CN204327512U - Vertical two-stage self-priming pump - Google Patents
Vertical two-stage self-priming pump Download PDFInfo
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- CN204327512U CN204327512U CN201420699508.0U CN201420699508U CN204327512U CN 204327512 U CN204327512 U CN 204327512U CN 201420699508 U CN201420699508 U CN 201420699508U CN 204327512 U CN204327512 U CN 204327512U
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- housing
- impeller
- pump
- upper cover
- cavity
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Abstract
Vertical two-stage self-priming pump, comprise pump shaft, bearing housing, bearing housing is fixedly connected with upper cover, and impeller is equipped with through after upper cover center hole in pump shaft termination, upper cover is connected with housing, secondary stator is connected with successively from upper cover place in housing, pump cover, first-level guide blade and end cap, end cap periphery connects with housing, in pump shaft termination, first stage impeller is installed, first stage impeller is positioned at the inner chamber of first-level guide blade and pump cover formation, pump shaft is provided with secondary impeller, secondary impeller is positioned at the inner chamber of pump cover and the formation of secondary stator, upper cover, housing, first-level guide blade, end cap forms the first cavity, secondary stator and upper cover form the second cavity, adapter cavity is had in the outside of housing, housing is connected to the exhaust port be communicated with secondary impeller, housing has outlet and entrance, first stage impeller is successively by the hole in first-level guide blade, first cavity, outlet, adapter cavity, entrance, second cavity, secondary impeller is communicated with exhaust port.This pump can improve working pressure, uses to meet the occasion with certain system pressure.
Description
Technical field
The utility model relates to a kind of pump, particularly a kind of vertical two-stage self-priming pump.
Background technique
Existing vertical self-sucking pump comprises the pump housing, has impeller, stator in the pump housing, and impeller is arranged on pump shaft, and pump shaft is arranged in bearing housing by bearing, and the pump housing is fixedly connected with bearing housing.This pump structure is single impeller, i.e. single-stage pump, and the pressure medium that during operation, pump provides is limited.
Summary of the invention
The purpose of this utility model is to provide the vertical two-stage self-priming pump that a kind of structure is simple, bilobed wheel is installed in series mutually, form twin-stage pressurization, improve pump work pressure in the geostationary situation of flow, overcomes the deficiencies in the prior art.
Vertical two-stage self-priming pump of the present utility model, comprise the pump shaft be arranged on by bearing on bearing housing, bearing housing is fixedly connected with upper cover, and the termination of described pump shaft is installed with impeller through after the center hole of described upper cover, described upper cover is fixedly connected with housing, be fixedly connected sequentially from upper cover place in housing secondary stator, pump cover, first-level guide blade and end cap, the periphery of end cap connects with described housing, in the termination of pump shaft, first stage impeller is installed, first stage impeller is positioned in the inner chamber of first-level guide blade and pump cover formation, pump shaft is provided with secondary impeller, secondary impeller is positioned in the inner chamber of pump cover and the formation of secondary stator, upper cover, housing, first-level guide blade, end cap forms the first cavity, secondary stator and upper cover form the second cavity, adapter cavity is had in the outside of housing, housing is connected to exhaust port, exhaust port is communicated with secondary impeller, housing has outlet and entrance, first stage impeller is successively by the hole in first-level guide blade, first cavity, outlet, adapter cavity, entrance, second cavity, secondary impeller is communicated with described exhaust port.
Vertical two-stage self-priming pump of the present utility model, owing to there being both stage impellers, can improve pump work pressure when flow is constant during operation, uses to meet the occasion with certain system pressure.
This vertical two-stage self-priming pump, each impeller is all furnished with stator, adopt bilobed wheel Back-to-back installation, the axial force direction of two impeller generations is contrary, cancel out each other, it is less that the axial force acted on bearing compares the axial force that single-stage impeller produces, and reduces bearing temperature, extends bearing working life.
This vertical two-stage self-priming pump optimizes structural design, eliminates the balancing drum balance set structure of classical tandem impeller type multistage pump, reduces number of spare parts, reduces rate of fault, reduces costs.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment structural representation.
Embodiment
As shown in Figure 1: vertical two-stage self-priming pump of the present utility model comprises the pump shaft 1 be arranged on by bearing on bearing housing 2, and bearing housing 2 has been bolted to connection upper cover 3.The termination of pump shaft 1 is installed with impeller through after the center hole of upper cover 3.
Upper cover 3 is fixedly connected with housing 8, and be bolted to connection secondary stator 6, pump cover 9, first-level guide blade 13 and end cap 12 successively from upper cover 3 place in housing 8, the periphery of end cap 12 connects with housing 8 bottom periphery.Be provided with first stage impeller 14 in the termination of pump shaft 1, first stage impeller 14 is positioned in the inner chamber of first-level guide blade 13 and pump cover 9 formation, and pump shaft 1 is provided with secondary impeller 15, and secondary impeller 15 is positioned in the inner chamber of pump cover 9 and secondary stator 6 formation.Upper cover 9, housing 8, first-level guide blade 13, end cap 12 form the first cavity 11, secondary stator 6 and upper cover 3 form the second cavity 4, adapter cavity 7 is had in the outside of housing 8, housing 8 is connected to exhaust port 16, exhaust port 16 is communicated with secondary impeller 15, housing 8 has outlet 10 and entrance 5, and first stage impeller 14 is communicated with described exhaust port 16 by the hole in first-level guide blade 13, the first cavity 11, outlet 10, adapter cavity 7, entrance 5, second cavity 4, secondary impeller 15 successively.
Claims (1)
1. a vertical two-stage self-priming pump, comprise the pump shaft (1) be arranged on by bearing on bearing housing (2), bearing housing (2) is fixedly connected with upper cover (3), and the termination of described pump shaft (1) is installed with impeller through after the center hole of described upper cover (3);
It is characterized in that: described upper cover (3) is fixedly connected with housing (8), be fixedly connected sequentially from upper cover (3) place in housing (8) secondary stator (6), pump cover (9), first-level guide blade (13) and end cap (12), the periphery of end cap (12) connects with described housing (8), in the termination of pump shaft (1), first stage impeller (14) is installed, first stage impeller (14) is positioned in the inner chamber that first-level guide blade (13) and pump cover (9) formed, pump shaft (1) is provided with secondary impeller (15), secondary impeller (15) is positioned in the inner chamber that pump cover (9) and secondary stator (6) formed, upper cover (9), housing (8), first-level guide blade (13), end cap (12) forms the first cavity (11), secondary stator (6) and upper cover (3) form the second cavity (4), adapter cavity (7) is had in the outside of housing (8), housing (8) is connected to exhaust port (16), exhaust port (16) is communicated with secondary impeller (15), housing (8) has outlet (10) and entrance (5), first stage impeller (14) is successively by the hole in first-level guide blade (13), first cavity (11), outlet (10), adapter cavity (7), entrance (5), second cavity (4), secondary impeller (15) is communicated with described exhaust port (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699508.0U CN204327512U (en) | 2014-11-20 | 2014-11-20 | Vertical two-stage self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699508.0U CN204327512U (en) | 2014-11-20 | 2014-11-20 | Vertical two-stage self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327512U true CN204327512U (en) | 2015-05-13 |
Family
ID=53163879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420699508.0U Active CN204327512U (en) | 2014-11-20 | 2014-11-20 | Vertical two-stage self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233635A (en) * | 2022-02-10 | 2022-03-25 | 浙江水泵总厂有限公司 | Pump body structure and centrifugal pump with same |
-
2014
- 2014-11-20 CN CN201420699508.0U patent/CN204327512U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233635A (en) * | 2022-02-10 | 2022-03-25 | 浙江水泵总厂有限公司 | Pump body structure and centrifugal pump with same |
| WO2023151114A1 (en) * | 2022-02-10 | 2023-08-17 | 浙江水泵总厂有限公司 | Pump body structure and centrifugal pump having same |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |