Thickened oil carbon dioxide extraction device

By heating carbon dioxide in the carbon dioxide extraction device and using a blender to fully mix it with thick oil, it solves the inefficient problem caused by insufficient contact with the thick oil in the existing device, and achieves more efficient extraction effects.

CN119371986APending Publication Date: 2025-01-28SOUTHWEST PETROLEUM UNIV
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Patent Information

Application Number
CN202411510986.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-01-28

AI Technical Summary

Technical Problem

The existing heavy oil carbon dioxide extraction device has insufficient contact between carbon dioxide and heavy oil, resulting in slow progress in the extraction process and low overall extraction efficiency.

Method used

A thick oil dioxide extraction device is designed, including carbon dioxide components and extraction components. Carbon dioxide components are used to heat up carbon dioxide through the heater to improve their activity and liquidity. The extraction component is fully mixed with the carbon dioxide through the mixing motor and mixing leaves to improve the extraction efficiency.

Benefits of technology

By heating carbon dioxide and fully mixed with thick oil in the extraction tank, it significantly improved the extraction efficiency and solved the problem of low existing extraction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the related technical field of thickened oil recovery, in particular to a thickened oil carbon dioxide extraction device which comprises a control center, a carbon dioxide assembly is arranged at one end of a connecting wire, an extraction assembly is arranged on the surface of one side of the carbon dioxide assembly, and a condensation assembly is arranged on the surface of one side of the extraction assembly. A separation assembly is arranged on the surface of one side of the condensation assembly. According to the thickened oil carbon dioxide extraction device, through the arrangement of the carbon dioxide assembly and the extraction assembly, when the device is used, a valve is started through a control center, so that carbon dioxide flows out of a carbon dioxide storage tank and enters a carbon dioxide pipeline and a heater after passing through the valve to heat the carbon dioxide; the temperature of the heated carbon dioxide is increased, the activity of the carbon dioxide is enhanced, the carbon dioxide enters the extraction tank, the thickened oil is added into the extraction tank from the feeding port, the stirring motor is started to drive the stirring shaft to rotate, the carbon dioxide is in full contact with the thickened oil, and the extraction efficiency is improved.
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Description

Technical Field

[0001] The invention relates to the technical field related to heavy oil exploitation, and in particular to a heavy oil carbon dioxide extraction device. Background Art

[0002] Heavy oil, also called heavy oil or asphaltene oil, is a type of petroleum with the characteristics of high viscosity and high density. It contains more heavy components, such as asphaltenes and colloids, so it has poor fluidity at room temperature and is difficult to mine and transport. Heavy oil resources are widely distributed around the world, especially in countries such as Canada, Venezuela, Russia and China. China has also made significant progress in the development of heavy oil resources, especially in Liaohe Oilfield, Shengli Oilfield and other regions. The development and utilization of heavy oil is of great significance to energy security and economic development. With the advancement of technology and the increase in energy demand, the mining and utilization technology of heavy oil is also constantly improving and developing. Therefore, a heavy oil carbon dioxide extraction device is particularly needed.

[0003] However, the existing extraction device, when in use, does not have sufficient contact between carbon dioxide and heavy oil, which makes the extraction process slow and the overall extraction efficiency relatively low.

[0004] Invention content

[0005] The object of the present invention is to provide a heavy oil carbon dioxide extraction device to solve the problem that the existing extraction device proposed in the above background technology does not contact the heavy oil sufficiently during use, so that the extraction process progresses slowly and the overall extraction efficiency is relatively low.

[0006] To achieve the above object, the present invention provides the following technical solution: a heavy oil carbon dioxide extraction device, comprising a control center, a connecting wire is fixedly connected to one side surface of the control center, a carbon dioxide component is arranged at one end of the connecting wire, an extraction component is arranged on one side surface of the carbon dioxide component, a condensation component is arranged on one side surface of the extraction component, a separation component is arranged on one side surface of the condensation component, and a connecting pipe is arranged on one side surface of the separation component;

[0007] The carbon dioxide assembly includes a carbon dioxide storage tank, a first supporting leg, a valve, a flow meter, a carbon dioxide pipeline and a heater, one end of the connecting wire is fixedly connected to the carbon dioxide storage tank, the lower surface of the carbon dioxide storage tank is fixedly connected to the first supporting leg, the upper surface of the carbon dioxide storage tank is fixedly connected to the valve, the upper surface of the valve is fixedly connected to the flow meter, the upper surface of the valve is fixedly connected to the carbon dioxide pipeline, and the outer surface of the carbon dioxide pipeline is fixedly connected to the heater.

[0008] Preferably, the connecting wires are provided in multiple groups on a side surface of the control center, and the first supporting legs are provided in multiple groups on a lower surface of the carbon dioxide storage tank.

[0009] Preferably, the valve and the flow meter cooperate with each other to measure the flow of carbon dioxide, and the heater is an electric heating belt capable of heating carbon dioxide.

[0010] Preferably, the extraction component includes a connecting port, an extraction tank, a feed port, a feed cover, a condensation pipe, an insulation layer, a discharge port, a second supporting leg, a stirring motor, a stirring shaft, stirring blades and a breaking rod, a side surface of the carbon dioxide pipe is fixedly connected with the connecting port, a lower surface of the connecting port is fixedly connected with the extraction tank, an upper surface of the extraction tank is fixedly connected with the feed port, a side surface of the feed port is rotatably connected with the feed cover, an upper surface of the extraction tank is fixedly connected with the condensation pipe, an outer surface of the extraction tank is fixedly connected with the insulation layer, a lower surface of the extraction tank is fixedly connected with the discharge port, a second supporting leg is fixedly connected with the lower surface of the extraction tank, an upper surface of the extraction tank is fixedly connected with the stirring motor, a lower surface of the stirring motor is fixedly connected with the stirring shaft, an outer surface of the stirring shaft is fixedly connected with the stirring blades, and an outer surface of the stirring shaft is fixedly connected with the breaking rod.

[0011] Preferably, the insulation layer is made of rock wool, and a plurality of second supporting legs are provided on the lower surface of the extraction tank.

[0012] Preferably, the stirring blades are provided in multiple groups on the outer surface of the stirring shaft, and the breaking rods are provided in multiple groups on the outer surface of the stirring shaft.

[0013] Preferably, the condensation assembly includes a condensation port, a condenser, a fixed block, a water outlet, a support frame and a condensation outlet, a side surface of the condensation pipe is fixedly connected with the condensation port, a side surface of the condensation port is fixedly connected with the condenser, an outer surface of the condenser is fixedly connected with the fixed block, a lower surface of the condenser is fixedly connected with the water outlet, the outer surface of the condenser is fixedly connected with the support frame, and the outer surface of the condenser is fixedly connected with the condensation outlet.

[0014] Preferably, a plurality of fixing blocks are arranged on the outer surface of the condenser, and the fixing blocks are threadedly connected to the support frame.

[0015] Preferably, the separation assembly includes a separator inlet, a separator, a fixing ring, a support rod, an exhaust pipe, a guide plate, a liquid separator plate, a liquid collector and a gas outlet, one side surface of the condensation outlet is fixedly connected to the separator inlet, one side surface of the separator inlet is fixedly connected to the separator, the upper surface of the separator is fixedly connected to the fixing ring, the lower surface of the separator is fixedly connected to the support rod, the inner surface of the separator is fixedly connected to the exhaust pipe, the outer surface of the exhaust pipe is fixedly connected to the guide plate, the inner surface of the separator is fixedly connected to the liquid separator plate, the lower surface of the separator is fixedly connected to the liquid collector, and one side surface of the exhaust pipe is fixedly connected to the gas outlet.

[0016] Preferably, a plurality of through holes are provided on the surface of the liquid separation plate, and the guide plate is spiral-shaped.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the device for extracting carbon dioxide from heavy oil is provided with a carbon dioxide component and an extraction component. When in use, the carbon dioxide storage tank is used to store liquid carbon dioxide. A valve is started by a control center to allow carbon dioxide to flow out of the carbon dioxide storage tank. A flow meter monitors the flow of carbon dioxide in real time. The valve opening can be adjusted as needed to control the flow. After carbon dioxide passes through the valve, it enters the carbon dioxide pipeline. At this time, a heater on the outside of the pipeline starts to work to heat the carbon dioxide. The temperature of the heated carbon dioxide increases, its activity is enhanced, and its fluidity is better, which is conducive to better contact with and extraction of heavy oil in the subsequent extraction process. The heated carbon dioxide transported through the carbon dioxide pipeline Carbon enters the extraction tank through the connection port, and at the same time, heavy oil is added to the extraction tank from the feed port. After the addition is completed, the feed cover is closed to ensure that the extraction process is carried out in a relatively closed environment. The stirring motor starts, driving the stirring shaft to rotate, and the stirring blades and breaking rods on the stirring shaft rotate accordingly. The stirring blades continuously stir the heavy oil and carbon dioxide to make the two fully mixed and contacted, thereby improving the extraction efficiency. The breaking rod can break up the lumps or agglomerates that may exist in the heavy oil, and further promote the uniform contact between the heavy oil and carbon dioxide. During the extraction process, since factors such as the external ambient temperature may affect the extraction effect, the insulation layer on the outside of the extraction tank plays a role in reducing heat loss, maintaining suitable temperature conditions in the tank, improving energy utilization, allowing carbon dioxide to fully contact with the heavy oil, and improving extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the side appearance structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the carbon dioxide storage tank and the extraction tank cooperating with each other in the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the carbon dioxide pipeline and the heater cooperating with each other in the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the stirring shaft and stirring blades cooperating with each other in the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the condenser and the separator cooperating with each other in the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the liquid separation plate and the liquid collector cooperating with each other in the present invention;

[0025] Figure 8 It is a schematic diagram of the structure in which the exhaust pipe and the gas outlet cooperate with each other in the present invention.

[0026] In the figure: 1. Control center; 2. Connecting wires; 3. Carbon dioxide assembly; 301. Carbon dioxide storage tank; 302. First support leg; 303. Valve; 304. Flow meter; 305. Carbon dioxide pipeline; 306. Heater; 4. Extraction assembly; 401. Connection port; 402. Extraction tank; 403. Feed port; 404. Feed cover; 405. Condensation pipeline; 406. Insulation layer; 407. Discharge port; 408. Second support leg; 409. Stirring motor ...9. Stirring motor; 401. Connection port; 402. Extraction tank; 403. Feed port; 404. Feed cover; 405. Condensation pipeline; 406. Insulation layer; 407. Discharge port; 408. Second support leg; 409. Stirring motor; 409. 10. Stirring shaft; 411. Stirring blade; 412. Breaking rod; 5. Condensation assembly; 501. Condensation port; 502. Condenser; 503. Fixing block; 504. Water outlet; 505. Support frame; 506. Condensation outlet; 6. Separation assembly; 601. Separator inlet; 602. Separator; 603. Fixing ring; 604. Support rod; 605. Exhaust pipe; 606. Guide plate; 607. Separation plate; 608. Liquid collector; 609. Gas outlet; 7. Connecting pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-8The present invention provides a technical solution: a heavy oil carbon dioxide extraction device, comprising a control center 1, a connecting wire 2 is fixedly connected to one side surface of the control center 1, a carbon dioxide component 3 is arranged at one end of the connecting wire 2, an extraction component 4 is arranged on one side surface of the carbon dioxide component 3, a condensation component 5 is arranged on one side surface of the extraction component 4, a separation component 6 is arranged on one side surface of the condensation component 5, and a connecting pipe 7 is arranged on one side surface of the separation component 6;

[0029] The carbon dioxide assembly 3 includes a carbon dioxide storage tank 301, a first support leg 302, a valve 303, a flow meter 304, a carbon dioxide pipeline 305 and a heater 306. One end of the connecting wire 2 is fixedly connected to the carbon dioxide storage tank 301, the lower surface of the carbon dioxide storage tank 301 is fixedly connected to the first support leg 302, the upper surface of the carbon dioxide storage tank 301 is fixedly connected to the valve 303, the upper surface of the valve 303 is fixedly connected to the flow meter 304, the upper surface of the valve 303 is fixedly connected to the carbon dioxide pipeline 305, and the outer surface of the carbon dioxide pipeline 305 is fixedly connected to the heater 306. 305 and the heater 306 are arranged. When in use, the carbon dioxide storage tank 301 is used to store liquid carbon dioxide. The valve 303 is started by the control center 1 to make the carbon dioxide flow out of the carbon dioxide storage tank 301. The flow meter 304 monitors the flow of carbon dioxide in real time. The opening of the valve 303 can be adjusted as needed to control the flow. After the carbon dioxide passes through the valve 303, it enters the carbon dioxide pipeline 305. At this time, the heater 306 on the outside of the pipeline starts to work to heat the carbon dioxide. The temperature of the heated carbon dioxide increases, its activity is enhanced, and its fluidity is better, which is conducive to better contact with and extraction of the heavy oil in the subsequent extraction process. The heated carbon dioxide is transported to the extraction component 4 along the pipeline to participate in the extraction process of the heavy oil.

[0030] Furthermore, multiple groups of connecting wires 2 are arranged on the side surface of the control center 1, and multiple groups of first supporting legs 302 are arranged on the lower surface of the carbon dioxide storage tank 301. Through the arrangement of the connecting wires 2, when in use, the control center 1 can connect various components through the connecting wires 2, control the parameters of various devices, and make the extraction of heavy oil more accurate.

[0031] Furthermore, valve 303 and flow meter 304 cooperate with each other to measure the flow of carbon dioxide. Heater 306 is an electric heating belt that can heat carbon dioxide. Through the setting of heater 306, when in use, heater 306 heats carbon dioxide. The temperature of the heated carbon dioxide increases, its activity is enhanced, and its fluidity is better.

[0032] Furthermore, the extraction component 4 includes a connection port 401, an extraction tank 402, a feed port 403, a feed cover 404, a condensation pipe 405, an insulation layer 406, a discharge port 407, a second support leg 408, a stirring motor 409, a stirring shaft 410, a stirring blade 411 and a breaking rod 412. The connection port 401 is fixedly connected to the surface of one side of the carbon dioxide pipeline 305, the extraction tank 402 is fixedly connected to the surface below the connection port 401, the feed port 403 is fixedly connected to the upper surface of the extraction tank 402, the feed port 403 is rotatably connected to the feed cover 404, and the upper surface of the extraction tank 402 is fixedly connected to the condensation pipe 405. The outer surface of the extraction tank 402 is fixedly connected with a heat-insulating layer 406, the lower surface of the extraction tank 402 is fixedly connected with a discharge port 407, the lower surface of the extraction tank 402 is fixedly connected with a second support leg 408, the upper surface of the extraction tank 402 is fixedly connected with a stirring motor 409, the lower surface of the stirring motor 409 is fixedly connected with a stirring shaft 410, the outer surface of the stirring shaft 410 is fixedly connected with a stirring blade 411, the outer surface of the stirring shaft 410 is fixedly connected with a breaking rod 412, and ... discharge port 407, the lower surface of the extraction tank 40 06. The discharge port 407, the second support leg 408, the stirring motor 409, the stirring shaft 410, the stirring blade 411 and the crushing rod 412 are arranged. When in use, the heated carbon dioxide delivered by the carbon dioxide pipeline 305 enters the extraction tank 402 through the connecting port 401. At the same time, the heavy oil is added to the extraction tank 402 from the feed port 403. After the addition is completed, the feed cover 404 is closed to ensure that the extraction process is carried out in a relatively closed environment. The stirring motor 409 is started to drive the stirring shaft 410 to rotate, and the stirring blade 411 and the crushing rod 412 on the stirring shaft 410 rotate accordingly. The stirring blade 411 continuously stirs the heavy oil and carbon dioxide , so that the two are fully mixed and contacted, and the extraction efficiency is improved. The crushing rod 412 can break up the lumps or lumps that may exist in the heavy oil, and further promote the uniform contact between the heavy oil and the carbon dioxide. During the extraction process, since factors such as the external environmental temperature may affect the extraction effect, the insulation layer 406 on the outside of the extraction tank 402 plays a role in reducing heat loss, maintaining suitable temperature conditions in the tank, improving energy utilization, allowing carbon dioxide to fully contact with the heavy oil, and improving the extraction efficiency. When the extraction is completed, the product is discharged through the discharge port 407, and the gaseous mixture generated during the extraction process will enter the condensation component 5 through the condensation pipe 405 for subsequent treatment.

[0033] Furthermore, the insulation layer 406 is made of rock wool, and multiple groups of second support legs 408 are arranged on the lower surface of the extraction tank 402. Through the arrangement of the insulation layer 406, when in use, the insulation layer 406 can reduce heat loss, maintain suitable temperature conditions in the tank, and improve energy utilization.

[0034] Furthermore, multiple groups of stirring blades 411 are arranged on the outer surface of the stirring shaft 410, and multiple groups of breaking rods 412 are arranged on the outer surface of the stirring shaft 410. Through the arrangement of the stirring blades 411 and the breaking rods 412, when in use, the stirring blades 411 continuously stir the heavy oil and carbon dioxide, so that the two are fully mixed and contacted, thereby improving the extraction efficiency, and the breaking rods 412 can break up the lumps or agglomerates that may exist in the heavy oil, thereby further promoting the uniform contact between the heavy oil and carbon dioxide.

[0035] Furthermore, the condensation component 5 includes a condensation port 501, a condenser 502, a fixed block 503, a water flow port 504, a support frame 505 and a condensation outlet 506. The condensation port 501 is fixedly connected to the surface of one side of the condensation pipe 405, the condensation port 501 is fixedly connected to the surface of one side of the condensation port 501, the condenser 502 is fixedly connected to the outer surface of the condenser 502, the fixed block 503 is fixedly connected to the water flow port 504 on the lower surface of the condenser 502, the support frame 505 is fixedly connected to the outer surface of the condenser 502, and the condensation outlet 506 is fixedly connected to the outer surface of the condenser 502. When in use, the gaseous mixture containing carbon dioxide and the extract discharged from the extraction tank 402 passes through the condensation pipe 405 and enters the condenser 502 through the condensation port 501. The cooling water enters the cooling channel inside the condenser 502 from the water flow port 504, absorbs the heat in the gaseous mixture, and reduces the temperature of the gaseous mixture. As the temperature decreases, the gaseous mixture gradually condenses into a liquid or partially liquid state. The condensed mixture is discharged from the condensation outlet 506 and enters the subsequent separation and processing link to achieve the preliminary separation of carbon dioxide and the extract, and prepare for further processing and recycling. The fixing block 503 and the support frame 505 can provide support for the condenser 502, so that the condenser 502 can be installed more firmly and stably.

[0036] Furthermore, multiple groups of fixing blocks 503 are arranged on the outer surface of the condenser 502, and the fixing blocks 503 are threadedly connected to the support frame 505. Through the arrangement of the fixing blocks 503, when in use, the fixing blocks 503 firmly fix the condenser 502 in the installation position to ensure that it remains stable during operation.

[0037] Further, the separation component 6 includes a separator inlet 601, a separator 602, a fixing ring 603, a support rod 604, an exhaust pipe 605, a guide plate 606, a liquid separator plate 607, a liquid collector 608 and a gas outlet 609, one side surface of the condensation outlet 506 is fixedly connected with the separator inlet 601, one side surface of the separator inlet 601 is fixedly connected with the separator 602, the upper surface of the separator 602 is fixedly connected with the fixing ring 603, the lower surface of the separator 602 is fixedly connected with the support rod 604, the inner surface of the separator 602 is fixedly connected with the exhaust pipe 605, the outer surface of the exhaust pipe 605 is fixedly connected with the guide plate 606, the inner surface of the separator 602 is fixedly connected with the liquid separator plate 607, the lower surface of the separator 602 is fixedly connected with the liquid collector 608, and one side surface of the exhaust pipe 605 is fixedly connected with the gas outlet 609. 2. The arrangement of the fixing ring 603, the support rod 604, the exhaust pipe 605, the guide plate 606, the liquid separator 607, the liquid collector 608 and the gas outlet 609. When in use, the condensed mixture enters the separator 602 from the condensation outlet 506 through the separator inlet 601. After entering the separator 602, under the guidance of the guide plate 606, the mixture flows in a specific flow direction inside the separator 602. Due to the difference in physical properties between carbon dioxide and the extract, when flowing through the liquid separator 607, a preliminary separation is achieved according to the gravity difference. The carbon dioxide gas with a smaller density moves upward, while the extract with a larger density flows downward. During the rising process, the carbon dioxide gas passes through the exhaust pipe 605 and is finally discharged from the gas outlet 609, and re-enters the carbon dioxide storage tank 301 through the connecting pipe 7, so as to achieve the reuse of carbon dioxide. The extract flowing downward is collected in the liquid collector 608 for subsequent processing and collection.

[0038] Furthermore, a plurality of through holes are provided on the surface of the separator plate 607, and the guide plate 606 is spiral-shaped. Through the setting of the separator plate 607, when in use, the through holes on the separator plate 607 can leak out the extract, just like a physical barrier, guiding substances of different densities to move in different directions, thereby achieving preliminary separation.

[0039] Working principle: The carbon dioxide storage tank 301 is used to store liquid carbon dioxide. The valve 303 is activated by the control center 1 to allow the carbon dioxide to flow out of the carbon dioxide storage tank 301. The flow meter 304 monitors the flow of carbon dioxide in real time. The opening of the valve 303 can be adjusted as needed to control the flow rate. After the carbon dioxide passes through the valve 303, it enters the carbon dioxide pipeline 305. At this time, the heater 306 on the outside of the pipeline starts to work to heat the carbon dioxide. The temperature of the heated carbon dioxide increases, its activity is enhanced, and its fluidity is better, which is conducive to better contact with and extraction of heavy oil in the subsequent extraction process. The heated carbon dioxide transported through the carbon dioxide pipeline 305 enters the extraction tank 402 through the connecting port 401. At the same time, the thick oil The oil is added into the extraction tank 402 from the feed port 403. After the addition is completed, the feed cover 404 is closed to ensure that the extraction process is carried out in a relatively closed environment. The stirring motor 409 is started to drive the stirring shaft 410 to rotate, and the stirring blades 411 and the crushing rods 412 on the stirring shaft 410 rotate accordingly. The stirring blades 411 continuously stir the heavy oil and carbon dioxide to make the two fully mixed and contacted to improve the extraction efficiency. The crushing rods 412 can break up the lumps or agglomerates that may exist in the heavy oil, and further promote the uniform contact between the heavy oil and carbon dioxide. During the extraction process, since the external environmental temperature and other factors may affect the extraction effect, the insulation layer 406 on the outside of the extraction tank 402 plays a role in reducing heat loss, maintaining a suitable temperature condition in the tank, and improving energy utilization. The carbon dioxide is allowed to fully contact with the heavy oil to improve the extraction efficiency. When the extraction is completed, the product is discharged through the discharge port 407. The gaseous mixture containing carbon dioxide and the extract discharged from the extraction tank 402 passes through the condensation pipe 405 and enters the condenser 502 through the condensation port 501. The cooling water enters the cooling channel inside the condenser 502 from the water flow port 504 to absorb the heat in the gaseous mixture and reduce the temperature of the gaseous mixture. As the temperature decreases, the gaseous mixture gradually condenses into a liquid or partially liquid state. The condensed mixture is discharged from the condensation outlet 506 and enters the subsequent separation and processing link to achieve the preliminary separation of carbon dioxide and the extract, so as to prepare for further processing and recycling. The fixed block 503 and the support frame 505 can be The condenser 502 provides support, so that the condenser 502 is installed more firmly and stably. The condensed mixture enters the separator 602 from the condensation outlet 506 through the separator inlet 601. After entering the separator 602, under the guidance of the guide plate 606, it flows inside the separator 602 in a specific flow direction. Due to the difference in physical properties between carbon dioxide and the extract, when flowing through the liquid separation plate 607, preliminary separation is achieved according to the gravity difference. The carbon dioxide gas with a smaller density moves upward, while the extract with a larger density flows downward. During the rising process, the carbon dioxide gas passes through the exhaust pipe 605 and is finally discharged from the gas outlet 609, and re-enters the carbon dioxide storage tank 301 through the connecting pipe 7, so as to realize the reuse of carbon dioxide.The extract flowing downward is collected in the liquid collector 608 for subsequent processing and collection.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for extracting carbon dioxide from heavy oil, comprising a control center (1), characterized in that: A connecting wire (2) is fixedly connected to one side surface of the control center (1); a carbon dioxide component (3) is provided at one end of the connecting wire (2); an extraction component (4) is provided on one side surface of the carbon dioxide component (3); a condensation component (5) is provided on one side surface of the extraction component (4); a separation component (6) is provided on one side surface of the condensation component (5); and a connecting pipe (7) is provided on one side surface of the separation component (6); The carbon dioxide assembly (3) comprises a carbon dioxide storage tank (301), a first supporting leg (302), a valve (303), a flow meter (304), a carbon dioxide pipeline (305) and a heater (306); one end of the connecting wire (2) is fixedly connected to the carbon dioxide storage tank (301); the lower surface of the carbon dioxide storage tank (301) is fixedly connected to the first supporting leg (302); the upper surface of the carbon dioxide storage tank (301) is fixedly connected to the valve (303); the upper surface of the valve (303) is fixedly connected to the flow meter (304); the upper surface of the valve (303) is fixedly connected to the carbon dioxide pipeline (305); and the outer surface of the carbon dioxide pipeline (305) is fixedly connected to the heater (306).

2. A device for extracting carbon dioxide from heavy oil according to claim 1, characterized in that: The connecting wires (2) are arranged in multiple groups on a side surface of the control center (1), and the first supporting legs (302) are arranged in multiple groups on a lower surface of the carbon dioxide storage tank (301).

3. The device for extracting carbon dioxide from heavy oil according to claim 1, characterized in that: The valve (303) and the flow meter (304) cooperate with each other to measure the flow of carbon dioxide, and the heater (306) is an electric heating belt that can heat carbon dioxide.

4. The device for extracting carbon dioxide from heavy oil according to claim 1, characterized in that: The extraction component (4) comprises a connection port (401), an extraction tank (402), a feed port (403), a feed cover (404), a condensation pipe (405), an insulation layer (406), a discharge port (407), a second support leg (408), a stirring motor (409), a stirring shaft (410), a stirring blade (411) and a crushing rod (412); a side surface of the carbon dioxide pipe (305) is fixedly connected to the connection port (401); a lower surface of the connection port (401) is fixedly connected to the extraction tank (402); a top surface of the extraction tank (402) is fixedly connected to the feed port (403); a side surface of the feed port (403) is rotatably connected to the feed cover (401). 4), a condensation pipe (405) is fixedly connected to the upper surface of the extraction tank (402), a heat-insulating layer (406) is fixedly connected to the outer surface of the extraction tank (402), a discharge port (407) is fixedly connected to the lower surface of the extraction tank (402), a second supporting leg (408) is fixedly connected to the lower surface of the extraction tank (402), a stirring motor (409) is fixedly connected to the upper surface of the extraction tank (402), a stirring shaft (410) is fixedly connected to the lower surface of the stirring motor (409), a stirring blade (411) is fixedly connected to the outer surface of the stirring shaft (410), and a crushing rod (412) is fixedly connected to the outer surface of the stirring shaft (410).

5. The device for extracting carbon dioxide from heavy oil according to claim 4, characterized in that: The material of the thermal insulation layer (406) is rock wool, and a plurality of second supporting legs (408) are arranged on the lower surface of the extraction tank (402).

6. The device for extracting carbon dioxide from heavy oil according to claim 4, characterized in that: The stirring blades (411) are provided in multiple groups on the outer surface of the stirring shaft (410), and the crushing rods (412) are provided in multiple groups on the outer surface of the stirring shaft (410).

7. The device for extracting carbon dioxide from heavy oil according to claim 4, characterized in that: The condensation component (5) comprises a condensation port (501), a condenser (502), a fixing block (503), a water flow port (504), a support frame (505) and a condensation outlet (506); a side surface of the condensation pipe (405) is fixedly connected with the condensation port (501); a side surface of the condensation port (501) is fixedly connected with the condenser (502); an outer surface of the condenser (502) is fixedly connected with the fixing block (503); a lower surface of the condenser (502) is fixedly connected with the water flow port (504); a side surface of the condenser (502) is fixedly connected with the support frame (505); and a side surface of the condenser (502) is fixedly connected with the condensation outlet (506).

8. The device for extracting carbon dioxide from heavy oil according to claim 7, characterized in that: The fixing blocks (503) are arranged in multiple groups on the outer surface of the condenser (502), and the fixing blocks (503) are threadedly connected to the support frame (505).

9. The device for extracting carbon dioxide from heavy oil according to claim 7, characterized in that: The separation assembly (6) comprises a separator inlet (601), a separator (602), a fixing ring (603), a support rod (604), an exhaust pipe (605), a guide plate (606), a liquid separation plate (607), a liquid collector (608) and a gas outlet (609); a side surface of the condensation outlet (506) is fixedly connected to the separator inlet (601); a side surface of the separator inlet (601) is fixedly connected to the separator (602); and an upper surface of the separator (602) is fixedly connected to the fixing ring. (603), the lower surface of the separator (602) is fixedly connected to a support rod (604), the inner surface of the separator (602) is fixedly connected to an exhaust pipe (605), the outer surface of the exhaust pipe (605) is fixedly connected to a guide plate (606), the inner surface of the separator (602) is fixedly connected to a liquid separation plate (607), the lower surface of the separator (602) is fixedly connected to a liquid collector (608), and one side surface of the exhaust pipe (605) is fixedly connected to a gas outlet (609).

10. The device for extracting carbon dioxide from heavy oil according to claim 9, characterized in that: The surface of the liquid separation plate (607) is provided with a plurality of through holes, and the guide plate (606) is spiral-shaped.