CN208996719U - A kind of optical fiber temperature and pressure measurement pipe nipple - Google Patents
A kind of optical fiber temperature and pressure measurement pipe nipple Download PDFInfo
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- CN208996719U CN208996719U CN201821379128.3U CN201821379128U CN208996719U CN 208996719 U CN208996719 U CN 208996719U CN 201821379128 U CN201821379128 U CN 201821379128U CN 208996719 U CN208996719 U CN 208996719U
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- cavity
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- optical fiber
- protection cavity
- pressure
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Abstract
The utility model relates to a kind of optical fiber temperature and pressure to measure pipe nipple; including sequentially connected cutting ferrule from left to right, connector, protection cavity and cock body; and setting, in the intracorporal optical fiber of protection chamber, FBG temperature sensor, FP pressure sensor, bellows and pressure guide hole, the cutting ferrule, connector, protection cavity and cock body are to be tightly connected；The protection cavity includes the first protection cavity, the second protection cavity and third protection cavity set gradually from left to right; it is sealed connection between first protection cavity, the second protection cavity and third protection cavity; optical fiber is equipped in first protection cavity; optical fiber is equipped with FBG temperature sensor; after the left end of optical fiber passes through connector; it extends in cutting ferrule, the right end of optical fiber is connect with setting in the first protection intracorporal FP pressure sensor of chamber.The utility model has good airproof performance, and measurement accuracy is high, can adapt to the operating environment of hydrate exploration and pilot production.
Description
Technical field
The utility model relates to temperature and pressure measuring device technical field, specifically a kind of optical fiber temperature and pressure measure pipe nipple.
Background technique
Gas hydrates (referred to as hydrate) exploration and pilot production are carried out in deeper well, in order to obtain in well
The temperature and pressure data of hydrate, need to be measured by means of temperature sensor and pressure sensor.If individually respectively
Using temperature sensor and pressure sensor, then the laying of sensor is complicated, and uses conventional integrated temperature/pressure sensor, structure
Complicated and measurement accuracy is not high, it is difficult to adapt to the operating environment of sea bottom hydrate exploration and pilot production；And fibre optical sensor is due to it
With high high scalability, it can adapt to the temperature and pressure measurement demand under different occasions, use in many occasions,
Be applied to hydrate temperature and pressure measurement it is necessary to have favorable sealing property and structurally reasonable and high measurement accuracy temperature and pressure
Measurement sensor, conventional temperature/pressure sensor are difficult to accomplish.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of optical fiber temperature and pressure measurement pipe nipple, is able to solve hydration
When object exploration and production testing operation the problem of measurement temperature and pressure.
The technical solution of the utility model are as follows: a kind of optical fiber temperature and pressure measurement pipe nipple, including sequentially connected card from left to right
Set, connector, protection cavity and cock body, and setting the intracorporal optical fiber of protection chamber, FBG temperature sensor, FP pressure sensor,
Bellows and pressure guide hole, the cutting ferrule, connector, protection cavity and cock body are to be tightly connected；
The protection cavity includes the first protection cavity, the second protection cavity and the third protection set gradually from left to right
Cavity is equipped in the first protection cavity to be tightly connected between the first protection cavity, the second protection cavity and third protection cavity
Optical fiber, optical fiber are equipped with FBG temperature sensor and extend in cutting ferrule, the right end of optical fiber after the left end of optical fiber passes through connector
It is connect with setting in the first protection intracorporal FP pressure sensor of chamber；
The FP pressure sensor is arranged in an axially parallel mode with the first protection cavity, and FP pressure sensor protects chamber from first
It stretches out in vivo and extends to setting in the third protection intracorporal bellows of chamber, bellows is axial parallel with third protection cavity
Setting；
The third protection cavity upper and lower ends are also respectively provided with a pressure guide hole, the radial direction of pressure guide hole and third protection cavity
It is arranged in parallel, is perforation between pressure guide hole and FP pressure, the right end of third protection cavity is arranged in cock body, and stretches to third guarantor
It protects in cavity.
Further, the first cavity and the second cavity different equipped with diameter in the first protection cavity, second
Cavity is arranged in the engaging portion that the first protection cavity is connect with the second protection cavity, and the right end of the first cavity and the second cavity connect
It connecing, the right end of left end and connector connection, the left end of connector is connect with cutting ferrule, and connector and cutting ferrule are equipped with cavity, the cavity of connector,
The cavity of cutting ferrule, the first cavity and the second cavity are mutually communicated, and optical fiber is arranged in the first cavity, and the left end of optical fiber passes through connector
Cavity after, extend in the cavity of cutting ferrule, the right end of optical fiber connects with the FP pressure sensor that is arranged in the second cavity
It connects.
Further, the right end of the FP pressure sensor is arranged with the protective shell for protecting FP pressure sensor, FP
The right end of pressure sensor stretches to a bellows left side from protective shell stretching, protective shell and from the FP pressure sensor that protective shell stretches out
That holds is interior intracavitary.
Further, the left end of the bellows stretches in the second protection cavity, and bellows and second protects cavity
Contact portion is equipped with sealing ring.
Further, the pressure guide hole is borehole structure.
Further, it is equipped with third cavity in the third protection cavity, bellows is arranged in third cavity, and cock body is stretched
Enter to protecting in cavity and being contacted with the right end of third cavity, cock body seals the right end of third protection cavity, face pressure guide hole
Cock body and third protection cavity between be equipped with oblong aperture, the upper and lower ends of cock body left end are additionally provided with broached-tooth design, and oblong aperture is set
It sets on the right side of broached-tooth design, pressure guide hole, oblong aperture and broached-tooth design are mutually communicated.
The utility model has the following beneficial effects: the utility model has good airproof performance, measurement accuracy is high, can adapt to be hydrated
The operating environment of object exploration and pilot production, meanwhile, the utility model is integrated by temperature sensor and pressure sensor, conveniently makes
With.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Wherein, 1- cutting ferrule, 2- connector, 3- optical fiber, 4- first protect cavity, 5- protective shell, 6- third to protect cavity, 7- wave
Line pipe, 8- pressure guide hole, 9- cock body, 10- second protect cavity, 11-FBG temperature sensor, the first cavity of 41-, 42- second empty
Chamber, 51-FP pressure sensor, 61- third cavity, 91- oblong aperture, 92- broached-tooth design.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model:
As shown in Figure 1, a kind of optical fiber temperature and pressure measure pipe nipple, including sequentially connected cutting ferrule 1, connector 2, protection from left to right
Cavity and cock body 9, and setting is in the intracorporal optical fiber 3 of protection chamber, FBG temperature sensor 11, FP pressure sensor 51, bellows
7 and pressure guide hole 8, the cutting ferrule 1, connector 2, protection cavity are fixedly connected by snap with cock body 9 and for sealed connections, by
There is certain elasticity tension in the material itself of cutting ferrule 1, connector 2, protection cavity and cock body 9, so that cutting ferrule 1, connector 2, guarantor
Cavity and cock body 9 are protected at engaging portion, each component is to be in close contact, and is similar to " squash type connection ", to reach close well
Effect is sealed, of course for, it is further ensured that sealing effect, it can also be in cutting ferrule 1, connector 2, each knot for protecting cavity and cock body 9
Gasket seal is set at conjunction portion or is coated with sealant, such as epoxy glue；
The protection cavity includes that the first protection cavity 4, second set gradually from left to right protects cavity 10 and third
Cavity 6 is protected, the first protection cavity 4, second is protected between cavity 10 and third protection cavity 6 to be tightly connected, can be passed through
Snap is fixedly connected with or is threadably secured connection, and the first different sky of diameter is equipped in the first protection cavity 4
Chamber 41 and the second cavity 42, the right end of the first cavity 41 are connect with the second cavity 42, and left end is connect with the right end of connector 2, connector 2
Left end connect with cutting ferrule 1, cutting ferrule 1 is used to connect with external optical cable, in actual use, can directly be connected to cutting ferrule 1 outside
On the stainless steel tube of portion's optical cable, to realize the connection of the utility model and external cable, connector 2 and cutting ferrule 1 are equipped with cavity,
The cavity of connector 2, the cavity of cutting ferrule 1, the first cavity 41 and the second cavity 42 are mutually communicated, and their central axes are in same
On straight line, the first cavity 41 is equipped with optical fiber 3, and optical fiber 3 is equipped with the FBG temperature sensor 11 for measuring temperature, optical fiber 3
It after left end passes through the cavity of connector 2, extends in the cavity of cutting ferrule 1, the right end of optical fiber 3 and setting are in the second cavity 42
FP pressure sensor 51 connect；
The FP pressure sensor 51 is arranged in an axially parallel mode with the second cavity 42, and FP pressure sensor 51 is from the second cavity
42 stretch out and extend in the bellows 7 being arranged in third cavity 61, and the setting of third cavity 61 is protected in cavity 6 in third,
Bellows 7 is arranged in an axially parallel mode with third cavity 61, and the setting of the second cavity 42 is in the first protection cavity 4 and the second protection cavity
In the engaging portion of 10 connections, in order to protect FP pressure sensor 51, the right end of FP pressure sensor 51 is arranged with protective shell 5, FP
The right end of pressure sensor 51 is stretched out from protective shell 5, and protective shell 5 can use soft rubber material, and bellows 7 is ripple knot
Structure, and be hollow structure inside bellows 7, it is marked with silicone oil in hollow structure, ambient pressure is facilitated to be transmitted to FP by bellows 7
On pressure sensor 51, protective shell 5 and from protective shell 5 stretch out FP pressure sensor 51 partially protrude into 7 left end of bellows
It is interior intracavitary；
Third protection 6 upper and lower ends of cavity are also respectively provided with a pressure guide hole 8, and pressure guide hole 8 and third protect cavity 6
Radial parallel setting, pressure guide hole 8 are borehole structure, and the right end of third protection cavity 6 is arranged in cock body 9, and stretches to third guarantor
It protects in cavity 6, and is contacted with the right end of third cavity 61, but cock body 9 is not contacted with bellows 7, that is, bellows 7 and cock body 9
Between there are one section of cavity, cock body 9 seals the right end of third protection cavity 6, prevents external environment to the utility model to pressure
Power measurement impacts, so that the utility model integrally has very high sealing performance, can be suitable for seabed water very well
Close the operating environment of object exploration and pilot production；It is equipped with oblong aperture 91 between cock body 9 and third the protection cavity 6 of face pressure guide hole 8, it is long
Square hole 91 and pressure guide hole 8 penetrate through, and the upper and lower ends of 9 left end of cock body are additionally provided with broached-tooth design 92, and oblong aperture 91 is arranged in sawtooth knot
The right side of structure 92, after external pressure change passes sequentially through pressure guide hole 8, oblong aperture 91 and broached-tooth design 92, conduction to bellows 7
Interior FP pressure sensor 51, broached-tooth design 92 convenient for pressure conduction to FP pressure sensor 51, and in order to reduce burst pressure
To the percussion of FP pressure sensor 51, the bellows 7 with ripple struction plays good buffer function, effectively reduces prominent
Hair pressure is impacted to caused by FP pressure sensor 51.
Further, the left end of the bellows 7 stretches in the second protection cavity 10, bellows 7 and the second protection chamber
The contact portion of body 10 is equipped with sealing ring, ensures leakproofness, and then improve the precision of pressure measurement.
In the present embodiment, cutting ferrule 1, connector 2, protection cavity and cock body 9 are all made of sealing material and are made, such as rubber plastic
Or metal.
For those skilled in the art, it can make other each according to the above description of the technical scheme and ideas
Kind is corresponding to be changed and deforms, and all these change and deform the guarantor that all should belong to the utility model claims
Within the scope of shield.
Claims (6)
1. a kind of optical fiber temperature and pressure measure pipe nipple, it is characterised in that: including sequentially connected cutting ferrule from left to right, connector, protection chamber
Body and cock body, and setting is in the intracorporal optical fiber of protection chamber, FBG temperature sensor, FP pressure sensor, bellows and pilot
Hole, the cutting ferrule, connector, protection cavity and cock body are to be tightly connected；
The protection cavity includes the first protection cavity, the second protection cavity and third protection chamber set gradually from left to right
Body is equipped with light in the first protection cavity to be tightly connected between the first protection cavity, the second protection cavity and third protection cavity
Fibre, optical fiber are equipped with FBG temperature sensor and extend in cutting ferrule after the left end of optical fiber passes through connector, the right end of optical fiber with
Setting is in the intracorporal FP pressure sensor connection of the first protection chamber；
The FP pressure sensor is arranged in an axially parallel mode with the first protection cavity, and FP pressure sensor is out of first protection cavity
It stretches out and extends to setting in the third protection intracorporal bellows of chamber, axially parallel the setting of bellows and third protection cavity
It sets；
The third protection cavity upper and lower ends are also respectively provided with a pressure guide hole, and pressure guide hole is radial parallel with third protection cavity
Setting is perforation between pressure guide hole and FP pressure, and the right end of third protection cavity is arranged in cock body, and stretches to third protection chamber
In vivo.
2. optical fiber temperature and pressure according to claim 1 measure pipe nipple, it is characterised in that: be equipped in the first protection cavity straight
Diameter size different the first cavity and the second cavity, the second cavity are arranged in what the first protection cavity was connect with the second protection cavity
In engaging portion, the right end of the first cavity is connect with the second cavity, and the right end connection of left end and connector, the left end of connector and cutting ferrule connect
It connects, connector and cutting ferrule are equipped with cavity, and the cavity of connector, the cavity of cutting ferrule, the first cavity and the second cavity are mutually communicated, optical fiber
It is arranged in the first cavity, after the left end of optical fiber passes through the cavity of connector, extends in the cavity of cutting ferrule, the right end of optical fiber
It is connect with the FP pressure sensor being arranged in the second cavity.
3. optical fiber temperature and pressure according to claim 1 measure pipe nipple, it is characterised in that: the right end set of the FP pressure sensor
Equipped with for protecting the protective shell of FP pressure sensor, the right end of FP pressure sensor is stretched out from protective shell, protective shell and from guarantor
The FP pressure sensor that protective case stretches out stretches to the interior intracavitary of bellows left end.
4. optical fiber temperature and pressure according to claim 1 measure pipe nipple, it is characterised in that: the left end of the bellows stretches to the
In two protection cavitys, the contact portion of bellows and the second protection cavity is equipped with sealing ring.
5. optical fiber temperature and pressure according to claim 1 measure pipe nipple, it is characterised in that: the pressure guide hole is borehole structure.
6. optical fiber temperature and pressure according to claim 1 measure pipe nipple, it is characterised in that: be equipped with the in the third protection cavity
Three cavitys, bellows are arranged in third cavity, and cock body is stretched in protection cavity and contacted with the right end of third cavity, cock body
By the right end sealing of third protection cavity, the cock body and third of face pressure guide hole are protected and are equipped with oblong aperture between cavity, and cock body is left
The upper and lower ends at end are additionally provided with broached-tooth design, and the right side of broached-tooth design, pressure guide hole, oblong aperture and broached-tooth design is arranged in oblong aperture
It is mutually communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821379128.3U CN208996719U (en) | 2018-08-24 | 2018-08-24 | A kind of optical fiber temperature and pressure measurement pipe nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821379128.3U CN208996719U (en) | 2018-08-24 | 2018-08-24 | A kind of optical fiber temperature and pressure measurement pipe nipple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208996719U true CN208996719U (en) | 2019-06-18 |
Family
ID=66799510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821379128.3U Expired - Fee Related CN208996719U (en) | 2018-08-24 | 2018-08-24 | A kind of optical fiber temperature and pressure measurement pipe nipple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208996719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858018A (en) * | 2021-01-08 | 2021-05-28 | 青岛海洋地质研究所 | Device and method for testing lateral pressure creep of hydrate-containing sediment |
| CN113882851A (en) * | 2021-09-30 | 2022-01-04 | 于婷婷 | General trial production tool with pressure measurement function |
-
2018
- 2018-08-24 CN CN201821379128.3U patent/CN208996719U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858018A (en) * | 2021-01-08 | 2021-05-28 | 青岛海洋地质研究所 | Device and method for testing lateral pressure creep of hydrate-containing sediment |
| CN113882851A (en) * | 2021-09-30 | 2022-01-04 | 于婷婷 | General trial production tool with pressure measurement function |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20200824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |