An oil-water separation device based on layered pumping by air pump

Abstract

The utility model discloses an oil -water separation device based on air pump layered suction, including collection bucket, wastewater collection bucket and waste oil collection bucket, the inside detachable installation of oil -water mixed waste liquid collection entrance has filter screen frame, the inside bottom of collection bucket one side fixedly installed is with spacing frame, the one side of spacing frame is provided with a plurality of through -holes, and the bottom of spacing frame inside installs waterproof touch switch, the top of waterproof touch switch, and located spacing frame's inside swing is equipped with the float. The utility model discloses through the density of the float is lighter than water, but also is heavier than oil, therefore the float will float in the top of spacing frame inside, when the water level of collection bucket inside drops, the buoyancy of float is not enough to support, thereby sinking to the bottom of spacing frame inside, and with waterproof touch switch contact, then through waterproof touch switch and water suction air pump electric connection, thereby will water suction air pump stop operation, and then stop the extraction to water, avoid the process of extraction in each other mix.

Description

Technical Field

[0001] This utility model relates to the field of oil-water separation technology, specifically an oil-water separation device based on air pump stratified suction. Background Technology

[0002] Traditional oil-water separators mostly rely on gravity settling or centrifugal separation, which suffers from problems such as large equipment size, low separation efficiency, and the need for manual intervention. They are also complex in structure and have high maintenance costs. For small-scale applications such as oil mist recovery systems discharging mixed oil-water wastewater, there is an urgent need for an oil-water separator that is simple in structure, highly automated, and inexpensive.

[0003] Existing oil-water separation devices that use air pumps for stratified extraction often result in small amounts of oil and water being discharged as well, during the process of extracting the upper layer of oil and the lower layer of water separately. Therefore, they do not meet current requirements. To address this, we propose an oil-water separation device based on air pump stratified extraction. Utility Model Content

[0004] The purpose of this invention is to provide an oil-water separation device based on air pump stratified suction, in order to solve the problem mentioned in the background art that existing oil-water separation devices based on air pump stratified suction are prone to mixing small amounts of oil and water during the process of separately extracting the upper layer of oil and the lower layer of water.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil-water separation device based on air pump stratified suction, comprising a collection tank, a wastewater collection tank, and a waste oil collection tank, wherein the wastewater collection tank and the waste oil collection tank are respectively located on both sides of the collection tank, and an oil-water mixed waste liquid collection inlet is connected through the upper end of the collection tank. On both sides of the oil-water mixed waste liquid collection inlet and at the upper end of the collection tank, a water pump and an oil pump are respectively provided. One end of each water pump and oil pump is fixedly connected to an inlet pipe extending through to the inside of the collection tank, and the other end of each water pump and oil pump is fixedly connected to a pipe that is connected through to the inside of the wastewater collection tank and the waste oil collection tank, respectively.

[0006] A filter screen frame is detachably installed inside the oil-water mixed waste liquid collection inlet. A limiting frame is fixedly provided on one side of the bottom of the collection tank. Several through holes are equally spaced on one side of the limiting frame. A waterproof tactile switch is installed at the bottom inside the limiting frame. A float is movably installed above the waterproof tactile switch and inside the limiting frame.

[0007] Preferably, symmetrical grooves are provided on both the front and back sides of the upper end of the filter frame, and a fixing rod is fixedly connected inside the grooves on both the front and back sides, and a sliding plate is slidably connected to the outer surface of the fixing rods on both sides.

[0008] Preferably, a spring is fixedly connected between the side of the two sliding plates that are close to each other and the inner wall of the corresponding groove, and the spring is wound around the outer surface of the fixing rod. A limiting plate is fixedly connected to the side of the two sliding plates that are far from each other, and the end of the limiting plate that is far from the sliding plate moves through the groove and extends to the outside of the filter frame.

[0009] Preferably, the inner wall of the oil-water mixed waste liquid collection inlet is provided with limiting grooves on both the front and rear sides near the upper end, which match the limiting plate. The limiting plate extends through to one end of the filter frame and is inserted into the corresponding limiting groove.

[0010] Preferably, both inlet pipes are expandable pipes, and the inlet pipe of the oil pump is shorter than the inlet pipe of the water pump.

[0011] Preferably, the waterproof tactile switch is electrically connected to the water pump, and the density of the float is between that of oil and water.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model involves pinching the sliding plates on both sides of the upper end of the filter frame, causing both sliding plates to move towards each other along the fixed rod and compress the spring. This compresses the spring and moves the limiting plate into the groove. The filter frame is then placed inside the oil-water mixed waste liquid collection inlet. After releasing the pinching of the sliding plates, the limiting plate extends through to the outside of the filter frame under the elastic force of the spring and inserts into the corresponding limiting groove inside the oil-water mixed waste liquid collection inlet, thereby fixing the filter frame in place. The filter frame effectively filters the oil-water mixed waste liquid entering the collection tank, preventing blockage of the oil-water separation inlet pipe.

[0014] 2. This utility model utilizes a float that is lighter than water but heavier than oil. Therefore, the float will float at the top inside the limiting frame. Then, the water pump is started to draw water from the bottom of the tank through the inlet pipe and transport it to the inside of the wastewater collection tank. When the water level inside the collection tank drops and the oil level approaches the bottom of the water collection tank, the buoyancy of the float is insufficient to support it, causing the float to sink to the bottom inside the limiting frame and contact the waterproof tactile switch. Then, the waterproof tactile switch is electrically connected to the water pump, thereby stopping the operation of the water pump and stopping the extraction of water, thus preventing mixing during the extraction process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front sectional view of the collection bucket of this utility model;

[0017] Figure 3 This is a top sectional view of the collection bucket of this utility model;

[0018] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Collection bucket; 2. Oil-water mixed waste liquid collection inlet; 201. Limiting groove; 3. Viewing window; 4. Wastewater collection bucket; 5. Waste oil collection bucket; 6. Water pump; 7. Inlet pipe; 8. Oil pump; 9. Pipe; 10. Limiting frame; 1001. Through hole; 11. Waterproof tactile switch; 12. Float; 13. Filter frame; 1301. Groove; 14. Fixing rod; 15. Slide plate; 16. Spring; 17. Limiting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 4 The present invention provides an embodiment of an oil-water separation device based on air pump stratified suction, comprising a collection tank 1, a wastewater collection tank 4, and a waste oil collection tank 5. The wastewater collection tank 4 and the waste oil collection tank 5 are respectively located on both sides of the collection tank 1. The upper end of the collection tank 1 is connected to an oil-water mixed waste liquid collection inlet 2. On both sides of the oil-water mixed waste liquid collection inlet 2, and located at the upper end of the collection tank 1, a water pump 6 and an oil pump 8 are respectively provided. One end of the water pump 6 and the oil pump 8 are fixedly connected to an inlet pipe 7 that extends through into the interior of the collection tank 1, and the other end of the water pump 6 and the oil pump 8 are fixedly connected to pipes 9 that are respectively connected to the interior of the wastewater collection tank 4 and the waste oil collection tank 5.

[0022] A filter screen frame 13 is detachably installed inside the oil-water mixed waste liquid collection inlet 2. A limiting frame 10 is fixedly installed on one side of the bottom of the collection tank 1. Several through holes 1001 are equally spaced on one side of the limiting frame 10. A waterproof tactile switch 11 is installed at the bottom inside the limiting frame 10. A float 12 is movably installed above the waterproof tactile switch 11 and inside the limiting frame 10.

[0023] Symmetrical grooves 1301 are provided on both the front and back sides of the upper end of the filter frame 13. Fixed rods 14 are fixedly connected inside the grooves 1301 on both sides. Slide plates 15 are slidably connected to the outer surfaces of the fixed rods 14 on both sides. Springs 16 are fixedly connected between the side of the two slide plates 15 that are close to each other and the inner wall of the corresponding groove 1301. The springs 16 are wrapped around the outer surface of the fixed rods 14. Limiting plates 17 are fixedly connected to the side of the two slide plates 15 that are far from each other. The end of the limiting plate 17 that is away from the slide plate 15 moves through the groove 1301 and extends to the outside of the filter frame 13. Limiting grooves 201 matching the limiting plate 17 are provided on both the front and back sides of the inner wall of the oil-water mixed waste liquid collection inlet 2 near the upper end. The end of the limiting plate 17 that extends through to the outside of the filter frame 13 is inserted into the corresponding limiting groove 201.

[0024] By pinching the sliding plates 15 on both sides of the upper end of the filter frame 13, both sliding plates 15 move along the fixed rod 14 towards each other, compressing the spring 16, which in turn moves the limiting plate 17 into the groove 1301. Then, the filter frame 13 is placed into the oil-water mixed waste liquid collection inlet 2. After that, the pinching of the sliding plates 15 is released, so that the limiting plate 17 extends through to the outside of the filter frame 13 under the elastic force of the spring 16 and is inserted into the corresponding limiting groove 201 inside the oil-water mixed waste liquid collection inlet 2, thereby installing and fixing the filter frame 13.

[0025] Both inlet pipes 7 are retractable pipes. The inlet pipe 7 of the oil pump 8 is shorter than the inlet pipe 7 of the water pump 6. The waterproof tactile switch 11 is electrically connected to the water pump 6. The density of the float 12 is between that of oil and water.

[0026] Since the float 12 is lighter than water but heavier than oil, it floats at the top inside the limiting frame 10. Then, the water pump 6 is started to draw water from the bottom of the tank through the inlet pipe 7 and transport it through the pipe 9 to the inside of the wastewater collection tank 4. When the water level inside the collection tank 1 drops and the oil level approaches the bottom of the water collection tank 1, the buoyancy of the float 12 is insufficient to support it, so the float 12 sinks to the bottom inside the limiting frame 10 and contacts the waterproof tactile switch 11. Then, the waterproof tactile switch 11 is electrically connected to the water pump 6, thereby stopping the operation of the water pump 6 and stopping the extraction of water to avoid mixing during the extraction process.

[0027] When using the oil-water separator, by pinching the sliding plates 15 on both sides of the upper end of the filter screen frame 13, the two sliding plates 15 move along the fixed rod 14 towards each other and compress the spring 16, thereby moving the limiting plate 17 to be stored inside the groove 1301. Then, the filter screen frame 13 is placed inside the oil-water mixed waste liquid collection inlet 2. Then, the pinching of the sliding plates 15 is released, so that the limiting plate 17 extends through to the outside of the filter screen frame 13 under the elastic force of the spring 16 and is inserted into the corresponding limiting groove 201 inside the oil-water mixed waste liquid collection inlet 2, thereby installing and fixing the filter screen frame 13. Through the setting of the filter screen frame 13, the oil-water mixed waste liquid entering the collection tank 1 can be filtered to avoid clogging the oil-water separation inlet pipe 7.

[0028] After the oil-water mixed waste liquid enters the collection tank 1, it settles for a period of time, and the oil and water separate. The bottom of the tank is water and the top is oil. Since the float 12 is lighter than water but heavier than oil, it floats at the top inside the limit frame 10. Then, the water pump 6 is started to draw water from the bottom of the tank through the inlet pipe 7 and transport it to the inside of the wastewater collection tank 4 through the pipe 9. When the water level inside the collection tank 1 drops and the oil level approaches the bottom of the water collection tank 1, the buoyancy of the float 12 is insufficient to support it, so the float 12 sinks to the bottom inside the limit frame 10 and contacts the waterproof tactile switch 11. Then, the waterproof tactile switch 11 is electrically connected to the water pump 6, thereby stopping the operation of the water pump 6 and stopping the extraction of water to avoid mixing during the extraction process.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An oil-water separation device based on air pump stratified suction, comprising a collection tank (1), a wastewater collection tank (4), and a waste oil collection tank (5), wherein the wastewater collection tank (4) and the waste oil collection tank (5) are respectively disposed on both sides of the collection tank (1), characterized in that: The upper end of the collection tank (1) is connected to an oil-water mixed waste liquid collection inlet (2). On both sides of the oil-water mixed waste liquid collection inlet (2) and at the upper end of the collection tank (1), a water pump (6) and an oil pump (8) are respectively provided. One end of the water pump (6) and the oil pump (8) are fixedly connected to an inlet pipe (7) that extends through to the inside of the collection tank (1). The other end of the water pump (6) and the oil pump (8) are fixedly connected to pipes (9) that are respectively connected through to the inside of the wastewater collection tank (4) and the waste oil collection tank (5). A filter screen frame (13) is detachably installed inside the oil-water mixed waste liquid collection inlet (2). A limiting frame (10) is fixedly provided on one side of the bottom of the collection bucket (1). Several through holes (1001) are equally spaced on one side of the limiting frame (10). A waterproof tactile switch (11) is installed at the bottom inside the limiting frame (10). A float (12) is movably provided above the waterproof tactile switch (11) and inside the limiting frame (10).

2. The oil-water separation device based on air pump stratified suction according to claim 1, characterized in that: The filter frame (13) has symmetrical grooves (1301) on both sides of the upper end. The grooves (1301) on both sides are fixedly connected to the inside of the grooves (1301) on both sides. The outer surfaces of the fixed rods (14) on both sides are slidably connected to the slide plates (15).

3. The oil-water separation device based on air pump stratified suction according to claim 2, characterized in that: A spring (16) is fixedly connected between the side of the two sliding plates (15) that are close to each other and the inner wall of the corresponding groove (1301). The spring (16) is wrapped around the outer surface of the fixing rod (14). A limiting plate (17) is fixedly connected to the side of the two sliding plates (15) that are far apart from each other. The end of the limiting plate (17) that is away from the sliding plate (15) moves through the groove (1301) and extends to the outside of the filter frame (13).

4. The oil-water separation device based on air pump stratified suction according to claim 3, characterized in that: The inner wall of the oil-water mixed waste liquid collection inlet (2) is provided with a limiting groove (201) matching the limiting plate (17) on both the front and rear sides near the upper end. The limiting plate (17) extends through to one end of the filter frame (13) and is inserted into the corresponding limiting groove (201).

5. The oil-water separation device based on air pump stratified suction according to claim 1, characterized in that: Both inlet pipes (7) are retractable pipes, and the inlet pipe (7) of the oil pump (8) is shorter than the inlet pipe (7) of the water pump (6).

6. The oil-water separation device based on air pump stratified suction according to claim 1, characterized in that: The waterproof tactile switch (11) is electrically connected to the water pump (6), and the density of the float (12) is between that of oil and water.

Images