Efficient defoaming tower

Abstract

The utility model relates to the field of defoaming towers, and discloses an efficient defoaming tower which comprises a tower body, a plate type demister, a double-helix tube bundle demister and a wire mesh demister are arranged in the tower body, the plate type demister is arranged in the tower body, the double-helix tube bundle demister is arranged in the tower body and located above the plate type demister, and the wire mesh demister is arranged in the tower body and located above the double-helix tube bundle demister. The spray assemblies are rotatably arranged on the upper surface of the supporting ring, so that the positions of the spray assemblies which are vertically mounted in the tower body can be conveniently adjusted, the spray assemblies are arranged in the tower body, and the spray assemblies are arranged in the tower body and located on the upper portion of the double-spiral-tube-bundle demister, so that the spray assemblies are uniformly and fixedly mounted in the tower body, and the spray assemblies are uniformly and fixedly mounted in the tower body. The conveying branch pipes are distributed up and down in a staggered manner, so that the interior of the tower body is comprehensively sprayed and covered up and down, and the dedusting and defoaming efficiency of mist in the tower body is ensured.

Description

Technical Field

[0001] The utility model relates to the field of defoaming towers, in particular to a high-efficiency defoaming tower. Background Art

[0002] The main function of the high-efficiency defoamer is gas-liquid separation, that is, removing droplets, particles or mist entrained in the gas to ensure the purity and mass transfer efficiency of the gas, while reducing the loss of valuable materials and improving the operating environment of subsequent equipment.

[0003] In the industrial field, defoaming towers are widely used in wet desulfurization processes to remove harmful substances such as moisture, sulfuric acid, sulfate, sulfur dioxide, etc. in the gas to prevent these substances from contaminating and severely corroding equipment such as fans, heat exchangers and flues.

[0004] In the wet treatment process of waste gas (including acid-base absorption, desulfurization and denitrification, etc.), there are problems such as exhaust gas carrying liquid and back mixing. The salt and particulate matter in the droplets cause the exhaust gas indicators to remain high. At present, relying solely on wet treatment, simple defoaming and mist removal are difficult to meet the increasingly high emission requirements. In addition, the spray pipe structure in the existing defoaming tower is simple and fixed, which makes the spray pipe inconvenient to repair after installation, and it is not convenient to adjust the spray position between the upper and lower spray pipes in the tower, so it cannot meet the spray defoaming needs well. Utility Model Content

[0005] The utility model aims to provide a high-efficiency defoaming tower to solve the following technical problems: how to improve the defoaming and demisting quality to meet emission requirements, and how to make the spray pipe in the tower easy to maintain and adjust the position.

[0006] The purpose of the utility model can be achieved by the following technical solutions: a high-efficiency demisting tower, comprising: a tower body, the interior of the tower body comprising a plate demister, a double-helix tube bundle demister and a wire mesh demister, the plate demister is arranged inside the tower body, the double-helix tube bundle demister is arranged inside the tower body and located above the plate demister, the wire mesh demister is arranged inside the tower body and located above the double-helix tube bundle demister, and flushing components are evenly fixedly installed inside the tower body;

[0007] An air outlet is arranged at the top center of the tower body, inspection ports are evenly arranged on the outer surface of the tower body, an air inlet is arranged on the bottom outer surface of the tower body, a liquid level port is arranged on the outer surface of the tower body and at the bottom edge of the air inlet, supporting elements are fixedly installed inside the tower body and at the bottom of the plate type demister, double spiral tube bundle demister and wire mesh demister, and a water inlet is arranged on the bottom outer surface of the tower body; an air equalizing plate is arranged inside the tower body and below the plate type demister, and a sewage outlet is arranged on the lower outer surface of the tower body.

[0008] As a preferred solution of the utility model: the flushing component includes a support ring and a spray assembly, the spray assembly is movably mounted on the upper surface of the support ring, a toothed groove is provided around the top of the support ring, and an annular groove is provided on the upper surface of the support ring;

[0009] The spray assembly includes a main delivery pipe, a metal hose and a secondary delivery pipe. The main delivery pipe is fixedly connected to one end of the metal hose, the top center of the secondary delivery pipe is fixedly connected to the other end of the metal hose, the outer surface of the secondary delivery pipe is evenly connected to the delivery branch pipe, the outer surface of the delivery branch pipe is provided with a nozzle interface, a support ball is rotatably connected to the bottom of one end of the delivery branch pipe, a positioning gear block is slidably connected to one end of the secondary delivery pipe, and a tensioning spring is sleeved on the outer surface of the positioning gear block.

[0010] As a preferred solution of the utility model: a drainage hole is provided on the inner bottom surface of the annular groove, and the support ring is welded inside the tower body.

[0011] As a preferred solution of the utility model: the delivery auxiliary pipe and the delivery branch pipe are slidably connected to the inside of the annular groove through a supporting ball at one end.

[0012] As a preferred solution of the utility model: the positioning tooth block is clamped on the outer top of the support ring through a tooth-shaped groove.

[0013] As a preferred solution of the utility model: a threaded pipe is provided at one end of the delivery branch pipe, threaded holes are evenly opened on the outer surface of the delivery auxiliary pipe, and the delivery branch pipe is threadedly connected with the delivery auxiliary pipe through the threaded holes.

[0014] As a preferred solution of the utility model: a nozzle interface on the outer surface of the delivery branch pipe is connected with a vortex nozzle.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model arranges an air balancing plate at the bottom of the tower body as a redistributor, so that the mist entering the tower body is evenly distributed. A plate demister, a double helical tube bundle demister and a wire mesh demister are arranged inside the tower body, which can effectively improve the efficiency of dust removal and foam removal. Moreover, the plate demister, the double helical tube bundle demister and the wire mesh demister are all detachable structures. The flushing component is arranged inside the tower body, which can flush the surface of the plate demister, the double helical tube bundle demister and the wire mesh demister. The automatic flushing function is realized through the automatic control system.

[0017] (2) The utility model can facilitate the position adjustment between the spray assemblies installed up and down inside the tower body by rotatably setting the spray assembly on the upper surface of the support ring, so that the delivery branch pipes are staggered and distributed up and down, thereby fully spraying and covering the inside of the tower body from top to bottom, thereby ensuring the efficiency of mist, dust and foam removal inside the tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the side view structure of the high-efficiency defoaming tower;

[0020] Figure 2 It is a schematic diagram of the structure of a high-efficiency defoaming tower from a top view;

[0021] Figure 3 It is a schematic diagram of the structure of the flushing component;

[0022] Figure 4 Schematic diagram of the spray assembly structure.

[0023] Description of the drawings: 1. Tower body; 2. Air outlet; 3. Inspection port; 4. Flushing component; 5. Drain port; 6. Liquid level port; 7. Water inlet; 8. Plate demister; 9. Double helix tube bundle demister; 10. Wire mesh demister; 11. Air inlet; 12. Air equalizing plate; 13. Support element; 41. Support ring; 411. Annular groove; 412. Toothed groove; 42. Spraying assembly; 421. Delivery main pipe; 422. Tensioning spring; 423. Positioning gear block; 424. Delivery branch pipe; 425. Nozzle interface; 426. Support ball; 427. Delivery sub-pipe; 428. Metal hose. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 As shown, the utility model is a high-efficiency demisting tower, comprising: a tower body 1, the interior of the tower body 1 comprises a plate demister 8, a double-helix tube bundle demister 9 and a wire mesh demister 10, the plate demister 8 is arranged inside the tower body 1, the double-helix tube bundle demister 9 is arranged inside the tower body 1 and located above the plate demister 8, the wire mesh demister 10 is arranged inside the tower body 1 and located above the double-helix tube bundle demister 9, and a flushing component 4 is evenly fixedly installed inside the tower body 1;

[0026] An air outlet 2 is provided at the top center of the tower body 1, maintenance ports 3 are evenly provided on the outer surface of the tower body 1, an air inlet 11 is provided on the bottom outer surface of the tower body 1, a liquid level port 6 is provided on the outer surface of the tower body 1 and at the bottom edge of the air inlet 11, a supporting element 13 is fixedly installed inside the tower body 1 and at the bottom of the plate demister 8, the double helix tube bundle demister 9 and the wire mesh demister 10, and a water inlet 7 is provided on the bottom outer surface of the tower body 1; an air equalizing plate 12 is provided inside the tower body 1 and below the plate demister 8, and a sewage outlet 5 is provided on the lower outer surface of the tower body 1.

[0027] The flushing component 4 includes a support ring 41 and a spray assembly 42. The spray assembly 42 is movably mounted on the upper surface of the support ring 41. A toothed groove 412 is formed around the top of the support ring 41. An annular groove 411 is formed on the upper surface of the support ring 41.

[0028] The spray assembly 42 includes a main delivery pipe 421, a metal hose 428 and a secondary delivery pipe 427. The main delivery pipe 421 is fixedly connected to one end of the metal hose 428. The top center of the secondary delivery pipe 427 is fixedly connected to the other end of the metal hose 428. The outer surface of the secondary delivery pipe 427 is evenly connected to the delivery branch pipe 424. The outer surface of the delivery branch pipe 424 is provided with a nozzle interface 425. The bottom of one end of the delivery branch pipe 424 is rotatably clamped with a support ball 426. One end of the secondary delivery pipe 427 is slidably clamped with a positioning tooth block 423. The outer surface of the positioning tooth block 423 is sleeved with a tensioning spring 422.

[0029] The inner bottom surface of the annular groove 411 of the utility model is provided with a drainage hole to prevent the spray water from accumulating inside the annular groove 411. The support ring 41 is welded inside the tower body 1, so as to provide support for the spray assembly 42. The delivery auxiliary pipe 427 and the delivery branch pipe 424 are slidably connected to the inside of the annular groove 411 through the support ball 426 at one end, which can play a role of limiting support for one end of the delivery auxiliary pipe 427 and the delivery branch pipe 424.

[0030] The positioning tooth block 423 of the utility model is clamped on the outer top of the support ring 41 through the toothed groove 412, so as to position the delivery branch pipe 427 at the top of the support ring 41. A threaded tube is arranged at one end of the delivery branch pipe 424, and threaded holes are evenly provided on the outer surface of the delivery branch pipe 427, so that the delivery branch pipe 424 is threadedly connected to the delivery branch pipe 427 through the threaded holes, and the nozzle interface 425 on the outer surface of the delivery branch pipe 424 is connected to the vortex nozzle, so that the delivery branch pipe 424 and the vortex nozzle can be replaced after long-term use.

[0031] The working principle of the utility model is as follows: when the defoaming tower is used to defoam the mist, the gas containing foam and mist is firstly driven by the fan to enter the tower body through the air inlet 11, and under the action of the gas equalizing plate 12, the mist gas flow rises evenly and rushes into the plate-type demister 8, and at the same time, the water source is transported to the inside of the delivery sub-pipe 427 through the delivery main pipe 421 and the nozzle interface 425, and finally connected to the vortex nozzle through the delivery branch pipe 424 and the nozzle interface 425, and finally sprayed on the bottom of the plate-type demister 8, so that a layer of water film exists on the surface of the orifice plate of the plate-type demister 8, so that the mist contacts the orifice plate to generate a large amount of foam, and the foam and water mist in the mist are fully contacted and captured and melted into the water mist droplets. When the mist flows through the plate-type demister 8, the droplets remain on the baffle due to inertia, and the removal of droplets above 30μm can reach more than 90%;

[0032] After the plate demister 8 removes the large droplets, the mist continues to rise and enters the double helix tube bundle demister 9. At the same time, the flushing component 4 sprays the upper and lower surfaces of the double helix tube bundle demister 9. The double helix tube bundle demister 9 has a centrifugal counter-rotation structure. The foam mist is thrown onto the spiral rifling wall through the high wind speed tangential rotation of the swirl in the tube bundle inside the double helix tube bundle demister 9. The separated foam mist falls along the rifling without secondary entrainment, and the dust mist in the gas-liquid mixture is further captured and absorbed. Therefore, the double helix tube bundle demister 9 can remove more than 90% of the droplets above 10µm.

[0033] After the multi-stage defoaming of the plate demister 8 and the double helical tube bundle demister 9, the gas finally rises and enters the wire mesh demister 10. After the mist is further separated by the wire mesh demister 10, it is discharged from the gas outlet 2 at the top of the tower body 1, and finally achieves efficient defoaming and dust removal, reaching particulate matter ≤ 10mg / m3;

[0034] The internal flushing system of the tower body 1 is composed of a built-in circulating water tank, a circulating pump, a circulating pipeline, a flushing component 4 and a control system; the plate demister 8, the double helix tube bundle demister 9 and the wire mesh demister 10 need to be regularly flushed by the flushing component 4, and the captured particulate matter, salt and water mist enter the circulating water tank at the bottom of the tower with the flushing water flow. The flushing water time is integrated and controlled by the automatic control system to realize the function of automatic flushing. When multiple groups of flushing components 4 are installed inside the tower body 1, the flushing components 4 between the upper and lower parts need to be installed in coordination, so that the multiple groups of spray components 42 are staggered up and down, so that the rising mist inside the tower body 1 can be fully sprayed and covered. Therefore, when the flushing component 4 is installed and used, the support ring 41 is first welded to the inner surface of the tower body 1, and then the delivery sub-pipe 427 is clamped on the upper surface of the support ring 41, and then the delivery branch pipe 424 is threadedly connected with the delivery sub-pipe 427, and the delivery branch pipe The supporting ball 426 at one end of 424 is overlapped inside the annular groove 411, and then according to the position of the spray assembly 42 between the upper and lower parts, the delivery auxiliary pipe 427 and the multiple groups of delivery branch pipes 424 are pulled to rotate on the upper surface of the annular groove 411, so that the delivery branch pipes 424 between the upper and lower parts are staggered with each other, and then the outer surface of the top of the positioning tooth block 423 is removed, so that the positioning tooth block 423 is engaged and clamped with the rain tooth groove 412 under the elastic force of the tensioning spring 422, so as to position the spray assembly 42 at the top position of the support ring 41, and then the delivery main pipe 421 is welded to the inside of the tower body 1, and finally, by arranging plate demister 8, double helix tube bundle demister 9 and wire mesh demister 10 in the upper and lower parts of the tower body 1, and arranging multiple groups of flushing components 4 in the tower body 1, the defoaming and demisting quality of the defoaming tower for mist can be improved to meet the emission requirements, and it is convenient to repair and adjust the position of the spray pipe in the tower to meet the use requirements.

[0035] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A high-efficiency defoaming tower, comprising: A tower body (1), characterized in that the interior of the tower body (1) comprises a plate demister (8), a double helical tube bundle demister (9) and a wire mesh demister (10), wherein the plate demister (8) is arranged inside the tower body (1), the double helical tube bundle demister (9) is arranged inside the tower body (1) and located above the plate demister (8), and the wire mesh demister (10) is arranged inside the tower body (1) and located above the double helical tube bundle demister (9); Flushing components (4) are evenly and fixedly installed inside the tower body (1); an air outlet (2) is arranged at the center of the top of the tower body (1); inspection ports (3) are evenly arranged on the outer surface of the tower body (1); an air inlet (11) is arranged on the outer surface of the bottom of the tower body (1); and a liquid level port (6) is arranged on the outer surface of the tower body (1) and at the bottom edge of the air inlet (11); Support elements (13) are fixedly installed inside the tower body (1) and at the bottom of the plate-type demister (8), the double-helix tube bundle demister (9) and the wire mesh demister (10), and a water inlet (7) is provided on the bottom outer surface of the tower body (1); an air equalizing plate (12) is provided inside the tower body (1) and below the plate-type demister (8), and a sewage outlet (5) is provided on the lower outer surface of the tower body (1).

2. A high-efficiency defoaming tower according to claim 1, characterized in that: The flushing component (4) comprises a support ring (41) and a spray assembly (42); the spray assembly (42) is movably mounted on the upper surface of the support ring (41); a toothed groove (412) is provided around the top of the support ring (41); and an annular groove (411) is provided on the upper surface of the support ring (41); The spray assembly (42) comprises a main delivery pipe (421), a metal hose (428) and a secondary delivery pipe (427); the main delivery pipe (421) is fixedly connected to one end of the metal hose (428); the top center of the secondary delivery pipe (427) is fixedly connected to the other end of the metal hose (428); the outer surface of the secondary delivery pipe (427) is evenly connected to a delivery branch pipe (424); the outer surface of each of the delivery branch pipes (424) is provided with a nozzle interface (425); a support ball (426) is rotatably engaged at the bottom of one end of the delivery branch pipe (424); a positioning tooth block (423) is slidably engaged at one end of the secondary delivery pipe (427); and a tensioning spring (422) is sleeved on the outer surface of the positioning tooth block (423).

3. A high-efficiency defoaming tower according to claim 2, characterized in that: A drainage hole is provided on the inner bottom surface of the annular groove (411), and the support ring (41) is welded inside the tower body (1).

4. A high-efficiency defoaming tower according to claim 3, characterized in that: The delivery auxiliary pipe (427) and the delivery branch pipe (424) are slidably engaged in the interior of the annular groove (411) via a supporting ball (426) at one end.

5. A high-efficiency defoaming tower according to claim 4, characterized in that: The positioning tooth block (423) is clamped on the outer top of the support ring (41) through the tooth-shaped groove (412).

6. A high-efficiency defoaming tower according to claim 5, characterized in that: A threaded tube is provided at one end of the delivery branch pipe (424), threaded holes are evenly formed on the outer surface of the delivery auxiliary pipe (427), and the delivery branch pipe (424) is threadedly connected to the delivery auxiliary pipe (427) via the threaded holes.

7. A high-efficiency defoaming tower according to claim 6, characterized in that: A nozzle interface (425) on the outer surface of the delivery branch pipe (424) is connected to a vortex nozzle.

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