CN215763289U - Mechanical sealing device for compact externally-mounted sulfuric acid pump - Google Patents
Mechanical sealing device for compact externally-mounted sulfuric acid pump Download PDFInfo
- Publication number
- CN215763289U CN215763289U CN202122349009.1U CN202122349009U CN215763289U CN 215763289 U CN215763289 U CN 215763289U CN 202122349009 U CN202122349009 U CN 202122349009U CN 215763289 U CN215763289 U CN 215763289U
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- spring seat
- sulfuric acid
- ring
- acid pump
- pump shaft
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Abstract
The utility model belongs to the technical field of mechanical sealing, and particularly provides a mechanical sealing device for a compact externally-mounted sulfuric acid pump, which is used for sealing a sulfuric acid pump shaft and preventing a medium from flowing out of the sulfuric acid pump shaft; in addition, a sealing ring A is arranged between the spring seat and the pump shaft at the position where the bush is not arranged for sealing and is used for radially sealing the spring seat and the sulfuric acid pump shaft; the end face, close to the medium side, of the spring seat is provided with annularly distributed grooves, and the bottoms of the grooves are provided with a plurality of through holes; the movable ring is arranged in the groove of the spring seat, and a spring is arranged in the through hole; the end of the spring props against the movable ring; one part of the inner side of the moving ring is sleeved on the periphery of the spring seat, the other part of the inner side of the moving ring is sleeved on the periphery of the sulfuric acid pump shaft, and a sealing ring B is arranged at the radial connection position of the moving ring and the spring seat; the outer side of the axial direction of the movable ring is connected with a static ring, and the static ring is fixed on the sealed cavity shell.
Description
Technical Field
The utility model belongs to the technical field of mechanical sealing, and particularly provides a compact mechanical sealing device for an externally-mounted sulfuric acid pump.
Background
Because the sulfuric acid pump is designed to be very compact, the installation space of the mechanical seal is very narrow, and the mechanical seal cannot be designed into the traditional sealing type. How to design a mechanical sealing device with simple structure and small occupied space is a technical problem to be solved urgently in the industry.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present solution provides a mechanical seal that employs an exterior, exterior flow type structure; the utility model provides a compact mechanical sealing device for an externally-mounted sulfuric acid pump, which is used for sealing a sulfuric acid pump shaft 1 and preventing a medium 3 from flowing out of the sulfuric acid pump shaft 1 and comprises a spring seat 2, wherein the spring seat 2 is arranged on the periphery of the sulfuric acid pump shaft 1 positioned on the atmospheric side, a bush 4 is arranged between the spring seat 2 and the periphery of one end of the sulfuric acid pump shaft 1, and the spring seat 2 is fixed on the sulfuric acid pump shaft 1 by mounting a hexagon screw 5 on the spring seat 2; in addition, a sealing ring A6 is arranged between the spring seat 2 and the pump shaft 1 at the position where the bush 4 is not arranged for sealing and is used for radially sealing the spring seat 2 and the sulfuric acid pump shaft 1; the end face, close to the medium side, of the spring seat 2 is provided with a groove 7 which is distributed annularly, the bottom of the groove 7 is provided with a plurality of through holes 8, the bottom of each through hole 8 is designed as a stepped hole, and the diameter of the bottom of each through hole 8 is smaller than that of other parts; the movable ring 9 is arranged in the groove 7 of the spring seat 2, and the spring 10 is arranged in the through hole 8; the head end of the spring (10) props against the movable ring 9; a part of the inner side of the movable ring 9 is sleeved on the periphery of the spring seat 2, a part of the inner side of the movable ring 9 is sleeved on the periphery of the sulfuric acid pump shaft 1, and a sealing ring B11 is arranged at the radial connection position of the movable ring 9 and the spring seat 2; the axial outer side of the dynamic ring 9 is connected with a static ring 12, and the static ring 12 is fixed on a sealed cavity shell 13.
Further, the section of the stationary ring 12 is convex, the side close to the atmosphere and the side close to the medium are both designed into steps, and a circle of baffle plates 14 are arranged on the steps close to the atmosphere and fixed on the sealed cavity shell 13 through screws; a sealing gasket A15 is axially arranged at the joint of the baffle plate 14 and the static ring 12; the contact surface of the sealed cavity shell 13 and the static ring 12 is matched in a step-shaped design, and a sealing gasket B16 is axially arranged at the contact part of the static ring 12 and the sealed cavity shell 13.
The utility model has the advantages that: simple structure, it is sealed effectual, be suitable for in the sulphuric acid pump than the sealed of the axle in the narrow and small space, can effectively prevent the medium outflow.
Drawings
FIG. 1 is a schematic structural view of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, the utility model provides a compact mechanical sealing device for an externally-mounted sulfuric acid pump, which is used for sealing a sulfuric acid pump shaft 1 and preventing a medium 3 from flowing out of the sulfuric acid pump shaft 1, and comprises a spring seat 2, wherein the spring seat 2 is arranged on the periphery of the sulfuric acid pump shaft 1 positioned on the atmospheric side, a bush 4 is arranged between the spring seat 2 and the periphery of one end of the sulfuric acid pump shaft 1, and the spring seat 2 is fixed on the sulfuric acid pump shaft 1 through a hexagon screw 5 arranged on the spring seat 2; in addition, a sealing ring A6 is arranged between the spring seat 2 and the pump shaft 1 at the position where the bush 4 is not arranged for sealing and is used for radially sealing the spring seat 2 and the sulfuric acid pump shaft 1; the end face, close to the medium side, of the spring seat 2 is provided with a groove 7 which is distributed annularly, the bottom of the groove 7 is provided with a plurality of through holes 8, the bottom of each through hole 8 is designed as a stepped hole, and the diameter of the bottom of each through hole 8 is smaller than that of other parts; the movable ring 9 is arranged in the groove 7 of the spring seat 2, and the spring 10 is arranged in the through hole 8; the head end of the spring (10) props against the movable ring 9; a part of the inner side of the movable ring 9 is sleeved on the periphery of the spring seat 2, a part of the inner side of the movable ring 9 is sleeved on the periphery of the sulfuric acid pump shaft 1, and a sealing ring B11 is arranged at the radial connection position of the movable ring 9 and the spring seat 2; the axial outer side of the dynamic ring 9 is connected with a static ring 12, and the static ring 12 is fixed on a sealed cavity shell 13.
Further, the section of the stationary ring 12 is convex, the side close to the atmosphere and the side close to the medium are both designed into steps, and a circle of baffle plates 14 are arranged on the steps close to the atmosphere and fixed on the sealed cavity shell 13 through screws; a sealing gasket A15 is axially arranged at the joint of the baffle plate 14 and the static ring 12; the contact surface of the sealed cavity shell 13 and the static ring 12 is matched in a step-shaped design, and a sealing gasket B16 is axially arranged at the contact part of the static ring 12 and the sealed cavity shell 13.
The structure of the scheme is less as seen from the figure, but the shaft can be well sealed, and the medium on the shaft is prevented from flowing outwards.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. The compact mechanical sealing device for the externally-mounted sulfuric acid pump seals a sulfuric acid pump shaft (1) and prevents a medium (3) from flowing outwards from the sulfuric acid pump shaft (1), and is characterized in that: the device comprises a spring seat (2), wherein the spring seat (2) is arranged on the periphery of a sulfuric acid pump shaft (1) positioned on the atmosphere side, a bushing (4) is arranged between the spring seat (2) and the periphery of one end of the sulfuric acid pump shaft (1), and the spring seat (2) is fixed on the sulfuric acid pump shaft (1) by mounting a hexagon screw (5) on the spring seat (2); in addition, a sealing ring A (6) is arranged between the spring seat (2) and the pump shaft (1) at the position where the bush (4) is not arranged for sealing and is used for radially sealing the spring seat (2) and the sulfuric acid pump shaft (1); the end face, close to the medium side, of the spring seat (2) is provided with a groove (7) which is distributed annularly, the bottom of the groove (7) is provided with a plurality of through holes (8), the bottom of each through hole (8) is designed as a stepped hole, and the diameter of the bottom of each through hole (8) is smaller than that of other parts; the movable ring (9) is arranged in the groove (7) of the spring seat (2), and the spring (10) is arranged in the through hole (8); the head end of the spring (10) props against the movable ring (9); one part of the inner side of the moving ring (9) is sleeved on the periphery of the spring seat (2), the other part of the inner side of the moving ring is sleeved on the periphery of the sulfuric acid pump shaft (1), and a sealing ring B (11) is arranged at the radial connection position of the moving ring (9) and the spring seat (2); the axial outer side of the dynamic ring (9) is connected with a static ring (12), and the static ring (12) is fixed on the sealed cavity shell (13).
2. The mechanical seal device for a compact externally mounted sulfuric acid pump according to claim 1, characterized in that: the section of the static ring (12) is convex, the side close to the atmosphere and the medium side are both designed into steps, and a circle of baffle plates (14) are arranged on the steps close to the atmosphere and fixed on the sealed cavity shell (13) through screws; a sealing gasket A (15) is axially arranged at the joint of the baffle (14) and the static ring (12); the contact surface of the sealed cavity shell (13) and the static ring (12) is matched into a step-shaped design, and a sealing gasket B (16) is axially arranged at the contact part of the static ring (12) and the sealed cavity shell (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122349009.1U CN215763289U (en) | 2021-09-27 | 2021-09-27 | Mechanical sealing device for compact externally-mounted sulfuric acid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122349009.1U CN215763289U (en) | 2021-09-27 | 2021-09-27 | Mechanical sealing device for compact externally-mounted sulfuric acid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215763289U true CN215763289U (en) | 2022-02-08 |
Family
ID=80091449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122349009.1U Active CN215763289U (en) | 2021-09-27 | 2021-09-27 | Mechanical sealing device for compact externally-mounted sulfuric acid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215763289U (en) |
-
2021
- 2021-09-27 CN CN202122349009.1U patent/CN215763289U/en active Active
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