CN205446286U - Novel two accuses of variable plunger -type fuel pump device - Google Patents
Novel two accuses of variable plunger -type fuel pump device Download PDFInfo
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- CN205446286U CN205446286U CN201521060541.XU CN201521060541U CN205446286U CN 205446286 U CN205446286 U CN 205446286U CN 201521060541 U CN201521060541 U CN 201521060541U CN 205446286 U CN205446286 U CN 205446286U
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Abstract
The utility model discloses a novel two accuses of variable plunger -type fuel pump device, including the oil pump and with the motor that the oil pump links to each other still includes main control device and reserve controlling means, main control device has automatically controlled handle, automatically controlled handle power source input port is equipped with the relay, just automatically controlled handle has connected gradually automatically controlled pilot valve, servovalve, the servovalve is connected with the servo -cylinder, reserve controlling means include the filter and with the two for two magenetic exchange valve that the filter links to each other, magenetic exchange valve has connected gradually liquid accuse handle, liquid accuse pilot valve and stacked unidirectional valve, the stacked unidirectional valve with the servovalve links to each other, the relay still with magenetic exchange valve links to each other, just the relay is not right simultaneously magenetic exchange valve with the power supply of automatically controlled handle. Compared with the prior art, the utility model discloses can realize the mutual noninterference of two sets of controlling means to guarantee the normal operation of oil well, reduced the loss of enterprise, brought the opportunity for the better development of test operation.
Description
Technical field
This utility model relates to oilfield test implement technical field, is specifically related to a kind of new variables plunger-type fuel pump double-control apparatus.
Background technology
Oilfield test jobs cable or steel wire test winch, be to cooperate with different downhole instruments and can carry out the oilfield well testing of underground work, the well logging special equipments such as pressure measurement, thermometric, well logging gradient, bottom-hole sampling, detection sand face, wax removal and small-sized salvaging.In testing well operation process, it is wound around by the rotating of cylinder and release cable (or steel wire), thus reaches to promote and transfer the purpose of downhole instrument, to meet the requirement of depth of falling well and speed.Test winch control device mainly uses three kinds of modes: the first is to use Closed Hydraulic transmission, and the second uses machine driving, and the third is to use open hydraulic transmission.Because hydraulic drive is steady, it is easy to maintenance to operate, speed governing is accurate and noise is low and is widely used.Along with oil exploration region is constantly expanded, logger rise in price, labor efficiency is more and more higher, it is desirable to the reliability of equipment is the highest.If the periphery of control oil pump goes wrong, causing test winch cisco unity malfunction, as do not proposed from well by test instrunment in time, instrument will be bottled up by oil well, the cable (or steel wire) promoting instrument will be cut off, then with fishing-vehicle, instrument be salvaged.So, while causing cable (or steel wire) to scrap, also to allocate other equipment, delay the duration, cause heavy economic losses.Therefore the reliability controlling device driving winch is most important.
In prior art, what test winch application was most is Closed Hydraulic device, and Closed Hydraulic device has and uses the DANFOSS90 automatically controlled variable piston oil pump of series, this device uses the pilot valve on joystick (signal of telecommunication) control variable plunger-type fuel pump, thus convert the electrical signal to pressure signal and control the motion of servo valve main valve plug, make the servoBcylinder in master control liquefaction entering variable plunger displacement pump, double acting servo piston is produced active force and is subjected to displacement, servo piston drives swashplate feedback bar and drives swash plate to move, swashplate angle is made to change, thus the change of the oil drain quantity of control oil pump and suction (row) force feed direction transformation, reach to control motor rotary speed and the purpose of motor output rotating.This hydraulic means added standby control device in recent years, when joystick (signal of telecommunication) goes wrong, standby control device can be used to make variable piston operation of oil pump, reach the purpose of emergency.But this standby control device occurs in that some problems in actual use: due to reasons such as maloperations, two sets control device and interfere；In standby control loop, SERVO CONTROL oil circuit or valve member may be resulted in blockage by the impurity in fluid, affect oil pump and normally work；Due to reasons such as pressure loss in piping in standby control loop, the pressure oil pressure eventually entering into servoBcylinder is on the low side, swash plate deflection angle is made not reach maximum, oil pump capacity does not reaches maximum, therefore cause motor speed on the low side, maximum speed only has 1/3～1/2 that joystick (signal of telecommunication) controls, and oil pump can only be at small displacement operated within range simultaneously, and oil pump does not reaches fully loaded duty.
Utility model content
For solving drawbacks described above, the purpose of this utility model is to provide a kind of new electronic control variable piston oil pump double-control apparatus, can realize two sets control devices and not interfere with each other, thus ensure the normal operation of oil well, reducing the loss of enterprise, the more preferably development for test jobs brings opportunity.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of new variables plunger-type fuel pump double-control apparatus, including oil pump and the motor that is connected with described oil pump, it is characterized in that: also include main control unit and standby control device, described main control unit has electric control handle, described electric control handle power inlet is provided with relay, and described electric control handle is connected with automatically controlled pilot valve in turn, servo valve, described servo valve connects servoBcylinder, and the piston movement of servoBcylinder described in described servo valve control, described automatically controlled pilot valve, described servo valve and described servoBcylinder are all located on described oil pump；Described standby control device includes the filter being connected with the outlet of described oil pump one and the 2/2-way solenoid directional control valve being connected with described filter, described solenoid directional control valve is connected with hydraulic control handle, hydraulic control pilot valve and stacked unidirectional valve in turn, and described stacked unidirectional valve is connected with described servo valve；Described relay is also connected with described solenoid directional control valve, and the power on/off of described solenoid directional control valve and described electric control handle is changed between described main control unit and described standby control device by described relay.
Preferably, hydraulic tube is all used to connect between described filter, described solenoid directional control valve, described hydraulic control pilot valve, described stacked unidirectional valve and described servo valve.
Described filter is provided with check valve.
This utility model is in actual use, when described main control unit works, described relay powers to described electric control handle, described solenoid directional control valve is in off-position, described standby control device does not works, the most described electric control handle sends the signal of telecommunication to described automatically controlled pilot valve, the spool output pilot pressure of described automatically controlled pilot valve promotes the main valve plug motion of described servo valve, thus realize the main control unit control to described servoBcylinder piston, described servoBcylinder piston determines described oil pump swashplate angle position, and then it is controlled to complete pumpage, any switching laws can be carried out to set incident angle between positive maximum pump discharge and negative maximum pump discharge, thus control rotating speed and the output rotating of described bidirectional ram motor；When described main control unit can not work, described relay powers to described solenoid directional control valve, described solenoid directional control valve is in channel status, described electric control handle is in off-position and exports without the signal of telecommunication, the control oil come from the outlet of described oil pump one enters hydraulic control pilot valve, stacked unidirectional valve through described filter, described solenoid directional control valve, subsequently into the servo valve on described oil pump, finally realize the control to described servoBcylinder piston of the standby control device；Servo valve main valve plug motion on described main control unit and described standby control device equal controllable variable plunger-type fuel pump, make the servoBcylinder in master control liquefaction entering variable plunger displacement pump, double acting servo piston is produced active force and is subjected to displacement, servo piston drives swashplate feedback bar and drives swash plate to move, swashplate angle is made to change, thus the change of the oil drain quantity of control oil pump and suction (row) force feed direction transformation, reach to control motor rotary speed and motor output rotating.
This utility model has two sets of main control unit and standby control device composition and controls devices, by relay, at two sets, the power on/off of 2/2-way solenoid directional control valve and electric control handle is controlled conversion between devices.Main control unit is by automatically controlled pilot valve on control electric control handle control oil pump and then controls servo valve and servoBcylinder piston, reaches the purpose of control oil pump；Standby control device is by the servo valve in hydraulic control pilot valve control oil pump and then controls servoBcylinder piston, reaches the purpose of control oil pump.When main control unit fault can not work, standby control device works as emergency control apparatus, the effect of stacked unidirectional valve is to solve in fluid impurity to servo valve and the impact of oil circuit control, turn on when standby control device works, when standby control device does not works, being closed by oil circuit between main control unit and hydraulic control pilot valve, make main control unit and standby control device be independent of each other, the effect of filter is to ensure that the cleaning controlling oil.In real work, the joystick in main control unit there will be fault often, makes oil pump main control unit cisco unity malfunction, and after increasing standby control device, enabling rapidly standby control device can propose downhole probe from well, prevents from damaging downhole instrument.
Compared with prior art; this utility model can realize two sets and control that devices do not interfere with each other, ensure to control the cleaning of fluid, making two sets control devices, that oil pump controls effect is consistent thus the normal test operation of oil well is effectively ensured, and reduces the economic loss causing winch shutdown to bring because of oil pump control apparatus fault.
Accompanying drawing explanation
Below according to drawings and Examples, structure and features of the present utility model is further described.
Fig. 1 is hydraulic schematic diagram of the present utility model.
Fig. 2 be this utility model actually used in scheme of installation.
In accompanying drawing 1 and Fig. 2,1. oil pump, 2. motor, 3. electric control handle, 4. solenoid directional control valve, 5. hydraulic control handle, 6. stacked unidirectional valve, 7. relay, 8. filter, the most automatically controlled pilot valve or hydraulic control pilot valve, 10. servo valve, 11. servoBcylinders, 12. control panels, 13. proportional amplifiers, 14. donkey pumps, 15. power transmission shafts, 16. oil pump brackets, 17. hydraulic tubes, 18. winches.
Detailed description of the invention
Referring to accompanying drawing 1, a kind of new variables plunger-type fuel pump double-control apparatus, including oil pump and the motor that is connected with described oil pump, also include main control unit and standby control device, described main control unit has electric control handle, described electric control handle power inlet is provided with relay, and described electric control handle is connected with automatically controlled pilot valve, servo valve in turn, described servo valve connects servoBcylinder, and the piston movement of servoBcylinder described in described servo valve control, described automatically controlled pilot valve, described servo valve and described servoBcylinder are all located on described oil pump；Described standby control device includes the filter being connected with the outlet of described oil pump one and the 2/2-way solenoid directional control valve being connected with described filter, described solenoid directional control valve is connected with hydraulic control handle, hydraulic control pilot valve and stacked unidirectional valve in turn, and described stacked unidirectional valve is connected with described servo valve；Described relay is also connected with described solenoid directional control valve, and the power on/off of described solenoid directional control valve and described electric control handle is changed between described main control unit and described standby control device by described relay.
Preferably, hydraulic tube is all used to connect between described filter, described solenoid directional control valve, described hydraulic control pilot valve, described stacked unidirectional valve and described servo valve.
Described filter is provided with check valve.
In actually used, when described main control unit works, described relay powers to described electric control handle, described solenoid directional control valve is in off-position, described standby control device does not works, the most described electric control handle sends the signal of telecommunication to described automatically controlled pilot valve, the spool output pilot pressure of described automatically controlled pilot valve promotes the main valve plug motion of described servo valve, thus realize the main control unit control to described servoBcylinder piston, described servoBcylinder piston determines described oil pump swashplate angle position, and then it is controlled to complete pumpage, any switching laws can be carried out to set incident angle between positive maximum pump discharge and negative maximum pump discharge, thus control rotating speed and the output rotating of described bidirectional ram motor；When described main control unit can not work, described relay powers to described solenoid directional control valve, described solenoid directional control valve is in channel status, described electric control handle is in off-position and exports without the signal of telecommunication, the control oil come from the outlet of described oil pump one enters hydraulic control pilot valve, stacked unidirectional valve through described filter, described solenoid directional control valve, subsequently into the servo valve on described oil pump, finally realize the control to described servoBcylinder piston of the standby control device；Servo valve main valve plug motion on described main control unit and described standby control device equal controllable variable plunger-type fuel pump, make the servoBcylinder in master control liquefaction entering variable plunger displacement pump, double acting servo piston is produced active force and is subjected to displacement, servo piston drives swashplate feedback bar and drives swash plate to move, swashplate angle is made to change, thus the change of the oil drain quantity of control oil pump and suction (row) force feed direction transformation, reach to control motor rotary speed and motor output rotating.The angle that hydraulic control pilot valve handle is opened is big, and the oil drain quantity of variable piston oil pump is the biggest, and the angle that hydraulic control pilot valve handle is opened is little, and the oil drain quantity of variable piston oil pump is the least.The function of stacked unidirectional valve, is to ensure that standby control device does not interferes with master control set work, and hydraulic control pilot valve is when middle position, and stacked unidirectional valve is in closure state.
This utility model can realize two sets control devices and not interfere with each other; ensure to control the cleaning of fluid, making two sets control devices, that oil pump controls effect is consistent thus the normal test operation of oil well is effectively ensured, and reduces the economic loss causing winch shutdown to bring because of oil pump control apparatus fault.
Referring in accompanying drawing 2, being fixed on by variable piston oil pump 1 on cable well testing truck chassis frame, be connected with automobile PTO by power transmission shaft 15, bidirectional ram motor is fixed on decelerator.Electric control handle, hydraulic control pilot valve are arranged on the operating board panel of cable well testing truck, and stacked unidirectional valve is arranged on automobile chassis suitably position.In this example, main control unit uses electric control handle control pilot valve, connected by electric wire between electric control handle and pilot valve, complete the control to oil pump；Standby control device controls servo valve by hydraulic control loop, reaches to control the purpose of bidirectional variable plunger-type fuel pump.
Described above is only preferred embodiment of the present utility model; above-mentioned specific embodiment is not to restriction of the present utility model; retouching, amendment or the equivalent that all those of ordinary skill in the art are made as described above, belongs to protection domain of the present utility model.
Claims (3)
1. a new variables plunger-type fuel pump double-control apparatus, including oil pump and the motor that is connected with described oil pump, it is characterized in that: also include main control unit and standby control device, described main control unit has electric control handle, described electric control handle power inlet is provided with relay, and described electric control handle is connected with automatically controlled pilot valve, servo valve in turn, described servo valve connects servoBcylinder, and the piston movement of servoBcylinder described in described servo valve control, described automatically controlled pilot valve, described servo valve and described servoBcylinder are all located on described oil pump；Described standby control device includes the filter being connected with the outlet of described oil pump one and the 2/2-way solenoid directional control valve being connected with described filter, described solenoid directional control valve is connected with hydraulic control handle, hydraulic control pilot valve and stacked unidirectional valve in turn, and described stacked unidirectional valve is connected with described servo valve；Described relay is also connected with described solenoid directional control valve, and the power on/off of described solenoid directional control valve and described electric control handle is changed between described main control unit and described standby control device by described relay.
New variables plunger-type fuel pump double-control apparatus the most according to claim 1, it is characterised in that: all use hydraulic tube to connect between described filter, described solenoid directional control valve, described hydraulic control pilot valve, described stacked unidirectional valve and described servo valve.
New variables plunger-type fuel pump double-control apparatus the most according to claim 1, it is characterised in that: described filter is provided with check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060541.XU CN205446286U (en) | 2015-12-18 | 2015-12-18 | Novel two accuses of variable plunger -type fuel pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060541.XU CN205446286U (en) | 2015-12-18 | 2015-12-18 | Novel two accuses of variable plunger -type fuel pump device |
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| CN205446286U true CN205446286U (en) | 2016-08-10 |
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| CN201521060541.XU Active CN205446286U (en) | 2015-12-18 | 2015-12-18 | Novel two accuses of variable plunger -type fuel pump device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678359A (en) * | 2016-12-21 | 2017-05-17 | 山推工程机械股份有限公司 | Electric-hydraulic cooperative control type speed changing system for bulldozer |
| PL425196A1 (en) * | 2018-04-11 | 2019-10-21 | Hydro-Vacuum Spółka Akcyjna | Method for controlling the intermediate pumping station and the device for controlling the intermediate pumping station |
-
2015
- 2015-12-18 CN CN201521060541.XU patent/CN205446286U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678359A (en) * | 2016-12-21 | 2017-05-17 | 山推工程机械股份有限公司 | Electric-hydraulic cooperative control type speed changing system for bulldozer |
| CN106678359B (en) * | 2016-12-21 | 2018-06-15 | 山推工程机械股份有限公司 | Soil-shifting mechanical electronic hydraulic Collaborative Control speed change system |
| PL425196A1 (en) * | 2018-04-11 | 2019-10-21 | Hydro-Vacuum Spółka Akcyjna | Method for controlling the intermediate pumping station and the device for controlling the intermediate pumping station |
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