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1. 发明申请

US20080129583A1 Radar level detector 审中-公开
标题翻译：雷达液位探测器
公开(公告)号：US20080129583A1
公开(公告)日：2008-06-05
申请号：US11607291
申请日：2006-12-01
申请人： Lars Ove Larsson , Mats Nordlund , Fabian Wenger , Valter Nilsson
发明人： Lars Ove Larsson , Mats Nordlund , Fabian Wenger , Valter Nilsson
IPC分类号： G01S13/08
CPC分类号： G01F23/284 , G01F25/0061 , G01S7/288
摘要： A radar level detector for detecting that a surface of a product in a tank has entered a predefined distance range in an upper half of said tank, said level detector comprising a transmitter for transmitting an electromagnetic transmission signal into the tank, a propagation device for allowing said transmission signal to propagate towards said surface and for returning a reflection of said transmission signal from said surface, a selector for selecting a portion of said reflection, said portion defining said predefined distance range, a detector for setting a discrete signal to an active level if said portion includes information indicating a surface reflection, and an interface for communicating said discrete signal externally of said level detector.As it is not necessary to determine the filling level at every point in time, the signal processing of the detector according to the present invention can be significantly simplified, leading to a more cost efficient product and less power consumption.
摘要翻译：一种雷达液位检测器，用于检测罐中产品的表面已进入所述罐的上半部分中的预定距离范围，所述液位检测器包括用于将电磁传输信号传送到罐中的发射器，用于允许所述传输信号向所述表面传播并返回来自所述表面的所述传输信号的反射;选择器，用于选择所述反射的一部分，所述部分限定所述预定距离范围;检测器，用于将离散信号设置为有效电平如果所述部分包括指示表面反射的信息，以及用于在所述电平检测器外部传送所述离散信号的接口。由于不需要确定每个时间点的填充水平，因此可以显着简化根据本发明的检测器的信号处理，从而导致更具成本效益的产品和更少的功耗。

2. 发明授权

US07342531B2 Redundant level measurement in radar level gauging system 有权
标题翻译：雷达液位测量系统的冗余液位测量
公开(公告)号：US07342531B2
公开(公告)日：2008-03-11
申请号：US11358773
申请日：2006-02-21
申请人： Lennart Hagg , Lars Ove Larsson , Mikael Kleman , Per Holmberg
发明人： Lennart Hagg , Lars Ove Larsson , Mikael Kleman , Per Holmberg
IPC分类号： G01S13/08 , G01F23/00 , G01F23/14 , G01S13/00
CPC分类号： G01F23/284 , G01F23/18 , G01F25/0061 , G01S13/08
摘要： A method and system for determining a product level in a tank which determine a first level measure using emission of electromagnetic waves into the tank, detect a differential pressure, determine an observed density based on the detected differential pressure and the first level measure, and determine a second level measure based on the observed density and a currently measured differential pressure. The present invention is based on the realization that a level measurement based on differential pressure and an observed density can provide a valuable redundant level measurement, which can provide increased reliability and enable detection of errors.
摘要翻译：一种用于确定罐中的产品水平的方法和系统，所述方法和系统通过使用电磁波向罐中发射确定第一水平测量值，检测差压，基于检测到的差压和第一水平测量确定观测密度，并确定基于观察到的密度和当前测得的压差的第二级度量。本发明基于以下认识：基于差压和观察密度的电平测量可以提供有价值的冗余电平测量，其可以提供增加的可靠性并且能够检测错误。

3. 发明授权

US07308825B2 Tank gauging system 有权
标题翻译：油罐测量系统
公开(公告)号：US07308825B2
公开(公告)日：2007-12-18
申请号：US11251582
申请日：2005-10-14
申请人： Lennart Hägg , Lars Ove Larsson , Kenneth Adolfsson , Olov Edvardsson
发明人： Lennart Hägg , Lars Ove Larsson , Kenneth Adolfsson , Olov Edvardsson
IPC分类号： G01F23/00 , G01F23/284
CPC分类号： G01F23/284 , G01S13/34
摘要： A tank gauging system for sensing product parameters of a product contained in a tank is disclosed. The system comprises a microwave-based level gauging unit and a temperature gauging unit. A controller of the system includes an external interface adapted to enable communication between the tank gauging system and an external control system; processing circuitry configured for management of communication over the external interface; and a power supply, which is enclosed in an explosion-proof housing and configured to supply intrinsically safe power to the gauging units, wherein the power supply has an essentially rectangular output characteristic. Further, an intrinsically safe two-wire bus connecting the controller and the gauging units is provided, wherein the two-wire bus is usable both for transmitting measurement signals related to the sensed product parameters from the gauging units to the controller and for providing intrinsically safe power from the controller to the gauging units.
摘要翻译：公开了一种用于感测容器中包含的产品的产品参数的罐测量系统。该系统包括基于微波的电平计量单元和温度测量单元。该系统的控制器包括外部接口，其适于实现罐测量系统和外部控制系统之间的通信; 配置用于管理通过外部接口的通信的处理电路; 以及电源，其被封装在防爆壳体中并且被配置为向所述测量单元提供本质安全的电力，其中所述电源具有基本上矩形的输出特性。此外，提供了一种连接控制器和测量单元的本质安全的双线总线，其中双线总线可用于将与所测量的产品参数相关的测量信号从测量单元发送到控制器，并且用于提供本质安全从控制器到测量单元的功率。

4. 发明授权

US5571377A Process for peroxide bleaching of chemical pulp in a pressurized bleach vessel 失效
标题翻译：在加压漂白容器中过氧化物漂白化学纸浆的方法
公开(公告)号：US5571377A
公开(公告)日：1996-11-05
申请号：US244637
申请日：1994-06-07
申请人： Petter Tibbling , Ulla Ekstroom , Erik Nilsson , Lars-Ove Larsson
发明人： Petter Tibbling , Ulla Ekstroom , Erik Nilsson , Lars-Ove Larsson
IPC分类号： D21C9/00 , D21C9/10 , D21C9/147 , D21C9/16 , D21C9/153
CPC分类号： D21C9/163 , D21C9/10 , D21C9/1005 , D21C9/1026
摘要： A process for chlorine-free bleaching of chemical pulp in association with the production thereof, where a suspension of the pulp preferably has a concentration exceeding 8% of cellulose-containing fiber material and where the pulp entering into a bleaching line is preferably fed continuously through at least one bleaching vessel in the bleaching line, is treated with at least one acid for adjusting the pH to a value below 7, and with a chelating agent, and is subsequently bleached in at least one stage to a brightness exceeding 75% ISO, preferably exceeding 80%, with hydrogen peroxide or the corresponding quantity of another peroxide, employed in a quantity exceeding 5 kg/BDMT, where the peroxide bleaching takes place at elevated temperature and at a pressure in the bleaching vessel which exceeds 2 bar and where the cross-sectional area of the bleaching vessel exceeds 3 m.sup.2 and the area of the metal surface exposed towards the interior of the bleaching vessel is less than 4 V m.sup.2, where V indicates the volume in m.sup.3.
摘要翻译： PCT No.PCT / SE93 / 00988 Sec。 371日期：1994年6月7日 102（e）日期1994年6月7日PCT 1993年11月18日PCT公布。 No.W094 / 29511 PCT出版物日期1994年12月22日一种与其生产相关的无氯漂白化学纸浆的方法，其中浆料的悬浮液优选具有超过8％的含纤维素纤维材料的浓度，并且其中纸浆进入漂白线优选通过漂白线中的至少一个漂白容器连续进料，用至少一种酸调节pH至低于7的值，并用螯合剂处理，随后在至少一个阶段中漂白至亮度超过75％的ISO，优选超过80％，过氧化氢或相应量的另一种过氧化物，其用量超过5kg / BDMT，其中过氧化物漂白在漂白容器中的高温和高压下进行，超过 2巴，漂白容器的横截面积超过3平方米，并且暴露于漂白容器内部的金属表面的面积较小超过4 V m2，其中V表示体积（m3）。

5. 发明授权

US06325891B1 Method of bleaching pulp without using chlorine chemicals in a (QP)Z bleaching sequence 失效
标题翻译：在（QP）Z漂白顺序中不使用氯化学品漂白纸浆的方法
公开(公告)号：US06325891B1
公开(公告)日：2001-12-04
申请号：US08553324
申请日：1995-11-20
申请人： Anders Bergqvist , Lars Ove Larsson , Erik Nilsson , Petter Tibbling
发明人： Anders Bergqvist , Lars Ove Larsson , Erik Nilsson , Petter Tibbling
IPC分类号： D21C9153
摘要： Provided is a method of treating chemical paper pulp having the steps of: adjusting the pH of the pulp to be between 1 and 6; treating the pulp with ozone to reduce the kappa number of the pulp; treating the pulp with a chelating agent after the ozone treating step without any intervening washing step between the ozone treating step and the chelating agent treating step; adjusting the pH of the pulp by adding alkali together with or after the addition of chelating agent to a pH exceeding 3; washing the pulp; and bleaching the pulp with peroxide.
摘要翻译：提供了一种处理化学纸浆的方法，其具有以下步骤：将纸浆的pH调节至1至6;用臭氧处理纸浆以降低纸浆的卡伯值;处理纸浆后的螯合剂臭氧处理步骤，在臭氧处理步骤和螯合剂处理步骤之间没有任何中间的洗涤步骤;通过在加入螯合剂或加入螯合剂之后加入碱调节浆液的pH至pH超过3;洗涤纸浆; 并用过氧化物漂白纸浆。

6. 发明授权

US6149766A Process for peroxide bleaching of chemical pulp in a pressurized bleaching vessel 失效
标题翻译：在加压漂白容器中过氧化物漂白化学纸浆的方法
公开(公告)号：US6149766A
公开(公告)日：2000-11-21
申请号：US740832
申请日：1996-11-04
申请人： Petter Tibbling , Ulla Ekstrom , Erik Nilsson , Lars-Ove Larsson
发明人： Petter Tibbling , Ulla Ekstrom , Erik Nilsson , Lars-Ove Larsson
IPC分类号： D21C9/10 , D21C9/16 , D21C9/153
CPC分类号： D21C9/1026 , D21C9/1005 , D21C9/163
摘要： A process for chlorine-free bleaching of chemical pulp in association with the production thereof, where a suspension of the pulp preferably has a concentration exceeding 8% of cellulose-containing fiber material and where the pulp entering into a bleaching line is preferably fed continuously through at least one bleaching vessel in the bleaching line, is treated with at least one acid for adjusting the pH to a value below 7, and with a chelating agent, and is subsequently bleached in at least one stage to a brightness exceeding 75% ISO, preferably exceeding 80%, with hydrogen peroxide or the corresponding quantity of another peroxide, employed in a quantity exceeding 5 kg/BDMT, where the peroxide bleaching takes place at elevated temperature and at a pressure in the bleaching vessel which exceeds 2 bar and where the cross-sectional area of the bleaching vessel exceeds 3 m.sup.2 and the area of the metal surface exposed towards the interior of the bleaching vessel is less than 4V m.sup.2, where V indicates the volume in m.sup.3.
摘要翻译：一种与其生产相关的无氯漂白化学纸浆的方法，其中纸浆的悬浮液优选具有超过8％的含纤维素纤维材料的浓度，并且其中进入漂白线的纸浆优选连续地通过漂白线中的至少一个漂白容器用至少一种酸调节至低于7的值，并用螯合剂处理，随后在至少一个阶段漂白至超过75％ISO的亮度，优选超过80％，过氧化氢或相应量的另一种过氧化物，其用量超过5kg / BDMT，其中过氧化物漂白在漂白容器中的升高的温度和压力下发生超过2巴，并且其中漂白容器的横截面积超过3m 2，暴露于漂白容器内部的金属表面面积小于4Vm2，其中 V表示体积（m3）。

7. 发明专利

SE464465B 未知
公开(公告)号：SE464465B
公开(公告)日：1991-04-29
申请号：SE8602859
申请日：1986-06-27
申请人： OERJAN AXELSSON , LARS OVE LARSSON
发明人： AXELSSON OERJAN , LARSSON LARS OVE
IPC分类号： B22D11/20 , G01B5/14 , G01B21/20

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