Floating and filtering type pneumatic pump for extracting floating oil in water

Abstract

The invention relates to the technical field of floating oil extraction equipment, in particular to a floating and filtering type pneumatic in-water floating oil extraction pump which comprises a shell, a driving unit, an oil body pumping-out unit and a water body pumping-out unit, a containing cavity is formed in the center of the shell, and the top face of the shell is arranged in a floating oil layer on the surface of a water body; the containing cavity is used for containing a water-oil mixture entering from the top face of the shell, the oil body pumping-out unit is located on the upper portion of the containing cavity, the water body pumping-out unit is located on the lower portion of the containing cavity, and the output end of the driving unit is in transmission connection with the oil body pumping-out unit and the water body pumping-out unit. The oil body pumping-out unit and the water body pumping-out unit are linked through the driving unit, so that the synchronous operation of upward pumping of the oil body and downward discharging of the water body in the accommodating cavity is realized, and the separation efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of floating oil extraction equipment, in particular to a floating filter type pneumatic underwater floating oil extraction pump. Background Art

[0002] With industrial development, the problem of oil pollution on the surface of water bodies is becoming increasingly serious. Traditional oil recovery devices often use independent oil pumps or adsorbent materials, which suffer from low separation efficiency, high energy consumption, and easy clogging. For example, some devices require the oil-water mixture to be extracted before separation, resulting in low oil concentration and a heavy burden on subsequent processing. While pneumatic devices are energy-efficient, they are usually only able to pump either oil or water, making it difficult to simultaneously collect thick oil and drain the water, and they lack real-time impurity filtration capabilities. In addition, the existing oil inlet design is easily affected by waves, resulting in unstable oil layer collection. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in order to overcome the problem that some devices in the prior art need to extract the oil-water mixture first and then separate it, resulting in low oil concentration and heavy subsequent processing burden, a floating filter pneumatic underwater oil extraction pump is provided.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a floating filter pneumatic underwater floating oil extraction pump, including a housing, a drive unit, an oil pumping unit and a water pumping unit, a housing with a receiving cavity at the center, a floating cavity for providing buoyancy for the floating oil extraction pump, a top surface of the housing placed in the floating oil layer on the surface of the water body, and the receiving cavity for accommodating the water-oil mixture entering the top surface of the housing, The oil pumping unit is fixedly connected to the shell, and the oil pumping unit is located at the upper part of the accommodating chamber. The water pumping unit is fixedly connected to the shell, and the water pumping unit is located at the lower part of the accommodating chamber. The output end of the driving unit is transmission-connected to the oil pumping unit and the water pumping unit. The driving unit is used to provide power for the oil pumping unit to pump out the oil in the accommodating chamber and the water pumping unit to pump out the water in the accommodating chamber synchronously. Through the design of the accommodating chamber, a high-thickness oil-enriched area is naturally formed by utilizing the density difference between oil and water, thereby realizing the preliminary separation of oil and water and reducing the subsequent processing cost. The oil pumping unit and the water pumping unit are linked by the driving unit to realize the synchronous operation of pumping up the oil in the accommodating chamber and discharging the water downward, thereby greatly improving the separation efficiency and avoiding the energy loss caused by traditional secondary treatment.

[0005] In order to solve the problem that the independent pump system requires multiple power sources, resulting in complex structure and doubled energy consumption, and the mechanical linkage design is difficult to ensure the precise synchronization of oil and water pumping actions, the drive unit further includes a drive member, a piston rod, a piston and a cylinder body, the cylinder body and the outer shell are fixedly connected, the cylinder body is arranged in the accommodating cavity, the piston is slidably arranged in the cylinder body, the output end of the drive member and the head end of the piston rod are fixedly connected, 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 body 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.

[0006] In order to solve the problem that when the oil circuit cavity is directly connected to the accommodating cavity, the oil has poor fluidity and is easily mixed into the bottom water body, resulting in insufficient oil purity, the oil pumping unit further includes an oil valve seat, a gap is arranged between the oil valve seat and the inner wall of the accommodating cavity, an oil transition cavity is opened in the oil valve seat, the oil transition cavity is connected to the upper cavity, an oil inlet and an oil outlet are opened on the top surface of the oil valve seat, the oil inlet and the oil transition cavity are connected through an oil inlet cavity channel, and the oil outlet and the oil transition cavity are connected through an oil output cavity channel.

[0007] In order to solve the problem that oil backflow is prone to occur when the piston of the oil pump is reversed, resulting in a decrease in oil pumping efficiency and system idling, an oil inlet valve that can be opened toward the oil transition chamber side is further arranged in the connection between the oil transition chamber and the oil inlet channel, and an oil output valve that can be opened toward the output direction side of the oil output channel is arranged in the connection between the oil transition chamber and the oil output channel.

[0008] In order to solve the problem that impurities in floating oil (such as leaves and plastics) directly enter the pump body, resulting in a high blockage rate and the need for frequent shutdowns for cleaning, the oil pumping unit further includes an oil pumping unit including a filter plate, which is fixedly connected to the top surface of the oil valve seat. The filter plate is used to filter impurities in the oil body.

[0009] In order to solve the problem of cross-contamination between the water discharge pipeline and the oil circuit, which leads to excessive water content in the oil after separation, the water pumping unit further includes a water valve seat, a water transition cavity is opened in the water valve seat, the water transition cavity is connected to the lower cavity, the top surface of the water valve seat is opened with a water inlet connected to the accommodating cavity, and the bottom surface of the water valve seat is opened with a water outlet connected to the external water body, the water inlet and the water transition cavity are connected through a water inlet channel, and the water outlet and the water transition cavity are connected through a water output cavity channel.

[0010] In order to solve the problem that the water pump is prone to inhaling oil layers and destroying the oil-water separation interface during the negative pressure water absorption stage, a water inlet valve that can be opened toward the water transition chamber is further arranged at the connection between the water transition chamber and the water inlet channel, and a water output valve that can be opened toward the output direction side of the water output channel is arranged at the connection between the water transition chamber and the water output channel.

[0011] In order to solve the problem that the oil collection efficiency of the flat liquid inlet decreases under wave disturbance and the oil layer is easy to diffuse and escape, the top surface of the outer shell is further provided with fixed blocks at intervals, the fixed blocks and the driving parts are fixedly connected, a cofferdam is installed between two adjacent fixed blocks, and a liquid inlet gap is opened on the cofferdam, and the liquid inlet gap has a V-shaped structure.

[0012] The beneficial effects of the present invention are as follows: the present invention provides a floating filter pneumatic underwater oil extraction pump, which, through the design of the accommodating chamber, utilizes the density difference between oil and water to naturally form a high-thickness oil-enriched area, thereby achieving preliminary separation of oil and water and reducing subsequent processing costs. The driving unit links the oil pumping unit and the water pumping unit to achieve synchronous operation of pumping up the oil and discharging the water in the accommodating chamber, thereby greatly improving the separation efficiency and avoiding the energy loss caused by traditional secondary treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and examples.

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 This invention Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 4 This invention Figure 3 Schematic diagram of the enlarged structure at B in the middle; Figure 5 This invention Figure 3 Schematic diagram of the enlarged structure at C in the middle; Figure 6 It is a schematic diagram of the top structure of the present invention; Figure 7 This invention Figure 6 Schematic diagram of the cross-sectional structure at DD in the middle.

[0015] In the figure: 1. Housing, 11. Accommodating chamber, 12. Fixing block, 121. Cavity, 13. Cofferdam, 131. Liquid inlet notch, 14. Floating chamber, 2. Driving unit, 21. Driving member, 22. Piston rod, 23. Piston, 24. Cylinder, 241. Upper chamber, 242. Lower chamber, 3. Oil pumping unit, 31. Oil valve seat, 311. Oil transition chamber, 312. Oil inlet, 313. Oil body Outlet, 314, oil enters the cavity, 315, oil outputs the cavity, 316, oil enters the valve, 317, oil output valve, 32, filter plate, 4, water pump out unit, 41, water valve seat, 411, water transition cavity, 412, water inlet, 413, water outlet, 414, water enters the cavity, 415, water output cavity, 416, water enters the valve, 417, water output valve. DETAILED DESCRIPTION

[0016] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.

[0017] like Figure 1 This is a structural diagram of the present invention, a floating filter type pneumatic water floating oil extraction pump, including a housing 1, a drive unit 2, an oil pumping unit 3 and a water pumping unit 4, the center of the housing 1 is provided with a receiving cavity 11, as shown in FIG. Figure 7 As shown, a floating chamber 14 is provided in the housing 1 for providing buoyancy for the floating oil extraction pump. The floating chamber 14 is filled with gas. The top surface of the housing 1 is placed in the floating oil layer on the surface of the water body. The accommodating chamber 11 is used to accommodate the water-oil mixture entering the top surface of the housing 1. like Figure 2 、 3 As shown, the oil pumping unit 3 is fixedly connected to the shell 1, and the oil pumping unit 3 is located at the upper part of the accommodating chamber 11, the water pumping unit 4 is fixedly connected to the shell 1, and the water pumping unit 4 is located at the lower part of the accommodating chamber 11, and the output end of the driving unit 2 is transmission-connected to the oil pumping unit 3 and the water pumping unit 4, and the driving unit 2 is used to synchronously provide power for the oil pumping unit 3 to pump out the oil in the accommodating chamber 11 and the water pumping unit 4 to pump out the water in the accommodating chamber 11. Through the design of the accommodating chamber 11, a high-thickness oil-enriched area is naturally formed by utilizing the density difference between oil and water, that is, the oil-water ratio in the accommodating chamber 11 of the shell 1 is higher than that in the outside, thereby realizing the preliminary separation of oil and water and reducing the subsequent processing cost. By linking the oil pumping unit and the water pumping unit through the driving unit, the synchronous operation of pumping up the oil in the accommodating chamber and discharging the water is realized, which greatly improves the separation efficiency and avoids the energy loss caused by traditional secondary treatment.

[0018] like Figure 2 、 3As shown, the drive unit 2 includes a drive member 21, a piston rod 22, a piston 23 and a cylinder body 24. The cylinder body 24 is fixedly connected to the housing 1, the cylinder body 24 is arranged in the accommodating chamber 11, and the piston 23 is slidably arranged in the cylinder body 24. The output end of the drive member 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 body 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 is connected, the driving member 21 can be a cylinder, and the further driving member can be replaced by a telescopic power element such as a hydraulic cylinder or an electric push rod. When the piston 23 reciprocates in the cylinder body 24, the single driving member 21 synchronously controls the upper cavity 241 to absorb oil and the lower cavity 242 to drain water. The air pressure difference drives the valve to open and close automatically, without the need for additional energy, and has strong energy saving performance. 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, water outlet valve 417) to open and close, without the need for additional control circuits, and thus improves reliability.

[0019] like Figure 3 、 4 As shown, the oil pumping unit 3 includes an oil valve seat 31. A gap is arranged between the oil valve seat 31 and the inner wall of the accommodating chamber 11. An oil transition chamber 311 is defined in the oil valve seat 31. The oil transition chamber 311 is communicated with the upper chamber 241. An oil inlet 312 and an oil outlet 313 are defined on the top surface of the oil valve seat 31. The oil inlet 312 and the oil transition chamber 311 are communicated with each other through an oil inlet channel 314. The oil outlet 313 and the oil transition chamber 311 are communicated with each other through an oil output channel 315. The oil transition chamber 311 serves as a buffer zone, isolating the accommodating chamber 11 from the pumping pipeline, ensuring that only the upper layer of high-concentration oil is sucked in.

[0020] An oil inlet valve 316 that can be opened toward the oil transition chamber 311 is arranged at the connection between the oil transition chamber 311 and the oil inlet channel 314. An oil output valve 317 that can be opened toward the output direction of the oil output channel 315 is arranged at the connection between the oil transition chamber 311 and the oil output channel 315. The design of the oil inlet valve 316 and the oil output 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 mixed liquid that is subsequently replenished.

[0021] 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 body. A small through hole is opened on the filter plate 32, which is used to allow the oil to flow. The filter plate 32 is set at the oil inlet 312 to intercept impurities in real time.

[0022] like Figure 3 、 5 As shown, the water pumping unit 4 includes a water valve seat 41, a water transition chamber 411 is opened in the water valve seat 41, the water transition chamber 411 is connected to the lower chamber 242, the top surface of the water valve seat 41 is opened with a water inlet 412 connected to the accommodating chamber 11, the outer shell 1 has a through hole that connects the accommodating chamber 11 and the water inlet 412, the bottom surface of the water valve seat 41 is opened with a water outlet 413 connected to the external water, the water inlet 412 and the water transition chamber 411 are connected through the water inlet channel 414, and the water outlet 413 and the water transition chamber 411 are connected through the water output channel 415.

[0023] A water inlet valve 416 that can be opened toward the water transition chamber 411 is arranged at the connection between the water transition chamber 411 and the water inlet channel 414, and a water output valve 417 that can be opened toward the output direction of the water output channel 415 is arranged at the connection between the water transition chamber 411 and the water output channel 415.

[0024] like Figure 2 、 3 As shown in FIG6 , the top surface of the housing 1 is provided with fixed blocks 12 at intervals. The fixed blocks 12 are fixedly connected to the driving member 21. A cofferdam 13 is provided between two adjacent fixed blocks 12. Figure 7 As shown, a cavity 121 is provided in the fixed block 12 and is connected to the floating cavity 14. The cavity 121 of the fixed block 12 is used to increase the buoyancy of the floating oil extraction pump. The design of the cavity 121 can reduce the overall mass of the floating oil extraction pump. A liquid inlet notch 131 is provided on the cofferdam 13, and the liquid inlet notch 131 has a V-shaped structure. The design of the cofferdam 13 with the V-shaped liquid inlet notch 131 expands the oil collection area and buffers water flow disturbances, ensuring that the floating oil continues to flow steadily into the accommodating chamber 11 and adapts to complex water environments.

[0025] The buoyancy provided by the floating chamber 14 and the cavity 121 of the fixed block 12 allows the liquid inlet opening 131 of the cofferdam 13 to float in the oil layer of the water body. The floating inlet opening 131 is designed to float on the oil layer by controlling the weight of the floating oil extraction pump and the buoyancy provided by the floating chamber 14 and the cavity 121 of the fixed block 12. Furthermore, the entire floating oil extraction pump is made of lightweight metal to ensure overall buoyancy. Furthermore, buoyancy balls can be added to the outside of the housing 1. According to actual conditions, a certain number of buoyancy balls can be fixed to increase buoyancy.

[0026] Working process: The floating oil extraction pump floats on the surface of the water body, the top surface of the housing 1 is immersed in the floating oil layer, the V-shaped liquid inlet notch 131 guides the oil-water mixture into the accommodating chamber 11, the oil body floats up to form a thick oil layer, and the water body sinks to the bottom of the accommodating chamber 11; Oil intake and water discharge: The driving member 21 pulls the piston rod 22 upward, the volume of the upper cavity 241 increases to form a negative pressure, the oil inlet valve 316 rotates and opens into the oil transition cavity 311, the oil output valve 317 is closed, and the oil is sucked into the oil transition cavity 311 through the oil inlet 312 and the oil inlet channel 314. The piston 23 moves upward to compress the lower cavity 242, the water output valve 417 rotates and opens in the water output direction, the water inlet valve 416 is closed, and the water in the water transition cavity 411 is pumped out from the water outlet 413 through the water output channel 415. Discharge of oil and intake of water: The driving member 21 pushes the piston rod 22 downward, pressurizing the upper chamber 241, opening the oil output valve 317 in the oil output direction, closing the oil inlet valve 316, and pumping the oil out from the oil outlet 313 through the oil output cavity 315. The volume of the lower chamber 242 increases to form a negative pressure, opening the water inlet valve 416, and closing the water output valve 417. The water at the bottom of the accommodating chamber 11 is sucked into the water transition chamber 411 through the water inlet 412 and the water inlet cavity 414. During the oil and water absorption process, the amount of liquid in the accommodating chamber 11 decreases. Consequently, the mixed liquid from the outside world subsequently enters the accommodating chamber 11 through the liquid inlet notch 131 of the cofferdam 13, absorbing the floating oil layer on the surface of the water body. This causes the thickness of the oil layer in the accommodating chamber 11 to be greater than the thickness of the floating oil layer outside, thereby achieving preliminary separation of oil and water and increasing the oil-to-water ratio in the liquid outputted from the oil outlet 313 of the pneumatic floating oil extraction pump. The piston 23 continuously reciprocates to realize continuous extraction of oil and synchronous replacement of water. The accommodating chamber 11 always maintains a high oil concentration, and the filter plate 32 intercepts impurities to ensure the purity of the oil.

[0027] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A floating filter pneumatic oil extraction pump, characterized in that: The invention comprises a housing (1), a drive unit (2), an oil pumping unit (3) and a water pumping unit (4); a receiving chamber (11) is provided at the center of the housing (1); a floating chamber (14) is provided in the housing (1) for providing a buoyancy force for the floating oil extraction pump; the top surface of the housing (1) is placed in a floating oil layer on the surface of the water body; the receiving chamber (11) is used to receive the water-oil mixture entering the top surface of the housing (1); The oil pumping unit (3) is fixedly connected to the housing (1), and the oil pumping unit (3) is located at the upper part of the accommodating chamber (11); the water pumping unit (4) is fixedly connected to the housing (1), and the water pumping unit (4) is located at the lower part of the accommodating chamber (11); the output end of the driving unit (2) is connected to the oil pumping unit (3) and the water pumping unit (4) in a transmission manner; the driving unit (2) is used to synchronously provide power for the oil pumping unit (3) to pump out the oil in the accommodating chamber (11) and for the water pumping unit (4) to pump out the water in the accommodating chamber (11).

2. A floating filter type pneumatic oil extraction pump for floating oil in water according to claim 1, characterized in that: The driving unit (2) comprises a driving member (21), a piston rod (22), a piston (23) and a cylinder (24); the cylinder (24) is fixedly connected to the housing (1); the cylinder (24) is arranged in the accommodating chamber (11); the piston (23) is slidably arranged in the cylinder (24); the output end of the driving member (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 communicated with the oil pumping unit (3), and the lower cavity (242) is communicated with the water pumping unit (4).

3. A floating filter type pneumatic oil extraction pump for extracting floating oil in water according to claim 2, characterized in that: The oil pumping unit (3) comprises an oil valve seat (31), a gap is arranged 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), the oil transition cavity (311) is communicated with 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 communicated with each other through an oil inlet channel (314), and the oil outlet (313) and the oil transition cavity (311) are communicated with each other through an oil outlet channel (315).

4. A floating filter type pneumatic oil extraction pump for extracting floating oil in water according to claim 3, characterized in that: An oil inlet valve (316) capable of opening toward the oil transition chamber (311) is arranged at the connection between the oil transition chamber (311) and the oil inlet channel (314), and an oil outlet valve (317) capable of opening toward the output direction of the oil outlet channel (315) is arranged at the connection between the oil transition chamber (311) and the oil outlet channel (315).

5. The pneumatic floating oil extraction pump according to claim 3, characterized in that: The oil pumping unit (3) comprises a filter plate (32), the filter plate (32) being fixedly connected to the top surface of the oil valve seat (31), and the filter plate (32) being used to filter impurities in the oil.

6. A floating filter type pneumatic underwater oil extraction pump according to claim 2, characterized in that: The water pumping unit (4) comprises a water valve seat (41), a water transition chamber (411) is provided in the water valve seat (41), the water transition chamber (411) is communicated with the lower chamber (242), a water inlet (412) communicated with the accommodating chamber (11) is provided on the top surface of the water valve seat (41), a water outlet (413) communicated with the external water is provided on the bottom surface of the water valve seat (41), the water inlet (412) and the water transition chamber (411) are communicated via a water inlet channel (414), and the water outlet (413) and the water transition chamber (411) are communicated via a water output channel (415).

7. A floating filter type pneumatic oil extraction pump for extracting floating oil in water according to claim 6, characterized in that: A water inlet valve (416) capable of opening toward the water transition chamber (411) is arranged at the connection between the water transition chamber (411) and the water inlet channel (414), and a water outlet valve (417) capable of opening toward the output direction of the water outlet channel (415) is arranged at the connection between the water transition chamber (411) and the water outlet channel (415).

8. The pneumatic floating oil extraction pump according to claim 2, characterized in that: The top surface of the housing (1) is provided with fixed blocks (12) at intervals, the fixed blocks (12) are fixedly connected to the driving member (21), and a cofferdam (13) is provided between two adjacent fixed blocks (12). A liquid inlet notch (131) is provided on the cofferdam (13), and the liquid inlet notch (131) is in a V-shaped structure.

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