Catalytic reactor for VOCs waste gas treatment equipment

Abstract

The utility model discloses a catalytic reactor for VOCs (volatile organic compounds) waste gas treatment equipment, which comprises a box body, the box body is of a shell structure and is divided into an upper clamping cover, a box body and a lower clamping cover, a partition plate is arranged between the lower clamping cover and the box body, a plurality of tube bodies are mounted on the partition plate, ultraviolet lamp tubes are sleeved in the tube bodies, tube openings at the upper ends of the tube bodies extend to the upper clamping cover, and tube openings at the lower ends of the tube bodies are fixed on the partition plate. And the inner side wall of the pipe body is sleeved with an activated carbon fiber carrier. Gas enters the gas inlet chamber through the gas inlet pipe, the gas inlet chamber is located on the upper side of the box body, the gas inlet chamber is filled with the gas and can uniformly move to the exhaust chamber through the pipe bodies, the gas penetrates through the pipe bodies and is catalytically decomposed by a catalyst adsorbed on an activated carbon fiber carrier, and an ultraviolet lamp is installed in each pipe body correspondingly, so that the gas can be in full contact with the catalyst; ultraviolet light can also be used for catalyzing in time, so that the treatment efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment equipment, in particular to a catalytic reactor for VOCs waste gas treatment equipment. Background Art

[0002] VOCs is the abbreviation of volatile organic compounds. According to its chemical structure, VOCs can be further divided into alkanes, aromatic hydrocarbons, esters, aldehydes and others. More than 300 types have been identified so far. VOCs are defined in the environmental sense as the active type of volatile organic compounds, that is, the type of volatile organic compounds that can cause harm. For waste gas containing low concentrations of VOCs, it can be purified by adsorption concentration combustion technology, biotechnology, absorption technology, plasma technology or ultraviolet advanced oxidation technology to meet emission standards.

[0003] Photocatalytic technology mainly has two core components: high-energy ultraviolet lamps and photocatalysts. At present, the photocatalytic decomposition of VOCs volatile organic waste gas still uses a honeycomb carrier, but high-energy ultraviolet light can only be irradiated on one side, and it is difficult to find ultraviolet light in the honeycomb pores. Although the gas and the carrier are fully mixed and contacted, the catalytic effect is not ideal. Therefore, the utility model mainly improves the characteristics of the existing catalytic reactor, improves the contact between the exhaust gas and the catalyst, and evenly distributes the ultraviolet lamp tubes in the reactor to improve the catalytic reaction efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a catalytic reactor for VOCs waste gas treatment equipment, which mainly improves the characteristics of the existing catalytic reactor, improves the contact between the waste gas and the catalyst, and evenly distributes the ultraviolet lamps in the reactor to improve the catalytic reaction efficiency.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] A catalytic reactor for VOCs waste gas treatment equipment comprises a box body, wherein the box body is a shell structure and is divided into an upper card cover, a box body and a lower card cover;

[0007] The upper card cover and the box body together form an air intake chamber and are connected to an air intake pipe, and the lower card cover and the box body together form an exhaust chamber and are connected to an exhaust pipe;

[0008] A partition is arranged between the lower card cover and the box body, and a plurality of tube bodies are installed on the partition, each of which is sleeved with an ultraviolet lamp tube. The upper end of the tube body extends to the upper card cover, and the lower end is fixed to the partition, and an air port is opened corresponding to the partition for connecting to the exhaust chamber, and an activated carbon fiber carrier is sleeved on the inner wall of the tube body.

[0009] Furthermore, the ultraviolet lamp tube extends along the length direction of the tube body, and lamp holders are installed at the upper and lower ends of the ultraviolet lamp tube, and the upper lamp holders corresponding to the ultraviolet lamp tube are uniformly installed on the lamp board. The lower lamp holders corresponding to the ultraviolet lamp tube are installed with lower card covers for supporting the ultraviolet lamp tube.

[0010] Furthermore, the activated carbon fiber carrier is a tubular structure, the outer wall of which is installed close to the tube body, the ultraviolet light tube is sleeved inside, the titanium dioxide catalyst is adsorbed in the inner pores, and the activated carbon fiber carrier is detachably installed.

[0011] One side of the pipe opening corresponding to the air inlet pipe and the exhaust pipe is a flange butt joint side, and the other side of the pipe opening is a flared structure for uniform air distribution.

[0012] The utility model has the following beneficial effects: gas enters the air intake chamber through the air intake pipe, the air intake chamber is located on the upper side of the box body, the air intake chamber is filled with gas, and will evenly move to the exhaust chamber through the tube body, the gas passes through the tube body, and is catalytically decomposed by the catalyst adsorbed on the activated carbon fiber carrier, and an ultraviolet lamp is installed in each corresponding tube body, not only can the gas fully contact with the catalyst, but the ultraviolet light can also catalyze in time, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0014] Figure 1 : Schematic diagram of the structure of the upper card cover opening of the utility model.

[0015] Figure 2 : Schematic diagram of the disassembly structure of the ultraviolet lamp tube of the present utility model.

[0016] Figure 3 : Schematic diagram of the overall structure of the utility model.

[0017] In the accompanying drawings, the list of components represented by each reference numeral is as follows: upper card cover 2, box body 1, lower card cover 3, air inlet pipe 21, exhaust pipe 31, partition 4, tube body 5, ultraviolet lamp tube 6, activated carbon fiber carrier 51, lamp holder 61, lamp board 62. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] like Figure 1-3As shown: A catalytic reactor for VOCs waste gas treatment equipment includes a box body, which is a shell structure and is divided into an upper card cover 2, a box body 1 and a lower card cover 3; the box body as a whole is a cubic structure, and the upper card cover, the box body and the lower card cover have folded edges at the butt edges, which are overlapped with each other and then fixed by welding or bolts to ensure sealing.

[0020] The upper card cover 2 and the box body 1 are combined to form an air intake chamber and are connected to an air intake pipe 21, and the lower card cover 3 and the box body 1 are combined to form an exhaust chamber and are connected to an exhaust pipe 31;

[0021] A partition 4 is provided between the lower card cover 3 and the box body 1, and a plurality of tube bodies 5 are installed on the partition 4. The tube bodies are installed vertically, and ultraviolet light tubes 6 are sleeved in the tube bodies 5. The ultraviolet light tubes are coaxially arranged with the tube bodies. The upper end of the tube body 5 extends to the upper card cover 2, and the lower end of the tube is fixed to the partition 4. An air port is opened corresponding to the partition 4 for connecting the exhaust chamber, and an activated carbon fiber carrier 51 is sleeved on the inner wall of the tube body 5. The activated carbon fiber carrier is a tube structure with a thickness greater than the thickness of the tube side wall. It is a porous structure supported by activated carbon fibers and is filled with a nano-scale titanium dioxide catalyst for catalyzing VOCs organic waste gas. The ultraviolet lamp is a vacuum quartz glass ultraviolet lamp. Only by maintaining a vacuum in the lamp tube can high-energy ultraviolet light be stably generated.

[0022] The gas enters the air intake chamber from the air intake pipe. The air intake chamber is located on the upper side of the box body. The air intake chamber is filled with gas and will move evenly through the pipe body to the exhaust chamber. The gas passes through the pipe body and is catalytically decomposed by the catalyst adsorbed on the activated carbon fiber carrier. An ultraviolet lamp is installed in each pipe body. Not only can the gas fully contact with the catalyst, but the ultraviolet light can also catalyze in time to improve the processing efficiency.

[0023] like Figure 2 As shown in the figure: the ultraviolet lamp tube 6 extends along the length direction of the tube body 5, and lamp holders 61 are installed at the upper and lower ends of the ultraviolet lamp tube 6, and the upper lamp holders 61 corresponding to the ultraviolet lamp tube 6 are uniformly installed on the lamp board 62. The upper card cover corresponding to the box body is detachably installed, which is used for maintenance and repair after disassembly, and is convenient for replacing the activated carbon fiber carrier inside. The lower lamp holder corresponding to the ultraviolet lamp tube 6 is installed with a lower card cover 3 for supporting the ultraviolet lamp tube 6.

[0024] The activated carbon fiber carrier 51 is a tubular structure, with the outer wall installed close to the tube body 5, the ultraviolet light tube 6 is sleeved inside, and the titanium dioxide catalyst is adsorbed in the inner pores. The activated carbon fiber carrier 51 is detachably installed. When the exhaust gas passes through the tube body, it is damped by the activated carbon fiber carrier on the side wall, which facilitates the retention of gas and catalytic decomposition.

[0025] like Figure 3 As shown: one side of the corresponding pipe opening of the intake pipe 21 and the exhaust pipe 31 is a flange joint side, and the other side of the pipe opening is a flared structure for uniform air distribution.

[0026] This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. A catalytic reactor for VOCs waste gas treatment equipment, characterized in that: It comprises a box body, which is a shell structure and is divided into an upper card cover (2), a box body (1) and a lower card cover (3); The upper card cover (2) and the box body (1) together form an air intake chamber and are connected to an air intake pipe (21); the lower card cover (3) and the box body (1) together form an exhaust chamber and are connected to an exhaust pipe (31); A partition (4) is provided between the lower card cover (3) and the box body (1), and a plurality of tubes (5) are installed on the partition (4), each of the tubes (5) being sleeved with an ultraviolet lamp tube (6), the upper end of the tube (5) extending to the upper card cover (2), the lower end of the tube is fixed to the partition (4), and an air port is provided corresponding to the partition (4) for connecting to the exhaust chamber, and the inner side wall of the tube (5) is sleeved with an activated carbon fiber carrier (51).

2. The catalytic reactor for VOCs waste gas treatment equipment according to claim 1, characterized in that: The ultraviolet lamp tube (6) extends along the length direction of the tube body (5), and lamp holders (61) are installed at the upper and lower ends of the ultraviolet lamp tube (6), and the upper lamp holders (61) corresponding to the ultraviolet lamp tube (6) are all uniformly installed on the lamp board (62).

3. The catalytic reactor for VOCs waste gas treatment equipment according to claim 2, characterized in that: The lower lamp holder corresponding to the ultraviolet lamp tube (6) is provided with a lower clamping cover (3) for supporting the ultraviolet lamp tube (6).

4. The catalytic reactor for VOCs waste gas treatment equipment according to claim 1, characterized in that: The activated carbon fiber carrier (51) is a tubular structure, the outer wall of which is installed close to the tube body (5), the ultraviolet light tube (6) is sleeved inside, and the titanium dioxide catalyst is adsorbed in the inner pores. The activated carbon fiber carrier (51) is detachably installed.

5. The catalytic reactor for VOCs waste gas treatment equipment according to claim 1, characterized in that: One side of the corresponding pipe opening of the air inlet pipe (21) and the exhaust pipe (31) is a flange butt joint side, and the other side of the pipe opening is a flared structure for uniform air distribution.

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