A wire mesh demister for gas-liquid separation

Abstract

The application belongs to the technical field of gas-liquid separation, and discloses a wire mesh demister for gas-liquid separation, which comprises a tower body, a frame body in the tower body, a blocking prevention mechanism mounted on the frame body, a sleeve piece with an inner layer and an outer layer, a plurality of partition plate pieces fixedly communicated with the outer layer of the sleeve piece and arranged on the outer periphery of the sleeve piece, and another end of the partition plate piece fixedly connected with the frame body. The rotation of the transmission rod drives the one end of the convex shaft to slide along the spiral groove, thereby driving the tension spring combined piston to descend and store force. During the descending process of the tension spring combined piston, when the top of the tension spring combined piston cavity extrudes the spring piston rod to descend, the second convex shaft is driven to slide along the first convex shaft, the one end of the first convex shaft is separated from the spiral groove, and the liquid droplets attached to the filled wire mesh in the frame body are adsorbed into the sleeve piece and then discharged through the drain port, so that the problem that the liquid droplets in the gap of the wire mesh are slow in gathering and cannot fall timely and occupy the gas flow channel is solved.

Description

Technical Field

[0001] This invention belongs to the field of gas-liquid separation technology, specifically a wire mesh demister for gas-liquid separation. Background Technology

[0002] Wire mesh demisters are highly efficient gas-liquid separation devices widely used in chemical, pharmaceutical, metallurgical, and environmental protection industries. Their core function is to separate liquid droplets or mist entrained in the gas flow. Wire mesh demisters are typically installed at the top or gas-liquid outlet of distillation towers, absorption towers, evaporators, and wet desulfurization systems.

[0003] In operation, when mist-laden gas passes through a wire mesh bed at a set flow rate, droplets adhere to the wire mesh surface due to inertial impact. Through surface spreading and droplet coalescence, larger droplets gradually form. When the droplet's own weight exceeds the combined force of the gas drag and liquid surface tension, the droplet detaches from the wire mesh and settles downwards, thus completing gas-liquid two-phase separation. However, in actual filtration, the wire mesh only provides a physical impact capture surface and lacks a structural design to actively guide droplet coalescence. This results in a slow droplet aggregation rate in the gaps between the wire meshes, causing a large number of small-diameter droplets to disperse and adhere to the intersections and wire surfaces of each layer of wire mesh. These small droplets are difficult to quickly coalesce into large droplets with sufficient weight. Droplets that do not detach in time gradually accumulate in the gaps between the wire meshes and gradually occupy the gas flow channels, leading to a significant increase in airflow resistance. This forces a reduction in the amount of gas processed, directly resulting in a decrease in overall filtration efficiency.

[0004] Therefore, based on the above problems, a wire mesh demister for gas-liquid separation is proposed. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides a wire mesh demister for gas-liquid separation, which solves the problem that liquid droplets accumulate slowly in the gaps of the wire mesh and fail to fall off in time, gradually accumulating in the gaps of the wire mesh and gradually occupying the gas flow channel.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wire mesh demister for gas-liquid separation, comprising a tower body and a frame therein, and further comprising: an anti-clogging mechanism installed on the frame; The anti-clogging mechanism includes an inner and outer sleeve. Several partition plates are fixedly connected to the outer layer of the sleeve on its outer periphery. The other end of each partition plate is fixedly connected to the frame. Several water collection holes are provided on the partition plates. A tension spring combination piston is movably installed within the inner layer of the sleeve and has an upward tendency due to its own tension spring. Several constant pressure holes and drain outlets are respectively provided at the top of the inner layer and the bottom of the outer layer of the sleeve. A spring combination circular plate is installed in the drain outlet. When the spring combination circular plate moves upward, it can seal the top of the drain outlet. A gap is left between the outer periphery of the spring combination circular plate and the inner wall of the drain outlet. Several through holes for connecting the inner and outer layers of the sleeve are provided at the bottom of the sleeve. A spiral groove is provided inside the tension spring combination piston. The tower body is equipped with a fan blade drive mechanism, and the fan blade drive mechanism is equipped with a cam shaft assembly. The cam shaft assembly can be driven by the fan blade drive mechanism, and the top end of the cam shaft assembly can slide in the spiral groove to drive the tension spring combination piston to move.

[0007] Preferably, a limiting ring is fixedly connected to the bottom of the sleeve component, and the limiting ring is movably sleeved on the outer periphery of the tension spring combined piston and can limit its movement in the circumferential direction.

[0008] Preferably, the cam shaft assembly includes a transmission rod that is drively connected to the fan blade drive mechanism. The top end of the transmission rod can extend into the tension spring combined piston. A spring piston rod and a cam shaft one are movably mounted on the top end of the transmission rod. The top end of the spring piston rod can pass through the cam shaft one and extend above the transmission rod. One end of the cam shaft one extends to the outside of the transmission rod and can slide in a spiral groove. A guide groove is provided in the cam shaft one. A cam shaft two that can slide in the guide groove is fixed to the spring piston rod. When the spring-loaded piston moves downward, the top of its cavity can compress the spring piston rod downward, and when the second cam shaft moves downward in the guide groove, it can force the first cam shaft to retract into the spiral groove.

[0009] Preferably, the transmission rod has an exhaust channel, and the cavity where the spring piston rod is located on the transmission rod can be connected to the outside through the exhaust channel. The diameter of the exhaust channel is smaller than the diameter of the piston end portion on the spring piston rod.

[0010] Preferably, the outer periphery of the tension spring combined piston is movably fitted with a corrugated sleeve for isolating the liquid inside the sleeve from contact with the piston rod. The top and bottom ends of the corrugated sleeve are fixedly connected to the tension spring combined piston and the sleeve, respectively.

[0011] Preferably, the cavity portion of the tension spring combined piston used for the movement of the transmission rod is a cylindrical cavity, with the diameter of the top of the cylindrical cavity being smaller than the diameter of the bottom.

[0012] Preferably, the fan blade drive mechanism includes a bracket fixedly installed in the tower body, a fan blade body rotatably connected to the bottom of the bracket, a planetary gear set that can be driven to the fan blade body is provided above the bracket, and the bottom of the transmission rod is driven to the planetary gear set.

[0013] Preferably, the planetary gear set includes a sun gear fixedly connected to the shaft of the fan blade body, a plurality of planet gears rotatably connected above the bracket, and a gear ring rotatably connected above the bracket. The planet gears can simultaneously mesh with the outer circumference of the sun gear and the inner ring of the gear ring; the bottom of the transmission rod is fixedly installed on the top of the gear ring.

[0014] Preferably, a funnel-shaped component is provided inside the tower body, located below the fan blade body; Preferably, a gap is left between the top of the funnel component 6 and the fan blade body 32, and an extension end is provided on the outer periphery of the funnel component 6, and the extension end is fixedly connected to the inner wall of the tower body 5.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The above solution uses the rotation of the transmission rod to drive the end of the cam shaft to slide along the spiral groove, thereby driving the tension spring combination piston downward to store force. During the downward movement of the tension spring combination piston, when the top of the tension spring combination piston cavity squeezes the spring piston rod downward, it will drive the second cam shaft to slide along the first cam shaft and cause the end of the first cam shaft to disengage from the spiral groove. At this time, the tension spring combination piston will be reset upward by its own tension spring, and the sleeve will be in a negative pressure state. The water collection hole will generate suction and adsorb the droplets attached to the wire mesh filled in the frame into the sleeve and then be discharged through the drain outlet. This solves the problem that the droplets accumulate slowly in the gaps of the wire mesh and do not fall off in time, thus occupying the gas flow channel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a frontal perspective view of the invention installed inside the tank. Figure 3 This is a front cross-sectional view of the sleeve component of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the tension spring combined piston of the present invention; Figure 7 This is a schematic diagram of the structure of the convex shaft of the present invention; Figure 8 This is a schematic diagram of the fan blade drive mechanism of the present invention.

[0017] In the diagram: 1. Frame; 2. Anti-blocking mechanism; 21. Sleeve; 211. Limiting collar; 22. Tension spring combined piston; 221. Spiral groove; 222. Corrugated sleeve; 23. Divider plate; 24. Water collection hole; 25. Constant pressure hole; 26. Drain outlet; 27. Spring combined circular plate; 28. Through hole; 3. Fan blade drive mechanism; 31. Support; 32. Fan blade body; 33. Planetary gear set; 331. Sun gear; 332. Planetary gears; 333. Gear ring; 4. Cam shaft assembly; 41. Transmission rod; 411. Exhaust duct; 42. Spring piston rod; 43. Cam shaft one; 44. Cam shaft two; 45. Guide groove; 5. Tower body; 6. Funnel component. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 8 As shown, the present invention provides a wire mesh demister for gas-liquid separation, including a tower body 5 and a frame 1 therein, and further including: an anti-clogging mechanism 2 installed on the frame 1; the anti-clogging mechanism 2 includes an inner and an outer sleeve 21, a plurality of partition plates 23 fixedly connected to the outer periphery of the sleeve 21, the other end of the partition plates 23 being fixedly connected to the frame 1, a plurality of water collection holes 24 being opened on the partition plates 23, and a device movably installed in the inner layer of the sleeve 21 and subjected to its own tension spring. The spring-loaded piston 22 has an upward trend. The inner top and outer bottom of the sleeve 21 are respectively provided with several constant pressure holes 25 and drain ports 26. A spring-loaded circular plate 27 is installed in the drain port 26. When the spring-loaded circular plate 27 moves upward, it can block the top of the drain port 26. A gap is left between the outer periphery of the spring-loaded circular plate 27 and the inner wall of the drain port 26. Several through holes 28 for connecting the inner and outer layers of the sleeve 21 are provided at the bottom. The spring-loaded piston 22 has a spiral groove 221 inside. A fan blade drive mechanism 3 is installed inside the tower body 5. A cam shaft assembly 4 is installed on the fan blade drive mechanism 3. The cam shaft assembly 4 can be driven by the fan blade drive mechanism 3 and the top end of the cam shaft assembly 4 can slide in the spiral groove 221 to drive the tension spring combination piston 22 to move. The bottom of the sleeve 21 is fixedly connected to a limiting collar 211, which is movably sleeved on the outer periphery of the tension spring combined piston 22 and can limit it in the circumferential direction. The cam shaft assembly 4 includes a transmission rod 41 that is connected to the fan blade drive mechanism 3. The top end of the transmission rod 41 can extend into the tension spring combined piston 22. A spring piston rod 42 and a cam shaft 43 are movably mounted on the top end of the transmission rod 41. The top end of the spring piston rod 42 can pass through the cam shaft 43 and extend above the transmission rod 41. One end of the cam shaft 43 extends to the outside of the transmission rod 41 and can slide in the spiral groove 221. A guide groove 45 is provided in the cam shaft 43. A cam shaft 44 that can slide in the guide groove 45 is fixed to the spring piston rod 42. When the tension spring combined piston 22 moves downward, the top of its cavity can squeeze the spring piston rod 42 downward. When the cam shaft 44 moves downward in the guide groove 45, it can force the cam shaft 43 to retract into the spiral groove 221. An exhaust passage 411 is provided on the transmission rod 41. The cavity where the spring piston rod 42 is located on the transmission rod 41 can be connected to the outside through the exhaust passage 411. The diameter of the exhaust passage 411 is smaller than the diameter of the piston end portion on the spring piston rod 42.

[0020] Using the above scheme, the rotation of the transmission rod 41 drives the end of the cam shaft 43 to slide along the spiral groove 221, thereby driving the tension spring combination piston 22 to descend and store force. During the downward movement of the tension spring combination piston 22, when the top of the cavity of the tension spring combination piston 22 squeezes the spring piston rod 42 downward, it will drive the cam shaft 44 to slide along the cam shaft 43 and cause the end of the cam shaft 43 to disengage from the spiral groove 221. At this time, the tension spring combination piston 22 will be reset upward by its own tension spring, and the sleeve 21 will be in a negative pressure state. At the water collection hole 24, suction will be generated, and the liquid droplets attached to the wire mesh filled in the frame 1 will be adsorbed and enter the sleeve 21 and then discharged through the drain port 26. This solves the problem that the liquid droplets accumulate slowly in the gap of the wire mesh and do not fall off in time and occupy the gas flow channel. It is worth noting that, through the setting of the spring combination circular plate 27, when the tension spring combination piston 22 moves upward and makes the sleeve 21 under negative pressure, the spring combination circular plate 27 will also be subjected to external pressure and move upward and block the drain outlet 26, thereby ensuring that the negative pressure in the sleeve 21 can fully act on the water collection hole 24 to generate suction and improve the adsorption effect. When the spring-loaded piston 22 is reset, the liquid inside the sleeve 21 will push the spring-loaded circular plate 27 downward, thereby ensuring that the liquid extracted from the sleeve 21 can be stably discharged downward through the drain port 26. Furthermore, when the tension spring combination piston 22 moves downward, the exhaust passage 411 restricts the flow of external gas into the transmission rod 41, preventing the spring piston rod 42 from quickly moving upward to reset and causing the cam shaft 43 to enter the spiral groove 221, thereby ensuring that the tension spring combination piston 22 can move upward to reset.

[0021] like Figure 3 , Figure 4 and Figure 6 As shown, a corrugated sleeve 222 is movably sleeved on the outer periphery of the tension spring combination piston 22 to isolate the liquid inside the sleeve 21 from contact with the rod part of the tension spring combination piston 22. The top and bottom ends of the corrugated sleeve 222 are fixedly connected to the tension spring combination piston 22 and the sleeve 21, respectively. By adopting the above solution, the corrugated sleeve 222 can prevent the liquid in the sleeve 21 from being discharged outward through the space between the sleeve 21 and the tension spring piston 22, and at the same time can prevent external gas from entering the sleeve 21 through the gap between the sleeve 21 and the tension spring piston 22.

[0022] like Figures 3-5 As shown, the cavity portion of the tension spring combined piston 22 used for the movement of the transmission rod 41 is a cylindrical cavity, and the diameter of the top of the cylindrical cavity is smaller than the diameter of the bottom. Using the above scheme, when the top of the transmission rod 41 is at the top of the cylindrical cavity and the cam shaft 43 retracts into the transmission rod 41, the tension spring combined piston 22 will move upward rapidly. During this process, the spring piston rod 42 will slowly return to its original position, and the cam shaft 43 will also slowly move outward. Furthermore, by setting the diameter of the top of the cylindrical cavity to be smaller than the diameter of the bottom, the situation where the cam shaft 43 gets stuck in the middle of the spiral groove 221 during the return of the tension spring combined piston 22 can be further avoided, preventing the tension spring combined piston 22 from failing to return to its original position. like Figure 1 , Figure 2 and Figure 8 As shown, the fan blade drive mechanism 3 includes a bracket 31 fixedly installed in the tower body 5, a fan blade body 32 rotatably connected to the bottom of the bracket 31, a planetary gear set 33 that can be driven to the fan blade body 32 is provided above the bracket 31, and the bottom of the transmission rod 41 is driven to the planetary gear set 33. The planetary gear set 33 includes a sun gear 331 fixedly connected to the shaft of the fan blade body 32, a plurality of planet gears 332 rotatably connected above the support 31, and a gear ring 333 rotatably connected above the support 31. The planet gears 332 can simultaneously mesh with the outer circumference of the sun gear 331 and the inner ring of the gear ring 333. The bottom of the transmission rod 41 is fixedly installed on the top of the gear ring 333. A funnel component 6 located below the fan blade body 32 is provided inside the tower body 5. A gap is left between the top of the funnel component 6 and the fan blade body 32. An extension end is provided on the outer circumference of the funnel component 6, and the extension end is fixedly connected to the inner wall of the tower body 5.

[0023] Using the above scheme, the rising airflow of the tower body 5 drives the fan blade body 32 to rotate, and the torque is amplified after transmission through the sun gear 331, planet gear 332 and gear ring 333. This enables the transmission rod 41 to have a greater torque to ensure that the cam shaft assembly 4 can stably drive the tension spring combination piston 22 downward. At the same time, the funnel part 6 allows the upward airflow located below the frame 1 to pass through the support 31 better, and can also discharge the falling liquid downward through the middle of the funnel part 6, avoiding interference between the falling liquid and the rising airflow.

[0024] Working principle and usage process of this invention: In use, the rotation of the transmission rod 41 drives the end of the cam shaft 43 to slide along the spiral groove 221, thereby driving the tension spring combination piston 22 to descend and store force. During the downward movement of the tension spring combination piston 22, when the top of the cavity of the tension spring combination piston 22 squeezes the spring piston rod 42 downward, it will drive the cam shaft 44 to slide along the cam shaft 43 and cause the end of the cam shaft 43 to disengage from the spiral groove 221. At this time, the tension spring combination piston 22 will be reset upward by its own tension spring, and the sleeve 21 will be in a negative pressure state. At the water collection hole 24, suction will be generated, and the liquid droplets attached to the wire mesh filled in the frame 1 will be adsorbed and enter the sleeve 21 and then discharged through the drain port 26. Because there is an upward airflow inside the tower body 5, the upward airflow will drive the fan blade body 32 to rotate, and the torque will be amplified after being transmitted through the sun gear 331, planet gear 332 and gear ring 333. This will enable the transmission rod 41 to have a greater torque to ensure that the cam shaft assembly 4 can stably drive the tension spring combination piston 22 downward. At the same time, the funnel part 6 allows the upward airflow located below the frame 1 to pass through the support 31 better, and can also discharge the falling liquid downward through the middle of the funnel part 6, avoiding interference between the falling liquid and the upward airflow.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire mesh demister for gas-liquid separation, comprising a tower body (5) and a frame (1) therein, characterized in that, Also includes: Anti-blocking mechanism (2) installed on frame (1); The anti-blocking mechanism (2) includes an inner and outer sleeve (21). Several partition plates (23) are fixedly connected to the outer layer of the sleeve (21) around its periphery. The other end of the partition plates (23) is fixedly connected to the frame (1). Several water collection holes (24) are provided on the partition plates (23). A spring-loaded piston (22) is movably installed inside the inner layer of the sleeve (21) and has an upward tendency due to its own tension spring action. The inner top and outer bottom of (21) are provided with several constant pressure holes (25) and drain outlets (26), respectively. A spring combination plate (27) is installed in the drain outlet (26). When the spring combination plate (27) moves upward, it can block the top of the drain outlet (26). There is a gap between the outer periphery of the spring combination plate (27) and the inner wall of the drain outlet (26). The bottom of the sleeve (21) is provided with several through holes (28) for connecting the inner and outer layers of the sleeve (21). The tension spring combined piston (22) has a spiral groove (221) inside. The tower body (5) is equipped with a fan blade drive mechanism (3), and a cam shaft assembly (4) is installed on the fan blade drive mechanism (3). The cam shaft assembly (4) can be driven by the fan blade drive mechanism (3), and the top end of the cam shaft assembly (4) can slide in the spiral groove (221) to drive the tension spring combination piston (22) to move.

2. The wire mesh demister for gas-liquid separation according to claim 1, characterized in that: The bottom of the sleeve (21) is fixedly connected to a limiting collar (211), which is movably sleeved on the outer periphery of the tension spring combined piston (22) and can limit it in the circumferential direction.

3. The wire mesh demister for gas-liquid separation according to claim 2, characterized in that: The cam shaft assembly (4) includes a transmission rod (41) that is connected to the fan blade drive mechanism (3). The top end of the transmission rod (41) can extend into the tension spring combined piston (22). A spring piston rod (42) and a cam shaft one (43) are movably mounted on the top end of the transmission rod (41). The top end of the spring piston rod (42) can pass through the cam shaft one (43) and extend above the transmission rod (41). One end of the cam shaft one (43) extends to the outside of the transmission rod (41) and can slide in the spiral groove (221). A guide groove (45) is provided in the cam shaft one (43). A cam shaft two (44) that can slide in the guide groove (45) is fixed on the spring piston rod (42). When the spring-loaded piston (22) moves downward, the top of its cavity can squeeze the spring piston rod (42) downward, and when the second cam (44) moves downward in the guide groove (45), it can force the first cam (43) to retract into the spiral groove (221).

4. The wire mesh demister for gas-liquid separation according to claim 3, characterized in that: The transmission rod (41) is provided with an exhaust channel (411). The cavity where the spring piston rod (42) is located on the transmission rod (41) can be connected to the outside through the exhaust channel (411). The diameter of the exhaust channel (411) is smaller than the diameter of the piston end portion on the spring piston rod (42).

5. The wire mesh demister for gas-liquid separation according to claim 3, characterized in that: The outer periphery of the tension spring combined piston (22) is movably fitted with a corrugated sleeve (222) for isolating the liquid inside the sleeve (21) from contact with the rod body of the tension spring combined piston (22). The top and bottom ends of the corrugated sleeve (222) are fixedly connected to the tension spring combined piston (22) and the sleeve (21), respectively.

6. The wire mesh demister for gas-liquid separation according to claim 3, characterized in that: The cavity portion of the spring-loaded piston (22) used for the movement of the transmission rod (41) is a cylindrical cavity, with the diameter of the top of the cylindrical cavity being smaller than the diameter of the bottom.

7. The wire mesh demister for gas-liquid separation according to claim 3, characterized in that: The fan blade drive mechanism (3) includes a bracket (31) fixedly installed in the tower body (5), a fan blade body (32) is rotatably connected to the bottom of the bracket (31), a planetary gear set (33) is provided above the bracket (31) and can be driven to the fan blade body (32), and the bottom of the transmission rod (41) is driven to the planetary gear set (33).

8. The wire mesh demister for gas-liquid separation according to claim 7, characterized in that: The planetary gear set (33) includes a sun gear (331) fixedly connected to the shaft of the fan blade body (32), a plurality of planet gears (332) are rotatably connected above the support (31), and a gear ring (333) is also rotatably connected above the support (31). The planet gears (332) can simultaneously mesh with the outer circumference of the sun gear (331) and the inner ring of the gear ring (333). The bottom of the transmission rod (41) is fixedly installed on the top of the gear ring (333).

9. The wire mesh demister for gas-liquid separation according to claim 8, characterized in that: The tower body (5) is provided with a funnel component (6) located below the fan blade body (32).

10. The wire mesh demister for gas-liquid separation according to claim 9, characterized in that: A gap is left between the top of the funnel component (6) and the fan blade body (32). An extension end is provided on the outer periphery of the funnel component (6), and the extension end is fixedly connected to the inner wall of the tower body (5).

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