CN115164233A - Baffle assembly and stabilizer - Google Patents

Abstract

The invention provides a baffle plate assembly and a stabilizer comprising the same, wherein the baffle plate assembly comprises a baffle plate and a side plate, and the baffle plate is provided with a windward side and an oil-ward side opposite to the windward side; the oil-facing surface comprises two entrainment surfaces protruding towards the windward surface, each entrainment surface is provided with a first edge and a second edge opposite to the first edge, the two first edges are connected, and the two second edges are respectively connected with the corresponding side walls of the windward surface; the joint of the two first edges is an arc ridge, the arc ridge is provided with a circular edge line, the arc ridge is used for dividing oil into two parts, and each swirl surface is used for ejecting corresponding oil to the airflow direction; the inner side and the outer side of the baffle are respectively provided with side plates in a surrounding manner, each side plate is provided with an inner wall close to the baffle and an outer wall arranged opposite to the inner wall, at least part of the inner wall of each side plate is opposite to the side wall of the corresponding windward side and the corresponding swirling surface, and a gap for air flow to pass through is formed between each side plate and the side wall of the corresponding windward side.

Description

Baffle assembly and stabilizer

Technical Field

The invention relates to the technical field of engines, in particular to a baffle plate assembly and a stabilizer.

Background

At present, turbofan engines are widely applied to airplane power systems due to the characteristics of large thrust and high propulsion efficiency. With the increasing demand for aircraft mobility, the design scheme of installing an afterburner on a turbofan engine is adopted in a large quantity. However, the afterburner ignition starting process can generate disturbance influence on fan flow, and surge is easily caused, so that the afterburner of the turbofan engine needs to be designed with an on-duty stabilizer for realizing a small-oil-quantity soft ignition function and is used for soft starting of the afterburner ignition process. Thin film evaporative stabilizers, one type of afterburner duty stabilizer, are widely used because of their superior ignition performance and flame stability. The working principle of the film evaporation stabilizer is as follows: through the reverse oil spout of orifice, utilize baffle structure to keep off the fuel back, form the oil film and the evaporation of being heated on inside and outside stabilizer contact surface, further mix with a small amount of air that gets into the stabilizer and form combustible gas mixture, form stable ignition source after discharging from the stabilizer trailing edge. However, the film evaporation stabilizer in the prior art has large flow resistance and low fuel oil crushing evaporation efficiency.

Disclosure of Invention

To solve at least one of the above technical problems, the present invention provides a baffle assembly and a stabilizer.

According to one aspect of the invention, a baffle plate assembly for mixing oil and gas comprises a baffle plate and a side plate, wherein the baffle plate is an annular baffle plate and is provided with a windward side and an oil-ward side opposite to the windward side;

the oil-facing surface comprises two entrainment surfaces protruding towards the windward surface, the entrainment surfaces are curved surfaces, each entrainment surface is provided with a first edge and a second edge opposite to the first edge, the first edges of the two entrainment surfaces are connected, and the second edges of the two entrainment surfaces are respectively connected with the corresponding side walls of the windward surface;

the first edge connection part of the two entrainment surfaces is an arc ridge, the arc ridge is provided with a circular edge line, the arc ridge is used for dividing oil into two streams, and each entrainment surface is used for ejecting corresponding oil towards the airflow direction;

the inner side and the outer side of the baffle are respectively provided with the side plates in a surrounding manner, each side plate is provided with an inner wall close to the baffle and an outer wall opposite to the inner wall, at least part of the inner wall of each side plate is opposite to the corresponding side wall of the windward side and the corresponding airflow surface, and a gap for air to pass through is formed between each side plate and the corresponding side wall of the windward side.

According to at least one embodiment of the present invention, the side plate is a curved plate, and the side plate is a plate having a convex middle portion in a direction from an inner wall to an outer wall of the side plate.

According to at least one embodiment of the invention, the baffle assembly further comprises a plurality of ribs for connecting the side plates to the respective side walls of the windward side, the plurality of ribs being distributed along the circumference of the respective side walls of the windward side.

According to at least one embodiment of the present invention, the rib plate has a first end surface facing the wind and a second end surface opposite to the first end surface, the first end surface is a curved surface of a circular arc shape, and the second end surface is a rectangular end surface.

According to at least one embodiment of the invention, the windward side is a curved surface protruding in a direction away from the oil-ward side, the sidewall of the windward side has third edges, each of the swirl surfaces has a second edge connected to the corresponding third edge, and the connection between the two second edges and the third edge is a convex pointed edge.

According to at least one embodiment of the invention, the tip of the convexly pointed edge is a rounded edge.

According to at least one embodiment of the present invention, a cavity is provided between the windward side and the two swirl surfaces, and the baffle further has at least one breathing hole provided on the windward side and/or the swirl surfaces, the breathing hole being used for communication between the cavity and the outside of the baffle;

when the breathing holes are multiple, the breathing holes are uniformly distributed along the circumferential direction of the windward side.

According to at least one embodiment of the invention, the baffle assembly has a plurality of cross-sections distributed circumferentially along the baffle assembly;

the windward side in each cross section is a circular arc-shaped windward section, and the circular arc-shaped windward section is provided with a first circle center and a first axial symmetry line passing through the first circle center;

the edge line of the arc ridge formed by the two swirl surfaces is positioned on the first axial symmetry line of the corresponding windward line.

According to at least one embodiment of the present invention, the entrainment surfaces are circular arc-shaped entrainment portions, and in each of the cross sections, the entrainment portions of the two entrainment surfaces have a second axial symmetry line which coincides with the first axial symmetry line of the corresponding windward portion.

According to at least one embodiment of the invention, in each of the cross-sections, the side plate has an arc-shaped section having a first end point, a middle point and a second end point along the direction of the air flow, and the entrainment surface has an entrainment section having a second center;

the distance between the first end point and the first circle center is r1, the distance between the first end point and the second circle center is r2, a circle with the first circle center as the circle center radius r1 is a first circle, a circle with the first circle center as the circle center radius r2 is a second circle, the second circle is composed of an intersection part and a flow guide part, the intersection part is the intersection part of the second circle and the first circle, wherein r1 is more than r2;

the side plate has an arcuate section within the flow guide.

According to at least one embodiment of the present invention, the first end point and the second end point respectively form a first included angle with a connection line of the first circle center, a line segment of an angle bisector of the first included angle in the diversion part is a middle line segment, and the middle point is a midpoint of the middle line segment.

According to at least one embodiment of the invention, the fuel injector further comprises an annular fuel injection pipe,

the oil injection pipe is provided with a plurality of oil injection ports arranged along the circumferential direction, and the oil injection ports are opposite to the edge line of the arc ridge.

According to at least one embodiment of the invention, the fuel injection device further comprises a first support arranged between the edge line of the fuel injection pipe and the arc ridge, the fuel injection pipe and the arc ridge are fixedly connected through the first support, the first support comprises a plurality of connecting rods distributed along the circumferential direction of the fuel injection pipe, and the connecting rods are distributed at the position of the fuel injection pipe in a staggered manner with the corresponding fuel injection ports.

Another object of the present invention is to provide a stabilizer, which is a film evaporation type on-duty stabilizer, the stabilizer including an outer stabilizer and an inner stabilizer, the outer stabilizer including a V-shaped inner plate and a V-shaped outer plate, an annular receiving space being formed between the inner plate and the outer plate, the receiving space being used for disposing the inner stabilizer and the above-mentioned baffle assembly.

According to at least one embodiment of the invention, the inner stabilizer is a V-shaped stabilizer, the inner stabilizer comprises an upper plate and a lower plate, the angle between the upper plate and the lower plate is β, β is greater than or equal to 10 ° and less than or equal to 160 °; and/or the presence of a gas in the atmosphere,

the included angle between the inner plate and the outer plate of the outer stabilizer is alpha, and the alpha is more than or equal to 10 degrees and less than or equal to 120 degrees.

Compared with the prior art, in the baffle plate assembly provided by the invention, fuel is sprayed onto the arc ridge and is divided into two parts by the arc ridge, and because the swirl surface protrudes towards the windward side, the two parts of fuel respectively move along the two swirl surfaces to form oil films, so that fuel accumulation is avoided; meanwhile, the swirl surface is opposite to part of the side plates, so that the inner oil film and the outer oil film are respectively sprayed to the inner walls of the inner side plate and the outer side plate, air entering a gap is intersected with the oil films in the flow direction, oil-gas mixing is realized, a gap is formed between the side plates and the side wall of the windward surface, and a part of air flows into the gap; under the guiding action of the inner wall of the side plate, the primary mixed oil gas is guided to flow along the inner wall of the side plate, and is subjected to secondary oil gas mixing with air which does not flow into the gap in a strong turbulence wake region of the side plate; through twice mixing, the fuel crushing and atomizing process is fully realized, and compared with the prior art, the fuel crushing and evaporating efficiency is higher; secondly, through set up two annular curb plates inside and outside the baffle, form two gaps between baffle and the two curb plates, the guide air passes through, reduces the air flow resistance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic view of a stabilizer according to an embodiment of the present disclosure.

Fig. 2 is a schematic view of another perspective of a stabilizer according to an embodiment of the present disclosure.

Fig. 3 is a front view of the windward side of the stabilizer according to the embodiment of the present disclosure.

FIG. 4 is a schematic illustration of the windward and leeward sides of a baffle assembly according to an embodiment of the disclosure.

Fig. 5 is a schematic diagram of a stabilizer according to an embodiment of the present disclosure.

FIG. 6 is a schematic illustration of a rib in a baffle assembly according to an embodiment of the present disclosure.

Fig. 7 is a schematic cross-sectional design step diagram of a stabilizer according to an embodiment of the present disclosure.

Fig. 8 is a schematic view of an embodiment in which an inner stabilizer is connected to an outer stabilizer in a stabilizer according to an embodiment of the present disclosure.

Fig. 9 is a schematic view of another embodiment in which an inner stabilizer is connected to an outer stabilizer in a stabilizer according to an embodiment of the present disclosure.

Reference numerals: 1-windward side; 2-dough rolling; 3-arc ridge; 4-side plate; 5-a convex cusp edge; 6-ribbed plate; 7-an oil spray pipe; 8-an internal stabilizer; 9-an external stabilizer; 10-windward arc plate; 11-swirl arc plate; 12-an oil injection port; 13-a breathing hole; 14-a first axis of symmetry; 15-second axis of symmetry; 16-a rod member; 17-a gap; 18-first circle; 19-second circle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, 2 and 4, according to a first embodiment of the present invention, there is provided a baffle assembly for mixing oil and gas, the baffle assembly including a baffle plate and a side plate 4, the baffle plate being an annular baffle plate, the baffle plate having a windward side 1 and an oil-ward side opposite to the windward side 1; the oil-facing surface comprises two entrainment surfaces 2 protruding towards the windward surface 1, each entrainment surface 2 is a curved surface, each entrainment surface 2 is provided with a first edge and a second edge opposite to the first edge, the first edges of the two entrainment surfaces 2 are connected, and the second edges of the two entrainment surfaces 2 are respectively connected with the corresponding side walls of the windward surface 1; the first edge joint of the two entrainment surfaces 2 is an arc ridge 3, the arc ridge 3 is provided with a circular edge line, the arc ridge 3 is used for dividing oil into two streams, and each entrainment surface 2 is used for ejecting corresponding oil towards the airflow direction; the inner side and the outer side of the baffle are respectively provided with side plates 4 in a surrounding manner, each side plate 4 is provided with an inner wall close to the baffle and an outer wall opposite to the inner wall, at least part of the inner wall of each side plate 4 is opposite to the side wall of the corresponding windward side 1 and the corresponding air entrainment surface 2, and a gap 17 for air flow to pass through is arranged between each side plate 4 and the side wall of the corresponding windward side 1.

It will be appreciated that the windward side 1 and the swirl side 2 are both annular faces, the first and second edges are both rounded edges, and the arc ridge 3 has an overall rounded edge line when the two first edges are joined together. It should be noted that, in order to clearly illustrate the specific structure of the baffle assembly and the stabilizer of the present invention, the stabilizer shown in fig. 1, 2 and 3 is not shown as a complete ring shape, but is an enlarged schematic view of a part of the ring shape, in fact, the baffle assembly, the oil spray pipe, the inner stabilizer and the outer stabilizer in the stabilizer are all complete ring structures, and the baffle assembly shown in fig. 4 is not shown as a complete ring shape, but is an enlarged schematic view of a part of the ring shape, in fact, the baffle assembly is a complete ring structure.

The above-mentioned that the swirl surface 2 protrudes towards the windward surface 1 and the swirl surface 2 is a curved surface means that, referring to fig. 5, the generatrix of the swirl surface 2 is a curve protruding towards the windward surface 1, such as a parabola, an ellipse and an arc, therefore, when the fuel is injected to the edge line of the arc ridge 3, the edge line divides the fuel into two streams, the two streams of fuel move along the swirl surface 2 to form a swirl flow, and the two streams of fuel fly out from the second edge along the tangential direction of the swirl surface 2, so as to avoid the fuel from accumulating on the swirl surface 2.

Specifically, at least a part of the inner wall of each side plate 4 is opposite to the side wall of the corresponding windward side 1 and the corresponding swirl surface 2, which means that, referring to fig. 7, a plane passing through the central axis of the baffle, that is, a first axial symmetry line 14, is a projection plane, and the orthographic projections of the edge of the windward side 1 and the second edge of the swirl surface 2 on the projection plane are located inside the orthographic projection of the inner wall of the side plate 4 on the projection plane, so that the side plate 4 serves as an extension of the windward side 1 and the swirl surface 2, and the inner wall of the side plate 4 is used for guiding the flow direction of the air and the swirl oil beam entering the gap 17. The swirl oil bundles refer to oil films formed on the swirl surface 2 by the fuel oil divided into two by the arc ridges 3, and the oil films move along the swirl surface 2 to form swirl oil bundles.

In some embodiments, the windward side 1 and the oil-ward side may be solid, and are suitable for integral molding, and the structural stability is strong, for example, the windward side 1 and the two swirl surfaces 2 may be directly machined on an annular body, or may be integrally molded by casting.

In some embodiments, referring to fig. 3 and 5, the windward side 1 and the oil-ward side may be hollow, that is, a cavity is formed between the windward side 1 and the two windward sides 2, so as to reduce the weight of the baffle assembly; in order to avoid the deformation of the baffle caused by different pressures inside and outside the cavity, the baffle is also provided with at least one breathing hole 13, the breathing hole 13 is arranged on the windward side 1 and/or the swirling surface 2, and the breathing hole 13 is used for communicating the cavity with the outer side of the baffle; because the breathing hole 13 is with communicating outside the cavity to make the internal and external pressure in the cavity the same, and then avoid the baffle to warp the rigidity that influences baffle subassembly. The quantity of breathing hole 13 sets up according to actual need, can be one, also can be a plurality of, and when breathing hole 13 was a plurality of, a plurality of breathing holes 13 were along 1 circumference evenly distributed of windward side. Set up a plurality of breathing holes 13 for every breathing hole 13's size is less, and is little to the intensity influence of baffle, and inside a plurality of breathing holes 13 evenly distributed, the air of being convenient for got into the cavity fast, reached pressure balance fast.

In some embodiments, the baffle may be integrally formed by casting or the like; in other embodiments, the baffle plate may also be formed by welding a plurality of plate members, for example, the baffle plate may include a windward arc plate 10 and two convection arcs 11, which are both annular, one side edge of the two convection arcs 11 is welded together, and the other side edge of the two convection arcs 11 is welded together with both sides of the windward arc plate 10.

In some embodiments, the bus of the windward side 1 may be formed by splicing a plurality of straight line segments and/or curved line segments, for example, a V-shape may be formed by splicing two straight line segments, or a U-shape may be formed by splicing three straight line segments, or a U-shape may be formed by splicing a plurality of straight line segments, or a U-shape may be formed by splicing two straight line segments and a circular arc line segment, or any other shape may be formed by splicing a plurality of straight line segments and/or curved line segments, as long as the two ends of the windward side 1 can be connected to the second edges of the two scrolling surfaces 2.

In the prior art, the baffle is a U-shaped baffle, the windward surface 1 of the U-shaped baffle is a plane, and when the U-shaped baffle passes through an upper channel and a lower channel of the U-shaped baffle, the air cocurrent area changes suddenly, so that the air flow resistance is large; meanwhile, when air passes through the U-shaped baffle, the air is subjected to boundary separation, so that the situation that fuel oil and air are separated greatly is caused, and the air and the fuel oil are not mixed conveniently.

Referring to fig. 4, the windward side 1 of the embodiment of the present invention is a curved surface protruding in a direction away from the oil-ward side to reduce the air flow resistance; the side wall of the windward side 1 has third edges, each of the vortex surfaces 2 has second edges connected to the corresponding third edges, and the connection between the two second edges and the third edges is a convex pointed edge 5.

Referring to fig. 5 and 7, the curved surface of the windward side 1 protruding away from the oil-facing surface means that the generatrix of the windward side 1 is a curve, and the generatrix of the windward side 1 can be any curve, such as a parabola, an arc, or an ellipse; meanwhile, the arc radius of the generatrix of the windward side 1 can be changed according to actual needs, so that different effects of reducing flow resistance are obtained.

In order to facilitate the air and the fuel to be fully mixed, please refer to fig. 5, the connection between the two second edges and the third edge is a convex sharp edge 5, which can enhance the turbulent energy of the air when passing through, and make the air and the oil film enter the turbulent region of the trail together, and make the air and the fuel be fully mixed by the strong turbulent action.

In some embodiments, the generatrix of the windward side 1 is tangent to the generatrix of both the swirl surfaces 2, thereby forming a sharp edge 5, for example, the tip of the sharp edge 5 is a rounded edge, i.e. the rounded edge is tangent to the windward side 1 and the swirl surfaces 2, respectively, which facilitates manufacturing, and at the same time, prevents fuel from accumulating on the second edge by providing a certain spacing between the oil film and the air by providing the rounded edge.

In practice, referring to fig. 5 and 7, the baffle has a plurality of cross sections distributed along the circumferential direction of the baffle; the windward side 1 in each cross section is a circular arc windward line which has a circle center and a first axial symmetry line 14 passing through the circle center; the arc ridges 3 formed by the two swirl surfaces 2 have edge lines which lie on a first axial symmetry line 14 of the respective windward line. Therefore, when fuel is injected to the arc ridges 3, the arc ridges 3 evenly distribute the fuel to the two swirl surfaces 2, and the oil film is broken by air more favorably.

In some embodiments, referring to fig. 5 and 7, the entrainment surfaces 2 are curved in the shape of a circular arc, and in each of the above cross sections, the entrainment portions of the two entrainment surfaces 2 have a second axis of symmetry 15, the second axis of symmetry 15 coinciding with the first axis of symmetry 14 of the corresponding windward line. The two swirl surfaces 2 are symmetrically arranged relative to the second axial symmetry line 15, and two beams of fuel oil separated by the arc ridge 3 are uniformly distributed on the two swirl surfaces 2, so that the oil film breaking effect is improved.

In some embodiments, referring to fig. 1, 2 and 5, the side plate 4 is a curved plate, and the side plate 4 is a plate protruding from the middle portion along the direction from the inner wall to the outer wall of the side plate 4. That is, the generatrix of the inner wall of the side plate 4 and the outer wall of the side plate 4 is a curve such as a parabola, an ellipse, and an arc of a circle, which is convex in the middle, to further reduce the flow resistance of the air flowing into the slit 17.

Referring to fig. 7, in each of the above cross sections, the side plate 4 has an arc-shaped section, along the direction of the airflow, the arc-shaped section has a first end point, a middle point and a second end point, and the entrainment surface 2 has an entrainment section having a second circle 19 center; the distance between the first end point and the center of the first circle 18 is r1, the distance between the first end point and the center of the second circle 19 is r2, the circle with the center of the first circle 18 as the center of the circle and the radius r1 is the first circle 18, the circle with the center of the first circle 18 as the center of the circle and the radius r2 is the second circle 19, the second circle 19 consists of an intersection part and a flow guide part, the intersection part is the intersection part of the second circle 19 and the first circle 18, wherein r1 is more than r2; the side plates 4 have an arc-shaped section in the flow guide.

Specifically, referring to fig. 7, the intersection portion, i.e., the portion of the second circle 19, is located inside the first circle 18, the diversion portion, i.e., the portion of the second circle 19, is located outside the first circle 18, and the arc-shaped section of the side plate 4 is located outside the first circle 18. Relative to the second circle 19, the arc segment of the side plate 4 is closer to the first axial symmetry line 14, so that the arc segment of the side plate 4 has a larger restriction effect on the flow direction of the fuel oil beam than when the fuel oil beam moves on the arc segment; relative to the first circle 18, the arc line segment of the side plate 4 is farther away from the first axis line of symmetry 14, so the side plate 4 increases the flow area of the air passing through the gap 17 after passing through the gap 17, and the turbulent effect formed after the flow area of the gap 17 is suddenly enlarged is enhanced.

In some embodiments, referring to fig. 7, the first end point and the second end point respectively form a first included angle with a line connecting the centers of the first circles 18, a line segment of an angular bisector of the first included angle in the diversion part is a middle line segment, and the middle point is a midpoint of the middle line segment, so that the side plate 4 as an extension of the windward side 1 and the swirl side 2 achieves a relatively smooth transition connection, and the first end point may be an intersection point of the first circle 18 and the second circle 19 near the windward side 1.

The specific configuration of the baffles and side panels 4 is clearly illustrated in detail by geometrical means below:

referring to fig. 7, firstly, the rotation radius and the cross-sectional dimension of the baffle and the side plate 4 are determined according to actual conditions, the rotation radius is the symmetry center of the cross-section, i.e. the distance between the first axis of symmetry 14 and the rotation axis, and the rotation axis is the central axis of the over-stabilizer;

the cross-section size determination process is as follows:

(1) Determining the size and the position of a windward side 1 bus, namely a windward line, and a swirl side 2 bus, namely a swirl section, determining the distance L between an oil injection hole and an arc ridge 3 according to the actual oil injection quantity and the oil injection pressure, wherein the distance L is too large, the kinetic energy loss of fuel oil reaching the arc ridge 3 is large, and the swirl effect is not obvious; the distance L is too small, the space for fuel oil crushing is small, the atomization effect is also influenced, and the appropriate distance L can be selected according to the simulation condition. And determining the radius of the circular arc section, namely the radius r2 of the second circle 19 and the center distance of the two circular arc sections according to the position of the arc ridge 3 and the swirl size of the fuel oil bundles. And then according to the flow resistance characteristic of the actual windward side 1, determining the distance S from the center of the windward line, namely the center of the first circle 18 to the arc ridge 3, and the radius R of the windward line. The windward line can also be designed into an elliptical arc and other streamline shapes to reduce the flow resistance;

2) Defining the width of the slot 17 and the extent of the arc of the side panel 4. A first ray in the radial direction of the first circle 18 is made through the center of the first circle 18. The angle of the first ray to the first axis of symmetry 14 can be adjusted according to the actual requirement of the proportion of air distributed in the gap 17. The first ray intersects the windward line at point a. And making a concentric arc of the windward line, and intersecting the concentric arc with the first ray at a point B. The line segment AB is the width of the gap 17, and the length of the line segment AB can be selected according to actual needs. A preferable method for determining the arc range of the side plate 4 is to make a concentric circle of the entrainment section, namely the second circle 19, by taking the center of the second circle 19 as the center of a circle; taking the center of the first circle 18 as the center of circle, making a concentric circle of the windward line, namely the first circle 18, so that the point B falls on the first circle 18 and the second circle 19 at the same time, and the area between two intersection points of the first circle 18 and the second circle 19 and positioned outside the first circle 18 is the arc range of the side plate 4;

3) The key points of the side panel 4 arc are determined. According to the actual requirement of the diversion length of the side plate 4, the center of the first circle 18 is used as a second ray along the radius direction, and the first ray and the second ray form a first included angle, so that the arc line of the side plate 4 falls within the range of the first included angle. The second ray intersects the second circle 19 at point D1 and the second ray intersects the first circle 18 at point D2. And then making an angular bisector of the first included angle, wherein the angular bisector intersects the second circle 19 at a point C1, and the angular bisector intersects the first circle 18 at a point C2, so that the point B, the midpoint C of the line segment C1C2, and the midpoint D of the line segment D1D2 are key points on the arc line of the side plate 4, that is, the arc line segment of the side plate 4 is an arc segment passing through the point B, the point C, and the point D. Obviously, the arc shape of the side plate 4 can be designed into other curve shapes and sizes according to design requirements.

In some embodiments, referring to fig. 1 and 2, the baffle plate assembly further comprises a plurality of ribs 6 for connecting the side plate 4 and the corresponding side wall of the windward side 1, the plurality of ribs 6 being distributed along the circumferential direction of the corresponding side wall of the windward side 1. Through set up a plurality of floor 6 between curb plate 4 and windward side 1 and connect curb plate 4, on the one hand because the air flows behind gap 17 and flows the cross section and enlarge suddenly, on the other hand because the air will bypass floor 6 to make the turbulent kinetic energy of air strengthen, increase the air current disturbance, promote the broken atomizing process of oil beam. The ribbed plates 6 can be uniformly distributed along the circumferential direction of the baffle; alternatively, the ribs 6 may be more dense in the region where the oil bundles are concentrated to enhance the turbulent kinetic energy of the air flow in the region where the oil bundles are concentrated.

In consideration of disturbance of the airflow by the shape of the rib 6, for example, referring to fig. 6, the rib 6 has a first end face facing the wind and a second end face opposite to the first end face, the first end face is a curved face of a circular arc shape, and the second end face is a rectangular end face. The windward end of the rib plate 6, namely the first end face, adopts an arc, namely, the windward end of the rib plate 6 is a semi-cylinder, so that the wind resistance is reduced, the leeward end of the rib plate 6, namely the second end face, adopts a square shape, namely, the leeward end of the rib plate 6 is a cuboid, so that the flow area of air is increased suddenly after the air bypasses the rib plate 6, the turbulence effect of air flow is enhanced, and the interaction of air and oil bundles is favorably strengthened.

In some embodiments, referring to fig. 1, 2 and 5, the baffle assembly further comprises an annular oil spray pipe 7, the oil spray pipe 7 having a plurality of oil spray nozzles 12 arranged along a circumferential direction, the oil spray nozzles 12 being opposite to an edge line of the arc ridge 3. The fuel injection port 12 is opposite to the arc ridge 3, and ensures that fuel injected from the fuel injection port 12 is injected onto the arc ridge 3, so that the injected fuel is uniformly divided into two.

In some embodiments, the baffle plate assembly further comprises a first support arranged between the edge lines of the oil injection pipe 7 and the arc ridge 3, the oil injection pipe 7 is fixedly connected with the arc ridge 3 through the first support, the first support comprises a plurality of connecting rods distributed along the circumferential direction of the oil injection pipe 7, and the connecting rods are distributed at the position of the oil injection pipe 7 in a staggered mode with the corresponding oil injection ports 12. The two ends of each connecting rod are respectively welded with the oil injection pipe 7 and the arc ridge 3. The oil spraying pipe 7 and the baffle plate are fixed together by arranging the connecting rod, so that the relative position of the oil spraying port 12 and the arc ridge 3 is ensured not to deviate due to factors such as air flow disturbance, vibration and the like.

It is another object of the present invention to provide a stabilizer which is a thin film evaporation type duty stabilizer, it being understood that the stabilizer of the present invention is also applicable to other types of duty stabilizers. The stabilizer comprises an outer stabilizer 9 and an inner stabilizer 8, the outer stabilizer 9 comprises a V-shaped inner plate and a V-shaped outer plate, an annular accommodating space is formed between the inner plate and the outer plate, and the accommodating space is used for arranging the inner stabilizer 8 and the baffle plate assembly. Specifically, referring to fig. 1 and 2, the inner plate and the outer plate are annular, that is, from inside to outside, the inner plate, the baffle assembly and the outer plate are sequentially distributed, the inner stabilizer 8 is annular, the inner stabilizer 8 is located between the inner plate and the outer plate, and the inner stabilizer 8 is located on one side of the oil spray pipe 7 away from the baffle. The technical effect of the stabilizer is consistent with that of the baffle plate assembly, and is not described herein again.

For example, referring to fig. 8, the outer stabilizer 9 may be welded by welding the inner and outer plates, or by welding the inner and outer plates to the baffle assembly, or by welding the inner and outer plates to the inner stabilizer 8. The outer stabilizer 9 can be fixedly connected with the casing by a bracket welding mode.

In some embodiments, the rear edge of the inner stabilizer 8 and the rear edge of the outer stabilizer 9 are connected by means of bracket welding, specifically, taking the lower plate of the inner stabilizer 8 and the inner plate of the outer stabilizer 9 as an example, as shown in the figure, a plurality of rods 16 are disposed between the lower plate of the inner stabilizer 8 and the inner plate of the outer stabilizer 9, the plurality of rods 16 are uniformly distributed along the circumferential direction of the inner stabilizer 8, both ends of each rod 16 are welded with the lower plate of the inner stabilizer 8 and the inner plate of the outer stabilizer 9, respectively, and a gap between any adjacent rods 16 is used for air to pass through. It is apparent that the connection between the upper plate of the inner stabilizer 8 and the outer plate of the outer stabilizer 9 is identical to the connection between the lower plate of the inner stabilizer 8 and the inner plate of the outer stabilizer 9, and thus, will not be described herein.

In other embodiments, referring to fig. 9, the rear edges of the upper and lower plates of the inner stabilizer 8 are zigzag-shaped, and the peaks or valleys of the zigzag shape are welded to the outer plate of the outer stabilizer 9 or the inner plate of the outer stabilizer 9, and the indentations are formed to allow air to pass therethrough.

Specifically, the inner stabilizer 8 is a V-shaped stabilizer, the inner stabilizer 8 comprises an upper plate and a lower plate, an included angle between the upper plate and the lower plate is beta, and beta is more than or equal to 10 degrees and less than or equal to 160 degrees; and/or the included angle between the inner plate and the outer plate of the outer stabilizer 9 is alpha, and alpha is more than or equal to 10 degrees and less than or equal to 120 degrees. If the included angle α and the included angle β are too small, the flow resistance is reduced, but the trapped vortex effect is deteriorated, which is not favorable for improving the combustion efficiency and the combustion stability, otherwise, the effects are opposite. However, the size matching of each part also has important influences on flow resistance, combustion efficiency and combustion stability, so that the included angle α and the included angle β need to be selected according to actual needs or simulation data. In some embodiments, the included angle β may be selected to be 30 °, 60 °, 90 °, 120 ° and 150 °, and the included angle α may be selected to be 30 °, 60 °, 90 °.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of description and are not intended to limit the scope of the invention. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure and are within the scope of the invention.

Claims (15)

1. The baffle plate assembly is characterized by being used for mixing oil gas and comprises a baffle plate and a side plate, wherein the baffle plate is an annular baffle plate and is provided with a windward side and an oil-ward side opposite to the windward side;

the oil-facing surface comprises two entrainment surfaces protruding towards the windward surface, the entrainment surfaces are curved surfaces, each entrainment surface is provided with a first edge and a second edge opposite to the first edge, the first edges of the two entrainment surfaces are connected, and the second edges of the two entrainment surfaces are respectively connected with the corresponding side walls of the windward surface;

the first edge joint of the two entrainment surfaces is an arc ridge, the arc ridge is provided with a circular edge line, the arc ridge is used for dividing oil into two parts, and each entrainment surface is used for ejecting corresponding oil towards the airflow direction;

the inner side and the outer side of the baffle are respectively provided with the side plates in a surrounding manner, each side plate is provided with an inner wall close to the baffle and an outer wall opposite to the inner wall, at least part of the inner wall of each side plate is opposite to the corresponding side wall of the windward side and the corresponding airflow surface, and a gap for air to pass through is formed between each side plate and the corresponding side wall of the windward side.

2. The baffle plate assembly of claim 1, wherein said side plate is a curved plate, and said side plate is a plate with a convex middle portion along a direction from an inner wall to an outer wall of said side plate.

3. The baffle assembly of claim 1, further comprising a plurality of ribs for connecting said side plate to a respective sidewall of said windward side, said plurality of ribs being distributed along a circumference of said respective sidewall of said windward side.

4. The baffle plate assembly of claim 3 wherein said ribs have a first face facing into the wind and a second face opposite said first face, said first face being a curved arcuate face and said second face being a rectangular face.

5. The baffle plate assembly of any one of claims 1 to 4, wherein said windward surface is curved and convex away from said windward surface, said windward side wall having third edges, each of said windward surfaces having a second edge connected to a respective said third edge, and wherein the junction of two of said second edges and said third edge is a convex pointed edge.

6. The baffle plate assembly of claim 5 wherein a tip of said convexly shaped edge is a rounded edge.

7. The baffle plate assembly of any one of claims 1 to 4, wherein a cavity is provided between said windward side and said two said entrainment surfaces, said baffle plate further having at least one breathing hole provided in said windward side and/or said entrainment surfaces, said breathing hole being provided for communication of said cavity with an outside of said baffle plate;

when the breathing holes are multiple, the breathing holes are uniformly distributed along the circumferential direction of the windward side.

8. The baffle assembly of any of claims 1 to 4, wherein said baffle assembly has a plurality of cross-sections distributed circumferentially along said baffle assembly;

the windward side in each cross section is a circular arc-shaped windward section, and the circular arc-shaped windward section is provided with a first circle center and a first axial symmetry line passing through the first circle center;

the edge line of the arc ridge formed by the two swirl surfaces is positioned on the first axial symmetry line of the corresponding windward line.

9. The baffle plate assembly of claim 8 wherein said entrainment surfaces are arcuate entrainment portions, two of said entrainment surfaces having entrainment portions in each of said cross-sections having a second axis of symmetry which coincides with a first axis of symmetry of the respective windward portion.

10. The baffle plate assembly of claim 8 wherein in each of said cross-sections said side plate has an arcuate segment having a first end point, a midpoint and a second end point along said direction of said gas flow, said entrainment surface having an entrainment segment with a second center of circle;

the distance between the first end point and the first circle center is r1, the distance between the first end point and the second circle center is r2, a circle with the first circle center as the circle center radius r1 is a first circle, a circle with the first circle center as the circle center radius r2 is a second circle, the second circle is composed of an intersection part and a flow guide part, the intersection part is the intersection part of the second circle and the first circle, wherein r1 is more than r2;

the side plate has an arcuate section within the flow guide.

11. The baffle plate assembly of claim 10, wherein the first end point and the second end point each form a first included angle with a line connecting the first circle centers, wherein a line segment of an angular bisector of the first included angle in the flow guide portion is a middle line segment, and wherein the middle point is a midpoint of the middle line segment.

12. The baffle plate assembly of any of claims 1 to 4, further comprising an annular oil jet,

the oil injection pipe is provided with a plurality of oil injection ports arranged along the circumferential direction, and the oil injection ports are opposite to the edge line of the arc ridge.

13. The baffle plate assembly of claim 12, further comprising a first bracket disposed between said spray bar and an edge line of said arcuate ridge, said spray bar being fixedly connected to said arcuate ridge by said first bracket, said first bracket including a plurality of tie bars circumferentially spaced about said spray bar, said tie bars being offset from respective ones of said spray openings at the location of said spray bar.

14. A stabilizer, wherein the stabilizer is a film evaporation type duty stabilizer, the stabilizer comprises an outer stabilizer and an inner stabilizer, the outer stabilizer comprises a V-shaped inner plate and a V-shaped outer plate, an annular accommodating space is formed between the inner plate and the outer plate, and the accommodating space is used for arranging the inner stabilizer and the baffle plate assembly as claimed in any one of claims 1 to 13.

15. The stabilizer of claim 14, wherein the internal stabilizer is a V-shaped stabilizer comprising an upper plate and a lower plate, the upper plate and the lower plate having an angle β, wherein 10 ° β ° 160 ° β; and/or the presence of a gas in the gas,

the included angle between the inner plate and the outer plate of the outer stabilizer is alpha, and the alpha is more than or equal to 10 degrees and less than or equal to 120 degrees.

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