Energy concentrating assembly of gas stove

Abstract

The invention discloses an energy concentrating assembly of a gas stove. The energy concentrating assembly comprises an annular first energy concentrating cover. The inner side edge of the first energy concentrating cover is lower than the outer side edge of the first energy concentrating cover. The energy concentrating assembly is characterized by further comprising a second energy concentrating cover arranged on the outer side of the first energy concentrating cover; the second energy concentrating cover is in an annulus shape, and the inner side edge of the second energy concentrating cover is lower than the outer side edge of the second energy concentrating cover; a gap is reserved between the first energy concentrating cover and the second energy concentrating cover to form a gas mixing passage; a smoke inlet of the gas mixing passage is formed between the outer side edge of the first energy concentrating cover and the corresponding position of the peripheral wall of the second energy concentrating cover; an outlet of the gas mixing passage is formed between the inner side edge of the first energy concentrating cover and the corresponding position of the peripheral wall of the second energy concentrating cover; and a plurality of through holes are formed in the peripheral wall of the second energy concentrating cover to form air inlets of the gas mixing passage. Through the arrangement, smoke generated from combustion and secondary air are mixed for secondary combustion; and the combustion efficiency can be improved, combusting is sufficient, and nitric oxides are effectively decreased.

Description

technical field [0001] The invention relates to a gas cooker, in particular to an energy gathering assembly of the gas cooker. Background technique [0002] The current stove head will produce a large amount of nitrogen oxides during operation, and there are many mechanisms for generating nitrogen oxides, mainly caused by excessive combustion temperature. Nitrogen oxides are very harmful to the human body, so how to reduce nitrogen oxides is an urgent problem to be solved. [0003] In the prior art, the technology of reducing the nitrogen oxides of the cooker is mainly at the cost of reducing the combustion temperature by increasing the secondary air. For example, the Chinese patent application number 200820043837.4 discloses a burner fire cover for a gas cooker, including the main body of the fire cover On the main body, there are several fire grooves evenly distributed along the circular curved surface. 70-85% of the length of the fire grooves is set on the inner wall of ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the technology of reducing the nitrogen oxides of the cooker is mainly at the cost of reducing the combustion temperature by increasing the secondary air. For example, the Chinese patent application number 200820043837.4 discloses a burner fire cover for a gas cooker, including the main body of the fire cover On the main body, there are several fire grooves evenly distributed along the circular curved surface. 70-85% of the length of the fire grooves is set on the inner wall of the fire cover. The angle α between the inner wall of the fire cover and the horizontal is 115°-125°. The angle β is 85°-95°. This structure can make the flame concentrate inward along the normal direction of the fire cover surface, which is more conducive to supplementing the secondary air, making the combustion more complete, and reducing the content of carbon monoxide and nitrogen oxides in the flue gas. , but this structure will lead to a reduction in combustion efficiency

[0004] At present, the energy gathering cover technology mainly reduces the heat exchange between the flue gas and the secondary air by diverting the secondary air to increase the combustion temperature and improve the thermal efficiency. For example, the Chinese patent application number 201420630319.8 discloses a convenient disassembly belt heat collector. The hob assembly of the hood includes the main body of the hob and the heat collecting tray. The main body of the hob includes a foot seat and several feet. The installation position is installed on the main body of the hob, and when the heat collecting plate is installed on the main body of the hob, an air channel is formed between the heat collecting plate and the foot seat. The hot plate isolates the harmful gas generated by the upper combustion from the air supplemented by the secondary air supply channel. This technology will cause the combustion temperature to increase, which will increase the generation of nitrogen oxides instead.

Images