CN210920122U - Automatic switching double-pump mechanical seal assembly - Google Patents
Automatic switching double-pump mechanical seal assembly Download PDFInfo
- Publication number
- CN210920122U CN210920122U CN201921805382.XU CN201921805382U CN210920122U CN 210920122 U CN210920122 U CN 210920122U CN 201921805382 U CN201921805382 U CN 201921805382U CN 210920122 U CN210920122 U CN 210920122U
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- Prior art keywords
- ring
- shaft sleeve
- sealing
- mechanical seal
- spring
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 74
- 230000003068 static effect Effects 0.000 claims abstract description 24
- 230000009977 dual effect Effects 0.000 claims 5
- 238000000034 method Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides an automatic switch over double pump mechanical seal subassembly, include: the sealing box, the shaft sleeve and the spring seat; the sealing box is sleeved outside the rear side of the shaft sleeve, and the shaft sleeve penetrates through the sealing box; the sealing cover is sleeved outside the front side of the shaft sleeve, and a sealing cover gasket is arranged between the sealing cover and the sealing box; the spring seat, the spring and the push ring are sleeved on the shaft sleeve, and the spring seat, the spring and the push ring are positioned in the sealing box; the spring is positioned between the spring seat and the push ring; the movable ring is sleeved on the shaft sleeve, and a movable ring sealing ring is arranged between the movable ring and the shaft sleeve; the push ring is connected with the movable ring through a driving bolt; the static ring is sleeved on the shaft sleeve; the utility model discloses a to the improvement of automatic switch-over double pump mechanical seal subassembly, it is reasonable to have a structural design, adopts mechanical seal and spiral seal to combine, improves sealed effect, and the practicality is strong advantage to effectual solution the utility model provides a problem and not enough.
Description
Technical Field
The utility model relates to a pump mechanical seal technical field, more specifically the theory that says so especially relates to an automatic switch-over double pump mechanical seal subassembly.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.
The mechanical seal is a shaft seal device of a rotating machine. Such as centrifugal pumps, centrifuges, reaction kettles, compressors, and the like. The mechanical seal of the pump mainly comprises a movable ring, a static ring, a cooling device, a compression spring and a sealing ring, but the existing mechanical seal assembly can lose efficacy and leak liquid after being used for a period of time, and most of the main reasons of seal failure are caused by abrasion of friction pairs of the movable ring and the static ring, so that the service life of the mechanical seal is short, and the current situation of stable operation of the whole length period of production safety cannot be met.
In view of the above, the present invention provides an automatic switching dual-pump mechanical seal assembly, which is developed to solve the problems and improve the practical value.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic switch-over double pump mechanical seal subassembly to solve the main rotating ring of mechanical seal of the pump that proposes in the above-mentioned background art, quiet ring, cooling device, pressure spring and sealing washer are constituteed, but current mechanical seal subassembly can appear becoming invalid after using a period, phenomenons such as weeping, most sealed inefficacy main reason is that the rotating ring, the vice wearing and tearing of quiet ring friction cause, cause mechanical seal life weak point, can not satisfy the problem and the not enough of the current situation of the safe length cycle steady operation of production.
In order to achieve the above object, the utility model provides an automatic switch-over double pump mechanical seal subassembly is reached by following specific technological means: the sealing box is sleeved outside the rear side of the shaft sleeve, and the shaft sleeve penetrates through the sealing box; the sealing cover is sleeved outside the front side of the shaft sleeve, and a sealing cover gasket is arranged between the sealing cover and the sealing box; the spring seat, the spring and the push ring are sleeved on the shaft sleeve, and the spring seat, the spring and the push ring are positioned in the sealing box; the spring is positioned between the spring seat and the push ring; the movable ring is sleeved on the shaft sleeve, and a movable ring sealing ring is arranged between the movable ring and the shaft sleeve; the push ring is connected with the movable ring through a driving bolt; the static ring is sleeved on the shaft sleeve and is positioned in the sealing cover; a static ring sealing ring is arranged between the static ring and the sealing cover; the movable ring is abutted with the static ring.
As a further optimization of the technical scheme, the inner wall of the sealing box is provided with threads.
As the further optimization of this technical scheme, seted up the screw thread on the outer wall of axle sleeve, and the screw thread section is located the inside of seal box to the screw thread is revolved to the opposite with the seal box internal thread.
As the further optimization of this technical scheme, the spring holder sets up to slider on the axle sleeve through the mode of emboliaing, and the spring holder is located the one side of axle sleeve upper thread section.
As a further optimization of the technical scheme, the static ring is fixed on the sealing cover through an anti-rotation pin.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic structural diagram of a position a of the present invention.
In the figure: the sealing device comprises a sealing box 1, a shaft sleeve 2, a spring seat 3, a spring 4, a push ring 5, a moving ring 6, a moving ring sealing ring 7, a static ring 8, a static ring sealing ring 9, a sealing cover 10 and a sealing cover gasket 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1 to 2, the present invention provides a specific technical implementation of an automatic switching dual-pump mechanical seal assembly: the sealing device comprises a sealing box 1, a shaft sleeve 2, a spring seat 3, a spring 4, a push ring 5, a moving ring 6, a moving ring sealing ring 7, a static ring 8, a static ring sealing ring 9, a sealing cover 10 and a sealing cover gasket 11.
The sealing box 1 is sleeved outside the rear side of the shaft sleeve 2, and the shaft sleeve 2 penetrates through the sealing box 1; the sealing cover 10 is sleeved outside the front side of the shaft sleeve 2, and a sealing cover gasket 11 is arranged between the sealing cover 10 and the sealing box 1; the spring seat 3, the spring 4 and the push ring 5 are sleeved on the shaft sleeve 2, and the spring seat 3, the spring 4 and the push ring 5 are positioned in the sealing box 1; the spring 4 is positioned between the spring seat 3 and the push ring 5; the movable ring 6 is sleeved on the shaft sleeve 2, and a movable ring sealing ring 7 is arranged between the movable ring 6 and the shaft sleeve 2; the push ring 5 is connected with the movable ring 6 through a driving bolt; the static ring 8 is sleeved on the shaft sleeve 2, and the static ring 8 is positioned in the sealing cover 10; a static ring sealing ring 9 is arranged between the static ring 8 and the sealing cover 10; the moving ring 6 abuts against the stationary ring 8.
Specifically, the inner wall of the seal box 1 is provided with threads.
Specifically, the outer wall of the shaft sleeve 2 is provided with threads, the thread section is located inside the sealing box 1, and the screwing direction of the threads is opposite to that of the threads in the sealing box 1.
Specifically, spring holder 3 is installed through the mode of emboliaing and is set up to slider on axle sleeve 2, and spring holder 3 is located the one side of axle sleeve 2 top thread section.
Specifically, the stationary ring 8 is fixed to the seal cover by an anti-rotation pin.
The specific implementation steps of the automatic switching double-pump mechanical seal assembly are as follows: a plurality of flow passage spaces are formed between the threads on the shaft sleeve and the internal threads of the sealing box, and when a medium flows through the threads, a vortex direction is formed and is opposite to a leakage direction. As the momentum exchange result of the spiral flow on the shaft sleeve and the spiral flow medium in the sealing box, the shaft sleeve transfers energy to the medium. The interaction between the shaft sleeve and the sealing box and the medium results in strong turbulent flow of the medium and greatly improved friction resistance of the medium, so that the sealing effect is achieved.
To sum up: according to the automatic switching double-pump mechanical seal assembly, the inner wall of the seal box is provided with the threads, the outer wall of the shaft sleeve is provided with the threads, the thread section is positioned in the seal box, the thread turning direction is opposite to the thread turning direction in the seal box, the threads on the shaft sleeve and the threads in the seal box interact with a medium, so that the medium forms strong turbulence, the friction resistance of medium flowing is greatly improved, and the seal effect is further improved; through the improvement to automatic switch-over double pump mechanical seal subassembly, it is reasonable to have structural design, adopts mechanical seal and spiral seal to combine, improves sealed effect, and the practicality is strong advantage to effectual solution the utility model provides a problem and not enough.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An automatic switching dual pump mechanical seal assembly comprising: the sealing device comprises a sealing box (1), a shaft sleeve (2), a spring seat (3), a spring (4), a push ring (5), a movable ring (6), a movable ring sealing ring (7), a static ring (8), a static ring sealing ring (9), a sealing cover (10) and a sealing cover gasket (11); the method is characterized in that: the sealing box (1) is sleeved outside the rear side of the shaft sleeve (2), and the shaft sleeve (2) penetrates through the sealing box (1); the sealing cover (10) is sleeved outside the front side of the shaft sleeve (2), and a sealing cover gasket (11) is arranged between the sealing cover (10) and the sealing box (1); the spring seat (3), the spring (4) and the push ring (5) are sleeved on the shaft sleeve (2), and the spring seat (3), the spring (4) and the push ring (5) are positioned in the sealing box (1); the spring (4) is positioned between the spring seat (3) and the push ring (5); the movable ring (6) is sleeved on the shaft sleeve (2), and a movable ring sealing ring (7) is arranged between the movable ring (6) and the shaft sleeve (2); the push ring (5) is connected with the movable ring (6) through a driving bolt; the static ring (8) is sleeved on the shaft sleeve (2), and the static ring (8) is positioned in the sealing cover (10); a static ring sealing ring (9) is arranged between the static ring (8) and the sealing cover (10); the movable ring (6) is abutted against the static ring (8).
2. The automatic switching dual pump mechanical seal assembly of claim 1, wherein: the inner wall of the sealing box (1) is provided with threads.
3. An automatic switching dual pump mechanical seal assembly according to claim 1 or 2 wherein: the outer wall of the shaft sleeve (2) is provided with threads, the thread section is located inside the sealing box (1), and the screwing direction of the threads is opposite to that of the internal threads of the sealing box (1).
4. The automatic switching dual pump mechanical seal assembly of claim 1, wherein: the spring seat (3) is installed on the shaft sleeve (2) in a sleeved mode and is provided with a sliding device, and the spring seat (3) is located on one side of the upper thread section of the shaft sleeve (2).
5. The automatic switching dual pump mechanical seal assembly of claim 1, wherein: the static ring (8) is fixed on the sealing cover through an anti-rotation pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921805382.XU CN210920122U (en) | 2019-10-25 | 2019-10-25 | Automatic switching double-pump mechanical seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921805382.XU CN210920122U (en) | 2019-10-25 | 2019-10-25 | Automatic switching double-pump mechanical seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210920122U true CN210920122U (en) | 2020-07-03 |
Family
ID=71364430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921805382.XU Expired - Fee Related CN210920122U (en) | 2019-10-25 | 2019-10-25 | Automatic switching double-pump mechanical seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210920122U (en) |
-
2019
- 2019-10-25 CN CN201921805382.XU patent/CN210920122U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 |