Wastewater treatment equipment for FPSO (floating production storage and offloading)

Abstract

The invention discloses waste water treatment equipment for FPSO (floating production storage and offloading), which comprises a treatment equipment platform, the top of the treatment equipment platform is provided with a waste water treatment barrel, the waste water treatment barrel is connected with a waste water conveying pipe, one end of the waste water conveying pipe extends into the waste water treatment barrel, and the top of the treatment equipment platform is provided with a support plate; according to the waste water treatment equipment for the FPSO, in the rainy weather, collected rainwater is conveyed into the waste water treatment barrel, through operation of the air conveying assembly, air is discharged from a plurality of air outlet holes, tiny bubbles are formed, the bubbles are combined with oil drops, buoyancy is increased, the oil drops float upwards, and the oil drops are discharged out of the waste water treatment barrel. And in the gas conveying process, the rotary driving assembly is started to operate, the ventilation steel pipe is driven to rotate, external air can be evenly conveyed into the waste water treatment barrel, the petroleum in the waste water can be fully combined with bubbles and floats on the water surface, and the separation effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a wastewater treatment device used for FPSO. Background Art

[0002] Offshore floating production storage and offloading vessels (FPSO) are key facilities for offshore oil development. They are mainly used for the extraction, processing, storage and transportation of offshore oil, natural gas and other energy sources. FPSO can receive oil, gas and water mixtures from submarine oil wells, process them, and separate crude oil, natural gas and water. The processed qualified crude oil is stored in the oil tank of FPSO. The stored crude oil can be transported to land by shuttle tankers through the external transmission system.

[0003] During the transportation of the FPSO hull, the oil tanks storing oil often leak oil during the transportation shaking process. When it rains, the surface oil will flow to the plywood with the rain and finally flow into the sea. More oil flowing into the sea will pollute the seawater and affect marine life. For this reason, a wastewater treatment equipment for FPSO is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a wastewater treatment device for FPSO to solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A wastewater treatment device for FPSO comprises a treatment device platform, a wastewater treatment barrel is arranged on the top of the treatment device platform, a wastewater delivery pipe is connected to the wastewater treatment barrel, one end of the wastewater delivery pipe extends to the inside of the wastewater treatment barrel, a bracket plate is installed on the top of the treatment device platform, a gas delivery assembly is arranged on the bracket plate, the gas delivery assembly comprises a ventilation steel pipe arranged on the wastewater treatment barrel, a rotating drive assembly is arranged on the bracket plate, the rotating drive assembly is connected to the ventilation steel pipe, a regulating drainage assembly is connected to the bottom of the ventilation steel pipe, and an oil-water collection assembly is arranged on the top of the treatment device platform.

[0006] Preferably, a hair dryer is fixedly installed on the top of the bracket plate, an air supply pipe is provided on the hair dryer, a top rotating connecting sleeve is rotatably installed on the top of the ventilation steel pipe, and the top rotating connecting sleeve is connected to the air supply pipe.

[0007] Preferably, the outside of the ventilation steel pipe is connected to a plurality of air supply pipes, each of which is provided with a plurality of air outlet holes, and the gap between two adjacent air outlet holes gradually decreases.

[0008] Preferably, the rotary drive assembly includes a mounting bearing mounted on the top of the bracket plate, a rotating sleeve is fixedly sleeved in the mounting bearing, and the rotating sleeve is sleeved on the ventilation steel pipe.

[0009] Preferably, a driving motor is fixedly mounted on the top of the bracket plate, an output end of the driving motor is connected to a rotating gear, an outer portion of the rotating sleeve is fixedly sleeved with a driving gear, and a rack is meshed between the driving gear and the rotating gear.

[0010] Preferably, a limit driving groove is provided on the side wall of the rotating sleeve, a limit driving block is fixedly installed on the side wall of the ventilation steel pipe, and the limit driving block is slidably installed in the limit driving groove.

[0011] Preferably, the regulating drainage assembly includes a bottom driving barrel movably mounted on the bottom end of the ventilation steel pipe, a rotating cavity is provided on the inner wall of the bottom driving barrel, a plug-in limit block is fixedly mounted on the outer side of the ventilation steel pipe, the plug-in limit block is movably mounted in the rotating cavity, a plug-in limit groove is provided on the bottom inner wall of the rotating cavity, the plug-in limit block is matched with the plug-in limit groove, an annular connecting plate is fixedly mounted on the side of the bottom driving barrel, an arc-shaped leakage hole is provided on the top of the annular connecting plate, a drainage hole is provided at the bottom of the wastewater treatment barrel, the arc-shaped leakage hole is matched with the drainage hole, and a drainage pipe is arranged below the drainage hole.

[0012] Preferably, a telescopic cylinder is fixedly installed on the top of the bracket plate, an output end of the telescopic cylinder is connected to an annular driving sleeve, an annular sleeve is fixedly sleeved on the outer side of the ventilation steel pipe, and the annular driving sleeve is movably sleeved on the annular sleeve.

[0013] Preferably, the oil-water collection assembly includes a waste liquid collection box arranged on the top of the processing equipment platform, a drain pipe is arranged on one side of the waste liquid collection box, a drain port is opened on one side of the wastewater treatment barrel, a guide flow pipe is connected to one side of the drain port, and the guide flow pipe is located above the waste liquid collection box.

[0014] Preferably, a blocking groove is provided on the liquid discharge port, a blocking plate is plugged into the blocking groove, and an oil scraper is fixedly installed on the outside of the ventilation steel pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the wastewater treatment equipment for FPSO, when encountering rainy weather, transports the collected rainwater into the wastewater treatment barrel, and the air is discharged from multiple air outlets through the operation of the gas transmission component to form tiny bubbles, which are combined with oil droplets to increase buoyancy and make the oil droplets float, thereby quickly separating the oil in the water. During the gas transmission process, the rotation drive component is started to operate, driving the ventilation steel pipe to rotate, and the external air can be evenly delivered to the wastewater treatment barrel, and the oil in the wastewater can fully combine with the bubbles and float on the water surface, so that the separation effect is better; 2. In the present invention, after ventilation for a certain period of time, the baffle is opened, and the oil scraper rotates to scrape the oil floating on the upper part to one side, flowing out from the drain port, and flowing to the waste liquid collection box through the guide flow pipe, thereby achieving separation of oil and rainwater; 3. In the present invention, after the oil is separated, the drainage assembly is started to adjust and operate, driving the ventilation steel pipe to move downward, and the driving motor is operated again. At this time, the annular connecting plate rotates half a circle, and the arc-shaped leakage hole on the annular connecting plate is connected with the drainage hole. The rainwater in the wastewater treatment barrel can flow out and be drained along the drainage pipe, completing the treatment of wastewater containing a certain amount of oil and water. After the treatment, the wastewater is transported again through the wastewater delivery pipe to separate the oil and rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention in cross section; Figure 3 It is a schematic diagram of the structure of a partial cross-section of the present invention; Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention; Figure 5 It is a structural schematic diagram of a partial explosion of the present invention; Figure 6 For the present invention Figure 2 The structural diagram of part A in the figure; Figure 7 It is a schematic diagram of a partially exploded structure of the present invention; Figure 8 For the present invention Figure 2 Schematic diagram of the structure of part B.

[0017] In the figure: 1. treatment equipment platform; 2. wastewater treatment barrel; 3. wastewater delivery pipe; 4. bracket plate; 5. installation bearing; 6. rotating sleeve; 7. ventilation steel pipe; 8. limit driving groove; 9. limit driving block; 10. driving motor; 11. rotating gear; 12. driving gear; 13. rack; 14. top rotating connecting sleeve; 15. hair dryer; 16. air delivery pipe; 17. air delivery pipe; 18. air outlet; 19. drainage port; 20. blocking groove; 21. blocking plate; 22. guide flow pipe; 23. waste liquid collection box; 24. drainage pipe; 25. bottom driving barrel; 26. annular connecting plate; 27. arc leakage hole; 28. drainage hole; 29. ​​telescopic cylinder; 30. annular driving sleeve; 31. annular sleeve; 32. rotating chamber; 33. plug-in limit groove; 34. plug-in limit block; 35. oil scraper; 36. drainage pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of this patent, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0020] Example: Refer to Figure 1 Figure 2 , Figure 3 and Figure 4As shown, a wastewater treatment equipment for FPSO includes a treatment equipment platform 1, a wastewater treatment barrel 2 is arranged on the top of the treatment equipment platform 1, a wastewater delivery pipe 3 is connected to the wastewater treatment barrel 2, one end of the wastewater delivery pipe 3 extends to the inside of the wastewater treatment barrel 2, a bracket plate 4 is installed on the top of the treatment equipment platform 1, a gas delivery assembly is arranged on the bracket plate 4, the gas delivery assembly includes a ventilation steel pipe 7 arranged on the wastewater treatment barrel 2, a blower 15 is fixedly installed on the top of the bracket plate 4, a gas delivery pipe 16 is arranged on the blower 15, a top rotating connecting sleeve 14 is rotatably installed on the top of the ventilation steel pipe 7, the top rotating connecting sleeve 14 is connected to the gas delivery pipe 16, and a plurality of gas delivery pipes 17 are connected to the outside of the ventilation steel pipe 7, and the plurality of gas delivery pipes 17 are all opened A plurality of air outlet holes 18 are provided, and the gap between two adjacent air outlet holes 18 gradually decreases, and the collected rainwater is transported to the wastewater treatment barrel 2 through the wastewater conveying pipe 3. Through continuous conveying, the conveyed waste liquid stops conveying when it reaches the position of the blocking plate 21, and the blower 15 on the gas conveying component is started to operate. The blower 15 generates blowing air, which is sent to the air supply pipe 17 through the air conveying pipe 16 and the ventilation steel pipe 7, and finally discharged from the plurality of air outlet holes 18. The air discharged through the air outlet holes 18 forms tiny bubbles, and the bubbles combine with the oil droplets to increase the buoyancy and make the oil droplets float, so that the oil in the water can be quickly separated. The gap between the air outlet holes 18 gradually decreases outward, and the outer diameter is larger. By increasing the amount of air outlet, the wastewater outside can be fully filled with gas.

[0021] As a technical optimization solution of the present invention, refer to Figure 1 Figure 4 , Figure 5 and Figure 6As shown, a rotating drive assembly is provided on the bracket plate 4, and the rotating drive assembly is connected to the ventilation steel pipe 7. The rotating drive assembly includes a mounting bearing 5 installed on the top of the bracket plate 4, and a rotating sleeve 6 is fixedly sleeved in the mounting bearing 5, and the rotating sleeve 6 is sleeved on the ventilation steel pipe 7. A driving motor 10 is fixedly installed on the top of the bracket plate 4, and a rotating gear 11 is connected to the output end of the driving motor 10. A driving gear 12 is fixedly sleeved on the outside of the rotating sleeve 6, and a rack 13 is meshed between the driving gear 12 and the rotating gear 11. A limited driving groove 8 is provided on the side wall of the rotating sleeve 6, and a limited driving block 9 is fixedly installed on the side wall of the ventilation steel pipe 7. The limited driving block 9 is slidably installed in the limited driving groove 8. During the gas transmission process , start the driving motor 10 on the rotating driving assembly to run, drive the rotating gear 11 to rotate, and under the action of the rack 13 and the driving gear 12, drive the rotating sleeve 6 to rotate. The installed bearing 5 is arranged to facilitate the rotating sleeve 6 to rotate on the bracket plate 4. When the rotating sleeve 6 rotates, under the driving action of the limit driving groove 8 and the limit driving block 9, the ventilation steel pipe 7 is driven to rotate. The rotation of the ventilation steel pipe 7 can drive the rotation of multiple air supply pipes 17, and can evenly deliver the external air to the wastewater treatment barrel 2. The oil in the wastewater can fully combine with the bubbles and float on the water surface, and the separation effect is better. The top rotating connecting sleeve 14 can rotate on the ventilation steel pipe 7, and at the same time ensure that the ventilation steel pipe 7 is connected with the air supply pipe 16.

[0022] As a technical optimization solution of the present invention, refer to Figure 1 Figure 2 , Figure 4 and Figure 7 As shown, an oil-water collection assembly is arranged on the top of the processing equipment platform 1, and the oil-water collection assembly includes a waste liquid collection box 23 arranged on the top of the processing equipment platform 1, a drain pipe 24 is arranged on one side of the waste liquid collection box 23, a drain port 19 is arranged on one side of the wastewater treatment barrel 2, a guide flow pipe 22 is connected to one side of the drain port 19, and the guide flow pipe 22 is located above the waste liquid collection box 23, a blocking groove 20 is arranged on the drain port 19, and a blocking plate 21 is inserted on the blocking groove 20, and an oil scraper 35 is fixedly installed on the outside of the ventilation steel pipe 7. After ventilation for a certain period of time, the blocking plate 21 is opened, and the oil scraper 35 rotates, which can scrape the oil floating on the upper part to one side, flow out from the drain port 19, and flow into the waste liquid collection box 23 through the guide flow pipe 22, so as to realize the separation of oil and rainwater.

[0023] As a technical optimization solution of the present invention, refer to Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the bottom of the ventilation steel pipe 7 is connected with an adjustable drainage component, which includes a bottom driving barrel 25 movably mounted on the bottom end of the ventilation steel pipe 7, and a rotating chamber 32 is provided on the inner wall of the bottom driving barrel 25. A plug-in limit block 34 is fixedly mounted on the outer side of the ventilation steel pipe 7, and the plug-in limit block 34 is movably mounted in the rotating chamber 32. A plug-in limit groove 33 is provided on the inner wall of the bottom side of the rotating chamber 32, and the plug-in limit block 34 is adapted to the plug-in limit groove 33. An annular connecting plate 26 is fixedly mounted on the side of the bottom driving barrel 25, and an arc-shaped leakage hole 27 is provided on the top of the annular connecting plate 26. A drainage hole 28 is provided at the bottom of the wastewater treatment barrel 2, and the arc-shaped leakage hole 27 is adapted to the drainage hole 28. A drainage pipe 36 is arranged below the drainage hole 28. A telescopic cylinder 29 is fixedly mounted on the top of the bracket plate 4, and an annular driving sleeve 30 is connected to the output end of the telescopic cylinder 29. The outer side of the ventilation steel pipe 7 is fixedly sleeved with an annular sleeve 31, and the annular driving sleeve 30 is movably sleeved on the annular sleeve 31. When the oil is separated, the stop position of the ventilation steel pipe 7 is adjusted to ensure that the plug-in limit block 34 is located above the plug-in limit groove 33, and the telescopic cylinder 29 on the drainage assembly is started to operate to drive the ventilation steel pipe 7 to move downward, and the plug-in limit block 34 located in the rotating chamber 32 moves into the plug-in limit groove 33. After being plugged in place, the driving motor 10 is operated again to drive the ventilation steel pipe 7 to rotate half a circle. At this time, the annular connecting plate 26 rotates half a circle, and the arc leakage hole 27 on the annular connecting plate 26 is connected with the drainage hole 28. The rainwater in the wastewater treatment barrel 2 can flow out and can be discharged along the drainage pipe 36, completing the treatment of wastewater containing a certain amount of oil and water. After the treatment, the wastewater is transported through the wastewater conveying pipe 3 again to separate the oil and rainwater.

[0024] During use: During the process of transporting oil, the FPSO hull may encounter rainy weather. The collected rainwater is transported to the wastewater treatment barrel 2 through the wastewater delivery pipe 3. The blower 15 on the gas delivery component is started to run, and air is discharged from multiple air outlets 18 to form tiny bubbles. The bubbles combine with the oil droplets to increase buoyancy and make the oil droplets float up, so that the oil in the water can be quickly separated. During the gas delivery process, the drive motor 10 on the rotary drive component is started to run, which can drive the rotary sleeve 6 to rotate, thereby driving the ventilation steel pipe 7 to rotate. The rotation of the ventilation steel pipe 7 can drive multiple air delivery pipes 17 to rotate, and the external air can be evenly delivered to the wastewater treatment barrel 2. The oil in the wastewater can fully combine with the bubbles and float on the water surface, and the separation effect is better. After ventilation for a certain period of time, the blocking plate 21 is opened, and the floating oil scraper 35 rotates, which can scrape the upper floating oil to one side, flow out from the drain port 19, and flow to the waste liquid collection box 23 through the guide flow pipe 22, so as to achieve the separation of oil and rainwater; When the oil is separated, the telescopic cylinder 29 on the regulating drainage assembly is started to drive the ventilation steel pipe 7 to move downward, and the plug-in limit block 34 located in the rotating chamber 32 moves to the plug-in limit groove 33. After being plugged in place, the driving motor 10 is operated again to drive the ventilation steel pipe 7 to rotate half a circle. At this time, the annular connecting plate 26 rotates half a circle, and the arc-shaped leakage hole 27 on the annular connecting plate 26 is connected with the drainage hole 28. The rainwater in the wastewater treatment barrel 2 can flow out and be drained along the drainage pipe 36, completing the treatment of wastewater containing a certain amount of oil and water. After the treatment, the wastewater is transported through the wastewater delivery pipe 3 again to separate the oil and rainwater, which is convenient to use.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for FPSO, comprising a treatment device platform (1), characterized in that: A wastewater treatment barrel (2) is arranged on the top of the treatment equipment platform (1), a wastewater delivery pipe (3) is connected to the wastewater treatment barrel (2), one end of the wastewater delivery pipe (3) extends into the wastewater treatment barrel (2), a support plate (4) is installed on the top of the treatment equipment platform (1), a gas delivery assembly is arranged on the support plate (4), the gas delivery assembly comprises a ventilation steel pipe (7) arranged on the wastewater treatment barrel (2), a rotation drive assembly is arranged on the support plate (4), the rotation drive assembly is connected to the ventilation steel pipe (7), the bottom of the ventilation steel pipe (7) is connected to a regulating drainage assembly, and an oil-water collection assembly is arranged on the top of the treatment equipment platform (1).

2. A wastewater treatment equipment for FPSO according to claim 1, characterized in that: A hair dryer (15) is fixedly mounted on the top of the support plate (4), and an air supply pipe (16) is arranged on the hair dryer (15). A top rotating connecting sleeve (14) is rotatably mounted on the top of the ventilation steel pipe (7), and the top rotating connecting sleeve (14) is connected to the air supply pipe (16).

3. A wastewater treatment equipment for FPSO according to claim 2, characterized in that: The outside of the ventilation steel pipe (7) is connected to a plurality of air supply pipes (17), each of which is provided with a plurality of air outlet holes (18), and the gap between two adjacent air outlet holes (18) gradually decreases.

4. The wastewater treatment equipment for FPSO according to claim 1, characterized in that: The rotary drive assembly comprises a mounting bearing (5) mounted on the top of the bracket plate (4), a rotating sleeve (6) being fixedly sleeved in the mounting bearing (5), and the rotating sleeve (6) being sleeved on the ventilation steel pipe (7).

5. The wastewater treatment equipment for FPSO according to claim 4, characterized in that: A driving motor (10) is fixedly mounted on the top of the bracket plate (4); an output end of the driving motor (10) is connected to a rotating gear (11); a driving gear (12) is fixedly sleeved on the outside of the rotating sleeve (6); a rack (13) is meshed between the driving gear (12) and the rotating gear (11).

6. The wastewater treatment equipment for FPSO according to claim 4, characterized in that: The side wall of the rotating sleeve (6) is provided with a limit driving groove (8), the side wall of the ventilation steel pipe (7) is fixedly mounted with a limit driving block (9), and the limit driving block (9) is slidably mounted in the limit driving groove (8).

7. The wastewater treatment equipment for FPSO according to claim 1, characterized in that: The regulating drainage assembly comprises a bottom driving barrel (25) movably mounted on the bottom end of a ventilation steel pipe (7), the inner wall of the bottom driving barrel (25) being provided with a rotating cavity (32), a plug-in limit block (34) being fixedly mounted on the outer side of the ventilation steel pipe (7), the plug-in limit block (34) being movably mounted in the rotating cavity (32), a plug-in limit groove (33) being provided on the inner wall of the bottom side of the rotating cavity (32), the plug-in limit block (34) being matched with the plug-in limit groove (33), an annular connecting plate (26) being fixedly mounted on the side of the bottom driving barrel (25), an arc-shaped leakage hole (27) being provided on the top of the annular connecting plate (26), a drainage hole (28) being provided on the bottom of the wastewater treatment barrel (2), the arc-shaped leakage hole (27) being matched with the drainage hole (28), and a drainage pipe (36) being provided below the drainage hole (28).

8. The wastewater treatment equipment for FPSO according to claim 7, characterized in that: A telescopic cylinder (29) is fixedly mounted on the top of the support plate (4); an annular driving sleeve (30) is connected to the output end of the telescopic cylinder (29); an annular sleeve (31) is fixedly sleeved on the outer side of the ventilation steel pipe (7); and the annular driving sleeve (30) is movably sleeved on the annular sleeve (31).

9. The wastewater treatment equipment for FPSO according to claim 1, characterized in that: The oil-water collection assembly comprises a waste liquid collection box (23) arranged on the top of the processing equipment platform (1); a drainage pipe (24) is arranged on one side of the waste liquid collection box (23); a drainage port (19) is opened on one side of the waste water treatment barrel (2); a guide flow pipe (22) is connected to one side of the drainage port (19); and the guide flow pipe (22) is located above the waste liquid collection box (23).

10. The wastewater treatment equipment for FPSO according to claim 9, characterized in that: The liquid discharge port (19) is provided with a blocking groove (20), a blocking plate (21) is plugged into the blocking groove (20), and an oil scraper (35) is fixedly mounted on the outside of the ventilation steel pipe (7).

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