A medicine supply and deodorization system based on PLC wireless control

The PLC-controlled wireless deodorization system enables automatic dilution and distribution of chemicals. Combined with environmental monitoring and video surveillance, it solves the problems of high labor intensity and slow response of deodorization equipment in waste treatment sites, and improves the accuracy of deodorization operations and the efficiency of resource utilization.

CN224585669UActive Publication Date: 2026-08-04上海环境工程技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
上海环境工程技术有限公司
Filing Date
2025-08-22
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing deodorization equipment in waste treatment plants requires frequent manual refilling, which is labor-intensive and involves a fixed dilution ratio, resulting in resource waste and poor deodorization effect. It is also difficult to respond accurately in complex environments and emergency situations.

Method used

The drug supply and deodorization system, which adopts PLC wireless control, realizes automatic dilution and distribution of drugs through a centralized drug supply device. Combined with environmental monitoring and video surveillance, it dynamically adjusts the drug ratio and equipment operation, and builds a global perception network.

Benefits of technology

It significantly reduces the intensity of manual intervention, reduces resource waste, and improves the accuracy and efficiency of deodorization response, solving the problems of high labor costs and slow response in traditional deodorization modes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of supply medicine deodorization systems based on PLC wireless control, comprising: supply medicine device, deodorization execution device;The supply medicine device includes stock solution bucket, diluent bucket, dosing pump of adding medicine;Wherein the outlet pipe of dosing pump is connected to the inlet pipe of the outlet of stock solution bucket bottom, the inlet pipe of diluent bucket upper portion is connected to the outlet of dosing pump, the dosing pump of adding medicine is located in the lateral wall of the supply medicine device, and the adjustment of the dilution ratio of medicament in supply medicine device is realized;The medicament inlet of a plurality of the deodorization execution device is connected to the supply medicine branch pipe of the supply medicine device;The control cabinet of built-in PLC controller is provided at one side of the supply medicine device, the PLC controller is signal connected with wireless control module, realizes the remote monitoring and automatic control of system.
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Description

Technical Field

[0001] This utility model relates to the field of landfill treatment technology, specifically to a drug supply and deodorization system based on PLC wireless control. Background Technology

[0002] In large-scale waste treatment or similar industrial sites, due to the vast area they cover, a large number of deodorization devices are typically deployed to address the widespread need for air quality improvement. However, with the increase in the number and distribution of deodorization devices, current deodorization operation models are gradually revealing numerous problems.

[0003] On the one hand, deodorization operations require frequent patrols and dosing of chemicals. This process is not only labor-intensive and consumes a significant amount of human resources, but also, due to the limitations of manual operation, it is difficult to monitor the equipment's operating status in real time and accurately. This necessitates even more manpower for equipment inspections, further increasing operating costs. On the other hand, in traditional deodorization operations, the dilution ratio of deodorants is often fixed, relying mainly on manual adjustments based on experience. This approach lacks flexibility and is prone to results from personnel's operating habits leading to prolonged periods without adjustments, resulting in resource waste. Furthermore, deodorants with fixed dilution ratios cannot respond promptly and effectively to complex and changing environmental conditions, impacting the overall deodorization effect.

[0004] Especially in emergency deodorization operations, such as at night or in scenarios with poor visibility or requiring rapid response, the use of mobile deodorizing cannons becomes particularly important. However, due to the lack of effective real-time monitoring methods, operations management departments find it difficult to accurately grasp the operating path and spraying status of mobile cannons, introducing uncertainty into emergency management work. Furthermore, the variability of wind direction affects the deodorization effect of fixed deodorizing cannons; when the wind direction does not match the layout of the deodorization equipment, the deodorization effect will decrease significantly, leading to a substantial waste of deodorizing agent resources.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The purpose of this invention is to provide a drug supply and deodorization system based on PLC wireless control. It realizes automatic dilution and distribution of drugs through a centralized drug supply device, replacing manual drug preparation. By combining the PLC control cabinet and the wireless module to build a remote monitoring network, the drug preparation and equipment operation can be dynamically adjusted according to environmental parameters, ultimately reducing operation and maintenance costs and improving the accuracy of deodorization response.

[0007] To achieve the above objectives, this application provides a drug supply and deodorization system based on PLC wireless control, comprising: a drug supply device and a deodorization execution device; The drug supply device includes a stock solution tank, a diluent tank, and a dosing pump; wherein the outlet at the bottom of the stock solution tank is connected to the inlet pipe of the dosing pump, the outlet of the dosing pump is connected to the upper inlet of the diluent tank, and the dosing pump is located on the side wall of the drug supply device to adjust the dilution ratio of the drug in the drug supply device; the drug supply device is connected to the drug inlets of multiple deodorizing actuators through a drug supply branch pipe. A control cabinet with a built-in PLC controller is installed on one side of the drug supply device. The PLC controller is connected to the wireless control module to realize remote monitoring and automated control of the system.

[0008] Furthermore, the top of the diluent tank is provided with an inlet, which is connected to an electric inlet valve via a water supply pipe. The other end of the electric inlet valve is connected to a branch pipe, and the two branch ports of the branch pipe are respectively connected to a tap water pipe and a natural water source.

[0009] Furthermore, the drug supply device also includes a liquid level switch assembly, which includes a low liquid level switch and a high liquid level switch vertically installed on the inner wall of the diluent tank; wherein the low liquid level switch is set at 20% of the height of the diluent tank, and the high liquid level switch is set at 80% of the height of the diluent tank.

[0010] Furthermore, the outlet pipe at the bottom of the diluent tank is connected to the suction end of the booster pump, and the discharge port of the booster pump is connected to the drug supply branch pipe.

[0011] Furthermore, it also includes an environmental monitoring module, in which sensors are fixedly installed at the boundary of the deodorization area.

[0012] Furthermore, the sensor is connected to a PLC controller via wireless communication, and the PLC controller is connected to a dosing pump to dynamically adjust the dosage of the drug to match the intensity of the ambient odor based on the sensor signal.

[0013] Furthermore, the deodorization device includes a fixed deodorizing cannon and a mobile deodorizing cannon vehicle; wherein, the base of the fixed deodorizing cannon is arranged in a ring array and fixed to the side of the deodorization area.

[0014] Furthermore, the mobile deodorizing cannon vehicle is equipped with a positioning device, which is wirelessly connected to the control platform in the wireless control module, enabling real-time tracking of the mobile deodorizing cannon vehicle's location to achieve emergency deodorization.

[0015] Furthermore, it also includes a monitoring module, which is equipped with at least two sets of video monitoring equipment. The video monitoring equipment is installed at key locations within the deodorization area to monitor the deodorization process and the operating status of the deodorization execution device in real time.

[0016] Furthermore, the stock solution tank and the diluent tank are arranged side by side.

[0017] Compared with the prior art, the beneficial effects of this application are: The industrial deodorization system replaces the decentralized manual dosing method with automated dilution and distribution via centralized dosing devices, significantly reducing the frequency of dosing and minimizing manual intervention. By dynamically adjusting the dilution ratio and device startup / shutdown based on environmental parameters, it overcomes the waste caused by traditional fixed-ratio dosing. Furthermore, by building a comprehensive sensing network using satellite positioning, video surveillance, and a cloud platform, maintenance personnel can monitor equipment status and operational paths in real time, completely resolving the lag and blind spots inherent in traditional manual inspections, thus achieving precise deodorization operations and highly efficient resource utilization. Attached Figure Description

[0018] Figure 1 A system structure diagram of the drug supply and deodorization system provided in this embodiment of the utility model; Figure 2 This is a control block diagram of the drug supply and deodorization system according to an embodiment of the present invention.

[0019] Figure label: 1-Concentrated solution tank, 2-Dosing metering pump, 3-Dilution tank, 4-Booster pump, 5-Inlet electric valve, 6-Deodorization actuator, 7-Control cabinet, 8-Dosing branch pipe, 9-Branch pipe, 10-Low level switch, 11-High level switch, 12-Water supply pipe, 13-Water storage tank. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of the present invention, not all embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] To more clearly illustrate the technical solutions in this invention, specific embodiments are described below.

[0024] Example Reference Figure 1-2 As shown, this embodiment provides a drug supply and deodorization system based on PLC wireless control, which achieves efficient and automated operation through integrated design; the drug supply and deodorization system includes a drug supply device, a deodorization execution device 2, a drug metering pump 3, an environmental monitoring module, a monitoring module, and a control cabinet 7.

[0025] The main body of the drug supply device consists of a stock solution tank 1 and a diluent tank 3 arranged in parallel, with a volume ratio of 1:5 between the stock solution tank 1 and the diluent tank 3. This compact structural design reduces the footprint of the device and facilitates centralized operation by maintenance personnel. The top of the stock solution tank 1 has an inlet for easy replenishment of the drug by operators. The outlet at the bottom of the stock solution tank is connected to the inlet of the metering pump 2 via a pipe. The metering pump 2 is fixed to a bracket between the side walls of the stock solution tank 1 and the diluent tank 3. The outlet of the metering pump 2 is connected to the upper inlet of the diluent tank 3 via a pipe. This connection design ensures leak-free drug delivery, and combined with the precise control of the metering pump 2, it structurally guarantees the accuracy of the dilution ratio. The top inlet of the diluent tank is connected to two water sources. The branch pipe 9 at the inlet end of the electric water inlet valve 5 is connected to the municipal tap water pipe 12 and the natural water source respectively. The natural water source is river water or rainwater stored in the landfill reservoir 13. The dual water source design realizes the flexible selection and automatic switching of water sources, while effectively preventing system shutdown caused by the interruption of a single water source.

[0026] A liquid level switch assembly is vertically installed on the inner wall of the diluent tank 3. The liquid level switch assembly includes a low liquid level switch 10 and a high liquid level switch 11. The low liquid level switch 10 is located at 20% of the height of the diluent tank 3, and the high liquid level switch 11 is located at 80% of the height of the diluent tank 3. The low liquid level switch 10 and the high liquid level switch 11 form a critical liquid level monitoring range. This positioning can automatically trigger water replenishment or water stop operation, and avoid false triggering caused by liquid level fluctuations. At the same time, sufficient buffer volume is reserved to cope with the need for sudden adjustment.

[0027] The outlet at the bottom of the diluent tank 3 is connected to the suction end of the booster pump 4 via a pipe. The discharge end of the booster pump 4 is connected to the deodorizing actuators 6 at various points within the deodorization area via a supply branch pipe 8. The powerful exhaust force of the booster pump 4 ensures that the diluted deodorant can be stably and efficiently delivered to each deodorizing actuator 6. The supply device is seamlessly connected to the agent inlet of multiple deodorizing actuators 6 via the supply branch pipe 8, realizing centralized supply and decentralized use of the deodorant.

[0028] A control cabinet 7 with a built-in PLC controller is installed on one side of the drug supply device. This controller is closely connected to the wireless control module, enabling not only remote monitoring of the system but also supporting automated control functions. By integrating an environmental monitoring module, sensors are fixedly installed at the boundary of the deodorization area. These sensors can sense the odor intensity in the environment in real time and transmit the data to the PLC controller via wireless communication. The PLC controller dynamically adjusts the operation of the drug metering pump 2 based on the received sensor signals, ensuring accurate matching of the deodorization dosage. This allows the dosage to match the odor concentration in real time, significantly improving upon manual adjustment and effectively addressing odor problems under different environmental conditions.

[0029] The deodorization actuator 6 includes a fixed deodorizing cannon and a mobile deodorizing cannon vehicle. The fixed deodorizing cannon is stably installed in a circular array at the edge of the deodorization area, forming an effective odor barrier. The mobile deodorizing cannon vehicle is equipped with an advanced positioning device that is wirelessly connected to the control platform in the wireless control module. This allows the operations department to track the location and working route of the mobile deodorizing cannon vehicle in real time, ensuring that it can quickly and accurately reach the designated area for spraying operations in emergency deodorization situations, while also improving the efficiency of handling sudden odor incidents at night.

[0030] To further enhance the intuitiveness and convenience of system management, a monitoring module has been added. This module is equipped with at least two sets of high-definition video monitoring devices, which are carefully installed at key locations within the deodorization area. These devices can monitor the deodorization process and the operating status of the deodorization actuator 6 24 hours a day, providing operators with comprehensive and accurate on-site information, which helps to identify problems in a timely manner and take corresponding solutions.

[0031] The working process of this embodiment is as follows: In a large landfill, after the chemical deodorization system starts operating, in the chemical supply area, the dilution tank 3 in the chemical supply device monitors the liquid level changes in real time through built-in low-level switch 10 and high-level switch 11. When the liquid level drops to the low level, the PLC controller triggers the opening of the water inlet electric valve 5, and water enters the dilution tank 3 through the branch pipe 9 connected to the tap water pipe 12 or the water storage tank 13. At the same time, the dosing metering pump 2 draws the chemical concentrate from the side-by-side raw liquid tank 1 and injects it into the dilution tank 3 according to the preset ratio to complete the automatic dilution. When the liquid level rises to the high level, the system automatically stops water intake and chemical dosing to prevent overflow. The diluted chemical is then transported to each deodorization actuator 6 through the dosing branch pipe 8 via the booster pump 4.

[0032] During this process, sensors in the environmental monitoring module fixed at the boundary of the deodorization area collect data such as odor concentration and wind direction in real time, and transmit them to the PLC controller via wireless communication. The PLC controller dynamically adjusts the operating parameters of the dosing metering pump 2 according to the odor concentration to ensure that the reagent dilution ratio is accurately matched with the environmental requirements. At the same time, combined with wind direction data, when the actual wind direction is within the set range and lasts for 5 minutes, the fixed deodorization cannon is automatically started. If the wind direction deviates within 5 minutes, the operation stops to avoid frequent start-stop damage to the equipment. The mobile deodorization cannon vehicle is wirelessly connected to the control platform via a satellite positioning device, allowing operators to track the cannon vehicle's location in real time and remotely start and stop it in emergency situations. Video monitoring equipment deployed at key points records the deodorization process and the operating status of the deodorization execution device 6 24 hours a day, and the images are synchronously transmitted to the remote platform for operators to view in real time. The entire system, through a remote monitoring network built by the PLC controller and wireless module, achieves dynamic linkage between reagent dispensing, equipment operation, and environmental parameters, which not only reduces the maintenance costs of manual inspection and dosing, but also significantly improves the accuracy and efficiency of deodorization response.

[0033] This application presents a PLC-based wireless control-based deodorization system that achieves automated dilution and distribution of deodorants through a highly integrated design, replacing manual dispensing operations. Combined with environmental monitoring sensors and a dynamic control system, the system enables automatic adjustment of deodorant ratios and equipment start-up and shutdown based on changes in odor concentration and wind direction. Simultaneously, it constructs a cloud-based monitoring system covering equipment status, operation paths, and on-site visuals, forming a closed-loop control from perception and decision-making to execution, comprehensively improving the accuracy and operational efficiency of deodorization operations.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 drug supply and deodorization system based on PLC wireless control, characterized in that, include: Drug supply device; deodorization device; The drug supply device includes a stock solution tank, a diluent tank, and a dosing pump; wherein the outlet at the bottom of the stock solution tank is connected to the inlet pipe of the dosing pump, the outlet of the dosing pump is connected to the upper inlet of the diluent tank, and the dosing pump is located on the side wall of the drug supply device to adjust the dilution ratio of the drug in the drug supply device; the drug supply device is connected to the drug inlets of multiple deodorizing actuators through a drug supply branch pipe. A control cabinet with a built-in PLC controller is installed on one side of the drug supply device. The PLC controller is connected to the wireless control module to realize remote monitoring and automated control of the system.

2. The PLC wireless control-based medicine supply and odor removal system according to claim 1, characterized by, The diluent tank is equipped with an inlet at the top, which is connected to an electric inlet valve via a water supply pipe. The other end of the electric inlet valve is connected to a branch pipe, and the two branch ports of the branch pipe are respectively connected to a tap water pipe and a natural water source.

3. The PLC wireless control-based medicine supply and odor removal system according to claim 1, characterized in that, The drug supply device also includes a liquid level switch assembly, which includes a low liquid level switch and a high liquid level switch vertically installed on the inner wall of the diluent tank; wherein the low liquid level switch is set at 20% of the height of the diluent tank, and the high liquid level switch is set at 80% of the height of the diluent tank.

4. The PLC wireless control-based medicine supply and odor removal system according to claim 1, characterized by, The outlet pipe at the bottom of the diluent tank is connected to the suction end of the booster pump, and the discharge port of the booster pump is connected to the drug supply branch pipe.

5. The PLC wireless control-based medicine supply and odor removal system according to claim 1, characterized in that, It also includes an environmental monitoring module, in which sensors are fixedly installed at the boundary of the deodorization area.

6. The PLC wireless control-based medicine supply and odor removal system according to claim 5, characterized by, The sensor is connected to a PLC controller via wireless communication. The PLC controller is connected to a dosing pump and dynamically adjusts the dosage to match the ambient odor intensity based on the sensor signal.

7. The PLC wireless control-based medicine supply and odor removal system according to claim 1, characterized by, The deodorization device includes a fixed deodorizing cannon and a mobile deodorizing cannon vehicle; wherein, the base of the fixed deodorizing cannon is arranged in a ring array and fixed to the side of the deodorization area.

8. The PLC wireless control-based medicine supply and odor removal system according to claim 7, characterized by, The mobile deodorizing cannon is equipped with a positioning device, which is wirelessly connected to the control platform in the wireless control module, enabling it to track the location of the mobile deodorizing cannon in real time and achieve emergency deodorization.

9. The PLC wireless control-based medicine supply and odor removal system according to claim 1, characterized in that, It also includes a monitoring module, which is equipped with at least two sets of video monitoring equipment. The video monitoring equipment is installed at key locations within the deodorization area to monitor the deodorization process and the operating status of the deodorization execution device in real time.

10. The drug supply and deodorization system based on PLC wireless control according to any one of claims 1-9, characterized in that, The stock solution tank and the diluent tank are arranged side by side.