CN2546719Y - Steam direct-buried thermal insulation pipe with vacuum tube - Google Patents
Steam direct-buried thermal insulation pipe with vacuum tube Download PDFInfo
- Publication number
- CN2546719Y CN2546719Y CN 02273834 CN02273834U CN2546719Y CN 2546719 Y CN2546719 Y CN 2546719Y CN 02273834 CN02273834 CN 02273834 CN 02273834 U CN02273834 U CN 02273834U CN 2546719 Y CN2546719 Y CN 2546719Y
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- Prior art keywords
- vacuum tube
- pipe
- vacuum
- steel pipe
- thermal
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- Expired - Fee Related
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Abstract
The utility model discloses a steam directly buried thermal insulating pipe of vacuum pipes and relates to heat supplying pipelines. The utility model is composed of a steel pipe, a thermal insulating layer, and connecting attachments. The steel pipe is wrapped by vacuum pipes; an air layer exists between the steel pipe and the vacuum pipes; an ultra fine glass thermal insulating layer is arranged outside the vacuum pipes; an anti erosion layer that protects the steel pipe is arranged outside the thermal insulating layer. A pipe supporting seat and a friction plate are arranged inside the vacuum pipe where one vacuum pipe is connected with another; insulating pipes are arranged outside the vacuum pipes; short vacuum pipes are arranged outside the insulating pipe; an external supporting seat is arranged between the short vacuum pipes and a protecting layer. Thermal shrouding layers are arranged on the interior walls of the vacuum pipes and the short vacuum pipes. Compared with prior thermal insulating structures, a thermal shrouding layer vacuum pipe thermal insulating structure has 10 to 15 times lower complex thermal conductivity coefficient with the thickness of the thermal insulating layer 1 to 3 times thinner, thus reducing product cost and improving energy efficiency. Since the air layer is totally enclosed, the utility model can run normally in case of working steel pipe leakage. In addition, the utility model has safe and reliable operation, Thus eliminating the pipe vibration and damages to the thermal insulating structure caused by the <cold bridge> phenomenon and <water hammer> of steam pipelines.
Description
(1) technical field:
The utility model relates to heat supply pipeline, is meant the design and fabrication technology of steamy thermal insulated direct-buried pipe especially.
(2) background technique:
At present the steamy thermal insulated direct-buried pipe of research and development is to be the insulating structure of thermal insulation layer with conventional thermal insulating material, and it is more serious that this product has " cold bridge " phenomenon, cost height, shortcoming such as economic benefit and energy-saving effect are not good, and working life is long.
(3) summary of the invention:
The utility model addresses the above problem emphatically, makes its good energy-conserving effect, long service life.
The technical solution of the utility model is: be made of steel pipe, thermal insulation layer and coupling, be surrounded by vacuum tube outside steel pipe, between steel pipe and the vacuum tube air layer is arranged, vacuum tube is outward the superfine glass thermal insulation layer, and thermal insulation layer is outward protection steel pipe and anticorrosive coat.In vacuum tube and vacuum tube joint vacuum tube is piping support seat and friction plate, and vacuum tube is an insulation tube outward, and being outside insulation tube has the external support seat between short vacuum tube and the protective layer by short vacuum tube.On vacuum tube and short vacuum tube inwall, the screening thermosphere is arranged.
The beneficial effects of the utility model are: hide thermosphere vacuum tube insulating structure owing to be provided with, thermal conductivity can be reduced to 0.006w/mk, and is littler 10～15 times than the comprehensive thermal conductivity of existing insulating structure, and insulation layer thickness reduces 1～3 times, greatly reduce product cost, improved energy-saving benefit.Since with vacuum tube and withstand voltage insulation tube totally-enclosed air layer, also can proper functioning under the situation that working steel tube is revealed, greatly improved steam line property safe and reliable to operation.Owing to adopted withstand voltage insulation tube and vacuum short tube, fundamentally eradicated " cold bridge " phenomenon and caused pipe vibration and to the destruction of insulating structure because of steam line " water attack ".
(4) description of drawings:
Figure is the utility model structural representation.
(5) embodiment:
Steamy thermal insulated direct-buried pipe structure with vacuum tube as shown in the figure; constitute by steel pipe, thermal insulation layer and coupling, outside steel pipe 1, be surrounded by vacuum tube 3, air layer 2 is arranged between steel pipe and the vacuum tube; vacuum tube is outward a superfine glass thermal insulation layer 9, and thermal insulation layer is outward protection steel pipe 10 and anticorrosive coat 11.In vacuum tube and vacuum tube joint vacuum tube, be piping support seat 7 and friction plate 4.Vacuum tube is an insulation tube 5 outward, and being outside insulation tube has external support seat 8 between short vacuum tube and the protective layer by short vacuum tube 6, on vacuum tube and short vacuum tube inwall the screening thermosphere is arranged.Air layer thickness is 5～15mm; vacuum tube thickness is 8～30mm; degree of vacuum is 0.1～200Pa in the vacuum tube; the screening thermosphere makes with the lamination coating or the dusty material of metal aluminum foil paper and glass fibre cloth in the vacuum tube; total number of plies is 5～20 layers, leaves hot expansion joint between the vacuum tube, width 3～7mm; vacuum tube length is 100～400mm, and short vacuum tube can be arranged on any one section between steel pipe and the protection steel pipe.
Claims (3)
1, the steamy thermal insulated direct-buried pipe that has vacuum tube is made of steel pipe, thermal insulation layer and coupling, it is characterized in that: be surrounded by vacuum tube [3] outside steel pipe [1], air layer [2] is arranged between steel pipe and the vacuum tube, the screening thermosphere is arranged on the vacuum tube inwall.
2, the steamy thermal insulated direct-buried pipe with vacuum tube according to claim 1; it is characterized in that: in vacuum tube and vacuum tube joint vacuum tube, be piping support seat [7] and friction plate [4]; vacuum tube is outward an insulation tube [5]; outside insulation tube, be short vacuum tube [6]; between short vacuum tube and the protective layer external support seat [8] is arranged, on short vacuum tube inwall, the screening thermosphere is arranged.
3, the steamy thermal insulated direct-buried pipe with vacuum tube according to claim 1 is characterized in that: vacuum tube is superfine glass thermal insulation layer [9] outward, and thermal insulation layer is outward protection steel pipe [10] and anticorrosive coat [11].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273834 CN2546719Y (en) | 2002-06-21 | 2002-06-21 | Steam direct-buried thermal insulation pipe with vacuum tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273834 CN2546719Y (en) | 2002-06-21 | 2002-06-21 | Steam direct-buried thermal insulation pipe with vacuum tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2546719Y true CN2546719Y (en) | 2003-04-23 |
Family
ID=33738217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02273834 Expired - Fee Related CN2546719Y (en) | 2002-06-21 | 2002-06-21 | Steam direct-buried thermal insulation pipe with vacuum tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2546719Y (en) |
-
2002
- 2002-06-21 CN CN 02273834 patent/CN2546719Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |