{"id":10443,"date":"2018-07-11T10:07:12","date_gmt":"2018-07-11T08:07:12","guid":{"rendered":"https:\/\/www.kromschroeder.de\/process-heat\/products\/kromschroeder-system-technology\/gas-systems\/standards\/sil-pl\/examples-of-safety-functions\/flame-control\/"},"modified":"2021-01-06T15:10:19","modified_gmt":"2021-01-06T14:10:19","slug":"flame-control","status":"publish","type":"page","link":"https:\/\/www.kromschroeder.de\/en\/kromschroeder-system-technology\/gas-systems\/standards\/sil-pl\/examples-of-safety-functions\/flame-control\/","title":{"rendered":"Flame control"},"content":{"rendered":"

[et_pb_section fb_built=”1″ fullwidth=”on” _builder_version=”3.22″][et_pb_fullwidth_menu menu_id=”52″ submenu_direction=”downwards” fullwidth_menu=”off” active_link_color=”#aaaaaa” dropdown_menu_line_color=”#ffffff” dropdown_menu_text_color=”#ffffff” mobile_menu_bg_color=”#ffffff” mobile_menu_text_color=”#000000″ _builder_version=”3.0.89″ background_color=”#000000″ background_layout=”dark”][\/et_pb_fullwidth_menu][\/et_pb_section][et_pb_section fb_built=”1″ fullwidth=”on” _builder_version=”3.22″][et_pb_fullwidth_menu menu_id=”83″ submenu_direction=”downwards” fullwidth_menu=”off” admin_label=”KST Men\u00fc” _builder_version=”3.8.1″ background_color=”#3f3f3f” background_layout=”dark”][\/et_pb_fullwidth_menu][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”3.22″ custom_padding=”0px||0px|”][et_pb_row _builder_version=”3.25″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” custom_padding=”0px||0px|”][et_pb_column type=”4_4″ _builder_version=”3.25″ background_position=”top_left” custom_padding=”|||” custom_padding__hover=”|||”][et_pb_dmb_breadcrumbs font_icon=”%%36%%” _builder_version=”3.0.89″ body_text_color=”#666666″ body_font_size=”11px” link_text_color=”#666666″]<\/p>\n

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    Flame control (SIL 3, PL e)<\/h1>\n
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    The flame\u00a0supervision device\u00a0is a component of the automatic burner control unit which complies with EN 298.
    Each burner is fitted with its own automatic burner control unit.<\/p>\n

    Requirement as per EN 746-2<\/a><\/p>\n

    Risk<\/b><\/p>\n

    Non-combusted gas in the combustion chamber \u2192 explosion<\/p>\n<\/div>\n<\/div>\n

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    Determining the required SIL pursuant to IEC 62061<\/b><\/p>\n

    Frequency & exposure duration Fr: < 1 per h to \u2265 1 per day; > 10 min\u00a0\u2192\u00a05 points<\/p>\n

    Probability Pr: without flame control, this event is likely to occur.\u00a0\u2192 4 points<\/p>\n

    Avoidance Av: avoiding the hazard is impossible.\u00a0\u2192 5\u00a0points<\/p>\n

    Effects: death, loss of an eye or arm<\/p>\n

    Determining the required PL pursuant to ISO 13849-1<\/b><\/p>\n

    Severity of injury S: severe (usually irreversible injury including death)\u00a0\u2192\u00a0S2<\/p>\n

    Frequency and\/or duration of hazard exposure F: frequent to continuous and\/or long exposure to hazard\u00a0\u2192\u00a0F2<\/p>\n

    Possibility of avoiding hazard or limiting harm P: hardly possible\u00a0\u2192\u00a0P2<\/p>\n<\/div>\n<\/div>\n

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    Enter the calculated values in the adjacent \u201capp\u201d to determine the required safety level.<\/p>\n

    App: Determining the required SIL, PL<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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    The required SIL and PL can be achieved with these products. The calculation (see below) provides verification of this.<\/p>\n

    Sensor and logic: automatic burner control unit PFU (the ionization electronic is a sensor combined with the logic system.)<\/p>\n

    Actuator: solenoid valves for gas VAS<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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    Application<\/h1>\n
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    The flowchart shows how the products are integrated into the application to achieve the required safely level.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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