JPH10232099A - Method and device for grinding and sweeping internal surface of tube - Google Patents
Method and device for grinding and sweeping internal surface of tubeInfo
- Publication number
- JPH10232099A JPH10232099A JP9034949A JP3494997A JPH10232099A JP H10232099 A JPH10232099 A JP H10232099A JP 9034949 A JP9034949 A JP 9034949A JP 3494997 A JP3494997 A JP 3494997A JP H10232099 A JPH10232099 A JP H10232099A
- Authority
- JP
- Japan
- Prior art keywords
- air
- pipe
- cleaning
- rotation
- main body
- 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
Landscapes
- Cleaning In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は熱交換器用管等の
各種の管の内面を研掃する管の内面研掃方法及び装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for cleaning the inner surfaces of various tubes such as tubes for heat exchangers.
【０００２】[0002]
【従来の技術】従来管の内面を研掃する方法は、通常目
的の管の管端から、研掃装置としてのショットブラスト
用ノズル（以下ノズルと略称する）を差込んで装着し、
このノズルから空気と共に研掃材を吹込み前記管内面を
研掃している。2. Description of the Related Art Conventionally, a method of cleaning the inner surface of a pipe is performed by inserting a shot blast nozzle (hereinafter simply referred to as a nozzle) as a polishing apparatus from a pipe end of a target pipe, and mounting the same.
A cleaning material is blown from the nozzle together with air to clean the inner surface of the pipe.
【０００３】[0003]
【発明が解決しようとする課題】しかし前記従来の方法
によると、次のような各種の問題が生じる。それについ
て述べると、まずノズルから吹込まれた研掃材はその密
度にむらが生じ、このためそれによって研掃された管内
面には研掃むらの生じるのが避けられない。又他の問題
として、ノズルから吹き出された研掃材は層流状態で管
内を通行するため、管内面に接触しないまま通行する研
掃材も生じてしまうため効率が悪く、従って管内面を研
掃するには長時間を要する。又、研掃を要する目的の管
が屈曲部を有する場合、ノズルから吹き出された研掃材
は、前記屈曲部内の外周側は効果的に研掃するが、内周
側は研掃が不良である。このような管の場合屈曲部内面
の外周側と内周側とでは著しい研掃の差が生じてしま
う。However, according to the conventional method, the following various problems occur. To begin with, first, the abrasive material blown from the nozzle has an uneven density, which inevitably causes an uneven abrasive surface on the inner surface of the pipe. Another problem is that the cleaning material blown out from the nozzle passes through the pipe in a laminar flow state, so that some cleaning material passes without contacting the inner surface of the pipe, resulting in poor efficiency. It takes a long time to sweep. Further, when the intended pipe requiring blasting has a bent portion, the blasting material blown out from the nozzle effectively polishes the outer peripheral side in the bent portion, but the inner peripheral side is poorly polished. is there. In the case of such a tube, a remarkable difference in polishing occurs between the outer peripheral side and the inner peripheral side of the inner surface of the bent portion.
【０００４】又目的の管が長さ方向の途中に屈曲部を有
する管である場合その屈曲部を通過した研掃材は研掃力
が低下する。このための屈曲部の前と後では研掃に大き
な差が生じ易い。このような差を少くするために、前記
ノズルをこの管の反対側に装着して再度研掃する。こう
して両側から研掃するため作業は長時間を要し能率が上
らない。この発明は前記のような各種の問題を解決しよ
うとするもので、その目的は管の内面研掃の際に研掃む
らを生じない、管の内面研掃方法と装置を提供すること
である。[0004] When the target pipe is a pipe having a bent portion in the longitudinal direction, the abrasive material passing through the bent portion has a reduced abrasive cleaning force. For this reason, a large difference is likely to occur in the cleaning before and after the bent portion. In order to reduce such differences, the nozzle is mounted on the other side of the tube and re-cleaned. In this way, since both sides are cleaned, the work takes a long time and the efficiency is not improved. An object of the present invention is to solve the above-mentioned various problems, and an object of the present invention is to provide a method and an apparatus for cleaning the inner surface of a pipe, which do not cause unevenness in cleaning the inner surface of the pipe. .
【０００５】又他の目的は前記従来のように長時間を要
せず、短時間で研掃することのできる、管の内面研掃方
法及び装置を提供することである。又他の目的は目的の
管が屈曲部を有する管である場合に、前記屈曲部内部に
おいて、外周側及び内周側ともほぼ同様に研掃でき、大
きな差の生じない管の内面研掃方法と装置を提供するこ
とである。更に他の目的は目的の管が長さ方向の途中に
屈曲部を有する管の場合に、屈曲部とその後の部分との
研掃に大きな差を生じることなく、従って前記従来のよ
うにノズルを反対側から装着して再度研掃する等の無駄
な工程を省略することができ、従って短時間で研掃でき
る、管の内面研掃方法及び装置を提供することである。Another object of the present invention is to provide a method and an apparatus for cleaning the inner surface of a pipe, which can perform the cleaning in a short time without requiring a long time as in the prior art. Another object of the present invention is to provide a method of cleaning the inner surface of a pipe in which, when the target pipe is a pipe having a bent portion, the outer circumference and the inner circumference can be substantially similarly cleaned inside the bent portion, and a large difference does not occur. And to provide equipment. Still another object is that when the target pipe has a bend in the middle of the length direction, there is no large difference in the cleaning between the bend and the subsequent part, so that the nozzle is not used as in the conventional case. An object of the present invention is to provide a method and an apparatus for cleaning the inner surface of a pipe, which can eliminate a useless process such as mounting from the opposite side and re-cleaning, and thus can perform cleaning in a short time.
【０００６】[0006]
【課題を解決するための手段】前記の目的を達するこの
発明をまず方法について述べるとそれは、研掃する管の
一端から、該管の内部に研掃材を空気と共に付勢して他
端方向に供給し、かつ前記空気を前記研掃材と共に前記
管内において軸周方向に回転させて、前記管の内面を研
掃する、管の内面研掃方法である。次にこの発明の装置
について述べるとそれは、管状に形成された研掃装置の
主体１と、該主体１に連通させられた、研掃材と共に空
気を付勢して供給する供給装置２と、前記主体１内に設
けられた、前記研掃材と空気を軸周方向に回転させる回
転装置３と、前記主体１に形成された、研掃する管に連
通する連通部４と、から成ることを特徴とする、管の内
面研掃装置である。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is first described in terms of a method which comprises the steps of: starting from one end of a pipe to be blasted and energizing the blasting material with air into the interior of the pipe; And cleaning the inner surface of the pipe by rotating the air in the pipe circumferential direction in the pipe together with the cleaning material to clean the inner surface of the pipe. Next, the apparatus of the present invention will be described. It comprises a main body 1 of a blasting device formed in a tubular shape, a supply device 2 which is in communication with the main body 1 and urges and supplies air together with the blasting material. A rotating device provided in the main body for rotating the blasting material and air in a circumferential direction; and a communication portion formed in the main body and communicating with a pipe to be cleaned. An inner surface cleaning apparatus for a pipe, characterized in that:
【０００７】[0007]
【発明の実施の形態】この発明の方法の実施の形態につ
いて説明する。この発明は、研掃する管の一端から、該
管の内部に研掃材を空気と共に付勢して他端方向に供給
し、かつ前記空気を前記研掃材と共に前記管内において
軸周方向に回転させて、前記管の内面を研掃する、管の
内面研掃方法である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the method of the present invention will be described. According to the present invention, from one end of a pipe to be cleaned, an abrasive is urged together with air into the interior of the pipe and supplied toward the other end, and the air is supplied with the abrasive in the circumferential direction in the pipe. This is a method of cleaning the inner surface of a pipe by rotating the pipe to clean the inner surface of the pipe.
【０００８】そして空気を研掃材と共に回転させる方法
は不動に設けられた推進翼に、前記空気を研掃材と共に
付勢して供給する方法が用いられた。As a method of rotating the air together with the cleaning material, a method has been used in which the air is urged together with the polishing material and supplied to a stationary propulsion wing.
【０００９】又空気を研掃材と共に回転させる方法は、
研掃する管内に研掃材を含む空気を、軸方向に供給し、
該空気に、軸方向に対して斜めに空気を付勢して供給す
る方法も用いられた。The method of rotating the air together with the cleaning material is as follows.
Supply air containing abrasive material into the pipe to be cleaned in the axial direction,
A method was also used in which the air was urged and supplied obliquely to the axial direction.
【００１０】さらに空気を研掃材と共に回転させる方法
は前後２段に分けて行われた。Further, the method of rotating the air together with the abrasive material was performed in two stages, front and rear.
【００１１】そして空気を研掃材と共に回転させる前段
の方法は、不動に設けられた推進翼に空気を研掃材と共
に付勢して供給する方法であり、かつ後段の方法は研掃
する管内に、前記研掃材を含む空気に、軸方向に対して
斜めに空気を付勢して供給する方法が用いられた。The first method of rotating the air together with the cleaning material is a method in which air is supplied to an immovably provided propulsion wing together with the cleaning material, and the second method is a method in which the air is rotated in the pipe to be cleaned. In addition, a method has been used in which the air containing the abrasive material is energized and supplied obliquely to the axial direction.
【００１２】次に前記空気が研掃材と共に研掃する管内
において回転させられる場合の、一回転する迄の長さ
は、その回転の直径より長く形成された。Next, when the air is rotated in the pipe to be cleaned together with the cleaning material, the length until one rotation is formed longer than the diameter of the rotation.
【００１３】又、空気を研掃材と共に回転させる場合に
前段、及び後段共一回転に要する長さは、回転の直径よ
りも大きく形成され、かつ後段の一回転に要する長さは
前段の一回転に要する長さより短く形成された。When the air is rotated together with the cleaning material, the length required for one rotation in both the first and second stages is larger than the diameter of the rotation, and the length required for one rotation in the second stage is one in the first stage. It was formed shorter than the length required for rotation.
【００１４】そして研掃材はガラス粒子と合成樹脂粒子
を混合したものである。又前記合成樹脂粒子は尿素樹脂
により形成され、好ましい結果が得られた。The abrasive material is a mixture of glass particles and synthetic resin particles. The synthetic resin particles were formed of a urea resin, and favorable results were obtained.
【００１５】次にこの発明の装置の実施の形態について
述べると、この発明は、管状に形成された研掃装置の主
体１と、該主体１に連通させられた、研掃材と共に空気
を付勢して供給する供給装置２と、前記主体１内に設け
られた、前記研掃材と空気を軸周方向に回転させる回転
装置３と、前記主体１に形成された研掃する管に連通す
る連通部４とから成るものである。Next, an embodiment of the apparatus according to the present invention will be described. In the present invention, a main body 1 of a blasting device formed in a tubular shape, and air is blown together with a blasting material connected to the main body 1. And a rotating device 3 provided in the main body 1 for rotating the cleaning material and air in a circumferential direction, and a pipe formed on the main body 1 for cleaning. And a communication section 4 which performs the communication.
【００１６】そして前記回転装置３は主体１内に不動に
固定された推進翼５が用いられた。As the rotating device 3, a propulsion wing 5 fixed to the main body 1 is used.
【００１７】又前記回転装置３は主体１を内外に、かつ
先端部６を連通部４方向に向けて斜めに貫通し、更に軸
方向に対してそれぞれ同一角度で斜めに形成された複数
の通気口７と、該通気口７に付勢した空気を供給する空
気供給装置８とから成る装置が用いられた。The rotating device 3 penetrates the main body 1 inward and outward and the distal end portion 6 obliquely toward the communication portion 4 and further has a plurality of ventilation holes formed obliquely at the same angle with respect to the axial direction. An apparatus comprising an opening 7 and an air supply device 8 for supplying air urged to the ventilation opening 7 was used.
【００１８】次に前記回転装置３は前段回転装置９及び
後段回転装置１０により形成された。Next, the rotating device 3 was formed by a former rotating device 9 and a latter rotating device 10.
【００１９】そして前段回転装置９は主体１内に不動に
固定された推進翼５であり、後段回転装置１０は主体１
を内外に、かつ先端部６を連通部４方向に向けて斜めに
貫通し、更に軸方向に対してそれぞれ同一角度で斜めに
形成された複数の通気口７と、該通気口９に付勢した空
気を供給する空気供給装置８とにより形成された。The front-stage rotating device 9 is a propulsion wing 5 fixed to the main body 1 immovably, and the rear-stage rotating device 10 is
And a plurality of vents 7 penetrating obliquely at the same angle with respect to the axial direction and penetrating the distal end portion 6 obliquely toward the communication portion 4 and biasing the vent holes 9. And an air supply device 8 for supplying the air.
【００２０】次に、前記回転装置３は、研掃する管内に
おいて、回転させる研掃材と空気の一回転に要する長さ
１２が前記管の内径１３より大きくなるように形成され
ている。Next, the rotating device 3 is formed such that the length 12 required for one rotation of the abrasive material to be rotated and air in the pipe to be cleaned is larger than the inner diameter 13 of the pipe.
【００２１】さらに後段回転装置１０により回転される
研掃材を有する空気は、その一回転に要する長さ１４が
前段回転装置９による同様な一回転する長さ１５より短
く形成された。Further, the air having the abrasive material rotated by the post-rotation device 10 was formed such that the length 14 required for one rotation was shorter than the length 15 required for one rotation by the pre-rotation device 9.
【００２２】次に前記研掃材はガラス粒子と合成樹脂粒
子を混合したものが用いられた。Next, the abrasive used was a mixture of glass particles and synthetic resin particles.
【００２３】又前記合成樹脂粒子は尿素樹脂により形成
され、好ましい結果が得られる。The synthetic resin particles are formed of a urea resin, and favorable results are obtained.
【００２４】[0024]
【実施例】図１及び図２において１は管状に形成された
研掃装置の主体を示し、該主体１には、該主体１に研掃
材１７と共に空気を付勢して供給する供給装置２が連通
して設けられている。そしてこの供給装置２は一例とし
てコンプレッサ１８、レギュレータ１９、研掃材タンク
２０から成っている。２１は圧力計、２２はバルブを示
す。次に３は前記主体１に設けられた回転装置であり、
前記供給装置２から付勢して供給される研掃材１７を有
する空気を軸周方向に回転させる装置である。４は研掃
する管２３に連通する連通部であり、一例としてノズル
状に形成されている。２４はゴム等の弾性部材により形
成された連結部材である。次に前記回転装置３は図１及
び図３に示すように主体１内に不動に固定された推進翼
５であってもよい。なお図３に示す回転装置３は図１に
示すように前記主体１内に取付けられるが、その取付に
要する取付部分は図示を省略されている。1 and 2, reference numeral 1 denotes a main body of a blasting device formed in a tubular shape, and a supply device for supplying air to the main body 1 together with blasting material 17 by energizing air. 2 are provided in communication. The supply device 2 includes, for example, a compressor 18, a regulator 19, and an abrasive material tank 20. 21 is a pressure gauge, 22 is a valve. Next, 3 is a rotating device provided in the main body 1,
This is a device for rotating the air having the abrasive material 17 supplied by being urged from the supply device 2 in the axial circumferential direction. Reference numeral 4 denotes a communicating portion communicating with the pipe 23 to be cleaned, and is formed in a nozzle shape as an example. Reference numeral 24 denotes a connecting member formed of an elastic member such as rubber. Next, the rotating device 3 may be a propulsion wing 5 fixedly fixed in the main body 1 as shown in FIGS. Although the rotating device 3 shown in FIG. 3 is mounted in the main body 1 as shown in FIG. 1, the mounting portion required for the mounting is not shown.
【００２５】又、前記回転装置３は図１に示すように、
主体１を内外に貫通し、先端部６を連通部４方向に向
け、更に軸方向に対し、それぞれ同一角度（一例として
約４５度）で、斜めに形成した複数（一例として４箇）
の通気口７と、該通気口７に連通した、該通気に付勢し
た空気を供給する空気供給装置８とから成っている。そ
して該空気供給装置８は一例としてコンプレッサ１８及
びレギュレータ１９から成っている。なお該空気供給装
置８から供給される空気は前記供給装置２から供給され
る研掃材１７を有する空気よりも高圧に形成されてい
る。その相違は一例として２〜５kgf／cm2 対５〜６kgf
／cm2 である。The rotating device 3 is, as shown in FIG.
A plurality (four as an example) penetrating the main body 1 in and out, with the tip part 6 directed toward the communication part 4 and further formed at an equal angle (about 45 degrees as an example) with respect to the axial direction, respectively.
And an air supply device 8 that communicates with the ventilation port 7 and supplies air energized to the ventilation. The air supply device 8 includes, for example, a compressor 18 and a regulator 19. The air supplied from the air supply device 8 is formed at a higher pressure than the air having the abrasive material 17 supplied from the supply device 2. The difference is, for example, 2-5 kgf / cm 2 vs. 5-6 kgf
/ Cm 2 .
【００２６】次に前記回転装置３は図１に示すように前
段回転装置９と後段回転装置１０の２段階に亘って形成
された。前段回転装置９は図示のように固定された推進
翼５であり、後段回転装置１０は同じく図示のように、
軸方向に斜めに形成された通気口７である。そして前記
回転装置３は図３に示すように研掃する管２３内におい
て、研掃材１７を有する空気の一回転に要する長さ１２
は同管２３の内径１３より大きくなるように形成されて
いる。これにより研掃材１７を有する空気の回転の減衰
を微小とすることができる。Next, as shown in FIG. 1, the rotating device 3 is formed in two stages of a former rotating device 9 and a latter rotating device 10. The front-stage rotating device 9 is a propulsion wing 5 fixed as shown, and the rear-stage rotating device 10 is also
The vent 7 is formed obliquely in the axial direction. As shown in FIG. 3, the rotating device 3 has a length 12 required for one rotation of the air having the cleaning material 17 in a pipe 23 for cleaning.
Is formed to be larger than the inner diameter 13 of the pipe 23. Thereby, the attenuation of the rotation of the air having the abrasive material 17 can be reduced.
【００２７】又、後段回転装置１０により回転される研
掃材１７を有する空気はその一回転に要する長さ１４
は、前段回転装置９の同様に一回転する長さ１５よりも
短くなるように形成されている。これにより研掃材１７
の、管２３内面との接触を密にすることができる。次
に、前記研掃材１７については、この装置のテストにお
いて用いられた各種研掃材中最もよく研掃することので
きたものはガラス粒子と合成樹脂粒子の混合したもので
あった。そして上記合成樹脂粒子も特に尿素樹脂粒子を
用いたものが最も研掃効果が高かったものである。The air having the abrasive material 17 rotated by the post-rotation device 10 has a length 14 required for one rotation.
Is formed so as to be shorter than the length 15 of the former stage rotating device 9 which makes one rotation. Thus, the abrasive material 17
, The contact with the inner surface of the tube 23 can be made dense. Next, as for the abrasive material 17, among the various abrasive materials used in the test of this apparatus, the one that could be best cleaned was a mixture of glass particles and synthetic resin particles. The synthetic resin particles using urea resin particles in particular have the highest cleaning effect.
【００２８】なお図２において、２５は吸引装置であ
り、一例として吸引用ブロワを示し、２６はサイクロ
ン、２７はフィルタであり、一例としてバグフィルタを
示す。吸引装置２５により前記管２３中の、研掃材１７
を有して回転する空気を付勢し研掃を効果的にすると共
に、サイクロン２６を作動させてここに前記研掃材１７
を落下させて回収する。なお該サイクロン２６において
前記管２３内面から研掃により削除されたスケール粉末
が前記研掃材と分離させられ、後段のバグフィルタに捕
集される。In FIG. 2, reference numeral 25 denotes a suction device, for example, a suction blower, 26, a cyclone, 27, a filter, and a bag filter, for example. The cleaning material 17 in the pipe 23 is sucked by the suction device 25.
The rotating air is urged to make the cleaning effective, and the cyclone 26 is operated so that the cleaning material 17
Drop and collect. In the cyclone 26, the scale powder removed from the inner surface of the pipe 23 by the blasting is separated from the blasting material and collected by a bag filter at a subsequent stage.
【００２９】このように構成されたこの研掃装置は前記
主体１の連通部４に、研掃する管２３を弾性体製の連結
材２４により連結させ、次に前記主体１の前記供給装置
２から研掃材１７と共に空気を２．５kgf／cm2 程度の
圧力で供給し、前段回転装置９により回転させて前記研
掃する管２３内に供給する。そして後段回転装置１０に
５kgf／cm2 程度の圧力で空気供給装置８から加圧空気
を供給して管２３内の研掃材１７を含む空気の回転を更
に付勢する。これにより効果的に研掃が行なわれる。又
その場合前記吸引装置２５を作動させて前記管２３内の
回転している研掃材１７を含む空気を更に進行方向に付
勢させて研掃に役立てる。管２３内面を研掃した空気は
次にサイクロン２６に至り、研掃材１７を沈降させ、研
掃したスケールは次段のフィルタ２７において捕集され
る。In the polishing apparatus thus constructed, a pipe 23 to be cleaned is connected to the communication portion 4 of the main body 1 by a connecting member 24 made of an elastic material. Is supplied together with the cleaning material 17 at a pressure of about 2.5 kgf / cm 2 , and is rotated by the pre-rotating device 9 to be supplied into the pipe 23 to be cleaned. Then, pressurized air is supplied from the air supply device 8 to the post-stage rotating device 10 at a pressure of about 5 kgf / cm 2 to further energize the rotation of the air containing the abrasive 17 in the pipe 23. Thus, the cleaning is effectively performed. In this case, the suction device 25 is operated to further urge the rotating air including the cleaning material 17 in the pipe 23 in the traveling direction, which is useful for cleaning. The air that has cleaned the inner surface of the pipe 23 then reaches the cyclone 26 and sediments the cleaning material 17, and the cleaned scale is collected by the filter 27 in the next stage.
【００３０】なお、このように研掃する管２３の他端部
においてサイクロン２６、フィルタ２７、等を介して吸
引装置２５を設けたことにより、研掃材１７を回収して
スケール粉等を捕集できると共に、研掃する管２３内の
研掃材１７を含む空気の軸方向の力を付勢することがで
き、研掃を強めることもできる。次に前記研掃装置を用
い、プラスチック粒子とガラス粒子の研掃効果の高い混
合比率を求めてテストが行なわれた。その際の諸元は次
の通りである。 使用した研掃材 尿素樹脂粒子 ０．２ｍｍ〜２．０ｍｍ φ ガラス粒子 ０．１５ｍｍ〜０．２５ｍｍ φ 空気圧 固定推進翼を介する研掃材を含む空気 ２．５kgf／cm2 空気圧 通気口から噴射する空気 ５ kgf／cm2 研掃する管 長さ５００ｃｍ、Ｕ字状銅管、内径１２．５ｍｍ 研掃時間 ３０秒 結果は表１に示す通りであった。Since the suction device 25 is provided at the other end of the pipe 23 to be cleaned in this way via the cyclone 26, the filter 27, and the like, the cleaning material 17 is collected to collect scale powder and the like. As well as being able to collect, it is possible to urge the axial force of the air including the cleaning material 17 in the pipe 23 to be cleaned, and it is possible to enhance the cleaning. Next, a test was conducted by using the above-mentioned polishing apparatus in order to obtain a high mixing ratio of the plastic particles and the glass particles with a high cleaning effect. The specifications at that time are as follows. Abrasive material used Urea resin particles 0.2 mm to 2.0 mm φ Glass particles 0.15 mm to 0.25 mm φ Air pressure Air containing abrasive material via fixed propulsion blades 2.5 kgf / cm 2 Air pressure Injection from air vent Air 5 kgf / cm 2 Tube for cleaning 500 cm long, U-shaped copper tube, inner diameter 12.5 mm Cleaning time 30 seconds The results are as shown in Table 1.
【００３１】[0031]
【表１】 [Table 1]
【００３２】以上のテストにより尿素樹脂粒子とガラス
粒子をほぼ等量に混合した研掃材が最も効果的に研掃で
きることが判明した。From the above test, it has been found that a polishing material in which urea resin particles and glass particles are mixed in substantially equal amounts can perform the cleaning most effectively.
【００３３】[0033]
【発明の効果】請求項１の発明はその構成により、研掃
材を付勢した空気により軸方向に走行させると共に、軸
周方向に回転させることにより、その遠心力によって研
掃する管の内面に直角方向の力を及ぼすことができるか
ら、効果的に管内面を研掃することができる。請求項２
の発明は簡単な方法にもかかわらず研掃材を研掃する管
の内面の軸方向及びそれに直角方向に力を及ぼさせるこ
とができる。請求項３の発明は研掃材を含む空気流を外
周から付勢するため、効果的に偶力を与えることがで
き、研掃を効果的にすることができる。請求項４の発明
は研掃材を含む空気の回転を重複して付勢することがで
き、研掃材の管内面に対する直角方向の力を増強するこ
とができる。請求項５の発明は研掃材を含む空気の回転
を、固定した推進翼の後段に一層圧力の高い空気により
回転させ、かつ走行させるため強い研掃力を与えること
ができる。According to the first aspect of the present invention, the inner surface of a pipe which is polished by centrifugal force by rotating the blasting material in the axial direction with the energized air and rotating the blasting material in the circumferential direction is also provided. Can apply a force in a direction perpendicular to the pipe, so that the inner surface of the pipe can be effectively cleaned. Claim 2
In spite of a simple method, the invention of the present invention can exert a force in the axial direction of the inner surface of the pipe for cleaning the abrasive material and in the direction perpendicular thereto. According to the third aspect of the present invention, since the air flow containing the cleaning material is urged from the outer periphery, a couple can be given effectively, and the cleaning can be effectively performed. According to the fourth aspect of the present invention, the rotation of the air containing the abrasive can be urged in an overlapping manner, and the force of the abrasive in the direction perpendicular to the inner surface of the pipe can be increased. According to the fifth aspect of the present invention, the rotation of the air containing the abrasive can be rotated by the air having a higher pressure behind the fixed propulsion wing, and a strong abrasive force can be applied for running.
【００３４】請求項６の発明はその構成により研掃材を
含む空気の回転の減衰を少なくすることができる。請求
項７の発明は研掃材を含む空気の回転の減衰を少なくす
ることができると共に、研掃する管の内面に接する研掃
材を密にすることができる。請求項８の発明はガラス粒
子と合成樹脂粒子の硬軟の補完し合った研掃力を発揮さ
せることができる。請求項９の発明はテストの結果最も
よい成績を得ることができた。請求項１０の発明は研掃
材を研掃する管の内面に対し、軸方向と共に、管の内面
と直角方向に力を及ぼさせることができるから効果的に
研掃することができる。According to the sixth aspect of the invention, the attenuation of the rotation of the air containing the abrasive can be reduced. According to the seventh aspect of the present invention, it is possible to reduce the attenuation of the rotation of the air containing the cleaning material and to make the cleaning material in contact with the inner surface of the pipe to be cleaned dense. The invention according to claim 8 can exert the complementary abrasiveness of the hardness and softness of the glass particles and the synthetic resin particles. The invention of claim 9 was able to obtain the best results as a result of the test. According to the tenth aspect of the present invention, since the force can be applied to the inner surface of the pipe for cleaning the cleaning material in the axial direction as well as in the direction perpendicular to the inner surface of the pipe, the cleaning can be effectively performed.
【００３５】請求項１１の発明は簡単な装置であるにも
かかわらず、研掃材を研掃する管の内面に、軸方向及び
直角方向に力を及ぼさせることができる。請求項１２の
発明は研掃材を含む空気流を外周から付勢するために効
果的に偶力を与えることができ、研掃を強化することが
できる。請求項１３の発明は研掃材を有する空気流の回
転を重複して付勢することができ、研掃材の管内面に対
する直角方向の力を増強することができる。請求項１４
の発明は前段の固定した推進翼と後段の付勢した空気の
両方により、研掃材を回転させ、かつ走行させるため強
い研掃力を与えることができる。請求項１５の発明はそ
の構成により研掃材を含む空気の、回転の減衰を少くす
ることができる。Although the invention of claim 11 is a simple device, it can apply a force in the axial direction and the perpendicular direction to the inner surface of the pipe for cleaning the cleaning material. According to the twelfth aspect of the present invention, a couple can be effectively given to urge the air flow containing the abrasive material from the outer periphery, and the abrasiveness can be enhanced. According to the thirteenth aspect, the rotation of the airflow having the cleaning material can be urged in a redundant manner, and the force of the polishing material in the direction perpendicular to the inner surface of the pipe can be increased. Claim 14
According to the invention, a strong abrasive force for rotating and running the abrasive can be given by both the fixed propulsion blades at the front stage and the energized air at the rear stage. According to the fifteenth aspect of the present invention, the attenuation of rotation of the air containing the abrasive can be reduced.
【００３６】請求項１６の発明は、研掃材を含む空気の
回転の減衰を少くすることができると共に管の内面に接
する研掃材を密にすることができる。請求項１７の発明
は、ガラス粒子の硬さと合成樹脂粒子の軟らかさの、補
完し合った研掃力を発揮させることができる。請求項１
８の発明はテストの結果最もよい成績を得ることができ
た。なおこの発明は前記のように構成されたことによ
り、前記従来の方法の問題点をすべて解決することがで
きる。即ち研掃する管内の研掃を短時間ですませること
ができる。又管が屈曲部を有する場合も、屈曲部の外周
側と内周側とに、著しい研掃差の生じることを防止でき
る。又長さの途中に屈曲部を有する管の場合でも、屈曲
部の前後に研掃の差を実用上差支えない程度にすること
ができる。According to the sixteenth aspect of the present invention, it is possible to reduce the attenuation of the rotation of the air containing the abrasive material and to make the abrasive material in contact with the inner surface of the pipe dense. According to the invention of claim 17, it is possible to exert complementary polishing power of the hardness of the glass particles and the softness of the synthetic resin particles. Claim 1
The invention of No. 8 was able to obtain the best results as a result of the test. In addition, since this invention was comprised as mentioned above, all the problems of the said conventional method can be solved. In other words, the inside of the pipe to be cleaned can be cleaned in a short time. In addition, even when the pipe has a bent portion, it is possible to prevent a sharp polishing difference from occurring on the outer peripheral side and the inner peripheral side of the bent portion. Further, even in the case of a tube having a bent portion in the middle of the length, the difference in the polishing before and after the bent portion can be made practically acceptable.
【図１】この発明の実施例に対し、管の内面研掃装置の
部分の断面図である。FIG. 1 is a cross-sectional view of a part of a pipe inner surface cleaning apparatus according to an embodiment of the present invention.
【図２】同じく管の内面研掃装置の概略を示す図であ
る。FIG. 2 is a view schematically showing an inner surface cleaning apparatus for a pipe.
【図３】同じく図１に示す装置の部分の一部を省略して
示した斜視図である。FIG. 3 is a perspective view of the device shown in FIG. 1 with a part of the device omitted.
【図４】同じく管の内面研掃装置の作用を説明する図で
ある。FIG. 4 is a view for explaining the operation of the inner surface cleaning apparatus for a pipe.
１ 主体 ２ 供給装置 ３ 回転装置 ４ 連通部 ５ 固定された推進翼 ６ 先端部 ７ 通気口 ８ 空気供給装置 ９ 前段回転装置 １０ 後段回転装置 １１ 貫通部 １２ 長さ １３ 管の内径 １４ 長さ １５ 長さ DESCRIPTION OF SYMBOLS 1 Main body 2 Supply device 3 Rotation device 4 Communication part 5 Fixed propulsion wing 6 Tip part 7 Vent 8 Air supply device 9 Front stage rotation device 10 Rear stage rotation device 11 Penetration part 12 Length 13 Inner diameter of pipe 14 Length 15 Length Sa
Claims (18)
掃材を空気と共に付勢して他端方向に供給し、かつ前記
空気を前記研掃材と共に前記管内において軸周方向に回
転させて、前記管の内面を研掃する、管の内面研掃方
法。1. A pipe to be cleaned is urged with air to the inside of the pipe from one end of the pipe to be supplied with the air toward the other end, and the air is supplied together with the polishing material in an axial direction in the pipe. The inner surface of the pipe is cleaned by rotating the inner surface of the pipe.
動に設けられた推進翼に、前記空気を研掃材と共に付勢
して供給する方法である請求項１記載の管の内面研掃方
法。2. The inner surface cleaning of a pipe according to claim 1, wherein the method of rotating the air together with the cleaning material is a method of supplying the air together with the cleaning material to the stationary wing. Method.
研掃する管内に研掃材を含む空気を軸方向に供給し、該
空気に軸方向に対して斜めに、空気を付勢して供給する
方法である請求項１記載の管の研掃方法。3. The method of rotating air with the abrasive material comprises:
2. The method for cleaning a pipe according to claim 1, wherein the air containing the cleaning material is supplied in the axial direction into the pipe to be cleaned, and the air is supplied to the air obliquely with respect to the axial direction. .
前後２段に分けて行われる請求項１記載の管の内面研掃
方法。4. The method of rotating air with the abrasive material comprises:
2. The method for cleaning the inner surface of a pipe according to claim 1, wherein the method is performed in two stages, front and rear.
法は不動に設けられた推進翼に、空気を研掃材を共に付
勢して供給する方法であり、かつ後段の方法は、研掃す
る管内に、前記研掃材を含む空気に、軸方向に対して斜
めに空気を付勢して供給する方法である請求項４記載の
管の内面研掃方法。5. A method in the first stage for rotating air together with the abrasive material is a method in which air is supplied to an immovably provided propulsion wing together with the abrasive material. 5. The method for cleaning the inner surface of a pipe according to claim 4, wherein said method includes a step of supplying air containing said cleaning material obliquely to an axial direction into a pipe to be cleaned.
て回転させられる場合の、一回転する迄の長さは、その
回転の直径より長く形成されている請求項１、２、３、
４又は５記載の管の内面研掃方法。6. The method according to claim 1, wherein when the air is rotated in the pipe to be cleaned together with the cleaning material, the length of one rotation is longer than the diameter of the rotation.
6. The method for cleaning the inner surface of a pipe according to 4 or 5.
段、及び後段共一回転に要する長さは、回転の直径より
も大きく形成され、かつ後段の一回転に要する長さは前
段の一回転に要する長さより短く形成されている請求項
４又は５記載の管の内面研掃方法。7. When the air is rotated together with the cleaning material, the length required for one rotation in the first and second stages is larger than the diameter of the rotation, and the length required for one rotation in the second stage is one in the first stage. 6. The method for cleaning the inner surface of a pipe according to claim 4, wherein the pipe is formed shorter than a length required for rotation.
合したものである請求項１、２、３、４、５、６又は７
記載の管の内面研掃方法。8. The polishing material is a mixture of glass particles and synthetic resin particles.
The method for cleaning the inner surface of a pipe according to the above.
ている請求項８記載の管の内面研掃方法。9. The method according to claim 8, wherein the synthetic resin particles are formed of a urea resin.
該主体１に連通させられた、研掃材と共に空気を付勢し
て供給する供給装置２；前記主体１内に設けられた、前
記研掃材と空気を軸周方向に回転させる回転装置３；前
記主体１に形成された、研掃する管に連通する連通部
４；から成ることを特徴とする管の内面研掃装置。10. A main body 1 of a cleaning device formed in a tubular shape;
A supply device 2 that is in communication with the main body 1 and urges and supplies air together with the abrasive material; a rotation device 3 provided in the main body 1 for rotating the abrasive material and air in a circumferential direction of the shaft An inner surface cleaning device for a pipe, comprising: a communicating portion 4 formed in the main body 1 and communicating with a pipe to be cleaned.
れた推進翼５である請求項１０記載の管の内面研掃装
置。11. The apparatus according to claim 10, wherein the rotating device is a propulsion wing fixed to the main body.
端部６を連通部４方向に向けて斜めに貫通し、更に軸方
向に対して、それぞれ同一角度で斜めに形成された複数
の通気口７と、該通気口７に付勢した空気を供給する空
気供給装置８とから成ることを特徴とする請求項１０記
載の管の内面研掃装置。12. The rotating device 3 penetrates the main body 1 inward and outward, and penetrates the distal end portion 6 obliquely toward the communicating portion 4, and furthermore, a plurality of obliquely formed at the same angle with respect to the axial direction. 11. The inner surface cleaning apparatus for a pipe according to claim 10, comprising: a vent 7; and an air supply device 8 for supplying air urged to the vent 7.
回転装置１０から成る請求項１０記載の管の内面研掃装
置。13. The apparatus according to claim 10, wherein the rotating device comprises a front rotating device and a rear rotating device.
定された推進翼５であり、後段回転装置１０は主体１を
内外にかつ先端部６を連通部４方向に向けて斜めに貫通
し、更に軸方向に対してそれぞれ同一角度で斜めに形成
された複数の通気口７と、該通気口７に付勢した空気を
供給する空気供給装置８とから成る請求項１３記載の管
の内面研掃装置。14. The front-stage rotating device 9 is a propulsion wing 5 fixed to the main body 1 immovably, and the rear-stage rotating device 10 obliquely penetrates the main body 1 inside and outside and the front end portion 6 toward the communication portion 4 direction. 14. The pipe according to claim 13, further comprising a plurality of vents formed obliquely at the same angle with respect to the axial direction, and an air supply device for supplying air urged to the vents. Internal cleaning equipment.
て、回転させる研掃材と空気の一回転に要する長さ１２
が前記管の内径１３より大きくなるように形成されてい
る請求項１０、１１、１２、１３又は１４記載の管の内
面研掃装置。15. The rotating device 3 has a length 12 required for one rotation of the abrasive material to be rotated and air in the pipe to be cleaned.
The inner surface cleaning apparatus for a pipe according to claim 10, wherein the inner diameter of the pipe is larger than the inner diameter 13 of the pipe.
掃材を有する空気は、その一回転に要する長さ１４が、
前段回転装置９による同様な一回転する長さ１５より短
く形成されている請求項１３又は１４記載の管の内面研
掃装置。16. The air having the abrasive material rotated by the post-rotation device 10 has a length 14 required for one rotation.
15. The inner surface cleaning apparatus for a pipe according to claim 13, wherein the length is made shorter than the length of one rotation by the former rotation device.
混合したものである請求項１０、１１、１２、１３、１
４、１５又は１６記載の管の内面研掃装置。17. The cleaning material is a mixture of glass particles and synthetic resin particles.
17. The internal surface cleaning apparatus for a pipe according to 4, 15 or 16.
れている請求項１７記載の管の内面研掃装置。18. The apparatus according to claim 17, wherein the synthetic resin particles are formed of a urea resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9034949A JPH10232099A (en) | 1997-02-19 | 1997-02-19 | Method and device for grinding and sweeping internal surface of tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9034949A JPH10232099A (en) | 1997-02-19 | 1997-02-19 | Method and device for grinding and sweeping internal surface of tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10232099A true JPH10232099A (en) | 1998-09-02 |
Family
ID=12428425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9034949A Pending JPH10232099A (en) | 1997-02-19 | 1997-02-19 | Method and device for grinding and sweeping internal surface of tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10232099A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6728052B2 (en) | 2000-10-06 | 2004-04-27 | Hitachi, Ltd. | Recording/reproducing apparatus, error correcting coding method and information recording method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5616029B2 (en) * | 1978-11-25 | 1981-04-14 | ||
| JPS57187596A (en) * | 1981-05-13 | 1982-11-18 | Hitachi Ltd | Method of removing soil in pipe line |
| JPS5826998A (en) * | 1981-08-11 | 1983-02-17 | Rozai Chikuro Kk | Method of removing substance adhered to inside of tube |
| JPS5840184A (en) * | 1981-09-03 | 1983-03-09 | 厚地鉄工株式会社 | Method of polishing and cleaning inner surface of bend |
| JPS59227970A (en) * | 1983-06-10 | 1984-12-21 | Toshiba Corp | Abrasive |
| JPS60177087A (en) * | 1984-02-21 | 1985-09-11 | Mitsui Toatsu Chem Inc | Synthetic resin abrasive |
-
1997
- 1997-02-19 JP JP9034949A patent/JPH10232099A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5616029B2 (en) * | 1978-11-25 | 1981-04-14 | ||
| JPS57187596A (en) * | 1981-05-13 | 1982-11-18 | Hitachi Ltd | Method of removing soil in pipe line |
| JPS5826998A (en) * | 1981-08-11 | 1983-02-17 | Rozai Chikuro Kk | Method of removing substance adhered to inside of tube |
| JPS5840184A (en) * | 1981-09-03 | 1983-03-09 | 厚地鉄工株式会社 | Method of polishing and cleaning inner surface of bend |
| JPS59227970A (en) * | 1983-06-10 | 1984-12-21 | Toshiba Corp | Abrasive |
| JPS60177087A (en) * | 1984-02-21 | 1985-09-11 | Mitsui Toatsu Chem Inc | Synthetic resin abrasive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6728052B2 (en) | 2000-10-06 | 2004-04-27 | Hitachi, Ltd. | Recording/reproducing apparatus, error correcting coding method and information recording method |
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