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81. 发明专利

JPH08141469A LIQUID FLOW CONTROLLER OF METHOD FOR REPAIRING LINING ON INSIDE SURFACE OF PIPE 失效
公开(公告)号：JPH08141469A
公开(公告)日：1996-06-04
申请号：JP29349594
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 , B05C11/10 , B05D7/22 , F16L55/16
摘要： PURPOSE: To eliminate the trouble in the lining installation generated in an expanded diameter part and reduced diameter part by providing a liquid flow controller with a limiter mechanism which outputs a stop signal to stop the supply of liquid flow by receiving the detection signal of the pressure of the liquid flow injected into a pipe when this pressure changes to the upper limit or above or lower limit or below of a set range. CONSTITUTION: After a leveling off pig 3 is introduced into a supply pipe 7, a resin is injected from an above-the-ground aperture 14 into the supply pipe 7 by a liquid pressure obtd. by a liquid feed pump 10. A resin transporting pig 4, a liquid absorbent 5 and a liquid shutting off pig 6 are thereafter introduced into the supply pipe 7 under the same liquid pressure. Next, the liquid B is injected via the fluid flow controller 20 into the supply pipe 7 by a liquid feed pump 10, by which the resin A is transferred to a branching position 2. At this time, the pressure in the supply pipe 7 changes suddenly when the expanded diameter part or the reduced diameter part exists in mid-way of the supply pipe 7. A fluctuation in the pressure is detected by a pressure gage of the fluid flow controller 20 and the supply of the fluid flow by the liquid feed pump 10 is stopped when the fluctuation of the pressure attains the upper limit or above or the lower limit or below of the set range.

82. 发明专利

JP2002320915A LINING CONSTRUCTION METHOD FOR PIPE ARRANGEMENT 失效
公开(公告)号：JP2002320915A
公开(公告)日：2002-11-05
申请号：JP2001126088
申请日：2001-04-24
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIMIZU SEITA
IPC分类号： F16L1/024 , B05D7/22 , B05D7/24
摘要： PROBLEM TO BE SOLVED: To provide a pipe-lining construction method that does not cause a thermal deterioration to a pipe arrangement even though whose structure is only adaptable to a thermal method as a pipe-arrangement connection method if a pipe arrangement made in such places, including one that is easily susceptible to hygienic restrictions and thermally adverse effects, is targeted. SOLUTION: This invention targets a pipe lining construction method for such a pipe arrangement that does not cause any adverse affect to human bodies but requires a junction by brazing. As a lining layer which contacts the inner surface of the pipe arrangement, a primary lining forming a foundation layer is made of a lining agent using inorganic materials. After the above primary lining is formed, a secondary lining to finish the surface of such lining that is made by the primary lining is made of inorganic materials. It is thus characterized that the lining layer B made by the secondary lining to fully cover the lining layer A made by the above primary lining maintains the surface condition to be stainless.

83. 发明专利

JP2002168376A LINING MATERIAL CARRYING DEVICE 失效
公开(公告)号：JP2002168376A
公开(公告)日：2002-06-14
申请号：JP2000366084
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： F16L9/19 , F16L9/06 , F16L11/127
摘要： PROBLEM TO BE SOLVED: To provide a lining material carrying device provided with such a constitution that insertion performance into a pipe is improved, and that damage on a protective member is prevented to improve durability. SOLUTION: This lining material carrying device using a hose 1 for carrying a lining material is provided with lining material supply passages 1A and 1B provided inside the hose 1, and the protective member 2 provided on an outer surface of the hose 1. The protective member 2 comprises a corrugated tube composed of a heat-resistant material. The protective member 2 has a smooth surface 2A which can be jointed with the hose 1 at a facing position of the corrugated tube to the hose 1. On the outermost side, a layer 2C having smaller irregularities than corrugated parts 2B is provided.

84. 发明专利

JP2002166222A EMERGENT LEAKING REPAIRING METHOD OF CONDUIT 失效
公开(公告)号：JP2002166222A
公开(公告)日：2002-06-11
申请号：JP2000366087
申请日：2000-11-30
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIMIZU SEITA
IPC分类号： F16L55/16 , B05D7/14 , B05D7/24
摘要： PROBLEM TO BE SOLVED: To provide an emergent leaking repairing method of conduits that not only can seal leaking places thereof without failure by a simple work in doing repair works, but dispense with a confirmatory work after such works. SOLUTION: This invention relates to an emergent repairing work method to seal any leaking places in conduits thereof by following features. At first, a low-viscous reactive resin material R that can be assimilated with conduit materials by an intermolecular bond is filled into a conduit 1. At a prescribed time after the above reactive resin material R contacts with the inner face of the conduit 1 to react, any excess portion out of the reactive resin material R that does not contact with the inner face of the conduit 1 is discharged outside of the conduit 1.

85. 发明专利

JP2002102795A METHOD FOR LINING PIPE INTERIOR 失效
公开(公告)号：JP2002102795A
公开(公告)日：2002-04-09
申请号：JP2000294963
申请日：2000-09-27
申请人： TOKYO GAS CO LTD , THREE BOND CO LTD
发明人： YAGI SHUICHI , SHIGEFUJI TAKASHI , SHIMIZU SEITA , SATO YUKIO , ARAKADO KIYOSHI
IPC分类号： F16L55/16 , B05C7/08 , B05D7/22 , C07D405/14 , C07D413/14 , G01N21/77 , G01N21/78 , G01N31/00
摘要： PROBLEM TO BE SOLVED: To provide a method for lining a pipe interior capable of forming a lining film of a uniform thickness by preventing dripping of a resin jetted until hardening. SOLUTION: As for the method for lining the pipe interior to be used in the case of improving and correcting a pipe line 1, a spraying nozzle body 2 movable in the pipe line 1 is prepared, the lining resin consisting of a quick setting resin in the state of mist is jetted in the shape of a hollow cone toward the inner surface of the pipe line 1 from the body 2, and rotary force in the peripheral direction of the pipe is applied until the jetted lining resin SP is hardened.

86. 发明专利

JP2002102759A DEVICE FOR LINING TUBE INTERIOR 失效
公开(公告)号：JP2002102759A
公开(公告)日：2002-04-09
申请号：JP2000295040
申请日：2000-09-27
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , SHIGEFUJI TAKASHI , SHIMIZU SEITA
IPC分类号： F16L58/04 , B05B7/24 , B05B13/06 , B05C7/08 , F16L55/16
摘要： PROBLEM TO BE SOLVED: To provide a device for lining tube interior which is applied for a tube having a small diameter and constituted so that a lining film can be formed by spraying a resin. SOLUTION: In the device for lining the tube interior, which is constituted so that the lining film can be formed on the internal surface of the tube by spraying the resin transported from a housing part from a spray nozzle, a one pack type quick setting resin such as a silyl group-containing special polymer, a one pack type urethane or a moisture curing type resin is used as a resin.

87. 发明专利

JP2002031291A WATER COLLECTION PIPE REGENERATION METHOD FOR GAS CONDUIT 失效
公开(公告)号：JP2002031291A
公开(公告)日：2002-01-31
申请号：JP2000216504
申请日：2000-07-17
申请人： TOKYO GAS CO LTD , HAKKO CO
发明人： YANAGIOKA YASUHIRO , KAWAGUCHI YASUSADA , NAKAGAWA TETSUO , YAGI SHUICHI , SHIGEFUJI TAKASHI , OSHIMA KENJI , NOZAKI SHUICHI , MAKITA YUSUKE
IPC分类号： F16L55/16 , B05C7/04 , B05D7/22
摘要： PROBLEM TO BE SOLVED: To provide a water collection pipe regeneration method for preventing gas leakage from the water collection pipe attached to a gas conduit due to aging corrosion. SOLUTION: A stainless steel pipe 10 having the outside diameter smaller than the inside diameter of the water collecting pipe 3, an expansion type stopper jig 20, and a resin injection hose 11 positioned between the water collection pipe 3 and the stainless steel pipe 10 are inserted from an opening end of the existing water collection pipe 3 in the ground side. After the bottom end opening part of the water collection pipe 3 and the bottom end opening part of the stainless steel pipe 10 are tightly closed by the expansion type stopper jig 20, urethane resin R is injected and closes between the outer circumferential face of the stainless steel pipe 10 and the internal circumferential face of the water collection pipe 3 by the resin injection hose 11. Then, the expansion type stopper jig 20 id drawn out from the water collection pipe 3 and the stainless steel pipe 10 so that the bottom end opening part of the stainless steel pipe 10 and the bottom end opening part of the water collection pipe 3 are communicated together.

88. 发明专利

JP2002031290A SEAL JIG 失效
公开(公告)号：JP2002031290A
公开(公告)日：2002-01-31
申请号：JP2000216505
申请日：2000-07-17
申请人： TOKYO GAS CO LTD , HAKKO CO
发明人： YANAGIOKA YASUHIRO , KAWAGUCHI YASUSADA , NAKAGAWA TETSUO , YAGI SHUICHI , SHIGEFUJI TAKASHI , OSHIMA KENJI , NOZAKI SHUICHI , MAKITA YUSUKE
IPC分类号： F16L55/12 , F16J15/10
摘要： PROBLEM TO BE SOLVED: To provide a seal jig capable of completely and tightly closing a prescribed position of a pipe by being detachably inserted in the pipe. SOLUTION: In the seal jig closing the pipe inside by a seal bag inserted in the pipe in a contracted state by the load of an internal pressure, a skirt 10C formed of an elastic material is externally fitted around the outer circumferential face of the seal bag 10A and, when the seal bag 10A is inflated by the expansion of the seal bag 10A, the skirt is expanded diametrically outward with the inflation of the seal bag 10A so as to be pressedly sandwiched in a space toward the internal circumferential face of the pipe P.

89. 发明专利

JPH11182752A PIPE THREADING AUXILIARY TOOL 失效
公开(公告)号：JPH11182752A
公开(公告)日：1999-07-06
申请号：JP35557097
申请日：1997-12-24
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , ITAGAKI MASAAKI , MORITA KENJI
IPC分类号： F16L19/02
摘要： PROBLEM TO BE SOLVED: To prevent the damage to a pipe generated in forming a thread part at the end part of the pipe by a threading machine and to perform threading to a thin pipe and a synthetic resin pipe such as a PVC pipe by the threading machine without a problem. SOLUTION: A cylindrical body 10 is so formed that its outer diameter is enlarged by the action of force of pressing to radially enlarge a divided piece 10b of the cylindrical body 10. A locknut 12 mounted from the outside of a flange part 10a of the cylindrical body 10 is fastened to a shank 11a of a diameter enlarging member 11. A conical part 11b of the diameter enlarging member 11 is therefore pushed into a pipe, and the tapered face of the conical part 11b presses to enlarge the open end of the divided piece 10b. The diameter enlarged cylindrical body 10 presses a machined pipe from the inner surface through O-rings 13 arranged at the outer side face, to reinforce the machined pipe.

90. 发明专利

JPH1137381A RENOVATINGLY REPAIRING CONSTRUCTION METHOD OF EXISTING PIPELINE 失效
公开(公告)号：JPH1137381A
公开(公告)日：1999-02-12
申请号：JP19991297
申请日：1997-07-25
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , ITAGAKI MASAAKI , MORITA KENJI
IPC分类号： F16L55/16
摘要： PROBLEM TO BE SOLVED: To provide a renovatingly repairing construction method by which an amount of resin necessary for adhering a lining tube, can be ensured by preventing the insertion of the resin into a branch member in a case when a prepared pipeline comprising the branch member on a desired position, is to be renovatingly repaired. SOLUTION: In a renovatingly repairing method, the negative pressure is generated from one edge of a prepared pipeline 1 which comprises a branch member 3 on a desired position, and an adhesive resin and a lining tube which is sticked on a pipeline inner wall face by the adhesive resin, are moved by the negative pressure to perform the lining onto the lining tube. The adhesive resin and the lining tube are made to pass through in a condition that an opening face of a branch part 1A communicated with the prepared pipeline 1, is closed by a plug member 20 which is removably mounted to the branch member 3, and of which a position of a point edge part is locatable so that it is located on the almost same plane as the opening face of the branch member 3 corresponding to the fastening amount when it is fastened to a screw part formed on the branch member 3.

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