Gas burners专利检索-火焰稳定器燃烧器和锅炉专利检索查询-专利查询网

Gas burners

阅读：271发布：2021-01-31

专利汇可以提供Gas burners专利检索，专利查询，专利分析的服务。并且A gas burner comprises an annular chamber surrounding the fuel and air inlet end of a throated nozzle, with a circular slit orifice opening from the chamber into the nozzle upstream of the throat, and a flame stabilizer at one end of the nozzle, fuel gas passing through the slit expanding to form a Coanda wall jet around the inlet peripheral converging wall of the nozzle and inducing a flow of air down the center of the nozzle, the radial pressure gradient created by the jet sheet following the converging wall of the nozzle to its throat bringing about a high degree of air entrainment, whereby stable combustion results, at a point determined by the flame stabilizer.，下面是Gas burners专利的具体信息内容。

权利要求

1. A gas burner comprising: a source of fuel gas, an annular chamber for receiving a supply of fuel gas under pressure from said source, a convergent-divergent throated nozzle surrounded near its inlet end by said annular chamber, said burner including a circular slit orifice opening from the chamber into the nozzle upstream of the throat, said nozzle and said slit being arranged to produce a Coanda effect entraining air as an oxidizer as a result of fuel gas under pressure issuing from said slit, a flame stabilizer mounted at one end of the nozzle, said flame stabilizer being mounted at the inlet end of the nozzle and is in the form of a vortex chamber with non-radial air inlet slots, whereby expansion of gas through the slit forms a Coanda wall jet around the inner peripheral converging wall of the nozzle for the induction of air down the center of the nozzle.

2. A gas burner comprising: a source of fuel gas, an annular chamber for receiving a supply of fuel gas under pressure from said source, a convergent-divergent throated nozzle surrounded near its inlet end by said annular chamber, said burner including a circular slit orifice opening from the chamber into the nozzle upstream of the throat, said nozzle and said slit being arranged to produce a Coanda effect entraining air as an oxidizer as a result of fuel gas under pressure issuing from said slit, means for adjusting the gap where the slit opens into the nozzle, a flame stabilizer mounted at one end of the nozzle, whereby expansion of gas through the slit forms a Coanda wall jet around the inner peripheral converging wall of the nozzle for the induction of air down the center of the nozzle.

3. A gas burner as in claim 2, wherein the flame stabilizer is mounted at the exit end of the nozzle.

4. A gas burner as in claim 3, wherein the end stabilizer is a tunnel stabilizer of larger diameter than the exit end, to provide return eddy currents by the helical vortex created by the gas and air immediately on leaving the exit.

5. A gas burner comprising: an annular chamber, a throated nozzle surrounded near its inlet end by the chamber, a circular slit orifice opening from the chamber into the nozzle upstream of the throat, a flexible annular diaphragm forming one wall of the annular orifice, a flame stabilizer mounted at one end of the nozzle, and a fuel gas inlet to the annular chamber, whereby expansion of gas through the slit will form a Coanda wall jet around the inner peripheral converging wall of the nozzle, for the induction of air down the center of the nozzle.

6. A gas burner as in claim 5, wherein the inlet end of the nozzle is axially adjustable with respect to an outer sleeve that forms one wall of the annular orifice.

7. A gas burner as in claim 6, wherein the adjustment is manual, as by a screwthreaded connection between the nozzle and the sleeve.

8. A gas burner as in claim 6, wherein said nozzle and said chamber are movable axially thereof and include piston means for displacing said chamber selectively relative to said nozzle, whereby the adjustment of the gap is made by said piston means.

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Gas burners

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