Oil gun atomizing sheet

Abstract

The utility model relates to the technical field of boiler ignition, in particular to an oil gun atomizing piece which comprises an atomizing piece body, a spinning disc and a flow dividing disc. The spinning disk is arranged between the atomizing sheet and the shunting disk; a first center hole is formed in the center of the atomization piece, and the diameter of the first center hole is 3.1 mm-3. 2mm. Pressure oil is converged into the corresponding annular grooves through the flow dividing holes in the flow dividing disc, tangentially flows into the rotational flow chamber through the rotary cutting grooves in the rotational flow piece to generate strong rotation, finally enters the atomization piece and is ejected out through the spraying hole in the center of the atomization piece, and an oil film in a turbulent flow state is formed when the oil flows out of the spraying opening. The oil film and external gas have a large relative movement speed and make contact with the surface, so that the oil film can overcome surface tension to be broken into oil mist formed by fine oil drops, the diameter of a center hole of the atomization piece is reduced, the atomization effect is better, and in the same ignition time, it is guaranteed that an oil gun is successfully ignited at a time, and meanwhile the fuel oil amount is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler ignition, in particular to an oil gun atomizing sheet. Background Art

[0002] Burner is a general term for devices that spray fuel and air in a certain way for mixed combustion. It is a key device of the boiler. In order to ensure the combustion effect of the fuel, the fuel entering the boiler furnace must be atomized first.

[0003] Atomization is generally divided into pressurized atomization and negative pressure atomization. Pressurized atomization is to extract the fuel oil and pressurize it through an oil pump, and then spray it out in a mist form from the mixed air flow duct at one end of the burner oil gun atomization mixing chamber and the oil gun nozzle into the boiler furnace for combustion; negative pressure atomization is that the high-flow air output by the air compressor and other devices continuously flows through the upper end of the fuel pipe of the burner oil gun through the air pipe, generating negative pressure at the upper end of the fuel pipe, and then the fuel in the fuel tank is continuously sprayed out from the nozzle of the fuel pipe for initial atomization, and then the initially atomized fuel is sprayed out from the mixed air flow duct at one end of the burner oil gun atomization mixing chamber and the oil gun nozzle into the boiler furnace for combustion.

[0004] When the ignition system of a thermal power plant needs to be put into operation due to auxiliary machine failures during the boiler ignition process and unstable combustion, the oil gun fails to ignite due to mechanical and electronic control reasons. This problem causes the boiler to reduce load at the least and the boiler to extinguish at the worst. A systematic analysis is conducted on the unstable operation and many failures of the boiler ignition system. The size and specifications of the atomizer directly affect the atomization effect of the oil gun. Utility Model Content

[0005] In order to overcome the problems existing in the prior art, the utility model aims to provide an oil gun atomizing sheet.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil gun atomizer, comprising an atomizer, a swirl plate and a diverter plate; the swirl plate is arranged between the atomizer and the diverter plate; a first center hole is arranged at the center of the atomizer, a swirl cavity and a second center hole are arranged on the swirl plate, the swirl cavity is a conical structure, and the swirl cavity gradually shrinks to the second center hole, the positions of the first center hole and the second center hole match, and the diameter of the first center hole is 3.1mm-3.2mm.

[0007] In actual use, the oil rotates to the second center hole through the rotary cut groove, and is sprayed out from the first center hole after passing through the second center hole.

[0008] The utility model is further configured as follows: an annular groove is arranged on the diverter plate, and a plurality of diverter holes are arranged in the annular groove in a circumferential direction.

[0009] The utility model is further configured as follows: an annular oil groove and a rotary cutting groove are provided on the swirl plate; the swirl chamber is provided in the middle of the swirl plate, one end of the rotary cutting groove is connected to the annular oil groove, and the other end is connected to the swirl chamber, and the swirl chamber gradually shrinks from the end connected to the rotary cutting groove to the second center hole.

[0010] The utility model is further configured as follows: the annular groove corresponds to the annular oil groove. A diverter hole is arranged in the annular groove. When in actual use, the oil flows into the annular oil groove on the swirl plate through the diverter hole on the annular groove.

[0011] The utility model is further configured as follows: the width of the rotary cut groove is 2mm-3mm, and the depth is 2mm-3mm.

[0012] The utility model is further configured as follows: a second center hole is also provided on the swirl sheet; the swirl cavity is a conical structure, and the swirl cavity gradually shrinks from one end connected to the swirl cutting groove to the second center hole.

[0013] The utility model is further configured as follows: the diameters of the atomizing sheet, the swirl sheet and the diverter plate are 43mm-45mm.

[0014] The utility model is further configured as follows: the oil gun atomizer plate also includes a clamping nut, a placement groove is arranged inside the clamping nut, the atomizer plate, the swirl plate and the diverter plate are all arranged in the placement groove, and the oil gun atomizer plate is installed at the oil gun head through the clamping nut.

[0015] The utility model is further configured as follows: a mist outlet is also provided on the clamping nut, and the position of the mist outlet corresponds to the position of the first center hole.

[0016] The beneficial effects of the above technical solution of the utility model are as follows:

[0017] In the utility model, the pressurized oil passes through the diverter holes on the diverter plate, merges into the corresponding annular groove, and then flows into the swirl chamber tangentially through the swirl groove on the swirl plate, generates strong rotation, and finally enters the atomizing plate, and is ejected through the central spray hole of the atomizing plate. When the oil flow just leaves the spray hole, an oil film in a turbulent state is formed. There is a large relative motion speed between the oil film and the external gas and the contact surface, so that the oil film can overcome the surface tension and break into oil mist formed by fine oil droplets, reduce the diameter of the central hole of the atomizing plate, and make the atomization effect better. Within the same ignition time, it is guaranteed that the oil gun ignites successfully once and saves fuel at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 Schematic diagram of this atomizer.

[0020] Figure 2 Schematic diagram of the diverter plate.

[0021] Figure 3 Schematic diagram of the swirl plate.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 10. Atomizing plate, 11. First center hole, 20. Diverter plate, 21. Annular groove, 22. Diverter hole, 30. Swirl plate, 31. Annular oil groove, 32. Rotary cut groove, 33. Swirl cavity, 34. Second center hole. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following is a clear and complete description of the technical solution of the present invention in conjunction with the drawings of the present invention. Based on the embodiments of the present invention, other similar embodiments obtained by ordinary technicians in the field without creative work should all fall within the scope of protection of the present invention. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the creation of the present invention.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0027] Example:

[0028] like Figure 1-Figure 3As shown, a preferred embodiment of the utility model is an oil gun atomizer sheet, comprising an atomizer sheet 10, a swirl sheet 30 and a diverter plate 20; the swirl sheet 30 is arranged between the atomizer sheet 10 and the diverter plate 20; a first center hole 11 is arranged at the center of the atomizer sheet 10. In this embodiment, the diameter of the first center hole 11 is 3.2 mm, and the diameters of the atomizer sheet 10, the swirl sheet 30 and the diverter plate 20 are 44 mm.

[0029] The diverter plate 20 is provided with an annular groove 21 , and a plurality of diverter holes 22 are arranged in the annular groove 21 in a circumferential direction.

[0030] The swirl plate 30 is provided with an annular oil groove 31, a rotary cut groove 32 and a swirl chamber 33; the swirl chamber 33 is provided in the middle of the swirl plate 30, the rotary cut groove 32 is tangent to the swirl chamber 33, the rotary cut groove 32 has a width of 3 mm and a depth of 2.5 mm. One end of the rotary cut groove 32 is connected to the annular oil groove 31, and the other end is connected to the swirl chamber 33. The annular groove 21 corresponds to the position of the annular oil groove 31.

[0031] The swirl chamber 33 is a conical structure, and the swirl chamber 33 gradually shrinks from one end connected to the rotary cutting groove 32 to the second center hole 34. The first center hole 11 and the second center hole 34 are located correspondingly. After the oil rotates through the swirl groove, it enters the atomizing plate 10 through the second center hole 34 and is sprayed out from the first center hole 11.

[0032] The oil gun atomizer plate also includes a clamping nut, the interior of which is provided with a placement groove, the atomizer plate 10, the swirl plate 30 and the diverter plate 20 are all provided in the placement groove, and the oil gun atomizer plate is installed at the oil gun head through the clamping nut. A mist outlet is provided at the bottom of the placement groove, and the position of the mist outlet corresponds to the position of the first center hole 11; a thread is provided at the notch of the placement groove for threaded connection with the atomizer oil gun.

[0033] In actual application, firstly, the diverter disc 20, the swirl sheet 30 and the atomizing sheet 10 are sequentially placed at the muzzle of the mechanical atomizing oil gun; wherein one end of the swirl sheet 30 with the swirl cut groove 32 is close to the diverter disc 20, and one end of the swirl sheet 30 with the second center hole 34 is close to the atomizing sheet 10. Then, the clamping thread is installed so that the placement groove of the clamping nut can accommodate the diverter disc 20, the swirl sheet 30 and the atomizing sheet 10, and the clamping nut is connected with the atomizing oil gun through the thread at the notch, so that the diverter disc 20, the swirl sheet 30 and the atomizing sheet 10 are fixed at the muzzle of the atomizing oil gun.

[0034] The oil pump pressure was adjusted to 2.8MPa, and the actual parameters of the mechanical atomizing oil gun were recorded. The outer diameter of the atomizing plate was φ44mm; the width / depth of the rotary cut groove was 3mm / 2.5mm; the atomizing angle was 9°; the diameter of the center hole of the atomizing plate was φ3.2mm, and the oil gun output was 1000KG / H. In the utility model, the pressurized oil passes through the diverter hole 22 on the diverter plate 20 and merges into the corresponding annular oil groove 31, and then flows tangentially into the swirl chamber 33 through the rotary cut groove 32 on the swirl plate 30, generating a strong rotation, and finally enters the atomizing plate 10, and is ejected through the first center hole 11 on the atomizing plate 10. When the oil just leaves the nozzle, a turbulent oil film is formed. There is a large relative motion speed between the oil film and the external gas and it contacts the surface, so that the oil film can overcome the surface tension and break into oil mist formed by fine oil droplets. The utility model reduces the diameter of the center hole of the atomizing sheet to 3.2 mm, so that the atomizing effect is better, and within the same ignition time, the oil gun is guaranteed to ignite successfully once and the amount of fuel is saved at the same time.

[0035] Finally, it should be noted that the above-mentioned embodiments only express one or several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An oil gun atomizer, characterized in that: It includes an atomizing sheet, a swirl sheet and a diverter plate; the swirl sheet is arranged between the atomizing sheet and the diverter plate; a first center hole is arranged in the center of the atomizing sheet, and a swirl cavity and a second center hole are arranged on the swirl sheet. The swirl cavity is a conical structure, and the swirl cavity gradually shrinks to the second center hole. The positions of the first center hole and the second center hole are matched, and the diameter of the first center hole is 3.1mm-3.2mm.

2. The oil gun atomizer according to claim 1, characterized in that: The diverter plate is provided with an annular groove, and a plurality of diverter holes are arranged in the annular groove in a circumferential direction.

3. The oil gun atomizer according to claim 2, characterized in that: The swirl plate is provided with an annular oil groove and a rotary cutting groove; the swirl chamber is arranged in the middle of the swirl plate, one end of the rotary cutting groove is connected to the annular oil groove, and the other end is connected to the swirl chamber, and the swirl chamber gradually shrinks from the end connected to the rotary cutting groove to the second center hole.

4. The oil gun atomizer according to claim 3, characterized in that: The annular groove corresponds to the position of the annular oil groove.

5. The oil gun atomizer according to claim 3, characterized in that: The rotary cut groove has a width of 2mm-3mm and a depth of 2mm-3mm.

6. The oil gun atomizer according to claim 1, characterized in that: The diameters of the atomizing sheet, swirl sheet and diverter plate are 43 mm to 45 mm.

7. The oil gun atomizer according to claim 1, characterized in that: The oil gun atomizer plate also includes a clamping nut, a placement groove is arranged inside the clamping nut, the atomizer plate, the swirl plate and the diverter plate are all arranged in the placement groove, and the oil gun atomizer plate is installed at the oil gun head through the clamping nut.

8. The oil gun atomizer according to claim 7, characterized in that: The clamping nut is also provided with a mist outlet, and the position of the mist outlet corresponds to the position of the first center hole.

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