CN208152953U - A kind of two-layer compound thermal insulation tubing - Google Patents
A kind of two-layer compound thermal insulation tubing Download PDFInfo
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- CN208152953U CN208152953U CN201820505537.7U CN201820505537U CN208152953U CN 208152953 U CN208152953 U CN 208152953U CN 201820505537 U CN201820505537 U CN 201820505537U CN 208152953 U CN208152953 U CN 208152953U
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- oil pipe
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Abstract
本实用新型涉及一种双层复合保温油管，包括油管本体，油管本体的内腔设有内衬保温层，油管本体的两端分别设有公螺纹，油管本体的外壁包覆有外保温层，外保温层的外周包覆有外保护层，外保温层下端口的下方设有下密封圈，下密封圈的内周贴靠在油管本体的外壁上，下密封圈的外周贴靠在外保护层的内壁，下密封圈的下端设有下挡圈，下挡圈插接在油管本体外壁与外保护层内壁之间，外保护层的下端外周包覆有下定位套，下定位套的下端口设有向自身轴线方向伸出的下定位套端板，下定位套端板卡在油管本体的外壁上，下挡圈的下端抵靠在下定位套端板上，下定位套端板的下端焊接在油管本体上。该双层复合保温油管的保温效果好，且可以实现端口的可靠密封。
The utility model relates to a double-layer composite thermal insulation oil pipe, which comprises an oil pipe body, the inner cavity of the oil pipe body is provided with an inner lining insulation layer, the two ends of the oil pipe body are respectively provided with male threads, and the outer wall of the oil pipe body is covered with an outer insulation layer. The outer periphery of the outer insulation layer is covered with an outer protection layer, and a lower sealing ring is arranged below the lower port of the outer insulation layer. The lower end of the lower sealing ring is provided with a lower retaining ring, the lower retaining ring is inserted between the outer wall of the oil pipe body and the inner wall of the outer protective layer, the outer periphery of the lower end of the outer protective layer is covered with a lower positioning sleeve, and the lower port of the lower positioning sleeve There is a lower positioning sleeve end plate protruding in the direction of its own axis, the lower positioning sleeve end plate is stuck on the outer wall of the oil pipe body, the lower end of the lower retaining ring is against the lower positioning sleeve end plate, and the lower end of the lower positioning sleeve end plate is welded on the tubing body. The double-layer composite thermal insulation oil pipe has a good thermal insulation effect and can realize reliable sealing of ports.
Description
Technical field
The utility model relates to a kind of thermal insulation tubing more particularly to a kind of two-layer compound thermal insulation tubings, belong to pipe insulation
Technical field.
Background technique
Generalling use deep well pump at present adds the production method of plain tubing to carry out petroleum recovering, and production fluid is in lifting process
In, temperature constantly reduces, and wellhead temperature is generally at 25~35 DEG C, and conveying and centralized processing need heat temperature raising, not only geothermal energy
It is not utilized effectively, and consumes new thermal energy again, increase production cost, reduce oil field development benefit, while
Affect environmental quality.
Increasingly stronger with whole society's energy conservation and environmental awareness, government-to-businesses is energy-saving and environment-friendly to require higher and higher, oil
Field enterprise faces the drop of oil price, and benefit significantly slides wave, and the sternness that country makes strict assessment to industry energy conservation emission reduction index
Situation, there is an urgent need to study the technical measures and the path that reduce production cost energy-saving and emission-reduction.
The inner cavity of traditional two-layer compound thermal insulation tubing, including oil pipe ontology, oil pipe ontology is equipped with insulating liner, oil pipe
The both ends of ontology are respectively equipped with male thread, and the outer wall of oil pipe ontology is coated with outer heat insulation layer, and the periphery of outer heat insulation layer is coated with outer
Protective layer.Insulating liner generallys use ABS composite material, with anti-corrosion, wear-resisting property compared with High molecular weight polyethylene
Outside, there is lower thermal coefficient；Outer heat insulation layer generallys use the closed pore shape high molecular material of hydrophobic and oil repellent.External protection suit
On the one hand prevent outer heat insulation layer impaired in outer heat insulation layer periphery, on the other hand by the objects such as outer heat insulation layer and extraneous water, mud, oil
Matter isolation is opened, and prevents fluid media (medium) from entering external protection inner cavity.
The above insulation construction is disadvantageous in that：(1) the upper and lower port of outer heat insulation layer and external protection is often through existing
The field winding materials such as positioning belt and aluminium foil are closed, and poor sealing effect cannot block the leakage of port completely.(2) due to construction
It needs, setting naked pipe section is needed on oil pipe, the heat preservation of naked pipe section needs subsequent progress, generallys use on-site cutting thermal insulation material at present
Mode spliced, then the mode of take-up strap adhesive tape is fixed, heat preservation and poor sealing effect.
Utility model content
The purpose of this utility model is that overcoming problems of the prior art, a kind of two-layer compound heat preservation oil is provided
Pipe, heat insulation effect is good, and the reliable sealing of port may be implemented.
In order to solve the above technical problems, a kind of two-layer compound thermal insulation tubing of the utility model, including oil pipe ontology, it is described
The inner cavity of oil pipe ontology is equipped with insulating liner, and the both ends of the oil pipe ontology are respectively equipped with male thread, the oil pipe ontology
Outer wall is coated with outer heat insulation layer, and the periphery of the outer heat insulation layer is coated with external protection, the lower section of the outer heat insulation layer lower port
Equipped with lower seal, the inner circumferential of the lower seal is sticked on the outer wall of oil pipe ontology, and the periphery of the lower seal reclines
It is equipped with lower retaining ring in the lower end of the inner wall of the external protection, the lower seal, the lower retaining ring is plugged on the oil pipe sheet
Between external wall and external protection inner wall, the lower end periphery of the external protection is coated with lower positioning sleeve, the lower positioning sleeve
Lower port is equipped with the lower positioning sleeve end plate stretched out to own axes direction, and the lower positioning sleeve end plate is stuck in the oil pipe ontology
On outer wall, the lower end of the lower retaining ring is resisted against on the lower positioning sleeve end plate, and the lower end of the lower positioning sleeve end plate is welded on
On the oil pipe ontology.
Compared with the existing technology, the utility model achieves following beneficial effect：Insulating liner and outer heat insulation layer are constituted
Double-layer heat insulation, it is ensured that heat insulation effect；Outer heat insulation layer is isolated from the outside by external protection, extruding of the lower seal by lower retaining ring,
Swelling seals up the lower end of outer heat insulation layer in external protection inner cavity；Lower positioning sleeve for lower retaining ring provide support and with oil
Tube body is welded and fixed, and has prevented external fluid in this way and has entered external protection inner cavity, will not leak into external thermal insulation from lower port
Layer.
As the improvement of the utility model, the upper port of the external protection is equipped with top cover labyrinth, the top cover labyrinth
Lower end is inserted into the inner cavity of the external protection and is pressed in the top of the outer heat insulation layer, and the intermediate flange of the top cover labyrinth is pressed in
It the upper port of the external protection and is welded to each other, the inner wall of the top cover labyrinth is equipped at least twice annular seal groove, each institute
State the sealing realized respectively embedded with upper seal between the oil pipe body outer wall in annular seal groove.Top cover labyrinth welding
It is fixed on the upper port of external protection, the inner wall of top cover labyrinth is realized by upper seal and oil pipe body outer wall to be sealed, so that
External fluid not can enter outer heat insulation layer, it is thus achieved that upper port seals.
The naked pipe section of the oil pipe ontology is covered over heat preservation cutting ferrule, institute as a further improvement of the utility model,
It states heat preservation cutting ferrule to be surrounded by symmetrical two halves slips, the middle section lumen loading of the heat preservation cutting ferrule has cutting ferrule insulating layer, institute
The upper end for stating heat preservation cutting ferrule is equipped with socket on the cutting ferrule for being tightly attached to oil pipe body outer wall, and the periphery of socket is set on the cutting ferrule
Annular front band；The lower end of the heat preservation cutting ferrule, which is equipped with, is tightly attached to socket under the cutting ferrule of oil pipe body outer wall, the cutting ferrule underthrust
The periphery of mouth is set with annular lower catch hoop.Due to the needs of construction, reserved naked pipe section is needed on oil pipe ontology, it in advance will be in annular
Clip and annular lower catch hoop are sleeved on pipeline, and when mending packet heat preservation, two halves slips is surrounded to the guarantor for constituting and completing from pipeline two sides
Then socket under the cutting ferrule for keeping the temperature cutting ferrule is downwardly into annular lower catch hoop by warm cutting ferrule, then by annular front band slide downward
And it is stuck in the periphery of socket on cutting ferrule, annular front band and annular lower catch hoop are interference fit, so keep the temperature cutting ferrule and are consolidated
It is fixed, then edge joint position is sealed with water blocking tape winding, whole process is efficient and convenient, and keeps the temperature reliable.
The axial middle part of the annular front band is evenly distributed with multiple upper cards as a further improvement of the utility model,
Bind round fabrication hole.It can easily be installed or removed by agitating front band fabrication hole.
Socket is in up-small and down-big taper on the cutting ferrule as a further improvement of the utility model, under the cutting ferrule
Socket small big taper under being in.On cutting ferrule socket in up-small and down-big taper be convenient for annular front band be inserted in and more down more
Tightly, under cutting ferrule socket under being in small big taper be convenient for being inserted in the port of annular lower catch hoop and more tighter down.
The inner wall of socket is embedded with spigot seal on cutting ferrule on the cutting ferrule as a further improvement of the utility model,
It encloses, the inner wall of socket is embedded with cutting ferrule underthrust mouth sealing ring under the cutting ferrule.Pass through spigot seal circle on cutting ferrule and cutting ferrule underthrust
Mouth sealing ring realizes the sealing at heat preservation cutting ferrule upper and lower port, avoids generating leakage at port.
The annular front band and the annular lower catch hoop are memorial alloy as a further improvement of the utility model,
Clip.Annular front band and annular lower catch hoop are sleeved on the both ends of heat preservation cutting ferrule at normal temperature, and initial state is only leaned between part
Interference fit lock, but after oil pipe is gone into the well, since the temperature of underground and the temperature of oily tube fluid are high, so that memory is closed
Heat preservation cutting ferrule is locked tighter, has not only ensured the safety of oil well, but also make cutting ferrule insulating layer and oil pipe by the reminiscence of gold card hoop
The closer fitting of ontology, improves heat insulation effect.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments, and attached drawing only provides ginseng
It examines and illustrates to use, it is non-to limit the utility model.
Fig. 1 is the main view of the utility model two-layer compound thermal insulation tubing.
Fig. 2 is the cross-sectional view of the upper half in Fig. 1.
Fig. 3 is the cross-sectional view of the utility model another kind embodiment.
Fig. 4 is the partial enlarged view of Fig. 3.
In figure：1. oil pipe ontology；2. insulating liner；3. outer heat insulation layer；4. external protection；5. lower seal；6. lower block
Circle；7. lower positioning sleeve；8. top cover labyrinth；9. upper seal；10. keeping the temperature cutting ferrule；Socket on 10a. cutting ferrule；10b. cutting ferrule underthrust
Mouthful；Spigot seal circle on 10c. cutting ferrule；10d. cutting ferrule underthrust mouth sealing ring；10e. cutting ferrule insulating layer；11. annular front band；
11a. front band fabrication hole；12. annular lower catch hoop.
Specific embodiment
As shown in Figure 1, the two-layer compound thermal insulation tubing of the utility model includes oil pipe ontology 1, the inner cavity of oil pipe ontology 1 is set
There is insulating liner 2, the both ends of oil pipe ontology 1 are respectively equipped with male thread, and the outer wall of oil pipe ontology 1 is coated with outer heat insulation layer 3, outside
The periphery of insulating layer 3 is coated with external protection 4, and the lower section of 3 lower port of outer heat insulation layer is equipped with lower seal 5, lower seal 5 it is interior
It sticks in week on the outer wall of oil pipe ontology 1, the periphery of lower seal 5 sticks on the inner wall of external protection 4, under lower seal 5
End is equipped with lower retaining ring 6, and lower retaining ring 6 is plugged between 4 inner wall of oil pipe body outer wall and external protection, outside the lower end of external protection 4
It is coated with lower positioning sleeve 7 week, the lower port of lower positioning sleeve 7 is equipped with the lower positioning sleeve end plate stretched out to own axes direction, lower fixed
Position set end plate is stuck on the outer wall of oil pipe ontology 1, and the lower end of lower retaining ring 6 is resisted against on lower positioning sleeve end plate, lower positioning sleeve end plate
Lower end be welded on oil pipe ontology 1.
Insulating liner 2 and outer heat insulation layer 3 constitute double-layer heat insulation, it is ensured that heat insulation effect；External protection 4 is by outer heat insulation layer 3
It is isolated from the outside, extruding of the lower seal 5 by lower retaining ring 6, swelling is in 4 inner cavity of external protection, by the lower end of outer heat insulation layer 3
It seals up；Lower positioning sleeve 7 be lower retaining ring 6 provide support and be welded and fixed with oil pipe ontology 1, prevented in this way external fluid into
Enter 4 inner cavity of external protection, outer heat insulation layer 3 will not be leaked into from lower port.
As shown in Fig. 2, the upper port of external protection 4 is equipped with top cover labyrinth 8, external protection 4 is inserted into the lower end of top cover labyrinth 8
Inner cavity and be pressed in the top of outer heat insulation layer 3, the intermediate flange of top cover labyrinth 8 is pressed in the upper port of external protection 4 and mutually weldering
It connects, the inner wall of top cover labyrinth 8 is equipped at least twice annular seal groove, and it is real to be embedded with upper seal 9 respectively in each annular seal groove
The now sealing between oil pipe body outer wall.Top cover labyrinth 8 is weldingly fixed on the upper port of external protection 4, top cover labyrinth 8 it is interior
Wall is realized by upper seal 9 and oil pipe body outer wall and is sealed, so that external fluid not can enter outer heat insulation layer 3, is achieved in
Upper port sealing.
As shown in Figure 3, Figure 4, the naked pipe section of oil pipe ontology 1 is covered over heat preservation cutting ferrule 10, keeps the temperature cutting ferrule 10 by symmetrical
Two halves slips surround, the middle section lumen loading of heat preservation cutting ferrule 10 has a cutting ferrule insulating layer 10e, and the upper end of heat preservation cutting ferrule 10 is set
There is socket 10a on the cutting ferrule for being tightly attached to oil pipe body outer wall, the periphery of socket 10a is set with annular front band 11 on cutting ferrule；It protects
The lower end of warm cutting ferrule 10 is equipped with and is tightly attached to socket 10b under the cutting ferrule of oil pipe body outer wall, and the periphery of socket 10b is set under cutting ferrule
Annular lower catch hoop 12.
Due to the needs of construction, reserved naked pipe section is needed on oil pipe ontology 1, in advance by annular front band 11 and the lower card of annular
Hoop 12 is sleeved on pipeline, when mending packet heat preservation, two halves slips is surrounded to the heat preservation cutting ferrule 10 for constituting and completing from pipeline two sides, then
Socket 10b under the cutting ferrule for keeping the temperature cutting ferrule 10 is downwardly into annular lower catch hoop 12, then simultaneously by annular 11 slide downward of front band
It is stuck in the periphery of socket 10a on cutting ferrule, annular front band 11 and annular lower catch hoop 12 are interference fit, so keep the temperature cutting ferrule 10
It is fixed, then seals edge joint position with water blocking tape winding, whole process is efficient and convenient, and keeps the temperature reliable.
The axial middle part of annular front band 11 is evenly distributed with multiple front band fabrication hole 11a, by agitating front band work
Skill hole 11a can be installed or removed easily.
Socket 10a is in up-small and down-big taper, small big taper under socket 10b is under cutting ferrule on cutting ferrule.It is inserted on cutting ferrule
Mouthful 10a is convenient for annular front band 11 to be inserted in and more tighter down in up-small and down-big taper, and socket 10b is small big under being under cutting ferrule
Taper be convenient for being inserted in the port of annular lower catch hoop 12 and more tighter down.
The inner wall of the inner wall of socket 10a socket 10b under spigot seal circle 10c on cutting ferrule, cutting ferrule is embedded on cutting ferrule
There is cutting ferrule underthrust mouth sealing ring 10d.Heat preservation card is realized by spigot seal circle 10c on cutting ferrule and cutting ferrule underthrust mouth sealing ring 10d
The sealing at 10 upper and lower ports is covered, avoids generating leakage at port.
Annular front band 11 and annular lower catch hoop 12 are memorial alloy clip.Annular front band 11 and annular lower catch hoop 12
It is sleeved on the both ends of heat preservation cutting ferrule 10 at normal temperature, interference fit that initial state is only leaned between part is locked, but oil pipe
After going into the well, since the temperature of underground and the temperature of oily tube fluid are high, so that the reminiscence of memorial alloy clip, heat preservation is blocked
Set 10 is locked tighter, has not only ensured the safety of oil well, but make cutting ferrule insulating layer 10e with oil pipe ontology 1 is closer is bonded, mention
High heat insulation effect.
The foregoing is merely the preferable possible embodiments of the utility model, patent that is non-therefore limiting to the utility model
Protection scope.In addition to the implementation, the utility model can also have other embodiments.It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, is all fallen in the protection scope of the requires of the utility model.Technology of the utility model without description is special
Sign can realize that details are not described herein by or using the prior art.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820505537.7U CN208152953U (en) | 2018-04-11 | 2018-04-11 | A kind of two-layer compound thermal insulation tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820505537.7U CN208152953U (en) | 2018-04-11 | 2018-04-11 | A kind of two-layer compound thermal insulation tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208152953U true CN208152953U (en) | 2018-11-27 |
Family
ID=64378093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820505537.7U Expired - Fee Related CN208152953U (en) | 2018-04-11 | 2018-04-11 | A kind of two-layer compound thermal insulation tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208152953U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273800A (en) * | 2019-06-21 | 2019-09-24 | 上海通和船用设备有限公司 | A kind of anti-leak insulating novel high-pressure oil pipe |
| CN113294112A (en) * | 2021-07-14 | 2021-08-24 | 李宝娟 | Single pipe flow device for wellhead of oil production well |
| CN119466604A (en) * | 2023-08-09 | 2025-02-18 | 中国石油天然气股份有限公司 | Oil pipe assembly for gas well and gas well hydrate prevention and control method |
-
2018
- 2018-04-11 CN CN201820505537.7U patent/CN208152953U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273800A (en) * | 2019-06-21 | 2019-09-24 | 上海通和船用设备有限公司 | A kind of anti-leak insulating novel high-pressure oil pipe |
| CN113294112A (en) * | 2021-07-14 | 2021-08-24 | 李宝娟 | Single pipe flow device for wellhead of oil production well |
| CN119466604A (en) * | 2023-08-09 | 2025-02-18 | 中国石油天然气股份有限公司 | Oil pipe assembly for gas well and gas well hydrate prevention and control method |
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Legal Events
| 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: 20181127 |