Petrochemical engineering internal drive type gas-liquid mixing rotating bed equipment
By utilizing gas and liquid phase nozzles to provide power in a petrochemical internally driven gas-liquid mixing rotary bed device, cross-flow of gas and liquid is achieved, solving the problems of large-scale mixing towers having large footprints, high investment, and high power consumption, and realizing highly efficient gas-liquid mixing.
Patent Information
- Application Number
- CN202520188515.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing large-scale mixing towers occupy a large area, require significant investment, and have unsatisfactory mixing effects. At the same time, stirring requires a large amount of electrical energy.
Design a petrochemical internally driven gas-liquid mixing rotary bed device. Gas and liquid are sprayed onto the drive blades through gas and liquid nozzles. The jet pressure of gas and liquid provides power to the rotating shaft, causing gas and liquid to flow in a cross-flow pattern, achieving full mixing and avoiding additional energy consumption.
It achieves more uniform and efficient gas-liquid mixing without consuming additional energy, reducing equipment footprint and investment costs.
Smart Images
Figure CN223774842U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gas-liquid mixing technology, specifically relating to a petrochemical internally driven gas-liquid mixing rotary bed device. Background Technology
[0002] In the field of petrochemical mixing technology, the mixing of MDEA solution with gaseous feed has always been a key research topic. When conducting research, large mixing towers or large agitators are often required to mix the gas and liquid to obtain a relatively uniform gas-liquid mixture.
[0003] Currently, existing large-scale mixing towers use a gas-liquid countercurrent method. Due to factors such as blockage or flow deviation of the internal distributor, the gas-liquid mixing is uneven. At the same time, large-scale mixing towers occupy a large area, require large investments, and have unsatisfactory mixing effects. Large agitators provide mixing power through motors, which not only has a long mixing time, thus limiting production capacity, but also requires a large amount of electricity for mixing, resulting in huge operating costs.
[0004] Therefore, to address the problems of existing large-scale mixing towers being large in size, requiring significant investment, having unsatisfactory mixing effects, and consuming large amounts of electricity for stirring, a petrochemical internally driven gas-liquid mixing rotary bed device can be designed. Gas is introduced from the gas inlet via gas-phase nozzles and sprayed onto gas-driven blades to rotate the gas. Simultaneously, liquid is introduced from the liquid inlet via liquid-phase nozzles and sprayed onto liquid-driven blades. The gas flows from bottom to top, creating a cross-flow with the liquid flow direction, thus achieving thorough mixing. Utility Model Content
[0005] To overcome the problems of existing large-scale mixing towers, such as large footprint, high investment, unsatisfactory mixing effect, and high energy consumption for stirring.
[0006] The technical solution of this utility model is as follows: a petrochemical internally driven gas-liquid mixing rotary bed device, comprising a rotary bed shell composed of a top shell, a bottom shell, and a connecting shell; further comprising gas-driven blades and liquid-driven blades, a connecting shell with its top end tightly attached to the bottom end of the top shell at the lower end of the top shell, a bottom shell with its top end tightly attached to the bottom end of the connecting shell at the lower end of the connecting shell, a gas phase inlet at the left end of the bottom shell, a gas-driven blade located to the right of the gas phase inlet inside the bottom shell, a gas phase nozzle arranged in a ring and communicating with the gas phase inlet inside the bottom shell, a liquid phase inlet at the right side of the top shell, a liquid-driven blade inside the top shell, a plurality of liquid phase nozzles arranged in a ring inside the top shell, a rotating shaft movably connected inside the rotary bed shell, and liquid fragmentation fins fixedly connected to the outside of the rotating shaft.
[0007] Preferably, gas is introduced into the gas phase nozzle through the gas phase inlet and sprayed onto the gas-driven blades, while liquid is poured into the liquid phase nozzle through the liquid phase inlet and sprayed onto the liquid-driven blades. The liquid is broken into a mist by the centrifugal force of the rotating shaft and mixed with the gas feed after being broken into a stream. Finally, the liquid is discharged from the top to the bottom by gravity, and the gas flows from the bottom to the top, forming a cross-flow with the liquid flow, thus achieving full mixing. The jet pressure of the liquid and gas phase feeds provides power to the rotating shaft.
[0008] Preferably, the top shell has a gas phase outlet at the top and the bottom shell has a liquid phase outlet at the bottom.
[0009] As a preferred embodiment, a No. 1 boss is fixedly connected inside the top shell, and a No. 1 liquid collection hopper is installed on the No. 1 boss.
[0010] Preferably, a second boss is fixedly connected inside the connecting shell, located below the first boss. A second liquid hopper is installed on the second boss, and an upper plate is installed below the second liquid hopper.
[0011] Preferably, a third boss is fixedly connected inside the bottom shell, located below the second boss, and a lower plate is installed on the third boss.
[0012] Preferably, a No. 1 fixed flange is installed at the connection between the top shell and the connecting shell, and a No. 2 fixed flange is installed at the connection between the connecting shell and the bottom shell.
[0013] Preferably, an annular packing is provided between the upper plate and the lower plate, and a support rod is inserted into the annular packing between the upper plate and the lower plate.
[0014] The beneficial effects of this utility model are:
[0015] By installing gas-phase nozzles inside the rotating bed housing, the gas-phase nozzles spray gas from the gas inlet onto the gas-driven blades, thereby providing gas-phase power to the shaft. Liquid-phase nozzles are installed inside the rotating bed housing, spraying liquid from the liquid inlet onto the liquid-driven blades, thereby providing liquid-phase power to the shaft. At the same time, the gas flows from bottom to top and forms a cross-flow with the liquid flow direction, thus achieving thorough mixing. The liquid, through the centrifugal force generated by the rotation of the rotating shaft, is broken into a mist by the annular packing and mixed with the gas feed, then re-converges into a flow. Finally, the liquid is discharged from top to bottom by gravity. The rotating shaft is powered by the jet pressure of the liquid and gas feeds, without consuming any other energy. Attached Figure Description
[0016] Figure 1 The diagram shown is a schematic representation of the internal structure of a petrochemical internally driven gas-liquid mixing rotary bed device according to this utility model.
[0017] Figure 2The diagram shown is a first three-dimensional structural schematic of a petrochemical internally driven gas-liquid mixing rotary bed device according to this utility model.
[0018] Figure 3 The diagram shown is a schematic representation of the internal structure of the top shell of a petrochemical internally driven gas-liquid mixing rotary bed device according to this utility model.
[0019] Figure 4 The diagram shown is a schematic representation of the internal structure of the bottom shell of a petrochemical internally driven gas-liquid mixing rotary bed device according to this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Top shell; 2. Bottom shell; 3. Connecting shell; 4. Gas-driven blade; 5. Liquid-driven blade; 6. Gas phase inlet; 7. Gas phase nozzle; 8. Liquid phase inlet; 9. Liquid phase nozzle; 10. Rotating shaft; 11. Liquid fragmentation fin; 12. Gas phase outlet; 13. Liquid phase outlet; 14. Boss No. 1; 15. Liquid collection hopper No. 1; 16. Boss No. 2; 17. Liquid collection hopper No. 2; 18. Upper plate; 19. Boss No. 3; 20. Lower plate; 21. Fixed flange No. 1; 22. Fixed flange No. 2; 23. Annular packing; 24. Support rod. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-4 This utility model provides an embodiment: a petrochemical internally driven gas-liquid mixing rotary bed device, including a rotary bed shell composed of a top shell 1, a bottom shell 2, and a connecting shell 3; it also includes gas-driven blades 4 and liquid-driven blades 5. A connecting shell 3 with its top end tightly attached to the bottom end of the top shell 1 is provided at the lower end of the top shell 1, and a bottom shell 2 with its top end tightly attached to the bottom end of the connecting shell 3 is provided at the lower end of the connecting shell 3. A gas phase inlet 6 is opened at the left end of the bottom shell 2, and a gas-driven blade 4 located to the right of the gas phase inlet 6 is provided inside the bottom shell 2. Gas phase nozzles 7 arranged in a ring and identical to those at the gas phase inlet 6 are provided inside the bottom shell 2. A liquid phase inlet 8 is opened on the right side of the top shell 1, and a liquid-driven blade 5 is provided inside the top shell 1. The rotating bed is equipped with multiple liquid phase nozzles 9 arranged in a ring. A rotating shaft 10 is movably connected inside the rotating bed shell. Liquid fragmentation fins 11 are fixedly connected to the outside of the rotating shaft 10. Gas is introduced into the gas phase nozzle 7 through the gas phase inlet and sprayed onto the gas-driven blade 4. Liquid is poured into the liquid phase nozzle 9 through the liquid phase inlet and sprayed onto the liquid-driven blade 5. The liquid is broken into a mist by the centrifugal force generated by the rotation of the rotating shaft 10 and mixed with the gas feed through the annular packing 23. It then re-converges into a flow. Finally, the liquid is discharged from the top to the bottom by gravity. The gas flows from the bottom to the top and forms a cross-flow with the liquid flow direction, thus fully mixing. The jet pressure of the liquid and gas feed provides power to the rotating shaft 10.
[0023] Please see Figures 1-3 In this embodiment, a gas phase outlet 12 is provided at the top of the top shell 1, and a liquid phase outlet 13 is provided at the bottom of the bottom shell 2. The gas flows from bottom to top and forms a cross-flow with the liquid flow direction, thereby fully mixing. The excess gas is discharged from the upper gas phase outlet 12, and the liquid is collected from top to bottom by gravity and discharged from the liquid phase outlet 13. A first boss 14 is fixedly connected inside the top shell 1, and a first liquid hopper 15 is installed on the first boss 14. The first boss 14 supports the first liquid hopper 15. A second boss 16 is fixedly connected inside the connecting shell 3 and is located below the first boss 14. A second liquid collection hopper 17 is installed on the top of the 16, and an upper plate 18 is installed below the second liquid collection hopper 17. The second boss 16 supports the second liquid collection hopper 17. The first-stage and second-stage liquid collection hoppers collect the liquid that is jetted onto the liquid phase drive blades and converges it onto the central shaft of the rotating bed, thereby improving the liquid fragmentation effect of the liquid fragmentation fins 11 and reducing the friction force generated by the direct contact between the liquid phase fluid and the upper pressure plate of the rotating packing, thereby reducing the influence of the liquid flow on the rotation speed of the rotating component. A third boss 19 is fixedly connected inside the bottom shell 2 and is located below the second boss 16. A lower plate 20 is installed on the third boss 19.
[0024] Please see Figures 1-2 In this embodiment, a first fixing flange 21 is installed at the connection between the top shell 1 and the connecting shell 3, and a second fixing flange 22 is installed at the connection between the connecting shell 3 and the bottom shell 2. The three sections of the rotating bed shell are fixed by the first fixing flange 21 and the second fixing flange 22. An annular packing 23 is provided between the upper plate 18 and the lower plate 20. A support rod 24 is inserted into the annular packing 23 and is provided between the upper plate 18 and the lower plate 20. Each layer of sheet-like annular packing 23 is supported and fixed in the middle of the upper and lower pressure plates by the support rod 24. The number of support rods 24 is 2 to 20. The annular packing 23 is a plate-shaped annular structure with raised teeth, so that the droplets with centrifugal force are repeatedly thrown on the raised teeth to form a fine mist, thereby increasing the contact area between the droplets and the gas phase.
[0025] During the operation, the workers first fix the top shell 1 to the top of the connecting shell 3 by inserting the fixing bolts into the first fixing flange 21, and then fix the bottom shell 2 to the bottom of the connecting shell 3 by inserting the fixing bolts into the second fixing flange 22.
[0026] Gas is introduced into the gas phase nozzle 7 from the gas phase inlet and sprayed onto the gas-driven blade 4. Liquid is introduced into the liquid phase inlet, passes through the liquid phase nozzle 9 and is sprayed onto the liquid-driven blade 5. The gas-driven blade 4 and the liquid-driven blade 5 drive the rotating shaft 10 to rotate. After receiving the liquid phase feed from the primary and secondary liquid hoppers, the high-speed rotating liquid-breaking fins 11 break the liquid flow into droplets. Under the action of centrifugal force, the droplets are evenly scattered onto the surrounding annular packing 23.
[0027] The centrifugal force generated by the rotation of the rotating shaft 10 breaks the liquid into a mist after it passes through the annular packing 23 and mixes with the gas feed. The liquid then re-converges into a flow. Finally, the liquid is discharged from the liquid phase outlet 13 after converging from top to bottom by gravity. The gas flows from bottom to top and forms a cross-flow with the liquid flow direction, thus fully mixing. Excess gas is discharged from the gas phase outlet 12 at the top.
[0028] Through the above steps, a gas phase nozzle 7 is installed inside the rotating bed shell. The gas phase nozzle 7 sprays the gas in the gas phase inlet onto the gas-driven blade 4, thereby providing gas phase power to the shaft. A liquid phase nozzle 9 is installed inside the rotating bed shell. The liquid phase nozzle 9 sprays the liquid in the liquid phase inlet onto the liquid-driven blade 5, thereby providing liquid phase power to the shaft. At the same time, the gas flows from bottom to top and forms a cross-flow with the liquid flow direction, thereby fully mixing. The liquid is broken into a mist by the centrifugal force generated by the rotation of the rotating shaft 10 and mixed with the gas feed by the annular packing 23. It then re-converges into a flow. Finally, the liquid is discharged after converging from top to bottom by gravity. The rotating shaft 10 is powered by the jet pressure of the liquid and gas feeds, without consuming other energy. This solves the problems of existing large-scale mixing towers that occupy a large area, have high investment, and have unsatisfactory mixing effect, while requiring a large amount of electricity for stirring.
Claims
1. A petrochemical internally driven gas-liquid mixing rotary bed device, comprising a rotary bed shell composed of a top shell (1), a bottom shell (2), and a connecting shell (3); characterized in that: It also includes a gas-driven blade (4) and a liquid-driven blade (5). The lower end of the top shell (1) is provided with a connecting shell (3) whose top end is close to the bottom end of the top shell (1). The lower end of the connecting shell (3) is provided with a bottom shell (2) whose top end is close to the bottom end of the connecting shell (3). A gas phase inlet (6) is opened at the left end of the bottom shell (2). A gas-driven blade (4) located to the right of the gas phase inlet (6) is provided inside the bottom shell (2). A gas phase nozzle (7) arranged in a ring and communicating with the gas phase inlet (6) is provided inside the bottom shell (2). A liquid phase inlet (8) is opened on the right side of the top shell (1). A liquid-driven blade (5) is provided inside the top shell (1). A plurality of liquid phase nozzles (9) arranged in a ring are provided inside the top shell (1). A rotating shaft (10) is movably connected inside the rotating bed shell. A liquid fragment fin (11) is fixedly connected to the outside of the rotating shaft (10).
2. The petrochemical internally driven gas-liquid mixing rotary bed equipment according to claim 1, characterized in that: The top shell (1) has a gas phase outlet (12) at its top end, and the bottom shell (2) has a liquid phase outlet (13) at its bottom end.
3. The petrochemical internally driven gas-liquid mixing rotary bed equipment according to claim 1, characterized in that: A boss (14) is fixedly connected inside the top shell (1), and a liquid collection hopper (15) is installed on the boss (14).
4. A petrochemical internally driven gas-liquid mixing rotary bed device according to claim 3, characterized in that: A second boss (16) is fixedly connected inside the connecting shell (3) and located below the first boss (14). A second liquid hopper (17) is installed on the second boss (16) and an upper plate (18) is installed below the second liquid hopper (17).
5. A petrochemical internally driven gas-liquid mixing rotary bed device according to claim 4, characterized in that: The bottom shell (2) is fixedly connected to the third boss (19) located below the second boss (16), and the lower plate (20) is installed on the third boss (19).
6. The petrochemical internally driven gas-liquid mixing rotary bed equipment according to claim 1, characterized in that: A first fixed flange (21) is installed at the connection between the top shell (1) and the connecting shell (3), and a second fixed flange (22) is installed at the connection between the connecting shell (3) and the bottom shell (2).
7. A petrochemical internally driven gas-liquid mixing rotary bed device according to claim 5, characterized in that: An annular packing (23) is provided between the upper plate (18) and the lower plate (20), and a support rod (24) is inserted into the annular packing (23) between the upper plate (18) and the lower plate (20).