CN2849238Y - Well column type installed under water sloping flow pump - Google Patents
Well column type installed under water sloping flow pump Download PDFInfo
- Publication number
- CN2849238Y CN2849238Y CNU2005200437541U CN200520043754U CN2849238Y CN 2849238 Y CN2849238 Y CN 2849238Y CN U2005200437541 U CNU2005200437541 U CN U2005200437541U CN 200520043754 U CN200520043754 U CN 200520043754U CN 2849238 Y CN2849238 Y CN 2849238Y
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- China
- Prior art keywords
- pit shaft
- utility
- pump
- model
- impeller
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a submerged water sloping flow pump arranged in a well-cylinder type which comprises a suction bell mouth, an impeller, a guide blade body, an upper and a lower mechanical seal devices, an oil chamber, a thrust roller bearing, a submerged motor, a lifting device and a cable. The external sides of the components are surrounded to accommodate a well cylinder. The suction bell mouth is connected with the guide blade body by a bolt, and the external surface of the guide blade body is provided with a conical surface matching with a supporting seat. The exit edge of the impeller is in a tilting shape. The impeller and the guide blade of the utility model is designed according to a sloping flow pump, therefore the flow condition is improved. The efficiency is increased by 5% to 10%. The head curve of the flow rate has no hump, the shaft power is reduced in the small flow zone and the utility model has favorable cavitation performance in the high flow rate zone. The high efficiency zone of the sloping flow pump is wider than an axial flow pump, and is a submerged water pump product with good performance. The utility model has the advantages of compact structure, good manufacturability of processing and assembly, convenient use and maintenance, high operational reliability and longer service life. The utility model is widely used as a power station circulating pump and a rain water pump for municipal water supply and sewerage work, drainage equipment, agricultural irrigation equipment, flood control work, etc.
Description
Background technique
The utility model relates to diagonal pumps, the diving diagonal pumps that particularly a kind of pit shaft formula is installed.
Background technique
The pump of existing specific speed more than 500 generally pressed the axial-flow pump design, and it is not wide to exist efficient district, and the flow lift curve has the shortcoming of hump, and it is fast to rise in small flow district air horsepower, and big flow district cavitation performance is poor.Submersible axial flow pump particularly, because the motor casing size is bigger, so the diffusion of diffuser is bigger, causes the efficient low 5%～10% of the efficient of submersible axial flow pump than vertical-type axial-flow pump.
Summary of the invention
Task of the present utility model provides the diving diagonal pumps that a kind of improved pit shaft formula is installed, it has solved, and the efficient district of existing axial-flow pump is not wide, and flow-head curve has hump, and the motor casing size is bigger, the diffusion of diffuser is bigger, causes the low problem of pump efficiency.
The technical solution of the utility model is as follows:
The diving diagonal pumps that a kind of pit shaft formula is installed, it comprises suction cone, impeller, diffuser, upper and lower mechanical seal, grease chamber, thrust roller bearing, submersible motor, lifting device and cable, the outside of described parts is crowded around a pit shaft is housed; Described suction cone is connected by bolt with diffuser; The outer surface of described diffuser has the conical surface that cooperates with supporting base; The outlet limit of described impeller is inclination shape.
Impeller of the present utility model and stator design according to diagonal pumps, have improved flox condition thus, raise the efficiency 5%～10%, and flow-head curve does not have hump, reduce air horsepower in the small flow district, have good cavitation performance in big flow district.The efficient district of these diagonal pumps is wideer than axial-flow pump, is a kind of submersible pump product of function admirable.
The diving diagonal pumps compact structure that pit shaft formula of the present utility model is installed, processing is good with assembly process process, use, easy to maintenance, the operational reliability height, have long working life, be widely used in power station recycle pump, rainwater pump, municipal water supply and sewage work, waste removal equipment, agricultural irrigation equipment and flood protection works etc.
Description of drawings
Fig. 1 is the structural representation of the diving diagonal pumps of a kind of pit shaft formula installation of the present utility model.
Fig. 2 is the dive under water structural representation of higher specific speed impeller of diagonal pumps of Fig. 1.
Fig. 3 is that Fig. 1 diagonal pumps of diving under water are installed the structural representation of steel pit shaft.
Fig. 4 is that Fig. 1 diagonal pumps of diving under water are installed the structural representation of concrete system pit shaft.
Embodiment
Referring to Fig. 1, the diving diagonal pumps that a kind of pit shaft formula of the present utility model is installed are equipped with suction cone 1, impeller 2, diffuser 7, upward mechanical seal 3, mechanical seal 5 down, thrust roller bearing 4, submersible motor 8, lifting device 9 and cable 10.Be provided with the E of grease chamber in the diffuser 7.
Suction cone 1 and diffuser 7 are connected by bolt.The outer surface of diffuser 7 has the conical surface that cooperates with supporting base.Be provided with the mounting groove that can adorn O RunddichtringO 6 on the cooperation conical surface of diffuser 7, installing in mounting groove can be from the O RunddichtringO 6 of motive sealing coupling installation.
Referring to Fig. 2, obtain higher specific speed for making this diving diagonal pumps, the spy makes following design:
The outlet limit 21 of impeller 2 is inclination shape, because its inclination angle is relevant with specific speed.Impeller 2 outlets are not by waiting circular rector design, and circular rector distributes by Optimal Distribution.The absolute velocity on impeller 2 outlet limits 21, as two sections of AB, BC among the figure, its flow pattern index is the index whirlpool between 1～2.Impeller 2 into and out of bicker by reducing air horsepower in the small flow district, helping improving net positive suction head in big flow district and choose.Stator is pressed the spatial guide blade design of diagonal pumps or mixed flow pump.
The utility model just can be eliminated the hump of flow-head curve according to as above design, avoids producing irregular operation, in the small flow district air horsepower increase slower, still have cavitation performance preferably in flow district greatly.These diagonal pumps have wideer efficient district than axial-flow pump.Specific speed of the present utility model reaches as high as 1200.
Referring to Fig. 3, crowd around in the outside of above-mentioned parts a steel pit shaft 12 is housed, in the steel pit shaft 12 supporting base is housed, this supporting base and steel pit shaft 12 can be made into one.Have one to cooperate the conical surface between steel pit shaft 12 and the diffuser 7, mounting groove and O RunddichtringO 6 be set on the cooperation conical surface of diffuser 7, during installation by means of O RunddichtringO 6 coupling sealing automatically.Number in the figure 10 is cable and fixing device.
Referring to Fig. 4, crowd around in the outside of above-mentioned parts a concrete system pit shaft 13 is housed.Diffuser 7 has a conical surface that cooperates with the supporting base 14 of concrete system pit shaft 13, and mounting groove and O RunddichtringO 6 are set on the cooperation conical surface of diffuser 7 or supporting base 14, relies on O RunddichtringO 6 coupling sealing automatically during installation.Number in the figure 10 is cable and fixing device.
Claims (6)
1. the diving diagonal pumps installed of a pit shaft formula, it comprises suction cone, impeller, diffuser, upper and lower mechanical seal, grease chamber, thrust roller bearing, submersible motor, lifting device and cable, it is characterized in that the outside of described parts is crowded around a pit shaft is housed; Described suction cone is connected by bolt with diffuser; The outer surface of described diffuser has the conical surface that cooperates with supporting base; The outlet limit of described impeller is inclination shape.
2. the diving diagonal pumps that pit shaft formula according to claim 1 is installed is characterized in that the cooperation conical surface of described diffuser is provided with the mounting groove that can adorn the O RunddichtringO.
3. the diving diagonal pumps that pit shaft formula according to claim 2 is installed is characterized in that, the O RunddichtringO of installing from the motive sealing coupling is housed in the described mounting groove.
4. the diving diagonal pumps that pit shaft formula according to claim 1 is installed is characterized in that described pit shaft is the steel pit shaft.
5. the diving diagonal pumps that pit shaft formula according to claim 1 is installed is characterized in that described pit shaft is a concrete system pit shaft.
6. the diving diagonal pumps that pit shaft formula according to claim 1 is installed is characterized in that the specific speed of described pump is higher specific speed pump greater than 500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200437541U CN2849238Y (en) | 2005-07-26 | 2005-07-26 | Well column type installed under water sloping flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200437541U CN2849238Y (en) | 2005-07-26 | 2005-07-26 | Well column type installed under water sloping flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849238Y true CN2849238Y (en) | 2006-12-20 |
Family
ID=37521722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200437541U Expired - Fee Related CN2849238Y (en) | 2005-07-26 | 2005-07-26 | Well column type installed under water sloping flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849238Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614214B (en) * | 2009-06-10 | 2012-05-30 | 吴为国 | Floating water pump of water cooling motor |
| CN106678048A (en) * | 2017-01-17 | 2017-05-17 | 长沙海德普尔泵业有限责任公司 | Large-flow portable hydraulic diagonal flow pump |
-
2005
- 2005-07-26 CN CNU2005200437541U patent/CN2849238Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614214B (en) * | 2009-06-10 | 2012-05-30 | 吴为国 | Floating water pump of water cooling motor |
| CN106678048A (en) * | 2017-01-17 | 2017-05-17 | 长沙海德普尔泵业有限责任公司 | Large-flow portable hydraulic diagonal flow pump |
| CN106678048B (en) * | 2017-01-17 | 2022-09-02 | 长沙海德普尔泵业有限责任公司 | Large-traffic portable hydraulic pressure diagonal flow pump |
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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 |