CN113198274A - Ethylene oxide waste gas treatment system with condensation function - Google Patents
Ethylene oxide waste gas treatment system with condensation function Download PDFInfo
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- CN113198274A CN113198274A CN202110386436.9A CN202110386436A CN113198274A CN 113198274 A CN113198274 A CN 113198274A CN 202110386436 A CN202110386436 A CN 202110386436A CN 113198274 A CN113198274 A CN 113198274A
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- ethylene oxide
- air inlet
- waste gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
- B01D53/002—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 by condensation
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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
- B01D53/14—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 by absorption
- B01D53/1487—Removing organic compounds
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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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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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
- B01D53/22—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 by diffusion
- B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses an ethylene oxide waste gas treatment system with a condensation function, which aims to overcome the problem of low removal rate in the prior art and comprises a cyclone tower and a condensation tower, wherein the cyclone tower comprises a first tower body, the first tower body is provided with an air inlet, an air outlet and a sewage discharge outlet, the outer end of the air inlet is connected with a venturi tube, a cyclone plate is arranged in the tower body, a first spray pipe is arranged in the venturi tube, a second spray pipe is arranged between the adjacent cyclone plates, the condensation tower comprises a second tower body, the second tower body is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet, the first air inlet is connected with the air outlet, a coil pipe and a fan are fixedly arranged in the second tower body, the coil pipe and the fan are respectively arranged between the first air inlet and the first air outlet, the coil pipe is also connected between the second air inlet and the second air outlet, and a refrigerator is arranged outside the second tower body, the refrigerator is connected between the second air inlet and the second air outlet.
Description
Technical Field
The invention belongs to a waste gas treatment device, and particularly relates to an ethylene oxide waste gas treatment system with a condensation function.
Background
Ethylene oxide sterilization technology generally adopts ethylene oxide to sterilize articles such as pillows, gauze and the like, the ethylene oxide has strong sterilization capacity and penetration effect, the articles in the packaging bag can be sterilized, a large amount of ethylene oxide waste gas can be generated after sterilization, ethylene oxide residues exist, and the national regulation ethylene oxide waste gas emission standard is not more than 5mg/m 3.
Among the prior art, ethylene oxide waste gas treatment device includes the water absorption tower, and the top of water absorption tower is provided with shower nozzle and blast pipe, and the shower nozzle is used for spraying water smoke in to the water absorption tower, and the bottom of water absorption tower is provided with the intake pipe, and ethylene oxide waste gas flows in the water absorption tower through intake pipe, blast pipe to the water smoke can absorb the ethylene oxide in the ethylene oxide waste gas.
However, the prior art is not perfect, the water absorption mode is influenced by time and temperature, and the problems of poor absorption effect and low removal rate exist.
Disclosure of Invention
In order to overcome the defects and problems in the prior art, the invention provides an ethylene oxide waste gas treatment system with a condensation function.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ethylene oxide waste gas treatment system with a condensation function comprises a cyclone tower and a condensation tower, wherein the cyclone tower comprises a first tower body, the first tower body is provided with an air inlet, an air outlet and a sewage outlet, the outer end of the air inlet is connected with a venturi, at least two cyclone plates are arranged in the tower body, the air inlet, two or more cyclone plates, the air outlet and the sewage outlet are sequentially arranged on the first tower body from bottom to top, a first spray pipe is arranged in the venturi pipe, a second spray pipe is arranged between every two adjacent cyclone plates, the condensation tower comprises a second tower body, the second tower body is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet, the first air inlet is connected with the air outlet, a coil pipe and a fan are fixedly arranged in the second tower body, the coil pipe and the fan are respectively arranged between the first air inlet and the first air outlet, and the coil pipe is also connected between the second air inlet and the second air outlet, a refrigerating machine is arranged outside the second tower body and connected between the second air inlet and the second air outlet.
Preferably, a waterproof breathable film is fixedly arranged on the first air outlet.
Preferably, the first air inlet, the coiled pipe, the fan and the first air outlet are sequentially arranged on the second tower body from bottom to top, and the fan is an axial-flow fan.
Preferably, the second tower body stores ethylene oxide absorption liquid, and the first air inlet is opposite to the ethylene oxide absorption liquid.
Preferably, the first air inlet is provided with a check valve.
Preferably, the second air inlet is arranged at the lower end of the second tower body, the second air outlet is arranged at the upper end of the second tower body, the fan is arranged in the second tower body, the fan is an axial-flow fan, and the fan is arranged below the coiled pipe.
Preferably, the venturi comprises a contraction pipe section, a throat pipe section and an expansion pipe section which are sequentially arranged together, the expansion pipe section is connected to the air inlet, and the first spraying pipe is arranged in the contraction pipe section.
Preferably, the whirl plate comprises a blind plate, guide plates and a peripheral ring which are sequentially arranged together from inside to outside, thirty-six guide plates are arranged, and thirty-six guide plates are uniformly arranged in the circumferential direction of the blind plate.
Preferably, the guide plate is inclined, and the inclination angle of the guide plate is 20 °.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that:
(1) use during this ethylene oxide waste gas treatment system of taking condensation function, waste gas mixes in the venturi with between first shower spun water, form the sewage that contains impurity and outwards discharge through the drain, tail gas mixes with second shower spun water again, be formed with the whirl under the effect of whirl board, form the sewage that contains impurity once more and discharge through the drain, thereby reach and get rid of the dust, the effect of steam and ethylene oxide, consequently this ethylene oxide waste gas treatment system of taking condensation function has multiple purification, the rate of removal is high and the advantage that purifying effect is good.
(2) When the ethylene oxide waste gas treatment system with the condensation function is used, the condensing agent in the refrigerating machine is used as a condensing medium of waste gas, the refrigerating machine can refrigerate the condensing agent to be below 10 ℃ and flows from top to bottom in the coiled pipe, the waste gas in the second tower flows from bottom to top, the flowing directions of the condensing agent and the waste gas are opposite, and heat exchange is carried out between the refrigerant and the waste gas on the pipe wall of the coiled pipe, so that the purpose of liquefying ethylene oxide in the waste gas is achieved, gas-liquid separation is achieved under the action of the waterproof breathable film, and liquid containing ethylene oxide is absorbed by ethylene oxide absorption liquid to achieve the recycling effect.
(3) When the waste gas and the water sprayed out of the first spraying pipe are mixed together, the waste gas and the water sequentially pass through the contraction pipe section, the throat pipe section and the expansion pipe section, the flow velocity of the air flow in the contraction pipe section is gradually increased, the flow velocity of the air flow in the throat pipe section reaches the maximum value, the tail gas and the water mist can be fully mixed by the high-speed flowing air flow, the air film on the surface of the dust is broken, and the removal rate is further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic diagram of the venturi of the present invention;
FIG. 4 is a schematic view of the construction of the swirl plate of the present invention;
in the figure: 1-cyclone tower, 2-condensation tower, 11-first tower body, 12-venturi tube, 13-cyclone plate, 14-first spray pipe, 15-second spray pipe, 111-air inlet, 112-air outlet, 113-sewage outlet, 121-contraction pipe section, 122-throat pipe section, 123-expansion pipe section, 131-blind plate, 132-guide plate, 133-peripheral ring, 21-second tower body, 22-serpentine pipe, 23-ethylene oxide absorption liquid, 24-check valve, 26-refrigerator, 27-fan, 28-waterproof ventilated membrane, 211-first air inlet, 212-second air inlet, 213-first air outlet and 214-second air outlet.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings and the specific embodiments.
As shown in fig. 1 to 4, an ethylene oxide waste gas treatment system with a condensation function comprises a cyclone tower 1 and a condensation tower 2, wherein the cyclone tower 1 is used for removing dust in waste gas, water vapor and partial ethylene oxide, the cyclone tower 1 comprises a first tower body 11, an air inlet 111 is formed in the first tower body 11, an air outlet 112 and a sewage outlet 113 are formed in the first tower body 11, the air inlet 111 is formed in the upper end of the first tower body 11, the air inlet 111 and the sewage outlet 113 are respectively formed in the side surface of the first tower body 11, the sewage outlet 113 is close to the lower end of the first tower body 11, the sewage outlet 113, the air inlet 111 and the air outlet 112 are sequentially arranged on the first tower body 11 from bottom to top.
In this take ethylene oxide exhaust-gas treatment system of condensation function, waste gas accessible air intake 111 gets into in the first tower body 11, and the tail gas after the processing passes through air outlet 112 and outwards discharges to first tower body 11, and sewage outwards discharges through drain 113.
A venturi 12 is fixedly arranged at the outer side of the first tower body 11, the venturi 12 is connected to the air inlet 111, a first spray pipe 14 is arranged in the venturi 12, and the first spray pipe 14 is used for spraying water into the venturi 12.
At least two swirl plates 13 are arranged in the first tower body 11, a sewage outlet 113, an air inlet 111, the swirl plates 13 and an air outlet 112 are sequentially arranged on the first tower body 11 from bottom to top, when tail gas circulates between the air inlet 111 and the air outlet 112, the tail gas sequentially passes through the swirl plates 13 from bottom to top, the swirl plate 13 at the highest position is used for removing water mist, and other swirl plates 13 are used for removing dust and ethylene oxide in the tail gas.
And a second spray pipe 15 is arranged between the adjacent rotational flow plates 13, and the second spray pipe 15 is used for spraying water between the adjacent rotational flow plates 13.
Use this ethylene oxide waste gas treatment system who takes condensation function, waste gas sees your mixture with first shower 14 spun water in venturi tube 12, form the sewage that contains impurity and outwards discharge through drain 113, tail gas mixes with second shower 15 spun water again, be formed with the whirl under whirl board 13's effect, form the sewage that contains impurity once more and discharge through drain 113, thereby reach and get rid of the dust, the effect of steam and ethylene oxide, consequently this ethylene oxide waste gas treatment system who takes condensation function has multiple purification, the clearance is high and the advantage that purifying effect is good.
The venturi 12 comprises a contraction pipe section 121, a throat pipe section 122 and an expansion pipe section 123, the contraction pipe section 121, the throat pipe section 122 and the expansion pipe section 123 are sequentially arranged together from top to bottom, the expansion pipe section 123 is connected to the air inlet 111, and the first spray pipe 14 is arranged in the contraction pipe section 121.
When the waste gas and the water sprayed by the first spraying pipe 14 are mixed together, the waste gas and the water sequentially pass through the contraction pipe section 121, the throat pipe section 122 and the expansion pipe section 123, the flow velocity of the air flow in the contraction pipe section 121 is gradually increased, the flow velocity of the air flow in the throat pipe section 122 reaches the maximum value, the tail gas and the water mist can be fully mixed by the high-velocity flowing air flow, an air film on the surface of the dust is broken, and the removal rate is further improved.
All be provided with atomizer on first shower 14 and the second shower 15, atomizer is used for atomizing water, has improved the area of contact of water and waste gas, has improved the clearance.
The cyclone plate 13 comprises a blind plate 131, guide plates 132 and a peripheral ring 133, the blind plate 131, the guide plates 132 and the peripheral ring 133 are sequentially arranged together from inside to outside, thirty-six guide plates 132 are arranged, thirty-six guide plates 132 are uniformly arranged on the circumferential direction of the blind plate 131, the guide plates 132 are inclined, and the inclination angle of the guide plates 132 is 20 degrees.
The condensation tower 2 comprises a hollow second tower body 21, the cross section of the second tower body 21 is inverted T-shaped, the second tower body 21 is provided with a first air inlet 211, a first air outlet 213, a second air inlet 212 and a second air outlet 214, the first air outlet 213 is arranged at the upper end of the second tower body 21, the first air outlet 213 is higher than the first air inlet 211, the second air outlet 214 is arranged at the side surface of the second tower body 21, the second air inlet 212 is arranged at the side surface of the second tower body 21, and the second air inlet 212 is higher than the second air outlet 214.
The first air inlet 211 is connected to the air outlet 112, the second tower body 21 is internally and fixedly provided with a coiled pipe 22, the overall structure of the coiled pipe 22 is spiral, the coiled pipe is arranged between the first air inlet and the first air outlet, and when waste gas in the air outlet 112 flows into the first air inlet 211, the air flow passes through the coiled pipe 22 from bottom to top and contacts with the outer surface of the coiled pipe.
The serpentine tube 22 is further connected between the second air inlet 212 and the second air outlet 214, the refrigerator 26 is fixedly disposed outside the second tower body 21, the refrigerator 26 is also connected between the second air inlet 212 and the second air outlet 214, and the refrigerator 26 is configured to refrigerate the refrigerant and drive the refrigerant to flow through the serpentine tube 22.
When the ethylene oxide waste gas treatment system with the condensation function is used, a refrigerant is used as a condensation medium of waste gas, the air refrigerator 26 can refrigerate the refrigerant to be below 10 ℃ and flow from top to bottom in the coil pipe 22, the waste gas in the second tower body 21 flows from bottom to top, the flow directions of the refrigerant and the waste gas are opposite, and the refrigerant and the waste gas exchange heat on the pipe wall of the coil pipe 22, so that the purpose of liquefying ethylene oxide in the waste gas is achieved, gas-liquid separation is achieved under the action of the waterproof breathable film 28 and the dead weight, and liquid containing ethylene oxide is absorbed by ethylene oxide absorption liquid to achieve the effect of recycling.
The first air outlet 213 is fixedly provided with a waterproof breathable film 28, and the waterproof breathable film 28 is breathable and waterproof, so that liquid is prevented from being sprayed out through the first air outlet 213.
The first air inlet 211, the serpentine pipe 22, the fan 27 and the first air outlet 213 are sequentially arranged on the second tower body 21 from bottom to top, so that the waste gas flows from bottom to top, the fan 27 is an axial flow fan, the axial flow fan has the characteristic of axially discharging air, the fan 27 is fixedly arranged above the serpentine pipe 22, and accordingly air used for condensation is driven to flow through the serpentine pipe 22 from bottom to top, and the heat absorption efficiency is further improved.
The ethylene oxide absorption liquid 23 is stored in the second tower body 21, the ethylene oxide absorption liquid 23 is stored at the bottom of the second tower body 21, the first air inlet 211 faces downwards, the first air inlet 211 is opposite to the ethylene oxide absorption liquid 23, waste gas can directly pass through the ethylene oxide absorption liquid 23, and the purification effect of the ethylene oxide absorption liquid 23 on the waste gas is improved.
The first gas inlet 211 is provided with a check valve 24, and the check valve 24 prevents the exhaust gas from flowing back into the first tower body 11 through the first gas inlet 211.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a take ethylene oxide waste gas treatment system of condensation function, a serial communication port, including whirl tower (1) and condensing tower (2), whirl tower (1) is including first tower body (11), air intake (111) have been seted up on first tower body (11), air outlet (112) and drain (113), the outer end of air intake (111) is connected with venturi tube (12), be provided with two at least whirl boards (13) in the tower body, air intake (111), whirl board (13) more than two or two, air outlet (112) and drain (113) set gradually on first tower body (11) from bottom to top, be provided with first shower (14) in venturi tube (12), be provided with second shower (15) between adjacent whirl board (13), condensing tower (2) are including second tower body (21), seted up first air inlet (211) on second tower body (21), First gas outlet (213), second air inlet (212) and second gas outlet (214), first air inlet (211) are connected on air outlet (112), second tower body (21) internal fixation is provided with coiled pipe (22) and fan (27), coiled pipe (22), fan (27) set up respectively between first air inlet (211) and first gas outlet (213), coiled pipe (22) are connected between second air inlet (212) and second gas outlet (214), second tower body (21) are provided with refrigerator (26) outward, refrigerator (26) also are connected between second air inlet (212) and second gas outlet (214).
2. The ethylene oxide waste gas treatment system with the condensation function as claimed in claim 1, wherein a waterproof breathable membrane (28) is fixedly arranged on the first gas outlet (213).
3. The ethylene oxide waste gas treatment system with the condensation function as claimed in claim 1, wherein the first air inlet (211), the serpentine pipe (22), the fan (27) and the first air outlet (213) are sequentially arranged on the second tower body (2) from bottom to top, and the fan (27) is an axial flow fan (27).
4. The system for treating the ethylene oxide waste gas with the condensation function according to claim 1, wherein the second tower body (21) stores an ethylene oxide absorption liquid (23), and the first gas inlet (211) is opposite to the ethylene oxide absorption liquid (23).
5. The ethylene oxide off-gas treatment system with the condensation function according to claim 4, wherein a check valve (24) is provided on the first gas inlet (211).
6. The ethylene oxide waste gas treatment system with the condensation function as claimed in claim 1, wherein the venturi (12) comprises a contraction pipe section (121), a throat pipe section (122) and an expansion pipe section (123) which are sequentially arranged together, the expansion pipe section (123) is connected to the air inlet (111), and the first spray pipe (14) is arranged in the contraction pipe section (121).
7. The ethylene oxide waste gas treatment system with the condensation function of claim 1, wherein the cyclone plate (13) comprises a blind plate (131), a guide plate (132) and a peripheral ring (133) which are sequentially arranged from inside to outside, the guide plate (132) comprises thirty-six guide plates, and the thirty-six guide plates (132) are uniformly arranged on the circumferential direction of the blind plate (131).
8. The system for treating the off-gas of ethylene oxide with condensation function according to claim 7, wherein the guide plate (132) is inclined, and the angle of inclination of the guide plate (132) is 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386436.9A CN113198274A (en) | 2021-04-12 | 2021-04-12 | Ethylene oxide waste gas treatment system with condensation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386436.9A CN113198274A (en) | 2021-04-12 | 2021-04-12 | Ethylene oxide waste gas treatment system with condensation function |
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| Publication Number | Publication Date |
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| CN113198274A true CN113198274A (en) | 2021-08-03 |
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| CN202110386436.9A Pending CN113198274A (en) | 2021-04-12 | 2021-04-12 | Ethylene oxide waste gas treatment system with condensation function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115646144A (en) * | 2022-11-04 | 2023-01-31 | 常熟荣瑞灭菌技术有限公司 | Waste gas recycling processing apparatus of ethylene oxide sterilizer |
| WO2024038101A1 (en) * | 2022-08-17 | 2024-02-22 | Sabic Global Technologies B.V. | Systems and methods for separating a gas mixture that includes organic and inorganic compounds |
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| CN112354319A (en) * | 2020-11-25 | 2021-02-12 | 武汉时泰环保科技有限公司 | Multifunctional comprehensive rotational flow plate tower |
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| CN201618489U (en) * | 2009-11-04 | 2010-11-03 | 煤炭科学研究总院杭州环境保护研究所 | Chemical waste gas spraying swirl combined purification device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024038101A1 (en) * | 2022-08-17 | 2024-02-22 | Sabic Global Technologies B.V. | Systems and methods for separating a gas mixture that includes organic and inorganic compounds |
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| CN115646144B (en) * | 2022-11-04 | 2024-04-02 | 常熟荣瑞灭菌技术有限公司 | Waste gas recycling treatment device of ethylene oxide sterilizing cabinet |
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