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Gas compressor test device, sealing device and manufacturing method thereof

A test device and compressor technology, applied to components of pumping devices for elastic fluids, pump control, mechanical equipment, etc., can solve problems such as complex thermal and structural characteristics, which are not enough to meet industrial applications

Active Publication Date: 2021-01-29
AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity of its internal aerodynamic, thermal and structural characteristics, people are still exploring how to grasp the operating conditions in the compressor
Although great progress has been made in the numerical simulation of the working conditions in the compressor, it is still not enough for practical industrial applications

Method used

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  • Gas compressor test device, sealing device and manufacturing method thereof
  • Gas compressor test device, sealing device and manufacturing method thereof
  • Gas compressor test device, sealing device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Below, refer to Figure 1 to Figure 3A compressor test device according to an embodiment of the present invention will be described. In this embodiment, as an example, the compressor test device includes an outlet section for ensuring the smooth discharge of gas.

[0055] figure 1 is a schematic cross-sectional view of an outlet section of a compressor test device according to an embodiment of the present invention.

[0056] Such as figure 1 As shown, as an example, the outlet section of the compressor test device can be divided into several parts according to the structure, including balance chamber 1, balance chamber front chamber 2, balance chamber rear chamber 3, bearing chamber 4, main channel 5, exhaust section 6. The balance chamber 1 can be filled with high-temperature and high-pressure gas, so that the rotor balance plate (not shown) obtains an axial force along the direction of airflow, which is used to balance the axial force of the rotor against the flow...

Embodiment 2

[0064] Hereinafter, a sealing device for a compressor test device according to an embodiment of the present invention will be described.

[0065] In the compressor test device, for example, the stator section of the balance chamber and the load-bearing casing in the outlet section of the compressor test device are formed as a whole to serve as a sealing device for avoiding the leakage of high-temperature and high-pressure gas in the flow channel Enter the peripheral cavity of the rear bearing cavity inside the rear bearing casing.

[0066] Optionally, the above-mentioned sealing device further includes an exhaust pipeline in the front chamber of the balance chamber. The exhaust pipeline of the front chamber of the balance chamber is integrated with the load-bearing casing and the stator section of the balance chamber as a sealing device. The exhaust line of the front chamber of the balance chamber is used to lead the gas in the front chamber of the balance chamber out of the ...

Embodiment 3

[0068] Hereinafter, a manufacturing method for manufacturing a sealing device used in a compressor test device according to an embodiment of the present invention will be described.

[0069] In this manufacturing method, for example, the outlet section of the compressor test device is molded into The stator section of the balance chamber and the load-bearing casing are formed as a whole (that is, formed as an integral structure), thereby manufacturing a sealing device.

[0070] Optionally, the above-mentioned manufacturing method further includes forming the sealing device to have an exhaust line in the front cavity of the balance cavity, and the exhaust line in the front cavity of the balance cavity is used to lead the gas in the front cavity of the balance cavity out of the compressor test device . For example, through the molding process (for example, one or more of injection molding, powder accumulation molding, integral pressing molding, extrusion forging and other proce...

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Abstract

In a conventional gas compressor test device, the lap-joint position is generally poor in gas tightness, and high-temperature and high-pressure gas in a main flow channel inevitably leaks into the inner side of an inner casing, consequently, the cavity temperature in a rear bearing cavity is increased, and the risk of coking or spontaneous combustion of lubricating oil in the bearing cavity exists. In order to solve the above problems, the invention provides a gas compressor test device, a sealing device and a manufacturing method thereof. The gas compressor test device comprises an outlet section, and is characterized in that the outlet section comprises a balance cavity, wherein the balance cavity comprises a balance cavity stator section and a balance cavity front cavity, the balance cavity front cavity comprises a force bearing casing, and the force bearing casing and the balance cavity stator section form a whole to serve as the sealing device. According to the gas compressor testdevice, high-temperature gas brought due to the existence of the balance cavity does not leak to a peripheral cavity of the rear bearing cavity in the inner side of the force bearing casing any more,so that the safe operation of the gas compressor test device is guaranteed.

Description

technical field [0001] The present invention relates to a compressor, and more particularly, to a compressor test device, a sealing device for the compressor test device and a manufacturing method thereof. Background technique [0002] As one of the core components of the engine, the compressor needs to have a high boost ratio and high efficiency so that the engine can obtain higher thermal efficiency and unit power. However, due to the complexity of its internal aerodynamic, thermal and structural characteristics, people are still exploring how to grasp the operating conditions in the compressor. Although great progress has been made in the numerical simulation of the working conditions in the compressor, it is still not enough for practical industrial applications. Therefore, in order to better understand the real flow law of the airflow in the compressor and the aerodynamic performance at non-design points to solve potential problems in compressor design, it is still nec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00F04D29/08
CPCF04D27/001F04D29/083F05D2260/83
Inventor 王家广秦文胡淑慧曹传军
Owner AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD