Temperature-controllable liquid membrane separation equipment
Technical Field
The invention relates to the field of liquid membrane separation equipment, in particular to temperature-controllable liquid membrane separation equipment.
Background
The membrane separation equipment can distinguish liquid through built-in membranes of different materials, the mixed liquid is re-divided, and the membrane separation equipment is widely applied to the fields of food and chemical industry and the like, wherein the temperature-controllable liquid membrane separation equipment can control the temperature, the temperature during separation is controlled in a required temperature range, further the separation effect can be enhanced, the occurrence probability of dangerous events such as liquid combustion and the like is reduced, the membrane separation equipment is widely applied to the field of oil separation, after oil exploitation, a mixture containing oil and water is often obtained, and the separation is needed through the membrane separation equipment, but if the oil is exploited in a desert, sand is easy to mix in the liquid, and when the membrane separation is carried out, the sand is easy to accumulate on the upper surface of the separation membrane, and the separation membrane is blocked, so that the liquid is difficult to accumulate through the separation membrane, the separation speed is greatly reduced, and the separation work is influenced.
The invention has the following patent names: the patent application No. CN202110110952.9 discloses a technology for embedding a sand-lifting structure in the inner layer of a membrane body, wherein the sand-lifting structure is impacted by liquid falling from the top, is intermittently pressed and rebounds through a push spring, in the rebound process, a compression column and a bottom block are relatively displaced through inertia, water in a water absorption block is rapidly extruded and outwards sprayed on the membrane body, sand on the upper surface of the membrane body is pushed away, the membrane body covered by the sand is restored to pass through again, and the separation work can be rapidly and stably performed.
However, the sand-raising structure is embedded in the inner layer of the membrane body, and the following defects exist in actual use:
1. the sand-pumping structure is used for spraying water upwards, sand on the surface of the film body provided with the sand-pumping structure can only be pumped upwards, the sand cannot be cleaned out of the surface of the film body, and under the condition that more sand is mixed in petroleum, the surface of the film body is covered quickly, and even if the sand on the surface part of the film body is lifted, the trafficability of the film body to water is difficult to recover;
2. the sand raising structure comprises a supporting column, a fitting frame, an upward pushing spring, a stress plate and a plug, and is large in overall structure, difficult to embed and arrange on a film body with a thin thickness and difficult to produce in practical application.
Therefore, it is necessary to provide a temperature-controllable liquid membrane separation apparatus to solve the above problems.
Disclosure of Invention
The invention aims to provide a temperature-controllable liquid membrane separation device, which aims to solve the problems that even if sand at the part of the surface of a membrane is lifted up by the sand lifting structure, the trafficability of the membrane body to water is difficult to recover and the sand lifting structure is difficult to produce in the practical application process.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a controllable liquid membrane splitter, includes the separator box, the upper end of separator box is provided with the inlet pipe, the lower extreme of separator box is provided with water discharge pipeline and oil discharge pipeline, the intercommunication is provided with the temperature controller on the inlet pipe, the inside from top to bottom of inlet pipe is fixed in proper order and is provided with first baffle, second baffle, third baffle, form the ingredient cavity between the inside of upper end of first baffle and separator box, form first separation cavity between first baffle and the second baffle, form the temporary storage cavity between second baffle and the third baffle, the fixed welding of lower extreme inner wall middle part of separator box has vertical baffle, form the diffuse outlet between the upper end of vertical baffle and the third baffle lower surface, the inside oil collection cavity and the second separation cavity that divide into of lower extreme of separator box into left and right sides of vertical baffle, the inside fixed mounting of lower extreme of second separation cavity has the second membrane, the below of second membrane is provided with water collection cavity, oil discharge pipeline and water discharge pipeline communicate respectively and set up at the lower extreme of oil collection cavity and water collection cavity;
the sand collecting box is fixedly arranged on the left side surface and the right side surface of the separating box, a sand collecting cavity is arranged in the sand collecting box, collecting ports are formed in the lower ends of the left side and the right side of the first separating cavity, the collecting ports are communicated between the sand collecting cavity and the first separating cavity, the collecting ports are positioned at the upper end of the sand collecting cavity, three through grooves penetrating up and down are formed in the second partition plate, a rotary supporting rod is rotatably connected in the middle through groove through a rotary supporting shaft, a filter box is fixedly welded at the upper end of the rotary supporting rod, the upper side of the filter box is open, a first membrane body is arranged in the filter box, a plurality of round holes penetrating up and down are formed in the bottom of the filter box, and two sides of the first membrane body correspond to the two collecting ports;
the utility model discloses a feed device, including dividing material cavity, feed device, inlet pipe, inclined hole, rotary plate, rubber layer, rotor plate rotation setting in the branch material cavity, the diameter of rubber layer equals the internal diameter of branch material cavity, the fixed welding of upper surface of rotor plate has the blade, the blade is provided with a plurality ofly, be provided with the inclined hole of slope on the outer lane wall of branch material cavity, the one end and the inlet pipe intercommunication of inclined hole, the inside of other end intercommunication branch material cavity, and the inside one end correspondence of inclined hole intercommunication branch material cavity is in the side of blade.
Preferably, a blocking plate is arranged at the position of the collecting opening, a hinge seat is fixedly welded on the inner wall of the upper end of the collecting opening, the upper end of the blocking plate is rotationally connected to the hinge seat through a hinge shaft, and the lower end of the blocking plate is movably attached to the side face of the second partition plate.
Preferably, the bottom in sand collection chamber is provided with the sand export, and the sand export runs through to the lower surface of sand collection box, sealed being provided with the sprue in the sand export, the upper end middle part fixedly connected with connecting rod of sprue, the upper end fixedly connected with dog of connecting rod, fixedly connected with waterproof electric putter on the lower extreme inner wall in sand collection chamber, waterproof electric putter's upper end fixed connection is in the bottom surface of dog, one side of dog and the one side that the barrier plate kept away from first film body are located same vertical face, the one side upper end position that the barrier plate kept away from first film body installs material sensor.
Preferably, the lower surface fixing of filter cassette is provided with the rubber sleeve, and the rubber sleeve sets up around filter cassette a week, and the lower extreme fixed mounting of rubber sleeve is at the upper surface of second baffle, both ends all fixed welding has the spring about the lower surface of filter cassette, the lower extreme fixed welding of spring is at the upper surface of second baffle.
Preferably, a connecting pipeline is fixedly arranged on the side face of the separation box, the upper end of the connecting pipeline is communicated with the inner part of the lower end of the temporary storage chamber, and the lower end of the connecting pipeline is communicated with the inner part of the lower end of the second separation chamber.
Preferably, the bottom surface of the lower end of the sand collecting cavity is provided with a first inclined surface, and the first inclined surface is inclined from top to bottom in a direction from the inner wall of the sand collecting cavity to the sand outlet.
Preferably, a second inclined surface is fixedly arranged at the upper end of the blocking piece, and the second inclined surface is inclined from top to bottom from the middle part of the blocking piece towards the edge of the blocking piece.
Preferably, the upper surface of the stop block is provided with a third inclined surface, and the third inclined surface inclines from top to bottom from one end close to the stop block and close to the stop plate to one end far away from the stop plate.
Preferably, the oil discharge pipeline and the water discharge pipeline are both provided with electromagnetic valves.
Preferably, the lower surface of the separation box is fixedly provided with supporting legs.
The invention has the technical effects and advantages that:
when the mixture is intermittently discharged into the first separation chamber from the bottom of the first feeding hole or the bottom of the second feeding hole, the mixture can impact the left side upper surface or the right side upper surface of the first membrane body, so that the first membrane body, the filtering box and the rotating support rod integrally rotate and incline to the collecting opening by taking the rotating support shaft as an axis, sand on the upper surface of the first membrane body flows into the sand collecting chamber through the collecting opening to be stored, the purpose of separating sand is realized, the intermittent left-right inclination of the first membrane body avoids the phenomenon that sand is gathered on the upper surface of the first membrane body to reduce the trafficability of the first membrane body to water and petroleum, the structure is matched with the first membrane body to be arranged, the sand is not required to be embedded on the first membrane body to be used, and the sand separation device is simple in production and high in practicability;
when the first membrane body is inclined, the mixture of sand, oil and water pushes the blocking plate to rotate by taking the hinged shaft as an axis, so that the mixture of sand, oil and water enters the sand collecting cavity through the collecting opening, and when the mass in a specific volume is measured, the density of the sand is higher than that of the oil and water, therefore, when the mixture of sand, oil and water enters the sand collecting cavity, the sand firstly sinks towards the inner part of the lower end of the sand collecting cavity due to the higher density of the sand, and the positions of the oil and water are relatively close to the collecting opening, so that when the collecting opening is closed in a circulating way, the excessive oil and water in the sand collecting cavity can flow back into the first separating cavity again through the collecting opening, and the sand collecting cavity can be finally filled with the sand, and the content of the water and the oil contained in the sand collecting cavity after the sand collecting cavity is filled with the sand is extremely low, therefore, the opening and closing mechanism provided in the invention realizes separation among the sand, the oil and the water, and the content of the oil and the water mixed in the sand is greatly reduced;
the material sensor can be used for monitoring whether sand in the sand collecting cavity is full, if the sand in the sand collecting cavity is full, the waterproof electric push rod is started, the waterproof electric push rod pushes the baffle to move upwards to block one surface of the baffle, which is far away from the first membrane body, so that the baffle is prevented from rotating around the hinge shaft, the baffle is moved upwards while being driven to move upwards through the connecting rod, the blocking block is moved out of the sand outlet, at the moment, the collecting port is closed, the sand outlet is opened, sand in the sand collecting cavity can be discharged through the sand outlet, the aim of regular cleaning is fulfilled, the collecting port is synchronously closed in the process of cleaning the sand in the sand collecting cavity, and the waste phenomenon caused by mixing of petroleum and water into the sand collecting cavity and being discharged is avoided;
based on the synchronous closing of the collecting ports in the process of cleaning the sand in the sand collecting cavity, the mixture of the petroleum, the sand and the water can be continuously discharged into the first separation cavity for treatment without worrying about leakage of the petroleum and the water;
the invention realizes the purpose of separating oil and water, and the position communicated with the second separation chamber based on the connecting pipeline is arranged at the lower end of the second separation chamber, so that the water in the just-entered oil and water mixture downwards enters the water collection chamber from the second membrane body, the oil in the upper end of the second separation chamber is kept to the greatest extent, and the separation effect of the oil and the water is improved.
Drawings
FIG. 1 is a schematic diagram of a temperature-controllable liquid membrane separation device according to the present invention.
Fig. 2 is a schematic structural view of the first film body of the present invention when being inclined.
Fig. 3 is a schematic view of the sand outlet of the present invention when opened.
Fig. 4 is an enlarged schematic view of a part of the structure of fig. 1 according to the present invention.
Fig. 5 is an enlarged schematic view of the structure a in fig. 4 according to the present invention.
Fig. 6 is a schematic view of the external structure of the material distributing chamber of the present invention.
FIG. 7 is a schematic view of the inside of the dispensing chamber according to the present invention.
FIG. 8 is a schematic view of another view of the inside of the dispensing chamber of the present invention.
In the figure: 1. a separation box; 2. a feed pipe; 3. a material distributing chamber; 4. a first separator; 5. a first separation chamber; 6. a sand collection box; 7. a sand collection chamber; 8. a first film body; 9. a second separator; 10. a pass through slot; 11. a diffuse outlet; 12. a third separator; 13. a temporary storage chamber; 14. a connecting pipe; 15. a second separation chamber; 16. a vertical partition; 17. a second film body; 18. a petroleum collection chamber; 19. a water collection chamber; 20. a water discharge pipe; 21. a petroleum discharge pipe; 22. a support leg; 23. an inclined hole; 24. a blade; 25. a rotating plate; 26. a first feed hole; 27. a rotating lever; 28. a second feed hole; 29. a rubber layer; 30. a spring; 31. a filter box; 32. a round hole; 33. a rubber sleeve; 34. a material sensor; 35. a blocking plate; 36. rotating the support rod; 37. rotating the supporting shaft; 38. a stop block; 39. a third inclined surface; 40. a connecting rod; 41. waterproof electric push rod; 42. a sand outlet; 43. blocking; 44. a hinge shaft; 45. and a temperature controller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a temperature-controllable liquid membrane separation device as shown in fig. 1-8, which comprises a separation box 1, wherein a feed pipe 2 is arranged at the upper end of the separation box 1, a water discharge pipeline 20 and a petroleum discharge pipeline 21 are arranged at the lower end of the separation box 1, when a mixture of petroleum, water and sand is filtered, the mixture of petroleum, water and sand enters the separation box 1 from the feed pipe 2 to be filtered, filtered water is discharged from the water discharge pipeline 20, petroleum is discharged from the petroleum discharge pipeline 21, a temperature controller 45 is communicated with the feed pipe 2, a refrigerator, an electric heating plate and the like are arranged in the temperature controller 45, and the mixture entering the feed pipe 2 is refrigerated or heated to control the temperature, so that the temperature during separation is controlled within a required temperature range, and the separation effect is improved.
The inside from top to bottom at inlet pipe 2 fixedly is provided with first baffle 4, second baffle 9, third baffle 12 in proper order, form branch material cavity 3 between the inside upper end of first baffle 4 and separator tank 1, divide material cavity 3 to be circular slot column structure, the bottom surface of branch material cavity 3 is provided with first feed port 26 and the second feed port 28 of bilateral symmetry distribution, the lower extreme of first feed port 26 and second feed port 28 all communicates in first separator chamber 5, divide material cavity 3 bottom surface middle part to rotate and be connected with dwang 27, the upper end fixedly connected with dwang 25 of dwang 27, dwang 25 is half circular structure, the fixed rubber layer 29 that is provided with in lower surface of dwang 25 rotates and sets up in branch material cavity 3, the diameter of rubber layer 29 equals the internal diameter of branch material cavity 3, the fixed welding of upper surface of dwang 25 has blade 24, the blade 24 is provided with a plurality ofly, be provided with inclined hole 23 on the outer lane wall of branch material cavity 3, the one end and inlet pipe 2 intercommunication of inclined hole 23, the inside of other end intercommunication material cavity 3, the inside of branch material cavity 23 just, the inside of branch material cavity 3 is the inside the corresponding baffle 9 of a partition plate 3, form between the inside of first baffle 9.
When the mixture in the feed pipe 2 enters the inside of the distribution chamber 3 through the inclined hole 23, the side surface of the blade 24 is impacted, so that the rotating plate 25 rotates in the distribution chamber 3 by taking the rotating rod 27 as an axis, and the upper end of the first feed hole 26 or the second feed hole 28 is intermittently opened or closed when the rotating plate 25 rotates because the rotating plate 25 is of a semicircular structure, thereby achieving the purpose of controlling the intermittent discharge of the mixture into the first separation chamber 5 from the bottom of the first feed hole 26 or the bottom of the second feed hole 28.
The sand collecting boxes 6 are fixedly arranged on the left side surface and the right side surface of the separating box 1, the sand collecting cavities 7 are arranged in the sand collecting boxes 6, collecting ports are arranged at the lower ends of the left side and the right side of the first separating cavity 5 and communicated between the sand collecting cavities 7 and the first separating cavity 5, the collecting ports are positioned at the upper ends of the sand collecting cavities 7, three through grooves 10 penetrating up and down are arranged on the second partition plate 9, a rotary supporting rod 36 is rotatably connected in the middle through groove 10 through a rotary supporting shaft 37, a filter box 31 is fixedly welded at the upper end of the rotary supporting rod 36, the upper part of the filter box 31 is opened, a first membrane body 8 is arranged in the filter box 31, a plurality of round holes 32 penetrating up and down are arranged at the bottom of the filter box 31, and two sides of the first membrane body 8 correspond to the two collecting ports;
when the mixture is intermittently discharged into the first separation chamber 5 from the bottom of the first feed hole 26 or the bottom of the second feed hole 28, the mixture can impact on the left side upper surface or the right side upper surface of the first membrane body 8, so that the first membrane body 8, the filter box 31 and the rotary support rod 36 are integrally rotated and inclined to the collecting opening by taking the rotary support shaft 37 as an axis, sand on the upper surface of the first membrane body 8 flows into the sand collecting cavity 7 through the collecting opening to be stored, the purpose of separating sand is achieved, and the phenomenon that sand is accumulated on the upper surface of the first membrane body 8 to reduce the trafficability of the first membrane body 8 to water and petroleum is avoided due to the intermittent left-right inclination of the first membrane body 8. And this structure cooperates first membrane body 8 to set up, need not to imbed and use on the first membrane body 8, and simple production, the practicality is strong.
The first membrane body 8 can use complex film or ceramic membrane etc. still can use other suitable filtration membrane, and mainly include porous supporting layer when the first membrane body 8 uses complex film, the aperture of porous supporting layer can be adjusted according to actual demand, in order to reach the purpose that first membrane body 8 can supply water and oil to pass through, because water and oil can pass through first membrane body 8, and sand is filtered out at the upper surface of first membrane body 8, in order to avoid getting into the below of first membrane body 8 from the side of first membrane body 8 when first membrane body 8 swings about, fixed rubber sleeve 33 that is provided with in the lower surface of filter box 31, rubber sleeve 33 surrounds filter box 31 a week setting, the lower extreme fixed mounting of rubber sleeve 33 is at the upper surface of second baffle 9, rubber sleeve 33 has certain elastic expansion ability, neither influence first membrane body 8 and swing about, can stop again that the mixture in the sand collection chamber 7 gets into first membrane body 8 below, in order to improve the stability of first membrane body 8 swing about, in order to keep the first membrane body 8 to press the membrane body 30 to the first side of side, the spring body 30 is fixed at the lower surface of filter box 31 when the first membrane body 30 is fixed about, the second membrane body 30 is held at the end of the first membrane body 30 when the side of the membrane body 30 is fixed to the side, the first membrane body 30 is fixed at the end of the side 30 when the membrane is fixed to the side, the first membrane body 30 is welded to the end is fixed to the side, the end 30 is fixed to the side, and the lower surface of the first membrane 30 is stable.
For conveniently cleaning sand in the sand collecting cavity 7 and preventing the sand from flowing back into the first separation chamber 5, a cleaning mechanism is arranged at the bottom of the sand collecting cavity 7, an opening and closing mechanism is arranged at the upper end of the sand collecting cavity 7, and the specific setting of the opening and closing mechanism is as follows:
a blocking plate 35 is arranged at the position of the collecting opening, a hinge seat is fixedly welded on the inner wall of the upper end of the collecting opening, the upper end of the blocking plate 35 is rotatably connected to the hinge seat through a hinge shaft 44, and the lower end of the blocking plate 35 is movably attached to the side face of the second partition plate 9; when the first membrane body 8 is inclined, the mixture of sand, oil and water pushes the blocking plate 35 to rotate about the hinge shaft 44, so that the mixture of sand, oil and water enters the sand collecting chamber 7 through the collecting opening, and when the mass in a specific volume is measured, the density of sand is greater than that of oil and water, so that the mixture of sand, oil and water enters the sand collecting chamber 7, due to the greater density of sand, the sand first sinks toward the inside of the lower end of the sand collecting chamber 7, and the oil and water are located relatively close to the collecting opening, so that the excessive oil and water in the sand collecting chamber 7 flows back into the first separation chamber 5 again through the collecting opening when the circulation is opened and closed, and the sand collecting chamber 7 is finally filled with sand, and the content of water and oil contained in the sand collecting chamber 7 after the sand is filled with sand is very small, and therefore, the opening and closing mechanism provided in the present invention achieves separation between sand, oil and water, and also greatly reduces the content of oil and water mixed in sand.
The cleaning mechanism is specifically set as follows:
the bottom of the sand collecting cavity 7 is provided with a sand outlet 42, the sand outlet 42 penetrates through the lower surface of the sand collecting box 6, a blocking block 43 is arranged in the sand outlet 42 in a sealing manner, the middle part of the upper end of the blocking block 43 is fixedly connected with a connecting rod 40, the upper end of the connecting rod 40 is fixedly connected with a stop block 38, the inner wall of the lower end of the sand collecting cavity 7 is fixedly connected with a waterproof electric push rod 41, the upper end of the waterproof electric push rod 41 is fixedly connected with the bottom surface of the stop block 38, one side surface of the stop block 38 and one surface of the stop plate 35, which is far away from the first membrane 8, are positioned on the same vertical surface, and a material sensor 34 is arranged at the upper end position of one surface of the stop plate 35, which is far away from the first membrane 8; the material sensor 34 can be used for monitoring whether sand in the sand collecting cavity 7 is full, if sand in the sand collecting cavity 7 is full, the waterproof electric push rod 41 is started, the waterproof electric push rod 41 pushes the stop block 38 to move upwards to stop the surface, away from the first membrane body 8, of the stop plate 35, the stop block 35 is prevented from rotating by taking the hinge shaft 44 as an axis, the stop block 38 is moved upwards while the stop block 43 is driven to move upwards through the connecting rod 40, the stop block 43 is moved out of the sand outlet 42, at the moment, the collecting opening is closed, the sand outlet 42 is opened, sand in the sand collecting cavity 7 can be discharged through the sand outlet 42, the aim of regular cleaning is achieved, the collecting opening is synchronously closed in the process of cleaning the sand in the sand collecting cavity 7, and the waste phenomenon caused by the fact that petroleum and water are mixed into the sand collecting cavity 7 and discharged is avoided.
In actual use, the bottom surface of the lower end of the sand collecting cavity 7 is provided with a first inclined surface which is inclined from top to bottom in the direction from the inner wall close to the sand collecting cavity 7 towards the sand outlet 42; the first inclined surface enables the sand in the sand collection chamber 7 to be completely discharged from the sand outlet 42; the upper end of the blocking piece 43 is fixedly provided with a second inclined surface, and the second inclined surface is inclined from the middle part of the blocking piece 43 to the edge of the blocking piece 43 from top to bottom; the second inclined surface can prevent sand from accumulating on the upper surface of the block 43, and sand remaining on the upper surface of the block 43 when the sand in the sand collecting chamber 7 is discharged can fall down along the second inclined surface; the upper surface of the stopper 38 is provided with a third inclined surface 39, the third inclined surface 39 is inclined from top to bottom from the end close to the stopper 38 close to the blocking plate 35 toward the end far from the blocking plate 35, the third inclined surface 39 can prevent sand from accumulating on the upper surface of the stopper 38, and sand remaining on the upper surface of the stopper 38 can fall down along the third inclined surface 39 when sand in the sand collecting chamber 7 is discharged.
It should be noted that, based on the synchronous closing of the collection ports during the sand cleaning process in the sand collection chamber 7, the mixture of oil, sand and water can be further discharged into the first separation chamber 5 for treatment without worrying about leakage of oil and water.
A temporary storage chamber 13 is formed between the second partition plate 9 and the third partition plate 12, a vertical partition plate 16 is fixedly welded in the middle of the inner wall of the lower end of the separation box 1, a diffuse outlet 11 is formed between the upper end of the vertical partition plate 16 and the lower surface of the third partition plate 12, the vertical partition plate 16 separates the inner part of the lower end of the separation box 1 into a petroleum collection chamber 18 and a second separation chamber 15 which are distributed left and right, a connecting pipeline 14 is fixedly arranged on the side surface of the separation box 1, the upper end of the connecting pipeline 14 is communicated with the inner part of the lower end of the temporary storage chamber 13, the lower end of the connecting pipeline 14 is communicated with the inner part of the lower end of the second separation chamber 15, a second membrane 17 is fixedly arranged in the inner part of the lower end of the second separation chamber 15, a water collection chamber 19 is arranged below the second membrane 17, and a petroleum discharge pipeline 21 and a water discharge pipeline 20 are respectively communicated with the lower ends of the petroleum collection chamber 18 and the water collection chamber 19; when the mixture of water and oil passes through the first membrane body 8 and then sequentially passes through the round hole 32 and the groove 10 to enter the temporary storage chamber 13, the mixture of water and oil in the temporary storage chamber 13 passes through the connecting pipeline 14 to enter the second separation chamber 15, as the mixture of water and oil enters the bottom of the second separation chamber 15, the water can directly pass through the second membrane body 17 and then enter the water collection chamber 19, and the oil cannot pass through the second membrane body 17, at the moment, the oil can be accumulated in the second separation chamber 15, as the oil liquid level in the second separation chamber 15 rises, the oil overflows the vertical partition 16 and is discharged into the oil collection chamber 18 from the overflow port 11, the oil in the oil collection chamber 18 is discharged from the oil discharge pipeline 21, and the water in the water collection chamber 19 is discharged from the water discharge pipeline 20; the invention realizes the purpose of separating oil and water, and the position communicated with the second separation chamber 15 based on the connecting pipeline 14 is arranged at the lower end of the second separation chamber 15, so that the water in the just-entered oil and water mixture downwards enters the water collection chamber 19 from the second membrane 17, the oil inside the upper end of the second separation chamber 15 is kept to the greatest extent, and the separation effect of the oil and the water is improved.
The second membrane 17 may be a reverse osmosis membrane or a ceramic membrane, etc., and the second membrane 17 may be supplied with water and may not allow petroleum to pass therethrough, and the specific specifications of the reverse osmosis membrane or the ceramic membrane may be selected according to actual requirements.
During actual use, solenoid valves are arranged on the oil discharge pipeline 21 and the water discharge pipeline 20, so that the on-off of the oil discharge pipeline 21 and the water discharge pipeline 20 can be conveniently controlled according to requirements, the support legs 22 are fixedly arranged on the lower surface of the separation tank 1, and the support legs 22 are fixedly supported on the ground and used for supporting integral equipment.