JPH0448873Y2 - - Google Patents
Info
- Publication number
- JPH0448873Y2 JPH0448873Y2 JP8236788U JP8236788U JPH0448873Y2 JP H0448873 Y2 JPH0448873 Y2 JP H0448873Y2 JP 8236788 U JP8236788 U JP 8236788U JP 8236788 U JP8236788 U JP 8236788U JP H0448873 Y2 JPH0448873 Y2 JP H0448873Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- tube
- pressure water
- pipe
- bent
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 14
- 238000010304 firing Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Cleaning In General (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は細くて長い、曲折配管の内壁を洗浄す
るための洗浄装置にかかり、原子力発電所又はこ
れに準ずる場所での曲折配管やバイオテクノロジ
ー関連、食品製造関連の曲折配管に用いられるも
のである。[Detailed description of the invention] [Industrial application field] The present invention relates to a cleaning device for cleaning the inner wall of a long, thin, bent pipe, and is suitable for use in bent pipes in nuclear power plants or similar locations, and in biotechnology. It is used for bent piping related to food manufacturing.
従来細くて（内径５〜25mm程度）、長い（直径
の100倍以上）、曲折配管において、その内部に堆
積した汚れを洗浄する装置は皆無であつた。
Conventionally, there has been no device for cleaning dirt accumulated inside narrow (inner diameter approximately 5 to 25 mm), long (more than 100 times the diameter), and bent pipes.
即ち、第４図に示されるような従来装置が存在
するが、この装置は高圧ポンプ１で高圧水（250
Kg／cm2程度）を作り、高圧ホース２を経由して発
射ノズル３より、この高圧水を発射するものであ
る。ところでこの従来装置のノズル及びその接続
部は、前記曲折配管の内部に挿入することができ
ないため、曲折配管の開口端縁にノズルの先端を
あてがい、この状態で高圧水を曲折配管内に発射
するものであつた。 That is, there is a conventional device as shown in FIG.
Kg/cm 2 ) and fires this high-pressure water from a firing nozzle 3 via a high-pressure hose 2. By the way, the nozzle and its connection part of this conventional device cannot be inserted into the bent pipe, so the tip of the nozzle is applied to the opening edge of the bent pipe, and in this state, high-pressure water is ejected into the bent pipe. It was hot.
その結果、従来装置ではノズルの先端から1M
位先までは高圧水の圧力が届くが、その先には圧
力が届かず、さらに配管が直線状であればともか
く２箇所以上の曲折部を有する曲折配管にあつて
は、圧力の到達距離はさらに短くなつてしまい、
管内堆積物の除去は殆ど不可能になるのが現実で
あつた。
As a result, with conventional equipment, 1M from the tip of the nozzle
Although the pressure of high-pressure water reaches the end of the pipe, the pressure does not reach the end.Furthermore, even if the pipe is straight, in the case of bent pipes that have two or more bends, the distance that the pressure reaches is limited. It became even shorter,
In reality, it became almost impossible to remove the deposits inside the pipes.
本考案が解決すべき技術的課題は、細くて長い
曲折配管の内部の堆積物を除去することができる
洗浄装置を提供することにある。 The technical problem to be solved by the present invention is to provide a cleaning device capable of removing deposits inside a long and thin bent pipe.
技術的課題を解決するために講じた技術的手段
は、高圧ポンプにて高圧水を得るようにした洗浄
装置において、高圧ポンプと発射ノズル間に圧力
の逃げ回路を設け、該逃げ回路と発射ノズル間に
曲折配管内に挿入可能な可撓性のある挿入管体を
設け、該挿入管体は摩擦係数の小さなフツ素樹脂
製の外管内にステンレス製内管を遊嵌状に収納し
た二重構造でなり、高圧水をステンレス製内管を
経由して発射ノズルに導くようにしたものであ
る。
The technical measures taken to solve the technical problem are that in a cleaning device that uses a high-pressure pump to obtain high-pressure water, a pressure relief circuit is provided between the high-pressure pump and the firing nozzle, and the pressure escape circuit and the firing nozzle are connected to each other. A flexible insertion tube that can be inserted into a bent pipe is provided between the tubes. The structure is such that high-pressure water is guided to the firing nozzle via a stainless steel inner tube.
本考案は圧力の逃げ回路を設けているため、高
圧ポンプで得られた高圧水の圧力が異常上昇する
ことにより安全回路が作動して発射ノズルからの
高圧水の圧力を低下させるという心配がなく、挿
入管体は摩擦係数の小さなフツ素樹脂製の外管の
滑性により曲折配管内に容易に滑り込むことがで
き、薄肉のステンレス製内管が高圧水を確実に発
射ノズル位置まで導き、配管内の曲折部で可撓性
挿入管体が撓んで奥深くまで進入できるので高圧
水を堆積物に直接噴射でき、大きな洗浄力が得ら
れる。
Since this invention has a pressure escape circuit, there is no need to worry about the safety circuit being activated due to an abnormal increase in the pressure of the high-pressure water obtained by the high-pressure pump and reducing the pressure of the high-pressure water from the firing nozzle. The insertion tube body can easily slide into bent piping due to the lubricity of the outer tube made of fluororesin with a small coefficient of friction, and the thin-walled stainless steel inner tube reliably guides high-pressure water to the ejection nozzle position, allowing the piping to flow smoothly. The flexible insertion tube bends at the bend inside and can penetrate deep, allowing high-pressure water to be sprayed directly onto deposits, providing great cleaning power.
本考案を図面の実施例について説明すると、第
１図は本考案の正面図、第２図は逃げ回路付近の
拡大図、第３図は挿入管体の部分拡大断面図、第
４図は従来の洗浄装置の正面図である。
To explain the present invention with reference to the drawings, Fig. 1 is a front view of the present invention, Fig. 2 is an enlarged view of the vicinity of the escape circuit, Fig. 3 is a partially enlarged sectional view of the insertion tube body, and Fig. 4 is a conventional FIG. 3 is a front view of the cleaning device.
図中符号１は高圧ポンプであり、高圧ホース２
を介して逃げ回路３が設けられている。この逃げ
回路３にはコツク４が存在し、このコツク４を操
作者が常時開状態にして調節することにより、前
記高圧ポンプで得られる高圧水の圧力が異常上昇
するのを防止している。高圧水の圧力が異常上昇
すると、高圧ポンプ１の安全回路が作動して、高
圧水の圧力が自動的に低下してしまい、必要とす
る高圧（この実施例では250Kg／cm2）が得られな
くなる。 Reference numeral 1 in the figure is a high-pressure pump, and high-pressure hose 2
An escape circuit 3 is provided via. This escape circuit 3 has a socket 4, which is kept open and adjusted by the operator to prevent the pressure of the high-pressure water obtained by the high-pressure pump from rising abnormally. If the pressure of high-pressure water rises abnormally, the safety circuit of high-pressure pump 1 will be activated and the pressure of high-pressure water will automatically drop, making it impossible to obtain the required high pressure (250 kg/cm 2 in this example). It disappears.
この逃げ回路３の分岐位置を経由した高圧水は
挿入管体５に至るが、この挿入管体５は摩擦係数
の小さなフツ素樹脂製の外管６とステンレス製内
管７との二重構造からなり、全体として可撓性を
有しているので、その先端に発射ノズル８を設け
た状態で曲折配管９内に挿入可能となる。この挿
入管体を単体で形成した場合には、滑性の点又は
強度の点のいずれかに問題があり使用不可とな
る。 The high-pressure water that passes through the branch position of the escape circuit 3 reaches the insertion tube 5, which has a double structure of an outer tube 6 made of fluorine resin with a small coefficient of friction and an inner tube 7 made of stainless steel. Since it has flexibility as a whole, it can be inserted into the bent pipe 9 with the firing nozzle 8 provided at its tip. If this insertion tube body is formed as a single piece, it will be unusable due to a problem in either lubricity or strength.
まず本考案で用いる曲折配管９は、内径が５〜
25mm、外径が７〜35mm程度の比較的細目で、長さ
が直径の100倍以上という条件であり、曲げＲ部
（その寸法は曲折配管の外径の７倍程度）を２箇
所以上有するものであり、第１図の実施例のもの
は、具体的には内径８mm、外径12mmである。 First, the bent pipe 9 used in the present invention has an inner diameter of 5 to 5.
25 mm, relatively narrow with an outer diameter of about 7 to 35 mm, the length must be at least 100 times the diameter, and there are two or more bends (the dimensions are about 7 times the outer diameter of the bent pipe). Specifically, the embodiment shown in FIG. 1 has an inner diameter of 8 mm and an outer diameter of 12 mm.
また第３図に示す挿入管体５は、摩擦係数の小
さなフツ素樹脂製の外管６の外径ｌが５mm、ステ
ンレス製内管７の外径ｌ２が２mm、肉厚ｌ３が１
mm、同ｌ４が0.5mm、外管と内管との隙間ｌ５が
0.5mmであり、上記各寸法は＋、−50％の範囲内で
あれば全体の可撓性を確保するのに問題はない。
また挿入管体５の全長は10Mである。 Further, in the insertion tube body 5 shown in FIG. 3, the outer diameter l of the outer tube 6 made of fluorine resin with a small coefficient of friction is 5 mm, the outer diameter l2 of the inner tube 7 made of stainless steel is 2 mm, and the wall thickness l3 is 1 mm.
mm, the same l4 is 0.5mm, and the gap l5 between the outer tube and the inner tube is
0.5 mm, and as long as each of the above dimensions is within the range of + and -50%, there is no problem in ensuring overall flexibility.
Further, the total length of the insertion tube 5 is 10M.
高圧水（250Kg／cm2）を第４図の従来例で発射
ノズル８から噴出させると、高圧水の流量は15
／分であり、これを上記曲折配管９の開口端縁
にあてがつて高圧水を噴出させても管の奥5M付
近に2M巾で設けた砂の堆積物を除去することは
できなかつた。これに対し、同一条件で本考案の
装置を用いたところ、発射ノズル８から噴出する
高圧水の流量は0.75／分に減少したが（逃げ回
路を開状態にしている影響）、噴出高圧水の圧力
は全く低下せず、挿入管体５は曲折配管の奥部迄
挿入できるので発射ノズルは堆積物の直前に位置
して高圧水を噴出し、高圧水の破壊力により、所
定時間を要すれば堆積物の除去は万全となる。 When high-pressure water (250 kg/cm 2 ) is ejected from the discharge nozzle 8 in the conventional example shown in Fig. 4, the flow rate of the high-pressure water is 15 kg/cm 2 .
/minute, and even if this was applied to the opening edge of the bent pipe 9 and high-pressure water was jetted out, it was not possible to remove the sand deposit that was 2M wide and located near the depth of the pipe 5M. On the other hand, when the device of the present invention was used under the same conditions, the flow rate of high-pressure water jetting out from the firing nozzle 8 decreased to 0.75/min (due to the effect of keeping the escape circuit open); The pressure does not drop at all, and the insertion pipe body 5 can be inserted deep into the bent pipe, so the ejection nozzle is positioned just in front of the deposit and spouts out high-pressure water. This will ensure that all deposits are removed.
本考案の可撓性挿入管体５は、外管と内管との
間に隙間ｌ５を確保して、内管を遊嵌状に保持し
ているので、全体を曲折する際に外管と内管との
屈曲差を吸収して曲折配管内への挿入が円滑にな
る。 The flexible insertion tube body 5 of the present invention secures a gap l5 between the outer tube and the inner tube and holds the inner tube in a loose fit, so when bending the entire body, the outer tube and It absorbs the bending difference with the inner pipe and can be inserted smoothly into bent pipes.
よつて本考案は、細くて長い曲折配管内の堆積
物を完璧に除去することができるので、原子力発
電所等に設置されている曲折配管内に放射性物質
を含む汚染堆積物が管内を閉塞させているような
状態であつても、これを安全に洗浄することがで
き、その製造コストも低廉である等のすぐれた効
果を具有する。
Therefore, the present invention can completely remove deposits in long, thin bent pipes, thereby preventing contaminated deposits containing radioactive materials from clogging the bent pipes installed in nuclear power plants, etc. It has excellent effects such as being able to safely clean it even if it is in a state where it is contaminated, and its manufacturing cost being low.
第１図は本考案の正面図、第２図は逃げ回路付
近の拡大図、第３図は挿入管体の部分拡大断面
図、第４図は従来の洗浄装置の正面図である。
１……高圧ポンプ、２……高圧ホース、３……
逃げ回路、４……コツク、５……挿入管体、６…
…摩擦係数の小さなフツ素樹脂製の外管、７……
ステンレス製内管、８……発射ノズル、９……曲
折配管、ｌ１……テフロン製外管の外径、ｌ２…
…ステンレス製内管の外径、ｌ３，ｌ４……肉
厚、ｌ５……隙間。
FIG. 1 is a front view of the present invention, FIG. 2 is an enlarged view of the vicinity of the escape circuit, FIG. 3 is a partially enlarged sectional view of the insertion tube, and FIG. 4 is a front view of a conventional cleaning device. 1...High pressure pump, 2...High pressure hose, 3...
Escape circuit, 4...Kotuku, 5...Insertion pipe body, 6...
...Outer tube made of fluororesin with a small coefficient of friction, 7...
Stainless steel inner tube, 8... Firing nozzle, 9... Bent pipe, l1... Outer diameter of Teflon outer tube, l2...
...outer diameter of stainless steel inner tube, l3, l4...wall thickness, l5...gap.
Claims (1)
置において、 高圧ポンプと発射ノズル間に圧力の逃げ回路を
設け、該逃げ回路と発射ノズル間に曲折配管内に
挿入可能な可撓性のある挿入管体を設け、該挿入
管体は摩擦係数の小さなフツ素樹脂製の外管内に
ステンレス製内管を遊嵌状に収納した二重構造で
なり、高圧水をステンレス製内管を経由して発射
ノズルに導くようにしたことを特徴とする曲折配
管用の洗浄装置。[Claim for Utility Model Registration] In a cleaning device that obtains high-pressure water using a high-pressure pump, a pressure relief circuit is provided between the high-pressure pump and the firing nozzle, and the pressure relief circuit is inserted into the bent pipe between the relief circuit and the firing nozzle. The insertion tube has a double structure with a stainless steel inner tube loosely fitted inside a fluororesin outer tube with a small coefficient of friction, and has a flexible insertion tube that allows high-pressure water to flow through the tube. A cleaning device for bent pipes, characterized in that the pipe is guided to a firing nozzle via a stainless steel inner pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8236788U JPH0448873Y2 (en) | 1988-06-23 | 1988-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8236788U JPH0448873Y2 (en) | 1988-06-23 | 1988-06-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH024692U JPH024692U (en) | 1990-01-12 |
| JPH0448873Y2 true JPH0448873Y2 (en) | 1992-11-17 |
Family
ID=31307125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8236788U Expired JPH0448873Y2 (en) | 1988-06-23 | 1988-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448873Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7372819B2 (en) * | 2019-11-20 | 2023-11-01 | 大陽日酸エンジニアリング株式会社 | gas piping |
-
1988
- 1988-06-23 JP JP8236788U patent/JPH0448873Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH024692U (en) | 1990-01-12 |
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