Three-time oil gas recovery treatment system

Abstract

The invention relates to the technical field of oil gas treatment equipment, in particular to a tertiary oil gas recovery treatment system. Comprising a treatment cabinet, the separation system comprises a C-shaped adsorption pipe and a circulating pipe; the adsorption pipe is communicated with two ends of the circulating pipe; a deformable mesh cage is jointly embedded in the adsorption pipe and the circulating pipe, the mesh cage is filled with an oil gas adsorption material, and a plurality of rubber partition plates are embedded in the mesh cage at intervals; a purification device; and a circulation assembly. And by moving the mesh cage, the mesh cage circularly moves in a pipeline through which the adsorption pipe and the circulating pipe are communicated. By driving the mesh cage to move, replacement of silica gel adsorption particles can be achieved, the processes of oil gas adsorption, oil gas liquefaction and the like are separated and carried out independently, all the processes do not interfere with one another and can be carried out synchronously, and the whole process is smoother; and when the oil gas is adsorbed and liquefied, the whole machine does not need to be stopped, and only the moving time of different sections of the mesh cage is needed, so that the downtime is shortened, and the oil gas recovery efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas processing equipment, and in particular to a tertiary oil and gas recovery processing system. Background Art

[0002] Gasoline and gas recovery at gas stations refers to the collection of volatile gasoline and gas during the process of loading and unloading gasoline and refueling vehicles, and the use of one or both of the following methods, such as absorption, adsorption or condensation, to reduce the pollution of the gas or to convert the gas from gas to liquid and then back into gasoline, so as to achieve the purpose of recycling.

[0003] As the amount of gasoline injected into the oil tank increases, and as gas enters the oil tank during the refueling process to form a mixed oil and gas, the pressure in the tank will continue to rise. When the pressure of the gasoline tank rises to a certain value, the tertiary oil and gas recovery equipment starts to extract gasoline and oil gas from the gasoline tank at a certain flow rate, and converts it into liquid and returns it to the tank to reduce the pressure in the tank. The tertiary oil and gas recovery refers to the treatment of the oil and gas exhaled in the oil tank during the storage of oil products.

[0004] Since the recovery rate of the absorption method is lower than the national standard, and the absorbent consumption is large and needs to be constantly replenished, the membrane separation method requires a pressure-stabilizing gas, which has high requirements for equipment. Therefore, the common tertiary oil and gas recovery mostly adopts the adsorption method and the condensation method or a combination of the two. The common adsorption method is mostly to fill the chamber with oil and gas adsorption particles, such as activated carbon, silica gel or activated fiber, and separate the oil and gas from the air by the adsorption force of the oil and gas adsorption particles on the oil and gas / air mixture. After the oil and gas are adsorbed, the oil and gas are liquefied by pressurization, and the liquefied gasoline is then collected in the oil storage tank, thereby realizing the recovery of oil and gas. However, this method has an adsorption upper limit during operation: that is, the number of adsorption particles filled in the chamber is certain, and the amount of oil and gas that can be adsorbed is stable within a certain range. When in use, it can only be stopped before exceeding the adsorption upper limit and pressurized. The next use can only be continued after the oil and gas are liquefied and recovered in the chamber. The time consumption is relatively long, and it is not possible to continuously handle sudden situations such as the sudden increase in oil and gas pressure in the oil storage tank. The condensation method is prone to pipeline freezing and blockage.

[0005] To this end, the present invention provides a tertiary oil and gas recovery and processing system to shorten the downtime of oil and gas adsorption recovery so as to perform continuous processing of oil and gas. Summary of the invention

[0006] The purpose of the present invention is to solve the problems existing in the prior art and to propose a tertiary oil and gas recovery and processing system.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A tertiary oil and gas recovery and processing system includes a processing cabinet, wherein the processing cabinet is provided with: Cooling system, used to cool the pumped oil and gas and remove water vapor; The separation system includes a C-shaped adsorption tube and a circulation tube; the adsorption tube and the circulation tube are connected at both ends; a deformable mesh cage is embedded in the adsorption tube and the circulation tube, the mesh cage is filled with oil and gas adsorption materials, a plurality of rubber partitions are embedded in the mesh cage, a plurality of metal rings are embedded in the mesh cage, and a magnetic attraction piece matching the metal ring is slidably installed on the outer wall of the adsorption tube and the circulation tube; the circulation tube is divided into a pressurizing chamber, a washing chamber, and a drying chamber; The purification equipment is connected to the air outlet of the adsorption tube and the hot air output pipe and is used for purifying the exhaust gas; The circulation component cooperates with the oil-gas separation system to pressurize the oil and gas in the pipe, and cooperates with the oil-gas cooling system to cool the oil and gas evenly.

[0008] Preferably, the mesh cage includes a series line and cage bodies spaced apart on the series line, and the cage bodies are deformable.

[0009] Preferably, the cooling system comprises a cooling tube having the same structure as the adsorption tube, the inlet of the cooling tube is connected to the suction system, the outlet is connected to the inlet of the adsorption tube, and a condensing tube is wound around the outside of the cooling tube at intervals.

[0010] Preferably, the circulation component includes a first circulation component and a second circulation component that cooperate with the oil-gas separation system: The first circulation component includes a plurality of pressure cylinders arranged on the inner ring of the adsorption tube, each of which is embedded with a piston, and each piston end surface is fixed with a pressure handle extending out of the pressure cylinder and axially slidingly cooperating with the pressure cylinder, and a spring is arranged between the pressure handle and the pressure cylinder; The second circulation component includes a plurality of diffusion cylinders arranged on the inner ring of the cooling tube, a partition plate is arranged inside the diffusion cylinder, the partition plate cuts off the cooling tube and divides the diffusion cylinder into an inlet chamber and an outlet chamber which are connected at the ends, a pressure handle 2 is axially slidably matched at the end of the diffusion cylinder, a spring 2 is arranged between the pressure handle 2 and the diffusion cylinder, a three-claw is arranged at one end of the pressure handle 2 extending into the outlet chamber, a piston 2 is axially slidably mounted on the three-claw along the outlet chamber, a sealing plate is arranged at the end of the three-claw, and an air port is arranged on the sealing plate; A rotating shaft is rotatably installed in the adsorption tube in the processing cabinet, and cams matched with the first pressing handle and the second pressing handle are arranged at intervals on the rotating shaft.

[0011] Preferably, rollers are rotatably mounted on the ends of the first pressing handle and the second pressing handle.

[0012] Preferably, the side wall of the pressurized chamber is connected to a vacuum pump via a pressurized pipe, and the side wall of the pressurized chamber is connected to an oil storage chamber via an oil outlet pipe; the two ends of the washing chamber are respectively connected to a cleaning pipe and a sewage pipe, and the cleaning pipe is connected to a pressurized cleaning liquid injection device; the two ends of the drying chamber are respectively provided with a hot air input pipe and a hot air output pipe, and the hot air input pipe is connected to a hot air supply system.

[0013] Preferably, a C-shaped buckle plate is slidably installed on the outer edge surface of the adsorption tube and the circulation tube, and the magnetic attraction part is embedded in the buckle plate. A driving wheel is symmetrically installed on the buckle plate and rests on the tube wall. The driving wheel is connected to the output shaft of a motor fixed on the buckle plate through a chain drive.

[0014] Preferably, the pressurizing pipe, oil outlet pipe, cleaning pipe, sewage pipe, hot air input pipe, hot air output pipe and the pressurizing cylinder are located on the same outer edge surface of the same continuous side wall surface and have smaller diameters than the adsorption tube.

[0015] Preferably, the processing cabinet is provided with a plurality of inner ring frames and a plurality of outer ring frames, the pressurizing cylinder and the diffusion cylinder are mounted on the inner ring frames, and the pressurizing pipe, the cleaning pipe, the sewage pipe, the hot air input pipe and the hot air output pipe are mounted on the outer ring frames.

[0016] Preferably, the separation system is provided with a plurality of groups at vertical intervals.

[0017] Compared with the prior art, the present invention provides a tertiary oil and gas recovery and processing system, which has the following beneficial effects: 1. Move the mesh cage so that it can circulate in the pipes where the adsorption tube and the circulation tube are connected. Every time the mesh cage moves one end, it will drive the unused silica gel adsorption particles into the adsorption tube to adsorb gasoline. That is, by driving the mesh cage to move, the replacement of silica gel adsorption particles can be achieved, and the oil and gas adsorption, oil and gas liquefaction and other processes can be separated and carried out separately. All processes do not interfere with each other but can be carried out synchronously, and the whole process is smoother; when adsorbing oil and gas for liquefaction treatment, it is no longer necessary to stop the whole machine, and only the movement time of the mesh cage in different sections is required to improve the oil and gas recovery efficiency.

[0018] 2. Before adsorption, condensation and cooling treatment should be carried out to separate the water vapor in advance, so as to avoid the need for separation operation again when the gasoline pressure is adjusted and liquefied, as the water vapor is liquefied along with the oil and gas.

[0019] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0021] Figure 2 It is a cross-sectional schematic diagram of the present invention.

[0022] Figure 3 For the present invention Figure 1 Schematic diagram after removing the processing cabinet.

[0023] Figure 4 It is a top perspective schematic diagram of the separation system of the present invention.

[0024] Figure 5 It is a schematic front view of the separation system of the present invention.

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the cross section at AA.

[0026] Figure 7 For the present invention Figure 5 Schematic diagram of the cross section at BB.

[0027] Figure 8 For the present invention Figure 6 Partial schematic diagram at point C.

[0028] Fig. 9 For the present invention Figure 7 Local schematic diagram at point D.

[0029] Fig.10 It is a schematic diagram of the internal structure of the diffusion tube of the present invention.

[0030] Fig.11 It is a schematic diagram of the coherent mesh cage structure of the present invention.

[0031] Fig.12 It is a schematic diagram of the second driving structure of the net cage of the present invention.

[0032] Fig.13 It is a schematic diagram of the driving structure of the net cage of the present invention.

[0033] Fig.14 It is a schematic diagram of the three-claw, sealing plate and piston two-connection structure of the present invention.

[0034] Fig.15 It is a schematic diagram of the cage structure of the present invention.

[0035] In the figure: 1, processing cabinet; 2, control cabinet; 3, cooling pipe; 4, adsorption pipe; 5, circulation pipe; 501, pressurizing chamber; 502, pressurizing pipe; 503, oil outlet pipe; 504, washing chamber; 505, cleaning pipe; 506, sewage pipe; 507, drying chamber; 508, hot air input pipe; 509, hot air output pipe; 6, elbow; 7, mesh cage; 701, cage body; 702, series connection; 7011, rubber frame; 7012, rubber ring; 8, rotating shaft; 9, cam ; 10. Cam 2; 11. Pressing handle 1; 12. Piston 1; 13. Pressing handle 2; 14. Three claws; 15. Piston 2; 16. Air port; 17. Pressurizing cylinder; 18. Diffuser cylinder; 1801. Suction chamber; 1802. Output chamber; 1803. Partition plate; 19. Roller; 20. Suction pump; 21. Purification system; 22. Driving structure; 2201 Buckle plate; 2202. Driving wheel; 2203. Slide groove; 23. Inner ring frame; 24. Sealing plate; 25. Rubber partition. DETAILED DESCRIPTION

[0036] The following will be combined with the attached embodiment of the present invention Figure 1-15 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Embodiment 1, in order to solve the problems existing in the prior art, this embodiment provides a tertiary oil and gas recovery and processing system, including a processing cabinet 1, wherein the processing cabinet 1 is provided with: Cooling system, used to cool the pumped oil and gas and remove water vapor; The separation system comprises a C-shaped adsorption tube 4 and a circulation tube 5; the adsorption tube 4 and the circulation tube 5 are connected at both ends; a deformable mesh cage 7 is embedded in the adsorption tube 4 and the circulation tube 5, the mesh cage 7 is filled with oil and gas adsorption material, a rubber partition 25 is embedded in the mesh cage 7, a metal ring is embedded in the mesh cage 7, and a magnetic attraction piece matching the metal ring is slidably installed on the outer wall of the adsorption tube 4 and the circulation tube 5; the circulation tube 5 is divided into a pressurizing chamber 501, a washing chamber 504, and a drying chamber 507; Purification equipment, connected to the air outlet of the adsorption tube 4 and the hot air output pipe 509, for purifying the exhaust gas; The circulation component cooperates with the oil-gas separation system to pressurize the oil and gas in the pipe, and cooperates with the oil-gas cooling system to cool the oil and gas evenly.

[0038] Principle details of this embodiment: A tertiary oil and gas recovery and processing system includes a processing cabinet 1. The processing cabinet 1 is provided with an openable cabinet door around it, which is convenient for adjusting and repairing the equipment inside the processing cabinet 1. The side wall of the processing cabinet 1 is provided with a visual window to observe the internal environment of the processing cabinet 1. The bottom of the processing cabinet 1 is provided with a steel structure cushion frame to play a role in stable support and shock absorption.

[0039] The processing cabinet 1 is provided with: 1. The pumping system is connected to the underground oil storage tank of the gas station. When the pressure in the oil storage tank reaches a certain level, the oil and gas in the oil storage tank are discharged. The pumping system includes a suction pump 20, and the suction port of the suction pump 20 is connected to the exhaust pipe of the oil storage tank to achieve gasoline discharge. The exhaust pipe is provided with an air pressure valve. When the oil pressure in the oil storage tank reaches the set peak value, the air pressure valve opens, and the suction pump 20 starts to suck the oil and gas / air mixture in the oil storage tank.

[0040] 2. The cooling system is used to cool the drawn oil and gas and remove the water vapor in the mixed gas. The air outlet 16 of the suction pump 20 is connected to the air inlet 16 of the cooling system to realize the delivery of oil and gas to the cooling system.

[0041] 3. The separation system includes a C-shaped adsorption tube 4 and a circulation tube 5. The adsorption tube 4 and the circulation tube 5 are both made of non-magnetic isolation materials, such as resin materials among non-magnetic conductive materials. The outer circumference of the circulation tube 5 is not less than three times the outer circumference of the adsorption tube 4, and the adsorption tube 4 and the circulation tube 5 have the same caliber. The adsorption tube 4 and the circulation tube 5 are connected at both ends through an elbow 6, and the caliber of the elbow 6 is consistent with the caliber of the adsorption tube 4 and the circulation tube 5. The two ends of the adsorption tube 4 are respectively provided with an air inlet pipe and an air outlet pipe. The calibers of the air inlet pipe and the air outlet pipe are smaller than the caliber of the adsorption tube 4. The air inlet pipe is connected to the air outlet 16 of the cooling system to receive the cooled oil and gas.

[0042] A deformable mesh cage 7 is embedded in both the adsorption tube 4 and the circulation tube 5. The mesh cage 7 is made of flexible material and has the ability to deform with the pipeline. For example, the interior is a hard rubber frame 7011 and the exterior is covered with a rubber ring 7012. The outer rubber ring 7012 forms a piston-like sealing effect with the inner wall of the pipeline. In this way, the mesh cage 7 can be deformed along with the shape of the adsorption tube 4, the circulation tube 5, and the elbow 6 during movement, and there will be no gap between the outer wall of the mesh cage 7 and the inner wall of the adsorption tube 4 and the circulation tube 5. The rubber frame 7011 is evenly distributed with a number of mesh holes, so that oil and gas can flow in the mesh cage 7; and the rubber ring 7012 is provided with air holes, so that the oil and gas in the intake pipe can be injected into the mesh cage 7.

[0043] The mesh cage 7 is filled with oil and gas adsorption materials, such as silica gel. In this solution, activated carbon is not selected because heat is released during the oil and gas adsorption process, and there is a risk of combustion when activated carbon absorbs heat. In addition, the pore size of activated carbon is small and it is easy to be blocked, resulting in a decrease in adsorption performance. Silica gel is selected to have a rich micropore distribution. The rich micropore distribution can have better adsorption capacity; and the pore volume of the micropores is relatively large. A large pore volume will make it easier to adsorb oil and gas molecules, and the corresponding adsorption amount will be larger; and silica gel is non-flammable, reducing the risk of use. The pore size of the pores on the rubber ring 7012 and the mesh on the rubber frame 7011 are smaller than the diameter of the silica gel particles to prevent the silica gel particles from detaching.

[0044] A plurality of rubber diaphragms 25 are embedded in the mesh cage 7 at intervals. The structure of the rubber diaphragms 25 is similar to that of a piston. The distance between two adjacent rubber diaphragms 25 is greater than the circumference of the adsorption tube 4. Figure 6 As shown, when the mesh cage 7 is stationary in the adsorption tube 4 and the circulation tube 5, the two rubber partitions 25 are respectively located in the elbows 6 on both sides, outside the air inlet pipe and the air outlet pipe of the adsorption tube 4, thereby isolating the adsorption tube 4 from the circulation tube 5, and the oil and gas can only flow in the adsorption tube 4 to prevent the oil and gas from leaking into the circulation tube 5.

[0045] Several metal rings are embedded in the mesh cage 7. The metal rings can be distributed between the hard rubber frame 7011 and the rubber ring 7012 of the mesh cage 7, and in the rubber partition 25. At the same time, the width of the metal ring does not exceed 3CM, so as to prevent the existence of the metal ring from affecting the deformation ability of the mesh cage 7. The outer wall of the adsorption tube 4 and the circulation tube 5 is slidably installed with a magnetic suction piece matching the metal ring. The magnetic suction piece can be selected from an electromagnet or a magnet. When the electromagnet is selected, a mobile power supply such as a battery box, a storage battery, etc. The magnetic suction piece is arc-shaped and fits on the outer wall of the tube. The magnetic suction piece absorbs the metal ring, drives the magnetic suction piece to move, and can drive the metal ring to move. If there are multiple metal rings, then there are multiple magnetic suction pieces, and the driving structure 22 of the magnetic suction piece is provided with multiple sets, thereby providing multiple sets of driving force to the mesh cage 7 to ensure that the mesh cage 7 that fits the inner wall of the tube can move in the tube.

[0046] The circulation pipe 5 is divided into a pressurizing chamber 501, a washing chamber 504, and a drying chamber 507 in order from the air inlet 16 of the adsorption tube 4 to the exhaust port 16. The lengths of the pressurizing chamber 501, the washing chamber 504, and the drying chamber 507 are all greater than the perimeter of the outer edge of the adsorption tube 4 to ensure that the mesh cage 7 sections retained in the adsorption tube 4 can be completely filled in the chamber under the isolation effect of the rubber partition 25 after moving. For example, the mesh cage 7 sections in the adsorption tube 4 can be completely present in the pressurizing chamber 501. The pressurizing chamber 501 is used for pressurized liquefaction of oil and gas, the washing chamber 504 is used for cleaning of adsorption materials, namely silica gel, and the drying chamber 507 is used for air drying of the adsorption materials after washing.

[0047] 4. The purification device is connected to the outlet of the adsorption tube 4 and the hot air output pipe 509, and is used to purify the residual substances in the exhaust gas. The purification device is equipped with a HEPA filter and an activated carbon filter element, which can filter the gasoline smell in the exhaust gas.

[0048] 5. The circulation component is divided into two parts: the part cooperating with the oil-gas separation system is used to pressurize the oil and gas in the pipe, and the part cooperating with the oil-gas cooling system is used to evenly cool the oil and gas.

[0049] 6. The control cabinet 2, through the PLC control system, centrally controls the operating status of each device, such as the opening and closing of the suction pump 20 and the opening and closing of the electric valve.

[0050] According to the above technical solution (the rubber partition 25 divides the mesh cage 7 into a plurality of isolation sections. For ease of understanding, in this embodiment, the isolation sections are numbered, the isolation section initially located in the adsorption tube 4 is the first section, the subsequent adjacent section is the second section, and the first section of the mesh cage 7 and the second section of the mesh cage 7 share a rubber partition 25 on the opposite side. The second section and the third section, and so on, are analogized): In the initial state, the first section of the mesh cage 7 is located in the adsorption tube 4 , the second section of the mesh cage 7 is located in the drying chamber 507 , the third section of the mesh cage 7 is located in the washing chamber 504 , and the fourth section of the mesh cage 7 is located in the pressurizing chamber 501 .

[0051] When the oil and gas pressure in the oil storage tank reaches the set peak value, the air pressure valve is opened, and the suction pump 20 is started to inject the oil and gas in the oil storage tank into the cooling system. The oil and gas are cooled, so that the water vapor in the oil and gas mixture is condensed and separated, and the initial purification of the oil and gas is achieved.

[0052] The oil and gas after the cooling treatment are injected into the adsorption tube 4 from the air inlet pipe, and flow in an arc shape along the adsorption tube 4, that is, the oil and gas flow in the first section of the mesh cage 7. During the flow of the oil and gas, the adsorption force of the silica gel on the oil and gas molecules is greater than the adsorption force on the air molecules, so the oil and gas are adsorbed to achieve the separation of the oil and gas molecules from the air. The oil and gas molecules are adsorbed, and the air molecules continue to flow, and finally discharged from the outlet pipe of the adsorption tube 4 into the purification system 21, and discharged into the air after air purification.

[0053] After running for a certain period of time, the suction pump 20 is turned off and the driving structure 22 of the magnetic element is started. Multiple driving structures 22 drive the mesh cage 7 to move into the pressurized chamber 501 through the pipe wall through the cooperation of multiple groups of magnetic elements and metal rings. Until the first section of the mesh cage 7 is completely transferred to the pressurized chamber 501, and the second section of the mesh cage 7 is moved into the adsorption tube 4. At this time, the rubber partitions 25 at both ends of the first section of the mesh cage 7 are respectively located at the adjacent part of the pressurized chamber 501 and the washing chamber 504 and in the elbow 6 at the exhaust pipe, thereby isolating the pressurized chamber 501 separately; the rubber partition 25 shared by the second section of the mesh cage 7 and the first section of the mesh cage 7 is located in the elbow 6 at the exhaust pipe, and another rubber partition 25 of the second section of the mesh cage 7 is transferred to the elbow 6 at the intake pipe, so that the rubber partitions 25 are present at both elbows 6, thereby isolating the adsorption tube 4 from the circulation pipe 5, and isolating the second section of the mesh cage 7 in the adsorption tube 4. At this time, the silica gel in the second section of the mesh cage 7 in the adsorption tube 4 has not been used yet, and the suction pump 20 can be turned on again to inject oil and gas again to continue the adsorption work.

[0054] Entering the first section of the mesh cage 7 in the pressurized chamber 501, the oil and gas are subjected to pressure and begin to condense and liquefy under the action of vacuum and air pressure. The liquefied gasoline is re-injected into the oil storage tank and can be used again. The concentration of the unliquefied oil and gas will also increase, becoming concentrated oil and gas, which can also be re-injected into the oil storage tank along with the liquefied gasoline.

[0055] When the silica gel in the second section of the mesh cage 7 absorbs oil and gas to a certain extent, the suction pump 20 is turned off again. The driving structure 22 is started again, driving the first section of the mesh cage 7 to enter the washing chamber 504, the second section of the mesh cage 7 to enter the pressurizing chamber 501, and the third section of the mesh cage 7 to enter the adsorption tube 4. The suction pump 20 is started again, and the third section of the mesh cage 7 can absorb oil and gas again; the second section of the mesh cage 7 performs oil and gas liquefaction treatment in the pressurizing chamber 501; the first section of the mesh cage 7 is washed in the washing chamber 504.

[0056] When the silica gel in the fourth section of the mesh cage 7 absorbs oil and gas to a certain extent, the suction pump 20 is turned off. The driving structure 22 is started, driving the first section of the mesh cage 7 to enter the drying chamber 507, the second section of the mesh cage 7 to enter the washing chamber 504, the third section of the mesh cage 7 to enter the pressurizing chamber 501, and the fourth section of the mesh cage 7 to enter the adsorption tube 4. The suction pump 20 is started, the fourth section of the mesh cage 7 absorbs oil and gas; the third section of the mesh cage 7 performs oil and gas liquefaction treatment in the pressurizing chamber 501; the second section of the mesh cage 7 performs washing in the washing chamber 504; the first section of the mesh cage 7 performs air drying treatment in the drying chamber.

[0057] Thus, when the net cage 7 moves next time, a cycle is completed. By moving the net cage 7, the silica gel adsorption particles are replaced, and the oil and gas adsorption, oil and gas liquefaction and other processes are separated and carried out separately. All processes do not interfere with each other and can be carried out synchronously, making the whole process smoother; when the oil and gas are adsorbed and liquefied, it is no longer necessary to stop the whole machine, and only the net cage 7 needs to be moved at different times, which shortens the downtime and improves the oil and gas recovery efficiency.

[0058] Embodiment 2, in a further embodiment of the present scheme, in order to further prevent the mesh cage 7 from deforming and having gaps when it moves at a bend such as an elbow 6, in this embodiment, the structure of the mesh cage 7 is further limited: the mesh cage 7 includes a series wire 702 and a cage body 701 spaced apart on the series wire 702, and the cage body 701 is deformable. The series wire 702 is a steel strand. The cage body 701 is a combination of the rubber frame 7011 and the rubber ring 7012 described in Embodiment 1. That is, in this embodiment, the mesh cage 7 is divided into individual individuals, but the end faces of the individual individuals are evenly distributed with air holes, so that oil and gas can still flow. The multiple rubber partitions 25 are still on the end faces of the cage body 701 set at intervals, that is, the cage bodies 701 are still separated by the rubber partitions 25, and the multiple cage bodies 701 are still divided into the four sections in Embodiment 1.

[0059] Embodiment 3, a further embodiment of the present scheme, in this embodiment, a specific cooling system structure is provided: the cooling system includes a cooling tube 3 having the same structure as the adsorption tube 4, the inlet of the cooling tube 3 is connected to the suction system, and the outlet is connected to the inlet of the adsorption tube 4, and a condenser is wound around the outside of the cooling tube 3. The condenser is connected to a refrigerator, such as the Fujihao S15-56Y refrigeration unit, which is small in size and has a good cooling effect. The condenser is wrapped and attached to the cooling tube 3 by thermal insulation material to prevent the emission of cold air. The oil and gas are cooled by heat exchange treatment between the condenser and the cooling tube 3. The cooling temperature is 0±3°C, which can satisfy the condensation and liquefaction of water vapor, and will not cause the temperature to be too low to cause the oil and gas to liquefy along with the water vapor.

[0060] In this embodiment, a drain pipe is also provided on the side wall of the cooling pipe 3, and an electric valve is provided on the drain pipe. When the suction pump 20 is started, the electric valve is closed, and the condensed water vapor is temporarily stored in the cooling pipe 3. When the suction pump 20 is turned off, the oil and gas transportation is stopped, and the electric valve is opened, and the condensed water vapor is discharged from the drain pipe.

[0061] Embodiment 4, in a further embodiment of the present invention, a specific circulation component structure is provided: the circulation component comprises a first circulation component and a second circulation component which cooperate with the oil-gas separation system: See attached Figure 6 and attached Figure 8As shown, the first circulation component includes a plurality of pressurizing cylinders 17 arranged on the inner ring of the adsorption tube 4, and the plurality of pressurizing cylinders 17 are evenly spaced and leak out of the C-shaped structural gap of the adsorption tube 4. A piston 12 is embedded in each pressurizing cylinder 17, and a pressure handle 11 is fixed to the end surface of the piston. The pressure handle 11 is axially slidably matched with the pressurizing cylinder 17, and the handle end of the pressure handle 11 extends out of the pressurizing cylinder 17. A spring 1 is arranged between the handle end of the pressurizing cylinder 17 and the pressurizing cylinder 17.

[0062] The second circulation component includes a plurality of diffusion tubes 18 arranged on the inner circle of the cooling tube 3. The plurality of diffusion tubes 18 are evenly spaced on the cooling tube 3, and the gap of the C-shaped structure is also leaked. A partition plate 1803 is arranged inside the diffusion tube 18. One end of the partition plate 1803 extends into the cooling tube 3 to cut off the cooling tube 3; the other end of the partition plate 1803 is close to the end of the diffusion tube 18 but a gap is left. Thus, the diffusion tube 18 is divided into an inlet chamber 1801 and an output chamber 1802, which are connected at the ends. A pressure handle 2 13 is axially slidably matched at the end of the diffusion tube 18. A spring 2 is arranged between the handle end of the pressure handle 2 13 extending out of the diffusion tube 18 and the diffusion tube 18. A connecting frame with a three-claw 14 structure is arranged at one end of the pressure handle 2 13 extending into the output chamber 1802. A piston 2 15 is axially slidably installed along the upper edge of the three-claw 14 in the output chamber 1802. The piston 2 15 is provided with three through holes for the three claws of the three claws 14 to be inserted, so as to realize the axial sliding fit between the piston 2 15 and the output chamber 1802. A shaft seal is provided at the through hole of the piston 2 15, and the sealing ring of the inner ring of the shaft seal is closely attached to the claws of the three claws 14 to prevent air leakage. A sealing plate 24 is provided at the end of the three claws 14, and an air port 16 is provided on the sealing plate 24.

[0063] A rotating shaft 8 is rotatably installed in the adsorption tube 4 in the processing cabinet 1, and a cam 1 9 and a cam 2 10 are arranged on the rotating shaft 8 at intervals and cooperate with a pressing handle 1 11 and a pressing handle 2 13 respectively.

[0064] According to the above technical solution: When in use, the rotating shaft 8 drives the cam 1 9 and the cam 2 10 to rotate synchronously.

[0065] The cam 9 rotates and intermittently presses the pressure handle 11, and under the coordinated action of the spring 1, the pressure handle 11 drives the piston 12 to move back and forth in the pressure cylinder 17. The piston 12 moves toward the end of the pressure cylinder 17, thereby sucking the oil and gas in the adsorption tube 4 into the pressure cylinder 17; the piston 12 moves deep into the pressure cylinder 17, thereby pushing the oil and gas sucked into the pressure cylinder 17 into the adsorption tube 4 again, thereby accelerating this part of the oil and gas, and so on and so forth, thereby accelerating the oil and gas flowing in the adsorption tube 4, thereby achieving a pressurization effect, so as to promote the flow of oil and gas, and reduce the influence of the silica gel adsorption particles on the front side of the mesh cage 7 on the flow of oil and gas after the oil and gas molecules are fully adsorbed.

[0066] The cam 2 10 rotates and intermittently presses the pressure handle 2 13. Under the coordinated action of the spring 2, the pressure handle 2 13 drives the piston 2 15 to move back and forth in the output chamber 1802. The oil and gas flow in the cooling tube 3, and when it reaches the diffusion tube 18, it flows along the suction chamber 1801 and the output chamber 1802. When the pressure handle 2 13 moves toward the end of the output chamber 1802, the piston 2 15 separates from the sealing plate 24 under the oil and gas pressure in the suction chamber 1801, and the oil and gas flow into the output chamber 1802; when the pressure handle 2 13 moves deep into the output chamber 1802, the piston 2 15 moves along the three claws 14 and sticks to the sealing plate 24, closing the air port 16 on the sealing plate 24. The oil and gas no longer cross the output chamber 1802 and enter the cooling tube 3 on the other side of the diffusion tube 18, and the oil and gas flowing into the output chamber 1802 is accelerated by the push of the piston 2 15. The setting of the second circulation component allows the oil and gas to form an S-shaped flow channel at multiple positions in the cooling tube 3, and form a pressurized acceleration effect at the bend of the channel. The oil and gas pass through the S-shaped channel and are pressurized and impact with the piston 15, causing the oil and gas to collapse. That is, the oil and gas originally flowing on the inside may diffuse to the outside under the impact, so that the water vapor mixed in the oil and gas is in full contact with the condenser tube wrapped outside the cooling tube 3, thereby improving the condensation and separation effect of the water vapor.

[0067] In this embodiment, the ends of the pressing handle 11 and the pressing handle 2 13 are both rotatably mounted with rollers 19. The rollers 19 are pressed against the side walls of the cam 1 9 and the cam 2 10, and the original contact friction is changed to rolling, which can reduce component wear and increase the service life of the circulation component.

[0068] In this embodiment, a spring three is provided between the piston two 15 and the three claws 14. The spring three makes the piston two 15 always tend to the sealing plate 24 to block the air port 16, so that the air port 16 is closed when the pressure handle two 13 moves outward from the output chamber 1802 and is opened when it moves inward from the output chamber 1802. Under the action of the spring three, when the pressure handle two 13 moves inward from the output chamber 1802, the air port 16 will not be opened under the low pressure of the oil and gas pressure.

[0069] In this embodiment, the end caps of the pressure cylinder 17 and the diffusion cylinder 18 are flange structures, which are fixedly connected by fasteners so that components such as pistons can be inserted and installed. A sealing gasket is also provided between the cylinder body and the end cap of the pressure cylinder 17 and the diffusion cylinder 18, and the sealing gasket adopts a mortise and tenon plug-in type to improve the sealing performance.

[0070] Embodiment 5, in a further embodiment of the present scheme, the side wall of the pressurized chamber 501 is connected to a vacuum pumping device via a pressurized pipe 502, and the vacuum control treatment in the pressurized chamber 501 is implemented by the vacuum pumping device to realize the liquefaction treatment of oil and gas.

[0071] The side wall of the pressurizing chamber 501 is connected to an oil storage chamber via an oil outlet pipe 503 for temporarily storing liquefied gasoline; the oil storage chamber is connected to an oil storage tank via a pump for gasoline transportation; an electric valve is provided on the oil outlet pipe 503, which is opened only after the oil and gas liquefaction treatment in the pressurizing chamber 501 is completed to prevent oil and gas from flowing into the oil outlet chamber.

[0072] The two ends of the washing chamber 504 are respectively connected with a cleaning pipe 505 and a sewage pipe 506, and the cleaning pipe 505 is connected with a cleaning liquid pressurized filling device. The cleaning liquid pressurized tank filling device is a combination of a tank body, a pump, and an electric valve, and a gasoline detergent, such as alcohol, is stored in the tank body. The pump is used to pressurize and inject the gasoline detergent. The two ends of the drying chamber 507 are respectively provided with a hot air input pipe 508 and a hot air output pipe 509, and the hot air input pipe 508 is connected with a hot air supply system, such as a combination of a blower and an electric heating wire, that is, a hot air blower. It is used for the volatilization of alcohol to ensure that the surface of the silica gel is dry.

[0073] Embodiment 6, in the further implementation of this scheme, a specific cage 7 driving structure 22 is provided: two groups of slide grooves 2203 are provided on the outer edge surface of the adsorption tube 4 and the circulation tube 5, and a buckle plate 2201 is embedded in the two slide grooves 2203. The buckle plate 2201 is C-shaped and attached to the side walls of the adsorption tube 4 and the circulation tube 5. The magnetic suction piece is embedded in the inner wall of the buckle plate 2201 and there is a gap between it and the tube wall of the adsorption tube 4 and the circulation tube 5, and one side of the magnetic suction piece is worn. A T-shaped bracket is provided on the buckle plate 2201 along the tangent direction of the tube wall, and the two cantilevers of the bracket are rotatably mounted with drive wheels 2202, which are symmetrically arranged and against the tube wall. A motor 1 is fixed on the upper end of the bracket, and sprockets are fixed on the output shaft of the motor 1 and the rotating shafts of the two drive wheels 2202. A chain is sleeved on the three sprockets to form a chain transmission structure, and the two drive wheels 2202 can be driven to rotate synchronously and in the same direction by the motor 1.

[0074] According to the above technical solution: The motor 1 drives the driving wheel 2202 to rotate through the chain transmission, and the driving wheel 2202 rolls on the tube walls of the adsorption tube 4 and the circulation tube 5 to drive the magnetic attraction part to move, and the magnetic attraction part attracts the metal ring to drive the mesh cage 7 to move.

[0075] In this embodiment, a friction sleeve is provided on the outer edge surface of the driving wheel 2202 to increase the contact friction between the driving wheel 2202 and the pipe wall, thereby improving the moving tendency.

[0076] Embodiment 7, in a further embodiment of this scheme, the pressurized pipe 502, the oil outlet pipe 503, the cleaning pipe 505, the drain pipe 506, the hot air input pipe 508, the hot air output pipe 509 and the pressurized cylinder 17 are located on the same outer edge surface of the same continuous side wall surface and have a smaller diameter than the adsorption tube 4. The distribution of the pressurized pipe 502, the oil outlet pipe 503, the cleaning pipe 505, the drain pipe 506, the hot air input pipe 508, the hot air output pipe 509 and the pressurized cylinder 17 is as shown in the attached Figure 6 As shown, the pressurized pipe 502, the oil outlet pipe 503, the cleaning pipe 505, the sewage pipe 506, the hot air input pipe 508, and the hot air output pipe 509 are located on the outer wall of the circulation pipe 5, and the pressurized cylinder 17 is located on the inner wall of the adsorption pipe 4. Since the adsorption pipe 4 is connected to the circulation pipe 5, the pressurized pipe 502, the oil outlet pipe 503, the cleaning pipe 505, the sewage pipe 506, the hot air input pipe 508, the hot air output pipe 509, and the pressurized cylinder 17 are all on the same side of the continuous side wall. The buckle plate 2201 is buckled on the inner wall, thereby avoiding collision and interference between the buckle plate 2201 and the pipeline when moving.

[0077] The diameters of the pressure pipe 502, the oil outlet pipe 503, the cleaning pipe 505, the sewage pipe 506, the hot air input pipe 508, the hot air output pipe 509 and the pressure cylinder 17 are all smaller than the diameter of the adsorption tube 4, so the sliding groove 2203 of the gusset plate 2201 can be set outward. When the counterclockwise angle between the two sliding grooves 2203 is less than or equal to 90°, the buckling angle of the gusset plate 2201 on the pipe wall is greater than 90°, the force is more dispersed, and the installation of the gusset plate 2201 is more reliable.

[0078] Embodiment 8, in a further embodiment of this scheme, the processing cabinet 1 is provided with a plurality of inner ring frames 23 and a plurality of outer ring frames, the pressurizing cylinder 17 and the diffusion cylinder 18 are mounted on the inner ring frame 23, and the pressurizing pipe 502, the cleaning pipe 505, the sewage pipe 506, the hot air input pipe 508, and the hot air output pipe 509 are mounted on the outer ring frame. The cooling pipe 3, the adsorption pipe 4, and the circulation pipe 5 are suspended and installed. The upper ends of the plurality of inner ring frames 23 are connected to a suspension, and a motor 2 for driving the rotating shaft 8 is fixed on the suspension.

[0079] Embodiment 9, in a further embodiment of the present invention, the separation system is provided with multiple groups at intervals vertically. The inlet and outlet of the adsorption tubes 4 in two vertically adjacent groups of separation systems are connected. The exhaust pipe of the adsorption tube 4 on the top layer is connected to the purification system 21. The oil and gas can be subjected to multiple adsorption treatments, thereby improving the oil and gas separation rate and making the oil and gas completely separated as much as possible.

[0080] In this embodiment, all the same type of pipes in the pressurized pipes 502, the oil outlet pipes 503, the cleaning pipes, the sewage pipes 506, the hot air input pipes 508, and the hot air output pipes 509 can be connected to the same pipe, so that one device can be shared. For example, all the pressurized pipes 502 are connected to a pipeline that is connected to a vacuum pumping device, and one device can be used to perform vacuum treatment on all the pressurized chambers 501.

[0081] In this solution, the air inlet pipe and exhaust pipe of the adsorption tube 4, the oil outlet pipe 503 of the pressurized chamber 501, the connecting pipeline between the oil storage chamber and the oil storage tank, the connecting pipeline between the outlet of the suction pump 20 and the air inlet pipe of the adsorption tube 4 and other pipelines are all provided with check valves to prevent the backflow of oil and gas or gasoline.

[0082] In this solution, the driving structure 22 of the net cage 7 can also be selected as a built-in device, see the attached Fig.12 As shown, the interval sleeve on the series line 702 has a built-in hub-type mounting frame. There are multiple mounting columns in a circular array on the outer edge of the mounting frame, and motor three is fixed on the mounting column. The output shaft of motor three passes through the slider and is fixed with a rotating wheel. The rotating wheel is a rubber wheel, which can be squeezed and deformed to be in close contact with the inner wall of the tube, and can also be adaptively deformed as the tube bends. In this way, the drive can be internally driven, and this connection is more secure than the contactless magnetic adsorption drive. The power source is a battery, and the charging method is magnetic induction wireless charging; or a replaceable long-life battery, and in this setting, an openable window is set on the outer wall on the same side of the adsorption tube, the circulation tube and the pressurized tube, and the window is in contact and sealed with the tube wall to avoid air leakage. The battery can be replaced through the window. The battery is embedded in the mounting frame.

[0083] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0085] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A tertiary oil and gas recovery and processing system, characterized in that: The invention comprises a processing cabinet (1), wherein the processing cabinet (1) is provided with: Cooling system, used to cool the pumped oil and gas and remove water vapor; The separation system comprises a C-shaped adsorption tube (4) and a circulation tube (5); the adsorption tube (4) and the circulation tube (5) are connected at both ends; a deformable mesh cage (7) is embedded in both the adsorption tube (4) and the circulation tube (5); the mesh cage (7) is filled with oil and gas adsorption material; a plurality of rubber partitions (25) are embedded in the mesh cage (7); a plurality of metal rings are embedded in the mesh cage (7); magnetic suction parts matching the metal rings are slidably mounted on the outer walls of the adsorption tube (4) and the circulation tube (5); the circulation tube (5) is divided into a pressurizing chamber (501), a washing chamber (504), and a drying chamber (507); A purification device connected to the air outlet of the adsorption tube (4) and the hot air output pipe (509) for purifying the exhaust gas; The circulation component cooperates with the oil-gas separation system to pressurize the oil and gas in the pipe, and cooperates with the oil-gas cooling system to cool the oil and gas evenly.

2. A tertiary oil and gas recovery and processing system according to claim 1, characterized in that: The mesh cage (7) comprises a series connection line (702) and cage bodies (701) spaced apart on the series connection line (702); the cage bodies (701) are deformable.

3. A tertiary oil and gas recovery and processing system according to claim 1, characterized in that: The cooling system comprises a cooling tube (3) having the same structure as the adsorption tube (4); the inlet of the cooling tube (3) is connected to the suction system, and the outlet is connected to the inlet of the adsorption tube (4); and a condensing tube is wound around the outside of the cooling tube (3).

4. A tertiary oil and gas recovery and processing system according to claim 3, characterized in that: The circulation assembly includes a first circulation assembly and a second circulation assembly that cooperate with the oil-gas separation system: The first circulation component comprises a plurality of pressurizing cylinders (17) arranged on the inner ring of the adsorption tube (4), each of which has a piston (12) embedded in it, and each of which has a pressure handle (11) fixed on its end surface, which extends out of the pressurizing cylinder (17) and axially slides with the pressurizing cylinder (17), and a spring (1) is provided between the pressure handle (11) and the pressurizing cylinder (17); The second circulation component comprises a plurality of diffusion tubes (18) arranged on the inner ring of the cooling tube (3), a partition plate (1803) being arranged inside the diffusion tube (18), the partition plate (1803) cutting off the cooling tube (3) and dividing the diffusion tube (18) into an inlet chamber (1801) and an outlet chamber (1802) communicating with each other at the ends, a second pressing handle (13) being axially slidably engaged at the end of the diffusion tube (18), a second spring being arranged between the second pressing handle (13) and the diffusion tube (18), a third claw (14) being arranged at one end of the second pressing handle (13) extending into the outlet chamber (1802), a second piston (15) being axially slidably mounted on the third claw (14) along the outlet chamber (1802), a sealing plate (24) being arranged at the end of the third claw (14), and an air port (16) being arranged on the sealing plate (24); A rotating shaft (8) is rotatably mounted in the adsorption tube (4) in the processing cabinet (1), and cams cooperating with a first pressing handle (11) and a second pressing handle (13) are arranged at intervals on the rotating shaft (8).

5. A tertiary oil and gas recovery and processing system according to claim 4, characterized in that: Rollers (19) are rotatably mounted on the ends of the first pressing handle (11) and the second pressing handle (13).

6. A tertiary oil and gas recovery and processing system according to claim 4, characterized in that: The side wall of the pressurizing chamber (501) is connected to a vacuum pump via a pressurizing pipe (502), and the side wall of the pressurizing chamber (501) is connected to an oil storage chamber via an oil outlet pipe (503); the two ends of the washing chamber (504) are respectively connected to a cleaning pipe (505) and a sewage pipe (506), and the cleaning pipe (505) is connected to a cleaning liquid pressurizing injection device; the two ends of the drying chamber (507) are respectively provided with a hot air input pipe (508) and a hot air output pipe (509), and the hot air input pipe (508) is connected to a hot air supply system.

7. A tertiary oil and gas recovery and processing system according to claim 6, characterized in that: A C-shaped buckle plate (2201) is slidably mounted on the outer edge surfaces of the adsorption tube (4) and the circulation tube (5), the magnetic attraction component is embedded in the buckle plate (2201), and a driving wheel (2202) is symmetrically mounted on the buckle plate (2201) to be rotatably supported against the tube wall, and the driving wheel (2202) is connected to an output shaft of a motor fixed to the buckle plate (2201) via a chain drive.

8. A tertiary oil and gas recovery and processing system according to claim 7, characterized in that: The pressurizing pipe (502), the oil outlet pipe (503), the cleaning pipe (505), the sewage discharge pipe (506), the hot air input pipe (508), the hot air output pipe (509) and the pressurizing cylinder (17) are located on the same outer edge surface of the same continuous side wall surface and have a smaller diameter than the adsorption tube (4).

9. A tertiary oil and gas recovery and processing system according to claim 4, characterized in that: The processing cabinet (1) is provided with a plurality of inner ring frames (23) and a plurality of outer ring frames, wherein the pressurizing cylinder (17) and the diffusion cylinder (18) are mounted on the inner ring frames (23), and the pressurizing pipe (502), the cleaning pipe (505), the sewage pipe (506), the hot air input pipe (508), and the hot air output pipe (509) are mounted on the outer ring frames.

10. The tertiary oil and gas recovery and processing system according to claim 1, characterized in that: The separation system is provided with a plurality of groups at vertical intervals.

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