CN2295067Y - Device for regulating clearance between deep-well pump impeller and turbine cylinder - Google Patents
Device for regulating clearance between deep-well pump impeller and turbine cylinder Download PDFInfo
- Publication number
- CN2295067Y CN2295067Y CN 96245163 CN96245163U CN2295067Y CN 2295067 Y CN2295067 Y CN 2295067Y CN 96245163 CN96245163 CN 96245163 CN 96245163 U CN96245163 U CN 96245163U CN 2295067 Y CN2295067 Y CN 2295067Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- bearing
- pump
- adjusting nut
- clearance
- 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 a device used for regulating clearance between an impeller and a scroll case of a submerged pump. The utility model is characterized in that a water out shell and the end part of a pump shaft are provided with a bearing seat, a bearing and a regulating nut; the pump shaft can be lifted by the bearing seat, the bearing and the adjusting nut so as to ensure designed clearance between the impeller and the scroll case to avoid contact wear is produced between the impeller and the scroll case, obtaining the goals of saving power, reducing consumption, improving pump efficiency and extending the service life of the submersible pump. The device can be used for regulating the clearance between the impeller and the scroll case of the submerged pump in QJ series, and can be matched with the submersible pump.
Description
The utility model relates to a kind of submersible pump impeller and volute relative gap controlling device, belongs to a kind of of submersible pump slack adjuster.
At present, QJ series diving pump structure generally is that the motor and the pump housing are made of one, and motor is following, and the pump housing is last, and the design axial clearance of impeller and volute is little, the theoretical efficiency height; In fact, the axial force that acts on during pump work on the impeller sets passes on the thrust button by axle, the friction pair of being made up of umbrella shape piece and thrust button wear and tear in high speed rotating under responsive to axial force gradually, impeller descends with axle, so impeller is very fast and turbine comes in contact wearing and tearing, power consumption increase on the one hand, efficient reduce the working life of also having reduced submersible pump on the other hand.Up to the present, on submersible pump, also do not see the device that to regulate impeller and turbine relative gap.
The purpose of this utility model is exactly the controlling device that a kind of submersible pump impeller and volute relative gap are provided at above-mentioned the deficiencies in the prior art.
The utility model reaches by the following technical programs: this controlling device is by going out water hull and the pump shaft end constitutes, it is characterized in that: be placed on the pump shaft and the bearing support inside of seat in going out water hull has shoulder hole, it is built-in with seal ring, bearing shim and bearing, the bearing upper end holds out against with pad and adjusting nut, be provided with locking nail between adjusting nut and the pad, the bearing support upper end is to scribble sealer on be threaded case and the screw thread.
Above-mentioned submersible pump impeller and volute relative gap controlling device all have a plurality of holes that screw in locking nail on its adjusting nut and the pad.
The utility model has following advantage than prior art: owing to going out water hull and the pump shaft end is equipped with bearing support and adjusting nut, therefore after wearing and tearing between umbrella shape piece and thrust button, impeller descend with pump shaft, can pump shaft and impeller be mentioned by screwing adjusting nut, thereby guarantee the relative gap of impeller and volute, prevent that impeller and volute from coming in contact wearing and tearing, reach energy-saving and cost-reducing, raise the efficiency, prolong the submersible pump purpose in working life.
Accompanying drawing 1 is a structural drawing of the present utility model;
Accompanying drawing 2 is the utility model and the erection drawing that goes out water hull.
The utility model is described in further detail below in conjunction with accompanying drawing: shown by Fig. 1 and Fig. 2, this controlling device is to constitute in the end that goes out water hull 11 and pump shaft 10, be placed on the pump shaft 10 and bearing support 2 inside of seat in going out water hull 11 have shoulder hole, place " Y " shape seal ring 9 in the hole successively, bearing shim 8 and bearing 7, bearing 7 upper ends hold out against with pad 6 and adjusting nut 4, be provided with locking nail 5 between adjusting nut 4 and the pad 6, in the bearing 7, all scribble lubricating grease between the annular space of adjusting nut 4 and bearing support 2, bearing support 2 upper ends are equipped with a plurality of holes of adorning locking nail 5 to scribble sealer 3 on be threaded case 1 and the screw thread on adjusting nut 4 and the pad 6.
After submersible pump uses a period of time, the friction pair that umbrella shape piece and thrust button are formed wear and tear, impeller descends with pump shaft, can cause impeller and volute to come in contact wearing and tearing this moment, uses this controlling device to unload locking nail 5, screws adjusting nut 4 with spanner, determine to screw the number of turns according to abrasion condition, slightly loose half-turn screws in locking nail 5 to the hole of good adjusting nut 4 and pad 6 after tightening, and has promptly finished the adjusting of impeller and volute relative gap.
Claims (2)
1, a kind of submersible pump impeller and volute relative gap controlling device, constitute by going out water hull (11) and pump shaft (10) end, it is characterized in that: be placed in bearing support (2) inside of the last also seat of pump shaft (10) in going out water hull (11) and have shoulder hole, the hole is built-in with seal ring (9), bearing shim (8) and bearing (7), bearing (7) upper end holds out against with pad (6) and adjusting nut (4), be provided with locking nail (5) between adjusting nut (4) and the pad (6), bearing support (2) upper end is to scribble sealer (3) on case that is threaded (1) and the screw thread.
2, submersible pump impeller according to claim 1 and volute relative gap controlling device is characterized in that: be equipped with a plurality of holes that screw in locking nail (5) on adjusting nut (4) and the pad (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96245163 CN2295067Y (en) | 1996-11-04 | 1996-11-04 | Device for regulating clearance between deep-well pump impeller and turbine cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96245163 CN2295067Y (en) | 1996-11-04 | 1996-11-04 | Device for regulating clearance between deep-well pump impeller and turbine cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2295067Y true CN2295067Y (en) | 1998-10-21 |
Family
ID=33918332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96245163 Expired - Fee Related CN2295067Y (en) | 1996-11-04 | 1996-11-04 | Device for regulating clearance between deep-well pump impeller and turbine cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2295067Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160097266A1 (en) * | 2012-02-08 | 2016-04-07 | Ormat Technologies, Inc. | Apparatus and method for preventing damage to a downhole pump impeller |
-
1996
- 1996-11-04 CN CN 96245163 patent/CN2295067Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160097266A1 (en) * | 2012-02-08 | 2016-04-07 | Ormat Technologies, Inc. | Apparatus and method for preventing damage to a downhole pump impeller |
| US9631465B2 (en) * | 2012-02-08 | 2017-04-25 | Ormat Technologies, Inc. | Apparatus and method for preventing damage to a downhole pump impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |