A multifunctional activated carbon deodorization device and control system

Abstract

This utility model provides a multifunctional activated carbon deodorization device and control system, belonging to the field of waste gas treatment technology. The multifunctional activated carbon deodorization device includes a body with a pre-filter structure. The output port of the pre-filter structure is equipped with a three-way valve, which has a first inlet, a first outlet, and a second outlet. The body also includes a spray treatment structure and an activated carbon treatment structure. The first outlet of the three-way valve is connected to the spray treatment structure, and the first outlet and the second outlet of the three-way valve are also connected. This device can direct the waste gas to be treated into different treatment structures as needed, offering high flexibility while ensuring effective waste gas treatment and reducing treatment costs.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a multifunctional activated carbon deodorization device and control system. Background Technology

[0002] In today's society, ambient air quality is receiving increasing attention. Whether in densely populated urban areas or various industrial production sites, the emission of odorous gases has a significant negative impact on the environment and human health. From a residential perspective, the foul odors emitted from urban waste disposal sites and sewage treatment plants severely affect the comfort of nearby residents. In the industrial sector, odorous gases containing complex organic components emitted by industries such as chemical, pharmaceutical, and food processing not only damage the ecological environment but may also trigger a series of environmental problems. Activated carbon has a highly developed pore structure and a large specific surface area. These pores can adsorb odor molecules and harmful gases in the air. When odorous gases pass through activated carbon, the odor molecules are adsorbed onto the pore surface of the activated carbon, thus achieving a deodorizing effect.

[0003] Existing technology CN208694610U discloses an activated carbon deodorization device. This device includes a housing, within which filter plates are mounted via a filter plate support device. The filter plates divide the internal space of the housing into an upper filtration chamber and a lower air inlet chamber. Activated carbon is placed in the filtration chamber, and a filter outlet is located at the top of the filtration chamber. An air inlet is located in the air inlet chamber. When activated carbon is not needed to treat odors, the valve at the air outlet can be opened, and the valve at the filter outlet can be closed. Odors enter through the air inlet and exit directly through the air outlet, bypassing the activated carbon and avoiding unnecessary waste of activated carbon, thus reducing odor treatment costs.

[0004] However, this device relies solely on activated carbon to treat the waste gas. Activated carbon has varying adsorption capacities for different substances, and when the waste gas contains multiple components, the activated carbon may not be able to effectively adsorb all pollutants. Therefore, this device still has room for improvement. Summary of the Invention

[0005] To overcome the problems existing in related technologies, one of the objectives of this application is to provide a multifunctional activated carbon deodorization device. This device can introduce the waste gas to be treated into different treatment structures as needed, which is highly flexible in use, can ensure the treatment effect of waste gas, and reduce treatment costs.

[0006] A multifunctional activated carbon deodorization device, comprising:

[0007] The machine body is provided with a pre-filter structure, and the output port of the pre-filter structure is provided with a three-way valve, which is provided with a first inlet, a first outlet and a second outlet.

[0008] The machine body is also provided with the spray treatment structure and the activated carbon treatment structure. The first outlet of the three-way valve is connected to the spray treatment structure, and the second outlet of the three-way valve is connected to the activated carbon treatment structure.

[0009] In a preferred embodiment of this invention, the spray treatment structure includes an atomizer, an atomizing nozzle, and a water tank. The atomizer and the water tank are both fixed in the body. The top of the water tank has an opening, and the atomizing nozzle is positioned above the water tank and facing the opening at the top of the water tank.

[0010] In a preferred embodiment of this invention, the water tank is provided with a partition, which divides the water tank into a first liquid storage tank and a second liquid storage tank. Atomizing nozzles are provided above both the first liquid storage tank and the second liquid storage tank.

[0011] In a preferred embodiment of this invention, both the first liquid storage tank and the second liquid storage tank are provided with mounting plates, and each mounting plate is provided with a plurality of liquid level sensors, which are fixed on the mounting plate along the height direction of the mounting plate.

[0012] In a preferred embodiment of this utility model, the activated carbon treatment structure includes a shell, an air inlet is provided at the bottom of the shell, a primary filter is provided at the air inlet, and an activated carbon filter layer is provided inside the shell.

[0013] A bypass port is provided on one side of the shell, and the bypass port is connected to the water tank.

[0014] In a preferred embodiment of this invention, a mounting opening is provided on one side wall of the housing, a guide rail is provided inside the housing, the activated carbon filter layer includes a mounting frame, the mounting frame is filled with activated carbon, and the mounting frame is slidably engaged with the guide rail.

[0015] In a preferred embodiment of this invention, the pre-filter structure includes a first pre-filter and a second pre-filter that are interconnected, and the outlet of the second pre-filter is connected to the first inlet of the three-way valve.

[0016] The second objective of this application is to provide a control system, including a controller, which is electrically connected to the three-way valve.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model provides a multifunctional activated carbon deodorization device, which includes a body containing a pre-filter structure. The pre-filter structure has a three-way valve at its output port, with a first inlet, a first outlet, and a second outlet. The body also includes a spray treatment structure and an activated carbon treatment structure. The first outlet of the three-way valve is connected to the spray treatment structure, and the first outlet of the three-way valve is connected to the second outlet. During operation, waste gas first enters the pre-filter structure, which filters out large particulate impurities such as dust and wastewater droplets. Then, depending on the composition of the waste gas, the pre-filtered waste gas is introduced into either the spray treatment structure or the activated carbon treatment structure for different levels of treatment. For example, lightly polluted waste gas can be treated only with activated carbon; for heavily polluted waste gas, pre-filtration can be performed first, followed by spray treatment. This greatly improves the flexibility of the device. Furthermore, the multi-stage treatment works in conjunction to comprehensively purify the waste gas and ensure effective treatment.

[0019] This application also provides a control system for controlling the operation of the above-mentioned deodorization device, so as to realize the automatic treatment of different gases using different filtration structures, which can improve the automation level of gas treatment and reduce labor costs. Attached Figure Description

[0020] Figure 1 This is a perspective view of the multifunctional activated carbon deodorization device provided in the embodiments of this utility model;

[0021] Figure 2 This is a perspective view of the interior of the multifunctional activated carbon deodorization device provided in the embodiments of this utility model;

[0022] Figure 3 yes Figure 2 The main view;

[0023] Figure 4 This is a schematic diagram of the interior of the water tank provided in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the spray treatment structure provided in an embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the activated carbon treatment structure provided in an embodiment of this utility model.

[0026] Figure label:

[0027] 1. Main body; 2. Pre-filter structure; 21. First pre-filter; 22. Second pre-filter; 3. Spray treatment structure; 31. Water tank; 311. Partition plate; 312. Mounting plate; 313. Liquid level sensor; 314. First liquid storage tank; 315. Second liquid storage tank; 32. Atomizer; 33. Atomizing nozzle; 4. Activated carbon treatment structure; 41. Shell; 42. Air inlet; 43. Primary filter; 44. Activated carbon filter layer; 45. Bypass port; 5. Three-way valve. Detailed Implementation

[0028] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0029] Existing technology discloses an activated carbon deodorization device, which includes a housing. Inside the housing, filter plates are mounted via a filter plate support device. The filter plates divide the internal space of the housing into an upper filtration chamber and a lower air inlet chamber. Activated carbon is placed in the filtration chamber, and a filter outlet is located at the top of the filtration chamber. An air inlet is located in the air inlet chamber. When activated carbon is not needed to treat odors, the valve at the air outlet can be opened and the valve at the filter outlet closed. Odors enter through the air inlet and exit directly through the air outlet, bypassing the activated carbon and avoiding unnecessary waste of activated carbon, thus reducing odor treatment costs.

[0030] However, this device can only treat waste gas using activated carbon, and activated carbon has different adsorption capacities for different substances. When there are multiple components in the waste gas, activated carbon may not be able to effectively adsorb all pollutants.

[0031] Based on this, this application provides a multifunctional activated carbon deodorization device. Example

[0032] like Figures 1-6 As shown, this application provides a multifunctional activated carbon deodorization device, comprising:

[0033] The machine body 1 is provided with a pre-filter structure 2. The output port of the pre-filter structure 2 is provided with a three-way valve 5. The three-way valve 5 is provided with a first inlet, a first outlet and a second outlet.

[0034] The body 1 is also provided with the spray treatment structure 3 and the activated carbon treatment structure 4. The first outlet of the three-way valve 5 is connected to the spray treatment structure 3, and the second outlet of the three-way valve 5 is connected to the activated carbon treatment structure 4.

[0035] Specifically, the pre-filter structure 2 is used to pre-filter the gas from the exhaust source. This pre-filter can use a filter screen to remove large particulate impurities in the exhaust gas, such as dust and sewage droplets. For example, when the exhaust gas enters the pre-filter structure 2, it is intercepted by the filter screen, and the large particulate impurities are blocked on the filter screen, which significantly reduces the content of particulate impurities in the exhaust gas entering the subsequent treatment structure.

[0036] The pre-filtered exhaust gas enters the spray treatment structure 3 through the first outlet of the three-way valve 5. The spray treatment structure 3 is equipped with multiple atomizing nozzles 33, each connected to a storage tank containing chemical absorbent liquid. When the exhaust gas enters, the atomizing nozzles 33 spray the chemical absorbent liquid into fine droplets at a certain pressure, ensuring full contact with the exhaust gas. For example, for exhaust gas containing water-soluble pollutants such as hydrogen sulfide, the components in the chemical absorbent liquid can chemically react with the hydrogen sulfide, absorbing and removing it.

[0037] The exhaust gas can also enter the activated carbon treatment structure 4 through the second outlet of the three-way valve 5. For example, volatile organic compounds (VOCs) in the exhaust gas, such as benzene and toluene, are adsorbed by the rich pore structure of the activated carbon when passing through the activated carbon treatment structure 4.

[0038] The aforementioned multifunctional activated carbon deodorization device, during operation, first introduces waste gas into the pre-filter structure 2 within the main body 1. The pre-filter structure 2 removes large particulate impurities such as dust and wastewater droplets. Then, depending on the composition of the waste gas, the pre-filtered gas is directed to either the spray treatment structure 3 or the activated carbon treatment structure 4 for different levels of treatment. For example, lightly polluted waste gas can be treated solely with activated carbon; for complexly polluted waste gas, pre-filtration followed by spray treatment can be performed. This approach significantly improves the flexibility of the device. Furthermore, the multi-stage treatment works in tandem to comprehensively purify the waste gas, ensuring effective treatment.

[0039] Specifically, the spray treatment structure 3 includes an atomizer 32, an atomizing nozzle 33, and a water tank 31. The atomizer 32 and the water tank 31 are both fixed in the body 1. The top of the water tank 31 is provided with an opening. The atomizing nozzle 33 is provided above the water tank 31 and faces the opening at the top of the water tank 31.

[0040] During operation, the atomizer 32 activates, spraying the external chemical absorbent liquid into fine droplets through the atomizing nozzle 33 at a certain pressure. The ratio of the chemical absorbent liquid can be adjusted according to the harmful components of the waste gas to be treated. For example, wastewater treatment plant waste gas often contains water-soluble pollutants such as hydrogen sulfide, causing the components in the chemical absorbent liquid to react chemically with the hydrogen sulfide, absorbing and removing these pollutants. The open design at the top of the water tank 31 allows the droplets sprayed from the atomizing nozzle 33 to mix thoroughly with the waste gas, improving absorption efficiency. The water tank 31 also collects the treated wastewater, preventing wastewater leakage.

[0041] In a preferred embodiment, the water tank 31 is provided with a partition 311, which divides the water tank 31 into a first liquid storage tank 314 and a second liquid storage tank 315. Atomizing nozzles 33 are provided above both the first liquid storage tank 314 and the second liquid storage tank 315. The two different first liquid storage tanks 314 are interconnected, allowing the exhaust gas to undergo two different treatments within each tank, thereby improving the treatment effect of the exhaust gas.

[0042] In practical applications, chemical absorbent liquid A is sprayed from the nozzle above the first storage tank 314, while chemical absorbent liquid B is sprayed from the nozzle above the second storage tank 315. By using different chemical hand sanitizers to treat the exhaust gas, the treatment effect is effectively improved. For exhaust gases with complex compositions, compared to spray treatment from a single storage tank, the comprehensive removal rate of multiple water-soluble pollutants can be significantly improved, comprehensively purifying the exhaust gas and effectively solving the problem of odorous exhaust gas from wastewater treatment plants.

[0043] Furthermore, both the first liquid storage tank 314 and the second liquid storage tank 315 are provided with mounting plates 312, and each mounting plate 312 is provided with a plurality of liquid level sensors 313, which are fixed on the mounting plate 312 along the height direction of the mounting plate 312.

[0044] A mounting plate 312 with multiple level sensors 313 is installed in the first and second storage tanks 314 and 315, respectively. The level sensors 313 are distributed along the height of the mounting plate 312, allowing for real-time and comprehensive monitoring of the liquid level changes of the chemical absorbent in the storage tanks. For example, when the waste liquid in the storage tank reaches the lower level sensor 313, an alarm is triggered to remind personnel to handle the waste liquid. When the waste liquid in the storage tank reaches the upper level sensor 313, the system will be shut down to prevent excessive waste liquid from overflowing.

[0045] In a specific embodiment, the activated carbon treatment structure 4 includes a shell 41, an air inlet 42 is provided at the bottom of the shell 41, a primary filter 43 is provided at the air inlet 42, and an activated carbon filter layer 44 is provided inside the shell 41.

[0046] A bypass port 45 is provided on one side of the housing 41, and the bypass port 45 is connected to the water tank 31.

[0047] The exhaust gas enters directly from the second outlet of the three-way valve 5 into the bottom inlet 42 of the shell 41 of the activated carbon treatment structure 4. The primary filter 43 at the inlet 42 performs secondary filtration on the exhaust gas, further intercepting residual small particulate impurities and protecting the subsequent activated carbon filter layer 44. Subsequently, the exhaust gas rises through the activated carbon filter layer 44, where the activated carbon, with its abundant porous structure, adsorbs volatile organic compounds (VOCs) such as benzene and toluene. When certain pollutants in the exhaust gas require further purification after spray treatment, the exhaust gas can enter the activated carbon treatment structure 4 from the outlet of the spray treatment structure 3 through the bypass port 45. For example, intermediate products generated after the reaction of some water-soluble pollutants with the chemical absorption liquid may still have a certain odor or not be completely removed. After entering the activated carbon treatment structure 4 through the bypass port 45, the activated carbon can adsorb these intermediate products and other residual pollutants, further improving the purification level of the exhaust gas.

[0048] Furthermore, a mounting opening is provided on one side wall of the housing 41, a guide rail is provided inside the housing 41, the activated carbon filter layer 44 includes a mounting frame, the mounting frame is filled with activated carbon, and the mounting frame slides in conjunction with the guide rail.

[0049] The sliding fit between the installation frame and guide rail of the activated carbon filter layer 44, along with the installation port, makes the replacement or regeneration of activated carbon extremely convenient. Operators can quickly remove and process the activated carbon without complicated disassembly tools or cumbersome procedures, and easily reinstall it after processing. This improves equipment maintenance efficiency and allows for rapid response to changes in waste gas treatment needs, further enhancing the flexibility of equipment use.

[0050] Furthermore, the pre-filter structure 2 includes a first pre-filter 21 and a second pre-filter 22 that are interconnected, and the outlet of the second pre-filter 22 is connected to the first inlet of the three-way valve 5.

[0051] The pre-filter structure 2 consists of a first pre-filter 21 and a second pre-filter 22 that are interconnected. The two-stage filtration system progressively removes particulate impurities from the exhaust gas more thoroughly. This provides a cleaner exhaust gas environment for subsequent spray treatment and activated carbon treatment, reducing impurities from clogging the nozzles in the spray treatment structure 3 and covering the pores of the activated carbon, ensuring efficient operation of subsequent treatment structures, and thus improving the overall exhaust gas treatment effect. The first pre-filter 21 primarily undertakes the initial filtration of larger particulate impurities in the exhaust gas. Its structural design emphasizes efficient interception of large particles and good ventilation performance. The first pre-filter 21 uses a multi-layer stainless steel woven mesh, with the outermost layer being a coarse filter screen with larger pores. Stainless steel has good corrosion resistance, can adapt to the complex chemical environment in wastewater treatment plant exhaust gas, ensures that the filter screen is not easily damaged during long-term use, and extends the filter's service life. The second pre-filter 22 serves as the second line of defense in the pre-filtration process. It focuses on removing smaller particulate impurities remaining in the exhaust gas after it has been treated by the first pre-filter 21. Its structure ensures filtration accuracy while also taking into account reasonable control of the exhaust gas flow rate. Example

[0052] This embodiment provides a control system, which includes a controller electrically connected to the three-way valve 5.

[0053] The controller controls the three-way valve 5. In practical applications, when the composition of the exhaust gas changes significantly—for example, when the gas composition sensor detects a sharp decrease in the concentration of water-soluble pollutants and an increase in particulate impurities—the controller receives the new data, re-analyzes and judges it, and then sends a new command to the three-way valve 5, switching it to connect the first inlet and the second outlet. This allows the exhaust gas to directly enter the activated carbon treatment structure 4, preventing the nozzles in the spray treatment structure 3 from being clogged by impurities, while also saving on the consumption of chemical absorption liquid.

[0054] In a preferred embodiment, the controller not only controls the three-way valve 5, but also adjusts the parameters of other treatment stages, such as the spray treatment structure 3, in real time based on data feedback from sensors. For example, it adjusts the spray pressure and the flow rate of the chemical absorbent liquid according to the concentration of pollutants in the exhaust gas, ensuring that the treatment process is always in optimal condition and further improving the exhaust gas treatment effect.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional activated carbon deodorization device, characterized in that, include: The machine body is provided with a pre-filter structure, and the output port of the pre-filter structure is provided with a three-way valve, which is provided with a first inlet, a first outlet and a second outlet. The machine body is also equipped with a spray treatment structure and an activated carbon treatment structure. The first outlet of the three-way valve is connected to the spray treatment structure, and the second outlet of the three-way valve is connected to the activated carbon treatment structure.

2. The multifunctional activated carbon deodorization device according to claim 1, characterized in that: The spray treatment structure includes an atomizer, an atomizing nozzle, and a water tank. The atomizer and the water tank are both fixed in the machine body. The top of the water tank has an opening, and the atomizing nozzle is located above the water tank and faces the opening at the top of the water tank.

3. The multifunctional activated carbon deodorization device according to claim 2, characterized in that: The water tank is equipped with a partition that divides the water tank into a first liquid storage tank and a second liquid storage tank. Atomizing nozzles are installed above both the first liquid storage tank and the second liquid storage tank.

4. The multifunctional activated carbon deodorization device according to claim 3, characterized in that: Both the first and second liquid storage tanks are equipped with mounting plates, and each mounting plate is equipped with a plurality of liquid level sensors, which are fixed on the mounting plate along the height direction of the mounting plate.

5. The multifunctional activated carbon deodorization device according to claim 2, characterized in that: The activated carbon treatment structure includes a shell, an air inlet at the bottom of the shell, a primary filter at the air inlet, and an activated carbon filter layer inside the shell. A bypass port is provided on one side of the shell, and the bypass port is connected to the water tank.

6. The multifunctional activated carbon deodorization device according to claim 5, characterized in that: The housing has an installation opening on one side wall, a guide rail is provided inside the housing, the activated carbon filter layer includes an installation frame, the installation frame is filled with activated carbon, and the installation frame slides in conjunction with the guide rail.

7. The multifunctional activated carbon deodorization device according to any one of claims 1-6, characterized in that: The pre-filter structure includes a first pre-filter and a second pre-filter that are interconnected, and the outlet of the second pre-filter is connected to the first inlet of the three-way valve.

8. A control system characterized by: Includes a controller, which is electrically connected to the three-way valve as described in claim 1.

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