CN102788026A - Anti-leaking sealing method of full-sealing liquid pump - Google Patents
Anti-leaking sealing method of full-sealing liquid pump Download PDFInfo
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- CN102788026A CN102788026A CN201110140688XA CN201110140688A CN102788026A CN 102788026 A CN102788026 A CN 102788026A CN 201110140688X A CN201110140688X A CN 201110140688XA CN 201110140688 A CN201110140688 A CN 201110140688A CN 102788026 A CN102788026 A CN 102788026A
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- isolated shield
- rotor
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- metallic seal
- pump
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Abstract
Provided is an anti-leaking sealing method of a full-sealing A type liquid pump. The liquid pump comprises a pump body (9) and a dragging motor formed by a rotor (2) and a stator (1). The sealing method is characterized in that A. the rotor (2) and the stator (1) and the pump body (9) are surrounded by a metal sealing isolation shield (4) in three-dimensional mode, a local part of the metal sealing isolation shield (4) between the rotor (2) and the stator (1) is made of thin non-magnetic-conductive materials, and the local part of the metal sealing isolation shield (4) is arranged at an inner ring circumference portion attached to the stator (1) embedded into a winding closely; and B. gaps of the metal sealing isolation shield (4) are achieved through undetachable welding process. By means of the sealing method, liquid molecules inside the liquid pump are prevented from leaking to the outside, and the sealing method is suitable for manufacture of a common water pump, and especially suitable for manufacture of an improved liquid pump with high requirement levels of leaking preventing and an improved submersible water pump arranged underwater for a long time.
Description
Technical field
The present invention relates to the sealing configuration technology of liquid pump, related in particular to the structural type of the hermetically sealed A type liquid pump that can stop external leakage liquid (water) molecule.
Background technique
At present, the size specification various liquid pumps different with model emerge in an endless stream, and the submersible pump of water pump especially wherein and its top level structure form is all the more so, and therefore, liquid pump becomes the quite extensive and ripe a kind of power equipment of current purposes.
Its deficiency is: the axle envelope place that during operation of present liquid pump mainly is it is easily to its inner liquid of external leakage; And this leakage is for the pump housing of its main body of conduct that constitutes liquid pump; Be inessential, and main problem is: if what liquid pump leaked is precious liquid; Will cause damage economically or tremendous loss:, will cause the deceleration of motor even burn motor and damage if let in the submersible pump dragging motor dragging motor of intrusive contact that seeped water to it.
For example: the sealing configuration of existing technology submersible pump is dismountable; No matter whether its work; Under situation about placing over a long time under water, be that to be difficult to accomplish definitely to prevent water to penetrate into its dragging motor inner, cause its dragging motor to slow down even burn and damage.
Again for example: in many industrial occasions, the ammonia pump that is adopted in the large-scale refrigerating system that high-rise freezer uses, the wherein leakage of ammonia is exactly inevitable, and this will improve the operating cost of freezer significantly; If what adopt in the middle of the refrigeration system is efficient and the refrigeration agent of high standard, so; From liquid pump inside to the such refrigeration agent of external leakage; Just do not allowed, just because like this, be difficult in the large-scale refrigerating system that high-rise freezer uses adopt efficient and the refrigeration agent of high standard (costliness).
Summary of the invention
The present invention's purpose:
Be exactly in order to pass through a kind of improvement to the sealing configuration of existing technology.---solve the external leakage problem of water molecule in the liquid pump from overall structure.
In order to realize the object of the invention, intend the technology below adopting:
The present invention includes: the two dragging motor that constitutes of stator by rotor and embedding winding of conventional structure form passes through the pump housing of its rotating shaft drive, and is positioned at outermost protective coat:
It is characterized in that:
The two is cingens with three-dimensional form by the metallic seal Isolated Shield for A, above-mentioned rotor and the above-mentioned pump housing; And; Be used for that this rotor and this stator metallic seal Isolated Shield between the two is local to adopt slim non-magnet material to serve as; And the metallic seal Isolated Shield part that this slim non-magnet material is made is arranged on the interior ring circumferential location of being close to the stator that embeds winding;
B. all realize through non-removable welding procedure in all slits that described metallic seal Isolated Shield relates to itself.
C. described metallic seal Isolated Shield structurally other positions except the motor shaft envelope is sentenced has been implemented the seal of inverted cone body to dragging motor and the pump housing between the two simultaneously.
---described metallic seal Isolated Shield is that the two constitutes by Isolated Shield chamber, top that includes rotor and the Isolated Shield chamber, bottom that includes the whole pump housing, and is to realize through the way that the integral solder assembly is implemented in the last assembly unit of this two part.
The present invention and existing technology characteristics relatively:
Because the two is cingens with three-dimensional form by the metallic seal Isolated Shield for the above-mentioned rotor of the present invention and the above-mentioned pump housing; And all slits that this metallic seal Isolated Shield relates to itself realize through non-removable welding procedure that all this just is: structural type of the present invention can stop the fluid molecule in the liquid pump to leak into the external world to have created condition.
Description of drawings
Illustrated a kind of structure embodiment of the present invention who is provided with the metallic seal Isolated Shield.
1: the motor stator that embeds winding; 2: rotor; 3: motor bearings; 4: the metallic seal Isolated Shield; 5; Protective coat; 6: machine shaft; 7: motor shaft seals or is provided with the position of this envelope; 8: the liquid-discharging tube interface; 9: the pump housing (for example: belong to blade type commonly used); 10: the liquid inlet pipe interface.
Embodiment
Key of the present invention is; Be provided with between motor stator 1 and rotor 2 that (non-magnet material has drawn from stainless steel or brass by slim (desirable 0.1 millimeter of its thickness); Or the like) the metallic seal Isolated Shield 4 processed; And other positions of metallic seal Isolated Shield 4 can adopt abundant material to produce (magnitude that its thickness is 2 to 4 millimeters); Must adopt welding procedure to realize (comprise liquid inlet pipe interface 10 and liquid-discharging tube interface 8 the two be Type of Welding) and constitute slit between metallic seal Isolated Shield 4 different parts with being connected of metallic seal Isolated Shield 4; And should forbid to occur the phenomenon of rosin joint or dry joint; This Isolated Shield 4 whole final molding can adopt and let the Isolated Shield 4 of Isolated Shield 4 and the bottom pump housing 9 parts of top dragging motor part separately after the moulding, and the way of carrying out the assembly unit of this two part again and implementing the last assembly of integral solder realizes.---purpose is: let form top cavity (including rotor 2 structures) and bottom cavity (including the entire infrastructure of the pump housing 9) through the metallic seal Isolated Shield 4 after the welding assembly, unique passage that can penetrate (leakage) liquid or gas molecule is exactly that motor shaft seals 7 places between this two cavity; If the liquid desires in the pump housing 9 are sealed 7 places through motor shaft and got into the top cavity, will receive the jacking effect of the existing gas of this top inside cavity (air) and be difficult to get into.
Since the present invention when working (motor intensifications) interior gas (air) temperature of these Isolated Shield 4 top cavitys when not working be different, according to the principle of expanding with heat and contract with cold:
When motor quits work; Be that metallic seal Isolated Shield 4 cavity temperatures are when relatively low; The liquid (water) that the pump housing 8 inside will have a minute quantity seals 7 from motor shaft and upwards infilters in the chamber on metallic seal Isolated Shield 4 tops; Because the infiltration of liquid (water), also can improve gas (air) in this chamber, top simultaneously to the jacking dynamics of this infiltration, make the jacking dynamics of this water percolating capacity and this gas (air) reach balance; At last, let the infiltration liquid (water) of above-mentioned minute quantity be deposited on the bottom position of the inverted cone body in the chamber, metallic seal Isolated Shield 4 top.---this minute quantity infiltrates that the deposition of liquid (water) is few probably with the naked eye to be seen to being difficult to.
When machine operation; Be that metallic seal Isolated Shield 4 cavity temperatures are when higher relatively; This top intracavity gas (air) will increase for infiltering the downward jacking dynamics of liquid (water) of coming, and the liquid (water) that forces above-mentioned infiltration seals 7 from motor shaft and withdraws from this Isolated Shield 4 on this top by former road.
In addition; If the present invention is arranged under water whether (no matter its work) always, then the underwater environment variation of temperature in summer and winter also can influence the quantity that on average normally stockpiles fluid (water) of the bottom position of inverted cone body in the metallic seal Isolated Shield 4 top inner chambers.
Obviously, the key that the present invention can set up is: let metallic seal Isolated Shield 4 be spliced into overall structure form at last through welding, and, also do not allow to exist the piece position of rosin joint or dry joint.---let gas (air) storage entities of top cavity " hermetically sealed " type that forms except motor shaft seals position, 7 place of metallic seal Isolated Shield 4, reach and let air molecule or water molecule definitely can't therefrom penetrate the degree of (leakage).
If; Certain position of metallic seal Isolated Shield 4 is to adopt the sealing material of one type on dismountable nonmetal rubber and fastening enforcement through screw seals; So; The air on these Isolated Shield 4 cavity tops still can penetrate away from above-mentioned flexible non-metallic sealing material, just its transmission rate may be slowly (it is not all right that bicycle and air tube a period of time do not inflate---itself can't stop penetrating of gas molecule).
If; Certain position of metallic seal Isolated Shield 4 is to adopt dismountable two very smooth metal flats to seal through fastening enforcement of screw; So; Air in these Isolated Shield 4 cavitys still can be from (all there be roughness in smooth again any plane---its smooth slit of pressing can't stop penetrating of gas molecule) of passing between above-mentioned two very smooth metal flats, just its transmission rate may be slowly some.
More than two instances proved fully why the existing technology submersible pump exists the long-term problem that is provided with under water of " being difficult to accomplish " described in " background technique ".---this be because: can't resist the cause that gas molecule or fluid molecule penetrate at dismountable sealing configuration that its key position adopts from its sealing defence line in the existing technology.
What as everyone knows, the dragging motor of the pump housing 9 was abstained from most is exactly to let rotor 2 touch water and rotary work in water.Because the stickiness of water is very big, the output of the rotating speed of limit rotor 2 and moment to a great extent.---the rotating speed of rotor 2 slows down to increase considerably and embeds the electric current that passes through in stator 1 winding, burns out or damage the winding that embeds in the motor stator 1 at last, causes the motor corrupted.
Let as far as possible thin among the present invention and non-magnetic metallic seal Isolated Shield 4 is implemented drive fit with the inner circumference of motor stator 1; Exist under the situation in gap between rotor 2 and this Isolated Shield 4 and let, the effect through rotating magnetic field lets rotor 2 rotary work in gas (air) all the time.---because extraneous desire gets into the jacking that the inner water of the present invention receives the air in " hermetically sealed " type metallic seal Isolated Shield 4 inner chambers among the present invention; Under any circumstance; Have no chance to get in a large number in the middle of these Isolated Shield 4 inner chambers and let rotor 2 touch water; And allow the infiltration that is deposited on these Isolated Shield 4 intracavity bottoms of minute quantity, be entail dangers to rotor 2 normal rotary works not.
And independent motor stator 1 prevents to overflow the structure of water and accomplishes easily, belongs to the existing technology scope, and for example, the simplest way is: the stator 1 that will embed winding soaks to dry afterwards in insulated paint again just can have been realized.Obviously; This motor stator 1 that has embedded winding belongs to dismountable character (it is not surrounded by metallic seal Isolated Shield 4) in structure of the present invention; By contrast; Winding coil in dismountable motor stator 1 is easy to damage in structure of the present invention, and structure so is favourable for the maintenance of motor stator 1.
The explanation of the sealing configuration that relevant middle pump body of the present invention 9 relates to:
Metallic seal Isolated Shield 4 described in the present invention surrounds the above-mentioned rotor 2 and the above-mentioned pump housing 9 (five-star structural type) with three-dimensional form.
Yet; As long as keep under the prerequisite that the end face of the pump housing 9 belongs to metallic seal Isolated Shield 4 structural types (minimum rate of accumulation of structure); Allow five faces leakages in remaining bottom surface and front, rear, left and right (prerequisite is to use and allows to leak) among the present invention, then can give and cause some convenient in the manufacturing of complete machine of the present invention.---such structural type that is inferior to the present invention's technology, can be arranged at submersible pump under water over a long time for processing, its complete machine performance still can be considerably beyond the requirement of existing technology.
In general, motor is a very ripe product, as long as guarantee rotor 2 rotary work in air all the time wherein, so, motor just is not easy to damage very much.Therefore, the rotor among the present invention 2 is arranged in the metallic seal Isolated Shield 4 also just worries when long, having taken place from the problem of decreasing easily after its operation.---the long-life machine that generally drags by motor; For example: the full seal type compressor that household electric refrigerator or family expenses sky wither and adopt in the device; It is exactly by compressed pneumatic pump and the durable apparatus of the two full seal type of forming of dragging motor thereof; Wherein the common working life of the disposable adapted of this two durable components is mostly more than 10 years, and the common working life of the disposable adapted of world's famous brand products is mostly more than 15 years or 20 years.
Claims (2)
1. the leak-tight seal method of a hermetically sealed A type liquid pump,
Comprise: the pump housing (9) that drives through its rotating shaft (6) by the dragging motor of rotor (2) and the two formation of stator (1) that embeds winding of conventional structure form, and be positioned at outermost protective coat (5);
It is characterized in that:
A. the two is cingens with three-dimensional form by metallic seal Isolated Shield (4) for the above-mentioned rotor (2) and the above-mentioned pump housing (9); And; Be used for that this rotor (2) and this stator (1) the metallic seal Isolated Shield (4) between the two is local to adopt slim non-magnet material to serve as; And metallic seal Isolated Shield (4) part that this slim non-magnet material is made is arranged on the interior ring circumferential location of being close to the stator (1) that embeds winding;
B. all realize through non-removable welding procedure in all slits that described metallic seal Isolated Shield (4) relates to itself;
C. described metallic seal Isolated Shield (4) structurally other positions except motor shaft envelope (7) is sentenced has been implemented the seal of inverted cone body to dragging motor and the pump housing (9) between the two simultaneously.
2. the leak-tight seal method of a hermetically sealed A type liquid pump according to claim 1; It is characterized in that: described metallic seal Isolated Shield (4) is that the two constitutes by Isolated Shield chamber, top that includes rotor (2) and the Isolated Shield chamber, bottom that includes the pump housing (9), and is to realize through the way that the integral solder assembly is implemented in the last assembly unit of this two part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110140688.XA CN102788026B (en) | 2011-05-16 | 2011-05-16 | Anti-leaking sealing method of full-sealing liquid pump of with detachable motor stator during operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110140688.XA CN102788026B (en) | 2011-05-16 | 2011-05-16 | Anti-leaking sealing method of full-sealing liquid pump of with detachable motor stator during operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788026A true CN102788026A (en) | 2012-11-21 |
| CN102788026B CN102788026B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110140688.XA Expired - Fee Related CN102788026B (en) | 2011-05-16 | 2011-05-16 | Anti-leaking sealing method of full-sealing liquid pump of with detachable motor stator during operation |
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| Country | Link |
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| CN (1) | CN102788026B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526160A (en) * | 2014-10-16 | 2016-04-27 | 德昌电机(深圳)有限公司 | Gear pump |
| CN106704209A (en) * | 2016-12-22 | 2017-05-24 | 李峰 | Sinking pump for exploiting combustible ice with decompression method |
| CN106762701A (en) * | 2016-12-22 | 2017-05-31 | 李峰 | The immersible pump of combustible ice is exploited for the method that depressurizes |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030077191A1 (en) * | 2001-10-24 | 2003-04-24 | Pierburg Gmbh | Wet rotor-type pump |
| EP1372248A2 (en) * | 2002-06-13 | 2003-12-17 | Wilo Ag | Assembling method of air-gap sleeve motor |
| JP2005299617A (en) * | 2004-04-16 | 2005-10-27 | Mitsuba Corp | Motor pump |
| EP1967288A2 (en) * | 2007-03-08 | 2008-09-10 | General Electric Company | Rotor and stator assemblies that utilize magnetic bearings for use in corrosive environments |
| 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 |
| CN101821512A (en) * | 2007-10-09 | 2010-09-01 | 阿克海底公司 | Protection system for subsea seawater injection pumps |
-
2011
- 2011-05-16 CN CN201110140688.XA patent/CN102788026B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030077191A1 (en) * | 2001-10-24 | 2003-04-24 | Pierburg Gmbh | Wet rotor-type pump |
| EP1372248A2 (en) * | 2002-06-13 | 2003-12-17 | Wilo Ag | Assembling method of air-gap sleeve motor |
| JP2005299617A (en) * | 2004-04-16 | 2005-10-27 | Mitsuba Corp | Motor pump |
| EP1967288A2 (en) * | 2007-03-08 | 2008-09-10 | General Electric Company | Rotor and stator assemblies that utilize magnetic bearings for use in corrosive environments |
| CN101821512A (en) * | 2007-10-09 | 2010-09-01 | 阿克海底公司 | Protection system for subsea seawater injection pumps |
| 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526160A (en) * | 2014-10-16 | 2016-04-27 | 德昌电机(深圳)有限公司 | Gear pump |
| CN106704209A (en) * | 2016-12-22 | 2017-05-24 | 李峰 | Sinking pump for exploiting combustible ice with decompression method |
| CN106762701A (en) * | 2016-12-22 | 2017-05-31 | 李峰 | The immersible pump of combustible ice is exploited for the method that depressurizes |
| CN106704209B (en) * | 2016-12-22 | 2018-09-04 | 李峰 | A kind of immersible pump for depressurizing method exploitation combustible ice |
| CN106762701B (en) * | 2016-12-22 | 2019-01-08 | 嵊州市森创科技有限公司 | For depressurizing the immersible pump of method exploitation combustible ice |
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| Publication number | Publication date |
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| CN102788026B (en) | 2015-07-08 |
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Address after: 317523 Zhejiang city of Wenling Province town industrial zone Zeguo Danya Applicant after: Liang Jialin Address before: Hangzhou City, Zhejiang province 310018 Xiasha College of mechanical and electrical engineering China Jiliang University Applicant before: Liang Jialin |
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Free format text: CORRECT: ADDRESS; FROM: 310018 HANGZHOU, ZHEJIANG PROVINCE TO: 317523 TAIZHOU, ZHEJIANG PROVINCE |
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Granted publication date: 20150708 Termination date: 20160516 |