CN201715113U - Hot melting connection oxygen resistance composite metal tube - Google Patents
Hot melting connection oxygen resistance composite metal tube Download PDFInfo
- Publication number
- CN201715113U CN201715113U CN200920265175XU CN200920265175U CN201715113U CN 201715113 U CN201715113 U CN 201715113U CN 200920265175X U CN200920265175X U CN 200920265175XU CN 200920265175 U CN200920265175 U CN 200920265175U CN 201715113 U CN201715113 U CN 201715113U
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Abstract
The utility model relates to a pipe used for fluid convey in the industries of water supply and drainage, chemical industry, fire control and the like. The pipe comprises an inner plastic layer, a hot melt adhesive layer, an oxygen resistance layer, a hot melt adhesive layer, a metal layer, a hot melt adhesive layer, a second plastic layer and an external heat solid plastic protection layer which are sequentially arranged from inside to outside, wherein the outer wall of the inner plastic layer and the inner wall of the oxygen resistance layer are bonded together through the hot melt adhesive layer; the outer wall of the oxygen resistance layer and the inner wall of the metal layer are bonded together through the hot melt adhesive layer; the outer wall of the metal layer and the inner wall of the second plastic layer are bonded together through the hot melt adhesive layer; the external heat solid plastic protection layer is arranged at the outside of the plastic layer; and the oxygen resistance layer plays a role in preventing the oxygen from speeding up to seep into the weld joint to oxygenize the weld joint due to the water. The oxygen resistance composite metal tube combines the advantages of a common plastic pipe, an oxygen resistance pipe and a common plastic-matrix steel composite pipe, has the characteristics of high composite strength, high temperature resistance and long service life, and greatly improves the long-time stability in the aspect of conveying hot water.
Description
Technical field
The utility model relates to a kind of tubing that is used for industry conveyance fluids such as plumbing and chemical industry, fire-fighting, but the oxygen-resistant metal composite pipe that especially a kind of hot melt connects.
Background technique
The oxygen transmission rate of most plastics that is used for metal composite pipe at present is all than higher, therefore, existing metal composite pipe, particularly the steel-plastic composite pipe course of conveying that is used for feeding water exists and to be easy to be penetrated into steel pipe seam from inner plastic layer by means of water oxygen, make the weld seam oxidation aggravate, leak thereby the part in short several years, just can occur, a large amount of leakages of transporting water take place when serious.If be used for the delivering hot water, its damage time is shorter, brings very big loss to association area and personnel.
In addition, existing link that is used for metal composite pipe or pipe fitting join strength be lower, be easy to generate leakage, complex operation, and very easily damaging, so using effect and working life are all undesirable.
The model utility content
The purpose of this utility model just is to provide a kind of can be penetrated into the weld joint by blocking oxygen, the oxygen-resistant metal composite pipe that the hot melt that the hot melt of avoiding causing the weld seam oxidation to cause tubing to lose efficacy connects connects.The utility model long time stability are higher, and the connection of oxygen-resistant metal composite pipe hot melt can be adopted the enhancement mode pipe fitting, join strength height, long service life.
The technical solution of the utility model is: the oxygen-resistant metal composite pipe that hot melt of the present utility model connects; include the inner plastic layer of arranging successively from inside to outside; heat-fusing glue layer; oxidation prevention layer; heat-fusing glue layer; metal layer; heat-fusing glue layer; second plastic layer; outer thermosetting plastics protective layer; bond together by heat-fusing glue layer between the outer wall of inner plastic layer and the inwall of oxidation prevention layer; bond together by heat-fusing glue layer between the outer wall of oxidation prevention layer and the inwall of metal layer; bond together by heat-fusing glue layer between the inwall of the outer wall of metal layer and second plastic layer, outer thermosetting plastics protective layer is arranged on the outside of plastic layer.
Also be provided with second oxidation prevention layer between the above-mentioned metal layer and second plastic layer; bond together by heat-fusing glue layer between the inwall of the outer wall of metal layer and second oxidation prevention layer; bond together by heat-fusing glue layer between the inwall of the outer wall of second oxidation prevention layer and second plastic layer, outer thermosetting plastics protective layer is arranged on the outside of second plastic layer.
The main material of the above-mentioned inner plastic layer and second plastic layer is any in polyethylene, polypropylene, polybutylene, polyurethane, polystyrene, PVC, acrylonitrile-butadiene-styrene copolymer or the ethylene-vinyl acetate copolymer.
Above-mentioned each heat-fusing glue layer is an adhesive resin; Above-mentioned oxidation prevention layer is the high barrier resin.
Above-mentioned each heat-fusing glue layer is any in the copolymer of modified by maleic acid anhydride graft high density polyethylene (HDPE), LLDPE, ethene and acrylic acid copolymer, ethene and vinyl acetate; Above-mentioned oxidation prevention layer is any in ethylene-vinyl alcohol copolymer, polyamide, the polyvinylidene chloride.
Above-mentioned metal layer is seamless steel pipe or copper pipe, or is seamed steel pipe or copper pipe.
Above-mentioned outer thermosetting plastics protective layer comprises crosslinked polyethylene, and outer thermosetting plastics protective layer can be peeled off with plastic layer, or is closely linked with plastic layer.
Above-mentioned outer thermosetting plastics protective layer can be peeled off with plastic layer, and outer thermosetting plastics protective layer replaces with the enhancement mode pipe fitting.
Above-mentioned enhancement mode pipe fitting is the fiber reinforcement type pipe fitting.
Between the above-mentioned inner plastic layer and second plastic layer and the enhancement mode pipe fitting by carrying out inside and outside hot melting cohesion together.
The utility model improves on the basis of original metal composite tubular construction, include oxidation prevention layer in metal layer inboard or both sides, make the utility model both have the characteristic of the combined strength bination height of common metal composite pipe, high temperature resistant, high pressure, have the oxygen obstruction effect of the oxidation prevention layer of the unexistent prevention weld seam of common metal composite pipe oxidation again, give these oxygen-resistant metal composite pipe long time stability high characteristics.The utility model oxygen-resistant metal composite pipe hot melt can adopt the enhancement mode pipe fitting, the join strength height, be difficult for leaking, long service life.The utility model can keep the non-oxidizing metal composite pipe of weld seam for a long time, especially is fit to the feedwater as standpipe or main.
Description of drawings
Fig. 1 is the oxygen-resistant metal composite pipe embodiment's 1 of the utility model hot melt connection structural representation.
Fig. 2 is the oxygen-resistant metal composite pipe embodiment's 2 of the utility model hot melt connection structural representation.
Embodiment
Embodiment 1:
Structural representation of the present utility model as shown in Figure 1; the oxygen-resistant metal composite pipe that hot melt of the present utility model connects; include the inner plastic layer 1 of arranging successively from inside to outside; heat-fusing glue layer 2; oxidation prevention layer 3; heat-fusing glue layer 4; metal layer 5; heat-fusing glue layer 6; second plastic layer 7; outer thermosetting plastics protective layer 8; bond together by heat-fusing glue layer 2 between the inwall of the outer wall of inner plastic layer 1 and oxidation prevention layer 3; bond together by heat-fusing glue layer 4 between the inwall of the outer wall of oxidation prevention layer 3 and metal layer 5; bond together by heat-fusing glue layer 6 between the inwall of the outer wall of metal layer 5 and second plastic layer 7, outer thermosetting plastics protective layer 8 is arranged on the outside of plastic layer 7.
The main material of the above-mentioned inner plastic layer 1 and second plastic layer 7 is any in polyethylene, polypropylene, polybutylene, polyurethane, polystyrene, PVC, acrylonitrile-butadiene-styrene copolymer or the ethylene-vinyl acetate copolymer.
Above-mentioned each heat-fusing glue layer is an adhesive resin; Above-mentioned oxidation prevention layer is the high barrier resin.
Above-mentioned each heat-fusing glue layer is any among the copolymer EVA of modified by maleic acid anhydride graft high density polyethylene (HDPE), LLDPE, ethene and acrylic acid copolymer EAA, ethene and vinyl acetate; Above-mentioned oxidation prevention layer is any in ethylene-vinyl alcohol copolymer EVOH, polyamide PA, the poly(vinylidene chloride) PVDC.
Above-mentioned metal layer is seamless steel pipe or copper pipe, or is seamed steel pipe or copper pipe.
Above-mentioned outer thermosetting plastics protective layer 8 comprises crosslinked polyethylene, and outer thermosetting plastics protective layer 8 can be peeled off with second plastic layer 7, or is closely linked with second plastic layer 7.
Above-mentioned outer thermosetting plastics protective layer 8 can be peeled off with second plastic layer 7, and outer thermosetting plastics protective layer 8 replaces with the enhancement mode pipe fitting.In the present embodiment, above-mentioned enhancement mode pipe fitting is the fiber reinforcement type pipe fitting.
Between above-mentioned inner plastic layer 1 and second plastic layer 7 and the enhancement mode pipe fitting by carrying out inside and outside hot melting cohesion together.
In the present embodiment, inner plastic layer 1 inner wall smooth guarantees fluid quality, improves transfer efficiency; Heat-fusing glue layer 2 plays the effect of bonding inner plastic layer 1 and oxidation prevention layer 2; Oxidation prevention layer 3 can blocking oxygen be penetrated into the weld joint and causes the weld seam oxidation; Heat-fusing glue layer 4 bonds together oxidation prevention layer 3 and metal layer 5; Metal layer 5 plays main pressure-bearing effect; The effect of heat-fusing glue layer 6 binding metal layers 5 and outer plastic layer 7; Second plastic layer 7 is as the hot melt tie layer; Outer thermosetting plastics protective layer 8 bears the damage of external environment condition.
Embodiment 2:
Structural representation of the present utility model as shown in Figure 2; the utility model and embodiment's 1 difference is also to be provided with second oxidation prevention layer 9 between the above-mentioned metal layer 5 and second plastic layer 7; be penetrated into the weld joint with further blocking oxygen and cause the weld seam oxidation; wherein bond together by heat-fusing glue layer 6 between the inwall of the outer wall of metal layer 5 and second oxidation prevention layer 9; bond together by heat-fusing glue layer 10 between the inwall of the outer wall of second oxidation prevention layer 9 and second plastic layer 7, outer thermosetting plastics protective layer 8 is arranged on the outside of second plastic layer 7.In the present embodiment, inner plastic layer 1 inner wall smooth guarantees fluid quality, improves transfer efficiency; Heat-fusing glue layer 2 plays the effect of bonding inner plastic layer 1 and oxidation prevention layer 2; The oxidation prevention layer 3 and second oxidation prevention layer 9 can blocking oxygen be penetrated into the weld joint and cause the weld seam oxidation; Heat-fusing glue layer 4 bonds together oxidation prevention layer 3 and metal layer 5; Metal layer 5 plays main pressure-bearing effect; The heat-fusing glue layer 6 binding metal layers 5 and second oxidation prevention layer 9; Heat-fusing glue layer 8 plays the effect of bonding second oxidation prevention layer 9 and second plastic layer 7; Second plastic layer 7 is as the hot melt tie layer; Outer thermosetting plastics protective layer 8 bears the damage of external environment condition.
Claims (10)
1. the oxygen-resistant metal composite pipe that connects of a hot melt; it is characterized in that including the inner plastic layer (1) of arranging successively from inside to outside; heat-fusing glue layer (2); oxidation prevention layer (3); heat-fusing glue layer (4); metal layer (5); heat-fusing glue layer (6); second plastic layer (7); outer thermosetting plastics protective layer (8); bond together by heat-fusing glue layer (2) between the inwall of the outer wall of inner plastic layer (1) and oxidation prevention layer (3); bond together by heat-fusing glue layer (4) between the inwall of the outer wall of oxidation prevention layer (3) and metal layer (5); bond together by heat-fusing glue layer (6) between the inwall of the outer wall of metal layer (5) and second plastic layer (7), outer thermosetting plastics protective layer (8) is arranged on the outside of plastic layer (7).
2. the oxygen-resistant metal composite pipe that hot melt according to claim 1 connects; it is characterized in that also being provided with second oxidation prevention layer (9) between above-mentioned metal layer (5) and second plastic layer (7); bond together by heat-fusing glue layer (6) between the inwall of the outer wall of metal layer (5) and second oxidation prevention layer (9); bond together by heat-fusing glue layer (10) between the inwall of the outer wall of second oxidation prevention layer (9) and second plastic layer (7), outer thermosetting plastics protective layer (8) is arranged on the outside of second plastic layer (7).
3. the oxygen-resistant metal composite pipe that hot melt according to claim 1 and 2 connects, the main material that it is characterized in that above-mentioned inner plastic layer (1) and second plastic layer (7) is any in polyethylene, polypropylene, polybutylene, polyurethane, polystyrene, PVC, acrylonitrile-butadiene-styrene copolymer or the ethylene-vinyl acetate copolymer.
4. the oxygen-resistant metal composite pipe that hot melt according to claim 3 connects is characterized in that above-mentioned each heat-fusing glue layer is an adhesive resin; Above-mentioned oxidation prevention layer is the high barrier resin.
5. the oxygen-resistant metal composite pipe that hot melt according to claim 4 connects is characterized in that above-mentioned each heat-fusing glue layer is any among the copolymer EVA of modified by maleic acid anhydride graft high density polyethylene (HDPE), LLDPE, ethene and acrylic acid copolymer EAA, ethene and vinyl acetate; Above-mentioned oxidation prevention layer is any in ethylene-vinyl alcohol copolymer EVOH, polyamide PA, the poly(vinylidene chloride) PVDC.
6. the oxygen-resistant metal composite pipe that hot melt according to claim 5 connects is characterized in that above-mentioned metal layer is seamless steel pipe or copper pipe, or is seamed steel pipe or copper pipe.
7. the oxygen-resistant metal composite pipe that hot melt according to claim 6 connects; it is characterized in that above-mentioned outer thermosetting plastics protective layer (8) comprises crosslinked polyethylene; outer thermosetting plastics protective layer (8) can be peeled off with plastic layer (7), or is closely linked with plastic layer (7).
8. the oxygen-resistant metal composite pipe that hot melt according to claim 7 connects is characterized in that above-mentioned outer thermosetting plastics protective layer (8) can peel off with plastic layer (7), and outer thermosetting plastics protective layer (8) replaces with the enhancement mode pipe fitting.
9. the oxygen-resistant metal composite pipe that hot melt according to claim 8 connects is characterized in that above-mentioned enhancement mode pipe fitting is the fiber reinforcement type pipe fitting.
10. the oxygen-resistant metal composite pipe that hot melt according to claim 8 connects, it is characterized in that between above-mentioned inner plastic layer (1) and the oxidation prevention layer (3) by carrying out inside and outside hot melting cohesion together, between second plastic layer (7) and the enhancement mode pipe fitting by hot melting cohesion inside and outside carrying out together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920265175XU CN201715113U (en) | 2009-12-17 | 2009-12-17 | Hot melting connection oxygen resistance composite metal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920265175XU CN201715113U (en) | 2009-12-17 | 2009-12-17 | Hot melting connection oxygen resistance composite metal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715113U true CN201715113U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920265175XU Expired - Fee Related CN201715113U (en) | 2009-12-17 | 2009-12-17 | Hot melting connection oxygen resistance composite metal tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715113U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252138A (en) * | 2011-03-15 | 2011-11-23 | 广东联塑科技实业有限公司 | Glass fiber reinforced polyolefin tube and preparation method and application thereof |
| CN107830266A (en) * | 2017-12-07 | 2018-03-23 | 上海上塑控股（集团）有限公司 | A kind of hot and cold water hinders oxygen tubing with PB |
| CN109386677A (en) * | 2018-11-14 | 2019-02-26 | 张海生 | A kind of water conservancy construction environment-friendly type mud conveying pipeline |
| CN109575855A (en) * | 2018-12-25 | 2019-04-05 | 广州市合诚化学有限公司 | A kind of anti-nozzle absciss layer polyethylene liner steel pipe hot melt adhesive and the preparation method and application thereof |
-
2009
- 2009-12-17 CN CN200920265175XU patent/CN201715113U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252138A (en) * | 2011-03-15 | 2011-11-23 | 广东联塑科技实业有限公司 | Glass fiber reinforced polyolefin tube and preparation method and application thereof |
| CN102252138B (en) * | 2011-03-15 | 2013-02-27 | 广东联塑科技实业有限公司 | Glass fiber reinforced polyolefin tube and preparation method and application thereof |
| CN107830266A (en) * | 2017-12-07 | 2018-03-23 | 上海上塑控股（集团）有限公司 | A kind of hot and cold water hinders oxygen tubing with PB |
| CN109386677A (en) * | 2018-11-14 | 2019-02-26 | 张海生 | A kind of water conservancy construction environment-friendly type mud conveying pipeline |
| CN109575855A (en) * | 2018-12-25 | 2019-04-05 | 广州市合诚化学有限公司 | A kind of anti-nozzle absciss layer polyethylene liner steel pipe hot melt adhesive and the preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |