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A cantilever variable-gap plane cascade experimental device

An experimental device, a technology of variable clearance, which is applied to the components of the pumping device for elastic fluids, the components of the variable volume pump, and the liquid variable volume machinery, etc. Blade structure design and other issues

Active Publication Date: 2019-08-27
DALIAN MARITIME UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The experimental research on the planar cascade is the basis of the experimental research on turbomachinery, and it is also the most common research method. With the deepening of the performance research on the compressor in recent years, the research on the tip clearance and the modification of the tip is more important. In order to verify The reliability of the retrofit scheme often requires experimental research. The existing planar cascades do not have the structural design of variable clearance and cantilever blades, which cannot meet the experimental requirements.

Method used

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  • A cantilever variable-gap plane cascade experimental device
  • A cantilever variable-gap plane cascade experimental device
  • A cantilever variable-gap plane cascade experimental device

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Embodiment 1

[0026] Such as Figure 1 to Figure 3 As shown, a cantilever variable-gap planar cascade test device includes left grid plate 1, blade fixed end plate 2, positioning pin 3, blade fixing plate 4, right grid plate 5, blade 6, positioning screw 7, and fixing bolt 8 And jacking bolt 9, wherein:

[0027] The left grid plate 1 and the right grid plate 5 are arranged oppositely, and the left grid plate 1 and the right grid plate 5 are respectively connected to the test bench through threads, a blade 6 is arranged between the left grid plate 1 and the right grid plate 5, and a The first airfoil through-hole 10 that matches the profile of the blade 6, the blade 6 is installed on the left grid 1 through the first airfoil through-hole 10 and keeps a gap with the right grid 5, so as to realize the fixation of the cantilever blade 6 on one side; The side of the left grid plate 1 away from the right grid plate 5 is provided with threaded blind holes;

[0028] Such as Figure 4 As shown, t...

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Abstract

The invention belongs to the technical field of impeller machinery, and relates to a plane cascade experimental piece structure, in particular to a cantilever clearance-variable plane cascade experimental device. According to the device, a movable blade fixing plate and a movable blade fixing end plate are installed on a cascade side plate left grid plate, so that a novel clearance-variable planecascade experiment grid plate structure is formed, a single-side cantilever blade can be fixed, moreover, the position between the blade fixing plate and the left grid plate can be adjusted through common adjustment of a fixing bolt and a jacking bolt, then the change of the size of a clearance can be carried out, the clearance adjustment of a cantilever blade in the plane cascade is realized, theexperiment research requirements of the blade top clearance change and the blade top modification of a gas compressor can be completely met, and the important significance is achieved for the performance research of the gas compressor.

Description

technical field [0001] The invention belongs to the technical field of impeller machinery, and relates to a plane cascade test piece structure, in particular to a cantilever variable clearance plane cascade test device. Background technique [0002] The experimental research on the planar cascade is the basis of the experimental research on turbomachinery, and it is also the most common research method. With the deepening of the performance research on the compressor in recent years, the research on the tip clearance and the modification of the tip is more important. In order to verify The reliability of the retrofit scheme often requires experimental research, and the existing planar cascades do not have the structural design of variable clearance and cantilever blades, which cannot meet the experimental requirements. Contents of the invention [0003] The purpose of the present invention is to design a cantilever variable gap plane cascade experimental device, which can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/16F04B53/20F04B53/00F04B51/00
Inventor 孙鹏徐文峰傅文广吴宛洋钟兢军
Owner DALIAN MARITIME UNIVERSITY
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