CN210674595U - Activated carbon adsorption device and air purification equipment with same - Google Patents

Abstract

The utility model discloses an active carbon adsorption device and have device's air purification equipment belongs to air purification technical field. The active carbon adsorption device fills granular active carbon in the holes of the active carbon sponge, and the active carbon sponge is used as a supporting framework, so that the granular active carbon can be uniformly distributed and fixed at a relatively stable position, and the modules with different sizes can be prepared according to actual needs. The air purification equipment with the active carbon adsorption device has the advantages that the active carbon adsorption device is arranged at the air inlet, and the particulate matters and the volatile organic compounds are partially removed after the air passes through the active carbon adsorption device. Then, the virus and bacteria are killed through a purification cavity provided with a dual-wavelength ultraviolet lamp, and meanwhile, the molecular pollutants in the air are decomposed and degraded through an advanced oxidation technology; finally, the molecular pollutants in the air are degraded in an activated carbon adsorption device. Finally, the purified clean gas is discharged out of the purifier under the driving of the fan.

Description

Activated carbon adsorption device and air purification equipment with same

Technical Field

The utility model belongs to the technical field of air purification, concretely relates to active carbon adsorption device and have device's air purification equipment.

Background

With the enhancement of environmental awareness of people, the problem of air pollution in the vehicle arouses wide attention of people, and no matter a new vehicle or an old vehicle can generate certain air pollutants to bring harm to human health. Investigation showed that 41.6% of people selected to use activated carbon for air purification. In air cleaning equipment, activated carbon is often used as an adsorbent, which has not only physical adsorption but also chemical adsorption, and the raw material is usually coal or coconut shell, and the components include various carbonaceous substances. However, the efficiency of the fiber or sponge attached to the activated carbon is lower than that of the granular activated carbon, which is not easily immobilized.

Currently, when granular activated carbon is used, the methods used are roughly divided into two categories: a plurality of small units are made of plastic and the like, and then are covered by materials with small wind resistance; or directly encapsulating the activated carbon with a porous material. In contrast, in the multi-unit method, a plastic frame with lattices needs to be manufactured in the manufacturing process, and meanwhile, the holes on each frame need to be provided with corresponding fine meshes to fix the activated carbon in each hole, so the manufacturing requirement is high; the direct packaging method is to make a space on the article and fill the space with the active carbon, and the fixed block-shaped active carbon is difficult to meet the requirements, so that the active carbon is not easy to modularize; meanwhile, the activated carbon can be saturated after long-term working, and the adsorption capacity is greatly reduced.

Disclosure of Invention

In order to solve the above problems, the present invention provides an activated carbon adsorption device and an air purification apparatus having the same, which has a reasonable structural design and a low manufacturing cost; the active carbon adsorption device can achieve a good removal effect on macromolecular pollutants, micromolecular pollutants and particulate matters; the air purification equipment can treat various pollutants, can regenerate and keep good adsorption capacity.

The utility model discloses a following technical scheme realizes:

the utility model discloses an active carbon adsorption device and air purification equipment with the same, which comprises a shell, active carbon sponge and granular active carbon; the shell is provided with a plurality of through holes, the activated carbon sponge is arranged in the shell, a coarse filtration membrane is arranged between the shell and the activated carbon sponge, and the granular activated carbon is filled in the holes of the activated carbon sponge.

Preferably, the particle size of the granular activated carbon is less than 75% of the pore size of the activated carbon sponge.

Preferably, the activated carbon sponge is Belger activated carbon sponge No. II.

Preferably, the granular activated carbon is gold coconut shell activated carbon.

The utility model discloses an air purification device with the active carbon adsorption device, which comprises a box body, wherein the box body is internally divided into an air outlet cavity at two ends and a purification cavity at the middle part through a grid plate; active carbon cotton is arranged between the air outlet cavity and the purification cavity; a plurality of ultraviolet lamps are arranged in the purification cavity, and the ultraviolet lamps can emit ultraviolet rays with double wavelengths of 185nm and 254 nm; an air inlet is arranged on the outer wall of the purification cavity, and a plurality of activated carbon adsorption devices are arranged on the air inlet; the outer wall of the air outlet cavity is provided with an air outlet, the inner part of the air outlet cavity is provided with a plurality of fans, and the fans enable air to enter the box body from the air inlet and to be discharged from the air outlet.

Preferably, the inner wall of the box body between the air outlet cavity and the purification cavity is provided with a limiting bulge, and the activated carbon cotton is arranged between the grid plate and the limiting bulge.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model discloses an active carbon adsorption device fills granule active carbon in the hole of active carbon sponge, and the active carbon sponge can make granule active carbon evenly distributed as supporting skeleton, fixes in the position of relative stability, can prepare into not unidimensional module according to actual need. The attached ordinary active carbon on the active carbon sponge can adsorb macromolecular pollutants such as benzene, and the granule active carbon can adsorb micromolecular pollutants such as formaldehyde, and the coarse filter membrane can filter the granule pollutant. The three are combined, so that the air purifier has a good air purifying effect, is simple in structure, and can be widely applied to various types of air purifying equipment.

Furthermore, the particle size of the granular activated carbon is less than 75% of the pore size of the activated carbon sponge, so that the granular activated carbon cannot easily fall out by utilizing the structure of the activated carbon sponge while ensuring smooth loading; in addition, guarantee to leave suitable clearance each other and guarantee that the air can smoothly pass through, make purification efficiency maximize, avoid the active carbon granule undersize simultaneously and appear getting inhomogeneous phenomenon after removing.

Furthermore, the activated carbon sponge adopts Belger activated carbon sponge No. II, and compared with other activated carbon sponges, the Belger activated carbon sponge No. II has stronger air purification capacity and ozone removal capacity.

Furthermore, the granular activated carbon adopts gold coconut shell activated carbon, which is the most effective in removing benzene substances, and compared with other activated carbon, the granular activated carbon has the first purification efficiency on air pollutants such as benzene, toluene, chlorobenzene of xylene and the like. Although the capability of removing ozone and formaldehyde is weak, the comprehensive purification capability is strong.

The utility model discloses an air purification equipment with above-mentioned active carbon adsorption device establishes active carbon adsorption device at the air inlet, and the air carries out the part through active carbon adsorption device back particulate matter and volatile organic compounds and gets rid of. Then, the virus and bacteria are killed through a purification cavity provided with a dual-wavelength ultraviolet lamp, and meanwhile, the molecular pollutants in the air are decomposed and degraded through an advanced oxidation technology; the ultraviolet lamp is a double-wavelength ultraviolet lamp capable of emitting light of 185nm and 254nm, and pollutants in the air are degraded by high-energy photons; the 185nm ultraviolet photons can convert oxygen in the air into ozone, and the 254nm ultraviolet photons can decompose the ozone into free radicals to complete the degradation of pollutants. Ozone in the process is also a pollutant, and the activated carbon cotton can well prevent the ozone from escaping, so that the ozone is degraded on the surface of the activated carbon layer to form oxygen atoms and decompose organic matters adsorbed on the surface of the activated carbon, thereby avoiding the adsorption saturation problem of the activated carbon and avoiding the frequent replacement of an activated carbon adsorption device and the activated carbon cotton.

Finally, the molecular pollutants in the air are degraded in an activated carbon adsorption device. Finally, the purified clean gas is discharged out of the purifier under the driving of the fan. The air outlet cavities are arranged at the two ends of the box body, so that gas entering the box body can uniformly enter the air outlet cavities at the two ends respectively, the purification efficiency is high, and the problem that when one end of the box body is provided with the air outlet cavities independently, dead zones with unsmooth gas circulation exist at the other end, and the working efficiency of the air purification equipment is influenced can be avoided.

Furthermore, fix the activated carbon cotton through grid plate and spacing arch, avoid receiving the fan and adsorb and arouse the displacement.

Drawings

Fig. 1 is a schematic structural view of an activated carbon adsorption device of the present invention;

FIG. 2 is a schematic view of the internal structure of the air purification device of the present invention;

fig. 3 is a schematic view of the appearance structure of the air purification device of the present invention;

fig. 4 is a schematic view of the working flow of the air purification device of the present invention;

FIG. 5 is a toluene adsorption test result chart of the air purification device of the present invention;

FIG. 6 is a graph showing the results of the particle adsorption test of the air purification apparatus of the present invention;

fig. 7 is a result diagram of the formaldehyde adsorption test of the air purification device of the present invention.

In the figure: 1-shell, 2-activated carbon sponge, 3-granular activated carbon, 4-coarse filter membrane, 5-box body, 5-1-air outlet cavity, 5-2-purification cavity and 5-3-grid plate; 6-air inlet, 7-air outlet, 8-blower, 9-ultraviolet lamp, 10-active carbon cotton.

Detailed Description

The invention will be described in further detail with reference to the following drawings and specific examples, which are intended to illustrate and not to limit the invention:

the utility model discloses the active carbon sponge 2 that uses in indicates the air purification filtering material who adopts polymer bonding material to carry high-quality, the stronger likepowder catalytic activity charcoal of adsorption performance to attach and make on polyurethane foaming carrier. The carbon content is about 30-50%, and the product has good adsorption property, and can be used for air purification to remove volatile organic compounds and harmful substances such as mote, smoke, odor, formaldehyde, etc.

The granular activated carbon 3 used in the utility model is mainly prepared by taking coconut shells, fruit shells and coal as raw materials and carrying out fine processing through a series of production processes. The method is widely applied to the fields of drinking water, industrial water, wine brewing, waste gas treatment, decolorization, drying agents, gas purification and the like. High-quality anthracite is selected as a raw material, and is refined and processed by an advanced process, and the appearance of the anthracite is black unshaped particles; the composite material has the characteristics of developed pore structure, good adsorption performance, high mechanical strength, easy repeated regeneration, low manufacturing cost and the like; the method is used for the purification of toxic gas, the treatment of waste gas, the purification treatment of industrial and domestic water, the recovery of solvent and the like.

As shown in fig. 1, the activated carbon adsorption device of the present invention comprises a housing 1, activated carbon sponge 2 and granular activated carbon 3; be equipped with a plurality of through-holes on the shell 1, activated carbon sponge 2 establishes in shell 1, is equipped with coarse filtration membrane 4 between shell 1 and the activated carbon sponge 2, and granule activated carbon 3 fills in the downthehole of activated carbon sponge 2, and the particle diameter of granule activated carbon 3 is less than 75% of activated carbon sponge 2 aperture. The activated carbon sponge 2 can adopt Belger activated carbon sponge II, and the granular activated carbon 3 can adopt gold coconut shell activated carbon.

Referring to fig. 2 and 3, the air purification device with the activated carbon adsorption device of the present invention comprises a box body 5, wherein the box body 5 is divided into an air outlet cavity 5-1 at two ends and a purification cavity 5-2 at the middle part by a grid plate 5-3, and the grid plate 5-3 is provided with grids which are uniformly distributed; the activated carbon cotton 10 is arranged between the air outlet cavity 5-1 and the purification cavity 5-2, the inner wall of the box body 5 between the air outlet cavity 5-1 and the purification cavity 5-2 is provided with a limit bulge, and the activated carbon cotton 10 is arranged between the grid plate 5-3 and the limit bulge. The purifying chamber 5-2 is internally provided with a plurality of ultraviolet lamps 9, and the ultraviolet lamps 9 emit ultraviolet rays with the wavelength of 185 nm. An air inlet 6 is arranged on the outer wall of the purification cavity 5-2, and a plurality of activated carbon adsorption devices are arranged on the air inlet 6; an air outlet 7 is arranged on the outer wall of the air outlet cavity 5-1, a plurality of fans 8 are arranged inside the air outlet cavity 5-1, and the fans 8 enable air to enter the box body 5 from the air inlet 6 and to be discharged from the air outlet 7.

As shown in fig. 4, for the utility model discloses an air purification equipment work flow:

the polluted air firstly passes through an activated carbon adsorption device and is treated by a coarse filter membrane and an activated carbon layer, and particulate matters and volatile organic compounds in the air are partially removed. Then, the ultraviolet rays with two wavelengths are combined through a cavity provided with a dual-wavelength ultraviolet lamp, pollutants in the air are degraded by high-energy photons, the dual-wavelength ultraviolet lamp respectively emits ultraviolet rays with the wavelengths of 185nm and 254nm, the 185nm ultraviolet photons can convert oxygen in the air into ozone, and the 254nm ultraviolet photons can decompose the ozone into free radicals, so that the pollutants are degraded. The specific process is as follows: the 185nm photon and the oxygen molecule are impacted to form ozone molecules, the ozone molecules are impacted by the 254nm photon to form free radicals, and the free radicals react with compounds in the air to generate various free radicals. 185nm photons and ozone can also directly impact compounds in the air to generate various radicals. Thus, the 185nm and 254nm photons actually induce the formation of a mixture of 185nm photons, radicals, ozone, etc. active factors that can degrade chemical contaminants, and in this mixed system, the contaminants are eventually degraded or decomposed.

Finally, the molecular pollutants in the air are degraded on the surface of the activated carbon. During the purification process, 185nm ultraviolet light produces ozone, which participates in and promotes the advanced oxidation process. However, ozone is also a pollutant, and the activated carbon cotton on the inner side of the fan can well prevent the ozone from escaping, so that the ozone is degraded on the surface of the activated carbon layer to form oxygen atoms and decompose organic matters adsorbed on the surface of the activated carbon, and the problem of adsorption saturation of the activated carbon can be avoided. Finally, the purified clean gas is discharged out of the purifier under the driving of the fan.

The following does the utility model discloses an air purification equipment's air purification effect verifies:

and (3) model machine manufacturing:

cutting the macroporous sponge activated carbon with the pore diameter of 2mm into a rectangle of 25 x 35cm, and filling the rectangle with activated carbon particles with the particle diameter of 1mm to form an activated carbon layer. Two coarse filter membranes and two iron nets with the same area and size are cut and placed up and down, and the coarse filter membranes are close to the activated carbon layer. And the activated carbon adsorption device module consisting of the activated carbon layer, the coarse filter membrane and the iron net is fixed on the plastic sealing box body by sealant. The air purification equipment model machine mainly comprises three parts: fan, sealed box and active carbon layer. As shown in fig. 4, the blower is used for driving the fan to cause the air in the box to flow, so that the contact area between the air and the activated carbon layer is increased, and the efficiency of the air purification sample machine is improved. The active carbon layer is equivalent to a filter element, has a honeycomb structure, and can adsorb most particles, odorous gases and the like in the air.

Toluene purification test:

1. putting an air purification equipment prototype in a test box;

2. using a pipette to suck 10 ml of 1 percent toluene solution, injecting the solution onto a paper sheet, and sealing a test chamber;

3. after the solution volatilizes for two minutes, starting an air purification equipment prototype, and setting a fan to be in a closed state;

4. keeping the state of equipment in the sealed test box unchanged, and sampling sample gas every 1 minute;

5. injecting the collected gas into a gas phase spectrum mass spectrometer for analysis; and simultaneously carrying out mechanical shaking and oscillation, and observing whether the phenomenon that the movement of the activated carbon particles becomes uneven occurs or not by light.

The setting of the blower in the step 3 is changed into the minimum air volume and the maximum air volume in turn, and the result obtained by repeating the above steps is shown in fig. 5, when the blower has the maximum air volume, the concentration of the toluene is rapidly reduced and is stabilized to be about 0.2 within about 5 minutes; when the fan has the minimum air quantity, the concentration of the toluene is slightly slowly reduced and is stabilized to be about 0.2 in about 10 minutes; when the blower was turned off, the toluene concentration dropped very slowly, to around 0.2 in about 25 minutes. As explained above, the model machine has obvious toluene purification effect. Meanwhile, after mechanical shaking and oscillation, the phenomenon that the movement of the activated carbon particles becomes uneven does not occur in light observation, which shows that the device can effectively fix the granular activated carbon.

Particle purification test:

1. putting an air purification equipment prototype in a test box;

2. injecting a gas containing certain amounts of PM2.5 and PM10 into the test chamber by using a gas sampler, and closing the test chamber;

3. after the gas is mixed for two minutes, starting an air purification equipment prototype, and setting a fan to be in a closed state;

4. keeping the state of equipment in the sealed box body unchanged, and sampling the sample gas once every 1 minute;

5. analyzing the collected gas by using a PM2.5/PM10 detector; and simultaneously carrying out mechanical shaking and oscillation, and observing whether the phenomenon that the movement of the activated carbon particles becomes uneven occurs or not by light.

Changing the fan setting in the step 3 into the maximum air volume, repeating the steps to obtain a result as shown in fig. 6, wherein when the fan has the maximum air volume, the concentration of the particulate matters is rapidly reduced in a straight line and is reduced to 2 within about 1-2 minutes; when the fan was turned off, the particulate concentration dropped very slowly, remaining around 10 after 15 minutes. The above shows that the model machine has obvious effect of purifying particles. Meanwhile, after mechanical shaking and oscillation, the phenomenon that the movement of the activated carbon particles becomes uneven does not occur in light observation, which shows that the device can effectively fix the granular activated carbon.

Formaldehyde purification test:

1. putting an air purification equipment prototype in a test box;

2. using a pipette to suck 10 ml of 1% formaldehyde solution, injecting the formaldehyde solution onto a paper sheet, and sealing a test chamber;

3. after the solution volatilizes for two minutes, starting an air purification equipment prototype, and setting a fan to be in a closed state;

4. keeping the state of equipment in the sealed box body unchanged, and sampling the sample gas once every 1 minute;

5. injecting the collected gas into a gas phase spectrum mass spectrometer for analysis; simultaneously carrying out mechanical shaking and oscillation, and then observing whether the phenomenon that the movement of the activated carbon particles becomes uneven occurs or not by light;

changing the fan setting in the step 3 into the minimum air volume and the maximum air volume in sequence, repeating the steps to obtain the result shown in figure 7, wherein when the fan has the maximum air volume, the concentration of the formaldehyde is rapidly reduced to be less than 0.2 within about 5 minutes; when the fan has the minimum air quantity, the formaldehyde concentration reduction speed is slightly slowed down and is reduced to below 0.2 in about 7 minutes; when the fan is closed, the formaldehyde concentration is reduced very slowly, and the same effect can be achieved within about 40 minutes. As shown above, the model machine has obvious formaldehyde purification effect. Meanwhile, after mechanical shaking and oscillation, the phenomenon that the movement of the activated carbon particles becomes uneven does not occur in light observation, which shows that the device can effectively fix the granular activated carbon.

It should be noted that the above description is only one of the embodiments of the present invention, and all equivalent changes made by the system described in the present invention are included in the protection scope of the present invention. The technical field of the present invention can be replaced by other embodiments described in a similar manner, without departing from the structure of the present invention or exceeding the scope defined by the claims, which belong to the protection scope of the present invention.

Claims (6)

1. An activated carbon adsorption device is characterized by comprising a shell (1), activated carbon sponge (2) and granular activated carbon (3); the shell (1) is provided with a plurality of through holes, the activated carbon sponge (2) is arranged in the shell (1), a coarse filtration membrane (4) is arranged between the shell (1) and the activated carbon sponge (2), and the granular activated carbon (3) is filled in the holes of the activated carbon sponge (2).

2. Activated carbon adsorption unit according to claim 1, characterized in that the particle size of the granular activated carbon (3) is less than 75% of the pore size of the activated carbon sponge (2).

3. The activated carbon adsorption unit of claim 1, wherein the activated carbon sponge (2) is Beluger activated carbon sponge No. II.

4. Activated carbon adsorption unit according to claim 1, characterized in that the granular activated carbon (3) is gold coconut shell activated carbon.

5. An air purification device with the activated carbon adsorption device of any one of claims 1 to 4, characterized by comprising a box body (5), wherein the interior of the box body (5) is divided into an air outlet cavity (5-1) at two ends and a purification cavity (5-2) in the middle by a grid plate (5-3); an activated carbon cotton (10) is arranged between the air outlet cavity (5-1) and the purification cavity (5-2);

a plurality of ultraviolet lamps (9) are arranged in the purification cavity (5-2), and the ultraviolet lamps (9) can emit ultraviolet light with double wavelengths of 185nm and 254 nm; an air inlet (6) is arranged on the outer wall of the purification cavity (5-2), and a plurality of activated carbon adsorption devices are arranged on the air inlet (6);

an air outlet (7) is formed in the outer wall of the air outlet cavity (5-1), a plurality of fans (8) are arranged inside the air outlet cavity (5-1), and the fans (8) enable air to enter the box body (5) from the air inlet (6) and to be discharged from the air outlet (7).

6. The air purification apparatus as claimed in claim 5, wherein a limit protrusion is provided on an inner wall of the case (5) between the air outlet chamber (5-1) and the purification chamber (5-2), and the activated carbon wool (10) is provided between the grid plate (5-3) and the limit protrusion.

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