摘要:
A control system for an incineration plant, comprising an incineration furnace with a combustion path along which the material to be burned is transported, air supply means, a steam generator, and control means with a steam controller and an oxygen controller which, depending on respectively the generated amount of steam and the oxygen in the furnace, generate control signals for adjusting the size and/or speed of a stream of material in the furnace and/or for adjusting the air supplied. The control signals control the generated amount of steam to a first adjusting value and via air supplied the amount of oxygen to a second adjusting value. The steam controller controls a summing device which forms a sum signal used which via calculating means modifies the output signals of control circuits controlled by the output signal of the oxygen controller for the air supply to the furnace and/or the size of the supply stream of material to the furnace and the speed of the stream of material through the furnace respectively, to obtain definitive control signals.
摘要:
A device (3) for the combustion of granular solid fuel, for example wood flour pellets, chippings and the like, comprising a combustion chamber (16), an air inlet (24) having a fan (25) for providing air to the combustion chamber and for creating a predetermined through blowing of air through the combustion chamber before, during and after the combustion of the fuel, a dosing unit (12) for feeding of the fuel to the combustion chamber, an ignition device (28) for ignition of the fuel, a control and checking unit (32) for operation of associated or co-operating parts arranged in or at the combustion device and also an outlet (26) for hot combustion gases from the combustion of the fuel from the combustion chamber to a boiler section (27) in a heating boiler (6) for transfer of the heat to the heating system of the heating boiler (6), for example through water-cooled surfaces in the heating boiler. According to the invention, the combustion device (3) also comprises a movably arranged ash feeder (29) with a drive unit (30), controlled by the control and checking unit for automatic out feeding out of the combustion chamber of ashes, unburned fuel and slag products (31), which are created during the combustion of the fuel.
摘要:
The invention relates to a method for automatized combustion of solid fuel in a combustion apparatus which comprises a burner (1) which is connected to a boiler (400) and has a feeding-in opening (63, 62) for fuel and an outlet opening (3) which opens in a combustion chamber (401) inside the boiler which comprises a convection unit (402) and a flue gas pipe (407) for waste flue gases containing CO2 and not combusted O2, the combustion apparatus comprising a device (27) for feeding combustion air into the burner, and a fuel charge feeder (200, 212) for fuel provided to be driven by a motor (211), here called fuel charge feeding motor, the operation of the fuel charge feeding motor (211) being regulated by command from a control unit (300) in dependency on measured values transmitted to the control unit (300) in dependency on measured values transmitted to the control unit (300) and in dependency of the heat power the burner shall generate, and a measuring device (408) arranged for measuring the content of CO2 and or O2 in the flue gases. The invention is characterized by said measuring device (408) transmitting measuring signal to said cotrol unit (300) regarding the contents of the flue gases and that the contenets of the flue gases is regualted by means of the control unit (300) regulated the fuel charge feeding motor with reference to the values measured in the flue gases, maintaining an optimal content of the gas measured by the measuring device (408) in the flue pipe (407). The invention also relates to a combustion apparatus in which the above mentioned procedure is being applied.
摘要:
La présente invention a pour objet un dispositif de régulation de charge pour chaudière à grille mécanique (1), à vitesse d'entraînement "V" réglable et utilisant du combustible solide (2) alimenté à travers un régulateur (5) de hauteur "h" de couche (3), et apte à transmettre un circuit échangeur (17) une puissance thermique réglable. Il comprend une unité de calcul (25) relié au moins à différents capteurs de mesure de ladite hauteur "h", de ladite vitesse "V" et des paramètres de fonctionnement dudit circuit échangeur (17), et dans lequel est stocké en mémoire un coefficient Ko propre au combustible (2) utilisé, tel que la puissance théorique que peut dégager ledit combustible dans la chambre de combustion (6) de la chaudière est Qb = V x h x Ko. Cette valeur Ko est corrigée par ladite unité de calcul (25) chaque fois que l'écart entre la puissance théorique Qb et celle transmise Qm au circuit (17) est trop importante, et remplacée par une nouvelle valeur Ki calculée à partir de cette dernière chaleur mesurée. Ladite unité de calcul (25) est reliée à tout système de régulation (22) pilotant le débit d'air envoyé dans la chambre de combustion de ladite chaudière et prenant ainsi en compte ladite valeur de puissance théorique Qb et celle demandée par ledit circuit échangeur (17).
摘要:
Burner contains a casing (1) with a furnace chamber (2) built-in inside and a jet burner (3). The furnace chamber (2) has a basket grate (5) gravitationally powered by a fill pipe (6), limited by fixed walls and a movable wall in the form of a rear wall and a bottom wall rigidly connected at an obtuse angle. The movable wall has an axis of revolution (14), mounted in bearings in side walls and driven by a grate (5) cleaning mechanism actuator. The zone of corner connection of the movable wall is cut by air gaps directed perpendicular to the axis of revolution (14), and behind the rear wall a cleaning comb (19) with teeth has been mounted which in the extreme position of the grate (5) opening permeate into movable wall air gaps. The burner is equipped with an electric blowing igniter. The fill pipe (6) is covered by a secondary air pipe (7), connected with the jet burner (3) by an air chamber (9) above the furnace chamber (2). A control module cooperates with two biofuel level sensors (28, 29) which operate in infra-red radiation range in their own communication codes. The lower sensor (28) has a measurement circle placed directly above the bottom wall, and the upper one (29) has been built-in near the upper edge of the rear wall in the place of the grate (5) closing, under the fill pipe (6).
摘要:
The invention relates to a method for automatized combustion of solid fuel in a combustion apparatus which comprises a burner (1) which is connected to a boiler (400) and has a feeding-in opening (63, 62) for fuel and an outlet opening (3) which opens in a combustion chamber (401) inside the boiler which comprises a convection unit (402) and a flue gas pipe (407) for waste flue gases containing CO2 and not combusted O2, the combustion apparatus comprising a device (27) for feeding combustion air into the burner, and a fuel charge feeder (200, 212) for fuel provided to be driven by a motor (211), here called fuel charge feeding motor, the operation of the fuel charge feeding motor (211) being regulated by command from a control unit (300) in dependency on measured values transmitted to the control unit (300) in dependency on measured values transmitted to the control unit (300) and in dependency of the heat power the burner shall generate, and a measuring device (408) arranged for measuring the content of CO2 and or O2 in the flue gases. The invention is characterized by said measuring device (408) transmitting measuring signal to said cotrol unit (300) regarding the contents of the flue gases and that the contenets of the flue gases is regualted by means of the control unit (300) regulated the fuel charge feeding motor with reference to the values measured in the flue gases, maintaining an optimal content of the gas measured by the measuring device (408) in the flue pipe (407). The invention also relates to a combustion apparatus in which the above mentioned procedure is being applied.
摘要:
A device (3) for the combustion of granular solid fuel, for example wood flour pellets, chippings and the like, comprising a combustion chamber (16), an air inlet (24) having a fan (25) for providing air to the combustion chamber and for creating a predetermined through blowing of air through the combustion chamber before, during and after the combustion of the fuel, a dosing unit (12) for feeding of the fuel to the combustion chamber, an ignition device (28) for ignition of the fuel, a control and checking unit (32) for operation of associated or co-operating parts arranged in or at the combustion device and also an outlet (26) for hot combustion gases from the combustion of the fuel from the combustion chamber to a boiler section (27) in a heating boiler (6) for transfer of the heat to the heating system of the heating boiler (6), for example through water-cooled surfaces in the heating boiler. According to the invention, the combustion device (3) also comprises a movably arranged ash feeder (29) with a drive unit (30), controlled by the control and checking unit for automatic out feeding out of the combustion chamber of ashes, unburned fuel and slag products (31), which are created during the combustion of the fuel.
摘要:
A control system for an incineration plant, comprising an incineration furnace with a combustion path along which the material to be burned is transported, air supply means, a steam generator, and control means with a steam controller and an oxygen controller which, depending on respectively the generated amount of steam and the oxygen in the furnace, generate control signals for adjusting the size and/or speed of a stream of material in the furnace and/or for adjusting the air supplied. The control signals control the generated amount of steam to a first adjusting value and via air supplied the amount of oxygen to a second adjusting value. The steam controller controls a summing device which forms a sum signal used which via calculating means modifies the output signals of control circuits controlled by the output signal of the oxygen controller for the air supply to the furnace and/or the size of the supply stream of material to the furnace and the speed of the stream of material through the furnace respectively, to obtain definitive control signals.