CN111331834A - Production method of plastic-lined main pipeline of pointer type sprinkler - Google Patents
Production method of plastic-lined main pipeline of pointer type sprinkler Download PDFInfo
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- CN111331834A CN111331834A CN202010149560.9A CN202010149560A CN111331834A CN 111331834 A CN111331834 A CN 111331834A CN 202010149560 A CN202010149560 A CN 202010149560A CN 111331834 A CN111331834 A CN 111331834A
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- main pipeline
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- hdpe
- lined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
- B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention relates to a production method of a pointer type sprinkling machine plastic-lined main pipeline. The HDPE plastic-lined pipe clamp is pulled into a main pipeline, and the two ends of the HDPE plastic-lined pipe clamp are respectively reserved with allowance with the length of 40 mm; heating two ends of the HDPE plastic-lined pipe, flanging the HDPE plastic-lined pipe by using a forming die, and closely adhering a formed HDPE plastic-lined pipe flange and a main pipeline flange together; a water outlet joint is arranged at the water outlet of the main pipeline; a water stop pad is arranged between the interior of the main pipeline and the water outlet joint; and a locking nut is arranged between the outside of the water outlet of the main pipeline and the water outlet joint. Compared with the prior art, the production method of the plastic-lined main pipeline of the pointer sprinkler has the advantages of low production cost, good corrosion prevention effect and the like.
Description
Technical Field
The invention relates to a production method of a main pipeline of a sprinkler, in particular to a production method of a plastic lining main pipeline of a pointer sprinkler with good corrosion prevention effect.
Background
The pointer type sprinkler is frequently used for spraying biogas slurry, waste water and rich water in field irrigation, the solutions are acidic or alkaline, and when the pH value of the solution is lower than 6.2 or higher than 8.5, the main pipeline of the pointer type sprinkler is corroded; in particular, some fertilizer water solutions contain high concentrations of chlorides or sulfates, which are highly corrosive to main pipelines. The main pipeline of present pointer sprinkler generally adopts hot dip galvanizing's technology, and the equipment of such technology production exists: the corrosion of the pipelines by the above acidic, alkaline, high-concentration chloride or sulfate solutions cannot be prevented. The long structural strength that can reduce the sprinkling irrigation machine and stride the frame has influenced the life of sprinkling irrigation machine, and because the corruption of trunk line can bring the sprinkling irrigation machine and stride the collapse possibility of frame to can bring defects such as personal safety hidden danger.
In addition, the main pipeline of pointer sprinkler of prior art also can adopt the method of main pipeline inside lining Poly to solve the anticorrosive of solution to the main pipeline, and the method of inside lining Poly has: adopting a heating method to perform injection molding glue inside the steel pipe for forming; and sleeving a Poly pipe inside the steel pipe by adopting a reducing compression method. However, these devices are expensive and expensive to maintain, which is not conducive to cost reduction for the enterprise.
Disclosure of Invention
The technical task of the invention is to provide the production method of the plastic lining main pipeline of the pointer sprinkler, which has low cost and good corrosion prevention effect, aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a production method of a plastic-lined main pipeline of a pointer sprinkler, which specifically comprises the following production steps:
a. removing the welded ribs in the main pipeline: removing the inner and outer welding ribs of the main pipeline on line by using a broach, wherein the welded junction is in smooth transition with the inner and outer surfaces of the main pipeline and has no burrs;
b. welding a flange: welding flanges at two sides of the main pipeline, fully welding the flanges with the inside and the outside of the main pipeline, and rounding the sharp corner of the welding line by using an angle grinder or a file for the inner welding line;
c. integral hot dip galvanizing: the welded main pipeline is pretreated by washing, pickling and the like, and then is hot-dip galvanized, after galvanizing, residual zinc nodules on the inner wall of the main pipeline are removed, and an inner welding seam is polished again to keep fillet transition;
and d, cutting the HDPE plastic-lined pipe: blanking by a sawing machine, flushing ports, removing burrs, and reserving machining allowance of 30-50mm at two ends according to the length of the main pipeline;
e. sleeving a sleeve: coating a small amount of talcum powder on the inner wall of the main pipeline, then drawing the HDPE lining plastic pipe into the main pipeline by using a clamp, and reserving machining allowance with the length of 40mm at two ends respectively;
f. go up lining and mould frock: slightly placing the main pipeline sleeved in the HDPE plastic lining pipe on a plastic lining tool, fixing the main pipeline, fixing the HDPE plastic lining pipe at the tail end by using F pincers and a flange, and fixing the main pipeline at the plastic lining end by using a clamping plate;
g. reaming: firstly, a plastic lining tool is arranged in a reaming die and is adjusted to be concentric with the main pipeline up and down; spraying demoulding oil on the reaming mold, baking the HDPE lining plastic pipe by a blowtorch, controlling the temperature at 110-120 ℃, and quickly pushing the HDPE lining plastic pipe into the reaming mold after the HDPE lining plastic pipe is softened in about 5 minutes;
h. molding: and (3) pushing out the reaming die, spraying demoulding oil on the forming die, quickly replacing the forming die, quickly pushing to the bottom, and standing after the forming die is pushed to be stationary. In the process, the torch was kept baked on the HDPE lined plastic pipe.
i. And (3) cooling: cooling the plastic-lined flange and the main pipeline by using cooling water, continuously cooling for about 15 minutes, and cooling to room temperature;
j. demolding: the forming die is withdrawn, and the extruded redundant HDPE material is removed when the forming die is withdrawn;
k. trimming the plastic-lined flange: repairing burrs on the periphery of the HDPE plastic-lined pipe flange and redundant HDPE extruded materials by using a blade;
drilling water hole: drilling a water hole by using a bench drill, and removing HDPE burrs on the periphery of the water hole;
m, installing a water outlet joint: installing a water outlet joint by using a special tool, and installing a water stop gasket between the interior of the main pipeline and the water outlet joint; the locking nut is arranged between the outside of a water outlet of the main pipeline and the water outlet joint, after the locking nut is fastened, the water stop gasket can seal the gap between the water outlet joint and the HDPE pipe, the solution can only flow out of the outlet pipe of the central hole of the water outlet joint, the water outlet joint is made of corrosion-resistant PA66+ GF30 materials, and the water stop gasket is made of corrosion-resistant fluororubber.
Compared with the prior art, the production method of the plastic-lined main pipeline of the pointer sprinkler has the following characteristics: according to the invention, the HDPE plastic lining pipe is pulled into the main pipeline by the clamp to sleeve the main pipeline, so that the production process is improved, the processing difficulty is reduced, and the manufacturing cost is reduced; through installing water connectors 3 and water stop gaskets 5 with special tools, the working solution can only flow out of the central hole outflow pipe of the water connectors, and the sealing effect and the corrosion resistance effect are good.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a plastic-lined main pipeline of a needle sprinkler.
Fig. 2 is a schematic three-dimensional structure diagram of a plastic-lined main pipeline of a needle sprinkler.
FIG. 3 is a schematic view of a partial cross-sectional structure of a HDPE plastic-lined pipe flanging at the end face of a needle type sprinkler plastic-lined main pipeline.
FIG. 4 is a schematic sectional view of the plastic-lined main pipeline of the needle sprinkler at the water outlet joint.
In the figure: 1. HDPE lining plastic pipe, 2, main pipeline, 3, water outlet joint, 4, locking nut, 5, water stop pad.
Detailed Description
The production method of the plastic lined main pipeline of the pointer sprinkler is described in detail below with reference to the attached drawings of the specification.
The invention relates to a production method of a pointer type sprinkling machine plastic-lined main pipeline, which comprises the steps that an HDPE plastic-lined pipe 1 is pulled into a main pipeline 2 by a clamp, and margins with the lengths of 40mm are reserved at two ends of the HDPE plastic-lined pipe; after heating the two ends of the HDPE plastic-lined pipe 1, flanging the HDPE plastic-lined pipe 1 by using a forming die, and tightly adhering a flange of the formed HDPE plastic-lined pipe 1 and a flange of the main pipeline 2 together; a water outlet joint 3 is arranged at the water outlet of the main pipeline 2; a water stop pad 5 is arranged between the inner part of the main pipeline 2 and the water outlet joint 3; a locking nut 4 is arranged between the outside of the water outlet of the main pipeline 2 and the water outlet joint 3.
The production method of the pointer type sprinkling machine plastic-lined main pipeline specifically comprises the following production steps:
a. removing the welding ribs in the main pipeline 2: the inner and outer welding ribs of the main pipeline 2 are removed on line by using a broach, and the welded junction is in smooth transition with the inner surface and the outer surface of the main pipeline 2 without burrs;
b. welding a flange: flanges are welded on two sides of the main pipeline 2, the flanges are fully welded with the inside and the outside of the main pipeline 2, and the sharp corners of the inner welding seams are rounded by using an angle grinder or a file;
c. integral hot dip galvanizing: the welded main pipeline 2 is pretreated by washing, pickling and the like, hot dip galvanized, and after galvanizing, residual zinc nodules on the inner wall of the main pipeline 2 are removed, and an inner welding seam is polished again to keep fillet transition;
and d, cutting the HDPE plastic-lined pipe 1: blanking by a sawing machine, flushing ports, removing burrs, and reserving machining allowance of 30-50mm at two ends according to the length of the main pipeline 2;
e. sleeving a sleeve: coating a small amount of talcum powder on the inner wall of the main pipeline 2, then drawing the HDPE plastic-lined pipe 1 into the main pipeline 2 by using a clamp, and reserving machining allowance with the length of 40mm at two ends respectively;
f. go up lining and mould frock: slightly placing the main pipeline 2 sleeved in the HDPE plastic lining pipe 1 on a plastic lining tool, fixing the main pipeline, fixing the HDPE plastic lining pipe 1 at the tail end by using F pliers and a flange, and fixing the main pipeline at the plastic lining end by using a clamping plate;
g. reaming: firstly, a plastic lining tool is arranged in a reaming die and is adjusted to be concentric with the main pipeline up and down; spraying demoulding oil on the reaming mold, baking the HDPE plastic lining pipe 1 by a blowtorch, controlling the temperature at 110-120 ℃, and quickly pushing the HDPE plastic lining pipe 1 into the reaming mold after the HDPE plastic lining pipe 1 is softened in about 5 minutes;
h. molding: and (3) pushing out the reaming die, spraying demoulding oil on the forming die, quickly replacing the forming die, quickly pushing to the bottom, and standing after the forming die is pushed to be stationary. In the process, the blast burner keeps baking the HDPE plastic-lined pipe 1;
i. and (3) cooling: cooling the plastic-lined flange and the main pipeline 2 by using cooling water, continuously cooling for about 15 minutes, and cooling to room temperature;
j. demolding: the forming die is withdrawn, and the extruded redundant HDPE material is removed when the forming die is withdrawn;
k. trimming the plastic-lined flange: repairing burrs on the periphery of the flange of the HDPE plastic-lined pipe 1 and redundant HDPE extruded materials by using a blade;
drilling water hole: drilling a water hole by using a bench drill, and removing HDPE burrs on the periphery of the water hole;
m. installing a water outlet joint 3: a special tool is used for installing a water outlet connector 3, and a water stop gasket 5 is arranged between the inside of the main pipeline 2 and the water outlet connector 3; install lock nut 4 between 2 delivery ports outsidess of trunk line 2 and the water connectors 3, lock nut 4 fastens the back, and the stagnant water pad 5 can seal the clearance of going out water connectors 3 and HDPE pipe 1, and the solution can only be followed the centre bore outlet pipe outside of water connectors 3, and water connectors 3 adopts corrosion resistant PA66+ GF30 material, and the stagnant water pad adopts corrosion-resistant fluororubber.
Claims (1)
1. The production method of the pointer type sprinkling machine plastic-lined main pipeline is characterized in that:
the method specifically comprises the following production steps:
a. removing the internal welding rib of the main pipeline (2): the inner and outer welding ribs of the main pipeline (2) are removed on line by using a broach, and the welded junction and the inner and outer surfaces of the main pipeline (2) are in smooth transition without burrs;
b. welding a flange: flanges are welded on two sides of the main pipeline (2), the flanges are fully welded with the inside and the outside of the main pipeline (2), and the sharp corners of the inner welding seams are rounded by using an angle grinder or a file;
c. integral hot dip galvanizing: the welded main pipeline (2) is pretreated by washing, pickling and the like, and then is hot-dip galvanized, after galvanizing, residual zinc nodules on the inner wall of the main pipeline (2) are removed, and an inner welding line is polished again to keep fillet transition;
cutting the HDPE plastic lining pipe (1): blanking by a sawing machine, flushing ports, removing burrs, and reserving machining allowance of 30-50mm at two ends according to the length of the main pipeline (2);
e. sleeving a sleeve: coating a small amount of talcum powder on the inner wall of the main pipeline (2), then drawing the HDPE plastic-lined pipe (1) into the main pipeline (2) by using a clamp, and reserving machining allowance with the length of 40mm at two ends respectively;
f. go up lining and mould frock: slightly placing a main pipeline (2) sleeved into the HDPE plastic lining pipe (1) on a plastic lining tool, fixing the main pipeline, fixing the HDPE plastic lining pipe (1) at the tail end by using an F clamp and a flange, and fixing the main pipeline at the plastic lining end by using a clamping plate;
g. reaming: firstly, a plastic lining tool is arranged in a reaming die and is adjusted to be concentric with the main pipeline up and down; spraying demoulding oil on the reaming die, baking the HDPE plastic lining pipe (1) by a blowtorch, controlling the temperature at 110-120 ℃, and quickly pushing the HDPE plastic lining pipe (1) into the reaming die after the HDPE plastic lining pipe (1) is softened in about 5 minutes;
h. molding: pushing out a reaming die, spraying demoulding oil on a forming die, quickly replacing the forming die, quickly pushing to the bottom, keeping the forming die still after the forming die is pushed, and keeping baking the HDPE plastic lining pipe (1) by a blast lamp in the process;
i. and (3) cooling: cooling the plastic-lined flange and the main pipeline (2) by using cooling water, continuously cooling for about 15 minutes, and cooling to room temperature;
j. demolding: the forming die is withdrawn, and the extruded redundant HDPE material is removed when the forming die is withdrawn;
k. trimming the plastic-lined flange: repairing burrs on the periphery of a flange of the HDPE plastic-lined pipe (1) and redundant HDPE extruded materials by using a blade;
drilling water hole: drilling a water hole by using a bench drill, and removing HDPE burrs on the periphery of the water hole;
m. installing a water outlet joint (3): a special tool is used for installing a water outlet joint (3), and a water stop gasket (5) is arranged between the inner part of the main pipeline (2) and the water outlet joint (3); install lock nut (4) between trunk line (2) delivery port outside and water connectors (3), after lock nut (4) fastening, the clearance of water connectors (3) and HDPE pipe (1) can be sealed in stagnant water pad (5), and solution only can be followed the centre bore outlet pipe outside of water connectors (3), and water connectors (3) adopt corrosion resistant PA66+ GF30 material, and stagnant water pad adopts corrosion-resistant fluororubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010149560.9A CN111331834A (en) | 2020-03-06 | 2020-03-06 | Production method of plastic-lined main pipeline of pointer type sprinkler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010149560.9A CN111331834A (en) | 2020-03-06 | 2020-03-06 | Production method of plastic-lined main pipeline of pointer type sprinkler |
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| CN111331834A true CN111331834A (en) | 2020-06-26 |
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| CN202010149560.9A Pending CN111331834A (en) | 2020-03-06 | 2020-03-06 | Production method of plastic-lined main pipeline of pointer type sprinkler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571838A (en) * | 2020-10-07 | 2021-03-30 | 安徽艾瑞德农业装备股份有限公司 | Anti-corrosion plastic-lined steel pipe |
Citations (2)
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|---|---|---|---|---|
| CN101672396A (en) * | 2009-09-05 | 2010-03-17 | 曲阜市东宏实业有限公司 | Method for connecting steel wire framework plastic compound pipes and 90-degree flanged edge making device in same |
| CN101839375A (en) * | 2010-05-19 | 2010-09-22 | 王莘 | Method and equipment for producing flange type lining plastic compound steel pipe |
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2020
- 2020-03-06 CN CN202010149560.9A patent/CN111331834A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672396A (en) * | 2009-09-05 | 2010-03-17 | 曲阜市东宏实业有限公司 | Method for connecting steel wire framework plastic compound pipes and 90-degree flanged edge making device in same |
| CN101839375A (en) * | 2010-05-19 | 2010-09-22 | 王莘 | Method and equipment for producing flange type lining plastic compound steel pipe |
Non-Patent Citations (1)
| Title |
|---|
| （英）马尔科姆·法利（MALCOLM FARLEY）著；: "《无收益水量管理手册-供水管网漏损控制指南》", 31 July 2017, 上海：同济大学出版社 , * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571838A (en) * | 2020-10-07 | 2021-03-30 | 安徽艾瑞德农业装备股份有限公司 | Anti-corrosion plastic-lined steel pipe |
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Application publication date: 20200626 |