Fuel nozzle for double-rotation premixing burner

Abstract

The utility model relates to the technical field of double-rotation premixing combustors, and discloses a fuel nozzle for a double-rotation premixing combustor. Comprising a double-rotation premixing burner connecting pipeline and further comprises a mounting ring arranged on one side of the double-rotation premixing burner connecting pipeline, a fuel nozzle body is arranged on one side of the mounting ring, an annular groove is formed in one side of the mounting ring, and clamping grooves are formed in the top and the bottom of one side of the annular groove. When a user needs to install the fuel nozzle body, a first clamping block is aligned with a clamping groove to be inserted and then rotates by half circle around an annular groove, at the moment, a connecting plate can drive a first toothed plate to align with an inner cavity of a positioning shell to move, then a push plate is pressed to enable a push rod to drive a second toothed plate to extrude a spring set to move, and then the first toothed plate is completely inserted into the positioning shell; and then the push plate is loosened, the second toothed plate is clamped to the surface of the first toothed plate through resetting of the spring set, so that the effect of quick mounting is achieved, and the mounting and dismounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-swirl premixing burners, in particular to a fuel nozzle for a double-swirl premixing burner. Background Art

[0002] The double swirl premixing burner is a device used in combustion systems, usually used in industrial and commercial gas boilers, water heaters, hot air furnaces and other equipment. It uses premixed combustion technology to mix the fuel and air evenly in the burner to form a combustible gas. The "double swirl" refers to the two vortex structures designed inside the burner. By controlling the flow of fuel and air, the fuel and air are fully mixed and two vortex-shaped combustion areas are formed. The fuel nozzle for the double swirl premixing burner refers to a component installed on the burner for spraying fuel into the burner to mix with air and burn. This nozzle is usually designed to produce fine spray so that it can be better mixed with air to form a combustible gas. The double swirl premixing burner often uses a porous nozzle or a specially designed spray hole structure to ensure that the fuel can be evenly sprayed into the burner, thereby achieving sufficient premixed combustion.

[0003] The fuel nozzles currently used for dual-swirl premixed burners are installed by either threaded or clamp connections. Threaded connections usually take a long time to tighten or disassemble, which is very inconvenient, especially in a small working space, while clamp connections usually require additional components to ensure the firmness of the connection, which may increase the cost and complexity of installation. Utility Model Content

[0004] The utility model aims to provide a fuel nozzle for a double-swirl premixing burner to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuel nozzle for a double-swirl premixing burner, comprising a double-swirl premixing burner connecting pipe, and also comprising: a mounting ring arranged on one side of the double-swirl premixing burner connecting pipe, a fuel nozzle body is arranged on one side of the mounting ring, an annular groove is opened on one side of the mounting ring, and a clamping groove is opened on the top and bottom of one side of the annular groove; a positioning shell is arranged on one side of the mounting ring, the number of the positioning shells is two, a connecting plate is fixedly connected to the surface of the fuel nozzle body, the number of the connecting plates is two, a first tooth plate is fixedly connected to one side of the connecting plate, and a mounting piece is arranged in the inner cavity of the positioning shell.

[0006] Preferably, the top and the bottom of the surface of the fuel nozzle body are both fixedly connected with a first clamping block, and the surface of the first clamping block is slidably connected to the inner cavity of the annular groove.

[0007] Preferably, a reinforcement plate is fixedly connected to one side of the positioning shell, and a side of the reinforcement plate close to the mounting ring is fixedly connected to the mounting ring.

[0008] Preferably, the mounting member includes a spring group, one side of the spring group is fixedly connected to the inner wall of the positioning shell, the other side of the spring group is fixedly connected to a second tooth plate, the side of the second tooth plate away from the spring group is fixedly connected to a push rod, and one side of the push rod passes through the outside of the positioning shell and is fixedly connected to a push plate.

[0009] Preferably, a sliding sleeve is fixedly connected to one side of the second tooth plate, a sliding rod is provided in the inner cavity of the sliding sleeve, and both sides of the sliding rod are fixedly connected to the inner wall of the positioning shell.

[0010] Preferably, a limiting ring is sleeved on the surface of the push rod, and a side of the limiting ring close to the positioning shell is fixedly connected to the positioning shell.

[0011] Preferably, a second spring is fixedly connected to the bottom of the inner cavity of the positioning shell, and a movable plate is fixedly connected to the top of the second spring.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] When the user needs to install the fuel nozzle body of the utility model, first the first clamping block is aligned with the clamping slot and inserted, and then rotated half a circle around the annular groove. At this time, the connecting plate will drive the first tooth plate to align with the inner cavity of the positioning shell and move, and then the push plate is pressed to make the push rod drive the second tooth plate to squeeze the spring group to move, and then the first tooth plate is completely inserted into the positioning shell, and then the push plate is loosened, and the second tooth plate is clamped on the surface of the first tooth plate by relying on the spring group to reset, so as to achieve the effect of quick installation and improve the efficiency of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a fuel nozzle for a double-swirl premixed burner provided by the utility model;

[0015] Figure 2 This is a schematic diagram of the unfolded structure of the fuel nozzle body provided by the utility model;

[0016] Figure 3 A schematic diagram of the structure of the mounting piece provided by the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the positioning shell provided by the utility model.

[0018] In the figure: 1. double-swirl premix burner connecting pipe; 2. mounting ring; 3. fuel nozzle body; 4. annular groove; 5. clamping groove; 6. positioning shell; 7. connecting plate; 8. first tooth plate; 9. mounting part; 901. spring group; 902. second tooth plate; 903. push rod; 904. push plate; 905. sliding sleeve; 906. sliding rod; 907. limiting ring; 10. first clamping block; 11. reinforcement plate; 12. second spring; 13. movable plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 As shown, a fuel nozzle for a double-swirl premixing burner includes a double-swirl premixing burner connecting pipe 1, and also includes: a mounting ring 2 arranged on one side of the double-swirl premixing burner connecting pipe 1, a fuel nozzle body 3 is arranged on one side of the mounting ring 2, an annular groove 4 is opened on one side of the mounting ring 2, and a clamping groove 5 is opened on the top and bottom of one side of the annular groove 4; a positioning shell 6 is arranged on one side of the mounting ring 2, the number of the positioning shells 6 is two, the surface of the fuel nozzle body 3 is fixedly connected with a connecting plate 7, the number of the connecting plates 7 is two, one side of the connecting plate 7 is fixedly connected with a first tooth plate 8, and the inner cavity of the positioning shell 6 is provided with a mounting member 9.

[0021] refer to Figure 2 and Figure 4 As shown, the top and bottom of the surface of the fuel nozzle body 3 are fixedly connected with the first block 10, the surface of the first block 10 is slidably connected to the inner cavity of the annular groove 4, a reinforcement plate 11 is fixedly connected to one side of the positioning shell 6, the side of the reinforcement plate 11 close to the mounting ring 2 is fixedly connected to the mounting ring 2, a second spring 12 is fixedly connected to the bottom of the inner cavity of the positioning shell 6, and a movable plate 13 is fixedly connected to the top of the second spring 12.

[0022] It should be noted that: the first clamping block 10 is used to limit the fuel nozzle body 3, the fixed connection between the reinforcing plate 11 and the mounting ring 2 plays a role in reinforcing the positioning shell 6, and the cooperation of the second spring 12 and the movable plate 13 facilitates the auxiliary ejection of the first clamping block 10.

[0023] refer to Figure 2 and Figure 3As shown, the mounting member 9 includes a spring group 901, one side of the spring group 901 is fixedly connected to the inner wall of the positioning shell 6, the other side of the spring group 901 is fixedly connected to a second tooth plate 902, the side of the second tooth plate 902 away from the spring group 901 is fixedly connected to a push rod 903, one side of the push rod 903 penetrates to the outside of the positioning shell 6 and is fixedly connected to a push plate 904, one side of the second tooth plate 902 is fixedly connected to a sliding sleeve 905, the inner cavity of the sliding sleeve 905 is provided with a sliding rod 906, both sides of the sliding rod 906 are fixedly connected to the inner wall of the positioning shell 6, a limiting ring 907 is sleeved on the surface of the push rod 903, and the limiting ring 907 is fixedly connected to the positioning shell 6 on the side close to the positioning shell 6.

[0024] It should be noted that when the user needs to disassemble the fuel nozzle body 3, first press the push plate 904 to drive the push rod 903 to move in the inner cavity of the limiting ring 907, and at the same time move the second tooth plate 902. When the second tooth plate 902 moves, it will drive the sliding sleeve 905 to move on the surface of the sliding rod 906 to squeeze the spring group 901, and then the first tooth plate 8 is released from the restriction, and then the fuel nozzle body 3 can be rotated to make the first tooth plate 8 detach from the inner cavity of the positioning shell 6, thereby achieving the effect of convenient disassembly.

[0025] Working principle: When the user needs to install the fuel nozzle body 3, first align the first clamping block 10 with the clamping slot 5 and insert it, then rotate it half a circle around the annular groove 4. At this time, the connecting plate 7 will drive the first tooth plate 8 to align with the inner cavity of the positioning shell 6 and move it. Then press the push plate 904 to make the push rod 903 drive the second tooth plate 902 to squeeze the spring group 901 to move, and then completely insert the first tooth plate 8 into the positioning shell 6, and then loosen the push plate 904. Relying on the spring group 901 to reset, the second tooth plate 902 is clamped on the surface of the first tooth plate 8, so as to achieve the effect of quick installation. When the user needs to disassemble the fuel nozzle body 3, First, press the push plate 904 to drive the push rod 903 to move in the inner cavity of the limiting ring 907, and at the same time move the second tooth plate 902. When the second tooth plate 902 moves, it will drive the sliding sleeve 905 to move on the surface of the sliding rod 906 to squeeze the spring group 901, and then the first tooth plate 8 will be released from the restriction. At the same time, the second spring 12 will drive the movable plate 13 to reset, and assist the first tooth plate 8 to pop out. Then, the fuel nozzle body 3 can be rotated to make the first tooth plate 8 disengage from the inner cavity of the positioning shell 6, and then the first clamping block 10 can be rotated into the clamping slot 5, and then the fuel nozzle body 3 can be taken out, so as to achieve the effect of convenient disassembly.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fuel nozzle for a double swirl premixing burner, comprising a double swirl premixing burner connecting pipe (1), characterized in that: Also includes: A mounting ring (2) is arranged on one side of a dual-swirl premixing burner connecting pipe (1), a fuel nozzle body (3) is arranged on one side of the mounting ring (2), an annular groove (4) is provided on one side of the mounting ring (2), and a clamping groove (5) is provided on the top and bottom of one side of the annular groove (4); A positioning shell (6) is arranged on one side of the mounting ring (2), the number of the positioning shells (6) is two, a connecting plate (7) is fixedly connected to the surface of the fuel nozzle body (3), the number of the connecting plates (7) is two, one side of the connecting plate (7) is fixedly connected to a first tooth plate (8), and the inner cavity of the positioning shell (6) is provided with a mounting member (9).

2. A fuel nozzle for a double swirl premixing burner according to claim 1, characterized in that: The top and bottom of the surface of the fuel nozzle body (3) are both fixedly connected with a first clamping block (10), and the surface of the first clamping block (10) is slidably connected to the inner cavity of the annular groove (4).

3. A fuel nozzle for a double swirl premixing burner according to claim 1, characterized in that: A reinforcing plate (11) is fixedly connected to one side of the positioning shell (6), and a side of the reinforcing plate (11) close to the mounting ring (2) is fixedly connected to the mounting ring (2).

4. A fuel nozzle for a double swirl premixing burner according to claim 1, characterized in that: The mounting member (9) comprises a spring group (901), one side of the spring group (901) is fixedly connected to the inner wall of the positioning shell (6), the other side of the spring group (901) is fixedly connected to a second tooth plate (902), the side of the second tooth plate (902) away from the spring group (901) is fixedly connected to a push rod (903), and one side of the push rod (903) passes through the outer side of the positioning shell (6) and is fixedly connected to a push plate (904).

5. A fuel nozzle for a double swirl premixing burner according to claim 4, characterized in that: A sliding sleeve (905) is fixedly connected to one side of the second tooth plate (902), a sliding rod (906) is provided in the inner cavity of the sliding sleeve (905), and both sides of the sliding rod (906) are fixedly connected to the inner wall of the positioning shell (6).

6. A fuel nozzle for a double swirl premixing burner according to claim 4, characterized in that: A limiting ring (907) is sleeved on the surface of the push rod (903), and the limiting ring (907) is fixedly connected to the positioning shell (6) on a side close to the positioning shell (6).

7. A fuel nozzle for a double swirl premixing burner according to claim 1, characterized in that: A second spring (12) is fixedly connected to the bottom of the inner cavity of the positioning shell (6), and a movable plate (13) is fixedly connected to the top of the second spring (12).

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