Measuring method for gap between rotor and stator of centrifugal compressor
A measurement method, centrifugal technology, applied in the direction of mechanical measuring devices, measuring devices, mechanical devices, etc., can solve problems such as substandard starter performance, large rotor and stator parts, and inability to accurately measure the gap between rotor parts and stator parts.
Active Publication Date: 2021-06-04
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0004] The method for measuring the gap between the rotor part and the stator part of the centrifugal compressor provided by the present invention is to solve the problem that the existing measurement method cannot accurately measure the gap value between the rotor part and the stator part, resulting in the assembly of the rotor part and the stator part because the matching gap is too small During the working process, the rotor and static components are damaged by scraping or the fit gap is too large. The performance of the starter is not up to the standard technical problem
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[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.
[0026] figure 1 is a schematic structural view of a centrifugal compressor in a preferred embodiment of the present invention; figure 2 It is a flow chart of the method for measuring the gap between the rotor part and the stator part of the centrifugal compressor of the preferred embodiment of the present invention; image 3 It is a schematic diagram of the theoretical gap assessment position in another preferred embodiment of the present invention; Figure 4 It is a schematic diagram of the inspection position of the tip of the centrifugal impeller in another preferred embodiment of the present invention; Figure 5 It is a schematic diagram of the inspection position of the outer circumference and inner circle of the centrifugal impeller in another preferred e...
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The invention discloses a method for measuring the clearance between a rotor part and a stator part of a centrifugal compressor, which determines the reference value of the outlet clearance of the theoretical centrifugal impeller and the outer cover of the theoretical centrifugal impeller; and obtains at least one outlet clearance reference value and the theoretical size of the drawing according to the outlet clearance reference value and the theoretical size of the drawing. The theoretical centrifugal impeller and the inlet clearance reference value of the theoretical centrifugal impeller cover corresponding to the clearance reference value; determine the coordinates of the theoretical assessment point based on the section where the inlet clearance reference value is located; obtain the actual assessment point of the physical centrifugal impeller and the actual assessment point of the physical centrifugal impeller cover The actual gap value between; when the actual gap value is within the range of the theoretical gap value, the coaxial assembly of the physical centrifugal impeller and the physical centrifugal impeller cover is carried out. The method for measuring the gap between the rotor part and the stator part of the centrifugal compressor of the present invention avoids inaccurate measurement data, which may cause the rotor-stator assembly to be assembled due to the too small fitting gap and damage the rotor-stator part due to scraping during the working process or the matching gap is too large. Starter performance Non-compliance issues.
Description
technical field [0001] The invention relates to the technical field of aero-engines, in particular to a method for measuring the gap between a rotor part and a stator part of a centrifugal compressor. Background technique [0002] Such as figure 1 As shown, the structure of a gas turbine starter compressor is a single-stage centrifugal compressor, which is mainly composed of a centrifugal impeller cover and a centrifugal impeller assembly. The most obvious feature of the structure at the entrance of the centrifugal impeller and impeller cover of this type of starter is that the contour of the impeller is curved, [0003] The mating surface of the rotor (centrifugal impeller) and the stator (centrifugal impeller cover) with a diameter of less than φ150mm is a curved surface structure. The existing method of measuring the gap between the rotor and the stator is generally to simplify the structure of the mating part of the rotor and the stator, so that the mating surface is a ...
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IPC IPC(8): G01B21/16G01B21/20G01B11/24G01B5/00
CPCG01B5/00G01B11/2433G01B21/16G01B21/20
Inventor 刘萌陈凯雷远波李文胜冯鑫张旺夏华腾朱建锋黄欣
Owner CHINA HANGFA SOUTH IND CO LTD