Elastic sealing element for reciprocating moving equipment

Abstract

The invention relates to an elastic sealing element for reciprocating moving equipment and a sealing method thereof. The elastic sealing element for the reciprocating moving equipment is provided an annular cavity; the annular cavity is formed by placing an inner cylinder into an outer cylinder and respectively sealing two ends of the inner cylinder and the outer cylinder; an injection pipe is arranged on the outer cylinder; a one-way valve is arranged in the injection piece; the inner cylinder and outer cylinder are both made of an elastic material; the annular cavity is formed out of external equipment which is required to be subjected to sealing treatment; the external equipment which is required to be subjected to the sealing treatment surrounds out of the annular cavity; a liquid is injected into the annular cavity through the injection pipe; the inner surface of the inner cylinder and the outer surface of the outer cylinder are respectively in contact with sealing surfaces whichmove relatively; when the sealing surfaces slide relatively, the annular cavity completes rolling through self-deformation under the action of shearing force; and sliding friction is replaced by utilizing rolling friction. The elastic sliding element provided by the invention does not generate sliding displacement with the sealing surfaces which move relatively, so that the equipment tightness andthe equipment operation stability are improved.

Description

Technical field:

[0001] The invention relates to the sealing technology of reciprocating dynamic equipment in the field of mechanical engineering and mechanical equipment, and specifically relates to an elastic sealing element and a sealing method for reciprocating dynamic equipment. Background technique:

[0002] Sealing is a necessary measure to prevent the leakage of the working medium inside the equipment or the entry of external media, and it can be used for gas, liquid, solid powder and other media. Adverse effects such as poor equipment sealing scheme or poor airtightness will cause low equipment operation efficiency, increase wear and tear of parts, affect product quality, and waste resources. important impact on safety.

[0003] Sealing can be divided into static sealing and dynamic sealing according to specific working conditions. Generally speaking, there is no relative moving surface under static sealing working conditions, and the airtightness requirements can ...

Examples

Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the present invention will be further described:

[0021] combine figure 1 , figure 2 , image 3 As shown, the elastic sealing element for reciprocating dynamic equipment has an annular cavity 1, the annular cavity 1 is placed in the outer cylinder 3 by the inner cylinder 2, and the two ends of the inner cylinder 2 and the outer cylinder 3 are respectively closed Formed, the outer cylinder 3 is provided with an injection pipe 4, and a one-way valve is arranged in the injection pipe 4, and the inner cylinder 2 and the outer cylinder 3 are made of elastic materials; the ring-shaped cavity 1 is placed outside the internal equipment that needs to be sealed. , the external equipment that needs to be sealed is surrounded by the annular cavity 1, and the internal equipment that needs to be sealed and the external equipment that needs to be sealed are reciprocating relative to each other, resulting in a relatively moving sealin...

Technical field:

[0001] The invention relates to the sealing technology of reciprocating dynamic equipment in the field of mechanical engineering and mechanical equipment, and specifically relates to an elastic sealing element and a sealing method for reciprocating dynamic equipment. Background technique:

[0002] Sealing is a necessary measure to prevent the leakage of the working medium inside the equipment or the entry of external media, and it can be used for gas, liquid, solid powder and other media. Adverse effects such as poor equipment sealing scheme or poor airtightness will cause low equipment operation efficiency, increase wear and tear of parts, affect product quality, and waste resources. important impact on safety.

[0003] Sealing can be divided into static sealing and dynamic sealing according to specific working conditions. Generally speaking, there is no relative moving surface under static sealing working conditions, and the airtightness requirements can ...

Examples

Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the present invention will be further described:

[0021] combine figure 1 , figure 2 , image 3 As shown, the elastic sealing element for reciprocating dynamic equipment has an annular cavity 1, the annular cavity 1 is placed in the outer cylinder 3 by the inner cylinder 2, and the two ends of the inner cylinder 2 and the outer cylinder 3 are respectively closed Formed, the outer cylinder 3 is provided with an injection pipe 4, and a one-way valve is arranged in the injection pipe 4, and the inner cylinder 2 and the outer cylinder 3 are made of elastic materials; the ring-shaped cavity 1 is placed outside the internal equipment that needs to be sealed. , the external equipment that needs to be sealed is surrounded by the annular cavity 1, and the internal equipment that needs to be sealed and the external equipment that needs to be sealed are reciprocating relative to each other, resulting in a relatively moving sealin...

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