An ultrasonic atomization deodorization system with independent liquid supply from dual medicine tanks at the tail end of a farm.

Abstract

This invention discloses a dual-tank independent liquid supply ultrasonic atomization deodorization system for livestock farms, belonging to the field of livestock waste gas deodorization technology. The system includes dual independent medicine storage tanks, a dual-channel peristaltic pump assembly, an ultrasonic atomizing host, an exhaust duct mist distribution assembly, and an intelligent electrical control unit. The exhaust duct and negative pressure fan are separately and correspondingly arranged at the tail end. The fan exhausts odorous gas externally, and the exhaust duct sprays ultra-fine droplets for external mixing and deodorization. The dual medicine storage tanks separately store plant essential oil liquid and organic acid liquid, which are instantaneously mixed before atomization. The dual peristaltic pumps independently adjust the liquid supply speed, and the electrical control unit links the fan start and stop and has a liquid level alarm function. This invention avoids the disease-causing problem of indoor spray humidification, prevents premixed medicine failure, and relies on a triple mechanism of antibacterial, adsorption, and neutralization for deodorization. It features low medicine consumption, automated operation and maintenance, stable operation, and is suitable for odor control in various large-scale livestock and poultry farms.

Description

Technical Field

[0001] This invention relates to the field of environmental protection treatment of waste gas from livestock and poultry farming and odor atomization purification technology. Specifically, it relates to an ultrasonic atomization deodorization system with independent liquid supply from dual medicine tanks at the tail end of a farm, which is particularly suitable for the special treatment of malodorous gases discharged from negative pressure fans in large-scale pig farms. Background Technology

[0002] Large-scale livestock and poultry farms, especially large-scale pig farms, continuously produce large amounts of malodorous and harmful gases such as ammonia, hydrogen sulfide, and volatile organic acids from the accumulation and fermentation of pig excrement and manure during the breeding process. These gases not only deteriorate the air environment inside the farm, affecting pig growth and development and reducing breeding productivity, but also continue to pollute the surrounding atmosphere after being centrally discharged by negative pressure fans within the farm. This can easily lead to complaints from nearby residents and penalties for exceeding environmental standards, making it a key and challenging issue in the environmental governance of livestock and poultry farming.

[0003] Currently, most large-scale farms in China use atomized spray deodorization to treat farm odors. However, the existing deodorization equipment has outdated overall technical solutions and has many unavoidable structural and functional defects. It cannot balance deodorization effect, farm safety and operating economy, and has extremely poor industry adaptability.

[0004] Traditional conventional atomizing deodorization equipment mostly adopts a full-area spraying operation mode inside the pigsty. To ensure the deodorization effect, it is necessary to spray the liquid solution frequently and over a wide area. This not only results in huge consumption of liquid solution and high operating costs, but also continuously increases the humidity of the air and the dampness of the ground inside the pigsty. A long-term damp environment is very conducive to the growth of bacteria and mold, inducing skin diseases such as eczema and dermatitis in pigs, as well as diseases such as bronchitis and respiratory infections, significantly increasing the mortality rate and medication costs, and seriously affecting the efficiency of breeding production. At the same time, the mainstream deodorization equipment on the market is an integrated structure with a single water tank and a single peristaltic pump, which can only realize the storage and delivery of a single liquid solution. Workers need to manually mix different functional deodorizing agents such as plant essential oils and organic acids in advance and store them in the water tank for later use. Because plant essential oils are terpenoid organic compounds, long-term contact with acidic organic acid components will cause rapid oxidation, stratification, and failure reactions, resulting in a very short shelf life of the mixed solution and a significant reduction in deodorizing activity. The solution needs to be remixed every day, which is not only cumbersome to maintain, but also leads to unstable deodorizing effects.

[0005] In addition, existing deodorization equipment relies on a single deodorization mechanism, mostly depending on a single chemical neutralization reaction or the adsorption of plant essential oils to remove odors. This fails to achieve a synergistic effect of antibacterial control and rapid deodorization, resulting in slow deodorization, low removal rates for stubborn odors, and poor sustained deodorization. Regarding equipment installation and layout, traditional equipment lacks a dedicated treatment structure at the tail end of the negative pressure fan, failing to specifically treat the high-concentration odors emitted at high speeds. The odors directly diffuse into the surrounding environment, and the lack of end-point treatment means that deodorization only addresses the symptoms, not the root cause. Furthermore, traditional spray equipment has poor atomization performance, producing large, unevenly sized droplets. Under the high-speed airflow of the negative pressure fan, these large droplets easily settle quickly, failing to fully contact and mix with the flowing odorous gases. This incomplete gas purification further reduces overall deodorization efficiency, leads to significant waste of chemicals, and results in high long-term continuous operation and maintenance costs and environmental governance costs, making it difficult to meet the current needs of large-scale livestock and poultry farms for routine, efficient, and low-cost deodorization and environmental governance.

[0006] In summary, developing a deodorization system that can achieve dual-agent isolated storage, instantaneous mixing, dedicated deodorization at the fan end, ultra-fine atomization, and intelligent linkage operation to solve industry pain points such as disease caused by indoor spraying, ineffective premixing of agents, incomplete deodorization, and high operation and maintenance costs has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] To address the shortcomings of existing traditional atomizing deodorization equipment, such as the ease with which indoor spraying can cause livestock and poultry diseases, the tendency for premixed agents in single-tank structures to oxidize and become ineffective, the simplistic deodorization mechanism, the lack of a treatment structure at the end of the fan, insufficient droplet reaction, high energy consumption of agents, and high manual maintenance costs, this invention provides a dual-tank independent liquid supply ultrasonic atomizing deodorization system at the tail end of the farm. The system aims to achieve the following: 1. Eliminating indoor spraying operations in pigsties, thus avoiding livestock and poultry diseases induced by dampness; 2. Isolating and storing two agents throughout the process, with instantaneous mixing before atomization to ensure stable agent activity; 3. Directional deodorization at the fan tail end, achieving end-of-pipe treatment of waste gas; 4. Improving gas-liquid contact efficiency through ultra-fine ultrasonic atomization, combined with a dual deodorization mechanism to enhance odor removal rate; 5. Independently proportioning drug delivery via dual pumps and intelligent fan operation, reducing the costs of agents, labor, energy consumption, and maintenance, and making it suitable for long-term, routine deodorization operations in large-scale farms.

[0008] To achieve the above objectives, the present invention employs the following technical means:

[0009] An ultrasonic atomization deodorization system with independent liquid supply from dual medicine tanks at the tail end of a farm includes a dual independent medicine tank assembly, a dual-channel peristaltic pump assembly, an ultrasonic atomizing host, an exhaust duct mist distribution assembly, and an intelligent electronic control unit.

[0010] The dual independent drug storage tank assembly includes a first drug storage tank and a second drug storage tank. The first drug storage tank and the second drug storage tank are sealed and isolated without any connecting structure. The two tanks have the same structural dimensions. The first drug storage tank has a sealed top cover, a visual liquid level observation window embedded in the side wall, and an independent liquid outlet integrated at the bottom. The two tanks are completely separated and used to store different drugs separately.

[0011] The dual-channel peristaltic pump assembly includes a first peristaltic pump and a second peristaltic pump. The inlet pipe of the first peristaltic pump is sealed and connected to the independent outlet of the first medicine storage tank, and the inlet pipe of the second peristaltic pump is sealed and connected to the independent outlet of the second medicine storage tank. The two peristaltic pumps can be independently controlled to start, stop and speed.

[0012] The inlet of the ultrasonic atomizing host is connected to the outlet of the first peristaltic pump and the second peristaltic pump through independent pipelines, and the two agents converge at the inlet of the ultrasonic atomizing host.

[0013] The exhaust duct misting assembly includes an exhaust duct that is separately arranged corresponding to the tail end of the negative pressure fan in the farm. The exhaust duct and the tail end of the negative pressure fan are arranged independently. The exhaust duct wall is evenly opened with multiple sets of through-type mist outlet holes along the axial direction. The mist outlet of the ultrasonic atomizing host is connected to the inside of the exhaust duct through a transmission pipe.

[0014] The intelligent electronic control unit is electrically connected to the first peristaltic pump, the second peristaltic pump, and the ultrasonic atomizing host, respectively. The intelligent electronic control unit integrates a dual-pump independent speed regulation module, a timed intermittent control module, and a low liquid level audible and visual alarm module.

[0015] Preferably, the first storage box is used to store plant essential oil functional liquid, and the second storage box is used to store organic acid neutralization liquid.

[0016] Preferably, both the No. 1 and No. 2 medicine storage tanks are equipped with embedded contact-type liquid level sensors at the bottom of their inner cavities, and the signal output terminals of the liquid level sensors are electrically connected to the low liquid level audible and visual alarm module of the intelligent electronic control unit.

[0017] Preferably, the external delivery pipelines of the first peristaltic pump and the second peristaltic pump are made of polymer tubing that is resistant to weak acid corrosion and terpene plant essential oil corrosion, and each set of independent delivery pipelines is equipped with a one-way anti-backflow valve structure at the end.

[0018] Preferably, multiple sets of mist outlets are distributed in a ring array at equal intervals on the wall of the exhaust duct, and both the exhaust duct and the transmission duct are corrosion-resistant rigid PVC pipes.

[0019] Preferably, the intelligent electronic control unit has a reserved linkage wiring port adapted to the negative pressure fan of the breeding farm, which is used to collect the start and stop signals of the negative pressure fan and control the start and stop of the system.

[0020] The present invention has the following beneficial effects:

[0021] 1. Innovative installation layout to avoid the risk of livestock diseases from the source: This invention abandons the traditional whole-area spray mode in the pigsty. The whole machine is arranged on the outside of the tail end of the negative pressure fan, and only purifies the exhaust gas. It will not increase the humidity of the air inside the pigsty or the dampness of the ground. It completely eliminates eczema, dermatitis and respiratory diseases in pigs caused by damp environment, reduces the cost of breeding medicine and the mortality rate of livestock and poultry, and ensures the efficiency of breeding production.

[0022] 2. Dual-tank independent liquid storage significantly improves drug stability: The dual-tank completely isolated and sealed structure allows for separate storage and independent transportation of plant essential oil liquid and organic acid liquid throughout the entire process. They are only mixed online momentarily before atomization, which completely solves the industry pain points of traditional premixed drugs such as stratification, oxidation, and rapid failure. There is no need to remix the drug every day, which greatly extends the effective use cycle of the drug and simplifies the operation and maintenance process.

[0023] 3. Triple deodorization mechanism superimposed for excellent exhaust gas purification effect: It combines the triple effects of plant essential oil microbial antibacterial control, physical adsorption of malodor molecules, and chemical neutralization of organic acid and alkaline odors. Unlike single deodorization mechanism equipment on the market, it improves the deodorization speed by more than 40%, and the removal rate of stubborn malodorous gases such as ammonia and hydrogen sulfide can be stably maintained at more than 70%, with good long-lasting deodorization effect.

[0024] 4. Circular misting in the pipeline + ultra-fine atomization for thorough gas-liquid reaction: Relying on the circular array of mist outlets in the exhaust duct at the tail end of the fan, misting is distributed in all directions. Combined with ultrasonic waves, 1-5μm ultra-fine suspended droplets are generated. This is suitable for high-speed airflow conditions of the fan. The droplets are not easy to settle and have a long suspension time. They mix and contact with the flowing odorous airflow throughout the entire area, solving the problems of incomplete reaction of large droplets and waste of reagents in traditional single-point spraying.

[0025] 5. Dual pumps with independent mixing and intelligent linkage for high energy efficiency and cost reduction: The dual peristaltic pumps can be independently steplessly speed-regulated, allowing for flexible mixing of the two types of agents based on real-time odor concentration for precise drug administration. Compared to traditional single-pump premixing equipment, the agent consumption is reduced by more than 30%. Combined with fan linkage start / stop and timed intermittent operation modes, the entire process is fully automated and unattended, significantly reducing manual operation and maintenance costs and making it suitable for long-term continuous operation of large-scale farms with tens of thousands of animals.

[0026] 6. Stable operation, low failure rate, and strong adaptability: The pipeline is made of chemical corrosion resistant material and equipped with a one-way anti-backflow structure to avoid cross-contamination of chemicals and pipeline blockage; the ultrasonic ultra-fine atomization is not prone to scale buildup and clogging of the transducer, and with the low liquid level automatic warning function, the whole machine operates stably and can be adapted to outdoor breeding conditions with high and low temperatures and high dust in summer and winter, and can be adapted to the negative pressure exhaust system of various large-scale pig houses for renovation and connection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the dual independent medicine storage tank assembly of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the dual-channel peristaltic pump assembly of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the exhaust duct mist distribution assembly of the present invention;

[0031] Figure label:

[0032] 1-Dual independent drug storage tank assembly, 11-Drug storage tank No. 1, 12-Drug storage tank No. 2, 13-Sealed top cover, 14-Liquid level observation window, 15-Independent liquid outlet; 2-Dual channel peristaltic pump assembly, 21-First peristaltic pump, 22-Second peristaltic pump; 3-Ultrasonic atomizing host; 4-Exhaust duct mist distribution assembly, 41-Exhaust duct, 42-Mist outlet, 43-Transmission duct; 5-Intelligent electronic control unit. Detailed Implementation

[0033] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments 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.

[0034] like Figure 1-4 As shown, the present invention provides a dual independent medicine tank supply ultrasonic atomization deodorization system for the tail end of a farm, including a dual independent medicine tank assembly 1, a dual-channel peristaltic pump assembly 2, an ultrasonic atomizing host 3, an exhaust duct mist distribution assembly 4, and an intelligent electronic control unit 5.

[0035] The dual independent drug storage tank assembly 1 includes a first drug storage tank 11 and a second drug storage tank 12. The first drug storage tank 11 and the second drug storage tank 12 are sealed and isolated without any connecting structure. The two have the same structural dimensions. The top of the first drug storage tank 11 is sealed with a sealing cover 13, and the side wall is inlaid with a visual liquid level observation window 14. The bottom is set with an independent liquid outlet 15. The two tanks are completely separated and store deodorizing agents with different functions respectively, preventing the agents from being mixed and reacting and becoming ineffective over a long period of time.

[0036] The dual-channel peristaltic pump assembly 2 includes a first peristaltic pump 21 and a second peristaltic pump 22. The inlet pipe of the first peristaltic pump 21 is sealed and connected to the independent outlet 15 of the first drug storage tank 11, and the inlet pipe of the second peristaltic pump 22 is sealed and connected to the independent outlet 15 of the second drug storage tank 12. The two peristaltic pumps can start and stop independently and supply liquid with stepless speed regulation. The supply flow rate of the two types of agents can be flexibly adjusted according to the odor concentration to achieve precise and controllable ratio.

[0037] The inlet of the ultrasonic atomizing host 3 is connected to the outlet of the first peristaltic pump 21 and the second peristaltic pump 22 through independent pipelines. The two agents are mixed only momentarily at the inlet of the ultrasonic atomizing host 3. After mixing, they immediately enter the atomizing chamber for atomization, which greatly shortens the mixing and standing time and preserves the deodorizing activity of the agent.

[0038] The exhaust duct misting component 4 includes an exhaust duct 41 that is separately installed at the tail end of the negative pressure fan in the farm. The exhaust duct 41 is not directly connected to the tail end of the negative pressure fan. The two are arranged independently. The negative pressure fan discharges malodorous gas. Multiple sets of through-type mist outlet holes 42 are evenly opened along the axial direction on the wall of the exhaust duct 41. The mist outlet of the ultrasonic atomizing host 3 is connected to the inside of the exhaust duct 41 through the transmission pipe 43. Ultrafine mist droplets are sprayed out directionally from the exhaust duct 41 and mix and react with the malodorous exhaust gas discharged at high speed by the fan in the external space outside the fan.

[0039] The intelligent electronic control unit 5 is electrically connected to the first peristaltic pump 21, the second peristaltic pump 22, and the ultrasonic atomizing host 3. The intelligent electronic control unit 5 integrates a dual-pump independent speed regulation module, a timed intermittent control module, and a low liquid level audible and visual alarm module to realize the full-process automated management and control of the equipment.

[0040] The No. 1 storage tank 11 is dedicated to storing plant essential oil functional liquid, which uses plant essential oil to destroy the cell membrane of odor-producing microorganisms in feces, inhibiting odor generation at the source, while physically encapsulating and adsorbing gaseous odor molecules; the No. 2 storage tank 12 is dedicated to storing organic acid neutralizing liquid, which uses organic acid to quickly neutralize alkaline odor gases such as ammonia, converting free odor into stable and harmless ammonium salts. The two types of agents are stored in a completely isolated and sealed manner, and are instantly mixed at the liquid inlet of the ultrasonic atomizing host 3 before being atomized, preventing oxidation and stratification failure.

[0041] Both the No. 1 medicine storage tank 11 and the No. 2 medicine storage tank 12 are equipped with embedded contact liquid level sensors at the bottom of their inner cavities. The signal output terminals of the liquid level sensors are electrically connected to the low liquid level audible and visual alarm module of the intelligent electronic control unit 5. When the amount of medicine in either tank is lower than the threshold, an audible and visual alarm will be triggered to remind staff to replenish the liquid in time.

[0042] The external delivery pipelines of the first peristaltic pump 21 and the second peristaltic pump 22 are made of polymer tubing that is resistant to weak acid corrosion and terpene plant essential oil corrosion, making them compatible with the physicochemical properties of the two types of agents. In addition, each set of independent delivery pipelines is equipped with a one-way anti-backflow valve structure at the end to prevent backflow of agents, cross-contamination, and pipeline corrosion and blockage.

[0043] Multiple sets of mist outlets 42 are evenly spaced and arranged in a ring array on the wall of the exhaust duct 41, ensuring uniform mist distribution without dead corners. Both the exhaust duct 41 and the transmission duct 43 are made of corrosion-resistant rigid PVC pipes, which are resistant to chemical corrosion, lightweight, and easy to install and connect on site.

[0044] The intelligent electronic control unit 5 has a reserved connection port for the linkage of the negative pressure fan in the farm. The intelligent electronic control unit 5 can collect the start and stop signals of the negative pressure fan and the control system follows the start and stop of the negative pressure fan. It can operate when there is air, stop when there is no air, or stop after running for a period of time, thus preventing the equipment from running idle and wasting medicine and electricity.

[0045] Working principle

[0046] This system addresses the problem of odorous exhaust gas from negative pressure fans in large-scale livestock and poultry farms. It employs a collaborative system consisting of two independent drug storage tanks (1), a dual-channel peristaltic pump assembly (2), an ultrasonic atomizing unit (3), an exhaust duct misting assembly (4), and an intelligent electronic control unit (5). The core logic is: independent storage of dual agents, precise liquid supply via dual peristaltic pumps, automatic tap water replenishment, water-dilution mixing, ultrasonic ultra-fine atomization, and coordinated odor removal via ductwork at the fan's tail end. Combining physical adsorption, chemical neutralization, and microbial source inhibition mechanisms, the exhaust duct (41) is separately positioned at the tail end of the negative pressure fan (mist outlets (42) are drilled according to the fan's location). The fan discharges odorous gas, while the exhaust duct (41) sprays ultra-fine deodorizing droplets. The two work together to purify the exhaust gas in the external space at the fan's tail end, fundamentally solving the technical pain points of traditional deodorizing agents such as ineffectiveness, dampness inside the shed, and incomplete deodorization. The specific principle is divided into five modules:

[0047] 1. Principle of Independent Isolation Drug Storage

[0048] The system uses a dual independent storage tank assembly 1 to achieve complete isolation and storage of two functional agents. Storage tank 11 stores plant essential oil functional liquid, while storage tank 12 stores organic acid neutralization liquid. The two tanks are not connected and have a fully sealed structure, which completely avoids oxidation, stratification, and inactivation caused by long-term contact between terpene essential oils and acidic agents, thus preserving the activity of the agents to the greatest extent and ensuring long-term stable deodorization effect.

[0049] 2. Precise independent liquid supply principle

[0050] The first peristaltic pump 21 and the second peristaltic pump 22 of the dual-channel peristaltic pump assembly 2 are independently connected one-to-one to the first medicine storage tank 11 and the second medicine storage tank 12, respectively. They are independently controlled by the intelligent electronic control unit 5 and can be started and stopped independently with stepless speed adjustment. Based on the farm's exhaust air volume, odor concentration, number of livestock, and the set dilution ratio, staff accurately and quantitatively extract the two types of concentrate into the water tank of the ultrasonic atomizing host 3. The pipeline is equipped with a corrosion-resistant, one-way anti-backflow structure to prevent medicine backflow contamination and pipeline corrosion blockage, ensuring a stable and accurate liquid supply.

[0051] 3. The principle of water-drug mixing and ultrasonic atomization

[0052] The ultrasonic atomizing unit 3 is connected to a tap water pipe. Water supply automatically stops once the water level in the tank reaches the set level, achieving automatic water replenishment and level control. The first peristaltic pump 21 and the second peristaltic pump 22 quantitatively extract the two drug concentrates into the water tank according to the set dilution ratio, ensuring thorough mixing with water to form a homogeneous working solution. Subsequently, the atomizing plate (high-frequency ultrasonic transducer) built into the ultrasonic atomizing unit 3 vibrates at high frequency, breaking the mixture into ultrafine droplets of 1–5 μm. Compared to the large droplets of traditional high-pressure spraying, the ultrafine droplets have a 5-8 times larger specific surface area, allowing them to remain suspended for extended periods in high-speed exhaust airflow, providing the necessary conditions for complete gas-liquid reaction.

[0053] 4. Tail-end space synergistic deodorization reaction principle

[0054] Ultrafine deodorizing droplets are transported to the tail end of the negative pressure fan via exhaust duct 41. Exhaust duct 41 has mist outlets 42 arranged according to the fan's position (each mist outlet corresponds to a fan in a one-to-one sequence), and the droplets are discharged directionally from each mist outlet 42. The negative pressure fan independently discharges ammonia, hydrogen sulfide, and other malodorous waste gases at high speed, allowing the odorous gases to fully contact and react with the ultrafine droplets in the external space at the fan's tail end. The plant essential oil functional liquid in the first storage tank 11 can destroy the cell membranes of odor-producing microorganisms, inhibiting the secondary generation of fecal odor at the source, while simultaneously physically encapsulating and adsorbing gaseous malodor molecules. The organic acid neutralizing liquid in the second storage tank 12 can quickly neutralize alkaline ammonia, converting free odor into stable and harmless ammonium salts. The synergistic effect of the dual mechanisms of antibacterial control and chemical neutralization achieves rapid and long-lasting deodorization.

[0055] 5. Intelligent linkage control principle

[0056] The intelligent electronic control unit 5 is connected in conjunction with the negative pressure fan in the farm to enable the start and stop of the equipment and ventilation system: operation when there is airflow, shutdown when there is no airflow, or delayed shutdown. Simultaneously, the intelligent electronic control unit 5 automatically manages tap water replenishment, peristaltic pump liquid supply, and ultrasonic atomization start and stop, and is equipped with timed intermittent operation, independent control of dual pumps, and low liquid level audible and visual alarm functions. The entire process is automated, avoiding ineffective operations and reducing the consumption of chemicals and electricity.

[0057] How to use

[0058] This equipment is simple to operate and highly automated, requiring only initial reagent filling and parameter adjustment. Afterward, it can operate unattended and routinely. The specific usage process consists of five steps: installation and inspection, reagent filling, parameter setting, startup, and daily maintenance.

[0059] S1. Equipment installation and pre-start inspection

[0060] The entire device is fixedly installed on the outer side of the negative pressure fan tail end in the farm. The exhaust duct 41 is laid along the tail end of the fan, and the mist outlets 42 are drilled according to the fan position (the ducts are not rigidly connected to the fan and are arranged independently). Confirm that the dual independent medicine storage tank assembly 1, dual-channel peristaltic pump assembly 2, ultrasonic atomizing host 3, and exhaust duct misting assembly 4 are tightly connected and without looseness or leakage; check that the tap water supply pipeline and the host water tank level control device are normal, and that the mist outlets 42 are not blocked by feces, dirt, or dust; confirm that the intelligent electrical control unit 5 and the negative pressure fan linkage wiring are normal, and that the equipment grounding protection is compliant and safe.

[0061] S2. Drug formulation and dispensing / filling

[0062] Prepare two stock solutions, A and B, according to industry deodorization standards: Solution A is a plant essential oil functional liquid (stored in storage tank 1, 11), and Solution B is an organic acid neutralization solution (stored in storage tank 2, 12). Pour the prepared Solution A into storage tank 1, 11, and Solution B into storage tank 2, 12, at a uniform rate. Pre-mixing of the two solutions is strictly prohibited. After filling, tighten the sealing caps on both sides to ensure the tanks are completely sealed. Confirm the solution level is within the standard operating range through the liquid level observation window.

[0063] S3, System Parameter Adjustment and Setting

[0064] Connect the equipment power supply and turn on the control panel of the intelligent electronic control unit 5. Independently adjust the conveying speed of the first peristaltic pump 21 and the second peristaltic pump 22 respectively. Based on the scale of the farm, the day and night exhaust wind speed, the real-time odor concentration and the required dilution ratio, fine-tune the flow rate of the two pumps to match the optimal agent ratio parameters; set the equipment intermittent working period, single working duration and interval duration to adapt to the odor concentration fluctuations caused by the day and night temperature difference and the fermentation rhythm of manure in the farm; turn on the fan linkage mode and lock the start and stop functions.

[0065] S4, Automated Startup and Operation

[0066] After parameter settings are completed, the system automatically starts operating. When the negative pressure fan in the farm starts to exhaust air, the equipment automatically starts synchronously: the ultrasonic atomizing host 3 automatically replenishes water to the set liquid level and stops; the first peristaltic pump 21 and the second peristaltic pump 22 independently and quantitatively extract the drug concentrate into the host water tank according to the set dilution ratio and mix it with water; the ultrasonic atomizing host 3 starts atomization; ultrafine droplets are discharged directionally from each mist outlet 42 through the exhaust pipe 41, mixing and reacting with the odorous gas exhausted by the fan in the external space at the tail end to complete deodorization and purification. After the negative pressure fan stops, the equipment automatically stops or delays stopping to prevent idling waste. The equipment operates unattended throughout the entire process, automatically cycling and intermittently.

[0067] S5, Routine Maintenance and Fluid Replenishment

[0068] Daily monitoring of the remaining medication level can be achieved via the external observation window of the storage tank. When the medication level in either storage tank 11 or storage tank 12 falls below the set threshold, the equipment automatically triggers a low-level audible and visual alarm on the intelligent electronic control unit 5, allowing staff to promptly stop the machine and replenish the medication. Regularly check the mist outlet 42, exhaust duct 41, and the built-in atomizing plate of the ultrasonic atomizing host 3 weekly, cleaning any minor medication buildup to ensure smooth atomization and mist output. Before long-term shutdown of the farm, drain any residual medication from the pipes and the host's water tank to prevent corrosion of the pipes and atomizing plate, thus extending the overall lifespan of the machine.

[0069] Core operational advantages

[0070] 1. No frequent manual medication preparation or on-duty maintenance is required throughout the entire process, significantly reducing labor costs;

[0071] 2. The tail end pipe deodorizes the outside, preventing moisture from entering the breeding shed and avoiding breeding diseases;

[0072] 3. The two agents are mixed online instantly, ensuring stable efficacy and long-lasting deodorizing effect;

[0073] 4. It can be mixed on demand and operated intermittently, resulting in low reagent loss and excellent long-term economic efficiency.

[0074] Example 1: Adaptation Example for Small and Medium-Sized Pig Farms (2000 Fattening Pigs)

[0075] 1. Adaptable working conditions

[0076] Suitable for small-scale standardized fattening pig farms, each pig house is equipped with 6 1380-type negative pressure axial flow exhaust fans (power 1.1kW, fan size 1380•1380mm). The daily odor concentration in the farm area is low, requiring only routine basic deodorization. There are no densely populated residential areas nearby, and environmental management standards are standard.

[0077] 2. Hardware selection parameters

[0078] (1) Dual independent medicine storage box assembly 1: medicine storage box 11 and medicine storage box 12 each have an effective volume of 5L, a box wall thickness of 3mm, a side wall liquid level observation window 14 with a low liquid level alarm threshold of 1L, and a capacitive liquid level sensor at the bottom; medicine storage box 11 contains 4% plant essential oil functional liquid, and medicine storage box 12 contains 6% organic acid neutralization liquid. The two boxes are completely sealed and isolated.

[0079] (2) Dual-channel peristaltic pump assembly 2: The first peristaltic pump 21 and the second peristaltic pump 22 are miniature corrosion-resistant peristaltic pumps with a flow rate adjustment range of 0.05-1L / min. All pipelines are made of PTFE corrosion-resistant pipes, and each pipeline is equipped with a plastic one-way anti-backflow valve to prevent backflow of the agent.

[0080] (3) Ultrasonic atomizing host 3: Built-in low-frequency atomizing transducer, atomizing frequency 1.5MHz, atomized particle size stable 3-5μm, built-in mist delivery fan, whose speed is infinitely regulated by intelligent electronic control unit to ensure that the deodorant particles after atomization have sufficient initial velocity and are effectively delivered to the exhaust pipe 20 meters away, with a droplet suspension time ≥8s.

[0081] (4) Exhaust duct misting component 4: The exhaust duct 41 is made of 160mm anti-corrosion PVC pipe, which is laid parallel to the outside of the negative pressure fan outlet 20cm away and has no connection contact. Every 10cm, the pipe wall is opened with a 1.5mm diameter annular mist outlet 42, and the mist outlet direction is directly opposite to the exhaust airflow direction of the fan; the transmission pipe 43 has a diameter of 20mm and connects the atomizing host and the exhaust duct 41.

[0082] (5) Intelligent electrical control unit 5: Connects to the fan linkage port, supports independent control of a single unit, and has functions such as timed intermittent operation, independent speed regulation of dual pumps, stepless speed regulation of misting fan, and audible and visual low liquid level alarm.

[0083] 3. On-site operating parameters

[0084] Based on the number of 6 operating fans, the intelligent electronic control unit 5 automatically matches and adjusts the speed of the mist-dispensing fans to achieve precise mist supply. Dual-pump steady-state ratio: first peristaltic pump 21 supplies liquid at a flow rate of 0.2L / min, and second peristaltic pump 22 supplies liquid at a flow rate of 0.3L / min; Linked operation mode: spraying for 12 seconds after fan start, followed by an intermittent 10-second pause; uniform parameters for day and night operation, eliminating the need for incremental adjustment at night.

[0085] 4. Implementation Results

[0086] The ammonia removal rate outside the farm is 68%, and the hydrogen sulfide removal rate is 70%, meeting the local livestock and poultry farm's conventional emission standards. The monthly drug consumption is 28% lower than that of traditional indoor spraying equipment, and the equipment has a low failure rate, making it suitable for low-cost operation and maintenance in small pig farms.

[0087] Example 2: Adaptation Example for Standard Large-Scale Pig Farms (10,000 Fattening Pigs)

[0088] 1. Adaptable working conditions

[0089] Suitable for medium-sized fattening pig farms, each pig house is equipped with 8 1380-type negative pressure axial flow exhaust fans (power 1.1kW, fan size 1380•1380mm). The farm has a large amount of manure fermentation, a large difference in odor concentration between day and night, and is close to residential areas with strict environmental control, requiring stable odor control around the clock.

[0090] 2. Hardware selection parameters

[0091] (1) Dual independent medicine storage tank assembly 1: No. 1 medicine storage tank 11 and No. 2 medicine storage tank 12 have an effective volume of 5L each, a tank wall thickness of 3.5mm, and a low liquid level alarm threshold of 1.2L for the side wall liquid level observation window 14; No. 1 medicine storage tank 11 contains 5% plant essential oil deodorizing liquid, and No. 2 medicine storage tank 12 contains 8% organic acid neutralizing liquid.

[0092] (2) Dual-channel peristaltic pump assembly 2: Selected speed adjustable electromagnetic peristaltic pump, single pump flow rate adjustment range 0.1-2L / min, corrosion resistance level suitable for all-weather delivery of terpenoid essential oils and weak acid media, anti-backflow valve pressure resistance level 0.4MPa.

[0093] (3) Ultrasonic atomizing host 3: Built-in high-frequency atomizing transducer, atomizing frequency 1.7MHz, fixed atomizing particle size 2-4μm, built-in high-power mist delivery fan, whose speed is infinitely adjustable by intelligent electronic control unit according to the number of fans turned on and day and night mode, ensuring that the deodorant particles after atomization have sufficient initial velocity and are effectively delivered to the exhaust pipe 20 meters away, with a droplet suspension time ≥12s.

[0094] (4) Exhaust duct misting component 4: The exhaust duct 41 is made of 160mm standard PVC anti-corrosion pipe, which is laid out separately 25cm outside the negative pressure fan outlet, without any rigid connection; the pipe wall is opened with 2mm diameter annular mist outlet holes 42 every 12cm, and the mist is directional throughout the area.

[0095] (5) Intelligent electronic control unit 5: Supports multi-fan linkage and automatic switching of day and night parameters. It can be connected to an external odor detector to adaptively adjust the flow rate of the dual pumps and the speed of the mist blowing fan. It also integrates a fault self-diagnosis module.

[0096] 3. On-site operating parameters

[0097] The intelligent electronic control unit 5 monitors the number of 8 operating fans in real time and dynamically adjusts the speed of the misting fan to ensure precise matching between the mist supply and exhaust volume. During the daytime low-odor period: the first peristaltic pump 21 has a flow rate of 0.3L / min, the second peristaltic pump 22 has a flow rate of 0.5L / min, spraying for 15 seconds with an 8-second interval; during the nighttime high-odor period of manure fermentation: parameters are automatically switched, spraying for 22 seconds with a 6-second interval to increase the amount of agent sprayed.

[0098] 4. Implementation Results

[0099] The ammonia removal rate outside the farm is 72%, and the hydrogen sulfide removal rate is 75%, fully meeting the atmospheric emission limits around residential areas; the monthly drug usage is reduced by 32%, eliminating the need for daily manual drug preparation; the incidence of skin and respiratory diseases in pigsties has decreased by 68%, and the overall operation and maintenance costs have been significantly reduced.

[0100] Example 3: High-density integrated nursery and fattening pig farm (18,000 mixed pigs)

[0101] 1. Adaptable working conditions

[0102] Suitable for large-scale integrated breeding parks, with nursery and fattening sheds laid out in a continuous layout. Each pig house is equipped with 12 1380-type negative pressure axial flow exhaust fans (power 1.1kW, fan size 1380•1380mm). The exhaust wind speed is high, the odor concentration is high, and the persistent hydrogen sulfide odor is prominent. The park is adjacent to the urban ecological control zone, and the odor control indicators are strictly controlled.

[0103] 2. Hardware selection parameters

[0104] (1) Dual independent medicine storage box assembly 1: No. 1 medicine storage box 11 and No. 2 medicine storage box 12 have an effective volume of 5L each, thickened anti-corrosion box wall thickness of 4mm, and liquid level alarm threshold of 1.5L; No. 1 medicine storage box 11 contains 6% high-activity plant essential oil functional liquid to enhance the antibacterial ability of odor-producing bacteria, and No. 2 medicine storage box 12 contains 10% compound organic acid neutralizing liquid to enhance the alkaline odor neutralization ability.

[0105] (2) Dual-channel peristaltic pump assembly 2: High-power variable frequency peristaltic pump with a flow rate adjustment range of 0.2-3.5L / min. The pipeline is made of thickened corrosion-resistant fluoroplastic pipe with a two-way anti-backflow structure, which is suitable for high-power fans to supply liquid at high frequency for a long time, and prevents pipeline blockage and drug backflow.

[0106] (3) Ultrasonic atomizing host 3: Dual-vibrator enhanced atomizing host, atomizing frequency 2.0MHz, atomizing particle size 1-3μm, ultra-fine droplets have strong resistance to high-speed airflow scouring, built-in high-pressure mist delivery fan, its speed is adaptively adjusted by the intelligent electronic control unit according to the number of fans turned on and the odor concentration, ensuring that the deodorant particles after atomization have sufficient initial velocity, effectively delivered to the exhaust pipe 20 meters away, suspension time ≥18s, suitable for high-power fans and high-speed exhaust conditions.

[0107] (4) Exhaust duct misting component 4: The exhaust duct 41 is made of 160mm thick PVC wind-resistant pipe, which is laid out separately 30cm outside the fan outlet, fixed independently, and does not contact the fan; the pipe wall is opened with 2mm diameter densified annular mist outlet holes 42 every 8cm to counteract the exhaust airflow from all directions.

[0108] (5) Intelligent electronic control unit 5: All-domain fan linkage and control, equipped with odor concentration adaptive control module, which can automatically adjust the flow rate of dual pumps and the speed of mist blowing fan according to real-time odor value, and has remote operation and maintenance and liquid level linkage machine lock function.

[0109] 3. On-site operating parameters

[0110] Under normal high-load operation, the intelligent electronic control unit 5 drives the misting fan to match the mist supply at the most efficient speed according to the operating status of all 12 fans. The first peristaltic pump 21 has a flow rate of 0.6L / min, and the second peristaltic pump 22 has a flow rate of 0.9L / min; constant linkage spray mode: spraying occurs as soon as the fan starts, without interruption or pause; in extreme high-temperature weather for manure fermentation, the electronic control unit automatically increases the flow rate of both pumps by 15% and simultaneously increases the speed of the misting fan to increase mist output and enhance deodorization efficiency.

[0111] 4. Implementation Results

[0112] The ammonia removal rate outside the site is 78%, and the stubborn hydrogen sulfide removal rate is 81%, meeting the high environmental protection emission requirements of the ecological zone; the utilization rate of the agent is increased by 38%, the whole process is unattended operation and maintenance, suitable for all-weather high-intensity deodorization operations in large-scale breeding parks, the equipment is suitable for harsh outdoor working conditions with large air volume and high dust, and the annual failure rate is less than 2%.

[0113] The examples provided in this invention are not intended to limit the implementation. Those skilled in the art will recognize that various variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations, and any obvious variations or modifications derived therefrom are still within the scope of this invention.

Claims

1. A dual-tank independent liquid supply ultrasonic atomization deodorization system for livestock farms, characterized in that: It includes a dual independent medicine storage tank assembly (1), a dual-channel peristaltic pump assembly (2), an ultrasonic atomizing host (3), an exhaust duct mist distribution assembly (4), and an intelligent electronic control unit (5); The dual independent drug storage tank assembly (1) includes a first drug storage tank (11) and a second drug storage tank (12). The first drug storage tank (11) and the second drug storage tank (12) are sealed and isolated without any communication structure. The two tanks have the same structural dimensions. The first drug storage tank (11) is sealed with a top cover (13) and has a visual liquid level observation window (14) embedded in the side wall. The bottom is equipped with an independent liquid outlet (15). The two tanks are completely separated and used to store different drugs separately. The dual-channel peristaltic pump assembly (2) includes a first peristaltic pump (21) and a second peristaltic pump (22). The inlet pipe of the first peristaltic pump (21) is sealed and connected to the independent outlet (15) of the first medicine storage tank (11). The inlet pipe of the second peristaltic pump (22) is sealed and connected to the independent outlet (15) of the second medicine storage tank (12). The two peristaltic pumps can be independently controlled to start, stop and speed. The liquid inlet of the ultrasonic atomizing host (3) is connected to the liquid outlet of the first peristaltic pump (21) and the second peristaltic pump (22) through independent pipelines, and the two agents converge at the liquid inlet of the ultrasonic atomizing host (3). The exhaust duct misting assembly (4) includes an exhaust duct (41) that is separately arranged corresponding to the tail end of the negative pressure fan in the farm. The exhaust duct (41) and the tail end of the negative pressure fan are arranged independently. The exhaust duct (41) has multiple sets of through-type mist outlet holes (42) evenly opened along the axial direction on the pipe wall. The mist outlet of the ultrasonic atomizing host (3) is connected to the inside of the exhaust duct (41) through the transmission pipe (43). The intelligent electronic control unit (5) is electrically connected to the first peristaltic pump (21), the second peristaltic pump (22), and the ultrasonic atomizing host (3), respectively. The intelligent electronic control unit (5) integrates a dual-pump independent speed regulation module, a timed intermittent control module, and a low liquid level audible and visual alarm module.

2. The ultrasonic atomization deodorization system with independent liquid supply from dual medicine tanks at the tail end of a farm, as described in claim 1, is characterized in that: The first medicine storage box (11) is used to store plant essential oil functional liquid, and the second medicine storage box (12) is used to store organic acid neutralization liquid.

3. The ultrasonic atomization deodorization system with independent liquid supply from dual medicine tanks at the tail end of a farm, as described in claim 1, is characterized in that: The bottom of the inner cavity of both the No. 1 medicine storage tank (11) and the No. 2 medicine storage tank (12) is equipped with a contact liquid level sensor. The signal output terminal of the liquid level sensor is electrically connected to the low liquid level sound and light alarm module of the intelligent electronic control unit (5).

4. The ultrasonic atomization deodorization system with independent liquid supply from dual medicine tanks at the tail end of a farm, as described in claim 1, is characterized in that: The external delivery pipelines of the first peristaltic pump (21) and the second peristaltic pump (22) are made of polymer tubing that is resistant to weak acid corrosion and terpene plant essential oil corrosion, and each set of independent delivery pipelines is equipped with a one-way anti-backflow valve structure at the end.

5. The ultrasonic atomization deodorization system with independent liquid supply from dual medicine tanks at the tail end of a farm, as described in claim 1, is characterized in that: Multiple sets of mist outlet holes (42) are distributed in a ring array at equal intervals on the wall of the exhaust pipe (41). The exhaust pipe (41) and the transmission pipe (43) are both corrosion-resistant rigid PVC pipes.

6. The ultrasonic atomization deodorization system with independent liquid supply from dual medicine tanks at the tail end of a farm, as described in claim 1, is characterized in that: The intelligent electronic control unit (5) has a reserved linkage connection port for the negative pressure fan of the breeding farm, which is used to collect the start and stop signals of the negative pressure fan and control the start and stop of the system.

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