CN113694712A - Can absorb novel water of reation kettle tail gas and penetrate vacuum device - Google Patents
Can absorb novel water of reation kettle tail gas and penetrate vacuum device Download PDFInfo
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- CN113694712A CN113694712A CN202110993512.2A CN202110993512A CN113694712A CN 113694712 A CN113694712 A CN 113694712A CN 202110993512 A CN202110993512 A CN 202110993512A CN 113694712 A CN113694712 A CN 113694712A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims description 78
- 238000010521 absorption reaction Methods 0.000 claims description 52
- 238000003860 storage Methods 0.000 claims description 40
- 239000011552 falling film Substances 0.000 claims description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 10
- 239000010408 film Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 abstract description 13
- 239000002085 irritant Substances 0.000 abstract description 13
- 231100000021 irritant Toxicity 0.000 abstract description 13
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 63
- 239000003570 air Substances 0.000 description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 5
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 5
- 230000003472 neutralizing effect Effects 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/202—Single element halogens
- B01D2257/2025—Chlorine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a novel water jet vacuum device capable of absorbing tail gas of a reaction kettle, which relates to the technical field of tail gas treatment devices and solves the problem that a tail gas recovery device in the prior art cannot simultaneously meet the requirements of tail gas collection and treatment after reaction and neutralization of the reaction kettle; the water jet vacuum device can perform harmless cleaning treatment on acidic and irritant tail gas in the reaction process of the reaction kettle and after the reaction is finished, effectively prevents the tail gas from escaping into a reaction area, and has high removal efficiency.
Description
Technical Field
The invention relates to the technical field of a reaction kettle tail gas treatment device, in particular to the technical field of a water jet vacuum device.
Background
The reaction kettle tail gas is mainly caused by solvent volatilization. When the reaction kettle normally carries out reaction, the reaction kettle needs to be carried out under the normal pressure condition, and at the moment, an emptying valve on the reaction kettle is in an open state, so that tail gas can inevitably escape. After the reaction is finished, the tail gas of the reaction kettle is generally pumped from the production area by a water jet vacuum pump unit and then is discharged from a tail gas discharge tower. The mode can not effectively collect and treat the tail gas of the reaction kettle, causes bad influence on equipment facilities and surrounding environment in a production area, and is not in accordance with the environmental protection policy of energy conservation and emission reduction.
Patent application 201711103199.0 discloses a chlorine tail gas recovery device in a reaction kettle. The tail gas recovery device comprises a tail gas inlet pipe, one end of which is communicated with the reaction kettle; the air inlet of the water flushing type vacuum pump is communicated with the other end of the tail gas inlet pipe; the top of the first-stage falling film absorption tower is communicated with a liquid outlet of the water-washed vacuum pump; the middle lower part of the second-stage falling film absorption tower is provided with a connecting pipe which is communicated with the middle lower part of the first-stage falling film absorption tower; the induced draft fan is communicated with the top of the second-stage falling film absorption tower; and the top of the alkaline washing tower is communicated with the induced draft fan.
Although the falling film absorption tower and the water flush type vacuum pump are combined together, the tail gas recovery device achieves the purpose of tail gas treatment to a certain extent. However, the water-flushed vacuum pump and the first-stage falling film absorption tower are connected in series, and the water-flushed vacuum pump and the first-stage falling film absorption tower can only be simultaneously started in the use process to suck tail gas from the reaction kettle in a vacuumizing mode, so that the tail gas can only be pumped after the reaction is finished, and the tail gas escaping from the emptying valve in the reaction process cannot be effectively collected and treated.
Disclosure of Invention
The invention aims to: in order to solve the technical problem, the invention provides a novel water jet vacuum device capable of absorbing tail gas of a reaction kettle.
The invention specifically adopts the following technical scheme for realizing the purpose:
a novel water jet vacuum device capable of absorbing tail gas of a reaction kettle. The water jet vacuum device comprises:
the liquid storage tank is used for storing alkaline absorption liquid, a liquid inlet is formed in the side upper wall of the liquid storage tank, a drain outlet is formed in the side lower wall of the liquid storage tank, and a vent is formed in the top of the liquid storage tank;
the water outlet port and the water return port of the first circulating pipeline are communicated with the liquid storage tank;
the water injection vacuum pump unit comprises a centrifugal pump and an injector which are sequentially arranged on the first circulating pipeline, a side suction port of the injector is communicated with a buffer tank, and an air suction port communicated with a reaction kettle emptying valve is arranged at the top of the buffer tank;
the water outlet port and the water return port of the second circulating pipeline are communicated with the liquid storage tank;
falling liquid film absorption tower unit, falling liquid film absorption tower unit is including setting gradually circulating pump and falling liquid film absorption tower on the second circulation pipeline, falling liquid film absorption tower bottom be provided with the connector of liquid reserve tank top intercommunication, the top be provided with the air inlet of reation kettle blowoff valve intercommunication, the lower lateral wall is provided with the gas outlet with exhaust-gas discharge tower intercommunication.
Further, the falling film absorption tower is positioned at the top of the liquid storage tank.
Further, the liquid inlet, the air vent, the drain outlet, the air suction port, the air inlet and the air outlet are respectively provided with a switch valve. Further, the switch valve is an electromagnetic valve.
Further, a condenser is arranged in the liquid storage tank.
Further, the alkaline absorption liquid is a sodium hydroxide solution.
Further, the mass concentration of the sodium hydroxide solution is 10-20 wt%.
The invention has the following beneficial effects:
(1) according to the invention, the water tank of the water jet vacuum pump is upgraded into a set of falling film absorption tower equipment, on the basis of ensuring the original use function, the acidic and irritant tail gas sucked by the vacuum system is neutralized, and then the falling film absorption tower is matched, so that the discharged tail gas cannot cause secondary environmental pollution, and the harmless and clean treatment of the acidic and irritant tail gas is realized;
(2) the water jet vacuum device has various functions, can be flexibly adjusted according to whether vacuum is required or not, can only use the falling film absorption tower unit to treat acidic and irritant tail gas in the reaction process of the reaction kettle, and can also use the falling film absorption tower unit and the water jet vacuum pump unit simultaneously to treat the acidic and irritant tail gas after the reaction of the reaction kettle is finished, so that the tail gas generated by the reaction kettle is thoroughly prevented from escaping in a reaction area;
(3) the water-jet vacuum device has the advantages that the removal efficiency of chlorine is 68.6-69.1%, the removal efficiency of hydrogen chloride is 56.4-58.7%, the treated tail gas can reach the tail gas emission standard specified by the state, and the water-jet vacuum device meets the requirements of environmental protection policies.
Drawings
FIG. 1 is a schematic structural diagram of a novel water jet vacuum device capable of absorbing tail gas of a reaction kettle according to the invention;
FIG. 2 is a left side view of the novel water jet vacuum device capable of absorbing the tail gas of the reaction kettle according to the present invention;
reference numerals: 1-a liquid storage tank; 2-liquid inlet; 3-a vent; 4-a sewage draining outlet; 5-a first circulation line; 6-a centrifugal pump; 7-an ejector; 8-side suction port; 9-a buffer tank; 10-air entry; 11-a second circulation line; 12-a circulation pump; 13-a falling film absorption tower; 14-connection port; 15-air inlet; 16-an air outlet; 17-switching the valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 and fig. 2, the present embodiment provides a novel water jet vacuum apparatus capable of absorbing tail gas of a reaction kettle, including: the device comprises a liquid storage tank 1, wherein the liquid storage tank 1 is used for storing alkaline absorption liquid, a liquid inlet 2 is arranged on the side upper wall of the liquid storage tank 1, a vent 3 is arranged at the top of the liquid storage tank 1, and a sewage outlet 4 is arranged on the side lower wall of the liquid storage tank; the water outlet port and the water return port of the first circulating pipeline 5 are communicated with the liquid storage tank 1; the water injection vacuum pump unit comprises a centrifugal pump 6 and an injector 7 which are sequentially arranged on a first circulating pipeline 5, a side suction port 8 of the injector 7 is communicated with a buffer tank 9, and the top of the buffer tank 9 is provided with a suction port 10 communicated with a reaction kettle emptying valve; the water outlet port and the water return port of the second circulating pipeline 11 are communicated with the liquid storage tank 1; falling film absorption tower unit, falling film absorption tower unit are including setting gradually circulating pump 12 and falling film absorption tower 13 on second circulation pipeline 11, and falling film absorption tower 13 bottom is provided with the connector 14 with 1 intercommunication of liquid reserve tank, and falling film absorption tower 13 top is provided with the air inlet 15 with reation kettle blowoff valve intercommunication, and falling film absorption tower 13 downside wall is provided with the gas outlet 16 with the exhaust-gas discharge tower intercommunication.
By adopting the technical scheme and optimizing the structure of the common original water jet vacuum pump system, the novel water jet vacuum device capable of absorbing the tail gas of the reaction kettle has the following two working modes.
In the reaction kettle normal pressure reaction process, only the falling film absorption tower unit is started, acidic and irritant tail gas enters from the gas inlet 15 arranged at the top of the falling film absorption tower 13, the alkaline absorption liquid in the liquid storage tank 1 continuously circularly flows through the second circulating pipeline 11, and is sprayed downwards from the top of the falling film absorption tower 13, gas and liquid phases are in parallel flow, and the effect of absorbing the neutralizing tail gas is better. The liquid which absorbs and neutralizes the acidic and irritant tail gas is discharged into the liquid storage tank 1 from the bottom of the tower, and the purified gas is discharged from the gas outlet 16 and is discharged at high altitude through the tail gas discharge tower.
After the reaction of the reaction kettle is finished, the water jet vacuum pump unit and the falling film absorption tower unit are started simultaneously, and the water jet vacuum pump unit is utilized to enable the alkaline absorption liquid in the liquid storage tank 1 to be continuously and circularly jetted through the first circulating pipeline 5, so that the acidic and irritant tail gas generated in the reaction kettle is stably sucked and jetted into the liquid storage tank 1, and the effects of quickly mixing and neutralizing the acidic and irritant tail gas and the alkaline absorption liquid in the liquid storage tank 1 are achieved. Meanwhile, the unneutralized acidic and irritant tail gas moves to the top of the falling film absorption tower 13 through the connecting port 14, the alkaline absorption liquid in the liquid storage tank 1 continuously and circularly flows through the second circulating pipeline 11, the alkaline absorption liquid is sprayed downwards from the top of the falling film absorption tower 13, gas and liquid are in counter-current flow, the effect of absorbing and neutralizing the tail gas is excellent, the liquid absorbing and neutralizing the acidic and irritant tail gas is discharged into the liquid storage tank 1 from the bottom of the tower, and the purified gas is discharged from the gas outlet 16 and is discharged at high altitude through the tail gas discharge tower.
The novel water jet vacuum device capable of absorbing the tail gas of the reaction kettle provided by the invention has various functions, can be flexibly adjusted according to whether vacuum is needed or not, can not only suck the tail gas in the reaction kettle after reaction, but also can effectively collect and treat the tail gas in the reaction kettle in the reaction process. And the water jet vacuum device has simple structure, convenient processing and manufacturing and high practicability.
The liquid inlet 2 arranged at the top of the liquid storage tank 1 is used for replacing alkaline absorption liquid in the liquid storage tank 1. The vent 3 that the top of liquid reserve tank 1 set up when being used for changing alkaline absorption liquid balances atmospheric pressure, does not open at ordinary times. The lower side wall of the liquid storage tank 1 is provided with a sewage discharge outlet 4 for discharging alkaline absorption liquid to be replaced and discharging cleaned sewage when overhauling and cleaning.
It will be understood that the reactor and the offgas discharging tower mentioned in the above technical solution are not part of the water jet vacuum apparatus of the present invention, but are only for illustrating the connection relationship between the water jet vacuum apparatus and the offgas source reactor and the offgas final discharging apparatus. It should be noted that, in general, the exhaust emission tower is set to be at least 25m, and the high-altitude emission meets the environmental protection policy of energy conservation and emission reduction.
Further, considering the convenience that acid and irritant tail gas are discharged into the falling film absorption tower 13 from the liquid storage tank 1, the falling film absorption tower 13 is arranged at the top of the liquid storage tank 1, the connecting port 14 is directly connected between the falling film absorption tower 13 and the liquid storage tank 1, no additional pipeline is arranged, and the tail gas in the liquid storage tank 1 can directly rise into the falling film absorption tower 13 through the connecting port 14.
Further, the liquid inlet 2, the air vent 3, the sewage draining outlet 4, the air suction port 10, the air inlet 15 and the air outlet 16 are respectively provided with a switch valve 17. Further, in order to improve the degree of automation of the adjustment of each on-off valve 17, the on-off valve 17 is a solenoid valve.
Further, a condenser (not shown) is arranged in the liquid storage tank 1, so that the cooling effect on the water injection vacuum pump unit is achieved, the influence of overhigh temperature on the working vacuum degree of the water injection vacuum pump unit is effectively avoided, and the water injection vacuum pump unit is ensured to work stably and efficiently.
Further, the alkaline absorption liquid stored in the liquid storage tank 1 is a sodium hydroxide solution, and the neutralizing effect on acidic and irritant tail gas is better. The initial mass concentration of the sodium hydroxide solution used in this example was 20 wt%. And detecting the pH value of the water tank, and replacing when the solution is neutral or slightly acidic, wherein the replacement frequency depends on the amount of the absorbed acid gas.
Example 2
The tail gas generated from the synthesis line was treated by the novel water jet vacuum apparatus capable of absorbing the tail gas of the reaction vessel in example 1, and the following tests were conducted by a third-party testing company.
Detection time: and (4) starting to enter the field for sampling in 2018, 7 and 20 months, and completing the detection work in 2018, 8 and 5 months in a laboratory.
Detection unit: henan is preferably Tech technologies, Inc.
Detecting the content: the waste gas flow, the emission concentration and the emission rate of the inlet and the outlet of the synthesis line reaction tail gas treatment facility.
The detection and analysis method comprises the following steps: chlorine gas was detected according to standard HJ/T30-1999 (methyl orange spectrophotometry for chlorine in fixed pollutant effluents) and hydrogen chloride was detected according to standard HJ 549-2016 (ion chromatography for measuring ambient air and waste hydrogen chloride).
And (3) detection results: the details are shown in tables 1 and 2 below.
TABLE 1 chlorine treatment monitoring results of the tail gas of the synthesis reaction
Note: GB16297-1996 Standard Specification, Cl2The maximum allowable discharge concentration is 65mg/m3The maximum allowable discharge rate is 0.52kg/h, and the limit value of the monitoring concentration of the unorganized discharge is 0.12mg/m3。
TABLE 2 monitoring results of hydrogen chloride treatment of synthesis reaction tail gas
Note: GB16297-1996 Standard specifies that the maximum allowable HCl emission concentration is 100mg/m3The maximum allowable discharge rate is 0.92kg/h, and the limit value of the monitoring concentration of the unorganized discharge is 0.20mg/m3。
Claims (7)
1. The utility model provides a can absorb novel water of reation kettle tail gas and penetrate vacuum apparatus which characterized in that includes:
the liquid storage tank is used for storing alkaline absorption liquid, a liquid inlet is formed in the side upper wall of the liquid storage tank, a drain outlet is formed in the side lower wall of the liquid storage tank, and a vent is formed in the top of the liquid storage tank;
the water outlet port and the water return port of the first circulating pipeline are communicated with the liquid storage tank;
the water injection vacuum pump unit comprises a centrifugal pump and an injector which are sequentially arranged on the first circulating pipeline, a side suction port of the injector is communicated with a buffer tank, and an air suction port communicated with a reaction kettle emptying valve is arranged at the top of the buffer tank;
the water outlet port and the water return port of the second circulating pipeline are communicated with the liquid storage tank;
falling liquid film absorption tower unit, falling liquid film absorption tower unit is including setting gradually circulating pump and falling liquid film absorption tower on the second circulation pipeline, falling liquid film absorption tower bottom be provided with the connector of liquid reserve tank top intercommunication, the top be provided with the air inlet of reation kettle blowoff valve intercommunication, the lower lateral wall is provided with the gas outlet with exhaust-gas discharge tower intercommunication.
2. The novel water-jet vacuum device capable of absorbing tail gas of a reaction kettle according to claim 1, wherein the falling film absorption tower is positioned at the top of the liquid storage tank.
3. The novel water jet vacuum device capable of absorbing tail gas of a reaction kettle according to claim 1 or 2, wherein switch valves are respectively arranged on the liquid inlet, the air vent, the sewage outlet, the air suction port, the air inlet and the air outlet.
4. The novel water-jet vacuum device capable of absorbing tail gas of a reaction kettle according to claim 3, characterized in that the switch valve is a solenoid valve.
5. The novel water jet vacuum device capable of absorbing tail gas of a reaction kettle according to claim 1 or 2, wherein a condenser is arranged in the liquid storage tank.
6. The novel water-jet vacuum device capable of absorbing the tail gas of the reaction kettle according to claim 1 or 2, wherein the alkaline absorption liquid is a sodium hydroxide solution.
7. The novel water-jet vacuum device capable of absorbing tail gas of a reaction kettle according to claim 6, wherein the mass concentration of the sodium hydroxide solution is 10-20 wt%.
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|---|---|---|---|
| CN202110993512.2A CN113694712A (en) | 2021-08-27 | 2021-08-27 | Can absorb novel water of reation kettle tail gas and penetrate vacuum device |
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| CN202110993512.2A CN113694712A (en) | 2021-08-27 | 2021-08-27 | Can absorb novel water of reation kettle tail gas and penetrate vacuum device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151459A (en) * | 2011-01-19 | 2011-08-17 | 陈群 | Constant-pressure tank tail gas purification device with 'breathing' function |
| CN203030168U (en) * | 2012-12-26 | 2013-07-03 | 溧阳维信生物科技有限公司 | Sucralose tail gas absorption process device |
| CN104028100A (en) * | 2013-12-04 | 2014-09-10 | 刘少军 | Absorption technology of oxynitride gas at normal pressure and apparatus |
| CN110479059A (en) * | 2019-09-06 | 2019-11-22 | 江苏南大华兴环保科技股份公司 | Trimethylamine exhaust gas recovery system and method in a kind of Parylene production process |
| CN110665337A (en) * | 2018-07-03 | 2020-01-10 | 山东恒昌圣诚化工股份有限公司 | Ammonia tail gas recovery device |
-
2021
- 2021-08-27 CN CN202110993512.2A patent/CN113694712A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151459A (en) * | 2011-01-19 | 2011-08-17 | 陈群 | Constant-pressure tank tail gas purification device with 'breathing' function |
| CN203030168U (en) * | 2012-12-26 | 2013-07-03 | 溧阳维信生物科技有限公司 | Sucralose tail gas absorption process device |
| CN104028100A (en) * | 2013-12-04 | 2014-09-10 | 刘少军 | Absorption technology of oxynitride gas at normal pressure and apparatus |
| CN110665337A (en) * | 2018-07-03 | 2020-01-10 | 山东恒昌圣诚化工股份有限公司 | Ammonia tail gas recovery device |
| CN110479059A (en) * | 2019-09-06 | 2019-11-22 | 江苏南大华兴环保科技股份公司 | Trimethylamine exhaust gas recovery system and method in a kind of Parylene production process |
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