Hydrocarbon generation simulation experiment cold trap optimization device

Abstract

The utility model belongs to the technical field of hydrocarbon generation simulation experiment instruments, and discloses a hydrocarbon generation simulation experiment cold trap optimizing device which comprises a cold trap and an oil gas inlet pipe, and further comprises a driving motor, a rotating shaft and an oval wheel, the output end of the driving motor is fixedly connected with the rotating shaft, and the oval wheel is fixedly installed on the outer ring of the rotating shaft. One side of the oval wheel is connected with a movable column perpendicular to the rotating shaft, an oil gas inlet is formed in the movable column, the cold trap is connected with the oil gas inlet, a fixing plate is arranged on one side of the oil gas inlet pipe, a supporting plate is welded to the outer ring of the fixing plate, and one side of the supporting plate is welded to the inner wall of the oil gas inlet pipe. A spring is welded to the surface of the side, away from the supporting plate, of the fixing plate, the other end of the spring is fixedly connected with a movable column, and a sliding plate is arranged on the outer ring of the movable column. Through the driving motor, the movable column and the like, oil and gas are prevented from being blocked by ice when entering a pipeline, so that the oil and gas separation efficiency is improved; and a super-hydrophobic super-oleophylic material block is placed in the cold trap and is used for realizing water-oil separation.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrocarbon generation simulation experiment instruments, in particular to a cold trap optimization device for hydrocarbon generation simulation experiments. Background Art

[0002] During the hydrocarbon generation simulation process, both long-chain hydrocarbons and short-chain hydrocarbons are generated, so gas-liquid separation is required. The current experimental oil-gas separation method is: open the hydrocarbon discharge valve, collect the oil and gas into the pipeline between the hydrocarbon discharge valve and the main collection valve, close the hydrocarbon discharge valve, open the main collection valve, open the hydrocarbon discharge micro-control, and the oil and gas enter the cold trap through the gas-liquid separation valve, the oil and gas are separated, the oil and water are cooled and remain in the tank, and the gas enters the gas collection device behind through the gas collection valve. In addition, after the experiment, the pipeline needs to be cleaned. The steps involved include the solvent tank liquid inlet and outlet operation, the segmented cleaning of the pipeline, and the collection of the cleaning liquid. The specific operations are as follows: (1) Solvent tank liquid inlet and outlet: Use the vacuum pump provided in the hydrocarbon generation simulator, the vacuum pump contains a vacuum pressure detection system, turn on the vacuum pump, and then open the solvent evacuation valve on the pipeline connecting the vacuum pump and the solvent tank to make the vacuum pressure in the solvent tank reach -0.1MPa. Use the hose connected to the solvent tank and connected to the outside of the instrument and the solvent replenishing valve that can control the hose connection state, as well as the vacuum negative pressure in the solvent tank to replenish the organic solvent into the solvent tank. After the vacuum pressure is reached, close the solvent evacuation valve and then turn off the vacuum pump. Pour the organic solvent into the beaker, immerse the hose connected to the solvent tank into the beaker, and then open the solvent filling valve to use the vacuum negative pressure to suck the solvent in. (2) Segmented cleaning of the pipeline: including the cleaning of the hydrocarbon discharge side pipeline and the cleaning of the oil and gas collection side pipeline. The two sides of the pipeline are separated by the solvent valve and are cleaned by injecting air through an external air compressor connected to the hydrocarbon generation simulator. The air compressor is connected to the solvent tank and is controlled by the solvent pressure valve in the middle. When the solvent tank is filled with solvent, the solvent pressure valve is opened by the air compressor to inject air and then open the solvent valve to inject the solvent into the experimental main pipeline through which the oil and gas pass in the experiment. To clean the side, all the valves on that side are opened. When cleaning the hydrocarbon discharge side of the pipeline, open the solvent valve and the hydrocarbon discharge valve, and use a beaker to collect the organic solvent after flushing at the hydrocarbon discharge pipe port; when cleaning the oil and gas collection side of the pipeline, open the solvent valve, the main collection valve, and the hydrocarbon discharge micro-control valve, and finally use a beaker to collect the organic solvent after flushing at the gas-liquid separation valve port. (3) Collection of cleaning liquid: The oily solvent washed out can be poured into an oil-containing cold trap. After shaking and cleaning the cold trap, use a separatory funnel to separate the liquid and separate the water. Then pour them into the water bath evaporation heating bottle of the rotary evaporator to separate the oil and organic solvent, collect the pure oil product, and recycle the organic solvent. At present, the commonly used organic solvent in the laboratory is dichloromethane, which has a very low boiling point, evaporates at room temperature, and is easy to separate from the oil.

[0003] The aforementioned oil-gas separation device and oil-water separation method still present a number of issues: 1. The cold trap, which collects hydrocarbon products, can sometimes become blocked by ice due to its low temperature, making it difficult for oil and gas to enter, resulting in a low oil-gas separation rate. 2. Cold trap blockage typically occurs on the air inlet side. In this case, hot air from a hair dryer and tapping and vibrating the pipes are typically used to vaporize the attached solid oil and unclog the pipes. However, this procedure can loosen screws on the air inlet side, leading to leaks and significant errors in experimental results while also polluting the laboratory environment. 3. Using a separatory funnel for separation may prevent some of the oil and organic solvent mixture from being completely separated from the water, resulting in the loss of some product. 4. After the oil is collected in the cold trap, it is typically extracted with dichloromethane, followed by separation by separation, and then the oil and water are evaporated in a water bath rotary evaporation process to obtain the final oil product. This process is time-consuming and can easily result in the loss of small-molecule hydrocarbons.

[0004] Therefore, in order to solve the problems of oil and gas separation and recovery in the experiment, it is urgent to study a cold trap optimization device for hydrocarbon generation simulation experiments. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a cold trap optimization device for hydrocarbon generation simulation experiments, which can effectively improve the separation efficiency of oil and gas.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A cold trap optimization device for a hydrocarbon generation simulation experiment includes a cold trap and an oil and gas inlet pipe, as well as a drive motor, a rotating shaft and an elliptical wheel. The output end of the drive motor is fixedly connected to the rotating shaft, and the outer ring of the rotating shaft is fixedly installed with an elliptical wheel. One side of the elliptical wheel is connected to a movable column perpendicular to the rotating shaft, and the movable column is provided with an oil and gas inlet. The cold trap is connected to the oil and gas inlet. A fixed plate is provided on one side of the oil and gas inlet pipe, and a support plate is welded to the outer ring of the fixed plate. One side of the support plate is welded to the inner wall of the oil and gas inlet pipe for supporting the fixed plate. A spring is welded to the surface of the fixed plate away from the support plate, and the other end of the spring is fixedly connected to the movable column. A sliding plate is provided on the outer ring of the movable column.

[0008] Optionally, the cold trap is connected to the oil and gas inlet via a connector.

[0009] Optionally, a groove is provided on a side of the elliptical wheel close to the movable column, and the movable column is installed in the groove.

[0010] Optionally, a super-hydrophobic and super-oleophilic material block is placed at the bottom of the cold trap for water-oil separation.

[0011] Optionally, a limiting groove is provided on the inner wall of the oil and gas inlet pipe, and a side of the sliding plate away from the movable column is located in the limiting groove.

[0012] Optionally, the oil and gas inlet is located between the sliding plate on the movable column and the oval wheel.

[0013] The technical solution provided by the embodiment of the present invention can include the following beneficial effects: the present invention is mainly based on optimizing the cold trap, and by setting a drive motor, a movable column, etc., the drive motor provides power to control the rotation of the cold trap; the movable column is used to determine the range of motion of the cold trap. These two components mainly control the rotation of the cold trap on the axis, and starting the drive motor controls the cold trap to rotate and reciprocate on the movable column, preventing the oil and gas from being blocked by ice when entering the pipeline, making it inconvenient for the oil and gas to enter, thereby improving the separation efficiency of the oil and gas. In addition, a super-hydrophobic and super-oleophilic material block that can absorb oil is placed inside the cold trap to separate the water-oil mixture, avoiding the use of a separatory funnel for separation, which causes some oil to be wasted due to incomplete separation from the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0015] Figure 1 This utility model is a cold trap optimization device for hydrocarbon generation simulation experiments;

[0016] Figure 2 The utility model is a cold trap.

[0017] Figure numerals: 1. Support plate; 2. Fixed plate; 3. Oil and gas inlet pipe; 4. Spring; 5. Sliding plate; 6. Movable column; 7. Rotating shaft; 8. Oval wheel; 9. Connecting part; 10. Super-hydrophobic and super-oleophilic material block; 11. Oil and gas inlet. DETAILED DESCRIPTION

[0018] The following description and the accompanying drawings sufficiently illustrate the specific embodiments of this invention to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The scope of the embodiments herein includes the entire scope of the claims, and all available equivalents of the claims.

[0019] A cold trap optimization device for hydrocarbon generation simulation experiments, such as Figure 1As shown, it includes a cold trap and an oil and gas inlet pipe 3, as well as a driving motor, a rotating shaft 7 and an elliptical wheel 8. The output end of the driving motor is fixedly connected to the rotating shaft 7, and the outer ring of the rotating shaft 7 is fixedly installed with an elliptical wheel 8. One side of the elliptical wheel 8 is connected to a movable column 6 perpendicular to the rotating shaft 7. The movable column 6 is provided with an oil and gas inlet 11. The cold trap is connected to the oil and gas inlet 11. A fixed plate 2 is provided on one side of the oil and gas inlet pipe 3. The outer ring of the fixed plate 2 is welded with a support plate 1, and one side of the support plate 1 is welded to the inner wall of the oil and gas inlet pipe 3 for supporting the fixed plate 2. A spring 4 is welded to the surface of the fixed plate 2 away from the support plate 1. The other end of the spring 4 is fixedly connected to the movable column 6, and the outer ring of the movable column 6 is provided with a sliding plate 5.

[0020] like Figure 2 As shown, the cold trap is connected to the oil and gas inlet via a connector 9.

[0021] Optionally, a groove is provided on a side of the elliptical wheel 8 close to the movable column 6 , and the movable column 6 is installed in the groove.

[0022] Optionally, a super-hydrophobic and super-oleophilic material block 10 is placed at the bottom of the cold trap for water-oil separation.

[0023] Optionally, a limiting groove is provided on the inner wall of the oil and gas inlet pipe 3 , and a side of the sliding plate 5 away from the movable column 6 is located in the limiting groove.

[0024] Optionally, the oil and gas inlet 11 is located between the sliding plate 5 and the elliptical wheel 8 on the movable column 6 .

[0025] When the device of the present invention is used, the original pipeline for introducing oil and gas, i.e., the connector 9, is connected to the oil and gas inlet 11, and the oil and gas to be separated enter the cold trap; at this time, the drive motor is started, and the drive motor drives the rotating shaft 7 to rotate. When the rotating shaft 7 rotates, the elliptical wheel 8 is driven to rotate. At this time, the elliptical wheel 8 can squeeze the movable column 6, so that the movable column 6 can move under the action of the sliding plate 5, and the movable column 6 is made to reciprocate by the spring 4, thereby effectively preventing the oil and gas from entering the pipe 3 and being blocked by ice, thereby improving the oil and gas separation rate; at the same time, a super-hydrophobic and super-oleophilic material block 10 is placed in the cold trap for water-oil separation to ensure the quality of water-oil separation; combined with the centrifugal principle and gravity, the reuse of the super-hydrophobic and super-oleophilic material block 10 can be ensured, thereby reducing costs and improving cost performance.

[0026] The present invention is not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope of the present invention. The scope of the present invention is limited only by the appended claims.

Claims

1. A cold trap optimization device for hydrocarbon generation simulation experiments, comprising a cold trap and an oil and gas inlet pipe, characterized in that: It also includes a driving motor, a rotating shaft and an elliptical wheel. The output end of the driving motor is fixedly connected to the rotating shaft, and the outer ring of the rotating shaft is fixedly installed with an elliptical wheel. One side of the elliptical wheel is connected to a movable column perpendicular to the rotating shaft. An oil and gas inlet is provided on the movable column, and the cold trap is connected to the oil and gas inlet. A fixed plate is provided on one side of the oil and gas inlet pipe. A support plate is welded to the outer ring of the fixed plate, and one side of the support plate is welded to the inner wall of the oil and gas inlet pipe for supporting the fixed plate. A spring is welded to the surface of the fixed plate away from the support plate, and the other end of the spring is fixedly connected to the movable column, and a sliding plate is provided on the outer ring of the movable column.

2. A cold trap optimization device for hydrocarbon generation simulation experiments according to claim 1, characterized in that: The cold trap is connected to the oil and gas inlet via a connector.

3. The cold trap optimization device for hydrocarbon generation simulation experiment according to claim 1, characterized in that: A groove is provided on one side of the elliptical wheel close to the movable column, and the movable column is installed in the groove.

4. The cold trap optimization device for hydrocarbon generation simulation experiment according to claim 1, characterized in that: A super-hydrophobic and super-oleophilic material block is placed at the bottom of the cold trap for water-oil separation.

5. The cold trap optimization device for hydrocarbon generation simulation experiment according to claim 1, characterized in that: The inner wall of the oil and gas inlet pipe is provided with a limiting groove, and the side of the sliding plate away from the movable column is located in the limiting groove.

6. The cold trap optimization device for hydrocarbon generation simulation experiment according to claim 1, characterized in that: The oil and gas inlet is located between the sliding plate and the oval wheel on the movable column.

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