发明授权
- 专利标题： Method for water hammerless opening of fluid passage, and method for supplying chemical solutions and device for water hammerless opening for which the method is used
- 专利标题（中）： 流体通道的无水锤打开方法，以及用于提供化学溶液的方法和使用该方法的无水锤打开装置
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申请号： US12422136申请日： 2009-04-10
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公开(公告)号： US08047225B2公开(公告)日： 2011-11-01
- 发明人: Tadahiro Ohmi , Kouji Nishino , Masaaki Nagase , Ryousuke Dohi , Nobukazu Ikeda , Ryutaro Nishimura
- 申请人： Tadahiro Ohmi , Kouji Nishino , Masaaki Nagase , Ryousuke Dohi , Nobukazu Ikeda , Ryutaro Nishimura
- 申请人地址： JP Osaka JP Miyagi
- 专利权人： Fujikin Incorporated,Tadahiro Ohmi
- 当前专利权人： Fujikin Incorporated,Tadahiro Ohmi
- 当前专利权人地址： JP Osaka JP Miyagi
- 代理机构： Griffin & Szipl, P.C.
- 优先权： JP2004-011497 20040120
- 主分类号： F16K31/42
- IPC分类号： F16K31/42
摘要：
The water hammerless opening device comprises an actuator operating type valve installed on the fluid passage, an electro-pneumatic conversion device to supply the 2-step actuator operating pressure Pa to the afore-mentioned actuator operating type valve, a vibration sensor removably fixed to the pipe passage on the upstream side of the actuator operating type valve, and a tuning box to which the vibration detecting signal Pr detected by the vibration sensor is inputted, through which the control signal Sc to control the step operating pressure Ps′ of the afore-mentioned 2-step actuator operating pressure Pa is outputted to the electro-pneumatic conversion device, and with which the 2-step actuator operating pressure Pa, of the step operating pressure Ps′ which makes the vibration detecting signal Pr nearly zero, is outputted from the electro-pneumatic conversion by adjusting the control signal Sc.
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