CN206000744U - A kind of multistage submersible electric pump with check-valves for outlet - Google Patents
A kind of multistage submersible electric pump with check-valves for outlet Download PDFInfo
- Publication number
- CN206000744U CN206000744U CN201620849071.3U CN201620849071U CN206000744U CN 206000744 U CN206000744 U CN 206000744U CN 201620849071 U CN201620849071 U CN 201620849071U CN 206000744 U CN206000744 U CN 206000744U
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- Prior art keywords
- check
- valves
- electric pump
- submersible electric
- spiral case
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Abstract
The utility model discloses a kind of multistage submersible electric pump with check-valves for outlet, the intake antrum connect including motor casing and with motor casing bottom, described intake antrum bottom is provided with the guide vane shell connecting with intake antrum, it is provided with impeller in described guide vane shell, described guide vane shell bottom is communicated with spiral case, it also is provided with impeller in described spiral case, it is provided with motor in described motor casing, motor casing top is provided with cable block, power transmission shaft on described motor is passed through intake antrum and is connected with the impeller in guide vane shell and spiral case, described spiral case side is provided with the outlet connecting with spiral case, described outlet is connected with arc lifting pipe by flange, described arc lifting pipe is connected with check-valves by flange.This utility model is occurred by the problem that the check-valves of lifting structure can effectively avoid the occurrence of drop impact part under water；And further improve sealing effectiveness by being provided with mechanical seal and labyrinth type sealing ring；The purpose of buffering can be played by having additional rubber retaining wall circle.
Description
Technical field
This utility model is related to immersible pump field, specifically refers to a kind of multistage submersible electric pump with check-valves for outlet.
Background technology
A kind of multistage submersible electric pump is pump housing impeller and the motor driving impeller all pulls the plug water pump of work, has deep-well
With with the scope of operation with two kinds.Deep well use multistage submersible electric pump is powered to motor by stretching into the cable in well, eliminates transmission length
Axle, thus compact conformation, lightweight, install, use and convenient transfer, having becoming of the power supply substituted borehole shaft driven (centrifugal) pump in area
Gesture.
Existing outlet is arranged on the multistage submersible electric pump typically no setting check-valves of bottom, once in larger depth
Underground work when, motor quits work suddenly and timely can not pull out multistage submersible electric pump, now in outlet pipe
Water can start because of self gravitation effect, to flow back, if the water yield in the larger outlet pipe of depth larger it is likely that can be to each assembly
Cause hydraulic pressure to impact, cause multistage submersible electric pump to damage.And the sealing of existing multistage submersible electric pump is poor, length easily occurs
Time uses and leads to water to pass through to be driven shaft clearance entrance motor intracavity, causes motor damage.Also have hydraulic pressure impact impeller reversion,
Thus motor also inverts, making asynchronous machine form generator system, may making that the motor feels hot, thus burning out motor.
Utility model content
The purpose of this utility model is to provide a kind of falling that is prevented from pumping up water, has the outlet band of preferable sealing property
There is the multistage submersible electric pump of check-valves.
This utility model is achieved through the following technical solutions：A kind of multistage submersible electric pump with check-valves for outlet, including electricity
Casing and the intake antrum connecting with motor casing bottom, described intake antrum bottom is provided with the guide vane shell connecting with intake antrum, described leads
It is provided with least one impeller, described guide vane shell bottom is communicated with spiral case, also is provided with impeller in described spiral case, described motor in leaf shell
It is provided with motor in shell, motor casing top is provided with cable block, be provided with the cable with motor connection in described cable block, on described motor
Power transmission shaft pass through intake antrum being connected with the impeller in guide vane shell and spiral case, described spiral case side is provided with going out of connecting with spiral case
The mouth of a river, described outlet is connected with arc lifting pipe by flange, and described arc lifting pipe is connected with check-valves by flange.Logical
Cross motor and drive drive axis, then drive multiple wheel rotation being enclosed within power transmission shaft, thus forming guide vane shell and snail
Form negative pressure in shell, cause the water into water intracavity to be subject to external water pressure and the effect of atmospheric pressure to enter in guide vane shell, subsequently into
In spiral case, the impeller finally by plural serial stage delivers water into outlet discharge.
For preferably realizing this utility model, further, described check-valves are lift-type check valve arrangement, in check-valves
Valve core housing and the flap being connected with valve core housing by sliding bar, the water inlet patch of described flap bottom and check-valves are fixed with wall
Close.Described valve core housing is pyramidal structure, and cone is towards the outlet of check-valves, and valve core housing is multiple solid by being provided with the conical surface
Fixed pole is fixed on check-valves inwall, thus ensureing to increase too many resistance to water-flow, also will not block outlet.Work as motor
During impeller work, the water that impeller is discharged enters in arc lifting pipe, so that flap is increased thus flap is formed with impact
And fit with valve core housing, now current can substantial amounts of entrance outlet pipe, after motor quits work, the water in outlet pipe is formed
Downward hydraulic pressure, thus driving flap slide downward and propping up the water inlet of check-valves, it is to avoid the water discharged flows back to portion
Part impacts, thus reaching the effect of non-return.
Further, described intake antrum is provided with guard with holes.Being provided with guard with holes by the outside in intake antrum can
Effectively intercept water-bed rubble or foreign body enters and in the pump housing, the pump housing caused to damage.And entirely guard with holes rushes for corrosion resistant plate
System forms, and not only has preferable corrosion resistance and non-oxidizability, and has preferable plasticity and toughness.
Further, described motor casing bottom is provided with the oil pocket fitted with power transmission shaft, and described oil pocket is provided with opening, opening
It is provided with pump nozzle.Described oil pocket can play the effect of lubricating mechanical sealing built with fluid, machine oil, and can be effectively anti-
The abrasion of stop stationary ring, the life-span of prolonged mechanical sealing is moreover it is possible to play protection against the tide, the effect of insulation.And described fluid source is wide
General, transformer oil, N5-10 machinery oil, bobbin oil, refrigerator oil, steam turbine oil etc. all can use.
Further, described oil pocket upper and lower is equipped with the mechanical seal fitted with power transmission shaft.And mechanical seal is
Monoblock type double mechanical seal, and be made up of twice, seal by tungsten carbide to tungsten carbide or carborundum for first, and second
Road is composed of to graphite etc. to graphite or pottery by carborundum.
Further, described spiral case bottom is provided with base.Base can make whole multistage submersible electric pump keep vertically stable.
Further, described intake antrum top is provided with labyrinth collar oil sealing, using the teaching of the invention it is possible to provide better seal performance.Institute
The labyrinth seal ring stated is to set the belt sealing tooth that several are arranged in order around rotating shaft, forms a series of sections between tooth and tooth
Ebb interval produces throttle effect when the gap by tortuous labyrinth and reaches the mesh of Drain Resistance with expanding cavity, sealed medium
's.Sealing property can effectively be improved by having additional labyrinth collar on guide vane shell top further.
Further, described motor casing upper and lower is equipped with the ball bearing with power transmission shaft cooperation.Described ball
Bearing is one kind of rolling bearing, is the centre that spherical alloy steel ball is arranged on interior steel ring and outer rim, is come with roll mode
Reduce the frictional force in power transmission process and improve mechanokinetic transmission efficiency.
Further, described motor casing top is provided with the draw ring being bolted, and is provided with for connecting outside motor casing
The pull bar of guide vane shell.Whole device can be lifted by draw ring and put in water by operator, for moving and laying whole
Device provides an impetus.And by backing out bolt, draw ring is changed, decrease the maintenance cost in later stage.And in electricity
It is provided with pull bar outside casing to fix bottom end cover, intake antrum and motor casing, it is possible to increase the stability of device.
Further, described cable block is provided with the rubber retaining wall circle fitted with cable.Described rubber ring retaining wall is close to
In the junction of cable and cable block, when using multistage submersible electric pump, cable is easily worn part, and in operation during cable
Often can be pullled, thus leading to cable and cable block junction to often rub against the problem that breakage occurs.And be provided with cable block
The rubber retaining wall circle being close to cable can play the purpose of buffering, and directly changes after rubber retaining wall circle damages, after being
Phase operation and maintenance is provided convenience.
This utility model compared with prior art, has advantages below and beneficial effect：
（1）This utility model is provided with check-valves on arc lifting pipe, can be effective by the check-valves of lifting structure
Avoid occur because motor quits work drop impact part under water problem occur, improve safety of the present utility model and
Stability；
（2）This utility model further improves sealing effectiveness by being provided with mechanical seal and labyrinth type sealing ring, and
Labyrinth sealing is non-contacting seal device, thus reducing contact friction, and because using grease lubrication mode, improve
Reliability in wet condition；
（3）This utility model can be close to by having additional rubber retaining wall circle cable rubber retaining wall circle can play slow
The purpose of punching, and directly change after rubber retaining wall circle damages, it is that later stage operation and maintenance is provided convenience.
Brief description
By reading detailed description non-limiting example made with reference to the following drawings, other spies of the present utility model
Levy, objects and advantages will become apparent：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of this utility model arc poplar water pipe and check-valves；
Fig. 3 is the structural representation of this utility model guard with holes.
Wherein：1 motor casing, 2 intake antrums, 3 guide vane shells, 4 impellers, 5 motors, 6 cable blocks, 7 water outlets
Mouthful, 8 arc lifting pipes, 9 check-valves, 10 valve core housings, 11 flaps, 12 guards with holes, 13 oil pockets, 14 bottoms
Seat, 15 ball bearings, 16 draw rings, 17 pull bars, 18 spiral cases.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary, is only used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than instruction
Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that
It is to restriction of the present utility model.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or electrically connect；Can also be to be joined directly together or indirect by intermediary
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with concrete condition understanding
State concrete meaning in this utility model for the term.
Embodiment 1：
A kind of multistage submersible electric pump with check-valves for outlet of the present embodiment, as depicted in figs. 1 and 2, including motor casing 1 He
The intake antrum 2 connecting with motor casing 1 bottom, described intake antrum 2 bottom is provided with the guide vane shell 3 connecting with intake antrum 2, and described leads
It is provided with the impeller 4 of two series connection in leaf shell 3, and is communicated with spiral case in guide vane shell 3 bottom, and also be provided with and stator in described spiral case
Corresponding impeller 4 in shell 3.It is provided with motor 5, motor casing 1 top is provided with cable block 6, described cable block 6 in described motor casing 1
Inside be provided with the cable being connected with motor 5, the power transmission shaft on described motor 5 pass through intake antrum 2 and with guide vane shell 3 and spiral case 18 in
Three impellers 4 connect, and described spiral case 18 side is provided with the outlet 7 connecting with spiral case 18, and described outlet 7 is connected by flange
There is arc lifting pipe 8, described arc lifting pipe 8 is connected with check-valves 9 by flange.
After described motor 5 is started working, impeller 4 high-speed rotation, liquid therein rotates together with three impellers 4,
In the presence of centrifugal force, fly away from the outside liquid jet of impeller 4, the effect of the liquid of injection two impellers 4 in guide vane shell 3
Arrive afterwards in spiral case 18, and gradually slack-off in the diffusion interior speed of spiral case 18, and pressure is gradually increased, and then from outlet 7, discharges
Pipe flow goes out.Now, form the vacuum both not had air not have liquid due to liquid around the center of impeller 4 is thrown toward
Low-pressure area, the liquid in well, in the presence of water surface atmospheric pressure, flows in guide vane shell 3 through water inlet, then enters back into spiral case
It is shot up in 18, liquid is exactly so continuously to be pumped up from liquid pool and continuously flow out from outlet
's.
Embodiment 2：
The present embodiment is on the basis of above-described embodiment, further limits, and described check-valves 9 are lift check valve
Structure, check-valves 9 inwall is fixed with valve core housing 10 and by sliding bar and the flap 11 being connected valve core housing 10 connection, described valve
Fitted with the water inlet of check-valves 9 in lobe 11 bottom.Described valve core housing 10 be pyramidal structure, cone towards the outlet of check-valves 9,
And valve core housing 10 is fixed on check-valves 9 inwall by being provided with multiple fix bars on the conical surface, thus ensureing will not increase too much
Resistance to water-flow, also will not block outlet.When motor 5 impeller 4 works, the water that impeller 4 is discharged enters arc and raises
In water pipe 8, thus flap 11 is formed with impact and making flap 11 rise and fit with valve core housing 10, now current can be substantial amounts of
Enter outlet pipe, after motor 5 quits work, the water in outlet pipe forms downward hydraulic pressure, thus driving flap 11 to downslide
Move and prop up the water inlet of check-valves 9, it is to avoid the water backflow discharged impacts to part, thus reaching the effect of non-return
Really.The other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 3：
The present embodiment is on the basis of above-described embodiment, further limits, as shown in figure 3, setting on described intake antrum 2
There is guard 12 with holes.Rubble or the foreign body that guard 12 with holes can effectively intercept the bottom is provided with by the outside in intake antrum 2
Enter and in the pump housing, the pump housing is caused to damage.And entirely guard 12 with holes forms for corrosion resistant plate punching, not only have preferably resistance to
Corrosivity and non-oxidizability, and there is preferable plasticity and toughness.The other parts of the present embodiment are same as the previously described embodiments,
Repeat no more.
Embodiment 4：
The present embodiment is on the basis of above-described embodiment, further limits, and described motor casing 1 bottom is provided with and is driven
The oil pocket 13 of axle laminating, described oil pocket 13 is provided with opening, and opening is provided with pump nozzle.Described oil pocket 13 is built with fluid, machine
The oily effect that can play lubricating mechanical sealing, and can effectively prevent the abrasion of dynamic and static ring, the life-span of prolonged mechanical sealing,
Protection against the tide, the effect of insulation can also be played.And described fluid wide material sources, transformer oil, N5-10 machinery oil, bobbin oil,
Refrigerator oil, steam turbine oil etc. all can use.The other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 5：
The present embodiment is on the basis of above-described embodiment, further limits, and described oil pocket 13 upper and lower is all provided with
There is the mechanical seal fitted with power transmission shaft.And mechanical seal is monoblock type double mechanical seal, and it is made up of twice, first
Road seals by tungsten carbide to tungsten carbide or carborundum, and second is composed of to graphite etc. to graphite or pottery by carborundum.
The other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 6：
The present embodiment is on the basis of above-described embodiment, further limits, and described spiral case bottom is provided with base 14.Bottom
Seat 14 can make whole multistage submersible electric pump keep vertically stable.The other parts of the present embodiment are same as the previously described embodiments, no
Repeat again.
Embodiment 7：
The present embodiment is on the basis of above-described embodiment, further limits, and described intake antrum 2 top is provided with labyrinth type
Sealing ring oil sealing, using the teaching of the invention it is possible to provide better seal performance.Described labyrinth seal ring oil sealing be set around rotating shaft several according to
The belt sealing tooth of secondary arrangement, forms a series of dam gap and expansion cavitys, sealed medium is by song between tooth and tooth
Produce throttle effect and reach the purpose of Drain Resistance during the gap in folding labyrinth.By having additional labyrinth on guide vane shell 3 top further
Formula sealing ring oil sealing can effectively improve sealing property.The other parts of the present embodiment are same as the previously described embodiments, no longer superfluous
State.
Embodiment 8：
The present embodiment is on the basis of above-described embodiment, further limits, and described motor casing 1 upper and lower is all provided with
There is the ball bearing 15 with power transmission shaft cooperation.Described ball bearing 15 is one kind of rolling bearing, is by spherical alloy steel ball
It is arranged on the centre of interior steel ring and outer rim, the frictional force in power transmission process is reduced with roll mode and improves mechanical dynamic
The transmission efficiency of power.Further, described motor casing 1 top is provided with the draw ring 16 being bolted, and is provided with outside motor casing 1
It is used for connecting the pull bar 17 of bottom end cover, intake antrum 2, described pull bar 17 is provided with 4 altogether, outside uniform setting motor casing 1.
Whole device can be lifted by draw ring 16 and put in water by operator, provide one for moving and laying whole device
Impetus.And by backing out bolt, draw ring is changed, decrease the maintenance cost in later stage.And set outside motor casing 1
Pull bar 17 is had to fix bottom end cover, intake antrum 2 and motor casing 1, it is possible to increase the stability of device.The other parts of the present embodiment
Same as the previously described embodiments, repeat no more.
Embodiment 9：
The present embodiment is on the basis of above-described embodiment, further limits, and described cable block 6 is provided with and cable patch
The rubber retaining wall circle closing.Described rubber ring retaining wall is close to the junction of cable and cable block 6, is using multistage submersible electric pump
When, cable is easily worn part, and cable can be pullled often in operation, thus leading to cable and cable block 6 junction warp
Often the problem of breakage in friction.And be provided with cable block 6 and be close to the rubber retaining wall circle of cable and can play the mesh of buffering
, and directly change after rubber retaining wall circle damages, it is that later stage operation and maintenance is provided convenience.Other portions of the present embodiment
Divide same as the previously described embodiments, repeat no more.
It is understood that according to the multistage submersible electric pump structure of one embodiment of this utility model, such as spiral case 18, lead
The operation principle of the part such as leaf shell 3 and oil pocket 13 and work process are all prior arts, and ripe for those skilled in the art
Know, be just no longer described in detail here.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
Multiple changes, modification, replacement and modification can be carried out to these embodiments under without departing from principle of the present utility model and objective,
Scope of the present utility model is limited by claim and its equivalent.
Claims (10)
1. a kind of multistage submersible electric pump with check-valves for outlet it is characterised in that：Including motor casing（1）And with motor casing（1）Under
The intake antrum of portion's connection（2）, described intake antrum（2）Bottom is provided with and intake antrum（2）The guide vane shell of connection（3）, described guide vane shell
（3）Inside it is provided with least one impeller（4）, described guide vane shell（3）Bottom is communicated with spiral case（18）, in described spiral case, it also is provided with impeller
（4）, described motor casing（1）Inside it is provided with motor（5）, motor casing（1）Top is provided with cable block（6）, described cable block（6）Inside it is provided with
With motor（5）The cable connecting, described motor（5）On power transmission shaft pass through intake antrum（2）And and guide vane shell（3）And spiral case（18）
Interior impeller（4）Connect, described spiral case（18）Side is provided with and spiral case（18）The outlet of connection（7）, described outlet（7）Logical
Cross flange and be connected with arc lifting pipe（8）, described arc lifting pipe（8）Check-valves are connected with by flange（9）.
2. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 1 it is characterised in that：Described check-valves
（9）For lift-type check valve arrangement, check-valves（9）Valve core housing is fixed with inwall（10）With by sliding bar be connected valve core housing
（10）The flap connecting（11）, described flap（11）Bottom and check-valves（9）Water inlet laminating.
3. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 1 and 2 it is characterised in that：Described enter
Water cavity（2）It is provided with guard with holes（12）.
4. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 1 and 2 it is characterised in that：Described electricity
Casing（1）Bottom is provided with the oil pocket fitted with power transmission shaft（13）, described oil pocket（13）It is provided with opening, opening is provided with oiling
Mouth.
5. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 4 it is characterised in that：Described oil pocket
（13）Upper and lower is equipped with the mechanical seal fitted with power transmission shaft.
6. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 1 and 2 it is characterised in that：Described snail
Shell bottom is provided with base（14）.
7. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 1 and 2 it is characterised in that：Described enter
Water cavity（2）Top is provided with labyrinth sealing.
8. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 1 and 2 it is characterised in that：Described electricity
Casing（1）Upper and lower is equipped with the ball bearing with power transmission shaft cooperation（15）.
9. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 1 and 2 it is characterised in that：Described electricity
Casing（1）Top is provided with the draw ring being bolted（16）, motor casing（1）Outside is provided with for connecting intake antrum（2）Draw
Bar（17）.
10. the multistage submersible electric pump with check-valves for a kind of outlet according to claim 1 and 2 it is characterised in that：Described electricity
Cable seat（6）It is provided with the rubber retaining wall circle fitted with cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620849071.3U CN206000744U (en) | 2016-08-08 | 2016-08-08 | A kind of multistage submersible electric pump with check-valves for outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620849071.3U CN206000744U (en) | 2016-08-08 | 2016-08-08 | A kind of multistage submersible electric pump with check-valves for outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000744U true CN206000744U (en) | 2017-03-08 |
Family
ID=58199383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620849071.3U Expired - Fee Related CN206000744U (en) | 2016-08-08 | 2016-08-08 | A kind of multistage submersible electric pump with check-valves for outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630822A (en) * | 2017-11-08 | 2018-01-26 | 浙江东音泵业股份有限公司 | A kind of permagnetic synchronous motor solar energy water pumping system and control method |
-
2016
- 2016-08-08 CN CN201620849071.3U patent/CN206000744U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630822A (en) * | 2017-11-08 | 2018-01-26 | 浙江东音泵业股份有限公司 | A kind of permagnetic synchronous motor solar energy water pumping system and control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20210808 |