CN214275696U - Mechanical atomizing oil gun - Google Patents

Abstract

The utility model provides a mechanical type atomizing oil gun, including overcoat, compressed gas sleeve pipe, oil pipe, expand and flow awl, spinning disk and atomizing piece, the overcoat entrance point cover is established at oil pipe's exit end, and compressed gas sleeve pipe suit is at oil pipe's entrance point, expands and flows the awl and establish the port department at the oil pipe exit end, and the spinning disk is fixed inside the overcoat, and the toper nozzle opening has been seted up at the atomizing piece middle part, about the toper nozzle opening both ends respectively with draw and cut nozzle and spinning disk intercommunication. The utility model has the advantages that: the utility model discloses a compressed gas sleeve pipe and oil pipe carry gas and oil high pressure to the whirl piece respectively, then make the oil-gas mixture and change into rotatory momentum through the whirl piece, the oil gas that is rotating strongly is torn into oil mist form liquid drop when the toper nozzle department of flowing through, then recycles the Laval nozzle and realizes that the supersonic speed flows, makes oil mist form liquid drop rub once more with relatively static air, tear, thoroughly becomes vaporific to the solution influences the problem of atomization effect because of the oil pressure is unstable.

Description

Mechanical atomizing oil gun

Technical Field

The utility model relates to a liquid fuel atomization technical field especially relates to a mechanical type atomizing oil gun.

Background

In the prior art, the fuel oil burner is mainly composed of a fuel oil nozzle (i.e. an oil gun) and an air distributor. The fuel oil is atomized into fine oil mist particles through the oil gun through the oil inlet pipe and then sprayed into the furnace for combustion, and the air distributor provides air required by combustion. In order to fully burn the fuel oil, the atomization quality of the fuel oil must be improved, and the oil mist and the combustion-supporting air should be fully mixed to form a good combustion air dynamic field. It is readily apparent that the quality of the atomization and the mixing regime are the main factors affecting the oil combustion.

At present, oil guns widely used by oil burners in China are mainly divided into two main types of oil guns working on a single atomization principle, namely mechanical atomization and medium (steam or compressed air) atomization. Due to the defects of the principle and the structure of the two types of oil guns and the poor quality of fuel oil in China, the two types of oil guns generally have the problems of large atomization particle size, incomplete combustion, difficult direct ignition of heavy and residual oil in a cooling furnace, serious coking and blockage of the oil guns, direct influence on the operation of related matched equipment by incompletely combusted oil drops and the like, and cannot meet the requirements of efficient and sufficient combustion, energy conservation and emission reduction. At present, oil pressure is under 1.5MPa, and the oil pressure is unstable, causes the atomizing jet distance to be less than 4 meters, and the atomized particles is greater than 100um, and oil gun atomizing quality is not high, and fuel oil burning is not abundant, for the normal temperature rise and the technological requirement of guaranteeing to use the thermal equipment, the enterprise only has to increase the fuel sprayer, has directly increased the production and the use cost of enterprise, causes the energy waste.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a mechanical atomizing oil gun.

The embodiment of the utility model provides a mechanical atomizing oil gun, which comprises a jacket, a compressed air sleeve, an oil pipe, a flow expansion cone, a spinning disk and an atomizing disk, wherein a cutting nozzle is arranged at the outlet of the jacket, and the inlet end is sleeved at the outlet end of the oil pipe, the compressed gas sleeve is sleeved at the inlet end of the oil pipe, and is detachably connected with the outer sleeve, the flow expansion cone is arranged at the port of the outlet end of the oil pipe, the cone top of the flow expansion cone faces the inlet end of the oil pipe, the cone bottom of the flow expansion cone is smaller than the pipe diameter of the outlet end of the oil pipe, and an annular oil nozzle is formed between the cone bottom of the flow expansion cone and the oil pipe, the spinning disk is fixed in the outer sleeve, the atomizing disk is positioned between the spinning disk and the pull valve nozzle, and a conical oil spray hole is formed in the middle of the atomizing plate, and the left end and the right end of the conical oil spray hole are respectively communicated with the pull-cutting nozzle and the spinning plate.

Furthermore, the middle part of the spinning disk is provided with a spinning chamber, the periphery of the spinning disk is uniformly provided with a plurality of tangential grooves, and the tangential grooves are communicated with the spinning chamber.

Further, the compressed air sleeve pipe is a cylindrical sleeve pipe, the outer wall of the left end of the compressed air sleeve pipe is provided with an external thread, the outer wall of the right side of the external thread is provided with a limiting boss, and the right end of the limiting boss is provided with a compressed air inlet.

Furthermore, a compressed air inlet of the compressed air sleeve is connected with a compressed air main pipe, and an inlet end of the oil pipe is connected with a fuel oil main pipe.

Furthermore, the outer side wall of the atomization sheet is provided with a first connecting step, and the inner side of the outer sleeve is provided with a second connecting step matched with the first connecting step.

Further, the inner diameter of the outlet of the conical oil spray hole is the same as that of the inlet of the nozzle of the drawing valve , and the inclination of the outlet of the conical oil spray hole is the same as that of the inlet of the nozzle of the drawing valve .

Furthermore, the right side of the outer sleeve is provided with an internal thread.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the utility model discloses a mechanical type atomizing oil gun passes through the compressed gas sleeve pipe with oil pipe carries gas and oil high pressure to the spinning disk on respectively, then passes through on the spinning disk the tangential groove gets into the spinning chamber, the tangential groove with the spinning chamber makes the oil-gas mixture and becomes rotatory momentum, obtains corresponding rotation strength, and the oil gas that is violently rotatory is flowing through when toper nozzle opening department, overcome the surface tension of oil under the centrifugal force effect, torn into oil mist form liquid drop, then recycle the Laval nozzle realizes that the supersonic speed flows, and very big increase the speed difference of oil mist form liquid drop and air on every side, so oil mist form liquid drop and relative static air rub once more, tear, thoroughly become vaporific to the solution influences the problem of atomization effect because of the oil pressure is unstable.

Drawings

Fig. 1 is a schematic structural view of the mechanical atomizing oil gun of the present invention.

Fig. 2 is a schematic structural view of the swirl plate 5 in fig. 1.

In the figure: the device comprises a shell 1, a compressed gas sleeve 2, an oil pipe 3, a flow expansion cone 4, a swirl plate 5, an atomization plate 6, a Laval nozzle 7, a conical oil injection hole 8, a swirl chamber 9, a tangential groove 10, a limiting boss 11, a compressed gas inlet 12, a first connecting step 13 and a second connecting step 14.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present invention provides a mechanical atomizing oil gun, which includes a casing 1, a compressed air casing 2, an oil pipe 3, a flow expanding cone 4, a swirl plate 5 and an atomizing plate 6.

The outlet of the outer sleeve 1 is provided with a pull valve nozzle 7, the inlet end of the outer sleeve is sleeved at the outlet end of the oil pipe 3, and the right side of the outer sleeve 1 (namely, the inlet end of the outer sleeve 1) is provided with internal threads in the embodiment.

Compressed gas sleeve pipe 2 suit is in oil pipe 3's entrance point, and it with the connection can be dismantled to overcoat 1, specifically, compressed gas sleeve pipe 2 is cylindrical sleeve pipe, and its left end outer wall is equipped with the external screw thread, thereby compressed gas sleeve pipe 2 with 1 threaded connection of overcoat, in this embodiment external screw thread right side outer wall still is equipped with spacing boss 11, thereby passes through spacing boss 11 is right compressed gas sleeve pipe 2 with the connection of overcoat 1 is carried on spacingly. The utility model discloses in 11 right-hand members of spacing boss are equipped with compressed air import 12, compressed air sleeve pipe 2 compressed air import 12 and the female union coupling of compressed air, oil pipe 3's entrance point and the female union coupling of fuel.

Expand and flow awl 4 and establish the port department of oil pipe 3 exit end, and make expand the vertex of a cone orientation of flow awl 4 the entrance point of oil pipe 3, expand the awl end of flow awl 4 and be less than the pipe diameter of oil pipe 3's exit end, just expand the cone end of flow awl 4 with form annular oil spout between the oil pipe 3.

The swirl plate 5 is fixed inside the outer sleeve 1, the atomizing plate 6 is located between the swirl plate 5 and the cutting nozzle 7, a tapered oil spray hole 8 is formed in the middle of the atomizing plate 6, the left end and the right end of the tapered oil spray hole 8 are respectively communicated with the cutting nozzle 7 and the swirl plate 5, a swirl chamber 9 is formed in the middle of the swirl plate 5 in the embodiment, a plurality of tangential grooves 10 are uniformly formed in the periphery of the swirl chamber 9, and each tangential groove 10 is communicated with the swirl chamber 9, so that the compressed air sleeve 2 and the oil pipe 3 are communicated with the cutting nozzle 7 sequentially through each tangential groove 10, the swirl chamber 9 and the tapered oil spray hole 8, and thus when air and oil are respectively conveyed to the swirl plate 5 through the compressed air sleeve 2 and the oil pipe 3, oil and air can be primarily mixed, and then enter the swirl chamber 9 through the tangential grooves 10 on the swirl plate 5, under the action of the tangential groove 10 and the swirl chamber 9, oil and gas are mixed again and are converted into rotary momentum, corresponding rotary strength is obtained, when the strongly rotating oil gas flows through the conical oil spray hole 8, the surface tension of the oil is overcome under the action of centrifugal force, the oil gas is torn into oil mist-shaped liquid drops, then the Laval nozzle 7 is used for realizing supersonic flow, the speed difference between micro oil drops and ambient air is greatly increased, and the oil mist-shaped liquid drops and the relatively static air are rubbed and torn again to form mist completely.

The utility model discloses in 6 lateral walls of atomizing piece are equipped with first connection step 13, 1 inboard of overcoat be equipped with step 14 is connected to first connection step 13 assorted second, thereby pass through step 14 is connected with right in order to the second atomizing piece 6 is installed the location. The inner diameter of the outlet of the tapered oil spray hole 8 is the same as the inner diameter of the inlet of the nozzle 7 of the drawing valve , and the inclination of the outlet of the tapered oil spray hole 8 is the same as the inclination of the inlet of the nozzle 7 of the drawing valve , so that smooth transition connection between the inclination of the outlet of the tapered oil spray hole 8 and the inlet of the nozzle 7 of the drawing valve is ensured.

The mechanical atomizing oil gun of the utility model respectively conveys gas and oil to the vortex sheet 5 through the compressed gas sleeve 2 and the oil pipe 3, then enters the swirl chamber 9 through the tangential grooves 10 on the swirl plate 5, the oil and the gas are mixed by the tangential grooves 10 and the swirl chamber 9 and are converted into rotary momentum, corresponding rotary strength is obtained, when the oil gas which is strongly rotated flows through the conical oil injection hole 8, the surface tension of oil is overcome under the action of centrifugal force, the oil is torn into oil mist-shaped liquid drops, then supersonic flow is realized by using the Laval nozzle 7, the speed difference between the oil mist-shaped liquid drops and the surrounding air is greatly increased, and the oil mist-shaped liquid drops and the relatively static air rub and tear again to form mist completely, so that the problem that the atomization effect is influenced due to unstable oil pressure is solved.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. A mechanical atomizing oil gun, characterized in that: comprises a jacket, a compressed air sleeve, an oil pipe, a flow expansion cone, a spinning disk and an atomizing disk, wherein a pull valve nozzle is arranged at the outlet of the jacket, and the inlet end is sleeved at the outlet end of the oil pipe, the compressed gas sleeve is sleeved at the inlet end of the oil pipe, and is detachably connected with the outer sleeve, the flow expansion cone is arranged at the port of the outlet end of the oil pipe, the cone top of the flow expansion cone faces the inlet end of the oil pipe, the cone bottom of the flow expansion cone is smaller than the pipe diameter of the outlet end of the oil pipe, and an annular oil nozzle is formed between the cone bottom of the flow expansion cone and the oil pipe, the spinning disk is fixed in the outer sleeve, the atomizing disk is positioned between the spinning disk and the pull valve nozzle, and a conical oil spray hole is formed in the middle of the atomizing plate, and the left end and the right end of the conical oil spray hole are respectively communicated with the pull-cutting nozzle and the spinning plate.

2. A mechanical atomizing oil gun as set forth in claim 1, wherein: the cyclone plate is characterized in that a cyclone chamber is arranged in the middle of the cyclone plate, a plurality of tangential grooves are uniformly formed in the periphery of the cyclone plate, and the tangential grooves are communicated with the cyclone chamber.

3. A mechanical atomizing oil gun as set forth in claim 1, wherein: the compressed air sleeve pipe is cylindrical, and its left end outer wall is equipped with the external screw thread, external screw thread right side outer wall is equipped with spacing boss, just spacing boss right-hand member is equipped with the compressed air import.

4. A mechanical atomizing oil gun as set forth in claim 3, wherein: and a compressed air inlet of the compressed air sleeve is connected with a compressed air main pipe, and an inlet end of the oil pipe is connected with a fuel oil main pipe.

5. A mechanical atomizing oil gun as set forth in claim 1, wherein: the outer side wall of the atomization piece is provided with a first connecting step, and the inner side of the outer sleeve is provided with a second connecting step matched with the first connecting step.

6. A mechanical atomizing oil gun as set forth in claim 1, wherein: the inner diameter of the outlet of the conical oil spray hole is the same as that of the inlet of the nozzle of the drawing valve , and the inclination of the outlet of the conical oil spray hole is the same as that of the inlet of the nozzle of the drawing valve .

7. A mechanical atomizing oil gun as set forth in claim 3, wherein: and the right side of the outer sleeve is provided with an internal thread.

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