A processing casing structure and a compressor having the same

Abstract

On one hand, the present application provides a processing casing structure, including: a processing casing; a processing ring, which is arranged in the processing casing, and forms an annular processing chamber with the processing casing, and has a plurality of processing grooves distributed along the circumferential direction; each processing groove is connected to the annular processing chamber; and an elastic ring is filled in the annular processing chamber. On the other hand, the present application provides a compressor, including: the above-mentioned processing casing structure, wherein each processing groove surrounds the outer periphery of a first-stage rotor blade.

Description

Technical Field

[0001] The present application belongs to the technical field of compressor processing casing structure design, and specifically relates to a processing casing structure and a compressor having the same. Background Art

[0002] With the continuous pursuit of low fuel consumption and high thrust-to-weight ratio for aircraft engines, the requirements for the stage load and working margin of the compressor are also constantly increasing. However, higher stage loads will inevitably lead to a reduction in the working margin of the compression components. In order to resolve the contradiction between the high stage load and high working margin of the compression components, the casing structure design technology came into being.

[0003] The processing casing structure includes a processing casing and a processing ring arranged in the processing casing. The processing ring has multiple processing grooves distributed along the circumferential direction. The processing casing and its processing ring are sleeved on the outer periphery of a rotor blade of a certain stage of the compressor. When the compressor is working, the airflow at the tip of the rotor blade of this stage flows into the processing groove, thereby changing the airflow state at the tip of the rotor blade of this stage, delaying the occurrence of stall at the tip of the rotor blade of this stage, and improving the working margin of the compressor. This technical solution only opens the processing groove on the processing ring, which has little effect on the working efficiency of the compressor, but has limited ability to improve the working margin of the compressor, and is difficult to adapt to large working conditions of the compressor.

[0004] At present, in order to further improve the working margin of the compressor, an annular processing chamber is designed to be formed between the processing casing and the processing ring. The annular processing chamber is connected to each processing groove. When the compressor is working, the airflow at the tip of the rotor blade of the corresponding stage flows into the annular processing chamber through each processing groove. This technical solution can greatly improve the working margin of the compressor, but it has a great impact on the working efficiency of the compressor, especially under small working conditions, which seriously reduces the working efficiency of the compressor.

[0005] This application is proposed in view of the above-mentioned technical defects.

[0006] It should be noted that the disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0007] The purpose of the present application is to provide a processing casing structure and a compressor having the same, so as to overcome or alleviate at least one aspect of the technical defects of the known ones.

[0008] The technical solution of this application is:

[0009] On the one hand, a processing casing structure is provided, comprising:

[0010] Processing the casing;

[0011] A processing ring is arranged in the processing casing, and forms an annular processing chamber with the processing casing, and has a plurality of processing grooves distributed along the circumference; each processing groove is connected to the annular processing chamber;

[0012] An elastic ring is filled in the annular processing chamber.

[0013] According to at least one embodiment of the present application, in the above-mentioned processing casing structure, an annular groove is provided on the inner side of the processing casing;

[0014] The processing ring is arranged in the annular groove, and an annular processing chamber is formed between the processing ring and the annular groove.

[0015] According to at least one embodiment of the present application, in the above-mentioned processing casing structure, an annular groove is provided on both side walls of the annular groove;

[0016] The edge of each end of the processing ring is correspondingly clamped in an annular clamping groove.

[0017] According to at least one embodiment of the present application, in the above-mentioned processing cartridge structure, the edge of each end of the processing ring is positioned with the corresponding annular groove through a stopper.

[0018] According to at least one embodiment of the present application, in the above-mentioned processing casing structure, each processing groove is a straight groove, an oblique groove or a V-shaped groove.

[0019] According to at least one embodiment of the present application, in the above-mentioned processing cartridge structure, the elastic ring is made of polyimide foam or polyurethane foam material.

[0020] Another aspect provides a compressor, comprising:

[0021] Any of the above-mentioned processing casing structures, wherein each processing groove surrounds the outer circumference of the first-stage rotor blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a processing casing provided by an embodiment of the present application when the engine is in a low-operating state;

[0023] Figure 2 It is a schematic diagram of a processing casing provided by an embodiment of the present application when the engine is in a large operating state;

[0024] Figure 3 is a partial top view schematic diagram of a processing ring provided in an embodiment of the present application;

[0025] in:

[0026] 1-processing casing; 2-processing ring; 3-elastic ring; 4-rotor blade.

[0027] In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. In addition, the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. DETAILED DESCRIPTION

[0028] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be further described in detail in detail and in detail in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0029] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application shall be the common meanings understood by the general technicians in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate the relative direction or positional relationship, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, so it cannot be understood as a limitation on this application. The "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance. The similar words "one", "one" or "the" used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the existence of at least one. The similar words "including" or "comprising" used in the description of this application mean that the elements or objects appearing in front of the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0030] In addition, it should be noted that, unless otherwise clearly specified and limited, the words "installed", "connected", "connected" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection 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, an indirect connection through an intermediate medium, or the internal connection of two components. Technical personnel in the field can understand their specific meanings in this application according to the specific circumstances.

[0031] The following is combined with Figures 1 to 3This application is described in further detail.

[0032] On the one hand, a processing casing structure is provided, comprising:

[0033] Processing Casing 1;

[0034] The processing ring 2 is arranged in the processing casing 1, and forms an annular processing chamber with the processing casing 1, and has a plurality of processing grooves distributed along the circumferential direction; each processing groove is connected with the annular processing chamber;

[0035] The elastic ring 3 is filled in the annular processing chamber.

[0036] For the treatment casing structure disclosed in the above embodiment, it can be understood by those skilled in the art that, in the compressor, each treatment tank can surround the outer periphery of the first-stage rotor blade 4. When the compressor is working under low operating conditions, the pulsating pressure of the airflow at the tip of the rotor blade 4 of this stage is small, and the airflow at the tip of the rotor blade 4 of this stage flows into each treatment tank, which is not enough to cause a large deformation of the elastic ring 3. The effective volume of the annular treatment chamber is limited, which can ensure the working efficiency of the compressor. Figure 1 As shown in FIG. 1 , when the compressor is working under large working conditions, the pulsating pressure of the airflow at the tip of the corresponding stage rotor blade 4 is relatively large. The airflow at the tip of the corresponding stage rotor blade 4 flows into each processing groove, which can cause a large deformation of the elastic ring 3 and increase the effective working volume of the annular processing chamber, thereby effectively improving the working margin of the compressor. Figure 2 shown.

[0037] Regarding the processing casing structure disclosed in the above-mentioned embodiment, technicians in the field can also understand that an elastic ring 3 is arranged in the annular processing chamber formed between the processing casing 1 and the processing ring 2, and the deformation of the elastic ring 3 can increase with the increase of the compressor operating condition. Even if the effective working volume of the annular processing chamber increases with the increase of the compressor operating condition, it has a certain adaptive ability, thereby ensuring the improvement of the compressor working margin and the working efficiency of the compressor.

[0038] For the processing casing structure disclosed in the above-mentioned embodiment, technicians in the field can also understand that the elastic coefficient and its damping coefficient related to the deformation of the elastic ring 3 can be designed by relevant technicians when applying the present application based on specific actual conditions, with the limit of being able to effectively improve the working margin of the compressor and ensure the working efficiency of the compressor, and no more detailed explanation is given here.

[0039] In some optional embodiments, in the above-mentioned processing casing structure, the inner side of the processing casing 1 has an annular groove;

[0040] The processing ring 2 is arranged in the annular groove, and an annular processing chamber is formed between the processing ring and the annular groove.

[0041] In some optional embodiments, in the above-mentioned processing casing structure, annular grooves are provided on the side walls on both sides of the annular groove;

[0042] The edge of each end of the processing ring 2 is correspondingly clamped in an annular clamping groove, and is reliably connected to the processing casing 1 .

[0043] In some optional embodiments, in the above-mentioned processing cartridge structure, the edge of each end of the processing ring 2 is positioned with the corresponding annular groove through a stopper.

[0044] In some optional embodiments, in the above-mentioned processing cartridge structure, each processing groove is a straight groove, an oblique groove or a V-shaped groove. The specific type and number can be designed by relevant technical personnel according to specific practices when applying the present application, and no further limitation is made here.

[0045] In some optional embodiments, in the above-mentioned processing casing structure, the elastic ring 3 is made of closed-cell polyimide foam or polyurethane foam material, and can be connected to the wall of the annular groove in the form of bonding. The specific manufacturing material can be determined by relevant technical personnel when applying the present application according to specific practices, and its elastic coefficient and damping coefficient can be controlled by designing material density, fillers, additives, and foaming process.

[0046] Another aspect provides a compressor, comprising:

[0047] Any of the above-mentioned processing casing structures, wherein each processing groove surrounds the outer circumference of the first-stage rotor blade 4.

[0048] The compressor disclosed in the above embodiment includes the processing casing structure disclosed in the above embodiment, which is described relatively simply. For specific related matters, please refer to the description of the relevant parts of the processing casing structure. Its technical effects can also be understood by referring to the technical effects of the relevant parts of the processing casing structure, and will not be repeated here.

[0049] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0050] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the scope of protection of the present application.

Claims

1. A processing casing structure, characterized in that: include: Processing housing (1); A processing ring (2) is arranged in the processing casing (1) to form an annular processing chamber with the processing casing (1), and has a plurality of processing grooves distributed along the circumference; each of the processing grooves is connected to the annular processing chamber; An elastic ring (3) filled in the annular processing chamber; Each of the processing grooves is a straight groove, an inclined groove or a V-shaped groove; The elastic ring (3) is made of polyimide foam or polyurethane foam material; The deformation of the elastic ring (3) can increase as the compressor operating condition increases, so that the effective working volume of the annular processing chamber increases as the compressor operating condition increases, and the elastic ring (3) has adaptive capability, thereby ensuring the improvement of the compressor operating margin and the compressor operating efficiency.

2. The processing casing structure according to claim 1, characterized in that: The inner side of the processing casing (1) is provided with an annular groove; The processing ring (2) is arranged in the annular groove, and the annular processing chamber is formed between the processing ring and the annular groove.

3. The processing casing structure according to claim 2, characterized in that: The side walls of the annular groove are provided with annular grooves; The edge of each end of the processing ring (2) is correspondingly clamped in one of the annular clamping grooves.

4. The processing casing structure according to claim 3, characterized in that: The edge of each end of the processing ring (2) is positioned with the corresponding annular groove through a stopper.

5. A compressor, characterized in that: include: The processing casing structure according to any one of claims 1 to 4, wherein each processing groove surrounds the outer circumference of the first-stage rotor blade (4).

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