Equipment for rapidly testing performance of carbon capture chemical absorbent

Abstract

The utility model provides rapid performance testing equipment for a carbon capture chemical absorbent, which comprises a cylinder body, a filler layer is filled in the cylinder body, the bottom end of the cylinder body is provided with a gas inlet mechanism used for spraying gas upwards into the cylinder body, and a gas outlet mechanism is arranged at the bottom end of the cylinder body. A spraying mechanism for spraying liquid to the surface of the filler layer is mounted at the top end of the barrel; the spraying mechanism comprises an air inlet pipe, a plurality of connecting pipes are installed on the side wall of the air inlet pipe, spraying pipes are rotationally connected into the connecting pipes, a plurality of spray heads are installed at the bottom ends of the spraying pipes, the spray heads are tangent to the side walls of the spraying pipes, and the rotating directions of the adjacent spraying pipes are opposite; a testing mechanism for testing the performance of the chemical absorbent is mounted on the side wall of the cylinder body, and a cleaning mechanism for cleaning the filler layer is mounted in the cylinder body. The device for rapidly testing the performance of the carbon capture chemical absorbent has the advantages of low price, simplicity in operation, rapidness and high efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon capture technical field especially relates to a kind of for carbon capture chemical absorbent performance rapid test equipment. BACKGROUND

[0002] Carbon capture technology refers to the method using physics or chemistry to collect carbon dioxide, and realize purification, is the prerequisite for carbon utilization. The most widely used carbon capture technology is alcohol amine method (such as MEA method), that is, first using alcohol amine solution in absorption tower to absorb CO2, then to the analysis tower using steam reboiler to release CO2, to realize the capture of CO2.

[0003] The performance of chemical absorbent directly affects the efficiency and cost of carbon capture, but the existing test device often has problems such as high price, long test period, complex operation and low data accuracy, which limits the progress of absorbent performance optimization.

[0004] Therefore, it is necessary to provide a new carbon capture chemical absorbent performance rapid test equipment to solve the above problems. Utility model content

[0005] The utility model solves the technical problem to provide a kind of low in price, easy operation, fast and efficient for carbon capture chemical absorbent performance rapid test equipment.

[0006] To solve the above technical problems, the carbon capture chemical absorbent performance rapid test equipment provided by the utility model comprises: a cylinder, the inside of the cylinder is filled with a filler layer for gas-liquid contact, a gas inlet mechanism for spraying gas upward into the inside of the cylinder is installed at the bottom end of the cylinder, and a spraying mechanism for spraying liquid onto the surface of the filler layer is installed at the top end of the cylinder; the spraying mechanism comprises a water inlet pipe, the water inlet pipe is installed at the top end of the cylinder, a metering pump is installed at the bottom end of the water inlet pipe, a plurality of connecting pipes are installed on the side wall of the water inlet pipe, a spraying pipe is rotatably connected inside the connecting pipe, and a sealing ring is installed between the spraying pipe and the connecting pipe; a plurality of spray heads are installed at the bottom end of the spraying pipe, the spray heads are tangent to the side wall of the spraying pipe, and the rotation directions of adjacent spraying pipes are opposite; a test mechanism for testing the performance of chemical absorbent is installed on the side wall of the cylinder, and a cleaning mechanism for cleaning the filler layer is installed inside the cylinder.

[0007] Preferably, the gas inlet mechanism comprises a gas inlet pipe, the gas inlet pipe is installed at the bottom end of the cylinder, a needle valve and a flowmeter are installed at one end of the gas inlet pipe; a plurality of gas jet nozzles are installed at the other end of the gas inlet pipe, and the gas jet nozzles are located inside the cylinder.

[0008] Preferably, a porous plate in a funnel shape is arranged inside the bottom end of the barrel body, a first through hole is arranged at the center of the surface of the porous plate, a plurality of second through holes are arranged on the surface of the porous plate, and the diameter of the first through hole is greater than the diameter of the second through hole.

[0009] Preferably, the cleaning mechanism comprises a motor, the motor is fixed to the top surface of the barrel body, one end of the motor is provided with a fixed shaft, a stirring rod and a spiral stirring plate are arranged on the side wall of the fixed shaft, and the stirring rod and the stirring plate are rotationally connected to the inside of the filler layer.

[0010] Preferably, the bottom end of the barrel body is fixedly connected with a support net, and the filler layer is arranged on the surface of the support net.

[0011] Preferably, a base is fixedly connected to the center of the surface of the support net, the base is rotationally connected between the fixed sleeve and the fixed shaft, and the stirring rod is fixedly connected to the side wall of the fixed sleeve.

[0012] Preferably, the test mechanism comprises an air outlet pipe, the top end of the barrel body is connected with a gas-liquid separator through the air outlet pipe, the gas outlet of the gas-liquid separator is connected with a carbon dioxide analyzer, the bottom end of the barrel body and the gas-liquid separator are both provided with a drain pipe, and the drain pipes are communicated with a total organic carbon analyzer.

[0013] Compared with the related art, the carbon capture chemical absorbent performance rapid test equipment has the following beneficial effects:

[0014] The utility model provides a rapid testing device for the performance of a carbon capture chemical absorbent, wherein CO2 and a mixed gas enter the interior of the packing layer upward through the air intake mechanism, and the CO2 chemical absorbent solution is sprayed onto the surface of the packing layer through the nozzle; the nozzle is tangent to the side wall of the spray pipe, and when the solution is sprayed out through the nozzle, the nozzle and the spray pipe are pushed in the opposite direction to rotate, so that the solution is evenly sprayed on the surface of the packing layer, and the adjacent spray pipes are turned in the opposite direction, so that the solution is sprayed on the surface of the packing layer from different angles and directions, thereby increasing the uniformity of the solution sprayed on the surface of the packing layer and facilitating the uniform downward leakage and upward movement of the solution inside the packing layer. The packing layer increases the contact area and time between the solution and the gas, making it easier for the CO2 in the gas to be absorbed by the chemical absorbent solution; the unabsorbed gas is discharged from the inside of the cylinder and enters the gas-liquid separator, and the separated gas is passed into the carbon dioxide analyzer to analyze the CO2 content in the gas; the liquid inside the cylinder and the liquid after gas-liquid separation are mixed and then enter the total organic carbon analyzer to analyze the CO2 content absorbed in the liquid, thereby detecting the performance of the CO2 chemical absorbent; the device has a simple structure and is easy to operate, which improves the test efficiency. At the same time, through precise gas control and data acquisition systems, the accuracy and reliability of the test results are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a device for rapid performance testing of carbon capture chemical absorbents provided by the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the internal structure of the connecting pipe shown;

[0017] Figure 3 for Figure 1 The top view of the internal structure of the cylinder is shown;

[0018] Figure 4 for Figure 1 The top view of the porous plate structure is shown.

[0019] Numbers in the figure: 1. Cylinder, 11. Packing layer, 12. Support net, 2. Spraying mechanism, 21. Metering pump, 22. Water inlet pipe, 23. Connecting pipe, 24. Spraying pipe, 25. Sealing ring, 26. Nozzle, 3. Cleaning mechanism, 31. Motor, 32. Fixed shaft, 33. Stirring rod, 34. Stirring plate, 35. Fixed sleeve, 36. Base, 4. Testing mechanism, 41. Air outlet pipe, 42. Gas-liquid separator, 43. Carbon dioxide analyzer, 44. Drain pipe, 45. Total organic carbon analyzer, 5. Air intake mechanism, 51. Needle valve, 52. Flow meter, 53. Air inlet pipe, 54. Jet nozzle, 55. Perforated plate, 56. First through hole, 57. Second through hole. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0021] See also Figures 1 to 4 , Figure 1 A schematic structural diagram of a preferred embodiment of a device for rapid performance testing of carbon capture chemical absorbents provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the internal structure of the connecting pipe shown; Figure 3 for Figure 1 The top view of the internal structure of the cylinder is shown; Figure 4 for Figure 1 The porous plate structure is shown in a top view. The rapid performance testing device for carbon capture chemical absorbents includes: a cylinder 1, the interior of which is filled with a packing layer 11 for gas-liquid contact; an air intake mechanism 5 for spraying gas upward into the interior of the cylinder 1, mounted at the bottom end of the cylinder 1; the air intake mechanism 5 including an air intake pipe 53 mounted at the bottom end of the cylinder 1; a needle valve 51 and a flow meter 52 mounted at one end of the air intake pipe 53; and a plurality of air jet nozzles 54 mounted at the other end of the air intake pipe 53. The air jet nozzles 54 are located within the cylinder 1, and CO2 and mixed gas are transported into the air intake pipe 53. The flow rate of the gas in the air intake pipe 53 is regulated by the needle valve 51, and the flow rate of the gas in the air intake pipe 53 is monitored by the flow meter 52. The gas enters the interior of the bottom end of the cylinder 1 through the air intake pipe 53 and the air jet nozzles 54.

[0022] A funnel-shaped porous plate 55 is installed inside the bottom end of the cylinder 1, and a first through hole 56 is provided in the center of the surface of the porous plate 55. A plurality of second through holes 57 are provided on the surface of the porous plate 55, and the diameter of the first through hole 56 is larger than the diameter of the second through hole 57; the surface of the porous plate 55 is funnel-shaped, so that the solution flowing from the inside of the packing layer 11 flows downward on the surface of the porous plate 55, so that the solution is discharged from the inside of the first through hole 56, and the gas inside the cylinder 1 passes through the second through hole 57 and moves upward, and the porous plate 55 makes the gas evenly distributed and then enters the inside of the packing layer 11.

[0023] The top of the cylinder 1 is installed with a spraying mechanism 2 for spraying liquid onto the surface of the packing layer 11; the spraying mechanism 2 includes a water inlet pipe 22, the top of the cylinder 1 is installed with the water inlet pipe 22, the bottom end of the water inlet pipe 22 is installed with a metering pump 21, and the side wall of the water inlet pipe 22 is installed with multiple connecting pipes 23, the inside of the connecting pipe 23 is connected to the spraying pipe 24, and a sealing ring 25 is installed between the spraying pipe 24 and the connecting pipe 23; the bottom end of the spraying pipe 24 is installed with multiple nozzles 26, and the nozzles 26 are tangent to the side wall of the spraying pipe 24, and the adjacent spraying pipes 24 have opposite directions; the solution is transported into the inner wall of the water inlet pipe 22 by the metering pump 21 The metering pump 21 controls the flow rate of the solution inside the water inlet pipe 22, and the solution enters the nozzle 26 through the connecting pipe 23 and the spraying pipe 24. The nozzle 26 is tangent to the side wall of the spraying pipe 24. When the solution is sprayed out through the nozzle 26, the nozzle 26 and the spraying pipe 24 are pushed in the opposite direction to rotate, so that the solution is evenly sprayed on the surface of the packing layer 11, and the adjacent spraying pipes 24 are turned in the opposite direction, so that the solution is sprayed on the surface of the packing layer 11 from different angles and directions, increasing the uniformity of the solution sprayed on the surface of the packing layer 11, facilitating the solution to evenly leak downward inside the packing layer 11 and contact with the upward moving gas, thereby improving the absorption effect of the solution.

[0024] The side wall of the cylinder 1 is installed with a test mechanism 4 for testing the performance of the chemical absorbent, and the test mechanism 4 includes an air outlet pipe 41. The top of the cylinder 1 is connected to the gas-liquid separator 42 through the air outlet pipe 41, and the air outlet of the gas-liquid separator 42 is connected to the carbon dioxide analyzer 43; the bottom ends of the cylinder 1 and the gas-liquid separator 42 are both installed with a drain pipe 44, and the drain pipe 44 is connected to the total organic carbon analyzer 45; the gas discharged from the inside of the packing layer 11 is discharged from the inside of the cylinder 1 and enters the gas-liquid separator 42 through the air outlet pipe 41. The gas-liquid separator 42 separates the gas from the solution, and the separated gas is passed into the carbon dioxide analyzer 43 to analyze the CO2 content in the gas; the liquid leaked from the inside of the packing layer 11 and the liquid after gas-liquid separation are mixed and enter the total organic carbon analyzer 415 to analyze the CO2 content absorbed in the liquid, integrate the data records of the analyzer, compare the data, and judge the absorption effect of the solution on carbon dioxide.

[0025] And the interior of the cylinder 1 is installed with a cleaning mechanism 3 for cleaning the packing layer 11; the cleaning mechanism 3 includes a motor 31, the motor 31 is fixed to the top surface of the cylinder 1, one end of the motor 31 is installed with a fixed shaft 32, the side wall of the fixed shaft 32 is installed with a stirring rod 33 and a spiral stirring plate 34, and the stirring rod 33 and the stirring plate 34 are rotatably connected to the interior of the packing layer 11; the bottom end of the cylinder 1 is fixedly connected to the support net 12, and the packing layer 11 is laid on the surface of the support net 12; the center of the surface of the support net 12 is fixedly connected to the base 36, the base 36 is rotatably connected to the fixed sleeve 35 and the fixed shaft 32, and the side wall of the fixed sleeve 35 is fixedly connected to the stirring rod 33. When use is finished, open The motor 31 drives the stirring rod 33 and the stirring plate 34 to rotate. At this time, the metering pump 21 delivers clean water into the interior of the nozzle 26, and the clean water sprays the packing layer 11. The stirring plate 34 is spiral-shaped. The stirring plate 34 rotates counterclockwise to push the packing upward. The stirring rod 33 pushes the packing to move, so that the packing moves continuously, which facilitates the clean water to clean the solution adsorbed on the surface of the packing. The rotation of the stirring rod 33 drives the fixed sleeve 35 to rotate on the side wall of the base 36. The fixed sleeve 35 increases the stability of the rotation of the stirring rod 33, which facilitates the stirring plate 33 to push the packing to move. After cleaning, the vibration motor is used to vibrate the inside of the cylinder 1 so that the packing is vibrated and compacted and can be used again.

[0026] The working principle of the carbon capture chemical absorbent performance rapid testing equipment provided by the present invention is as follows: the device is connected to an external power supply, the stored CO2 and mixed gas are transported into the interior of the air inlet pipe 53, the flow rate of the gas in the air inlet pipe 53 is adjusted by the needle valve 51, the flow rate of the gas in the air inlet pipe 53 is monitored by the flow meter 52, the gas enters the bottom end of the cylinder 1 through the air inlet pipe 53 and the jet nozzle 54, the gas inside the cylinder 1 passes through the second through hole 57 and moves upward, and the porous plate 55 makes the gas evenly distributed before entering the interior of the packing layer 11. The metering pump 21 is turned on to allow the chemical absorption solution to be transported into the interior of the water inlet pipe 22 through the metering pump 21. The solution enters the nozzle 26 through the connecting pipe 23 and the spraying pipe 24. The nozzle 26 is tangent to the side wall of the spraying pipe 24. When the solution is sprayed out through the nozzle 26, the nozzle 26 and the spraying pipe 24 are pushed in the opposite direction to rotate, so that the solution is evenly sprayed on the surface of the packing layer 11, and the adjacent spraying pipes 24 are turned in the opposite direction, so that the solution is sprayed on the surface of the packing layer 11 from different angles and directions, increasing the uniformity of the solution sprayed on the surface of the packing layer 11, facilitating the solution to evenly leak downward inside the packing layer 11 and contact with the upward moving gas. The gas and solution contact inside the packing layer 11, and the solution absorbs the carbon dioxide inside the gas. The gas discharged from the inside of the packing layer 11 is discharged from the inside of the cylinder 1 and enters the gas-liquid separator 42 through the gas outlet pipe 41. The gas-liquid separator 42 separates the gas from the solution, and the separated gas is passed into the carbon dioxide analyzer 43 to analyze the CO2 content in the gas; the liquid leaked from the inside of the packing layer 11 and the liquid after gas-liquid separation are mixed and enter the total organic carbon analyzer 415 to analyze the CO2 content absorbed in the liquid. The data records of the analyzer are integrated and compared to judge the absorption effect of the solution on carbon dioxide. After the test, the motor 31 is turned on, and the motor 31 drives the stirring rod 33 and the stirring plate 34 to rotate. At this time, the metering pump 21 delivers clean water into the interior of the nozzle 26, and the clean water sprays the packing layer 11. The stirring plate 34 is spiral, and the stirring plate 34 rotates counterclockwise to push the packing upward. The stirring rod 33 pushes the packing to move, so that the packing moves continuously, which is convenient for clean water to clean the solution adsorbed on the surface of the packing. The rotation of the stirring rod 33 drives the fixed sleeve 35 to rotate on the side wall of the base 36. The fixed sleeve 35 increases the stability of the rotation of the stirring rod 33, which is convenient for the stirring plate 33 to push the packing to move. After cleaning, the vibration motor is used to vibrate the inside of the cylinder 1 to vibrate and compact the packing before it can be used again.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rapid performance testing device for carbon capture chemical absorbents, characterized in that: include: A cylinder (1), the interior of the cylinder (1) is filled with a packing layer (11) for gas-liquid contact, the bottom end of the cylinder (1) is equipped with an air intake mechanism (5) for spraying gas upward into the interior of the cylinder (1), and the top end of the cylinder (1) is equipped with a spraying mechanism (2) for spraying liquid onto the surface of the packing layer (11); The spraying mechanism (2) includes a water inlet pipe (22), the water inlet pipe (22) is installed at the top end of the cylinder (1), a metering pump (21) is installed at the bottom end of the water inlet pipe (22), a plurality of connecting pipes (23) are installed on the side wall of the water inlet pipe (22), the interior of the connecting pipe (23) is rotatably connected to the spraying pipe (24), and a sealing ring (25) is installed between the spraying pipe (24) and the connecting pipe (23); a plurality of spray heads (26) are installed at the bottom end of the spraying pipe (24), and the spray heads (26) are tangent to the side wall of the spraying pipe (24), and the adjacent spraying pipes (24) have opposite directions; A testing mechanism (4) for testing the performance of a chemical absorbent is installed on the side wall of the cylinder (1), and a cleaning mechanism (3) for cleaning the packing layer (11) is installed inside the cylinder (1).

2. The rapid testing device for carbon capture chemical absorbent performance according to claim 1, characterized in that: The air intake mechanism (5) comprises an air intake pipe (53), the bottom end of the cylinder (1) is mounted with the air intake pipe (53), one end of the air intake pipe (53) is mounted with a needle valve (51) and a flow meter (52); the other end of the air intake pipe (53) is mounted with a plurality of jet nozzles (54), the jet nozzles (54) are located inside the cylinder (1).

3. The rapid testing device for carbon capture chemical absorbent performance according to claim 2, characterized in that: A funnel-shaped porous plate (55) is installed inside the bottom end of the cylinder (1), a first through hole (56) is provided at the center of the surface of the porous plate (55), and a plurality of second through holes (57) are provided on the surface of the porous plate (55), and the diameter of the first through hole (56) is larger than the diameter of the second through hole (57).

4. The rapid testing device for carbon capture chemical absorbent performance according to claim 1, characterized in that: The cleaning mechanism (3) includes a motor (31), the motor (31) is fixed to the top surface of the cylinder (1), a fixed shaft (32) is installed at one end of the motor (31), a stirring rod (33) and a spiral stirring plate (34) are installed on the side wall of the fixed shaft (32), and the stirring rod (33) and the stirring plate (34) are rotatably connected to the inside of the packing layer (11).

5. The rapid testing device for carbon capture chemical absorbent performance according to claim 4, characterized in that: The bottom end of the cylinder (1) is fixedly connected to a support net (12), and the filler layer (11) is laid on the surface of the support net (12).

6. The rapid testing device for carbon capture chemical absorbent performance according to claim 5, characterized in that: A base (36) is fixedly connected to the center of the surface of the support net (12), the base (36) is rotatably connected to the fixed sleeve (35) and the fixed shaft (32), and the side wall of the fixed sleeve (35) is fixedly connected to the stirring rod (33).

7. The rapid testing device for carbon capture chemical absorbent performance according to claim 1, characterized in that: The testing mechanism (4) includes an air outlet pipe (41), the top end of the cylinder (1) is connected to a gas-liquid separator (42) through the air outlet pipe (41), and the air outlet of the gas-liquid separator (42) is connected to a carbon dioxide analyzer (43); the bottom ends of the cylinder (1) and the gas-liquid separator (42) are both installed with a drainage pipe (44), and the drainage pipe (44) is connected to a total organic carbon analyzer (45).

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