CN208778264U - A kind of submersible pump with axial-flow type sand-prevention structure - Google Patents
A kind of submersible pump with axial-flow type sand-prevention structure Download PDFInfo
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- CN208778264U CN208778264U CN201821556680.5U CN201821556680U CN208778264U CN 208778264 U CN208778264 U CN 208778264U CN 201821556680 U CN201821556680 U CN 201821556680U CN 208778264 U CN208778264 U CN 208778264U
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- Prior art keywords
- axial
- pump
- guide sleeve
- top chock
- submersible pump
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Abstract
The utility model belongs to the technical field of submersible pump, it is related to a kind of submersible pump with axial-flow type sand-prevention structure, including motor, water pump and motor-driven shaft, top chock is provided between the motor and water pump, water inlet joint is fixed on top chock, top chock is successively arranged in the shaft, mechanical seal, axial wheel, axle sleeve and impeller of electrical pump, flow guide sleeve is fixed on the top chock, flow guide sleeve includes the annular outer cover and annular inner casing of coaxial arrangement, inner casing is lower than shell, casing is set to except axial wheel, inner casing is sheathed on except mechanical seal sound ring combined face, the flow guide sleeve and axial wheel form an axial-flow pump, gap between flow guide sleeve lower end case and inner casing is water inlet, water conservancy diversion set upper side is water outlet.The axial-flow type sand-prevention structure of submersible pump provided by the utility model gets rid of husky set compared to traditional, and dustproof effect is more preferable, improves the service life of mechanical seal, and then extend the service life of submersible pump.
Description
Technical field
The utility model belongs to the technical field of submersible pump, is related to a kind of diving electricity with axial-flow type sand-prevention structure
Pump.
Background technique
Submersible pump refers to pump housing impeller and the motor of impeller driven all to pull the plug a kind of water pump of work, submersible pump
Use environment generally all contain silt, require motor part that there is sand-prevention structure at work, the ability of sand-prevention structure is straight
The service life for influencing mechanical seal is connect, to influence the service life of electric pump.
Traditional husky structure of getting rid of is to get rid of husky set, and most of silt can be thrown away by getting rid of husky set, but have fraction silt by turning
Axis can be deposited near outboard mechanical seal, cannot be discharged, can be cumulative as electric pump is run, and shaft drives mechanical
When sealing high-speed rotation, silt can be rotated with shaft, and silt is movable near mechanical seal sound ring combined face, external mechanical
Seal easy to wear, so as to cause mechanical seal failure, silt enters built-in machines sealing along shaft, in silt can similarly make
Mechanical seal failure is set, so as to cause motor entering water, burns motor.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of submersible pump with axial-flow type sand-prevention structure,
Husky set is got rid of compared to traditional, dustproof effect is more preferable, improves the service life of mechanical seal, and then extend the use of submersible pump
Service life.
In order to solve the above technical problems, the purpose of this utility model is achieved by following technical proposals:
A kind of submersible pump with axial-flow type sand-prevention structure, including motor, water pump and motor-driven shaft, the electricity
It is provided with top chock between machine and water pump, water inlet joint is fixed on top chock, is successively arranged with upper bearing (metal) in the shaft
Seat, mechanical seal, axial wheel, axle sleeve and impeller of electrical pump, flow guide sleeve is fixed on the top chock, and flow guide sleeve includes coaxial
The annular outer cover of setting and annular inner casing, inner casing are connected with shell lower end, and inner casing is lower than shell, casing set on axial wheel it
Outside, inner casing is sheathed on except mechanical seal sound ring combined face, between shell and axial wheel, between inner casing and mechanical seal
There are gap, the flow guide sleeve and axial wheel form an axial-flow pump, and the gap between flow guide sleeve lower end case and inner casing is
Water inlet, the opening of water conservancy diversion set upper side are water outlet.
Above-mentioned top chock, mechanical seal, flow guide sleeve, axial wheel, axle sleeve, impeller of electrical pump and shaft are coaxially disposed,
The flow guide sleeve and mechanical seal are placed in inside water inlet joint, and water inlet joint is fixed by bolt and top chock.
Above-mentioned mechanical seal is installed in the groove of top chock upper end, and the axial wheel is located on the shaft shoulder, and the shaft shoulder arrives
The distance of top chock bottom portion of groove is the mounting height of mechanical seal, and the upper end of impeller of electrical pump, which is provided with, tightens nut, tightens
Nut axially position impeller of electrical pump, axle sleeve and axial wheel.
The lower end of above-mentioned flow guide sleeve is provided with fixed plate, and fixed plate extends outward shell by inner casing, and the fixed plate is prolonged
The part for stretching out shell is provided with mounting hole, and flow guide sleeve is bolted connection on the boss of top chock, the boss
The outer end face of top chock groove is set.
Above-mentioned boss have it is multiple, be circumferentially uniformly distributed, the fixed plate, the quantity of mounting hole are identical as boss.
Above-mentioned axial wheel and impeller of electrical pump are interference fitted between shaft, and are connect by key with shaft.
Clearance fit between above-mentioned axle sleeve and shaft, the lower end of axle sleeve and axial wheel connect, the upper end of axle sleeve with
Impeller of electrical pump connects.
The height of above-mentioned shell is higher than the height of axial wheel wheel hub.
The height of above-mentioned inner casing is higher than the secondary height of mechanical sealing linkage ring friction.
Above-mentioned bolt is cross slot bolt.
Compared to the prior art the utility model, has the following beneficial effects:
1, the flow guide sleeve in the utility model water inlet joint and axial wheel constitute an axial-flow pump, in use, in axis stream
Under the action of pump, silt will not be deposited near mechanical seal working face, but the water flow in flow guide sleeve flows out flow guide sleeve,
Into in impeller of electrical pump；Influence of the silt to mechanical seal substantially reduces, and improves the service life of mechanical seal, to extend
The service life of electric pump.
2, the inner casing of the utility model flow guide sleeve ensure that the water with silt can not touch the dynamic and static ring of mechanical seal
Faying face further avoids influence of the silt to mechanical seal.
If the sound ring position of mechanical seal just has silt 3, before submersible pump operation starts, when submersible pump starts
When, axial wheel is same as the axial-flow pump that flow guide sleeve forms, and silt herein can be sucked out, and be discharged into impeller of electrical pump.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is the perspective view of the utility model axial wheel；
Fig. 4 is the top view of the utility model axial wheel；
Fig. 5 is the B-B cross-sectional view of Fig. 4；
Fig. 6 is the perspective view of the utility model flow guide sleeve；
Fig. 7 is the top view of the utility model flow guide sleeve；
Fig. 8 is the C-C cross-sectional view of Fig. 7；
In figure: 1, shaft；11, the shaft shoulder；12, nut is tightened；13, key；2, top chock；21, boss；3, water inlet joint；4,
Mechanical seal；41, mechanical sealing linkage ring friction is secondary；5, axial wheel；51, axial wheel wheel hub；6, axle sleeve；7, impeller of electrical pump；
8, flow guide sleeve；81, shell；82, inner casing；83, water inlet；84, water outlet；85, fixed plate；86, mounting hole；9, bolt.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing, referring to Fig. 1-8:
A kind of submersible pump with axial-flow type sand-prevention structure, including motor, water pump and motor-driven shaft 1, it is described
It is provided with top chock 2 between motor and water pump, water inlet joint 3 is fixed on top chock 2, is successively arranged in the shaft 1
Top chock 2, mechanical seal 4, axial wheel 5, axle sleeve 6 and impeller of electrical pump 7 are fixed with flow guide sleeve 8 on the top chock 2,
Flow guide sleeve 8 includes that the annular outer cover 81 of coaxial arrangement and annular inner casing 82, inner casing 82 are connected with 81 lower end of shell, and inner casing 82 is lower than
Shell 81, shell 81 are sheathed on except axial wheel 5, and inner casing 82 is sheathed on except 4 sound ring combined face of mechanical seal, shell 81
There are gap, the flow guide sleeve 8 and the compositions of axial wheel 5 one between axial wheel 5, between inner casing 82 and mechanical seal 4
A axial-flow pump, the gap between 8 lower end case 81 of flow guide sleeve and inner casing 82 are water inlet 83, and the opening of 8 upper end of flow guide sleeve is
The mouth of a river 84.
The working principle of the utility model is as follows: submersible pump work when, the water containing silt by water inlet joint 3 enter into
Water section is intracavitary, and most of water is directly entered impeller of electrical pump 7, and another part is entered in axial wheel 5 by flow guide sleeve water inlet 83,
It is come out from flow guide sleeve water outlet 84, into impeller of electrical pump 7, the water finally entered from water inlet joint 3 passes through the effect conversion of impeller of electrical pump 7
For lift.
The shell 81 of axial wheel 5 and flow guide sleeve 8 is combined into axial-flow pump, and axial wheel 5 is as the rotation of shaft 1 is mechanical
It can be converted into pressure energy and kinetic energy, i.e., due to the effect of axial-flow pump, the water containing silt enters axis stream leaf by flow guide sleeve water inlet 83
Wheel 5, comes out from flow guide sleeve water outlet 84；In addition, within the scope of water inlet joint inner cavity, due to the effect of axial-flow pump, so that blower inlet casing
The flow velocity of liquid velocity ratio elsewhere near water inlet 83 is high, is more advantageous to the flowing of silt.
The mounting structure of above-mentioned each component is as follows:
Above-mentioned top chock 2, mechanical seal 4, flow guide sleeve 8, axial wheel 5, axle sleeve 6, impeller of electrical pump 7 and shaft 1 are same
Axis setting, the flow guide sleeve 8 and mechanical seal 4 are placed in inside water inlet joint 3, and water inlet joint 3 is solid by bolt 9 and top chock 2
It is fixed.
Above-mentioned mechanical seal 4 is installed in the groove of 2 upper end of top chock, and the axial wheel 5 is located on the shaft shoulder 11, axis
The distance of shoulder 11 to 2 bottom portion of groove of top chock is the mounting height of mechanical seal 4, and the upper end of impeller of electrical pump 7, which is provided with, tightens
Nut 12 tightens 12 axially position impeller of electrical pump 7 of nut, axle sleeve 6 and axial wheel 5.
The lower end of above-mentioned flow guide sleeve 8 is provided with fixed plate 85, and fixed plate 85 extends outward shell 81 by inner casing 82, described
The part that fixed plate 85 extends shell 81 is provided with mounting hole 86, and flow guide sleeve 8 is fastenedly connected by bolt 9 in top chock 2
Boss 21 on, the outer end face of 2 groove of top chock is arranged in the boss 21.
Above-mentioned boss 21 have it is multiple, be circumferentially uniformly distributed, the fixed plate 85, the quantity of mounting hole 86 and 21 phase of boss
Together.
Above-mentioned axial wheel 5 and impeller of electrical pump 7 are interference fitted between shaft 1, and are connect by key 13 with shaft 1,
Shaft 1 transmits torque by key 13, so that axial wheel 5, impeller of electrical pump 7 and shaft 1 rotate synchronously.
Clearance fit between above-mentioned axle sleeve 6 and shaft 1, the lower end of axle sleeve 1 and axial wheel 5 connect, axle sleeve 1 it is upper
End is connected with impeller of electrical pump 7.
Above-mentioned bolt 9 is preferably cross slot bolt.
Preferably, the height of above-mentioned shell is higher than the height of axial wheel wheel hub, the height of above-mentioned inner casing is higher than machinery
The secondary height of moving sealing ring friction.
Since 82 height of inner casing of flow guide sleeve 8 is higher than mechanical sealing linkage ring friction pair 41；What silt flowed in flow guide sleeve 8
In the process, silt will not enter secondary 41 or less the positions of mechanical sealing linkage ring friction, and silt is when by 82 upper surface of inner casing, only
The position of 41 or more mechanical sealing friction pairs can be touched, and the centrifugal force that mechanical seal 4 itself rotation generates also can be silt
It throws away, to flow out flow guide sleeve 8 axially into axial wheel 5 together.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model
Within the scope of.
Claims (8)
1. a kind of submersible pump with axial-flow type sand-prevention structure, including motor, water pump and motor-driven shaft (1), described
It is provided between motor and water pump top chock (2), water inlet joint (3) is fixed on top chock (2), which is characterized in that described
Top chock (2), mechanical seal (4), axial wheel (5), axle sleeve (6) and impeller of electrical pump (7) are successively arranged in shaft (1),
It is fixed with flow guide sleeve (8) on the top chock (2), flow guide sleeve (8) includes in the annular outer cover (81) and annular of coaxial arrangement
Shell (82), inner casing (82) are lower than shell (81), and shell (81) gap is sheathed on except axial wheel (5), inner casing (82) gap set
Except mechanical seal (4) sound ring combined face, the flow guide sleeve (8) and axial wheel (5) form an axial-flow pump, water conservancy diversion
Covering the gap between (8) lower end case (81) and inner casing (82) is water inlet (83), and flow guide sleeve (8) upper end is water outlet (84).
2. a kind of submersible pump with axial-flow type sand-prevention structure according to claim 1, which is characterized in that the machinery
Sealing (4) is installed in the groove of top chock (2) upper end, and the axial wheel (5) is located on the shaft shoulder (11), and the shaft shoulder (11) arrives
The distance of top chock (2) bottom portion of groove is the mounting height of mechanical seal (4), and the upper end of impeller of electrical pump (7), which is provided with, tightens
Nut (12) tightens nut (12) axially position impeller of electrical pump (7), axle sleeve (6) and axial wheel (5).
3. a kind of submersible pump with axial-flow type sand-prevention structure according to claim 2, which is characterized in that the water conservancy diversion
The lower end of set (8) is provided with fixed plate (85), and fixed plate (85) extends outward shell (81), the fixed plate by inner casing (82)
(85) part for extending shell (81) is provided with mounting hole (86), and flow guide sleeve (8) is fastenedly connected by bolt (9) in upper bearing (metal)
On the boss (21) of seat (2), outer end face of boss (21) setting in top chock (2) groove.
4. a kind of submersible pump with axial-flow type sand-prevention structure according to claim 3, which is characterized in that the boss
(21) have it is multiple, be circumferentially uniformly distributed, the fixed plate (85), the quantity of mounting hole (86) are identical as boss (21).
5. a kind of submersible pump with axial-flow type sand-prevention structure according to claim 1, which is characterized in that the axis stream
Impeller (5) and impeller of electrical pump (7) are interference fitted between shaft (1), and are connect by key (13) with shaft (1).
6. a kind of submersible pump with axial-flow type sand-prevention structure according to claim 1, which is characterized in that the axle sleeve
(6) clearance fit between shaft (1), the lower end and axial wheel (5) of axle sleeve (6) connect, the upper end of axle sleeve (6) and electricity
Impeller of pump (7) connects.
7. a kind of submersible pump with axial-flow type sand-prevention structure according to claim 1, which is characterized in that the shell
(81) height is higher than the height of axial wheel wheel hub (51).
8. a kind of submersible pump with axial-flow type sand-prevention structure according to claim 1, which is characterized in that the inner casing
(82) height is higher than the height of mechanical sealing linkage ring friction secondary (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556680.5U CN208778264U (en) | 2018-09-22 | 2018-09-22 | A kind of submersible pump with axial-flow type sand-prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556680.5U CN208778264U (en) | 2018-09-22 | 2018-09-22 | A kind of submersible pump with axial-flow type sand-prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778264U true CN208778264U (en) | 2019-04-23 |
Family
ID=66162327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821556680.5U Withdrawn - After Issue CN208778264U (en) | 2018-09-22 | 2018-09-22 | A kind of submersible pump with axial-flow type sand-prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869330A (en) * | 2018-09-22 | 2018-11-23 | 浙江大元泵业股份有限公司 | A kind of submersible pump with axial-flow type sand-prevention structure |
-
2018
- 2018-09-22 CN CN201821556680.5U patent/CN208778264U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869330A (en) * | 2018-09-22 | 2018-11-23 | 浙江大元泵业股份有限公司 | A kind of submersible pump with axial-flow type sand-prevention structure |
| CN108869330B (en) * | 2018-09-22 | 2023-08-15 | 浙江大元泵业股份有限公司 | Submersible electric pump with axial-flow sand-proof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190423 Effective date of abandoning: 20230815 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190423 Effective date of abandoning: 20230815 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |