CN209557339U - A kind of anti-backflow axial-flow pump - Google Patents
A kind of anti-backflow axial-flow pump Download PDFInfo
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- CN209557339U CN209557339U CN201821897682.0U CN201821897682U CN209557339U CN 209557339 U CN209557339 U CN 209557339U CN 201821897682 U CN201821897682 U CN 201821897682U CN 209557339 U CN209557339 U CN 209557339U
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- filter plate
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Abstract
The utility model discloses a kind of anti-backflow axial-flow pumps, including water-inlet horn pipe, outlet pipe, pump shaft, anti-backflow device and pump case, the anti-backflow device includes non-return flowing plate, positioning plate and filter plate, the non-return flowing plate is arranged concentrically with the filter plate and the pump shaft, the positioning plate is vertically arranged with the filter plate, setting, which has elastic component, between the non-return flowing plate and the filter plate is connected, the non-return flowing plate is connected by elastic element and the positioning plate, and the filter plate is crosswise circular slab.Pass through setting anti-backflow device in the utility model, when pump stops working, non-return flowing plate falls after rise under spring and hydraulic pressure effect and is connected with locating rod, water is avoided to flow backwards down, when pump works again, wheel rotation will quickly can export in water inspiration axial-flow pump and from outlet pipe, saved the waste of the energy, improved work efficiency；Filter plate can carry out shunt filtering to the river water of sucking simultaneously, avoid impact of the particle to impeller etc..
Description
Technical field
The utility model belongs to water pump technology, is related to a kind of structure of water pump, more particularly to a kind of anti-backflow axis
Stream pump.
Background technique
Pump cavitation phenomenon, pump at work liquid impeller entrance because of certain vacuum pressure under can generate liquid vapour
Change, the bubble of vaporization metal surfaces such as impeller under the percussion movement of liquid particle generate peeling, to destroy the metals such as impeller.
When river water level is reduced to the design minimum water intaking position position of water pump, the pump chamber water surface will generate the whirlpool rotated strongly
Whirlpool, the whirlpool of paroxysmal will hold large quantity of air under the arm and enter water pump, and a large amount of bubble can generate cavitation to pipeline, due in pipeline
Fluid becomes water-air two phase flows, and high-velocity flow generates impact to pipeline and increases, and when bubbles burst, liquid particle mutually impacts,
Noise and unit vibration are generated, the two phase mutual excitation makes pump generate strenuous vibration, referred to as cavitation covibration, is easy to happen serious
Accident.And the river water medium containing solid particles such as a large amount of river sands, cavitation phenomenons are even more serious.
In addition, axial-flow pump conveys liquid in the axial direction by the active force that the blade of rotary blade generates liquid
Pump.When axial-flow pump break-off or bottom cleaning sundries maintenance shut-downs, the water in conveyance conduit can be flow backwards at once, influence to safeguard
The progress of work, and the water flow backwards is also more wasteful.And axial-flow pump, when just starting starting, impeller idle running cannot be quick
It in water inspiration axial-flow pump, will need to dally and could in turn result in the waste of resource in water inspiration axial-flow pump for a period of time.
Utility model content
In view of the above technical problems, the utility model provides a kind of anti-backflow axial-flow pump.
The utility model uses following technical scheme:
A kind of anti-backflow axial-flow pump, including water-inlet horn pipe, outlet pipe, pump shaft, anti-backflow device and pump case, it is described into
Water oviduct is fastenedly connected with pump case, and axis conductance leaf is provided on the pump shaft, before the axis conductance leaf front end is equipped with
Guide wheel is set, the junction of the water-inlet horn pipe and the pump case is arranged in the anti-backflow device；
The anti-backflow device includes non-return flowing plate, positioning plate and filter plate, the non-return flowing plate and the filter plate
It is arranged concentrically with the pump shaft, the positioning plate is vertically arranged with the filter plate, the positioning plate lower end and the filter plate
Periphery is fixedly connected；
Setting, which has elastic component, between the non-return flowing plate and the filter plate is connected, and the non-return flowing plate passes through elasticity
Element and the positioning plate connect, and the filter plate is crosswise circular slab.
Further, the positioning plate is set as circular integral structure.
Further, magnetic absorption part is respectively arranged on the positioning plate and the contact surface of the non-return flowing plate.
Further, the positioning plate and the contact surface of the non-return flowing plate are horizontal plane or inclined surface, the contact surface
When for inclined surface, it is equipped with the first chamfering in the non-return flowing plate lower periphery, and be equipped with the second chamfering in the positioning plate upper end.
Further, filter screen is additionally provided on the filter plate.
Further, the elastic element is spring.
The utility model has the beneficial effect that:
Anti-backflow device, when axial-flow pump stops working, non-return flowing plate are set at water-inlet horn pipe in the utility model
It falls after rise under the effect of spring, magnetic absorption and hydraulic pressure and is connected with locating rod, the water on top is avoided to flow backwards down, it can be by water
It staying in axial-flow pump, when pump being made to work again, wheel rotation will quickly can export in water inspiration axial-flow pump and from outlet pipe,
The waste for having saved the energy, improves work efficiency；Filter plate can carry out shunt filtering to the river water of sucking simultaneously, prevent solid
Particle enters water pump, avoids impact of the particle to impeller etc., reduces the reason of cavitation occurs for water pump, and extend pump uses the longevity
Life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model axial-flow pump；
Fig. 2 is the structural schematic diagram of anti-backflow device in the utility model；
Fig. 3 is the structural schematic diagram of filter plate in the utility model；
Fig. 4 is locating rod and filter plate attachment structure schematic diagram in the utility model.
Appended drawing reference: 1- water-inlet horn pipe；2- outlet pipe；3- pump shaft；31- axis conductance leaf；32- front guide impeller；4- is anti-down
Flow device；41- non-return flowing plate；42- positioning plate；43- filter plate；431- filter screen；5- pump case.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Referring to attached drawing 1-4, a kind of anti-backflow axial-flow pump, including water-inlet horn pipe 1, outlet pipe 2, pump shaft 3, anti-backflow device
4 and pump case 5, the water-inlet horn pipe 1 be fastenedly connected with pump case 5, axis conductance leaf 31 is provided on the pump shaft 3, in institute
It states 31 front end of axis conductance leaf and front guide impeller 32 is installed, the setting of anti-backflow device 4 is in the water-inlet horn pipe 1 and the pump
The junction of shell 5；
The anti-backflow device 4 includes non-return flowing plate 41, positioning plate 42 and filter plate 43, the non-return flowing plate 41 and institute
It states filter plate 43 to be arranged concentrically with the pump shaft 3, the positioning plate 42 is vertically arranged with the filter plate 43, the positioning plate 42
Lower end is fixedly connected with 43 periphery of filter plate；
Setting, which has elastic component, between the non-return flowing plate 41 and the filter plate 43 44 is connected, the non-return flowing plate 41
It is connected by elastic element 44 and the positioning plate 42, the filter plate 43 is crosswise circular slab.
Anti-backflow device 4 is set at water-inlet horn pipe 1, and when axial-flow pump stops working, non-return flowing plate 41 is in elastic member
Part 44 and the lower falling of hydraulic pressure effect are simultaneously connected with positioning plate 42, avoid the water on top from flowing backwards down, water can be stayed in axis stream
In pump, when pump works again, non-return flowing plate 41 moves up under the impulse force of water, and wheel rotation can be quickly by water inspiration
It is exported in axial-flow pump and from outlet pipe 2, has saved the waste of the energy, improved work efficiency；Filter plate 43 can be to sucking simultaneously
River water carry out shunt filtering, prevent solid particle from entering water pump, avoid impact of the particle to impeller etc., avoid water pump
Cavitation extends the service life of pump.
Further, the positioning plate 42 is set as circular integral structure.
Further, magnetic absorption part is respectively arranged on the positioning plate 42 and the contact surface of the non-return flowing plate 41
420.Sealing effect is further improved, prevents aqueous reflux, while magnetic part can effectively adsorb the metallic particles in water, avoid
Metallics impacts the devices such as impeller.
Further, the positioning plate 42 and the contact surface of the non-return flowing plate 41 are horizontal plane or inclined surface, described to connect
When contacting surface is inclined surface, it is equipped with the first chamfering in 41 lower periphery of non-return flowing plate, and be equipped in 42 upper end of positioning plate
Second chamfering.Block-water effect is improved, aqueous reflux is prevented.
Further, filter screen 431 is additionally provided on the filter plate 43.Improve the filter effect to fine solid particles.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (6)
1. a kind of anti-backflow axial-flow pump, including water-inlet horn pipe (1), outlet pipe (2), pump shaft (3), anti-backflow device (4) and
Pump case (5), the water-inlet horn pipe (1) are fastenedly connected with pump case (5), which is characterized in that are provided with axis on the pump shaft (3)
Conductance leaf (31) is equipped with front guide impeller (32) in axis conductance leaf (31) front end, and the anti-backflow device (4) is arranged in institute
State the junction of water-inlet horn pipe (1) Yu the pump case (5)；
The anti-backflow device (4) includes non-return flowing plate (41), positioning plate (42) and filter plate (43), the non-return flowing plate
(41) it is arranged concentrically with the filter plate (43) and the pump shaft (3), the positioning plate (42) is vertical with the filter plate (43)
Setting, positioning plate (42) lower end is fixedly connected with the filter plate (43) periphery；
Be arranged between the non-return flowing plate (41) and the filter plate (43) have elastic component (44) be connected, the non-return flowing plate
(41) it is connected by elastic element (44) and the positioning plate (42), the filter plate (43) is crosswise circular slab.
2. a kind of anti-backflow axial-flow pump according to claim 1, which is characterized in that the positioning plate (42) is set as annulus
Shape integral structure.
3. a kind of anti-backflow axial-flow pump according to claim 1 or 2, which is characterized in that the positioning plate (42) with it is described
Magnetic absorption part (420) are respectively arranged on the contact surface of non-return flowing plate (41).
4. a kind of anti-backflow axial-flow pump according to claim 3, which is characterized in that the positioning plate (42) and the non-return
The contact surface of flowing plate (41) is horizontal plane or inclined surface, when the contact surface is inclined surface, in non-return flowing plate (41) lower part
Periphery is equipped with the first chamfering, and is equipped with the second chamfering in the positioning plate (42) upper end.
5. a kind of anti-backflow axial-flow pump according to claim 1, which is characterized in that be additionally provided on the filter plate (43)
Strainer (431).
6. a kind of anti-backflow axial-flow pump according to claim 1, which is characterized in that the elastic element (44) is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821897682.0U CN209557339U (en) | 2018-11-16 | 2018-11-16 | A kind of anti-backflow axial-flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821897682.0U CN209557339U (en) | 2018-11-16 | 2018-11-16 | A kind of anti-backflow axial-flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557339U true CN209557339U (en) | 2019-10-29 |
Family
ID=68299271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821897682.0U Active CN209557339U (en) | 2018-11-16 | 2018-11-16 | A kind of anti-backflow axial-flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209557339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483574A (en) * | 2022-02-09 | 2022-05-13 | 江苏升亚泵阀制造有限公司 | Cam rotor pump convenient to maintain |
-
2018
- 2018-11-16 CN CN201821897682.0U patent/CN209557339U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483574A (en) * | 2022-02-09 | 2022-05-13 | 江苏升亚泵阀制造有限公司 | Cam rotor pump convenient to maintain |
| CN114483574B (en) * | 2022-02-09 | 2022-11-15 | 江苏升亚泵阀制造有限公司 | Cam rotor pump convenient to maintain |
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| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
Address after: 230000 room 1109, building 1, yunbang innovation space, qinglongtan Road West, FeiGuang Road East, Binhe District North export processing zone, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: HEFEI YIXIANG ELECTRIC EQUIPMENT Co.,Ltd. Address before: 230000 Room 301 of 5 Blocks of Sansheng Summer Palace, Hefei Municipal Administration District, Anhui Province Patentee before: HEFEI YIXIANG ELECTRIC EQUIPMENT Co.,Ltd. |