CN218077293U - Micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas - Google Patents
Micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas Download PDFInfo
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- CN218077293U CN218077293U CN202222131429.7U CN202222131429U CN218077293U CN 218077293 U CN218077293 U CN 218077293U CN 202222131429 U CN202222131429 U CN 202222131429U CN 218077293 U CN218077293 U CN 218077293U
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Abstract
The utility model discloses a micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas, which comprises a tower body, wherein a water distributor and an aerator are sequentially arranged in the tower body from top to bottom, the water distributor is connected with a first water pump through a pipeline, and the first water pump is used for conveying a solvent capable of dissolving ethylene oxide into the tower body through the water distributor; the aerator is connected with a micro-nano bubble generator through a pipeline, and the micro-nano bubble generator is used for conveying ethylene oxide micro-nano bubbles into the tower body through the aerator; the top of the tower body is communicated with an exhaust pipe, and the bottom of the side wall of the tower body is communicated with a drain pipe. This micro-nano aeration tower device can form micro-nano bubble with high concentration ethylene oxide preliminary treatment, very big improvement the specific surface area of ethylene oxide waste gas and solvent contact to can improve the mass transfer effect, it is good to the purifying effect of high concentration ethylene oxide waste gas, and can avoid ethylene oxide contact high temperature and electric spark, the security is higher.
Description
Technical Field
The utility model relates to an ethylene oxide waste gas treatment technical field especially relates to a micro-nano aeration tower device for high concentration ethylene oxide waste gas purification.
Background
Ethylene oxide is a dangerous chemical and also an important petrochemical intermediate product, is liquid at normal temperature, and can generate and discharge high-concentration ethylene oxide waste gas by part of petrochemical enterprises due to volatility of ethylene oxide. Because ethylene oxide is explosive, easy to polymerize and easy to decompose due to its extremely active chemical property, the conventional technologies for treating organic waste gas, such as combustion technology and low-temperature plasma technology, may cause safety accidents during the operation of equipment due to high temperature, electric sparks and the like.
In consideration of safety, high-concentration ethylene oxide waste gas is generally purified by three different types of spray towers such as water washing, alkali washing, acid washing and the like, the spray towers atomize water, alkali liquor and acid liquor to improve the surface area of an adsorption solvent, increase the total area of a 'retention membrane' of gas-liquid mass transfer, enhance the physical dissolution and chemical adsorption effects of gaseous ethylene oxide molecules through the gas-liquid mass transfer, and further reduce the concentration of ethylene oxide in the waste gas. However, the amount of ethylene oxide dissolved in the liquid solvent is also limited because of the limited volume of solvent sprayed per unit time in the spray tower and the limited surface area of the liquid solvent to be atomized. After the high-concentration ethylene oxide waste gas is treated by the spray tower, the concentration of ethylene oxide is still higher, so the emission of the high-concentration ethylene oxide waste gas treated by the spray tower still does not reach the standard under the common condition, and therefore, a device for purifying the high-concentration ethylene oxide waste gas needs to be designed.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem who exists among the background art, the utility model provides a micro-nano aeration tower device for high concentration ethylene oxide exhaust purification.
The utility model provides a micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas, which comprises a tower body, wherein a water distributor and an aerator are sequentially arranged in the tower body from top to bottom, the water distributor is connected with a first water pump through a pipeline, and the first water pump is used for conveying a solvent capable of dissolving ethylene oxide into the tower body through the water distributor; the aerator is connected with a micro-nano bubble generator through a pipeline, and the micro-nano bubble generator is used for conveying ethylene oxide micro-nano bubbles into the tower body through the aerator; the top intercommunication of tower body has the blast pipe, and the lateral wall bottom intercommunication of tower body has the drain pipe.
Preferably, the tower further comprises a water atomizer, the water atomizer is arranged inside the tower body and located above the water distributor, and the water atomizer is connected with the second water pump through a pipeline.
Preferably, the drain pipe includes first drain pipe and second drain pipe, and the tower body has the buffer memory water tank through first drain pipe and second drain pipe intercommunication, and the height that highly is higher than the second drain pipe of first drain pipe, buffer water tank intercommunication have sewage discharge pipe, and sewage discharge pipe highly is less than the height of second drain pipe.
Preferably, the aeration openings of the aerators are directed downwards.
Preferably, the water distribution port of the water distributor faces downwards.
Preferably, an ethylene oxide concentration detector is installed in the exhaust pipe.
The utility model discloses a micro-nano aeration tower device, through from top to bottom installation water-locator and aerator in the tower body, the solvent is carried to the water-locator, and micro-nano bubble generator is connected to the aerator, can form micro-nano bubble with high concentration ethylene oxide preliminary treatment, very big improvement the specific surface area of ethylene oxide waste gas and solvent contact to can improve the mass transfer effect.
Therefore, the micro-nano aeration tower device has a good purification effect on high-concentration ethylene oxide waste gas, can avoid ethylene oxide from contacting high temperature and electric sparks, and has high safety.
Drawings
Fig. 1 is a schematic structural diagram of a micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas in an embodiment.
Detailed Description
Please refer to fig. 1, according to the embodiment of the present invention, a micro-nano aeration tower apparatus for purifying high concentration ethylene oxide waste gas, comprises a tower body 1, wherein a water distributor 2 and an aerator 3 are sequentially arranged inside the tower body 1 from top to bottom, the water distributor 2 is connected to a first water pump 4 through a pipeline, and the first water pump 4 is used for conveying a solvent capable of dissolving ethylene oxide into the tower body 1 through the water distributor 2. The aerator 3 is connected with a micro-nano bubble generator 5 through a pipeline, and the micro-nano bubble generator 5 is used for conveying ethylene oxide micro-nano bubbles into the tower body 1 through the aerator 3. The top of the tower body 1 is communicated with an exhaust pipe 6, and the exhaust pipe 6 is used for discharging the purified waste gas in the tower body 1. The bottom of the side wall of the tower body 1 is communicated with a drain pipe which is used for discharging the waste water in the tower body 1.
When the micro-nano aeration tower device is used for treating ethylene oxide waste gas, purified water can be used as a solvent, the water distributor 2 enables the solvent to flow into the tower body 1, and the aerator 3 introduces ethylene oxide bubbles from the bottom of the tower body 1, so that the ethylene oxide waste gas can be dissolved in the solvent.
It is worth mentioning that the solvent in the tower body 1 needs to have a higher liquid level, as shown in fig. 1, the liquid level can be higher than the water distributor 2, so that a larger pressure can be provided to the micro-nano bubbles, the partial pressure of the ethylene oxide is increased, and according to henry's law, the partial pressure increase of the ethylene oxide in the gas phase can improve the solubility of the ethylene oxide in the liquid phase.
According to the micro-nano aeration tower device of this embodiment, because high concentration ethylene oxide waste gas can produce micro-nano bubble through the aeration behind micro-nano bubble generator 5 processing, the bubble diameter is between 10 microns to hundreds of nanometers, and 1 cubic meter's high concentration ethylene oxide waste gas's surface area will reach 3 x 105 square meters, consequently, very big improvement ethylene oxide waste gas and the solvent contacted specific surface area, improved the effect of gas-liquid mass transfer. In addition, as the liquid solvent and the waste gas move in the same direction, the gas-liquid phase can provide extra pressure and disturbance to the micro-nano bubbles, so that the waste gas is dissolved more fully.
Therefore, the micro-nano aeration tower device has a good purification effect on high-concentration ethylene oxide waste gas.
In this embodiment, the water distributor 2 has its water distribution opening directed downward, and the aerator 3 has its aeration opening directed downward. The aeration direction of the aerator 3 is downward, so that the bubbles have downward initial velocity, and the retention time of the bubbles in the liquid solvent is prolonged, thereby improving the purification efficiency of the ethylene oxide. The water distributor 2 enables the solvent to have a downward initial speed, the upward speed of micro-nano bubbles can be reduced, the retention time of waste gas in a liquid phase is prolonged, and the dissolving time is prolonged.
In some embodiments, the micro-nano aeration tower device further comprises a water atomizer 7, the water atomizer 7 is installed inside the tower body 1 and above the water distributor 2, and the water atomizer 7 is connected with the second water pump 8 through a pipeline. The water atomizer 7 can spray atomized solvent, the water atomizer 7 is used for standby, when the concentration of the ethylene oxide waste gas after treatment still exceeds the expected concentration, the water atomizer 7 can be opened, and the ethylene oxide is further treated by the atomized solvent, so that the purification effect is improved.
In some embodiments, an ethylene oxide concentration detector 13 is installed in the exhaust pipe 6, and the concentration of ethylene oxide contained in the treated exhaust gas can be monitored in real time by the ethylene oxide concentration detector 13. Meanwhile, the water atomizer 7 is convenient to start when the treatment does not reach the standard.
In some embodiments, the drainage pipes comprise a first drainage pipe 9 and a second drainage pipe 10, the tower body 1 is communicated with a buffer water tank 11 through the first drainage pipe 9 and the second drainage pipe 10, the first drainage pipe 9 is higher than the second drainage pipe 10, the buffer water tank 11 is communicated with a sewage discharge pipe 12, and the sewage discharge pipe 12 is lower than the second drainage pipe 10.
The sewage discharge pipe 12 can connect the buffer water tank 11 with a factory sewage treatment station, and wastewater in the buffer water tank 11 can be discharged to the sewage treatment station for treatment by controlling the opening and closing of the sewage discharge pipe 12. When discharging waste water, the bubble also can get into buffer tank 11, and the bubble can come up to the top of water tank under the buoyancy, when accumulating certain volume, can get back to the aeration tower again from the higher first drain pipe 9 department in position, consequently, through the high design in position of first drain pipe 9, second drain pipe 10 and sewage discharge pipe 12, can avoid ethylene oxide waste gas to discharge and polluted environment from sewage discharge pipe 12.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (6)
1. A micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas is characterized by comprising a tower body (1), wherein a water distributor (2) and an aerator (3) are sequentially arranged in the tower body (1) from top to bottom, the water distributor (2) is connected with a first water pump (4) through a pipeline, and the first water pump (4) is used for conveying a solvent capable of dissolving ethylene oxide into the tower body (1) through the water distributor (2); the aerator (3) is connected with a micro-nano bubble generator (5) through a pipeline, and the micro-nano bubble generator (5) is used for conveying ethylene oxide micro-nano bubbles into the tower body (1) through the aerator (3); the top intercommunication of tower body (1) has blast pipe (6), and the lateral wall bottom intercommunication of tower body (1) has the drain pipe.
2. The micro-nano aeration tower device for purifying the high-concentration ethylene oxide waste gas according to claim 1, further comprising a water atomizer (7), wherein the water atomizer (7) is installed inside the tower body (1) and above the water distributor (2), and the water atomizer (7) is connected with the second water pump (8) through a pipeline.
3. The micro-nano aeration tower device for purifying the high-concentration ethylene oxide waste gas according to claim 1, wherein the drain pipe comprises a first drain pipe (9) and a second drain pipe (10), the tower body (1) is communicated with a buffer water tank (11) through the first drain pipe (9) and the second drain pipe (10), the first drain pipe (9) is higher than the second drain pipe (10), the buffer water tank (11) is communicated with a sewage discharge pipe (12), and the sewage discharge pipe (12) is lower than the second drain pipe (10).
4. The micro-nano aeration tower device for purifying the waste gas of the high-concentration ethylene oxide according to claim 1, wherein the aeration opening of the aerator (3) faces downwards.
5. The micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas according to claim 1, wherein the water distribution port of the water distributor (2) faces downwards.
6. The micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas according to any one of claims 1 to 5, wherein an ethylene oxide concentration detector (13) is installed in the exhaust pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222131429.7U CN218077293U (en) | 2022-08-12 | 2022-08-12 | Micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222131429.7U CN218077293U (en) | 2022-08-12 | 2022-08-12 | Micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218077293U true CN218077293U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222131429.7U Active CN218077293U (en) | 2022-08-12 | 2022-08-12 | Micro-nano aeration tower device for purifying high-concentration ethylene oxide waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218077293U (en) |
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2022
- 2022-08-12 CN CN202222131429.7U patent/CN218077293U/en active Active
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