Anti-vibration ring device with replaceable inner wall and combustion chamber component

Abstract

The invention provides an anti-vibration ring device with a replaceable inner wall and a combustion chamber component, and relates to the field of gas turbines. The anti-vibration ring device comprises a rotational flow channel outer ring, a center body, a swirler, an anti-vibration ring end wall inner wall, an anti-vibration ring end wall outer wall and a flame tube. The center body is arranged in the rotational flow channel outer ring. And the cyclone is arranged in the cyclone channel outer ring. An acute included angle is formed between the outer wall of the end wall of the anti-vibration ring and the central axis of the center body, and an acute included angle is formed between the inner wall of the end wall of the anti-vibration ring and the central axis of the center body. Due to the fact that the side, close to the rotational flow channel outer ring, of the anti-vibration ring end wall outer wall is detachably connected with one side of the anti-vibration ring end wall inner wall, the anti-vibration ring end wall outer wall and the anti-vibration ring end wall inner wall with different parameters can be replaced, and optimization of relevant structure parameters of the anti-vibration ring end wall outer wall and the anti-vibration ring end wall inner wall is achieved. Furthermore, the flowing and flame characteristics in the combustion chamber are optimized, the flame stabilizing capacity in the combustion chamber is enhanced, the flame is stabilized in the anti-vibration ring, and finally combustion oscillation is regulated and controlled.

Description

Technical Field

[0001] The invention relates to the field of gas turbines, and in particular to an anti-vibration ring device with replaceable inner wall and a combustion chamber component. Background Art

[0002] Gas turbines are one of the important equipment in today's energy and power field, and are widely used in aviation, navigation and power generation industries. Among them, the gas turbine combustion chamber is the core component and power source of the entire gas turbine. However, with increasingly stringent pollutant emission requirements, in order to reduce the emission of pollutants mainly composed of nitrogen oxides (NOx), advanced gas turbine combustion chambers mostly use lean oil premixed combustion technology. The combustion chamber often operates in a working state close to flameout, which is very sensitive to external disturbances and easily affected by external disturbances, resulting in heat release rate pulsation. When the heat release rate pulsation in the burner is coupled with the acoustics of the combustion system (which can be simply understood as satisfying the Rayleigh criterion), it is easy to cause large heat release rate pulsation and pressure pulsation. The large pressure pulsation and heat release pulsation in the combustion chamber may cause structural damage to the combustion chamber, which may affect the stable operation and safe operation of the combustion chamber and even the gas turbine system. Therefore, combustion oscillation is something that modern advanced gas turbines must try their best to avoid.

[0003] In order to solve the combustion oscillation problem in the combustion chamber of a gas turbine, a variety of methods have been proposed and applied to control combustion oscillation. According to different principles, they can be divided into two categories: active control and passive control. Active control is to use a special signal monitor to monitor the pressure pulsation or heat release pulsation in the combustion chamber. According to the monitored pressure pulsation and other signals, the corresponding actuator is used to apply appropriate external excitation (to the inlet air or fuel supply, etc.) to suppress or eliminate the coupling between the heat release rate pulsation and the pressure oscillation (sound wave). However, this type of method requires additional control systems and actuators, and has high requirements for control algorithms, which will increase additional costs and have limited applicable scenarios. Passive control refers to adding certain fixed devices to the combustion system to suppress or eliminate combustion oscillations. Common types of acoustic components, such as Helmholtz resonators, can suppress combustion oscillations of specific frequencies. The disadvantage is that it is large in size, is only effective for specific frequencies, and requires a lot of experiments and debugging.

[0004] The existing combustion chamber end wall structure mostly adopts a sudden expansion structure perpendicular to the swirl flow channel, which will produce an angle vortex recirculation zone. The angle vortex recirculation zone is the main cause of combustion oscillation in the traditional gas turbine combustion chamber. The traditional method of controlling combustion oscillation has the problems of complex system, high requirements on components and algorithms, and limited application scenarios. Summary of the invention

[0005] The present invention provides an anti-vibration ring device with a replaceable inner wall, which is used to solve the problems of the existing control method, such as complex system, high requirements on components and algorithms, and limited applicable scenarios.

[0006] The present invention provides an anti-vibration ring device with a replaceable inner wall, comprising: An outer ring of a swirl channel; A central body, arranged inside the outer ring of the swirl channel; A cyclone, arranged inside the outer ring of the cyclone channel and connected to the central body; An inner wall of the end wall of the vibration-proof ring, one side of which is sleeved on the outer peripheral surface of one end of the outer ring of the swirl channel; An outer wall of the end wall of the vibration-proof ring, the outer wall of the end wall of the vibration-proof ring is arranged around the outer periphery of the inner wall of the end wall of the vibration-proof ring, a side of the outer wall of the end wall of the vibration-proof ring close to the outer ring of the swirl channel is detachably connected to a side of the inner wall of the end wall of the vibration-proof ring, and both the outer wall of the end wall of the vibration-proof ring and the inner wall of the end wall of the vibration-proof ring form an acute angle with the central axis of the central body; The flame tube is connected to the flame tube at a side of the outer wall of the end wall of the vibration-proof ring away from the outer ring of the swirl channel.

[0007] According to a vibration-proof ring device with a replaceable inner wall provided by the present invention, the angle between the inner wall of the vibration-proof ring end wall and the central axis of the central body is α, the angle between the outer wall of the vibration-proof ring end wall and the central axis of the central body is β, 0°≤α≤90°, 0°≤β≤90°, and -5°≤α-β≤+5°.

[0008] According to a vibration-proof ring device with a replaceable inner wall provided by the present invention, the central axis of the outer wall of the end wall of the vibration-proof ring and the central axis of the inner wall of the end wall of the vibration-proof ring are in the same straight line.

[0009] According to a vibration-proof ring device with a replaceable inner wall provided by the present invention, an inner wall of one side of the inner wall of the vibration-proof ring end wall is provided with a vibration-proof ring inlet, the radius of the vibration-proof ring inlet is r, and the width of the outer wall of the vibration-proof ring end wall in the length direction of the central axis of the cyclone is L1, 0≤L1 / r≤2.

[0010] According to an anti-vibration ring device with a replaceable inner wall provided by the present invention, the width of the inner wall of the anti-vibration ring end wall in the length direction of the central axis of the cyclone is L2, 0≤L2 / r≤2, and 0≤L2 / L1≤1.

[0011] According to a vibration-proof ring device with a replaceable inner wall provided by the present invention, at least one circle of impact hole groups is arranged on the side of the outer wall of the end wall of the vibration-proof ring close to the outer ring of the swirl channel, and the impact hole group includes a plurality of impact holes, and the plurality of impact holes are arranged at intervals along the circumferential direction; at least one circle of multi-inclined hole groups is arranged on the side of the outer wall of the end wall of the vibration-proof ring away from the outer ring of the swirl channel, and the multi-inclined hole group includes a plurality of multi-inclined holes, and the plurality of multi-inclined holes are arranged at intervals along the circumferential direction.

[0012] According to a vibration-proof ring device with a replaceable inner wall provided by the present invention, the central axis of the impact hole is perpendicular to the outer surface of the inner wall of the vibration-proof ring end wall, and the central axis of the multiple inclined holes is parallel to the central axis of the central body.

[0013] According to the vibration-proof ring device with replaceable inner wall provided by the present invention, the impact holes of at least one circle of the impact hole group and the multi-inclined holes of at least one circle of the multi-inclined hole group are alternately arranged along the circumferential direction.

[0014] According to a vibration-proof ring device with a replaceable inner wall provided by the present invention, a side of the outer wall of the vibration-proof ring end wall close to the outer ring of the swirl channel is connected to a side of the inner wall of the vibration-proof ring end wall by threads, screws or mortise and tenon.

[0015] The present invention also provides a combustion chamber component, comprising the anti-vibration ring device with replaceable inner wall as described in any one of the above items.

[0016] The vibration-proof ring device with replaceable inner wall provided by the present invention makes the outer wall of the vibration-proof ring end wall and the inner wall of the vibration-proof ring end wall form an acute angle with the central axis of the central body to reduce the formed angular vortex recirculation area; because the side of the outer wall of the vibration-proof ring end wall close to the outer ring of the swirl channel is detachably connected to the side of the inner wall of the vibration-proof ring end wall, the outer wall of the vibration-proof ring end wall and the inner wall of the vibration-proof ring end wall with different parameters can be replaced, so as to optimize the relevant structural parameters of the outer wall of the vibration-proof ring end wall and the inner wall of the vibration-proof ring end wall, thereby optimizing the flow and flame characteristics in the combustion chamber, enhancing the flame stabilization ability in the combustion chamber, stabilizing the flame in the vibration-proof ring, and finally realizing the regulation of combustion oscillation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic cross-sectional structure diagram of the anti-vibration ring device with replaceable inner wall provided by the present invention.

[0019] Figure 2It is a schematic diagram of the main structure of the inner wall of the anti-vibration ring end wall and the outer wall of the anti-vibration ring end wall provided by the present invention.

[0020] Figure 3 It is one of the side cross-sectional structural schematic diagrams of the inner wall of the anti-vibration ring end wall and the outer wall of the anti-vibration ring end wall provided by the present invention.

[0021] Figure 4 yes Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0022] Figure 5 It is one of the side cross-sectional structural schematic diagrams of the inner wall of the anti-vibration ring end wall and the outer wall of the anti-vibration ring end wall provided by the present invention.

[0023] Reference numerals: 100, outer ring of swirl channel; 200, center body; 300, swirler; 400, inner wall of anti-vibration ring end wall; 410, inlet of anti-vibration ring; 500, outer wall of anti-vibration ring end wall; 510, impact hole; 520, multiple inclined holes; 600, flame tube. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0029] Combine the following Figure 1-Figure 5 The specific structure and working principle of the anti-vibration ring device with replaceable inner wall of the present invention are described.

[0030] Figure 1 The cross-sectional structure diagram of the replaceable inner wall anti-vibration ring device provided by the present invention is illustrated. Figure 2 The schematic diagram of the main structure of the inner wall of the anti-vibration ring end wall and the outer wall of the anti-vibration ring end wall provided by the present invention is illustrated as follows: Figure 1 and Figure 2As shown, the vibration-proof ring device with replaceable inner wall comprises a swirl channel outer ring 100, a center body 200, a swirler 300, a flame tube 600, an inner wall 400 of the vibration-proof ring end wall and an outer wall 500 of the vibration-proof ring end wall. The center body 200 is arranged inside the swirl channel outer ring 100; the swirler 300 is arranged inside the swirl channel outer ring 100 and connected to the center body 200. One side of the inner wall 400 of the vibration-proof ring end wall is sleeved on the outer peripheral surface of one end of the swirl channel outer ring 100. The outer wall 500 of the anti-vibration ring end wall is arranged around the outer periphery of the inner wall 400 of the anti-vibration ring end wall, and a certain distance is provided between the outer wall 500 of the anti-vibration ring end wall and the inner wall 400 of the anti-vibration ring end wall. The side of the outer wall 500 of the anti-vibration ring end wall close to the outer ring 100 of the swirl channel is detachably connected to the side of the inner wall 400 of the anti-vibration ring end wall, and the outer wall 500 of the anti-vibration ring end wall and the inner wall 400 of the anti-vibration ring end wall are both at an acute angle to the central axis of the central body 200. The side of the outer wall 500 of the anti-vibration ring end wall away from the outer ring 100 of the swirl channel is connected to the flame tube 600.

[0031] The vibration-proof ring device with replaceable inner wall provided by the present invention makes the outer wall 500 of the vibration-proof ring end wall and the inner wall 400 of the vibration-proof ring end wall form an acute angle with the central axis of the central body 200 to reduce the formed angular vortex recirculation area; because the side of the outer wall 500 of the vibration-proof ring end wall close to the outer ring 100 of the swirl channel is detachably connected to the side of the inner wall 400 of the vibration-proof ring end wall, the outer wall 500 of the vibration-proof ring end wall and the inner wall 400 of the vibration-proof ring end wall with different parameters can be replaced, so as to optimize the relevant structural parameters of the outer wall 500 of the vibration-proof ring end wall and the inner wall 400 of the vibration-proof ring end wall, thereby optimizing the flow and flame characteristics in the combustion chamber, enhancing the flame stabilization capability in the combustion chamber, stabilizing the flame in the vibration-proof ring, and finally realizing the regulation of combustion oscillation.

[0032] In one embodiment of the present invention, Figure 3 One of the schematic diagrams of the side cross-sectional structure of the inner wall of the end wall of the vibration-proof ring and the outer wall of the end wall of the vibration-proof ring provided by the present invention is illustrated, as shown in FIG. Figure 3 As shown, the inner diameter of the inner wall 400 of the anti-vibration ring end wall and the inner diameter of the outer wall 500 of the anti-vibration ring end wall both gradually increase in the direction away from the outer ring 100 of the swirl channel. Figure 3 As shown, the inner diameter of the inner wall 400 of the anti-vibration ring end wall and the inner diameter of the outer wall 500 of the anti-vibration ring end wall both gradually increase from left to right. The thickness of the inner wall 400 of the anti-vibration ring end wall and the thickness of the outer wall 500 of the anti-vibration ring end wall can be the same or different; preferably, the thickness of the inner wall 400 of the anti-vibration ring end wall is less than the thickness of the outer wall 500 of the anti-vibration ring end wall.

[0033] In one embodiment of the present invention, the cross-section of the outer wall 500 of the vibration isolation ring end wall and the cross-section of the inner wall 400 of the vibration isolation ring end wall are both circular. Of course, the cross-section shape of the outer wall 500 of the vibration isolation ring end wall and the cross-section shape of the inner wall 400 of the vibration isolation ring end wall are not limited to this and can also be other shapes.

[0034] In one embodiment of the present invention, Figure 3 As shown, the central body 200 is coaxially arranged with the outer ring 100 of the swirl channel, and the included angle between the inner wall 400 of the anti-vibration ring end wall and the central axis of the central body 200 is α. The included angle between the outer wall 500 of the anti-vibration ring end wall and the central axis of the central body 200 is β, 0°≤α≤90°, 0°≤β≤90°, and -5°≤α-β≤+5°.

[0035] In one embodiment of the present invention, the central axis of the outer wall 500 of the vibration isolation ring end wall is in the same straight line as the central axis of the inner wall 400 of the vibration isolation ring end wall, that is, the outer wall 500 of the vibration isolation ring end wall is coaxially arranged with the inner wall 400 of the vibration isolation ring end wall.

[0036] In one embodiment of the present invention, Figure 3 As shown, an inner wall 400 of the vibration-proof ring end wall has an vibration-proof ring inlet 410 on one side. The vibration-proof ring inlet 410 is a circular opening. The vibration-proof ring inlet 410 is coaxially arranged with the airway inside the outer ring 100 of the swirl channel. The radius of the vibration-proof ring inlet 410 is r. The width of the outer wall 500 of the vibration-proof ring end wall in the length direction of the central axis of the swirler 300 is L1, and 0≤L1 / r≤2.

[0037] It should be noted that the width of the outer wall 500 of the end wall of the vibration-proof ring in the length direction of the central axis of the cyclone 300 specifically refers to the length of the projection of the outer wall 500 of the end wall of the vibration-proof ring on the central axis of the cyclone 300, that is, Figure 3 The length of the midline segment L1.

[0038] In one embodiment of the present invention, Figure 3 As shown, the width of the inner wall 400 of the anti-vibration ring end wall in the length direction of the central axis of the cyclone 300 is L2, and 0≤L2 / r≤2. The width of the outer wall 500 of the anti-vibration ring end wall in the length direction of the central axis of the cyclone 300 is greater than the width of the inner wall 400 of the anti-vibration ring end wall in the length direction of the central axis of the cyclone 300, that is, L1 is greater than L2, so 0≤L2 / L1≤1.

[0039] It should be noted that the width of the inner wall 400 of the end wall of the vibration-proof ring in the length direction of the central axis of the cyclone 300 specifically refers to the length of the projection of the inner wall 400 of the end wall of the vibration-proof ring on the central axis of the cyclone 300, that is, Figure 3 The length of the midline segment L2.

[0040] The vibration-proof ring device with replaceable inner wall provided by the present invention can control the combustion oscillation in the combustion chamber of the gas turbine by adjusting the local structure of the original combustion chamber (i.e., adjusting the structural parameters of the outer wall 500 of the vibration-proof ring end wall and the inner wall 400 of the vibration-proof ring end wall) without increasing the weight of the combustion chamber of the gas turbine, and can quickly optimize the structural scheme of the vibration-proof ring end wall by replacing the structure of the outer wall 500 of the vibration-proof ring end wall and the inner wall 400 of the vibration-proof ring end wall.

[0041] The replaceable inner wall anti-vibration ring device provided by the present invention is designed based on the principle of passive control. By adjusting the combustion chamber structure, an anti-vibration ring end wall structure in which the outer wall 500 of the anti-vibration ring end wall and the inner wall 400 of the anti-vibration ring end wall are adjustable and replaceable is realized, so as to weaken or eliminate the heat release pulsation in the combustion chamber and enhance the flame stabilization ability in the combustion chamber, thereby realizing the regulation of combustion oscillations.

[0042] In one embodiment of the present invention, Figure 5 One of the schematic diagrams of the side cross-sectional structure of the inner wall of the end wall of the vibration-proof ring and the outer wall of the end wall of the vibration-proof ring provided by the present invention is illustrated, as shown in FIG. Figure 5 As shown, at least one circle of impact hole groups is set on the side of the outer wall 500 of the end wall of the vibration-proof ring close to the outer ring 100 of the swirl channel, and the impact hole group includes a plurality of impact holes 510, which are circular through holes. The plurality of impact holes 510 are arranged at intervals along the circumferential direction, and the distance between two adjacent impact holes 510 is equal. Of course, the distance between two adjacent impact holes 510 may also be unequal, which is determined according to the actual effect. At least one circle of multi-inclined hole groups is set on the side of the outer wall 500 of the end wall of the vibration-proof ring away from the outer ring 100 of the swirl channel, and the multi-inclined hole group includes a plurality of multi-inclined holes 520, which are circular through holes. The plurality of multi-inclined holes 520 are arranged at intervals along the circumferential direction, and the distance between two adjacent multi-inclined holes 520 is equal. Of course, the distance between two adjacent multi-inclined holes 520 may also be unequal, which is determined according to the actual effect.

[0043] The impact hole 510 on the side of the outer wall 500 of the vibration-proof ring end wall close to the outer ring 100 of the swirl channel is used to cool the inner wall 400 of the vibration-proof ring end wall in the overlapping area with the inner wall 400 of the vibration-proof ring end wall. The multi-inclined holes 520 on the side of the outer wall 500 of the vibration-proof ring end wall away from the outer ring 100 of the swirl channel are used to cool the outer wall 500 of the vibration-proof ring end wall. According to different cooling objects, the cooling area can be divided into two areas, namely, a combined area formed by the overlapping part of the inner wall 400 of the vibration-proof ring end wall and the outer wall 500 of the vibration-proof ring end wall, and an independent outer wall area formed by the protruding part of the outer wall 500 of the vibration-proof ring end wall relative to the inner wall 400 of the vibration-proof ring end wall, wherein the combined area is cooled by the impact hole 510, and the independent outer wall area is cooled by the multi-inclined holes 520.

[0044] In one embodiment of the present invention, Figure 5 As shown, the central axis of the impact hole 510 is perpendicular to the outer surface of the inner wall 400 of the anti-vibration ring end wall, and the air entering through the impact hole 510 directly contacts the outer surface of the inner wall 400 of the anti-vibration ring end wall for heat exchange, thereby cooling the inner wall 400 of the anti-vibration ring end wall. The central axis of the multi-inclined hole 520 is parallel to the central axis of the central body 200, and when the air passes through the multi-inclined hole 520, the air will take away the heat of the outer wall 500 of the anti-vibration ring end wall.

[0045] In one embodiment of the present invention, at least one circle of impact holes 510 of the impact hole group and at least one circle of multi-inclined holes 520 of the multi-inclined hole group are alternately arranged along the circumferential direction. The region where the impact holes 510 and the multi-inclined holes 520 alternately correspond to the side of the inner wall 400 of the anti-vibration ring end wall away from the outer ring 100 of the swirl channel. By alternately arranging the impact holes 510 and the multi-inclined holes 520, both the inner wall 400 of the anti-vibration ring end wall in the region and the outer wall 500 of the anti-vibration ring end wall in the region can be cooled.

[0046] like Figure 1 As shown, in this embodiment, the outer wall 500 of the end wall of the vibration-proof ring is provided with three circles of impact hole groups and two circles of multi-inclined hole groups, wherein the impact holes 510 of one circle of the impact hole group and the multi-inclined holes 520 of one circle of the multi-inclined hole group are alternately arranged along the circumferential direction. Of course, the number of the impact hole groups and the multi-inclined hole groups is not limited thereto, and is specifically determined according to the width of the inner wall 400 of the end wall of the vibration-proof ring.

[0047] In one embodiment of the present invention, Figure 4 Example Figure 3 The local enlarged structural diagram at A in the middle is as follows: Figure 4 As shown, the side of the outer wall 500 of the anti-vibration ring end wall close to the outer ring 100 of the swirl channel is connected to the side of the inner wall 400 of the anti-vibration ring end wall by threads. Specifically, the inner wall of the outer wall 500 of the anti-vibration ring end wall close to the outer ring 100 of the swirl channel is provided with an internal thread, and the outer peripheral surface of the inner wall 400 of the anti-vibration ring end wall is provided with an external thread. The inner thread cooperates with the external thread to realize the detachable connection between the outer wall 500 of the anti-vibration ring end wall and the inner wall 400 of the anti-vibration ring end wall. Of course, the connection method of the outer wall 500 of the anti-vibration ring end wall and the inner wall 400 of the anti-vibration ring end wall is not limited to this, and screws, mortise and tenon or other detachable connection methods can also be used. Since the side of the outer wall 500 of the anti-vibration ring end wall close to the outer ring 100 of the swirl channel is detachably connected to the side of the inner wall 400 of the anti-vibration ring end wall, the combustion oscillation in the combustion chamber can be regulated without increasing the weight of the combustion chamber by replacing the outer wall 500 and the inner wall 400 of the anti-vibration ring end wall with different parameters.

[0048] The vibration-proof ring device with a replaceable inner wall provided by the present invention can adjust the parameters of the outer wall 500 of the vibration-proof ring end wall and the inner wall 400 of the vibration-proof ring end wall (such as the angle, width, and the setting method of the impact hole 510 and the multi-inclined holes 520) individually or in combination according to the actual needs of the combustion chamber, thereby realizing the change of the swirl flow parameters and flame-related parameters in the combustion chamber, thereby enhancing the flame stability and realizing the regulation of combustion oscillations.

[0049] The present invention also provides a combustion chamber component, which includes the anti-vibration ring device with a replaceable inner wall as described in any one of the above embodiments.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-vibration ring device with replaceable inner wall, characterized in that: include: Swirl channel outer ring (100); A central body (200) is arranged inside the outer ring (100) of the swirl channel; A cyclone (300) is arranged inside the outer ring (100) of the cyclone channel and connected to the central body (200); An inner wall (400) of an anti-vibration ring end wall, one side of the inner wall (400) of the anti-vibration ring end wall being sleeved on an outer peripheral surface of one end of the outer ring (100) of the swirl channel; an outer wall (500) of the end wall of the vibration-proof ring, the outer wall (500) of the end wall of the vibration-proof ring being arranged around the outer periphery of the inner wall (400) of the end wall of the vibration-proof ring, a side of the outer wall (500) of the end wall of the vibration-proof ring close to the outer ring (100) of the swirl channel being detachably connected to a side of the inner wall (400) of the end wall of the vibration-proof ring, and the outer wall (500) of the end wall of the vibration-proof ring and the inner wall (400) of the end wall of the vibration-proof ring both form an acute angle with the central axis of the central body (200); A flame tube (600), wherein a side of the outer wall (500) of the end wall of the vibration-proof ring away from the outer ring (100) of the swirl channel is connected to the flame tube (600).

2. The anti-vibration ring device with replaceable inner wall according to claim 1, characterized in that: The included angle between the inner wall (400) of the anti-vibration ring end wall and the central axis of the central body (200) is α, the included angle between the outer wall (500) of the anti-vibration ring end wall and the central axis of the central body (200) is β, 0°≤α≤90°, 0°≤β≤90°, and -5°≤α-β≤+5°.

3. The anti-vibration ring device with replaceable inner wall according to claim 2, characterized in that: The central axis of the outer wall (500) of the anti-vibration ring end wall and the central axis of the inner wall (400) of the anti-vibration ring end wall are in the same straight line.

4. The anti-vibration ring device with replaceable inner wall according to claim 2, characterized in that: An anti-vibration ring inlet (410) is provided inside one side of the inner wall (400) of the anti-vibration ring end wall, the radius of the anti-vibration ring inlet (410) is r, and the width of the outer wall (500) of the anti-vibration ring end wall in the length direction of the central axis of the cyclone (300) is L1, 0≤L1 / r≤2.

5. The anti-vibration ring device with replaceable inner wall according to claim 4, characterized in that: The width of the inner wall (400) of the anti-vibration ring end wall in the length direction of the central axis of the cyclone (300) is L2, 0≤L2 / r≤2, and 0≤L2 / L1≤1.

6. The anti-vibration ring device with replaceable inner wall according to any one of claims 1 to 5, characterized in that: At least one circle of impact hole groups is arranged on a side of the outer wall (500) of the anti-vibration ring end wall close to the outer ring (100) of the swirl channel, the impact hole group includes a plurality of impact holes (510), and the plurality of impact holes (510) are arranged at intervals along the circumferential direction; at least one circle of multi-inclined hole groups is arranged on a side of the outer wall (500) of the anti-vibration ring end wall away from the outer ring (100) of the swirl channel, the multi-inclined hole group includes a plurality of multi-inclined holes (520), and the plurality of multi-inclined holes (520) are arranged at intervals along the circumferential direction.

7. The anti-vibration ring device with replaceable inner wall according to claim 6, characterized in that: The central axis of the impact hole (510) is perpendicular to the outer surface of the inner wall (400) of the anti-vibration ring end wall, and the central axis of the multi-inclined hole (520) is parallel to the central axis of the central body (200).

8. The anti-vibration ring device with replaceable inner wall according to claim 6, characterized in that: At least one circle of impact holes (510) of the impact hole group and at least one circle of multi-inclined holes (520) of the multi-inclined hole group are alternately arranged along the circumferential direction.

9. The anti-vibration ring device with replaceable inner wall according to any one of claims 1 to 5, characterized in that: A side of the outer wall (500) of the anti-vibration ring end wall close to the outer ring (100) of the swirl channel is connected to a side of the inner wall (400) of the anti-vibration ring end wall by means of threads, screws or tongue and groove.

10. A combustion chamber component, characterized in that: An anti-vibration ring device with a replaceable inner wall comprising the device described in any one of claims 1 to 9.

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