CN219035543U

CN219035543U - Sealing ring of mechanical seal

Info

Publication number: CN219035543U
Application number: CN202120598200.7U
Authority: CN
Inventors: 罗亮; 范翠霞; 王雷; 柳裕; 林伟; 陈麒
Original assignee: Sichuan Chuangong Sealing Technology Co ltd
Current assignee: Sichuan Chuangong Sealing Technology Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2023-05-16
Anticipated expiration: 2031-03-24

Abstract

The utility model relates to the technical field of mechanical sealing, in particular to a sealing ring of mechanical sealing, which comprises a ring body, wherein an annular groove is formed in the end face of the axial direction of the ring body, an elastic part and a compensation ring are arranged in the annular groove, and the elastic part is used for pushing the compensation ring along the axial direction of the ring body. According to the sealing ring of the mechanical seal, under the working condition that the mechanical seal is in severe shaking, the compensation ring in the annular groove on the ring body extends out of the end face of the ring body along the axial direction of the ring body due to the pushing action of the elastic component and is attached to the other sealing ring of the mechanical seal, so that the two sealing rings of the mechanical seal are always in an attached state, and the risk of medium leakage is reduced.

Description

Sealing ring of mechanical seal

Technical Field

The utility model relates to the technical field of mechanical sealing, in particular to a sealing ring of mechanical sealing.

Background

The mechanical seal comprises a shaft sleeve and a seal seat, wherein a movable seal ring is arranged on the shaft sleeve, a static seal ring is arranged on the seal seat, the movable seal ring rotates along with the shaft sleeve and is abutted against the static seal ring to form a seal for the inner cavity of the equipment, and the movable seal ring and the static seal ring are both called as seal rings of the mechanical seal.

However, under the condition of shaking of the equipment, the shaft sleeve and the movable sealing ring shake along with the rotating shaft of the equipment, so that the movable sealing ring and the static sealing ring cannot be tightly matched, and leakage occurs.

Therefore, a technical scheme is needed at present to solve the technical problem that a dynamic sealing ring and a static sealing ring cannot be tightly matched under the working condition of severe shaking of the mechanical seal, so that the mechanical seal is subjected to medium leakage.

Disclosure of Invention

The utility model aims at: the sealing ring of the mechanical seal is provided for solving the technical problem that the dynamic sealing ring and the static sealing ring cannot be tightly matched under the working condition of severe shaking of the mechanical seal in the prior art, so that the mechanical seal is leaked.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the sealing ring of the mechanical seal comprises a ring body, wherein an annular groove is formed in the end face of the axial direction of the ring body, an elastic part and a compensation ring are arranged in the annular groove, and the elastic part is used for pushing the compensation ring along the axial direction of the ring body.

According to the sealing ring of the mechanical seal, under the working condition that the mechanical seal is in severe shaking, the compensation ring in the annular groove on the ring body extends out of the end face of the ring body along the axial direction of the ring body due to the pushing action of the elastic component and is attached to the other sealing ring of the mechanical seal, so that the two sealing rings of the mechanical seal are always in an attached state, and the risk of medium leakage is reduced.

As a preferable scheme of the utility model, the ring body is a silicon carbide structural member. The silicon carbide has high strength, high temperature resistance and wear resistance, and can support the mechanical seal for long-term use.

As a preferable scheme of the utility model, the compensation ring is a graphite structural member. The compensation ring can be pushed to the outside of the annular groove by the elastic component when the equipment shakes, so that the compensation ring is abutted with the other sealing ring of the mechanical seal, the mechanical seal is prevented from leakage, and the graphite material is soft and self-lubricating, so that the compensation ring and the other sealing ring are tightly matched when the equipment shakes, and the risk of leakage of the mechanical seal is further reduced.

As a preferred embodiment of the present utility model, the elastic member includes a plurality of springs. The pushing action of the compensation ring is realized, so that when the equipment shakes, the compensation ring is pushed by the spring to compensate the mechanical seal, and the risk of medium leakage is reduced.

As a preferred embodiment of the present utility model, a plurality of the springs are arranged in a circumferential array along the annular groove. The supporting thrust of the elastic component is uniformly distributed along the end face of the compensation ring, so that the compensation motion of the compensation ring is more stable, the compensation ring is tightly matched with other sealing rings, and the risk of medium leakage is reduced.

As a preferable scheme of the utility model, the elastic component is an annular gasket which is matched with the shape of the annular groove, and the annular gasket is an elastic structural member. The annular gasket made of elastic materials is used as an elastic part, so that the compensation effect on the compensation ring can be realized, and the device is simple in structure and convenient to install.

As a preferable scheme of the utility model, the annular gasket is a rubber structural member. The rubber not only has good elasticity, but also has cheap materials, mature process and low manufacturing cost.

As a preferable scheme of the utility model, the two sides of the annular groove are respectively provided with a mounting groove, an elastic sealing ring is arranged in the mounting groove, and the elastic sealing ring is used for being abutted with the side wall of the compensation ring. The mounting groove is arranged along the circumferential direction of the annular groove, so that a gap between the compensation ring and the side wall of the annular groove is sealed, and medium or other impurities are prevented from entering the annular groove through the sealing surface, so that the elastic component is invalid, or the compensation movement of the compensation ring along the axial direction of the ring body is influenced.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

Drawings

FIG. 1 is a schematic structural view of a seal ring of a mechanical seal in embodiment 1;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic structural view of a seal ring of a mechanical seal in embodiment 3;

FIG. 4 is a schematic structural view of a seal ring of a mechanical seal in embodiment 2;

fig. 5 is an enlarged view at B in fig. 4;

the marks in the figure: the device comprises a 1-ring body, a 11-annular groove, a 12-mounting groove, a 2-compensating ring, a 3-spring, a 4-annular gasket and a 5-elastic sealing ring.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1 and 2, in this embodiment, a seal ring of a mechanical seal includes a ring body 1, an annular groove 11 is provided on an end surface of the ring body 1 in an axial direction, an elastic member and a compensating ring 2 are provided in the annular groove 11, and the elastic member is configured to push against the compensating ring 2 along the axial direction of the ring body 1.

Specifically, the elastic component comprises a plurality of springs 3, so that the pushing action of the compensation ring 2 is realized, and when the equipment shakes, the compensation ring 2 is pushed by the springs 3 to compensate the mechanical seal, so that the risk of medium leakage is reduced;

further, the springs 3 are arranged in a circumferential array along the annular groove 11, so that the pushing force of the elastic component is uniformly distributed along the end face of the compensating ring 2, the compensating movement of the compensating ring 2 is more stable, the compensating ring 2 is more tightly matched with other sealing rings, and the risk of medium leakage is reduced.

Furthermore, the ring body 1 is a silicon carbide structural member, and the silicon carbide is high in strength, high-temperature-resistant, wear-resistant and capable of supporting mechanical seal for long-term use;

further, the compensating ring 2 is a graphite structural member, and the compensating ring 2 can be propped against the outer side of the annular groove 11 by an elastic component when the equipment shakes, so that the compensating ring 2 is propped against the other sealing ring of the mechanical seal, the mechanical seal is ensured not to leak, and the graphite is soft and has self-lubricating property, so that the matching between the compensating ring 2 and the other sealing ring is favorable to be tight when the equipment shakes, and the risk of the mechanical seal leakage is further reduced.

According to the sealing ring of the mechanical seal, under the working condition that the mechanical seal is in severe shaking, due to the pushing action of the elastic component, the compensating ring 2 in the annular groove 11 on the ring body 1 stretches out of the end face of the ring body 1 along the axial direction of the ring body 1 and is attached to the other sealing ring of the mechanical seal, so that the two sealing rings of the mechanical seal are always in an attached state, and the risk of medium leakage is reduced.

Example 2

As shown in fig. 4 and 5, in this embodiment, the difference from embodiment 1 is that the elastic component is an annular gasket 4 with a shape matching with the annular groove 11, the annular gasket 4 is an elastic structural member, and the annular gasket 4 made of an elastic material is used as the elastic component, so that not only can the compensation effect on the compensation ring 2 be achieved, but also the structure is simple and the installation is convenient.

Specifically, the annular gasket 4 is a structural member made of rubber, and the rubber not only has good elasticity, but also has the advantages of cheap material, mature process and low manufacturing cost.

Example 3

As shown in fig. 1, 2 and 3, in this embodiment, the difference from embodiment 1 is that the two sides of the annular groove 11 are respectively provided with a mounting groove 12, the mounting grooves 12 are provided with an elastic sealing ring 5, the elastic sealing ring 5 is used for abutting against the side wall of the compensating ring 2, the mounting grooves 12 are arranged along the circumferential direction of the annular groove 11, so as to seal the gap between the compensating ring 2 and the side wall of the annular groove 11, and avoid that media or other impurities enter into the annular groove 11 through the sealing surface, so that the elastic component is disabled, or the compensating movement of the compensating ring 2 along the axial direction of the ring body 1 is affected.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a sealing ring of mechanical seal, its characterized in that, includes ring body (1), be equipped with annular groove (11) on the terminal surface of ring body (1) axis direction, be equipped with elastomeric element and compensation ring (2) in annular groove (11), elastomeric element is used for following the axis direction of ring body (1) support and push away compensation ring (2), annular groove (11) both sides are equipped with mounting groove (12) respectively, be equipped with elastic sealing ring (5) in mounting groove (12), elastic sealing ring (5) are used for with compensation ring (2) lateral wall butt.

2. A sealing ring for a mechanical seal according to claim 1, characterized in that the ring body (1) is a silicon carbide structural member.

3. A sealing ring for a mechanical seal according to claim 1, characterized in that the compensating ring (2) is a structural member of graphite material.

4. A sealing ring for a mechanical seal according to any of claims 1-3, characterized in that the elastic means comprise a number of springs (3).

5. A sealing ring for a mechanical seal according to claim 4, characterized in that several of the springs (3) are arranged in a circumferential array along the annular groove (11).

6. A sealing ring for a mechanical seal according to any one of claims 1-3, characterized in that the elastic means is an annular gasket (4) adapted to the shape of the annular groove (11), the annular gasket (4) being a structural member of elastic material.

7. A sealing ring for a mechanical seal according to claim 6, characterized in that the annular gasket (4) is a rubber structural member.