CN109617318A - Submersible motor and its installation method and immersible pump - Google Patents
Submersible motor and its installation method and immersible pump Download PDFInfo
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- CN109617318A CN109617318A CN201910075776.2A CN201910075776A CN109617318A CN 109617318 A CN109617318 A CN 109617318A CN 201910075776 A CN201910075776 A CN 201910075776A CN 109617318 A CN109617318 A CN 109617318A
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- Prior art keywords
- shell
- sheath
- submersible motor
- rotor
- sealing
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of submersible motor and its installation methods and immersible pump, are related to the technical field of motor for submerged pump, and submersible motor includes shell, sheath, rotor mechanism and stator mechanism；Since first annular seal space and stator are configured to a closed entirety, improve the sealing means of submersible motor in the prior art, the technical issues of alleviating that submersible motor existing in the prior art is ineffective, the liquid of extraction is be easy to cause to pollute, extends the service life of submersible motor；The heat that coolant liquid generates rotor mechanism carries out heat exchange cooling, so that reaching better thermal balance inside submersible motor, alleviates the bad technical problem of the heat transfer effect of submersible motor；The interior of shell of submersible motor forms sealing structure, the operating that external impure liquid cannot be introduced into rotor mechanism is compound, it ensure that the use of submersible motor is no longer influenced by working environment water quality, improve the scope of application, improve the service life of submersible motor.
Description
Technical field
The present invention relates to motor for submerged pump technical fields, more particularly, to a kind of submersible motor and its installation method and diving
Pump.
Background technique
Immersible pump is the important equipment of deep-well water lift.Entire unit pulls the plug work when use.Underground water is extracted
Earth's surface is that domestic water, mine are speedily carried out rescue work, industry cooling, field irrigation, seawater lift, steamer tune carry, it may also be used for fountain scape
It sees, hot water immersible pump is used for hot spring bathing, could be applicable to extract underground water from deep-well, it can also be used to river, reservoir, water channel
Equal water lifts engineering.
Motor for submerged pump in use, can generate a large amount of heat, in order to improve the heat dissipation effect of motor for submerged pump,
The liquid of the contour heat exchange efficiency of oil would generally be added in motor for submerged pump.
But after motor for submerged pump long-time use, sealing effect declines, and the oil in immersible pump can leak out, and will cause
The liquid of extraction pollutes, and the heat transfer effect of motor for submerged pump is bad.
Summary of the invention
The purpose of the present invention is to provide a kind of submersible motor and its installation methods and immersible pump, to alleviate in the prior art
Existing submersible motor is ineffective, and the heat transfer effect of the liquid pollution and submersible motor that be easy to cause extraction is bad
At least one of the technical issues of.
The embodiment of the present invention is achieved in that
A kind of submersible motor provided by the invention, comprising: shell, sheath, rotor mechanism and stator mechanism；
The interior of shell is in sealing structure, and the sheath is located in the shell portion, and the stator mechanism is located at institute
It states between sheath and the shell, the side wall of the sheath is connect with the inner wall of the shell by sealing material, so that described
The first annular seal space for accommodating the stator mechanism is formed between shell and the sheath；
The rotor mechanism is located in the sheath, and the stator mechanism in the first annular seal space can be powered generation
Magnetic field drives the rotor mechanism rotation；
Coolant liquid is filled in the sealing structure of the shell, setting is isolated with the first annular seal space in the coolant liquid.
In preferred embodiments of the present invention, the rotor mechanism includes rotor and shaft；
The rotor is located in the sheath, and has gap between the rotor and the sheath, sets on the rotor
It is equipped with channel, the coolant liquid can form internal flow by gap between the rotor and the sheath and the channel
Circulation.
In preferred embodiments of the present invention, multiple channels are provided through along the circumferencial direction of the rotor.
In preferred embodiments of the present invention, one end of the shell is provided with first through hole, described in the shaft is stretched out
First through hole is connect with ex-ternal transmission mechanism.
It further include shell end cap and end cover in preferred embodiments of the present invention；
The shell end cap with the shell there is one end of first through hole to connect, the end cover and the shell end
Lid connection, and the shaft passes through the shell end cap and end cover is connect with ex-ternal transmission mechanism.
It further include the first sealing mechanism in preferred embodiments of the present invention；
The end cover has the second through-hole being connected to the first through hole, and the shaft is logical through described second
Hole；
First sealing mechanism is set to second through hole, and first sealing mechanism and the shell end cap connect
It connects, so that the inside of the shell is in sealing structure.
In preferred embodiments of the present invention, first sealing mechanism includes the first sealing ring and seal assembly；
First sealing ring is set between the shell end cap and the end cover, and the seal assembly is set to
In second through-hole, and the seal assembly is sheathed on the outside of the shaft, to seal second through-hole and described turn
Gap between axis.
In preferred embodiments of the present invention, the seal assembly includes times in mechanical sealing member or skeleton sealing element
It is a kind of.
In preferred embodiments of the present invention, the shaft is connect by the connection bearing with the sheath.
In preferred embodiments of the present invention, the connecting shaft is ceramic shaft, and the connection bearing is ceramic bearing.
In preferred embodiments of the present invention, the rotor is fixedly connected with the ceramic shaft by hot cover process.
In preferred embodiments of the present invention, it is provided with thrust ring between the rotor and the connection bearing, and described
Thrust ring is abutted with the rotor.
In preferred embodiments of the present invention, the sealing material uses sealing resin；
The sealing resin and the sheath are tightly connected far from one end of the end cover, and the sealing resin prolongs
At the inner wall for extending to the shell, to form the first annular seal space of structure in a ring.
In preferred embodiments of the present invention, the first annular seal space is internally provided with anchor point, and the stator mechanism is logical
The anchor point is crossed to be fixed in the first annular seal space.
In preferred embodiments of the present invention, the sealing structure of the interior of shell further includes for accommodating the coolant liquid
Heat exchanging chamber；
It is connected to inside the heat exchanging chamber and the sheath.
It further include liquid-conveying ducts in preferred embodiments of the present invention；
The liquid-conveying ducts are set between the heat exchanging chamber and the sheath, by the heat exchanging chamber coolant liquid with
It is circulated inside the sheath.
In preferred embodiments of the present invention, the outer wall of the first annular seal space is higher than the height of the sheath, so that ring
The liquid-conveying ducts are formed between the first annular seal space and the sheath of shape structure.
In preferred embodiments of the present invention, the liquid-conveying ducts are catheter；
The outer wall of the first annular seal space be higher than the sheath height so that the first annular seal space of ring structure with
Form groove between the sheath, the catheter is located at the groove, and the catheter and the first annular seal space is interior
Wall abuts.
In preferred embodiments of the present invention, any end of the rotor is provided with water guide wheel, water guide wheel edge
The circumferencial direction of the rotor connect with the rotor.
It further include capacitance component in preferred embodiments of the present invention；
The capacitance component is set to the one end of the shell far from the rotor mechanism, the capacitance component and described outer
Setting is isolated in coolant liquid in shell, and the capacitance component passes through the first annular seal space by cable and is electrically connected with the stator mechanism
It connects.
In preferred embodiments of the present invention, the capacitance component includes capacitor, power supply line, terminal box and capacitor shell；
The capacitor, power supply line and terminal box are all set in the capacitor shell, the power supply line and the capacitor
It is electrically connected with the terminal box, the terminal box is electrically connected with the cable.
In preferred embodiments of the present invention, the second sealing ring is provided between the capacitor shell and the shell.
In preferred embodiments of the present invention, third through-hole is provided in the first annular seal space, the cable passes through institute
It states third through-hole to be electrically connected with the stator mechanism, and is tightly connected between the cable and the third through-hole.
In preferred embodiments of the present invention, cable passage is provided on inner wall along the outer shell, the cable is logical
The both ends in road are connected to capacitance component and the first annular seal space respectively, and the cable is placed in the cable passage.
In preferred embodiments of the present invention, the material of the shell is Heat Conduction Material.
A kind of immersible pump provided by the invention, including the pump housing and the submersible motor；
Accommodating cavity is provided in the pump housing, the submersible motor is set in the accommodating cavity, and the submersible motor is used
In outside liquid is moved in the accommodating cavity.
It further include impeller in preferred embodiments of the present invention；
One end of the pump housing is provided with open end, and the impeller is located at the open end of the pump housing, the impeller with
The shaft of the rotor mechanism connects.
A kind of installation method of submersible motor provided by the invention, comprising the following steps:
Sheath is positioned and fixed to the inside of shell；
Stator mechanism is fixed on the positioning by the anchor point between shell and sheath；
The sealing for carrying out stator mechanism is filling, to form first annular seal space；
Rotor mechanism is installed in sheath；
The sealing of rotor mechanism is carried out, to form the heat exchanging chamber for being used for rotor mechanism internal liquid circulation；
Complete the sealing of interior of shell sealing structure.
In preferred embodiments of the present invention, the filling step of the sealing for carrying out stator mechanism further include:
After the completion of positioning, sealing material, and the two of sealing material are filled far from one end of sealing shell in stator mechanism
End each extends over to solidify with the inner wall of sheath and shell and seal, to form first annular seal space；
Wherein, first annular seal space forms the liquid-conveying ducts for flowing coolant liquid close to the side of sheath.
In preferred embodiments of the present invention, in sheath the step of installation rotor mechanism further include:
The rotor of rotor mechanism is integrally formed by hot cover process and shaft；
At the spindle nose end of rotor close to the position installed thrust ring of rotor, and connected between shaft and sheath by bearing
It connects；
After bearing positioning, it is reloaded into the shell end cap with bearing.
In preferred embodiments of the present invention, the sealing for completing interior of shell sealing structure is further comprising the steps of:
By injecting coolant liquid far from one end of sheath in heat exchanging chamber；
After the injection for completing coolant liquid, the close of interior of shell sealing structure is carried out by capacitance component and the second sealing ring
Envelope.
The beneficial effect of the embodiment of the present invention is:
A kind of submersible motor provided by the invention, comprising: shell, sheath, rotor mechanism and stator mechanism；Interior of shell is in
Sealing structure, sheath are located at interior of shell, and stator mechanism is between sheath and shell, the side wall of sheath and the inner wall of shell
It is connected by sealing material, so as to form the first annular seal space for accommodating stator mechanism between shell and sheath；Due to first
Seal chamber and stator are configured to a closed entirety, no longer need to carry out molding suit, simple process improves in the prior art
Submersible motor sealing means, it is ineffective to alleviate submersible motor existing in the prior art, be easy to cause extraction
Liquid pollution the technical issues of, extend the service life of submersible motor；
Further, rotor mechanism is located in sheath, and the stator mechanism in first annular seal space, which can be powered, generates magnetic field band
The rotation of turn；Coolant liquid is filled in the sealing structure of shell, setting is isolated with first annular seal space for coolant liquid, and logical coolant liquid can
Heat exchange cooling is carried out with the heat for generating rotor mechanism, so that reaching better thermal balance inside submersible motor, is alleviated latent
The bad technical problem of the heat transfer effect of hydroelectric machine；
Moreover, the interior of shell of submersible motor provided in an embodiment of the present invention forms sealing structure, external is impure
The operating that liquid cannot be introduced into rotor mechanism is compound, will not more generate the stuck rotor mechanism of a large amount of sediment, ensure that latent
The use of hydroelectric machine is no longer influenced by working environment water quality, is improved the scope of application, is improved the service life of submersible motor.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that submersible motor provided in an embodiment of the present invention has impeller；
Fig. 2 is the structural schematic diagram of submersible motor provided in an embodiment of the present invention；
Fig. 3 is the partial enlargement structural representation for the submersible motor that Fig. 2 embodiment provides；
Fig. 4 is the structural schematic diagram with cable passage of submersible motor provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram with catheter of submersible motor provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of immersible pump provided in an embodiment of the present invention；
Fig. 7 is structural schematic diagram of the immersible pump provided in an embodiment of the present invention as centrifugal pump.
Icon: 100- shell；200- sheath；300- rotor mechanism；301- rotor；302- shaft；400- stator mechanism；
500- first annular seal space；The channel 600-；700- shell end cap；800- end cover；The first sealing mechanism of 900-；901- first is close
Seal；902- seal assembly；110- connection bearing；120- heat exchanging chamber；130- liquid-conveying ducts；140- capacitance component；141- capacitor
Device；142- power supply line；143- terminal box；144- capacitor shell；150- cable；160- cable passage；The 170- pump housing；180- impeller.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Submersible motor mainly includes filling type and Water structure, and oil-filled submersible motor feature is inside motor or mechanical
Gas-tight silo is full of machinery oil, and rotor and bearing be immersed in oil liquid, improves the operating condition of motor, lubricate with it is cooling
To guarantee, production technology is also opposite will be simply.But filling type motor because sealing element damage or other reasons caused by leakage it is existing
It as happening occasionally, should not use in many occasions, free of contamination occasion is fetched water and required in especially life.
What is added in motor machine used in Water filling type submersible pump is pure clear water, so do not generate any pollution to environment,
Belong to environment-friendly type water pump.But existing Water pump motor is restricted by production technology, especially in some small-power water
Pump field, covering surface very little.Stator winding, iron core and the bearing of existing Water filling type submersible pump motor work in water, right
Conducting wire and processing technology used in stator winding, joint material and Wrapping technical, the structural material and technique, iron for lubricating bearing
Core and the anti-corrosion treatment of metal material etc. have very high requirement, expect that the manufacturing process of finished product need to be put into largely from former material
Manpower, financial resources be just able to satisfy its complicated technique requirement.
The present embodiment is illustrated mainly for the submersible motor of Water structure, but cooling provided in this embodiment
Liquid can be pure water, can also select different coolant liquids for different use environments.
As shown in Figs. 1-5, a kind of submersible motor provided in this embodiment, comprising: shell 100, sheath 200, rotor mechanism
300 and stator mechanism 400；It is in sealing structure inside shell 100, sheath 200 is located inside shell 100, and 400, stator mechanism
Between sheath 200 and shell 100, the side wall of sheath 200 is connect with the inner wall of shell 100 by sealing material, so that shell
The first annular seal space 500 for accommodating stator mechanism 400 is formed between 100 and sheath 200；Rotor mechanism 300 is located at sheath 200
Interior, the stator mechanism 400 in first annular seal space 500, which can be powered, generates the magnetic field drive rotation of rotor mechanism 300；Shell 100
Coolant liquid is filled in sealing structure, setting is isolated with first annular seal space 500 in coolant liquid.
In preferred embodiments of the present invention, the sealing structure inside shell 100 further includes for accommodating changing for coolant liquid
Hot chamber 120；It is connected to inside heat exchanging chamber 120 and sheath 200.
Sealing structure inside shell 100 can be divided into two big seal areas, be first annular seal space 500 respectively and following change
Hot chamber 120 belongs to live part, 400 internal cable circle of stator mechanism, when stator mechanism 400 is powered inside first annular seal space 500
After can generate magnetic field, rotated to will drive rotor mechanism 300；Coolant liquid is filled with inside heat exchanging chamber 120, and cooling
Liquid can be contacted directly with 300 part of rotor mechanism, can disappearing due to rotor mechanism 300 when rotor mechanism 300 is rotated
Consumption generates a large amount of heat, and the heat of this part can be transferred in coolant liquid, coolant liquid passes through due to the heat transfer effect of coolant liquid
Shell 100 exchanges heat with the external world, so as to reach the thermal balance inside motor, so that rotor mechanism 300 and other transmissions
Component is run in the environment of a relative low temperature, improves the whole service life of submersible motor.
In preferred embodiments of the present invention, the material of shell 100 is Heat Conduction Material.Preferably, 100 material of shell can be with
Using stainless steel material or other thermally conductive materials, the thermal coefficient of shell 100 is higher, and heat transfer property is better, in submersible motor
The lower performance for being more conducive to play motor of the temperature in portion.
In preferred embodiments of the present invention, first annular seal space 500 is internally provided with anchor point, and stator mechanism 400 passes through
Anchor point is fixed in first annular seal space 500, just can be with since stator mechanism 400 needs to be fixed on inside first annular seal space 500
Magnetic field is transmitted to rotor mechanism 300 always, so the position of positioning mechanism needs to be set in the outside of rotor mechanism 300 completely,
And preferably, rotor mechanism 300 and sheath 200 are located at the center of shell 100, thereby may be ensured that rotor mechanism 300
Rotation it is more balanced.
The beneficial effect of the embodiment of the present invention is:
A kind of submersible motor provided in this embodiment, comprising: shell 100, sheath 200, rotor mechanism 300 and stator mechanism
400；Be in sealing structure inside shell 100, sheath 200 is located inside shell 100, and stator mechanism 400 be located at sheath 200 with outside
Between shell 100, the side wall of sheath 200 is connect with the inner wall of shell 100 by sealing material so that shell 100 and sheath 200 it
Between form the first annular seal space 500 for accommodating stator mechanism 400；Since first annular seal space 500 and stator mechanism 400 form one
A closed entirety no longer needs to carry out molding suit, and simple process improves the sealing means of submersible motor in the prior art,
The technical issues of alleviating that submersible motor existing in the prior art is ineffective, the liquid of extraction be easy to cause to pollute,
Extend the service life of submersible motor；
Further, rotor mechanism 300 is located in sheath 200, and the stator mechanism 400 in first annular seal space 500 can lead to
Electricity generates magnetic field and rotor 301 is driven to rotate；Coolant liquid, coolant liquid and first annular seal space are filled in the sealing structure of shell 100
500 isolation settings, the heat that logical coolant liquid can generate rotor mechanism 300 carries out heat exchange cooling, so that inside submersible motor
Reach better thermal balance, alleviates the bad technical problem of the heat transfer effect of submersible motor；
Moreover, forming sealing structure inside the shell 100 of submersible motor provided in an embodiment of the present invention, external is impure
Liquid cannot be introduced into rotor mechanism 300 operating it is compound, will not more generate the stuck rotor mechanism 300 of a large amount of sediment,
It ensure that the use of submersible motor is no longer influenced by working environment water quality, improve the scope of application, improve submersible motor
Service life.
On the basis of the above embodiments, further, in preferred embodiments of the present invention, rotor mechanism 300 includes
Rotor 301 and shaft 302；Rotor 301 is located in sheath 200, and has gap, rotor 301 between rotor 301 and sheath 200
On be provided with channel 600, coolant liquid can form internal flow by gap between rotor 301 and sheath 200 and channel 600
Circulation.
In preferred embodiments of the present invention, multiple channels 600 are provided through along the circumferencial direction of rotor 301.
Specifically, process is circulated for the inside of coolant liquid, by the rotation of rotor 301 when work, utilize rotor
Channel 600 on 301, the gap between rotor 301 and sheath 200 drives the water inside motor to recycle above and below, by rotor
It is swapped in the hot water bank of 301 parts to heat exchanging chamber 120, heat is passed to the outside of submersible motor in time by shell 100,
Reach the internal thermal equilibrium of submersible motor；Preferably, coolant liquid enters rotor by the gap between rotor 301 and sheath 200
301 close to the position of following shaft 302, by fashion of extrusion, so that coolant liquid can be re-introduced into along channel 600
In heat exchanging chamber 120, and multiple channels 600 can be provided through along the circumferencial direction of rotor 301, it can be maximum
The heat that rotor 301 generates is exchanged heat to coolant liquid, then passes through the thermally conductive function of shell 100, the heat of coolant liquid is taken out of.
Moreover, being directed to the use environment of submersible motor, it is full of this large amount of water outside the shell 100 of general submersible motor, it can
Preferably the heat of coolant liquid to be swapped out.
Optionally, water guide wheel is also provided on rotor 301, water guide wheel can drive cold inside heat exchanging chamber 120
But liquid is stirred, and can increase the flowing of coolant liquid, realizes better heat exchange.
In preferred embodiments of the present invention, one end of shell 100 is provided with first through hole, and it is logical that shaft 302 stretches out first
Hole is connect with ex-ternal transmission mechanism.
Preferably, the use circular hole of first through hole.
It further include shell end cap 700 and end cover 800 in preferred embodiments of the present invention；Shell end cap 700 and outer
There is shell 100 one end of first through hole to connect, and end cover 800 is connect with shell end cap 700, and shaft 302 passes through shell end
Lid 700 and end cover 800 are connect with ex-ternal transmission mechanism.
The connection type of shell end cap 700 and shell 100 can be a variety of, such as: it is threadedly coupled, is clamped or is bonded
Deng, it is preferable that shell end cap 700 is to be threadedly coupled with the connection type of shell 100.
And sealing ring can be increased between shell end cap 700 and shell 100, it is preferable that use rubber seal.
The connection type of end cover 800 and shell end cap 700 can be a variety of, such as: it is threadedly coupled, clamping or viscous
It connects, it is preferable that end cover 800 is to be threadedly coupled with the connection type of shell end cap 700.
Optionally, the material of shell end cap 700 and end cover 800 can be polymer plastic material.
It further include the first sealing mechanism 900 in preferred embodiments of the present invention；End cover 800 has to be led to first
Second through-hole of hole connection, shaft 302 run through the second through-hole；First sealing mechanism 900 is set to the second through hole, the first sealing
Mechanism 900 is connect with shell end cap 700, so that the inside of shell 100 is in sealing structure.
Wherein, the first sealing mechanism 900 is set to shaft 302 close to one end of impeller 180, and the first sealing mechanism 900 is used
In avoid environmental liquids by connection bearing 110 and end cover 800 between gap enter in sheath 200.
In preferred embodiments of the present invention, the first sealing mechanism 900 includes the first sealing ring 901 and seal assembly 902；
First sealing ring 901 is set between shell end cap 700 and end cover 800, and seal assembly 902 is set in the second through-hole,
And seal assembly 902 is sheathed on the outside of shaft 302, to seal the gap between the second through-hole and shaft 302.
In preferred embodiments of the present invention, seal assembly 902 includes times in mechanical sealing member or skeleton sealing element
It is a kind of, it is preferable that seal assembly 902 uses mechanical sealing member.
Mechanical seal (mechanical seal) refers to by least a pair of end face perpendicular to rotation axis in Fluid pressure
With keep under the action of compensation mechanism elastic force (or magnetic force) and under the cooperation of auxiliary seal being bonded and constituting with respect to sliding
The device for preventing fluid from leaking.
Mechanical sealing member avoids environmental liquids from entering in sheath 200, makes to recycle in sheath 200 for closed water, external
Impure liquid cannot enter sheath 200, avoid the operating load for increasing rotor 301, will not more generate a large amount of heavy
The stuck rotor 301 of starch, can no longer be influenced by working environment water quality, the scope of application greatly improves and the service life is longer.
First sealing ring 901 will seal between sheath 200 and end cover 800, and the liquid in sheath 200 is avoided to pass through shield
Gap is flowed out between set 200 and end cover 800.
In preferred embodiments of the present invention, shaft 302 is connect by connecting bearing 110 with sheath 200.
In preferred embodiments of the present invention, shaft 302 is ceramic shaft, and connection bearing 110 is ceramic bearing.Due to ceramics
Anticorrosion of Bearing degree is high, so, ceramic rolling bearing is suitable for the operation under the mal-condition for being covered with corrosive media；Due to
Ceramics are influenced smaller than steel by expanding with heat and contract with cold, thus in the timing of the gap of bearing one, allow bearing more acute in difference variation
It works in strong environment；Since the modular ratio steel of ceramics is high, when stress, is unlikely to deform, therefore is conducive to improve work speed
Degree, and reach higher precision.
In preferred embodiments of the present invention, rotor 301 is fixedly connected with ceramic shaft by hot cover process.
In preferred embodiments of the present invention, thrust ring, and thrust ring are provided between rotor 301 and connection bearing 110
It is abutted with rotor 301.Preferably, thrust ring uses ceramic thrust ring,
Specifically, rotor 301 forms an entirety by hot cover process with ceramic shaft, then at close turn of 302 head end of shaft
Sub 301 positions install ceramic thrust ring, and the ceramic bearing at top is first passed through nylon or other high-temperature material close-fittings by when assembly
Combined pressure enters in sheath 200, after bearing positioning, is put into the rotor 301 with ceramic shaft, is reloaded into the sealed end with ceramic bearing
Lid 800 after rotor 301 is installed, then passes through external or built-in seal assembly 902 in the bottom of shaft 302 and is sealed.
A large amount of heat can be generated in the present embodiment, inside submersible motor, and (heat is mainly that the loss of rotor 301, axis are close
What the friction of the ceramic shaft and ceramic bearing of sealing and lower end generated).These heats pass through the rotation of rotor 301, utilize rotor
Channel 600 on 301 or the water guide wheel being mounted on rotor 301, the gap band between rotor 301 and sheath 200 are moved
The coolant liquid of hot chamber 120 recycles above and below, and the coolant liquid of the heat of 301 part of rotor is brought to swapping in heat exchanging chamber 120, is led to
It crosses shell 100 and heat is passed into outside motor in time, reach motor internal thermal equilibrium, realize the reliable operation of motor.
In preferred embodiments of the present invention, sealing material uses sealing resin；Sealing resin and sheath 200 are far from sealing
One end of end cap 800 is tightly connected, and sealing resin extends at the inner wall of shell 100, to form the first of structure in a ring
Seal chamber 500.
For sealing resin using perfusion sealing means, this sealing is directly to be poured into need to seal by the potting compound of liquid
In stator mechanism 400, with stator an entirety is formed after cured, be set with without single molding, simple process and this close
It is intuitive, reliable to seal effect, compared to current oil-filled type and water filling type submersible motor, changes the sealing knot of submersible motor completely
Structure, different sealing emphasis use more applicable sealing means, solve the problems, such as submersible motor easy oil leakage electric leakage, from
And the damage ratio of submersible motor is substantially reduced, extend the service life of immersible pump.
It further include liquid-conveying ducts 130 in preferred embodiments of the present invention；Liquid-conveying ducts 130 are set to 120 He of heat exchanging chamber
Between sheath 200, by heat exchanging chamber 120 coolant liquid and sheath 200 inside circulate.
Wherein, different embodiments can be set in liquid-conveying ducts 130, such as: the outer wall of first annular seal space 500 is higher than
The height of sheath 200, so as to form liquid-conveying ducts 130 between the first annular seal space 500 and sheath 200 of ring structure；Wherein, it leads
Liquid channel 130 is the liquid-conveying ducts 130 formed due to the lateral wall of first annular seal space 500, can guarantee rotor mechanism 300 at this time
It is completely immersed in coolant liquid, heat transfer effect is more preferably.
For another example: in preferred embodiments of the present invention, liquid-conveying ducts 130 are catheter；The outer wall of first annular seal space 500 is high
In the height of the sheath 200, so as to form groove, catheter position between the first annular seal space 500 and sheath 200 of ring structure
In groove, and catheter is abutted with the inner wall of first annular seal space 500.
Specifically, catheter is set between heat exchanging chamber 120 and sheath 200, using catheter by sheath 200 and heat exchanging chamber
Liquid in 120 is connected to, and flows the liquid in catheter and sheath 200 sufficiently, utilizes the high fluidity of liquid
The operating temperature of device is effectively reduced into heat exchanging chamber 120 in the heat transfer that work is generated.
It further, further include capacitance component 140 in preferred embodiments of the present invention；Capacitance component 140 is set to outer
Setting, capacitance component 140 is isolated with the coolant liquid in shell 100 in the one end of shell 100 far from rotor mechanism 300, capacitance component 140
First annular seal space 500 is passed through by cable 150 to be electrically connected with stator mechanism 400.
In preferred embodiments of the present invention, capacitance component 140 includes capacitor 141, power supply line 142,143 and of terminal box
Capacitor shell 144；Capacitor 141, power supply line 142 and terminal box 143 are all set in capacitor shell 144, power supply line 142 and capacitor
141 are electrically connected with terminal box 143, and terminal box 143 is electrically connected with cable 150.
Specifically, capacitor shell 144 is provided on the outer surface of shell 100, capacitor 141, power supply line 142 and terminal box
143 are all set in inside capacitor shell 144, and external power supply is electrically connected by power supply line 142 with terminal box 143, capacitor 141 with connect
Wire box 143 is electrically connected, and terminal box 143 is electrically connected with stator mechanism 400, is conveyed stable electric energy for stator mechanism 400, is made electricity
Son generates magnetic field and rotor 301 is driven to rotate.
In preferred embodiments of the present invention, the second sealing ring is provided between capacitor shell 144 and shell 100.Preferably,
In order to guarantee the leakproofness of shell 100 Yu capacitor shell 144, rubber seal can be provided between capacitor shell 144 and shell 100
Chamber.
In order to guarantee that the stable electric power of capacitor 141 is transmitted at stator mechanism 400, the set-up mode of cable 150 can be with
There are many settings, such as: third through-hole is provided in first annular seal space 500, cable 150 passes through third through-hole and stator mechanism
400 electrical connections, and be tightly connected between cable 150 and third through-hole.
Concrete mode, after first connecting cable 150 with stator mechanism 400, along the position perfusion sealing tree of cable 150
Rouge, so that the inside of cable 150 and stator mechanism 400 is complete at this time after the sealing resin of the outside of cable 150 all solidifies
Sealing.
For another example, in preferred embodiments of the present invention, cable passage 160, cable are provided on the inner wall along shell 100
The both ends in channel 160 are connected to capacitance component 140 and first annular seal space 500 respectively, and cable 150 is placed in cable passage 160.
Wherein, there are many cable passage 160 can be set, such as: cable passage 160 is the pipe of ceramics or stainless steel
Cable 150 can be coated on inside completely, so that cable 150 will not be contacted directly with coolant liquid, can more preferably protected by column
The service life of cable 150 is demonstrate,proved, and is directed to different coolant liquids, the cable passage 160 of unlike material can be used, be applicable in model
It encloses more wide.
As shown in fig. 6, a kind of immersible pump provided in this embodiment, including the pump housing 170 and above-mentioned submersible motor；The pump housing
Accommodating cavity is provided in 170, submersible motor is set in accommodating cavity, and submersible motor is used to outside liquid being moved to accommodating cavity
It is interior.
It further include impeller 180 in preferred embodiments of the present invention；One end of the pump housing 170 is provided with open end, impeller
180 are located at the open end of the pump housing 170, and impeller 180 is connect with the shaft 302 of rotor mechanism 300.
Specifically, there is fluid passage 600 between the pump housing 170 and submersible motor, liquid is moved to by submersible motor when working
In fluid passage 600, promotion movement is carried out to liquid；By the way that submersible motor is arranged in the pump housing 170, the function of conveying liquid is realized
Energy.
As shown in fig. 7, immersible pump provided in this embodiment can be used as centrifugal pump, by being arranged in the bottom of impeller
There is inlet, and one end far from impeller is provided with liquid outlet, can complete to enter in inlet by the effect of impeller
Liquid centrifugal action.
In addition, the technical effect of immersible pump provided in this embodiment and the technology of submersible motor provided by the above embodiment are imitated
Fruit is identical, and details are not described herein again.
The installation method of a kind of submersible motor provided in this embodiment, comprising the following steps: be positioned and fixed to sheath 200
The inside of shell 100；Stator mechanism 400 is fixed on the positioning by the anchor point between shell 100 and sheath 200；It carries out
The sealing of stator mechanism 400 is filling, to form first annular seal space 500；Rotor mechanism 300 is installed in sheath 200；Carry out rotor
The sealing of mechanism 300, to form the heat exchanging chamber 120 for being used for 300 internal liquid circulation of rotor mechanism；It is close to complete 100 inside of shell
The sealing of seal structure.
In preferred embodiments of the present invention, the filling step of the sealing of stator mechanism 400 is carried out further include: positioning is completed
Afterwards, sealing material is filled far from one end of sealing shell 100 in stator mechanism 400, and the both ends of sealing material each extend over
Solidify with the inner wall of sheath 200 and shell 100 and seal, to form first annular seal space 500；Wherein, first annular seal space 500 is close to shield
The side of set 200 forms the liquid-conveying ducts 130 for flowing coolant liquid.
In preferred embodiments of the present invention, in sheath 200 the step of installation rotor mechanism 300 further include: rotor machine
The rotor 301 of structure 300 is integrally formed by hot cover process and shaft 302；At the spindle nose end of rotor 301 close to the position of rotor 301
Installed thrust ring is set, and is connected between shaft 302 and sheath 200 by bearing；After bearing positioning, it is reloaded into bearing
Shell end cap 700.
In preferred embodiments of the present invention, the sealing for completing 100 internal seal structure of shell is further comprising the steps of: logical
It crosses and injects coolant liquid far from one end of sheath 200 in heat exchanging chamber 120；After the injection for completing coolant liquid, pass through 140 He of capacitance component
The sealing of second sealing ring progress 100 internal seal structure of shell.
The installation method of submersible motor provided in this embodiment realizes the entire mounting means of submersible motor, Er Qie
After submersible motor installs, the live part of stator mechanism 400 has formed the entirety of a complete seal, and sealing effect is in one
A optimum state, submersible motor realize the extraction of external water by the impeller 180 on spindle nose；The both ends of submersible motor by using
Different sealing means are formed in the interior thereof an internal water circulation system.When work, a large amount of heat can be generated inside motor,
These heats pass through the rotation of rotor 301, the gap using the water-guiding hole on rotor 301, between rotor 301 and sheath 200
It drives the water inside motor to recycle above and below, will be swapped in the hot water bank to heat exchanging chamber 120 of 301 part of rotor, pass through shell
Heat is passed to outside motor by 100 in time, reaches motor internal thermal equilibrium, realizes the reliable operation of motor.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of submersible motor characterized by comprising shell, sheath, rotor mechanism and stator mechanism；
The interior of shell is in sealing structure, and the sheath is located in the shell portion, and the stator mechanism is located at the shield
Between set and the shell, the side wall of the sheath is connect with the inner wall of the shell by sealing material, so that the shell
The first annular seal space for accommodating the stator mechanism is formed between the sheath；
The rotor mechanism is located in the sheath, and the stator mechanism in the first annular seal space, which can be powered, generates magnetic field
The rotor mechanism is driven to rotate；
Coolant liquid is filled in the sealing structure of the shell, setting is isolated with the first annular seal space in the coolant liquid.
2. submersible motor according to claim 1, which is characterized in that the rotor mechanism includes rotor and shaft；
The rotor is located in the sheath, and has gap between the rotor and the sheath, is provided on the rotor
Channel, the coolant liquid can form internal flow by gap between the rotor and the sheath and the channel and follow
Ring.
3. submersible motor according to claim 2, which is characterized in that be provided through along the circumferencial direction of the rotor
Multiple channels.
4. submersible motor according to claim 2, which is characterized in that one end of the shell is provided with first through hole, institute
The shaft stretching first through hole is stated to connect with ex-ternal transmission mechanism.
5. submersible motor according to claim 4, which is characterized in that further include shell end cap and end cover；
The shell end cap with the shell there is one end of first through hole to connect, and the end cover and the shell end cap connect
It connects, and the shaft passes through the shell end cap and end cover is connect with ex-ternal transmission mechanism.
6. submersible motor according to claim 5, which is characterized in that the sealing material uses sealing resin；
The sealing resin and the sheath are tightly connected far from one end of the end cover, and the sealing resin extends to
At the inner wall of the shell, to form the first annular seal space of structure in a ring.
7. submersible motor according to claim 6, which is characterized in that the sealing structure of the interior of shell further includes being used for
Accommodate the heat exchanging chamber of the coolant liquid；
It is connected to inside the heat exchanging chamber and the sheath.
8. submersible motor according to claim 7, which is characterized in that further include liquid-conveying ducts；
The liquid-conveying ducts are set between the heat exchanging chamber and the sheath, by the heat exchanging chamber coolant liquid with it is described
It is circulated inside sheath.
9. a kind of immersible pump, which is characterized in that including the pump housing and such as the described in any item submersible motors of claim 1-8；
Accommodating cavity is provided in the pump housing, the submersible motor is set in the accommodating cavity, and the submersible motor is used for will
Outside liquid is moved in the accommodating cavity.
10. a kind of installation method of submersible motor, which comprises the following steps:
Sheath is positioned and fixed to the inside of shell；
Stator mechanism is fixed on the positioning by the anchor point between shell and sheath；
The sealing for carrying out stator mechanism is filling, to form first annular seal space；
Rotor mechanism is installed in sheath；
The sealing of rotor mechanism is carried out, to form the heat exchanging chamber for being used for rotor mechanism internal liquid circulation；
Complete the sealing of interior of shell sealing structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075776.2A CN109617318B (en) | 2019-01-25 | 2019-01-25 | Submersible motor and immersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075776.2A CN109617318B (en) | 2019-01-25 | 2019-01-25 | Submersible motor and immersible pump |
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| Publication Number | Publication Date |
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| CN109617318A true CN109617318A (en) | 2019-04-12 |
| CN109617318B CN109617318B (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910075776.2A Active CN109617318B (en) | 2019-01-25 | 2019-01-25 | Submersible motor and immersible pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11808268B2 (en) | 2020-10-19 | 2023-11-07 | Milwaukee Electric Tool Corporation | Stick pump assembly |
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| CN201401345Y (en) * | 2009-05-12 | 2010-02-10 | 浙江东音泵业有限公司 | Submerged electric pump for well |
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| CN201830065U (en) * | 2010-09-10 | 2011-05-11 | 许敬崇 | Shielded motor of submersible pump |
| CN202818008U (en) * | 2012-10-15 | 2013-03-20 | 浙江东音泵业股份有限公司 | Cooling system of submersible motor for well |
| CN203560108U (en) * | 2013-12-02 | 2014-04-23 | 温岭市金翼机电有限公司 | Submersible pump |
| CN208330774U (en) * | 2018-06-20 | 2019-01-04 | 广州市怡田水族器材有限公司 | Motor for submerged pump and water pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465437A (en) * | 1981-02-14 | 1984-08-14 | Grundfos A/S | Pump comprising a canned motor |
| CN201401345Y (en) * | 2009-05-12 | 2010-02-10 | 浙江东音泵业有限公司 | Submerged electric pump for well |
| CN101820194A (en) * | 2010-02-11 | 2010-09-01 | 浙江临海电机有限公司 | Dynamic sealing device having cooling function for high-power and high-speed submerged motor |
| CN201830065U (en) * | 2010-09-10 | 2011-05-11 | 许敬崇 | Shielded motor of submersible pump |
| CN202818008U (en) * | 2012-10-15 | 2013-03-20 | 浙江东音泵业股份有限公司 | Cooling system of submersible motor for well |
| CN203560108U (en) * | 2013-12-02 | 2014-04-23 | 温岭市金翼机电有限公司 | Submersible pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11808268B2 (en) | 2020-10-19 | 2023-11-07 | Milwaukee Electric Tool Corporation | Stick pump assembly |
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|---|---|
| CN109617318B (en) | 2019-09-27 |
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