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公开(公告)号：US5920951A
公开(公告)日：1999-07-13
申请号：US832309
申请日：1997-04-03
CPC分类号： F28G1/16 , F23J3/00 , F28G15/00 , G05B2219/37538 , G05B2219/37625 , G05B2219/37632
摘要： A PLC based parameter sensing sootblower having a retractable lance tube that is extended and retracted by a drive motor. A PLC sensing circuit is used to sense when the lance tube is fully extended and/or fully retracted. The PLC sensing circuit can be configured to sense drive motor current, power, torque or other drive motor characteristics to determine when the lance tube has come to a hard stop upon extension. The PLC sensing circuit then calculates an approximate time window in which the lance should be fully retracted. The parameter sensor is configured to sense the drive motor current, power, torque or other characteristic only during the time window to determine when the lance tube is fully retracted while ignoring any motor load variations outside of the designated time window.
摘要翻译： 一种基于PLC的参数感测吹灰器，其具有由驱动马达延伸和缩回的可伸缩喷枪管。 PLC检测电路用于检测喷枪管何时完全伸出和/或完全缩回。 PLC检测电路可以配置为检测驱动电机电流，功率，转矩或其他驱动电机特性，以确定喷枪管何时在延伸时已经硬停止。 然后，PLC感应电路计算一个近似时间窗口，其中喷枪应完全缩回。 参数传感器被配置为仅在时间窗口期间感测驱动电机电流，功率，扭矩或其他特性，以确定喷枪管何时完全缩回，同时忽略指定时间窗外的任何电机负载变化。
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公开(公告)号：US08176883B2
公开(公告)日：2012-05-15
申请号：US12393441
申请日：2009-02-26
IPC分类号： F22B37/48
摘要： A sootblower is provided having a multidirectional cleaning range for directing a cleaning medium against heated surfaces in a heat exchanger. The sootblower includes a rotatable lance tube that is selectively advanced and withdrawn along a longitudinal axis from an interior volume of the heat exchanger. The lance tube includes an articulating wrist coupled to a nozzle for projecting the cleaning medium in multi-directions onto the heated surfaces when the lance tube is advanced into the heat exchanger. The nozzle is pivotable about the longitudinal axis and about a second axis transverse to the longitudinal axis.
摘要翻译： 提供了一种吹灰器，其具有用于将清洁介质引导到热交换器中的加热表面的多向清洁范围。 吹灰器包括可旋转喷枪管，其可选择地沿着纵向轴线前进并从热交换器的内部容积排出。 喷枪管包括联接到喷嘴的铰接手腕，用于当喷枪管进入热交换器时，多个方向将清洁介质突出到加热的表面上。 喷嘴可围绕纵向轴线和横向于纵向轴线的第二轴线枢转。
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公开(公告)号：US06655397B2
公开(公告)日：2003-12-02
申请号：US10036173
申请日：2001-12-26
IPC分类号： B08B302
CPC分类号： B08B9/093
摘要： An articulating water monitor-cleaning device for cleaning internal surfaces of large-scale combustion devices. The device is mounted to the exterior of a wall of a combustion device and positions a water spray lance to direct a stream of water against internal surfaces over a range of position. Pairs of orthogonally oriented four-bar linkage assemblies are provided, each having rotary actuators. The relative position between a pair of joints affixed to the lance tube allows the position of the lance to be set over a range of positions.
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公开(公告)号：US20100212608A1
公开(公告)日：2010-08-26
申请号：US12393441
申请日：2009-02-26
IPC分类号： F28G3/16
摘要： A sootblower is provided having a multidirectional cleaning range for directing a cleaning medium against heated surfaces in a heat exchanger. The sootblower includes a rotatable lance tube that is selectively advanced and withdrawn along a longitudinal axis from an interior volume of the heat exchanger. The lance tube includes an articulating wrist coupled to a nozzle for projecting the cleaning medium in multi-directions onto the heated surfaces when the lance tube is advanced into the heat exchanger. The nozzle is pivotable about the longitudinal axis and about a second axis transverse to the longitudinal axis.
摘要翻译： 提供了一种吹灰器，其具有用于将清洁介质引导到热交换器中的加热表面的多向清洁范围。 吹灰器包括可旋转喷枪管，其可选择地沿着纵向轴线前进并从热交换器的内部容积排出。 喷枪管包括联接到喷嘴的铰接手腕，用于当喷枪管进入热交换器时，多个方向将清洁介质突出到加热的表面上。 喷嘴可围绕纵向轴线和横向于纵向轴线的第二轴线枢转。
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