JPH01270988A - Pig for use in cleaning inner wall of pipe and cleaning method thereof - Google Patents
Pig for use in cleaning inner wall of pipe and cleaning method thereofInfo
- Publication number
- JPH01270988A JPH01270988A JP63098778A JP9877888A JPH01270988A JP H01270988 A JPH01270988 A JP H01270988A JP 63098778 A JP63098778 A JP 63098778A JP 9877888 A JP9877888 A JP 9877888A JP H01270988 A JPH01270988 A JP H01270988A
- Authority
- JP
- Japan
- Prior art keywords
- pig
- pipe
- cleaning
- outer diameter
- pigs
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 16
- 241000282887 Suidae Species 0.000 claims abstract description 26
- 239000013013 elastic material Substances 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 description 7
- 238000005498 polishing Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Cleaning In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分身）
本発明は、管路内壁面のクリーニング用ピグとピグを使
用するクリーニング工法の改良に関するものであり、埋
設ガス管や水道管等の更生に利用されるものである。[Detailed Description of the Invention] (Industrial Applicability) The present invention relates to a pig for cleaning the inner wall surface of pipes and an improvement in a cleaning method using the pig, and is suitable for rehabilitation of buried gas pipes, water pipes, etc. It is something that is used.
（従来の技術）
埋設ガス管や水道管等の内壁面のクリーニングには、サ
ンドジェット工法やピグ工法が知られている。(Prior Art) Sand jet method and pig method are known for cleaning the inner wall surfaces of buried gas pipes, water pipes, etc.
後者のピグによるクリーニング工法は、通常第４図に示
す如き形複のクリーニング用ピグＡを管路Ｂ内へ挿入し
、ワイヤーＣによってピグＡを前方へ牽引するか、若し
くは圧縮空気りによってピグＡを前方へ押圧移動するこ
とにより、管路内壁面のスケール等を研削するものであ
る。即ち、最初は外径の比校的小さな荒削用ピグＡによ
って管内壁面を研削し、順次ピグＡを外径の大きなもの
に取磐えつつ内壁面の研削を行なって、最後に研ト蒔用
ピグＡを通して内壁面の研磨仕上げを行なうものである
。The latter cleaning method using a pig usually involves inserting a cleaning pig A of the shape shown in Fig. 4 into the pipe B and pulling the pig A forward with a wire C, or pulling the pig A with a compressed air purge. By pushing the blade forward, scale etc. on the inner wall surface of the pipe can be ground. That is, first, the inner wall surface of the pipe is ground using a rough-cutting pig A with a comparatively small outer diameter, and then the inner wall surface is ground while gradually increasing the outer diameter of the pig A, and finally the grinding pig A is used. The inner wall surface is polished by passing it through the pig A.
ところが、ガス管路や水道管路の内壁面に固着するスケ
ールＳは、管路の使用年数や流通する水質等によってそ
の状態が大きく変わり、管サイズが同じであっても、ク
リーニングの対象となる管路毎にスケールの固着厚さが
夫々著しく異なることになる。However, the condition of scale S that adheres to the inner walls of gas and water pipes varies greatly depending on the age of the pipe and the quality of the water flowing through it, and even if the pipe size is the same, it is subject to cleaning. The thickness of scale adhering to each pipe differs significantly.
その結果、同一口径の管路（例えば口径５の管路）をク
リーニングする場合でも、荒削り用ピグだけでも２〜３
種類の外径の異なるピグを準備する必要があり、中削り
工程、研磨工程等を入れると、多数のクリーニング用ピ
グを施工現場へ搬入しなければならないという問題があ
る。As a result, even when cleaning pipes of the same diameter (for example, pipes with a diameter of 5), it takes only 2 to 3 minutes to clean the roughing pig.
It is necessary to prepare different types of pigs with different outer diameters, and if a hollowing process, polishing process, etc. are included, there is a problem that a large number of cleaning pigs must be transported to the construction site.
又、従前のクリーニング用ピグは何れもその形状が所謂
鉋弾形に形成されており、外径に比較して軸方向の寸法
が長くなっている。その結果、管路のエルボ部に於ける
麿擦抵抗が直管部に比較して相当大きくなり、施工中に
所謂ピグの詰まりを生じ易いという難点がある。Further, all conventional cleaning pigs have a so-called planer-shaped shape, and the axial dimension is longer than the outer diameter. As a result, the rubbing resistance at the elbow portion of the conduit becomes considerably greater than that at the straight pipe portion, and there is a problem in that so-called pig clogging is likely to occur during construction.
更に、従前の鉋弾形ピグを用いてクリーニングを行なう
場合には、ピグの挿入姿勢を逆向きにしなければピグの
進行方向を変えることが出来ないため、ピグを連続的に
往復動させて管路のクリーニングを能率よく行なうこと
が出来ないという問題がある。Furthermore, when cleaning with a conventional planer-shaped pig, the direction of the pig's movement cannot be changed unless the insertion position of the pig is reversed. There is a problem in that the roads cannot be cleaned efficiently.
（発明が解決しようとする問題点）
本発明は、従前のピグによる管路内壁面のクリーニング
に於ける上述の如き問題、即ち■処理すべき各管サイズ
並びに処理工程毎に、外径の若干異なる２〜３種のクリ
ーニング用ピグを準備しなければならず、必要とするピ
グの数量が著しく増大すること、■クリーニング用ピグ
を連続的に往復動させる−ことにより、作業能率を高め
ることが出来ないとと等の問題を解決せんとするもので
あり、ピグの外径を調整自在とすることにより、より少
ない数量のピグでもって、如何なるスケールＳの固着状
況を呈する管路であっても高能率でクリーニングできる
ようにした、クリーニング用ピグとその工法を提供する
ものである。(Problems to be Solved by the Invention) The present invention solves the above-mentioned problems in cleaning the inner wall surface of pipes using conventional pigs. Two or three different types of cleaning pigs must be prepared, which significantly increases the number of pigs required; ■Continuously reciprocating the cleaning pigs - improving work efficiency. By making the outer diameter of the pigs freely adjustable, it is possible to use a smaller number of pigs to solve the problem, such as when the scale S is stuck. The present invention provides a cleaning pig and its construction method that enable highly efficient cleaning.
（問題点を解決するための手段）
本件発明のクリーニング用ピグは、外周面に研削体２を
植設した円柱状の弾性材製ピグ本体１と；該ピグ本体１
の両側面に配設した締付板３，３と；前記ピグ本体ｌと
締付板３，３を１通ずる締付用ボルト４と；前記締付用
ボルト４に螺着され、締付板３，３によるピグ本体１の
挾圧力を変えることにより、ピグ本体１の外径グを調整
する締付用ナツト５とを発明の基本構成とするものであ
る。(Means for Solving the Problems) The cleaning pig of the present invention includes a cylindrical pig body 1 made of an elastic material with a grinding body 2 implanted on the outer peripheral surface;
Tightening plates 3, 3 arranged on both sides of; a tightening bolt 4 connecting the pig body l and the tightening plates 3, 3; a tightening bolt 4 screwed onto the tightening bolt 4; The basic structure of the invention includes a tightening nut 5 that adjusts the outer diameter of the pig body 1 by changing the clamping pressure of the pig body 1 by the screws 3 and 3.
また、本件発明のクリーニング方法は、管路Ｂ内へ両側
面からの挾圧力を変えることによりその外径ダを調整自
在としたクリーニング用ピグＡを挿入し、酸ピグＡを管
路Ｂ内を往復走行させた後、前記挾圧力を調整してピグ
Ａの外径夏を適宜量だけ拡径させ、引き涜き当該ピグＡ
を管路Ｂ内を往復走行させることを発明の基本構成とす
るものである。In addition, the cleaning method of the present invention involves inserting a cleaning pig A whose outer diameter is adjustable by changing the clamping pressure from both sides into the pipe B, and inserting the acid pig A into the pipe B. After running back and forth, adjust the clamping pressure to increase the outer diameter of the pig A by an appropriate amount, and remove the damaged pig A.
The basic structure of the invention is to cause the pipe to travel back and forth within the pipe B.
更に、本件の請求項３に記載のクリーニング方法は、両
側面からの挾圧力を変えることによりその外径ｌを調整
自在とした複数個のクリーニング用ピグＡを連結すると
共に、前記ピグＡの外径〆を適宜の値に調整して管路Ｂ
内へ挿入し、前記連結したピグＡを管路Ｂ内を走行させ
た後、前記挾圧力を調整してピグＡの外径ダを適宜量だ
け拡径させ、引き続き管路Ｂ内を走行させることを発明
の基本（３成とするものである。Furthermore, the cleaning method according to claim 3 of the present invention connects a plurality of cleaning pigs A whose outer diameter l can be freely adjusted by changing the clamping pressure from both sides, and Adjust the diameter to an appropriate value and connect pipe B.
After inserting the connected pig A into the inside and running the connected pig A inside the pipe B, adjust the clamping pressure to enlarge the outer diameter of the pig A by an appropriate amount, and continue running the pipe B. These are the basics (three components) of invention.
（作用）
り
締付用ナツト４の締込み量を調整し、ピグ本体１の外径
ダを処理すべき管路Ｂの有効内径に適応した備となるよ
うに調節する。(Function) The amount of tightening of the tightening nut 4 is adjusted, and the outer diameter of the pig body 1 is adjusted to match the effective inner diameter of the pipe line B to be treated.
次に、管路の一端開口からピグＡを挿入し、後方より圧
縮気体りを供給するか、若しくはワイヤーＣ等によりピ
グＡを牽引し、ピグＡを前方へ移動させる。Next, the pig A is inserted through the opening at one end of the pipe, and the pig A is moved forward by supplying compressed gas from the rear or by pulling the pig A with a wire C or the like.
ピグＡの移動により、その研削体２によって管内壁面の
スケールＳ等が研削剥離されて行く。As the pig A moves, scale S and the like on the inner wall surface of the pipe are ground and peeled off by the grinding body 2.
尚、圧縮気体りによってピグＡを押圧移動させる場合に
は、前記ピグ本体ｌが弾性材より形成されているため、
加圧されることによって若干変形し、拡径する。その結
果、管壁に多少凹凸があっても気密性がよく保持され、
ピグ本体ｌは円滑に前方へ進行する。In addition, when the pig A is pressed and moved by compressed gas, since the pig body l is made of an elastic material,
When pressurized, it deforms slightly and expands in diameter. As a result, airtightness is well maintained even if the pipe wall is somewhat uneven.
The pig body l moves forward smoothly.
圧縮気体りの供給方向を変えてピグＡを数回往復走行さ
せ、管内壁面の荒削りが終れば、ピグ本体１の諦込み量
を増してこれを若干拡径する。そして、同様に腹数回こ
れを往復走行させる。前述の如き工程を荒削用ピグ及び
研磨用ピグの夫々について適宜回数繰返すことにより、
所定のクリーン度にまで管内壁面が研削Φ研磨される。The pig A is made to reciprocate several times by changing the supply direction of the compressed gas, and when the rough cutting of the inner wall surface of the pipe is completed, the diameter of the pig main body 1 is increased to slightly enlarge it. Then, run this back and forth several times in the same way. By repeating the above-mentioned process an appropriate number of times for each of the rough cutting pig and the polishing pig,
The inner wall surface of the tube is ground and polished to a predetermined cleanliness level.
又、複数個のピグＡを連結体で連結し、これを圧縮気体
り若しくはワイヤーＣ等により往復動させることにより
、荒削り及び研磨仕上等が同時に、しかも効率よく行な
える。Furthermore, by connecting a plurality of pigs A with a connecting body and moving the pigs back and forth using compressed gas or wire C, rough cutting and polishing can be performed simultaneously and efficiently.
（実施例）
以下、図面に基づいて本発明の詳細な説明する。尚、第
１図乃至第３図に於いて、前記第４図の場合と同一部位
には同じ参照番号を使用する。(Example) Hereinafter, the present invention will be described in detail based on the drawings. In FIGS. 1 to 3, the same reference numerals are used for the same parts as in FIG. 4.
第１図は、本件発明に係るクリーニング用ピグの清新面
図であり、図に於いて１は弾性材製の円柱形ピグ本体、
２は研削体、３は締付板、４は締付用ボルト、５は締付
用ナツトである。FIG. 1 is a fresh side view of the cleaning pig according to the present invention, in which 1 is a cylindrical pig body made of an elastic material;
2 is a grinding body, 3 is a tightening plate, 4 is a tightening bolt, and 5 is a tightening nut.
前記ピグ本体１は、弾力性を備えた硬質弾性材（例えば
、ナイロンやウレタン等の合成樹脂、合成ゴム及び天然
ゴム等）により製作されており、適宜の長さＬを有する
円柱体に形成されている。The pig body 1 is made of a hard elastic material with elasticity (for example, synthetic resin such as nylon or urethane, synthetic rubber, natural rubber, etc.), and is formed into a cylindrical body having an appropriate length L. ing.
また、当該ピグ本体１の外周面は、断面視に於いてほぼ
平面状に形成されて詔り、その中央部にはボルト挿通孔
１ａが穿設されている。Further, the outer peripheral surface of the pig body 1 is formed into a substantially planar shape in a cross-sectional view, and a bolt insertion hole 1a is bored in the center thereof.
前記研削体２はピグ本体１の外表面に植設されている。The grinding body 2 is implanted on the outer surface of the pig body 1.
本実施例に於いては、スパイク状の研削体２が使用され
ているが、ブラシ型やナイフ刃型、研磨砥石型等の研削
体２であってもよいことは勿論である。In this embodiment, a spike-shaped grinding body 2 is used, but it goes without saying that the grinding body 2 may be of a brush type, knife blade type, abrasive stone type, or the like.
ピグＡは、ピグ本体１のボルト挿通孔１ａへ締付用ボル
ト４を挿通させ、締付板３，３を介設して締付用ナツト
５，５を適宜量締込むことにより組立てられており、前
記締込み量を調整することによりその外径グが調節され
る。The pig A is assembled by inserting the tightening bolt 4 into the bolt insertion hole 1a of the pig body 1, and tightening the tightening nuts 5, 5 by an appropriate amount with the tightening plates 3, 3 interposed. By adjusting the tightening amount, the outer diameter can be adjusted.
尚、ピグＡの外径ダは、通常管路Ｂの有効内径〆ｐより
やや大きい目に調整される。The outer diameter of the pig A is normally adjusted to be slightly larger than the effective inner diameter of the pipe B.
第２図は、本件発明に係るピグＡを用いた管内壁面のク
リーニング工法の説明図である。FIG. 2 is an explanatory diagram of a method for cleaning the inner wall surface of a pipe using pig A according to the present invention.
先ず、処理すべき管路を適宜の長さ（例えば１００〜２
００ ｍ ）毎に区分し、−側の開口端からピグＡを挿
入する。尚、当該ピグＡの外径Ｘは、被処理管路Ｂの管
路内壁面に固着したスケールＳの厚みに応じて締付用ボ
ルト４の締込み量を調整することにより、管路Ｂの有効
内径Ｏｐより漠かに太き目の笛に調節されている。First, the pipe line to be treated is cut to an appropriate length (for example, 100 to 2
00 m) and insert pig A from the open end on the - side. In addition, the outer diameter The whistle is adjusted to be vaguely thicker than the effective inner diameter Op.
次に、ピグＡの後方より圧縮気体りを供給するか若しく
はワイヤー〇によってピグＡを牽引し、世故回ピグＡを
管路内を往復動させる。その後、ピグＡの締付用ボルト
４の締込み量を若干増し、ピグＡの外径Ｘを適宜量増加
させると共に、前記と同様にこれを往復動させることに
より、荒削りを完了する。前記荒削り工程が完了すると
、ピグＡを中削り若しくは研磨用ピグに取替え、前述と
同様に順次ナツト４の締込み量を増してピグ本体１を拡
径しつつ、管路内を往復走行させ、内壁面の研１書を行
なう。Next, compressed gas is supplied from the rear of the pig A or the pig A is pulled by a wire 〇 to cause the pig A to reciprocate within the conduit. Thereafter, the tightening amount of the tightening bolt 4 of the pig A is increased slightly, the outer diameter X of the pig A is increased by an appropriate amount, and the rough cutting is completed by reciprocating the pig A in the same manner as described above. When the rough cutting process is completed, the pig A is replaced with a medium grinding or polishing pig, and as described above, the tightening amount of the nut 4 is increased sequentially to expand the diameter of the pig body 1, and the pig body 1 is caused to reciprocate within the pipe. Perform polishing of the inner wall surface.
前述の如き方法により、通常のスケールＳの固着程度で
あれば、荒削り用ピグ１個と研磨用ピグ１個でもって、
管路のクリーニングを完了することが出来る。By the method described above, if the scale S is fixed to the normal level, one rough cutting pig and one polishing pig can be used.
Cleaning of the pipeline can be completed.
第３図は、本発明に係るピグＡを用いた他のクリーニン
グ工法の例を示すものであり、複数個のピグＡを連結使
用する場合を示すものである。FIG. 3 shows an example of another cleaning method using pigs A according to the present invention, and shows a case where a plurality of pigs A are connected and used.
２＠のピグＡは可撓性の連結体６によって連結されてお
り、圧縮気体りによる押圧若しくはワイヤー〇による牽
引によって管内を進行する。The pigs A of 2@ are connected by a flexible connecting body 6, and move through the pipe by being pressed by compressed gas or pulled by a wire 〇.
この場合、前方のピグＡ＋と後方のピグんはその外径が
適宜に調整されており、スケールＳの固着量が多い場合
には両ピグの外径〆をほぼ等しく設定し、また、スケー
ルＳの固着量が少ない場合には、後方のピグんの締込み
用ナツト４を締込んで、その外径を前方のピグＡ＋の外
径より若干大きくしておく。In this case, the outer diameters of the front pig A+ and the rear pig are adjusted appropriately, and if the amount of scale S sticking is large, the outer diameters of both pigs are set approximately equal, and the scale S If the amount of sticking is small, tighten the tightening nut 4 of the rear pig A+ so that its outer diameter is slightly larger than the outer diameter of the front pig A+.
更に、両ピグＡ＋、 Ａｘも、スケールの固着程度に応
じてその研削体２の１項を違えて詔く０例えば、スケー
ルＳの固着量が多い場合には、両ピグん。Furthermore, both pigs A+ and Ax also change the first term of the grinding body 2 depending on the degree of scale adhesion.For example, when the amount of scale S adhesion is large, both pigs.
Ａ２をスパイク型等の研削体２を備えたピグＡにする。A2 is changed to a pig A equipped with a grinding body 2 such as a spike type.
また、逆にスケールＳの固着量が少ない場合には、前方
のピグＡ１をスパイク型の研削体２を備えたもの（荒削
り用ピグ）に、後方のピグんをブラシ型の研削体２を備
えたもの（研磨用ピグ）にする。Conversely, if the amount of scale S sticking is small, the front pig A1 should be equipped with a spike-shaped grinding body 2 (roughing pig), and the rear pig should be equipped with a brush-type grinding body 2. (polishing pig).
尚、前記第２図及び第３図では図示されていないが、管
路Ｂ内を走行中のピグＡの転倒を防止するため、ピグＡ
の前方若しくは後方に球状のガイド体を挿入し、該ガイ
ド体とピグＡとを剛体製の連結棒等によって連結するよ
うにしてもよい。Although not shown in FIGS. 2 and 3, in order to prevent pig A from falling while traveling in pipe B,
A spherical guide body may be inserted in front or behind the pig A, and the guide body and the pig A may be connected by a rigid connecting rod or the like.
（発明の効果）
本件発明のクリーニング用ピグＡは、ピグ本体１を弾性
材製の円柱形とすると共に、ピグ本体１の両側面の挾圧
力を調整することによりその外径Ｘを調整可能な構成と
しているため、管路内壁面のスケールＳの固着量に応じ
てピグ本体１の外径ｙを適当な寸法に調節することが出
来る。その結果、クリーニングの施工に際して多数の外
径の異なるピグを準備する必要が無くなり、手数が省け
ると共に、常に管路内壁面のスケールの固着厚さに適応
した外径ＸのピグＡによって研削剥離が行なえるため、
作業能率の大幅な向上が可能となる。(Effect of the invention) The cleaning pig A of the present invention has a pig body 1 made of an elastic material and has a cylindrical shape, and its outer diameter X can be adjusted by adjusting the clamping pressure on both sides of the pig body 1. Because of this structure, the outer diameter y of the pig body 1 can be adjusted to an appropriate size depending on the amount of scale S stuck to the inner wall surface of the pipe. As a result, there is no need to prepare a large number of pigs with different outer diameters during cleaning, which saves time and effort, and the pig A with outer diameter In order to be able to
It is possible to significantly improve work efficiency.
また、本件発明のクリーニング工法は、外径グの調整自
在なピグＡを用い、該ピグＡの外径ダを順次拡径しつつ
管内を往復走行させる構成としているため、少ない数の
ピグＡでもって管路内壁面を能率よくクリーニングする
ことが出来る。In addition, the cleaning method of the present invention uses a pig A whose outer diameter is adjustable, and is configured to travel back and forth inside the pipe while gradually expanding the outer diameter of the pig A. Therefore, a small number of pigs A can be used. As a result, the inner wall surface of the pipe can be efficiently cleaned.
また、複数個のピグＡを連結して管路Ｂ内を走行させる
場合には、管路内壁面のスケールの固着状況に応じて前
・後の各ピグＡの外径ｙを調整したり、或いは各ピグＡ
の研削体２の種類を違えることにより、管路内壁面の荒
研削から仕上研磨までを、より少ない数のピグを用いて
迅速に行なうことが可能となる。In addition, when multiple pigs A are connected and run in conduit B, the outer diameter y of each of the front and rear pigs A may be adjusted depending on the adhesion of scale on the inner wall of the conduit. Or each pig A
By using different types of grinding bodies 2, it is possible to perform rough grinding to final polishing of the inner wall surface of the pipe quickly using a smaller number of pigs.
第１図は本発明に係るクリーニング用ピグの縦断面図で
ある。
筺２図及び第３図は、本発明による管路内壁面のクリー
ニング方法の説明図である。
第４図は従前のピグ式クリーニングの説明図である。FIG. 1 is a longitudinal sectional view of a cleaning pig according to the present invention. FIGS. 2 and 3 are explanatory diagrams of a method for cleaning the inner wall surface of a pipe according to the present invention. FIG. 4 is an explanatory diagram of the conventional pig type cleaning.
Claims (3)
製ピグ本体（１）と；該ピグ本体（１）の両側面に配設
した締付板（３），（３）と；前記ピグ本体と両締付板
（３），（３）を挿通する締付用ボルト（４）と；前記
締付用ボルト（４）に螺着され、両締付板（３），（３
）によるピグ本体（１）の挾圧力を変えることにより、
ピグ本体（１）の外径（φ）を調整する締付用ナット（
５）とより構成した管内壁面のクリーニング用ピグ。(1) A cylindrical elastic material pig body (1) with a grinding body (2) implanted on the outer circumferential surface; tightening plates (3), (3) disposed on both sides of the pig body (1); ); a tightening bolt (4) that passes through the pig body and both tightening plates (3), (3); and a tightening bolt (4) that is threaded onto the tightening bolt (4) ,(3
) by changing the clamping pressure of the pig body (1),
A tightening nut (
5) A pig for cleaning the inner wall surface of a pipe.
とによりその外径（φ）を調整自在としたクリーニング
用ピグ（Ａ）を挿入し、該ピグ（Ａ）を管路（Ｂ）内を
往復走行させた後、前記挾圧力を調整してピグ（Ａ）の
外径（φ）を適宜量だけ拡径させ、引き続き当該ピグ（
Ａ）を管路（Ｂ）内を往復走行させることを特徴とする
管内壁面のクリーニング方法。(2) Insert the cleaning pig (A) whose outer diameter (φ) can be adjusted by changing the clamping pressure from both sides into the pipe (B), and insert the cleaning pig (A) into the pipe. After reciprocating inside (B), the clamping pressure is adjusted to increase the outer diameter (φ) of the pig (A) by an appropriate amount, and then the pig (
A method for cleaning an inner wall surface of a pipe, which comprises causing A) to travel back and forth within the pipe (B).
（φ）を調整自在とした複数個のクリーニング用ピグ（
Ａ）を連結すると共に、前記ピグ（Ａ）の外径（φ）を
適宜の値に調整して管路（Ｂ）内へ挿入し、前記連結し
たピグ（Ａ）を管路（Ｂ）内を走行させた後、前記挾圧
力を調整してピグ（Ａ）の外径（φ）を適宜量だけ拡径
させ、引き続き管路（Ｂ）内を走行させることを特徴と
する管路内壁面のクリーニング方法。(3) Multiple cleaning pigs whose outer diameter (φ) can be adjusted by changing the clamping pressure from both sides (
A), adjust the outside diameter (φ) of the pig (A) to an appropriate value, insert it into the pipe (B), and insert the connected pig (A) into the pipe (B). After running the pipe, the clamping pressure is adjusted to increase the outer diameter (φ) of the pig (A) by an appropriate amount, and the pipe continues to run inside the pipe (B). cleaning method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63098778A JPH01270988A (en) | 1988-04-20 | 1988-04-20 | Pig for use in cleaning inner wall of pipe and cleaning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63098778A JPH01270988A (en) | 1988-04-20 | 1988-04-20 | Pig for use in cleaning inner wall of pipe and cleaning method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01270988A true JPH01270988A (en) | 1989-10-30 |
Family
ID=14228830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63098778A Pending JPH01270988A (en) | 1988-04-20 | 1988-04-20 | Pig for use in cleaning inner wall of pipe and cleaning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01270988A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040017510A (en) * | 2002-08-21 | 2004-02-27 | 이상섭 | Grease Removable Methods and Devices for Ground Anchor |
| JP2006087971A (en) * | 2004-09-21 | 2006-04-06 | Ashimori Ind Co Ltd | Tool and method for cleaning of inside of pipe |
| JP2009061441A (en) * | 2007-08-10 | 2009-03-26 | Kurimoto Ltd | Water pipe cleaning method |
| JP2010179273A (en) * | 2009-02-09 | 2010-08-19 | Ksk:Kk | Piping cleaner |
| CN107413786A (en) * | 2017-08-08 | 2017-12-01 | 中石化河南油建工程有限公司 | A kind of spherical pig group and ball serving device |
| RU176512U1 (en) * | 2017-06-29 | 2018-01-22 | Общество с ограниченной ответственностью "ХимМонтажНаладка" | DEVICE FOR CLEANING THE INTERNAL SURFACE OF TUBULAR FURNACE COILS |
-
1988
- 1988-04-20 JP JP63098778A patent/JPH01270988A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040017510A (en) * | 2002-08-21 | 2004-02-27 | 이상섭 | Grease Removable Methods and Devices for Ground Anchor |
| JP2006087971A (en) * | 2004-09-21 | 2006-04-06 | Ashimori Ind Co Ltd | Tool and method for cleaning of inside of pipe |
| JP2009061441A (en) * | 2007-08-10 | 2009-03-26 | Kurimoto Ltd | Water pipe cleaning method |
| JP2010179273A (en) * | 2009-02-09 | 2010-08-19 | Ksk:Kk | Piping cleaner |
| RU176512U1 (en) * | 2017-06-29 | 2018-01-22 | Общество с ограниченной ответственностью "ХимМонтажНаладка" | DEVICE FOR CLEANING THE INTERNAL SURFACE OF TUBULAR FURNACE COILS |
| CN107413786A (en) * | 2017-08-08 | 2017-12-01 | 中石化河南油建工程有限公司 | A kind of spherical pig group and ball serving device |
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