CN103615622B - Gauze pad type thermal stress compensator - Google Patents
Gauze pad type thermal stress compensator Download PDFInfo
- Publication number
- CN103615622B CN103615622B CN201310710111.7A CN201310710111A CN103615622B CN 103615622 B CN103615622 B CN 103615622B CN 201310710111 A CN201310710111 A CN 201310710111A CN 103615622 B CN103615622 B CN 103615622B
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- China
- Prior art keywords
- compensator
- sleeve
- gauze pad
- thermal stress
- screw thread
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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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- 230000008646 thermal stress Effects 0.000 title claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims abstract description 33
- 210000004907 gland Anatomy 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The present invention relates to a kind of gauze pad type thermal stress compensator, belong to thermal stress compensator technical field.In this device, main pipeline butt end is processed with high strength screw thread, main pipeline is connected with high pressure screw thread gland, and high pressure screw thread gland is inside and outside is provided with screw thread, and internal whorl is connected on main pipeline screw thread; External screw-thread is connected with compensator sleeve A and compensator sleeve B; Main pipeline front end is provided with high pressure sealing ring; In the middle part of compensator sleeve A and compensator sleeve B, joint is provided with concentric structure and preset clearance, and two ends are provided with flange, and flange is provided with perforation, installing sleeve bolt, to ensure that two ends pipeline is unimpeded with one heart; Compensator sleeve A and compensator sleeve B inside cavity are provided with compensator inner core, and compensator inner core inside is provided with multiple gauze pad matrix bodies.Gauze pad type thermal stress compensator of the present invention, can make up the thermal stress produced in using process, contributes to eliminating thermal stress in pipeline using process, improves Security.
Description
Technical field
The present invention relates to a kind of gauze pad type thermal stress compensator, belong to thermal stress compensator technical field.
Background technique
In Pipe installing, need to adopt some pipeline compensators, because pipeline is general in use, will be able to expand with heat and contract with cold higher than normal temperature because of seasonal law and fed sheet of a media, length changes.When temperature is higher or pipeline is longer, pipeline can be caused to exceed ultimate stress own and break, even destroy the equipment and support that are connected.Therefore, the thermal stress of swell increment and generation thereof can not be ignored, must indemnifying measure be taked, reduce the stress produced when pipeline expands with heat and contract with cold, make thermal stress reduce under pipeline allowable stress, to ensure pipeline stabilization and trouble free service.
In order to reduce the thermal stress of pipeline, generally install compensator between tubes, or utilize the bending with auto-compensation of pipeline itself.In the configuration of pipeline, should pay the utmost attention to the natural compensation effect utilizing pipe bending, this automatic compensating utilizing pipeline its length to change is best bet, when natural compensation can not meet the demands, can arrange compensator.Specifically have: (1) filler compensator: material filling type compensator is also known as pipe-type compensator, and it can be divided into cast iron and steel two kinds.The working principle of filler compensator is when pipeline expands with heat and contract with cold, and large small sleeve does relative movement to absorb its expansion length.Because friction produces reaction thrust between filler and sleeve, its size is directly proportional to manifold pressure, and has nothing to do with the amount of deformation of pipeline.During installation, the size of material filling type compensator overlaps simple two ends respectively a fulcrum, fixes for one, a slip.The advantage of this compensator is that floor space is little, and install simple, fluid resistance is little, and wall thickness is corrosion-resistant, has larger compensation ability.Its shortcoming is that cost is higher, and make comparatively difficulty, easily leak, leak gas, it is applicable to, and the temperature difference is large, internal pressure is low and the antileakaging pipeline of medium, often adopts in normal pressure gas pipeline.(2) pipeline auto-compensation it be utilize the natural torsion in pipe laying come extraction duct thermal stretching distortion, common are L shape or z shape.L shape and z shape compensator (also known as natural compensation device) can utilize ducted elbow to form, and are convenient to install.In pipeline construction, the compensation that these two kinds of compensators do thermal expansion should be made full use of, and then consider the compensator adopting other kind.The advantage of auto-compensation is can less space of compensation device, produces lateral displacement when shortcoming is pipe deforming.(3) drum shape metal compensator: drum type compensator is installed simple, and fluid resistance is little, but compensation ability is little, and intensity is more weak, is generally used for diameter large, the medium that low pressure and fearness are leaked, conventional in blast furnace gas conveying.Drum type compensator advantage makes to be easier to, and investment comparatively economizes; Shortcoming is that corrosion resistance is bad.Just based on above-mentioned technical deficiency, the present invention adopts another mode to reduce thermal stress.
Summary of the invention
The object of the present invention is to provide a kind of gauze pad type thermal stress compensator, pipeline pressure can be eliminated better, provide a kind of better mode to carry out thermal stress release and process.
To achieve these goals, technological scheme of the present invention is as follows.
A kind of gauze pad type thermal stress compensator, comprise main pipeline, wherein, main pipeline butt end is processed with high strength screw thread, main pipeline is connected with high pressure screw thread gland, and high pressure screw thread gland is inside and outside is provided with screw thread, and internal whorl is connected on main pipeline screw thread; External screw-thread is connected with compensator sleeve A and compensator sleeve B; Main pipeline front end is provided with high pressure sealing ring; In the middle part of compensator sleeve A and compensator sleeve B, joint is provided with concentric structure and preset clearance, and two ends are provided with flange, and flange is provided with perforation, installing sleeve bolt, to ensure that two ends pipeline is unimpeded with one heart; Compensator sleeve A and compensator sleeve B inside cavity are provided with compensator inner core, and compensator inner core inside is provided with multiple gauze pad matrix bodies.
Further, compensator sleeve A is provided with gauze pad matrix lower end near gauze pad matrix bodies end; Compensator sleeve B is provided with gauze pad matrix upper end near gauze pad matrix bodies end.
Further, internal thread is provided with in compensator sleeve A and compensator sleeve B.
Further, sleeve bolt two ends are provided with packing ring and nut with securing means.
Further, gauze pad matrix bodies adopts Pierced structure, and is provided with gap filling material.
In the invention, main pipeline butt end is processed with high strength screw thread, is outside equipped with screw thread in high pressure screw thread gland, and internal whorl is connected on main pipeline screw thread; External screw-thread is connected on gauze pad internal thread of sleeve; Front end press seal pad.The middle part joint of gauze pad sleeve is provided with concentric structure and preset clearance, and two ends are provided with flange, and flange is provided with perforation, are provided with bolt, to ensure that two ends pipeline is unimpeded with one heart.Two ends high strength nut provides suitable prestressing force for inner gauze pad, finally enough resists thermal strain.Coupling sleeve is responsible for by high strength sleeve bolt, provides symmetric form to protect to overall concentricity simultaneously.Because main pipeline and compensator inner core have certain gap, safe and reliable high pressure sealing ring must be provided to ensure to run well.Gauze pad matrix lower end and gauze pad matrix upper end some difference of two-end structure, its structure is to connect compensator sleeve A, compensator sleeve B sleeve, gauze pad matrix bodies.Compensator inner core, two ends are connected for strain headspace with main pipeline gap, and this gap also can be filled by crude oil and flow unimpeded.Gauze pad matrix bodies, adopts special Pierced structure to guide strain, and is provided with gap filling material with compensate for strain.
This beneficial effect of the invention is: the technology of the present invention is by arranging safe and reliable high pressure sealing ring to ensure that pipeline normally uses, and the otherness of gauze pad matrix lower end and gauze pad matrix upper end two-end structure is to ensure the connection of compensator.Compensator inner core, two ends are connected for strain headspace with main pipeline gap, and this gap also can be filled by crude oil and flow unimpeded.Gauze pad matrix bodies, adopts special Pierced structure to guide strain, and is provided with gap filling material with compensate for strain.Generally speaking, gauze pad type thermal stress compensator of the present invention, can make up the thermal stress produced in using process, contributes to eliminating thermal stress in pipeline using process, improves Security.
Accompanying drawing explanation
Fig. 1 is equipment therefor explosive view in the embodiment of the present invention.
Fig. 2 is equipment therefor sectional drawing in the embodiment of the present invention.
Description of symbols in figure, 1, main pipeline; 2, high pressure screw thread gland; 3, high pressure sealing ring; 4, compensator sleeve A; 5, gauze pad matrix lower end; 6, gauze pad matrix bodies; 7, gauze pad matrix upper end; 8, compensator inner core; 9, compensator sleeve B; 10, sleeve bolt; 11, nut; 12, packing ring.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, better to understand the present invention.
Gauze pad type thermal stress compensator as shown in Figure 1 and Figure 2, comprises main pipeline 1, wherein, main pipeline 1 butt end is processed with high strength screw thread, main pipeline 1 is connected with high pressure screw thread gland 2, high pressure screw thread gland 2 is inside and outside is provided with screw thread, and internal whorl is connected on main pipeline 1 screw thread; External screw-thread is connected with compensator sleeve A4 and compensator sleeve B9; Main pipeline 1 front end is provided with high pressure sealing ring 3; In the middle part of compensator sleeve A4 and compensator sleeve B9, joint is provided with concentric structure and preset clearance, and two ends are provided with flange, and flange is provided with perforation, installing sleeve bolt 10, to ensure that two ends pipeline is unimpeded with one heart; Compensator sleeve A4 and compensator sleeve B9 inside cavity are provided with compensator inner core 8, and compensator inner core 8 inside is provided with multiple gauze pad matrix bodies 6.Compensator sleeve A4 is provided with gauze pad matrix lower end 5 near gauze pad matrix bodies 6 end; Compensator sleeve B9 is provided with gauze pad matrix upper end 7 near gauze pad matrix bodies 6 end.Internal thread is provided with in compensator sleeve A4 and compensator sleeve B9.Sleeve bolt 10 two ends are provided with packing ring 12 and nut 11 securing means.Gauze pad matrix bodies adopts Pierced structure, and is provided with gap filling material.
In the invention, main pipeline 1 butt end is processed with high strength screw thread, is outside equipped with screw thread in high pressure screw thread gland 2, and internal whorl is connected on main pipeline screw thread; External screw-thread is connected on gauze pad internal thread of sleeve; Front end press seal pad.The middle part joint of gauze pad sleeve 3 is provided with concentric structure and preset clearance, and two ends are provided with flange, and flange is provided with perforation, are provided with bolt, to ensure that two ends pipeline is unimpeded with one heart.Two ends high strength nut 11 provides suitable prestressing force for inner gauze pad, finally enough resists thermal strain.Coupling sleeve is responsible for by high strength sleeve bolt 10, provides symmetric form to protect to overall concentricity simultaneously.Because main pipeline 1 and compensator inner core 8 have certain gap, safe and reliable high pressure sealing ring 3 must be provided to ensure to run well.Gauze pad matrix lower end 5 and gauze pad matrix upper end 7 some difference of two-end structure, its structure is to connect compensator sleeve A4, compensator sleeve B9 sleeve, gauze pad matrix bodies 6.Compensator inner core 8, two ends are connected for strain headspace with main pipeline 1 gap, and this gap also can be filled by crude oil and flow unimpeded.Gauze pad matrix bodies 6, adopts special Pierced structure to guide strain, and is provided with gap filling material with compensate for strain.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (5)
1. a gauze pad type thermal stress compensator, comprise main pipeline, it is characterized in that: described main pipeline butt end is processed with high strength screw thread, described main pipeline is connected with high pressure screw thread gland, described high pressure screw thread gland is inside and outside is provided with screw thread, internal whorl is connected on main pipeline screw thread, external screw-thread is connected with compensator sleeve A and compensator sleeve B; Described main pipeline front end is provided with high pressure sealing ring; In the middle part of described compensator sleeve A and compensator sleeve B, joint is provided with concentric structure and preset clearance, and two ends are provided with flange, and flange is provided with perforation, installing sleeve bolt; Described compensator sleeve A and compensator sleeve B inside cavity are provided with compensator inner core, and described compensator inner core outer installment has multiple gauze pad matrix bodies.
2. gauze pad type thermal stress compensator according to claim 1, is characterized in that: described compensator sleeve A is provided with gauze pad matrix lower end near gauze pad matrix bodies end; Described compensator sleeve B is provided with gauze pad matrix upper end near gauze pad matrix bodies end.
3. gauze pad type thermal stress compensator according to claim 1, is characterized in that: be provided with internal thread in described compensator sleeve A and compensator sleeve B.
4. gauze pad type thermal stress compensator according to claim 1, is characterized in that: described sleeve bolt two ends are provided with packing ring and nut with securing means.
5. gauze pad type thermal stress compensator according to claim 1, is characterized in that: described gauze pad matrix bodies adopts Pierced structure, and is provided with gap filling material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310710111.7A CN103615622B (en) | 2013-12-22 | 2013-12-22 | Gauze pad type thermal stress compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310710111.7A CN103615622B (en) | 2013-12-22 | 2013-12-22 | Gauze pad type thermal stress compensator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103615622A CN103615622A (en) | 2014-03-05 |
| CN103615622B true CN103615622B (en) | 2015-11-04 |
Family
ID=50166333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310710111.7A Expired - Fee Related CN103615622B (en) | 2013-12-22 | 2013-12-22 | Gauze pad type thermal stress compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103615622B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260944Y (en) * | 1996-11-30 | 1997-08-27 | 金光洙 | Double-way pipe compensator |
| CN2313143Y (en) * | 1997-12-16 | 1999-04-07 | 朱玉才 | Pipeline compensation connector |
| CN2437939Y (en) * | 1998-11-19 | 2001-07-04 | 吴文伦 | Compensable large-bore pipe joint |
| JP2010112436A (en) * | 2008-11-05 | 2010-05-20 | Sayama Seisakusho:Kk | Expansion joint of multi-vessel type water storage tank |
| CN101694259B (en) * | 2009-09-28 | 2011-06-15 | 江苏亿丰机械制造有限公司 | Maintenance-free bidirectional rotary compensator |
| CN203641754U (en) * | 2013-12-22 | 2014-06-11 | 李刚 | Gauze pad type thermal stress compensator |
-
2013
- 2013-12-22 CN CN201310710111.7A patent/CN103615622B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN103615622A (en) | 2014-03-05 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Zhiqiang Inventor after: Wang Zhiwei Inventor after: Xu Zhiqiang, Fan Rongrong, Li Shi, Tongxu Ning, He Yaqian, Liu Ting, Xu Min, Tang Daming, Zhang Xuequan, Wang Zhiwei, Li Xiaoming Inventor after: Fan Rongrong Inventor after: Li Shitong Inventor after: Xu Ning Inventor after: He Yaqian Inventor after: Liu Ting Inventor after: Xu Min Inventor after: Tang Daming Inventor after: Zhang Xuequan Inventor before: Li Gang |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151008 Address after: 257000 Shandong Province, Dongying City Dongcheng Jinyuan 1 District No. 58 1-502 Applicant after: Xu Zhiqiang Address before: 066000, Room 802, block A, 696 District, Yanshan Avenue, Hebei District, Qinhuangdao, China Applicant before: Li Gang |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Zhiqiang Inventor after: Wang Zhiwei Inventor after: Li Xiaoming Inventor after: Zuo Lei Inventor after: Wang Xiaojuan Inventor after: Jin Qingwei Inventor after: Si Li Inventor after: Pan Zhanjun Inventor after: Fan Rongrong Inventor after: Li Shitong Inventor after: Xu Ning Inventor after: He Yaqian Inventor after: Liu Ting Inventor after: Xu Min Inventor after: Tang Daming Inventor after: Zhang Xuequan Inventor before: Xu Zhiqiang Inventor before: Wang Zhiwei Inventor before: Li Xiaoming Inventor before: Fan Rongrong Inventor before: Li Shitong Inventor before: Xu Ning Inventor before: He Yaqian Inventor before: Liu Ting Inventor before: Xu Min Inventor before: Tang Daming Inventor before: Zhang Xuequan |
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| COR | Change of bibliographic data | ||
| 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: 20151104 Termination date: 20171222 |