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11. 发明专利

JPS63248482A METHOD FOR LINING INNER WALL SURFACE OF PIPE 失效
公开(公告)号：JPS63248482A
公开(公告)日：1988-10-14
申请号：JP8197487
申请日：1987-04-02
申请人： OSAKA GAS CO LTD , NIPPON PLANT SERVICE CENTER KK
发明人： TANAKA TOSHIAKI , SHIMOJO TOMOHIRO , NIINO KIYONORI , SHINJO MAREO
IPC分类号： B05D7/22
摘要： PURPOSE:To drastically improve the lining efficiency by enabling the lining without completely drying the inner wall surface of the pipeline to be renewed. CONSTITUTION:A high-viscosity epoxy resin paint 5 capable of being cured in water is accumulated in a pipe 1 to be treated, and an elastic pig 6 is arranged at the rear of the paint. A pressure difference is generated between the space behind the pig 6 and the space before the paint 5, and the pig 6 and the paint 5 are integrally moved toward the outlet end of the pipe 1 to be treated while pushing ahead the water W retained in the pipe 1 by the paint 5. Namely, since the epoxy resin paint capable of being cured in water is used as the paint, the water in the pipeline need not be carefully removed by drying, and hence the efficiency in renewing the pipeline is drastically improved.

12. 发明专利

JPS63158181A METHOD OF CLEANING DUCT 失效
公开(公告)号：JPS63158181A
公开(公告)日：1988-07-01
申请号：JP31518186
申请日：1986-12-23
申请人： OSAKA GAS CO LTD , NIPPON PLANT SERVICE CENTER KK
发明人： TANAKA TOSHIAKI , SHIMOJO TOMOHIRO , NIINO KIYONORI , SHINJO MAREO
IPC分类号： B08B9/053 , B08B9/02

13. 发明专利

JPS63162077A METHOD FOR LINING LONG-DISTANCE PIPELINE 失效
公开(公告)号：JPS63162077A
公开(公告)日：1988-07-05
申请号：JP31518486
申请日：1986-12-23
申请人： OSAKA GAS CO LTD , NIPPON PLANT SERVICE CENTER KK
发明人： TANAKA TOSHIAKI , SHIMOJO TOMOHIRO , NIINO KIYONORI , SHINJO MAREO
IPC分类号： B05D7/22 , B05C7/08
摘要： PURPOSE:To form a film having uniform thickness over the whole length of a pipeline, by circulating an appropriate amt. of lining material plural times through the pipeline to be treated to smoothly advance the pig and lining material at a specified speed. CONSTITUTION:The lining material 3a and the elastic pig 4a are advanced from the opening on one side of the pipeline 1 to be treated with the lining material 3a ahead by the pressure difference between the spaces before and after both material and pig to form a lining film 10a on the inner wall of the pipeline. Before the film 10a is cured, a lining material 3b and another elastic pig 4b are advanced from the opening on one side of the pipeline 1 to be treated with the lining material 3b ahead by the pressure difference between the spaces before and after both pig and material to form a lining film 10b on the inner wall of the pipeline in succession to the film 10a. As a result, a lining film having uniform thickness can be formed over the whole length of the pipeline.

14. 发明专利

JPS63162076A METHOD FOR LINING PIPELINE 失效
公开(公告)号：JPS63162076A
公开(公告)日：1988-07-05
申请号：JP31518386
申请日：1986-12-23
申请人： OSAKA GAS CO LTD , NIPPON PLANT SERVICE CENTER KK
发明人： TANAKA TOSHIAKI , SHIMOJO TOMOHIRO , NIINO KIYONORI , SHINJO MAREO
IPC分类号： B05D7/22
摘要： PURPOSE:To improve working efficiency and to form a lining coated film having uniform thickness, by accumulating a lining material between two pigs made of an elastic material and inserted into a pipeline to be treated, and imparting a pressure difference between the front and rear of both pigs to reciprocate the pigs in the pipeline to be treated. CONSTITUTION:The lining material 17 is accumulated between the two pigs 6a and 6b made of an elastic material and inserted into the pipeline 1 to be treated, and a pressure difference is imparted between the front and rear of both pigs to reciprocate the pigs in the pipeline 1. As a result, the time and effort spent for the charge and discharge of the pigs and the lining material are remarkably reduced as compared with the conventional liq. phase-type lining method wherein the lining material is moved only in one direction, and the working efficiency is remarkably improved. Since the pigs and lining material are reciprocated, the lining coated film on the inner wall surface of bending part of the pipeline is not locally and extremely thinned, and the relatively thick and even lining coated film also having a smooth outer surface can be formed over the whole length of the pipeline.

15. 发明专利

JPS6331578A METHOD FOR LINING INNER WALL SURFACE OF PIPE 失效
公开(公告)号：JPS6331578A
公开(公告)日：1988-02-10
申请号：JP17627786
申请日：1986-07-26
申请人： OSAKA GAS CO LTD , NIPPON PLANT SERVICE CENTER KK
发明人： TANAKA TOSHIAKI , SHIMOJO TOMOHIRO , NIINO KIYONORI , SHINJO MAREO
IPC分类号： B05D7/22 , F16L58/10
摘要： PURPOSE:To efficiently form a film having a uniform thickness and a smooth outer surface, by a method wherein the pig and lining material positioned in a pipe to be treated are moved by utilizing the pressure difference before and after in an advance direction to be reciprocated in the pipe. CONSTITUTION:In a first process, a pig 6 and a lining material 5 advance at the almost constant speed corresponding to the pressure difference of the front and rear spaces thereof to form a lining film 5a to the inner wall surface of a pipe 1. In a second process, the pig is allowed to advance in the reverse direction and the film 5a formed in the first process is pressed to the wall of the pipe and the outer surface thereof is smoothly shaped to form a smooth film having a uniform thickness. Herein, pressure difference is generated by supplying operating fluids 2a, 2b having predetermined flow rate and predetermined pressure from the rear of the pig 6 while adjusting flow rate/pressure regulators 3a, 3b and reducing the pressure in the front space of the pig 6.

16. 发明专利

JPS63158182A METHOD OF WASHING DUCT 失效
公开(公告)号：JPS63158182A
公开(公告)日：1988-07-01
申请号：JP31518286
申请日：1986-12-23
申请人： OSAKA GAS CO LTD , NIPPON PLANT SERVICE CENTER KK
发明人： TANAKA TOSHIAKI , SHIMOJO TOMOHIRO , NIINO KIYONORI , SHINJO MAREO
IPC分类号： B08B9/053 , B08B9/02

17. 发明专利

JPS6331577A METHOD FOR LINING INNER WALL SURFACE OF PIPE 失效
公开(公告)号：JPS6331577A
公开(公告)日：1988-02-10
申请号：JP17627686
申请日：1986-07-26
申请人： OSAKA GAS CO LTD , NIPPON PLANT SERVICE CENTER KK
发明人： TANAKA TOSHIAKI , SHIMOJO TOMOHIRO , NIINO KIYONORI , SHINJO MAREO
IPC分类号： B05D7/22 , F16L58/10
摘要： PURPOSE:To form a uniform lining film having an increased thickness, by a method wherein a lining material and a pig is moved through a pipe from the inlet end thereof to the outlet end thereof in a first process and two pipes are moved from the outlet end to the inlet end so as to hold the lining material in a second process. CONSTITUTION:A lining material 5 is injected in a pipe 1 to be treated in quantity 1.1-1.2 times required calculated quantity and the outlet of said pipe is communicated with the open air and an operating fluid 2a having a predetermined flow rate and predetermined pressure is supplied in the pipe 1 and the lining material 5 is allowed to advance toward the outlet end 1b of the pipe at a predetermined speed through a pig 6a. When the pig 6a and the lining material 5 reach a recovery device 10, the lining material 5 is appropriately supplied and the inlet side is communicated with the open air and a pig 6b is added and an operating fluid 2b is supplied to allow the three of them to advance in the direction shown by an arrow. By this method, a film is formed in a first process and a first process and a film is further laminated to be smoothened.

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