Radial ring seal

A technology of ring seals and seal sleeves, which is applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve problems such as the impossibility of fundamentally solving the airflow excitation and vibration, and achieve obvious effects of turbulent flow resistance increase, convenient adjustment of sealing gaps, and structural simple effect

Inactive Publication Date: 2010-07-14
SOUTHEAST UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Therefore, the problem of airflow exc

Method used

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  • Radial ring seal
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Examples

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[0021] A radial ring seal, comprising: a rotor 5 and a sealing sleeve 1 sleeved on the rotor 5, a sealing cavity 9 is provided in the sealing sleeve 1, an adjusting plate 7 is slidably connected to the sealing cavity 9, and the sealing cavity 9 An adjusting screw 2 is provided on the upper part. One end of the adjusting screw 2 is used as an adjusting end and is located outside the sealing sleeve 1, the other end of the adjusting screw 2 is rotatably connected with the adjusting plate 7, and a sealing disc 8 is provided on the rotor 5. An annular sealing tooth 3 is provided on the adjusting plate 7 and the annular sealing tooth 3 is located between the sealing disc 8 and the adjusting plate 7.

[0022] figure 1 As shown, a sealing disk is designed on the rotating shaft. There is an adjusting plate on both sides of the sealing plate. An array of ring seals with different diameters are installed on the adjusting plate. The gap between the ring seal and the sealing disk can be easily...

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Abstract

The invention discloses a radial ring seal. The radial ring seal comprises a rotor (5) and a seal sleeve (1) sleeved on the rotor (5), wherein a seal cavity (9) is formed in the seal sleeve (1) and connected with an adjusting plate (7) in a sliding way; the seal cavity (9) is provided with an adjusting screw (2); one end of the adjusting screw (2) serves as an adjusting end and is positioned outside the seal sleeve (1), and the other end of the adjusting screw (2) is rotatably connected with the adjusting plate (7); the rotor (5) is provided with a seal disc (8); and the adjusting plate (7) is provided with ring seal teeth (3) which are positioned between the seal disc (8) and the adjusting plate (7). The radial ring seal changes axial flow of gas into radial flow, eliminates the axial spiral flow and has a lower leakage rate than ordinary seal; and the flow directions of air flow forces on the two sides of the seal disc are opposite to each other and can be partially counteracted, so the air flow force in the seal is remarkably reduced.

Description

technical field [0001] The invention relates to a type of seal applied to a rotary machine, in particular to a radial annular seal used in a rotary machine. Background technique [0002] At present, the leakage and wear resistance are the main factors considered in the design of the seal. With the continuous improvement of the parameters of the working medium, the excitation force of the air flow in the seal becomes larger and larger, and the fault of the air flow excitation becomes more and more prominent. Therefore, the dynamic characteristics of the seal It is also becoming more and more important. For this reason, on the basis of the traditional sparse-tooth seal, by changing the structure of the seal itself, new types of seals such as honeycomb, brush, reverse swirl, damping, spiral groove, ladder, and mixing have been proposed, and certain effects have been achieved. However, the sealing structure is becoming more and more complex, and the contradiction between leakag...

Claims

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Application Information

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IPC IPC(8): F16J15/16
Inventor 杨建刚张万福曹浩孙丹郭瑞
Owner SOUTHEAST UNIV
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