Combustor assembly of multi-nozzle gas furnace for complete top air intake

Abstract

The invention discloses a combustor assembly of a multi-nozzle gas furnace for complete top air intake, which comprises an outer ring fire cover, an inner ring fire cover, an upper cover and a base, wherein the head of an inner ring combustor and the head of an outer ring combustor are arranged at the upper end of an upper base cover, a primary combustion chamber is arranged between the outer ring fire cover and the head of the outer ring combustor, a secondary combustion chamber is arranged between the inner ring fire cover and the head of the inner ring combustor, the upper base cover covers the inner space of the base in a sealed manner to form a chamber, a primary air inlet is arranged between the upper base cover and the base and is communicated with the chamber, a secondary air inlet needed for the combustion of the secondary combustion chamber is also arranged at the outer circumference of the upper base cover, one inner ring injection premixing pipe, a plurality of outer ring injection premixing pipes, an inner ring nozzle and a plurality of outer ring nozzles are arranged in the chamber, the inner ring injection premixing pipe is communicated with the secondary combustion chamber, the plurality of outer ring injection premixing pipes are communicated with the primary combustion chamber, and the outer ring nozzles are in one-to-one correspondence with the respective outer ring injection premixing pipes. The invention aims at providing the combustor assembly of the multi-nozzle gas furnace for complete top air intake, which is characterized in independently adjusted inner nozzles and outer nozzles and uniform combustion.

Description

technical field [0001] The invention relates to a household gas stove burner, in particular to a gas stove burner assembly with multiple nozzles and complete upper air intake. Background technique [0002] Household gas stoves are usually divided into two categories: desktop and built-in. Embedded burners mostly use two types: one is the upper air intake burner, and the other is the lower air intake burner. Most household gas stove burners with upward air intake adopt a single-nozzle structure, and the ejector adopts a vertical ejector structure. Therefore, this type of burner has only one gas nozzle to bear all the gas supply load, and independent adjustment of internal and external firepower cannot be realized. In addition, the vertical injector structure is limited by the installation height of the embedded cooker in the cabinet, and the injector part cannot be too long, so the mixing time of gas and primary air is not enough, the combustion is insufficient, and the ther...

AI Technical Summary

Problems solved by technology

Most household gas stove burners with upward air intake adopt a single-nozzle structure, and the ejector adopts a vertical ejector structure. Therefore, this type of burner has only one gas nozzle to bear all the gas supply load, and independent adjustment of internal and external firepower cannot be realized.

In addition, the vertical injector structure is limited by the installation height of the embedded cooker in the cabinet, and the injector part cannot be too long, so the mixing time of gas and primary air is not enough, the combustion is insufficient, and the thermal efficiency is low, so the power cannot be too large

Another household gas stove burner with downward air intake adopts a horizontal injector. The burner with this structure has the following disadvantages: the entire burner is bulky and takes up a lot of space; and the primary air required for combustion needs to be drawn from the gas stove The bottom shell enters the ejector supply. For the embedded gas stove, it is necessary to open a hole in the cabinet or the stove panel to solve the air supply. This will cause inconvenience to the overall design of the stove and the overall design of the kitchen, and the shape and appearance are not beautiful.

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