CN205479345U - Multistage seal assembly of superhigh pressure - Google Patents
Multistage seal assembly of superhigh pressure Download PDFInfo
- Publication number
- CN205479345U CN205479345U CN201521138447.1U CN201521138447U CN205479345U CN 205479345 U CN205479345 U CN 205479345U CN 201521138447 U CN201521138447 U CN 201521138447U CN 205479345 U CN205479345 U CN 205479345U
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- ring
- black box
- main seal
- ultrahigh pressure
- seal ring
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Abstract
The utility model relates to a multistage seal assembly of superhigh pressure, it includes the coaxial sealing unit who sets up side by side of a plurality of, sealing unit includes main seal ring and clamping ring, the main seal ring includes the ring body, and the ring body is in clamping ring one side is provided with ring toper lip, and ring toper lip is to in main seal ring inside slope and stretching into the shaft hole of main seal ring. Compared with the prior art, the utility model discloses the structure is simpler, and it is more convenient to install, sealed effectual the time life -span longer.
Description
Technical field
This utility model relates to a kind of ultrahigh pressure multistage black box, particularly relates to a kind of for the high pressure of sealing, ultrahigh pressure multistage black box between high pressure initiator injection sucker rod and piston cylinder.
Background technology
Sealing member is to prevent fluid or solid particle from leaking between adjacent faying face and prevent material or the part of the intrusion parts within machinery equipment such as introduced contaminants such as dust and moisture.By different purposes, sealing member is roughly divided into axle sealing, hole sealing, dust seal, guide ring, fixing seal, rotary sealing etc..
High pressure initiator injection pump, for initiator is pressurized to reaction pressure, is so injected in reactor.Existing sealing member designs due to structure, manufactures unreasonable, and sealing member material coefficient of friction is too big, has that the use cycle is short and the problem of axle serious wear.Especially when superelevation 300MPa, there is short problem in service life in existing black box, average life is only at about one month, and superhigh pressure sealing component price is expensive.
Utility model content
(1) to solve the technical problem that
The technical problems to be solved in the utility model is to solve existing seal configuration to design, manufacture unreasonable, that service life is short technical problem.
(2) technical scheme
In order to solve above-mentioned technical problem, this utility model provides a kind of ultrahigh pressure multistage black box, and it includes several sealing units being coaxially arranged side by side；Described sealing unit includes main seal ring and pressure ring；Described main seal ring includes ring body, and ring body is provided with ring conical lip in described pressure ring side, ring conical lip to main seal ring inner inclination and stretch into main seal ring axis hole in.
Further, the cross section of described ring conical lip is triangle, and triangle includes inner side edge, outer hypotenuse and the base of ring body side, and inner side edge is to described main seal ring inner inclination；The inner side edge of ring conical lip rotates the diminishing taper surface in the described pressure ring direction of radial direction in forming.
Further, described pressure ring is provided with the annular slope corresponding with described outer hypotenuse.
Further, described inner side edge is 5-10 ° to the angle that described main seal ring axis hole is tilted.
Further, time sealing ring it is provided with between described sealing ring and the contact surface of pressure ring.
Further, described main seal ring is made up of modified silane crosslinking (UHMWPE)；Described pressure ring is made up of beryllium copper.
Further, described ultrahigh pressure multistage black box includes the described sealing unit of 2-8 group.
Further, described ultrahigh pressure multistage black box also includes that guide ring, described guide ring are co-axially located at left side and/or the right side of several described sealing units.
Further, it is provided with buffering ring between described guide ring and described sealing unit.
Further, described sealing ring cross section is circular, and described sealing ring is outwardly in described main seal ring with the external cylindrical surface of pressure ring.
Further, described pressure ring being provided with annular groove, described time sealing ring is inlaid in described annular groove.
(3) beneficial effect
Technique scheme of the present utility model has the advantages that the ring conical lip through hole side to main seal ring of this utility model main seal ring, i.e. piston rod lopsidedness, the inner side edge of ring conical lip forms a diminishing taper surface of internal diameter, thus between main seal ring and piston rod, matching allowance is increasing, and then sealing effectiveness is also become better and better；And ring conical lip has more elasticity relative to rectangular body portion, while increasing sealing property, the resistance of piston rod movement is not dramatically increased.Compared with prior art, this utility model structure is simpler, easier for installation, and while good sealing effect, the life-span is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment；
Fig. 2 is enlarged drawing at the A of this utility model embodiment；
Wherein, 1: main seal ring；1a: ring body；1b: ring conical lip；1c: axis hole；2: pressure ring；2a: annular slope；2b: annular groove；3: secondary sealing ring；4: guide ring；5: buffering ring；10: sealing unit.
Detailed description of the invention
With embodiment, embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.Following example are used for illustrating this utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more；Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than instruction or the device of hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
As shown in Figure 1-2, a kind of ultrahigh pressure multistage black box described in the present embodiment, it includes 4 sealing units being coaxially arranged side by side 10, and sealing unit 10 includes main seal ring 1 and pressure ring 2；Time sealing ring 3 it is provided with between the contact surface of sealing ring 1 and pressure ring 2.Main seal ring 1 and time sealing ring 3 are made up of modified silane crosslinking (UHMWPE).Pressure ring 2 is made up of beryllium copper.
Ultrahigh pressure multistage black box also includes that guide ring 4, two guide rings 4 are co-axially located at left side and the right side of 4 sealing units 10.It is provided with buffering ring 5 between guide ring 4 and the sealing unit 10 in left side.
Main seal ring 1 includes that ring body 1a, ring body 1a are provided with ring conical lip 1b in pressure ring 2 side, ring conical lip 1b to main seal ring 1 inner inclination and stretch into main seal ring 1 axis hole 1c in.
The cross section of ring conical lip 1b is triangle, and triangle includes inner side edge, outer hypotenuse and the base of ring body side, and inner side edge is to main seal ring 1 inner inclination；The inner side edge of ring conical lip 1b rotates the diminishing taper surface in the described pressure ring direction of radial direction in forming.The annular slope 2a corresponding with outer hypotenuse it is provided with on pressure ring 2.Wherein, inner side edge is 6-8 ° to the optimized angle that main seal ring 1 axis hole is tilted.
Secondary sealing ring 3 cross section is circular, and secondary sealing ring 3 is outwardly in main seal ring 1 with the external cylindrical surface of pressure ring 2.Being provided with annular groove 2b on pressure ring 2, secondary sealing ring 3 is inlaid in annular groove 2b.
Secondary sealing ring 3 while gap, protrudes setting between sealing main seal ring 1 and pressure ring 2 laterally, and the magnitude of interference coordinated between secondary sealing ring 3 and piston cylinder increases, and thus sealing property is more excellent.
Embodiment of the present utility model is given for the sake of example and description, and is not exhaustively or this utility model to be limited to disclosed form.Many modifications and variations are apparent from for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present utility model and actual application are more preferably described, and makes those of ordinary skill in the art it will be appreciated that this utility model thus design are suitable to the various embodiments with various amendments of special-purpose.
Claims (10)
1. a ultrahigh pressure multistage black box, it is characterised in that it includes several sealing units being coaxially arranged side by side；Described sealing unit includes main seal ring and pressure ring；Described main seal ring includes ring body, and ring body is provided with ring conical lip in described pressure ring side, ring conical lip to main seal ring inner inclination and stretch into main seal ring axis hole in.
Ultrahigh pressure multistage black box the most according to claim 1, it is characterised in that the cross section of described ring conical lip is triangle, triangle includes inner side edge, outer hypotenuse and the base of ring body side, and inner side edge is to described main seal ring inner inclination；The inner side edge of ring conical lip rotates the diminishing taper surface in the described pressure ring direction of radial direction in forming.
Ultrahigh pressure multistage black box the most according to claim 2, it is characterised in that be provided with the annular slope corresponding with described outer hypotenuse on described pressure ring.
Ultrahigh pressure multistage black box the most according to claim 2, it is characterised in that described inner side edge is 5-10 ° to the angle that described main seal ring axis hole is tilted.
Ultrahigh pressure multistage black box the most according to claim 1, it is characterised in that be provided with time sealing ring between described sealing ring and the contact surface of pressure ring.
Ultrahigh pressure multistage black box the most according to claim 1, it is characterised in that described main seal ring is made up of modified silane crosslinking；Described pressure ring is made up of beryllium copper.
Ultrahigh pressure multistage black box the most according to claim 1, it is characterised in that described ultrahigh pressure multistage black box includes the described sealing unit of 2-8 group.
Ultrahigh pressure multistage black box the most according to claim 1, it is characterised in that described ultrahigh pressure multistage black box also includes that guide ring, described guide ring are co-axially located at left side and/or the right side of several described sealing units；It is provided with buffering ring between described guide ring and described sealing unit.
Ultrahigh pressure multistage black box the most according to claim 5, it is characterised in that described sealing ring cross section is circular, described sealing ring is outwardly in described main seal ring with the external cylindrical surface of pressure ring.
Ultrahigh pressure multistage black box the most according to claim 5, it is characterised in that being provided with annular groove on described pressure ring, described time sealing ring is inlaid in described annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521138447.1U CN205479345U (en) | 2015-12-31 | 2015-12-31 | Multistage seal assembly of superhigh pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521138447.1U CN205479345U (en) | 2015-12-31 | 2015-12-31 | Multistage seal assembly of superhigh pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479345U true CN205479345U (en) | 2016-08-17 |
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ID=56663208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521138447.1U Active CN205479345U (en) | 2015-12-31 | 2015-12-31 | Multistage seal assembly of superhigh pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357010A (en) * | 2018-11-21 | 2019-02-19 | 中国重型机械研究院股份公司 | A kind of a kind of sealing structure of the super super-pressure of metal hydrostatic extruder |
| CN114076001A (en) * | 2020-08-21 | 2022-02-22 | 恩特格里斯公司 | Primary seal assembly |
-
2015
- 2015-12-31 CN CN201521138447.1U patent/CN205479345U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357010A (en) * | 2018-11-21 | 2019-02-19 | 中国重型机械研究院股份公司 | A kind of a kind of sealing structure of the super super-pressure of metal hydrostatic extruder |
| CN114076001A (en) * | 2020-08-21 | 2022-02-22 | 恩特格里斯公司 | Primary seal assembly |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |