An oil and gas recovery device and a recovery method

Abstract

An oil and gas recovery device and its recovery method of the present application relate to the technical field of oil and gas recovery. It includes a condenser, an activated carbon adsorption tank, an absorption tower and a spraying assembly. A first air outlet pipe is arranged between the condenser and the activated carbon adsorption tank. The upper end of the activated carbon adsorption tank is communicated with a first exhaust pipe. The bottom of the absorption tower is communicated with a second intake pipe communicated with the first exhaust pipe. A temporary storage tank is arranged beside the absorption tower. A guide oil pipe is arranged between the temporary storage pipe and the bottom of the absorption tower. The temporary storage tank is also communicated with a return oil pipe. The spraying assembly includes a disc, and the disc is connected to the inner peripheral wall of the absorption tower. A plurality of oil guide holes are evenly arranged on the upper end surface of the disc. An oil stop needle is slidably inserted into each oil guide hole. An installation frame is coaxially and slidably sleeved on the peripheral wall of the return oil pipe. One end of each oil stop needle away from the disc is connected to the installation frame. A driving member is arranged on the inner peripheral wall of the absorption tower. The present application has the effects of improving the recovery and utilization rate of resources and reducing environmental pollution.

Description

Technical Field

[0001] This application relates to the technical field of oil and gas recovery, and in particular to an oil and gas recovery device and its recovery method. Background Art

[0002] In the context of global climate change, green and low-carbon development has become the common goal pursued by all countries. As an effective environmental protection measure, oil and gas recovery technology can significantly reduce carbon emissions and promote green and low-carbon development. Through oil and gas recovery, enterprises can not only reduce their own carbon emissions but also contribute to the green and low-carbon development of the entire society.

[0003] Existing oil and gas recovery equipment mainly includes condensers, activated carbon adsorption tanks, and absorption towers. First, the oil and gas pass through the condenser to condense the lighter hydrocarbon vapors in the oil and gas into a liquid state, while the heavier oil and gas enter the activated carbon adsorption tank. The activated carbon in the activated carbon adsorption tank can adsorb organic substances such as benzene in the oil and gas. The gas passing through the activated carbon can be discharged into the air, and the oil and gas adsorbed on the activated carbon need to be desorbed and then sent to the absorption tower for recovery.

[0004] The absorption tower mainly includes a tower body. A spraying component is arranged in the upper space of the tower body. The oil and gas desorbed from the activated carbon enter the tower from the bottom end of the tower body. The spraying component sprays the solvent (oil) from the upper part of the tower body. When the solvent contacts the oil and gas, the solvent can absorb the organic substances in the oil and gas.

[0005] However, in the prior art, the solvent sprayed by the spraying component in the absorption tower is difficult to cover all areas in the absorption tower, and the oil and gas entering the tower from the bottom end of the absorption tower fills the entire internal space of the absorption tower. Therefore, part of the oil and gas does not come into sufficient contact and dissolution with the solvent and is discharged from the gas outlet at the top of the tower, resulting in waste of resources and environmental pollution. Summary of the Invention

[0006] The purpose of this application is to provide an oil and gas recovery device and its recovery method, which can make the solvent sprayed by the spraying component in the absorption tower cover the entire internal space of the absorption tower as much as possible, so that the organic substances in the oil and gas in the absorption tower are fully dissolved in the solvent, thereby improving the resource recovery utilization rate and reducing environmental pollution.

[0007] In the first aspect, an oil and gas recovery device provided by this application adopts the following technical solution:

[0008] By adopting the above technical solution, a condenser is provided. A first intake pipe is connected to the side wall, a first outlet pipe communicates with the top of the condenser, and a first oil outlet pipe is arranged at the bottom of the condenser. The end of the first oil outlet pipe far from the condenser is communicated with an external oil storage tank;

[0009] An activated carbon adsorption tank is connected to one end of the first air outlet pipe far from the condenser at the bottom, and a first exhaust pipe is connected to the upper end of the activated carbon adsorption tank;

[0010] An absorption tower is provided with a second exhaust pipe at the top. A second intake pipe is connected to the bottom of the absorption tower. The second intake pipe is connected to the first exhaust pipe. A valve is provided on the second intake pipe. A temporary storage tank is provided beside the absorption tower. A guide oil pipe is provided between the temporary storage pipe and the bottom of the absorption tower. A return oil pipe is also connected to the temporary storage tank. A pump is provided on the return oil pipe. One end of the return oil pipe far from the temporary storage tank extends into the interior of the absorption tower and is located at a high position in the absorption tower. A second oil outlet pipe is also connected to the temporary storage pipe. One end of the second oil outlet pipe far from the temporary storage tank is connected to an external oil storage tank;

[0011] A spraying assembly includes a disc coaxially and fixedly connected to the inner peripheral wall of the absorption tower. A plurality of oil guide holes are evenly formed on the upper end surface of the disc. The plurality of oil guide holes are coaxially arranged with the disc and all penetrate through the disc. One end of the return oil pipe located inside the absorption tower is above the disc. An oil stop needle is slidably inserted into each oil guide hole. The upper end aperture of the oil guide hole is larger than the lower end aperture. The diameter of the oil stop needle is smaller than the upper end aperture of the oil guide hole and larger than the lower end aperture of the oil guide hole. The oil stop needle is coaxially arranged with the oil guide hole. An installation frame is coaxially and slidably sleeved on the peripheral wall of the return oil pipe. One end of each oil stop needle far from the disc is connected to the installation frame. A driving member for driving the installation frame to move in a direction close to or away from the disc is provided on the inner peripheral wall of the absorption tower. As the installation frame moves up and down, the fluid in the oil guide hole flows out of the oil guide hole in a droplet shape, increasing the contact area between the oil and gas and the solvent.

[0012] By adopting the above technical solution, the driving member includes a mounting plate fixedly installed on the inner peripheral wall of the absorption tower. A driving motor is provided on the mounting plate. The output shaft of the driving motor is coaxially and fixedly connected with a cam. A cross plate is provided on the installation frame. The cross plate is slidably abutted against the cam.

[0013] By adopting the above technical solution, a gas storage bin with an upward opening is arranged at the bottom inside the absorption tower. A connecting column is connected to the side wall of the gas storage bin, and the end of the connecting column away from the gas storage bin is fixedly connected to the inner wall of the absorption tower. A gas storage bag is arranged inside the gas storage bin. A plurality of air outlet holes are evenly formed in the upper part of the gas storage bag. The second air inlet pipe extends into the interior of the gas storage bag. The amount of gas entering the gas storage bag per unit time is greater than the amount of gas leaving the gas storage bag per unit time. Therefore, the pressure inside the air bag increases, and the gas ejected from the air outlet holes has a certain momentum, which can disperse the liquid droplets inside the absorption tower into more small liquid droplets, increasing the contact area between the oil gas and the solvent.

[0014] By adopting the above technical solution, the mounting frame is provided with a pressing rod. A through groove for the pressing rod to pass through is formed in the disc. The end of the pressing rod away from the mounting frame abuts against the gas storage bag. As the mounting frame moves up and down, the pressing rod reciprocally presses the gas storage bag, further increasing the pressure inside the gas storage bag. The gas ejected from the air outlet holes has a stronger momentum, and the impact degree between the gas ejected from the air outlet holes and the liquid droplets increases, making it easier for the gas to dissolve in the solvent.

[0015] By adopting the above technical solution, a plurality of flow grooves are formed in the outer peripheral wall of the disc. The plurality of flow grooves all penetrate the disc, and the plurality of flow grooves are evenly spaced around the axis of the disc.

[0016] By adopting the above technical solution, a temperature reduction component is arranged on the oil return pipe. The temperature reduction component can reduce the temperature of the solvent inside the oil return pipe to facilitate the formation of liquid droplets in the oil guiding holes.

[0017] By adopting the above technical solution, the temperature reduction component includes a return pipe, and the return pipe is a middle section of the oil return pipe.

[0018] By adopting the above technical solution, a detection component is arranged at the second exhaust pipe. The detection component can detect the quality of the exhausted gas.

[0019] By adopting the above technical solution, a filter screen is arranged at the connection between the absorption tower and the oil guiding pipe.

[0020] In a second aspect, an oil and gas recovery method provided by the present application, based on the above oil and gas recovery device, includes the following steps:

[0021] S1: Start the condenser, open the first air inlet pipe. The liquid inside the condenser enters the storage oil tank through the first oil outlet pipe, and the gas condensed by the condenser enters the activated carbon adsorption tank through the first air outlet pipe;

[0022] S2: The gas after passing through the activated carbon adsorption tank is discharged into the atmosphere;

[0023] S3: Open the valve on the second intake pipe, close the second exhaust pipe on the activated carbon adsorption tank, start the spray assembly, use the cleaning device to desorb the oil and gas adsorbed on the activated carbon, and the desorbed oil and gas enter the absorption tower through the second intake pipe;

[0024] S4: The spray assembly produces droplets relatively evenly in the absorption tower. The droplets increase the contact area with the oil and gas. The oil and gas ejected from the bottom of the absorption tower has a certain momentum, which collides with the droplets and is fully blended, and the droplets better absorb the organic matter in the oil and gas;

[0025] S5: The liquid absorbing the oil and gas enters the storage tank. A part of the liquid in the storage pipe flows back into the oil storage tank, and another part of the liquid flows back into the spray assembly;

[0026] S6: Cycle according to the above operation steps.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The spray assembly in the present application can continuously produce a plurality of solvent droplets, and a plurality of oil guiding holes are evenly distributed on the disc, so that the produced solvent droplets can cover the entire internal space of the absorption tower as much as possible, so that the solvent ejected by the spray assembly can contact the oil and gas in all areas of the absorption tower as much as possible, and then the organic matter in the oil and gas in the absorption tower is fully dissolved in the solvent, improving the resource recovery rate and reducing environmental pollution; in addition, compared with the setting of the sprinkler head in the traditional spray assembly, the coverage area of the droplets produced by the disc in the present application is larger. At the same time, the solvent ejected by the sprinkler head in the traditional spray assembly is in the shape of a water column, while the solvent in the present application is in the shape of droplets, and its contact area with the oil and gas in the absorption tower is larger, so that the solvent can better absorb and dissolve the organic matter in the oil and gas in the absorption tower, further improving the resource recovery rate and reducing environmental pollution;

[0029] 2. In this application, the setting of the storage airbag and the extrusion rod enables the oil and gas ejected from the air outlet holes of the storage airbag to have a certain momentum. Therefore, the oil and gas ejected from the air outlet holes will collide with the solvent droplets in the absorption tower to a certain extent. On the one hand, heat will be generated during the collision between the oil and gas and the solvent droplets, and the dissipation of heat will cause the temperature in the absorption tower to rise, thereby accelerating the dissolution of the organic matter in the oil and gas into the droplet-shaped solvent, and further improving the resource recovery rate; on the other hand, the solvent droplets will disperse into more and smaller droplets after colliding with the oil and gas. They can occupy more space in the absorption tower, and the total area of the dispersed small droplets will increase, thereby further increasing the contact area between the solvent droplets and the oil and gas in the absorption tower, and further accelerating the dissolution of the organic matter in the oil and gas into the droplet-shaped solvent; at the same time, after the oil and gas collide with the droplets, the falling speed of the droplets and the rising speed of the oil and gas will both decrease, so the contact time between the solvent droplets and the oil and gas in the absorption tower will also increase, thereby further improving the effect of dissolving the organic matter in the oil and gas into the droplet-shaped solvent;

[0030] 3. During the process of manufacturing droplets in this application, the droplets are manufactured by driving the motor to drive the mounting frame and the oil stop needle to move up and down. And making the oil and gas have a certain momentum is also achieved by driving the motor to drive the extrusion rod to squeeze the storage airbag. The structural drive in this application is achieved by a single drive source, which reduces the energy consumption as a whole;

[0031] 4. Since heat will be generated during the collision between the oil and gas in the absorption tower and the solvent droplets, the solvents at the bottom of the absorption tower and in the storage tank both have a certain temperature. And high-temperature solvents are not easy to form droplets. Therefore, through the setting of the cooling component, the temperature of the solvent entering the spraying component can be reduced to facilitate the formation of droplets. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall structural schematic diagram of Embodiment 1 of this application;

[0033] Figure 2 is the structural schematic diagram of the absorption tower in Embodiment 1 of this application;

[0034] Figure 3 is Figure 2 the partial enlarged schematic diagram of Part A therein;

[0035] Figure 4 is Figure 3 the partial enlarged schematic diagram of Part B therein;

[0036] Figure 5 is Figure 4 the partial enlarged schematic diagram of Part C therein;

[0037] Figure 6It is a schematic structural diagram of the spray component in Embodiment 1 of the present application;

[0038] In the figure, 1 is a condenser; 11 is a first intake pipe; 12 is a first outlet pipe; 13 is a first oil outlet pipe; 2 is an activated carbon adsorption tank; 21 is a first exhaust pipe; 3 is an absorption tower; 31 is a second exhaust pipe; 32 is a second intake pipe; 33 is an electric valve; 34 is an oil guide pipe; 4 is a storage tank; 41 is a return oil pipe; 42 is a pump; 43 is a second oil outlet pipe; 5 is a spray component; 51 is a disc; 511 is an oil guide hole; 512 is a flow groove; 513 is a through groove; 52 is an oil stop pin; 53 is a mounting bracket; 531 is a pressing rod; 532 is a sleeve; 533 is a connecting rod; 54 is a driving member; 541 is a mounting plate; 542 is a driving motor; 543 is a cam; 544 is a cross plate; 6 is a gas storage chamber; 61 is a gas storage bag; 611 is an air outlet hole; 62 is a connecting column; 7 is a cooling component; 8 is a detection component; 9 is a filter screen. Specific embodiments

[0039] The following will Figures 1-6 further describe the present application in detail with reference to the attached Embodiment 1

[0040] An oil and gas recovery device, referring to Figure 1 and Figure 2 , includes a condenser 1, an activated carbon adsorption tank 2, an absorption tower 3 and a spray component 5.

[0041] In this embodiment, the condenser 1 is integrally arranged in a columnar shape. A first intake pipe 11 is fixedly connected to the peripheral wall of the condenser 1. The top of the condenser 1 is fixedly communicated with a first outlet pipe 12. The bottom of the condenser 1 is fixedly communicated with a first oil outlet pipe 13. One end of the first oil outlet pipe 13 far from the condenser is communicated with an external storage oil tank (not shown in the figure). Electric valves are provided on the first intake pipe 11, the first outlet pipe 12 and the first oil outlet pipe 13. The electric valves in this embodiment are all set as electric valves 33, and they are all electrically connected to the control center.

[0042] The bottom of the activated carbon adsorption tank 2 is communicated with one end of the first outlet pipe 12 far from the condenser 1. The upper end of the activated carbon adsorption tank 2 is fixedly communicated with a first exhaust pipe 21. In this embodiment, an electric valve 33 is also provided on the first exhaust pipe 21 and is electrically connected to the control center. At the same time, a detection component 8 is also provided on the first exhaust pipe 21 in this embodiment. The detection component 8 in this embodiment is used to detect whether the various indicators in the discharged gas meet the standards. When the data detected by the detection component 8 all meet the standards, the electric valve 33 on the first exhaust pipe 21 can be continuously in an open state; otherwise, the electric valve 33 on the first exhaust pipe 21 is in a closed state.

[0043] At the top of the absorption tower 3, a second exhaust pipe 31 is provided. Similarly, an electric valve 33 and a detection component 8, which are the same as those described above, are provided on the second exhaust pipe 31.

[0044] At the bottom of the absorption tower 3, a second intake pipe 32 is connected. The second intake pipe 32 is connected to the first exhaust pipe 21. An electric valve 33 is provided on the second intake pipe 32. When the electric valve 33 on the first exhaust pipe 21 is in the open state, the electric valve 33 on the second intake pipe 32 is in the closed state. Conversely, when the electric valve 33 on the first exhaust pipe 21 is in the closed state, the electric valve 33 on the second intake pipe 32 is in the open state.

[0045] A temporary storage tank 4 is provided beside the absorption tower 3. A fuel guiding pipe 34 is provided between the temporary storage pipe and the bottom of the absorption tower 3. The upper end of the temporary storage tank 4 is also connected to a return oil pipe 41. A pump 42 is provided on the return oil pipe 41. One end of the return oil pipe 41 away from the temporary storage tank 4 extends into the interior of the absorption tower 3 and is located at the high position of the absorption tower 3. A second oil outlet pipe 43 is also connected to the temporary storage pipe. One end of the second oil outlet pipe 43 away from the temporary storage tank 4 is connected to an external oil storage tank (not shown in the figure). Electric valves 33 are also provided on the fuel guiding pipe 34, the return oil pipe 41 and the second oil outlet pipe, and these electric valves 33 are all electrically connected to the control center.

[0046] Refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the spraying component 5 includes a disc 51, a mounting frame 53 and an oil stop pin 52 (in combination with Figure 6 ).

[0047] The disc 51 is coaxially and fixedly connected to the inner peripheral wall of the absorption tower 3. A plurality of oil guiding holes 511 are evenly formed on the upper end surface of the disc 51. The plurality of oil guiding holes 511 are coaxially arranged with the disc 51 and all penetrate through the disc 51. One end of the return oil pipe 41 located inside the absorption tower 3 is located above the disc 51 and is coaxially arranged with the disc 51.

[0048] In this embodiment, the mounting frame 53 is arranged in a circular spider web shape. The mounting frame 53 is coaxially and slidably sleeved on the outer peripheral wall of the return oil pipe 41. The mounting frame 53 is coaxially arranged with the disc 51 and is located above the disc 51.

[0049] In this embodiment, a plurality of oil stop needles 52 are provided. The plurality of oil stop needles 52 are fixedly installed on the lower end surface of the mounting frame 53, and the plurality of oil stop needles 52 correspond to the plurality of oil guiding holes 511 one by one. The oil stop needles 52 are coaxially and slidably inserted into the oil guiding holes 511. The upper part of the oil guiding hole 511 is cylindrical, and the lower part of the oil guiding hole 511 is cylindrical platform-shaped. The aperture of the upper part of the oil guiding hole 511 is larger than that of the lower part. The diameter of the oil stop needle 52 is smaller than the aperture of the upper part of the oil guiding hole 511, and the diameter of the oil stop needle 52 is larger than the aperture of the lower part of the oil guiding hole 511. A driving member 54 for driving the mounting frame 53 to move in a direction close to or away from the disc 51 is provided on the inner peripheral wall of the absorption tower 3.

[0050] When the absorption tower 3 needs to dissolve and absorb the oil and gas entering the absorption tower 3 from the second intake pipe 32, first open the electric valves 33 on the oil guiding pipe 34 and the return pipe 41. The valve on the second oil outlet pipe 43 is temporarily closed. Start the pump 42 and the driving member 54, and then open the electric valve 33 on the second intake pipe 32. The pump 42 pumps the solvent in the temporary storage pipe into the absorption tower 3 through the return pipe 41. The solvent coming out of the oil outlet pipe then falls onto the upper surface of the disc 51. Then the solvent on the disc 51 flows into the oil guiding hole 511 through the gap between the oil guiding hole 511 and the oil stop needle 52. The initial state of the oil stop needle 52 is the deepest position inserted into the oil guiding hole 511, that is, the end of the oil stop needle 52 away from the mounting frame 53 abuts against the smaller diameter hole wall at the lower part of the oil guiding hole 511. At this time, the oil stop needle 52 blocks the oil guiding hole 511, and the solvent cannot flow out from the lower end of the oil guiding hole 511. Then the driving member 54 can drive the mounting frame 53 to move in a direction close to or away from the disc 51, that is, drive the mounting frame 53 to reciprocate in the up and down direction. When the mounting frame 53 moves away from the disc 51, the mounting frame 53 drives the oil stop needle 52 to move upward. At this time, the lower end of the oil stop needle 52 does not abut against the hole wall at the lower part of the oil guiding hole 511. Also, since the aperture of the oil stop needle 52 is smaller than the aperture of the upper part of the oil guiding hole 511, at this time, the oil stop needle 52 does not block the oil guiding hole 511, and part of the solvent flows to the lower part of the oil guiding hole 511. Then drive the mounting frame 53 and the oil stop needle 52 to move downward through the driving member 54, and the oil stop needle 52 blocks the oil guiding hole 511 again, and the solvent that has flowed into the lower part of the oil guiding hole 511 is disconnected from the solvent in the upper part of the oil guiding hole 511. The solvent located in the lower part of the oil guiding hole 511 flows out from the lower end of the oil guiding hole 511. Thus, the solvent flowing out from the lower end of the oil guiding hole 511 forms droplets, and then vertically falls on the bottom of the absorption tower 3. Therefore, under the reciprocating movement of the driving member 54 driving the mounting frame 53 and the oil stop needle 52, droplets will continuously flow out from the lower end of the oil guiding hole 511, thereby continuously generating solvent droplets.

[0051] In the traditional spray component 5, the solvent sprayed by the sprinkler head is a continuous water column, while the solvent in this application is in the form of droplets. Since droplets are generally round or oval, their contact area with the oil and gas in the absorption tower 3 is larger, so that the solvent can better absorb and dissolve the organic matter in the oil and gas in the absorption tower 3, improving the recovery rate of resources and reducing environmental pollution. In addition, in this embodiment, a plurality of oil guide holes 511 are provided, and the plurality of oil guide holes 511 are evenly distributed on the disc 51, so that the produced solvent droplets can cover the entire internal space of the absorption tower 3 as much as possible, so that the solvent falling from the disc 51 can fully contact the oil and gas in all areas of the absorption tower 3 as much as possible, and then the organic matter in the oil and gas in the absorption tower 3 is fully dissolved in the solvent, further improving the recovery rate of resources and reducing environmental pollution.

[0052] In order to avoid excessive gas pressure in the absorption tower 3, in this embodiment, a plurality of flow grooves 512 are provided on the outer peripheral wall of the disc 51. In this embodiment, there are eight flow grooves 512, and the eight flow grooves 512 penetrate the disc 51 in the vertical direction, and the eight flow grooves 512 are evenly spaced around the axis of the disc 51. When the solvent on the upper end surface of the disc 51 is too full, the excess solvent will flow from the flow grooves 512 to the bottom of the absorption tower 3. The oil and gas dissolved with the droplet-shaped solvent will also rise from the flow grooves 512 to the second exhaust pipe 31 and be discharged into the atmosphere along the second exhaust pipe 31. At the same time, the oil and gas passing through the flow grooves 512 and the oil guide holes 511 will contact the solvent again, so as to further dissolve the organic matter in the oil and gas, and further improve the dissolution effect of the solvent on the organic matter in the oil and gas, improve the resource utilization rate and reduce environmental pollution. In addition, the solvent flowing down from the flow grooves 512 can also wash the solvent on the inner wall of the absorption tower 3 to prevent the situation that the solvent adsorbed on the inner wall of the absorption tower 3 cannot be recycled, further improving the resource utilization rate.

[0053] The driving member 54 includes a mounting plate 541 (combined with Figure 6 )

[0054] The mounting plate 541 is arranged in the horizontal direction and is fixedly installed on the inner peripheral wall of the absorption tower 3. A driving motor 542 is arranged on the upper end surface of the mounting plate 541. The output shaft of the driving motor 542 is coaxially and fixedly connected with a cam 543. A sleeve 532 is coaxially and fixedly connected to the mounting frame 53. The sleeve 532 is slidably sleeved on the outer peripheral wall of the return oil pipe 41. A cross plate 544 is fixedly arranged on the outer peripheral wall of the sleeve 532. The cross plate 544 is arranged in the horizontal direction, and the lower end surface of the cross plate 544 is slidably abutted against the cam 543. When the driving motor 542 rotates, the cam 543 drives the cross plate 544 to move up and down reciprocally, so as to drive a plurality of oil stop pins 52 to move up and down reciprocally through the sleeve 532 and the mounting frame 53.

[0055] Among them, a gas storage bin 6 with an upward opening is arranged at the bottom in the absorption tower 3. The gas storage bin 6 in this embodiment is arranged in a cylindrical shape and coaxially arranged with the disc 51. A plurality of connecting columns 62 are fixedly connected to the side wall of the gas storage bin 6. In this embodiment, there are four connecting columns 62, and the four connecting columns 62 are evenly spaced around the axis of the gas storage bin 6. The end of the connecting column 62 far away from the gas storage bin 6 is fixedly connected to the inner wall of the absorption tower 3. A gas storage bag 61 is arranged in the gas storage bin 6. A plurality of air outlet holes 611 are evenly opened on the upper end surface of the gas storage bag 61. In this embodiment, a breathable film (not shown in the figure) is arranged at the air outlet hole 611. The breathable film only allows gas to pass through and does not allow liquid to pass through. Therefore, it is possible to avoid as much as possible the solvent from entering the gas storage bag 61 from the air outlet hole 611. The second intake pipe 32 extends into the interior of the gas storage bag 61.

[0056] It should be noted that in this embodiment, the amount of gas entering the gas storage bag 61 per unit time is greater than the amount of gas leaving the gas storage bag 61 per unit time. Therefore, the pressure inside the airbag increases, and the gas ejected from the air outlet hole 611 has a certain momentum. Therefore, the oil and gas ejected from the air outlet hole 611 will collide with the solvent droplets in the absorption tower 3 to a certain extent. On the one hand, heat will be generated during the collision between the oil and gas and the solvent droplets, and the dissipation of heat will cause the temperature in the absorption tower 3 to rise, thereby accelerating the dissolution of the organic matter in the oil and gas into the droplet-shaped solvent, and further improving the resource recovery rate; on the other hand, the solvent droplets will be dispersed into more and smaller droplets after colliding with the oil and gas. It can occupy more space in the absorption tower 3, and the total area of the dispersed small droplets will increase, thereby further increasing the contact area between the solvent droplets and the oil and gas in the absorption tower 3, and further accelerating the dissolution of the organic matter in the oil and gas into the droplet-shaped solvent; at the same time, after the oil and gas collide with the droplets, the descending speed of the droplets and the ascending speed of the oil and gas will both decrease, so the contact time between the solvent droplets and the oil and gas in the absorption tower 3 will also increase, thereby further improving the effect of dissolving the organic matter in the oil and gas into the droplet-shaped solvent.

[0057] In order to further increase the momentum of the oil and gas ejected from the air outlet hole 611, a pressing rod 531 is arranged on the mounting frame 53.

[0058] In this embodiment, a through groove 513 for the pressing rod 531 to pass through is opened at the center of the disc 51. The mounting frame 53 and the pressing rod 531 are coaxially arranged. There are two connecting rods 533 between the pressing rod 531 and the mounting frame 53. The upper end surface of the pressing rod 531 will not contact the return oil pipe 41. Therefore, the pressing rod 531 will not block the return oil pipe 41. The end of the pressing rod 531 far away from the mounting frame 53 abuts against the gas storage bag 61.

[0059] When the drive motor 542 drives the installation to move up and down through the cam 543, the cross plate 544 and the sleeve 532, the mounting bracket 53 will also drive the extrusion rod 531 to move up and down reciprocally through the connecting rod 533. Therefore, the extrusion rod 531 will reciprocally extrude the air storage bag 61. Under the extrusion of the extrusion rod 531, the pressure inside the air storage bag 61 further increases, and the gas ejected from the air outlet 611 has stronger momentum. The impact degree between the oil and gas ejected from the air outlet 611 and the droplet solvent increases. Therefore, the temperature generated by the oil and gas and the droplet solvent is higher, making the organic matter in the oil and gas more easily soluble in the solvent, thereby further improving the resource utilization rate and reducing environmental pollution.

[0060] In addition, in the process of manufacturing droplets in this embodiment, the drive motor 542 drives the mounting bracket 53 and the oil stop needle 52 to move up and down to manufacture droplets, and to make the oil and gas have stronger momentum, it is also achieved by driving the extrusion rod 531 to move up and down by the drive motor 542 and extruding the air storage bag 61. The structural drive in this embodiment is realized through one drive source, which reduces the energy consumption as a whole.

[0061] Secondly, in order to improve the forming rate of droplets, a cooling component 7 is provided on the oil return pipe 41 in this embodiment. The cooling component 7 in this embodiment is set as a coiled pipe, and the coiled pipe is a section in the middle of the oil return pipe 41 (combined Figure 1 )

[0062] Since heat is generated during the impact of the oil and gas in the absorption tower 3 with the solvent droplets, the solvent at the bottom of the absorption tower 3 and the solvent in the temporary storage tank 4 both have a certain temperature. And high-temperature solvents are not easy to form droplets. Therefore, through the setting of the coiled pipe, the contact area between the oil return pipe 41 and the air is increased, thereby accelerating the heat dissipation efficiency of the solvent in the oil return pipe 41, reducing the temperature of the solvent flowing out of the oil return pipe 41, and thus facilitating the formation of droplets; in addition, the inner walls of the oil guiding holes 511 are all made of oil-repellent materials. The inner walls of the oil guiding holes 511 in this embodiment are made of siloxane. The material made of siloxane has strong oil-repellency and water-repellency. Therefore, the oily solvent in this embodiment is not easy to adhere to the inner walls of the oil guiding holes 511, thus facilitating the formation and detachment of droplets and accelerating the droplet production efficiency; at the same time, siloxane is an inorganic substance and it is also not easy to absorb the organic matter in the oil and gas.

[0063] Finally, a filter screen 9 is provided at the connection between the absorption tower 3 and the oil guiding pipe 34 (combined Figure 1 )

[0064] The installation of the filter screen 9 can prevent impurities in the absorption tower 3 from entering the temporary storage tank 4 as much as possible, thus avoiding the situation where impurities flow into the oil guide holes 511 on the disc 51 through the oil return pipe 41 and causing the oil guide holes 511 to be blocked. In addition, through the installation of the filter screen 9, the purity of the solvent flowing out of the oil return pipe 41 can be ensured as much as possible, thereby further improving the absorption effect of the solvent on the organic matter in the oil and gas, further improving the resource utilization rate and reducing environmental pollution. In addition, the solvent with high purity can also be formed into droplet shape relatively better, improving the practicability of the device to a certain extent. Embodiment 2

[0065] An oil and gas recovery method, based on the above-mentioned oil and gas recovery device, includes the following steps:

[0066] S1: Start the condenser 1, open the first intake pipe 11, the liquid in the condenser 1 enters the storage tank through the first oil outlet pipe 13, and the gas condensed by the condenser 1 enters the activated carbon adsorption tank 2 through the first outlet pipe 12;

[0067] S2: The gas after passing through the activated carbon adsorption tank 2 is discharged into the atmosphere;

[0068] S3: Open the valve on the second intake pipe 32, close the second exhaust pipe 31 on the activated carbon adsorption tank 2, start the spray component 5, and use the cleaning device to desorb the oil and gas adsorbed on the activated carbon. The desorbed oil and gas enter the absorption tower 3 through the second intake pipe 32;

[0069] S4: The spray component 5 manufactures droplets relatively evenly in the absorption tower 3. The droplets increase the contact area with the oil and gas. The oil and gas ejected from the bottom of the absorption tower 3 has a certain momentum, which collides with the droplets. After the oil and gas collide with the solvent droplets, heat is dissipated and the temperature rises, and the droplets better absorb the organic matter in the oil and gas;

[0070] S5: The liquid absorbing the oil and gas enters the temporary storage tank 4. A part of the liquid in the temporary storage pipe flows back to the oil outlet tank, and the other part of the liquid flows back to the spray component 5;

[0071] S6: Repeat according to the above operation steps.

[0072] By recovering and treating the oil and gas through the above method, the organic matter in the oil and gas can be fully dissolved and absorbed, and the content of harmful substances in the gas discharged into the atmosphere is greatly reduced. Therefore, this method can improve the resource utilization rate of the oil and gas and reduce environmental pollution.

[0073] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application thereby. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An oil and gas recovery device, characterized in that, Including: A condenser (1) with a first intake pipe (11) connected to its side wall. The top of the condenser (1) is connected to a first outlet pipe (12), and the bottom of the condenser (1) is provided with a first oil outlet pipe (13). The end of the first oil outlet pipe (13) far from the condenser (1) is connected to an external oil storage tank; An activated carbon adsorption tank (2) with its bottom connected to the end of the first outlet pipe (12) far from the condenser (1). The upper end of the activated carbon adsorption tank (2) is connected to a first exhaust pipe (21); An absorption tower (3) with a second exhaust pipe (31) provided at its top. The bottom of the absorption tower (3) is connected to a second intake pipe (32). The second intake pipe (32) is connected to the first exhaust pipe (21), and a valve is provided on the second intake pipe (32). A temporary storage tank (4) is provided beside the absorption tower (3). A guide oil pipe (34) is provided between the temporary storage tank (4) and the bottom of the absorption tower (3). A return oil pipe (41) is also connected to the temporary storage tank (4), and a pump (42) is provided on the return oil pipe (41). The end of the return oil pipe (41) far from the temporary storage tank (4) extends into the interior of the absorption tower (3) and is located at a high position in the absorption tower (3). A second oil outlet pipe (43) is also connected to the temporary storage tank (4), and the end of the second oil outlet pipe (43) far from the temporary storage tank (4) is connected to an external oil storage tank; A spraying assembly (5) including a disc (51). The disc (51) is coaxially and fixedly connected to the inner peripheral wall of the absorption tower (3). A plurality of oil guide holes (511) are evenly opened on the upper end face of the disc (51). The pore wall of the oil guide hole (511) is made of siloxane. The plurality of oil guide holes (511) are coaxially arranged with the disc (51) and all penetrate through the disc (51). The end of the return oil pipe (41) located in the absorption tower (3) is above the disc (51). An oil stop pin (52) is slidably inserted into each oil guide hole (511). The upper aperture of the oil guide hole (511) is larger than the lower aperture. The diameter of the oil stop pin (52) is smaller than the upper aperture of the oil guide hole (511) and larger than the lower aperture of the oil guide hole (511). The oil stop pin (52) is coaxially arranged with the oil guide hole (511). An installation frame (53) is coaxially and slidably sleeved on the peripheral wall of the return oil pipe (41). One end of each oil stop pin (52) far from the disc (51) is connected to the installation frame (53). A driving member (54) for driving the installation frame (53) to move in a direction close to or away from the disc (51) is provided on the inner peripheral wall of the absorption tower (3). As the installation frame (53) moves up and down, the fluid in the oil guide hole (511) flows out of the oil guide hole (511) in a droplet shape, increasing the contact area between the oil and gas and the solvent; The driving member (54) includes a mounting plate (541) fixedly mounted on the inner peripheral wall of the absorption tower (3). A driving motor (542) is provided on the mounting plate (541). The output shaft of the driving motor (542) is coaxially and fixedly connected with a cam (543). A cross plate (544) is provided on the mounting frame (53), and the cross plate (544) is in sliding contact with the cam (543). At the bottom inside the absorption tower (3), there is an air storage chamber (6) with an upward opening. A connecting column (62) is connected to the side wall of the air storage chamber (6), and the end of the connecting column (62) away from the air storage chamber (6) is fixedly connected to the inner wall of the absorption tower (3). A gas storage bag (61) is arranged inside the air storage chamber (6). Above the gas storage bag (61), there are a plurality of uniformly arranged air outlet holes (611). The second air inlet pipe (32) extends into the interior of the gas storage bag (61). The amount of gas entering the gas storage bag (61) per unit time is greater than the amount of gas leaving the gas storage bag (61) per unit time. Therefore, the pressure inside the airbag increases, and the gas ejected from the air outlet holes (611) has a certain momentum, which can disperse the liquid droplets inside the absorption tower (3) into more small liquid droplets, increasing the contact area between the oil gas and the solvent. The mounting frame (53) is provided with a pressing rod (531). A through groove (513) for the pressing rod (531) to pass through is formed in the disc (51). The end of the pressing rod (531) away from the mounting frame (53) abuts against the gas storage bag (61). As the mounting frame (53) moves up and down, the pressing rod (531) reciprocally presses the gas storage bag (61), further increasing the pressure inside the gas storage bag (61). The gas ejected from the air outlet holes (611) has a stronger momentum, and the impact degree between the gas ejected from the air outlet holes (611) and the liquid droplets increases, making it easier for the gas to dissolve in the solvent. A plurality of flow grooves (512) are formed in the outer peripheral wall of the disc (51). All the plurality of flow grooves (512) penetrate the disc (51), and the plurality of flow grooves (512) are uniformly spaced around the axis of the disc (51).

2. The oil and gas recovery device according to claim 1, characterized in that, A temperature reduction assembly (7) is provided on the oil return pipe (41). The temperature reduction assembly (7) can reduce the temperature of the solvent inside the oil return pipe (41) to facilitate the formation of liquid droplets in the oil guide holes (511).

3. The oil and gas recovery device according to claim 2, characterized in that, The temperature reduction assembly (7) includes a return pipe, and the return pipe is an intermediate section of the oil return pipe (41).

4. A vapor recovery device according to claim 1, characterized in that, A detection assembly (8) is provided at the second exhaust pipe (31). The detection assembly (8) can detect the quality of the exhausted gas.

5. A vapor recovery device according to claim 1, characterized in that, A filter screen (9) is provided at the connection between the absorption tower (3) and the oil guide pipe (34).

6. An oil and gas recovery method, based on the oil and gas recovery device according to any one of claims 1-5, includes the following steps: S1: Start the condenser (1), open the first intake pipe (11), the liquid in the condenser (1) enters the storage oil tank through the first oil outlet pipe (13), and the gas condensed by the condenser (1) enters the activated carbon adsorption tank (2) through the first outlet pipe (12); S2: The gas after passing through the activated carbon adsorption tank (2) is discharged into the atmosphere; S3: Open the valve on the second intake pipe (32), close the second exhaust pipe (31) on the activated carbon adsorption tank (2), start the spray assembly (5), use the cleaning device to desorb the oil and gas adsorbed on the activated carbon, and the desorbed oil and gas enter the absorption tower (3) through the second intake pipe (32); S4: The spray assembly (5) makes droplets relatively evenly in the absorption tower (3). The droplets increase the contact area with the oil and gas. The oil and gas ejected from the bottom of the absorption tower (3) has a certain momentum, which collides with the droplets and is fully mixed. The droplets better absorb the organic matter in the oil and gas; S5: The liquid absorbing the oil and gas enters the temporary storage tank (4). A part of the liquid in the temporary storage tank (4) flows back to the storage oil tank, and the other part of the liquid flows back to the spray assembly (5); S6: Cycle according to the above operation steps.

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