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1. 发明专利

JP2000334564A FULLY AUTOMATIC PIPING WELDING DEVICE 失效
公开(公告)号：JP2000334564A
公开(公告)日：2000-12-05
申请号：JP14877899
申请日：1999-05-27
申请人： JGC CORP , NIKKI CONSTRUCTION CO LTD , AIKO ENGINEERING KK
发明人： INOUE KAZUMASA , TAKEUCHI ITSURO , FUJISAWA HIROSHI , KOIKE MICHIHIRO , AKIYOSHI KOJI , IGARASHI MIKIO , YAMAUCHI SHINYA , HIRASAWA YOSHIHIRO , MORITA MEITOKU
IPC分类号： B23K37/02 , B23K9/00 , B23K9/028 , B23K9/12 , B23K9/127 , B23K37/053 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To enable one worker to consistently perform works from an auto matic inspection to automatic welding, which are suitable for the high quality welding of piping having a small diameter at a narrow place. SOLUTION: The tube edge holding mechanisms 1, 2 of piping 9A, 9B are connected with connecting bars 3 constituted by putting plural bars in parallel, and an inspection welding head 4 movable on the connecting bars 3 is provided. The tube edge holding mechanisms are provided with means for holding a tube shaft at a specific position and fixing the edges of the piping regardlessly of a tube diameter, and the positions of the tube edge holding mechanisms are made adjustable in the X, Y and Z directions to the connecting bars. The straight line drive means of a fixing part and the rotating drive means 8 of a rotating part are given by the inspection, welding head to the fixing part 41 moving on the connecting bars and the rotating part 42 rotating around the shaft of the piping. A groove inspection sensor 5 for inspecting a gap between butted grooves and the apparent shift of a shaft and a TIG welding torch 6 are mounted on the rotating part.

2. 发明专利

JPH01147332A INSPECTION DEVICE FOR BACK PRESSURE MEASUREMENT TYPE TRANSMITTER 失效
公开(公告)号：JPH01147332A
公开(公告)日：1989-06-09
申请号：JP30576287
申请日：1987-12-04
申请人： JGC CORP
发明人： KATO TAKASHI , AKIYOSHI KOJI
IPC分类号： G01L27/00
摘要： PURPOSE:To automatize the inspection of a differential pressure measurement type transmitter by switching the input to a transmission line from a process side to be measured to an inspection side and applying specific pressure to the transmitter, comparing its pressure value with the output value of the transmitter and detecting their error. CONSTITUTION:In a state of process measurement, a solenoid valve 2 is closed and the transmitter 5 receives inputs 11 and 12 from the process to be measured through a switching means 1 and connecting pipes 15 and 16 to measure a process quantity. When an indication for inspection is supplied to a computer 4, the computer 4 opens the solenoid valve 2. Consequently, pressure air is supplied to the switching means 1 through a connecting pipe 21, so the connecting pipes 15 and 16 for the input to the transmitter 5 are connected to inputs 13 and 14 for inspection. The output signal 45 of the transmission line 5 of input zero is inputted to the computer 4 to confirm a zero point. Then, a pressure generator 3 generates pressure for the inspection, which is compared by a differential pressure transmitter 6 with pressure nearby the input 13 of the switching means 1 to confirm static pressure.

3. 发明专利

JPH06109895A METHOD AND APPARATUS FOR HUMIDIFYING AIR FOR AIR PURGE TYPE LEVEL GAGE 失效
公开(公告)号：JPH06109895A
公开(公告)日：1994-04-22
申请号：JP28556992
申请日：1992-09-30
申请人： JGC CORP
发明人： SHIMO EIJI , SUGIHARA YOSHIHIRO , AKIYOSHI KOJI
IPC分类号： G01F23/00 , G21F9/22
摘要： PURPOSE:To obtain a method and an apparatus for humidifying air for air purge measurement, capable of automatically supplying water for humidifying air, simplifying the apparatus itself and being manufactured at a low cost. CONSTITUTION:A porous film material 11 allowing gas and steam to permeate through but not allowing a liquid to permeate through, upper and lower spaces 12B and 12A in a vessel 12 divided by the porous film material 11, a pressurized water supply device 13 which supplies water into the lower space 12A so as to be filled up therein as pressurized water W of a prescribed pressure applied by the porous film material 11, and a pressurized air supply device 14 which supplies dry air having a larger pressure than the pressurized water W into this pressurized water W filled up by the pressurized water supply device 13, are provided. The dry air supplied from the pressurized air supply device 14 is humidified in the pressurized water W and humidified air A thus prepared is made to permeate through the porous film material 11 and supplied as air for purge to a differential pressure indicator 20 of an air purge type level gage.

4. 发明专利

JPH06117569A FLOW CONTROL VALVE 失效
公开(公告)号：JPH06117569A
公开(公告)日：1994-04-26
申请号：JP28556892
申请日：1992-09-30
申请人： JGC CORP
发明人： SHIMO EIJI , SUGIHARA YOSHIHIRO , AKIYOSHI KOJI
IPC分类号： F16K13/00 , F16K31/12
摘要： PURPOSE:To provide a flow control valve which is a simple structure valve mechanism disposed in a pipe line and does is not driven, which can surely control the opening and closing control for the flow rate of gas even though it is used for a long time, and which can be manufactured at a low cost even though it has a large bore. CONSTITUTION:A flow control valve is composed of a valve mechanism 10 composed of porous membranes 13, 13 which are located in a pipe line 11 at two positions separated from each other, and through which water 12 is impermeable but air A is permeable, and pressurized water 12 charged in a space defined between the porous membranes 13, 13, and a pressure control means 20 for controlling the pressure of pressurized water 12 in the valve mechanism 10, whereby the pressure control means 20 controls the pressure differential between the air A upstream of the valve mechanism 10 and pressurized water 12 so as to control the flow rate of the air A.

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