CN209281023U - A kind of optical fiber high pressure seal - Google Patents
A kind of optical fiber high pressure seal Download PDFInfo
- Publication number
- CN209281023U CN209281023U CN201821930187.5U CN201821930187U CN209281023U CN 209281023 U CN209281023 U CN 209281023U CN 201821930187 U CN201821930187 U CN 201821930187U CN 209281023 U CN209281023 U CN 209281023U
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- seal
- optical fiber
- high pressure
- separated time
- time block
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Abstract
The utility model discloses a kind of optical fiber high pressure seals, run through the seal assembly of optical fiber, one separated time block of insert on seal assembly including one, separated time block is positioned by seal nipple, it is cased with mounting base on the seal nipple, seal assembly and separated time block are fixed；Swivel nut is cased with outside mounting base；Seal nipple and mounting base center are equipped with optical fiber through hole；Compact heap is housed in seal nipple tail portion；Sealing ring II is installed on optical fiber other end seal assembly, sealing ring I is installed in seal nipple end head, sealing is formed by compact heap and sealing ring, the high pressure chest in optical fiber is isolated from the outside.Utility model device is while guaranteeing the work of optical fiber normal communication, it is possible to prevente effectively from well liquid leaks caused surface personnel's injury and instrument damage, to greatly improve the job security of downhole instrument.
Description
Technical field
The utility model relates to a kind of optical fiber high pressure seals, use more particularly to a kind of oil, gas well well logging, photoelectricity is multiple
Close the well head optical fiber high pressure seal of cable, fiber optic cables.
Background technique
Fiber optic communication and optical fiber sensing technology are existed due to the advantages that its reliability is high, effectiveness is high, adaptable
Quickly grow up in recent years, will be used wider and wider, such as oil well logging instrument, spaceship, submarine optical fiber cable, seabed
Pipe inspection etc..
Wherein, there are problems that optical fiber seal using Fibre Optical Communication Technology in downhole petroleum logger.Currently, common
Method have: metal welded seal, glue sealing, ceramic welding sealing, glass solder sealing etc..There are reliabilities for above method
Low, complex process, it is with high costs the problems such as.
Utility model content
To solve drawbacks described above existing in the prior art, the purpose of this utility model is to provide a kind of high reliablity,
Simple, easy to maintain, the cheap optical fiber high pressure seal of structure can while guaranteeing the work of optical fiber normal communication
Effectively to avoid well liquid from leaking caused surface personnel's injury and instrument damage, to greatly improve the work of downhole instrument
Safety.
The utility model is realized by following technical proposals.
A kind of optical fiber high pressure seal runs through the seal assembly of optical fiber, insert one on seal assembly including one
Separated time block, separated time block are positioned by seal nipple, are cased with mounting base on the seal nipple, seal assembly and separated time block are consolidated
It is fixed；Swivel nut is cased with outside mounting base；Seal nipple and mounting base center are equipped with optical fiber through hole；It is equipped in seal nipple tail portion
Compact heap；Sealing ring II is installed on optical fiber other end seal assembly, sealing ring I is installed in seal nipple end head, is led to
It crosses compact heap and sealing ring forms sealing, the high pressure chest in optical fiber is isolated from the outside.
Preferably, the seal assembly includes seal receptacle and the seal rubber that is located in seal receptacle, and the tail portion of seal receptacle is set
There is separated time block limiting slot.
Preferably, it is equipped with seal groove in seal receptacle periphery, sealing ring II is mounted in the seal groove, and sealing ring II is close
Sealing is formed between sealing assembly and mounting base, and high pressure chest is isolated from the outside.
Preferably, the seal nipple end is equipped with seal groove, and sealing ring I is mounted in the seal groove, and sealing ring I exists
Sealing is formed between seal nipple and mounting base, and high pressure chest is isolated from the outside.
Preferably, the compact heap is located in the cavity of seal nipple tail portion, and compact heap covers on the optical fiber protective tube of optical fiber,
And it is pushed down by the housing screw of the rear part.
Preferably, the swivel nut is threaded on seal nipple, and mounting base, seal assembly and separated time block are fixed.
Preferably, the seal nipple is equipped with locating slot, and positioning key is located in the locating slot；Guarantee that swivel nut was tightened
Optical fiber is without rotation in journey.
Preferably, the separated time block is provided with single or multiple uniform optical fiber through-hole, separated time blocks excessively and is designed as waist type
Structure guarantees the hole for crossing optical fiber in the hole and seal assembly of separated time block to positive distribution.
Preferably, the seal assembly can seal one or more optical fiber.
The utility model has the advantages that due to taking above technical scheme
In gas well well logging, if leakage pressure occurs in downhole instrument, pressure can be let out along photoelectric compound cable or fiber optic cables
Import is drained to, cable bad is caused, ground staff, equipment safety are on the hazard.The utility model, which guarantees to leak in downhole instrument, presses
In the case where, down-hole pressure will not leak, and cable, personnel, equipment safety is effectively ensured.For using the underground of optical fiber transmission signal
Instrument provides that more safe and reliable environment, high reliablity, at low cost, overall structure is simple, maintenance in the work of well head
It is convenient.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
It does not constitute improper limits to the present invention, in the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is seal component architecture schematic diagram；
Fig. 4 (a) and Fig. 4 (b) is separated time block structure schematic diagram.
In figure: 1, mounting base；2, seal nipple；3, sealing ring I；4, seal assembly；5, sealing ring II；6, separated time block；7,
Swivel nut；8, compact heap；9, housing screw；10, optical fiber；11, fiber optic protection steel pipe；12, high pressure chest；13, seal rubber；14, close
Seal seat；15, locating slot；16, positioning key.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing and specific embodiment, in the signal of this utility model
Property embodiment and explanation be used to explain the utility model, but be not intended to limit the scope of the present invention.
Fig. 1 is the utility model mechanical construction drawing, and optical fiber high pressure seal is mainly by mounting base 1, seal nipple 2, close
Seal I 3, seal assembly 4, sealing ring II 5, separated time block 6, swivel nut 7, compact heap 8, housing screw 9, optical fiber 10, fiber optic protection steel
Pipe 11, high pressure chest 12 form.Fig. 2 is the A-A cross-sectional view of Fig. 1, shows locating slot 15, positioning key 16.
Wherein, as shown in Figure 1, optical fiber high pressure seal includes the seal assembly 4 for running through optical fiber 10, in sealing group
One separated time block 6 of insert on part 4, separated time block 6 are positioned by seal nipple 2, and mounting base 1, mounting base 1 are cased on seal nipple 2
Seal assembly 4 and separated time block 6 is fixed；Swivel nut 7 is cased with outside mounting base 1；Seal nipple 2 and 1 center of mounting base are equipped with light
Fine 10 through holes；The compact heap 8 that housing screw 9 is pushed down is housed in 2 tail portion of seal nipple；In 10 other end seal assembly 4 of optical fiber
Sealing ring II 5 is installed, sealing ring I 3 is installed in 2 end head of seal nipple, sealing is formed by compact heap 8 and sealing ring,
High pressure chest 12 is isolated from the outside.
Wherein as shown in figure 3, seal assembly 4 can seal one or more optical fiber 10, seal assembly 4 and optical fiber 10 can be produced
Raw sealing effect, high pressure chest 12 is isolated from the outside.Seal assembly 4 is made of seal rubber 13 and seal receptacle 14, seal rubber
13 directly vulcanizations are on seal receptacle 14.Leakproofness between seal rubber 13 and seal receptacle 14 can guarantee using direct sulfuration process
Energy.When optical fiber 10 passes through seal rubber 13, seal rubber 13 can hold optical fiber 10 tightly, generate good sealing effect.
As shown in Figure 1, screw 9 being rotatably compressed with tool and pushing down compact heap 8, compact heap 8 is deformed, in seal nipple 2
Sealing is formed between optical fiber protective tube 11, and high pressure chest 12 is isolated from the outside.
As shown in Figure 1,2 end of seal nipple is equipped with seal groove, and sealing ring I 3 is mounted in seal groove, and sealing ring I 3 is close
Sealing is formed between sealing joint 2 and mounting base 1, and high pressure chest 12 is isolated from the outside.
As shown in Figure 1, seal assembly 4 is equipped with seal groove, and sealing ring II 5 is mounted in the seal groove, and sealing ring II 5 exists
Sealing is formed between seal assembly 4 and mounting base 1, and high pressure chest 12 is isolated from the outside.
As shown in Figure 1, swivel nut 7 consolidates mounting base 1, seal assembly 4, separated time block 6 with seal nipple 2 using being threadedly coupled
It is fixed.As shown in Figure 2, seal nipple 2 is equipped with locating slot 15, and positioning key 16 is located in locating slot 15, guarantees 7 rundown process of swivel nut
Middle optical fiber 10 is without rotation.
See shown in Fig. 4 (a), (b), separated time block 6 is provided with single or multiple uniform optical fiber through-hole, separated time blocks 6 excessively and sets
It is calculated as waist type structure, the hole of optical fiber is crossed in the hole of separated time block 6 and seal assembly 4 to positive distribution.Installation process middle separated time block 6 with it is close
Sealing assembly 4 is unable to move relatively.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (9)
1. a kind of optical fiber high pressure seal, which is characterized in that the seal assembly (4) for running through optical fiber (10) including one, close
One separated time block (6) of insert on sealing assembly (4), separated time block (6) are positioned by seal nipple (2)；It is covered on the seal nipple (2)
There is mounting base (1), the seal assembly (4) and separated time block (6) is fixed；Swivel nut (7) are cased with outside the mounting base (1)；Institute
It states seal nipple (2) and mounting base (1) center is equipped with optical fiber (10) through hole；In the seal nipple (2) tail portion equipped with pressure
Tight block (8)；Sealing ring II (5) is installed in the seal assembly (4) of the optical fiber (10) other end, in the seal nipple (2)
End head is equipped with sealing ring I (3), sealing is formed by compact heap (8) and sealing ring, by the high pressure chest (12) in optical fiber (10)
It is isolated from the outside.
2. a kind of optical fiber high pressure seal according to claim 1, which is characterized in that the seal assembly (4) includes
The tail portion of seal receptacle (14) and the seal rubber (13) being located in seal receptacle (14), seal receptacle (14) is limited equipped with separated time block (6)
Slot.
3. a kind of optical fiber high pressure seal according to claim 2, which is characterized in that in the seal receptacle (14) periphery
Equipped with seal groove, sealing ring II (5) is mounted in the seal groove, and sealing ring II (5) is in seal assembly (4) and mounting base (1)
Between formed sealing, high pressure chest (12) is isolated from the outside.
4. a kind of optical fiber high pressure seal according to claim 1, which is characterized in that seal nipple (2) end
Equipped with seal groove, sealing ring I (3) is mounted in the seal groove, sealing ring I (3) seal nipple (2) and mounting base (1) it
Between formed sealing, high pressure chest (12) is isolated from the outside.
5. a kind of optical fiber high pressure seal according to claim 1, which is characterized in that the compact heap (8) is located at close
In the cavity of sealing joint (2) tail portion, compact heap (8) covers on the optical fiber protective tube (11) of optical fiber (10), and the pressure for passing through the rear part
Tight screw (9) is pushed down.
6. a kind of optical fiber high pressure seal according to claim 1, which is characterized in that the swivel nut (7) is threadedly coupled
It is on seal nipple (2), mounting base (1), seal assembly (4) and separated time block (6) is fixed.
7. a kind of optical fiber high pressure seal according to claim 1, which is characterized in that set on the seal nipple (2)
Have locating slot (15), positioning key (16) is located in the locating slot (15)；Guarantee that optical fiber (10) nothing turns in swivel nut (7) rundown process
It is dynamic.
8. a kind of optical fiber high pressure seal according to claim 1, which is characterized in that the separated time block (6) is provided with
Single or multiple uniform optical fiber through-holes excessively, separated time block (6) are designed as waist type structure, guarantee hole and the sealing of separated time block (6)
The hole of optical fiber is crossed in component (4) to positive distribution.
9. a kind of optical fiber high pressure seal according to claim 1-8, which is characterized in that the seal assembly
(4) one or more optical fiber (10) can be sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821930187.5U CN209281023U (en) | 2018-11-21 | 2018-11-21 | A kind of optical fiber high pressure seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821930187.5U CN209281023U (en) | 2018-11-21 | 2018-11-21 | A kind of optical fiber high pressure seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209281023U true CN209281023U (en) | 2019-08-20 |
Family
ID=67602201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821930187.5U Active CN209281023U (en) | 2018-11-21 | 2018-11-21 | A kind of optical fiber high pressure seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209281023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244877A (en) * | 2020-03-13 | 2020-06-05 | 长沙金信诺防务技术有限公司 | Watertight cable joint |
-
2018
- 2018-11-21 CN CN201821930187.5U patent/CN209281023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244877A (en) * | 2020-03-13 | 2020-06-05 | 长沙金信诺防务技术有限公司 | Watertight cable joint |
| CN111244877B (en) * | 2020-03-13 | 2020-12-01 | 长沙金信诺防务技术有限公司 | Watertight cable joint |
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