CN217855434U - High-efficient chemical deodorization device - Google Patents
High-efficient chemical deodorization device Download PDFInfo
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- CN217855434U CN217855434U CN202123116226.2U CN202123116226U CN217855434U CN 217855434 U CN217855434 U CN 217855434U CN 202123116226 U CN202123116226 U CN 202123116226U CN 217855434 U CN217855434 U CN 217855434U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a high-efficient chemical deodorizing device, include: the absorption liquid storage tank, the air inlet of absorption liquid storage tank is connected with the reaction tube, the gas outlet of absorption liquid storage tank is connected with the defroster, the spray tube, the lower extreme and the reaction union coupling of spray tube, the upper end and the outside fan of spray tube are connected, circulation mechanism's extraction end is connected with the liquid outlet of absorption liquid storage tank, circulation mechanism's discharge end and spray tube are connected, this high-efficient chemical deodorization device is through adopting gas-liquid syntropy fluidization science technique, the device handling capacity is big, the pressure drop is little, the general phenomenon of no liquid takes place, can show reduction tower footpath and tower height, the investment cost of reduction device.
Description
Technical Field
The utility model belongs to the technical field of chemical deodorization, more specifically relates to a high-efficient chemical deodorization device.
Background
The chemical deodorization technology is a process for absorbing and removing gaseous pollutants in malodorous gas by using a chemical absorption solution. The absorption process can be classified into two types, cocurrent (cocurrent) absorption and countercurrent (countercurrent) absorption, according to the gas-liquid contact form. At present, the countercurrent absorption is the mainstream technology of the chemical deodorization technology, and although the countercurrent absorption has the advantage of high absorption rate, the countercurrent absorption also has the defects of low mass transfer and reaction efficiency, easy generation of flooding, high pressure loss and the like due to the small contact interfacial area between gas and liquid.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-efficient chemical deodorization device to exist not enough among the prior art, this high-efficient chemical deodorization device is through adopting gas-liquid syntropy fluidization chemical technology, and the device handling capacity is big, the pressure drop is little, do not have the general phenomenon of liquid to take place, can show reduction tower footpath and tower height, the investment cost of reduction device.
In order to achieve the above object, the present invention provides a high-efficiency chemical deodorizing device, comprising:
the absorption liquid storage tank is connected with a reaction pipe at an air inlet, and is connected with a demister at an air outlet;
the lower end of the liquid spraying pipe is connected with the reaction pipe, and the upper end of the liquid spraying pipe is connected with an external fan;
and the extraction end of the circulating mechanism is connected with the liquid outlet of the absorption liquid storage tank, and the discharge end of the circulating mechanism is connected with the liquid spraying pipe.
Optionally, a plurality of screens are arranged in the reaction tube, and the plurality of screens are stacked in the reaction tube.
Optionally, a support ring is arranged between adjacent screens.
Optionally, the absorption liquid storage tank is provided with a dosing port, an observation port, a storage tank emptying port and a storage tank overflow port.
Optionally, a liquid spraying pipe external connector and a spare liquid spraying pipe external connector are arranged on the liquid spraying pipe, and the discharge end of the circulation mechanism is connected with the liquid spraying pipe external connector.
Optionally, a nozzle is arranged inside the liquid spraying pipe, and the nozzle is connected with the liquid spraying pipe external interface.
Optionally, the circulation mechanism is a circulation pump, and the screen mesh opening ratio of the screen mesh is 92-96%.
Optionally, a drain pipe of the demister is connected to the absorption liquid storage tank.
The utility model provides a high-efficient chemical deodorizing device, its beneficial effect lies in:
1. the efficient chemical deodorization device adopts the gas-liquid cocurrent fluidization chemical technology, has large device treatment capacity, small pressure drop and no liquid flooding phenomenon, can obviously reduce the tower diameter and the tower height, and reduces the investment cost of the device.
2. This high-efficient chemical deodorization device has increased the gas-liquid reaction contact surface through the combination of tiny liquid drop nozzle and multilayer three-dimensional screen cloth, has the advantage that gas-liquid mass transfer is efficient and deodorization effect is good. In addition, the three-dimensional screen formed by the multiple layers of screens is also beneficial to the absorption liquid drops falling into the storage tank after the particle size of the absorption liquid drops is gradually increased, so that the recovery rate of the absorption liquid is improved, the loss of the absorption liquid is reduced, and the three-dimensional screen has the advantage of low treatment cost.
3. The efficient chemical deodorization device has the advantages of good deodorization effect, low investment and treatment cost, simple structure, easy operation and the like, and has better economic and application values.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.
Fig. 1 shows a schematic structural view of a high efficiency chemical deodorizing device according to an embodiment of the present invention.
Fig. 2 shows a schematic structural view of a high efficiency chemical deodorizing device according to an embodiment of the present invention.
Fig. 3 shows a schematic structural view of a high efficiency chemical deodorizing device according to an embodiment of the present invention.
Description of reference numerals:
1. a liquid spraying pipe; 2. an external port of the liquid spraying pipe; 2', an external port of a spare liquid spraying pipe; 3. a circulating mechanism; 4. a reaction tube; 5. an absorption liquid storage tank; 6. a medicine adding port; 7. a viewing port; 8. a liquid outlet; 9. emptying the storage tank; 10. an overflow port of the storage tank; 11. an air outlet; 12. a demister; 13. a nozzle; 14. a three-dimensional screen; 15. and (3) supporting the ring.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
FIG. 1 shows a schematic structural view of a high efficiency chemical deodorizing device according to one embodiment of the present invention; FIG. 2 shows a schematic structural view of a high efficiency chemical deodorizing device according to an embodiment of the present invention; fig. 3 shows a schematic structural view of a high efficiency chemical deodorizing device according to an embodiment of the present invention.
As shown in fig. 1 to 3, a high efficiency chemical deodorizing device comprises:
an absorption liquid storage tank 5, wherein an air inlet of the absorption liquid storage tank 5 is connected with a reaction pipe 4, and an air outlet 11 of the absorption liquid storage tank 5 is connected with a demister 12;
the lower end of the liquid spraying pipe 1 is connected with the reaction pipe 4, and the upper end of the liquid spraying pipe 1 is connected with an external fan;
and the extraction end of the circulating mechanism 3 is connected with the liquid outlet 8 of the absorption liquid storage tank 5, and the discharge end of the circulating mechanism 3 is connected with the liquid spraying pipe 1.
Specifically, absorb the foul smell through outside fan, spray the absorption liquid in the absorption liquid storage tank 5 through the circulation of circulation mechanism 3 circulation, make the absorption liquid contact reaction with the foul smell in reaction tube 4, the aerial fog after the purification reaction is discharged after demister 12 filters the absorption liquid, make the gas-liquid cocurrent, the pressure drop is littleer when absorbing, the gas velocity, liquid flow can be bigger, eliminate to have the flooding phenomenon, reach deodorant effect good, gas-liquid mass transfer efficiency is high, the pressure drop is little, the tower footpath is little, highly low and structure and easy operation's effect.
Further, the effective volume of the absorption liquid storage tank 5 is 50-80% of the total volume, the effective volume at least meets the 3 min rated flow volume of the circulating mechanism, the demister 12 comprises a folded plate type and a packing ring, and the empty tower speed range is 1-4m/s.
In this embodiment, a plurality of screens 14 are provided in the reaction tube 4, and the plurality of screens 14 are stacked in the reaction tube 4.
Specifically, the screen 14 is composed of 1-4 layers of plane screens, the meshes are square, the side length is 0.5-5mm, the opening rate of the screens is 92-96%, and the screens 14 are stacked to form a three-dimensional screen, so that the gas-liquid reaction contact surface is enlarged, and the gas-liquid mass transfer efficiency and the deodorization effect are improved.
In this embodiment, a support ring 15 is provided between adjacent screens.
Specifically, the screen 14 is spaced by a support ring 15 to ensure the shape and structure of the three-dimensional screen, and the size of the support ring 15 is 5-30cm.
In this embodiment, the absorption liquid storage tank 5 is provided with a chemical feeding port 6, an observation port 7, a storage tank emptying port 9 and a storage tank overflow port 10.
In this embodiment, the liquid ejecting tube 1 is provided with a liquid ejecting tube external port 2 and a spare liquid ejecting tube external port 2', and the discharge end of the circulation mechanism 3 is connected to the liquid ejecting tube external port 2.
Specifically, the outer connectors 2 of the liquid spraying pipes with different heights are arranged to meet the requirements of different parameters.
In the present embodiment, the spray tube 1 is provided with a nozzle 13 inside, and the nozzle 13 is connected to the spray tube external port 2.
Specifically, the nozzle 13 is arranged on the axis of the liquid spraying pipe and is positioned above the screen 14, the opening direction faces the screen 14, the heights of the liquid spraying pipe 1 and the reaction pipe 4 are both 0.5-1m, the flow velocity of malodorous gas in the two pipelines is 8-16m/s, and the nozzle 13 is a micro-droplet nozzle and is matched with the screen 14 to improve the gas-liquid contact surface.
Further, the median droplet volume diameter VMD of the nozzles 13 is less than 500 μm, 1000Nm per treatment 3 The amount of malodorous gas required for circulating spraying liquid is 3-6m 3 。
In this embodiment, the circulation mechanism is a circulation pump, and the screen has a screen opening ratio of 92 to 96%.
In the present embodiment, the drain pipe of the demister 12 is connected to the absorbing liquid tank 5.
Particularly, the recycling is realized, and the utilization rate is improved.
A high-efficiency chemical deodorization method, which utilizes the high-efficiency chemical deodorization device, comprises:
a medicament is arranged in the absorption liquid storage tank;
starting an external fan to enable the treated gas to enter an absorption liquid storage tank through a liquid spraying pipe and a reaction pipe;
and starting the circulating mechanism to circulate the medicament in the absorption liquid storage tank between the liquid outlet and the liquid spraying pipe.
Specifically, the medicament is prepared, so that the medicament in the absorption liquid storage tank at least meets the rated flow volume passing through the circulation mechanism 3 within the minimum working time, and idle burning is avoided;
adjusting the duty ratio of the circulating mechanism 3 and an external fan to ensure that the replacement rate is not lower than 50 percent;
and adjusting the air flow rate of the demister to ensure that the recovery rate of the liquefied medicament is more than 90 percent.
The minimum dosage of the circulating agent is kept, the circulation cost is met, the flow of the liquid medicine and the odor is changed by adjusting the circulating mechanism 3 and an external fan, and the reaction time of the liquid medicine and the odor is further changed.
In this embodiment, the method further includes: deodorizing the gas to be treated by a plurality of high-efficiency chemical deodorizing devices;
the spray pipes of the high-efficiency chemical deodorization devices are connected with an external fan, or the spray pipes of the preorder high-efficiency chemical deodorization devices are connected with the external fan, and the spray pipes of the subsequent high-efficiency chemical deodorization devices are connected with the demister of the preorder high-efficiency chemical deodorization devices.
Specifically, the high-efficiency chemical deodorization devices are connected in series or in parallel, and the treatment capacity is improved through the series connection or the parallel connection.
When the high-efficiency chemical deodorization equipment is used, taking the treatment of odor as an example,
1 device design and implementation
According to application requirements, the high-efficiency chemical deodorization device can be used in a single stage, series connection or parallel connection mode. When the series connection is used, a 2-4-level series connection mode is selected according to the treatment gas quantity and the concentration of the malodorous gas. The device is designed according to the technical scheme, and the device is processed, installed and debugged.
2 preparation of absorption liquid
After the work in the step 1 is finished, the preparation of the absorption liquid is needed firstly, and the method can refer to a reverse flow chemical deodorization related method. When ammonia and organic ammonia compounds are removed, a sulfuric acid aqueous solution is adopted, and the corresponding pH value range is 2-4. For removing hydrogen sulfide and organic malodorous pollutants, an aqueous sodium hypochlorite solution is used alone or in combination with an aqueous sodium hydroxide solution. The concentration of the sodium hypochlorite aqueous solution (calculated by chlorine) is 0.5-1g/L, and when the sodium hypochlorite aqueous solution is combined with the sodium hydroxide aqueous solution, the pH value ranges from 9 to 10.
And in the running process of the equipment, the supplement of the chemical agent is controlled according to the online instrument.
3 operation of the plant
After the concentration prepared in the step 2 is satisfied, and the rated flow volume of the circulating mechanism is at least satisfied for 5min, the circulating mechanism is started and the malodorous gas is generatedThe air supply fan meets the requirements that the flow velocity in a malodorous gas liquid spraying pipe and a reaction pipe is 8-16m/s and 1000 Nm/treatment 3 The range of the circulating spray liquid amount of the malodorous gas is 3-6m 3 . The absorption liquid in the absorption liquid storage tank needs to be replaced regularly according to actual conditions.
When the sulfuric acid aqueous solution is used for removing ammonia and organic amine substances, the ammonium sulfate is more than 50g/L;
when the sodium hypochlorite or the sodium hydroxide is used together, the sulfate is more than 15g/L;
the substitution rate is at least 50%.
4 recovery of the absorption liquid
The treated malodorous gas carries part of absorption liquid, and a demister is needed to recover the absorption liquid. The flow rate control range of the hollow tower of the demister is 1-4m/s, and the recovery rate needs to be more than 90%.
5 device shutdown
When the device needs to stop running, the circulating water pump is turned off and air supply is stopped. If the device is stopped for a long time and then operates, the absorption liquid needs to be analyzed to determine whether the technical requirements can be met.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (8)
1. A high efficiency chemical deodorizing device characterized by comprising:
the absorption liquid storage tank is connected with a reaction pipe at an air inlet, and is connected with a demister at an air outlet;
the lower end of the liquid spraying pipe is connected with the reaction pipe, and the upper end of the liquid spraying pipe is connected with an external fan;
and the extraction end of the circulating mechanism is connected with the liquid outlet of the absorption liquid storage tank, and the discharge end of the circulating mechanism is connected with the liquid spraying pipe.
2. A high efficiency chemical deodorizing device according to claim 1, wherein a plurality of said screens are provided in said reaction tube, and said plurality of said screens are stacked in said reaction tube.
3. A high efficiency chemical deodorizing means according to claim 2 wherein a support ring is provided between adjacent ones of said screens.
4. The device of claim 1, wherein the absorption liquid tank is provided with a chemical feeding port, an observation port, a tank emptying port and a tank overflow port.
5. A high efficiency chemical deodorizing means according to claim 1, wherein said liquid ejecting pipe is provided with an external liquid ejecting pipe port and an external spare liquid ejecting pipe port, and said discharge end of said circulating means is connected to said external liquid ejecting pipe port.
6. A high efficiency chemical deodorization apparatus as claimed in claim 5, wherein a nozzle is provided inside the liquid spraying tube, and the nozzle is connected to the external connection port of the liquid spraying tube.
7. A high efficiency chemical deodorizing means according to claim 2 wherein said circulating means is a circulating pump, and said screen has a screen opening ratio of 92-96%.
8. A high efficiency chemical deodorizing device according to claim 1, wherein a drain pipe of said demister is connected to said absorbing liquid tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123116226.2U CN217855434U (en) | 2021-12-07 | 2021-12-07 | High-efficient chemical deodorization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123116226.2U CN217855434U (en) | 2021-12-07 | 2021-12-07 | High-efficient chemical deodorization device |
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| CN217855434U true CN217855434U (en) | 2022-11-22 |
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| CN202123116226.2U Active CN217855434U (en) | 2021-12-07 | 2021-12-07 | High-efficient chemical deodorization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996168A (en) * | 2021-12-07 | 2022-02-01 | 北京北排装备产业有限公司 | Efficient chemical deodorization device and method |
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- 2021-12-07 CN CN202123116226.2U patent/CN217855434U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996168A (en) * | 2021-12-07 | 2022-02-01 | 北京北排装备产业有限公司 | Efficient chemical deodorization device and method |
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