CN202108771U - Sealing device structure for sewage pump - Google Patents
Sealing device structure for sewage pump Download PDFInfo
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- CN202108771U CN202108771U CN201120174266XU CN201120174266U CN202108771U CN 202108771 U CN202108771 U CN 202108771U CN 201120174266X U CN201120174266X U CN 201120174266XU CN 201120174266 U CN201120174266 U CN 201120174266U CN 202108771 U CN202108771 U CN 202108771U
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- seal
- cylinder cover
- oil cylinder
- outside framework
- framework oil
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Abstract
A sealing device structure for a sewage pump relates to the field of sealing devices. The sealing device structure is composed of a rotating shaft (1), an oil chamber (2), an oil cylinder cover (3), impellers (4), a double-end-face mechanical seal (5), a first framework oil seal (6), a second framework oil seal (7) and an abrasion resistant sleeve (8). The rotating shaft (1) is connected with the oil chamber (2), the oil cylinder cover (3) is arranged at the lower end of the oil chamber (2), and the impellers (4) are connected at the lower end of the oil cylinder cover (3) and the rotating shaft (1). The double-end-face mechanical seal (5) is arranged in a seal cavity formed between the oil chamber (2) and the oil cylinder cover (3). The first framework oil seal (6) is arranged at the connection position of the oil cylinder cover (3) and the rotating shaft (1), the second framework oil seal (7) is arranged at the connection position of the oil cylinder cover (3) and the impellers (4), and the abrasion resistant sleeve (8) is arranged on the inner wall of the second framework oil seal (7). The sealing device structure for the sewage pump can make the best of space of an electric pump, and is especially applicable to the sewage type submersible electric pump. In addition, the sealing device structure for the sewage pump is reasonable, safe, low in price and convenient to assemble, and prolongs service life of the electric pump.
Description
Technical field:
The utility model relates to the seal arrangement field, relates in particular to a kind of pollution discharge pump and uses sealing device structure.
Background technique:
Electric pump is made up of water pump, sealing and motor three parts; Exist pressure reduction between the liquid in the pump in outer atmosphere of liquid and pump and the grease chamber; Liquid along the gap between axle and the pump housing, oil cylinder cover, grease chamber to external leakage; Seal arrangement (axle envelope) need be set for this reason, and electric pump is the working life of the reliability direct relation electric pump of Submerged Motor Pumps sealing particularly, and existing in the market pollution discharge pump seal arrangement is owing to receive the restriction of seal chamber structure; Generally all be to use two seals, promptly adopt the combination of a double mechanical seal and an outside framework oil seal; Outside framework oil seal is the sealing of first road, places impurity entering grease chamber in water and the water; Double mechanical seal is the sealing of second road, prevents that liquid leaks into motor in the grease chamber; Because the running of electric pump continuous high speed, outside framework oil seal and rotating shaft are are very easily worn and torn, and this sealing configuration of present common use is as long as mechanical seal damages in the grease chamber, and the liquid in the grease chamber (oil water mixture) will get into motor, causes motor to burn out.
The model utility content:
The purpose of the utility model provides a kind of pollution discharge pump and uses sealing device structure, and it can make full use of the electric pump space, and is rationally reliable, is specially adapted to the pollution discharge type Submerged Motor Pumps, and price is low, and is easy to assembly, prolongs the working life of electric pump.
In order to solve the existing problem of background technique, the utility model is to adopt following technological scheme: it is made up of rotating shaft 1, grease chamber 2, oil cylinder cover 3, impeller 4, double mechanical seal 5, first outside framework oil seal 6, second outside framework oil seal 7, wear-resistant sleeve 8; Rotating shaft 1 is connected with grease chamber 2; The lower end of grease chamber 2 is provided with oil cylinder cover 3; Oil cylinder cover 3 is connected with impeller 4 with the lower end of rotating shaft 1, and double mechanical seal 5 is arranged in the Seal cage between grease chamber 2 and the oil cylinder cover 3, and first outside framework oil seal 6 is arranged on the joint of oil cylinder cover 3 and rotating shaft 1; Second outside framework oil seal 7 is arranged on the joint of oil cylinder cover 3 and impeller 4, and the inwall of second outside framework oil seal 7 is provided with wear-resistant sleeve 8.
Described second outside framework oil seal 7 is the sealing of first road, mainly is that impurity gets into the sealing of second road in anti-sealing and the water; First outside framework oil seal 6 is the sealing of second road, mainly is that the liquid that prevents the first road seal leakage gets into three seals; Double mechanical seal 5 is a three seals, and the liquid that prevents the second road seal leakage gets into that liquid leaks into motor in grease chamber and the grease chamber; Rotating ring can rotate also and can move axially with main shaft; Rotating ring leans on the pressure of pressure and the spring of liquid in the Seal cage to make its end face subsides and on the end face of stationary ring, seals; Stationary ring and grease chamber and upper end cap compress sealing by rubber; Rotating ring and main shaft seal, common shutoff the whole of leak of liquid maybe approach.
The sealing system that the whole sealing configuration of the utility model is made up of three seals realizes that the reliable sealing of electric pump has been protected rotating shaft 1 unlikely wearing and tearing again.
The utility model gap between first outside framework oil seal 6 and second outside framework oil seal 7 is when mounted filled it up with lubricant oil, makes electric pump in the long-term operation process, reduces the friction between outside framework oil seal and the rotating shaft.
The utility model can make full use of the electric pump space, and is rationally reliable, is specially adapted to the pollution discharge type Submerged Motor Pumps, and price is low, and is easy to assembly, prolongs the working life of electric pump.
Description of drawings:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the schematic representation of grease chamber in the utility model;
Fig. 3 is the sectional view of grease chamber in the utility model;
Fig. 4 is the schematic representation of oil cylinder cover in the utility model;
Fig. 5 is the sectional view of oil cylinder cover in the utility model;
Fig. 6 is the schematic representation of impeller in the utility model.
Embodiment:
With reference to Fig. 1-Fig. 6, this embodiment adopts following technological scheme: it is made up of rotating shaft 1, grease chamber 2, oil cylinder cover 3, impeller 4, double mechanical seal 5, first outside framework oil seal 6, second outside framework oil seal 7, wear-resistant sleeve 8; Rotating shaft 1 is connected with grease chamber 2; The lower end of grease chamber 2 is provided with oil cylinder cover 3; Oil cylinder cover 3 is connected with impeller 4 with the lower end of rotating shaft 1, and double mechanical seal 5 is arranged in the Seal cage between grease chamber 2 and the oil cylinder cover 3, and first outside framework oil seal 6 is arranged on the joint of oil cylinder cover 3 and rotating shaft 1; Second outside framework oil seal 7 is arranged on the joint of oil cylinder cover 3 and impeller 4, and the inwall of second outside framework oil seal 7 is provided with wear-resistant sleeve 8.
Described second outside framework oil seal 7 is the sealing of first road, mainly is that impurity gets into the sealing of second road in anti-sealing and the water; First outside framework oil seal 6 is the sealing of second road, mainly is that the liquid that prevents the first road seal leakage gets into three seals; Double mechanical seal 5 is a three seals, and the liquid that prevents the second road seal leakage gets into that liquid leaks into motor in grease chamber and the grease chamber; Rotating ring can rotate also and can move axially with main shaft; Rotating ring leans on the pressure of pressure and the spring of liquid in the Seal cage to make its end face subsides and on the end face of stationary ring, seals; Stationary ring and grease chamber and upper end cap compress sealing by rubber; Rotating ring and main shaft seal, common shutoff the whole of leak of liquid maybe approach.
The sealing system that the whole sealing configuration of this embodiment is made up of three seals realizes that the reliable sealing of electric pump has been protected rotating shaft 1 unlikely wearing and tearing again.
This embodiment gap between first outside framework oil seal 6 and second outside framework oil seal 7 is when mounted filled it up with lubricant oil, makes electric pump in the long-term operation process, reduces the friction between outside framework oil seal and the rotating shaft.
This embodiment can make full use of the electric pump space, and is rationally reliable, is specially adapted to the pollution discharge type Submerged Motor Pumps, and price is low, and is easy to assembly, prolongs the working life of electric pump.
Claims (4)
1. a pollution discharge pump is used sealing device structure, it is characterized in that it is made up of rotating shaft (1), grease chamber (2), oil cylinder cover (3), impeller (4), double mechanical seal (5), first outside framework oil seal (6), second outside framework oil seal (7), wear-resistant sleeve (8); Rotating shaft (1) is connected with grease chamber (2); The lower end of grease chamber (2) is provided with oil cylinder cover (3); Oil cylinder cover (3) is connected with impeller (4) with the lower end of rotating shaft (1), and double mechanical seal (5) is arranged in the Seal cage between grease chamber (2) and the oil cylinder cover (3), and first outside framework oil seal (6) is arranged on the joint of oil cylinder cover (3) and rotating shaft (1); Second outside framework oil seal (7) is arranged on the joint of oil cylinder cover (3) and impeller (4), and the inwall of second outside framework oil seal (7) is provided with wear-resistant sleeve (8).
2. a kind of pollution discharge pump according to claim 1 is used sealing device structure, it is characterized in that described first outside framework oil seal (6) is the sealing of first road, and second outside framework oil seal (7) is the sealing of second road, and double mechanical seal (5) is a three seals.
3. a kind of pollution discharge pump according to claim 2 is used sealing device structure, it is characterized in that the sealing system that described whole sealing configuration is made up of three seals.
4. a kind of pollution discharge pump according to claim 1 is used sealing device structure, it is characterized in that lubricant oil is filled it up with in the gap between first outside framework oil seal (6) and second outside framework oil seal (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120174266XU CN202108771U (en) | 2011-05-27 | 2011-05-27 | Sealing device structure for sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120174266XU CN202108771U (en) | 2011-05-27 | 2011-05-27 | Sealing device structure for sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108771U true CN202108771U (en) | 2012-01-11 |
Family
ID=45434207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120174266XU Expired - Fee Related CN202108771U (en) | 2011-05-27 | 2011-05-27 | Sealing device structure for sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108771U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194407A (en) * | 2018-01-19 | 2018-06-22 | 张家港保税区泰德瑞尔轨道科技有限公司 | Vacuum excrement collector sealing device |
| CN108443164A (en) * | 2018-04-23 | 2018-08-24 | 汉能（天津）工业泵有限公司 | The low liquid level pump drainage pump of light-duty big flow |
| CN110454431A (en) * | 2019-09-17 | 2019-11-15 | 苏州沃达园林机械有限公司 | The cold lubrication system of oil of submersible pump mechanical seal |
-
2011
- 2011-05-27 CN CN201120174266XU patent/CN202108771U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194407A (en) * | 2018-01-19 | 2018-06-22 | 张家港保税区泰德瑞尔轨道科技有限公司 | Vacuum excrement collector sealing device |
| CN108443164A (en) * | 2018-04-23 | 2018-08-24 | 汉能（天津）工业泵有限公司 | The low liquid level pump drainage pump of light-duty big flow |
| CN110454431A (en) * | 2019-09-17 | 2019-11-15 | 苏州沃达园林机械有限公司 | The cold lubrication system of oil of submersible pump mechanical seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120527 |