Spraying type gas-liquid rotary mixing equipment for petrochemical engineering center

Abstract

The utility model discloses a petrochemical engineering center jet type gas-liquid rotary mixing device, belongs to the technical field of petrochemical engineering gas-liquid mixing, and aims to solve the problems that in the prior art, although a liquid distributor is arranged in a mixing tower, gas-liquid mixing is not uniform due to the influence of blockage or bias flow and the like of the internal distributor, and the mixing effect is poor. And meanwhile, as the liquid-phase material passing through the distributor is in a liquid flow state, the gas-liquid mixing is slow, and the mixing effect is not ideal. Comprising a main body, a gas phase inlet is fixed to one side of the upper section of the main body, a rapid mixing mechanism is installed inside and outside the main body in a combined mode, a mixed liquid discharging port is formed in the bottom end inside the main body, a liquid guiding plate is fixedly arranged at the bottom end inside the mixed liquid discharging port, and a circulating mixing mechanism is installed on the side edge of the main body. The rapid mixing mechanism comprises a transmission assembly, the transmission assembly is mounted inside and above the main body, the transmission assembly comprises a hollow rotating shaft, and the periphery of the hollow rotating shaft is sleeved with annular filler.

Description

Technical Field

[0001] This utility model belongs to the field of petrochemical gas-liquid mixing technology, specifically relating to a petrochemical central jet type gas-liquid rotary mixing device. Background Technology

[0002] The mixing of MDEA solution and gaseous feed in petrochemicals has always been a key research topic in the field of petrochemical mixing technology. Existing technologies typically use large mixing towers to mix the gaseous and liquid feeds in petrochemicals, thereby obtaining a relatively homogeneous gas-liquid mixture. Large mixing towers employ a countercurrent gas-liquid flow method, where the liquid phase mixes with the gas phase from bottom to top through gravity and cross-flow.

[0003] During the operation of the aforementioned large mixing tower, although it is equipped with a liquid distributor, the gas-liquid mixing is uneven due to blockage or flow deviation of the internal distributor. At the same time, because the liquid phase material passing through the distributor is in liquid flow form, the gas-liquid mixing is slow and the mixing effect is not ideal. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a petrochemical center jet-type gas-liquid rotary mixing device. This device aims to solve the problems in existing technologies where, although the mixing tower is equipped with a liquid distributor, the gas-liquid mixing is uneven due to blockage or flow deviation of the internal distributor. Furthermore, the liquid phase material passing through the distributor is in a liquid flow state, resulting in slow gas-liquid mixing and unsatisfactory mixing effects.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides a petrochemical center jet-type gas-liquid rotary mixing device, comprising a main body, a gas phase inlet fixed to one side of the upper section of the main body, and a rapid mixing mechanism jointly installed inside and outside the main body. A mixed liquid outlet is provided at the bottom inside the main body, and a liquid guide plate is fixed at the bottom inside the mixed liquid outlet. A circulating mixing mechanism is installed on the side of the main body. The rapid mixing mechanism includes a transmission assembly installed inside and above the main body. The transmission assembly includes a hollow rotating shaft, and an annular packing is fitted around the periphery of the hollow rotating shaft. A high-pressure liquid injection assembly is jointly installed in the middle of the hollow rotating shaft and at the bottom of the main body.

[0008] Furthermore, the transmission assembly includes a rotary motor mounted on top of the main body. A hollow rotary shaft is mounted on the output end of the rotary motor. A support plate is fixedly installed in the lower internal section of the main body, and a bearing assembly is installed in the upper internal section of the main body and in the middle of the support plate. A rotary packing upper cover is fixedly installed around the upper periphery of the hollow rotary shaft, and a rotary packing lower cover is fixedly installed around the lower periphery of the hollow rotary shaft. The rotary packing upper cover and the rotary packing lower cover are respectively provided with threaded grooves around their middle periphery. The annular packing is respectively provided with limiting through holes around its middle periphery. A bolt rod is installed through the threaded groove and the limiting through hole.

[0009] Furthermore, the bolt rod has threads at both ends, and the threads at both ends of the bolt rod form threaded installation connections with the screw grooves on the upper cover and lower cover of the rotating packing, respectively.

[0010] Furthermore, the annular packing is fitted around the periphery of the hollowed-out rotating shaft, and the annular packing is an annular wavy wire mesh packing.

[0011] Furthermore, the high-pressure liquid injection assembly includes a groove, which is located at the bottom center of the main body. A high-pressure injection inlet pipe is inserted through the middle of the groove, and an inlet is provided at the end of the high-pressure injection inlet pipe. A first high-pressure nozzle is provided around the upper periphery of the high-pressure injection inlet pipe.

[0012] Furthermore, the connection between one section of the high-pressure injection inlet pipe and the grooved section is a sealed, closed connection.

[0013] Furthermore, the circulating mixing mechanism includes a fixed bracket, which is fixed to one side of the main body. A liquid pump is installed in the middle of the fixed bracket, and one end of the liquid pump is connected to a first connecting pipe. The other end of the liquid pump is connected to a second connecting pipe. A spray frame is installed in the middle of one side of the main body, and a second high-pressure nozzle is provided on the inner side of the spray frame.

[0014] Furthermore, the two ends of the first connecting pipe are respectively connected to the spray frame and the liquid pump.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] During the use of this utility model device, the operator first starts the rotary motor, which, under the action of the coupling at its end, provides power to the hollow rotary shaft connected to the output end. In this state, the hollow rotary shaft can rotate the upper and lower rotary packing covers around it. Since the inner side of the upper and lower rotary packing covers is equipped with annular packing, the annular packing can rotate synchronously. It is worth mentioning that the gap between the annular packing and the hollow rotary shaft is 0-50 mm. Then, the MDEA solution is pressurized and enters from the inlet of the high-pressure injection inlet pipe. It is uniformly sprayed out by the first high-pressure nozzles distributed around one end of the high-pressure injection inlet pipe. At the same time, the gas phase enters from the gas phase inlet. Under the operation of the above-mentioned structure, the liquid phase sprayed by the first high-pressure nozzle will be evenly distributed on the inner wall of the annular packing. As the annular packing rotates, its own wavy mesh can cut and crush larger droplets into fine mist, so that it can be better mixed with the gas phase, thereby increasing the gas-liquid contact area and improving the mixing efficiency.

[0018] When the mixture is present in the liquid accumulation area at the discharge port of this invention, in order to avoid excessive residence time and sedimentation, the operator can start the liquid pump. Guided by the first and second connecting pipes, the mixture can be transported back to the spray frame and sprayed out from the separate second high-pressure nozzle. The annular packing can then cut the liquid again, causing it to mix with the gas phase repeatedly. When all the liquid and gas are about to be mixed, the liquid pump can be stopped. At this time, the high-quality, sediment-free mixture can be discharged from the mixture discharge port to the next unit. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure;

[0022] Figure 3 This is a top view of the annular packing structure.

[0023] Figure 4 This is a schematic diagram of the internal partial structure.

[0024] The labels in the attached diagram are as follows: 1. Main body; 2. Gas phase inlet; 3. Rapid mixing mechanism; 31. Transmission assembly; 311. Rotary motor; 312. Hollowed-out rotating shaft; 313. Support plate; 314. Bearing assembly; 315. Rotating packing upper cover; 316. Rotating packing lower cover; 317. Limiting perforation; 318. Screw groove; 319. Bolt rod; 32. Annular packing; 33. High-pressure spraying assembly; 331. Grooving; 332. High-pressure spray inlet pipe; 333. Inlet; 334. First high-pressure nozzle; 4. Mixed liquid outlet; 5. Guide plate; 6. Circulating mixing mechanism; 61. Fixing bracket; 62. Liquid pump; 63. First connecting pipe; 64. Second connecting pipe; 65. Spraying frame; 66. Second high-pressure nozzle. Detailed Implementation

[0025] 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.

[0026] This specific embodiment is a jet-type gas-liquid rotary mixing device for a petrochemical center, and its structural schematic diagram is shown below. Figures 1 to 4As shown, the system includes a main body 1. A gas inlet 2 is fixed to one side of the upper section of the main body 1. A rapid mixing mechanism 3 is installed both inside and outside the main body 1. A mixed liquid outlet 4 is provided at the bottom inside the main body 1, and a guide plate 5 is fixed at the bottom inside the mixed liquid outlet 4. A circulating mixing mechanism 6 is installed on the side of the main body 1. The rapid mixing mechanism 3 includes a transmission assembly 31, which is installed inside and above the main body 1. The transmission assembly 31 includes a rotary motor 311, which is installed above the main body 1. A hollowed-out rotating shaft 312 is installed at the output end of the rotary motor 311. A support plate 313 is fixed to the lower section inside the main body 1, and a bearing assembly 314 is installed inside the upper section of the main body 1 and in the middle of the support plate 313. The hollowed-out rotating shaft... A rotating packing top cover 315 is fixedly installed around the upper periphery of the hollow rotating shaft 312, and a rotating packing bottom cover 316 is fixedly installed around the lower periphery of the hollow rotating shaft 312. The rotating packing top cover 315 and the rotating packing bottom cover 316 have threaded grooves 318 around their middle periphery, and the annular packing 32 has limiting holes 317 around its middle periphery. A bolt rod 319 is installed through the threaded grooves 318 and the limiting holes 317. The bolt rod 319 has threads at both ends, and these threads connect to the threaded grooves 318 on the rotating packing top cover 315 and the rotating packing bottom cover 316 respectively. An annular packing 32 is fitted around the periphery of the hollow rotating shaft 312. A high-pressure liquid spraying assembly 33 is jointly installed in the middle of the hollow rotating shaft 312 and below the main body 1.An annular packing 32 is fitted around the periphery of the hollow rotating shaft 312, and the annular packing 32 is an annular wavy wire mesh packing. The high-pressure spraying assembly 33 includes a slot 331, which is located at the bottom center of the main body 1. A high-pressure injection inlet pipe 332 passes through the center of the slot 331, and an inlet 333 is provided at the end of the high-pressure injection inlet pipe 332. The upper periphery of the high-pressure injection inlet pipe 332 is provided with a first high-pressure nozzle 334. The connection between one section of the high-pressure injection inlet pipe 332 and the slot 331 is sealed. During the use of the device, the operator starts the rotating motor 311 in advance. Under the action of the coupling at its end, it can provide power to the hollow rotating shaft 312 connected to the output end. In this state, the hollow rotating shaft 312 can rotate with the upper cover 315 and the lower cover 316 of the rotating packing around it. Annular packing 32 is installed inside the rotating packing top cover 315 and the rotating packing bottom cover 316, allowing the annular packing 32 to rotate synchronously. Notably, the gap between the annular packing 32 and the hollow rotating shaft 312 is 0-50 mm. Subsequently, the MDEA solution is pressurized and enters through the inlet 333 of the high-pressure injection inlet pipe 332. Simultaneously, it is evenly sprayed out by the first high-pressure nozzles 334 distributed around the perimeter of the high-pressure injection inlet pipe 332. At the same time, the gas phase enters through the gas phase inlet 2. Under the operation of the above-described structure, the liquid phase sprayed by the first high-pressure nozzles 334 is evenly distributed on the inner wall of the annular packing 32. As the annular packing 32 rotates, its own wavy mesh can cut and pulverize larger droplets into a fine mist, allowing for better mixing with the gas phase, thereby increasing the gas-liquid contact area and improving mixing efficiency.

[0027] The circulating mixing mechanism 6 includes a fixed bracket 61, which is fixed to one side of the main body 1. A liquid pump 62 is installed in the middle of the fixed bracket 61, and one end of the liquid pump 62 is connected to a first connecting pipe 63, while the other end of the liquid pump 62 is connected to a second connecting pipe 64. A spray frame 65 is installed in the middle of one side of the main body 1, and a second high-pressure nozzle 66 is provided on the inner side of the spray frame 65. The two ends of the first connecting pipe 63 are respectively connected to the spray frame 65 and the liquid pump 62. When the liquid collection area of ​​the mixed liquid outlet 4 is reached... When a mixture is present, to prevent it from settling due to prolonged residence time, personnel can start the liquid pump 62. Guided by the first connecting pipe 63 and the second connecting pipe 64, the mixture can be transported back to the spray frame 65 and sprayed out from the separate second high-pressure nozzle 66. In this way, the annular packing 32 can cut the liquid again, so that it can be mixed with the gas phase repeatedly. When all the liquid and gas are about to be mixed, the liquid pump 62 can be stopped. At this time, the high-quality, sediment-free mixture can be discharged from the mixture outlet 4 to the next unit.

[0028] Working Principle: During operation, the operator first starts the rotary motor 311, which, through the coupling at its end, provides power to the hollowed-out rotary shaft 312 connected to the output end. In this state, the hollowed-out rotary shaft 312 rotates the upper and lower sections of the rotary packing cover 315 and rotary packing cover 316. Since the upper and lower sections of the rotary packing cover 315 and rotary packing cover 316 are equipped with annular packing 32, the annular packing 32 rotates synchronously. It is worth noting that the gap between the annular packing 32 and the hollowed-out rotary shaft 312 is 0-50 mm. Then, the MDEA solution is pressurized and enters through the inlet 333 of the high-pressure injection inlet pipe 332, and is uniformly sprayed out by the first high-pressure nozzles 334 distributed around one section of the high-pressure injection inlet pipe 332. Simultaneously, the gas phase enters through the gas phase inlet 2. In the structure described above... Under operation, the liquid phase sprayed by the first high-pressure nozzle 334 will be evenly distributed on the inner wall of the annular packing 32. As the annular packing 32 rotates, its own wavy mesh can cut and crush larger droplets into fine mist, so that it can be better mixed with the gas phase, thereby increasing the gas-liquid contact area and improving the mixing efficiency. Finally, when there is mixed liquid in the liquid accumulation area of ​​the mixed liquid outlet 4, in order to avoid the formation of sediment due to excessive residence time, the personnel can start the liquid pump 62. Under the guidance of the first connecting pipe 63 and the second connecting pipe 64, the above-mentioned mixed liquid can be transported back to the spray frame 65 and sprayed out from the separate second high-pressure nozzle 66. Thus, the annular packing 32 can cut the liquid again, so that it can be repeatedly mixed with the gas phase. When all the liquid and gas are about to be mixed, the liquid pump 62 can be stopped. At this time, the high-quality, sediment-free mixed liquid can be discharged from the mixed liquid outlet 4 to the next unit.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A petrochemical central jet gas-liquid rotary mixing device comprising a main body (1), characterized in that, A gas inlet (2) is fixed on one side of the upper section of the main body (1), and a rapid mixing mechanism (3) is installed on both the inside and outside of the main body (1). A mixed liquid outlet (4) is provided at the bottom inside of the main body (1), and a liquid guide plate (5) is fixed at the bottom inside of the mixed liquid outlet (4). A circulating mixing mechanism (6) is installed on the side of the main body (1). The rapid mixing mechanism (3) includes a transmission component (31), and the transmission component (31) is installed inside and above the main body (1). The transmission component (31) includes a hollow rotating shaft (312), and an annular packing (32) is sleeved around the hollow rotating shaft (312). A high-pressure spraying component (33) is installed in the middle of the hollow rotating shaft (312) and below the main body (1).

2. A petroleum chemical central jet gas-liquid rotary mixing device according to claim 1, characterized in that, The transmission assembly (31) includes a rotary motor (311), which is mounted on the top of the main body (1). A hollow rotary shaft (312) is installed at the output end of the rotary motor (311). A support plate (313) is fixedly installed in the lower part of the interior of the main body (1). A bearing assembly (314) is installed in the upper part of the main body (1) and in the middle of the support plate (313). A rotary packing upper cover (315) is fixedly installed around the upper part of the hollow rotary shaft (312), and a rotary packing lower cover (316) is fixedly installed around the lower part of the hollow rotary shaft (312). A screw groove (318) is provided in the middle periphery of the rotary packing upper cover (315) and the rotary packing lower cover (316). A limiting through hole (317) is provided in the middle periphery of the annular packing (32). A bolt rod (319) is installed through the screw groove (318) and the limiting through hole (317).

3. A petroleum chemical central jet gas-liquid rotary mixing device according to claim 2, characterized in that, The bolt rod (319) has threads at both ends, and the threads at both ends of the bolt rod (319) form threaded installation connections with the screw grooves (318) on the upper cover (315) and lower cover (316) of the rotating packing respectively.

4. The center jet gas-liquid rotary mixing device for petrochemical industry according to claim 1, characterized in that, The annular packing (32) is sleeved around the hollow rotating shaft (312), and the annular packing (32) is an annular wavy wire mesh packing.

5. The center jet gas-liquid rotary mixing device for petrochemical industry according to claim 1, characterized in that, The high-pressure liquid injection assembly (33) includes a slot (331), which is located at the bottom center of the main body (1). A high-pressure injection inlet pipe (332) is inserted through the middle of the slot (331), and an inlet (333) is provided at the end of the high-pressure injection inlet pipe (332). A first high-pressure nozzle (334) is provided around the upper section of the high-pressure injection inlet pipe (332).

6. A petroleum chemical central jet gas-liquid rotary mixing device according to claim 5, characterized in that, The high-pressure injection inlet pipe (332) is connected to the slotted section (331) in a sealed manner.

7. A petroleum chemical central jet gas-liquid rotary mixing device according to claim 1, characterized in that, The circulating mixing mechanism (6) includes a fixed bracket (61) and the fixed bracket (61) is fixed to one side of the main body (1). A liquid pump (62) is installed in the middle of the fixed bracket (61), and one end of the liquid pump (62) is connected to a first connecting pipe (63). The other end of the liquid pump (62) is connected to a second connecting pipe (64). A spray frame (65) is installed in the middle of one side of the main body (1), and a second high-pressure nozzle (66) is provided on the inner side of the spray frame (65).

8. A petroleum chemical central jet gas-liquid rotary mixing device according to claim 7, characterized in that, The two ends of the first connecting pipe (63) are connected to the spray frame (65) and the liquid pump (62), respectively.

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