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1. 发明专利

JP2014025546A Steam pressure reducing valve 审中-公开
标题翻译：蒸汽减压阀
公开(公告)号：JP2014025546A
公开(公告)日：2014-02-06
申请号：JP2012166978
申请日：2012-07-27
申请人： Kurimoto Ltd , 株式会社栗本鐵工所
发明人： NAGASE ATSUSHI , OKADA AKIRA
IPC分类号： F16K3/32
摘要： PROBLEM TO BE SOLVED: To perform pressure reduction and flow rate adjustment of high-temperature high-pressure steam by an inexpensive valve.SOLUTION: A porous variable orifice valve V is adopted as a steam pressure reducing valve. The porous variable orifice valve includes a fixed porous disk 2 having a plurality of ports 2a along a channel cross section and a movable orifice disk 3 having a plurality of orifices 3a corresponding to respective ports of the fixed porous disk and attached movably over a position for closing respective ports of the fixed porous disk and a position for opening the ports in a valve box 1. When the movable orifice disk is moved, a correspondence degree of openings between respective ports and their corresponding orifices is changed, a circulation cross section of steam (a) is obtained correspondingly to the correspondence degree and a steam flow rate and a degree of pressure reduction are adjusted. Since the flow rate adjustment and pressure reduction are performed in each individual port and orifice, flow rate adjustment and pressure reducing action are individually performed in the whole circulation cross section of a circulating channel, so that as compared with a case that pressure reducing action is performed only on one position or several positions, noise can be reduced. Since a spread porous variable orifice valve V is used, the price of the valve can be reduced.
摘要翻译：要解决的问题：通过便宜的阀进行高温高压蒸汽的压力降低和流量调节。解决方案：采用多孔可变孔阀V作为蒸汽减压阀。多孔可变孔阀包括固定多孔盘2，其具有沿着通道横截面的多个端口2a和可移动孔板3，活动孔盘3具有对应于固定多孔盘的相应端口的多个孔口3a，并可移动地附接在用于关闭固定多孔盘的各个端口和用于打开阀箱1中的端口的位置。当可移动孔盘移动时，各个端口与其对应的孔口之间的开口的对应程度改变，蒸汽的循环横截面（a）相应于对应度获得，并且调节蒸汽流量和减压度。由于在各个端口和节流孔中进行流量调整和压力降低，所以在循环通道的整个循环截面中分别进行流量调节和减压作用，因此与减压作用相比，仅在一个位置或多个位置执行，可以降低噪声。由于使用散布的多孔可变孔口阀V，所以可以降低阀的价格。

2. 发明专利

JP2012077845A Eccentricity butterfly valve 审中-公开
标题翻译：偏心蝶阀
公开(公告)号：JP2012077845A
公开(公告)日：2012-04-19
申请号：JP2010223919
申请日：2010-10-01
申请人： Kurimoto Ltd , 株式会社栗本鐵工所
发明人： AKIMOTO ETSUKO , NAGASE ATSUSHI , OKADA AKIRA
IPC分类号： F16K1/42 , F16K1/22 , F16K1/34 , F16K1/36
摘要： PROBLEM TO BE SOLVED: To provide a valve seat structure that reduces wear of a rubber seal when a valve is closed in an eccentric butterfly value having a rubber seal in a valve body.SOLUTION: In an eccentric butterfly valve provided with a rubber-made seat ring 4' on the valve body 3 side, the cross-sectional shape of a part of a seal surface 6 of a metal valve seat 5 on a valve box side of a valve cross-sectional shape passing through the center of a flow passage and on a plane perpendicular to a valve rod is formed a line segment 7, the line segment 7 is substantially perpendicular to a straight line connecting a virtual free end of the rubber-made seat ring 4' in the position where the valve is fully closed and the center of turning, and on a straight line put closer to the turning center side from the virtual free end by an amount of rubber tightening interference, and a solid shape of the seal surface 6 is an inner surface of a conic formed by causing the line segment 7 to move around the inner surface of the valve box, the line segment 7 is made to include the contact part between the rubber-made seat ring 4' in the position where the valve is fully closed and the metal valve seat 5 and to have a length of three times or less of the contact width thereof.
摘要翻译：要解决的问题：提供一种阀座结构，当在阀体中具有橡胶密封件的偏心蝶形值中关闭阀时，减小橡胶密封件的磨损。解决方案：在阀体3侧设置有橡胶制的座圈4'的偏心蝶阀中，阀体5上的金属阀座5的密封面6的一部分的截面形状通过流路中心和垂直于阀杆的平面上的阀横截面形状的一侧形成线段7，线段7基本上垂直于连接着线段7的虚拟自由端的直线在阀完全关闭的位置处的橡胶制的座环4'和转动中心，并且在与虚拟自由端更靠近转向中心侧的直线上产生橡胶紧固干扰量的固体，以及固体密封表面6的形状是通过使线段7围绕阀盒的内表面移动而形成的圆锥的内表面，线段7被制成包括橡胶制的座环4之间的接触部分在阀完全关闭的位置 d和金属阀座5，并且其长度为其接触宽度的三倍以下。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2012062914A Butterfly valve 审中-公开
标题翻译：蝶阀
公开(公告)号：JP2012062914A
公开(公告)日：2012-03-29
申请号：JP2010205330
申请日：2010-09-14
申请人： Kurimoto Ltd , 株式会社栗本鐵工所
发明人： AKIMOTO ETSUKO , NAGASE ATSUSHI , OKADA AKIRA
IPC分类号： F16K1/226
摘要： PROBLEM TO BE SOLVED: To surely prevent a valve body rubber seat of a butterfly valve from slipping off and to reduce opening/closing torque of a valve body.SOLUTION: Entire sliding contact portion of the valve body rubber seat 10 pinch-held by a valve plate 8 fixed to a valve bar 3 and a seat retainer 9 fixed to the valve plate 8 against a valve case valve seat 2d is coated with super-high molecular polyethylene, thereby friction force between the rubber seat 10 and the valve case valve seat 2d is reduced and the opening/closing torque of the valve body 4 is suppressed. Also, due to hardly-elongated property of the coating, deformation of the rubber seat 10 in the diameter-expanding direction is suppressed, and thereby the rubber seat 10 can be surely prevented from slipping off.
摘要翻译：要解决的问题：确保防止蝶阀的阀体橡胶座滑落并减小阀体的开/关扭矩。解决方案：固定在阀杆3上的阀板8夹紧的阀体橡胶座10的整个滑动接触部分和固定在阀板8上的阀座保持器9抵靠阀壳阀座2d被涂覆使用超高分子量聚乙烯，由此橡胶座10和阀壳阀座2d之间的摩擦力减小，并且阀体4的开闭扭矩被抑制。此外，由于涂层几乎不伸长的性质，橡胶座10在扩径方向上的变形被抑制，从而可以可靠地防止橡胶座10滑落。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2015059616A 高温流体用仕切弁审中-公开
标题翻译：高温流体阀门
公开(公告)号：JP2015059616A
公开(公告)日：2015-03-30
申请号：JP2013193863
申请日：2013-09-19
申请人：株式会社栗本鐵工所 , Kurimoto Ltd
发明人： NAGASE ATSUSHI , OKADA AKIRA
IPC分类号： F16K49/00 , F16K3/02
摘要：【課題】安価な冷却構造の弁体の高温流体用仕切弁を提供する。【解決手段】弁体20内部に冷却水aの流路22を有する高温流体用仕切弁Vである。その流路は、上流側から弁体外周を周回した後、千鳥足状に蛇行して下流側に至る。周回する流路22aは同じく周回する隔壁23a、23bによって形成され、蛇行する流路22bは、周回する隔壁23bの内面から交互に突出する隔壁23cによって形成されている。冷却水aは、弁体外側全周を周回して、最も冷却を優先すべき弁体外周部分を冷却した後、その内部の蛇行流路22b内を千鳥足状に蛇行して弁全体を冷却する。弁体20は、隔壁23a、23b、23cを有する一方の弁板と、その一方の弁板にその周囲で溶接して一体とされた他方の弁板とからなり、その両弁板を隔壁を介して溶接することによって一体にする。【選択図】図2
摘要翻译：要解决的问题：提供一种用于高温流体的闸阀，其包括具有不太昂贵的冷却结构的阀构件。解决方案：用于高温流体的闸阀V具有冷却水（a）内的流动通道22 阀体20.流动通道在从其上游侧围绕阀体的外周流动到达下游侧时形成Z字形。周围的流路22a由相似的周围分隔壁23a，23b形成，由间隔壁23c形成的锯齿形状流路22b由间隔壁23b的内表面交替地突出。冷却水（a）绕着阀体的整个外圆周排列，以冷却需要最高优先级冷却作用的阀体的外圆周部分，然后在内部曲折流道22b内以锯齿形冷却整个阀门。阀体20包括一个具有分隔壁23a，23b和23c的阀板，另一个阀板焊接在一个阀板周围并与之成一体，两个阀板通过分隔壁焊接并彼此一体地组装。

5. 发明专利

JP2013083285A Butterfly valve 审中-公开
标题翻译：蝶阀
公开(公告)号：JP2013083285A
公开(公告)日：2013-05-09
申请号：JP2011222592
申请日：2011-10-07
申请人： Kurimoto Ltd , 株式会社栗本鐵工所
发明人： NAGASE ATSUSHI
IPC分类号： F16K1/22 , F16K47/02
摘要： PROBLEM TO BE SOLVED: To provide a butterfly valve, in which cavitation can be effectively suppressed on the orifice side up to an opening of a medium degree, and which is easily manufactured.SOLUTION: A semi-disc-like sub-valve element 5 having a large number of flow holes 16 is arranged on the downstream side on the orifice side of a valve element 4, and when the sub-valve element 5 integrally rotates with the valve element 4, a peripheral edge part of the sub-valve element 5 slidingly contacts with or approach an orifice side concave spherical surface part 11 of an inner surface of a valve casing body 2a, so that fluid is straightened when passing through the flow holes 16 of the sub-valve element 5 and the cavitation on the orifice side is restrained up to the opening of the medium degree, and the butterfly valve can be more easily and inexpensively manufactured than a conventional butterfly valve of using a plate member having a porous convex spherical surface.
摘要翻译：要解决的问题：提供一种蝶阀，其中可以在孔口侧上有效地抑制气蚀直到中等程度的开口，并且易于制造。解决方案：在阀元件4的孔口侧的下游侧配置有具有大量流通孔16的半圆盘状的副阀体5，当副阀体5一体旋转时与阀元件4一起，副阀元件5的周缘部与阀壳体2a的内表面的孔侧凹面球面11滑动接触或接近，使得当通过阀体4时，流体被拉直副阀元件5的通气孔16和孔口侧的气蚀被限制到中等程度的开度，与使用具有板阀构件的板构件的传统蝶形阀相比，能够更容易且更廉价地制造蝶形阀多孔凸球面。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012162953A Water channel decompression element and decompression structure as well as bypass line installation method for hydraulic power generation using the same 审中-公开
标题翻译：水通道分解元件和分解结构以及使用其的液压发电的旁路管线安装方法
公开(公告)号：JP2012162953A
公开(公告)日：2012-08-30
申请号：JP2011025632
申请日：2011-02-09
申请人： Kurimoto Ltd , 株式会社栗本鐵工所
发明人： OKADA AKIRA , NAGASE ATSUSHI , NISHIKAWA HIROTOSHI
IPC分类号： E02B9/06
CPC分类号： Y02E10/22
摘要： PROBLEM TO BE SOLVED: To provide a water channel decompression structure capable of being installed at low cost and a bypass line installation method for hydroelectric power generation using the structure.SOLUTION: A part of headrace and discharge channel between which a Francis water turbine of an existing hydraulic power plant exists is used as a bypass channel of a new hydraulic power plant. A water turbine is removed except for a spiral casing 1 of the turbine. A decompression element is placed at the center part of the casing 1 left in the bypass water channel. The decompression element formed in cylindrical shape has a porous member 2 with multiple holes 2a through which water coming from upstream into the casing 1 passes to adjust a water pressure of downstream in the water channel to be lower than that of upstream to form a water channel decompression structure. Thus, a water channel decompression structure and a bypass line for hydraulic power generation can be installed at low cost by using the casing 1 of an used water turbine.
摘要翻译：要解决的问题：提供能够以低成本安装的水路减压结构和使用该结构的用于水力发电的旁路管路安装方法。
解决方案：现有液压发电厂的弗朗西斯水轮机之间的头部和排放通道的一部分被用作新的液压发电厂的旁通通道。除了涡轮机的螺旋壳体1之外，除去水轮机。减压元件放置在旁路水路中的壳体1的中心部分。形成为圆筒形状的减压元件具有多孔构件2，具有多个孔2a，来自上游的水从壳体1通过，以将水通道中的下游水压调节为低于上游的水压，形成水通道减压结构。因此，通过使用二手水轮机的壳体1，可以以低成本安装水路减压结构和水力发电旁路管路。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2013119867A Butterfly valve 有权
标题翻译：蝶阀
公开(公告)号：JP2013119867A
公开(公告)日：2013-06-17
申请号：JP2011266614
申请日：2011-12-06
申请人： Kurimoto Ltd , 株式会社栗本鐵工所
发明人： NAGASE ATSUSHI , OKADA AKIRA
IPC分类号： F16K1/22 , F16K47/02
CPC分类号： F16K47/045 , F16K1/222
摘要： PROBLEM TO BE SOLVED: To prevent an increase in a pressure loss at a large opening degree while effectively suppressing cavitation.SOLUTION: A butterfly valve includes, as basic constituent members, a cylindrical valve casing 1 functioning as a part of a flow passage, a valve rod 2 intersecting the flow passage, and a disk-like valve element 3 turning with the valve rod 2 as an axis; and the valve opens and closes the flow passage in the valve casing 1 with turning of the valve element 3. The valve further includes: a porous plate member 7 in a partial sphere shell form, at a downstream side of a part on the orifice side of the valve element 3, to straighten a fluid passing through through-holes 8 of the porous plate member 7 toward the center of the flow passage; and a concave spherical part 10 in a part to be the nozzle side of the valve casing 1. When the valve element 3 is turned, within a range of a predetermined opening degree or smaller, the outer circumference of the part to be the nozzle side of the valve element 3 slides on or approaches the concave spherical part 10, and the flow of a fluid is blocked or suppressed at the nozzle side.
摘要翻译：要解决的问题：为了防止在大的开度下的压力损失的增加同时有效地抑制空化。解决方案：蝶阀包括作为流路的一部分起作用的圆柱形阀壳体1，与流路相交的阀杆2和作为基本构成部件的盘状阀体3，杆2为轴; 并且阀通过阀元件3的转动来打开和关闭阀壳1中的流路。阀还包括：在孔侧的部分的下游侧具有局部球壳形式的多孔板构件7 以将通过多孔板构件7的通孔8的流体朝向流路的中心拉直; 以及作为阀壳体1的喷嘴侧的一部分的凹球形部分10.当阀体3转动时，在预定开度或更小的范围内，作为喷嘴侧的部分的外周阀元件3在凹球面部分10上滑动或接近凹球面部分10，并且流体在喷嘴侧被堵塞或抑制。版权所有（C）2013，JPO＆INPIT

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