CN207599166U - A kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting - Google Patents
A kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting Download PDFInfo
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- CN207599166U CN207599166U CN201720965759.2U CN201720965759U CN207599166U CN 207599166 U CN207599166 U CN 207599166U CN 201720965759 U CN201720965759 U CN 201720965759U CN 207599166 U CN207599166 U CN 207599166U
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- steel
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- corrosions
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Abstract
The utility model is related to a kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fittings,Including steel pipe,Adapter section is moulded for non-steel in the steel pipe one end,The other end moulds adapter section for steel,If the steel modeling adapter section is equipped with arterial highway oblique cone O-ring groove with together with,O-ring seal is equipped in the O-ring groove,Polyethylene pipe is injection molded on the steel modeling adapter section,The polyethylene pipe other end extends outwardly,The deflation steel bushing with taper is pressed on the polyethylene pipe,Pass through the structure design of science,Ensure the steel modeling reliable sealing effect of conversion products and prominent anti-pulling ability,Selection by compatible anti-corrosion material and unique 3PE anticorrosion treatment technologies simultaneously,Reach perfect anti-corrosion effect,So that it is guaranteed that no matter polyethylene steel-plastic crossover sub direct-burried is in underground,Still it is exposed in air,Perfect it can realize the service life identical with polyethylene pipe,The utility model is designed reasonably,It can large-scale promotion.
Description
Technical field
Polyethylene pipe the utility model is related to field of fluid such as natural gas connects accessory more particularly to one kind adds
Intensity level 3PE anti-corrosions polyethylene steel-plastic converts pipe fitting.
Background technology
The pipeline both at home and abroad for fluid conveyings such as natural gases is usually metallic conduit and plastic conduit at present, wherein middle height
Pressure pipeline is mostly using metallic conduit, and mesolow pipeline is generally using plastic conduit, therefore during pressure conversion, it is often necessary to
Metallic conduit and plastic conduit are switched over.Wherein the steel pipe of mesohigh need to be usually converted into mesolow by natural gas line
Polyethylene（PE）Pipe, meanwhile, PE pipe ends will be unearthed when registering one's residence, and must be converted into metallic conduit.Currently used for metallic conduit
When being converted between plastic conduit, it usually needs using flanged joint or steel modeling conversion connection two ways, and since steel modeling turns
Part is changed as mill work, therefore in natural gas line, is especially widely used in the engineering of end general.It is resistance to due to steel pipe
Corrosivity need to carry out effective preservative treatment much worse than PE pipelines, therefore when making steel modeling conversion products to steel pipe end.At present
For steel modeling conversion products in the market there are mainly two types of preservative treatment mode, one kind is to use epoxy resin anticorrosion with painting, but it makes
The requirement of 50 years of PE pipes is much not achieved with the service life；After another kind is epoxy resin processing, in steel by the way of warming oneself by a fire by hand
Tube outside adds layer of polyethylene erosion resistant coating, the low production efficiency of this mode, outer layer polyethylene erosion resistant coating and internal layer epoxy resin
Between binding force it is insufficient, in use, easily infiltrate into underground water, steel pipe caused to get rusty rotten.
Invention content
To the above-mentioned state of the art, the technical problem to be solved by the utility model is to provide one kind to be used for plastics
The connection of pipeline and metallic conduit, and for the sufficient preservative treatment of steel pipe well in advance, it is ensured that steel pipe and polyethylene（PE）Pipe
The reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting in road identical service life.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of reinforcement grade 3PE anti-corrosion polyethylene
Steel modeling conversion pipe fitting, including steel pipe, which moulds adapter section for non-steel, and the other end moulds adapter section, the steel modeling knot for steel
If closing section is equipped with arterial highway oblique cone O-ring groove with together with, O-ring seal is equipped in the O-ring groove, the steel moulds adapter section
On be injection molded with polyethylene pipe, the polyethylene pipe other end extends outwardly, is pressed on the polyethylene pipe with the tight of taper
Contracting steel bushing.
Further, described polyethylene pipe one end mutually has baffle ring, which is placed on the steel pipe outer ring, is placed in described tight
Gu on the inside of steel bushing.
Further, the non-steel modeling adapter section port of the steel pipe is equipped with welding groove.
Further, it is coated with polyethylene anticorrosive coating outside the steel pipe.
Further, it is coated with polyethylene hot-melt adhesive outside the polyethylene anticorrosive coating.
Further, it is coated with PE-X heat-shrinkable T bush outside the polyethylene hot-melt adhesive.
Compared with prior art, the utility model has the advantage of：The structure design that the utility model passes through science, it is ensured that
Steel moulds the reliable sealing effect of conversion products and prominent anti-pulling ability, while passes through the selection of compatible anti-corrosion material
With unique 3PE anticorrosion treatment technologies, reach perfect anti-corrosion effect, no matter so that it is guaranteed that polyethylene steel-plastic crossover sub direct-burried
It in underground, is still exposed in air, perfect can realize the service life identical with polyethylene pipe, the utility model design
It rationally, can large-scale promotion.
Description of the drawings
Fig. 1 converts pipe fitting structure diagram for a kind of grade 3PE anti-corrosions polyethylene steel-plastic of strengthening of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
As shown in Figure 1, a kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting, including steel pipe 3, which is
Non-steel moulds adapter section, and the other end moulds adapter section for steel, if steel modeling adapter section is recessed equipped with the O-ring with together with of arterial highway oblique cone 5
Slot, the O-ring groove is interior to be equipped with O-ring seal 4, and polyethylene pipe 1, the polyethylene are injection molded on the steel modeling adapter section
1 other end of pipe extends outwardly, and the deflation steel bushing 2 with taper is pressed on the polyethylene pipe 1, and described 1 one end of polyethylene pipe offsets
There is baffle ring 6, which is placed on 3 outer ring of steel pipe, is placed in 2 inside of fastening steel bushing, and the non-steel modeling of the steel pipe 3 combines
Section port is equipped with welding groove 10, and polyethylene anticorrosive coating 7 is coated with outside the steel pipe 3, poly- second is coated with outside the polyethylene anticorrosive coating 7
Alkene hot melt adhesive 8, the polyethylene hot-melt adhesive 8 are coated with PE-X heat-shrinkable T bush 9 outside.
Steel pipe is processed into 8 oblique cone structures with PE pipeline section binding ends, and one of O-ring groove is set at opening's edge, O-shaped for placing
Sealing ring.
Steel pipe non-steel modeling binding end opening's edge processes welding groove in advance, to facilitate construction site, can be directly welded
Construction, is not required to again polish to oral area.
Polyethylene（PE）Plastic uses injection molding, and during production, the steel part steel modeling binding end with O-ring seal is put into
In injection mold, by the direct injection molding of PE materials outside steel pipe steel modeling adapter section, the PE raw materials of melting be filled into O-ring and
Steel pipe oblique cone structure, forms strict sealing performance and reliable anti-pull-out property.
Polyethylene（PE）Plastic is molded over using Shooting Technique outside steel pipe, and after abundant status adjustment, PE plastics
Steel modeling binding end outside deflation steel bushing of the press-in with taper, steel pipe, PE plastics tighten and form tool between three accessories such as steel bushing
There is the mechanical fastener of reasonable interference volume, so as to form reliable sealing performance and excellent tension pull out force.
Outer surface of steel tube using polyvinyl resin anticorrosion with painting, forms the anti-corrosion bottom of one layer of 0.2mm thickness, as most in advance
The erosion resistant coating of the inside.
First of polyethylene powders anticorrosion with painting is completed, and assembles the semi-finished product after plastic, is doing further 3PE anti-corrosions
Before, first using special grinding equipment, to steel pipe outside polyethylene powders spraying corrosion resistant coating carry out rough polishing polishing, make its outer surface thick
It is rough, increase contact area, to improve the adhesive strength between different anti-corrosion materials.
Steel pipe is put into temperature control in 100 ± 5 DEG C of special baking oven, into the preheating of 15 minutes during behavior, simultaneously
The moisture of steel tube surface is removed, wherein PE pipe ends are placed on outside baking oven, it is ensured that PE ends temperature is no more than 80 DEG C, is heated to prevent PE ends
Deformation.
The product after preheating is taken out, is put on special laying rack, using customization, the internal PE hot melt adhesive of coating in advance
PE-X heat-shrinkable T bush is set to outside steel pipe, and PE ends are covered 10mm or so.
6 same specifications and the steel molding product that has packaged PE-X heat-shrinkable T bush are quickly put into dedicated steel modeling conversion 3PE
In automatic baking equipment, inwardly, PE ends outwardly, by lower button, start automatic baking pattern by the technique of setting at steel pipe end.
The baking process is mainly as follows：
It is 220 DEG C to toast lamp box set temperature；
Steel pipe rapidly enters baking oven, fast forward rate 50mm/s, F.F. process, and the PE-X casings outside steel pipe carry out pre-
Heating, it is preliminary to shrink；
After steel pipe enters in place, 15s is stopped, the adapter section of product steel modeling at this time is located just in the baking lamp box of baking oven, is led to
PE-X heat-shrinkable T bush of the fluorescent tube irradiated heat at this is crossed, makes its abundant heat shrink, and ensures that the PE hot melt adhesive applied in it is abundant
Fusing, is sticked to outside steel pipe；
Stop 15s after, baking oven, which starts to automatically switch to, to exit the program at a slow speed, at this time steel molding product according to 10mm/s speed
It is gradually exited from baking oven, PE-X heat-shrinkable T bush passes sequentially through baking lamp box, completes to shrink, and hot melt adhesive is firmly adhered to steel pipe
In external polyethylene powder coating；
After steel molding product exits in place completely, quickly product is removed, special put is put into and adds, natural cooling.
Compared with prior art, the utility model has the advantage of：The structure design that the utility model passes through science, it is ensured that
Steel moulds the reliable sealing effect of conversion products and prominent anti-pulling ability, while passes through the selection of compatible anti-corrosion material
With unique 3PE anticorrosion treatment technologies, reach perfect anti-corrosion effect, no matter so that it is guaranteed that polyethylene steel-plastic crossover sub direct-burried
It in underground, is still exposed in air, perfect can realize the service life identical with polyethylene pipe, the utility model design
It rationally, can large-scale promotion.
Claims (6)
1. a kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting, which is characterized in that including steel pipe, which is non-
Steel moulds adapter section, and the other end moulds adapter section for steel, if steel modeling adapter section is equipped with arterial highway oblique cone O-ring groove with together with,
O-ring seal is equipped in the O-ring groove, is injection molded with polyethylene pipe on the steel modeling adapter section, the polyethylene pipe is another
One end extends outwardly, and the deflation steel bushing with taper is pressed on the polyethylene pipe.
2. a kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting according to claim 1, which is characterized in that described
Polyethylene pipe one end mutually has baffle ring, which is placed on the steel pipe outer ring, is placed on the inside of the deflation steel bushing.
3. a kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting according to claim 1, which is characterized in that described
The non-steel modeling adapter section port of steel pipe is equipped with welding groove.
4. a kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting according to claim 1, which is characterized in that described
Polyethylene anticorrosive coating is coated with outside steel pipe.
5. a kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting according to claim 4, which is characterized in that described
Polyethylene hot-melt adhesive is coated with outside polyethylene anticorrosive coating.
6. a kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting according to claim 5, which is characterized in that described
PE-X heat-shrinkable T bush is coated with outside polyethylene hot-melt adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720965759.2U CN207599166U (en) | 2017-08-04 | 2017-08-04 | A kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720965759.2U CN207599166U (en) | 2017-08-04 | 2017-08-04 | A kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207599166U true CN207599166U (en) | 2018-07-10 |
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| CN201720965759.2U Active CN207599166U (en) | 2017-08-04 | 2017-08-04 | A kind of reinforcement grade 3PE anti-corrosions polyethylene steel-plastic conversion pipe fitting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373088A (en) * | 2018-11-05 | 2019-02-22 | 浙江庆发管业科技有限公司 | A kind of flexibility anti-settling self-regulation steel modeling conversion |
| CN112032472A (en) * | 2020-09-14 | 2020-12-04 | 重庆市钧杰浩石油设备有限公司 | Anti-shearing protective sleeve for connecting part of steel-plastic conversion pipe fitting |
-
2017
- 2017-08-04 CN CN201720965759.2U patent/CN207599166U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373088A (en) * | 2018-11-05 | 2019-02-22 | 浙江庆发管业科技有限公司 | A kind of flexibility anti-settling self-regulation steel modeling conversion |
| CN112032472A (en) * | 2020-09-14 | 2020-12-04 | 重庆市钧杰浩石油设备有限公司 | Anti-shearing protective sleeve for connecting part of steel-plastic conversion pipe fitting |
| CN112032472B (en) * | 2020-09-14 | 2022-04-05 | 重庆市钧杰浩石油设备有限公司 | Anti-shearing protective sleeve for connecting part of steel-plastic conversion pipe fitting |
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