CN105879664A - Photocatalysis reactor for processing organic waste gas - Google Patents

Abstract

The invention relates to a photocatalysis reactor for processing organic waste gas. The photocatalysis reactor comprises a fan, a screen cloth, a filter medium, a shell, an ultraviolet lamp, an air inlet, an air outlet and a waste liquid exhaust port, wherein the screen cloth is made from activated carbon fiber capable of removing solid particles in organic exhaust gas and is fixed to a sieve plate, the filter medium is a sieve plate loaded with a nanometer titanic oxide photocatalyst, lamp tube clips are arranged between two adjacent layers of the filter medium, lamp tubes are installed on the lamp tube clips, and the lamp tube clips are fixed to a box; the filter medium and the lamp tube clips for fixing the lamp tubes can be detached separately so as to facilitate check and maintenance; the box is installed or placed on a support, a water drainage port is formed in a lower position of the box, and cleaning water or waste liquid in the box is discharged out of the shell through the water drainage port. The photocatalysis reactor has the advantages of being convenient to disassemble and maintain, simple in structure, low in cost and high in applicability.

Description

A photocatalytic reactor for treating organic waste gas

technical field

The invention relates to a reactor for treating organic waste gas, which belongs to the technical field of air purification equipment.

Background technique

With the expansion of production scale and the extensive use of various complex chemicals, industrial enterprises, especially chemical plants, pharmaceutical plants, paper mills, and oil refineries, will emit a large amount of organic waste gas during production and living. These gases not only have irritating odor or foul smell, but also seriously pollute the environment and affect human health.

Traditional organic waste gas treatment technologies include physical, chemical and biological treatment. With the development of time, some new exhaust gas treatment technologies are also coming out, such as plasma method and nanomaterial photocatalysis method and other nanomaterial photocatalysis methods can oxidize and decompose organic gas pollutants into water and carbon dioxide at normal temperature and pressure. And the material itself is seldom consumed, which is the most promising development prospect in the current various organic gas pollutant treatment and deodorization technologies.

Modern photocatalytic organic waste gas processors are mostly fixed installation structures: that is, they include a shell and a photocatalytic reaction module; the photocatalytic reaction module is a compact integration of a dielectric filler loaded with nano-titanium dioxide photocatalyst and an ultraviolet lamp, and welded on the shell. physically. The disadvantages of this structure are: high technical requirements for processing and manufacturing; high processing costs; waste of materials; limited market; and prone to leakage after assembly, difficult to maintain; thus affecting the purification efficiency and purification effect of the gas.

Contents of the invention

The object of the present invention is to provide a photocatalytic reactor for treating organic waste gas , which has the advantages of convenient loading, unloading and maintenance, and simple structure. Low cost; good applicability.

In order to achieve the above purpose of the utility, the present invention provides a photocatalytic reactor for treating organic waste gas , including a fan, a screen, a filter medium, a housing, an ultraviolet lamp, an air inlet, an air outlet, and a waste liquid outlet. The screen is activated carbon fiber that can remove solid particles contained in organic waste gas, and is fixed on the screen plate. The filter medium is a sieve plate loaded with nano-titanium dioxide photocatalyst. A lamp tube clamp is arranged between two layers of adjacent filter media, the lamp tube is installed on the lamp tube clamp, and the lamp tube clamp is fixed on the box body through nuts. Both the filter medium and the lamp tube card for fixing the lamp tube can be disassembled separately for inspection and maintenance. The box is installed or rested on the support, the drain is installed at the lower position of the box, and the cleaning water or waste liquid in the box is drained by the drain.

detailed description

The present invention will be described in detail below in conjunction with accompanying drawing

A photocatalytic organic waste gas treatment device, comprising: an air inlet 1 , a fan 2 , a screen 3 , a housing 4 , a filter medium 5 , a lamp tube card 6 , an air outlet 7 , a waste liquid outlet 8 , and a support 9 . Its main feature is that: the two ends of the housing are respectively provided with an air inlet 1 and an air outlet 7 . The gas inside the reactor is blown by the fan 2 through the air inlet, and is evenly dispersed to the entire shell, and the solid particles contained in the organic waste gas are filtered through the screen 3 . Between the air inlet and the air outlet is provided with a filter medium 5 of multi-layer loaded nano-titanium dioxide photocatalyst mesh-like steel plate. The lamp tube is installed on the lamp tube card 6 , and emits high-energy photons that decompose harmful substances in the gas when it is turned on, and the lamp tube card is fixed on the housing 4 . Both the filter medium 5 and the lamp tube card 6 can be disassembled separately for inspection and maintenance. The box body is installed or rested on the support 9, and the waste liquid discharge port 8 is installed at a lower position of the shell body, and the cleaning water or waste liquid in the box body is discharged from the shell body 4 through the drain port. When the organic waste gas is passed through, the ultraviolet lamp is turned on, and the titanium oxide is activated, which promotes the conversion of the organic waste gas into carbon dioxide and water.

The solid particles that may be contained in the organic waste gas can be filtered out through the screen 3, which can reduce the probability of deactivation of the catalyst titanium oxide used. Timely replacement of the titanium oxide on the filter medium and regular maintenance of the lamp tube can improve the efficiency of the equipment for treating exhaust gas.

Fig. 1 is the schematic diagram of the three-dimensional structure of the photocatalytic reactor for treating organic waste gas in the present invention

Figure 2 Sectional view of the photocatalytic reactor

Figure 3 is a schematic diagram of the filter media structure

Figure 4 is a schematic diagram of the structure of the lamp card: 1-air inlet, 2-fan, 3-screen, 4-housing, 5-filter medium, 6-lamp card, 7-air outlet, 8-waste liquid Discharge, 9-Brackets.

Claims (5)

1. A photocatalytic reactor for treating organic waste gas, comprising a fan, a screen, a filter medium, a housing, an ultraviolet lamp, an air inlet, an air outlet, and a waste liquid discharge outlet. Nano titanium dioxide photocatalyst is loaded on the filter medium. A lamp tube card is arranged between two layers of adjacent filter media, the lamp tube is installed on the lamp tube card, and the lamp tube card is fixed on the box body. Both the filter medium and the lamp tube card can be disassembled separately for inspection and maintenance. The box is installed or rested on the support, and the drain is installed at a lower position of the box, and the cleaning water or waste liquid in the box is discharged from the shell through the drain. 2. A photocatalytic reactor for treating organic waste gas according to claim 1, wherein a plurality of lamp tube cards are installed in the box, and the lamp tubes can generate high-energy photons capable of decomposing harmful substances in the gas. 3. A photocatalytic reactor for treating organic waste gas according to claim 1, characterized in that: the screen is activated carbon fiber capable of removing solid particles contained in organic waste gas, and is fixed on the screen plate. 4. A photocatalytic reactor for treating organic waste gas according to claim 1, characterized in that: the filter medium is a mesh steel plate with a sawtooth cross section. 5. A photocatalytic reactor for treating organic waste gas according to claim 1, characterized in that: a lamp tube card is arranged between two layers of adjacent filter media, the lamp tube is installed on the lamp tube card, and the lamp The pipe clip is fixed on the box body. Both the filter medium and the lamp tube card for fixing the lamp tube can be disassembled separately for inspection and maintenance.