JPH0295487A - Method for cleaning inside of pipe - Google Patents
Method for cleaning inside of pipeInfo
- Publication number
- JPH0295487A JPH0295487A JP63243938A JP24393888A JPH0295487A JP H0295487 A JPH0295487 A JP H0295487A JP 63243938 A JP63243938 A JP 63243938A JP 24393888 A JP24393888 A JP 24393888A JP H0295487 A JPH0295487 A JP H0295487A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- solvent
- pigs
- arom
- cleaning
- 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 abstract description 18
- 238000000034 method Methods 0.000 title claims description 11
- 241000282887 Suidae Species 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 4
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 4
- 239000003849 aromatic solvent Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 239000010802 sludge Substances 0.000 abstract description 3
- 125000002619 bicyclic group Chemical group 0.000 abstract description 2
- 125000002950 monocyclic group Chemical group 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 229920003051 synthetic elastomer Polymers 0.000 abstract description 2
- 239000005061 synthetic rubber Substances 0.000 abstract description 2
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 239000001993 wax Substances 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 3
- 239000003350 kerosene Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
Landscapes
- Cleaning In General (AREA)
- Detergent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、原油や重質油等の油類輸送用配管の内部をピ
グを用いて洗浄する方法に１３ｇするものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention is directed to a method of cleaning the inside of a pipe for transporting oil such as crude oil or heavy oil using a pig.
［従来の技術１
原油や重質油等の輸送用配管内部の洗浄にピグを用いる
際には、１個または複数のピグを用いて、スラッジやワ
ックス等の沈積物を除くことが行なわれる。しかし、ピ
グのみで除去し難い場合には、水、灯油等をピグ間に封
入して沈積物を溶解し、清掃することが行なわれている
。[Prior Art 1] When a pig is used to clean the inside of a pipe for transporting crude oil, heavy oil, etc., one or more pigs are used to remove deposits such as sludge and wax. However, if it is difficult to remove the deposits with just a pig, water, kerosene, or the like is sealed between the pigs to dissolve the deposits and clean them.
［発明が解決しようとする課題［
しかるに、配管内の腐食部分を検査したり、配管内通油
を変更する場合などには、管の内面に付着しているスラ
ッジやワックス等の沈積物を完全に除去する必要があり
、上記従来の水や灯油などによる清掃では不十分であっ
た。[Problem to be solved by the invention] However, when inspecting corroded parts in pipes or changing the oil flow inside pipes, it is necessary to completely remove deposits such as sludge and wax adhering to the inner surface of the pipes. The conventional cleaning methods described above using water, kerosene, etc. were insufficient.
また、清掃期間が限られていたり、低温条件のもとでの
洗浄等にも、従来の清掃方法では不十分であり、その改
良方法が要請されていた。Further, conventional cleaning methods are insufficient for cleaning in a limited cleaning period or under low-temperature conditions, and there has been a demand for improved methods.
本発明は、上記従来の要請に応えるためになされたもの
で、その目的とするところは、配管内の全域に亙ワ表面
の腐食状態を測定したり、通油を変更するのにも十分な
程に沈積物を除去することができ、しかも、作業時開を
短縮したり、低温環境に於いても効果的に洗浄すること
がでさる配管内部の清掃方法を提供することにある。The present invention was made in response to the above-mentioned conventional demands, and its purpose is to provide a system that is sufficient to measure the corrosion state of the surface of the pipes and to change the oil flow. To provide a method for cleaning the inside of a pipe, which can remove deposits as quickly as possible, shorten the opening time during work, and effectively clean the inside of a pipe even in a low-temperature environment.
［課題を解決するための手段１
本発明の配管内部の清掃方法は、配管内に複数個のピグ
を挿入し、該ピグ間に引火点４０°Ｃ以上の芳香族溶剤
を封入し、ピグの走行と共に配管内を移動して清掃する
ことを特徴とするものである。[Means for Solving the Problems 1] The method for cleaning the inside of a pipe according to the present invention involves inserting a plurality of pigs into the pipe, sealing an aromatic solvent with a flash point of 40°C or higher between the pigs, and cleaning the inside of the pipe. It is characterized by moving and cleaning inside the pipes as it travels.
上記溶剤は、単環あるいは二環の液体芳香族炭化水素を
主成分とする液体であって、除去すべきスランノやワッ
クス等の沈積物を効果的に溶がし出し、且つ合成樹脂か
ら成るピグや合成ゴムから成る摺動部を溶かしたり膨ｆ
Ｉさせたりしする恐れはない、また、揮発性が低く、引
火点が高い等の安全性を有する６
また、使用条件によっては、上記芳香族溶剤に７５容量
％以下の炭化水素油を混合した溶剤が極めて有効である
ことも見出した。The above-mentioned solvent is a liquid whose main component is a monocyclic or bicyclic liquid aromatic hydrocarbon, and is effective in dissolving deposits such as suranno and wax to be removed. or melt or swell the sliding parts made of rubber or synthetic rubber.
In addition, it has low volatility and high flash point, so it is safe.6 Also, depending on the usage conditions, it is possible to mix up to 75% by volume of hydrocarbon oil with the above aromatic solvent. We have also found that solvents are very effective.
さらに、上記芳香族溶剤あるいは炭化水素油を混合した
芳香族溶剤には、清浄分散性を有する界面活性剤を添加
し用いることもできる。Furthermore, a surfactant having cleaning and dispersing properties may be added to the aromatic solvent or the aromatic solvent mixed with hydrocarbon oil.
［実施例１ 以下、本発明の一実施例につ（１て説明する。[Example 1 One embodiment of the present invention will be described below.
直径６０ｃ＋ａ、長さ３，２００＋１の原油配管を、ピ
グ間に封入した芳香族溶剤３０．００１で往復３回移動
し洗浄したところ、従来の灯油を用いた洗浄では見られ
ない清浄な配管内表面が得られた。When a crude oil pipe with a diameter of 60c+a and a length of 3,200+1 was cleaned by moving it back and forth three times with aromatic solvent 30.001 sealed between pigs, the inner surface of the pipe was clean, which cannot be seen with conventional cleaning using kerosene. was gotten.
用いた芳香族溶剤は、次の通りである。The aromatic solvent used is as follows.
比重（１５／４℃） ０．８８４沸点範囲
１８１〜２０９℃引火点 ６４
°Ｃ
芳香族分 ９９．ＯｗＬ％次に、各容量％
に於ける芳香族溶剤のスラツノ溶解性等の試験結果を示
す。Specific gravity (15/4℃) 0.884 Boiling point range
181-209℃ Flash point 64
°C Aromatic content 99. OwL% Next, each capacity%
The results of tests on the solubility of aromatic solvents are shown below.
第１表 試験結果
なお、用いた清浄分散剤は、高塩基性カルシウムスルホ
ネートを主成分とするものである。Table 1 Test Results The detergent and dispersant used is one whose main component is highly basic calcium sulfonate.
［発明の効果１
本発明方法に使用する芳香族溶剤は、スラ７）やワック
スに対する溶解力が優れ、ピグを用いた洗浄操作で塗り
付けられるスランノやワックス類も溶解する反面で、ピ
グに用いられている介成譬ｊ（脂等を溶かす能力は低く
、安全である。[Effect of the invention 1 The aromatic solvent used in the method of the present invention has excellent dissolving power for sura7) and wax, and dissolves surano and waxes that are applied during cleaning operations using a pig. It has a low ability to dissolve fat, etc., and is safe.
また、本発明方法によれば、配管内の全域に亙り表面の
腐食状態を測定したり、通油を変更するのに十分な程に
清掃することができ、しがも、作業時間を短縮したり、
低温環境においても効果的に洗浄することができる。Furthermore, according to the method of the present invention, it is possible to clean the entire area of the pipe sufficiently to measure the state of surface corrosion and change the oil flow, while reducing the working time. Or,
Effective cleaning is possible even in low-temperature environments.
Claims (1)
４０℃以上の芳香族溶剤を封入し、ピグの走行と共に配
管内を移動して清掃することを特徴とする配管内部の清
掃方法。 ２、前記芳香族溶剤に炭化水素油を７５容量％以下混合
含有させた液体溶剤を用いることを特徴とする請求項１
に記載の配管内部の清掃方法。 ３、清浄分散性を有する界面活性剤を前記溶剤に添加し
用いることを特徴とする請求項１または２に記載の配管
内部の清掃方法。[Claims] 1. A plurality of pigs are inserted into the pipe, an aromatic solvent with a flash point of 40°C or higher is sealed between the pigs, and the pipe is moved and cleaned as the pigs run. A distinctive method for cleaning the inside of piping. 2. Claim 1, characterized in that a liquid solvent is used in which the aromatic solvent is mixed with 75% by volume or less of hydrocarbon oil.
How to clean the inside of the piping described in . 3. The method for cleaning the inside of a pipe according to claim 1 or 2, characterized in that a surfactant having cleaning dispersibility is added to the solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63243938A JPH0295487A (en) | 1988-09-30 | 1988-09-30 | Method for cleaning inside of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63243938A JPH0295487A (en) | 1988-09-30 | 1988-09-30 | Method for cleaning inside of pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0295487A true JPH0295487A (en) | 1990-04-06 |
Family
ID=17111268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63243938A Pending JPH0295487A (en) | 1988-09-30 | 1988-09-30 | Method for cleaning inside of pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0295487A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444886A (en) * | 1993-09-03 | 1995-08-29 | Fuji Oil Co., Ltd. | Apparatus for cleaning a piping |
| JP2002097493A (en) * | 2000-09-22 | 2002-04-02 | Japan Energy Corp | Detergent composition and cleaning method for petroleum product manufacturing apparatus |
| JP2002097494A (en) * | 2000-09-22 | 2002-04-02 | Japan Energy Corp | Detergent for chemical plant and its cleaning method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851969A (en) * | 1981-09-21 | 1983-03-26 | 新日鐵化学株式会社 | Washing of tank |
| JPS6058286A (en) * | 1983-09-08 | 1985-04-04 | 日石三菱株式会社 | Method of treating tank sludge |
| JPS62136284A (en) * | 1985-12-09 | 1987-06-19 | 出光エンジニアリング株式会社 | Method of cleaning inside of piping |
-
1988
- 1988-09-30 JP JP63243938A patent/JPH0295487A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851969A (en) * | 1981-09-21 | 1983-03-26 | 新日鐵化学株式会社 | Washing of tank |
| JPS6058286A (en) * | 1983-09-08 | 1985-04-04 | 日石三菱株式会社 | Method of treating tank sludge |
| JPS62136284A (en) * | 1985-12-09 | 1987-06-19 | 出光エンジニアリング株式会社 | Method of cleaning inside of piping |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444886A (en) * | 1993-09-03 | 1995-08-29 | Fuji Oil Co., Ltd. | Apparatus for cleaning a piping |
| JP2002097493A (en) * | 2000-09-22 | 2002-04-02 | Japan Energy Corp | Detergent composition and cleaning method for petroleum product manufacturing apparatus |
| JP2002097494A (en) * | 2000-09-22 | 2002-04-02 | Japan Energy Corp | Detergent for chemical plant and its cleaning method |
| JP4596402B2 (en) * | 2000-09-22 | 2010-12-08 | Ｊｘ日鉱日石エネルギー株式会社 | Cleaning composition for petroleum product manufacturing apparatus and cleaning method |
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