CN205781462U - A kind of double-wall pipe - Google Patents
A kind of double-wall pipe Download PDFInfo
- Publication number
- CN205781462U CN205781462U CN201620429482.7U CN201620429482U CN205781462U CN 205781462 U CN205781462 U CN 205781462U CN 201620429482 U CN201620429482 U CN 201620429482U CN 205781462 U CN205781462 U CN 205781462U
- Authority
- CN
- China
- Prior art keywords
- double
- inner tube
- wall pipe
- tube
- outer tube
- 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 - Fee Related
Links
Landscapes
- Thermal Insulation (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a kind of double-wall pipe, including inner tube and to be wrapped in outer tube described in the outer tube outside inner tube away from the side of inner tube be concavo-convex connected zigzag, and the top of this zigzag inner tube is plane, described inner tube is respectively arranged at two ends with for realizing the flange connected between double-wall pipe；The utility model has the advantage of: intensity is high, resistance is good, extends service life；The constant temperature that heat-insulation layer can keep certain is set in pipeline, when temperature is relatively low, not by ectocine；And using MPVE multiple tube, this material environment friendly performance is good, and not contaminated soil does not distribute toxic and harmful.
Description
Technical field
This utility model belongs to tubing and manufactures field, is specifically related to a kind of double-wall pipe.
Background technology
The double-wall corrugated pipe that this area is common, is a kind of a kind of tubing with circulus outer wall and smooth internal walls, and this double-wall corrugated pipe outer wall is owing to being circulus, when stress, often concentrates summit, and pressure becomes big, easily weares and teares；And conventional HDPE material pollutes environment, and the feature of environmental protection is the best.
Utility model content
Utility model purpose: the deficiency existed for prior art, this utility model provides the double-wall pipe that a kind of intensity is high, resistance is good and environmental-protecting performance is high.
Technical scheme: a kind of double-wall pipe, including inner tube and to be wrapped in outer tube described in the outer tube outside inner tube away from the side of inner tube be concavo-convex connected zigzag, and the top of this zigzag inner tube is plane, described inner tube is respectively arranged at two ends with for realizing the flange connected between double-wall pipe.
Specifically, it is provided with heat-insulation layer between described external tube layer and interior tube layer, for heat-insulation and heat-preservation.
More specifically, described heat-insulation layer is asbestos.
Specifically, when multiple double-wall pipes connect, between two adjacent flanges, it is provided with pad, and two flanges are bolted.
Specifically, described outer tube is MPVE multiple tube, for macromolecule environment-friendly materials.
Beneficial effect: compared with prior art, the utility model has the advantage of: first, the outer tube of this double-wall pipe uses concavo-convex connected zigzag, and the top of this zigzag inner tube is plane, add lifting surface area, make the intensity height of this double-wall pipe, resistance good, extend service life；Secondly, it is provided with heat-insulation layer in this double-wall pipe, certain constant temperature can be kept in pipeline, when temperature is relatively low, not by ectocine；Finally, this double-wall pipe uses MPVE multiple tube, and this material environment friendly performance is good, and not contaminated soil does not distribute toxic and harmful.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with this utility model.
As it is shown in figure 1, a kind of double-wall pipe, including outer tube 2, inner tube 1, heat-insulation layer 3 and flange 4, inner tube 1 is wrapped between inside, and outer tube 2 and inner tube 1 and is provided with certain gap by outer tube 2, and this gap location is provided with heat-insulation layer 3, and this heat-insulation layer 3 is asbestos；Wherein, inner tube 1 is smooth pipeline, and outer tube 2 is concavo-convex connected zigzag away from the side of inner tube 1, and this jagged top is plane, i.e. outer tube 2 is made up of several the trapezoidal of setting of turning upside down away from the side of inner tube 1；Inner tube 1 is respectively arranged at two ends with flange 4；When multiple double-wall pipes are longitudinally connected, the flange 4 in two inner tube 1 is bonded to each other, and places pad between two flanges 4, is bolted by two flanges 4, just completes the connection between two double-wall pipes.
Flange 4 connection has intensity height, noise is low, fire protecting performance good, service life is long, and its flexible connected and anti-seismic performance are good.
Claims (5)
1. a double-wall pipe, it is characterized in that: include inner tube (1) and to be wrapped in outer tube (2) the described outer tube (2) in inner tube (1) outside be concavo-convex connected zigzag away from the side of inner tube (1), and this jagged top is plane, described inner tube (1) is respectively arranged at two ends with for realizing the flange (4) connected between double-wall pipe.
A kind of double-wall pipe the most according to claim 1, it is characterised in that: it is provided with heat-insulation layer (3) between described external tube layer (2) and interior tube layer (1).
A kind of double-wall pipe the most according to claim 2, it is characterised in that: described heat-insulation layer is asbestos.
A kind of double-wall pipe the most according to claim 1, it is characterised in that: when multiple double-wall pipes connect, between two adjacent flanges (4), it is provided with pad, and two flanges (4) are bolted.
A kind of double-wall pipe the most according to claim 1, it is characterised in that: described outer tube (2) is MPVE multiple tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620429482.7U CN205781462U (en) | 2016-05-12 | 2016-05-12 | A kind of double-wall pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620429482.7U CN205781462U (en) | 2016-05-12 | 2016-05-12 | A kind of double-wall pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781462U true CN205781462U (en) | 2016-12-07 |
Family
ID=57409910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620429482.7U Expired - Fee Related CN205781462U (en) | 2016-05-12 | 2016-05-12 | A kind of double-wall pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781462U (en) |
-
2016
- 2016-05-12 CN CN201620429482.7U patent/CN205781462U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202561285U (en) | Improved structure of steel strip reinforced polyethylene spiral corrugated pipe | |
| CN205781462U (en) | A kind of double-wall pipe | |
| CN204785269U (en) | Vacuum insulation bellows | |
| CN205190996U (en) | Double -walled ripple plastic steel pipe | |
| CN202228855U (en) | Evacuating type thermal insulation casing of steam pipeline | |
| CN204437521U (en) | Bellows | |
| CN206398361U (en) | A kind of high leakproofness prefabricated pipeline | |
| CN206191119U (en) | Petroleum pipeline coupling of leak protection oil | |
| CN104896216A (en) | High-density polyethylene corrugated outer protection pipe and double pipe heat insulation pipeline | |
| CN104896262A (en) | High-density polyethylene outer protection pipe double-pipe insulation pipe | |
| CN106224682A (en) | A kind of air-cooled ducted air conditioner is with novel blind plug | |
| CN207421550U (en) | Outer octagon inner circle double-wall corrugated pipe | |
| CN205278618U (en) | Connecting device for corrugated pipes | |
| CN206072558U (en) | A kind of CM pipes | |
| CN106641515A (en) | Petroleum pipeline coupling capable of preventing oil leakage | |
| CN204611128U (en) | Novel heat insulation pipe joint | |
| CN203880247U (en) | Gas pipe good in anti-leakage performance | |
| CN204592693U (en) | Heating tape high-pressure composite pipe | |
| CN204916843U (en) | Construction pipe storage rack | |
| CN105782612A (en) | Pipeline connecting device | |
| CN204437515U (en) | A kind of reinforced steel-band double-wall corrugated pipeline | |
| CN209818947U (en) | High-efficiency heat-insulation vacuum hose | |
| CN207486311U (en) | A kind of quick construction metal corrugated pipe expansion joint | |
| CN202937915U (en) | Spiral corrugated pipe connection structure | |
| CN202834495U (en) | Leakage-proof type rectifying tower section used for phosgene product production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20180512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |