CN219580231U - Falling film absorber - Google Patents
Falling film absorber Download PDFInfo
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- CN219580231U CN219580231U CN202320303319.6U CN202320303319U CN219580231U CN 219580231 U CN219580231 U CN 219580231U CN 202320303319 U CN202320303319 U CN 202320303319U CN 219580231 U CN219580231 U CN 219580231U
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Abstract
The utility model relates to the technical field of tail gas treatment equipment, and particularly discloses a falling film absorber which comprises a spray tower, a condenser and a circulating treatment box; the bottom of the spray tower is connected with a condenser through an air outlet pipe, one side of the condenser, which is far away from the air outlet pipe, is connected with an air inlet pipe, and a condensing part for preliminary treatment of tail gas is arranged in the condenser; a packing layer is arranged in the spray tower, a positioning cylinder is arranged at the bottom of the packing layer, a spiral guide vane for guiding tail gas is arranged between the positioning cylinder and the spray tower, a spiral pipe is arranged on the bottom surface of the spiral guide vane, a spray piece is arranged at the top of the packing layer, and a liquid supply piece for supplying liquid to the spray piece and the spiral pipe is arranged in the circulation treatment box; in the utility model, the spiral guide vane and the filler layer are arranged in the spray tower, the tail gas can move along the space in the spiral guide vane, the tail gas treatment stroke is increased, the tail gas reacts with the absorption liquid, and then the tail gas can react with a liquid film formed by the absorption liquid in the filler layer, so that the effect of treating the tail gas is improved.
Description
Technical Field
The utility model relates to the technical field of tail gas treatment equipment, in particular to a falling film absorber.
Background
A falling film absorption reactor is an absorption reactor in which liquid descends along a wall under the action of gravity to form a film and is in countercurrent or cocurrent contact with gas. In the production of resin, the tail gas needs to be absorbed, and tail gas exists in the processes of raw material feeding and feeding holes, polymerization reaction and product discharge, so that part of raw materials can be recovered by tail gas treatment, and meanwhile, the pollution caused by tail gas discharge is reduced.
The falling film absorber disclosed in the prior patent publication No. CN210206426U can absorb and treat gas, but in the treatment process, the reaction stroke of tail gas and absorption liquid is short, the treatment effect of the tail gas is affected, and improvement is needed.
Disclosure of Invention
The utility model aims to provide a falling film absorber, which solves the problem of short reaction stroke of tail gas and absorption liquid in the existing falling film absorber.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a falling film absorber comprises a spray tower, a condenser and a circulation treatment box;
the bottom of the spray tower is connected with a condenser through an air outlet pipe, one side, far away from the air outlet pipe, of the condenser is connected with an air inlet pipe, and a condensing part for preliminary treatment of tail gas is arranged in the condenser;
a packing layer is arranged in the spray tower, a positioning cylinder is arranged at the bottom of the packing layer, a spiral guide vane for guiding tail gas is arranged between the positioning cylinder and the spray tower, a spiral pipe is arranged at the bottom surface of the spiral guide vane, a spray piece is arranged at the top of the packing layer, and a liquid supply piece for supplying liquid to the spray piece and the spiral pipe is arranged in the circulation treatment box;
and a waste liquid recovery part for recovering waste liquid at the bottom of the inner cavity of the spray tower is also arranged in the circulation treatment box.
In one alternative: the condensing unit comprises a condensing coil arranged in the condenser, the water inlet end of the condensing coil is connected with a water inlet pipe arranged at the top of the condenser, and the water outlet end of the condensing coil is connected with a water outlet pipe arranged at the top of the condenser.
In one alternative: the liquid supply part comprises a liquid storage tank arranged in the circulation treatment tank, the water outlet end of the liquid storage tank is connected with a water pump A through a liquid suction pipe, the liquid suction pipe extends to the inside of the liquid storage tank, and the water outlet end of the water pump A is connected with a liquid delivery pipe.
In one alternative: the spray piece comprises a spray pipe and a support pipe, the support pipe is arranged at the top of the packing layer, a water feeding cavity is formed in the top of the support pipe, a rotary joint is arranged at the top of the support pipe, one side of the rotary joint, far away from the support pipe, is connected with a connecting pipe A, the water inlet end of the connecting pipe A is connected with the water outlet end of a liquid conveying pipe, the spray pipe is connected with the side wall of the support pipe, the inner cavity of the spray pipe is communicated with the water feeding cavity, and a plurality of spray heads are arranged at the bottom of the spray pipe.
In one alternative: the water inlet end of the spiral pipe is connected with the connecting pipe B, the water inlet end of the connecting pipe B is connected with the water outlet end of the liquid conveying pipe, and a plurality of spray heads are arranged at the bottom of the spiral pipe.
In one alternative: the waste liquid recovery piece is including connecting the fluid-discharge tube in spray column bottom one side, be equipped with the waste liquid case in the circulation processing case, circulation processing incasement installation water pump B, fluid-discharge tube water outlet end connection water pump B, water pump B water outlet end connection waste liquid case, the branch pipe is connected to waste liquid case water outlet end, the drainage pipe is connected to the branch pipe water outlet end.
In one alternative: an exhaust pipe is arranged at the top of the spray tower.
In one alternative: the utility model discloses a spray column, including locating section of thick bamboo, locating section of thick bamboo rotation sets up the dwang, spray column bottom installs and is used for driving dwang pivoted motor, dwang bottom lateral wall installs and is used for stirring the stirring rod to spray column inner chamber bottom waste liquid, the intraformational rotation of filler connects the connecting rod, connecting rod bottom fixed connection dwang, connecting rod top fixed connection stay tube.
In one alternative: the side walls of the bottoms of the liquid storage tank and the waste liquid tank are connected with water discharge pipes.
Compared with the prior art, the utility model has the beneficial effects that:
in the utility model, the spiral guide vane and the filler layer are arranged in the spray tower, the tail gas can move along the space in the spiral guide vane, the tail gas treatment stroke is increased, the tail gas reacts with the absorption liquid, and then the tail gas can react with a liquid film formed by the absorption liquid in the filler layer, so that the effect of treating the tail gas is improved;
the condenser can carry out primary treatment on the tail gas, and part of liquid after tail gas condensation is accumulated in the condenser for collection, so that the subsequent recovery treatment is convenient;
the liquid supply part in the circulation treatment box can store and convey the absorption liquid, and the waste liquid recovery part can recover the waste liquid.
Drawings
Fig. 1 is a schematic diagram of a falling film absorber.
Fig. 2 is a schematic diagram of the structure of the inside of a spray tower in a falling film absorber.
Fig. 3 is a schematic view of the inside of a circulation treatment tank in a falling film absorber.
In the figure: 11. a spray tower; 12. a condenser; 13. an air inlet pipe; 14. an air outlet pipe; 15. a water inlet pipe; 16. a water outlet pipe; 17. an exhaust pipe; 18. a circulation treatment box; 19. a liquid feeding pipe; 20. a connecting pipe A; 21. a shower pipe; 22. a rotary joint; 23. a support tube; 24. a filler layer; 25. a positioning cylinder; 26. spiral guide vanes; 27. a spiral tube; 28. a connecting pipe B; 29. a rotating lever; 30. a motor; 31. an agitating rod; 32. a liquid discharge pipe; 33. a liquid storage tank; 34. a liquid suction pipe; 35. a water pump A; 36. a branch pipe; 37. a waste liquid tank; 38. and a water pump B.
Detailed Description
Example 1
Referring to fig. 1-3, in an embodiment of the present utility model, a falling film absorber includes a spray tower 11, a condenser 12, and a recycle processing tank 18;
the bottom of the spray tower 11 is connected with a condenser 12 through an air outlet pipe 14, one side, away from the air outlet pipe 14, of the condenser 12 is connected with an air inlet pipe 13, and a condensing part for preliminary treatment of tail gas is arranged in the condenser 12;
the tail gas can be output into the condenser 12 from the air inlet pipe 13 and then output into the spray tower 11 from the air outlet pipe 14 to react with the absorption liquid;
as shown in fig. 2, a packing layer 24 is disposed in the spray tower 11, the packing layer 24 is in an existing packing structure, for example, a plurality of packing pressing plates are used for forming, liquid flows in a film shape from top to bottom on the surface of the packing, a positioning cylinder 25 is mounted at the bottom of the packing layer 24, a spiral guide plate 26 for guiding tail gas is disposed between the positioning cylinder 25 and the spray tower 11, a spiral pipe 27 is mounted at the bottom of the spiral guide plate 26, a spray member is disposed at the top of the packing layer 24, and a liquid supply member for supplying liquid to the spray member and the spiral pipe 27 is disposed in the circulation processing box 18;
after the tail gas enters the spray tower 11, the spiral pipe 27 and the spray piece spray, the flow guide of the spiral flow guide sheet 26 increases the tail gas treatment stroke, the tail gas enters the packing layer 24, the tail gas can react with a liquid film formed by the absorption liquid in the packing layer 24, and the tail gas reacts with the absorption liquid.
And a waste liquid recovery part for recovering waste liquid at the bottom of the inner cavity of the spray tower 11 is also arranged in the circulation treatment box 18.
The condensing part comprises a condensing coil arranged in the condenser 12, the water inlet end of the condensing coil is connected with a water inlet pipe 15 arranged at the top of the condenser 12, and the water outlet end of the condensing coil is connected with a water outlet pipe 16 arranged at the top of the condenser 12;
cold water is input into the condensing coil, so that the temperature of the tail gas can be reduced, meanwhile, a condensed part of liquid in the tail gas is remained in the condenser 12, and a pipeline for discharging the liquid can be arranged at the bottom of the condenser 12.
The liquid supply part comprises a liquid storage tank 33 arranged in the circulation treatment tank 18, the water outlet end of the liquid storage tank 33 is connected with a water pump A35 through a liquid suction pipe 34, the liquid suction pipe 34 extends to the inside of the liquid storage tank 33, and the water outlet end of the water pump A35 is connected with a liquid feeding pipe 19; the absorption liquid can be stored in the liquid storage tank 33, and the water pump A35 can be operated to pump the absorption liquid in the liquid storage tank 33 into the liquid conveying pipe 19.
As shown in fig. 2, the spraying member comprises a spraying pipe 21 and a supporting pipe 23, the supporting pipe 23 is installed at the top of a packing layer 24, a water feeding cavity is arranged at the top of the supporting pipe 23, a rotary joint 22 is installed at the top of the supporting pipe 23, one side of the rotary joint 22, which is far away from the supporting pipe 23, is connected with a connecting pipe A20, the water inlet end of the connecting pipe A20 is connected with the water outlet end of a liquid feeding pipe 19, the spraying pipe 21 is connected to the side wall of the supporting pipe 23, the inner cavity of the spraying pipe 21 is communicated with the water feeding cavity, and a plurality of spray heads are arranged at the bottom of the spraying pipe 21;
part of the absorption liquid in the liquid feeding pipe 19 can be fed to the water feeding cavity through the connecting pipe A20, the spraying pipe 21 and the rotary joint 22, and then fed to the spraying pipe 21, sprayed out from the spray head and sprayed into the packing layer 24.
The water inlet end of the spiral tube 27 is connected with the connecting tube B28, the water inlet end of the connecting tube B28 is connected with the water outlet end of the liquid conveying tube 19, and a plurality of spray heads are arranged at the bottom of the spiral tube 27; part of the absorption liquid is conveyed into the spiral pipe 27 and sprayed out from the spray head, and the absorption liquid reacts with the tail gas in the spiral guide vane 26.
The waste liquid recovery piece comprises a liquid discharge pipe 32 connected to one side of the bottom of the spray tower 11, a waste liquid tank 37 is arranged in the circulation treatment tank 18, a water pump B38 is arranged in the circulation treatment tank 18, the water outlet end of the liquid discharge pipe 32 is connected with the water pump B38, the water outlet end of the water pump B38 is connected with the waste liquid tank 37, the water outlet end of the waste liquid tank 37 is connected with a branch pipe 36, and the water outlet end of the branch pipe 36 is connected with a liquid suction pipe 34; the water pump B38 is operated to pump and recycle the waste liquid into the waste liquid tank 37, part of the waste liquid can be pumped from the branch pipe 36 to the liquid pumping pipe 34 to be mixed with the absorption liquid in the liquid storage tank 33, the consumption of the absorption liquid is reduced, and a valve can be arranged on the branch pipe 36.
An exhaust pipe 17 is arranged at the top of the spray tower 11 and used for absorbing the exhaust after treatment.
The side walls of the bottoms of the liquid storage tank 33 and the waste liquid tank 37 are respectively connected with a water drain pipe, and the water drain pipes can be connected with an external pipeline or used for discharging liquid in the liquid storage tank 33 or the waste liquid tank 37.
In this embodiment, the tail gas can be output from the air inlet pipe 13 into the condenser 12, cold water is input into the condensing coil, the temperature of the tail gas can be reduced, meanwhile, a condensed part of liquid in the tail gas is left in the condenser 12, and then is output from the air outlet pipe 14 into the spray tower 11, the water pump A35 is operated to pump the absorption liquid in the liquid storage tank 33 into the liquid feeding pipe 19, part of the absorption liquid is conveyed into the spiral pipe 27 and sprayed out from the spray head, the absorption liquid reacts with the tail gas in the spiral guide plate 26, part of the absorption liquid in the liquid feeding pipe 19 can be conveyed to the water feeding cavity through the connecting pipe A20, the spray pipe 21 and the rotary joint 22, and then is conveyed to the spray pipe 21, sprayed out from the spray head, the absorption liquid is sprayed into the packing layer 24, and the tail gas can react with a liquid film formed by the absorption liquid in the packing layer 24;
the water pump B38 is operated to pump and recycle the waste liquid into the waste liquid tank 37, and part of the waste liquid can be pumped from the branch pipe 36 to the liquid pumping pipe 34 to be mixed with the absorption liquid in the liquid storage tank 33, so that the consumption of the absorption liquid is reduced.
Example 2
Unlike the embodiment 1, the positioning cylinder 25 is rotatably provided with a rotating rod 29, the bottom of the spray tower 11 is provided with a motor 30 for driving the rotating rod 29 to rotate, the side wall of the bottom end of the rotating rod 29 is provided with an agitating rod 31 for agitating waste liquid at the bottom of the inner cavity of the spray tower 11, the packing layer 24 is rotatably connected with an adapting rod, the bottom end of the adapting rod is fixedly connected with the rotating rod 29, and the top of the adapting rod is fixedly connected with the supporting tube 23;
in this embodiment, the motor 30 is operated to drive the rotation rod 29 to rotate, so that the stirring rod 31 stirs the waste liquid at the bottom of the inner cavity of the spray tower 11, solid deposition in the waste liquid is reduced, recovery of the waste liquid is facilitated, and meanwhile, the support tube 23 is driven to rotate, so that the spray tube 21 rotates around the axis of the support tube 23, and the absorption liquid can be uniformly sprayed into the filler layer 24.
Claims (9)
1. A falling film absorber, which comprises a spray tower (11), a condenser (12) and a circulation treatment box (18);
the method is characterized in that: the bottom of the spray tower (11) is connected with a condenser (12) through an air outlet pipe (14), one side, far away from the air outlet pipe (14), of the condenser (12) is connected with an air inlet pipe (13), and a condensing part for preliminary treatment of tail gas is arranged in the condenser (12);
a packing layer (24) is arranged in the spray tower (11), a positioning cylinder (25) is arranged at the bottom of the packing layer (24), a spiral guide plate (26) for guiding tail gas is arranged between the positioning cylinder (25) and the spray tower (11), a spiral pipe (27) is arranged on the bottom surface of the spiral guide plate (26), a spray piece is arranged at the top of the packing layer (24), and a liquid supply piece for supplying liquid to the spray piece and the spiral pipe (27) is arranged in the circulation treatment box (18);
and a waste liquid recovery part for recovering waste liquid at the bottom of the inner cavity of the spray tower (11) is also arranged in the circulation treatment box (18).
2. A falling film absorber as defined in claim 1, wherein: the condensing part comprises a condensing coil arranged in the condenser (12), the water inlet end of the condensing coil is connected with a water inlet pipe (15) arranged at the top of the condenser (12), and the water outlet end of the condensing coil is connected with a water outlet pipe (16) arranged at the top of the condenser (12).
3. A falling film absorber as defined in claim 2, wherein: the liquid supply piece comprises a liquid storage box (33) arranged in the circulation treatment box (18), the water outlet end of the liquid storage box (33) is connected with a water pump A (35) through a liquid suction pipe (34), the liquid suction pipe (34) extends to the inside of the liquid storage box (33), and the water outlet end of the water pump A (35) is connected with a liquid conveying pipe (19).
4. A falling film absorber according to claim 3, wherein: the spray piece comprises a spray pipe (21) and a support pipe (23), the support pipe (23) is arranged at the top of a packing layer (24), a water feeding cavity is formed in the top of the support pipe (23), a rotary joint (22) is arranged at the top of the support pipe (23), one side of the rotary joint (22), far away from the support pipe (23), is connected with a connecting pipe A (20), the water inlet end of the connecting pipe A (20) is connected with the water outlet end of a liquid conveying pipe (19), the spray pipe (21) is connected with the side wall of the support pipe (23), the inner cavity of the spray pipe (21) is communicated with the water feeding cavity, and a plurality of spray heads are arranged at the bottom of the spray pipe (21).
5. A falling film absorber according to claim 3, wherein: the water inlet end of the spiral tube (27) is connected with the connecting tube B (28), the water inlet end of the connecting tube B (28) is connected with the water outlet end of the liquid conveying tube (19), and a plurality of spray heads are arranged at the bottom of the spiral tube (27).
6. A falling film absorber according to claim 3, wherein: the waste liquid recovery piece is including connecting fluid-discharge tube (32) in spray column (11) bottom one side, be equipped with waste liquid case (37) in circulation processing case (18), install water pump B (38) in circulation processing case (18), fluid-discharge tube (32) water-out end connection water pump B (38), waste liquid case (37) are connected to water pump B (38) water-out end, branch pipe (36) are connected to waste liquid case (37) water-out end, branch pipe (36) water-out end connection liquid extraction pipe (34).
7. A falling film absorber as defined in claim 1, wherein: an exhaust pipe (17) is arranged at the top of the spray tower (11).
8. A falling film absorber as defined in claim 1, wherein: the utility model discloses a spray column, including locating section of thick bamboo (25), locating section of thick bamboo (25) rotation sets up dwang (29), motor (30) that are used for driving dwang (29) pivoted are installed to spray column (11) bottom lateral wall, stirring rod (31) that are used for stirring spray column (11) inner chamber bottom waste liquid are installed to dwang (29) bottom lateral wall, connecting rod is connected in packing layer (24) rotation, connecting rod bottom fixed connection dwang (29), connecting rod top fixed connection stay tube (23).
9. A falling film absorber as defined in claim 6, wherein: the side walls of the bottoms of the liquid storage tank (33) and the waste liquid tank (37) are connected with water discharge pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303319.6U CN219580231U (en) | 2023-02-24 | 2023-02-24 | Falling film absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303319.6U CN219580231U (en) | 2023-02-24 | 2023-02-24 | Falling film absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219580231U true CN219580231U (en) | 2023-08-25 |
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ID=87691713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320303319.6U Active CN219580231U (en) | 2023-02-24 | 2023-02-24 | Falling film absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219580231U (en) |
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2023
- 2023-02-24 CN CN202320303319.6U patent/CN219580231U/en active Active
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