CN216242733U - Anti-scaling cleaning-free radiation crosslinked polyethylene pipe - Google Patents
Anti-scaling cleaning-free radiation crosslinked polyethylene pipe Download PDFInfo
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- CN216242733U CN216242733U CN202120352961.4U CN202120352961U CN216242733U CN 216242733 U CN216242733 U CN 216242733U CN 202120352961 U CN202120352961 U CN 202120352961U CN 216242733 U CN216242733 U CN 216242733U
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Abstract
The utility model relates to the technical field of polyethylene pipes, in particular to an anti-scaling cleaning-free radiation cross-linked polyethylene pipe which comprises an adhesive layer, a pressure-bearing cross-linked polyethylene layer and a hydrophobic layer. The utility model optimizes the anti-scaling function of the radiation cross-linked polyethylene pipe, and utilizes the hydrophobicity to isolate the easy-scaling substances in the fluid in the pipeline, so that the pipeline can play a role in preventing scaling in daily use, the hydrophobic layer increases the contact angle between the pipeline and the fluid to form a gap, similar to the lotus effect, so that impurities in the fluid are not easy to contact the inner wall of the pipeline and can follow the fluid until the fluid is discharged from the pipeline, thereby realizing the self-cleaning function of the pipeline, keeping the inner wall of the pipeline clean and reducing the scaling probability of the pipeline.
Description
Technical Field
The utility model relates to the technical field of polyethylene pipes, in particular to an anti-scaling cleaning-free radiation crosslinked polyethylene pipe.
Background
Polyethylene pipes have a wide range of applications, ranging from yellow pipes for natural gas small sections to black pipes for thick walls for industrial and urban pipelines, and hollow wall pipes with large diameters are rapidly growing as substitutes for rainwater drains, floor heating pipelines, water pipes and other sewer pipelines made of concrete.
Most of the existing radiation cross-linked polyethylene pipes have no anti-scaling function, the inner wall of the pipe can be scaled after long-time use, the flow area in the pipe is continuously reduced along with the increase of the use time of the pipe, so that the later-stage water pipe inner wall is easy to structure, the fluid in the pipe can not smoothly flow, impurities generated by scaling can influence the purity of the fluid in the pipe, and most of the existing radiation cross-linked polyethylene pipes have no anti-corrosion function, so that the pipeline can crack or break due to corrosion in the later-stage pipeline use, and the existing radiation cross-linked polyethylene pipes mostly have no filter screen to be disassembled, so that the impurities in the fluid in the pipe can flow in the pipe for a long time, scaling is more easily caused, and most of the existing radiation cross-linked polyethylene pipes have no anti-backflow function, so that equipment connected with a pipe orifice is easy to be impacted when the fluid in the pipeline flows backwards, and unnecessary damage is caused, in addition, most of the existing radiation crosslinked polyethylene pipes are not provided with a nanoscale fine protruding layer with a cleaning-free function, so that the inner wall of the pipeline cannot be self-cleaned, and the inner wall of the pipeline is easily contaminated by impurities in fluid.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-scaling and cleaning-free radiation crosslinked polyethylene pipe, which aims to solve the problems that the pipe wall cannot be prevented from scaling and cannot be cleaned in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an anti-scaling exempts from to wash radiation crosslinked polyethylene pipe material, includes hydrophobic layer 4 and pressure-bearing crosslinked polyethylene layer 3, the inner wall cladding of pressure-bearing crosslinked polyethylene layer 3 has hydrophobic layer 4.
Preferably, the bonding layer 1 is arranged outside the pressure-bearing cross-linked polyethylene layer 3.
Preferably, the bonding layer 1 is arranged on the outer side of the pressure-bearing cross-linked polyethylene layer 3; and an oxygen barrier layer 2 is arranged on the outer side of the bonding layer 1.
Preferably, the hydrophobic layer 4 is made of polytetrafluoroethylene or fluorine-containing organosilicon.
Preferably, the polytetrafluoroethylene has an apparent density of 0.41 to 0.82g/cm as measured according to ASTM D4894-073。
Preferably, the weight average molecular weight of the fluorosilicone is 90 to 110.
Preferably, the material of the pressure-bearing cross-linked polyethylene layer is selected from any one of high-density polyethylene, medium-density polyethylene, low-density polyethylene, linear low-density polyethylene, chlorinated polyethylene, chlorosulfonated polyethylene, blend modified polyethylene and ultrahigh molecular weight polyethylene.
Preferably, the high density polyethylene has a melt index of 0.1 to 5g/10min at 190 ℃/2.16 kg.
Preferably, the low density polyethylene has a melt index of 0.2 to 5g/10min at 190 ℃/2.16 kg.
Preferably, the outer surface of the bonding layer is provided with a radiation protection layer.
Preferably, the outer diameter of the anti-scaling and cleaning-free radiation crosslinked polyethylene pipe is 10-2000 mm.
Preferably, the thickness of the hydrophobic layer is 100 μm to 1 mm.
Preferably, the inside joint of hydrophobic layer has the mounting panel.
Preferably, the round hole has been seted up to the inside of mounting panel, the right flank of mounting panel articulates there is the anti-flowing backward door.
Preferably, the mounting groove has been seted up to the inside of tie coat, the inside of tie coat is provided with the filter screen, and the filter screen is on the mounting groove to the surface of tie coat is penetrated to the upper end of filter screen, the last fixed surface of filter screen is connected with the connecting plate, the fixed surface of connecting plate installs C type handle, two thread grooves have been seted up to the surface of tie coat, the inside of connecting plate is inserted and is equipped with two screws, and the screw is connected with the thread groove meshing.
Preferably, the lower surface of the filter screen is fixedly connected with a rubber pad, and the outer surface of the rubber pad is provided with anti-skid grains.
Compared with the prior art, the utility model has the beneficial effects that:
the anti-scaling function of the radiation cross-linked polyethylene pipe is optimized, the hydrophobic property is utilized to isolate easily-scaling substances in fluid in the pipe, so that the pipe can play a role in preventing scaling in daily use, the hydrophobic layer enables a contact angle between the pipe and the fluid to be increased to form a gap, the gap is similar to a lotus effect, impurities in the fluid are not easy to contact the inner wall of the pipe and can follow the fluid until the fluid is discharged from the pipe, the self-cleaning function of the pipe is realized, the inner wall of the pipe is kept clean, and the probability of scaling of the pipe is reduced;
by arranging the filter screen and the connecting plate, small impurities in fluid can not be adsorbed on the inner wall of the pipeline when the fluid in the pipeline flows in the pipeline, and large impurities can be blocked by the filter screen, so that the anti-scaling function is realized, the service life of the pipeline is prolonged, and convenience is brought to production and construction;
prevent flowing backward the door through the setting to can make the pipeline can avoid external inorganic matter's corruption in daily use, increase the application range of pipeline and prolong life, and still increased and prevented flowing backward the function, protected the equipment portion of pipe connection and received the damage.
Drawings
FIG. 1 is a schematic sectional elevation view of the structure of the present invention;
FIG. 2 is a schematic side sectional view of the structure of the present invention;
FIG. 3 is a schematic top cross-sectional view of the structure of the present invention;
fig. 4 is a schematic perspective view of the present invention.
In the figure: 1. a bonding layer; 2. an oxygen barrier layer; 3. a pressure-bearing cross-linked polyethylene layer; 4. a hydrophobic layer; 5. a filter screen; 51. a connecting plate; 52. a C-shaped handle; 6. mounting a plate; 61. a circular hole; 62. prevent flowing backward the door.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention is shown:
the utility model provides an anti-scaling exempts from to wash radiation crosslinked polyethylene pipe material, includes hydrophobic layer 4 and pressure-bearing crosslinked polyethylene layer 3, the inner wall cladding of pressure-bearing crosslinked polyethylene layer 3 has hydrophobic layer 4.
Further, a bonding layer 1 is arranged on the outer side of the pressure-bearing cross-linked polyethylene layer 3.
Through setting up tie coat 1 to can not receive the radiation influence in daily use, bring the facility for subsequent production.
Further, a bonding layer 1 is arranged on the outer side of the pressure-bearing cross-linked polyethylene layer 3; and an oxygen barrier layer 2 is arranged on the outer side of the bonding layer 1.
Furthermore, the hydrophobic layer 4 is made of polytetrafluoroethylene or fluorine-containing organic silicon.
Polytetrafluoroethylene (abbreviated as PTFE), commonly known as "plastic king", is a high molecular polymer prepared by polymerizing tetrafluoroethylene as a monomer. White wax, translucency, heat resistance and cold resistance are excellent, and the glass can be used for a long time at minus 180-260 ℃. The material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, and is almost insoluble in all solvents. Meanwhile, the polytetrafluoroethylene has the characteristic of high temperature resistance, and the friction coefficient of the polytetrafluoroethylene is extremely low.
Further, the polytetrafluoroethylene has an apparent density of 0.41 to 0.82g/cm as measured according to ASTM D4894-073。
Further, the weight average molecular weight of the fluorine-containing siloxane is 90-110.
Further, the fluorine-containing siloxane is
AF。
Further, the material of the pressure-bearing cross-linked polyethylene layer 3 is selected from any one of high-density polyethylene, medium-density polyethylene, low-density polyethylene, linear low-density polyethylene, chlorinated polyethylene, chlorosulfonated polyethylene, blend modified polyethylene, and ultrahigh molecular weight polyethylene.
Further, the high-density polyethylene has a melt index of 0.1-5g/10min at 190 ℃/2.16 kg.
The high-density polyethylene has good heat resistance and cold resistance, good chemical stability, insolubility in any organic solvent, and acid, alkali and various salt corrosion resistance; also has higher rigidity and toughness and good mechanical strength. The dielectric property and the environmental stress cracking resistance are also better. The hardness, tensile strength and creep property are better than those of low-density polyethylene; the wear resistance, the electrical insulation, the toughness and the cold resistance are all better than those of low-density polyethylene; the high-density polyethylene film has low permeability to water vapor and air and low water absorption.
Further, the low density polyethylene has a melt index of 0.2-5g/10min at 190 ℃/2.16 kg.
The low-density polyethylene has good flexibility, extensibility, electrical insulation, easy processability and certain air permeability. The chemical stability is better, and the alkali-resistant and general organic solvent-resistant performance is achieved.
Furthermore, the outer diameter of the anti-scaling and cleaning-free radiation crosslinked polyethylene pipe is 10-2000 mm.
The outer diameter of the anti-fouling and cleaning-free radiation crosslinked polyethylene pipe can be exemplified by 10, 16, 20, 25, 32, 40, 50, 63, 75, 90, 110, 125, 140, 160, 180, 200, 225, 250, 280, 315, 355, 400, 450, 500, 560, 630, 710, 800, 900, 1000, 1200, 1400, 1600mm and the like.
Further, the thickness of the hydrophobic layer is 100 μm-1 mm.
Further, the inside joint of hydrophobic layer 4 has mounting panel 6, and round hole 61 has been seted up to mounting panel 6's inside, and mounting panel 6's right flank articulates there is anti-flowing backward door 62, through setting up anti-flowing backward door 62 to can make the pipeline can not take place the phenomenon of flowing backward in daily use, bring the convenience for the device.
Furthermore, an installation groove is formed in the bonding layer 1, a filter screen 5 is arranged in the bonding layer 1, the filter screen 5 is arranged on the installation groove, the upper end of the filter screen 5 penetrates through the outer surface of the bonding layer 1, a connecting plate 51 is fixedly connected to the upper surface of the filter screen 5, a C-shaped handle 52 is fixedly arranged on the outer surface of the connecting plate 51, two thread grooves are formed in the outer surface of the bonding layer 1, two screws are inserted into the connecting plate 51 and are connected with the thread grooves in a meshed mode, and through the arrangement of the filter screen 5, other components connected with the bonding layer 1 cannot be blocked by impurities in fluid in a pipeline, so that convenience is brought to subsequent production work;
further, the lower fixed surface of filter screen 5 is connected with the rubber pad, and the surface of rubber pad has seted up anti-skidding line, through setting up rubber pad and anti-skidding line to can make the filter screen can not cause the damage to the inner wall of tie coat 1 at the in-process of plug, prolong its life.
The working principle of the anti-scaling cleaning-free radiation crosslinked polyethylene pipe is as follows: when the pipeline gets into fluid, owing to seted up hydrophobic layer 4, the contact angle of fluid and pipe wall in the pipeline can increase, make produce extremely thin clearance between fluid and the pipeline inner wall, make the impurity in the fluid can not adhere to in the pipeline, and big impurity can be filtered by connecting plate 51 and stop on connecting plate 51, when impurity on connecting plate 51 is too much, can unscrew the screw and actuate C type handle 52 and take out filter screen 5, wash or change, when the pipeline stops letting in fluid, owing to set up one-way open and shut prevent flowing backward door 62, intraductal fluid can be blocked and can not flow backward, when there is perishable material around the pipeline, the protection pipeline that radiation protection layer 2 can be fine is not corroded.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a prevent that scale deposit does not exempt from to wash radiation crosslinked polyethylene pipe material which characterized in that, includes hydrophobic layer (4) and pressure-bearing crosslinked polyethylene layer (3), the inner wall cladding of pressure-bearing crosslinked polyethylene layer (3) has hydrophobic layer (4).
2. An anti-scaling cleaning-free radiation crosslinked polyethylene pipe as claimed in claim 1, characterized in that the outside of the pressure bearing crosslinked polyethylene layer (3) is provided with a bonding layer (1).
3. An anti-scaling cleaning-free radiation crosslinked polyethylene pipe as claimed in claim 1, characterized in that a bonding layer (1) is arranged outside the pressure-bearing crosslinked polyethylene layer (3); and an oxygen barrier layer (2) is arranged on the outer side of the bonding layer (1).
4. The anti-scaling, cleaning-free and radiation crosslinked polyethylene pipe according to claim 1, characterized in that: the hydrophobic layer (4) is made of polytetrafluoroethylene or fluorine-containing organic silicon.
5. The anti-scaling, cleaning-free and radiation crosslinked polyethylene pipe according to claim 4, wherein: the polytetrafluoroethylene has an apparent density of 0.41 to 0.82g/cm as measured according to ASTM D4894-073。
6. The anti-scaling, cleaning-free and radiation crosslinked polyethylene pipe according to claim 4, wherein: the fluorine-containing organic silicon is fluorine-containing siloxane, and the weight average molecular weight of the fluorine-containing siloxane is 90-110.
7. An anti-scaling, clean-free, radiation crosslinked polyethylene pipe according to any of claims 1-6, characterized in that: the material of the pressure-bearing cross-linked polyethylene layer (3) is selected from any one of high-density polyethylene, medium-density polyethylene, low-density polyethylene, linear low-density polyethylene, chlorinated polyethylene, chlorosulfonated polyethylene, blending modified polyethylene and ultrahigh molecular weight polyethylene.
8. The anti-scaling, cleaning-free, radiation crosslinked polyethylene pipe according to claim 7, characterized in that: the high-density polyethylene has a melt index of 0.1-5g/10min at 190 ℃/2.16 kg.
9. The anti-scaling, cleaning-free, radiation crosslinked polyethylene pipe according to claim 7, characterized in that: the low-density polyethylene has a melt index of 0.2-5g/10min at 190 ℃/2.16 kg.
10. The anti-scaling, cleaning-free and radiation crosslinked polyethylene pipe according to claim 1, wherein the anti-scaling, cleaning-free and radiation crosslinked polyethylene pipe has an outer diameter of 10-2000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120352961.4U CN216242733U (en) | 2021-02-07 | 2021-02-07 | Anti-scaling cleaning-free radiation crosslinked polyethylene pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120352961.4U CN216242733U (en) | 2021-02-07 | 2021-02-07 | Anti-scaling cleaning-free radiation crosslinked polyethylene pipe |
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| Publication Number | Publication Date |
|---|---|
| CN216242733U true CN216242733U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120352961.4U Active CN216242733U (en) | 2021-02-07 | 2021-02-07 | Anti-scaling cleaning-free radiation crosslinked polyethylene pipe |
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| Country | Link |
|---|---|
| CN (1) | CN216242733U (en) |
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2021
- 2021-02-07 CN CN202120352961.4U patent/CN216242733U/en active Active
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