CN104404992A - Multifunctional high-pressure water jet working vehicle - Google Patents
Multifunctional high-pressure water jet working vehicle Download PDFInfo
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- CN104404992A CN104404992A CN201410590619.2A CN201410590619A CN104404992A CN 104404992 A CN104404992 A CN 104404992A CN 201410590619 A CN201410590619 A CN 201410590619A CN 104404992 A CN104404992 A CN 104404992A
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Abstract
A multifunctional high-pressure water jet working vehicle comprises a chassis and a working device, a purification system and a pressurizing and heating device which are installed on the chassis; the working device comprises an operating arm which is used for moving and positioning and a jet pipe and a recycling pipe which are respectively installed on the operating arm; the front end of the jet pipe is connected with a high-pressure spray nozzle and the rear end is connected with the pressurizing and heating device; the front end of the recycling pipe is connected with a suction nozzle and the rear end of the recycling pipe is connected with a vacuum absorption pump; the purification system comprises a main water storage tank, a hydrocyclone separation device and a water storage tank after purification; the main water storage tank, the hydrocyclone separation device and the water storage tank after purification are sequentially connected; the main water storage tank is connected with the vacuum absorption pump; the water storage tank after purification is connected with the pressurizing and heating device; the pressurizing and heating device comprises a high-pressure plunger pump which is connected with the purification system, a pressurizing device and a heater which are connected with the purification system; an outlet end of the pressurizing and heating device is connected with the jet pipe. The multifunctional high-pressure water jet working vehicle can achieve work such as pipe ditch excavation, construction wall surface cleaning and concrete breaking and recycle waste water generated by work, and filter, separate and recycle the waste water during the construction process.
Description
Technical field
The present invention relates to and to abolish for the excavation of pipe trench, concrete and the equipment of the operation such as building and mechanized equipment surface clean, specifically a kind of multifunctional high pressure water jet working vehicle.
Background technology
Along with the progress of industry, increasing pipeline operations has needed.By the end of the year 2012, China's natural gas main conduit total kilometrage about 5.5 ten thousand km.Along with the growth of pipeline service life, China's water-supply-pipe
There is problems such as missing, aging in road.The construction operation such as construction, maintenance of pipeline generally adopts excavator to construct.When gas distributing system, chemical plant adopt excavator to excavate pipe trench, often occur that buried pipeline is dug disconnected situation and occurs, occur the danger such as leakage, blast.
Meanwhile, use rigid pavement for many years to occur the problem such as fracture, depression, need to carry out to reinforce, the operation such as renovation.Traditional concrete disintegrating technology, as pneumatic pick, vibrating hammer, explosion etc., also exists the drawbacks such as efficiency is low, damage envelope is large, and construction quality is difficult to control, and easily causes the cut-out of original concrete reinforcement and loosens.
The building such as building, bridge and plant equipment surface need regularly to carry out prune job, usually adopt hand-held giant to carry out washing and cleaning operation, then manually use the instruments such as steel brush the spot being difficult to remove to be brushed.Operating efficiency is low, and operation water supply volume is large.
Domestic patent has also been mentioned to water cleaning work vehicle, as utility model patent " urban road curb and road kerb cleaning Vehicle " (ZL200620051333.8) only carries out the washing and cleaning operation of road curb, function is comparatively single, can not be used for the construction operations such as pipe trench excavates, concrete is abolished.
Summary of the invention
Object of the present invention is exactly for the deficiencies in the prior art, provides a kind of rational in infrastructure, easy to operate, multifunctional high pressure water jet working vehicle that efficiency is high and multiple functional.
Technical scheme of the present invention is: the apparatus for work, cleaning system and the pressurized, heated device that comprise chassis vehicle and install on a chassis; Described apparatus for work comprises for movement and the motion arm of locating and distinguishes playpipe mounted thereto and recovery tube, the front end of described playpipe connects high pressure nozzle, rear end connects pressurized, heated device, and the front end of described recovery tube connects suction nozzle, rear end connects vacuum absorption pump; Described cleaning system comprises the main storage tank, cyclone separation device and the rear storage tank of purification that connect successively, described main storage tank is connected with described vacuum absorption pump, after described purification, storage tank is connected with described pressurized, heated device, described pressurized, heated device comprises high-pressure plunger pump, pressurizer and heater for being connected with cleaning system, and the port of export of described pressurized, heated device connects described playpipe.
Such scheme can more preferably:
Described cleaning system comprises the main water tank, one-level screw pump, primary cyclone, one-level water tank, secondary screw pump, Multi-stage spiral device eliminator and the secondary water tank that connect successively, and described Multi-stage spiral device eliminator is in series successively by multiple cyclone separators; Described chassis vehicle is also provided with blowdown tank, and described primary cyclone is all connected with blowdown tank by inclined tube with the tail pipe of Multi-stage spiral device eliminator.Cyclone separator is common apparatus.Cyclone separator is for separating of removing the materials such as coarse granule silt particle heavier in sewage, sometimes also for slurry dewatering, its operating principle: water depended on pressure or gravity are tangentially entered by structure top, under centrifugal action, coarse particles material is thrown to wall and is rotated and discharged together with the dope formed downwards.Less particulate matter rotates to a certain degree and discharges with upper bumpy flow.
The casing side of described blowdown tank is provided with chamber door, inside is provided with Tui Dou mechanism, described Tui Dou mechanism comprises the hydraulic jack and push rod that are hinged on end face on casing respectively, the piston rod of described hydraulic jack and the middle part of push rod hinged, the front end linking springs pipe of described push rod, the front end chain connection of described bourdon tube pushes away bucket.
Be provided with filter screen in described main water tank, the progression of described Multi-stage spiral device eliminator is 2 ~ 4 grades.Progression also can adjust according to water quality requirement.
Described pressurized, heated device comprises high-pressure plunger pump, pressurizer I, pressurizer II and heater; Described pressurizer I, pressurizer II and heater are connected in parallel on the outlet line of high-pressure plunger pump respectively by switch valve, can be controlled the flow direction of water by the switch valve on manifold.The end of described high-pressure plunger pump outlet line connects playpipe.
Heater of the present invention is existing common apparatus.Be used for making heat be delivered to cold fluid from hot fluid, with the device of the technological requirement of satisfied regulation.The pattern that movable tube sheets heat exchanger, fixed tube-sheet exchanger, U-shaped tubular sheet heat exchanger, plate exchanger etc. are different can be adopted.
Pressurizer of the present invention is existing common apparatus.Operating principle: the principle being multiplied by compression area according to pressure=pressure, be used for large piston with less masterpiece and promote valve piston motion, produce energetically by little power, can produce high-pressure water, pressure can reach 50 ~ 150MPa.By pressurizer I, pressurizer II, system can obtain the water under high pressure of different pressures grade, depends primarily on the cylinder diameter ratio of pressurizer.
Described playpipe is high-pressure rubber pipe, and described high pressure nozzle is made up of nozzle carrier, nozzle body and locking nut, can obtain different spray pattern, obtaining the High-Pressure Water of multiple flow velocity by changing different nozzle bodies; Also can change a whole set of high pressure nozzle is rotary nozzle, obtains multiple spray pattern.
Wherein, suction nozzle and high pressure nozzle are arranged on the front end of motion arm, and suction nozzle is arranged on around high pressure nozzle, are convenient to the recovery that operation produces sewage.Motion arm can be controlled by the operation part in driver's cabin, guides suction nozzle and high pressure nozzle to move to relevant position.
Power on described chassis vehicle needed for each device is provided by the motor of chassis vehicle or the assistant engine of another dress; Heat needed for described heater is completed by fuel Heating.
The operations such as multifunctional high pressure water jet working vehicle of the present invention can carry out that pipe trench excavation, building wall cleaning and concrete are abolished; Further, the sewage that operation can be produced in work progress reclaims, and carries out isolated by filtration and recycles.
Accompanying drawing explanation
Fig. 1 multifunctional high pressure water jet working vehicle general structure schematic diagram
Fig. 2 apparatus for work structural representation
Fig. 3 high pressure nozzle structural representation
Fig. 4 cleaning system structural representation
Fig. 5 pressurized, heated apparatus structure flow chart
Fig. 6 blowdown tank structural representation
Fig. 7 multifunctional high pressure water jet working vehicle construction operation view
In figure: apparatus for work 1, suction nozzle 11, high pressure nozzle 12, nozzle carrier 122, locking nut 123, nozzle body 124, vacuum recovery pump 13, high-pressure rubber pipe 14, motion arm 15, recovery tube 16; Cleaning system 2, main storage tank 21, one-level screw pump 22, primary cyclone 23, one-level storage tank 24, secondary screw pump 25, multistage cyclonic fluid separator 26, secondary storage tank 27, outlet pipe 28, inclined tube 29; Pressurized, heated device 3, high-pressure plunger pump 31, switch valve I 32, pressurizer I 33, heater 34, switch valve II 35, switch valve III 36, switch valve IV 37, pressurizer II 38, switch valve V 39; Chassis vehicle 4; Blowdown tank 5; Casing 51, chamber door 52, oil cylinder 53, push rod 54, pushes away bucket 55, bourdon tube 56.
Detailed description of the invention
Now the present invention is further illustrated by reference to the accompanying drawings.
Composition graphs 1 is multifunctional high pressure water jet working vehicle provided by the invention.It comprises apparatus for work 1, cleaning system 2, pressurized, heated device 3, chassis vehicle 4 and blowdown tank 5 etc., and said apparatus is arranged on chassis vehicle 4, and the operation can carrying out package unit in the driver's cabin of chassis vehicle controls.The operation of described apparatus for work 1, cleaning system 2, pressurized, heated device 3 etc. all adopts hydraulic means to drive, and required drive power takeoff takes from the motor of chassis vehicle or the assistant engine of another dress.
Composition graphs 2, is the apparatus for work 1 of multifunctional high pressure water jet working vehicle of the present invention, is made up of suction nozzle 11, high pressure nozzle 12, vacuum absorption pump 13, high-pressure rubber pipe 14, motion arm 15 and recovery tube 16 etc.Have high-pressure injection operation concurrently and sewage reclaims two kinds of functions.
Wherein, sewage recovery funtion part is made up of suction nozzle 11, vacuum absorption pump 13 and recovery tube 16.There is provided negative pressure by vacuum absorption pump 13, the sewage near suction nozzle 11 is drawn, and by the recovery tube 16 be arranged on motion arm 15, sewage is recovered in main storage tank 21.The outlet opening of vacuum absorption pump 13 is provided with filter screen, the impurity thing reclaimed in sewage can be carried out preliminary filtration.As shown in the figure, suction nozzle 11 adopts sector structure, is distributed in high pressure nozzle 12 around.
Wherein, high-pressure injection operation function part is made up of high pressure nozzle 12 and high-pressure rubber pipe 14.Water under high pressure is transported to high pressure nozzle 12 by high-pressure rubber pipe 51 by pressurized, heated device, and under the control of motion arm 15, high pressure nozzle moves to construction location.
Composition graphs 3, is high pressure nozzle structural representation, is made up of nozzle carrier 122, high pressure nozzle 124 and locking nut 123.The structure of high pressure nozzle is convenient for changing dissimilar nozzle, to adapt to different construction requirements.
Suction nozzle 11 and high pressure nozzle 12 are arranged on motion arm 15, moved and locate by motion arm 15.In order to reclaim the sewage that operation produces in time, suction nozzle 11 can be made into fan-shaped or triangular structure, is arranged on high pressure nozzle 12 around.
Composition graphs 4 is the cleaning system 2 of multifunctional high pressure water jet working vehicle of the present invention.Cleaning system 2 is made up of main storage tank 21, one-level screw pump 22, primary cyclone 23, one-level storage tank 24, secondary screw pump 25, multistage cyclonic fluid separator 26, secondary storage tank 27, outlet pipe 28, inclined tube 29 etc.Sewage reclaims by the sewage recovery section in apparatus for work 1, is stored in main storage tank 21 after strainer filtering.The one-level screw pump 22 being arranged on main storage tank by sewage transport to primary cyclone 23.In primary cyclone 23, swiftly flowing sewage is owing to being subject to the effect of centrifugal force, and solid impurity is separated to surrounding, enters in inclined tube 29 along tail pipe, and the sewage of removing impurity centrally pipe flows into one-level storage tank 24 and stores.Water in water tank is transported to multistage cyclonic fluid separator 26 by the secondary screw pump 25 be arranged in one-level storage tank, and the operating principle of multistage cyclonic fluid separator is the same with the operating principle of primary cyclone.The progression of multistage cyclonic fluid separator can be changed, to obtain satisfactory water quality.Be stored in secondary storage tank 27 through the isolated water of multistage cyclonic fluid separator.Primary cyclone 23 is separated the solid impurity produced and falls into inclined tube 29 with multistage cyclonic fluid separator 26, be pooled in blowdown tank 5.
Composition graphs 5 is the pressurized, heated device 3 of multifunctional high pressure water jet working vehicle of the present invention.Pressurized, heated device 3 is primarily of compositions such as high-pressure plunger pump 31, switch valve I 32, pressurizer I 33, heater 34, switch valve II 35, switch valve III 36 and switch valve IV 37, pressurizer II 38 and switch valves V 39.Sewage, after rotational flow separation, inputs high-pressure plunger pump 31.According to requirement of engineering, controlled by switch valve, water under high pressure can through following several flow process, to meet the needs of job site: (one) normal temperature high voltage water (within 30MPa), when switch valve IV 37 and switch valve II 35 are opened, when other valve cuts out, water under high pressure can be delivered directly to the high pressure nozzle of apparatus for work; (2) normal-temperature superhigh pressure water (30 ~ 50MPa), when switch valve I 32 and switch valve II 35 are opened, when other valve cuts out, water under high pressure becomes high-pressure water after pressurizer I pressurizes, and is transported to the high pressure nozzle of apparatus for work; (3) normal-temperature superhigh pressure water (50 ~ 150MPa), when switch valve II 35 and switch valve V 39 are opened, when other valve cuts out, water under high pressure becomes high-pressure water after pressurizer II pressurizes, and is transported to the high pressure nozzle of apparatus for work; (4) heating high-pressure water (within 10MPa, 80 DEG C), when switch valve IV 37 and switch valve III 36 are opened, when other valve cuts out, water under high pressure, after heater 34 heats, is transported to the high pressure nozzle of apparatus for work.
In addition, the pressure limit that a kind of multifunctional high pressure water jet of patent of the present invention car provides can adjust by changing the equipment such as pressurizer, is not limited to above-mentioned several force value.Described heating-up temperature also can adjust.
Composition graphs 6, described blowdown tank 5.Chamber door 52 can be opened and closed by hydraulic cylinder.The Tui Dou mechanism of blowdown is installed in casing 51.Tui Dou mechanism by oil cylinder 53, push rod 54, bourdon tube 56, push away the part such as bucket 55 and form.Wherein push rod 54 and bourdon tube 56 link together, and the front end hinge-coupled of bourdon tube 56 pushes away bucket 55, due to the thrust of bourdon tube 56, push away bucket 55 all the time near on tank wall.The ear seat chain connection that oil cylinder 53 tailstock and casing 51 push up, the piston rod of oil cylinder 53 and the interstitial hole chain connection of push rod 54.After work a period of time, push away bucket 55 by oil cylinder 53 and move forward, impurity in case is discharged.
Embodiment one: (hyperbaric heating water, 10MPa, 80 DEG C)
The greasy dirt washing and cleaning operation of equipment, for the cleaning of the greasy dirt on equipment component, grease and the greasy dirt cleaning of engineering machinery, can adopt multifunctional high pressure water jet working vehicle of the present invention to complete.Because greasy dirt, grease can soften by the hot water of 85 DEG C, reduce the adhesion stress of itself and matrix surface, then examining high-pressure water jet can peel off greasy dirt, grease from matrix surface, need not add cleaning agent and can obtain good cleaning performance.By heater, water under high pressure can be heated.Easily abolish after high pressure water impact after frozen soil layer is heated.
When adopting multifunctional high pressure water jet working vehicle of the present invention to carry out the greasy dirt washing and cleaning operation of equipment component, foregoing apparatus for work, cleaning system are all pressed normal mode and are run.In the running of pressurized, heated device, open valve III 36 and valve IV 37, close other valve, the water under high pressure after plunger displacement pump is pressurizeed heats through heater 34, is transported to the high pressure nozzle of apparatus for work.
On the equipment easily adhering to cleaning system due to greasy dirt and manifold, equipment is caused normally not use.Therefore, in the cleaning process of greasy dirt, the sewage that operation produces is not reclaimed.Can be realized by the mode of closing vacuum pump and high pressure nozzle.
Embodiment two: (high-pressure water, 35MPa, 20 DEG C)
The surface clean operation of the buildings such as building, bridge, culvert.In daily municipal operation, the surface clean of building accounts for very large ratio, and due to building surfaces such as bridge culverts, to comprise arc surface, hollow etc. irregularly shaped, and the washing and cleaning operation on surface is more difficult.Multifunctional high pressure water jet working vehicle of the present invention can effectively complete corresponding job task.
Cleaning by High Pressure Water Jet, the kinetic energy of high-pressure water jet is mainly utilized to come impacted object surface scale, applicator and oxide, reach the effect peeled off and remove, it take water as medium, by high-pressure plunger pump, water is forced into 30 ~ 50MPa, then by circumferentially arranging nozzle, high pressure water jets is mapped to body surface, completes cleaning.
In the running of pressurized, heated device, open valve II 35 and valve IV 37, close other valve, do not run pressurizer and heater 34.In operation process, shower nozzle can be elevated to desired height and carry out action as requested by motion arm.Surrounding due to high pressure nozzle is provided with fan-shaped suction nozzle, and the sewage that operation can be produced is regained.Compared with other existing high-pressure water cleaning device, multifunctional high pressure water jet working vehicle of the present invention has the features such as the workload of saving water source and reduce secondary removing.
Embodiment three: (high-pressure water, 100MPa, 20 DEG C)
Concrete is abolished in operation, take pure water as working media, and the pressure of power set is 100 ~ 150MPa, utilizes small hole injection principle, the pressure energy of high-pressure water is converted to the high speed kinetic energy of 300 ~ 800m/s, for abolishing of the rigid structure things such as concrete.When adopting multifunctional high pressure water jet working vehicle of the present invention to carry out relevant operation, need configuration elevated pressurization device to carry out supercharging, need to change corresponding nozzle body simultaneously.
When adopting multifunctional high pressure water jet working vehicle of the present invention to carry out operation, foregoing apparatus for work, cleaning system are carried out according to normal mode.In the running of pressurized, heated device, open valve I 32 and valve II 35, close other valve.Existing hydraulic pressure can increase by pressurizer II 33, according to the operating principle of pressurizer, after hydraulic pressure increases, and the corresponding reduction of discharge.High pressure is abolished in operation, needs to change corresponding nozzle body, to adapt to the water source of high-pressure low-flow.
These are only that multifunctional high pressure water jet working vehicle of the present invention excavates for pipe trench, concrete abolishes, several embodiments of building surface cleaning, the present invention is not limited to the device combination of work that above-described embodiment completes and employing.
Advantage of the present invention:
(1) suction nozzle of the apparatus for work of multifunctional high pressure water jet working vehicle of the present invention and cleaning system operation can be produced sewage recovery, isolated by filtration, recycling.Have water-saving advantage, under the water tank of same volume, the effective time of the present invention is longer.
(2) the pressurized, heated device of multifunctional high pressure water jet working vehicle of the present invention is configured with pressurizer and heater, can carry out supercharging and the heating of high-pressure water jet operation water according to construction requirement.
(3) the isolated solid impurity of high-pressure cyclone separator of multifunctional high pressure water jet working vehicle of the present invention enters inclined tube along tail pipe, and is pooled in blowdown tank.When needing to get rid of the solid impurity in case, solid impurity is released by the bucket that pushes away in blowdown tank automatically.
(4) suction nozzle of the apparatus for work of multifunctional high pressure water jet working vehicle of the present invention and high pressure nozzle share a motion arm, and suction nozzle is arranged on around high pressure nozzle, and the sewage being convenient to produce in hydraulic spray operation process reclaims.
For those skilled in the art, under the premise without departing from the principles of the invention, likely make some improvements and modifications to partial structurtes, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a multifunctional high pressure water jet working vehicle, is characterized in that: the apparatus for work, cleaning system and the pressurized, heated device that comprise chassis vehicle and install on a chassis; Described apparatus for work comprises for movement and the motion arm of locating and distinguishes playpipe mounted thereto and recovery tube, the front end of described playpipe connects high pressure nozzle, rear end connects pressurized, heated device, and the front end of described recovery tube connects suction nozzle, rear end connects vacuum absorption pump; Described cleaning system comprises the main storage tank, cyclone separation device and the rear storage tank of purification that connect successively, described main storage tank is connected with described vacuum absorption pump, after described purification, storage tank is connected with described pressurized, heated device, described pressurized, heated device comprises high-pressure plunger pump, pressurizer and heater for being connected with cleaning system, and the port of export of described pressurized, heated device connects described playpipe.
2. multifunctional high pressure water jet working vehicle according to claim 1, it is characterized in that: described cleaning system comprises the main water tank, one-level screw pump, primary cyclone, one-level water tank, secondary screw pump, Multi-stage spiral device eliminator and the secondary water tank that connect successively, described Multi-stage spiral device eliminator is in series successively by multiple cyclone separators; Described chassis vehicle is also provided with blowdown tank, and described primary cyclone is all connected with blowdown tank by inclined tube with the tail pipe of Multi-stage spiral device eliminator.
3. multifunctional high pressure water jet working vehicle according to claim 2, it is characterized in that: the casing side of described blowdown tank is provided with chamber door, inside is provided with Tui Dou mechanism, described Tui Dou mechanism comprises the hydraulic jack and push rod that are hinged on end face on casing respectively, the piston rod of described hydraulic jack and the middle part of push rod hinged, the front end linking springs pipe of described push rod, the front end chain connection of described bourdon tube pushes away bucket.
4. multifunctional high pressure water jet working vehicle according to claim 2, is characterized in that: be provided with filter screen in described main water tank, the progression of described Multi-stage spiral device eliminator is 2 ~ 4 grades.
5. multifunctional high pressure water jet working vehicle according to claim 1, is characterized in that: described pressurized, heated device comprises high-pressure plunger pump, pressurizer I, pressurizer II and heater; Described pressurizer I, pressurizer II and heater are connected in parallel on the outlet line of high-pressure plunger pump respectively by switch valve, and the end of described high-pressure plunger pump outlet line connects playpipe.
6. multifunctional high pressure water jet working vehicle according to claim 5, is characterized in that: described heater is movable tube sheets heat exchanger, fixed tube-sheet exchanger, U-shaped tubular sheet heat exchanger or plate exchanger.
7. multifunctional high pressure water jet working vehicle according to claim 1, is characterized in that: described playpipe is high-pressure rubber pipe, and described high pressure nozzle is made up of nozzle carrier, nozzle body and locking nut; Described suction nozzle is arranged on around high pressure nozzle.
8. according to the arbitrary described multifunctional high pressure water jet working vehicle of claim 1-7, it is characterized in that: the power on described chassis vehicle needed for each device is provided by the motor of chassis vehicle or the assistant engine of another dress; Heat needed for described heater is completed by fuel Heating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410590619.2A CN104404992B (en) | 2014-10-29 | 2014-10-29 | A kind of multifunctional high pressure water jet Operation Van |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410590619.2A CN104404992B (en) | 2014-10-29 | 2014-10-29 | A kind of multifunctional high pressure water jet Operation Van |
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| CN104404992A true CN104404992A (en) | 2015-03-11 |
| CN104404992B CN104404992B (en) | 2016-11-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107059972A (en) * | 2017-04-20 | 2017-08-18 | 广东和发输变电安装有限公司 | A kind of hydraulic pressure Work machine people system and management method |
| CN107186721A (en) * | 2017-07-21 | 2017-09-22 | 江苏集萃智能制造技术研究所有限公司 | A kind of water jet intelligent robot |
| CN110565497A (en) * | 2019-09-12 | 2019-12-13 | 南京富技腾精密机械有限公司 | High-pressure cleaning and slag liquid recovery device with cart |
| CN112813898A (en) * | 2020-11-19 | 2021-05-18 | 中国人民解放军96782部队 | Soil rock hair base clearance platform truck |
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| CN204199353U (en) * | 2014-10-29 | 2015-03-11 | 胜利油田高原石油装备有限责任公司 | A kind of multifunctional high pressure water jet working vehicle |
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| CN1519434A (en) * | 2003-01-26 | 2004-08-11 | 姚实现 | New type versatile sanitation vehicle, versatile cars, excavator, and mechanical arm |
| CN103568919A (en) * | 2013-06-17 | 2014-02-12 | 宁波杰马克节能环保科技有限公司 | Multifunctional combined suctioning and discharging vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107059972A (en) * | 2017-04-20 | 2017-08-18 | 广东和发输变电安装有限公司 | A kind of hydraulic pressure Work machine people system and management method |
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| CN110565497A (en) * | 2019-09-12 | 2019-12-13 | 南京富技腾精密机械有限公司 | High-pressure cleaning and slag liquid recovery device with cart |
| CN112813898A (en) * | 2020-11-19 | 2021-05-18 | 中国人民解放军96782部队 | Soil rock hair base clearance platform truck |
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| CN104404992B (en) | 2016-11-23 |
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Effective date of registration: 20210113 Address after: No.171 Fenhe Road, Dongying District, Dongying City, Shandong Province 257091 Patentee after: Shandong Plateau oil and gas equipment Co.,Ltd. Address before: 257091 No.232, Nanyi Road, Dongying District, Dongying City, Shandong Province Patentee before: SHENGLI OILFIELD HIGHLAND PETROLEUM EQUIPMENT Co.,Ltd. |
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