CN201090494Y - Oiling-free type oil-submersible electric motor protector - Google Patents
Oiling-free type oil-submersible electric motor protector Download PDFInfo
- Publication number
- CN201090494Y CN201090494Y CNU2007201291368U CN200720129136U CN201090494Y CN 201090494 Y CN201090494 Y CN 201090494Y CN U2007201291368 U CNU2007201291368 U CN U2007201291368U CN 200720129136 U CN200720129136 U CN 200720129136U CN 201090494 Y CN201090494 Y CN 201090494Y
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- oil
- protector
- motor
- submersible motor
- valve system
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses an oil-injection-free oil-submersible motor protector with the cavity controlled to be on and off. The protector comprises a lower connector (1) positioned at the lower part of the protector and connected with the oil-submersible motor; the lower connector (1) is matched in a seal state with the motor head of the oil-submersible motor; a cavity (6) is arranged in the solid part of the lower connector (1), a valve system is arranged in the cavity (6) and a device for controlling the valve system to be on and off is arranged at the corresponding position on the side wall of the lower connector (1). The motor oil in the cavity (6) before the protector is connected with the oil-submersible motor is isolated from the outside environment, therefore the motor oil is kept clean; then the valve system is opened and the motor oil in the cavity (6) is injected into the motor, therefore the on-spot oil injection procedure is removed. In addition, the open-close control structure of the protector cavity is simple, ensuring convenient the on-spot connection operation.
Description
Technical field:
The utility model relates to the motor protecter of the Electric Submersible Pump Unit of using in a kind of field of petroleum exploitation.
Background technique:
Along with the deep exploitation in each oil field both at home and abroad, increase as the oil field and to adopt the submersible electric pump that increases income one of capital equipment, increasing in the oilfield application amount.The submersible electric pump protector directly is connected with motor shaft, the pump shaft (or decoupler shaft) of oil-submersible motor, and be connected with pump case (or shell separator) with electric machine casing, plays the effect of protection motor.This effect has determined that the basic structure of protector is is main purpose to isolate dynamo oil and well liquid; motor is not only moved in oil well can have enough dynamo oils to provide lubricated; and when shutdown turns cold; protector can replenish not enough dynamo oil for motor, prevents that well liquid from entering motor.The useful capsule of the means of isolating is isolated, is isolated according to the different isolation of relative density of two kinds of liquid with heavy oil.At present the structure of Electric Submersible Pump Unit motor protecter is that protector inner chamber and oil-submersible motor connecting end are in open state all the time, and this structural feature has determined the Electric Submersible Pump Unit motor protecter to carry out oiling at the scene during operation.Because oil-submersible motor protector internal structure complexity; the oil circuit of dynamo oil is all smaller; for guaranteeing fully to fill with dynamo oil in motor and the protector; the speed of on-the-spot oiling is all slow; it generally is 8～15 rev/mins; this just makes that the oiling time is long, and the single-unit protector oiling time was generally 1～2 hour, and the protector oiling time generally accounts for about 35% of the whole unit installation time.When constructing in the winter time, because the ground environment temperature is lower, the motor oil viscosity is bigger, and the oiling time will be longer, and whole oiling interlude needs the site operation personnel to finish by manual operations, and the rugged environment of erecting bed are brought a lot of difficulties to operator.Because site environment and artificial factor, the oil product of Zhu Ruing might be polluted at the scene, and this directly influences the service life of Electric Submersible Pump Unit.And, by present oiling technology, in the oiling process, will inevitably cause overflowing and splashing of dynamo oil, also can pollute the physical environment at scene.
The model utility content:
Technical problem to be solved in the utility model is in order to overcome the deficiency in the background technique; provide a kind of protector inner chamber can realize the oil-submersible motor protector of opening and closing control; the dynamo oil and the external world that this protector is connected with oil-submersible motor in the front interior cavity are in state of isolation; the cleaning that has kept dynamo oil, the program of having exempted on-the-spot oiling.The inner chamber opening and closing control structure of this protector is simple in addition, and is easy to operate when connecting at the scene.
For achieving the above object; technical solution of the present utility model is: exempt from oil-filling type oil-submersible motor protector and comprise and be positioned at the lower contact that the protector lower end is connected with oil-submersible motor; it is characterized in that: the motor head of lower contact and oil-submersible motor is sealed and matched; entity part in lower contact has inner chamber; in this inner chamber, valve system is installed, and is provided with the device of control valve system folding in lower contact sidewall corresponding position.
The motor head of described lower contact and oil-submersible motor is sealed and matched, and the sealing means that is adopted is lip seal.
Described valve system of exempting from oil-filling type oil-submersible motor protector is made up of cone-shaped plunger and spring.
The device of described control valve system closure is to have the hole that communicates with inner chamber with corresponding position, cone-shaped plunger position on the lower contact sidewall, seals mounting screw on the position in this hole.
Technique effect of the present utility model is: before unit transports the scene to dynamo oil is filled with in protector inside, when promptly not being connected with motor as yet, valve system is closed, and under the acting in conjunction of valve system and lip seal, the protector inner chamber is in sealing state; In the unit transportation process, the dynamo oil and the external world in the protector are in state of isolation, have kept the cleaning of dynamo oil; The unit installation of going into the well is carried out at the scene of reaching, when protector be connected with motor finish after, the open valve system, protector inner chamber and motor cavity are in connected state, at this moment protector inside is full of dynamo oil, need not on-the-spot oiling, this exempts from the secondary pollution that oil-filling type oil-submersible motor protector can be avoided oil product in a word, on-the-spot physical environment is to the influence of oil product in the elimination installation process, exempted the protector filling procedure of Electric Submersible Pump Unit in the installation process of going into the well, shorten about 1～2 hour operating time, improved working efficiency;
Description of drawings:
Fig. 1 is the structural representation that the utility model is exempted from oil-filling type oil-submersible motor protector lower contact part.
Inner chamber-6 in lower contact among the figure-1, lip packing-2, cone-shaped plunger-3, spring-4, screw-5, the lower contact
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
The basic structure of conventional oil-submersible motor protector can be divided into: precipitating type protector, capsule-type protector, communication type protector.Different with requirement according to geological condition, the structure of protector also can become by independent assortment: combined type protectors such as precipitation combines with capsule, two precipitation, double-capsule.One common means is arranged, i.e. the lower contact that is connected with oil-submersible motor motor head in the structure of these protectors.
By shown in Figure 1, this exempts from the lower contact (1) of oil-filling type oil-submersible motor protector and the motor head of oil-submersible motor is sealed and matched, as adopting the form of lip seal (2); Entity part in lower contact has inner chamber (6), in this inner chamber (6), valve system is installed, this valve system is made up of cone-shaped plunger (3) and spring (4), and cone-shaped plunger (3) can move up and down the folding that realizes internal oil passages under the pressure effect of spring (4); The sealing of protector inner chamber (6) is to be finished by valve system and lip-type seal in the lower contact (1); On lower contact (1) sidewall, have the hole that communicates with inner chamber (6) with cone-shaped plunger (3) corresponding position, position, mounting screw on the position in this hole (5), screw (5) seals by lead pad, realizes the folding of valve system by the length of transposing screw.
Before oil-submersible motor mails to the scene, under the condition of environmental requirement may command (temperature, humidity, oil product etc.), protector is filled with qualified dynamo oil, use the hole sealing of short screw (5) with the protector valve system outside, carry out sealing.
When protector inside was filled with dynamo oil and is not connected with motor as yet, as in the unit transportation process, valve system was closed, and under the acting in conjunction of valve system and lip seal, protector inner chamber (6) is in sealing state; The dynamo oil and the external world in the protector are in state of isolation, have kept the cleaning of dynamo oil.
The unit installation of going into the well is carried out at the scene of reaching; motor be connected with protector finish after; the transposing of short screw on the protector is long spiro nail; the open valve system; protector inner chamber (6) is in connected state with motor cavity, and installation tightens, and can finish the installation of whole protecting device; at this moment protector inside is full of dynamo oil, need not on-the-spot oiling.
Exempt from the big parts of oil-filling type oil-submersible motor protector, existing on-the-spot and use in the Daqing oil field input as Electric Submersible Pump Unit.
Claims (4)
1. exempt from oil-filling type oil-submersible motor protector for one kind; comprise the lower contact (1) that is positioned at the protector lower end and is connected with oil-submersible motor; it is characterized in that: lower contact (1) is sealed and matched with the motor head of oil-submersible motor; entity part in lower contact (1) has inner chamber (6); in this inner chamber (6), valve system is installed, and is provided with the device of control valve system folding in lower contact (1) sidewall corresponding position.
2. according to the described oil-filling type oil-submersible motor protector of exempting from of claim 1, it is characterized in that: described lower contact (1) is lip seal with the motor head sealing means of oil-submersible motor.
3. according to the described oil-filling type oil-submersible motor protector of exempting from of claim 1, it is characterized in that: described valve system is made up of cone-shaped plunger (3) and spring (4).
4. according to claim 1 or the 3 described oil-filling type oil-submersible motor protectors of exempting from; it is characterized in that: the device of described control valve system folding is to have the hole that communicates with inner chamber (6) with cone-shaped plunger (3) corresponding position, position on lower contact (1) sidewall, seals mounting screw (5) on the position in this hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201291368U CN201090494Y (en) | 2007-08-17 | 2007-08-17 | Oiling-free type oil-submersible electric motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201291368U CN201090494Y (en) | 2007-08-17 | 2007-08-17 | Oiling-free type oil-submersible electric motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090494Y true CN201090494Y (en) | 2008-07-23 |
Family
ID=39862255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201291368U Expired - Fee Related CN201090494Y (en) | 2007-08-17 | 2007-08-17 | Oiling-free type oil-submersible electric motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090494Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165135A (en) * | 2014-07-08 | 2014-11-26 | 中国石油天然气集团公司 | Electric submersible pump sensor oiling-free quick connecting device |
| CN104135107B (en) * | 2014-07-08 | 2016-08-24 | 中国石油天然气集团公司 | Self-action exempts from oiling submersible electric machine with oil |
| CN110081015A (en) * | 2019-06-12 | 2019-08-02 | 中国石油天然气股份有限公司辽河油田分公司 | A kind of mechanical seal protective device |
-
2007
- 2007-08-17 CN CNU2007201291368U patent/CN201090494Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165135A (en) * | 2014-07-08 | 2014-11-26 | 中国石油天然气集团公司 | Electric submersible pump sensor oiling-free quick connecting device |
| CN104165135B (en) * | 2014-07-08 | 2016-03-09 | 中国石油天然气集团公司 | Oiling Quick Connect Kit exempted from by submersible electric pump sensor |
| CN104135107B (en) * | 2014-07-08 | 2016-08-24 | 中国石油天然气集团公司 | Self-action exempts from oiling submersible electric machine with oil |
| CN110081015A (en) * | 2019-06-12 | 2019-08-02 | 中国石油天然气股份有限公司辽河油田分公司 | A kind of mechanical seal protective device |
| CN110081015B (en) * | 2019-06-12 | 2024-05-10 | 中国石油天然气股份有限公司辽河油田分公司 | Mechanical seal protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DAQING OIL FIELD LISHEN PUMP INDUSTRY( TAICANG ) C Free format text: FORMER OWNER: DAQING OIL FIELD LISHEN PUMP INDUSTRY CO., LTD. Effective date: 20091218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091218 Address after: Chang Sheng Taicang Province, Jiangsu City No. 6, zip code: 215400 Patentee after: Daqing Oilfield Lishen Pumping (Taicang) Co., Ltd. Address before: Heilongjiang province Daqing Ranghulu District No. 263 South Central Street, zip code: 163453 Patentee before: Daqing Oilfield Lishen Pump Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20160817 |