CN116025987A - Purification system for removing laboratory organic waste gas and inorganic waste gas - Google Patents
Purification system for removing laboratory organic waste gas and inorganic waste gas Download PDFInfo
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- CN116025987A CN116025987A CN202211709226.XA CN202211709226A CN116025987A CN 116025987 A CN116025987 A CN 116025987A CN 202211709226 A CN202211709226 A CN 202211709226A CN 116025987 A CN116025987 A CN 116025987A
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Abstract
The invention discloses a purification system for removing laboratory organic waste gas and inorganic waste gas, which comprises a photocatalysis mechanism, a low-temperature plasma treatment mechanism and a biological liquid adsorption mechanism; the photocatalysis mechanism comprises a plurality of catalysis treatment columns, the catalysis treatment columns comprise circulation guide columns, air circulation grooves extending spirally are formed in the outer sides of the circulation guide columns, a catalysis attachment shell is arranged in a surrounding manner and clinging to the outer side walls of the circulation guide columns, the catalysis attachment shell is made of transparent materials, and a layer of titanium dioxide coating is attached to the inner side walls of the catalysis attachment shell; the waste gas is subjected to photocatalysis by utilizing the plurality of catalytic treatment columns, so that most organic matters and part of inorganic waste gas in the waste gas can be removed, and the waste gas can be subjected to photocatalysis treatment by utilizing sunlight as an energy source under the condition of sufficient sunlight, thereby protecting environment and saving energy sources; the low-temperature plasma treatment mechanism is utilized to discharge and break down air, and the high-efficiency removal of the organic waste gas is realized under the ionization effect of discharge plasma.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a purification system for removing laboratory organic waste gas and inorganic waste gas.
Background
The ventilation design of laboratory is the safety problem of foremost solution, still considers creating a comfortable operational environment for the experimenter, solves temperature, air current, noise's problem, and minimum energy consumption is guaranteed simultaneously, and the system is stable, easy control, easy operation management. In short, the design is to be made from the aspects of safety, comfort, energy saving and reliable operation. Through the ventilation times, ventilation forms, room pressure differences and control system standards related to the chemical laboratory of the type;
laboratory air purification system that uses at present is to the comparatively complicated laboratory waste gas of composition when handling, can not accomplish comprehensive effectual purification to laboratory waste gas.
Disclosure of Invention
The invention aims to provide a purification system for removing laboratory organic waste gas and inorganic waste gas, which can comprehensively purify waste gas generated in a laboratory.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a purification system for removing laboratory organic waste gas and inorganic waste gas comprises a photocatalysis mechanism, a low temperature plasma treatment mechanism and a biological liquid adsorption mechanism;
the photocatalysis mechanism comprises a plurality of catalysis treatment columns, the catalysis treatment columns comprise circulation guide columns, air circulation grooves extending spirally are formed in the outer sides of the circulation guide columns, a catalysis attachment shell is arranged in a surrounding manner and clinging to the outer side walls of the circulation guide columns, the catalysis attachment shell is made of transparent materials, and a layer of titanium dioxide coating is attached to the inner side walls of the catalysis attachment shell;
the outside of the catalytic adhesion shell is surrounded by a light source shell, and a plurality of luminous tubes are fixed on the inner side wall of the light source shell;
an air outlet pipe and an air inlet pipe which are communicated with the air circulation groove are respectively and fixedly arranged at two ends of the circulation guide post;
the low-temperature plasma treatment mechanism comprises a collecting flow pipe and a plurality of diversion fixing rings closely paved in the collecting flow pipe, wherein an electrode ring and an electrode rod are arranged in the diversion fixing rings, the electrode rod is arranged at the axis of the inner side of the electrode ring, and a magnetic ring is fixedly arranged on the outer side of the electrode ring;
an insulating plate is fixedly arranged in the shunt fixing ring, a magnetic ring fixing hole is formed in the insulating plate, and the magnetic ring is fixed in the magnetic ring fixing hole;
the biological liquid adsorption mechanism comprises a biological treatment tank, a plurality of aeration supporting pipes extending along the vertical direction are fixed in the biological treatment tank, a plurality of aeration rings are fixedly arranged on the aeration supporting pipes, the aeration rings are hollow shells, and a plurality of aeration small holes communicated with the inside and the outside are formed in the aeration rings;
a plurality of aeration input pipes are arranged in the aeration supporting pipe and are communicated with the aeration rings one by one;
the air outlet pipe is communicated with the input end of the collecting flow pipe, and the output end of the collecting flow pipe is communicated with the aeration input pipe.
The biological treatment tank is filled with a biological treatment liquid rich in microorganisms, wherein the biological treatment liquid is a bacterial solution with the mass percentage of 0.5% -5%, and the bacteria are one or a combination of more than two of nitromonas, nitrospira, nitrococcus, nitrophyllomyces, nitrothorn bacteria and nitrococcus;
preferably, an air circulation input pipe, an air circulation output pipe and a plurality of exhaust branch pipes are fixedly arranged in a single room of the laboratory;
the air circulation input pipe is fixed at the position of the inner side wall of the laboratory, which is close to the top, the air circulation output pipe is fixed at the position of the inner side wall of the laboratory, which is close to the bottom, and the plurality of exhaust branch pipes are uniformly distributed and fixed on the inner side wall of the laboratory along the vertical direction and are communicated with the air circulation output pipe;
the air circulation output pipe is connected with an air delivery pump, the input end of the air delivery pump is communicated with the air circulation output pipe, and the output end of the air delivery pump is communicated and connected with the air input pipe through a pipeline.
Description: the air circulation input pipe, the air circulation output pipe and the plurality of exhaust branch pipes form a three-dimensional air circulation system in the laboratory space, which is beneficial to more effectively and circularly purifying the air in the laboratory.
Preferably, a plurality of catalytic treatment columns are integrally fixed in a photocatalytic summary flow shell, a first input pipe and a first output pipe are fixedly arranged on the photocatalytic summary flow shell, a supporting partition plate is fixedly arranged in the photocatalytic summary flow shell, the inside of the photocatalytic summary flow shell is divided into a first cavity and a second cavity by the supporting partition plate, and the first input pipe and the first output pipe are respectively communicated with the first cavity and the second cavity;
the supporting partition plate is provided with a plurality of catalytic column fixing holes, the catalytic treatment column is fixed in the catalytic column fixing holes, and the air input pipe and the air discharge pipe are respectively communicated with the first cavity and the second cavity.
Description: and a plurality of catalytic treatment columns are integrated and fixed in the photocatalytic summary flow shell, so that the waste gas can be subjected to one-time centralized treatment.
Preferably, the photocatalysis mechanism further comprises a solar lighting mechanism, the solar lighting mechanism comprises a light collecting cover, the light collecting cover is of a horn-shaped shell structure, a layer of high-reflection coating is arranged on the inner side wall of the light collecting cover, and a condensing lens is fixedly arranged at the larger end of the light collecting cover;
the light collecting cover is fixedly connected with a light pipe at the other end, diffuse reflection light columns extending up and down are fixedly arranged on the inner side of the light source shell, the diffuse reflection light columns are uniformly distributed along the circumference of the light source shell and are connected with the light pipe through a plurality of light guide fibers, a light reflecting plate is fixedly arranged at the diffuse reflection light column in the light source shell, and the light reflecting plate is arranged on one side, far away from the axis of the light source shell, of the diffuse reflection light columns.
Description: under the condition of sufficient sunlight, the solar lighting mechanism gathers sunlight energy for photocatalysis purification of air, and has the effect of saving energy.
Preferably, the condensing lens is a fresnel lens.
Description: the Fresnel lens has better focusing performance on sunlight.
Preferably, the input end and the output end of the summary flow pipe are respectively fixedly provided with a plasma treatment input pipe and a plasma treatment output pipe;
the cross-sectional area of the plasma treatment input pipe is 90% -110% of the sum of the inner side flow areas of the electrode rings;
the cross-sectional areas of the plasma treatment input pipe and the plasma treatment output pipe are the same.
Description: when the cross section area of the plasma treatment input pipe is smaller than the sum of the inner side flow areas of the plurality of electrode rings, the air flow rate is reduced when air passes through the electrode rings from the plasma treatment input pipe, so that pollutants in the air can be purified thoroughly by utilizing plasma.
Preferably, the side surfaces of the diversion fixing ring, which are close to the plasma treatment input pipe and the plasma treatment output pipe, are fixedly provided with a plurality of diversion nose cones, the diversion nose cones are pyramid-shaped, and the side surfaces of the diversion nose cones are concave cambered surfaces.
Description: the diversion nose cone is used for enabling air to flow more stably, and avoiding unnecessary turbulent flow to be generated as much as possible so as to increase air flow resistance.
Preferably, an annular cooling shell is fixedly arranged between the electrode ring and the magnetic ring, the cooling shell is of a hollow structure, a plurality of partition plates are fixedly arranged in the cooling shell, the partition plates divide the interior of the cooling shell into a plurality of cooling circulation cavities, and a plurality of channel guide plates are fixedly arranged in the cooling circulation cavities;
the cooling circulation cavity is divided into a cooling circulation channel by the plurality of channel guide plates, the left end and the right end of the cooling shell are respectively fixedly provided with a cooling input shell and a cooling liquid discharge shell, the cooling input shell is communicated with one end of the cooling circulation channel, and the cooling liquid discharge shell is communicated with the other end of the cooling circulation channel.
Description: the cooling shell is arranged to cool the magnetic ring and the electrode ring, so that demagnetization of the magnetic ring caused by the increase of the working temperature is avoided.
Preferably, the outer side of the aeration supporting tube is surrounded by a circulation separation tube, and the outer side of the circulation separation tube is surrounded by a biological liquid circulating tube;
the top of the circulation separation pipe and the top of the biological liquid circulating pipe are respectively and hermetically connected with the outer side wall of the aeration supporting pipe, the lower end of the circulation separation pipe is hermetically connected with the outer side wall of the aeration supporting pipe, and the lower end of the biological liquid circulating pipe is fixedly connected with the inner bottom of the biological treatment tank;
the side wall of the biological liquid circulating pipe close to the lower end is provided with a plurality of first communication holes communicated with the inside and the outside, and a plurality of second communication holes communicated with the inside and the outside are uniformly distributed on the side wall of the circulating separation pipe;
the top end of the flow separation pipe is communicated with a plurality of purification exhaust pipes;
a circulation liquid discharge pipe is arranged in the aeration supporting pipe, the top of the circulation liquid discharge pipe is communicated with the space between the circulation separation pipe and the aeration supporting pipe through a plurality of liquid discharge short pipes, and the lower end of the circulation liquid discharge pipe extends to the outside of the biological treatment tank;
the inner side wall of the biological liquid circulating pipe is fixedly provided with a spiral guide plate which extends spirally.
The biological treatment tank is provided with a biological fluid input interface at a position close to the top, and a biological fluid output interface at a position close to the bottom.
Description: the arrangement of the circulation separation pipe and the biological liquid circulation pipe is used for reducing the mutual interference among a plurality of aeration supporting pipes, so that the purification treatment in the biological treatment tank is more uniform, and the problem of insufficient waste gas treatment is avoided.
Preferably, the downstream end of the collecting flow pipe is connected with a dust adsorption pipe, a dust shunt pipe is densely paved and fixed inside the dust adsorption pipe, and a positive charge adsorption sheet and a negative charge adsorption sheet are fixedly arranged on the inner side wall of the dust shunt pipe.
Description: the positive charge adsorption sheet and the negative charge adsorption sheet in the dust adsorption tube can effectively adsorb and remove dust particles in the air.
Compared with the prior art, the invention has the beneficial effects that:
1. firstly, a plurality of catalytic treatment columns are utilized to carry out photocatalysis on the waste gas, so that most organic matters and part of inorganic waste gas in the waste gas can be removed, and under the condition of sufficient sunlight, the waste gas can be subjected to photocatalysis treatment by taking the sunlight as energy, thereby protecting the environment and saving energy;
2. the high-efficiency removal of the organic waste gas is realized by utilizing the discharge breakdown air between the electrode ring and the electrode rod in the low-temperature plasma treatment mechanism under the ionization effect of discharge plasma;
3. finally, the waste gas is introduced into a biological liquid adsorption mechanism, organic waste gas in the waste gas is degraded by utilizing a solution rich in microorganisms, and inorganic waste gas in the waste gas is dissolved, so that the organic waste gas and the inorganic waste gas in the waste gas can be efficiently removed after the whole process treatment.
Drawings
FIG. 1 is a front view of a photocatalytic mechanism according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of a photocatalytic summary flow-through shell according to the present invention;
FIG. 4 is a schematic view of a solar lighting mechanism according to the present invention;
FIG. 5 is a front view of a low temperature plasma processing mechanism according to the present invention;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a schematic view of a split retaining ring according to the present invention;
FIG. 8 is a right side view of FIG. 7;
FIG. 9 is a right side view of the cooling shell of the present invention;
FIG. 10 is a schematic view of the structure of a dust adsorbing tube according to the present invention;
FIG. 11 is a schematic diagram of a biological fluid adsorption mechanism according to the present invention;
FIG. 12 is a top view of FIG. 11;
FIG. 13 is a partial view A of FIG. 11;
FIG. 14 is a partial view B of FIG. 11;
fig. 15 is a schematic diagram of the structural layout of a laboratory in the present invention.
In the drawing the view of the figure, 10-photocatalysis mechanism, 101-catalytic treatment column, 11-circulation guide column, 111-air circulation groove, 112-air discharge pipe, 113-air input pipe, 12-catalytic attachment shell, 13-light source shell, 131-luminous tube, 132-diffuse reflection light column, 133-reflecting plate, 14-solar lighting mechanism, 141-light collecting cover, 142-condensing lens, 143-light guide pipe, 15-photocatalysis gathering circulation shell, 151-first input pipe, 152-first output pipe, 153-supporting partition board, 1531-catalytic column fixing hole, 154-first cavity, 155-second cavity, 20-low temperature plasma treatment mechanism, 201-gathering circulation pipe, 202-diversion fixing ring, 203-insulating board 204-magnetic ring fixing hole, 205-plasma treatment input pipe, 206-plasma treatment output pipe, 207-diversion nose cone, 21-electrode ring, 22-electrode rod, 23-cooling shell, 231-partition plate, 232-cooling circulation cavity, 233-channel diversion plate, 234-cooling circulation channel, 235-cooling input shell, 236-cooling liquid discharge shell, 24-magnetic ring, 25-dust adsorption pipe, 251-dust shunt pipe, 252-positive charge adsorption sheet, 253-negative charge adsorption sheet, 30-biological liquid adsorption mechanism, 31-biological treatment tank, 311-aeration support pipe, 312-biological liquid input interface, 313-biological liquid output interface, 32-aeration ring, 321-aeration input pipe, 33-circulation separation pipe, and, 331-second communication hole, 332-purifying exhaust pipe, 34-biological liquid circulation pipe, 341-first communication hole, 342-spiral guide plate, 90-laboratory, 91-air circulation input pipe, 92-air circulation output pipe, 921-exhaust branch pipe, 93-air delivery pump.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 15, and for convenience of description, the following orientations will be defined: the vertical, horizontal, front, and rear directions described below are identical to the vertical, horizontal, front, and rear directions of the respective front views or the projection relationship of the schematic structure itself.
Example 1:
a purification system for removing laboratory organic waste gas and inorganic waste gas, as shown in fig. 1, 5 and 11, comprises a photocatalysis mechanism 10, a low temperature plasma treatment mechanism 20 and a biological liquid adsorption mechanism 30;
as shown in fig. 1, the photocatalytic mechanism 10 includes a plurality of catalytic treatment columns 101, the catalytic treatment columns 101 include a circulation guide column 11, an air circulation groove 111 extending helically is provided at the outer side of the circulation guide column 11, a catalytic adhesion casing 12 is enclosed and arranged close to the outer side wall of the circulation guide column 11, the catalytic adhesion casing 12 is made of transparent material, and a layer of titanium dioxide coating is adhered to the inner side wall of the catalytic adhesion casing 12;
as shown in fig. 2, the outside of the catalytic adhesion casing 12 is surrounded by a light source casing 13, and a plurality of luminous tubes 131 are fixed on the inner side wall of the light source casing 13;
an air outlet pipe 112 and an air inlet pipe 113 which are communicated with the air circulation groove 111 are respectively and fixedly arranged at two ends of the circulation guide post 11;
as shown in fig. 3, a plurality of catalytic treatment columns 101 are integrally fixed in a photocatalytic summary flow shell 15, a first input pipe 151 and a first output pipe 152 are fixedly arranged on the photocatalytic summary flow shell 15, a supporting partition 153 is fixedly arranged in the photocatalytic summary flow shell 15, the supporting partition 153 divides the inside of the photocatalytic summary flow shell 15 into a first cavity 154 and a second cavity 155, and the first input pipe 151 and the first output pipe 152 are respectively communicated with the first cavity 154 and the second cavity 155;
the support partition 153 has a plurality of catalytic column fixing holes 1531, and the catalytic treatment column 101 is fixed in the catalytic column fixing holes 1531, and the air inlet duct 113 and the air outlet duct 112 communicate with the first cavity 154 and the second cavity 155, respectively.
As shown in fig. 4, the photocatalytic mechanism 10 further includes a solar lighting mechanism 14, the solar lighting mechanism 14 includes a light collecting cover 141, the light collecting cover 141 is a horn-shaped shell structure, a layer of highly reflective coating is provided on the inner side wall of the light collecting cover 141, a condensing lens 142 is fixedly provided in one end of the light collecting cover 141 with a larger opening, and the condensing lens 142 is a fresnel lens;
the light collecting cover 141 other end fixedly connected with light pipe 143, the inboard fixed diffuse reflection light pole 132 that extends from top to bottom that is equipped with of light source casing 13, diffuse reflection light pole 132 have evenly arranged a plurality ofly along light source casing 13 circumference, and diffuse reflection light pole 132 links to each other with light pipe 143 through many light guide fibers, is located the fixed reflector 133 that is equipped with in light source casing 13 diffuse reflection light pole 132 department, and the reflector 133 sets up in diffuse reflection light pole 132 one side of keeping away from light source casing 13 axis.
The diffuse reflection light beam 132 is a solid beam of transparent material, and the outer side surface of the diffuse reflection light beam 132 is frosted.
As shown in fig. 5, the low-temperature plasma processing mechanism 20 comprises a collecting flow pipe 201 and a plurality of diversion fixing rings 202 closely paved in the collecting flow pipe 201, wherein an electrode ring 21 and an electrode rod 22 are arranged in the diversion fixing rings 202, the electrode rod 22 is arranged at the axis of the inner side of the electrode ring 21, and a magnetic ring 24 is fixedly arranged on the outer side of the electrode ring 21;
as shown in fig. 7, an insulating plate 203 is fixedly arranged in the shunt fixing ring 202, a magnetic ring fixing hole 204 is formed in the insulating plate 203, and a magnetic ring 24 is fixed in the magnetic ring fixing hole 204;
as shown in fig. 6, the input end and the output end of the summary flow pipe 201 are fixedly provided with a plasma processing input pipe 205 and a plasma processing output pipe 206, respectively;
the plasma treatment input pipe 205 is in communication with the first output pipe 152 via a pipe;
the cross-sectional area of the plasma processing input tube 205 is 110% of the sum of the inner flow areas of the plurality of electrode rings 21;
the plasma processing input line 205 and the plasma processing output line 206 have the same cross-sectional area.
As shown in fig. 6, the side surfaces of the split-flow fixing ring 202, which are close to the plasma treatment input pipe 205 and the plasma treatment output pipe 206, are fixedly provided with a plurality of guide nose cones 207, the guide nose cones 207 are pyramid-shaped, and the side surfaces of the guide nose cones 207 are concave cambered surfaces.
As shown in fig. 7, an annular cooling shell 23 is fixedly arranged between the electrode ring 21 and the magnetic ring 24, the cooling shell 23 is of a hollow structure, a plurality of partition plates 231 are fixedly arranged in the cooling shell 23, the partition plates 231 divide the interior of the cooling shell 23 into a plurality of cooling circulation cavities 232, and a plurality of channel guide plates 233 are fixedly arranged in the cooling circulation cavities 232;
as shown in fig. 8, the cooling circulation cavity 232 is divided into a cooling circulation channel 234 by a plurality of channel guide plates 233, a cooling inlet shell 235 and a cooling drain shell 236 are fixedly arranged at the left and right ends of the cooling shell 23 respectively, the cooling inlet shell 235 is communicated with one end of the cooling circulation channel 234, and the cooling drain shell 236 is communicated with the other end of the cooling circulation channel 234.
As shown in fig. 10, the downstream end of the collecting flow pipe 201 is connected with a dust adsorbing pipe 25, a dust dividing pipe 251 is fixedly arranged in the dust adsorbing pipe 25 in a close-packed manner, and a positive charge adsorbing sheet 252 and a negative charge adsorbing sheet 253 are fixedly arranged on the inner side wall of the dust dividing pipe 251.
As shown in fig. 11, the biological fluid adsorption mechanism 30 comprises a biological treatment tank 31, wherein a plurality of aeration supporting tubes 311 extending along the vertical direction are fixed in the biological treatment tank 31, a plurality of aeration rings 32 are fixed on the aeration supporting tubes 311, the aeration rings 32 are hollow shells, and a plurality of aeration small holes communicated with the inside and the outside are formed in the aeration rings 32;
a plurality of aeration input pipes 321 are arranged in the aeration support pipe 311, and the aeration input pipes 321 are communicated and connected with the aeration ring 32 one by one;
the aeration input pipe 321 is communicated with the plasma treatment output pipe 206 through a pipeline;
As shown in fig. 13, the aeration supporting tube 311 is surrounded by a circulation partition tube 33, and the outside of the circulation partition tube 33 is surrounded by a biological fluid circulation tube 34;
the top of the circulation separation pipe 33 and the top of the biological liquid circulation pipe 34 are respectively connected with the outer side wall of the aeration supporting pipe 311 in a sealing way, the lower end of the circulation separation pipe 33 is connected with the outer side wall of the aeration supporting pipe 311 in a sealing way, and the lower end of the biological liquid circulation pipe 34 is fixedly connected with the inner bottom of the biological treatment tank 31;
as shown in fig. 14, the side wall of the biological liquid circulation tube 34 near the lower end is provided with a plurality of first communication holes 341 which are communicated with the inside and the outside, and the side wall of the circulation separation tube 33 is uniformly distributed with a plurality of second communication holes 331 which are communicated with the inside and the outside;
a plurality of purifying exhaust pipes 332 are communicated with the top end of the flow separation pipe 33;
a circulation liquid discharge pipe 36 is arranged in the aeration supporting pipe 311, the top of the circulation liquid discharge pipe 36 is communicated with the space between the circulation separation pipe 33 and the aeration supporting pipe 311 through a plurality of liquid discharge short pipes, and the lower end of the circulation liquid discharge pipe 36 extends to the outside of the biological treatment tank 31;
a spiral deflector 342 extending spirally is fixedly arranged on the inner side wall of the biological fluid circulation tube 34.
The biological treatment tank 31 has a biological fluid input port 312 at a position near the top, and the biological treatment tank 31 has a biological fluid output port 313 at a position near the bottom.
The biological treatment tank 31 is filled with a biological treatment liquid rich in microorganisms, the biological treatment liquid is a bacterial solution with the mass percentage of 5%, and the bacteria are nitromonas and nitrosamines which are combined according to the mass ratio of 1:1;
as shown in fig. 15, an air circulation inlet pipe 91, an air circulation outlet pipe 92 and a plurality of exhaust branch pipes 921 are fixedly arranged in a single room of the laboratory 90;
the air circulation input pipe 91 is fixed at a position, close to the top, of the inner side wall of the laboratory 90, the air circulation output pipe 92 is fixed at a position, close to the bottom, of the inner side wall of the laboratory 90, the plurality of exhaust branch pipes 921 are uniformly distributed and fixed on the inner side wall of the laboratory 90 along the vertical direction, and the exhaust branch pipes 921 are communicated with the air circulation output pipe 92;
the air circulation output pipe 92 is connected with an air delivery pump 93, the input end of the air delivery pump 93 is communicated with the air circulation output pipe 92, and the output end of the air delivery pump 93 is communicated and connected with an air input pipe 113 through a pipeline.
Example 2:
the difference from example 1 is that the biological treatment tank 31 contains a biological treatment liquid rich in microorganisms, the biological treatment liquid is a bacterial solution with the mass percentage of 0.5%, and the bacteria are nitromonas, nitrospira, nitrococcus, nitrophyllomyces, nitraria and nitrococcus which are combined according to the mass ratio of 1:3:2:2:1:1;
the cross-sectional area of the plasma processing input tube 205 is 90% of the sum of the inner flow areas of the plurality of electrode rings 21.
Example 3:
the difference from example 1 is that the biological treatment tank 31 contains a biological treatment liquid rich in microorganisms, the biological treatment liquid is a bacterial solution with the mass percentage of 2%, and the bacteria are nitromonas, nitrospira, nitrococcus, nitrophyllomyces, nitraria and nitrococcus which are combined according to the mass ratio of 1:1:2:2:1:1;
the cross-sectional area of the plasma processing input tube 205 is 100% of the sum of the inner flow areas of the plurality of electrode rings 21.
In the practical application process, under the suction and conveying action of the air conveying pump 93, organic waste gas and inorganic waste gas generated in a laboratory enter an exhaust branch pipe 921, the outer side wall of the exhaust branch pipe 921 is provided with a plurality of ventilation holes communicated with the inside and the outside, the waste gas in the exhaust branch pipe 921 is gathered into an air circulation output pipe 92, the waste gas in the air circulation output pipe 92 enters a first input pipe 151 under the conveying action of the air conveying pump 93, and the waste gas in the first input pipe 151 then enters a first cavity 154 in the photocatalytic gathering and circulating shell 15;
the waste gas collected in the first cavity 154 enters the air circulation groove 111 through the air input pipe 113, the illumination of the luminous tube 131 irradiates on the side wall of the catalytic adhesion shell 12, and when the waste gas flows through the air circulation groove 111, the waste gas is fully contacted with the titanium dioxide coating adhered on the inner side wall of the catalytic adhesion shell 12 and is decomposed by utilizing the photocatalysis effect under the illumination effect, so that the purpose of removing organic waste gas in the waste gas is achieved;
the exhaust gas after photocatalysis treatment is discharged through the air discharge pipe 112 and is converged in the second cavity 155 in the photocatalysis collecting and circulating shell 15, the exhaust gas in the second cavity 155 is discharged from the first output pipe 152 and enters the plasma treatment input pipe 205 through a communicated pipeline, in the process that the exhaust gas in the plasma treatment input pipe 205 circulates towards the plasma treatment output pipe 206 through the collecting and circulating pipe 201, the exhaust gas passes through the plurality of electrode rings 21 to electrify the electrode rods 22, potential difference is formed between the electrode rods 22 and the electrode rings 21 so that electric arcs break down the exhaust gas from the electrode rods 22 to the electrode rings 21, the electric arcs axially rotate around the electrode rods 22 under the action of the magnetic field of the magnetic rings 24, and in the process that the exhaust gas passes through the electrode rings 21, the electric arcs between the electrode rods 22 and the electrode rings 21 sweep the exhaust gas at high speed, and the organic matters and inorganic matters in the exhaust gas are ionized and decomposed by utilizing the electric arc energy, so that the purpose of removing the organic exhaust gas and the inorganic exhaust gas in the exhaust gas is achieved;
the biological treatment tank 31 contains a biological treatment liquid rich in microorganisms, wherein the biological treatment liquid is a bacterial solution with the mass percentage of 2%, and the bacteria are nitromonas, nitrospira, nitrococcus, nitrophyllomyces, nitrothorn bacteria and nitrococcus which are combined according to the mass ratio of 1:1:2:2:1:1;
the waste gas after ionization and decomposition treatment in the collecting flow tube 201 is discharged from the plasma treatment output tube 206 and enters the aeration input tubes 321 through the pipelines, the waste gas in each aeration input tube 321 enters the aeration ring 32 respectively, and the waste gas in the aeration ring 32 is discharged to the outside of the aeration ring 32 through the aeration small holes;
the biological treatment liquid enters the biological liquid circulation pipe 34 through the first communication hole 341, the biological treatment liquid in the biological liquid circulation pipe 34 enters the circulation separation pipe 33 through the second communication hole 331, the waste gas discharged from the aeration ring 32 enters the circulation separation pipe 33 and moves upwards along the circulation separation pipe 33, the waste gas in the waste gas recirculation separation pipe 33 fully contacts with the biological treatment liquid in the upward moving process and utilizes bacteria in the biological treatment liquid to decompose and treat organic matters in the waste gas, and meanwhile, inorganic waste gas in the waste gas is dissolved in the biological treatment liquid, so that the purpose of removing organic waste gas and inorganic waste gas in the waste gas is achieved;
before the exhaust gas in the collecting flow pipe 201 is discharged from the plasma treatment output pipe 206 and enters the aeration input pipe 321 through a pipeline, the exhaust gas passes through the dust shunt pipe 251 in the dust adsorption pipe 25, positive charge and negative charge are respectively connected to the positive charge adsorption piece 252 and the negative charge adsorption piece 253, and dust particles in the exhaust gas are adsorbed on the positive charge adsorption piece 252 and the negative charge adsorption piece 253 in the process that the exhaust gas flows through the dust shunt pipe 251 again;
the waste gas treated by the biological treatment liquid obtains clean air, the clean air is conveyed back to the air circulation input pipe 91 through the plurality of purification exhaust pipes 332, a plurality of small holes communicated with the inside and the outside are formed in the air circulation input pipe 91, and the clean air in the air circulation input pipe 91 flows back to the laboratory 90.
Claims (10)
1. A purification system for removing laboratory organic waste gas and inorganic waste gas, which is characterized by comprising a photocatalysis mechanism (10), a low temperature plasma treatment mechanism (20) and a biological liquid adsorption mechanism (30);
the photocatalysis mechanism (10) comprises a plurality of catalysis treatment columns (101), the catalysis treatment columns (101) comprise circulation guide columns (11), air circulation grooves (111) extending spirally are formed in the outer sides of the circulation guide columns (11), a catalysis attachment shell (12) is arranged in a surrounding manner and clinging to the outer side walls of the circulation guide columns (11), the catalysis attachment shell (12) is made of transparent materials, and a layer of titanium dioxide coating is attached to the inner side walls of the catalysis attachment shell (12);
the catalytic adhesion shell (12) is surrounded by a light source shell (13), and a plurality of luminous tubes (131) are fixed on the inner side wall of the light source shell (13);
an air outlet pipe (112) and an air inlet pipe (113) which are communicated with the air circulation groove (111) are respectively and fixedly arranged at two ends of the circulation guide pillar (11);
the low-temperature plasma treatment mechanism (20) comprises a collecting flow pipe (201) and a plurality of diversion fixing rings (202) closely paved in the collecting flow pipe (201), wherein an electrode ring (21) and an electrode rod (22) are arranged in the diversion fixing rings (202), the electrode rod (22) is arranged at the axis of the inner side of the electrode ring (21), and a magnetic ring (24) is fixedly arranged on the outer side of the electrode ring (21);
an insulating plate (203) is fixedly arranged in the shunt fixing ring (202), a magnetic ring fixing hole (204) is formed in the insulating plate (203), and the magnetic ring (24) is fixed in the magnetic ring fixing hole (204);
the biological liquid adsorption mechanism (30) comprises a biological treatment tank (31), wherein a plurality of aeration supporting pipes (311) extending along the vertical direction are fixed in the biological treatment tank (31), a plurality of aeration rings (32) are fixedly arranged on the aeration supporting pipes (311), the aeration rings (322) are hollow shells, and a plurality of aeration small holes communicated with the inside and the outside are formed in the aeration rings (32);
a plurality of aeration input pipes (321) are arranged in the aeration support pipe (311), and the aeration input pipes (321) are communicated and connected with the aeration ring (32) one by one;
the air outlet pipe (112) is communicated with the input end of the collecting flow pipe (201), and the output end of the collecting flow pipe (201) is communicated with the aeration input pipe (321).
2. A purification system for removing laboratory organic and inorganic waste gases according to claim 1, wherein: an air circulation input pipe (91), an air circulation output pipe (92) and a plurality of exhaust branch pipes (921) are fixedly arranged in a single room of the laboratory (90);
the air circulation input pipe (91) is fixed at a position, close to the top, of the inner side wall of the laboratory (90), the air circulation output pipe (92) is fixed at a position, close to the bottom, of the inner side wall of the laboratory (90), a plurality of exhaust branch pipes (921) are uniformly distributed and fixed on the inner side wall of the laboratory (90) along the vertical direction, and the exhaust branch pipes (921) are communicated with the air circulation output pipe (92);
the air circulation output pipe (92) is connected with an air delivery pump (93), the input end of the air delivery pump (93) is communicated with the air circulation output pipe (92), and the output end of the air delivery pump (93) is communicated and connected with the air input pipe (113) through a pipeline.
3. A purification system for removing laboratory organic and inorganic waste gases according to claim 1, wherein: a plurality of catalytic treatment columns (101) are integrally fixed in a photocatalytic summary flow-through shell (15), a first input pipe (151) and a first output pipe (152) are fixedly arranged on the photocatalytic summary flow-through shell (15), a supporting partition plate (153) is fixedly arranged in the photocatalytic summary flow-through shell (15), the inside of the photocatalytic summary flow-through shell (15) is divided into a first cavity (154) and a second cavity (155) by the supporting partition plate (153), and the first input pipe (151) and the first output pipe (152) are respectively communicated with the first cavity (154) and the second cavity (155);
the support baffle (153) is provided with a plurality of catalytic column fixing holes (1531), the catalytic treatment column (101) is fixed in the catalytic column fixing holes (1531), and the air input pipe (113) and the air discharge pipe (112) are respectively communicated with the first cavity (154) and the second cavity (155).
4. A purification system for removing laboratory organic and inorganic waste gases according to claim 1, wherein: the photocatalysis mechanism (10) further comprises a solar lighting mechanism (14), the solar lighting mechanism (14) comprises a light collecting cover (141), the light collecting cover (141) is of a horn-shaped shell structure, a layer of high-reflection coating is arranged on the inner side wall of the light collecting cover (141), and a condensing lens (142) is fixedly arranged at the inner side of the larger end of the opening of the light collecting cover (141);
the light collecting cover is characterized in that a light pipe (143) is fixedly connected to the other end of the light collecting cover (141), a diffuse reflection light column (132) extending up and down is fixedly arranged on the inner side of the light source shell (13), a plurality of diffuse reflection light columns (132) are uniformly distributed along the circumferential direction of the light source shell (13), the diffuse reflection light columns (132) are connected with the light pipe (143) through a plurality of light guide fibers, a light reflecting plate (133) is fixedly arranged at the diffuse reflection light column (132) in the light source shell (13), and the light reflecting plate (133) is arranged on one side, far away from the axis of the light source shell (13), of the diffuse reflection light column (132).
5. A purification system for removing laboratory organic and inorganic waste gases according to claim 1, wherein: the condensing lens (142) is a Fresnel lens.
6. A purification system for removing laboratory organic and inorganic waste gases according to claim 1, wherein: the input end and the output end of the summarizing flow pipe (201) are respectively fixedly provided with a plasma treatment input pipe (205) and a plasma treatment output pipe (206);
the cross-sectional area of the plasma treatment input pipe (205) is 90% -110% of the sum of the inner side flow areas of the electrode rings (21);
the cross-sectional areas of the plasma treatment input pipe (205) and the plasma treatment output pipe (206) are the same.
7. A purification system for removing laboratory organic and inorganic waste gases according to claim 6, wherein: the side that reposition of redundant personnel solid fixed ring (202) is close to plasma treatment input tube (205) and be close to plasma treatment output tube (206) is all fixed and is equipped with a plurality of water conservancy diversion nose awl (207), water conservancy diversion nose awl (207) are pyramid shape, water conservancy diversion nose awl (207) side is the cambered surface of indent.
8. A purification system for removing laboratory organic and inorganic waste gases according to claim 1, wherein: an annular cooling shell (23) is fixedly arranged between the electrode ring (21) and the magnetic ring (24), the cooling shell (23) is of a hollow structure, a plurality of partition plates (231) are fixedly arranged inside the cooling shell (23), the partition plates (231) divide the interior of the cooling shell (23) into a plurality of cooling circulation cavities (232), and a plurality of channel guide plates (233) are fixedly arranged inside the cooling circulation cavities (232);
the cooling circulation cavity (232) is divided into a cooling circulation channel (234) by the plurality of channel guide plates (233), a cooling input shell (235) and a cooling liquid discharge shell (236) are respectively and fixedly arranged at the left end and the right end of the cooling shell (23), the cooling input shell (235) is communicated with one end of the cooling circulation channel (234), and the cooling liquid discharge shell (236) is communicated with the other end of the cooling circulation channel (234).
9. A purification system for removing laboratory organic and inorganic waste gases according to claim 1, wherein: a circulation separation pipe (33) is surrounded on the outer side of the aeration supporting pipe (311), and a biological liquid circulation pipe (34) is surrounded on the outer side of the circulation separation pipe (33);
the top of the circulation separation pipe (33) and the top of the biological liquid circulating pipe (34) are respectively and hermetically connected with the outer side wall of the aeration supporting pipe (311), the lower end of the circulation separation pipe (33) is hermetically connected with the outer side wall of the aeration supporting pipe (311), and the lower end of the biological liquid circulating pipe (34) is fixedly connected with the inner bottom of the biological treatment tank (31);
the side wall of the biological liquid circulating pipe (34) close to the lower end is provided with a plurality of first communication holes (341) communicated with the inside and the outside, and a plurality of second communication holes (331) communicated with the inside and the outside are uniformly distributed on the side wall of the circulating separation pipe (33);
a plurality of purifying exhaust pipes (332) are communicated with the top end of the circulating separation pipe (33);
a circulation liquid discharge pipe (36) is arranged in the aeration supporting pipe (311), the top of the circulation liquid discharge pipe (36) is communicated with a space between the circulation separation pipe (33) and the aeration supporting pipe (311) through a plurality of liquid discharge short pipes, and the lower end of the circulation liquid discharge pipe (36) extends to the outside of the biological treatment tank (31);
a spiral guide plate (342) extending spirally is fixedly arranged on the inner side wall of the biological liquid circulating pipe (34);
the biological treatment tank (31) is provided with a biological fluid input interface (312) at a position close to the top, and the biological treatment tank (31) is provided with a biological fluid output interface (313) at a position close to the bottom.
10. A purification system for removing laboratory organic and inorganic waste gases according to claim 1, wherein: the collecting flow pipe (201) is characterized in that the downstream end of the collecting flow pipe is connected with a dust adsorption pipe (25), a dust shunt pipe (251) is fixedly arranged in the dust adsorption pipe (25) in a closely-laid mode, and a positive charge adsorption sheet (252) and a negative charge adsorption sheet (253) are fixedly arranged on the inner side wall of the dust shunt pipe (251).
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| KR20100124967A (en) * | 2009-05-20 | 2010-11-30 | 주식회사 에이피시스 | Apparatus for generating plasma |
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| CN116025987B (en) | 2023-09-05 |
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