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    • 31. 发明授权
    • Method and apparatus for detection of orifice clogging in pressure-type flow rate controllers
    • 用于检测压力型流量控制器孔堵塞的方法和装置
    • US06302130B1
    • 2001-10-16
    • US09529985
    • 2000-07-18
    • Tadahiro OhmiSeiichi IidaSatoshi KagatsumeJun HiroseKouji NishinoNobukazu IkedaMichio YamajiRyousuke DohiKazuhiro YoshikawaMutsunori KoyomogiTomio UnoEiji IdetaTakashi Hirose
    • Tadahiro OhmiSeiichi IidaSatoshi KagatsumeJun HiroseKouji NishinoNobukazu IkedaMichio YamajiRyousuke DohiKazuhiro YoshikawaMutsunori KoyomogiTomio UnoEiji IdetaTakashi Hirose
    • F17D116
    • G05D7/0635Y10T137/0396Y10T137/7759Y10T137/7761Y10T137/8326
    • A method and apparatus for detection of clogging of an orifice by measuring the upstream side pressure without breaking up the piping system in a flow rate control unit using an orifice, so as to extend the life of the flow rate control unit and enhance its safety. The apparatus of detecting clogging of an orifice in a pressure-type flow rate controller has a control valve (CV), an orifice (2), a pressure detector (14) for measuring the upstream pressure P1 therebetween, and a flow rate setting circuit (32) wherein, with the upstream pressure P1 maintained about two or more times higher than the downstream pressure P2, the downstream flow rate QC is calculated with the equation QC=KP1 (K=constant) and wherein the control valve (CV) is controlled by the difference signal QY between the calculated flow rate QC and the set flow rate QS. The apparatus comprises: a storage memory M memorizing standard pressure attenuation data Y(t) of the upstream pressure P1 measured with the flow rate switched from the high set flow rate QSH to the low set flow rate QSL with the orifice (2) not clogged, a pressure detector (14) for determination of the pressure attenuation data P(t) of the upstream pressure P1 with the flow rate switched from the high set flow rate QSH to the low set flow rate QSL with the orifice (2) in the actual conditions, a central processing unit CPU for checking the pressure attenuation data P(t) against standard pressure attenuation data Y(t), and an alarm circuit (46) that turns on a clogging alarm when the pressure attenuation data P(t) deviates from standard pressure attenuation data Y(t) to a specific degree or beyond that.
    • 一种用于通过测量上游侧压力而不破坏使用孔口的流量控制单元中的管道系统来检测孔口堵塞的方法和装置,以延长流量控制单元的寿命并提高其安全性。 检测压力型流量控制器中的孔口堵塞的装置具有控制阀(CV),用于测量其上游压力P1的孔口(2),压力检测器(14)和流量设定电路 (32)其中,在上游压力P1保持大于下游压力P2的两倍或更多倍的情况下,下游流量QC用等式QC = KP1(K =常数)计算,并且其中控制阀(CV)为 由计算流量QC和设定流量QS之间的差分信号QY控制。 该装置包括:存储存储器M,存储以从高设定流量QSH切换到低设定流量QSL的流量测量的上游压力P1的标准压力衰减数据Y(t),其中孔口(2)没有堵塞 ,用于确定上游压力P1的压力衰减数据P(t)的压力检测器(14),其中流量从高设定流量QSH切换到具有孔口(2)的低设定流量QSL 实际情况是用于根据标准压力衰减数据Y(t)检测压力衰减数据P(t)的中央处理单元CPU以及当压力衰减数据P(t)偏离时引起堵塞报警的报​​警电路(46) 从标准压力衰减数据Y(t)到特定程度或以上。
    • 32. 发明授权
    • Gas supply system equipped with pressure-type flow rate control unit
    • 供气系统配有压力式流量控制单元
    • US06289923B1
    • 2001-09-18
    • US09463514
    • 2000-06-02
    • Tadahiro OhmiSatoshi KagatsumeNobukazu IkedaKouji NishinoKazuhiro YoshikawaEiji IdetaRyousuke DohiTomio UnoMichio Yamaji
    • Tadahiro OhmiSatoshi KagatsumeNobukazu IkedaKouji NishinoKazuhiro YoshikawaEiji IdetaRyousuke DohiTomio UnoMichio Yamaji
    • G05D706
    • G05D7/0635Y10T137/7759Y10T137/7761
    • An improved and reduced-size and low-cost gas supply system equipped with a pressure-type flow rate control unit, to be used, for instance, in semiconductor manufacturing facilities is disclosed. Transient flow rate characteristics are improved to prevent the gas from overshooting when the gas supply is started, and to raise the flow rate control accuracy and reliability of facilities. That eliminates non-uniformity of products or semiconductors and raises the production efficiency. The gas supply system equipped with a pressure-type flow rate control unit is so configured that with the pressure on the upstream side of the orifice held about twice or more higher than the downstream side pressure, the gas flow rate is controlled to supply the gas to a gas-using process through an orifice-accompanying valve, the gas supply system comprising a control valve to receive gas from the gas supply source, an orifice-accompanying valve provided on the downstream side of the control valve, a pressure detector provided between the control valve and the orifice-accompanying valve, an orifice provided on the downstream side of the valve mechanism of the orifice-accompanying valve and a calculation control unit where on the basis of the pressure P1 detected by the pressure detector, the flow rate Qc is calculated with an equation Qc=KP1 (K: constant) and the difference between the flow-rate specifying signal Qs and the calculated flow rate Qc is then input as control signal Qy in the drive for the control valve, thereby regulating the opening of the control valve for adjusting the pressure P1 so that the flow rate of the gas to supply can be controlled.
    • 公开了一种改进的,尺寸较小的低成本的气体供应系统,其配备有例如半导体制造设备中使用的压力式流量控制单元。 提高瞬态流量特性,防止气体开始时气体过冲,提高设备的流量控制精度和可靠性。 这消除了产品或半导体的不均匀性并提高了生产效率。 配置有压力式流量控制单元的气体供给系统被配置为使得在孔口的上游侧的压力保持为比下游侧压力高大约两倍或更多的气体,气体流量被控制以供应气体 通过孔口相关阀进行气体使用过程,所述气体供应系统包括用于接收来自气体供应源的气体的控制阀,设置在控制阀的下游侧的孔附件阀,设置在控制阀之间的压力检测器 所述控制阀和所述节流孔相关阀,设置在所述节流阀相关阀的阀机构的下游侧的孔口和计算控制单元,其中,基于由所述压力检测器检测到的压力P1,流量Qc 用公式Qc = KP1(K:常数)计算,然后输入流量指定信号Qs和计算流量Qc之间的差作为控制信号Qy i n是用于控制阀的驱动器,由此调节用于调节压力P1的控制阀的打开,从而可以控制供给气体的流量。
    • 36. 发明授权
    • Mixed gas supply device
    • 混合供气装置
    • US09233347B2
    • 2016-01-12
    • US13520824
    • 2010-10-22
    • Masaaki NagaseRyousuke DohiKouji NishinoNobukazu Ikeda
    • Masaaki NagaseRyousuke DohiKouji NishinoNobukazu Ikeda
    • F16K11/20B01J4/02G05D11/13H01L21/67
    • B01J4/02G05D11/132H01L21/67017Y10T137/87249
    • A mixed gas supply device includes a plurality of gas supply lines arranged in parallel that include flow rate control devices and outlet side switching valves, wherein gas outlets of respective outlet side switching valves communicate with a manifold, and another gas supply line at a position close to a mixed gas outlet of the manifold supplies a low flow rate gas, wherein an outlet side of the flow rate control device and an inlet side of the outlet side switching valve are hermetically connected via an outlet side connecting fitting of the flow rate control device and a mounting table having a gas passage, wherein a small hole portion is provided at a part of a flow passage at the outlet side connecting fitting and/or a flow passage, which makes the outlet side switching valve and a mixed gas flow passage in the manifold communicate with one another.
    • 混合气体供给装置包括并列布置的多个气体供给管线,包括流量控制装置和出口侧切换阀,其中各个出口侧切换阀的气体出口与歧管连通,另一个气体供给管线位于关闭位置 到歧管的混合气体出口供给低流量气体,其中流量控制装置的出口侧和出口侧切换阀的入口侧经由流量控制装置的出口侧连接配件气密地连接 以及具有气体通道的安装台,其中在出口侧连接配件和/或流路的流路的一部分处设置有小孔部,其使出口侧切换阀和混合气体流路成为 歧管彼此通信。
    • 40. 发明申请
    • REGULATING VALVE DEVICE
    • 调节阀装置
    • US20120074339A1
    • 2012-03-29
    • US13138670
    • 2010-03-08
    • Nobukazu IkedaMichio YamajiTsuyoshi TanigawaHiroshi KanekoYasushi YagiYuji OnoTadahiro OhmiYasuyuki Shirai
    • Nobukazu IkedaMichio YamajiTsuyoshi TanigawaHiroshi KanekoYasushi YagiYuji OnoTadahiro OhmiYasuyuki Shirai
    • F16K31/12
    • F16K31/126F16K31/1268F16K41/10
    • [Problem] To provide a regulating valve device having a valve element opened or closed by a working fluid.[Solution to Problem] A valve element 310 has a structure in which a valve head 310a and a valve body 310b are coupled by a valve stem 310c. In the valve box 305, the valve element 310 and a power transmitting member 320a are slidably housed. A first bellows 320b is fixed to the power transmitting member 320a and the valve box 305 to form a first space Us at a position on a side of the power transmitting member 320a opposite the valve element. A second bellows 320c is fixed to the power transmitting member 320a and the valve box 305 to form a second space Ls at a position on a side of the power transmitting member 320a closer to the valve element. According to a ratio of air supplied to the first space Us from a first pipe 320d and air supplied to the second space Ls from a second pipe 320e, the power transmitting member 320a transmits power to the valve head 310a to open or close a transport channel 200a.
    • [问题]提供一种具有由工作流体打开或关闭的阀元件的调节阀装置。 问题的解决方案阀元件310具有阀头310a和阀体310b通过阀杆310c联接的结构。 在阀箱305中,阀元件310和动力传递部件320a可滑动地容纳。 第一波纹管320b固定到动力传递部件320a和阀箱305,以在与阀元件相对的动力传递部件320a的一侧的位置处形成第一空间Us。 第二波纹管320c固定在动力传递部件320a和阀箱305上,在动力传递部件320a的靠近阀体的一侧的位置形成第二空间Ls。 根据从第一管320d向第一空间Us供给的空气的比例和从第二管320e供给到第二空间Ls的空气的比例,动力传递构件320a向阀头310a传递动力以打开或关闭运送通道 200a。