CN204901098U - Plastic compound pipe of PPR - Google Patents
Plastic compound pipe of PPR Download PDFInfo
- Publication number
- CN204901098U CN204901098U CN201520483766.XU CN201520483766U CN204901098U CN 204901098 U CN204901098 U CN 204901098U CN 201520483766 U CN201520483766 U CN 201520483766U CN 204901098 U CN204901098 U CN 204901098U
- Authority
- CN
- China
- Prior art keywords
- thimble
- ppr
- thickness
- intermediate plate
- draw
- 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
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model discloses a plastic compound pipe of PPR, including the body, be equipped with PPR skin, PE -RT inlayer and bond line on the body, the bond line is located between PPR skin and the PE -RT inlayer, the cover is equipped with the thimble on the outer wall of body, and the internal diameter of thimble is greater than the external diameter 3 -5mm of body, and the thickness of thimble is less than 2mm, and the arc of thimble is equipped with draw -in groove and clamping piece on the surface, and the one end of clamping piece articulates on the thimble, the other end of clamping piece can with the draw -in groove joint, the thickness on the outstanding thimble arc surface of clamping piece is less than 1mm. The utility model discloses compound PE -RT inlayer and PPR skin, having compensatied the defect that there is the black brittleness in the PPR skin, when using, the difficult emergence of body is leaked. Be equipped with the thimble on the body, but the clamping piece joint can arrange before thimble and the clamping piece sticky tape with fixed adhesive tape in, then rotate the thimble on the thimble, help the sticky tape to pass constrictive space.
Description
Technical field
The utility model belongs to the technical field of pipe, pipe joint or pipe fitting, particularly relates to a kind of composite pipe of atactic copolymerized polypropene.
Background technique
PPR (polypropylenerandom), make again atactic copolymerized polypropene (PPR) its toughness of products good, intensity is high, processibility is excellent, under higher temperature, creep-resistant property is good, there is excellent long-term resistance to high temperature, be usually used in processing and fabricating tubing, to be widely used in building in hot and cold water supply system.But because PPR raw material has the attribute of low temperature brittleness, when temperature is lower, PPR pipe easily produces microscopic crack or internal injury, when causing tubing pressure-bearing, water leakage phenomenon takes place frequently, and causes certain hidden danger to subscriber household safe water.
Microscopic crack or internal injury is produced in order to prevent PPR pipe, market is proposed successively multiple PPR metal composite pipe, such as aluminium-plastic composite pipe, Copper-plastic Composite Pipe etc., aluminium or copper are arranged in PPR pipe, increase the Security that pipeline uses, but because PPR and metal thermodynamics performance difference are comparatively large, in use easily produce the hidden danger of layering.
After PPR pipe produces microscopic crack or internal injury, the mode that adhesive tape can be adopted to be wound around is to realize the leak stopping of PPR pipe, but PPR pipe is often in narrow space, the auxiliary device that existing PPR pipe does not have adhesive tape to be wound around, adhesive tape is not easy to through narrow space, cause the winding difficulty of adhesive tape, be not easy to carry out leak stopping to PPR pipe.
Model utility content
The utility model provides the overall plastic composite pipe of a kind of PPR, and comparatively large to solve PPR and metal thermodynamics performance difference, in use tubing easily produces the auxiliary device that layering and PPR pipe do not have adhesive tape to be wound around, and adhesive tape is not easy to the problem through narrow space.
In order to solve the problems of the technologies described above, the utility model provides following technological scheme: the overall plastic composite pipe of a kind of PPR, comprises body, and body comprises PPR skin, PE-RT internal layer and bonding layer, and wherein, bonding layer is between PPR skin and PE-RT internal layer; The outer wall of body is arranged with thimble, the internal diameter of thimble is greater than the external diameter 3-5mm of body, the thickness of thimble is less than 2mm, the arcuate surface of thimble is provided with draw-in groove and intermediate plate, one end of intermediate plate is hinged on thimble, when intermediate plate and draw-in groove clamping, the thickness that thimble arcuate surface given prominence to by intermediate plate is less than 1mm.
PE-RT and heat-proof polythene, have good stability and long-term withstand voltage properties, shock resistance is good, and Security is high, and low-temperature impact-resistant performance is good, can transport at low ambient temperatures, construct.
Principle of the present utility model is: be clamped on thimble by adhesive tape by intermediate plate, and rotate thimble, adhesive tape can be wound around along body, is taken off by adhesive tape from intermediate plate, adhesive tape can be wrapped on body.
Compared with prior art, the utility model has the advantage of: 1, PE-RT internal layer and PPR skin are carried out compound, PE-RT internal layer has good low-temperature impact-resistant performance, compensate for the defect that PPR skin exists low temperature brittleness, in use, body not easily leaks.2, E-RT internal layer and PPR skin are plastics, and both thermodynamic properties are more or less the same, and when temperature changes, both deformation is also more or less the same, and body not easily produces layering.3, body is provided with thimble, and intermediate plate can be connected on thimble, with fixation adhesive tape before adhesive tape can being placed in thimble and intermediate plate, then rotates thimble, assists adhesive tape through narrow space.4, the internal diameter of thimble is greater than the external diameter 3-5mm of body, and the deformation that body radially occurs generally can not more than 3-5mm, even if above-mentioned deformation occurs body, thimble also can pass through body.5, the thickness of thimble is less than 2mm, and the thickness that thimble arcuate surface given prominence to by intermediate plate is less than 1mm, and the thickness of thimble and intermediate plate is all thinner, is convenient to through narrow space.
Further, the outer field thickness of described PPR is the thickness of 1.1mm, PE-RT internal layer is 1.7mm.The body of this size all has good compressive strength and longer working life.
Further, the internal diameter of described thimble is greater than the external diameter 4mm of body, and when body is above-mentioned size, the deformation that body radially occurs can not more than 4mm, and that is, even if body generation deformation, thimble also can pass through body.
Further, described intermediate plate is provided with rubber layer towards the side of draw-in groove, and can increase and friction factor between intermediate plate and adhesive tape, adhesive tape not easily skids off between intermediate plate and thimble.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solutions of the utility model are further illustrated:
Fig. 1 is the side view of the overall plastic composite pipe embodiment of the utility model PPR.
Fig. 2 is the structural representation of the overall plastic composite pipe embodiment of the utility model PPR.
Embodiment
Reference character in Figure of description comprises: PPR skin 1, bonding layer 2, PE-RT internal layer 3, thimble 4, intermediate plate 5, draw-in groove 6, body 7.
The overall plastic composite pipe of a kind of PPR in the present embodiment, comprises body 7, and as shown in Figure 1, body 7 is made up of PPR skin 1, PE-RT internal layer 3 and bonding layer 2.Wherein, bonding layer 2 is between PPR outer 1 and PE-RT internal layer 3, and bonding layer 2 is made for PE-RT, PPR material is mixed and modified.As shown in Figure 2, the outer wall of body 7 is arranged with thimble 4, the internal diameter of thimble 4 is greater than the external diameter 4mm of body 7, and penetration pipe can in the cofree rotation of body 7 and slip.The thickness of thimble 4 is 2mm, the arcuate surface of thimble 4 is provided with draw-in groove 6 and intermediate plate 5, and one end of intermediate plate 5 is hinged on thimble 4, the other end of intermediate plate 5 can with draw-in groove 6 clamping, when intermediate plate 5 and draw-in groove 6 clamping, the thickness that thimble 4 arcuate surface given prominence to by intermediate plate 5 is 1mm.Intermediate plate 5 is provided with rubber layer towards the side of draw-in groove 6, and the thickness of rubber layer is 0.2mm.
II type PE-RT all selected by PE-RT material in the present embodiment, and PPR outer 1 mainly plays protection and socket joint connects, and PE-RT internal layer 3 mainly plays pressure-bearing.According to the regulation in GBT18742-2002, GBT28799-2012, GBT50349-2005, as follows to the wall thickness calculate of PPR outer 1 and PE-RT internal layer 3:
The selection (GBT18742.2-2002) of table 1:PPR pipe series S
As seen from the above table, II type PERT designs Zernike annular polynomial (data from GBT28799.2-2012) according to it, at appropriate level with under using pressure, it is a lot of that pipe series S exceeds standard-required, and namely II type PE-RT has larger performance to have more than needed, therefore in multiple tube in feedwater field, total wall thickness and PPR pipe road system are consistent, by reducing the thickness of two type PE-RT, but the bearing requirements under meeting corresponding conditions, and residual thickness is used for the compound of PPR raw material.
With PE-RT internal layer 3 for bearing course, just need determine the thickness of PPR skin 1, that is will ensure that inner tube series S is not more than the S value of two type PERT in table, such as rank 1, design pressure is 0.4, then S≤9.6.For this reason, for each design pressure and use rank, need design thickness, specific as follows:
In formula: D------tube outer diameter
The outer PPR thickness of e1-----
E------tubing total thickness
According to the location of multiple tube, for building interior cold and hot water supply system, therefore do not consider rank 4 and rank 5 during wall thickness design; Select according to pipe series in polypropylene construction technique normalizing GBT50349-2005, as shown in the table, for cold water pipe series S4 and S5, the nominal pressure according to PPR skin 1 carries out wall thickness design simultaneously.
The pipe series of table 2 cold water pipe, hot-water line design pressure is selected
The present embodiment needs rank 1, and design pressure is 0.8MPa, is the composite pipe of D20*2.8 for specification, if need meet rank 1, uses pressure 0.8MPa, and when 50 years life-spans required, it is thick that outer 1 thickness of PPR is about 1.1mm, and namely PE-RT internal layer 3 thickness is about 1.7mm.
Usually be close to wall because of body 7 to lay, when being wound around adhesive tape, adhesive tape is softer again, not easily passes in the space being close to wall.The present embodiment thimble 4 is mainly used to assist adhesive tape to pass in the space being close to wall, makes it be wrapped on body 7, contributes to body 7 leak stopping.
The using method of thimble 4 is as follows: be separated with draw-in groove 6 by intermediate plate 5, is placed on by adhesive tape on thimble 4 arcuate surface.Press lower clamping piece 5 again, make clamp be connected on draw-in groove 6, simultaneously adhesive tape clamps (because intermediate plate 5 is provided with rubber layer towards the side of draw-in groove 6, the friction factor between rubber layer and adhesive tape is comparatively large, and adhesive tape is also not easy landing from intermediate plate 5) by clamp.Then rotate thimble 4, adhesive tape can be wound around along body 7, is taken off by adhesive tape from intermediate plate 5, adhesive tape is aimed at the leakage area of body 7, and strains adhesive tape, and adhesive tape will be wrapped on the leakage area of body 7.
In the present embodiment, the thickness of thimble 4 is 2mm, and the thickness that thimble 4 arcuate surface given prominence to by intermediate plate 5 is 1mm, and when utilizing thimble 4 threading, the thickness that thimble 4 is the thickest is only 3mm, and thimble 4 freely can rotate in comparatively narrow space.
For a person skilled in the art; under the prerequisite not departing from the utility model structure; can also make some distortion and improvement, these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (4)
1. the overall plastic composite pipe of PPR, comprises body, and body comprises PPR skin, it is characterized in that: body also comprises PE-RT internal layer and bonding layer, and wherein, bonding layer is between PPR skin and PE-RT internal layer; The outer wall of body is arranged with thimble, the internal diameter of thimble is greater than the external diameter 3-5mm of body, the thickness of thimble is less than 2mm, the arcuate surface of thimble is provided with draw-in groove and intermediate plate, one end of intermediate plate is hinged on thimble, the other end of intermediate plate can with draw-in groove clamping, when intermediate plate and draw-in groove clamping, the thickness that thimble arcuate surface given prominence to by intermediate plate is less than 1mm.
2. the overall plastic composite pipe of PPR as claimed in claim 1, is characterized in that: the outer field thickness of described PPR is the thickness of 1.1mm, PE-RT internal layer is 1.7mm.
3. the overall plastic composite pipe of PPR as claimed in claim 2, is characterized in that: the internal diameter of described thimble is greater than the external diameter 4mm of body.
4. the overall plastic composite pipe of PPR as claimed in claim 3, is characterized in that: described intermediate plate is provided with rubber layer towards the side of draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520483766.XU CN204901098U (en) | 2015-07-07 | 2015-07-07 | Plastic compound pipe of PPR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520483766.XU CN204901098U (en) | 2015-07-07 | 2015-07-07 | Plastic compound pipe of PPR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204901098U true CN204901098U (en) | 2015-12-23 |
Family
ID=54923272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520483766.XU Active CN204901098U (en) | 2015-07-07 | 2015-07-07 | Plastic compound pipe of PPR |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204901098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895226A (en) * | 2017-03-03 | 2017-06-27 | 新兴能源装备股份有限公司 | A kind of rubber tube small opening fast repairing method |
-
2015
- 2015-07-07 CN CN201520483766.XU patent/CN204901098U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895226A (en) * | 2017-03-03 | 2017-06-27 | 新兴能源装备股份有限公司 | A kind of rubber tube small opening fast repairing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204901098U (en) | Plastic compound pipe of PPR | |
| CN203963303U (en) | The anti-cracking plastic joint of preventing water leakage copper insert | |
| CN204358296U (en) | Conversion breakdown joint moulded by steel | |
| CN205371846U (en) | Ground heating coil | |
| CN101430035B (en) | Sliding type aluminium plastic composite pipe fittings | |
| CN203927147U (en) | A kind of foggara connection set | |
| CN201351772Y (en) | Aluminum-plastic composite pipe | |
| CN206861152U (en) | A kind of double inner tube formula polyurethane thermal pipe | |
| CN204647590U (en) | Plastic steel composite pipe | |
| CN204592603U (en) | A kind of environmental corrosion resisting aluminum alloy lining plastic composite pipe material and pipe-line system | |
| CN207715976U (en) | It is a kind of can Operating Pressure pipe first-aid device | |
| CN202266763U (en) | Double-orientation fiber reinforcement random copolymerization polypropylene three-layer composite pipe | |
| CN203614934U (en) | Continuous fiber reinforced thermoplastic composite pipeline for oil and gas pipeline network | |
| CN208381523U (en) | Thermoplastic double-skin duct | |
| CN204729780U (en) | A kind of anti-scratch polyethylene composite pipe | |
| CN203784480U (en) | Liner plastic pipeline used for oil field | |
| CN207195863U (en) | A kind of multiple tube | |
| WO2011041711A3 (en) | Pipe jacket | |
| CN204227732U (en) | A kind of explosion-proof solar collector pipe | |
| CN206377353U (en) | A kind of pipeline | |
| CN207421556U (en) | Combustion gas XSC50 cold-contraction types plastics-lined aluminium alloy pipe and pipe-line system | |
| CN203502173U (en) | Test device for water resistance of adhesive under static water pressure | |
| CN204756309U (en) | Vacuum insulation pipe | |
| CN206072578U (en) | A kind of butyronitrile fuel line hose made from fluoro-resin | |
| CN203628126U (en) | Connection device of metal-plastic composite pipe and pipe fitting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |