CN101837243B - Cigarette smoke purifying device used at public places - Google Patents

Abstract

A cigarette smoke purification device used in public places in the field of smoke purification technology, comprising: a box body, an air inlet, an air outlet, a pre-filter assembly, a high-energy electric field assembly, a fan, a nano-catalysis assembly, an air duct, and a bottom plate, wherein: The air inlet and exhaust outlet are respectively located above and below the box body. The air inlet is connected to the inlet of the pre-filter module. The outlet of the pre-filter module is connected in series with the air duct, the high-energy electric field module and the air inlet of the fan. The exhaust port is connected with the fan. The present invention overcomes the single function problem of existing air purifiers, uses high-energy ion field and nano-catalysis technology to form a purification device, and has high efficiency, Continuous, long-lasting purification function.

Description

Cigarette smoke purification device for public places

technical field

The invention relates to a device in the technical field of smoke purification, in particular to a cigarette smoke purification device used in public places.

Background technique

Passive smoking is particularly harmful to infants, adolescents and women. For children, passive smoking can cause respiratory symptoms and diseases, and affect normal growth and development; for pregnant women, passive smoking can cause stillbirth, miscarriage and low birth weight infants; passive smoking can also increase adult respiratory diseases, lung cancer and risk of cardiovascular disease.

Therefore, how to use air purification technology to control the harm of "second-hand smoke" in public places and families has become a major issue in public health and protection of people's health.

A common way to purify indoor air is to use an air purifier. The current methods used in air purifiers mainly include: physical adsorption method, chemical method, ion method, ultraviolet method and photocatalytic method.

Physical adsorption method refers to the use of porous high specific surface area adsorbents (such as activated carbon, zeolite, silica gel, alumina, etc.) and the van der Waals force between molecules to make chemical pollutant molecules adsorb on the surface of the adsorbent, so as to achieve the purpose of purifying the air. . The physical adsorption method only temporarily transfers the pollutants but does not completely remove them. When the temperature and wind speed rise to a certain level, the adsorbed pollutants may dissociate and enter the breathing space again.

Chemical methods include neutralization, oxidation and catalytic methods. The neutralization method refers to soaking the adsorbent in an active chemical substance and making a composite material after treatment to remove harmful gases, such as alkaline substances to remove CO2, acidic substances to remove NH3, etc. This method is targeted, removes a single substance, consumes a lot of reagents and has a short life. Oxidation method refers to the use of ozone, sodium hypochlorite, potassium permanganate and other oxidants to remove harmful gases such as SO2, H2S, mercaptans and hydroxides. This method consumes a lot of reagents and is easy to cause secondary pollution. The catalytic method refers to the use of metal catalysts such as palladium to make composite materials to oxidize or decompose harmful gases, such as oxidizing CO into CO2, decomposing ozone into oxygen, etc. This method can be carried out at room temperature and low temperature, but it is suitable for higher concentrations, and requires no substances in the air that can react with the catalyst itself, and the price is relatively expensive.

Photocatalytic purification technology is a high-tech cutting-edge purification technology that has emerged in recent years. Compared with traditional purification technologies, it is an extensive, thorough, safe and durable air purification technology. However, photocatalytic technology not only relies on light sources, but also has limited efficiency in purifying pollutants, especially for the purification of complex cigarette smoke.

After searching the existing technical documents, it is found that the Chinese invention patent application number is 200810219471.6, and the name is: portable cigarette smoke purification device. This application discloses a portable cigarette smoke purification device, including a smoke chamber, a worm gear, and a smoke elimination chamber. , the device is easy to carry. However, this invention does not adopt an effective purification method, and cannot guarantee the continuous and effective removal of cigarette smoke and odor, especially cannot meet the requirements for purification of cigarette smoke in public places.

Contents of the invention

The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides a cigarette smoke purification device for public places, which overcomes the single function problem of existing air purifiers, and utilizes a high-energy ion field and nano-catalysis technology to form a purification device, which is effective on cigarettes. Smoke tar, nicotine, carbon monoxide, hydrocarbons and various other metal compounds in smoke have efficient, continuous and long-lasting purification function.

The present invention is achieved through the following technical solutions. The present invention includes: a box body, an air inlet, an air outlet, a pre-filter assembly, a high-energy electric field assembly, a fan, a nano-catalysis assembly, an air duct and a bottom plate, wherein: the air inlet and the air exhaust The outlets are respectively located above and below the box body, the air inlet is connected to the inlet of the pre-filter assembly, the outlet of the pre-filter assembly is connected in series with the air duct, the high-energy electric field assembly and the air inlet of the fan, and the nano-catalysis assembly is arranged at the air outlet of the fan and connected with the The fan is connected.

The pre-filter assembly includes: a filter wire mesh, a coarse filter material core layer and a metal frame, wherein: the filter wire mesh is fixedly arranged outside the coarse filter material core layer and together form a filter mesh, and the metal frame is fixedly arranged outside the filter mesh And it is a drawer structure.

The high-energy electric field assembly is a drawer-type structure. The high-energy electric field assembly has a built-in electric field high-pressure pump and a high-energy ion field. Active ions are generated in the high-energy ion field and dust particles are deposited on the anode plate of the high-energy ion field, which is convenient for dust cleaning and maintenance. .

The nano-catalysis component is a drawer-type structure, including: a nano-catalysis purification plate, a catalytic wire mesh and a metal outer box, wherein: the catalytic wire mesh is fixed on the outside of several nano-catalysis purification boards, and the nano-catalysis purification board is fixed on the Inside the metal outer box.

The nano catalytic purification plate is composed of a honeycomb activated carbon plate and a nano catalyst loaded on it, the nano catalyst is nano titanium dioxide and Fe ₂ O ₃ , MnO ₂ , Co ₃ O ₄ , NiO, Cr ₂ O ₃ , V ₂ O ₅ , CuO or MoO ₃ or a combination thereof.

In the present invention, through the air inlet and the pre-filter assembly, the large particles in the air and the tar particles in the smoke are first captured and adsorbed by the pre-filter assembly, which prevents the large particles in the air and the tar particles in the smoke from directly entering the high-energy electric field area. It affects the purification efficiency and service life of the high-energy electric field components; at the same time, the pre-filter components at the air inlet also play the role of equalizing the air and improving the uniformity of the air intake. The pre-filter assembly can be easily taken out for cleaning or replacement of filter material.

The pre-filtered air containing cigarette smoke enters the high-voltage electric field component area. After the solid and liquid particles in the smoke are captured in the high-voltage electrostatic field area, the gas enters the nano-catalytic component area, and the active ions and particles generated in the high-energy ion field Harmful gases are decomposed or converted into harmless substances under the combined action of catalysts.

The invention organically couples multiple functions of "high-voltage electrostatic capture of particulate matter-selective adsorption-active ions/catalytic decomposition and conversion", can purify indoor and outdoor air, is especially suitable for the purification of cigarette smoke, and has the ability to adapt to the flow rate The advantages of large size, high efficiency, good durability and low noise.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the appearance of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

As shown in Figure 1, this embodiment includes: a box body 1, an air inlet 2, an air outlet 3, a pre-filter assembly 4, a high-energy electric field assembly 5, a fan 6, a nano-catalysis assembly 7, an air duct 8 and a bottom plate 9, wherein : The air inlet 2 and the air outlet 3 are respectively located above and below the box body 1, the air inlet 2 is connected to the inlet of the pre-filter assembly 4, and the outlet of the pre-filter assembly 4 is connected in series with the air duct 8, the high-energy electric field assembly 5 and the fan 6, The nano catalytic component 7 is arranged at the air outlet of the fan 6 and connected with the fan 6 .

Described pre-filter assembly 4 comprises: filter screen 10, coarse filter material core layer 11 and metal frame 12, wherein: filter screen 10 is fixedly arranged on the outside of coarse filter material core layer 11 and forms filter screen together, metal frame 12 It is fixedly arranged on the outside of the filter screen and has a drawer structure.

The high-energy electric field assembly 5 is a drawer-type structure. The high-energy electric field assembly 5 is composed of a built-in electric field high-pressure pump 13 and a high-energy ion field 14. Active ions are generated in the high-energy ion field 14 and dust particles are deposited on the anode plate of the high-energy ion field 14. on, easy to clean dust and maintain.

The nano-catalysis component 7 is a drawer-type structure, including: a nano-catalysis purification plate 15, a catalytic wire mesh 16 and a metal outer box 17, wherein: the catalytic wire mesh 16 is fixedly arranged on the outside of several nano-catalysis purification boards 15, and the nano-catalysis purification board 15 The catalytic purification plate 15 is fixedly arranged in the metal outer box 17 .

The nano-catalysis purification plate 15 is composed of a honeycomb activated carbon plate 18 and a nano-catalyst 19 loaded thereon, and the nano-catalyst 19 is made by mixing nano-titanium dioxide with Fe ₂ O ₃ and MoO ₃ .

This embodiment realizes the coupling of "adsorption/concentration-photocatalysis/molecular catalysis", using specially treated honeycomb activated carbon plates as the carrier, which _can efficiently adsorb and capture harmful gases in cigarette smoke; O ₃ and MoO ₃ and nano-titanium dioxide (TiO ₂ ) form a composite nano-catalyst 19, which is loaded on the surface of the activated carbon carrier. The nano-metal oxide can quickly oxidize the organic harmful substances in the smoke by using the trace amount of ozone generated by the high-energy electric field. The nano-titanium dioxide is The active ions generated in the high-energy electric field stimulate redox reactions to remove harmful substances in the smoke.

The main functions of the nanocatalytic component 7 include: 1) trapping and concentrating pollutants; 2) receiving ozone or active ions generated by a high-energy electric field; 3) producing hydroxyl radicals (OH) and active oxygen (O-, O2 -, O3-), etc., oxidize and decompose CO and hydrocarbons in cigarette smoke into non-toxic substances such as CO2 and water. The nano-catalyst 21 can continuously decompose or oxidize the harmful gas adsorbed on the carrier into harmless substances, avoiding the disadvantage of no purification effect after saturation caused by single adsorption.

The pre-filter assembly 4, high-energy electric field assembly 5 and nano-catalysis assembly 7 in this embodiment are protected and purified by multiple layers, and can pass through cigarette tar, nicotine, carbon monoxide, hydrocarbons and other harmful metal compounds in cigarette smoke at one time The removal rate reaches more than 80%, realizing efficient and long-lasting purification of cigarette smoke.

Claims (2)

1. cigarette fume cleaning device that is used for the public place; Comprise: casing, air inlet, exhaust outlet, pre-filtering assembly, high energy electric field assembly, blower fan, nano-catalytic assembly, air channel and base plate; Wherein: air inlet and air outlet lay respectively at the casing above and below; Air inlet links to each other with the inlet of pre-filtering assembly; Connect the successively air inlet of air channel, high energy electric field assembly and blower fan of the outlet of pre-filtering assembly, the nano-catalytic assembly is arranged at the air outlet of blower fan and links to each other with blower fan, it is characterized in that:

Described pre-filtering assembly comprises: filter silk screen, coarse filtration material sandwich layer and metal framework; Wherein: filter silk screen and be fixedly set in the outside and common screen pack of forming of coarse filtration material sandwich layer, metal framework is fixedly set in the outside of screen pack and is drawer-type structure;

Described nano-catalytic assembly is a drawer-type structure, comprising: the outer box of nano-catalytic purification plate, catalysis silk screen and metal, and wherein: the catalysis silk screen is fixedly set in the outside of some nano-catalytic purification plates, and the nano-catalytic purification plate is fixedly set in the outer box of metal;

Described nano-catalytic purification plate is made up of Alveolate activated carbon capable plate and load nanocatalyst on it;

Described nanocatalyst is nano titanium oxide and Fe ₂O ₃, MnO ₂, Co ₃O ₄, NiO, Cr ₂O ₃, V ₂O ₅, CuO or MoO ₃In a kind of or its combined hybrid process.

2. the cigarette fume cleaning device that is used for the public place according to claim 1 is characterized in that, described high energy electric field assembly is a drawer-type structure, this high energy electric field assembly built-in electric field high-pressure pump and energetic ion field.

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