CN213145730U - HDPE (high-density polyethylene) pipe structure connected with heat-shrinkable belt - Google Patents
HDPE (high-density polyethylene) pipe structure connected with heat-shrinkable belt Download PDFInfo
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- CN213145730U CN213145730U CN202022113054.2U CN202022113054U CN213145730U CN 213145730 U CN213145730 U CN 213145730U CN 202022113054 U CN202022113054 U CN 202022113054U CN 213145730 U CN213145730 U CN 213145730U
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Abstract
The application relates to a heat-shrinkable belt connected HDPE (high-density polyethylene) pipe structure which comprises a heat-shrinkable belt and two pipe bodies, wherein one ends of the two pipe bodies are connected with each other, the heat-shrinkable belt is wound at the butting position of the two pipe bodies and is bonded with the two pipe bodies through heating, and the length of the heat-shrinkable belt is greater than the perimeter of the pipe bodies; the heat-shrinkable belt comprises a hot melt adhesive layer, a fiber reinforced layer and a heat-shrinkable layer from inside to outside. This application has the intensity that the fibre reinforcement layer can effectively promote pyrocondensation layer to make the pyrocondensation area that the installation is good can bear bigger intensity, this receives external force at the pipeline and pulls or when striking, and pyrocondensation area still can keep intact, further promotes the steadiness that pyrocondensation area and body are connected.
Description
Technical Field
The application relates to the field of pipe connecting materials, in particular to a heat-shrinkable belt connecting HDPE pipe structure.
Background
HDPE pipe is a pipe made of high density polyethylene. The HDPE pipe not only has good economical efficiency, but also has a series of advantages of stable and reliable interface, impact resistance, cracking resistance, aging resistance, corrosion resistance and the like.
The heat-shrinkable belt is designed for corrosion prevention of welded junctions of buried and overhead steel pipelines and heat-insulating joint coating of heat-insulating pipelines. The hot melt adhesive is compounded by a thermal shrinkage layer base material and a hot melt adhesive, and the hot melt adhesive can form good adhesion with the thermal shrinkage layer base material, the surface of the steel pipe and a solid epoxy coating. The heat-shrinkable belt is called as a loop in the industry, and is relatively called as a dead loop of the heat-shrinkable sleeve, namely, the width of the heat-shrinkable belt is the same as that of a repaired mouth, then a layer of heat-shrinkable belt is wound at the repaired mouth, and then two ends are connected. The heat-shrinkable sleeve can only be used for pipelines with pipe diameters matched with each other, the heat-shrinkable belt can be used for pipelines with various pipe diameters, namely, the heat-shrinkable belt can be matched with the pipelines by winding a circle along the pipelines when in use, and therefore, the heat-shrinkable belt is high in use flexibility.
Aiming at the related technologies, the inventor thinks that the existing HDPE pipe and the heat-shrinkable belt have poor connection firmness, and the phenomena of deviation and corrosion prevention failure in advance occur in the pipeline connection due to the fact that the heat-shrinkable belt is damaged easily.
SUMMERY OF THE UTILITY MODEL
In order to improve the current relatively poor problem of the fastness of connection in HDPE pipe and pyrocondensation area, this application provides a pyrocondensation area connection HDPE pipe structure.
The application provides a pyrocondensation area connects HDPE tubular construction adopts following technical scheme:
a heat-shrinkable belt connected HDPE (high-density polyethylene) pipe structure comprises a heat-shrinkable belt and two pipes, wherein one ends of the two pipes are connected with each other, the heat-shrinkable belt is wound at the abutting position of the two pipes and is bonded with the two pipes through heating, and the length of the heat-shrinkable belt is greater than the circumference of the pipes; the heat-shrinkable belt comprises a hot melt adhesive layer, a fiber reinforced layer and a heat-shrinkable layer from inside to outside.
By adopting the technical scheme, the thermal shrinkage belt is used for winding and protecting the joint of the two pipe bodies, the hot melt adhesive layer is melted by heating and is bonded with the two pipe bodies, and meanwhile, the thermal shrinkage layer and the fiber reinforced layer are shrunk and tightly coated on the joint of the two pipe bodies, so that a firm anti-corrosion body is formed outside the pipeline, and the pipe has excellent wear resistance, corrosion resistance, impact resistance and good ultraviolet resistance and light aging resistance; simultaneously the intensity on pyrocondensation layer can effectively be promoted to the fibre reinforcement layer to make the pyrocondensation area of installing can bear bigger intensity, this receives external force at the pipeline and pulls or when striking, and pyrocondensation area still can keep intact, further promotes the steadiness that pyrocondensation area and body are connected.
Preferably, a primer layer is arranged at the position where the two pipe bodies abut against the heat-shrinkable belt.
Through adopting above-mentioned technical scheme, the primer layer set up the effectual adhesive force that has promoted the pyrocondensation area, and then promote the stability of being connected between pyrocondensation area and the body, effectively strengthened the anticorrosive and sealed protective properties in pyrocondensation area simultaneously.
Preferably, two ends of the heat-shrinkable belt in the winding direction are respectively a bonding end and a sealing end, the bonding end is bonded with the joint of the two pipe bodies, the sealing end is bonded on the outer side wall of the heat-shrinkable belt after being wound by the heat-shrinkable belt, and the top of the bonding end is provided with an inclined plane convenient for heat-shrinkable winding.
Through adopting above-mentioned technical scheme, the setting on inclined plane can make the winding inseparabler between pyrocondensation area and the body, and then promotes the regional sealed and corrosion protection of pyrocondensation area and body.
Preferably, a rubber sheet is arranged between the bottom of the bonding end and the joint of the two pipe bodies.
Through adopting above-mentioned technical scheme, the setting of film is convenient for take the inseparable junction of two bodys with constructor pyrocondensation for the pyrocondensation area can closely laminate with tubular product as far as, reduces the air between pyrocondensation area and the body, and the follow-up pyrocondensation area of being convenient for heats and the body is stabilized the bonding.
Preferably, a fixing piece used for reinforcing the heat-shrinkable belt is pasted on the top of the sealing end.
Through adopting above-mentioned technical scheme, the stationary blade is further sealed the seal end in the pyrocondensation area of heating bonding on the body, effectively promotes the stability and the leakproofness that pyrocondensation area and two bodys are connected.
Preferably, the both ends of stationary blade and the common subsides of having on the lateral wall of two bodys cover the gasket, stationary blade and gasket all bond through the heating with the pyrocondensation area material is the same.
Through adopting above-mentioned technical scheme, the setting of gasket is sealed fixed to the stationary blade, and stationary blade and gasket take the same all through heating bonding with pyrocondensation area material, is accomplishing the bonding back of gasket and stationary blade promptly, makes pyrocondensation area, stationary blade and gasket all be heated the shrink and further consolidate and seal tubular product through the heating, effectively promotes the corrosion resisting property of two body junctions.
Preferably, the thickness of the heat-shrinkable belt is 8-13 mm.
By adopting the technical scheme, the thermal shrinkage belt can form a firm anti-corrosion body outside the pipeline, and has excellent wear resistance, corrosion resistance, impact resistance and good ultraviolet resistance and light aging resistance.
Preferably, one end of each of the two connected pipe bodies is connected by hot melting.
Through adopting above-mentioned technical scheme, the connected mode that the hot melt is connected makes two bodys can be stable firm the connection together.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the thermal shrinkage belt is used for winding and protecting the joint of the two pipe bodies, the hot melt adhesive layer is melted and bonded with the two pipe bodies by heating, and meanwhile, the thermal shrinkage layer and the fiber reinforced layer are shrunk and tightly coated on the joint of the two pipe bodies, so that a firm anti-corrosion body is formed outside the pipeline, and the pipe has excellent wear resistance, corrosion resistance, impact resistance and good ultraviolet resistance and light aging resistance; meanwhile, the strength of the thermal shrinkage layer can be effectively improved by the fiber reinforced layer, so that the installed thermal shrinkage belt can bear higher strength, the thermal shrinkage belt can still keep complete when the pipeline is pulled or impacted by external force, and the connection stability of the thermal shrinkage belt and the pipe body is further improved;
2. the primer layer effectively improves the adhesive force of the heat-shrinkable belt, further improves the connection stability between the heat-shrinkable belt and the pipe body, and simultaneously effectively enhances the corrosion resistance and the sealing protection performance of the heat-shrinkable belt;
3. due to the arrangement of the inclined plane, the heat-shrinkable belt and the pipe body can be wound more tightly, and the sealing and corrosion resistance of the heat-shrinkable belt and the pipe body area can be improved;
4. the setting of gasket is sealed fixed the stationary blade, and stationary blade and gasket are the same all through heating the bonding with pyrocondensation area material, promptly in the bonding back of accomplishing gasket and stationary blade, makes pyrocondensation area, stationary blade and gasket all be heated the shrink and further consolidate and seal tubular product through the heating, effectively promotes the corrosion resisting property of two body junctions.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a heat-shrinkable tape-bonded HDPE pipe structure according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a heat-shrinkable tape in an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a pipe body joint and a primer layer in an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of a heat-shrinkable tape bonded HDPE pipe structure according to an embodiment of the present application;
fig. 5 is a partially enlarged schematic view of a portion a in fig. 4.
Description of reference numerals: 1. a pipe body; 2. a heat-shrinkable tape; 21. bonding the end; 211. a bevel; 22. sealing the end; 23. a hot melt layer; 24. a fiber-reinforced layer; 25. a hot melt layer; 3. a film; 4. a fixing sheet; 5. sealing the sheet; 6. a primer layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses 2 HDPE tubular structures of connecting in pyrocondensation area. Referring to fig. 1 and 2, a heat-shrinkable tape 2 connected HDPE pipe structure comprises a heat-shrinkable tape 2 and two pipes 1, wherein one ends of the two pipes 1 are connected with each other in a hot melting manner. The thermal shrinkage belt 2 is wound at the abutting positions of the two pipe bodies 1 and is bonded with the two pipe bodies 1 through heating, the length of the thermal shrinkage belt 2 is larger than the circumference of the pipe bodies 1, and the thickness of the thermal shrinkage belt 2 is 8-13 mm. The heat-shrinkable band 2 comprises, from the inside to the outside, a layer of hot-melt glue 23, a layer of fibrous reinforcement 24 and a layer of heat-shrinkable material 25. The fiber-reinforced layer 24 may be made of nylon, aramid fiber, or glass fiber.
Referring to fig. 1, the thermal shrinkage belt 2 is used for winding and protecting the joint of the two pipe bodies 1, the hot melt adhesive layer 23 is melted by heating and is bonded with the two pipe bodies 1, and meanwhile, the thermal shrinkage layer 25 and the fiber reinforcement layer 24 are tightly wrapped at the joint of the two pipe bodies 1 in a shrinkage mode, so that a firm anticorrosion body is formed outside the pipe bodies 1, and the pipe bodies have excellent wear resistance, corrosion resistance, impact resistance and good ultraviolet resistance and light aging resistance. Simultaneously fiber reinforcement layer 24 can effectively promote pyrocondensation layer 25's intensity to make the pyrocondensation area 2 of installing can bear bigger intensity, this receives external force when dragging or striking at the pipeline, and pyrocondensation area 2 still can keep intact, further promotes the steadiness that pyrocondensation area 2 and body 1 are connected.
Referring to fig. 3, two body 1 and 2 butt departments in pyrocondensation area are equipped with priming paint layer 6, and priming paint layer 6 is formed by the coating of epoxy priming paint, the effectual adhesive force that has promoted pyrocondensation area 2, and then promotes the stability of being connected between pyrocondensation area 2 and the body 1, has effectively strengthened the anticorrosive and sealed protective properties in pyrocondensation area 2 simultaneously.
Referring to fig. 4 and 5, two ends of the heat-shrinkable tape 2 along the winding direction are respectively an adhesive end 21 and a sealing end 22, the joint of the adhesive end 21 and the two pipe bodies 1 is adhered, and the sealing end 22 is adhered to the outer side wall of the heat-shrinkable tape 2 after being wound by the heat-shrinkable tape 2. The top of the bonding end 21 is provided with an inclined plane 211 convenient for thermal shrinkage winding, so that the thermal shrinkage belt 2 and the pipe body 1 can be wound more tightly, and the sealing and corrosion resistance of the thermal shrinkage belt 2 and the pipe body 1 are improved. Be equipped with film 3 between bond end 21 bottom and two body 1 junctions, be convenient for take 2 inseparable windings in the junction of two bodies 1 with constructor pyrocondensation for pyrocondensation takes 2 can closely laminate with tubular product as far as, reduces the air between pyrocondensation area 2 and the body 1, and the follow-up pyrocondensation of being convenient for takes 2 heating and body 1 stable bonding.
Referring to fig. 4 and 5, the top of the sealing end 22 is covered with a fixing sheet 4 for reinforcing the heat-shrinkable belt 2, the solid sheet and the heat-shrinkable belt 2 are made of the same material and are shrunk and contracted through heating bonding, the sealing end 22 of the heat-shrinkable belt 2 bonded on the pipe body 1 through heating is further sealed by the fixing sheet 4, and the connection stability and the connection tightness of the heat-shrinkable belt 2 and the two pipe bodies 1 are effectively improved. Cover at stationary blade 4 and heat pyrocondensation area 2 and stationary blade 4 through the flame gun after accomplishing, adopt the gyro wheel to take 2 and stationary blade 4 to flatten simultaneously for pyrocondensation area 2 and stationary blade 4 closely laminate with the lateral wall of two bodys 1, effectively promote the corrosion resisting property in pyrocondensation area 2.
Referring to fig. 4 and 5, the both ends of stationary blade 4 and the common subsides of having covered sealing strip 5 on the lateral wall of two bodys 1, the material of sealing strip 5 also is unanimous with pyrocondensation area 2, and sealing strip 5 seals fixed to stationary blade 4, promotes the leakproofness of stationary blade 4. Accomplish above-mentioned bonding fixed back at stationary blade 4, heat shrinkage area 2, stationary blade 4 and gasket 5 through the flame gun again, further consolidate and seal tubular product, effectively promote the corrosion resisting property of two 1 junctions of body.
The implementation principle of the embodiment of the application is as follows: the thermal shrinkage belt 2 is used for winding and protecting the joint of the two pipe bodies 1, the hot melt adhesive layer 23 is melted and bonded with the two pipe bodies 1 through heating, meanwhile, the thermal shrinkage layer 25 and the fiber reinforcement layer 24 are tightly wrapped at the joint of the two pipe bodies in a shrinkage mode, a firm anti-corrosion body is formed outside the pipeline, and the thermal shrinkage belt has excellent wear resistance, corrosion resistance, impact resistance and good ultraviolet resistance and light aging resistance. Simultaneously fiber reinforcement layer 24 can effectively promote pyrocondensation layer 25's intensity to make the pyrocondensation area 2 of installing can bear bigger intensity, this receives external force when dragging or striking at the pipeline, and pyrocondensation area 2 still can keep intact, further promotes the steadiness that pyrocondensation area 2 and body 1 are connected.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a HDPE tubular construction is connected in pyrocondensation area (2), its characterized in that: the heat-shrinkable tube comprises a heat-shrinkable belt (2) and two tube bodies (1), wherein one ends of the two tube bodies (1) are connected with each other, the heat-shrinkable belt (2) is wound at the butting position of the two tube bodies (1) and is bonded with the two tube bodies (1) through heating, and the length of the heat-shrinkable belt (2) is greater than the perimeter of the tube bodies (1); the heat-shrinkable belt (2) comprises a hot melt adhesive layer (23), a fiber reinforced layer (24) and a heat-shrinkable layer (25) from inside to outside.
2. A heat-shrinkable tape (2) connecting HDPE pipe structures as claimed in claim 1, characterized in that: and a primer layer (6) is arranged at the joint of the two pipe bodies (1) and the thermal shrinkage belt (2).
3. A heat-shrinkable tape (2) connecting HDPE pipe structures as claimed in claim 1, characterized in that: the hot shrinkage belt (2) is characterized in that a bonding end (21) and a sealing end (22) are respectively arranged at two ends of the hot shrinkage belt (2) in the winding direction, the bonding end (21) is bonded with the joint of the two pipe bodies (1), the sealing end (22) is bonded on the outer side wall of the hot shrinkage belt (2) after the hot shrinkage belt (2) is wound, and an inclined plane (211) convenient for hot shrinkage winding is arranged at the top of the bonding end (21).
4. A heat-shrinkable tape (2) connecting HDPE pipe structures as claimed in claim 3, characterized in that: a film (3) is arranged between the bottom of the bonding end (21) and the joint of the two pipe bodies (1).
5. A heat-shrinkable tape (2) connecting HDPE pipe structures as claimed in claim 3, characterized in that: the top of the sealing end (22) is pasted with a fixing piece (4) used for reinforcing the thermal shrinkage belt (2).
6. A heat-shrinkable tape (2) connecting HDPE pipe structures according to claim 5, characterized in that: the both ends of stationary blade (4) and the common subsides on the lateral wall of two bodys (1) cover have gasket (5), stationary blade (4) and gasket (5) all bond through heating with pyrocondensation area (2) material is the same.
7. A heat-shrinkable tape (2) connecting HDPE pipe structures as claimed in claim 1, characterized in that: the thickness of the heat-shrinkable belt (2) is 8-13 mm.
8. A heat-shrinkable tape (2) connecting HDPE pipe structures as claimed in claim 1, characterized in that: and one ends of the two pipe bodies (1) which are connected with each other are connected by hot melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022113054.2U CN213145730U (en) | 2020-09-23 | 2020-09-23 | HDPE (high-density polyethylene) pipe structure connected with heat-shrinkable belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022113054.2U CN213145730U (en) | 2020-09-23 | 2020-09-23 | HDPE (high-density polyethylene) pipe structure connected with heat-shrinkable belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213145730U true CN213145730U (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022113054.2U Active CN213145730U (en) | 2020-09-23 | 2020-09-23 | HDPE (high-density polyethylene) pipe structure connected with heat-shrinkable belt |
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| Country | Link |
|---|---|
| CN (1) | CN213145730U (en) |
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- 2020-09-23 CN CN202022113054.2U patent/CN213145730U/en active Active
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