CN108408832B - Self-operated liquid level automatic regulating oil collecting device - Google Patents

Self-operated liquid level automatic regulating oil collecting device Download PDF

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Publication number
CN108408832B
CN108408832B CN201810329185.9A CN201810329185A CN108408832B CN 108408832 B CN108408832 B CN 108408832B CN 201810329185 A CN201810329185 A CN 201810329185A CN 108408832 B CN108408832 B CN 108408832B
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China
Prior art keywords
liquid level
track
level automatic
connecting pipe
water
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Application number
CN201810329185.9A
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Chinese (zh)
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CN108408832A (en
Inventor
王杨辉
王超峰
王任
曲元峰
刘彦东
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Drums Of Daqing Petroleum Technology Co ltd
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Drums Of Daqing Petroleum Technology Co ltd
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Priority to CN201810329185.9A priority Critical patent/CN108408832B/en
Publication of CN108408832A publication Critical patent/CN108408832A/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02Separation of non-miscible liquids
    • B01D17/0208Separation of non-miscible liquids by sedimentation
    • B01D17/0214Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/12Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/42Liquid level
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/204Keeping clear the surface of open water from oil spills

Abstract

The utility model provides a self-operated liquid level automatically regulated oil receiving device, includes the settling cask, installs the water tank on settling cask upper portion wall, the water tank in install liquid level automatically regulated device, liquid level automatically regulated device draws together the track polished rod, track polished rod upper portion is connected with the track and goes up the uide bushing, track polished rod lower part is connected with the track uide bushing down, track polished rod lower extreme is connected with fixation nut, go up track uide bushing outer wall and be fixed with the liquid level automatic regulator upper body, the bottom surface of liquid level automatic regulator upper body is fixed with the connecting pipe, the connecting pipe lower part passes through the sieve seat and is connected with the uide bushing down, the well lower part outer wall of connecting pipe is fixed with the liquid level automatic regulator lower part, the liquid level automatic regulator lower part sits on the annular slab, the centre bore fixedly connected with nozzle stub of annular slab, the nozzle stub is connected with fixation nut through lower sieve seat. The device can meet the automatic control requirement of the internal liquid level when the sedimentation tank automatically receives oil, and improves the oil receiving efficiency; reduce the sewage and waste of water resources.

Description

Self-operated liquid level automatic regulating oil collecting device
Technical Field
The application belongs to the field of oil field oil extraction sewage treatment, and relates to a self-operated liquid level automatic adjustment oil receiving device.
Background
The settling tank is the main equipment for removing oil, water and solids in the oilfield sewage combined station, wherein the oil removal function is oil-water separation, and the separated oil is discharged to an oil collecting system for recovery. The realization of the oil collection of the settling tank is carried out on the premise that the liquid level in the settling tank is higher than the oil collection tank in the settling tank, and then the liquid level in the settling tank is regulated through the change of water inflow. The control of the liquid level in the settling tank is currently regulated by the height of the water outlet weir, the water inlet law needs to be mastered in the production process, and the water inlet amount is inversely related to the height of the water outlet weir.
In actual production, when the sedimentation tank receives oil, a worker is required to stand on the top of the sedimentation tank to coordinate with manual operation to adjust the water outlet weir to a proper position, so that the liquid level in the sedimentation tank is slightly higher than the oil receiving groove in the sedimentation tank, and the floating oil automatically flows into the oil receiving groove of the sedimentation tank and is conveyed to an oil receiving system through an oil conveying pipeline laid in the oil receiving groove to achieve the purpose of oil collection.
The main problems existing in the production process at present in the adjustment of the water outlet weir are as follows: the operation difficulty of the water outlet weir is high, and the hidden danger of production is existed. Every time oil is collected, workers need to climb to the top of a settling tank with the height of more than ten meters, stand on the top of the tank to operate a water outlet weir hand wheel so as to enable the water outlet weir to move up and down, and the liquid level in the settling tank is controlled to rise and fall, so that the height requirement of the oil collecting liquid level is met. Because the torque force for operating the water outlet weir hand wheel is large, one group of three persons is needed, and at least 2 groups of persons are difficult to operate in turn to finish the lifting of the water outlet weir, and if the water outlet weir is operated in severe weather such as wind, snow and rain, the water outlet weir is difficult and heavy; in addition, when a worker operates the water outlet weir, the standing position is the top plate of the water outlet weir box body, the top plate is easy to corrode, and volatile combustible gas is easy to gather when the water outlet weir is in a high Wen Mofeng environment, so that the life safety of operators is difficult to guarantee, and even larger production potential safety hazards are caused. The water outlet weir adjusts the corrosion damage of the transmission screw. The adjusting transmission screw of the water outlet weir is arranged above the water outlet and is corroded by water vapor and external weather environment for a long time, rust is easy to generate, blocking and the like, so that the operation cannot be performed.
Due to the reasons, the oil field is currently subjected to oil recovery by the settling tank to different degrees, so that the oil removal effect of the settling tank is affected, and the oil layer on the tank is thicker due to long-time oil recovery, so that the water quality is affected, and potential safety hazards exist.
Disclosure of Invention
In order to solve the technical problems, the application provides the self-operated automatic liquid level adjustment oil receiving device which is not limited by climatic environment factors, can efficiently and quickly solve the automatic control requirement of the internal liquid level when the settling tank of the oil extraction and sewage combined station of the established and established oil fields receives oil automatically, lightens the manpower and material resources required by the oil receiving of the settling tank and the safety guarantee of personnel in production, avoids the existence of unsafe production hidden danger and can improve the oil receiving efficiency; reduce the sewage and waste of water resources.
The technical scheme adopted by the application is as follows: the self-operated liquid level automatic adjustment oil receiving device comprises a track polish rod, the upper part of the track polish rod is connected with a track upper guide sleeve, the lower part of the track polish rod is connected with a track lower guide sleeve, the lower end of the track polish rod is connected with a fixing nut, the outer wall of the upper track guide sleeve is fixedly provided with a liquid level automatic adjuster upper body, the shape of the liquid level automatic adjuster upper body is a hemispherical table body, the bottom surface of the liquid level automatic adjuster upper body is fixedly provided with a connecting pipe, the lower part of the connecting pipe is connected with the track lower guide sleeve through a sieve plate seat, the outer wall of the middle lower part of the connecting pipe is fixedly provided with a liquid level automatic adjuster lower body, 4 strip-shaped water outlet holes are uniformly distributed in the radial direction of the connecting pipe between the liquid level automatic adjuster upper body and the liquid level automatic adjuster lower body, a hollow columnar cavity is formed by enclosing an annular sealing plate and a cylinder body, the liquid level automatic adjuster lower body is arranged on an annular plate, the central hole of the annular plate is fixedly connected with a short pipe, and the short pipe is connected with the fixing nut through the lower sieve plate seat.
The application has the following beneficial effects: the application has unique superiority, simple and reasonable structure, convenient installation and maintenance, and can stably and automatically adjust the oil receiving liquid level in the settling tank, so that the settling tank is not limited in any climatic environment, oil is continuously and automatically received, the oil receiving efficiency is improved, and the generation and accumulation of aged oil in the settling tank due to long-time non-oil receiving are avoided; avoiding pollution and waste of a large amount of water resources; the phenomenon that when oil is collected in a settling tank in severe winter, more workers need to climb to a water outlet weir which is easy to rust and dead and is operated on the top of the settling tank with the height of more than ten meters frequently is avoided, and unsafe accidents such as injury to the workers are avoided; the water weir for operating the volatile combustible gas in a large amount accumulated on the water tank in the high-temperature environment in summer is also avoided, and the life safety of personnel cannot be guaranteed and hidden dangers of production cannot be eliminated.
Drawings
FIG. 1 is a schematic diagram of the settling tank installation of the present application.
Fig. 2 is a schematic structural view of the self-operated liquid level automatic adjustment oil receiving device.
Detailed Description
The self-operated liquid level automatic regulating oil receiving device is arranged in a water tank 17 at the outer side of the upper part of a settling tank 18, the liquid level automatic regulating device 19 comprises a rail polish rod 3, the rail polish rod 3 plays a role in a rail, the upper end of the rail polish rod 3 is connected with a rail cap 1 and a rail fixing sleeve 2, the rail cap 1 and the rail fixing sleeve 2 are used for fixing the rail polish rod 3, the rail cap 1 and the rail polish rod 3 form radial concentricity, and the surface is smooth and uniform. The upper part of the track polish rod 3 is connected with an upper track guide sleeve 4, the lower part of the track polish rod 3 is connected with a lower guide sleeve 11, the upper guide sleeve 4 and the lower guide sleeve 11 move up and down along the track polish rod 3 to play a role in guiding, the lower end of the track polish rod 3 is connected with a fixing nut 16, the fixing nut 16 plays a role in fixing the track polish rod 3, the outer wall of the upper guide sleeve 4 is fixedly provided with an upper liquid level automatic regulator body 20, the upper liquid level automatic regulator body 20 and the upper guide sleeve 4 move up and down along the track polish rod 3 together, the upper liquid level automatic regulator body 20 is in the shape of a hemispherical table body, the spherical surface has smaller tension on water, the buoyancy effect on the upper liquid level automatic regulator body 20 is smaller, the upper liquid level automatic regulator body 20 moves up under the buoyancy, the upper liquid level automatic regulator body 20 can float up under the buoyancy effect of the water, the bottom surface of the upper body 20 of the liquid level automatic regulator is fixedly provided with a connecting pipe 8, the lower part of the connecting pipe 8 is connected with a lower guide sleeve 11 through a sieve plate seat 12, the sieve plate seat 12 is used for fixedly connecting the connecting pipe 8 and the lower guide sleeve 11 and water can pass through, the upper body 20 of the liquid level automatic regulator, the upper guide sleeve 4, the connecting pipe 8 and the lower guide sleeve 11 move up and down along a track polished rod 3 together, the outer wall of the middle lower part of the connecting pipe 8 is fixedly provided with a lower body 21 of the liquid level automatic regulator, the lower body 21 of the liquid level automatic regulator can float under the buoyancy of water, 4 strip-shaped water outlet holes are uniformly distributed in the radial direction of the connecting pipe 8 between the upper body 20 of the liquid level automatic regulator and the lower body 21 of the liquid level automatic regulator, when the water level in a water tank 17 rises to the position of the strip-shaped water outlet holes of the connecting pipe 8, water enters the connecting pipe 8 through the strip-shaped water outlet holes of the sieve plate seat 12 and enters the short pipe 14 for discharging, the middle of the lower body 21 of the liquid level automatic regulator is a hollow columnar cavity, the lower body 21 of the liquid level automatic regulator is seated on the annular plate 13, the lower body 21 of the liquid level automatic regulator can seal a central hole on the annular plate 13, water in the water tank 17 is prevented from being directly discharged outside from the central hole, the lower body 21 of the liquid level automatic regulator and the annular plate 13 are of a split structure, a short pipe 14 is fixedly connected with the central hole of the annular plate 13, the short pipe 14 is connected with a fixing nut 16 through a lower sieve plate seat 15, and the lower sieve plate seat 15 and the fixing nut 16 are used for fixing the lower end of the track polish rod 3 and water can pass through. The lower body 21 of the automatic liquid level regulator is separated from the annular plate 13 when floating upwards, the central hole of the short pipe 14 is opened to be directly communicated with the water tank 17, and a large amount of water is discharged.
The appearance of the upper body 20 of the liquid level automatic regulator is a hemispherical table body, the upper body 20 of the liquid level automatic regulator is a closed cavity surrounded by an annular upper sealing plate 5, an annular lower sealing plate 6, an upper guide sleeve 4 and a hemispherical shell 7, and the structural purpose of the cavity of the upper body 20 of the liquid level automatic regulator is to generate buoyancy in water. The appearance of the lower body 21 of the liquid level automatic regulator is a hollow cylinder, and the lower body 21 of the liquid level automatic regulator is a closed cavity surrounded by the annular sealing plate 9, the lower part of the connecting pipe 8 and the cylinder 10. The cavity structure of the lower body 21 of the level automatic regulator is designed to generate buoyancy in the water. The upper liquid level automatic regulator body 20 and the lower liquid level automatic regulator body 21 are fixed on the connecting pipe 8, so that the upper liquid level automatic regulator body 20 and the lower liquid level automatic regulator body 21 are connected into a whole, and the upper liquid level automatic regulator body 20 and the lower liquid level automatic regulator body 21 move up and down along the track polished rod 3 to regulate the drainage.
The cavity of the upper body 20 of the liquid level automatic regulator is fixed on the upper guide sleeve 4, the upper body 20 of the liquid level automatic regulator, the upper guide sleeve 4 and the connecting pipe 8 move up and down along the track polish rod 3 under the action of buoyancy, the lower body 21 of the liquid level automatic regulator is fixed on the connecting pipe 8, and the lower body 21 of the liquid level automatic regulator, the lower guide sleeve 11 and the connecting pipe 8 move up and down along the track polish rod 3 under the action of buoyancy.
When the automatic liquid level regulator works, along with the gradual rise of the water level in the water tank 17 to the position of the strip-shaped water outlet hole of the connecting pipe 8, water enters the connecting pipe 8 from the strip-shaped water outlet hole of the connecting pipe 8 and enters the short pipe 14 to be discharged through the sieve plate seat 12 and the lower sieve plate seat 15, the oil-water interface set in the settling tank 18 is kept, when the oil-water interface in the settling tank 18 rises due to the increase of the liquid inlet amount of the settling tank, the water in the settling tank 18 can enter the water tank 17 in a large displacement mode, the water level in the water tank 17 is higher than the position of the strip-shaped water outlet hole of the connecting pipe 8, under the action of buoyancy, the upper liquid level regulator body 20, the lower liquid level regulator body 21 and the connecting pipe 8 move upwards along the track polished rod 3 along with the upper guide sleeve 4 and the lower guide sleeve 11, the lower liquid level regulator body 21 is separated from the annular plate 13 when the lower liquid level regulator body 21 floats upwards, the central hole of the short pipe 14 is opened, and a large amount of water is discharged outwards. At this time, the oil-water interface in the settling tank 18 returns to the set position, after the upper body 20 of the automatic water draining level regulator and the lower body 21 of the automatic liquid level regulator lose buoyancy, the upper body 20 of the automatic liquid level regulator, the lower body 21 of the automatic liquid level regulator and the connecting pipe 8 move downwards along the track polished rod 3 along with the upper guide sleeve 4 and the lower guide sleeve 11, the lower body 21 of the automatic liquid level regulator is oppositely seated on the annular plate 13, the central hole of the short pipe 14 is closed, water can only enter the connecting pipe 8 from the strip-shaped water outlet hole of the connecting pipe 8 and enter the short pipe 14 to be drained outwards through the sieve plate seat 12 and the lower sieve plate seat 15, and the process is repeatedly circulated to achieve the oil-water interface in the automatic settling tank 18.
According to the requirements of the oil receiving process flow and the oil receiving groove and the oil receiving liquid level of the sedimentation tank and the relation between the side water tanks of the sedimentation tank. The application is arranged in the side water tank of the settling tank and integrated with the water tank, and the water inflow change of the water tank is determined by the water inflow change of the settling tank. When the water inflow of the water tank changes, the buoyancy in the water tank suffered by the device also changes, and the track polished rod 3 moves up and down to adjust the water drainage of the water tank, so that the oil collection in the sedimentation tank is required to be stably and automatically adjusted, the dynamic balance of the liquid level in the sedimentation tank and the water tank at the side of the sedimentation tank is promoted, and the aim of automatically controlling the oil collection is fulfilled.
The self-operated automatic adjusting oil receiving device is simple in structure and convenient to install, is installed in the water tank 17 on the side of the sedimentation tank 18 during operation, the lower end of the short pipe 14 is in sealing connection with a drainage pipeline laid by the water tank, the track fixing sleeve 2 is fixed on the top plate of the water tank, and the buoyancy of the self-operated automatic adjusting oil receiving device in the water tank is changed through water inflow change in the water tank. When the water inflow in the water tank reaches a certain amount, the buoyancy in the water tank is larger than or equal to the gravity of the self-operated automatic adjusting oil receiving device, and the upper body 20 and the lower body 21 of the liquid level automatic adjusting oil receiving device float upwards to open a water outlet so as to maximize the water drainage; otherwise, the self-operated automatic position adjusting oil receiving device cannot float upwards, water to be discharged slowly flows into the short pipe 14 from the 4 strip-shaped water outlet holes on the connecting pipe 8 to be further discharged, the sedimentation tank is communicated with the water tank on the side of the sedimentation tank to form a U-shaped pipe communicating vessel, and the sedimentation tank and the water tanks on the side of the sedimentation tank are continuously supplemented with each other according to the principle of the U-shaped pipe communicating vessel to achieve a dynamic balance state, so that the liquid inlet amount of the sedimentation tank, the water inlet amount of the water tank and the water discharge amount of the water tank are in direct proportion.

Claims (3)

1. The utility model provides a self-operated liquid level automatically regulated oil receiving device, includes track polished rod (3), its characterized in that: the upper end of the track polish rod (3) is connected with a track cap (1) and a track fixing sleeve (2), the upper part of the track polish rod (3) is connected with a track upper guide sleeve (4), the lower part of the track polish rod (3) is connected with a track lower guide sleeve (11), the lower end of the track polish rod (3) is connected with a fixing nut (16), the outer wall of the track upper guide sleeve (4) is fixedly provided with a liquid level automatic regulator upper body (20), the shape of the liquid level automatic regulator upper body (20) is a hemispherical table body, the bottom surface of the liquid level automatic regulator upper body (20) is fixedly provided with a connecting pipe (8), the lower part of the connecting pipe (8) is connected with a track lower guide sleeve (11) through a sieve plate seat (12), the middle lower outer wall of the connecting pipe (8) is fixedly provided with a liquid level automatic regulator lower body (21), the connecting pipe (8) between the liquid level automatic regulator upper body (20) and the liquid level automatic regulator lower body (21) is uniformly provided with 4 strip-shaped water outlet holes along the radial direction, the middle of the liquid level automatic regulator lower body (21) is a hollow columnar cavity, the automatic regulator lower body (21) is fixedly provided with a short pipe (14) through a ring seat (14) on the ring plate (13), and the lower end of the connecting pipe is fixedly connected with the ring seat (14) through the ring seat (14) and the ring seat (14);
the self-operated liquid level automatic adjustment oil receiving device is arranged in a water tank (17) at the side of a settling tank (18) when in operation, the lower end of a short pipe (14) is in sealing connection with a drainage pipeline laid by the water tank, a track fixing sleeve (2) is fixed on a top plate of the water tank, and the buoyancy of the self-operated liquid level automatic adjustment oil receiving device in the water tank is changed through the water inflow change in the water tank; when the water inflow in the water tank reaches a certain amount, the buoyancy in the water tank is larger than or equal to the gravity of the self-operated automatic adjusting oil receiving device, and the upper body (20) and the lower body (21) of the liquid level automatic adjusting oil receiving device float upwards to open a central hole so as to maximize the drainage; otherwise, the self-operated automatic position adjusting oil receiving device cannot float upwards, water to be discharged slowly flows into the short pipe (14) from the 4 strip-shaped water outlet holes on the connecting pipe (8) to be discharged, the sedimentation tank is communicated with the water tank on the side of the sedimentation tank to form a U-shaped pipe communicating vessel, and liquid levels on two sides of the sedimentation tank and the water tank on the side of the sedimentation tank are continuously supplemented with each other to achieve a dynamic balance state according to the principle of the U-shaped pipe communicating vessel.
2. The self-contained level automatically adjusting oil receiving device of claim 1, wherein: the upper body (20) of the liquid level automatic regulator is a closed cavity surrounded by an annular upper sealing plate (5), an annular lower sealing plate (6), an upper guide sleeve (4) and a hemispherical shell (7).
3. The self-contained level automatically adjusting oil receiving device of claim 1, wherein: the lower body (21) of the liquid level automatic regulator is a closed cavity surrounded by an annular sealing plate (9), the lower part of the connecting pipe (8) and the cylinder body (10).
CN201810329185.9A 2018-04-13 2018-04-13 Self-operated liquid level automatic regulating oil collecting device Active CN108408832B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810329185.9A CN108408832B (en) 2018-04-13 2018-04-13 Self-operated liquid level automatic regulating oil collecting device

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Application Number Priority Date Filing Date Title
CN201810329185.9A CN108408832B (en) 2018-04-13 2018-04-13 Self-operated liquid level automatic regulating oil collecting device

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CN108408832B true CN108408832B (en) 2023-11-17

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113416577A (en) * 2021-05-24 2021-09-21 禹坤 Self-adjusting oil collecting tank for settling tank

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Publication number Priority date Publication date Assignee Title
GB1343350A (en) * 1971-10-18 1974-01-10 Olsen M F Method and apparatus for removing and reclaiming oil from sea or fresh water
WO1997001680A1 (en) * 1995-06-26 1997-01-16 Anthony John Welsh Floating debris collection
CN1463254A (en) * 2001-05-31 2003-12-24 保罗·伍德利 Method for removing oil, fat and greas from water
CA2757363A1 (en) * 2011-03-31 2012-09-30 Early Riser, Ltd Multi-rate flow control system for a detention pond
CN203944159U (en) * 2014-07-17 2014-11-19 唐述山 Settling tank water outlet weir plate regulates oil-collecting device automatically
AU2014101429A4 (en) * 2014-12-03 2015-01-22 Shaw, Dean Anthony MR Marina Pen Docking Guide
CN106223275A (en) * 2016-08-22 2016-12-14 徐山薇 Reservoir spillway safe power generation
CN208218463U (en) * 2018-04-13 2018-12-11 大庆华谊金鹰石油科技有限公司 Self-operated type liquid level automatically adjusts oil-collecting device

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Publication number Priority date Publication date Assignee Title
CA2403610A1 (en) * 2002-09-17 2004-03-17 Premier Tech 2000 Ltee Buoyancy flushing apparatus and method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1343350A (en) * 1971-10-18 1974-01-10 Olsen M F Method and apparatus for removing and reclaiming oil from sea or fresh water
WO1997001680A1 (en) * 1995-06-26 1997-01-16 Anthony John Welsh Floating debris collection
CN1463254A (en) * 2001-05-31 2003-12-24 保罗·伍德利 Method for removing oil, fat and greas from water
CA2757363A1 (en) * 2011-03-31 2012-09-30 Early Riser, Ltd Multi-rate flow control system for a detention pond
CN203944159U (en) * 2014-07-17 2014-11-19 唐述山 Settling tank water outlet weir plate regulates oil-collecting device automatically
AU2014101429A4 (en) * 2014-12-03 2015-01-22 Shaw, Dean Anthony MR Marina Pen Docking Guide
CN106223275A (en) * 2016-08-22 2016-12-14 徐山薇 Reservoir spillway safe power generation
CN208218463U (en) * 2018-04-13 2018-12-11 大庆华谊金鹰石油科技有限公司 Self-operated type liquid level automatically adjusts oil-collecting device

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