CN101644372B - Vacuum compound heat insulating pipe - Google Patents
Vacuum compound heat insulating pipe Download PDFInfo
- Publication number
- CN101644372B CN101644372B CN200910063685.3A CN200910063685A CN101644372B CN 101644372 B CN101644372 B CN 101644372B CN 200910063685 A CN200910063685 A CN 200910063685A CN 101644372 B CN101644372 B CN 101644372B
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- Prior art keywords
- vacuum
- pipe
- heat insulating
- tube
- vacuum heat
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- 150000001875 compounds Chemical class 0.000 title abstract 4
- 239000010935 stainless steel Substances 0.000 claims abstract description 33
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 33
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 7
- 239000010962 carbon steel Substances 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 15
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The invention relates to a vacuum compound heat insulating pipe which comprises an inner pipe and an outer pipe and is characterized in that at least one layer of independent stainless steel or carbon steel vacuum heat insulating pipe is arranged between the inner pipe and the outer pipe, and the vacuum heat insulating pipe is a double-layer vacuum pumping pipe only formed by welding a stainless steel plate or a carbon steel plate. The vacuum compound heat insulating pipe has the heat insulating life of more than eight years, and the heat insulating effect can be ensured. In addition, when the inner pipe and the outer pipe of the vacuum compound heat insulating pipe are damaged, the stainless steel vacuum heat insulating pipe is conveniently replaced, can be repeatedly used and reduces the maintenance cost in a subsequent maintenance process.
Description
Technical field
The present invention relates to heat insulating tube, particularly relate to a kind of vacuum composite heat-insulating, be applicable to the insulation conveying of liquid, gas, be specially adapted to the down-hole oil tube of thick oil filling steam, oil recovery, this vacuum composite heat-insulating can reduce note evaporation loss, improves heat energy utilization.
Background technique
The oil pipe of current use is generally arranged on the down-hole of km, due to well depth, oil is thick, down-hole heat transfer temperature difference is large, and steel pipe thermal conductivity is higher, in oil pipe, during steam injection, heat loss is very large, and this oil pipe must adopt the insulated tubing that heat-shielding performance is superior for this reason.Existing insulated tubing insulation system is usually based on the thermal-protective material such as glass wool, aluminium silicate wool, be aided with aluminium foil, glass cloth etc., and being filled with the inert gas of low thermal conductivity after evacuation, the thermal conductivity of this insulated tubing is higher, and heat-shielding performance is difficult to permanent maintenance.
At the vacuum multi-layer heat-insulating technique that cryogenic engineering and space flight department use, although very ripe, but to apply it on insulated tubing and to be not easy, because, insulated tubing works at high temperature under high pressure, and working environment is very disliked slightly, and itself is not only thin but also long, obtain and keep vacuum very difficult for a long time, manufacturing difficulty of processing very large.Chinese patent CN2410410 discloses a kind of name and is called " viscous crude high efficient injection adopts double-purpose energy-saving oil pipe " utility model patent, and this patent adopts and arrange screening heat shielding equally spacedly between inner and outer pipes, and each screening between heat shielding is connected and the mode vacuumized by connecting ring.It is more that this patent respectively hides link between heat shielding, and inner and outer pipes is that carbon steel is easily exitted at high temperature under high pressure, and degree of vacuum is difficult to permanent maintenance, causes the heat insulating tube heat insulation life-span not long.
Summary of the invention
The object of the invention is the deficiency existed to solve above-mentioned background technology, providing a kind of structure simple, manufacturing easy processing, good heat-insulation effect, the vacuum composite heat-insulating that the heat insulation life-span is long.
For achieving the above object, the present invention adopts following technological scheme: vacuum composite heat-insulating, comprise inner and outer tubes, it is characterized in that between inner and outer pipe, be provided with the independent stainless steel of at least one deck or carbon steel vacuum heat insulation tube, this vacuum heat insulation tube is only with the double-layer vacuum pumping pipe that corrosion resistant plate or carbon steel board are welded.
In such scheme, described vacuum heat insulation tube between inner and outer pipe can be spliced vertically by least two joints.In this case, the wall thickness of vacuum heat insulation tube is more than or equal to 0.3 millimeter; Length is greater than 500 millimeters, is less than 5000 millimeters.
In such scheme, described vacuum heat insulation tube between inner and outer pipe also can be made up of one joint.In this case, the wall thickness of vacuum heat insulation tube is more than or equal to 0.3 millimeter.
In such scheme, can be provided with gap between described vacuum heat insulation tube and inner and outer pipe, this gap can be filled heat preserving and insulating material, filling with inert gas or be vacuumized.
In such scheme, the degree of vacuum of described vacuum heat insulation tube is preferably higher than 1 × 10
-1pa.
In such scheme, in described vacuum heat insulation tube, getter can be placed with.
In such scheme, centering ring can be provided with between wall and vacuum heat-insulation tube outer surface within the outer tube.
In such scheme, insulating moulding coating can be scribbled at the outer wall of interior pipe, the inwall of outer tube.
Because the present invention arranges independent stainless-steel vacuum heat insulating tube between inner and outer pipes, its effect of heat insulation and life-span depend primarily on stainless-steel vacuum heat insulating tube, and stainless-steel vacuum heat insulating tube manufactures easy processing, condition of high vacuum degree easily ensures, therefore, the heat insulation life-span of vacuum composite heat-insulating of the present invention can reach more than 8 years, and effect of heat insulation can ensure.
In addition, because stainless-steel vacuum heat insulating tube of the present invention is independent with sliceable, therefore, when the inner and outer pipes of vacuum composite heat-insulating damages, in the maintenance process in later stage, stainless-steel vacuum heat insulating tube is changed convenient, can reuse, reduce maintenance cost.
Accompanying drawing explanation
Fig. 1 is embodiment 1 structural representation.
Fig. 2 is embodiment 2 structural representation.
Fig. 3 is partial enlarged drawing in Fig. 1.
Fig. 4 is partial enlarged drawing in Fig. 2.
Fig. 5 is embodiment 3 structural representation.
Fig. 6 is embodiment 4 structural representation.
Fig. 7 is partial enlarged drawing in Fig. 5.
Fig. 8 is partial enlarged drawing in Fig. 6.
Embodiment
Embodiment 1: the present embodiment comprises interior pipe 1 and outer tube 2, the stainless-steel vacuum heat insulating tube 3 that one deck is independent is provided with between inner and outer pipe, the double-layer stainless steel vacuum-pumping tube that this stainless-steel vacuum heat insulating tube 3 is welded for being more than or equal to the thick corrosion resistant plate of 0.3mm, degree of vacuum is higher than 1 × 10
-1pa.Stainless-steel vacuum heat insulating tube 3 saves by two the first stainless-steel vacuum heat insulating tube 31 of being spliced vertically and the second stainless-steel vacuum heat insulating tube 32 is formed, first stainless-steel vacuum heat insulating tube 31 docks with the second stainless-steel vacuum heat insulating tube 32 to be provided with between end face between draw-in groove 4, the first stainless-steel vacuum heat insulating tube 31 of concaveconvex structure and the second stainless-steel vacuum heat insulating tube 32 and utilizes draw-in groove 4 to splice vertically.Be provided with gap between stainless-steel vacuum heat insulating tube 3 and inner and outer pipe, between outer tube 2 inwall and stainless-steel vacuum heat insulating tube 3 outer surface, be provided with centering ring 5, for supporting stainless-steel vacuum heat insulating tube 3.Getter 6 and other radiation proof material is placed with in stainless-steel vacuum heat insulating tube 3.
Embodiment 2: the present embodiment is substantially the same manner as Example 1, and difference is, it is step 7 that the first stainless-steel vacuum heat insulating tube 31 docks end face with the second stainless-steel vacuum heat insulating tube 32.
Embodiment 3: the present embodiment is substantially the same manner as Example 1, and difference is, it is plane 8 that the first stainless-steel vacuum heat insulating tube 31 docks end face with the second stainless-steel vacuum heat insulating tube 32.
Embodiment 4: the present embodiment is substantially the same manner as Example 1, and difference is, it is inclined-plane 9 that the first stainless-steel vacuum heat insulating tube 31 docks end face with the second stainless-steel vacuum heat insulating tube 32.
In the above-described embodiments, heat preserving and insulating material or filling with inert gas can be filled in the gap between described stainless-steel vacuum heat insulating tube 3 and inner and outer pipe, also can vacuumize.Stainless-steel vacuum heat insulating tube 3 also can be spliced to form by the above more piece of two joints, and connecting method is same as the previously described embodiments.Stainless-steel vacuum heat insulating tube 3 is placed between interior pipe 1 and outer tube 2, between the inwall of outer tube, fill heat preserving and insulating material.
Connect with box cupling 10 between vacuum composite heat-insulating of the present invention.
Claims (7)
1. vacuum composite heat-insulating, be made up of inner and outer tubes, it is characterized in that between inner and outer pipe, be provided with the independent stainless steel of at least one deck or carbon steel vacuum heat insulation tube, this vacuum heat insulation tube is only with the double-layer vacuum pumping pipe that corrosion resistant plate or carbon steel board are welded, and described vacuum heat insulation tube between inner and outer pipe is spliced vertically by least two joints.
2. vacuum composite heat-insulating according to claim 1, is characterized in that the wall thickness of described vacuum heat insulation tube is more than or equal to 0.3 millimeter; Length is greater than 500 millimeters, is less than 5000 millimeters.
3. vacuum composite heat-insulating according to claim 1, is characterized in that being provided with gap between described vacuum heat insulation tube and inner and outer pipe, this gap-fill heat preserving and insulating material, filling with inert gas or vacuumize.
4. vacuum composite heat-insulating according to claim 1, is characterized in that the degree of vacuum of described vacuum heat insulation tube is higher than 1 × 10
-1pa.
5. vacuum composite heat-insulating according to claim 1, is characterized in that being placed with getter in described vacuum heat insulation tube.
6. vacuum composite heat-insulating according to claim 1, is characterized in that being provided with centering ring between wall and vacuum heat-insulation tube outer surface within the outer tube.
7. the vacuum composite heat-insulating according to claim arbitrary in claim 1 to 6, is characterized in that scribbling insulating moulding coating at the outer wall of interior pipe, the inwall of outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910063685.3A CN101644372B (en) | 2009-08-21 | 2009-08-21 | Vacuum compound heat insulating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910063685.3A CN101644372B (en) | 2009-08-21 | 2009-08-21 | Vacuum compound heat insulating pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101644372A CN101644372A (en) | 2010-02-10 |
| CN101644372B true CN101644372B (en) | 2015-03-18 |
Family
ID=41656368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910063685.3A Active CN101644372B (en) | 2009-08-21 | 2009-08-21 | Vacuum compound heat insulating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101644372B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832108B (en) * | 2010-05-07 | 2013-02-27 | 湖北贵族真空科技股份有限公司 | Vacuum oil tubing coupling |
| CN102338262A (en) * | 2010-07-20 | 2012-02-01 | 益科博能源科技（上海）有限公司 | Vacuumizing device of thermal insulation system |
| CN102374363A (en) * | 2010-08-25 | 2012-03-14 | 益科博能源科技（上海）有限公司 | Vacuum tube for thermal insulation system |
| CN101956887B (en) * | 2010-09-15 | 2012-10-31 | 湖北贵族真空科技股份有限公司 | Vacuum transmission pipe and connecting structure thereof |
| CN101943298B (en) * | 2010-09-15 | 2012-07-25 | 湖北贵族真空科技股份有限公司 | Vacuum composite delivery pipe and connecting structure |
| CN102536164A (en) * | 2010-12-21 | 2012-07-04 | 熊斌辉 | Ultrahigh-temperature well completion technology |
| CN102392607B (en) * | 2011-07-22 | 2014-12-03 | 宝鸡石油钢管有限责任公司 | Continuous heat insulating oil pipe and manufacturing method thereof |
| CN102900913A (en) * | 2012-10-18 | 2013-01-30 | 山东鸿盛石油化工装备有限公司 | High-vacuum thermal sleeve |
| CN103277055B (en) * | 2013-06-04 | 2015-04-08 | 中国海洋石油总公司 | Tubing centralizer |
| CN103759096A (en) * | 2013-12-31 | 2014-04-30 | 吴江亿泰真空设备科技有限公司 | Vacuum heat-insulated pipe |
| CN103850653B (en) * | 2014-02-17 | 2016-04-20 | 胜利油田孚瑞特石油装备有限责任公司 | The manufacture method of insulation oil sleeve pipe |
| CN103867173A (en) * | 2014-02-17 | 2014-06-18 | 胜利油田孚瑞特石油装备有限责任公司 | Well-completion pipe column for heat-insulated oil casing and manufacturing method thereof |
| CN103850654B (en) * | 2014-02-17 | 2016-05-04 | 胜利油田孚瑞特石油装备有限责任公司 | The manufacture method of the heat insulation tubing and casing of prestressing force |
| CN103883263A (en) * | 2014-04-23 | 2014-06-25 | 中国石油大学(北京) | Aerogel composite heat insulation sleeve |
| CN104406011A (en) * | 2014-10-27 | 2015-03-11 | 宁夏天纵泓光余热发电技术有限公司 | Flue gas vacuum insulation tube for submerged arc furnace |
| CN104612628A (en) * | 2015-02-02 | 2015-05-13 | 中国海洋石油总公司 | Method for prolonging service life of vacuum insulated oil tube by filling high-pressure argon |
| CN106703707A (en) * | 2015-11-16 | 2017-05-24 | 胜利油田胜机石油装备有限公司 | Composite-structure heat-insulating oil pipe |
| CN107255026A (en) * | 2017-08-22 | 2017-10-17 | 中国石油大学(华东) | A kind of heavy crude heat extraction physical simulating device and its method of work based on vacuum method |
| CN108851244B (en) * | 2018-07-24 | 2024-07-12 | 深圳麦克韦尔科技有限公司 | Baking smoking set and vacuum heat-insulating heating assembly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1391641A (en) * | 1999-11-22 | 2003-01-15 | 布伊格海上设备公司 | Insulating tubular complex for pipes |
| CN201090201Y (en) * | 2007-09-24 | 2008-07-23 | 辽河石油勘探局 | Antisepsis fire resistant heat insulation pipe |
-
2009
- 2009-08-21 CN CN200910063685.3A patent/CN101644372B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1391641A (en) * | 1999-11-22 | 2003-01-15 | 布伊格海上设备公司 | Insulating tubular complex for pipes |
| CN201090201Y (en) * | 2007-09-24 | 2008-07-23 | 辽河石油勘探局 | Antisepsis fire resistant heat insulation pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101644372A (en) | 2010-02-10 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Vacuum composite insulation pipe Effective date of registration: 20220120 Granted publication date: 20150318 Pledgee: Bank of China Limited Huanggang branch Pledgor: HUBEI GUIZU VACUUM SCIENCE & TECHNOLOGY CO.,LTD. Registration number: Y2022420000022 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230918 Granted publication date: 20150318 Pledgee: Bank of China Limited Huanggang branch Pledgor: HUBEI GUIZU VACUUM SCIENCE & TECHNOLOGY CO.,LTD. Registration number: Y2022420000022 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Vacuum composite insulation pipe Granted publication date: 20150318 Pledgee: Bank of China Limited Huanggang branch Pledgor: HUBEI GUIZU VACUUM SCIENCE & TECHNOLOGY CO.,LTD. Registration number: Y2024980006732 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |