CN207454289U - A kind of self-priming, degassing type process pump - Google Patents
A kind of self-priming, degassing type process pump Download PDFInfo
- Publication number
- CN207454289U CN207454289U CN201721358966.8U CN201721358966U CN207454289U CN 207454289 U CN207454289 U CN 207454289U CN 201721358966 U CN201721358966 U CN 201721358966U CN 207454289 U CN207454289 U CN 207454289U
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- China
- Prior art keywords
- pump
- impeller
- housing
- self
- partition plate
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- Expired - Fee Related
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Abstract
The utility model is related to pumping technology field, in particular to a kind of self-priming, degassing type process pump.Including the volute pump housing, first stage impeller, partition plate, secondary impeller, housing, main shaft；The first stage impeller, secondary impeller are located on main shaft, and first stage impeller is located at the pumping inside cavity that the volute pump housing is formed with partition plate；Secondary impeller is located inside the pump chamber that partition plate is formed with housing；Pumping cavity is connected with pump chamber by feed pathway；The secondary impeller is unsymmetric structure, and single side arrangement is presented in blade, with complete machine center line into eccentric structure.The utility model is simple in structure, be easy to casting, manufacture is at low cost, and process pump whole efficiency is high, suction head is big, is particularly suitable for the cleaning containing gas, impurity, the mixture condition of particle.
Description
Technical field
The utility model is related to pumping technology field, in particular to a kind of self-priming, degassing type process pump.
Background technology
Process pump can generally extract the medium that tolerance is less than 4%, and when air content is more than 4%, flow-lift curve will
There is the phenomenon that " collapse waist ", " turn around " in advance.Substantial amounts of gas is stacked at impeller eye, and impeller evacuates, and centrifugal pump is caused to be sent out
Raw dry operating, cavitation, seize and the failures such as shut down vibration exceeding the standard.
Process pump while entrance pipe bottom configures bottom valve, is opened when the liquid level extracted is less than pump center line in pump
It needs to fill entrance pipe before dynamic, completes " filling pump " process.When being again started up after a shutdown, often due to entrance pipe bottom
Valve leak cause to pump interior medium deficiency, there are gases.So that process pump impeller eye gassy, causes centrifugal pump
Dry operating, cavitation, seize and the failures such as shut down vibration exceeding the standard.
Higher than center line, the self priming pump with reservoir chamber, gas-liquid separation chamber's machine backwater channel can solve certainly general entrance
Suction problem, but the pump pump body structure is complicated, and casting difficulty is big.Certain media reflux is existed simultaneously, suction lift is limited, high
Efficiency is more difficult.
Utility model content
The utility model is related to pumping technology field, in particular to a kind of self-priming, degassing type process pump, including snail
The shape pump housing, first stage impeller, partition plate, secondary impeller, housing, main shaft；
The first stage impeller, secondary impeller are located on main shaft, and first stage impeller is located at the pump that the volute pump housing is formed with partition plate
Send inside cavity；Secondary impeller is located inside the pump chamber that partition plate is formed with housing；Pumping cavity and pump chamber pass through feed liquor
Passage is connected；
The secondary impeller is unsymmetric structure, and single side arrangement is presented in blade, with complete machine center line into eccentric structure.
The first stage impeller is equipped with balance hole and/or auxiliary blade.
The feed pathway is located on partition plate, near close balance hole or auxiliary blade root.
The feed pathway is crescent.
The case top is equipped with outlet liquid outlet.
The volute pump body is equipped with wearing plate.
The advantages of the utility model
The utility model compares that traditional self priming pump is simple in structure, be easy to casting, manufacture is at low cost.
Process pump whole efficiency is high, suction head is big, be particularly suitable for the cleaning containing more gas or containing impurity,
The mixture condition of grain, can the even running in operating mode of the gas content less than 40%.
Process pump has self-suction function, reduce it is necessary fill pump process, reduce after termination of pumping since bottom valve leak causes to stop
The risk of machine failure.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is chopped-off head blade wheel structure figure；
Fig. 3 is secondary impeller structure diagram；
Fig. 4 is diaphragm structure figure；
Fig. 5 is shell structure figure；
Fig. 6 is extraction line layout drawing；
Wherein：The volute pump housing 1, first stage impeller 2, partition plate 3, feed pathway 4, secondary impeller 5, housing 6, outlet liquid outlet
7th, link 8, axis 9, pump chamber 10, pumping cavity 11, wearing plate 12, entrance pipe 13.
Specific embodiment
Embodiment 1
The volute pump housing 1 with end face, with import, top has outlet.1 inside of the pump housing is first equipped with wearing plate 12
The components such as grade impeller 2, partition plate 3, secondary impeller 5.The first stage impeller 2 is located at the front end of axis 9.First stage impeller 2 has balance hole
2a, auxiliary blade 2b have balance hole 2a and auxiliary blade 2b simultaneously.Partition plate 3 is located at 2 rear portion of first stage impeller, with chopped-off head
There is gap between 2 auxiliary blade 2b of impeller.Partition plate 3 has feed pathway 4 simultaneously.The rear-wheel hub position of partition plate 3 and first stage impeller 2
Form clearance seal.The secondary impeller 5 is unsymmetric structure, positioned at 2 rear portion of first stage impeller, hub portion and first stage impeller 2
It is in contact, built-in gasket forms axial seal.Retain small―gap suture with partition plate 3, housing 6 at left and right sides of secondary impeller blade.
The housing 6 is located at 5 rear portion of secondary impeller, and a pumping capacity is formed with partition plate 3, link 8.The housing pumping capacity phase
It is eccentric structure for complete machine center line.6 center line of the housing portion on the upper side is provided with outlet liquid outlet 7.The main shaft 9 and chopped-off head
Impeller 2, secondary impeller 5 are engaged, and transfer torque.
Start before pumping in the pump chamber 10 of secondary impeller 5, appropriate amount of fluid is injected by outlet fluid hole 7, checks other
Oil circuit, vapour road, the normal condition of circuit open electric motor, and 9 impeller of pump shaft is made to rotate at a high speed.Due to asymmetric secondary
Cavity size, which is formed, between impeller 5 and eccentric pump chamber 10 replaces variation.Vacuum is formed when becoming larger, it will be in pumping cavity 11
Gas is drawn onto within pump chamber 10.When pump chamber 10 reduces, gas is discharged by outlet liquid outlet 7.It in cycles will pump
Gas in cavity 11 is sent to take away, forms vacuum, medium is pressed into pump intake by atmospheric pressure along entrance pipe 13.When medium floods chopped-off head
During 2 entrance of impeller, first stage impeller 2 starts to devote oneself to work.
Be provided with feed pathway 4 at 2 balance hole 2a of first stage impeller, due to the swabbing action of secondary impeller 5, can at this shape
The negative pressuren zone lower into more conventional process pump, making the gas contained in medium, excessive (ease) goes out, assembles and be pumped simultaneously here,
By gas outlet 7, pumping pond is back to, the performance for causing more conventional medium of the pump processing containing gas of the process pump is more excellent.
Since the new process pump is influenced by the air content of pumped (conveying) medium smaller, can goose neck formula be set in pump intake pipeline
Pipeline, makes the entrance pipe of pump have a certain amount of medium, reduces the volume of pumping vacuum, further shortens the secondary pump that opens
Time.
Claims (6)
1. a kind of self-priming, degassing type process pump, including the volute pump housing (1), first stage impeller (2), partition plate (3), secondary impeller (5),
Housing (6), main shaft (9)；It is characterized in that：
The first stage impeller (2), secondary impeller (5) are located on main shaft (9), and first stage impeller (2) is located at the volute pump housing (1) and partition plate
(3) the pumping cavity (11) formed is internal；Secondary impeller (5) is located at the pump chamber (10) that partition plate (3) is formed with housing (6)
It is internal；Pumping cavity (11) is connected with pump chamber (10) by feed pathway (4)；
The secondary impeller (5) is unsymmetric structure, and single side arrangement is presented in blade, with complete machine center line into eccentric structure.
2. self-priming according to claim 1, degassing type process pump, it is characterised in that：The first stage impeller (2) is equipped with flat
Weigh hole (2a) and/or auxiliary blade (2b).
3. self-priming according to claim 2, degassing type process pump, it is characterised in that：The feed pathway (4) is located at partition plate
(3) on, close to balance hole (2a) nearby or auxiliary blade (2b) root.
4. self-priming according to claim 3, degassing type process pump, it is characterised in that：The feed pathway (4) is crescent moon
Shape.
5. self-priming according to claim 1, degassing type process pump, it is characterised in that：Outlet is equipped at the top of the housing (6)
Liquid outlet (7).
6. self-priming according to claim 1, degassing type process pump, it is characterised in that：It is equipped with inside the volute pump housing (1)
Wearing plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358966.8U CN207454289U (en) | 2017-10-20 | 2017-10-20 | A kind of self-priming, degassing type process pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358966.8U CN207454289U (en) | 2017-10-20 | 2017-10-20 | A kind of self-priming, degassing type process pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454289U true CN207454289U (en) | 2018-06-05 |
Family
ID=62281017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721358966.8U Expired - Fee Related CN207454289U (en) | 2017-10-20 | 2017-10-20 | A kind of self-priming, degassing type process pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454289U (en) |
-
2017
- 2017-10-20 CN CN201721358966.8U patent/CN207454289U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191012 Address after: 116699 No. 9-1 Jinzhou Street, Dalian Economic and Technological Development Zone, Liaoning Province Patentee after: Mingci Technology (Dalian) Co., Ltd. Address before: 116001 Dalian 55 economic and Technological Development Zone, Liaoning Province, 1 units, 17, 1 Patentee before: Ruirang Fluid Technology (Dalian) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20201020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |