CN1603014A - Automatic flushing device for oil field working equipment - Google Patents
Automatic flushing device for oil field working equipment Download PDFInfo
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- CN1603014A CN1603014A CN 200410050757 CN200410050757A CN1603014A CN 1603014 A CN1603014 A CN 1603014A CN 200410050757 CN200410050757 CN 200410050757 CN 200410050757 A CN200410050757 A CN 200410050757A CN 1603014 A CN1603014 A CN 1603014A
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Abstract
One kind of oil field work equipment automatic purifier, including the rack,the nozzle above the assembly, the high-pressured water jet flow cleansing agent, the automatic control system,Among it the rack uses the gate type walking rack, the rack two sides hoop separately uses the electricity machine to actuate, and separately establishes the fixed manipulator and the active manipulator, installs the high pressure clear ramrod on the manipulator and the long target distance nozzle which is controled by the long-distance control equipment, the high-pressured clean spurts pole is separately connects with automatic control system hydraulic control return route the oil motor outputs axle-box.Its structure is reasonable, operation is simple, adjustment is convenient,realizate intelligence automatic control the clean work, may thoroughly eliminates the dirt in the oil field work equipment, the movement is quick, safe is reliable, reduces operator's labor intensity, remarkably enhances the clean working efficiency and the distinct improvement clean effect, saves water, does not have the pollution, is advantageous to improve the working condition and the protection environment, and makes the foundational work in advance to sentence and accurately analysis the service life of the equipment.
Description
Technical field
The present invention relates to a kind of high-pressure water jet jet cleaning technology, particularly a kind of efficient, free of contamination oil field operation equipment automatic flushing device that integrates high-pressure injection cleaning technique, sensing technology, automated control technology, hydraulic control technology, Machine Design and manufacturing technology, it is applicable to the automatic cleaning of oil field well maintenance vehicle, workover derrick and large equipments such as diesel generating set, slush pump, also can derive to be used for the automatic cleaning of other similar operating mode equipment.
Background technology
Oil field well maintenance vehicle, workover derrick are the key equipments that ensures the normal safe oil producing operation of oilfield, be mainly used in regular maintenance and maintenance at the labour oil well, yet because the specific environment in oil field, equipment such as well maintenance vehicle, workover derrick is worked under the condition all the year round in the open air, stand for a long time to expose to the weather and drench with rain and the pollution and the corrosion of dirt such as grease, mud, owing to there is not suitable wash equipment, can't thoroughly clean derrick after operation is finished, more can not carry out quantitatively and qualitative evaluation its security that continues to use.Most workover derricks surface is all covered by a thick layer of dirt, and dirt thickness great majority are more than 5mm.
The existence of derrick surface dirt produces two factors that influence is safe:
1. because of the existence of corrosion factor in the dirt, workover derrick is in the environment that is corroded for a long time, and material aging makes the intensity of derrick reduce, and produces many destabilizing factors that influence safety work, has serious potential safety hazard.
2. the existence of derrick surface dirt can't distribute and intensity with the STRESS VARIATION that instrument accurately be measured derrick.Generally speaking, only judge by the service life and the maintenance experience of workover derrick whether it can continue to use.
Because the existence of above-mentioned factor lacks scientific and effective detection means and judgment basis simultaneously, the accident that derrick caves in the workover treatment process happens occasionally, and has not only caused enormous economic loss, and causes great safety responsibility accident easily.Traditional method is exactly artificial the cleaning, but the artificial labour intensity that cleans is big, inefficiency, and it is undesirable to remove effect.And for the method for Chemical cleaning, though its operation than being easier to, but the liquid waste processing difficulty is bigger, can produce environment to pollute.In order to ensure the ordinary production of oil well, avoid the generation of serious accident, eliminate safe hidden trouble and because of clean producing the pollution to environment, the equipment that is applicable to oil field well maintenance vehicle, workover derrick and large equipment surface clean is all looked forward to can developing early by oil field operation company.
The Technolgy of High Pressure Water jet Cleaning is a comprehensive new technology that grows up nineteen seventies, having arrived the eighties middle and later periods just obtains promoting in China, spread all over each industrial circle soon, be used widely in fields such as Industrial Boiler, heat-exchange apparatus, industrial container, tank body, reactor, blow-off line, material conveying pipes.But this The application of new technique rests on the level of stand-alone device and artificial pistol washing and cleaning operation mostly, the water jet range is short, and pressure can not be realized remote control and regulation, therefore exists automaticity relatively low, the operation field environment is abominable, the defective that labor intensity of operating staff is bigger.
It is 200310119175.6 " water under high pressure cleans with long range shower nozzle " that the inventor has once designed the patent No. at above-mentioned defective, and it is simple in structure, and the jet energy is big, and range is long, and is big to the impulsive force of surface to be cleaned, significantly improve cleaning performance.Designed the patent No. and be 200310119176.0 " high pressure washer Long-distance Control regulator ", the solution of its success the pressure of can't realizing that exists of existing high pressure water jet equipment regulate the technical barrier of Long-distance Control, have that antijamming capability is strong, pressure is regulated characteristics such as control reliability height.Realized that effectively high-pressure water jet cleans automatic on-line remote control and regulation washing and cleaning operation and the clearance rate that significantly improves cleaning efficient and exposed surface dirt.
Summary of the invention
The purpose of this invention is to provide a kind of oil field operation equipment automatic flushing device; its reasonable in design; processing ease, easy to adjust; realize the Based Intelligent Control washing and cleaning operation; can thoroughly remove the dirt of oil field operation equipment; move quick, safe and reliable; reduce labor intensity of operating personnel; significantly improve cleaning efficient and obviously improve cleaning performance; water saving, pollution-free; help improving working condition and protection environment, for doing basic work exactly the service life of analysis and anticipation equipment.
The object of the present invention is achieved like this: this device comprises frame, assemble high-pressure wash spray boom and shower nozzle on it, high pressure water-jet cleaner that is connected with shower nozzle and automatic control system, its technical essential is: frame adopts the gate-type walked frame, the frame both sides utilize the actuator drives of driven by motor respectively along the roller of track travel, fixed adjusting manipulator and movable adjusting manipulator are set respectively in the frame both sides, high-pressure wash spray boom and shower nozzle are installed on manipulator, the water under high pressure of high pressure washer output is transported to water under high pressure by Long-distance Control regulator and pressure duct and cleans with long range shower nozzle, and realize the remote control and regulation of pressure by the Long-distance Control regulator, high-pressure wash spray boom on fixed adjusting manipulator and the movable adjusting manipulator, respectively with the hydraulic control circuit of automatic control system in hydraulic motor output shaft be fixedly connected, realize the reciprocally swinging of high-pressure wash spray boom and the adjusting of hunting frequency.
The display screen of described automatic control system is connected with the camera of the monitoring system that is fixed on the frame top.
There is delivery to be cleaned the forward and backward delivery dolly on the slide rail of being assembled in of workpiece between described frame two siding tracks.
Described hydraulic control circuit is made up of Hydraulic Station, integrated oil path block, hydraulic motor and corresponding fluid pressure line.
Because the gate-type walked frame that the present invention is provided with, adopt bilateral to utilize the automatic control drive pattern of driven by motor transmission device respectively, form the two-way automatic walking portal robot that automaticallyes switch soon, at a slow speed, so can successfully realize advancing fast, retreating of automatic washing and cleaning operation mesohigh water jet, advance at a slow speed, retreat, reach the purpose that covers whole surface to be cleaned.At the portal robot of walking automatically many solid mechanical hands and mobile machine hand are set respectively on one's body, high-pressure wash spray boom and shower nozzle have been installed on every manipulator, have been adopted the pressure of high pressure washer Long-distance Control regulator to regulate the expulsion pressure of control circuit control water under high pressure cleaning with long range shower nozzle.With the high-pressure wash spray boom on each fixed adjusting manipulator and the movable adjusting manipulator, respectively with the hydraulic control circuit of automatic control system in hydraulic motor output shaft be fixedly connected, utilize the manipulator of the controlled apery characteristic of movement locus, realize the swing of long range shower nozzle and the adjustment of hunting frequency, thereby finish the main task of cleaning and descaling.In addition, it is telescopic cleaning spray boom and shower nozzle, is easy to regulate the distance between shower nozzle and cleaning workpiece, and the range of water jet is cleaned within the range at effective stream, reaches the purpose of regulating the jet range.Therefore, the present invention integrates Machine Design and manufacturing technology, high-pressure injection cleaning technique, automated control technology, hydraulic control technology, can realize that high-pressure water jet cleans automatic on-line remote control and regulation washing and cleaning operation, significantly improve cleaning efficient, water jet covers the clean surface that is cleaned object 100%, thereby ensured the smooth implementation that is cleaned object subsequent detection project effectively, thoroughly eliminated safe hidden trouble, avoided the generation of serious accident.Particularly the present invention can be at poisonous and harmful, do not allow the hand-held spray boom of operating personnel to carry out using in the working environment of operation, obviously widen and improved operating environment, clean the problem that coverage rate is low, operating environment is limited and sputtering target is transferred apart from difficulty in the prior art thereby solved effectively.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is a kind of concrete structure schematic diagram of the present invention.
Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
Fig. 3 is that B among Fig. 1 is to view.
Fig. 4 is a kind of hydraulic schematic diagram of the present invention.
Fig. 5 is a kind of electrical schematic diagram of the present invention.
The specific embodiment
Describe the concrete structure of the present invention and the course of work in detail according to Fig. 1-5: this device comprises gate-type walked frame 6, the fixed adjusting manipulator 7 of assembling and movable adjusting manipulator 4, has the high-pressure wash spray boom 5 of shower nozzle, the high pressure water-jet cleaner 1 that is connected with shower nozzle and automatic control system thereof etc.
Wherein the specification of gate-type walked frame 6, model should be determined according to actual instructions for use.The both sides of frame 6 utilize the transmission device 16 of motor 27 drives to drive respectively along the roller 18 of track 20 walkings, move by the automatic controlling system motor.Because the bilateral of frame 6 adopts the automatic control drive pattern that utilizes motor 27 to drive transmission device 16 respectively, frame 6 can be walked by automatic bidirectional, and realize advancing fast, retreating, advance at a slow speed, retreat, so form the two-way gate-type walking robot that soon, automaticallyes switch at a slow speed.Reasonable disposition design and intelligent automatic control by this electromechanical integration make its operation more safe and reliable, to reach the cleaning performance of expection.
High-pressure wash spray boom 5 is separately positioned on the fixed adjusting manipulator 7 and movable adjusting manipulator 4 of frame 6 both sides.The shower nozzle of high-pressure wash spray boom 5, adopt water under high pressure to clean with long range shower nozzle, long range shower nozzle can be finished high-pressure water jet and clean automatic on-line remote control and regulation washing and cleaning operation, control the high pressure washer Long-distance Control regulator of this operation process, the patent No. that adopts inventor's design is 200310119176.0 patented product.Programmable Logic Controller PLC of its selected technology maturation and the general electrical equipments such as A.C. contactor, adjustable potentiometer, pressure transmitter, limit switch that turn to of selection are formed conventional electric control loop, successful solution the pressure of can't realizing that exists of existing high pressure water jet equipment regulate the technical barrier of Long-distance Control, have that antijamming capability is strong, pressure is regulated the control high reliability features.Use this device can realize effectively that high-pressure water jet cleans automatic on-line remote control and regulation washing and cleaning operation, significantly improves the clearance rate of cleaning efficiency and exposed surface dirt.The patent No. that above-mentioned water under high pressure cleaning adopts the inventor to design with long range shower nozzle is 200310119175.6 patented product.Though this long range shower nozzle is simple in structure, the jet energy is very big, and range is increased effectively.Detect by experiment and show: this shower nozzle is compared with existing other similar shower nozzle, and under with power high-pressure water jet situation, its range can increase twice, and range can reach more than 600 millimeters.Therefore, this long range shower nozzle is big to the impulsive force of surface to be cleaned, significantly improves cleaning performance.
Be arranged on the fixed adjusting manipulator 7 of frame 6 both sides and the specification and the quantity of movable adjusting manipulator 4, should determine according to the job requirements that is cleaned workpiece.High-pressure wash spray boom 5 on each manipulator is connected with hydraulic control circuit in the automatic control system respectively, and each high-pressure wash spray boom 5 is fixedly connected on respectively on the output shaft of the hydraulic motor 41 in the hydraulic control circuit.Rotation by control hydraulic motor 41 output shafts, the swing of long range shower nozzle of the high-pressure wash spray boom 5 on it and the adjustment of hunting frequency are fixed in realization, control the movement locus of long range shower nozzle, allow manipulator grip long range shower nozzle, finish the main task of cleaning and descaling.Distance between the stiff end of adjusting high-pressure wash spray boom 5 by manual operations and the long range shower nozzle can make the shower nozzle of high-pressure wash spray boom 5 flexible, is easy to regulate the distance of 15 of shower nozzle and cleaning workpieces, reaches the purpose of adjusting jet range.
The electric control loop of automatic control system, hydraulic control circuit communicate with operating desk 3 by connecting line, display screen on its operating desk 3 is connected with the camera 12 of the monitoring system that is fixed on frame 6 tops, by its relevant operation information that can be more reliable obtains to be cleaned workpiece 15 more accurately, sufficient foundation and information are provided for controlling cleaning process reasonably and accurately.Fixedly be cleaned workpiece 15 for convenient, between 6 liang of siding tracks 20 of frame, be provided with and deliver the forward and backward delivery dolly 28,22 on the slide rail 21 of being assembled in that is cleaned workpiece 15.
Hydraulic control circuit by Hydraulic Station 2, organize integrated oil path block (every group control a spray boom 5) and hydraulic motor 41 and fluid pressure line 10 etc. are formed more.Hydraulic Station 2 comprises compositions such as vane pump 33, motor 32, oil suction oil filter 34, check valve 35, switch 36, Pressure gauge 37, electromagnetic relief valve 43, oil return oil filter 44, fuel tank 45.Integrated oil path block comprises parts such as solenoid directional control valve 38, stack choke valve 39, check valve 40, overflow valve 42.Connecting line is made up of high-pressure water pipe 9, liquid-separating block, fluid pressure line 10, cable 24 etc., and utilizes cable duct 29, cable wire 25, support 13, pulley 14, suspension ring 26 to install and fix.The operator is sitting in just can finish high-pressure water jet cleaning automatic on-line remote control and regulation on the preceding chair 30 of operating desk.
Be arranged on the high-pressure wash spray boom 5 on the gate-type walked frame 6 in the steel construction cleaning shop 11 in the factory building 31, be connected with operating desk 3 by connecting line with hydraulic control circuit with the high pressure water-jet cleaner 1 of automatic control system.The water under high pressure of high pressure water-jet cleaner 1 output flows to water under high pressure by high-pressure water pipe 9 and cleans with long range shower nozzle, carries out washing and cleaning operation.Water under high pressure cleans with long range shower nozzle and is installed on the spray boom 5 of fixed adjusting manipulator 7 on the gate-type walked frame 6 and movable adjusting manipulator 4, by the Hydraulic Station driving, presses setpoint frequency and set angle reciprocally swinging.Gate-type walked frame 6 is under the control of operating desk 3, and motor 27 drives wheel 18 and realize the double speed advance and retreat on frame rail 20 by reductor 16 drive gear set 17.The operation of hydraulic control circuit is all controlled by the operating desk 3 of automatic control system with use, and the control button on the start-up operation platform 3 drives hydraulic motor 41 and rotates by the speed of setting, and drive high-pressure wash spray boom 5 is pressed the setpoint frequency swing.
During washing and cleaning operation, before will being cleaned workpiece 15 and being installed in, back delivery dolly 28, on 22, it is in place to push cleaning shop 11 after tightening up, adjust fixed adjusting manipulator 7, the range of the position of movable adjusting manipulator 4 and long range shower nozzle, start hydraulic power unit 2 and high pressure water-jet cleaner 1, shower nozzle on the high-pressure wash spray boom 5 is by setting orbiting motion, pressure is risen to rated operating pressure, start play button, 6 beginnings of gate-type walked frame are advanced at a slow speed, the high-pressure wash operation begins, after the high-pressure wash operation is finished, when frame 6 is gone to journey controller 19, automatically switch to fast and retreat, automatically return, frame 6 stops when returning to the journey controller 19 of original position, and washing and cleaning operation is finished automatically.During washing and cleaning operation, can monitor the washing and cleaning operation process by the camera 12 that is installed in the monitoring system on the operating desk 3 at any time.The waste liquid that produces in the cleaning process enters cesspool by waste liquid accumulator tank 23, reuses through behind the filtration, purification.
The automatic control system of intelligent washing and cleaning operation, as shown in Figure 5, form by PLC (Programmable Logic Controller), A/D (carrying out module), QX (cleaning machine reduced voltage starter), TY (pressure regulation positive and negative rotating controller for motor), XC (double-speed motor controller), P (pressure transmitter), DP electronic components commonly used such as (pressure display instrument tables).Because automatic control system of the present invention adopted the PLC control technology, so can realize intelligent washing and cleaning operation, its cleaning efficiency height, cleaning performance be good, greatly reduce working strength of workers.In addition, owing to adopt pure water to carry out job execution, can not pollute environment, the water after the use can reuse after treatment, thereby can reach the purpose of water-saving and environmental protection.
During washing and cleaning operation, press " startup " button KB0, be input to PLC through the input X0 of PLC, cleaning machine 1 must be at Light Condition simultaneously, and promptly KB4 is effective, and then PLC holds output signal at Y0, starts QX, and QX controls cleaning machine 1 again and starts.Then, PLC starts relay K D102, KD101 and the relay indicating light L102 thereof of Hydraulic Station 2 in Y2, Y3 end output signal.KD102, KD101 make Hydraulic Station 2 enter duty.PLC in Y4 end output signal, starts solenoid directional control valve KD103 after time-delay a period of time, make manipulator begin swing.PLC reads in the magnitude of voltage (changing into corresponding force value in PLC) that adjustable potentiometer R1 circuit is set by V0, the C0 of A/D module, the actual pressure value that cleaning machine 1 produces records through pressure transmitter P, on DP, show, and be input to C1, the I1 of A/D module simultaneously by the 4-20mA signal, be read among the PLC.After the PLC calculation process, by Y5, Y5-COM and Y6, Y6-COM end output signal, control TY, control the rotation direction of pressure regulation motor, reach the requirement of pressurization or decompression, satisfy the pressure of setting.KB5 is fully loaded limit switch, reaches capacity at pressure and sends signal when requiring and enter PLC through the input X5 of PLC, and PLC just no longer gives Y6, Y6-COM end output pressurized control signal.KB4 is unloaded limit switch, when pressure reaches zero, sends signal and enters PLC through the input X4 of PLC, and PLC just no longer gives Y5, Y5-COM end output decompression control signal.After meeting the requirements of pressure, PLC is by Y7, Y7-COM and Y9, Y9-COM end output signal, control XC, make walked frame 6 advance, advance to limit-switch positions, when promptly KB1 is effective in mode at a slow speed, signal is input to PLC through X1, PLC stops by Y7, Y7-COM and Y9, Y9-COM end output signal XC being quit work, and walked frame 6 halts.Again by Y8, Y-COM and Y10, Y10-COM end output signal, control XC, make walked frame 6 retreat in mode fast, spacing position up to original position, be KB2 when effective, signal is input to PLC through X2, and PLC stops by Y8, Y-COM and Y10, Y10-COM end output signal, XC is quit work, and walked frame 6 halts.In the process of advancing, if other situations take place, when requiring to return the home position at once, can be by " returning " button KB10, be input to PLC through X10, by Y8, Y-COM and Y10, Y10-COM end output signal, control XC, make walking mechanism retreat, up to the spacing position of original position in mode fast.If the course of work runs into emergency, need stop all whens work at once, can by " parking " button KB3, be input to PLC through X3, PLC controls each system and quits work.
Claims (4)
1, a kind of oil field operation equipment automatic flushing device, comprise frame, assemble high-pressure wash spray boom and shower nozzle on it, high pressure water-jet cleaner that is connected with shower nozzle and automatic control system, it is characterized in that: frame adopts the gate-type walked frame, the frame both sides utilize the actuator drives of driven by motor respectively along the roller of track travel, fixed adjusting manipulator and movable adjusting manipulator are set respectively in the frame both sides, high-pressure wash spray boom and shower nozzle are installed on manipulator, the water under high pressure of high pressure washer output is transported to water under high pressure by Long-distance Control regulator and pressure duct and cleans with long range shower nozzle, and realize the remote control and regulation of pressure by the Long-distance Control regulator, high-pressure wash spray boom on fixed adjusting manipulator and the movable adjusting manipulator, respectively with the hydraulic control circuit of automatic control system in hydraulic motor output shaft be fixedly connected, realize the reciprocally swinging of high-pressure wash spray boom and the adjusting of hunting frequency.
2, oil field operation equipment automatic flushing device according to claim 1 is characterized in that: the display screen of described automatic control system is connected with the camera of the monitoring system that is fixed on the frame top.
3, oil field operation equipment automatic flushing device according to claim 1 is characterized in that: have delivery to be cleaned the forward and backward delivery dolly on the slide rail of being assembled in of workpiece between described frame two siding tracks.
4, oil field operation equipment automatic flushing device according to claim 1 is characterized in that: described hydraulic control circuit is made up of Hydraulic Station, integrated oil path block, hydraulic motor and corresponding fluid pressure line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410050757 CN1261235C (en) | 2004-10-29 | 2004-10-29 | Automatic flushing device for oil field working equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410050757 CN1261235C (en) | 2004-10-29 | 2004-10-29 | Automatic flushing device for oil field working equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1603014A true CN1603014A (en) | 2005-04-06 |
| CN1261235C CN1261235C (en) | 2006-06-28 |
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ID=34665933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410050757 Expired - Fee Related CN1261235C (en) | 2004-10-29 | 2004-10-29 | Automatic flushing device for oil field working equipment |
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| Country | Link |
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| CN (1) | CN1261235C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433226A (en) * | 2013-08-23 | 2013-12-11 | 山西汾西矿业（集团）有限责任公司设备修造厂 | Coal mine hydraulic support high-pressure water jet cleaning robot |
| CN103658080A (en) * | 2012-09-18 | 2014-03-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | High-pressure water jet cleaning center |
| CN105728376A (en) * | 2016-03-24 | 2016-07-06 | 魏会芳 | Novel full-automatic adjustable cleaning device |
| CN108262291A (en) * | 2017-12-30 | 2018-07-10 | 南京超华电子信息科技有限公司 | A kind of automatically-controlled door door lock cleaning device and its method |
| CN111229683A (en) * | 2019-12-24 | 2020-06-05 | 合肥微睿光电科技有限公司 | High-pressure cleaning device for high-temperature gas-phase-inversion application of screen |
| CN113714219A (en) * | 2021-09-07 | 2021-11-30 | 东北石油大学 | Crude oil pipeline cleaning equipment and pipeline cleaning method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221026B (en) * | 2007-12-19 | 2010-06-16 | 褚兴全 | On-line automatic cleaning equipment of condenser |
-
2004
- 2004-10-29 CN CN 200410050757 patent/CN1261235C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658080A (en) * | 2012-09-18 | 2014-03-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | High-pressure water jet cleaning center |
| CN103658080B (en) * | 2012-09-18 | 2016-04-27 | 南车戚墅堰机车车辆工艺研究所有限公司 | Cleaning by High Pressure Water Jet center |
| CN103433226A (en) * | 2013-08-23 | 2013-12-11 | 山西汾西矿业（集团）有限责任公司设备修造厂 | Coal mine hydraulic support high-pressure water jet cleaning robot |
| CN103433226B (en) * | 2013-08-23 | 2015-09-16 | 山西汾西矿业（集团）有限责任公司设备修造厂 | Coal mine hydraulic supporting high pressure water-jet cleaner device people |
| CN105728376A (en) * | 2016-03-24 | 2016-07-06 | 魏会芳 | Novel full-automatic adjustable cleaning device |
| CN105728376B (en) * | 2016-03-24 | 2017-11-24 | 盐城市祥昇农业科技有限公司 | A kind of full-automatic adjustable cleaning equipment |
| CN108262291A (en) * | 2017-12-30 | 2018-07-10 | 南京超华电子信息科技有限公司 | A kind of automatically-controlled door door lock cleaning device and its method |
| CN111229683A (en) * | 2019-12-24 | 2020-06-05 | 合肥微睿光电科技有限公司 | High-pressure cleaning device for high-temperature gas-phase-inversion application of screen |
| CN111229683B (en) * | 2019-12-24 | 2023-08-08 | 合肥微睿光电科技有限公司 | High-pressure cleaning device for high-temperature gas-phase reaction of screen |
| CN113714219A (en) * | 2021-09-07 | 2021-11-30 | 东北石油大学 | Crude oil pipeline cleaning equipment and pipeline cleaning method thereof |
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| Publication number | Publication date |
|---|---|
| CN1261235C (en) | 2006-06-28 |
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