CN2846820Y - Adjustable seal device for sealless vertical self sucking pump - Google Patents
Adjustable seal device for sealless vertical self sucking pump Download PDFInfo
- Publication number
- CN2846820Y CN2846820Y CN 200520046071 CN200520046071U CN2846820Y CN 2846820 Y CN2846820 Y CN 2846820Y CN 200520046071 CN200520046071 CN 200520046071 CN 200520046071 U CN200520046071 U CN 200520046071U CN 2846820 Y CN2846820 Y CN 2846820Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- pump
- vertical self
- water pump
- sidewall
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an adjustable seal device for vertical self-suction pumps without seals, which comprises a rotary shaft, an auxiliary impeller, a pump side wall and a shaft sleeve. The utility model is characterized in that the pump side wall is provided with a shaft hole which is provided with a cover plate; the cover plate is provided with through holes which are provided with adjusting and connecting screws inside; the end surface of the periphery of the cover plate and the pump side wall are provided with seal rings; the cover plate is provided with threaded bolts connected with the pump side wall. The number of the through holes on the cover plate is three at least. The number of the threaded bolts on the cover plate is three at least. The utility model has the advantages that the seal gap between the side all and the auxiliary impeller can be controlled and adjusted; the reliability of dynamic seals of the pump can be increased; the pump can be ensured to be sealed steadily after long running.
Description
Technical field
The utility model relates to a kind of seal arrangement, particularly a kind of nothing sealing vertical self-sucking pump adjustable sealing device.
Background technique
Its sealing effect of sealing configuration that present domestic nothing sealing automatic control self-priming pump adopts is unreliable, leak easily when water pump is in big pressure, and the sub-propeller consumed power is bigger.Main cause is: its principle of hydrodynamic seal is to utilize the sub-propeller rotation, produce pressure head and withstand the highly pressurised liquid of main impeller outlet to external leakage, as Fig. 1, the key of sub-propeller envelope pressure energy power is exactly to control sub-propeller blade and the formed seal clearance of sidewall axial clearance, and gap more little envelope pressure energy power is good more; The gap increases, and envelope pressure energy power can descend rapidly.Seal clearance is a design gaps in the existing sealing configuration, the machining error accumulative total of machinery and the summation of axial string momentum, to cause seal clearance to be difficult to control and reach requirement and can't measure, thereby cause sealing effect unreliable, phenomenons such as leakage will take place during big pressure spot.Seal clearance increases, and envelope pressure energy power reduces, and improves sealability by increase sub-propeller external diameter and can consume more high-power.In addition, after the pump long-time running, sub-propeller blade and sidewall may increase the gap at sealing position owing to friction, influence the sealing stability of pump, increase operating cost.
Summary of the invention
The purpose of this utility model is that the seal clearance that solves the sealing configuration that does not have the employing of sealing automatic control self-priming pump in the prior art is difficult to control, reduce existing the problems referred to above and produce envelope pressure energy power, a kind of nothing sealing vertical self-sucking pump adjustable sealing device that can the regulating and controlling seal clearance is provided.The utility model design does not have sealing vertical self-sucking pump adjustable sealing device, comprise rotating shaft, sub-propeller, water pump sidewall, axle sleeve, it is characterized in that: on the water pump sidewall, axis hole is arranged, one cover plate is arranged on the axis hole, cover plate has through hole, the transfer screw is arranged in the through hole, and cover plate periphery end face and water pump sidewall have seal ring, have bolt to connect the water pump sidewall on the cover plate.Through hole on the cover plate has three at least.Bolt on the cover plate has three at least.The utility model has the advantages that make can the regulating and controlling sidewall and the seal clearance of sub-propeller, improve the reliability of the dynamic seal (packing) of water pump, make pump can guarantee also that through long-time running sealing is stable.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with drawings and Examples the utility model is elaborated,
Embodiment
Comprise rotating shaft 1, sub-propeller 2, water pump sidewall 3, axle sleeve 4 among the figure, it is characterized in that: axis hole 5 is arranged on water pump sidewall 3, one cover plate 6 is arranged on the axis hole 5, cover plate 6 has through hole 7, transfer screw 8 is arranged in the through hole 7, cover plate 6 peripheral end faces and water pump sidewall 3 have seal ring 9, have bolt 10 to connect water pump sidewall 3 on the cover plate 6.Through hole 7 on the cover plate 6 has three at least.Bolt 10 on the cover plate 6 has three at least.Sub-propeller 2 positions are fixing during assembling, twist one group of transfer screw 8 earlier cover plate 6 and sub-propeller 2 are adjacent to, and regulate the gap of 6 of sub-propellers 2 and cover plates by other one group of transfer screw 8, use nut 11 lock bolts 10 at last again.This device can be fine the gap of control sub-propeller 2 and water pump sidewall 3, thereby make the unit sealing reliability obtain strict guarantee.
Claims (3)
1, do not have sealing vertical self-sucking pump adjustable sealing device, comprise rotating shaft, sub-propeller, water pump sidewall, axle sleeve,
It is characterized in that: on the water pump sidewall axis hole is arranged, a cover plate is arranged on the axis hole, cover plate has through hole, and the transfer screw is arranged in the through hole, and cover plate periphery end face and water pump sidewall have seal ring, has bolt to connect the water pump sidewall on the cover plate.
2, by the described nothing sealing of claim 1 vertical self-sucking pump adjustable sealing device, it is characterized in that: the through hole on the cover plate has three at least.
3, by the described nothing sealing of claim 1 vertical self-sucking pump adjustable sealing device, it is characterized in that: the bolt on the cover plate has three at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046071 CN2846820Y (en) | 2005-10-28 | 2005-10-28 | Adjustable seal device for sealless vertical self sucking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046071 CN2846820Y (en) | 2005-10-28 | 2005-10-28 | Adjustable seal device for sealless vertical self sucking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2846820Y true CN2846820Y (en) | 2006-12-13 |
Family
ID=37512243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520046071 Expired - Fee Related CN2846820Y (en) | 2005-10-28 | 2005-10-28 | Adjustable seal device for sealless vertical self sucking pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2846820Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840981A (en) * | 2012-09-07 | 2012-12-26 | 广东明阳风电产业集团有限公司 | Rear end sealing cover of wind generating set gear box test bed |
-
2005
- 2005-10-28 CN CN 200520046071 patent/CN2846820Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840981A (en) * | 2012-09-07 | 2012-12-26 | 广东明阳风电产业集团有限公司 | Rear end sealing cover of wind generating set gear box test bed |
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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: 20061213 Termination date: 20101028 |