{"id":11875,"date":"2018-07-24T13:03:42","date_gmt":"2018-07-24T11:03:42","guid":{"rendered":"https:\/\/www.kromschroeder.de\/process-heat\/products\/kromschroeder-system-technology\/gas-systems\/gas-utilization\/burner-systems\/05-single-burner-system-modulating-controlled\/"},"modified":"2018-07-24T13:03:42","modified_gmt":"2018-07-24T11:03:42","slug":"05-single-burner-system-modulating-controlled","status":"publish","type":"page","link":"https:\/\/www.kromschroeder.de\/en\/kromschroeder-system-technology\/gas-systems\/gas-utilization\/burner-systems\/05-single-burner-system-modulating-controlled\/","title":{"rendered":"05 Single burner system, modulating-controlled"},"content":{"rendered":"

[et_pb_section bb_built=”1″ fullwidth=”on” specialty=”off” _builder_version=”3.0.89″ next_background_color=”#000000″ global_module=”3071″][et_pb_fullwidth_menu global_parent=”3071″ _builder_version=”3.0.89″ menu_id=”52″ submenu_direction=”downwards” fullwidth_menu=”off” background_layout=”dark” background_color=”#000000″ active_link_color=”#aaaaaa” dropdown_menu_text_color=”#ffffff” mobile_menu_text_color=”#000000″ dropdown_menu_line_color=”#ffffff” mobile_menu_bg_color=”#ffffff” \/][\/et_pb_section][et_pb_section bb_built=”1″ fullwidth=”on” specialty=”off” prev_background_color=”#000000″ next_background_color=”#000000″ _builder_version=”3.8.1″ global_module=”10523″][et_pb_fullwidth_menu admin_label=”KST Men\u00fc” global_parent=”10523″ _builder_version=”3.8.1″ menu_id=”83″ submenu_direction=”downwards” fullwidth_menu=”off” background_color=”#3f3f3f” background_layout=”dark” \/][\/et_pb_section][et_pb_section bb_built=”1″ _builder_version=”3.0.60″ custom_padding=”0px||0px|” next_background_color=”#f1f1f1″ prev_background_color=”#000000″ global_module=”1488″][et_pb_row global_parent=”1488″ custom_padding=”0px||0px|” background_position_1=”top_left” background_repeat_1=”no-repeat” _builder_version=”3.0.60″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”][et_pb_column type=”4_4″][et_pb_dmb_breadcrumbs global_parent=”1488″ font_icon=”%%36%%” _builder_version=”3.0.89″ body_font_size=”11px” body_text_color=”#666666″ link_text_color=”#666666″]<\/p>\n

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  1. Startseite<\/a><\/li>\n<\/ol>\n<\/div>\n

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

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    Burner control<\/h1>\n
    \n
    \n
    overview<\/a><\/div>\n
    <\/div>\n

    Single burner system, modulating-controlled<\/h1>\n
    Single burner system, modulating control, no air preheating, direct ignition, pneumatic ratio control system, UV control<\/div>\n
    Flowchart No.: 1.1.1.1.2.1<\/div>\n
    Standard: EN 746-2<\/a><\/div>\n
    \n

    \"\"<\/p>\n

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    Process control systems<\/p>\n<\/div>\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
    010<\/td>\nAutomatic shut-off valve, e.g. solenoid valves for gas VAS<\/p>\n

     <\/td>\n

    		\n
    020<\/td>\nAir\/gas ratio control, e.g. air\/gas ratio control GIK<\/p>\n

    \"\"Pressure regulators should be designed to be as small as possible.
    \nOur tip: to achieve good control characteristics, the maximum pressure gradient (difference between the inlet pressure and the required outlet pressure of the regulator) should be fully utilized.<\/p>\n<\/td>\n

    		\n
    030<\/td>\nValve combination VCG, as an alternative to the individual devices automatic shut-off valve (VAS)<\/i> and air\/gas ratio control (VAG)<\/td>\n\n
    040<\/td>\nMeasuring orifice, e.g. Type VMO<\/td>\n\n
    050<\/td>\nManual adjusting element for gas, e.g. flow adjusting cocks GEHV and GEH<\/td>\n\n
    060<\/td>\nStainless steel bellows unit, e.g. Type EKO<\/td>\n\n
    070<\/td>\nIndustrial burner for gas, e.g. BBG<\/p>\n

    Depending on the furnace temperature, burners BBG are used in conjunction with a stainless steel combustion chamber or a refractory concrete combustion chamber. These burners are suitable for installation in both fibre-lined and brick-lined furnaces.<\/td>\n

    		\n
    080<\/td>\nControl valve with actuator, e.g. BVA with IC<\/p>\n

    Select the smallest control valves possible so that the opening characteristic can be fully utilized. Note the residual flow when the valve is closed.<\/i><\/td>\n

    		\n
    090<\/td>\n <\/p>\n

    Manual adjusting element for air, e.g. butterfly valve for air BVA with manual adjustment<\/p>\n

    \"\"Pursuant to EN 746-2, all manual air control valves must be blocked in the required positions and secured against unintentional maladjustment.<\/p>\n<\/td>\n

    		\n
    100<\/td>\nAutomatic burner control unit, e.g. IFD or IFS<\/p>\n

    Automatic burner control units for monitoring and control of gas burners.<\/i><\/td>\n

    		\n
    110<\/td>\nIgnition transformer, e.g. TZI or TGI<\/p>\n

    \"\"Ignition transformers should be installed as close to the burner as possible.<\/p>\n<\/td>\n

    		\n
    120<\/td>\nBurner control unit BCU 460, as an alternative to the individual devices\u00a0automatic burner control unit<\/i> and ignition transformer<\/i><\/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
    130<\/td>\nUV sensor, e.g. UVS 10 or UVD<\/td>\n\n
    5.2.6 Automatic burner control systems<\/a><\/div>\n
    Docuthek<\/a><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n

    Application<\/h2>\n

    Simple, cost-effective burner system for processes which require high temperature accuracy and low circulation in the furnace, e.g. crucible and ladle heating, incineration installations, hot-air and steam generators, aluminium smelting furnaces\u2026<\/p>\n<\/div>\n

    \n

    Function<\/h2>\n

    The capacity can be adjusted continuously by activating the air control valve (080) (analogue or 3-point step signal). The pneumatic ratio control system (020\/030) controls the gas pressure proportionally to the air pressure and thus maintains a constant air\/gas ratio. At the same time, it acts as an air deficiency cut-out. Adjusting valves and\/or butterfly valves are used for limiting the air and gas flow rates and for adjusting the air\/gas ratio.<\/p>\n

    Furnace pressure fluctuations have the same effect on the gas and air flow so that the air\/gas ratio will remain unchanged.<\/p>\n

    Ignition and monitoring are ensured by an automatic burner control unit (100\/120), which must be approved for continuous operation if the burner is to operate for more than 24 hours, in accordance with EN 746-2. Pre-purge and setting the valve to ignition position must be ensured by an additional valve control system.<\/p>\n<\/div>\n

    \n

    Note<\/h2>\n

    For burner capacities between 120 and 360 kW, ignition with reduced capacity is required pursuant to EN 746-2:2010 (slow opening gas valves).<\/p>\n

    The pneumatic ratio control system in conjunction with a defined ignition position of the air control valve is an equivalent alternative to the pilot gas bypass according to figure D.6 in Annex D of EN 746-2:2010. The ignition position of the air control valve is to be monitored using limit switches or pressure switches in the air circuit.<\/p>\n

    Ignition with up to 33% of the burner rating with a safety time of 3 seconds complies with the requirements of the Standard.<\/p>\n

    For burner capacities greater than 1200 kW, the valves must be equipped with an automatic valve proving system (TC).<\/p>\n

    In continuous operation of more than 24 h, the burner must be switched off and on again once a day to check the UVS 10 sensor. As an option, a UVD for continuous operation can also be used.<\/p>\n

    When using a BBG burner, only flame control with UV sensor is possible.<\/p>\n<\/div>\n

    overview<\/a><\/div>\n<\/div>\n<\/div>\n

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    Your specialists in system solutions. Aluminium, steel, ceramics, glass industries etc. \u2014 they all need controlled temperatures for production. <\/p>\n","protected":false},"author":1,"featured_media":0,"parent":11853,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-11875","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.kromschroeder.de\/en\/wp-json\/wp\/v2\/pages\/11875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kromschroeder.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.kromschroeder.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.kromschroeder.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kromschroeder.de\/en\/wp-json\/wp\/v2\/comments?post=11875"}],"version-history":[{"count":0,"href":"https:\/\/www.kromschroeder.de\/en\/wp-json\/wp\/v2\/pages\/11875\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.kromschroeder.de\/en\/wp-json\/wp\/v2\/pages\/11853"}],"wp:attachment":[{"href":"https:\/\/www.kromschroeder.de\/en\/wp-json\/wp\/v2\/media?parent=11875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}