A bleaching pneumatic water-based oil extraction pump

Abstract

This invention relates to the field of oil spill extraction equipment technology, and in particular to a bleaching pneumatic underwater oil spill extraction pump, comprising a housing, a drive unit, an oil pumping unit, and a water pumping unit. A receiving cavity is formed in the center of the housing, and the top surface of the housing is placed within the oil layer on the surface of the water. The receiving cavity is used to receive the water-oil mixture entering from the top surface of the housing. The oil pumping unit is located in the upper part of the receiving cavity, and the water pumping unit is located in the lower part of the receiving cavity. The output end of the drive unit is connected to the oil pumping unit and the water pumping unit. Through the design of the receiving cavity, a high-thickness oil-rich zone is naturally formed by the density difference between oil and water, achieving preliminary oil-water separation and reducing subsequent processing costs. By linking the oil pumping unit and the water pumping unit through the drive unit, the simultaneous operation of pumping oil upwards and discharging water downwards within the receiving cavity is achieved, significantly improving separation efficiency.

Description

Technical Field

[0001] This invention relates to the field of oil spill extraction equipment technology, and in particular to a bleaching pneumatic underwater oil spill extraction pump. Background Technology

[0002] With industrial development, oil spill pollution on water surfaces has become increasingly serious. Traditional oil spill recovery devices mostly use independent oil pumps or adsorption materials, which suffer from low separation efficiency, high energy consumption, and easy clogging. For example, some devices require first extracting the oil-water mixture before separation, resulting in low oil concentration and a heavy burden on subsequent processing. While pneumatic devices are energy-efficient, they can usually only pump oil or water at a time, making it difficult to simultaneously collect thick layers of oil and discharge water, and they lack real-time filtration capabilities for impurities. In addition, existing oil inlet designs are susceptible to wave effects, leading to unstable oil layer collection. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the problem that some existing devices require first extracting the oil-water mixture and then separating it, resulting in low oil concentration and a heavy burden on subsequent processing. The present invention provides a bleaching pneumatic water-floating oil extraction pump.

[0004] The technical solution adopted by this invention to solve its technical problem is: a bleaching pneumatic underwater oil extraction pump, comprising a housing, a drive unit, an oil pumping unit, and a water pumping unit. A receiving cavity is formed in the center of the housing, and a floating cavity is formed inside the housing to provide buoyancy for the oil extraction pump. The top surface of the housing is placed within the oil layer on the water surface, and the receiving cavity is used to receive the water-oil mixture entering from the top surface of the housing.

[0005] The oil pumping unit is fixedly connected to the outer shell and is located at the upper part of the containment cavity. The water pumping unit is fixedly connected to the outer shell and is located at the lower part of the containment cavity. The output end of the drive unit is connected to the oil pumping unit and the water pumping unit. The drive unit is used to provide power for the oil pumping unit to pump out the oil in the containment cavity and the water pumping unit to pump out the water in the containment cavity simultaneously. Through the design of the containment cavity, a high-thickness oil enrichment zone is naturally formed by the density difference between oil and water, realizing the initial separation of oil and water and reducing the cost of subsequent processing. By linking the oil pumping unit and the water pumping unit with the drive unit, the simultaneous operation of pumping oil upward and discharging water downward in the containment cavity is realized, which greatly improves the separation efficiency and avoids the energy loss caused by traditional secondary processing.

[0006] To address the issues of independent pump systems requiring multiple power sources, leading to complex structures, doubled energy consumption, and difficulties in ensuring precise synchronization of oil and water pumping actions due to mechanical linkage designs, a further solution is proposed: a drive unit comprising a drive component, a piston rod, a piston, and a cylinder. The cylinder and outer shell are fixedly connected, with the cylinder arranged within the receiving cavity. The piston is slidably arranged within the cylinder. The output end of the drive component is fixedly connected to the first end of the piston rod, and the tail end of the piston rod passes through the oil pumping unit and is fixedly connected to the piston. The piston divides the inner cavity of the cylinder into an upper cavity and a lower cavity. The upper cavity is connected to the oil pumping unit, and the lower cavity is connected to the water pumping unit.

[0007] To address the issues of poor oil flowability and easy mixing with bottom water when the oil passage cavity and the receiving cavity are directly connected, resulting in insufficient oil purity, the system further includes an oil pumping unit comprising an oil valve seat. A gap is arranged between the oil valve seat and the inner wall of the receiving cavity. An oil transition cavity is formed within the oil valve seat, which is connected to the upper cavity. An oil inlet and an oil outlet are formed on the top surface of the oil valve seat. The oil inlet and the oil transition cavity are connected via an oil inlet channel, and the oil outlet and the oil transition cavity are connected via an oil outlet channel.

[0008] To address the issue of oil backflow during piston reversal in the oil pump, which leads to decreased pumping efficiency and system idling, the system further includes an oil inlet valve that can open towards the oil transition chamber at the connection between the oil transition chamber and the oil inlet chamber, and an oil outlet valve that can open towards the output direction of the oil outlet chamber at the connection between the oil transition chamber and the oil outlet chamber.

[0009] To address the problem of impurities (such as leaves and plastic) in floating oil directly entering the pump body, causing high clogging rates and requiring frequent shutdowns for cleaning, a further oil pumping unit is included, comprising a filter plate. The filter plate is fixedly connected to the top surface of the oil valve seat, and the filter plate is used to filter impurities in the oil body.

[0010] To address the issue of cross-contamination between the water discharge pipeline and the oil pipeline, which leads to excessive water content in the separated oil, the system further includes a water pumping unit comprising a water valve seat. The water valve seat contains a water transition chamber connected to a lower chamber. The top surface of the water valve seat has a water inlet connected to the receiving chamber, and the bottom surface has a water outlet connected to external water. The water inlet and the water transition chamber are connected via a water inlet channel, and the water outlet and the water transition chamber are connected via a water outlet channel.

[0011] To address the issue of water pumps easily drawing in oil during the negative pressure suction stage, thus disrupting the oil-water separation interface, the system further includes a water inlet valve that can open towards the water transition chamber at the connection between the water transition chamber and the water inlet channel, and a water outlet valve that can open towards the output direction of the water outlet channel at the connection between the water transition chamber and the water outlet channel.

[0012] To address the issues of reduced oil collection efficiency and easy oil diffusion and escape of planar inlets under wave disturbance, the system further includes fixed blocks installed at intervals on the top surface of the outer shell. The fixed blocks are fixedly connected to the drive unit, and a dike is installed between two adjacent fixed blocks. The dike has an inlet gap with a V-shaped structure.

[0013] The beneficial effects of this invention are as follows: The floating pneumatic water-floating oil extraction pump provided by this invention, through the design of the containment cavity, utilizes the density difference between oil and water to naturally form a high-thickness oil enrichment zone, thereby achieving preliminary separation of oil and water and reducing subsequent processing costs. By linking the oil pumping unit and the water pumping unit through the drive unit, the oil is pumped upward and the water is discharged downward in the containment cavity, thereby greatly improving the separation efficiency and avoiding the energy loss caused by traditional secondary treatment. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a front view structural diagram of the present invention;

[0017] Figure 3 This is the present invention. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0018] Figure 4 This is the present invention. Figure 3 Enlarged structural diagram at point B;

[0019] Figure 5 This is the present invention. Figure 3 Enlarged structural diagram at point C;

[0020] Figure 6 This is a top view of the structure of the present invention;

[0021] Figure 7 This is the present invention. Figure 6 A schematic diagram of the cross-sectional structure at point DD.

[0022] In the diagram: 1. Outer shell; 11. Receptacle; 12. Fixing block; 121. Cavity; 13. Dike; 131. Liquid inlet; 14. Floating chamber; 2. Drive unit; 21. Drive component; 22. Piston rod; 23. Piston; 24. Cylinder; 241. Upper cavity; 242. Lower cavity; 3. Oil pumping unit; 31. Oil valve seat; 311. Oil transition cavity; 312. Oil inlet; 313. Oil. 314. Oil inlet channel; 315. Oil outlet channel; 316. Oil inlet valve; 317. Oil outlet valve; 32. Filter plate; 4. Water pumping unit; 41. Water valve seat; 411. Water transition chamber; 412. Water inlet; 413. Water outlet; 414. Water inlet channel; 415. Water outlet channel; 416. Water inlet valve; 417. Water outlet valve. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0024] like Figure 1 This is a schematic diagram of the structure of the present invention. A bleaching pneumatic water-based oil extraction pump includes a housing 1, a drive unit 2, an oil pumping unit 3, and a water pumping unit 4. The housing 1 has a receiving cavity 11 in its center. Figure 7 As shown, a floating chamber 14 is provided inside the outer casing 1 to provide buoyancy for the oil extraction pump. The floating chamber 14 is filled with gas. The top surface of the outer casing 1 is placed in the oil layer on the surface of the water. The receiving cavity 11 is used to receive the water-oil mixture entering the top surface of the outer casing 1.

[0025] like Figure 2 , 3 As shown, the oil pumping unit 3 is fixedly connected to the outer shell 1, and the oil pumping unit 3 is located at the upper part of the accommodating cavity 11. The water pumping unit 4 is fixedly connected to the outer shell 1, and the water pumping unit 4 is located at the lower part of the accommodating cavity 11. The output end of the drive unit 2 is connected to the oil pumping unit 3 and the water pumping unit 4. The drive unit 2 is used to provide power for the oil pumping unit 3 to pump out of the accommodating cavity 11 and the water pumping unit 4 to pump out of the accommodating cavity 11 simultaneously. Through the design of the accommodating cavity 11, a high-thickness oil enrichment area is naturally formed by utilizing the density difference between oil and water, so that the oil-water ratio in the accommodating cavity 11 of the outer shell 1 is higher than that in the outside, realizing the initial separation of oil and water, reducing the subsequent processing cost. By linking the oil pumping unit and the water pumping unit through the drive unit, the synchronous operation of pumping oil upward and discharging water downward in the accommodating cavity is realized, which greatly improves the separation efficiency and avoids the energy loss caused by traditional secondary processing.

[0026] like Figure 2 ,3 As shown, the drive unit 2 includes a drive component 21, a piston rod 22, a piston 23, and a cylinder 24. The cylinder 24 is fixedly connected to the outer casing 1 and is arranged within the accommodating cavity 11. The piston 23 is slidably arranged within the cylinder 24. The output end of the drive component 21 is fixedly connected to the head end of the piston rod 22, and the tail end of the piston rod 22 passes through the oil pumping unit 3 and is fixedly connected to the piston 23. The piston 23 divides the inner cavity of the cylinder 24 into an upper cavity 241 and a lower cavity 242. The upper cavity 241 communicates with the oil pumping unit 3, and the lower cavity 242 communicates with the water pumping unit 3. 4. The drive component 21 can be a cylinder. Further drive components can be replaced by hydraulic cylinders or electric actuators and other telescopic power elements. When the piston 23 reciprocates in the cylinder body 24, the single drive component 21 synchronously controls the upper chamber 241 to suck oil and the lower chamber 242 to drain water. The air pressure difference drives the valve to open and close automatically, without the need for additional energy, which is highly energy-efficient. The reciprocating motion of the piston 23 automatically generates an air pressure difference, which drives the valves (oil inlet valve 316, oil outlet valve 317, water inlet valve 416, and water outlet valve 417) to open and close, without the need for additional control circuits, which improves reliability.

[0027] like Figure 3 , 4 As shown, the oil pumping unit 3 includes an oil valve seat 31, with a gap between the oil valve seat 31 and the inner wall of the accommodating cavity 11. An oil transition cavity 311 is provided inside the oil valve seat 31, which is connected to the upper cavity 241. An oil inlet 312 and an oil outlet 313 are provided on the top surface of the oil valve seat 31. The oil inlet 312 and the oil transition cavity 311 are connected through an oil inlet channel 314, and the oil outlet 313 and the oil transition cavity 311 are connected through an oil outlet channel 315. The oil transition cavity 311 serves as a buffer zone, isolating the accommodating cavity 11 from the pumping pipeline to ensure that only the upper high-concentration oil is drawn in.

[0028] An oil inlet valve 316, which can open to the side of the oil transition chamber 311, is arranged in the connection between the oil transition chamber 311 and the oil inlet channel 314. An oil outlet valve 317, which can open to the output direction of the oil outlet channel 315, is arranged in the connection between the oil transition chamber 311 and the oil outlet channel 315. The design of the oil inlet valve 316 and the oil outlet valve 317 realizes a one-way opening design, which on the one hand prevents backflow and ensures long-term stable operation, and on the other hand avoids mixed discharge, that is, the direct discharge of the oil-water mixture that is subsequently added.

[0029] like Figure 3 , 6As shown, the oil pumping unit 3 includes a filter plate 32, which is fixedly connected to the top surface of the oil valve seat 31. The filter plate 32 is used to filter impurities in the oil. The filter plate 32 has a small through hole for oil flow. The filter plate 32 is installed at the oil inlet 312 to intercept impurities in real time.

[0030] like Figure 3 , 5 As shown, the water pumping unit 4 includes a water valve seat 41, a water transition cavity 411 is provided inside the water valve seat 41, the water transition cavity 411 is connected to the lower cavity 242, the top surface of the water valve seat 41 is provided with a water inlet 412 that is connected to the accommodating cavity 11, the outer shell 1 has a through hole that connects the accommodating cavity 11 and the water inlet 412, the bottom surface of the water valve seat 41 is provided with a water outlet 413 that is connected to the outside water, the water inlet 412 and the water transition cavity 411 are connected by a water inlet channel 414, and the water outlet 413 and the water transition cavity 411 are connected by a water outlet channel 415.

[0031] A water inlet valve 416 that can be opened to the side of the water transition chamber 411 is arranged in the connection between the water transition chamber 411 and the water inlet chamber 414. A water outlet valve 417 that can be opened to the output direction of the water outlet chamber 415 is arranged in the connection between the water transition chamber 411 and the water outlet chamber 415.

[0032] like Figure 2 , 3 As shown in Figure 6, fixing blocks 12 are installed at intervals on the top surface of the outer shell 1. The fixing blocks 12 and the driving component 21 are fixedly connected. A cofferdam 13 is installed between two adjacent fixing blocks 12, as shown in Figure 6. Figure 7 As shown, the fixed block 12 has a cavity 121 that communicates with the floating cavity 14. The cavity 121 of the fixed block 12 is used to increase the buoyancy of the oil extraction pump. The design of the cavity 121 can reduce the overall mass of the oil extraction pump.

[0033] The cofferdam 13 has an inlet 131 with a V-shaped structure. The design of the cofferdam 13 with the V-shaped inlet 131 expands the oil collection area and buffers the water flow disturbance, ensuring that the floating oil flows into the containment cavity 11 continuously and stably, and adapts to complex aquatic environments.

[0034] The buoyancy provided by the cavity 121 of the floating chamber 14 and the fixed block 12 allows the inlet 131 of the cofferdam 13 to float in the oil layer of the water. To make the inlet 131 float in the oil layer, the weight of the oil extraction pump and the buoyancy provided by the cavity 121 of the floating chamber 14 and the fixed block 12 are controlled during the design. Furthermore, the oil extraction pump is made of lightweight metal to ensure overall buoyancy. Furthermore, buoyancy balls can be added to the outside of the outer shell 1. According to the actual situation, a certain number of buoyancy balls are fixed to increase buoyancy.

[0035] Working process: The oil extraction pump floats on the surface of the water body, the top surface of the outer shell 1 is immersed in the oil layer, and the V-shaped liquid inlet 131 guides the oil-water mixture into the receiving cavity 11. The oil rises to form a thick oil layer, and the water sinks to the lower part of the receiving cavity 11.

[0036] Oil intake and water discharge: Drive unit 21 pulls piston rod 22 upward, the volume of upper chamber 241 increases to form negative pressure, oil enters valve 316 and rotates to open into oil transition chamber 311, oil output valve 317 is closed, oil is drawn into oil transition chamber 311 through oil inlet 312 and oil inlet channel 314, piston 23 moves upward to compress lower chamber 242, water output valve 417 rotates to open in the water output direction, water inlet valve 416 is closed, water in water transition chamber 411 is pumped out from water outlet 413 through water output channel 415;

[0037] Oil discharge and water intake: Drive unit 21 pushes piston rod 22 down, upper cavity 241 is pressurized, oil output valve 317 opens in the direction of oil output, oil inlet valve 316 closes, oil is pumped out from oil outlet 313 through oil output channel 315, lower cavity 242 volume increases to form negative pressure, water inlet valve 416 opens, water output valve 417 closes, water at the bottom of accommodating cavity 11 is sucked into water transition cavity 411 through water inlet 412 and water inlet channel 414;

[0038] During the process of oil and water intake, the liquid in the accommodating cavity 11 decreases. Therefore, the mixed liquid from the outside will enter the accommodating cavity 11 from the liquid inlet 131 of the cofferdam 13. When the floating oil layer on the surface of the water is taken up, the thickness of the oil layer in the accommodating cavity 11 is higher than the thickness of the floating oil layer outside, thus achieving preliminary separation of oil and water and increasing the oil ratio in the liquid output from the oil outlet 313 of the bleaching pneumatic water floating oil extraction pump.

[0039] The piston 23 continuously reciprocates, enabling continuous oil extraction and simultaneous water replacement. The containment chamber 11 maintains a high oil concentration, and the filter plate 32 intercepts impurities to ensure oil purity.

[0040] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A bleaching pneumatic underwater oil extraction pump, characterized in that, It includes a housing (1), a drive unit (2), an oil pumping unit (3), and a water pumping unit (4). The housing (1) has a accommodating cavity (11) in the center. The housing (1) has a floating cavity (14) inside for providing buoyancy for the oil extraction pump. The top surface of the housing (1) is placed in the oil layer on the surface of the water. The accommodating cavity (11) is used to accommodate the water-oil mixture entering the top surface of the housing (1). The oil pumping unit (3) is fixedly connected to the outer shell (1), and the oil pumping unit (3) is located at the upper part of the accommodating cavity (11). The water pumping unit (4) is fixedly connected to the outer shell (1), and the water pumping unit (4) is located at the lower part of the accommodating cavity (11). The output end of the drive unit (2) is connected to the oil pumping unit (3) and the water pumping unit (4). The drive unit (2) is used to provide power synchronously for the oil pumping unit (3) to pump out the oil in the accommodating cavity (11) and the water pumping unit (4) to pump out the water in the accommodating cavity (11).

2. The bleaching pneumatic underwater oil extraction pump as described in claim 1, characterized in that: The drive unit (2) includes a drive component (21), a piston rod (22), a piston (23), and a cylinder (24). The cylinder (24) is fixedly connected to the outer shell (1). The cylinder (24) is arranged in the accommodating cavity (11). The piston (23) is slidably arranged in the cylinder (24). The output end of the drive component (21) is fixedly connected to the head end of the piston rod (22). The tail end of the piston rod (22) passes through the oil pumping unit (3) and is fixedly connected to the piston (23). The piston (23) divides the inner cavity of the cylinder (24) into an upper cavity (241) and a lower cavity (242). The upper cavity (241) is connected to the oil pumping unit (3), and the lower cavity (242) is connected to the water pumping unit (4).

3. The bleaching pneumatic underwater oil extraction pump as described in claim 2, characterized in that: The oil pumping unit (3) includes an oil valve seat (31), with a gap between the oil valve seat (31) and the inner wall of the accommodating cavity (11). An oil transition cavity (311) is provided in the oil valve seat (31), and the oil transition cavity (311) is connected to the upper cavity (241). An oil inlet (312) and an oil outlet (313) are provided on the top surface of the oil valve seat (31). The oil inlet (312) and the oil transition cavity (311) are connected through an oil inlet channel (314), and the oil outlet (313) and the oil transition cavity (311) are connected through an oil outlet channel (315).

4. A bleaching pneumatic underwater oil extraction pump as described in claim 3, characterized in that: An oil inlet valve (316) capable of opening to the side of the oil transition chamber (311) is arranged in the connection between the oil transition chamber (311) and the oil inlet chamber (314), and an oil outlet valve (317) capable of opening to the output direction of the oil outlet chamber (315) is arranged in the connection between the oil transition chamber (311) and the oil outlet chamber (315).

5. A bleaching pneumatic underwater oil extraction pump as described in claim 3, characterized in that: The oil pumping unit (3) includes a filter plate (32), which is fixedly connected to the top surface of the oil valve seat (31). The filter plate (32) is used to filter impurities in the oil.

6. A bleaching pneumatic underwater oil extraction pump as described in claim 2, characterized in that: The water pumping unit (4) includes a water valve seat (41), a water transition cavity (411) is provided in the water valve seat (41), the water transition cavity (411) is connected to the lower cavity (242), the top surface of the water valve seat (41) is provided with a water inlet (412) connected to the accommodating cavity (11), the bottom surface of the water valve seat (41) is provided with a water outlet (413) connected to the external water body, the water inlet (412) and the water transition cavity (411) are connected through a water inlet channel (414), and the water outlet (413) and the water transition cavity (411) are connected through a water outlet channel (415).

7. A bleaching pneumatic underwater oil extraction pump as described in claim 6, characterized in that: A water inlet valve (416) capable of opening to the side of the water transition chamber (411) is arranged in the connection between the water transition chamber (411) and the water inlet chamber (414), and a water outlet valve (417) capable of opening to the output direction of the water outlet chamber (415) is arranged in the connection between the water transition chamber (411) and the water outlet chamber (415).

8. A bleaching pneumatic underwater oil extraction pump as described in claim 2, characterized in that: The top surface of the outer shell (1) is equipped with fixed blocks (12) at intervals. The fixed blocks (12) and the driving component (21) are fixedly connected. A cofferdam (13) is installed between two adjacent fixed blocks (12). The cofferdam (13) has an inlet (131) with a V-shaped structure.

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