CN203816465U - Waste gas absorption tower - Google Patents
Waste gas absorption tower Download PDFInfo
- Publication number
- CN203816465U CN203816465U CN201420203106.7U CN201420203106U CN203816465U CN 203816465 U CN203816465 U CN 203816465U CN 201420203106 U CN201420203106 U CN 201420203106U CN 203816465 U CN203816465 U CN 203816465U
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- China
- Prior art keywords
- packing layer
- tower body
- waste gas
- liquid
- circulation fluid
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- Expired - Fee Related
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- 239000002912 waste gas Substances 0.000 title claims abstract description 61
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 239000007789 gas Substances 0.000 claims abstract description 52
- 239000000945 filler Substances 0.000 claims abstract description 19
- 238000012856 packing Methods 0.000 claims description 61
- 239000012530 fluid Substances 0.000 claims description 54
- 241000521257 Hydrops Species 0.000 claims description 30
- 206010030113 Oedema Diseases 0.000 claims description 30
- 230000008676 import Effects 0.000 claims description 29
- 238000005213 imbibition Methods 0.000 claims description 23
- 238000011084 recovery Methods 0.000 claims description 19
- 239000002826 coolant Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 9
- 238000009825 accumulation Methods 0.000 abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 239000000126 substance Substances 0.000 description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 230000000505 pernicious effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a waste gas absorption tower. The waste gas absorption tower comprises a tower body with a liquid accumulation section at the lower part, wherein a gas inlet and a recovered liquid outlet are formed in the liquid accumulation section; a first filler layer is arranged in the middle of the tower body; a gas outlet is formed in the top of the tower body; above the first filler layer, a second filler layer is arranged at the upper part of the tower body; both the precision and the fineness of the filler in the second filler layer are greater than those of the filler in the first filler layer; a precise liquid absorption inlet is formed above the second filler layer; a circulating liquid inlet is formed between the first filler layer and the second filler layer; and a circulating liquid outlet communicated with the circulating liquid inlet is formed in the liquid accumulation section at the lower part of the tower body. After gas enters the first filler layer, parts of active components in the gas are recovered, while the trace-grade active components in the gas are recovered in the second filler layer, and finally the gas is discharged out of the gas outlet, so that the gas discharged out from the top of the tower reaches the national environmental protection standard; and since the circulating liquid inlet is communicated with the circulating liquid outlet, the circuiting liquid is recyclable and the concentration of a recovered liquid is increased.
Description
Technical field
The utility model relates to a kind of device that can process waste gas such as dropping a hint in chemical producing system, flashed vapours, specifically relate to a kind ofly can the active ingredient in waste gas be reclaimed and can be eliminated the waste gas absorption tower of the harmful components in waste gas, belong to energy-conserving and environment-protective technical field.
Background technology
At present, waste gas absorption tower is used widely in all trades and professions, utilize waste gas absorption tower can the active ingredient in waste gas be used, can also purify the harmful components of eliminating in waste gas, thereby the gas that makes to discharge in waste gas absorption tower reaches the environmental protection standard of national regulation.The structure of a kind of waste gas absorption tower of prior art as shown in Figure 1, this waste gas absorption tower comprises tower body, the bottom of tower body is hydrops section 1, hydrops section 1 place is provided with the air inlet 11 entering for waste gas and exports 14 for the recovery liquid that reclaims liquid outflow, the middle part of tower body is packing layer 2, the top of tower body is provided with the absorption liquid import 13 entering for absorption liquid, the top of tower body is provided with the exhaust outlet 12 of discharging for purified gas, exhaust ports is provided with demister 3, this waste gas absorption tower in use, waste gas passes from packing layer 2 after entering into hydrops section 1 by air inlet 11 again, gas after final purification is discharged from exhaust outlet 12, and the recovery liquid producing is discharged from reclaim liquid outlet 14.But, in this waste gas absorption tower, exist and add the excessive active ingredient that causes reclaiming at the bottom of tower in liquid of the water yield too low, cannot reclaim or need to increase the problem that energy consumes, also likely bring other harm simultaneously; If minimizing amount of water, can reach recovery requirement although reclaim liquid concentration at the bottom of tower, the gas of tower top exhaust outlet discharge does not but reach national environmental standard.
Summary of the invention
The purpose of this utility model is to provide a kind of gas that can either guarantee that tower top is discharged to reach national environmental standard, can guarantee to reclaim the waste gas absorption tower that liquid concentration reaches recovery requirement at the bottom of tower again.
The utility model adopts following technical scheme: a kind of waste gas absorption tower, comprise tower body, the bottom of tower body is hydrops section, hydrops section place is provided with the air inlet entering for waste gas and exports for the recovery liquid that reclaims liquid outflow, the middle part of tower body has the first packing layer, the top of tower body is provided with the exhaust outlet of discharging for purified gas, the top that the top of described tower body is positioned at the first packing layer is provided with the second packing layer, in described the second packing layer, the precision of filler and fineness are all greater than the filler in the first packing layer, the top of the second packing layer is provided with smart imbibition import, between the first packing layer and the second packing layer, be provided with circulation fluid import, the hydrops section place of described tower body bottom is also provided with circulation fluid outlet, this circulation fluid outlet is passed through pipeline communication with described circulation fluid import.
Described circulation fluid outlet and the pipeline between circulation fluid import are provided with for the liquid of circulation fluid outlet outflow being sent into the circulating pump of circulation fluid import.
In described tower body, between circulation fluid import and the first packing layer, be provided with the liquid bath that is subject to for liquids and gases are mixed.
In described tower body, between smart imbibition import and the second packing layer, be provided with the smart imbibition distributor for liquids and gases are mixed.
Described exhaust ports is provided with the demister for the drop of gas is removed.
In the hydrops section of described tower body bottom, be provided with cooler, this cooler has cooling medium outlet and cooling medium inlet, and described cooling medium outlet and cooling medium inlet are all arranged on tower body bottom.
The utility model is greater than the second packing layer of the first packing layer by the fineness of filler precision is set on the tower body of absorption tower, when gas enters the first packing layer, most of effective ingredient in gas is recovered, then gas rises to the second packing layer from the first packing layer, at the second packing layer, the effective ingredient in gas is recycled to trace level, finally by exhaust outlet, discharged with spraying in smart imbibition import after smart imbibition mixes, simultaneously, the circulation fluid outlet of hydrops section is communicated with the circulation fluid import of the first packing layer top, circulation fluid can be recycled, the concentration that reclaims liquid is improved, and washings can be recycled, in use procedure, only need add a small amount of washings.Therefore the gas that, uses the utility model can guarantee that tower top is discharged reaches national environmental standard, can guarantee that reclaiming liquid concentration at the bottom of tower reaches recovery requirement again.
Further, the circulating pump arranging on pipeline between circulation fluid outlet and circulation fluid import can make that the liquid in circulation fluid outlet is easier enters into circulation fluid import, circulating pump makes recycling of circulation fluid easier, make the consumption of smart imbibition water reduce by 0.1～0.01 times, reclaim liquid concentration and improve more than 10 times, the concentration of controlling harmful substance in exhaust gas is 5～10ppm.
Further, circulation fluid can be evenly distributed on the first packing layer by liquid bath, circulation fluid is mixed with gas.
Further, smart imbibition distributor can be evenly distributed in smart imbibition on the second packing layer, and smart imbibition is mixed with gas.
Further, demister can further absorb drop remaining in the gas that will discharge, and has further purified waste gas.
Further, the liberated heat when cooler arranging in hydrops section can absorption reaction, reduce the temperature of liquid in hydrops section, thereby be conducive to absorb pernicious gas, and reduce cleaning solution temperature, the recovery liquid of lower temperature is conducive to reclaim simultaneously, is highly suitable for reaction and produces the large production system of heat.
Accompanying drawing explanation
Fig. 1 is the structural representation of the waste gas absorption tower of prior art;
Fig. 2 is the structural representation of the utility model embodiment 1;
Fig. 3 is the systematic schematic diagram of Fig. 2;
Fig. 4 is the structural representation of the utility model embodiment 2;
Fig. 5 is the systematic schematic diagram of Fig. 4.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment 1:
The structure of embodiment 1 of the present utility model as shown in Figures 2 and 3, the waste gas absorption tower of the present embodiment comprises tower body, the bottom of tower body is hydrops section 1, hydrops section 1 place is provided with the air inlet 11 entering for waste gas and exports 14 for the recovery liquid that reclaims liquid outflow, the middle part of tower body has the first packing layer 21, the top of tower body is provided with the exhaust outlet 12 of discharging for purified gas, the top that the top of described tower body is positioned at the first packing layer 21 is provided with the second packing layer 22, in described the second packing layer 22, the precision of filler and fineness are all greater than the filler in the first packing layer 21, the top of the second packing layer 22 is provided with smart imbibition import 17, between the first packing layer 21 and the second packing layer 22, be provided with circulation fluid import 16, at hydrops section 1 place of tower body bottom, be also provided with circulation fluid outlet 15, this circulation fluid outlet 15 is passed through pipeline communication with described circulation fluid import 16, in order to make, liquid in circulation fluid outlet 15 is easier enters into circulation fluid import 16, the liquid that is provided on the pipeline of the present embodiment between circulation fluid outlet 15 and circulation fluid import 16 that circulation fluid outlet is flowed out is sent in circulating pump 6(Fig. 1 of circulation fluid import and is omitted circulating pump and pipeline), in order to make circulation fluid can be evenly distributed on the first packing layer and circulation fluid to be mixed with gas, the present embodiment arranges and is subject to liquid bath 4 in tower body between circulation fluid import 15 and the first packing layer 21, in order to make smart imbibition can be evenly distributed on the second packing layer and smart imbibition to be mixed with gas, the present embodiment arranges smart imbibition distributor 5 in tower body between smart imbibition import 17 and the second packing layer 22, in addition, for the drop to remaining in the gas that will discharge further absorbs, at exhaust outlet 12 places, be provided with the demister 3 for the drop of gas is removed.
The present embodiment in use, waste gas to be recycled enters tower body hydrops section 1 from air inlet 11, because the gravity that gas-liquid is subject to is different, a small amount of drop separation falls into hydrops section, waste gas enters the first packing layer 21, in the first packing layer, most of effectively gas composition in waste gas is reclaimed, through the thick gas of inhaling, pass and be subject to liquid bath 4 to enter the second packing layer 22, effective ingredient in waste gas is being recycled to trace level the second packing layer 22 is interior, waste gas through smart imbibition separator 5, is removed drop through demister 3 and be discharged into tower body outside from the exhaust outlet 12 of tower top again.Because circulation fluid import 16 and circulation fluid outlet 15 is communicated with, so circulation fluid reusable edible, finally can make the concentration that reclaims liquid improve, and washings can be recycled, in use procedure, only need add a small amount of washings.
Use the waste gas absorption tower of the present embodiment, the recovery liquid concentration in hydrops section not only can be in 5～90% scope flexible modulation, thereby can meet different process to reclaiming the requirement of liquid concentration, hydrops section can also provide circulation fluid to the first packing layer; In the first packing layer, straying quatity that can be by regulating circulation fluid sponges 90～99.9% harmful substance in waste gas; Circulation fluid can be assigned on packing layer uniformly by liquid bath, the ability that regulates and distributes of its liquid is smart liquid absorption 1～100 times; The second packing layer can absorb 2～10% harmful substance in waste gas to 5～10ppm, and its water consumption only has 0.1～0.01 times of traditional handicraft; In addition, smart imbibition distributor can be assigned to the smart imbibition of 0.2～10 times of normal smart liquid absorption on the second packing layer 4 uniformly; Drop remaining in 6 pairs of waste gas of demister further absorbs, and the concentration that makes to be discharged into the harmful substance outside tower body is 5～10ppm.
The waste gas absorption tower of the present embodiment can be 0.5～31.4 MPa at pressure, temperature is to carry out under the operating condition of 0～100 ℃, harmful substance in the waste gas that contains 2～15% harmful substances can be absorbed to 5～10ppm, the absorption efficiency of harmful substance can reach 90～99.9%, and the concentration that reclaims liquid is regulated in 5～90% scope, compared with prior art, the concentration that reclaims liquid improves more than 10 times, and water consumption only has 0.1～0.01 times of traditional handicraft, can either guarantee that the gas that tower top is discharged can reach national environmental standard, at the bottom of can guaranteeing again tower, recovery liquid concentration reaches recovery requirement, accomplish not only energy-conservation but also environmental protection.
Embodiment 2:
The structure of embodiment 2 of the present utility model as shown in Figure 4 and Figure 5, different from the utility model embodiment 1 is, the interior cooler 7 that arranges of the hydrops section 1 of the present embodiment in tower body bottom, this cooler 7 has cooling medium outlet 71 and cooling medium inlet 72, and cooling medium outlet 71 and cooling medium inlet 72 are all arranged on tower body bottom.Except above-mentioned difference, other structure of the present embodiment is all identical with embodiment 1, just repeats no more herein.
The present embodiment in use, waste gas to be recycled enters tower body hydrops section 1 from air inlet 11, because the gravity that gas-liquid is subject to is different, a small amount of drop separation falls into hydrops section 1, waste gas enters the first packing layer 21, interior by most of effectively gas composition recovery in waste gas at the first packing layer 21, through the thick gas of inhaling, pass and be subject to liquid bath 4 to enter the second packing layer 22, effective ingredient in waste gas is recycled to trace level the second packing layer 22 is interior, waste gas through smart imbibition separator 5, is removed drop through demister 6 and be discharged into tower body outside from the exhaust outlet 12 of tower top again.Because the outlet of circulation fluid import and circulation fluid is communicated with, so circulation fluid reusable edible, finally can make the concentration that reclaims liquid improve, and washings can be recycled, in use procedure, only need add a small amount of washings.In hydrops section 1 due to the present embodiment, be provided with cooler 7, the cooling medium in cooler 7 can be taken away the heat of the liquid in hydrops section 1 at circulation time, thereby reduces circulation fluid in the temperature of circulation time, is conducive to absorb the harmful substance in waste gas.
Use the waste gas absorption tower of the present embodiment, the recovery liquid concentration in hydrops section not only can be in 5～98% scope flexible modulation, thereby can meet different process to reclaiming the requirement of liquid concentration, hydrops section can also provide circulation fluid to the first packing layer; In the first packing layer, straying quatity that can be by regulating circulation fluid sponges 90～99.9% harmful substance in waste gas; Circulation fluid can be assigned on packing layer uniformly by liquid bath, the ability that regulates and distributes of its liquid is smart liquid absorption 1～100 times; The second packing layer can absorb 2～10% harmful substance in waste gas to 5～10ppm, and its water consumption only has 0.1～0.01 times of traditional handicraft; In addition, smart imbibition distributor can be assigned to the smart imbibition of 0.2～10 times of normal smart liquid absorption on the second packing layer 4 uniformly; Drop remaining in 6 pairs of waste gas of demister further absorbs, and the concentration that makes to be discharged into the harmful substance outside tower body is 0～5ppm.Compare with embodiment 1, the waste gas absorption tower of the present embodiment can make the concentration that reclaims liquid reach higher value, can also make the harmful components of the gas of tower top discharge further reduce, and is highly suitable for the production system that gas emissions is large, exothermic heat of reaction amount is large.
The waste gas absorption tower of the present embodiment can be 0.5～31.4 MPa at pressure, temperature is to carry out under the operating condition of 0～100 ℃, harmful substance in the waste gas that contains 2～15% harmful substances can be absorbed to 0～5ppm, the absorption efficiency of harmful substance can reach 90～99.9%, and the concentration that reclaims liquid can be regulated in 5～98% scope, compared with prior art, the concentration that reclaims liquid improves more than 10 times, and water consumption only has 0.1～0.01 times of traditional handicraft, and cooler liberated heat can absorption reaction time, reduce cleaning solution temperature, be conducive to absorb pernicious gas, the recovery liquid of lower temperature is conducive to reclaim simultaneously.Therefore the present embodiment can either guarantee that the gas that tower top is discharged can reach national environmental standard, can guarantee that again reclaiming liquid concentration at the bottom of tower reaches recovery requirement, accomplishes not only energy-conservation but also environmental protection.
The waste gas that the utility model is applicable to the production systems such as ammonia synthesis and methyl alcohol is synthetic reclaims, in ammonia synthesis and the synthetic course of reaction of methyl alcohol, there is a small amount of inert gas not participate in reaction, this part inert gas will outwards discharge after system is assembled, owing to containing the pernicious gases such as a small amount of ammonia and methyl alcohol in discharge gas, utilize waste gas absorption tower of the present utility model just the pernicious gases such as the ammonia in this discharge gas and methyl alcohol can be sponged.Because the discharge amount of exhaust gas of the production systems such as ammonia synthesis and methyl alcohol is synthetic is large, in pernicious gas absorption process, exothermic heat of reaction amount is large, this has higher requirement to waste gas recovery tower, control requirement to the harmful components of the gas of recovery liquid concentration requirement and tower top discharge is higher, can meet the waste gas recovery requirement of the production systems such as ammonia synthesis and methyl alcohol synthesize through evidence the utility model completely.For the large production system of exothermic heat of reaction amount, in hydrops section, increase cooler and just can lower the temperature to hydrops section liquid, thereby reduce reaction temperature.
Claims (6)
1. a waste gas absorption tower, comprise tower body, the bottom of tower body is hydrops section (1), hydrops section (1) is located to be provided with the air inlet (11) entering for waste gas and is exported (14) for the recovery liquid that reclaims liquid outflow, the middle part of tower body has the first packing layer (21), the top of tower body is provided with the exhaust outlet (12) of discharging for purified gas, it is characterized in that: the top that the top of described tower body is positioned at the first packing layer (21) is provided with the second packing layer (22), in described the second packing layer (22), precision and the fineness of filler are all greater than the filler in the first packing layer (21), the top of the second packing layer (22) is provided with smart imbibition import (17), between the first packing layer (21) and the second packing layer (22), be provided with circulation fluid import (16), the hydrops section (1) of described tower body bottom locates to be also provided with circulation fluid outlet (15), this circulation fluid outlet (15) is passed through pipeline communication with described circulation fluid import (16).
2. a kind of waste gas absorption tower according to claim 1, is characterized in that: described circulation fluid outlet (15) and the pipeline between circulation fluid import (16) are provided with for the liquid of circulation fluid outlet (15) outflow being sent into the circulating pump (6) of circulation fluid import (16).
3. a kind of waste gas absorption tower according to claim 1, is characterized in that: in described tower body, be positioned to be provided with between circulation fluid import (15) and the first packing layer (21) and be subject to liquid bath (4) for what liquids and gases were mixed.
4. a kind of waste gas absorption tower according to claim 1, is characterized in that: in described tower body, be positioned at and between smart imbibition import (17) and the second packing layer (22), be provided with the smart imbibition distributor (5) for liquids and gases are mixed.
5. a kind of waste gas absorption tower according to claim 1, is characterized in that: described exhaust outlet (12) locates to be provided with the demister (3) for the drop of gas is removed.
6. according to a kind of waste gas absorption tower described in claim 1 ~ 5 any one, it is characterized in that: in the hydrops section (1) of described tower body bottom, be provided with cooler (7), this cooler (7) has cooling medium outlet (71) and cooling medium inlet (72), and described cooling medium outlet (71) and cooling medium inlet (72) are all arranged on tower body bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203106.7U CN203816465U (en) | 2014-04-24 | 2014-04-24 | Waste gas absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203106.7U CN203816465U (en) | 2014-04-24 | 2014-04-24 | Waste gas absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816465U true CN203816465U (en) | 2014-09-10 |
Family
ID=51472009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203106.7U Expired - Fee Related CN203816465U (en) | 2014-04-24 | 2014-04-24 | Waste gas absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920369A (en) * | 2014-04-24 | 2014-07-16 | 南京国昌化工科技有限公司 | Waste gas absorption tower |
| CN106430214A (en) * | 2015-08-12 | 2017-02-22 | 新特能源股份有限公司 | Quenching device and quenching process during synthesis of polycrystalline silicon |
-
2014
- 2014-04-24 CN CN201420203106.7U patent/CN203816465U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920369A (en) * | 2014-04-24 | 2014-07-16 | 南京国昌化工科技有限公司 | Waste gas absorption tower |
| CN106430214A (en) * | 2015-08-12 | 2017-02-22 | 新特能源股份有限公司 | Quenching device and quenching process during synthesis of polycrystalline silicon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |