A method for manufacturing a burner gas manifold (1), said manifold (1) comprising a tubular body (2) in which there is present at least one partitioning member (23) which partitions the internal cavity (9) of the manifold into a plurality of chambers (24, 25) where the gas is delivered through corresponding ducts (17). Such partitioning member (23) is introduced into the manifold by a slot (22) provided for in a wall (6) of the tubular body (2) and it is welded to the manifold (1) for example by laser welding. A manifold thus made is also claimed herein.
F23D 14/04 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
F23D 14/10 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
F23K 5/00 - Feeding or distributing other fuel to combustion apparatus
Premix burner (100) provided with a hollow body (1) provided with openings (22) on a boundary wall (2). The openings (22) define a plurality of channels through which a mixture of air and hydrogen can outflow and be burned permanently, without flashbacks, on the outer face (24) of the boundary wall (2). The specific porosity and load values of the burner (100) are selected so as to ensure stable operation of the burner (100).
The invention relates to a burner deck (1) for a gas burner (2) comprising a sheet (3) enclosing a chamber (4) and having at least one protrusion (6) with a through hole (5) fluidically connected with the chamber (4) wherein the protrusion (6) comprises a concave section (8) and a convex section (9).
A plate gas burner (1) for a boiler comprising a plurality of plates (3) placed in parallel to each other and defining altogether a body (2) of the burner, every plate (3) presenting a diffuser (10) on the surface of which a flame is formed. The diffuser (10) comprises a body (20) placed above its corresponding plate, the surface (11) of the diffuser being spine-shaped.
F23D 14/04 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
F23D 14/08 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with axial outlets at the burner head
5.
Temperature sensor for gas burner and assembly consisting of such sensor and burner
A temperature sensor (1) for gas burner (2) having a thermocouple (11) comprising electric conductors (15) and a connection element (12) to connect to the burner (2) associated with a free end (18) of such thermocouple (11), said connection element (12) being suitable for being inserted inside a seat of the sensor (8) formed inside a wall (4) of the burner (2) and having a first end (26) suitable for being placed at the outer surface (6) of the burner (2), said thermocouple (11) being inserted inside a blind hole (29) of the connection element (12) which opens at a second end (28) of said connection element (12). Said blind hole (29) ends with at least one part (31) convergent towards an end zone (K) of the hole (29), said part (31) getting in contact with the thermocouple (11) inserted inside the connection element, the connection element (12) being made from an iron-chrome-aluminum alloy. An assembly comprising such temperature sensor and a burner is also claimed.
F23D 14/72 - Safety devices, e.g. operative in case of failure of gas supply
F23N 5/10 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
G01K 1/143 - SupportsFastening devicesArrangements for mounting thermometers in particular locations for measuring surface temperatures
G01K 7/04 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials
G01K 1/16 - Special arrangements for conducting heat from the object to the sensitive element
Premix burner (100) provided with a perforated outer body (3) and with a distributor (2) located inside the body (3) and provided with openings (23, 26) that allow the passage of a mixture of fuel and oxidizer towards the outer surface (31) of the casing (3) on which the flames develop during combustion. The distributor (2) and the outer casing (3) are separated by an air gap of non-zero thickness; the surface (21) of the distributor (2) has a region (200) in which the openings (26) ensure a greater volumetric flow rate of mixture than on the rest of the distributor.
A new and improved gas fired burner unit that can be utilized in applications where low emissions and high efficiency are desired including a burner body having a lower housing unit with a bottom portion, a distribution element located above the bottom portion, a burner deck located above the distribution element, and a metal fiber mesh element located above the burner deck. The burner deck supports the metal fiber mesh and spaces the metal fiber mesh from the internal distribution element to define a burner head. At least one inlet conduit communicates with the burner body and extends into the burner body to deliver a gas/air mixture to the burner body in a region located below the distribution element and above the bottom portion of the lower housing unit. The burner head has a permeability greater than 700 liters per hour, and the bottom portion of the lower housing unit includes a plurality of ribs providing added rigidity to the burner body and eliminating combustion noise.
A temperature sensor (1) for gas burner (2) having a thermocouple (11) comprising electric conductors (15) and a connection element (12) to connect to the burner (2) associated with a free end (18) of such thermocouple (11), said connection element (12) being suitable for being inserted inside a seat of the sensor (8) formed inside a wall (4) of the burner (2) and having a first end (26) suitable for being placed at the outer surface (6) of the burner (2), said thermocouple (11) being inserted inside a blind hole (29) of the connection element (12) which opens at a second end (28) of said connection element (12). Said blind hole (29) ends with at least one part (31) convergent towards an end zone (K) of the hole (29), said part (31) getting in contact with the thermocouple (11) inserted inside the connection element, the connection element (12) being made from an iron-chrome-aluminum alloy. An assembly comprising such temperature sensor and a burner is also claimed.
F23D 14/72 - Safety devices, e.g. operative in case of failure of gas supply
F23N 5/10 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
G01K 7/04 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials
A new and improved gas fired burner unit that can be utilized in applications where low emissions and high efficiency are desired including a burner body having a lower housing unit with a bottom portion, a distribution element located above the bottom portion, a burner deck located above the distribution element, and a metal fiber mesh element located above the burner deck. The burner deck supports the metal fiber mesh and spaces the metal fiber mesh from the internal distribution element to define a burner head. At least one inlet conduit communicates with the burner body and extends into the burner body to deliver a gas/air mixture to the burner body in a region located below the distribution element and above the bottom portion of the lower housing unit. The burner head has a permeability greater than 700 liters per hour, and the bottom portion of the lower housing unit includes a plurality of ribs providing added rigidity to the burner body and eliminating combustion noise.
A new and improved gas fired burner unit that can be utilized in applications where low emissions and high efficiency are desired including a burner body having a lower housing unit with a bottom portion, a distribution element located above the bottom portion, a burner deck located above the distribution element, and a metal fiber mesh element located above the burner deck. The burner deck supports the metal fiber mesh and spaces the metal fiber mesh from the internal distribution element to define a burner head. At least one inlet conduit communicates with the burner body and extends into the burner body to deliver a gas/air mixture to the burner body in a region located below the distribution element and above the bottom portion of the lower housing unit. The burner head has a permeability greater than 700 liters per hour, and the bottom portion of the lower housing unit includes a plurality of ribs providing added rigidity to the burner body and eliminating combustion noise.
A new and improved gas fired burner unit that can be utilized in applications where low emissions and high efficiency are desired including a burner body having a lower housing unit with a bottom portion, a distribution element located above the bottom portion, a burner deck located above the distribution element, and a metal fiber mesh element located above the burner deck. The burner deck supports the metal fiber mesh and spaces the metal fiber mesh from the internal distribution element to define a burner head. At least one inlet conduit communicates with the burner body and extends into the burner body to deliver a gas/air mixture to the burner body in a region located below the distribution element and above the bottom portion of the lower housing unit. The burner head has a permeability greater than 700 liters per hour, and the bottom portion of the lower housing unit includes a plurality of ribs providing added rigidity to the burner body and eliminating combustion noise.
A gas-fired boiler comprises at least one burner (1) and feeding means (4) for feeding a fluid to such burner (1), said feeding means (4) being connected to a fan (5), a gas duct (7) being provided to feed gas to said fan (5). The burner comprises at least a first main flame-diffuser element (25) and a second auxiliary flame-diffuser element (26, the feeding means being a feeder duct (4) connected to the main diffuser element (25) and to the fan (5), said fluid comprising air or a mix of air and gas which is sent in such feeder duct (4), a tubular body (17) connected to the auxiliary diffuser element (26) opening in said duct (4), a gas carrying pipe (10) opening directly in such tubular body (17).
A gas-fired boiler comprises at least one burner (1) and feeding means (4) for feeding a fluid to such burner (1), said feeding means (4) being connected to a fan (5), a gas duct (7) being provided to feed gas to said fan (5). The burner comprises at least a first main flame-diffuser element (25) and a second auxiliary flame-diffuser element (26), the feeding means being a feeder duct (4) connected to the main diffuser element (25) and to the fan (5), said fluid comprising air or a mix of air and gas which is sent in such feeder duct (4), a tubular body (17) connected to the auxiliary diffuser element (26) opening in said duct (4), a gas carrying pipe (10) opening directly in such tubular body (17).
A plate (3, 35) gas burner (1) for boilers comprises a plurality of plates (3, 35) arranged parallel to each other and defining a burner body (2), a gas manifold (6) being situated at one first end (5) of the burner body (2) and presenting a plurality of nozzles (15) placed in correspondence with openings (13) cut in the individual corresponding plates (3, 3F), at a second end (7) opposed to the first one (5) a diffuser (8) being arranged where a flame is generated thanks to the combustion of the gas coming from the plates (3, 3F), the latter being crossed by a water duct (43). In correspondence with opposed sides (26, 27) of the burner body (2) are present support elements (25) suitable for directly co-operating with corresponding nozzles (15) of the gas manifold (6) so as to support the latter, such co-operation binding said manifold (6) to the burner body (2).
F23D 14/04 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
F23D 14/64 - Mixing devicesMixing tubes with injectors
A door assembly for a premixed burner boiler comprises a door (1) having a substantially flat and annular body (5) whose central bore (7) is connected to an admission duct (6) for feeding a mix of air and gas, a burner arranged in correspondence with said bore (7) and at least one usual electrode for igniting the flame of the burner being associated with a first face (8) of such body (5), on the same face (8) an annular insulating element (3) being present and covering the portion of said face delimiting such central bore (7), such insulating element (3) being fixed to such face (8). There are present elastically deformable elements (21) suitable for being elastically coupled with said first face (8) of said body (5) and for coupling themselves with portions (36) of said insulating element (3) so as to hold it bound to such face (8).
