CN204646801U - Vertical centrifugal pump - Google Patents
Vertical centrifugal pump Download PDFInfo
- Publication number
- CN204646801U CN204646801U CN201520345286.7U CN201520345286U CN204646801U CN 204646801 U CN204646801 U CN 204646801U CN 201520345286 U CN201520345286 U CN 201520345286U CN 204646801 U CN204646801 U CN 204646801U
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- China
- Prior art keywords
- intake pipe
- centrifugal pump
- pump
- pump chamber
- vertical centrifugal
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Abstract
The utility model provides a kind of vertical centrifugal pump, belongs to pump technology field.It solve the problem that existing centrifugal pump starting time is long, working life is short.This vertical centrifugal pump, comprise motor and be positioned at the pump housing with intake pipe and water outlet below motor, in the pump housing, there is pump chamber, intake pipe is communicated with pump chamber respectively with water outlet, and the rotating shaft of motor stretches in pump chamber, rotating shaft is arranged with the impeller being positioned at pump chamber, the inner of intake pipe is positioned at the bottom of pump chamber, the outer end of intake pipe is upturned and forms warping part, and be formed with the receiving cavity for holding water between warping part and the inner of intake pipe, warping part place is provided with Anti-backflow structure.The utility model has short, the advantage such as long service life, reasonable in design starting time.
Description
Technical field
The utility model belongs to pump technology field, relates to a kind of vertical centrifugal pump.
Background technique
Existing vertical centrifugal pump impeller intake pipe is downward, and during work, medium is low in and high out by impeller, is produced a downward active force by the medium pumped to impeller.The weight of the moving elements such as impeller, pump shaft, motor rotor produces gravity downwards.These two power stack up and act on bearing, bearing axial load is strengthened, thus shortens the working life of bearing, and the increase of resistance also can make noise strengthen, consume electric power.In addition, because pump body is full of air, when water pump is just started working, motor dallies, and easily causes burn-down of electric motor, reduces the working life of centrifugal pump.In existing centrifugal pump, all Anti-backflow structure is not set, needs toward pump body water filling before water pump is opened, troublesome poeration.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, propose a kind of can the backflow of effectively anti-sealing, reasonable in design vertical centrifugal pump.
The purpose of this utility model realizes by following technical proposal:
This vertical centrifugal pump, comprise motor and be positioned at the pump housing with intake pipe and water outlet below motor, in the described pump housing, there is pump chamber, described intake pipe is communicated with pump chamber respectively with water outlet, the rotating shaft of described motor stretches in pump chamber, described rotating shaft is arranged with the impeller being positioned at pump chamber, it is characterized in that, the inner of described intake pipe is positioned at the bottom of pump chamber, the outer end of described intake pipe is upturned and forms warping part, the receiving cavity for holding water is formed between described warping part and the inner of intake pipe, described warping part place is provided with Anti-backflow structure.
In intake pipe, be provided with Anti-backflow structure, when centrifugal pump is opened, store water in receiving cavity and pump chamber, centrifugal pump can not be in idling conditions, improves the working life of centrifugal pump.Operationally without the need to toward water filling in pump chamber, reduce centrifugal pump from the time starting to stable operation, thus improve the working efficiency of water pump.
In above-mentioned vertical centrifugal pump, described Anti-backflow structure comprises the limited ring of being located at warping part place and is positioned at the plug of limited ring near the inner side of intake pipe, the middle part of described limited ring has the through hole arranged that to match with plug, described plug is hinged on intake pipe, and be provided with Returnning spring between described intake pipe and plug, at the effect lower end cap of this Returnning spring, there is the trend blocking through hole.
When centrifugal pump does not start, plug blocks through hole under the effect of Returnning spring, and the height of water outlet is higher than receiving cavity, and the water being positioned at receiving cavity and pump chamber can not reflux from intake pipe; After centrifugal pump starts, suction is greater than the elastic force of Returnning spring, and plug departs from through hole, and water flows through and enters in receiving cavity, then enters in pump chamber, is finally discharged by water outlet.
In above-mentioned vertical centrifugal pump, described limited ring and intake pipe are that cambered surface contacts.Limited ring and intake pipe adopt cambered surface to contact, and area of contact is large, good airproof performance, and frictional force is between the two large, and limited ring not easily loosens.
In above-mentioned vertical centrifugal pump, described plug is coniform.
In above-mentioned vertical centrifugal pump, described limited ring is also provided with in trumpet-shaped pod apertures, the smaller diameter end of described pod apertures is communicated with above-mentioned through hole.
In above-mentioned vertical centrifugal pump, the bottom of described receiving cavity is provided with dewatering orifice, is sealedly connected with blocking in described dewatering orifice.When the centrifugal pump permanent time does not use, blocking is opened, bleeds off the water being positioned at receiving cavity, make pump chamber inside be in drying regime, effectively extend the working life of centrifugal pump.
Compared with prior art, this vertical centrifugal pump has the following advantages:
Owing to being provided with Anti-backflow structure, when centrifugal pump is opened, store water in receiving cavity and pump chamber, centrifugal pump can not be in idling conditions, improves the working life of centrifugal pump; End starting time of centrifugal pump, effectively improves the working efficiency of water pump; Be provided with dewatering orifice in the bottom of receiving cavity, when centrifugal pump does not use for a long time, bleed off the water in receiving cavity, make centrifugal pump inside be in drying regime, not easily get rusty, effectively increase the service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of preferred embodiment that the utility model provides.
In figure, 1, motor; 2, the pump housing; 21, intake pipe; 22, water outlet; 23, pump chamber; 24, warping part; 25, receiving cavity; 26, dewatering orifice; 3, impeller; 4, limited ring; 41, pod apertures; 5, plug; 6, Returnning spring.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Vertical centrifugal pump as shown in Figure 1, the pump housing 2 with intake pipe 21 and water outlet 22 comprising motor 1 and be positioned at below motor 1, there is in the pump housing 2 pump chamber 23, intake pipe 21 is communicated with pump chamber 23 respectively with water outlet 22, the rotating shaft of motor 1 stretches in pump chamber 23, rotating shaft is arranged with the impeller 3 being positioned at pump chamber 23.
As shown in Figure 1, the inner of intake pipe 21 is positioned at the bottom of pump chamber 23, and the outer end of intake pipe 21 is upturned and forms warping part 24, and be formed with the receiving cavity 25 for holding water between the inner of warping part 24 and intake pipe 21, warping part 24 place is provided with Anti-backflow structure.
In intake pipe 21, be provided with Anti-backflow structure, when centrifugal pump is opened, store water in receiving cavity 25 and pump chamber 23, centrifugal pump can not be in idling conditions, improves the working life of centrifugal pump.Operationally without the need to toward water filling in pump chamber 23, reduce centrifugal pump from the time starting to stable operation, thus improve the working efficiency of water pump.
Concrete, as shown in Figure 1, Anti-backflow structure comprises the limited ring 4 of being located at warping part 24 place and is positioned at the plug 5 of limited ring 4 near the inner side of intake pipe 21, the middle part of limited ring 4 has the through hole arranged that to match with plug 5, plug 5 is hinged on intake pipe 21, and be provided with Returnning spring 6 between intake pipe 21 and plug 5, at the effect lower end cap 5 of this Returnning spring 6, there is the trend blocking through hole.
When centrifugal pump does not start, plug 5 blocks through hole under the effect of Returnning spring 6, and the height of water outlet 22 is higher than receiving cavity 25, and the water being positioned at receiving cavity 25 and pump chamber 23 can not reflux from intake pipe 21; After centrifugal pump starts, suction is greater than the elastic force of Returnning spring 6, and plug 5 departs from through hole, and water flows through and enters in receiving cavity 25, then enters in pump chamber 23, is finally discharged by water outlet 22.
In the present embodiment, as shown in Figure 1, limited ring 4 is with intake pipe 21 for cambered surface contacts, and limited ring 4 adopts cambered surface to contact with intake pipe 21, and area of contact is large, good airproof performance, and frictional force is between the two large, and limited ring 4 not easily loosens.
As shown in Figure 1, plug 5 is in coniform.
As shown in Figure 1, limited ring 4 is also provided with in trumpet-shaped pod apertures 41, the smaller diameter end of pod apertures 41 is communicated with through hole.
As shown in Figure 1, be provided with dewatering orifice 26 in the bottom of receiving cavity 25, in dewatering orifice 26, be sealedly connected with blocking, when the centrifugal pump permanent time does not use, blocking is opened, bleeds off the water being positioned at receiving cavity 25, make pump chamber 23 inside be in drying regime, effectively extend the working life of centrifugal pump.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (6)
1. a vertical centrifugal pump, comprise motor (1) and be positioned at the pump housing (2) with intake pipe (21) and water outlet (22) below motor (1), in the described pump housing (2), there is pump chamber (23), described intake pipe (21) is communicated with pump chamber (23) respectively with water outlet (22), the rotating shaft of described motor (1) stretches in pump chamber (23), described rotating shaft is arranged with the impeller (3) being positioned at pump chamber (23), it is characterized in that, the inner of described intake pipe (21) is positioned at the bottom of pump chamber (23), the outer end of described intake pipe (21) is upturned and forms warping part (24), the receiving cavity (25) for holding water is formed between described warping part (24) and the inner of intake pipe (21), described warping part (24) place is provided with Anti-backflow structure.
2. vertical centrifugal pump according to claim 1, it is characterized in that, described Anti-backflow structure comprises the limited ring (4) being located at warping part (24) place and the plug (5) being positioned at close intake pipe (21) the inner side of limited ring (4), the middle part of described limited ring (4) has the through hole arranged that to match with plug (5), described plug (5) is hinged on intake pipe (21), and be provided with Returnning spring (6) between described intake pipe (21) and plug (5), at the effect lower end cap (5) of this Returnning spring (6), there is the trend blocking through hole.
3. vertical centrifugal pump according to claim 2, is characterized in that, described limited ring (4) with intake pipe (21) for cambered surface contacts.
4. vertical centrifugal pump according to claim 2, is characterized in that, described plug (5) is in coniform.
5. vertical centrifugal pump according to claim 2, is characterized in that, described limited ring (4) is also provided with in trumpet-shaped pod apertures (41), the smaller diameter end of described pod apertures (41) is communicated with above-mentioned through hole.
6. vertical centrifugal pump according to claim 1, is characterized in that, the bottom of described receiving cavity (25) is provided with dewatering orifice (26), is sealedly connected with blocking in described dewatering orifice (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345286.7U CN204646801U (en) | 2015-05-26 | 2015-05-26 | Vertical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345286.7U CN204646801U (en) | 2015-05-26 | 2015-05-26 | Vertical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646801U true CN204646801U (en) | 2015-09-16 |
Family
ID=54099560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520345286.7U Expired - Fee Related CN204646801U (en) | 2015-05-26 | 2015-05-26 | Vertical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401983A (en) * | 2016-12-03 | 2017-02-15 | 申晓丽 | Vertical centrifugal pump |
-
2015
- 2015-05-26 CN CN201520345286.7U patent/CN204646801U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401983A (en) * | 2016-12-03 | 2017-02-15 | 申晓丽 | Vertical centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160526 |