Oil gas recycling device

Abstract

The utility model provides an oil gas recycling device. A heat exchanger is arranged on the upper portion of the left side of a shell, an oil gas inlet pipe is connected to the heat exchanger, a recycling box is arranged below the heat exchanger and connected with the heat exchanger, a centrifugal compressor supplies cold to the heat exchanger, and the centrifugal compressor is arranged at the bottom of the right side of a vertical plate. An oil return pump is arranged on the lower portion of the recycling box, an inlet pipe of the oil return pump is communicated with the recycling box, and an oil return pipe of the oil return pump is connected with the oil pipe. A carbon tank is further arranged in the middle of the right side of the vertical plate and communicated with an air outlet pipe of the heat exchanger, an oil return pipe of the carbon tank is connected with a recycling box and provided with a self-priming pump, and an exhaust pipe is arranged on the top of the carbon tank.

Description

Technical Field

[0001] The utility model relates to the field of oil and gas recovery, and in particular to an oil and gas recovery and utilization device. Background Art

[0002] The emission of volatile organic compounds (VOCs) from oil and gas is a major source of environmental pollution. These emissions not only pollute the atmosphere and increase greenhouse gas emissions, but can also lead to resource waste. Therefore, effectively controlling and reducing oil and gas emissions during production and use has become a major challenge for the energy industry. Utility Model Content

[0003] The utility model is based on the above technical problems and proposes an oil and gas recovery and utilization device.

[0004] An oil and gas recovery and utilization device comprises: a shell, a vertical plate is provided in the middle of the shell, a plurality of partition plates are provided between the vertical plate and the shell to divide the interior of the shell into a plurality of independent chambers, a heat exchanger is provided on the upper left side of the shell, an oil and gas inlet pipe is connected to the heat exchanger, a recovery box is provided below the heat exchanger, the recovery box is connected to the heat exchanger, the heat exchanger is cooled by a centrifugal compressor, and the centrifugal compressor is arranged at the bottom of the right side of the vertical plate; an oil return pump is provided at the lower part of the recovery box, the inlet pipe of the oil return pump is connected to the recovery box, and the return oil pipe of the oil return pump is connected to the oil pipe; a carbon canister is also provided in the middle of the right side of the vertical plate, the carbon canister is connected to the outlet pipe of the heat exchanger, the return oil pipe of the carbon canister is connected to the recovery box, a self-priming pump is provided on the return oil pipe, and an exhaust pipe is provided on the top of the carbon canister.

[0005] Preferably, an openable and closable cabinet door is provided on the front side of the shell, and an opening is provided at a position of the cabinet door directly opposite to the exhaust port of the centrifugal compressor.

[0006] Preferably, a tail recovery device is provided at the outer end of the exhaust pipe, and the tail recovery device is a membrane recovery device, which further improves the efficiency and thoroughness of oil and gas recovery.

[0007] Preferably, the tail recoverer includes a recovery cover and a connecting pipe. An air hole is provided in the middle of the bottom plate of the recovery cover. The connecting pipe is arranged on the outside of the air hole, and the connecting pipe is connected to the exhaust pipe; the bottom plate is an arched structure with a high middle and low sides. The air hole passes through the bottom plate. An oil film is provided in the middle of the recovery cover. The oil film is a breathable film and can block the passage of oil and gas molecules. The oil film is also an arched film with a high middle and low sides. An exhaust hole is provided on the top plate of the recovery cover. This structural design can effectively capture and recover residual oil and gas.

[0008] Preferably, a sealing groove is provided between the air hole and the connecting pipe, a sealing gasket is provided in the sealing groove, and the upper end of the exhaust pipe can be inserted into the sealing groove to ensure the sealing of the connection and prevent oil and gas leakage.

[0009] Beneficial effects:

[0010] 1. The device of this utility model has a compact structure, is easy to operate, and has low maintenance cost, which is beneficial to reducing the overall oil and gas recovery cost;

[0011] 2. The combined use of heat exchangers and centrifugal compressors can effectively reduce the oil and gas temperature and improve the oil and gas condensation efficiency, thereby achieving efficient oil and gas recovery;

[0012] 3. A tail recovery device is set at the exhaust pipe. As the final recovery device, the tail recovery device can recover the thin oil and gas in the exhaust gas. The amount of oil recovered by the tail recovery device can be used to observe the efficiency of oil and gas recovery inside the shell. According to the result, the recovery structure inside the shell is adjusted to improve the overall recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shows a schematic structural diagram of the utility model;

[0014] Figure 2 Shows the structure of the tail collector Figure 1 ;

[0015] Figure 3 Shows the structure of the tail collector Figure 2 ;

[0016] Figure 4 The internal structure diagram of the tail recycler is shown;

[0017] In the figure: 1. Outer shell; 2. Vertical plate; 3. Partition plate; 4. Heat exchanger; 5. Oil and gas inlet pipe; 6. Recovery box; 7. Centrifugal compressor; 8. Oil return pump; 9. Carbon canister; 10. Oil drain pipe; 11. Exhaust pipe; 12. Cabinet door; 13. Tail collector; 14. Recovery cover; 15. Connecting pipe; 16. Air hole; 17. Oil film; 18. Exhaust hole; 19. Sealing groove; 20. Bottom plate. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0019] like Figures 1 to 4As shown, an oil and gas recovery and utilization device includes a shell 1, a vertical plate 2 is provided in the middle of the shell 1, and several partition plates 3 are provided between the vertical plate 2 and the shell 1 to divide the interior of the shell 1 into multiple independent chambers; a heat exchanger 4 is provided on the upper left side of the shell 1, and an oil and gas inlet pipe 5 is connected to the heat exchanger 4, and a recovery box 6 is provided below the heat exchanger 4, and the recovery box 6 is connected to the heat exchanger 4. The heat exchanger 4 is cooled by a centrifugal compressor 7, and the centrifugal compressor 7 is arranged at the bottom of the right side of the vertical plate 2; a return oil pump 8 is provided at the lower part of the recovery box 6, and the inlet pipe of the return oil pump 8 is connected to the recovery box 6, and the return oil pipe of the return oil pump 8 is connected to the oil pipe; a carbon canister 9 is also provided in the middle of the right side of the vertical plate 2, and the carbon canister 9 is connected to the outlet pipe of the heat exchanger 4, and the return oil pipe of the carbon canister 9 is connected to the recovery box 6. A self-priming pump is provided on the return oil pipe, and the self-priming pump can be arranged in the carbon canister 9. An exhaust pipe 11 is provided on the top of the carbon canister 9.

[0020] An openable and closable cabinet door 12 is provided on the front side of the housing 1 , and an opening is provided at a position where the cabinet door 12 is directly opposite to the exhaust port of the centrifugal compressor 7 .

[0021] like Figure 2 As shown, a tail recoverer 13 is provided at the outer end of the exhaust pipe 11, and the tail recoverer 13 includes a recovery cover 14 and a connecting pipe 15. An air hole 16 is provided in the middle of the bottom plate 20 of the recovery cover 14, and the connecting pipe 15 is arranged on the outside of the air hole 16, and the connecting pipe 15 is connected with the exhaust pipe 11; the bottom plate 20 is an arched structure with a high middle and low sides, and the air hole 16 passes through the bottom plate 20. An oil film 17 is provided in the middle of the recovery cover 14. The oil film 17 is a breathable film and can block the passage of oil and gas molecules. The oil film 17 is also an arched film with a high middle and low sides. An exhaust hole 18 is provided on the top plate of the recovery cover 14; a sealing groove 19 is provided between the air hole 16 and the connecting pipe 15, and a sealing gasket is provided in the sealing groove 19. The upper end of the exhaust pipe 11 can be inserted into the sealing groove 19.

[0022] In the tail recovery device 13, the oil film 17 is set to an arch structure, so that the recovered oil can drip from the edge along the oil film 17 onto the bottom plate 20. In order to prevent the oil from flowing into the exhaust pipe 11, the bottom plate 20 is set to an arch structure, so the oil will flow into the side of the bottom plate 20. An oil drain pipe 10 can be set on the side of the bottom plate 20, and the oil inlet of the oil drain pipe 10 is located on the upper side of the bottom plate 20.

[0023] During use, the oil and gas enter the heat exchanger 4 through the oil and gas inlet pipe 5 for cooling. The condensed oil and gas flow into the recovery box 6, and the uncondensed oil and gas enter the carbon canister 9 for further adsorption. The adsorbed gas is discharged through the exhaust pipe 11, and the remaining oil and gas is further recovered in the tail recovery device 13.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An oil and gas recovery and utilization device, comprising: The shell has a vertical plate in the middle part, and a number of partition plates are provided between the vertical plate and the shell to divide the interior of the shell into a plurality of independent chambers, and is characterized in that a heat exchanger is provided on the upper left part of the shell, an oil and gas inlet pipe is connected to the heat exchanger, a recovery box is provided below the heat exchanger, the recovery box is connected to the heat exchanger, the heat exchanger is cooled by a centrifugal compressor, and the centrifugal compressor is arranged at the bottom of the right side of the vertical plate; an oil return pump is provided at the lower part of the recovery box, the inlet pipe of the oil return pump is connected to the recovery box, and the return oil pipe of the oil return pump is connected to the oil pipe; a carbon canister is also provided in the middle part of the right side of the vertical plate, the carbon canister is connected to the outlet pipe of the heat exchanger, the return oil pipe of the carbon canister is connected to the recovery box, a self-priming pump is provided on the return oil pipe, and an exhaust pipe is provided on the top of the carbon canister.

2. The oil and gas recovery and utilization device according to claim 1, characterized in that: The front side of the shell is provided with an openable and closable cabinet door, and the cabinet door is provided with an opening at a position directly opposite to the exhaust port of the centrifugal compressor.

3. The oil and gas recovery and utilization device according to claim 1, characterized in that: The outer end of the exhaust pipe is provided with a tail recovery device, and the tail recovery device is a membrane recovery device.

4. The oil and gas recovery and utilization device according to claim 3, characterized in that: The tail recoverer includes a recovery cover and a connecting pipe. An air hole is provided in the middle of the bottom plate of the recovery cover. The connecting pipe is arranged on the outside of the air hole, and the connecting pipe is connected to the exhaust pipe. The bottom plate is an arched structure with a high middle and low sides. The air hole passes through the bottom plate. An oil film is provided in the middle of the recovery cover. The oil film is a breathable film and can block the passage of oil and gas molecules. The oil film is also an arched film with a high middle and low sides. An exhaust hole is provided on the top plate of the recovery cover.

5. The oil and gas recovery and utilization device according to claim 4, characterized in that: A sealing groove is provided between the air hole and the connecting pipe, a sealing gasket is provided in the sealing groove, and the upper end of the exhaust pipe can be inserted into the sealing groove.

Images