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Dynamic sealing test device and sealing clearance adjustment method

A test device and dynamic sealing technology, which is applied in the direction of measuring device, mechanical component test, machine/structural component test, etc., can solve the problems of increased test data error, large error, and reduced test operation efficiency, so as to ensure uniqueness High accuracy, high precision, reliable test data support effect

Active Publication Date: 2014-09-03
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This adjustment method not only puts forward strict technical requirements for the production and processing of the test seals, increases the labor intensity of workers, and reduces the efficiency of test operations, but also has low precision and large errors in the adjusted preset seal gaps, resulting in test data errors. Increase, unfavorable for the application of seals in engineering

Method used

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  • Dynamic sealing test device and sealing clearance adjustment method
  • Dynamic sealing test device and sealing clearance adjustment method
  • Dynamic sealing test device and sealing clearance adjustment method

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Embodiment Construction

[0026] see figure 1 : This test device is a part of the dynamic seal test system (existing disclosed technology). In the test system, the gas is pressurized by the blower 1 with a large pressure ratio and small flow rate. After the pressurization, it enters the gas storage tank 3 through the silencer 2. The gas is stabilized in the gas storage tank 3. After the pressure is stabilized, it passes through the valve 5 and the turbine. The flow meter 6 enters the sealed cylinder of the test device 10, and the inlet temperature measuring point 8 and the inlet pressure measuring point 7 are respectively set at the gas inlet of the sealed cylinder, and the gas passes through the sealing gap formed by the seal in the test device and the rotor and The gas outlet on the sealed cylinder is discharged into the atmosphere, the outlet pressure measuring point 9 is set at the gas outlet of the sealed cylinder, the vent valve 4 is installed on the pipeline between the valve 5 and the gas stora...

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Abstract

The invention discloses a dynamic sealing test device and a sealing clearance adjustment method. The device comprises a barrel body, a rotor and a variable-frequency motor, wherein the barrel body is provided with an air outlet; a cover board is arranged on the barrel body, and is provided with an air inlet; a sealing piece assembly seat is arranged in the barrel body; a sealing clearance is formed between the sealing piece and the rotor; one end of the rotor is arranged in the barrel body, and the other end of the rotor extends out of the barrel body, and is arranged on a bearing; and the end of the rotor, which extends out of the barrel body, is connected with the output shaft of the variable-frequency motor. The adjustment method comprises the following steps of: 1) arranging a sealing piece on the assembly seat, and mounting the cover board on the assembly seat; 2) determining the sealing clearance to be tested, and selecting a plug gauge of a corresponding specification according to the sealing clearance to be tested; 3) pressing the plug gauge between the sealing piece and the rotor, making the sealing piece tightly press the plug gauge, and tightly screwing a fastening screw on the cover board to position the sealing piece; 4) taking the plug gauge out; and 5) arranging the cover board of the barrel body, butting an air conveying pipeline to the air inlet of the cover board in a sealed manner, and starting a sealing test system.

Description

technical field [0001] The invention relates to a dynamic sealing test technology of a machine (or equipment), in particular to a dynamic sealing test device and a sealing gap adjustment method in the test device. Background technique [0002] The purpose of sealing is to prevent or reduce the leakage of media (including gas, liquid and solid), and it has been widely used in various industries, especially in some special industries (such as machinery, chemical industry, etc.). [0003] Seals are divided into two categories: static seals and dynamic seals, among which dynamic seals need to pass various performance test verifications before they are applied in engineering, especially the test verification of sealing and reliability is the most important. Effective support for applications in engineering. However, since the seal leakage belongs to small gap leakage, there are high requirements for the accuracy of the test data. Only the test data with high precision can guide ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26G01M13/00
Inventor 江生科孙奇孔祥林
Owner DONGFANG TURBINE CO LTD
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