Device for fuel combustion in the enriched and depleted zones

FIELD: power industry.

SUBSTANCE: fuel combustion device in the enriched and depleted zones contains the first plate 110 and the second plate 120, facing each other to provide the enriched mixture to pass between them through the rich mixture channel 173; the third plate 130, configured to provide the depleted mixture to pass through the depleted mixture channel 176, formed between the second plate 120 and the third plate 130; the first burner outlet element 140, configured to combust the enriched mixture; and the second burner outlet element 150, configured to combust the depleted mixture, wherein the mixture inlet 161 is formed between the first plate 110 and the second plate 120, to which some air amount is supplied by the fan 300 and gaseous fuel, injected from the nozzle 710, the channel supply section 171 for the mixture and channel diffuser 172 for the mixture to provide the enriched mixture passing, having passed through the mixture inlet 161 into the enriched mixture channel 173, the air inlet 162 to which the rest of the air is supplied by the fan 300, and the air channel supplying section 174, through which the air passes through the air inlet 162, at that the plurality of the air through holes 121 are formed for passing through the second plate 120, to provide the air passing from the air channel supplying section 174 into the air channel 175, formed between the second plate 120 and the third plate 130, and the plurality of distribution holes 122 are formed to pass through the second plate 120 to provide passing of some mixture amount, coming through diffusor 172 of the mixture channel into the depleted mixture channel 176.

EFFECT: invention allows to reduce NOx and CO emissions into the atmosphere and increase the stability of fuel combustion.

7 cl, 10 dwg

 



 

Same patents:

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering. the invention relates to the field of power engineering. The gas burner (10) contains a bowl-shaped housing (12) of the basement, head (14), installed on the housing (12) of the basement, upper cover (16), installed on the head (14) of the burner and with multiple holes (34) for flame discharge and sending the gas-air mixture towards heated object (36), meanwhile the head (14) of the burners have a zone (28) of gas-air mixture supplied into this head (14), and the mixing zone (28) is designed as the ring chamber, which in the cross-section is gradually expanded at moving in radial direction towards the holes for the flame discharge, which (34) are designed so that the gas-air mixture is discharged through these holes (34) in vertical direction, the head (14) has the stabilization zone (30) located between the mixing zone (28) and holes (34) for flame discharge with the constant perimeter of the cross-section. The holes (34) for flame discharge are designed as through and pass through the upper cover (16) in vertical direction. The holes (34) for flame discharge are located in at least one row along the perimeter of the upper cover (16).

EFFECT: invention allows to improve the operating reliability of the burner.

6 cl, 2 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering. the invention relates to the field of power engineering. The gas burner (10) contains a bowl-shaped housing (12) of the basement, head (14), installed on the housing (12) of the basement, upper cover (16), installed on the head (14) of the burner and with multiple holes (34) for flame discharge and sending the gas-air mixture towards heated object (36), meanwhile the head (14) of the burners have a zone (28) of gas-air mixture supplied into this head (14), and the mixing zone (28) is designed as the ring chamber, which in the cross-section is gradually expanded at moving in radial direction towards the holes for the flame discharge, which (34) are designed so that the gas-air mixture is discharged through these holes (34) in vertical direction, the head (14) has the stabilization zone (30) located between the mixing zone (28) and holes (34) for flame discharge with the constant perimeter of the cross-section. The holes (34) for flame discharge are designed as through and pass through the upper cover (16) in vertical direction. The holes (34) for flame discharge are located in at least one row along the perimeter of the upper cover (16).

EFFECT: invention allows to improve the operating reliability of the burner.

6 cl, 2 dwg

Burner // 2560968

FIELD: power industry.

SUBSTANCE: burner contains the housing with expanding section, fuel line with spray nozzle at the end, a nozzle, installed over the expanding section of the housing, and spiral. The housing consists of three chambers: the first mixing chamber, the turbulent chamber and the second mixing chamber. The first mixing chamber has at least two air holes. Total area of cross sections of these two air holes shall be not smaller than the housing cross section area. In the turbulent chamber the spiral is fixed. The spiral is made from heat-resistant alloy. The second mixing chamber has at least two air holes. Sum of areas of cross sections of the named air holes and area of cross sections of non-expanding section of the housing shall be equal to the area of cross section of the nozzle.

EFFECT: obtaining of ecologically clean combustion products, reliable and constant flame stabilization, wide range of flame adjustment, full combustion of fuel, reliability of burner design, decrease of energy consumption for burning.

4 cl, 4 dwg

FIELD: power industry.

SUBSTANCE: fan metal fibre gas torch contains detachable metal fibre gasket, installed on the ignition assembly of torch head, supply pipe connected with central section of bottom part of the torch head, fan for oxygen supply necessary for gas combustion, via the supply pipe, and gas supply device, at that fan metal fibre gas torch contains: distributing blade of free stroke, secured under metal fibre gasket of torch head, and free rotating in accordance with pressure of discharged air containing gas; and bent guide plate secured to bottom end of central shaft of the distributing blade of free stroke for uniform pressure spreading of gas rising upwards. The distributing blade of free stroke has non-electric design, i.e. does not require motor or electric power. The bent guide plate has diameter exceeding the internal diameter of the supply pipe.

EFFECT: invention ensures uniform flame ignition along full gasket and reduces noise.

3 cl, 7 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to the field of energy. A gas burner (100, 200, 300), a gas stove comprising the gas burner and the burner (1), wherein the gas burner comprises a body (2) of the base located beneath the hob (1) and comprising a chamber (21) connected to at least one a horizontal tube (7) is a venturi fed with at least one gas nozzle (6), housing (4) of the mixer disposed on the housing (2) of the base and above the hob (1) and having a base (42) in a toroidal shape which defines a toroidal mixing chamber (40) communicating with the chamber (21) of the housing base and at least one opening (43, 343) for the secondary air passage, a circular top cover (5) arranged above the housing (4) of the mixer and having at least one opening (50, 350) communicating with at least one opening (43, 343) of the mixer housing for secondary air passage, and an inner surface (52) facing towards the axis of the upper cover in which are formed a plurality of apertures (53) to the flame, communicating with the mixing chamber (40) for the release of the flame inside said base (42) of the housing (4) of the mixer is spaced from the housing (2) of the base and hotplate (1) so as to form a gap (8 ) through which may flow a first stream (F2′) of the secondary air over the hob (1), wherein the first stream (F2′) of the secondary air flows through the at least one opening (43, 343) of the mixer housing and at least one opening (50, 350) of the top cover so as to feed the air flames from apertures (53) in the upper cover. Outer cover (5) has an outer surface (51) inclined by an angle (α), constituting 55-75° relative to a horizontal plane (P) parallel to the burner (1), and an inner surface (52) inclined by an angle (β) constituting 5-25° relative to a horizontal plane parallel to the burner (1) so as to produce a second stream (F2″), secondary air above the hob (1), sliding along the outer surface (51) and the inner surface (52) of the upper cover.

EFFECT: invention makes it possible to create an efficient, safe, easy to manufacture and installation of the burner.

10 cl, 13 dwg

FIELD: energy.

SUBSTANCE: invention relates to power engineering. Gas burner (100) with inward-facing flame comprises a base body (2), designed to be placed under gas hob (1), and disk-shaped cover (5) located above said base body (2), the said base body (2) comprises a central chamber (30) – cylindrical or truncated-conical, designed for connection with at least one horizontal venturi pipe (7), fed at least one gas injector (6); and peripheral toroidal chamber (23), at least two partitions (4) forming at least two holes (40), providing communication between said central chamber (30) and said peripheral toroidal chamber (23). Note here that said cover (5) comprises a central plate (50) located on said central chamber (30) of the main body, intermediate toroidal section (51) located on the said walls (4) of the main body, and ring (52) for flame arranged on said peripheral toroidal chamber (23) of the main body and has inclined surface, where there are multiple holes (53), communicating with said peripheral toroidal chamber (23). Note here that said holes (53) have axis inclined upwards and to vertical axis of torch for flame propagation inside.

EFFECT: invention allows creating an effective, safe and easy to manufacture burner.

11 cl, 8 dwg

FIELD: engines and pumps.

SUBSTANCE: combustion chamber for a gas turbine engine has a front end portion that supports at least one fuel-air nozzle. Each fuel-air nozzle comprises an auxiliary pre-mixing nozzle comprising pre-mixing lines that have concentric axes guiding the fuel-air mixture along the axis from the auxiliary pre-mixing nozzle. The auxiliary nozzle may have an annular channel located radially outwardly of it, and air jets that direct air radially outward from the pre-mixing lines. Also versions of the way of operation of the fuel-air nozzle for the gas-turbine engine are presented.

EFFECT: invention allows the premixing of fuel and air with simultaneous reduction of nitrogen oxides.

24 cl, 11 dwg

FIELD: power industry.

SUBSTANCE: fuel combustion device in the enriched and depleted zones contains the first plate 110 and the second plate 120, facing each other to provide the enriched mixture to pass between them through the rich mixture channel 173; the third plate 130, configured to provide the depleted mixture to pass through the depleted mixture channel 176, formed between the second plate 120 and the third plate 130; the first burner outlet element 140, configured to combust the enriched mixture; and the second burner outlet element 150, configured to combust the depleted mixture, wherein the mixture inlet 161 is formed between the first plate 110 and the second plate 120, to which some air amount is supplied by the fan 300 and gaseous fuel, injected from the nozzle 710, the channel supply section 171 for the mixture and channel diffuser 172 for the mixture to provide the enriched mixture passing, having passed through the mixture inlet 161 into the enriched mixture channel 173, the air inlet 162 to which the rest of the air is supplied by the fan 300, and the air channel supplying section 174, through which the air passes through the air inlet 162, at that the plurality of the air through holes 121 are formed for passing through the second plate 120, to provide the air passing from the air channel supplying section 174 into the air channel 175, formed between the second plate 120 and the third plate 130, and the plurality of distribution holes 122 are formed to pass through the second plate 120 to provide passing of some mixture amount, coming through diffusor 172 of the mixture channel into the depleted mixture channel 176.

EFFECT: invention allows to reduce NOx and CO emissions into the atmosphere and increase the stability of fuel combustion.

7 cl, 10 dwg

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