CN103821689A - Portable electric submersible pump oil filling device and method - Google Patents
Portable electric submersible pump oil filling device and method Download PDFInfo
- Publication number
- CN103821689A CN103821689A CN201410096808.4A CN201410096808A CN103821689A CN 103821689 A CN103821689 A CN 103821689A CN 201410096808 A CN201410096808 A CN 201410096808A CN 103821689 A CN103821689 A CN 103821689A
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- pump
- fuel tank
- oil
- direct current
- current motor
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002828 fuel tank Substances 0.000 claims description 47
- 230000001012 protector Effects 0.000 claims description 22
- 239000000446 fuel Substances 0.000 claims description 11
- 230000011664 signaling Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 54
- 239000007789 gas Substances 0.000 description 9
- 238000005086 pumping Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002775 capsule Substances 0.000 description 3
- 230000003190 augmentative effect Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
The invention provides a portable electric submersible pump oil filling device and method. The device comprises an oil tank, an oil filling pump, a controller and a direct current motor. The direct current motor is connected with the oil filling pump. The nominal voltage of the direct current motor is equal to or lower than 24V. The controller comprises a PWM speed regulation module, and the PWM speed regulation module is connected with a power input interface of the direct current motor. Because the speed of the direct current motor is regulated by the controller in the PWM speed regulation mode, the starting torque of the direct current motor is large, and the speed regulation performance is better. Because the rotation speed of the direct current motor is controlled in the PWM speed regulation mode, the rotation speed is more uniform, the oil filling speed of the oil filling pump is more uniform, and thus gas remaining caused by nonuniform oil filling speed is avoided. Because the nominal voltage of the direct current motor is equal to lower than the safety voltage of 24V, the safety degree of on-site operation is improved.
Description
Technical field
The present invention relates to oiling device and correction oil injection method, is a kind of portable submersible electric pump oiling device and correction oil injection method concretely.
Background technique
The large discharge capacity of submersible electric pump is adopted liquid, simple to operate, and convenient management, the phase of being excused from a college course be long, easily process corrosion and wax deposition, can apply to preferably the advantage of inclined shaft, horizontal well and offshore oil production, obtained in recent ten years application very widely at home and abroad.Submersible electric pump comprises: the parts such as oil-submersible motor, protector, oil-immersed pump, oil-submersible cable.Oil-submersible motor is arranged on down-hole, and electric energy flows to oil-submersible motor by oil-submersible cable protector, and oil-submersible motor drives oil-immersed pump running that well liquid is lifted to ground.In the chamber of oil-submersible motor, be marked with dynamo oil, play insulation, lubricated and conductive force, protector is arranged on the top of oil-submersible motor, plays the effect of protection motor.In protector, be provided with contraction capsule, be communicated with the dynamo oil of oil-submersible motor; When unit is gone into the well, because downhole temperature wants high compared with ground, dynamo oil is expanded, it is temporary that volume augmenting portion has entered capsule; After electric motor starting, temperature continues to raise, and Yin Wendu raises and the volume augmenting portion of the dynamo oil that causes is also kept in by capsule; When shutting down or rising to ground, protector can discharge again temporary dynamo oil.When protector and oil-submersible motor are not gone into the well, divide and be arranged, facing goes into the well connects before, and for it is normally worked, before going into the well, protector need to fill oil in advance; Oil-submersible motor, through transporting for a long time or deposit and sampling, also needs to carry out repairing in cavity simultaneously.
Oiling operation to protector and oil-submersible motor mainly realizes by filling pump, and at present the oiling mode of Oil Field is mainly that fuel tank, filling pump are linked together by pipeline temporarily, to oiling in protector and oil-submersible motor; Current on-the-spot filling pump power source is that shaking type or 220V AC asynchronous motor drive filling pump.Adopt manual oiling mode or the oiling of 220V AC asynchronous motor, because the rotating speed of pump is inhomogeneous, thereby cause in oiling process oil injecting speed inhomogeneous, and then make motor and protector inside cavity have gas residue; These residual gases cause great hidden danger to oil-submersible motor and protector, and for motor, residual gas can make the insulation of motor, lubricated and capacity of heat transmission decline, causes motor to damage when serious; For protector, residual gas can cause mechanical seal insufficient lubrication, and mechanical seal damages too early.In addition,, under winter colder environment, the oil viscosity in fuel tank increases, be difficult for injecting, existing mode of operation is fuel tank to be placed in greenhouse within 12 hours, reinject after softening, or utilizes steam to heat rear injection, field condition is had relatively high expectations, prepare the time in advance long.
Summary of the invention
The technical problem to be solved in the present invention is oiling mode deficiency before going into the well for existing submersible electric pump, and a kind of portable submersible electric pump oiling device and correction oil injection method are provided, and is characterized in: adopt the each parts of controller centralized control, thereby oil injecting speed is evenly controlled; Further, increase pumped vacuum systems, first carry out vacuum pumping before oiling, oiling under vacuum condition, prevents the better effects if of the gas residue in oiling process.
Technological scheme of the present invention is: a kind of portable submersible electric pump oiling device, comprise fuel tank, filling pump, it is characterized in that: also comprise controller, direct current motor, direct current motor is connected with filling pump, the voltage rating of direct current motor is equal to or less than 24V, controller contains PWM speed adjusting module, and described PWM speed adjusting module is connected with the power input interface of direct current motor.Described controller adopts PWM mode of speed regulation to carry out speed governing to direct current motor, the detent torque of direct current motor is large, speed adjusting performance is better, adopt PWM mode of speed regulation control DC motor rotation speed, rotating speed is more even, the oil injecting speed of filling pump is also more even, thereby has avoided the inhomogeneous and gas residue that causes of oil injecting speed; The voltage rating of direct current motor is equal to or less than the safety voltage of 24V, has improved the safety rate of execute-in-place.In order to reach better effect, portable submersible electric pump oiling device of the present invention can also adopt following measures:
1, as a modification of the present invention, electric heater is set in fuel tank, controller is by circuit control electric heater.Winter is compared with under cold environment, and after can first connecting oil that electric heater injects needs and heating in advance, row injects again, and not possessing at the scene under the condition of greenhouse or steam still can oiling, constructs more convenient.
2, described fuel tank side arranges oil level glass.So that the oil level in observation fuel tank.
3, described controller, direct current motor, filling pump and fuel tank integrate, and wherein filling pump is communicated with fuel tank internal by inlet line, and described fuel tank arranges handle.Because the fuel tank while is as the casing of whole portable submersible electric pump oiling device, other parts are all installed concentratedly on fuel tank, not only need not be as split type each oiling time, all parts need be reconnected, and minimizing volume, be convenient to carrying and operating under field operation environment, improve oiling efficiency.
4, in order to improve the effect of the gas residue existence preventing in oiling process, of the present invention having done further improved, involved in the present invention to submersible electric pump oiling device also comprise pumped vacuum systems, described pumped vacuum systems comprises the pipeline of switch valve, vacuum pump, one-way valve and connecting components, wherein be evacuated object, switch valve, vacuum pump and connect in turn by pipeline, one-way valve is arranged on the pipeline between relief opening and switch valve by bypass.
5, the using method of the submersible electric pump oiling device of band pumped vacuum systems of the present invention is:
First described filling pump is connected with the pouring orifice of oil-submersible motor or protector by pipeline, the pipeline of pumped vacuum systems is connected with the relief opening of oil-submersible motor or protector;
Open switch valve, open vacuum pump and vacuumize;
Reach and set while requiring until degree of vacuum, close vacuum pump, closing switch valve;
Start filling pump oiling;
After oil fills, back down one-way valve overflow, close filling pump.
The advantage of this kind of using method is: before oiling, first oil-submersible motor or protector are vacuumized; air in cavity is pumped; thereby while having guaranteed oiling; fluid can enter the various piece in cavity; be unlikely to form the stifled phenomenon of gas, reduce from principle the possibility that gas residue exists.
6, the oil in fuel tank must can guarantee good mobility in certain temperature range, and just have during higher than uniform temperature evaporation or on fire may; The too low meeting of oil level is mixed with air while causing oiling.For solving above technical problem, set temperature sensor, temperature control instrument and fuel level sensor in fuel tank, temperature transducer is placed in fluid and is connected with temperature control instrument by signaling line.Temperature control instrument receives temperature sensor signal, control the start and stop of electric heater in certain temperature range, by controlling the start and stop of electric heater in certain temperature range, oil temperature is stablized at a certain temperature, mobility that can not only guaranteed oil, has avoided evaporation or accident on fire to occur, can also by stable oil temperature at a certain temperature, guarantee that oil viscosity is isoparametric stable, is conducive to stable oiling.
8, described submersible electric pump oiling device also comprises that fuel level sensor is arranged on fuel tank bottom, and is connected with controller by signaling line.Controller receives the signal of fuel level sensor, when oil level is too low, forbids that filling pump starts, thereby while having avoided oil level too low, is mixed with the generation of air situation when oiling.
9, in the time that device contains pumped vacuum systems, if vacuum pump and filling pump are all integrated on fuel tank, can be very heavy, be not easy to field and carry and shift.Vacuum pump, filling pump are integrated into separately and vacuumize oiling module, described in vacuumize oiling module and be provided with fast oil circuit joint and the terminal inserted, fuel tank arranges its corresponding fast oil circuit joint and the terminal inserted.Vacuumize the setting of oiling module, facilitated and carried, the setting of quick inserting joint, has facilitated the equipment connection under field operation environment.
Accompanying drawing explanation
Fig. 1 is the structural drawing of a kind of mode of execution during not with pumped vacuum systems of the present invention.
Fig. 2 is a kind of fundamental diagram of mode of execution during with pumped vacuum systems of the present invention.
Fig. 3 is a kind of structural representation of mode of execution during with pumped vacuum systems of the present invention.
Fig. 4 be of the present invention during with pumped vacuum systems a kind of mode of execution vacuumize oiling modular structure schematic diagram.In figure, each piece number represents:
1-fuel tank, 2-controller, 3-controller power source socket, 4-filling pump, 5-send oil pipe line, 6-inlet line, 7-direct current motor, 8-oiling switch, 9-heater switch, 10-repairing mouth, 11-handle, 12-oil level glass, 13-electric heater, 14-lead-in wire, 15-vacuumizes oiling module, 16-vacuum pumping pump, 17-pipeline, 18-switch valve, 19-pipeline, 20-bypass, 21-one-way valve, 22-motor, 23-vacuumizes switch, 24-fuel level sensor, 25-signaling line, 26-signaling line, 27-oil temperature sensor, 28-temperature control instrument.
Embodiment
Accompanying drawings.
What Fig. 1 represented is a kind of a kind of mode of execution during not with pumped vacuum systems of the present invention.
In Fig. 1, controller 2, filling pump 4 and direct current motor 7 are installed concentratedly on fuel tank 1, and direct current motor 7 is connected with filling pump 4, and controller 2 contains PWM speed adjusting module, direct current motor 7 is carried out to PWM speed governing, and the voltage rating of direct current motor 7 is equal to or less than 24V.
Filling pump 4 and direct current motor 7 are arranged on fuel tank 1 top, and filling pump 4 is by inserting inlet line 6 oil suctions of fuel tank, by sending oil pipe line 5 to send oil to submersible electric pump or protector.
Controller 2 is arranged on fuel tank 1 side, and is introduced and controlled and electrical source of power by controller power source socket 3.The offside of controller 2 is provided with oil level glass 12.The other both sides of fuel tank 1 are provided with handle 11.
Fuel tank 1 bottom is provided with electric heater 13, by the 14 introducing power supplys that go between.
The oiling switch 8 of controlling motor start and stop is arranged on fuel tank 1 top with the heater switch 9 of controlling electric heater break-make, is also provided with repairing mouth 10 to the inner repairing of fuel tank 1.
Fig. 2, Fig. 3, Fig. 4 represent it is a kind of a kind of mode of execution during with pumped vacuum systems of the present invention.
Fig. 2 is the fundamental diagram of present embodiment.
In figure, device entirety by fuel tank 1, vacuumize oiling module 15, switch valve 18, one-way valve 21 and pipeline, signal line that each several part is connected form.
Wherein vacuumize controller 2, filling pump 4, direct current motor 7 and vacuum pumping pump 16, motor 22 are set in oiling module 15, described direct current motor 7 is connected with filling pump 4, drive filling pump 4 to turn round, described motor 22 is connected with vacuum pumping pump 16, drives vacuum pumping pump 16 to turn round; The inlet port of filling pump 4 is connected with inlet line 6, inlet line 6 inserts in fuel tank 1, the hydraulic fluid port that send of filling pump 4 is connected with pipeline 5, the other end of pipeline 5 is connected to the pouring orifice of oil-submersible motor or protector, filling pump 4 is by inserting inlet line 6 oil suctions of fuel tank, by sending oil pipe line 5 to send oil to submersible electric pump or protector; The bleeding point of vacuum pumping pump 16 is connected with pipeline 17, the other end of pipeline 17 is connected with an opening of switch valve 18, another opening connecting pipeline 19 of switch valve 18, the other end of pipeline 19 connects the relief opening of oil-submersible motor or protector, and vacuum pumping pump 16 extracts the air in oil-submersible motor or protector by pipeline 17, switch valve 18, pipeline 19; One-way valve 21 is arranged on pipeline 19 by bypass 20, can judge whether oil fills according to one-way valve 21 overflows.
Described controller 2 connects 24V DC electrical source, and described 24V DC electrical source, by integrated PWM speed adjusting module in oiling switch 8 access controllers 2, connects direct current motor 7 after the modulation of PWM speed adjusting module, and oiling switch 8 is for controlling the start and stop of direct current motor 7; In addition, controller 2 also receives the signal that is arranged on the fuel level sensor 24 in fuel tank 1, once oil level lower than critical value, controller 2 is by the power circuit of cutting-off controlling direct current motor 7, direct current motor 7 cannot start, thereby while having avoided oil level too low, is mixed with the generation of air situation when oiling; Described 24V DC electrical source accesses motor 22 by vacuumizing switch 23, thereby controls the start and stop of motor 22.
It is to be noted: in the present embodiment, direct current motor 7 and motor 22 share a 24V DC electrical source, only because arrange conveniently, do not represent that motor 22 must share a power supply with direct current motor 7, whether both adopt, and whether same power supply, power supply type that both adopt and voltage is identical does not all affect implementation result of the present invention; Same, the circuit connecting mode adopting in Fig. 2 middle controller 2 only represents the principle of controller 2 inside, when actual enforcement, those skilled in the art can adopt hardware or software to realize the controller of schematic diagram equivalence therewith.
It is to be noted equally: the circuit connecting mode that in Fig. 2, temperature control instrument 28 adopts only represents the principle of temperature control instrument 28 inside, when actual enforcement, those skilled in the art can adopt hardware or software to realize the controller of schematic diagram equivalence therewith;
The step that uses device in present embodiment to carry out oiling is:
Open switch valve 18, open vacuum pump 16 and vacuumize;
Reach and set while requiring until degree of vacuum, close vacuum pump 16, closing switch valve 18;
Start filling pump 7 oilings;
After oil fills, back down one-way valve 21 overflows, close filling pump 7.
Fig. 3 is the structural representation of fuel tank 1, inlet line 6, fuel level sensor 24, oil temperature sensor 27, electric heater 13 and temperature control instrument 28 concentrated settings on fuel tank 1, in figure each parts setting and Placement explain no longer one by one.
Fig. 4 is the structural representation that vacuumizes oiling module 15, and controller 2, filling pump 4, direct current motor 7 and vacuum pumping pump 16, motor 22 concentrated settings are vacuumizing in module 15, in figure each parts setting and Placement explain no longer one by one.
Claims (10)
1. a submersible electric pump oiling device, comprise fuel tank, filling pump, it is characterized in that: also comprise controller, direct current motor, direct current motor is connected with filling pump, the voltage rating of direct current motor is equal to or less than 24V, controller contains PWM speed adjusting module, and described PWM speed adjusting module is connected with the power input interface of direct current motor.
2. submersible electric pump oiling device according to claim 1, is characterized in that: electric heater is set in fuel tank, and controller is by circuit control electric heater.
3. fuel tank submersible electric pump oiling device according to claim 1, is characterized in that: side arranges oil level glass.
4. according to the submersible electric pump oiling device described in claims 1 to 3 any one, it is characterized in that: controller, direct current motor, filling pump and fuel tank integrate, wherein filling pump is communicated with fuel tank internal by inlet line, and described fuel tank arranges handle.
5. submersible electric pump oiling device according to claim 1, it is characterized in that: also comprise pumped vacuum systems, described pumped vacuum systems comprises the pipeline of switch valve, vacuum pump, one-way valve and connecting components, wherein be evacuated object, switch valve, vacuum pump and connect in turn by pipeline, one-way valve is arranged on the pipeline between relief opening and switch valve by bypass.
6. according to the submersible electric pump oiling device described in claim 1 or 2 or 3 or 5, it is characterized in that: set temperature sensor, temperature control instrument in fuel tank, temperature transducer is placed in fluid and is connected with temperature control instrument by signaling line.
7. according to the submersible electric pump oiling device described in claim 1 or 2 or 3 or 5, it is characterized in that: fuel level sensor is set in fuel tank, and fuel level sensor is arranged on fuel tank bottom, and is connected with controller by signaling line.
8. submersible electric pump oiling device according to claim 6, it is characterized in that: vacuum pump, filling pump are integrated into separately and vacuumize oiling function module, the described oiling function module that vacuumizes is provided with fast oil circuit joint and the terminal inserted, and fuel tank arranges its corresponding fast oil circuit joint and the terminal inserted.
9. submersible electric pump oiling device according to claim 7, it is characterized in that: vacuum pump, filling pump are integrated into separately and vacuumize oiling function module, the described oiling function module that vacuumizes is provided with fast oil circuit joint and the terminal inserted, and fuel tank arranges its corresponding fast oil circuit joint and the terminal inserted.
10. a correction oil injection method that utilizes the submersible electric pump oiling device described in claim 5, key step is:
First described filling pump is connected with the pouring orifice of oil-submersible motor or protector by pipeline, the pipeline of pumped vacuum systems is connected with the relief opening of oil-submersible motor or protector;
Open switch valve, open vacuum pump and vacuumize;
Reach and set while requiring until degree of vacuum, close vacuum pump, closing switch valve;
Start filling pump oiling;
After oil fills, back down one-way valve overflow, close filling pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410096808.4A CN103821689B (en) | 2014-03-17 | 2014-03-17 | A kind of portable submersible electric pump oiling device and correction oil injection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410096808.4A CN103821689B (en) | 2014-03-17 | 2014-03-17 | A kind of portable submersible electric pump oiling device and correction oil injection method |
Publications (2)
| Publication Number | Publication Date |
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| CN103821689A true CN103821689A (en) | 2014-05-28 |
| CN103821689B CN103821689B (en) | 2016-01-20 |
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| CN201410096808.4A Expired - Fee Related CN103821689B (en) | 2014-03-17 | 2014-03-17 | A kind of portable submersible electric pump oiling device and correction oil injection method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252950A (en) * | 2014-09-17 | 2014-12-31 | 国家电网公司 | Portable oil recharging device |
| CN106015895A (en) * | 2016-06-28 | 2016-10-12 | 河北工业大学 | Oiling device special for deep-sea oil pressure compensation device |
| CN106241714A (en) * | 2016-09-19 | 2016-12-21 | 中国海洋石油总公司 | A kind of portable injection system |
| CN108712509A (en) * | 2018-06-20 | 2018-10-26 | 上海庆科信息技术有限公司 | System, method and device for monitoring residual oil amount of oil injection pump of mechanical equipment and server |
| CN112072822A (en) * | 2020-09-10 | 2020-12-11 | 北京通嘉宏瑞科技有限公司 | Motor for vacuum pump and use method |
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| CN112072822A (en) * | 2020-09-10 | 2020-12-11 | 北京通嘉宏瑞科技有限公司 | Motor for vacuum pump and use method |
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| CN103821689B (en) | 2016-01-20 |
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