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21. 发明专利

JPH1024266A METHOD FOR REGENERATING AND REPAIRING EXISTING PIPELINE 失效
公开(公告)号：JPH1024266A
公开(公告)日：1998-01-27
申请号：JP18090296
申请日：1996-07-10
申请人： TOKYO GAS CO LTD
发明人： SUYAMA KENJI , NAGANUMA TETSUO
IPC分类号： B05D7/22 , B05C7/08 , G01B17/00
摘要： PROBLEM TO BE SOLVED: To provide a method for regenerating and repairing an existing piping capable of surely executing resin lining up to a target position over the entire length of a pipe. SOLUTION: A lining pig 3, a lining resin A, a resin transporting pig 4, a liquid absorbent 5 and a liquid shielding pig 6 are first introduced into the pipe from the above-the-ground aperture 14 of the supply pipe 7 in a first stage. Next, the entire amt. of the plug-like lining resin A is forcibly fed into the branching position 2 on a main branch pipe 1 side by injecting the prescribed amt. of the fluid flow into the pipe. Sound waves of about the audible frequencies are thereafter emitted from the above-the-ground aperture 14 of the supply pipe to the fluid flow B in the pipe and the reflected waves from the water shielding pig 6 are received, by which the distance from the above-the-ground aperture 14 of the supply pipe toward the water shielding pig 6 is measured. The result of the measurement is compared with the desired distance at which the water shielding pig 6 arrives at the pipe. When judgment is made that the actual position of the water shielding pig 6 does not arrive at the desired position, the liquid flow B is increased and is injected again into the pipe in such a manner that the water shielding pig 6 is capable of arriving at the position where the water shielding pig 6 is required to arrive, by which the plug-like lining resin A is forcibly fed to the branching position 2 on the main branch pipe 1 side.

22. 发明专利

JPH08105844A METHOD FOR SENSING OXYGEN CONCENTRATION BY USING RADIO-WAVE 失效
公开(公告)号：JPH08105844A
公开(公告)日：1996-04-23
申请号：JP24262194
申请日：1994-10-06
申请人： TOKYO GAS CO LTD
发明人： TAGUCHI FUJITAKA , SUYAMA KENJI
IPC分类号： G01N22/00 , G01S13/00
摘要： PURPOSE: To sense oxygen concentration over a wide region with immediate response. CONSTITUTION: Sensing radio waves of approximately 5mm wavelength having the nature of being absorbed by oxygen and reference radio waves separate from the wavelength of the sensing waves and having wavelength not observed by gas except oxygen are emitted from a transmission antenna 3, they are propagated in a space 1 to be sensed and received by a reception antenna 3, and oxygen concentration in the space to be sensed is sensed by a difference in received wave strength levels of the sensing radio waves and the reference radio waves.

23. 发明专利

JPH07229881A MOVING TYPE FLAW DETECTION ROBOT 失效
公开(公告)号：JPH07229881A
公开(公告)日：1995-08-29
申请号：JP2156294
申请日：1994-02-18
申请人： TOKYO GAS CO LTD
发明人： TSUGE MUNENORI , SUYAMA KENJI , KOSEKI MASATO
IPC分类号： G01N29/26 , B25J5/00 , B25J13/08 , B62D57/024
摘要： PURPOSE:To accurately position a robot on a flaw detection surface by providing a television camera having the flaw detection surface in its visual field and displaying the cross cursor corresponding to the positioning reference position of the robot within the image thereof and moving the robot while monitoring the image. CONSTITUTION:A television camera 23 having a flaw detection surface in its visual field is provided in the annular frame part of an inside frame 2 along with a flaw detector 22 by setting the extension of a support shaft 11 as a reference position and the cross cursor corresponding to the reference position is displayed on the image thereof. When the extensible and contractible drive leg 4 of the inside frame 2 is contracted to separate a vacuum pad from the flaw detection surface and a ball screw 7 is rotated by a running motor 8, the support shaft 11 and the inside frame 2 are moved through a nut 10. In contrast with the movement of the inside frame 2 in the fixed state of an outside frame 1, the movement of the outside frame 1 in the fixed state of the inside frame 2 can be also performed and, by the repetition of this, a robot can moved along the flaw detection surface. Therefore, the positioning of the robot in flaw detection operation can be performed by the image of the flaw detection surface and the cross cursor.

24. 发明专利

JPH07218486A PROBE OF ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPH07218486A
公开(公告)日：1995-08-18
申请号：JP1379394
申请日：1994-02-07
申请人： TOKYO GAS CO LTD
发明人： TSUGE MUNENORI , SUYAMA KENJI , KOSEKI MASATO
IPC分类号： G01N29/04 , G01N29/24
摘要： PURPOSE:To reduce the number of times of replacement due to the abrasion of a shoe fixed when the probe of an ultrasonic flaw detector is used according to a gap method. CONSTITUTION:A resin wedge 1 having a vibrator 3 attached thereto is fixed to a metal case 2 so that a part of the underside thereof is exposed and a metal shoe 7 is fixed to the periphery of the underside of the wedge 1 and an insulator 8 is interposed between the upper part of the shoe 7 and the lower part of the case 2. Therefore, the abrasion quantity of the shoe 7 sliding on the flaw detection surface of an article to be inspected can be extremely reduced and the frequent replacement thereof is made unnecessary and flaw detection work is not affected by the noise due to the stray current flowing along the flaw detection surface 13.

25. 发明专利

JPH07218483A FLAW DIMENSION MEASURING METHOD IN ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPH07218483A
公开(公告)日：1995-08-18
申请号：JP1044694
申请日：1994-02-01
申请人： TOKYO GAS CO LTD
发明人： TSUGE MUNENORI , SUYAMA KENJI , KOSEKI MASATO
IPC分类号： G01N29/44 , G01N29/22
摘要： PURPOSE:To accurately measure the actual dimension of a flaw by converting the dimension of an image on the basis of the ratio of a preset reference posi tion and the position of a measured flaw. CONSTITUTION:Since the propagation distance of ultrasonic waves is the product of an elapse time and sonic velocity, when the flaw present in propagation distances X1, X2 is detected by a reflection method, 2X1= t1.c and 2X2=t2.c (wherein t1 and t2 are a time lag of an incident wave with an echo and c is sonic velocity) are formed. Therefore, the position of a flaw is detected from the timewise positions t1, t2 of a flaw echo. The estimation formula of the actual dimension II of the flaw present at a preset reference position t0 is set to H=a.h0+b (wherein h0 is the dimension of an image in the flaw detection at the reference position t0 and a and b are a constant). The estimation formula of the actual dimension H of the flaw at the position t1 (the timewise position of the flaw echo) of a measured flaw is converted as H = a(t0/t1)h1 +b (wherein h1 is the image dimension of the flaw at the position t1) to estimate an actual dimension.

26. 发明专利

JPH06265633A UNDERGROUND RADAR 失效
公开(公告)号：JPH06265633A
公开(公告)日：1994-09-22
申请号：JP5406593
申请日：1993-03-15
申请人： TOKYO GAS CO LTD , KODEN ELECTRONICS CO LTD
发明人： SUYAMA KENJI , NAGAREGO SHIGERU , ISHIKAWA YOSHINAO , ISONO MASARU
IPC分类号： G01S7/282 , G01S13/88
摘要： PURPOSE:To prevent the effect of fixed noises based on the end of a running region by selecting the width of a trigger pulse so that the width is longer than the observing time of a reflected wave. CONSTITUTION:A delay circuit 25 is inserted into one of the two paths, which are inputted into an AND circuit 14 in a differentiating circuit 12. The delay circuit 25 is a CR integration type comprising a resistor 26 and a capacitor 27. The amount of delay is selected so that the amount is longer than the observing time of a reflected wave, e.g. 200 nS. The output of the differentiating circuit 12 becomes a trigger pulse Pt having the pulse width Tw of 200 nS. Namely, the pulse width Tw is selected so that the width is wider than the observing time. When the pulse Pt is applied across the base and the emitter of a transistor 18, a narrow pulse Pe is generated by avalanche phenomenon at the rising of the pulse Pt. Then, a running region is generated in continuation. The running region falls clown by the rising of the pulse Pt. Therefore, even if the power spectrum based on the falling of the running region is generated, the fixed noise is deviated from the observing time region and does not appear on a display device.

27. 发明专利

JPH0618650A ANTENNA FOR UNDERGROUND PROSPECTING RADAR 失效
公开(公告)号：JPH0618650A
公开(公告)日：1994-01-28
申请号：JP17678892
申请日：1992-07-03
申请人： TOKYO GAS CO LTD
发明人： SUYAMA KENJI
IPC分类号： G01S7/03 , G01S13/88 , G01V3/12 , H01Q1/36 , H01Q9/28
摘要： PURPOSE:To reduce mismatching reflection even if a narrow pulse is used by laying out a copper plate on the upper surface of a resistance wire connecting the vertexes of the steel plate of an isosceles triangle in a bow-tie type antenna. CONSTITUTION:In a bow-tie type antenna, third vertexes c and c' of steel plates 1 and 1a consisting of an isosceles triangle oppose each other, first vortexes a and a' are connected by a first resistance wire 2, and second vortexes b and b' are connected by a second resistance wire 3. A first steel plate 4 is laid out on the first resistance wire 2 and a second steel plate 5 is laid out on the upper surface of the second resistance wire 3. The return loss of the antenna is -20dB or less at 10-1250MHz band. Therefore, when 1ns pulse is applied to the antenna, the amount of energy which is reflected from the antenna due to mismatching is approximately only 10 ''7. so that noise due to mismatching reflection is of little concern. Also, use of 1ns pulse also allows targets which are in proximity in two stages to be identified.

28. 发明专利

JPH0257818A COMBUSTION STATE SUPERVISING DEVICE 失效
公开(公告)号：JPH0257818A
公开(公告)日：1990-02-27
申请号：JP20751088
申请日：1988-08-22
申请人： NEMOTO TOKUSHU KAGAKU KK , TOKYO GAS CO LTD
发明人： MATSUURA MASAYUKI , UEKI TAKASHI , SUYAMA KENJI , MATSUZAWA TAKASHI , SUGAI TAKASHI , NAGAE HIROO
IPC分类号： F23N5/00 , F23N5/26
摘要： PURPOSE:To enable a concentration of gas to be measured at a place where a substantial variation of temperature is found by a method wherein a heating temperature of a heater for a sensor is varied in response to a temperature of a temperature sensor arranged at a place where a gas sensor is positioned and the gas sensor is always applied to provide a specified temperature. CONSTITUTION:A temperature sensor 30 and a gas sensor 40 which can be heated by the heater 50 are positioned at a discharging part 20 of a combustion device 10. A temperature of the heater 50 is controlled by a control device 60. The control device 60 is provided with an inputting means 61 for temperature information from the temperature sensor 30, a memory means 62 for storing a predetermined temperature, a comparing means 63 for comparing the set temperature stored in the memory means 62 with a temperature inputted by the inputting means 61, and an outputting means 64 for supplying a current for keeping the gas sensor 40 at a predetermined temperature to the heater 50. The gas sensor 40 is constructed such that an outer circumferential surface of a ceramic substrate 43 has electrodes 44 and 44 fixed thereto and at the same time the outer circumferential surfaces of them are provided with a semiconductor layer 41 and a catalyst layer 42 composed of catalyst material. With this arrangement, it is possible to perform a sensing of a proper concentration of combustion gas independent of the combustion temperature.

29. 发明专利

JP2013061209A Piping inspection apparatus for linear piping 有权
标题翻译：管线检查装置
公开(公告)号：JP2013061209A
公开(公告)日：2013-04-04
申请号：JP2011199165
申请日：2011-09-13
申请人： Tokyo Gas Co Ltd , 東京瓦斯株式会社 , Shin Nippon Hihakai Kensa Kk , 新日本非破壊検査株式会社
发明人： SUYAMA KENJI , WADA HIDEKI , SASAKI KAZUYA
IPC分类号： G01B17/02
摘要： PROBLEM TO BE SOLVED: To provide a piping inspection apparatus for linear piping in which a thickness of the linear piping can be measured quickly.SOLUTION: A piping inspection apparatus 1 for linear piping comprises a main body 33, a rotation suppression device 37 which suppresses rotation of the main body 33 in press-contact with an inner circumferential surface 101a within piping 101, a moving device 35 which moves the main body 33 in an axial direction within the piping 101 in press-contact with the inner circumferential surface 101a within the piping 101, and a measuring section 11 which is disposed at a position in the axial direction of the main body 33 and rotatable around a center axis of the main body 33. The measuring section 11 is capable of inspecting a state of the piping.
摘要翻译：要解决的问题：提供一种可以快速测量线性管道的厚度的线性管道的管道检查装置。解决方案：用于线性管道的管道检查装置1包括主体33，抑制主体33与配管101内的内周面101a压接的旋转的旋转抑制装置37，移动装置35 使管体101内的主体33沿轴向移动，与配管101内的内周面101a压接;以及测量部11，其设置在主体33的轴向的位置，可以围绕主体33的中心轴线旋转。测量部11能够检查管道的状态。版权所有（C）2013，JPO＆INPIT

30. 发明专利

JP2004271407A Leak inspection device and leak inspection method 审中-公开
公开(公告)号：JP2004271407A
公开(公告)日：2004-09-30
申请号：JP2003064311
申请日：2003-03-11
申请人： Tokyo Gas Co Ltd , 東京瓦斯株式会社
发明人： WAKASA KIYOUSUKE , KOMORI MITSUNORI , SUYAMA KENJI , KOYANAGI SHINICHI
IPC分类号： G01M3/26 , G01M3/24 , G01M3/28
摘要： PROBLEM TO BE SOLVED: To suppress to the minimum a section to which gas supply is stopped, and to detect a leak spot by performing easily an airtightness test.
SOLUTION: A balloon 17 for airtightness provided inside a gas hose 51 is expanded by supplied water, and stuck on the inner wall of a gas pipe 5-1, and separates a space between the periphery of an inner pipe 11 and the inner wall of the gas pipe 5-1 from the gas pipe 5-1, and forms an airtight test section. A pump 31 supplies a gas in a bomb 33 to a pressurizing hose 27, and the gas is supplied to the airtight test section through the pressurizing hose 27. If a leak spot P exists in the airtight test section, a change such as pressure decline or the like in the airtight test section is observed. When performing the airtightness test in the test section, microphones 25-1, 25-2 detect a leak sound generated when the gas leaks from the leak spot P.
COPYRIGHT: (C)2004,JPO&NCIPI

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