CN202040486U - Multilayer single vacuum compound insulated tube - Google Patents

Multilayer single vacuum compound insulated tube Download PDF

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Publication number
CN202040486U
CN202040486U CN2011200153598U CN201120015359U CN202040486U CN 202040486 U CN202040486 U CN 202040486U CN 2011200153598 U CN2011200153598 U CN 2011200153598U CN 201120015359 U CN201120015359 U CN 201120015359U CN 202040486 U CN202040486 U CN 202040486U
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CN
China
Prior art keywords
tube
insulating
multilayer
composite heat
vacuum composite
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.)
Expired - Lifetime
Application number
CN2011200153598U
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Chinese (zh)
Inventor
白明军
吴平
张琰
周生宣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI NOBLE VACUUM TECHNOLOGY Co Ltd
Original Assignee
HUBEI NOBLE VACUUM TECHNOLOGY Co Ltd
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Publication date
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Priority to CN2011200153598U priority Critical patent/CN202040486U/en
Application granted granted Critical
Publication of CN202040486U publication Critical patent/CN202040486U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A multilayer single vacuum compound insulated tube comprises an inner tube and an outer tube, and is characterized in that at least one reflective layer (3) is arranged between the inner tube (1) and the outer tube (2), the reflective layer divides the inner tube and the outer tube along the radial direction into two-or-more-layer spaces communicating with each other and being vacuumized. The inner tube, the outer tube and the reflective layer are made of stainless steels, and radiation protection layers (4) are applied on the external surfaces of the inner tube and the reflective layer. The radiation protection layers are made of one or more layers of radiation protection copper foil and aluminum foil. The multilayer single vacuum compound insulated tube is simple structure, small in size, and excellent in thermal insulation effects and high-temperature resistance, and is especially suitable for thermal transmission in the field of solar power and heat generation and petroleum chemical industry.

Description

The single vacuum composite heat-insulating of multilayer
Technical field
The utility model relates to the high temperature media delivery pipe, relates in particular to a kind of single vacuum composite heat-insulating of multilayer that is used to carry high-temperature steam, oil or fuse salt, is 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 petrochemical industry, 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 and the heat conveyance performance more than 200 ℃, so just need be at the outer surface wrapped multiple thermal insulating material of common pipe, cause heat transfer tube thicker, install complicated, it is big to take up room, not environmental protection, and the heat transport loss is serious.
Chinese patent CN00815996 discloses a kind of name and has been called " insulating tubular complex of pipeline " patent of invention, though this patent discloses a kind of structure that one deck covering is set between inner and outer pipes, but because this covering adopts formations such as soft membrane material, its resistance to high temperature is poor, can only work below 150 ℃, can not be applied to the heat transport more than 200 ℃.
The model utility content
The purpose of this utility model is in order to solve the deficiency that the above-mentioned background technology exists, a kind of high insulating effect to be provided, and the insulation life-span is long, resistant to elevated temperatures multilayer list vacuum composite heat-insulating.
For achieving the above object, the utility model adopts following technological scheme: the single vacuum composite heat-insulating of multilayer, pipe and outer tube in comprising, it is characterized in that, be provided with one deck reflecting layer 3 at least between pipe 1 and the outer tube 2 in described, the reflecting layer will radially be divided into inside and outside two-layer or multilayer space between interior pipe and the outer tube, be connected between each space and vacuumize, pipe in described, outer tube and reflecting layer are stainless steel material, be equipped with radiation protective layer 4 at inner tube outer surface and reflecting layer outer surface, this radiation protective layer is made of Copper Foil or the aluminum foil material that one or more layers has shielding property.
Specifically, in the reflecting layer 3 and radiation protective layer 4 surfaces be provided with the through hole that is communicated with interior or exterior space.This through hole makes each space form same degree of vacuum inside and outside each spatial communication.
Preferably, be filled with vacuum glass ball or fiber in the space between reflecting layer 3 and interior pipe 1, to strengthen the radiation proof heat-shielding performance.
Preferably, an end of the single vacuum composite heat-insulating of described multilayer is outer step surface, and the other end is interior step surface, and the outer step surface of adjacent two root multi-layer list vacuum composite heat-insulatings cooperates with interior step surface.
Furtherly, described outer step surface is provided with one section bellows 5, in order to expand with heat and contract with cold effect and reduce the joint thermal loss of adjusting.
Preferably, be provided with between described outer tube 2 and the reflecting layer 3 and set upright part 7.
Preferably, also be provided with one section bellows 5 on the described outer tube, in order to the adjusting effect of expanding with heat and contract with cold.
Preferably, be respectively equipped with flange plate 6, connect with bolt between the flange plate 6 of adjacent two root multi-layer list vacuum composite heat-insulating joints, and seal with Sealing at every root multi-layer list vacuum composite heat-insulating two ends.
Preferably, be respectively equipped with connecting bolt 8 and attaching nut 9, cooperate between the connecting bolt 8 of adjacent two root multi-layer list vacuum composite heat-insulating joints and the attaching nut 9, and the cooperation place be provided with Sealing at every root multi-layer list vacuum composite heat-insulating two ends.
Preferably, tube outer surface is provided with protective layer outside, with the protection outer tube, strengthens effect of heat insulation.
Because the utility model adopts the single vacuum composite heat-insulating structure of multilayer, and one deck Stainless Steel Reflector of Core at least is set in the same vacuum space between inner and outer pipes, the reflecting layer outer surface is provided with radiation protective layer, because Stainless Steel Reflector of Core is divided into a plurality of spaces with degree of vacuum with same vacuum space, both played reflecting action, avoided the transmission of heat of radiation protective layer again, therefore, the utlity model has good heat insulation effect and high temperature resistant transmission, its connection part also can effectively prevent heat leak, increase substantially the heat-shielding performance of single vacuum composite heat-insulating of multilayer itself and joint, prolonged the insulation life-span.
The utlity model has simple in structurely, volume is little, high insulating effect, and the advantage that resistance to high temperature is strong is specially adapted to the heat transport of solar electrical energy generation, heating and petrochemical industry.
Below by drawings and Examples the utility model is described in further details, so that technician's of the same trade understanding.
Description of drawings
Fig. 1 is the utility model first segment heat insulating tube structural representation;
Fig. 2 is the utility model final section heat insulating tube structural representation;
Fig. 3 is first segment and final section heat insulating tube flange splicing schematic representation;
Fig. 4 is a segmentum intercalaris heat insulating tube structural representation in the utility model;
Fig. 5 is adjacent centre two joint heat insulating tube flange splicing schematic representation.
The adjacent two joint heat insulating tube screw thread splicing schematic representation of Fig. 6.
In the drawings, pipe in the 1-, the 2-outer tube, the 3-reflecting layer, the 4-radiation protective layer, the 5-bellows, the 6-flange plate, 7-sets upright part, 8-connecting bolt, 9-attaching nut.
Embodiment
The utility model is divided into first segment heat insulating tube, middle segmentum intercalaris heat insulating tube and final section heat insulating tube.Wherein, the first segment heat insulating tube is to be positioned at the top joint of whole transfer conduit, and the final section heat insulating tube is to be positioned at the most last joint of whole transfer conduit, and middle segmentum intercalaris heat insulating tube is to be positioned at the middle any joint of whole transfer conduit.In a transfer conduit, adopt first segment heat insulating tube, final section heat insulating tube and some middle segmentum intercalaris heat insulating tubes in the utility model to be spliced.
Embodiment 1: referring to Fig. 1, present embodiment is the first segment heat insulating tube, pipe 1 and outer tube 2 in comprising, be provided with one deck reflecting layer 3 between pipe 1 and the outer tube 2 in described, this reflecting layer will radially be divided into inside and outside two sheaf spaces between interior pipe and the outer tube, described interior pipe, outer tube and reflecting layer are stainless steel material, are provided with one section bellows 5 on outer tube, between outer tube 2 and reflecting layer 3, be provided with and set upright part 7, be used for 3 location, reflecting layer.Be equipped with radiation protective layer 4 at inner tube outer surface and reflecting layer outer surface, this radiation protective layer is made of Copper Foil or the aluminum foil material that one or more layers has shielding property.In the reflecting layer 3 and radiation protective layer 4 surfaces be provided with the through hole that is communicated with interior or exterior space, this through hole makes each space form same degree of vacuum inside and outside each spatial communication.
One end of described first segment heat insulating tube is interior step surface, and two ends are provided with flange plate 6.
Embodiment 2: referring to Fig. 2, present embodiment is the final section heat insulating tube.Present embodiment is substantially the same manner as Example 1, and difference is that an end of final section heat insulating tube is outer step surface, and this outer step surface can match with the interior step surface of first segment heat insulating tube one end, and its phase distribution structure is seen Fig. 3.Final section heat insulating tube two ends are provided with flange plate 6, and fitting surface seals with Sealing between final section heat insulating tube and the first segment heat insulating tube flange plate 6, and connects with bolt.
In addition, on the outer step surface of described final section heat insulating tube one end, be provided with one section bellows 5.
Embodiment 3: referring to Fig. 3, present embodiment is middle segmentum intercalaris heat insulating tube.Present embodiment is substantially the same manner as Example 1, and difference is that middle segmentum intercalaris heat insulating tube one end is outer step surface, and the other end is interior step surface, and the outer step surface of adjacent two middle segmentum intercalaris heat insulating tubes cooperates with interior step surface.Middle segmentum intercalaris heat insulating tube two ends are provided with flange plate 6, and fitting surface seals with Sealing between adjacent two middle segmentum intercalaris heat insulating tube flange plate 6, and connects with bolt.
Outside every middle segmentum intercalaris heat insulating tube, be provided with one section bellows 5 on the step surface.
Referring to Fig. 6, in above-mentioned three embodiments, also can be respectively equipped with connecting bolt 8 and attaching nut 9, cooperate between the connecting bolt 8 of adjacent two root multi-layer list vacuum composite heat-insulating joints and the attaching nut 9, and the cooperation place be provided with Sealing at every root multi-layer list vacuum composite heat-insulating two ends.
Can outside every joint heat insulating tube, be provided with protective layer by tube outer surface in addition,, strengthen effect of heat insulation with the protection outer tube.
The utility model adopts bellows not only can regulate the pipeline elongation that raises and cause because of pipe temperature, can also prolong adjacent channel joint heat transfer path, has reduced the joint thermal loss.
The utility model not only itself has good heat insulation and preservation effect, and connection part also has good heat-shielding performance between the adjacent channel.Be suitable for the heat transport of solar electrical energy generation, heating and chemical field.

Claims (9)

1. the single vacuum composite heat-insulating of multilayer, pipe and outer tube in comprising, it is characterized in that, be provided with one deck reflecting layer (3) at least between pipe (1) and the outer tube (2) in described, the reflecting layer will radially be divided into inside and outside two-layer or multilayer space between interior pipe and the outer tube, be connected between each space and vacuumize, pipe, outer tube and reflecting layer are stainless steel material in described, be equipped with radiation protective layer (4) at inner tube outer surface and reflecting layer outer surface, this radiation protective layer is made of Copper Foil or the aluminum foil material that one or more layers has shielding property.
2. the single vacuum composite heat-insulating of multilayer according to claim 1 is characterized in that (3) and radiation protective layer (4) surface is provided with the through hole that is communicated with interior or exterior space in the reflecting layer.
3. the single vacuum composite heat-insulating of multilayer according to claim 1 is characterized in that, is filled with vacuum glass ball or fiber in the space between reflecting layer (3) and interior pipe (1).
4. the single vacuum composite heat-insulating of multilayer according to claim 1, it is characterized in that, one end of the single vacuum composite heat-insulating of described multilayer is outer step surface, and the other end is interior step surface, and the outer step surface of adjacent two root multi-layer list vacuum composite heat-insulatings cooperates with interior step surface.
5. the single vacuum composite heat-insulating of multilayer according to claim 4 is characterized in that described outer step surface is provided with one section bellows (5).
6. the single vacuum composite heat-insulating of multilayer according to claim 1 is characterized in that, is provided with between described outer tube (2) and reflecting layer (3) and sets upright part (7).
7. according to the single vacuum composite heat-insulating of the described multilayer of an arbitrary claim in the claim 1 to 6, it is characterized in that, be respectively equipped with flange plate (6) at every root multi-layer list vacuum composite heat-insulating two ends, connect with bolt between the flange plate (6) of adjacent two root multi-layer list vacuum composite heat-insulating joints, and seal with Sealing.
8. according to the single vacuum composite heat-insulating of the described multilayer of an arbitrary claim in the claim 1 to 6, it is characterized in that, be respectively equipped with bolt (8) and nut (9) at every root multi-layer list vacuum composite heat-insulating two ends, cooperate between the bolt (8) of adjacent two root multi-layer list vacuum composite heat-insulating joints and the nut (9), and the cooperation place is provided with Sealing.
9. according to the single vacuum composite heat-insulating of the described multilayer of an arbitrary claim in the claim 1 to 6, it is characterized in that tube outer surface is provided with protective layer outside.
CN2011200153598U 2011-01-19 2011-01-19 Multilayer single vacuum compound insulated tube Expired - Lifetime CN202040486U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200153598U CN202040486U (en) 2011-01-19 2011-01-19 Multilayer single vacuum compound insulated tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200153598U CN202040486U (en) 2011-01-19 2011-01-19 Multilayer single vacuum compound insulated tube

Publications (1)

Publication Number Publication Date
CN202040486U true CN202040486U (en) 2011-11-16

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CN2011200153598U Expired - Lifetime CN202040486U (en) 2011-01-19 2011-01-19 Multilayer single vacuum compound insulated tube

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102072363A (en) * 2011-01-19 2011-05-25 湖北贵族真空科技股份有限公司 Multi-layer single vacuum compound heat-insulation pipe
CN103133388A (en) * 2011-11-25 2013-06-05 沈阳工业大学 Shield sleeve for shield pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102072363A (en) * 2011-01-19 2011-05-25 湖北贵族真空科技股份有限公司 Multi-layer single vacuum compound heat-insulation pipe
CN102072363B (en) * 2011-01-19 2013-06-19 湖北贵族真空科技股份有限公司 Multi-layer single vacuum compound heat-insulation pipe
CN103133388A (en) * 2011-11-25 2013-06-05 沈阳工业大学 Shield sleeve for shield pump
CN103133388B (en) * 2011-11-25 2016-02-10 沈阳工业大学 Canned motorpump housing

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GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20111116

Effective date of abandoning: 20130619

RGAV Abandon patent right to avoid regrant