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公开(公告)号：US4687495A
公开(公告)日：1987-08-18
申请号：US915388
申请日：1986-10-06
申请人： James P. Maddox
发明人： James P. Maddox
IPC分类号： B01D19/00
CPC分类号： B01D19/0047
摘要： A system for pressure letdown and flow control of high-pressure erosive fluid streams containing gas, liquid and solid particles, such as process slurries used in coal gasification and liquefaction. Throttle valves presently used for this application suffer excessive impingement erosion and corrosion damage, leading to short valve lifetime even with super-resistant valve materials. The present invention uses pairs of fixed-geometry opposing nozzles whose jets meet head-on with consequent energy dissipation and stream containment at the reduced pressure. The only erosion encountered here is scouring of internal nozzle surfaces which is minor and permits long lifetimes to be attained with conventional materials. This system provides flow control by (1) varying the number of nozzle pairs which are on-line by use of on-off shutoff valves for stepwise flow increments, and (2) low-pressure-drop operation of a conventional throttle valve in the main line for proportional control within one step increment. Different nozzle designs accommodate supercritical, subcritical and gasless hydraulic flow.
摘要翻译： 用于气体，液体和固体颗粒的高压侵蚀流体流的压力降低和流量控制系统，例如用于煤气化和液化的工艺浆料。 目前用于此应用的节流阀遭受过度的冲击腐蚀和腐蚀损坏，即使使用超级耐用阀门材料也能节省阀门寿命。 本发明使用成对的固定几何形状相对的喷嘴，其喷嘴在正面接合，从而减少了能量消耗和流体的流动。 这里遇到的唯一的侵蚀是内部喷嘴表面的冲刷，这是很小的并且可以用常规材料实现长寿命。 该系统通过以下方式提供流量控制：（1）通过使用开关截止阀来逐步流量增量来改变在线的喷嘴对的数量，以及（2）常规节流阀的低压降操作 一步增量的比例控制主线。 不同的喷嘴设计适应超临界，亚临界和无气体液压流。
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公开(公告)号：US4511309A
公开(公告)日：1985-04-16
申请号：US457005
申请日：1983-01-10
申请人： James P. Maddox
发明人： James P. Maddox
CPC分类号： F01K21/005 , F01D5/10 , G01M1/365 , F05D2210/13
摘要： An asymmetric rotating rotor prevents or inhibits formation of waves in a liquid ring or rings.
摘要翻译： 不对称旋转转子防止或阻止液体环或环中的波形成。
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公开(公告)号：US4502839A
公开(公告)日：1985-03-05
申请号：US438477
申请日：1982-11-02
CPC分类号： B04B9/14 , F01D1/02 , F01K21/005 , F16F15/162 , F05D2210/13
摘要： A matrix in a rotating rotor prevents or inhibits formation of waves in a liquid ring. The matrix may be located in first and/or second channel sections defined by the rotor, liquid passing from the first to the second channel section; and a turbine may have a scoop removing liquid from the second section, proximate ends of barriers defined by the matrix.The matrix includes grooves between the barriers to communicate liquid generally parallel to an axis defined by the rotor. The grooves have end openings and may be closed in a direction toward that axis.
摘要翻译： 旋转转子中的矩阵防止或抑制液体环中的波浪形成。 矩阵可以位于由转子限定的第一和/或第二通道部分中，液体从第一通道部分通过第二通道部分; 并且涡轮可以具有来自第二部分的铲除液体，其由矩阵限定的障碍物的近端。 该矩阵包括在大致平行于由转子限定的轴线之间传送液体的障碍物之间的凹槽。 凹槽具有端部开口并且可以在朝向该轴线的方向上封闭。
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公开(公告)号：US5735469A
公开(公告)日：1998-04-07
申请号：US653851
申请日：1996-05-28
IPC分类号： H01S3/0953 , B05B7/00
CPC分类号： H01S3/0953
摘要： A compact diffuser for recovering pressure from a supersonic flow with boundary layers. Sharp splicer plates near the wails form boundary layer scoops and separate the flow into an inner coreflow chapel and outer chambers containing small supersonic ejector nobles. The coreflow without boundary layers undergoes a single near-normal shock to recover pressure. The boundary layers are pumped to the recovery pressure in the outer ejector chambers. The subsonic part of the boundary layer flow to the outer chambers can be choked against boundary layer scoop inlet corners to isolate the upstream flow. The leading edge angle of the splicers may be selected to help induce coreflow shocking.
摘要翻译： 用于从具有边界层的超音速流回收压力的紧凑型扩散器。 靠近窗户的尖锐的拼接板形成边界层勺，并将流分离成内芯流道教堂和包含小超音速弹射器贵族的外室。 没有边界层的芯流经历单次接近正常的冲击以恢复压力。 边界层被泵送到外部喷射器室中的恢复压力。 流到外室的边界层的亚音速部分可以被阻塞在边界层勺入口拐角上以隔离上游流。 可以选择捻接器的前缘角以帮助引起芯流冲击。
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