CN106194857A - Hydraulic lifting and automaton - Google Patents

Hydraulic lifting and automaton Download PDF

Info

Publication number
CN106194857A
CN106194857A CN201510227308.4A CN201510227308A CN106194857A CN 106194857 A CN106194857 A CN 106194857A CN 201510227308 A CN201510227308 A CN 201510227308A CN 106194857 A CN106194857 A CN 106194857A
Authority
CN
China
Prior art keywords
controller
motor
hydraulic
plunger
hydraulic lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510227308.4A
Other languages
Chinese (zh)
Inventor
张雷
杭发琴
徐文庆
刘常福
肖姝
贺启强
董元军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering Shengli Co
Original Assignee
China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering Shengli Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Research Institute of Petroleum Engineering Shengli Co filed Critical China Petroleum and Chemical Corp
Priority to CN201510227308.4A priority Critical patent/CN106194857A/en
Publication of CN106194857A publication Critical patent/CN106194857A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Abstract

The present invention provides a kind of hydraulic lifting and automaton, this device includes controller, motor, front pump/motor, front hydraulic control one-way valve, accumulator, rear pump/motor, rear hydraulic control one-way valve, wellhead hydraulic cylinder and fuel tank, one end of this motor is sequentially connected with this front pump/motor, this front hydraulic control one-way valve and this accumulator, the other end of this motor is sequentially connected with this rear pump/motor, this rear hydraulic control one-way valve and this wellhead hydraulic cylinder, this front pump/motor and this rear pump/motor are connected to this fuel tank, this controller is connected to this motor, and control the operation of this motor, so that this motor rotarily drives this front pump/motor and this rear pump/motor, drive hydraulic oil, carry out power transmission, so that described accumulator accumulation of energy or release energy, the plunger in this wellhead hydraulic cylinder is driven to run up and down.This hydraulic lifting and automaton can control hydraulic pressure lifting device and automatically run, it is achieved manufacturing parameter regulates, and running for system provides security protection.

Description

Hydraulic lifting and automaton
Technical field
The present invention relates to oil exploitation device, especially relate to a kind of hydraulic lifting and automaton.
Background technology
In oilfield process, pressure break, acidifying are the major measure of oil-water well increasing yield and injection, produce during fracture acidizing Residue impurity and secondary precipitate etc. easily cause Reservoir Fracture and pore plugging, reduce measure effect.In order to reduce measure pair The secondary pollution of downhole formation, needs the row's of returning working fluid as early as possible after measure.The up-to-date oil-water well of the most on-the-spot application returns drainage technique For exploration well oil test continuous draining technology, this technology realizes power transmission only with mechanical drive mode, runs up and down at suspension point During there is no balanced design, by heating resistor consume suspension point descending time potential energy acting, system energy consumption is high.Hydraulic lifting and Automaton uses hydraulic pressure and mechanical power transmission system to drive well head lifting hydraulic cylinder, is stored by hydraulic accumulator The descending potential energy of roofbolt, when roofbolt is up, release stores energy, helps motor acting, it is achieved the lifting to down-hole liquid. Hydraulic lifting and automaton can make full use of the descending potential energy of roofbolt, help roofbolt up, not only reduce system Energy consumption, and reduce the installed power driving motor, it is achieved that oil field produces energy-saving and cost-reducing purpose.
Summary of the invention
It is an object of the invention to provide a kind of hydraulic lifting and automaton, it is achieved the lifting of down-hole liquid, Yi Jisheng Produce in running the purposes such as manufacturing parameter regulation, security protection.
The purpose of the present invention can be achieved by the following technical measures: hydraulic lifting and automaton, this hydraulic lifting And automaton includes controller, motor, front pump/motor, front hydraulic control one-way valve, accumulator, rear pump/motor, Rear hydraulic control one-way valve, wellhead hydraulic cylinder and fuel tank, one end of this motor is sequentially connected with this front pump/motor, this front hydraulic control list To valve and this accumulator, the other end of this motor is sequentially connected with this rear pump/motor, this rear hydraulic control one-way valve and this wellhead liquid Cylinder pressure, this front pump/motor and this rear pump/motor are connected to this fuel tank, and this controller is connected to this motor, and controls Make the operation of this motor, so that this motor rotarily drives this front pump/motor and this rear pump/motor, drive hydraulic oil, Carry out power transmission, so that described accumulator accumulation of energy or release energy, drive the plunger in this wellhead hydraulic cylinder to run up and down.
The purpose of the present invention realizes also by following technical measures:
This hydraulic lifting and automaton also include high pressure slippage pump and low pressure slippage pump, and this high pressure slippage pump connects respectively Being connected to this hydraulic lifting and the high pressure line of automaton and fuel tank, this low pressure slippage pump is connected to this hydraulic pressure and lifts Rising and the low-pressure line of automaton and fuel tank, this controller is connected to this high pressure slippage pump and this low pressure slippage pump, To control this high pressure slippage pump and this low pressure slippage pump, the hydraulic oil in this fuel tank is pumped into this hydraulic lifting and automatically controls In the high and low pressure pipeline of device.
This controller also detects this high pressure slippage pump and whether this low pressure slippage pump exists fault, and at this high pressure slippage pump or When this low pressure slippage pump exists fault, this controller carries out malfunction coefficient and warning.
This hydraulic lifting and automaton also include temperature sensor, heater and air cooler, and this temperature sensor is even It is connected to this fuel tank, detects the temperature of hydraulic oil in this fuel tank and the temperature of hydraulic oil is transferred to this controller, this heater Being positioned in this fuel tank, this air cooler is positioned at above this fuel tank, and this controller is connected to this temperature sensor, this heating Device and this air cooler, when this temperature sensor detects the setting value lower limit that the temperature of hydraulic oil is arranged less than this controller, This controller starts this heater, heats hydraulic oil;When the setting value upper limit arranged higher than this controller, this controller opens This air cooler dynamic, reduces hydraulic fluid temperature.
This controller also detects whether this air cooler exists fault, and when this air cooler exists fault, this controller is carried out Malfunction coefficient and warning.
This hydraulic lifting and automaton also include liquid level sensor, and this liquid level sensor is positioned in this fuel tank, and even Being connected to this controller, this liquid level sensor detects the liquid level of this fuel tank and the level value of detection is transferred to this controller, when When the liquid level that this liquid level sensor detects is not in the liquid level value range that this controller sets, this controller carries out fault and shows Show and report to the police.
This hydraulic lifting and automaton also include energy storage pressure table, and this energy storage pressure table is connected to this accumulator With this controller, detect the pressure of this accumulator, and energy storage pressure is transferred to this controller, when this energy storage pressure When the energy storage pressure that table detects is not in the energy storage pressure value range that this controller sets, this controller carries out fault Display and warning.
This hydraulic lifting and automaton also include wellhead hydraulic cylinder Pressure gauge, and this wellhead hydraulic cylinder Pressure gauge is connected to This wellhead hydraulic cylinder and this controller, detect the pressure of this wellhead hydraulic cylinder, and by wellhead hydraulic cylinder pressure transmission to this control Device processed, the wellhead hydraulic cylinder that the wellhead hydraulic cylinder pressure detected when this wellhead hydraulic cylinder Pressure gauge does not sets at this controller Time in pressure limit value, this controller carries out malfunction coefficient and warning.
This hydraulic lifting and automaton also include displacement transducer, and this displacement transducer is positioned at this wellhead hydraulic cylinder, The top of this plunger, and it is connected to this controller, to detect the displacement of this plunger, and plunger displacement information is transferred to this Controller, this controller controls this motor according to plunger displacement information and this controller operational factor set in advance Rotating forward and reversely, the running status of this plunger is also shown by this controller in real time.
This controller operational factor set in advance includes setting the stroke of plunger and the stroke of jig frequency, i.e. this plunger and operation Speed, this motor rotates forward, and this plunger is up, when this displacement transducer detects that this plunger arrives the higher limit set, This motor inverts, and this plunger is descending;When this displacement transducer detects that this plunger arrives lower limit, this motor is just Turning, this plunger is up;This controller controls the rotating speed of this motor by the spurt set, thus controls the upper of this plunger The lower speed of service.
When the setting stroke that the plunger displacement information that this displacement transducer detects is arranged beyond this controller, this controller Carry out malfunction coefficient and warning.
This hydraulic lifting and automaton also include solenoid directional control valve, and this solenoid directional control valve is connected to this front hydraulic control Check valve, this rear hydraulic control one-way valve and this fuel tank, this controller is connected to this solenoid directional control valve, and by controlling this electromagnetism This front hydraulic control one-way valve and this rear hydraulic control one-way valve are controlled by reversal valve, it is achieved this plunger of this wellhead hydraulic cylinder is in office Meaning position starts and shuts down.
Hydraulic lifting in the present invention and automaton, it is possible to achieve the hydraulic system lifting to oil well, the most also may be used To store the descending potential energy of load, provide balance to hoisting system, reduce system energy consumption, reduce and drive power of motor;Control Device achieves the functions such as manufacturing parameter regulation, hydraulic system monitoring of working condition and regulation, improves what hydraulic lifting system ran Automaticity and security performance.Hydraulic lifting in the present invention and automaton, control motor by controller Rotate, drive hydraulic system principle, control wellhead hydraulic cylinder plug and run up and down, promote and transfer down-hole roofbolt;System intelligence Change degree is high, has visualized operation interface, real-time display system monitor state, and on-line control controls parameter;The most not It is interrupted and high pressure repairing motor, low pressure repairing motor, the pressure and temp etc. of hydraulic system are monitored and control, ensure system System safe and stable operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of the hydraulic lifting of the present invention and automaton.
Detailed description of the invention
For making the above and other objects, features and advantages of the present invention to become apparent, cited below particularly go out preferred embodiment, And coordinate shown in accompanying drawing, it is described in detail below.
As it is shown in figure 1, the hydraulic lifting that Fig. 1 is the present invention and the schematic diagram of automaton.This hydraulic lifting and automatically Control device bag accumulator 1, motor 2, front pump/motor 3, rear pump/motor 4, wellhead hydraulic cylinder 5, plunger 6, displacement Sensor 7, solenoid directional control valve 8, front hydraulic control one-way valve 9, rear hydraulic control one-way valve 10, high pressure slippage pump 11, low pressure slippage pump 12, air cooler 13, heater 14, temperature sensor 15, liquid level sensor 16, energy storage pressure table 17, wellhead hydraulic Cylinder Pressure gauge 18, fuel tank 19, controller 20.Liquid level sensor 16 is for detecting the liquid level of fuel tank 19, energy storage pressure table 17 and wellhead hydraulic cylinder Pressure gauge 18 detect accumulator 1 and the pressure of wellhead hydraulic cylinder 5 respectively, displacement transducer 7 is used for detecting The displacement of plunger 6, temperature sensor 15 is for detecting the temperature of hydraulic medium, and air cooler 13 and heater 14 are used for hydraulic pressure Medium cools down and heats.
When hydraulic lifting and automaton run, controller 20 first carry out the liquid level to fuel tank 19, pressure oil temperature, Accumulator 1 and the pressure of wellhead hydraulic cylinder 5, high pressure slippage pump 11 fault, low pressure slippage pump 12 fault, air cooler 13 fault Etc. detecting;When the pressure of liquid level, the temperature of pressure oil, accumulator 1 and the wellhead hydraulic cylinder 5 of fuel tank 19 is not setting In the range of, when high pressure slippage pump 11, low pressure slippage pump 12, air cooler 13 etc. are faulty, controller 20 is shown by operation Screen carries out malfunction coefficient and reports to the police;When, after failture evacuation, controller 20 starts high pressure slippage pump 11, low pressure slippage pump 12, Hydraulic oil in fuel tank 19 is pumped in the pipeline of hydraulic system, run ready for hydraulic system;Controller 20 starts electricity Motivation 2, motor 2 rotarily drives front pump/motor 3 and rear pump/motor 4, drives hydraulic oil, carries out power transmission, drives The plunger about 6 of wellhead hydraulic cylinder 5 runs;Control solenoid directional control valve 8 by controller 20, to front hydraulic control one-way valve 9 and after Hydraulic control one-way valve 10 is controlled, it is achieved the optional position of hydraulic system starts and shuts down, and its control process is: controller 20 control the different coil electricities of solenoid directional control valve 8 by the signal of telecommunication so that solenoid directional control valve 8 different port turns on, high pressure Or low-pressure fluid is by solenoid directional control valve 8, hydraulic control one-way valve 9 or the control mouth of rear hydraulic control one-way valve 10 before flowing to;Work as control When donsole connects high-pressure fluid, hydraulic control one-way valve two-way admittance, hydraulic system is properly functioning;Lowpressure stream is connected when controlling mouth During body, hydraulic control one-way valve one-way conduction, it is achieved hydraulic system is out of service;By controller 20 can to the stroke of plunger 6, The operational factors such as jig frequency are adjusted, and controller 2 is according to the operational factor set and the detection data of displacement transducer 7, logical Overregulate the commutation of the rotating speed of motor 2, it is achieved the upper and lower and friction speed of plunger 6 is run, and display each several part runs in real time Situation.On controller 20, man machine operation interface is installed, parameter setting can be carried out, plunger 6 running status shows in real time, Fault category shows and flashes warning;When fuel tank 19 liquid level is low, hydraulic fluid temperature exceeds scope of design, and displacement transducer 7 is examined The displacement measured is beyond setting stroke, when air cooler 13, high pressure slippage pump 11, low pressure slippage pump 12 electrical fault, controls Device 20 carries out malfunction coefficient and warning.
When temperature sensor 15 detects that hydraulic medium temperature exceeds system design values scope, if less than setting value lower limit, Controller 20 starts heater 14, heats hydraulic medium;If above the setting value upper limit, controller starts air cooler 13, Reduce hydraulic medium temperature.
Hydraulic lifting in the present invention and automaton, control motor 2 by controller 20 and rotate, after driving pump Motor 4, hydraulic medium extruding is internal to wellhead hydraulic cylinder 5, drive plunger 6 up, now accumulator 1 releases energy, Drive front pump motor 3 rotate, help motor 2 do work;When controller 20 control motor 2 reversely rotate time, down-hole carry Lotus drives plunger 6 descending, extrudes hydraulic medium, Beng motor 4 after driving, and driving electric machine 2 rotates, and drives Qian Beng motor 3, the acting of descending for plunger 6 potential energy is stored in accumulator 1;During plant running, hydraulic system is transported by controller 20 Row carries out calculating, analyze and automatically controlling, and mainly runs ginseng according to plunger 6 displacement signal and controller are set in advance Numerical control motor 2 rotates forward and reversely.Stroke and jig frequency (the namely stroke of plunger of plunger is set by controller And the speed of service).When plunger 6 is descending, when displacement transducer 7 detects that plunger 6 displacement reaches the stroke that controller 20 sets After, controller 20 controls motor 2 and shuts down, and then actuating motor 2 reversely rotates, and hydraulic system drives plunger 6 up, When plunger 6 goes upward to after top dead center, and controller 20 controls motor powered machine 2 and shuts down, and then actuating motor 2 reversely rotates, Drive plunger 6 up.Pressure in hydraulic circuit is monitored simultaneously, controls heater 14 and air cooler 13 and hydraulic pressure is situated between Matter temperature is adjusted, and control high pressure slippage pump 11, low pressure slippage pump 12 run, and is configured regulation to controlling parameter, Security of system situation is monitored, it is achieved the safe and stable operation of hydraulic lifting system.

Claims (12)

1. hydraulic lifting and automaton, it is characterised in that this hydraulic lifting and automaton include controller, electricity Motivation, front pump/motor, front hydraulic control one-way valve, accumulator, rear pump/motor, rear hydraulic control one-way valve, wellhead hydraulic cylinder and Fuel tank, one end of this motor is sequentially connected with this front pump/motor, this front hydraulic control one-way valve and this accumulator, this motor The other end is sequentially connected with this rear pump/motor, this rear hydraulic control one-way valve and this wellhead hydraulic cylinder, and this front pump/motor and this rear pump/ Motor is connected to this fuel tank, and this controller is connected to this motor, and controls the operation of this motor, so that this electricity Motivation rotarily drives this front pump/motor and this rear pump/motor, drives hydraulic oil, carries out power transmission, so that described accumulation of energy Device accumulation of energy or release energy, drives the plunger in this wellhead hydraulic cylinder to run up and down.
Hydraulic lifting the most according to claim 1 and automaton, it is characterised in that this hydraulic lifting and automatically controlling Device processed also includes high pressure slippage pump and low pressure slippage pump, and this high pressure slippage pump is connected to this hydraulic lifting and automatically controls The high pressure line of device processed and fuel tank, this low pressure slippage pump is connected to the low pressure of this hydraulic lifting and automaton Pipeline and fuel tank, this controller is connected to this high pressure slippage pump and this low pressure slippage pump, to control this high pressure slippage pump and to be somebody's turn to do Low pressure slippage pump, pumps into the hydraulic oil in this fuel tank in the high and low pressure pipeline of this hydraulic lifting and automaton.
Hydraulic lifting the most according to claim 2 and automaton, it is characterised in that this controller also detects this height Whether pressure slippage pump and this low pressure slippage pump exist fault, and when this high pressure slippage pump or this low pressure slippage pump exist fault, This controller carries out malfunction coefficient and warning.
Hydraulic lifting the most according to claim 1 and automaton, it is characterised in that this hydraulic lifting and automatically controlling Device also includes temperature sensor, heater and air cooler, and this temperature sensor is connected to this fuel tank, detects in this fuel tank The temperature of hydraulic oil is also transferred to this controller by the temperature of hydraulic oil, and this heater is positioned in this fuel tank, this air cooler position Above this fuel tank, this controller is connected to this temperature sensor, and this heater and this air cooler, when this temperature passes Sensor detects the setting value lower limit that the temperature of hydraulic oil is arranged less than this controller, and this controller starts this heater, adds Hydrothermal solution force feed;When the setting value upper limit arranged higher than this controller, this controller starts this air cooler, reduces hydraulic oil temperature Degree.
Hydraulic lifting the most according to claim 4 and automaton, it is characterised in that this controller also detects this wind Whether cooler exists fault, and when this air cooler exists fault, this controller carries out malfunction coefficient and warning.
Hydraulic lifting the most according to claim 1 and automaton, it is characterised in that this hydraulic lifting and automatically controlling Device processed also includes liquid level sensor, and this liquid level sensor is positioned in this fuel tank, and is connected to this controller, and this liquid level passes Sensor detects the liquid level of this fuel tank and the level value of detection is transferred to this controller, when the liquid that this liquid level sensor detects When position is not in the liquid level value range that this controller sets, this controller carries out malfunction coefficient and warning.
Hydraulic lifting the most according to claim 1 and automaton, it is characterised in that this hydraulic lifting and automatically controlling Device processed also includes energy storage pressure table, and this energy storage pressure table is connected to this accumulator and this controller, detects this accumulation of energy The pressure of device, and energy storage pressure is transferred to this controller, the energy storage pressure detected when this energy storage pressure table is not Time in the energy storage pressure value range that this controller sets, this controller carries out malfunction coefficient and warning.
Hydraulic lifting the most according to claim 1 and automaton, it is characterised in that this hydraulic lifting and automatically controlling Device processed also includes wellhead hydraulic cylinder Pressure gauge, and this wellhead hydraulic cylinder Pressure gauge is connected to this wellhead hydraulic cylinder and this controller, Detect the pressure of this wellhead hydraulic cylinder, and give this controller by wellhead hydraulic cylinder pressure transmission, when this wellhead hydraulic cylinder pressure When the wellhead hydraulic cylinder pressure that table detects is not in the wellhead hydraulic cylinder pressure limit value that this controller sets, this controller Carry out malfunction coefficient and warning.
Hydraulic lifting the most according to claim 1 and automaton, it is characterised in that this hydraulic lifting and automatically controlling Device processed also includes displacement transducer, and this displacement transducer is positioned at this wellhead hydraulic cylinder, the top of this plunger, and connects In this controller, to detect the displacement of this plunger, and plunger displacement information is transferred to this controller, this controller according to Plunger displacement information and this controller operational factor set in advance control rotating forward and reversely of this motor, this control The running status of this plunger is also shown by device processed in real time.
Hydraulic lifting the most according to claim 9 and automaton, it is characterised in that this controller is set in advance Operational factor includes setting the stroke of plunger and the stroke of jig frequency, i.e. this plunger and the speed of service, and this motor rotates forward, should Plunger is up, and when this displacement transducer detects that this plunger arrives the higher limit set, this motor inverts, this plunger Descending;When this displacement transducer detects that this plunger arrives lower limit, this motor rotates forward, and this plunger is up;This control Device processed controls the rotating speed of this motor by the spurt set, thus controls the speed of service up and down of this plunger.
11. hydraulic lifting according to claim 9 and automatons, it is characterised in that when this displacement transducer detects During the setting stroke that the plunger displacement information arrived is arranged beyond this controller, this controller carries out malfunction coefficient and warning.
12. hydraulic lifting according to claim 1 and automatons, it is characterised in that this hydraulic lifting and from Dynamic control device also includes solenoid directional control valve, and this solenoid directional control valve is connected to this front hydraulic control one-way valve, this rear hydraulic control list To valve and this fuel tank, this controller is connected to this solenoid directional control valve, and by controlling this solenoid directional control valve to this front hydraulic control list It is controlled to valve and this rear hydraulic control one-way valve, it is achieved this plunger of this wellhead hydraulic cylinder starts at an arbitrary position and shuts down.
CN201510227308.4A 2015-05-07 2015-05-07 Hydraulic lifting and automaton Pending CN106194857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510227308.4A CN106194857A (en) 2015-05-07 2015-05-07 Hydraulic lifting and automaton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510227308.4A CN106194857A (en) 2015-05-07 2015-05-07 Hydraulic lifting and automaton

Publications (1)

Publication Number Publication Date
CN106194857A true CN106194857A (en) 2016-12-07

Family

ID=57459079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510227308.4A Pending CN106194857A (en) 2015-05-07 2015-05-07 Hydraulic lifting and automaton

Country Status (1)

Country Link
CN (1) CN106194857A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108278248A (en) * 2018-03-20 2018-07-13 阜新市石油工具厂 Hydraulic petroleum lifting device intelligence control system
CN109944836A (en) * 2019-03-21 2019-06-28 福建工程学院 A kind of servo motor drives the distributed direct Driving force system of double constant displacement pumps
CN111630274A (en) * 2018-01-30 2020-09-04 科美特米有限公司 Deep well pump and method of use
CN113338879A (en) * 2021-07-09 2021-09-03 德州华海石油机械股份有限公司 Automatic control system and control method of horizontal pressure flooding injection device for oil field
CN113701549A (en) * 2021-09-06 2021-11-26 浙江尔格科技股份有限公司 Energy-saving control device and control method for closed-cycle oil-water heat exchange system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001253649A (en) * 2000-03-15 2001-09-18 Oil Drive Kogyo Kk Hydraulic circuit for hydraulic elevator
CN1987124A (en) * 2006-12-14 2007-06-27 浙江大学 Energy saving hydraulic lifting system of variable hydraulic counterweight
CN101070864A (en) * 2007-06-25 2007-11-14 哈尔滨工业大学 Energy-store state-liquid driving device of secondary flow-regulation coupling hydraulic energy accumulator
CN202597343U (en) * 2012-05-29 2012-12-12 郑州正弘桩工机械制造有限公司 Temperature regulation device for hydraulic oil tank
CN203097844U (en) * 2013-02-26 2013-07-31 博世力士乐(常州)有限公司 Power unit of hydraulic pumping unit and hydraulic pumping unit comprising power unit
CN203939795U (en) * 2014-05-23 2014-11-12 中国石油化工股份有限公司 Hydraulic power unit
CN204213079U (en) * 2014-11-07 2015-03-18 中国石油化工股份有限公司 A kind of hydraulic brake circuit
CN204692203U (en) * 2015-05-07 2015-10-07 中国石油化工股份有限公司 A kind of hydraulic lifting and automatic controller

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001253649A (en) * 2000-03-15 2001-09-18 Oil Drive Kogyo Kk Hydraulic circuit for hydraulic elevator
CN1987124A (en) * 2006-12-14 2007-06-27 浙江大学 Energy saving hydraulic lifting system of variable hydraulic counterweight
CN101070864A (en) * 2007-06-25 2007-11-14 哈尔滨工业大学 Energy-store state-liquid driving device of secondary flow-regulation coupling hydraulic energy accumulator
CN202597343U (en) * 2012-05-29 2012-12-12 郑州正弘桩工机械制造有限公司 Temperature regulation device for hydraulic oil tank
CN203097844U (en) * 2013-02-26 2013-07-31 博世力士乐(常州)有限公司 Power unit of hydraulic pumping unit and hydraulic pumping unit comprising power unit
CN203939795U (en) * 2014-05-23 2014-11-12 中国石油化工股份有限公司 Hydraulic power unit
CN204213079U (en) * 2014-11-07 2015-03-18 中国石油化工股份有限公司 A kind of hydraulic brake circuit
CN204692203U (en) * 2015-05-07 2015-10-07 中国石油化工股份有限公司 A kind of hydraulic lifting and automatic controller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111630274A (en) * 2018-01-30 2020-09-04 科美特米有限公司 Deep well pump and method of use
US11289973B2 (en) 2018-01-30 2022-03-29 Comet-ME Ltd. Borehole pump and method of using the same
CN108278248A (en) * 2018-03-20 2018-07-13 阜新市石油工具厂 Hydraulic petroleum lifting device intelligence control system
CN109944836A (en) * 2019-03-21 2019-06-28 福建工程学院 A kind of servo motor drives the distributed direct Driving force system of double constant displacement pumps
CN113338879A (en) * 2021-07-09 2021-09-03 德州华海石油机械股份有限公司 Automatic control system and control method of horizontal pressure flooding injection device for oil field
CN113701549A (en) * 2021-09-06 2021-11-26 浙江尔格科技股份有限公司 Energy-saving control device and control method for closed-cycle oil-water heat exchange system

Similar Documents

Publication Publication Date Title
CN106194857A (en) Hydraulic lifting and automaton
CN202144943U (en) Liquid nitrogen pump skid
CN104454748A (en) Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves
CN204692203U (en) A kind of hydraulic lifting and automatic controller
CN104454791A (en) Parallel-energy-saving-technology-based hydraulic device for testing durability of hydraulic pumps and overflow valves
CN108006013B (en) Online detection system and detection method for hydraulic hoist
CN203293988U (en) Oil on-line detection system for engineering machines
CN206592105U (en) A kind of intelligent controlling device applied on oil-field oil pumper
CN108278248A (en) Hydraulic petroleum lifting device intelligence control system
CN109335965A (en) A kind of wisdom security monitoring system of hoister and working method
CN208010703U (en) Hydraulic petroleum lifting device intelligence control system
CN106990723A (en) A kind of jetting machine and its water-free detection method
CN206738303U (en) A kind of independent lift control system of vehicle window
CN204312437U (en) The synthesis energy saving experimental liquid pressure device of gear pump, relief valve and one-way valve reliability
CN107764652A (en) A kind of 210MPa production trees device for detecting water pressure
CN203500182U (en) Remote fault diagnosis device for hydraulic system of forklift
CN207145373U (en) A kind of oil cylinder decision-making system in place
CN206158976U (en) Hydraulic pump servo control structure
CN205387916U (en) Power tong monitored control system
CN210422582U (en) Oil extraction switch device and layered oil extraction equipment
CN204436770U (en) A kind of multi-head pump pressure fault detection device
CN207246155U (en) The garbage-compressing machine hydraulic system of tape jam detection
CN105179339B (en) A kind of hydraulic control system on underwater hydraulic auto clawing beam
CN209011803U (en) A kind of pumping unit control device with fault diagnosis functions
CN203962353U (en) A kind of monitoring alarm device of cracked diaphragm of diaphragm pump

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20161207