A wastewater treatment plant for an FPSO

Abstract

The application discloses a kind of wastewater treatment equipment for FPSO, including processing equipment platform, the top of the processing equipment platform is provided with wastewater treatment barrel, wastewater treatment barrel is connected with wastewater delivery pipe, one end of wastewater delivery pipe extends to wastewater treatment barrel inside, the top of the processing equipment platform is installed with support plate, gas delivery assembly is arranged on the support plate, in the application, the wastewater treatment equipment for FPSO, when rain weather is encountered, the collected rainwater is transported to wastewater treatment barrel, air is discharged from multiple air outlets by gas delivery assembly operation, to form micro-bubbles, bubbles combine with oil droplets, increase buoyancy, make oil droplets float, so that oil in water can be quickly separated, in the process of gas delivery, start rotating drive assembly operation, drive air pipe to rotate, can the external air be evenly sent to wastewater treatment barrel, oil in wastewater can be fully combined with bubble, float on water surface, and the separation effect is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, and particularly relates to a wastewater treatment equipment for FPSO. BACKGROUND

[0002] FPSO is a key facility for offshore oil development, which is mainly used for the exploitation, processing, storage and transportation of offshore oil, natural gas and other energy. FPSO can receive oil, gas and water mixture from the seabed oil well and process it to separate crude oil, natural gas and water. The qualified crude oil after processing is stored in the oil tank of FPSO, and the stored crude oil can be transported to land by shuttle tanker through the transportation system.

[0003] During the transportation process of the FPSO hull, the oil tank for storing oil often leaks oil during the transportation and shaking process. The surface oil will flow into the clamping plate with rainwater and finally flow into the sea. More oil flowing into the sea will pollute the seawater and affect marine life. Therefore, a wastewater treatment equipment for FPSO is proposed. SUMMARY

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

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] A wastewater treatment equipment for FPSO, comprising a treatment equipment platform, a wastewater treatment barrel is arranged on the top of the treatment equipment platform, a wastewater conveying pipe is connected to the wastewater treatment barrel, one end of the wastewater conveying pipe extends into the wastewater treatment barrel, a support plate is installed on the top of the treatment equipment platform, a gas conveying assembly is arranged on the support plate, the gas conveying assembly comprises a gas pipe arranged on the wastewater treatment barrel, a rotary driving assembly is arranged on the support plate and connected to the gas pipe, an adjusting drainage assembly is connected to the bottom of the gas pipe, and an oil and water collecting assembly is arranged on the top of the treatment equipment platform.

[0007] Preferably, a blower is fixedly installed on the top of the support plate, a gas conveying pipe is arranged on the blower, a top rotary connecting sleeve is rotatably installed at the top end of the gas pipe, and the top rotary connecting sleeve is in communication with the gas conveying pipe.

[0008] Preferably, a plurality of gas conveying pipes are in communication with the outside of the gas pipe, a plurality of gas outlets are arranged on each of the gas conveying pipes, and the gap between adjacent two gas outlets gradually decreases.

[0009] Preferably, the rotating drive assembly comprises a mounting bearing mounted on the top of the support plate, a rotating sleeve fixedly sleeved in the mounting bearing, and the rotating sleeve is sleeved on the air supply steel pipe.

[0010] Preferably, the top of the support plate is fixedly provided with a driving motor, the output end of the driving motor is connected with a rotating gear, the outer portion of the rotating sleeve is fixedly sleeved with a driving gear, and a rack is engaged between the driving gear and the rotating gear.

[0011] Preferably, the side wall of the rotating sleeve is provided with a limiting driving groove, and the side wall of the air supply steel pipe is fixedly provided with a limiting driving block which is slidingly installed in the limiting driving groove.

[0012] Preferably, the adjusting drainage assembly comprises a bottom driving barrel movably installed on the bottom end of the air supply steel pipe, a rotating cavity is formed in the inner wall of the bottom driving barrel, a plug-in limiting block is fixedly installed on the outer side of the air supply steel pipe and movably installed in the rotating cavity, a plug-in limiting groove is formed in the bottom side inner wall of the rotating cavity and matched with the plug-in limiting block, an annular connecting plate is fixedly installed on the side of the bottom driving barrel, an arc-shaped leakage hole is formed in the top of the annular connecting plate, a drainage hole is formed in the bottom of the wastewater treatment barrel and matched with the arc-shaped leakage hole, and a drainage pipe is arranged below the drainage hole.

[0013] Preferably, the top of the support plate is fixedly provided with a telescopic air cylinder, the output end of the telescopic air cylinder is connected with an annular driving sleeve, and the outer side of the air supply steel pipe is fixedly sleeved with an annular sleeve pipe, and the annular driving sleeve is movably sleeved on the annular sleeve pipe.

[0014] Preferably, the oil and water collecting assembly comprises a waste liquid collecting box arranged on the top of the treatment equipment platform, and a liquid discharge pipe is arranged on one side of the waste liquid collecting box, a liquid discharge port is formed in one side of the wastewater treatment barrel, a guide flow pipe is connected to one side of the liquid discharge port, and the guide flow pipe is located above the waste liquid collecting box.

[0015] Preferably, a blocking groove is formed in the liquid discharge port, a blocking plate is plugged into the blocking groove, and a floating oil scraping plate is fixedly installed on the outer portion of the air supply steel pipe.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] 1、In the present application, the wastewater treatment equipment for FPSO can transport the collected rainwater into the wastewater treatment barrel in rainy weather, run through the air supply assembly, discharge air from the plurality of air outlets to form micro bubbles, combine the bubbles with oil droplets to increase the buoyancy and make the oil droplets float, thereby quickly separating the oil in water, and in the process of air supply, the rotating drive assembly is started to run to drive the air supply steel pipe to rotate, thereby uniformly sending the external air into the wastewater treatment barrel, the oil in wastewater can be fully combined with the bubbles to float on the water surface, and the separation effect is better.

[0018] 2、The oil floating scraper rotates to scrape the oil floating on the upper part to one side, and the oil flows out of the liquid outlet and flows into the waste liquid collecting box through the guide flow pipe, so that the oil and rainwater are separated;

[0019] 3、When the oil separation is completed, the adjusting drainage assembly is started to drive the air supply steel pipe to move downward, and the driving motor is operated again, at this time, the annular connecting plate rotates by half a circle, the arc-shaped leakage hole on the annular connecting plate is connected with the drainage hole, the rainwater in the waste water treatment barrel can flow out and be drained along the drainage pipe, so that the waste water containing oil and water is treated, after the treatment, the waste water is transported through the waste water conveying pipe, and the separation and treatment of the oil and rainwater are carried out. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0021] Figure 2 It is a sectional structure schematic diagram of the present application;

[0022] Figure 3 It is a sectional structure schematic diagram of the present application;

[0023] Figure 4 It is a sectional structure schematic diagram of the present application;

[0024] Figure 5 It is a sectional structure schematic diagram of the present application;

[0025] Figure 6 It is a sectional structure schematic diagram of the present application; Figure 2 It is a sectional structure schematic diagram of the present application;

[0026] Figure 7 It is a sectional structure schematic diagram of the present application;

[0027] Figure 8 It is a sectional structure schematic diagram of the present application; Figure 2 It is a sectional structure schematic diagram of the present application;

[0028] In the figure: 1, processing equipment platform; 2, wastewater treatment barrel; 3, wastewater conveying pipe; 4, support plate; 5, mounting bearing; 6, rotating sleeve; 7, air pipe; 8, limiting driving groove; 9, limiting driving block; 10, driving motor; 11, rotating gear; 12, driving gear; 13, rack; 14, top rotating connecting sleeve; 15, air blower; 16, gas conveying pipe; 17, gas conveying pipe; 18, gas outlet; 19, liquid outlet; 20, blocking groove; 21, blocking plate; 22, guide flow pipe; 23, waste liquid collecting box; 24, liquid outlet pipe; 25, bottom driving barrel; 26, annular connecting plate; 27, arc-shaped leakage hole; 28, drain hole; 29, telescopic air cylinder; 30, annular driving sleeve; 31, annular sleeve; 32, rotating cavity; 33, plug-in limiting groove; 34, plug-in limiting block; 35, floating oil scraper; 36, drain pipe. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] In the description of the present patent, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for description purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present patent can be understood according to the specific circumstances.

[0031] Embodiment: Reference Figure 1 Figure 2 , Figure 3 and Figure 4As shown, a wastewater treatment device for FPSO, including a treatment device platform 1, the top of the treatment device platform 1 is provided with a wastewater treatment barrel 2, the wastewater treatment barrel 2 is connected with a wastewater conveying pipe 3, one end of the wastewater conveying pipe 3 extends to the inside of the wastewater treatment barrel 2, the top of the treatment device platform 1 is installed with a support plate 4, the support plate 4 is provided with a gas conveying assembly, the gas conveying assembly includes a vent steel pipe 7 arranged on the wastewater treatment barrel 2, the top of the support plate 4 is fixedly installed with a blower 15, the blower 15 is provided with a gas conveying pipe 16, the top end of the vent steel pipe 7 is rotatably installed with a top rotary connecting sleeve 14, the top rotary connecting sleeve 14 is communicated with the gas conveying pipe 16, the vent steel pipe 7 is communicated with a plurality of gas conveying pipes 17 outside, a plurality of gas outlet holes 18 are formed in the plurality of gas conveying pipes 17, the gap between adjacent two gas outlet holes 18 gradually decreases, the collected rainwater is conveyed into the wastewater treatment barrel 2 through the wastewater conveying pipe 3, through continuous conveying, the conveying waste liquid stops conveying when reaching the position of the blocking plate 21, the blower 15 on the gas conveying assembly is started to operate, the blower 15 generates air blowing, which is sent into the gas conveying pipe 17 through the gas conveying pipe 16 and the vent steel pipe 7, and finally discharged from the plurality of gas outlet holes 18, the air discharged from the gas outlet holes 18 forms micro bubbles, the bubbles combine with oil droplets to increase the buoyancy, so that the oil droplets float up, thereby the oil in the water can be quickly separated, the gap between the gas outlet holes 18 gradually decreases outward, the diameter of the outside is larger, by increasing the amount of gas outlet, the outside wastewater can be fully filled with gas.

[0032] As a technical optimization scheme of the present application, refer to Figure 1 Figure 4 、 Figure 5 and Figure 6As shown in the figure, the support plate 4 is provided with a rotary drive assembly connected with the air steel pipe 7, the rotary drive assembly comprises a mounting bearing 5 mounted on the top of the support plate 4, a rotary sleeve 6 fixedly sleeved in the mounting bearing 5, the rotary sleeve 6 is sleeved on the air steel pipe 7, a driving motor 10 is fixedly installed on the top of the support plate 4, the output end of the driving motor 10 is connected with a rotating gear 11, a driving gear 12 is fixedly sleeved on the outside of the rotary sleeve 6, a rack 13 is engaged between the driving gear 12 and the rotating gear 11, a limiting driving groove 8 is formed in the side wall of the rotary sleeve 6, a limiting driving block 9 is fixedly installed on the side wall of the air steel pipe 7, the limiting driving block 9 is slidingly installed in the limiting driving groove 8, in the process of gas conveying, the driving motor 10 on the rotary drive assembly is started to operate, the rotating gear 11 is driven to rotate, under the action of the rack 13 and the driving gear 12, the rotary sleeve 6 is driven to rotate, the mounting bearing 5 is arranged to facilitate the rotation of the rotary sleeve 6 on the support plate 4, when the rotary sleeve 6 rotates, under the driving action of the limiting driving groove 8 and the limiting driving block 9, the air steel pipe 7 is driven to rotate, the rotation of the air steel pipe 7 can drive the plurality of air supply pipes 17 to rotate, and the external air can be uniformly sent into the wastewater treatment barrel 2, the oil in the wastewater can be fully combined with the bubbles to float on the water surface, and the separation effect is better, the top rotary connecting sleeve 14 is arranged to rotate on the air steel pipe 7, and the air steel pipe 7 is ensured to be in communication with the gas conveying pipe 16.

[0033] As a technical optimization scheme of the present application, referring to Figure 1 Figure 2 , Figure 4 and Figure 7 As shown in the figure, the top of the treatment equipment platform 1 is provided with an oil-water collecting assembly, the oil-water collecting assembly comprises a waste liquid collecting box 23 arranged on the top of the treatment equipment platform 1, a liquid discharge pipe 24 is arranged on one side of the waste liquid collecting box 23, a liquid discharge port 19 is formed in one side of the wastewater treatment barrel 2, a guide flow pipe 22 is connected on one side of the liquid discharge port 19, the guide flow pipe 22 is located above the waste liquid collecting box 23, a blocking groove 20 is formed on the liquid discharge port 19, a blocking plate 21 is inserted into the blocking groove 20, a floating oil scraping plate 35 is fixedly installed on the outside of the air steel pipe 7, after a certain time of aeration, the blocking plate 21 is opened, the floating oil scraping plate 35 is rotated, the oil floating on the upper portion can be scraped to one side, flows out from the liquid discharge port 19, and flows into the waste liquid collecting box 23 through the guide flow pipe 22, so that the separation of oil and rainwater is realized.

[0034] As a technical optimization scheme of the present application, referring to Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the bottom of the vent steel pipe 7 is connected with an adjusting drainage assembly, the adjusting drainage assembly comprises a bottom driving barrel 25 movably mounted on the bottom end of the vent steel pipe 7, the inner wall of the bottom driving barrel 25 is provided with a rotating cavity 32, the outer side of the vent steel pipe 7 is fixedly provided with a plug-in limiting block 34, the plug-in limiting block 34 is movably mounted in the rotating cavity 32, the bottom side inner wall of the rotating cavity 32 is provided with a plug-in limiting groove 33, the plug-in limiting block 34 is matched with the plug-in limiting groove 33, the side of the bottom driving barrel 25 is fixedly provided with an annular connecting plate 26, the top of the annular connecting plate 26 is provided with an arc-shaped leakage hole 27, the bottom of the wastewater treatment barrel 2 is provided with a drainage hole 28, the arc-shaped leakage hole 27 is matched with the drainage hole 28, the lower side of the drainage hole 28 is provided with a drainage pipe 36, the top of the support plate 4 is fixedly provided with a telescopic air cylinder 29, the output end of the telescopic air cylinder 29 is connected with an annular driving sleeve 30, the outer side of the vent steel pipe 7 is fixedly sleeved with an annular sleeve pipe 31, the annular driving sleeve 30 is movably sleeved on the annular sleeve pipe 31, after the oil separation is completed, the stop position of the vent steel pipe 7 is adjusted, the plug-in limiting block 34 is ensured to be located at the upper position of the plug-in limiting groove 33, the telescopic air cylinder 29 on the adjusting drainage assembly is started to operate, the vent steel pipe 7 is driven to move downward, the plug-in limiting block 34 located in the rotating cavity 32 is moved into the plug-in limiting groove 33, after the plug-in is in place, the driving motor 10 is operated again, the vent steel pipe 7 is driven to rotate by half a turn, at this time, the annular connecting plate 26 rotates by half a turn, the arc-shaped leakage hole 27 on the annular connecting plate 26 is communicated with the drainage hole 28, the rainwater in the wastewater treatment barrel 2 can flow out, and can be completely drained along the drainage pipe 36, the wastewater containing oil and water is treated, after the treatment, the wastewater is conveyed through the wastewater conveying pipe 3 again, and the oil and rainwater are separated and treated.

[0035] In use: in the process of transporting oil, the FPSO hull encounters rain weather, the collected rainwater is conveyed into the wastewater treatment barrel 2 through the wastewater conveying pipe 3, the air blower 15 on the gas conveying assembly is started to operate, air is discharged from the plurality of air outlets 18 to form micro bubbles, the bubbles combine with oil droplets to increase the buoyancy, so that the oil droplets float upward, thereby the oil in water can be quickly separated, in the process of gas conveying, the driving motor 10 on the rotating driving assembly is started to operate, the rotating sleeve 6 can be driven to rotate, thereby the vent steel pipe 7 is driven to rotate, the vent steel pipe 7 rotating can drive the plurality of air conveying pipes 17 to rotate, so that the external air can be uniformly conveyed into the wastewater treatment barrel 2, the oil in the wastewater can be fully combined with the bubbles to float on the water surface, and the separation effect is better, after a certain time of ventilation, the baffle plate 21 is opened, the floating oil scraper 35 rotates to scrape the oil floating on the upper portion to one side, flows out from the liquid outlet 19, and flows into the waste liquid collecting box 23 through the guide flow pipe 22, thereby the oil and rainwater are separated;

[0036] When the oil is separated, the telescopic cylinder 29 on the drainage adjusting assembly is started to operate, driving the air pipe 7 to move downwards, the plug-in limiting block 34 in the rotating cavity 32 moves into the plug-in limiting groove 33, after being plugged in, the driving motor 10 operates again, driving the air pipe 7 to rotate half a circle, at this time, the annular connecting plate 26 rotates half a circle, the arc-shaped leakage hole 27 on the annular connecting plate 26 is communicated with the drainage hole 28, the rainwater in the wastewater treatment barrel 2 can flow out, and can be drained along the drainage pipe 36, the wastewater treatment containing oil and water is completed, after the treatment, the wastewater is conveyed through the wastewater conveying pipe 3, the oil and the rainwater are separated and treated, and the use is convenient.

[0037] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or action from another, and do not necessarily require or imply that these entities or actions exist in any actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0038] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment plant for an FPSO comprising a treatment plant platform (1), characterised in that, The top of the treatment equipment platform (1) is provided with a wastewater treatment barrel (2), a wastewater conveying pipe (3) is connected to the wastewater treatment barrel (2), one end of the wastewater conveying 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 conveying assembly is arranged on the support plate (4), the gas conveying assembly comprises a vent steel pipe (7) arranged on the wastewater treatment barrel (2), a rotating drive assembly is arranged on the support plate (4) and connected with the vent steel pipe (7), an adjusting drainage assembly is connected to the bottom of the vent steel pipe (7), an oil-water collecting assembly is arranged on the top of the treatment equipment platform (1), a plurality of gas conveying pipes (17) are connected to the outside of the vent steel pipe (7), a plurality of gas outlets (18) are formed in the gas conveying pipes (17), the gaps between the gas outlets (18) gradually decrease from inside to outside, and the diameter of the outside is larger, the adjusting drainage assembly comprises a bottom driving barrel (25) movably installed on the bottom end of the vent steel pipe (7), a rotating cavity (32) is formed in the inner wall of the bottom driving barrel (25), a plug-in limiting block (34) is fixedly installed on the outside of the vent steel pipe (7), the plug-in limiting block (34) is movably installed in the rotating cavity (32), a plug-in limiting groove (33) is formed in the bottom inner wall of the rotating cavity (32), the plug-in limiting block (34) is matched with the plug-in limiting groove (33), an annular connecting plate (26) is fixedly installed on the side of the bottom driving barrel (25), an arc-shaped leakage hole (27) is formed in the top of the annular connecting plate (26), a drainage hole (28) is formed in the bottom of the wastewater treatment barrel (2), the arc-shaped leakage hole (27) is matched with the drainage hole (28), a drainage pipe (36) is arranged below the drainage hole (28), a telescopic air cylinder (29) is fixedly installed on the top of the support plate (4), an annular driving sleeve (30) is connected to the output end of the telescopic air cylinder (29), an annular sleeve (31) is fixedly sleeved on the outside of the vent steel pipe (7), and the annular driving sleeve (30) is movably sleeved on the annular sleeve (31).

2. A wastewater treatment plant for an FPSO as claimed in claim 1, characterised in that, A hair dryer (15) is fixedly installed on the top of the support plate (4), a gas conveying pipe (16) is arranged on the hair dryer (15), a top rotating connecting sleeve (14) is rotatably installed at the top end of the vent steel pipe (7), and the top rotating connecting sleeve (14) is in communication with the gas conveying pipe (16).

3. A wastewater treatment plant for FPSO as claimed in claim 1, wherein, The rotating drive assembly comprises a mounting bearing (5) installed on the top of the support plate (4), a rotating sleeve (6) is fixedly sleeved in the mounting bearing (5), and the rotating sleeve (6) is sleeved on the vent steel pipe (7).

4. A wastewater treatment plant for an FPSO as claimed in claim 3, characterised in that, A driving motor (10) is fixedly installed on the top of the support plate (4), a rotating gear (11) is connected to the output end of the driving motor (10), an driving gear (12) is fixedly sleeved on the outside of the rotating sleeve (6), and a rack (13) is engaged between the driving gear (12) and the rotating gear (11).

5. A wastewater treatment plant for FPSO as claimed in claim 3 wherein, The side wall of the rotating sleeve (6) is provided with a limiting driving groove (8), and the side wall of the air pipe (7) is fixedly provided with a limiting driving block (9) which is slidingly installed in the limiting driving groove (8).

6. A wastewater treatment plant for FPSO as claimed in claim 1 wherein, The oil-water collecting assembly comprises a waste liquid collecting box (23) arranged on the top of the treatment equipment platform (1), one side of the waste liquid collecting box (23) is provided with a liquid discharge pipe (24), one side of the wastewater treatment barrel (2) is provided with a liquid discharge opening (19), one side of the liquid discharge opening (19) is connected with a guide flow pipe (22), and the guide flow pipe (22) is located above the waste liquid collecting box (23).

7. A wastewater treatment plant for an FPSO as claimed in claim 6, characterised in that, The liquid discharge opening (19) is provided with a blocking groove (20), the blocking groove (20) is inserted with a blocking plate (21), and the outer portion of the air pipe (7) is fixedly provided with a floating oil scraping plate (35).

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