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1. 发明申请

US20210208100A1 Wear resistant streaming current measurement flow cell with piston centering 有权
公开(公告)号：US20210208100A1
公开(公告)日：2021-07-08
申请号：US16602954
申请日：2020-01-02
申请人： Charles R. Veal
发明人： Charles R. Veal
IPC分类号： G01N27/60 , G01N33/18
摘要： A streaming current measurement flow cell, free from potential piston-to-electrode contact, with a flexible, but close-fitting piston and sleeve set, wherein a housing-defined bushing, as it encircles the piston's active segment near its upper end, does so with a short, cylindrical sidewall, the inside diameter of which, in comparison to the active segment's diameter, creates a narrower—but by only 0.002 inch—capillary-sized flow channel between the bushing and the active segment than exists between it and the sleeve. Even so, physical contact between piston and sleeve—a major wear factor—is completely eliminated; and larger particles known to scratch/gouge dielectric surfaces are kept out of the piston/sleeve flow channel. Moreover, a limitation on the piston's downward travel wherein the active segment's upper end is brought just flush with the upper electrode's flat, annular face makes possible a novel system, critical in self-cleaning this electrode where its inner edge and setback are exposed atop the bushing.

2. 发明授权

US5119029A Easily cleaned streaming current monitor 失效
标题翻译：轻松清洗流式电流监视器
公开(公告)号：US5119029A
公开(公告)日：1992-06-02
申请号：US664305
申请日：1991-03-04
申请人： Robert L. Bryant , Charles R. Veal
发明人： Robert L. Bryant , Charles R. Veal
IPC分类号： G01N27/60 , G01N33/18
CPC分类号： G01N33/18 , G01N27/60
摘要： A streaming current detector having a probe with an electrode holder which can be removed and replaced within only about one minute, allowing the probe to be kept on line nearly continuously even in highly contaminated wastewater. The probe also includes a reciprocating piston and a housing with both a cylindrical void and a transverse passageway. In assembled relation, the electrode holder is slidably disposed within the cylindrical void; and the piston is slidably engaged with an inner wall of the electrode holder. Capillary-sized channels formed between this inner wall and the piston communicate fluidly with the transverse passageway. From it, any test flow stream present is partially sucked into the capillary-sized channels during an upstroke of the piston and then expelled from them, back into the transverse passageway, during the succeeding downstroke. Lacking any low velocity or stagnate areas in the transverse passageway or in the capillary-sized channels, solids cannot accumulate in the probe, making it almost self-cleaning. But, in severely contaminated waters, the electrodes in the probe still tend to foul. With the detector, electrode replacement is readily accomplished: a retaining fitting is removed, the electrode holder is slid out of the flow member, a clean electrode holder is slid into position, and the retaining fitting is replaced.
摘要翻译：流式电流检测器具有带有电极夹持器的探头，该探头可在仅约一分钟内被移除和更换，从而允许探针即使在高度污染的废水中几乎连续地保持在线上。探头还包括往复活塞和具有圆柱形空隙和横向通道两者的壳体。在组装关系中，电极保持器可滑动地设置在圆柱形空隙内; 并且活塞与电极保持器的内壁可滑动地接合。形成在该内壁和活塞之间的毛细管尺寸的通道与横向通道流体连通。由此，在后续的下行程期间，存在的任何测试流动流在活塞上行期间部分地吸入毛细管尺寸的通道中，然后从它们排出回到横向通道中。在横向通道或毛细管尺寸的通道中没有任何低速度或停滞的区域，固体不能积聚在探头中，使其几乎自清洁。但是，在严重污染的水域中，探头中的电极仍然会发生污染。使用检测器，可以很容易地实现电极更换：取下保持配件，将电极夹持器从流动构件滑出，清洁的电极座滑入就位，更换保持配件。

3. 发明授权

US5578995A Method of monitoring and controlling condensate quality 失效
标题翻译：监测和控制冷凝水质量的方法
公开(公告)号：US5578995A
公开(公告)日：1996-11-26
申请号：US187397
申请日：1994-01-25
申请人： Robert L. Bryant , Charles R. Veal
发明人： Robert L. Bryant , Charles R. Veal
IPC分类号： G01N15/02 , G01N15/06 , G01N21/53 , G08B21/00
CPC分类号： G01N15/065 , G01N21/534 , G01N2015/0222
摘要： An improved method of monitoring condensate quality in a condensate return system and of controlling the level of particulate matter in the condensate flow so that when this level exceeds an acceptable limit, valves for discharging the condensate flow from the system open automatically or, alternately, an alarm is sounded. Utilization of the method facilitates the conservation of hot steam condensate for reuse in a boiler while preventing water contaminated with particulate matter from returning to the boiler, thereby protecting it from certain types of deposits and corrosion. The improved method includes measuring, on a continuous basis, relative numbers of particulate-type impurities under conditions in which rust or other particles large enough to block flow into a particle counter can be produced in sudden surges. Tests show that a suitable instrument for measuring the impurities under such conditions is a particle monitor. In the improved method, the only restriction on the size of the particles to be monitored is that the particles be small enough to pass through vinyl tubing having an inner diameter of about 3 millimeters.
摘要翻译：一种改进的冷凝水返回系统中冷凝水质量监测方法，并控制冷凝水流中的颗粒物质的含量，使得当该浓度超过可接受的限度时，用于将冷凝物流从系统排出的阀自动打开，或者替代地，闹钟响起该方法的利用有利于热蒸汽冷凝物的保存，以便在锅炉中重新使用，同时防止被颗粒物质污染的水返回到锅炉，从而保护其免受某些类型的沉积物和腐蚀。改进的方法包括在突然的浪涌中可以产生在足以阻止流入颗粒计数器中的生锈或其它颗粒的条件下，连续地测量颗粒状杂质的相对数量。测试表明，在这种条件下测量杂质的合适仪器是颗粒监测器。在改进的方法中，对待监测的颗粒的尺寸的唯一限制是颗粒足够小以通过内径为约3毫米的乙烯基管。

4. 发明授权

US06515481B2 Streaming current detector with easily removable matched sleeve and piston set 失效
公开(公告)号：US06515481B2
公开(公告)日：2003-02-04
申请号：US09788762
申请日：2001-02-21
申请人： Charles R. Veal, Jr.
发明人： Charles R. Veal, Jr.
IPC分类号： G01N2760
CPC分类号： G01N27/60
摘要： A streaming current detector having a probe in which dielectric elements used to generate the streaming current—specifically, a sleeve for slideably receiving a reciprocating piston and the piston itself—can be replaced independently of the electrodes. Paired electrodes, each positioned proximate with one of the distal ends of the sleeve, are mounted on immobile structures other than the sleeve. The latter include a housing which forms a sheath for the sleeve and a retaining fitting. Threadedly engaged with the housing, this fitting also holds the sleeve in place. Generally, removal and replacement of each probe element can be accomplished in the field in under one minute. Costs of the dielectric elements are only a small fraction of those in the prior art, allowing a consumer to replace them much more frequently, as well as to substitute matched dielectric elements designed for their chemical and/or physical compatibility with a particular test fluid.

5. 发明授权

US11313832B2 Wear resistant streaming current measurement flow cell with piston centering 有权
公开(公告)号：US11313832B2
公开(公告)日：2022-04-26
申请号：US16602954
申请日：2020-01-02
申请人： Charles R. Veal
发明人： Charles R. Veal
IPC分类号： G01N27/60 , G01N33/18
摘要： A streaming current measurement flow cell, free from potential piston-to-electrode contact, with a flexible, but close-fitting piston and sleeve set, wherein a housing-defined bushing, as it encircles the piston's active segment near its upper end, does so with a short, cylindrical sidewall, the inside diameter of which, in comparison to the active segment's diameter, creates a narrower—but by only 0.002 inch—capillary-sized flow channel between the bushing and the active segment than exists between it and the sleeve. Even so, physical contact between piston and sleeve—a major wear factor—is completely eliminated; and larger particles known to scratch/gouge dielectric surfaces are kept out of the piston/sleeve flow channel. Moreover, a limitation on the piston's downward travel wherein the active segment's upper end is brought just flush with the upper electrode's flat, annular face makes possible a novel system, critical in self-cleaning this electrode where its inner edge and setback are exposed atop the bushing.

6. 发明授权

US5798699A Method for monitoring and selectively sampling a fluid flow stream 失效
标题翻译：监测和选择性取样流体流动的方法
公开(公告)号：US5798699A
公开(公告)日：1998-08-25
申请号：US779051
申请日：1997-01-06
申请人： Robert L. Bryant , Charles R. Veal
发明人： Robert L. Bryant , Charles R. Veal
IPC分类号： G01N21/53 , G08B21/00
CPC分类号： G01N21/534
摘要： An improved method and apparatus for monitoring, in real time, the quality of a flowing fluid stream and of automatically taking samples therefrom when the level of particulate matter in the flow stream exceeds an acceptable limit for a predetermined period of time. The apparatus includes a particle monitor and at least one three-way valve electronically linked via a programmable logic controller to the particle monitor. Not only is the latter an instrument for continuously measuring, on-line, numbers known as particle indices which are indicative of particulate matter concentrations in the flow stream, but also the particle monitor generates electronic signals. Both these signals and the particle index are proportional to fluctuations in the intensity of a light beam traversed by particles which are present in a portion of the flow stream during a fixed interval of time. Importantly, the particle monitor can detect relatively short-lived "spikes" in the level of 0.50 micron or larger particles which may be present in the flow stream. Utilizing this sensitivity of the particle monitor to such "spikes", the apparatus can be set to automatically take samples when excursions in the levels of particulate matter occur rather than at random intervals. As a result, the method can facilitate the diagnosis of an impending process equipment breakdown/malfunction in its early stages, while its observable effect is only an infrequent "spike".
摘要翻译：一种改进的方法和装置，用于当流动流中的颗粒物质的水平超过预定时间段的可接受极限时实时监测流动流体流的质量并自动从其中采集样品。该装置包括粒子监测器和经由可编程逻辑控制器与粒子监测器电连接的至少一个三通阀。不仅后者是连续测量，在线数字的仪器，称为粒子指数，表示流动中的颗粒物质浓度，而且粒子监测器也产生电子信号。这两个信号和粒子指数都是在固定的时间间隔期间存在于流动流的一部分中的颗粒穿过的光束的强度的波动成比例的。重要的是，颗粒监测器可以检测到可能存在于流动流中的0.50微米或更大颗粒水平的相对短暂的“尖峰”。利用粒子监测器对这种“尖峰”的敏感度，当颗粒物质的水平发生而不是以随机间隔发生偏移时，该装置可被设定为自动采样。因此，该方法可以便于在早期阶段对即将到来的设备故障/故障的诊断，而其可观察到的效果只是不频繁的“尖峰”。

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