Two-time upside-entrainment burner

Abstract

The invention discloses a two-time upside-entrainment burner. The two-time upside-entrainment burner comprises a base and a support. Both the base and the support are integrally formed. The support is arranged on the base. Primary air inlets are formed between the base and the support. A thermocouple is arranged on the base. Outer air inlet nozzles and inner air outlet nozzles are obliquely arranged on the base. Outer ejecting pipes and inner injecting pipes are obliquely arranged on the support. The support is provided with an outer annular groove, a middle annular groove and an inner annular groove, wherein the outer annular groove communicates with the outer air inlet nozzles through the outer ejecting pipes, and the inner annular groove communicates with the inner air inlet nozzles through the inner ejecting pipes. The support is provided with a secondary air inlet which communicates with the middle annular groove. According to the two-time upside-entrainment burner, air input is large, an ejecting pipeline is long, and fuel gas is evenly mixed with air and can be burnt sufficiently; and the thermocouple is arranged on the base so that fuel gas leakage can be prevented. Furthermore, the base and the support are integrally formed, so that manufacturing and assembling are easy and convenient.

Description

technical field [0001] The invention relates to the field of cookers, in particular to a secondary upward air intake burner. Background technique [0002] The current gas cooker generally adopts the upper intake air burner, and its working principle is: under a certain pressure, the gas enters the ejection pipe from the air inlet nozzle at a certain flow rate, and a certain amount of surrounding air is attracted by the ejection effect of the energy of the gas itself. , this part of air is called "primary air". The primary air and gas are mixed in the injection tube for combustion. During the combustion process, air is drawn from around the flame to support combustion. This part of air is called "secondary air". However, the amount of air intake Insufficient combustion will lead to incomplete combustion, and uneven mixing of air and gas will result in inefficient combustion. [0003] Chinese patent (Application No. 201120315395.6) discloses an upward air intake burner. The b...

AI Technical Summary

Problems solved by technology

Although the air intake of the upper air intake burner is sufficient, the air intake nozzle of the burner is vertically arranged, forming a large angle with the horizontal plane, so that the ejector pipe that is the same as the central axis of the air intake nozzle cannot be extended. Long, so that the injection effect is poor, the mixture of gas and air is not sufficient and uneven, resulting in low combustion efficiency, and there is no protection device, when the burner is suddenly extinguished, the gas is easy to leak. In addition, the burner has multiple parts, which makes the manufacturing and assembly complicated.

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