CN104763643B - Double-pipe high-absorbing injection type centrifugal pump for deep well - Google Patents
Double-pipe high-absorbing injection type centrifugal pump for deep well Download PDFInfo
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- CN104763643B CN104763643B CN201510078274.7A CN201510078274A CN104763643B CN 104763643 B CN104763643 B CN 104763643B CN 201510078274 A CN201510078274 A CN 201510078274A CN 104763643 B CN104763643 B CN 104763643B
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Abstract
The invention relates to the technical field of pumps for deep wells, and specifically relates to a double-pipe high-absorbing injection type centrifugal pump for a deep well. The centrifugal pump comprises a pump body, and a jet pump which is connected with the pump body; a water feeding cavity and a water discharging cavity are formed in the pump body; an impeller is arranged in the water discharging cavity; a first jetting device is arranged in the pump body; the water feeding cavity is communicated with a water inlet of the impeller through the first jetting device; the pump body further comprises a water discharging pipe which is communicated with an inner running channel of the first jetting device. The double-pipe high-absorbing injection type centrifugal pump for the deep well is applicable to the water pumping work in the deep well, and can achieve high pumping stroke, high water pumping height and large water pumping quantity; due to large water pumping quantity and high water pressure, a high pressure nozzle of the first jetting device in the pump body is difficulty blocked by foreign articles.
Description
Technical field
The present invention relates to deep-well pump technical field, and in particular to a kind of two-tube high suction of deep-well sprays centrifugal pump.
Background technology
At present, in deep-well water intaking, two kinds of equipment are generally adopted：One kind is immersible pump, and another kind is exactly deep well pump.
It is submersible motor that the operation principle of immersible pump is the motor of pump configuration, and pump integrally dives into the water with motor during work.
Due to submerged in water, sealing of motor etc. is required very high, product cost is higher, and safeguard, maintenance is difficult；Meanwhile, diving
The radial dimension of pump is larger, is difficult to be put in the less well of bore and fetches water.So the application of immersible pump is limited by larger.
Deep well pump can be divided into two kinds of forms again：One kind is multi-stag deep well pump, and another kind is jetting type deep well pump.Multi-stag
The pump housing and motor of deep well pump is separate.The pump housing typically adopts centrifugal multistage pump multiple centrifugal pump form, dives beneath the water.And motor is then arranged in
Ground.Connected using shaft coupling between the pump housing and motor, the axle of pump is very long, generally using segmentation connection.Such deep-well
It is high to there is the accuracy of manufacture and production cost in pump, installs complicated, and failure is more, and the shortcomings of inconvenient maintenance, application is also greatly limited
System.
And jetting type deep well pump because it has simply, the advantages of conveniently installing and safeguard, it is extensive with it is current
In deep-well water intaking.
But existing jetting type deep well pump still has deficiency, specific as follows：Current jetting type deep well pump is included
The pump housing and jet pump, are provided with the water inlet pipe being connected with jet pump on the pump housing, water inlet pipe one end is connected with the pump chamber of the pump housing, another
End is connected with the delivery port of jet pump, outlet pipe is additionally provided with the pump housing and is connected with pump chamber, and force pipe is additionally provided with the pump housing,
Force pipe one end is connected with the pump chamber of the pump housing, and the other end is connected with the water inlet of jet pump.When in use, the impeller of the pump housing turns
It is dynamic, the water part in pump chamber is pressed to into outlet pipe, a part presses to force pipe, and the water excavationg pump in outlet pipe is external, and presses
Hydraulic pressure in solenoid enters in the jet pump in deep-well, and for jet pump hydraulic pressure is provided, under jet pumping action, then with deep-well in
Water enter water inlet pipe together, then enter back into the pump housing, so circulation, realize that deep-well is fetched water.
Because in the course of the work, some is used for hydraulic pressure to outlet pipe the pressure that impeller is provided, so pump
The height of water outlet is also not high enough, and the another part for the pressure that impeller is provided is used for jet pump internal pressure water, so jet pump
The hydraulic pressure of interior acquisition is also not high enough, and then causes the suction of deep well pump also not high enough, and, also cause deep well pump the pump water yield compared with
It is little, and then cause outlet pipe that there is less water yield.
Further, since the hydraulic pressure that jet pump is obtained is not high enough, style method causes the high pressure nozzle in the pump housing easily miscellaneous
Thing is blocked, and is also the big technical problem that current deep well pump is present.
So, needing one kind badly at present can provide larger suction and pump water height, and the deep well pump being not easily blocked.
The content of the invention
It is an object of the invention to：For current deep well pump exist the problems referred to above, there is provided one kind have larger suction and
Lift, and the deep well pump being not easily blocked.
To achieve these goals, the technical solution used in the present invention is：
A kind of two-tube high suction of deep-well sprays centrifugal pump, the jet pump for including the pump housing and being connected with the pump housing, the pump
Intake antrum and water chamber being included in vivo, impeller being provided with the water chamber, the first ejector is additionally provided with the pump housing,
The intake antrum is connected with the water inlet of impeller by first ejector, and the pump housing also includes outlet pipe, it is described go out
Water pipe is connected with the inner flow passage of first ejector.In the two-tube high suction injection centrifugation pump work of the deep-well of the present invention, penetrate
Stream pump is located among deep-well, and motor drives the wheel rotation in water chamber, has in the presence of impeller height inside water chamber
Pressure current, and because the inner flow passage of outlet pipe and the first ejector is connected, that is to say, that in the centrifugal pump of the application, pump
The current for going out are flowed out from the first ejector, are entered without causing shunting and partial pressure to water chamber, so, more current penetrates
For streaming deep well pump, make the current entered in jet pump that there is the hydraulic pressure of bigger flow and Geng Gao, so so that jet pump
Can be with higher pump water height and the pump water yield, i.e. the two-tube high suction injection centrifugal pump of deep-well for enabling the present invention is applied to
Pump water conservancy project work is carried out in deeper deep-well, deeper suction, higher pump water height and the pump water yield can be provided；The opposing party
Face, due to larger the pump water yield and higher hydraulic pressure, so so that the high pressure nozzle of the first ejector in the pump housing is difficult
Blocked by debris.
Preferably, first ejector includes first jet and expands with the first jet is spaced apart first
Pressure pipe, one end of the first jet is draining hole, and the draining hole of the first jet is connected with the water chamber of the pump housing, institute
The other end for stating first jet is jet, and the jet of the first jet is towards first diffuser pipe, first spray
Gap between mouth and the first diffuser pipe be suction inlet, the suction inlet be located at the intake antrum in, on first diffuser pipe away from
The end of the first jet is engaged with the water inlet of the impeller, and the outlet pipe flows with the inside of first diffuser pipe
Road is connected.The two-tube high operation principle for inhaling injection centrifugal pump of deep-well in the present invention is that impeller rotates, the formation in water chamber
Highly pressurised liquid, the highly pressurised liquid in water chamber is partly in the jet pump in deep-well, makes jet pump carry out pump water conservancy project
Make, jet pump enters the water pump in deep-well in the intake antrum of the pump housing on ground, because the current in now intake antrum have
Certain pressure, so the current in intake antrum are pressed into the first diffusion that the suction inlet of the first ejector enters into the first ejector
In pipe, simultaneously as the draining hole of the first jet of the first ejector is connected with the water chamber with higher hydraulic pressure, so, go out
The part press-in first jet of the High-Pressure Water in water cavity, forms water jets under high pressure and injects first at the jet of first jet
In diffuser pipe, and outlet pipe is provided with the first diffuser pipe so that the water part in the first diffuser pipe is discharged from outlet pipe, one
In entering partly into impeller, and then, certain negative pressure is formed at the suction inlet between first jet and the first diffuser pipe, to water inlet
Current inside chamber produce suction, so that jet pump enters under the double action by intake antrum suction and water outlet cavity pressure
The pump water yield and lift of the increase jet pump of one step, i.e., enable the application deep-well it is two-tube it is high inhale spray centrifugal pump be suitable for
Among deeper deep-well, and with the lift of bigger the pump water yield and Geng Gao.
Preferably, be additionally provided with water inlet pipe and force pipe on the pump housing, one end of the water inlet pipe and the water inlet
Chamber is connected, and the other end is connected with the delivery port of the jet pump, and one end of the force pipe is connected with the water chamber, the other end
Connect with the water inlet of the jet pump.
Preferably, the jet pump includes the second ejector, the jet of first ejector with diameter greater than
The diameter of the jet of second ejector.First ejector jet it is straight with diameter greater than the second ejector jet
Footpath, operationally, the first ejector jet adopts larger diameter, makes have larger hydraulic pressure in the water chamber of the pump housing, enters
And provide higher hydraulic pressure and flow for jet pump, and the second ejector jet adopts less internal diameter, enabling the
Higher hydraulic pressure is produced at the jet of two ejectors, the hydraulic pressure at jet pump is further improve, so so that the application
Centrifugal pump can have higher suction, lift and the pump water yield.
Preferably, the two-tube high injection centrifugal pump of inhaling of the deep-well is also configured with motor, the width of the delivery port of the impeller
The diameter of degree and impeller is proportional with the power of the motor.When power of motor is increased, by increasing going out for impeller
The width at the mouth of a river improves the inflow into jet pump to increase the application pump housing be the pump water yield, and then improves in jet pump
Hydraulic pressure and into the inflow in intake antrum, the outlet pipe for so making the centrifugal pump of the application has bigger flow；By increasing
The diameter of big impeller, increases the pressure of the water outlet of impeller.
Preferably, the internal diameter of the jet of first ejector is proportional with the power of the motor.Work as increasing
During big power of motor, the width of the delivery port of the internal diameter size and impeller of the jet by increasing the first ejector makes the
The jet of one ejector has bigger flow, i.e. increases the flow of impeller water outlet, and then improves the water in water chamber
Pressure, the further hydraulic pressure improved in jet pump and into the inflow in intake antrum, the centrifugal pump for so making the application goes out
Water pipe has bigger flow.
Preferably, the internal diameter of the jet of second ejector is proportional with the power of the motor.Work as increasing
During big power of motor, the internal diameter size of the jet by increasing the second ejector makes jet pump have the bigger pump water yield, enters
The raising of one step has bigger flow into the inflow in intake antrum, the outlet pipe for so making the centrifugal pump of the application.
Preferably, the power of motor be 2.2KW, the impeller diameter be 160mm, the width of the delivery port of the impeller
Spend for 6～10mm, a diameter of 8～12mm of the jet of first ejector, the jet of second ejector it is straight
Footpath is 4～6mm.In the deep well pump of traditional structure, the motor of 2.2KW is the most commonly used, a diameter of in current deep well pump
The impeller of 160mm, its delivery port width is 4mm, and in this application, inventor selects the motor that conventional power is 2.2KW, and
The width of the corresponding delivery port by impeller is set to 6～10mm, and the diameter of the jet of the first ejector is set to 8～
12mm, the diameter of the jet of the second ejector is set to 4～6mm, so so that the suction of the deep well pump of the application, lift
The limiting value that all can be reached considerably beyond current deep well pump with pump discharge.
Preferably the motor is three phase electric machine as another, and the power of motor is 3KW, and the impeller diameter is
180mm, the width of the delivery port of the impeller is 8～12mm, a diameter of 8～12mm of the jet of first ejector,
A diameter of 4～6mm of the jet of second ejector.
Preferably, the two-tube high injection centrifugal pump of inhaling of the deep-well is also configured with motor, the diameter of the impeller and with institute
The power for stating motor is proportional relation, and the width of the delivery port of the impeller is proportional relation with the power of the motor.
In sum, as a result of above-mentioned technical proposal, the invention has the beneficial effects as follows：
1st, the centrifugal pump of the application, for more current jetting type deep well pump, makes the current entered in jet pump have more
Big flow and the hydraulic pressure of Geng Gao, so so that jet pump can have higher pump water height and the pump water yield, i.e. make this
The two-tube high injection centrifugal pump of inhaling of bright deep-well can carry out pump water conservancy project work suitable for deeper deep-well, can provide deeper suction
Journey, higher pump water height and the pump water yield；
2nd, the centrifugal pump of the application, due to larger the pump water yield and higher hydraulic pressure, so so that in the pump housing
The high pressure nozzle of one ejector is difficult to be blocked by debris.
Description of the drawings
Fig. 1 is the structural representation of the present invention,
Mark in figure：The 1- pump housings, 2- jet pumps, 3- intake antrums, 4- water chambers, 5- impellers, the ejectors of 6- first, 7- water outlets
Pipe, 8- motors, 9- water inlet pipes, 10- force pipes, the ejectors of 11- second, 61- first jets, the diffuser pipes of 62- first.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Embodiment 1：
A kind of as depicted deep-well it is two-tube it is high inhale injection centrifugal pump, include the pump housing 1 and with penetrating that the pump housing 1 is connected
Stream pump 2, includes in intake antrum 3 and water chamber 4, the water chamber 4 in the pump housing 1 and is provided with impeller 5, in the pump housing 1
The first ejector 6 is additionally provided with, the intake antrum 3 is connected with the water inlet of impeller 5 by first ejector 6, the pump
Body 1 also includes outlet pipe 7, and the outlet pipe 7 is connected with the inner flow passage of first ejector 6.In the deep-well of the present invention
During two-tube high suction injection centrifugation pump work, jet pump 2 is located among deep-well, and motor 8 drives the impeller 5 in water chamber 4 to rotate, and goes out
There is High-Pressure Water in the presence of impeller 5 inside water cavity 4, and because outlet pipe 7 connects with the inner flow passage of the first ejector 6
Logical, that is to say, that in the centrifugal pump of the application, the current for pumping out are flowed out from the first ejector 6, are entered without to going out
Water cavity 4 causes shunting and partial pressure, so, for more current jetting type deep well pump, the current entered in jet pump 2 is had more
Big flow and the hydraulic pressure of Geng Gao, so so that jet pump 2 can have higher pump water height and the pump water yield, i.e. make this
The two-tube high injection centrifugal pump of inhaling of bright deep-well can carry out pump water conservancy project work suitable for deeper deep-well, can provide deeper suction
Journey, higher pump water height and the pump water yield；On the other hand, due to larger the pump water yield and higher hydraulic pressure, so, make
The high pressure nozzle for obtaining the first ejector 6 in the pump housing 1 is difficult to be blocked by debris.
Preferably, first ejector 6 includes first jet 61 and is spaced apart with the first jet 61
First diffuser pipe 62, one end of the first jet 61 is draining hole, the draining hole of the first jet 61 and the pump housing 1
Water chamber 4 is connected, and the other end of the first jet 61 is jet, and the jet of the first jet 61 is towards described first
Diffuser pipe 62, the gap between the diffuser pipe 62 of the first jet 61 and first is suction inlet, and the suction inlet is located at the intake antrum 3
Interior, the end on first diffuser pipe 62 away from the first jet 61 is engaged with the water inlet of the impeller 5, it is described go out
Water pipe 7 is connected with the inner flow passage of first diffuser pipe 62.The two-tube high work for inhaling injection centrifugal pump of deep-well in the present invention
Principle is that impeller 5 rotates, and the formation highly pressurised liquid in water chamber 4, the highly pressurised liquid in water chamber 4 is partly into and is located at
In jet pump 2 in deep-well, jet pump 2 is set to carry out pump water conservancy project work, the water pump in deep-well is entered jet pump 2 pump housing positioned at ground
In 1 intake antrum 3, because the current in now intake antrum 3 have certain pressure, so the current in intake antrum 3 are pressed into
The suction inlet of the first ejector 6 is entered in the first diffuser pipe 62 of the first ejector 6, simultaneously as the first of the first ejector 6
The draining hole of nozzle 61 is connected with the water chamber 4 with higher hydraulic pressure, so, the part pressure of the High-Pressure Water in water chamber 4
Enter first jet 61, water jets under high pressure is formed at the jet of first jet 61 and is injected in the first diffuser pipe 62, and the first diffusion
Outlet pipe 7 is provided with pipe 62 so that the water part in the first diffuser pipe 62 is discharged from outlet pipe 7, is partly into leaf
In wheel 5, and then, certain negative pressure is formed at the suction inlet between the diffuser pipe 62 of first jet 61 and first, inside intake antrum 3
Current produce suction so that jet pump 2 is under the double action by the suction of intake antrum 3 and the pressure of water chamber 4, further
Increase jet pump 2 the pump water yield and lift, i.e., enable the application deep-well it is two-tube it is high inhale spray centrifugal pump be suitable for more
Among deep deep-well, and with the lift of bigger the pump water yield and Geng Gao.
Preferably, be additionally provided with water inlet pipe 9 and force pipe 10 on the pump housing 1, one end of the water inlet pipe 9 with it is described
Intake antrum 3 is connected, and the other end is connected with the delivery port of the jet pump 2, and one end of the force pipe 10 connects with the water chamber 4
Logical, the other end is connected with the water inlet of the jet pump 2.
Preferably, the jet pump 2 includes the second ejector 11, the diameter of the jet of first ejector 11
More than the diameter of the jet of second ejector 11.The jet of first ejector 6 sprays with diameter greater than the second ejector 11
The diameter of loophole, operationally, the jet of the first ejector 6 adopts larger diameter, make to have in the water chamber 4 of the pump housing 1 compared with
Big hydraulic pressure, and then higher hydraulic pressure and flow is provided for jet pump 2, and the jet of the second ejector 11 is using less interior
Footpath, enabling higher hydraulic pressure is produced at the jet of the second ejector 11, the water at jet pump 2 is further improve
Pressure, so so that the centrifugal pump of the application can have higher suction, lift and the pump water yield.
Preferably, the pump housing 1 is configured with motor 8, the motor 8 is monophase machine, and the power of the motor 8 is
2.2KW, a diameter of 160mm of the impeller 5, the width of the delivery port of the impeller 5 is 8mm, the spray of first ejector 6
A diameter of 8mm of loophole, a diameter of 4mm of the jet of second ejector 11.Measured in the physical dimension by test
Under, the maximum suction that the two-tube high suction injection centrifugal pump of deep-well of the application can reach is 40m, and H-Max is 30m, works as suction
For 40m when, the flow at outlet pipe 7 be 2.6m3/ h, now, tests, and the operating voltage of motor 8 is 220V, and electric current is
10.6A, motor 8 is in good working order.
Embodiment 2：
When motor 8 is monophase machine, the power of motor 8 is 2.2KW, a diameter of 160mm of impeller 5, the delivery port of impeller 5
Width be 6mm, a diameter of 8mm of the jet of the first ejector 6, during a diameter of 4mm of the jet of the second ejector 11.
Measured under the physical dimension by test, the maximum suction that the two-tube high suction injection centrifugal pump of deep-well of the application can reach is
36m, H-Max is 28m, and when suction is 36m, the flow at outlet pipe 7 is 2.3m3/h。
Embodiment 3：
When motor 8 is monophase machine, the power of motor 8 is 2.2KW, a diameter of 160mm of impeller 5, the delivery port of impeller 5
Width be 10mm, a diameter of 12mm of the jet of the first ejector 6, a diameter of 6mm of the jet of the second ejector 11
When.Measured under the physical dimension by test, two-tube high suction of deep-well of the application sprays the maximum suction that centrifugal pump can reach
Journey is 36m, and H-Max is 28m, and when suction is 36m, the flow at outlet pipe 7 is 3.0m3/h。
Embodiment 4：
When motor 8 be three phase electric machine, the power of motor 8 be 3KW, a diameter of 180mm of impeller 5, the width of the delivery port of impeller 5
For 8mm, a diameter of 10mm of the jet of the first ejector 6, during a diameter of 6mm of the jet of the second ejector 11.Pass through
Test is measured under the physical dimension, and the maximum suction that the two-tube high suction injection centrifugal pump of deep-well of the application can reach is 36m,
H-Max is 28m, and when suction is 36m, the flow at outlet pipe 7 is 3.0m3/h。
Embodiment 5：
When motor 8 be three phase electric machine, the power of motor 8 be 3KW, a diameter of 180mm of impeller 5, the width of the delivery port of impeller 5
Spend for 10mm, a diameter of 10mm of the jet of the first ejector 6, during a diameter of 6mm of the jet of the second ejector 11.It is logical
Overtesting is measured under the physical dimension, and the maximum suction that the two-tube high suction injection centrifugal pump of deep-well of the application can reach is
43m, H-Max is 32m, and when suction is 43m, the flow at outlet pipe 7 is 3.1m3/h。
Embodiment 6：
When motor is three phase electric machine, and power of motor is 3KW, a diameter of 180mm of the impeller 5, the delivery port of impeller 5
Width be 12mm, a diameter of 10mm of the jet of the first ejector 6, a diameter of 6mm of the jet of the second ejector 11
When.Measured under the physical dimension by test, two-tube high suction of deep-well of the application sprays the maximum suction that centrifugal pump can reach
Journey is 45m, and H-Max is 36m, and when suction is 45m, the flow at outlet pipe 7 is 3.3m3/h。
All any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included in
Within protection scope of the present invention.
Claims (4)
1. a kind of two-tube high suction of deep-well sprays centrifugal pump, the jet pump for including the pump housing and being connected with the pump housing, the pump housing
Intake antrum and water chamber are inside included, impeller is provided with the water chamber, the first ejector, institute are additionally provided with the pump housing
State intake antrum to connect by first ejector with the water inlet of impeller, the pump housing also includes outlet pipe, the water outlet
The inner flow passage of pipe and first ejector is connected, first ejector include first jet and with the first jet
The first diffuser pipe being spaced apart, one end of the first jet is draining hole, the draining hole of the first jet and the pump
The water chamber of body is connected, and the other end of the first jet is jet, and the jet of the first jet is towards described first
Diffuser pipe, the gap between the first jet and the first diffuser pipe is suction inlet, and the suction inlet is located in the intake antrum, described
End on first diffuser pipe away from the first jet is engaged with the water inlet of the impeller, the outlet pipe and described
The inner flow passage of one diffuser pipe is connected, and water inlet pipe and force pipe, one end of the water inlet pipe and institute are additionally provided with the pump housing
Intake antrum connection is stated, the other end is connected with the delivery port of the jet pump, and one end of the force pipe is connected with the water chamber,
The other end is connected with the water inlet of the jet pump, and the jet pump includes the second ejector, the spray of first ejector
The diameter of the jet with diameter greater than second ejector of loophole.
2. two-tube high suction of deep-well according to claim 1 sprays centrifugal pump, it is characterised in that the two-tube high suction spray of the deep-well
Penetrate centrifugal pump and be also configured with motor, the power of motor is 2.2KW, the impeller diameter is 160mm, the delivery port of the impeller
Width be 6～10mm, a diameter of 8～12mm of the jet of first ejector, the jet of second ejector
A diameter of 4～6mm.
3. two-tube high suction of deep-well according to claim 1 sprays centrifugal pump, it is characterised in that the two-tube high suction spray of the deep-well
Penetrate centrifugal pump and be also configured with motor, the motor is three phase electric machine, and the power of motor is 3KW, and the impeller diameter is
180mm, the width of the delivery port of the impeller is 8～12mm, a diameter of 8～12mm of the jet of first ejector,
A diameter of 4～6mm of the jet of second ejector.
4. two-tube high suction of deep-well according to Claims 2 or 3 sprays centrifugal pump, it is characterised in that the diameter of the impeller
It is proportional relation with the power of the motor, the width of the delivery port of the impeller is proportional relation with the power of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078274.7A CN104763643B (en) | 2015-02-13 | 2015-02-13 | Double-pipe high-absorbing injection type centrifugal pump for deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078274.7A CN104763643B (en) | 2015-02-13 | 2015-02-13 | Double-pipe high-absorbing injection type centrifugal pump for deep well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763643A CN104763643A (en) | 2015-07-08 |
| CN104763643B true CN104763643B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510078274.7A Active CN104763643B (en) | 2015-02-13 | 2015-02-13 | Double-pipe high-absorbing injection type centrifugal pump for deep well |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114246522A (en) * | 2021-12-30 | 2022-03-29 | 尚科宁家(中国)科技有限公司 | Effectual surface cleaning device of soil pick-up |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069496U (en) * | 1990-02-09 | 1991-01-16 | 福建省机械科学研究院 | High lift water pump for deep well |
| RU2115025C1 (en) * | 1996-05-30 | 1998-07-10 | Военный автомобильный институт | Vane pump regulation method |
| CN1214107A (en) * | 1996-11-27 | 1999-04-14 | 卡尔佩达有限公司 | Diffuser and conveyer device for single-impeller centrifugal self-priming pump |
| CN203906207U (en) * | 2014-06-24 | 2014-10-29 | 孙成礼 | Deep-well double-pipe double-suction booster pump |
| CN204476793U (en) * | 2015-02-13 | 2015-07-15 | 孙成礼 | The two-tube height of a kind of deep-well is inhaled and is sprayed centrifugal pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5383106A (en) * | 1976-12-28 | 1978-07-22 | Shibaura Eng Works Ltd | Jet and centrifugal combination pump |
-
2015
- 2015-02-13 CN CN201510078274.7A patent/CN104763643B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069496U (en) * | 1990-02-09 | 1991-01-16 | 福建省机械科学研究院 | High lift water pump for deep well |
| RU2115025C1 (en) * | 1996-05-30 | 1998-07-10 | Военный автомобильный институт | Vane pump regulation method |
| CN1214107A (en) * | 1996-11-27 | 1999-04-14 | 卡尔佩达有限公司 | Diffuser and conveyer device for single-impeller centrifugal self-priming pump |
| CN203906207U (en) * | 2014-06-24 | 2014-10-29 | 孙成礼 | Deep-well double-pipe double-suction booster pump |
| CN204476793U (en) * | 2015-02-13 | 2015-07-15 | 孙成礼 | The two-tube height of a kind of deep-well is inhaled and is sprayed centrifugal pump |
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| Publication number | Publication date |
|---|---|
| CN104763643A (en) | 2015-07-08 |
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Effective date of registration: 20160205 Address after: 614000 Sichuan city of Leshan province Wutongqiao District cattle town Zhenhua Road Applicant after: ICHUAN DONGGONG MOTOR CO., LTD. Address before: 610000, Sichuan County, Chengdu City, Jintang province new town net Le Village 19 groups Applicant before: Sun Chengli |
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