CN115164232B - Baffle, baffle assembly and stabilizer - Google Patents

Abstract

The present disclosure provides a baffle, a baffle assembly including the baffle, and a stabilizer including the baffle assembly, the baffle being for mixing of oil and gas, the baffle being an annular baffle having a windward side and an oil ward side opposite the windward side, the windward side and the oil ward side having at least one air hole therebetween for passage of air; the oil-facing surface comprises two rolling surfaces protruding towards the windward surface, the rolling surfaces are curved surfaces, each rolling surface is provided with a first edge and a second edge opposite to the first edge, the first edges of the two rolling surfaces are connected, and the second edges of the two rolling surfaces are connected with two ends of the windward surface; the first edge connection part of the two rolling surfaces is an arc ridge, the arc ridge is provided with a round edge line, and the arc ridge is used for dividing oil into two streams.

Description

Baffle, baffle assembly and stabilizer

Technical Field

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

Background

Because the low-temperature air flow of the outer duct is mixed with the high-temperature air flow of the inner duct, the incoming flow temperature of the afterburner of the turbofan engine is lower, and the afterburner can influence the flow of the outer duct fan when being started by ignition, the surge phenomenon is easy to be caused, and therefore, a duty stabilizer is often required to be adopted to realize the soft ignition process of small oil quantity. The working principle of the film evaporation type on-duty stabilizer is that fuel oil is reversely sprayed through a spray hole, a baffle plate structure is utilized to stop the fuel oil back, an oil film is formed on the contact surface of the inner stabilizer and the outer stabilizer and is heated and evaporated, the oil film is further mixed with a small amount of air entering the stabilizer to form a combustible mixed gas, and the combustible mixed gas is discharged from the rear edge of the stabilizer to form a stable ignition source. However, the total pressure loss of the existing film evaporation type on-duty stabilizer is high, the fuel atomization quality in the stabilizer is poor, and the ignition performance of the afterburner is affected.

Disclosure of Invention

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

According to one aspect of the disclosure, a baffle for mixing oil and gas, the baffle being an annular baffle having a windward side and an oil ward side opposite the windward side, the windward side and the oil ward side having at least one air hole therebetween for passage of air;

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

the first edge connection part of the two rolling surfaces is an arc ridge, the arc ridge is provided with a round edge line, and the arc ridge is used for dividing oil into two streams.

According to at least one embodiment of the present disclosure, the windward side is a curved surface protruding in a direction away from the oil-ward side, two ends of the windward side have third edges, each second edge of the windward side is connected with the corresponding third edge, and a junction between the two second edges and the third edge is a convex-pointed edge.

According to at least one embodiment of the present disclosure, the tip of the convex pointed edge is a rounded edge.

According to at least one embodiment of the present disclosure, a cavity is provided between the windward side and the two windward sides, at least one ventilation pipe is provided in the cavity, and the ventilation pipe is used for connecting and penetrating between the air hole of the windward side and the air hole of the corresponding windward side.

According to at least one embodiment of the present disclosure, the diameter of the air hole or the ventilation pipe becomes larger, or,

along the direction from the windward side to the rolling side, the diameter of the air hole or the ventilation pipe becomes smaller, or,

the diameter of the air hole or the ventilation pipe is unchanged along the direction from the windward side to the rolling side.

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

when the number of the breathing holes is multiple, the breathing holes are uniformly distributed along the circumference of the windward side.

According to at least one embodiment of the present disclosure, the baffle has a plurality of cross sections distributed circumferentially along the baffle;

the windward side in each cross section is an arc windward line, and the arc windward line is provided with a circle center and a first axisymmetric line passing through the circle center;

the edge line of the arc ridge formed by the two rolling surfaces is positioned on the first axisymmetric line of the windward line.

According to at least one embodiment of the present disclosure, the air hole or the ventilation pipe has a center line, and an included angle is formed between the center line and the first axis symmetry line, and the included angle is an acute angle.

According to at least one embodiment of the present disclosure, the swirl face is an arc-shaped curved surface, and in each cross section, the arc sections of the two swirl faces have a second axis of symmetry, and the second axis of symmetry coincides with the first axis of symmetry of the corresponding windward line.

According to at least one embodiment of the present disclosure, in each of the cross sections, the arc ridge formed by the two rolling surfaces has a distance between an edge line and the windward line of L, and accordingly the radius of the windward line is R, where L is less than or equal to R, or L > R.

According to at least one embodiment of the present disclosure, a first interval is provided between air holes of each of the plume surfaces, which are close to the first axis symmetry line, and a second interval is provided between air holes of each of the plume surfaces, which are far from the first axis symmetry line, and the first interval is smaller than the second interval; or alternatively, the first and second heat exchangers may be,

when the air holes of the rolling surface are uniformly distributed, the first interval is equal to the second interval.

One of the purposes of the invention is to provide a baffle plate assembly, which comprises the baffle plate and an oil injection pipe,

the oil injection pipe is an annular oil 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 present disclosure, the baffle assembly further includes a first bracket disposed between the oil injection pipe and an edge line of the arc ridge, the oil injection pipe and the arc ridge are fixedly connected through the first bracket, the first bracket includes a plurality of connecting rods circumferentially distributed along the oil injection pipe, and the connecting rods are staggered and distributed at positions of the oil injection pipe and corresponding oil injection ports.

One of the purposes of the invention is to provide a stabilizer which is a thin 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.

According to at least one embodiment of the present disclosure, the inner stabilizer is annular, the cross section of the inner stabilizer is V-shaped, the inner stabilizer comprises an upper plate and a lower plate, an included angle between the upper plate and the lower plate is β, and β is 10 ° or more and 160 ° or less; and/or the number of the groups of groups,

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

According to at least one embodiment of the present disclosure, an end of the upper plate facing away from the baffle assembly is a first annular serrated structure; the first annular saw-tooth structure comprises a plurality of first wave crest parts protruding towards the outer plate and a plurality of first wave trough parts protruding towards the lower plate, the plurality of first wave crest parts and the plurality of first wave trough parts are sequentially connected in a staggered way, the plurality of first wave crest parts are welded with the outer plate, and/or,

one end of the lower plate, which is away from the baffle plate assembly, is of a second annular sawtooth-shaped structure; the second annular sawtooth-shaped structure comprises a plurality of second wave crest portions protruding towards the direction of the upper plate and a plurality of second wave trough portions protruding towards the direction of the inner plate, the second wave crest portions and the second wave trough portions are sequentially connected in a staggered mode, and the second wave crest portions are welded with the inner plate.

The beneficial effects of the invention are as follows: compared with the existing U-shaped baffle, the baffle is provided with the two rolling surfaces protruding towards the windward side, the injected fuel is divided into two parts by the arc ridge at the joint of the two rolling surfaces, the two parts of injected fuel flow through the rolling surfaces to form rolling flow for returning, fuel accumulation is avoided, the thickness of an oil film of the injected fuel on the baffle is reduced, at the same time, at least a part of air inflow enters the air hole, high-speed air flow in the air hole impacts the oil film on the rolling surfaces, the oil film on the rolling surfaces is accelerated to break, the fuel atomization effect is improved, and the ignition performance is optimized;

secondly, after two streams of injected fuel flow through the rolling surfaces to form rolling flows and return, as the second edges of the two rolling surfaces are respectively connected with the two ends of the windward surface, the returned oil film and the air passing through the windward surface enter a turbulence area of the wake together, and the mixing of the air and the injected fuel is promoted by using the turbulence effect;

in addition, in the state that the afterburner is not opened, the air holes form a flow passage for a part of air to flow through, so that the flow resistance of the air to flow is reduced.

Drawings

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

Fig. 1 is a schematic view of a prior art baffle.

Fig. 2 is a schematic structural view of a baffle according to an embodiment of the present disclosure.

Fig. 3 is a schematic cross-sectional view of a stabilizer according to an embodiment of the present disclosure.

Fig. 4 is a schematic perspective view of a stabilizer according to an embodiment of the present disclosure.

Fig. 5 is a perspective schematic view of another view of a stabilizer according to an embodiment of the present disclosure.

Fig. 6 is another cross-sectional schematic view of a stabilizer according to an embodiment of the present disclosure.

Fig. 7 is a schematic front view of a stabilizer according to an embodiment of the present disclosure.

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

Fig. 9 is a schematic diagram of another embodiment of a connection of an inner stabilizer with an outer stabilizer in a stabilizer according to an embodiment of the present disclosure.

Reference numerals: 1-windward side; 2-rolling flow surface; 3-arc ridges; 4-air holes; 5-a convex pointed edge; 6-ventilation pipe; 7-an oil injection pipe; 8-an internal stabilizer; 9-an external stabilizer; 10-a windward arc plate; 11-a plume arc plate; 12-an oil spraying port; 13-breathing holes; 14-a first axis of symmetry; 15-a second axis of symmetry; 16-bar.

Detailed Description

The present disclosure is described in further detail below with reference to the drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant content and not limiting of the present disclosure. It should be further noted that, for convenience of description, only a portion relevant to the present disclosure is shown in the drawings.

In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. FIG. 1 shows a prior art U-shaped baffle, after fuel is injected into the U-shaped baffle, fuel accumulation occurs at both the fuel injection contact point of the U-shaped baffle and the corner of the U-shaped baffle, which is unfavorable for the fuel crushing process.

Referring to fig. 2, the present invention provides a baffle for mixing oil and gas, the baffle is an annular baffle, the baffle has a windward side 1 and an oil-ward side opposite to the windward side 1, and at least one air hole 4 for air to pass through is provided between the windward side 1 and the oil-ward side; the windward side comprises two windward sides 2 protruding towards the windward side 1, the windward sides 2 are curved surfaces, each windward side 2 is provided with a first edge and a second edge opposite to the first edge, the first edges of the two windward sides 2 are connected, and the second edges of the two windward sides 2 are connected with two ends of the windward side 1; the first edge connection part of the two rolling surfaces 2 is an arc ridge 3, the arc ridge 3 is provided with a round edge line, the edge line of the arc ridge 3 is round as a whole, and the arc ridge 3 is used for dividing oil into two streams.

It will be appreciated that as shown in figures 2, 4 and 5, the windward side 1 and the swirl side 2 are annular sides, the first and second edges being rounded edges, the arcuate ridge 3 having a rounded edge line when the two first edges are connected together. It should be noted that, to clearly illustrate the structural features of the baffle assembly of the present invention, the baffle assembly shown in fig. 2 is not shown as a complete ring shape, but is an enlarged schematic view of a portion of the ring shape, and in fact, the baffle assembly has a complete ring structure; the stabilizer shown in fig. 4, 5 and 7 is not shown as a complete ring, but is an enlarged schematic view of only a part of the ring, and in fact, the inner stabilizer, the outer stabilizer and the injection pipe are all of a complete ring structure.

The fact that the swirl face 2 protrudes towards the windward side 1 and the swirl face 2 is a curved surface means that the generatrix of the swirl face 2 is a curved surface protruding towards the windward side 1, such as a parabola, an elliptic line and a circular arc line, therefore, when fuel is injected to the edge line of the arc ridge 3, the edge line divides the fuel into two streams, the two streams respectively move along the swirl face 2 to form a swirl, and the two streams fly out from the second edge along the tangential direction of the swirl face 2, so that the fuel is prevented from being accumulated on the swirl face 2.

Referring to fig. 3, the fuel oil sprayed out by the fuel injection pipe 7 collides with the arc ridge 3, the fuel oil is divided into two fuel oil beams by the arc ridge 3, the two fuel oil beams move along the curved surface of the swirl face 2 to form an oil film, a part of air entering the windward face 1 impacts a part of the oil film on the swirl face 2 through the air holes 4 and accelerates the oil film to be broken, and the other part of the oil film moves along the swirl face 2 to form a swirl to return, so that fuel oil accumulation is avoided; at the same time, the other part of air entering the windward side 1 moves against the windward side 1 and meets the returned oil film in a wake turbulence area, and the air and fuel are promoted to be mixed by using the turbulence effect.

In some embodiments, the space between the windward side 1 and the oil-ward side may be solid, which is suitable for integrated forming, and has strong structural stability, and the air hole 4 penetrates through the solid, and a part of air entering the windward side 1 enters the air hole 4 and is ejected from the rolling side 2, so as to impact the oil film on the rolling side 2, and break the oil film.

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

Referring to fig. 1, a windward side 1 of a U-shaped baffle in the prior art is in a flat plate structure, when passing through an upper channel and a lower channel of the U-shaped baffle, the air flow area is suddenly changed, and the air flow resistance is high; meanwhile, when air passes through the U-shaped baffle, boundary separation phenomenon occurs to the air, so that the fuel oil and the air are separated greatly, and the mixing of the air and the fuel oil is not facilitated.

In some embodiments, as shown in fig. 2 to 6, the windward side 1 may be a curved surface protruding in a direction away from the oil side, that is, a bus bar of the windward side 1 may be a curve, and may be any curve, for example, a parabola, an arc line, and, illustratively, the bus bar of the windward side 1 is an arc line, which is more convenient for manufacturing and is beneficial for reducing air flow resistance; the windward side 1 has third edges at both ends, and the second edge of each plume surface 2 is connected with the corresponding third edge, and the junction of the two second edges and the third edge is a convex pointed edge 5.

As shown in fig. 3, the connection part between the two second edges and the third edge is a convex pointed edge 5, so that the turbulent energy of air passing through can be enhanced, the air and an oil film enter into a turbulent flow area of the wake together, and the air and the fuel are more favorably fully mixed by utilizing the strong turbulent flow effect.

In some embodiments, the generatrix of the windward side 1 is tangential to the generatrix of the two plume sides 2, so as to form a convex tip-shaped edge 5, for example, the tip of the convex tip-shaped edge 5 is a rounded edge, that is, the rounded edge is tangential to the windward side 1 and the plume side 2 respectively, which is convenient for manufacturing, and meanwhile, by providing the rounded edge, a certain interval is provided between an oil film and air, so that fuel is prevented from accumulating on the second edge.

In some embodiments, the space between the windward side 1 and the oil-ward side is hollow, so as to reduce the weight of the baffle, as shown in fig. 2 to 6, a cavity is arranged between the windward side 1 and the two rolling sides 2, at least one ventilation pipe 6 is arranged in the cavity, and the ventilation pipe 6 is used for connecting and penetrating between the air holes 4 of the windward side 1 and the air holes 4 of the corresponding rolling sides 2. Specifically, the baffle plate includes a windward arc plate 10 and two rolling arc plates 11, the windward arc plate 10, the rolling arc plates 11 and the two rolling arc plates 11 can be welded and connected, and can also be integrally formed by casting or other modes, the surface of the windward arc plate 10 facing away from the rolling arc plates 11 is the windward surface 1, and the surface of the rolling arc plates 11 facing away from the windward arc plate 10 is the rolling surface 2; the ventilation pipe 6 can be respectively welded with the windward arc plate 10 and the rolling arc plate 11, or the three can be integrally formed by casting; the ventilation tube 6 increases the rigidity of the baffle, making the windward arc plate 10 and the plume arc plate 11 thinner, further reducing the weight of the baffle.

In fact, the diameter of the air hole 4 or the ventilation pipe 6 can be unchanged, or can be increased or decreased along the direction from the windward side 1 to the windward side 2; when the diameter of the air hole 4 or the ventilation pipe 6 becomes large in the direction from the windward side 1 to the windward side 2, the impact force of the air flow becomes weak, but the impact area becomes large; when the diameter of the air hole 4 or the ventilation pipe 6 is reduced along the direction from the windward side 1 to the windward side 2, the impact force of the air flow is increased, but the impact area is reduced, so that the diameter of the air hole 4 or the ventilation pipe 6 can be changed according to actual needs, and it is noted that the diameter of the ventilation pipe 6 refers to the hole of the ventilation pipe 6.

In some embodiments, when the space between the windward side 1 and the oil ward side is hollow, the baffle is further provided with at least one breathing hole 13, the breathing hole 13 is arranged on the windward side 1 and/or the swirl side 2, and the breathing hole 13 is used for communication between the cavity and the outer side of the baffle; when the breathing holes 13 are plural, the plural breathing holes 13 are uniformly distributed along the circumferential direction of the windward side 1. Through setting up breathing hole 13, intercommunication cavity and baffle outside make the atmospheric pressure in the cavity equal with the atmospheric pressure in the baffle outside to avoid leading to the baffle to warp because of inside and outside pressure difference. The breathing holes 13 can be round holes, square holes or holes with other shapes, only the breathing holes 13 can be communicated with the outer sides of the cavities and the baffle plates, the number of the breathing holes 13 can be set according to actual needs, one breathing hole 13 can be set, a plurality of breathing holes 13 can also be set, and when the plurality of breathing holes 13 are set, the plurality of breathing holes 13 are uniformly distributed along the circumferential direction of the windward arc plate 10.

In some embodiments, the baffle has a plurality of cross-sections distributed circumferentially along the baffle; as shown in fig. 3 and 6, the windward side 1 in each cross section is an arc-shaped windward line having a center and a first axis symmetry line 14 passing through the center; the arc ridge 3 formed by the two entrainment surfaces 2 has an edge line lying on the first axis of symmetry 14 of the respective windward line. Therefore, when the fuel is sprayed to the arc ridges 3, the arc ridges 3 uniformly distribute the fuel to the two entrainment surfaces 2, and the oil film is more easily broken by air. The radius of the windward line, namely the bus of the windward side 1 and/or the position of the center of the windward line on the first axisymmetric line 14 can be adjusted according to actual needs, so that the air flow resistance is properly increased, and the pressure and the flow rate of air entering the air hole 4 or the ventilation pipe 6 are both increased, thereby enhancing the oil film impact effect. It should be noted that, adjusting the position of the center of the windward line on the first axisymmetric line 14 means that, in each cross section, the distance between the edge line of the arc ridge 3 formed by the two rolling flow surfaces 2 and the windward line is L, and accordingly, the radius of the windward line is R, where L may be smaller than or equal to R, and at this time, as shown in fig. 6, the center of the windward line is located on the right side of the arc ridge 3, and L may also be greater than R; at this time, the center of the windward line is located on the left side of the arc ridge 3.

In some embodiments, the air hole 4 or the ventilation pipe 6 has a central line, and an included angle is formed between the central line and the first axisymmetric line 14, and the included angle is an acute angle, that is, an included angle alpha <90 ° in fig. 6, so that the direction of impact force applied to the oil film by air is divergent, and the oil film is dispersed and broken, thereby avoiding re-accumulation of the broken oil film and improving the breaking degree of the oil film.

In some embodiments, the swirl faces 2 are curved in the shape of an arc, and in each cross section, the arc segments of the two swirl faces 2 have a second axis of symmetry 15, the second axis of symmetry 15 coinciding with the first axis of symmetry 14 of the respective windward line. The two rolling surfaces 2 are symmetrically arranged relative to the second axis 15, and two bundles of fuel oil separated by the arc ridge 3 are uniformly distributed on the two rolling surfaces 2, so that the oil film breaking effect is improved.

In some embodiments, each of the scroll faces 2 has a first spacing between the air holes 4 proximate the first axis of symmetry 14, and each of the scroll faces 2 has a second spacing between the air holes 4 distal from the first axis of symmetry 14, the first spacing being less than the second spacing; or, when the air holes 4 provided in the swirl face 2 are uniformly distributed, the first interval is equal to the second interval. That is, as shown in fig. 7, the air holes 4 or the ventilation pipes 6 may be uniformly distributed, in which case the first interval is equal to the second interval; according to actual needs, more air holes 4 or ventilation pipes 6 are distributed near the oil injection point, and fewer air holes 4 or ventilation pipes 6 are distributed in the interval area of the oil injection point, at the moment, the first interval is smaller than the second interval, namely, the air holes 4 or ventilation pipes 6 near the oil injection point are distributed more densely, so that air impact force is concentrated near the oil injection point, and oil film breaking is further accelerated; the interval of the injection points is the orthographic projection area of the area between any two injection holes on the injection pipe 7 on the oil-facing surface. When the multiple rows of air holes 4 or the ventilation pipes 6 are radially arranged along the baffle, the air holes 4 or the ventilation pipes 6 may be staggered or non-staggered, and it should be noted that the staggered distribution refers to that the adjacent two rows of corresponding air holes 4 or ventilation pipes 6 are not in the same radial direction of the baffle, and the non-staggered distribution refers to that the adjacent two rows of corresponding air holes 4 or ventilation pipes 6 are in the same radial direction of the baffle.

The invention also aims to provide a baffle assembly, which comprises the baffle and the oil injection pipe 7, wherein the oil injection pipe 7 is an annular oil pipe, the oil injection pipe 7 is provided with a plurality of oil injection ports 12 arranged along the circumferential direction, and the oil injection ports 12 are opposite to the edge line of the arc ridge 3. The oil injection port 12 is opposite to the arc ridge 3, so that the fuel oil injected from the oil injection port 12 is ensured to be injected on the arc ridge 3, and the injected fuel oil is uniformly divided into two streams. Other technical effects of the baffle assembly are consistent with those of the baffle, and are not described herein.

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

The invention also aims to provide a stabilizer which is a thin film evaporation type on-duty stabilizer, and it is understood that the stabilizer is also applicable to other types of on-duty stabilizers. The stabilizer comprises an outer stabilizer 9 and an inner stabilizer 8, wherein 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, inner panel and planking all are the ring-type, from interior to exterior promptly, and inner panel, baffle subassembly, planking distribute in proper order, and interior stabilizer 8 is annular, and interior stabilizer 8 is located between inner panel and the planking, and interior stabilizer 8 is located the one side that spray pipe 7 deviates from the baffle. The technical effects of the stabilizer are consistent with those of the baffle assembly, and are not repeated here.

The outer stabilizer 9 may connect the inner plate and the outer plate by means of bracket welding, may respectively bracket-weld the inner plate and the outer plate with the baffle plate assembly, and may respectively bracket-weld the inner plate and the outer plate with the inner stabilizer 8, for example. The outer stabilizer 9 can be fixedly connected with the casing through 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 a bracket welding manner, specifically, taking the connection of the lower plate of the inner stabilizer 8 and the inner plate of the outer stabilizer 9 as an example, as shown in fig. 8, a plurality of rods 16 are arranged 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, two ends of each rod 16 are respectively welded with the lower plate of the inner stabilizer 8 and the inner plate of the outer stabilizer 9, 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 coincides with the connection between the lower plate of the inner stabilizer 8 and the inner plate of the outer stabilizer 9, and will not be described again here.

In other embodiments, as shown in fig. 9, the end of the upper plate facing away from the baffle assembly is a first annular saw tooth structure; the first annular saw-tooth structure comprises a plurality of first wave crest parts protruding towards the direction of the outer plate and a plurality of first wave trough parts protruding towards the direction of the lower plate, the plurality of first wave crest parts and the plurality of first wave trough parts are sequentially connected in a staggered way, the plurality of first wave crest parts are welded with the outer plate, and/or,

one end of the lower plate, which is away from the baffle plate assembly, is of a second annular sawtooth-shaped structure; the second annular sawtooth-shaped structure comprises a plurality of second wave crest portions protruding towards the direction of the upper plate and a plurality of second wave trough portions protruding towards the direction of the inner plate, the plurality of second wave crest portions and the plurality of second wave trough portions are sequentially connected in a staggered mode, and the plurality of second wave crest portions are welded with the inner plate.

The rear edge of the upper plate and the rear edge of the lower plate of the inner stabilizer 8 are both zigzag, and the crests or troughs of the zigzag are welded with the outer plate of the outer stabilizer 9 or the inner plate of the outer stabilizer 9, and the zigzag concave parts, namely the first trough part and the second crest part, are used for passing air.

The inner stabilizer is a V-shaped stabilizer and comprises an upper plate and a lower plate, wherein an included angle between the upper plate and the lower plate is beta which is more than or equal to 10 degrees and less than or equal to 160 degrees; and/or the outer stabilizer has an included angle between the inner plate and the outer plate of alpha, which is more than or equal to 10 degrees and less than or equal to 120 degrees. The included angle alpha and the included angle beta are too small, the flow resistance can be reduced, but the standing vortex effect is poor, the improvement of combustion efficiency and combustion stability is not facilitated, and the effect is opposite. However, the size matching condition of each part also has important influence on flow resistance, combustion efficiency and combustion stability, so that the included angle alpha and the included angle beta are required to be selected according to actual needs or simulation data. In some embodiments, included angle β may be selected from 30 °, 60 °, 90 °, 120 °, and 150 °, and included angle α may be selected from 30 °, 60 °, 90 °.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the present application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner 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/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

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

It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.

Claims (15)

1. The baffle is characterized by being used for mixing oil and gas, the baffle is an annular baffle, the baffle is provided with a windward side and an oil-ward side opposite to the windward side, and at least one air hole for air to pass through is arranged between the windward side and the oil-ward side;

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

the joint of the first edges of the two rolling surfaces is an arc ridge, the arc ridge is provided with a round edge line, and the arc ridge is used for dividing oil into two strands;

the wind turbine is characterized in that a cavity is arranged between the windward side and the two windward sides, at least one ventilation pipe is arranged in the cavity, and the ventilation pipe is used for connecting and communicating air holes of the windward side with corresponding air holes of the windward side.

2. The baffle plate of claim 1, wherein the windward side is a curved surface protruding in a direction away from the oil-ward side, and both ends of the windward side are provided with third edges, and each of the rolling surfaces is provided with a second edge connected with the corresponding third edge, and a connection part between the two second edges and the third edge is a convex pointed edge.

3. The baffle of claim 2, wherein the tip of the pointed edge is a rounded edge.

4. The baffle plate of claim 1, wherein the diameter of said air hole or said ventilation pipe is increased in a direction from said windward side to said windward side, or,

along the direction from the windward side to the rolling side, the diameter of the air hole or the ventilation pipe becomes smaller, or,

the diameter of the air hole or the ventilation pipe is unchanged along the direction from the windward side to the rolling side.

5. The baffle according to claim 1, further comprising at least one breathing hole provided in the windward and/or the swirl face, the breathing hole being for communication of the cavity with the outside of the baffle;

when the number of the breathing holes is multiple, the breathing holes are uniformly distributed along the circumference of the windward side.

6. The baffle of claim 1, wherein the baffle has a plurality of cross-sections distributed circumferentially along the baffle;

the windward side in each cross section is an arc windward line, and the arc windward line is provided with a circle center and a first axisymmetric line passing through the circle center;

the edge line of the arc ridge formed by the two rolling surfaces is positioned on the first axisymmetric line of the windward line.

7. The baffle plate of claim 6 wherein said air hole or said air tube has a centerline, said centerline having an included angle with said first axis of symmetry, said included angle being an acute angle.

8. The baffle plate of claim 6, wherein said flow-rolling surfaces are arcuate curved surfaces, and wherein in each of said cross-sections, the arcuate sections of both of said flow-rolling surfaces have a second axis of symmetry which coincides with the first axis of symmetry of the corresponding windward line.

9. The baffle of claim 6 wherein, in each of said cross-sections, the arcuate ridges formed by two of said swirl faces have an edge line to said windward line spacing L, and the radius of said windward line is R, where l.ltoreq.r, or L > R.

10. The baffle of claim 6 wherein each of said swirl faces has a first spacing between air holes adjacent said first axis of symmetry and a second spacing between air holes spaced apart from said first axis of symmetry, said first spacing being less than said second spacing; or alternatively, the first and second heat exchangers may be,

when the air holes of the rolling surface are uniformly distributed, the first interval is equal to the second interval.

11. A baffle assembly, comprising the baffle plate as claimed in any one of claims 1 to 10, an oil spray pipe,

the oil injection pipe is an annular oil 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.

12. The baffle assembly of claim 11 further comprising a first bracket disposed between the injection bar and the edge line of the arcuate ridge, the injection bar and the arcuate ridge being fixedly connected by the first bracket, the first bracket including a plurality of connecting rods circumferentially distributed along the injection bar, the connecting rods being staggered from the corresponding injection ports at the location of the injection bar.

13. A stabilizer, characterized in that the stabilizer is a thin film evaporation type on 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 claim 11 or 12.

14. The stabilizer of claim 13, wherein the inner stabilizer is annular, the cross section of the inner stabilizer is V-shaped, the inner stabilizer comprises an upper plate and a lower plate, and 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 number of the groups of groups,

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

15. The stabilizer of claim 14, wherein an end of the upper plate facing away from the baffle assembly is a first annular serrated structure; the first annular saw-tooth structure comprises a plurality of first wave crest parts protruding towards the outer plate and a plurality of first wave trough parts protruding towards the lower plate, the plurality of first wave crest parts and the plurality of first wave trough parts are sequentially connected in a staggered way, the plurality of first wave crest parts are welded with the outer plate, and/or,

one end of the lower plate, which is away from the baffle plate assembly, is of a second annular sawtooth-shaped structure; the second annular sawtooth-shaped structure comprises a plurality of second wave crest portions protruding towards the direction of the upper plate and a plurality of second wave trough portions protruding towards the direction of the inner plate, the second wave crest portions and the second wave trough portions are sequentially connected in a staggered mode, and the second wave crest portions are welded with the inner plate.

Images