CN213419447U - Multi-wing impeller fan auxiliary cooling mechanism for mechanical seal of centrifugal pump - Google Patents
Multi-wing impeller fan auxiliary cooling mechanism for mechanical seal of centrifugal pump Download PDFInfo
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- CN213419447U CN213419447U CN202021732403.2U CN202021732403U CN213419447U CN 213419447 U CN213419447 U CN 213419447U CN 202021732403 U CN202021732403 U CN 202021732403U CN 213419447 U CN213419447 U CN 213419447U
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- heat dissipation
- end plate
- impeller fan
- wing impeller
- mechanical seal
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Abstract
The utility model discloses a centrifugal pump mechanical seal's many wings impeller fan auxiliary cooling mechanism. The cooling mechanism comprises a multi-wing impeller fan, a heat dissipation fan cover and a heat dissipation pressing plate, wherein the multi-wing impeller fan is used for being fixed on the outer side of a movable ring seat so as to rotate together with a pump shaft and generate cooling air quantity, the heat dissipation fan cover is fixed on the heat dissipation pressing plate and is arranged on the outer side of the multi-wing impeller fan at intervals, the heat dissipation pressing plate is used for being connected with a fixed ring seat through bolts, a plurality of heat dissipation grooves are formed in one side of the heat dissipation pressing plate facing the multi-wing impeller fan, and two ends of each heat dissipation groove are respectively arranged. The utility model discloses a but the same rotation of multi-wing impeller fan follow-up ring seat, and then produce the amount of wind and cool down to hot pressing plate and rotating ring, make sealed temperature keep at lower within range, effectively improve mechanical seal's life.
Description
Technical Field
The utility model belongs to the technical field of mechanical seal, concretely relates to centrifugal pump mechanical seal's multiple wing impeller fan auxiliary cooling mechanism.
Background
The mechanical seal for the pump is an important part for ensuring that liquid in a pump cavity does not leak to the outside when the pump runs, the centrifugal pump comprises a main shaft, a bearing box, a bearing end cover, a seal, a pump shell impeller and the like, the mechanical seal mainly plays a role in preventing the liquid to be conveyed from leaking, the seal form of the centrifugal pump mainly comprises mechanical seal, oil seal dynamic seal and packing seal, wherein the service life of the mechanical seal is longest, and the mechanical seal can also adapt to various complicated and severe working conditions. In order to prolong the service life of the mechanical seal to the maximum extent, the general mechanical seal needs to be added with external seal water for flushing and sealing, so as to ensure the seal to operate under ideal conditions and ensure the service life, but with the increasing environmental protection pressure in recent years, more and more users limit or reduce the use of the seal flushing water, and the development and application of the mechanical seal without adding external cooling water are particularly important. When the mechanical seal is applied to the plastic centrifugal pump without adding external seal washing water, heat can be generated when the sealing dynamic and static rings operate at high speed, if the temperature of the sealing part can not be effectively controlled, once the temperature exceeds the limit temperature which can be borne by the plastic parts of the engineering plastic centrifugal pump, the sealing can be caused to lose efficacy, and the whole pump is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrifugal pump mechanical seal's many wings impeller fan auxiliary cooling mechanism to the not enough of prior art existence, drives the air through many wings fan and flows, for the mechanical seal cooling.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a centrifugal pump mechanical seal's multiple-wing impeller fan auxiliary cooling mechanism, includes multiple-wing impeller fan, heat dissipation fan housing and heat dissipation clamp plate, multiple-wing impeller fan is used for fixing in the rotating ring seat outside to together rotate and produce the cooling amount of wind along with the pump shaft, the heat dissipation fan housing is fixed on heat dissipation clamp plate, and its interval sets up the outside at multiple-wing impeller fan, heat dissipation clamp plate is used for with quiet ring seat bolted connection, and its one side towards multiple-wing impeller fan is equipped with a plurality of radiating grooves, the both ends of radiating groove set up the inside and outside both sides at cooling fan housing respectively.
Further, the multi-wing impeller fan comprises a first end plate and a second end plate which are arranged at intervals, the first end plate is close to the heat dissipation pressing plate, a plurality of blades are fixed between the first end plate and the second end plate, a plurality of fixing plates are fixed on the inner side of the first end plate, and the fixing plates are connected to the outer side of the movable ring seat through bolts.
Further, the both ends of blade are equipped with the installation foot respectively, first end plate and second end plate are equipped with the mounting hole with the installation foot corresponds the position, the installation foot passes the setting of buckling behind the mounting hole.
Furthermore, the first end plate extends through the fixed plate and is arranged on the outer side of the moving ring, a gap is formed between the first end plate and the moving ring, a gap is formed between the outer side of the moving ring and the outer side of the moving ring seat, the moving ring seat is provided with heat dissipation holes, and the heat dissipation holes are communicated with the gap between the outer side of the moving ring and the outer side of the moving ring seat.
Furthermore, the inner diameter of the second end plate is larger than that of the first end plate, a plurality of support legs are arranged on the inner side of the second end plate, and the inner ends of the support legs are connected with the outer side of the movable ring seat.
Furthermore, the heat dissipation grooves are arranged in a scattering mode from the center of the heat dissipation pressing plate to the outside.
Further, the fixed plates include 4 fixed plates, and the fixed plates are arranged at 90 degrees intervals.
Further, a mounting groove is formed in the heat dissipation pressing plate, the heat dissipation pressing plate is connected with a plurality of pressing plates through bolts, and the cooling fan cover is pressed in the mounting groove through the pressing plates.
Has the advantages that: compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a but the same rotation of multi-wing impeller fan follow-up ring seat, and then produce the amount of wind and cool down to hot pressing plate and rotating ring, make sealed temperature keep at lower within range, effectively improve mechanical seal's life.
Drawings
FIG. 1 is an exploded view of a multiple-wing impeller fan assisted cooling mechanism;
FIG. 2 is a schematic cross-sectional view of a multi-blade impeller fan auxiliary cooling mechanism;
FIG. 3 is a schematic view of a portion of the enlarged structure of FIG. 2;
FIG. 4 is a schematic view of an assembled structure of the auxiliary cooling mechanism of the multi-blade impeller fan;
FIG. 5 is a cross-sectional structural schematic of a mechanical seal with multiple-bladed impeller fan assisted cooling.
Detailed Description
The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the mechanical seal with auxiliary cooling of a multi-blade impeller fan of the present application includes a shaft sleeve 18 and a seal mounting seat 19 disposed on one side of the shaft sleeve 18, a stationary ring seat 11, a stationary ring 8 and a moving ring 7 are disposed on the outer side of the shaft sleeve 18, a moving ring seat 4 is disposed on the outer side of the seal mounting seat 19, a moving ring gasket 20 and a plurality of springs 21 are disposed between the moving ring 7 and the moving ring seat 4, it should be noted that the mechanical seal further includes other components which are not related to improvement, such as a seal adjusting nut 22, a round nut 23, an acid blocking ring 24 and a plurality of seal rings disposed between the seal mounting seat 19 and the round nut 23, and the details are not repeated. One side of the static ring seat 11 close to the movable ring seat 4 is connected with a radiating pressure plate 1 through bolts, and the outer side of the radiating pressure plate 1 is provided with a multi-wing impeller fan auxiliary cooling mechanism.
The utility model discloses many wings impeller fan auxiliary cooling mechanism is fixed with many wings impeller fan 3 including fixing in the outside of rotating ring seat 4, and the interval is formed with air intake 6 between the outside of rotating ring seat 4 and many wings impeller fan 3. A plurality of radiating grooves 9 are arranged on one side of the radiating pressure plate 1 facing the multi-wing impeller fan 3, and the radiating grooves 9 are preferably arranged in a manner of scattering outwards from the center of the radiating pressure plate 1. A cooling fan housing 2 is fixed on one side of the heat dissipation pressure plate 1 facing the multi-wing impeller fan 3, the cooling fan housing 2 is arranged on the outer side of the multi-wing impeller fan 3 at intervals, and two ends of the heat dissipation groove 9 are respectively arranged on the inner side and the outer side of the cooling fan housing 2. When the multi-wing impeller fan works, the multi-wing impeller fan 3 rotates along with the main shaft of the pump and generates air quantity, and a part of the air quantity is guided to the heat dissipation groove 9 of the heat dissipation pressing plate 1 through the cooling fan cover 2 and then discharged to take away heat.
The utility model discloses multi-wing impeller fan 3 includes first end plate 31 and the second end plate 32 that the interval set up, and wherein, first end plate 31 is close to the setting of heat radiation pressing plate 1, and heat radiation pressing plate 1 setting is kept away from to second end plate 32, is fixed with a plurality of blades 33 between first end plate 31 and second end plate 32, is fixed with a plurality of fixed plates 34 in first end plate 31 inboard, and fixed plate 34 bolted connection is in the moving ring seat 4 outsides. The number of the fixing plates 34 is preferably 4, and the 4 fixing plates 34 are disposed at 90 ° from each other.
In order to fix blade 33 between first end plate 31 and second end plate 32 for the convenience, be equipped with installation foot 35 respectively at the both ends of blade 33, first end plate 31 and second end plate 32 are equipped with the mounting hole respectively with installation foot 35 corresponding position, installation foot 35 passes the setting of bending behind the mounting hole, installation foot 35 is preferred to be the slice, the overall dimension adaptation of mounting hole and installation foot 35 can fix blade 33 between first end plate 31 and second end plate 32 after buckling.
In order to further improve the heat dissipation effect, the first end plate 31 is extended and arranged outside the moving ring 7 through the fixing plate 34, a gap is arranged between the first end plate 31 and the moving ring 7, a gap is also arranged between the outside of the moving ring 7 and the outside of the moving ring seat 4, the moving ring seat 4 is provided with heat dissipation holes 10, and the heat dissipation holes 10 are communicated with the gap between the outside of the moving ring 7 and the outside of the moving ring seat 4. Furthermore, the air volume generated by the multi-blade impeller fan 3 when rotating along with the pump shaft can be discharged from the heat dissipation holes 10 through the gap between the movable ring 7 and the movable ring seat 4.
For the ease of air admission multi-wing impeller fan 3 in the outside, the utility model discloses the internal diameter of second end plate 32 is greater than the internal diameter of first end plate 31, and then can form great air intake 6 between the outside of second end plate 32 inboard and rotating ring seat 4, in order to ensure multi-wing impeller fan 3's stability, the inboard of second end plate 32 is equipped with a plurality of stabilizer blades 36, and the inner of stabilizer blade 36 is connected with the outside of rotating ring seat 4, plays the supporting role.
In order to fix the cooling fan housing 2 on the heat dissipation pressure plate 1, a mounting groove 37 is formed in the heat dissipation pressure plate 1, a plurality of pressure plates 38 are bolted to the heat dissipation pressure plate 1, and the cooling fan housing 2 is pressed in the mounting groove 37 by the plurality of pressure plates.
In order to further increase the heat dissipation effect, a heat conducting medium 12 is provided between the stationary ring 8 and the heat dissipating pressure plate 1. The heat conductive medium 12 includes a heat conductive paste or a heat conductive silicone paste.
In order to further improve the heat dissipation effect, a static ring seat lining plastic 5 is arranged on one side, away from the heat dissipation pressure plate 1, of the static ring seat 11, a water storage ring 14 is arranged between the static ring seat lining plastic 5 and the shaft sleeve 18, the water storage ring 14 is installed between the static ring seat lining plastic 5 and the shaft sleeve 18 through a water storage ring pressing ring 15, and the water storage ring pressing ring 15 is in threaded connection with the static ring seat lining plastic 5. A closed space 16 is formed among the water storage ring 14, the static ring seat lining plastic 5 and the static ring 8. The structural shape of the water storage ring 14 is equivalent to a one-way valve, medium conveyed by the centrifugal pump can be poured into the space 16 under the action of pressure and stored in the space 16, when the centrifugal pump is started to empty, liquid stored in the space 16 can maintain the mechanical seal to continue to run for a period of time without being damaged under the condition that the vehicle is started to empty, and the actual measurement time of the vehicle started to empty can reach more than half an hour.
In order to prevent a large amount of particles from entering a mirror surface part of the relative friction between the static ring 8 and the dynamic ring 7 of the mechanical seal, an auxiliary impeller 13 is arranged at one end of the shaft sleeve 18 far away from the seal mounting seat 19 at intervals. When the auxiliary impeller 13 rotates, solid particles with large specific gravity can be thrown away, and the service life of the mechanical seal can be effectively prolonged.
As shown in fig. 4 and 5, based on the above embodiments, those skilled in the art can understand that the utility model also provides a centrifugal pump mechanical seal's multiple-wing impeller fan auxiliary cooling mechanism, including multiple-wing impeller fan 3, cooling fan housing 2 and heat-dissipating pressure plate 1, multiple-wing impeller fan 3 is used for fixing in the outside of rotating ring seat 4, in order to rotate and produce the cooling air volume along with the pump shaft together, cooling fan housing 2 is fixed on heat-dissipating pressure plate 1, cooling fan housing 2 sets up the outside at multiple-wing impeller fan 3 at the interval, heat-dissipating pressure plate 1 is used for with stationary ring seat 11 bolted connection, and its one side towards multiple-wing impeller fan 3 is equipped with a plurality of radiating grooves 9, the both ends of radiating grooves 9 set up the inside and outside both sides at cooling fan housing 2 respectively. When the multi-wing impeller fan works, the multi-wing impeller fan 3 rotates along with the main shaft of the pump and generates air quantity, and a part of the air quantity is guided to the heat dissipation groove 9 of the heat dissipation pressing plate 1 through the cooling fan cover 2 and then discharged to take away heat.
The utility model discloses multi-wing impeller fan 3 includes first end plate 31 and the second end plate 32 that the interval set up, and wherein, first end plate 31 is close to the setting of heat radiation pressing plate 1, and heat radiation pressing plate 1 setting is kept away from to second end plate 32, is fixed with a plurality of blades 33 between first end plate 31 and second end plate 32, is fixed with a plurality of fixed plates 34 in first end plate 31 inboard, and fixed plate 34 bolted connection is in the moving ring seat 4 outsides. The number of the fixing plates 34 is preferably 4, and the 4 fixing plates 34 are disposed at 90 ° from each other.
In order to fix blade 33 between first end plate 31 and second end plate 32 for the convenience, be equipped with installation foot 35 respectively at the both ends of blade 33, first end plate 31 and second end plate 32 are equipped with the mounting hole respectively with installation foot 35 corresponding position, installation foot 35 passes the setting of bending behind the mounting hole, installation foot 35 is preferred to be the slice, the overall dimension adaptation of mounting hole and installation foot 35 can fix blade 33 between first end plate 31 and second end plate 32 after buckling.
In order to further improve the heat dissipation effect, the first end plate 31 is extended and arranged outside the moving ring 7 through the fixing plate 34, a gap is arranged between the first end plate 31 and the moving ring 7, a gap is also arranged between the outside of the moving ring 7 and the outside of the moving ring seat 4, the moving ring seat 4 is provided with heat dissipation holes 10, and the heat dissipation holes 10 are communicated with the gap between the outside of the moving ring 7 and the outside of the moving ring seat 4. Furthermore, the air volume generated by the multi-blade impeller fan 3 when rotating along with the pump shaft can be discharged from the heat dissipation holes 10 through the gap between the movable ring 7 and the movable ring seat 4.
For the ease of air admission multi-wing impeller fan 3 in the outside, the utility model discloses the internal diameter of second end plate 32 is greater than the internal diameter of first end plate 31, and then can form great air intake 6 between the outside of second end plate 32 inboard and rotating ring seat 4, in order to ensure multi-wing impeller fan 3's stability, the inboard of second end plate 32 is equipped with a plurality of stabilizer blades 36, and the inner of stabilizer blade 36 is connected with the outside of rotating ring seat 4, plays the supporting role.
In order to fix the cooling fan housing 2 on the heat dissipation pressure plate 1, a mounting groove 37 is formed in the heat dissipation pressure plate 1, a plurality of pressure plates 38 are bolted to the heat dissipation pressure plate 1, and the cooling fan housing 2 is pressed in the mounting groove 37 by the plurality of pressure plates.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a centrifugal pump mechanical seal's multiple-wing impeller fan auxiliary cooling mechanism which characterized in that: the multi-wing impeller fan is used for being fixed on the outer side of a movable ring seat to rotate together with a pump shaft and generate cooling air quantity, the heat dissipation fan cover is fixed on the heat dissipation pressure plate, the heat dissipation fan cover is arranged on the outer side of the multi-wing impeller fan at intervals, the heat dissipation pressure plate is used for being connected with a fixed ring seat through bolts, a plurality of heat dissipation grooves are formed in one side, facing the multi-wing impeller fan, of the heat dissipation pressure plate, and two ends of each heat dissipation groove are arranged on the inner side and the outer side of the cooling fan cover respectively.
2. The multi-wing impeller fan-assisted cooling mechanism for a centrifugal pump mechanical seal of claim 1, wherein: the multi-wing impeller fan comprises a first end plate and a second end plate which are arranged at intervals, the first end plate is close to the heat dissipation pressing plate, a plurality of blades are fixed between the first end plate and the second end plate, a plurality of fixing plates are fixed on the inner side of the first end plate, and the fixing plates are connected to the outer side of the movable ring seat through bolts.
3. The multi-wing impeller fan-assisted cooling mechanism for a centrifugal pump mechanical seal of claim 2, wherein: the two ends of the blade are respectively provided with a mounting foot, mounting holes are formed in the positions, corresponding to the mounting feet, of the first end plate and the second end plate, and the mounting feet are arranged in a bending mode after penetrating through the mounting holes.
4. The multi-wing impeller fan-assisted cooling mechanism for a centrifugal pump mechanical seal of claim 2, wherein: the first end plate is arranged on the outer side of the moving ring in an extending mode through the fixing plate, a gap is formed between the first end plate and the moving ring, a gap is formed between the outer side of the moving ring and the outer side of the moving ring seat, heat dissipation holes are formed in the moving ring seat, and the heat dissipation holes are communicated with the gap between the outer side of the moving ring and the outer side of the moving ring seat.
5. The multi-wing impeller fan-assisted cooling mechanism for a centrifugal pump mechanical seal of claim 2, wherein: the inner diameter of the second end plate is larger than that of the first end plate, a plurality of support legs are arranged on the inner side of the second end plate, and the inner ends of the support legs are connected with the outer side of the movable ring seat.
6. The multi-wing impeller fan-assisted cooling mechanism for a centrifugal pump mechanical seal of claim 1, wherein: the heat dissipation grooves are arranged in a scattering mode from the center of the heat dissipation pressing plate to the outside.
7. The multi-wing impeller fan-assisted cooling mechanism for a centrifugal pump mechanical seal of claim 2, wherein: the fixed plate comprises 4 fixed plates which are arranged at an interval of 90 degrees.
8. The multi-wing impeller fan-assisted cooling mechanism for a centrifugal pump mechanical seal of claim 1, wherein: the cooling fan cover is characterized in that a mounting groove is formed in the cooling pressing plate, the cooling pressing plate is connected with a plurality of pressing plates through bolts, and the cooling fan cover is pressed in the mounting groove through the pressing plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021732403.2U CN213419447U (en) | 2020-08-18 | 2020-08-18 | Multi-wing impeller fan auxiliary cooling mechanism for mechanical seal of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021732403.2U CN213419447U (en) | 2020-08-18 | 2020-08-18 | Multi-wing impeller fan auxiliary cooling mechanism for mechanical seal of centrifugal pump |
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| Publication Number | Publication Date |
|---|---|
| CN213419447U true CN213419447U (en) | 2021-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021732403.2U Active CN213419447U (en) | 2020-08-18 | 2020-08-18 | Multi-wing impeller fan auxiliary cooling mechanism for mechanical seal of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213419447U (en) |
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2020
- 2020-08-18 CN CN202021732403.2U patent/CN213419447U/en active Active
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