Device for recovering carbon dioxide tail gas after purification and decarburization of biogas

Abstract

The utility model discloses a device for recovering carbon dioxide tail gas after methane purification and decarburization, which comprises a shell, a gas inlet pipe is fixed on one side of the shell, a first clamping sleeve is sleeved on the outer side of the gas inlet pipe, a first rotating shaft is movably connected with one side of the first clamping sleeve, and a second clamping sleeve is movably connected with one side of the first rotating shaft. One side of the second clamping sleeve is movably connected with a second rotating shaft, and the outer side of the second rotating shaft is sleeved with a bolt. According to the device for recycling the carbon dioxide tail gas after biogas purification and decarbonization, through arrangement of a first clamping sleeve, a first sealing ring, a first rotating shaft, a second clamping sleeve, a second rotating shaft, a bolt and a knob, the first clamping sleeve and the second clamping sleeve are fixed by rotating the knob in the using process of the device, so that the first sealing ring is in attached contact with a pipeline joint; the tightness of the pipeline joint is guaranteed, the possibility that carbon dioxide tail gas leaks from the pipeline joint is reduced, and the environment is prevented from being damaged by the carbon dioxide tail gas.

Description

Technical Field

[0001] The utility model relates to the technical field related to biogas purification, in particular to a device for recovering carbon dioxide tail gas after biogas purification and decarbonization. Background Art

[0002] Biogas purification is the process of removing impurities from biogas and increasing the methane content so that it can meet the requirements of applications such as fuel and power generation. After purification, biogas can replace fossil natural gas and be used for vehicle fuel, residential gas, etc. It is a clean distributed energy source. During the biogas purification process, the carbon dioxide in the biogas will be separated to form carbon dioxide exhaust gas, which needs to be treated with a carbon dioxide exhaust gas recovery device to reduce greenhouse gas emissions and improve air quality.

[0003] After long-term use, the tightness of the pipe connection of the existing biogas purification and decarbonization carbon dioxide tail gas recovery device is likely to decrease, and the carbon dioxide tail gas is likely to leak from the pipe connection and cause damage to the environment. Therefore, it is necessary to propose a biogas purification and decarbonization carbon dioxide tail gas recovery device. Utility Model Content

[0004] The purpose of the utility model is to provide a device for recovering carbon dioxide tail gas after biogas purification and decarbonization, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a device for recovering carbon dioxide tail gas after biogas purification and decarbonization, comprising a shell, an air inlet pipe is fixed on one side of the shell, a first ferrule is sleeved on the outer side of the air inlet pipe, a first rotating shaft is movably connected to one side of the first ferrule, a second ferrule is movably connected to one side of the first rotating shaft, a second ferrule is movably connected to one side of the second rotating shaft, a bolt is sleeved on the outer side of the second rotating shaft, a knob is sleeved on one side of the bolt, an air outlet pipe is fixed above the shell, a first water tank is fixed on the other side of the shell, a first water pump is installed on one side of the first water tank, a first water pipe is fixed above the first water pump, a spray head is fixed on one end of the first water pipe, a filling barrel is fixed below the spray head, a filter plate is fixed below the filling barrel, a motor is installed below the filter plate, and an agitator is installed at the output end above the motor.

[0006] Preferably, a first sealing ring is provided inside the first ferrule, and the first sealing ring is in close contact with the air inlet pipe.

[0007] Preferably, the second ferrule forms a rotating structure with the first ferrule through the first rotating shaft, and the shapes of the first ferrule and the second ferrule are consistent.

[0008] Preferably, the bolt forms a rotating structure with the second sleeve via the second rotating shaft, and the second sleeve is threadedly connected to the first sleeve via the bolt.

[0009] Preferably, the stirring block forms a rotating structure through a motor and a filter plate, and the motor and the stirring block are used in conjunction with each other.

[0010] Preferably, a temperature-controlled water pipe is fixed inside the shell, a second water pump is fixed to one end of the temperature-controlled water pipe, a water inlet pipe is fixed to one side of the second water pump, a water outlet pipe is installed at the other end of the temperature-controlled water pipe, a connector is movably connected to one end of the water outlet pipe, and a second sealing ring is provided inside the connector.

[0011] Preferably, the temperature-controlling water pipe is threadedly connected to the water outlet pipe via a connector, and the temperature-controlling water pipe is arranged in a spiral structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization comprises a first ferrule, a first sealing ring, a first rotating shaft, a first ferrule, a second rotating shaft, a bolt and a knob. During the use of the device, the first ferrule is fixed to the first ferrule by rotating the knob, so that the first sealing ring is in close contact with the pipe connection, thereby ensuring the tightness of the pipe connection, reducing the possibility of leakage of carbon dioxide tail gas from the pipe connection, and avoiding damage to the environment caused by carbon dioxide tail gas;

[0014] 2. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization, through the arrangement of the filter plate, the motor and the stirring block, during the use of the device, by turning on the switch of the motor, the stirring block is rotated on the filter plate, so as to prevent the flow of carbon dioxide tail gas from being blocked due to the clogging of the filler on the filter plate, resulting in a decrease in the absorption efficiency of carbon dioxide tail gas, promote the uniform distribution and movement of the filler in the filler barrel, so that the absorbent on the filler is fully in contact with the carbon dioxide tail gas, so as to improve the absorption efficiency of carbon dioxide tail gas;

[0015] 3. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization is provided with a temperature-controlled water pipe, a second water pump, a water inlet pipe and a water outlet pipe. During the use of the device, the switch of the second water pump is turned on to allow water in the water inlet pipe to enter the temperature-controlled water pipe, thereby controlling the temperature of the device, increasing the solubility of carbon dioxide tail gas in the absorbent, and thus improving the absorption efficiency of carbon dioxide tail gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell of the utility model;

[0018] Figure 3 This is a schematic diagram of the first ferrule structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the filler barrel of the utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the connector of the utility model.

[0021] In the figure: 1. housing; 2. air inlet pipe; 3. first ferrule; 4. first sealing ring; 5. first rotating shaft; 6. second ferrule; 7. second rotating shaft; 8. bolt; 9. knob; 10. air outlet pipe; 11. first water tank; 12. first water pump; 13. first water pipe; 14. sprinkler head; 15. stuffing barrel; 16. filter plate; 17. motor; 18. stirring block; 19. temperature control water pipe; 20. second water pump; 21. water inlet pipe; 22. water outlet pipe; 23. connector; 24. second sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5The utility model provides a technical solution: a device for recovering carbon dioxide tail gas after biogas purification and decarbonization, comprising a shell 1, an air inlet pipe 2 is fixed on one side of the shell 1, a first ferrule 3 is sleeved on the outer side of the air inlet pipe 2, a first sealing ring 4 is sleeved inside the first ferrule 3, the first sealing ring 4 is in close contact with the air inlet pipe 2, the first sealing ring 4 is in close contact with the pipe connection, and the tightness of the pipe connection is ensured, a first rotating shaft 5 is movably connected to one side of the first rotating shaft 5, a second ferrule 6 is movably connected to one side of the first rotating shaft 5, the second ferrule 6 forms a rotating structure with the first ferrule 3 through the first rotating shaft 5, the shapes of the first ferrule 3 and the second ferrule 6 are consistent, and the first ferrule 3 can be rotated to fix the first sealing ring 4 on the first ferrule 3 and the groove of the second ferrule 6, one side of the second ferrule 6 is movably connected with a second shaft 7, the outer side of the second shaft 7 is sleeved with a bolt 8, one side of the bolt 8 is sleeved with a knob 9, the bolt 8 forms a rotating structure with the second ferrule 6 through the second shaft 7, the second ferrule 6 is threadedly connected with the first ferrule 3 through the bolt 8, and the first ferrule 3 is fixed to the first ferrule 3 by rotating the knob 9, which reduces the possibility of carbon dioxide exhaust gas leaking from the pipeline connection and avoids the damage to the environment caused by carbon dioxide exhaust gas. An outlet pipe 10 is fixed above the shell 1, and a first water tank 11 is fixed on the other side of the shell 1. A first water pump 12 is installed on one side of the first water tank 11, and a first water pipe 13 is fixed above the first water pump 12. A spray head 14 is fixed at one end of the tube 13, a filling barrel 15 is fixed below the spray head 14, a filter plate 16 is fixed below the filling barrel 15, a motor 17 is installed below the filter plate 16, a stirring block 18 is installed at the output end above the motor 17, the stirring block 18 forms a rotating structure with the filter plate 16 through the motor 17, the motor 17 and the stirring block 18 are used in conjunction with each other, and the stirring block 18 is rotated on the filter plate 16 by turning on the switch of the motor 17, so as to prevent the flow of carbon dioxide tail gas from being blocked due to the clogging of the filler on the filter plate 16, resulting in a decrease in the absorption efficiency of carbon dioxide tail gas, and promote the uniform distribution and movement of the filler in the filling barrel 15, so that the absorbent on the filler is fully in contact with the carbon dioxide tail gas, so as to improve the absorption efficiency of carbon dioxide tail gas. In order to improve the absorption efficiency of carbon tail gas, a temperature-controlled water pipe 19 is fixed inside the shell 1, and a second water pump 20 is fixed at one end of the temperature-controlled water pipe 19, and a water inlet pipe 21 is fixed at one side of the second water pump 20, and a water outlet pipe 22 is installed at the other end of the temperature-controlled water pipe 19, and a connector 23 is movably connected to one end of the water outlet pipe 22, and a second sealing ring 24 is sleeved inside the connector 23. The temperature-controlled water pipe 19 is threadedly connected to the water outlet pipe 22 through the connector 23. The temperature-controlled water pipe 19 is arranged in a spiral structure. By turning on the switch of the second water pump 20, the water in the water inlet pipe 21 enters the temperature-controlled water pipe 19, and the temperature of the device is controlled to increase the solubility of carbon dioxide tail gas in the absorbent, thereby improving the absorption efficiency of carbon dioxide tail gas.

[0024] Working principle: when using the device for recovering carbon dioxide tail gas after biogas purification and decarbonization, first connect the external power supply, then turn on the switch of the second water pump 20, so that the water in the water inlet pipe 21 enters the temperature control water pipe 19, and the temperature of the device is controlled, turn on the switch of the first water pump 12, and spray the absorbent from the first water tank 11 through the spray head 14 on the filler in the filler barrel 15, and form a liquid film on the filler, and the carbon dioxide tail gas enters from the air inlet pipe 2, contacts with the liquid film in countercurrent, and absorbs the carbon dioxide tail gas, turn on the switch of the motor 17, and make the stirring block 18 rotate on the filter plate 16 to prevent the flow of carbon dioxide tail gas from being blocked due to the clogging of the filler on the filter plate 16, and cut off the external power supply of the device when not in use, the model of the first water pump 12 is jpzyb-1, the model of the motor 17 is 5IK120GU-CT, and the model of the second water pump 20 is ZXZYB-3, and the use process of the device for recovering carbon dioxide tail gas after biogas purification and decarbonization is completed.

[0025] 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 recovering carbon dioxide tail gas after biogas purification and decarbonization, comprising a housing (1), characterized in that: An air inlet pipe (2) is fixed to one side of the shell (1), a first clamping sleeve (3) is sleeved on the outer side of the air inlet pipe (2), a first rotating shaft (5) is movably connected to one side of the first clamping sleeve (3), a second clamping sleeve (6) is movably connected to one side of the first rotating shaft (5), a second clamping sleeve (6) is movably connected to one side of the second rotating shaft (7), a bolt (8) is sleeved on the outer side of the second rotating shaft (7), a knob (9) is sleeved on one side of the bolt (8), an air outlet pipe (10) is fixed to the top of the shell (1), and the shell ( 1) is fixed to the other side of a first water tank (11), a first water pump (12) is installed on one side of the first water tank (11), a first water pipe (13) is fixed above the first water pump (12), a spray head (14) is fixed at one end of the first water pipe (13), a filling barrel (15) is fixed below the spray head (14), a filter plate (16) is fixed below the filling barrel (15), a motor (17) is installed below the filter plate (16), and an agitator block (18) is installed at the output end above the motor (17).

2. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization according to claim 1, characterized in that: A first sealing ring (4) is sleeved inside the first ferrule (3), and the first sealing ring (4) is in close contact with the air inlet pipe (2).

3. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization according to claim 1, characterized in that: The second ferrule (6) forms a rotating structure with the first ferrule (3) via the first rotating shaft (5); the first ferrule (3) and the second ferrule (6) have the same shape.

4. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization according to claim 1, characterized in that: The bolt (8) forms a rotating structure with the second clamping sleeve (6) through the second rotating shaft (7), and the second clamping sleeve (6) is threadedly connected to the first clamping sleeve (3) through the bolt (8).

5. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization according to claim 1, characterized in that: The stirring block (18) forms a rotating structure with the filter plate (16) through the motor (17), and the motor (17) and the stirring block (18) are used in coordination.

6. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization according to claim 1, characterized in that: A temperature-control water pipe (19) is fixed inside the housing (1), a second water pump (20) is fixed to one end of the temperature-control water pipe (19), a water inlet pipe (21) is fixed to one side of the second water pump (20), a water outlet pipe (22) is installed at the other end of the temperature-control water pipe (19), a connector (23) is movably connected to one end of the water outlet pipe (22), and a second sealing ring (24) is sleeved inside the connector (23).

7. The device for recovering carbon dioxide tail gas after biogas purification and decarbonization according to claim 6, characterized in that: The temperature-controlling water pipe (19) is threadedly connected to the water outlet pipe (22) via a connector (23), and the temperature-controlling water pipe (19) is arranged in a spiral structure.

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