Odor device dosing device

Abstract

The application relates to an odor equipment dosing device, which is applied to waste gas treatment in tobacco production by cooperation of a dosing assembly, a control assembly, a monitoring assembly and a pipeline assembly, is favorable for realizing accurate dosing of neutralizing agents, effectively neutralizing acidic components in waste gas in tobacco production, improving waste gas treatment efficiency, reducing odor concentration, realizing waste gas purification treatment and improving environmental quality; a pH monitoring unit cooperates with the dosing assembly and the control assembly, is favorable for realizing accurate adjustment of the dosing amount of the agents, ensures that the agents cannot be overdosed or underdosed, improves the utilization rate of the agents, and as much as possible ensures that acidic components in waste liquid in tobacco production are neutralized, thereby as much as possible reducing odor emitted in tobacco production; a liquid level monitoring unit cooperates with the dosing assembly and the control assembly, realizes automation of agent dosing, is favorable for realizing unattended automatic operation of the odor equipment dosing device, and thus reduces manual intervention and saves human resources.

Description

Technical Field

[0001] This application relates to the field of waste gas treatment in the tobacco industry, and in particular to chemical dosing devices for odor-causing equipment. Background Technology

[0002] The tobacco processing process generates acidic waste gas containing volatile organic compounds such as n-pentane, acetone, and vinyl acetate. This acidic waste gas is not only smelly but also pollutes the environment.

[0003] Traditional water washing and cooling demisting processes have limited neutralization capabilities for acidic waste gases, making it difficult to meet environmental emission standards. Utility Model Content

[0004] Therefore, it is necessary to provide a chemical dosing device for odor control equipment.

[0005] One embodiment of this application is an odor control device, which includes a dosing component, a control component, a monitoring component, and a piping component;

[0006] The dosing assembly is connected to the piping assembly, and the dosing assembly is used to connect to the odor control device through the piping assembly;

[0007] The monitoring component includes a pH monitoring unit and a liquid level monitoring unit. The pH monitoring unit is used to monitor the pH value of the liquid in the odor control device. The liquid level monitoring unit is connected to the dosing component and is used to monitor the remaining amount of the dosing agent in the dosing component.

[0008] The control component is connected to the dosing component, the pH monitoring unit, and the liquid level monitoring unit. The control component is used to control the dosing component according to the pH value of the liquid in the odor device and the remaining amount of the dosing component, so as to deliver the agent in the dosing component into the odor device through the pipeline assembly.

[0009] The aforementioned odor control device, through the coordinated use of dosing, control, monitoring, and piping components, is applied to the treatment of waste gas from silk production. On one hand, it facilitates precise dosing of neutralizing agents, effectively neutralizing acidic components in the waste gas, improving waste gas treatment efficiency, reducing odor concentration, achieving waste gas purification, and improving environmental quality. On the other hand, the pH monitoring unit, in conjunction with the dosing and control components, enables precise adjustment of the agent dosage, ensuring that neither too much nor too little agent is added. This not only improves agent utilization but also maximizes the neutralization of acidic components in the waste liquid from silk production, thereby minimizing odor emissions from silk production. On the one hand, the liquid level monitoring unit, together with the dosing and control components, automates the dosing of chemicals, thus facilitating unattended automated operation of the odor control equipment dosing device, reducing manual intervention and saving manpower. On the other hand, the control and dosing components are connected to the odor control equipment through pipeline components, which not only protects the control components from acid gas corrosion, but also simplifies maintenance by requiring only the pipeline components to be addressed, improving convenience and reducing maintenance costs. Furthermore, the overall structure of the odor control equipment dosing device is simple, lacking the tall tower structure of traditional odor control equipment, allowing for a horizontal layout that reduces equipment height and facilitates installation and maintenance.

[0010] In some embodiments, the pH monitoring unit is configured to be located within the odor control device.

[0011] In some embodiments, the pH monitoring unit is configured to be connected to a circulating water pipe for discharging liquid from the odor control device.

[0012] In some embodiments, the dosing assembly includes a drug storage unit, a drug dosing unit, and a drug mixing unit;

[0013] The drug storage unit is connected to the liquid level monitoring unit, the drug dosing unit, and the drug mixing unit respectively, and is used to store drugs;

[0014] The control component is connected to the drug dosing unit and the drug mixing unit respectively;

[0015] The agent dosing unit is used to dispense the agent from the agent storage unit into the odor control device through the pipeline assembly;

[0016] The drug mixing unit is used to mix the drugs in the drug storage unit.

[0017] In some embodiments, the drug storage unit includes a dosing tank, the drug dosing unit includes a metering pump, and the drug mixing unit includes a stirring device.

[0018] In some embodiments, the control component includes a central control unit, a parameter setting module, a mode switching module, a status monitoring module, and a safety protection module;

[0019] The central control unit is connected to the parameter setting module, the mode switching module, the status monitoring module, and the safety protection module, respectively.

[0020] The parameter setting module is connected to the dosing component, the mode switching module, the status monitoring module, the safety protection module, the pH monitoring unit, and the liquid level monitoring unit, respectively.

[0021] The mode switching module is connected to the dosing assembly, the pH monitoring unit, and the liquid level monitoring unit, respectively.

[0022] The status monitoring module is connected to the pH monitoring unit and the liquid level monitoring unit respectively;

[0023] The safety protection module is connected to the dosing assembly.

[0024] In some embodiments, the control component includes a programmable control cabinet, in which the central control unit, the parameter setting module, the mode switching module, the status monitoring module, and the safety protection module are integrated.

[0025] In some embodiments, the piping assembly includes corrosion-resistant dosing pipes and flow regulating valves;

[0026] The agent in the dosing assembly is introduced into the odor control device through the corrosion-resistant dosing pipe, and the flow regulating valve is used to regulate the amount of agent added.

[0027] In some embodiments, the monitoring component is also connected to the piping component for monitoring the connectivity status of the piping component.

[0028] In some embodiments, the pH monitoring unit includes an online pH meter, and the liquid level monitoring unit includes a liquid level sensor. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a schematic diagram illustrating the application of the first embodiment of the odor control device dosing apparatus described in this application.

[0031] Figure 2 This is a schematic diagram of the second embodiment of the odor control device dosing apparatus described in this application.

[0032] Figure 3 This is a schematic diagram of the third embodiment of the odor control device dosing apparatus described in this application.

[0033] Figure 4 This is a schematic diagram illustrating the application of the fourth embodiment of the odor control device dosing apparatus described in this application.

[0034] Figure 5 This is a schematic diagram illustrating the application of the fifth embodiment of the odor control device dosing apparatus described in this application.

[0035] Reference numerals: Odor control device dosing unit 100, dosing tank 101, metering pump 102, stirring device 103, corrosion-resistant dosing pipeline 105, flow regulating valve 106, programmable control cabinet 107, online pH meter 108, liquid level sensor 109, dosing assembly 110, reagent storage unit 111, reagent dosing unit 112, reagent mixing unit 113, control assembly 120, central control unit 121, parameter setting module 122, mode switching module 123, status monitoring module 124, safety protection module 125, monitoring assembly 130, pH monitoring unit 131, liquid level monitoring unit 132, pipeline assembly 140, odor control device 200, circulating water pipeline 300. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0041] This application discloses an odor control device dosing apparatus, which includes some or all of the technical features of the following embodiments; that is, the odor control device dosing apparatus includes some or all of the following structures. In one embodiment of this application, an odor control device dosing apparatus includes a dosing component, a control component, a monitoring component, and a piping component; the dosing component is connected to the piping component and is used to connect to an odor control device through the piping component; the monitoring component includes a pH monitoring unit and a liquid level monitoring unit, the pH monitoring unit is used to monitor the pH value of the liquid in the odor control device, and the liquid level monitoring unit is connected to the dosing component and is used to monitor the remaining amount of the agent in the dosing component; the control component is connected to the dosing component, the pH monitoring unit, and the liquid level monitoring unit, and the control component is used to control the dosing component according to the pH value of the liquid in the odor control device and the remaining amount of the agent in the dosing component, so as to inject the agent in the dosing component into the odor control device through the piping component. The aforementioned odor control device, through the coordinated use of dosing, control, monitoring, and piping components, is applied to the treatment of waste gas from silk production. On one hand, it facilitates precise dosing of neutralizing agents, effectively neutralizing acidic components in the waste gas, improving waste gas treatment efficiency, reducing odor concentration, achieving waste gas purification, and improving environmental quality. On the other hand, the pH monitoring unit, in conjunction with the dosing and control components, enables precise adjustment of the agent dosage, ensuring that neither too much nor too little agent is added. This not only improves agent utilization but also maximizes the neutralization of acidic components in the waste liquid from silk production, thereby minimizing odor emissions from silk production. On the one hand, the liquid level monitoring unit, in conjunction with the dosing and control components, automates the dosing of chemicals, thus facilitating unattended automated operation of the odor control equipment dosing device, reducing manual intervention and saving manpower. On the other hand, the control and dosing components are connected to the odor control equipment via piping, which not only protects the control components from acid gas corrosion but also simplifies maintenance by requiring only the piping components to be addressed, improving convenience and reducing costs. Furthermore, the overall structure of the odor control equipment dosing device is simple; unlike traditional odor control equipment with its tall tower structure, a horizontal layout can be adopted, reducing equipment height and facilitating installation and maintenance. The following section will combine... Figures 1 to 5 The odor control device is described in detail below.

[0042] In some embodiments, an odor control device dosing apparatus 100, such as... Figure 1As shown, it includes a dosing assembly 110, a control assembly 120, a monitoring assembly 130, and a piping assembly 140; the dosing assembly 110 is connected to the piping assembly 140, and the dosing assembly 110 is used to connect to the odor control device 200 through the piping assembly 140; the monitoring assembly 130 includes a pH monitoring unit 131 and a liquid level monitoring unit 132, the pH monitoring unit 131 is used to monitor the pH value of the liquid in the odor control device 200, and the liquid level monitoring unit 132 is connected to the dosing assembly 110. The dosing component 110 is used to monitor the remaining amount of the dosing agent in the dosing component 110; the control component 120 is connected to the dosing component 110, the pH monitoring unit 131 and the liquid level monitoring unit 132. The control component 120 is used to control the dosing component 110 according to the pH value of the liquid in the odor device 200 and the remaining amount of the dosing agent in the dosing component 110, so as to add the agent in the dosing component 110 into the odor device 200 through the pipeline component 140.

[0043] This structural design, through the cooperation of the dosing component 110, control component 120, monitoring component 130, and piping component 140, is applied to the treatment of waste gas from silk production. On the one hand, it facilitates precise dosing of neutralizing agents, effectively neutralizing acidic components in the waste gas, improving waste gas treatment efficiency, reducing odor concentration, achieving waste gas purification, and improving environmental quality. On the other hand, the pH monitoring unit 131, in conjunction with the dosing component 110 and control component 120, facilitates precise adjustment of the agent dosage, ensuring that the agent is neither over- or under-dosed, not only improving agent utilization but also maximizing the neutralization of acidic components in the waste liquid from silk production, thereby minimizing odor emitted during silk production. Furthermore, the liquid level monitoring unit... The 132, in conjunction with the dosing component 110 and the control component 120, automates the dosing of chemicals, thereby facilitating unattended automated operation of the odor equipment dosing device 100, reducing manual intervention and saving manpower. Furthermore, the control component 120 and the dosing component 110 are connected to the odor equipment 200 via the pipeline component 140, which not only protects the control component 120 from acid gas corrosion but also simplifies maintenance by requiring only the maintenance of the pipeline component 140, improving convenience and reducing costs. Moreover, the odor equipment dosing device 100 has a simple overall structure, lacking the tall tower structure of the odor equipment 200, allowing for a horizontal layout, reducing equipment height and facilitating installation and maintenance.

[0044] It should be noted that in each embodiment, the dosing component 110, control component 120, pipeline component 140, monitoring component 130 and its pH monitoring unit 131 and liquid level monitoring unit 132, as well as the dosing tank 101, metering pump 102, stirring device 103, corrosion-resistant dosing pipeline 105, flow regulating valve 106, programmable control cabinet 107, online pH meter 108, liquid level sensor 109, central control unit 121, parameter setting module 122, mode switching module 123, status monitoring module 124 and safety protection module 125 mentioned below, can all be purchased directly from the market or can be made in-house. The embodiments of this application only connect and combine these structural components in an innovative way, and do not involve the redevelopment of data transmission or information control. That is, the innovation of the embodiments of this application lies in the position setting and interconnection of these structural components.

[0045] In each embodiment, the dosing component 110 is connected to the control component 120, the monitoring component 130, and the piping component 140, respectively. The dosing component 110 is connected to the odor control device 200 via the piping component 140 to add the agent from the dosing component 110 to the odor control device 200. Since the agent neutralizes the acid in the odor control device 200, it is typically an alkaline agent, also known as a neutralizing agent. To achieve a better neutralization effect, the agent is typically liquid, but can be gaseous if necessary. As an example, the odor control device dosing apparatus 100 also includes a spray device disposed in the odor control device 200. The dosing component 110 is connected to the spray device via the piping component 140 to spray the liquid agent into the odor control device 200 through the spray device.

[0046] This design offers several advantages. First, the spray device evenly distributes the liquid agent into the odor control equipment 200, significantly increasing the contact area between the agent and the acid, allowing for a more complete neutralization reaction, further improving acid neutralization efficiency, reducing odor from unneutralized acid, and enhancing the exhaust gas purification effect. Second, the liquid agent is delivered to the spray device via the pipeline assembly 140. Combined with the synergistic effect of the dosing assembly 110 and the control assembly 120, and based on the pH value of the acid fed back by the pH monitoring unit 131, the spray volume can be precisely controlled, preventing agent waste or incomplete neutralization and improving agent utilization. Third, the spray device is integrated into the odor control equipment 200, eliminating the need for additional complex structures. It is more compatible with the horizontally laid-out dosing device 100 of the odor control equipment, without increasing the overall height of the equipment, making agent dosing more convenient. Subsequent maintenance of the spray device can be carried out simultaneously with the pipeline assembly 140, reducing maintenance difficulty and cost.

[0047] In various embodiments, the monitoring component 130 includes a pH monitoring unit 131 and a liquid level monitoring unit 132. The pH monitoring unit 131 is used to monitor the pH value of the liquid in the odor control device 200. In some embodiments, the pH monitoring unit 131 is configured to be located within the odor control device 200. Alternatively, in some embodiments, the pH monitoring unit 131 is configured to be connected to a circulating water pipe 300 for discharging liquid from the odor control device 200. As an example, the pH monitoring unit 131 is also located in the dosing component 110, and the control component 120 is configured to adjust the dosage of the dosing component 110 based on a first pH value of the agent in the dosing component 110 and a second pH value of the liquid in the odor control device 200.

[0048] This design, on the one hand, allows the pH monitoring unit 131 to be directly installed in the odor control device 200, enabling real-time and accurate capture of the secondary pH value of the liquid inside the device. This avoids the lag caused by external monitoring and provides the most direct parameter basis for the control component 120 to adjust the dosage of the dosing component 110, ensuring that the acid neutralization reaction inside the odor control device 200 is always in the optimal state, further improving the efficiency of waste gas treatment. On the other hand, connecting it to the circulating water pipe 300 allows for secondary monitoring of the pH value of the liquid flowing out of the odor control device 200, forming a dual monitoring mechanism. If the pH value of the circulating water does not meet the standard, the control component 120 can adjust the dosage in a timely manner to prevent secondary pollution caused by the discharge of insufficiently neutralized liquid, thus ensuring the stability of the treatment effect. On the other hand, a pH monitoring unit 131 is added to the dosing assembly 110 to obtain the first pH value of the agent. By comparing the first pH value with the second pH value, the control assembly 120 can accurately calculate the required amount of agent to be added, avoiding the problem of over- or under-dosing due to fluctuations in the acidity or alkalinity of the agent itself. This improves the utilization rate of the agent and ensures that the acid in the odor control equipment 200 is thoroughly neutralized, reducing odor emissions. At the same time, the flexible configuration of multiple pH monitoring positions can adapt to different operating conditions without requiring major modifications to the overall structure of the odor control equipment dosing device 100. It is highly compatible with the existing pipeline assembly 140 and control assembly 120. Maintenance only requires inspection of the monitoring unit, further reducing maintenance costs and difficulty.

[0049] In each embodiment, such as Figure 4 or Figure 5As shown, the liquid level monitoring unit 132 is connected to the dosing assembly 110 and is used to monitor the remaining amount of medicine in the dosing assembly 110. In some embodiments, the pH monitoring unit 131 includes an online pH meter 108, and the liquid level monitoring unit 132 includes a liquid level sensor 109. As an example, the odor control device dosing apparatus 100 also includes an alarm, such as an alarm light or alarm bell, connected to the control assembly 120. The liquid level sensor 109 senses the remaining amount of medicine in the dosing assembly 110, and when the remaining amount of medicine is insufficient, the control assembly 120 triggers an alarm through the alarm, for example, by emitting an alarm sound or flashing a light.

[0050] This structural design serves two purposes. First, the pH monitoring unit 131 is configured as an online pH meter 108, which can monitor the pH value of the liquid in the odor control device 200 in real time and continuously. Compared with offline monitoring methods, this avoids the parameter lag problem caused by monitoring intervals, providing real-time data support for the control component 120 to accurately regulate the dosage of the dosing component 110, further ensuring the neutralization effect of the acid solution and reducing the problem of increased odor concentration caused by untimely pH monitoring. Second, the liquid level monitoring unit 132 uses a liquid level sensor 109, which can accurately capture the remaining amount of the agent in the dosing component 110, avoiding visual errors or omissions during manual inspection, ensuring the accuracy of the remaining agent data, and providing a reliable basis for subsequent automated control and alarms. On the other hand, by connecting the control component 120 to alarms such as alarm lights and alarm bells, when the liquid level sensor 109 detects insufficient reagent in the dosing component 110, the control component 120 can promptly trigger the alarm to sound or flash, quickly reminding staff to replenish the reagent and avoid interruption of dosing due to reagent depletion. This prevents the acid in the odor control equipment 200 from failing to neutralize in time, thus avoiding the problem of exhaust gas treatment failure. At the same time, this alarm mechanism does not require continuous manual monitoring of the reagent level, further reducing labor costs. The alarm method is also intuitive and eye-catching, reducing the risk of equipment operation failure caused by staff not noticing insufficient reagent in time. In addition, the combination of the online pH meter 108 and the liquid level sensor 109, together with the control component 120 and the alarm, forms a complete monitoring, control, and early warning system. The system is fully adapted to the automated operation requirements of the odor control equipment dosing device 100, and its simple structure makes it easy to integrate without adding extra complexity to the equipment. Maintenance only requires inspection of a single component, improving maintenance convenience.

[0051] In various embodiments, the control component 120 is connected to the dosing component 110, the pH monitoring unit 131, and the liquid level monitoring unit 132. The control component 120 is used to control the dosing component 110 according to the pH value of the liquid in the odor device 200 and the remaining amount of the agent in the dosing component 110, so as to add the agent in the dosing component 110 into the odor device 200 through the pipeline assembly 140. In some embodiments, the monitoring component 130 is also connected to the pipeline assembly 140 for monitoring the connectivity status of the pipeline assembly 140. In some embodiments, such as... Figure 4 or Figure 5 As shown, the pipeline assembly 140 includes a corrosion-resistant dosing pipe 105 and a flow regulating valve 106; the agent in the dosing assembly 110 is injected into the odor control device 200 through the corrosion-resistant dosing pipe 105, and the flow regulating valve 106 is used to regulate the amount of agent injected.

[0052] This structural design serves two purposes. First, the monitoring component 130 connects to the pipeline component 140 to monitor its connectivity, enabling real-time detection of abnormalities such as pipeline blockage and leakage. This prevents the agent from failing to be delivered to the odor control device 200 due to pipeline blockage, thus preventing the interruption of acid neutralization and the resulting increase in odor concentration. Timely detection of leaks also reduces agent waste and secondary environmental pollution, ensuring the stability of the device's operation. Second, the pipeline component 140 uses corrosion-resistant dosing pipes 105, which can resist the erosion of the agent and acid within the odor control device 200, extending the service life of the pipes and reducing the frequency and cost of maintenance due to pipeline corrosion, ensuring the long-term reliability of the agent delivery channel. On the other hand, by adjusting the dosage of the agent through the flow regulating valve 106, a dual control mechanism can be formed in conjunction with the control component 120 and the pH monitoring unit 131: after the control component 120 determines the target dosage based on the pH value, the flow regulating valve 106 can accurately perform dosage adjustment to avoid over- or under-dosing of the agent, further improving the agent utilization rate, while ensuring that the acid in the odor control device 200 is completely neutralized, reducing the emission of odor.

[0053] In some of these embodiments, such as Figure 2As shown, the dosing assembly 110 includes a drug storage unit 111, a drug dosing unit 112, and a drug mixing unit 113. The drug storage unit 111 is connected to the liquid level monitoring unit 132, the drug dosing unit 112, and the drug mixing unit 113, respectively, and is used to store the drug. The control assembly 120 is connected to the drug dosing unit 112 and the drug mixing unit 113, respectively. The drug dosing unit 112 is used to add the drug from the drug storage unit 111 into the odor control device 200 through the pipeline assembly 140. The drug mixing unit 113 is used to mix the drug from the drug storage unit 111. In some embodiments, combined with... Figure 4 or Figure 5 The drug storage unit 111 includes a drug dosing tank 101, the drug dosing unit 112 includes a metering pump 102, and the drug mixing unit 113 includes a stirring device 103.

[0054] This structural design divides the dosing assembly 110 into a reagent storage unit 111, a reagent dosing unit 112, and a reagent mixing unit 113. Each unit has a clearly defined function and works in concert, allowing the storage, mixing, and dosing of reagents to form a complete process. This avoids operational failures caused by overloading of a single component, improves the overall operational stability of the dosing assembly 110, and thus ensures the continuity of acid neutralization in the odor control equipment 200. The reagent storage unit 111 is connected to the liquid level monitoring unit 132, which can provide real-time feedback on the remaining reagent level, providing a basis for the control assembly 120 to determine whether to replenish the reagent, preventing the waste gas treatment from being affected by reagent supply interruptions. On the other hand, the control component 120 is connected to the agent dosing unit 112 and the agent mixing unit 113 respectively. It can synchronously adjust the uniformity of agent mixing and the dosage based on the pH value of the liquid in the odor device 200 fed back by the pH monitoring unit 131. The agent mixing unit 113 ensures consistent agent concentration and avoids incomplete neutralization due to uneven agent distribution. The agent dosing unit 112 accurately delivers the corresponding dosage of agent, which improves agent utilization, ensures acid neutralization effect, and reduces odor emission. Furthermore, the agent storage unit 111 is used as the agent storage tank 101, with a capacity adapted to the horizontal layout of the odor device dosing device 100, eliminating the need for additional height equipment and facilitating agent replenishment by staff. The metering pump 102 is used as the agent dosing unit 112, which can accurately control the agent delivery amount, significantly reducing dosage error compared to traditional manual dosing. The stirring device 103 is used as the agent mixing unit 113, which can efficiently mix the agent and avoid agent precipitation affecting neutralization efficiency. The combination of these three components not only makes the structure of the dosing component 110 simpler and easier to manufacture and assemble, but also allows for subsequent maintenance operations on individual components, such as replacing the metering pump or overhauling the mixing device, without disassembling the entire component. This reduces maintenance difficulty and costs, and further adapts to the unattended automated operation requirements of the device.

[0055] In some of these embodiments, such as Figure 3 As shown, the control component 120 includes a central control unit 121, a parameter setting module 122, a mode switching module 123, a status monitoring module 124, and a safety protection module 125. The central control unit 121 is connected to the parameter setting module 122, the mode switching module 123, the status monitoring module 124, and the safety protection module 125. The parameter setting module 122 is connected to the dosing component 110, the mode switching module 123, the status monitoring module 124, the safety protection module 125, the pH monitoring unit 131, and the liquid level monitoring unit 132. The mode switching module 123 is connected to the dosing component 110, the pH monitoring unit 131, and the liquid level monitoring unit 132. The status monitoring module 124 is connected to the pH monitoring unit 131 and the liquid level monitoring unit 132. The safety protection module 125 is connected to the dosing component 110.

[0056] This structural design, on the one hand, refines the control component 120 into a central control unit 121, a parameter setting module 122, a mode switching module 123, a status monitoring module 124, and a safety protection module 125. Each module has a clear division of labor and forms a coordinated linkage through the central control unit 121, avoiding the control delay or failure caused by the overload of a single control module, greatly improving the operational stability and accuracy of the control component 120, and providing core guarantee for the automated operation of the odor equipment dosing device 100.

[0057] On the other hand, the parameter setting module 122 is widely connected to the dosing component 110, pH monitoring unit 131, and liquid level monitoring unit 132. Operators can preset key parameters such as pH threshold, maximum dosage, and liquid level warning value according to the acid treatment requirements of the odor control equipment 200. This allows the device to operate according to customized standards, avoiding dosing deviations caused by ambiguous parameters, ensuring stable acid neutralization, and further reducing odor concentration. Simultaneously, the status monitoring module 124 connects in real-time to the pH monitoring unit 131 and liquid level monitoring unit 132, synchronously collecting acid pH value and remaining dosage data and feeding it back to the central control unit 121. This allows operators to monitor the device's operating status in real time, promptly detect anomalies such as sudden pH changes or abnormal remaining dosage, and reduce troubleshooting time.

[0058] On the other hand, the mode switching module 123 connects the dosing assembly 110 with each monitoring unit, supporting switching between multiple operating modes such as automatic and manual. Under normal operating conditions, the automatic mode can be enabled, allowing the device to autonomously adjust the dosing based on monitoring data. During maintenance or special operating conditions, it can be switched to manual mode, allowing operators to directly control the dosing assembly 110, improving the device's adaptability and operational flexibility. Furthermore, the safety protection module 125 is specifically connected to the dosing assembly 110. When risks such as overpressure, reagent leakage, or pH exceeding the safe range are detected in the dosing assembly 110, it can quickly trigger shutdown or dosing interruption protection to prevent device damage or direct discharge of untreated acid, ensuring equipment and environmental safety. Overall, the multi-module collaborative control structure strengthens the overall control of the dosing process, improves the device's operability and safety, further adapts to unattended operation requirements, and allows each module to operate independently, facilitating individual maintenance and reducing maintenance costs and complexity.

[0059] As an example, the central control unit 121, such as an MCU, industrial computer, or control board, is used to implement control functions. As an example, the parameter setting module 122 can be set independently or as part of the central control unit 121, and is used to set or adjust the operating parameters or start / stop conditions of the dosing assembly 110, the mode switching module 123, the status monitoring module 124, the safety protection module 125, the pH monitoring unit 131, and the liquid level monitoring unit 132. As an example, the mode switching module 123 can be set independently or as part of the central control unit 121, and is used to set or adjust the operating modes of the dosing assembly 110, the pH monitoring unit 131, and the liquid level monitoring unit 132. The specific operating mode can be set according to the actual situation, such as switching between automatic and manual operating modes. As an example, the status monitoring module 124 can be set up independently or as part of the central control unit 121, and is used to determine the pH status of the odor control device 200 and the remaining dosage status of the dosing assembly 110 based on the pH value provided by the pH monitoring unit 131 and the remaining dosage provided by the liquid level monitoring unit 132. As an example, the safety protection module 125 can be set up independently or as part of the central control unit 121, and is used to provide protection based on the current status of the dosing assembly 110, such as overheat protection, low dosage protection, etc. As an example, the safety protection module 125 is also connected to the odor control device 200, and is used to provide protection based on the current status of the odor control device 200, such as overpressure protection and overfill protection. In some embodiments, such as... Figure 4 or Figure 5As shown, the control component 120 includes a programmable control cabinet 107, in which the central control unit 121, the parameter setting module 122, the mode switching module 123, the status monitoring module 124, and the safety protection module 125 are integrated.

[0060] This structural design ensures that the central control unit 121 adopts mature hardware such as MCU, industrial computer or control board to ensure stable and reliable control function. As the core of control component 120, it can efficiently receive data from various modules and monitoring units and issue instructions, avoiding control delays caused by insufficient core hardware performance. This provides solid hardware support for the automated operation of odor equipment dosing device 100 and ensures the continuity and accuracy of acid neutralization process.

[0061] On the other hand, the parameter setting module 122 supports individual settings or integration into the central control unit 121, offering high flexibility: when set individually, operators can directly adjust parameters such as the dosage threshold of the dosing component 110 and the warning range of the pH monitoring unit 131, making operation more intuitive; when integrated, it reduces the space occupied by components and adapts to the horizontal layout of the device. By precisely setting the operating parameters and start / stop conditions of each component through this module, over- or under-dosing due to parameter confusion can be avoided, ensuring that the agent can efficiently neutralize the acid in the odor control equipment 200, reduce the odor concentration, and improve the agent utilization rate.

[0062] On the other hand, the mode switching module 123 also supports flexible deployment and can switch between automatic or manual operation modes according to actual working conditions: during normal production, the automatic mode is activated, and the device automatically adjusts the dosing according to the pH value and the remaining amount of reagent, realizing unattended operation and saving manpower; when the equipment is being maintained or when dealing with emergencies, the manual mode is switched, and the staff can directly control the dosing component 110 and the monitoring unit, avoiding the impact of the fixed logic of the automatic mode on emergency handling, and greatly improving the adaptability and operational flexibility of the device.

[0063] On the other hand, the status monitoring module 124, by analyzing the data from the pH monitoring unit 131 and the liquid level monitoring unit 132, can clearly determine the acid neutralization status of the odor control device 200 and the remaining reagent status of the dosing component 110. This transforms abstract data into intuitive operational status feedback, allowing staff to quickly grasp the device's status and promptly identify problems such as abnormal pH values ​​or insufficient reagent levels, reducing troubleshooting time and lowering the risk of equipment downtime. The safety protection module 125 not only provides overheat and low reagent level protection for the dosing component 110 but also provides overpressure and overfill protection for the odor control device 200, forming a comprehensive safety protection system. This prevents reagent leakage, equipment damage, or untreated acid discharge due to component failure, ensuring equipment and environmental safety. Furthermore, its flexible deployment method further enhances the structural adaptability of the control component 120. Furthermore, the embodiment of integrating core modules such as the central control unit 121 into the programmable control cabinet 107 facilitates centralized management of control components, reduces wiring clutter, lowers the risk of acid gas corrosion to electronic components, and extends component lifespan. Moreover, the centralized layout makes maintenance more convenient, requiring staff to inspect only specific modules within the control cabinet without needing to conduct separate inspections, significantly reducing maintenance difficulty and costs.

[0064] The following will continue to combine Figures 1 to 5 Examples are provided below. In some embodiments, the odor control device 100 includes a dosing component 110, a control component 120, a monitoring component 130, and a piping component 140. The dosing component 110 includes a 2000L dosing tank 101, two 310L / h metering pumps 102, and a stirring device 103. The piping component 140 is equipped with corrosion-resistant dosing pipes 105. Alternatively, the piping component 140 can be part of the dosing component 110. The control component 120 includes a programmable control cabinet 107, i.e., a PLC control cabinet, which integrates a human-machine interface, supports automatic or manual control mode switching, and has parameter setting, status monitoring, and safety protection functions. The monitoring component 130 includes an online pH meter 108 and a liquid level sensor 109 to realize real-time monitoring of the pH value in the spray tower and the liquid level in the dosing tank 101.

[0065] As an example, the control component 120 uses a PID control algorithm to adjust the output flow of the metering pump 102 based on the feedback signal from the online pH meter 108, maintaining the pH value of the circulating water in the spray tower within the range of 6.5 to 7.0; the dosing tank 101 is equipped with a liquid level interlock protection, and when the liquid level is lower than 0.2m, the control component 120 stops the operation of the metering pump 102 and triggers an alarm.

[0066] As an example, the reagent is an aqueous solution of sodium carbonate, i.e., Na2CO3, with a mass concentration of 10% to 15%, and is added in a stepless adjustment range of 0 to 310 L / h by a metering pump 102.

[0067] As an example, the dosing assembly 110 includes a reagent storage unit 111, a reagent dosing unit 112, and a reagent mixing unit 113. The reagent storage unit 111 uses a 2000L capacity dosing tank 101 to store sodium carbonate reagent. The reagent dosing unit 112 is equipped with two metering pumps 102 with a flow rate of 310L / h, which are connected to the spray tower through pipelines to achieve precise dosing of sodium carbonate solution. The reagent mixing unit 113 is equipped with a stirring device 103 inside the dosing tank 101 to ensure that the reagent is fully dissolved and maintains uniform concentration.

[0068] As an example, the pipeline assembly 140 includes a corrosion-resistant dosing pipe 105 and a flow regulating valve 106. The corrosion-resistant dosing pipe 105 is made of corrosion-resistant material, and the flow regulating valve 106 enables precise control of the dosing amount.

[0069] As an example, the control component 120 includes a central control unit 121, a parameter setting module 122, a mode switching module 123, a status monitoring module 124, and a safety protection module 125. The central control unit 121 can be a programmable control cabinet 107 built using a programmable logic controller (PLC), or it can be part of a programmable control cabinet 107, which integrates a human-machine interface. The parameter setting module 122 has a human-machine interface (HMI); through the HMI, process parameters such as the start / stop threshold of the dosing pump, the interlock protection value of the liquid level in the dosing tank 101, and the operating cycle of the stirring device 103 can be set. The mode switching module 123 supports switching between automatic and manual operation modes. The status monitoring module 124 displays key parameters such as the operating status of the dosing pump, the working status of the stirring device 103, the liquid level in the dosing tank 101, and the pH value in the spray tower in real time. The safety protection module 125 has a fault self-diagnosis function; when the equipment experiences abnormal operating conditions, it triggers an audible and visual alarm and displays a fault code.

[0070] As an example, pH monitoring unit 131 installs an online pH meter 108 on the circulating water pipeline 300 of the spray tower to monitor the pH value of the circulating water in real time. Liquid level monitoring unit 132 installs a liquid level sensor 109 in the dosing tank 101 to achieve continuous monitoring of the liquid level.

[0071] This structural design achieves precise dosage adjustment through online pH monitoring and PID control algorithms. Compared to traditional timed or quantitative dosing, the reagent utilization rate is increased by more than 30%, thus realizing precise dosing control. Furthermore, the use of PLC control component 120 enables 24-hour unattended operation, reducing manual intervention by 80% compared to the comparative example. Additionally, multiple safety mechanisms, including liquid level interlocking, overload protection, and fault alarms, provide comprehensive safety protection, achieving a 99.5% reliability rate in testing. Moreover, the prototype has been verified by a third-party testing agency, showing a 58% reduction in exhaust odor concentration after commissioning, meeting the requirements of GB 14554-93's "Odor Pollutant Emission Standard." As an example, the dosing component 110 uses sodium carbonate as a neutralizing agent, reducing reagent costs by 25% compared to the traditional sodium hydroxide solution, resulting in annual operating cost savings of 120,000 yuan.

[0072] The odor dosing device 100 belongs to the field of tobacco industry waste gas treatment technology. This odor dosing device 100 is applied to the treatment of waste gas from tobacco processing. Through the control component 120, it achieves automatic and precise dosing of alkaline agents, effectively neutralizing acidic components in the waste gas, reducing odor concentration, and thus achieving waste gas purification and improving environmental quality. As an example, the odor dosing device 100 adopts a horizontal structure design, reducing equipment height, facilitating installation and maintenance, and optimizing energy consumption management, resulting in significant environmental and economic benefits. Further illustrative examples are provided below.

[0073] The following is an example of equipment installation and commissioning.

[0074] Install the dosing tank 101 near the spray tower and connect the corrosion-resistant dosing pipe 105 to the spray tower's circulating water inlet.

[0075] An online pH meter 108 is installed on the circulating water pipe 300 of the spray tower, and a liquid level sensor 109 is installed inside the dosing tank 101.

[0076] Connect electrical equipment such as metering pump 102 and programmable control cabinet 107 to the power supply to complete the airtightness test of pipeline assembly 140.

[0077] Initial parameters are set via the HMI in the programmable control cabinet 107, such as a lower pH limit of 6.5, an upper pH limit of 7.0, and a liquid level interlock protection value of 0.2m for the dosing tank 101.

[0078] An example of the automatic operation mode is explained below.

[0079] Select the automatic operation mode in the HMI of the programmable control cabinet 107 and start the stirring device 103 to premix the sodium carbonate solution in the dosing tank 101.

[0080] When the pH value in the spray tower is lower than 6.5, the control component 120 automatically starts the metering pump 102 and adds the agent at a preset flow rate, such as 200L / h.

[0081] As the reagent is added, the pH value of the circulating water gradually increases. When it reaches 7.0, the control component 120 stops the operation of the metering pump 102.

[0082] When the liquid level in the dosing tank 101 drops to 0.2m, the control component 120 triggers a low liquid level alarm and stops all dosing operations.

[0083] The following is an example of a manual maintenance operation.

[0084] Switching the HMI in the programmable control cabinet 107 to manual mode allows for the start or stop of the metering pump 102 and the stirring device 103, respectively.

[0085] Regularly check the equipment operation records through the HMI, including information such as dosage, running time, and fault codes.

[0086] When an abnormality occurs in the online pH meter 108, the calibration procedure can be initiated via the HMI, and a three-point calibration can be performed using a standard buffer solution.

[0087] It should be noted that other embodiments of this application also include an odor control device dosing apparatus formed by combining the technical features of the above embodiments.

[0088] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An odor control device dosing apparatus (100), characterized in that, It includes a dosing assembly (110), a control assembly (120), a monitoring assembly (130), and a piping assembly (140). The dosing assembly (110) is connected to the piping assembly (140), and the dosing assembly (110) is used to connect to the odor control device (200) through the piping assembly (140). The monitoring component (130) includes a pH monitoring unit (131) and a liquid level monitoring unit (132). The pH monitoring unit (131) is used to monitor the pH value of the liquid in the odor device (200). The liquid level monitoring unit (132) is connected to the dosing component (110) and is used to monitor the remaining amount of the dosing agent in the dosing component (110). The control component (120) is connected to the dosing component (110), the pH monitoring unit (131) and the liquid level monitoring unit (132). The control component (120) is used to control the dosing component (110) according to the pH value of the liquid in the odor device (200) and the remaining amount of the agent in the dosing component (110) so as to inject the agent in the dosing component (110) into the odor device (200) through the pipeline component (140).

2. The odor control device (100) according to claim 1, characterized in that, The pH monitoring unit (131) is configured to be located in the odor device (200).

3. The odor control device (100) according to claim 1, characterized in that, The pH monitoring unit (131) is configured to be connected to a circulating water pipe (300) for discharging liquid from the odor control device (200).

4. The odor control device (100) according to claim 1, characterized in that, The dosing assembly (110) includes a drug storage unit (111), a drug dosing unit (112), and a drug mixing unit (113). The drug storage unit (111) is connected to the liquid level monitoring unit (132), the drug dosing unit (112) and the drug mixing unit (113) respectively, and is used to store drugs; The control component (120) is connected to the drug dosing unit (112) and the drug mixing unit (113) respectively. The agent dosing unit (112) is used to dispense the agent in the agent storage unit (111) into the odor control device (200) through the pipeline assembly (140); The drug mixing unit (113) is used to mix the drugs in the drug storage unit (111).

5. The odor control device (100) according to claim 4, characterized in that, The drug storage unit (111) includes a drug dosing tank (101), the drug dosing unit (112) includes a metering pump (102), and the drug mixing unit (113) includes a stirring device (103).

6. The odor control device (100) according to claim 1, characterized in that, The control component (120) includes a central control unit (121), a parameter setting module (122), a mode switching module (123), a status monitoring module (124), and a safety protection module (125). The central control unit (121) is connected to the parameter setting module (122), the mode switching module (123), the status monitoring module (124), and the safety protection module (125), respectively. The parameter setting module (122) is connected to the dosing component (110), the mode switching module (123), the status monitoring module (124), the safety protection module (125), the pH monitoring unit (131), and the liquid level monitoring unit (132), respectively. The mode switching module (123) is connected to the dosing assembly (110), the pH monitoring unit (131) and the liquid level monitoring unit (132) respectively. The status monitoring module (124) is connected to the pH monitoring unit (131) and the liquid level monitoring unit (132) respectively. The safety protection module (125) is connected to the dosing assembly (110).

7. The odor control device (100) according to claim 6, characterized in that, The control component (120) includes a programmable control cabinet (107), in which the central control unit (121), the parameter setting module (122), the mode switching module (123), the status monitoring module (124), and the safety protection module (125) are integrated.

8. The odor control device (100) according to claim 1, characterized in that, The pipeline assembly (140) includes a corrosion-resistant dosing pipeline (105) and a flow regulating valve (106). The agent in the dosing assembly (110) is introduced into the odor control device (200) through the corrosion-resistant dosing pipe (105), and the flow regulating valve (106) is used to regulate the amount of agent added.

9. The odor control device (100) according to claim 1, characterized in that, The monitoring component (130) is also connected to the pipeline component (140) for monitoring the connectivity status of the pipeline component (140).

10. The odor control device dosing apparatus (100) according to any one of claims 1 to 9, characterized in that, The pH monitoring unit (131) includes an online pH meter (108), and the liquid level monitoring unit (132) includes a liquid level sensor (109).

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