Odor gas treatment device

Abstract

The utility model discloses a peculiar smell gas treatment device, which relates to the technical field of gas treatment and comprises a box body, a washing section, a photolysis section and a filtering section are sequentially arranged in the box body, an air inlet is formed in the middle of the left side of the box body, and an air outlet is formed in the lower part of the right side of the box body; photolysis section demisters are arranged on the left side and the right side of the photolysis section. The photolysis section demisters are arranged on the two sides of the photolysis section, so that a relatively dry photolysis environment of the photolysis section is ensured, the photolysis efficiency and the use safety of peculiar smell gas are ensured, the conditions of heating damage of an ultraviolet lamp tube, rusting damage of equipment parts and the like caused by high humidity can be effectively avoided, and the service life of the ultraviolet lamp tube and the service life of the equipment parts are effectively prolonged. According to the device, peculiar smell gas washing, photolysis and filtering processes are integrated in one box body, so that on one hand, the occupied area and the occupied space of the peculiar smell gas treatment device are effectively reduced, and the equipment cost is reduced; and pipeline connection of the device is simple, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas processing, in particular to a peculiar smell gas processing device. Background Art

[0002] Odor-causing gases mainly come from waste gas generated in industrial and agricultural production, domestic waste, sewage treatment, chemical production and other processes. Such waste gas contains malodorous pollutants such as ammonia, hydrogen sulfide, and methyl sulfide, or contains odorous VOCs pollutants such as benzene, toluene, and xylene, which cause the odor in such waste gas.

[0003] There are several odor gas treatment processes, such as washing, photolysis, filtration, and adsorption. Odor gas treatment is generally a combination of two or more of the above process technologies. This results in the odor gas treatment system being composed of multiple exhaust gas treatment devices. For example, the odor gas treatment system using wet dust removal + UV photolysis + washing, filtering, and absorbing processes is composed of a wet dust removal device, a UV photolysis reaction device, a washing, filtering, and absorbing tower, etc. The wet dust removal device and the UV photolysis reaction device, as well as the UV photolysis reaction device and the washing, filtering, and absorbing tower must be connected by air ducts.

[0004] At present, odorous gas treatment adopts a combination of various processes. The odorous gas treatment system is composed of multiple independent exhaust gas treatment devices connected by external pipelines. This type of odorous gas treatment system consists of multiple independent devices, and generally has problems such as large footprint, high system equipment cost, and complex connection pipeline layout and installation. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an odor gas treatment device, which can integrate the washing, photolysis and filtration processes of the odor gas in one box, without the need for multiple independent exhaust gas treatment devices to be connected by pipelines. On the one hand, it effectively reduces the floor area and space occupied by the odor gas treatment device, and reduces the equipment cost; on the other hand, the device pipeline connection is simple and easy to install.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an odor gas treatment device, comprising a box body, in which a washing section, a photolysis section and a filtration section are sequentially arranged, an air inlet is arranged in the middle of the left side of the box body, and an air outlet is arranged in the lower right side; photolysis section demisters are arranged on both sides of the left and right sides of the photolysis section.

[0007] Furthermore, the washing section is provided with a rectifying plate, which is arranged on the left side of the washing section and a certain distance away from the right side of the air inlet, and is used for uniformly distributing the airflow in the box.

[0008] Furthermore, the washing section is also provided with a washing section spray liquid collecting tank, which is located at the bottom of the washing section and is used to collect the spray liquid in the washing section to facilitate the washing section spray liquid to flow back and spray again.

[0009] Furthermore, the washing section is also provided with a washing section spray pipe and a washing section spray pump. The washing section spray pipe is vertically arranged on the right side of the washing section. The washing section spray pump is connected to the washing section spray liquid collecting tank and the washing section spray pipe to lift the spray liquid in the washing section spray liquid collecting tank to the washing section spray pipe.

[0010] The odorous gas enters the device from the air inlet in the middle of the left side of the box, passes through the washing section, photolysis section and filtration section in the box in sequence, and finally the treated and purified gas is discharged from the device from the air outlet in the lower right side of the box.

[0011] After the odorous gas enters the box of the device, it first passes through the rectifier plate inside the box. The rectifier plate can adjust the gas flow state and evenly distribute the gas entering the device, avoiding the processing "dead zone" in the device, which helps to improve the processing efficiency of the device.

[0012] After being rectified by the rectifier plate, the odorous gas enters the washing section for washing treatment. In the washing section, the vertically arranged washing section spray pipe sprays the spray liquid through the nozzle installed horizontally on the pipe. The spray liquid is in convection contact with the horizontally flowing odorous gas, and the fine particulate matter (such as smoke and dust) and water-soluble pollutants contained in the odorous gas are removed. The convection contact between the spray liquid and the horizontally flowing odorous gas helps to increase the gas-liquid mass transfer efficiency and improve the odorous gas washing effect.

[0013] Furthermore, a rectifier plate support frame is provided below the rectifier plate for supporting the rectifier plate.

[0014] Furthermore, the photolysis section demister adopts a multi-layer wire mesh demister arranged vertically. The left photolysis section demister is used to remove moisture from the odorous gas after washing, and the right photolysis section demister is used to prevent the spray liquid of the filtration section from entering the photolysis section. The photolysis section demister ensures a relatively dry photolysis environment (humidity below 60%) in the photolysis section, ensuring the photolysis efficiency and safety of odorous gas. At the same time, it avoids the heating damage of ultraviolet lamps caused by high humidity, rust damage of equipment components, etc., and effectively extends the service life of ultraviolet lamps and equipment components.

[0015] Furthermore, a photolysis section demister support frame is provided below the photolysis section demister for supporting the photolysis section demister.

[0016] Furthermore, an ultraviolet lamp tube area is provided in the middle of the photolysis section, and a plurality of ultraviolet lamp tubes are provided in the ultraviolet lamp tube area. The ultraviolet lamp tubes are horizontally spaced and arranged perpendicular to the airflow direction of the odorous gas, and release ultraviolet light with a wavelength of 185mm or 254mm.

[0017] Furthermore, the photolysis section is also provided with a photocatalytic plate, which is located on both sides of the ultraviolet lamp tube area and arranged perpendicular to the airflow direction of the odorous gas. The surface of the photocatalytic plate is coated with a photocatalyst (such as titanium dioxide), and ultraviolet light and odorous gas undergo a catalytic reaction on the surface of the photocatalytic plate.

[0018] Furthermore, the photocatalytic plate adopts a honeycomb filter plate, which increases the contact area between ultraviolet light and odorous gas and the photocatalyst, greatly improving the treatment efficiency of the odorous gas photolysis section.

[0019] Furthermore, the photolysis section also includes a baffle, which is closely attached to the photolysis section demister support frame, and the baffles are respectively arranged on the right side of the left photolysis section demister support frame and the left side of the right photolysis section demister support frame, the bottom of the baffle is welded and sealed with the bottom plate of the box body, and the top of the baffle is flush with the top of the photolysis section demister support frame; the baffle on the right side of the left photolysis section demister support frame prevents the spray liquid in the washing section spray liquid collection tank from entering the photolysis section; the baffle on the left side of the right photolysis section demister support frame prevents the spray liquid in the filtration section spray liquid collection tank from entering the photolysis section; thereby effectively reducing the gas humidity in the photolysis section.

[0020] The odorous gas after washing has a high moisture content, so it needs to be separated by the photolysis section demister to reduce the moisture in the gas before entering the photolysis section. In the photolysis section of the device, the odorous gas is irradiated by ultraviolet light with a wavelength of 185mm or 254mm emitted by the ultraviolet lamp, and catalytic photolysis reaction mainly occurs on the photocatalytic plates on both sides of the ultraviolet lamp area. The more complex macromolecular gas pollutants in the odorous gas are catalytically photolyzed into small molecular non-polluting gas substances and small molecular gas pollutants that are easy to filter, absorb and treat, which greatly reduces the odor in the odorous gas and improves the treatment efficiency of the subsequent filtration section.

[0021] Furthermore, a filter section spray pipe is provided on the upper part of the filter section and is arranged horizontally. Compared with a vertically arranged spray pipe, this can avoid convection contact between the spray liquid and the odorous gas, thereby effectively reducing the resistance of the filter section.

[0022] Furthermore, a filter section spray liquid collection tank is provided at the bottom of the filter section for collecting the spray liquid in the filter section to facilitate the filter section spray liquid to flow back and spray again.

[0023] Furthermore, the filter section is also provided with a packing area, and the packing area is arranged below the filter section spray pipe. The packing area is provided with packing, and the packing area is the main contact area between the odorous gas and the filter section spray liquid.

[0024] Furthermore, a filling area support frame is provided at the bottom of the filling area for supporting the filling area.

[0025] Furthermore, a packing area bottom baffle is arranged on the right side of the packing area support frame, the top of the packing area bottom baffle is flush with the top of the packing area support frame, and the bottom of the packing area bottom baffle is installed below the liquid level in the filtration section spray liquid collection tank and keeps a certain distance from the bottom plate of the box body, which can prevent gas short flow and ensure the free flow of spray liquid in the filtration section spray liquid collection tank.

[0026] Furthermore, a top baffle of the packing area is provided on the top of the packing area, which is arranged close to the right side of the top of the packing area. The bottom of the top baffle of the packing area is welded and sealed to the top of the packing area, and the top of the top baffle of the packing area is welded and sealed to the top plate of the box body, thereby ensuring that odorous gases in the filter section must pass through the packing in the packing area before flowing out, preventing gas short flow and ensuring treatment efficiency.

[0027] Furthermore, the packing area is provided with a packing inlet and a packing outlet. The upper part of the packing area is the packing inlet for adding packing for supplementing the filter section, and the lower part of the packing area is the packing outlet, so as to ensure that the packing can be discharged and replenished under the action of gravity, without the need for manual shoveling and cleaning of the packing, and the packing is easy to replace and replenish, thereby reducing the difficulty of device maintenance.

[0028] Furthermore, the filter section is also provided with a filter section demister, which is located between the right side of the filter section and the left side of the air outlet. The filter section demister adopts a multi-layer wire mesh demister to separate the treated gas into gas and liquid, ensuring that the spray liquid is not carried out of the treatment device by the gas. On the one hand, it ensures the treatment effect, and on the other hand, it prevents the fan and other equipment from being contaminated and corroded by the spray liquid, thereby achieving the purpose of protecting the equipment and extending the equipment life.

[0029] Furthermore, a filter section demister support frame is provided at the bottom of the filter section demister for supporting the filter section demister.

[0030] Furthermore, a bottom baffle of the filter section demister is arranged on the right side of the filter section demister support frame, and the bottom baffle of the filter section demister is arranged close to the filter section demister support frame, and the top of the bottom baffle of the filter section demister is flush with the top of the filter section demister support frame, and the bottom plate of the bottom box is welded and sealed to prevent gas short flow and block the spray liquid in the filter section spray liquid collection tank from entering the right side of the filter section demister, avoiding the spray liquid from being mixed into the treated gas again and being carried out from the air outlet, effectively reducing the possibility of corrosion and damage to the air duct and fan at the rear end of the device, and extending the service life of equipment such as the fan.

[0031] Furthermore, the filter section is also provided with a filter section spray pump, which is connected to the filter section spray liquid collection tank and the filter section spray pipe to lift the spray liquid in the filter section spray liquid collection tank to the filter section spray pipe.

[0032] After photolysis treatment, the odorous gas passes through the photolysis section demister and then enters the filtration section. In the filtration section, the odorous gas passes through the packing area filled with packing. The spray pipe of the filtration section above the packing area sprays the spray liquid through the nozzle installed vertically on the pipe. The spray liquid flows through the gaps between the packing to the surface of the packing in various places in the packing area. The odorous gas and the spray liquid are contacted and absorbed on the surface of the packing, and the pollutants are transferred from the odorous gas to the spray liquid, thereby removing the pollutants in the odorous gas. The presence of the packing greatly increases the contact area between the odorous gas and the spray liquid, and improves the treatment efficiency of the filtration section.

[0033] Furthermore, a fan is connected to the air outlet at the lower right side of the box body to drive the odorous gas to flow in the entire device.

[0034] Furthermore, the washing section spray liquid collecting tank and the filtering section spray liquid collecting tank are both provided with pH online meters for monitoring the pH of the spray liquid in the washing section spray liquid collecting tank and the filtering section spray liquid collecting tank, and can automatically perform water supply and drainage to maintain the quality of the spray liquid and ensure the treatment effect of the washing section and the filtering section.

[0035] Compared with the prior art, the beneficial effects of the odorous gas treatment device of the utility model are:

[0036] 1. The device is arranged horizontally as a whole. Compared with the vertical arrangement device, it greatly reduces the lifting height of the spray liquid and reduces the energy consumption of the equipment.

[0037] 2. This device integrates the odor gas washing, photolysis and filtration processes in one box. On the one hand, it effectively reduces the floor space and space occupied by the odor gas treatment device and reduces the equipment cost; on the other hand, the device pipeline connection is simple and easy to install.

[0038] 3. Defoggers are installed on both sides of the photolysis section to ensure a relatively dry photolysis environment (humidity below 60%), which not only ensures the photolysis efficiency and safety of odorous gases, but also effectively avoids heating damage of UV lamps and rust damage of equipment parts caused by high humidity, effectively extending the service life of UV lamps and equipment parts.

[0039] 4. The vertically arranged photolysis section demister and filtration section demister both use multi-layer wire mesh demisters. Compared with the baffle demister, you need to pay attention to the installation direction during installation. The multi-layer wire mesh demister is easy to install, liquid is not easily accumulated inside, and the demisting effect is good.

[0040] 5. Two filler inlets and outlets are set in the filler area. The upper part of the filler area is the filler inlet, and the lower part of the filler area is the filler outlet, to ensure that the filler can be discharged and replenished under the action of gravity. There is no need to manually shovel and clean the filler. The filler is easy to replace and replenish, reducing the difficulty of equipment maintenance.

[0041] 6. The device is equipped with a pH online meter to monitor the pH of the spray liquid in the washing section and the filtering section. It can automatically supply and drain water to maintain the quality of the spray liquid and ensure the treatment effect of the washing section and the filtering section. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0043] Figure 2 This is a schematic diagram of the external structure of the utility model;

[0044] In the figure: 1-washing section, 2-1-rectifier, 2-2-rectifier support frame, 3-washing section spray pipe, 4-washing section spray liquid collection tank, 5-photolysis section, 6-1-photolysis section demister, 6-2-photolysis section demister support frame, 7-baffle, 8-1-ultraviolet lamp area, 8-2-ultraviolet lamp, 9-photocatalytic plate, 10-filter section, 11-filter section spray pipe, 12-filler area, 12-1-filler, 12-2-packing area support frame, 12-3-packing area bottom baffle, 12-4-packing area top baffle, 13-packing inlet, 14-packing outlet, 15-filter section spray liquid collection tank, 16-filter section demister, 16-1-filter section demister support frame, 16-2-filter section demister bottom baffle, 17-fan, 18-washing section spray pump, 19-filter section spray pump, 20-pH online instrument. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] For examples, see Figures 1 to 2 The utility model provides a technical solution: an odor gas treatment device, including a box body, in which a washing section 1, a photolysis section 5 and a filtering section 10 are sequentially arranged, an air inlet is arranged in the middle of the left side of the box body, and an air outlet is arranged in the lower right side; photolysis section 5 is provided with photolysis section demisters 6-1 on both sides.

[0047] The washing section 1 is provided with a rectifying plate 2-1, which is arranged on the left side of the washing section 1 and a certain distance away from the right side of the air inlet, for uniformly distributing the airflow in the box.

[0048] The washing section 1 is also provided with a washing section spray liquid collecting tank 4, which is located at the bottom of the washing section 1 and is used to collect the spray liquid in the washing section 1 to facilitate the washing section spray liquid to flow back and spray again.

[0049] The washing section 1 is also provided with a washing section spray pipe 3 and a washing section spray pump 18. The washing section spray pipe 3 is vertically arranged on the right side of the washing section 1. The washing section spray pump 18 connects the washing section spray liquid collecting tank 4 and the washing section spray pipe 3 to lift the spray liquid in the washing section spray liquid collecting tank 4 to the washing section spray pipe 3.

[0050] The odorous gas enters the device from the air inlet in the middle of the left side of the box, passes through the washing section 1, photolysis section 5 and filtration section 10 in the box in sequence, and finally the treated and purified gas is discharged from the device from the air outlet in the lower right side of the box.

[0051] After the odorous gas enters the box of the device, it first passes through the rectifier plate 2-1 in the box. The rectifier plate 2-1 can adjust the gas flow state and evenly distribute the gas entering the device, avoiding the processing "dead zone" in the device, which helps to improve the processing efficiency of the device.

[0052] The odorous gas rectified by the rectifying plate 2-1 enters the washing section 1 for washing treatment. In the washing section 1, the vertically arranged washing section spray pipe 3 sprays the spray liquid through the nozzle installed horizontally on the pipe. The spray liquid is in convective contact with the horizontally flowing odorous gas, and the fine particulate matter (such as smoke and dust) and water-soluble pollutants contained in the odorous gas are removed. The convective contact between the spray liquid and the horizontally flowing odorous gas helps to increase the gas-liquid mass transfer efficiency and improve the odorous gas washing effect.

[0053] A rectifier plate support frame 2-2 is provided below the rectifier plate 2-1 for supporting the rectifier plate 2-1.

[0054] The photolysis section demister 6-1 is arranged vertically. The left photolysis section demister 6-1 is used to remove moisture from the odorous gas after washing, and the right photolysis section demister 6-1 is used to prevent the spray liquid of the filtration section from entering the photolysis section 5. The photolysis section demister 6-1 ensures a relatively dry photolysis environment (humidity below 60%) in the photolysis section 5, ensuring the photolysis efficiency and safety of the odorous gas. At the same time, it avoids the heating damage of the ultraviolet lamp caused by high humidity, the rust damage of equipment parts, etc., and effectively extends the service life of the ultraviolet lamp and equipment parts.

[0055] A photolysis section demister support frame 6-2 is provided below the photolysis section demister 6-1 for supporting the photolysis section demister 6-1.

[0056] The photolysis section demister 6-1 adopts a multi-layer wire mesh demister.

[0057] An ultraviolet lamp tube area 8-1 is arranged in the middle of the photolysis section 5. The ultraviolet lamp tube area 8-1 is provided with a plurality of ultraviolet lamp tubes 8-2. The ultraviolet lamp tubes 8-2 are arranged horizontally and spaced perpendicular to the airflow direction of the odorous gas, and release ultraviolet light with a wavelength of 185mm or 254mm.

[0058] The photolysis section 5 is also provided with a photocatalytic plate 9, which is located on both sides of the ultraviolet lamp tube area 8-1 and arranged perpendicular to the airflow direction of the odorous gas. The surface of the photocatalytic plate 9 is coated with titanium dioxide, and ultraviolet light and odorous gas undergo a catalytic reaction on the surface of the photocatalytic plate 9.

[0059] The photocatalytic plate 9 adopts a honeycomb filter plate, which increases the contact area between the ultraviolet light and the odorous gas and the photocatalyst, and greatly improves the processing efficiency of the odorous gas photolysis section 5.

[0060] The photolysis section 5 also includes a baffle 7, which is close to the photolysis section demister support frame 6-2. The baffle 7 is respectively arranged on the right side of the left photolysis section demister support frame 6-2 and the left side of the right photolysis section demister support frame 6-2. The bottom of the baffle 7 is welded and sealed with the bottom plate of the box body, and the top of the baffle 7 is flush with the top of the photolysis section demister support frame 6-2; the baffle 7 on the right side of the left photolysis section demister support frame 6-2 prevents the spray liquid in the washing section spray liquid collection tank 4 from entering the photolysis section 5; the baffle 7 on the left side of the right photolysis section demister support frame 6-2 prevents the spray liquid in the filtration section spray liquid collection tank 15 from entering the photolysis section 5; thereby effectively reducing the gas humidity in the photolysis section.

[0061] The odorous gas after washing has a high moisture content, and needs to be separated by the photolysis section demister 6-1 to reduce the moisture in the gas before entering the photolysis section 5. In the photolysis section 5 of the device, the odorous gas is irradiated by ultraviolet light with a wavelength of 185mm or 254mm emitted by the ultraviolet lamp 8-2, and a catalytic photolysis reaction mainly occurs on the photocatalytic plates 9 on both sides of the ultraviolet lamp area 8-1. The more complex macromolecular gas pollutants in the odorous gas are catalytically photolyzed into small molecular non-polluting gas substances and small molecular gas pollutants that are easy to filter, absorb and treat, which greatly reduces the odor in the odorous gas and improves the treatment efficiency of the subsequent filtration section 10.

[0062] A filter section spray pipe 11 is provided on the upper part of the filter section 10 and is arranged horizontally. Compared with a vertically arranged spray pipe, this can avoid convection contact between the spray liquid and the odorous gas, thereby effectively reducing the filter section resistance.

[0063] A filter section spray liquid collecting tank 15 is provided at the bottom of the filter section 10 for collecting the spray liquid in the filter section 10 so that the filter section spray liquid can flow back to the spray liquid collecting tank 15 and then be sprayed again.

[0064] The filter section 10 is also provided with a packing area 12, which is arranged below the filter section spray pipe 11. The packing area 12-1 is arranged in the packing area. The packing area 12 is the main contact area between the odorous gas and the filter section spray liquid.

[0065] A filling area support frame 12 - 2 is provided at the bottom of the filling area 12 for supporting the filling area 12 .

[0066] A packing area bottom baffle 12-3 is arranged on the right side of the packing area support frame 12-2, the top of the packing area bottom baffle 12 is flush with the top of the packing area support frame 12-2, and the bottom of the packing area bottom baffle 12-3 is installed below the liquid level in the filtration section spray liquid collection tank 15, and keeps a certain distance from the bottom plate of the box body, which can prevent gas short flow and ensure the free flow of the spray liquid in the filtration section spray liquid collection tank 15.

[0067] A top baffle plate 12-4 of the packing area is provided on the top of the packing area 12, and is arranged close to the right side of the top of the packing area 12. The bottom of the top baffle plate 12-4 of the packing area is welded and sealed to the top of the packing area 12, and the top of the top baffle plate 12-4 of the packing area is welded and sealed to the top plate of the box body, thereby ensuring that the odorous gas in the filter section 10 must pass through the packing in the packing area 12 before it can flow out, preventing gas short flow and ensuring treatment efficiency.

[0068] The packing area 12 is provided with two packing inlets 13 and a packing outlet 14. The upper part of the packing area 12 is the packing inlet 13 for adding packing for supplementing the filter section 10. The lower part of the packing area 12 is the packing outlet 14, which ensures that the packing 12-1 can be discharged and replenished under the action of gravity. There is no need for manual shoveling and cleaning of the packing 12-1. The packing 12-1 is easy to replace and replenish, reducing the difficulty of device maintenance.

[0069] The filter section 10 is also provided with a filter section demister 16, which is located between the right side of the filter section 10 and the left side of the air outlet. The filter section demister 16 adopts a multi-layer wire mesh demister to separate the treated gas into gas and liquid to ensure that the spray liquid is not carried out of the treatment device by the gas. On the one hand, it ensures the treatment effect, and on the other hand, it prevents the fan and other equipment from being contaminated and corroded by the spray liquid, thereby achieving the purpose of protecting the equipment and extending the equipment life.

[0070] A filter section demister support frame 16 - 1 is provided at the bottom of the filter section demister 16 for supporting the filter section demister 16 .

[0071] A filter section demister bottom baffle 16-2 is provided on the right side of the filter section demister support frame 16-1. The filter section demister bottom baffle 16-2 is arranged close to the filter section demister support frame 16-1, and the top of the filter section demister bottom baffle 16-2 is flush with the top of the filter section demister support frame 16-1. The bottom box bottom plate is welded and sealed to prevent gas short-flow and block the spray liquid in the filter section spray liquid collection tank 15 from entering the right side of the filter section demister 16, avoiding the spray liquid from being mixed into the treated gas again and being carried out from the air outlet, effectively reducing the possibility of corrosion and damage to the air duct and fan at the rear end of the device, and extending the service life of equipment such as the fan.

[0072] The filter section 10 is also provided with a filter section spray pump 19 , which is connected to the filter section spray liquid collection tank 15 and the filter section spray pipe 11 to lift the spray liquid in the filter section spray liquid collection tank 15 to the filter section spray pipe 11 .

[0073] After the photolysis treatment, the odorous gas passes through the photolysis section demister 6-1 and then enters the filtration section 10. In the filtration section 10, the odorous gas passes through the packing area 12 filled with packing 12-1, and the filtration section spray pipe 11 on the upper part of the packing area 12 sprays the spray liquid through the nozzle installed vertically on the pipe, and the spray liquid flows through the gap of the packing 12-1 to the surface of the packing 12-1 in various places of the packing area 12. The odorous gas and the spray liquid are contacted and absorbed by mass transfer on the surface of the packing 12-1, and the pollutants are transferred from the odorous gas to the spray liquid, thereby removing the pollutants in the odorous gas. The presence of the packing 12-1 greatly increases the contact area between the odorous gas and the spray liquid, and improves the treatment efficiency of the filtration section 10.

[0074] The air outlet at the lower right side of the box is connected to a fan 17 for driving the odorous gas to flow in the entire device.

[0075] The washing section spray liquid collecting tank 4 and the filtering section spray liquid collecting tank 15 are both provided with a pH online meter 20 for monitoring the pH of the spray liquid in the washing section spray liquid collecting tank 4 and the filtering section spray liquid collecting tank 15, and can automatically perform water supply and drainage to maintain the quality of the spray liquid, thereby ensuring the treatment effect of the washing section 1 and the filtering section 10.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for treating odorous gas, characterized in that: The invention comprises a box body, wherein a washing section (1), a photolysis section (5) and a filtering section (10) are sequentially arranged in the box body, an air inlet is arranged in the middle of the left side of the box body, and an air outlet is arranged in the lower right side; photolysis section demisters (6-1) are arranged on both the left and right sides of the photolysis section (5), the photolysis section (5) is also provided with a baffle (7), a photolysis section demister support frame (6-2) is arranged below the photolysis section demister (6-1), the baffle (7) is arranged closely to the photolysis section demister support frame (6-2), and the baffles (7) are respectively arranged on the right side of the left photolysis section demister support frame (6-2) and on the left side of the right photolysis section demister support frame (6-2).

2. The odorous gas treatment device according to claim 1, characterized in that: The washing section (1) is provided with a rectifying plate (2-1), and the rectifying plate (2-1) is arranged between the left side of the washing section (1) and the right side of the air inlet.

3. The odorous gas treatment device according to claim 1, characterized in that: The washing section (1) is further provided with a washing section spray liquid collecting tank (4), a washing section spray pipe (3) and a washing section spray pump (18); the washing section spray liquid collecting tank (4) is located at the bottom of the washing section (1); the washing section spray pipe (3) is arranged on the right side of the washing section (1); the washing section spray pump (18) is connected to the washing section spray liquid collecting tank (4) and the washing section spray pipe (3) to lift the spray liquid in the washing section spray liquid collecting tank (4) to the washing section spray pipe (3).

4. The odorous gas treatment device according to claim 1, characterized in that: The photolysis section demister (6-1) is a multi-layer wire mesh demister arranged vertically.

5. The odorous gas treatment device according to claim 1, characterized in that: An ultraviolet lamp tube area (8-1) is provided in the middle of the photolysis section (5), and a plurality of ultraviolet lamp tubes (8-2) are provided in the ultraviolet lamp tube area (8-1), and the ultraviolet lamp tubes (8-2) are arranged horizontally and spaced apart in a direction perpendicular to the airflow of the odorous gas.

6. The odorous gas treatment device according to claim 5, characterized in that: The photolysis section (5) is further provided with a photocatalytic plate (9), and the photocatalytic plate (9) is located on both sides of the ultraviolet lamp tube area (8-1), between the photolysis section demister (6-1), and is arranged perpendicular to the airflow direction of the odorous gas.

7. The odorous gas treatment device according to claim 3, characterized in that: The filter section (10) is provided with a filter section spray pipe (11), a filter section spray liquid collection tank (15) and a filter section spray pump (19); the filter section spray pipe (11) is provided at the top of the filter section (10), the filter section spray liquid collection tank (15) is provided at the bottom of the filter section (10), and the filter section spray pump (19) is connected to the filter section spray liquid collection tank (15) and the filter section spray pipe (11) to lift the spray liquid in the filter section spray liquid collection tank (15) to the filter section spray pipe (11).

8. The odorous gas treatment device according to claim 1, characterized in that: The filter section (10) is also provided with a filter section demister (16), which is located between the right side of the filter section (10) and the left side of the air outlet; a filter section demister support frame (16-1) is provided at the bottom of the filter section demister (16); a filter section demister bottom baffle (16-2) is provided on the right side of the filter section demister support frame (16-1); the filter section demister bottom baffle (16-2) is arranged in close contact with the filter section demister support frame (16-1); and the top of the filter section demister bottom baffle (16-2) is flush with the top of the filter section demister support frame (16-1).

9. The odorous gas treatment device according to claim 7, characterized in that: The filter section (10) is further provided with a packing area (12), the packing area (12) being arranged below the filter section spray pipe (11), the packing area (12) being provided with packing (12-1), the packing area (12) being provided with a packing inlet (13) at the top and a packing outlet (14) at the bottom.

10. The odorous gas treatment device according to claim 7, characterized in that: The washing section spray liquid collecting tank (4) and the filtering section spray liquid collecting tank (15) are both provided with a pH online meter (20).

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