Processing casing structure and gas compressor comprising same
A technology for processing casings and compressors, which is applied in the directions of machines/engines, mechanical equipment, liquid fuel engines, etc., and can solve the problems of difficult adaptation of processing casings, adjustment of the volume of difficult air chambers, etc.
Active Publication Date: 2021-02-05
AECC SHENYANG ENGINE RES INST
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Problems solved by technology
[0005] 1) Due to the height variation between the rotor blades of each stage of the compressor, if it is necessary to set the height of the first-stage rotor blades of the processing casing structure on its outer periphery, the height of the first-stage rotor blades is lower than that of the adjacent stage rotor blades, and the whole-ring processing casing is difficult. The adaptability is set on the outer periphery of the rotor blade of this stage;
[0006] 2) In some cases, in order to obtain a better working margin improvement effect on the compressor, the design of the treatment casing and the treatment ring has an air chamber that communicates with each treatment tank, but different compressors and different working states of the compressor There are different requirements for the volume of the air chamber, and it is difficult to adjust the volume of the air chamber under the current structure
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[0044] In order to make the technical solution of the present application and its advantages clearer, the technical solution of the present application will be further clearly and completely described in detail below in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only part of the application Examples 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 drawings, and other relevant parts can refer to the general design. In the case of no conflict, the embodiments in the application and the technologies in the embodiments Features can be combined with each other to obtain new embodiments.
[0045] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the application shall have the usual meanings und...
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The invention belongs to the technical field of gas compressor working margin improvement design and particularly relates to a processing casing structure. The processing casing structure comprises two semi-annular processing casings and two semi-annular processing rings. The semi-annular processing casings are in butt joint with each other to form a whole annular processing casing; and the two semi-annular processing rings are provided with a plurality of processing grooves, are arranged in the whole annular processing casing and are in butt joint with each other to form the whole annular processing ring. In addition, the invention relates to a gas compressor. The gas compressor comprises the processing casing structure, and the processing casing structure is arranged on a first-stage rotor blade of the gas compressor in a sleeving manner.
Description
technical field [0001] The application belongs to the technical field of compressor working margin improvement design, and in particular relates to a processing casing structure and a compressor thereof. Background technique [0002] With the continuous pursuit of low fuel consumption and high thrust-to-weight ratio of aero-engines, the requirements for the stage load and operating margin of the compressor are also increasing. However, a higher stage load will inevitably lead to a reduction in the operating margin of the compression parts. To solve the contradiction between the high-level load of the compression parts and the high working margin, the design technology of the casing structure came into being. [0003] The treatment casing structure includes a treatment casing and a treatment ring set in the treatment casing. The treatment ring has a treatment groove, and the treatment casing and its treatment ring are set on the outer circumference of a certain stage of the c...
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IPC IPC(8): F04D29/40
CPCF04D29/403
Inventor 曹铁男侯鹏孙太璐
Owner AECC SHENYANG ENGINE RES INST