CN206582118U - A kind of self-priming centrifugal multistage pump multiple centrifugal pump - Google Patents
A kind of self-priming centrifugal multistage pump multiple centrifugal pump Download PDFInfo
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- CN206582118U CN206582118U CN201720202372.1U CN201720202372U CN206582118U CN 206582118 U CN206582118 U CN 206582118U CN 201720202372 U CN201720202372 U CN 201720202372U CN 206582118 U CN206582118 U CN 206582118U
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- priming
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Abstract
The utility model provides a kind of self-priming centrifugal multistage pump multiple centrifugal pump, belongs to fluid machinery technical field.It, which solves between existing centrifugal pump impeller and stator easily to loosen, causes efficiency low and the problem of self-priming effect is poor.This self-priming centrifugal multistage pump multiple centrifugal pump, the pump head being equipped with including motor and with motor, fastening is sealed against each other by snap joint between pump head and motor, seal receptacle is additionally provided between pump head and motor, some groups of impellers and stator are provided with power transmission shaft, air deflector is additionally provided with power transmission shaft, and mutually fastened by pressing plate, the edge of pressing plate uniformly offers some through holes, tie rod is provided between pressing plate and seal receptacle, the trailer card of tie rod is on seal receptacle, the head of tie rod is helicitic texture and through the through hole on pressing plate, and tightening nut is fixedly connected with thereon, self-absorption disc component is additionally provided with outside platen.The utility model makes it have structure by the setting of tie rod and self-absorption disc component and more fastened and the more preferable advantage of water storage effect.
Description
Technical field
The utility model belongs to fluid machinery technical field, is related to a kind of water pump, more particularly to it is a kind of it is self-priming it is multistage from
Heart pump.
Background technology
Centrifugal pump is to be rotated at a high speed by impeller and water is occurred centrifugal motion come work, and water pump is before activation, it is necessary to make
Water is full of in pump case and suction hose, then starts motor, after pump startup is centrifuged, pump shaft impeller one acts as rotation fortune at a high speed
It is dynamic, force and charge the liquid in rotation between blade in advance, in the presence of centrifugal inertial force, liquid makees footpath from impeller central to periphery
To motion.Liquid obtains energy in the motion process for flowing through impeller, and static energy increases, flow velocity increase.When liquid leaves impeller
Into after centrifugal pump shell, because shell inner flow passage gradually expands and slow down, part kinetic energy is converted into static energy, finally tangentially flows into
Discharge line.Collect so volute pump case is not only by the part of impeller trickle, and be again one and turn energy device.Work as liquid
Body from impeller central get rid of to periphery while, impeller central formation low-pressure area, cause liquid to be inhaled in the presence of atmospheric pressure
Enter impeller central.By the continuous operating of impeller, liquid is just continuously inhaled into and discharged.
Because this characteristic of centrifugal pump is widely used among life, miscellaneous centrifugation is also occurred in that on the market
Pump, in order to increase the lift of centrifugal pump, the impeller in general high-lift its pump head of centrifugal pump is configured to multistage and passed through
Nut is fastened, the centrifugal pump of the structure when in use between it is long after easily loosened between each impeller and stator, reduce water
The efficiency of pump, and traditional centrifugal pump self-priming effect is poor, if pump does not work for a long time, the inlet tube when starting for second
Water base inside road and the pump housing without filling cumbersome in a diversion, operation again again.
The content of the invention
The purpose of this utility model is more fastened there is provided a kind of structure for the above-mentioned problems in the prior art
And the more preferable self-priming centrifugal multistage pump multiple centrifugal pump of water storage effect.
The purpose of this utility model can be realized by following technical proposal：A kind of self-priming centrifugal multistage pump multiple centrifugal pump, including electricity
Machine and the pump head being equipped with motor, fastening is sealed against each other between described pump head and motor by snap joint, described
The seal receptacle for preventing liquid from entering motor internal is additionally provided between pump head and motor, the power transmission shaft of the motor passes through seal receptacle
Stretch into pump head, some groups of impellers are provided with positioned at spaced successively between seal receptacle and pump head on the power transmission shaft of the motor
With stator, described impeller is fixed on power transmission shaft, is additionally provided with air deflector on described power transmission shaft, it is characterised in that described
Air deflector, impeller and stator between mutually fastened by pressing plate, wherein, the edge of the pressing plate uniformly offers some logical
Hole, is provided with tie rod between described pressing plate and seal receptacle, the trailer card of the tie rod is described to tense on seal receptacle
The head of bar is for helicitic texture and through the through hole on pressing plate, and thereon, tightening nut is fixedly connected with, and is also set outside described platen
It is equipped with self-absorption disc component.
Originally the technique effect of self-priming centrifugal multistage pump multiple centrifugal pump is：Impeller and stator can effectively be prevented by the setting of tie rod
It is long between when in use to loosen afterwards, wherein, the trailer card of tie rod is offered and drawn on seal receptacle on seal receptacle
Air deflector, impeller and stator, are pressed on seal receptacle, impeller after compression by the neck that tight bar tail structure matches by pressing plate
It is located at air deflector respectively and in stator, the head of tie rod passes through the through hole opened up on pressing plate and is helicitic texture, passes through rotation
Turn nut is fastened, and the quantity of tie rod is at least two and is circumferentially uniformly distributed, in order to further increase this centrifugal pump
The reduction of self-priming effect is secondary to be poured water, and self-absorption disc component is additionally provided with pump head.
Relative to being generally connected between its pump head of traditional centrifugal pump and motor by screw, the utility model passes through at it
Both outer rings set snap joint, by snap joint by both fit sealings, are reducing production used time increase production efficiency
Meanwhile, it can be made to be more uniformly stressed sealing effectiveness more preferable.
In a kind of above-mentioned self-priming centrifugal multistage pump multiple centrifugal pump, spacer is provided between described each impeller and stator.Pass through
The setting of spacer can effectively reduce the friction between impeller and stator, increase the service life of impeller.
In a kind of above-mentioned self-priming centrifugal multistage pump multiple centrifugal pump, the outer ring of described seal receptacle is also arranged with sealing ring.The knot
Structure can further increase the sealing effectiveness of seal receptacle.
In a kind of above-mentioned self-priming centrifugal multistage pump multiple centrifugal pump, water inlet is axially offered on described pump head and is radially opened up
There is a delivery port, the water sucking mouth of the self-absorption disc component is connected with the water inlet on pump head and is arranged with O-ring thereon.
In a kind of above-mentioned self-priming centrifugal multistage pump multiple centrifugal pump, the lower section of the motor is fixed with base by screw.
In a kind of above-mentioned self-priming centrifugal multistage pump multiple centrifugal pump, mechanical seal is additionally provided with described power transmission shaft.
In a kind of above-mentioned self-priming centrifugal multistage pump multiple centrifugal pump, the quantity of the tie rod for 2 and with through hole on pressing plate
Quantity is corresponding.
In a kind of above-mentioned self-priming centrifugal multistage pump multiple centrifugal pump, described its material of self-absorption disc component is stainless steel.
In a kind of above-mentioned self-priming centrifugal multistage pump multiple centrifugal pump, described motor is threephase asynchronous.
Compared with prior art, this self-priming centrifugal multistage pump multiple centrifugal pump is made it have by the setting of tie rod and self-absorption disc component
Structure is more fastened and the more preferable advantage of water storage effect.
Brief description of the drawings
Fig. 1 is the Structure explosion diagram of this self-priming centrifugal multistage pump multiple centrifugal pump.
Fig. 2 is the schematic enlarged-scale view of tie rod in this self-priming centrifugal multistage pump multiple centrifugal pump.
In figure, 1, motor；2nd, pump head；3rd, snap joint；4th, seal receptacle；5th, impeller；6th, stator；7th, air deflector；8th, pressing plate；
9th, tie rod；10th, self-absorption disc component；11st, spacer；12nd, sealing ring；13rd, O-ring；14th, base；15th, mechanical seal.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, this self-priming centrifugal multistage pump multiple centrifugal pump, including motor 1 and the pump head 2 that is equipped with motor 1, pump head 2
Fastening is sealed against each other by snap joint 3 between motor 1, being additionally provided between pump head 2 and motor 1 prevents liquid from entering motor
Seal receptacle 4 inside 1, the power transmission shaft of motor 1 is stretched into pump head 2 through seal receptacle 4, and seal receptacle 4 is located on the power transmission shaft of motor 1
Spaced successively between pump head 2 to be provided with some groups of impellers 5 and stator 6, impeller 5 is fixed on power transmission shaft, on power transmission shaft
Air deflector 7 is additionally provided with, is mutually fastened by pressing plate 8 between air deflector 7, impeller 5 and stator 6, wherein, the edge of pressing plate 8 is equal
Even offers some through holes, and tie rod 9 is provided between pressing plate 8 and seal receptacle 4, and the trailer card of tie rod 9 is located at seal receptacle 4
On, the head of tie rod 9 is for helicitic texture and through the through hole on pressing plate 8, and tightening nut is fixedly connected with outside platen also thereon
It is provided with self-absorption disc component 10.
Further describe in detail, spacer 11 is provided between each impeller 5 and stator 6,6 points of stator is that support guide vane is led with water outlet
Leaf, it is water outlet stator to be provided with bottom, above water outlet stator for support guide vane, the quantity of water outlet stator is 1
Individual, support guide vane can also be arranged with sealing ring 12, pump head 2 according to the outer ring of seal receptacles 4 depending on 5 groups of numbers of impeller and axially open up
There is water inlet and radially offer delivery port, the water sucking mouth of self-absorption disc component 10 is connected with the water inlet on pump head 2 and at it
On be arranged with O-ring 13, the lower section of motor 1 is fixed with base 14, power transmission shaft by screw is additionally provided with mechanical seal 15, tense
The quantity of bar 9 is 2 and corresponding with the quantity of through hole on pressing plate 8, and its material of self-absorption disc component 10 is stainless steel, and motor 1 is
Threephase asynchronous.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used motor 1, pump head 2, snap joint 3, seal receptacle 4, impeller 5, stator 6, air deflector herein
7th, the term such as pressing plate 8, tie rod 9, self-absorption disc component 10, spacer 11, sealing ring 12, O-ring 13, base 14, mechanical seal 15,
But it is not precluded from the possibility using other terms.It is used for the purpose of more easily describing and explaining this practicality using these terms
New essence；Any additional limitation is construed as all to disagree with the utility model spirit.
Claims (9)
1. a kind of self-priming centrifugal multistage pump multiple centrifugal pump, including motor（1）With with motor（1）The pump head being equipped with（2）, described pump head
（2）With motor（1）Between pass through snap joint（3）Seal against each other fastening, described pump head（2）With motor（1）Between also set up
Prevent liquid from entering motor（1）Internal seal receptacle（4）, the motor（1）Power transmission shaft pass through seal receptacle（4）Stretch into pump head
（2）It is interior, the motor（1）Power transmission shaft on be located at seal receptacle（4）With pump head（2）Between spaced be successively provided with some groups
Impeller（5）With stator（6）, described impeller（5）It is fixed on power transmission shaft, air deflector is additionally provided with described power transmission shaft（7）,
Characterized in that, described air deflector（7）, impeller（5）With stator（6）Between pass through pressing plate（8）Mutually fastening, wherein, it is described
Pressing plate（8）Edge uniformly offer some through holes, described pressing plate（8）With seal receptacle（4）Between be provided with tie rod
（9）, the tie rod（9）Trailer card be located at seal receptacle（4）On, the tie rod（9）Head helicitic texture and to pass through
Pressing plate（8）On through hole, and thereon, tightening nut is fixedly connected with, described pressing plate（8）It is additionally provided with self-absorption disc component outside（10）.
2. a kind of self-priming centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that described each impeller（5）With leading
Leaf（6）Between be provided with spacer（11）.
3. a kind of self-priming centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that the seal receptacle（4）Outer ring
Also it is arranged with sealing ring（12）.
4. a kind of self-priming centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that described pump head（2）Upper axial direction
Offer water inlet and radially offer delivery port, the self-absorption disc component（10）Water sucking mouth and pump head（2）On water inlet
It is connected and is arranged with O-ring thereon（13）.
5. a kind of self-priming centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that the motor（1）Lower section lead to
Cross screw and be fixed with base（14）.
6. a kind of self-priming centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that be additionally provided with described power transmission shaft
Mechanical seal（15）.
7. a kind of self-priming centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that described tie rod（9）Number
Measure as 2 and and pressing plate（8）The quantity of upper through hole is corresponding.
8. a kind of self-priming centrifugal multistage pump multiple centrifugal pump according to claim 1 or 4, it is characterised in that described self-absorption disc component
（10）Its material is stainless steel.
9. a kind of self-priming centrifugal multistage pump multiple centrifugal pump according to claim 1 or 5, it is characterised in that described motor（1）For three
Phase asynchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720202372.1U CN206582118U (en) | 2017-03-03 | 2017-03-03 | A kind of self-priming centrifugal multistage pump multiple centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720202372.1U CN206582118U (en) | 2017-03-03 | 2017-03-03 | A kind of self-priming centrifugal multistage pump multiple centrifugal pump |
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| Publication Number | Publication Date |
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| CN206582118U true CN206582118U (en) | 2017-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720202372.1U Active CN206582118U (en) | 2017-03-03 | 2017-03-03 | A kind of self-priming centrifugal multistage pump multiple centrifugal pump |
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| CN (1) | CN206582118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209901A (en) * | 2018-11-28 | 2019-01-15 | 兴化市中兴电器制造有限公司 | A kind of drill bit pump |
-
2017
- 2017-03-03 CN CN201720202372.1U patent/CN206582118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209901A (en) * | 2018-11-28 | 2019-01-15 | 兴化市中兴电器制造有限公司 | A kind of drill bit pump |
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