CN108468874A - A kind of enhancing polyethylene pressure pipe, pressure line and pressure pipe manufacturing method - Google Patents
A kind of enhancing polyethylene pressure pipe, pressure line and pressure pipe manufacturing method Download PDFInfo
- Publication number
- CN108468874A CN108468874A CN201810676309.0A CN201810676309A CN108468874A CN 108468874 A CN108468874 A CN 108468874A CN 201810676309 A CN201810676309 A CN 201810676309A CN 108468874 A CN108468874 A CN 108468874A
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- pressure pipe
- connection structure
- layer
- tube body
- density polyethylene
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 92
- -1 polyethylene Polymers 0.000 title claims abstract description 87
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 87
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 65
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 58
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 58
- 230000002787 reinforcement Effects 0.000 claims abstract description 53
- 239000000835 fiber Substances 0.000 claims abstract description 47
- 239000000853 adhesive Substances 0.000 claims abstract description 35
- 230000001070 adhesive effect Effects 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 17
- 229920001684 low density polyethylene Polymers 0.000 claims description 75
- 239000004702 low-density polyethylene Substances 0.000 claims description 75
- 238000003780 insertion Methods 0.000 claims description 51
- 230000037431 insertion Effects 0.000 claims description 51
- 238000002425 crystallisation Methods 0.000 claims description 20
- 230000008025 crystallization Effects 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000004927 fusion Effects 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 150000001336 alkenes Chemical class 0.000 claims description 5
- 241000233855 Orchidaceae Species 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 111
- 239000011521 glass Substances 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000011152 fibreglass Substances 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A kind of enhancing polyethylene pressure pipe, pressure line and pressure pipe manufacturing method; pressure pipe includes tube body, connection structure A, the connection structure B at tube body both ends is arranged, and tube body includes liner layer from the inside to the outside, middle reinforcement layer, external protection and positioned at the adhesive linkage between them；Liner layer, external protection are high-density polyethylene layer；Middle reinforcement layer includes being wrapped on the outside of the adhesive linkage by its length direction vertical tube axis along the reinforcing fiber band that fiber belt length, wide direction are woven by superhigh molecular weight polyethylene fibers；The connection structure A of adjacent pressure pipe, connection structure B cooperations connect and compose pipeline between realizing tube body；Pressure line includes the above-mentioned pressure pipe of multistage, is formed by connecting by attachment device and sealing element；Method includes preparing reinforcing fiber band, making liner layer, middle reinforcement layer, external protection and connection structure A and connection structure B.The tube body intensity of the present invention is high, plasticity is good, corrosion-resistant, wear-resistant, antiknock is split, and meets the manufacture of major diameter pressure pipe.
Description
Technical field
The present invention relates to a kind of enhancing polyethylene pressure pipe structures, further relate to the manufacturer of the enhancing polyethylene pressure pipe
Method.
Background technology
Diameter pressure pipe (general diameter is in 800-2000mm ranges, operating pressure in 0.4-1.6MPa ranges) big or middle is made
For water delivery, defeated slurry, oil pipeline, go in plumbing municipal works, water conservancy, mine, sea water desalination and oil and gas exploitation etc.
Industry is found broad application.Existing big or middle diameter pressure pipe mostly uses PCCP pipes, PE solid wall pipes, fiberglass reinforced polyethylene pressure
Pipe structure, wherein
PCCP pipes are Prestressed concrete cylinder pipe, are to be built into certain thickness steel cylinder in concrete tube wall, outside steel cylinder
The circumferential twine of portion's winding, outermost layer pour into a mould mixed earth protective layer, and the defect for overcoming pipe of concrete easy to leak, rigidity low obtains not
The high big or middle diameter pressure pipe of leakage, stiffness.But there are the low defect of internal layer steel cylinder corrosion resistance, service lifes for PCCP pipes
It is shorter.
PE solid wall pipes use high density polyethylene (HDPE) (HDPE) for raw material.Since HDPE intensity is relatively low, bore 2000mm is manufactured
When the above tubing, larger pipe wall thickness need to be used, because of " sag " (modeling squeezed out from head die mouth of plastics generally existing
Material molten mass is influenced by gravity, can be flowed downward, be influenced being uniformly distributed for pipe thickness), manufacture the heavy caliber of uniform wall thickness
Technically there is very big technical difficulty in thick tube wall PE solid wall pipes.
To overcome defect existing for PCCP pipes and PE solid wall pipes, there is fiberglass reinforced polyethylene pressure pipe, i.e., in poly- second
Alkene pipe outer wall winds glass fibre to enhance the pressure pipe of tube body intensity.Since polyethylene is non-polar material, in any state
Lower polyethylene can not bond together with glass resin used in glass and glass, and there are layering phenomena, and glass fibre is caused to increase
Potent fruit substantially reduces；In addition, in the polyethylene pressure pipe of fiberglass reinforced, since make that glass fibre is combined with each other is not
Saturated polyester, unsaturated polyester (UP) intensity is low, and brittleness is big as glass, though glass intensity is very high, belongs to fragile material；Glass
Fibril rough surface is uneven, not wear-resisting, not folding, intolerant to torsion, holds very much if glass fiber yarn is not impregnated and coated by resin
Easy damaged, fracture.In addition, glass fiber yarn surface area is relatively large, not resistant to chemical media corrosion and water erosion causes fiberglass reinforced poly-
Ethylene pressure pipe is susceptible to explosion.
The prior art lacks the big or middle diameter pressure that intensity is high, corrosion-resistant, service life is long, is suitble to complicated use environment
Pipe.
Invention content
One of the technical problem to be solved in the present invention is, provides a kind of enhancing polyethylene pressure pipe, overcomes existing glass
It is easy to damage, is broken existing for enhancing polyethylene pressure pipe, not resistant to chemical media corrosion and the defects of water erosion.
The second technical problem to be solved by the present invention is, provides a kind of pressure line, overcomes the poly- second of existing fiberglass reinforced
It is easy to damage, is broken existing for alkene pressure line, not resistant to chemical media corrosion and the defects of water erosion.
The third technical problem to be solved by the present invention is, provides a kind of pressure pipe manufacturing method, and existing glass is overcome to increase
It is easy to damage, is broken existing for strength polyethylene pressure pipe, not resistant to chemical media corrosion and the defects of water erosion.
The present invention solves technical solution used by one of its technical problem：A kind of enhancing polyethylene pressure pipe is constructed,
Including tube body, be arranged tube body one end connection structure A and the connection structure B in the tube body other end is set；It is characterized in that,
The tube body includes liner layer from the inside to the outside, middle reinforcement layer, external protection and among the liner layer and this
Adhesive linkage between enhancement layer, between the middle reinforcement layer and the external protection；
The liner layer is high-density polyethylene layer；
The middle reinforcement layer includes reinforcing fiber band, and the reinforcing fiber band is by superhigh molecular weight polyethylene fibers along fiber band
Length direction and fiber bandwidth direction weave；The reinforcing fiber band is by its length direction perpendicular to the tube body axis
Direction is wrapped on the outside of the adhesive linkage between the liner layer and middle reinforcement layer；
The external protection is high-density polyethylene layer；
The adhesive linkage be welded with the high-density polyethylene layer, middle reinforcement layer under less than or equal to 125 degrees Celsius for
One and the low density polyethylene layer for forming crystallization；
The connection structure A of one section of pressure pipe can realize institute with the connection structure B cooperations of another section of pressure pipe
It states and connects and composes pipeline between tube body.
In the enhancing polyethylene pressure pipe of the present invention, the middle reinforcement layer includes at least two layers of reinforcing fiber band,
Include adhesive linkage two between two layers of reinforcing fiber band, which is fine with the enhancing under less than or equal to 125 degrees Celsius
It ties up and is connected in one with melting dissolving and forms the low density polyethylene layer of crystallization.
In the enhancing polyethylene pressure pipe of the present invention, the connection structure A, connection structure B use such as lower structure：
The connection structure A includes the flange A and taper insert port being arranged in described tube body one end end, the connection knot
Structure B include be arranged tube body other end end flange B and protrude from the insertion ends of flange B connecting end surfaces；One section of institute
State enhancing polyethylene pressure pipe flange A and taper insert port can with another section it is described enhancing polyethylene pressure pipe flange B and
Insertion end coordinates, and two sections of enhancing polyethylene pressure are realized by connecting bolt and the sealing element being sleeved in the insertion end
The seal of tube connects；
Or the connection structure A includes the annular convex platform A and taper insert port being arranged in described tube body one end end, it is described
Connection structure B include be arranged tube body other end end annular convex platform B and protrude from annular convex platform B connecting end surfaces
Insertion end；One section of annular convex platform A for enhancing polyethylene pressure pipe and taper insert port can be with another section of poly- second of enhancing
The annular convex platform B and insertion end of alkene pressure pipe coordinate, and coordinate with the annular convex platform A, annular convex platform B by respectively detachable
Flange, the sealing element being sleeved in the insertion end and connection bolt realize that two sections of enhancing polyethylene pressure pipe sealings connect
It connects.
Technical solution is used by the present invention solves the two of its technical problem：Construct a kind of pressure line, including multistage
Mutually matched pressure pipe, attachment device, sealing element；The pressure pipe includes tube body, the connection structure A in tube body one end is arranged
With the connection structure B in the tube body other end is set；It is characterized in that,
The tube body includes liner layer from the inside to the outside, middle reinforcement layer, external protection and among the liner layer and this
Adhesive linkage between enhancement layer, between the middle reinforcement layer and the external protection；
The liner layer is high-density polyethylene layer；
The middle reinforcement layer includes reinforcing fiber band, and the reinforcing fiber strip length direction is perpendicular to the side of the tube body axis
To being wrapped on the outside of the liner layer, the reinforcing fiber band is by superhigh molecular weight polyethylene fibers along fiber strip length direction and fiber
Bandwidth direction weaves；
The external protection is high-density polyethylene layer；
The adhesive linkage be welded with the high-density polyethylene layer, middle reinforcement layer under less than or equal to 125 degrees Celsius for
One and the low density polyethylene layer for forming crystallization；
Connection structure A, the connection structure B of the adjacent pressure pipe cooperate, and are realized and connected by the attachment device
It connects, the sealing element realizes sealing between the connection structure A, connection structure B.
In the pressure line of the present invention, the middle reinforcement layer of the pressure pipe includes at least two layers of reinforcing fiber band,
Include adhesive linkage two between two layers of reinforcing fiber band, which is fine with the enhancing under less than or equal to 125 degrees Celsius
It ties up and is connected in one with melting dissolving and forms the low density polyethylene layer of crystallization.
In the pressure line of the present invention, connection structure A, the connection structure B of the pressure pipe use such as lower structure：
The connection structure A includes the flange A and taper insert port being arranged in described tube body one end end, the connection knot
Structure B include be arranged tube body other end end flange B and protrude from the insertion ends of flange B connecting end surfaces；One section of institute
State enhancing polyethylene pressure pipe flange A and taper insert port can with another section it is described enhancing polyethylene pressure pipe flange B and
Insertion end coordinates；The sealing element is between the mutually matched insertion end and the taper insert port；The connection dress
It is set to connection bolt, which will be adjacent across the bolt hole of the mutually matched flange A of adjacent pressure pipe, flange B
The pressure pipe is connected；
Or the connection structure A includes the annular convex platform A and taper insert port being arranged in described tube body one end end, it is described
Connection structure B include be arranged tube body other end end annular convex platform B and protrude from annular convex platform B connecting end surfaces
Insertion end；One section of annular convex platform A for enhancing polyethylene pressure pipe and taper insert port can be with another section of poly- second of enhancing
The annular convex platform B and insertion end of alkene pressure pipe coordinate；The sealing element is located at the mutually matched insertion end and the taper
Between insert port；The attachment device includes connection bolt and dismountable flange；The dismountable flange include dismountable flange A and
Dismountable flange B, dismountable flange A Demountable assemblings on one section of pressure pipe tube body and with it is annular described in the pressure pipe
Boss A cooperation, dismountable flange B Demountable assemblings on the adjacent one section pressure pipe tube body and with described in the pressure pipe
Annular convex platform B cooperations；The connection bolt passes through the mutually matched dismountable flange A of adjacent pressure pipe, dismountable flange B
Bolt hole the adjacent pressure pipe is connected.
Technical solution is used by the present invention solves the three of its technical problem：A kind of pressure pipe manufacturing method, institute are provided
State pressure pipe include tube body, be arranged tube body one end connection structure A and the connection structure B in the tube body other end is set；It is special
Sign is,
The tube body includes liner layer from the inside to the outside, middle reinforcement layer, external protection and among the liner layer and this
Adhesive linkage between enhancement layer, between the middle reinforcement layer and the external protection；
The liner layer is high-density polyethylene layer；
The middle reinforcement layer includes reinforcing fiber band, and the reinforcing fiber strip length direction is perpendicular to the side of the tube body axis
To being wrapped on the outside of the liner layer, the reinforcing fiber band is by superhigh molecular weight polyethylene fibers along fiber strip length direction and fiber
Bandwidth direction weaves；
The external protection is high-density polyethylene layer；
The adhesive linkage be welded with the high-density polyethylene layer, middle reinforcement layer under less than or equal to 125 degrees Celsius for
One and the low density polyethylene layer for forming crystallization；
The connection structure A of one section of pressure pipe can realize institute with the connection structure B cooperations of another section of pressure pipe
It states and connects and composes pipeline between tube body；
Described method includes following steps：
S1, reinforcing fiber band is prepared：Fibre bundle is made with superhigh molecular weight polyethylene fibers, multiple fibre beam is pressed into steel wire
Rope manufacture craft is twisted cordage, and cordage is woven into reinforcing fiber along fiber strip length direction and fiber bandwidth direction
Band；
S2, liner layer is made：The high density polyethylene (HDPE) band of molten state is wound into fusion molding liner layer on core model；
S3, middle reinforcement layer is made：Squeeze out molten state low density polyethylene (LDPE) and being wrapped on the liner layer formed it is low close
Polyethylene layer is spent, ensures that the molten state low density polyethylene (LDPE) temperature is less than or equal to 125 degree Celsius, by the reinforcing fiber band with it
Length direction is wrapped in perpendicular to the direction of the tube body axis on the outside of low density polyethylene layer, and low density polyethylene layer forms knot
It is brilliant；
S4, external protection is made：Squeeze out molten state low density polyethylene (LDPE) and being wrapped in the middle reinforcement layer formed it is low
Density polyethylene two ensures that the molten state low density polyethylene (LDPE) temperature is less than or equal to 125 degree Celsius, by the high density of molten state
Polyethylene is wrapped in fusion molding external protection on the low density polyethylene layer two, and low density polyethylene layer two forms knot
Crystalline substance obtains tube body；
S5, connection structure A and connection structure B is made：Connection structure A is made in tube body one end, is made in the tube body other end
Connection structure B；One or both of connection structure A, connection structure B use the making of high density polyethylene (HDPE) band or connection structure A, connect
One or both of binding structure B makes internal layer, using low density polyethylene (LDPE) and the reinforcing fiber band using high density polyethylene (HDPE) band
It makes middle reinforcement layer, external protection is made using low density polyethylene (LDPE) and high density polyethylene (HDPE).
In the enhancing polyethylene pressure pipe manufacturing method of the present invention, the middle reinforcement layer includes that at least two layers enhancing is fine
Tie up band, between two layers of reinforcing fiber band include adhesive linkage two, the adhesive linkage two be under less than or equal to 125 degrees Celsius with it is described
The melting dissolving of reinforcing fiber band is connected in one and forms the low density polyethylene layer of crystallization；
The method step S3 includes：Between two layers of reinforcing fiber band, made of molten state low density polyethylene (LDPE) viscous
Layer two is connect, ensures that adhesive linkage two is to be connected in one with the melting dissolving of reinforcing fiber band under less than or equal to 125 degrees Celsius and formed
Crystallization.
In the enhancing polyethylene pressure pipe manufacturing method of the present invention, the connection structure A, connection structure B are using as follows
Structure：The connection structure A includes the flange A and taper insert port being arranged in described tube body one end end, the connection structure B
Including be arranged tube body other end end flange B and protrude from the insertion ends of flange B connecting end surfaces；One section of increasing
The flange A and taper insert port of strength polyethylene pressure pipe can be with another section of flange B for enhancing polyethylene pressure pipe and insertions
End cooperation realizes that two sections of enhancing polyethylene pressure pipes are close by connecting bolt and the sealing element being sleeved in the insertion end
Envelope connection；
The method step S5 includes：Using taper insert port described in taper insert port modelling, flange A, flange B
Ring flange body complete after, process flange bolt hole.
In the enhancing polyethylene pressure pipe manufacturing method of the present invention, the connection structure A, connection structure B are using as follows
Structure：The connection structure A includes the annular convex platform A and taper insert port being arranged in described tube body one end end, the connection
Structure B include be arranged tube body other end end annular convex platform B and protrude from the insertions of annular convex platform B connecting end surfaces
End；One section of annular convex platform A for enhancing polyethylene pressure pipe and taper insert port can be with another section of enhancing polyethylene pressures
The annular convex platform B and insertion end of solenoid coordinate, and pass through the detachable method coordinated respectively with the annular convex platform A, annular convex platform B
Orchid, the sealing element being sleeved in the insertion end and connection bolt realize that two sections of enhancing polyethylene pressure pipes are tightly connected；
The method step S5 includes：Using taper insert port described in taper insert port modelling.
Implement enhancing polyethylene pressure pipe, pressure line and the pressure pipe manufacturing method of the present invention, compared with the prior art,
Advantage is：
1, the reinforcing fiber band made by using superhigh molecular weight polyethylene fibers is vertical with the machine direction of fiber band
Or be parallel to pressure pipe axial direction and be wrapped on tube body, and utilize low density polyethylene (LDPE) and high density polyethylene (HDPE), supra polymer
Weight northylen molten condition and no more than 125 degree Celsius when weldable crystallize the characteristics of, by ectonexine high-density polyethylene layer
It is closely linked with intermediate ultra-high molecular weight polyethylene enhancement layer, solves enhancement layer and asked with what ectonexine layering was detached from
Topic, gives full play to the high intensity booster action of superhigh molecular weight polyethylene fibers, greatly improves the tube body of big or middle diameter pressure pipe
Intensity, tube body plasticity is good, corrosion-resistant, wear-resistant, antiknock is split；
2, manufacturing process is not limited by caliber size, meets big or middle diameter pressure pipe manufacture.
Description of the drawings
Fig. 1 is a kind of installation diagram of embodiment of pressure line of the present invention.
Fig. 2 is the portions I enlarged drawing in Fig. 1.
Fig. 3 is the portions II enlarged drawing in Fig. 2.
Fig. 4 is the front view of pressure line connecting flange of the present invention.
Fig. 5 is the vertical view of pressure line connecting flange of the present invention.
Fig. 6 is superhigh molecular weight polyethylene fibers braid over braid constructional cross sectional view in present invention enhancing polyethylene pressure pipe.
Fig. 7 is a kind of flow chart of embodiment of pressure pipe manufacturing method of the present invention.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1 to Figure 3, enhancing polyethylene pressure pipe 100 of the invention includes tube body 101, is arranged in tube body one end
Connection structure 102 and the connection structure 103 in the tube body other end is set, tube body 101 includes the liner layer being arranged from the inside to the outside
60, middle reinforcement layer 70, external protection 80 and between liner layer 60 and middle reinforcement layer 70, middle reinforcement layer 70 and outer guarantor
Adhesive linkage 71,73 between sheath 80.
In the present embodiment, two layers of reinforcing fiber band 90 is arranged in middle reinforcement layer 70, between two layers of reinforcing fiber band 90,
Setting adhesive linkage 72 bonds together two layers of reinforcing fiber band 90.One layer of reinforcing fiber can be only set in other embodiments
Three layers or multilayer reinforcing fiber band 90 can also be arranged in band 90, between adjacent two layers reinforcing fiber band 90, be both needed to setting bonding
Layer 72.
Liner layer is made of high density polyethylene (HDPE), is high-density polyethylene layer.
Middle reinforcement layer is made of reinforcing fiber band.As shown in fig. 6, reinforcing fiber band 90 is poly- using super high molecular weight
Fibre bundle is made in vinyl fiber, multiple fibre beam is twisted cordage by steel wire rope manufacture craft, by cordage 91,92 along fiber
Strip length direction and the braiding of fiber bandwidth direction, obtain reinforcing fiber band 90.
The reinforcing fiber band 90 of middle reinforcement layer 70 is according to reinforcing fiber strip length direction perpendicular to 101 axis of pressure pipe tube body
The direction of line is wrapped on the outside of the adhesive linkage between liner layer 60 and middle reinforcement layer 70.
External protection is made of high density polyethylene (HDPE), is high-density polyethylene layer.
Adhesive linkage 71,72,73 is made of low density polyethylene (LDPE), by molten state low density polyethylene (LDPE) less than or equal to 125
With high-density polyethylene layer, middle reinforcement layer and using the middle reinforcement layer of multilayer reinforcing fiber band structure under Celsius Condition
In reinforcing fiber band weld and be integrated and formed crystallization.
The connection structure 102 of one section of pressure pipe connects between can coordinating the realization tube body with the connection structure 103 of another section of pipe
Connect composition pipeline.
Connection structure 102, connection structure 103 can be used including but not limited to such as lower structure：
Structure one：Connection structure 102 includes the flange A and taper insert port being arranged in 101 one end end of tube body, connection knot
Structure 103 include be arranged 101 other end end of tube body flange B and protrude from the insertion end (insertion ends of flange B connecting end surfaces
Conical structure can be used in outside, and cylindrical structure can also be used).The flange A and taper of one section of enhancing polyethylene pressure pipe 100
The flange B and insertion end that insert port can enhance polyethylene pressure pipe 200 with another section coordinate, by connecting bolt and being sleeved on slotting
Enter the sealing element 50 on end and realizes that two sections of enhancing polyethylene pressure pipes 100,200 are tightly connected.
Structure two：Connection structure 102 includes the annular convex platform A and taper insert port being arranged in 101 one end end of tube body, even
Binding structure 103 include be arranged 101 other end end of tube body annular convex platform B and protrude from annular convex platform B connecting end surfaces
(conical structure can be used on the outside of insertion end, cylindrical structure can also be used) in insertion end.One section of enhancing polyethylene pressure pipe 100
Annular convex platform A and taper insert port can with another section enhancing polyethylene pressure pipe 200 annular convex platform B and insertion end coordinate,
By respectively with the dismountable flange 20,30 (as shown in attached drawing 1,2,4,5) of annular convex platform A, annular convex platform B cooperation, be sleeved on
Sealing element 50 and connection bolt 40 in insertion end realize that two sections of enhancing polyethylene pressure pipes 100,200 are tightly connected.
As shown in Figures 1 to 5, pressure line of the invention includes the mutually matched pressure pipe of multistage 100,200, connection dress
It sets and sealing element 50.
Sealing ring, band etc. can be used in sealing element 50.
Pressure pipe uses the enhancing polyethylene pressure pipe of aforementioned present invention, and structure and variation are no longer superfluous herein as above-mentioned
It states.
When the connection structure 102 of pressure pipe, connection structure 103 are using such as above-mentioned " structure one ", sealing element 50 is located at
Between mutually matched insertion end and taper insert port；Attachment device is connection bolt, which passes through adjacent pressure pipe
100,200 mutually matched flange A, flange B bolt hole adjacent pressure pipe is connected.
When the connection structure 102 of pressure pipe, connection structure 103 are using such as above-mentioned " structure two ", sealing element 50 is located at
Between mutually matched insertion end and taper insert port, attachment device 102,103 includes connecting bolt 40 and dismountable flange, can
It includes dismountable flange 20 and dismountable flange 30 to dismantle flange.
Dismountable flange 20 includes two and half flanges of split cooperation, and each half flange includes ring flange 21, is arranged in method
Connection flanging 23 and the link bolt hole that is arranged in connection flanging in ring flange end is arranged in bolt hole 22 on blue disk 21
24, two and half flanges are connected to by connecting the suit of bolt 10 on pressure pipe tube body.
20 Demountable assembling of dismountable flange on the tube body 101 of one section of pressure pipe 100 and with the convex annular of the pressure pipe
Platform A cooperation, 30 Demountable assembling of dismountable flange on the tube body of adjacent one section of pressure pipe 200 and with the convex annular of the pressure pipe
Platform B cooperations.Connecting bolt 40 will across the bolt hole of the mutually matched dismountable flange 20 of adjacent pressure pipe, dismountable flange 30
Adjacent pressure pipe 100,200 is connected.
As described above, the connection structure 102 of pressure pipe, connection structure 103 can also use other structures, therefore, this hair
The connection type of bright pressure line is also not necessarily limited to above two mode.
As shown in fig. 7, the pressure pipe described in the pressure pipe manufacturing method of the present invention is enhancing present invention as described above
Polyethylene pressure pipe, structure and variation are as above-mentioned, and details are not described herein.
The pressure pipe manufacturing method of the present invention includes the following steps：
The first step prepares reinforcing fiber band：Fibre bundle is made with superhigh molecular weight polyethylene fibers, multiple fibre beam is pressed
Steel wire rope manufacture craft is twisted cordage, and cordage is woven into enhancing fibre along fiber strip length direction and fiber bandwidth direction
Tie up band.
Second step makes liner layer：The high density polyethylene (HDPE) band of molten state is wound into fusion molding liner layer on core model.
Third walks, and makes middle reinforcement layer：Squeeze out molten state low density polyethylene (LDPE) and being wrapped on liner layer formed it is low close
Polyethylene layer is spent, ensures that the molten state low density polyethylene (LDPE) temperature is less than or equal to 125 degree Celsius, by reinforcing fiber band with its length
Direction is wrapped in perpendicular to the direction of tube body axis on the outside of low density polyethylene layer, and low density polyethylene layer forms crystallization.
4th step makes external protection：Squeeze out molten state low density polyethylene (LDPE) and being wrapped in middle reinforcement layer formed it is low
Density polyethylene two ensures that the molten state low density polyethylene (LDPE) temperature is less than or equal to 125 degree Celsius, by the high density of molten state
Polyethylene is wrapped in fusion molding external protection on the low density polyethylene layer two, and low density polyethylene layer two forms knot
Crystalline substance obtains tube body.
5th step makes connection structure A and connection structure B：Connection structure A is made in tube body one end, in the tube body other end
Make connection structure B；One or both of connection structure A, connection structure B are made of high density polyethylene (HDPE) band or connection structure
A, one or both of connection structure B makes internal layer, using low density polyethylene (LDPE) and enhancing fibre using high density polyethylene (HDPE) band
Dimension band makes middle reinforcement layer, makes external protection using low density polyethylene (LDPE) and high density polyethylene (HDPE).
When intermediate enhanced layer packets include at least two layers of reinforcing fiber band, adhesive linkage two is set between two layers of reinforcing fiber band,
The adhesive linkage two is to be connected in one with the melting dissolving of reinforcing fiber band under less than or equal to 125 degrees Celsius and form the low close of crystallization
Spend polyethylene layer.Step 3 includes：Between two layers of reinforcing fiber band, adhesive linkage is made with molten state low density polyethylene (LDPE)
Two, ensure that adhesive linkage two is to be connected in one with the melting dissolving of reinforcing fiber band under less than or equal to 125 degrees Celsius and form crystallization.
Step 5 is also similar.
When connection structure A, connection structure B use such as lower structure：Connection structure A includes the method being arranged in tube body one end end
Blue A and taper insert port, connection structure B include be arranged tube body other end end flange B and protrude from the connecting pins flange B
The insertion end in face；One section of flange A for enhancing polyethylene pressure pipe and taper insert port can be with another section of enhancing polyethylene pressure pipes
Flange B and insertion end cooperation, pass through and connect bolt and the sealing element that is sleeved in insertion end realizes two sections of enhancing polyethylene pressures
Solenoid is tightly connected.At this point, step 5 includes：Using taper insert port modelling taper insert port, flange A, flange B
After ring flange body completes, flange bolt hole is processed.
When connection structure A, connection structure B use such as lower structure：Connection structure A includes the ring being arranged in tube body one end end
Shape boss A and taper insert port, connection structure B include be arranged tube body other end end annular convex platform B and protrude from the ring
The insertion end of shape boss B connecting end surfaces；One section of annular convex platform A for enhancing polyethylene pressure pipe and taper insert port can be with another sections
Annular convex platform B and the insertion end cooperation for enhancing polyethylene pressure pipe, can by what is coordinated respectively with annular convex platform A, annular convex platform B
Dismounting flange, the sealing element being sleeved in insertion end and connection bolt realize that two sections of enhancing polyethylene pressure pipes are tightly connected.This
When, step 5 includes：Using taper insert port described in taper insert port modelling.
Claims (10)
1. a kind of enhancing polyethylene pressure pipe, including tube body, be arranged it is another in tube body in the connection structure A of tube body one end and setting
The connection structure B at end；It is characterized in that,
The tube body includes liner layer from the inside to the outside, middle reinforcement layer, external protection and positioned at the liner layer and centre enhancing
Adhesive linkage between layer, between the middle reinforcement layer and the external protection；
The liner layer is high-density polyethylene layer；
The middle reinforcement layer includes reinforcing fiber band, and the reinforcing fiber band is by superhigh molecular weight polyethylene fibers along fiber strip length
Direction and fiber bandwidth direction weave；The reinforcing fiber band is by its length direction perpendicular to the direction of the tube body axis
It is wrapped on the outside of the adhesive linkage between the liner layer and middle reinforcement layer；
The external protection is high-density polyethylene layer；
The adhesive linkage is to weld to be integrated with the high-density polyethylene layer, middle reinforcement layer under less than or equal to 125 degrees Celsius
And form the low density polyethylene layer of crystallization；
The connection structure A of one section of pressure pipe can realize the pipe with the connection structure B cooperations of another section of pressure pipe
Pipeline is connected and composed between body.
2. enhancing polyethylene pressure pipe as described in claim 1, which is characterized in that the middle reinforcement layer includes at least two layers
Reinforcing fiber band includes adhesive linkage two between two layers of reinforcing fiber band, which is under less than or equal to 125 degrees Celsius
It is connected in one with reinforcing fiber band melting dissolving and forms the low density polyethylene layer of crystallization.
3. enhancing polyethylene pressure pipe as claimed in claim 1 or 2, which is characterized in that the connection structure A, connection structure B
Using such as lower structure：
The connection structure A includes the flange A and taper insert port being arranged in described tube body one end end, the connection structure B
Including be arranged tube body other end end flange B and protrude from the insertion ends of flange B connecting end surfaces；One section of increasing
The flange A and taper insert port of strength polyethylene pressure pipe can be with another section of flange B for enhancing polyethylene pressure pipe and insertions
End cooperation realizes that two sections of enhancing polyethylene pressure pipes are close by connecting bolt and the sealing element being sleeved in the insertion end
Envelope connection；
Or the connection structure A includes the annular convex platform A and taper insert port being arranged in described tube body one end end, the connection
Structure B include be arranged tube body other end end annular convex platform B and protrude from the insertions of annular convex platform B connecting end surfaces
End；One section of annular convex platform A for enhancing polyethylene pressure pipe and taper insert port can be with another section of enhancing polyethylene pressures
The annular convex platform B and insertion end of solenoid coordinate, and pass through the detachable method coordinated respectively with the annular convex platform A, annular convex platform B
Orchid, the sealing element being sleeved in the insertion end and connection bolt realize that two sections of enhancing polyethylene pressure pipes are tightly connected.
4. a kind of pressure line, including the mutually matched pressure pipe of multistage, attachment device, sealing element；The pressure pipe includes pipe
Body, be arranged tube body one end connection structure A and the connection structure B in the tube body other end is set；It is characterized in that,
The tube body includes liner layer from the inside to the outside, middle reinforcement layer, external protection and positioned at the liner layer and centre enhancing
Adhesive linkage between layer, between the middle reinforcement layer and the external protection；
The liner layer is high-density polyethylene layer；
The middle reinforcement layer includes reinforcing fiber band, which twines perpendicular to the direction of the tube body axis
It is wound on the outside of the liner layer, the reinforcing fiber band is by superhigh molecular weight polyethylene fibers along fiber strip length direction and fiber bandwidth
Degree direction weaves；
The external protection is high-density polyethylene layer；
The adhesive linkage is to weld to be integrated with the high-density polyethylene layer, middle reinforcement layer under less than or equal to 125 degrees Celsius
And form the low density polyethylene layer of crystallization；
Connection structure A, the connection structure B of the adjacent pressure pipe cooperate, and are realized and connected by the attachment device, institute
It states sealing element and realizes sealing between the connection structure A, connection structure B.
5. pressure line as claimed in claim 4, which is characterized in that the middle reinforcement layer of the pressure pipe includes at least two layers
Reinforcing fiber band includes adhesive linkage two between two layers of reinforcing fiber band, which is under less than or equal to 125 degrees Celsius
It is connected in one with reinforcing fiber band melting dissolving and forms the low density polyethylene layer of crystallization.
6. pressure line as described in claim 4 or 5, which is characterized in that connection structure A, the connection structure B of the pressure pipe
Using such as lower structure：
The connection structure A includes the flange A and taper insert port being arranged in described tube body one end end, the connection structure B
Including be arranged tube body other end end flange B and protrude from the insertion ends of flange B connecting end surfaces；One section of increasing
The flange A and taper insert port of strength polyethylene pressure pipe can be with another section of flange B for enhancing polyethylene pressure pipe and insertions
End cooperation；The sealing element is between the mutually matched insertion end and the taper insert port；The attachment device is
Bolt is connected, which will be adjacent described across the bolt hole of the mutually matched flange A of adjacent pressure pipe, flange B
Pressure pipe is connected；
Or the connection structure A includes the annular convex platform A and taper insert port being arranged in described tube body one end end, the connection
Structure B include be arranged tube body other end end annular convex platform B and protrude from the insertions of annular convex platform B connecting end surfaces
End；One section of annular convex platform A for enhancing polyethylene pressure pipe and taper insert port can be with another section of enhancing polyethylene pressures
The annular convex platform B and insertion end of solenoid coordinate；The sealing element is located at the mutually matched insertion end and is inserted into the taper
Between mouthful；The attachment device includes connection bolt and dismountable flange；The dismountable flange includes dismountable flange A and removable
Unload flange B, dismountable flange A Demountable assemblings on one section of pressure pipe tube body and with annular convex platform described in the pressure pipe
A coordinate, dismountable flange B Demountable assemblings on the adjacent one section pressure pipe tube body and with the annular of the pressure pipe
Boss B cooperations；The connection bolt passes through the spiral shell of the mutually matched dismountable flange A of adjacent pressure pipe, dismountable flange B
The adjacent pressure pipe is connected by keyhole.
7. a kind of pressure pipe manufacturing method, the pressure pipe includes tube body, is arranged and exists in the connection structure A of tube body one end and setting
The connection structure B of the tube body other end；It is characterized in that,
The tube body includes liner layer from the inside to the outside, middle reinforcement layer, external protection and positioned at the liner layer and centre enhancing
Adhesive linkage between layer, between the middle reinforcement layer and the external protection；
The liner layer is high-density polyethylene layer；
The middle reinforcement layer includes reinforcing fiber band, which twines perpendicular to the direction of the tube body axis
It is wound on the outside of the liner layer, the reinforcing fiber band is by superhigh molecular weight polyethylene fibers along fiber strip length direction and fiber bandwidth
Degree direction weaves；
The external protection is high-density polyethylene layer；
The adhesive linkage is to weld to be integrated with the high-density polyethylene layer, middle reinforcement layer under less than or equal to 125 degrees Celsius
And form the low density polyethylene layer of crystallization；
The connection structure A of one section of pressure pipe can realize the pipe with the connection structure B cooperations of another section of pressure pipe
Pipeline is connected and composed between body；
Described method includes following steps：
S1, reinforcing fiber band is prepared：Fibre bundle is made with superhigh molecular weight polyethylene fibers, multiple fibre beam is pressed into steel wire rope system
It is twisted cordage as technique, cordage is woven into reinforcing fiber band along fiber strip length direction and fiber bandwidth direction；
S2, liner layer is made：The high density polyethylene (HDPE) band of molten state is wound into fusion molding liner layer on core model；
S3, middle reinforcement layer is made：It squeezes out molten state low density polyethylene (LDPE) and is wrapped in formation low-density on the liner layer and gather
Pvdf layer ensures that the molten state low density polyethylene (LDPE) temperature is less than or equal to 125 degree Celsius, by the reinforcing fiber band with its length
Direction is wrapped in perpendicular to the direction of the tube body axis on the outside of low density polyethylene layer, and low density polyethylene layer forms crystallization；
S4, external protection is made：It squeezes out molten state low density polyethylene (LDPE) and is wrapped in the middle reinforcement layer and form low-density
Polyethylene layer two ensures that the molten state low density polyethylene (LDPE) temperature is less than or equal to 125 degree Celsius, by the high-density polyethylene of molten state
Alkene band is wrapped in fusion molding external protection on the low density polyethylene layer two, and low density polyethylene layer two forms crystallization, obtains
To tube body；
S5, connection structure A and connection structure B is made：Connection structure A is made in tube body one end, makes and connects in the tube body other end
Structure B；One or both of connection structure A, connection structure B are made of high density polyethylene (HDPE) band or connection structure A, connection knot
One or both of structure B makes internal layer using high density polyethylene (HDPE) band, is made of low density polyethylene (LDPE) and the reinforcing fiber band
Middle reinforcement layer makes external protection using low density polyethylene (LDPE) and high density polyethylene (HDPE).
8. pressure pipe manufacturing method as claimed in claim 6, which is characterized in that the middle reinforcement layer increases including at least two layers
Strong fiber band, includes adhesive linkage two between two layers of reinforcing fiber band, the adhesive linkage two be under less than or equal to 125 degrees Celsius with
The reinforcing fiber band melting dissolving is connected in one and forms the low density polyethylene layer of crystallization；
The method step S3 includes：Between two layers of reinforcing fiber band, adhesive linkage is made with molten state low density polyethylene (LDPE)
Two, ensure that adhesive linkage two is to be connected in one with the melting dissolving of reinforcing fiber band under less than or equal to 125 degrees Celsius and form crystallization.
9. pressure pipe manufacturing method as claimed in claim 7 or 8, which is characterized in that the connection structure A, connection structure B are adopted
With such as lower structure：The connection structure A includes the flange A and taper insert port being arranged in described tube body one end end, the company
Binding structure B include be arranged tube body other end end flange B and protrude from the insertion ends of flange B connecting end surfaces；One
Duan Suoshu enhances the flange A of polyethylene pressure pipe and taper insert port can be with the flange of another section of enhancing polyethylene pressure pipe
B and insertion end cooperation realize two sections of enhancing polyethylene by connecting bolt and the sealing element being sleeved in the insertion end
Pressure pipe is tightly connected；
The method step S5 includes：Using taper insert port described in taper insert port modelling, flange A, flange B method
After blue disk body completes, flange bolt hole is processed.
10. pressure pipe manufacturing method as claimed in claim 7 or 8, which is characterized in that the connection structure A, connection structure B
Using such as lower structure：The connection structure A includes the annular convex platform A and taper insert port being arranged in described tube body one end end,
The connection structure B include be arranged tube body other end end annular convex platform B and protrude from the connecting pins annular convex platform B
The insertion end in face；One section of annular convex platform A for enhancing polyethylene pressure pipe and taper insert port can be with another section of enhancings
The annular convex platform B and insertion end of polyethylene pressure pipe coordinate, can by what is coordinated respectively with the annular convex platform A, annular convex platform B
Dismounting flange, the sealing element being sleeved in the insertion end and connection bolt realize two sections of enhancing polyethylene pressure pipe sealings
Connection；
The method step S5 includes：Using taper insert port described in taper insert port modelling.
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| CN201810256153 | 2018-03-27 | ||
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