CN114877150A - Rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure - Google Patents
Rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure Download PDFInfo
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- CN114877150A CN114877150A CN202210639611.5A CN202210639611A CN114877150A CN 114877150 A CN114877150 A CN 114877150A CN 202210639611 A CN202210639611 A CN 202210639611A CN 114877150 A CN114877150 A CN 114877150A
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 124
- 238000007789 sealing Methods 0.000 title claims abstract description 113
- 239000002131 composite material Substances 0.000 title claims abstract description 90
- -1 polyethylene Polymers 0.000 title claims abstract description 88
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 88
- 238000002844 melting Methods 0.000 title claims abstract description 79
- 230000008018 melting Effects 0.000 title claims abstract description 79
- 210000001503 joint Anatomy 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 238000005485 electric heating Methods 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 238000010309 melting process Methods 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 64
- 230000003014 reinforcing effect Effects 0.000 claims description 50
- 239000000853 adhesive Substances 0.000 claims description 35
- 230000006835 compression Effects 0.000 claims description 33
- 238000007906 compression Methods 0.000 claims description 33
- 239000011241 protective layer Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000003723 Smelting Methods 0.000 claims description 11
- 239000002390 adhesive tape Substances 0.000 claims description 11
- 239000004831 Hot glue Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 20
- 230000037431 insertion Effects 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
- F16L47/03—Welded joints with an electrical resistance incorporated in the joint
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
-
- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
- F16L47/10—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket the sealing rings being maintained in place by additional means
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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
- 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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention provides a rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure, which relates to the technical field of polyethylene composite pipes and comprises an electric melting polyethylene composite pipe and a steel wire mesh reinforced polyethylene composite pipe, wherein a first inserting end is arranged at the end part of the electric melting polyethylene composite pipe, an electric heating melting region is arranged on the inner side wall of the first inserting end, a pressing ring is arranged at the end edge of the first inserting end, a first sealing ring is clamped between the pressing ring and the end edge of the first inserting end, and the steel wire mesh reinforced polyethylene composite pipe is provided with a second inserting end. The second inserting end is inserted into the first inserting end and is integrated with the first inserting end through an electric hot melting process, so that the butted pipeline has strong environment adaptability; the first sealing ring is abutted against the outer side wall of the second inserting end, and the electric heating melting zone is isolated from the external environment by the first sealing ring, so that the sealing effect is good; first sealing washer compresses tightly through the clamp ring, and whole seal structure is simple, and first sealing washer and clamp ring need not to go deep into the inside installation of body of pipe, simple to operate.
Description
Technical Field
The invention relates to the technical field of polyethylene composite pipes, in particular to a rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure.
Background
The polyethylene composite pipe is prepared by respectively plasticizing and melting two kinds of polyethylene resin with different densities by two extruders at the same time, and then extruding the molten plastic into a mold capable of forming the composite pipe, wherein the formed pipe is the polyethylene composite pipe. The composite pipe can be extruded and compounded by various plastics, and the pipe formed by compounding high-density polyethylene and low-density polyethylene has the characteristics of raw materials, and has better pressure resistance and corrosion resistance than common polyethylene pipes.
However, the polyethylene composite pipe is found to have poor sealing performance at the butt joint part in the long-term use process, and the phenomena of running, dripping and leakage are serious, thereby seriously causing the waste of resources. Therefore, how to provide a rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure with excellent sealing performance is a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure, and the butt joint part of the rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure has a good sealing effect.
The embodiment of the invention is realized by the following steps:
some embodiments of the invention provide a rubber ring electric smelting double-seal polyethylene composite pipe butt joint structure, which comprises an electric smelting polyethylene composite pipe and a steel wire mesh reinforced polyethylene composite pipe;
the end part of the electric melting polyethylene composite pipe is provided with a first inserting end, the inner side wall of the first inserting end is provided with an electric heating melting region, the outer side wall of the first inserting end is provided with an electric melting connecting column communicated with the electric heating melting region, the end edge of the first inserting end is provided with a compression ring, and a first sealing ring is clamped between the compression ring and the end edge of the first inserting end;
the outer side wall of the steel wire mesh reinforced polyethylene composite pipe is wrapped with a PE layer, the steel wire mesh reinforced polyethylene composite pipe is provided with a second inserting end, the outer side wall of the second inserting end is provided with a self-adhesive reinforcing belt arranged around the PE layer, and the self-adhesive reinforcing belt and the end part of the second inserting end are arranged at intervals;
the tip of second grafting end is worn to establish excessive compression ring and is pegged graft in the inside of first grafting end, and the PE layer passes through electric heat melting technology fixed connection with the electric heat melting zone, and self-adhesion reinforcing area deviates from the lateral wall butt of first grafting end with the clamp ring, the interior edge of first sealing washer and the lateral wall butt of second grafting end.
In some embodiments of the invention, the steel wire mesh reinforced polyethylene composite pipe comprises a core pipe and a steel wire reinforcing layer which are sequentially arranged from inside to outside, and the PE layer wraps the outer side of the steel wire reinforcing layer;
all be provided with the hot melt adhesive layer between core pipe and the steel wire enhancement layer, between steel wire enhancement layer and the PE layer, the steel wire enhancement layer passes through the hot melt adhesive layer and bonds fixedly with the core pipe, and the PE layer passes through the hot melt adhesive layer and bonds fixedly with the steel wire enhancement layer.
In some embodiments of the invention, the outer side wall of the steel wire mesh reinforced polyethylene composite pipe is wrapped with a PP protective layer, and the PP protective layer is located on one side of the self-adhesive reinforced belt, which is far away from the compression ring.
In some embodiments of the present invention, the clamping device further comprises a plurality of fixing bolts, the clamping ring is connected to the first plugging end through the plurality of fixing bolts, and the plurality of fixing bolts are uniformly distributed around the clamping ring;
the first sealing ring has elasticity, is located the inside one side setting of fixing bolt orientation first grafting end of first sealing ring, the epitaxial and fixing bolt's of first sealing ring lateral wall butt.
In some embodiments of the invention, the self-adhesive reinforcing tape is a tape adhesive tape of PE material, a tape adhesive tape of fiberglass material, a tape adhesive tape of PVC material or a tape adhesive tape of stainless steel material.
In some embodiments of the present invention, the inner sidewall of the first inserting end is provided with a bearing and stopping ring, the electric melting region is located between the first sealing ring and the bearing and stopping ring, and the end of the second inserting end abuts against the bearing and stopping ring.
In some embodiments of the present invention, an annular sealing groove is formed in an inner sidewall of the first inserting end, the annular sealing groove is located between the electrothermal fusion zone and the bearing ring, a second sealing ring is disposed in the annular sealing groove, and the second sealing ring abuts against an outer sidewall of the second inserting end.
In some embodiments of the present invention, the outer sidewall of the first mating end is provided with a ridge disposed opposite the annular seal groove.
In some embodiments of the present invention, the plug further comprises a third sealing ring, and the third sealing ring is arranged to block an outer circumferential gap between the compression ring and the first plugging end edge.
In some embodiments of the present invention, an outer diameter of the compression ring is greater than an outer diameter of the first plugging end, a shielding wall is disposed around the electric smelting terminal, and the third sealing ring is clamped between the compression ring and the shielding wall.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
the invention provides a rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure, which comprises an electric melting polyethylene composite pipe and a steel wire mesh reinforced polyethylene composite pipe; the end part of the electric melting polyethylene composite pipe is provided with a first inserting end, the inner side wall of the first inserting end is provided with an electric heating melting region, the outer side wall of the first inserting end is provided with an electric melting connecting column communicated with the electric heating melting region, the end edge of the first inserting end is provided with a compression ring, and a first sealing ring is clamped between the compression ring and the end edge of the first inserting end; the outer side wall of the steel wire mesh reinforced polyethylene composite pipe is wrapped with a PE layer, the steel wire mesh reinforced polyethylene composite pipe is provided with a second inserting end, the outer side wall of the second inserting end is provided with a self-adhesive reinforcing belt arranged around the PE layer, and the self-adhesive reinforcing belt and the end part of the second inserting end are arranged at intervals; the second end of pegging graft wears to locate the clamp ring and plug in the inside of first end of pegging graft, and the PE layer passes through electric heat melting technology fixed connection with the electric heat melting zone, and self-adhesion reinforcing area deviates from the lateral wall butt of first end of pegging graft with the clamp ring, and the interior edge of first sealing washer is pegged graft the lateral wall butt of end with the second.
The second inserting end of the steel wire mesh reinforced polyethylene composite pipe is inserted into the first inserting end of the electric melting polyethylene composite pipe and is integrated with the pipe body through an electric melting process, so that the butted pipeline has strong environment adaptability; the first sealing ring is abutted against the outer side wall of the second insertion end, a gap between the second insertion end and the first insertion end is blocked by the first sealing ring, the electric heating melting zone is isolated from the external environment, and the sealing effect is good; first sealing washer compresses tightly through the clamp ring, and whole seal structure is simple, and first sealing washer and clamp ring need not to go deep into the inside of electric smelting polyethylene composite pipe and install simple to operate. The self-adhesion reinforcing belt can avoid the bulge phenomenon at the corresponding position during hot melting heating, thereby increasing the stability of the joint and improving the bearing capacity of the joint. Meanwhile, the self-adhesive reinforcing belt is abutted against the side wall of the pressing ring, which is away from the first inserting end, so that the inserting depth of the second inserting end is limited. When the distance between the self-adhesive reinforcing belt and the end edge of the second inserting end is a standardized design value, the arrangement can enable the insertion of the steel wire mesh reinforced polyethylene composite pipe to be deeply standardized, and facilitates the length design of the steel wire mesh reinforced polyethylene composite pipe.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a cross-sectional view of an overall structure of a first butt joint structure of an electric melting polyethylene composite pipe and a steel wire mesh reinforced polyethylene composite pipe according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a first configuration of a steel wire mesh reinforced polyethylene composite pipe according to an embodiment of the present invention;
FIG. 3 is a sectional view of a second structure of a steel wire mesh reinforced polyethylene composite pipe according to an embodiment of the present invention;
fig. 4 is a sectional view of an overall structure of a second butt joint structure of an electric melting polyethylene composite pipe and a steel wire mesh reinforced polyethylene composite pipe according to an embodiment of the present invention.
Icon: 100-electric melting polyethylene composite pipe; 200-steel wire mesh reinforced polyethylene composite pipe; 1-a first plug end; 2-electric heating melting zone; 3-electric melting binding posts; 4-a compression ring; 5-a first sealing ring; 6-a second plug end; 7-PE layer; 8-self-adhesive reinforcing tape; 9-a core tube; 10-a steel wire reinforcement layer; 11-a hot melt adhesive layer; 12-PP protective layer; 13-fixing the bolt; 14-a rubber layer; 15-a bearing ring; 16-annular seal groove; 17-a second sealing ring; 18-the ridge; 19-a third sealing ring; 20-shielding wall.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Please refer to fig. 1-4.
The embodiment provides a rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure, which comprises an electric melting polyethylene composite pipe 100 and a steel wire mesh reinforced polyethylene composite pipe 200; the end part of the electric melting polyethylene composite pipe 100 is provided with a first plug-in end 1, the inner side wall of the first plug-in end 1 is provided with an electric melting zone 2, the outer side wall of the first plug-in end 1 is provided with an electric melting connecting column 3 communicated with the electric melting zone 2, the end edge of the first plug-in end 1 is provided with a compression ring 4, and a first sealing ring 5 is clamped between the compression ring 4 and the end edge of the first plug-in end 1; the outer side wall of the steel wire mesh reinforced polyethylene composite pipe 200 is wrapped with a PE layer 7, the outer side wall of the steel wire mesh reinforced polyethylene composite pipe 200 is provided with a second inserting end 6, the outer side wall of the second inserting end 6 is provided with a self-adhesive reinforcing belt 8 arranged around the PE layer 7, and the self-adhesive reinforcing belt 8 and the end part of the second inserting end 6 are arranged at intervals; the tip of second grafting end 6 is worn to establish excessive compression ring 4 and is pegged graft in the inside of first grafting end 1, and PE layer 7 passes through electric heat melting technology fixed connection with electric heat melting zone 2, and self-adhesion reinforcing area 8 deviates from the lateral wall butt of first grafting end 1 with clamp ring 4, and the outer wall butt of end 6 is pegged graft with the second to interior edge of first sealing washer 5.
In this embodiment, based on fig. 1, the clamp ring 4 is a steel ring, and the portion of the steel wire mesh reinforced polyethylene composite pipe 200 located in the self-adhesive reinforcing tape 8 and the portion of the self-adhesive reinforcing tape 8 facing the first splicing end 1 are combined into the second splicing end 6. The end of the second plug end 6 is inserted into the first plug end 1 by penetrating the over-pressure ring 4, and the PE layer 7 of the second plug end 6 is integrated with the first plug end by an electric hot melting process, so that the butt-jointed pipeline has strong environment adaptability. The outer side wall butt of first sealing washer 5 and second grafting end 6, first sealing washer 5 is pegged graft the gap shutoff between end 6 and the first grafting end 1 with the second to keep apart electric heat melting zone 2 and external environment, sealed effectual. The first seal ring 5 is pressed by the pressing ring 4. Whole seal structure is simple, and first sealing washer 5 and clamp ring 4 need not to go deep into the inside of electric smelting polyethylene composite pipe 100 and install simple to operate. This butt-joint structural component has realized better sealed effect through comparatively simple structural component. In the hot melting heating process, because the pipelines around the electric hot melting zone 2 are also heated, the performance of the joint is reduced, and the joint becomes the weakest point in the pipeline which is most easy to burst after bearing pressure. The self-adhesive reinforcing belt 8 can avoid the bulge phenomenon at the corresponding position during hot melting and heating, thereby increasing the stability of the joint and improving the bearing capacity of the joint. At the same time, the self-adhesive reinforcing strip 8 abuts against the side wall of the compression ring 4 facing away from the first insertion end 1 to limit the insertion depth of the second insertion end. When the distance between the self-adhesive reinforcing belt 8 and the end edge of the second inserting end 6 is a standardized design value, the arrangement can enable the steel wire mesh reinforced polyethylene composite pipe 200 to be deeply inserted into the standardization, and facilitates the length design of the steel wire mesh reinforced polyethylene composite pipe 200.
Preferably, the self-adhesive reinforcing tape 8 is made of PE materials and is provided with adhesive bonding tapes, the distance range of the edge of the self-adhesive reinforcing tape from the second inserting end 6 is 10-20 cm, and the thickness range of the PE layer 7 is 2-20 mm. The specific size needs to be set according to the pipe diameter and connection strength requirements of the electric melting polyethylene composite pipe 100 and the steel wire mesh reinforced polyethylene composite pipe 200.
In other embodiments, the self-adhesive reinforcing tape 8 may also be selected from an adhesive tape of a glass fiber material, an adhesive tape of a PVC material or an adhesive tape of a stainless steel material.
Further, based on fig. 1, the steel wire mesh reinforced polyethylene composite pipe 200 includes a core pipe 9 and a steel wire reinforcing layer 10, which are sequentially arranged from inside to outside, and the PE layer 7 is wrapped on the outer side of the steel wire reinforcing layer 10; the hot melt adhesive layers 11 are arranged between the core pipe 9 and the steel wire reinforcing layer 10 and between the steel wire reinforcing layer 10 and the PE layer 7, the steel wire reinforcing layer 10 is fixedly bonded with the core pipe 9 through the hot melt adhesive layers 11, and the PE layer 7 is fixedly bonded with the steel wire reinforcing layer 10 through the hot melt adhesive layers 11.
Further, based on fig. 1, the outer side wall of the steel wire mesh reinforced polyethylene composite pipe 200 is wrapped with a PP protective layer 12, and the PP protective layer 12 is located on one side of the self-adhesive reinforcing strip 8 away from the clamp ring 4.
In this embodiment, based on fig. 2, a PP protective layer 12 is wrapped on the outer side of the PE layer 7, and a self-adhesive reinforcing tape 8 is disposed around the outer side of the PP protective layer 12. When the first inserting end 1 needs to be in butt joint with the second inserting end 6, the PP protective layer 12 between the self-adhesion reinforcing belt 8 and the end part of the second inserting end 6 is stripped off by tools such as an art designer knife and the like to expose the PE layer 7, and the PE layer 7 is fixed with the electrothermal fusion zone 2 through an electrothermal fusion process after being inserted into the first inserting end 1.
In the above embodiment, the thickness of the PP protective layer 12 is preferably 0.05 to 10 mm. The PP protective layer 12 can prevent ultraviolet irradiation and aging, and can also prevent scratches in the transportation process and influence the stability of the composite pipe.
In other embodiments than the above, based on fig. 3, the self-adhesive reinforcing tape 8 is disposed around the outside of the PE layer 7, and the PP protective layer 12 wraps the PE layer 7 and the self-adhesive reinforcing tape 8 at the same time. When the first inserting end 1 needs to be in butt joint with the second inserting end 6, the PP protective layer 12 between the self-adhesive reinforcing tape 8 and the end part of the second inserting end 6 is stripped off by tools such as an art designer knife and the like to expose the PE layer 7.
Further, based on fig. 1, the connector further includes a plurality of fixing bolts 13, the clamp ring 4 is connected to the first plug end 1 through the plurality of fixing bolts 13, and the plurality of fixing bolts 13 are uniformly distributed around the clamp ring 4; the first sealing ring 5 has elasticity, the first sealing ring 5 is arranged on one side of the fixing bolt 13 facing the inside of the first inserting end 1, and the extension of the first sealing ring 5 is abutted to the side wall of the fixing bolt 13.
In this embodiment, six bolt holes are uniformly formed around the compression ring 4, and the compression ring 4 is connected with the end of the first inserting end 1 through six fixing bolts 13, so that the connection strength of the compression ring 4 is uniform. In other embodiments, the number of the fixing bolts 13 may be four or eight, etc. according to the pipe diameter of the pipe body and the requirement of the connection strength.
Preferably, based on fig. 1, the first sealing ring 5 is a rubber ring with elasticity, and all the fixing bolts 13 are arranged to be attached to the outer peripheral edge of the first sealing ring 5. At this moment, the first sealing ring 5 is simultaneously limited by the edge of the first insertion end, the compression ring 4 and the fixing bolt 13, and the stability of the first sealing ring 5 is ensured. Insert the in-process that the end inserted the first end that inserts at the second, fixing bolt 13 can limit the periphery of first sealing washer 5 to a certain extent and take place elastic deformation towards the direction that deviates from the second and insert the end, and fixing bolt 13 plays a hold-down action to first sealing washer 5 for the hold-down action between the end lateral wall is inserted to first sealing washer 5 and second is stronger, and sealed effect is better.
In another embodiment except the above embodiment, as shown in fig. 4, the first seal ring 5 is a steel ring, the rubber layer 14 is provided on the inner side wall of the first seal ring 5, and the rubber layer 14 abuts against the outer side wall of the second insertion end. The fixing bolt 13 is sequentially arranged through the compression ring 4 and the first sealing ring 5 and finally screwed on the end edge of the first inserting end 1. This arrangement provides a high strength seal assembly.
Further, based on fig. 1 shows, the inside wall of first grafting end 1 is provided with holds the ring 15, and electric heat melts the district 2 and is located between first sealing washer 5 and the ring 15 that holds, and the tip of second grafting end 6 and the ring 15 butt that holds. The retaining ring 15 cooperates with the self-adhesive reinforcing strip 8 for limiting the depth to which the second insertion end extends into the first insertion end, so that the first insertion end and the second insertion end are mutually limited.
Further, based on fig. 1, an annular seal groove 16 is formed in the inner side wall of the first insertion end 1, the annular seal groove 16 is located between the electrothermal melting zone 2 and the bearing ring 15, a second seal ring 17 is arranged in the annular seal groove 16, and the second seal ring 17 is abutted to the outer side wall of the second insertion end 6.
In the present embodiment, the second seal ring 17 is also a rubber seal ring. The second sealing ring 17 serves as another sealing structure for sealing the gap between the second insertion end and the first insertion end. The annular sealing groove 16 is located between the electric heating melting zone 2 and the bearing ring 15, namely the electric heating melting zone 2 is located between the first sealing ring 5 and the second sealing ring 17, so that two sides of the hot melting connection part are sealed, and the sealing effect is enhanced.
Further, based on fig. 1, the outer side wall of the first plug end 1 is provided with a ridge 18 disposed opposite to the annular seal groove 16.
In the present embodiment, the annular sealing groove 16 reduces the wall thickness of the first plugging end 1 at the annular sealing groove 16, which reduces the strength. The outer side wall of the first plug end 1 is provided with a ridge 18 arranged opposite to the annular sealing groove 16 to thicken the wall thickness of the first plug end 1 at this point, so as to ensure the strength of the first plug end.
Preferably, the size of the ridge 18 ensures that the wall thickness of the first plug end 1 at the annular sealing groove 16 is the same as that of the rest of the fused polyethylene composite pipe 100, so as to ensure uniform strength everywhere.
Further, based on fig. 1, the sealing device further comprises a third sealing ring 19, and the third sealing ring 19 is arranged to block the peripheral gap between the compression ring 4 and the end edge of the first inserting end 1.
In this embodiment, the third sealing ring 19 is also a rubber sealing ring, and the third sealing ring 19 seals the periphery of the gap between the pressing ring 4 and the first inserting end 1, so as to prevent foreign matters from entering the gap, prevent the foreign matters from corroding the fixing bolt 13 and the first sealing ring 5, and prolong the service life of the whole fused polyethylene composite pipe 100.
Further, based on fig. 1, the outer diameter of the compression ring 4 is larger than the outer diameter of the first plug end 1, a shielding wall 20 is arranged in the circumferential direction of the electric-fusion wire column 3, and the third sealing ring 19 is clamped between the compression ring 4 and the shielding wall 20.
In this embodiment, the outer diameter of clamp ring 4 is greater than the outer diameter of the plug end, and third sealing ring 19 is attached to clamp ring 4 to prevent third sealing ring 19 from falling off from the end. The shielding wall 20 limits the position of the electric smelting binding post 3 to ensure that the position of the electric smelting binding post can block the peripheral gap between the compression ring 4 and the plugging end edge.
In summary, the present invention provides a rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure, which includes an electric melting polyethylene composite pipe 100 and a steel wire mesh reinforced polyethylene composite pipe 200; the end part of the electric melting polyethylene composite pipe 100 is provided with a first plug-in end 1, the inner side wall of the first plug-in end 1 is provided with an electric melting zone 2, the outer side wall of the first plug-in end 1 is provided with an electric melting connecting column 3 communicated with the electric melting zone 2, the end edge of the first plug-in end 1 is provided with a compression ring 4, and a first sealing ring 5 is clamped between the compression ring 4 and the end edge of the first plug-in end 1; the outer side wall of the steel wire mesh reinforced polyethylene composite pipe 200 is wrapped with a PE layer 7, the steel wire mesh reinforced polyethylene composite pipe 200 is provided with a second inserting end 6, the outer side wall of the second inserting end 6 is provided with a self-adhesive reinforcing belt 8 surrounding the PE layer 7, and the self-adhesive reinforcing belt 8 and the end part of the second inserting end 6 are arranged at intervals; the tip of second grafting end 6 is worn to establish excessive compression ring 4 and is pegged graft in the inside of first grafting end 1, and PE layer 7 passes through electric heat melting technology fixed connection with electric heat melting zone 2, and self-adhesion reinforcing area 8 deviates from the lateral wall butt of first grafting end 1 with clamp ring 4, and the outer wall butt of end 6 is pegged graft with the second to interior edge of first sealing washer 5.
The second inserting end 6 of the steel wire mesh reinforced polyethylene composite pipe 200 is inserted into the first inserting end 1 of the electric melting polyethylene composite pipe 100 and is integrated with the pipe body through an electric melting process, so that the butted pipeline has strong environment adaptability; the first sealing ring 5 is abutted against the outer side wall of the second inserting end 6, the first sealing ring 5 blocks a gap between the second inserting end 6 and the first inserting end 1 and isolates the electric melting zone 2 from the external environment, and the sealing effect is good; first sealing washer 5 compresses tightly through clamp ring 4, and whole seal structure is simple, and first sealing washer 5 and clamp ring 4 need not to go deep into the inside of electric smelting polyethylene composite pipe 100 and install simple to operate. The self-adhesive reinforcing belt 8 can avoid the bulge phenomenon at the corresponding position during hot melting and heating, thereby increasing the stability of the joint and improving the bearing capacity of the joint. At the same time, the self-adhesive reinforcing strip 8 abuts against the side wall of the compression ring 4 facing away from the first insertion end 1 to limit the insertion depth of the second insertion end. When the distance between the self-adhesive reinforcing belt 8 and the end edge of the second inserting end 6 is a standardized design value, the arrangement can enable the steel wire mesh reinforced polyethylene composite pipe 200 to be deeply inserted into the standardization, and facilitates the length design of the steel wire mesh reinforced polyethylene composite pipe 200.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure is characterized by comprising an electric melting polyethylene composite pipe and a steel wire mesh reinforced polyethylene composite pipe;
the end part of the electric melting polyethylene composite pipe is provided with a first inserting end, the inner side wall of the first inserting end is provided with an electric heating melting zone, the outer side wall of the first inserting end is provided with an electric melting connecting wire column communicated with the electric heating melting zone, the end edge of the first inserting end is provided with a compression ring, and a first sealing ring is clamped between the compression ring and the end edge of the first inserting end;
the outer side wall of the steel wire mesh reinforced polyethylene composite pipe is wrapped with a PE layer, the steel wire mesh reinforced polyethylene composite pipe is provided with a second inserting end, the outer side wall of the second inserting end is provided with a self-adhesive reinforcing belt arranged around the PE layer, and the self-adhesive reinforcing belt and the end part of the second inserting end are arranged at intervals;
the end part of the second inserting end penetrates through the pressing ring and is inserted in the first inserting end, the PE layer and the electric heating melting region are fixedly connected through an electric heating melting process, the self-adhesive reinforcing belt and the pressing ring deviate from the side wall butt of the first inserting end, and the inner edge of the first sealing ring is abutted to the side wall of the second inserting end.
2. The rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure according to claim 1, wherein the steel wire mesh reinforced polyethylene composite pipe comprises a core pipe and a steel wire reinforcing layer which are sequentially arranged from inside to outside, and the PE layer is wrapped on the outer side of the steel wire reinforcing layer;
the core pipe with between the steel wire enhancement layer with all be provided with the hot melt adhesive layer between the PE layer, the steel wire enhancement layer passes through the hot melt adhesive layer with the core pipe bonds fixedly, the PE layer passes through the hot melt adhesive layer with the steel wire enhancement layer bonds fixedly.
3. The rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure according to claim 1, wherein a PP protective layer is wrapped on an outer side wall of the steel wire mesh reinforced polyethylene composite pipe, and the PP protective layer is located on a side, away from the compression ring, of the self-adhesive reinforcing belt.
4. The rubber ring electric smelting double-sealing polyethylene composite pipe butt joint structure according to claim 1, further comprising a plurality of fixing bolts, wherein the clamp ring is connected with the first inserting end through the plurality of fixing bolts, and the plurality of fixing bolts are evenly distributed around the clamp ring;
the first sealing ring is elastic, the first sealing ring is located on one side, facing the inside of the first inserting end, of the fixing bolt, and the extension of the first sealing ring is abutted to the side wall of the fixing bolt.
5. The butt joint structure of rubber ring electric melting double-sealing polyethylene composite pipes as claimed in claim 1, wherein the self-adhesive reinforcing tape is a PE material adhesive tape, a glass fiber material adhesive tape, a PVC material adhesive tape or a stainless steel material adhesive tape.
6. The rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure according to claim 1, wherein a bearing and stopping ring is arranged on an inner side wall of the first inserting end, the electric melting zone is located between the first sealing ring and the bearing and stopping ring, and an end portion of the second inserting end abuts against the bearing and stopping ring.
7. The rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure according to claim 6, wherein an annular sealing groove is formed in an inner side wall of the first inserting end, the annular sealing groove is located between the electric melting zone and the bearing and stopping ring, a second sealing ring is arranged in the annular sealing groove, and the second sealing ring is abutted against an outer side wall of the second inserting end.
8. The rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure according to claim 7, wherein the outer side wall of the first inserting end is provided with a convex ridge arranged opposite to the annular sealing groove.
9. The rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure according to claim 1, further comprising a third sealing ring, wherein the third sealing ring seals an outer circumferential gap between the compression ring and the first plugging end edge.
10. The rubber ring electric smelting double sealing polyethylene composite pipe butt joint structure according to claim 9, wherein the outer diameter of the compression ring is larger than the outer diameter of the first inserting end, a shielding wall is arranged on the circumference of the electric smelting terminal, and the third sealing ring is clamped between the compression ring and the shielding wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210639611.5A CN114877150A (en) | 2022-06-07 | 2022-06-07 | Rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210639611.5A CN114877150A (en) | 2022-06-07 | 2022-06-07 | Rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure |
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| CN114877150A true CN114877150A (en) | 2022-08-09 |
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| CN202210639611.5A Pending CN114877150A (en) | 2022-06-07 | 2022-06-07 | Rubber ring electric melting double-sealing polyethylene composite pipe butt joint structure |
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| CN (1) | CN114877150A (en) |
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Application publication date: 20220809 |