摘要:
A compact burner with both fuel and combustive-air regeneration (11) comprising: a refractory block (12), a metallic body (13) of the burner, internally coated with an insulating refractory layer (14), and an ignition device (15) with flame detection, wherein said refractory block (12) is positioned directly facing a combustion chamber of a furnace, wherein said metallic body (13) of the burner comprises a pair of regeneration units (16, 17) both coated by said insulating refractory layer (14), an intermediate refractory block (33) also being provided, which separates said pair of regeneration units (16, 17) and sealingly collaborates with said refractory block (12), said pair of regeneration units comprises an air- regeneration unit (16) and a fuel-regeneration unit (17) integrated with each other and supported in said metallic body (13), said air-regeneration unit (16) and fuel-regeneration unit (17) both being connected to a single combustion pre-chamber of the burner (29) positioned in said refractory block (12), wherein said combustion pre- chamber of the burner (29) is also connected to said ignition device (15) with flame detection interposed in said two units (16, 17), wherein said air-regeneration unit (16) and fuel-regeneration unit (17) are connected to said combustion pre-chamber of the burner (29) by means of at least one respective intermediate duct (30, 31) positioned in said refractory block (12).
摘要:
A heat exchanger plate for a plate heat exchanger (12) includes a first side, a second side and a centre point (P) through which an imaginary centre axis (A) extends in a direction perpendicular to a plane of the plate. The plate comprises a first port for a first medium, and at least a second port and a third port for a second medium. The plate further comprises a first sealing arranged on the second side around the first port, a second sealing arranged on the second side at a circumference of the plate, and a closed third sealing arranged between the first and second sealings to form a first heat transfer area and a second heat transfer area separated from the first heat transfer area. The second port is arranged in the first heat transfer area and the third port is arranged in the second heat transfer area.
摘要:
The invention relates to a power co-generation apparatus including a gas microturbine supplied by a "vortex" combustion chamber (1) for carrying out a "flameless" combustion mode and having at least one recovery device / heat exchanger (3) for preheating compressed combustion air from a compressor of the microturbine, before injecting said preheated air into the combustion chamber (1), characterised in that the combustion chamber (1) essentially includes a cylindrical chamber (2) comprising: a central tube (5) provided such that the preheated air is injected at a first end of the chamber (10) in a first annular zone (7) located between the outer wall of the combustion chamber (2) and the central tube (5); at a second end of the chamber (11), oriented slots (12) and injections of fuel gas (4) into the central tube (5), arranged to quickly rotate the preheated air injected via said slots (12) into the central tube (5) according to a flow vortex parallel to the axis of the combustion chamber and to provide the intimate mixture of the preheated air, the fuel gas and the combustion gases inside the central tube (5) at a main, central combustion area (8); and an annular outlet (14) for the combustion gases located in the central tube (5) at the first end (10) of the chamber (2) and connected to a distributor of the turbine.
摘要:
The present invention is a method of optimizing radiant and thermal efficiency of a gas fired radiant tube heater (100). A heat exchange blower (108) receives intake air and delivers intake air through a heat exchanger (132) as pre-heated air to a combustion air blower (110). The combustion air blower receives pre-heated intake air from the heat exchanger and then provides the pre-heated intake air to a burner (120) for mixing with fuel. The fuel-intake air mixture is burned in the burner thereby producing combustion gasses which are fired into a radiant tube (118). The exhaust combustion gases pass through the balance of the radiant tube and through the heat exchanger where residual heat is transferred and extracted from the combustion gases to pre-heat the intake air. The turbulators (160) are configured to increase the turbulence within the radiant tube and are placed within the initial 3m (10') to 9 m (30') of the radiant tube after the burner to increase the tube temperature and the radiation emitted from this section of the radiant tube.
摘要:
A self-regenerating industrial burner including a head with which at least one first fuel injection nozzle, associable at an inlet with a fuel supplying group, and at least one pair of second nozzles, that can be alternatively and selectively passed through by combustion air and combustion exhaust gases, are associated; a tubular body open at opposite ends, arranged at a front part of the head and coaxial to the at least one first nozzle with an end close to the face of the head at which the first nozzle and the at least one pair of second nozzles protrude and the opposite end distant from the face. Each second nozzle includes at least one first tubular portion, radially lying outside the tubular body and defining at an end at least one first port, alternatively for exit of the combustion air and for inlet of the combustion exhaust gases.
摘要:
Die Erfindung betrifft eine Gaskochstelle (1) für ein Kochfeld (2), mit mehreren Gasbrennern (3), der ein Brennerunterteil (9) und ein auf dem Brennerunterteil (9) angeordnetes Brenneroberteil (10) aufweist, einer Kochmuldenwanne (6), einer Deckplatte (7) zum Abdecken der Kochmuldenwanne (6) und einer zwischen der Kochmuldenwanne (6) und der Deckplatte (7) angeordneten Zwischenwand (19), wobei das Brennerunterteil (9) zwischen der Kochmuldenwanne (6) und der Deckplatte (7) angeordnet ist und wobei eine Primärluftzufuhr zu dem Gasbrenner (3) durch einen zwischen der Zwischenwand (19) und der Deckplatte (7) angeordneten Zwischenraum (20) erfolgt.