CN103615622A - Gauze pad type heat stress compensator - Google Patents
Gauze pad type heat stress compensator Download PDFInfo
- Publication number
- CN103615622A CN103615622A CN201310710111.7A CN201310710111A CN103615622A CN 103615622 A CN103615622 A CN 103615622A CN 201310710111 A CN201310710111 A CN 201310710111A CN 103615622 A CN103615622 A CN 103615622A
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- China
- Prior art keywords
- compensator
- sleeve
- gauze pad
- screw thread
- main pipeline
- Prior art date
- 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.)
- Granted
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- 230000008642 heat stress Effects 0.000 title abstract 7
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims description 32
- 230000008646 thermal stress Effects 0.000 claims description 19
- 210000004907 gland Anatomy 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 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
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 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
- 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
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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 invention relates to a gauze pad type heat stress compensator which belongs to the technical field of heat stress compensators. In the gauze pad type heat stress compensator, a high-strength thread is processed on a butt joint end of a main pipeline, a high-pressure screw thread pressure cover is connected to the main pipeline, threads are arranged inside and outside the high-pressure screw thread pressure cover, the thread inside the high-pressure screw thread pressure cover is connected to the thread of the main pipeline; a compensator sleeve A and a compensator sleeve B are connected to the thread outside the high-pressure screw thread pressure cover; a high-pressure sealing ring is arranged at the front end of the main pipeline; a concentric circle structure is arranged at a butt joint part of the middles of the compensator sleeve A and the compensator sleeve B and a gap is remained between the compensator sleeve A and the compensator sleeve B, flanges are arranged at two ends of each of the compensator sleeve A and the compensator sleeve B, through holes are formed in the flanges, sleeve bolts are arranged in the through holes so that two ends of the pipeline are concentric and through; compensator inner cylinders are arranged inside cavities of the compensator sleeve A and the compensator sleeve B, and a plurality of gauze pad type base bodies are arranged inside the compensator inner cylinders. According to the gauze pad type heat stress compensator provided by the invention, the heat stress generated in a use process can be made up, elimination of the heat stress in a process of using the pipeline is facilitated, and the safety is improved.
Description
Technical field
The present invention relates to a kind of gauze pad formula thermal stress compensation device, belong to thermal stress compensation device technical field.
Background technique
In pipeline is installed, need to adopt some pipeline compensators, because pipeline is generally in use, can be because substituting season and fed sheet of a media will expand with heat and contract with cold higher than normal temperature, length changes.When temperature is higher or pipeline is longer, can cause pipeline to surpass ultimate stress own and break, even destroy equipment and the support being connected.Therefore, can not ignore the thermal stress of swell increment and generation thereof, must take indemnifying measure, reduce the stress that produces when pipeline expands with heat and contract with cold, thermal stress be reduced under pipeline allowable stress, to guarantee pipeline stabilization and trouble free service.
In order to reduce the thermal stress of pipeline, generally between pipeline, install compensator, or utilize the bending of pipeline itself with auto-compensation.In the configuration of pipeline, should pay the utmost attention to the natural compensating action that utilizes pipe bending, this to utilize the automatic compensating of pipeline self length change be best bet, when natural compensation can not meet the demands, compensator can be set.Specifically have: (1) filler compensator: material filling type compensator claims again pipe-type compensator, it can be divided into two kinds of cast iron and steels.The working principle of filler compensator is when pipeline expands with heat and contract with cold, and large small sleeve relatively moves to absorb its expansion length.Between filler and sleeve, because friction produces reaction thrust, its size is directly proportional to manifold pressure, and irrelevant with the amount of deformation of pipeline.During installation, the size of material filling type compensator is overlapped simple two ends respectively a fulcrum, and one fixing, a slip.The advantage of this compensator is that floor space is little, installs simply, and fluid resistance is little, and wall thickness is corrosion-resistant, has larger compensation ability.Its shortcoming is that cost is higher, makes comparatively difficulty, easily leaks, leaks gas, and it is applicable to, and the temperature difference is large, internal pressure is low and the antileakaging pipeline of medium, in normal pressure gas pipeline, often adopts.(2) auto-compensation of pipeline it be to utilize natural torsion in pipe laying to carry out the thermal stretching distortion of extraction duct, common are L shaped or z shape.L shaped and z shape compensator (claiming again nature compensator) can utilize ducted elbow to form, and is convenient to install.In pipeline construction, should make full use of the compensation that these two kinds of compensators are done thermal expansion, and then consider to adopt the compensator of 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, intensity a little less than, be generally used for diameter large, the medium that low pressure and being afraid of is leaked, conventional in blast furnace gas is carried.Drum type compensator advantage is to make to be easier to, and investment economizes; Shortcoming is that corrosion resistance is bad.Based on above-mentioned technical deficiency, the present invention adopts another mode to reduce thermal stress just.
Summary of the invention
The object of the present invention is to provide a kind of gauze pad formula thermal stress compensation device, to can eliminate better pipeline pressure, provide a kind of better mode to carry out thermal stress release and processing.
To achieve these goals, technological scheme of the present invention is as follows.
A gauze pad formula thermal stress compensation device, comprises main pipeline, and wherein, main pipeline butt end is processed with high strength screw thread, is connected with high pressure screw thread gland on main pipeline, the inside and outside screw thread that is provided with of high pressure screw thread gland, and internal whorl is connected on main pipeline screw thread; On external screw-thread, be connected with compensator sleeve A and compensator sleeve B; Main pipeline front end is provided with high pressure sealing ring; Compensator sleeve A and compensator sleeve B middle part joint are provided with concentric structure preset clearance, and two ends are provided with flange, are provided with perforation on flange, and installing sleeve bolt, to guarantee 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 a plurality of gauze pad matrix bodies.
Further, compensator sleeve A is provided with gauze pad matrix lower end near gauze pad matrix body end; Compensator sleeve B is provided with gauze pad matrix upper end near gauze pad matrix body end.
Further, in compensator sleeve A and compensator sleeve B, be provided with internal thread.
Further, sleeve bolt two ends are provided with packing ring and nut with securing means.
Further, gauze pad matrix body adopts Pierced structure, and is provided with gap filling material.
In this invention, main pipeline butt end is processed with high strength screw thread, in high pressure screw thread gland, is outside equipped with screw thread, 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 preset clearance, and two ends are provided with flange, is provided with perforation on flange, and bolt is installed, to guarantee 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.High strength sleeve bolt is responsible for coupling sleeve, provides symmetric form protection to whole concentricity simultaneously.Because main pipeline and compensator inner core have certain gap, must provide safe and reliable high pressure sealing ring to run well guaranteeing.Gauze pad matrix lower end and gauze pad matrix upper end some difference of two-end structure, its structure is in order to connect compensator sleeve A, compensator sleeve B sleeve, gauze pad matrix body.Compensator inner core, two ends are connected with main pipeline gap for strain headspace, and this gap also can be filled by crude oil and be flowed unimpeded.Gauze pad matrix body, adopts special Pierced structure with guiding 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 guarantee that pipeline is normally used, and the otherness of gauze pad matrix lower end and gauze pad matrix upper end two-end structure is to guarantee the connection of compensator.Compensator inner core, two ends are connected with main pipeline gap for strain headspace, and this gap also can be filled by crude oil and be flowed unimpeded.Gauze pad matrix body, adopts special Pierced structure with guiding strain, and is provided with gap filling material with compensate for strain.Generally speaking, gauze pad formula thermal stress compensation device of the present invention, can make up the thermal stress producing in using process, contributes to eliminate 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 body; 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, to better understand the present invention.
Gauze pad formula thermal stress compensation device 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, on main pipeline 1, be connected with high pressure screw thread gland 2, the inside and outside screw thread that is provided with of high pressure screw thread gland 2, internal whorl is connected on main pipeline 1 screw thread; On external screw-thread, be connected with compensator sleeve A4 and compensator sleeve B9; Main pipeline 1 front end is provided with high pressure sealing ring 3; Compensator sleeve A4 and compensator sleeve B9 middle part joint are provided with concentric structure preset clearance, and two ends are provided with flange, are provided with perforation on flange, and installing sleeve bolt 10, to guarantee 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 are provided with a plurality of gauze pad matrix bodies 6.Compensator sleeve A4 is provided with gauze pad matrix lower end 5 near gauze pad matrix body 6 ends; Compensator sleeve B9 is provided with gauze pad matrix upper end 7 near gauze pad matrix body 6 ends.In compensator sleeve A4 and compensator sleeve B9, be provided with internal thread.Sleeve bolt 10 two ends are provided with packing ring 12 and nut 11 securing meanss.Gauze pad matrix body adopts Pierced structure, and is provided with gap filling material.
In this invention, main pipeline 1 butt end is processed with high strength screw thread, in high pressure screw thread gland 2, is outside equipped with screw thread, 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 preset clearance, and two ends are provided with flange, is provided with perforation on flange, and bolt is installed, to guarantee 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.High strength sleeve bolt 10 is responsible for coupling sleeve, provides symmetric form protection to whole concentricity simultaneously.Because main pipeline 1 and compensator inner core 8 have certain gap, must provide safe and reliable high pressure sealing ring 3 to run well guaranteeing.Gauze pad matrix lower end 5 and gauze pad matrix upper end some difference of 7 two-end structures, its structure is in order to connect compensator sleeve A4, compensator sleeve B9 sleeve, gauze pad matrix body 6.Compensator inner core 8, two ends are connected with main pipeline 1 gap for strain headspace, and this gap also can be filled by crude oil and be flowed unimpeded.Gauze pad matrix body 6, adopts special Pierced structure with guiding 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 formula thermal stress compensation device, comprise main pipeline, it is characterized in that: described main pipeline butt end is processed with high strength screw thread, on described main pipeline, be connected with high pressure screw thread gland, the inside and outside screw thread that is provided with of described high pressure screw thread gland, internal whorl is connected on main pipeline screw thread, is connected with compensator sleeve A and compensator sleeve B on external screw-thread; Described main pipeline front end is provided with high pressure sealing ring; Described compensator sleeve A and compensator sleeve B middle part joint are provided with concentric structure preset clearance, and two ends are provided with flange, are provided with perforation on flange, installing sleeve bolt; Described compensator sleeve A and compensator sleeve B inside cavity are provided with compensator inner core, and described compensator inner core inside is provided with a plurality of gauze pad matrix bodies.
2. gauze pad formula thermal stress compensation device according to claim 1, is characterized in that: described compensator sleeve A is provided with gauze pad matrix lower end near gauze pad matrix body end; Described compensator sleeve B is provided with gauze pad matrix upper end near gauze pad matrix body end.
3. gauze pad formula thermal stress compensation device according to claim 1, is characterized in that: in described compensator sleeve A and compensator sleeve B, be provided with internal thread.
4. gauze pad formula thermal stress compensation device 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 formula thermal stress compensation device according to claim 1, is characterized in that: described gauze pad matrix body 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 true CN103615622A (en) | 2014-03-05 |
| CN103615622B CN103615622B (en) | 2015-11-04 |
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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) |
Citations (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 |
| CN101694259A (en) * | 2009-09-28 | 2010-04-14 | 江苏亿丰机械制造有限公司 | Maintenance-free bidirectional rotary compensator |
| JP2010112436A (en) * | 2008-11-05 | 2010-05-20 | Sayama Seisakusho:Kk | Expansion joint of multi-vessel type water storage tank |
| 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
Patent Citations (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 |
| CN101694259A (en) * | 2009-09-28 | 2010-04-14 | 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 |
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| Publication number | Publication date |
|---|---|
| CN103615622B (en) | 2015-11-04 |
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| Date | Code | Title | Description |
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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 |
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| 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 |