CN210125298U

CN210125298U - Waste gas deodorization adsorption system

Info

Publication number: CN210125298U
Application number: CN201920417766.8U
Authority: CN
Inventors: 潘俊栋; 冯震; 孙超; 许赟
Original assignee: Jiangsu Longchi Environmental Protection Technology Co Ltd
Current assignee: Jiangsu Longchi Environmental Protection Technology Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-03-06
Anticipated expiration: 2029-03-29

Abstract

A waste gas deodorization adsorption system mainly comprises a spray washing tower, a UV photolysis catalytic device, an active carbon adsorption device and a centrifugal fan which are sequentially connected by a gas transmission pipeline; a spray head and a packing layer are sequentially arranged in the spray washing tower from top to bottom, and the spray head is connected with the dispensing barrel through a spray pipe; the UV photolysis catalysis device is a horizontal tank body, a dry filter is arranged at the front end of the tank body, a plurality of photocatalyst lamp tube groups are arranged in the middle of the tank body, the photocatalyst lamp tube groups are vertically arranged along the horizontal direction, and two adjacent photocatalyst lamp tube groups are arranged in a staggered manner; set up the active carbon adsorption layer in the active carbon adsorption device, this system structural design science, the gas distribution is even, and exhaust-gas treatment is effectual, and is with low costs.

Description

Waste gas deodorization adsorption system

Technical Field

The utility model relates to a waste gas treatment field especially relates to a waste gas deodorization adsorption system.

Background

Human existence can not be separated from air, the change of air physical properties and the change of chemical compositions affect human health, various harmful gases, steam or dust are often emitted in some industrial production processes, reasonable ventilation or necessary matched purification systems are needed for improving working environment and ensuring worker health, organic waste gas can be released in some industrial production to affect the operating environment of the whole workshop, therefore, good ventilation is needed to ensure normal technical operation and qualified product quality, the ventilation is not only simple emission of the organic waste gas, and the organic waste gas can pollute the surrounding environment of the workshop and the factory boundary, therefore, the organic waste gas can be treated and can be emitted after reaching the standard.

At present, a plurality of organic waste gas treatment equipment exist in the market, and some equipment is relatively complex, large in occupied area and high in cost; and some devices are simple, the occupied area is small, but the treatment effect is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a structural design science, the gas distribution is even, and exhaust-gas treatment is effectual, a waste gas deodorization adsorption system with low costs.

For realizing the utility model provides the following technical scheme:

a waste gas deodorization adsorption system mainly comprises a spray washing tower, a UV photolysis catalytic device, an active carbon adsorption device and a centrifugal fan which are sequentially connected by a gas transmission pipeline; a spray head and a packing layer are sequentially arranged in the spray washing tower from top to bottom, and the spray head is connected with the dispensing barrel through a spray pipe; the UV photolysis catalysis device is a horizontal tank body, a dry filter is arranged at the front end of the tank body, a plurality of photocatalyst lamp tube groups are arranged in the middle of the tank body, the photocatalyst lamp tube groups are vertically arranged along the horizontal direction, and two adjacent photocatalyst lamp tube groups are arranged in a staggered manner; an activated carbon adsorption layer is arranged in the activated carbon adsorption device.

Furthermore, an air deflector is arranged between the dry filter and the photocatalyst lamp tube group, the front end of the active carbon adsorption device is also provided with the air deflector, an air guide hole is formed in the air deflector, and the aperture of the air guide hole is gradually increased from the middle part to the two ends.

Furthermore, a demister is arranged above a spray head in the spray washing tower, and an access hole is formed in the side wall of the spray washing tower.

Furthermore, the bottom of the packing layer is corrugated packing, the upper part of the packing layer is spherical packing, and the height of the packing layer is 1/3-1/2 of the height of the spray washing tower body.

Further, the thickness of the activated carbon adsorption layer is 300 mm-500 mm.

Furthermore, a non-woven fabric adsorption sheet is arranged between the activated carbon adsorption device and the centrifugal fan, and an exhaust barrel is arranged at the top of the centrifugal fan.

The utility model discloses an useful part:

firstly, the method comprises the following steps: the structural design is scientific, and the function is clear: the first stage is a spray washing tower, gas is adjusted, particles in the gas are removed, and part of organic gas which can be dissolved in water, such as hydrogen chloride, is removed by washing; the second stage is a dry filter, so that escaping paint mist fine particles and water drops are thoroughly removed, and the subsequent photocatalyst lamp tubes and activated carbon carriers are prevented from being polluted; the third stage is a UV photo-oxygen catalytic device, which can efficiently remove main pollutants such as Volatile Organic Compounds (VOC), inorganic substances, hydrogen sulfide, ammonia gas, thiols and the like, and various malodorous gases, and the deodorization efficiency can reach more than 99 percent at most; the waste gas slowly passes through the activated carbon carrier, the organic solvent is prevented from inhabiting in micropores of the carrier, the gas passes through the surface of the activated carbon layer by 300-500 mm through adsorption and purification, the complete absorption of the components of the organic solvent is absolutely ensured, and the purified clean gas is lifted and discharged through an exhaust funnel;

secondly, the method comprises the following steps: the air guide plates are arranged to guide the waste gas, meanwhile, the characteristics of the waste gas advancing path are combined, the middle advancing path is short, the upper advancing path and the lower advancing path are long, the aperture of the air guide holes is gradually increased from the middle to the two ends, the air distribution is uniform, and the waste gas treatment effect is improved;

thirdly, the method comprises the following steps: the packing layer is a corrugated packing and a spherical packing, the corrugated packing has a compact structure, the spherical packing has uniform packing density, cavities and bridges are not easy to generate, the gas-liquid dispersion performance is good, and the corrugated packing is arranged at the bottom, so that the rising speed of waste gas can be delayed, the contact time of the waste gas and spray liquid is prolonged, and the waste gas treatment effect is improved;

fourthly: the photocatalyst lamp nest of tubes sets up perpendicularly along the horizontal direction, and the dislocation is arranged between two sets of adjacent photocatalyst lamp nest of tubes, and waste gas flows in the photocatalyst lamp nest of tubes, and is all-round to be handled waste gas, promotes the exhaust-gas treatment effect.

Drawings

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

FIG. 2 is a schematic view of a structure of a photo-catalytic lamp tube set.

Fig. 3 is a schematic view of an air deflector.

In the figure: 1 is a spray washing tower, 1.1 is a spray header, 1.2 is a packing layer, 1.3 is a spray pipe, 1.4 is a demister, 1.5 is a manhole, 2 is a UV photolysis catalytic device, 2.1 is a dry filter, 2.2 is a photocatalyst lamp tube group, 3 is an activated carbon adsorption device, and 3.1 is an activated carbon adsorption layer

4 is a centrifugal fan, 5 is a dispensing barrel, 6 is an air deflector, 6.1 is an air guide hole, 7 is a non-woven fabric adsorption sheet, and 8 is an exhaust barrel.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

A waste gas deodorization adsorption system mainly comprises a spray washing tower 1, a UV photolysis catalytic device 2, an active carbon adsorption device 3 and a centrifugal fan 4 which are sequentially connected by a gas transmission pipeline; a spray head 1.1 and a packing layer 1.2 are sequentially arranged in the spray washing tower 1 from top to bottom, and the spray head 1.1 is connected with a dispensing barrel 5 through a spray pipe 1.3; the UV photolysis catalysis device 2 is a horizontal tank body, a dry filter 2.1 is arranged at the front end of the tank body, a plurality of groups of photocatalyst lamp tube groups 2.2 are arranged in the middle of the tank body, the photocatalyst lamp tube groups 2.2 are vertically arranged along the horizontal direction, and two adjacent groups of photocatalyst lamp tube groups 2.2 are arranged in a staggered manner; an active carbon adsorption layer 3.1 is arranged in the active carbon adsorption device 3, an air deflector 6 is also arranged between the dry filter 2.1 and the photocatalyst lamp tube group 2.2, the front end of the active carbon adsorption device 3 is also provided with an air deflector 6, the air deflector 6 is provided with an air guide hole 6.1, the aperture of the air guide hole 6.1 is gradually increased from the middle part to the two ends, a demister 1.4 is arranged above a spray header 1.1 in the spray washing tower 1, the side wall of the spray washing tower 1 is provided with an access hole 1.5, the bottom of the packing layer 1.2 is corrugated packing, the upper part is spherical packing, the height of the packing layer 1.2 is 1/3-1/2 of the height of the tower body of the spray washing tower, the thickness of active carbon adsorption layer 3.1 is 300mm ~500mm, still set up non-woven fabrics adsorption sheet 7 between active carbon adsorption device 3 and centrifugal fan 4, 4 tops of centrifugal fan still set up exhaust section of thick bamboo 8.

The waste gas deodorization adsorption system has the working principle that waste gas enters a gas transmission pipeline through a gas collecting hood or an exhaust fan, enters a spray washing tower 1 through the gas transmission pipeline, is treated in the spray washing tower 1 in a gas-liquid reverse absorption mode, a spray head sprays spray liquid prepared in a dispensing barrel 5 downwards from the top of the tower in a fog shape (or small liquid drops), the spray liquid is fully contacted with the waste gas, partial hydrogen chloride and partial organic gas capable of being dissolved in water in the waste gas are removed through washing, and the waste gas contains certain HCL, so NaOH is added into the spray liquid for treatment; the washed waste gas enters a UV photolysis catalytic device 2, a dry filter 2.1 is arranged at the front end of the UV photolysis catalytic device 2 to thoroughly remove escaping paint mist fine particles and water drops, so as to avoid polluting a subsequent photocatalyst lamp tube group 2.2 and an active carbon carrier, the waste gas is uniformly distributed by an air deflector 6, the malodorous gas is subjected to a synergistic decomposition oxidation reaction by using a special high-energy light wave and ozone under the action of the photocatalyst lamp tube group 2.2, meanwhile, the high-energy UVC is used for cracking molecular bonds of bacteria in the malodorous gas, nucleic acid (DNA) of the bacteria is destroyed, then the ozone is used for oxidation reaction, the purposes of deodorizing and killing the bacteria are thoroughly achieved, main pollutants such as Volatile Organic Compounds (VOC), inorganic substances, hydrogen sulfide, ammonia gas, mercaptan and various malodorous ammonia gases are removed, the deodorizing efficiency can reach more than 99 percent at most, the waste gas enters an active carbon adsorption device 3 after passing through the UV photolysis catalytic device 2, similarly, through the uniform wind distribution of the wind deflector 6, the waste gas slowly passes through the activated carbon carrier, the organic solvent is prevented from inhabiting in the micropores of the carrier, through adsorption and purification, the gas passes through the surface of the activated carbon layer by 300 mm-500 mm, the complete absorption of the components of the organic solvent is absolutely ensured, and the purified clean gas is lifted up and discharged through the exhaust funnel.

The present invention is not limited to the above-described embodiments, and various changes may be made by those skilled in the art, and any changes equivalent or similar to the present invention are intended to be covered by the scope of the present invention.

Claims

1. An exhaust gas deodorization adsorption system which characterized in that: the device mainly comprises a spray washing tower, a UV photolysis catalytic device, an active carbon adsorption device and a centrifugal fan which are sequentially connected by a gas transmission pipeline; a spray head and a packing layer are sequentially arranged in the spray washing tower from top to bottom, and the spray head is connected with the dispensing barrel through a spray pipe; the UV photolysis catalysis device is a horizontal tank body, a dry filter is arranged at the front end of the tank body, a plurality of photocatalyst lamp tube groups are arranged in the middle of the tank body, the photocatalyst lamp tube groups are vertically arranged along the horizontal direction, and two adjacent photocatalyst lamp tube groups are arranged in a staggered manner; an activated carbon adsorption layer is arranged in the activated carbon adsorption device.

2. The exhaust gas deodorizing adsorption system according to claim 1, characterized in that: an air deflector is further arranged between the dry filter and the photocatalyst lamp tube group, the front end of the active carbon adsorption device is also provided with an air deflector, an air guide hole is formed in the air deflector, and the aperture of the air guide hole is gradually increased from the middle to the two ends.

3. The exhaust gas deodorizing adsorption system according to claim 1, characterized in that: and a demister is arranged above the spray header in the spray washing tower, and the side wall of the spray washing tower is provided with an access hole.

4. The exhaust gas deodorizing adsorption system according to claim 1, characterized in that: the bottom of the packing layer is corrugated packing, the upper part of the packing layer is spherical packing, and the height of the packing layer is 1/3-1/2 of the height of the spray washing tower body.

5. The exhaust gas deodorizing adsorption system according to claim 1, characterized in that: the thickness of the activated carbon adsorption layer is 300 mm-500 mm.

6. The exhaust gas deodorizing adsorption system according to claim 1, characterized in that: a non-woven fabric adsorption sheet is further arranged between the activated carbon adsorption device and the centrifugal fan, and an exhaust barrel is further arranged at the top of the centrifugal fan.