CN215980082U - Integrated self-cooling circulating mechanical seal - Google Patents
Integrated self-cooling circulating mechanical seal Download PDFInfo
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- CN215980082U CN215980082U CN202121174619.6U CN202121174619U CN215980082U CN 215980082 U CN215980082 U CN 215980082U CN 202121174619 U CN202121174619 U CN 202121174619U CN 215980082 U CN215980082 U CN 215980082U
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Abstract
The utility model belongs to the field of mechanical seals for pumps, and discloses a self-cooling circulation mechanical seal, which aims to solve the technical problems in the mechanical seal of a centrifugal pump of a corrosion-resistant chemical pump in the prior art. The utility model has the advantages of convenient installation, space saving, compact and simple whole structure and cost saving.
Description
Technical Field
The utility model relates to the field of mechanical seals for pumps, in particular to a packaging type self-cooling circulation mechanical seal.
Background
The corrosion-resistant chemical pump usually uses an external mechanical seal, because the metal piece of the mechanical seal is not contacted with a conveying medium, the service life and the application range of the mechanical seal are prolonged, but if the cooling channel is blocked due to crystallization under the working conditions of crystallization and intermittent operation, the mechanical seal cannot be cooled, and the mechanical seal can be damaged. If the common container mechanical seal is used, metal parts are inevitably soaked in a conveying medium, so that the requirement on the corrosion resistance of the metal parts is high, and each metal can only resist one corrosive medium, so that the form of the mechanical seal is more, and the inventory pressure is caused. In addition, the situation that the cooling water cannot be externally connected on site is often encountered, and the integrated mechanical seal must be externally connected with the cooling water, so that the use of the integrated mechanical seal is limited, and the current technology cannot solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems in the prior art of corrosion-resistant chemical pump centrifugal pump mechanical seal, and provides a packaging type self-cooling circulation mechanical seal which is convenient to install and maintain and long in service life.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a collection dress formula self-cooling circulation mechanical seal, including the machine sealing cover, the cooling water inlet has been seted up on the machine sealing cover, the cooling water outlet, first quiet ring is equipped with to one side of machine sealing cover, the quiet ring seat of second is equipped with to the opposite side of machine sealing cover, the machine sealing cover is built-in to have elasticity spacing subassembly, first rotating ring is equipped with to the inboard of first quiet ring, first rotating ring seat has been clamped on the first rotating ring, the quiet ring of second is equipped with to the inboard of the quiet ring seat of second, the inboard of the quiet ring of second is equipped with the second rotating ring, and the second rotating ring seat has been clamped on the second rotating ring, the spacing subassembly of elasticity is used for spacing first rotating ring seat and second rotating ring seat, and form cooling channel between cooling water inlet, first rotating ring seat, second rotating ring seat and the cooling water outlet, and be equipped with the power unit that is used for cooling circulation on the second rotating ring seat.
Furthermore, a water-stop plate is arranged between the cooling water inlet and the cooling water outlet on the inner side of the machine sealing cover, an annular flow channel is arranged on one side of the water-stop plate close to the inner side of the machine sealing cover at the cooling water outlet, the side end face of the second moving ring seat is positioned between the annular flow channels, a plurality of blades are arranged on the side end face of the second moving ring seat, and the power mechanism is a blade.
Furthermore, the elastic limiting assembly comprises a spring seat, the second moving ring is installed on the spring seat, the outer circle of the second moving ring is clamped with one side of the second moving ring seat, the middle of the second moving ring seat is provided with a clamping boss, the other side of the second moving ring seat is installed in a matched mode with the spring seat, and a spring used for clamping the first moving ring seat and the second moving ring seat is installed on the spring seat.
Furthermore, one side of the first stationary ring is provided with an anti-loosening O-shaped ring, and an anti-loosening inclined plane is arranged on the machine seal cover at the position matched with the anti-loosening O-shaped ring.
Furthermore, the end part of the second static ring seat, which extends out of the spring seat, is also provided with a locking assembly for locking the spring seat.
Furthermore, an anti-rotation mechanism is arranged between the spring seat and the second movable ring seat; the anti-rotation mechanism comprises anti-rotation grooves uniformly distributed on the spring seat, and anti-rotation blocks matched with the anti-rotation grooves are arranged on the second rotating ring seat; and a spring seat O-shaped ring is arranged between the spring seat and the pump shaft.
Furthermore, the locking assembly comprises a locking ring arranged at the end part of the spring seat, and a locking bolt is arranged on the locking ring; the end part of the spring seat is also provided with a locking groove.
Furthermore, a static ring O-shaped ring is arranged between one side of the first static ring close to the pump cover and the mechanical sealing cover, and an organic sealing cover O-shaped ring is arranged between the other side of the first static ring and the mechanical sealing cover; a first moving ring O-shaped ring is arranged between the first moving ring and the pump shaft; a second moving ring O-shaped ring is arranged between the spring seat and the second moving ring; and a second static ring O-shaped ring is arranged between the second static ring seat and the mechanical seal cover.
Furthermore, a second stationary ring L-shaped sealing gasket is arranged between the second stationary ring and the second stationary ring seat.
Furthermore, a plurality of spring holes are uniformly distributed on the spring seat, and the spring holes are used for mounting springs.
Compared with the prior art, the utility model has the following beneficial effects:
the mechanical seal cover, the first movable ring, the elastic limiting assembly, the second movable ring and the second stationary ring are assembled into a whole through the first stationary ring and the second stationary ring seat to form a packaging structure, the mechanical seal cover is connected with the pump cover through the stop buckle on the mechanical seal cover, a designed sealing force can be generated only after the mechanical seal cover is tightly pressed with the pump cover, the mechanical seal cover is convenient to install, and the precision of mechanical seal can be guaranteed. In addition, the utility model is provided with a cooling channel for cooling the mechanical seal, and the blades are arranged on the second movable ring seat, so that when the second movable ring seat rotates along with the pump shaft, power is provided for the circulation of cooling water, the cooling water continuously circulates to bring heat produced by friction of the static ring and the movable ring into the cooling water bucket through the cooling water outlet, and the heat is exchanged with air after entering the cooling water bucket and enters the mechanical seal through the cooling water inlet. Self-circulation cooling of the mechanical seal is achieved. The power parts for circulating cooling do not need to be designed independently, so that the space is saved, the whole structure is compact and simple, and the cost is saved.
The elastic limiting component is a spring seat arranged on the pump shaft, the limiting installation of the first movable ring, the first movable ring seat, the second movable ring and the second movable ring seat is realized by utilizing the spring seat, meanwhile, one side of the spring acts on the first movable ring seat and is used for sealing media, and the other side of the spring acts on a clamping boss of the second movable ring seat and is used for sealing cooling water. The spring seat may provide a sealing force to both sealing surfaces simultaneously.
According to the utility model, the anti-loosening O-shaped ring is arranged on one side of the first static ring, and the machine sealing cover at the matching part of the anti-loosening O-shaped ring is provided with the anti-loosening inclined plane, so that the first static ring 1 can be prevented from falling from the machine sealing cover 3; due to the inclined plane, the O-shaped ring is easy to enter during installation, and the O-shaped ring is blocked to prevent falling after entering.
According to the utility model, the water-stop plate is arranged between the cooling water inlet and the cooling water outlet on the inner side of the machine sealing cover, and the cooling water forms a high-pressure and low-pressure separation area by utilizing the water-stop plate, so that the pressure and the efficiency of conveying and cooling are increased.
The annular flow passage is used for collecting cooling water conveyed by the blades on the second movable ring seat to form pressure to convey the cooling water to the cooling water outlet, so that the cooling water is circulated.
The spring seat is locked on the pump shaft by the locking ring and the locking bolt, and the spring seat is easy to deform through the locking ring by the locking groove and then locked on the pump shaft.
The anti-rotation groove and the anti-rotation block are matched to form the anti-rotation mechanism, so that the first rotating ring and the second rotating ring are prevented from rotating relative to the spring seat.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the enclosure of the present invention.
Fig. 3 is a schematic structural view of the spring seat of the present invention.
Fig. 4 is a side view of the spring seat of the present invention.
Fig. 5 is a schematic structural diagram of a second rotating ring seat according to the present invention.
Fig. 6 is a side view of a second rotating ring mount of the present invention.
Fig. 7 is a partially enlarged schematic view of fig. 1.
The reference numerals have the following meanings: 1. a first stationary ring; 2. a stationary ring O-shaped ring; 3. a machine sealing cover; 4. an O-shaped ring of the machine sealing cover; 5. an anti-loosening O-shaped ring; 6. a first rotating ring; 7. a cooling water inlet; 8. a first moving ring O-shaped ring; 9. a first movable ring seat; 10. a spring; 11. a spring seat O-shaped ring; 12. a cooling water outlet; 13. a second movable ring seat; 14. a second rotating ring; 15. a second moving ring O-shaped ring; 16. a second stationary ring O-ring; 17. a second stationary ring; 18. a second stationary ring L-shaped seal; 19. a second stationary ring seat; 20. locking a ring; 21. locking the bolt; 22. a spring seat; 23. a cooling water bucket; 24. a locking inclined plane; 25. a water-stop sheet; 26. an annular flow passage; 27. a locking groove; 28. an anti-rotation slot; 29. a spring hole; 30. a rotation prevention block; 31. a blade; 32. and clamping the boss.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
As shown in fig. 1 to 7, a container type self-cooling circulation mechanical seal, includes a machine enclosure 3, a cooling water inlet 7 and a cooling water outlet 12 are provided on the machine enclosure 3, a first stationary ring 1 is installed on one side of the machine enclosure 3, a second stationary ring seat 19 is installed on the other side of the machine enclosure 3 through bolt fastening, a second stationary ring O-ring 16 is installed between the second stationary ring seat 19 and the machine enclosure 3, and cooling water is sealed. An elastic limiting assembly is arranged in the machine sealing cover 3, an anti-loosening O-shaped ring 5 is arranged on one side of the first stationary ring 1, and an anti-loosening inclined surface 24 is arranged on the machine sealing cover 3 at the position matched with the anti-loosening O-shaped ring 5. A static ring O-shaped ring 2 is arranged between one side, close to the pump cover, of the first static ring 1 and the mechanical seal cover 3, and the first static ring 1 is sealed through the static ring O-shaped ring 2 and the pump cover to prevent the leakage of a conveying medium. An organic sealing cover O-shaped ring 4 is arranged between the other side of the first static ring 1 and the mechanical sealing cover 3 to prevent cooling water from leaking.
A first movable ring 6 is arranged on the inner side of the first stationary ring 1, a first movable ring O-shaped ring 8 is arranged between the first movable ring 6 and the pump shaft, and sealing is formed between the first movable ring and the pump shaft to seal cooling water. The first movable ring 6 is clamped with a first movable ring seat 9, the inner side of a second stationary ring seat 19 is provided with a second stationary ring 17, and a second stationary ring L-shaped sealing gasket 18 is arranged between the second stationary ring 17 and the second stationary ring seat 19 to prevent cooling water leakage. The inner side of the second stationary ring 17 is provided with a second movable ring 14, the second movable ring 14 is clamped with a second movable ring seat 13, and the second movable ring 14 is hot-mounted on the second movable ring seat 13 during installation. And a second movable ring O-shaped ring 15 is arranged between the spring seat 22 and the second movable ring 14 to seal cooling water. The elastic limiting assembly is used for limiting the first moving ring seat 9 and the second moving ring seat 13, the second moving ring seat 13 is provided with blades 31, the second moving ring seat 13, the first moving ring 6, the second moving ring 14 and the elastic limiting assembly rotate integrally with the pump shaft, cooling channels are formed among the cooling water inlet 7, the first moving ring seat 9, the second moving ring seat 13 and the cooling water outlet 12, a water stop plate 25 is arranged between the cooling water inlet 7 and the cooling water outlet 12 on the inner side of the machine seal cover 3, an annular flow channel 26 is arranged on the inner side of the machine seal cover 3, close to the cooling water outlet 12, on one side of the water stop plate 25, the blades 31 are arranged on the second moving ring seat 13, close to the circulation channel 26, and the number of the blades 31 is determined according to the axial diameter of the pump shaft.
The elastic limiting assembly comprises a spring seat 22, a second movable ring 14 is arranged on the spring seat 22, the outer circle of the second movable ring 14 is clamped with one side of a second movable ring seat 13, a clamping boss 32 is arranged in the middle of the second movable ring seat 13, the other side of the second movable ring seat 13 is matched and arranged with the spring seat 22, a plurality of spring holes 29 are uniformly distributed on the spring seat 22, springs 10 for clamping the first movable ring seat 9 and the second movable ring seat 13 are arranged in the spring holes 29, a locking assembly for locking the spring seat 22 is further arranged at the end part, extending out of the spring seat 22, of a second stationary ring seat 19, the locking assembly comprises a locking ring 20 arranged at the end part of the spring seat 22, and a locking bolt 21 is arranged on the locking ring 20; the end part of the spring seat 22 is also provided with a locking groove 27, and an anti-rotation mechanism is arranged between the spring seat 22 and the second rotating ring seat 13; the anti-rotation mechanism comprises anti-rotation grooves 28 uniformly distributed on the spring seat 22, anti-rotation blocks 30 matched with the anti-rotation grooves 28 are arranged on the second rotating ring seat 13, and a spring seat O-shaped ring 11 is arranged between the spring seat 22 and the pump shaft.
The first movable ring, the second movable ring, the first static ring and the second movable ring are all made of silicon carbide, all O-shaped rings are made of fluororubber, and all other metal parts are made of stainless steel.
During installation, after the stop buckle of the mechanical seal cover 3 which is integrally formed and mechanically sealed is connected with the pump cover and is tightly fastened and compressed by a bolt, the whole pump is arranged on the pump shaft, the precision can be ensured, the sealing force does not need to be adjusted, and the mechanical seal cover is very convenient to assemble and maintain.
When the second rotating ring seat 13 rotates along with the pump shaft, the blades 31 convey cooling water to form pressure to convey the cooling water to the cooling water outlet 12, so that the cooling water circulates to provide power for the circulation of the cooling water, the cooling water continuously circulates to bring heat produced by friction of the static ring and the rotating ring into the cooling water bucket 23 through the cooling water outlet 12, the heat is exchanged with air after entering the cooling water bucket 23, and the cooling water enters the mechanical seal through the cooling water inlet 7 because the cooling water inlet on one side of the water baffle plate 25 is a low-pressure area, so that self-cooling circulation without additional power parts is realized.
Claims (10)
1. The utility model provides a collection dress formula is from cooling cycle mechanical seal, includes quick-witted lid (3), has seted up cooling water inlet (7), cooling water outlet (12) on quick-witted lid (3), characterized by: a first stationary ring (1) is arranged on one side of the machine sealing cover (3), a second stationary ring seat (19) is arranged on the other side of the machine sealing cover (3), an elastic limiting component is arranged in the machine sealing cover (3), a first movable ring (6) is arranged on the inner side of the first stationary ring (1), a first movable ring seat (9) is clamped on the first movable ring (6), a second stationary ring (17) is arranged on the inner side of the second stationary ring seat (19), a second movable ring (14) is arranged on the inner side of the second stationary ring (17), a second movable ring seat (13) is clamped on the second movable ring (14), the elastic limiting component is used for limiting the first movable ring seat (9) and the second movable ring seat (13), and a cooling channel is formed among the cooling water inlet (7), the first moving ring seat (9), the second moving ring seat (13) and the cooling water outlet (12), and a power mechanism for cooling circulation is arranged on the second moving ring seat (13).
2. A self-cooling mechanical seal of claim 1, wherein: be equipped with between inboard cooling water inlet (7) of machine cover (3) and cooling water outlet (12) water-stop sheet (25), machine cover (3) inboard that water-stop sheet (25) one side is close to cooling water outlet (12) department is equipped with annular flow channel (26), and second rotating ring seat (13) side end face is located between annular flow channel (26), and is equipped with a plurality of blades (31) on the side end face of second rotating ring seat (13), power unit is blade (31).
3. A self-cooling mechanical seal of claim 2, wherein: the elastic limiting assembly comprises a spring seat (22), the second moving ring (14) is installed on the spring seat (22), the outer circle of the second moving ring (14) is clamped with one side of the second moving ring seat (13), a clamping boss (32) is arranged in the middle of the second moving ring seat (13), the other side of the second moving ring seat (13) is installed in a matched mode with the spring seat (22), and a spring (10) used for clamping the first moving ring seat (9) and the second moving ring seat (13) is installed on the spring seat (22).
4. A self-cooling mechanical seal of claim 3, wherein: one side of the first stationary ring (1) is provided with an anti-loosening O-shaped ring (5), and an anti-loosening inclined surface (24) is arranged on the machine sealing cover (3) at the position matched with the anti-loosening O-shaped ring (5).
5. A self-cooling mechanical seal of claim 4, wherein: the end part of the second static ring seat (19) extending out of the spring seat (22) is also provided with a locking assembly for locking the spring seat (22).
6. A self-cooling mechanical seal of claim 5, wherein: an anti-rotation mechanism is arranged between the spring seat (22) and the second rotating ring seat (13); the anti-rotation mechanism comprises anti-rotation grooves (28) uniformly distributed on the spring seat (22), and anti-rotation blocks (30) matched with the anti-rotation grooves (28) are arranged on the second rotating ring seat (13); and a spring seat O-shaped ring (11) is arranged between the spring seat (22) and the pump shaft.
7. A self-cooling mechanical seal of claim 6, wherein: the locking assembly comprises a locking ring (20) arranged at the end part of a spring seat (22), and a locking bolt (21) is arranged on the locking ring (20); the end part of the spring seat (22) is also provided with a locking groove (27).
8. A self-cooling mechanical seal of container type as claimed in claim 5 or 7, wherein: a static ring O-shaped ring (2) is arranged between one side of the first static ring (1) close to the pump cover and the mechanical sealing cover (3), and an mechanical sealing cover O-shaped ring (4) is arranged between the other side of the first static ring (1) and the mechanical sealing cover (3); a first moving ring O-shaped ring (8) is arranged between the first moving ring (6) and the pump shaft; a second moving ring O-shaped ring (15) is arranged between the spring seat (22) and the second moving ring (14); and a second static ring O-shaped ring (16) is arranged between the second static ring seat (19) and the machine sealing cover (3).
9. A self-cooling mechanical seal of claim 8, wherein: and a second stationary ring L-shaped sealing gasket (18) is arranged between the second stationary ring (17) and the second stationary ring seat (19).
10. A self-cooling mechanical seal of claim 8, wherein: a plurality of spring holes (29) are uniformly distributed on the spring seat (22), and the spring holes (29) are used for mounting the spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174619.6U CN215980082U (en) | 2021-05-28 | 2021-05-28 | Integrated self-cooling circulating mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174619.6U CN215980082U (en) | 2021-05-28 | 2021-05-28 | Integrated self-cooling circulating mechanical seal |
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| Publication Number | Publication Date |
|---|---|
| CN215980082U true CN215980082U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121174619.6U Active CN215980082U (en) | 2021-05-28 | 2021-05-28 | Integrated self-cooling circulating mechanical seal |
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| CN (1) | CN215980082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187759A (en) * | 2021-05-28 | 2021-07-30 | 鸿浩泵业有限公司 | Integrated self-cooling circulating mechanical seal |
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2021
- 2021-05-28 CN CN202121174619.6U patent/CN215980082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187759A (en) * | 2021-05-28 | 2021-07-30 | 鸿浩泵业有限公司 | Integrated self-cooling circulating mechanical seal |
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