CN210688206U

CN210688206U - Mechanical atomization diesel spray gun

Info

Publication number: CN210688206U
Application number: CN201920509960.9U
Authority: CN
Inventors: 宋建存
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-06-05
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a mechanical atomization diesel spray gun, including the spray gun head, the axle center department of spray gun head seted up the deep hole, the arrangement direction of deep hole is unanimous with the extending direction of spray gun head, the deep hole end has seted up the branch oilhole along the vertical direction of deep hole axial direction line, the end of deep hole be provided with the atomizer, the atomizer periphery is provided with rather than the overcoat of closely laminating, the overcoat on seted up the jet orifice for fuel granule after the atomizing is more tiny, the burning is faster, and can provide the compressed air of capacity, guarantees quick abundant burning.

Description

Mechanical atomization diesel spray gun

Technical Field

The utility model relates to the technical field of machinery, concretely relates to mechanical atomization diesel spray gun.

Background

The cement rotary kiln fuel system generally adopts a simple mechanical gasification technology, and in the temperature rise process, because fuel is simply gasified and injected, the flame is longer, the temperature is not concentrated, the flame is unstable, and the fuel consumption is high. The cost of fuel oil consumed by the conventional rotary kiln is up to 15 ten thousand yuan per ignition heating, the rotary kiln is ignited and heated at least for more than 2 times per year, various faults such as mechanical, electrical and process faults can occur in the operation process, the rotary kiln needs to be ignited and heated again by using the fuel oil, and the cost of the fuel oil in the whole year is up to 50 ten thousand yuan.

In the prior art, a set of gas swirl chamber with swirl grooves at the front end is designed outside a mechanical atomization nozzle, an air nozzle is designed into a large circumferential seam type structure, and compressed air or steam enters the swirl chamber through the swirl grooves to form high-speed rotating airflow. The high-speed airflow is uniformly sprayed out from the nozzle in a full-circle rotating manner, the high-speed rotating airflow is mixed with atomized fuel oil atomized particles from the periphery in an annular form, and meanwhile, the high-speed rotating airflow violently impacts the atomized fuel oil atomized particles to tear the fuel oil droplets for the second time so as to realize the power atomization of air or steam, and the fineness of the atomized fuel oil is improved to about 80 microns, so that the mixture of the fuel oil and the air tends to an ideal combustion state. After being ignited, the flame forms white and powerful flame, and achieves good effects of high efficiency, energy conservation and environmental protection. The use of this device has the following disadvantages: the fuel oil has high atomization pressure, small adjustment range, large atomized particles and low combustion speed.

Disclosure of Invention

In order to solve the problem, the utility model provides a mechanical atomization diesel spray gun for the fuel granule after the atomizing is more tiny, and the burning is faster, and can provide the compressed air of capacity, guarantees quick abundant burning.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a mechanical atomization diesel spray gun, includes the spray gun head, the axle center department of spray gun head seted up the deep hole, the arrangement direction of deep hole is unanimous with the extending direction of spray gun head, the deep hole end has seted up the branch oilhole along the vertical direction of deep hole axial direction line, the end of deep hole be provided with the atomizer, the atomizer periphery is provided with rather than the overcoat of closely laminating, the overcoat on seted up the jet orifice.

The utility model discloses the beneficial effect who brings does: the method comprises the steps of forming a deep hole in the center axis of a gun core, forming a through hole serving as an oil distribution hole in the tail end of the deep hole along the vertical direction of the axial center line of the deep hole, arranging an atomizer at the tail end of the deep hole, sleeving an outer sleeve with a jet hole on the atomizer to enable the outer sleeve to be tightly attached and welding the outer sleeve with the gun core, enabling fuel oil to flow into the oil distribution hole through the deep hole of the gun core under pressure, enabling the fuel oil after flow distribution to enter a large-diameter spiral chamber through 4 or 3 spiral atomization grooves respectively, enabling the fuel oil to rotate at high speed under high and low oil pressures to form turbulent flow and generate larger centrifugal force, and then forming a hollow cone turbulent flow oil film through jetting holes in a jetting mode, enabling the oil film to collide with peripheral air in a friction mode to form.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a schematic view of the atomizer of the present invention;

fig. 3 is a schematic view of a spray gun head according to the present invention;

in fig. 1, a is an air inlet, and b is an oil inlet.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 3.

As shown in fig. 1-3, a mechanical atomization diesel spray gun comprises a spray gun head 1, wherein a deep hole 11 is formed in the axis of the spray gun head 1, the arrangement direction of the deep hole 11 is consistent with the extension direction of the spray gun head 1, an oil distribution hole 12 is formed in the tail end of the deep hole 11 along the vertical direction of the axial center line of the deep hole 11, an atomizer 2 is arranged at the tail end of the deep hole 11, an outer sleeve 21 tightly attached to the atomizer 2 is arranged on the periphery of the atomizer 2, and an injection hole 22 is formed in the outer sleeve 21;

the diameter of the deep hole 11 is 5 mm;

the aperture of the oil distribution hole 12 is 3 mm.

Fuel oil flows into the oil distribution hole 12 through the deep hole 11 of the oil gun core under pressure, the distributed fuel oil enters the large-diameter spiral chamber through 4 or 3 spiral atomizing grooves respectively, the fuel oil can rotate at high speed under high and low oil pressures to form turbulent flow and generate larger centrifugal force, and then the fuel oil is sprayed out through the spray hole 22 to form a hollow cone turbulent flow oil film, and the oil film is in friction collision with peripheral air to form fine fog drops.

Further, the outside of spray gun head 1 is provided with air duct 3, and the tip of pipeline 3 is provided with atomizing swirler 4, atomizing swirler 4 on seted up bar groove 411, the extending direction of bar groove 411 is perpendicular with atomizing swirler 4's axle center, the notch of bar groove 411 is up, bar groove 411 along atomizing swirler 4's circumferencial direction symmetrical arrangement, atomizing swirler 4's diameter is greater than spray gun head 1's diameter, and the groove depth and the groove width are bigger for spray gun head 1, and bar groove 411 is provided with 4, and spray gun head 1 outside adds an air duct 3 to at 3 head installations atomizing swirler 4 of air duct, and 4 groove depths and the width increase of atomizing swirler so that provide sufficient atomizing air and the required oxygen of burning. The fuel particles atomized by the atomizer 2 of the spray gun head 1 collide with the compressed air outside the fuel particles, and are sheared and broken under the action of the atomization swirler 4, so that the fuel atomized particles reach 50 microns, and meanwhile, the oil-gas mixture is more uniform, and the fuel is favorable for quick combustion.

Furthermore, an atomizing swirler jacket 41 is arranged on the periphery of the atomizing swirler 4, and a flame stabilizer 5 is arranged outside the atomizing swirler jacket 41.

Furthermore, the atomizing swirler casing 41 is provided with 4 through holes.

The flame stabilizer 5 is arranged outside the atomizing swirler jacket 41, and restricted flame gas is provided through 4 through holes 411 on the pipeline of the atomizing swirler jacket 41, so that the oil-gas mixture ejected by the atomizing swirler 4 is further subjected to collision shearing, and the superfine atomization of the fuel is realized. The granularity of fuel oil atomized particles subjected to triple atomization can reach 30 micrometers, so that the fuel oil and air are mixed more in an ideal combustion state, the combustion is more complete, the temperature is more concentrated, blue-white high-temperature flame is formed after ignition, the volatile components of the pulverized coal close to the oil flame can be quickly volatilized and combusted, and the good effects of high efficiency, energy conservation and environmental protection are achieved.

Furthermore, the tail end of the spray gun head 1 is provided with an adjusting valve. The different spray gun heads 1 of different coal quality designs are formed, modularization is realized on each pipeline and a control system, the universality is enhanced, a micro-regulating valve adopting special design is used for realizing flexible adjustment of small oil mass to large oil mass under the condition of keeping the better atomization effect, the universality of an oil gun system is good, the oil gun does not need to be replaced when a novel combustor is replaced, and the use requirement of the large oil mass of an old oil gun is met.

The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mechanical atomization diesel spray gun, includes spray gun head (1), its characterized in that: the spray gun comprises a spray gun head (1), a deep hole (11) is formed in the axis of the spray gun head (1), the arrangement direction of the deep hole (11) is consistent with the extension direction of the spray gun head (1), an oil distributing hole (12) is formed in one end of the deep hole (11) in the vertical direction of the axial center line of the deep hole (11), an atomizer (2) is arranged at the other end of the deep hole (11), an outer sleeve (21) tightly attached to the atomizer (2) is arranged on the periphery of the atomizer (2), and a spray hole (22) is formed in the outer sleeve (21;

an air pipeline (3) is arranged outside the spray gun head (1), an atomizing cyclone (4) is arranged at the end part of the pipeline (3), a strip-shaped groove (411) is formed in the atomizing cyclone (4), the extending direction of the strip-shaped groove (411) is perpendicular to the axis of the atomizing cyclone (4), the notch of the strip-shaped groove (411) faces upwards, the strip-shaped groove (411) is symmetrically arranged along the circumferential direction of the atomizing cyclone (4), and the diameter of the atomizing cyclone (4) is larger than that of the spray gun head (1);

an atomizing swirler jacket (41) is arranged on the periphery of the atomizing swirler (4), and a flame stabilizer (5) is arranged outside the atomizing swirler jacket (41);

the atomizing swirler outer sleeve (41) is provided with a through hole.

2. The mechanically atomizing diesel spray gun of claim 1, wherein: the diameter of the deep hole (11) is 5 mm.

3. The mechanically atomizing diesel spray gun of claim 1, wherein: the aperture of the oil distribution hole (12) is 3 mm.

4. The mechanically atomizing diesel spray gun of claim 1, wherein: the number of the through holes is 4.

5. The mechanically atomizing diesel spray gun of claim 1, wherein: the tail end of the spray gun head (1) is provided with an adjusting valve.