CN202746294U - High-self-sucking centrifugal pump - Google Patents
High-self-sucking centrifugal pump Download PDFInfo
- Publication number
- CN202746294U CN202746294U CN 201220385552 CN201220385552U CN202746294U CN 202746294 U CN202746294 U CN 202746294U CN 201220385552 CN201220385552 CN 201220385552 CN 201220385552 U CN201220385552 U CN 201220385552U CN 202746294 U CN202746294 U CN 202746294U
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- liquid outlet
- volute
- centrifugal pump
- self
- pump
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Abstract
The utility model discloses a high-self-sucking centrifugal pump, which comprises a pump body 1, wherein a liquid inlet 2 and a liquid outlet 3 are arranged on the pump body 1, an impeller 4 driven by an electric motor is also arranged in the pump body 1 and is arranged in a volute casing 5, and an outlet of the volute casing 5 is communicated with the liquid outlet 3. The high-self-sucking centrifugal pump is characterized in that the volute casing 5 is in a round shape, an annular flow passage 6 is arranged in the volute casing 5, one side of the communicated part of the volute casing 5 and the liquid outlet 3, near the annular flow passage 6 is provided with a backflow groove 7, and the backflow groove 7 is communicated with the liquid outlet 3 and the annular flow passage 6. The utility model belongs to the high-self-sucking centrifugal pump with the advantages that the structure is simple, the design is ingenious, the layout is reasonable, the sealing performance is good, and the energy utilization rate is higher.
Description
Technical field
The utility model relates to a kind of centrifugal pump, particularly a kind of forced self suction centrifugal pump.
Background technique
Self-priming pump is a kind of of pump, and its working principle is: fill first water (or self has water in the pump case) before pump startup in pump case.The impeller High Rotation Speed makes the current direction volute in the impeller conduit, at this moment enters the interruption-forming vacuum, in the air intake pump in the suction pipe, and arrives the outer rim of volute through the impeller conduit, and discharges by liquid outlet.Self-priming pump belongs to self priming centrifugal pump, although it have compact structure, easy to operate, operate steadily, safeguard easily, etc. advantage, but still come with some shortcomings.Be not to be in all the time among the liquid such as seal ring in the using process, thereby cause sealability to be affected, and spiral volute design, so that among current need to be thrown to liquid outlet from the inner side of volute, the stroke of part current is longer, has expended certain energy.Therefore need now a kind of New Centrifugal Pump that can address the above problem.
Summary of the invention
The utility model is in order to solve the existing above-mentioned deficiency of prior art, propose a kind of simple in structure, design ingenious, rationally distributed, good seal performance, the forced self suction centrifugal pump that capacity usage ratio is higher.
Technical solution of the present utility model is: a kind of forced self suction centrifugal pump, comprise the pump housing 1, be provided with liquor inlet 2 and liquid outlet 3 on the pump housing 1, in the pump housing 1, also be provided with the impeller 4 by driven by motor, impeller 4 is arranged in the volute 5, the outlet of volute 5 communicates with liquid outlet 3, it is characterized in that: described volute 5 is rounded, be provided with ring runner 6 in it, the part that communicates with liquid outlet 3 at volute 5, side near ring runner 6 offers back flash 7, and back flash 7 is communicated with liquid outlet 3 and ring runner 6.
The utility model is compared with prior art, has following advantage:
The forced self suction centrifugal pump of this kind of structural type, it is simple in structure, designs ingenious, rationally distributed, it is in traditional centrifugal pump impeller rotation process, it is not very smooth and easy that current reflux, and causing seal ring is not constantly to be under the liquid package status, affects the defective of its sealability, between volute and liquid outlet, offer the back flash that stream is flowed back in a water supply, water body also can be back to the seal ring place under the effect of deadweight after entering liquid outlet like this, guarantees that seal ring is immersed among the liquid constantly.And it has also made improvement to the shape of volute, changes approximate just round annular into by original spirality, and the volute both sides are stressed evenly like this, save energy.And the preparation process of this centrifugal pump is simple, and is cheap for manufacturing cost, can say that it has possessed multiple advantage, is particularly suitable for and applies in the art, and its market prospects are very wide.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Fig. 2 is the A section enlarged view of Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment volute part.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.Such as Fig. 1, Fig. 2, shown in Figure 3: a kind of forced self suction centrifugal pump, comprise the pump housing 1, be respectively arranged with liquor inlet 2 and liquid outlet 3 at the pump housing 1, also be provided with the impeller 4 by driven by motor in the pump housing 1, impeller 4 is arranged in volute 5, the outlet of volute 5 communicates with liquid outlet 3, volute 5 is rounded, is provided with ring runner 6 in it, the part that communicates with liquid outlet 3 at volute 5, side near ring runner 6 offers back flash 7, and namely back flash 7 is communicated with liquid outlet 3 and ring runner 6 get up.
The working procedure of the utility model embodiment's forced self suction centrifugal pump is as follows: impeller 4 rotates under the drive of motor, in the process of rotating, to be thrown in the ring runner 6 of volute 5 by the chute on the impeller from the liquid that liquor inlet 2 sucks, under the effect of hydraulic pressure, Bas Discharged in the volute 5, liquid also can enter by the outlet of volute 5 upper ends among the liquid outlet 3, and a part of liquid flow back among the ring runner 6 by back flash 7, to guarantee that seal ring can be immersed among the liquid all the time, to keep good sealability; Simultaneously the cross section for approximate just round ring runner 6 can also the balance current impact force, utilize better impeller 2 to rotate the kinetic energy that produces.
Claims (1)
1. forced self suction centrifugal pump, comprise the pump housing (1), be provided with liquor inlet (2) and liquid outlet (3) on the pump housing (1), in the pump housing (1), also be provided with the impeller (4) by driven by motor, impeller (4) is arranged in the volute (5), the outlet of volute (5) communicates with liquid outlet (3), it is characterized in that: described volute (5) is rounded, be provided with ring runner (6) in it, the part that communicates with liquid outlet (3) at volute (5), side near ring runner (6) offers back flash (7), and back flash (7) is communicated with liquid outlet (3) and ring runner (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385552 CN202746294U (en) | 2012-08-06 | 2012-08-06 | High-self-sucking centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385552 CN202746294U (en) | 2012-08-06 | 2012-08-06 | High-self-sucking centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746294U true CN202746294U (en) | 2013-02-20 |
Family
ID=47705695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220385552 Expired - Lifetime CN202746294U (en) | 2012-08-06 | 2012-08-06 | High-self-sucking centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746294U (en) |
-
2012
- 2012-08-06 CN CN 201220385552 patent/CN202746294U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |