CN219795643U - Mechanical sealing system for pump capable of resisting liquid shortage operation - Google Patents
Mechanical sealing system for pump capable of resisting liquid shortage operation Download PDFInfo
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- CN219795643U CN219795643U CN202320655667.XU CN202320655667U CN219795643U CN 219795643 U CN219795643 U CN 219795643U CN 202320655667 U CN202320655667 U CN 202320655667U CN 219795643 U CN219795643 U CN 219795643U
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- surface wall
- machine seal
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- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 title claims abstract description 23
- 230000003068 static effect Effects 0.000 claims abstract description 37
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 31
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 38
- 239000010687 lubricating oil Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000001050 lubricating effect Effects 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a mechanical sealing system for a pump capable of resisting liquid shortage operation, which comprises a pump shell, a water nozzle joint and a constant-position oil cup, wherein a pump shaft is penetrated in the pump shell, a shaft sleeve is fixedly arranged on the outer surface wall of the pump shaft, one end of the pump shaft is connected with an impeller, a pump cover is fixedly arranged on one side of the pump shell, a gland is fixedly arranged on one side, far away from the pump shell, of the pump cover, an organic sealing seat is screwed on the inner surface wall of the gland, and a static ring seat is fixedly arranged on the mechanical sealing seat through a spring pin. In the utility model, the front end face of the machine seal is sealed by adopting a friction pair, the inner side of the machine seal is contacted with a medium in the pump body, the outer side of the machine seal is contacted with heat conduction oil, the machine seal can not be damaged as long as one side of the machine seal is provided with liquid, the rear end of the machine seal is sealed by adopting a framework oil seal, the seal can not fail after long-time running under the condition of a certain lubricating oil, and the problem that the rear end face of the machine seal with the common double end faces fails immediately once water is lost is solved.
Description
Technical Field
The utility model relates to the technical field of mechanical sealing for pumps, in particular to a mechanical sealing system for a pump, which is resistant to liquid shortage operation.
Background
The prime mover drives the impeller of the pump to do work through the pump shaft, the pump shaft needs to be led into the pump shell from the outside of the pump shell, and in order to prevent liquid in the pump from leaking out, dynamic isolation sealing needs to be carried out between the rotating pump shaft and the static pump shell. A mechanical seal is a mechanism that serves this function.
The mechanical seal is axially compressed through two joint surfaces of the movable ring and the static ring, the circumference slides relatively to achieve the effect of dynamic isolation seal, heat is generated at the joint surfaces in the process, in order to ensure long-time stable operation of the mechanical seal, the mechanical seal is cooled and lubricated, and the existing three mechanical seal modes for cooling and lubricating the joint surfaces through medium in the pump body or cooling water outside still have some defects: 1. single end face mechanical seal: the operation in absence of liquid is not possible; 2. and (3) double-end-face mechanical sealing: the cooling water needs to be externally connected with a complex pipeline system, the cooling water can not be broken, the installation and maintenance are complex, and the cost is high; 3. k-type power seal can not run in a liquid shortage, is low in pressure resistance and short in service life, so that a corresponding mechanical seal system for a pump which can resist the liquid shortage is needed to be provided for solving the problems.
Disclosure of Invention
The utility model aims at: in order to solve the above problems, a mechanical seal system for a pump is proposed which is resistant to the operation of a liquid shortage.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a mechanical seal system for pump of resistant lacking liquid operation, includes pump case, water injection well choke joint and constant position oil cup, the inside pump shaft that wears to be equipped with of pump case, pump shaft outside wall fixed mounting has the axle sleeve, pump shaft one end hookup has the impeller, pump case one side fixed mounting has the pump cover, one side fixed mounting that the pump cover kept away from the pump case has the gland, the interior table wall of gland is screwed connection organic seal seat, the mechanical seal seat has quiet ring seat through spring pin one fixed mounting, the interior table wall fixed mounting of quiet ring seat has the quiet ring spare with axle sleeve looks butt, quiet ring spare outward wall looks butt has the moving ring spare, moving ring spare outward wall fixed mounting has the moving ring seat, axle sleeve outward wall has the transmission seat through spring pin two fixed mounting, be fixed with the bellows between transmission seat and the moving ring spare, be provided with drive assembly between moving ring seat and the transmission seat, the inside packing of machine seal seat has the conduction oil, and the arc end outward wall of machine seal is fixed mounting has discharge valve, end cap, and temperature sensor respectively, set up between axle sleeve and the machine skeleton seal.
Preferably, the transmission assembly comprises horizontal springs, a plurality of groups of horizontal springs are distributed between the transmission seat and the movable ring seat in a ring shape, and the movable ring seat and the horizontal end of the transmission seat are mutually engaged.
Preferably, the transmission assembly comprises a surrounding spring, wherein the surrounding spring is fixedly arranged between the movable ring seat and the transmission seat, and the surrounding spring is sleeved on the outer side of the corrugated pipe.
Preferably, a fan is fixedly arranged on the outer surface wall of the pump shaft. One side of the fan is abutted against the shaft sleeve.
Preferably, the outer surface wall of the arc-shaped end of the static ring seat is fixedly provided with an O-shaped ring which is abutted against the inner surface wall of the machine seal seat, and the inner surface wall of the pump cover is fixedly provided with a sealing gasket which is abutted against the static ring seat.
Preferably, the outer surface wall of the shaft sleeve is provided with a step, the framework oil seal is fixedly connected with the machine seal seat, the bottom of the framework oil seal is abutted to the outer surface wall of the step, and one side of the step is in clearance arrangement with the machine seal seat.
Preferably, turbulent flow blades are fixedly arranged on the inner surface wall of the mechanical seal seat, and a plurality of groups of turbulent flow blades are distributed in a ring shape.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the utility model, the heat conducting oil is filled in the machine seal seat, so that the lubricating effect between the movable ring and the static ring is achieved, meanwhile, the heat radiating fin on the machine seal seat is matched, the good heat conducting effect on the movable ring and the static ring is ensured, the fan can be designed at the rear end to rotate along with the rotating shaft, the heat of the machine seal heat radiating fin is radiated, meanwhile, the fan stops working when the pump is stopped, and the energy waste caused by the fact that the machine seal flushing cooling mechanism is not stopped after the pump is stopped is avoided.
2. In the utility model, the front end face of the machine seal is sealed by adopting a friction pair, the inner side of the machine seal is contacted with a medium in the pump body, the outer side of the machine seal is contacted with heat conduction oil, the machine seal can not be damaged as long as one side of the machine seal is provided with liquid, the rear end of the machine seal is sealed by adopting a framework oil seal, the seal can not fail after long-time running under the condition of a certain lubricating oil, and the problem that the rear end face of the machine seal with the common double end faces fails immediately once water is lost is solved.
3. According to the utility model, the single-phase exhaust valve is arranged on the machine seal seat, so that the problem that the temperature rise and the air pressure increase in the machine seal are reduced, the oiling nozzle is arranged at the lower end of the machine seal seat, oiling can be ensured, air in the inner cavity of the machine seal seat can be well discharged, the oiling nozzle can be unscrewed to play a role in oil discharge maintenance, the constant-position oil cup can be in butt joint with the oiling nozzle, oil can be automatically replenished, and the oiling maintenance time is prolonged.
4. According to the utility model, the designed gland replaceable structure solves the problems that the pump mounting interface is different in size and not universal in machine sealing, the designed static ring seat replaceable structure is used for replacing static ring seats made of different materials according to different corrosive mediums so as to expand performance, the designed shaft sleeve can be used for replacing the structure, the shaft sleeve made of different materials according to different corrosive mediums so as to expand performance, the middle of the shaft sleeve is provided with a protruding step, the outer diameter of the step is subjected to fine grinding treatment and dynamic sealing with a framework oil seal, the left side of the step and the corrugated pipe are compressed and play a sealing and axial positioning role at the same time, a certain gap is reserved between the right side of the step and the rear cover in a machine sealing seat, the step and the rear cover are pressed in a machine sealing loose state, the shaft sleeve is prevented from being damaged by serial movement in transportation, the fixed gap is reserved between the step of the shaft sleeve and the rear cover after the machine sealing is installed in place, and the rotary operation of the shaft sleeve is ensured not to interfere with the rear cover.
5. In the utility model, the requirements of crystalline medium conveying and amorphous medium conveying can be respectively met through the forced transmission and elastic transmission two sets of transmission components corresponding to the horizontal springs and the surrounding springs, so as to achieve the expansion of performance.
Drawings
FIG. 1 shows a schematic overall structure provided in accordance with an embodiment of the present utility model;
FIG. 2 shows an enlarged schematic view of the structure of FIG. 1A provided in accordance with an embodiment of the present utility model;
fig. 3 shows a schematic diagram of a constant-level oil cup according to an embodiment of the present utility model;
fig. 4 shows a schematic structural diagram of a plug according to an embodiment of the present utility model;
fig. 5 shows a schematic diagram of a wrap spring structure provided according to an embodiment of the present utility model.
Legend description:
1. a pump housing; 2. an impeller; 3. a pump cover; 4. a gland; 5. a sealing gasket; 6. a stationary ring seat; 7. a spring pin I; 8. an O-ring; 9. a machine sealing seat; 10. an exhaust valve; 11. a framework oil seal; 12. a fan; 13. a pump shaft; 14. a shaft sleeve; 15. a spring pin II; 16. a transmission seat; 17. a bellows; 18. a horizontal spring; 19. a movable ring seat; 20. a moving ring; 21. a stationary ring member; 22. a fueling nozzle; 23. a temperature sensor; 24. constant-position oil cup; 25. a plug; 26. a water tap joint; 27. turbulence blades; 28. surrounding the spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution:
a mechanical sealing system for a pump resistant to liquid shortage operation comprises a pump shell 1, a water nozzle joint 26 and a constant-position oil cup 24, wherein a pump shaft 13 penetrates through the inside of the pump shell 1, a shaft sleeve 14 is fixedly arranged on the outer surface wall of the pump shaft 13, one end of the pump shaft 13 is connected with an impeller 2, one side of the pump shell 1 is fixedly provided with a pump cover 3, one side, far away from the pump shell 1, of the pump cover 3 is fixedly provided with a gland 4, the inner surface wall of the gland 4 is rotationally connected with an organic sealing seat 9, the organic sealing seat 9 is fixedly provided with a static ring seat 6 through a spring pin 7, the inner surface wall of the static ring seat 6 is fixedly provided with a static ring piece 21 abutted against the shaft sleeve 14, the outer surface wall of the static ring piece 21 is abutted against a movable ring piece 20, the outer surface wall of the movable ring piece 20 is fixedly provided with a movable ring seat 19, the outer surface wall of the shaft sleeve 14 is fixedly provided with a transmission seat 16 through a spring pin 15, a corrugated pipe 17 is fixedly arranged between the transmission seat 16 and the movable ring seat 16, a transmission assembly is arranged between the movable ring seat 19 and the transmission seat 16, the inside of the organic sealing seat 9 is filled with heat conducting oil, the arc-shaped end surface wall of the organic sealing seat 9 is fixedly provided with an oil seal 10, an oil filling nozzle 22, a temperature sensor 23 and a temperature sensor 14 are respectively arranged between the air sealing seat 11 and a frame 11;
the static ring is inlaid in the static ring seat 6 and is statically sealed through the sealing gasket 5, the movable ring piece 20 is in mirror surface joint with the static ring piece 21, the movable ring piece 20 is axially compressed through the horizontal spring 18 and driven by the movable ring seat 19, the driving seat 16 and the rotating shaft 14, the movable ring piece 20 circumferentially slides relative to the static ring piece 21, the dynamic isolation sealing effect is achieved, the movable ring piece 20 is sealed with the rotating shaft 14 through the corrugated pipe 17, heat conducting oil is filled in the machine seal seat 9, the lubricating effect between the movable ring piece 20 and the static ring piece 21 is achieved, and meanwhile, the heat radiating fin on the machine seal seat 9 is matched, and the good heat conducting effect between the movable ring piece 20 and the static ring piece 21 is guaranteed;
the front end face of the machine seal is sealed by a friction pair, the inner side of the machine seal is contacted with a medium in the pump body, the outer side of the machine seal is contacted with heat conduction oil, the machine seal can be prevented from being damaged as long as one side of the machine seal is provided with liquid, the rear end of the machine seal is sealed by a framework oil seal 11, the machine seal can be operated for a long time without failure under the condition of a certain lubricating oil, and the problem that the rear end face of the common double-end-face machine seal is immediately failed once water is lost is solved;
the single-phase exhaust valve 10 is arranged on the mechanical seal seat 9, so that the problem that the temperature rise and the air pressure increase in the mechanical seal are reduced, the oiling nozzle 22 is arranged at the lower end of the mechanical seal seat 9, oiling can be ensured, air in the inner cavity of the mechanical seal seat 9 can be well discharged, the oiling nozzle 22 can be unscrewed to play a role in oil discharge maintenance, the constant-position oil cup 22 can be butted with the oiling nozzle 22, oil can be automatically replenished, the oiling maintenance time is prolonged, the exhaust valve 10 and the plug 25 can be replaced by the water nozzle joint 26, the constant-position oil cup 24 is replaced by the plug 25, the mechanical seal cooling effect can be increased by on-site cooling water flushing, and meanwhile, the damage of internal medium crystals to the movable ring 20 and the static ring 21 can be effectively prevented by water flushing;
the designed gland 4 can be replaced, the problems that the pump mounting interfaces are different in size and not universal in mechanical seal are solved, the designed static ring seat 6 can be replaced, static ring seats 6 made of different materials are replaced according to different corrosive mediums, so that the performance is expanded, the designed shaft sleeve 14 can be replaced, and the shaft sleeves made of different materials are replaced according to different corrosive mediums, so that the performance is expanded.
Specifically, as shown in fig. 1 and 5, the transmission assembly includes a horizontal spring 18, multiple groups of horizontal springs 18 are annularly distributed between the transmission seat 16 and the movable ring seat 19, the movable ring seat 19 and the horizontal end of the transmission seat 16 are mutually engaged, the transmission assembly includes a surrounding spring 28, the surrounding spring 28 is fixedly installed between the movable ring seat 19 and the transmission seat 16, the surrounding spring 28 is sleeved on the outer side of the corrugated pipe 17, the movable ring seat 19 and the outer side of the transmission seat 16 are mutually engaged, the two can axially move under the action of the horizontal spring 18, torque is rigidly transmitted through the engaged tooth-shaped outer ring in the circumferential direction, when the transmission assembly is used for conveying non-crystalline and strong-oxidizing mediums, the movable ring seat 19 is driven by friction force of the surrounding spring 28 and the corrugated pipe 17, the shaft sleeve 14 and the static ring seat 6 are made of lining fluorine materials, the corrosion resistance and strong-oxidizing resistance are stronger, and the requirements of crystalline medium conveying and non-crystalline medium conveying can be respectively met through two sets of transmission assemblies of forced transmission and elastic transmission corresponding to the horizontal spring 18 and the surrounding spring 28, so as to achieve the performance expansion.
Specifically, as shown in fig. 1 and 2, a fan 12 is fixedly mounted on the outer surface wall of the pump shaft 13. One side of the fan 12 is abutted against the shaft sleeve 14, the fan 12 is designed at the rear end to rotate along with the pump shaft 13 and radiate heat to the mechanical seal radiating fins, and meanwhile, the fan 12 stops working when the pump is stopped, so that the energy waste caused by the fact that the mechanical seal washes the cooling mechanism after the pump is stopped is avoided;
the outer surface wall of the arc-shaped end of the static ring seat 6 is fixedly provided with an O-shaped ring 8 which is abutted against the inner surface wall of the machine seal seat 9, the inner surface wall of the pump cover 3 is fixedly provided with a sealing gasket 5 which is abutted against the static ring seat 6, the serial number 6 static ring seat is fixed through a serial number 7 spring pin, sealing is carried out between the O-shaped ring 8 and the machine seal seat 9, and sealing is carried out between the sealing gasket 5 and the pump cover 3.
Specifically, as shown in fig. 2 and 3, a step is arranged on the outer surface wall of the shaft sleeve 14, the framework oil seal 11 is fixedly connected with the machine seal seat 9, the bottom of the framework oil seal 11 is abutted against the outer surface wall of the step, one side of the step is in clearance arrangement with the machine seal seat 9, a protruding step is arranged in the middle of the shaft sleeve 14, the outer diameter of the step is subjected to fine grinding treatment and is subjected to dynamic seal with the framework oil seal 11, the left side of the step is tightly pressed with the corrugated pipe 17 and plays a role in sealing and axial positioning, a certain clearance is reserved between the right side of the step and the rear cover when the machine seal is in a loose state, the step is pressed with the rear cover to prevent the shaft sleeve from being in series movement to damage the movable ring in transportation, the fixed clearance is reserved between the step of the shaft sleeve 14 and the rear cover when the machine seal is installed in place, and the shaft sleeve 14 is ensured not to interfere with the rear cover when in rotary operation;
the turbulent flow blades 27 are fixedly arranged on the inner surface wall of the machine seal seat 9, a plurality of groups of turbulent flow blades 27 are annularly distributed, a plurality of axial rib-shaped turbulent flow blades 28 are arranged on the inner surface wall of the machine seal seat, when the system is in operation, the machine seal inner structure rotates along with the rotating shaft, cooling and lubricating medium in the machine seal forms a liquid ring under the action of centrifugal force, so that the cooling and lubricating effect on a sealing surface is lost, the problem can be well solved by arranging the turbulent flow blades 28 on the inner surface wall of the machine seal seat 9, the turbulent flow blades 28 are formed when the liquid ring rotates along the inner surface wall of the machine seal seat, and the inner diameter part is returned to be washed to the sealing surface.
Working principle: the static ring is inlaid in the static ring seat 6 and is statically sealed through the sealing gasket 5, the movable ring piece 20 is in mirror surface joint with the static ring piece 21, the movable ring piece 20 is axially compressed through the horizontal spring 18 and driven by the movable ring seat 19, the driving seat 16 and the rotating shaft 14, the movable ring piece 20 circumferentially slides relative to the static ring piece 21, the dynamic isolation sealing effect is achieved, the movable ring piece 20 is sealed with the rotating shaft 14 through the corrugated pipe 17, heat conducting oil is filled in the machine seal seat 9, the lubricating effect between the movable ring piece 20 and the static ring piece 21 is achieved, and meanwhile, the heat radiating fin on the machine seal seat 9 is matched, and the good heat conducting effect between the movable ring piece 20 and the static ring piece 21 is guaranteed; the front end face of the machine seal is sealed by a friction pair, the inner side of the machine seal is contacted with a medium in the pump body, the outer side of the machine seal is contacted with heat conduction oil, the machine seal can be prevented from being damaged as long as one side of the machine seal is provided with liquid, the rear end of the machine seal is sealed by a framework oil seal 11, the machine seal can be operated for a long time without failure under the condition of a certain lubricating oil, and the problem that the rear end face of the common double-end-face machine seal is immediately failed once water is lost is solved; the single-phase exhaust valve 10 is arranged on the mechanical seal seat 9, so that the problem that the temperature rise and the air pressure increase in the mechanical seal are reduced, the oiling nozzle 22 is arranged at the lower end of the mechanical seal seat 9, oiling can be ensured, air in the inner cavity of the mechanical seal seat 9 can be well discharged, the oiling nozzle 22 can be unscrewed to play a role in oil discharge maintenance, the constant-position oil cup 22 can be butted with the oiling nozzle 22, oil can be automatically replenished, the oiling maintenance time is prolonged, the exhaust valve 10 and the plug 25 can be replaced by the water nozzle joint 26, the constant-position oil cup 24 is replaced by the plug 25, the mechanical seal cooling effect can be increased by on-site cooling water flushing, and meanwhile, the damage of internal medium crystals to the movable ring 20 and the static ring 21 can be effectively prevented by water flushing; the designed gland 4 can be replaced, the problems that the pump mounting interfaces are different in size and not universal in mechanical seal are solved, the designed static ring seat 6 can be replaced, static ring seats 6 made of different materials are replaced according to different corrosive mediums, so that the performance is expanded, the designed shaft sleeve 14 can be replaced, and the shaft sleeves made of different materials are replaced according to different corrosive mediums, so that the performance is expanded.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a mechanical seal system for pump of resistant lacking liquid operation, includes pump case (1), water injection well choke joint (26) and constant position oil cup (24), its characterized in that, pump case (1) inside wears to be equipped with pump shaft (13), pump shaft (13) outward appearance wall fixed mounting has axle sleeve (14), pump shaft (13) one end hookup has impeller (2), pump case (1) one side fixed mounting has pump cover (3), one side that pump cover (3) kept away from pump case (1) fixed mounting has gland (4), gland (4) interior surface wall spin-on connection organic seal seat (9), interior surface wall of gland (4) is through spring pin one (7) fixed mounting has quiet ring seat (6), interior surface wall fixed mounting of quiet ring seat (6) has quiet ring piece (21) with axle sleeve (14) looks butt, quiet ring piece (21) outward surface wall butt has moving ring piece (20), moving ring piece (20) outward appearance wall fixed mounting has moving ring seat (19), axle sleeve (14) wall is through spring two outward appearance pin (15) fixed mounting has gland (16), between the interior seal (16) and the drive tube (16) of heat transfer line, it has between the drive tube (16) and the drive seat (16) to fill, drive tube (16) is fixed with the inside of drive seat (17), and the outer surface wall of the arc-shaped end of the machine sealing seat (9) is fixedly provided with an exhaust valve (10), an oil filling nozzle (22), a plug (25) and a temperature sensor (23) respectively, and a framework oil seal (11) is arranged between the shaft sleeve (14) and the machine sealing seat (9).
2. The mechanical seal system for a pump capable of resisting liquid shortage according to claim 1, wherein the transmission assembly comprises horizontal springs (18), a plurality of groups of horizontal springs (18) are distributed between a transmission seat (16) and a movable ring seat (19) in a ring shape, and the movable ring seat (19) and the horizontal end of the transmission seat (16) are mutually meshed.
3. A mechanical seal system for a pump operating in a liquid-starved condition according to claim 1, wherein the transmission assembly includes a surrounding spring (28), the surrounding spring (28) is fixedly mounted between the movable ring seat (19) and the transmission seat (16), and the surrounding spring (28) is sleeved outside the bellows (17).
4. The mechanical seal system for a pump capable of resisting liquid shortage according to claim 1, wherein a fan (12) is fixedly installed on the outer surface wall of the pump shaft (13), and one side of the fan (12) is abutted against a shaft sleeve (14).
5. The mechanical seal system for the pump capable of resisting the liquid shortage according to claim 1, wherein an O-shaped ring (8) which is abutted against the inner surface wall of the mechanical seal seat (9) is fixedly arranged on the outer surface wall of the arc-shaped end of the static ring seat (6), and a sealing gasket (5) which is abutted against the static ring seat (6) is fixedly arranged on the inner surface wall of the pump cover (3).
6. The mechanical seal system for the pump capable of resisting the operation of the liquid shortage according to claim 1, wherein the outer surface wall of the shaft sleeve (14) is provided with a step, the framework oil seal (11) is fixedly connected with the machine seal seat (9), the bottom of the framework oil seal (11) is abutted against the outer surface wall of the step, and one side of the step is in clearance arrangement with the machine seal seat (9).
7. The mechanical seal system for the pump capable of resisting the liquid shortage operation according to claim 1 is characterized in that turbulent flow blades (27) are fixedly arranged on the inner surface wall of the mechanical seal seat (9), and a plurality of groups of turbulent flow blades (27) are distributed in a ring shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320655667.XU CN219795643U (en) | 2023-03-29 | 2023-03-29 | Mechanical sealing system for pump capable of resisting liquid shortage operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320655667.XU CN219795643U (en) | 2023-03-29 | 2023-03-29 | Mechanical sealing system for pump capable of resisting liquid shortage operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795643U true CN219795643U (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320655667.XU Active CN219795643U (en) | 2023-03-29 | 2023-03-29 | Mechanical sealing system for pump capable of resisting liquid shortage operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795643U (en) |
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2023
- 2023-03-29 CN CN202320655667.XU patent/CN219795643U/en active Active
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