{"id":11764,"date":"2018-07-23T12:59:43","date_gmt":"2018-07-23T10:59:43","guid":{"rendered":"https:\/\/www.kromschroeder.de\/process-heat\/products\/kromschroeder-system-technology\/gas-systems\/gas-utilization\/process-control-systems\/07p-single-burner-system-pilot-and-main-burners-2-point-controlled\/"},"modified":"2018-07-23T12:59:43","modified_gmt":"2018-07-23T10:59:43","slug":"07p-single-burner-system-pilot-and-main-burners-2-point-controlled","status":"publish","type":"page","link":"https:\/\/www.kromschroeder.de\/en\/kromschroeder-system-technology\/gas-systems\/gas-utilization\/process-control-systems\/07p-single-burner-system-pilot-and-main-burners-2-point-controlled\/","title":{"rendered":"07p Single burner system, pilot and main burners, 2-point-controlled"},"content":{"rendered":"

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    KST – KROMSCHR\u00d6DER SYSTEM TECHNOLOGY<\/h1>\n

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    Process Control Systems<\/h1>\n

    overview<\/a><\/p>\n

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    Single burner system, pilot and main burners, 2-point-controlled<\/h1>\n
    Single burner system, 2-point controlled, no air preheating, Pilot burner, pneumatic ratio control system, Ionization control<\/div>\n
    Flowchart No.: 1.2.1.2.1.1<\/div>\n
    Standard: EN 746-2<\/a><\/div>\n
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    \"\"<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    No.<\/th>\nComponent description<\/th>\nStandards and Docuthek<\/th>\n<\/tr>\n
    100<\/td>\nPower supply unit<\/a><\/td>\n<\/td>\n<\/tr>\n
    210<\/td>\nCombustion air fan<\/a><\/td>\n<\/td>\n<\/tr>\n
    300<\/td>\nSafety limits<\/a><\/td>\n\n
    311<\/td>\nAir min. air pressure monitor<\/a>, e.g. DG<\/td>\n\n
    321<\/td>\nGas min. low-pressure cut-off<\/a>, e.g. pressure switch for gas DG<\/td>\n\n
    322<\/td>\nGas max. high gas pressure protection<\/a>, e.g. pressure switch for gas DG<\/td>\n\n
    331<\/td>\nEmergency stop\/Emergency off\/Gas off<\/a>, e.g. Emergency Stop button NTA<\/td>\n\n
    332<\/td>\nOvertemperature \u03d1 max<\/a><\/td>\n\n
    341<\/td>\nPre-purge<\/a><\/td>\n\n
    350<\/td>\nValve proving system<\/a>, e.g. tightness control TC 1-3
    \n<\/i><\/td>\n    		\n
    350<\/td>\nValve proving system<\/a>, e.g. tightness control TC 410
    \n<\/i><\/td>\n    		\n
    450<\/td>\nBurner control unit<\/a> BCU 480<\/p>\n

    The burner control unit is mounted to the burner on site and ensures simple commissioning of the burner system.<\/i><\/td>\n

    		\n
    530<\/td>\nTemperature control<\/a><\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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    Application<\/h2>\n

    Process control system (PCC) for control and 2-point temperature control of a pilot and main burner system, ionization-controlled with gas and cold air supply.<\/p>\n<\/div>\n

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    Function<\/h2>\n

    The supply voltage is supplied to the control system via the power supply unit (100).<\/p>\n

    Start-up of the combustion air fan (210) includes the \u201cno flow\u201d state check of the Air min. air pressure monitor (311).<\/p>\n

    The control block for monitoring the safety limits (300) assumes the safety-related monitoring of the safety limits Air min. air pressure monitor (311), Gas min. low-pressure cut-off (321), Gas max. high gas pressure protection device (322), Emergency stop\/Emergency off\/Gas off (331) and \u03d1 max. overtemperature monitor (332).<\/p>\n

    Once the system has started and all safety limits (300) are present, pre-purging (341) of the thermoprocessing equipment begins and the tightness control (350) checks the automatic shut-off valves. Once pre-purge (341) has been completed and the OK signal has been issued by the tightness control (350), the safety interlocks (shown in yellow) are set and the pilot burner is started by the automatic burner control unit (450). Once the automatic burner control unit (450) has received the flame signal from the pilot burner, the main burner is started in the ignition position. Once the automatic burner control unit (450) has received the flame signal from the main burner, the burner starts. The 2-point temperature controller (530) now takes over the temperature control of the heating equipment in High\/Low mode.<\/p>\n<\/div>\n

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    Note<\/h2>\n

    A system fault lock-out occurs if<\/p>\n