Triple oxygen mixing type furnace end

Abstract

The utility model discloses a triple oxygen mixing type furnace end, which is characterized in that a furnace end main body is provided with a jet orifice, the jet orifice is communicated with an air inlet channel of an air inlet, the jet orifice consists of an outer air port and an inner air port, the upper end of the inner air port is provided with an outer edge facing the outer air port, the outer air port is communicated with the air inlet channel of the air inlet through a fine hole, and the outer air port is communicated with the air inlet channel of the air inlet through a fine hole. An opening groove is formed in the side wall of the furnace end body and communicates with the outer gas port, a gas channel is formed in the inner gas port, one end of the gas channel penetrates out of the upper end of the inner gas port, the other end of the gas channel penetrates out of the side wall of the furnace end body, and the inner gas port communicates with a gas inlet cavity channel of the gas inlet through a main gas hole. According to the utility model, triple oxygen mixing in the process that fuel gas enters from the gas inlet and is sprayed out from the jet orifice is realized, and the jet stability of flames is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of burner head equipment of a gas-fired thermal generator, in particular to a triple oxygen-mixing type burner head. Background Art

[0002] As the core component of traditional gas furnace equipment, the burner head is mainly used for the conduction of gas and the control of the flame injection at the injection port. During the process of gas delivery, the traditional burner head only has a preliminary oxygen mixing structure with air, which leads to the low stability of the flame injection at the injection port and the flame is easy to extinguish. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to overcome the shortcomings of the prior art, a triple oxygen mixing furnace head is proposed to solve the problems raised in the above background technology.

[0005] (II) Technical solution

[0006] The utility model is achieved through the following technical scheme: the utility model proposes a triple oxygen mixing furnace head, including a furnace head main body, an air inlet is arranged on the furnace head main body, a jet port is arranged on the furnace head main body, and the jet port is connected to the air inlet cavity of the air inlet, the jet port is composed of an external air port and an internal air port, and the upper end of the internal air port is arranged toward the outer edge of the external air port, the external air port and the air inlet cavity of the air inlet are connected through fine holes, and the fine holes are located directly below the outer edge, an open groove is arranged on the side wall of the furnace head main body, and the open groove is connected with the external air port, an air duct is arranged in the internal air port, and one end of the air duct passes through the upper end of the internal air port, and the other end of the air duct passes through the outside of the side wall of the furnace head main body, and the internal air port is connected with the air inlet cavity of the air inlet through the main air hole.

[0007] Furthermore, the injection port is provided in plurality.

[0008] Furthermore, the outer air outlets of the injection ports are connected via a notch groove.

[0009] Furthermore, the airway is L-shaped.

[0010] Furthermore, the main air holes are arranged around the airway.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a triple oxygen mixing type burner head, which realizes triple oxygen mixing in the process of gas entering from the gas inlet and being ejected from the ejection port, thereby improving the ejection stability of the flame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is the first cross-sectional view inside the furnace head main body of the utility model.

[0016] Figure 3 It is the second cross-sectional view inside the furnace head main body of the utility model.

[0017] 1- furnace head body; 2- air inlet; 3- injection port; 31- notch groove; 4- external air port; 41- fine hole; 5- internal air port; 51- outer edge; 52- air channel; 53- main air hole; 6- opening groove. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] like Figure 1-3 A triple oxygen mixing furnace head shown in the figure comprises a furnace head body 1, an air inlet 2 is arranged on the furnace head body 1, a jet port 3 is arranged on the furnace head body 1, and the jet port 3 is connected to the air inlet cavity of the air inlet 2, the jet port 3 is composed of an external air port 4 and an internal air port 5, and the upper end of the internal air port 5 is provided with an outer edge 51 facing the external air port 4, the external air port 4 is connected with the air inlet cavity of the air inlet 2 through a fine hole 41, and the fine hole 41 is located directly below the outer edge 51, an opening groove 6 is arranged on the side wall of the furnace head body 1, and the opening groove 6 is connected with the external air port 4, an air duct 52 is arranged in the internal air port 5, and one end of the air duct 52 passes through the upper end of the internal air port 5, and the other end of the air duct 52 passes through the side wall of the furnace head body 1, and the internal air port 5 is connected with the air inlet cavity of the air inlet 2 through the main air hole 53.

[0020] As a preferred embodiment, a plurality of injection ports 3 are provided.

[0021] As a further improvement, the outer air port 4 of the injection port 3 is connected via a notch groove 31 .

[0022] More preferably, the air passage 52 is L-shaped.

[0023] More preferably, the main air holes 53 are arranged around the air channel 52 .

[0024] The triple oxygen mixing type burner head mentioned in the utility model can realize triple oxygen mixing at the injection port 3 to form a jet flame and improve its efficiency.

[0025] Specifically, first, high-pressure fuel gas enters through the air inlet 2, and enters through the fine holes on the injection plate inside the air inlet 2, forming a high-pressure airflow, so that a jet is formed at the rear end of the air inlet 2 to blow into the air inlet cavity, and at the same time, a low pressure is formed on the opening groove at the rear end of the air inlet 2, so that air enters from the opening groove and achieves preliminary mixing with the fuel gas. This is the primary oxygen mixing of the fuel gas.

[0026] Next, the gas enters the inner cavity air inlet channel on the burner body 1. First, the gas fed into the air inlet channel is ejected from the fine hole 41 on the outer air port 4 to form an upward straight jet, and when the jet is ejected upward, part of the jet will hit the outer edge 51 on the inner air port 5, thereby forming a vortex-shaped gas jet in the gap between the outer air port 4 and the inner air port 5.

[0027] At the same time, the gas flow sent into the air inlet cavity can be sent to the inner gas port 5 through the main gas hole 53. At this time, the gas flow sent out from the main gas hole on the inner gas port 5 ignites the gas, and a stable jet flame can be formed on the outer gas port 4 and the inner gas port 5, and the flame will not be blown away by the high-pressure jet upward from the fine hole 41.

[0028] Correspondingly, the high-pressure gas jet blown out from the fine hole 41 will form a negative pressure at the position of the opening groove 6 on the outer wall of the gas furnace body 1 above it because of its straight flow, sucking in the outside air and mixing it with the gas. This is the secondary oxygen mixing of the gas.

[0029] In addition, an L-shaped air passage 52 is provided on the inner air port 5. When the main air hole 53 forms an upward jet airflow, a negative pressure is formed on the air passage 52 in the middle of the inner air port 5, thereby introducing the outside air from the side opening of the air passage 52 and discharging it from the top opening to mix with the fuel gas airflow jetted from the main air hole 53. This is the tertiary oxygen mixing of the fuel gas.

[0030] In addition, a plurality of injection ports 3 are provided, and adjacent injection ports 3 are connected by gap grooves 31. With this design, when the flame on the frontmost injection port 3 is ignited, the adjacent injection ports 3 can be connected and ignited accordingly through the connection of the gap grooves 31, thereby ensuring the stability of the flame combustion on each injection port 3.

[0031] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. A triple oxygen mixing furnace head, comprising a furnace head body (1), an air inlet (2) being arranged on the furnace head body (1), an injection port (3) being arranged on the furnace head body (1), and the injection port (3) being connected to an air inlet cavity of the air inlet (2), characterized in that: The injection port (3) is composed of an external air port (4) and an internal air port (5), and the upper end of the internal air port (5) is provided with an outer edge (51) facing the external air port (4), the external air port (4) is connected to the air inlet cavity of the air inlet (2) through a fine hole (41), and the fine hole (41) is located directly below the outer edge (51), an opening groove (6) is provided on the side wall of the burner body (1), and the opening groove (6) is connected to the external air port (4), an air channel (52) is provided in the internal air port (5), and one end of the air channel (52) passes through the upper end of the internal air port (5), and the other end of the air channel (52) passes through the side wall of the burner body (1), and the internal air port (5) is connected to the air inlet cavity of the air inlet (2) through a main air hole (53).

2. The triple oxygen mixing furnace head according to claim 1, characterized in that: A plurality of injection ports (3) are provided.

3. The triple oxygen mixing furnace head according to claim 1 is characterized in that: The external air outlet (4) of the injection port (3) is connected via a notch groove (31).

4. The triple oxygen mixing furnace head according to claim 3 is characterized in that: The air passage (52) is L-shaped.

5. The triple oxygen mixing furnace head according to claim 3 is characterized in that: The main air holes (53) are arranged around the air channel (52).

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