JP3340297B2 - How to maintain the pipe - Google Patents
How to maintain the pipeInfo
- Publication number
- JP3340297B2 JP3340297B2 JP00266596A JP266596A JP3340297B2 JP 3340297 B2 JP3340297 B2 JP 3340297B2 JP 00266596 A JP00266596 A JP 00266596A JP 266596 A JP266596 A JP 266596A JP 3340297 B2 JP3340297 B2 JP 3340297B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- turbulence
- section
- pressure source
- tube
- 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 - Lifetime
Links
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- Cleaning In General (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば、地盤に埋
設されたガス管、水道管等の各種の管体内面についての
付着物の除去等のメンテナンスを行う管体のメンテナン
ス方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe maintenance method for performing maintenance such as removal of deposits on the inner surfaces of various pipes such as gas pipes and water pipes buried in the ground.
【０００２】[0002]
【従来の技術】周知のように、水道管、ガス管、ダクト
等の各種の管体は、長期間に亘って使用されると、その
内面に付着物（例えば、水道管の場合であれば、水垢、
錆等）が付着し、送給される水、ガス等の送給物に悪影
響を及ぼすばかりでなく、送給物の流れに対する抵抗と
なり、送給物が詰まったり、圧送するポンプ等に高負荷
がかかるなど問題も多く、定期的な除去が望まれてい
る。2. Description of the Related Art As is well known, various pipes such as water pipes, gas pipes, ducts and the like, when used for a long period of time, adhere to the inside of the pipes (for example, in the case of water pipes). , Scale,
Rust, etc.), which not only adversely affect the delivered material such as water and gas to be delivered, but also cause resistance to the flow of the delivered material. However, there are many problems such as the occurrence of such a problem, and periodic removal is desired.
【０００３】従来、かかる管体内面に付着した付着物を
除去する方法として、例えば地盤内に埋設された管体の
場合には、以下のようなメンテナンス方法が採られてい
た。 イ． 図１０に示すように、予め、地表に仮設の管体２
２０を設置しておき、地盤Ｇを掘削して地盤Ｇ内に埋設
された既設管体（図示せず）を所定長さ掘り出すととも
に、掘り出した部分を切断し、新たな管体２２１と取り
替えて再度布設する工程を繰り返し行う。 ロ． 図１１に示すように、既設管体２２２の埋設され
た地盤Ｇを所定長さを隔てて掘削するとともに、その一
部を露出させた後、既設管体２２２の露出部の一部を切
断する。そして、両端が開放された管体２２３内にブラ
シ２２４を取り付けたワイヤー２２５を挿入し、このブ
ラシ２２４で管体２２３内面を擦って付着物を除去す
る。Conventionally, the following maintenance method has been adopted as a method for removing such deposits adhering to the inner surface of a pipe, for example, in the case of a pipe buried in the ground. I. As shown in FIG. 10, a temporary pipe 2
20 is installed, the ground G is excavated, an existing pipe (not shown) buried in the ground G is dug out by a predetermined length, and the dug portion is cut and replaced with a new pipe 221. The process of laying again is repeated. B. As shown in FIG. 11, the ground G in which the existing pipe 222 is buried is excavated at a predetermined length, and after exposing a part thereof, a part of the exposed portion of the existing pipe 222 is cut. . Then, a wire 225 to which a brush 224 is attached is inserted into the tube 223 having both open ends, and the brush 224 rubs the inner surface of the tube 223 to remove extraneous matter.
【０００４】しかしながら、上述した従来の方法には次
のような課題が存在した。すなわち、イの方法では、埋
設された既設管体を所定長さ毎に新たな管体２２１に取
り替えるので、工期が長期間におよび、仮設の管体２２
０を別途設置する必要があるため、工費が高くなってい
た。また、管体２２０が埋設された地盤Ｇを全域にわた
って掘削するので、工事の際に発生する掘削土も大量と
なり、その管理・処分に費用が嵩み、工事費がさらに高
くならざるを得なかったほか、工事に伴い交通規制を行
わねばならない。一方、ロの方法では、イの方法のよう
に埋設された管体の取り替えは行わないものの、除去を
行う間隔が長くとれないので、工期が長期間に及び、仮
設の管体を別途設置する必要があり、工費が高くなって
いた。However, the above-mentioned conventional method has the following problems. That is, in the method (a), since the buried existing pipe is replaced with a new pipe 221 at a predetermined length, the construction period is long, and the temporary pipe 22 is not used.
Since it was necessary to separately install 0, the construction cost was high. In addition, since the ground G in which the pipe 220 is buried is excavated over the entire area, a large amount of excavated soil is generated at the time of construction, and the management and disposal of the excavated soil is expensive, and the construction cost must be further increased. In addition, traffic must be regulated along with the construction. On the other hand, in the method of (b), the buried pipe is not replaced as in the method of (a), but the interval for performing the removal is not long, so the construction period is long, and a temporary pipe is separately installed. Needed, construction cost was high.
【０００５】そこで、近年、かかる問題に鑑み、図１２
に示すように、既設管体２２６が埋設された地盤Ｇを所
定長さを隔てて掘削するとともに、該管体２２６の一部
を露出させ、この露出部の一部を切断し、両端が開放さ
れた管体２２６の一端をホース２２７によりコンプレッ
サー２２８に連結するとともに、他端に電気集塵機２２
９を介装した管体２３０を連結し、コンプレッサー２２
８によって約７Kg／ｃｍ2の圧縮空気を送り込んで管体
２２６内面に付着した付着物を除去する方法が採用され
ている。Therefore, in recent years, in view of such a problem, FIG.
As shown in the figure, the ground G in which the existing pipe 226 is buried is excavated at a predetermined length, a part of the pipe 226 is exposed, a part of the exposed portion is cut, and both ends are opened. One end of the pipe 226 is connected to the compressor 228 by a hose 227, and the other end of the electric dust collector 22 is connected to the other end.
9 is connected to the pipe 230, and the compressor 22
8 adopts a method in which compressed air of about 7 kg / cm 2 is sent to remove the deposits attached to the inner surface of the tube 226.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記の
方法においても、以下に示すようなさらなる問題が存在
した。 イ．除去を行う管体に枝管２３１がある場合、枝管２３
１内には圧縮空気が流入しないため、その内面の付着物
を除去することができない。 ロ．管体に高い圧力がかかるので、管体に劣化した部分
などがあれば、破損が生じる可能性があった。However, the above-mentioned method has the following additional problems. I. If there is a branch pipe 231 in the pipe to be removed, the branch pipe 23
Since compressed air does not flow into 1, it is not possible to remove deposits on the inner surface. B. Since high pressure is applied to the tube, there is a possibility that the tube may be damaged if there is a deteriorated portion or the like.
【０００７】本発明は、上記の課題に鑑みてなされたも
のであり、枝管がある場合にも適用でき、しかも管体に
劣化した部分がある場合にもその破損を抑さえることが
できる管体のメンテナンス方法の提供を目的としてい
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can be applied to the case where there is a branch pipe. It aims to provide body maintenance methods.
【０００８】[0008]
【課題を解決するための手段】本発明の請求項１に係る
管体のメンテナンス方法は、管体の一端側を負圧源に連
結して管路を形成するとともに、該管路の他端側に、通
過する気流を乱気流とする乱気流発生手段を設け、さら
に前記管路における前記乱気流発生手段の前記負圧源に
対し反対側に正圧源を連結させ、該正圧源を前記負圧源
に加えて作動させて前記管路内に乱気流を生ぜしめる管
体のメンテナンス方法であって、 前記乱気流発生手段と
して、外周部に複数の絞り羽根が放射状に設けられると
ともに、内周部に複数の羽根部材が放射状に設けられ、
かつ、一端側のフランジ部に複数の貫通孔が同一円上と
なるように設けられた円筒状の回転体を用い、前記負圧
源を作動させるのに伴い前記管体の他端側の開口から導
入される空気を、前記回転体の内周部の羽根部材に当て
て前記回転体を回転させるとともに、該回転体を通過さ
せて前記管体の一端側へ導き、さらに前記正圧源として
の圧縮空気を前記回転体の側方の絞り羽根に当たるよう
導入して前記回転体にさらに回転力を与えるとともに、
前記圧縮空気を前記貫通孔から前記管体の一端側へ導く
ことにより、前記管路内に乱気流を生ぜしめることを特
徴としている。これにより、負圧源を作動させることに
より管路内に気流が生じ、この気流が負圧源側に吸引さ
れることにより例えば管体内面に付着した付着物が除去
される。しかも、乱気流発生手段で気流が乱気流とされ
るため、例えば管体内面に付着した付着物が、位置的な
偏りを生じることなく全体にわたって確実に除去され
る。さらに、正圧源を負圧源に加えて作動させることに
より、管路内にさらに大きな乱気流を生じさせることが
できる。 According to a first aspect of the present invention, there is provided a method of maintaining a pipe, wherein one end of the pipe is connected to a negative pressure source to form a pipe, and the other end of the pipe is formed. on the side, providing a turbulence generating means to turbulence of air flow through, further
To the negative pressure source of the turbulence generating means in the pipeline
A positive pressure source is connected to the opposite side, and the positive pressure source is connected to the negative pressure source.
Pipes which are activated in addition to the pipes to create turbulence in said pipelines
A body maintenance method, wherein the turbulence generating means and
Then, when a plurality of diaphragm blades are radially provided on the outer peripheral portion,
In both cases, a plurality of blade members are radially provided on the inner peripheral portion,
In addition, a plurality of through holes are located on the same circle on the flange on one end.
Using a cylindrical rotating body provided so that the negative pressure
As the source is activated, it is guided through the opening at the other end of the tube.
The incoming air is applied to the blade member on the inner peripheral portion of the rotating body.
While rotating the rotating body, and passing through the rotating body.
To the one end side of the tube, and further as the positive pressure source
Of compressed air to impinge on the diaphragm blades on the side of the rotating body.
Introducing and giving further rotational force to the rotating body,
Guide the compressed air from the through hole to one end of the tube
Thereby producing turbulence in the pipe.
It is a sign. Thus, by operating the negative pressure source, an airflow is generated in the pipeline, and the airflow is sucked toward the negative pressure source, thereby removing, for example, deposits attached to the inner surface of the pipe. In addition, since the turbulence is generated by the turbulence generating means, for example, the adhered matter adhering to the inner surface of the tube is reliably removed without causing a positional deviation. In addition, the positive pressure source is operated in addition to the negative pressure source.
More turbulence in the pipeline
it can.
【０００９】本発明の請求項２に係る管体のメンテナン
ス方法は、請求項１に記載の管体のメンテナンス方法に
係り、前記管路内に乱気流を生ぜしめた状態で、該管路
内に研磨材を導入するようにしたことを特徴としてい
る。これにより、管路内に導入された研磨材が管路内に
生じた気流と共に負圧源側に吸引されると、管体内面に
付着した付着物に接触して該付着物を削り取りあるいは
付着物が削り取られた管体内面に接触して該管体内面を
削って研磨面を形成する研磨を行いつつ、付着物および
研磨材等を吸引除去する。しかも、乱気流発生手段で気
流が乱気流とされるため、管体内面に、位置的な偏りを
生じることなく全体にわたって確実に研磨および吸引除
去が施される。According to a second aspect of the present invention, there is provided a pipe maintenance method according to the first aspect, wherein a turbulence is generated in the pipe while the pipe is maintained in the pipe. It is characterized in that an abrasive is introduced. Thereby, when the abrasive introduced into the pipe is sucked to the negative pressure source side together with the airflow generated in the pipe, the abrasive comes into contact with the attached matter on the inner surface of the pipe, and the attached matter is scraped or attached. Attached matter and abrasives are removed by suction while polishing the inside of the pipe by shaving the inside of the pipe by contacting the inside of the pipe from which the kimono has been removed. Moreover, since the turbulence is generated by the turbulence generating means, polishing and suction removal can be reliably performed on the entire inner surface of the tube without causing positional deviation.
【００１０】本発明の請求項３に係る管体のメンテナン
ス方法は、請求項１に記載の管体のメンテナンス方法に
係り、前記管路内に乱気流を生ぜしめた状態で、該管路
内に塗料を導入するようにしたことを特徴としている。
これにより、管路内に導入された塗料が管路内に生じた
気流と共に負圧源側に吸引される際に、管体内面に接触
することにより管体内面が塗装される。しかも、乱気流
発生手段で気流が乱気流とされるため、管体内面が、位
置的な偏りを生じることなく全体にわたって確実に塗装
される。According to a third aspect of the present invention, there is provided the pipe maintenance method according to the first aspect, wherein a turbulence is generated in the pipe and the pipe is maintained in the pipe. The feature is that paint is introduced.
Thereby, when the paint introduced into the pipe is sucked to the negative pressure source side together with the airflow generated in the pipe, the pipe inner surface is painted by contacting the pipe inner surface. In addition, since the turbulence is generated by the turbulence generating means, the inner surface of the pipe is reliably coated over the entire surface without causing positional deviation.
【００１１】[0011]
【００１２】[0012]
【発明の実施の形態】本発明の管体のメンテナンス方法
の第１の実施の形態を図１〜図３を参照して説明する。
図１および図２は、本発明の第１の実施の形態を舗装路
下の地盤中に埋設された管体のメンテナンスに適用して
いる状況を示したものである。図において符号１は管
体、１ａは、管体１のメンテナンスを行う一つの区間
部、２は管体１から分岐した枝管、３は真空ポンプ（負
圧源）３ａを備えた吸引車、Ｒは舗装路、Ｇは地盤、Ｗ
は管路、４はエアコンプレッサ（正圧源）、５は乱気流
発生装置（乱気流発生手段）を示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a pipe body maintenance method according to the present invention will be described with reference to FIGS.
FIGS. 1 and 2 show a situation in which the first embodiment of the present invention is applied to maintenance of a pipe buried in the ground under a pavement. In the figure, reference numeral 1 denotes a pipe, 1a denotes one section for performing maintenance of the pipe 1, 2 denotes a branch pipe branched from the pipe 1, 3 denotes a suction car provided with a vacuum pump (negative pressure source) 3a, R is paved road, G is ground, W
Indicates a pipeline, 4 indicates an air compressor (positive pressure source), and 5 indicates a turbulence generator (turbulence generator).
【００１３】図１及び図２に示すように、管体１が埋設
された地盤Ｇには、区間部１ａの両端に対応する位置に
これら両端部を露出させるべくそれぞれ掘削坑６，７が
掘削されており、管体１の区間部１ａの掘削坑６，７内
に露出した両端部には、上方に向けて屈曲する引出管
８，９がそれぞれ連結されている。これらの引出管８，
９のそれぞれの区間部１ａに対し反対側には可撓性を有
するホース１１，１２が連結されており、一方のホース
１１の引出管８に対し反対側は、地上に停車した吸引車
３の真空ポンプ３ａの吸込側に連結されている。As shown in FIGS. 1 and 2, excavation pits 6 and 7 are excavated on the ground G in which the pipe body 1 is buried at positions corresponding to both ends of the section 1a so as to expose the both ends. Pull-out pipes 8 and 9 that are bent upward are connected to both ends of the section 1 a of the pipe 1 that are exposed in the excavation pits 6 and 7, respectively. These withdrawal pipes 8,
The hoses 11 and 12 having flexibility are connected to the respective sections 1a of the hose 9 on the opposite side, and the opposite side of the outlet pipe 8 of one of the hoses 11 is connected to the suction wheel 3 stopped on the ground. It is connected to the suction side of the vacuum pump 3a.
【００１４】そして、ホース１２の引出管９に対し反対
側の他端部には、連結管１３を介して乱気流発生装置５
が連結されており、該乱気流発生装置５には導入管１４
および開放管１５が連結されている。また、導入管１４
の乱気流発生装置５に対し反対側にはエアコンプレッサ
４が連結されており、導入管１４の乱気流発生装置５と
エアコンプレッサ４との間には、流量調整弁１６が設け
られている。開放管１５の乱気流発生装置５に対し反対
側の端部には消音器１７が連結されており、開放管１５
の前記端部は該消音器１７を介して外気に開放されてい
る。ここで、区間部１ａ、引出管８，９、ホース１１，
１２、連結管１３、乱気流発生装置５の内部流路（後述
する）、導入管１４および開放管１５が管路Ｗを構成し
ている。The turbulence generator 5 is connected to the other end of the hose 12 on the opposite side to the outlet pipe 9 via a connecting pipe 13.
Is connected to the turbulence generator 5, and the introduction pipe 14
And the open pipe 15 are connected. In addition, the introduction pipe 14
The air compressor 4 is connected to the other side of the turbulence generator 5, and a flow regulating valve 16 is provided between the turbulence generator 5 and the air compressor 4 in the introduction pipe 14. A silencer 17 is connected to an end of the open pipe 15 opposite to the turbulence generator 5.
Is open to the outside air through the silencer 17. Here, the section 1a, the outlet pipes 8, 9, the hose 11,
12, a connecting pipe 13, an internal flow path (to be described later) of the turbulence generator 5, an introduction pipe 14 and an open pipe 15 constitute a pipe W.
【００１５】次に、乱気流発生装置５およびその周辺部
の構成について図３を参照して説明する。乱気流発生装
置５は、一端開口部から漸次拡径した後に漸次縮径して
他端開口部に至る球状空間２０を有し前記一側開口部に
接合フランジ２１ａ，１３ａのボルト結合により連結管
１３が同軸をなして連結される球管体２１と、該球管体
２１の他側開口部に同軸をなして接合フランジ２１ｂ，
２２ｂのボルト結合により連結されるとともに、該球管
体２１から離間するほど大径となるテーパ状のテーパ管
体２２と、該テーパ管体２２の球管体２１に対し反対側
に接合フランジ２２ｃ，２３ｃのボルト接合により同軸
をなして連結される主管体２３とを有している。主管体
２３は、テーパ管体２２側に大径部２４が、該大径部２
４のテーパ管体２２に対し反対側に大径部２４より小径
の内径を有する中間径部２５が、該中間径部２５の大径
部２４に対し反対側に中間径部２５より小径の内径を有
する小径部２６が、それぞれ設けられた段付円筒状をな
している。そして、該主管体２３の小径部２６に、接合
フランジ２３ｄ，１５ｄのボルト接合により同軸をなし
て開放管１５が連結されており、主管体２３の大径部２
４に導入管１４が連結されている。Next, the configuration of the turbulence generator 5 and its peripheral parts will be described with reference to FIG. The turbulence generator 5 has a spherical space 20 which gradually increases in diameter from one end opening and then gradually reduces in diameter to reach the other end opening. The connecting pipe 13 is bolted to the one side opening by joining flanges 21a and 13a. Are coaxially connected to each other, and a joint flange 21b,
A tapered tapered tube 22 having a larger diameter as it is separated from the spherical tube 21 while being connected by a bolted connection 22b, and a joining flange 22c on the opposite side of the spherical tube 21 of the tapered tube 22 , 23c with the main pipe 23 connected coaxially by bolting. The main pipe 23 has a large-diameter portion 24 on the tapered pipe 22 side and the large-diameter portion 2.
An intermediate diameter portion 25 having an inner diameter smaller than the large diameter portion 24 on the opposite side to the tapered tube body 4 of the fourth, and an inner diameter smaller than the intermediate diameter portion 25 on the opposite side to the large diameter portion 24 of the intermediate diameter portion 25. Has a stepped cylindrical shape provided respectively. The open pipe 15 is coaxially connected to the small-diameter portion 26 of the main pipe body 23 by bolting the connecting flanges 23d and 15d, and the large-diameter portion 2 of the main pipe body 23 is connected.
4 is connected to an introduction pipe 14.
【００１６】主管体２３内には、装置本体部２８が設け
られている。装置本体部２８は、一側が主管体２３の小
径部２６に嵌合固定されるとともに他側が中間径部２５
側に突出する円筒状の支持部材２９と、該支持部材２９
の突出部分にベアリング３０を介して、軸方向移動が規
制された状態で回転自在に支持された略円筒状の回転体
３１とを有している。An apparatus main body 28 is provided in the main pipe 23. The device main body 28 has one side fitted and fixed to the small diameter portion 26 of the main pipe 23 and the other side fitted to the intermediate diameter portion 25.
A cylindrical support member 29 protruding to the side;
And a substantially cylindrical rotating body 31 rotatably supported via a bearing 30 in a state where movement in the axial direction is restricted.
【００１７】回転体３１は、一端にフランジ部３１ａが
形成されることにより、一側が所定径の第一外周部３２
とされ他側が第一外周部３２より大径の第二外周部３３
とされた段付きの外周形状をなすとともに、内周部３４
が支持部材２９の内径と同径とされている。そして、支
持部材２９にベアリング３０を介して支持された状態
で、回転体３１は、支持部材２９と同軸をなすととも
に、第一外周部３２が主管体２３の中間径部２５との間
に若干の隙間を、第二外周部３３が主管体２３の大径部
２４との間に若干の隙間を持ち、これらの隙間には回転
体３１の回転を許容しつつこれら隙間を閉塞させるシー
ル部材３５，３６が設けられている。The rotating body 31 has a flange portion 31a formed at one end so that one side has a first outer peripheral portion 32 having a predetermined diameter.
The second outer peripheral portion 33 whose other side is larger in diameter than the first outer peripheral portion 32
And the inner peripheral portion 34
Are the same as the inner diameter of the support member 29. In a state where the rotating body 31 is supported by the supporting member 29 via the bearing 30, the rotating body 31 is coaxial with the supporting member 29, and the first outer peripheral portion 32 is slightly positioned between the first outer peripheral portion 32 and the intermediate diameter portion 25 of the main pipe 23. The second outer peripheral portion 33 has a slight gap between itself and the large-diameter portion 24 of the main pipe body 23, and a seal member 35 for closing the gap while allowing the rotation of the rotating body 31 is provided in these gaps. , 36 are provided.
【００１８】第一外周部３２の第二外周部３３近傍に
は、絞り羽根３７が複数放射状に等ピッチで固定されて
いる。これら絞り羽根３７は、回転体３１の軸線に対し
すべて同一の所定角度（例えば２５゜）で傾斜されてお
り、回転体３１が支持部材２９に支持された状態で、主
管体２３とシール部材３５，３６と回転体３１とで画成
される環状の導入室３８内に位置することになる。A plurality of aperture blades 37 are fixed radially at equal pitches in the vicinity of the second outer peripheral portion 33 of the first outer peripheral portion 32. The diaphragm blades 37 are all inclined at the same predetermined angle (for example, 25 °) with respect to the axis of the rotating body 31, and the main pipe 23 and the sealing member 35 are held in a state where the rotating body 31 is supported by the supporting member 29. , 36 and the rotating body 31 are located in an annular introduction chamber 38.
【００１９】また、フランジ部３１ａには、一端が絞り
羽根３７間の隙間に開口するとともに他端がフランジ部
３１ａの絞り羽根３７に対し反対側に開口する貫通孔４
０が複数同一円上に等ピッチで配置されて設けられてい
る。この貫通孔４０は、絞り羽根３７に対し反対側が内
側に位置するようテーパ管体２２の内周と同一の傾斜角
で傾斜されており、絞り羽根３７に対し反対側は他の部
分より小径に絞られた形状をなしている。The flange portion 31a has a through hole 4 having one end opening in the gap between the aperture blades 37 and the other end opening on the opposite side of the flange portion 31a from the aperture blade 37.
A plurality of 0s are arranged at the same pitch on the same circle. The through hole 40 is inclined at the same inclination angle as the inner circumference of the tapered tube body 22 so that the opposite side to the diaphragm blade 37 is located inside, and the diameter of the opposite side to the diaphragm blade 37 is smaller than that of other parts. It has a narrowed shape.
【００２０】さらに、内周部３４にも羽根部材４１が、
複数放射状に等ピッチで配置されて固定されており、こ
れら羽根部材４１は、回転体３１の軸線に対しすべて同
一の所定角度で傾斜されている。ここで、導入管１４
は、導入室３８内に、絞り羽根３７に向けて開口してい
る。なお、球管体２１、テーパ管体２２および主管体２
３の内側と、装置本体部２８以外の部分とが、乱気流発
生装置５の内部流路４２を構成している。Further, the blade member 41 is also provided on the inner peripheral portion 34.
A plurality of blades 41 are arranged radially at a constant pitch and fixed, and the blade members 41 are all inclined at the same predetermined angle with respect to the axis of the rotating body 31. Here, the introduction pipe 14
Is opened toward the diaphragm blade 37 in the introduction chamber 38. The spherical tube 21, the tapered tube 22, and the main tube 2
3 and a portion other than the device main body 28 constitute an internal flow path 42 of the turbulence generator 5.
【００２１】この装置本体部２８は、支持部材２９およ
び回転体３１の内周側に支持部材２９から回転体３１方
向に空気が通過するよう気流が生じると、羽根部材４１
が該気流により回転体３１を所定方向に回転させるよう
力を受け、該回転体３１が前記所定方向に回転する。こ
れにより、回転体３１から内周側を通って出る気流は、
羽根部材４１の角度と回転とで渦巻き状の乱気流とな
る。When an airflow is generated on the inner peripheral side of the supporting member 29 and the rotating body 31 so that air passes from the supporting member 29 toward the rotating body 31, the blade body 41
Receives a force to rotate the rotating body 31 in a predetermined direction by the airflow, and the rotating body 31 rotates in the predetermined direction. As a result, the airflow that exits from the rotating body 31 through the inner peripheral side is
A spiral turbulence is formed by the angle and rotation of the blade member 41.
【００２２】また、導入管１４から圧縮空気が導入され
ると、該圧縮空気は、絞り羽根３７に当って回転体３１
を前記と同じ所定方向に回転させる力を及ぼし、該回転
体３１を前記所定方向に回転させる。すると、導入室３
８内に導入された圧縮空気が絞り羽根３７の形状と回転
で貫通孔４０方向に導かれ、貫通孔４０から噴出され
る。これにより、貫通孔４０からテーパ管体２２側に出
る圧縮空気は、回転体３１の回転すなわち貫通孔４０の
公転で渦巻き状の乱気流となる。なお、上記いずれの場
合も、乱気流の渦巻きの方向は、進行方向に向かって左
巻方向となるよう設定されている。When compressed air is introduced from the introduction pipe 14, the compressed air impinges on the diaphragm blades 37 and rotates the rotating body 31.
Exerts a force to rotate the rotating body 31 in the same predetermined direction as described above, thereby rotating the rotating body 31 in the predetermined direction. Then, introduction room 3
The compressed air introduced into 8 is guided in the direction of the through hole 40 by the shape and rotation of the diaphragm blade 37, and is ejected from the through hole 40. As a result, the compressed air that flows out of the through hole 40 toward the tapered pipe 22 becomes a spiral turbulent air flow due to the rotation of the rotating body 31, that is, the revolution of the through hole 40. In each case, the direction of the turbulent airflow is set to be counterclockwise in the traveling direction.
【００２３】次に、第１の実施の形態によりメンテナン
スとして上記管体１の内面に付着した付着物を除去する
工程について説明する。なお、このメンテナンス方法
は、当然のことながら管体１内を送給されるガス等の管
体１内への供給が停止された状態で行なわれる。まず、
管体１の埋設された地盤Ｇに所定の間隔を隔てるととも
に、管体１の一部が露出するように所定深さまで掘削し
て掘削坑６，７を形成する。そして、この管体１の露出
部分を所定長さだけ切断し、両端が開放状態となった管
体１をメンテナンスを行う区間部１ａとする。そして、
この区間部１ａの両端部に前記引出管８，９を連結させ
るとともに、区間部１ａ以外の切断した管体１の端部を
バルブ４４および端部止水板４５で止める。Next, a description will be given of a process of removing the deposits attached to the inner surface of the tube 1 as maintenance according to the first embodiment. It is to be noted that this maintenance method is performed in a state in which the supply of the gas or the like to be fed into the pipe 1 to the pipe 1 is stopped. First,
Excavation pits 6 and 7 are formed by leaving a predetermined interval on the ground G in which the pipe 1 is embedded and excavating to a predetermined depth so that a part of the pipe 1 is exposed. Then, the exposed portion of the tubular body 1 is cut by a predetermined length, and the tubular body 1 whose both ends are open is defined as a section 1a for maintenance. And
The extraction pipes 8 and 9 are connected to both ends of the section 1a, and the cut end of the tube 1 other than the section 1a is stopped by the valve 44 and the end water stop plate 45.
【００２４】次に、引出管８，９にそれぞれ可撓性のホ
ース１１，１２を取付け、一方のホース１１を舗装路Ｒ
の路側に待機させた吸引車３の真空ポンプ３ａに接続さ
せるとともに、他方のホース１２には、連結管１３と、
乱気流発生装置５と、流量調整弁１６を含む導入管１４
と、エアコンプレッサ４と、消音器１７を含む開放管１
５とを連結させて、管路Ｗを形成する。Next, flexible hoses 11 and 12 are attached to the outlet pipes 8 and 9, respectively, and one hose 11 is connected to the pavement road R.
Is connected to the vacuum pump 3a of the suction wheel 3 which is on standby on the roadside, and the other hose 12 is connected to a connecting pipe 13;
Turbulence generator 5 and introduction pipe 14 including flow control valve 16
And the open pipe 1 including the air compressor 4 and the silencer 17
5 to form a conduit W.
【００２５】そして、流量調整弁１６で導入管１４を閉
塞状態とし、エアコンプレッサ４を作動させることな
く、吸引車３の真空ポンプ３ａを作動させて吸引を行う
と、管路Ｗ内に開放管１５から真空ポンプ３ａ方向への
気流を生ぜしめることになり、該気流が乱気流発生装置
５の装置本体部２８の内周側を通過することにより回転
体３１を回転させ、結果として上記の様に気流が乱気流
となって、区間部１ａの内面に付着した付着物を真空ポ
ンプ３ａ側に移動させて除去する。以上のような工程を
順次区間部毎に行うことにより管体１内の付着物の除去
のメンテナンスを行う。When the introduction pipe 14 is closed by the flow regulating valve 16 and the vacuum pump 3a of the suction wheel 3 is operated to operate without operating the air compressor 4, an open pipe is inserted into the pipe W. 15 to the vacuum pump 3a, and the air flow passes through the inner peripheral side of the device main body 28 of the turbulence generator 5 to rotate the rotating body 31. As a result, as described above, The airflow becomes a turbulent airflow, and deposits attached to the inner surface of the section 1a are moved to the vacuum pump 3a side and removed. By performing the above steps sequentially for each section, maintenance for removing the adhered matter in the tube 1 is performed.
【００２６】このように、上記第１の実施の形態によれ
ば、吸引車３の真空ポンプ３ａを作動させて吸引を行う
ことにより管路Ｗ内に気流を生ぜしめて、該気流により
区間部１ａの内面に付着した付着物を除去するようにし
たので、枝管２内面にも吸引力が働き、枝管２を含む区
間部１ａの全域にわたって付着物を除去することができ
る。また、真空ポンプ３ａにより管路Ｗ内に気流を生じ
させるようにしたので、管路Ｗ内が高圧にならず、区間
部１ａに劣化した部分がある場合にも、その破損を抑さ
えることができる。しかも、乱気流発生装置５で気流が
乱気流とされるため、区間部１ａの内面に付着した付着
物を、位置的な偏りを生じることなく全体にわたって確
実に除去することができる。なお、第１の実施の形態に
おいては、流量調整弁１６およびエアコンプレッサ４が
不要であるため、これらを設けずに導入管１４を閉塞さ
せてもよい。As described above, according to the first embodiment, by operating the vacuum pump 3a of the suction wheel 3 to perform suction, an air flow is generated in the pipe W, and the section 1a is generated by the air flow. Since the attached matter attached to the inner surface of the branch pipe 2 is removed, the suction force acts on the inner surface of the branch pipe 2, and the attached matter can be removed over the entire area of the section 1 a including the branch pipe 2. Further, since the air flow is generated in the pipe W by the vacuum pump 3a, even if the inside of the pipe W does not have a high pressure and there is a degraded portion in the section 1a, the breakage thereof can be suppressed. it can. Moreover, since the turbulence is generated by the turbulence generator 5, it is possible to reliably remove the deposits adhered to the inner surface of the section 1 a without causing positional deviation. In the first embodiment, since the flow control valve 16 and the air compressor 4 are unnecessary, the introduction pipe 14 may be closed without providing these.
【００２７】次に、本発明の管体１のメンテナンス方法
の第２の実施の形態を図１〜図３を参照して説明する。
なお、第２の実施の形態は、第１の実施の形態に加えて
エアコンプレッサ４を動作させる方法である。Next, a description will be given of a second embodiment of the maintenance method for the pipe body 1 according to the present invention with reference to FIGS.
Note that the second embodiment is a method of operating the air compressor 4 in addition to the first embodiment.
【００２８】まず、第１の実施の形態と同様にして管路
Ｗを形成する。そして、流量調整弁１６で導入管１４の
流量を所定流量が得られるよう調整し、吸引車３の真空
ポンプ３ａを作動させて吸引を行うとともに、エアコン
プレッサ４を作動させて補助的な押込みを行って、管路
Ｗ内に乱気流発生装置５から真空ポンプ３ａ方向へのよ
り大きな気流を生ぜしめることになる。ここで、上記に
おいて、エアコンプレッサ４の圧縮空気は、乱気流発生
装置５の回転体３１を回転させ、結果として貫通孔４０
から吐出される圧縮空気で上記の様に気流が乱気流とな
り、装置本体部２８の内側を通過する気流も、上記の様
に乱気流となって、区間部１ａの内面に付着した付着物
を移動させて除去する。First, a pipe W is formed in the same manner as in the first embodiment. Then, the flow rate of the introduction pipe 14 is adjusted by the flow rate adjusting valve 16 so as to obtain a predetermined flow rate, the vacuum pump 3a of the suction wheel 3 is operated to perform suction, and the air compressor 4 is operated to perform auxiliary pushing. As a result, a larger airflow is generated in the pipe W from the turbulence generator 5 toward the vacuum pump 3a. Here, in the above, the compressed air of the air compressor 4 rotates the rotating body 31 of the turbulence generator 5, and as a result, the through hole 40
As described above, the airflow becomes turbulent by the compressed air discharged from the airbag, and the airflow passing through the inside of the apparatus main body 28 also becomes turbulent as described above, and the attached matter on the inner surface of the section 1a is moved. To remove.
【００２９】このように、上記第２の実施の形態によれ
ば、吸引車３の真空ポンプ３ａに加えてエアコンプレッ
サ４を作動させることにより、管路Ｗ内にさらに大きな
乱気流を発生させ、この乱気流により区間部１ａの内面
に付着した付着物を除去するようにしたので、第１の実
施の形態に比べて、さらに、区間部１ａの内面に付着し
た付着物の除去を確実に短時間で行うことができる。ま
た、メンテナンスを行う区間部１ａの長さを長くして、
地盤の掘削間隔を長くすることもできるので、工期を大
幅に短縮することができる。なお、この場合、エアコン
プレッサ４は、あくまで真空ポンプ３ａによる吸引の補
助的な役割をするものであり、このため真空ポンプ３ａ
による吸引流量より小さい流量（例えば１／３程度）で
空気を吐出させることになる。As described above, according to the second embodiment, by operating the air compressor 4 in addition to the vacuum pump 3a of the suction wheel 3, a larger turbulent air flow is generated in the pipeline W. Since the adhering matter adhering to the inner surface of the section 1a is removed by the turbulent airflow, the adhering matter adhering to the inner surface of the section 1a can be more reliably removed in a shorter time than in the first embodiment. It can be carried out. In addition, by increasing the length of the section 1a where maintenance is performed,
Since the excavation interval of the ground can be extended, the construction period can be significantly reduced. In this case, the air compressor 4 serves only to assist the suction by the vacuum pump 3a.
Air is discharged at a flow rate smaller than the suction flow rate (for example, about 1/3).
【００３０】次に、本発明の管体１のメンテナンス方法
の第３の実施の形態を主に図４を参照して説明する。な
お、第３の実施の形態は、第１の実施の形態の区間部１
ａの真空ポンプ３ａに対し反対側の開放端側と乱気流発
生装置５との間に、ホース１２および連結管１３に代え
て連結管４６を連結させ、該連結管４６上に研磨材導入
装置４７を取付け、該研磨材導入装置４７で研磨材４８
を導入させるもので、研磨材４８によって管体１の内面
に付着した付着物を削り取りあるいは付着物が削り取ら
れた内面を削って研磨面を形成する研磨と、付着物およ
び研磨材等の除去とを、メンテナンスとして行う方法で
ある。この研磨材導入装置４７は、連結管４６にフルボ
ワーバルブ４９を介して研磨材充填用ホッパー５０が取
付けられた構成とされており、連結管４６には、中間に
コ字型の屈曲管部４６ａが設けられている。Next, a third embodiment of the maintenance method for the tube 1 of the present invention will be described mainly with reference to FIG. Note that the third embodiment is based on the section 1 of the first embodiment.
a connecting pipe 46 instead of the hose 12 and the connecting pipe 13 is connected between the open end side opposite to the vacuum pump 3a and the turbulence generator 5; Is attached, and the abrasive material 48 is
The polishing is performed to scrape off the deposits attached to the inner surface of the tubular body 1 by the abrasive 48 or to scrape the inner surface from which the deposits are removed to form a polished surface, and to remove the deposits and the abrasives. Is performed as maintenance. The abrasive introduction device 47 has a configuration in which a polishing material filling hopper 50 is attached to a connection pipe 46 via a full bower valve 49, and the connection pipe 46 has a U-shaped bent pipe portion in the middle. 46a is provided.
【００３１】第３の実施の形態では、第１の実施の形態
に対し、以下の相違した工程で管路Ｗを形成する。すな
わち、第１の実施の形態のホース１２に代えて屈曲管部
４６ａを有する連結管４６を連結させ、該連結管４６
に、乱気流発生装置５と、流量調整弁１６を含む導入管
１４と、エアコンプレッサ４と、消音器１７を含む開放
管１５とを連結させて、管路Ｗを形成するとともに、連
結管４６上に研磨材導入装置４７を取り付ける。In the third embodiment, a conduit W is formed in the following different steps from the first embodiment. That is, instead of the hose 12 of the first embodiment, a connecting pipe 46 having a bent pipe portion 46a is connected, and the connecting pipe 46 is connected to the connecting pipe 46.
The turbulence generator 5, the introduction pipe 14 including the flow control valve 16, the air compressor 4, and the open pipe 15 including the silencer 17 are connected to form a pipe W, and Is attached with an abrasive introduction device 47.
【００３２】そして、流量調整弁１６で導入管１４を閉
塞状態とし、エアコンプレッサ４を作動させることな
く、吸引車３の真空ポンプ３ａを作動させて吸引を行う
と、管路Ｗ内に開放管１５から真空ポンプ３ａ方向への
気流を生ぜしめることになり、該気流が乱気流発生装置
５の装置本体部２８の内側を通過することにより回転体
３１を回転させ、結果として上記の様に気流が乱気流と
なって、区間部１ａの内面に付着した付着物を除去する
とともに、このように区間部１ａ内に乱気流を生じさせ
た状態で、フルボワーバルブ４９を開いてホッパー５０
内の研磨材４８を乱気流と共に区間部１ａ内に導入す
る。すると、研磨材４８は真空ポンプ３ａ方向に移動す
る際に区間部１ａの内面の付着物に接触して該付着物を
削り取りあるいは付着物が削り取られた区間部１ａの内
面に接触して該区間部１ａの内面を削って研磨面を形成
する。一方、付着物および研磨材等は前記乱気流で移動
されて除去される。以上のような工程を順次区間部毎に
行う。When the suction pipe 14 is closed by the flow control valve 16 and the vacuum pump 3a of the suction wheel 3 is operated without operating the air compressor 4, suction is performed. 15 generates an airflow in the direction of the vacuum pump 3a, and the airflow passes through the inside of the device main body 28 of the turbulence generator 5 to rotate the rotating body 31. As a result, the airflow is generated as described above. The turbulent air flow removes the deposits adhering to the inner surface of the section 1a. In this state where the turbulence is generated in the section 1a, the full bower valve 49 is opened and the hopper 50 is opened.
Is introduced into the section 1a together with the turbulence. Then, when moving in the direction of the vacuum pump 3a, the abrasive material 48 comes into contact with the deposits on the inner surface of the section 1a to scrape off the deposits or contacts the inner surface of the section 1a from which the deposits have been scraped to contact the section 1a. The inner surface of the portion 1a is shaved to form a polished surface. On the other hand, the deposits and the abrasives are removed by being moved by the turbulence. The above steps are sequentially performed for each section.
【００３３】このように、第３の実施の形態によれば、
真空ポンプ３ａを作動させて管路Ｗ内に気流を生ぜし
め、気流を真空ポンプ３ａ側に吸引させるとともに、研
磨材４８を乱気流と共に区間部１ａ内に導入して、区間
部１ａの内面の付着物に研磨材４８を接触させて該付着
物を削り取りあるいは付着物が削り取られた区間部１ａ
の内面に接触して該内面を削って研磨面を形成すること
になるため、第１の実施の形態に比べて、強固に付着し
た錆等の付着物を除去することができた上で研磨面を形
成する研磨を行うことができる。しかも、乱気流発生装
置５で気流が乱気流とされるため、研磨材４８を位置的
な偏りを生じることなく全体に接触させて区間部１ａの
内面全体を研磨することができる。なお、第３の実施の
形態においては、流量調整弁１６およびエアコンプレッ
サ４が不要であるため、これらを設けずに導入管１４を
閉塞させてもよい。As described above, according to the third embodiment,
The vacuum pump 3a is operated to generate an air flow in the pipe W, and the air flow is sucked to the vacuum pump 3a side, and the abrasive 48 is introduced into the section 1a together with the turbulent air flow, so that the inner surface of the section 1a is attached. The abrasive material 48 is brought into contact with the kimono to scrape off the attached matter or the section 1a where the attached matter is scraped off.
Since the inner surface is brought into contact with the inner surface and is ground to form a polished surface, compared to the first embodiment, it is possible to remove adhered substances such as rust and the like firmly adhered, and then perform polishing. Polishing to form a surface can be performed. Moreover, since the turbulence is generated by the turbulence generator 5, the entire surface of the section 1 a can be polished by bringing the abrasive 48 into contact with the whole without causing positional deviation. In the third embodiment, since the flow control valve 16 and the air compressor 4 are not required, the introduction pipe 14 may be closed without providing them.
【００３４】次に、本発明の管体のメンテナンス方法の
第４の実施の形態を主に図４を参照して説明する。な
お、第４の実施の形態は、第３の実施の形態に加えてエ
アコンプレッサ４を動作させる方法である。Next, a fourth embodiment of the tube maintenance method of the present invention will be described mainly with reference to FIG. Note that the fourth embodiment is a method of operating the air compressor 4 in addition to the third embodiment.
【００３５】まず、第３の実施の形態と同様にして管路
Ｗを形成する。そして、流量調整弁１６で導入管１４の
流量が所定流量となるよう調整し、吸引車３の真空ポン
プ３ａを作動させて吸引を行うとともに、エアコンプレ
ッサ４を作動させて補助的な押込みを行って、管路Ｗ内
に乱気流発生装置５から真空ポンプ３ａ方向へのより大
きな乱気流を生ぜしめ、研磨材４８を大きな乱気流と共
に区間部１ａ内に導入して、区間部１ａの内面の付着物
に研磨材４８を接触させて区間部１ａの内面を研磨する
ことになる。First, a pipe W is formed in the same manner as in the third embodiment. Then, the flow rate of the introduction pipe 14 is adjusted to a predetermined flow rate by the flow rate adjustment valve 16, and the vacuum pump 3a of the suction wheel 3 is operated to perform suction, and the air compressor 4 is operated to perform auxiliary pushing. As a result, a larger turbulence is generated from the turbulence generator 5 in the direction of the vacuum pump 3a in the pipe W, and the abrasive 48 is introduced into the section 1a together with the large turbulence to adhere to the inner surface of the section 1a. The abrasive 48 is brought into contact with the inner surface of the section 1a to be polished.
【００３６】このように、第４の実施の形態によれば、
吸引車３の真空ポンプ３ａに加えてエアコンプレッサ４
を作動させることにより、管路Ｗ内にさらに大きな乱気
流を発生させ、この大きな乱気流と共に研磨材４８を区
間部１ａ内に導入して区間部１ａの内面を研磨するよう
にしたので、第３の実施の形態に比べて、さらに、区間
部１ａの内面に付着した付着物の除去および研磨を確実
に短時間で行うことができる。また、メンテナンスを行
う区間部１ａの長さを長くして、地盤の掘削間隔を長く
することもできるので、工期を大幅に短縮することがで
きる。なお、この場合も、エアコンプレッサ４は、あく
まで真空ポンプ３ａによる吸引の補助的な役割をするも
のであり、このため真空ポンプ３ａによる吸引流量より
小さい流量（例えば１／３程度）で空気を吐出させるこ
とになる。As described above, according to the fourth embodiment,
In addition to the vacuum pump 3a of the suction wheel 3, an air compressor 4
, A larger turbulence is generated in the pipe W, and the abrasive 48 is introduced into the section 1a together with the large turbulence to polish the inner surface of the section 1a. Compared to the embodiment, it is possible to more reliably remove and polish extraneous matter adhering to the inner surface of the section 1a in a shorter time. In addition, since the length of the section 1a where maintenance is performed can be lengthened and the excavation interval of the ground can be lengthened, the construction period can be significantly reduced. In this case as well, the air compressor 4 merely serves to assist the suction by the vacuum pump 3a, and therefore discharges air at a flow rate smaller than the suction flow rate by the vacuum pump 3a (for example, about 1/3). Will be.
【００３７】次に、本発明の管体のメンテナンス方法の
第５の実施の形態を主に図５〜図７を参照して説明す
る。なお、第５の実施の形態は、第３の実施の形態の研
磨材導入装置４７の代りに錆止め用等の塗料を導入する
塗料導入装置５２を設け、該塗料導入装置５２で塗料を
導入させることにより、メンテナンスとして塗装を施す
方法である。Next, a fifth embodiment of the tube maintenance method of the present invention will be described mainly with reference to FIGS. In the fifth embodiment, a paint introduction device 52 for introducing paint for rust prevention or the like is provided in place of the abrasive introduction device 47 of the third embodiment, and the paint is introduced by the paint introduction device 52. This is a method of applying painting as maintenance.
【００３８】この塗料導入装置５２は、図５に示すよう
に、連結管４６の途中に連結されるインジェクター装置
５３と、該インジェクター装置５３に圧縮空気を供給す
るエアコンプレッサ５４と、インジェクター装置５３に
塗料を供給する塗料供給装置５５とで構成されている。As shown in FIG. 5, the paint introducing device 52 includes an injector device 53 connected in the middle of the connecting pipe 46, an air compressor 54 for supplying compressed air to the injector device 53, and an injector device 53. And a paint supply device 55 for supplying paint.
【００３９】インジェクター装置５３は、一端に連結管
４６の乱気流発生装置５側に連結される導入口１０２
を、他端に連結管４６の真空ポンプ３ａ側に連結される
排出口１０３を備えた管状体１０４から構成されてお
り、この管状体１０４は、第１〜第３の管体１０５〜１
０７がそれぞれの端部の接合フランジの間にパッキン
（図示せず）を介してボルトまたは、ボルト・ナットで
締結され連結されてなるものである。第１の管体１０５
は、一端に前記導入口１０２を、他端に第２の管体１０
６に連通する連通口１０８を有して略直線状に伸びる略
円形断面のものであり、その端部には接合フランジ１０
５ａ、１０５ｂが形成されている。また、その内径はク
リーニングを行う区間部１ａと略同径とされており、連
通口１０８側の接合フランジ１０５ｂの非接合面側に
は、圧縮空気および塗料の導入口１０９ａを備えた導入
室１０９が設けられている。さらに、接合フランジ１０
５ｂの半径方向中間部には導入室１０９…に連通する連
通孔１１０…が接合フランジ１０５ｂの周方向に沿って
形成され（図７参照）、これら連通孔１１０…にはノズ
ル１１０ａが装着されている。The injector 53 has an inlet 102 connected at one end to the turbulence generator 5 side of the connecting pipe 46.
At the other end is provided with a tubular body 104 provided with a discharge port 103 connected to the vacuum pump 3a side of the connecting pipe 46. The tubular body 104 is composed of first to third tubular bodies 105-1 to 105-1.
Reference numeral 07 denotes a connection formed by fastening bolts or bolts and nuts between the joining flanges at the respective ends via a packing (not shown). First tube 105
Has the inlet 102 at one end and the second tube 10 at the other end.
6 has a substantially circular cross section extending substantially linearly and having a communication port 108 communicating with
5a and 105b are formed. The inner diameter is substantially the same as that of the section 1a to be cleaned, and an inlet chamber 109 having an inlet 109a for compressed air and paint is provided on the non-joining surface side of the joining flange 105b on the communication port 108 side. Is provided. Further, the joining flange 10
A communication hole 110 communicating with the introduction chambers 109 is formed along the circumferential direction of the joining flange 105b at a radially intermediate portion of 5b (see FIG. 7), and a nozzle 110a is mounted in these communication holes 110. I have.
【００４０】第２の管体１０６は、一端に前記第１の管
体１０５に、他端に第３の管体１０７に連通する連通口
１１１、１１２を有する断面切頭円錐状の管体であり、
その両端には接合フランジ１０６ａ、１０６ｂが形成さ
れている。そして、第１の管体１０５との接合端は、前
記ノズル１１０ａを囲繞するように形成され、また、第
３の管体１０７との接合端の内径は、前記区間部１ａの
内径より小となるように形成されており、その内径は導
入口１０２側から排出口１０３に向けて漸次縮径するよ
うに形成されている。The second tube 106 is a truncated conical tube having communication ports 111 and 112 at one end communicating with the first tube 105 and communicating with the third tube 107 at the other end. Yes,
At both ends, joining flanges 106a and 106b are formed. The joint end with the first tube 105 is formed to surround the nozzle 110a, and the inside diameter of the joint end with the third tube 107 is smaller than the inside diameter of the section 1a. The inner diameter is formed so as to gradually decrease from the inlet 102 toward the outlet 103.
【００４１】第３の管体１０７は、一端に前記第２の管
体１０６に連通する連通孔１１３が、他端に排出口１０
３が形成され、第２の管体１０６との接合端から漸次拡
径した後に漸次縮径して排出口１０３に連通する球状空
間Ｓを有する管体であり、その両端には接合フランジ１
０７ａ、１０７ｂが形成されている。The third tube 107 has a communication hole 113 at one end communicating with the second tube 106, and a discharge port 10 at the other end.
3 is a tube having a spherical space S that gradually increases in diameter from the joint end with the second tube 106 and then gradually reduces in diameter and communicates with the discharge port 103.
07a and 107b are formed.
【００４２】なおここで、第２の管体１０６および第３
の管体１０７は、それぞれ狭搾部１１４および混合部１
１５を構成しており、また、前記ノズル１１０ａ…は、
圧縮空気用と塗料用のものが交互に配設されるととも
に、それらの射的は、圧縮空気および塗料が側面視して
狭搾部１１４の内面に沿い第２第３の管体１０６、１０
７の接合面の近傍で交差しながら混合部１１５の湾曲す
る内面に向けて噴射されるように設定されている。Here, the second tube 106 and the third
Of the narrowing section 114 and the mixing section 1
15 and the nozzles 110a.
The one for the compressed air and the one for the paint are alternately arranged, and their projections are such that the compressed air and the paint are disposed along the inner surface of the narrowing portion 114 in a side view and the second and third tubes 106, 10
7 is set so as to be jetted toward the curved inner surface of the mixing unit 115 while intersecting near the joining surface of No. 7.
【００４３】第５の実施の形態では、第３の実施の形態
に対し、以下の相違した工程で管路Ｗを形成する。すな
わち、区間部１ａに、インジェクター装置５３とともに
連結管４６を連結させ、該連結管４６に、乱気流発生装
置５と、流量調整弁１６を含む導入管１４と、エアコン
プレッサ４と、消音器１７を含む開放管１５とを連結さ
せて管路Ｗを形成するとともに、インジェクター装置５
３にエアコンプレッサ５４と塗料供給装置５５とを連結
させる。In the fifth embodiment, the pipe W is formed in the following different steps from the third embodiment. That is, the connecting pipe 46 is connected to the section 1 a together with the injector device 53, and the turbulence generator 5, the introduction pipe 14 including the flow control valve 16, the air compressor 4, and the muffler 17 are connected to the connecting pipe 46. And the open pipe 15 is connected to form a pipe W, and the injector device 5
3, the air compressor 54 and the paint supply device 55 are connected.
【００４４】そして、流量調整弁１６で導入管１４を閉
塞状態とし、エアコンプレッサ４を作動させることな
く、吸引車３の真空ポンプ３ａを作動させて吸引を行う
と、管路Ｗ内に開放管１５から真空ポンプ３ａ方向への
気流を生ぜしめることになり、該気流が乱気流発生装置
５の装置本体部２８の内側を通過することにより回転体
３１を回転させ、結果として上記の様に気流が乱気流と
なり、このように区間部１ａ内に乱気流を生じさせた状
態で、塗料供給装置５５で塗料を、エアコンプレッサ５
４で圧縮空気をインジェクター装置５３に導入させる。
すると、複数のノズル１１０ａより圧縮空気および塗料
が噴射されて、狭搾部１１４から混合部１１５で急速に
拡散されるとともに乱気流で区間部１ａ内に導入され
て、真空ポンプ３ａ方向に移動し、移動中に区間部１ａ
の内面に順次吹き付けられ、塗装を施すことになる。When the suction pipe 14 is closed by the flow control valve 16 and the vacuum pump 3a of the suction wheel 3 is operated without operating the air compressor 4, suction is performed. 15 generates an airflow in the direction of the vacuum pump 3a, and the airflow passes through the inside of the device main body 28 of the turbulence generator 5 to rotate the rotating body 31. As a result, the airflow is generated as described above. In a state in which turbulence is generated and the turbulence is generated in the section 1a, the paint is supplied by the paint supply device 55 to the air compressor 5 in the section 1a.
In 4, compressed air is introduced into the injector device 53.
Then, compressed air and paint are injected from the plurality of nozzles 110a, rapidly diffused from the narrowing section 114 in the mixing section 115, introduced into the section 1a by turbulence, and moved in the direction of the vacuum pump 3a, Section 1a while moving
Will be sprayed sequentially on the inner surface of the to be painted.
【００４５】このように、第５の実施の形態によれば、
真空ポンプ３ａを作動させて管路Ｗ内に乱気流を生ぜし
め、乱気流を真空ポンプ３ａ側に吸引させるとともに、
塗料を乱気流と共に区間部１ａ内に導入することによ
り、区間部１ａ内面に塗料を吹き付けて区間部１ａの内
面を塗装することができる。しかも、乱気流発生装置５
で気流が乱気流とされるため、塗料を位置的な偏りを生
じることなく全体に吹き付させて区間部１ａの内面全体
を一様に塗装することができる。なお、第５の実施の形
態においては、流量調整弁１６およびエアコンプレッサ
４が不要であるため、これらを設けずに導入管１４を閉
塞させてもよい。As described above, according to the fifth embodiment,
By operating the vacuum pump 3a to generate turbulence in the pipe W, the turbulence is sucked toward the vacuum pump 3a,
By introducing the paint into the section 1a together with the turbulence, the paint can be sprayed on the inner surface of the section 1a to paint the inner surface of the section 1a. Moreover, the turbulence generator 5
As a result, the airflow is turbulent, so that the paint can be sprayed on the entire surface without causing positional deviation to uniformly coat the entire inner surface of the section 1a. In the fifth embodiment, since the flow control valve 16 and the air compressor 4 are unnecessary, the introduction pipe 14 may be closed without providing them.
【００４６】次に、本発明の管体のメンテナンス方法の
第６の実施の形態を主に図５〜図７を参照して説明す
る。なお、第６の実施の形態は、第５の実施の形態に加
えてエアコンプレッサ４を動作させる方法である。Next, a sixth embodiment of the pipe maintenance method of the present invention will be described mainly with reference to FIGS. Note that the sixth embodiment is a method of operating the air compressor 4 in addition to the method of the fifth embodiment.
【００４７】まず、第５の実施の形態と同様にして管路
Ｗを形成する。そして、流量調整弁１６で導入管１４を
所定の流量が流れる状態とし、吸引車３の真空ポンプ３
ａを作動させて吸引を行うとともに、エアコンプレッサ
４を作動させて補助的な押込みを行って、管路Ｗ内に乱
気流発生装置５から真空ポンプ３ａ方向へより大きな乱
気流を生ぜしめ、塗料を大きな乱気流と共に区間部１ａ
内に導入して、区間部１ａの内面に順次吹き付け塗装を
施すことになる。First, a pipe W is formed in the same manner as in the fifth embodiment. Then, the introduction pipe 14 is set to a state in which a predetermined flow rate flows by the flow control valve 16, and the vacuum pump 3
a, the suction is performed, and the air compressor 4 is operated to perform the auxiliary pushing, so that a larger turbulence is generated in the pipe W from the turbulence generator 5 toward the vacuum pump 3a. Section 1a with turbulence
And spray coating is sequentially performed on the inner surface of the section 1a.
【００４８】このように、第６の実施の形態によれば、
吸引車３の真空ポンプ３ａに加えてエアコンプレッサ４
を作動させることにより、管路Ｗ内にさらに大きな乱気
流を発生させ、この大きな乱気流と共に塗料を区間部１
ａ内に導入して区間部１ａの内面を塗装するようにした
ので、第５の実施の形態に比べて、さらに、区間部１ａ
の内面への塗装を確実かつ短時間で行うことができる。
また、メンテナンスを行う区間部１ａの長さを長くし
て、地盤の掘削間隔を長くすることもできるので、工期
を大幅に短縮することができる。なお、この場合も、エ
アコンプレッサ４は、あくまで真空ポンプ３ａによる吸
引の補助的な役割をするものであり、このため真空ポン
プ３ａによる吸引流量より小さい流量（例えば１／３程
度）で空気を吐出させることになる。As described above, according to the sixth embodiment,
In addition to the vacuum pump 3a of the suction wheel 3, an air compressor 4
, A larger turbulence is generated in the pipe W, and the paint is transferred along with the large turbulence in the section 1.
a, the inner surface of the section 1a is painted, so that the section 1a is further compared with the fifth embodiment.
Can be reliably and quickly applied to the inner surface.
In addition, since the length of the section 1a where maintenance is performed can be lengthened and the excavation interval of the ground can be lengthened, the construction period can be significantly reduced. In this case as well, the air compressor 4 merely serves to assist the suction by the vacuum pump 3a, and therefore discharges air at a flow rate smaller than the suction flow rate by the vacuum pump 3a (for example, about 1/3). Will be.
【００４９】ここで、第５，第６の実施の形態は、メン
テナンスとして区間部１ａの内面に塗装を施す方法であ
るため、実行前に、区間部１ａの内面の汚れが軽微であ
る場合、上記した第１，第２の実施の形態と同様の付着
物の除去を行うのが好ましい。この場合、第５，第６の
実施の形態のエアコンプレッサ５４および塗料導入装置
５５を非作動状態として、第１，第２の実施の形態と同
様の付着物の除去を行い、該除去の後に、エアコンプレ
ッサ５４および塗料導入装置５５を作動状態とすればよ
い。また区間部１ａの内面の汚れが軽微でない場合、上
記した第３，第４の実施の形態と同様の研磨および除去
を行うのが好ましい。この場合、第５，第６の実施の形
態のインジェクター装置５３の乱気流発生装置５側ある
いは区間部１ａ側に、第３，第４の実施の形態の研磨材
導入装置４７を設け、エアコンプレッサ５４および塗料
導入装置５５を非作動状態とすることにより、第３，第
４の実施の形態と同様の研磨および除去を行い、該研磨
および除去の後に、研磨材導入装置４７による研磨材導
入を停止させた上で、エアコンプレッサ５４および塗料
導入装置５５を作動状態とすればよい。Here, in the fifth and sixth embodiments, since the inner surface of the section 1a is painted as maintenance, if the inner surface of the section 1a is slightly stained before execution, It is preferable to remove the deposits in the same manner as in the first and second embodiments. In this case, the air compressor 54 and the paint introducing device 55 of the fifth and sixth embodiments are set in a non-operating state, and the same deposits as those of the first and second embodiments are removed. , The air compressor 54 and the paint introducing device 55 may be set to the operating state. When the stain on the inner surface of the section 1a is not insignificant, it is preferable to perform the same polishing and removal as in the third and fourth embodiments. In this case, the abrasive introduction device 47 of the third and fourth embodiments is provided on the turbulence generator 5 side or the section 1a side of the injector device 53 of the fifth and sixth embodiments, and the air compressor 54 is provided. By turning off the paint introduction device 55, the same polishing and removal as in the third and fourth embodiments are performed, and after the polishing and removal, the introduction of the abrasive by the abrasive introduction device 47 is stopped. After that, the air compressor 54 and the paint introducing device 55 may be brought into the operating state.
【００５０】なお、上記各実施の形態では、本発明を地
盤Ｇに埋設された管体１について適用したが、本発明は
この適用に限られるものではなく、例えば、建築物内に
固定して配管された水道管、ガス管、ダクト等の各種管
体にも適用できることは言うまでもない。また、上記各
実施の形態では、切断した管体１の一端をバルブ４４お
よび端部止水板４５で止め、区間部１ａの端部には上方
に屈曲する引出管８，９を取り付けるようにしたが、図
８に示すように、区間部１ａの両端部に分岐管５７ａを
備えた引出管５７を取付けて分岐管５７ａにホース１
１，１２あるいは連結管１３あるいは連結管４６を連結
させてもよい。In each of the above embodiments, the present invention is applied to the pipe 1 buried in the ground G. However, the present invention is not limited to this application. It goes without saying that the present invention can also be applied to various pipes such as a piped water pipe, gas pipe, and duct. Further, in each of the above embodiments, one end of the cut pipe 1 is stopped by the valve 44 and the end water stop plate 45, and the upwardly bent extraction pipes 8, 9 are attached to the end of the section 1a. However, as shown in FIG. 8, the drawing pipe 57 having the branch pipe 57a is attached to both ends of the section 1a, and the hose 1 is connected to the branch pipe 57a.
1, 12 or the connecting pipe 13 or the connecting pipe 46 may be connected.
【００５１】また、剥離した付着物あるいは研磨材４８
等の物質を空気中から分離収容する分離手段を真空ポン
プ３ａと区間部１ａとの間に設けることも可能である。
さらに、図９に示すように、前記吸引車３に代えて、剥
離した付着物あるいは研磨材を分離収容するタンクを有
する搭載タンク車６０を連結させ、該搭載タンク車６０
のタンクに真空ポンプを搭載した吸引車６１，６２をそ
れぞれ連結させる配置としてもよい。この場合には、前
記ホース１１をタンク車６０のタンクに連結し、吸引車
６１，６２の真空ポンプを同時に作動させることにより
吸引力をさらに高めることができるので、メンテナンス
を行う区間部１ａの長さを長くすることができる。した
がって、地盤の掘削間隔をさらに長くすることができる
ので、工期をさらに大幅に短縮することができる。Further, the detached adhered substance or abrasive 48
It is also possible to provide a separating means for separating and containing such substances from the air between the vacuum pump 3a and the section 1a.
Further, as shown in FIG. 9, instead of the suction wheel 3, a mounted tank vehicle 60 having a tank for separating and storing the detached adhered matter or abrasive is connected, and the mounted tank vehicle 60
May be connected to suction tanks 61 and 62 each having a vacuum pump mounted thereon. In this case, the suction force can be further increased by connecting the hose 11 to the tank of the tank truck 60 and simultaneously operating the vacuum pumps of the suction trucks 61 and 62. Can be lengthened. Therefore, the excavation interval of the ground can be further lengthened, so that the construction period can be further shortened.
【００５２】[0052]
【発明の効果】本発明の請求項１記載の管体のメンテナ
ンス方法によれば、負圧源を作動させることにより管路
内に気流が生じ、該気流が乱気流発生手段で乱気流とさ
れるため、例えば管体内面に付着した付着物を、位置的
な偏りを生じることなく全体にわたって確実に負圧源側
に吸引して除去することができる。加えて、負圧源によ
り気流を生じさせるようにしたので、枝管がある場合に
も適用でき、また管体に劣化した部分がある場合にもそ
の破損を抑さえることができる。また、正圧源を負圧源
に加えて作動させることにより、管路内にさらに大きな
乱気流を生じさせることができるため、各効果をさらに
確実に得ることができる。 According to the method for maintaining a pipe according to the first aspect of the present invention, an airflow is generated in the pipe by operating the negative pressure source, and the airflow is made turbulent by the turbulence generating means. For example, it is possible to reliably remove the attached matter attached to the inner surface of the tube by sucking the whole to the negative pressure source side without causing positional deviation. In addition, since the air flow is generated by the negative pressure source, the present invention can be applied to the case where there is a branch pipe, and the damage can be suppressed even when the pipe body has a deteriorated portion. Also, replace the positive pressure source with the negative pressure source.
By operating in addition to the
Each effect can be further enhanced because turbulence can be generated.
Can be obtained reliably.
【００５３】本発明の請求項２に係る管体のメンテナン
ス方法によれば、管路内に導入された研磨材が管路内に
生じた乱気流と共に負圧源側に吸引されると、管体内面
に付着した付着物に接触して該付着物を削り取りあるい
は付着物が削り取られた管体内面に接触して該管体内面
を削って研磨面を形成する研磨を行うとともに、付着物
および研磨材等を吸引除去する。よって、管体内面に強
固に付着した付着物を除去して研磨面を形成すること
が、位置的な偏りを生じることなく全体にわたって確実
にできる。According to the pipe maintenance method according to the second aspect of the present invention, when the abrasive introduced into the pipe is sucked to the negative pressure source side together with the turbulence generated in the pipe, the pipe is maintained. Abrading to form a polished surface by making contact with the adhered substance on the surface to scrape off the adhered substance or to come into contact with the inner surface of the pipe where the extraneous substance has been removed to form a polished surface; Material is removed by suction. Therefore, it is possible to form the polished surface by removing the adhered matter firmly adhered to the inner surface of the tube, without causing a positional deviation.
【００５４】[0054]
【００５５】本発明の請求項３に係る管体のメンテナン
ス方法によれば、管路内に導入された塗料が管路内に生
じた乱気流と共に負圧源側に吸引される際に、管体内面
に接触させられ、よって、管体内面を位置的な偏りを生
じることなく全体にわたって確実に塗装することができ
る。 The maintenance of the tubular body according to claim 3 of the present invention.
According to the cooling method, paint introduced into the pipeline is generated in the pipeline.
When it is sucked to the negative pressure source side with the turbulence
To the inner surface of the tube, which creates a positional deviation.
The paint can be reliably applied throughout without any
You.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明に係る管体のメンテナンス方法を適用し
て地盤に埋設された管体のメンテナンスを行なっている
状況を示す概略側面図である。FIG. 1 is a schematic side view showing a state in which a pipe buried in the ground is being maintained by applying a pipe body maintenance method according to the present invention.
【図２】本発明に係る管体のメンテナンス方法を適用し
て地盤に埋設された管体のメンテナンスを行なっている
状況を示す概略平面図である。FIG. 2 is a schematic plan view showing a state in which maintenance of a pipe buried in the ground is performed by applying the pipe maintenance method according to the present invention.
【図３】本発明に係る管体のメンテナンス方法に採用さ
れる乱気流発生装置を示す側断面図であって、装置本体
部については下側のみを断面として示すものである。FIG. 3 is a side sectional view showing a turbulence generator used in the pipe body maintenance method according to the present invention, in which only the lower side of the apparatus main body is shown in cross section.
【図４】本発明に係る管体のメンテナンス方法に採用さ
れる研磨材導入装置を管路に取付けた状態を示す概略側
面図である。FIG. 4 is a schematic side view showing a state in which an abrasive introduction device used in the pipe body maintenance method according to the present invention is attached to a pipe.
【図５】本発明に係る管体のメンテナンス方法に採用さ
れる塗料導入装置を管路に取付けた状態を示す概略側面
図である。FIG. 5 is a schematic side view showing a state in which a paint introduction device employed in the pipe body maintenance method according to the present invention is attached to a pipe.
【図６】本発明に係る管体のメンテナンス方法に採用さ
れる塗料導入装置のインジェクター装置を示す断面図で
ある。FIG. 6 is a cross-sectional view showing an injector device of a paint introduction device employed in the pipe body maintenance method according to the present invention.
【図７】本発明に係る管体のメンテナンス方法に採用さ
れる塗料導入装置のインジェクター装置を示す図６にお
けるＸ−Ｘ線に沿う断面図である。FIG. 7 is a cross-sectional view taken along line XX in FIG. 6 showing an injector device of the paint introduction device employed in the pipe body maintenance method according to the present invention.
【図８】本発明に係る管体のメンテナンス方法における
掘削坑内の管体の連結部の他の例を示す側面図である。FIG. 8 is a side view showing another example of the connecting portion of the pipe in the excavation pit in the pipe maintenance method according to the present invention.
【図９】本発明に係る管体のメンテナンス方法における
吸引力を高める場合の吸引車の配置を示した概略平面図
である。FIG. 9 is a schematic plan view showing an arrangement of suction wheels when increasing a suction force in the pipe body maintenance method according to the present invention.
【図１０】従来の管体の取替え布設によるメンテナンス
方法を示した概略図である。FIG. 10 is a schematic view showing a conventional maintenance method by replacing and laying a tubular body.
【図１１】従来のワイヤーブラシによるメンテナンス方
法を示した概略図である。FIG. 11 is a schematic view showing a maintenance method using a conventional wire brush.
【図１２】従来の圧縮空気によるメンテナンス方法を示
した概略図である。FIG. 12 is a schematic view showing a conventional maintenance method using compressed air.
１ 管体 １ａ 区間部 ３ａ 真空ポンプ（負圧源） ４ エアコンプレッサ（正圧源） ５ 乱気流発生装置（乱気流発生手段） ４８ 研磨材 Ｗ 管路 Reference Signs List 1 pipe 1a section 3a vacuum pump (negative pressure source) 4 air compressor (positive pressure source) 5 turbulence generator (turbulence generating means) 48 abrasive W pipe
フロントページの続き (56)参考文献 特開 昭56−13074（ＪＰ，Ａ) 特開 平４−11980（ＪＰ，Ａ) 実開 昭61−64367（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B08B 9/027 B08B 9/06 Continuation of the front page (56) References JP-A-56-13074 (JP, A) JP-A-4-111980 (JP, A) Jpn. JP-A-64-164367 (JP, U) (58) Fields investigated (Int) .Cl. 7 , DB name) B08B 9/027 B08B 9/06
Claims (3)
形成するとともに、該管路の他端側に、通過する気流を
乱気流とする乱気流発生手段を設け、さらに前記管路に
おける前記乱気流発生手段の前記負圧源に対し反対側に
正圧源を連結させ、該正圧源を前記負圧源に加えて作動
させて前記管路内に乱気流を生ぜしめる管体のメンテナ
ンス方法であって、 前記乱気流発生手段として、外周部に複数の絞り羽根が
放射状に設けられるとともに、内周部に複数の羽根部材
が放射状に設けられ、かつ、一端側のフランジ部に複数
の貫通孔が同一円上となるように設けられた円筒状の回
転体を用い、 前記負圧源を作動させるのに伴い前記管体の他端側の開
口から導入される空気を、前記回転体の内周部の羽根部
材に当てて前記回転体を回転させるとともに、該回転体
を通過させて前記管体の一端側へ導き、さらに前記正圧
源としての圧縮空気を前記回転体の側方の絞り羽根に当
たるよう導入して前記回転体にさらに回転力を与えると
ともに、前記圧縮空気を前記貫通孔から前記管体の一端
側へ導くことにより、前記管路内に乱気流を生ぜしめる
ことを特徴とする管体のメンテナンス方法。 1. A with one end of the tubular body and connected to a negative pressure source to form a conduit, the other end of the conduit, provided turbulence generating means to turbulence of air flow through, yet the tube On the road
Opposite to the negative pressure source of the turbulence generating means in
Connects a positive pressure source and operates by adding the positive pressure source to the negative pressure source
Pipe maintainer causing turbulence in the pipe
A plurality of diaphragm blades on an outer peripheral portion as the turbulence generating means.
A plurality of blade members are provided radially and have an inner peripheral portion.
Are provided radially, and a plurality of
Cylindrical holes provided so that the through holes of
When the negative pressure source is operated using a rolling element, the other end of the tube is opened.
The air introduced from the mouth is supplied to the inner peripheral portion of the rotor by a blade portion.
Rotating the rotating body against the material;
Through the tube to one end of the tubular body,
A source of compressed air is applied to the diaphragm blades on the side of the rotor.
When it is introduced so as to give a further rotational force to the rotating body,
In both cases, the compressed air flows from the through hole to one end of the tubular body.
Creates turbulence in the pipeline by guiding it to the side
A maintenance method for a tubular body, characterized in that:
法において、前記管路内に乱気流を生ぜしめた状態で、
該管路内に研磨材を導入するようにしたことを特徴とす
る管体のメンテナンス方法。2. The method for maintaining a pipe body according to claim 1, wherein a turbulence is generated in the pipe.
A method of maintaining a pipe body, wherein an abrasive is introduced into the pipe.
法において、前記管路内に乱気流を生ぜしめた状態で、
該管路内に塗料を導入するようにしたことを特徴とする
管体のメンテナンス方法。3. The maintenance method of a pipe body according to claim 1, wherein a turbulence is generated in the pipe.
A pipe body maintenance method, wherein a paint is introduced into the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00266596A JP3340297B2 (en) | 1996-01-10 | 1996-01-10 | How to maintain the pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00266596A JP3340297B2 (en) | 1996-01-10 | 1996-01-10 | How to maintain the pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09187745A JPH09187745A (en) | 1997-07-22 |
| JP3340297B2 true JP3340297B2 (en) | 2002-11-05 |
Family
ID=11535621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00266596A Expired - Lifetime JP3340297B2 (en) | 1996-01-10 | 1996-01-10 | How to maintain the pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3340297B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102270610B1 (en) * | 2021-02-19 | 2021-06-29 | 구자현 | A nitrogen water pipe cleaning method that optimizes the supply of high-pressure nitrogen and a water pipe cleaning device used for this |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818558A (en) * | 1987-08-04 | 1989-04-04 | Worthington Foods, Inc. | Fiber/tofu food product and method for making the same |
| DE102010039385A1 (en) * | 2010-08-17 | 2012-02-23 | MÖSSLEIN Wassertechnik GmbH | Method and device for partial cleaning, with simultaneous disinfection, of buried pipelines of the public drinking water network |
| US20180257119A1 (en) * | 2016-03-02 | 2018-09-13 | Envirologics Engineering Inc. | Cleaning inside and adjacent service connections in preparation for pipe lining method |
| GB2558904B (en) * | 2017-01-18 | 2022-05-11 | The Haigh Eng Company Ltd | Screen plate apparatus and auger apparatus |
| JP6867728B1 (en) * | 2020-11-06 | 2021-05-12 | 株式会社 ユーキ建工 | Suction car auxiliary system and suction method by suction car |
-
1996
- 1996-01-10 JP JP00266596A patent/JP3340297B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102270610B1 (en) * | 2021-02-19 | 2021-06-29 | 구자현 | A nitrogen water pipe cleaning method that optimizes the supply of high-pressure nitrogen and a water pipe cleaning device used for this |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09187745A (en) | 1997-07-22 |
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