CN203370447U - Integrated purifier for whole industrial plant - Google Patents

Abstract

The integrated purifier for the overall industrial plant belongs to the field of air purification technology. The design process of the integrated purifier for the overall industrial plant (as shown in Figure 1) is: inlet airflow, filter cartridge, primary filter, low-temperature plasma reaction filter, medium-efficiency filter, first-stage ultraviolet light synergistic TiO ₂ catalytic device, second-stage ultraviolet light synergistic TiO ₂ catalytic device, low-temperature plasma reactor, high-efficiency filter, fan, outlet airflow; harmful gases in the plant are integrated and purified The purification of the device can completely remove the harmful smoke and dust, and directly discharge it into the environment of the factory building, realizing the recycling and purification of the airflow. At the same time, the design air volume of the integrated purification device is 3000-5000m ³ /h, so that it can meet the requirements of large space and large air volume of the overall industrial plant; and the device has a good layering effect during the purification process, which can meet the requirements of displacement ventilation .

Description

Integrated purifier for the whole industrial plant

technical field

The utility model belongs to the field of air purification. The integrated purifier is used for the treatment of pollutants in the overall industrial workshop. The main pollutants to be treated include inorganic pollutants, organic pollutants, TVOC, welding smoke and the like.

Background technique

The purification methods commonly used in the overall industrial plant are as follows:

Physical filtration method: mainly through interception effect, gravity effect, inertial effect, diffusion effect, electrostatic effect and so on. Photocatalytic oxidation: It is a chemical reaction carried out through a photochemical reaction mechanism under the action of light. The use of photocatalytic oxidation technology to oxidize and decompose harmful substances into harmless substances has the advantages of low energy consumption, simple operation and no secondary pollution. The disadvantage is that the degradation efficiency is relatively low, and the post-treatment of secondary products is difficult; as the use time increases, the activity of the catalyst gradually decreases, and the catalyst needs to be regenerated in time; the commonly used ultraviolet light source will damage the human body mechanism. The low-temperature plasma purification method mainly uses high-frequency and high-voltage currents to generate ion active substances, and through chemical reactions with gas pollutants at normal temperature and pressure, completes the destruction and degradation of volatile organic pollutants and improves the purification effect; the disadvantages are It is easy to produce secondary pollution, and the treatment of secondary pollutants is more complicated and expensive, and the energy utilization efficiency is relatively low. There are some deficiencies in the above purification technologies, and the purification efficiency is not very high. In order to make up for the deficiencies of each, the utility model proposes an integrated purifier for an overall industrial plant.

Utility model content

The purpose of this utility model is to provide an integrated purifier for an overall industrial plant. The integrated purifier is an air duct structure, and a purification device is arranged in the air duct. Its design process is: inlet airflow, filter cartridge, primary filter, low temperature Plasma reactor, medium-efficiency filter, first-stage ultraviolet light synergistic TiO ₂ catalytic device, second-stage ultraviolet light synergistic TiO ₂ catalytic device, low-temperature plasma reactor, high-efficiency filter, fan, outlet airflow; harmful gases in the plant pass through The purification of the integrated purification device can completely remove the harmful smoke and dust, and directly discharge it into the factory environment, realizing the recycling and purification of the airflow. At the same time, the design air volume of the integrated purification device is 3000-5000m ³ /h, so that it can meet the requirements of large space and large air volume of the overall industrial plant; and the device has a good layering effect during the purification process, which can meet the requirements of displacement ventilation .

In order to achieve the above purpose, the technical solution of the utility model is to provide an integrated purifier for an overall industrial plant that combines filter cartridge purification technology, low-temperature plasma, and _TiO2 synergistic ultraviolet photocatalyst integrated purification technology. It is mainly composed of fan outlet, sampling section, high-efficiency filter, low-temperature plasma reactor, _TiO2 loading section, ultraviolet photocatalyst section, _TiO2 loading section, medium-efficiency filter, low-temperature plasma reactor, and primary-effect filter cartridge treatment section. . Among them, the filter cartridge is composed of 9 cylindrical filter cartridges, the radius of the filter cartridge is 175mm, the pleat height is 35mm, the pleat angle is 12 degrees, and the number of folds is 155. The layout method is uniform, and the design wind speed is 0.3-0.8m/s; the low-temperature plasma reactor is composed of a regular hexagon with a bottom side length of 50mm and a honeycomb body with a length of 200mm. The number is 129, and the design voltage is 15KV , the current is 0.5A. The layout adopts honeycomb design and staggered arrangement; in order to effectively purify gas pollutants and control the production of secondary products, the integrated device adopts the design of the above two sets of electric fields in series; the TiO ₂ load device adopts a fixed bed design, and the number is 9 One, arranged evenly according to the size of the device; the high-efficiency filter adopts a high-efficiency filter with a partition; the design parameter is that the transmittance ≤ 0.1% (ie, the efficiency ≥ 99.9%) or the counting transmittance of particles with a particle size ≥ 0.1 μm ≤ 0.001 % (that is, efficiency ≥ 99.999%); the induced draft fan adopts a centrifugal fan with an air volume of 3000-5000m3/h, and the installation method adopts a detachable design, which is arranged at the outlet end with a negative pressure design; all integrated sections adopt a drawer design, There are inspection doors for each section of the device, which is convenient for disassembly and inspection; the device is anti-corrosion and sealed, and the device is sealed with glass silica gel. 0.5mm thick sealing gaskets are installed at the inspection doors, and shock-absorbing sealing gaskets are installed inside and outside all fixing screws.

The beneficial effects of the utility model are: the integrated purifier of the overall industrial plant combines filter cartridge purification technology, low-temperature plasma, and _TiO2 synergistic ultraviolet photocatalyst technology as a whole, and overcomes the shortcomings of single purifier with single treatment effect and low purification efficiency; Effective treatment of welding fume, TVOC, organic polluting gas, inorganic polluting gas, etc.; at the same time, the chemical reaction conditions of harmful gases are milder and the reaction effect is more thorough through TiO ₂ synergistic effect of ultraviolet photocatalyst. The production of products, so that the treated gas can be directly recycled.

Description of drawings:

Figure 1. The flow chart of the integrated purifier for the overall industrial plant;

Figure 2. Plane view of cellular electric field;

Fig. 3. Sectional view of honeycomb electric field;

Figure 4. Large sample diagram of TiO ₂ load plate design;

Figure 5. Structural diagram of the filter cartridge.

In Figure 1, 1. Fan outlet; 2. Sampling section; 3. High-efficiency filter; 4. Low-temperature plasma reactor; 5. _TiO2 loading section; 6. _UV photocatalyst section; 9. Low temperature plasma reactor; 10. Primary filter cartridge treatment section.

11, positive electrode in Fig. 2; 12, negative electrode.

13, negative pole in Fig. 3; 14, pulse generator; 15, leaf spring contact; 16, insulating ceramics; 17, positive pole; 18, discharge rod supporting ring; 19, discharge rod; 20, quartz tube.

22 in Fig. 4, TiO ₂ film support plate.

In Fig. 5, 23, a—fold angle; 24, b—fold height; 25, r—radius.

Detailed ways

As shown in Figure 1, the integrated purifier for the designed overall industrial plant is designed. The overall structure of the device adopts a stainless steel rectangular design, and the layout can be vertical or horizontal. When applied to the overall factory building, the device can be placed indoors or outdoors. When it is installed outdoors, it needs to be connected with an air duct. The purification process of the device is designed in stages based on the idea of "coarse first, then fine, first easy and then difficult". The specific treatment method is: the polluted gas enters the integrated purifier used in the overall industrial plant through the entrance, and the large particles above PM10 and welding fume are first intercepted by the filter cartridge to complete the first filtration, and the particulate matter generated by the filter is collected by the dust collection drawer. Particles below PM10 and organic and inorganic pollutant gases enter the low-temperature plasma reactor and cooperate with the ultraviolet light and TiO ₂ section to generate a series of chemical reactions through high-voltage discharge, so that the particles are enriched at the dust collection end, and organic and inorganic harmful gases are converted into harmless products. , CO ₂ and H ₂ O; in order to completely purify the toxic gas, this section adopts a two-stage design, which can make the purification effect of the polluted gas reach more than 90%; finally, it passes through a high-efficiency filter to capture the particle dust below 0.5um and various suspended solids; the purified clean gas is drawn out through the induced draft fan and released into the overall plant environment.

Claims (6)

1. whole industrial premises integrated purifying device, this integrated purifying device is air channel structure, the purified treatment device is set in air channel, it is characterized in that: described whole industrial premises integrated purifying device is mainly by fan outlet end, sampling section, high efficiency particulate air filter, low-temperature plasma reactor, TiO ₂load patch, ultraviolet light catalyst section, TiO ₂load patch, medium effeciency filter, low-temperature plasma reactor, primarily efficient filter cylinder processing section form, dusty gas enters whole industrial premises integrated purifying device by entrance, at first the above bulky grain of PM10 and weld fumes etc. are tackled by primarily efficient filter cylinder processing section, complete for the first time and filter, filter the particle produced and collected by the control of dust drawer; The following particle of PM10 and organic and inorganic dusty gas enter low-temperature plasma reactor cooperative with ultraviolet radiation and TiO ₂section, produce series of chemical by electrion, makes particle be enriched in the control of dust end, and the organic or inorganic pernicious gas is converted into harmless product, CO ₂and H ₂o; Finally, the air of processing is through high efficiency particulate air filter, for trapping particle dust and the various suspension below 0.5um; Clean air after purification is discharged into the whole factory building environment from the fan outlet end again by air-introduced machine.

2. whole industrial premises integrated purifying device according to claim 1, it is characterized in that: described filter cylinder is comprised of 9 cylindrical filtration cartridges, and the radius of filter cylinder is 175mm, and the pleat height is 35mm, and the pleat angle is 12 degree, the Zhe number is 155.

3. whole industrial premises integrated purifying device according to claim 1, it is characterized in that: the honeycomb ceramics that the regular hexagon that described honeycomb electric field is 50mm by section, length are 200mm forms, and quantity is 129, and design voltage is 15KV, and electric current is 0.5A.

4. whole industrial premises integrated purifying device according to claim 1, is characterized in that: described TiO ₂mode of loading is fixed-bed design, and quantity is 9.

5. whole industrial premises integrated purifying device according to claim 1, is characterized in that: the design of described integrating device group section employing drawer type, easy access.

6. whole industrial premises integrated purifying device according to claim 1, is characterized in that: the design of described plasma reactor employing two-stage tandem.

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