JPH0244166Y2 - - Google Patents
Info
- Publication number
- JPH0244166Y2 JPH0244166Y2 JP12719385U JP12719385U JPH0244166Y2 JP H0244166 Y2 JPH0244166 Y2 JP H0244166Y2 JP 12719385 U JP12719385 U JP 12719385U JP 12719385 U JP12719385 U JP 12719385U JP H0244166 Y2 JPH0244166 Y2 JP H0244166Y2
- Authority
- JP
- Japan
- Prior art keywords
- wall thickness
- ultrasonic
- traveling
- tube body
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000523 sample Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は配管等の肉厚を連続的に測定する装置
に関し、詳しくは超音波探触子を備えた駆動走行
車を管体の外表面および内表面で走行可能とし、
管体の肉厚を連続的にかつ容易に測定しうる装置
に関する。[Detailed description of the invention] [Industrial field of application] The present invention relates to a device that continuously measures the wall thickness of pipes, etc. and can run on the inner surface,
The present invention relates to a device that can continuously and easily measure the wall thickness of a tube body.
従来、管体の肉厚を超音波探傷により連続的に
測定する装置として、管体の内壁面を走行する測
定車を具備した管体の肉厚測定装置（特開昭52−
96562号）、綱管を回転させつつ長手方向に送る、
いわゆる綱管の螺旋送りによる綱管の超音波連続
厚み測定装置（実公昭52−6296号）が知られてい
る。
Conventionally, as a device for continuously measuring the wall thickness of a tube body by ultrasonic flaw detection, there has been a tube wall thickness measuring device (Japanese Patent Laid-Open No. 1983-1996) equipped with a measuring wheel that runs on the inner wall surface of the tube body.
No. 96562), feeding the rope in the longitudinal direction while rotating it,
An apparatus for continuously measuring the ultrasonic thickness of a steel pipe (Utility Model Publication No. 52-6296) using so-called spiral feeding of the steel pipe is known.
しかしながら、前者においては管体の内壁面を
走行するものであるため管内を開放しなければ肉
厚を測定することができないという欠点がある。
一方、後者においては綱管を回転させつつ長手方
向に送らなければならず、移動可能な綱管でなけ
れば肉厚を測定することができないという欠点が
ある。 However, the former method has the disadvantage that the wall thickness cannot be measured unless the inside of the tube is opened, since it runs along the inner wall surface of the tube.
On the other hand, in the latter case, the wire must be rotated and fed in the longitudinal direction, and the wall thickness cannot be measured unless the wire is movable.
本考案はこれら従来の欠点を解消し、管内を開
放する必要がなく、しかも移動可能な管体だけで
なく設置済の配管の肉厚を連続的に測定しうる装
置を提供することを目的とするものである。 The purpose of the present invention is to eliminate these conventional drawbacks and provide a device that does not require opening the inside of the pipe and can continuously measure the wall thickness of not only movable pipe bodies but also installed pipes. It is something to do.
すなわち本考案は、マグネツト式の走行車輪が
揺動自在に取付けられ、かつ管体の肉厚を検出す
る超音波探触子を備えた駆動走行車を、前記駆動
走行車の走行を制御する操作制御器、前記超音波
探触子からの検出信号を処理する超音波探傷器お
よび前記超音波探傷器からの信号を記録する記録
計を有する外部電気回路装置とケーブルを介して
接続してなる管体の肉厚測定装置を提供するもの
である。
That is, the present invention provides an operation for controlling the running of a driven traveling vehicle, which is equipped with a magnetic traveling wheel swingably mounted and an ultrasonic probe for detecting the wall thickness of a tube body. A tube connected via a cable to an external electric circuit device having a controller, an ultrasonic flaw detector that processes a detection signal from the ultrasonic probe, and a recorder that records the signal from the ultrasonic flaw detector. The present invention provides a body thickness measuring device.
以下、本考案を図示する実施例により説明す
る。第１図は本考案の管体の肉厚測定装置におけ
る駆動走行車１の斜視図であり、第２図は駆動走
行車１の正面図であり、第３図は駆動走行車１の
側面図である。図中、符号２は走行車輪であり、
駆動用モーターＭにて駆動せしめられ、自走しう
るようにされている。この走行車輪２はマグネツ
ト式とされており、永久磁石または電磁石により
作製されている。また、この走行車輪２は第２図
に示す如く揺動自在に走行台車３に取付られてい
る。したがつて、走行車輪２は配管４の外径に応
じて揺動し、常に配管４の外表面と良好な接触状
態を保つこととなる。また、走行車輪２の本数は
通常は図示した如く４本とされるが、これに限定
されるものではなく、これ以下でも、或いはこれ
以上であつても差支えない。さらに走行車輪２の
全てをマグネツト式とする必要はないが、配管の
下側や直立した配管の表面をも充分に走行しうる
ものとするために本実施例では全ての走行車輪を
マグネツト式のものとしている。なお、符号５は
ガイド用車輪であり、符号６はホイルスプリング
調整つまみである。
Hereinafter, the present invention will be explained with reference to illustrative embodiments. FIG. 1 is a perspective view of the driving vehicle 1 in the tube wall thickness measuring device of the present invention, FIG. 2 is a front view of the driving vehicle 1, and FIG. 3 is a side view of the driving vehicle 1. It is. In the figure, numeral 2 is a running wheel,
It is driven by a drive motor M so that it can run on its own. This running wheel 2 is of a magnetic type and is made of a permanent magnet or an electromagnet. Further, as shown in FIG. 2, the traveling wheels 2 are swingably attached to the traveling carriage 3. Therefore, the running wheels 2 swing according to the outer diameter of the pipe 4, and are always kept in good contact with the outer surface of the pipe 4. Furthermore, although the number of running wheels 2 is usually four as shown in the figure, it is not limited to this, and may be less than or greater than this. Furthermore, although it is not necessary that all of the running wheels 2 be of the magnetic type, in this embodiment all of the running wheels are of the magnetic type in order to be able to sufficiently run under the pipes and on the surface of the upright pipes. I take it as a thing. Note that the reference numeral 5 is a guide wheel, and the reference numeral 6 is a wheel spring adjustment knob.
さらに、この駆動走行車１には管体の肉厚を検
出する超音波探触子７が固定治具８により備えら
れており、超音波探触子高さ調整つまみ９により
上下動可能な如くされている。また、固定治具８
は走行台車３に上下動可能な如く取付けられてお
り、固定治具高さ調整つまみ１０、固定治具ロツ
ク用つまみ１１により適宜高さに保持される。し
たがつて、超音波探触子７は固定治具高さ調整つ
まみ１０により大体の高さを決められた後、超音
波探触子高さ調整つまみ９により微調整して必要
な高さに保持される。 Further, this driving vehicle 1 is equipped with an ultrasonic probe 7 for detecting the wall thickness of the tube body using a fixing jig 8, and can be moved up and down by an ultrasonic probe height adjustment knob 9. has been done. In addition, the fixing jig 8
is attached to the traveling carriage 3 so as to be movable up and down, and is held at an appropriate height by a fixing jig height adjustment knob 10 and a fixing jig locking knob 11. Therefore, after the approximate height of the ultrasonic probe 7 is determined using the fixing jig height adjustment knob 10, fine adjustment is made using the ultrasonic probe height adjustment knob 9 to the required height. Retained.
また、駆動走行車１の上部には電源・信号用接
続コネクター１２が設けられており、このコネク
ター１２にケーブル１３を連結し、後記する外部
電気回路装置と接続される。さらに図中、符号１
４はロータリーエンコーダーであつて、駆動走行
車１の移動を符号化し、外部電気回路装置の記録
計１７に送つている。 Further, a power/signal connector 12 is provided on the top of the driving vehicle 1, and a cable 13 is connected to this connector 12 to be connected to an external electric circuit device to be described later. Furthermore, in the figure, the code 1
4 is a rotary encoder which encodes the movement of the driving vehicle 1 and sends it to a recorder 17 of an external electric circuit device.
次に、叙上の如き駆動走行車１とケーブル１３
を介して接続される外部電気回路装置について説
明する。第４図は本考案の管体の肉厚測定装置の
ブロツク図である。外部電気回路装置は、駆動走
行車１の走行を制御する操作制御器１５、超音波
探触子７からの検出信号を処理する超音波探傷器
１６および前記超音波探傷器１６からの信号を記
録する記録計１７を有している。 Next, the driving vehicle 1 and the cable 13 as described above are
The external electric circuit device connected via the will be explained. FIG. 4 is a block diagram of the tube wall thickness measuring device of the present invention. The external electric circuit device includes an operation controller 15 that controls the running of the driving vehicle 1, an ultrasonic flaw detector 16 that processes detection signals from the ultrasonic probe 7, and records signals from the ultrasonic flaw detector 16. It has a recorder 17.
以下、本考案の管体の肉厚測定装置の一例につ
いて動作に沿つて説明する。 Hereinafter, an example of the tube wall thickness measuring device of the present invention will be explained along with its operation.
駆動走行車（幅228mm、長さ494.5mm、高さ132
mm、重さ6.6Kg）１はケーブル１３を介して接続
された操作制御器１５によりリモートコントロー
ルされる。この場合、駆動走行車１を操舵可能な
ものとしておくことにより、前進、後退の他、方
向転換することが可能である。さらに駆動走行車
１に防水装置を施しておくことにより、水中でも
検査を行なうことができ、海底配管等の肉厚を測
定することが可能となる。駆動走行車１の走行速
度は通常300ｍ／分以上であり、通常の溶接ビー
ドを乗り越えることが可能な如く、駆動用モータ
ーの出力や走行台車３の最低地上高さなどを決定
すべきである。この駆動走行車１の移動はロータ
リーエンコーダー１４により符号化され、記録計
１７に送られて記録される。したがつて、駆動走
行車１の移動量は走行速度と記録計１７のチヤー
ト速度の関係から求めることができる。 Driven vehicle (width 228mm, length 494.5mm, height 132mm)
mm, weight 6.6 kg) 1 is remotely controlled by an operating controller 15 connected via a cable 13. In this case, by making the driving vehicle 1 steerable, it is possible to move forward, backward, and change direction. Furthermore, by equipping the driving vehicle 1 with a waterproof device, inspection can be carried out underwater, making it possible to measure the wall thickness of submarine piping, etc. The traveling speed of the driving vehicle 1 is normally 300 m/min or more, and the output of the driving motor and the minimum ground height of the traveling vehicle 3 should be determined so that it can overcome a normal weld bead. This movement of the driving vehicle 1 is encoded by the rotary encoder 14 and sent to the recorder 17 for recording. Therefore, the amount of movement of the driving traveling vehicle 1 can be determined from the relationship between the traveling speed and the chart speed of the recorder 17.
次に管体４の肉厚の測定は、超音波探触子７よ
り超音波を被測定配管の外表面から入射させ、肉
厚部分を通過させ、内表面で反射させて、入射し
た超音波が反射して返つてくるまでの時間を超音
波探傷器１６で測定することにより行なわれる。
一般に、超音波の伝達速度は配管が綱管の場合、
5900ｍ／秒（縦波）である。本考案の場合、連続
的に肉厚を測定するため、超音波探触子７と管体
４との間に数mmの間隔（ギヤツプ）を設け、その
ギヤツプに水を連続的に供給するギヤツプ探傷法
を採用することができる。ここで水は超音波を効
率よく入射させるための接触媒質である。このギ
ヤツプ探傷法に用いる装置の断面図を第５図に、
その底面図を第６図に示す。図中、符号１８は外
枠であり、この内側に管体４との間に数mmのギヤ
ツプを設けて超音波探触子７が設けられており、
このギヤツプに水の供給口１９より水が連続的に
供給される。なお、符号２０は水の出口である。
このようなギヤツプ探傷法を採用することによ
り、超音波探触子７が配管に接触して摩耗するこ
とを防止することができる。第４図における符号
２１は接触媒質供給用ポンプを示しており、符号
２２はインバーター、符号２３はホース、符号２
４はタンクを示している。 Next, to measure the wall thickness of the tube body 4, ultrasonic waves are incident from the outer surface of the pipe to be measured from the ultrasonic probe 7, passed through the thick wall portion, and reflected from the inner surface. This is done by measuring the time it takes for the beam to be reflected and returned using the ultrasonic flaw detector 16.
Generally, the transmission speed of ultrasonic waves is
5900m/sec (longitudinal wave). In the case of the present invention, in order to continuously measure wall thickness, a gap of several mm is provided between the ultrasonic probe 7 and the tube body 4, and water is continuously supplied to the gap. Flaw detection method can be adopted. Here, water is a couplant for efficient incidence of ultrasonic waves. Figure 5 shows a cross-sectional view of the equipment used for this gap flaw detection method.
The bottom view is shown in FIG. In the figure, reference numeral 18 is an outer frame, and the ultrasonic probe 7 is installed inside this frame with a gap of several mm between it and the tube body 4.
Water is continuously supplied to this gap from a water supply port 19. In addition, the code|symbol 20 is an outlet of water.
By employing such a gap detection method, it is possible to prevent the ultrasonic probe 7 from coming into contact with the piping and being worn out. In FIG. 4, numeral 21 indicates a couplant supply pump, numeral 22 an inverter, numeral 23 a hose, numeral 2
4 indicates a tank.
超音波探傷器１６からの出力は接続ケーブル２
５により記録計１７に入力される。したがつて、
記録計１７には駆動走行車１の移動および超音波
探傷器１６からの信号が記録され、これにより管
体の肉厚を測定することができる。なお、図中、
符号２６はバツテリー、符号２７は電限用ケーブ
ルを示している。 The output from the ultrasonic flaw detector 16 is connected to the connection cable 2.
5 is input to the recorder 17. Therefore,
The recorder 17 records the movement of the driving vehicle 1 and the signal from the ultrasonic flaw detector 16, thereby making it possible to measure the wall thickness of the tube. In addition, in the figure,
Reference numeral 26 indicates a battery, and reference numeral 27 indicates a power limit cable.
このように、駆動走行車１は外部電源により駆
動せしめられており、より軽量化されている。 In this way, the driving traveling vehicle 1 is driven by an external power source and is further reduced in weight.
本考案において駆動走行車１はマグネツト式の
走行車輪２が取付けられているため、配管等の下
側や直立した管の表面を落下することなく走行可
能であるが、安全対策として第７図に示す如く落
下防止用のワイヤー２８を取付け・取外し自在に
取付けておくこともできる。この場合落下防止用
のワイヤーは駆動走行車１の走行に支障がないよ
うに管体４に緩く取付けておくことが好ましい。 In the present invention, the drive vehicle 1 is equipped with magnetic wheels 2, so it can run on the underside of piping or on the surface of upright pipes without falling. However, as a safety measure, the As shown, a fall prevention wire 28 can be attached and detached as desired. In this case, it is preferable that the fall prevention wire be loosely attached to the tube body 4 so as not to interfere with the running of the drive vehicle 1.
叙上の如き本考案の管体の肉厚測定装置によれ
ば、マグネツト式の走行車輪が揺動自在に取付け
られたセパレート型の軽量な駆動走行車を、外部
電気回路装置とケーブルを介して接続しているた
め、水平な配管の上側表面だけでなく、水平な管
の下側や側部表面、さらには直立した配管の表面
を走行し、配管の肉厚を連続的に測定することが
できる。しかも、走行車輪が揺動自在に取付けら
れているため、駆動走行車の大きさ等にもよる
が、外型３インチ以上の配管の外表面や内型８イ
ンチ以上の配管の内表面を走行することができ
る。しかも、20ｍ程度連続走行でき、ケーブルや
ホース（これらは通常１〜1.5ｍ提度の長さであ
る。）を長くすれば、さらに延長することができ
る。また、通常の溶接ビードを乗り越えることが
できるので連続走行に支障はない。
According to the tube wall thickness measuring device of the present invention as described above, a separate lightweight drive vehicle to which a magnetic running wheel is swingably attached is connected to an external electrical circuit device and a cable. Because it is connected, it can travel not only on the upper surface of a horizontal pipe, but also on the bottom and side surfaces of a horizontal pipe, as well as on the surface of an upright pipe, and continuously measure the wall thickness of the pipe. can. In addition, since the running wheels are attached to swing freely, it can run on the outer surface of piping with an outer diameter of 3 inches or more, or on the inner surface of piping with an inner diameter of 8 inches or more, depending on the size of the driving vehicle. can do. Moreover, it can run continuously for about 20 meters, and can be extended further by lengthening the cables and hoses (usually 1 to 1.5 meters long). Also, since it can overcome normal weld beads, there is no problem with continuous running.
しかも自走式の駆動走行車を用いているため、
付帯工事として足場を組む必要もないなど、省力
化を図ることができる。 Moreover, since it uses a self-propelled drive vehicle,
Labor savings can be achieved as there is no need to erect scaffolding as ancillary work.
したがつて、本考案は配管等の肉厚測定、ひい
ては腐食の状態を測定することができ、輸送管に
よる各種輸送の安全などに資するところが大きい
ものである。 Therefore, the present invention makes it possible to measure the wall thickness of pipes, etc., as well as the state of corrosion, and greatly contributes to the safety of various types of transportation using transport pipes.
第１図は本考案の管体の肉厚測定装置における
駆動走行車の斜視図、第２図は同正面図、第３図
は同側面図であり、第４図は本考案の管体の肉厚
測定装置のブロツク図、第５図はギヤツプ探傷法
に用いる装置の断面図、第６図は同底面図であ
り、第７図は本考案の管体の肉厚測定装置におけ
る駆動走行車の他の態様を示す側面図である。
１……駆動走行車、２……走行車輪、４……配
管、７……超音波探触子、１２……コネクター、
１４……ロータリーエンコーダー、１５……操作
制御器、１６……超音波探傷器、１７……記録
計。
Fig. 1 is a perspective view of the driving vehicle in the tube wall thickness measuring device of the present invention, Fig. 2 is a front view of the same, Fig. 3 is a side view of the same, and Fig. 4 is a perspective view of the drive vehicle in the tube wall thickness measuring device of the present invention. A block diagram of the wall thickness measuring device, FIG. 5 is a sectional view of the device used in the gap flaw detection method, FIG. 6 is a bottom view of the same, and FIG. 7 is a driving vehicle in the wall thickness measuring device of the present invention. It is a side view which shows another aspect of. 1... Drive traveling vehicle, 2... Running wheels, 4... Piping, 7... Ultrasonic probe, 12... Connector,
14... Rotary encoder, 15... Operation controller, 16... Ultrasonic flaw detector, 17... Recorder.
Claims (1)
れ、かつ管体の肉厚を検出する超音波探触子を備
えた駆動走行車を、前記駆動走行車の走行を制御
する操作制御器、前記超音波探触子からの検出信
号を処理する超音波探傷器および前記超音波探傷
器からの信号を記録する記録計を有する外部電気
回路装置とケーブルを介して接続してなる管体の
肉厚測定装置。 A driving traveling vehicle having a magnetic traveling wheel swingably attached thereto and having an ultrasonic probe for detecting the wall thickness of a tube body is connected to an operation controller for controlling the traveling of said driving traveling vehicle, and said ultrasonic traveling vehicle. Measurement of the wall thickness of a tube body connected via a cable to an external electric circuit device having an ultrasonic flaw detector that processes detection signals from a sonic probe and a recorder that records signals from the ultrasonic flaw detector. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12719385U JPH0244166Y2 (en) | 1985-08-22 | 1985-08-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12719385U JPH0244166Y2 (en) | 1985-08-22 | 1985-08-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6235211U JPS6235211U (en) | 1987-03-02 |
| JPH0244166Y2 true JPH0244166Y2 (en) | 1990-11-22 |
Family
ID=31021709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12719385U Expired JPH0244166Y2 (en) | 1985-08-22 | 1985-08-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244166Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5392527A (en) * | 1993-07-12 | 1995-02-28 | Wheelabrator Engineered Systems, Inc. | Annulus measuring device |
| JP4670599B2 (en) * | 2005-11-09 | 2011-04-13 | Ｊｆｅスチール株式会社 | Self-propelled cart for inspection equipment |
| JP6691956B1 (en) * | 2018-12-25 | 2020-05-13 | 株式会社クボタ | Pipe thickness measuring device |
| JP7272636B2 (en) * | 2019-04-04 | 2023-05-12 | 学校法人法政大学 | Precision measuring device and mobile precision measuring robot |
-
1985
- 1985-08-22 JP JP12719385U patent/JPH0244166Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6235211U (en) | 1987-03-02 |
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