Cooling system for an annular combustion chamber and method for machining thereof

Abstract

The application discloses a cooling system of an annular combustion chamber, comprising an outer ring base, an inner ring base and an annular panel; the inside of the annular combustion chamber is an annular combustion cavity; the outer ring base is fixed to the outer surface of the annular combustion chamber away from the center side, and a cooling channel one is formed between the inner side wall of the outer ring base and the corresponding outer side wall of the annular combustion chamber; the inner ring base is fixed to the center hole of the annular combustion chamber, and a cooling channel two is formed between the wall surface of the inner ring base away from the center side and the corresponding wall surface of the annular combustion chamber close to the center side; the annular panel is fixed to the outer surface of the annular combustion chamber in parallel, and the inside of the annular panel has a cooling channel three, and the cooling channel two, the cooling channel three and the cooling channel one are sequentially communicated. The cooling system of the annular combustion chamber and the processing method thereof can realize efficient, reliable heat protection and heat management performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerospace power propulsion technology, and more particularly, to a cooling system of an annular combustion chamber and a processing method thereof. BACKGROUND

[0002] In the evolution of aerospace power systems, the traditional annular combustion chamber as the core component of the aero-engine, its design has long been focused on dealing with the case of large flow air. The body of the traditional combustion chamber is provided with a plurality of main combustion holes and mixing holes, the design purpose of these holes is to introduce the flow air, through a large amount of flow air as the oxidant, to realize the stable combustion of fuel, the flow air can not only improve the combustion efficiency, but also can form a cooling effect on the combustion chamber.

[0003] With the continuous development of new advanced power technology, such as rotating detonation engine (RDE) and air turbine rocket engine (ATR), etc., the combustion process in the combustion chamber (gas generator) of these new engines is to chemically react the unmixed fuel and oxidant in the combustion chamber, thereby producing high-temperature and high-pressure combustion gas. This new type of combustion chamber does not involve flow air, and the traditional design method of arranging main combustion holes and mixing holes in the body is no longer applicable. This change not only affects the combustion efficiency of the combustion chamber, but more importantly, it seriously restricts the performance of the traditional combustion chamber in terms of thermal protection and thermal management. Without the natural convection cooling effect of the flow air, the high-temperature combustion gas inside the combustion chamber will directly cause thermal load on the combustion chamber wall, and then may cause structural thermal damage, and even affect the overall performance and safety of the engine. Therefore, researchers have begun to explore the technology of improving the combustion performance of the combustion chamber and new thermal protection and thermal management technology.

[0004] However, in the annular combustion chamber, especially when designing cooling channels in the inner ring area, there are many technical difficulties. Different topological structure forms not only increase the design complexity, but also greatly increase the processing difficulty, which to some extent limits the wide application of this technology.

[0005] Therefore, how to provide a cooling system of an annular combustion chamber and a processing method thereof which can realize efficient and reliable thermal protection and thermal management performance is a problem that those skilled in the art need to solve. SUMMARY

[0006] Therefore, the present application provides a cooling system of an annular combustion chamber and a processing method thereof, which can realize efficient and reliable thermal protection and thermal management performance.

[0007] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0008] A cooling system of an annular combustion chamber comprises an outer ring base, an inner ring base and an annular panel.

[0009] The annular combustion chamber has an annular combustion cavity; the outer ring base is fixed to the outer surface of the annular combustion chamber away from the center side and a cooling channel one is formed between the inner side wall of the outer ring base and the corresponding outer side wall of the annular combustion chamber; the inner ring base is fixed to the center hole of the annular combustion chamber and a cooling channel two is formed between the wall surface of the inner ring base away from the center side and the corresponding wall surface of the annular combustion chamber close to the center side; the annular panel is fixed to the outer surface of the annular combustion chamber in parallel and has a cooling channel three inside; the cooling channel two, the cooling channel three and the cooling channel one are sequentially communicated.

[0010] Through the above technical scheme, the cooling system of the annular combustion chamber is provided, the cooling channel two, the cooling channel three and the cooling channel one are sequentially communicated to form a high-efficiency and reliable cooling system, the cooling medium circulates between the inner wall and the outer wall of the combustion chamber, the uniform cooling of the wall surface of the annular combustion chamber is realized, the local overheating phenomenon is avoided, the high-temperature heat generated by combustion can be effectively taken away, the direct thermal load on the wall surface of the combustion chamber is reduced, the high-efficiency heat protection performance significantly improves the structural thermal stability and service life of the combustion chamber, and the machining complexity and manufacturing cost are reduced through the arrangement of the outer ring base, the inner ring base and the annular panel.

[0011] Further, a groove one is formed in the side surface of the annular combustion chamber corresponding to the outer ring base, and the groove one forms the cooling channel one with the inner wall of the outer ring base.

[0012] The groove one can be arranged vertically to the annular surface direction of the annular combustion chamber or in a spiral line structure extending along the annular surface direction of the annular combustion chamber.

[0013] A groove two is formed in the side surface of the annular combustion chamber corresponding to the inner ring base, and the groove two forms the cooling channel two with the outer wall of the annular combustion chamber.

[0014] The groove two can be arranged vertically to the annular surface direction of the annular combustion chamber or in a spiral line structure extending along the annular surface direction of the annular combustion chamber.

[0015] The cooling channel one and the cooling channel two are provided with multiple and respectively correspondingly uniformly arranged; the outer ring base body is provided with a liquid collecting cavity one on the wall surface away from the annular panel, the inlet of the liquid collecting cavity one is communicated with the external cooling medium, and the outlet of the liquid collecting cavity one is communicated with the inlets of the multiple cooling channel ones; the outer ring base body is provided with a liquid collecting cavity two on the wall surface close to the annular panel, the inlet of the liquid collecting cavity two is communicated with the outlets of the multiple cooling channel ones, and the outlet of the liquid collecting cavity two is communicated with the inlet of the cooling channel three; the inner ring base body is provided with a liquid collecting cavity three on the wall surface close to the annular panel, the inlet of the liquid collecting cavity three is communicated with the outlet of the cooling channel three, and the outlet of the liquid collecting cavity three is communicated with the inlets of the multiple cooling channel twos; the inner ring base body is provided with a liquid collecting cavity four on the wall surface away from the annular panel, the inlet of the liquid collecting cavity four is communicated with the outlets of the multiple cooling channel twos, and the outlet of the liquid collecting cavity four is a cooling medium outlet.

[0016] Further, the panel fluid collector is located on the center side of the annular panel and is fixed to the inner ring base body, and the panel fluid collector is provided with a groove on the side corresponding to the inner ring base body, and the groove is communicated with the liquid collecting cavity three formed by the outer wall of the inner ring base body.

[0017] The cooling medium first enters the liquid collecting cavity one, under the action of the flow equalizing hole, the cooling medium flows into the multiple cooling channel ones uniformly and flows along the direction of the cooling channel one to gather in the liquid collecting cavity two, then the cooling medium enters the cooling channel three and flows along the direction of the cooling channel three to gather in the liquid collecting cavity three, under the action of the flow equalizing hole, the cooling medium enters the cooling channel two and flows along the direction of the cooling channel two to gather in the liquid collecting cavity four, and finally the cooling medium is discharged from the cooling medium outlet of the liquid collecting cavity four, so that the cooling medium can effectively cool the annular combustion chamber.

[0018] The multiple liquid collecting cavities can ensure that the flow of the cooling medium entering the multiple corresponding cooling channels is consistent, so that the cooling medium can uniformly and stably effectively cool the combustion chamber.

[0019] Preferably, the annular combustion chamber is provided with a curved surface one structure which is inwardly curved and corresponds to the wall surface close to the center side thereof. The structure can help to control the shape and length of the tail flame to meet the specific flight requirements.

[0020] Further, the cooling channel two is provided with a curved surface two which is adapted to the curved surface one.

[0021] Further, the heat exchange rib is arranged along the axial direction of the cooling channel two and is fixed to the middle position of the curved surface two, so as to divide the cooling channel two into two small flow channels.

[0022] The structure can enhance the heat protection performance of the curved surface two, on the one hand, the flow rate of the cooling medium can be accelerated, and on the other hand, the heat exchange area can be increased, so that the heat exchange performance of the curved surface two is improved; and the heat protection performance of the curved surface two can be improved due to the sharp change of the curved surface two.

[0023] The application further discloses a machining method of the cooling system of the annular combustion chamber.

[0024] S1, the outer ring base is connected to the outer surface of the annular combustion chamber by diffusion welding, and a cooling channel one is formed between the outer ring base and the annular combustion chamber;

[0025] S2, the inner ring base is connected to the central ring hole of the annular combustion chamber by diffusion welding, and a cooling channel two is formed between the inner ring base and the annular combustion chamber;

[0026] S3, a cooling channel three is formed in the annular panel, the annular panel is connected to the outer ring base and the inner ring base by argon arc welding, and the inlet and the outlet of the cooling channel three are respectively connected to the outlet of the cooling channel one and the inlet of the cooling channel two.

[0027] Further, a groove one is formed by milling a groove on the side of the annular combustion chamber corresponding to the outer ring base, and the groove mouth of the groove one and the side of the outer ring base corresponding to the outer ring base form the cooling channel one; a groove two is formed by milling a groove on the side of the inner ring base corresponding to the annular combustion chamber, and the groove mouth of the groove two and the outer wall of the annular combustion chamber form the cooling channel two. Through the arrangement of the structure, the machining simplicity and precision control of the cooling channel one and the cooling channel two can be improved. The cavity wall (the wall surface of the annular combustion chamber), the inner ring base and the outer ring base of the annular combustion chamber are all thin-walled copper material rings, and the inner surface machining is not easy to control. Especially when the thin-walled structure is involved, the machining of the inner surface is extremely high in rigidity and machining precision requirements of the machine tool. The application can guarantee the machining simplicity and machining precision by milling grooves on the outer ring wall of the inner ring base and the outer ring wall of the annular combustion chamber, provides greater flexibility, reduces the machining deformation, helps to improve the production efficiency and reduce the maintenance cost.

[0028] Further, a structure one is connected to the end of the outer ring base away from the annular panel by argon arc welding, and a liquid collecting cavity one is formed between the wall surface of the outer ring base and the structure one;

[0029] A structure two is connected to the end of the outer ring base close to the annular panel by argon arc welding, and a liquid collecting cavity two is formed between the structure two, the outer ring base and the annular panel; a plurality of flow holes are formed on the cavity wall of the liquid collecting cavity two and correspond to the inlets of the plurality of cooling channels one;

[0030] A groove is formed on the side of the panel fluid collector corresponding to the inner ring base, the panel fluid collector is connected to the inner ring base by argon arc welding, the groove mouth of the groove and the outer wall of the inner ring base form a liquid collecting cavity three, a plurality of flow holes are formed on the cavity wall of the liquid collecting cavity three and correspond to the outlets of the cooling channels three and the inlets of the plurality of cooling channels two;

[0031] The inner ring base is integrally formed with a liquid collecting cavity four at one end away from the annular panel, a plurality of flow uniformizing holes are formed in the cavity wall of the liquid collecting cavity four, and the liquid collecting cavity four is provided with a cooling medium outlet.

[0032] Further, the panel fluid collector is connected with the annular panel by welding to ensure the structural stability.

[0033] Further, the chamber wall of the annular combustion chamber is made of copper alloy material with high thermal conductivity to realize efficient heat exchange between the gas and the cooling medium and protect the annular combustion chamber from high temperature corrosion; the inner ring base, the outer ring base and the annular panel are made of high-temperature alloy material to provide sufficient structural strength for the annular combustion chamber.

[0034] The inner ring base and the outer ring base are both produced by additive manufacturing, and the precision and roughness are controlled by machining.

[0035] Through the above technical scheme, the processing method of the cooling system is provided, which realizes the processing design of the cooling system of the annular combustion chamber by additive manufacturing and diffusion welding connection forming technology, combines copper alloy and high-temperature alloy material, shortens the processing cycle, realizes reliable processing of complex structure, reduces the processing difficulty of the inner ring as a whole, and controls the structural deformation amount.

[0036] Through the above technical scheme, compared with the prior art, the cooling system of the annular combustion chamber is provided, compared with the prior art, the cooling system is formed by the sequentially connected cooling channel two, cooling channel three and cooling channel one, which realizes the circulation of the cooling medium between the inner ring wall and the outer ring wall of the combustion chamber, realizes the uniform cooling of the whole annular combustion chamber wall, avoids the local overheating phenomenon, and can effectively take away the high temperature heat generated by combustion, reduces the direct thermal load on the combustion chamber wall; the efficient heat protection performance significantly improves the structural thermal stability and service life of the combustion chamber; the machining complexity and manufacturing cost are reduced by the setting of the outer ring base, the inner ring base and the annular panel; the processing method of the cooling system is also disclosed, which realizes the processing design of the cooling system of the annular combustion chamber by additive manufacturing and diffusion welding connection forming technology, combines copper alloy and high-temperature alloy material, shortens the processing cycle, realizes reliable processing of complex structure, reduces the processing difficulty of the inner ring as a whole, and controls the structural deformation amount. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only aim at the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without any creative effort based on the provided drawings.

[0038] Figure 1 It is a front view of a cooling system of a ring-shaped combustion chamber according to the present application.

[0039] Figure 2 It is a front view of a cooling system of a ring-shaped combustion chamber according to the present application. Figure 1 It is a sectional view along the direction of M-M.

[0040] Figure 3 It is a sectional view along the direction of N-N. Figure 1

[0041] It is an enlarged view of the cooling passage two provided by the present application. Figure 4

[0042] It is a structural view of the groove one provided by the present application. Figure 5 In the drawings: 1 is a ring-shaped combustion chamber; 11 is a ring-shaped combustion cavity; 12 is a cooling passage one; 13 is a groove one;

[0043] 2 is an outer ring base body; 21 is a liquid collecting cavity two; 22 is a liquid collecting cavity one;

[0044] 3 is an inner ring base body; 31 is a cooling passage two; 32 is a curved surface two; 33 is a liquid collecting cavity four;

[0045] 4 is a ring-shaped panel; 41 is a cooling passage three; 5 is a heat exchange rib; 6 is a panel fluid collector; 61 is a liquid collecting cavity three.

[0046] DETAILED DESCRIPTION The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present application.

[0047] Embodiment 1

[0048] Referring to the drawings,

[0049] Embodiment 1 of the present application discloses a cooling system of a ring-shaped combustion chamber, comprising: an outer ring base body 2, an inner ring base body 3 and a ring-shaped panel 4. Figures 1-4

[0050] ​The annular combustion chamber 1 is internally provided with an annular combustion cavity 11; the outer ring base 2 is fixed to the outer surface of the annular combustion chamber 1 away from the center side, and a cooling channel one 12 is formed between the inner side wall of the outer ring base 2 and the corresponding outer side wall of the annular combustion chamber 1; the inner ring base 3 is fixed to the center hole of the annular combustion chamber 1, and a cooling channel two 31 is formed between the wall surface of the inner ring base 3 away from the center side and the corresponding wall surface of the annular combustion chamber 1 close to the center side; the annular panel 4 is fixed in parallel to the outer surface of the annular combustion chamber 1 in the ring surface direction, and the inner part of the annular panel 4 is provided with a cooling channel three 41, and the cooling channel two 31, the cooling channel three 41 and the cooling channel one 12 are sequentially communicated.

[0051] The annular combustion chamber 1 is provided with a groove one 13 on the side surface corresponding to the outer ring base 2, and the groove one 13 is provided with a groove opening, and the groove opening and the inner wall of the outer ring base 2 form the cooling channel one 12.

[0052] The groove one 13 can be arranged vertically to the ring surface direction of the annular combustion chamber 1, or can be arranged in a spiral line structure extending along the ring surface direction of the annular combustion chamber 1. Figure 5 The groove one 13 can be arranged vertically to the ring surface direction of the annular combustion chamber 1, or can be arranged in a spiral line structure extending along the ring surface direction of the annular combustion chamber 1.

[0053] The inner ring base 3 is provided with a groove two on the side surface corresponding to the annular combustion chamber 1, and the groove two is provided with a groove opening, and the groove opening and the outer wall of the annular combustion chamber 1 form the cooling channel two 31.

[0054] The groove two can be arranged vertically to the ring surface direction of the annular combustion chamber 1, or can be arranged in a spiral line structure extending along the ring surface direction of the annular combustion chamber 1.

[0055] In some specific embodiments, the cooling channel one 12 and the cooling channel two 31 are each provided with a plurality of cooling channels and are uniformly arranged along the circumferential direction of the annular combustion chamber 1; the wall surface of the outer ring base 2 away from the annular panel 4 is provided with a liquid collecting cavity one 22, the inlet of the liquid collecting cavity one 22 is communicated with the external cooling medium, and the outlet of the liquid collecting cavity one 22 is communicated with the inlet of the plurality of cooling channels one 12; the wall surface of the outer ring base 2 close to the annular panel 4 is provided with a liquid collecting cavity two 21, the inlet of the liquid collecting cavity two 21 is communicated with the outlet of the plurality of cooling channels one 12, and the outlet of the liquid collecting cavity two 21 is communicated with the inlet of the cooling channel three 41; the wall surface of the inner ring base 3 close to the annular panel 4 is provided with a liquid collecting cavity three 61, the inlet of the liquid collecting cavity three 61 is communicated with the outlet of the cooling channel three 41, and the outlet of the liquid collecting cavity three 61 is communicated with the inlet of the plurality of cooling channels two 31; the wall surface of the inner ring base 3 away from the annular panel 4 is provided with a liquid collecting cavity four 33, the inlet of the liquid collecting cavity four 33 is communicated with the outlet of the plurality of cooling channels two 31, and the outlet of the liquid collecting cavity four 33 is the cooling medium outlet.

[0056] The liquid collecting cavity one 22, the liquid collecting cavity two 21 and the liquid collecting cavity four 33 are each arranged in a ring structure.

[0057] The panel fluid collector 6 is located at the center side of the annular panel 4 and is fixed to the inner ring base 3. The panel fluid collector 6 is provided with a groove on the side corresponding to the inner ring base 3, and the groove opening forms a liquid collecting cavity three 61 with the outer wall of the inner ring base 3.

[0058] In some specific embodiments, the wall surface of the annular combustion chamber 1 corresponding to the side close to the center is provided with a curved surface one structure.

[0059] The heat exchange rib 5 is provided along the axial direction of the cooling channel two 31 and is fixed to the middle position of the curved surface two 32 to divide the cooling channel two 31 into two small flow channels.

[0060] Embodiment 2

[0061] The embodiment 2 of the present application discloses a processing method of the cooling system in the embodiment 1, which comprises the following steps:

[0062] S1, the outer ring base 2 is connected to the annular combustion chamber 1 corresponding to the outer surface far away from the center by diffusion welding, and the cooling channel one 12 is formed between the two.

[0063] S2, the inner ring base 3 is connected to the center hole of the annular combustion chamber 1 by diffusion welding, and the cooling channel two 31 is formed between the two.

[0064] S3, the cooling channel three 41 is opened in the annular panel 4, the annular panel 4 is connected with the outer ring base 2 and the inner ring base 3 by argon arc welding, and the inlet and outlet of the cooling channel three 41 are communicated with the outlet of the cooling channel one 12 and the inlet of the cooling channel two 31 respectively.

[0065] The wall of the annular combustion chamber 1 is made of copper alloy material with high thermal conductivity. The inner ring base 3, the outer ring base 2 and the annular panel 4 are all made of high-temperature alloy material by additive manufacturing.

[0066] Specifically, the groove one 13 is formed by milling the side of the annular combustion chamber 1 corresponding to the outer ring base 2, and the groove opening of the groove one 13 forms the cooling channel one 12 with the side of the outer ring base 2. The groove two is formed by milling the side of the inner ring base 3 corresponding to the annular combustion chamber 1, and the groove opening of the groove two forms the cooling channel two 31 with the outer wall of the annular combustion chamber 1.

[0067] The structure one is connected by argon arc welding at the end of the outer ring base 2 far away from the annular panel 4, and the liquid collecting cavity one 22 is formed between the wall surface of the outer ring base 2 and the structure one. A plurality of flow holes are opened on the cavity wall of the liquid collecting cavity one 22 and communicated with the inlets of the plurality of cooling channels one 12.

[0068] The outer ring base 2 is connected with the second structure member by argon arc welding at one end close to the annular panel 4, and a liquid collecting cavity 21 is formed between the second structure member, the outer ring base 2 and the annular panel 4; a plurality of groups of flow equalizing holes are formed on the cavity wall of the liquid collecting cavity 21 and correspond to the outlets of the plurality of cooling channels 12;

[0069] The panel fluid collector 6 is connected with the inner ring base 3 by argon arc welding at one side of the inner ring base 3, and a groove is formed on the side of the panel fluid collector 6, and the groove opening of the panel fluid collector 6 and the outer wall of the inner ring base 3 form a liquid collecting cavity 61, a plurality of groups of flow equalizing holes are formed on the cavity wall of the liquid collecting cavity 61 and correspond to the outlets of the cooling channels 41 and the inlets of the plurality of cooling channels 31;

[0070] The inner ring base 3 is integrally formed with a liquid collecting cavity 33 at one end away from the annular panel 4, a plurality of groups of flow equalizing holes are formed on the cavity wall of the liquid collecting cavity 33 and correspond to the outlets of the plurality of cooling channels 31, and the liquid collecting cavity 33 is provided with a cooling medium outlet.

[0071] The cooling system of the annular combustion chamber designed according to the embodiment 1 of the present application forms a high-efficiency and reliable cooling system through the sequentially connected cooling channels 2, 3 and 1, and the structure makes the cooling medium circulate between the inner wall and the outer wall of the combustion chamber, realizes uniform cooling of the wall surface of the annular combustion chamber, avoids local overheating, and effectively removes the high-temperature heat generated by combustion, reduces the direct thermal load on the wall surface of the combustion chamber; the high-efficiency heat protection significantly improves the structural thermal stability and service life of the combustion chamber; the setting of the outer ring base, the inner ring base and the annular panel reduces the processing complexity and manufacturing cost. The processing method of the cooling system designed according to the embodiment 2 of the present application realizes the processing design of the cooling system of the annular combustion chamber through additive manufacturing and diffusion welding connection forming technology, combines copper alloy and high-temperature alloy materials, shortens the processing cycle, realizes reliable processing of complex structures, reduces the processing difficulty of the inner ring as a whole, and controls the structural deformation amount.

[0072] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0073] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cooling system for an annular combustor, comprising: The application relates to a ring-shaped combustion chamber (1) comprising an outer ring base (2), an inner ring base (3) and a ring-shaped panel (4). The ring-shaped combustion chamber (1) is internally provided with a ring-shaped combustion cavity (11); the outer ring base (2) is fixed to the outer surface of the ring-shaped combustion chamber (1) far away from the center of the ring-shaped combustion chamber (1), and a cooling channel one (12) is formed between the inner side wall of the outer ring base (2) and the corresponding outer side wall of the ring-shaped combustion chamber (1); the inner ring base (3) is fixed to the center ring hole of the ring-shaped combustion chamber (1), and a cooling channel two (31) is formed between the wall surface of the inner ring base (3) far away from the center and the corresponding wall surface of the ring-shaped combustion chamber (1) close to the center; the ring-shaped panel (4) is fixed to the outer surface of the ring-shaped combustion chamber (1) in parallel, and the ring-shaped panel (4) is internally provided with a cooling channel three (41); the cooling channel two (31), the cooling channel three (41) and the cooling channel one (12) are sequentially communicated. The wall surface of the ring-shaped combustion chamber (1) close to the center is provided with a curved surface one structure which is inwardly curved. The application further comprises heat exchange ribs (5), the cooling channel two (31) is provided with a curved surface two (32) which is matched with the curved surface one, and the heat exchange ribs (5) are arranged along the axial direction of the cooling channel two (31) and are fixed to the middle position of the curved surface two (32). The ring-shaped combustion chamber (1) is provided with a groove one (13) on one side surface of the outer ring base (2), and the groove opening of the groove one (13) and the inner wall of the outer ring base (2) form the cooling channel one (12).

2. A cooling system for an annular combustor as recited in claim 1, wherein The inner ring base (3) is provided with a groove two on one side surface of the ring-shaped combustion chamber (1), and the groove opening of the groove two and the outer wall of the ring-shaped combustion chamber (1) form the cooling channel two (31).

3. A cooling system for an annular combustor as recited in claim 2, wherein, The cooling channel one (12) and the cooling channel two (31) are both provided with a plurality of cooling channels; the wall surface of the outer ring base (2) far away from the ring-shaped panel (4) is provided with a liquid collecting cavity one (22), the inlet of the liquid collecting cavity one (22) is communicated with external cooling medium, the outlet of the liquid collecting cavity one (22) is communicated with the inlets of a plurality of the cooling channel one (12); the wall surface of the outer ring base (2) close to the ring-shaped panel (4) is provided with a liquid collecting cavity two (21), the inlet of the liquid collecting cavity two (21) is communicated with the outlets of a plurality of the cooling channel one (12), and the outlet of the liquid collecting cavity two (21) is communicated with the inlet of the cooling channel three (41); the wall surface of the inner ring base (3) close to the ring-shaped panel (4) is provided with a liquid collecting cavity three (61), the inlet of the liquid collecting cavity three (61) is communicated with the outlet of the cooling channel three (41), and the outlet of the liquid collecting cavity three (61) is communicated with the inlets of a plurality of the cooling channel two (31); the wall surface of the inner ring base (3) far away from the ring-shaped panel (4) is provided with a liquid collecting cavity four (33), the inlet of the liquid collecting cavity four (33) is communicated with the outlets of a plurality of the cooling channel two (31), and the outlet of the liquid collecting cavity four (33) is a cooling medium outlet.

4. A cooling system for an annular combustor as recited in claim 3, wherein, ​ 5. A cooling system for an annular combustor as recited in claim 4, wherein, Also included is a panel fluid collector (6) located at the center side of the annular panel (4) and fixed with the inner ring base (3), which is provided with a groove on the side corresponding to the inner ring base (3), and the groove opening forms the liquid collecting cavity three (61) with the corresponding outer wall of the inner ring base (3).

6. A method of manufacturing a cooling system of an annular combustor according to any one of claims 1-5, characterized in that, The method comprises the following steps: S1, the outer ring base (2) is connected to the outer surface of the annular combustion chamber (1) corresponding to the center side by diffusion welding, and the cooling channel one (12) is formed between them; S2, the inner ring base (3) is connected to the center hole of the annular combustion chamber (1) by diffusion welding, and the cooling channel two (31) is formed between them; S3, the annular panel (4) is internally provided with a cooling channel three (41), the annular panel (4) is connected with the outer ring base (2) and the inner ring base (3) by argon arc welding respectively, and the inlet and outlet of the cooling channel three (41) are respectively communicated with the outlet of the cooling channel one (12) and the inlet of the cooling channel two (31).

7. A cooling system for an annular combustor as recited in claim 6, wherein The chamber wall of the annular combustion chamber (1) is made of high-thermal-conductivity copper alloy material.

8. A cooling system for an annular combustor as recited in claim 6, wherein, The inner ring base (3), the outer ring base (2) and the annular panel (4) are all made of high-temperature alloy material.

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