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CN-122013737-A - Adjustable anti-shaking offshore oil-water separator

CN122013737ACN 122013737 ACN122013737 ACN 122013737ACN-122013737-A

Abstract

The invention discloses an adjustable anti-shaking offshore oil-water separator, which relates to the technical field of marine environmental protection and petrochemical equipment and comprises an oil-water separation device, a floating platform and an anti-shaking device. The oil-water separation device is fixedly arranged in the middle of the upper side of the floating platform, and the anti-shaking device is arranged on the floating platform. The floating platform comprises a lower floating platform and an upper floating platform, and a fixed bottom plate is fixedly arranged on the upper side of the lower floating platform. The middle position of the upper floating platform is fixedly provided with a fixed plate, and the oil-water separation device is fixedly arranged on the fixed plate. The middle downside of the fixed plate rotates and is provided with an upper rotary table, and the middle upside of the fixed bottom plate rotates and is provided with a lower rotary table. A fixed frame is fixedly arranged between the upper turntable and the lower turntable. According to the invention, external energy input is not needed, the wave impact energy is skillfully converted into the centralizing moment of the stable platform, the gravity sedimentation process in the oil-water separation device is efficiently carried out on the basis of the stable platform, the oil-water interface is clear, the separation is thorough, and the quality of the effluent water is good.

Inventors

  • YANG QIANG
  • SUN PENGFEI
  • LU HAO
  • HUANG YAOHUA
  • LIU BO
  • GU YONG

Assignees

  • 华东理工大学

Dates

Publication Date
20260512
Application Date
20260304

Claims (9)

  1. 1. The adjustable anti-shaking offshore oil-water separator is characterized by comprising an oil-water separation device (1), a floating platform (2) and an anti-shaking device (3), wherein the oil-water separation device (1) is fixedly arranged in the middle of the upper side of the floating platform (2), and the anti-shaking device (3) is arranged on the floating platform (2); The floating platform (2) comprises a lower floating platform (201) and an upper floating platform (202), a spacing space (203) is arranged between the lower floating platform (201) and the upper floating platform (202), the lower floating platform (201) is located right below the upper floating platform (202), a fixed bottom plate (204) is fixedly arranged on the upper side of the lower floating platform (201), a fixed plate (205) is fixedly arranged in the middle of the upper floating platform (202), an oil-water separation device (1) is fixedly arranged on the fixed plate (205), an upper turntable (206) is rotatably arranged on the middle lower side of the fixed plate (205), a lower turntable (207) is rotatably arranged on the middle upper side of the fixed bottom plate (204), a fixed frame (208) is fixedly arranged between the upper turntable (206) and the lower turntable (207), and an external frame (209) is fixedly arranged on the outer side of the upper floating platform (202). The anti-shaking device (3) comprises a circular guide rail (301) fixedly arranged on the outer side of an outer frame (209), the circular guide rail (301) is provided with a guide block (302) in a sliding manner, the guide block (302) is fixedly connected with an upper rotary table (206) through a fixing bracket (303), a floating block (304) is arranged on the guide block (302) in a sliding manner up and down, a fixing frame (305) is fixedly arranged at the bottom of the sliding block, a first pulley (306) is rotatably arranged on the fixing frame (305), a second pulley (307) is rotatably arranged on the upper portion of the fixing frame (208), an arc plate (308) capable of being tilted upwards is hinged to the bottom of the fixing frame (208), the arc plate (308) extends to one side provided with the floating block (304), a third pulley (309) is slidably arranged below the arc plate (308), the upper portion of the floating block (304) is connected with a steel wire rope (310), the other end of the steel wire rope (310) is fixedly connected to the bottom of the fixing frame (208), the steel wire rope (310) passes through the first pulley (307) and the third pulley (309) from one side of the first pulley (307) to the corresponding to the middle of the third pulley (309) in sequence, the third pulley (309) is connected with the middle of the first pulley (309), the middle part of the steel wire rope (310) is positioned in the through groove (311).
  2. 2. An adjustable anti-sloshing offshore oil-water separator according to claim 1, characterized in that a truncated cone-shaped floating platform (210) is arranged on the upper side of the fixed bottom plate (204).
  3. 3. An adjustable anti-sloshing offshore oil-water separator according to claim 1, characterized in that a reinforcing bracket (211) is fixedly arranged between the outer frame (209) and the fixed bottom plate (204).
  4. 4. The adjustable anti-shaking offshore oil-water separator according to claim 1, wherein an inclined surface (312) is obliquely arranged on one side of the spacing space (203) at the lower part of the floating block (304).
  5. 5. The adjustable anti-sloshing offshore oil-water separator of claim 4, wherein the upper section of the floating block (304) is trapezoidal or triangular.
  6. 6. An adjustable anti-sloshing offshore oil-water separator as claimed in claim 1, wherein the oil-water separator (1) comprises an oil water tank (101), a belt conveyor (102) is fixedly arranged at the upper part of the oil water tank (101), a first belt pulley (103) is rotatably arranged at the upper end of the belt conveyor (102), a second belt pulley (104) is rotatably arranged at the lower end of the belt conveyor (102), a conveying belt (105) is arranged between the first belt pulley (103) and the second belt pulley (104), a motor (106) for driving the first belt pulley (103) to rotate is fixedly arranged on the belt conveyor (102), a scraper (107) is fixedly arranged at one side, close to the conveying belt (105), of the upper part of the belt conveyor (102), a tilting guide plate (108) is fixedly arranged below the scraper (107), a separation chamber (109) is fixedly arranged at the upper side, which is positioned below the tilting guide plate (108), a separation chamber (109) is fixedly arranged at the upper side of the oil water tank (101), a separation chamber (109) is fixedly arranged at the inner side (110), a filter screen (113) is arranged between the lower end of the partition plate (110) and the inner side bottom of the separation box (109), the upper parts of the first cabin (111) and the second cabin (112) are communicated, the upper part of the first cabin (111) is opposite to the lower part of one end of the inclined guide plate (108), a guide pipe (114) is fixedly and vertically arranged on the lower side of the inner part of the second cabin (112), and the lower end of the guide pipe (114) extends into the oil-water box (101).
  7. 7. The adjustable anti-shaking offshore oil-water separator according to claim 5, wherein a discharge opening (115) is arranged at the lower part of the first cabin (111), a discharge valve (116) is arranged on the discharge opening (115), and a receiving box (117) is arranged at the upper side of the oil-water tank (101) and below the discharge opening (115).
  8. 8. The adjustable anti-sloshing offshore oil-water separator of claim 5, wherein the upper end of the conduit (114) is vertically provided with a baffle (118).
  9. 9. A method of oil-water separation using the adjustable anti-sloshing offshore oil-water separator according to any one of claims 1 to 8, comprising the steps of: S1, preparing offshore operation, namely placing the adjustable anti-shaking offshore oil-water separator in a sea area to be treated, immersing an interval space (203) between a lower floating platform (201) and an upper floating platform (202) and a floating block (304) in seawater, and introducing an oil-water mixture to be treated into an oil-water tank (101); S2, anti-shaking stable response, namely when sea waves impact the separator from one side, sea water enters the interval space (203) and impacts the arc plate (308), so that the arc plate (308) is forced to rotate downwards, the arc plate (308) pulls the floating block (304) positioned at the back side of the impact direction to move downwards through the transmission of the third pulley (309), the steel wire rope (310), the second pulley (307) and the first pulley (306), and the floating block (304) moves downwards to generate lifting moment on the back side of the floating platform (2) to resist the inclination caused by sea wave impact so as to maintain the stability of the platform; S3, lifting and separating an oil phase once, namely starting a motor (106) to drive a conveying belt (105) to operate, lifting floating oil on the upper layer in the oil water tank (101) to the top by the conveying belt (105), scraping by a scraper (107), guiding the floating oil into a first cabin (111) of the separation tank (109) by an inclined guide plate (108), standing the oil water in the first cabin (111), and floating and accumulating the oil phase; S4, water phase permeation and secondary separation, namely, sinking the water phase in the first cabin (111) under the action of gravity, entering the second cabin (112) through a filter screen (113) at the lower end of the partition plate (110), and continuously floating a small amount of oil drops carried in the water phase in the second cabin (112) to be accumulated on the upper liquid level of the oil drops; S5, water phase backflow, namely, when the water phase liquid level in the second cabin (112) is accumulated to exceed the upper port of the guide pipe (114), water phase flows back to the oil-water tank (101) through the guide pipe (114) under the action of static pressure difference, and a baffle (118) at the upper end of the guide pipe (114) blocks floating oil at the upper part of the second cabin (112) from entering the guide pipe (114); S6, recovering secondary oil phase, namely, floating oil accumulated at the upper part of the second cabin (112) passes through a communication channel with the upper part of the first cabin (111) along with the rise of the liquid level, and overflows and returns to an oil layer of the first cabin (111); And S7, collecting the finished oil, namely opening a discharge valve (116) after the oil phase separated and collected in the first cabin (111) reaches a preset liquid level, and discharging the oil phase into a receiving box (117) through a discharge opening (115) to finish recovery.

Description

Adjustable anti-shaking offshore oil-water separator Technical Field The invention relates to the technical field of marine environmental protection and petrochemical equipment, in particular to a high-efficiency oil-water separation device with an autonomous stabilization function and a use method thereof, which are suitable for an offshore operation environment. Background Oil-containing sewage is often generated in offshore oil and gas exploitation, ship operation and marine accidents, and effective treatment is needed. When oil-water separation is performed on an offshore platform or a floating device, continuous shaking caused by waves is a major problem affecting separation efficiency. The traditional gravity type separator has good effect under static or stable conditions, but under the action of waves, the liquid level in the separator is inclined, the oil-water interface is disordered, the separation effect is reduced sharply, and the oil content of the effluent exceeds the standard. At present, the shaking problem is solved mainly by adopting two ideas, namely, the whole platform is stabilized through a rigid mooring or active dynamic positioning system, but the cost is high, the energy consumption is high, and the internal structure of the separator is optimized to enhance the anti-interference capability, but the effect is limited under the condition of large shaking. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides an adjustable anti-shaking offshore oil-water separator and a method thereof. The separator can convert wave impact energy into self-stable power, automatically inhibit the inclination of the platform and create a stable environment for oil-water gravity separation, thereby realizing high-efficiency and continuous offshore oil-water separation operation. In order to achieve the above purpose, the present invention provides the following technical solutions: an adjustable anti-shaking offshore oil-water separator comprises an oil-water separation device, a floating platform and an anti-shaking device. The oil-water separation device is fixedly arranged in the middle of the upper side of the floating platform, and the anti-shaking device is arranged on the floating platform. The floating platform comprises a lower floating platform and an upper floating platform, a spacing space is arranged between the lower floating platform and the upper floating platform, and the lower floating platform is positioned right below the upper floating platform. The upper side of the lower floating platform is fixedly provided with a fixed bottom plate. The middle position of the upper floating platform is fixedly provided with a fixing plate, and the oil-water separation device is fixedly arranged on the fixing plate. The middle downside of the fixed plate rotates and is provided with an upper rotary table, and the middle upside of the fixed bottom plate rotates and is provided with a lower rotary table. A fixed frame is fixedly arranged between the upper turntable and the lower turntable. An external frame is fixedly arranged on the outer side of the upper floating platform. The anti-shake device comprises a circular guide rail fixedly arranged on the outer side of the outer frame. The circular guide rail is provided with a guide block in a sliding manner, and the guide block is fixedly connected with the upper rotary table through a fixing bracket. The guide block is provided with a floating block in a vertically sliding manner. The bottom of the guide block is fixedly provided with a fixing frame, and a first pulley is rotatably arranged on the fixing frame. The upper part of the fixed frame is rotatably provided with a second pulley. The bottom of the fixed frame is hinged with an upward tilted arc plate, and the arc plate extends to one side provided with the floating block. The third pulley is arranged at the lower side of the arc plate in a sliding way. The upper portion of the floating block is connected with a steel wire rope, and the other end of the steel wire rope is fixedly connected to the bottom of the fixed frame. The steel wire rope starts from one side of the floating block, passes through the first pulley, the second pulley and the third pulley in sequence, and is finally connected back to the bottom of the fixed frame. The middle part of the arc plate is provided with a through groove corresponding to the third pulley, and the middle part of the steel wire rope penetrates through the through groove. Preferably, a truncated cone-shaped floating platform is arranged on the upper side of the fixed bottom plate so as to provide auxiliary buoyancy and optimize water flow. Preferably, a reinforcing bracket is fixedly arranged between the outer frame and the fixed bottom plate so as to enhance the overall structural strength. Preferably, the lower portion of the float block is provided with an inclined surface inclined to one side of the space