Anti-vortex wearable mechanical seal

Abstract

The invention discloses an anti-vortex wearable mechanical seal comprising a rotating ring assembly, a sealing base (24) and a stationary ring assembly composed of a stationary ring (22), a stationary ring base (23), a spring (19), a plug-proof (13), a stationary seal ring (10) and a drive ring (21); the stationary ring base (23) is sleeved on rear of the stationary ring (22); the stationary seal ring (10) is arranged between the stationary ring base (23) and the stationary ring (22); the spring (19), the drive ring (21) and the plug-proof (13) are located between the stationary ring (22) and the sealing base (24); the sealing base (24) is provided with a washing water inlet (3), an inlet channel I (4) and a screw hole (15); right end surface of the sealing base (24) is coated by a rubber protection cover (6); the stationary ring base (23) is sleeved on a step of the rubber protection cover (6). The invention can ensure that the sealing ring in the whole process is not brushed to loss, which effectively ensures sealing performance of mechanical seal.

Description

technical field [0001] The invention relates to a mechanical seal, in particular to an anti-eddy current wear-resistant mechanical seal. Background technique [0002] As we all know, in a rotary pump used to transport fluid medium, in order to prevent the transported medium from leaking outward along the gap between the high-speed rotating pump shaft and the pump casing, we generally need to set up a mechanical seal. During the whole working process of the above-mentioned mechanical seal, in order to prevent the medium from corroding the spring and the anti-rotation pin, we usually set a seal seat in the mechanical seal, and the seal seat is provided with a screw hole for connecting with the pump cover; the seal The seat is tightly fitted with a static ring seat; the inner cavity of the static ring seat is provided with a static ring; after the assembly of the static ring is completed, a cavity will be formed between the static ring and the sealing seat, and the spring Both...

AI Technical Summary

Problems solved by technology

Although the corrosion problem of the spring and the anti-rotation pin has been better solved, because the above-mentioned sealing seat is in the whole working process, its right end surface is usually in direct contact with the medium delivered by the rotary pump, and the medium is in The rotary pump generally flows forward in the form of vortex flow. Therefore, the high-speed flowing medium often washes the sealing seat repeatedly, which causes the erosion and wear of the sealing seat, especially when the rotary pump transports solid particles. When the medium is used, the high-speed rotating granular medium will further accelerate the erosion and wear of the seal seat. This long-term erosion and wear of the seal seat will cause the right end surface of the seal seat to gradually become thinner, and eventually cause the sealing seat. The screw hole connecting the pump cover is exposed to the medium, which causes the medium to leak out along the screw hole

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