CN2388377Y - Pre-shearing device of shear pump - Google Patents
Pre-shearing device of shear pump Download PDFInfo
- Publication number
- CN2388377Y CN2388377Y CN 99221881 CN99221881U CN2388377Y CN 2388377 Y CN2388377 Y CN 2388377Y CN 99221881 CN99221881 CN 99221881 CN 99221881 U CN99221881 U CN 99221881U CN 2388377 Y CN2388377 Y CN 2388377Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- shearing
- shear
- shear pump
- 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 discloses a pre-shearing device of a shear pump, which is characterized in that the position of a pump inlet corresponding to an impeller diameter is provided with a group of fixed blades 3, and the pump inlet is arranged at the proportioning position of the front end surface of an impeller 1 and the end surface of a suction port of a pump body 2. The utility model has the advantages that a pre-shearing is carried out on a shearing surface which is formed between the fixed blades and the impeller before mixing liquid with the need of shearing is sucked in, the blockage of an impeller channel and an impeller nozzle which is caused by direct suction in binding blocks of a polymer and other impurities by the shear pump is effectively overcome, the times of the shearing of liquid circulation can be reduced, and the application efficiency of the shear pump can be enhanced.
Description
The utility model belongs to the industrial pump kind equipment with shear agitation function, particularly the shear pump that uses during prepared polymer liquid in the drilling fluid that uses in the oil pit mining equipment.
The present drilling fluid shear pump that uses, it shears pulverization mechanism is mainly to rely on impeller nozzle and shearing disk to finish.Owing to need to dispose various polymer in the drilling fluid, and have some polymer to meet that water is easily swollen to rise, bond, lumps, perhaps sneak into fibrous material in the liquid, often cause impeller nozzle, runner to stop up or twine faults such as shearing disk, the lighter makes the decrease in efficiency of pump, weight person causes the shear pump cisco unity malfunction, has influence on the preparation of drilling fluid and incurs loss through delay the drilling well duration.The purpose of this utility model has been proposed for this reason.
The purpose of this utility model is in order to overcome the above-mentioned middle deficiency that exists, to provide a kind of shear pump pre-shearing device, stopping up and the wrapping phenomena generation to overcome.
The purpose of this utility model realizes according to structure described below, the pre-shearing device of this shear pump is characterized in that the Pump Suction Nozzle at cooperation position place of terminal surface of the suction port of the front-end face of impeller 1 and the pump housing 2 is provided with one group of fixed blade 3 with respect to the position of impeller diameter.
The utility model has the advantages that, when shear pump is worked, polymer in the liquid or bigger caking or fibrous matter are sheared in advance, are pulverized through the impeller inlet place earlier, enter impeller again and further shear refinement, prevented the obstruction of impeller channel and nozzle effectively, reduce the cycle-index of wellbore fluid when preparation liquid in shear pump, improved the shear effect and the working efficiency of shear pump.
The following drawings explanation, accompanying drawing 1 is the assembly structure figure of pre-shearing device of the present utility model, accompanying drawing 2 is that A in the accompanying drawing 1 is to view, accompanying drawing 3 is the B-B revolved views in the accompanying drawing 2, the meaning of each sequence number in the accompanying drawings is: 1, impeller, 2, the pump housing, 3, fixed blade.
Describe structure of the present utility model and use in detail below in conjunction with the specific embodiment in the accompanying drawing.With reference to accompanying drawing, the pre-shearing device of this shear pump is characterized in that the Pump Suction Nozzle at cooperation position place of terminal surface of the suction port of the front-end face of impeller 1 and the pump housing 2 is provided with one group of fixed blade 3 with respect to the position of impeller diameter.Fixed blade 3 is fixed on the appropriate location that the pump housing 2 is decided suction port, generally is distributed on the diametrical position with respect to impeller 1, and the cutting edge of fixed blade is sheared with the blade tip formation of impeller, as shown in accompanying drawing 3 towards the direction of impeller rotation.During work, the impeller high speed rotating, caking in the liquid of suction and fiber substance after the pre-shearing that forms between impeller front end and the fixed blade, enter impeller, arrive shearing disk.Then, another part enters into the impeller nozzle, returns shearing disk again, because at the material of inlet's bulk shearing-crushing in advance, so this device can improve the shearing work efficiency of pump.
Claims (1)
1, the pre-shearing device of a kind of shear pump is characterized in that the Pump Suction Nozzle at cooperation position place of terminal surface of the suction port of the front-end face of impeller 1 and the pump housing 2 is provided with one group of fixed blade 3 with respect to the position of impeller diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221881 CN2388377Y (en) | 1999-08-06 | 1999-08-06 | Pre-shearing device of shear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221881 CN2388377Y (en) | 1999-08-06 | 1999-08-06 | Pre-shearing device of shear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2388377Y true CN2388377Y (en) | 2000-07-19 |
Family
ID=34012375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99221881 Expired - Fee Related CN2388377Y (en) | 1999-08-06 | 1999-08-06 | Pre-shearing device of shear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2388377Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419271C (en) * | 2004-04-07 | 2008-09-17 | 弗里德科股份公司 | Screw-centrifugal pump |
| CN100434718C (en) * | 2004-02-16 | 2008-11-19 | 威乐股份公司 | Cutting tool pertaining to a centrifugal pump |
| CN110541830A (en) * | 2019-08-28 | 2019-12-06 | 中国计量大学 | Self-suction sewage pump with double-opening ring seal |
| CN110779587A (en) * | 2019-10-31 | 2020-02-11 | 孙安杰 | Flow meter |
-
1999
- 1999-08-06 CN CN 99221881 patent/CN2388377Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434718C (en) * | 2004-02-16 | 2008-11-19 | 威乐股份公司 | Cutting tool pertaining to a centrifugal pump |
| CN100419271C (en) * | 2004-04-07 | 2008-09-17 | 弗里德科股份公司 | Screw-centrifugal pump |
| CN110541830A (en) * | 2019-08-28 | 2019-12-06 | 中国计量大学 | Self-suction sewage pump with double-opening ring seal |
| CN110779587A (en) * | 2019-10-31 | 2020-02-11 | 孙安杰 | Flow meter |
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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 |