A checkerboard type zeolite molecular sieve adsorption and desorption device

Abstract

The utility model discloses a chessboard type zeolite molecular sieve adsorption and desorption device, including the box, be equipped with the adsorption inlet and outlet air port on the box, array arrangement several zeolite adsorption modules in the box, and zeolite adsorption module is sealedly installed with the box, is equipped with the air port I and air port II on zeolite adsorption module, and air port I connects baffle I, and air port II connects baffle II, be equipped with the desorption inlet and outlet air pipe on the box, and desorption inlet air pipe seal rotation connects desorption air tank I, is equipped with hole I on desorption air tank I, and desorption air tank I can be pasted baffle II rotation and make hole I with any air port II intercommunication, and desorption outlet air pipe seal rotation connects desorption air tank II, and is equipped with hole II on desorption air tank II, and desorption air tank II can be pasted baffle I rotation and make hole II with any air port I intercommunication. The utility model discloses a chessboard type zeolite arrangement structure, and desorption is carried out through setting baffle and rotating desorption air tank in front and back, does not need valve, and single box can satisfy zeolite adsorption and desorption requirement.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a checkerboard-type zeolite molecular sieve adsorption-desorption device. Background Technology

[0002] A set of zeolite fixed-bed adsorption-desorption equipment requires at least two housings and four sets of adsorption-desorption valves to switch between adsorption and desorption processes in order to meet the usage requirements of a set of zeolite fixed-bed adsorption-desorption equipment. It has a large footprint, high investment cost, and requires multiple automatic control valves. Due to the frequent valve switching during operation, the valves themselves have a relatively high failure rate, which affects the use of the equipment. Utility Model Content

[0003] This utility model aims to solve the technical problems existing in the prior art and provides a checkerboard zeolite molecular sieve adsorption-desorption device. It adopts a checkerboard zeolite arrangement structure and desorption is performed by setting baffles at the front and rear and rotating desorption air box. There is no need to set adsorption-desorption valves, and a single box can meet the adsorption-desorption requirements of zeolite.

[0004] The technical solution of this utility model is: a checkerboard-style zeolite molecular sieve adsorption-desorption device, comprising a box body, with an adsorption air inlet and an adsorption air outlet respectively provided on both sides of the box body. A plurality of zeolite adsorption modules are arranged in an array inside the box body, and the zeolite adsorption modules are sealed to the box body. Each zeolite adsorption module has an air outlet I and an air outlet II at both ends. Each air outlet I is connected to a baffle plate I, and each air outlet II is connected to a baffle plate II. Waste gas is transported from the adsorption air inlet through the baffle plate I and air outlet I to the corresponding zeolite adsorption module, where it is adsorbed and filtered. The air is discharged from the adsorption outlet through air inlet II and baffle plate II; the box body is also provided with a desorption inlet pipe and a desorption outlet pipe. The outlet end of the desorption inlet pipe is rotatably connected to a desorption air box I. The desorption air box I is provided with a hole I. The desorption air box I can rotate in contact with the baffle plate II and the hole I can be connected to any of the air inlets II; the inlet end of the desorption outlet pipe is rotatably connected to a desorption air box II. The desorption air box II is provided with a hole II. The desorption air box II can rotate in contact with the baffle plate I and the hole II can be connected to any of the air inlets I.

[0005] Furthermore, in this utility model, each of the air vents I is distributed at equal angles around the center of the wind deflector I, and each of the air vents II is distributed at equal angles around the center of the wind deflector II.

[0006] Furthermore, the zeolite adsorption module of this utility model includes a module body and a zeolite molecular sieve disposed within the module body. The two ends of the module body are respectively provided with a distribution pipe I and a distribution pipe II. Each distribution pipe I is connected to each air outlet I in a one-to-one correspondence, and each distribution pipe II is connected to each air outlet II in a one-to-one correspondence.

[0007] Furthermore, the module body of this utility model is also provided with a heat insulation layer, which wraps the zeolite molecular sieve.

[0008] Furthermore, in this utility model, the desorption inlet pipe and the desorption outlet pipe are symmetrically arranged, the top ends of the desorption inlet pipe and the desorption outlet pipe respectively extend through the top of the box body, and the bottom ends of the desorption inlet pipe and the desorption outlet pipe are respectively located on one side of the wind baffle plate II and the wind baffle plate I.

[0009] Furthermore, in this utility model, the desorption wind box I and the desorption wind box II are symmetrically arranged, and a synchronous drive device is provided between the desorption wind box I and the desorption wind box II.

[0010] Furthermore, the synchronous drive device described in this utility model includes a geared motor and a transmission shaft connected to the geared motor. The two ends of the transmission shaft are respectively provided with transmission sprockets I. The desorption air box I and the desorption air box II are respectively provided with transmission sprockets II corresponding to the two transmission sprockets I. A transmission chain is provided between the corresponding transmission sprockets I and the transmission sprockets II.

[0011] Compared with the prior art, this utility model has the following advantages: This utility model adopts a checkerboard zeolite arrangement structure, and desorption is carried out by setting baffles at the front and rear and rotating desorption wind box. There is no need to set up adsorption and desorption valves. After one zeolite adsorption module is desorbed, the desorption wind box continues to rotate to the next zeolite adsorption module that has not been desorbed. The desorbed zeolite adsorption module continues to be put into the adsorption process. Therefore, a single box can meet the zeolite adsorption and desorption requirements, and there will be no wear on the zeolite molecular sieve. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 AA section view; Figure 3 for Figure 1 BB section view; Figure 4 for Figure 1 CC section view.

[0013] The components are as follows: 1. Box body; 2. Adsorption air inlet; 3. Adsorption air outlet; 4. Zeolite adsorption module; 401. Module body; 402. Zeolite molecular sieve; 403. Air distribution duct I; 404. Air distribution duct II; 405. Insulation layer; 5. Air outlet I; 6. Air outlet II; 7. Baffle plate I; 8. Baffle plate II; 9. Desorption air inlet duct; 10. Desorption air outlet duct; 11. Desorption air box I; 11a. Hole I; 12. Desorption air box II; 12a. Hole II; 13. Gear motor; 14. Drive shaft; 15. Drive sprocket I; 16. Drive sprocket II; 17. Drive chain. Detailed Implementation

[0014] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Example: The accompanying drawings illustrate a specific embodiment of the checkerboard-style zeolite molecular sieve adsorption-desorption device of this utility model. (Refer to...) Figure 1 It mainly includes a box body 1. The left and right sides of the box body 1 are respectively provided with an adsorption air inlet 2 and an adsorption air outlet 3. The waste gas is introduced through the adsorption air inlet 2 and discharged from the adsorption air outlet 3 after treatment.

[0016] Combination Figure 1 , Figure 3 , Figure 4 The housing 1 contains nine zeolite adsorption modules 4 arranged in an array, with three modules in each of three layers. The nine zeolite adsorption modules 4 are sealed to the housing 1 to ensure that the exhaust gas can only pass through the zeolite adsorption modules 4.

[0017] Each zeolite adsorption module 4 has the following structure: it includes a module body 401, a zeolite molecular sieve 402 disposed within the module body 401, and a heat insulation layer 405 disposed within the module body 401 to enclose the zeolite molecular sieve 402. The heat insulation layer 405 can reduce heat loss. At the left and right ends of the module body 401, there are also air distribution pipes I 403 and II 404, respectively. Exhaust gas enters through air distribution pipe I 403 and exits through air distribution pipe II 404.

[0018] Each zeolite adsorption module 4 is equipped with an air outlet I5 and an air outlet II6 at both ends. Each air outlet I5 is connected to each branch air duct I403 in a one-to-one correspondence, and each air outlet II6 is connected to each branch air duct II404 in a one-to-one correspondence.

[0019] Each air vent I5 is connected to a wind deflector I7, and each air vent II6 is connected to a wind deflector II8. (Refer to...) Figure 2 Each air vent I5 is distributed at an equal angle around the center of the wind deflector I7, and similarly, each air vent II6 is distributed at an equal angle around the center of the wind deflector II8.

[0020] The flow path of the exhaust gas is as follows Figure 1As shown by the middle arrow a, the exhaust gas enters the housing 1 through the adsorption inlet 2, passes through the baffle plate I7, and is then transported from the air distribution pipe I403 to the zeolite molecular sieve 402 through the air outlet I5. After being adsorbed and filtered by the zeolite molecular sieve 402, it is discharged from the adsorption outlet 3 through the air distribution pipe II 404, the air outlet II 6 and the baffle plate II 8. The VOCs mixed in the exhaust gas are adsorbed and filtered by the zeolite molecular sieve 402.

[0021] The housing 1 is also sealed with a desorption air inlet pipe 9 and a desorption air outlet pipe 10. The desorption air inlet pipe 9 and the desorption air outlet pipe 10 are symmetrically arranged. The top ends of the desorption air inlet pipe 9 and the desorption air outlet pipe 10 extend out of the top of the housing 1, respectively. The bottom ends of the desorption air inlet pipe 9 and the desorption air outlet pipe 10 are located on one side of the wind baffle plate II8 and the wind baffle plate I7, respectively.

[0022] The bottom end of the desorption air inlet pipe 9 is the air outlet end, and the air outlet end is rotatably connected to the desorption air box I11. The desorption air box I11 is provided with a hole I11a. The desorption air box I11 can rotate in contact with the baffle plate II8 and make the hole I11a connected to any air outlet II6.

[0023] The bottom end of the desorption outlet duct 10 is the air inlet end, and the air inlet end is rotatably connected to the desorption air box II 12. The desorption air box II 12 is provided with a hole II 12a. The desorption air box II 12 can rotate in contact with the wind baffle I7 and make the hole II 12a connected to any air outlet I5.

[0024] The desorption air box I11 and the desorption air box II12 are symmetrically arranged so that the desorption air box I11 and the desorption air box II12 can always be synchronized at both ends of the same zeolite adsorption module 4.

[0025] A synchronous drive device is provided between the desorption air box I11 and the desorption air box II12, combined with Figure 1 , Figure 2 The synchronous drive device includes a geared motor 13 and a drive shaft 14 connected to the geared motor 13. The geared motor 13 and the drive shaft 14 are installed at the bottom inside the housing 1. The two ends of the drive shaft 14 are respectively provided with drive sprockets I15. The desorption air box I11 and the desorption air box II12 are respectively provided with drive sprockets II16 corresponding to the two drive sprockets I15. A drive chain 17 is provided between the corresponding drive sprockets I15 and drive sprockets II16.

[0026] In this embodiment, the wind baffle I7, wind baffle II8, desorption inlet pipe 9, and desorption outlet pipe 10 are all fixed structures, while the desorption air boxes I11 and II12 are movable structures. During the desorption process, the flow path of the high-temperature hot air is as follows: Figure 1As shown by the middle arrow b, high-temperature hot air is continuously input through the desorption inlet pipe 9 and enters the desorption air box I11 from the air outlet at the bottom of the desorption inlet pipe 9. It is then transported through the hole I11a through the baffle plate II8, the air outlet II6 and the distribution pipe II404 to the corresponding zeolite molecular sieve 402. The VOCs adsorbed in the zeolite molecular sieve 402 are desorbed under the action of the high-temperature hot air. The desorption air containing VOCs continues to pass through the distribution pipe I403, the air outlet I5 and the baffle plate I7 ​​and then enters the desorption air box II12 through the hole II12a. Finally, it enters the desorption outlet pipe 10 from the air inlet at the bottom of the desorption outlet pipe 10 and is discharged.

[0027] After desorption by one zeolite adsorption module 4, the geared motor 13 drives the transmission shaft 14 to rotate. The transmission shaft 14 drives two transmission sprockets I15 to rotate synchronously, and then drives two transmission sprockets II16 to rotate synchronously through the transmission chain 17. Figure 2 As shown, Figure 2 The middle arrow 'c' indicates the rotation direction of the desorption bellows. After the two drive sprockets II16 drive the desorption bellows I11 and II12 to rotate synchronously at a fixed angle, the holes I11a and II12a respectively connect with the corresponding air outlets II6 and I5. After the connection is completed, the two desorption bellows continue to desorb the undried zeolite adsorption modules 4. The desorbed zeolite adsorption modules 4, without the obstruction of the desorption bellows, continue to be put into the adsorption process. It should be noted that the insulation layer 405 in the zeolite adsorption module 4 can also reduce the heat loss during the desorption process and ensure the desorption effect.

[0028] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A checkerboard-style zeolite molecular sieve adsorption-desorption device, characterized in that: The enclosure includes a housing (1), on which adsorption air inlets (2) and adsorption air outlets (3) are respectively provided on both sides. Several zeolite adsorption modules (4) are arranged in an array inside the housing (1). The several zeolite adsorption modules (4) are sealed and installed between the housing (1). Each zeolite adsorption module (4) has an air outlet I (5) and an air outlet II (6) at both ends. Each air outlet I (5) is connected to a baffle plate I (7), and each air outlet II (6) is connected to a baffle plate II (8). Waste gas is transported from the adsorption air inlet (2) through the baffle plate I (7) and through the air outlet I (5) to the corresponding zeolite adsorption module (4). The adsorbed and filtered waste gas is discharged from the adsorption air outlet (3) through the air outlet II (6) and the baffle plate II (8). The box (1) is also provided with a desorption inlet pipe (9) and a desorption outlet pipe (10). The outlet end of the desorption inlet pipe (9) is rotatably connected to a desorption air box I (11). The desorption air box I (11) is provided with a hole I (11a). The desorption air box I (11) can rotate in contact with the baffle plate II (8) and make the hole I (11a) connected to any of the air outlets II (6). The inlet end of the desorption outlet pipe (10) is rotatably connected to a desorption air box II (12). The desorption air box II (12) is provided with a hole II (12a). The desorption air box II (12) can rotate in contact with the baffle plate I (7) and make the hole II (12a) connected to any of the air outlets I (5).

2. The checkerboard-style zeolite molecular sieve adsorption-desorption device according to claim 1, characterized in that: Each of the air vents I (5) is distributed at equal angles around the center of the wind deflector I (7), and each of the air vents II (6) is distributed at equal angles around the center of the wind deflector II (8).

3. The checkerboard-style zeolite molecular sieve adsorption-desorption device according to claim 1, characterized in that: The zeolite adsorption module (4) includes a module body (401) and a zeolite molecular sieve (402) disposed in the module body (401). The two ends of the module body (401) are respectively provided with air distribution pipe I (403) and air distribution pipe II (404). Each air distribution pipe I (403) is connected to each air outlet I (5) in a one-to-one correspondence, and each air distribution pipe II (404) is connected to each air outlet II (6) in a one-to-one correspondence.

4. The checkerboard-type zeolite molecular sieve adsorption-desorption device according to claim 3, characterized in that: The module body (401) is also provided with a heat insulation layer (405), which wraps the zeolite molecular sieve (402).

5. The checkerboard-style zeolite molecular sieve adsorption-desorption device according to claim 2, characterized in that: The desorption inlet pipe (9) and the desorption outlet pipe (10) are symmetrically arranged. The top ends of the desorption inlet pipe (9) and the desorption outlet pipe (10) respectively extend out of the top of the box body (1). The bottom ends of the desorption inlet pipe (9) and the desorption outlet pipe (10) are respectively located on one side of the wind baffle plate II (8) and the wind baffle plate I (7).

6. The checkerboard-style zeolite molecular sieve adsorption-desorption device according to claim 5, characterized in that: The desorption box I (11) and the desorption box II (12) are symmetrically arranged, and a synchronous drive device is provided between the desorption box I (11) and the desorption box II (12).

7. The checkerboard-style zeolite molecular sieve adsorption-desorption device according to claim 6, characterized in that: The synchronous drive device includes a geared motor (13) and a drive shaft (14) connected to the geared motor (13). Both ends of the drive shaft (14) are provided with drive sprockets I (15). The desorption box I (11) and the desorption box II (12) are respectively provided with drive sprockets II (16) corresponding to the two drive sprockets I (15). A drive chain (17) is provided between the corresponding drive sprockets I (15) and drive sprockets II (16).

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