Compressor and its unstable working boundary determination method and device, storage medium
A technology that works stably and determines the method, applied in the field of compressors, can solve problems such as unstable working boundaries, hidden safety hazards of test equipment and measuring instruments, etc., and achieve the effect of reducing safety hazards and improving accuracy
Active Publication Date: 2022-07-19
AECC COMML AIRCRAFT ENGINE CO LTD
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Problems solved by technology
In the compressor test, in order to obtain its complete unstable working boundary, it is usually necessary to perform multiple times of pumping and breathing in the entire speed range, which makes the tested compressor, test equipment and measuring instruments face great safety hazards
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[0059] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application or uses in any way. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.
[0060] The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
[0061] Meanwhile, it...
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The present disclosure relates to a compressor, a method and a device for determining an unstable working boundary thereof, and a storage medium. The method for determining the unstable working boundary of the compressor comprises: determining the power coefficient and loss coefficient of the surge point under the measured converted speed; The corresponding relationship between the power coefficient and the loss coefficient of the surge point at the speed; according to the corresponding relationship between the measured conversion speed and the power coefficient and loss coefficient of the surge point at the measured conversion speed, predict the location of the surge point under the unmeasured conversion speed position to determine the compressor unstable operating boundary. The present disclosure calculates in real time the unstable working boundaries at other converted rotational speeds by using the determined unstable working boundaries, thereby improving the accuracy of prediction and reducing the potential safety hazard of the compressor test.
Description
technical field [0001] The present disclosure relates to the field of compressors, and in particular, to a method and device for determining an unstable working boundary of a compressor, and a storage medium. Background technique [0002] The stable working range of a gas turbine is essentially limited by the unstable working boundaries of its compression components, which are mainly obtained through compressor component tests. During the compressor test, in order to obtain its complete unstable working boundary, it is usually necessary to perform repeated surges in the entire rotational speed range, which makes the tested compressor, test equipment and measuring instruments face great potential safety hazards. SUMMARY OF THE INVENTION [0003] The inventor's research found that: in order to reduce the risk of the compressor surge test and improve the pertinence of the transient surge data measurement in the test, it is necessary to predict the unstable working boundary of...
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IPC IPC(8): F04D27/00
CPCF04D27/001
Inventor 宋明哲蒋平李枚媛
Owner AECC COMML AIRCRAFT ENGINE CO LTD