Sewage deodorization device

Abstract

The utility model relates to the technical field of water engineering, and particularly discloses a sewage deodorization device which comprises a pretreatment box and a purification box, a snakelike pipeline is arranged in the pretreatment box, the air outlet end of the snakelike pipeline is communicated with a flow guide pipe arranged at the upper end of the purification box, and spraying pipes are laid on the tops of the purification box and the snakelike pipeline. A plurality of spray heads are arranged on the spray pipe, biological filler and humidifying filler are arranged below the spray heads, a plurality of waste gas nozzles are arranged below the biological filler, an air duct is arranged at the upper end of the purification box, and an adsorption structure is arranged on the air duct. The malodorous gas enters the pretreatment box through the waste gas inlet pipe, the odorized gas flows in the snakelike pipeline, the snakelike design of the pipeline enables the malodorous gas to be in full contact with the humidifying filler and the sprayed liquid agent, the humidifying effect is better, the wet gas enters the purification box through the flow guide pipe, malodorous substances in the gas are oxidized and decomposed by microorganisms, and the odor removal effect is better. The purified gas is discharged from the waste gas discharge pipe, and the adsorption structure performs secondary purification on the gas, so that the treatment effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of water engineering, in particular to a sewage deodorization device. Background Art

[0002] With the acceleration of the urbanization process, people's requirements for the living environment are getting higher and higher. Sewage deodorization, as an important part of urban environmental governance, is of great significance for promoting urban civilization construction. A large amount of malodorous gas is generated during the sewage treatment process. If these gases are directly discharged without treatment, it will cause serious secondary pollution to the surrounding environment. Through sewage deodorization, the emission of these malodorous gases can be effectively reduced, and the surrounding environment can be protected.

[0003] The biological deodorization method uses the biochemical action of microorganisms to decompose pollutants and convert them into harmless or less harmful substances. Common sewage deodorization devices mainly include a dissolution tank, which is provided with a spraying device, a packing layer, a sewage discharge device and a gas discharge pipe. The gas is introduced into the dissolution tank through the pipe, contacts with water and dissolves in the water. The malodorous components in the aqueous solution are adsorbed and absorbed by microorganisms, and the malodorous components are transferred from the water to the microorganisms; the malodorous components entering the microbial cells are decomposed and utilized by the microorganisms as nutrients, so that the pollutants can be removed. The odor gas enters the dissolution tank and flows upward. During the upward process, it will contact with the falling liquid droplets. However, in actual treatment, when the odor gas is introduced into the dissolution tank, there will be a problem of too fast gas introduction. Too fast gas introduction will cause the liquid droplets sprayed by the spraying device to not fully contact with the odor gas, and it is difficult for the water-soluble substances in the odor gas to completely dissolve in the water, affecting the subsequent microbial treatment effect. Content of the Utility Model

[0004] In view of the above problems, the utility model provides a sewage deodorization device to solve the defect that when the odor gas is introduced into the dissolution tank of the existing sewage deodorization device, due to too fast gas introduction, the liquid droplets sprayed by the spraying device cannot fully contact with the odor gas, and it is difficult for the water-soluble substances in the odor gas to completely dissolve in the water.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: A sewage deodorization device includes a pretreatment tank and a purification tank. A serpentine pipe is arranged in the pretreatment tank. The air inlet end of the serpentine pipe is communicated with an exhaust gas inlet pipe arranged outside the pretreatment tank, and the air outlet end of the serpentine pipe is communicated with a diversion pipe arranged at the upper end of the purification tank;

[0006] Spraying pipes are laid on the tops of both the purification tank and the serpentine pipe. A plurality of spray heads are arranged on the spraying pipes. Below the spray heads, there are biological packing and humidifying packing. The biological packing is fixed inside the purification tank, and the humidifying packing is fixed inside the serpentine pipe. Below the biological packing, there are a plurality of exhaust gas nozzles, and the exhaust gas nozzles are communicated with the diversion pipe;

[0007] At the upper end of the purification box, there is an air duct. An adsorption structure is provided on the air duct. The adsorption structure is detachably connected to the air duct, and the air duct is communicated with the exhaust gas pipe arranged at the upper end of the purification box.

[0008] A further improvement lies in that: a water storage tank is provided at the top of the pretreatment box. The water storage tank is placed below the serpentine pipe and communicated with the serpentine pipe. A drain pipe is laid at the bottom of the pretreatment box, and the drain pipe is communicated with the water storage tank.

[0009] A further improvement lies in that: a waste liquid pipe is laid at the bottom of the purification box. The waste liquid pipe is communicated with the purification box. A water seal structure is provided at the connection between the drain pipe and the purification box.

[0010] A further improvement lies in that: the air duct is fixedly connected to the upper end of the purification box. The air duct is communicated with the exhaust gas pipe. A negative pressure air duct is fixedly connected to the outside of the air duct, and the air duct is communicated with the negative pressure air duct.

[0011] A further improvement lies in that: the adsorption structure includes an activated carbon cylinder arranged in the air duct. The inside of the activated carbon cylinder is hollow. One end of the activated carbon cylinder close to the negative pressure air duct is communicated with the negative pressure air duct. A threaded column is fixedly connected to the end of the activated carbon cylinder far from the negative pressure air duct. The threaded column is screwed into the threaded groove opened on the outside of the air duct, and the threaded groove is threadedly connected with the threaded column.

[0012] A further improvement lies in that: a knob is provided at the end of the threaded column far from the activated carbon cylinder. The knob is fixedly connected to the threaded column.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The malodorous gas enters the pretreatment box through the exhaust gas inlet pipe. The odor-added gas flows in the serpentine pipe. The serpentine design of the pipe can make the malodorous gas fully contact with the humidifying filler and the sprayed liquid agent, and the humidifying effect is better. The wet gas enters the purification box through the diversion pipe. The malodorous substances in the gas are oxidized and decomposed by microorganisms. The purified gas is discharged through the exhaust gas pipe. The adsorption structure performs secondary purification on the gas, and the treatment effect is better. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a structural diagram of the interior of the pretreatment box and the purification box in the present utility model.

[0017] Figure 2 It is a structural diagram of the interior of the air duct in the present utility model.

[0018] Figure 3 It is the structural diagram of the activated carbon cylinder in the present utility model.

[0019] Wherein: 1. Pretreatment tank; 2. Purification tank; 3. Biological filler; 4. Spray head; 5. Diversion pipe; 6. Exhaust gas nozzle; 7. Serpentine pipe; 8. Humidifying filler; 9. Spray pipe; 10. Exhaust gas inlet pipe; 11. Drain pipe; 12. Negative pressure air duct; 13. Air cylinder; 14. Exhaust gas discharge pipe; 15. Activated carbon cylinder; 16. Threaded column; 17. Knob. Specific implementation manner

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0021] According to Figure 1 , 2 , as shown in FIGS. 1, 2, and 3, a sewage deodorization device is proposed in this embodiment, which includes a pretreatment tank 1 and a purification tank 2. A serpentine pipe 7 is provided in the pretreatment tank 1. The intake end of the serpentine pipe 7 is communicated with the exhaust gas inlet pipe 10 provided outside the pretreatment tank 1, and the outlet end of the serpentine pipe 7 is communicated with the diversion pipe 5 provided at the upper end of the purification tank 2;

[0022] Spray pipes 9 are laid on the tops of both the purification tank 2 and the serpentine pipe 7. A plurality of spray heads 4 are provided on the spray pipes 9. Below the spray heads 4, there are a biological filler 3 and a humidifying filler 8. The biological filler 3 is fixed inside the purification tank 2, and the humidifying filler 8 is fixed inside the serpentine pipe 7. Below the biological filler 3, there are a plurality of exhaust gas nozzles 6, and the exhaust gas nozzles 6 are communicated with the diversion pipe 5;

[0023] The malodorous gas enters the pretreatment tank 1 through the exhaust gas inlet pipe 10. The odorous gas flows in the serpentine pipe 7 and is washed and humidified to make the humidity of the exhaust gas reach more than 90%. The wet gas enters the purification tank 2 through the diversion pipe 5. The spray heads 4 spray the circulating liquid. During the process of the air flow and the circulating liquid passing through the biological filler 3, three processes of biological gas-liquid diffusion, liquid-solid diffusion, and biological oxidation are completed. The microorganisms in the biofilm on the surface of the biological filler 3 take the malodorous gas substances as nutrients, and the malodorous substances are oxidized and decomposed by the microorganisms. Energy is generated during the conversion process, providing energy for the growth and reproduction of the microorganisms, and enabling the continuous conversion of the malodorous gas substances.

[0024] The serpentine design of the serpentine pipe 7 can enable the malodorous gas to fully contact the humidifying filler 8 and the liquid agent sprayed by the spray pipe 9, and the humidifying effect is better.

[0025] At the upper end of the purification box 2, there is an air duct 13. An adsorption structure is provided on the air duct 13. The adsorption structure is detachably connected to the air duct 13. The air duct 13 is communicated with the exhaust gas pipe 14 provided at the upper end of the purification box 2.

[0026] The purified gas is discharged from the exhaust gas pipe 14. The adsorption structure filters the harmful substances insoluble in water in the gas, performs secondary purification on the gas, improves the gas treatment effect, and the detachable connection method makes it easy for the staff to replace the adsorption structure.

[0027] It is further worth noting that a water storage tank is provided at the top of the pretreatment box 1. The water storage tank is placed below the serpentine pipe 7 and communicated with the serpentine pipe 7. A drain pipe 11 is laid at the bottom of the pretreatment box 1. The drain pipe 11 is communicated with the water storage tank. The liquid sprayed from the spray head 4 will flow into the water storage tank from the bottom of the serpentine pipe 7 for collection. The drain pipe 11 controls the liquid discharge in the water storage tank, adjusts the water level height of the water storage tank, and avoids the leakage of the malodorous gas in the serpentine pipe 7.

[0028] Regarding the purification box 2:

[0029] A waste liquid pipe is laid at the bottom of the purification box 2. The waste liquid pipe is communicated with the purification box 2. A water seal structure is provided at the connection between the drain pipe and the purification box 2.

[0030] The liquid sprayed from the spray head 4 will converge at the bottom of the purification box 2. The waste liquid pipe at the bottom of the purification box 2 is used to control the liquid discharge in the purification box 2. The water seal structure is provided at the connection between the drain pipe and the purification box 2 to enhance the sealing of the purification box 2 and use the sealing property of water to prevent gas or odor from leaking outside the purification box 2. Both the waste liquid pipe and the drain pipe 11 are connected with a lift pump. The lift pump is connected with a water tank and a waste water tank, which will not be elaborated here.

[0031] Regarding the air duct 13:

[0032] The air duct 13 is fixedly connected to the upper end of the purification box 2. The air duct 13 is communicated with the exhaust gas pipe 14. A negative pressure air duct 12 is fixedly connected to the outside of the air duct 13. The air duct 13 is communicated with the negative pressure air duct 12. One end of the negative pressure air duct 12 away from the air duct 13 is communicated with a fan. When the fan is started, a negative pressure will be formed in the air duct 13. The purified gas in the purification box 2 is drawn into the air duct 13 from the exhaust gas pipe 14 at the top of the purification box 2, and the adsorption component filters the gas twice.

[0033] The adsorption structure is detachably connected to the air duct 13. Specifically, the adsorption structure includes an activated carbon cylinder 15 disposed inside the air duct 13. The inside of the activated carbon cylinder 15 is hollow. One end of the activated carbon cylinder 15 close to the negative pressure air duct 12 is communicated with the negative pressure air duct 12. A threaded column 16 is fixedly connected to the end of the activated carbon cylinder 15 away from the negative pressure air duct 12. The threaded column 16 is screwed into a threaded groove opened on the outer side of the air duct 13, and the threaded groove is threadedly connected to the threaded column 16. The activated carbon cylinder 15 is placed into the air duct 13 in a plug-and-play manner. The negative pressure air duct 12 is communicated with the air duct 13. The negative pressure air duct 12 evacuates the gas inside the air duct 13 outward through the air duct 13. When the gas passes through the activated carbon cylinder 15, the activated carbon cylinder 15 adsorbs the particulate matter insoluble in water in the gas. When removing the activated carbon cylinder 15 from the air duct 13, rotate the threaded column 16 to screw the threaded column 16 out of the threaded groove, and the activated carbon cylinder 15 can be taken out of the air duct 13 entirely through the threaded groove.

[0034] To facilitate the staff to rotate the threaded column 16, a knob 17 is provided at the end of the threaded column 16 away from the activated carbon cylinder 15, and the knob 17 is fixedly connected to the threaded column 16. When rotating the threaded column 16, pinch the knob 17 with fingers and rotate the threaded column 16.

[0035] The working principle of this application:

[0036] The malodorous gas enters the pretreatment tank 1 through the waste gas inlet pipe 10. The odor-added gas flows in the serpentine pipe 7. After being washed and humidified by water, the humidity of the waste gas reaches more than 90%. The serpentine design of the serpentine pipe 7 enables the malodorous gas to fully contact the humidifying filler 8 and the liquid agent sprayed by the spray pipe 9, and the humidifying effect is better. The wet gas enters the purification tank 2 through the diversion pipe 5. The spray head 4 sprays the circulating liquid. The gas flow and the circulating liquid complete three processes of biological gas-liquid diffusion, liquid-solid diffusion, and biological oxidation during the process of passing through the biological filler 3. The microorganisms in the biofilm on the surface of the biological filler 3 take the malodorous gas substances as nutrients, and the malodorous substances are oxidized and decomposed by the microorganisms. Energy is generated during the conversion process, providing energy for the growth and reproduction of the microorganisms, so that the conversion of the malodorous gas substances continues. The purified gas is discharged through the waste gas discharge pipe 14. The adsorption structure filters the harmful substances insoluble in water in the gas, performs secondary purification on the gas, improves the gas treatment effect, and the detachable connection method is easy for the staff to replace the adsorption structure.

[0037] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A sewage deodorization device, comprising a pretreatment tank (1) and a purification tank (2), characterized in that: A serpentine pipe (7) is provided in the pretreatment box (1), the air inlet end of the serpentine pipe (7) is connected to an exhaust gas inlet pipe (10) provided outside the pretreatment box (1), and the air outlet end of the serpentine pipe (7) is connected to a guide pipe (5) provided at the upper end of the purification box (2); A spray pipe (9) is laid on the top of the purification box (2) and the serpentine pipe (7), and a plurality of spray heads (4) are arranged on the spray pipe (9). A biological filler (3) and a humidifying filler (8) are arranged below the spray heads (4). The biological filler (3) is fixed on the inner side of the purification box (2), and the humidifying filler (8) is fixed on the inner side of the serpentine pipe (7). A plurality of waste gas nozzles (6) are arranged below the biological filler (3), and the waste gas nozzles (6) are connected to the guide pipe (5); The upper end of the purification box (2) is provided with a wind tube (13), and the wind tube (13) is provided with an adsorption structure. The adsorption structure is detachably connected to the wind tube (13), and the wind tube (13) is connected to an exhaust gas exhaust pipe (14) provided at the upper end of the purification box (2).

2. A sewage deodorization device according to claim 1, characterized in that: A water storage tank is provided on the top of the pretreatment box (1), the water storage tank is placed below the serpentine pipe (7) and is in communication with the serpentine pipe (7), and a drainage pipe (11) is provided at the bottom of the pretreatment box (1), the drainage pipe (11) is in communication with the water storage tank.

3. A sewage deodorizing device according to claim 1, characterized in that: A waste liquid pipe is laid at the bottom of the purification box (2), the waste liquid pipe is in communication with the purification box (2), and a water seal structure is provided at the connection between the waste liquid pipe and the purification box (2).

4. A sewage deodorizing device according to claim 1, characterized in that: The wind tube (13) is fixedly connected to the upper end of the purification box (2), the wind tube (13) is communicated with the exhaust gas exhaust pipe (14), the outside of the wind tube (13) is fixedly connected with a negative pressure air duct (12), and the wind tube (13) is communicated with the negative pressure air duct (12).

5. A sewage deodorizing device according to claim 4, characterized in that: The adsorption structure comprises an activated carbon cartridge (15) arranged in the air duct (13); the interior of the activated carbon cartridge (15) is hollow; one end of the activated carbon cartridge (15) close to the negative pressure air duct (12) is connected to the negative pressure air duct (12); one end of the activated carbon cartridge (15) away from the negative pressure air duct (12) is fixedly connected to a threaded column (16); the threaded column (16) is screwed into a threaded groove provided on the outside of the air duct (13); the threaded groove is threadedly connected to the threaded column (16).

6. A sewage deodorizing device according to claim 5, characterized in that: A knob (17) is provided at one end of the threaded column (16) away from the activated carbon cartridge (15), and the knob (17) is fixedly connected to the threaded column (16).

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