A physical absorption still

Abstract

The utility model discloses a physical absorption cauldron, including the reation kettle, the inside of reation kettle upper end is equipped with the baffle, and the air inlet of reation kettle upper end middle part is equipped with the air inlet pipe, and the discharge port of reation kettle lower extreme is equipped with the discharge pipe, and the bottom wall rotation of discharge pipe is connected with the rotating shaft, and the outer wall fixed sleeve of rotating shaft located discharge pipe inside is equipped with the spiral blade, and the outer wall fixed sleeve of rotating shaft located reation kettle inside is equipped with the stirring rod of uniform distribution, still include rotating air inlet mechanism, rotating air inlet mechanism: it includes swivel joint, sealed bearing, gas pipe and gas outlet, the middle part of baffle is connected with gas pipe through sealed bearing and rotates, and the gas outlet of gas pipe outer surface is equipped with gas outlet respectively, and the lower extreme fixed connection of air inlet pipe has swivel joint, and the upper end fixed connection of swivel joint rotating end and gas pipe, this physical absorption cauldron, and the gas dispersion is small gas bubble for gas outlet rotation, and the gas -liquid contact area is wider, and the absorption effect is better.

Description

Technical Field

[0001] This utility model relates to the field of fine chemical and pharmaceutical process research and development technology, specifically a physical absorption vessel. Background Technology

[0002] In the field of fine chemicals, products such as rebamipide, dibromobutenediol, acetoxyisobutyryl chloride, anhydrous lithium bromide, monomethylamine methanol solution, tetradecyltrimethylammonium bromide, and 2-hydroxyisobutyric acid are widely used and crucial. Rebamipide, as a key pharmaceutical ingredient for treating diseases such as gastric ulcers, has its synthesis process directly impacting drug quality and production scale. Dibromobutenediol is commonly used as an organic synthesis intermediate, and its purification effect affects the purity and performance of subsequent reaction products. Acetoxyisobutyryl chloride plays an important role in the preparation of chemical raw materials, and the efficiency and cost of its preparation process affect the economic benefits of the industrial chain. Anhydrous bromine... Lithium chloride is indispensable in the refrigeration industry, and the crystallization process is of great significance to its quality and application effect. Methylamine methanol solution is a commonly used reagent in chemical production, and the absorption process determines the raw material utilization rate and environmental protection level. Tetradecyltrimethylammonium bromide is widely used in surfactants and other fields, and the refining process affects its product quality and market competitiveness. 2-Hydroxyisobutyric acid is an important raw material for organic synthesis, and the optimization of the catalytic synthesis process is crucial to improving production efficiency and product quality. A physical absorption vessel is an industrial device used for gas purification or gas mixture separation, which mainly removes specific components from the gas through a physical absorption process.

[0003] In some existing physical absorption reactors, when absorbing materials, air is introduced through an air inlet pipe fixed to the bottom or side wall of the reactor, and then a stirring rod driven by a motor rotates to allow the gas to react with the materials.

[0004] Existing physical absorption reactors of this type have the following problems: when absorbing materials, fixed jets easily form bubble accumulation zones, the gas-liquid contact area is fixed, and the absorption effect is poor. To address this, we propose a physical absorption reactor. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a physical absorption vessel. When absorbing materials, the gas outlet rotates to disperse the gas into tiny bubbles, resulting in a wider gas-liquid contact area and better absorption effect, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a physical absorption vessel, including a reaction vessel, wherein a partition is provided inside the upper end of the reaction vessel, an air inlet is provided at the air inlet in the middle of the upper end of the reaction vessel, and a discharge pipe is provided at the discharge outlet at the lower end of the reaction vessel. A rotating shaft is rotatably connected to the bottom wall of the discharge pipe, a spiral blade is fixedly sleeved on the outer wall of the rotating shaft located inside the discharge pipe, and uniformly distributed stirring rods are fixedly sleeved on the outer wall of the rotating shaft located inside the reaction vessel. The invention also includes a rotating air inlet mechanism.

[0007] Rotary air intake mechanism: It includes a rotary joint, a sealed bearing, an air pipe and an air outlet. The air pipe is rotatably connected to the middle of the partition through the sealed bearing. An air outlet is provided at the air outlet on the outer surface of the air pipe. The rotary joint is fixedly connected to the lower end of the air intake pipe. The rotating end of the rotary joint is fixedly connected to the upper end of the air pipe. When absorbing and reacting materials, the rotation of the air outlet causes the gas to be dispersed into tiny bubbles, resulting in a wider gas-liquid contact area and better absorption effect.

[0008] Furthermore, a microcontroller is installed outside the reactor, and the input terminal of the microcontroller is electrically connected to an external power source to provide electrical connections for various electrical components.

[0009] Furthermore, the rotary intake mechanism also includes a drive assembly, which includes a dial wheel, gears, and shift pins. The outer wall of the rotary joint is fixedly fitted with a dial wheel. The upper end of the partition is rotatably connected to evenly distributed gears via a shift pin. The two gears are meshed together. The upper ends of the gears are respectively provided with evenly distributed shift pins. The shift pins are all installed in conjunction with the grooves at the edge of the dial wheel to provide a rotatable connection.

[0010] Furthermore, the drive assembly also includes a motor and an L-shaped bracket. The upper end of the partition is provided with an L-shaped bracket, and the upper end of the L-shaped bracket is provided with a motor. The lower end of the output shaft of the motor is fixedly connected to the upper end of the rear rotating column. The input end of the motor is electrically connected to the output end of the microcontroller to provide rotation drive.

[0011] Furthermore, a feed pipe is provided at the feed inlet at the upper end of the reactor to facilitate feeding.

[0012] Furthermore, a pressure sensor is provided at the upper edge of the reactor, and an outlet pipe is provided at the upper outlet of the reactor. A pressure relief valve is fixedly sleeved on the outer wall of the outlet pipe. Both the pressure sensor and the pressure relief valve are bidirectionally electrically connected to the microcontroller to facilitate pressure relief.

[0013] Furthermore, a second motor is provided at the lower end of the discharge pipe. The upper end of the output shaft of the second motor is fixedly connected to the lower end of the rotating shaft. A solenoid valve is connected in series at the front end of the discharge pipe. The input ends of the second motor and the solenoid valve are both electrically connected to the output end of the microcontroller to provide stirring drive.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This physical absorption vessel has the following advantages:

[0015] Driven by motor one, the rotating column drives two gears to mesh and rotate. The two gears realize the transmission of speed and the conversion of direction. The gears realize the intermittent motion of turning and disengaging through the grooves on the edge of the dial and the dial wheel. The dial wheel drives the gas tube to swing back and forth in a circumferential direction through the rotary joint, thereby making the gas intake and material contact wider. When absorbing and reacting chemical materials, the rotation of the gas outlet head disperses the gas into tiny bubbles, resulting in a wider gas-liquid contact area and better physical absorption effect of chemical materials. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0019] Figure 4 This is an enlarged structural diagram of section B of the present invention.

[0020] In the diagram: 1. Reactor, 2. Baffle, 3. Feed pipe, 4. Pressure sensor, 5. Inlet pipe, 6. Outlet pipe, 7. Pressure relief valve, 8. Rotary inlet mechanism, 81. Rotary joint, 82. Sealed bearing, 83. Gas pipe, 84. Outlet head, 85. Drive assembly, 851. Dial wheel, 852. Gear, 853. Dial column, 854. Motor 1, 855. L-shaped bracket, 9. Outlet pipe, 10. Spiral blade, 11. Stirring rod, 12. Motor 2, 13. Solenoid valve, 14. Microcontroller, 15. Rotary shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This embodiment provides a technical solution: a physical absorption vessel, including a reaction vessel 1, with a baffle 2 inside the upper end of the reaction vessel 1, an air inlet pipe 5 at the air inlet in the middle of the upper end of the reaction vessel 1, and a discharge pipe 9 at the discharge outlet at the lower end of the reaction vessel 1. A rotating shaft 15 is rotatably connected to the bottom wall of the discharge pipe 9, and a spiral blade 10 is fixedly sleeved on the outer wall of the rotating shaft 15 inside the discharge pipe 9. Evenly distributed stirring rods 11 are fixedly sleeved on the outer wall of the rotating shaft 15 inside the reaction vessel 1. It also includes a rotating air inlet mechanism 8, and a microcontroller 14 is installed outside the reaction vessel 1. The input terminal of the microcontroller 14 is electrically connected to an external power supply. A feed pipe 3 is installed at the feed inlet at the upper end of the reactor 1. A pressure sensor 4 is installed at the edge of the upper end of the reactor 1. An outlet pipe 6 is installed at the outlet at the upper end of the reactor 1. A pressure relief valve 7 is fixedly sleeved on the outer wall of the outlet pipe 6. Both the pressure sensor 4 and the pressure relief valve 7 are bidirectionally electrically connected to the microcontroller 14. A second motor 12 is installed at the lower end of the discharge pipe 9. The upper end of the output shaft of the second motor 12 is fixedly connected to the lower end of the rotating shaft 15. A solenoid valve 13 is connected in series at the front end of the discharge pipe 9. The input terminals of both the second motor 12 and the solenoid valve 13 are... The output terminal of the microcontroller 14 is electrically connected. During the research and development of fine chemical and pharmaceutical processes, when physically absorbing chemical materials, the material is first injected into the reactor 1 through the feed pipe 3. Simultaneously, the pressure sensor 4 continuously monitors the gas pressure inside the reactor 1 and transmits the data to the microcontroller 14. When gas absorption is incomplete or the gas flow fluctuates, causing the pressure to exceed the threshold, a safety mechanism is triggered. After receiving the overpressure signal, the microcontroller 14 controls the pressure relief valve 7 to open, releasing excess gas through the outlet pipe 6, allowing the pressure to quickly drop back to a safe range, preventing equipment overload. Simultaneously, it... The microcontroller 14 controls the operation of motor 12. The output shaft of motor 12 drives the rotating shaft 15 to rotate, which in turn drives the stirring rod 11 to rotate. The stirring rod 11 stirs the material inside the reactor 1, making the mixture of material and gas more uniform and improving the absorption effect. After absorption, the microcontroller 14 controls the operation of motor 12 and solenoid valve 13 simultaneously. When solenoid valve 13 opens, the output shaft of motor 12 drives the rotating shaft 15 to rotate, which in turn drives the spiral blade 10. The spiral blade 10 then drives the material to be discharged from the discharge pipe 9.

[0023] Rotary air intake mechanism 8: It includes a rotary joint 81, a sealed bearing 82, an air pipe 83, and an air outlet 84. The air pipe 83 is rotatably connected to the middle of the partition 2 via the sealed bearing 82. Air outlets 84 are respectively provided at the air outlets on the outer surface of the air pipe 83. The lower end of the air intake pipe 5 is fixedly connected to the rotary joint 81, and the rotating end of the rotary joint 81 is fixedly connected to the upper end of the air pipe 83. (The fixed end of the rotary joint 81 is fixedly connected to the lower end of the air intake pipe 5, and the rotating end of the rotary joint 81 is fixedly connected to the upper end of the air pipe 83. Long-term use may lead to water leakage due to wear of the seals.) The rotary intake mechanism 8 also includes a drive assembly 85, which includes a dial wheel 851, gears 852, and shift pins 853. The dial wheel 851 is fixedly sleeved on the outer wall of the rotary joint 81. The upper end of the partition 2 is rotatably connected to evenly distributed gears 852 via a shift pin. The two gears 852 are meshed together. The upper end of each gear 852 is provided with evenly distributed shift pins 853. The shift pins 853 are all installed in conjunction with the grooves on the edge of the dial wheel 851. The drive assembly 85 also includes a motor 854 and an L-shaped bracket 85. 5. An L-shaped bracket 855 is provided at the upper end of the partition 2. A motor 854 is provided at the upper end of the L-shaped bracket 855. The lower end of the output shaft of the motor 854 is fixedly connected to the upper end of the rear rotating column. The input end of the motor 854 is electrically connected to the output end of the microcontroller 14. Then, external gas is connected through the air inlet pipe 5, enters the rotary joint 81 and the air pipe 83, and is injected into the reaction vessel 1 from the air outlet 84. Then, the motor 854 is operated by the microcontroller 14. The output shaft of the motor 854 drives the rear gear 852 to rotate through the rotating column. The two gears 852 are in phase. The meshing mechanism enables speed transmission and direction conversion, causing the front gear 852 to rotate synchronously. The pin 853 at the upper end of the gear 852 rotates with the gear and sequentially engages with the groove on the edge of the dial wheel 851. Through intermittent movements of engagement and disengagement, when the front pin 853 engages with the groove on the edge of the dial wheel 851, it pushes the dial wheel 851 to rotate clockwise. After the front pin 853 disengages from the groove, the rear pin 853 engages with the groove counterclockwise, ultimately causing the dial wheel to drive the air pipe 83 to oscillate in a circular direction, thereby increasing the contact between the gas intake and the material.

[0024] The working principle of the physical absorption vessel provided by this utility model is as follows: In the research and development of fine chemical and pharmaceutical processes, when physically absorbing chemical materials, the material is first injected into the interior of the reaction vessel 1 through the feed pipe 3. Then, external gas is connected through the gas inlet pipe 5, and injected into the reaction vessel 1 through the gas outlet 84 via the rotary joint 81 and the gas pipe 83. Next, the motor 854 is operated by the microcontroller 14. The output shaft of the motor 854 drives the rear gear 852 to rotate through the rotating column. The gears 852 mesh with each other to achieve speed transmission and direction conversion, causing the front gear 852 to rotate synchronously. The shift pins 853 at the upper end of the gear 852 rotate with the gear and sequentially engage with the grooves on the edge of the shift wheel 851. Through intermittent movements of shifting and disengaging, when the front shift pin 853 engages with the groove on the edge of the shift wheel 851, it pushes the shift wheel 851 to rotate clockwise; after the front shift pin 853 disengages from the groove, the rear shift pin 853 engages with the groove counterclockwise, ultimately causing the shift wheel to drive the air tube 83 to form a circle. The reciprocating oscillation in the circumferential direction allows for wider contact between the gas and the material. Simultaneously, pressure sensor 4 continuously monitors the gas pressure inside reactor 1 and transmits the data to microcontroller 14. When gas absorption is incomplete or the gas flow fluctuates, causing the pressure to exceed the threshold, a safety mechanism is triggered. Upon receiving the overpressure signal, microcontroller 14 controls the pressure relief valve 7 to open, releasing excess gas through the outlet pipe 6, allowing the pressure to quickly return to a safe range and preventing equipment overload. Simultaneously, microcontroller 14 controls motor 12 to operate. The output shaft of motor 12 drives the rotating shaft 15 to rotate, which in turn drives the stirring rod 11 to rotate. The stirring rod 11 stirs the material inside reactor 1, resulting in a more uniform mixture of material and gas, thus improving absorption. After absorption, microcontroller 14 controls motor 12 and solenoid valve 13 to operate simultaneously. Solenoid valve 13 opens, and the output shaft of motor 12 drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the spiral blade 10, which in turn discharges the material from the outlet pipe 9.

[0025] It is worth noting that the pressure sensor 4, pressure relief valve 7, motor 854, motor 12, and solenoid valve 13 disclosed in the above embodiments are as follows: pressure sensor 4 can be 3051-DP, pressure relief valve 7 can be RXAF-S15 / 1.0, motor 854 can be SD3729-24-1500-F, motor 12 can be 35BYJ412H, and solenoid valve 13 can be 421F35. The microcontroller 14 controls the operation of pressure sensor 4, pressure relief valve 7, motor 854, motor 12, and solenoid valve 13 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A physical absorption vessel, comprising a reaction vessel (1), wherein a partition (2) is provided inside the upper end of the reaction vessel (1), an air inlet pipe (5) is provided at the air inlet in the middle of the upper end of the reaction vessel (1), and a discharge pipe (9) is provided at the discharge outlet at the lower end of the reaction vessel (1). A rotating shaft (15) is rotatably connected to the bottom wall of the discharge pipe (9), a spiral blade (10) is fixedly sleeved on the outer wall of the rotating shaft (15) located inside the discharge pipe (9), and uniformly distributed stirring rods (11) are fixedly sleeved on the outer wall of the rotating shaft (15) located inside the reaction vessel (1), characterized in that: It also includes a rotary air intake mechanism (8); Rotary air intake mechanism (8): It includes a rotary joint (81), a sealed bearing (82), an air pipe (83) and an air outlet (84). The air pipe (83) is rotatably connected to the middle part of the partition (2) through the sealed bearing (82). An air outlet (84) is provided at the air outlet on the outer surface of the air pipe (83). The rotary joint (81) is fixedly connected to the lower end of the air intake pipe (5). The rotating end of the rotary joint (81) is fixedly connected to the upper end of the air pipe (83).

2. The physical absorption vessel according to claim 1, characterized in that: The reactor (1) is equipped with a microcontroller (14) on its exterior, and the input terminal of the microcontroller (14) is electrically connected to an external power source.

3. The physical absorption vessel according to claim 2, characterized in that: The rotary intake mechanism (8) further includes a drive assembly (85), which includes a dial wheel (851), a gear (852), and a shift post (853). The outer wall of the rotary joint (81) is fixedly fitted with the dial wheel (851). The upper end of the partition plate (2) is rotatably connected to a uniformly distributed gear (852) via a shift post. The two gears (852) are meshed together. The upper end of the gears (852) is provided with uniformly distributed shift posts (853). The shift posts (853) are all installed in conjunction with the grooves at the edge of the dial wheel (851).

4. The physical absorption vessel according to claim 3, characterized in that: The drive assembly (85) also includes a motor (854) and an L-shaped bracket (855). The upper end of the partition (2) is provided with an L-shaped bracket (855), and the upper end of the L-shaped bracket (855) is provided with a motor (854). The lower end of the output shaft of the motor (854) is fixedly connected to the upper end of the rear rotating column, and the input end of the motor (854) is electrically connected to the output end of the microcontroller (14).

5. The physical absorption vessel according to claim 1, characterized in that: The reactor (1) is equipped with a feed pipe (3) at the feed inlet at the upper end.

6. The physical absorption vessel according to claim 2, characterized in that: A pressure sensor (4) is provided at the upper edge of the reactor (1), and an outlet pipe (6) is provided at the outlet of the reactor (1). A pressure relief valve (7) is fixedly sleeved on the outer wall of the outlet pipe (6). The pressure sensor (4) and the pressure relief valve (7) are both bidirectionally electrically connected to the microcontroller (14).

7. The physical absorption vessel according to claim 2, characterized in that: The lower end of the discharge pipe (9) is equipped with a second motor (12). The upper end of the output shaft of the second motor (12) is fixedly connected to the lower end of the rotating shaft (15). The front end of the discharge pipe (9) is connected in series with a solenoid valve (13). The input ends of the second motor (12) and the solenoid valve (13) are electrically connected to the output end of the microcontroller (14).

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