CN202707596U - Two-stage impeller for pre-heating water pump - Google Patents
Two-stage impeller for pre-heating water pump Download PDFInfo
- Publication number
- CN202707596U CN202707596U CN 201220285127 CN201220285127U CN202707596U CN 202707596 U CN202707596 U CN 202707596U CN 201220285127 CN201220285127 CN 201220285127 CN 201220285127 U CN201220285127 U CN 201220285127U CN 202707596 U CN202707596 U CN 202707596U
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- China
- Prior art keywords
- impeller
- stage impeller
- stage
- final
- impellers
- 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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- 239000008236 heating water Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a two-stage impeller for a pre-heating water pump. The two-stage impeller comprises a first-stage impeller and a final-stages impeller. The two-stage impeller is similarly J-shaped. A front lining plate is arranged on one end of the first-stage impeller and guide blades are arranged on the other end of the first-stage impeller. An impeller spacing sleeve is arranged in cavities of the guide blades and the final-stages impeller. Two ends of the guide blades are respectively provided with a first-stage impeller and a final-stage impeller. The other end of the final-stage impeller is provided with a rear lining plate. Due to the defects of a high lift, a large diameter of a single-stage impeller, low efficiency and the like, the two-stage impeller is designed and adopted, the first-stage impeller is designed mainly based on affection of cavitation and the second-stage impeller is designed based on improvement of pressure. The separate design not only meets the requirement for cavitation, but also improves pump efficiency which can reach a maximum of 75%. Two impellers both are provided with back blades. The back blades are used to balance axial thrust and reduce leakage pressure of media in the axial direction so that reliability of sealing is improved and service life is prolonged.
Description
Technical field:
The utility model relates to the preheating water impeller of pump, particularly can improve the reliability of sealing and the preheating water pump both stage impellers in working life.
Background technique:
Impeller on the market all is the single-stage impeller basically now, and its diameter is larger, renders a service low.Common impeller does not have good solid particle passing capacity, and be unfavorable for containing solid medium pass through can produce blocking phenomenon.Common impeller does not adopt back blade, thereby has reduced reliability and the working life of sealing.
Summary of the invention:
The purpose of this utility model will provide preheating water pump both stage impellers exactly, can solve the existing problem of above product.
The purpose of this utility model is achieved in that preheating water pump both stage impellers, comprises first stage impeller and impeller, it is characterized in that: both stage impellers is divided into first stage impeller and impeller, and both stage impellers is similar to the J type of capitalization; First stage impeller one end is provided with front liner plate, the other end of first stage impeller is provided with stator, be provided with between impeller cover in the inner chamber of stator and impeller and be fixed on the pump shaft, the two ends of stator are respectively arranged with first stage impeller and impeller, and the other end of impeller is provided with rear lining plate.
Because lift is higher, adopt the single-stage impeller diameter larger, render a service the shortcomings such as low, both stage impellers is adopted in design, and first stage impeller is mainly considered the cavitation impact, and sencond stage impeller considers to improve pressure, so separately design is not only satisfied the requirement of net positive suction head but also has been improved pump efficiency, and peak efficiency reaches 75%; Two impellers are equipped with back blade, and back blade balancing axial thrust and reduction medium are at axial leakage pressure, to improve reliability and the working life of sealing.
Description of drawings:
Fig. 1 is the utility model structural representation.
1, first stage impeller, 2, front liner plate, 3, stator, 4, impeller, 5, overlap between impeller, 6, rear lining plate.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing;
Preheating water pump both stage impellers comprises first stage impeller 1 and impeller 5, it is characterized in that: both stage impellers is divided into first stage impeller 1 and impeller 4, and both stage impellers is similar to the J type of capitalization; First stage impeller 1 one ends are provided with front liner plate 2, the other end of first stage impeller 1 is provided with stator 3, be provided with between impeller cover 5 in the inner chamber of stator 3 and impeller 4 and be fixed on the pump shaft, the two ends of stator 3 are respectively arranged with first stage impeller 1 and impeller 4, and the other end of impeller 4 is provided with rear lining plate 6.
During implementation, because lift is higher, adopt the single-stage impeller diameter larger, render a service the shortcomings such as low, both stage impellers is adopted in design, and first stage impeller is mainly considered the cavitation impact, sencond stage impeller considers to improve pressure, so separately design is not only satisfied the requirement of net positive suction head but also has been improved pump efficiency, and peak efficiency reaches 75%; Impeller has good solid particle passing capacity, is easy to especially the cleaning of crystallization medium, and is conducive to contain the unlikely generation blocking phenomenon of passing through of solid medium; Two impellers are equipped with back blade, and back blade balancing axial thrust and reduction medium are at axial leakage pressure, to improve reliability and the working life of sealing.
Claims (1)
1. preheating water pump both stage impellers comprises first stage impeller (1) and impeller (4), it is characterized in that: both stage impellers is divided into first stage impeller (1) and impeller (4), and both stage impellers is similar to the J type of capitalization; First stage impeller (1) one end is provided with front liner plate (2), the other end of first stage impeller (1) is provided with stator (3), be provided with between impeller cover (5) in the inner chamber of stator (3) and impeller (4) and be fixed on the pump shaft, the two ends of stator (3) are respectively arranged with first stage impeller (1) and impeller (4), and the other end of impeller (4) is provided with rear lining plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285127 CN202707596U (en) | 2012-06-18 | 2012-06-18 | Two-stage impeller for pre-heating water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285127 CN202707596U (en) | 2012-06-18 | 2012-06-18 | Two-stage impeller for pre-heating water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707596U true CN202707596U (en) | 2013-01-30 |
Family
ID=47587903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220285127 Expired - Fee Related CN202707596U (en) | 2012-06-18 | 2012-06-18 | Two-stage impeller for pre-heating water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828344A (en) * | 2020-08-06 | 2020-10-27 | 济宁安泰矿山设备制造有限公司 | A two-stage impeller submersible sewage pump |
-
2012
- 2012-06-18 CN CN 201220285127 patent/CN202707596U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828344A (en) * | 2020-08-06 | 2020-10-27 | 济宁安泰矿山设备制造有限公司 | A two-stage impeller submersible sewage pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU FEIYUE PUMP GROUP CO., LTD. Assignor: Jiangsu Feiyue Machine Pump Manufacturing Co., Ltd. Contract record no.: 2014320000303 Denomination of utility model: Two-stage impeller for pre-heating water pump Granted publication date: 20130130 License type: Exclusive License Record date: 20140415 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20190618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |