QRA2 火焰探測(cè)器

品牌：SIEMENS（西門(mén)子）(原LANDIS&GYR)

產(chǎn)地：德國(guó)

火焰探測(cè)器與西門(mén)子燃燒控制器配合使用，用于燃?xì)饣蛉加突鹧娴谋O(jiān)測(cè)。

火焰探測(cè)器用于監(jiān)測(cè)燃?xì)饣鹧�、黃色或藍(lán)色燃油燃燒火焰以及點(diǎn)火火花的校對(duì)。

這種類(lèi)型的火焰探測(cè)器監(jiān)測(cè)燃?xì)饣蛉加突鹧娣懦龅?UV 輻射產(chǎn)生的火焰信號(hào)。輻射探測(cè)器是一個(gè)帶 2 個(gè)電極的 UV 光電管，當(dāng)它被光譜中 190...270 nm 范圍的光照射時(shí)便會(huì)點(diǎn)燃，從而啟動(dòng)火焰探測(cè)器電路內(nèi)的電流。UV 不會(huì)對(duì)燃燒室內(nèi)灼熱的耐火磚,日光或照明光線產(chǎn)生反應(yīng)。

The flame detectors are used for the supervision of gas flames, yellow- or blue-burning oil flames and for ignition spark proving.

• With this type of flame supervision, the UV radiation emitted by gas or oil flames is used to generate the flame signal.
• The radiation detector consists of a UV-sensitive cell with 2 electrodes, which ignite when illuminated with radiation in the 190...270 nm range of the spectrum, thereby triggering a current in the flame detector circuit.
• The UV cell does not respond to glowing firebrick in the combustion chamber, daylight or light from the boiler room illumination.