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    • 3. 发明公开
    • IMPROVED METHOD AND DEVICE TO DETECT THE FLAME IN A BURNER OPERATING ON A SOLID, LIQUID OR GASEOUS COMBUSTIBLE
    • 用于确定火焰IN A与固体,液体或气体燃料燃烧器OPERATED改善(​​S)的方法和装置
    • EP2265867A1
    • 2010-12-29
    • EP08763768.2
    • 2008-03-07
    • Bertelli & Partners S.R.L.
    • BERTELLI, Pierluigi
    • F23N5/12
    • F23N5/123F23N5/126F23N5/242F23N2029/08F23N2029/12
    • A method for flame sensing in a solid, liquid or gaseous fuel burner, the flame generated at an ionization electrode, the flame presence resulting in an ionizing effect on the electrode. The electrode is powered by an alternating voltage signal. The ionization phenomenon generates in the electrode a direct current. The current being sensed by a suitable sensing circuit including a control unit. This signal generator being of relatively low internal impedance to enable the measured generated current to have a high value compared with that normally used and of waveform to tend to limit the value of the direct current flowing through the electrode. The sensing and control circuit being such as to enable the presence of a parasitic current on the flame sensing electrode to be measured. A device for implementing the method is also disclosed.
    • 一种用于在固体,液体或气体燃料燃烧器的火焰感测方法中,在在离子化电极,所述火焰在存在于电极上电离效应引起产生的火焰。 所述电极是通过在交流电压信号供电。 电离现象基因利率在电极直流。 当前正由一个合适的感测电路,其包括控制单元,感测。 该信号发生器是相对低内阻抗的,以使测量产生的电流具有较高的值与没有正常使用和波形的倾向于限制流经电极的直流电流的值进行比较。 被检查的感测和控制电路,以使在火焰感测电极的寄生电流的存在下进行测量。 因此,一个用于实现该方法装置是游离缺失盘。
    • 4. 发明公开
    • Flame detection device and method for detecting a flame
    • Flammendetektionsvorrichtung und Verfahren zur Detektion von Flammen
    • EP2194325A1
    • 2010-06-09
    • EP08170452.0
    • 2008-12-02
    • ABB Research Ltd.
    • Haffner, Ken YvesPape, Detlev
    • F23N5/16
    • F23N5/16F23N2029/00F23N2029/08F23N2037/02G01K11/22
    • An acoustic sensor device (100) which is adapted for detecting at least one property of an interface between a flame medium of a flame (201) to be investigated and an ambient medium of the flame (201) is provided. The acoustic sensor device (100) includes an acoustic transmitter (101) which transmits an acoustic wave (105) towards a flame location of the flame (201). Furthermore, an acoustic receiver (102) adapted for receiving a modified acoustic wave from the flame location and for outputting a receiver signal on the basis of the modified acoustic wave is provided. A processing unit which is operatively connected to the acoustic receiver (102) processes the outputted receiver signal and derives the at least one interface property on the basis of the processed receiver signal.
    • 提供了一种用于检测被研究的火焰(201)的火焰介质与火焰(201)的周围介质之间的界面的至少一种性质的声学传感器装置(100)。 声学传感器装置(100)包括向火焰(201)的火焰位置传递声波(105)的声发射器(101)。 此外,提供了一种适于从火焰位置接收修改的声波并基于修正的声波输出接收机信号的声音接收器(102)。 可操作地连接到声音接收器(102)的处理单元处理所输出的接收机信号,并且基于经处理的接收机信号导出至少一个接口特性。
    • 5. 发明公开
    • EARLY FIRE DETECTION METHOD AND APPARATUS
    • 火灾的方法和系统早期
    • EP1275094A2
    • 2003-01-15
    • EP01984023.0
    • 2001-02-05
    • Privalov, George
    • PRIVALOV, GeorgePRIVALOV, Dimitri DI
    • G08B17/12
    • G08B17/125F23N5/082F23N2029/08F23N2029/20
    • The present invention provides a method and apparatus for detecting fire in a monitored area. In a preferred embodiment, this method is seen to comprise the steps of: (1) capturing video images of the monitored area in the form of two-dimensional bitmaps whose spatial resolution is determined by the number of pixels comprising the bitmaps, (2) cyclically accumulating a sequential set of these captured bitmaps for analysis of the temporal variations being experienced in the pixel brightness values, (3) examining these sets of bitmaps to identify flusters of contiguous pixels having either a specified static component or a specified dynamic component of their temporally varying brightness values, (4) comparing the patterns of the shapes of these identified, static and dynamic clusters to identify those exhibiting patterns which are similar to those exhibited by the comparable bright static core and the dynamic crown regions of flickering open flames, and (5) signalling the detection of a fire in the monitored area when the degree of match between these identified, static and dynamic clusters and the comparable regions of flickering open flames exceeds a prescribed matching threshold value.
    • 6. 发明公开
    • Langzeitsicheres Flammenüberwachungsverfahren und Überwachungsvorrichtung
    • LangzeitsicheresFlammenüberwachungsverfahrenundÜberwachungsvorrichtung
    • EP1256763A2
    • 2002-11-13
    • EP02003787.5
    • 2002-02-20
    • Karl Dungs GmbH & Co.
    • Techt, Marco
    • F23N5/08
    • F23N5/082F23N2029/08
    • Eine Überwachungseinrichtung (1), die insbesondere zur Flammenüberwachung an ölbetriebenen Gebläsebrennern vorgesehen ist, weist einen Fotowiderstand (6) auf, der an einer Überwachungsschaltung (7) angeschlossen ist. Diese wertet das von dem Fotowiderstand (6) abgegebene Signal zweikanalig aus. Ein erster Kanal (11) dient zur Erfassung der mittleren Helligkeit. Ein zweiter Kanal (12) dient zur Erfassung von Wechselanteilen, die von Flackern der Flamme herrühren. Die Flamme wird nur dann als ordnungsgemäß brennend anerkannt, wenn an beiden Kanalausgängen der Kanäle (11, 12) ein Signal vorhanden ist, bzw. das Signal jeweils in einem vorgegebenen Bereich liegt. Auf diese Weise lassen sich insbesondere schleichende Änderungen der Charakteristik des Fotowiderstands, wie sie bei Brennerdauerbetrieb auftreten und gefährlich sind, erkennen. Es wird sichergestellt, dass die Flammenüberwachung nicht mit einem defekten Fotowiderstand vorgenommen oder versucht wird.
    • 该方法包括使用连接到双通道监视电路(7)的光电导电池(6)。 第一通道(11)用于确定平均亮度,第二通道(12)用于监视可变分量,即火焰闪烁。 当两个输出通道的数值都在给定的范围内时,火焰只能正常分类。 监控设备也提供独立声明。
    • 7. 发明公开
    • Flame detector units and flame management systems
    • Flammendetektoreinheit und Flammenverwaltungssystem
    • EP1050715A2
    • 2000-11-08
    • EP00303702.5
    • 2000-05-03
    • Spectus Flame Management Limited
    • Tindall, DavidInnes, David
    • F23N5/08
    • F23N5/082F23N2029/08F23N2029/14
    • A flame management system comprises two flame detector units (1,2) which are arranged to view different regions of at least one flame (10) and are connected to separate channels of a processor (6). Each detector unit (1,2) has at least two operating modes, such as an infra-red and an ultra-violet operating mode, or a normal and a sensitive infra-red or ultra-violet mode, etc. and is switchable between those modes by the processor (6). The processor (6) thus selectively processes the output of the two units (1,2) and actively controls the operating mode of each to obtain responses appropriate to the type and/or condition of the or each flame (10) being monitored. In order to enable both IR and UV monitoring from a single detector unit (1,2), the detector includes at least one photo-sensitive member (70) together with an optical element such as an IR filter (73) which operates selectively to deliver an undivided IR or an undivided UV compact to the at least one photo-sensitive member.
    • 火焰管理系统包括两个火焰检测器单元(1,2),其布置成观察至少一个火焰(10)的不同区域,并且连接到处理器(6)的分离的通道。 每个检测器单元(1,2)具有至少两种操作模式,例如红外和紫外线操作模式,或正常和敏感的红外或紫外线模式等,并且可以在 这些模式由处理器(6)。 因此,处理器(6)选择性地处理两个单元(1,2)的输出,并且主动地控制每个单元(1,2)的操作模式,以获得适合于被监视的每个火焰(10)的类型和/或状况的响应。 为了实现来自单个检测器单元(1,2)的IR和UV监测,检测器包括至少一个光敏元件(70)和诸如IR滤光器(73)的光学元件,其选择性地 将至少一个光敏元件的未分割的IR或不分割的UV致密物递送到至少一个光敏元件。