CN201425037Y - Leakage-preventing sealing device for submersible sewage pump - Google Patents
Leakage-preventing sealing device for submersible sewage pump Download PDFInfo
- Publication number
- CN201425037Y CN201425037Y CN2009200333112U CN200920033311U CN201425037Y CN 201425037 Y CN201425037 Y CN 201425037Y CN 2009200333112 U CN2009200333112 U CN 2009200333112U CN 200920033311 U CN200920033311 U CN 200920033311U CN 201425037 Y CN201425037 Y CN 201425037Y
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- CN
- China
- Prior art keywords
- motor
- pump
- sewage pump
- submersible sewage
- rotary packing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a leakage-preventing sealing device for a submersible sewage pump. A motor shaft in the shell of the leakage-preventing sealing device is provided with a motor sealing base; a motor sealing base sealing ring is arranged between the motor sealing base and the motor shaft; one side of a motor arranged on the motor shaft in the shell of the leakage-preventing sealing device is provided with a movable motor sealing ring and a static motor sealing ring which is arranged in the shell of the motor; a sealing ring is arranged between the static motor sealing ring and the shell of the motor; one side of a submersible sewage pump on the motor shaft is provided with a movable submersible sewage pump sealing ring and a static submersible sewage pump sealing ring which is arranged in the shell of the submersible sewage pump; a sealing ring is arranged between the static submersible sewage pump sealing ring and the shell of the submersible sewage pump; and corrugated pipes are arranged between the motor sealing base outside the motor shaft and the movable motor sealing ring and between the motor sealing base and the movable submersible sewage pump sealing ring. Compared with the prior leakage-preventing sealing device for the submersible sewage pump, the leakage-preventing sealing device for the submersible sewage pump of the utility model has the advantages of reasonable design, simple structure, good sealing performance, safe and reliable running and long service life and can be used for the submersible water pump.
Description
Technical field
The utility model belongs to the oil-refining chemical equipment technical field, is specifically related to the leak-tight seal device of draining-off sewage pump.
Background technique
The submerged pump that oil refinery uses is the shared motor shaft of motor and pump; pump housing intermediate compartment is annotated the lubricant oil protection; the employed seal arrangement of motor shaft adopts the Double End spring and a motor stationary seal ring sealed electric-motor is installed; a pump stationary seal ring canned pump; two motor rotary packing rings and two pump rotary packing rings also are installed on the motor shaft; motor rotary packing ring and pump rotary packing ring are graphite-seal ring, and two motor rotary packing rings and two pump rotary packing rings are used to prevent that sewage and lubricant oil from scurrying in motor and the pump.Motor and pump are after running after a while, motor rotary packing ring and the heavy wear of pump rotary packing ring, because the motor rotary packing ring is motion to axial on pump, the acting in conjunction of impurity makes the motor shaft wearing and tearing in the sewage, and motor rotary packing ring and pump rotary packing ring are graphite-seal ring in addition, and intensity is low, be easy to wearing and tearing, cause motor rotary packing ring and pump rotary packing ring to damage, sewage leaks in the motor, has damaged motor.Because pump shaft and rotor are connected as a single entity, maintenance expenses is very high, and pump housing heaviness in addition, usually directly in sewage, try out down after the servicing machine envelope is finished,, cause the motor water inlet in case Buddhist nun's seal apparatus leaks, motor occurs and burn out accident, increased maintenance cost.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned submerged pump seal arrangement, provides that a kind of reasonable in design, simple in structure, good seal performance, running are safe and reliable, the leak-tight seal device of the submerged pump of long service life.
Solving the problems of the technologies described above the technological scheme that is adopted is: motor shaft is provided with machine envelope seat in the housing, between machine envelope seat and the motor shaft organic envelope seat seal ring is set, a side of motor is provided with the motor rotary packing ring and is installed in the interior motor stationary seal ring of electric machine casing on the interior motor shaft of housing, be provided with seal ring between motor stationary seal ring and the electric machine casing, a side of pump is provided with the pump rotary packing ring and is installed in the interior pump stationary seal ring of pump case on the motor shaft, be provided with seal ring between pump stationary seal ring and the pump case, between motor shaft outside machine envelope seat and the motor rotary packing ring, be provided with bellows between machine envelope seat and the pump rotary packing ring.
Motor rotary packing ring of the present utility model and pump rotary packing ring are the Hardmetal materials member.
The utility model has adopted fitting machine envelope seat, motor rotary packing ring, pump rotary packing ring on motor shaft; 4 rotary packing rings of former seal arrangement have been replaced; between machine envelope seat and motor rotary packing ring, the pump rotary packing ring bellows is installed on the motor shaft; improved the sealing of motor shaft; motor rotary packing ring, pump rotary packing ring are the Hardmetal materials member; reliability, the durability of sealing have been improved; prolonged the working life of motor rotary packing ring, pump rotary packing ring; reduce the maintenance expenses of equipment, protected motor.The utility model is compared with existing submerged pump seal arrangement, has advantages such as reasonable in design, simple in structure, good seal performance, running are safe and reliable, long service life, can use on submersible pump.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiments.
In Fig. 1, the leak-tight seal device of the submerged pump of present embodiment is made of housing 1, seal plug 2, machine envelope seat seal ring 3, pump rotary packing ring 4, pump stationary seal ring 6, seal ring 8, bellows 9, machine envelope seat 10, screw 11, motor rotary packing ring 12,13 connections of motor stationary seal ring.
In housing 1, fixedly mount organic envelope seat 10 with screw 11 on the motor shaft 7, between machine envelope seat 10 and the motor shaft 7 organic envelope seat seal ring 3 is installed, a side of motor 14 is equipped with motor stationary seal ring 13 and motor rotary packing ring 12 on the motor shaft 7, motor stationary seal ring 13 is arranged within the electric machine casing, seal ring 8 is installed on the excircle of motor stationary seal ring 13, and motor shaft 7 outer cover are equipped with bellows 9 between motor rotary packing ring 12 and machine envelope seat 10.A side of pump 5 is equipped with pump stationary seal ring 6 and pump rotary packing ring 4 on the motor shaft 7, pump stationary seal ring 6 is arranged within the pump case, seal ring 8 is installed on the excircle of pump stationary seal ring 6, because motor rotary packing ring 12 of the present utility model and pump rotary packing ring 4 are the Hardmetal materials member, reliability, the durability of sealing have been improved greatly, motor shaft 7 outer cover are equipped with bellows 9 between pump rotary packing ring 4 and machine envelope seat 10, have improved the reliability of mechanical sealing element.The leak-tight seal device of the submerged pump of this structure has improved reliability, the durability of sealing greatly, has improved the working life and the sealability of motor rotary packing ring 12 and pump rotary packing ring 4, has protected motor 14.Housing 1 radially be processed with oil hole, oil hole is used for injecting lubricant oil in housing, motor rotary packing ring 12 and pump rotary packing ring 4 are lubricated, and by scyewed joint seal plug 2 is installed on the oil hole.
Claims (2)
1, a kind of leak-tight seal device of submerged pump, it is characterized in that: the interior motor shaft of housing (1) (7) is provided with machine envelope seat (10), between machine envelope seat (10) and the motor shaft (7) organic envelope seat seal ring (3) is set, the side that the interior motor shaft of housing (1) (7) is gone up motor (14) is provided with motor rotary packing ring (12) and is installed in the interior motor stationary seal ring (13) of electric machine casing, be provided with seal ring (8) between motor stationary seal ring (13) and the electric machine casing, the side that motor shaft (7) is gone up pump (5) is provided with pump rotary packing ring (4) and is installed in the interior pump stationary seal ring (6) of pump case, be provided with seal ring (8) between pump stationary seal ring (6) and the pump case, between outside machine envelope seat of motor shaft (7) (10) and the motor rotary packing ring (12), be provided with bellows (9) between machine envelope seat (10) and the pump rotary packing ring (4).
2, according to the leak-tight seal device of the described submerged pump of claim 1, it is characterized in that: said motor rotary packing ring (12) and pump rotary packing ring (4) are the Hardmetal materials member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200333112U CN201425037Y (en) | 2009-05-26 | 2009-05-26 | Leakage-preventing sealing device for submersible sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200333112U CN201425037Y (en) | 2009-05-26 | 2009-05-26 | Leakage-preventing sealing device for submersible sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425037Y true CN201425037Y (en) | 2010-03-17 |
Family
ID=42024482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200333112U Expired - Fee Related CN201425037Y (en) | 2009-05-26 | 2009-05-26 | Leakage-preventing sealing device for submersible sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425037Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108977A (en) * | 2011-03-30 | 2011-06-29 | 江苏全力机械制造有限公司 | Double-sealed structure of submersible sewage pump |
| CN111188789A (en) * | 2020-01-22 | 2020-05-22 | 西安陕鼓通风设备有限公司 | Centrifugal fan with shaft end sealing device capable of adapting to thermal deformation of casing |
-
2009
- 2009-05-26 CN CN2009200333112U patent/CN201425037Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108977A (en) * | 2011-03-30 | 2011-06-29 | 江苏全力机械制造有限公司 | Double-sealed structure of submersible sewage pump |
| CN111188789A (en) * | 2020-01-22 | 2020-05-22 | 西安陕鼓通风设备有限公司 | Centrifugal fan with shaft end sealing device capable of adapting to thermal deformation of casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20160526 |