CN210687404U - Double-layer tee joint for thermoplastic double-layer composite pipeline - Google Patents
Double-layer tee joint for thermoplastic double-layer composite pipeline Download PDFInfo
- Publication number
- CN210687404U CN210687404U CN201921821441.2U CN201921821441U CN210687404U CN 210687404 U CN210687404 U CN 210687404U CN 201921821441 U CN201921821441 U CN 201921821441U CN 210687404 U CN210687404 U CN 210687404U
- Authority
- CN
- China
- Prior art keywords
- double
- layer
- tee
- inlayer
- tee bend
- 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.)
- Active
Links
- 229920001169 thermoplastic Polymers 0.000 title claims description 18
- 239000004416 thermosoftening plastic Substances 0.000 title claims description 17
- 239000002131 composite material Substances 0.000 title claims description 15
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 12
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000004888 barrier function Effects 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims abstract description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 4
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 4
- 239000005060 rubber Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 50
- 230000001681 protective effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a double-deck tee bend for double-deck compound pipeline of thermoplasticity, locate including inlayer tee bend and cover the outside outer sheath of inlayer tee bend, the inlayer tee bend includes the high density polyethylene material layer, the internal surface on high density polyethylene material layer is equipped with the barrier layer, the barrier layer is used for preventing that the hydrocarbon molecule in the inlayer tee bend from permeating away and dissipation static, the inner wall of outer sheath with have inclosed crack district that link up between the outer wall of inlayer tee bend, outer sheath cover locates the part the three-way outside of inlayer. The utility model discloses a double-deck tee bend has thoroughly solved the gap between the inlayer pipe of tee bend department and outer pipe and should link up the high-speed joint problem with pipeline or other pipe fittings, compact, and the installation is simple.
Description
Technical Field
The utility model relates to a tee bend especially relates to a double-deck tee bend that is used for double-deck compound pipeline of thermoplasticity.
Background
Considering that steel pipelines are easy to rust, the corrosion resistance of the steel pipelines depends on the product quality and construction quality of an outer anticorrosive layer, the environmental temperature, the humidity, the concentration of various chemical substances in soil and other factors, the process pipelines of gas stations in the oil retail industry are approved by authorities in the last decade to select thermoplastic plastic pipelines suitable for conveying oil products. With technical guidelines (trial) for preventing and treating underground water pollution of gas stations issued by the environmental protection department in 2017, scientificity and normativity for preventing and treating underground water pollution of gas stations are enhanced, and the gas stations adopting anti-seepage measures gradually select and apply thermoplastic double-layer composite pipelines. The anti-seepage oil pipe has the advantages that the anti-seepage oil pipe has a secondary anti-seepage function, has one layer of protection in the anti-seepage aspect compared with a single-wall pipe, is convenient for realizing manual detection and online monitoring, and can find seepage in time in the first time so that the leaked oil does not enter the environment.
The double-layer pipeline consists of an inner layer main pipeline and an outer layer protective sleeve, wherein the inner layer main pipeline is used for conveying or storing liquid fuel and oil gas of the liquid fuel, the outer layer protective sleeve is used for protecting the double-layer pipeline, the double-layer pipeline must be provided with a closed protective space, the protective space is communicated, and an online leakage monitoring system can be arranged to realize leakage monitoring of any position of the protective space of the thermoplastic double-layer process pipeline.
For a thermoplastic double-layer pipeline system, in order to realize that the clearance between the inner layer and the outer layer of the whole pipeline system is 360 degrees and fully covered, the specification requirement is met, and the technical difficulty in the aspect of connecting joint pipe fittings is always high. The common joint adopts a tee joint, and when the common double-layer tee joint is installed, the common single-layer tee joint is installed firstly, after various inspections and pressure tests are completed, a large-size tee joint with the volume capable of containing the inner-layer tee joint is installed outside the three-layer tee joint, so that the method has the advantages of more connecting points, large installation space, time and labor consumption in assembly and inspection, more links and high risk probability; and because the size of ordinary double-deck tee bend is big, cause many installation restrictions.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a double-deck tee bend that is used for the double-deck compound pipeline of thermoplasticity, the utility model discloses a gap between the inlayer pipe of tee bend department and outer pipe has been solved to double-deck tee bend and has should link up the high-speed joint problem with pipeline or other pipe fittings, compact, the installation is simple.
The utility model discloses a double-deck tee bend for double-deck compound pipeline of thermoplasticity, locate including inlayer tee bend and cover the outside outer sheath of inlayer tee bend, the inlayer tee bend includes the high density polyethylene material layer, the internal surface on high density polyethylene material layer is equipped with the barrier layer, the barrier layer is used for preventing that the hydrocarbon molecule in the inlayer tee bend from permeating away and dissipation static, the inner wall of outer sheath with have inclosed crack district that link up between the outer wall of inlayer tee bend, outer sheath cover locates the part the three-way outside of inlayer.
Further, the thickness of the high-density polyethylene material layer is 6.0-6.4mm, and the thickness of the barrier layer is 0.5-1.0 mm.
Furthermore, the corner of the outer wall of the inner layer tee joint is arc-shaped.
Further, the outer sheath comprises a transverse sleeve and a vertical sleeve which are symmetrical, and the two transverse sleeves and the vertical sleeve are integrally formed.
Furthermore, the two transverse sleeves and the vertical sleeve are welded in pairs.
Furthermore, grooves are arranged at the ends of the three branches of the inner-layer tee joint.
Further, an oil-resistant rubber O-shaped ring is arranged in the groove.
Furthermore, the middle part of the outer sheath is provided with a bulge, and the bulge protrudes towards one side far away from the inner tee.
Further, the edge of the protruding part is V-shaped.
Furthermore, the double-layer tee joint of the thermoplastic double-layer composite pipeline is T-shaped.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
the utility model discloses a double-deck tee bend includes that inlayer tee bend and cover locate the outside outer sheath of inlayer tee bend, and outer sheath cover locate the part inlayer tee bend outside, when it and double-deck pipeline or other double-deck pipe fitting erection joint, at the outer sheath of each branch department and the restrictive tube connection of other pipe fittings, outstanding inlayer tee bend is connected with the person in charge of other pipe fittings, the utility model discloses compact, the installation is convenient fast, has solved the gap between inlayer pipe and the outer pipe of tee bend department and has had a perfect understanding with the quick connection problem of pipeline or other pipe fittings.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic perspective view of a double-layer tee joint for a thermoplastic double-layer composite pipeline according to the present invention;
FIG. 2 is a schematic cross-sectional view of a double tee of the present invention for a thermoplastic double-layer composite pipe;
description of reference numerals:
1-inner layer tee joint; 2-outer sheath; 3-a crack zone; 10-a trench; 20-raised portion.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Examples
Referring to the drawings, the utility model discloses a double-deck tee bend for double-deck compound pipeline of thermoplasticity, it is the T font, locate the outer sheath 2 of the outside T font of inner layer tee bend 1 including the inlayer tee bend 1 of T font and cover, and the outside of partial inlayer tee bend 1 is located to outer sheath 2 cover, and the end of the three branch of inlayer tee bend 1 exposes in the outside. And a closed through crack area 3 is arranged between the inner wall of the outer sheath 2 and the outer wall of the inner tee 1 to ensure that the inner and outer layer gaps are completely covered and communicated in 360 degrees. When the double-layer pipe or other double-layer pipe fittings are installed and connected, the outer-layer sheaths 2 at the branches are connected with other sheath pipes, and the protruding inner-layer tee joints 1 are connected with other main pipes.
The high density polyethylene material layer and the barrier layer of the tee bend of inlayer are moulded plastics through the secondary and are realized, and the internal surface of the tip of the three branch of inlayer tee bend 1 is equipped with slot 10, is equipped with resistant oily rubber O type circle in order to realize static seal in the slot 10, ensures the structural integrity of trunk pipe. The corner of the outer wall of the inner layer tee joint 1 is arc-shaped.
The outer sheath 2 comprises a horizontal sleeve and a vertical sleeve which are symmetrical, and the two horizontal sleeves and the vertical sleeve are integrally formed. The two transverse sleeves are bilaterally symmetrical and are fused by mirror image butt welding. And one end of the vertical sleeve is fused with the combination of the transverse sleeves into a whole through mirror image butt welding. The middle part of the outer sheath 2 is provided with a bulge 20, the bulge 20 protrudes towards one side far away from the inner tee 1, and the edge of the bulge 20 is V-shaped. The utility model discloses in, the thickness on high density polyethylene material layer is 6.0-6.4mm, the thickness of barrier layer is 0.5-1.0 mm.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a double-deck tee bend that is used for double-deck compound pipeline of thermoplasticity which characterized in that: locate including inlayer tee bend and cover the outside outer sheath of inlayer tee bend, the inlayer tee bend includes the high density polyethylene material layer, the internal surface on high density polyethylene material layer is equipped with the barrier layer, the barrier layer is used for preventing the hydrocarbon molecule in the inlayer tee bend from permeating away and dissipation static, the inner wall of outer sheath with have inclosed crack district that link up between the outer wall of inlayer tee bend, outer sheath cover is located the part the outside of inlayer tee bend.
2. The double-layer tee for thermoplastic double-layer composite pipes according to claim 1, wherein: the corners of the outer wall of the inner layer tee joint are arc-shaped.
3. The double-layer tee for thermoplastic double-layer composite pipes according to claim 1, wherein: the outer sheath comprises a transverse sleeve and a vertical sleeve which are symmetrical, and the two transverse sleeves and the vertical sleeve are integrally formed.
4. The double-layer tee for thermoplastic double-layer composite pipes according to claim 3, wherein: the two transverse sleeves and the vertical sleeve are welded in pairs.
5. The double-layer tee for thermoplastic double-layer composite pipes according to claim 1, wherein: grooves are arranged at the end parts of the three branches of the inner layer tee joint.
6. The double-layer tee for thermoplastic double-layer composite pipes according to claim 5, wherein: and an oil-resistant rubber O-shaped ring is arranged in the groove.
7. The double-layer tee for thermoplastic double-layer composite pipes according to claim 1, wherein: the middle part of the outer sheath is provided with a bulge, and the bulge protrudes towards one side far away from the inner tee joint.
8. The double-layer tee for thermoplastic double-layer composite pipes according to claim 7, wherein: the edge of the bulge is V-shaped.
9. The double-layer tee for thermoplastic double-layer composite pipes according to claim 1, wherein: the double-layer tee joint of the thermoplastic double-layer composite pipeline is T-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921821441.2U CN210687404U (en) | 2019-10-28 | 2019-10-28 | Double-layer tee joint for thermoplastic double-layer composite pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921821441.2U CN210687404U (en) | 2019-10-28 | 2019-10-28 | Double-layer tee joint for thermoplastic double-layer composite pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210687404U true CN210687404U (en) | 2020-06-05 |
Family
ID=70887450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921821441.2U Active CN210687404U (en) | 2019-10-28 | 2019-10-28 | Double-layer tee joint for thermoplastic double-layer composite pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210687404U (en) |
-
2019
- 2019-10-28 CN CN201921821441.2U patent/CN210687404U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI93390B (en) | Double closed fluid transfer system | |
| USRE37114E1 (en) | Secondary containment flexible underground piping system | |
| US20130160886A1 (en) | Pipe system with annulus utilization and monitoring | |
| US7942422B2 (en) | Multiwall pipe lip seal joint | |
| US7069956B1 (en) | Marina piping | |
| CN210687404U (en) | Double-layer tee joint for thermoplastic double-layer composite pipeline | |
| CN110932203B (en) | Continuous fiber prepreg tape reinforced cable sheath pipe | |
| CN112856229A (en) | Gas is jacket pipe and gas system for pipeline | |
| CN110307442A (en) | Haff festival auxiliary anti-off device | |
| EP2096347B1 (en) | Method for joining together steel pipes for conveying fluids under pressure | |
| RU188306U1 (en) | Repair sleeve for pipes with internal anti-corrosion coating | |
| CN103292115A (en) | Seal-partition direct burial pipe fitting and direct burial pipe with direct burial pipe fittings | |
| CN210510693U (en) | RTP pipeline joint design | |
| CN112503275A (en) | Construction method of composite pipe conveying pipeline | |
| KR101352874B1 (en) | Pipe for detecting water leakage attached housing of clamp | |
| GB2349927A (en) | Electrofusion couplings with inner and outer fittings | |
| CN215674011U (en) | Waterproof wall-penetrating heat-insulation pipe | |
| Roche | An experience in offshore pipeline coatings | |
| CN215950790U (en) | Protective structure of natural gas transportation pipeline link | |
| CN213361372U (en) | Steel bushing steel steam direct-buried jacket sleeve with long service life | |
| US20240117945A1 (en) | Leak containment system with integrated leak detection | |
| Roche | External corrosion of pipelines: What risk? | |
| CN215488304U (en) | 3PE steel-plastic adapter with filling gasket | |
| CN211010203U (en) | Anticorrosive protective structure of buried pipeline | |
| CN215862092U (en) | Pipe sealing element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |