CN107061307A - Utilize the submersible pump structure of air jacking principle waterproof sealing - Google Patents
Utilize the submersible pump structure of air jacking principle waterproof sealing Download PDFInfo
- Publication number
- CN107061307A CN107061307A CN201710251074.6A CN201710251074A CN107061307A CN 107061307 A CN107061307 A CN 107061307A CN 201710251074 A CN201710251074 A CN 201710251074A CN 107061307 A CN107061307 A CN 107061307A
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- isolated shield
- disposable
- metal sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- 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
- F04D13/0606—Canned motor pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- 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
- F04D13/0606—Canned motor pumps
- F04D13/0626—Details of the can
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
Abstract
A kind of submersible pump structure of utilization air jacking principle waterproof sealing, its key is：Rotor (2) is allowed to be surrounded with stator (1) by the metal sealing cage (4) that the gas or fluid molecule realized completely by welding procedure can not be penetrated with stereogenic, due to the air jacking of cage (4) intracavitary, environmental liquids molecule, which can not be passed through, to be provided with electric machine shaft gland (7) position that there is gap in the bottom in back taper and is contacted with the rotor (2) of intracavitary, definitely avoid the winding cause thermal damage for slowing down and causing stator (1), so that the disposable life-span of complete machine Maintenance free depends on being not easy to the life-span of the rotor (2) and the actuating unit of stator (1) formation of corrupted.--- it cause complete machine under water the disposable residence time far more than have a sealing ring and definitely can not antiseepage all prior art constructions immersible pump, specifically its under water the disposable residence time can be more than more than 20 years.
Description
Divisional application
Original bill application number " 2011100696160 " the original bill applying date " on March 21st, 2011 "
Original bill title " a kind of full seal type waterproof sealing method of submersible pump structure "
Technical field
The present invention relates to the sealing structure technology of immersible pump.
Background technology
At present, the size specification various immersible pumps different from model emerge in an endless stream, and are purposes quite extensively ripe one
Power-equipment is planted, its deficiency is：It is mainly during operation at its axle envelope easily to its internal liquid of external leakage, and this lets out
It is inessential for leaking the liquid pump as its main part for constituting immersible pump, and major problem is that：Once let out
The liquid of leakage takes care of the pence in the inside of the immersible pump, after the dragging motor for invading liquid pump, it will cause the motor
Damage, as a result cause immersible pump to shut down.--- the sealing generally for immersible pump mainly relies on soft nonmetallic seal washer
And its detachable type fastener of the class of screw one is realized, if very conscientious when it is assembled,：In disposable diving operation
The central time that can continue to use is longer (time of water immersion dragging motor is slower), otherwise, then：In disposable diving operation
Central time that can continue to use is just very short (time of water immersion dragging motor is very fast).
Therefore, when people use immersible pump operation, the general duration will not be oversize, also, after use, just as soon as possible
It is left the water placement, allows the infiltration come into inside immersible pump to have an opportunity the outside for being exuded to the body again.——
Compact submersible pump is so done still, can large and medium-sized immersible pump so do and just have trouble
The reason for causing above-mentioned behaviour in service, the problem of mainly seal structure of submersible pump is designed, secondly also someone's frock
The problem of with error：For example, the fasteners tight of the class of screw one is not only increased even if having screwed as requested yet
The time that can continue to use among disposable diving operation stated adds some；And be difficult to：
The immersible pump is allowed to use under water always, it is again long-term after shutdown to place under water, use under water again afterwards,
It is once more long-term to place under water, use under water once more afterwards ... ..., liquid pump or dragging electricity until constituting the immersible pump
Machine alternative one oneself causes corrupted and shut down after long-term work abrasion.--- allow immersible pump underwater ring always
In border " throughout one's life ".
The content of the invention
The purpose of the present invention：
It is exactly that, in order to be improved by the sealing structure to prior art, the problem of solving above-mentioned " being difficult to " is realized
Can allow immersible pump always in underwater environment " throughout one's life " the problem of.
In order to realize the object of the invention, intend using following technology：
The present invention includes：The dragging motor being made up of the stator of rotor and embedded winding of conventional structure form passes through
The liquid pump that its rotating shaft drives, and positioned at outermost protective coat；It is characterized in that：
At least above-mentioned dragging motor being made up of rotor and stator is by metal sealing Isolated Shield with stereogenic
Surround, also, electric machine shaft gland is provided with the bottom of back taper in the metal sealing Isolated Shield；
All gaps that described metal sealing Isolated Shield is related to all are come real by non-removable welding procedure
Existing (three-dimensional defense line of metallic molecule formation can prevent gas molecule and fluid molecule from therefrom penetrating), also, metal sealing
Cage is finally molded during final assembly by welding.
Described metal sealing Isolated Shield is to implement positioning (herein by dismountable screw fastener and liquid pump
It is detachable without for fear of realizing the features of the present invention).
The present invention compared with the prior art the characteristics of：
Because the present invention in existing routine mainly by the basis of common liquid pump structure type, adding main
Be to the dragging motor being made up of rotor and both motor stators with the three-dimensional metal sealing Isolated Shield for surrounding property Lai
Realize, and by the air pressure in the Isolated Shield inner chamber, can at least prevent and be leaked upwards at its electric machine shaft gland
The water come in finally touch and and then the possibility that allows rotor to be rotated in water, --- the viscosity of water is very big, it will
The winding for causing the rotating speed of rotor to be greatly lowered and finally damaging and (burn out) in embedded motor stator.--- so
" allow extraneous shipwreck to enter, or be merely able to micro entrance ", is to solve above-mentioned " being difficult to " in sealing structure to allow
Immersible pump always in underwater environment " throughout one's life " the problem of create condition；If the present invention need not be allowed to be placed in water forever
Under " throughout one's life " when, at least can be：The cumulative time for working and leaving unused disposable under water of the invention is allowed far more than now
The level that having technical pattern can reach creates condition.
Brief description of the drawings
Figure illustrates a kind of constructive embodiment of the invention for being provided with metal sealing Isolated Shield.
1：The motor stator of embedded winding；2：Rotor；3：Motor bearings；4：Metal sealing Isolated Shield；5：Motor
Rotating shaft；6：Electric machine shaft gland or the position that the axle envelope is set；7：Discharge opeing interface tube；8：Liquid pump is (for example：Conventional blade type)；9：Spiral shell
Silk；10：Feed liquor interface tube.
Embodiment
The present invention's it is critical that the motor being made up of motor stator 1 and both rotors 2 all by metal sealing every
Off screen covers 4 closings wherein, and the machine shaft 5 passes downwardly through the directly dragging rotary work of liquid pump 8 of electric machine shaft gland 6.--- it is aobvious
So, by the air of the intracavitary of metal sealing Isolated Shield 4 of welding fabrication for being intended to enter the outer of the intracavitary by electric machine shaft gland 6
Boundary's liquid will produce a strong backwater effect：
Air themperature when (motor heating) be not with working during due to present invention work in the cavity of Isolated Shield 4 is to differ
Sample, according to the principle expanded with heat and contract with cold：
When motor is stopped, i.e., when the cavity temperature of metal sealing Isolated Shield 4 is relatively low, extraneous minimal amount of water
Understand at electric machine shaft gland 6 (common waterproof axle envelope can be used --- secondly just the side of being difficult to seeps water in the case that there is pressure difference at end)
Infiltration is come in, while can also improve jacking dynamics of the air to above-mentioned infiltration of the intracavitary so that the water percolating capacity and the air
Jacking dynamics reach balance.--- infiltration is deposited on the lower position of the intracavitary back taper of Isolated Shield 4.
When motor works, i.e., when the cavity temperature of metal sealing Isolated Shield 4 is of a relatively high, the chamber air is for infiltering
The outside jacking dynamics of water come will increase, force the above-mentioned infiltration for coming into the intracavitary of Isolated Shield 4 by former road from this
The lower position of the intracavitary back taper of Isolated Shield 4 is exited.
In addition, if the present invention is set under water always, the change of the underwater environment temperature in summer and winter also can shadow
Ring the average normal ponding quantity of the inner chamber bottom of Isolated Shield 4.
Obviously, the key that the present invention can be set up is：Make metal sealing Isolated Shield 4 last in the present invention by welding
Structure on be molded, moreover, the piece position that also should not be allowed to exist rosin joint or dry joint is present.--- allow metal sealing to isolate
Shielding 4 turns into the air storage entities of " hermetically sealed " type, reaches the journey that air molecule or hydrone definitely can not therefrom be penetrated
Degree.
If some position of metal sealing Isolated Shield 4 is the sealing material using dismountable nonmetallic class of rubber one
Material is implemented sealedly by the fastening of screw 9, then, the air of the inside cavity of Isolated Shield 4 still can be from above-mentioned flexibility
Penetrated away in nonmetallic encapsulant, simply its transmission rate may be slowly (when one section of bicycle and air tube
Between have to inflate --- itself can not prevent penetrating for gas molecule).
If some position of metal sealing Isolated Shield 4 is the metal flat using dismountable two unusual lights
Implemented by the fastening of screw 9 sealedly, then, the air of the inside cavity of Isolated Shield 4 still can be non-from above-mentioned two
Passed through between the metal flat that ordinary light is slided (again also all there is roughness in smooth any plane --- its smooth seam pressed
Gap can not prevent penetrating for gas molecule or fluid molecule), simply its transmission rate may slowly some.
Two examples of the above fully demonstrate the prior art immersible pump that is yes exist it is " difficult described in " background technology "
To accomplish " it is long-term under water " throughout one's life " the problem of.--- this is due to：In the prior art its key position use can
The sealing structure of dismounting can not resist the reason that gas molecule or fluid molecule are penetrated from its sealing defence line.
To allow that its is demountable as the structure type of the common and conventional liquid pump 8 used in the present invention, this be because
It is also not interfere with its normal work even leaking or intaking everywhere in its underwater operation for its demountable structure
's；The rotation as long as rotor in the dragging motor of liquid pump 8 does not soak.--- because being very big as the viscosity of liquid water
, it will largely limit or reduce the rotating speed of rotor 2 and the output of torque.The spin down of rotor 2 can be big
The electric current (finally burning out motor) passed through in the winding of the embedded stator 1 of amplitude increase.Therefore, key of the invention is to try to allow
Dragging motor absolutely not can be rotated enough in immersion, and be this hair by the metal sealing shielding construction of " hermetically sealed " type of welding fabrication
The bright most critical that can be set up.
In general, motor is a highly developed product, as long as ensuring that rotor 2 therein is in atmosphere all the time
Rotary work, then, motor is not just allowed fragile very much.Therefore, the rotor 2 in the present invention is arranged on metal sealing
Also just without worrying easily occur after being run in long-term from the problem of damage in Isolated Shield 4.--- it is general by motor
The durable apparatus of dragging, for example：Washing machine, refrigerator and sky wither device, etc., and the disposable adapted life-span of its motor is mostly 10
More than year, and the disposable adapted life-span of the motor of World Famous Brand product adapted is mostly at 15 years or more than 20 years.
Claims (1)
1. a kind of submersible pump structure of utilization air jacking principle waterproof sealing,
Including：The two dragging motor for constituting of the stator (1) by rotor (2) and embedded winding of conventional structure form by it
The liquid pump (8) of rotating shaft (5) dragging；
It is characterized in that：
The dragging motor being at least made up of both rotor (2) and stator (1) is by metal sealing Isolated Shield (4) with stereogenic
Surround, also, electric machine shaft gland (6) is provided with the bottom of back taper in the metal sealing Isolated Shield (4)；
All gaps that one, metal sealings Isolated Shield (4) is related in itself are all come real by non-removable welding procedure
It is existing, also, metal sealing Isolated Shield (4) is finally molded during final assembly by welding；
Two, metal sealings Isolated Shields (4) are to implement to position by dismountable screw (9) fastener and liquid pump (8)；
Three, disposably set the underwater duration when being expected using immersible pump：
By depending on constitute immersible pump the disposable adapted life time of dragging motor length, i.e., at 10 years or more than 20 years.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251074.6A CN107061307A (en) | 2011-03-21 | 2011-03-21 | Utilize the submersible pump structure of air jacking principle waterproof sealing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110069616.0A CN102691664B (en) | 2011-03-21 | 2011-03-21 | Using the submersible pump structure of air jacking waterproof sealing |
| CN201710251074.6A CN107061307A (en) | 2011-03-21 | 2011-03-21 | Utilize the submersible pump structure of air jacking principle waterproof sealing |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110069616.0A Division CN102691664B (en) | 2011-03-21 | 2011-03-21 | Using the submersible pump structure of air jacking waterproof sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061307A true CN107061307A (en) | 2017-08-18 |
Family
ID=46857337
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710251074.6A Pending CN107061307A (en) | 2011-03-21 | 2011-03-21 | Utilize the submersible pump structure of air jacking principle waterproof sealing |
| CN201710251093.9A Pending CN106837817A (en) | 2011-03-21 | 2011-03-21 | Using the design of the submersible pump structure of air jacking waterproof sealing |
| CN201110069616.0A Expired - Fee Related CN102691664B (en) | 2011-03-21 | 2011-03-21 | Using the submersible pump structure of air jacking waterproof sealing |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710251093.9A Pending CN106837817A (en) | 2011-03-21 | 2011-03-21 | Using the design of the submersible pump structure of air jacking waterproof sealing |
| CN201110069616.0A Expired - Fee Related CN102691664B (en) | 2011-03-21 | 2011-03-21 | Using the submersible pump structure of air jacking waterproof sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN107061307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802511A (en) * | 2017-11-16 | 2019-05-24 | 中国计量大学 | The dragging motor and its application method of adapted underwater engine instrument |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935621A (en) * | 2013-01-17 | 2014-07-23 | 青岛天力建筑加固工程有限公司 | Waterproof sealing box |
| CN106382237A (en) * | 2016-10-19 | 2017-02-08 | 中国计量大学 | Application method and structure of pump including immersion pump supported by air jacking seal |
| CN113404699A (en) * | 2016-10-19 | 2021-09-17 | 中国计量大学 | Water pump capable of achieving both diving and self-suction functions and structure of motor of water pump |
| CN106499643B (en) * | 2016-12-22 | 2018-08-17 | 李峰 | The immersible pump of combustible ice is exploited suitable for depressurizing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070372U (en) * | 1990-05-19 | 1991-01-30 | 吴小兵 | Miniature water pump |
| CN2343404Y (en) * | 1998-09-15 | 1999-10-13 | 孙立和 | Water leakage alarm for full-closed submersible pump |
| JP2005220865A (en) * | 2004-02-09 | 2005-08-18 | Japan Atom Energy Res Inst | High temperature high pressure magnet coupling type pump using anti-corrosion material |
| CN2846817Y (en) * | 2005-10-28 | 2006-12-13 | 上海连成（集团）有限公司 | Low cost low noise pump |
| CN101315080A (en) * | 2008-05-13 | 2008-12-03 | 梁嘉麟 | Full sealing type refrigerant fluid pump and its application in high-rise storied house refrigerating system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1012202B (en) * | 1988-02-06 | 1991-03-27 | 陆逢升 | Full dry submerged pump with synergistic selaing system |
| CN2306346Y (en) * | 1997-03-21 | 1999-02-03 | 蔡庆国 | Inflatable water-proof submersible pump for electric machine |
| CN200958486Y (en) * | 2006-10-24 | 2007-10-10 | 何守占 | Submerged pump |
| US20080218008A1 (en) * | 2007-03-08 | 2008-09-11 | General Electric Company | Rotor and Stator Assemblies that Utilize Magnetic Bearings for Use in Corrosive Environments |
| CN201428622Y (en) * | 2009-06-25 | 2010-03-24 | 徐至仁 | Canned electric submersible sewage pump |
-
2011
- 2011-03-21 CN CN201710251074.6A patent/CN107061307A/en active Pending
- 2011-03-21 CN CN201710251093.9A patent/CN106837817A/en active Pending
- 2011-03-21 CN CN201110069616.0A patent/CN102691664B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070372U (en) * | 1990-05-19 | 1991-01-30 | 吴小兵 | Miniature water pump |
| CN2343404Y (en) * | 1998-09-15 | 1999-10-13 | 孙立和 | Water leakage alarm for full-closed submersible pump |
| JP2005220865A (en) * | 2004-02-09 | 2005-08-18 | Japan Atom Energy Res Inst | High temperature high pressure magnet coupling type pump using anti-corrosion material |
| CN2846817Y (en) * | 2005-10-28 | 2006-12-13 | 上海连成（集团）有限公司 | Low cost low noise pump |
| CN101315080A (en) * | 2008-05-13 | 2008-12-03 | 梁嘉麟 | Full sealing type refrigerant fluid pump and its application in high-rise storied house refrigerating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802511A (en) * | 2017-11-16 | 2019-05-24 | 中国计量大学 | The dragging motor and its application method of adapted underwater engine instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102691664A (en) | 2012-09-26 |
| CN102691664B (en) | 2017-04-05 |
| CN106837817A (en) | 2017-06-13 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |