CN206816503U - Vacuum self priming pump - Google Patents
Vacuum self priming pump Download PDFInfo
- Publication number
- CN206816503U CN206816503U CN201720680622.2U CN201720680622U CN206816503U CN 206816503 U CN206816503 U CN 206816503U CN 201720680622 U CN201720680622 U CN 201720680622U CN 206816503 U CN206816503 U CN 206816503U
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- pump housing
- motor shaft
- self priming
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
It the utility model is related to a kind of vacuum self priming pump, including the pump housing, pump cover, impeller, motor, motor shaft, impeller nut, support, there are inlet and liquid outlet on the pump housing, inlet annular seal space and liquid outlet annular seal space, first flow, first flow is annular groove, pump cover has second flow channel, second flow channel is identical with respect to the position of motor shaft axis with first flow, shape, size is identical, installation valve below the inlet flange or liquid outlet flange of the pump housing, motor shaft lengthens and replaces impeller axle, motor shaft is stainless steel shaft, the inlet flange and liquid outlet flange of the pump housing and housing one-shot forming, the pump housing, pump cover material is stainless steel or steel alloy or engineering plastics, impeller material is Hastelloy, pump configuration of the present utility model is reasonable, it is simple to operate, reliable operation, and suction is superpower, it is wide liquid range can be conveyed.
Description
Technical field
It the utility model is related to a kind of centrifugal pump, more particularly to a kind of vacuum self priming pump.
Background technology
The operation principle of vacuum self priming pump is：Liquid is first filled before pump startup in pump case（Or itself there is liquid in pump case
Body）, rotation makes the liquid in impeller conduit flow to volute to impeller at a high speed after startup, and now entrance forms vacuum, by pipeline
In air suction pump, and outer rim is sent to through impeller conduit, then draws liquid into and discharge.Because the pump housing of vacuum self priming pump compared with
Height has certain liquid storage capacity, it is only necessary to liquid is poured into pump case using preceding for the first time, when starting every time afterwards, utilizes pump case
The storage liquid that interior upper task leaves can complete self-priming process, because above-mentioned advantage, vacuum self priming pump are used widely.
At present, in the market has the vacuum self priming pump of various structures, and Chinese patent CN203770146U discloses a kind of vacuum
Self priming pump, including the pump housing, combined rotor and Power Component, the first annular seal space in the pump housing are connected with inlet, the second annular seal space
Connected with liquid outlet, the 3rd annular seal space is C-shape, there is the 4th annular seal space in pump cover, and motor with motor shaft by being fixedly connected
Impeller axle, kinetic energy is passed into impeller, the impeller of rotation makes inlet moment form vacuum, sucks liquid.
In the prior art, to first annular seal space and the second annular seal space shape size relation, and the 3rd annular seal space and the 4th close
It is unclear to seal the form and dimension relationship description of chamber, does not also refer to third and fourth annular seal space respectively in the pump housing, pump covering position,
And the suction of self priming pump and the shape, size, position of flow and above-mentioned each annular seal space are closely bound up.According to the original of vacuum self priming pump
Reason, pump need to pour into appropriate liquid to be pumped in advance when changing pumping liquid, and now inlet flange connects with system pipeline
Connect, liquid filling operating difficulties.In the assembly technology parameter of pump, the axiality of motor shaft and impeller axle is very important parameter, such as
Phenomena such as fruit coaxiality error is larger, then machine vibration, motor and pump damage of components occurs, motor overload burns.Generally,
Liquid in-out mouth flange and housing cast and welded or using threaded connection respectively, water pump operationally, flange and pipeline can because
Hold and can't stand pressure and ruptured in commissure, pump is revealed and can not worked.Suction lift be self priming pump important performance characteristic it
One, the gap that one of factor of self priming pump suction lift is impeller both ends of the surface and pump case is influenceed, gap is smaller, the suction lift of pump
It is bigger, but the processing and assembling of pump is it is difficult to ensure that too small gap, the reasonable value value range of this gap must be studied.
Utility model content
The shortcomings that for above-mentioned prior art or deficiency, in order to solve the unreasonable structure of pump, pumping liquid difficulty is changed,
The problem of motor shaft is difficult to ensure that with impeller axle axiality, and welding pump housing work are unreliable, and suction lift does not reach requirement
The problem of, the utility model provides a kind of vacuum self priming pump.
The technical solution adopted in the utility model is：
A kind of vacuum self priming pump, including the pump housing, pump cover, impeller, motor, motor shaft, impeller nut, support, support one end
With motor connection, the support other end is fixed with the pump housing, and pump cover fastens with the pump housing, and pump cover is present in support endoporus, and impeller nut will
Impeller is installed in impeller axle, and motor shaft impeller axle rotates, have on the pump housing inlet and liquid outlet, inlet annular seal space with
Liquid outlet annular seal space, first flow, inlet annular seal space communicate with inlet, and liquid outlet annular seal space communicates with liquid outlet；It is special
Sign is that inlet annular seal space impeller axle axisymmetrical arrangement relative with liquid outlet annular seal space, shape, size are identical, on the pump housing
First flow be annular groove, annular groove is with respect to impeller axle axisymmetrical, and the center of circle of the annulus of annular groove is on motor shaft axis；
Installation valve below the inlet flange or liquid outlet flange of the pump housing.
The valve is ball valve.
The motor shaft lengthens and replaces impeller axle, and motor shaft is stainless steel shaft.
The inlet flange and liquid outlet flange of the pump housing and housing one-shot forming.
Pump cover has second flow channel, and second flow channel is identical with respect to the position of motor shaft axis with the first flow on the pump housing,
Shape, size are identical.
Vacuum self priming pump also includes the axle sleeve being sleeved on motor shaft, the mechanical seal being arranged on the outside of axle sleeve, and fixes
Machine sealed cover on pump cover.
Gap is 0.08 ~ 0.2mm between impeller end face and the pump housing, between impeller other end and pump cover gap be 0.08 ~
0.2mm。
The pump housing, pump cover material are stainless steel or steel alloy, and impeller material is Hastelloy.
The pump housing, pump cover material are engineering plastics, and impeller material is Hastelloy.
Compared with prior art, it is symmetrical structure the utility model has the advantage of the internal structure of, pump, and the pump housing and pump
The runner covered and motor shaft are concentric, and smoothly, faster, operating efficiency is high for flow velocity, and because stream for flowing of the liquid in pump case
Dynamic smooth, the liquid of inlet annular seal space can be brought away from rapidly, the moment vacuum increase of inlet, and then improve self priming pump
Suction capacity.After having second flow channel on pump cover, that is, Double Channel Pump is formed, Double Channel Pump is more preferable by property, and suction flow is big, anti-stifled
Plug and anti-winding ability are strong, and operation is more steady.
Below pump housing inlet after installation valve, the liquid filling before different pumping liquids is changed, without by inlet and system
The pipeline of connection is all taken apart, liquid filling, reinstalls, it is only necessary to opens valve, liquid is poured into pump case, closes valve, you can
Liquid filling is completed, operation is very easy, and be particularly suitable for use in the situation that pumping liquid species is frequently changed.Ball valve is one kind of valve,
The advantages of ball valve be standard-sized sheet or it is fully closed when, the sealing surface of spheroid and valve seat is isolated with medium, at a high speed by the medium of valve not
The erosion of valve sealing face can be caused, and applicable liquid pressure range is wide, fluid resistance is small, and small volume, easy to operate,
It is very good for use as the valve effect of liquid feeding mouth.
If impeller axle is separately manufactured with motor shaft, then is connected by shaft coupling, the axiality of impeller axle and motor shaft
It is difficult to ensure that, needs during assembling to pad copper sheet on motor foot or iron sheet adjusts the difference in height of two axles, installation and debugging are cumbersome, use
After a period of time, also need to adjust again.Motor shaft of the present utility model and impeller axle use the structure of shaft, it is entirely avoided
The problem of axiality difference, the job stability and reliability of pump are higher, and vibration and noise are smaller, and simplify the assembler of pump
Skill, improve the production efficiency of pump.Motor shaft replaces 45 steel using stainless steel, makes pump can be used for aspirating the strong liquid of corrosivity,
When other excessively stream parts of pump also use resistant material, whole pump can be used for chemical industry as noncorrosive pump.
Liquid in-out mouth flange and housing integrally casting shaping, compared to the pump housing being welded by part, can bear bigger
Fluid pressure without rupturing, use the pump safety and reliability after improvement.
The gap of impeller both ends of the surface and pump case is smaller, and the suction lift of pump is bigger.When a and b is 0.08 ~ 0.2mm, pump has
Stronger suction capacity, the suction lift of water is up to 8 meters, far above 3 ~ 4 meters of other self priming pumps.
The flow passage components of vacuum self priming pump use stainless steel or engineering plastics, and impeller uses Hastelloy.Because engineering plastic
Material has good rigidity, excellent chemical resistance, high-low temperature resistant, does not glue, low-friction coefficient, so with engineering plastics system
The nonmetal pump of work can use as chemical pump, the conveying liquid that corrosivity is strong and viscosity is high.
Vacuum self priming pump of the present utility model is rational in infrastructure, easy to operate, reliable operation, and suction is superpower, can convey liquid
The wide vacuum self priming pump of body scope.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model vacuum self priming pump；
Fig. 2 is the front view of the utility model pump housing；
Fig. 3 is the rearview of the utility model pump housing；
Fig. 4 is the cut-away view of the utility model pump cover.
Embodiment
Design, concrete structure and caused technique effect of the present utility model are made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
As shown in figure 1, one of embodiment is, the pump housing 1 is stainless steel or steel alloy, integrally casting shaping, inlet A and
Liquid outlet B is located at the top of the pump housing 1, and inlet flange 104 or the lower section of liquid outlet flange 105 are equipped with ball valve, be provided with inside the pump housing 1 into
Liquid mouth annular seal space 101 and liquid outlet annular seal space 102, inlet annular seal space 101 communicate with inlet A, liquid outlet annular seal space 102 with
Liquid outlet B is communicated, and inlet annular seal space 101 is identical with the shape of liquid outlet annular seal space 102 and size, and position is with respect to the axle of motor shaft 4
Line is arranged symmetrically, and annular groove, as first flow 103 are driven inside the pump housing 1, and annular groove is first-class with respect to the axisymmetrical of motor shaft 4
The center of circle of the annulus of the annular groove of road 103 is on the axis of motor shaft 4, and pump cover 2 is stainless steel or steel alloy, integrally casting shaping.
The one end of support 6 is connected with motor flange, and the other end is connected with the pump housing 1, and axle is cased with integral stainless steel motor shaft 4
Set 9, pump cover 2 is set with the motor shaft (4), there is mechanical seal 8 between the endoporus of pump cover 2 and axle sleeve 9, and pump cover 2 is pacified close to motor side
Installation sealed cover 7 seals mechanical seal 8 up for safekeeping, and pump cover 2 is placed in the impeller that support 6 makes close to the inside of the side of the pump housing 1, Hastelloy
On the motor shaft (4), impeller 3 is fixed on motor shaft 4 by impeller nut 5, and the end face of impeller 3 is deposited with the inner face of pump cover 2 for 3 installations
After adding seal between gap a, the pump housing 1 and pump cover 2, the pump housing 1 is fastened with support 6 with bolt, the inner face of the pump housing 1 and impeller 3
There is gap b in other end, preferably a and b gap lengths are 0.08 ~ 0.2mm, and this gap can ensure the stronger suction and self-priming of pump
Highly.
Before using water pump for the first time, appropriate amount of fluid is first poured into pump case, when starting motor, the impeller 3 of motor shaft 4 is revolved
Turning, impeller 3, which rotates at a high speed, gets rid of the liquid in pump case to edge, and first flow 103 and the annular seal space of second flow channel 201,
Moment forms vacuum at inlet annular seal space 101, and the liquid in external pipe is inhaled into pump case,
In order that self priming pump of the present utility model is used for more particular surroundings, the part of the excessively stream part of pump is used instead resistance to
Corrosion material, for example, the pump housing 1 and pump cover 2 use fluoroplastics, injection moulding integrated molding, impeller 3 uses Hastelloy, impeller nut 5
Fluoroplastics are also used with machine sealed cover 7.Because fluoroplastics have a good rigidity, excellent chemical resistance, high-low temperature resistant,
Low-friction coefficient, so above-mentioned nonmetal pump can use as chemical pump, the strong liquid of conveying corrosivity.
Another embodiment of the present utility model is dual channel vacuum self priming pump, as shown in figure 4, setting annular inside pump cover 2
Groove, i.e. second flow channel 201, second flow channel 201 is identical with respect to the position of the axis of motor shaft 4 with the first flow 103 on the pump housing 1,
Shape, size are identical, form dual channel in pump case, dual channel vacuum self priming pump it is more preferable by property, suction flow is big, anti-clogging
Strong with anti-winding ability, operation is more steady.
Although multiple embodiments of the present invention are described above, for the ordinary skill in the art, can
Without departing from the principles and spirit of the present invention these embodiments are carried out with a variety of changes, modification, replacement to understand
And modification, protection scope of the present invention are limited by every claim and its equivalency range.
Claims (9)
1. a kind of vacuum self priming pump, including the pump housing（1）, pump cover（2）, impeller（3）, motor, motor shaft（4）, impeller nut（5）、
Support（6）, the support（6）One end and motor connection, the support（6）The other end and the pump housing（1）It is fixed, the pump cover
（2）With the pump housing（1）Fasten, the pump cover（2）It is present in the support（6）Endoporus, the impeller nut（5）By the leaf
Wheel（3）It is installed in impeller axle, the motor shaft（4）Impeller axle rotates, the pump housing（1）On have inlet（A）With going out
Liquid mouth（B）, inlet annular seal space（101）With liquid outlet annular seal space（102）, first flow（103）, the inlet annular seal space
（101）With inlet（A）Communicate, the liquid outlet annular seal space（102）With the liquid outlet（B）Communicate；
Characterized in that,
The inlet annular seal space（101）With the liquid outlet annular seal space（102）Arranged with respect to impeller axle axisymmetrical, shape,
Size is identical, the pump housing（1）On the first flow（103）For annular groove, the relatively described impeller axle axis pair of annular groove
Claim, the center of circle of the annulus of annular groove is in the motor shaft（4）On axis；
The pump housing（1）Inlet flange（104）Or liquid outlet flange（105）Lower section is installed by valve（10）.
2. vacuum self priming pump according to claim 1, it is characterised in that the valve（10）For ball valve.
3. vacuum self priming pump according to claim 1, it is characterised in that the motor shaft（4）Lengthening replaces impeller axle, institute
State motor shaft（4）For stainless steel shaft.
4. vacuum self priming pump according to claim 1, it is characterised in that the pump housing（1）Inlet flange（104）With
Liquid outlet flange（105）With housing（106）One-shot forming.
5. vacuum self priming pump according to claim 1, it is characterised in that the pump cover（2）With second flow channel（201）,
The second flow channel（201）With the pump housing（1）On the first flow（103）Relatively described motor shaft（4）The position of axis
Put identical, shape, size are identical.
6. vacuum self priming pump according to claim 1, it is characterised in that also include being sleeved on the motor shaft（4）On
Axle sleeve（9）, it is arranged on the axle sleeve（9）The mechanical seal in outside（8）, and it is fixed on the pump cover（2）On machine sealed cover
（7）.
7. vacuum self priming pump according to claim 1, it is characterised in that the impeller（3）End face and the pump housing（1）It
Between gap（a）For 0.08 ~ 0.2mm, the impeller（3）Other end and the pump cover（2）Between gap（b）For 0.08 ~
0.2mm。
8. the vacuum self priming pump according to claim 1 or 3, it is characterised in that the pump housing（1）, the pump cover（2）Material
For stainless steel or steel alloy, the impeller（3）Material is Hastelloy.
9. the vacuum self priming pump according to claim 1 or 3, it is characterised in that the pump housing（1）, the pump cover（2）Material
For engineering plastics, the impeller（3）Material is Hastelloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720680622.2U CN206816503U (en) | 2017-06-13 | 2017-06-13 | Vacuum self priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720680622.2U CN206816503U (en) | 2017-06-13 | 2017-06-13 | Vacuum self priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816503U true CN206816503U (en) | 2017-12-29 |
Family
ID=60759861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720680622.2U Active CN206816503U (en) | 2017-06-13 | 2017-06-13 | Vacuum self priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821819A (en) * | 2019-10-28 | 2020-02-21 | 宝鸡市隆庆金属材料制品厂 | Stainless steel pump cover of fluid pump, fluid pump and machining method of pump cover |
-
2017
- 2017-06-13 CN CN201720680622.2U patent/CN206816503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821819A (en) * | 2019-10-28 | 2020-02-21 | 宝鸡市隆庆金属材料制品厂 | Stainless steel pump cover of fluid pump, fluid pump and machining method of pump cover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207989408U (en) | A kind of energy-saving corrosion-resisting filtering electric pump | |
| CN206816503U (en) | Vacuum self priming pump | |
| CN106246559B (en) | A kind of Double pump body double-suction type canned motor pump | |
| CN208380871U (en) | A kind of self-balanced multiple-stage cryogenic pump | |
| CN110080991A (en) | A kind of vertical single stage Piping Centrifugal Pumps | |
| CN106224286A (en) | The guide vane structure of band floating choma | |
| CN206035843U (en) | Energy -efficient vertical pipeline centrifugal pump that singly inhales | |
| CN103573692B (en) | A kind of Multifunctional self sucking centrifugal pump impeller vane structure | |
| CN201083207Y (en) | Partial-flow pump | |
| CN107100856A (en) | A kind of heavy duty detergent high suction depth formula dry type double entry pump | |
| CN108194382B (en) | Coaxial double-head centrifugal pump | |
| CN204984912U (en) | Novel vertical multistage pump of efficient | |
| CN206035832U (en) | Open multistage centrifugal pump in double feed inlet double suction level | |
| CN206889278U (en) | A kind of heavy duty detergent high suction depth formula dry type double entry pump | |
| CN209294063U (en) | A kind of mono-hull multistage pump | |
| CN207686995U (en) | It is pumped without reliable float is blocked | |
| CN106545496A (en) | Sleeping suction multi-stage pipeline pump | |
| CN206988124U (en) | Pendular ring type self-priming centrifugal pump | |
| CN207795594U (en) | A kind of vertical double suction self priming pump | |
| CN206071887U (en) | A kind of direct-connected twin-stage low-temperature centrifugation pump configuration | |
| CN205744475U (en) | A kind of double-stage self priming pump of band spiral pumping chamber | |
| CN109695574A (en) | A kind of vertical double suction non-sealing self-sucking pump | |
| CN109779974A (en) | A kind of vehicle-mounted fire water monitor water supply pump | |
| CN201827086U (en) | High-efficiency energy-saving vertical type pitot pump | |
| CN209800238U (en) | Water inlet pipe of water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |