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1. 发明专利

JP2004085478A Ultrasonic flaw detection method and device 有权
公开(公告)号：JP2004085478A
公开(公告)日：2004-03-18
申请号：JP2002249485
申请日：2002-08-28
申请人： Osaka Gas Co Ltd , Toa Nondestructive Inspection Co Ltd , Toyo Kanetsu Kk , トーヨーカネツ株式会社 , 大阪瓦斯株式会社 , 東亜非破壊検査株式会社
发明人： MUKONO HIDEYUKI , NAKAGAWA KAZUYUKI , FUCHIMOTO YOICHI , KUBO NAOSHIGE , TAKADA MASANORI
IPC分类号： G01N29/04 , G01N29/10
CPC分类号： G01N2291/0428 , G01N2291/044 , G01N2291/2695
摘要： PROBLEM TO BE SOLVED: To precisely detect a defect of a fillet weld part at a high S/N ratio.
SOLUTION: This ultrasonic flaw detection method for detecting the defect 20 of the fillet weld part 18 between the first sheet material 14 and the second sheet material 16 includes a step for transmitting an ultrasonic wave of a transverse wave from a surface of the first sheet material 14 toward a reverse face thereof, a step for receiving a creeping wave generated by reflecting the transverse wave reflected on the reverse face of the first sheet material 14 in the defect 20 of the fillet weld part 18 to be converted into an electric signal, and a step for detecting the presence of the electric signal to detect the presence of the defect 20. When the transverse wave is used as the transmission wave and when the creeping wave is used as the reflected wave, a reception level goes up to enhance detection precision.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2011241419A Thick steel plate for low temperature, and method of manufacturing the same 有权
标题翻译：用于低温的厚钢板及其制造方法
公开(公告)号：JP2011241419A
公开(公告)日：2011-12-01
申请号：JP2010112910
申请日：2010-05-17
申请人： Osaka Gas Co Ltd , Sumitomo Metal Ind Ltd , 住友金属工業株式会社 , 大阪瓦斯株式会社
发明人： KAWABATA TOMOYA , ARIMOCHI KAZUSHIGE , KAMO TAKAHIRO , ONISHI KAZUSHI , ANDO RYUICHI , YAMASHITA MASATERU , IWAHASHI HIROSHI , FUCHIMOTO YOICHI , KUBO NAOSHIGE , TAKADA MASANORI
IPC分类号： C22C38/00 , B21B1/38 , B21B3/00 , C21D8/02 , C22C38/08 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To inexpensively provide a Ni reduced type thick steel plate for low temperature excelling in breakage resistant safety like 9% Ni steel even in a low-temperature environment.SOLUTION: This thick steel plate for low temperature excelling in breakage resistant safety contains, by mass%, 0.01-0.12% of C, 0.01-0.3% of Si, 0.4-2.0% of Mn, ≤0.05% of P, ≤0.008% of S, >5.0% and
摘要翻译：要解决的问题：即使在低温环境下，也可以廉价地提供一种Ni还原型厚钢板，用于低耐破坏性安全性，如9％Ni钢。
解决方案：这种耐低温耐腐蚀安全性的厚钢板以质量％计含有C 0.01-0.12％，Si：0.01〜0.3％，Mn：0.4〜2.0％，P：0.05％ ≤0.008％的S，> 5.0％和<8.0％的Ni，0.002-0.08％的Al和≤0.0050％的N，其中残余部分包括Fe和杂质; 常温屈服强度≥590MPa; 在板厚为（1/4）t的位置处的残余γ量为≥3.0体积％; 平均有效晶粒尺寸≤5.5μm; 并且由下式（1）表示的值为≥1.3。还提供了这种制造方法。 y，-165℃ /σ y，RT （1）其中σ y，-165℃，σ y，RT 分别为-165℃的屈服强度[MPa]和常温下的屈服强度。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2000266295A VAPORIZED GAS AMOUNT CONTROL DEVICE 失效
公开(公告)号：JP2000266295A
公开(公告)日：2000-09-26
申请号：JP7118299
申请日：1999-03-17
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , OSAKA GAS CO LTD
发明人： FUCHIMOTO YOICHI , UENO YASUHIRO , MABUCHI NOBUHIRO , KODA YASUO , HAYASE TAKAHIRO , UCHIDA HIROYUKI , ARAI TATSUYA
IPC分类号： F17C13/00
摘要： PROBLEM TO BE SOLVED: To provide a vaporized gas amount control device which can relax a rapid decrease of a vaporized gas amount in the beginning of introduction and its continued rapid increase of the vaporized gas amount, even when new liquefied gas is introduced. SOLUTION: This control device comprises a receiving lead pipe 4 vertically extended in a liquefied gas tank to open a lower end part in the vicinity of a tank bottom part and having a socket 4a of an upward directional opening part communicating with vaporized gas in the tank in an upper end part, liquefied gas introduction pipe 6 introducing liquefied gas into the socket of the receiving lead pipe, and a liquefied gas spray device 12 spraying liquefied gas around the socket so as to cool vaporized gas in the tank introduced into the receiving lead pipe from the socket. The liquefied gas spray device 12 is constituted by an annular pipe 13 on a ring positioned in the upward of the socket 4a of the receiving lead pipe to surround it and a liquefied gas branch pipe 14 branching from a receiving pipe 5 introducing liquefied gas to the liquefied gas tank to supply the liquefied gas to the annular pipe 13. A plurality of nozzles 13a are provided in the annular pipe so as to spray liquefied gas around the socket.

4. 发明专利

JP2001289398A LIQUEFIED GAS RESERVOIR 失效
公开(公告)号：JP2001289398A
公开(公告)日：2001-10-19
申请号：JP2000106646
申请日：2000-04-07
申请人： OSAKA GAS CO LTD
发明人： UENO YASUHIRO , FUCHIMOTO YOICHI
IPC分类号： F17C13/00
摘要： PROBLEM TO BE SOLVED: To reduce a BOG generation amount during receiving LNG in a LNG reservoir. SOLUTION: A feed pipe 13 for introducing LNG into a LNG reservoir 11 is inserted into a communication port 16. A lower portion of a turkey red oil pipe 14 having the communication port 16 is skewed and a slit 17 is opened to the side face at the upper side of the inclined pipe. BOG which is swirled from surroundings during carrying LNG from the feed pipe 13 to the turkey red oil pipe 14 through the communication port 16 is gathered to an upper portion with buoyancy during carrying the LNG in the turkey red oil pipe 14 and returned from the slit 17 to a gas layer 11G in the LNG reservoir 11. A gas in the LNG to be discharged from a discharge port 15 at the lower end of the turkey red oil pipe 14 into a liquid layer 11L is reduced, therefore restricting a temporary increase in BOG generation amount after receiving the LNG.

5. 发明专利

JP2000240895A METHOD FOR TREATING BOIL-OFF GAS IN LIQUEFIED GAS STORAGE TANK AND LIQUEFIED GAS STORAGE DEVICE 失效
公开(公告)号：JP2000240895A
公开(公告)日：2000-09-08
申请号：JP4704299
申请日：1999-02-24
申请人： OSAKA GAS CO LTD
发明人： UENO YASUHIRO , FUCHIMOTO YOICHI , UJITA MUNEHARU
IPC分类号： F17C6/00 , F17C13/00
摘要： PROBLEM TO BE SOLVED: To perform, through simple constitution proper treatment of boil-off gas(BOG), generated during storage of LNG. SOLUTION: While LNG is being stored in a plurality of LNG storage tanks 10a and 10b, a generating boil off gas(BOG) is fed to a BOG compressor through a BOG piping 18 for treatment. During midnight in which the demand for BOG is low, an LNG transfer pump 11 is operated, and LNG is transferred from the LNG storage tank 10a to the LNG storage tank 10b. LNG flows in the receiving port 9 of a funnel pipe 15 through the tip of a feed pipe 14. The periphery of the receiving port 9 is sealed in an airtightly by a closing device 16 and BOG is guided via a flow rate control valve 17, after its guidance through a BOG piping 18. BOG is rolled in inflow LNG and discharged to a position lower a liquid level in the LNG storage tank 10b through a discharge port 5 at the lower end of the funnel pipe 15. A generated amount of BOG increases with the lapse of time. A timing at which BOG is sucked and discharged is matched with the timing for demand to effect proper treatment.

6. 发明专利

JPH0544900A MICROPRESSURE COOLING MAINTAINING METHOD FOR LOW-TEMPERATURE LIQUID TRANSPORT PIPE 失效
公开(公告)号：JPH0544900A
公开(公告)日：1993-02-23
申请号：JP20289691
申请日：1991-08-13
申请人： OSAKA GAS CO LTD , ISHIKAWAJIMA HARIMA HEAVY IND
发明人： OKAMOTO KUNIYOSHI , FUCHIMOTO YOICHI , OGI HIROMASA
IPC分类号： F17D1/08 , F17D1/20
摘要： PURPOSE:To enable use of a micropressure cooling maintaining method without generating abnormal vibration in a pipe for a low-temperature liquid transport pipe which is long in distance and large in difference of elevation. CONSTITUTION:A rising pipe part 10 of a low-temperature liquid transport pipe 1 which connects the low-temperature liquid transport pipe 1 to a horizontal pipe part 11 is bent in the stepped state, and an opening/closing valve 12 is provided at a horizontal part of each step and a plurality of horizontal pipe parts 11 are formed independently from the horizontal pipe part 11. When the low-temperature liquid transport pipe is not used, the opening/closing valve 12 is closed, a low-temperature liquid is supplied from another system to each of the horizontal pipe part 11 and a steam gas is discharged from each of the horizontal pipe parts 11.

7. 发明专利

JP2000240896A LIQUEFIED GAS STORAGE TANK 失效
公开(公告)号：JP2000240896A
公开(公告)日：2000-09-08
申请号：JP4704399
申请日：1999-02-24
申请人： OSAKA GAS CO LTD
发明人： UENO YASUHIRO , FUCHIMOTO YOICHI
IPC分类号： F17C6/00 , F17C13/00
摘要： PROBLEM TO BE SOLVED: To decrease boil-off gas generated, when liquefied gas is received. SOLUTION: LNG gas is received in an LNG storage tank 11 via a funnel pipe 14 after a flow of LNG via a feed pipe 13. A float 20 is situated in the funnel pipe 14 and serves as an obstacle to a drop of LNG received from the receiving port 18 of the funnel pipe 14, and also reduce an amount of boil off gas(BOG), rolled in accompanying its drop, through the decrease of a drop speed. Since the amount of BOG rolled when LNG is received is decreased, the peak of an amount of BOG generated in the LNG storage tank 11 increased after being decreased once, when LNG is received is also decreased. Treatment capacity necessary during the peak of BOG treatment equipment connected to a BOG piping 16 is decreased, and equipment cost is also decreased.

8. 发明专利

JPH10297694A NON-SLIP STRUCTURE OF FLAT BOTTOM CYLINDRICAL TANK 失效
公开(公告)号：JPH10297694A
公开(公告)日：1998-11-10
申请号：JP12159197
申请日：1997-04-23
申请人： OSAKA GAS CO LTD , KAWASAKI HEAVY IND LTD
发明人： FUCHIMOTO YOICHI , TANIGUCHI TOMOYO , MENTANI YUKIO
IPC分类号： B65D90/12 , B65D90/22
摘要： PROBLEM TO BE SOLVED: To prevent the sliding movement of a flat bottom cylindrical tank against a foundation structure in an earthquake, by forming a coating film at the underface of the bottom plate of the cylindrical tank to increase the static frictional coefficient between the underface of the bottom plate of the flat bottom cylindrical tank and the upper face of the foundation structure. SOLUTION: A double-structural low-temperature tank 1 is constituted of a foundation structure 2 including a foundation concrete 6 and a cold reserving material 7, an external layer tank 4 made of cold steel and provided with a cylindrical side plate 10 and a roof, an internal layer tank 5 made of cold steel, etc. A pure epoxy paint film 25 is formed at the underface of the bottom plate body 20a to remarkably increase the static frictional coefficient between the underface of the bottom plate body 20a and the upper face of the cold reserving material 7. In this way, even when a large earthquake has happened, the large frictional force acts between the bottom plate body and the cold reserving material and the horizontally sliding movement of the internal layer tank 5 against the foundation structure 2 at an earthquake can be securely prevented.

9. 发明专利

JPH06308056A RADIOGRAPHIC TEST METHOD 失效
公开(公告)号：JPH06308056A
公开(公告)日：1994-11-04
申请号：JP9774993
申请日：1993-04-23
申请人： OSAKA GAS CO LTD , HIHAKAI KENSA KK
发明人： FUCHIMOTO YOICHI , MABUCHI NOBUHIRO , IWAMOTO MASAAKI , YABUSHITA HIDEKI , ETO YOSHIMARU
IPC分类号： G01N23/18
摘要： PURPOSE:To provide the title method capable of ensuring a contrast also in the central part of a weld metal part and improving working efficiency by shortening an exposure time, in a proposed mask for carrying out a radiographic test, disposing the boundary part between a thickness decreasing part and uniform thickness part in the outside direction from the weld toe part of the weld metal part. CONSTITUTION:In the case where a specimen 100 is regarded as the trapezoidal excess metal 103 of the same metal in the transmission thickness thereof, the central side end 30e of a thickness decreasing part 30b is disposed in the inside from the top side end 101a of the trapezoidal excess metal, the boundary part 30d between a uniform thickness part 30a and the thickness decreasing part 30b is disposed in the outside from the bottom side end 103a of the trapezoidal excess metal, the increasing rate of the absorbing power of a mask in the transversal direction of a weld metal part 2 is set as large as an inside mask part 30c in the mask part 30c of the inside and a mask part 30f of the outside, from the top side end 101a of the trapezoidal excess metal, and the inspection is carried out.

10. 发明专利

JPH06118033A TEST METHOD FOR RADIATION TRANSMISSION 失效
公开(公告)号：JPH06118033A
公开(公告)日：1994-04-28
申请号：JP4759293
申请日：1993-03-09
申请人： OSAKA GAS CO LTD , HIHAKAI KENSA KK
发明人： FUCHIMOTO YOICHI , MABUCHI NOBUHIRO , IWAMOTO MASAAKI , YABUSHITA HIDEKI , ETO YOSHIMARU
IPC分类号： G01N23/18
摘要： PURPOSE:To-provide a test method for radiation transmission in which exposure time can be shortened to improve working efficiency, inspection between a base material part and a welded metal part near the base material part can be surely performed, and no density difference is caused in an image pickup part as in a conventional narrow radiation mask. CONSTITUTION:In a test method for radiation transmission, by using a pair of masks 3 having a determined thickness in the thickness direction of a base material 1 and radiation absorbing performance, a concentration image is provided on a photosensitive surface 3 by the radiation transmitted by the base material 1 and the welded metal part 2 to inspect a subject. As the masks 3, an uniform thickness part 3a having a fixed thickness arranged in a position separated from the welded metal part 2 and a thickness reducing part 3b in which the thickness is reduced toward the central side of the welded metal part 2 are preliminarily provided in the direction crossing the welded metal part 2, and the boundary part 3c between the uniform thickness part 3a and the thickness reducing part 3b is arranged on the base material 1 on the outside from the boundary position between the base material 1 and the welded metal part 2 to perform the inspection.

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