CN204691754U - A kind of thermal stress compensator - Google Patents
A kind of thermal stress compensator Download PDFInfo
- Publication number
- CN204691754U CN204691754U CN201520379117.5U CN201520379117U CN204691754U CN 204691754 U CN204691754 U CN 204691754U CN 201520379117 U CN201520379117 U CN 201520379117U CN 204691754 U CN204691754 U CN 204691754U
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- CN
- China
- Prior art keywords
- inner core
- urceolus
- thermal stress
- piston
- thermo
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of thermal stress compensator, O-ring seals is provided with between described urceolus and inner core, the phenomenon that high temperature high pressure liquid spills from the top of inner core can be prevented, described urceolus is provided with urceolus cap, described inner core is provided with inner core cap, prevent inner core and urceolus under normal conditions from producing displacement in the axial direction, cushion pad is provided with between described thermo-sensitive material and piston, cushioning effect can be played when thermo-sensitive material melts, described variable buckle is provided with lock ring, can the original paper such as fixed muffle further, this thermal stress compensator has good leak tightness, the advantage that protective casing efficiency is high, there are wide market prospects.
Description
Technical field
The utility model relates to expansion loop apparatus field, is specifically related to a kind of thermal stress compensator.
Background technology
In viscous crude heat note thermal production well, the existence of thermal stress makes Service Life of Casing greatly shorten to can be described as a great problem in current thermal recovery construction, and thermal stress be difficult to compensate with regard to means safe hidden danger be difficult to eliminate, this is in the engineering of safety first, be absolutely not allow exist.According to the research of Casing Failure Mechanism and theory calculate and a large amount of full-scale investigations, the Axial Thermal stress produced when drawing thermal recovery is excessive is the one of the main reasons of casing failure, investigate the Development Status of domestic and international thermal stress compensator, analyze its pluses and minuses, the temperature-sensitive ring key formula thermal stress compensator of design is optimized according to process characteristic, the thermal stress compensation structure of this instrument effectively can solve the thermal stress because oil pipe, sleeve pipe and production tree produce when being heated, in the application life of effective prolongation bunch tube, thus can alleviate this engineering problem preferably.
Utility model content
The purpose of this utility model is to provide a kind of thermal stress compensator, optimizes traditional expansion loop, has good leak tightness, advantage that protective casing efficiency is high.
For achieving the above object, the utility model provides following technical scheme: a kind of thermal stress compensator, by urceolus, ring key, thermo-sensitive material, central tube, inner core, piston, variable buckle forms, described central tube is a cylindrical duct, described central tube lower end is provided with buttress thread, upper end is provided with outer cone gas thread and is connected with inner core, described ring key is embedded in the annular groove between urceolus and inner core, inner core is connected with urceolus by described ring key, described variable buckle is connected with the upper end of urceolus, cylinder barrel is provided with in described inner core, cylinder barrel is provided with piston, described cylinder barrel and inner core, piston forms an airtight cavity, described thermo-sensitive material is arranged between cylinder barrel and piston.
Preferably, O-ring seals is provided with between described urceolus and inner core.
Preferably, described urceolus is provided with urceolus cap, described inner core is provided with inner core cap.
Preferably, cushion pad is provided with between described thermo-sensitive material and piston.
Preferably, described variable buckle is provided with lock ring.
The beneficial effect of above technical scheme is adopted to be: the utility model provides a kind of thermal stress compensator, O-ring seals is provided with between described urceolus and inner core, the phenomenon that high temperature high pressure liquid spills from the top of inner core can be prevented, described urceolus is provided with urceolus cap, described inner core is provided with inner core cap, prevent inner core and urceolus under normal conditions from producing displacement in the axial direction, cushion pad is provided with between described thermo-sensitive material and piston, cushioning effect can be played when thermo-sensitive material melts, described variable buckle is provided with lock ring, can the original paper such as fixed muffle further, this thermal stress compensator has good leak tightness, the advantage that protective casing efficiency is high, there are wide market prospects.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of thermal stress compensator of the utility model;
Fig. 2 is the structural representation of O-ring seals;
Wherein: 1-urceolus, 2-ring key, 3-thermo-sensitive material, 4-central tube, 5-inner core, 6-piston, 7-variable buckle, 8-buttress thread, 9-outer cone gas thread, 10-annular groove, 11-cylinder barrel, 12-O shape sealing ring, 13-urceolus cap, 14-inner core cap, 15-cushion pad, 16-lock ring, 17-production casing.
Detailed description of the invention
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the utility model further.
As shown in Figure 1, a kind of thermal stress compensator, by urceolus 1, ring key 2, thermo-sensitive material 3, central tube 4, inner core 5, piston 6, variable buckle 7 forms, described central tube 4 is a cylindrical duct, described central tube 4 lower end is provided with buttress thread 8, central tube 4 upper end is provided with outer cone gas thread 9 and is connected with inner core 5, described ring key 2 is embedded in the annular groove 10 between urceolus 1 and inner core 5, inner core 5 is connected with urceolus 1 by described ring key 2, described variable buckle 7 is connected with the upper end of urceolus 1, cylinder barrel 11 is provided with in described inner core 5, cylinder barrel 11 is provided with piston 6, described cylinder barrel 11 and inner core 5, piston 6 forms an airtight cavity, described thermo-sensitive material establishes 3 to put between cylinder barrel 11 and piston 6.
In addition, as shown in Figure 2, O-ring seals 12 is provided with between described urceolus 1 and inner core 5, described urceolus 1 is provided with urceolus cap 13, described inner core 5 is provided with inner core cap 14, between described thermo-sensitive material 3 and piston 6, is provided with cushion pad 15, described variable buckle 7 is provided with lock ring 16.
Be connected with production casing 17 with central tube 4 by box cupling 16, variable buckle 7, when the temperature of sleeve pipe 17 raises, thermo-sensitive material 3 be heated deliquescing melt, external expansion force can be produced after thermo-sensitive material 3 is heated thawing, this power will promote the piston 6 in cylinder barrel 11, the relative cylinder barrel 11 of piston 6 is slided, after piston 6 slides certain displacement, the ring key 2 blocking urceolus 1 and inner core 5 is made to fall in cylinder barrel 11 by external force, thus urceolus 1 and inner core 5 just can relative motions, and then just can absorb the thermal deformation of sleeve pipe 17, releasing heat stress.
Based on above-mentioned, the utility model provides a kind of thermal stress compensator, O-ring seals is provided with between described urceolus and inner core, the phenomenon that high temperature high pressure liquid spills from the top of inner core can be prevented, described urceolus is provided with urceolus cap, described inner core is provided with inner core cap, prevent inner core and urceolus under normal conditions from producing displacement in the axial direction, cushion pad is provided with between described thermo-sensitive material and piston, cushioning effect can be played when thermo-sensitive material melts, described variable buckle is provided with lock ring, can the original paper such as fixed muffle further, this thermal stress compensator has good leak tightness, the advantage that protective casing efficiency is high, there are wide market prospects.
As known by the technical knowledge, the utility model can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Allly all to be included in the utility model within the scope of the utility model or being equal to the change in scope of the present utility model.
Claims (5)
1. a thermal stress compensator, it is characterized in that: by urceolus, ring key, thermo-sensitive material, central tube, inner core, piston, variable buckle forms, described central tube is a cylindrical duct, described central tube lower end is provided with buttress thread, upper end is provided with outer cone gas thread and is connected with inner core, described ring key is embedded in the annular groove between urceolus and inner core, inner core is connected with urceolus by described ring key, described variable buckle is connected with the upper end of urceolus, cylinder barrel is provided with in described inner core, cylinder barrel is provided with piston, described cylinder barrel and inner core, piston forms an airtight cavity, described thermo-sensitive material is arranged between cylinder barrel and piston.
2. a kind of thermal stress compensator according to claim 1, is characterized in that: be provided with O-ring seals between described urceolus and inner core.
3. a kind of thermal stress compensator according to claim 1, is characterized in that: described urceolus is provided with urceolus cap, described inner core is provided with inner core cap.
4. a kind of thermal stress compensator according to claim 1, is characterized in that: be provided with cushion pad between described thermo-sensitive material and piston.
5. a kind of thermal stress compensator according to claim 1, is characterized in that: described variable buckle is provided with lock ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520379117.5U CN204691754U (en) | 2015-06-04 | 2015-06-04 | A kind of thermal stress compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520379117.5U CN204691754U (en) | 2015-06-04 | 2015-06-04 | A kind of thermal stress compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204691754U true CN204691754U (en) | 2015-10-07 |
Family
ID=54232057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520379117.5U Expired - Fee Related CN204691754U (en) | 2015-06-04 | 2015-06-04 | A kind of thermal stress compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204691754U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989352A (en) * | 2015-06-04 | 2015-10-21 | 江苏进源压力容器有限公司 | Thermal stress compensator |
| CN105927196A (en) * | 2016-06-30 | 2016-09-07 | 中国石油集团西部钻探工程有限公司 | Thermal recovery horizontal well thermal compensation device |
| CN111397254A (en) * | 2019-01-02 | 2020-07-10 | 中国科学院理化技术研究所 | Regenerator sleeve structure and regenerator |
-
2015
- 2015-06-04 CN CN201520379117.5U patent/CN204691754U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989352A (en) * | 2015-06-04 | 2015-10-21 | 江苏进源压力容器有限公司 | Thermal stress compensator |
| CN105927196A (en) * | 2016-06-30 | 2016-09-07 | 中国石油集团西部钻探工程有限公司 | Thermal recovery horizontal well thermal compensation device |
| CN105927196B (en) * | 2016-06-30 | 2018-07-06 | 中国石油集团西部钻探工程有限公司 | Horizontal well thermal recovery thermal compensator |
| CN111397254A (en) * | 2019-01-02 | 2020-07-10 | 中国科学院理化技术研究所 | Regenerator sleeve structure and regenerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20170604 |