CN113144851A - Ultraviolet photolysis deodorization device and method thereof - Google Patents
Ultraviolet photolysis deodorization device and method thereof Download PDFInfo
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- CN113144851A CN113144851A CN202110302179.6A CN202110302179A CN113144851A CN 113144851 A CN113144851 A CN 113144851A CN 202110302179 A CN202110302179 A CN 202110302179A CN 113144851 A CN113144851 A CN 113144851A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004332 deodorization Methods 0.000 title claims abstract description 30
- 238000006303 photolysis reaction Methods 0.000 title claims abstract description 29
- 230000015843 photosynthesis, light reaction Effects 0.000 title claims abstract description 29
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003513 alkali Substances 0.000 claims abstract description 33
- 230000008859 change Effects 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 44
- 239000012670 alkaline solution Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 14
- 239000010453 quartz Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 230000001877 deodorizing effect Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 10
- 238000010517 secondary reaction Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
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- 229910052760 oxygen Inorganic materials 0.000 claims description 7
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- 238000001914 filtration Methods 0.000 claims description 6
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- 238000000354 decomposition reaction Methods 0.000 abstract description 20
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- 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
- B01D53/75—Multi-step processes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
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- B01D53/007—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 irradiation
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- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
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Abstract
The invention provides an ultraviolet photolysis deodorization device and a method thereof. The device comprises a vacuum ultraviolet lamp system, a 254nm ultraviolet lamp system connected with the vacuum ultraviolet lamp system through a pipeline, and a lye pool system connected with the 254nm ultraviolet lamp system through a pipeline and used for measuring and adjusting the pH value. The invention synchronously forms an ozone generation route and an odor twice decomposition combined route in the vacuum ultraviolet lamp system, integrates the ozone generation and the odor decomposition into one system, and obviously improves the odor decomposition efficiency by utilizing the odor twice reaction combined decomposition process. Meanwhile, the mutual synergistic action between the vacuum ultraviolet lamp and the activated carbon plate is utilized, so that the contact time of pollutants in the odor is prolonged, the pollutants are thoroughly decomposed, and the regeneration adsorption cycle of the activated carbon plate is realized. And a pH on-line monitoring module is designed in the alkali liquor pool, and the opening number of the vacuum ultraviolet lamps and the 254nm ultraviolet lamps is regulated and controlled by monitoring the change rate of the pH value in real time.
Description
Technical Field
The invention relates to the technical field of odor deodorization, in particular to an ultraviolet photolysis deodorization device and an ultraviolet photolysis deodorization method.
Background
At present, the deodorization technology of sewage treatment plants mainly comprises a physical method, a chemical method and a biological method, wherein the biological method is widely used due to the advantages of high treatment efficiency, good effect, low investment and operation cost, simple operation and maintenance and the like. However, at present, biological deodorization has high requirements on environment, occupies a large area, cannot be operated intermittently, and has poor deodorization effect under the conditions of large change of water quality and water quantity, high change frequency of odor quantity, concentration and the like due to the influence of temperature on the activity of microorganisms.
The ozone oxidation method is a high-efficiency clean odor purification method, but the ozone has the technical defects of slow reaction speed and incomplete decomposition when oxidizing some organic pollutants; in addition, the accumulation of residual ozone can cause secondary pollution, and can seriously harm the environment and human health.
The invention patent with application number CN200910041218.0 discloses a device and a method for treating malodorous gas by combining ozone and ultraviolet rays. The device consists of a filter screen, an ozone generator, a powerful mixer, an ultraviolet photochemical oxidation reactor, an ozone tail gas removing device and a fan. Wherein the ultraviolet light catalytic oxidation reactor is formed by combining a plurality of ultraviolet light tubes. The malodorous gas is filtered by a filter screen to remove particles such as dust in the gas, then enters a powerful mixer to be mixed with ozone generated by an ozone generator for preliminary reaction, enters an ultraviolet catalytic oxidation reactor after being mixed, excites ozone gas to generate active oxygen under the action of ultraviolet rays, generates a series of reactions with the malodorous gas, and finally the gas is treated by an ozone-removing tail gas device.
The invention patent with the application number of CN200910119950.5 discloses a coupling catalytic oxidation deodorization method and a device thereof. The device comprises a spoiler, an ultraviolet irradiation reactor, an air pipe, a fan and a tail gas destructor; the fan is with foul gas suction device, and the spoiler is fixed in the front end of ultraviolet irradiation reactor, is equipped with the ultraviolet fluorescent tube in this reactor, is equipped with the catalysis graticule mesh between the fluorescent tube, and graticule mesh surface covers has the catalyst membrane, and the ultraviolet irradiation reactor links to each other with the tuber pipe, and the end-to-end connection tail gas destroyer of tuber pipe.
However, the above-mentioned apparatus or treatment method has disadvantages such as insufficient reaction time, low efficiency of decomposition of odor, poor adaptability to change in odor concentration, and high energy consumption.
In view of the above, there is a need for an improved uv photolysis deodorization apparatus and method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide an ultraviolet photolysis deodorization device and an ultraviolet photolysis deodorization method.
In order to achieve the purpose, the invention provides an ultraviolet photolysis deodorization device which comprises a vacuum ultraviolet lamp system, a 254nm ultraviolet lamp system connected with a vacuum ultraviolet lamp system pipeline, and an alkali liquor tank system connected with the 254nm ultraviolet lamp system pipeline and used for absorbing decomposed tail gas and measuring and adjusting the pH value;
the vacuum ultraviolet lamp system comprises a plurality of groups of vacuum ultraviolet lamps which are arranged in parallel, an activated carbon plate arranged between two adjacent vacuum ultraviolet lamps, an air inlet end, an ozone outlet end and an odor input end, wherein the air inlet end and the ozone outlet end are respectively arranged at two ends of the vacuum ultraviolet lamp system, and the odor input end is used for conveying odor and ozone premixed gas;
the odor input end is connected with an odor suction pipeline.
As a further improvement of the invention, the vacuum ultraviolet lamp system further comprises a first quartz sleeve sleeved outside each vacuum ultraviolet lamp.
As a further improvement of the invention, the vacuum ultraviolet lamp system further comprises a filter layer disposed between the vacuum ultraviolet lamp and the air inlet port for filtering the incoming air.
As a further improvement of the invention, the ozone outlet port is provided with an ozone pumping device.
As a further improvement of the invention, the 254nm ultraviolet lamp system comprises a plurality of groups of 254nm ultraviolet lamps which are arranged in parallel and a second quartz sleeve which is sleeved outside each 254nm ultraviolet lamp.
As a further improvement of the invention, the alkali liquor pool system comprises an alkali liquor pool, an online pH monitor arranged inside the alkali liquor pool, and a dosing device which is arranged outside the alkali liquor pool and is connected with a pipeline of the alkali liquor pool for supplementing alkali liquor into the alkali liquor pool.
As a further improvement of the invention, the pH on-line monitor regulates and controls the opening number of the vacuum ultraviolet lamps and the 254nm ultraviolet lamps by monitoring the change rate of the pH value in the alkali liquor pool in real time.
In order to achieve the above object, the present invention further provides an ultraviolet photolysis deodorization method, which adopts the ultraviolet photolysis deodorization device to perform deodorization, and comprises the following steps:
s1, inputting air into the vacuum ultraviolet lamp system from the air inlet end, filtering by the filter layer, and vacuumizing the filtered airOzone is generated under the irradiation of an ultraviolet lamp, and is pumped to an odor suction pipeline through an ozone outlet end by an ozone pumping device, and is fully premixed with the odor, so that macromolecular organic matters in the odor are decomposed into micromolecular substances, and mixed gas after primary reaction is obtained; then, the mixed gas after the primary reaction enters a vacuum ultraviolet lamp system through the odor input end to be respectively contacted with the vacuum ultraviolet lamp and the active carbon plate, and the decomposed small molecular substances are further decomposed into SO after being irradiated by the vacuum ultraviolet lamp2、CO2And (3) waiting for small molecular substances to obtain mixed gas after secondary reaction;
s2, conveying the mixed gas after the secondary reaction into the 254nm ultraviolet lamp system through a pipeline for sterilization and disinfection; meanwhile, the excessive ozone is decomposed under the irradiation of the 254nm ultraviolet lamp to form oxygen and excited oxygen atoms, and the oxygen and the excited oxygen atoms are combined with the 254nm ultraviolet lamp to further enhance the sterilization effect and decompose part of organic pollutants in the mixed gas after the secondary reaction;
s3, conveying the sterilized and decomposed mixed gas to the alkaline solution pool through a pipeline, performing alkaline washing treatment, and removing SO in the mixed gas2And CO2Waiting for small molecular substances, and then discharging after reaching the standard; and the pH value in the alkali liquor pool is monitored and adjusted in real time through the pH on-line monitor and the dosing device.
As a further improvement of the present invention, the process of monitoring and adjusting the pH value in the lye tank in real time is as follows:
the pH on-line monitor monitors the change of the pH value in the alkaline liquid pool in real time, and when the pH value of the alkaline liquid pool is reduced to a preset value, a preset amount of alkaline liquid is supplemented into the alkaline liquid pool through the dosing device and used for adjusting the pH value in the alkaline liquid pool to a normal set range.
As a further improvement of the present invention, the pH on-line monitor regulates and controls the number of the vacuum ultraviolet lamps and the 254nm ultraviolet lamps by monitoring the change rate of the pH value in the alkaline solution pool in real time, and the regulation and control method comprises the following steps: and when the change rate of the pH value is higher than a first set value, the opening number of the vacuum ultraviolet lamps and the 254nm ultraviolet lamps is increased, and when the change rate of the pH value is lower than a second set value, the opening number of the vacuum ultraviolet lamps and the 254nm ultraviolet lamps is properly closed, so that the energy consumption of equipment is reduced.
The invention has the beneficial effects that:
1. the ultraviolet photolysis deodorization method provided by the invention utilizes the characteristic that a vacuum ultraviolet lamp is contacted with air to generate ozone, the ozone is pumped to an odor transmission pipeline, the odor is pre-oxidized for the first time, organic macromolecules in the odor are decomposed into micromolecular substances, the further decomposition treatment at the rear end is facilitated, then, mixed gas after the primary reaction is conveyed to a vacuum ultraviolet lamp system for the secondary reaction, and the decomposition efficiency of the odor can be obviously improved by the process of the two-time reaction combined decomposition. Simultaneously, through set up the activated carbon plate in the vacuum ultraviolet lamp house, utilize the characteristic of the pollutant in the adsorbable gas of activated carbon plate, improved the contact time of the pollutant in vacuum ultraviolet and the foul smell, guaranteed the decomposition effect of pollutant, in addition, under the effect of ultraviolet illumination and ozone, adsorbed pollutant is decomposed gradually on the activated carbon plate, from this, the activated carbon plate obtains the regeneration, has increased the life of activated carbon plate. Namely, the mutual synergistic action between the vacuum ultraviolet lamp and the activated carbon plate is utilized, the contact time of pollutants in the odor is prolonged, the pollutants are thoroughly decomposed, and meanwhile, the regeneration adsorption circulation of the activated carbon plate is realized, so that the decomposition efficiency of the odor and the cyclic utilization of the system are obviously improved.
2. According to the ultraviolet photolysis deodorization device, the pH on-line monitoring module is designed in the alkali liquor pool, the opening number of the vacuum ultraviolet lamps and the opening number of the 254nm ultraviolet lamps are controlled by monitoring the change rate of the pH value in real time, so that the energy consumption of the two groups of ultraviolet lamps is reduced and the service life of the ultraviolet lamps is prolonged on the premise of ensuring the odor removal effect; meanwhile, the amount of ozone generated is also controlled by regulating the number of the ultraviolet lamps, so that the pollution of excessive ozone to the surrounding environment is avoided.
3. The ultraviolet photolysis deodorization device provided by the invention has the advantages that the three gas input/output ends, namely the air inlet end, the ozone outlet end and the odor input end, are arranged in the vacuum ultraviolet lamp system, the ozone generation route and the odor twice decomposition combined route are synchronously formed, the ozone generation and the odor decomposition are integrated in one system, the design is exquisite and reasonable, and the equipment construction cost is low. The vacuum ultraviolet lamp system fully utilizes the characteristics of the vacuum ultraviolet lamp, and obviously improves the decomposition efficiency of odor after two combined decomposition processes.
Drawings
Fig. 1 is a schematic structural view of an ultraviolet photolysis deodorization apparatus according to the present invention.
Reference numerals
10-vacuum ultraviolet lamp system; 11-vacuum ultraviolet lamp; 12-a first quartz sleeve; 13-an activated carbon plate; 14-an air inlet end; 15-an ozone outlet port; 16-odor input end; 17-a filter layer; 18-an ozone pumping device; a 20-254nm ultraviolet lamp system; 21-254nm ultraviolet lamp; 22-a second quartz sleeve; 30-alkali lye pool system; 31-an alkaline solution pool; 32-pH on-line monitor; 33-a dosing device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, the present invention provides an ultraviolet photolysis deodorization apparatus, which includes a vacuum ultraviolet lamp system 10, a 254nm ultraviolet lamp system 20 connected to the vacuum ultraviolet lamp system 10 through a pipeline, and an alkali lye system 30 connected to the 254nm ultraviolet lamp system 20 through a pipeline and used for absorbing decomposed exhaust gas.
The vacuum ultraviolet lamp system 10 comprises a plurality of groups of vacuum ultraviolet lamps 11 which are arranged in parallel, a first quartz sleeve 12 which is sleeved on each vacuum ultraviolet lamp 11, an activated carbon plate 13 which is arranged between two adjacent vacuum ultraviolet lamps 11, air inlet ends 14 and ozone outlet ends 15 which are respectively arranged at two ends of the vacuum ultraviolet lamp system 10, an odor input end 16 which is used for conveying odor and ozone premixed gas, a filter layer 17 which is arranged between the vacuum ultraviolet lamps 11 and the air inlet ends 14 and is used for filtering the input air, and an ozone pumping device 18 which is arranged at the ozone outlet end 15. The odor input 16 is connected to an odor suction conduit for delivering odor to the ultraviolet light deodorizing device.
The 254nm ultraviolet lamp system 20 comprises a plurality of groups of 254nm ultraviolet lamps 21 which are arranged in parallel and a second quartz sleeve 22 sleeved outside each 254nm ultraviolet lamp 21.
The alkali lye tank system 30 comprises an alkali lye tank 31, a pH on-line monitor 32 arranged inside the alkali lye tank 31 and a dosing device 33 arranged outside the alkali lye tank 31 and connected with a pipeline thereof for supplementing alkali liquid into the alkali lye tank 31.
Specifically, all the ultraviolet lamps are arranged in the quartz sleeve, and the air enters the first quartz sleeve 12 after being filtered to contact with the vacuum ultraviolet lamp 11, so that the influence of the particle substances in the air on the first quartz sleeve 12 or the vacuum ultraviolet lamp 12 on the efficiency of the vacuum ultraviolet lamp 11 is avoided. Meanwhile, the particle substances in the mixed gas can be prevented from being attached to the second quartz sleeve 22 or the 254nm ultraviolet lamp 21, and the efficiency of the 254nm ultraviolet lamp 21 is prevented from being influenced.
Example 1
The embodiment 1 of the invention provides an ultraviolet photolysis deodorization method, which adopts the ultraviolet photolysis deodorization device to perform deodorization and comprises the following steps:
s1, inputting air into the vacuum ultraviolet lamp system 10 from the air inlet 14, filtering by the filter layer 17, and generating the filtered air under the irradiation of the vacuum ultraviolet lamp 11Generating ozone, pumping the ozone to an odor suction pipeline through an ozone outlet end 15 and an ozone pumping device 18, fully premixing the ozone and the odor, and decomposing macromolecular organic matters in the odor into micromolecular substances to obtain mixed gas after primary reaction; then, the mixed gas after the primary reaction enters a vacuum ultraviolet lamp system 10 through the odor input end 16 to be respectively contacted with the vacuum ultraviolet lamp 11 and the activated carbon plate 13, and the decomposed small molecular substances are further decomposed into SO after being irradiated by the vacuum ultraviolet lamp 112、CO2And (3) waiting for small molecular substances to obtain mixed gas after secondary reaction; meanwhile, the activated carbon plate 13 in the lamp box can absorb partial pollutants, so that the contact time of the pollutants and the vacuum ultraviolet lamp 11 is prolonged, and the decomposition is more thorough.
S2, conveying the mixed gas after the secondary reaction into the 254nm ultraviolet lamp system 20 through a pipeline for sterilization; meanwhile, the excessive ozone is decomposed under the irradiation of the 254nm ultraviolet lamp 21 to form oxygen and excited oxygen atoms, and the oxygen and the excited oxygen atoms are combined with the 254nm ultraviolet lamp 21 to further enhance the sterilization effect and decompose part of organic pollutants in the mixed gas after the secondary reaction;
s3, conveying the sterilized and decomposed mixed gas to the alkaline solution tank 31 through a pipeline, performing alkaline washing treatment, and removing SO in the mixed gas2And CO2Waiting for small molecular substances, and then discharging after reaching the standard; and the pH value in the alkaline solution pool 31 is monitored and adjusted in real time through the pH on-line monitor 32 and the dosing device 33, and the specific process is as follows:
the pH on-line monitor 32 monitors the change of the pH value in the alkaline solution tank 31 in real time, and when the pH value of the alkaline solution tank 30 is reduced to a predetermined set value, a predetermined amount of alkaline liquid is supplemented into the alkaline solution tank through the dosing device 33, so as to adjust the pH value in the alkaline solution tank 31 to a normal set range.
Meanwhile, the online pH monitor 32 monitors the rate of change of the pH value in the alkaline solution tank 31 in real time to regulate the number of the vacuum ultraviolet lamps 11 and the 254nm ultraviolet lamps 21, and the regulating method is as follows: when the change rate of the pH value is higher than a first set value, the opening number of the vacuum ultraviolet lamps 11 and the 254nm ultraviolet lamps 21 is increased, and when the change rate of the pH value is lower than a second set value, the opening number of the vacuum ultraviolet lamps 11 and the 254nm ultraviolet lamps 21 is properly closed, so that the energy consumption of equipment is reduced.
In example 1, the average UV irradiance 1824 μ W-cm based on the vacuum UV lamp system 10-2Average UV irradiance of 1260 uW cm for 254nm UV lamp system 20-2And initial H2S concentration is about 100 mg.m-3Initial NH3At a concentration of about 0.4mg m-3When the gas flow rate v is 1.2m · s-1When H is present2The removal efficiency of S can reach 61.2 percent, NH3The removal efficiency of (a) can reach 81.0%. Maintaining the gas flow rate constant, starting with H2The S concentration is reduced to about 40 mg-m-3Initial NH3The concentration is reduced to about 0.2 mg-m-3In the case of (1), the system automatically turns off 30% of the UV lamps, H2The removal efficiency of S can reach 78.4 percent, NH3The removal efficiency can reach 92.4 percent, and the energy consumption of the system is reduced on the premise of ensuring the treatment efficiency.
In summary, the present invention provides an ultraviolet photolysis deodorization apparatus and a method thereof. The device comprises a vacuum ultraviolet lamp system, a 254nm ultraviolet lamp system connected with the vacuum ultraviolet lamp system through a pipeline, and a lye pool system connected with the 254nm ultraviolet lamp system through a pipeline and used for measuring and adjusting the pH value. The invention synchronously forms an ozone generation route and an odor twice decomposition combined route in the vacuum ultraviolet lamp system, integrates the ozone generation and the odor decomposition into one system, and obviously improves the odor decomposition efficiency by utilizing the odor twice reaction combined decomposition process. Meanwhile, the mutual synergistic action between the vacuum ultraviolet lamp and the activated carbon plate is utilized, so that the contact time of pollutants in the odor is prolonged, the pollutants are thoroughly decomposed, and the regeneration adsorption cycle of the activated carbon plate is realized. The pH on-line monitoring module is designed in the alkali liquor pool, and the opening number of the vacuum ultraviolet lamps and the 254nm ultraviolet lamps is regulated and controlled by monitoring the change rate of the pH value in real time, so that the energy consumption is reduced and the service life of the ultraviolet lamps is prolonged on the premise of ensuring the odor removal effect; meanwhile, the amount of ozone generated is also controlled, and the pollution of the generated excessive ozone to the surrounding environment is avoided.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides an ultraviolet photolysis deodorizing device which characterized in that: the ultraviolet photolysis deodorization device comprises a vacuum ultraviolet lamp system (10), a 254nm ultraviolet lamp system (20) connected with the vacuum ultraviolet lamp system (10) through a pipeline, and an alkali liquor pool system (30) connected with the 254nm ultraviolet lamp system (20) through a pipeline and used for absorbing decomposed tail gas;
the vacuum ultraviolet lamp system (10) comprises a plurality of groups of vacuum ultraviolet lamps (11) which are arranged in parallel, an activated carbon plate (13) arranged between two adjacent vacuum ultraviolet lamps (11), air inlet ends (14) and ozone outlet ends (15) which are respectively arranged at two ends of the vacuum ultraviolet lamp system (10), and an odor input end (16) for conveying odor and ozone premixed gas;
the odor input end (16) is connected with an odor suction pipeline.
2. The uv photolysis deodorizing apparatus according to claim 1, wherein: the vacuum ultraviolet lamp system (10) further comprises a first quartz sleeve (12) sleeved outside each vacuum ultraviolet lamp (11).
3. The uv photolysis deodorizing apparatus according to claim 1, wherein: the vacuum ultraviolet lamp system (10) further comprises a filter layer (17) arranged between the vacuum ultraviolet lamp (11) and the air inlet port (14) and used for filtering input air.
4. The uv photolysis deodorizing apparatus according to claim 1, wherein: the ozone outlet end (15) is provided with an ozone pumping device (18).
5. The uv photolysis deodorizing apparatus according to claim 1, wherein: the 254nm ultraviolet lamp system (20) comprises a plurality of groups of 254nm ultraviolet lamps (21) which are arranged in parallel and a second quartz sleeve (22) sleeved outside each 254nm ultraviolet lamp (21).
6. The ultraviolet photolysis deodorizing device according to claim 5, wherein: the alkali lye tank system (30) comprises an alkali lye tank (31), a pH on-line monitor (32) arranged in the alkali lye tank (31) and a dosing device (33) arranged outside the alkali lye tank (31) and connected with a pipeline of the alkali lye tank for supplementing alkali liquor to the alkali lye tank (31).
7. The ultraviolet photolysis deodorizing device according to claim 6, wherein: the pH on-line monitor (32) regulates and controls the opening number of the vacuum ultraviolet lamps (11) and the 254nm ultraviolet lamps (21) by monitoring the change rate of the pH value in the alkali liquor pool (31) in real time.
8. An ultraviolet photolysis deodorization method is characterized in that: the deodorization using the ultraviolet photolysis deodorization device as set forth in any one of claims 1 to 7, comprising the steps of:
s1, inputting air into the vacuum ultraviolet lamp system (10) from an air inlet end (14), filtering by a filter layer (17), generating ozone by the filtered air under the irradiation of the vacuum ultraviolet lamp (11), pumping the ozone to an odor suction pipeline through an ozone outlet end (15) by an ozone pumping device (18), fully premixing the ozone with odor, decomposing macromolecular organic matters in the odor into micromolecular substances, and obtaining mixed gas after primary reaction; then, the mixed gas after the primary reaction enters a vacuum ultraviolet lamp system (10) through the odor input end (16) to be respectively contacted with the vacuum ultraviolet lamp (11) and the active carbon plate (13), and the decomposed small molecular substances are further decomposed into SO after being irradiated by the vacuum ultraviolet lamp (11)2、CO2To obtain mixed gas after secondary reaction;
s2, delivering the mixed gas after the secondary reaction into the 254nm ultraviolet lamp system (20) through a pipeline for sterilization; meanwhile, the excessive ozone is decomposed under the irradiation of the 254nm ultraviolet lamp (21) to form oxygen and excited oxygen atoms, and the oxygen and the excited oxygen atoms are combined with the 254nm ultraviolet lamp (21) to further enhance the sterilization effect and decompose part of organic pollutants in the mixed gas after the secondary reaction;
s3, conveying the sterilized and decomposed mixed gas to the alkaline solution pool (31) through a pipeline, and removing SO in the mixed gas after alkaline washing treatment2And CO2Then the waste gas is discharged after reaching the standard; and the pH value in the alkali liquor pool (31) is monitored and adjusted in real time through the pH on-line monitor (32) and the dosing device (33).
9. The photolytic ultraviolet deodorizing method according to claim 8, wherein: the process of monitoring and adjusting the pH value in the alkali liquor pool (31) in real time is as follows:
the pH on-line monitor (32) monitors the change of the pH value in the alkaline solution pool (31) in real time, and when the pH value of the alkaline solution pool (30) is reduced to a preset value, a preset amount of alkaline liquid is supplemented into the alkaline solution pool through the dosing device (33) and used for adjusting the pH value in the alkaline solution pool (31) to a normal set range.
10. The photolytic ultraviolet deodorizing method according to claim 8, wherein: the pH on-line monitor (32) regulates and controls the opening number of the vacuum ultraviolet lamps (11) and the 254nm ultraviolet lamps (21) by monitoring the change rate of the pH value in the alkali liquor pool (31) in real time, and the regulating and controlling method comprises the following steps: when the change rate of the pH value is higher than a first set value, the opening number of the vacuum ultraviolet lamps (11) and the 254nm ultraviolet lamps (21) is increased, and when the change rate of the pH value is lower than a second set value, the opening number of the vacuum ultraviolet lamps (11) and the 254nm ultraviolet lamps (21) is properly closed, so that the energy consumption of the equipment is reduced.
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