Tube bundle type efficient demister with confluence groove

Abstract

The utility model relates to the technical field of demisters, and provides a tube bundle type efficient demister with a converging groove, which comprises a tube shell, a cover plate fixedly connected to the top of the tube shell, a gas inlet component arranged at the top of the cover plate and used for guiding flue gas into the tube shell, a mesh plate fixedly connected to the top end of the inner side of the tube shell, and a demisting mechanism arranged below the mesh plate, the demisting mechanism comprises a flow guide hopper fixedly connected to the inner wall of the pipe shell, demisting fan blades are arranged on the inner side of the flow guide hopper, a driving piece for driving the demisting fan blades to rotate is arranged at the bottom end of the pipe shell, and a plurality of confluence grooves are formed in the inner wall of the flow guide hopper and distributed around the flow guide hopper at equal angles. And a collecting piece for collecting liquid drops is arranged at the bottom of the flow guide hopper. By means of the confluence groove, flowing dispersed liquid drops can form large-size liquid drops, meanwhile, the large-size liquid drops can rapidly flow downwards along the confluence groove and are finally collected through the collecting piece, the whole structure can achieve rapid guiding-out of the liquid drops in smoke, and the purification efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of demisters, and in particular to a tube bundle type high-efficiency demister with a converging trough. Background Art

[0002] At present, for the flue gas after desulfurization by wet flue gas desulfurization, especially limestone gypsum method and other desulfurization processes, the exhaust temperature is about 50°C, and there are some fine droplets and fine particulate smoke in the flue gas. In order to deeply purify the flue gas, a demister is generally used for treatment. The demister is mainly composed of a single-layer or multi-layer cyclone plate and a tube shell. The flue gas rotates after passing through the cyclone plate, and the droplets and fine particulate smoke in the flue gas are thrown onto the tube shell through the action of centrifugal force, forming a layer of liquid film on the tube shell. The liquid film can further absorb finer droplets and particulate smoke to achieve the purpose of purification.

[0003] After searching, the Chinese patent publication number CN213699126U discloses "a tube bundle type high-efficiency demister, including an upper tube shell, a lower tube shell, a porous plate pressure cover, a purification inlet pipe structure, a polymer hollow ball, a porous intercepting plate, a swirl plate, a liquid collection frame structure, an outward rotating swirl blade, a connecting bolt, a positioning rod, a flange and an adjustable extension frame structure, wherein the upper tube shell and the lower tube shell are respectively installed on the upper and lower sides of the adjustable extension frame structure; the porous plate pressure cover screws are installed on the inner upper part of the upper tube shell; and the purification inlet pipe structure is installed in the middle position of the positioning rod."

[0004] The above patent causes the droplets and fine particulate smoke in the flue gas to be thrown onto the tube shell to form a liquid film under the action of the external rotating swirl blades, and then uses the outer cover to guide the droplets out. However, the droplets are relatively dispersed after being thrown onto the tube shell to form a liquid film. Since the volume of the dispersed droplets is small, the droplets fall slowly, resulting in the inability to quickly discharge the droplets. In view of this, the utility model proposes a high-efficiency demister with a tube bundle with a converging trough. Utility Model Content

[0005] The utility model provides a tube bundle type high-efficiency demister with a converging groove, which solves the problem in the prior art that liquid droplets on the inner wall of the tube shell cannot be quickly discharged.

[0006] The technical solution of the utility model is as follows: a high-efficiency demister with a tube bundle with a converging groove, comprising a tube shell, a cover plate fixedly connected to the top of the tube shell, an air intake assembly for introducing smoke into the tube shell is arranged on the top of the cover plate, a mesh plate is fixedly connected to the top end of the inner side of the tube shell, a defogger mechanism is arranged below the mesh plate, the defogger mechanism comprises a guide bucket fixedly connected to the inner wall of the tube shell, defogger blades are arranged on the inner side of the guide bucket, a driving member for driving the defogger blades to rotate is arranged at the bottom end of the tube shell, a plurality of converging grooves are opened on the inner wall of the guide bucket, the plurality of converging grooves are distributed at equal angles around the guide bucket, and a collecting member for collecting droplets is arranged at the bottom of the guide bucket.

[0007] Preferably, the guide scoop is a truncated cone structure that is wide at the top and narrow at the bottom, and the outer diameter of the upper end of the guide scoop is the same as the inner diameter of the tube shell.

[0008] Preferably, the air intake assembly includes a cylinder fixedly connected to the top of the cover plate, the top of the cylinder is fixedly connected to an air intake pipe, the bottom of the cylinder is fixedly connected to an air outlet pipe, the air outlet pipe passes through the cover plate and extends to the interior of the tube shell, the bottom of the air outlet pipe is fixedly connected to a nozzle, and the nozzle is located directly above the mesh plate.

[0009] Preferably, the air intake assembly further comprises an activated carbon filter element for filtering smoke, and the activated carbon filter element is fixedly connected to the interior of the cylinder.

[0010] Preferably, the collecting member includes a collecting box, the inner side of which is fixedly connected with a plurality of connecting plates which are distributed at equal angles around the collecting box, the tops of the plurality of connecting plates are fixedly connected with the bottom wall of the guide bucket, the outer side of the collecting box is fixedly connected with a plurality of drainage pipes which are distributed at equal angles around the collecting box, and the plurality of drainage pipes pass through the side wall of the tube shell and extend to the outside of the tube shell.

[0011] Preferably, the collecting member further comprises a barrier tube fixedly connected to the center position of the collecting box, wherein the barrier tube passes through the collecting box and extends to the bottom of the collecting box.

[0012] Preferably, the height of the barrier tube is greater than the height of the collecting box, and the top end of the barrier tube is located on the inner side of the guide bucket.

[0013] Preferably, the driving member includes a fixed plate fixedly connected to the inner side of the tube shell, one end of the fixed plate is rotatably connected to a rotating shaft passing through the fixed plate, the top end of the rotating shaft is fixedly connected to the defogger blades, the bottom end of the rotating shaft is fixedly connected to bevel gear 1, and a motor is fixedly installed on the outer side of the tube shell, and the output shaft of the motor is fixedly connected to bevel gear 2 meshing with bevel gear 1.

[0014] The working principle and beneficial effects of the utility model are as follows: the flue gas is introduced into the interior of the tube shell through the air intake assembly, and the defogger blades are driven to rotate by the driving member. When the flue gas contacts the defogger blades, the liquid droplets and fine particulate smoke in the flue gas are thrown onto the inner wall of the tube shell under the action of centrifugal force to form a liquid film. After these liquid droplets flow to the adjacent confluence groove, they will merge in the confluence groove to form large-volume liquid droplets, and at the same time will quickly flow downward along the confluence groove, and finally be collected by the collecting member. The entire structure can realize the rapid discharge of liquid droplets in the flue gas, thereby greatly improving the purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the structure of a high-efficiency demister with a converging trough tube bundle according to the utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of a high-efficiency demister with a converging trough tube bundle according to the utility model. Figure 2 ;

[0018] Figure 3 It is a structural schematic diagram of the demisting mechanism of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the air intake assembly of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the collecting member of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the driving member of the utility model.

[0022] In the figure: 1. tube shell; 2. cover plate; 3. air inlet assembly; 31. cylinder; 32. air inlet pipe; 33. activated carbon filter element; 34. air outlet pipe; 35. nozzle; 4. mesh plate; 5. defogger mechanism; 51. guide bucket; 52. defogger blade; 53. driving member; 531. fixing plate; 532. rotating shaft; 533. bevel gear one; 534. motor; 535. bevel gear two; 54. confluence trough; 55. collecting member; 551. collecting box; 552. connecting plate; 553. barrier cylinder; 554. drain pipe. DETAILED DESCRIPTION

[0023] The following will be combined with 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.

[0024] like Figure 1 to Figure 6 As shown, this embodiment proposes a high-efficiency demister with a tube bundle with a converging groove, comprising a tube shell 1, a cover plate 2 is fixedly connected to the top of the tube shell 1, an air intake assembly 3 for introducing smoke into the tube shell 1 is arranged on the top of the cover plate 2, a mesh plate 4 is fixedly connected to the top of the inner side of the tube shell 1, a defogger mechanism 5 is arranged below the mesh plate 4, the defogger mechanism 5 comprises a guide hopper 51 fixedly connected to the inner wall of the tube shell 1, a defogger blade 52 is arranged on the inner side of the guide hopper 51, a driving member 53 for driving the defogger blade 52 to rotate is arranged at the bottom of the tube shell 1, a plurality of converging grooves 54 are opened on the inner wall of the guide hopper 51, and the plurality of converging grooves 54 are distributed at equal angles around the guide hopper 51, the guide hopper 51 is a truncated cone structure which is wide at the top and narrow at the bottom, the outer diameter of the upper end of the guide hopper 51 is the same as the inner diameter of the tube shell 1, and a collecting member 55 for collecting droplets is arranged at the bottom of the guide hopper 51.

[0025] The flue gas is introduced into the interior of the tube shell 1 through the air intake assembly 3, and the defogger blades 52 are driven to rotate by the driving member 53. When the flue gas contacts the defogger blades 52, the liquid droplets and fine particulate smoke in the flue gas are thrown onto the inner wall of the tube shell 1 under the action of centrifugal force to form a liquid film. After these liquid droplets flow to the adjacent confluence groove 54, they will merge in the confluence groove 54 to form large-volume liquid droplets, and at the same time will flow downward rapidly along the confluence groove 54, and finally be collected by the collecting member 55. The entire structure can realize the rapid extraction of liquid droplets in the flue gas, thereby greatly improving the purification efficiency.

[0026] Further, the air intake assembly 3 includes a cylinder 31 fixedly connected to the top of the cover plate 2, an air intake pipe 32 fixedly connected to the top of the cylinder 31, an air outlet pipe 34 fixedly connected to the bottom of the cylinder 31, the air outlet pipe 34 penetrates the cover plate 2 and extends to the inside of the tube shell 1, a nozzle 35 fixedly connected to the bottom of the air outlet pipe 34, the nozzle 35 is located just above the mesh plate 4, and an activated carbon filter element 33 for filtering the flue gas is fixedly connected to the inside of the cylinder 31. The flue gas is introduced into the cylinder 31 through the air intake pipe 32, and the flue gas can be filtered out of a large volume of smoke and toxic gases in the smoke by filtering through the activated carbon filter element 33, so as to prevent the large volume of smoke from affecting the subsequent demisting work.

[0027] Furthermore, the collecting member 55 includes a collecting box 551, the inner side of which is fixedly connected with a plurality of connecting plates 552 which are distributed at equal angles around the collecting box 551, the tops of the plurality of connecting plates 552 are fixedly connected with the bottom wall of the guide bucket 51, the outer side of the collecting box 551 is fixedly connected with a plurality of drainage pipes 554 which are distributed at equal angles around the collecting box 551, the plurality of drainage pipes 554 penetrate the side wall of the tube shell 1 and extend to the outside of the tube shell 1, the center of the collecting box 551 is fixedly connected with a blocking tube 553 which penetrates the collecting box 551 and extends to the bottom of the collecting box 551, the height of the blocking tube 553 is greater than the height of the collecting box 551, and the top of the blocking tube 553 is located on the inner side of the guide bucket 51. The liquid droplets are guided to the inside of the collection box 551 through the guide hopper 51, and the liquid droplets concentrated inside the collection box 551 are discharged through various drainage pipes 554 for collection. The barrier cylinder 553 can prevent the splashing liquid droplets from re-mixing into the flue gas, further improving the purification effect of the flue gas.

[0028] Furthermore, the driving member 53 includes a fixed plate 531 fixedly connected to the inner side of the tube shell 1, one end of the fixed plate 531 is rotatably connected to a rotating shaft 532 that passes through the fixed plate 531, the top of the rotating shaft 532 is fixedly connected to the defogger blade 52, the bottom end of the rotating shaft 532 is fixedly connected to a bevel gear 1 533, and a motor 534 is fixedly installed on the outer side of the tube shell 1, and the output shaft of the motor 534 is fixedly connected to a bevel gear 2 535 that meshes with the bevel gear 1 533. By starting the motor 534, the bevel gear 2 535 rotates, which makes the bevel gear 1 533 drive the rotating shaft 532 to rotate synchronously, and the defogger blades 52 rotate at a high speed. When the flue gas contacts the defogger blades 52, the droplets and fine particulate smoke in the flue gas are thrown onto the inner wall of the tube shell 1 under the action of centrifugal force to form a liquid film, and these droplets flow to the adjacent confluence groove 54 and merge in the confluence groove 54 to form large-volume droplets, and at the same time, they will flow downward rapidly along the confluence groove 54, thereby improving the purification efficiency of the flue gas.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency demister with a tube bundle having a converging groove, comprising a tube shell (1), a cover plate (2) being fixedly connected to the top of the tube shell (1), an air inlet assembly (3) for introducing flue gas into the interior of the tube shell (1) being arranged on the top of the cover plate (2), characterized in that: A mesh plate (4) is fixedly connected to the top of the inner side of the tube shell (1), a defogger mechanism (5) is arranged below the mesh plate (4), the defogger mechanism (5) comprises a guide hopper (51) fixedly connected to the inner wall of the tube shell (1), a defogger blade (52) is arranged on the inner side of the guide hopper (51), a driving member (53) for driving the defogger blade (52) to rotate is arranged at the bottom end of the tube shell (1), a plurality of confluence grooves (54) are provided on the inner wall of the guide hopper (51), the plurality of confluence grooves (54) are distributed at equal angles around the guide hopper (51), and a collecting member (55) for collecting liquid droplets is arranged at the bottom of the guide hopper (51).

2. The high-efficiency demister with a tube bundle with a converging groove according to claim 1, characterized in that: The flow guide scoop (51) is a truncated cone structure that is wide at the top and narrow at the bottom, and the outer diameter of the upper end of the flow guide scoop (51) is the same as the inner diameter of the tube shell (1).

3. The high-efficiency demister with a tube bundle with a converging groove according to claim 1, characterized in that: The air intake assembly (3) comprises a cylinder (31) fixedly connected to the top of the cover plate (2); an air intake pipe (32) is fixedly connected to the top of the cylinder (31); an air outlet pipe (34) is fixedly connected to the bottom of the cylinder (31); the air outlet pipe (34) passes through the cover plate (2) and extends into the interior of the tube shell (1); a nozzle (35) is fixedly connected to the bottom of the air outlet pipe (34); the nozzle (35) is located directly above the mesh plate (4).

4. The high-efficiency demister with a tube bundle with a converging groove according to claim 3, characterized in that: The air intake assembly (3) further comprises an activated carbon filter element (33) for filtering smoke, wherein the activated carbon filter element (33) is fixedly connected to the interior of the cylinder (31).

5. The high-efficiency demister with a tube bundle with a converging groove according to claim 1, characterized in that: The collecting member (55) comprises a collecting box (551), the inner side of the collecting box (551) being fixedly connected to a plurality of connecting plates (552) which are distributed at equal angles around the collecting box (551), the tops of the plurality of connecting plates (552) being fixedly connected to the bottom wall of the guide bucket (51), the outer side of the collecting box (551) being fixedly connected to a plurality of drain pipes (554) which are distributed at equal angles around the collecting box (551), the plurality of drain pipes (554) penetrating the side wall of the tube shell (1) and extending to the outside of the tube shell (1).

6. The high-efficiency demister with a tube bundle with a converging groove according to claim 5, characterized in that: The collecting member (55) further comprises a barrier tube (553) fixedly connected to the center position of the collecting box (551); the barrier tube (553) penetrates the collecting box (551) and extends to the bottom of the collecting box (551).

7. The high-efficiency demister with a tube bundle with a converging groove according to claim 6, characterized in that: The height of the barrier tube (553) is greater than the height of the collection box (551), and the top end of the barrier tube (553) is located on the inner side of the guide hopper (51).

8. The high-efficiency demister with a tube bundle with a converging groove according to claim 1, characterized in that: The driving member (53) comprises a fixing plate (531) fixedly connected to the inner side of the tube shell (1); one end of the fixing plate (531) is rotatably connected to a rotating shaft (532) penetrating the fixing plate (531); the top end of the rotating shaft (532) is fixedly connected to the defogger blade (52); the bottom end of the rotating shaft (532) is fixedly connected to a bevel gear 1 (533); a motor (534) is fixedly mounted on the outer side of the tube shell (1); and the output shaft of the motor (534) is fixedly connected to a bevel gear 2 (535) meshing with the bevel gear 1 (533).

Images