a stove

Abstract

A furnace end comprises a head portion, an injection tube portion and door sealing pieces. The head portion comprises a center air outlet tube, an annular air cavity surrounding the center air outlet tube, a center air inlet connector located at the bottom of the head portion and a mixing cavity communicated with the annular air cavity. The door sealing pieces are arranged at the air inlet ends of an inner injection tube and an outer injection tube. Each door sealing piece is provided with a nozzle installation hole. The head portion is formed through a core pulling technology. An air inlet port of the mixing cavity and the air inlet end of the center air inlet connector are the same in orientation or certain angle or radian. The inner and outer injection tubes are integrated through a double-face core pulling technology. The head portion is formed at a time and especially formed by aluminum alloy at a time, and the sealing performance is good. The inner injection tube is formed at a time and especially formed by aluminum alloy at a time, and the sealing performance is good. In the assembly process, the inner injection tube and the head portion are directly connected, the door sealing piece is connected with the inner injection tube, a few components are used, assembly is convenient, and work efficiency is high.

Description

technical field [0001] The present invention relates to a household gas range, and more specifically relates to a burner head of a gas range. Background technique [0002] Aluminum alloy materials are more and more widely used because of their low density, strength close to or exceeding that of high-quality steel, and excellent processing properties. Currently, the burners of gas stoves are made of aluminum alloy. [0003] In order to premix the primary air used for combustion, the ejector tube of the aluminum alloy burner needs to be designed in the form of a Venturi tube (a tube with a large inner diameter at both ends and a small inner diameter in the middle). Currently, there are three types of aluminum alloy burners on the market. Method; the first is to divide the aluminum alloy furnace head into upper and lower parts along the center line of the ejector tube, and then die-cast it, and reserve riveting points at the corresponding positions. [0004] Then the parting s...

AI Technical Summary

Problems solved by technology

[0005] The first existing processing method is to divide the furnace head into upper and lower parts along the center line of the ejector tube, and then riveting, so that the parting surfaces of the upper and lower parts need to be sealed, because the sealing surface is large and it is difficult to Air leakage is prone to occur, causing potential safety hazards, and the surface of the aluminum alloy furnace head after die-casting is very uneven, and subsequent finishing of the parting surface is required, which greatly reduces production efficiency and pass rate; in the second processing method, Because the aluminum alloy burner needs to add a Venturi tube, the structure of the aluminum alloy burner is complicated and the cost is increased; in the third processing method, multiple plugs are required for sealing, the plug is complicated to make, the cost is high, and there are many sealing points easy to cause air leakage

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