room temperature locks clamp nut, bullet
Property combined seal ring enough preload pressures can be persistently provided in > 150 DEG C of difference variations, thus guarantee profound hypothermia use when
Sealing performance.Due to removing rear cutting ferrule, provided after mainly being deformed by preceding cutting ferrule to the enclasping force of steel pipe, this structure is to both ends
It will be easy to using the cutting ferrule disassembly of the design method simultaneously, and sealing surface and steel tube surface will not be damaged, and be easy to repeat to install.
The size of elastomeric composition sealing ring and the pipe diameter that need to be sealed, sealing surface angle, metal o-ring material, the pressure at both ends
Difference, the temperature difference at both ends etc. are directly related.Plurality of specifications steel pipe, different-thickness wooden partition, wooden partition two can satisfy using the design
The application under the larger occasion of the temperature difference is held, the mechanically and electrically penetrator being especially suitable on profound hypothermia chamber wall.
The above, only specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any ripe
The technical staff of art technology is known in technical scope disclosed by the invention, any changes or substitutions that can be easily thought of, should all contain
Lid is within protection scope of the present invention.Protection scope of the present invention is subject to the scope of protection of the claims.
Claims (6)
1. a kind of profound hypothermia pressure compensation type hermetic collar, it is characterised in that: including clamp nut (1), elastomeric composition guide collar
(2), metal o-ring (3), seal body (4) and tube body (5)；
The seal body (4) is equipped with through-hole (41), and the tube body (5) runs through seal body by the through-hole (41)
(4)；The elastomeric composition guide collar (2) includes elastomer (21) and guide collar (22)；The metal o-ring (3) and elastic group
It closes guide collar (2) and clamp nut (1) is sheathed on respectively on the outside of tube body (5)；Described elastomer (21) one end connects guide collar
(22), the other end peaks on metal o-ring (3)；The clamp nut (1) is in contact with guide collar (22), by metal o-ring
(3) it is pressed in the gap between on the outside of through-hole (41) inner wall and tube body (5) with elastomeric composition guide collar (2).
2. profound hypothermia pressure compensation type hermetic collar as described in claim 1, it is characterised in that: the clamp nut uses bolt
Type clamp nut or nut type clamp nut.
3. low-temperature pressure offset-type hermetic collar as claimed in claim 2, it is characterised in that: the elastomeric composition guide collar (2)
It is an integral structure or split type structure.
4. low-temperature pressure offset-type hermetic collar as claimed in claim 3, it is characterised in that: the tube body (1) uses solid bar
Material, the solid bar is using any one of solid metal bar, feedthrough, nonmetallic and conductor the hollow body of filling.
5. low-temperature pressure offset-type hermetic collar as claimed in claim 3, it is characterised in that: the tube body (1) uses hollow pipe
Body.
6. the low-temperature pressure offset-type hermetic collar as described in claim 4 or 5, it is characterised in that: the elastomer (21) uses
Single helical spring, or the disk spring using single/multiple superposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711136806.3A CN109798405A (en) | 2017-11-16 | 2017-11-16 | Profound hypothermia pressure compensation type hermetic collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711136806.3A CN109798405A (en) | 2017-11-16 | 2017-11-16 | Profound hypothermia pressure compensation type hermetic collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109798405A true CN109798405A (en) | 2019-05-24 |
Family
ID=66555342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711136806.3A Pending CN109798405A (en) | 2017-11-16 | 2017-11-16 | Profound hypothermia pressure compensation type hermetic collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109798405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879347A (en) * | 2020-07-15 | 2020-11-03 | 中国核动力研究设计院 | Sealing element structure and device of two-phase flow fine measurement device under high temperature and high pressure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202962U (en) * | 1985-07-16 | 1986-05-07 | 张新强 | Pipes joint |
| CN86203139U (en) * | 1986-05-12 | 1986-11-26 | 陈久平 | Fast water pipe joint |
| CN1865753A (en) * | 2005-08-30 | 2006-11-22 | 余启佳 | External ring-sealing type active joint for pipeline |
-
2017
- 2017-11-16 CN CN201711136806.3A patent/CN109798405A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202962U (en) * | 1985-07-16 | 1986-05-07 | 张新强 | Pipes joint |
| CN86203139U (en) * | 1986-05-12 | 1986-11-26 | 陈久平 | Fast water pipe joint |
| CN1865753A (en) * | 2005-08-30 | 2006-11-22 | 余启佳 | External ring-sealing type active joint for pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879347A (en) * | 2020-07-15 | 2020-11-03 | 中国核动力研究设计院 | Sealing element structure and device of two-phase flow fine measurement device under high temperature and high pressure |
| CN111879347B (en) * | 2020-07-15 | 2022-05-20 | 中国核动力研究设计院 | Sealing element structure and device of two-phase flow fine measurement device under high temperature and high pressure |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190524 |
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| RJ01 | Rejection of invention patent application after publication |