Carbon dioxide gas recovery equipment

Abstract

The utility model relates to the technical field of carbon dioxide gas recovery, in particular to carbon dioxide gas recovery equipment which comprises a reaction tank body, a cooling shell is installed on the outer side of the reaction tank body, a heat exchange pipe is arranged in the cooling shell, one end of the heat exchange pipe is connected with a gas feeding pipe, and a rod body is installed in the reaction tank body. A branch pipe is installed on the outer side of the rod body, a separation disc is further arranged on the inner wall of the reaction tank body, a reaction box is installed on the inner side of the separation disc, and second concentrated sulfuric acid is stored in the reaction box. According to the scheme, heat waste in the heat exchange process is reduced, internal liquid is prevented from being crystallized in a low-temperature environment, the possibility that moisture remains in gas obtained after dehumidification is completed is reduced, the energy utilization rate of the device is increased, the device can be used in different environments, and the energy utilization rate of the device is increased. The waste gas dehydration efficiency and the dual dehydration effect of the device are also improved.

Description

Technical Field

[0001] This utility model relates to the field of carbon dioxide gas recovery technology, and in particular to a carbon dioxide gas recovery device. Background Technology

[0002] Carbon dioxide gas recovery equipment is used to capture and recover carbon dioxide from industrial waste gases, combustion processes, or other emission sources to reduce greenhouse gas emissions and enable resource reuse. These devices are widely used in power plants, chemical plants, steel mills, cement plants, and other similar facilities.

[0003] Chinese patent CN222034223U discloses a carbon dioxide gas recovery device. The device cools the gas through a cooling box and removes moisture from the gas through a mixing and dehumidifying box. The rotation of the main conveyor roller enables better contact between the gas and concentrated sulfuric acid. The device has a simple structure and is easy to use, but the overall size of the device is large and occupies a lot of space. In addition, the contact time between the gas and concentrated sulfuric acid is short, which can easily lead to insufficient dehumidification time. Therefore, a small amount of moisture may still remain in the gas. To address this, a carbon dioxide gas recovery device is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a carbon dioxide gas recovery device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A carbon dioxide gas recovery device includes a reaction vessel, a cooling shell installed on the outside of the reaction vessel, a heat exchange tube installed inside the cooling shell, one end of the heat exchange tube being connected to a gas supply pipe, a rod installed inside the reaction vessel, a branch pipe installed on the outside of the rod, a partition plate installed on the inner wall of the reaction vessel, a reaction box installed inside the partition plate, and a second concentrated sulfuric acid stored in the reaction box.

[0007] Preferably, the cooling shell is installed around the outer surface of the reaction vessel, with a drain port at the bottom and a cooling port at the top, and cooling liquid continuously flowing between the drain port and the cooling port.

[0008] Preferably, the heat exchange tube is installed around the cooling shell, and the cooling shell has an air inlet and an air outlet at its bottom and top, respectively. The two ends of the heat exchange tube are connected to the air inlet and the air outlet, and waste gas flows through the heat exchange tube.

[0009] Preferably, an inlet is located at the center of the top surface of the reaction vessel, and the gas supply pipe is connected between the outlet and the inlet. The rod is rotatably connected between the top and bottom surfaces of the reaction vessel. A toothed plate is installed on the outer surface of the top of the rod. A motor is installed on the reaction vessel, and a toothed plate is also installed on the output end of the motor. The two toothed plates mesh with each other. The rod is a hollow tube, and the rod is connected to the gas supply pipe. Multiple branch pipes are provided, all arranged and installed on the outer surface of the bottom end of the rod. Each branch pipe has a venting groove. The reaction vessel contains concentrated sulfuric acid.

[0010] Preferably, the separator is fixedly installed on the inner wall of the reaction vessel. The reaction box includes an outer ring, an inner ring, a base, and a protective sleeve. The protective sleeve is fixed at the center of the base. The rod is connected inside the protective sleeve. The outer ring is fixedly installed on the outer ring of the base. The inner ring is also fixed on the base and is located between the protective sleeve and the outer ring.

[0011] Preferably, both the outer ring and the inner ring are provided with corresponding air holes, and a delivery pipe is fixedly installed between two corresponding air holes. The second concentrated sulfuric acid is placed between the protective sleeve and the reaction box, and the reaction tank is also provided with an exhaust port.

[0012] The beneficial effects of this utility model are:

[0013] This solution uses the combination of cooling shell and heat exchange tube to cool the gas, and the heat-absorbing liquid can heat the reaction vessel. The heated concentrated sulfuric acid can improve its dehydration efficiency and prevent sulfuric acid crystallization in some colder environments. The reaction box can be used to perform secondary dehumidification on the dehumidified gas to ensure that there is no residual moisture in the gas.

[0014] This solution reduces heat waste during the heat exchange process and prevents the internal liquid from crystallizing in a low-temperature environment. It also reduces the possibility of residual moisture in the dehumidified gas, improves the energy utilization rate of the device, and can be used in different environments. Furthermore, it improves the device's efficiency in dehydrating waste gas and the effect of dual dehydration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a carbon dioxide gas recovery device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of a carbon dioxide gas recovery device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of a carbon dioxide gas recovery device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of a carbon dioxide gas recovery device proposed in this utility model.

[0019] In the diagram: 1. Reaction vessel; 2. Motor; 3. Exhaust port; 4. Gas supply pipe; 5. Cooling port; 6. Cooling shell; 7. Gas inlet; 8. Liquid outlet; 9. Divider plate; 10. Delivery pipe; 11. Heat exchanger pipe; 12. Branch pipe; 13. Protective sleeve; 14. Reaction box; 15. Vent; 16. Rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example: Refer to Figure 1-4 A carbon dioxide gas recovery device includes a reaction tank 1, a cooling shell 6 installed on the outside of the reaction tank 1, a heat exchange tube 11 installed inside the cooling shell 6, one end of the heat exchange tube 11 connected to a gas supply pipe 4, a rod 16 installed inside the reaction tank 1, a branch pipe 12 installed on the outside of the rod 16, a partition plate 9 installed on the inner wall of the reaction tank 1, a reaction box 14 installed inside the partition plate 9, and a second concentrated sulfuric acid stored in the reaction box 14. The cooling shell 6 is installed around the outer surface of the reaction tank 1, a drain port 8 is opened at the bottom of the cooling shell 6, and a cooling port 5 is opened at the top of the cooling shell 6. Cooling liquid flows continuously between the drain port 8 and the cooling port 5 to cool the waste gas in the heat exchange tube 11.

[0022] Specifically, the heat exchange tube 11 is installed around the cooling shell 6. The cooling shell 6 has an air inlet 7 and an air outlet at its bottom and top, respectively. The two ends of the heat exchange tube 11 are connected to the air inlet 7 and the air outlet. Waste gas flows through the heat exchange tube 11 to facilitate the gradual rise of the waste gas and the exchange of heat during the rise.

[0023] Furthermore, an air inlet is located at the center of the top surface of the reaction tank 1. An air supply pipe 4 is connected between the air outlet and the air inlet to facilitate the input of gas into the reaction tank 1 for dehumidification. A rod 16 is rotatably connected between the inner top and inner bottom surfaces of the reaction tank 1. A toothed plate is installed on the outer surface of the top of the rod 16. A motor 2 is installed on the reaction tank 1, and a toothed plate is also installed on the output end of the motor 2. The two toothed plates mesh with each other to continuously rotate the branch pipe 12, reducing the phenomenon of uneven reaction. The rod 16 is a hollow tube and is connected to the air supply pipe 4. Multiple branch pipes 12 are provided, all arranged and installed on the outer surface of the bottom end of the rod 16. Each branch pipe 12 has a ventilation groove. The reaction tank 1 contains concentrated sulfuric acid to perform the first dehydration of the waste gas.

[0024] In this embodiment, the separator 9 is fixedly installed on the inner wall of the reaction vessel 1 to separate the gas. The reaction box 14 includes an outer ring, an inner ring, a base and a protective sleeve 13. The protective sleeve 13 is fixed at the center of the base. The rod 16 is connected inside the protective sleeve 13. The outer ring is fixedly installed on the outer ring of the base, and the inner ring is also fixed on the base. It is located between the protective sleeve 13 and the outer ring to protect the rod 16 and reduce the possibility of direct contact with concentrated sulfuric acid.

[0025] Both the outer and inner rings are provided with corresponding air holes 15. A conveying pipe 10 is installed at an angle between two corresponding air holes 15 to prevent liquid backflow. The second concentrated sulfuric acid is placed between the protective sleeve 13 and the reaction box 14. An exhaust port 3 is also provided on the reaction tank 1.

[0026] Working principle: The external coolant pipe is connected between the drain port 8 and the cooling port 5 for continuous liquid transportation. The exhaust gas is introduced from the air inlet 7 and transported along the heat exchange pipe 11. Then it enters the rod body 16 from the air supply pipe 4 and is discharged from the branch pipe 12 at the bottom. It reacts with the first concentrated sulfuric acid. At the same time, the motor 2 is controlled to rotate, and the rod body 16 will start to rotate, so that the gas is evenly dehumidified in the concentrated sulfuric acid. After the dehumidification is completed, the gas will flow upward and enter the delivery pipe 10 through the air hole 15. Then it is input into the second concentrated sulfuric acid for secondary dehumidification. Finally, it is discharged from the exhaust port 3.

[0027] During the heat exchange process, the heat will be concentrated on the bottom side of the reaction vessel 1, which will have a better heating effect on the first concentrated sulfuric acid, thereby improving its dehydration efficiency and preventing crystallization in a low-temperature environment.

[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A carbon dioxide gas recovery device, characterized in that, include: The reaction vessel (1) has a cooling shell (6) installed on its outer side. A heat exchange tube (11) is installed inside the cooling shell (6). One end of the heat exchange tube (11) is connected to a gas supply pipe (4). A rod (16) is installed inside the reaction vessel (1). A branch pipe (12) is installed on the outer side of the rod (16). A partition plate (9) is also installed on the inner wall of the reaction vessel (1). A reaction box (14) is installed on the inner side of the partition plate (9). The reaction box (14) contains a second concentrated sulfuric acid.

2. The carbon dioxide gas recovery device according to claim 1, characterized in that, The cooling shell (6) is mounted around the outer surface of the reaction vessel (1). A drain port (8) is provided at the bottom of the cooling shell (6), and a cooling port (5) is provided at the top of the cooling shell (6). Cooling liquid flows continuously between the drain port (8) and the cooling port (5).

3. The carbon dioxide gas recovery device according to claim 2, characterized in that, The heat exchange tube (11) is installed around the cooling shell (6). The cooling shell (6) has an air inlet (7) and an air outlet at its bottom and top, respectively. The two ends of the heat exchange tube (11) are connected to the air inlet (7) and the air outlet. Waste gas flows through the heat exchange tube (11).

4. A carbon dioxide gas recovery device according to claim 3, characterized in that, The reaction vessel (1) has an inlet end at the center of its top surface. The gas supply pipe (4) is connected between the outlet and the inlet end. The rod (16) is rotatably connected between the top and bottom surfaces of the reaction vessel (1). A toothed plate is installed on the outer surface of the top of the rod (16). A motor (2) is installed on the reaction vessel (1). A toothed plate is also installed on the output end of the motor (2). The two toothed plates mesh with each other. The rod (16) is a hollow tube. The rod (16) is connected to the gas supply pipe (4). Multiple branch pipes (12) are provided and are arranged on the outer surface of the bottom end of the rod (16). Each branch pipe (12) has a ventilation groove. The reaction vessel (1) contains concentrated sulfuric acid.

5. A carbon dioxide gas recovery device according to claim 4, characterized in that, The separator plate (9) is fixedly installed on the inner wall of the reaction vessel (1). The reaction box (14) includes an outer ring, an inner ring, a base and a protective sleeve (13). The protective sleeve (13) is fixed at the center of the base. The rod (16) is connected inside the protective sleeve (13). The outer ring is fixedly installed on the outer ring of the base. The inner ring is also fixed on the base and is located between the protective sleeve (13) and the outer ring.

6. A carbon dioxide gas recovery device according to claim 5, characterized in that, Both the outer ring and the inner ring are provided with corresponding air holes (15), and a conveying pipe (10) is fixedly installed between the two corresponding air holes (15). The second concentrated sulfuric acid is placed between the protective sleeve (13) and the reaction box (14). The reaction tank (1) is also provided with an exhaust port (3).

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