CN102824834B - Apparatus for removing trace acidic gas in indoor air, and method and application thereof - Google Patents
Apparatus for removing trace acidic gas in indoor air, and method and application thereof Download PDFInfo
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- CN102824834B CN102824834B CN201210303120.XA CN201210303120A CN102824834B CN 102824834 B CN102824834 B CN 102824834B CN 201210303120 A CN201210303120 A CN 201210303120A CN 102824834 B CN102824834 B CN 102824834B
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Abstract
The invention discloses an apparatus for removing trace acidic gas in indoor air, and a method and an application thereof. The apparatus provided by the invention comprises a spray bed reaction system, an air power system and an absorption liquid circulating system, and the three systems are integrally connected, wherein the spray bed reaction system comprises a bed cylinder, the air power system comprises a fan, an air inlet pipe and an air outlet, and the absorption liquid circulating system comprises a liquid spray thrower, an absorption liquid circulating pipe, an absorption liquid storage tank and a submersible pump. After starting the fan and the submersible pump of the apparatus, air passes through cylinder chamber of the bed cylinder from bottom to top, and meanwhile contacts with the absorption liquid sprayed from top to bottom, so that the air is absorbed and purified. The apparatus for removing the trace acidic gas in the indoor air has advantages of compact structure, small volume, low noise, easy installation, low energy consumption and excellent purifying effect.
Description
Technical field
The invention belongs to air purification field, be specifically related to a kind of devices and methods therefor and the application that remove trace acidic gas in room air.
Background technology
The time of most people 80% is spent in indoor, and larger than outdoor 5 ~ 10 times of the degree of room air pollution, indoor main acid contaminant is SO
2and NO
2, the SO in room air
2be mainly derived from the imperfect combustion of coal and tobacco, massive epidemiology investigation shows, the indoor SO in coal-fired family
2concentration is apparently higher than combustion gas family, and kitchen is higher than bedroom, and winter, the north was higher than south higher than summer.SO
2to conjunctiva and upper respiratory tract mucosa, there is strong pungent excitant, work as SO
2concentration is at 0.9mg/m
3in time, just can be arrived by most people sense of smell, and mainly have damage to respiratory apparatus after being absorbed by the body, can cause the symptoms such as pharyngitis, tracheitis, bronchitis, pneumonia, severe patient can cause pulmonary edema and respiratory paralysis; Work as SO
2when concentration reaches 10 ~ 15ppm, the ciliary movement of respiratory tract and the secreting function of mucous membrane are all suppressed; Work as SO
2when concentration reaches 20ppm, spread effect strengthens, and can cause cough, eyes feel bad; Work as SO
2when concentration reaches 25ppm, endotracheal ciliary movement will have 65 ~ 70% to be subject to obstacle.In addition, SO
2enter human body together with inhalable particles, its harm is larger, SO
2can lung be entered, make toxicity increase by 3 ~ 4 times, according to the grade of the indoor sulfur dioxide of national regulation, when the concentration of sulfur dioxide is 0.02ppm, reach main air quality standard, when the concentration of sulfur dioxide is 0.1ppm, reach three grades of quality requirements, need purification.NO
2be another noxious acidic pollutant in room air, a large amount of experiments shows, NO
2valve concentration human body being produced to damaging effect is 151 ~ 302ppb.For the nitrogen dioxide pollution in room air, in national Specification room air, the maximum permissible concentration of nitrogen dioxide is 117ppb(1 hourly average value).Thus, to NO excessive in room air
2administering, having great importance for improving room air pollution situation.Therefore purify air, create a health, clean living space oneself become people under the prerequisite of socio-economic development, environmental consciousness is strengthened, to the inevitable outcome that the requirement of quality of life promotes.
The patent that absorption process relevant at present purifies the air of a room is many, and Chinese invention patent " air purifier for environment protection " (application number 99240594.7, publication number CN2418941) is mainly used in the place such as street, highway, and noise is large, energy consumption is large.Chinese invention patent " spraying type air purifier " (application number 00231326.X, publication number CN2413780) feature is that water smoke is difficult to be formed, and a small amount of water smoke of formation is easily taken out of by gas and purifies not thorough.In addition, in the process of spraying air purifying, the trend of air and the degree of dispersing are not paid attention to, general is only directly be passed in container by air to the trend of air, directly discharge after contact pairs liquid, this causes air can not disperse uniformly to come air is fully contacted with treatment fluid, and make treatment effect undesirable, efficiency is not high; The way also had is exactly allow air by discharging from many apertures of pipeline after the pipeline of more complicated, this causes the complex structure of device own, not easily manufacture and operate, and, the speed that air is discharged from hole is not easily grasped, and air is discharged too fast, and air does not have time enough to contact with treatment fluid, air was discharged slowly, caused speed excessively slow.
Summary of the invention
In order to overcome the shortcoming of prior art with not enough, primary and foremost purpose of the present invention is to provide a kind of device removing trace acidic gas in room air.
Another object of the present invention is to provide a kind of above-mentioned device removing trace acidic gas in room air to carry out removing the method for trace acidic gas in room air.
Another object of the present invention is to provide the above-mentioned application removing the device of trace acidic gas in room air.
Object of the present invention is achieved through the following technical solutions:
A kind of device removing trace acidic gas in room air, comprise trickle bed reaction system, aerodynamic system and the absorbing liquid circulatory system, wherein, aerodynamic system integrative installation technology is on trickle bed reaction system, and trickle bed reaction system is connected with the absorbing liquid circulatory system;
Described trickle bed reaction system comprises the bed cylindrical shell of hollow cylinder, is provided with the disk of a center drilling in bed cylindrical shell cylinder chamber, forms cavity between at the bottom of disk and cylinder;
Described aerodynamic system comprises fan, air inlet pipe and gas outlet; Fan is arranged on the stack shell side of a cylindrical shell, the shell of the bed cylindrical shell be connected with fan there is opening, gas can directly enter, the one end open of air inlet pipe is docked with the air port place of fan, other end opening enters into described bed cylindrical shell cavity, and gas outlet is be arranged on the opening on described bed cylindrical shell cylinder top;
The described absorbing liquid circulatory system comprise liquid spray thrower, absorbing liquid circulation pipe, absorbing liquid storage tank, for absorbing liquid being pumped into the immersed pump of absorbing liquid circulation pipe from absorbing liquid storage tank and being used for absorbing liquid to flow into from bed cylindrical shell the absorbing liquid outlet of absorbing liquid storage tank; Wherein, liquid spray thrower is connected to described bed inner barrel Tong Ding center; Absorbing liquid storage tank is tightly connected by tank body top and described bed cylinder body bottom, and absorbing liquid outlet runs through the connecting portion of absorbing liquid storage tank and bed cylindrical shell; Liquid spray thrower, absorbing liquid circulation pipe are connected successively with immersed pump, and immersed pump is positioned at the bottom of absorbing liquid storage tank;
Described aerodynamic system also comprises screen pack; Described screen pack is fixed on before the air inlet of fan;
Start fan, air is successively by entering air inlet pipe after filter screen and fan, air leads to other end opening by air inlet pipe one end open under wind-force orders about, and form cavity between entering at the bottom of disk and cylinder, cavity be arranged so that gas enter after speed obtain certain buffering, when air then enters a tin chamber from the central opening disk, air can with the airflow pattern the most evenly dispersed from bottom to top by cylinder chamber; Start immersed pump, the absorbing liquid in absorbing liquid storage tank is delivered in liquid spray thrower by absorbing liquid circulation pipe by immersed pump, and absorbing liquid is sprayed from bed cylindrical shell cylinder chamber from top to bottom by the shower nozzle of liquid spray thrower; Wherein, the air passed through from bottom to top contacts with the absorbing liquid sprayed from top to bottom, sour gas in air absorbs by absorbing liquid, air after process is discharged from the gas outlet on the cylinder top being located at a cylindrical shell, absorbing liquid is then fallen at the bottom of the cylinder of a cylindrical shell, and receive in liquid storage tank by absorbing liquid outlet flow resorption, absorbing liquid comes back to liquid spray thrower ejection by absorbing liquid circulation pipe under the continuous action of immersed pump, and absorbing liquid obtains efficient circulation and uses;
In order to better realize the present invention, the present invention also comprises following optimal technical scheme:
Described bed cylindrical shell is stainless steel casting;
Flange plate connection enclosuring structure is at the bottom of the cylinder top of described bed cylindrical shell and cylinder;
The cylinder top of described bed cylindrical shell is provided with an absorbing liquid that can add absorbing liquid and supplements mouth;
The diameter of the central opening of described disk is 80 ~ 100mm, the reason that opening is larger is the unobstructed of guarantee gas-liquid contact, when air enters a tin chamber from this opening, the mode that will disperse from center to periphery is upward through a chamber, and air can better be contacted with absorbing liquid;
Described disk and the height at the bottom of cylinder are 50mm;
Described air inlet pipe diameter is 80 ~ 100mm, and because air inlet pipe arranges comparatively thick, aerodynamic system energy consumption is little, and noise is little;
Described gas outlet is the hole on 4 cylinder tops being evenly distributed on described bed cylindrical shell;
The shower nozzle of described liquid spray thrower is that each injection diameter is 3 ~ 5mm and is roundedly evenly arranged in shower nozzle cross section, shower nozzle centre does not have perforate, because spray orifice is very little, water column under liquid drenches is evenly fine and closely woven, ensure that absorbing liquid absorbs the sour gas in air completely, reach efficient purification function; In addition, due to liquid be directly drenched by spray thrower under, be not traditional water smoke state, when purge amount is large, water column is also not easily taken out of by gas, makes Purge gas more thorough;
The maximum cross-section internal diameter of the shower nozzle of described liquid spray thrower is 5/6 of a cylinder internal diameter size;
Described absorbing liquid storage tank is the drum of stainless steel casting;
The cross-sectional diameter of described absorbing liquid storage tank is greater than described bed cylindrical shell cross-sectional diameter, preferably, described bed cylindrical shell cross-sectional diameter is 3/5 of the cross-sectional diameter of described absorbing liquid storage tank, when described bed cylindrical shell is placed on described absorbing liquid storage tank, whole device is placed and can be kept stable;
The abhiseca of described absorbing liquid storage tank is that flange plate connects enclosuring structure;
The bottom of described absorbing liquid storage tank is provided with the absorbing liquid outlet of being discharged by absorbing liquid;
The liquid level gauge judging absorbing liquid reserves in tank is provided with in described absorbing liquid storage tank;
Described absorbing liquid tank bottom is provided with immersible pump electric line outlets, by this outlet, immersed pump is connected with power supply;
Described absorbing liquid outlet is the hole of the shape such as circle or rectangle, it is the circular hole of 50mm that described absorbing liquid outlet is preferably 4 diameters, so not only can reduce absorbing liquid directly to spray down and produce noise, and absorbing liquid enters into absorbing liquid storage tank from the air avoided in a cylindrical shell while bed cylindrical shell enters absorbing liquid storage tank by absorbing liquid outlet;
Described liquid spray thrower and described bed inner barrel top adopt bite type seamless link;
Described is tightly connected as placing pad and be bolted connection between two flange plates;
Described screen pack is activated charcoal strainer, this screen pack absorbs formaldehyde, greasy smell, lavatory peculiar smell, dust etc., and what ensure to make purification of air more also makes the impurity contained by the gas of access to plant can not have influence on the normal process of acidic gas in air.
The described device removing trace acidic gas in room air, in the method removing trace acidic gas in room air, comprises following concrete steps:
(1) the described device removing trace acidic gas in room air is arranged on the indoor containing trace acidic gas;
(2) alkaline matter is supplemented mouth (2) by the absorbing liquid of the device removing trace acidic gas in room air to add, and then the liquid that is absorbed after adding water; Wherein, the initial molar concentration of alkaline matter is 0.001 ~ 0.05mol/L;
(3) will remove fan (10) and immersed pump (18) energising of the device of trace acidic gas in room air, wherein, air is 30 ~ 90m by the speed (namely purifying tolerance) in cylinder chamber
3/ h; The flow that absorbing liquid sprays from the shower nozzle of liquid spray thrower is 1600L/h;
Wherein, in step (1), described sour gas is the SO containing 0 ~ 150ppb
2and/or the NO of 0 ~ 150ppm
2room air; Described indoor are 30m
3~ 90m
3the space of size, the air flow amount in this space is 0 ~ 5m
3/ h;
In step (2), described alkaline matter is powdered sodium carbonate;
In step (3), when the pH of described absorbing liquid is less than 6, absorbing liquid is changed again.
The application of the described device removing trace acidic gas in room air on process room air, preferably in the process of the room air of air oxygen detrition northern area, while playing the effect purified air, with a small amount of moisture, the effect of humidifying air can be played again by the gas of water column.
The present invention compared with prior art has following outstanding advantage and beneficial effect:
(1) apparatus structure removing trace acidic gas in room air of the present invention is compact, volume is little, noise is little, be easy to installation, energy consumption little (power of fan is about 30W, and the power of immersed pump is about 15W), safety and adopt circulatory system handled easily.
(2) the present invention absorbs the sour gas in air by fountain, purifies more thorough; In addition, by the control to spray orifice size, flow etc. on the shower nozzle of liquid spray thrower, absorbing liquid is with fine and closely woven even water column shape by cylinder chamber, and liquid is not easily taken out of by gas, purifies large-minded, can reach 90m
3/ h, solves and is taken out of by atomized liquid with the gas occurred during atomized liquid form spray cleaning gas and the halfway problem of purification of air caused.
(3) when air of the present invention is by cylinder chamber, first obtain cushioning in the cavity at the bottom of cylinder and in disk and stop, and then enter into a chamber from the opening be arranged on disc centre, and after air enters a chamber by this way, can pass through in the mode of evenly dispersing to surrounding; Due to the opening of disc centre and the same axle center of liquid spray thrower on cylinder top, liquid spray and under time, ensure that the air entering a chamber can more comprehensively, contact with absorbing liquid uniformly, make air purification effect more outstanding.
(4) the present invention effectively can remove formaldehyde, dust etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device removing trace acidic gas in room air.
Fig. 2 is a flange plate a on cylindrical shell cylinder top or the sectional view of flange plate b.
Fig. 3 be liquid spray thrower shower nozzle on the distribution sectional view of each circular hole.
Fig. 4 is the flange plate c of absorbing liquid storage tank abhiseca or the sectional view of flange plate d.
In Fig. 1 ~ 2 or 4,1: liquid spray thrower; 2: absorbing liquid supplements mouth; 3: flange plate a; 4: bolt a; 5: pad a; 6: flange plate b; 7: gas moves towards a; 8: screen pack; 9: gas moves towards b; 10: fan; 11: gas moves towards c; 12: flange plate c; 13: bolt b; 14: flange plate d; 15: absorbing liquid exports; 16: absorbing liquid storage tank; 17: absorbing liquid outlet; 18: immersed pump; 19: absorbing liquid circulation pipe; 21: liquid level gauge; 20: immersible pump electric line outlets; 22: bolt c; 23: pad b; 24: air inlet pipe; 25: gas moves towards d; 26: bed cylindrical shell; 27: gas moves towards e; 28: bolt d; 29: gas outlet; 30: disk.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 1, a kind of device removing trace acidic gas in room air, comprises trickle bed reaction system, aerodynamic system and the absorbing liquid circulatory system.
Trickle bed reaction system comprise stainless steel manufacture bed cylindrical shell (26), flange plate a(3), flange plate b(6) and flange plate c(12), bed cylindrical shell (26) is hollow cylinder, comprise at the bottom of a chamber, stack shell, cylinder and cylinder top, cylinder chamber internal diameter is 120mm, stack shell height is 300mm, bed cylindrical shell (26) wall thickness 3mm, cylinder top opening end and flange b(6) integratedly to connect, cylinder bottom opening end and flange plate c(12) integratedly to connect; At the bottom of the distance cylinder of cylinder chamber, height is that 50mm place is arranged at disk (30), flange plate c(12 at the bottom of disk and cylinder) between form cavity, the center circle place of disk (30) is provided with the circular hole of a 80mm diameter; As shown in Figure 2, flange plate b(6) center circle place arranges an opening, concentric circles arranged the hole that four symmetrical diameters are 20mm size, in addition, flange plate b(6) on also to arrange an internal diameter be that the absorbing liquid of 20mm supplements mouth (2); Flange plate c(12) be provided with opening.
Aerodynamic system comprises screen pack (8), fan (10), air inlet pipe (24), gas outlet (29); Screen pack can adopt the activated charcoal strainer having and absorb formaldehyde, greasy smell, lavatory peculiar smell, dust effect, and the power of fan is 15W.
The absorbing liquid circulatory system comprises absorbing liquid storage tank (16), absorbing liquid circulation pipe (19), liquid spray thrower (1), the immersed pump (18) that stainless steel manufactures.The internal diameter of absorbing liquid storage tank (16) is 200mm, is highly 200mm, and wall thickness is 3mm, and it is that the alkali lye of 0.03mol/L is as absorbing liquid that 6L concentration is housed in absorbing liquid storage tank (16); Absorbing liquid storage tank (16) abhiseca is by flange plate d(14) integration connection sealing, flange plate d(14) on be provided with four diameters be 50mm absorbing liquid outlet (15) (as shown in Figure 4), be provided with the liquid level gauge (21) can checking absorbing liquid content in tank in absorbing liquid storage tank (16) tank, bottom is provided with the absorbing liquid outlet (17) discarded absorbing liquid can discharged and immersible pump electric line outlets (20) that internal diameter is 10mm; Liquid spray thrower (1) comprises shower nozzle and inlet, and wherein, as shown in Figure 3, this shower nozzle is that each opening diameter is 3mm and is roundedly evenly arranged in shower nozzle cross section to shower nozzle, and sectional area is 0.0314m
2, the distance of center circle of adjacent circular holes is spaced apart 5mm between two, and shower nozzle centre does not have perforate, and the absorbing liquid density that liquid spray thrower sprays out is large and evenly, guarantee absorbing liquid absorbs the sour gas in air completely, reaches efficient purification function; The power of immersed pump (18) is 12W, and flow is 1600L/h, is installed on the tank inner bottom part of absorbing liquid storage tank, is connected with power supply by water pump electric line outlets (20); Liquid circulating pipe (19) is arranged on the outside of reactor, and flexible pipe can be adopted to connect, and installation and removal are convenient, can not get rusty.
Trickle bed reaction system, aerodynamic system and the absorbing liquid circulatory system adopt integrated connection.Wherein, after on the stack shell that described fan (10) is fixed on a cylindrical shell (26), filter screen (8) is covered with on fan (10) again, air inlet pipe (24) one end is arranged on the air outlet place of fan (10), and other end opening enters into flange plate C(12 at the bottom of disk (30) and cylinder through bed cylindrical shell (26) stack shell) the cavity that formed; Gas outlet (29) is then the flange plate b(6 on cylinder top) described in four symmetrical diameters be the hole of 20mm size.Bed cylindrical shell (26) is by the flange plate c(12 at the bottom of cylinder) with the flange plate d(14 of absorbing liquid storage tank (16) abhiseca) be connected, pad b(23 is placed) between two flange plates, and by bolt b(13) and bolt c(22) fastening, flange plate c(12) opening and flange plate d(14) absorbing liquid that arranges exports (15) and mates and be communicated with.Liquid spray thrower (1) is arranged on the top in a cylindrical shell (26) cylinder chamber, shower nozzle downwards and the inlet of liquid spray thrower (1) and flange plate b(6) center of circle opening ferrule type seamlessly to dock, flange plate a(3) with flange plate b(6) have identical opening, at flange plate a(3) and flange plate b(6) between shell tool a(5) and use bolt a(4) and bolt d(28) fastening, the feed tube of the liquid spray thrower (1) after passing is connected with absorbing liquid circulation pipe (19) one end, and absorbing liquid circulation pipe (19) other end is connected with immersed pump (18).
The described device removing trace acidic gas in room air, when after startup fan (10) and immersed pump (18), fan (10) produces gravitation makes air by filter screen (8), because screen pack (8) is Activated carbon matter, can absorb formaldehyde, greasy smell, lavatory peculiar smell, dust etc., what ensure to make purification of air more also makes the impurity contained by the gas of access to plant can not have influence on the normal process of acidic gas in air, air after filtration moves towards c(11 according to diagram gas under the driving of wind-force) shown in be entered at the bottom of disk (30) and cylinder by one end, nearly air port of air inlet pipe (24) between the cavity that formed, cavity be arranged so that gas enter after speed obtain certain buffering, when under wind drive, air then moves towards b(9 according to illustrated gas from lower to upper from the center of circle opening part of disk (30)), gas moves towards d(25) by cylinder chamber, finally, move towards gas move towards a(7 according to diagram gas) gas moves towards e(27) discharge from four gas outlets of cylinder top flange plate (b), when air moves towards b(9 according to illustrated gas from lower to upper), gas moves towards d(25) by cylinder chamber time, immersed pump (18) provides power, absorbing liquid in absorbing liquid storage tank (16) is transported to liquid spray thrower (1) by absorbing liquid circulation pipe (19), absorbing liquid sprays by liquid spray thrower (1), wherein, according to section radius size and the air inflow size of bed cylindrical shell, the shower nozzle section radius of corresponding rearrange liquids spray thrower and uninterrupted, ensure that the absorbing liquid of ejection can cover the air of rising and the sour gas in abundant absorption air comprehensively, can contact with air from bottom to top in the basipetal process of absorbing liquid, absorbing liquid can absorb the sour gas in air, air is purified, absorbing liquid to fall tin at the bottom of after, flow back in absorbing liquid storage tank (16) by flange plate (c) at the bottom of cylinder and the connection opening of the flange plate (d) of absorbing liquid storage tank (16) abhiseca, and recycling of absorbing liquid is realized under immersed pump (18) continuous action, with ph detection paper absorbing liquid, absorbing liquid is changed when reaching 6 by absorbing liquid ph.
Embodiment 2
(1) device removing trace acidic gas in room air described in embodiment 1 being arranged on a spatial volume is 30m
3room, indoor and outdoor gas exchange is 5m
3/ h, acid contaminant is SO mainly
2and NO
2, the concentration of initial SO2 and NO2 is respectively 100ppb and 100ppm, and the concentration of sour gas detects with the concentration monitor of SO2 and NO2 respectively;
(2) 20g powdered sodium carbonate is supplemented mouth (2) by the absorbing liquid of the device described in step (1) to add, and then add 6L water, the initial concentration of absorbing liquid is 0.03mol/L;
(3) start shooting, by fan (10) and immersed pump (18) energising, wherein, air is 30m by the speed (namely purifying tolerance) in cylinder chamber
3/ h; The flow that absorbing liquid sprays from the shower nozzle of liquid spray thrower is 1600L/h.
Indoor NO after start 1 as a child
2content be 40.97ppm, SO
2content be 16.87ppb, air quality is better than the primary standard in GB3092-1996, and according to this type of situation, by the pH value of pH test paper test absorbing liquid after starting shooting every day 1 hour, the absorbing liquid of 0.03mol/L at least can use 6 days.
Embodiment 3
(1) device removing trace acidic gas in room air described in embodiment 1 being arranged on a spatial volume is 60m
3room, indoor and outdoor gas exchange is 5m
3/ h, acid contaminant is SO mainly
2and NO
2, initial SO
2and NO
2concentration be respectively 100ppb and 100ppm, the concentration of sour gas detects with the concentration monitor of SO2 and NO2 respectively;
(2) 20g powdered sodium carbonate is supplemented mouth (2) by the absorbing liquid of the device described in step (1) to add, and then add 6L water, the initial concentration of absorbing liquid is 0.03mol/L;
(3) start shooting, by fan (10) and immersed pump (18) energising, wherein, air is 40m by the speed (namely purifying tolerance) in cylinder chamber
3/ h; The flow that absorbing liquid sprays from the shower nozzle of liquid spray thrower is 1600L/h.
After start 2 as a child, NO
2content be 30.94ppm, SO
2content be 19.47ppb, air quality is better than the primary standard in GB3092-1996, and according to this type of situation, by the pH value of pH test paper test absorbing liquid after starting shooting every day 2 hours, then the absorbing liquid of 0.03mol/L at least can use 5 days.
Embodiment 4
(1) device removing trace acidic gas in room air described in embodiment 1 being arranged on a spatial volume is 90m
3room, indoor and outdoor gas exchange is 5m
3/ h, acid contaminant is SO mainly
2and NO
2, initial SO
2and NO
2concentration be respectively 100ppb and 100ppm, the concentration of sour gas uses SO respectively
2and NO
2concentration monitor detect;
(2) 20g powdered sodium carbonate is supplemented mouth (2) by the absorbing liquid of the device described in step (1) to add, and then add 6L water, the initial concentration of absorbing liquid is 0.03mol/L;
(3) start shooting, by fan (10) and immersed pump (18) energising, wherein, air is 50m by the speed (namely purifying tolerance) in cylinder chamber
3/ h; The flow that absorbing liquid sprays from the shower nozzle of liquid spray thrower is 1600L/h.
After start 2 as a child, NO
2content be 35.87ppm, SO
2content be 18.62ppb, air quality is better than the primary standard in GB3092-1996.According to this type of situation, by the pH value of pH test paper test absorbing liquid after starting shooting every day 2 hours, then the absorbing liquid of 0.03mol/L at least can use 4 days.
Embodiment 5
(1) device removing trace acidic gas in room air described in embodiment 1 being arranged on a spatial volume is 90m
3room, indoor and outdoor gas exchange is 5m
3/ h, acid contaminant is SO mainly
2and NO
2, initial SO
2and NO
2concentration be respectively 100ppb and 100ppm, the concentration of sour gas detects with the concentration monitor of SO2 and NO2 respectively;
(2) 20g powdered sodium carbonate is supplemented mouth (2) by the absorbing liquid of the device described in step (1) to add, and then add 6L water, the initial concentration of absorbing liquid is 0.03mol/L;
(3) start shooting, by fan (10) and immersed pump (18) energising, wherein, air is 90m by the speed (namely purifying tolerance) in cylinder chamber
3/ h; The flow that absorbing liquid sprays from the shower nozzle of liquid spray thrower is 1600L/h.
After start 2 as a child, NO
2content be 39.62ppm, SO
2content be 19.75ppb, air quality is better than the primary standard in GB3092-1996.According to this type of situation, by the pH value of pH test paper test absorbing liquid after starting shooting every day 2 hours, then the absorbing liquid of 0.03mol/L at least can use 2 days.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. one kind removes the device of trace acidic gas in room air, it is characterized in that: comprise trickle bed reaction system, aerodynamic system and the absorbing liquid circulatory system, wherein, aerodynamic system integrative installation technology is on trickle bed reaction system, and trickle bed reaction system is connected with the absorbing liquid circulatory system;
Described trickle bed reaction system comprises the bed cylindrical shell of hollow cylinder, the disk being provided with a center drilling in bed cylindrical shell cylinder chamber, forms cavity between at the bottom of disk and cylinder;
Described aerodynamic system comprises fan, air inlet pipe and gas outlet; Fan is arranged on the stack shell side of a cylindrical shell, and the one end open of air inlet pipe is docked with the air port place of fan, and other end opening enters into described bed cylindrical shell cavity, and gas outlet is be arranged on the opening on described bed cylindrical shell cylinder top;
The described absorbing liquid circulatory system comprise liquid spray thrower, absorbing liquid circulation pipe, absorbing liquid storage tank, for absorbing liquid being pumped into the immersed pump of absorbing liquid circulation pipe from absorbing liquid storage tank and being used for absorbing liquid to flow into from bed cylindrical shell the absorbing liquid outlet of absorbing liquid storage tank; Wherein, liquid spray thrower is connected to described bed inner barrel Tong Ding center; Absorbing liquid storage tank is tightly connected by tank body top and described bed cylinder body bottom, and absorbing liquid outlet runs through the connecting portion of absorbing liquid storage tank and bed cylindrical shell; Liquid spray thrower, absorbing liquid circulation pipe are connected successively with immersed pump, and immersed pump is positioned at the bottom of absorbing liquid storage tank.
2. the device removing trace acidic gas in room air according to claim 1, it is characterized in that: described aerodynamic system also comprises screen pack, screen pack is fixed on before the air inlet of fan.
3. the device removing trace acidic gas in room air according to claim 2, is characterized in that: described screen pack is activated charcoal strainer.
4. the device removing trace acidic gas in room air according to claim 1, is characterized in that:
Described bed cylindrical shell is stainless steel casting;
Flange plate connection enclosuring structure is at the bottom of the cylinder top of described bed cylindrical shell and cylinder;
The cylinder top of described bed cylindrical shell is provided with an absorbing liquid that can add absorbing liquid and supplements mouth;
The diameter of the central opening of described disk is 80 ~ 100mm;
Described disk and the height at the bottom of cylinder are 50mm;
Described air inlet pipe diameter is 80 ~ 100mm;
Described gas outlet is the hole on 4 cylinder tops being evenly distributed on described bed cylindrical shell;
The shower nozzle of described liquid spray thrower is that each injection diameter is 3 ~ 5mm and is roundedly evenly arranged in shower nozzle cross section, and shower nozzle centre does not have perforate;
The maximum cross-section internal diameter of the shower nozzle of described liquid spray thrower is 5/6 of a cylinder internal diameter size;
Described absorbing liquid storage tank is the drum of stainless steel casting;
The cross-sectional diameter of described absorbing liquid storage tank is greater than described bed cylindrical shell cross-sectional diameter;
The abhiseca of described absorbing liquid storage tank is that flange plate connects enclosuring structure;
The bottom of described absorbing liquid storage tank is provided with the absorbing liquid outlet of being discharged by absorbing liquid;
The liquid level gauge judging absorbing liquid reserves in tank is provided with in described absorbing liquid storage tank;
Described absorbing liquid tank bottom is provided with immersible pump electric line outlets;
Described absorbing liquid outlet is hole that is circular or rectangular shape;
Described liquid spray thrower and described bed inner barrel top adopt bite type seamless link;
Described is tightly connected as placing pad and be bolted connection between two flange plates.
5. the device removing trace acidic gas in room air according to claim 4, is characterized in that: described bed cylindrical shell cross-sectional diameter is 3/5 of the cross-sectional diameter of described absorbing liquid storage tank.
6. the device removing trace acidic gas in room air according to claim 4, is characterized in that: described absorbing liquid outlet is 4 diameters is the circular hole of 50mm.
7. the device removing trace acidic gas in room air described in any one of claim 1 ~ 6 carries out the method removing trace acidic gas in room air, it is characterized in that comprising following concrete steps:
(1) device removing trace acidic gas in room air described in described in any one of claim 1 ~ 6 is installed the indoor containing trace acidic gas;
(2) alkaline matter is supplemented mouth (2) by the absorbing liquid of the device removing trace acidic gas in room air to add, and then the liquid that is absorbed after adding water; Wherein, the initial molar concentration of alkaline matter is 0.001 ~ 0.05mol/L;
(3) will remove fan and the immersed pump energising of the device of trace acidic gas in room air, wherein, air is 30 ~ 90m by the speed in cylinder chamber
3/ h; The flow that absorbing liquid sprays from the shower nozzle of liquid spray thrower is 1600L/h.
8. the device removing trace acidic gas in room air according to claim 7 is in the method removing trace acidic gas in room air, it is characterized in that:
In step (1), described trace acidic gas is the SO containing 0 ~ 150ppb
2and/or the NO of 0 ~ 150ppm
2room air; Described indoor are 30m
3~ 90m
3the space of size, the air flow amount in this space is 0 ~ 5m
3/ h;
In step (2), described alkaline matter is powdered sodium carbonate;
In step (3), when the pH of described absorbing liquid is less than 6, absorbing liquid is changed again.
9. the application of the device removing trace acidic gas in room air described in any one of claim 1 ~ 6 on process room air.
10. the application of device on process room air removing trace acidic gas in room air according to claim 9, it is characterized in that: the application of the described device removing trace acidic gas in room air on the room air of process air oxygen detrition northern area, while playing the effect purified air, with a small amount of moisture, the effect of humidifying air can be played again by the gas of water column.
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| CN102824834B true CN102824834B (en) | 2015-06-03 |
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| CN103463974B (en) * | 2013-09-24 | 2015-09-09 | 林天安 | A kind of electro-catalyzing air purifier and the method for purification of air |
| CN104864506B (en) * | 2015-04-03 | 2017-12-19 | 华南理工大学 | A kind of air cleaning unit and air purification method with moisture control function |
| CN106362558A (en) * | 2016-10-18 | 2017-02-01 | 湖南大学 | Scattered coal combustion emission gas and motor vehicle exhaust purification device and pollutant recycling method |
| CN107376611B (en) * | 2017-08-25 | 2020-04-10 | 重庆市南川区庆岩福利碱厂 | Leaching waste gas treatment tower |
| CN112044254B (en) * | 2020-09-01 | 2021-12-14 | 徐丹 | Indoor automatic detection and formaldehyde elimination device |
| CN112146198B (en) * | 2020-09-14 | 2022-02-01 | 浙江凌峰环境工程设备有限公司 | Air purification system of convertible combination |
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| CN1768909A (en) * | 2005-10-19 | 2006-05-10 | 哈尔滨工业大学 | Integrated method for treating indoor fit-up harmful gas by baking, air exhausting and biological treatment |
| CN202129003U (en) * | 2010-12-22 | 2012-02-01 | 杭州中兵环保有限公司 | Waste gas purification device for leaded brass smelting furnace |
| CN202725010U (en) * | 2012-08-23 | 2013-02-13 | 华南理工大学 | Device for removing trace acidic gas in indoor air |
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- 2012-08-23 CN CN201210303120.XA patent/CN102824834B/en not_active Expired - Fee Related
Patent Citations (4)
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| JP2000051627A (en) * | 1998-08-12 | 2000-02-22 | Shinei Sangyo Kk | Operating stand with transfer type gas purifier |
| CN1768909A (en) * | 2005-10-19 | 2006-05-10 | 哈尔滨工业大学 | Integrated method for treating indoor fit-up harmful gas by baking, air exhausting and biological treatment |
| CN202129003U (en) * | 2010-12-22 | 2012-02-01 | 杭州中兵环保有限公司 | Waste gas purification device for leaded brass smelting furnace |
| CN202725010U (en) * | 2012-08-23 | 2013-02-13 | 华南理工大学 | Device for removing trace acidic gas in indoor air |
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