阅读说明：本技术 一种蒸发式稳定器结构 (Evaporation formula stabilizer structure ) 是由 文清兰 舒庆 张琪 周开福 周公铜 王亚 于 2021-08-19 设计创作，主要内容包括：一种蒸发式稳定器结构,包括壳体和汽化器；所述壳体为横截面呈V型的槽状结构；所述汽化器包括油气口和蒸发管；所述油气口设置所述壳体上；所述蒸发管分布在所述壳体的槽体内,且所述蒸发管与所述壳体槽底之间具有间隙；所述蒸发管与所述油气口连通；蒸发管上均布设置有多个蒸发孔。在本发明中,壳体与汽化器为分体式结构,蒸发管与壳体也为分体式结构,便于对蒸发管上蒸发孔进行钻孔加,提高了蒸发管上蒸发孔的加工效率、避免了采用电火花加工蒸发孔带来的影响,降低了加工导致的应力；另外,通过分体式结构设计,蒸发管与壳体之间存在间隙,允许稳定器的壳体在工作状态有一定的热膨胀空间；整体上提高了稳定器的可靠性。(An evaporative stabiliser structure comprising a housing and a vaporiser; the shell is of a groove-shaped structure with a V-shaped cross section; the vaporizer comprises an oil gas port and an evaporation tube; the oil gas port is arranged on the shell; the evaporation tubes are distributed in the groove body of the shell, and a gap is formed between the evaporation tubes and the bottom of the shell groove; the evaporation pipe is communicated with the oil gas port; a plurality of evaporation holes are uniformly distributed on the evaporation tube. In the invention, the shell and the vaporizer are of a split structure, and the evaporation tube and the shell are also of a split structure, so that the evaporation hole on the evaporation tube can be drilled conveniently, the processing efficiency of the evaporation hole on the evaporation tube is improved, the influence caused by processing the evaporation hole by adopting electric spark is avoided, and the stress caused by processing is reduced; in addition, through the split structure design, a gap exists between the evaporation tube and the shell, and a certain thermal expansion space is allowed for the shell of the stabilizer in a working state; the reliability of the stabilizer is improved as a whole.)

1. An evaporative stabiliser structure comprising a housing (10) and a vaporiser (20); the shell (10) is of a groove-shaped structure with a V-shaped cross section;

the carburetor comprises an oil gas port (30) and an evaporation pipe (40);

the oil gas port (30) is arranged on the shell (10);

the evaporation tubes (40) are distributed in a groove body of the shell (10), and a gap is formed between the evaporation tubes (40) and the bottom of the shell (10); the evaporation pipe (40) is communicated with the oil gas port (30); a plurality of evaporation holes (41) are uniformly distributed on the evaporation tube (40).

2. An evaporative stabilizer structure as defined in claim 1, wherein: a limiting block (50) used for adjusting the gap between the evaporation tube (40) and the bottom of the shell (10) and fixing the evaporation tube (40) is arranged between the evaporation tube (40) and the bottom of the shell (10); the clearance between the evaporation tube (40) and the bottom of the shell (10) is 3-4 mm.

3. An evaporative stabilizer structure as defined in claim 2, wherein: a stop block mounting hole (11) is formed in the bottom of the shell (10); one side of the limiting block (50) is welded with the evaporation tube (40), and the other side of the limiting block is inserted into the limiting block mounting hole (11) and is welded and fixed.

4. An evaporative stabilizer structure as defined in claim 1, wherein: on the cross section, the included angle of the axes of the two evaporation holes (41) is the same as that of the two side walls of the V-shaped groove body of the shell (10), and the included angle is 60 degrees.

5. An evaporative stabilizer structure as claimed in any one of claims 1 to 4, wherein: the shell (10) comprises a first shell part (101) and a second shell part (102), wherein the first shell part (101) is in a cross shape, and the second shell part (102) is in an inverted T shape; the first shell part (101) and the second shell part (102) are integrally formed into a Y-shaped shell (10) by adopting a high-temperature alloy plate in a stamping and forming mode; an end cap (12) is welded to each end of the housing (10).

6. An evaporative stabilizer structure as defined in claim 5, wherein: the evaporation tube (40) comprises an outward extending radial evaporation tube (401), a circumferential evaporation tube (402) and an inward extending radial evaporation tube (403);

the oil port (30) comprises a first oil port (31) and a second oil port (32);

the vaporizer (20) comprises a first vaporizer assembly (201) and a second vaporizer assembly (202);

the first vaporizer component (201) comprises a cross-shaped component formed by a first oil gas port (31), an outward extending radial evaporation pipe (401), a circumferential evaporation pipe (402) and an inward extending radial evaporation pipe (403);

the second vaporizer component (202) comprises an inverted T-shaped component consisting of a second oil gas port (32), an outward extending radial evaporation pipe (401) and a circumferential evaporation pipe (402), wherein the second oil gas port (32) is respectively communicated with the outward extending radial evaporation pipe (401) and the circumferential evaporation pipe (402);

the first vaporizer assembly (201) is arranged in a trough of the first housing part (101); the second vaporizer assembly (202) is disposed within a tank of the second housing portion (102).

7. An evaporative stabilizer structure as defined in claim 6, wherein: the diameters of evaporation holes (41) on the outward extending radial evaporation pipe (401) and the circumferential evaporation pipe (402) are 2.0 mm; the diameter of an evaporation hole (41) of the area of the inward extending radial evaporation pipe (403) close to the first oil gas port (31) is 2.0mm, and the diameter of an evaporation hole (41) of the area far away from the first oil gas port (31) is 1.5 mm.

8. An evaporative stabilizer structure as defined in claim 6, wherein: in the first vaporizer assembly (201), a partition plate (313) is arranged inside the first oil gas port (31) to divide the first oil gas port (31) into an upper oil gas port (311) and a lower oil gas port (312);

the upper oil gas port (311) is communicated with the outward radial evaporation pipe (401) and the circumferential evaporation pipe (402);

the lower oil gas port (312) is communicated with the inward extending radial evaporation pipe (403).

9. An evaporative stabilizer structure as defined in claim 6, wherein: a waist-shaped hole is formed in the first shell part (101), and the first oil air port (31) is inserted into the waist-shaped hole and welded and fixed; a round hole is formed in the second shell portion (102), and the second oil air port (32) is inserted into the round hole and welded and fixed.

10. An evaporative stabilizer structure as defined in claim 1, wherein: the evaporation tube (40) is made of a high-temperature alloy tube, the evaporation holes (41) are made by drilling, and the oil gas port (30) is connected with the evaporation tube (40) in a welding mode.

Technical Field

The invention belongs to the technical field of aero-engine design, and particularly relates to an evaporative stabilizer structure.

Background

The flame stabilizer in the afterburner plays an important role in stabilizing an ignition source in high-speed airflow, stabilizing tissue combustion, flame propagation in a cross-flame mode and the like. The common evaporative stabilizer structure is provided with an evaporation tube, and when the afterburner is in a small afterburning working state, a small part of fuel oil is directly supplied into the evaporation tube. The fuel oil is acted by wall surface heat in the evaporating pipe, most of the fuel oil is evaporated into gas and then is sprayed out from the small holes of the evaporating pipe, so that the fuel oil is uniformly distributed in the radial and circumferential ranges of the stabilizer, and the aims of promoting atomization, evaporation and mixing of the fuel oil are fulfilled. Thus evaporative stabilisers offer the advantage of a wider lean operating range than other types of stabilisers, whilst burning relatively more stably at low pressure conditions.

However, compared with other types of stabilizers, the evaporative stabilizer has a relatively complex structure in the overall structure, and most of common evaporative stabilizers are cast integrally formed structures. Because evaporating pipe and stabilizer casing integrated into one piece, and there is certain angle requirement in the evaporation orifice, lead to the hole on the evaporating pipe can't adopt traditional drilling mode, must adopt the electric spark mode of punching, the cycle of punching is longer, and electric spark punches and makes the hole edge produce the remelting layer, causes local machining stress, easily makes the stabilizer crack that sprouts under high temperature operating mode. In addition, because the stabilizer has a large temperature gradient in a working state, the thermal expansion of the shell of the stabilizer is restrained by the evaporation tube and cannot be released by adopting casting integral forming, and further faults such as cracks, fractures and the like are caused.

Disclosure of Invention

The main purpose of the present invention is to provide an evaporative stabilizer structure, which aims to solve the above technical problems.

In order to achieve the above object, the present invention provides an evaporative stabilizer structure, comprising a housing and a vaporizer; the shell is of a groove-shaped structure with a V-shaped cross section; the vaporizer comprises an oil gas port and an evaporation tube; the oil gas port is arranged on the shell; the evaporation tubes are distributed in the groove body of the shell, and a gap is formed between the evaporation tubes and the bottom of the shell groove; the evaporation pipe is communicated with the oil gas port; a plurality of evaporation holes are uniformly distributed on the evaporation tube.

Preferably, a stopper used for adjusting the gap between the evaporation tube and the bottom of the shell groove and fixing the evaporation tube is arranged between the evaporation tube and the bottom of the shell groove; the clearance between the evaporation tube and the bottom of the shell is 3-4 mm.

Preferably, a stop block mounting hole is arranged on the bottom of the groove of the shell; one side of the limiting block is welded with the evaporation tube, and the other side of the limiting block is inserted in the limiting block mounting hole and is welded and fixed.

Preferably, in the cross section, the included angle between the axes of the two evaporation holes is the same as the included angle between the two side walls of the V-shaped groove body of the shell, and the included angle is 60 degrees.

Preferably, the housing comprises a first housing part and a second housing part, the first housing part is in a cross shape, and the second housing part is in an inverted T shape; the first shell part and the second shell part are integrally formed into a Y-shaped shell by adopting high-temperature alloy plates in a stamping and forming mode; end caps are welded to each end of the housing.

Preferably, the evaporation tube comprises an outward extending radial evaporation tube, a circumferential evaporation tube and an inward extending radial evaporation tube; the oil gas port comprises a first oil gas port and a second oil gas port; the vaporizer comprises a first vaporizer assembly and a second vaporizer assembly; the first vaporizer component comprises a first oil gas port, a cross-shaped component formed by an outward extending radial evaporating pipe, a circumferential evaporating pipe and an inward extending radial evaporating pipe; the second vaporizer component comprises an inverted T-shaped component consisting of a second oil gas port, an outward extending radial evaporation pipe and a circumferential evaporation pipe, and the second oil gas port is respectively communicated with the outward extending radial evaporation pipe and the circumferential evaporation pipe; the first vaporizer assembly is arranged in a groove body of the first shell part; the second vaporizer assembly is disposed within a trough of the second housing portion.

Preferably, the diameters of the evaporation holes on the outward extending radial evaporation pipe and the circumferential evaporation pipe are 2.0 mm; the diameter of the evaporation hole of the area of the inward extending radial evaporation pipe close to the first oil gas port is 2.0mm, and the diameter of the evaporation hole of the area far away from the first oil gas port is 1.5 mm.

Preferably, in the first vaporizer assembly, a partition plate is arranged inside the first oil gas port to divide the first oil gas port into an upper oil gas port and a lower oil gas port; the upper oil gas port is communicated with the outward extending radial evaporation pipe and the annular evaporation pipe; the lower oil gas port is communicated with the inward extending radial evaporation pipe.

Preferably, a waist-shaped hole is formed in the first housing part, and the first oil gas port is inserted into the waist-shaped hole and welded and fixed; and a round hole is formed in the second shell part, and the second oil gas port is inserted in the round hole and is welded and fixed.

Preferably, the evaporating pipe is made of a high-temperature alloy pipe, the evaporating hole is made by drilling, and the oil gas port is connected with the evaporating pipe in a welding mode.

The invention has the beneficial effects that:

(1) in the invention, the shell and the vaporizer are of a split structure, and the evaporation tube and the shell are also of a split structure, so that the evaporation hole on the evaporation tube can be drilled conveniently, the processing efficiency of the evaporation hole on the evaporation tube is improved, the influence caused by processing the evaporation hole by adopting electric spark is avoided, and the stress caused by processing is reduced; in addition, through the split structure design, a gap exists between the evaporation tube and the shell, and a certain thermal expansion space is allowed for the shell of the stabilizer in a working state; the reliability of the stabilizer is improved as a whole.

(2) In the invention, the limiting block is arranged, so that the gap between the evaporating pipe and the bottom of the shell can be conveniently adjusted during assembly, and the evaporating pipe can be conveniently fixed. The specific operation is that the limiting block is welded on the evaporating pipe, the limiting block is inserted in the limiting block mounting hole, the limiting block is welded with the limiting block mounting hole on the shell after the gap between the evaporating pipe and the bottom of the shell is adjusted, and the gap between the evaporating pipe and the bottom of the shell can be ensured.

(3) In the invention, the angle of the evaporation hole is matched with the included angle of two side walls of the V-shaped groove body on the shell to jointly act to form a stable backflow area, thereby playing a role in stabilizing flame.

(4) The vaporizer adopts split type structure, can control the oil gas flow of first vaporizer subassembly and second vaporizer subassembly respectively, guarantees the even purpose of whole stabilizer during operation oil gas distribution.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a front view of an evaporative stabilizer structure provided by the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a front view of a housing in an evaporative stabilizer structure provided by the present invention;

fig. 4 is a schematic view of a first vaporizer assembly in an evaporative stabilizer configuration according to the present invention;

FIG. 5 is a cross-sectional view taken at B-B or C-C of FIG. 4;

FIG. 6 is a cross-sectional view taken at D-D of FIG. 4;

FIG. 7 is a schematic view of a second vaporizer assembly in an evaporative stabilizer structure according to the present invention

Fig. 8 is a schematic diagram of a back reflux area of an evaporative stabilizer structure provided by the present invention;

description of reference numerals: 10-a housing; 11-a stop block mounting hole; 12-an end cap; 101-a first housing part; 102-a second housing part; 20-a vaporizer; 201-a first vaporizer assembly; 202-a second vaporizer assembly; 30-oil gas port; 31-a first oil port; 311-upper oil gas port; 312-lower oil gas port; 313-a spacer; 32-a second oil gas port; 40-an evaporation tube; 41-evaporation hole; 401-extending radial evaporating tubes; 402-circumferential evaporation tubes; 403-inward extending radial evaporation tubes; 50-stop block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are 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 addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, an embodiment of an evaporative stabilizer structure provided in the present invention includes: a housing 10 and a vaporizer 20; the shell 10 is of a groove-shaped structure with a V-shaped cross section;

the carburetor comprises an oil gas port 30 and an evaporation pipe 40 connected to the oil gas port 30; the oil port 30 is provided on the casing 10; the evaporation tubes 40 are distributed in the groove body of the shell 10, and a gap is formed between the evaporation tubes 40 and the groove bottom of the shell 10; the evaporation tube 40 is communicated with the oil gas port 30; a plurality of evaporation holes 41 are uniformly distributed on the evaporation tube 40.

As shown in fig. 2 and 3, a stopper 50 for adjusting a gap between the evaporation tube 40 and the bottom of the shell 10 and fixing the evaporation tube 40 is provided between the evaporation tube 40 and the bottom of the shell 10; the clearance between the evaporation tube 40 and the bottom of the shell 10 is 3-4 mm. The clearance is arranged, so that a certain thermal expansion space is formed between the evaporating tube 40 and the shell 10 in the working state, and the clearance between the evaporating tube 40 and the shell 10 is conveniently adjusted by arranging the limiting block 50 when the evaporating tube 40 is assembled with the shell 10. A stop block mounting hole 11 is formed in the bottom of the shell 10; one side of the limiting block 50 is welded with the evaporation tube 40, and the other side of the limiting block is inserted in the limiting block mounting hole 11 and is welded and fixed. The specific assembly process is as follows: firstly, the limiting block 50 is welded on the evaporation tube 40, the limiting block 50 is inserted in the limiting block mounting hole 11, the gap between the evaporation tube 40 and the bottom of the shell 10 is adjusted to be 3-4 mm, and then the limiting block 50 is welded with the limiting block mounting hole 11 on the shell 10, so that the gap between the evaporation tube 40 and the bottom of the shell 10 can be ensured.

As shown in fig. 5, 6 and 8, in the cross section, the included angle between the axes of the two evaporation holes 41 is the same as the included angle between the two side walls of the V-shaped groove on the housing 10, and the included angle is 60 degrees. The angle of the evaporation hole 41 is matched with the included angle of the two side walls of the V-shaped groove body on the shell 10 to jointly act to form a stable backflow area, so that the flame is stabilized.

As shown in fig. 3, the housing 10 includes a first housing part 101 and a second housing part 102, the first housing part 101 is cross-shaped, and the second housing part 102 is inverted T-shaped; the first shell part 101 and the second shell part 102 are integrally formed into a Y-shaped shell 10 by high-temperature alloy plates in an impact molding manner; an end cap 12 is welded to each end of the housing 10. When the stabilizer is used, the evaporative stabilizer structure provided by the invention forms an annular stabilizer assembly, the shell 10 is provided with the first shell part 101 and the second shell part 102, the first shell part 101 is in a cross shape, the second shell part 102 is in an inverted T-shaped structure, and the second shell part 102 is positioned between two adjacent first shell parts 101 during assembly, so that the formed whole annular stabilizer assembly structure is more compact.

As shown in fig. 1 to 7, the evaporation tube 40 includes an outward radial evaporation tube 401, a circumferential evaporation tube 402 and an inward radial evaporation tube 403; the oil ports 30 include a first oil port 31 and a second oil port 32; the vaporizer 20 comprises a first vaporizer assembly 201 and a second vaporizer assembly 202; the first vaporizer component 201 comprises a cross-shaped component consisting of a first oil port 31, an outward extending radial evaporation pipe 401, a circumferential evaporation pipe 402 and an inward extending radial evaporation pipe 403; the second vaporizer assembly 202 comprises an inverted T-shaped assembly consisting of a second oil gas port 32, an outward extending radial evaporation pipe 401 and a circumferential evaporation pipe 402, wherein the second oil gas port 32 is respectively communicated with the outward extending radial evaporation pipe 401 and the circumferential evaporation pipe 402; the first vaporizer assembly 201 is disposed within a channel of the first housing portion 101; the second vaporizer assembly 202 is disposed within a tank of the second housing portion 102. The vaporizer 20 adopts a split structure and is divided into a first vaporizer assembly 201 and a second vaporizer assembly 202, so that the vaporizer 20 can be conveniently processed and manufactured, and meanwhile, the structural properties of the first vaporizer assembly 201 and the second vaporizer assembly 202 are respectively matched with the properties of the first housing part 101 and the second housing part 102, so that the vaporizer 20 and the housing 10 can be conveniently installed. In addition, the vaporizer 20 adopts a split structure, and can respectively control the oil-gas flow of the first vaporizer component 201 and the second vaporizer component 202, so as to ensure the purpose of uniform oil-gas distribution when the whole stabilizer works.

The diameters of the evaporation holes 41 on the outward extending radial evaporation pipe 401 and the circumferential evaporation pipe 402 are 2.0 mm; the diameter of the evaporation hole 41 of the inward-extending radial evaporation tube 403 in the area close to the first oil port 31 is 2.0mm, and the diameter of the evaporation hole 41 in the area far from the first oil port 31 is 1.5 mm. When the stabilizer is used, an annular stabilizer assembly is formed by the evaporative stabilizer structure provided by the invention, one end of the inward extending radial evaporation pipe 403 close to the central position of the annular stabilizer assembly is relatively dense, and the other end far away from the central position is relatively sparse, so that the inward extending radial evaporation pipe 403 is provided with two evaporation holes 41 with different diameters in different areas, the air inlet areas in different areas can be controlled, the purpose of controlling the air inflow of oil gas is achieved, and the oil gas is uniformly distributed.

As shown in fig. 2, in the first vaporizer assembly 201, a partition 313 is provided inside the first oil gas port 31 to divide the first oil gas port 31 into an upper oil gas port 311 and a lower oil gas port 312; the upper oil gas port 311 is communicated with the outward radial evaporation pipe 401 and the circumferential evaporation pipe 402; the lower oil gas port 312 is communicated with the inward extending radial evaporation pipe 403. Dividing the first oil gas port 31 into an upper oil gas port 311 and a lower oil gas port 312. The upper oil gas port 311 and the lower oil gas port 312 can be respectively used for being connected with different air inlet nozzles, so that the air input of the upper oil gas port 311 and the air input of the lower oil gas port 312 can be conveniently and respectively adjusted.

As shown in fig. 2 and 3, a waist-shaped hole is formed in the first housing part 101, and the first oil air opening 31 is inserted into the waist-shaped hole and welded and fixed; a circular hole is provided in the second housing portion 102, and the second oil port 32 is inserted into the circular hole and welded. The housing 10 is provided with a waist-shaped hole and a circular hole, which is convenient for the first oil gas port 31 and the second oil gas port 32 to be installed and welded and fixed with the housing 10.

The evaporating pipe 40 is made of a high-temperature alloy pipe, the evaporating hole 41 is made of a drilling hole, and the oil gas port 30 is connected with the evaporating pipe 40 in a welding mode. Because the axes of the two evaporation holes 41 on the same cross section have the angle requirement, the drilling processing operation is simple, and the processing efficiency of the evaporation tube 40 is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.