CN202157945U - Electrical submersible electric pump protector employing capsule chamber, serial settling chamber and serial settling chamber three-stage sealing - Google Patents
Electrical submersible electric pump protector employing capsule chamber, serial settling chamber and serial settling chamber three-stage sealing Download PDFInfo
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- CN202157945U CN202157945U CN2011202703982U CN201120270398U CN202157945U CN 202157945 U CN202157945 U CN 202157945U CN 2011202703982 U CN2011202703982 U CN 2011202703982U CN 201120270398 U CN201120270398 U CN 201120270398U CN 202157945 U CN202157945 U CN 202157945U
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Abstract
An electrical submersible pump protector employing a capsule chamber, serial settling chamber and serial settling chamber three-stage sealing is characterized by comprising a protector head, an upper capsule chamber, an upper sealing seat, a middle settling chamber, a middle sealing seat, a lower settling chamber, a lower sealing seat, an upper shell body, a middle shell body, a lower shell body, a thrust bearing chamber outer shell, a through shaft and a pre-oil injection base. The electrical submersible pump protector has the advantages that a standard module sealing seat with a single structure is adopted for combination design to form a combined three-stage protected three-chamber structure with the capsule chamber arranged at the upper part and the two independent settling chambers that are arranged at the lower part and respectively play a protecting role; well fluid can be isolated from motor oil, so that a motor is ensured to be insulated and not to be corroded and damaged by the well fluid, and the service life of a unit is prolonged; the safety factors are high; the protector is more suitable for being used in conjunction with the motor with larger breathing capacity; a thrust bearing in the protector has large bearing force; the running cost of the unit is reduced; and the protector has good cost performance and very wide market prospect and can greatly satisfy the demands of foreign and domestic customers.
Description
(1) technical field:
The utility model relates to a kind of petroleum machinery and uses the submersible electric pump protector, particularly a kind of adopt single standard sealing seat module carry out the three-cavity structure submersible electric pump protector of three grades of seal protections that the capsule chamber series connection setting chamber series connection setting chamber of permutation and combination design is combined into by mathematic(al) mode.
(2) background technique:
The submersible electric pump protector is the important component part of oil field oil recovery machiner submersible electric pump system.Therefore it is arranged between deaerator (or suction port) and the oil-submersible motor, and its direct relation the working life of Electric Submersible Pump Unit, is exactly the emphasis that the client pays special attention to when buying Electric Submersible Pump Unit for a long time.
The design concept that the submersible electric pump protector is traditional: component are not interchangeable, and are unique designs.As the submersible electric pump protector of design in the past has communication type structure, decanter type structure, capsule-type structure etc., and the combined protective device of multiple construction module (three to four kinds).The component that the protector of first three different structure adopts all are to carry out narrow spectrum design to a certain structure, and specificity is very strong, does not have versatility and interchangeability.The kind of product structure seldom also just has only several kinds, has satisfied not the present market demand.Must design again if want to change structure, need the long period, increase design cost, more can not adapt to the fast-developing needs that change at any time of current society, tend to miss opportunity of sales, also limit the development of submersible electric pump.Therefore how to change such submersible electric pump protector product specification selectivity, take a lot of work, time-consuming design, the submersible electric pump protector of multiple construction module combined type design has several years ago appearred adopting.Owing to be multiple construction standard module, cause production management comparatively complicated.
(3) model utility content:
The purpose of the utility model is to design the submersible electric pump protector of three grades of sealings of a kind of capsule chamber series connection setting chamber series connection setting chamber; It adopts the single standard module to carry out modular design; It makes the nonstandard design of selectivity of product or the single general standard module design that the multimode design becomes standard; This protector is a kind of practical, and nonpetroleum machinery is used the submersible electric pump protector.
The technological scheme of the utility model: the submersible electric pump protector of three grades of sealings of a kind of capsule chamber series connection setting chamber series connection setting chamber is characterized in that it comprises protector head, top capsule chamber, top seal seat, middle part setting chamber, middle part sealing seat, bottom setting chamber, lower seal seat, upper shell, middle shell, lower shell body, thrust bearing chamber enclosure, axis and preparatory oiling base; Said protector head protects central siphon according to protector top capsule and is connected with last capsule chamber input end; Said top capsule chamber output terminal is connected with protector top seal seat upper end according to the middle part mechanical sealing element; Said protector top seal seat lower end is protected central siphon according to the middle part sedimentation and is connected with middle part setting chamber input end; Said middle part setting chamber output terminal is connected with middle part sealing seat upper end according to the bottom mechanical sealing element; Sealing seat lower end, said middle part is protected central siphon according to the bottom sedimentation and is connected with bottom setting chamber input end; Said bottom setting chamber output terminal is connected with lower seal seat upper end; Said lower seal seat lower end is paid preparatory oiling base upper end according to thrust bearing and is connected; There is fuel feeding valve to reach and the joining flange of motor on the said preparatory oiling base; Said axis places the center of top capsule chamber, middle part setting chamber, bottom setting chamber, top seal seat, middle part sealing seat, lower seal seat; Said upper shell, middle shell, lower shell body and thrust bearing chamber enclosure are installed on the shell of the outside constituent apparatus of device successively.
Make the joining screw in protector head top and separator or intake flange, top mechanical sealing element, top inner chamber exhaust port, top exocoel exhaust port and top spiracle on the said protector head; The inner top mechanical seal of said protector head places the following position of spline of the upper end portion of the axis in the protector head; Said top inner chamber exhaust port is connected with protector head lower end surface according to the hole I that lets droop; Said top spiracle lower port connects the short tube under shed; I hole lower port connects the one-way valve of protector head in the said protector head.
Exocoel exhaust port, lumen exocoel exhaust port and lumen spiracle in middle part mechanical sealing element, epicoele taphole, the lumen are arranged on the said top seal seat; Said epicoele taphole is connected with top seal seat upper-end surface according to the inclined hole I that makes progress; The exocoel exhaust port is connected with top seal seat lower end surface according to the hole II that lets droop in the said lumen; Said lumen spiracle lower end mouth connects to the middle part expansion pipe that extends below.
Exocoel exhaust port, cavity of resorption exocoel exhaust port and cavity of resorption spiracle in bottom mechanical sealing element, lumen taphole, the cavity of resorption are arranged on the sealing seat of said middle part; Said lumen taphole is connected with sealing seat upper-end surface, middle part according to the inclined hole II that makes progress; The exocoel exhaust port is connected with sealing seat lower end surface, middle part according to the hole III that lets droop in the said cavity of resorption; Said cavity of resorption spiracle lower port connects to the bottom expansion pipe that extends below.
Exocoel exhaust port in cavity of resorption taphole, the bottom, bottom exocoel exhaust port and bottom spiracle are arranged on the said lower seal seat; Said cavity of resorption taphole is connected with lower seal seat upper-end surface according to the inclined hole III that makes progress; The exocoel exhaust port is connected with lower seal seat lower end surface according to the hole IV that lets droop in said.
Thrust shaft in the said protector is undertaken the high-mechanic thrust bearing is housed.
The space that said top capsule chamber inner chamber is made up of capsule seat upper-end surface under capsule seat lower end surface and the top capsule on the cylindrical round in the capsule of top, that the top capsule protects central siphon, the top capsule; The space that said top capsule chamber exocoel is made up of circle in top capsule cylindrical and the upper shell.
Said middle part setting chamber is protected the space of being formed between the upper, annular end face of the cylindrical of central siphon, the interior circle of middle shell, the lower end surface of top seal seat, the upper-end surface of playing the capsule seat and middle part sealing seat by the middle part sedimentation.
Said bottom setting chamber is protected the space of being formed between the upper, annular end face of the cylindrical of central siphon, the interior circle of lower case, the lower end surface of middle part sealing seat, the upper-end surface of playing the capsule seat and lower seal seat by the bottom sedimentation.
Said top seal seat, middle part sealing seat and lower seal seat are single structure standard module sealing seat.
Each item structure function and the working principle of the utility model protector are: protector is a sealing system of motor; The protection dynamo oil is not polluted by well liquid; Protect motor stator insulated not being destroyed; And be the axial thrust system of submersible electric pump, underground crude oil given rise to ground through centrifugal pump.
The all prerequisite function of the protector of any structure form is: the protection dynamo oil is not polluted it by well liquid, guarantee motor stator insulated not being destroyed; The pressure of equilibrium oil casing annular space and motor internal makes it reach balance, guarantees that electric pump runs well; The end thrust that the inner thrust bearing of protector is used for carrying pump guarantees normally lifting crude oil of electric pump; Protector is the bridge that connects between motor and the pump, comes transmitting torque with it; Protector can provide lubricant oil for oil-submersible motor automatically at any time.
The structure characteristic of this protector is: setting capsule-type structure at an upper portion thereof is the top capsule chamber just; Be arranged on the center middle part setting chamber and bottom two of bottom setting chambers independently; Be taken up in order of priority the two sedimentation structures that shield just in, bottom setting chamber, be fused to form in the protector combined type three-stage protective system (annotate: the top protective seal that is arranged on top mechanical sealing element in the topmost part protector head and is the top capsule chamber is first order axle envelope just; The middle part mechanical sealing element that is arranged on the top seal seat top of capsule chamber bottom is the top protective seal second level shaft sealing just of middle part setting chamber; The bottom mechanical sealing element that is arranged on sealing seat top, middle part, setting chamber bottom, middle part is the top protective seal third level shaft sealing just of bottom setting chamber.) the three-cavity structure protector, give full play to their protection specialities separately.Be arranged on top the top capsule chamber it between dynamo oil and well liquid, formed resilient separation layer because its adjusting protective action makes motor the expanding with heat and contract with cold to change and can not cause well liquid to get into next stage middle part setting chamber of dynamo oil in operation and when shutting down; In case the top capsule chamber lost efficacy, well liquid just gets into the annular space below the lower nozzle of the middle part expansion pipe that extends below in the setting chamber of middle part along the passage that designs for it; At this moment the middle part setting chamber utilize the proportion difference principle of dynamo oil and well liquid to carry out work (top of middle part setting chamber is provided with the second level middle part heavy well liquid of mechanical sealing element and sinks to the bottom, and the dynamo oil that proportion is little floats over the protective action that well liquid top continues to play the breathing balance like this.Well liquid just got into third level protective system bottom setting chamber along the passage that designs for it in advance when the middle part setting chamber loses efficacy.Because also being (top of bottom setting chamber is provided with the bottom mechanical sealing element) according to the proportion difference principle design of dynamo oil and well liquid, the structure of bottom setting chamber guaranteed that the heavy well liquid that gets into the bottom setting chamber also can only be in the interior bottom expansion pipe of setting chamber to the below of lower opening annular space; The dynamo oil that proportion is little float over well liquid above; Because top is hopeless; The well liquid that sinks to the bottom so also just can not protect the motor that the radial aperture on central siphon top gets into the bottom through being arranged on sedimentation; The turbidity test and the insulating property of dynamo oil have been protected once more; The path that provides dynamo oil to expand with heat and contract with cold has simultaneously not only guaranteed sealing but also can make the external and internal pressure of motor reach balance.
The superiority of the utility model is: (1) the utility model has changed the theory of component structural selectivity design in the past or multimode design; Only adopt the single standard module to carry out modular design; This protector has adopted the standard module sealing seat with a kind of structure; Be used for 3 different parts; Add that protector head, axle, mechanical sealing element, capsule, housing, thrust shaft are undertaken, main parts size such as oiling base is carried out modular design in advance, consists of the independent capsule chamber in top, two setting chambers that independently shield respectively in middle and lower part are combined into the three-cavity structure protector of three-level protective; (2) overall structure protection usefulness is good, can fully well liquid and dynamo oil be kept apart, and has guaranteed that electrical machine insulation not by well liquid erosion damage, has prolonged the working life of unit; (3) the single standard module combinations is easy to use, convenient management, and the protector protection effect of composition is more effective, and safety coefficient is high; (4), thereby make it be more suitable for using with electric drilling match with big respiratory capacity because the combined type protector can adopt the unit independent assortment of a plurality of different structures to use; (5) the thrust bearing bearing capacity in the protector is big; (6) this protector is the three-level protective system, and three chamber combined structure long service life have reduced the unit operation cost; Make our company's Electric Submersible Pump Unit have good cost performance; Product has good competitive ability on market, prospect is boundless, can satisfy domestic and international client's demand greatly.
(4) description of drawings:
Accompanying drawing is the submersible electric pump protector overall structure schematic representation of three grades of sealings of the related capsule chamber series connection of the utility model setting chamber series connection setting chamber.
Wherein: A is the top capsule chamber, and B is the middle part setting chamber, and C is the bottom setting chamber, and 1 is the protector head, and 1a is a screw, and 2 is axis; 3 is the top mechanical sealing element, and 4 is top inner chamber exhaust port, and 4a is the hole I that hangs down, and 5 is top exocoel exhaust port, and 6 is the top spiracle, and 7 is one-way valve; 8 is short tube, and 9 for the top capsule protects central siphon, and 10 is upper shell, and 11 is the middle part mechanical sealing element, and 12 are the top seal seat, and 13 is the epicoele taphole; 13a is inclined hole I, and 14 is exocoel exhaust port in the lumen, and 14a is the hole II that hangs down, and 15 is lumen exocoel exhaust port, and 16 is the lumen spiracle, and 17 is the middle part expansion pipe; 18 protect central siphon for the middle part sedimentation, and 19 is middle shell, and 20 is the bottom mechanical sealing element, and 21 is the middle part sealing seat, and 22 is the lumen taphole; 22a is inclined hole II, and 23 is exocoel exhaust port in the cavity of resorption, the 23a hole III that hangs down, and 24 is cavity of resorption exocoel exhaust port, 25 is the cavity of resorption spiracle; 26 is the bottom expansion pipe, and 27 protect central siphon for the bottom sedimentation, and 28 is lower shell body, and 29 is the lower seal seat, and 30 is the cavity of resorption taphole; 30a inclined hole III, 31 is exocoel exhaust port in the bottom, the 31a hole IV that hangs down, 32 is bottom exocoel exhaust port, 33 is the bottom spiracle; 34 is the thrust bearing chamber enclosure, and 35 pay for thrust bearing, and 36 is preparatory oiling base, and 37 is fuel feeding valve, and 38 is flange.
(5) embodiment:
Embodiment: the submersible electric pump protector (seeing accompanying drawing) of three grades of sealings of a kind of capsule chamber series connection setting chamber series connection setting chamber is characterized in that it comprises protector head 1, top capsule chamber A, top seal seat 12, middle part setting chamber B, middle part sealing seat 21, bottom setting chamber C, lower seal seat 29, upper shell 10, middle shell 19, lower shell body 28, thrust bearing chamber enclosure 34, axis 2 and preparatory oiling base 36; Said protector head 1 protects central siphon 9 according to protector top capsule and is connected with last capsule chamber A input end; Said top capsule chamber A output terminal is connected with protector top seal seat 12 upper ends according to middle part mechanical sealing element 11; Said protector top seal seat 12 lower ends are protected central siphon 18 according to the middle part sedimentation and are connected with middle part setting chamber B input end; Said middle part setting chamber B output terminal is connected with middle part sealing seat 21 upper ends according to bottom mechanical sealing element 20; Sealing seat 21 lower ends, said middle part are protected central siphon 27 according to the bottom sedimentation and are connected with bottom setting chamber C input end; Said bottom setting chamber C output terminal is connected with lower seal seat 29 upper ends; Said lower seal seat 29 lower ends are undertaken 35 according to thrust shaft and are connected with preparatory oiling base 36 upper ends; There is fuel feeding valve 37 to reach and the joining flange 38 of motor on the said preparatory oiling base 36; Said axis 2 places the center of top capsule chamber A, middle part setting chamber B, bottom setting chamber C, top seal seat 12, middle part sealing seat 21, lower seal seat 29; Said upper shell 10, middle shell 19, lower shell body 28 and thrust bearing chamber enclosure 34 are installed on the shell of the outside constituent apparatus of device successively.
Make the joining screw 1a in protector head top and separator or intake flange, top mechanical sealing element 3, top inner chamber exhaust port 4, top exocoel exhaust port 5 and top spiracle 6 on the said protector head 1; Said protector head 1 inner top mechanical seal 3 places the following position of spline of the upper end portion of the axis 2 in the protector head; Said top inner chamber exhaust port 4 is connected with protector head 1 lower end surface according to the hole I 4a that lets droop; Said top spiracle 6 lower port connect the short tube 8 under shed; I 4a hole lower port connects the one-way valve 7 of protector head in the said protector head 1.(seeing accompanying drawing)
Exocoel exhaust port 14, lumen exocoel exhaust port 15 and lumen spiracle 16 in middle part mechanical sealing element 11, epicoele taphole 13, the lumen are arranged on the said top seal seat 12; Said epicoele taphole 13 is connected with top seal seat 12 upper-end surfaces according to the inclined hole I 13a that makes progress; Exocoel exhaust port 14 is connected with top seal seat 12 lower end surfaces according to the hole II 14a that lets droop in the said lumen; Said lumen spiracle 16 lower end mouth connect to the middle part expansion pipe 17 that extends below.(seeing accompanying drawing)
Exocoel exhaust port 23, cavity of resorption exocoel exhaust port 24 and cavity of resorption spiracle 25 in bottom mechanical sealing element 20, lumen taphole 22, the cavity of resorption are arranged on the said middle part sealing seat 21; Said lumen taphole 22 is connected with middle part sealing seat 21 upper-end surfaces according to the inclined hole II 22a that makes progress; Exocoel exhaust port 23 is connected with middle part sealing seat 21 lower end surfaces according to the hole III 23a that lets droop in the said cavity of resorption; Said cavity of resorption spiracle 25 lower port connect to the bottom expansion pipe 26 that extends below.(seeing accompanying drawing)
Exocoel exhaust port 31 in cavity of resorption taphole 30, the bottom, bottom exocoel exhaust port 32 and bottom spiracle 33 are arranged on the said lower seal seat 29; Said cavity of resorption taphole 30 is connected with lower seal seat 29 upper-end surfaces according to the inclined hole III 30a that makes progress; Exocoel exhaust port 31 is connected with lower seal seat 29 lower end surfaces according to the hole IV 31a that lets droop in said.(seeing accompanying drawing)
Thrust shaft in the said protector is undertaken 35 the high-mechanic thrust bearing is housed.
The space that said top capsule chamber A inner chamber is made up of capsule seat upper-end surface under capsule seat lower end surface and the top capsule on the cylindrical round in the capsule of top, that the top capsule protects central siphon 9, the top capsule; The space that said top capsule chamber A exocoel is made up of circle in top capsule cylindrical and the upper shell 10.(seeing accompanying drawing)
Said middle part setting chamber B is protected the space of being formed between the upper, annular end face of the cylindrical of central siphon 18, the interior circle of middle shell 19, the lower end surface of top seal seat 12, the upper-end surface of playing the capsule seat and middle part sealing seat 21 by the middle part sedimentation.(seeing accompanying drawing)
Said bottom setting chamber C is protected the space of being formed between the upper, annular end face of the cylindrical of central siphon 27, the interior circle of lower case 28, the lower end surface of middle part sealing seat 21, the upper-end surface of playing the capsule seat and lower seal seat 29 by the bottom sedimentation.(seeing accompanying drawing)
Said top seal seat 12, middle part sealing seat 21 and lower seal seat 29 are single structure standard module sealing seat (seeing accompanying drawing).
Claims (10)
1. the submersible electric pump protector of three grades of sealings of a capsule chamber series connection setting chamber series connection setting chamber is characterized in that it comprises protector head, top capsule chamber, top seal seat, middle part setting chamber, middle part sealing seat, bottom setting chamber, lower seal seat, upper shell, middle shell, lower shell body, thrust bearing chamber enclosure, axis and preparatory oiling base; Said protector head protects central siphon according to protector top capsule and is connected with last capsule chamber input end; Said top capsule chamber output terminal is connected with protector top seal seat upper end according to the middle part mechanical sealing element; Said protector top seal seat lower end is protected central siphon according to the middle part sedimentation and is connected with middle part setting chamber input end; Said middle part setting chamber output terminal is connected with middle part sealing seat upper end according to the bottom mechanical sealing element; Sealing seat lower end, said middle part is protected central siphon according to the bottom sedimentation and is connected with bottom setting chamber input end; Said bottom setting chamber output terminal is connected with lower seal seat upper end; Said lower seal seat lower end is paid preparatory oiling base upper end according to thrust bearing and is connected; There is fuel feeding valve to reach and the joining flange of motor on the said preparatory oiling base; Said axis places the center of top capsule chamber, middle part setting chamber, bottom setting chamber, top seal seat, middle part sealing seat, lower seal seat; Said upper shell, middle shell, lower shell body and thrust bearing chamber enclosure are installed on the shell of the outside constituent apparatus of device successively.
2. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection setting chamber series connection setting chamber of claim 1, it is characterized in that making on the said protector head the joining screw in protector head top and separator or intake flange, top mechanical sealing element, top inner chamber exhaust port, top exocoel exhaust port and top spiracle; The inner top mechanical seal of said protector head places the following position of spline of the upper end portion of the axis in the protector head; Said top inner chamber exhaust port is connected with protector head lower end surface according to the hole I that lets droop; Said top spiracle lower port connects the short tube under shed; I hole lower port connects the one-way valve of protector head in the said protector head.
3. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection setting chamber series connection setting chamber of claim 1, it is characterized in that having on the said top seal seat exocoel exhaust port, lumen exocoel exhaust port and lumen spiracle in middle part mechanical sealing element, epicoele taphole, the lumen; Said epicoele taphole is connected with top seal seat upper-end surface according to the inclined hole I that makes progress; The exocoel exhaust port is connected with top seal seat lower end surface according to the hole II that lets droop in the said lumen; Said lumen spiracle lower end mouth connects to the middle part expansion pipe that extends below.
4. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection of claim 1 setting chamber series connection setting chamber, it is characterized in that the bottom mechanical sealing element is arranged on the sealing seat of said middle part, exocoel exhaust port, cavity of resorption exocoel exhaust port and cavity of resorption spiracle in the lumen taphole, cavity of resorption; Said lumen taphole is connected with sealing seat upper-end surface, middle part according to the inclined hole II that makes progress; The exocoel exhaust port is connected with sealing seat lower end surface, middle part according to the hole III that lets droop in the said cavity of resorption; Said cavity of resorption spiracle lower port connects to the bottom expansion pipe that extends below.
5. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection setting chamber series connection setting chamber of claim 1, it is characterized in that exocoel exhaust port in cavity of resorption taphole, the bottom, bottom exocoel exhaust port and bottom spiracle are arranged on the said lower seal seat; Said cavity of resorption taphole is connected with lower seal seat upper-end surface according to the inclined hole III that makes progress; The exocoel exhaust port is connected with lower seal seat lower end surface according to the hole IV that lets droop in said.
6. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection of claim 1 setting chamber series connection setting chamber, it is characterized in that thrust shaft in the said protector is undertaken the high-mechanic thrust bearing is housed.
7. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection setting chamber series connection setting chamber of claim 1, it is characterized in that the space that said top capsule chamber inner chamber is made up of capsule seat upper-end surface under capsule seat lower end surface and the top capsule on the cylindrical round in the capsule of top, that the top capsule protects central siphon, the top capsule; The space that said top capsule chamber exocoel is made up of circle in top capsule cylindrical and the upper shell.
8. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection setting chamber series connection setting chamber of claim 1, it is characterized in that said middle part setting chamber is protected the space of being formed between the upper, annular end face of the cylindrical of central siphon, the interior circle of middle shell, the lower end surface of top seal seat, the upper-end surface of playing the capsule seat and middle part sealing seat by the middle part sedimentation.
9. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection setting chamber series connection setting chamber of claim 1, it is characterized in that said bottom setting chamber is protected the space of being formed between the upper, annular end face of the cylindrical of central siphon, the interior circle of lower case, the lower end surface of middle part sealing seat, the upper-end surface of playing the capsule seat and lower seal seat by the bottom sedimentation.
10. according to the submersible electric pump protector of three grades of sealings of the said a kind of capsule chamber series connection setting chamber series connection setting chamber of claim 1, it is characterized in that said top seal seat, middle part sealing seat and lower seal seat are single structure standard module sealing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202703982U CN202157945U (en) | 2011-07-28 | 2011-07-28 | Electrical submersible electric pump protector employing capsule chamber, serial settling chamber and serial settling chamber three-stage sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202703982U CN202157945U (en) | 2011-07-28 | 2011-07-28 | Electrical submersible electric pump protector employing capsule chamber, serial settling chamber and serial settling chamber three-stage sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157945U true CN202157945U (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202703982U Expired - Lifetime CN202157945U (en) | 2011-07-28 | 2011-07-28 | Electrical submersible electric pump protector employing capsule chamber, serial settling chamber and serial settling chamber three-stage sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156340A (en) * | 2015-08-20 | 2015-12-16 | 天津市百成油田采油设备制造有限公司 | Inverse water-injection electric submersible pump system |
-
2011
- 2011-07-28 CN CN2011202703982U patent/CN202157945U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156340A (en) * | 2015-08-20 | 2015-12-16 | 天津市百成油田采油设备制造有限公司 | Inverse water-injection electric submersible pump system |
| CN105156340B (en) * | 2015-08-20 | 2018-08-21 | 天津市百成油田采油设备制造有限公司 | A kind of inversion injecting submersible pump system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |
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| CX01 | Expiry of patent term |