A wire mesh demister for gas-liquid separation

Abstract

The present invention relates to the technical field of wire mesh demisters, and specifically to a wire mesh demister for gas-liquid separation, wherein an annular rotating groove is left between an outer tube and an upper tube, and a toothed disc is arranged on the upper ends of the outer tube and the upper tube for rotationally mounting through a bearing, an extension rod is arranged on the rotating tube for extending along the annular rotating groove and fixedly connected to the toothed disc, and a driving assembly for driving a piston rod to rise and fall and a linkage assembly for driving the toothed disc for rotation are arranged on the end cover, and the beneficial effects are as follows: by arranging a rotatable rotating tube in the middle of an existing wire mesh layer, the cooperation of a piston rod and a one-way valve is utilized to achieve the purpose of air suction, and then by driving the piston rod to descend to squeeze the airflow, the airflow is discharged along the open groove directly facing the wire mesh layer, so as to blow the adhered water droplets to make them quickly gather to form water droplets and avoid clogging, and by arranging the cooperation of the driving assembly and the linkage assembly, the rotating tube is driven to rotate along the circumference of the wire mesh layer while the piston rod descends, so as to achieve full-angle cleaning of the wire mesh layer.

Description

Technical Field

[0001] The invention relates to the technical field of wire mesh demisters, in particular to a wire mesh demister for gas-liquid separation. Background Art

[0002] The wire mesh demister is mainly composed of a wire mesh, a wire mesh grid, a wire mesh block, and a support device for fixing the wire mesh block. The wire mesh is a gas-liquid filter mesh made of various materials. The gas-liquid filter mesh is composed of metal wire or non-metal wire. The non-metal wire of the gas-liquid filter mesh is twisted from multiple strands of non-metallic fibers, or it can be a single strand of non-metallic wire.

[0003] In the actual production process, the airflow with water droplets and steam generated depends on its natural volatilization or evaporation, and it is difficult to accurately control its wind speed and flow rate. Therefore, its adhesion efficiency on the wire mesh is low and the water droplets gather slowly. The filtering effect of the wire mesh depends on the gravity dripping formed by the gathering of water droplets to achieve the purpose of automatically cleaning the wire mesh.

[0004] Therefore, the common demister with grid wire mesh has the following problems:

[0005] 1. It can only play the role of defoaming and gas-liquid separation. However, in the actual filtration and separation process, due to the slow flow rate of the airflow, the water droplets adhere to the gaps in the screen, and their aggregation speed is slow. Therefore, the water droplets adhere and gather but will not quickly form water droplets and fall down, resulting in the water droplets being blocked in the gaps, affecting the subsequent airflow, thereby reducing the filtration efficiency;

[0006] 2. When the filtration efficiency is affected, the internal pressure of the tank will increase, affecting the stability of the equipment and increasing the risk of safety accidents. It will also cause the airflow to overflow in the opposite direction along the air inlet. Summary of the invention

[0007] The object of the present invention is to provide a wire mesh demister for gas-liquid separation to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The cam is provided with an upper and a lower end of the cam, and an extension pipe is provided on the upper end of the cam, and an extension pipe is provided on the upper end of the cam to extend the life of the cam.

[0010] Preferably, the lower spacer ring includes an outer guide ring and an inner guide ring, the inner guide ring is fixed on the wire mesh layer, the outer guide ring fits the inner wall of the separation tank, a circular flow gap is left between the outer guide ring and the inner guide ring, and a plurality of groups of connecting beams distributed in a circular array are arranged in the water flow gap, and the two ends of the connecting beams are respectively fixedly connected to the outer guide ring and the inner guide ring.

[0011] Preferably, the upper tube and the lower tube are both provided with a stepped ring groove at one end close to the rotating tube, and the two ends of the rotating tube are provided with a stepped ring that cooperates with the stepped ring groove, and a pair of stepped rings distributed up and down are respectively provided with multiple groups of support components distributed in a circular array between the upper spacer ring and the lower spacer ring.

[0012] Preferably, the support assembly includes a limiting beam, a connecting beam and a stop block, one end of the limiting beam is provided with a stop block that fits with the outer wall of the step ring, the other end of the limiting beam is connected to the connecting beam, the upper connecting beam is inserted into the upper spacer ring, and the lower connecting beam is inserted into the guide inner ring.

[0013] Preferably, a locking nut is provided at the end of the connecting beam, and a spring is sleeved on the connecting beam, one end of the spring abuts against the locking nut, and the other end of the spring abuts against the upper spacer ring or the guide inner ring.

[0014] Preferably, a limiting ring is provided on the inner side of one end of the upper tube close to the rotating tube, the inner diameter of the limiting ring is smaller than the outer diameter of the piston on the piston rod, the upper end of the piston rod extends to the upper end of the toothed disc, an upper cross beam is provided on the upper end of the piston rod, and a toothed plate extending downward is vertically provided on one side of the upper cross beam.

[0015] Preferably, the driving assembly can be configured as a telescopic rod, the telescopic rod is fixed on the end cover, the free end of the telescopic rod is connected to the upper crossbeam, and the telescopic rod is used to drive the piston rod to move up and down.

[0016] Preferably, the linkage assembly includes an upper frame, a pair of upper frames symmetrically located on both sides of the outer tube, a driven gear meshing with a toothed plate is provided on each of the pair of upper frames, a linkage gear meshing with the toothed plate is provided on the upper frame close to the toothed plate, a first bevel gear is coaxially connected to the linkage gear, a second bevel gear is coaxially connected to the driven gear, and the first bevel gear is vertically meshed with the second bevel gear.

[0017] Preferably, the lower tube is fixed on the lower spacer ring, and the lower tube is fixedly connected to the upper tube through four groups of connecting rods distributed in a circular array, and the four groups of connecting rods are located in the inner cavity of the rotating tube.

[0018] Preferably, a plurality of groups of arc-shaped grooves are provided on the plurality of groups of limit beams distributed in a circular array, and reinforcement rings are fixedly installed in the arc-shaped grooves.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting a rotatable rotating tube in the middle of the existing wire mesh layer, the piston rod and the one-way valve are used to achieve the purpose of air suction, reduce the internal pressure in the tank, and then drive the piston rod down to squeeze the airflow, so that the airflow is discharged along the open groove directly facing the wire mesh layer, so as to blow the adhered water droplets to make them quickly gather to form water droplets and avoid blockage;

[0021] 2. By setting the cooperation of the driving component and the linkage component, when the piston rod descends, the linkage component integrally links the descending movement and the rotating movement, drives the rotating tube to rotate along the circumference of the wire mesh layer, and realizes the cleaning of the wire mesh layer at all angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the rotating tube limit installation of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper tube and the lower tube connection of the present invention;

[0024] Figure 3 It is a schematic diagram of the linkage assembly structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the piston rod of the present invention;

[0026] Figure 5 It is an assembly diagram of the upper tube and the lower tube of the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating tube installation of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the present invention;

[0029] Figure 8 for Figure 7 A magnified view of the structure in the middle.

[0030] In the figure: 1. separation tank; 2. end cover; 3. exhaust port; 4. wire mesh layer; 5. upper spacer ring; 6. lower spacer ring; 7. lower tube; 8. one-way valve; 9. upper tube; 10. outer tube; 11. circular ring rotation groove; 12. upper frame; 13. reinforcement ring; 14. toothed disc; 15. extension rod; 16. piston rod; 17. rotating tube; 18. opening groove; 19. connecting rod; 20. limiting beam; 21. connecting beam; 22. spring; 23. upper crossbeam; 24. toothed plate; 25. linkage gear; 26. first bevel gear; 27. second bevel gear; 28. driven gear; 29. ​​bearing; 30. locking nut; 31. limiting ring; 32. stop block; 33. step ring groove; 34. step ring; 61. guide outer ring; 62. guide inner ring; 63. water flow gap; 64. connecting crossbeam. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 8 , the present invention provides a technical solution:

[0033] A wire mesh demister for gas-liquid separation comprises a wire mesh layer 4, the upper and lower ends of the wire mesh layer 4 are respectively fixedly mounted in the inner cavity of a separation tank 1 through an upper spacer ring 5 and a lower spacer ring 6, the upper end of the separation tank 1 is provided with an end cover 2, and the end cover 2 is provided with an exhaust port 3 for exhaust.

[0034] The steam generated at the lower end of the separation tank 1 is filtered through the wire mesh layer 4, so that water droplets in the steam adhere to the wire mesh, and the filtered dry air flow is discharged through the exhaust port 3.

[0035] A rotating tube 17 is rotatably installed in the middle of the wire mesh layer 4, and a stepped annular groove 33 is provided at one end of the upper tube 9 and the lower tube 7 close to the rotating tube 17. Stepped rings 34 matching the stepped annular groove 33 are provided at both ends of the rotating tube 17. A pair of stepped rings 34 distributed up and down are respectively provided with a plurality of groups of supporting components distributed in a circular array between the upper and lower spacer rings 5 ​​and the lower spacer rings 6. The supporting components include a limiting beam 20, a connecting beam 21 and a stop block 32. One end of the limiting beam 20 is provided with a stop block 32 that fits with the outer wall of the step ring 34, and the other end of the limiting beam 20 is connected to the connecting beam 21. The connecting beam 21 at the upper end is inserted into the upper spacer ring 5, and the connecting beam 21 at the lower end is inserted into the guide inner ring 62.

[0036] The position of the rotating tube 17 is precisely limited by providing the step ring 34 and the support assembly, thereby avoiding deviation and jamming when the linkage assembly drives the rotating tube 17 to rotate, thereby ensuring smooth rotation of the rotating tube 17.

[0037] An open groove 18 is provided on the arc outer wall of the rotating tube 17 at a position facing the wire mesh layer 4, the lower end of the rotating tube 17 is connected to one end of the lower tube 7, and a one-way valve 8 is provided at the other end of the lower tube 7, the upper end of the rotating tube 17 is connected to one end of the upper tube 9, and a piston rod 16 is slidably inserted in the upper tube 9, and a limiting ring 31 is provided on the inner side of one end of the upper tube 9 close to the rotating tube 17, the inner diameter of the limiting ring 31 is smaller than the outer diameter of the piston on the piston rod 16, the upper end of the piston rod 16 extends to the upper end of the toothed disc 14, and an upper cross beam 23 is provided on the upper end of the piston rod 16, and a tooth plate 24 extending downward is vertically provided on one side of the upper cross beam 23, and the driving component can be set as a telescopic rod, the telescopic rod is fixed on the end cover 2, and the free end of the telescopic rod is connected to the upper cross beam 23, and the telescopic rod is used to drive the piston rod 16 to move up and down.

[0038] The piston rod 16 is driven to move up and down by the telescopic rod, thereby cooperating with the one-way valve 8 to realize air extraction and exhaust. During the descending process of the piston rod 16, the linkage component is used to synchronously drive the rotating tube 17 to rotate, so that the open groove 18 can blow and clean the wire mesh layer 4 at all angles.

[0039] The lower tube 7 and the upper tube 9 are fixedly connected to each other, and an outer tube 10 is fixedly arranged on the end cover 2, which is sleeved on the outer side of the upper tube 9. A circular groove 11 is left between the outer tube 10 and the upper tube 9. A toothed disc 14 rotatably mounted through a bearing 29 is arranged on the upper end of the outer tube 10 and the upper tube 9. An extension rod 15 extending along the circular groove 11 and fixedly connected to the toothed disc 14 is arranged on the rotating tube 17. A driving assembly for driving the piston rod 16 to rise and fall and a linkage assembly for driving the toothed disc 14 to rotate are arranged on the end cover 2. The linkage assembly includes an upper frame 12, and a pair of upper frames 12 symmetrically distributed on the outer tube 1 0, a pair of upper frames 12 are provided with driven gears 28 meshing with the toothed plate 14, and the upper frame 12 close to the toothed plate 24 is provided with a linkage gear 25 meshing with the toothed plate 24, and the linkage gear 25 is coaxially connected with a first bevel gear 26, and the driven gear 28 is coaxially connected with a second bevel gear 27, and the first bevel gear 26 is vertically meshed with the second bevel gear 27, and the lower tube 7 is fixed on the lower spacer ring 6, and the lower tube 7 and the upper tube 9 are fixedly connected by four groups of connecting rods 19 distributed in a circumferential array, and the four groups of connecting rods 19 are located in the inner cavity of the rotating tube 17.

[0040] By setting the meshing transmission between the gear sets, when the telescopic rod drives the piston rod 16 to descend, the toothed plate 24 drives the linkage gear 25 to rotate, the linkage gear 25 drives the first bevel gear 26 to rotate, the first bevel gear 26 drives the second bevel gear 27 to rotate, the second bevel gear 27 drives the driven gear 28 to rotate, the driven gear 28 drives the toothed disc 14 to rotate, the toothed disc 14 drives the rotating tube 17 to rotate through the extension rod 15, so that the rotating tube 17 is formed to blow and clean the wire mesh layer 4 at a circular angle.

[0041] A locking nut 30 is provided at the end of the connecting beam 21, and a spring 22 is sleeved on the connecting beam 21. One end of the spring 22 rests on the locking nut 30, and the other end of the spring 22 rests on the upper spacer ring 5 or the guide inner ring 62. A plurality of groups of arc grooves are provided on the plurality of groups of limiting beams 20 distributed in a circular array, and a reinforcing ring 13 is fixedly installed in the arc groove.

[0042] The spring 22 is provided to realize elastic installation of the support assembly, thereby facilitating installation of the support assembly between the rotating tube 17 and the spacer ring. The reinforcing ring 13 is used to realize precise positioning of the support assembly to avoid deviation.

[0043] The lower spacer ring 6 includes an outer guide ring 61 and an inner guide ring 62. The inner guide ring 62 is fixed on the wire mesh layer 4. The outer guide ring 61 fits the inner wall of the separation tank 1. A circular water flow gap 63 is left between the outer guide ring 61 and the inner guide ring 62. A plurality of groups of connecting beams 64 distributed in a circular array are arranged in the water flow gap 63. The two ends of the connecting beams 64 are respectively fixedly connected to the outer guide ring 61 and the inner guide ring 62.

[0044] By providing the water flow gap 63, the water drops impacting the inner wall of the separation tank 1 fall down along the water flow gap 63, thereby achieving the purpose of directional water falling and preventing the water from contacting the steam again, increasing the humidity of the steam, and causing repeated separation.

[0045] Working principle: When the filtering efficiency of the wire mesh layer 4 is reduced due to condensation of water droplets, the piston rod 16 is driven upward by the driving component, and then cooperates with the one-way valve 8 and the open groove 18 to draw the steam in the inner cavity of the lower end of the separation tank 1 into the lower tube 7, the rotating tube 17 and the upper tube 9, and then the driving component is used to drive the piston rod 16 downward to achieve the purpose of squeezing the airflow in the tube, so that the airflow is discharged along the open groove 18. After the airflow is discharged, it impacts the inner side of the wire mesh layer 4 laterally, driving the water droplets condensed in the gaps between the wire meshes to gather and fall out to the outside. After the water droplets gather into drops, they impact the inner wall of the separation tank 1 and fall along the inner wall of the separation tank 1, thereby achieving the purpose of improving the filtering efficiency.

[0046] While descending, the driving force during the descent process drives the gear sets in the linkage assembly to engage with each other, thereby driving the rotating tube 17 to rotate between the upper tube 9 and the lower tube 7, so that the airflow in the open tube cleans the inner side of the wire mesh layer 4 at a circular angle along the open groove 18 under the action of pressure.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire mesh demister for gas-liquid separation, comprising a wire mesh layer (4), wherein the upper and lower ends of the wire mesh layer (4) are fixedly mounted in the inner cavity of a separation tank (1) via an upper spacer ring (5) and a lower spacer ring (6), respectively; an end cover (2) is disposed at the upper end of the separation tank (1), and an exhaust port (3) for exhaust is disposed on the end cover (2), wherein: A rotating tube (17) is rotatably mounted in the middle of the wire mesh layer (4); an opening groove (18) is provided on the arc outer wall of the rotating tube (17) at a position facing the wire mesh layer (4); the lower end of the rotating tube (17) is connected to one end of the lower tube (7); the other end of the lower tube (7) is provided with a one-way valve (8); the upper end of the rotating tube (17) is connected to one end of the upper tube (9); a piston rod (16) is slidably inserted in the upper tube (9); a piston rod (16) is fixedly provided on the end cover (2) between the lower tube (7) and the upper tube (9) and is sleeved on the lower tube (7). An outer tube (10) is disposed outside the upper tube (9), a circular rotating groove (11) is left between the outer tube (10) and the upper tube (9), a toothed disc (14) rotatably mounted via a bearing (29) is disposed at the upper ends of the outer tube (10) and the upper tube (9), an extension rod (15) is disposed on the rotating tube (17) and extends along the circular rotating groove (11) and is fixedly connected to the toothed disc (14), and a driving component for driving a piston rod (16) to move upward and downward and a linkage component for driving the toothed disc (14) to rotate are disposed on the end cover (2).

2. A wire mesh demister for gas-liquid separation according to claim 1, characterized in that: The lower spacer ring (6) comprises a flow-guiding outer ring (61) and a flow-guiding inner ring (62), wherein the flow-guiding inner ring (62) is fixed on the wire mesh layer (4), the flow-guiding outer ring (61) fits the inner wall of the separation tank (1), a circular water flow gap (63) is left between the flow-guiding outer ring (61) and the flow-guiding inner ring (62), and a plurality of groups of connecting cross beams (64) distributed in a circumferential array are arranged in the water flow gap (63), and the two ends of the connecting cross beams (64) are respectively fixedly connected to the flow-guiding outer ring (61) and the flow-guiding inner ring (62).

3. A wire mesh demister for gas-liquid separation according to claim 2, characterized in that: The upper tube (9) and the lower tube (7) are both provided with a stepped annular groove (33) at one end close to the rotating tube (17), and stepped rings (34) cooperating with the stepped annular groove (33) are provided at both ends of the rotating tube (17), and a plurality of groups of supporting components distributed in a circumferential array are provided between a pair of stepped rings (34) distributed up and down and an upper spacer ring (5) and a lower spacer ring (6), respectively.

4. A wire mesh demister for gas-liquid separation according to claim 3, characterized in that: The support assembly comprises a limiting beam (20), a connecting beam (21) and a stop block (32); one end of the limiting beam (20) is provided with a stop block (32) that fits against an outer wall of a step ring (34); the other end of the limiting beam (20) is connected to the connecting beam (21); the upper connecting beam (21) is inserted into an upper spacer ring (5); and the lower connecting beam (21) is inserted into an inner guide ring (62).

5. A wire mesh demister for gas-liquid separation according to claim 4, characterized in that: A locking nut (30) is provided at the end of the connecting beam (21), a spring (22) is sleeved on the connecting beam (21), one end of the spring (22) abuts against the locking nut (30), and the other end of the spring (22) abuts against the upper spacer ring (5) or the guide inner ring (62).

6. The wire mesh demister for gas-liquid separation according to claim 1, characterized in that: A limit ring (31) is provided on the inner side of one end of the upper tube (9) close to the rotating tube (17); the inner diameter of the limit ring (31) is smaller than the outer diameter of the piston on the piston rod (16); the upper end of the piston rod (16) extends to the upper end of the toothed disc (14); an upper cross beam (23) is provided on the upper end of the piston rod (16); and a toothed plate (24) extending downward is vertically provided on one side of the upper cross beam (23).

7. The wire mesh demister for gas-liquid separation according to claim 1, characterized in that: The driving component can be configured as a telescopic rod, the telescopic rod being fixed to the end cover (2), the free end of the telescopic rod being connected to the upper crossbeam (23), and the telescopic rod being used to drive the piston rod (16) to move up and down.

8. A wire mesh demister for gas-liquid separation according to claim 7, characterized in that: The linkage assembly comprises an upper frame (12), a pair of upper frames (12) being symmetrically arranged on both sides of the outer tube (10), a driven gear (28) meshingly connected to the toothed plate (14) being provided on each of the pair of upper frames (12), a linkage gear (25) meshingly connected to the toothed plate (24) being provided on the upper frame (12) on the side close to the toothed plate (24), a first bevel gear (26) being coaxially connected to the linkage gear (25), a second bevel gear (27) being coaxially connected to the driven gear (28), and the first bevel gear (26) being vertically meshingly connected to the second bevel gear (27).

9. The wire mesh demister for gas-liquid separation according to claim 3, characterized in that: The lower tube (7) is fixed on the lower spacer ring (6), and the lower tube (7) and the upper tube (9) are fixedly connected via four groups of connecting rods (19) distributed in a circumferential array, wherein the four groups of connecting rods (19) are located in the inner cavity of the rotating tube (17).

10. The wire mesh demister for gas-liquid separation according to claim 5, characterized in that: A plurality of groups of arc-shaped slots are provided on the plurality of groups of limit beams (20) distributed in a circumferential array, and reinforcement rings (13) are fixedly installed in the arc-shaped slots.

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