CN110258484B - Oil leakage emergency treatment device for oil tanker and clearing method thereof - Google Patents
Oil leakage emergency treatment device for oil tanker and clearing method thereof Download PDFInfo
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- CN110258484B CN110258484B CN201910542800.9A CN201910542800A CN110258484B CN 110258484 B CN110258484 B CN 110258484B CN 201910542800 A CN201910542800 A CN 201910542800A CN 110258484 B CN110258484 B CN 110258484B
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- 238000000034 method Methods 0.000 title claims description 13
- 238000011084 recovery Methods 0.000 claims abstract description 41
- 238000010521 absorption reaction Methods 0.000 claims abstract description 40
- 238000005188 flotation Methods 0.000 claims abstract description 8
- 238000000151 deposition Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 235000019198 oils Nutrition 0.000 claims description 200
- 238000003860 storage Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000007667 floating Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000003305 oil spill Substances 0.000 claims description 4
- 235000019476 oil-water mixture Nutrition 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims 1
- 238000003892 spreading Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000011218 segmentation Effects 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 155
- 230000018109 developmental process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
- E02B15/101—Means floating loosely on the water absorbing the oil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
- E02B15/106—Overflow skimmers with suction heads; suction heads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Removal Of Floating Material (AREA)
Abstract
The utility model provides an oil leak emergency treatment device for oil tanker, includes oil tanker and oil absorption structure, its characterized in that, install the hoisting accessory who is used for receiving and releasing the oil absorption structure on the oil tanker, the oil absorption structure is including being circular shape flotation tank structure, the bottom of flotation tank structure is equipped with bearing pedestal, middle level and is equipped with the case of depositing, the upper strata that are used for depositing the segmentation area is equipped with the oil collection box, wherein: the bottom of the oil recovery tank is also provided with a sealing cover, and the center of the oil recovery tank is provided with a connecting pipe; the invention has the beneficial effects that: the invention utilizes reasonable structural design to control the leaked oil of the oil tanker in a certain area in the first time, thereby preventing the leaked oil from further spreading, simultaneously reducing the space and recovering the leaked oil at the same time, having high speed, effectively reducing pollution, increasing the recovery efficiency and being suitable for popularization and use.
Description
Technical Field
The invention relates to an oil leakage emergency treatment device for an oil tanker and a clearing method thereof, and belongs to the technical field of ocean engineering.
Background
With the scientific progress, the development and utilization of marine oil resources become the inevitable choice for future economic development, the offshore oil exploitation activity is more and more frequent, and the offshore oil transportation is more and more active. However, the offshore development of oil is really a high-risk industry, but oil companies often ignore due safety measures. Once major oil leakage occurs, not only the mining company faces huge economic loss, but also the ecological environment of the bay faces a disaster.
Like CN207553065U discloses the utility model provides a marine oil spilling dross recovery unit belongs to marine scrubbing equipment technical field. It has solved the poor problem of current marine oil spilling dross recovery unit continuity of operation ability. This marine oil spilling dross recovery unit, including base, oil tank, dross recoverer and the hydraulic motor that has buoyancy, be provided with the hydro-cylinder on the base, the slip is equipped with the piston in the hydro-cylinder, this piston separates into two oil pockets with the hydro-cylinder inner chamber, the impeller has been linked firmly on the hydraulic motor's the output shaft, hydraulic motor's input is connected with a drive oil pipe, drive oil pipe's output is linked together with the oil tank, recovery unit still includes oil circuit switching mechanism, is equipped with the actuating mechanism that can drive piston reciprocating motion on the base. This marine oil spilling dross recovery unit can carry out spilled oil dross recovery in succession automatically.
The existing simple and effective measures for recovering and treating leaked oil are relatively mature in technology, and the common methods comprise an oil fence, a mechanical method, an adsorption method and the like, but the leaked oil cannot be recovered in time, so that the crude oil is continuously diffused.
Disclosure of Invention
The invention overcomes the problems in the prior art and provides an oil leakage emergency treatment device for an oil tanker and a clearing method thereof.
The specific technical scheme of the invention is as follows:
an oil leakage emergency treatment device for an oil tanker comprises the oil tanker and an oil absorption structure, and is characterized in that a hoisting device for retracting the oil absorption structure is arranged on the oil tanker,
the oil absorption structure is including being circular shape flotation tank structure, the bottom of flotation tank structure is equipped with bearing base, middle level and is equipped with the case of depositing, the upper strata that are used for depositing the segmentation area and is equipped with the oil collection box, wherein: the bottom of the oil recovery tank is also provided with a sealing cover, and the center of the oil recovery tank is provided with a connecting pipe;
the motor is arranged above the floating box structure, and a rotating shaft connected to the motor penetrates through the oil recovery box and the storage box and then extends into the bearing base;
the dividing belt disc is arranged around the rotating shaft, one end of the dividing belt is connected to the rotating shaft, the other end of the dividing belt is arranged on the outer side of the middle layer of the buoyancy tank structure, a buckling block is arranged at the end of the dividing belt, and a buckling groove for buckling the buckling block is further arranged on the outer wall surface of the middle layer of the buoyancy tank structure;
still including installing the vacuum pump on the flotation tank structure, the vacuum pump is equipped with the evacuation pipe and penetrates in the oil collection box. Preferably, a circle of small buoyancy tank is further mounted around the bottom side of the buoyancy tank structure, and a lifting ring is further mounted at the top of the buoyancy tank structure.
A protective sleeve is arranged in a gap between the storage box and the oil recovery box.
An oil suction pipe butted with the connecting pipe is arranged at the upper part of the dividing belt, and oil inlets are uniformly distributed on the oil suction pipe.
The buckle is characterized in that the cross sections of the buckle blocks and the corresponding buckle grooves are T-shaped or the cross sections of the buckle blocks and the corresponding buckle grooves are oval.
Based on the device, the invention also provides an oil spill removing method of the oil leakage emergency treatment device of the oil tanker, which is characterized by comprising the following steps,
1) when the oil tanker leaks oil, the hoisting device hooks the hoisting ring by using the steel wire rope to lower the oil absorption structure into the sea, so that the oil absorption structure floats on the sea surface;
2) the small lifeboat is used for quickly pulling out the buckling block and buckling the buckling block in the buckling groove of the other oil absorption structure, and more than 3 oil absorption structures are mutually buckled and connected to form a closed area to surround an oil leakage area and prevent re-diffusion;
3) starting the motor and the vacuum pump of each oil suction structure, enabling the motor to drive the rotating shaft to start rotating and recovering the dividing belt, enabling the dividing belt to be coiled in the storage box, meanwhile, enabling the vacuum pump to start vacuumizing the oil recovery box, and since the oil leakage floats on the top layer of the sea surface, the oil suction pipe above the dividing belt starts recovering the oil leakage floating on the sea surface through the driving of vacuumizing, namely enabling the oil suction pipe to generate suction force through the vacuumizing of the vacuum pump, and the oil leakage enters the oil suction pipe through the oil inlet and then is sent into the oil recovery box through the connecting pipe to be stored;
4) the motor drives the rotating shaft to continuously recover the cutting belts, so that the oil leakage area is continuously reduced, the oil leakage is continuously pushed by the cutting belts to be continuously concentrated in the area surrounded by the oil absorption structures and is continuously recovered, finally the cutting belts of the oil absorption structures are recovered to form a small area, and at the moment, the oil leakage is recovered;
5) the staff will detain the piece and take out from the catching groove, retrieve through hoisting accessory and inhale oil structure to the oil tanker on, will seal the lid and take off, retrieve the oil water mixture in the oil recovery box.
The invention has the beneficial effects that: the invention utilizes reasonable structural design to control the leaked oil of the oil tanker in a certain area in the first time, thereby preventing the leaked oil from further spreading, simultaneously reducing the space and recovering the leaked oil at the same time, having high speed, effectively reducing pollution, increasing the recovery efficiency and being suitable for popularization and use.
Drawings
FIG. 1 is a block diagram of the marine oil spill removal device of the present invention;
FIG. 2 is a schematic view of construction;
FIG. 3 is a structural view of an oil absorbing structure;
FIG. 4 is a block diagram of a dicing tape;
fig. 5 is a block diagram of two embodiments of a button block and a button slot.
Detailed Description
Example 1
As shown in the figure, an oil leakage emergency treatment device for an oil tanker comprises an oil tanker 200 and an oil absorption structure 100, wherein a hoisting device 300 for retracting and releasing the oil absorption structure 100 is installed on the oil tanker 200, and the hoisting device 300 is hooked on a lifting ring 104 through a steel wire rope to put the oil absorption structure 100 on the sea surface or recover the oil absorption structure from the sea surface.
The oil suction structure 100 comprises a round buoyancy tank structure 109, and a lifting ring 104 is further mounted on the top of the buoyancy tank structure 109. The bottom of flotation tank structure 109 is equipped with bearing base 116, the middle level is equipped with and is used for depositing the case 117 of depositing of cutting apart the area 107, the upper strata is equipped with oil recovery box 105, wherein: the bottom of the oil recovery tank 105 is also provided with a sealing cover 113, and the center of the oil recovery tank 105 is provided with a connecting pipe 110. A circle of small buoyancy tanks 115 are also installed around the bottom edge of the buoyancy tank structure 109, and the small buoyancy tanks 115 are used for adjusting the submerging depth of the buoyancy tank structure 109, so that the separation belt 107 can enclose leaked oil, and the oil suction pipe 114 can suck leaked oil to the top layer of the sea surface.
The motor 101 is installed above the buoyancy tank structure 109, and a rotating shaft 111 connected to the motor 101 extends and is assembled in the bearing base 116 after passing through the oil recovery tank 105 and the storage tank 117; in order to prevent the oil recovery tank 105 from being scratched by the rotating shaft 111 during the rotation of the rotating shaft 111 driven by the motor, a protective jacket 106 is further provided in the gap between the storage tank 117 and the oil recovery tank 105
The dividing belt 107 is coiled around the rotating shaft 111, one end of the dividing belt 107 is connected to the rotating shaft 111, the other end of the dividing belt 107 is arranged on the outer side of the middle layer of the buoyancy tank structure 109, and the outer wall surface of the middle layer of the buoyancy tank structure 109, provided with a buckling block at the end, is also provided with a buckling groove for buckling the buckling block; in this embodiment, the cross-sections of the fastening block 108 and the corresponding fastening slot 112 are T-shaped or the cross-sections of the fastening block 208 and the corresponding fastening slot 212 are elliptical.
In addition, the device also comprises a vacuum pump 102 arranged on the buoyancy tank structure 109, and the vacuum pump 102 is provided with an evacuating pipe 103 penetrating into the oil recovery tank 105. An oil suction pipe 114 butted with the connecting pipe 110 is arranged at the upper part of the dividing belt 107, and oil inlets 1141 are uniformly distributed on the oil suction pipe 114. The suction force is generated in the suction pipe 114 by the vacuum pumping of the vacuum pump 102, and the leaked oil enters the suction pipe 114 through the oil inlet 1141 and then is sent into the oil recovery tank 105 through the connecting pipe 110 for storage.
Based on the device, the invention also provides an oil spill removing method of the oil leakage emergency treatment device of the oil tanker, which is characterized by comprising the following steps,
when the oil tanker leaks oil, the hoisting device 300 hooks the hoisting ring 104 by using a steel wire rope to lower the oil absorption structure 100 into the sea, so that the oil absorption structure 100 floats on the sea surface; the fastening blocks 108 and 208 are quickly pulled out by using a small lifeboat and fastened in the fastening grooves 112 and 212 of the other oil absorption structure 100, and more than 3 oil absorption structures 100 are mutually fastened to form a closed area to surround the oil leakage area and prevent the oil leakage area from being diffused again;
starting the motor 101 and the vacuum pump 102 of each oil suction structure 100, so that the motor 101 drives the rotating shaft 111 to rotate and recover the dividing belt 107, so that the dividing belt 107 is coiled in the storage box 117, meanwhile, the vacuum pump 102 starts to vacuumize the oil recovery box 105, and as the leaked oil floats on the top layer of the sea surface, the oil suction pipe 114 above the dividing belt 107 starts to recover the leaked oil floating on the sea surface through the driving of the vacuumizing, namely the oil suction pipe 114 generates suction through the vacuumizing of the vacuum pump 102, and the leaked oil enters the oil suction pipe 114 through the oil inlet 1141 and then is sent into the oil recovery box 105 through the connecting pipe 110 for storage;
because the motor 101 drives the rotating shaft 111 to continuously recover the dividing belt 107, the oil leakage area is continuously reduced, meanwhile, the oil leakage is continuously pushed by the dividing belt 107 to be continuously concentrated in the area enclosed by the oil absorption structures 100 and is continuously recovered, finally, the dividing belt 107 of each oil absorption structure 100 is recovered to form a small area, and at the moment, the oil leakage is recovered; 5, the staff takes the fastening blocks 108 and 208 out of the fastening grooves 112 and 212, recovers the oil absorption structure 100 to the oil ship through the hoisting device 300, takes down the sealing cover 113, and recovers the oil-water mixture in the oil recovery tank 105.
The invention utilizes reasonable structural design to control the leaked oil of the oil tanker in a certain area in the first time, thereby preventing the leaked oil from further spreading, simultaneously reducing the space and recovering the leaked oil at the same time, having high speed, effectively reducing pollution and increasing the recovery efficiency.
The working principle of the invention is as follows, when in use, the lifting device 300 hooks the lifting ring 104 by using a steel wire rope to lower the oil absorption structure 100 into the sea, so that the oil absorption structure 100 floats on the sea surface; the fastening blocks 108 and 208 are quickly pulled out by using a small lifeboat and fastened in the fastening grooves 112 and 212 of the other oil absorption structure 100, and more than 3 oil absorption structures 100 are mutually fastened to form a closed area to surround the oil leakage area and prevent the oil leakage area from being diffused again;
starting the motor 101 and the vacuum pump 102 of each oil suction structure 100, so that the motor 101 drives the rotating shaft 111 to rotate and recover the dividing belt 107, so that the dividing belt 107 is coiled in the storage box 117, meanwhile, the vacuum pump 102 starts to vacuumize the oil recovery box 105, and as the leaked oil floats on the top layer of the sea surface, the oil suction pipe 114 above the dividing belt 107 starts to recover the leaked oil floating on the sea surface through the driving of the vacuumizing, namely the oil suction pipe 114 generates suction through the vacuumizing of the vacuum pump 102, and the leaked oil enters the oil suction pipe 114 through the oil inlet 1141 and then is sent into the oil recovery box 105 through the connecting pipe 110 for storage;
because the motor 101 drives the rotating shaft 111 to continuously recover the dividing belt 107, the oil leakage area is continuously reduced, meanwhile, the oil leakage is continuously pushed by the dividing belt 107 to be continuously concentrated in the area enclosed by the oil absorption structures 100 and is continuously recovered, finally, the dividing belt 107 of each oil absorption structure 100 is recovered to form a small area, and at the moment, the oil leakage is recovered; 5, the staff takes the fastening blocks 108 and 208 out of the fastening grooves 112 and 212, recovers the oil absorption structure 100 to the oil ship through the hoisting device 300, takes down the sealing cover 113, and recovers the oil-water mixture in the oil recovery tank 105.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (4)
1. An emergency treatment method for oil leakage of an oil tanker comprises the oil tanker (200) and an oil absorption structure (100), and is characterized in that a hoisting device (300) for retracting the oil absorption structure (100) is arranged on the oil tanker (200),
oil absorption structure (100) is including being circular shape flotation tank structure (109), the bottom of flotation tank structure (109) is equipped with bearing base (116), middle level are equipped with and are used for depositing deposit case (117), the upper strata of cutting apart area (107) and are equipped with oil recovery case (105), wherein: the bottom of the oil recovery tank (105) is also provided with a sealing cover (113), and the center of the oil recovery tank (105) is provided with a connecting pipe (110);
the motor (101) is arranged above the buoyancy tank structure (109), a rotating shaft (111) is connected to the motor (101), and the rotating shaft (111) penetrates through the oil recovery tank (105) and the storage tank (117) and then extends to be assembled on the bearing base (116);
the dividing belt (107) is coiled around the rotating shaft (111), one end of the dividing belt (107) is connected to the rotating shaft (111), the other end of the dividing belt is arranged on the outer side of the middle layer of the buoyancy tank structure (109), the end of the dividing belt is provided with a buckling block (108, 208), and the outer wall surface of the middle layer of the buoyancy tank structure (109) is also provided with a buckling groove (112, 212) for buckling the buckling block (108, 208);
the device also comprises a vacuum pump (102) arranged on the buoyancy tank structure (109), wherein the vacuum pump (102) is provided with a vacuumizing pipe (103), and the vacuumizing pipe (103) penetrates into the oil recovery tank (105); an oil suction pipe (114) butted with the connecting pipe (110) is arranged at the upper part of the dividing belt (107), and oil inlets (1141) are uniformly distributed on the oil suction pipe (114);
the oil spill removing method comprises the following steps,
1) when the oil tanker leaks oil, the hoisting device (300) hooks the hoisting ring (104) by using a steel wire rope to lower the oil absorption structure (100) into the sea, so that the oil absorption structure (100) floats on the sea surface;
2) the buckling blocks (108, 208) are quickly pulled out and buckled in the buckling grooves (112, 212) of the other oil absorption structure (100) by using a small lifeboat, and more than 3 oil absorption structures (100) are mutually buckled and connected to form a closed area to surround the oil leakage area and prevent the oil leakage area from being diffused again;
3) starting a motor (101) and a vacuum pump (102) of each oil suction structure (100), enabling the motor (101) to drive a rotating shaft (111) to start rotating and recovering the dividing belt (107), enabling the dividing belt (107) to be coiled in the storage box (117), meanwhile, enabling the vacuum pump (102) to start vacuumizing the oil recovery box (105), and enabling an oil suction pipe (114) above the dividing belt (107) to start recovering the leaked oil floating on the sea surface through the driving of vacuumizing because the leaked oil floats on the top layer of the sea surface, namely enabling the oil suction pipe (114) to generate suction force through the vacuumizing of the vacuum pump (102), and enabling the leaked oil to enter the oil suction pipe (114) through an oil inlet (1141) and then to be conveyed into the oil recovery box (105) through a connecting pipe (110) for storage;
4) the motor (101) drives the rotating shaft (111) to continuously recover the dividing belt (107), so that the oil leakage area is continuously reduced, the leaked oil is continuously pushed by the dividing belt (107) to concentrate towards the area enclosed by the oil absorption structures (100) and is continuously recovered, finally the dividing belt (107) of each oil absorption structure (100) is recovered to form a small area, and the leaked oil is recovered;
5) the staff takes the button blocks (108, 208) out of the button grooves (112, 212), recovers the oil absorption structure (100) to the oil tanker through the hoisting device (300), takes the sealing cover (113) down, and recovers the oil-water mixture in the oil recovery tank (105).
2. The emergency treatment method for oil spilled by tanker according to claim 1, characterized in that a circle of small buoyancy tanks (115) are further installed around the bottom side of the buoyancy tank structure (109), and the top of the buoyancy tank structure (109) is further installed with a lifting ring (104).
3. The emergency treatment method for oil leakage of oil tanker according to claim 1, characterized in that a protective jacket (106) is further provided in the gap between the storage tank (117) and the oil recovery tank (105).
4. A method according to any one of claims 1-3, characterized in that the cross-section of the button block (108) and the corresponding button groove (112) is T-shaped or the cross-section of the button block (208) and the corresponding button groove (212) is oval.
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| CN201910542800.9A CN110258484B (en) | 2019-06-21 | 2019-06-21 | Oil leakage emergency treatment device for oil tanker and clearing method thereof |
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| CN201910542800.9A CN110258484B (en) | 2019-06-21 | 2019-06-21 | Oil leakage emergency treatment device for oil tanker and clearing method thereof |
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| CN110258484A CN110258484A (en) | 2019-09-20 |
| CN110258484B true CN110258484B (en) | 2021-02-09 |
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| RU2126477C1 (en) * | 1996-08-12 | 1999-02-20 | Ильичев Владимир Борисович | Oil sludge evacuating device |
| CN103452084B (en) * | 2013-06-26 | 2015-07-01 | 浙江海洋学院 | Offshore oil contamination recovery device |
| CN208454554U (en) * | 2018-02-11 | 2019-02-01 | 西华大学 | A kind of leakage petroleum is collected and separator |
| CN109281303B (en) * | 2018-11-27 | 2023-10-03 | 长江勘测规划设计研究有限责任公司 | Suspended rotary dirt blocking and cleaning device |
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