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High-safe-reliability nuclear-grade seal gasket

A sealing gasket and reliable technology, which is applied in the field of sealing gaskets, can solve problems such as troublesome molding process and poor sealing effect, and achieve the effect of simple molding and better sealing effect

Active Publication Date: 2012-01-11
CIXI HENGLI PACKING & SEALING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of poor sealing effect and troublesome molding process of existing sealing gaskets, the present invention provides a high-safety and reliable nuclear-grade sealing gasket with better sealing effect and simple molding process

Method used

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  • High-safe-reliability nuclear-grade seal gasket
  • High-safe-reliability nuclear-grade seal gasket
  • High-safe-reliability nuclear-grade seal gasket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] refer to figure 1 , image 3 , a high-safety nuclear-grade sealing gasket, including a metal inner ring 1 and a metal outer ring 2, and a flexible graphite ring 3 sandwiched between the metal inner ring 1 and the metal outer ring 2, the metal inner ring The thickness of the ring 1 is equal to the thickness of the metal outer ring 2, and the metal inner ring 1 is flush with the metal outer ring 2, and the flexible graphite ring 3 and the metal inner ring 1, Metal outer rings 2 are even;

[0021] The outer edge of the metal outer ring 2 has a circle of outer deformation grooves extending inward, and the inner edge of the metal inner ring 1 has a circle of inner deformation grooves extending outward. In this embodiment, the outer deformation groove includes an outer flat groove 4 extending inward from the outer edge of the metal outer ring, and an upwardly folded outer tenon groove 5 located at the end of the outer flat groove 4. The end of the outer flat groove 5 has a...

Embodiment 2

[0026] refer to figure 1 , Figure 4 , refer to figure 1 , image 3 , a high-safety nuclear-grade sealing gasket, including a metal inner ring 1 and a metal outer ring 2, and a flexible graphite ring 3 sandwiched between the metal inner ring 1 and the metal outer ring 2, the metal inner ring The thickness of the ring 1 is equal to the thickness of the metal outer ring 2, and the metal inner ring 1 is flush with the metal outer ring 2, and the flexible graphite ring 3 and the metal inner ring 1, Metal outer rings 2 are even;

[0027] The outer edge of the metal outer ring 2 has a circle of outer deformation grooves 10 stretching inward, and the inner edge of the metal inner ring 1 has a circle of inner deformation grooves 11 extending flat outward.

[0028] When forming, the flexible graphite ring 3 is first placed between the metal inner ring 1 and the metal outer ring 2, and then pressure is applied to it to cause a certain amount of deformation of the metal inner ring 1 ...

Embodiment 3

[0031] refer to figure 1 , Figure 5 , a high-safety nuclear-grade sealing gasket, including a metal inner ring 1 and a metal outer ring 2, and a flexible graphite ring 3 sandwiched between the metal inner ring 1 and the metal outer ring 2, the metal inner ring The thickness of the ring 1 is equal to the thickness of the metal outer ring 2, and the metal inner ring 1 is flush with the metal outer ring 2, and the flexible graphite ring 3 and the metal inner ring 1, Metal outer rings 2 are even;

[0032] The outer edge of the metal outer ring 2 has a circle of outer deformation grooves extending inward, and the inner edge of the metal inner ring 1 has a circle of inner deformation grooves extending outward. In this embodiment, the outer deformation groove includes an outer flat groove 4 stretched inward from the outer edge of the metal outer ring, an outer tenon groove 5 folded down at the end of the outer flat groove 4, The end of the outer flat groove 5 has an upwardly prot...

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PUM

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Abstract

The invention discloses a high-safe-reliability nuclear-grade seal gasket which comprises a metal inner ring, a metal outer ring and a flexible graphite ring, wherein the flexible graphite ring is sandwiched between the metal inner ring and the metal outer ring; the thickness of the metal inner ring is equal to that of the metal outer ring, and the metal inner ring is flatly parallel to the metal outer ring; the flexible graphite ring is flatly parallel to the metal inner ring and the metal outer ring; the outer side edge of the metal outer ring is provided with a circle of an external deformation groove; and the inner side edge of the metal inner ring is provided with a circle of an internal deformation groove. When the high-safe-reliability nuclear-grade seal gasket is molded, the flexible graphite ring is arranged between the metal inner ring and the metal outer ring firstly, then, a pressure is applied on the flexible graphite ring, therefore, the molding process is simple and convenient; when in use, the seal gasket is sandwiched between flange plates, through locking lock bolts of flanges, the metal inner ring and the metal outer ring are further deformed, so that a seal effect is achieved by the flexible graphite ring sandwiched between the metal inner ring and the metal outer ring; and in the process of deformation, flexible graphite does not collapse to the end surfaces of the metal inner ring and the metal outer ring, therefore, the seal effect is better.

Description

(1) Technical field [0001] The invention relates to a sealing gasket. (2) Background technology [0002] The general form of the sealing gasket is a wound gasket. The sealing effect of the wound gasket is poor and cannot meet the sealing requirements of the nuclear power level. Therefore, a form of the gasket with a better sealing effect has appeared, such as figure 1 , figure 2 As shown, the sealing gasket includes a metal inner ring 1, a metal outer ring 2, and a flexible graphite ring 3 sandwiched between the metal inner ring 1 and the metal outer ring 2, wherein the metal inner ring 1 and the metal outer ring 2 have upper and lower Dislocation, the metal outer ring 2 is slightly higher than the metal inner ring 1, the upper end surface of the flexible graphite ring 3 is flush with the upper end surface of the metal outer ring 2, and the lower end surface of the flexible graphite ring 3 is flush with the lower end surface of the metal inner ring 1 together. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/00
Inventor 徐绍焕
Owner CIXI HENGLI PACKING & SEALING
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