Underwater seal device

A technology of sealing device and sealing ring, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of increasing wear of parts, potential safety hazards, affecting product quality, etc., and achieve good dynamic sealing effect and prevent medium intrusion.

Inactive Publication Date: 2017-09-22
南京恒兴达机电设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The intrusion of air, water or dust into the equipment will pollute the working medium, affect product quality, increase wear and tear of parts, and shorten machine life.

Method used

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  • Underwater seal device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The present invention provides an underwater sealing device, which includes a housing, a first end cover 7, a first sealing ring 8, a second end cover 6, and a second sealing ring 10.

[0025] The housing has an assembly cavity, and the first end cover 7 and the second end cover 6 are respectively connected to the two ends of the housing; the first end cover 7 has a first matching hole, and the first end cover 7 passes through the first sealing ring 8 It forms a dynamic seal with the matching piece 9 installed in the first matching hole. The second end cover 6 has a second matching hole, and the second end cover 6 forms a dynamic seal with the matching member 9 installed in the second matching hole through the second sealing ring 10.

[0026] The fitting 9 has at least a revolving part with an axis as a revolving shaft.

[0027] The housing has a first coupling flange and a second coupling flange, and both the first coupling flange and the second coupling flange have mounting...

Embodiment 2

[0031] The present invention provides an underwater sealing device, which includes a housing, a first end cover 7, a first sealing ring 8, a third end cover 3, a third sealing ring 5, and an emergency sealing gland 4.

[0032] The housing has an assembly cavity, the first end cover 7 and the third end cover 3 are respectively connected to the two ends of the housing; the first end cover 7 has a first matching hole, the first end cover 7 passes through the first sealing ring 8 It forms a dynamic seal with the matching piece 9 installed in the first matching hole. The third end cover 3 has a third matching hole, and the third end cover 3 forms a static seal with the matching member 9 installed in the third matching hole through the third sealing ring 5.

[0033] The emergency sealing gland 4 has an axially extending annular protrusion; the third end cover 3 has a receiving hole communicating with the third matching hole, the cross-sectional area of ​​the receiving hole is larger than...

Embodiment 3

[0039] Such as figure 1 As shown, the present invention provides an underwater sealing device, including: a housing, a first end cover 7, a first sealing ring 8, a second end cover 6, a second sealing ring 10, a third end cover 3, and a third Sealing ring 5 and emergency sealing gland 4.

[0040] The housing has an assembly cavity. The first end cover 7, the second end cover 6 and the third end cover 3 are sequentially connected to the housing; the first end cover 7 has a first matching hole, and the first end cover 7 passes through the first The sealing ring 8 and the matching piece 9 installed in the first matching hole constitute a dynamic seal. The second end cover 6 has a second matching hole, and the second end cover 6 forms a dynamic seal with the matching member 9 installed in the second matching hole through the second sealing ring 10. The third end cover 3 has a third matching hole, and the third end cover 3 forms a static seal with the matching member 9 installed in ...

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PUM

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Abstract

The invention discloses an underwater sealing device, which is characterized in that it comprises: a housing, a first end cover (7) and a first sealing ring (8); the housing has an assembly cavity, and the first end The cover (7) is connected to the housing; the first end cover (7) has a first matching hole, and the first end cover (7) is installed on the The fitting (9) in the first fitting hole constitutes a dynamic seal. The beneficial effects achieved by the present invention are: better dynamic sealing effect can be provided, and at the same time, medium intrusion can be prevented through static sealing when the dynamic sealing fails.

Description

Technical field [0001] The invention belongs to the technical field of movable sealing, and specifically relates to an underwater sealing device. Background technique [0002] Sealing is a measure to prevent the working medium from leaking from the machine (or equipment) or the intrusion of external impurities into its interior. The sealed working medium can be gas, liquid or powdery solid. Seals are divided into static seals and dynamic seals. The seals between relatively static parts in machinery (or equipment) are called static seals; the seals between relatively moving parts are called dynamic seals. Poor sealing will reduce machine efficiency, cause waste and pollute the environment. Leakage of flammable, explosive or toxic working media will endanger the safety of people and equipment. The intrusion of air, water or dust into the equipment will contaminate the working medium, affect the quality of the product, increase the wear of parts, and shorten the life of the machi...

Claims

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Application Information

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IPC IPC(8): F16J15/06F16J15/32
CPCF16J15/06F16J15/32
Inventor 卜用暹
Owner 南京恒兴达机电设备制造有限公司
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