Spray head capable of preventing oil spray hole of high-energy ignition oil gun from being blocked

Abstract

A nozzle for preventing blockage of an oil spraying hole of a high-energy ignition oil gun comprises the spraying hole, a negative pressure cover, a guide cylinder A, a guide cylinder B, a thin steel frame and a base, the spraying hole is located in the center of the base, the inner side of the base is a curved surface bent by a certain angle, the negative pressure cover is of a circular truncated cone curved surface structure, one side of the negative pressure cover is fixedly connected with the base, and the other side of the negative pressure cover is fixedly connected with the base through the thin steel frame. The included angle between the negative pressure cover and the base in the vertical direction is 30 degrees, and the guide cylinder A and the guide cylinder B are fixedly connected with the negative pressure cover. The negative pressure cover is arranged to reduce the negative pressure area on the outer side of the spray head, and spray hole blockage caused by backflow of oil and fine particles is relieved; the flow direction of oil liquid is optimized through the flow guide cylinder A and the flow guide cylinder B, and meanwhile the negative pressure area on the outer side of the nozzle is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler ignition, in particular to a nozzle for preventing the oil spray holes of a high-energy ignition oil gun from being blocked. Background Art

[0002] In traditional power plant boilers and industrial furnaces, high-energy ignition oil guns are core components, and the nozzle is an essential element. Oil flows through the nozzle's central orifice into a high-speed rotating vortex chamber, generating centrifugal force. This force overcomes the oil's viscosity and surface tension, breaking it into fine droplets. Air flow around the nozzle is guided to form a specific flow field. Centrifugal force propels the oil droplets outward, atomizing the fuel. The atomized fuel then combines with the spark generated by the igniter, igniting the atomized fuel and forming a flame to start the device. Simultaneously, the air around the nozzle, driven by the high-speed oil droplets, creates a relatively low-pressure zone—a negative pressure zone. Because the pressure in this negative pressure zone is lower than the pressure outside the nozzle, it retracts fine particles from incomplete combustion and unburned atomized oil, causing blockage in the nozzle, impairing fuel atomization, and in severe cases, even causing carbon deposits in the nozzle.

[0003] The current solution is mainly to use steel wool to mechanically clean these fine particles. However, mechanical cleaning will damage the sealing of the nozzle, and the liquid may leak during the spraying process and drip inside the nozzle, resulting in a reduction in the amount of liquid sprayed. It will also make the distribution of the liquid uneven, affecting the atomization quality, and causing a large amount of fine particles and black smoke. Utility Model Content

[0004] In order to solve the defect that the oil spray hole of the existing high-energy ignition oil gun is easily blocked when in use, the purpose of the utility model is to provide a nozzle that prevents the oil spray hole of the high-energy ignition oil gun from being blocked.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution: a nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked, including a spray hole 1, a negative pressure cover 2, a guide tube A3, a guide tube B4, a thin steel frame 5, and a base 6.

[0006] The spray hole 1 is located at the center of the base 6, and the radius of the spray hole 1 is 2.5 mm. The inner side of the base 6 is a curved surface bent at a certain angle, and the radius of the base 6 is 22.5 mm.

[0007] The negative pressure cover 2 is a truncated cone curved structure. One side of the negative pressure cover 2 is fixed to the base 6, and the other side is fixed to the base 6 through a thin steel frame 5. The vertical angle between the negative pressure cover 2 and the base 6 is 30°. The negative pressure cover 2 is made of high silicon steel.

[0008] The guide tube A3 is a cylinder with an inner diameter of 10 mm and a height of 20 mm, and the guide tube B4 is a cylinder with an inner diameter of 30 mm and a height of 20 mm. The guide tubes A3 and B4 are fixed to the negative pressure cover 2 and are made of high silicon steel.

[0009] Compared with the existing ignition oil gun, the utility model has the following advantages.

[0010] The utility model discloses a nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked. The nozzle reduces the negative pressure area outside the nozzle by arranging a negative pressure cover 2, thereby alleviating the blockage of the spray hole 1 caused by the backflow of oil and fine particles.

[0011] The utility model discloses a nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked. The nozzle utilizes a guide tube A3 and a guide tube B4 to optimize the flow direction of the oil and simultaneously reduce the negative pressure area outside the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a main cross-sectional view of a nozzle for preventing the oil injection hole of a high-energy ignition oil gun from being blocked.

[0013] Figure 2 The utility model is a top view of a nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked. DETAILED DESCRIPTION

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle", "inside", "top", "bottom end", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, they can mean fixed connection, detachable connection, or integral connection; they can mean mechanical connection or electrical connection; they can mean direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] The present invention will be described in further detail below with reference to the accompanying drawings.

[0017] like Figure 1 Figure 2 As shown, the utility model provides a nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked, comprising a spray hole 1, a negative pressure cover 2, a guide tube A 3, a guide tube B4, a thin steel frame 5, and a base 6.

[0018] The spray hole 1 is located at the center of the base 6, and the radius of the spray hole 1 is 2.5 mm. The inner side of the base 6 is a curved surface bent at a certain angle, and the radius of the base 6 is 22.5 mm. Its function is to reduce the size of the negative pressure area and inhibit the backflow of atomized droplets and fine particles.

[0019] The negative pressure hood 2 is a truncated cone curved structure. One side of the negative pressure hood 2 is fixed to the base 6, and the other side is fixed to the base 6 through a thin steel frame 5. The vertical angle between the negative pressure hood 2 and the base 6 is 30°. The negative pressure hood 2 is made of high silicon steel. The negative pressure hood 2 is located in the negative pressure area. The negative pressure area is cut to reduce its range and strength, thereby reducing the suction force of the negative pressure area to suck back fine particles. The thin steel frame 5 welds the tail end of the negative pressure hood 2 to the base 6 to prevent the negative pressure hood 2 from being displaced due to the pressure of the oil flow and fixes the tail end of the negative pressure hood 2.

[0020] The guide tube A3 is a cylinder with an inner diameter of 10 mm and a height of 20 mm, and the guide tube B4 is a cylinder with an inner diameter of 30 mm and a height of 20 mm. The guide tube A3 and the guide tube B4 are fixedly connected to the negative pressure cover 2. The two guide tubes divide the oil input from the spray hole 1 into three parts, which can ensure that the oil is more stable during the flow process, reduce the formation of turbulence and eddy currents, reduce the resistance during the flow of the oil, and thus reduce the generation of negative pressure areas.

[0021] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0022] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked, comprising a nozzle (1), a negative pressure cover (2), a guide tube A (3), a guide tube B (4), a thin steel frame (5), and a base (6), characterized in that The spray hole (1) is located at the center of the base (6). The inner side of the base (6) is a curved surface bent at a certain angle. The negative pressure cover (2) is a truncated cone curved surface structure. One side of the negative pressure cover (2) is fixed to the base (6), and the other side is fixed to the base (6) through a thin steel frame (5). The vertical angle between the negative pressure cover (2) and the base (6) is 30°. The guide tube A (3) and the guide tube B (4) are fixed to the negative pressure cover (2).

2. A nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked according to claim 1, characterized in that The radius of the spray hole (1) is 2.5 mm.

3. The nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked according to claim 1, characterized in that The base (6) has a radius of 22.5 mm.

4. A nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked according to claim 1, characterized in that The negative pressure cover (2) is made of high silicon steel.

5. The nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked according to claim 1, characterized in that The guide tube A (3) is a cylinder with an inner diameter of 10 mm and a height of 20 mm, and the guide tube B (4) is a cylinder with an inner diameter of 30 mm and a height of 20 mm.

6. The nozzle for preventing the oil spray hole of a high-energy ignition oil gun from being blocked according to claim 1, characterized in that The guide tube A (3) and the guide tube B (4) are made of high silicon steel.

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