CN101943298A - Vacuum composite delivery pipe and connecting structure - Google Patents

Vacuum composite delivery pipe and connecting structure Download PDF

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Publication number
CN101943298A
CN101943298A CN 201010282165 CN201010282165A CN101943298A CN 101943298 A CN101943298 A CN 101943298A CN 201010282165 CN201010282165 CN 201010282165 CN 201010282165 A CN201010282165 A CN 201010282165A CN 101943298 A CN101943298 A CN 101943298A
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China
Prior art keywords
tube
vacuum
vacuum heat
adjacent
linkage structure
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CN 201010282165
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Chinese (zh)
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CN101943298B (en
Inventor
白明军
吴平
张琰
周生宣
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HUBEI NOBLE VACUUM TECHNOLOGY Co Ltd
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HUBEI NOBLE VACUUM TECHNOLOGY Co Ltd
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Priority to CN2010102821654A priority Critical patent/CN101943298B/en
Publication of CN101943298A publication Critical patent/CN101943298A/en
Application granted granted Critical
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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

Compound transport tube of vacuum and linkage structure
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 that the outer surface in common pipe wraps up one or more layers thermal insulating material, 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 annotating in two vacuum structures 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 achieving the above object, the present invention adopts following technological scheme: compound transport tube of vacuum and linkage structure, pipe and outer tube in comprising, it is characterized in that, pipe is metal tube in described, described 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 of the material with radiation proof and thermal insulation property.
Preferably, described vacuum heat insulation tube is the individual layer vacuum heat insulation tube that is made of two-layer pipeline.
Preferably, described vacuum heat insulation tube is the double-layer vacuum heat insulating tube that is made of three layers of pipeline.
In such scheme, link axial between the adjacent outer tube of described connection can be made of box cupling and Sealing, described box cupling is the vacuum heat-insulation box cupling, 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 described every layer of vacuum heat insulation tube made by corrosion resistant plate, the end is welded with seal plug, seal welding between plug and the 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 described connection also can be made of flange, Sealing and connecting bolt, described flange is welded in the outer tube end, is connected by connecting bolt by flange between adjacent two outer tubes, is lined with sealing gasket between the flange.
Say that further described every layer of vacuum heat insulation tube made by corrosion resistant plate, the end is welded with seal plug, seal welding between plug and the every layer of vacuum heat insulation tube inner and outer pipe end face, and flange is arranged on the seal plug, and described flange and seal plug are connected as a single entity.
Preferably, be placed with getter in the described 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 of the present 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.
Below by drawings and Examples the present invention is described in further details, 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.Described outer tube is the individual layer vacuum heat insulation tube that is made 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, one 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 of box cupling 6 and Sealing 7, described box cupling 6 is the vacuum heat-insulation box cupling, 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, Sealing is placed in the groove between adjacent two outer tube end face plugs 5.
Pipe 1 is a metal tube in described.
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 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; Threadably adjacent two outer tubes are connected with box cupling 6 at last.
Embodiment 2: present embodiment is substantially the same manner as Example 1, difference is, link axial between the adjacent outer tube of described connection is made of flange 8, sealing gasket 10 and connecting bolt 9, described flange 8 is connected as a single entity with plug 5, be welded in the outer tube end, connect by 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 the connection position also has good heat-proof quality between the adjacent channel.

Claims (10)

1. compound transport tube of vacuum and linkage structure comprise interior pipe and outer tube, it is characterized in that, described interior pipe is metal tube, and described 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.
2. compound transport tube of vacuum according to claim 1 and linkage structure is characterized in that, are provided with thermal-protective coating between the described inner and outer pipe, and this thermal-protective coating is made of the material with radiation proof and thermal insulation property.
3. compound transport tube of vacuum according to claim 1 and linkage structure is characterized in that, described vacuum heat insulation tube is the individual layer vacuum heat insulation tube that is made of two-layer pipeline.
4. compound transport tube of vacuum according to claim 1 and linkage structure is characterized in that, described vacuum heat insulation tube is the double-layer vacuum heat insulating tube that is made of three layers of pipeline.
5. compound transport tube of vacuum according to claim 1 and linkage structure, it is characterized in that, link axial between the adjacent outer tube of described connection is made of box cupling and Sealing, described box cupling is the vacuum heat-insulation box cupling, 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.
6. compound transport tube of vacuum according to claim 5 and linkage structure, it is characterized in that described every layer of vacuum heat insulation tube made by corrosion resistant plate, the end is welded with seal plug, seal welding between plug and the every layer of vacuum heat insulation tube inner and outer pipe end face, groove is arranged on the seal plug.
7. compound transport tube of vacuum according to claim 1 and linkage structure, it is characterized in that, link axial between the adjacent outer tube of described connection is made of flange, Sealing and connecting bolt, described flange is welded in the outer tube end, connect by connecting bolt by flange between adjacent two outer tubes, be lined with sealing gasket between the flange.
8. compound transport tube of vacuum according to claim 7 and linkage structure, it is characterized in that, described every layer of vacuum heat insulation tube made by corrosion resistant plate, the end is welded with seal plug, seal welding between plug and the every layer of vacuum heat insulation tube inner and outer pipe end face, flange is arranged on the seal plug, and described flange and seal plug are connected as a single entity.
9. compound transport tube of vacuum according to claim 1 and linkage structure is characterized in that, are placed with getter in the described 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.
10. according at least one compound transport tube of the described vacuum of claim among the claim 1-9 and linkage structure, it is characterized in that the outer surface of adjacent two outer tube connection parts coats thermal insulating material to carry out partial insulation and handle.
CN2010102821654A 2010-09-15 2010-09-15 Vacuum composite delivery pipe and connecting structure Active CN101943298B (en)

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)

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CN101943298A true CN101943298A (en) 2011-01-12
CN101943298B CN101943298B (en) 2012-07-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102352940A (en) * 2011-09-28 2012-02-15 杭州杭氧低温液化设备有限公司 Vacuum heat insulating low-temperature pipe joint
CN104067044A (en) * 2011-11-28 2014-09-24 巴斯夫欧洲公司 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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11193899A (en) * 1997-11-07 1999-07-21 Benkan Corp Heat insulating pipe for fluid conveying pipeline
WO2001050055A1 (en) * 2000-01-07 2001-07-12 Corus Uk Limited Improved insulated pipework system
EP1619436A2 (en) * 2004-07-20 2006-01-25 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
CN101644372A (en) * 2009-08-21 2010-02-10 湖北贵族真空科技股份有限公司 Vacuum compound heat insulating pipe
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11193899A (en) * 1997-11-07 1999-07-21 Benkan Corp Heat insulating pipe for fluid conveying pipeline
WO2001050055A1 (en) * 2000-01-07 2001-07-12 Corus Uk Limited Improved insulated pipework system
EP1619436A2 (en) * 2004-07-20 2006-01-25 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
CN101644372A (en) * 2009-08-21 2010-02-10 湖北贵族真空科技股份有限公司 Vacuum compound heat insulating pipe
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102352940A (en) * 2011-09-28 2012-02-15 杭州杭氧低温液化设备有限公司 Vacuum heat insulating low-temperature pipe joint
CN104067044A (en) * 2011-11-28 2014-09-24 巴斯夫欧洲公司 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

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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