CN207315676U - A kind of self priming pump - Google Patents
A kind of self priming pump Download PDFInfo
- Publication number
- CN207315676U CN207315676U CN201721344776.0U CN201721344776U CN207315676U CN 207315676 U CN207315676 U CN 207315676U CN 201721344776 U CN201721344776 U CN 201721344776U CN 207315676 U CN207315676 U CN 207315676U
- Authority
- CN
- China
- Prior art keywords
- impeller
- self priming
- priming pump
- pump
- choma
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of self priming pump, the jet rose of an offer flow type pump with injection is provided, several apertures are provided with nozzle, one high-pressure fluid and the jet pipe of low-pressure fluid mixing, one inserts for being used for choma position, one impeller and a guide vane, improve centrifugal pump cavitation performance with multiple jet technology, improve centrifugal pump suction.The utility model can greatly improve the anti-cavitation performance of centrifugal pump, improve the serious present situation of cavitation under big flow operating mode, can be applied to water-saving irrigation agricultural.
Description
Technical field
A kind of self priming pump is the utility model is related to, refers in particular to improve low specific-speed centrifugal pump impeller sky using multiple jet technology
Pump that is changing and can realizing self-priming.
Background technology
Low specific-speed centrifugal pump is rotated at a high speed by impeller, and electric energy is eventually converted into the fluid of liquid kinetic energy and pressure energy
Machinery, with the quickening of impeller inlet flow velocity in this course of work, impeller inlet pressure declines, when the pressure of liquid is less than
During pressure for vaporization, cavitation phenomenon is will appear from, and with vibration noise.In recent years, numerous scholars research reality, control impeller into
The distribution of pressure and speed helps to improve the cavitation performance of impeller in the flow field of mouth position.At present, for improve work efficiency,
The purpose of reducing cavitation and cavitation erosion, the research of low specific-speed centrifugal pump impeller inlet parameter further adds.
Cavitation phenomenon and development occurs during low specific-speed centrifugal pump impeller to prevent liquid entry into as far as possible, causes centrifugal pump to shake
The aggravation of moving noise, people, which are highly desirable to, designs a kind of device that can greatly improve impeller inlet pressure, can not be too many
Reduction centrifugal pump efficiency.At present, generally penetrated for small flow, high-lift, high suction depth low specific-speed centrifugal pump using single hole
Flow Technique improves cavitation performance, and the energy for the high-speed liquid for causing to project from ejector fails to effectively utilize, the efficiency of pump compared with
It is low.
The content of the invention
The purpose of this utility model is to provide a kind of self priming pump, to improve the pressure of centrifugal pump impeller entrance location, changes
Kind impeller inlet cavitation, the multiple jet apparatus can be effectively improved the fluidised form of impeller inlet, reduce when using single hole jet stream
Axial dimension.
The utility model is the combination of multiple jet device and low specific-speed centrifugal pump, with traditional low specific-speed centrifugal pump phase
Than having the advantage that and improving：
1. the utility model effectively increases the energy conversion of low speed and high-velocity fluid using multiple jet technology, than using
Single hole fluidics has very big improvement；
2. the utility model be subject to impeller port ring inserts due to being influenced, the fluidised form at impeller inlet is uniform, in choma
Liquid is consistent with main flow direction after the drainage of inserts.
Concrete technical scheme is as follows：
A kind of self priming pump, it is characterised in that including：Fluidic device and choma inlay device；The fluidic device includes more
Hole nozzle (1), straightway and diffuser (3)；The straightway is connected with the afterbody of diffuser (3) with impeller inlet, described
Impeller inlet be embedded in default choma inlay device, the impeller and guide vane are combined together.
The jet rose (1) is embedded on the pump housing (2), and jet rose (1) section is equipped with 5 apertures.Described
Small hole center arranges one, other are uniformly distributed on same circumference and arrange, and 5 small apertures are equal.
The key (7) and axis (8) are tight fit, and the impeller (9) is fixed on axis (8) by axis head nut (5)
On, and form gap with guide vane (10).
The deflation nut (4) and the water-proof nut (11) are located at sidepiece and the top of the pump housing (2) respectively.
Impeller port ring inserts (6) has been installed in position, that is, pump inlet (13) of pump and impeller inlet additional, and impeller inlet is goed deep into mouth
In ring inserts (6), efficiency is low caused by be effectively improved circumfluence.
The beneficial effects of the utility model are：Using multiple jet and inserts technique, it is provided with impeller inlet multiple small
Hole, drains into nozzle by the high-pressure fluid in guide vane, forms Involving velocity, improve suction lift and self-priming time, be effectively improved
Low specific-speed centrifugal pump cavitation performance.
Brief description of the drawings
Attached drawing 1 provides a kind of schematic diagram of multiple jet self priming pump described in the utility model；
Attached drawing 2 provides the profile of jet rose structure described in the utility model；
Attached drawing 3 provides schematic diagram of the jet rose structure described in the utility model from nozzle location direction；
Attached drawing 4 provides choma inserts profile described in the utility model.
In figure：1. jet rose；2. the pump housing；3. section is calculated in straight pipe and expansion；4. deflation nut；5. axis head nut；6. choma
Inserts；7. key；8. axis；9. impeller；10. guide vane；11. water-discharging nut；12 pump discharges；13 pump inlets.
Embodiment
Below against attached drawing, by the description of the embodiment, to specific embodiment of the present utility model as involved
Mutual alignment and connection relation, the effect of each several part and operation principle, manufacture between the shape of each component, construction, each several part
Technique and operate with method etc., are described in further detail, to help those skilled in the art to the utility model
Design, technical solution have more complete, accurate and deep understanding.
Needed to jet rose structure 1, directly as shown in Figure 1, a kind of jet rose described in the utility model penetrates self priming pump
Pipeline section and expansion are calculated section 3, guide vane 10, axis 8 and key 7 and are assembled, and ensure that impeller wants flexible rotating.
Self priming pump mounting technology embodiment described in the utility model：
Step 1, assemble impeller 9, key 7, axis head nut 5 and axis 8；
Step 2, assemble step 1 and choma inserts, ensures choma gap in 0.5mm, impeller flexible rotating；
Step 3, by jet rose structure 1, the pump housing 2, straight pipe and expand and calculate section 3 and step 2 and assemble, and obtains as shown in Figure 1
Installation diagram.
The utility model sums up parameter in detail below, for those skilled in the art according to obtained data are tested
Member selects application when implementing the utility model：
For one, hole, holes around 4-6 centered on hole count requirement.In order to facilitate manufacture, reduce cost, it is described each
The size in hole is identical.
The method of operation of the self priming pump is：Working fluid (water) enters from the pump inlet 12, reaches the porous spray
Mouth 1, the straight pipe is mixed into the high-speed liquid (water) projected from jet rose and is expanded and calculates section 3, then in the leaf
Enter the guide vane 10 under the effect of wheel 9, a part of liquid is flowed out from the pump discharge 13, and another part is back to the spray
Mouth 1 is mixed with the low-velocity liquid that the pump inlet 12 flows into, and into the straight pipe and is expanded calculation section 3, so repeatedly, is reached conveying
The effect of liquid.Since 12 position of pump inlet is higher than the import of the impeller 9, it can realize self-priming and realize increase
The effect of suction.
The liquid conveyed in the operational process of the self priming pump is not limited solely to water, can also convey the similar water such as weak acid, weak base
Medium.
Above example is only to illustrate the technical solution of the utility model, rather than its limitations；Jet rose structure 1
Aperture and the not single one kind of hole count, although the utility model is described in detail with reference to foregoing embodiments, ability
The those of ordinary skill in domain should be understood；The material that jet rose structure 1 uses is not to refer in particular to a certain material；Choma inserts 6
Gap with impeller 9 must be in zone of reasonableness；Jet rose structure 1 and being used cooperatively for impeller 9 still can be real to foregoing
Apply the technical solution described in example to modify, or equivalent substitution is carried out to which part technical characteristic；And these modification or
Person replaces, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the utility model technical solution.
Claims (6)
- A kind of 1. self priming pump, it is characterised in that including：Fluidic device and choma inlay device；The fluidic device includes porous Nozzle (1), straightway and diffuser (3)；The straightway is connected with the afterbody of diffuser (3) with impeller inlet, described Impeller inlet is embedded in default choma inlay device, and the impeller and guide vane are combined together.
- A kind of 2. self priming pump according to claim 1, it is characterised in that：The jet rose (1) is embedded in the pump housing (2) On, jet rose (1) section is equipped with 5 apertures.
- A kind of 3. self priming pump according to claim 2, it is characterised in that：The small hole center arranges one, other are equal Even be distributed on same circumference arranges, and 5 small apertures are equal.
- A kind of 4. self priming pump according to claim 1, it is characterised in that：The key (7) and axis (8) are tight fit, are led to Cross axis head nut (5) impeller (9) is fixed on axis (8), and gap is formed with guide vane (10).
- A kind of 5. self priming pump according to claim 1, it is characterised in that：The deflation nut (4) and the waterproof Nut (11) is located at sidepiece and the top of the pump housing (2) respectively.
- A kind of 6. self priming pump according to claim 1, it is characterised in that：Position, that is, pump inlet (13) of pump and impeller inlet Install impeller port ring inserts (6) additional, impeller inlet has been goed deep into choma inserts (6), effect caused by be effectively improved circumfluence Rate is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721344776.0U CN207315676U (en) | 2017-10-19 | 2017-10-19 | A kind of self priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721344776.0U CN207315676U (en) | 2017-10-19 | 2017-10-19 | A kind of self priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207315676U true CN207315676U (en) | 2018-05-04 |
Family
ID=62381453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721344776.0U Expired - Fee Related CN207315676U (en) | 2017-10-19 | 2017-10-19 | A kind of self priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207315676U (en) |
-
2017
- 2017-10-19 CN CN201721344776.0U patent/CN207315676U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104772239B (en) | Supersonic speed chrysanthemum type nozzle and the gas blowing type vacuum pump for being equipped with the nozzle | |
| CN104533846A (en) | High pressure annular jet pump suitable for pumping pressure type supply system | |
| CN104421093A (en) | Hydraulic turbine and pipe | |
| CN201083177Y (en) | Draft tube | |
| CN108661947A (en) | Using the axial flow compressor blade of Condar jet and using its axial flow compressor | |
| CN106481568B (en) | Self-priming shields combination pump | |
| CN208024638U (en) | A kind of axial-flow pump for eliminating stall whirlpool inside guide vane | |
| CN207315676U (en) | A kind of self priming pump | |
| CN112648230B (en) | High-efficiency cavitation-resistant centrifugal pump impeller | |
| CN106089808A (en) | A kind of blade diffuser with trailing edge structures before swallow-tail form and formative method thereof | |
| CN107701460A (en) | A kind of self priming pump | |
| CN206636848U (en) | A kind of antidetonation jet pump | |
| CN105715582B (en) | The special vane structure and its design method of a kind of suppression cavitation | |
| CN203009310U (en) | Cavitation-resistant type vane pump | |
| CN204553358U (en) | A kind of high pressure annular jet pump being applicable to turbopump-feed system | |
| CN102182519B (en) | Self-jet flow secondary flow control structure of turbine stator vane | |
| CN103233914B (en) | Guide axial flow pump impeller | |
| CN203892268U (en) | Single-stage pump structure capable of balancing axial force | |
| CN108730227A (en) | A kind of ultralow lifting pump blade and reversible axial flow pump | |
| CN208396952U (en) | A kind of jet pump with gas-liquid separation device | |
| CN105626581A (en) | Stress application centrifugal pump with pressurization hole | |
| CN103850947B (en) | A kind of anti-cavitation vane pump | |
| CN209586774U (en) | A kind of narrow flow road turbine | |
| CN205478553U (en) | Take supercharging hole's afterburning centrifugal pump | |
| CN207598589U (en) | Inhibit the centrifugal pump device of impeller blade cavitation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 Termination date: 20181019 |