DS200SLCCG1AFG燃机模块,GE产品外观DS200SLCCG1AFG
Phoenix火焰扫描仪通过监测火焰的振幅来确定是否存在火焰
火焰的闪烁频谱很宽。最初应安装扫描仪，以便主燃烧区位于扫描仪的视线范围内。
以下各节中列出的位置和瞄准说明是位置的大致指南扫描仪的。扫描仪通过LED和4-20ma输出提供反馈，以协助调整
以及火焰扫描仪的正确对准。请参阅本维修通讯中描述的设置程序。
DS200SLCCG1AFG燃机模块注：可接受的扫描仪位置必须确保以下各项：在所有气流和炉膛负荷（范围）下可靠的主火焰和/或点火器火焰检测燃料燃烧）。
如果太短或位置错误，无法点燃主火焰，则拒绝点火器火焰可靠，从而禁止向燃烧器输送燃料。
注：确保在调试前选择正确的FFRT（火焰失效响应时间）1。当扫描器瞄准时，扫描器的视线以微小角度（例如5度）与燃烧器中心相交，并能看到最大的一次燃烧区，如图3所示。如果每个燃烧器仅使用一台扫描仪，则视线还应与点火火焰相交。
对于使用单独扫描仪监测主火焰和点火器火焰的装置，主火焰应看到火焰扫描仪，使其无法检测到点火器火焰。
3、扫描仪应尽可能不受限制地查看火焰。物理障碍物如空气调节器叶片、干扰叶片或其他硬件应切掉或开槽，以便它们不在扫描仪的视线范围内
The Phoenix flame scanners determine the presence or absence of flame by monitoring the amplitude of
the flame across a wide flicker frequency spectrum. The scanner should initially be mounted so that the
primary combustion zone is within the scanner’s line of sight.
The location and sighting instructions listed in the following sections are rough guidelines for the location
of the scanner. The scanner provides feedback via LEDs and the 4-20ma output to assist in the adjustment
and proper alignment of the flame scanner. Refer to the set-up procedures described in this bulletin.
Note: An acceptable scanner location must ensure the following:
Reliable main flame and/or igniter flame detection at all air flow and furnace loads (ranges
of fuel firing).
Rejection of the igniter flame if too short or in the wrong position to ignite the main flame
reliably, thus prohibiting the delivery of fuel to the burner.
Note: Ensure the correct FFRT (Flame Failure Response TIme) is selected prior to commissioning1. The best results are obtained when the scanner is aimed so that the scanner’s line of sight intersects the burner center at a slight angle (e.g. 5 degrees) and sees a maximum of the primary
combustion zone, as shown in Figure 3. If only one scanner is used per burner, the line of sight
should also intersect the igniting flame.
2. For installations where separate scanners are used to monitor main and igniter flames, the main
flame scanner should be sighted so it does not detect the igniter flame.
3. The scanner should have an unrestricted view of flame as far as possible. Physical obstructions
such as air register blades, interfering vanes, or other hardware should be cut away or notched so
they do not fall within the scanner’s line of sight
