CN102535406B - 压差控制式高精度逆止阀设备及应用方法 - Google Patents
压差控制式高精度逆止阀设备及应用方法 Download PDFInfo
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CN103469773B (zh) * | 2013-09-18 | 2015-04-29 | 长江水利委员会长江科学院 | 压差放大式逆止阀设备及应用方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2104242U (zh) * | 1991-11-04 | 1992-05-13 | 仇十邦 | 渠道防渗减压阀 |
JPH0579572A (ja) * | 1991-09-20 | 1993-03-30 | Hitachi Ltd | 高圧ガス逆流防止弁 |
GB2305712A (en) * | 1995-09-15 | 1997-04-16 | Forge G | Non-return valve |
JP2002323157A (ja) * | 2001-04-27 | 2002-11-08 | Mitsubishi Electric Corp | 逆流防止弁 |
CN201041248Y (zh) * | 2007-04-25 | 2008-03-26 | 陶柏林 | 水利渠道用防渗逆止排水阀 |
CN101736721A (zh) * | 2010-02-10 | 2010-06-16 | 陈鸿飞 | 灌溉防渗渠道排水管逆止装置 |
CN202187361U (zh) * | 2011-06-28 | 2012-04-11 | 陈鸿飞 | 渠坡防渗排水管逆止器 |
CN202401428U (zh) * | 2012-01-09 | 2012-08-29 | 长江水利委员会长江科学院 | 压差控制式高精度逆止阀设备 |
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Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0579572A (ja) * | 1991-09-20 | 1993-03-30 | Hitachi Ltd | 高圧ガス逆流防止弁 |
CN2104242U (zh) * | 1991-11-04 | 1992-05-13 | 仇十邦 | 渠道防渗减压阀 |
GB2305712A (en) * | 1995-09-15 | 1997-04-16 | Forge G | Non-return valve |
JP2002323157A (ja) * | 2001-04-27 | 2002-11-08 | Mitsubishi Electric Corp | 逆流防止弁 |
CN201041248Y (zh) * | 2007-04-25 | 2008-03-26 | 陶柏林 | 水利渠道用防渗逆止排水阀 |
CN101736721A (zh) * | 2010-02-10 | 2010-06-16 | 陈鸿飞 | 灌溉防渗渠道排水管逆止装置 |
CN202187361U (zh) * | 2011-06-28 | 2012-04-11 | 陈鸿飞 | 渠坡防渗排水管逆止器 |
CN202401428U (zh) * | 2012-01-09 | 2012-08-29 | 长江水利委员会长江科学院 | 压差控制式高精度逆止阀设备 |
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Inventor after: Cheng Zhanlin Inventor after: Zuo Yongzhen Inventor after: Wu Dexu Inventor after: Ding Hongshun Inventor after: Cheng Yonghui Inventor after: Zheng Yanxia Inventor after: Liu Jun Inventor before: Cheng Zhanlin Inventor before: Zuo Yongzhen Inventor before: Ding Hongshun |
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Free format text: CORRECT: INVENTOR; FROM: CHENG ZHANLIN ZUO YONGZHEN DING HONGSHUN TO: CHENG ZHANLIN ZUO YONGZHEN WUDEXU DING HONGSHUN CHENG YONGHUI ZHENG YANXIA LIU JUN |
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