A top-down oil-water separation device and its use method

Abstract

The present invention discloses a top-down oil-water separation device and a method of use, comprising a separation mechanism, a motion mechanism, and a transmission mechanism. The separation mechanism comprises a separation tube, an oil inlet layer, a fixing ring, a fixer, and an oil-water separation head. The oil inlet layer is wrapped around the bottom and side of the oil-water separation head. The oil inlet layer is made of an oleophilic and hydrophobic material. The fixing ring is sleeved on the outer side of the upper end of the oil inlet layer and is used to fix the oil inlet layer on the outer side of the oil-water separation head. The lower end of the separation tube is connected to the center of the top of the oil-water separation head. The separation tube extends vertically upward. The fixer is arranged at the top of the separation tube. The motion mechanism comprises a motor, a mounting plate, a crank, a connecting rod, a push rod, a clamp, and a slider. The motor is fixedly connected to the top of the right side of the mounting plate. The slider is fixed to the bottom of the left side of the mounting plate. One end of the crank is fixed to the motor output shaft. The present invention can achieve efficient oil-water separation operations, has low energy consumption, low processing cost, small space occupation, small limitations, a wide range of applications, and is worthy of promotion.

Description

Technical Field

[0001] The invention relates to the field of oil-water separation approximation, in particular to a top-down oil-water separation device. Background Art

[0002] Pollution caused by the discharge of oily wastewater, frequent marine tanker accidents, and oil leaks from drilling rigs has damaged the aquatic ecosystem and even threatened human health. Oil-water separation, as an effective method for pollution control and oil spill recovery, has become a hotly debated topic. Traditional oil-water separation methods are prone to secondary environmental pollution, have high limitations in use, high processing costs, high energy consumption, and low separation efficiency. Due to the long-term contact between the separation parts and oil and water, they need to be frequently replaced, which greatly increases the cost. In addition, most oil-water separation devices require the oil and water to be absorbed into the device for separation at the same time, which also greatly increases energy consumption. In addition, due to the different external environments, more requirements are placed on the applicability of oil-water separation devices.

[0003] Therefore, there is an urgent need for a new type of oil-water separation device and oil-water separation method to solve the problems of high energy consumption, high processing cost and large limitations of existing oil-water separation, while expanding the scope of application of the device. Summary of the Invention

[0004] The object of the present invention is to provide a top-down oil-water separation device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A top-down oil-water separation device comprises a separation mechanism, a motion mechanism, and a transmission mechanism. The separation mechanism comprises a separation tube, an oil inlet layer, a fixing ring, a fixer, and an oil-water separation head. The oil inlet layer is wrapped around the bottom and side of the oil-water separation head. The oil inlet layer is made of an oleophilic and hydrophobic material. The fixing ring is sleeved on the outer side of the upper end of the oil inlet layer to fix the oil inlet layer on the outer side of the oil-water separation head. The lower end of the separation tube is connected to the center of the top of the oil-water separation head. The separation tube extends vertically upward. The fixer is arranged at the top of the separation tube. The motion mechanism comprises a motor, a mounting plate, A crank, a connecting rod, a push rod, a clamp and a slider, the motor is fixedly connected to the top of the right side of the mounting plate, the slider is fixed to the bottom of the left side of the mounting plate, one end of the crank is fixed to the motor output shaft, and the other end of the crank is hinged to one end of the connecting rod, one end of the connecting rod crank is hinged to the push rod, the push rod is slidably connected to the circular hole in the center of the slider, the push rod is fixedly connected to the separation tube, the transmission mechanism includes an oil inlet pipe, an oil outlet pipe and a pump, the oil inlet pipe and the oil outlet pipe are respectively connected to the liquid inlet end and the liquid outlet end of the pump, and the end of the oil inlet pipe away from the pump is connected to the bottom of the separation tube.

[0007] Furthermore, a top-down oil-water separation device also includes a storage mechanism, which includes an oil-water mixing tank, an oil storage tank and a pair of solenoid valves, and the solenoid valves are respectively located at the bottom of the side of the oil storage tank and the bottom of the side of the oil-water mixing tank.

[0008] Furthermore, a top-down oil-water separation device also includes a control system, which includes a DC reduction motor, a DC motor, a single-chip microcomputer, a potentiometer, an L298N, a button, a solenoid valve, and a power supply. The single-chip microcomputer supplies electricity to the L298N through the power supply, and further collects the voltage supplied by the potentiometer single-chip microcomputer through the ADC to perform a series of mathematical operations to obtain a suitable PWM duty cycle, and then drives the two motors separately through the L298N to achieve the effect of controlling the speed, and controls the power supply to the solenoid valve through the button, thereby controlling the operation of the solenoid valve.

[0009] Furthermore, the pump is a peristaltic pump.

[0010] Furthermore, a clamp is provided at the bottom of the push rod, and the clamp is sleeved on the top of the separation tube and below the fixer.

[0011] A method for using a top-down oil-water separation device comprises the following steps:

[0012] S1: Turn on the power switch, turn on the peristaltic pump motor switch, turn on the reciprocating motor switch, and the oil-water separation head extends into the oil-water mixing tank and moves downward. With the help of the kinetic energy of the downward movement of the oil-water separation head and the pressure difference on both sides of the oil inlet layer, the oil inside the oil-water mixing tank enters the separation tube;

[0013] S2: The suction force of the pump transports the oil in the separation tube to the oil storage tank through the oil inlet pipe and the oil outlet pipe in sequence. When the oil-water separation head moves to the bottom of the oil-water mixing tank, the pump starts to work, so that the oil in the separation tube is transported to the oil storage tank;

[0014] S3: The oil-water separation head moves upward. The specific height of the upward movement can be set according to actual conditions. It can also move directly upward to leave the oil-water mixing tank.

[0015] S4: Repeat steps S1-S3 until the oil-water separation in the oil-water mixing tank is completed;

[0016] S5: After a certain period of time, that is, when the oil-water separation head cannot separate the oil from the oil-water mixing tank, the water in the oil-water mixing tank is discharged through the solenoid valve. When the oil storage tank is full of oil, the oil in the oil storage tank is discharged through the solenoid valve.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The oil-water separation head of the present invention has a simple structure and only needs to wrap the bottom of the separation tube with an oleophilic and hydrophobic oil inlet layer. During the oil-water separation process, the kinetic energy of the downward movement of the oil-water separation head and the internal and external pressure difference on both sides of the oil inlet layer allow the oil in the oil-water mixing pool to smoothly enter the interior of the separation tube, and ensure that the oil in the separation tube does not flow out. Finally, the oil in the separation tube is transferred to the oil storage tank by the suction force of the pump, ensuring that the entire device has a simple structure, easy operation, and wide applicability.

[0019] 2. The present invention only outputs the oil in the oil-water mixing pool, while the water remains in the oil-water mixing pool. Compared with the oil-water device in the prior art that needs to separate and output both the oil and the water, the present invention has a simple structure, occupies a small area, has lower energy consumption and lower costs.

[0020] 3. The oil inlet layer in the present invention can be replaced according to the specific usage scenario, and high-efficiency oil-water separation can be achieved for different usage environments; and the oil inlet layer is fixed to the bottom of the separation tube by a fixing ring, which is convenient for disassembly and maintenance as well as material replacement for different usage scenarios, so that the present application can be applied to different scenarios, with good scalability and a wide range of use.

[0021] In summary, the present invention can achieve efficient oil-water separation operations, has low energy consumption, low processing costs, occupies a small space, has few limitations, has a wide range of applications, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a top-down oil-water separation device;

[0023] Figure 2 This is a schematic structural diagram of a separation mechanism in a top-down oil-water separation device;

[0024] Figure 3 This is a schematic diagram of the structure of the motion mechanism in a top-down oil-water separation device;

[0025] Figure 4 It is a structural schematic diagram of a transmission mechanism in a top-down oil-water separation device;

[0026] Figure 5 This is a schematic diagram of the structure of a storage mechanism in a top-down oil-water separation device.

[0027] In the figure: 1-separation mechanism, 2-movement mechanism, 3-transmission mechanism, 4-storage mechanism, 11-fixer, 12-separation tube, 13-fixing ring, 14-oil-water separation head, 15-oil inlet layer, 21-mounting plate, 22-motor, 23-crank, 24-connecting rod, 25-slider, 26-push rod, 27-clamp, 31-oil outlet pipe, 32-pump, 33-oil inlet pipe, 41-oil-water mixing tank, 42-solenoid valve, 43-oil storage tank. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1 to 5 , a top-down oil-water separation device, including a separation mechanism 1, a motion mechanism 2, and a transmission mechanism 3, the separation mechanism 1 includes a separation tube 12, an oil inlet layer 15, a fixing ring 13, a fixer 11 and an oil-water separation head 14, the oil inlet layer 15 is wrapped around the bottom and side of the oil-water separation head 14, the oil inlet layer 15 is made of oleophilic and hydrophobic material, the fixing ring 13 is sleeved on the outer side of the upper end of the oil inlet layer 15, and is used to fix the oil inlet layer 15 on the outer side of the oil-water separation head 14, the lower end of the separation tube 12 is connected to the center of the top of the oil-water separation head 14, the separation tube 12 extends vertically upward, the fixer 11 is set at the top of the separation tube 12, the motion mechanism 2 includes a motor 22, a mounting plate 21, a crank 23, a connecting rod 24, a push rod 26, a clamp 27 and a slider 25, the motor 22 is fixedly connected to the top of the right side of the mounting plate 21, the slider 25 is fixed to the bottom of the left side of the mounting plate 21, one end of the crank 23 is fixed to the output shaft of the motor 22, and the other end of the crank 23 is hinged to one end of the connecting rod 24, and the connecting rod 24 is hinged to one end of the crank 23 and the push rod 26, the push rod 26 is slidably connected to the circular hole in the center of the slider 25, the push rod 26 is fixedly connected to the separation tube 12, the transmission mechanism 3 includes an oil inlet pipe 33, an oil outlet pipe 31 and a pump 32, the oil inlet pipe 33 and the oil outlet pipe 31 are respectively connected to the liquid inlet end and the liquid outlet end of the pump 32, and the end of the oil inlet pipe 33 away from the pump 32 is connected to the bottom of the separation tube 12.

[0030] A top-down oil-water separation device also includes a storage mechanism 4, which includes an oil-water mixing pool 41, an oil storage pool 43 and a pair of solenoid valves 42, and the solenoid valves 42 are respectively located at the bottom of the side of the oil storage pool 43 and the bottom of the side of the oil-water mixing pool 41.

[0031] A top-down oil-water separation device also includes a control system, which includes a DC reduction motor, a DC motor, a single-chip microcomputer, a potentiometer, an L298N, a button, a solenoid valve, and a power supply. The single-chip microcomputer supplies electricity to the L298N through the power supply, and further collects the voltage supplied by the potentiometer single-chip microcomputer through the ADC to perform a series of mathematical operations to obtain a suitable PWM duty cycle, and then drives the two motors separately through the L298N to achieve the effect of controlling the speed. The power supply to the solenoid valve is controlled by the button, thereby controlling the operation of the solenoid valve.

[0032] The fixer 11 is provided with ventilation holes including through holes.

[0033] The oil-water separation head 14 is configured to be conical.

[0034] In this embodiment, the separation mechanism 1 reciprocates up and down, utilizing the pressure differential between the two sides of the oil inlet layer 15 to separate the oil from the water. The motion mechanism 2 drives the separation mechanism 1 back and forth via a crank and connecting rod. The transmission mechanism 3 transmits the separated oil, and the storage mechanism 4 stores the oil and the oil-water mixture. The motor 22 comprises a DC reduction motor and a reducer. The DC reduction motor provides power to the entire motion mechanism, while the reducer reduces the motor's output speed and increases its output torque. A control system controls the normal operation of the motor 11 and the solenoid valve 42.

[0035] Example 2: Please refer to Figure 2 , a top-down oil-water separation device, which differs from Example 1 in that the fixture 11 is provided with a through-hole ventilation hole.

[0036] In this embodiment, the through hole is used to fix the oil inlet pipe 33, and the ventilation hole is used to ensure that the interior of the separation tube is connected to the atmosphere.

[0037] Example 3: Please refer to Figure 2 , a top-down oil-water separation device, which differs from Example 1 in that the separation head 14 is configured to be conical.

[0038] In this embodiment, the conical separation head 14 can increase the contact area, which is beneficial to the collection of oil.

[0039] Example 4: Please refer to Figure 4 , a top-down oil-water separation device, which differs from Example 1 in that the pump 32 adopts a peristaltic pump.

[0040] In this embodiment, the pump 32 is a peristaltic pump, which has good oil suction power.

[0041] Example 5: Please refer to Figure 3, a top-down oil-water separation device, which differs from Example 1 in that a clamper 27 is provided at the bottom of the push rod 26, and the clamper 27 is sleeved on the top of the separation tube 12 and below the fixer 11.

[0042] In this embodiment, the clamper 27 is used to realize the connection between the separation mechanism 1 and the movement mechanism 2, and is convenient for assembly and disassembly.

[0043] A method for using a top-down oil-water separation device comprises the following steps:

[0044] S1: Turn on the power switch, turn on the peristaltic pump motor switch, turn on the reciprocating motor switch, and the oil-water separation head 14 extends into the oil-water mixing pool 41 and moves downward. With the kinetic energy of the downward movement of the oil-water separation head 14 and the pressure difference on both sides of the oil-inlet layer, the oil inside the oil-water mixing pool 41 enters the separation tube 12;

[0045] S2: The suction force of the pump 32 transports the oil in the separation tube 12 to the oil storage tank 43 through the oil inlet pipe and the oil outlet pipe 31 in sequence. When the oil-water separation head 14 moves to the bottom of the oil-water mixing tank 41, the pump 32 starts to work, so that the oil in the separation tube 12 is transported to the oil storage tank 43;

[0046] S3: The oil-water separation head 14 moves upward. The specific height of the upward movement can be set according to actual conditions. It can also move directly upward to leave the oil-water mixing tank 41.

[0047] S4: Repeat steps S1-S3 until the oil-water separation in the oil-water mixing tank is completed;

[0048] S5: After a certain period of time, that is, when the oil-water separation head 14 cannot separate the oil from the oil-water mixing pool 41, the water in the oil-water mixing pool 41 is discharged through the solenoid valve. When the oil storage pool 43 is full of oil, the oil in the oil storage pool is discharged through the solenoid valve.

[0049] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A top-down oil-water separation device, comprising a separation mechanism (1), a movement mechanism (2), and a transmission mechanism (3), characterized in that: The separation mechanism (1) comprises a separation tube (12), an oil inlet layer (15), a fixing ring (13), a fixer (11) and an oil-water separation head (14), wherein the oil inlet layer (15) is wrapped around the bottom and side of the oil-water separation head (14), and the oil inlet layer (15) is made of an oleophilic and hydrophobic material. The fixing ring (13) is sleeved on the outer side of the upper end of the oil inlet layer (15) and is used to fix the oil inlet layer (15) on the outer side of the oil-water separation head (14). The lower end of the separation tube (12) is connected to the center of the top of the oil-water separation head (14), the separation tube (12) extends vertically upward, and the fixer (11) is arranged at the top of the separation tube (12). The motion mechanism (2) comprises a motor (22), a mounting plate (21), a crank (23), a connecting rod (24), a push rod (26), a clamp (27) and a slider (2 5), the motor (22) is fixedly connected to the top of the right side of the mounting plate (21), the slider (25) is fixed to the bottom of the left side of the mounting plate (21), one end of the crank (23) is fixed to the output shaft of the motor (22), the other end of the crank (23) is hinged to one end of the connecting rod (24), the end of the connecting rod (24) away from the crank (23) is hinged to the push rod (26), the push rod (26) is slidably connected to the circular hole in the center of the slider (25), the push rod (26) is fixedly connected to the separation tube (12), the transmission mechanism (3) includes an oil inlet pipe (33), an oil outlet pipe (31) and a pump (32), the oil inlet pipe (33) and the oil outlet pipe (31) are respectively connected to the liquid inlet end and the liquid outlet end of the pump (32), and the end of the oil inlet pipe (33) away from the pump (32) is connected to the bottom of the separation tube (12).

2. The top-down oil-water separation device according to claim 1, further comprising a storage mechanism (4), characterized in that: The storage mechanism (4) comprises an oil-water mixing tank (41), an oil storage tank (43), and a pair of solenoid valves (42), wherein the solenoid valves (42) are respectively located at the bottom of the side of the oil storage tank (43) and the bottom of the side of the oil-water mixing tank (41).

3. The top-down oil-water separation device according to claim 1 further comprises a control system, characterized in that: The control system includes a DC reduction motor, a DC motor, a single-chip microcomputer, a potentiometer, an L298N, a button, a solenoid valve, and a power supply. The single-chip microcomputer supplies electricity to the L298N through the power supply, and further collects the voltage supplied by the potentiometer single-chip microcomputer through the ADC to perform a series of mathematical operations to obtain a suitable PWM duty cycle, and then drives the two motors separately through the L298N to achieve the effect of controlling the speed. The power supply to the solenoid valve is controlled by the button, thereby controlling the operation of the solenoid valve.

4. The top-down oil-water separation device according to claim 1, characterized in that: The pump (32) is a peristaltic pump.

5. The top-down oil-water separation device according to claim 1, characterized in that: A clamp (27) is provided at the bottom of the push rod (26), and the clamp (27) is sleeved on the top of the separation tube (12) and below the fixer (11).

6. The top-down oil-water separation device according to claim 1, characterized in that: The fixer (11) is provided with a through-hole ventilation hole.

7. The top-down oil-water separation device according to claim 1, characterized in that: The oil-water separation head (14) is configured to be conical.

8. A method for using the top-down oil-water separation device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Turn on the power switch, turn on the peristaltic pump motor switch, turn on the reciprocating motor switch, and the oil-water separation head (14) extends into the oil-water mixing pool (41) and moves downward. With the help of the kinetic energy of the downward movement of the oil-water separation head (14) and the pressure difference on both sides of the oil-inlet layer, the oil inside the oil-water mixing pool (41) enters the separation tube (12); S2: The suction force of the pump (32) transports the oil in the separation tube (12) to the oil storage tank (43) through the oil inlet pipe and the oil outlet pipe (31) in sequence. When the oil-water separation head (14) moves to the bottom of the oil-water mixing tank (41), the pump (32) starts to work, so that the oil in the separation tube (12) is transported to the oil storage tank (43); S3: The oil-water separation head (14) moves upward. The specific height of the upward movement can be set according to actual conditions. It can also move directly upward to leave the oil-water mixing tank (41); S4: Repeat steps S1-S3 until the oil-water separation in the oil-water mixing tank is completed; S5: After a certain period of time, when the oil-water separation head (14) is unable to separate the oil from the oil-water mixing tank (41), the water in the oil-water mixing tank (41) is discharged through the electromagnetic valve. When the oil storage tank (43) is full of oil, the oil in the oil storage tank is discharged through the electromagnetic valve.

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