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1. 发明专利

JP2001004562A PIPING CORROSION INSPECTING DEVICE 失效
公开(公告)号：JP2001004562A
公开(公告)日：2001-01-12
申请号：JP17555999
申请日：1999-06-22
申请人： CHUGOKU X RAY CO LTD , TOKYO GAS CO LTD
发明人： FUJIWARA SHIGERU , SUYAMA KIICHI
IPC分类号： G01N23/18 , F17D5/00 , G01N23/04
摘要： PROBLEM TO BE SOLVED: To suppress the effects of variations in X rays, to make X-ray generating time efficient, and to rationalize piping corrosion inspection by improving the degree of discrimination between corrosion which occurs with degradation in pipes forming piping and defects, etc., present in the outer sheaths with which the pipes are coated. SOLUTION: In a traveling mechanism, a portable X-ray generating device 2 and a one-dimensional array sensor 3 opposed to each other with a pipe 1 at the center are simultaneously reciprocated along the axis of the pipe 1, and the portable X-ray generating device 2 is reciprocated in directions which intersect the direction of the axis of the pipe 1 at right angles by a predetermined amount in which it is possible to sample data on the intensity of transmitted X rays transmitted though the pipe 1 at all times within the sensor arrangement of the one-dimensional array sensor 3. Then the data-sampling of the one-dimensional array sensor 3 is each started synchronously when the frequency of a reference pulse of X rays transmitted from a portable X-ray generation control device 20 takes a predetermined frequency value to be determined by the pipe voltage in use of the portable X-ray generating device 2.

2. 发明专利

JPH10318478A IN-PIPELINE TRAVELING DEVICE 失效
公开(公告)号：JPH10318478A
公开(公告)日：1998-12-04
申请号：JP12446897
申请日：1997-05-14
申请人： TOKYO GAS CO LTD , CHUGOKU X RAY CO LTD
发明人： SUYAMA KIICHI , MIZUKAMI SEIJI , KAWABE SHUNEI , IMON YOSHIO
IPC分类号： F16L55/00 , F16L55/16 , F16L55/28
摘要： PROBLEM TO BE SOLVED: To smoothly travel in a bent pipe and graspe duct form by making the center axis of a travel device body always accord with that of a pipe in traveling, and simultaneously measuring the travel distance and direction of a self-propelled car itself. SOLUTION: Traveling wheels 5 to be rotated by a driving mechanism are journalled on respective other ends of two pairs of wheels supporting arms 3a, 3a' and 3b, 3b', and energized in the pipe wall surface direction by each spring of sliders 2a and 2b, and forcibly pressed to a pipe wall surface under pressure. The travel device is equipped with an angle measuring arm 10 as an angle measuring mechanism, and an angle measuring roller 11 journalled on the tip part also is always forcibly pressed to an inner wall of the pipe under pressure, and then tilting angle data are outputted from four rotary potentiometers P1, P2, P3 and P4 attached with the angle measuring arm 10. The driving mechanism is controlled so that each measured angle of a pair of opposing wheel supporting arms coincides, thereby driving the traveling wheel 4, and then the device body is always pointed in the axial direction of piping, ensuring its automatic traveling.

3. 发明专利

JPH09329585A SENSOR AND APPARATUS FOR FLAW DETECTION OF METAL PIPE 失效
公开(公告)号：JPH09329585A
公开(公告)日：1997-12-22
申请号：JP14745796
申请日：1996-06-10
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , CHUGOKU X RAY CO LTD
发明人： SUYAMA KIICHI , MORITA KENJI , KINOSHITA AKIRA , HAYASHI KENICHIRO , KAWABE SHUNEI , IMON YOSHIO
IPC分类号： G01N27/90
摘要： PROBLEM TO BE SOLVED: To obtain a sensor and an apparatus which are not affected by an external noise, which are lightweight and which eliminate an error by amplifying received signals by a plurality of receiving coils to be at a prescribed level so as to be converted into digital signals at respective channels corresponding to the respectively receiving coils and sending out serially the received signals as the digital signals by a parallel/serial converter in a time-sharing manner in the order of the channels. SOLUTION: A receiving coil group 9 which is arranged and installed at a remote-field eddy current sensor 7 is constituted of a plurality of receiving coils RC1 to RCn , the coils receive remote-field eddy currents which are prorated inside the thick wall of a metal pipe 6 and which are generated by an exciting coil 8, and they output weal AC signals at several to several tens of μV. Received signals which are output are connected to corresponding input terminals which are arranged and installed inside a parallel/serial conversion unit 10 by using (n) pairs of transmission cables. The signals are converted into serial digital signals by a parallel/serial conversion module PS inside the conversion unit 10, and they are connected to a remote-field metal pipe-flaw detection apparatus via a cable 11 for signal transmission.

4. 发明专利

CA2443217A1 METHOD AND INSTRUMENT FOR MEASURING INSIDE DIAMETER OF CONDUIT 未知
公开(公告)号：CA2443217A1
公开(公告)日：2002-10-17
申请号：CA2443217
申请日：2002-03-28
申请人： TOKYO GAS CO LTD
发明人： YONEMURA YASUSHI , SAKASAI RYUJI , SUYAMA KIICHI
IPC分类号： B08B9/04 , G01B7/13 , G01B7/287 , G01B7/293 , G01B21/14
摘要： An instrument for measuring the inside diameter of a conduit provided with a t least one seal cap (60B-60D) sliding on the inner surface of a conduit airtightly and being fixed to an insertion pig for confirming insertability of the conduit while traveling through the conduit or to a cleaning pig (60) fo r cleaning the inside of the conduit. The instrument for measuring the inside diameter of a conduit comprises means (65, 62D) for measuring the traveling distance of the insertion pig or the cleaning pig (60) in the conduit, means (62E) for detecting the rotational movement angle of the pig body during measurement of the traveling distance, means (61) for detecting radial displacement of the circumferential edge part of the seal cup individually a t a large number of points during measurement of the traveling distance, means (62C) for operating the output from each means, and means (62B) for recordin g the output from the operating means, wherein means (62c) outputs detection results by the means (61) for detecting displacement outputs depending on th e output from the means for measuring the traveling distance and the rotationa l movement angle of the pig body at that traveling position.

5. 发明专利

DE69330089T2 未知
公开(公告)号：DE69330089T2
公开(公告)日：2001-09-20
申请号：DE69330089
申请日：1993-12-24
申请人： TOKYO GAS CO LTD
发明人： SUYAMA KIICHI
IPC分类号： F16L55/26 , F16L55/32 , F16L55/48 , G01M3/00

6. 发明专利

DE69330089D1 未知
公开(公告)号：DE69330089D1
公开(公告)日：2001-05-10
申请号：DE69330089
申请日：1993-12-24
申请人： TOKYO GAS CO LTD
发明人： SUYAMA KIICHI
IPC分类号： F16L55/26 , F16L55/32 , F16L55/48 , G01M3/00

7. 发明专利

CA2112271A1 INTRAPIPE WORK ROBOT APPARATUS AND METHOD OF MEASURING POSITION OF INTRAPIPE WORK ROBOT 未知
公开(公告)号：CA2112271A1
公开(公告)日：1994-06-29
申请号：CA2112271
申请日：1993-12-23
申请人： TOKYO GAS CO LTD
发明人： SUYAMA KIICHI
IPC分类号： F16L55/26 , F16L55/32 , F16L55/48 , G01M3/00 , G08C17/00 , G01S13/88
摘要： An intrapipe work robot apparatus includes an intrapipe work robot and an operation unit. The intrapipe work robot is sent into a pipe so as to perform a work while performing automotive traveling in the pipe. The operation unit designates travel and other actions of the robot externally of the pipe. The operation output signal is transmitted from at least the operation unit to the intrapipe work robot through a radio communicating unit.

8. 发明专利

CA2443217C METHOD AND APPARATUS FOR MEASURING THE INNER DIAMETER OF PIPELINE 未知
公开(公告)号：CA2443217C
公开(公告)日：2009-12-22
申请号：CA2443217
申请日：2002-03-28
申请人： TOKYO GAS CO LTD
发明人： SAKASAI RYUJI , YONEMURA YASUSHI , SUYAMA KIICHI
IPC分类号： G01B7/13 , B08B9/04 , G01B7/287 , G01B7/293 , G01B21/14
摘要： An apparatus for measuring an inner diameter of a pipeline according to the present invention is incorporated into a passage pig for checking passableness through the pipeline or a cleaning pig (60) for cleaning within the pipeline while running through the pipeline, the passage pig and the cleaning pig including at least one seal cup (60B to 60D) sealably sliding along an interior surface of the pipeline. The apparatus includes travel distance measuring means (65, 62D) for measuring a travel distance of the passage pig or the cleaning pig (60) within the pipeline; swing angle detector means (62E) for detecting a swing angle of a pig body during the travel distance measurement; displacement detector means (61) for individually detecting a radial displacement of the peripheral portion of the seal cup at a number of points along an entire circumference during the travel distance measurement; computing means (62C) for computing an output from each of said means; and recording means (62B) for recording an output from the computing means. The computing means (62C) delivers a detection result provided by the displacement detector means (61) corresponding to an output from the travel distance measuring means and a swing angle of the pig body at a travel position thereof.

9. 发明专利

DE69408600D1 未知
公开(公告)号：DE69408600D1
公开(公告)日：1998-04-02
申请号：DE69408600
申请日：1994-06-03
申请人： TOKYO GAS CO LTD
发明人： SUYAMA KIICHI , FURUSAWA HAJIME , HOSOHARA YASUHARU , KOBORI TAKASHI
IPC分类号： G01B15/00 , G01N22/02 , G01V3/12

10. 发明专利

CA2121311A1 METHOD OF INSPECTING ABNORMALITY OCCURRING INSIDE PIPE AND APPARATUS FOR PRACTICING THE METHOD 未知
公开(公告)号：CA2121311A1
公开(公告)日：1994-12-16
申请号：CA2121311
申请日：1994-04-14
申请人： TOKYO GAS CO LTD
发明人： SUYAMA KIICHI , FURUSAWA HAJIME , HOSOHARA YASUHARU , KOBORI TAKASHI
IPC分类号： G01B15/00 , G01B15/04 , G01N22/02 , G06T7/60 , G01S13/04 , G01S11/06
摘要： A method of inspecting an abnormality occurring inside a pipe to be inspected and an apparatus for practicing the method, includes the steps of transmitting an electric wave having a predetermined frequency from an antenna of a transmitter located at a predetermined position inside the pipe, receiving the transmitted electric wave by an antenna of a receiver located at a predetermined position inside the pipe, and discriminating the characteristic of the received electric wave. The characteristic of the received electric wave is the intensity of the electric wave, and an attenuation amount is detected in the first example. On the other hand, the characteristic of the received electric wave is a time required to reflect the transmitted electric wave until it is received by the receiver, and a time interval between transmission of the electric wave and reception of the reflected electric wave is measured in the second example.

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