CN110624407A

CN110624407A - VOC waste gas high-efficiency treatment device

Info

Publication number: CN110624407A
Application number: CN201910954399.XA
Authority: CN
Inventors: 王丹; 陈琼英
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2019-12-31

Abstract

The invention discloses a high-efficiency VOC waste gas treatment device, which relates to the technical field of VOC waste gas treatment and comprises a photocatalytic structure connected with an exhaust pipe, wherein the photocatalytic structure comprises a cylinder body, photocatalyst screens, a driving motor and ultraviolet lamp tubes, the driving motor is arranged on the cylinder body and is used for driving a rotating shaft arranged in the cylinder body to rotate, a plurality of sealing plates are fixed outside the rotating shaft, the photocatalyst screens are fixed on two sides of each sealing plate, two adjacent sealing plates and the inner wall of the cylinder body form a gas storage space for storing VOC waste gas, a plurality of ultraviolet lamp tubes are embedded and arranged on the inner wall of the cylinder body, a gas outlet is arranged at the top of the cylinder body and is connected with the exhaust pipe through a connecting pipe, and the gas outlet is communicated with at most two gas storage spaces simultaneously, and the device has the advantages: the VOC waste gas can be subjected to combustion pretreatment and photocatalytic retreatment so as to ensure the thoroughness of treatment.

Description

VOC waste gas high-efficiency treatment device

Technical Field

The invention relates to the technical field of VOC waste gas treatment, in particular to a high-efficiency VOC waste gas treatment device.

Background

OC is the English abbreviation for volatile organic compounds (volalite organic compounds). VOCs in the general sense are commanding organic matters; but the definition in the environmental protection sense refers to an active class of volatile organic compounds, namely, volatile organic compounds which can cause harm.

VOC mainly comes from smoke from fuel combustion, transportation, smoking, heating, cooking and the like, building and decorative materials, furniture, household appliances, detergents, emission of human bodies and the like, and is harmful to living beings.

At present, the treatment equipment and the treatment method of the VOC are more, but the treatment effect is general, because the contact time of the VOC waste gas and the photocatalyst is short in the continuous VOC waste gas treatment process, and the VOC waste gas cannot be sufficiently treated.

Based on this, this application provides a VOC waste gas high efficiency processing device.

Disclosure of Invention

The invention aims to provide a high-efficiency VOC waste gas treatment device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a VOC waste gas high efficiency processing device, includes the photocatalysis structure of being connected with the blast pipe, the photocatalysis structure includes barrel, photocatalyst otter board, driving motor and ultraviolet fluorescent tube, driving motor installs on the barrel for the rotation of pivot in the barrel is installed in the drive, and the external fixation of pivot has a plurality of closing plates, every the both sides of closing plate all are fixed with photocatalyst otter board, adjacent two the inner wall of closing plate and barrel forms the gas storage space that is used for storing VOC waste gas, and a plurality of ultraviolet fluorescent tubes are installed in the embedding on the inner wall of barrel, the top of barrel is equipped with the gas outlet, and the gas outlet passes through the connecting pipe to be connected with the blast pipe, the gas outlet is linked together with two gas storage.

As a still further scheme of the invention: sealing strips are arranged on the contact surfaces of the sealing plates and the cylinder body.

As a still further scheme of the invention: the sealing strip is made of rubber materials.

As a still further scheme of the invention: the device also comprises a combustion furnace for combusting the VOC waste gas, the combustion furnace is connected with the photocatalytic structure through a tail gas pipe, and the combustion furnace is also provided with a gas supply pipe for inputting the VOC waste gas.

As a still further scheme of the invention: the air supply pipe is also connected with an auxiliary fuel pipe.

As a still further scheme of the invention: and the exhaust pipe is provided with a VOC detector for detecting the VOC concentration in the exhaust gas of the photocatalysis structure.

As a still further scheme of the invention: the connecting pipe is provided with a three-way valve, one outlet of the three-way valve is connected with the tail gas pipe through a gas return pipe, and the gas return pipe is provided with a gas return fan.

Compared with the prior art, the invention has the beneficial effects that: the VOC waste gas can be subjected to combustion pretreatment and photocatalytic retreatment to ensure the thoroughness of treatment, particularly in a photocatalytic structure, the VOC waste gas can be continuously treated, and the content of the VOC waste gas in each gas storage space is approximately the same; the VOC waste gas stays in the gas storage space for a long time, and is discharged outwards until the gas storage space is communicated with the connecting pipe, so that the treatment effect is good.

Drawings

Fig. 1 is a schematic structural diagram of a high-efficiency VOC exhaust gas treatment device.

FIG. 2 is a schematic view of a combustion furnace in a VOC waste gas high efficiency treatment device.

Fig. 3 is a schematic structural diagram of a photocatalytic structure in a VOC exhaust gas high-efficiency treatment device.

In the figure: 1-air supply pipe, 2-auxiliary fuel pipe, 3-combustion furnace, 4-tail gas pipe, 5-photocatalysis structure, 501-cylinder, 502-sealing plate, 503-photocatalyst screen plate, 504-rotating shaft, 505-driving motor, 506-sealing strip, 507-ultraviolet lamp tube, 6-connecting pipe, 7-exhaust pipe, 8-VOC detector, 9-three-way valve, 10-air return pipe and 11-air return fan.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Example 1

Referring to fig. 3, in the embodiment of the present invention, an efficient VOC exhaust gas treatment device includes a photocatalytic structure 5 connected to an exhaust pipe 7, where the photocatalytic structure 5 includes a cylinder 501, photocatalyst screens 503, a driving motor 505 and ultraviolet lamps 507, the driving motor 505 is installed on the cylinder 501 and is used to drive a rotating shaft 504 installed in the cylinder 501 to rotate, a plurality of sealing plates 502 are fixed outside the rotating shaft 504, the photocatalyst screens 503 are fixed on both sides of each sealing plate 502, a gas storage space for storing VOC exhaust gas is formed between two adjacent sealing plates 502 and the inner wall of the cylinder 501, a plurality of ultraviolet lamps 507 are embedded in the inner wall of the cylinder 501, an air outlet is arranged at the top of the cylinder 501 and connected to the exhaust pipe 7 through a connecting pipe 6, and the air outlet is at most simultaneously communicated with two gas storage spaces, so that the VOC exhaust gas can stay in the gas storage spaces for a long time, to ensure the treatment effect.

During practical application, in the VOC waste gas enters into barrel 501, along with the rotation of pivot 504, all deposited quantitative VOC waste gas in every gas storage space, under photocatalyst and ultraviolet fluorescent tube 507's effect, the VOC waste gas is by oxidative cracking, along with the rotation of gas storage space, finally enters into blast pipe 7 through connecting pipe 6 and discharges in, it has following advantage: the VOC waste gas can be continuously treated, and the content of the VOC waste gas in each gas storage space is approximately the same (because the rotating speed of the driving motor 505 is constant); the VOC waste gas stays in the gas storage space for a long time, and is discharged outwards until the gas storage space is communicated with the connecting pipe 6, so that the treatment effect is good.

Further, in order to ensure the sealing performance of the air storage space, sealing strips 506 are mounted on the contact surfaces of the sealing plate 502 and the cylinder 501, and the sealing strips 506 are preferably made of rubber materials.

Example 2

Referring to fig. 1 to 3, in the embodiment of the present invention, an efficient VOC waste gas treatment device further includes a combustion furnace 3 for combusting VOC waste gas to realize primary treatment of the VOC waste gas, the combustion furnace 3 is connected to a photocatalytic structure 5 through an exhaust pipe 4, and the combustion furnace 3 is further provided with an air supply pipe 1 for inputting the VOC waste gas.

In order to achieve sufficient combustion of the VOC exhaust gas, an auxiliary fuel pipe 2 is connected to the air supply pipe 1 for supplying a dye such as natural gas into the combustion furnace 3.

In a preferred embodiment, a VOC detector 8 is mounted on the exhaust pipe 7 for detecting the concentration of VOC in the exhaust gas of the photocatalytic structure 5. Further, a three-way valve 9 is installed on the connecting pipe 6, one of outlets of the three-way valve 9 is connected with the tail gas pipe 4 through a gas return pipe 10, and a gas return fan 11 is installed on the gas return pipe 10, so that when the concentration of the VOC in the exhaust pipe 7 is high, the exhaust of the photocatalytic structure 5 can be cut into the gas return pipe 10 through the three-way valve 9, and then the exhaust is input into the photocatalytic structure 5 again through the gas return pipe 10 to be subjected to photocatalytic treatment.

With reference to the embodiments 1-2, it is easy to understand that the working principle of the technical scheme is as follows: the VOC waste gas is input into a combustion furnace 3 through an air supply pipe 1 for combustion, the VOC waste gas is subjected to primary pretreatment, if the VOC waste gas has low concentration and is not combusted sufficiently, can also be fed into the auxiliary combustion through the auxiliary fuel pipe 2 to ensure the VOC waste gas to be fully combusted, the tail gas (containing part of the unburned VOC waste gas) of the combustion furnace 3 enters the photocatalytic structure 5, firstly the tail gas can enter the gas storage space in sequence for storage, under the action of the photocatalyst and the ultraviolet lamp 507, the VOC waste gas is oxidized and cracked, and finally enters the exhaust pipe 7 through the connecting pipe 6 to be discharged along with the rotation of the gas storage space, when the VOC detector 8 on the exhaust pipe 7 detects that the concentration of the VOC is higher, the exhaust gas from the photocatalytic structure 5 can be cut into the muffler 10 by the three-way valve 9, and then input into the photocatalytic structure 5 again through the muffler 10 for photocatalytic treatment.

It should be particularly noted that, in the present technical solution, the VOC exhaust gas is subjected to combustion pretreatment and photocatalytic retreatment to ensure the thoroughness of treatment, especially in the photocatalytic structure 5, the VOC exhaust gas can be continuously treated, and the content of the VOC exhaust gas in each gas storage space is approximately the same; the VOC waste gas stays in the gas storage space for a long time, and is discharged outwards until the gas storage space is communicated with the connecting pipe 6, so that the treatment effect is good.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The high-efficiency VOC waste gas treatment device comprises a photocatalytic structure (5) connected with an exhaust pipe (7), and is characterized in that the photocatalytic structure (5) comprises a cylinder body (501), photocatalyst screens (503), a driving motor (505) and ultraviolet lamp tubes (507), wherein the driving motor (505) is installed on the cylinder body (501) and used for driving a rotating shaft (504) installed in the cylinder body (501) to rotate, a plurality of sealing plates (502) are fixed outside the rotating shaft (504), the photocatalyst screens (503) are fixed on two sides of each sealing plate (502), a gas storage space for storing VOC waste gas is formed by the two adjacent sealing plates (502) and the inner wall of the cylinder body (501), a plurality of ultraviolet lamp tubes (507) are embedded and installed on the inner wall of the cylinder body (501), a gas outlet is arranged at the top of the cylinder body (501), and is connected with the exhaust pipe (7) through a connecting pipe (6), the air outlet is communicated with the two air storage spaces at most simultaneously.

2. The efficient VOC waste gas treatment device according to claim 1, wherein the sealing plates (502) and the cylinder (501) are provided with sealing strips (506) on their contact surfaces.

3. A high-efficiency VOC exhaust gas treatment device according to claim 2, wherein the sealing strips (506) are made of rubber material.

4. The efficient VOC waste gas treatment device according to claim 1, 2 or 3, further comprising a combustion furnace (3) for combusting VOC waste gas, wherein the combustion furnace (3) is connected with the photocatalytic structure (5) through an exhaust pipe (4), and the combustion furnace (3) is further provided with a gas supply pipe (1) for inputting VOC waste gas.

5. A high-efficiency VOC exhaust gas treatment device according to claim 4, wherein an auxiliary fuel pipe (2) is further connected to said air supply pipe (1).

6. A high-efficiency VOC waste gas treatment device according to claim 1 or 2 or 3 or 5, characterized in that the exhaust pipe (7) is provided with a VOC detector (8) for detecting the VOC concentration in the exhaust gas of the photocatalytic structure (5).

7. The efficient VOC waste gas treatment device according to claim 6, wherein a three-way valve (9) is installed on said connecting pipe (6), one of the outlets of said three-way valve (9) is connected with the tail gas pipe (4) through a gas return pipe (10), and a gas return fan (11) is installed on said gas return pipe (10).