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101. 发明专利

JPH08267005A METHOD OF REPAIRING EXISTING PIPE 失效
公开(公告)号：JPH08267005A
公开(公告)日：1996-10-15
申请号：JP7194695
申请日：1995-03-29
申请人： TOKYO GAS CO LTD
发明人： TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI
IPC分类号： F16L1/00 , B05C7/08 , B05D7/14 , B05D7/22
摘要： PURPOSE: To obtain required pressure difference without applying high pressure from behind resin and pig in a method in which the resin and the pig are advance to coat the resin on the inner surface of a pipe by applying positive pressure and negative pressure to behind the resin and the pig and to before them respectively. CONSTITUTION: When forming a lining film M on the inner surface of a used line 1 such as gas pipes, the resin in a resin injection device 16 and then a lining pig 12 are introduced into the line 1. After that, air from an air pump 18 is forcibly fed into the line 1, and at the same time, a suction pump 2 is driven. In this way, the pig and the resin A are pressurized and advanced to form a resin lining film M on the inner surface of the line 1. At this time, a positive pressure measuring and regulating means 11 is installed on the air pump 18 side to keep the pipe interior pressure (positive one) on the air pump 18 side in a prescribed range, and a negative pressure measuring and regulating means 10 is installed on the suction pump 2 side to keep the pipe interior pressure (negative one) on the suction pump 2 side in a prescribed range.

102. 发明专利

JPH08150362A SUCTION DEVICE FOR EXISTING PIPE LINING METHOD 失效
公开(公告)号：JPH08150362A
公开(公告)日：1996-06-11
申请号：JP29473394
申请日：1994-11-29
申请人： TOKYO GAS CO LTD
发明人： TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI
IPC分类号： F16L58/10 , B05C7/08 , B05D7/22 , F16L55/16 , F16L55/18
摘要： PURPOSE: To provide a suction device of an existing pipe lining method constituted to regulate an in-pipe lining speed at the time of a stage for suction lining of a resin by a suction effect of a suction pump and to assure the easy and failproof checking as to whether plural pigs are recovered from the inside of the pipe or not. CONSTITUTION: This suction device has the suction pump which sucks and discharges the liquid in the pipe from a pipeline, a recovering tank which recovers the sucked liquid, a pig passage detecting means (constituted by connecting a detecting part 30 and alarm part 31 by a cord 32) which emits an alarm by detecting and counting the pigs when the pigs pass and a valve means 35 with an orifice which has an effect of regulating the lining speed and once stops the pigs to be recovered.

103. 发明专利

JPH08141501A PIG INTRODUCTION SYSTEM IN REPAIRING WORK OF LINING OF EXISTING PIPE 失效
公开(公告)号：JPH08141501A
公开(公告)日：1996-06-04
申请号：JP29350094
申请日：1994-11-28
申请人： TOKYO GAS CO LTD
发明人： TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI
IPC分类号： F16L58/10 , B05C7/08 , B05D7/22 , F16L55/16
摘要： PURPOSE: To appropriately carry out suction lining even when there exists a recessed part such as a cheese part on a pipeline by arranging smoothing pigs for application of lining in front and rear and introducing them into a pipe so as to position the pigs on the front side of an introduced resin plag when the resin is poured into the pipe. CONSTITUTION: When the lining on the inner face of a pipe is repaired, a liq. resin A with a required amt. for lining in a feeding pipe 7 is transferred to a branched position of a conduit 1 side by a liq. flow. In the first process, two smoothing pigs 3 for application of lining are arranged in front and rear so as to position the pigs on the front side of a resin plag and are introduced into a pipe. Then, by using a resin pouring apparatus 11, the resin A is poured in the pipe from an earthly opening part 14 by a liq. pressure obtd. by a liq. feeding pump 10. When there exists a cheese part 12 during the resin A is transferred in the pipe and even when one of the smoothing pigs 3 enters the recessed part of this cheese part 12, remaining one does not enter the recess and the following suction lining can be appropriately performed.

104. 发明专利

JPH06265131A EXHAUST TOP 失效
公开(公告)号：JPH06265131A
公开(公告)日：1994-09-20
申请号：JP5191093
申请日：1993-03-12
申请人： TOOSETSU KK , TOKYO GAS CO LTD
发明人： UEHARA YUTAKA , YAGI SHUICHI , HATAKEYAMA KOZO
IPC分类号： F23J13/00
摘要： PURPOSE:To obtain an exhaust top in which a danger of a burn is eliminated by setting a position of an exhaust port for discharging gas to a corridor and a protruding size to a corridor side is remarkably reduced. CONSTITUTION:An exhaust top is formed with an exhaust port 12 with a windbreak plate 14 by horizontally bending an upper end of a flatly formed vertical part 11 at a front surface side and a connecting port i3 by horizontally bending a lower end of the part 11 rearward. The top 10 is disposed at a corridor 1 side, connected to an exhaust cylinder 6, raised at its exhaust position and reduced in its protruding size.

105. 发明专利

JP2003175548A METHOD FOR CORRECTING REPAIR OF PIPING 审中-公开
公开(公告)号：JP2003175548A
公开(公告)日：2003-06-24
申请号：JP2001377185
申请日：2001-12-11
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIMIZU SEITA
IPC分类号： F16L55/26 , B05C7/08 , B05D7/22 , B29C63/36 , B29L23/00 , F16L1/00
摘要： PROBLEM TO BE SOLVED: To provide lining excellent in executing properties and in the finish, for any conditions of piping. SOLUTION: A line-passing belt 11 with a pig is inserted through an object pipeline 1. The pig is advanced from one end of the pipeline 1 toward the other and a resin lining layer is formed on the inner surface of the pipeline 1. A branch part IE of the pipeline 1 is put in an open state on the occasion and suction is made from the other end side of the pipeline 1. A leading pig 20 being connected to the line-passing belt 11 subsequently, a leading resin 21 is filled in the rear of this pig and further a reversal lining hose 22 is connected. The leading pig 20 is advanced to the other side and the reversal lining hose 22 is stuck on the resin lining layer formed previously. COPYRIGHT: (C)2003,JPO

106. 发明专利

JP2002320916A LINING CONSTRUCTION METHOD IN DUCT 失效
公开(公告)号：JP2002320916A
公开(公告)日：2002-11-05
申请号：JP2001126089
申请日：2001-04-24
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIMIZU SEITA
IPC分类号： B08B7/00 , B05D3/12 , B05D7/22 , B08B9/027 , F16L1/024
摘要： PROBLEM TO BE SOLVED: To provide a lining construction method in a duct that is able to obtain a uniformly-thick lining layer across the whole duct internal area regardless of an elongated condition of a duct channel and a different inner diameter without causing a liquid drop if a low-viscosity lining agent is used. SOLUTION: In such a lining construction method that is targeted to the inside of the duct, with a lining execution zone of the above duct channel as a target, the method is characterized in that a lining layer C is formed by circulating a low viscosity lining agent inside the duct.

107. 发明专利

JP2002239487A IN-PIPE CLEANING METHOD 失效
公开(公告)号：JP2002239487A
公开(公告)日：2002-08-27
申请号：JP2001037086
申请日：2001-02-14
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIMIZU SEITA
IPC分类号： B08B9/02 , F24H9/00
摘要： PROBLEM TO BE SOLVED: To provide an in-pipe cleaning method which is capable of cleaning the inside of a pipe without the occurrence of thickness reduction and without inducing environment pollution even in post treatment. SOLUTION: The in-pipe cleaning method for an existing pipeline using relatively soft material consists in using sodium bicarbonate of a specific grain size as a blasting agent, conveying the sodium bicarbonate by the air flow generated by the prescribed pressure difference induced in the pipe and bringing the sodium bicarbonate under the conveyance at a high speed into contact with deposits, thereby rubbing off the deposits and removing the deposits.

108. 发明专利

JP2002168372A METHOD OF REPAIRING WORK FOR EXISTING CONDUIT 失效
公开(公告)号：JP2002168372A
公开(公告)日：2002-06-14
申请号：JP2000366086
申请日：2000-11-30
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIGEFUJI TAKASHI , SHIMIZU SEITA
IPC分类号： F16L55/16 , B29C63/36 , F16L1/00 , F16L1/024
摘要： PROBLEM TO BE SOLVED: To provide a method of repairing a work in which a new conduit material can be easily led-in even when conduits of different diameters are continuous in the midway of laid sections. SOLUTION: This method is applied to existing conduits where the conduits of different diameters are continuously provided in the midway of the laid sections, so that the existing conduit is repaired by leading-in a new conduit material to the existing conduits. The new conduit material 1 is composed of a double pipe structure by combining a first conduit material 1A which can be inserted into the established section of a first aperture among the established sections of the existing conduits with a second conduit material 1B which can be inserted into the established section of a second aperture continuous with the conduit material 1A of the first aperture. After the new conduit material is inserted into the established section of the conduit having the first aperture, the conduit having the first aperture is extended to reach the established section of the conduit having the second aperture, when the second conduit material 1B is pulled from the first conduit material 1A to be laid.

109. 发明专利

JP2002166212A PIPE LINING DEVICE 失效
公开(公告)号：JP2002166212A
公开(公告)日：2002-06-11
申请号：JP2000366083
申请日：2000-11-30
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIGEFUJI TAKASHI , SHIMIZU SEITA
IPC分类号： F16L58/10 , B05C7/08 , B05C11/10
摘要： PROBLEM TO BE SOLVED: To form a lining film uniform in thickness on the inner surface of a pipe by using an easy structure even when an immediate setting resin is used. SOLUTION: A mix setting resin set immediately by mixing is used for an internal pipe lining device. The pipe lining device is composed of a spray hole and a chamber mixing resins carried in separately. The pipe lining device possesses a spray nozzle 2 circumferentially equipped with a ring member 2A which sets its central position by coming into contact with the inner surface of pipe to be lined and a resin carrying member 3 which is equipped with plural supplying paths to a resin mixing member inside the spray nozzle and united with the spray nozzle. The resin carrying member 3 is equipped with a spiral member 3C coming into contact with the inner surface of a pipe lined by the spray nozzle 2. A revolving movement is created because of the spiral member 3C, when the resin carrying member moves inside the pipe and the spray nozzle 2 is driven into revolution.

110. 发明专利

JP2002102758A DEVICE FOR LINING TUBE INTERIOR 失效
公开(公告)号：JP2002102758A
公开(公告)日：2002-04-09
申请号：JP2000295038
申请日：2000-09-27
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIMIZU SEITA
IPC分类号： F16L55/16 , B05B7/04 , B05B13/06 , B05C7/08 , B05D7/22 , B05D7/24
摘要： PROBLEM TO BE SOLVED: To provide a device for lining tube interior, which is constituted so that a lining film having uniform thickness is formed on the internal peripheral surface of the tube even in the case of using a quick setting resin. SOLUTION: This device is used for lining the tube interior by using the quick setting resin having a property of curing immediately by mixing and is provided with a spray nozzle 2, which is provided with a spray port and a chamber for mixing resins separately transported and has a ring member 2A provided on its external peripheral surface and setting the central position of its own by abutting on the internal surface of the tube to be lined, and a guide material 3, provided so as to be able to link with the spray nozzle 2 and having a wheel 5 provided on the external peripheral surface to enable to roll freely in the placing direction of the tube and in the peripheral direction. A resin transporting member 6 extending toward the spray nozzle 2 has such a structure 7 that the action of the guide material 3 is not communicated between it and the guide material.

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