Seal ring with streamline groove end face and mechanical seal device

A sealing ring, streamlined technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of large fluid film stiffness and opening force, cannot be obtained, cannot be active, etc., to achieve large opening force and stiffness and load capacity , Good end surface hydrodynamic pressure effect

Active Publication Date: 2015-11-18
内江金鸿曲轴有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the setting of the groove type unable to actively and well match the characteristics of the fluid film on the end surface, so it is difficult to obtain the best hydrodynamic pressure effect on the end surface, and it is also impossible to obtain greater fluid film stiffness and opening force

Method used

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  • Seal ring with streamline groove end face and mechanical seal device
  • Seal ring with streamline groove end face and mechanical seal device
  • Seal ring with streamline groove end face and mechanical seal device

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] Such as figure 1 and figure 2 Shown is a structure of the sealing ring with a streamlined groove end face of the present invention, and 8 to 18 isolation parts 14 (ie weir areas) of the same form with the height of the end plane are separated into a uniform arrangement on the sealing end face. The groove 11. The centerline of the groove 11 is arranged along the streamline track where the particles of the sealing fluid flow inward from the periphery of the sealing ring, and the opening of the groove 11 can be located on the pressure upstream side or the pressure downstream side of the fluid film on the sealing end surface. When the opening of the groove 11 is located on the upstream side of the pressure of the fluid film, the bearing capacity of the fluid film on the sealing end surface can be increased, and it is widely used. When the opening of the groove 11 is located on the downstream side of the pressure of the fluid film, the pressure of the sealing end surface c...

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PUM

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Abstract

The invention provides a seal ring with a streamline groove end face. The end face is provided with shaped grooves which are arranged evenly and divided by isolation components with the height of the end plane and in the same form. The shaped grooves are grooves with the center lines arranged along the streamline tracks for seal fluid particles flowing inwards from the periphery of the seal ring. The ratio range of the opening arc length, along the periphery of the seal ring, of each of the shaped grooves to the arc length of the same radial direction side of the neighboring isolation component is 0.2-5, and the preferred ratio range is 0.8-1.2. According to the seal ring with the streamline groove end face and the mechanical seal device, on the basis of the existing machining technology, the opening force, rigidity and carrying capacity of an end face fluid film on the seal end face are improved by an extremely large margin; the seal ring with the streamline groove end face and the mechanical seal device have better end face fluid hydrodynamic effect compared with traditional seal end face obviously.

Description

technical field [0001] The invention relates to an end face fluid seal element and an end face seal device with the seal element, in particular to a seal ring with a streamlined groove end face and a mechanical seal device using the seal ring. Background technique [0002] Mechanical sealing devices and technologies are widely used in the application of numerous rotating machinery axial end face seals, such as the shaft end seals of various types of pumps, compressors, expanders, separators, reactors and other rotating machines. The basic structure of the fluid end face non-contact mechanical seal device that has been reported and / or used usually includes a stationary ring (static ring), a rotating ring (moving ring), a static ring seat, a shaft sleeve, a transmission pin, a tolerance Ring, compression sleeve, push ring, spring, anti-rotation pin and other components. The static ring and the moving ring are coaxially arranged opposite to each other, and their opposite end f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16
CPCF16J15/16F16J15/34
Inventor 王和顺朱维兵
Owner 内江金鸿曲轴有限公司
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