A compressed air drainage oil-water separation device

Abstract

The present application relates to the field of oil-water separation technology and provides a compressed air drainage oil-water separation device, which includes a separation box, oil-absorbing cotton and a control terminal. The separation box is provided with a partition, and the multiple partitions divide the space of the separation box into multiple separation chambers; multiple oil-absorbing cottons are provided, and the oil-absorbing cottons are detachably arranged in the separation chamber; the side walls of the oil-absorbing cottons are attached to the cavity wall of the separation chamber, and the oil-absorbing cottons are slidably connected to the cavity wall of the separation chamber; one end of the separation box is provided with a water inlet, and the other end is provided with a water outlet; the separation box is provided with a water inlet pipe and a water inlet valve at the water inlet, and the other end of the water inlet pipe is connected to the oil-water separation tank; the separation box is provided with a water outlet pipe and a water outlet valve at the water outlet, and the other end of the water outlet pipe is connected to the sewage network; a water inlet is provided through the bottom of the partition, and a water inlet valve is provided at the water inlet; the water inlet valve, the water outlet valve and the water inlet valve are communicatively connected to the control terminal. The present application has the effect of reducing the possibility of oil being discharged into the sewage network.

Description

Technical Field

[0001] The present application relates to the field of oil-water separation technology, and in particular to a compressed air drainage oil-water separation device. Background Art

[0002] The condensate from the dryer and air storage tank in a compressed air system is regularly drained. This wastewater is then collected through drainage pipes and fed into the system's oil-water separator tank for oil-water separation. However, the volume of wastewater generated by a compressed air system varies significantly due to seasonal and weather factors. This often results in a mismatch between the treatment efficiency of the oil-water separator tank and the volume of water discharged, making it impossible to ensure effective oil-water separation. Consequently, the separated oil is discharged from the separator tank's drain pipe into the sewage network, creating an environmental risk to the sewage system. Summary of the Invention

[0003] In order to reduce the possibility of oil being discharged into the sewage network, the present application provides a compressed air drainage oil-water separation device.

[0004] The compressed air drainage oil-water separation device provided in this application adopts the following technical solution:

[0005] A compressed air drainage oil-water separation device comprises a separation box, oil-absorbing cotton and a control terminal, wherein a plurality of partitions are provided in the separation box, and the plurality of partitions are arranged at intervals along the length direction of the separation box, and the plurality of partitions divide the space of the separation box into a plurality of separation chambers; a plurality of oil-absorbing cottons are provided, and the oil-absorbing cottons are detachably arranged in the separation chamber, and the plurality of oil-absorbing cottons correspond to the plurality of separation chambers one by one; the side wall of the oil-absorbing cotton is attached to the cavity wall of the separation chamber, and the oil-absorbing cotton is slidably connected to the cavity wall along the height direction of the separation chamber. The wall of the separation chamber; a water inlet is provided at one end of the separation box, and a water outlet is provided at the other end; a water inlet pipe and a water inlet valve are provided at the position of the water inlet of the separation box, and the other end of the water inlet pipe is connected to the oil-water separation tank; a water outlet pipe and a water outlet valve are provided at the water outlet of the separation box, and the other end of the water outlet pipe is connected to the sewage network; a water outlet is provided through the bottom of the partition, and a water outlet valve is provided at the water outlet of the partition; the water inlet valve, the water outlet valve and the water outlet valve are communicatively connected to the control terminal.

[0006] By adopting the above technical solution, an oil-water separation device is added between the oil-water separation tank and the sewage pipe network to cope with the problem of large changes in the discharge volume of the compressed air system.

[0007] Specifically, when sewage is discharged from the drain port of the oil-water separation tank, the water inlet valve is opened through the control terminal, allowing the sewage to enter the first separation chamber in the separation box through the water inlet pipe and the water inlet. After the sewage enters the separation chamber, it reaches between the bottom wall of the separation chamber and the oil-absorbing cotton. The sewage exerts an upward force on the oil-absorbing cotton, causing the oil-absorbing cotton to gradually move upward. After the bearing capacity in the first separation chamber reaches its limit, the water inlet valve is first closed through the control terminal.

[0008] After the sewage in the first separation chamber has been left to stand for a period of time, part of the oil is absorbed by the oil-absorbing cotton in the first separation chamber. Then, the water valve between the first and second separation chambers is opened through the control terminal, allowing the sewage in the first separation chamber to enter the next separation chamber after the first oil-water separation.

[0009] After the sewage in the first separation chamber completely enters the next separation chamber, the water inlet valve is reopened to allow the newly discharged sewage in the oil-water separation tank to enter the first separation chamber; the above steps are repeated, so that the sewage undergoes multiple oil-water separation processes after leaving the oil-water separation tank and before reaching the sewage pipe network. There is no need to modify the oil-water separation device separately, and the position of the oil-absorbing cotton in the oil-water separation device depends on the amount of drainage. Therefore, it is suitable for situations where the drainage volume changes greatly, and can effectively reduce the possibility of oil being discharged into the sewage pipe network.

[0010] Optionally, a pressure sensor is provided on the bottom wall of the separation chamber, and the pressure sensor is used to obtain the pressure signal exerted on the bottom wall of the separation chamber and send the pressure signal to the control terminal; a first driving member is provided in the separation chamber, and the first driving member is used to drive the oil-absorbing cotton to slide relative to the separation chamber, and the first driving member is communicatively connected to the control terminal.

[0011] By adopting the above technical solution, the pressure signal received by the bottom wall of the separation chamber is obtained by the pressure sensor, and the pressure signal is sent to the control terminal; the control terminal calculates the depth of the sewage at this time, that is, the position where the oil-absorbing cotton should be located, based on the pressure signal, the area of the bottom wall of the separation chamber and the density of the sewage; the control terminal drives the oil-absorbing cotton to the position where the oil-absorbing cotton should be located through the first driving member, thereby reducing the possibility of sewage seeping out from between the oil-absorbing cotton and the cavity wall of the separation chamber; when the sewage in the separation chamber is in a static state, the oil-absorbing cotton is moved down a little at regular intervals to ensure that the oil absorption surface is always in an effective oil absorption state.

[0012] Optionally, the oil-absorbing cotton includes a frame and an oil-absorbing cotton body, the frame is arranged around the circumference of the oil-absorbing cotton body, the frame is used to fit with the cavity wall of the separation cavity, and the frame is used to be connected to the first driving member.

[0013] By adopting the above technical solution, the cotton body is installed in the frame, and the frame is used to establish the rigidity of the cotton body, which is convenient for installation and control.

[0014] Optionally, limit bars are respectively provided on the upper and lower sides of the frame, and the limit bars are used to abut against the surface of the oil-absorbing cotton body.

[0015] By adopting the above technical solution, the limiting strips are used to limit the cotton body, thereby increasing the connection stability between the cotton body and the frame.

[0016] Optionally, a surface of the frame body that is in contact with the cavity wall of the separation cavity is connected to a rolling shaft in a rolling manner, and the rotation axis of the rolling shaft is along the horizontal direction.

[0017] By adopting the above technical solution, the friction between the frame and the cavity wall of the separation chamber is rolling friction, which reduces the wear of the cavity wall and the frame of the separation chamber and improves the smoothness of the movement of the frame relative to the separation chamber.

[0018] Optionally, the oil-absorbing cotton body is detachably connected to the frame.

[0019] By adopting the above technical solution, it is convenient to replace the cotton body after using it for a period of time.

[0020] Optionally, the output end of the first driving member is connected to a mounting seat, and the mounting seat is used for connection to the frame; the mounting seat is provided with a second driving member, the output shaft of the second driving member is connected to the frame, and the oil-absorbing cotton is symmetrically arranged with the output shaft of the second driving member as the axis; the second driving member is used to drive the oil-absorbing cotton to flip.

[0021] By adopting the above technical solution, after the sewage in the separation chamber is treated for the first time, the oil in the oil-absorbing cotton is mostly concentrated on the side of the oil-absorbing cotton close to the sewage (this side is defined as the first side, and the other side of the oil-absorbing cotton is defined as the second side). At this time, the control terminal controls the oil-absorbing cotton to flip through the second driving member, so that the first side flips to a position away from the sewage, thereby using the cleaner second side of the oil-absorbing cotton to absorb the sewage entering the separation chamber for the second time; and in the process of oil absorption treatment, the oil closer to the first side will gradually transfer to the middle of the oil-absorbing cotton under the action of its own gravity; after the second oil absorption treatment is completed, the oil-absorbing cotton is controlled by the control terminal to flip again. At this time, since the oil on the first side has gradually transferred to the middle position of the oil-absorbing cotton, the first side becomes the cleaner side, and so on. The utilization rate of the oil-absorbing cotton is improved, the service life of the oil-absorbing cotton is extended, and the replacement frequency of the oil-absorbing cotton is reduced.

[0022] Optionally, the oil-absorbing cotton body is provided with two layers, and an oil-storing cotton body is provided between the two layers of the oil-absorbing cotton body.

[0023] By adopting the above technical solution, the oil storage cotton body is used to store the oil from the oil absorbing cotton body, thereby further extending the service life of the oil absorbing cotton body.

[0024] Optionally, a first oil-isolating film is provided on the surface of the oil-absorbing cotton body close to the oil-storing cotton body, and a plurality of first oil holes are opened through the first oil-isolating film; the outside of the oil-storing cotton body is covered with a second oil-isolating film, and a plurality of second oil holes are opened through the second oil-isolating film; an oil pipe is provided between the first oil-isolating film and the second oil-isolating film, and both ends of the oil pipe are respectively connected to the first oil hole and the second oil hole arranged opposite to each other.

[0025] By adopting the above technical solution, an oil passage is established between the oil-absorbing cotton body and the oil-storing cotton body using the oil pipe, the first oil hole and the second oil hole, so that the oil can be transferred from the oil-absorbing cotton body to the oil-storing cotton body in a more orderly and uniform manner.

[0026] Optionally, the oil passage is an elastic hose; a first pressure plate and a second pressure plate are provided between the oil storage cotton body and the oil absorbing cotton body, and the second pressure plate is located between the first pressure plate and the oil absorbing cotton body; the first pressure plate and the second pressure plate are both slidably connected to the frame along the thickness direction of the frame, and there is a gap between the first pressure plate and the second pressure plate; the frame is provided with a third driving member, the third driving member is communicatively connected to the control terminal, and the third driving member is used to drive the second pressure plate to move relative to the frame; the first pressure plate is penetrated by a plurality of first through-holes for the oil passage, and the aperture of the first through-hole is consistent with the outer diameter of the oil passage; the second pressure plate is penetrated by a plurality of second through-holes for the oil passage, and the aperture of the second through-hole is consistent with the outer diameter of the oil passage; a plurality of first through-holes and a plurality of second through-holes are staggered.

[0027] By adopting the above technical solution, after the oil storage amount in the oil storage cotton body reaches a certain amount, the third driving member is started by controlling the control terminal, and the third driving member drives the second pressure plate to move in the direction close to the oil storage cotton body; after the second pressure plate abuts against the first pressure plate, it continues to drive the first pressure plate to move synchronously in the direction close to the oil storage cotton body, and finally the first pressure plate and the second pressure plate on both sides of the oil storage cotton body squeeze the oil storage cotton body. At the same time, since the first through-hole and the second through-hole are staggered, the first pressure plate and the second pressure plate clamp and squeeze the oil pipe, temporarily cutting off the passage of oil between the oil-absorbing cotton body and the oil storage cotton body, thereby squeezing the oil in the oil storage cotton body from the oil outlet hole, so that the oil enters the external oil storage equipment through the oil outlet pipe, thereby extending the service life of the oil storage cotton body, further extending the service life of the oil-absorbing cotton body, and reducing the replacement frequency.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] An oil-water separator is installed between the oil storage separation tank and the sewage pipe network. The oil-water separator includes a separation box and a partition. The partition divides the inner cavity of the separation box into multiple separation chambers. Oil-absorbing cotton that can rise with the sewage level is installed in the separation chamber. This makes the oil-water separator suitable for different drainage volumes and reduces the possibility of oil adhering to the sewage pipe network.

[0030] By providing a second driving member, the second driving member is used to drive the oil-absorbing cotton to turn over, and the two sides of the oil-absorbing cotton are used to alternately absorb oil, thereby extending the service life of the oil-absorbing cotton;

[0031] An oil storage cotton body is arranged between two layers of oil-absorbing cotton bodies, and a first pressure plate and a second pressure plate are arranged between the oil-absorbing cotton body and the oil storage cotton body. The outer layer of the oil storage cotton body includes a second oil-isolating film. When the oil in the oil storage cotton body reaches a certain amount, the first pressure plate and the second pressure plate on both sides of the oil storage cotton body are used to clamp and squeeze the oil storage cotton body to squeeze out the oil in the oil storage cotton body, thereby extending the service life of the oil storage cotton body and further extending the service life of the oil-absorbing cotton body. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of Example 1 of the present application.

[0033] Figure 2 It is a schematic diagram used to show the structure of oil-absorbing cotton.

[0034] Figure 3 yes Figure 1 An enlarged schematic diagram in part A.

[0035] Figure 4 It is a structural diagram of Example 2 of the present application.

[0036] Figure 5 yes Figure 4 An enlarged schematic diagram is shown in Part B.

[0037] Figure 6 Schematic diagram of the structure of Example 3 of the present application.

[0038] Figure 7 It is a structural diagram of Example 4 of the present application.

[0039] Figure 8 yes Figure 7 An enlarged schematic diagram in part C.

[0040] Explanation of reference numerals: 1. separation box; 11. separation chamber; 12. water inlet; 121. water inlet valve; 13. water outlet; 131. water outlet valve; 14. pressure sensor; 15. first driving member; 16. mounting groove; 2. oil-absorbing cotton; 21. frame; 211. limit strip; 212. groove; 213. connecting block; 214. third driving member; 22. oil-absorbing cotton body; 221. first oil-isolating membrane; 222. first oil-isolating membrane An oil hole; 23. Rolling shaft; 24. Mounting seat; 241. First block; 242. Second block; 25. Second driving member; 26. Oil storage cotton body; 261. Second oil-isolating membrane; 262. Second oil hole; 263. Oil pipe; 27. First pressure plate; 271. First through hole; 28. Second pressure plate; 281. Second through hole; 3. Control terminal; 4. Partition; 41. Water outlet; 411. Water valve. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1 -Attached Figure 8 This application is described in further detail.

[0042] The inventors of this application discovered that the wastewater discharge volume generated by the cold dryer and air storage tank in a compressed air system fluctuates significantly, and existing oil-water separation devices struggle to adapt to these fluctuations, resulting in poor oil-water separation and potentially hazardous emissions. To address this, they installed a compressed air drainage oil-water separation device, described in this application, between the oil storage separation tank and the sewage network to further treat the wastewater. The technical solution employed in this application is well suited to addressing large fluctuations in discharge volume, and is described in further detail below.

[0043] Example 1

[0044] Reference Figure 1 A compressed air drainage oil-water separation device includes a separation box 1, oil-absorbing cotton 2, and a control terminal 3. The separation box 1 is provided with multiple partitions 4, which are arranged at intervals along the length of the separation box 1. The multiple partitions 4 divide the space of the separation box 1 into multiple separation chambers 11. Multiple oil-absorbing cottons 2 are provided, and the oil-absorbing cottons 2 are removably arranged in the separation chamber 11. The multiple oil-absorbing cottons 2 correspond one-to-one to the multiple separation chambers 11. The side walls of the oil-absorbing cottons 2 are attached to the wall of the separation chamber 11, and the oil-absorbing cottons 2 are slidably connected to the wall of the separation chamber 11 along the height direction of the separation chamber 11.

[0045] Separation box 1 has a water inlet 12 at one end and a water outlet 13 at the other. An inlet pipe and an inlet valve 121 are installed at the inlet 12. The other end of the inlet pipe is connected to the oil-water separator tank. An outlet pipe and an outlet valve 131 are installed at the outlet 13. The other end of the outlet pipe is connected to the sewage network.

[0046] A water inlet 41 is formed through the bottom of the partition 4, and a water valve 411 is provided at the water inlet 41. The water inlet valve 121, the water outlet valve 131 and the water valve 411 are all one-way valves and are all communicatively connected to the control terminal 3.

[0047] Reference Figure 2 and Figure 3 Specifically, the oil-absorbing cotton 2 includes a frame 21 and an oil-absorbing cotton body 22. The frame 21 is arranged around the circumference of the oil-absorbing cotton body 22, and the side walls of the frame 21 are used to fit against the wall of the separation chamber 11. Limiting bars 211 are integrally formed on the upper and lower sides of the frame 21. The two limiting bars 211 are respectively used to abut the upper and lower surfaces of the oil-absorbing cotton body 22 to limit the oil-absorbing cotton body 22.

[0048] In this embodiment, the upper and lower surfaces of the oil-absorbing cotton body 22 are both square, and the frame 21 includes four enclosing strips corresponding to the four side walls of the oil-absorbing cotton body 22. A groove 212 is formed in the middle of each enclosing strip, with the concave surface of the groove 212 facing the wall of the separation chamber 11. Connecting blocks 213 are provided at both ends of the groove 212. A rolling shaft 23 is disposed in the groove 212, and the ends of the rolling shaft 23 are connected to the connecting blocks 213 in a rolling manner about the central axis of the rolling shaft 23.

[0049] Furthermore, in this embodiment, the rolling shaft 23 is made of silica gel or rubber material to reduce the upward leakage of sewage in the separation chamber 11.

[0050] The implementation principle of Example 1 is as follows: when sewage is discharged from the drain outlet of the oil-water separation tank, the water inlet valve 121 is opened through the control terminal 3, so that the sewage enters the first separation chamber 11 in the separation box 1 through the water inlet pipe and the water inlet 12; after the sewage enters the separation chamber 11, it reaches between the bottom wall of the separation chamber 11 and the oil-absorbing cotton 2, and the sewage exerts an upward force on the oil-absorbing cotton 2, causing the oil-absorbing cotton 2 to gradually move upward; after the bearing capacity in the first separation chamber 11 reaches its limit, the water inlet valve 121 is closed through the control terminal 3.

[0051] After the sewage in the first separation chamber 11 has been left to stand for a period of time, part of the oil is absorbed by the oil-absorbing cotton 2 in the first separation chamber 11; then, the water valve 411 between the first separation chamber 11 and the second separation chamber 11 is opened by the control terminal 3, so that the sewage in the first separation chamber 11 that has undergone the first oil-water separation enters the next separation chamber 11.

[0052] After the wastewater in the first separation chamber 11 has completely entered the next separation chamber 11, the water inlet valve 121 is reopened to allow the newly discharged wastewater from the oil-water separation tank to enter the first separation chamber 11. The above steps are then repeated, allowing the wastewater to undergo multiple oil-water separation processes after leaving the oil-water separation tank and before reaching the sewage network. This method eliminates the need for additional modification to the oil-water separation device, and the position of the oil-absorbing cotton 2 in the oil-water separation device is determined by the amount of drainage. Therefore, it is suitable for situations where the drainage volume varies significantly, effectively reducing the possibility of oil being discharged into the sewage network.

[0053] After the oil-absorbing cotton 2 has been used for a period of time, it can be replaced by removing the oil-absorbing cotton body 22 from the frame 21 and replacing it with a new oil-absorbing cotton body 22 .

[0054] In summary, by dividing the separation box 1 into multiple separation chambers 11 and placing oil-absorbing cotton 2 in each separation chamber 11, the surface area for oil-water separation can be effectively increased, improving separation efficiency. The design of the oil-absorbing cotton 2 sliding along the height of the separation chamber 11 allows the oil-absorbing cotton 2 to adjust according to changes in the wastewater level, thereby always being in the optimal oil absorption position. Furthermore, through intelligent control of the water inlet valve 121, water outlet valve 131, and water valve 411 by the control terminal 3, precise regulation of the entire oil-water separation process can be achieved, ensuring that the separation effect is minimally affected by fluctuations in the discharge volume.

[0055] Example 2

[0056] Reference Figure 4 and Figure 5 The difference between this embodiment and embodiment 1 is that a pressure sensor 14 is provided on the bottom wall of the separation chamber 11. The pressure sensor 14 is used to obtain the pressure signal exerted on the bottom wall of the separation chamber 11 and send the pressure signal to the control terminal 3.

[0057] A first driving member 15 is provided in the separation chamber 11 . The first driving member 15 is used to drive the oil-absorbing cotton 2 to slide relative to the separation chamber 11 . The first driving member 15 is communicatively connected to the control terminal 3 .

[0058] Specifically, a mounting base 24 is fixedly connected to the side wall of the frame 21. A mounting groove 16 is formed along the wall of the separation chamber 11 along its height, and the mounting groove 16 is used for sliding connection of the mounting base 24. The first driving member 15 is installed in the mounting groove 16, and the output end of the first driving member 15 is connected to the mounting base 24.

[0059] Specifically, the pressure sensor 14 is a piezoelectric pressure sensor 14 or a resistive pressure sensor 14, which is installed at the center of the bottom wall of the separation chamber 11 to monitor the liquid pressure in the separation chamber 11 in real time. The first driving member 15 is a cylinder or a hydraulic cylinder.

[0060] The implementation principle of Example 2 is as follows: the pressure signal received by the bottom wall of the separation chamber 11 is obtained through the pressure sensor 14, and the pressure signal is sent to the control terminal 3; the control terminal 3 calculates the depth of the sewage at this time, that is, the position where the oil-absorbing cotton 2 should be located, based on the pressure signal, the area of the bottom wall of the separation chamber 11 and the density of the sewage; the control terminal 3 drives the oil-absorbing cotton 2 to the position where the oil-absorbing cotton 2 should be located through the first driving member 15, thereby reducing the possibility of sewage seeping out from between the oil-absorbing cotton 2 and the wall of the separation chamber 11; when the sewage in the separation chamber 11 is in a static state, the oil-absorbing cotton 2 is moved down a little at regular intervals to ensure that the oil absorption surface is always in an effective oil absorption state.

[0061] By installing a pressure sensor 14 on the bottom wall of the separation chamber 11, the liquid pressure within the separation chamber 11 can be monitored in real time, providing feedback information to the control terminal 3. The addition of the first drive element 15 makes the sliding of the oil-absorbing cotton 2 more flexible, allowing dynamic adjustment according to actual needs. This design not only improves the efficiency of oil-water separation but also enhances the adaptability of the device.

[0062] Example 3

[0063] Reference Figure 6 The difference between this embodiment and embodiment 2 is that the mounting base 24 includes a first block 241 and a second block 242, the first block 241 is fixedly connected to the frame 21, and the second block 242 is fixedly connected to the first driving member 15, and the first block 241 can rotate relative to the second block 242 with the horizontal center axis of the oil-absorbing cotton 2 as the axis.

[0064] The second block 242 is provided with a second driving member 25 , the output shaft of which is connected to the frame 21 . The second driving member 25 is used to drive the oil-absorbing cotton 2 to flip, thereby achieving uniform oil absorption on both sides of the oil-absorbing cotton 2 .

[0065] The second driving member 25 is also communicatively connected to the control terminal 3 . After the sewage in the separation chamber 11 flows to the next separation chamber 11 , the second driving member 25 is activated through the control terminal 3 , and the second driving member 25 is used to drive the oil-absorbing cotton 2 to flip.

[0066] The implementation principle of Example 3 is as follows: after the sewage in the separation chamber 11 is treated for the first time, the oil in the oil-absorbing cotton 2 is mostly gathered on the side of the oil-absorbing cotton 2 close to the sewage (this side is defined as the first side, and the other side of the oil-absorbing cotton 2 is defined as the second side). At this time, the control terminal 3 controls the oil-absorbing cotton 2 to flip through the second driving member 25, so that the first side flips to a position away from the sewage, thereby using the cleaner second side of the oil-absorbing cotton 2 to absorb the sewage entering the separation chamber 11 for the second time; and in the process of oil absorption treatment, the oil closer to the first side will also gradually transfer to the middle of the oil-absorbing cotton 2 under the action of its own gravity; after the second oil absorption treatment is completed, the oil-absorbing cotton 2 is controlled by the control terminal 3 to flip again. At this time, since the oil on the first side has gradually transferred to the middle position of the oil-absorbing cotton 2, the first side becomes a cleaner side, and so on. The utilization rate of the oil-absorbing cotton 2 is improved, the service life of the oil-absorbing cotton 2 is extended, and the replacement frequency of the oil-absorbing cotton 2 is reduced.

[0067] Example 4

[0068] Reference Figure 7 and Figure 8 The difference between this embodiment and embodiment 3 is that the oil-absorbing cotton body 22 is provided with two layers, and an oil-storing cotton body 26 is provided between the two layers of oil-absorbing cotton body 22. A first oil-isolating film 221 is provided on the surface of the oil-absorbing cotton body 22 near the oil-storing cotton body 26, and a plurality of first oil-through holes 222 are formed through the first oil-isolating film 221. The oil-storing cotton body 26 is covered with a second oil-isolating film 261, and a plurality of second oil-through holes 262 are formed through the second oil-isolating film 261. An oil passage 263 is provided between the first oil-isolating film 221 and the second oil-isolating film 261, and the two ends of the oil passage 263 are respectively connected to the first oil-through holes 222 and the second oil-through holes 262 arranged opposite each other.

[0069] The oil pipe 263 is an elastic hose made of silicone or rubber material and has good flexibility.

[0070] A first pressure plate 27 and a second pressure plate 28 are disposed between the oil-storing cotton body 26 and the oil-absorbing cotton body 22, with the second pressure plate 28 positioned between the first pressure plate 27 and the oil-absorbing cotton body 22. Both the first and second pressure plates 27 and 28 are slidably connected to the frame 21 along the thickness of the frame 21, with a gap between them. A third drive member 214 is provided in the frame 21, which is communicatively connected to the control terminal 3 and is used to drive the second pressure plate 28 to move relative to the frame 21. The first pressure plate 27 is formed with a plurality of first through-holes 271 for passage of the oil passage 263. The diameter of the first through-holes 271 matches the outer diameter of the oil passage 263. The second pressure plate 28 is formed with a plurality of second through-holes 281 for passage of the oil passage 263. The diameter of the second through-holes 281 matches the outer diameter of the oil passage 263. The plurality of first through holes 271 and the plurality of second through holes 281 are staggered.

[0071] The principle of the embodiment 4 is as follows: after the oil storage amount in the oil storage cotton body 26 reaches a certain amount, the third driving member 214 is started by controlling the control terminal 3, and the third driving member 214 drives the second pressure plate 28 to move in the direction close to the oil storage cotton body 26; after the second pressure plate 28 abuts against the first pressure plate 27, it continues to drive the first pressure plate 27 to move synchronously in the direction close to the oil storage cotton body 26, and finally the first pressure plates 27 and the second pressure plates 28 on both sides of the oil storage cotton body 26 form a pressure on the oil storage cotton body 26. At the same time, since the first through hole 271 and the second through hole 281 are staggered, the first pressure plate 27 and the second pressure plate 28 clamp and squeeze the oil pipe 263, temporarily cutting off the passage of oil between the oil-absorbing cotton body 22 and the oil-storing cotton body 26, thereby squeezing the oil in the oil-storing cotton body 26 from the oil outlet hole, so that the oil enters the external oil storage equipment through the oil outlet pipe, thereby extending the service life of the oil-storing cotton body 26, further extending the service life of the oil-absorbing cotton body 22, and reducing the replacement frequency.

[0072] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A compressed air drainage oil-water separation device, characterized by: The invention comprises a separation box (1), oil-absorbing cotton (2) and a control terminal (3); a plurality of partitions (4) are provided in the separation box (1); the plurality of partitions (4) are arranged at intervals along the length direction of the separation box (1); the plurality of partitions (4) divide the space of the separation box (1) into a plurality of separation chambers (11); The oil-absorbing cotton (2) is provided in plurality, and the oil-absorbing cotton (2) is detachably provided in the separation chamber (11), and the plurality of oil-absorbing cottons (2) correspond to the plurality of separation chambers (11) one by one; the side wall of the oil-absorbing cotton (2) is attached to the chamber wall of the separation chamber (11), and the oil-absorbing cotton (2) is slidably connected to the chamber wall of the separation chamber (11) along the height direction of the separation chamber (11); The separation box (1) is provided with a water inlet (12) at one end and a water outlet (13) at the other end; the separation box (1) is provided with a water inlet pipe and a water inlet valve (121) at the position of the water inlet (12), and the other end of the water inlet pipe is connected to the oil-water separation tank; the separation box (1) is provided with a water outlet pipe and a water outlet valve (131) at the water outlet (13), and the other end of the water outlet pipe is connected to the sewage pipe network; A water port (41) is provided through the bottom of the partition (4), and a water valve (411) is provided on the partition (4) at the water port (41); the water inlet valve (121), the water outlet valve (131) and the water valve (411) are communicatively connected to the control terminal (3); a pressure sensor (14) is provided on the bottom wall of the separation chamber (11), and the pressure sensor (14) is used to obtain a pressure signal on the bottom wall of the separation chamber (11) and send the pressure signal to the control terminal (3); a first driving member (15) is provided in the separation chamber (11), and the first driving member (15) is used to drive the oil-absorbing cotton (2) to slide relative to the separation chamber (11). 15) is communicatively connected to the control terminal (3); the oil-absorbing cotton (2) includes a frame (21) and an oil-absorbing cotton body (22), the frame (21) is arranged around the circumference of the oil-absorbing cotton body (22), and the frame (21) is used to fit with the cavity wall of the separation cavity (11); the output end of the first driving member (15) is connected to a mounting seat (24), and the mounting seat (24) is used for connection with the frame (21); the mounting seat (24) is provided with a second driving member (25), the output shaft of the second driving member (25) is connected to the frame (21), and the oil-absorbing cotton (2) is symmetrically arranged with the output shaft of the second driving member (25) as the axis; the second driving member (25) is used to drive the oil-absorbing cotton (2) to flip.

2. The compressed air drainage oil-water separation device according to claim 1, characterized in that: Limiting strips (211) are provided on both the upper and lower sides of the frame (21), and the two limiting strips (211) are used to abut against the upper surface and the lower surface of the oil-absorbing cotton body (22), respectively.

3. A compressed air drainage oil-water separation device according to claim 1 or 2, characterized in that: The surface of the frame (21) that is in contact with the cavity wall of the separation cavity (11) is connected in a rolling manner with a rolling shaft (23), and the rotation axis of the rolling shaft (23) is in a horizontal direction.

4. The compressed air drainage oil-water separation device according to claim 1, characterized in that: The oil-absorbing cotton body (22) is detachably connected to the frame body (21).

5. The compressed air drainage oil-water separation device according to claim 1, characterized in that: The oil-absorbing cotton body (22) is provided with two layers, and an oil-storing cotton body (26) is provided between the two layers of the oil-absorbing cotton body (22).

6. The compressed air drainage oil-water separation device according to claim 5, characterized in that: A first oil-isolating film (221) is provided on the surface of the oil-absorbing cotton body (22) close to the oil-storing cotton body (26), and a plurality of first oil-through holes (222) are formed through the first oil-isolating film (221); the oil-storing cotton body (26) is covered with a second oil-isolating film (261), and a plurality of second oil-through holes (262) are formed through the second oil-isolating film (261); an oil-through pipe (263) is provided between the first oil-isolating film (221) and the second oil-isolating film (261), and two ends of the oil-through pipe (263) are respectively connected to the first oil-through hole (222) and the second oil-through hole (262) that are arranged opposite to each other.

7. The compressed air drainage oil-water separation device according to claim 6, characterized in that: The oil passage (263) is an elastic hose; a first pressure plate (27) and a second pressure plate (28) are provided between the oil storage cotton body (26) and the oil absorbing cotton body (22), and the second pressure plate (28) is located between the first pressure plate (27) and the oil absorbing cotton body (22); the first pressure plate (27) and the second pressure plate (28) are both connected to the frame body (21) by sliding along the thickness direction of the frame body (21), and there is a gap between the first pressure plate (27) and the second pressure plate (28); the frame body (21) is provided with a third driving member (214), the third driving member (214) is communicatively connected to the control terminal (3), and the third driving member (214) is used to drive the second pressure plate (28) relative to the The frame (21) moves; the first pressure plate (27) is provided with a plurality of first perforations (271) for the oil pipe (263) to pass through, and the aperture of the first perforation (271) is consistent with the outer diameter of the oil pipe (263); the second pressure plate (28) is provided with a plurality of second perforations (281) for the oil pipe (263) to pass through, and the aperture of the second perforations (281) is consistent with the outer diameter of the oil pipe (263); the plurality of first perforations (271) and the plurality of second perforations (281) are staggered; the second oil-isolating membrane (261) is provided with an oil outlet hole, and the second oil-isolating membrane (261) is provided with an oil outlet pipe, one end of the oil outlet pipe is connected to the oil outlet hole, and the other end is externally connected to the oil storage device.

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