CN109441843A - A kind of immersible pump - Google Patents
A kind of immersible pump Download PDFInfo
- Publication number
- CN109441843A CN109441843A CN201811639631.2A CN201811639631A CN109441843A CN 109441843 A CN109441843 A CN 109441843A CN 201811639631 A CN201811639631 A CN 201811639631A CN 109441843 A CN109441843 A CN 109441843A
- Authority
- CN
- China
- Prior art keywords
- pump housing
- motor
- sealing
- immersible pump
- fairing cap
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000001052 transient effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009189 diving Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to technical field of fluid delivery, are related to a kind of immersible pump, and which solve in the runner of existing immersible pump the problems such as pressure transient.This immersible pump includes the pump housing, the pump housing offers inner cavity and water inlet, motor is fixed in inner cavity, impeller is arranged on the output shaft of motor, there is fairing cap between impeller and water inlet, the setting of the inner wall interval of fairing cap and the pump housing, and it is combined with each other the diversion cavity for being formed and being connected with water inlet, the sealing unit that the two can be made to form sealing is additionally provided between fairing cap and the pump housing.Since design has sealing unit between fairing cap and the pump housing, so that the runner etc. of diversion cavity, impeller periphery, separates with the other region of the pump housing, gas leak is avoided to cause the flowpath pressure in pump unstable, the flowpath pressure stability in pump is improved, and then improves the operation stability of this immersible pump.
Description
Technical field
The invention belongs to technical field of fluid delivery, are related to a kind of immersible pump.
Background technique
Immersible pump is the important equipment of deep-well water lift, and when use, entire unit pulled the plug work, and water is extracted earth's surface,
Be domestic water, mine speedily carry out rescue work, industry cooling, the fields such as field irrigation.
China patent CN 206753925U discloses a kind of amphibious pump of block-resistant type ultra low water level land diving comprising outer
Shell, motor, sump, motor case, flow guiding disc, cover board, water conservancy diversion chamber, impeller, suction nozzle and pedestal are provided in outer housing
Motor and sump, motor are arranged in motor case, and motor case half body is accommodated in sump, the fixed shape on the cover board of flow guiding disc
At water conservancy diversion chamber, cover board is fixed on motor case, and motor shaft end is provided with impeller, and impeller is accommodated in diversion cavity room, water conservancy diversion
Disk outer surface is provided with support, and suction nozzle is provided in support, and pedestal covering suction nozzle is simultaneously fixed on outer casing bottom.It, can after pump operation
Water is drawn in pump by suction nozzle by forming negative pressure, then is discharged by water outlet.
But after water pump operation, negative pressure will form inside water pump, and due to existing between cooperation between flow guiding disc and pedestal
Gap, the gap will lead to the pressure transient in water pump, to influence the operation stability of water pump.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of immersible pump is proposed, the present invention is wanted
The technical issues of solution, is: how by improving the flowpath pressure stability that it is internal in water pump operation, to improve water pump
Operation stability.
Object of the invention can be realized by the following technical scheme:
A kind of immersible pump, which is characterized in that the immersible pump includes the pump housing, and the pump housing offers inner cavity and water inlet,
It is fixed with motor in the inner cavity, impeller is arranged on the output shaft of the motor, has between the impeller and water inlet and leads
The inner wall interval of stream lid, the fairing cap and the pump housing is arranged, and is combined with each other the diversion cavity for being formed and being connected with the water inlet,
The sealing unit that the two can be made to form sealing is additionally provided between the fairing cap and the pump housing.
Its working principles are as follows: motor rotates impeller rotation, diversion cavity and water inlet meeting when this diving pump operation
Negative pressure is formed, fluid enters from water inlet, and by pumping intracorporal runner, finally flows out from the water outlet of immersible pump.Due to
Design has sealing unit between fairing cap and the pump housing so that the runner etc. of diversion cavity, impeller periphery, with the other region of the pump housing every
It opens, avoids gas leak from causing the flowpath pressure in pump unstable, improve the flowpath pressure stability in pump, and then improve this diving
The operation stability of pump.
In a kind of above-mentioned immersible pump, the inner surface of the pump housing bottom offers annular groove one, the fairing cap
Lower surface offers annular groove two, and the sealing unit includes sealing ring one, the outer end of the sealing ring one and inner end difference
It is embedded in the annular groove one and annular groove two.Design has sealing ring one, can be recessed with annular groove one and annular respectively
Slot two is formed by elastic deformation and is sealed, and the gas leak of pump inner flow passage is effectively avoided, to keep the pressure for pumping inner flow passage more steady
It is fixed；And when pump housing runner forms negative pressure, sealing ring one can be mobile towards the direction of fairing cap under pressure, so that
Air-tightness between sealing ring one and fairing cap is more preferable, and is herein often also the place that air-flow is easiest to leakage, therefore improves
Air-tightness herein can further avoid air-flow and leak, to ensure the pressure stability in runner, improve the operation of immersible pump
Stability.
In a kind of above-mentioned immersible pump, the lower surface of the fairing cap is coaxially arranged with annular convex platform one and annular convex platform
Two, the annular convex platform one is located at two inside of annular convex platform and the two is combined with each other to form the annular groove two；The sealing
The outer end of circle one and the slot bottom of annular groove one mutually recline, and the medial surface of the sealing ring one is affixed with the annular convex platform one
It leans on, the inner end of the sealing ring one is in contact with the slot bottom of the annular groove two.Shape between sealing ring one and the pump housing, fairing cap
It is sealed at three, sealing performance can be effectively improved.
In a kind of above-mentioned immersible pump, the motor outer is equipped with stator sleeve, is fixed with diversion seat on the stator sleeve, institute
It states fairing cap to be fixed on the diversion seat, offer coaxial through-hole one at the center of the diversion seat and fairing cap respectively and leads to
Hole two, the output shaft of the motor sequentially pass through the through-hole one and through-hole two.
In a kind of above-mentioned immersible pump, the impeller set is set on output shaft, and the outer end of the output shaft offers circlip
Slot, interlocking, which has, on the jump-ring slot is affixed the circlip leaned on the impeller outer surface.After design has circlip, motor rotation can avoid
When impeller along axial jump.
In a kind of above-mentioned immersible pump, the outer end of the motor is fixed with bearing block, and the output shaft of motor passes through the bearing
, it is arranged with sealing ring two on the output shaft, the sealing ring two is between the motor end face and bearing block and is formed
Sealing.After design has sealing ring two, it can avoid the fluid in runner and enter motor influence motor normal operation.
Tight fit and seal groove, the sealing are formed in a kind of above-mentioned immersible pump, between the bearing block and stator sleeve
Sealing ring three is embedded in slot.Design has sealing ring three, and avoidable fluid enters in stator sleeve, and then also can avoid fluid and enter
Motor normal operation is influenced in motor.
In a kind of above-mentioned immersible pump, is formed between the medial surface of the pump housing and the lateral surface of stator sleeve and passed through for fluid
Runner, be further fixed on compacting ring in the pump housing, the compacting ring is sheathed on the stator sleeve, the upper end of the stator sleeve
Fold outwardly forms boss, and the upper end of the compacting ring forms sealing close to the boss and by sealing ring four.Design has pressure
After collar, support can be formed to stator sleeve and fixed.
In a kind of above-mentioned immersible pump, it is provided with the valve chamber being connected with the runner in the pump housing, in the valve chamber
It is movably set with ball, the upper surface of the compacting ring can be in contact to form support with the ball；It is offered on the pump housing
The gas vent being connected with the valve chamber, it is close that the ball can be moved to realization at the gas vent under action of a fluid
Envelope.When immersible pump just brings into operation, the gas in runner can be discharged by gas vent, at this time ball under self gravitation effect with
Compacting ring mutually reclines, and will not block gas vent；After being full of fluid in runner, ball can be moved towards gas vent under action of a fluid
It is dynamic to realize sealing, avoid fluid leakage.
Compared with prior art, the invention has the following advantages that
1, there is sealing unit due to designing between fairing cap and the pump housing, so that the runner etc. of diversion cavity, impeller periphery, with pump
The other region of body separates, and avoids gas leak from causing the flowpath pressure in pump unstable, improves the flowpath pressure stability in pump, into
And improve the operation stability of this immersible pump；
2, design has sealing ring one, can be formed and be sealed by elastic deformation with annular groove one and annular groove two respectively,
The gas leak of pump inner flow passage is effectively avoided, to keep the pressure for pumping inner flow passage more stable；And when pump housing runner forms negative pressure
When, sealing ring one can be mobile towards the direction of fairing cap under pressure, so that the gas between sealing ring one and fairing cap
Close property is more preferable；
3, when immersible pump just brings into operation, the gas in runner can be discharged by gas vent, and ball is in self gravity at this time
Effect is lower mutually to recline with compacting ring, will not block gas vent；After being full of fluid in runner, ball can court under action of a fluid
Gas vent is mobile to realize sealing, avoids fluid leakage.
Detailed description of the invention
Fig. 1 is the sectional view of this immersible pump.
Fig. 2 is the partial enlarged view of Fig. 1.
Fig. 3 is the structural schematic diagram that fairing cap is matched with the pump housing.
Fig. 4 is the structural schematic diagram that bearing block is matched with motor and stator sleeve.
Fig. 5 is the structural schematic diagram that ball is matched with gas vent.
In figure, 1, the pump housing；2, water inlet；3, output shaft；4, impeller；5, fairing cap；6, diversion cavity；7, sealing unit；8,
Annular groove one；9, annular groove two；10, annular convex platform one；11, annular convex platform two；12, diversion seat；13, through-hole one；14, lead to
Hole two；15, jump-ring slot；16, circlip；17, bearing block；18, sealing ring two；19, sealing ring three；20, runner；21, compacting ring；
22, boss；23, sealing ring four；24, valve chamber；25, ball；26, gas vent；27, sealing ring one；28, motor；29, stator sleeve.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1 and Figure 2, immersible pump includes the pump housing 1, and the pump housing 1 offers inner cavity and water inlet 2, is fixed with electricity in inner cavity
Machine 28, in the present embodiment, which is preferably direct current generator 28, is arranged with impeller 4 on the output shaft 3 of motor 28, impeller 4 with
There is fairing cap 5, the inner wall interval setting of fairing cap 5 and the pump housing 1 between water inlet 2, and be combined with each other formation and 2 phase of water inlet
The diversion cavity 6 of connection is additionally provided with the sealing unit 7 that the two can be made to form sealing between fairing cap 5 and the pump housing 1.
In the present embodiment, the inner surface of 1 bottom of the pump housing offers annular groove 1, and the lower surface of fairing cap 5 offers ring
Connected in star 29, sealing unit 7 include sealing ring 1, and the outer end and inner end of sealing ring 1 are embedded in annular groove 1 respectively
In annular groove 29.Preferably, the lower surface of fairing cap 5 is coaxially arranged with annular convex platform 1 and annular convex platform 2 11,
Annular convex platform 1 is located at 2 11 inside of annular convex platform and the two is combined with each other to form annular groove 29；Outside sealing ring 1
It holds and mutually reclines with the slot bottom of annular groove 1, medial surface and one 10 phase of annular convex platform of sealing ring 1 recline, sealing ring 1
Inner end be in contact with the slot bottom of annular groove 29.As other schemes, other elements are can also be used in sealing unit 7, as long as energy
Enough seal the gap between fairing cap 5 and the pump housing 1.
In order to realize the installation of fairing cap 5, it is arranged with stator sleeve 29 as shown in Figure 2 and Figure 3, outside motor 28, on stator sleeve 29
It is fixed with diversion seat 12, fairing cap 5 is fixed on the diversion seat 12, and the fixation of fairing cap 5 and diversion seat 12 can pass through screw
Fasteners are waited to realize.Coaxial through-hole 1 and through-hole 2 14 are offered at the center of diversion seat 12 and fairing cap 5 respectively, electricity
The output shaft 3 of machine 28 sequentially passes through the through-hole 1 and through-hole 2 14.Impeller 4 is sheathed on output shaft, and the outer end of output shaft 3 is opened
Equipped with jump-ring slot 15, interlocking has the circlip 16 mutually to recline with 4 outer surface of impeller on jump-ring slot 15.Fairing cap 5 in this implementation is
Realized by diversion seat 12 fixed, as other schemes, fairing cap 5 is directly fixedly connected with stator sleeve 29 can also.
As shown in Figure 1, Figure 2, Figure 4 shows, in order to avoid the fluid in pump enters motor 28, the outer end of motor 28 is fixed with bearing
Seat 17, the fixation of the two can equally be realized by way of the fasteners such as screw.The output shaft of motor 28 passes through the bearing block
17, sealing ring 2 18 is arranged on output shaft, and sealing ring 2 18 is located between 28 end face of motor and bearing block 17 and forms sealing.
Tight fit and seal groove is formed between bearing block 17 and stator sleeve 29, is embedded with sealing ring 3 19 in seal groove.
As shown in Figure 1, shown in Figure 5, the runner passed through for fluid is formed between the medial surface of the pump housing 1 and the lateral surface of stator sleeve 29
20, compacting ring 21 is further fixed in the pump housing 1, and compacting ring 21 is sheathed on stator sleeve 29, and the upper end of stator sleeve 29 turns down shape outwardly
At boss 22, the upper end of compacting ring 21 forms sealing close to boss 22 and by sealing ring 4 23.It is provided in the pump housing 1 and runner
20 valve chambers 24 being connected are movably set with ball 25 in valve chamber 24, and the upper surface of compacting ring 21 can connect with the ball 25
Touching forms support；The gas vent 26 being connected with valve chamber 24 is offered on the pump housing 1, ball 25 can move under action of a fluid
Sealing is realized to gas vent 26.In the present embodiment, ball 25, which is preferably steel ball as other schemes, can also be used other gold
Belong to material, ceramics etc., it is even internal be metal, the mode that outside is rubber can also.
Working principle of the present invention is as follows: since design has sealing unit 7 between fairing cap 5 and the pump housing 1, so that diversion cavity
6, the runner 20 etc. on 4 periphery of impeller is separated with the other region of the pump housing 1, and gas leak is avoided to lead to 20 pressure of runner in pump not
Surely, 20 pressure stability of runner in pump is improved, and then improves the operation stability of this immersible pump.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (9)
1. a kind of immersible pump, which is characterized in that the immersible pump includes the pump housing (1), and the pump housing (1) offers inner cavity and water inlet
Mouthful (2) are fixed with motor (28) in the inner cavity, are arranged with impeller (4), the leaf on the output shaft (3) of the motor (28)
Taking turns between (4) and water inlet (2) has fairing cap (5), and the inner wall interval of the fairing cap (5) and the pump housing (1) is arranged, and mutually
Combination forms the diversion cavity (6) being connected with the water inlet (2), is additionally provided with energy between the fairing cap (5) and the pump housing (1)
The two is enough set to form the sealing unit (7) of sealing.
2. immersible pump according to claim 1, which is characterized in that the inner surface of the pump housing (1) bottom offers annular
Groove one (8), the lower surface of the fairing cap (5) offer annular groove two (9), and the sealing unit (7) includes sealing ring
One (27), the outer end and inner end of the sealing ring one (27) are embedded in the annular groove one (8) and annular groove two (9) respectively
It is interior.
3. immersible pump according to claim 2, which is characterized in that the lower surface of the fairing cap (5) is coaxially arranged with ring
Shape boss one (10) and annular convex platform two (11), the annular convex platform one (10) is located on the inside of annular convex platform two (11) and the two phase
Mutually combination forms the annular groove two (9)；The outer end of the sealing ring one (27) and the slot bottom of annular groove one (8) are affixed
It leans on, the medial surface of the sealing ring one (27) mutually reclines with the annular convex platform one (10), the inner end of the sealing ring one (27)
It is in contact with the slot bottom of the annular groove two (9).
4. immersible pump according to claim 1 or 2 or 3, which is characterized in that be arranged with stator sleeve outside the motor (28)
(29), it is fixed with diversion seat (12) on the stator sleeve (29), the fairing cap (5) is fixed on the diversion seat (12), described
Coaxial through-hole one (13) and through-hole two (14), the motor are offered at the center of diversion seat (12) and fairing cap (5) respectively
(28) output shaft (3) sequentially passes through the through-hole one (13) and through-hole two (14).
5. immersible pump according to claim 1 or 2 or 3, which is characterized in that the impeller (4) is sheathed on output shaft (3)
On, the outer end of the output shaft (3) offers jump-ring slot (15), there is with the impeller (4) outside interlocking on the jump-ring slot (15)
The circlip (16) that surface mutually reclines.
6. immersible pump according to claim 4, which is characterized in that the outer end of the motor (28) is fixed with bearing block (3),
The output shaft (3) of motor (28) passes through the bearing block (17), is arranged with sealing ring two (18) on the output shaft (3), described close
Seal two (18) is between the motor (28) end face and bearing block (17) and forms sealing.
7. immersible pump according to claim 6, which is characterized in that close-fitting between the bearing block (17) and stator sleeve (29)
Seal groove is closed and formed, is embedded with sealing ring three (19) in the seal groove.
8. immersible pump according to claim 7, which is characterized in that the medial surface of the pump housing (1) and stator sleeve (29)
The runner (20) passed through for fluid is formed between lateral surface, is further fixed on compacting ring (21), the compacting ring in the pump housing (1)
(21) it is sheathed on the stator sleeve (29), the upper end of the stator sleeve (29) turns down outwardly forms boss (22), the compression
The upper end for enclosing (21) forms sealing close to the boss (22) and by sealing ring four (23).
9. immersible pump according to claim 8, which is characterized in that be provided with and the runner (20) in the pump housing (1)
The valve chamber (24) being connected, the valve chamber (24) is interior to be movably set with ball (25), and the upper surface of the compacting ring (21) can
It is in contact to form support with the ball (25)；The gas vent being connected with the valve chamber (24) is offered on the pump housing (1)
(26), the ball (25), which can be moved under action of a fluid at the gas vent (26), realizes sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639631.2A CN109441843A (en) | 2018-12-29 | 2018-12-29 | A kind of immersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639631.2A CN109441843A (en) | 2018-12-29 | 2018-12-29 | A kind of immersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109441843A true CN109441843A (en) | 2019-03-08 |
Family
ID=65540339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811639631.2A Pending CN109441843A (en) | 2018-12-29 | 2018-12-29 | A kind of immersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441843A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0648934A1 (en) * | 1993-10-13 | 1995-04-19 | Ebara Corporation | Full-circumferential flow pump |
| CN2212673Y (en) * | 1994-12-02 | 1995-11-15 | 姜培木 | Centrifugal pump |
| CN2236033Y (en) * | 1995-03-30 | 1996-09-25 | 陈和祺 | Centrifugal pump structure |
| US20120219406A1 (en) * | 2009-10-23 | 2012-08-30 | Yuanmin Liang | Pipeline pump shaped by stamping and welding |
| CN103016361A (en) * | 2012-12-12 | 2013-04-03 | 君禾泵业股份有限公司 | Low-water-sucking water pump |
| CN203560108U (en) * | 2013-12-02 | 2014-04-23 | 温岭市金翼机电有限公司 | Submersible pump |
| CN107044427A (en) * | 2017-05-23 | 2017-08-15 | 苏州优德通力科技有限公司 | A kind of amphibious pump of block-resistant type ultra low water level land diving |
| CN209586710U (en) * | 2018-12-29 | 2019-11-05 | 利欧集团浙江泵业有限公司 | A kind of immersible pump |
-
2018
- 2018-12-29 CN CN201811639631.2A patent/CN109441843A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0648934A1 (en) * | 1993-10-13 | 1995-04-19 | Ebara Corporation | Full-circumferential flow pump |
| CN2212673Y (en) * | 1994-12-02 | 1995-11-15 | 姜培木 | Centrifugal pump |
| CN2236033Y (en) * | 1995-03-30 | 1996-09-25 | 陈和祺 | Centrifugal pump structure |
| US20120219406A1 (en) * | 2009-10-23 | 2012-08-30 | Yuanmin Liang | Pipeline pump shaped by stamping and welding |
| CN103016361A (en) * | 2012-12-12 | 2013-04-03 | 君禾泵业股份有限公司 | Low-water-sucking water pump |
| CN203560108U (en) * | 2013-12-02 | 2014-04-23 | 温岭市金翼机电有限公司 | Submersible pump |
| CN107044427A (en) * | 2017-05-23 | 2017-08-15 | 苏州优德通力科技有限公司 | A kind of amphibious pump of block-resistant type ultra low water level land diving |
| CN209586710U (en) * | 2018-12-29 | 2019-11-05 | 利欧集团浙江泵业有限公司 | A kind of immersible pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209586710U (en) | A kind of immersible pump | |
| CN207879606U (en) | A kind of water-ring vacuum pump | |
| CN204921459U (en) | Sealing device of centrifugal pump | |
| CN109441843A (en) | A kind of immersible pump | |
| CN106168221A (en) | A kind of duct type single-stage double-suction centrifugal pump | |
| CN206035836U (en) | Novel powerful self priming pump | |
| CN205243923U (en) | Open double suction centrifugal pump in level | |
| CN206129615U (en) | Circulating water horizontal centrifugal pump | |
| CN208268080U (en) | A kind of self-priming apparatus and a kind of centrifugal pump | |
| CN207906164U (en) | A kind of denoising device of self-priming immersible pump | |
| CN208138157U (en) | Double-suction submerged pump | |
| CN209621706U (en) | Impeller seals mechanism and centrifugal pump | |
| CN209430429U (en) | A kind of magnetic drive pump equipped with protective cover | |
| CN207975040U (en) | A kind of water pump cover | |
| CN208442031U (en) | A kind of water pump | |
| CN208442088U (en) | A kind of double entry pump | |
| CN206017109U (en) | A kind of Miniature liquid pump | |
| CN206830493U (en) | Brushless direct-current draining pump | |
| CN204827958U (en) | Compact submersible pump | |
| CN108980054A (en) | Vertical high-efficiency energy-saving automatic control self-priming scale pump | |
| CN208870793U (en) | A kind of follow-on centrifugal pump | |
| CN203641113U (en) | Water inlet structure of submerged pump | |
| CN209743170U (en) | Rotor assembly of canned motor pump | |
| CN108730201A (en) | Double-suction submerged pump | |
| CN215170806U (en) | Double-suction submersible centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |