Zeolite molecular sieve adsorption and desorption device

Abstract

The utility model relates to the technical field of special gas recovery, and provides a zeolite molecular sieve adsorption and desorption device which comprises a molecular sieve adsorption tank, the top and the bottom of the molecular sieve adsorption tank respectively penetrate through and are fixedly connected with a gas outlet pipe and a gas filling pipe, and electromagnetic valves are arranged in the gas outlet pipe and the gas filling pipe. According to the molecular sieve adsorption tank, the uniform stirring mechanism is arranged, so that when the motor is started to drive the rotating shaft to rotate, the stirring barrel is driven to synchronously rotate through the matching between the two groups of sliding blocks and the two groups of sliding grooves; through cooperation of the eccentric disc, the air bag, the air pressure bin and other components, the stirring barrel can be driven to rotate and move upwards intermittently at the same time, and then the stirring barrel moves downwards to be reduced due to gravity, so that circulation is formed, the effect of uniformly stirring zeolite molecules in the molecular sieve adsorption tank is achieved, and gas makes more sufficient contact with the zeolite molecules.

Description

Technical Field

[0001] This utility model relates to the field of special gas recovery technology, specifically to a zeolite molecular sieve adsorption-desorption device. Background Technology

[0002] Molecular sieves are a class of adsorbents or thin-film materials with uniform micropores, mainly composed of silicon, aluminum, oxygen, and other metal cations. Their pore size is comparable to that of ordinary molecules, and they are used to sieve various fluid molecules based on their effective pore size. Zeolite molecular sieves refer to natural and synthetic crystalline aluminosilicates that exhibit molecular sieving properties. Due to their unique structure and properties, zeolite molecular sieves have become an independent discipline, with applications spanning petrochemicals, environmental protection, bioengineering, food processing, and pharmaceuticals. With the development of various sectors of the national economy, the application prospects of zeolite molecular sieves are increasingly broad.

[0003] Patent document CN115155249B discloses a method and apparatus for recovering special gases adsorbed by molecular sieves, including a molecular sieve adsorption column, a condenser, and a gas pump. A condenser tube is fixedly connected in the condenser, and the suction end of the gas pump is fixedly connected to the end of the condenser. The top of the molecular sieve adsorption column is connected to the condenser through a second connecting pipe. In the above application, a gas circulator is used to circulate non-impurity gas in the molecular sieve adsorption column and blow the main shaft to rotate in the molecular sieve adsorption column to agitate the zeolite molecular sieve in the molecular sieve adsorption column. However, the agitation effect on the zeolite molecules is not good enough, and the main shaft is prone to jamming. Moreover, the agitation is mainly lateral, which is not effective. Utility Model Content

[0004] This invention proposes a zeolite molecular sieve adsorption-desorption device, which solves the problems mentioned in the above documents.

[0005] The technical solution of this utility model is as follows:

[0006] A zeolite molecular sieve adsorption-desorption device includes a molecular sieve adsorption tank. An outlet pipe and an inflation pipe are respectively and fixedly connected to the top and bottom of the molecular sieve adsorption tank. Both the outlet pipe and the inflation pipe are equipped with solenoid valves. A partition mesh is fixedly connected inside the molecular sieve adsorption tank. A uniform stirring mechanism and a circulation mechanism are provided inside the molecular sieve adsorption tank. The uniform stirring mechanism includes a motor, a stirring drum, and a pressure chamber. The motor is fixedly installed at the bottom of the molecular sieve adsorption tank. A rotating shaft is fixedly connected to the motor via its output shaft. A slider and an eccentric disk are fixedly connected to the surface of the rotating shaft. A sliding groove is formed on the inner wall of the stirring drum. A movable disk is fixedly connected to the surface of the stirring drum. The pressure chamber is fixedly connected to the inner wall of the molecular sieve adsorption tank. An air bladder is provided at one end of the pressure chamber. A push rod is slidably connected to a piston inside the other end of the pressure chamber. A ball bearing is provided at the top of the push rod.

[0007] The rotating shaft is rotatably connected to the bottom of the molecular sieve adsorption tank and the bottom of the separator. The separator can separate zeolite molecules and prevent them from affecting the parts on the rotating shaft.

[0008] The number of sliders and chutes is set to two sets, and the two sets of sliders are slidably connected in the two sets of chutes respectively. When the shaft rotates, the stirring drum will rotate synchronously through the cooperation between the two sets of sliders and the two sets of chutes.

[0009] The eccentric disk and the airbag are on the same horizontal plane, and the airbag is initially in an inflated state. When the eccentric disk rotates with the shaft, it will intermittently squeeze the airbag. The airbag is squeezed and the air pressure inside it will enter the air pressure chamber, which will drive the push rod to move upward.

[0010] The top of the ball initially contacts the bottom of the moving disk. When the push rod moves upward, it pushes the moving disk upward through the ball. The rolling of the ball reduces the friction with the moving disk.

[0011] The circulation mechanism includes a pressure chamber and a rotating gear. The pressure chamber is fixedly connected to the bottom of the molecular sieve adsorption tank. An intake pipe and an exhaust pipe are respectively connected through and fixedly connected to the top and bottom of the pressure chamber. A one-way valve is installed inside the intake pipe and the exhaust pipe. A return spring is installed inside the pressure chamber. A piston rod is slidably connected inside the pressure chamber through the return spring piston. A toothed rod is fixedly connected to the end of the piston rod away from the pressure chamber. The rotating gear is fixedly connected to the surface of the rotating shaft.

[0012] The end of the suction pipe away from the pressure chamber is close to the top of the molecular sieve adsorption tank, and the end of the exhaust pipe away from the pressure chamber is close to the bottom of the molecular sieve adsorption tank. The suction pipe draws in the gas from the top of the molecular sieve adsorption tank and discharges it to the bottom through the exhaust pipe to form a cycle.

[0013] The one-way valve in the intake pipe is open to the inside of the pressure chamber, and the one-way valve in the exhaust pipe is open to the outside of the pressure chamber. When a negative pressure is formed in the pressure chamber, gas will be drawn in through the intake pipe. When the gas in the pressure chamber is squeezed, the gas will be discharged through the exhaust pipe.

[0014] The rack has an overall L-shaped shape, and the teeth on the rack are matched with the teeth on the rotating gear. When the rotating gear rotates and its teeth mesh with the teeth on the rack, it will drive the rack to move to the right.

[0015] The rotating gear has only half of its teeth. When the rotating gear rotates to the toothless part, it will disengage from the rack.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting up a uniform stirring mechanism, achieves the effect of uniformly stirring the zeolite molecules in the molecular sieve adsorption tank when the motor drives the rotating shaft to rotate. This is achieved through the cooperation between two sets of sliders and two sets of grooves. Furthermore, through the cooperation of components such as the eccentric disc, air bag, and air pressure chamber, the stirring tank is also driven to rotate while intermittently moving upwards. Subsequently, it moves downwards due to gravity and returns to its original position, thus forming a cycle to achieve the effect of uniformly stirring the zeolite molecules in the molecular sieve adsorption tank, making the contact between the gas and the zeolite molecules more sufficient.

[0018] 2. This utility model, by setting up a circulation mechanism, achieves the effect that when the motor drives the rotating shaft to rotate, the rotating gear, rack, pressure chamber and other components work together to make the gas suction pipe draw in the gas near the top of the molecular sieve adsorption tank and discharge it to the bottom of the molecular sieve adsorption tank through the exhaust pipe. This makes the gas entering the molecular sieve adsorption tank circulate from top to bottom, improving the adsorption and desorption effect of the gas. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the uniform stirring mechanism of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the circulating mechanism structure of this utility model;

[0025] Figure 6 This is a cross-sectional view of the circulating mechanism structure of this utility model.

[0026] In the diagram: 1. Molecular sieve adsorption tank; 2. Gas outlet pipe; 3. Gas filling pipe; 4. Solenoid valve; 5. Uniform stirring mechanism; 51. Motor; 52. Rotating shaft; 53. Sliding block; 54. Stirring cylinder; 55. Slide groove; 56. Moving disc; 57. Eccentric disc; 58. Pressure chamber; 59. Air bladder; 510. Push rod; 511. Ball bearing; 6. Circulation mechanism; 61. Pressure chamber; 62. Inhalation pipe; 63. Exhaust pipe; 64. Return spring; 65. Piston rod; 66. Gear rack; 67. Rotating gear; 7. Separating mesh. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] like Figures 1-6As shown, this embodiment proposes a zeolite molecular sieve adsorption-desorption device, including a molecular sieve adsorption tank 1. An outlet pipe 2 and an inflation pipe 3 are respectively connected and fixedly connected to the top and bottom of the molecular sieve adsorption tank 1. Solenoid valves 4 are installed inside both the outlet pipe 2 and the inflation pipe 3. A separator 7 is fixedly connected inside the molecular sieve adsorption tank 1. A uniform stirring mechanism 5 and a circulation mechanism 6 are installed inside the molecular sieve adsorption tank 1. The uniform stirring mechanism 5 includes a motor 51, a stirring drum 54, and a pressure chamber 58. The motor 51 is fixedly installed at the bottom of the molecular sieve adsorption tank 1. A rotating shaft 52 is fixedly connected to the motor 51 through its output shaft. The rotating shaft 52 is rotatably connected to the bottom of the molecular sieve adsorption tank 1 and the bottom of the separator 7. The separator 7 can separate zeolite molecules and prevent them from affecting the parts on the rotating shaft 52. A slider 53 and an eccentric disk 57 are fixedly connected to the surface of the rotating shaft 52. A groove 55 is provided on the inner wall of the stirring drum 54. The number of sliders 53 and grooves 55 are both set in two sets, and the two sets of sliders 53... 3. The two sets of sliders 53 are slidably connected in the two sets of sliding grooves 55 respectively. When the rotating shaft 52 rotates, it will drive the stirring drum 54 to rotate synchronously through the cooperation between the two sets of sliders 53 and the two sets of sliding grooves 55. The surface of the stirring drum 54 is fixedly connected to the moving disk 56. The pressure chamber 58 is fixedly connected to the inner wall of the molecular sieve adsorption tank 1. One end of the pressure chamber 58 is provided with an air bag 59. The other end of the pressure chamber 58 is slidably connected to the piston with a push rod 510. The eccentric disk 57 and the air bag 59 are on the same horizontal plane, and the air bag 59 is initially in a certain state. When the eccentric disk 57 rotates with the rotating shaft 52, it intermittently squeezes the air bladder 59. The air pressure inside the air bladder 59 is squeezed and enters the air pressure chamber 58, which drives the push rod 510 to move upward. The top of the push rod 510 is equipped with a ball bearing 511. In the initial state, the top of the ball bearing 511 is in contact with the bottom of the moving disk 56. When the push rod 510 moves upward, it will push the moving disk 56 upward through the ball bearing 511. The rolling of the ball bearing 511 reduces the friction with the moving disk 56.

[0030] In this embodiment, zeolite molecules are filled into the molecular sieve adsorption tank 1, so that the zeolite molecules are positioned above the separator 7. Gas is introduced into the molecular sieve adsorption tank 1 through the gas filling pipe 3, and the connection between the gas outlet pipe 2 and the gas filling pipe 3 is closed by two solenoid valves 4. The motor 51 is turned on, and the motor 51 drives the rotating shaft 52 to rotate through its output shaft. The rotation of the rotating shaft 52 drives the stirring drum 54 to rotate synchronously through the cooperation between the two sets of sliders 53 and the two sets of sliding grooves 55. The rotation of the stirring drum 54 agitates the zeolite molecules in the molecular sieve adsorption tank 1 through its stirring blades. The rotation of the rotating shaft 52 also drives the eccentric disk 57 to rotate. As the eccentric disk 57 rotates with the rotating shaft 52, it intermittently... When the gas is squeezed into the air bladder 59, the pressure inside the air bladder 59 enters the pressure chamber 58, causing the push rod 510 to move upward. As the push rod 510 moves upward, it pushes the moving disk 56 upward through the ball bearing 511. The upward movement of the moving disk 56 causes the stirring drum 54 to move upward. When the eccentric disk 57 leaves the air bladder 59, the air bladder 59 rebounds, and the pressure returns to the air bladder 59. The push rod 510 moves downward to return to its original position. At this time, the stirring drum 54 moves downward to return to its original position due to gravity. By rotating and intermittently moving up and down, the stirring drum 54 achieves the effect of uniformly stirring the zeolite molecules in the molecular sieve adsorption tank 1, making the contact between the gas and the zeolite molecules more sufficient.

[0031] Example 2

[0032] like Figures 1-6As shown, based on the same concept as Embodiment 1 above, a second embodiment is also proposed. The circulation mechanism 6 includes a pressure chamber 61 and a rotating gear 67. The pressure chamber 61 is fixedly connected to the bottom of the molecular sieve adsorption tank 1. The top and bottom of the pressure chamber 61 are respectively connected by an intake pipe 62 and an exhaust pipe 63. The end of the intake pipe 62 away from the pressure chamber 61 is close to the top of the molecular sieve adsorption tank 1, and the end of the exhaust pipe 63 away from the pressure chamber 61 is close to the bottom of the molecular sieve adsorption tank 1. The intake pipe 62 draws in the gas from the top of the molecular sieve adsorption tank 1 and discharges it to the bottom through the exhaust pipe 63 to form a circulation. Both the intake pipe 62 and the exhaust pipe 63 are equipped with one-way valves. The one-way valve in the intake pipe 62 is for one-way flow towards the inside of the pressure chamber 61, and the one-way valve in the exhaust pipe 63 is for one-way flow towards the outside of the pressure chamber 61. The external direction is unidirectional. When a negative pressure is formed in the pressure chamber 61, gas is drawn in through the suction pipe 62. When the gas in the pressure chamber 61 is squeezed, the gas is discharged through the exhaust pipe 63. A return spring 64 is installed inside the pressure chamber 61. A piston rod 65 is slidably connected to the piston inside the pressure chamber 61 through the return spring 64. A gear rod 66 is fixedly connected to the end of the piston rod 65 away from the pressure chamber 61. The gear rod 66 is L-shaped, and the teeth on the gear rod 66 are matched with the teeth on the rotating gear 67. When the rotating gear 67 rotates and its teeth mesh with the teeth on the gear rod 66, it will drive the gear rod 66 to move to the right. The rotating gear 67 is fixedly connected to the surface of the rotating shaft 52. The rotating gear 67 only has half of the teeth. When the rotating gear 67 rotates to the toothless part, it will disengage from the gear rod 66.

[0033] In this embodiment, when the rotating shaft 52 rotates, it also drives the rotating gear 67 to rotate. Initially, the rotating gear 67 rotates and its upper teeth mesh with the upper teeth of the gear 66, causing the gear 66 to move to the right. When the gear 66 moves to the right, it drives the piston rod 65 to move to the right, compressing the gas in the pressure chamber 61. The return spring 64 is compressed. When the rotating gear 67 rotates to the toothless part and disengages from the gear 66, the return spring 64 rebounds, causing the piston rod 65 to move to the left to restore its original position, thus forming a cycle. During this process, when a negative pressure is formed in the pressure chamber 61, gas is drawn in through the suction pipe 62. When the gas in the pressure chamber 61 is compressed, the gas is discharged through the exhaust pipe 63, so that the gas entering the molecular sieve adsorption tank 1 forms a cycle from top to bottom, improving the adsorption and desorption effect of the gas.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A zeolite molecular sieve adsorption-desorption device, characterized in that, The device includes a molecular sieve adsorption tank (1), with an outlet pipe (2) and an inflation pipe (3) respectively passing through and fixedly connected to the top and bottom of the molecular sieve adsorption tank (1). Both the outlet pipe (2) and the inflation pipe (3) are equipped with solenoid valves (4). A partition net (7) is fixedly connected inside the molecular sieve adsorption tank (1). The molecular sieve adsorption tank (1) is equipped with a uniform stirring mechanism (5) and a circulation mechanism (6). The uniform stirring mechanism (5) includes a motor (51), a stirring cylinder (54), and a pressure chamber (58). The motor (51) is fixedly installed at the bottom of the molecular sieve adsorption tank (1). The motor (51) is fixedly connected to a rotating shaft (52) through its output shaft. A slider (53) and an eccentric disk (57) are fixedly connected to the surface of the rotating shaft (52). A sliding groove (55) is provided on the inner wall of the stirring cylinder (54). A movable disk (56) is fixedly connected to the surface of the stirring cylinder (54). The pressure chamber (58) is fixedly connected to the inner wall of the molecular sieve adsorption tank (1). An air bladder (59) is provided at one end of the pressure chamber (58). A push rod (510) is slidably connected to the piston inside the other end of the pressure chamber (58). A ball bearing (511) is provided at the top of the push rod (510).

2. The zeolite molecular sieve adsorption-desorption device according to claim 1, characterized in that, The rotating shaft (52) is connected to the bottom of the molecular sieve adsorption tank (1) and the bottom of the separator (7) through and rotatably connected.

3. The zeolite molecular sieve adsorption-desorption device according to claim 2, characterized in that, The number of sliders (53) and grooves (55) is set to two sets, and the two sets of sliders (53) are slidably connected in the two sets of grooves (55).

4. The zeolite molecular sieve adsorption-desorption device according to claim 3, characterized in that, The eccentric disc (57) and the airbag (59) are on the same horizontal plane, and the airbag (59) is initially in an inflated state.

5. The zeolite molecular sieve adsorption-desorption device according to claim 4, characterized in that, The top of the ball (511) initially contacts the bottom of the moving disk (56).

6. The zeolite molecular sieve adsorption-desorption device according to claim 5, characterized in that, The circulation mechanism (6) includes a pressure chamber (61) and a rotating gear (67). The pressure chamber (61) is fixedly connected to the bottom of the molecular sieve adsorption tank (1). The top and bottom of the pressure chamber (61) are respectively connected to an air intake pipe (62) and an exhaust pipe (63). The air intake pipe (62) and the exhaust pipe (63) are both equipped with one-way valves. The pressure chamber (61) is equipped with a reset spring (64). The pressure chamber (61) is connected to a piston rod (65) through the reset spring (64). The piston rod (65) is fixedly connected to a gear rod (66) at the end away from the pressure chamber (61). The rotating gear (67) is fixedly connected to the surface of the rotating shaft (52).

7. The zeolite molecular sieve adsorption-desorption device according to claim 6, characterized in that, The end of the suction pipe (62) away from the pressure chamber (61) is close to the top of the molecular sieve adsorption tank (1), and the end of the exhaust pipe (63) away from the pressure chamber (61) is close to the bottom of the molecular sieve adsorption tank (1).

8. The zeolite molecular sieve adsorption-desorption device according to claim 7, characterized in that, The one-way valve inside the intake pipe (62) is for one-way flow into the pressure chamber (61), and the one-way valve inside the exhaust pipe (63) is for one-way flow into the pressure chamber (61).

9. The zeolite molecular sieve adsorption-desorption device according to claim 8, characterized in that, The rack (66) is L-shaped, and the teeth on the rack (66) are matched with the teeth on the rotating gear (67).

10. The zeolite molecular sieve adsorption-desorption device according to claim 9, characterized in that, The rotating gear (67) has only half of its teeth.

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