CN114793031A - Deep well pump and motor thereof - Google Patents
Deep well pump and motor thereof Download PDFInfo
- Publication number
- CN114793031A CN114793031A CN202111676111.0A CN202111676111A CN114793031A CN 114793031 A CN114793031 A CN 114793031A CN 202111676111 A CN202111676111 A CN 202111676111A CN 114793031 A CN114793031 A CN 114793031A
- Authority
- CN
- China
- Prior art keywords
- motor
- sealing
- pressure
- carbon fiber
- cavity
- 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
Images
Classifications
-
- 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
-
- 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
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
-
- 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a deep well pump and its motor, including: a rotor and a stator disposed within the motor cartridge; the motor comprises a first sealing assembly and a second sealing assembly, wherein the first sealing assembly is used for sealing between the first end of the carbon fiber shielding sleeve and the motor cylinder, the second sealing assembly is used for sealing between the second end of the carbon fiber shielding sleeve and the motor cylinder, the motor cylinder is divided into an inner cavity and an outer cavity, and insulating fluid is filled in the outer cavity; the sealing assembly can transmit the pressure of the high-pressure cavity to the low-pressure cavity, and the pressure difference between the inside and the outside of the carbon fiber shielding sleeve is reduced. The high pressure of inner chamber passes through the insulating fluid of seal assembly transmission to the exocoel, because pressure is less to insulating fluid's influence, is little to the influence of motor, can guarantee the pressure balance in the inboard and the outside of carbon fiber shield cover after transmitting the high pressure of water to insulating fluid simultaneously, effectively guarantees sealed effect, can solve the sealed high requirement under the inside and outside pressure differential condition. Because the stator generates heat, the insulating fluid expands, and the sealing assembly contracts, the pressure balance of the inner cavity and the outer cavity is achieved, and the sealing effect is ensured.
Description
Technical Field
The invention relates to the technical field of deep-well pumps, in particular to a deep-well pump and a motor thereof.
Background
The deep well pump includes motor and pump body axially connected into one integral and is one pump immersed in underground water well for pumping and conveying water.
Deep well pumps are widely used in agricultural irrigation, industrial and mining enterprises, municipal water supply and drainage, and sewage treatment. The deep well pump needs to be operated in deep underground, and the structure requirement of the motor is more special than that of a common motor because the motor is simultaneously submerged in water.
At present, the inner ring of the stator of the motor is isolated from the outer side of the rotor by a shielding sleeve, and the shielding sleeve is a non-metal part and is usually sealed by epoxy resin. However, when the deep well pump is located in deep water, the pressure of water entering the rotor is high, and the pressure of water entering the stator is low, so that the sealing effect of epoxy resin is affected, liquid is filled in the stator of the motor, and the normal use of the motor is affected.
Therefore, how to realize the sealing between the stator and the shell of the motor to prevent water and impurities from entering the inner cavity of the stator is a problem to be solved urgently by the person in the technical field.
Disclosure of Invention
In view of this, the present invention provides a motor for a deep-well pump, which realizes sealing between a stator and a casing of the motor to prevent water and impurities from entering an inner cavity of the stator. In addition, the invention also provides a deep-well pump with the motor.
In order to achieve the purpose, the invention provides the following technical scheme:
a motor for a deep well pump, comprising:
a motor cartridge, a rotor and a stator disposed within the motor cartridge;
a carbon fiber shielding sleeve;
a first sealing assembly for sealing between a first end of the carbon fiber shielding sleeve and the motor barrel and a second sealing assembly for sealing between a second end of the carbon fiber shielding sleeve and the motor barrel, the carbon fiber shielding sleeve dividing the motor barrel into an inner cavity and an outer cavity by the first sealing assembly and the second sealing assembly, the rotor being located in the inner cavity, the stator being located in the outer cavity, the outer cavity being filled with an insulating fluid;
when the carbon fiber shielding sleeve enters deep water, the inner cavity is a high-pressure cavity, the outer cavity is a low-pressure cavity, the first sealing assembly and/or the second sealing assembly can transmit the pressure of the inner cavity to the outer cavity, and the pressure difference between the inside and the outside of the carbon fiber shielding sleeve is reduced.
Preferably, in the motor, the first seal assembly includes:
the cover is established the pressure balance rubber spare in the carbon fiber shield cover outside, pressure balance rubber spare is for having the open-ended extensible member, the opening can with the inner chamber intercommunication, the first side of pressure balance rubber spare with the outside sealing connection of carbon fiber shield cover, the second side of pressure balance rubber spare with motor cylinder sealing connection.
Preferably, in the above motor, the first side and the second side of the pressure balance rubber member are both bent surfaces.
Preferably, in the motor, the first side of the pressure balance rubber part is close to the bending part of the opening and is connected with the carbon fiber shielding sleeve in a sealing manner through glue injection.
Preferably, in the motor, the motor barrel is provided with a step structure, and a bent part of the second side edge of the pressure balance rubber piece, which is close to the opening, is sealed with the step structure through a rubber compression ring in a compression joint manner.
Preferably, in the motor, the rubber compression ring is an annular sealing member installed inside the pressure balance rubber member, and a middle through hole of the rubber compression ring can communicate the opening with the inner side of the pressure balance rubber member.
Preferably, the motor further comprises a retainer ring sealed between the pressure balance rubber member and the motor upper cover of the motor barrel, the retainer ring is sealed and pressed on the step structure, and a middle through hole of the retainer ring can communicate with the inner cavity.
Preferably, in the motor described above, the second sealing member includes an annular oil sealing member for sealing the outer cavity, the annular oil sealing member being disposed between a motor lower cover of the motor casing and the carbon fiber shielding sleeve, and the oil sealing member and the carbon fiber shielding sleeve are sealed and bonded by glue injection.
A deep well pump comprising an electric motor, wherein the electric motor is any one of the above.
Preferably, in the deep well pump, the motor further comprises a cable channel provided on the motor lower cover for connecting a motor cable and a controller cable, and a cable connection assembly for sealing the cable channel.
The invention provides a motor of a deep well pump, which transmits the high pressure of water in an inner cavity to an insulating fluid in an outer cavity through a first sealing assembly and/or a second sealing assembly, has small influence on the motor due to small influence of the pressure on the insulating fluid, and can ensure the pressure balance between the inner side and the outer side of a carbon fiber shielding sleeve after transmitting the high pressure of the water to the insulating fluid, thereby effectively ensuring the sealing effect and solving the high sealing requirement under the condition of pressure difference between the inner side and the outer side, namely reducing the sealing requirement. When the motor works, the stator heats, the insulating fluid expands, the sealing component contracts, the pressure balance of the inner cavity and the outer cavity is achieved, and the sealing effect is effectively guaranteed.
In addition, because the carbon fiber shielding sleeve has lower hardness, the carbon fiber shielding sleeve can be effectively prevented from being extruded and deformed or even damaged due to the internal and external pressure difference.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a deep well pump disclosed in an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a partially enlarged view of B in fig. 1.
Detailed Description
The invention discloses a motor of a deep well pump, which realizes the sealing between a stator and a shell of the motor so as to prevent water and impurities from entering an inner cavity of the stator. In addition, the invention also provides a deep-well pump with the motor.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1 and 3, the present application discloses a motor of a deep well pump, which comprises a motor barrel 1, a rotor 2, a stator 3, a carbon fiber shield 6, a first sealing assembly and a second sealing assembly. Wherein, the one end and the motor upper cover 4 of motor section of thick bamboo 1 are connected, and the other end is connected with motor lower cover 5, specifically can be the welding, and the convenient direction to the motor of this place distinguishes. The rotor 2 and the stator 3 are main components of the motor, and in order to realize relative sealing of the stator 2 and the rotor 3, a carbon fiber shielding sleeve is arranged in the motor, and the motor barrel 1 is divided into an inner cavity and an outer cavity through a first sealing assembly and a second sealing assembly, wherein the rotor 3 is arranged in the inner cavity, and the stator 2 is arranged in the outer cavity. In order to realize the relative sealing of the inner cavity and the outer cavity, a first sealing assembly is used for sealing between the first end of the carbon fiber shielding sleeve 6 and the motor cylinder 1, and a second sealing assembly is used for sealing between the second end of the carbon fiber shielding sleeve 6 and the motor cylinder 1. And filling the outer cavity with an insulating fluid.
Note that, at least one of the first seal assembly and the second seal assembly is an elastic pressure transmission member capable of transmitting a pressure. During operation, transmit the insulating fluid of exocoel with the high pressure of inner chamber through first seal assembly and/or second seal assembly, and because pressure is less to insulating fluid's influence, little to the influence of motor, can guarantee the pressure balance in the inboard and the outside of carbon fiber shield cover after transmitting the high pressure of water to insulating fluid simultaneously to effectively guarantee sealed effect, and can solve and have sealed high requirement under the pressure differential condition inside and outside, reduce sealed requirement promptly.
In addition, because the carbon fiber shielding sleeve 6 has lower hardness, the carbon fiber shielding sleeve 6 can be effectively prevented from being extruded and deformed or even damaged due to the difference between the internal pressure and the external pressure.
In a preferred embodiment, the first sealing assembly includes a pressure balance rubber member 71 disposed in the outer cavity, that is, the first sealing member is a structural member capable of transmitting pressure in this application, and specifically, the pressure balance rubber member 71 is an expansion member having an opening, and can bear deformation of pressure by expansion, thereby ensuring a sealing effect.
Specifically, the opening of the pressure balance rubber 71 can communicate with the inner cavity, the first side of the pressure balance rubber 71 is connected with the outside of the carbon fiber shielding sleeve 6 in a sealing manner, and the second side of the pressure balance rubber 71 is connected with the motor barrel 1 in a sealing manner. Thus realizing the sealing between the motor cylinder 1 and the carbon fiber shielding sleeve 6.
When in deep water, after water in the inner cavity enters the pressure balance rubber part 71 through the opening, the pressure is transmitted to the insulating fluid in the outer cavity through the pressure balance rubber part 71, namely, the pressure of the inner cavity is released to the outer cavity until the pressure of the inner cavity is the same as that of the outer cavity, so that the stability of the pressure balance rubber part 71 is ensured, the deformation is avoided, and the stability of the sealing effect is ensured.
When the motor works, the stator heats, the insulating fluid expands, the sealing component contracts, the pressure balance of the inner cavity and the outer cavity is achieved, and the sealing effect is effectively guaranteed.
In a preferred embodiment, the first side edge and the second side edge of the pressure balance rubber 71 are both bending surfaces, and the bending structure is used for extending when receiving pressure, so that on one hand, transmission of the pressure is ensured, and on the other hand, damage to the pressure balance rubber 71 caused by overlarge pressure is avoided. In practice, the pressure balance rubber 71 may be provided as an elastic member that can be expanded by pressure, such as a rubber member having a large elasticity. Need set up according to the flexible displacement of pressure balance rubber part 71 to the quantity of buckling, and all in protective range. Further, the shape of the bend is also not particularly limited as long as stretching and shrinking can be achieved.
Because pressure balance rubber spare 71 and carbon fiber shield cover 6 are soft material, can not weld, in order to realize both fixed and sealed, preferably, adopt injecting glue sealing method to realize in this application that the first side of pressure balance rubber spare 71 is close to open-ended department of buckling and is connected with carbon fiber shield cover 6, form first injecting glue piece 74 between the first side of pressure balance rubber spare 71 is close to open-ended department of buckling and carbon fiber shield cover 6 after the cooling.
The connection position between the first side of the pressure balance rubber 71 and the carbon fiber shield 6 can be set according to different needs. In practice, a plurality of glue seals can be arranged between the first side and the carbon fiber shielding sleeve 6 according to the sealing requirement.
The sealing mode of the pressure balance rubber 71 and the motor barrel 1 can adopt a step structure on the motor barrel 1 to be matched with the bending part of the second side edge of the pressure balance rubber 71, and the pressure balance rubber 71 is pressed and sealed by the rubber pressing ring 72.
Since the motor cartridge 1 is made of a metal member and does not deform due to a change in pressure, the sealing connection with the pressure balance rubber member 71 can be achieved by crimping the seal ring. Set up the laminating of buckling department of stair structure and second side on motor cylinder 1 to increase area of contact improves sealed effect.
In a specific embodiment, the rubber pressing ring 72 is an annular seal installed inside the pressure balance rubber 71, and the middle through hole of the rubber pressing ring 72 can communicate the opening with the pressure balance rubber 71. Therefore, high-pressure water can enter the pressure balance rubber piece 71 through the opening and the rubber pressing ring 72, and pressure transmission is realized.
On the basis of the technical scheme, the motor in the application is further provided with a check ring 73 which is sealed between the pressure balance rubber part 71 and the motor upper cover 4 of the motor cylinder 1 at the first sealing part, the check ring 73 is sealed and pressed at the step, and a middle through hole of the check ring 73 can be communicated with the inner cavity. Through the arrangement, when the motor is arranged in deep water, the inner cavity of the rotor 2 is filled with water, namely, high-pressure water can enter the opening through the middle through hole of the retainer ring 73 and finally enter the pressure balance rubber part 71, and pressure is transferred through the pressure balance rubber part 71.
In a further embodiment, the second sealing element includes an oil sealing element 82 disposed between the lower motor cover 5 of the motor casing 1 and the carbon fiber shielding sleeve 6 for sealing the outer cavity, and the oil sealing element 82 and the carbon fiber shielding sleeve 6 are bonded by glue injection sealing, and after cooling, a second glue injection element 81 is formed between the oil sealing element 82 and the carbon fiber shielding sleeve 6.
Since the first end of the carbon fiber shield 6 has been balanced in the pressure of the inner chamber and the outer chamber by the pressure balancing rubber 71, it is only necessary to connect by a simple oil seal. The specific structure and shape of the oil seal is not limited herein.
It will be understood by those skilled in the art that in practice, the first end and the second end of the carbon fiber shielding sleeve 6 may be provided with the structure of the pressure balancing rubber member 71, and the structure of the first end and the second end of the carbon fiber shielding sleeve 6 may be interchanged and be within the protection range.
The specific structure of the pressure balance rubber part 71 comprises a first side edge, a connecting edge and a second side edge which are connected in sequence, wherein the first side edge, the connecting edge and the second side edge are connected to form a ring-shaped part with an opening, and the cross section of the ring-shaped part is of a U-shaped structure; the core lies in that the first side edge and the second side edge are both elastic bending pieces.
Specifically, this first side, second side and connection limit structure as an organic whole, and be the rubber spare. In practice, the sealing member may be made of silicone or the like. The strength of the pressure-equalizing rubber 71 can be ensured by adopting an integral structure.
Preferably, the sharp corner of the bending part of the first side edge is opposite to the sharp corner of the bending part of the second side edge, and the groove of the curved needle of the first side edge is opposite to the groove of the bending part of the second side edge, so that the first side edge and the second side edge can be synchronously stretched and contracted. Further, the bend of the first side edge and the bend of the second side edge may be arranged in a radially symmetrical configuration with respect to the seal.
In addition, this application still discloses a deep-well pump, including the motor, and is specific, and this motor is the motor disclosed in the above-mentioned embodiment, therefore, the deep-well pump that has this motor also has above-mentioned all technological effects, and the no longer repeated description is repeated herein.
As shown in fig. 2, on the basis of the above technical solution, the present application further includes a cable passage provided on the motor lower cover 5 for connecting a motor cable and a controller cable, and a cable connection assembly for sealing the cable passage.
Wherein the cable sealing assembly includes a motor end connector 97, a controller end connector 91 and a pin 93. The motor end connector 97 is used for connecting a cable of the motor with the motor, namely the motor end connector 97 can be equivalent to a wiring terminal, correspondingly, the controller end connector 91 is used for connecting the cable of the controller electrically, and the controller end connector 91 can be equivalent to a wiring terminal. In order to electrically connect the motor-side connector 97 to the controller-side connector 91, a contact pin 93 is provided, i.e., the electrical connection between the motor-side connector 97 and the controller-side connector 91 is realized by the contact pin 93, i.e., the contact pin 93 corresponds to a conductor.
Because the motor end connector 97, the controller end connector 91 and the contact pin 93 are all solid structures, the connector can be used for plugging a connecting line channel, and liquid can not enter the controller through a connecting line sealing component. In order to ensure the sealing effect, the sealing assembly is required to be hermetically installed in the connecting line channel when being installed and connected so as to avoid liquid leakage between the connecting line channel and the connecting line sealing assembly, further effectively prevent water and impurities from entering the controller and protect the normal use of the controller.
The cable sealing assembly further includes an insulating locking sleeve 96, and the motor end plug 97 is sealingly connected to the wiring channel through the insulating locking sleeve 96. Specifically, the insulating locking sleeve 96 is a plastic cylinder structure, the inner side of the insulating locking sleeve is attached and sealed with the outer surface of the motor end plug connector 97, and the outer side of the insulating locking sleeve is connected with the connecting line channel through threads to realize sealing.
In addition, the cable sealing assembly further includes an insulation bushing 92, and the controller-end plug 91 is sealingly connected to the wiring duct through the insulation bushing 92. The sealing mode between the controller end plug connector 91 and the wiring channel is disclosed, and the insulating bush 92 is simple in structure and easy to assemble. Preferably, the controller end plug 91 may be made of plastic or rubber to achieve insulation.
In a further embodiment, the cable sealing assembly further comprises an elastic sealing member 94, and the elastic sealing member 94 is in close sealing contact with the outer surface of the insertion pin 93, and the elastic sealing member 94 is in close sealing contact with the wiring passage, and further, the elastic sealing member 94 is in sealing connection with the insulation locking sleeve 96 through an insulation gasket 95, and the elastic sealing member 94 is in sealing connection with the insulation bushing 92. Preferably, the elastic sealing member 94 may be a rubber member, i.e., sealing is achieved by pressing the rubber member.
Adopt the laminating sealed in this application, specifically can realize sealedly for interference fit, sealed mode is simple, and is with low costs. Because the thread sealing mode that adopts between insulating lock sleeve 96 and the line passageway, sealed effect is not good, in order to prevent that water and impurity from flowing to the elastic sealing element, consequently, set up insulating gasket 95 between elastic sealing element 94 and insulating lock sleeve 96 to realize sealed through insulating gasket 95, further improve sealed effect.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. An element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A deep well pump motor, comprising:
a motor cartridge, a rotor and a stator disposed within the motor cartridge;
a carbon fiber shielding sleeve;
a first sealing assembly for sealing between a first end of the carbon fiber shielding sleeve and the motor cylinder and a second sealing assembly for sealing between a second end of the carbon fiber shielding sleeve and the motor cylinder, the carbon fiber shielding sleeve dividing the motor cylinder into an inner cavity and an outer cavity by the first sealing assembly and the second sealing assembly, the rotor being located in the inner cavity, the stator being located in the outer cavity, the outer cavity being filled with an insulating fluid;
when entering deep water, the inner cavity is a high-pressure cavity, the outer cavity is a low-pressure cavity, and the first sealing assembly and/or the second sealing assembly can transmit the pressure of the high-pressure cavity to the low-pressure cavity, so that the pressure difference between the inside and the outside of the carbon fiber shielding sleeve is reduced.
2. The electric machine of claim 1, wherein the first seal assembly comprises:
the cover is established the pressure balance rubber spare in the carbon fiber shield cover outside, the pressure balance rubber spare is for having the open-ended extensible member, the opening can with the inner chamber intercommunication, the first side of pressure balance rubber spare with the outside sealing connection of carbon fiber shield cover, the second side of pressure balance rubber spare with motor cylinder sealing connection.
3. The electric machine according to claim 2, wherein the first side edge and the second side edge of the pressure balance rubber member are both bent surfaces.
4. The motor according to claim 3, wherein a bent portion of the first side of the pressure balance rubber member, which is close to the opening, is connected with the carbon fiber shielding sleeve in a sealing manner through glue injection.
5. The motor of claim 3, wherein the motor barrel is provided with a step structure, and the second side edge of the pressure balancing rubber piece close to the bend at the opening is in pressure welding sealing with the step structure through a rubber pressing ring.
6. The motor according to claim 5, wherein the rubber compression ring is an annular seal installed inside the pressure balance rubber member, and a central through hole of the rubber compression ring can communicate the opening with the inside of the pressure balance rubber member.
7. The motor according to claim 6, further comprising a retainer ring sealed between the pressure balance rubber member and a motor upper cover of the motor casing, wherein the retainer ring is press-fitted in the step structure in a sealing manner, and a middle through hole of the retainer ring is capable of communicating with the inner cavity.
8. The electric machine of any of claims 1 to 7, wherein the second seal comprises an annular oil seal disposed between a lower motor cover of the motor casing and the carbon fiber shield sleeve for sealing an outer cavity, the oil seal and the carbon fiber shield sleeve being bonded by a glue injection seal.
9. A deep-well pump comprising an electric motor, characterized in that the electric motor is an electric motor according to any of claims 1-8.
10. The deep well pump of claim 9, wherein the motor further comprises a cable channel for connection of a motor cable and a controller cable, and a cable connection assembly for sealing the cable channel, which is provided on the motor lower cover.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111676111.0A CN114793031A (en) | 2021-12-31 | 2021-12-31 | Deep well pump and motor thereof |
| PCT/CN2022/143033 WO2023125725A1 (en) | 2021-12-31 | 2022-12-28 | Deep-well pump and electric motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111676111.0A CN114793031A (en) | 2021-12-31 | 2021-12-31 | Deep well pump and motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114793031A true CN114793031A (en) | 2022-07-26 |
Family
ID=82460782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111676111.0A Pending CN114793031A (en) | 2021-12-31 | 2021-12-31 | Deep well pump and motor thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114793031A (en) |
| WO (1) | WO2023125725A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125726A1 (en) * | 2021-12-31 | 2023-07-06 | 温岭正峰数字机电科技有限公司 | Electrical machine of deep-well pump and seal thereof |
| WO2023125725A1 (en) * | 2021-12-31 | 2023-07-06 | 温岭正峰数字机电科技有限公司 | Deep-well pump and electric motor thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1002944A (en) * | 1963-07-19 | 1965-09-02 | Mather & Platt Ltd | Improvements in or relating to submersible electric motors |
| CN1146653A (en) * | 1995-09-28 | 1997-04-02 | 陈启星 | Electric motor-pump system of sealing, liquid-filled, external and internal pressure automatic balance of sealing-layer type |
| CN101340117A (en) * | 2007-07-03 | 2009-01-07 | 天津甘泉集团有限公司 | Shielding type oil filling diving generator |
| CN105591485A (en) * | 2014-11-11 | 2016-05-18 | 无锡清杨机械制造有限公司 | Shielding motor |
| CN104682608B (en) * | 2015-03-03 | 2017-05-17 | 青蛙泵业有限公司 | multiple sealing motor for deep well pump |
| CN210985813U (en) * | 2019-12-11 | 2020-07-10 | 海城三鱼泵业有限公司 | Submersible motor pressure regulating device for well |
| CN113691080B (en) * | 2021-08-31 | 2022-09-09 | 苏州优德通力科技有限公司 | Canned type formula of soaking permanent magnetism frequency conversion deep-well pump motor structure |
| CN114793031A (en) * | 2021-12-31 | 2022-07-26 | 温岭正峰数字机电科技有限公司 | Deep well pump and motor thereof |
-
2021
- 2021-12-31 CN CN202111676111.0A patent/CN114793031A/en active Pending
-
2022
- 2022-12-28 WO PCT/CN2022/143033 patent/WO2023125725A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125726A1 (en) * | 2021-12-31 | 2023-07-06 | 温岭正峰数字机电科技有限公司 | Electrical machine of deep-well pump and seal thereof |
| WO2023125725A1 (en) * | 2021-12-31 | 2023-07-06 | 温岭正峰数字机电科技有限公司 | Deep-well pump and electric motor thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023125725A1 (en) | 2023-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114793031A (en) | Deep well pump and motor thereof | |
| US20120291905A1 (en) | Connector for a fluid line and fluid line | |
| EA012386B1 (en) | Device for hydrolically protecting a well pump electric motor | |
| US20160201830A1 (en) | Bead seal and connection device comprising such a seal | |
| US20190242340A1 (en) | Fuel Pump | |
| CN112031971B (en) | High-pressure oil pipe assembly | |
| CN105008659B (en) | Pit shaft transmission equipment | |
| WO2023125726A1 (en) | Electrical machine of deep-well pump and seal thereof | |
| CN205316683U (en) | Prevent joint Assembly of company and water heater of electric wall | |
| CN213298246U (en) | Structure for increasing pre-tightening force of plunger packing assembly of reciprocating pump | |
| CN109654226A (en) | Seal assembly with exciter and sealing element | |
| EP3955404B1 (en) | Sealing structure of cylinder penetrating wire harness | |
| US10132434B2 (en) | Hose coupling assembly for subsea applications | |
| CA2929047A1 (en) | Spring-energized seal for high temperature sealing of power cable to connector | |
| CN210105771U (en) | Through cable drill rod | |
| CN209976584U (en) | Steam turbine shaft seal steam supply adjusting device | |
| CN219393853U (en) | Wellhead traversing device structure | |
| CN207701397U (en) | A kind of minor diameter filling type deep-well electric-pump cable device | |
| CN215335134U (en) | Stainless steel corrugated hose | |
| CN211038570U (en) | Sealing ring for petroleum wellhead and wellhead device | |
| CN218267214U (en) | Ultrahigh pressure-resistant corrosion-resistant sealing element | |
| CN214425329U (en) | Two-end type composite structure sealing connecting pipe | |
| CN216436738U (en) | Casing pipe assembly convenient for wall penetration | |
| CN215568203U (en) | One-way oil pipe joint with good sealing performance | |
| CN218377599U (en) | Sealing structure of protection device for speed reducer of submersible electric screw pump |
Legal Events
| 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 |