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1 研制目的 苏州市已经建设成高标准农田3×10~4hm~2,并以每年近6.67×10~3hm~2的速度在发展。高标准农田配套了现代化的泵房、衬砌防渗渠道、砂石水泥机耕道路,却没有适当的放水口门与之相配套,造成高标准灌溉渠系不配套、不完善,导致水量严重流失。因此,苏州市水利农机局研制了新型适用的放水口门—苏口(SK)型旋塞式农田放水口门。该产品已获1997年江苏省水利科技进步三等奖。2 新型放水口门的结构形式及主要特点 苏州地区历来田间的放水口门大多采用插板式、涵洞式、正塞式、反塞式、拍门式等形式。这些口门有的止水不好,有的流最大小不能调节,
1 Purpose of Development Suzhou has been built to a high standard of farmland 3 × 10 ~ 4hm ~ 2, and the annual rate of nearly 6.67 × 10 ~ 3hm ~ 2 development. High standards of farmland supporting a modern pump room, lining impermeable channels, gravel cement farming road, but no appropriate outlet door to match, resulting in high standards of irrigation canal system is not complete, imperfect, leading to a serious loss of water. Therefore, Suzhou City Water Authority Agricultural Research and Development has developed a new type of water outlet door - Su mouth (SK) -type plug farmland outlet. The product has been in 1997 in Jiangsu Province water science and technology progress prize three. 2 new type of water outlet door structure and main features of the field has always been in Suzhou field outlet plate door, culvert, is plug, anti-plug, pat door and other forms. Some of these mouth stop water is poor, some can not regulate the largest small stream,