CN107219324A - The adjustable ozone purification evaluation system of a kind of humidity, content and evaluation method - Google Patents
The adjustable ozone purification evaluation system of a kind of humidity, content and evaluation method Download PDFInfo
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- CN107219324A CN107219324A CN201710569352.2A CN201710569352A CN107219324A CN 107219324 A CN107219324 A CN 107219324A CN 201710569352 A CN201710569352 A CN 201710569352A CN 107219324 A CN107219324 A CN 107219324A
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Abstract
The invention provides a kind of humidity, the adjustable ozone purification evaluation system of content and evaluation method.The ozone purification evaluation system of the present invention includes ozone generating-device, steam generating means, gas mixer, ozone purification reaction unit, ozone-detecting element, gas mixer is arranged between ozone generating-device and ozone purification reaction unit, ozone purification reaction unit is arranged between gas mixer and ozone-detecting element, and ozone generating-device, the gas outlet of steam generating means are connected with the air inlet of gas mixer respectively;Gas drier is provided between ozone purification reaction unit and ozone-detecting element.The ozone purification evaluation system of the present invention, humidity, the content of ozone atmosphere are adjustable, and detection and analysis in the case of high humility without interference with ozone, ozone purification is set to evaluate more precise and high efficiency, the service life of detection means is extended, POLLUTION SIMULATION and the ozone generation field of ozone is can be widely applied to.
Description
Technical field
The invention belongs to atmosphere pollution purification techniques field, it is related to the adjustable ozone purification evaluation system of a kind of humidity, content
System and evaluation method.
Background technology
Ozone (O3) and oxygen (O2) be oxygen element allotrope, have double-edged sword for environment for the survival of mankind
Effect.In air stratosphere, ozone is good to our living environment, and it can keep out harmful ultraviolet;So
And near surface, ozone is an invisible killer, skin and nervous system of human body etc. can be produced in various degree
Influence, additionally it is possible to insulting immunity function, causes lymphocyte to occur chromosome lesion, accelerates the aging of human body, causes
The birth rate increase of deformed child.The World Health Organization provide, continuously work 8 hours environment in ozone concentration no more than
0.1ppm.At present, all there is ozone pollution in indoor furniture, office space, large-scale public place of entertainment etc., and exploitation practical function is excellent
Good ozone removes equipment and possesses preferable market prospects.
The method of processing ozone mainly has at present:Heat treating process, active carbon adsorption, electromagenetic wave radiation decomposition method, decoction
Absorption process and catalysis method, wherein catalytic decomposition are one of ideal methods of current elimination ozone.Catalyst development is one
Individual very active research field, but to require that system equipment has excellent for the stable modulation of ozone proportioning and different humidity etc.
Controllability.But, ozone generation is unstable in traditional smoking purification in the prior art, and the humidity of ozone is high, and ozone is examined
Measuring tape is greatly disturbed.
The content of the invention
In view of the shortcomings of the prior art, an object of the present invention is to provide the adjustable ozone of a kind of humidity, content net
Change evaluation system, humidity, the content of ozone atmosphere are adjustable, and detection in the case of high humility without interference with ozone and point
Analysis, makes ozone purification evaluate more precise and high efficiency, extends the service life of detection means.
For up to this purpose, the present invention uses following technical scheme:
The adjustable ozone purification evaluation system of a kind of humidity, content, including ozone generating-device, steam generating means, gas
Body mixing arrangement, ozone purification reaction unit, ozone-detecting element, the gas mixer are arranged at the ozone and filled
Put between the ozone purification reaction unit, the ozone purification reaction unit be arranged at the gas mixer with it is described
Between ozone-detecting element, the ozone generating-device, the steam generating means gas outlet respectively with the gas mixing
The air inlet of device is connected;Gas is provided between the ozone purification reaction unit and the ozone-detecting element and dries dress
Put.
The ozone generating-device includes O2Gas circuit, quartzy spiral coil, discharge light with low pressure gas and smelly for measuring
The flowmeter of oxygen growing amount, the flowmeter is arranged between the quartzy spiral coil and the gas mixer, O2It is logical
Cross the O2Gas circuit is passed through the quartzy spiral coil, and the quartzy spiral coil is wrapped up by the discharge light with low pressure gas.
The caliber of the quartzy spiral coil be 3~6mm, for example caliber be 3mm, 3.5mm, 4mm, 4.5mm, 5mm,
5.5mm、6mm;The length of the quartzy spiral coil be 10~40cm, for example length be 10cm, 15cm, 20cm, 25cm,
30cm、35cm、40cm;A diameter of 50~100mm of the cross section of the quartzy spiral coil, such as cross section it is a diameter of
50mm、60mm、70mm、80mm、90mm、100mm。
The steam generating means include N2Gas circuit, stripping wash bottle bubbler and the flow for measuring steam growing amount
Meter, the flowmeter is arranged between the stripping wash bottle bubbler and the gas mixer, N2Pass through the N2Gas circuit is led to
Enter the stripping wash bottle bubbler.
Drier in the gas drier is calcium chloride granules, discoloration silica gel particle, alumina particle, molecular sieve
Or one kind or at least two mixture in the concentrated sulfuric acid;
Preferably, the consumption of the drier is 1/3rd of the volume of the gas drier;
Preferably, the mesh number of the calcium chloride granules is 20~40 mesh, and the particle diameter of the discoloration silica gel particle is 5mm, institute
The particle diameter for stating alumina particle is 5mm, and the molecular sieve is 5A molecular sieves, 13X molecular sieves, and the particle diameter of the molecular sieve is 5mm,
The mass fraction of the concentrated sulfuric acid is 98%.
The air inlet of the gas mixer can also be passed through volatile pollutants component, it is preferable that the volatilization pollution
Thing component is benzene.
The second object of the present invention is to provide a kind of evaluation method of ozone purification evaluation system, comprised the following steps:
1) by O2It is passed through the ozone generating-device and prepares ozone, by N2It is passed through the steam generating means and prepares steam;
2) by step 1) generation ozone mixed with steam in the gas mixer, be well mixed after gaseous mixture is led to
Enter the ozone purification reaction unit and carry out ozone degradation reaction;
3) by step 2) reacted tail gas is passed through the gas drier and dries;
4) by step 3) dried tail gas is passed through ozone-detecting element detection ozone concentration.
Step 1) in, the generating process of the ozone is:The discharge light with low pressure gas is inserted into the quartzy spiral
In coil pipe, ultraviolet light is produced after energization, by high-purity O2The quartzy spiral coil is passed through, ozone is generated under ultraviolet light;
Preferably, the O2Flow be 1~500mL, such as 1mL, 100mL, 200mL, 300mL, 400mL, 500mL;
Preferably, the dominant wavelength for the ultraviolet light that the discharge light with low pressure gas is produced is 185nm;
Preferably, the power-on voltage of the discharge light with low pressure gas is 220V, and energization electrical power is 10~40W.
Step 1) in, the generating process of the steam is:By high-purity N2It is passed through the stripping wash bottle bubbler, the stripping
Wash bottle bubbler contains 1/3rd deionization pure water, and the stripping wash bottle bubbler is placed in water bath with thermostatic control, adjusts
The temperature generation steam of the water-bath;
Preferably, the N2Flow be 500~2000mL, such as 500mL, 600mL, 700mL, 800mL, 900mL,
1000mL、1100mL、1200mL、1300mL、1400mL、1500mL、1600mL、1700mL、1800mL、1900mL、2000mL;
Preferably, the temperature range of the water-bath be 10~99 DEG C, such as 10 DEG C, 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C, 60
℃、70℃、80℃、90℃、91℃、92℃、93℃、94℃、95℃、96℃、97℃、98℃、99℃。
Step 2) in, the process of the gas mixer mixed gas is, step 1) made from ozone and oxygen it is mixed
Compound, the steam of volatilization converge, via the 3rd tunnel high-purity N2Balance enters gas mixer mixing;
Preferably, the gas mixer is also mixed with benzene, and the benzene is passed through the gas mixing through benzene gas branch road
Device.
Compared with prior art, beneficial effects of the present invention are:
(1) compound method of humidity of the invention, the adjustable ozone purification evaluation system of content, steam and ozone is simply easy
Control, good efficiency.The present invention is integrated by serial process, can simulate the pollution atmosphere that ozone and steam mixes and meet analog loop
The specific requirement of border pollution, and lower energy expenditure and deduction and exemption complicated procedures of forming to greatest extent.
(2) humidity of the invention, the adjustable ozone purification evaluation system of content, the simulation of ozone pollution atmosphere has not been only reached
Purpose, and presence that steam can be evaded by gas drier it is quantitative to ozone it is dry around, it is ensured that ozone analysis is high
Effect is accurate, extends the service life of detection means.
(3) evaluation method for the ozone purification evaluation system that the present invention is provided, is widely used in sewage treatment plant, printing house
Deng the simulating-estimating device of stationary source ozone purification processing, it will effectively accelerate the process of ozone purification developing material, can conduct
Evaluate the engineering preliminary experiment equipment of ozone purification technology.
Brief description of the drawings
Fig. 1 is humidity of the invention, the structural representation of the adjustable ozone purification evaluation system of content;
Fig. 2 is Fig. 1 flow chart in kind;
Fig. 3 (a) be Fig. 1 in ozone generating-device structural representation;
Fig. 3 (b) be Fig. 1 in ozone generating-device cross-sectional structure schematic diagram;
Fig. 4 is the ozone distribution stabilization result schematic diagram of embodiments of the invention 1;
Fig. 5 is repeated 7 times obtained ozone distribution stabilization result schematic diagram for Fig. 4 ozone configuration process;
Fig. 6 is the ozone concentration through being measured before and after drying of embodiments of the invention 2, the schematic diagram of humidity change;
Fig. 7 is the schematic diagram that Fig. 6 is repeated 3 times the ozone concentration change through being measured before and after drying;
The schematic diagram that Fig. 8 decomposes for ozone tail gas under the conditions of the different humidity of embodiments of the invention 3.
Reference is as follows:
1- ozone generating-devices;11- quartz spiral coils;12- discharge light with low pressure gas;2- steam generating means;3-
Gas mixer;4- ozone purification reaction units;5- gas driers;6- ozone-detecting elements;7- Balance Air branch roads;8-
Other contaminant gases branch roads.
Embodiment
1-8 and technical scheme is further illustrated by embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of humidity of the present invention, the adjustable ozone purification evaluation system of content, including ozone are filled
Put 1, steam generating means 2, gas mixer 3, ozone purification reaction unit 4, ozone-detecting element 6, gas mixer 3
It is arranged between ozone generating-device 1 and ozone purification reaction unit 4, ozone purification reaction unit 4 is arranged at gas mixing dress
Put between 3 and ozone-detecting element 6, ozone generating-device 1, steam generating means 2 gas outlet respectively with gas mixer 3
Air inlet be connected;Gas drier 5 is provided between ozone purification reaction unit 4 and ozone-detecting element 6.Fig. 2 is this
The flow chart in kind of the adjustable ozone purification evaluation system of humidity, content of invention.As shown in Fig. 3 (a), ozone generating-device 1
Including O2Gas circuit, quartzy spiral coil 11, discharge light with low pressure gas 12 and the flowmeter for measuring ozone growing amount, flow
Meter is arranged between quartzy spiral coil 11 and gas mixer 3, O2Pass through O2Gas circuit is passed through quartzy spiral coil 11, generation
O3Enter gas mixer 3 after being measured through quantifier;Discharge light with low pressure gas 12 can be uviol lamp, and its quantity can
Adjust;Flowmeter can be mass flowmenter;O is controlled by flowmeter2Flow and open discharge light with low pressure gas number
Amount, the content of accurate control ozone generation.Quartzy spiral coil 11 wraps up by the discharge light with low pressure gas 12, and parcel is determined
Justice is that the outside of quartzy spiral coil 11 is settable multiple low-pressure gaseous discharge lamps 12, the quartzy postrotational length side of coil pipe
To consistent with the length direction of low-pressure gaseous discharge lamp 12, the inner side of quartzy spiral coil 11 may also set up low pressure gaseous discharge
Lamp, and quantity is adjustable.Fig. 3 (b) is the structural representation of Fig. 3 (a) cross section.The caliber of quartzy spiral coil 11 be 3~
6mm, the length of quartzy spiral coil 11 is 10~40cm, a diameter of 50~100mm of the cross section of quartzy spiral coil 11.Can
The parameters such as discharge lamp model, power and quantity, oxygen flow, and quartzy coil lengths are adjusted, the growing amount of ozone is adjusted.
Steam generating means 2 include N2Gas circuit, stripping wash bottle bubbler and the flowmeter for measuring steam growing amount, stream
Gauge is arranged between stripping wash bottle bubbler and gas mixer 3, N2Pass through N2Gas circuit is passed through stripping wash bottle bubbler, raw
Into steam measured through quantifier after enter gas mixer 3.
Drier in gas drier 5 is calcium chloride granules, discoloration silica gel particle, alumina particle, molecular sieve or
One kind or at least two mixture in the concentrated sulfuric acid.The consumption of drier is 1/3rd of the volume of gas drier 5,
The steam in mixed tail gas is set suitably to be absorbed.Preferably, the mesh number of calcium chloride granules is 20~40 mesh, discoloration silica gel particle
Particle diameter is 5mm, and the particle diameter of alumina particle is 5mm, and molecular sieve is 5A molecular sieves, 13X molecular sieves, and the particle diameter of molecular sieve is 5mm,
The mass fraction of the concentrated sulfuric acid is 98%.The air inlet of gas mixer 3 can also be passed through by other contaminant gases branch roads 8
Volatile pollutants component, the pollution atmosphere that thus simulation ozone and steam mix meets the specific requirement of simulated environment pollution.It is excellent
Selection of land, volatile pollutants component is benzene.
The evaluation method of the ozone purification evaluation system of the present invention, comprises the following steps:
1) by O2It is passed through ozone generating-device 1 and prepares ozone, by N2It is passed through steam generating means 2 and prepares steam.
Wherein, the generating process of ozone is:Discharge light with low pressure gas 12 is inserted in quartzy spiral coil 11, after energization
Ultraviolet light is produced, by high-purity O2Quartzy spiral coil 11 is passed through, ozone is generated under ultraviolet light.Regulating discharging lamp-type
Number, power and quantity, oxygen flow, and the parameter such as quartzy coil lengths adjusts the growing amount of ozone.Oxygen flow is adjustable,
Preferably, O2Flow be 1~500mL;Quartz disk caliber and adjustable length.It can be inserted into quartzy coil pipe in ozone generator
Discharge light with low pressure gas one or several, it is preferable that the dominant wavelength of ultraviolet light that discharge light with low pressure gas 12 is produced is
185nm;Preferably, the power-on voltage of discharge light with low pressure gas 12 is 220V, and energization electrical power is 10~40W.
The generating process of steam is:By high-purity N2It is passed through stripping wash bottle bubbler, stripping wash bottle bubbler contains three/
One deionization pure water, stripping wash bottle bubbler is placed in water bath with thermostatic control, is adjusted the temperature of water-bath and can be quantified generation water
Vapour, modulates the size of humidity.Preferably, N2Flow be 500~2000mL;Preferably, the temperature range of water-bath be 10~
99℃。
2) by step 1) generation ozone mixed with steam in gas mixer 3, be well mixed after gaseous mixture is passed through
Ozone purification reaction unit 4 carries out ozone degradation reaction;Wherein, the process of the mixed gas of gas mixer 3 is, step 1) system
Ozone and the mixture of oxygen, the steam of volatilization obtained converges, and the 3rd tunnel high-purity N 2 enters gas via the balance of Balance Air branch road 7
Mixing arrangement 3 is mixed;Preferably, gas mixer 3 is also mixed with benzene, and benzene is passed through gas mixer 3 through benzene gas branch road.
The complicated pollution atmosphere that the homogeneous ozone of concentration is mingled with steam is gone out according to as above flowsheeting, facilitates subsequent purification device to carry out smelly
Affecting laws of the other factors such as steam to ozone purification are evaluated and investigated in oxygen degraded.Above-mentioned simulating pollution atmosphere, enters
Enter the ozone purification reaction unit 4 of ozone purification material is housed, the portion temperature is controllable and constant.Ozone purification reaction unit 4
Stop valve is closed, then the pollution atmosphere configured is via ozone-detecting element 6 is bypassed into, needed for confirming whether distribution reaches, entirely
Cheng Baowen prevents condensation vapor.
3) by step 2) reacted tail gas is passed through gas drier 5 and dries;By the tail gas after purification or bypass
Distribution imports gas drier 5, and removing steam prevents steam from entering ozone-detecting element 6 and causing instrument damage or disturb smelly
The concentration analysis of oxygen.
4) by step 3) dried tail gas is passed through the detection ozone concentration of ozone-detecting element 6, and dried tail gas makes instrument
Device is avoided that the erosion of steam, increases the service life.
Embodiment 1
A. the N that volume fraction is 99.99% will be contained2And O2The ozone purification evaluation system of the steel cylinder gas connection present invention;
B. at ambient temperature, steel cylinder gas is passed through equipment, N is controlled by mass flowmenter2Flow is 800ml/min, O2
Flow is 200ml/min, and two kinds of gas mixings enter quartz glass coil pipe, and the uviol lamp for opening a monochrome 185nm is shone
Penetrate, power is 36W, be discharged into analysis detection device;
C. U.S. 2B model 202 type ozone analyzer (ozone-detecting element 6) on-line analysis ozone concentration is used
(its precision is 1.5ppb);
By 12 hour on-line testings, ozone distribution stabilization result is obtained as shown in Figure 4.As seen from Figure 4,20 points
Ozone generation concentration is stable after clock, constant density is 15.4ppm, and standard deviation is 0.23, error range by survey concentration
1.49%.
Above-mentioned ozone configuration process is repeated 7 times and obtains result as shown in figure 5, as seen from Figure 5, it is smelly by 20 minutes
Distribution stabilization occurs for oxygen, and it is 15.4 or so that seven times, which are tested equal constant concentration, and relative deviation is 0.095, can be with the steady of proof system
It is qualitative.
Embodiment 2
A. the N that volume fraction is 99.99% will be contained2And O2The ozone purification evaluation system of the steel cylinder gas connection present invention;
B. at ambient temperature (25 DEG C), steel cylinder gas is passed through equipment, N is controlled by mass flowmenter2Flow is
800ml/min, is flowed into the stripping bottle for containing deionized water.Stripping bottle inserts constant temperature water bath environment, and steady temperature is set to 15
℃.Afterwards with O of the flow for 200ml/min2Mixing, into quartz glass tube, the uviol lamp for opening a monochrome 185nm is carried out
Irradiation, power is 36W, and blank pipe is passed through whole equipment;
C. pretreatment is dried into gas drier 5 (hothouse) in tail gas, and gas drier 5 is that splendid attire is
500ml conical wash bottles, inside contains one kind in the concentrated sulfuric acid or calcium chloride granules or 13X or 5A zeolite molecular sieves of 1/3 volume
Or it is several.As a comparison, tail gas does not enter gas drier 5 and is directly entered ozone detector.
D. with the type ozone analyzer on-line analysis ozone concentrations of U.S. 2B model 202 (its precision is 1.5ppb);
The relative humidity Temperature and Humidity instrument on-line analyses of CENTER 310, experimental result is as shown in Figure 6.
As shown in fig. 6, by Steam treatment of the gas drier 5 to tail gas, the ozone concentration of proportioning does not substantially decline
Subtract, and the humidity for passing through the tail gas of gas drier 5 is significantly cut down.Thus protect the analysis detection device of ozone.
The ozone analyzer magnetic valve damaged in Fig. 6, exactly the not controlled long time integration of carbonated drink detracts service life before.Cause
This, Moisture control unit is effectively increased in the present invention, i.e., by increasing gas drier 5, remove the water in mixed tail gas
Vapour, in the case of ensureing that ozone concentration is constant, control excess moisture corrodes core detection device.
Above-mentioned ozone and steam are mixed, effectively control steam enters detection device and observes ozone concentration change, experiment
Condition is as it appears from the above, to obtain result in triplicate as shown in Figure 7.
As seen from Figure 7, occurs distribution stabilization by about 20 minutes ozone, three times mixing steam test ozone concentration is equal
Constant is 15.4 or so, and relative humidity is 70%.But the steam for entering detecting system is reduced to less than 2.5%.Can prove be
The stability and extension detection device service life of system.
Embodiment 3
A. the N that volume fraction is 99.99% will be contained2And O2The ozone purification evaluation system of the steel cylinder gas connection present invention;
B. at ambient temperature (25 DEG C), steel cylinder gas is passed through equipment, N is controlled by mass flowmenter2Flow is
800ml/min, is flowed into the stripping bottle for contain deionized water or stripping bottle drying does not contain water.Stripping bottle inserts constant temperature water bath ring
Border, steady temperature is set to 15 DEG C.Afterwards with O of the flow for 200ml/min2Mixing, into quartz glass tube, opens a list
Color 185nm uviol lamp is irradiated, and power is 36W, and blank pipe is passed through whole equipment;
C. the atmosphere of cooperation is passed through among the crystal reaction tube equipped with solid material, solid material aoxidizes for homemade manganese
Thing, weight is 0.2 gram, and tabletting screening obtains 40~60 mesh particles, and process is without obvious pressure drop.
D. pretreatment is dried into gas drier 5 in tail gas, and gas drier 5 is that splendid attire is 500ml triangles
Wash bottle, inside contains the one or more in the concentrated sulfuric acid or calcium chloride granules or 13X or 5A zeolite molecular sieves of 1/3 volume.
E. with the type ozone analyzer on-line analysis ozone concentrations of U.S. 2B model 202 (its precision is 1.5ppb);
The relative humidity Temperature and Humidity instrument on-line analyses of CENTER 310, obtain the real-time monitoring concentration results of catalyst cleaning ozone
As shown in Figure 8.
As shown in figure 8, after ozone distribution in about 30 minutes stabilizes to 15.4ppm, being successively passed through equipped with Mn oxide
Among reaction tube, ozone is decomposed rapidly.Relative humidity be 10% atmosphere in, up in 7h test, be monitoring it is smelly
Oxygen contamination;And under 70% relative humidity, there is 0.7ppm ozone pollutions residual.
To sum up experiment understands that newly-established ozone, steam mixing distribution reaction system accurately can not only control ozone to generate
Concentration, the combined pollution that can also coordinate simulation steam to exist, what exhaust system can be selective removes steam without influenceing ozone
Content, it is convenient to carry out analysis detection, it can conveniently demonstrate, evaluate the collaboration polluting effect of ozone and steam, and pollutant monitoring
Equipment is effectively protected, and while high humility is simulated, the service life of ozone detector is not influenceed, be can be widely applied to smelly
POLLUTION SIMULATION and ozone the generation field of oxygen.
One kind that the present invention is provided meets the adjustable ozone purification evaluation system of ozone distribution stabilization, relative humidity, content,
Available for the Simulation evaluation of ozone purification in environment, scientific research and teaching field can be widely applied to.
Above example is only used for illustrating the method detailed of the present invention, the invention is not limited in above-mentioned method detailed, i.e.,
Do not mean that the present invention has to rely on above-mentioned method detailed and could implemented.Person of ordinary skill in the field is it will be clearly understood that right
Any improvement of the present invention, addition, the selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention
Deng within the scope of all falling within protection scope of the present invention and being open.
Claims (10)
1. the adjustable ozone purification evaluation system of a kind of humidity, content, it is characterised in that including ozone generating-device (1), steam
Generating means (2), gas mixer (3), ozone purification reaction unit (4), ozone-detecting element (6), the gas mixing
Device (3) is arranged between the ozone generating-device (1) and the ozone purification reaction unit (4), and the ozone purification is anti-
Device (4) is answered to be arranged between the gas mixer (3) and the ozone-detecting element (6), the ozone generating-device
(1), air inlet of the gas outlet of the steam generating means (2) respectively with the gas mixer (3) is connected;The ozone
Gas drier (5) is provided between purification reaction apparatus (4) and the ozone-detecting element (6).
2. ozone purification evaluation system according to claim 1, it is characterised in that the ozone generating-device (1) includes O2
Gas circuit, quartzy spiral coil (11), discharge light with low pressure gas (12) and the flowmeter for measuring ozone growing amount, the stream
Gauge is arranged between the quartzy spiral coil (11) and the gas mixer (3), O2Pass through the O2Gas circuit is passed through institute
Quartzy spiral coil (11) is stated, the quartzy spiral coil (11) is wrapped up by the discharge light with low pressure gas (12).
3. ozone purification evaluation system according to claim 2, it is characterised in that the pipe of the quartzy spiral coil (11)
Footpath is 3~6mm, and the length of the quartzy spiral coil (11) is 10~40cm, the cross section of the quartzy spiral coil (11)
A diameter of 50~100mm.
4. the ozone purification evaluation system according to one of claim 1-3, it is characterised in that the steam generating means
(2) N is included2Gas circuit, stripping wash bottle bubbler and the flowmeter for measuring steam growing amount, the flowmeter are arranged at described
Between stripping wash bottle bubbler and the gas mixer (3), N2Pass through the N2Gas circuit is passed through the stripping wash bottle bubbling
Device.
5. the ozone purification evaluation system according to one of claim 1-4, it is characterised in that the gas drier
(5) drier in is calcium chloride granules, discoloration silica gel particle, alumina particle, molecular sieve or one kind in the concentrated sulfuric acid or extremely
Few two kinds mixture;
Preferably, the consumption of the drier is 1/3rd of the volume of the gas drier (5);
Preferably, the mesh number of the calcium chloride granules is 20~40 mesh, and the particle diameter of the discoloration silica gel particle is 5mm, the oxygen
The particle diameter for changing alumina particles is 5mm, and the molecular sieve is 5A molecular sieves, 13X molecular sieves, and the particle diameter of the molecular sieve is 5mm, described
The mass fraction of the concentrated sulfuric acid is 98%.
6. the ozone purification evaluation system according to one of claim 1-5, it is characterised in that the gas mixer
(3) air inlet can also be passed through volatile pollutants component, it is preferable that the volatile pollutants component is benzene.
7. a kind of evaluation method of ozone purification evaluation system, it is characterised in that comprise the following steps:
1) by O2It is passed through the ozone generating-device (1) and prepares ozone, by N2It is passed through the steam generating means (2) and prepares steam;
2) by step 1) generation ozone mixed with steam in the gas mixer (3), be well mixed after gaseous mixture is led to
Enter the ozone purification reaction unit (4) and carry out ozone degradation reaction;
3) by step 2) reacted tail gas be passed through the gas drier (5) dry;
4) by step 3) dried tail gas be passed through the ozone-detecting element (6) detection ozone concentration.
8. evaluation method according to claim 7, it is characterised in that step 1) in, the generating process of the ozone is:Will
The discharge light with low pressure gas (12) is inserted in the quartzy spiral coil (11), ultraviolet light is produced after energization, by high-purity O2
The quartzy spiral coil (11) is passed through, ozone is generated under ultraviolet light;
Preferably, the O2Flow be 1~500mL;
Preferably, the dominant wavelength for the ultraviolet light that the discharge light with low pressure gas (12) produces is 185nm;
Preferably, the power-on voltage of the discharge light with low pressure gas (12) is 220V, and energization electrical power is 10~40W.
9. the evaluation method according to claim 7 or 8, it is characterised in that step 1) in, the generating process of the steam
For:By high-purity N2The stripping wash bottle bubbler is passed through, the deionization that the stripping wash bottle bubbler contains 1/3rd is pure
Water, the stripping wash bottle bubbler is placed in water bath with thermostatic control, adjusts the temperature generation steam of the water-bath;
Preferably, the N2Flow be 500~2000mL;
Preferably, the temperature range of the water-bath is 10~99 DEG C.
10. the evaluation method according to one of claim 7-9, it is characterised in that step 2) in, the gas mixer
(3) process of mixed gas is, step 1) made from mixture, the steam of volatilization of ozone and oxygen converge, via the 3rd tunnel
High-purity N2Balance enters the gas mixer (3) mixing;
Preferably, the gas mixer (3) is also mixed with benzene, and the benzene is passed through the gas mixing through benzene gas branch road and filled
Put (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710569352.2A CN107219324B (en) | 2017-07-13 | 2017-07-13 | Ozone purification evaluation system and method with adjustable humidity and content |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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