CN101943298B - Vacuum composite delivery pipe and connecting structure - Google Patents
Vacuum composite delivery pipe and connecting structure Download PDFInfo
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- CN101943298B CN101943298B CN2010102821654A CN201010282165A CN101943298B CN 101943298 B CN101943298 B CN 101943298B CN 2010102821654 A CN2010102821654 A CN 2010102821654A CN 201010282165 A CN201010282165 A CN 201010282165A CN 101943298 B CN101943298 B CN 101943298B
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- 239000002131 composite material Substances 0.000 title abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000011253 protective coating Substances 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000020169 heat generation Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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Abstract
The invention relates to a vacuum composite delivery pipe and a connecting structure. The delivery pipe comprises inner pipes and outer pipes and is characterized in that: the inner pipes are metal pipes; the outer pipes are stainless steel vacuum heat-insulating pipes; adjacent inner pipes are integrated by butt welding; and adjacent outer pipes are connected with each other in an axial direction through a connecting piece. The delivery pipe and the connecting structure have the advantages of good heat preserving effect, long vacuum service life, convenient maintenance and convenient field installation and are particularly suitable for solar electrical energy generation, heat generation and heat transport in the field of chemical industries.
Description
Technical field
The present invention relates to the high temperature media delivery pipe, relate in particular to a kind of compound transport tube of vacuum and linkage structure that is used to carry high-temperature steam, oil or fuse salt, be suitable for the heat transport of solar electrical energy generation, heating and chemical field.
Background technique
Heat transfer tube is a kind of pipeline that is widely used in solar electrical energy generation, heating and chemical field; Existing heat transfer tube generally is one or more layers thermal insulating material of outer surface parcel in common pipe; In field of solar thermal power generation, require heat transfer tube to have good heat insulation effect, so just need be at the outer surface wrapped multiple thermal insulating material of common pipe; Cause heat transfer tube thicker, and the heat transport effect is undesirable.
Chinese patent CN201449074 discloses the utility model patent that a kind of name is called " two vacuum long lifetime heat collecting pipe ", and this patent adopts triplex glass pipe, two vacuum structure, the getter of in two vacuum structures, annotating simultaneously.The technological scheme of this patent is applied to heat transfer tube, though duplex tube itself has good heat insulation effect, glass tube is frangible, is not suitable for long Distance Transmission.
Summary of the invention
The objective of the invention is provides a kind of high insulating effect in order to solve the deficiency that the above-mentioned background technology exists, and vacuum life is long, and is easy to maintenance, is convenient to compound transport tube of field erected vacuum and linkage structure.
For realizing above-mentioned purpose; The present invention adopts following technological scheme: compound transport tube of vacuum and linkage structure, and pipe and outer tube is characterized in that in comprising; Pipe is metal tube in said; Said outer tube is the stainless-steel vacuum heat insulating tube, and butt welding is whole between the adjacent interior pipe, is axially connected by link between the adjacent outer tube.
In order to improve effect of heat insulation, between inner and outer pipe, can be provided with thermal-protective coating, this thermal-protective coating is made up of the material with radiation proof and thermal insulation property.
Preferably, said vacuum heat insulation tube is the individual layer vacuum heat insulation tube that is made up of two-layer pipeline.
Preferably, said vacuum heat insulation tube is the double-layer vacuum heat insulating tube that is made up of three layers of pipeline.
In such scheme; Link axial between the adjacent outer tube of said connection can be made up of box cupling and Sealing, and said box cupling is the vacuum heat-insulation box cupling, and its internal surface is provided with screw thread; Match with the screw thread of outer tube end outer surface; Box cupling internal surface screw thread respectively with being threaded of adjacent two outer tube end outer surface, along the circumferential direction be provided with a circle groove at the outer tunnel end face, be provided with Sealing in the groove between adjacent two outer tube end faces.
Say that further said every layer of vacuum heat insulation tube processed by corrosion resistant plate, the end is welded with seal plug, seals welding between plug and every layer of vacuum heat insulation tube inner and outer pipe end face, and groove is arranged on the seal plug.
In such scheme; Link axial between the adjacent outer tube of said connection also can be made up of flange, Sealing and connecting bolt; Said flange is welded in the outer tube end, is connected through connecting bolt by flange between adjacent two outer tubes, is lined with sealing gasket between the flange.
Say that further said every layer of vacuum heat insulation tube processed by corrosion resistant plate, the end is welded with seal plug, seals welding between plug and every layer of vacuum heat insulation tube inner and outer pipe end face, and flange is arranged on the seal plug, and said flange and seal plug are connected as a single entity.
Preferably, be placed with getter in the said stainless-steel vacuum heat insulating tube, and scribble or be wound with radiation proof material at the outer surface of the inner layer pipe of stainless-steel vacuum heat insulating tube.
In such scheme, the outer surface of adjacent two outer tube connection parts preferably coats thermal insulating material and carries out the partial insulation processing.To improve the seam crossing heat insulation effect.
Because the present invention adopts outer vacuum tube; The composite structure of inner layer metal pipe, and be connected as a single entity with the field welding mode between the adjacent inner layer metal tube, seal with sealing gasket between the adjacent outer vacuum tube end face; Therefore; The compound transport tube of vacuum according to the invention itself not only has good heat insulation effect, and its connection part also can effectively prevent heat leak, has increased substantially the heat-shielding performance of compound transport tube of vacuum itself and joint.
The present invention has high insulating effect, and vacuum life is long, and is easy to maintenance, is convenient to field erected advantage, is specially adapted to the heat transport of solar electrical energy generation, heating and chemical field.
Through accompanying drawing and embodiment the present invention is explained further details below, so that technician's of the same trade understanding.
Description of drawings
Fig. 1 is the embodiment of the invention 1 structural representation;
Fig. 2 is an a place partial enlarged drawing among Fig. 1;
Fig. 3 is the embodiment of the invention 2 structural representations;
Fig. 4 is a b place partial enlarged drawing among Fig. 3;
Embodiment
Embodiment 1: present embodiment is made up of interior pipe 1, outer tube and the thermal-protective coating 2 that is arranged between the inner and outer pipe.Said outer tube is the individual layer vacuum heat insulation tube that is made up of two-layer Stainless Steel Tube 3, or by the double-layer vacuum heat insulating tube that three layers of Stainless Steel Tube 3 constitute, is the vacuum heat-insulating layer 4 that vacuumizes between the adjacent two layers Stainless Steel Tube 3.End, every vacuum heat insulation tube two ends is welded with the plug 5 that is used for sealed vacuum thermal-protective coating 4; Seal welding between plug 5 and every layer of Stainless Steel Tube 3 end face, a circle groove is set in the plug exterior edge face, axially connect between adjacent two outer tubes by link; The link of present embodiment is made up of box cupling 6 and Sealing 7; Said box cupling 6 is the vacuum heat-insulation box cupling, and its internal surface is provided with screw thread, matches with the screw thread of outer tube end outer surface; Box cupling internal surface screw thread respectively with being threaded of adjacent two outer tube end outer surface, Sealing is placed in the groove between adjacent two outer tube end face plugs 5.
Pipe 1 is a metal tube in said.
During use, be welded to connect in the erecting bed vertically between managing 1 in earlier will adjacent two; Twine or placement thermal-protective coating 2 at interior pipe 1 outer surface then, this thermal-protective coating 2 is made up of the material with radiation proof and thermal insulation property; Secondly, outer tube sleeve on the thermal-protective coating 2 of inner tube outer surface, is placed on Sealing 7 in the groove between adjacent two outer tube end face plugs 5; Adjacent two outer tubes are connected with engage thread with box cupling 6 at last.
Embodiment 2: present embodiment and embodiment 1 are basic identical; Difference is; Link axial between the adjacent outer tube of said connection is made up of flange 8, sealing gasket 10 and connecting bolt 9, and said flange 8 is connected as a single entity with plug 5, is welded in the outer tube end; Connect through connecting bolt 9 by flange 8 between adjacent two outer tubes, be lined with sealing gasket 10 between the flange.
In the above-described embodiments, can coat thermal insulating material at the outer surface of adjacent two outer tube connection parts and carry out the partial insulation processing.
Heat transfer tube of the present invention not only itself has good heat insulation and preservation effect, and connection part also has good heat-shielding performance between the adjacent channel.
Claims (3)
1. compound transport tube of vacuum and linkage structure are managed and outer tube in comprising, it is characterized in that; Pipe is metal tube in said, and said outer tube is the stainless-steel vacuum heat insulating tube, and every layer of vacuum heat insulation tube processed by corrosion resistant plate; Every layer of vacuum heat-insulation tube end is welded with seal plug; Seal welding between plug and every layer of vacuum heat insulation tube inner and outer pipe end face, butt welding is whole between the adjacent interior pipe, is axially connected by link between the adjacent outer tube; Be placed with getter in the said stainless-steel vacuum heat insulating tube, and scribble or be wound with radiation proof material at the outer surface of the inner layer pipe of stainless-steel vacuum heat insulating tube; The outer surface of adjacent two outer tube connection parts coats thermal insulating material and carries out the partial insulation processing; Be provided with thermal-protective coating between the said inner and outer pipe, this thermal-protective coating is made up of the material with radiation proof and thermal insulation property;
Said link adopts any one in following two kinds:
First kind of link is made up of box cupling and Sealing; Said box cupling is the vacuum heat-insulation box cupling, and its internal surface is provided with screw thread, matches with the screw thread of outer tube end outer surface; Box cupling internal surface screw thread respectively with being threaded of adjacent two outer tube end outer surface; Along the circumferential direction be provided with a circle groove at the outer tunnel end face, be provided with Sealing in the groove between adjacent two outer tube end faces, groove is arranged on the seal plug;
Second kind of link is made up of flange, sealing gasket and connecting bolt, and said flange is welded in the outer tube end, and said flange and seal plug are connected as a single entity, and connected through connecting bolt by flange between adjacent two outer tubes, is lined with sealing gasket between the flange.
2. compound transport tube of vacuum according to claim 1 and linkage structure is characterized in that, said vacuum heat insulation tube is the individual layer vacuum heat insulation tube that is made up of two-layer pipeline.
3. compound transport tube of vacuum according to claim 1 and linkage structure is characterized in that, said vacuum heat insulation tube is the double-layer vacuum heat insulating tube that is made up of three layers of pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102821654A CN101943298B (en) | 2010-09-15 | 2010-09-15 | Vacuum composite delivery pipe and connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102821654A CN101943298B (en) | 2010-09-15 | 2010-09-15 | Vacuum composite delivery pipe and connecting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943298A CN101943298A (en) | 2011-01-12 |
| CN101943298B true CN101943298B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102821654A Active CN101943298B (en) | 2010-09-15 | 2010-09-15 | Vacuum composite delivery pipe and connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101943298B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352940B (en) * | 2011-09-28 | 2013-07-24 | 杭州杭氧低温液化设备有限公司 | Vacuum heat insulating low-temperature pipe joint |
| AU2012344044A1 (en) * | 2011-11-28 | 2014-06-19 | Basf Se | Method for producing insulated casing pipes in a continuous production process |
| CN105351684A (en) * | 2015-12-06 | 2016-02-24 | 白明军 | Pipeline system with vacuum heat preservation function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799102A (en) * | 2010-03-31 | 2010-08-11 | 益科博能源科技（上海）有限公司 | Vacuum heat insulation pipeline and manufacturing method thereof |
| CN201547424U (en) * | 2009-11-20 | 2010-08-11 | 湖北贵族真空科技股份有限公司 | Structure for connecting composite vacuum heat-insulating pipes |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3694405B2 (en) * | 1997-11-07 | 2005-09-14 | 株式会社ベネックス | Heat insulation pipe for fluid transportation piping |
| GB0000243D0 (en) * | 2000-01-07 | 2000-03-01 | British Steel Ltd | Improved insulated pipework system |
| EP1619436A3 (en) * | 2004-07-20 | 2007-05-02 | Chart Industries, Inc. | Cryogenic seal for vacuum-insulated pipe |
| CN2823766Y (en) * | 2005-09-21 | 2006-10-04 | 张乾光 | Metal vacuum heat insulation sleeve |
| CN2898541Y (en) * | 2006-06-01 | 2007-05-09 | 王忠毅 | Vacuum thermal-insulating pipe sleeve |
| CN101644372B (en) * | 2009-08-21 | 2015-03-18 | 湖北贵族真空科技股份有限公司 | Vacuum compound heat insulating pipe |
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2010
- 2010-09-15 CN CN2010102821654A patent/CN101943298B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201547424U (en) * | 2009-11-20 | 2010-08-11 | 湖北贵族真空科技股份有限公司 | Structure for connecting composite vacuum heat-insulating pipes |
| CN101799102A (en) * | 2010-03-31 | 2010-08-11 | 益科博能源科技（上海）有限公司 | Vacuum heat insulation pipeline and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-193899A 1999.07.21 |
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| CN101943298A (en) | 2011-01-12 |
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| C06 | Publication | ||
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| 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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Vacuum composite transmission pipe and connecting structure Effective date of registration: 20220120 Granted publication date: 20120725 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 |
Date of cancellation: 20230918 Granted publication date: 20120725 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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Vacuum composite transfer tube and connecting structure Granted publication date: 20120725 Pledgee: Bank of China Limited Huanggang branch Pledgor: HUBEI GUIZU VACUUM SCIENCE & TECHNOLOGY CO.,LTD. Registration number: Y2024980006732 |