JPS5848334B2 - Manufacturing method of long large diameter plastic pipe - Google Patents
Manufacturing method of long large diameter plastic pipeInfo
- Publication number
- JPS5848334B2 JPS5848334B2 JP51072267A JP7226776A JPS5848334B2 JP S5848334 B2 JPS5848334 B2 JP S5848334B2 JP 51072267 A JP51072267 A JP 51072267A JP 7226776 A JP7226776 A JP 7226776A JP S5848334 B2 JPS5848334 B2 JP S5848334B2
- Authority
- JP
- Japan
- Prior art keywords
- manufacturing
- plastic pipe
- diameter plastic
- pipes
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
プラスチックパイプは、軽量であって、その内外面の腐
蝕性条件や摩耗性条件に勝れ、流体輸送の媒体として好
適である。DETAILED DESCRIPTION OF THE INVENTION Plastic pipes are lightweight, have superior corrosive and abrasive conditions on their inner and outer surfaces, and are suitable as fluid transport media.
そのため、水道管、化学工場のパイピング等に広く使用
されていることは周知のとおりである。Therefore, it is well known that it is widely used for water pipes, piping in chemical factories, etc.
しかしながら、プラスチックパイプは、溶接容易な金属
パイプに比し接続加工の面で難点があり巻枠に巻いて輸
送できる細径管やフランジ接続の容易な小径管の用途は
広く開発されているが、内口径!500mmないし10
00mmを越える大口径プラスチックパイプの用途開発
は末だしの感を免れない。However, plastic pipes are difficult to connect compared to metal pipes, which are easy to weld, and although small-diameter pipes that can be transported wrapped around a reel and small-diameter pipes that can be easily connected with flanges have been widely developed, Inner diameter! 500mm to 10
The development of applications for large-diameter plastic pipes exceeding 0.00 mm feels like it is only at the beginning.
大口径プラスチックパイプは、臨海工業地帯の用水、排
水等のパイプライン、石油基地の送油配管、臨海浚渫作
業の排送管等として利用価値大と考えられるにも拘らず
、末だ充分に利用されていないのは、その接続加工に困
難性があるからである。Although large-diameter plastic pipes are considered to have great utility as water and drainage pipelines in coastal industrial areas, oil transmission pipes at oil bases, and drainage pipes for coastal dredging work, they are still not fully utilized. The reason why it is not done is because it is difficult to process the connection.
即ち、大口径プラスチックパイプは、その製造工場の立
地条件および陸上輸送の都合上、どうしても定尺切断(
通常4m、最大10〜12m)の要があり、これを需要
地で使用するためには、現地で再び溶接またはフランジ
接続して長尺としなければならないが、プラスチックパ
イプは鋼管等の金属パイプに比し溶接加工が難かしく、
また、大口径となるとフランジ接続も容易ではないとい
う難点がある。In other words, large-diameter plastic pipes cannot be cut to length due to the location of manufacturing plants and land transportation.
Usually 4m, maximum 10-12m), and in order to use it in the demand area, it must be re-welded or flanged on-site to make it longer, but plastic pipes can be replaced with metal pipes such as steel pipes. Welding is difficult compared to
Another drawback is that flange connection is not easy when the diameter is large.
本発明は、この点に着目し、需要地近辺の海上スペース
を利用し、継目のない長尺犬口径プラスチックパイプを
製造する方法を提供しようとするものであって、曳船に
よって曳航される僻または自走可能な作業船上に大口径
プラスチックパイプの製造設備を搭載し、水中に向って
成形されたプラスチックパイプを押出すことを特徴とす
る継目なし長尺大口径プラスチックパイプの製造方法を
発明要旨とするものである。The present invention focuses on this point, and aims to provide a method for manufacturing seamless long dog-caliber plastic pipes by utilizing marine space near the demand area. The gist of the invention is a method for manufacturing seamless long large-diameter plastic pipes, which is characterized by installing large-diameter plastic pipe manufacturing equipment on a self-propelled work boat and extruding formed plastic pipes into the water. It is something to do.
図面は、絆を利用した実施例の説明図であって曳船1に
よって曳航される解2に大口径プラスチックパイプの製
造設備3が搭載されている。The drawing is an explanatory diagram of an embodiment using ties, in which a large-diameter plastic pipe manufacturing facility 3 is mounted on a boat 2 towed by a tugboat 1.
この製造設備3は、ホツパ31から供給される原料を、
エキストルーダ32、ブレーカープレート33を経てダ
イ34からパイプ状に押出し、サイジングマンドル35
によってパイプ内外面の成形仕上加工を行ない、水冷装
置36を経て押出しロール37により海中に向って押出
して行くように構戒されている。This manufacturing equipment 3 uses raw materials supplied from the hopper 31,
It is extruded into a pipe shape from the die 34 through the extruder 32 and the breaker plate 33, and then the sizing mandle 35
The inner and outer surfaces of the pipe are shaped and finished, and the pipe is extruded into the sea by an extrusion roll 37 via a water cooling device 36.
なお、図中4は成形されたパイプ、5ぱ案内ロール群、
38はエキストルーダ32の駆動モータ39は減速ギヤ
、WLは水面を示す。In addition, in the figure, 4 is a formed pipe, 5 is a group of guide rolls,
Reference numeral 38 indicates a reduction gear of the drive motor 39 of the extruder 32, and WL indicates the water surface.
押出しロール37を出た成形パイプ4は一たん水面下に
没し案内ロール群5によって案内され、解2の後尾から
排出されるが、ポリエチレン、ポリプロピレン等のプラ
スチックは比重が水より軽いので自らの浮力により水面
に浮上し、第1図想像線で示すように水面近くを進行し
長尺バイプ4となるわけである。The formed pipe 4 that has exited the extrusion roll 37 is once submerged under the water surface, guided by the guide roll group 5, and discharged from the tail of the solution 2. However, since plastics such as polyethylene and polypropylene have a specific gravity lower than that of water, It rises to the surface of the water due to buoyancy and travels near the water surface as shown by the imaginary line in FIG. 1, becoming a long pipe 4.
この際、長尺となるに従い水流、波動、あるいは風の影
響を受けるおそれがあるので、成形パイプ4の先端にロ
ープを縛着して誘導するのが好ましい。At this time, it is preferable to tie a rope to the tip of the formed pipe 4 and guide it, since the longer the pipe becomes, the more likely it will be affected by water currents, waves, or wind.
本発明によれば、継目のない長尺犬口径のプラスチック
パイプを需要地近辺の海上スペースを利用して製造する
ことが可能であり、製造設備3を搭載した#2が移動可
能であるため、作業現場に最も近い位置を選んで停泊し
てパイプ4を製作でき、製造工場から需要地への輸送や
現地における接続加工作業を要しないため大巾なコスト
ダウンが達成でき、長尺で継目のない大口径プラスチッ
クパイプが製造できるため爾後の保守が容易であり、継
目からのリークや破損等の事故を未然に防屯できる効果
があるばかりでなく、或形パイプを水中に向って押出す
ようにしたため冷却水を節約でき、また、製造設備3を
鮮2に搭載して海上スペースを利田するため工場敷地を
要しない等副次的効果も絶大である。According to the present invention, it is possible to manufacture seamless long dog-caliber plastic pipes using offshore space near the demand area, and #2 equipped with manufacturing equipment 3 is movable. Pipe 4 can be fabricated by anchoring at the location closest to the work site, and there is no need for transportation from the manufacturing factory to the demand location or on-site connection processing, making it possible to achieve significant cost reductions. It is possible to manufacture large-diameter plastic pipes that do not require large-diameter plastic pipes, which makes subsequent maintenance easy, and not only has the effect of preventing accidents such as leaks from joints and breakage, but also makes it possible to push certain shaped pipes into the water. This has great secondary effects, such as saving on cooling water, and eliminating the need for a factory site since the manufacturing equipment 3 is mounted on the ship 2 and the offshore space is taken over.
なお、上記実施例は、曳船1によって曳航される靜2上
に製造設備3を搭載した例について説明したが、釘2に
代え自走可能な作業船を用いても全く同効である。Although the above embodiment has been described with respect to an example in which the manufacturing equipment 3 is mounted on the boat 2 towed by the tugboat 1, the same effect can be obtained even if a self-propelled work boat is used instead of the nail 2.
第1図は本発明方法の概略説明図、第2図は釘又ぱ作業
船に搭載したプラスチックパイプ製造設備の一部欠截説
明図である。
1・・・・・・曳船、2・・・・・・解(又は作業船)
、3・・・・・・プラスチックパイプ製造設備、4・・
・・・・成形パイプ。FIG. 1 is a schematic explanatory diagram of the method of the present invention, and FIG. 2 is a partially cutaway explanatory diagram of plastic pipe manufacturing equipment mounted on a nail cutting work boat. 1...Tugboat, 2...Solution (or work boat)
, 3...Plastic pipe manufacturing equipment, 4...
...Molded pipe.
Claims (1)
に大口径プラスチックパイプの製造設備を搭載し、海中
に向って成形されたプラスチックパイプを押出すことを
特徴とする長尺犬口径プラスチックパイプの製造方法。1. A long dog-diameter plastic pipe characterized by having large-diameter plastic pipe production equipment mounted on a self-propelled work boat towed by a tugboat and extruding the formed plastic pipe into the sea. manufacturing method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51072267A JPS5848334B2 (en) | 1976-06-21 | 1976-06-21 | Manufacturing method of long large diameter plastic pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51072267A JPS5848334B2 (en) | 1976-06-21 | 1976-06-21 | Manufacturing method of long large diameter plastic pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52155668A JPS52155668A (en) | 1977-12-24 |
JPS5848334B2 true JPS5848334B2 (en) | 1983-10-27 |
Family
ID=13484328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51072267A Expired JPS5848334B2 (en) | 1976-06-21 | 1976-06-21 | Manufacturing method of long large diameter plastic pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5848334B2 (en) |
-
1976
- 1976-06-21 JP JP51072267A patent/JPS5848334B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS52155668A (en) | 1977-12-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4261671A (en) | Corrugated pipe for deepwater applications | |
CN109334683A (en) | A kind of seabed vacuum pipe traffic system and its push mode laying method | |
US3740958A (en) | Method of fabricating and installing a submergible pipeline | |
US2718684A (en) | Pipelaying method and machine | |
US3860039A (en) | Pipelines | |
JPS5848334B2 (en) | Manufacturing method of long large diameter plastic pipe | |
CN206320464U (en) | Repairing applied to PCCP pipe fittings connects section | |
CN1290829A (en) | Pipe dragging method for beach landing pipeline and special device | |
CN203628077U (en) | Bell and spigot joint and bell and spigot pipe fitting connecting device | |
CN202901534U (en) | Deepwater submarine pipeline buckle arrestor | |
CN211766107U (en) | Ship desulfurization water discharge shipboard short pipe structure | |
CN201354895Y (en) | Plastics double-wall wounded corrugated pipe | |
WO2021232484A1 (en) | Underwater positioning method for large-diameter ultra-long hdpe pipe | |
CN201354891Y (en) | Plastic wound structural wall pipe | |
CN2349433Y (en) | Flexible pipe for connection of marine pipe line | |
CN206943664U (en) | A kind of Double-metal composite elbow pipe fitting | |
CN209340642U (en) | The waterborne group of pipe platform for river | |
CN214618437U (en) | Connecting device for high-density polyethylene spiral winding pipe | |
JPS59171634A (en) | Preparation of plastic coated steel pipe | |
CN202118396U (en) | Reinforced PVC-U (unplasticized polyvinyl chloride) double-wall corrugated pipe | |
CN214401915U (en) | Direct insertion type reinforced plastic steel sounding pipe | |
KR200336646Y1 (en) | Double wall corrugated pipe layered with recycled materials | |
RU61385U1 (en) | COMPLEX FOR INSTALLATION OF UNDERWATER PIPELINES | |
CN216045892U (en) | Polyethylene double-wall double-high-rib reinforced corrugated pipe | |
CN113561459A (en) | Plastic steel winding pipe and manufacturing method and production equipment thereof |